CN103156384B - Folding table - Google Patents

Abstract

The invention provides a kind of folding table, this folding table, while the reliable and stable using state obtaining top board and folded state, possesses and easily and reliably can adjust leg or the top board height adjuster to the desk etc. of the height on ground.Top board can fold by this folding table.Be provided with lock link, this lock link is provided with and can engages the holding section departed from slot.The holding section of lock link is formed as and the tabular on this lock link the same face.The upper end side face of engagement member is configured on the rotary area the same face with described holding section.At the upper end side face of described engagement member, the rotary area face along described holding section forms multiple slot.

Description

Folding table

Technical field

The present invention relates to a kind of folding table, this folding table realizes miniaturization and the strengthening support strength of the locking device of top board, while the reliable and stable using state obtaining top board and folded state, when preventing top board from folding, finger sandwiches, guarantee the security on using, and realize easily assembling, on the other hand, possesses the height adjuster of desk etc., its strengthening is arranged on such as desk, chair, the support strength of the construction bolt of the castor of the leg bottoms such as furniture, while losing preventing it or being out of shape, easily and reliably can adjust leg or the top board height to ground, its adjustment height can be kept for a long time.

Background technology

As the locking device of the top board of folding table, there is following locking device: the connecting plate being formed with two slots is installed on the top of leg pillar, the ring being equipped with the stop pin that can be sticked in above-mentioned slot can be installed with dynamic with deadlock lever, stop pin is sticked in a slot, maintain the folded state of top board, stop pin is sticked in another slot, maintains the using state (for example, referring to patent document 1) of top board.

But, in above-mentioned locking device, due to when stop pin engages with slot, stop pin is sticked in slot with overhanging shape, therefore usually the support strength of stop pin is weak, when the excess load of top board or the displacement of pillar time stop pin distortion, there is non-serviceable problem.

In addition, due to stop pin is sticked in slot from the outside of the support frame of top board, what therefore need stop pin or ring occupies space and revolution space, while having encouraged the maximization of folding table, there is finger and is sandwiched in stop pin or the problem between ring and support frame.

In addition, owing to being maintained folded state or the using state of top board by stop pin and the engaging of slot, therefore in the holding state or posture of top board, there is worry, such as, there is the top board problem that appearance poor is such by exceedingly folding.

And due to a pair connecting plate is welded in horizontal frame, and is fixed by screw by this connecting plate and be installed on the top of leg pillar, the assembling that therefore there is horizontal frame is complicated, the problems such as troublesome poeration.

As the method solving such problem, there is following method: the upside pillar screw of the die casting being formed with the connection projection of two slots and corner post shape is fixed on support-column main body, the axle portion being equipped with the lock link of the stop pin that can be sticked in above-mentioned slot can be installed with dynamic with deadlock lever, simultaneously, lateral brace in configuration in the lower frame of top board, the top of upper lateral brace can be rotationally connected with this lower frame, the connection box of cornue shape is inserted also screw and be fixed on above-mentioned connection projection, stop pin is sticked in a slot, maintain the folded state of top board, stop pin is sticked in another slot, maintain the using state of top board (such as, with reference to patent document 2).

But, in above-mentioned locking device, due to when stop pin engages with slot, stop pin is sticked in slot with overhanging shape, therefore usually the support strength of stop pin is weak, when the excess load of top board or the displacement of pillar time stop pin distortion, there is non-serviceable problem.

In addition, due to stop pin is sticked in slot from the inner side of the lower frame of top board, what therefore need stop pin or lock link occupies space and motion space, while having encouraged the maximization of folding table, there is finger and is sandwiched in stop pin or the problem between lock link and lower frame.

In addition, owing to being maintained folded state or the using state of top board by stop pin and the engaging of slot, therefore in the holding state or posture of top board, there is worry, such as, there is the top board problem that appearance poor is such by exceedingly folding.

And be fixed on connection projection owing to the both ends of a pair connection box to be inserted also screw, the assembling that therefore there is connection box is still complicated, the problems such as troublesome poeration.

As the method solving such problem, there is following method: in the upper end of leg main body, the installation component in the reverse U shape cross section of roof supporting can be connected rotationally, in the inner side of this installation component, the limiting member in U-shaped cross section can be connected rotationally, at the leading section of this limiting member erection pin, by spring, above-mentioned limiting member can be exerted a force down rotationally, can configure with can being sticked in the top of above-mentioned limiting member with dynamic pressing tablet with action bars, on the other hand, the gripper shoe being formed with two holding sections is set in the upper end of leg main body, pin is sticked in a holding section, maintain the folded state of top board, pin is sticked in another holding section, maintain the using state of top board (such as, with reference to patent document 3).

In above-mentioned locking device, because in the leading section of limiting member, erection is sold, the pars intermedia of this pin is sticked in holding section, therefore the support strength sold is reinforced, when the excess load of top board or the displacement of pillar time can prevent the distortion of stop pin substantially, but pin is sticked in the textural of holding section, in the support strength of pin, still has worry.

In addition, owing to limiting member to be configured in the inner side of installation component, therefore limiting member or pin motion space or to occupy space more or less compact, in addition, finger clamp can be prevented at pin or between limiting member and installation component, but due at the inner side of installation component configuration pin or spring, therefore there is the problem causing installation component to maximize.

And, owing to being maintained folded state or the using state of top board by pin and the engaging of holding section, therefore in the holding state or posture of top board, there is worry, such as, there is the top board problem that appearance poor is such by undue folds.

In addition, due to screw fixed installation base portion inside the upper end of a pair leg main body, and be fixedly connected with beam between this mounting seat portion, the assembling that therefore there is tie-beam is complicated, the problems such as troublesome poeration.

On the other hand, as have can on such as ground the height adjuster of the desk of the castor of movement, there is following device: below the both ends of leg, form through hole, at the opening edge hold-down nut of this through hole, the recess departing from ground mounting and adjusting handle can be engaged in this nut, the construction bolt being arranged at castor is inserted in the connecting hole being formed at above-mentioned recess, while being screwed in above-mentioned nut, spring is configured between adjusting handle and the spring support being arranged at construction bolt, when Height Adjustment, press down adjusting handle, rotate to suitable direction, adjust the screw-in amount of construction bolt and carry out (such as, with reference to patent document 4).

But, in said apparatus, owing to only supporting construction bolt with the nut be fixed on leg, when therefore there is the excess load of desk or castor, construction bolt bends, and adjusting handle is damaged and be difficult to use in addition, or, pushed back when adjusting handle contacts with surrounding member, the adjustment position of construction bolt changes such problem.

As the method solving such problem, there is following method: projection is set at the bottom side face of the leg of desk, in this bottom via spring, screw in the construction bolt being based in the fulcrum of castor, the locking member of hollow tube-shape is configured at the side face of the bottom of above-mentioned leg and fulcrum, locking member inner face formed can with the groove of above-mentioned protrusions snap, when Height Adjustment, press down locking member, rotate to suitable direction, adjust the screw-in amount of construction bolt and carry out (for example, referring to patent document 5).

But, in said apparatus, support due to construction bolt is screwed in the bottom of leg, when therefore still there is the excess load of desk or castor, construction bolt bends, and locking member is damaged and be difficult to use in addition, or, pushed back when locking member contacts with surrounding member, the adjustment position of construction bolt changes such problem.

Thus, as the method solving such problem, there is following method: in the bottom of the leg of folding table, via spring washer, screw in castor one and be formed at the path external thread part of caster axle, the adjustment cylinder being formed with internal thread part is configured between the bottom and castor of above-mentioned leg, the large footpath external thread part of caster axle is screwed in this internal thread part, when Height Adjustment, adjustment cylinder is rotated to suitable direction, adjustment adjusts the interval of the expanding stage portion of the upper end of cylinder and the bottom of leg and carries out (for example, referring to patent document 6).

In said apparatus, the external thread part in the path of caster axle and large footpath is screwed in the bottom of leg and the internal thread part of adjustment cylinder, the support strength of strengthening caster axle, but, there is caster axle to rotate due to vibration when using or impact, along with aging, the adjustment position of caster axle changes such problem.

Thus, as the method solving such problem, there is following method: internal thread part and plastic adjuster are set in the bottom of the leg of folding table, construction bolt with adjuster one can screw in by this internal thread part, the circumferential groove that can insert a part for adjuster is formed in the outside of internal thread part, this adjuster is fixed on above-mentioned construction bolt, and make this screws, this adjuster possesses braking parts, this braking parts is when inserting above-mentioned circumferential groove, be connected to the wall of circumferential groove, a part deforms, this wall is exerted a force, simultaneously, stop the rotation of adjuster, when Height Adjustment, construction bolt is screwed in the internal thread part of leg, undertaken by adjusting its screw-in amount.

And, when above-mentioned adjustment, by making all facial disfigurements of braking parts and the frictional resistance be connected between the force of the wall of circumferential groove and this wall and braking parts, stoping the rotation of adjuster, preventing it from loosening (for example, referring to patent document 7).

But, there is following problem in said apparatus: the support strength of construction bolt is inadequate, be difficult to prevent its distortion or lose, in addition, complicated in the formation of the bottom of leg and adjuster, be difficult on the basis of making, owing to using all the year round, the force of the braking parts of adjuster and the frictional resistance between the wall of circumferential groove and braking parts reduce, and adjuster rotates and produces loosening, and adjustment position originally changes in a short time.

