Table plate assembly and automobile seat

Abstract

The utility model relates to the technical field of automobile seats, and discloses a table plate assembly and an automobile seat, the table plate assembly is configured on a backrest of the automobile seat, and the table plate assembly comprises a mounting bracket, a table plate, a table plate and a table plate, the table plate assembly is movably arranged on the mounting bracket and comprises a table plate, and the table plate has an unfolded state and a folded state; the support driving module is arranged on the backrest and connected with the mounting support, and the support driving module can drive the mounting support to rotate; when the table board is switched to the unfolded state, the support driving module can drive the mounting support to rotate so as to adjust the angle of the table board relative to the horizontal plane. The folding table has the advantages that after the angle of the backrest is adjusted, the table plate can be adaptively leveled, and the table plate is good in rigidity and small in shaking amount when unfolded.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle seats, in particular to a table assembly and a vehicle seat. Background Art

[0002] A small table is arranged on the back side of the backrest of a vehicle seat, which is convenient for rear passengers to use and can provide a comfortable working and entertainment space. When in use, the user unfolds the small table backward, and the small table is placed horizontally at the back; when not in use, it can be folded on the back side of the backrest.

[0003] By adjusting the angle of the backrest relative to the seat cushion, the usage requirements of users in different scenarios (such as zero-gravity mode) can be met. In the designed state of the vehicle seat, the small table is in a horizontal state after being unfolded. When the inclination angle of the backrest is rotated, the small table on the back side of the backrest will also tilt accordingly and cannot be adaptively leveled for the convenience of the user; or the rotation and leveling of the table are controlled by a single-rotating shaft motor, but the rigidity of the table is poor, and it is prone to instability such as shaking or wobbling. Summary of the Utility Model

[0004] Aiming at the above deficiencies existing in the prior art, the technical problem to be solved by the utility model is to provide a table assembly with an adaptable leveling function, good rigidity and small shaking amount when the table is unfolded, and a vehicle seat.

[0005] The technical solution adopted by the utility model to solve its technical problems is to provide a table assembly configured on the backrest of a vehicle seat, including:

[0006] A mounting bracket rotatably arranged on the backrest;

[0007] A table assembly movably arranged on the mounting bracket, including a table, and the table has an unfolded state and a folded state;

[0008] A bracket drive module arranged on the backrest and connected to the mounting bracket, and the bracket drive module can drive the mounting bracket to rotate;

[0009] When the table is switched to the unfolded state, the bracket drive module can drive the mounting bracket to rotate to adjust the angle of the table relative to the horizontal plane.

[0010] Further, the mounting bracket includes a first bracket, a second bracket and a connecting rotating shaft. The first bracket and the second bracket are arranged at intervals. The connecting rotating shaft is connected between the first bracket and the second bracket, and the connecting rotating shaft is rotatably arranged on the backrest;

[0011] The bracket driving module is connected to the connecting rotating shaft, and can drive the connecting rotating shaft to rotate, and the first bracket and the second bracket are linked with the connecting rotating shaft;

[0012] The tabletop assembly is movably arranged on the first bracket and the second bracket.

[0013] Further, a connecting plate is provided on the connecting rotating shaft;

[0014] The bracket driving module is configured as a lead screw motor, and the lead screw of the lead screw motor is connected to the connecting plate. The lead screw motor drives the connecting rotating shaft to rotate through the telescopic movement of the lead screw.

[0015] Further, a pull rod is provided between the first bracket and the second bracket, and two ends of the pull rod are respectively fixedly connected to the first bracket and the second bracket.

[0016] Further, the tabletop assembly further includes a first upper connecting rod, a second upper connecting rod, a first lower connecting rod, and a second lower connecting rod. One ends of the four are all rotatably connected to the tabletop;

[0017] One ends of the first upper connecting rod and the first lower connecting rod, which are far away from the tabletop, are rotatably arranged on the first bracket; one ends of the second upper connecting rod and the second lower connecting rod, which are far away from the tabletop, are rotatably arranged on the second bracket.

[0018] Further, the first upper connecting rod, the second upper connecting rod, the first lower connecting rod, and the second lower connecting rod are rotatably connected to the tabletop and jointly form a double-rocker mechanism;

[0019] When the tabletop is in the unfolded state: the lower surface of the first upper connecting rod abuts against the upper surface of the first lower connecting rod, and / or the lower surface of the second upper connecting rod abuts against the upper surface of the second lower connecting rod.

[0020] Further, the tabletop assembly further includes a tabletop driving motor, and the tabletop driving motor is installed on the installation bracket and can drive the tabletop to switch between the unfolded state and the folded state.

