Seat table plate assembly, seat and vehicle

Abstract

The utility model relates to a seat table plate assembly, a seat and a vehicle. The seat table plate assembly comprises a mounting frame, a driving part arranged on the mounting frame, a table plate arranged on the mounting frame through a connecting rod mechanism, and a transmission part arranged between the driving part and the connecting rod mechanism. The mounting frame is used for mounting the seat table plate assembly on a seat backrest, the driving part can swing relative to the mounting frame, a lead screw is arranged at the power output end of the driving part, and the transmission part comprises a rotating shaft rotationally arranged on the mounting frame, a transmission rod arranged between the lead screw and the rotating shaft and a gear unit arranged between the rotating shaft and the connecting rod mechanism. The driving part can drive the rotating shaft to rotate through the lead screw and drive the table plate to rotate through the gear unit and the connecting rod mechanism. According to the seat table plate assembly, the occupied space can be reduced, the thickness of a seat backrest can be reduced, the table plate can be driven to rotate through the gear unit, and therefore the requirement for the thickness of the seat backrest can be reduced through the seat table plate assembly, and the overall occupied space of a seat can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a seat table assembly. At the same time, the utility model also relates to a seat provided with the seat table assembly, and a vehicle provided with the seat. Background Art

[0002] A vehicle seat table, also known as a small vehicle table or a folding vehicle table, is a foldable table installed at the rear or side of a vehicle seat to provide additional desktop space for passengers to dine, work, study or place items in the vehicle. When it is needed, the drive unit drives the table to extend outward and open to a fixed angle before stopping; when it is not needed, the drive unit drives the table to rotate in the opposite direction and fold up. In addition, the drive unit is usually installed on the seat back and is connected to the table through a transmission mechanism, resulting in a larger space requirement, making the seat back thicker and occupying a larger space. Utility Model Content

[0003] In view of this, the utility model aims to provide a seat table assembly, so as to reduce the occupied space and help reduce the thickness of the seat back.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A seat table assembly comprises a mounting frame, a driving part arranged on the mounting frame, a table board arranged on the mounting frame via a connecting rod mechanism, and a transmission part arranged between the driving part and the connecting rod mechanism;

[0006] The mounting frame is used to mount the seat table assembly on the seat back, the driving unit can swing relative to the mounting frame, and a screw rod is provided at the power output end of the driving unit, and the transmission unit includes a rotating shaft rotatably arranged on the mounting frame, a transmission member arranged between the screw rod and the rotating shaft, and a gear unit arranged between the rotating shaft and the connecting rod mechanism;

[0007] The driving unit can drive the rotating shaft to rotate through the screw rod, and drive the table top to rotate through the gear unit and the connecting rod mechanism.

[0008] Furthermore, the transmission member extends in the radial direction of the rotating shaft, and one end of the transmission member is fixedly connected to the rotating shaft, and the other end is hingedly connected to the screw rod.

[0009] Furthermore, the mounting frame includes a frame body and a mounting seat provided on the frame body;

[0010] The rotating shaft is arranged on the frame body, the mounting seat is provided with a mounting cavity and a through hole connected to the mounting cavity, the power output end of the driving part is arranged in the mounting cavity, and can swing within a preset angle relative to the mounting seat, the screw rod passes through the through hole, and the through hole is long and strip-shaped to provide a swinging space for the screw rod.

[0011] Furthermore, the frame body has a mounting groove with a notch facing backwards, and a flange provided at the notch of the mounting groove, and the flange is folded outward of the mounting groove;

[0012] The mounting seat is arranged in the mounting groove, and the rotating shaft and the connecting rod mechanism are arranged on the flange.

[0013] Further, the flange has a folded portion folded toward the bottom of the installation groove, and the rotating shaft is arranged on the folded portion; and / or,

[0014] A bracket is arranged on the flange, and the connecting rod mechanism is arranged on the bracket.

[0015] Furthermore, the driving part includes a motor, and the screw rod is arranged at one end of the motor through a transmission structure;

[0016] The motor is a Hall motor.

[0017] Further, the linkage mechanism includes an active linkage and a driven linkage hinged between the mounting frame and the table top;

[0018] The gear unit includes a driving gear disposed on the rotating shaft, and a tooth portion disposed on the driving connecting rod, wherein the tooth portion is meshed with the driving gear.