Prior art document

Patent document

The practical new case of ［ patent document 1 ］ Japan logs in No. 2572757 publication

［ patent document 2 ］ Japanese Patent No. 4471440 publication

［ patent document 3 ］ Japanese Unexamined Patent Publication 2004-121441 publication

The practical new case of ［ patent document 4 ］ Japan logs in No. 2532189 publication

［ patent document 5 ］ Japanese Patent No. 4009211 publication

［ patent document 6 ］ Japanese Unexamined Patent Publication 2007-261542 publication

［ patent document 7 ］ Japanese Patent No. 4805723 publication

Summary of the invention

(inventing the problem that will solve)

The object of the invention is to solve such problem, a kind of folding table is provided, this folding table realizes miniaturization and the strengthening support strength of the locking device of top board, while the reliable and stable using state obtaining top board and folded state, when preventing top board from folding, finger sandwiches, guarantee the security on using, and realize easily assembling, on the other hand, possesses the height adjuster of desk etc., its strengthening is arranged on such as desk, chair, the support strength of the construction bolt of the castor of the leg bottoms such as furniture, while losing preventing it or being out of shape, easily and reliably can adjust leg or the top board height to ground, its adjustment height can be kept for a long time.

(technical scheme of technical solution problem)

In the first invention, folding table possesses: multiple lower frame, is arranged on below top board, engagement member, can rotate the earth's axis and support by this lower frame, leg pillar, supports this engagement member, multiple slot, is formed in the side face of described engagement member, lock link, an end can be supported by described lower frame rotationally, and arranges in the other end and can engage with described slot the holding section departed from, action bars, can with lock link with dynamic, and top board can be folded, in this folding table, the holding section of lock link is formed as and the tabular on this lock link the same face, the upper end side face of engagement member is configured on the rotary area the same face with the holding section of this lock link, and at the upper end side face of this engagement member, rotary area face along described holding section forms multiple slot, with outside lock link being configured in lower frame, and project pin in the leading section of this lock link and compare as the prior art of holding section, make lock link miniaturized, make the rotation of lock link and pin or occupy spaces compact, while the miniaturization realizing this locking device, compared with described pin being sticked in the prior art of slot, prevent the distortion of holding section or lose, the rigidity of strengthening lock link or holding section, its support strength can be strengthened.

In the second invention, lower frame is become reverse U shape cross section, the upper end side face of described lock link and engagement member is configured in the inner side of this lower frame, the upper end side face of lock link and engagement member is covered the inner side at lower frame, when preventing top board folding, finger sandwiches, and guarantees the security on using.

In the 3rd invention, lock link is formed as tabular, simultaneously, in the centre position of the upper end side face of described engagement member, form the slot with the thickness of slab same widths of lock link, while the densification of the miniaturization He its revolution space that realize lock link, compared with forming the situation of slot with the thickness direction along engagement member, realize the miniaturization of engagement member and the strengthening of rigidity, its support strength can be strengthened.

In the 4th invention, between the slot of upper end side face being formed at described engagement member, formed and can snap in the cam path of the holding section of lock link, smoothly and reliably can carry out the engaging of lock link and slot.

In the 5th invention, the shaft supporting part of engagement member is arranged at the opposition side of described slot, groove is propped up in the face of this shaft supporting part arranges pivot, simultaneously, the bracket that can support the upper end of engagement member is rotationally set in the inner side of described lower frame, groove can be propped up with described pivot in the pivot branch of this bracket engagingly configure, via slot, lock link is utilized to support the side of engagement member, the pivot branch of the opposite side bracket of engagement member is supported, correctly can obtain stable level and the folded state of top board, security when can guarantee the use of top board and time folding.

In the 6th invention, the opening portion of propping up groove at pivot forms smooth holding section, simultaneously, smooth fastener is formed in the pivot branch of described bracket, this holding section and fastener engagingly can be configured when top board folding, the correct folded state of top board can be obtained, evenly and correctly can fold top board.

In the 7th invention, configure with the base portion of bracket can being sticked in the upper end of the axle support-side of engagement member, correct posture when can obtain the use of top board and time folding.

In the 8th invention, the base portion of bracket is formed as roughly H word shape, its each a pair leading section is configured with can being sticked in the inner face of the curved tabs of lower frame, the rotation of the base portion of bracket can be prevented, promote the level and smooth and correct action of engagement member or lock link, stable using state and the folded state of top board can be obtained.

In the 9th invention, bracket is made up of synthetic resin or die casting or iron and steel, and corresponding load reasonably selects the material of bracket, adopts synthetic resin system when top board small-size light-weight, adopts die casting or steel plate system when the large-scale weight of top board.

In the tenth invention, engagement member and leg pillar one are formed, can number of components be reduced, realize the easy of the succinct of structure and making.

In the 11 invention, hook draw-in groove is formed at the bottom side face of described engagement member, simultaneously, at the top side face of leg pillar, the elongated hole with described hook draw-in groove similar shape is set, the hook card being arranged on the both ends of connection box is arranged at described hook draw-in groove and elongated hole with can engaging disengaging, this connecting frame is located between the leg pillar of left and right, easily can carries out interim assembling and the assembling of connection box.

In the 12 invention, engagement pawl is set in the side of hook card, meanwhile, is formed can engage the slot and engagement pawl that depart from described engagement pawl in the side of the opening edge of described hook draw-in groove, interim assembling and the assembling of connection box can be carried out easily.

In the 13 invention, on the top of leg pillar, hook bolt is installed, link up with and leg along projecting up and down in the side of the upper end of this hook bolt, described leg is installed on leg pillar, make described hook protrude from the upper end of this leg pillar, make described leg play the effect of the cap of leg pillar, simultaneously, the hook that can tangle the mobile division of handbag class is set in the both sides of desk, the convenience in the use of desk can be improved.

In the 14 invention, the mobile division hook of handbag class can be stuck in hook, fitly can take care of handbag class.

In the 15 invention, the upper end of leg pillar is configured in slightly lower position, meanwhile, the medial surface of hook is formed as taper, expand the space immediately below top board, widen the hook card space on hook bolt, improve its hook card ability.

In the 16 invention, the upper end of hook bolt is formed as convex curved surface, prevents the mobile division on convex curved surface due to the breakage rubbed or nuzzle up and produce, handbag class can be hung safely.

In the 17 invention, screwed hole is formed in the bottom of leg pillar, and possess earthing component construction bolt being rotatably installed on this screwed hole and the adjuster being bolted in described construction bolt, by the rotation of this adjuster, the screw-in amount of construction bolt for leg pillar can be adjusted, be suitable for realizing the height adjuster of the top board of the miniaturization of locking device and the folding table of strengthening support strength etc.

In the 18 invention, at leg pillar, detachably leg end is set, screwed hole is formed in the inner side of this leg end, the spiral shell axle that can screw togather with this screwed hole is arranged at adjuster, the screwed hole that can screw togather construction bolt is set in the inside of this spiral shell axle, be spirally connected in the outside of described construction bolt the spiral shell axle of adjuster, the bottom of leg end is installed in the outside of this spiral shell axle, utilize the outside of the bottom dual support construction bolt of adjuster and leg end, strengthen its support strength, prevent the distortion of construction bolt or lose, firm height adjuster can be obtained, simultaneously, the installation for leg end of adjuster and castor can be carried out respectively, leg end is for the installation of leg pillar, rationally and easily can carry out these assemblings.

In the 19 invention, at the relative inner face of leg end, multiple slot is set, simultaneously, the baffle ring of multiple engagement pawl is fixedly installed in the upper end of the spiral shell axle of adjuster, described engagement pawl engagingly can be arranged with described slot, prevent the rotation of the spiral shell axle of adjuster, stop the change of the height and position after regulating, can long term maintenance leg or top board etc. adjustment height, engagement pawl engagingly can be arranged with slot, support the upper end of construction bolt, can strongly prevent the distortion of construction bolt or lose.

In the 20 invention, at the relative inner face of leg end, two slots are set, the angle of these two slots is formed as identical with the pivot angle of two adjacent engagement pawl, the position of rotation of the engagement pawl caused by the rotating operation of adjuster is sticked in slot and keeps, can the height adjustment locations that formed by adjuster of long term maintenance.

In the 21 invention, the moving direction along the spiral shell axle of adjuster forms described slot, can carry out the Height Adjustment of leg pillar or top board etc. in the whole forming region of slot on a large scale, can maintain its adjustment position.

In the 22 invention, engagement pawl can be formed to inward-outward direction elastic displacement, realize the rotation of the baffle ring in leg end, smoothly and easily can carry out height and position adjustment, meanwhile, in the adjusting range of wide range set height and position, its adjustment position can be maintained.

In the 23 invention, leg end, baffle ring and adjuster are synthetic resin system, realize its lightweight and simple and cheap making, meanwhile, can give suitable elasticity, strengthen its intensity.

In the 24 invention, leg end and leg pillar one are formed, reduces number of components and make simple for structure, meanwhile, alleviating the trouble of assembling.

In the 25 invention, earthing component is castor, can realize the movement of desk, chair, furniture etc. easily.

(effect of invention)

In the first invention, owing to the holding section of lock link being formed as and the tabular on this lock link the same face, the upper end side face of engagement member is configured on the rotary area the same face with the holding section of this lock link, and at the upper end side face of this engagement member, rotary area face along described holding section forms multiple slot, therefore with outside lock link being configured in lower frame, and project pin in the leading section of this lock link and compare as the prior art of holding section, make lock link miniaturized, make the rotation of lock link and pin or occupy spaces compact, while the miniaturization realizing this locking device, compared with described pin being sticked in the prior art of slot, prevent the distortion of holding section or lose, the rigidity of strengthening lock link or holding section, its support strength can be strengthened.

