CN102920196A - Seat and assembly method thereof - Google Patents

Abstract

The invention relates to a chair and its assembly method, embed the protruding part that the butterfly seat unit set up the surface to extend into the concave containing cavity set up in the corresponding position of the bottom side of the seat cushion frame, and lock the two components with the screw assembly; turning the semi-finished chair to be in an upward state, sleeving a pipe section at the bottom of the butterfly seat unit into an air pressure rod at one end of a chair leg, buckling a protrusion extending forwards at the lower end of the chair back frame unit into two stop blocks arranged at corresponding positions of the butterfly seat unit at intervals, and locking the two components by using a screw fixing component; the inward extending bearing sections at the lower ends of the two armrest support units penetrate through the through holes of the chair cushion frame in corresponding directions and are locked by the screw fixing components. The chair can achieve the effects of exact positioning and greatly improving the assembly efficiency through a simple and convenient installation operation process, thereby reducing the processing cost of the chair.

Description

Seat and assembly method thereof

technical field

The present invention relates to a seat and an assembly method thereof, in particular to a seat and a seat which can be assembled and implemented only through a simple and precise quick-twist lock between each component of the chair and the components. The assembly method enables the chair to achieve a stable locking effect without using additional tools when assembling, and simplifies the components and the screw-locking method of the components, thereby improving the assembly efficiency of the chair and reducing the overall processing cost.

Background technique

In the manufacture of existing chairs, the components of each part are usually processed in large quantities, and then the chairs are assembled, and the chairs can be roughly divided into two types during assembly. One of the forms is shown in Figure 1 and Figure 2, the bottom of the seat cushion frame 10 is facing up to match the butterfly seat unit 20 corresponding to its preset position, and the two components are locked with several screws 60, and then the seat back frame The unit 30 rests on the preset position of the butterfly seat unit 20, and uses several screws 60 to lock the position. Afterwards, the left and right armrest bracket units 40 correspond to the preset positions of the seat cushion frame 10, and then uses several screws to 60 for azimuth locking. In this way, the semi-finished components of the seat can be turned over to be in a normal upward state, so as to cooperate with the air pressure rods that are sleeved into the chair feet and extend upwards, so that the required chairs are formed. This type of assembly has problems in implementation when the seatback frame unit 30 and the butterfly seat unit 20, or the left and right armrest bracket units 40 and the seat cushion frame 10 are assembled together, because there is no stable supporting part, it is impossible to lock them alone. In fact, two operators are required to successfully assemble the chair as a component, which makes installation inconvenient.

The second form is to make the bottom of the seat cushion frame 10 face up to match the preset orientation corresponding to the butterfly seat unit 20, and use several screws 60 to lock the two components, and then turn the semi-finished product of the seat assembly into a normal orientation. In the upper state, the bottom of the seat cushion frame 10 is correspondingly sleeved into the air pressure rod 501 extending upward from the chair foot 50, and then the seat back frame unit 30 is correspondingly placed on the preset position on the butterfly seat unit 20, And use several screws 60 to lock, after that, the left and right side armrest support units 40 are correspondingly against the bottom of both sides on the seat cushion frame 10, and then use several screws 60 to lock to form the required chair. This type of assembly exists in practice when the seat back frame unit 30 and the butterfly seat unit 20, or the left and right side armrest bracket units 40 and the seat cushion frame 10 are assembled against each other, because the screw holes of the adjacent two components are facing downward. , the operator must lower his head and look towards the component to be locked, so that the screw can be smoothly and accurately locked between the two preset components. For the operator, because the two components cannot be found The corresponding screw holes are quite time-consuming and inconvenient in the locking operation, or because the screw holes of the two components are not completely accurate, the screw hole of one of the components is enlarged and damaged, and the components are likely to shake early in the future.

Contents of the invention

In view of the above problems, the main purpose of the present invention is to provide a seat and its assembly method, so that each component of the chair can be easily and accurately aligned by a quick twist lock during the assembly operation. , The chair can be locked smoothly without using additional tools to complete the assembly operation, and at the same time, it can simplify the components and the screw-locking method of the components, thereby improving the assembly efficiency of the chair and reducing the overall processing cost.

