CN104545072A

CN104545072A - folding chair

Info

Publication number: CN104545072A
Application number: CN201410375192.4A
Authority: CN
Inventors: 鲍志廷
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-23
Filing date: 2014-08-01
Publication date: 2015-04-29
Anticipated expiration: 2034-08-01
Also published as: EP2865290A1; JP5869647B2; EP2865290B1; CN104545072B; TW201515605A; TWI483694B; JP2015080724A

Abstract

A folding chair comprises a supporting unit, a folding unit and a chair surface unit, wherein the supporting unit comprises an installation rod, the folding unit comprises a positioning seat sleeved on the installation rod, an upper sliding seat, a folding rod pivoted on the positioning seat and a linkage rod pivoted on the folding rod and the upper sliding seat, the chair surface unit comprises a main chair surface, two side chair surfaces and two rails, the rails are provided with an unfolding end point and a folding end point, the folding unit and the chair surface unit can be changed between an unfolding position and a folding position relative to the supporting unit, the linkage rod and the folding rod are respectively far away from the installation rod and are intersected at an angle when the folding rod is in the unfolding position, the folding rod and the linkage rod are mutually folded close to the installation rod when the folding rod is in the folding position, and the folding rod is located at the end point. The folding unit of the folding chair has simple rod structure and low manufacturing cost, and the folding rods are integrally formed instead of being pivoted in a multi-section way, so that the structural strength can be enhanced.

Description

Foldable chair

Technical field

The present invention relates to a kind of chair, particularly relate to a kind of Foldable chair be installed on rod member.

Background technology

Generally be installed on the movable Foldable chair on rod member, mostly be applied to crutch or multifunction umbrella, use as additional purpose, its objective is and user will be allowed can to have a rest on the way to regain one's strength depending on health in the process of walking, therefore, this type of Foldable chair must take into account Quick folding and the characteristic be convenient for carrying.

Such as US2,380,437 and US3,999, Foldable chair disclosed by 565 Patent Cases such as grade, all has a support bar and can fold the combined support and a seat support drawn close in this support bar respectively, but, this kind of folding design is when collapse state, the structure of this foot rest and this seat support exposes, and forms multiple gap because of its shaft-like folding structure, not only visually very not unsightly, also easily jam a finger because of not noting in use procedure, also there is the doubt that safety in utilization is not good.

And the Foldable chair such as disclosed by TW102112330, although the disappearance of above-mentioned patent can be overcome, complicated and increase manufacturing cost owing to folding cellular construction, and articulated section is more each other to fold the rod member of unit, also reduces structural strength.

Summary of the invention

The object of the present invention is to provide a kind of can reducing costs and the Foldable chair of stabilized structure.

A kind of Foldable chair of the present invention, comprise a support unit, one folds unit, and a seat unit, this support unit comprises a mounting rod, this folds unit and comprises the positioning seat that is sheathed on this mounting rod, one slip cap is located at this mounting rod and is positioned at the upper saddle above this positioning seat, one bottom is connected to the folded rod of this positioning seat, and one opposite end be connected to the trace of described folded rod and this upper saddle, this seat unit comprises a main seat, two with the side seat of this main seat pivot joint, and two are positioned at track bottom the seat of described side, this main seat has the inner end that is articulated in this upper saddle, one in contrast to the outer end of this inner end, and two to be positioned between this inner end with this outer end and in contrary side edge part, the wherein side edge of described side seat is articulated in described side edge part respectively, and described track is used for arranging for the slippage of described folded rod top, this track has this outer end of vicinity and away from the expansion end points of this main seat, and this inner end of vicinity and near the folding end points of this main seat, wherein, this folds unit and this seat unit can convert between an expanded position and a collapsed position relative to this support unit, when this expanded position, this main seat and described side seat are co-located at angularly crossingly with this mounting rod takes face, this upper saddle is near this positioning seat, described folded rod top is positioned at the expansion end points of described track, the outer end of described folded rod top and this main seat is away from this mounting rod, when this collapsed position, this seat unit is U-shaped and coated this folds unit, this upper saddle is away from this positioning seat, described folded rod, described trace mutually draws in and is close to this mounting rod, described folded rod top is positioned at the folding end points of described track, and with the outer end of this main seat near this mounting rod.

