Table plate electric adjusting device for automobile seat

Abstract

The invention belongs to the technical field of automobile accessories, and particularly relates to an electric table plate adjusting device for an automobile seat. Wherein the lead screw motor assembly is fixed on the seat framework, L-shaped brackets are respectively fixed on the seat framework at two ends above the motor bracket, one end of the driving arm is hinged to the end part of the lead screw motor assembly, the other end of the driving arm is sleeved with a driving rod, and the driving rod respectively penetrates through the corresponding L-shaped bracket to be connected with one end of the lower connecting rod; one end of the upper connecting rod is movably connected to the upper portion of the outer side of the L-shaped support, and the other end of the upper connecting rod is connected to the upper portion of the outer side of the table plate framework. Electric adjustment of the table board can be achieved, the self-adaptive adjustment function of the seat table board can be achieved in cooperation with an electric appliance control system, the occupied space is small, the structure is simple, and the cost is low.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology, specifically relating to an electric adjustment device for a car seat table. Background Technology

[0002] Traditional car seat backrest tray tables are manually adjustable, requiring users to manually unfold or fold them onto the backrest. This type of tray table is inconvenient to use and does not align with the demands of intelligent and electric vehicle technology. To improve ease of use, electric tray table structures have gradually emerged on the market. These use a motor as a power source, which drives the tray table to rotate via a transmission mechanism, thus unfolding and folding it. However, existing electric tray table structures in car seats involve significant modifications to the traditional tray table structure, generally resulting in higher costs. Furthermore, unfolding and folding them takes up considerable space on the backrest side, thus reducing interior space.

[0003] In general, traditional car seat tray tables typically use a manual folding structure, which is inconvenient to operate and takes up a lot of space; improved electric tray tables mostly use gear and rack or sector gear transmission, which, although achieving electrification, have the following drawbacks:

[0004] Complex structure: Gear transmission requires precise matching, increasing manufacturing costs;

[0005] Large space requirement: The transmission mechanism requires a large installation space, which affects the seat design;

[0006] Low reliability: Gears are prone to wear after long-term use, leading to transmission failure. Summary of the Invention

[0007] To overcome the above problems, the present invention provides an electric adjustment device for a car seat table. The present invention consists of a drive mechanism, a linkage mechanism, and a table, which can realize electric adjustment of the table. With the help of an electrical control system, it can realize the adaptive adjustment function of the seat table. It occupies little space, has a simple structure, and is low in cost.

[0008] An electric adjustment device for a car seat table includes a lead screw motor assembly 1, a motor bracket 2, a drive arm 3, a table frame 4, an L-shaped bracket 6, an upper connecting rod 7, a lower connecting rod 8, and a drive rod 9. The lead screw motor assembly 1 is fixed to the seat frame 5 via the motor bracket 2. L-shaped brackets 6 are fixed to the seat frame 5 at both ends above the motor bracket 2. One end of the drive arm 3 is hinged to the lead screw end of the lead screw motor assembly 1, and the other end is fitted with a drive rod 9. Both ends of the drive rod 9 pass through the corresponding L-shaped brackets 6 and are connected to one end of the corresponding lower connecting rod 8. The other end of the lower connecting rod 8 is connected to the lower outer side of the table frame 4. One end of the upper connecting rod 7 is movably connected to the upper outer side of the L-shaped bracket 6, and the other end is connected to the upper outer side of the table frame 4.

[0009] The upper connecting rod 7 is a bent rod.

[0010] The lower connecting rod 8 is a curved rod with an arc.

[0011] The lead screw motor assembly 1 includes a lead screw motor body 11 and a lead screw 12. The lead screw motor body 11 is fixed to the seat frame 5 by a motor bracket 2, and the lead screw 12 is connected inside the lead screw motor body 11 and can move up and down under the drive of the lead screw motor body 11.

[0012] The top of the lead screw 12 is provided with a fixed seat, and the drive arm 3 is hinged to the fixed seat.

[0013] The table frame 4 is covered with lightweight ABS plastic sheet.

[0014] The beneficial effects of this invention are:

[0015] Compared to the gear and sector mechanism used in traditional electric tabletops, this invention uses a lead screw and connecting rod, which has fewer parts in its lead screw and slider mechanism, greatly reducing costs. Furthermore, this invention occupies less space, has a simple structure, and provides stable transmission. This invention aligns with the development needs of intelligent and electric systems and improves ease of use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the dispersion structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the tabletop of the present invention being opened.

[0020] Figure 4 This is a schematic diagram of the tabletop closing according to the present invention.

[0021] Figure 5 This is a partial structural schematic diagram of the present invention.

[0022] The components include: lead screw motor assembly 1, lead screw motor body 11, lead screw 12, motor bracket 2, drive arm 3, table frame 4, seat frame 5, L-shaped bracket 6, upper connecting rod 7, lower connecting rod 8, and drive rod 9. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0024] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0027] Example 1

[0028] An electric adjustment device for a car seat table includes a lead screw motor assembly 1, a motor bracket 2, a drive arm 3, a table frame 4, an L-shaped bracket 6, an upper connecting rod 7, a lower connecting rod 8, and a drive rod 9. The lead screw motor assembly 1 is fixed to the seat frame 5 via the motor bracket 2. L-shaped brackets 6 are fixed to the seat frame 5 at both ends of the motor bracket 2. One end of the drive arm 3 is hinged to the lead screw end of the lead screw motor assembly 1, and the other end is externally fitted with a drive rod 9. Both ends of the drive rod 9 pass through the corresponding L-shaped brackets 6 and are movably connected to one end of the corresponding lower connecting rod 8. The other end of the lower connecting rod 8 is connected to the lower outer side of the table frame 4. One end of the upper connecting rod 7 is movably connected to the upper outer side of the L-shaped bracket 6, and the other end is connected to the upper outer side of the table frame 4.