形挡块；一椅背框架单元，其下端朝前延伸设置有一截凸部，并在所述椅背框架单元下端朝前延伸的该截凸部下方形成支臂端缘；所述左右侧扶手支架单元，其下端朝内延伸出一截承接段，所述承接段的一端凹设有缺口；一椅脚，其组设端突伸有气压棒；所述椅垫框架、蝴蝶座单元、椅背框架单元、左右侧扶手支架单元及椅脚相互衔接后用螺固组件锁固构成椅具。In order to achieve the above object, a seat provided by the present invention includes a seat cushion frame, a butterfly seat unit, a chair back frame unit, left and right side armrest support units and a chair foot; it is characterized in that: the seat cushion The frame has recesses at the preset position on the bottom side, the above-mentioned recesses at the front end are partially closed, and the recesses at the rear end are completely exposed. On the preset paragraphs on both sides of the bottom side, the bead portion is used to separate the through hole, and a truncated portion is formed on the bottom side of the cushion frame adjacent to the bead portion on both sides; the butterfly seat unit, its assembly There are several protrusions extending from the preset section of the level, a pipe section is set at the center of gravity at the bottom of the butterfly seat unit, and two spacings are formed along the upper layer of the butterfly seat unit towards the rear.

shaped stopper; a chair back frame unit, the lower end of which is extended forward to be provided with a cut convex portion, and an arm end edge is formed below the cut convex portion extending forward from the lower end of the chair back frame unit; the left and right side armrests The bracket unit has a receiving section extending inward from its lower end, and one end of the receiving section is concavely provided with a gap; a chair foot has an air pressure rod protruding from its assembly end; the chair cushion frame, butterfly seat unit, chair The back frame unit, the left and right side armrest bracket units and the chair legs are connected with each other and locked with screw fixing components to form a chair.

In the above-mentioned technical solution of the present invention, the bottom side layer of the seat cushion frame for assembling the butterfly seat unit with the left and right armrest bracket units is formed adjacent to the side of the cavity and the convex portion and The bead portion adjacent to the lower end of the through hole and the seat cushion frame are integrally formed of plastic.

The bottom layer of the seat cushion frame, which is used to cooperate with the butterfly seat unit and the left and right armrest bracket units, is formed on the bottom layer of the seat cushion frame, which is adjacent to the side of the cavity and the convex portion and the bead portion adjacent to the lower end of the through hole The iron piece and the chair cushion frame are covered and formed integrally with plastic.

The convex part formed on the bottom layer of the seat cushion frame used to cooperate with the left and right side armrest bracket units and the bead part adjacent to the lower end of the through hole are iron parts to match the plastic formed seat cushion frame after covering Azimuth locking with screw components.

The cavities recessed at the preset position on the bottom side of the chair cushion frame are partially closed at the front end, and completely exposed at the rear end, so that the butterfly seat unit is close to the assembly layer. The protruding part extending from the front can be limited in orientation when embedded in the rear part, and the protruding part extending from the rear can be directly inserted into the corresponding cavity, and the two protruding parts near the rear end can be locked with the seat cushion frame by the screw fixing component. solid.

形挡块，在位于所述椅背框架单元下端朝前延伸的一截凸部切入后，能使邻靠所述凸部下方的支臂端缘顶抵在所述蝴蝶座单元相应周边形成一方位限制。The butterfly seat unit is provided with two spacings on the rear upper layer

Shaped stopper, after being cut into a section of convex portion extending forward at the lower end of the seatback frame unit, the end edge of the support arm adjacent to the bottom of the convex portion can be pushed against the corresponding periphery of the butterfly seat unit to form a Azimuth restrictions.

The invention provides a method for assembling a seat. The seat is composed of a seat cushion frame, a butterfly seat unit, a seat back frame unit, left and right side armrest support units, and chair legs, and is characterized in that: the butterfly seat unit The protruding parts extending from the preset paragraphs of the assembly level are embedded in the recessed cavities at the corresponding parts on the bottom side of the seat cushion frame, and the butterfly seat unit is locked on the seat cushion with screw fixing components on the frame; then turn the semi-finished chair into a normal upward state, and set the air pressure rod protruding from one end of the chair foot into the pipe section at the center of gravity at the bottom of the butterfly seat unit; A section of the convex portion extending forward from the lower end of the seat back frame unit is correspondingly buckled into the two stoppers set at the corresponding positions of the butterfly seat unit, and the two components are used to limit the orientation of the two components with a screw assembly; A section of the receiving section extending inward from the lower end of the left and right side armrest bracket units penetrates through the through hole formed by the seat cushion frame at the corresponding position with the bead portion, and makes the recessed notch at one end of the receiving section abut against the seat cushion frame. The convex part on the bottom side of the seat cushion frame is arranged on the bottom surface of the seat cushion frame, and then the left and right armrest support units are locked on the seat cushion frame by screw fastening components.