Foldable chair of the present invention, this support unit also comprises one and is fixed on upper limit part on this mounting rod, and one is fixed on lower limit part on this mounting rod, when this expanded position, this upper saddle is butted on this upper limit part and no longer moves down, and this positioning seat is butted on this lower limit part and no longer moves down.

Foldable chair of the present invention, this support unit also comprises one can by the foot rest of folding, when this expanded position, this foot rest can support this mounting rod and make this mounting rod tiltedly stand on ground, take face and this mounting rod is sharp angle, when this collapsed position, this foot rest is close to this mounting rod and is accommodated in this seat unit.

Foldable chair of the present invention, this positioning seat is fixed on this mounting rod.

Foldable chair of the present invention, the mounting rod of this support unit has several chases that parallel interval is arranged at outer peripheral face.

Foldable chair of the present invention, this folds unit and also comprises the pin joint seat group that two are arranged at described folded rod top respectively.

Foldable chair of the present invention, described pin joint seat group have respectively one slippingly pivotable be arranged at the upper driven base on this track, and a lower trunnion mount being articulated in this upper driven base, the articulated part docked each other in the font of falling H with two between this upper driven base with this track is connected each other pivotly.

Foldable chair of the present invention, described pin joint seat group also has the stage clip that two are arranged at described upper driven base and described track respectively.

Foldable chair of the present invention, this main seat also comprises the guiding angle surface that two described side edge parts of vicinity are arranged, and described side seat comprises the guiding angle surface that contiguous described side edge part is arranged respectively.

Foldable chair of the present invention, this seat unit also comprises a torsion spring be arranged between this main seat and this upper saddle.

Foldable chair of the present invention, this folds unit and also comprises a link spring be connected between this positioning seat and this upper saddle.

Foldable chair of the present invention, this support unit also comprise one to should positioning seat in this collapsed position and the upper stop part be arranged on this mounting rod.

Foldable chair of the present invention, this foot rest has two and is articulated in the upper foot lever that this folds unit, and the lower foot lever that two are articulated in foot lever respectively.

Foldable chair of the present invention, this foot rest also has two ends and is articulated in described upper foot lever respectively and this folds the operating bar of unit.

Beneficial effect of the present invention is: this member structure folding unit is simple, only there are described folded rod and described trace can reach the effect folded by this seat unit, therefore manufacturing cost reduces, and described folded rod is formed in one but not multisection type pivot joint, can increase structural strength.

Accompanying drawing explanation

Fig. 1 is that one of the first preferred embodiment of Foldable chair of the present invention launches schematic perspective view;

Fig. 2 is that one of this preferred embodiment folds schematic perspective view;

Fig. 3 is that one of the local part of this preferred embodiment is taken down the exhibits midway schematic perspective view, omits foot lever, once foot lever on side seat and;

Fig. 4 is that one of the local part of this preferred embodiment folds schematic diagram;

Fig. 5 looks schematic diagram in one end of one seat unit of this preferred embodiment;

Fig. 6 expresses the schematic side view that of this preferred embodiment takes face;

Fig. 7 is the midway schematic diagram of taking down the exhibits of the corresponding diagram 6 of this seat unit of this preferred embodiment;

Fig. 8 is the front-view schematic diagram that of this preferred embodiment folds unit and this seat unit;

Fig. 9 is the stereogram of a positioning seat of this preferred embodiment;

Figure 10 looks schematic diagram in the end of a upper driven base of this pin joint seat group of this preferred embodiment;

Figure 11 is the generalized section of a pin joint seat group of this preferred embodiment;

Figure 12 is the exploded schematic perspective view of this preferred embodiment.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is described in detail.

Consult Fig. 1 and Fig. 2, the first preferred embodiment of Foldable chair of the present invention is applied on portable crutch chair, and comprises a support unit 1, and fold unit 2, and one comprises the seat unit 3 that a main seat 31 and two is articulated in the side seat 32 of this main seat 31.

This support unit 1 comprises a mounting rod 11, can be fixed on upper limit part 13 on this mounting rod 11 by the foot rest 12, of folding, and one is fixed on lower limit part 14 on this mounting rod 11.

