Electric pedal mechanism of seat

Abstract

The utility model relates to the field of automobile seats, and particularly discloses a seat electric pedal mechanism which comprises a backrest side plate, a driving assembly and a pedal assembly, the driving assembly comprises a driving fixing plate, a driving element and a gear plate, and the driving fixing plate is fixedly connected with the backrest side plate; the fixed end of the driving element is fixedly connected with the driving fixing plate, the output end of the driving element drives the gear plate to rotate on the driving fixing plate, the pedal assembly comprises a pedal frame, an upper connecting rod and a lower connecting rod, one end of the upper connecting rod rotates on the pedal frame in a limited mode, and the other end of the upper connecting rod rotates on the backrest side plate in a limited mode. One end of the lower connecting rod rotates on the pedal frame in a limited mode, the other end of the lower connecting rod rotates on the driving fixing plate in a limited mode, and the gear plate abuts against the lower connecting rod when rotating. By improving a driving mode and a pedal opening mode, the unfolding length of the pedal plate is increased, the defect that the length of the pedal plate of an existing structure is insufficient is overcome, the supporting length of the foot of a human body is longer, and comfort is better.

Description

Technical Field

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

[0002] Currently, to improve the experience and comfort of rear passengers, the back of the front seats is usually equipped with a flip-up footrest to enhance leg comfort. Existing footrest structures typically use a drive element to directly flip the footrest, and the unfolded length of the footrest is the length of the footrest itself. Due to the limited driving force of the drive element, the length of the footrest is also limited, resulting in an insufficient length of approximately 210mm, which cannot meet the needs of most people.

[0003] The technical problem to be solved by this application is: how to increase the length of the foot pedal when it is extended. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an electric foot pedal mechanism for a seat.

[0005] The technical solution adopted by this utility model is as follows: an electric foot pedal mechanism for a seat, including a backrest side panel, a drive assembly, and a foot pedal assembly. The drive assembly and the foot pedal assembly are disposed between two backrest side panels. The drive assembly includes a drive fixing plate, a drive element, and a gear plate. The drive fixing plate is fixedly connected to the backrest side panel. The fixed end of the drive element is fixedly connected to the drive fixing plate, and the output end drives the gear plate to rotate on the drive fixing plate. The foot pedal assembly includes a foot pedal frame, an upper connecting rod, and a lower connecting rod. One end of the upper connecting rod rotates at the upper limit of the foot pedal frame, and the other end rotates at the upper limit of the backrest side panel. One end of the lower connecting rod rotates at the upper limit of the foot pedal frame, and the other end rotates at the upper limit of the drive fixing plate. The gear plate abuts against the lower connecting rod when rotating.

[0006] In some embodiments, a drive protrusion is fixedly provided at one end of the lower connecting rod that is connected to the fixed lower plate, and a gear plate is provided on one side of the drive protrusion.

[0007] In some implementations, the upper link is configured as a "Z" shape and the lower link is configured as an "L" shape.

[0008] In some embodiments, a limiting component is included, which includes a limiting plate disposed on one side of the gear plate. The gear plate is fixedly provided with a limiting shaft, which slides within an arc-shaped through groove.

[0009] In some embodiments, the limiting component includes a limiting member, one end of which is rotatably connected to the driving protrusion, and the other end of which slides within the arc-shaped through groove.

[0010] In some implementations, the gear plate is arc-shaped and rotates at the upper limit of the drive stationary plate.

[0011] In some embodiments, the foot pedal assembly includes a fixed lower plate that is fixedly connected to the backrest side plate. The fixed lower plate has a through groove disposed between a gear plate and a drive protrusion, through which the gear plate passes when rotating.

[0012] In some implementations, the footrest is provided with an upper link and a lower link on both sides, and the upper link on one side of the footrest is connected to the drive assembly.

