Pedal mechanism in middle of automobile seat backrest

Abstract

The utility model relates to an automobile seat backrest middle pedal mechanism which comprises a pedal mechanism body installed in the middle of a backrest framework, the pedal mechanism body comprises a driving motor, a pedal connecting rotating shaft, a pedal connecting rod support, a pedal supporting plate and a driving toothed plate, and the driving motor is fixedly connected to the backrest framework through a motor support. The pedal connecting rotating shaft is rotationally connected to the middle position of the backrest framework in the transverse direction, the pedal connecting rod support is fixedly connected to the pedal connecting rotating shaft, the pedal supporting plate is installed on the pedal connecting rod support, the driving toothed plate is fixedly connected to one side of the pedal connecting rotating shaft, and teeth of the driving toothed plate are meshed with a driving gear of the driving motor; the pedal assembly has the advantages that the pedal assembly is arranged in the middle of the backrest framework, other functional elements of the seat backrest are avoided, the motor drives the toothed plate to control opening and closing of the pedal during working, and two rows of passengers lift feet in a zero-gravity posture.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle seats, in particular to a footrest mechanism in the middle of a vehicle seat backrest. Background Art

[0002] Today, zero-gravity seats are an innovative type of comfort seats. During the use of zero-gravity seats, the occupant can adjust the seat to achieve a large-angle lying posture, bringing a more comfortable sitting position. The traditional vehicle seat footrest is arranged at the lower part of the seat cushion skeleton or the lower part of the backrest skeleton. However, as zero-gravity seats are gradually used in the rear seats of vehicles, the traditional footrest mechanism cannot meet the demand for placing the feet in the zero-gravity posture of the second-row occupants. Summary of the Utility Model

[0003] In view of the above problems, the purpose of the utility model is to provide a footrest mechanism in the middle of a vehicle seat backrest to meet the demand for placing the feet in the zero-gravity posture of the second-row occupants and overcome the above-mentioned deficiencies of the prior art.

[0004] A footrest mechanism in the middle of a vehicle seat backrest provided by the utility model includes a footrest mechanism installed at the middle position of the backrest skeleton. The footrest mechanism includes a driving motor, a footrest connecting rotating shaft, a footrest link bracket, a footrest support plate, and a driving toothed plate. The driving motor is fixedly connected to the backrest skeleton through a motor bracket. The footrest connecting rotating shaft is rotatably connected to the middle position of the backrest skeleton in the transverse direction. The footrest link bracket is fixedly connected to the footrest connecting rotating shaft. The footrest support plate is installed on the footrest link bracket. The driving toothed plate is fixedly connected to one side of the footrest connecting rotating shaft. The teeth of the driving toothed plate mesh with the driving gear of the driving motor. The driving motor drives the driving toothed plate to rotate. The driving toothed plate drives the footrest connecting rotating shaft to rotate. The footrest connecting rotating shaft drives the footrest support plate installed on the footrest link bracket to rotate, so that the footrest support plate makes a retracting and extending movement relative to the backrest skeleton.

[0005] As a preference of the utility model, a set of torsion springs is sleeved on the footrest connecting rotating shaft. A spring bracket fixedly connected to the backrest skeleton is arranged below the footrest connecting rotating shaft. Two connecting ends of the torsion spring are respectively fixedly connected to the footrest connecting rotating shaft and the spring bracket. The torsion spring is used to assist the driving motor to drive the footrest support plate to retract and extend.

[0006] As a preference of the utility model, the footrest link bracket is L-shaped.

[0007] The beneficial effects of the utility model are as follows:

[0008] 1. The footrest mechanism installed at the middle position of the backrest skeleton of the utility model can solve the problem that the Z-directional drop between the first-row seat and the second-row seat is large and cannot meet the demand for placing the feet in the zero-gravity posture of the second-row occupants.

[0009] 2. The pedal assembly of the present utility model is arranged in the middle position of the backrest frame, avoiding other functional components of the seat back. During operation, the opening and closing of the pedal are controlled by a motor driving a toothed plate, which cooperates with the zero-gravity posture of the second-row occupants to lift the feet. Description of the Drawings

[0010] By referring to the following description in conjunction with the drawings, and with a more comprehensive understanding of the present utility model, other objects and results of the present utility model will become clearer and easier to understand. In the drawings:

[0011] Figure 1 It is a schematic diagram of the overall structure of the pedal mechanism of this embodiment.

[0012] Figure 2 It is an exploded view of the overall structure of the pedal mechanism of this embodiment.