This mounting rod 11 has several chases 111 that parallel interval is arranged at outer peripheral face, and a handle 112 being positioned at top, utilize described chase 111 can increase the structural strength of this mounting rod 11, and the start track providing this to fold unit 2 is to increase the stability of integrated operation.

This foot rest 12 has two and is articulated in the lower foot lever 122 that this upper foot lever 121, two folding unit 2 is articulated in foot lever 121 respectively, and two ends are articulated in described upper foot lever 121 respectively and fold the operating bar 123 of unit 2 with this.

This folds unit 2 and comprises positioning seat 21, slip cap that a slip cap is located at this mounting rod 11 and be located at this mounting rod 11 and folded rod 23, two opposite end that upper saddle 22, two bottom be positioned at above this positioning seat 21 is articulated in this positioning seat 21 is articulated in the pin joint seat group 25 that described folded rod 23 and the trace 24, two of this upper saddle 22 are arranged at described folded rod 23 top respectively respectively, and a draw-in groove 26 being arranged at this mounting rod 11.

This folds unit 2: this positioning seat 21 is for described upper foot lever 121 top pivot joint; This upper saddle 22 is for described operating bar 123 top pivot joint.

Described trace 24 is articulated in the close centre, position of described folded rod 23 and is partial to this positioning seat 21, and the length of described trace 24 is less than the length of described folded rod 23, is conducive to the start of described folded rod 23 this seat unit 3 relative.

Coordinate and consult Fig. 9, this positioning seat 21 has one to should the lower locating slot 211 of lower limit part 14.

This seat unit 3 comprises this main seat 31 and the described side seat 32 being articulated in this main seat 31, this main seat 31 has the outer end 312 of inner end 311, in contrast to this inner end 311 that is articulated in this upper saddle 22, and two to be positioned between this inner end 311 with this outer end 312 and in the contrary side edge part 313 arranged.

A wherein lateral margin of described side seat 32 is articulated in described side edge part 313, and the bottom surface of described side seat 32 is connected to described pin joint seat group 25.

Coordinate and consult Fig. 3, this seat unit 3 also comprises two and is positioned at track 33 bottom described side seat 32, and a torsion spring 34 be arranged between this main seat 31 and this upper saddle 22, and described track 33 is arranged for pin joint seat group 25 slippage for described folded rod 23 top, coordinate and consult Fig. 8, Figure 10 and Figure 11, described pin joint seat group 25 have respectively one slippingly pivotable be arranged at the upper driven base 251 on this track 33, and a lower trunnion mount 252 being articulated in this upper driven base 251, it is the articulated part 253 docked each other in the font of falling H by two between this upper driven base 251 with this track 33, reach the effect connected pivotly each other, this upper driven base 251 is the normal rotations around this side seat 32 vertical, this lower trunnion mount 252 to rotate and both rotations are perpendicular to one another relative to this upper driven base 251, this folded rod 23 rotates relative to this lower trunnion mount 252, this upper driven base 251, this lower trunnion mount 252 is orthogonal with this folded rod 23 three rotation.

Consult Fig. 8, what illustrate further is, seat unit 3 in the present invention has the design of lead angle, this main seat 31 also comprises the guiding angle surface 314 that two described side edge parts 313 of vicinity are arranged, described side seat 32 comprises the guiding angle surface 321 that contiguous described side edge part 313 is arranged respectively, design can allow this seat unit 3 at the unlikely clothing clipping to user of this expanded position whereby, and this main seat 31 also comprises the snap fit 315 that is arranged at bottom surface.

Described folded rod 23 is articulated in described lower trunnion mount 252 respectively, this track 33 has this outer end 312 of a vicinity and away from the expansion end points 331 of this main seat 31 side edge part 313, and this inner end 311 of vicinity and near the folding end points 332 of this main seat 31 side edge part 313, it is worth mentioning that, described track 33 shape between described expansion end points 331 and described folding end points 332 is straight line, and it is arc or other shape that described track 33 shape also can fit Demand Design.

Consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this folds unit 2 and this seat unit 3 can convert between an expanded position and a collapsed position relative to this support unit 1.

