CN216166405U

CN216166405U - Linkage type split chair back plate

Info

Publication number: CN216166405U
Application number: CN202122528234.1U
Authority: CN
Inventors: 施宇超; 张新; 赵剑蒙; 郐丹
Original assignee: Yanfeng International Seating Systems Co Ltd
Current assignee: Yanfeng International Seating Systems Co Ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-05
Anticipated expiration: 2031-10-20

Abstract

The utility model relates to a linkage type split chair back plate which comprises an upper chair back plate and a lower chair back plate, wherein the upper chair back plate is provided with a shaft claw, the lower chair back plate is provided with a sliding block, the shaft claw and the sliding block are connected in a matching mode to form a sliding structure, and the upper chair back plate and the lower chair back plate are combined into a whole by means of the sliding structure and can relatively adjust and rotate. According to the linkage type split chair back plate, the upper chair back plate and the lower chair back plate are combined through the sliding structure, so that the gap between the upper chair back plate and the lower chair back plate can be better controlled, and meanwhile, the fixing mode of the upper chair back plate and the lower chair back plate is simplified.

Description

Linkage type split chair back plate

Technical Field

The utility model relates to an automobile seat, in particular to a linkage type split chair back plate.

Background

Based on the seat skeleton back that has the shoulder to adjust, two piece back boards about the back rear portion all adopt at present, reason lies in: the back of the frame moves up and down relatively, so the upper chair back plate and the lower chair back plate need to be fixed separately. As shown in fig. 13, the upper back board 1 ' and the lower back board 2 ' are separately installed, and an additional fixing structure 3 ' is required to be designed to be installed to the back frame 4 ' at the lower edge of the upper back board 1 ' and the upper edge of the lower back board 2 ', and the additional fixing structure 3 ' (about 0.8kg) not only causes the weight of the seat back to be heavy, but also makes the structure complicated. As shown in fig. 14, the middle joint 5 ' of the upper back plate 1 ' and the lower back plate 2 ' is prone to appearance problems of uneven gaps due to the single piece and installation tolerances. As shown in FIG. 15, when the upper back board 1 ' and the lower back board 2 ' move relatively, the middle joint 5 ' is uneven, and the fingers are likely to be jammed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of complex structure and the like of the seat backrest in the prior art, the utility model provides a linkage type split seat back plate.

The linkage type split chair back plate comprises an upper chair back plate and a lower chair back plate, wherein the upper chair back plate is provided with a shaft claw, the lower chair back plate is provided with a sliding block, the shaft claw and the sliding block are connected in a matched mode to form a sliding structure, and the upper chair back plate and the lower chair back plate are combined into a whole through the sliding structure and can rotate relatively in an adjusting mode.

Preferably, the linkage type split chair back plate further comprises a shaft pin, wherein the upper chair back plate and the lower chair back plate are combined into a whole through the shaft pin.

Preferably, the sliding block has a through sliding slot, both ends of the shaft pin are respectively inserted into the shaft claws to be rotatably installed, and the middle part of the shaft pin is inserted into the sliding slot to move along a track defined by the sliding slot.

Preferably, the upper back plate has two shaft claws extending downward from the lower edge of the plate body thereof, and the lower back plate has two sliders disposed near the upper edge thereof.

Preferably, the shaft claw is an L-shaped shaft claw.

Preferably, the shaft claw has a root and a cantilever, wherein the cantilever is fixed on the plate body of the upper chair back plate through the root.

Preferably, the shaft claw has two cantilever arms spaced apart from each other in parallel.

Preferably, the shaft claw has a boss protruding from a distal end of the cantilever toward the plate body, and the slider has a recessed slide groove into which the boss is inserted to move along a track defined by the slide groove.

Preferably, the linkage type split chair back plate is also provided with a fixing interface fixed to the backrest framework.

Preferably, the fixing interface is a metal clamping structure, a plastic clamping structure and/or a plastic clamping structure.

According to the linkage type split chair back plate, the upper chair back plate and the lower chair back plate are combined through the sliding structure, so that the gap between the upper chair back plate and the lower chair back plate can be better controlled, and meanwhile, the fixing mode of the upper chair back plate and the lower chair back plate is simplified.

