A multifunctional seat structure

Abstract

This utility model relates to the field of automotive seats, specifically disclosing a multifunctional seat structure. It includes a slide rail assembly comprising a slide rail base, and a backrest assembly comprising a backrest base, a first support plate, and a second support plate. The backrest base is folded up on the slide rail base via the first and second support plates. The backrest base has a seat cushion connecting plate, one end of which is fixedly connected to the backrest base. The seat cushion assembly includes a seat cushion side plate, a first connecting rod, and a second connecting rod. One end of the first connecting rod is rotatably connected to the seat cushion side plate, and the other end is rotatably connected to the seat cushion connecting plate. One end of the second connecting rod is rotatably connected to the seat cushion side plate, and the other end is rotatably connected to the slide rail base. A seat cushion actuator is used to adjust the angle between the first connecting rod, the second connecting rod, and the seat cushion side plate. This utility model utilizes different actuators to drive the seat cushion assembly and backrest assembly to switch between different states, allowing the seat to not only fold down flat but also tilt upwards for easy entry.

Description

Technical Field

[0001] This utility model relates to the field of automotive seats, and in particular to seat structures. Background Technology

[0002] Multifunctional seats are increasingly used in vehicles, aiming to provide passengers with a more scenario-based user experience. Currently, most car seats use a linkage extending from the backrest to drive the seat cushion to fold down, allowing the backrest to be folded flat. However, this folding structure makes leather sewing and covering difficult, thus affecting the appearance quality of the seat after cover installation. Furthermore, few seats on the market offer quick-entry functionality while also being compatible with individual seat cushion folding and flattening capabilities.

[0003] Based on such market demand, this patent proposes a novel seat structure with composite functions to meet the usage needs of seats in various functional scenarios in automotive interiors. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a multifunctional seat structure.

[0005] The technical solution adopted by this utility model is as follows: a multifunctional seat structure, including a slide rail assembly, a backrest assembly, and a seat cushion assembly. The slide rail assembly includes a slide rail base. The backrest assembly includes a backrest base, a first support plate, and a second support plate. The backrest base is flipped up on the slide rail base through the first and second support plates. The backrest base is provided with a seat cushion connecting plate. One end of the seat cushion connecting plate is fixedly connected to the backrest base. The seat cushion assembly includes a seat cushion side plate, a first connecting rod, and a second connecting rod. One end of the first connecting rod is rotatably connected to the seat cushion side plate, and the other end is rotatably connected to the seat cushion connecting plate. One end of the second connecting rod is rotatably connected to the seat cushion side plate, and the other end is rotatably connected to the slide rail base. A seat cushion actuator is used to adjust the included angle between the first connecting rod, the second connecting rod, and the seat cushion side plate.

[0006] In some embodiments, the backrest assembly includes a first actuating element for adjusting the angle between the first support plate, the second support plate, and the slide rail base.

[0007] In some embodiments, one end of the first support plate is rotatably connected to the backrest base, and the other end is fixedly provided with a sector gear, and the output end of the first actuator meshes with the sector gear for transmission.

[0008] In some embodiments, the backrest assembly includes a fixed backrest that rotates at an upper limit on a backrest base, and the rotational position between the fixed backrest and the backrest base is located above the seat cushion assembly.

[0009] In some embodiments, one end of the second support plate is rotatably connected to the backrest base, and the other end is rotatably connected to the slide rail base.

[0010] In some embodiments, a first support plate is disposed at end A of the backrest base, and a second support plate is disposed at end A' of the backrest base, with the length of the second support plate being greater than the length of the first support plate.

[0011] In some embodiments, the backrest base is provided with a backrest fixing rod, which is used to connect the backrest bases on both sides, and one end of the seat cushion connecting plate is fixedly connected to the backrest base through the backrest fixing rod.

[0012] In some embodiments, the seat cushion assembly includes a seat cushion fixing rod for connecting two seat cushion side panels, and one end of a first connecting rod is rotatably connected to the seat cushion side panel via the seat cushion fixing rod.

[0013] In some embodiments, a torsion spring is provided between the second support plate and the slide rail base, with one end of the torsion spring connected to the second support plate and the other end connected to the slide rail base.

[0014] In some implementations, a floor lock is provided between the backrest base and the slide rail base.

