Angle-adjustable cushion and automobile seat

Abstract

The utility model discloses an angle-adjustable cushion and an automobile seat, the angle-adjustable cushion comprises a cushion body, and the cushion body is connected with a sliding assembly through a connecting assembly; the connecting assembly, the cushion body and the sliding assembly form a four-bar mechanism; the sliding assembly drives the two end points of the machine frame of the four-rod mechanism to horizontally move, the connecting assembly is driven to rotate in the moving process of the end points of the machine frame, and the connecting assembly can rotate to drive the cushion body to rotate. According to the utility model, the angle adjustment of the seat cushion body, the increase of the distance between the front sliding block and the rear sliding block, the clockwise rotation of the seat cushion body and the clockwise rotation of the backrest can be realized by arranging the length-adjustable four-bar mechanism, so that more sufficient sitting space can be provided for passengers; the distance between the front sliding block and the rear sliding block is reduced, the cushion body rotates anticlockwise, the backrest rotates anticlockwise and is horizontally placed, a leg supporting space can be provided for passengers in the back row, and the riding experience of the passengers is improved. The angle adjusting mode of an existing automobile seat is simplified, and the space of the automobile seat is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a seat cushion with adjustable angle and a car seat. Background Art

[0002] The car seat is mainly composed of a seat frame, a backrest movable frame, and a soft layer wrapped around the seat frame and the backrest movable frame. The seat frame includes a cushion, and the backrest can be deflected relative to the cushion to adapt to the sitting posture of the occupant. Secondly, the car seat adjustment device is composed of multiple components, including a bidirectional motor, a transmission device, and a seat adjuster, etc. The transmission device includes a transmission, a coupling, and a solenoid valve, and the seat adjuster is composed of a screw jack and a gear transmission mechanism. A coupling is set between the motor and the transmission device, and the transmission device and the seat adjuster are connected by a flexible shaft. Through the electric seat adjustment, the front and rear position, up and down height, backrest angle, etc. of the seat can be adjusted.

[0003] However, when using the existing automobile seat device, the inventor of the present application found that the inclination angle change of the seat cushion of the conventional existing automobile seat is driven by a separate bidirectional motor, and when the front and rear position of the seat cushion changes, the seat adjuster is driven to move on the slide rail by a separate bidirectional motor. The complex bidirectional motor transmission method and the control system of the bidirectional motor make the electric adjustment structure of the existing automobile seat device complicated and costly. At the same time, the placement space required for the bidirectional motor responsible for the inclination angle change and the bidirectional motor responsible for the front and rear position movement is not compact enough, which will occupy the original space in the car. Once the placement space is compacted, the complexity of the transmission device structure of the two will increase, and it will be difficult to achieve a balance between the two. Utility Model Content

[0004] The utility model provides an angle-adjustable seat cushion and a car seat to solve the problem of the complicated angle adjustment structure of the existing seat cushion. The specific technical scheme is as follows:

[0005] A seat cushion with adjustable angle comprises a seat cushion body, wherein the seat cushion body is connected to a sliding assembly via a connecting assembly; the connecting assembly, the seat cushion body and the sliding assembly form a four-bar mechanism; the sliding assembly can respectively drive the two end points of a frame of the four-bar mechanism to move horizontally, and the connecting assembly is driven to rotate during the movement of the end points of the frame, and the rotation of the connecting assembly can drive the seat cushion body to rotate.

[0006] Furthermore, the connecting assembly includes: a front connecting rod, the two ends of which are respectively connected to the seat cushion body and the sliding assembly; and a rear connecting rod, the two ends of which are respectively connected to the seat cushion body and the sliding assembly, and the sliding assembly includes: a horizontally placed slide rail; a front slider that slides along the length direction of the slide rail, the front slider is rotatably connected to one end of the front connecting rod; and a rear slider that slides along the length direction of the slide rail, the rear slider is fixedly connected to one end of the rear connecting rod, and the other end of the rear connecting rod is rotatably connected to the seat cushion body.

[0007] Furthermore, the connection point between the front slider and the front link is A, the connection point between the rear slider and the rear link is D, the connection point between the rear link and the seat cushion body is C, the front link and the seat cushion body are rotationally connected at B, when the moving distance of A is not equal to the moving distance of D, the front link rotates around A, and then the seat cushion body rotates around B, when the distance between AB is 165±5mm and the distance between BC is 350±5mm, the distance between AD changes by 8.7mm, and the seat cushion body rotates around B by 1°.

[0008] A car seat, comprising: the above-mentioned seat cushion; and a backrest rotatably connected to the seat cushion body, the backrest being capable of independently adjusting an angle relative to the seat cushion body, wherein in an initial state of the car seat, the angle between the seat cushion body and the horizontal plane is 11°, when the distance between AD increases by 24 mm, the angle between the seat cushion body and the horizontal plane is 8.3°; when the distance between AD decreases by 134 mm, the angle between the seat cushion body and the horizontal plane is 26.4°.