[0019] Further, the active connecting rod is in an inverted "Z" shape, and the driven connecting rod has a first portion and a second portion arranged at an obtuse angle, the first portion is hinged to the mounting frame, and the second portion is hinged to the table top;

[0020] The hinge point between the active connecting rod and the table top is arranged close to the end of the table top relative to the hinge point between the second part and the table top.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] The seat table assembly described in the utility model is provided with a screw rod at the power output end of the driving part, and the transmission part includes a rotating shaft, a transmission member, and a gear unit arranged therebetween. The screw rod can be arranged along the upper and lower directions of the seat back. While being able to reduce the occupied space and the thickness of the seat back, the table plate can also be driven to rotate smoothly through the gear unit. Therefore, the seat table assembly can reduce the requirements for the thickness of the seat back, which is beneficial to reducing the overall occupied space of the seat.

[0023] In addition, the transmission member extends radially along the rotating shaft, and one end of the transmission member is fixedly connected to the rotating shaft, and the other end is hingedly connected to the screw rod, which has a simple structure and is easy to design and implement. By providing a mounting seat with a mounting cavity and a through hole, it is convenient to set the driving part, and the screw rod is driven to swing under the drive of the driving part. By providing a mounting groove on the frame body and a flange at the groove, the structural strength of the frame body can be improved, and the setting of the rotating shaft and the connecting rod mechanism can also be improved.

[0024] Secondly, by providing a folded portion on the flange that folds toward the bottom of the mounting groove, the structural strength of the frame body can be further improved, thereby improving the stability of the shaft, and also increasing the distance between the shaft and the connecting rod mechanism, making it easier to arrange the gear unit between the two. The motor uses a Hall motor, which can be controlled by the seat together with the backrest adjustment motor, so that the table top can be automatically adjusted and kept level during the backrest adjustment process.

[0025] In addition, the connecting rod mechanism includes an active connecting rod and a driven connecting rod hinged between the mounting frame and the table top, which has a simple structure and is easy to design and implement. The gear unit includes an active gear and a tooth portion provided on the active connecting rod, which can save the need for an additional driven gear, simplify parts, reduce costs, facilitate layout and implementation, and also improve the stability of force transmission. The active connecting rod is in an inverted "Z" shape, which can improve its structural strength and can also better drive the table top to flip.

[0026] Another object of the present invention is to provide a seat, on which the seat table assembly as described above is provided.

[0027] In addition, the utility model also provides a vehicle, on which the seat as described above is provided.

[0028] The vehicle and seat described in the present invention have all the beneficial effects of the above-mentioned seat table assembly, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0030] Figure 1 This is an application state diagram of the seat table assembly described in the embodiment of the utility model;

[0031] Figure 2 This is a structural schematic diagram of a seat table assembly according to an embodiment of the utility model;

[0032] Figure 3 It is a partial structural schematic diagram of the seat table assembly according to the embodiment of the utility model;

[0033] Figure 4 It is a structural schematic diagram of the seat table board assembly according to an embodiment of the utility model when the table board is removed;

[0034] Figure 5 This is a schematic diagram of the structure of the mounting frame according to an embodiment of the utility model;

[0035] Figure 6 It is a schematic structural diagram of the mounting frame described in the embodiment of the utility model from another viewing angle.

[0036] Description of reference numerals:

[0037] 1. Table top; 2. Active connecting rod; 3. Motor; 4. Seat back; 5. Mounting frame; 6. Rotating shaft; 7. Active gear; 8. Driven connecting rod; 9. Screw rod;

[0038] 501, frame body; 5011, flange; 5012, folded portion; 5013, bent portion; 502, mounting seat; 5021, mounting cavity; 5022, through hole; 503, bracket. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0040] In the description of the present utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction of the automobile (Z direction), the front-back direction of the automobile is also the length direction of the automobile (X direction), and the left-right direction of the automobile is also the width direction of the automobile (Y direction). In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0043] The present embodiment relates to a novel seat table board assembly, which in its overall structure includes a mounting frame 5, a driving portion arranged on the mounting frame 5, a table board 1 arranged on the mounting frame 5 via a connecting rod mechanism, and a transmission portion arranged between the driving portion and the connecting rod mechanism.

[0044] The mounting frame 5 is used to mount the seat table 1 assembly on the seat back 4, the driving unit can swing relative to the mounting frame 5, and a screw 9 is provided at the power output end of the driving unit, and the transmission unit includes a rotating shaft 6 rotatably arranged on the mounting frame 5, a transmission member 10 arranged between the screw 9 and the rotating shaft 6, and a gear unit arranged between the rotating shaft 6 and the connecting rod mechanism. The driving unit can drive the rotating shaft 6 to rotate through the screw 9, and drive the table 1 to rotate through the gear unit and the connecting rod mechanism.

