Driving mechanism built-in automobile seat small table board

Abstract

The application discloses a kind of drive mechanism built-in type car seat small table board, including small table board body, the small table board body is connected with transmission assembly, the transmission assembly is used to make small table board body can be reversibly assembled in seat backrest rear side, the small table board body inside is integrated with drive mechanism, the drive mechanism is used to drive transmission assembly movement, to make small table board body be reversibly switched between unfolding position and folding position.The beneficial effects of the present application are: the drive mechanism is built-in in the small table board inside, does not occupy seat backrest internal space, guarantees the comfort of riding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seat parts, in particular to a drive mechanism built-in type automobile seat small table board. BACKGROUND

[0002] With the improvement of people's living standards, consumers have higher and higher requirements for the quality of automobile interiors. In order to meet the diversified needs of consumers for automobile interiors, more and more vehicle models begin to be equipped with seat small table boards as standard configurations or optional parts. The seat small table board can improve the comfort and convenience of riding, and is usually installed behind the front seats of the automobile, is foldable, is flexible to use, and can be used for work, reading, entertainment and other purposes.

[0003] The traditional electric small table board drive mechanism is usually arranged inside the backrest, and the mechanism occupies a large space, which greatly affects the arrangement of other modules inside the backrest. In addition, it also causes the thickness of the backrest foam to be reduced, affecting the comfort of riding. SUMMARY

[0004] Therefore, the present application provides a drive mechanism built-in type automobile seat small table board, which solves the problem of large space occupied by the drive mechanism arranged inside the backrest.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A drive mechanism built-in type automobile seat small table board, comprising a small table board body, a transmission assembly connected to the small table board body, the transmission assembly being used to make the small table board body reversibly assembled behind the seat backrest, a drive mechanism integrated inside the small table board body, the drive mechanism being used to drive the transmission assembly to move, so as to reversibly switch the small table board body between the unfolded position and the folded position.

[0007] By adopting the above structure, the drive mechanism is integrated inside the small table board, connected to the backrest rear side through the transmission assembly, does not occupy the space inside the backrest, does not affect the arrangement of the modules inside the seat backrest, and ensures the comfort of riding.

[0008] As a preferred, the drive mechanism comprises a slider reversibly installed in the small table board body and a synchronous rod rotatably installed in the small table board body, a rocker arm extending radially outward is fixed on the synchronous rod, a connecting rod is hinged to the end of the rocker arm, the other end of the connecting rod is rotatably connected to the slider, and the synchronous rod is connected to the transmission assembly; the drive mechanism further comprises a power assembly for driving the slider to move reversibly. By adopting the above structure, the drive mechanism is arranged along the horizontal direction of the small table board, and the structure is compact.

[0009] As preferred: the power assembly comprises a motor fixed in the small table board body, a screw rod driven to rotate by the motor, and the sliding block is threadedly connected with the screw rod.

[0010] As preferred: the small table board body has a hollow mounting chamber inside, two groups of sliding grooves parallel to the length direction of the screw rod are arranged inside the hollow mounting chamber, and the two ends of the sliding block are slidingly arranged in the sliding grooves.

[0011] As preferred: the transmission assembly comprises a mounting piece, and a first transmission rod and a second transmission rod rotatably connected at two ends of the mounting piece, one end of the first transmission rod away from the mounting piece is rotatably connected to the small table board body, and one end of the second transmission rod away from the mounting piece is fixedly connected to the synchronous rod, and the mounting piece is used for being fixedly mounted at the rear side of the seat back.

[0012] As preferred: a torsional spring is sleeved on the synchronous rod, and the two ends of the torsional spring are supported on the rocker arm and the small table board body respectively.

[0013] As preferred: the rocker arm and the connecting rod are both two groups and symmetrically arranged on both sides of the sliding block.

[0014] As preferred: the synchronous rod is a square shaft, a sleeve is fixedly sleeved on the middle part of the synchronous rod, and the two groups of rocker arms are arranged on the sleeve.

[0015] As preferred: the first transmission rod and the second transmission rod are both two groups and symmetrically arranged on both sides of the small table board body in the width direction.

[0016] As preferred: the small table board body is provided with accommodating grooves on both sides, the first transmission rod and the second transmission rod penetrate through the accommodating grooves, and when the small table board body is in the folded position, the first transmission rod and the second transmission rod are located in the accommodating grooves.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] 1. The driving mechanism built-in type automobile seat small table board provided by the present application is arranged inside the small table board in the horizontal direction of the small table board body, does not occupy the internal space of the seat back, does not affect the arrangement of the internal modules of the seat back, and guarantees the comfort of sitting.