[0021] Further, two first mounting seats are arranged on the backrest at intervals. One end of the connecting rotating shaft is rotatably arranged on one of the first mounting seats, and the other end of the connecting rotating shaft is rotatably arranged on the other first mounting seat.

[0022] Further, a second mounting seat is arranged on the backrest, and the lead screw motor is installed on the second mounting seat.

[0023] The utility model adopts a technical solution to solve the technical problem, and further provides a car seat, comprising a backrest, on which the above-mentioned table board assembly is arranged.

[0024] Compared with the prior art, the utility model has at least the following beneficial effects:

[0025] In the utility model, a mounting bracket and a bracket driving module are provided, and the mounting bracket is rotatably provided on the backrest, and the bracket driving module can drive the mounting bracket to rotate. The table board assembly is movably provided on the mounting bracket. During use, after the inclination angle of the backrest is adjusted, the table board is also inclined when unfolded, and the mounting bracket can be driven to rotate by the bracket driving module, and the angle of the table board relative to the horizontal plane can be adjusted to restore the table board to be parallel to the horizontal plane (i.e., a zero-degree angle), so as to achieve the purpose of adaptive leveling of the table board, so as to facilitate users to use the table board in various scenarios. And when the table board is unfolded, the upper and lower connecting rods are counteracted to limit the position of the table board, and the position of the table board can be guaranteed to be reliable after the table board is leveled, and the rigidity of the table board is good and the shaking amount is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of the table board assembly of the utility model when it is installed on the backrest (the table board is unfolded);

[0027] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0028] Figure 3 for Figure 1 Schematic diagram of the plane;

[0029] Figure 4 for Figure 1 Schematic diagram of the structure after removing the backrest and table top;

[0030] Figure 5 for Figure 2 Schematic diagram of the structure after removing the backrest and table top;

[0031] Figure 6 for Figure 3 Schematic diagram of the structure after removing the backrest and table top.

[0032] In the figure:

[0033] 1. backrest; 11. first mounting seat; 12. second mounting seat;

[0034] 2. Mounting bracket; 21. First bracket; 22. Second bracket; 23. Connecting shaft; 230. Connecting plate; 24. Pull rod;

[0035] 3. Tabletop assembly; 30. Tabletop; 31. First upper connecting rod; 32. Second upper connecting rod; 33. First lower connecting rod; 34. Second lower connecting rod; 35. Tabletop drive motor; 36. Gear shaft;

[0036] 4. Bracket drive module; 40. Lead screw. Detailed implementation manners

[0037] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indication will also change accordingly.

[0039] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0042] Such as Figures 1 - 3As shown in the figure, it is a schematic installation diagram of the table board assembly on the back side of the backrest 1 of the vehicle seat, and at this time the table board 30 is in the unfolded state. The table board assembly of this embodiment is configured on the back side of the backrest 1 of the vehicle seat, which is convenient for the rear passengers to use the table board 30. The table board assembly mainly includes: a mounting bracket 2, a table board assembly 3 and a bracket driving module 4. The mounting bracket 2 mainly includes a first bracket 21, a second bracket 22, a connecting rotating shaft 23 and a pull rod 24. The table board assembly 3 mainly includes a table board 30, a first upper connecting rod 31, a second upper connecting rod 32, a first lower connecting rod 33, a second lower connecting rod 34, a table board driving motor 35 and a gear shaft 36.

[0043] The entire mounting bracket 2 is rotatably arranged on the back side of the backrest 1. Specifically, the mounting bracket 2 of this embodiment includes a first bracket 21, a second bracket 22, a connecting rotating shaft 23 and a pull rod 24. The first bracket 21 and the second bracket 22 are arranged at intervals. The connecting rotating shaft 23 is connected between the first bracket 21 and the second bracket 22, and the connecting rotating shaft 23 is rotatably arranged on the backrest 1. When the connecting rotating shaft 23 rotates, it can drive the first bracket 21 and the second bracket 22 to rotate in cooperation. Among them, two first mounting seats 11 are arranged at intervals on the backrest 1. It can be understood that the two first mounting seats 11 are part of the backrest 1. One end of the connecting rotating shaft 23 is rotatably arranged on one first mounting seat 11, and the other end of the connecting rotating shaft 23 is rotatably arranged on the other first mounting seat 11. One end of the pull rod 24 is fixedly connected to the first bracket 21, and the other end of the pull rod 24 is fixedly connected to the second bracket 22, further ensuring the synchronism of the rotation of the first bracket 21 and the second bracket 22. Both ends of the pull rod 24 and both ends of the connecting rotating shaft 23 are D-shaped, and the first bracket 21 and the second bracket 22 have D-shaped holes adapted thereto. The D-shaped ends are arranged in the D-shaped holes to ensure that torque can be transmitted. When the bracket driving module 4 drives the connecting rotating shaft 23 to rotate, the entire mounting bracket 2 can be rotated.