Drawings

FIG. 1 illustrates a shoulder adjustment process of a car seat having a linked split seat back panel according to a preferred embodiment of the present invention;

FIG. 2 is a partially assembled schematic view of a seat back of the vehicle seat of FIG. 1;

FIG. 3 is an assembly schematic view of a linkage type split seat back panel of the seat back of FIG. 2;

FIG. 4A is a schematic structural view of an upper back plate of the linkage type split back plate of FIG. 3;

FIG. 4B is another schematic structural view of the upper back plate of the linkage type split back plate of FIG. 3;

FIG. 5A is a schematic structural view of a lower back board of the linkage type split back board of FIG. 3;

FIG. 5B is another schematic structural view of the lower back plate of the linkage type split back plate of FIG. 3;

FIG. 6 is an assembly schematic view of the shaft pawl of the upper back plate of FIGS. 4A-4B and the slider of the lower back plate of FIGS. 5A-5B;

FIG. 7 illustrates, in cross-section, a shoulder adjustment process of the upper and lower back boards of FIG. 3;

FIG. 8 is an assembly view of a linkage type split seat back plate according to another preferred embodiment of the present invention;

FIG. 9A is a schematic structural view of an upper back plate of the linkage type split back plate of FIG. 8;

FIG. 9B is another schematic structural view of the upper back plate of the linkage type split back plate of FIG. 8;

FIG. 10A is a schematic view of a lower back plate of the linkage type split back plate of FIG. 8;

FIG. 10B is another structural view of the lower back plate of the linkage type split back plate of FIG. 8;

FIG. 11 is an assembly schematic view of the axle pawl of the upper back plate of FIGS. 9A-9B and the slider of the lower back plate of FIGS. 10A-10B;

FIG. 12 illustrates, in cross-section, a shoulder adjustment process of the upper and lower back boards of FIG. 8;

FIG. 13 is an assembled schematic view of a prior art seat back;

FIG. 14 is a rear view of the seat back of FIG. 13;

fig. 15 is a side view of the seat back of fig. 13.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a seat back B of a car seat having a linked split seat back panel a according to a preferred embodiment of the present invention moves between a design position shown on the left and an adjustment position shown on the right. In the present exemplary embodiment, this design position is referred to as the 0 ° position and this adjustment position is referred to as the 25 ° position, i.e. the seat back B of the motor vehicle seat of the present exemplary embodiment has an adjustment range of 0 to 25 °.

As shown in fig. 2, the seat back B includes a linkage type separate seat back plate a and a back frame C, wherein the linkage type separate seat back plate a is fixed to the back frame C through a fixing interface a 1. It should be understood that the fixing interface a1 may be a metal clip structure, a plastic clip structure, or the like disposed on the chair back plate as required. Compared with the prior art, the seat back B can reduce the fixing characteristics of the framework for the upper and lower chair back plates at the seam, namely, the fixing structure 3' shown in figure 13 is reduced, and the structure is simple and light. In the specific adjusting process, the framework motor drives the backrest framework C, and the linkage type split chair back plate A follows up.

As shown in fig. 3, the linkage type split seat back plate a includes an upper seat back plate 1, a lower seat back plate 2 and a shaft pin 3, wherein the upper seat back plate 1 and the lower seat back plate 2 are integrated by two shaft pins 3 through a sliding structure, so that the upper seat back plate 1 and the lower seat back plate 2 can rotate around the shaft pin 3.

As shown in fig. 4A to 4B, the upper back plate 1 has two L-shaped shaft claws 12 protruding downward from the lower edge of the plate body 11 thereof. Each of the shaft claws 12 has a base 121 and two arms 122, wherein the two arms 122 are fixed to the plate body 11 of the upper back plate 1 through the base 121 in parallel spaced apart relation to each other.

As shown in fig. 5A to 5B, the lower back plate 2 has two sliders 21 provided near the upper edge thereof. Each slider 21 has a through slide slot 211.

As shown in fig. 6, both ends of the shaft pin 3 are rotatably installed by being inserted into the end holes of the cantilever arms 122 of the shaft claws 12 of the upper back board 1, respectively, the middle portion of the shaft pin 3 is inserted into the slide groove 211 of the slide block 21 of the lower back board 2 to move along the track defined by the slide groove 211, and the shaft claws 12 are fixed to the slide block 21 by the shaft pin 3, thereby achieving the linkage of the upper back board 1 and the lower back board 2 and the shoulder adjusting movement of the seat back B between the design position and the adjusting position.