[0013] Figure 3 It is a side view of the installation of the pedal mechanism of this embodiment and the backrest frame, where A is the schematic position before the pedal tray is opened, and B is the schematic position after the pedal tray is opened.

[0014] Figure 4 It is a schematic diagram of the principle of the pedal mechanism of this embodiment, where C is the schematic position before the pedal tray is opened, and D is the schematic position after the pedal tray is opened.

[0015] Figure 5 It is a schematic diagram of the installation of the backrest frame and the pedal mechanism of this embodiment.

[0016] Figure 6 It is a schematic diagram of the installation of the seat and the pedal mechanism of this embodiment.

[0017] The reference numerals therein include: backrest frame 1, pedal mechanism 2, drive motor 3, pedal connection rotating shaft 4, pedal link bracket 5, pedal tray 6, drive toothed plate 7, motor bracket 8, drive gear 9, torsion spring 10, spring bracket 11. Detailed Embodiment

[0018] Refer to Figure 1-6As shown in the figure, a footrest mechanism in the middle of an automotive seat backrest provided in this embodiment includes: a footrest mechanism 2 installed at the middle position of the backrest frame 1. The footrest mechanism 2 includes: a driving motor 3, a footrest connecting rotating shaft 4, a footrest link bracket 5, a footrest tray 6, and a driving tooth plate 7. The driving motor 3 is fixedly connected to the backrest frame 1 through a motor bracket 8. The footrest connecting rotating shaft 4 is rotatably connected to the middle position of the backrest frame 1 in the transverse direction. Hinge shaft seats are installed on both sides of the middle position of the backrest frame 1. Both ends of the footrest connecting rotating shaft 4 are hinged to the hinge shaft seats. The front end of the L-shaped footrest link bracket 5 is fixedly connected to the footrest connecting rotating shaft 4, and the rear end is installed with a frame for carrying the footrest tray 6. The footrest tray 6 is installed on the frame of the footrest link bracket 5. The driving tooth plate 7 is fixedly connected to one side of the footrest connecting rotating shaft 4. The teeth of the driving tooth plate 7 are engaged with the driving gear 9 of the driving motor 3. Two torsion springs 10 are sleeved on the footrest connecting rotating shaft 4. A spring bracket 11 fixedly connected to the backrest frame 1 is arranged below the footrest connecting rotating shaft 4. The two connecting ends of the torsion spring 10 are respectively fixedly connected to the footrest connecting rotating shaft 4 and the spring bracket 11. The torsion spring 10 is used to assist the driving motor 3 to drive the footrest tray 6 to expand and retract.

[0019] Working principle: The driving motor 3 drives the driving tooth plate 7 to rotate. The driving tooth plate 7 drives the footrest connecting rotating shaft 4 to rotate. The footrest connecting rotating shaft 4 drives the footrest tray 6 installed on the footrest link bracket 5 to rotate, thereby making the footrest tray 6 perform an expansion and retraction action relative to the backrest frame 1.

[0020] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A middle footrest mechanism for an automobile seat back, characterized in that, Including: A footrest mechanism installed at the middle position of the backrest frame. The footrest mechanism includes: a driving motor, a footrest connecting rotating shaft, a footrest link bracket, a footrest plate, and a driving tooth plate. The driving motor is fixedly connected to the backrest frame through a motor bracket. The footrest connecting rotating shaft is rotatably connected to the middle position of the backrest frame in the transverse direction. The footrest link bracket is fixedly connected to the footrest connecting rotating shaft. The footrest plate is installed on the footrest link bracket. The driving tooth plate is fixedly connected to one side of the footrest connecting rotating shaft. The teeth of the driving tooth plate mesh with the driving gear of the driving motor. The driving motor drives the driving tooth plate to rotate. The driving tooth plate drives the footrest connecting rotating shaft to rotate. The footrest connecting rotating shaft drives the footrest plate installed on the footrest link bracket to rotate, thereby making the footrest plate perform a retracting and extending action relative to the backrest frame.

2. The middle footrest mechanism for an automobile seat back according to claim 1, wherein A set of torsion springs is sleeved on the footrest connecting rotating shaft. A spring bracket fixedly connected to the backrest frame is arranged below the footrest connecting rotating shaft. Two connecting ends of the torsion spring are respectively fixedly connected to the footrest connecting rotating shaft and the spring bracket. The torsion spring is used to assist the driving motor to drive the footrest plate to retract and extend.

3. The middle footrest mechanism for an automotive seat backrest according to claim 1, characterized in that, The footrest link bracket is L-shaped.

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