[0044] The table board assembly 3 is movably arranged on the mounting bracket 2, specifically movably arranged on the first bracket 21 and the second bracket 22. It includes a table board 30, a first upper connecting rod 31, a second upper connecting rod 32, a first lower connecting rod 33, a second lower connecting rod 34, a table board driving motor 35 and a gear shaft 36. And the table board 30 has an unfolded state and a retracted state on the backrest 1. In the designed position of the vehicle seat, when the table board 30 is in the unfolded state, the table board 30 is horizontal or substantially horizontal. When the table board 30 is in the retracted state, the table board 30 is attached to the back surface of the backrest 1 without occupying extra space.

[0045] The bracket driving module 4 is arranged on the backrest 1 and connected to the mounting bracket 2. The bracket driving module 4 can drive the mounting bracket 2 to rotate. During use, when the table board 30 is switched to the unfolded state, the bracket driving module 4 can drive the mounting bracket 2 to rotate to adjust the angle of the table board 30 relative to the horizontal plane. That is, after the angle of the backrest 1 of the vehicle seat is adjusted, the bracket driving module can drive the mounting bracket 2 to rotate, so that the table board 30 returns to the horizontal state for the convenience of the user.

[0046] Specifically, as Figures 1 - 2 and Figures 4 - 5 shown, the bracket driving module 4 is connected to the connecting rotating shaft 23 and can drive the connecting rotating shaft 23 to rotate, and the first bracket 21 and the second bracket 22 are linked with the connecting rotating shaft 23. Among them, a connecting plate 230 is provided on the connecting rotating shaft 23, and the connecting plate 230 can be regarded as a part of the rotating shaft. The bracket driving module 4 of this embodiment is preferably configured as a screw motor, and the screw 40 of the screw motor is rotatably connected to the connecting plate 230. The screw motor drives the connecting rotating shaft 23 to rotate through the telescopic movement of the screw 40, and then makes the mounting bracket 2 rotate to drive the table board assembly 3 to move. A second mounting seat 12 is arranged on the backrest 1, and the second mounting seat 12 can be regarded as a part of the backrest 1, and the screw motor is mounted on the second mounting seat 12.

[0047] More specifically, one ends of the first upper link 31, the second upper link 32, the first lower link 33 and the second lower link 34 are all rotatably connected to the table board 30 and jointly form a double-rocker mechanism. The ends of the first upper link 31 and the first lower link 33 far from the table board 30 are rotatably arranged on the first bracket 21; the ends of the second upper link 32 and the second lower link 34 far from the table board 30 are rotatably arranged on the second bracket 22. The table board driving motor 35 is mounted on the mounting bracket 2. A driving gear is provided on the table board driving motor 35. A gear shaft 36 is provided on the mounting bracket 2. The gear on the gear shaft 36 meshes with the driving gear, and the gear shaft 36 is connected to the first lower link 33. The table board driving motor 35 can drive the first lower link 33, and then make the table board 30 switch between the unfolded state and the folded state.

[0048] As Figure 3 and Figure 6 shown, during use, when the table board 30 is in the unfolded state: the lower surface of the first upper link 31 abuts against the upper surface of the first lower link 33, and the lower surface of the second upper link 32 abuts against the upper surface of the second lower link 34, ensuring the structural stability of the table board 30 when it is unfolded and having a small shaking amount.

[0049] Preferably, the horizontal adaptive adjustment of the table board 30 can be realized by the control module of the vehicle communicating with the screw motor and the table board driving motor 35.

[0050] When the tabletop 30 is in the retracted state, the tabletop drive motor 35 drives the driving gear on its output shaft to rotate. The driving gear meshes with the gear shaft 36, causing the first lower connecting rod 33 to rotate. The first lower connecting rod 33 drives the tabletop 30 to unfold backward until the lower surface of the first upper connecting rod 31 abuts against the upper surface of the first lower connecting rod 33, and the lower surface of the second upper connecting rod 32 abuts against the upper surface of the second lower connecting rod 34, and the tabletop 30 is fully unfolded. Conversely, when the tabletop drive motor 35 rotates in the reverse direction, the tabletop 30 can be fully retracted to the backrest 1.