The present invention also provides another method for assembling the seat. The seat is composed of a seat cushion frame, a butterfly seat unit, a seat back frame unit, left and right armrest support units, and chair legs; The protrusions of the seat unit extended on the preset section of the assembly level are embedded in the recesses at the corresponding parts on the bottom side of the seat cushion frame, and the butterfly seat unit is locked on the on the chair cushion frame; then turn the semi-finished chair into a normal upward state, and set the air pressure rod protruding from one end of the chair foot into the pipe section at the center of gravity at the bottom of the butterfly seat unit; A section of the receiving section extending inward from the lower end of the left and right side armrest bracket units penetrates through the through hole formed by the bead at the corresponding position of the seat cushion frame, and makes the recessed notch at one end of the receiving section abut against The convex part on the bottom side of the seat cushion frame is arranged on the bottom side layer of the seat cushion frame, and then the left and right armrest bracket units are locked on the seat cushion frame with screw fixing components; after that, Correspondingly buckle a section of the protruding portion extending forward from the lower end of the chair back frame unit into the two stoppers provided at the corresponding positions of the butterfly seat unit, and use a screw assembly to limit the orientation of the two components.

By adopting the above technical solution, the present invention can smoothly lock the chair without using additional tools through a quick twist lock that is simple and accurately aligned during the assembly operation, and at the same time, the components and components can be simplified. The twist lock method improves the assembly efficiency of the chair and reduces the overall processing cost.

Description of drawings

Fig. 1 is a schematic diagram of the implementation steps of the first conventional seat assembly method;

Fig. 2 is a schematic diagram of the implementation steps of the second conventional seat assembly method;

Fig. 3 is a schematic diagram of the implementation step 1 of the seat assembly method of the present invention;

Fig. 3A-1 is a cross-sectional view of part A of Fig. 3 integrally formed with plastic;

Fig. 3A-2 is a cross-sectional view of part A of Fig. 3 covered with plastic on the outside of the iron piece;

Fig. 3A-3 is a cross-sectional view in which part A of Fig. 3 is an iron piece and the outside rests on a plastic molded part and is positioned in a screw-fixed manner;

Fig. 3B-1 is a cross-sectional view of part B of Fig. 3 integrally formed with plastic;

Fig. 3B-2 is a cross-sectional view of part B of Fig. 3 covered with plastic on the outside of the iron piece;

Fig. 3B-3 is a cross-sectional view in which part B of Fig. 3 is an iron piece and the outside rests on a plastic molded part and is positioned by screw fixing;

Fig. 4 is a schematic diagram of the second implementation step of the seat assembly method of the present invention;

Fig. 5 is a schematic diagram of the third implementation step of the seat assembly method of the present invention;

Fig. 6 is a schematic diagram of the fourth implementation step of the seat assembly method of the present invention;

Fig. 7 is a schematic bottom view of the assembled seat of the present invention.

Detailed ways

The structure and effect of the present invention will be described in detail by citing the following embodiments in conjunction with the accompanying drawings.

The seat and its assembly method designed by the present invention, as shown in Figures 3 to 6, the chair is composed of a seat cushion frame 1, a butterfly seat unit 2, a chair back frame unit 3, left and right armrest support units 4 and chair legs 5. constitute, of which:

As shown in Figure 3, the preset sections of the assembly layer of the butterfly seat unit 2 are respectively extended with convex parts 21, 22 to cooperate with the recesses 11, 12 embedded in the bottom side of the seat cushion frame 1 and recessed in corresponding parts, and recessed in The cavity 11 at the front end of the preset position on the bottom side of the chair cushion frame 1 is partially closed, and the cavity 12 at the rear end is completely exposed, so as to extend the convex portion near the front end of the assembly layer of the butterfly seat unit 2. 21 can be restricted in orientation after being embedded in the cavity 11, and the protruding part 22 extended at the rear can be directly inserted into the corresponding cavity 12, and then the screw assembly 6 (in this embodiment, T-shaped The screw rod is a specific embodiment) that penetrates through the two convex parts 22 at the rear part and the seat cushion frame 1 for azimuth locking.