[0009] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0010] The utility model realizes the angle adjustment of the seat cushion body by setting a four-bar mechanism with adjustable length. When the distance between the front slider and the rear slider increases, the seat cushion body rotates clockwise, and the backrest rotates clockwise, which can provide passengers with more sufficient riding space and a more comfortable riding experience; when the distance between the front slider and the rear slider decreases, the seat cushion body rotates counterclockwise, and the backrest rotates counterclockwise and is placed horizontally, it can provide leg support space for rear passengers and improve their riding experience. Only the front slider and the rear slider need to be adjusted to achieve the angle adjustment of the seat cushion body within a larger range, which simplifies the angle adjustment method of the existing car seat and also tightens the space of the car seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a car seat according to an embodiment of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the backrest in the folded state of the embodiment of the utility model;

[0013] Figure 3 This is a schematic diagram of the zero gravity state structure of an embodiment of the utility model.

[0014] In the figure: 1. seat cushion body; 2. connecting assembly; 3. sliding assembly; 4. backrest; 21. front connecting rod; 22. rear connecting rod; 31. front sliding block; 32. rear sliding block; 33. sliding rail. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] Embodiment 1

[0018] like Figure 1 As shown, the embodiment of the utility model includes a cushion body 1, which is connected to a sliding component 3 via a connecting component 2; the connecting component 2, the cushion body 1 and the sliding component 3 form a four-bar mechanism; the sliding component 3 can respectively drive the two end points of the frame of the four-bar mechanism to move horizontally, and the connection component 2 is driven to rotate during the movement of the end points of the frame, and the rotation of the connection component 2 can drive the cushion body 1 to rotate.

[0019] Specifically, the sliding component 3 is rotationally connected to the connecting component 2, and the connecting component 2 is rotationally connected to the cushion body 1. The sliding component 3 drives one end of the connecting component 2 to move horizontally. When the distance between the sliding components 3 changes during the movement, the connecting component 2 can rotate around the connection point with the sliding component 3. The rotating connecting component 2 causes the angle of the cushion body 1 relative to the horizontal plane to change.

[0020] Furthermore, the connecting assembly 2 comprises: a front connecting rod 21, two ends of which are respectively connected to the seat cushion body 1 and the sliding assembly 3; and a rear connecting rod 22, two ends of which are respectively connected to the seat cushion body 1 and the sliding assembly 3.

[0021] Specifically, in the embodiment of the present utility model, “front” and “rear” do not limit the positional relationship of the connecting component 2 , but define the position of the connecting component 2 relative to the cushion body 1 .

[0022] The initial position of the front connecting rod 21 is that the front connecting rod 21 is vertically downward, and the front connecting rod 21 is rotatably connected to the sliding assembly 3, so that when the sliding assembly 3 moves, the front connecting rod 21 can continue to rotate around the connection point between the two.

[0023] Specifically, when the distance between the sliding components 3 increases, the front link 21 rotates clockwise around the connection point between the two, thereby causing the cushion body 1 to rotate clockwise around the connection point between the front link 21 and it, thereby causing the cushion body 1 to rotate clockwise relative to the horizontal plane; and, when the distance between the sliding components 3 decreases, the front link 21 rotates counterclockwise around the connection point between the two, thereby causing the cushion body 1 to rotate counterclockwise around the connection point between the front link 21 and it, thereby causing the cushion body 1 to rotate counterclockwise relative to the horizontal plane.

[0024] Secondly, the rear connecting rod 22 is fixedly connected to the sliding assembly 3, and the rear connecting rod 22 is rotatably connected to the cushion body 1, so that when the cushion body 1 rotates, it rotates around the connection point between the two.

[0025] Furthermore, the sliding assembly 3 includes: a sliding rail 33; a front slider 31 that slides along the length direction of the sliding rail 33, and the front slider 31 is rotatably connected to one end of the front connecting rod 21; and a rear slider 32 that slides along the length direction of the sliding rail 33, and the rear slider 32 is fixedly connected to one end of the rear connecting rod 22, and the other end of the rear connecting rod 22 is rotatably connected to the seat cushion body 1.

[0026] Specifically, the slide rail 33 is installed on a horizontal plane. When the front slider 31 moves forward and the rear slider 32 is stationary or moves backward, the distance between the sliding components 3 increases, and the cushion body 1 rotates clockwise relative to the horizontal plane; when the front slider 31 moves backward and the rear slider 32 moves forward or is stationary, the distance between the sliding components 3 decreases, and the cushion body 1 rotates counterclockwise relative to the horizontal plane.

[0027] Secondly, the rear connecting rod 22 and the rear slider 32 are fixedly connected. When the rear slider 32 drives the rear connecting rod 22 to move, the moving distance will be directly reflected in the moving distance of the connection point between the rear connecting rod 22 and the seat cushion body 1, so that the moving distance of the front slider 31 and the rear slider 32 does not need to be very large, and the rotation angle of the seat cushion body 1 can meet the requirements, thereby reducing the space required for seat adjustment.