In the second invention, due to lower frame is become reverse U shape cross section, the upper end side face of described lock link and engagement member is configured in the inner side of this lower frame, therefore, it is possible to the upper end side face of lock link and engagement member is covered the inner side at lower frame, when preventing top board folding, finger sandwiches, and guarantees the security on using.

In the 3rd invention, due to lock link is formed as tabular, simultaneously, in the centre position of the upper end side face of described engagement member, form the slot with the thickness of slab same widths of lock link, therefore while the densification of the miniaturization He its revolution space that realize lock link, compared with forming the situation of slot with the thickness direction along engagement member, realize the miniaturization of engagement member and the strengthening of rigidity, its support strength can be strengthened.

In the 4th invention, due between the slot of upper end side face being formed at engagement member, formed and can snap in the cam path of the holding section of lock link, therefore, it is possible to smoothly and reliably carry out the engaging of lock link and slot.

In the 5th invention, owing to the shaft supporting part of engagement member to be arranged at the opposition side of described slot, groove is propped up in the face of this shaft supporting part arranges pivot, simultaneously, the bracket that can support the upper end of engagement member is rotationally set in the inner side of described lower frame, groove can be propped up with described pivot in the pivot branch of this bracket engagingly configure, therefore via slot, lock link is utilized to support the side of engagement member, the pivot branch of the opposite side bracket of engagement member is supported, correctly can obtain stable level and the folded state of top board, security when can guarantee the use of top board and time folding.

In the 6th invention, because the opening portion of propping up groove at pivot forms smooth holding section, simultaneously, smooth fastener is formed in the pivot branch of described bracket, this holding section and fastener engagingly can be configured when top board folding, therefore, it is possible to obtain the correct folded state of top board, evenly and correctly top board can be folded.

In the 7th invention, owing to configuring with the base portion of bracket can being sticked in the upper end of the axle support-side of engagement member, therefore, it is possible to correct posture when obtaining the use of top board and time folding.

In the 8th invention, due to the base portion of bracket is formed as roughly H word shape, its each a pair leading section is configured with can being sticked in the inner face of the curved tabs of lower frame, therefore, it is possible to prevent the rotation of the base portion of bracket, promote the level and smooth and correct action of engagement member or lock link, stable using state and the folded state of top board can be obtained.

In the 9th invention, because bracket is made up of synthetic resin or die casting or iron and steel, therefore, it is possible to corresponding load reasonably selects the material of bracket, such as, adopt synthetic resin system when top board small-size light-weight, adopt die casting or steel plate system when the large-scale weight of top board.

In the tenth invention, owing to engagement member and leg pillar one being formed, therefore, it is possible to reduce number of components, realize the easy of the succinct of structure and making.

In the 11 invention, because the bottom side face at described engagement member forms hook draw-in groove, simultaneously, at the top side face of leg pillar, the elongated hole with described hook draw-in groove similar shape is set, the hook card being arranged on the both ends of connection box is arranged at described hook draw-in groove and elongated hole with can engaging disengaging, this connecting frame is located between the leg pillar of left and right, therefore, it is possible to easily carry out interim assembling and the assembling of connection box.

In the 12 invention, owing to arranging engagement pawl in the side of hook card, meanwhile, the slot and engagement pawl that depart from can be engaged with described engagement pawl, therefore, it is possible to carry out interim assembling and the assembling of connection box easily in the side formation of the opening edge of described hook draw-in groove.

In the 13 invention, owing to installing hook bolt on the top of leg pillar, link up with and leg along projecting up and down in the side of the upper end of this hook bolt, described leg is installed on leg pillar, make described hook protrude from the upper end of this leg pillar, therefore make described leg play the effect of the cap of leg pillar, simultaneously, the hook that can tangle the mobile division of handbag class is set in the both sides of desk, the convenience in the use of desk can be improved.

In the 14 invention, owing to the mobile division hook of handbag class can be stuck in hook, therefore, it is possible to fitly take care of handbag class.

In the 15 invention, due to the upper end of leg pillar is configured in slightly lower position, meanwhile, the medial surface of hook is formed as taper, therefore expands the space immediately below top board, widen the hook card space on hook bolt, its hook card ability can be improved.

In the 16 invention, due to the upper end of hook bolt is formed as convex curved surface, therefore prevents the mobile division on convex curved surface due to the breakage rubbed or nuzzle up and produce, handbag class can be hung safely.

In the 17 invention, owing to forming screwed hole in the bottom of leg pillar, and possess earthing component construction bolt being rotatably installed on this screwed hole and the adjuster being bolted in described construction bolt, by the rotation of this adjuster, the screw-in amount of construction bolt for leg pillar can be adjusted, therefore there is the effect of the height adjuster of the top board of the folding table of miniaturization and the strengthening support strength being suitable for realizing locking device etc.

In the 18 invention, owing to detachably arranging leg end at leg pillar, screwed hole is formed in the inner side of this leg end, the spiral shell axle that can screw togather with this screwed hole is arranged at adjuster, the screwed hole that can screw togather construction bolt is set in the inside of this spiral shell axle, be spirally connected in the outside of described construction bolt the spiral shell axle of adjuster, the bottom of leg end is installed in the outside of this spiral shell axle, therefore the outside of the bottom dual support construction bolt of adjuster and leg end is utilized, strengthen its support strength, prevent the distortion of construction bolt or lose, firm height adjuster can be obtained, simultaneously, the installation for leg end of adjuster and castor can be carried out respectively, leg end is for the installation of leg pillar, rationally and easily can carry out these assemblings.

In the 19 invention, because the relative inner face at leg end arranges multiple slot, simultaneously, the baffle ring of multiple engagement pawl is fixedly installed in the upper end of the spiral shell axle of adjuster, described engagement pawl engagingly can be arranged with described slot, therefore the rotation of the spiral shell axle of adjuster is prevented, stop the change of the height and position after regulating, can long term maintenance leg or top board etc. adjustment height, engagement pawl engagingly can be arranged with slot, support the upper end of construction bolt, can strongly prevent the distortion of construction bolt or lose.

In the 20 invention, owing to arranging two slots at the relative inner face of leg end, the angle of these two slots is formed as identical with the pivot angle of two adjacent engagement pawl, the position of rotation of the engagement pawl therefore caused by the rotating operation of adjuster is sticked in slot and keeps, can the height adjustment locations that formed by adjuster of long term maintenance.

In the 21 invention, the moving direction along the spiral shell axle of adjuster forms described slot, can carry out the Height Adjustment of leg pillar or top board etc. in the whole forming region of slot on a large scale, can maintain its adjustment position.

In the 22 invention, due to engagement pawl can be formed to inward-outward direction elastic displacement, therefore the rotation of the baffle ring in leg end is realized, smoothly and easily can carry out height and position adjustment, simultaneously, in the adjusting range of wide range set height and position, its adjustment position can be maintained.

In the 23 invention, because leg end, baffle ring and adjuster are synthetic resin system, therefore realize its lightweight and simple and cheap making, meanwhile, suitable elasticity can be given, strengthen its intensity.

In the 24 invention, owing to leg end and leg pillar one being formed, therefore, it is possible to reduce number of components and make simple for structure, meanwhile, the trouble of assembling can be alleviated.

In the 25 invention, because earthing component is castor, therefore, it is possible to realize the movement of desk, chair, furniture etc. easily.

Accompanying drawing explanation

Fig. 1 is the stereogram that the use form being suitable for meeting desk of the present invention is shown.

Fig. 2 is the front view of Fig. 1.

Fig. 3 is the left view of Fig. 1, amplifies using state and folded state that top board is shown.

Fig. 4 decomposes the stereogram that major part of the present invention is shown.

Fig. 5 decomposes to amplify the stereogram of major part of the present invention is shown, the assembled condition of bracket in lower frame and lock link, engagement member and leg pillar is shown.

Fig. 6 is the front view being applicable to engagement member of the present invention.

Fig. 7 is the right view of Fig. 6.

Fig. 8 is the stereogram being applicable to engagement member of the present invention.

Fig. 9 is the sectional view of the A-A line along Fig. 7.

Figure 10 is the sectional view of the major part that the using state being suitable for meeting desk of the present invention is shown, the behaviour in service expanding top board is shown.

Figure 11 is the stereogram of the major part of decomposing when the assembling being suitable for meeting desk of the present invention is shown, the situation one-sided leg pillar being inserted engagement member is shown.

Figure 12 is the stereogram of the major part that the assembled state being suitable for meeting desk of the present invention is shown, the assembled condition of engagement member, one-sided leg pillar and connection box is shown.

Figure 13 is the sectional view of the major part when assembling being suitable for meeting desk of the present invention is shown, illustrates and connection box is installed on the situation before engagement member.

Figure 14 is the sectional view of the major part when assembling being suitable for meeting desk of the present invention is shown, the situation be installed on by connection box in engagement member process is shown.

Figure 15 is the sectional view of the major part when assembling being suitable for meeting desk of the present invention is shown, situation connection box being installed on engagement member is shown.

Figure 16 amplifies the sectional view that the major part of the using state being suitable for meeting desk of the present invention is shown, the situation just starting folding top board is shown.

Figure 17 amplifies the sectional view that the major part of the using state being suitable for meeting desk of the present invention is shown, the situation in top board folding process is shown.

Figure 18 amplifies the sectional view of the major part of the using state being suitable for meeting desk of the present invention is shown, illustrate top board fold after situation.

Figure 19 decomposes the stereogram amplifying and the major part of the height adjuster being applicable to top board of the present invention is shown.