[0045] The seat table board 1 assembly of the present embodiment is provided with a screw rod 9 at the power output end of the driving part, and the transmission part includes a rotating shaft 6, a transmission member, and a gear unit arranged therebetween. The screw rod 9 can be arranged in the up and down directions of the seat back 4. While being able to reduce the occupied space and the thickness of the seat back 4, the table board 1 can also be driven to rotate by the gear unit. Therefore, the seat table board 1 assembly can reduce the requirements for the thickness of the seat back 4, which is beneficial to reducing the overall occupied space of the seat.

[0046] Based on the above overall introduction, an exemplary structure of the seat table board 1 assembly of this embodiment is referred to as follows: Figures 1 to 3 As shown in the figure, the structure of the table top 1 can refer to the existing structure. And the table top 1 generally includes an upper plate body and a lower plate body that are buckled and connected to form an installation space. In addition, Figure 1 As shown in , the screw rod 9 is arranged roughly along the height direction of the seat back 4, so it can effectively reduce the space occupied by the drive unit in the thickness direction of the seat back 4, thereby reducing the space occupied by the entire seat in the vehicle. As a preferred embodiment, combined with Figures 4 to 6 As shown in , the mounting frame 5 of the present embodiment includes a frame body 501 and a mounting seat 502 disposed on the frame body 501 .

[0047] Among them, Figure 1 As shown in , the mounting frame 5 is mounted on the seat back 4 through the frame body 501, and the frame body 501 extends along the width direction of the seat back 4 to be connected to the back side panels on both sides. Figure 3 As shown in , the rotating shaft 6 is arranged on the frame body 501, and the mounting seat 502 is provided with a mounting cavity 5021 and a through hole 5022 connected to the mounting cavity 5021. The power output end of the above-mentioned driving unit is arranged in the mounting cavity 5021, and can swing within a preset angle relative to the mounting seat 502, and the preset angle can be determined according to the rotation displacement of the table top 1. The screw rod 9 passes through the through hole 5022, and the through hole 5022 is long and strip-shaped to provide a swing space for the screw rod 9. As a preferred embodiment, combined with Figure 5 and Figure 6 As shown in FIG. 1 , the frame body 501 of this embodiment has a mounting groove with a notch facing backwards, and a flange 5011 disposed at the notch of the mounting groove, and the flange 5011 is folded outward of the mounting groove. The mounting seat 502 is disposed in the mounting groove, and the rotating shaft 6 and the connecting rod mechanism are disposed on the flange 5011 .

[0048] In this embodiment, by providing a mounting groove on the frame body 501 and a flange 5011 at the groove, the structural strength of the frame body 501 can be improved, while also providing the shaft 6 and the connecting rod mechanism. Figure 5 and Figure 6 As shown in the figure, the cross section of the frame body 501 is "U" shaped, and the above-mentioned installation groove and flange 5011 are formed, and the flange 5011 is provided on two flanges 5011 on two opposite sides of the frame body 501. As a further embodiment, in order to facilitate the design and installation of the rotating shaft 6 and the connecting rod mechanism, still refer to Figure 5 and Figure 6 As shown in , a bracket 503 is provided on the flange 5011 , and a connecting rod mechanism is provided on the bracket 503 .

[0049] Among them, the flanges 5011 on both sides are provided with brackets 503, and as a preferred embodiment, the brackets 503 are screwed on the flanges 5011 to facilitate maintenance and replacement. Moreover, as a preferred embodiment, combined with Figure 5 and Figure 6 As shown in , the bracket 503 is in an "L" shape as a whole, and includes a transverse portion connected to the flange 5011, and a longitudinal portion extending to a side away from the flange 5011. The bracket 503 is arranged on the flange 5011 through the transverse portion, and an upper mounting hole and a lower mounting hole are respectively provided at the upper and lower ends of the longitudinal portion for mounting the active connecting rod 2 and the driven connecting rod 8 of the above-mentioned connecting rod mechanism.

[0050] In addition, in this embodiment, if Figure 5 and Figure 6As shown in , as a further embodiment, the flange 5011 has a folded portion 5012 folded toward the bottom of the installation groove, and the rotating shaft 6 is arranged on the folded portion 5012 and penetrates the folded portions 5012 of the flanges 5011 on both sides. Such an arrangement can not only further improve the structural strength of the frame body 501, thereby improving the arrangement stability of the rotating shaft 6, but also increase the distance between the rotating shaft 6 and the connecting rod mechanism, making it easier to arrange the gear unit between the two.