[0028] like Figure 2 As shown, further, the connection point between the front slider 31 and the front link 21 is A, the connection point between the rear slider 32 and the rear link 22 is D, the front link 21 and the cushion body 1 are rotatably connected at B, and the connection point between the rear link 22 and the cushion body 1 is C. When the moving distance of A is not equal to the moving distance of D, the front link 21 rotates around A, and then the cushion body 1 rotates around B. When the distance between AB is 165±5mm and the distance between BC is 350±5mm, A moves 8.7mm, and the cushion body 1 rotates 1 degree around C.

[0029] Preferably, the specific dimensions of the four-bar mechanism are as follows: when the distance between AB is 166 mm, the distance between BC is 349 mm, the distance between AD changes by 8.7 mm, and the seat cushion body 1 rotates by 1 degree relative to the horizontal plane.

[0030] Embodiment 2

[0031] like Figures 1 to 3 As shown, the car seat includes: the seat cushion in the first embodiment; and a backrest 4 rotatably connected to the seat cushion body, and the backrest 4 can independently adjust its angle relative to the seat cushion body 1.

[0032] Specifically, the car seat has three states, one is the initial state, the second is the state where the backrest 4 is laid down, and the third is the zero gravity state. In the initial state, the angle between the cushion body 1 and the horizontal plane is 11°, and the car seat is in a normal sitting position; when the distance between AD increases by 24mm, the angle between the cushion body 1 and the horizontal plane is 8.3°, and the backrest 4 can rotate counterclockwise, so that the back of the backrest 4 can be placed horizontally, thereby providing sufficient space for rear passengers to improve comfort; when the distance between AD decreases by 134mm, the angle between the cushion body 1 and the horizontal plane is 26.4°, and the backrest 4 rotates clockwise, so that the angle between the passenger's torso and thigh is 120±10°, the angle between the thigh and calf is 130±10°, and the knee is at the same height as the heart, achieving more sufficient riding space and a more comfortable and casual zero gravity sitting position and experience.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0034] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A cushion with adjustable angle, comprising a cushion body (1), characterized in that: The seat cushion body (1) is connected to a sliding component (3) via a connecting component (2); The connecting assembly (2), the cushion body (1) and the sliding assembly (3) form a four-bar mechanism; The sliding assembly (3) can respectively drive the two end points of the frame of the four-bar mechanism to move horizontally, and the movement of the end points of the frame drives the connecting assembly (2) to rotate, and the rotation of the connecting assembly (2) can drive the seat cushion body (1) to rotate.

2. The seat cushion according to claim 1, characterized in that: The connection component (2) comprises: A front connecting rod (21), the two ends of which are respectively connected to the seat cushion body (1) and the sliding assembly (3); and A rear connecting rod (22), the two ends of which are respectively connected to the seat cushion body (1) and the sliding assembly (3).

3. The seat cushion according to claim 2, characterized in that: The sliding assembly (3) comprises: A horizontally placed slide rail (33); A front sliding block (31) sliding along the length direction of the sliding rail (33), the front sliding block (31) being rotatably connected to one end of the front connecting rod (21); and A rear slider (32) slides along the length direction of the slide rail (33), the rear slider (32) is fixedly connected to one end of the rear connecting rod (22), and the other end of the rear connecting rod (22) is rotatably connected to the seat cushion body (1).

4. The seat cushion according to claim 3, characterized in that: The connection point between the front slider (31) and the front connecting rod (21) is A, the connection point between the rear slider (32) and the rear connecting rod (22) is D, the connection point between the rear connecting rod (22) and the seat cushion body (1) is C, the front connecting rod (21) and the seat cushion body (1) are rotationally connected at B, and when the moving distance of A is not equal to the moving distance of D, the front connecting rod (21) rotates around A, and then the seat cushion body (1) rotates around B.

5. The seat cushion according to claim 4, characterized in that: When the distance between AB is 165±5 mm and the distance between BC is 350±5 mm, the distance between AD changes by 8.7 mm, and the cushion body (1) rotates around B by 1°.

6. A car seat, characterized in that: The car seat comprises: The seat cushion as claimed in claim 5; and A backrest (4) is rotatably connected to the seat cushion body (1), and the backrest (4) can independently adjust the angle relative to the seat cushion body (1).

7. The vehicle seat according to claim 6, characterized in that: In the initial state of the automobile seat, the angle between the seat cushion body (1) and the horizontal plane is 11°; when the distance between AD increases by 24 mm, the angle between the seat cushion body (1) and the horizontal plane is 8.3°; when the distance between AD decreases by 134 mm, the angle between the seat cushion body (1) and the horizontal plane is 26.4°.

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