[0019] 2. The internal transmission of the small table board is compact, the structure is compact, and the rear space is not compressed.

[0020] 3, Small table board is driven by screw rod, can follow horizontal, hover in any position, and can meet greater bearing force and abuse force. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 For the structural diagram of the application;

[0022] Figure 2 For the schematic diagram of small table board body 1 in the folding position;

[0023] Figure 3 For the structural diagram of the inside of small table board body 1;

[0024] Figure 4 For the structural diagram of driving mechanism 2 and transmission assembly 3;

[0025] Figure 5 For the schematic diagram of showing the containing groove 12. DETAILED DESCRIPTION

[0026] The application is further illustrated below in combination with examples and drawings.

[0027] As Figure 1 and Figure 3 A driving mechanism built-in type automobile seat small table board, comprising a small table board body 1, the small table board body 1 is connected with a transmission assembly 3, the transmission assembly 3 is used for making the small table board body 1 reversibly assembled behind the seat back, the small table board body 1 is integrated with a driving mechanism 2 inside, the driving mechanism 2 is used for driving the transmission assembly 3 to move, to make the small table board body 1 switch over between the unfolded position and the folding position.

[0028] As Figure 4 indicated, the driving mechanism 2 comprises a slider 23 and a synchronous rod 25, wherein the synchronous rod 25 is a square shaft, rotatably installed in the small table board body 1 along the length direction of the small table board body 1, a sleeve 27 is fixedly sleeved in the middle of the synchronous rod 25, a rocker arm 242 is arranged on the sleeve 27 along the radial direction thereof, the rocker arm 242 is hingedly connected with a connecting rod 241 at the end portion, and the other end of the connecting rod 241 is rotatably connected with the slider 23. The small table board body 1 has a hollow installation chamber 11 inside, two groups of sliding grooves 111 parallel to the length direction of the screw rod are arranged inside the hollow installation chamber 11, and the slider 23 is reciprocally movably installed at the end portions of the two groups of sliding grooves 111. The small table board body 1, the slider 23, the connecting rod 241 and the rocker arm 242 constitute a four-bar linkage mechanism. In order to balance the force of the slider 23, the rocker arm 242 and the connecting rod 241 are both two groups, symmetrically arranged on the two sides of the slider 23. The synchronous rod 25 is sleeved with a torsional spring 26, the two ends of the torsional spring 26 are respectively supported on the rocker arm 242 and the small table board body 1, so that the driving mechanism can operate more stably and without shaking.

[0029] As shown in Figure 4 , the driving mechanism 2 further comprises a power assembly for driving the slider 23 to reciprocate, in the embodiment, the power assembly comprises a motor 21 fixed in the small table body 1 and a screw rod 22 driven to rotate by the motor 21, the screw rod 22 is arranged at the middle position of the synchronous rod 25 along the width direction of the small table body 1, the slider 23 is threadedly sleeved with the screw rod 22 and moves along the length direction of the screw rod 22. Driven by the screw rod 22, not only can be closely installed inside the small table body 1, but also can be driven horizontally, hover in any position under force, and can meet greater bearing force and abuse force.

[0030] As shown in Figure 1 and Figure 4 , the synchronous rod 25 is connected with the transmission assembly 3, the transmission assembly 3 comprises a mounting piece 33 and a first transmission rod 31 and a second transmission rod 32 rotatably connected at both ends of the mounting piece 33, as shown in Figure 2 , the mounting piece 33 is used for fixedly mounting at the rear side of the seat back, the first transmission rod 31 and the second transmission rod 32 are both two groups and symmetrically arranged at both sides of the width direction of the small table body 1. The end of the first transmission rod 31 away from the mounting piece 33 is rotatably connected to the small table body 1, and the end of the second transmission rod 32 away from the mounting piece 33 is fixedly connected to the synchronous rod 25. The first transmission rod 31, the second transmission rod 32, the small table body 1 and the mounting piece 33 constitute a four-bar linkage mechanism, and both sides of the small table body 1 are provided with accommodating grooves 12, the first transmission rod 31 and the second transmission rod 32 penetrate through the accommodating grooves 12, and when the small table body 1 is in the folded position, the first transmission rod 31 and the second transmission rod 32 are located in the accommodating grooves 12.