Figure 20 decomposes the stereogram amplifying and the major part of above-mentioned height adjuster is shown, the installation situation of the baffle ring in leg end is shown.

Figure 21 amplifies the top view that the major part of above-mentioned height adjuster is shown, the situation after the installation of the baffle ring in leg end is shown.

Figure 22 is the sectional view of the major part that above-mentioned height adjuster is shown, the extreme lower position adjustment situation of leg end or top board is shown.

Figure 23 is the sectional view of the major part that above-mentioned height adjuster is shown, the Height Adjustment by being undertaken by adjuster is shown, the extreme higher position adjustment situation of leg end or top board.

Figure 24 amplifies the situation after the installation of the baffle ring being applicable to above-mentioned height adjuster is shown.

Figure 25 is the stereogram that the meeting desk being suitable for the second embodiment of the present invention is shown.

Figure 26 is the stereogram that the meeting desk being suitable for the 3rd embodiment of the present invention is shown, arranges hook at the sidepiece of this desk, makes it possible to keeping handbag class.

Figure 27 decomposes the stereogram that the major part of above-mentioned 3rd embodiment is shown.

Symbol description

1: folding table (meeting desk)

4: lower frame

4a: curved tabs

5: engagement member

6,8: leg pillar

18: bracket

18a: pivot branch

19: substrate

23: fastener

24,25: slot

26: cam path

28: pivot props up groove

29: holding section

33: hook draw-in groove

35: lock link

35a: engaging protrusion

39: action bars

41: connection box

44: hook card

45: engagement pawl

46: elongated hole

47: slot

48: engagement pawl

82: hook bolt

84: hook

85: leg

88: handbag class

89: mobile division.

Detailed description of the invention

Below, the illustrated embodiment of the meeting desk as folding table of the locking device being applicable to the present invention to have top board is described, in Fig. 1 to Figure 24,1 is folding table, and this table 1 possesses: the top board 2 of rectangle of growing crosswise; Strengthen frame 3, the length direction configured separate below this top board 2 a pair of cornue; Roughly the lower frame 4 in reverse U shape cross section, connects the both ends of this enhancing frame 3, is screwed in by screw below the both ends being fixed on top board 2; The engagement member 5 of aluminium diecasting, one end can be rotationally connected with the pars intermedia of this lower frame 4; The leg pillar 6 of the linearity of steel pipe, is connected to the other end of this engagement member 5; The leg pillar 8 of the roughly L-shaped shape of steel pipe, is connected to outside via the jockey 7 in U-shaped cross section on the top of this leg pillar 6; Plastic leg end 9,10, is connected to the bottom of leg pillar 6,8; Castor 12,13, around the axle being rotatably installed on this leg end 9,10, is the earthing component can walked on ground 11.In figure, 8a is mounted in the cap of the synthetic resin of the upper end of leg pillar 8.

Steel plate bending becomes roughly reverse U shape cross section to be formed by above-mentioned lower frame 4, at the pars intermedia of its a pair curved tabs 4a, 4a, through hole 14,15 is set, above smooth between above-mentioned curved tabs 4a, 4b, 4b forms multiple Screw hole 16 and connecting hole 17, and plastic bracket 18 is installed on downward this connecting hole 17.

In this case, the strength reinforcing requirement of the bracket 18 produced in order to the maximization along with top board 2, also can replace synthetic resin fat system, bracket 18 is adopted aluminium diecasting system or steel plate system.

Above-mentioned bracket 18 is formed as the roughly tabular of wall thickness, end possesses the substrate 19 that can be arranged on the above-mentioned roughly H-shaped shape of the inner side of 4b above thereon, 4 of the leading section of this substrate 19 positions are configured with can being sticked in the inner face of two curved tabs 4a of lower frame 4, the rotation after preventing bracket 18 from installing.

Outside the mediad of aforesaid substrate 19, project the engaging protrusion 20 in band gap, this engaging protrusion 20 is pressed in above-mentioned connecting hole 17, its neck is sticked in the opening edge of connecting hole 17 and is installed on lower frame 14.

The pivot branch 18a of the roughly arc-shaped of being shaped in the bottom of above-mentioned bracket 18, forms the pivot that can insert pivot 21 in the central authorities of this pivot branch 18a and props up hole 22, in addition, form smooth snap-latch surface 23 at the side end of arc-shaped side face.

The top of above-mentioned engagement member 5 is formed as the corner post shape that can insert the abnormity inside lower frame 4, forms smooth locking surface 5a in the upper end of its outer peripheral face, forms even surface 5b in the toe lateral of above-mentioned outer peripheral face.

The first slot 24 of chevron is formed at the pars intermedia of above-mentioned locking surface 5a, in addition, jagged second slot 25 is formed at the pars intermedia of above-mentioned even surface 5b, lock link described later can be engagingly configured in these slots 24,25, simultaneously, between above-mentioned slot 24,25, form the cam path 26 with this groove 24,25 same widths, the holding section of above-mentioned lock link can be accommodated slidably in this cam path 26.

At the rear portion side side face on the top of above-mentioned engagement member 5, a pair beam barrel portion 27,27 configured separate, the pivot forming shrinkage pool shape between this beam barrel portion 27,27 props up groove 28, and propping up in groove 28 at this pivot can the pivot branch 18a of engagingly receptacle bracket 18.

The upper side opening edge propping up groove 28 at above-mentioned pivot forms smooth locking surface 29, and when top board 2 folds, the snap-latch surface 23 of above-mentioned bracket 18 can be sticked in above-mentioned locking surface 29.

Above-mentioned beam barrel portion 27,27 forms axis hole 30,30, the pivot branch 18a of bracket 18 is inserted between this beam barrel portion 27,27, in addition, pivot 21 is inserted in the through hole 14 of lower frame 4, be inserted into axis hole 30,30 and pivot props up hole 22, screw in nut 32 in the end of its spiral shell axle 31, the top of engagement member 5 can be rotationally connected with the bracket 18 being fixed on lower frame 4.

Above-mentioned angle columnar part undergauge is configured as corner post shape by the Lower Half of above-mentioned engagement member 5, makes corner post portion 5c on the downside of it can insert leg pillar 6, forms elongated hook draw-in groove 33 at the pars intermedia of its toe lateral side face.In figure, 34 is Screw holes, can screw in Screw (omitting diagram) from the outside of leg pillar 6.

Above-mentioned lock link 35 can be configured in the inner side of lower frame 4 rotationally, steel plate forging and molding is formed as roughly inverted L-shaped shape by this connecting rod 35, its thickness of slab forms the thickness roughly the same with the groove width of above-mentioned slot 24,25 or cam path 26, the engaging protrusion 35a of front end can be sticked in above-mentioned slot 24,25 ground to be formed, and above-mentioned cam path 26 can be contained in slidably.

Through hole (omitting diagram) is formed at the base end part of above-mentioned lock link 35, the beam barrel portion 36 of tubulose is projected in the opening portion of this through hole, tube connector 37 inserts this beam barrel portion 36, turning cylinder 38 inserts this tube connector 37 from the outside of lower frame 4 via through hole 15, this beam barrel portion 36, tube connector 37 and turning cylinder 38 screw are fixed, and they can be connected with dynamic.

In figure, 38a is formed in the wide diameter portion in the outside of turning cylinder 38, and the axle portion 39a screw of action bars 39 is fixed on this wide diameter portion 38a.

At the both ends of above-mentioned tube connector 37, be installed as the snap 40 of torsion spring, one end hook is stuck in the engaging protrusion 35a of lock link 35, its another end hook is stuck in the Screw of fixing lower frame 4, by its elasticity, rotationally tube connector 37, turning cylinder 38 and action bars 39 can be exerted a force to a direction, and, engaging protrusion 35a can be sticked in slot 24,25 ground force.

The enhancing frame 41 be made up of the steel pipe of rectangle is set up, at the both ends of this enhancing frame 41 welding hook clamp 42 between above-mentioned engagement member 5,5.The steel plate bending of rectangle is become cross section roughly zigzag shape and being formed by above-mentioned hook clamp 42, and bottom projects curved tabs 42a, 43 thereon, this curved tabs 43 is placed and strengthens frame 41, welded at their junction surface.

The pars intermedia of the ora terminalis of above-mentioned curved tabs 42a is bent to right angle, forms hook card 44, in one end of this hook card 44, project engagement pawl 45 to side.

Above-mentioned hook card 44 inserts the elongated hole 46 being installed on the leg pillar 6 of corner post portion, the downside 5c of engagement member 5, and, insert the hook draw-in groove 33 of engagement member 5, above-mentioned engagement pawl 45 can be engaged the internally installation departed from hook draw-in groove 33.

That is, the side (downside in embodiment) in above-mentioned hook draw-in groove 33 forms slot 47, projects engagement pawl 48 in the opening edge of this slot 47, this engagement pawl 48 can be engaged depart from above-mentioned engagement pawl 45 base portion arrange.

In figure, 49 is the Screw holes at the both ends being arranged on hook clamp 42,50 are formed in the through hole of end strengthening frame 41,51 is through holes of the pars intermedia being arranged on hook clamp 42, these through holes 50,51 are used as after being welded in by hook clamp 42 and strengthening frame 41, are immersed in the osculum of degreasing detergent remover when degreasing detergent remover carries out drying.In figure, 52 are arranged on the accepting rack immediately below top board 2, and this accepting rack 52 sets up multiple hack lever (canopy Zhan) 53.