Consult Fig. 1, Fig. 5 and Fig. 6, when this expanded position, the described upper foot lever 121 of this foot rest 12, lower foot lever 122, respectively away from this mounting rod 11, make this foot rest 12 can support this mounting rod 11 and make this mounting rod 11 tiltedly stand on ground.

This upper saddle 22 is positioned at this upper limit part 13 place, described trace 24 and described folded rod 23 are angularly crossing away from this mounting rod 11 respectively, described folded rod 23 supports the described side seat 32 of this seat unit 3, and described folded rod 23 top is positioned at the expansion end points 331 of described track 33, the outer end 312 of described folded rod 23 top and this main seat 31 is away from this mounting rod 11.

Now, this main seat 31 and described side seat 32 are co-located at the take face E (as shown in Figure 6) angularly crossing with this mounting rod 11, in the present embodiment, because this mounting rod 11 tiltedly stands on ground, make face of taking and this mounting rod 11 in sharp angle.

Coordinate and consult Fig. 3, Fig. 4 and Fig. 7, during for being converted into this collapsed position by this expanded position, only need to force in this upper saddle 22 upward, this upper saddle 22 is slided towards the direction being away from this positioning seat 21 along this mounting rod 11, when this upper saddle 22 is while slip, drive this foot rest 12 be articulated on this positioning seat 21, and drive this to fold unit 2 to start folding with this seat unit 3, consult Fig. 2 and Fig. 3, this support unit 1 also comprise one to should positioning seat 21 in this collapsed position and the upper stop part 15 be arranged on this mounting rod 11, during from this expanded position to this collapsed position, pull this upper saddle 22 upwards and upwards pull this positioning seat 21 by folding unit 2 with this seat unit 3, when this positioning seat 21 has been driven high the position of stop part 15 on to this, this positioning seat 21 is subject to the block of stop part 15 on this, and drive by described trace 24 with described operating bar 123, this folds unit 2 and draws close after this mounting rod 11 with this seat unit 3, this upper saddle 22 is then positioned this draw-in groove 26, this Foldable chair is made to arrive collapsed position.

It should be noted that in the diagram in order to can internal structure be known, therefore omit one of them side seat 32 and the assemblies such as corresponding upper foot lever 121, lower foot lever 122.

The described operating bar 123 of this foot rest 12 is articulated in this upper saddle 22, therefore, when this upper saddle 22 up slides, described operating bar 123 drives described upper foot lever 121 to rotate upward and is close to this mounting rod 11 gradually, and can make described lower foot lever 122 gradually relatively described upper foot lever 121 pivotable be close to this mounting rod 11, described upper foot lever 121 is the rod members in U-shaped, and when this collapsed position, described lower foot lever 122 is contained in described upper foot lever 121 respectively.

Consult Fig. 3 and Fig. 7, fold in the process of unit 2 folding at this, promote this upper saddle 22 moves, the inner end 311 due to this main seat 31 is articulated in this upper saddle 22, and the inner end 311 of this main seat 31 is also moved up with this upper saddle 22.

In addition, this upper saddle 22 can drive described folded rod 23 to rotate for pivotal point with this positioning seat 21 upward by described trace 24, and the track 33 of seat 32 bottom surface, described side is connected to described folded rod 23, be articulated in the close centre, position of described folded rod 23 due to described trace 24 and be partial to this positioning seat 21, the length of described trace 24 is less than the length of described folded rod 23, be conducive to the start of described folded rod 23 this seat unit 3 relative, when described folded rod 23 rotates upward, end points 331 slippage will be launched to folding end points 332 by described track 33 in described folded rod 23 top, whereby, described side seat 32 can rotate down and draw close in this mounting rod 11 gradually, and draw close towards this main seat 31 direction, this main seat 31 can be pulled with this inner end 311 as pivotal point rotates down and draw close in this mounting rod 11 gradually by described side seat 32 is related, this main seat 31 final presents coated this of U-shaped with described side seat 32 and folds unit 2 and this foot rest 12.