形挡块24，以利位于椅背框架单元3下端朝前延伸的一截凸部31切入后，能使邻靠凸部31下方的支臂端缘32抵靠在蝴蝶座单元2相应周边形成一方位限制，并使用螺固组件6将两构件作方位限制。Then turn the semi-finished product of the chair into a normal upward state (as shown in Figure 4), and make the bottom of the butterfly seat unit 2 at the bottom of the pipe section 23 at the center of gravity to be sleeved into the air pressure rod 51 protruding from one end of the chair foot 5, and then A section of convex portion 31 extending forward from the lower end of the seat back frame unit 3 is correspondingly buckled into the two stoppers 24 (as shown in Fig. 5 ) formed by the distance between the butterfly seat unit 2 and used for assembling the seat back. The butterfly seat unit 2 of the frame unit 3 is provided with two

Shape stopper 24, in order to be positioned at the lower end of chair back frame unit 3 and extend forward a segment of convex portion 31 after being cut into, can make the support arm end edge 32 that adjoins convex portion 31 below abut against the corresponding periphery of butterfly seat unit 2 and form One azimuth restriction, and use the screw assembly 6 to make the azimuth restriction of the two components.

As shown in Figure 6, a section of the receiving section 41 extending inwardly from the lower end of the left and right armrest bracket unit 4 penetrates through the through hole 14 separated by the bead part 13 at the corresponding position of the seat cushion frame 1, and makes one end of the receiving section 41 concave. The gap 42 provided is against the convex portion 15 on the bottom side of the seat cushion frame 1, so as to be located on the bottom side level of the seat cushion frame 1, and then the left and right armrest bracket units 4 are locked on the seat cushion frame 1 ( As shown in Figure 7), a chair 7 is formed.

From the above, it can be known that the integral components of the chair 7 provided by the present invention can achieve accurate positioning through simple implementation during assembly, and greatly improve the efficiency of assembly, thereby reducing the processing cost of the chair 7 .

The seat 7 of the present invention is formed on the bottom side of the seat cushion frame 1 for assembling the butterfly seat unit 2 and the left and right armrest bracket units 4, on one side of the abutting cavity 11 and the convex portion 15 and the lower end of the abutting through hole 14 The bead portion 13 (as shown in Figure 6) and the seat cushion frame 1 are integrally formed with plastic (as shown in Figure 3A-1 and Figure 3B-1), or the iron piece 16 is integrated with the seat cushion frame 1 with plastic Overlay forming (as shown in Figure 3A-2, Figure 3B-2).

In addition, the above-mentioned chair 7 of the present invention can also be made of iron for the convex portion 15 formed on the bottom side of the seat cushion frame 1 that is assembled with the left and right side armrest bracket units 4 and the bead portion 13 adjacent to the lower end of the through hole 14. 16 to match the chair cushion frame 1 formed by plastic, and use the screw assembly 17 to lock the position after covering (as shown in Fig. 3A-3 and Fig. 3B-3).

Claims (8)

1. A seat comprising a chair cushion frame, a butterfly seat unit, a chair back frame unit, left and right side armrest support units and a chair foot; it is characterized in that: The seat cushion frame is provided with a cavity at the preset position on the bottom side, the cavity at the front end is partially closed, and the cavity at the rear end is completely exposed. On the preset paragraphs on both sides of the bottom side of the seat cushion frame, a through hole is separated by a bead portion, and a convex portion is formed on the bottom side of the seat cushion frame adjacent to the bead portion on both sides; The butterfly seat unit has several protrusions extending from the preset section of the assembly layer, a pipe section is provided at the center of gravity at the bottom of the butterfly seat unit, and two distances are formed along the upper layer of the butterfly seat unit towards the rear. of