[0015] The beneficial effects of this utility model are as follows:

[0016] This multi-functional seat structure includes a separate seat cushion folding function for folding the backrest flat, and also includes a function to lift the entire seat for easy access for rear passengers. The seat cushion assembly and backrest assembly each utilize different actuators to drive and switch between different states, allowing the seat to not only fold flat but also tilt upwards for easy entry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0018] Figure 2 This is a side view of the structure of an embodiment;

[0019] Figure 3 This is a schematic diagram of the structure in the easily accessible state of the embodiment;

[0020] Figure 4 This is a schematic diagram of the structure when the backrest is folded flat in the embodiment;

[0021] The labels and names in the diagram correspond as follows: 1. Slide rail assembly; 2. Backrest assembly; 3. Seat cushion assembly; 4. Floor lock; 11. Lower slide rail; 12. Slide rail base; 21. Fixed backrest; 22. Backrest base; 23. First support plate; 24. Second support plate; 25. First actuator; 26. Sector gear; 27. Torsion spring; 31. Seat cushion side plate; 32. Seat cushion fixing rod; 33. First connecting rod; 34. Second connecting rod; 221. Backrest fixing rod; 222. Seat cushion connecting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 This utility model provides a technical solution: a multi-functional seat structure, including a slide rail assembly 1, a backrest assembly 2 and a seat cushion assembly 3. The seat cushion assembly 3 and the backrest assembly 2 are both mounted on the slide rail assembly 1, and the slide rail assembly 1 drives the seat cushion assembly 3 and the backrest assembly 2 to move in a limited position.

[0024] The slide rail assembly 1 includes a lower slide rail 11 and a slide rail base 12, with the slide rail base 12 sliding at the upper limit of the lower slide rail 11.

[0025] Please see Figures 1-3 The backrest assembly 2 includes a fixed backrest 21, a backrest base 22, a first support plate 23, a second support plate 24, and a first actuator 25. The fixed backrest 21 rotates at its upper limit on the backrest base 22. The length of the second support plate 24 is greater than the length of the first support plate 23. The first support plate 23 is located at end A of the backrest base 22, and the second support plate 24 is located at end A' of the backrest base 22. The backrest base 22 is flipped up on the slide rail base 12 by the first support plate 23 and the second support plate 24. The first actuator 25 is used to adjust the included angle between the first support plate 23, the second support plate 24, and the slide rail base 12, thereby achieving an easy-entry state.

[0026] Specifically, in this embodiment, the first actuator 25 drives the first support plate 23 to rotate. One end of the first support plate 23 is rotatably connected to the backrest base 22, and the other end is fixedly provided with a sector gear 26. The sector gear 26 is limited to rotate on the slide rail base 12. One end of the second support plate 24 is rotatably connected to the backrest base 22, and the other end is rotatably connected to the slide rail base 12. The first actuator 25 is a motor with a rotating output end. The output end of the first actuator 25 meshes with the sector gear 26 for transmission. The fixed end of the first actuator 25 is fixedly mounted on the slide rail base 12.

[0027] The first actuator 25 can also be an angle adjuster or an electronic component that enables rotational output, as long as the first actuator 25 drives the first support plate 23 or the second support plate 24 to rotate.

[0028] A floor lock 4 is provided between the backrest base 22 and the slide rail base 12. Under normal conditions, the floor lock 4 is in the locked state. The floor lock 4 is existing technology and will not be described in detail here.

[0029] After the floor lock 4 is unlocked, the first actuator 25 works. The first actuator 25 drives the first support plate 23 to rotate through the meshing transmission with the sector gear 26, thereby raising the backrest base 22. The second support plate 24 rotates as the backrest base 22 is raised. Moreover, since the length of the second support plate 24 is greater than the length of the first support plate 23, the height at end A' of the backrest base 22 is raised is greater than the height at end A, thereby achieving an easy-entry state.

[0030] In order to prevent the seat from falling off easily, a torsion spring 27 is provided between the second support plate 24 and the slide rail base 12. One end of the torsion spring 27 is connected to the second support plate 24 and the other end is connected to the slide rail base 12.

[0031] Please see Figures 1-4The seat cushion assembly 3 includes a seat cushion side plate 31, a seat cushion fixing rod 32, a first connecting rod 33, a second connecting rod 34, and a seat cushion actuator. The seat cushion assembly 3 is disposed above the slide rail base 12. The rotational position between the fixed backrest 21 and the backrest base 22 is located above the seat cushion assembly 3. The backrest base 22 is provided with a backrest fixing rod 221 and a seat cushion connecting plate 222. The backrest fixing rod 221 is used to connect and fix the backrest bases 22 on both sides of the fixed backrest 21. One end of the seat cushion connecting plate 222 is fixedly connected to the backrest base 22 via the backrest fixing rod 221, and the other end is rotatably connected to the first connecting rod 33. The seat cushion fixing rod 32 is used to connect the two seat cushion side plates 31 so that the seat cushion side plates 31 can move synchronously. One end of the first connecting rod 33 is rotatably connected to the seat cushion side plate 31 via the seat cushion fixing rod 32, and the other end is rotatably connected to the seat cushion connecting plate 222. One end of the second link 34 is rotatably connected to the seat cushion side plate 31, and the other end is rotatably connected to the slide rail base 12. The first link 33, the second link 34, and the seat cushion side plate 31 form a quadrilateral-like relationship. The seat cushion actuator is used to adjust the included angle between the first link 33, the second link 34, and the seat cushion side plate 31, so that the second link 34 adjusts the included angle with the seat cushion side plate 31 accordingly, ultimately causing the seat cushion assembly 3 to sink.