As shown in fig. 7, the upper back board 1 and the lower back board 2 with shoulder adjustment are combined to form a linkage type split back board a through a sliding structure, so that the gap T between the upper back board 1 and the lower back board 2 can be better controlled, and the fixing manner of the upper back board 1 and the lower back board 2 is simplified. In the design position of the left figure, the gap T is 6 mm; in the adjusting position of the right graph, the gap T is 5mm, the delta T is approximately equal to 1mm, and the gap change is uniform and controllable.

As shown in fig. 8, the linkage type separate back board a0 includes an upper back board 10 and a lower back board 20, wherein the upper back board 10 and the lower back board 20 are integrated by means of a sliding structure, so that the upper back board 10 and the lower back board 20 can rotate.

As shown in fig. 9A to 9B, the upper back plate 10 has two L-shaped shaft claws 120 protruding downward from the lower edge of the plate body 110 thereof. Each of the claws 120 has a root 1210, a cantilever 1220 and a boss 1230, wherein the cantilever 1220 is fixed to the plate body 110 of the upper back plate 10 by the root 1210, and the boss 1230 protrudes from the end of the cantilever 1220 toward the plate body 110.

As shown in fig. 10A to 10B, the lower back plate 20 has two sliders 210 provided near the upper edge thereof. Each slider 210 has a downwardly concave runner 2110.

As shown in fig. 11, the boss 1230 of the shaft claw 120 of the upper back plate 10 is inserted into the slide groove 2110 of the slider 210 of the lower back plate 20 to move along a track defined by the slide groove 2110, and the shaft claw 120 is fixed to the slider 210, thereby achieving the interlocking of the upper back plate 10 and the lower back plate 20 and the shoulder adjusting movement of the seat back B between the design position and the adjustment position.

As shown in fig. 12, the upper back plate 10 and the lower back plate 20 with shoulder adjustment are combined to form a linkage type split back plate a0 through a sliding structure, so that the gap T0 between the upper back plate 10 and the lower back plate 20 can be better controlled, and the fixing manner of the upper back plate 10 and the lower back plate 20 is simplified. In the design position of the left figure, the gap T0 is 6 mm; in the adjusting position of the right figure, the gap T0 is 5mm, the gap delta T0 is approximately equal to 1mm, and the gap change is uniform and controllable.

The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The utility model has not been described in detail in order to avoid obscuring the utility model.

Claims

1. The linkage type split chair back plate is characterized by comprising an upper chair back plate and a lower chair back plate, wherein the upper chair back plate is provided with a shaft claw, the lower chair back plate is provided with a sliding block, the shaft claw and the sliding block are connected in a matching mode to form a sliding structure, and the upper chair back plate and the lower chair back plate are combined into a whole by means of the sliding structure and can rotate relatively in an adjusting mode.

2. The linkage type separate chair back plate according to claim 1, further comprising a shaft pin, wherein the upper chair back plate and the lower chair back plate are integrated into a whole through the shaft pin.

3. The linkage type split chair back plate as claimed in claim 2, wherein the sliding block is provided with a through sliding slot, two ends of the shaft pin are respectively inserted into the shaft claws to be rotatably installed, and the middle part of the shaft pin is inserted into the sliding slot to move along a track defined by the sliding slot.

4. The linkage type split chair back plate as claimed in claim 1, wherein the upper chair back plate is provided with two shaft claws extending downwards from the lower edge of the plate body, and the lower chair back plate is provided with two sliding blocks arranged near the upper edge thereof.

5. The linkage type split chair back plate as claimed in claim 4, wherein the shaft claws are L-shaped shaft claws.

6. The linkage type split chair back plate as claimed in claim 5, wherein the shaft claw is provided with a root part and a cantilever, wherein the cantilever is fixed on the plate body of the upper chair back plate through the root part.

7. The ganged split chair back of claim 6, wherein the axle pawl has two cantilevered arms spaced parallel to each other.

8. The coupled type separate chair back plate according to claim 6, wherein the shaft claw has a boss protruding from a distal end of the cantilever toward the plate body, and the slider has a recessed slide groove into which the boss is inserted to move along a track defined by the slide groove.

9. The linkage type separate chair back plate according to claim 1, further comprising a fixing interface fixed to the backrest frame.

10. The linkage type split chair back plate as claimed in claim 9, wherein the fixing interface is a metal clamping structure, a plastic clamping structure and/or a plastic clamping structure.