[0051] In addition, Figure 5 and Figure 6 As shown in , in order to further increase the structural strength of the frame body 501, a bent portion 5013 bent into the mounting groove is provided at the bottom of the frame body 501. The setting of the bent portion 5013 can increase the structural strength of the mounting groove, thereby improving the setting stability of the mounting seat 502 in the mounting groove, and further improving the driving stability of the driving unit. At this time, under the premise of ensuring the structural strength of the mounting groove, in order to reduce the overall weight, as shown in FIG. Figure 6 As shown in , a weight-reducing hole is provided at the bottom of the installation groove.

[0052] It should be noted that, in addition to providing a bracket 503 on the frame body 501 for installing the connecting rod mechanism, the bracket 503 may not be provided, and a connecting frame connected to the flange 5011 may be provided on the connecting rod mechanism.

[0053] In this embodiment, combined with Figure 4 and Figure 5 As shown in , as a preferred embodiment, the driving unit includes a motor 3, a screw rod 9 is arranged at one end of the motor 3 through a transmission structure, and the motor 3 adopts a Hall motor. In the motor 3, the Hall sensor is used to detect the position of the rotor, which is the key to achieve accurate control of the motor 3. In particular, in the brushless DC motor 3, the Hall sensor can feedback the position information of the rotor in real time, so that the motor 3 controller can accurately control the operation of the motor 3.

[0054] As a result, the table top 1 and the chair backrest are both controlled by the seat memory module. Through calibration, the memory module identifies the adjustment position of the seat back 4. When the small table top 1 is opened, the memory module synchronously reads the situation of the table top 1 adjustment motor 3 and calculates the angle. Then, the memory module processes the Hall values ​​fed back by the backrest motor and the motor 3, actively matches the corresponding power supply mode, and supports the Hall motor to make corresponding actions, which can help the table top 1 to adaptively adjust its opening angle when the seat back 4 is adjusted, so that the table top 1 remains horizontal. Of course, in addition to using a Hall motor, the drive unit can also use an ordinary drive motor 3 adopted in the prior art, and combine it with a gyroscope or gravity sensor on the table top 1. This structure is also conducive to realizing the automatic adjustment of the angle of the table top 1. It can refer to the prior art and will not be described in detail here.

[0055] The transmission structure between the screw rod 9 and the motor 3 can be a conventional structure, for example, the transmission structure includes a worm arranged on the output shaft of the motor 3, and a worm wheel screwed on the screw rod 9, so that the screw rod 9 can be driven to move by the rotation of the output shaft, thereby driving the table top 1 to flip. In addition, in specific implementation, the Hall motor can directly adopt an existing structure, for example, a motor 3 produced by Bosch can be used, or a motor 3 produced by other companies that can realize the movement of the screw rod 9 can be used.

[0056] In addition, if Figure 4 As shown in , as a preferred embodiment, the transmission member 10 of this embodiment extends along the radial direction of the rotating shaft 6, and one end of the transmission member 10 is fixedly connected to the rotating shaft 6, and the other end is hingedly connected to the screw rod 9. This structure is simple, which is convenient for arranging the transmission member, and in specific implementation, the transmission member 10 can be welded to the rotating shaft 6.

[0057] As a preferred embodiment, refer to Figure 2 and Figure 3 As shown in , the linkage mechanism of this embodiment includes an active link 2 and a driven link 8 hinged between a mounting frame 5 and a table top 1. The gear unit includes an active gear 7 provided on a rotating shaft 6, and a toothed portion provided on the active link 2, and the toothed portion meshes with the active gear 7. This arrangement has a simple structure, mature technology, and is easy to process and manufacture. The gear unit includes an active gear 7 and a toothed portion provided on the active link 2, and an additional driven gear can be omitted, which can simplify components, reduce costs, facilitate layout and implementation, and also improve the stability of force transmission.

[0058] As a further embodiment, in order to improve the flipping stability of the table top 1, Figure 3 As shown in the figure, the connecting rod mechanism is provided at two opposite sides of the table top 1, and correspondingly, the driving gear 7 is also provided at two ends of the rotating shaft 6. The diameter of the driving gear 7 is larger than the diameter of the toothed part of the driven connecting rod 8, so as to have the effect of reducing speed and increasing torque, which is conducive to driving the table top 1 to rotate. In addition, in order to improve the smoothness of the rotation of the rotating shaft 6, the rotating shaft 6 of this embodiment is rotatably provided on the folded part 5012 through a bushing.

[0059] In addition, if Figure 3 As shown in , as a preferred embodiment, the active connecting rod 2 of this embodiment is in an inverted "Z" shape, and the driven connecting rod 8 has a first part and a second part set at an obtuse angle, the first part is hinged to the mounting frame 5, and the second part is hinged to the table board 1. In addition, the hinge point between the active connecting rod 2 and the table board 1 is set closer to the end of the table board 1 relative to the hinge point between the second part and the table board 1. In this embodiment, by setting the active connecting rod 2 in an inverted "Z" shape, its structural strength can be improved, and it can also better drive the table board 1 to flip.