In addition, in figure, the 54 plastic lower masks being mounted in the rearward openings portion of lower frame 4, are configured as cross section roughly U-shaped, the projection (omitting diagram) in the face of setting within it are sticked in the groove 55 of lower frame 4, are detachably installed on lower frame 4.56 otch being formed in the rear portion of lower mask 54, above-mentioned enhancing frame 3 can insert this otch 56.57 is the operation posts can placing top board 2.

On the other hand, about above-mentioned leg end 9,10, leg end 9 is formed as roughly straight tube-like, leg end 10 is formed as roughly L-shaped shape, they are formed in fact equally, its upper end is formed as the rectangular tubular of the undergauge that can be embedded in leg pillar 6,8, screws in Screw 90 and connect at the suitable position of its reducing diameter part 9a, 10a.

The pyramid that the bottom of above-mentioned leg end 9,10 is formed as undergauge is downwards trapezoidal, subtend face is within it formed the sliding face 58 of mild concave curved surface shape along above-below direction, this sliding face 58 is separated formation two slots 59,59 along above-below direction.

The angle θ of above-mentioned adjacent slot 59,59 is formed as 1/6 anglec of rotation that is 60 ° of adjuster described later, is rotated, the point of engagement pawl described later can be sticked in above-mentioned slot 59 by 1/6 of above-mentioned adjuster.

In figure, 60 is opening portions of the shaping of being cut above by the pars intermedia of leg end 10, and cap 61 loads and unloads and is freely installed on this opening portion 60.In this case, leg end 9 is roughly straight tube-like, due to its upper end open, therefore there is not above-mentioned opening portion 60.

Screwed hole 62 is formed in the bottom of above-mentioned leg end 9,10, the spiral shell axle 64 of plastic adjuster 63 screws in this screwed hole 62 from below, this adjuster 63 is main composition components of the height adjuster of the desk of top board 2 grade, by the screw-in amount of above-mentioned spiral shell axle 64, the height on leg end 9,10 or top board 2 to ground 11 can be regulated.

Project the locking axle 65 possessing locking surface in the upper end of above-mentioned spiral shell axle 64, baffle ring 66 hook is stuck in this locking axle 65, and Screw 67 screws in the screwed hole 68 of locking axle 65 from the top of this baffle ring 66.

Above-mentioned baffle ring 66 is configured as plastic hexagonal tabular, centre forms the stop hole 69 with locking axle 65 similar shape wherein, outside it, 6 engagement pawls 70 are formed at angularly position, be formed at 60 ° of positions in embodiments, its pivot angle θ is formed as identical with the angle θ of slot 59.

Above-mentioned engagement pawl 70 is formed as roughly inverted L-shaped shape, its outer peripheral face is formed as roughly chevron, grooving 71 is formed between its leading section and the outer peripheral face of medial surface and baffle ring 66, via this grooving 71, engagement pawl 70 to inward-outward direction displacement, can be made engagement pawl 70 engage with slot 59 and depart from.

Namely, baffle ring 66 can rotate and configure slidably on above-mentioned sliding face 58, when the rotation that the operation by above-mentioned adjuster 63 is carried out, the point 70a of the periphery of engagement pawl 70 is sticked in above-mentioned slot 59, the height of leg end 9,10 or top board 2 can be made to rise or decline.

Thus, if such as make adjuster 63 rotate once, then baffle ring 66 and its synchronous axial system, the height of leg end 9,10 or top board 2 moves up and down 1 pitch amount of the spiral shell axle 64 of adjuster 63, if make adjuster 63 rotate 1/6, namely rotate 60 °, then the point 70a of engagement pawl 70 is sticked in adjacent slot 59, make the height of leg end 9,10 or top board 2 move up and down 1/6 pitch amount of the spiral shell axle 64 of adjuster 63, the rotational angle of its clamped position can be kept.

Form screwed hole 72 in the inside of above-mentioned spiral shell axle 64, this screwed hole 72, being based in the lower aperture of operation panel 73 of bottom of adjuster 63, forms shrinkage pool 74 in this opening portion.

The construction bolt 75 being based in the top of castor 13 screws in and is anchored on above-mentioned screwed hole 72, and adjuster 63 and construction bolt 75 can one and with forming dynamicly.

Flange 76 is set at the base portion of above-mentioned construction bolt 75, this flange 76 engagingly can be contained in above-mentioned shrinkage pool 74, while adjuster 63 being supported on this flange 76, castor 13 is rotatably installed.

In figure, 75a is the head of construction bolt 75, and the 77 tongue-shaped hooking sheets being formed in the inside circumference of the reducing diameter part 10a of leg end 10, form grooving 78 around it, by its elasticity, makes hooking sheet 77 can to the displacement of thickness of slab direction.

In the leading section of above-mentioned hooking sheet 77, engaging protrusion 79 projects toward the outer side, this engaging protrusion 79 engagingly can be arranged with the stop hole 80 of the inside circumference being formed in leg pillar 8, easily leg end 10 can be connected to leg pillar 8.In this case, corresponding with leg pillar 6 leg end 9 also adopts same formation.

In addition, in figure, 81, the 81 Screw holes being formed in the upper end side face of leg pillar 6, are formed as the pitch identical with the Screw hole 34 being formed at engagement member 5 by its pitch.

In the folding table formed like this, as main component parts, possesses the height adjuster of engagement member 5, leg pillar 6 and 8, bracket 18, lock link 35, enhancing frame 41, hook clamp 42, top board 2.

Above-mentioned height adjuster possess the leg end 9 and 10 of the bottom that can be connected to leg pillar 6,8, the adjuster 63 that can be arranged on the lower end of leg end 9,10 up or down, the rotation displacement stoping this adjuster 63 or the baffle ring 66 moved up and down, can the castor 12,13 as earthing component of support adapter 63.

Wherein, top is configured as the corner post shape of abnormity by engagement member 5 by aluminium diecasting, Lower Half is configured as the corner post shape of undergauge slightly, end forms smooth locking surface 5a thereon, forms even surface 5b in its toe lateral.

And, form the first slot 24 of chevron at the pars intermedia of above-mentioned locking surface 5a, form jagged second slot 25 at the pars intermedia of above-mentioned even surface 5b, between this slot 24,25, form the cam path 26 with this slot 24,25 same widths.

Be separated at the rear portion side side face of above-mentioned engagement member 5 and project a pair beam barrel portion 27,27, form axis hole 30,30 thereon, meanwhile, the pivot forming shrinkage pool shape between beam barrel portion 27,27 props up groove 28, and the upper side opening edge propping up groove 28 at this pivot forms smooth locking surface 29.

In addition, elongated hook draw-in groove 33 is formed at the pars intermedia of the toe lateral side face of engagement member 5, side in this hook draw-in groove 33, be downside in the present embodiment, form slot 47, project engagement pawl 48 in the opening edge of this slot 47, meanwhile, form a pair Screw hole 34 at the lower lateral circle surface of engagement member 5.

The steel pipe cutting of cornue shape is become preliminary dimension by above-mentioned leg pillar 6,8, wherein, the leg pillar 6 of front side is formed as linearity, the inside circumference of end forms elongated hole 46 thereon, form Screw hole 81,81 at the adjacent side face of this elongated hole 46, meanwhile, the leg pillar 8 of rear side is formed as roughly L-shaped shape, be welded to connect fixture 7 in the upper end of these leg pillars 6,8, their one are connected.

Above-mentioned leg end 9,10 ester moulding is the cornue shape of the bottom that can be installed on leg pillar 6,8, relative inner face at an upper portion thereof forms multiple slot 59 along above-below direction, forms the screwed hole 62 that can screw in the spiral shell axle 64 of adjuster 63 in bottom.

Wherein, form opening portion 60 at the top side face of the leg end 10 bending to roughly L-shaped, block at this opening portion 60 mounting cap 61, on the other hand, roughly the leg end 9 of straight tube-like is by upper opening, to be shaped multiple slot 59 along above-below direction at its relative inner face.

And, leg end 9,10 screw is fixed on the bottom of leg pillar 6,8, the spiral shell axle 64 of adjuster 63 is screwed in this leg end 9,10, baffle ring 66 is arranged on the upper end of this spiral shell axle 64, the construction bolt 75 with castor 12,13 one is screwed in the screwed hole 62 of above-mentioned spiral shell axle 64 and fastening.

Above-mentioned bracket 18 is formed as the roughly tabular of heavy wall by synthetic resin, end forms the substrate 19 of roughly H-shaped shape thereon, the engaging protrusion 20 in band gap is projected outside the mediad of this substrate 19, the pivot branch 18a of roughly arc-shaped is formed in the bottom of bracket 18, form pivot in the central authorities of this pivot branch 18a and prop up hole 22, meanwhile, smooth snap-latch surface 23 is formed at the side end of arc-shaped side face.

Steel plate forging and molding is formed as roughly inverted L-shaped shape by above-mentioned lock link 35, its thickness of slab is formed as the thickness roughly the same with the groove width of above-mentioned slot 24,25 or cam path 26, engaging protrusion 35a is formed in its front end, this engaging protrusion 35a engagingly can be formed with slot 24,25, meanwhile, can be formed slidably at above-mentioned cam path 26.

The steel pipe cutting of rectangle is become preliminary dimension by above-mentioned enhancing frame 41, forms through hole 50 in its end.

In addition, the steel plate bending of rectangle is become cross section roughly Z-shaped and being formed by above-mentioned hook clamp 42, and bottom projects curved tabs 42a, 43 thereon, the pars intermedia of the ora terminalis of a curved tabs 42a is bent to right angle, form hook card 44, project engagement pawl 45 in one end of this hook card 44 to side.