[0013] The beneficial effects of this utility model are as follows:

[0014] This new type of electric foot pedal mechanism for seats improves the driving method and foot pedal opening method, increasing the length of the foot pedal when it is extended. This improves upon the shortcomings of previous structures where the foot pedal length was insufficient, providing longer support for the human foot and better comfort. The foot pedal is extended by a gear plate driving a four-bar linkage structure, and the extension process is stable. The overall structure is simple and reliable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged schematic diagram of structure labeled A;

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0018] Figure 4 This is a schematic diagram of the connection structure between the backrest side panel and the drive assembly.

[0019] The labels and names in the diagram correspond as follows: 1. Backrest side panel; 2. Drive assembly; 3. Foot pedal assembly; 4. Limiting assembly; 21. Drive fixing plate; 22. Drive element; 23. Drive gear; 24. Gear plate; 31. Foot pedal frame; 32. Upper connecting rod; 33. Lower connecting rod; 34. Fixed upper plate; 35. Fixed lower plate; 36. Drive protrusion; 41. Limiting plate; 42. Limiting component; 43. Arc-shaped through groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 This utility model provides a technical solution: an electric foot pedal mechanism for a seat, including a backrest side panel 1, a drive assembly 2 and a foot pedal assembly 3, wherein the drive assembly 2 and the foot pedal assembly 3 are disposed between two backrest side panels 1.

[0022] Please see Figure 2 and Figure 4 The drive assembly 2 includes a drive fixing plate 21, a drive element 22, a drive gear 23, and a gear plate 24. The drive element 22 is an electric cylinder or pneumatic cylinder with a rotating output end. The drive fixing plate 21 is fixedly connected to the backrest side plate 1. The fixed end of the drive element 22 is fixedly connected to the drive fixing plate 21, and the output end is fixedly connected to the drive gear 23. The drive gear 23 meshes with the gear plate 24 for transmission. The gear plate 24 is arc-shaped and rotates at the upper limit of the drive fixing plate 21. The drive element 22 drives the drive gear 23 to rotate, thereby driving the gear plate 24 to rotate.

[0023] Please see Figure 1 and Figure 3 The foot pedal assembly 3 includes a foot pedal frame 31, an upper connecting rod 32, a lower connecting rod 33, a fixed upper plate 34, and a fixed lower plate 35. The fixed upper plate 34 and the fixed lower plate 35 are positioned vertically between the backrest side plate 1 and are fixedly connected to the backrest side plate 1. One end of the upper connecting rod 32 is rotatably connected to the fixed upper plate 34, and the other end is rotatably connected to the foot pedal frame 31. One end of the lower connecting rod 33 is rotatably connected to the drive fixing plate 21, and the other end is rotatably connected to one end of the foot pedal frame 31. A drive protrusion 36 is fixedly provided at the end of the lower connecting rod 33 that connects to the fixed lower plate 35. The upper connecting rod 32 is configured as a "Z" shape, and the lower connecting rod 33 is configured as an "L" shape. The fixed lower plate 35 can reduce the damage to the drive assembly 2 caused by the passenger's legs during movement.

[0024] A gear plate 24 is disposed on one side of the drive protrusion 36. A through groove is provided on the fixed lower plate 35 between the gear plate 24 and the drive protrusion 36. When the gear plate 24 rotates, it passes through the through groove, creating an abutment relationship with the drive protrusion 36. The gear plate 24 moves away from the drive assembly 2, forcing the lower connecting rod 33 to rotate. The lower connecting rod 33 lifts one end of the footrest 31, while the other end opens downwards. The upper connecting rod 32 rotates as the footrest 31 opens. The footrest 31 reaches its opening limit when the upper connecting rod 32 and the lower connecting rod 33 abut. Both sides of the footrest 31 are provided with upper connecting rods 32 and lower connecting rods 33. The upper connecting rod 32 on one side of the footrest 31 is connected to the drive assembly 2.

[0025] Please see Figure 2In order to limit the rotation range of the gear plate 24, in this embodiment, preferably, a limiting component 4 is included. The limiting component 4 includes a limiting plate 41 and a limiting member 42. The limiting plate 41 is provided with an arc-shaped through groove 43. The limiting plate 41 is disposed on one side of the gear plate 24. The gear plate 24 is fixedly provided with a limiting shaft. The limiting shaft slides within the arc-shaped through groove 43. One end of the limiting member 42 is rotatably connected to the driving protrusion 36, and the other end slides within the arc-shaped through groove 43. The limiting member 42 restricts the driving protrusion 36 from moving to the terminal position.

