Automobile seat posture adjusting chassis

Abstract

The utility model belongs to the technical field of automobiles, and particularly relates to an automobile seat posture adjusting chassis which comprises a fixed base fixedly connected with an automobile body and a seat mounting plate connected with the fixed base. The front end of the seat mounting plate has the degree of freedom of swinging relative to the fixed base by means of a driving assembly, the driving assembly comprises a driving motor connected with the seat mounting plate, a gear connected with the driving end of the driving motor and a rack arranged on the fixed base and matched with the gear, and the angle of a seat can be adjusted through the chassis. And the driving assembly for driving the seat to adjust the angle is simple in structure, reasonable in layout, low in manufacturing cost and suitable for vigorous popularization and application.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and particularly relates to an automobile seat attitude adjustment chassis. Background Art

[0002] With the development and progress of technology, automobiles have become the main means of transportation for travel. Therefore, people spend more and more time in automobiles, and the requirements for the comfort of riding in automobiles are also getting higher and higher. Traditional automobile seats can be moved back and forth as a whole and the angle of the seat back can be adjusted to increase the riding space or realize the reclining angle of the passengers, so as to improve the comfort of the passengers when riding in the automobile. However, the angle of the seat cushion cannot be adjusted, and the riding comfort of the passengers when resting and relaxing in the automobile still needs to be improved. Therefore, a mechanism capable of adjusting the angle of the seat cushion is required. However, if the structure of the mechanism is complex, it is easy to increase the manufacturing cost of the vehicle, resulting in a significant increase in the vehicle price and affecting the sales volume of the vehicle. Therefore, a mechanism with a simple structure and low manufacturing cost for adjusting the angle of the automobile seat cushion is needed. Content of the Utility Model

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an automobile seat attitude adjustment chassis, which can adjust the seat angle, and the driving component for driving the seat to adjust the angle has a simple structure, reasonable layout and low manufacturing cost, and is suitable for wide promotion and application.

[0004] The specific technical solution adopted by the utility model is as follows:

[0005] An automobile seat attitude adjustment chassis includes a fixed base fixedly connected to the vehicle body and a seat mounting plate connected to the fixed base. The key lies in that the rear end of the seat mounting plate is hinged to the fixed base, and the front end of the seat mounting plate has a degree of freedom of swinging relative to the fixed base by means of a driving component. The driving component includes a driving motor connected to the seat mounting plate, a gear connected to the driving end of the driving motor, and a rack arranged on the fixed base and matching with the gear.

[0006] Driving components are respectively arranged on the left and right sides of the seat mounting plate.

[0007] Brackets are respectively arranged on the left and right sides of the fixed base. The rear end of the seat mounting plate is hinged to the brackets, and the rack is fixedly connected to the brackets.

[0008] The brackets are fixedly connected to the rack by means of a C-shaped frame, and a support rod connected to the back of the rack is also arranged in the C-shaped frame.

[0009] The brackets are connected by a connecting plate to form a rectangular frame.

[0010] The upper and lower ends of the described rack are respectively provided with limit protrusions, and the described gear and the limit protrusions form a limit fit for the swing angle of the seat mounting plate.

[0011] The beneficial effects of the present utility model are:

[0012] In the present utility model, the rear end of the seat mounting plate is hinged to the fixed base, and the seat mounting plate can rotate and swing along the hinge point to adjust the seat angle; the swing of the seat mounting plate is realized by means of a driving assembly. The driving motor drives the gear to rotate, and the gear and the rack mesh to generate relative movement. Since the rack is fixed on the fixed base, the gear moves upward along the rack. The gear drives the seat mounting plate to swing relative to the fixed base, and the front end of the seat mounting plate is lifted backward; when the driving motor drives the gear to reverse, the gear moves downward along the rack, and the front end of the seat mounting plate falls forward. With the aid of this driving assembly, the seat mounting plate can drive the seat to achieve various modes of adjustment, and this driving assembly has a simple and compact structure, is easy to manufacture and maintain, and is suitable for wide promotion and application. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of Embodiment 1;