Form Screw hole 49 at the both ends of above-mentioned hook card 44, in addition, after the inner side at the junction surface strengthening frame 41 forms multiple through hole 51, another curved tabs 43 is placed the end strengthening frame 41, their junction surface is welded, their one are connected.

After above-mentioned welding, the assembly strengthening frame 41 and hook clamp 42 is immersed in degreasing detergent remover, after degreasing is cleaned, this degreasing detergent remover is discharged from through hole 50,51, carry out dewatering and drying, for subsequent use in the application strengthening frame 41 and hook clamp 42.

Above-mentioned adjuster 63, by spiral shell axle 64 and operation panel 73 ester moulding, forms screwed hole 72 in the inside of spiral shell axle 64, below operation panel 73, form recess 74, projects locking axle 65, form screwed hole 68 therein in the upper end of spiral shell axle 64.

Above-mentioned baffle ring 66 ester moulding is hexagonal tabular, at its peripheral part, 6 of inverted L-shaped shape engagement pawls 70 is formed in angularly position, the peripheral part of each engagement pawl 70 is formed as roughly chevron shape, meanwhile, its point 70a is engaged with slot 59.

And the whole inner side from the base portion of each engagement pawl 70 to leading section forms grooving 71, make engagement pawl 70 can to inward-outward direction displacement.

Above-mentioned castor 12,13 possesses the construction bolt 75 that can screw in above-mentioned screwed hole 62, and castor 12,13 is rotatably formed in this construction bolt 75, in the present embodiment, uses known parts wherein.

Like this, because above-mentioned leg pillar 6,8 is the simple formations forming stop hole 80,80 in the bottom of rectangular tube, leg end 9,10 ester moulding is roughly L-shaped pipe and straight tube-like, inner face relative at an upper portion thereof, along the separating shaped concavity curved surface 58 of above-below direction and two slots 59,59, as long as owing to forming screwed hole 62 in its underpart, therefore do not need the slot machining of welding as prior art or screw division or screwed hole and complexity or shape to process, can easily and at an easy rate make.

In addition, above-mentioned adjuster 63 is for possessing spiral shell axle 64 and operation panel 73, forming the screwed hole 72 that can screw in construction bolt 75, the simple formation forming locking axle 65 and screwed hole 68 in the upper end of spiral shell axle 64 in the inside of spiral shell axle 64, do not need as prior art, be arranged on the locking member of the complexity of the bottom of castor and leg and component parts thereof or braking parts can be based in the shaping of the complexity of operation panel 73 in shifting ground, can easily and at an easy rate make.

Secondly, when using above-mentioned component parts assembling folding table, a pair lower frame 4,4 screw is fixed on the both ends below top board 2.

In the present embodiment, nut (not shown) is buried underground in the precalculated position of the inside of top board 2, the Screw hole 16 of lower frame 4,4 is positioned its intercommunicating pore, in this Screw hole 16, inserts Screw or bolt and screw in nut, thus lower frame 4,4 is fixed on top board 2.

Then, keep bracket 18, make its substrate 19 from the inner side of 4b above the inner side of lower frame 4 is positioned, the engaging protrusion 20 in outside is pressed into connecting hole 17, bracket 18 is installed on the inner side of lower frame 4.

Then, keep engagement member 5, the pivot branch 18a of bracket 18 is inserted between its beam barrel portion 27,27, while this state of maintenance, from the side of lower frame 4, pivot 21 is inserted axis hole 14, insert it into the through hole 30,30 in beam barrel portion 27,27, by protruding outside from axis hole 14 to lower frame 4 of its spiral shell axle, nut 32 is screwed in its spiral shell shaft end, engagement member 5 can be rotationally connected with bracket 18.

On the other hand, tube connector 37 is inserted the through hole 15,15 of lower frame 4,4, the beam barrel portion 36 of snap 40 and lock link 35 is installed in the end of the tube connector 37 in this lower frame 4,4, one end hook of this snap 40 is stuck in lock link 35, another end hook is stuck in the Screw of fixing lower frame 4, and, give elasticity to snap 40, lock link 35 can be exerted a force rotationally, engagement pawl projection 35a is engaged with the first or second slot 24,25 of engagement member 5.

And, Screw is inserted the Screw hole in the beam barrel portion 36 of above-mentioned lock link 35, this Screw is screwed in the end of tube connector 37 and each Screw hole of turning cylinder 38, by they integratedly screw fix and can connect with dynamic.

The wide diameter portion 38a of the end of above-mentioned turning cylinder 38 is positioned the outside of lower frame 4, the axle portion 39a of action bars 39 is inserted this wide diameter portion 38a, their screws are fixed.

Like this, below top board 2, lower frame 4 is installed, the beam barrel portion 36 of the upper end of engagement member 5, the base portion of bracket 18 and lock link 35 is installed in the inner side of this lower frame 4, after action bars 39 is installed in the outside of lower frame 4, mask 54 under the rear portion of lower frame 4 is installed, the rear portion of lower mask 54 and lock link 35 are covered behind the inside of this cover 54, packing that these top plate member are cased together.

At this moment, fold joint component 5, inserts its elongated hole 33 by the hook clamp 42 being fixed on the end strengthening frame 41, moves this enhancing frame 41, engagement pawl 45 engaged with slot 47 and engagement pawl 48, be temporarily fixed on engagement member 5 along elongated hole 33.

On the other hand, in the bottom of front and back pair of leg bilge cod 6,8, leg end 9,10 is installed, this leg end 9,10 is installed adjuster 63,63 and castor 12,13, in the inside of leg end 9,10, baffle ring 66 is installed, after the upper end mounting cap 8a of leg pillar 8, packing of being cased together in one group, the left and right of this leg assembly.

And, after each assembly of the above-mentioned packing of carrying, when carrying destination and using said modules assembling folding table, first, by top plate member with top board 2 for downside is placed on operation post 37, move above-mentioned temporary fixed hook clamp 42 along elongated hole 33, the engaging of engagement release pawl 45 and slot 47 and engagement pawl 48, pulls out from hook draw-in groove 33.

Then, with pivot 21 for fulcrum, engagement member 5 is erected slightly, in this condition, in one group of leg pillar 6,8 of leg assembly, the leg pillar 6 of the front side of linearity is inserted engagement member 5, make elongated hole 46 and hook draw-in groove 33 contraposition.This situation as shown in figure 11.

And, after the above-mentioned leg pillar 6 of insertion, engagement member 5 is returned to the level of original state, keep above-mentioned enhancing frame 41, the hook clamp 42 at its both ends is inserted elongated hole 46, and, insert after in hook draw-in groove 33, along elongated hole 46 movable hook clamp 42, engagement pawl 45 is sticked in slot 47 and engagement pawl 48, they are temporarily fixed, the medial surface of hook clamp 42 close to leg pillar 6 is configured.This series of situation is as shown in Figure 12 to Figure 14.

Thus, before screw described later is fixing, easily obtains the temporary transient of the desk formed by leg pillar 6,8 and erect state.

So, make the Screw hole 49,49 of hook clamp 42 and Screw hole 60,60 contraposition of leg pillar 6, Screw is inserted in them, and, this Screw is screwed in the Screw hole 34,34 of engagement member 5, enhancing frame 41 is connected to leg pillar 6,8 or engagement member 5.This situation as shown in figure 15.

If assemble top plate member and leg assembly like this, then terminate a series of assembling operation.This assembled condition as shown in Figure 1 to Figure 3.

Namely, leg pillar 6,8 is inside and outside the both sides of folding table are positioned at, the front of the lower direction folding table of the leg pillar 6 of inner side extends, the rear of the lower direction folding table of the leg pillar 8 in outside extends, in the lower end of this leg pillar 6,8, castor 12,13 is installed, between the upper end of this leg pillar 6,6, erection strengthens frame 41, in addition, and mask 54 under the rear portion of lower frame 4,4 is installed.

And, the upper end of engagement member 5 is connected to the inner side of lower frame 4, configure the lock link 35 of tabular along engagement member 5 in the upper end of this engagement member 5, form the first and second slot 24,25 in the centre position of the outer peripheral face of attaching parts 5, the engaging protrusion 35a of lock link 35 engagingly can be configured at these slots 24,25.

Thus, at the outside configuration locking connecting rod of lower frame, this lock link projects engagement pin to side, simultaneously, in the upper end of pillar, cam disc is set, this cam disc forms two slots along thickness of slab direction, with above-mentioned engagement pin is sticked in this slot existing top board locking device compared with, what do not need lock link or engagement pin occupies space, the peripheral space of lower frame 4 correspondingly becomes compact, meanwhile, realize slimming or the miniaturization of engagement member 5, realize the miniaturization of this folding table.

On the other hand, when using the height adjuster of member of formation assembling top board of above-mentioned making, first, adjuster 63 is installed on leg end 9,10.

In this case, prepare adjuster 63 and leg end 9,10, the spiral shell axle 64 of adjuster 63 is screwed in the screwed hole 62 of leg end 9,10, make the upper end of spiral shell axle 64 outstanding to the inside of leg end 9,10.

In embodiments, by above-mentioned for whole screw-ins of spiral shell axle 64 screwed hole 62, its upper end is positioned extreme higher position, carries out the installation of baffle ring 66 easily.

Then, be fitted together to the stop hole 69 of baffle ring 66 at the locking axle 65 of the upper end of spiral shell axle 64, Screw 67 screwed in from the top of this baffle ring 66 screwed hole 68 engaging axle 65, it is fastening, baffle ring 66 is fixed on the upper end of spiral shell axle 64.