Coordinate and consult Fig. 2, Fig. 4 and Fig. 7, when this foot rest 12, this folds unit 2 and draws close this mounting rod 11 gradually with this seat unit 3, until U-shaped and coated this of this seat unit 3 folds unit 2 and this foot rest 12, making this fold unit 2 is accommodated in this seat unit 3 with this foot rest 12 respectively, now, this foot rest 12, this folds unit 2 and is converted into this collapsed position with this seat unit 3, this main seat 31 is parallel to this mounting rod 11 in fact respectively with described side seat 32, this upper saddle 22 is away from this positioning seat 21, described folded rod 23, described trace 24 mutually draws in and is close to this mounting rod 11, and the described upper foot lever 121 of this foot rest 12 is close to this mounting rod 11, described folded rod 23 top is positioned at the folding end points 332 of described track 33, and with the outer end 312 of this main seat 31 near this mounting rod 11.

Consult Fig. 2 known, when this collapsed position, this foot rest 12, this folds unit 2 with this seat unit 3 near this handle 112, makes the center of gravity of this first preferred embodiment high, when allowing user this first preferred embodiment be used as crutch, can swing comparatively effortlessly.

This folds unit 2 and also comprises a link spring 27 be connected between this positioning seat 21 and this upper saddle 22, during by this collapsed position to this expanded position, remove fixing between this upper saddle 22 and this draw-in groove 26, this upper saddle 22 pulls down to this positioning seat 21 by the elastic-restoring force by this link spring 27, and this torsion spring 34 can provide and allows the elastic-restoring force of this main seat 31 pivotable, and then make this fold unit 2 to launch with this seat unit 3, this folds after unit 2 launches with this seat unit 3, again this is folded unit 2 by gravity, this seat unit 3 and this positioning seat 21, this upper saddle 22 is pulled down to and is butted on this upper limit part 13, this lower limit part 14.

It is worth mentioning that, this link spring 27 can be elasticity rope form assembly, also can be by the screw assembly of rigid.

It is worth mentioning that, this fold unit 2 also comprise one hook rope seat 28 and one hook spring 29 of restricting, design by various locking and compress or unclasp this hook rope spring 29 and this foot rest 12 can be locked in this expanded position with unlocking, be not repeated herein, when this collapsed position, this snap fit 315 hooks and is located at this hook rope seat 28.

Coordinate and consult Figure 11, it is worth mentioning that, described pin joint seat group 25 also has two respectively and is arranged at described upper driven base 251 and the stage clip 254 of described side seat 32, described side seat 32 can be allowed when this collapsed position to stablize this foot rest 12 coated and do not rock.

By above composition, effect of Foldable chair of the present invention and advantage can be summarized as follows:

One, utilize this foot rest 12, this folds unit 2 and this seat unit 3 can convert relative to this mounting rod 11 between this expanded position and this collapsed position, as long as user's one hand pulls this upper saddle 22, this folds unit will towards this collapsed position, this seat unit 3 automatically can be pulled this foot rest 12 U-shaped and coated and fold unit 2 with this, thus has increase aesthetics and easy to operate advantage.

Two, this foot rest 12 folds unit 2 with this and can be accommodated in this seat unit 3 respectively simultaneously, also effectively can block this foot rest 12 and fold with this gap that unit 2 amounts to rear each bar, avoid accidents such as causing that user crushes because using accidentally, also there is the effect improving safety in utilization.

Three, this member structure folding unit 2 is simple, only there is described folded rod 23 can reach with described trace 24 effect folded by this seat unit 3, therefore manufacturing cost reduces, and described folded rod 23 is formed in one but not multisection type pivot joint, and can increase structural strength.

It is worth mentioning that, this support unit 1 also can not arrange this foot rest 12, this mounting rod 11 is only needed uprightly to be fixedly arranged on ground, and make this lower limit part 14 that this positioning seat 21 is fixed on this mounting rod 11, in this kind of application, face of taking will be at right angles crossing with this mounting rod 11 when this expanded position, by this change, can also apply the present invention to the mobile spaces such as bus, rapid transit, motor boat, yacht, or the expansion seat of the interior space such as station, department store, bar desk seat uses.