[0014] Figure 2 It is a top view of Embodiment 1;

[0015] Figure 3 It is for Figure 2 a sectional view taken along the A-A direction of

[0016] Figure 4 It is a schematic diagram of the state where the seat mounting plate is lifted in Embodiment 1;

[0017] Figure 5 It is a schematic structural diagram of Embodiment 2;

[0018] In the drawings, 1, fixed base; 2, seat mounting plate; 3, driving motor; 4, gear; 5, rack; 6, bracket; 7, C-shaped frame; 8, support rod; 9, connecting plate; 10, limit protrusion; 11, reducer. Detailed Embodiments

[0019] The following further illustrates the present utility model in conjunction with the drawings and specific embodiments:

[0020] Embodiment 1, as shown in Figures 1-4As shown in the figure, an automobile seat attitude adjustment chassis includes a fixed base 1 fixedly connected to the vehicle body and a seat mounting plate 2 connected to the fixed base 1. The seat is mounted on the seat mounting plate 2. The key is that the rear end of the seat mounting plate 2 is hinged to the fixed base 1, and the front end of the seat mounting plate 2 has a degree of freedom to swing relative to the fixed base 1 by means of a driving assembly. The driving assembly includes a driving motor 3, a gear 4, and a rack 5. Among them, the driving motor 3 is drivingly connected to the gear 4, the driving motor 3 is fixedly connected to the seat mounting plate 2, the rack 5 is arranged on the fixed base 1 and fixedly connected to the fixed base 1, and the gear 4 meshes with the rack 5; the rear end of the seat mounting plate 2 is hinged to the fixed base 1, and the seat mounting plate 2 can rotate and swing along this hinge point to realize the adjustment of the seat angle; the swing of the seat mounting plate 2 is realized by means of the driving assembly. The driving motor 3 drives the gear 4 to rotate, and the gear 4 meshes with the rack 5 to generate relative movement. Since the rack 5 is fixed on the fixed base 1, the gear 4 moves upward along the rack 5, and the gear 4 drives the seat mounting plate 2 to swing relative to the fixed base 1, and the front end of the seat mounting plate 2 is lifted backward; the rack 5 is an arc-shaped rack, and the center of the arc-shaped rack and the hinge point of the seat mounting plate 2 are located on the same axis. The driving motor 3 drives the gear 4 to reverse, the gear 4 moves downward along the rack 5, and the front end of the seat mounting plate 2 falls forward. With the help of this driving assembly, the seat mounting plate 2 can drive the seat to realize the adjustment of multiple modes such as the normal mode, the rest mode of swinging backward by 16°-28°, and the zero-gravity mode of swinging backward by 36°-60°, which is convenient for the passengers to select a comfortable sitting and lying angle. The driving assembly has a simple and compact structure, is easy to manufacture and maintain, and is suitable for wide promotion and application.

[0021] A speed reducer 11 is arranged between the driving motor 3 and the gear 4. The power output shaft of the speed reducer 11 is connected to the gear 4 and they are coaxially arranged. The axial direction of the driving motor 3 is parallel to the front-rear direction of the seat mounting plate 2, and the axial direction of the driving motor 3 is inclined downward from front to back. The driving motor 3 is arranged on the front side of the rack 5 and connected to the speed reducer 11. The layout is reasonable and compact, and the driving assembly occupies a small space between the seat mounting plate 2 and the fixed base 1.

[0022] Driving assemblies are respectively arranged on the left and right sides of the seat mounting plate 2, and the seat mounting plate 2 is driven to swing simultaneously from both sides, providing a greater driving force for the swing of the seat mounting plate 2 and improving the stability of the swing process of the seat mounting plate 2 at the same time.

[0023] Brackets 6 are respectively arranged on the left and right sides of the fixed base 1. The rear end of the seat mounting plate 2 is hinged to the brackets 6, and the rack 5 is fixedly connected to the brackets 6. The protruding brackets 6 are arranged on the fixed base 1 for connecting with the seat mounting plate 2 and the rack 5, which is easy to process and install and helps to reduce the overall weight of the seat chassis.