This situation is as shown in Figure 19 to Figure 22, and the point 70a of the engagement pawl 70 of baffle ring 66 is sticked in slot 59, or can engagingly be positioned at slot 59.

Then, the construction bolt 75 of castor 13 is screwed in the screwed hole 62 of spiral shell axle 64 inside of adjuster 63, be firmly fastened to, make castor 13 be connected to adjuster 63 integratedly.

This situation as shown in figure 22, screws in the construction bolt 75 of castor 13 in the whole region of screwed hole 62, flange 76 engaging of the base portion of above-mentioned bolt 75 is installed on recess 74.

Like this, assembling adjuster 63, leg end 9,10 and castor 13, these assemblies are for subsequent use in the assembling of leg pillar 6,8.

When using the assembling components meeting desk 1 of such castor 13, as long as said modules to be installed on the leg pillar 6,8 of meeting desk 1.

Namely, reducing diameter part 9a, 10a of the leg end 9,10 of said modules are inserted the bottom of leg pillar 6,8, by the elastic displacement produced by the resilience of hooking sheet 77, engaging protrusion 79 is sticked in the stop hole 80 of the bottom of leg pillar 6,8, after they are temporarily fixed, Screw 90 screwed in the screwed hole at their junction surface and connect.

After above-mentioned connection, if installed in cap 61 insertion opening portion 60, then easily and promptly carry out a series of assembling.As shown in figure 22, the meeting desk 1 after assembling as shown in Figure 1 to Figure 3 for situation after assembling.

When the use of above-mentioned folding table, as shown in Fig. 1 to Fig. 3 and Figure 10, top board 2 is flatly supported, the smooth locking surface 5a of the upper end of engagement member 5 is sticked in above lower frame 4, the engaging protrusion 35a of lock link 35 is sticked in the second slot 25 of engagement member 5, with the engagement member 5 of the second slot 25 opposition side near position, the substrate 19 of bracket 18 can engagingly configure.Thus, reliably and strongly maintain the flat-hand position of top board 2, form the using state of safety.

In this case, substrate 19 due to bracket 18 configures with can being sticked in curved tabs 4a, the 4a of lower frame 4, therefore stop the rotation of substrate 19, reliably and while the flat-hand position strongly maintaining top board 2, adhere to that the pivot of the engagement member 5 utilizing pivot 21 to carry out props up state.

In addition, lock link 35 can be biased to the clockwise direction on Figure 10 rotationally by the elasticity of snap 40, while the engaging maintaining engaging protrusion 35a and the second slot 25, action bars 39 can be biased to the direction identical with lock link 35 rotationally by the elasticity of snap 40.

Fold from the using state of such top board 2 top board 2 use after keeping state under, hold action bars 39, the elasticity of opposing snap 40, upwards rotating operation bar 39 centered by turning cylinder 38.

So the action synchronous axial system of lock link 35 and action bars 39, its engaging protrusion 35a is pulled out from the second slot 25, removes the engaging of the second slot 25 and engaging protrusion 35a.This situation as shown in figure 16.

So, if maintain aforesaid operations bar 39 hold state, boost the rear portion of top board 2, then top board 2 is centered by pivot 21, rotates to the counter clockwise direction on Figure 16.

At this moment, lock link 35, also centered by pivot 21, rotates to the counter clockwise direction on Figure 10, after leaving movement, snaps in cam path 26 from the upper end of even surface 5b from even surface 5b.This situation as shown in figure 17.

Then, if boost top board 2 further, then the engaging protrusion 35a of lock link 35 slides along the bottom surface of cam path 26, moves to the first slot 24.

Thus, if decontrol action bars 39, then action bars 39 is by the elasticity of snap 40, rotates downwards, return to original position centered by turning cylinder 38.

And link with the recovery action of action bars 39, lock link 35 and action bars 39 synchronous axial system, engaging protrusion 35a engages with the first slot 24, and crimping slot 24, stops the rotation of top board 2.

Thus top board 2 is folded into parallel with the upper end of leg pillar 6 or leg pillar 8 skewed.This situation as shown in figure 18.

When such top board 2 folding, in side, the engaging protrusion 35a of lock link 35 engages with the first slot 24, at opposite side, the smooth locking surface 29 that the pivot that engagement member 5 is formed props up groove 28 is sticked in the smooth snap-latch surface 23 formed on the pivot branch 18a of bracket 18, stop the clockwise direction of top board 2 and anticlockwise rotation, reliable and be formed uniformly the folding angles of top board 2.

In addition, when top board 2 folding, the locking surface 5a of engagement member 5, bracket 18 and the first slot 24 are covered by lower frame 4 or lower mask 54, and the second slot 25 is covered by lower mask 54, therefore avoid finger to insert wherein nipped situation, the security on using can be guaranteed.

On the other hand, when launching top board 2 from the folded state of such top board 2 and using, hold action bars 39, the elasticity of opposing snap 40, pulls to top board 2 side by this action bars 39.

So lock link 35 and action bars 39 are with dynamic, and its engaging protrusion 35a is pulled out from the first slot 24, the engaging of engagement release projection 35a and the first slot 24.

Thus, if maintain the above-mentioned of action bars 39 to hold state, left behind at the rear portion of top board 2, then top board 2 is centered by pivot 21, rotates to the clockwise direction on Figure 18.

At this moment, lock link 35, centered by pivot 21, leaves from cam path 26 and even surface 5b, rotates to the clockwise direction on Figure 18.

Then, if left behind further by top board 2, then the engaging protrusion 35a of lock link 35 is close to the opening portion of the second slot 25.

Thus, if decontrol action bars 39, then action bars 39 is by the elasticity of snap 40, leaves rotation from top board 2, namely centered by pivot 38, rotates, return to original position to the clockwise direction on Figure 17.

And link with the recovery action of aforesaid operations bar 39, lock link 35 and action bars 39 synchronous axial system, its engaging protrusion 35a engages with the second slot 25, stops the rotation of 2 of top board.Thus top board 2 flatly launches and is supported by the upper end of leg pillar 6 and leg pillar 8.

This state as shown in Figure 10, the smooth locking surface 5a of the upper end of engagement member 5 is sticked in above lower frame 4, the engaging protrusion 35a of lock link 35 is sticked in the second slot 25 of engagement member 5, with the engagement member 5 of the second slot 25 opposition side near position, the substrate 19 of bracket 18 can engagingly configure.Thus, reliably and strongly maintain the flat-hand position of top board 2, guarantee the using state of safety thereafter.

The meeting desk 1 of such assembling is supported by the leg pillar 6,8 of left and right, and the load of each leg pillar 6,8 is supported by adjuster 63 or castor 13.

At this moment, the construction bolt 75 of castor 13 screws in the screwed hole 72 of the spiral shell axle 64 of adjuster 63, and support outside, above-mentioned spiral shell axle 64 screws in the Screw hole 62 of leg end 9,10, supports outside, the outside of dual support construction bolt 75.

Thus, the support strength of strengthening construction bolt 75, the distortion that load when can prevent the use by meeting desk 1 produces or lose.

And, be sticked in sliding face 8 or slot 59 due to the upper end of construction bolt 75 via baffle ring 66 and supported, because this enhancing the support strength of construction bolt 75, strongly preventing the distortion that produced by above-mentioned load or losing.

After the assembling of above-mentioned meeting desk 1, adjuster 63 screws in the rear portion of leg end 9,10, the upper-end part of driving of spiral shell axle 64 is in extreme higher position, operation panel 73 is positioned at extreme lower position, flange 76 is sticked in its recess 74, support adapter 63, is set in extreme lower position by leg end 9,10 apart from the height h on ground 11, and top board 2 is set in extreme lower position apart from the height on ground 11.This situation as shown in figure 22.

When from the height of such situation adjustment height of leg end 9,10 or top board 2, keep the operation panel 73 of adjuster 63, it is such as rotated counterclockwise.

So, the lower dynamic displacement of spiral shell axle 64 is retrained by the castor 13 contacted with ground 11, on the other hand, the Screw hole 62 screwed togather with above-mentioned spiral shell axle 64 relatively moves up along spiral shell axle 64, leg end 9,10 leaves from operation panel 73, be moved upward, by leg end 9,10 or top board 2 apart from the Height Adjustment on ground 11 to high-order.

Like this, leg end 9,10 moves up, and the bottom surface of opening portion 60 abuts baffle ring 66, the stopping that moving up of leg end 9,10, and leg end 9,10 or top board 2 are set as extreme higher position apart from the height H (H > h) on ground 11.This situation as shown in figure 23.

Thus, by adjusting the amount of spin of operation panel 35, the position desired by leg end 9,10 or top board 2 can being become apart from the Height Adjustment on ground 11.

Like this, the Height Adjustment of the top board of above-mentioned embodiment by operation panel 73 is carried out rotating operation to suitable direction, easily and smoothly can be carried out.

At this moment, baffle ring 66 is same dynamic with the rotation of operation panel 73, the point 70a of engagement pawl 70 is sticked in sliding face 58, although carried out the rotatory force of brake operating plate 73 by its contact friction force or interface pressure, but its brake force reduces due to outer displacement in the elasticity of baffle ring 66 and the engagement pawl 70 of grooving 71 generation, easily and smoothly can carry out above-mentioned rotating operation.

Thus, depress the locking member of tubular with opposing spring and remove projection compared with the existing situation of carrying out after the engaging of groove rotating, not needing wrist power, can easily and effectively adjust.