Claims

1. a Foldable chair, it is characterized in that: comprise a support unit, one folds unit, and a seat unit, this support unit comprises a mounting rod, this folds unit and comprises the positioning seat that is sheathed on this mounting rod, one slip cap is located at this mounting rod and is positioned at the upper saddle above this positioning seat, two bottoms are connected to the folded rod of this positioning seat, and two opposite end be connected to the trace of described folded rod and this upper saddle, this seat unit comprises a main seat, two with the side seat of this main seat pivot joint, and two are positioned at track bottom the seat of described side, this main seat has the inner end that is articulated in this upper saddle, one in contrast to the outer end of this inner end, and two to be positioned between this inner end with this outer end and in contrary side edge part, the wherein side edge of described side seat is articulated in described side edge part respectively, and described track is used for arranging for the slippage of described folded rod top, this track has this outer end of vicinity and away from the expansion end points of this main seat, and this inner end of vicinity and near the folding end points of this main seat, wherein, this folds unit and this seat unit can convert between an expanded position and a collapsed position relative to this support unit, when this expanded position, this main seat and described side seat are co-located at angularly crossingly with this mounting rod takes face, this upper saddle is near this positioning seat, this positioning seat is fixed on this mounting rod, described folded rod top is positioned at the expansion end points of described track, the outer end of described folded rod top and this main seat is away from this mounting rod, when this collapsed position, this seat unit is U-shaped and coated this folds unit, this upper saddle is away from this positioning seat, described folded rod, described trace mutually draws in and is close to this mounting rod, described folded rod top is positioned at the folding end points of described track, and with the outer end of this main seat near this mounting rod.

2. Foldable chair as claimed in claim 1, it is characterized in that: this support unit also comprises one and is fixed on upper limit part on this mounting rod, and one is fixed on lower limit part on this mounting rod, when this expanded position, this upper saddle is butted on this upper limit part and no longer moves down, and this positioning seat is butted on this lower limit part and no longer moves down.

3. Foldable chair as claimed in claim 1, it is characterized in that: this support unit also comprises one can by the foot rest of folding, when this expanded position, this foot rest can support this mounting rod and make this mounting rod tiltedly stand on ground, take face and this mounting rod is sharp angle, when this collapsed position, this foot rest is close to this mounting rod and is accommodated in this seat unit.

4. Foldable chair as claimed in claim 1, is characterized in that: this positioning seat is sheathed on this mounting rod.

5. Foldable chair as claimed in claim 1, is characterized in that: the mounting rod of this support unit has several chases that parallel interval is arranged at outer peripheral face.

6. Foldable chair as claimed in claim 1, is characterized in that: this folds unit and also comprises the pin joint seat group that two are arranged at described folded rod top respectively.

7. Foldable chair as claimed in claim 6, it is characterized in that: described pin joint seat group have respectively one slippingly pivotable be arranged at the upper driven base on this track, and a lower trunnion mount being articulated in this upper driven base, the articulated part docked each other in the font of falling H with two between this upper driven base with this track is connected each other pivotly.

8. Foldable chair as claimed in claim 7, is characterized in that: described pin joint seat group also has the stage clip that two are arranged at described upper driven base and described track respectively.

9. Foldable chair as claimed in claim 1, is characterized in that: this main seat also comprises the guiding angle surface that two described side edge parts of vicinity are arranged, and described side seat comprises the guiding angle surface that contiguous described side edge part is arranged respectively.

10. Foldable chair as claimed in claim 1, is characterized in that: this seat unit also comprises a torsion spring be arranged between this main seat and this upper saddle.

11. Foldable chairs as claimed in claim 1, is characterized in that: this folds unit and also comprises a link spring be connected between this positioning seat and this upper saddle.

12. Foldable chairs as claimed in claim 1 or 2, is characterized in that: this support unit also comprise one to should positioning seat in this collapsed position and the upper stop part be arranged on this mounting rod.

13. Foldable chairs as claimed in claim 3, is characterized in that: this foot rest has two and is articulated in the upper foot lever that this folds unit, and the lower foot lever that two are articulated in foot lever respectively.

14. Foldable chairs as claimed in claim 13, is characterized in that: this foot rest also has two ends and is articulated in described upper foot lever respectively and this folds the operating bar of unit.