A front seat back folding structure

Abstract

This utility model relates to the field of automotive seat technology, specifically to a front-row car backrest folding structure, including a base, a pulling component, a pushing component, a limiting block, a rotating block, and a backrest frame. When the backrest frame needs to be folded, the pulling component is pulled, which drives the pushing component to rotate. The pushing component pushes the limiting block to rotate away from the rotating block until the limiting block releases its restriction on the rotating block. At this point, the backrest frame can be pulled to rotate towards the base, folding the backrest frame. After folding, the limiting block returns to its original position, thus limiting the backrest frame. This utility model uses a cable-driven and rotating rod-linked mechanical structure to replace the traditional multi-link / hinge system, reducing the number of components by more than 40%. The overall structural thickness is reduced by 30%-50% compared to traditional designs, effectively avoiding encroachment on the legroom of the driver's cabin, thereby solving the problem of the large size and space occupation of existing front-row folding structures.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a front-row car backrest folding structure. Background Technology

[0002] With the development of automobiles, passengers have higher and higher requirements for storage space and vehicle quality. Now, many 7-seater SUVs have their spare tires placed under the third-row seats, and the second and third-row seats can be folded down to make it easier to place items on the folded seats.

[0003] Currently, most existing front-row folding structures use multi-link or hinge linkage designs, resulting in a large number of mechanical components and a large volume, which not only increases manufacturing costs but may also occupy cockpit space. Utility Model Content

[0004] The purpose of this utility model is to provide a front seat back folding structure for automobiles, which aims to solve the problem that the existing front seat folding structures are bulky and occupy driving space.

[0005] To achieve the above objectives, this utility model provides a front-row car backrest folding structure, including a base, a pulling component, a pushing component, a limiting block, a rotating block, and a backrest frame;

[0006] The pulling component is installed on one side of the base, the pushing component is installed on the base and connected to the pulling component, the limiting block is rotatably connected to the base and located on the side of the base near the pushing component, the rotating block is rotatably connected to the base and abuts against the limiting block, and the backrest frame is rotatably connected to the base and fixedly connected to the rotating block.

[0007] The pulling assembly includes a handle and a cable. The handle is rotatably connected to the base and is located on the base. The output end of the cable is fixedly connected to the handle and the base.

[0008] The pulling assembly further includes a first tension spring, which is fixedly connected to the base and the rotating handle, and is located between the rotating handle and the base.

[0009] The pushing assembly includes a rotating rod, a transmission block, and a pushing block. The rotating rod is rotatably connected to the base and is located on the base. The transmission block is fixedly connected to the other output end of the cable and is also fixedly connected to the rotating rod. The pushing block is fixedly connected to the rotating rod and is located on the side of the rotating rod away from the transmission block.

[0010] The front seat back folding structure further includes a second tension spring and a third tension spring. The second tension spring is fixedly connected to the base and the transmission block, and is located between the base and the transmission block. The third tension spring is fixedly connected to the limiting block and the base, and is located between the limiting block and the base.

[0011] This invention discloses a front-row car backrest folding structure. The base provides installation conditions for the pulling component, pushing component, limiting block, and rotating block. When the backrest frame needs to be folded, the pulling component is pulled, which drives the pushing component to rotate. The pushing component pushes the limiting block to rotate away from the rotating block until the limiting block releases its restriction on the rotating block. At this point, the backrest frame can be pulled to rotate towards the base, folding the backrest frame. After folding, the limiting block returns to its original position, limiting the backrest frame. This invention uses a cable-driven and rotating rod linkage mechanical structure to replace the traditional multi-link / hinge system, reducing the number of components by more than 40%. By integrating the pushing component, limiting block, and rotating block into the base plane, the overall structural thickness is reduced by 30%-50% compared to traditional designs, effectively avoiding encroachment on the legroom of the driver's cabin, thus solving the problem of the large size and space occupation of existing front-row folding structures. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of a front seatback folding structure of this utility model.

[0014] Figure 2 This is a partial schematic diagram of a front seatback folding structure of a car according to the present invention.

[0015] Figure 3 This is a partial view from another direction of the front seat back folding structure of this utility model.

[0016] In the diagram: 1-base, 2-limiting block, 3-rotating block, 4-backrest frame, 5-handle, 6-pull cable, 7-first tension spring, 8-rotating rod, 9-transmission block, 10-pushing block, 11-second tension spring, 12-third tension spring. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1-3 This utility model provides a front row car backrest folding structure, including a base 1, a pulling component, a pushing component, a limiting block 2, a rotating block 3, and a backrest frame 4;

[0019] The pulling component is installed on one side of the base 1, the pushing component is installed on the base 1 and connected to the pulling component, the limiting block 2 is rotatably connected to the base 1 and located on the side of the base 1 close to the pushing component, the rotating block 3 is rotatably connected to the base 1 and abuts against the limiting block 2, and the backrest frame 4 is rotatably connected to the base 1 and fixedly connected to the rotating block 3.