[0031] As shown in Figure 2 , when the small table body 1 is in the folded position, it is close to the seat back to avoid compressing the rear seat space. As shown in Figure 3 and Figure 4 , when the small table body 1 is in the unfolded position, first, the motor 21 drives the screw rod 22 to rotate, the slider 23 threadedly cooperates with the screw rod 22, and due to the limitation of the sliding groove 111 at both ends, the slider 23 reciprocates along the length direction of the screw rod 22, the slider 23 is connected with the connecting rod 241 and the rocker arm 242 at both ends, forming power transmission to the synchronous rod 25, driving the synchronous rod 25 to rotate, and the small table body 1 is unfolded relative to the seat back under the transmission of the two groups of the first connecting rod 31 and the second transmission rod 32 connected at both ends of the synchronous rod 25. Through the small and compact structure design, the large angle adjustment of the small table body 1 is realized, and the driving mechanism 2 is integrated inside the small table body 1 with little increase in the thickness of the small table body 1.

[0032] As shown in Figure 3As shown, in the embodiment, the driving mechanism 2 is arranged inside the small table plate body 1 along the horizontal direction of the small table plate body 1, and the thickness of the small table plate body 1 can be controlled within 45 mm. The small table plate body 1 is connected to the rear side of the seat back through the transmission assembly 3, does not occupy the internal space of the seat back, does not affect the arrangement of the internal module of the seat back, and guarantees the comfort of riding.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present application, and those skilled in the art can make various similar modifications under the inspiration of the present application without departing from the purpose and scope of the present application. Such changes fall within the scope of the present application.

Claims

1. A car seat tray with a built-in drive mechanism, comprising a tray body (1), characterized in that: The small table body (1) is connected to a transmission component (3). The transmission component (3) is used to allow the small table body (1) to be flipped and mounted on the back of the seat. The small table body (1) is internally equipped with a drive mechanism (2). The drive mechanism (2) is used to drive the transmission component (3) to move so that the small table body (1) can flip and switch between the unfolded position and the folded position. The drive mechanism (2) includes a slider (23) reciprocally mounted in the small table body (1) and a synchronizing rod (25) rotatably mounted in the small table body (1). A rocker arm (242) extending radially outward is fixed on the synchronizing rod (25). A connecting rod (241) is hinged to the end of the rocker arm (242). The other end of the connecting rod (241) is rotatably connected to the slider (23). The synchronizing rod (25) is connected to the transmission assembly (3). The small table body (1) has a hollow mounting chamber (11) inside. The hollow mounting chamber (11) is provided with two sets of sliding grooves (111) parallel to the length direction of the lead screw. The two ends of the slider (23) are slidably disposed in the sliding grooves (111).

2. The car seat tray with built-in drive mechanism according to claim 1, characterized in that: The drive mechanism (2) also includes a power component for driving the slider (23) to reciprocate.

3. The car seat tray with built-in drive mechanism according to claim 2, characterized in that: The power assembly includes a motor (21) fixed inside the small table body (1) and a lead screw (22) driven to rotate by the motor (21). The slider (23) is threadedly connected to the lead screw (22).

4. The car seat tray with built-in drive mechanism according to claim 1, characterized in that: The transmission assembly (3) includes a mounting component (33) and a first transmission rod (31) and a second transmission rod (32) rotatably connected to both ends of the mounting component (33). The end of the first transmission rod (31) away from the mounting component (33) is rotatably connected to the small table body (1), and the end of the second transmission rod (32) away from the mounting component (33) is fixedly connected to the synchronizing rod (25). The mounting component (33) is used to be fixedly installed on the back of the seat.

5. The car seat tray with built-in drive mechanism according to claim 1, characterized in that: A torsion spring (26) is sleeved on the synchronizing rod (25), and the two ends of the torsion spring (26) are respectively supported on the rocker arm (242) and the small table body (1).

6. The car seat tray with built-in drive mechanism according to claim 1, characterized in that: The rocker arm (242) and the connecting rod (241) are both in two sets and are symmetrically arranged on both sides of the slider (23).

7. A car seat tray with a built-in drive mechanism according to claim 1, characterized in that: The synchronizing rod (25) is a square shaft with a sleeve (27) fixedly fitted in its middle, and the two sets of rocker arms (242) are mounted on the sleeve (27).

8. A car seat tray with a built-in drive mechanism according to claim 4, characterized in that: The first transmission rod (31) and the second transmission rod (32) are both in two sets and are symmetrically arranged on both sides of the width direction of the small table body (1).

9. A car seat tray with a built-in drive mechanism according to claim 4, characterized in that: The small table body (1) is provided with receiving grooves (12) on both sides. The first transmission rod (31) and the second transmission rod (32) pass through the receiving grooves (12). When the small table body (1) is in the folded position, the first transmission rod (31) and the second transmission rod (32) are located in the receiving grooves (12).

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