shaped block; A chair back frame unit, the lower end of which is extended forwardly is provided with a truncated portion, and an arm end edge is formed under the truncated portion extended forwardly at the lower end of the chair back frame unit; The left and right armrest bracket units have a receiving section extending inward from the lower end thereof, and one end of the receiving section is concavely provided with a gap; A chair foot, the assembly end of which protrudes from an air pressure rod; The chair cushion frame, the butterfly seat unit, the chair back frame unit, the left and right side armrest support units and the chair legs are connected with each other and locked with screw fixing components to form a chair. 2. The seat and its assembly method as claimed in claim 1, characterized in that: the abutment formed by the bottom layer of the seat cushion frame is used to cooperate with the assembly of the butterfly seat unit and the left and right side armrest bracket units. One side of the cavity, the convex portion and the bead portion adjacent to the lower end of the through hole are integrally formed with the chair cushion frame with plastic. 3. The seat and its assembly method as claimed in claim 1, characterized in that: the abutment formed by the bottom layer of the seat cushion frame is used to cooperate with the assembly of the butterfly seat unit and the left and right side armrest bracket units. One side of the cavity, the convex part and the bead part adjacent to the lower end of the through hole are covered and formed integrally with the chair cushion frame by plastic through iron pieces. 4. The seat and its assembly method as claimed in claim 1, characterized in that: the convex part formed on the bottom layer of the seat cushion frame for assembling the left and right side armrest bracket units and the part adjacent to the lower end of the through hole The bead part is made of iron parts matched with the plastic molded chair cushion frame, and the orientation is locked with screw components after covering. 5. The seat and its assembly method according to claim 1, characterized in that: the recessed cavity at the preset position on the bottom side of the seat cushion frame is partially closed at the front end, and is located at the near side. The rear end is completely exposed, so that the protrusion extending from the front of the butterfly seat unit on the assembly level can be restricted in orientation after being embedded, and the protrusion extending from the rear can be directly inserted into the corresponding cavity The two protrusions near the rear end are penetrated by the screw fixing component and locked with the seat cushion frame. 6. The seat and its assembly method as claimed in claim 1, characterized in that: said butterfly seat unit is provided with two spacers on the rear upper layer.

Shaped stopper, after being cut into a section of convex portion extending forward at the lower end of the seatback frame unit, the end edge of the support arm adjacent to the bottom of the convex portion can be pushed against the corresponding periphery of the butterfly seat unit to form a Azimuth restrictions. 7. An assembly method of a seat, the seat is composed of a seat cushion frame, a butterfly seat unit, a chair back frame unit, left and right side armrest support units and chair feet, and is characterized in that: The convex parts extending from the preset sections of the assembly level of the butterfly seat unit are embedded in the recessed cavities at the corresponding parts on the bottom side of the seat cushion frame, and the butterfly seat unit is locked by screw fixing components On the chair cushion frame; then turn the semi-finished chair into a normal upward state, and set the air pressure rod protruding from one end of the chair foot into the pipe section at the center of gravity at the bottom of the butterfly seat unit; Then, a section of the convex part extending forward from the lower end of the chair back frame unit is correspondingly buckled into the two stoppers provided at the corresponding positions of the butterfly seat unit, and the two components are used to limit the orientation of the two components with a screw assembly; after that A section of the receiving section extending inwardly from the lower end of the left and right side armrest bracket units is penetrated through the through hole of the seat cushion frame at the corresponding position separated by the bead part, and one end of the receiving section is recessed. The notch abuts against the protrusion on the bottom side of the seat cushion frame so as to rest on the bottom layer of the seat cushion frame, and then the left and right armrest bracket units are locked on the seat cushion frame with screw fixing components . 8. An assembly method of a seat, the seat is composed of a seat cushion frame, a butterfly seat unit, a chair back frame unit, left and right side armrest support units and chair feet; it is characterized in that: The convex parts extending from the preset sections of the assembly level of the butterfly seat unit are embedded in the recessed cavities at the corresponding parts on the bottom side of the seat cushion frame, and the butterfly seat unit is locked by screw fixing components On the chair cushion frame; then turn the semi-finished product of the chair into a normal upward state, and set the air pressure rod protruding from one end of the chair foot into the pipe section at the center of gravity at the bottom of the butterfly seat unit; Then, a section of the receiving section extending inwardly from the lower end of the left and right side armrest bracket units is penetrated through the through hole separated by the bead portion at the corresponding position of the seat cushion frame, and one end of the receiving section is recessed. The notch abuts against the protrusion on the bottom side of the seat cushion frame so as to rest on the bottom layer of the seat cushion frame, and then the left and right armrest bracket units are locked on the seat cushion frame with screw fixing components ; Afterwards, place a protruding part that is located at the lower end of the chair back frame unit and extends forward correspondingly into the two stoppers that are set at the corresponding positions of the butterfly seat unit, and use a screw assembly to limit the orientation of the two components .

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