[0020] In this embodiment, the base 1 provides installation conditions for the pulling component, the pushing component, the limiting block 2, and the rotating block 3. When the backrest frame 4 needs to be folded, the pulling component is pulled, which drives the pushing component to rotate. The pushing component pushes the limiting block 2 to rotate away from the rotating block 3 until the limiting block 2 releases its restriction on the rotating block 3. At this point, the backrest frame 4 can be pulled to rotate towards the base 1 to fold the backrest frame 4. After folding, the limiting block 2 resets to limit the backrest frame 4. This invention uses a mechanical structure with cable 6 transmission and rotating rod 8 linkage to replace the traditional multi-link / hinge system, reducing the number of components by more than 40%. By integrating the pushing component, limiting block 2, and rotating block 3 into the plane of the base 1, the overall structural thickness is reduced by 30%-50% compared to traditional designs, effectively avoiding encroachment on the legroom of the cockpit, thus solving the problem of the existing front-row folding structure being too bulky and occupying too much driving space.

[0021] Furthermore, the pulling assembly includes a handle 5 and a cable 6. The handle 5 is rotatably connected to the base 1 and is located on the base 1. The output end of the cable 6 is fixedly connected to the handle 5 and fixedly connected to the base 1.

[0022] In this embodiment, rotating the handle 5 can cause the cable 6 to retract, and the retraction of the cable 6 can cause the transmission block 9 to rotate.

[0023] Furthermore, the pulling assembly also includes a first tension spring 7, which is fixedly connected to the base 1 and the rotating handle 5, and is located between the rotating handle 5 and the base 1.

[0024] In this embodiment, the handle 5 can be reset by the rebound force of the first tension spring 7.

[0025] Furthermore, the pushing assembly includes a rotating rod 8, a transmission block 9, and a pushing block 10. The rotating rod 8 is rotatably connected to the base 1 and is located on the base 1. The transmission block 9 is fixedly connected to the other output end of the cable 6 and is also fixedly connected to the rotating rod 8. The pushing block 10 is fixedly connected to the rotating rod 8 and is located on the side of the rotating rod 8 away from the transmission block 9.

[0026] In this embodiment, the rotation of the transmission block 9 can drive the rotating rod 8 to rotate, the rotation of the rotating rod 8 can drive the pushing block 10 to rotate, and the rotation of the pushing block 10 can drive the limiting block 2 to rotate to release the limiting of the rotating block 3.

[0027] Furthermore, the front seat back folding structure also includes a second tension spring 11 and a third tension spring 12. The second tension spring 11 is fixedly connected to the base 1 and to the transmission block 9, and is located between the base 1 and the transmission block 9. The third tension spring 12 is fixedly connected to the limiting block 2 and to the base 1, and is located between the limiting block 2 and the base 1.

[0028] In this embodiment, the transmission block 9 can be reset by the rebound force of the second tension spring 11, and the limiting block 2 can be reset by the rebound force of the third tension spring 12.

[0029] When the backrest frame 4 needs to be folded, the rotating handle 5 is rotated, which causes the cable 6 to retract. The cable 6 drives the transmission block 9 to rotate, which in turn drives the rotating rod 8 to rotate. The rotating rod 8 drives the pushing block 10 to rotate, and the pushing block 10 pushes the limiting block 2 to rotate away from the rotating block 3 until the limiting block 2 releases its restriction on the rotating block 3. At this point, the backrest frame 4 can be pulled to rotate towards the base 1 to fold the backrest frame 4. After folding, the limiting block 2 returns to its original position to limit the backrest frame 4. This utility model uses a mechanical structure with cable 6 transmission and rotating rod 8 linkage to replace the traditional multi-link / hinge system, reducing the number of components by more than 40%. By integrating the pushing component, limiting block 2 and rotating block 3 into the plane of the base 1, the overall structural thickness is reduced by 30%-50% compared to the traditional design, effectively avoiding encroachment on the legroom of the cockpit, thus solving the problem of the existing front-row folding structure being too bulky and occupying too much driving space.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A front seatback folding structure for automobiles, characterized in that, Includes a base, a pull assembly, a push assembly, a limit block, a rotating block, and a backrest frame; The pulling component is installed on one side of the base, the pushing component is installed on the base and connected to the pulling component, the limiting block is rotatably connected to the base and located on the side of the base near the pushing component, the rotating block is rotatably connected to the base and abuts against the limiting block, and the backrest frame is rotatably connected to the base and fixedly connected to the rotating block.

2. The front seatback folding structure as described in claim 1, characterized in that, The pulling assembly includes a handle and a cable. The handle is rotatably connected to the base and is located on the base. The output end of the cable is fixedly connected to the handle and the base.

3. The front seatback folding structure as described in claim 2, characterized in that, The pulling assembly also includes a first tension spring, which is fixedly connected to the base and the rotating handle, and is located between the rotating handle and the base.

4. The front seatback folding structure as described in claim 2, characterized in that, The pushing assembly includes a rotating rod, a transmission block, and a pushing block. The rotating rod is rotatably connected to the base and is located on the base. The transmission block is fixedly connected to the other output end of the cable and is also fixedly connected to the rotating rod. The pushing block is fixedly connected to the rotating rod and is located on the side of the rotating rod away from the transmission block.

5. The front seatback folding structure as described in claim 4, characterized in that, The front seat back folding structure further includes a second tension spring and a third tension spring. The second tension spring is fixedly connected to the base and the transmission block, and is located between the base and the transmission block. The third tension spring is fixedly connected to the limiting block and the base, and is located between the limiting block and the base.

Images