[0032] Specifically, the seat cushion actuator includes, but is not limited to, an adjuster, a motor coupled with a gear plate, and a motor coupled with a worm gear (not shown in the figure and these are prior art). For example, if the seat cushion actuator is an adjuster, the adjuster is located at the connection point between the second link 34 and the seat cushion side plate 31. Alternatively, the seat cushion actuator can be a motor coupled with a gear plate (not shown in the figure and this is prior art), with the gear plate fixedly mounted on the second link 34. The motor output end meshes with the gear plate for transmission, and the motor is mounted on the seat cushion side plate 31. Another option is a motor coupled with a worm gear (not shown in the figure and this is prior art), with the motor output end fixedly connected to the worm gear. The motor is mounted on the seat cushion side plate 31, and the worm gear is fixedly mounted on the second link 34.

[0033] Since the entire seat cushion assembly 3 is independent of the backrest assembly 2, the seat cushion assembly 3 can be lowered independently. The fixed backrest 21 flips over to directly above the seat cushion assembly 3 when the seat cushion assembly 3 is lowered, thus achieving a folded and flattened position for the fixed backrest 21. To avoid the seat cushion assembly 3 affecting the flipping of the backrest assembly 2 while it is in the lowered state, the backrest assembly 2 only flips when the seat cushion assembly 3 is in its normal position. However, in reality, the lowering action of the seat cushion assembly 3 and the flipping action of the backrest assembly 2 are independent of each other, and there is no structural interference between them.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional seat structure, comprising a slide rail assembly (1), a backrest assembly (2), and a seat cushion assembly (3), characterized in that, The slide rail assembly (1) includes a slide rail base (12), and the backrest assembly (2) includes a backrest base (22), a first support plate (23), and a second support plate (24). The backrest base (22) is folded up on the slide rail base (12) via the first support plate (23) and the second support plate (24). The backrest base (22) is provided with a seat cushion connecting plate (222), one end of which is fixedly connected to the backrest base (22). The seat cushion assembly ( 3) Includes a seat cushion side plate (31), a first connecting rod (33) and a second connecting rod (34). One end of the first connecting rod (33) is rotatably connected to the seat cushion side plate (31) and the other end is rotatably connected to the seat cushion connecting plate (222). One end of the second connecting rod (34) is rotatably connected to the seat cushion side plate (31) and the other end is rotatably connected to the slide rail base (12). The seat cushion actuator is used to adjust the included angle between the first connecting rod (33), the second connecting rod (34) and the seat cushion side plate (31).

2. The multi-functional seat structure according to claim 1, wherein The backrest assembly (2) includes a first actuator (25) for adjusting the angle between the first support plate (23), the second support plate (24) and the slide rail base (12).

3. The multi-functional seat structure according to claim 2, wherein One end of the first support plate (23) is rotatably connected to the backrest base (22), and the other end is fixedly provided with a sector gear (26). The output end of the first actuator (25) meshes with the sector gear (26) for transmission.

4. The multi-functional seat structure according to claim 1, wherein The backrest assembly (2) includes a fixed backrest (21), which rotates at an upper limit on the backrest base (22), and the rotation position between the fixed backrest (21) and the backrest base (22) is set above the seat cushion assembly (3).

5. The multi-functional seat structure according to claim 1, wherein One end of the second support plate (24) is rotatably connected to the backrest base (22), and the other end is rotatably connected to the slide rail base (12).

6. The multi-functional seat structure according to claim 1, wherein The first support plate (23) is located at end A of the backrest base (22), and the second support plate (24) is located at end A' of the backrest base (22). The length of the second support plate (24) is greater than the length of the first support plate (23).

7. The multi-functional seat structure according to claim 1, wherein The backrest base (22) is provided with a backrest fixing rod (221), which is used to connect the backrest bases (22) on both sides. One end of the seat cushion connecting plate (222) is fixedly connected to the backrest base (22) through the backrest fixing rod (221).

8. The multi-functional seat structure according to claim 1, characterized by The seat cushion assembly (3) includes a seat cushion fixing rod (32), which is used to connect two seat cushion side plates (31). One end of the first connecting rod (33) is rotatably connected to the seat cushion side plate (31) through the seat cushion fixing rod (32).

9. The multi-functional seat structure according to claim 1, wherein A torsion spring (27) is provided between the second support plate (24) and the slide rail base (12). One end of the torsion spring (27) is connected to the second support plate (24), and the other end is connected to the slide rail base (12).

10. The multi-functional seat structure according to claim 1, characterized by A floor lock (4) is provided between the backrest base (22) and the slide rail base (12).

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