[0026] The working principle and usage process of this utility model are as follows: When the drive element 22 operates, the gear plate 24 rotates, driving the upper connecting rod 32 to rotate away from the drive assembly 2 and open. Since the upper connecting rod 32 and the lower connecting rod 33 are hinged together, the footrest 31 will slowly unfold forward under the push of the upper connecting rod 32 and the lower connecting rod 33. When the gear plate rotates to the maximum travel limit, the entire footrest 31 will be fully unfolded. When the drive element 22 reverses, the gear plate 24, the upper connecting rod 32 and the lower connecting rod 33 mechanism will also perform a reset action at the same time. When the gear plate 24 rotates to the initial position, the entire footrest assembly 3 will also reach the closed state.

[0027] Compared to the previous structure where the foot pedal was directly flipped open by the drive element 22, this embodiment uses a four-bar structure consisting of an upper link 32 and a lower link 33. The foot pedal 31 is driven by the four-bar structure to achieve a longer unfolded length.

[0028] 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 seat electric foot pedal mechanism, comprising a backrest side panel (1), a drive assembly (2), and a foot pedal assembly (3), wherein the drive assembly (2) and the foot pedal assembly (3) are disposed between two backrest side panels (1), characterized in that, The drive assembly (2) includes a drive fixing plate (21), a drive element (22), and a gear plate (24). The drive fixing plate (21) is fixedly connected to the backrest side plate (1). The fixed end of the drive element (22) is fixedly connected to the drive fixing plate (21), and the output end drives the gear plate (23) to rotate on the drive fixing plate (21). The foot pedal assembly (3) includes a foot pedal frame (31), an upper connecting rod (32), and a lower connecting rod (33). One end of the upper connecting rod (32) rotates at the upper limit of the foot pedal frame (31), and the other end rotates at the upper limit of the backrest side plate (1). One end of the lower connecting rod (33) rotates at the upper limit of the foot pedal frame (31), and the other end rotates at the upper limit of the drive fixing plate (21). The gear plate (24) abuts against the lower connecting rod (33) when rotating.

2. The electric footrest mechanism for a seat according to claim 1, characterized in that, The lower connecting rod (33) is connected to the fixed lower plate (35) at one end, and a driving protrusion (36) is fixed thereon. The gear plate (24) is located on one side of the driving protrusion (36).

3. The electric footrest mechanism for a seat according to claim 1, characterized in that, The upper connecting rod (32) is configured as a "Z" shape, and the lower connecting rod (33) is configured as an "L" shape.

4. The electric footrest mechanism for a seat according to claim 1, characterized in that, The device includes a limiting component (4), which includes a limiting plate (41) disposed on one side of a gear plate (24). The gear plate (24) is fixedly provided with a limiting shaft, which slides within an arc-shaped through groove (43).

5. The electric footrest mechanism for a seat according to claim 4, characterized in that, The limiting component (4) includes a limiting member (42), one end of which is rotatably connected to the driving protrusion (36), and the other end is limited and slidable in the arc-shaped through groove (43).

6. The electric footrest mechanism for a seat according to claim 1, characterized in that, The gear plate (24) is arc-shaped and rotates at the upper limit of the drive fixing plate (21).

7. The electric footrest mechanism for a seat according to claim 1, characterized in that, The foot pedal assembly (3) includes a fixed lower plate (35), which is fixedly connected to the backrest side plate (1). The fixed lower plate (35) is provided with a through groove, which is located between the gear plate (24) and the drive protrusion (36). The gear plate (24) passes through the through groove when rotating.

8. The electric footrest mechanism for a seat according to claim 1, characterized in that, The footrest (31) is provided with an upper connecting rod (32) and a lower connecting rod (33) on both sides. The upper connecting rod (32) on one side of the footrest (31) is connected to the drive assembly (2).

Images