In addition, the height adjuster of above-mentioned embodiment after the adjustment, the point 70a of the engagement pawl 70 of baffle ring 66 is sticked in the slot 59 in sliding face 58, and, by its elasticity-intensified above-mentioned engaging, therefore the rotation of anti-baffle ring 66, prevents the change of height adjustment locations, can desired by long term maintenance adjustment height.

Figure 25 to Figure 27 illustrates other embodiment of applicable meeting desk of the present invention 1, and the component part corresponding with above-mentioned embodiment uses identical symbol.

Wherein, Figure 25 illustrates the second embodiment of the present invention, in this embodiment, installs the plastic curtain plate 81 of non-transparency, stop the perspective from toe lateral in the toe lateral of meeting desk 1.

In addition, formation and the effect thereof of the lower frame 4 in this embodiment, engagement member 5, leg pillar 6 and 8, leg end 9 and 10, castor 13, bracket 18, lock link 35, lower mask 54, baffle ring 66 are identical with above-mentioned embodiment.

Figure 26 and Figure 27 illustrates the second embodiment of the present invention, the height of the upper end of leg pillar 6,8 is formed in slightly lower position by this embodiment, space on the upper end of the leg pillar 6,8 immediately below top board 2 is expanded slightly, simultaneously, the jockey 7 in U-shaped cross section is welded, at the plastic hook bolt 82 of the outer side covers of this jockey 7 between the upper end of leg pillar 6,8.

Above-mentioned hook bolt 82 is configured as roughly corner post shape, and its upper end is configured as mild convex curved surface, establishes the hook 84 of roughly circular plate type, the medial surface of this hook 84 is formed as taper at one pleurapophysis.

Immediately below above-mentioned hook 84, project the leg 85 of short and small corner post shape downwards, by this chimeric upper end being installed on the leg pillar 8 in outside of leg 85.

In figure, 86 is the wider gaps of left and right sides opening at hook bolt 82, accommodates above-mentioned jockey 7, make it possible to this jockey 7 hidden between this gap 86.87 is painted decorative panels having the plastic circle of desired color, projects multiple pin (omitting diagram) at its back side, and this pin can be embedded in the shrinkage pool (omitting diagram) on the surface being arranged on hook 84.

In addition, in figure, 88 is the handbag such as bag, sack classes, its mobile division 89 can be hooked in above-mentioned hook 84.

In the side of the upper end of above-mentioned hook bolt 82, ester moulding hook 84 and leg 85 integratedly, install through painted decorative panel 87 on the surface of above-mentioned hook 84, in addition, by chimeric with jockey 7 for above-mentioned gap 86, the front-back of the hook bolt 82 dividing gap 86 is covered in the front-back of jockey 7, and this jockey 7 hidden, in addition, by chimeric for leg 86 upper end being installed on leg pillar 8.Thus leg 86 is also used as the cap of leg pillar 8.

Like this, if install hook bolt 82, then hidden jockey 7, convex curved surface is shown in the upper end of this hook bolt 82, in its side, the cap (omitting diagram) being arranged on the upper end of leg pillar 6 is outstanding, at its opposite side, the hook 84 be arranged on via leg 86 on the upper end of leg pillar 8 is given prominence to, and they form the hook space of wider concavity.

In addition, hook 84 is set immediately below the both ends of top board 2, this hook 84 is installed the decorative panel 87 through decoration, improve the attractive in appearance of the side of meeting desk 1, meanwhile, made by decorative panel 87 position of hook 84 obvious, promote that the hook of handbag class 88 uses.

Because the upper end of leg pillar 6,8 is configured in slightly lower position, in addition, the inner side of hook 84 forms taper, above-mentioned suspension space is widened, therefore easily and safely hook mobile division 89, and above-mentioned hook card division forms mild convex curved surface, therefore due to friction or can not to nuzzle up and disrumpent feelings in the mobile division 89 in this convex curved surface, by hook safely.

In addition, engagement member 5 and leg pillar 6 arrange by each of above-mentioned embodiment respectively, but also they one can be formed, and like this, can reduce number of components, alleviate the trouble of assembling.

Utilizability in industry

Like this, folding table of the present invention realizes miniaturization and the strengthening support strength of the locking device of top board, while the reliable and stable using state obtaining top board and folded state, when preventing top board from folding, finger sandwiches, guarantee the security on using, and realize easily assembling, on the other hand, possesses the height adjuster of desk etc., its strengthening is arranged on such as desk, chair, the support strength of the construction bolt of the castor of the leg bottoms such as furniture, while losing preventing it or being out of shape, easily and reliably can adjust leg or the top board height to ground, its adjustment height can be kept for a long time.

Claims (18)

1. a folding table, possesses: multiple lower frame, is arranged on below top board, engagement member, can rotate the earth's axis and support by this lower frame, leg pillar, supports this engagement member, multiple slot, is formed in the side face of described engagement member, lock link, an end can be supported by described lower frame rotationally, and arranges in the other end and can engage with described slot the holding section departed from, action bars, can with this lock link with dynamic, the lower frame that the earth's axis is supported in the opposition side of described lock link can be rotated in the top of described engagement member, the circumference of described engagement member is configured the rotary area of the holding section of lock link, multiple slots that can engage with described holding section are formed at the side face of this engagement member, when the use of top board, described holding section can be sticked in a slot, when top board folding, described holding section can be sticked in another slot, the feature of described folding table is, described engagement member is formed corner post shape, smooth locking surface is formed at the upper end side face of this engagement member, this locking surface engagingly can be configured at above lower frame when the use of top board, simultaneously, the top side face of the engagement member in the opposition side of described lock link forms pivot and props up groove, by the base portion of bracket can when the use of top board and the upper end of engagement member be engagingly configured at the lower frame of the opposition side of described lock link, groove can be propped up with described pivot in the pivot branch of this bracket engagingly configure.

2. folding table according to claim 1, it is characterized in that, described lock link is formed the tabular of heavy wall, by be formed as the length of described engagement member between the pivot branch of this lock link and holding section half below, the pivot branch of described lock link can be supported rotationally on thickness of slab direction relative to lower frame, described folding table can configure rotationally centered by described pivot branch on the direction vertical with thickness of slab direction.

3. folding table according to claim 1, it is characterized in that, the opening portion of propping up groove at described pivot forms smooth holding section, simultaneously, form smooth fastener in the pivot branch of described bracket, this holding section and fastener engagingly can be configured when top board folding.

4. folding table according to claim 1, is characterized in that, configures with the base portion of described bracket can being sticked in the upper end of the axle support-side of engagement member.

5. folding table according to claim 1, is characterized in that, the base portion of described bracket is formed as roughly H word shape, is configured with can being sticked in the inner face of the curved tabs of lower frame its each a pair leading section.

6. folding table according to claim 1, is characterized in that, described bracket is made up of synthetic resin or die casting or iron and steel.

7. folding table according to claim 1, is characterized in that, described engagement member is made up of die casting.

8. folding table according to claim 2, is characterized in that, the thickness of slab of described lock link is formed the same widths that can engage with the slot of engagement member.

9. folding table according to claim 1, it is characterized in that, hook draw-in groove is formed at the bottom side face of described engagement member, the elongated hole with described hook draw-in groove similar shape is formed at the side face of the leg pillar of the tubulose that the bottom side face of described engagement member can be fitted together to, on the other hand, the hook clamp being formed with hook card is installed on the both ends of connection box, described engagement member is embedded in leg pillar, described hook card is embedded in described hook draw-in groove and elongated hole, this connection box is detachably installed between the leg pillar of left and right.

10. folding table according to claim 1, it is characterized in that, screwed hole is formed in the bottom of described leg pillar, the adjuster of the tubulose being provided with operation panel is screwed together in this screwed hole, construction bolt with castor one is screwed together in the screwed hole in this adjuster, by the rotation of described adjuster, the height of leg pillar for construction bolt can be adjusted.

11. folding tables according to claim 10, it is characterized in that, at described leg pillar, detachably leg end is set, screwed hole is formed in the inner side of this leg end, the spiral shell axle that can screw togather with this screwed hole is arranged at adjuster, the screwed hole that can screw togather construction bolt is set in the inside of this spiral shell axle, by the rotation of described adjuster, the height of leg pillar for construction bolt can be adjusted.

12. folding tables according to claim 11, it is characterized in that, multiple slot is set at the relative inner face of described leg end, simultaneously, be fixedly installed the baffle ring of multiple engagement pawl in the upper end of the spiral shell axle of adjuster, described engagement pawl engagingly can be arranged with described slot.

13. folding tables according to claim 11, is characterized in that, arrange two slots at the relative inner face of described leg end, the angle of these two slots are formed as identical with the pivot angle of two adjacent engagement pawl.

14. folding tables according to claim 11, is characterized in that, the moving direction along the spiral shell axle of described adjuster forms described slot.

15. folding tables according to claim 12, is characterized in that, described engagement pawl can be formed to inward-outward direction elastic displacement.

16. folding tables according to claim 12, it is characterized in that, described baffle ring forms hexagonal tabular, multiple engagement pawls of inverted L-shaped shape are formed in the angularly position of its periphery, form the point that can engage with described slot at the peripheral part of this engagement pawl, meanwhile, form grooving in the inner side of this engagement pawl, via this grooving, enable engagement pawl to inward-outward direction elastic displacement.

17. folding tables according to claim 12, is characterized in that, described leg end, baffle ring and adjuster are synthetic resin system.

18. folding tables according to claim 11, is characterized in that, described leg end and leg pillar one are formed.