[0024] Among them, the bracket 6 is fixedly connected to the rack 5 by means of a C-shaped frame 7. The upper and lower ends of the rack 5 are connected to the inner wall of the C-shaped frame 7. Moreover, a support rod 8 connected to the back surface of the rack 5 is also provided inside the C-shaped frame 7. The C-shaped frame 7 and the support rod 8 provide support for the rack 5, improve the strength of the rack 5, ensure that the rack 5 can fully mesh with the rack 4 for operation, enable the seat mounting plate 2 to swing normally, and prevent the rack 5 from being skewed due to the force exerted by the gear 4 on the rack 5 when the gear 4 moves on the rack 5, and prevent the seat from suddenly dropping when the gear 4 disengages from the rack 5.

[0025] Both ends of the C-shaped frame 7 are respectively located at the upper and lower ends of the rack 5 and extend beyond the rack 5. Limiting protrusions 10 are formed at both ends of the C-shaped frame 7. The gear 4 and the limiting protrusions 10 form a limiting fit for the swinging angle of the seat mounting plate 2. The limiting protrusion 10 corresponding to the upper end of the rack 5 limits the upward movement path of the gear 4, restricting the maximum angle of the seat mounting plate 2 swinging backward. The limiting protrusion 10 corresponding to the lower end of the rack 5 limits the initial position of the gear 4, preventing the gear 4 from moving downward excessively and disengaging from the rack 5. Moreover, the limiting protrusions 10 respectively support the seat mounting plate 2 at the initial position and the maximum swinging angle position, balancing the load borne by the seat mounting plate 2, and further improving the stability of the seat when the passenger is sitting on the seat. In this embodiment, the limiting and driving components are integrated together, with a simple structure, ingenious and reasonable layout, and effectively reducing the occupation of the space between the seat mounting plate 2 and the fixed base 1.

[0026] Embodiment 2, as Figure 5 shown, the left and right brackets 6 of the fixed base 1 are connected by means of a connecting plate 9. The front ends and the rear ends between the two brackets 6 are respectively connected by means of a connecting plate 9 to form a rectangular frame body. The two brackets 6 become an integral bracket by means of the connecting plate 9, effectively improving the strength and stability of the bracket 6 and the rack 5, and contributing to the extension of the service life of the seat chassis.

Claims

1. A chassis for adjusting the posture of a car seat, comprising a fixed base (1) fixedly connected to the vehicle body and a seat mounting plate (2) connected to the fixed base (1), characterized in that: The rear end of the seat mounting plate (2) is hinged to the fixed base (1), and the front end of the seat mounting plate (2) has the freedom to swing relative to the fixed base (1) with the help of a driving component. The driving component includes a driving motor (3) connected to the seat mounting plate (2), a gear (4) connected to the driving end of the driving motor (3), and a rack (5) arranged on the fixed base (1) and matching the gear (4).

2. The automobile seat posture adjustment chassis according to claim 1, characterized in that: The left and right sides of the seat mounting plate (2) are respectively provided with driving components.

3. The automobile seat posture adjustment chassis according to claim 2, characterized in that: The left and right sides of the fixed base (1) are respectively provided with brackets (6); the rear end of the seat mounting plate (2) is hinged to the bracket (6); and the rack (5) is fixedly connected to the bracket (6).

4. The automobile seat posture adjustment chassis according to claim 3, characterized in that: The bracket (6) is fixedly connected to the rack (5) by means of a C-shaped frame (7), and a support rod (8) connected to the back of the rack (5) is also arranged in the C-shaped frame (7).

5. The automobile seat posture adjustment chassis according to claim 3, characterized in that: The brackets (6) are connected with each other by means of a connecting plate (9) to form a rectangular frame.

6. The automobile seat posture adjustment chassis according to claim 1, characterized in that: The upper and lower ends of the rack (5) are respectively provided with limiting protrusions (10), and the gear (4) and the limiting protrusions (10) form a limiting fit for the swing angle of the seat mounting plate (2).

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