[0060] The seat table board 1 assembly of this embodiment, by adopting the above structure, can not only reduce the requirements for the thickness of the seat back 4, but also help reduce the overall space occupied by the seat. At the same time, by adopting the Hall motor 3, the position of the seat back 4 can be identified and the table board 1 motor 3 can be started. Then, the motor 3 rotates to drive the screw rod 9 to move, and the screw rod 9 drives the transmission member 10, thereby driving the table board 1 to move synchronously. The final effect is that when the backrest rotates, the table board 1 will also rotate synchronously and remain horizontal, thereby effectively preventing the items placed on the table board 1 from sliding off.

[0061] In addition, the present embodiment also relates to a seat, on which the seat table assembly as described above is provided.

[0062] In addition, this embodiment also provides a vehicle, on which the above seats are provided.

[0063] The vehicle and seat of this embodiment have all the beneficial effects of the above-mentioned seat table board 1 assembly, which will not be described in detail here.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat table assembly, characterized in that: It comprises a mounting frame (5), a driving part arranged on the mounting frame (5), a table top (1) arranged on the mounting frame (5) via a connecting rod mechanism, and a transmission part arranged between the driving part and the connecting rod mechanism; The mounting frame (5) is used to mount the seat table assembly on the seat back (4); the driving unit can swing relative to the mounting frame (5); a screw rod (9) is provided at the power output end of the driving unit; the transmission unit comprises a rotating shaft (6) rotatably arranged on the mounting frame (5), a transmission member (10) arranged between the screw rod (9) and the rotating shaft (6), and a gear unit arranged between the rotating shaft (6) and the connecting rod mechanism; The driving unit can drive the rotating shaft (6) to rotate through the screw rod (9), and drive the table top (1) to rotate through the gear unit and the connecting rod mechanism.

2. The seat table assembly according to claim 1, characterized in that: The transmission member (10) extends in the radial direction of the rotating shaft (6), and one end of the transmission member (10) is fixedly connected to the rotating shaft (6), and the other end is hingedly connected to the screw rod (9).

3. The seat table assembly according to claim 1, characterized in that: The mounting frame (5) comprises a frame body (501) and a mounting seat (502) arranged on the frame body (501); The rotating shaft (6) is arranged on the frame body (501); the mounting seat (502) is provided with a mounting cavity (5021) and a through hole (5022) connected to the mounting cavity (5021); the power output end of the driving unit is arranged in the mounting cavity (5021) and can swing within a preset angle relative to the mounting seat (502); the screw rod (9) passes through the through hole (5022), and the through hole (5022) is in a long strip shape to provide a swinging space for the screw rod (9).

4. The seat table assembly according to claim 3, characterized in that: The frame body (501) has a mounting groove with a notch facing backwards, and a flange (5011) provided at the notch of the mounting groove, wherein the flange (5011) is folded outwards of the mounting groove; The mounting seat (502) is arranged in the mounting groove, and the rotating shaft (6) and the connecting rod mechanism are arranged on the flange (5011).

5. The seat table assembly according to claim 4, characterized in that: The flange (5011) has a folded portion (5012) folded toward the bottom of the installation groove, and the rotating shaft (6) is arranged on the folded portion (5012); and / or, A bracket (503) is provided on the flange (5011), and the connecting rod mechanism is provided on the bracket (503).

6. The seat table assembly according to claim 1, characterized in that: The driving part comprises a motor (3), and the screw rod (9) is arranged at one end of the motor (3) through a transmission structure; The motor (3) is a Hall motor.

7. The seat table assembly according to any one of claims 1 to 6, characterized in that: The connecting rod mechanism comprises an active connecting rod (2) and a driven connecting rod (8) hinged between the mounting frame (5) and the table top (1); The gear unit comprises a driving gear (7) arranged on the rotating shaft (6), and a tooth portion arranged on the driving connecting rod (2), wherein the tooth portion meshes with the driving gear (7).

8. The seat table assembly according to claim 7, characterized in that: The active connecting rod (2) is in an inverted "Z" shape, and the driven connecting rod (8) has a first part and a second part arranged at an obtuse angle, the first part is hinged to the mounting frame (5), and the second part is hinged to the table top (1); The hinge point between the active connecting rod (2) and the table top (1) is arranged close to the end of the table top (1) relative to the hinge point between the second part and the table top (1).

9. A seat, characterized in that: The seat is provided with a seat table assembly according to any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle is provided with the seat according to claim 9.

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