[0051] When the angle of the backrest 1 of the vehicle seat is adjusted from the designed position, after the tabletop 30 is unfolded, it is in an inclined state relative to the horizontal plane. The lead screw motor drives the lead screw 40 to perform telescopic movement. The lead screw 40 causes the connecting rotating shaft 23 to rotate, that is, the entire mounting bracket 2 rotates. The tabletop assembly 3 on the mounting bracket 2 moves along with the movement of the mounting bracket 2 until the tabletop 30 returns to the horizontal state again, and the lead screw motor stops. At this time, the lower surface of the first upper connecting rod 31 still abuts against the upper surface of the first lower connecting rod 33, and the lower surface of the second upper connecting rod 32 still abuts against the upper surface of the second lower connecting rod 34.

[0052] In this solution, the mounting bracket 2 and the bracket drive module 4 are provided, and the mounting bracket 2 is rotatably arranged on the backrest 1. The bracket drive module 4 can drive the mounting bracket 2 to rotate. The tabletop assembly 3 is movably arranged on the mounting bracket 2. During use, when the inclination angle of the backrest 1 is adjusted, when the tabletop 30 is unfolded, it is also in an inclined state. The bracket drive module 4 can be used to drive the mounting bracket 2 to rotate to adjust the angle of the tabletop 30 relative to the horizontal plane, so that the tabletop 30 can be restored to be parallel to the horizontal plane (i.e., a zero-degree angle), achieving the purpose of adaptive leveling of the tabletop 30 to facilitate the user to use the tabletop 30 in various scenarios. And when the tabletop 30 is unfolded, the position of the tabletop 30 is restricted by the upper and lower connecting rods abutting against each other. After the tabletop 30 is leveled, the position of the tabletop 30 can also be ensured to be reliable. The tabletop 30 has good rigidity and small shaking amount.

Claims

1. A tabletop assembly, arranged on the backrest of a car seat, characterized in that: include: A mounting bracket rotatably disposed on the backrest; A table top assembly, movably arranged on the mounting bracket, comprises a table top, and the table top has an unfolded state and a folded state; A bracket driving module is arranged on the backrest and connected to the mounting bracket, and the bracket driving module can drive the mounting bracket to rotate; When the table top is switched to the unfolded state, the bracket driving module can drive the mounting bracket to rotate so as to adjust the angle of the table top relative to the horizontal plane.

2. The table top assembly according to claim 1, characterized in that: The mounting bracket includes a first bracket, a second bracket and a connecting shaft, the first bracket and the second bracket are arranged at an interval, the connecting shaft is connected between the first bracket and the second bracket, and the connecting shaft is rotatably arranged on the backrest; The bracket driving module is connected to the connecting shaft and can drive the connecting shaft to rotate, and the first bracket and the second bracket are linked with the connecting shaft; The table top assembly is movably arranged on the first bracket and the second bracket.

3. The table top assembly according to claim 2, characterized in that: The connecting shaft is provided with a connecting plate; The support driving module is configured as a screw motor, and the screw of the screw motor is connected to the connecting plate. The screw motor drives the connecting shaft to rotate through the telescopic movement of the screw.

4. The table top assembly according to claim 2, characterized in that: A pull rod is provided between the first bracket and the second bracket, and two ends of the pull rod are fixedly connected to the first bracket and the second bracket respectively.

5. The table top assembly according to claim 2, characterized in that: The table top assembly further comprises a first upper connecting rod, a second upper connecting rod, a first lower connecting rod and a second lower connecting rod, one end of each of the four connecting rods being rotatably connected to the table top; One end of the first upper connecting rod and the first lower connecting rod away from the table top is rotatably arranged on the first bracket; one end of the second upper connecting rod and the second lower connecting rod away from the table top is rotatably arranged on the second bracket.

6. The table top assembly according to claim 5, characterized in that: The first upper connecting rod, the second upper connecting rod, the first lower connecting rod and the second lower connecting rod are rotatably connected to the table top and together form a double rocker mechanism; When the table top is in the unfolded state: the lower surface of the first upper connecting rod abuts against the upper surface of the first lower connecting rod, and / or the lower surface of the second upper connecting rod abuts against the upper surface of the second lower connecting rod.

7. The table top assembly according to any one of claims 1 to 6, characterized in that: The table top assembly also includes a table top drive motor, which is mounted on the mounting bracket and can drive the table top to switch between the unfolded state and the folded state.

8. The table top assembly according to claim 2, characterized in that: Two first mounting seats are arranged at intervals on the backrest, one end of the connecting shaft is rotatably arranged on one of the first mounting seats, and the other end of the connecting shaft is rotatably arranged on the other of the first mounting seats.

9. The table top assembly according to claim 3, characterized in that: A second mounting seat is arranged on the backrest, and the screw motor is mounted on the second mounting seat.

10. A car seat, characterized in that: It comprises a backrest, on which is arranged a table top assembly as described in any one of claims 1-9.

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