[0029] The upper connecting rod 7 is a bent rod with a bending angle of 110° to 130°.

[0030] The lower connecting rod 8 is a curved rod with an arc radius that matches the contour of the seat back.

[0031] The lead screw motor assembly 1 includes a lead screw motor body 11 and a lead screw 12. The lead screw motor body 11 is fixed to the seat frame 5 by a motor bracket 2, and the lead screw 12 is connected inside the lead screw motor body 11 and can move up and down under the drive of the lead screw motor body 11.

[0032] The top of the lead screw 12 is provided with a fixed seat, and the drive arm 3 is hinged to the fixed seat.

[0033] The table frame 4 is covered with lightweight ABS plastic sheet.

[0034] The motor bracket 2 is welded to the waist position of the seat frame 5; the top of the lead screw 12 is hinged to the drive arm 3 through a pin; the drive rod 9 is made of hollow steel pipe, and both ends are connected to the L-shaped bracket 6 through bearings.

[0035] When in use, when the table is folded up, the lead screw motor body 11 is turned on, which drives the lead screw 12 to move upward. The lead screw 12 drives the drive arm 3 to rotate, which in turn drives the drive rod 9 to rotate counterclockwise. Therefore, the lower connecting rod 8 is driven to move downward, and at the same time, with the cooperation of the upper connecting rod 7, the table frame 4 is folded up.

[0036] When the tabletop is opened, the lead screw motor body 11 is activated, which drives the lead screw 12 to move downward. The lead screw 12 drives the drive arm 3 to rotate, which in turn drives the drive rod 9 to rotate. Therefore, the lower connecting rod 8 is driven to move upward, and at the same time, with the cooperation of the upper connecting rod 7, the tabletop frame 4 is driven to open forward.

[0037] Example 2

[0038] 1. The drive mechanism is fixed to the seat frame 5.

[0039] 2. The drive mechanism consists of a lead screw motor assembly 1 and a motor bracket 2. The lead screw motor assembly 1 includes a lead screw 12 and a motor body 11. The lead screw 12 can slide relative to the motor body 11, and the motor body 11 can pivot on the motor bracket 2.

[0040] 3. The transmission mechanism for the unfolding of the table frame 4 is a linkage mechanism, which is fixed on both sides of the table frame 4. One end is hinged to the table frame 4, and the other end is hinged to the seat frame 5 through the L-shaped bracket 6.

[0041] 4. A drive arm 3 and a drive rod 9 are arranged between the drive mechanism and the transmission mechanism. One end of the drive arm 3 is fixedly connected to the lower connecting rod 8 on both sides of the table frame 4 to realize the rotation of the connecting rod. One end of the drive arm 3 is hinged to the lead screw 12 and the other end is fixedly connected to the lower connecting rod 8. When the lead screw 12 moves, the drive arm 3 rotates, which drives the drive rod 9 to rotate, thereby realizing the movement of the four-bar linkage and the movement of the frame 4.

[0042] 6. When the motor is running, the lead screw 12 drives the drive arm 3 and drive rod 9 to rotate, so as to open and close the table.

[0043] Deployment state: Lead screw 12 moves down → Drive arm 3 pushes drive rod 9 to rotate clockwise → Lower connecting rod 8 is lifted up → Table frame 4 is horizontally deployed under the linkage of the connecting rod;

[0044] Collapsed state: Lead screw 12 moves up → Drive arm 3 pulls drive rod 9 to rotate counterclockwise → Lower connecting rod 8 presses down → Table frame 4 folds and rests against the back of the seat.

[0045] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, any person skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention. These simple modifications are all within the scope of protection of the present invention.

[0046] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0047] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. An electric adjustment device for a car seat table, characterized in that, The system includes a lead screw motor assembly (1), a motor bracket (2), a drive arm (3), a table frame (4), an L-shaped bracket (6), an upper connecting rod (7), a lower connecting rod (8), and a drive rod (9). The lead screw motor assembly (1) is fixed to the seat frame (5) via the motor bracket (2). L-shaped brackets (6) are fixed to the seat frame (5) at both ends above the motor bracket (2). One end of the drive arm (3) is hinged to the lead screw end of the lead screw motor assembly (1), and the other end is fitted with a drive rod (9). Both ends of the drive rod (9) pass through the corresponding L-shaped bracket (6) and are connected to one end of the corresponding lower connecting rod (8). The other end of the lower connecting rod (8) is connected to the lower outer side of the table frame (4). One end of the upper connecting rod (7) is movably connected to the upper outer side of the L-shaped bracket (6), and the other end is connected to the upper outer side of the table frame (4).

2. The electric adjustment device for a car seat table according to claim 1, characterized in that, The upper connecting rod (7) is a bent rod.

3. The electric adjustment device for a car seat table according to claim 1, characterized in that, The lower connecting rod (8) is a curved rod with an arc.

4. The electric adjustment device for a car seat table according to claim 1, characterized in that, The lead screw motor assembly (1) includes a lead screw motor body (11) and a lead screw (12). The lead screw motor body (11) is fixed to the seat frame (5) by a motor bracket (2). The lead screw (12) is connected inside the lead screw motor body (11) and can move up and down under the drive of the lead screw motor body (11).

5. The electric adjustment device for a car seat table according to claim 1, characterized in that, The top of the lead screw (12) is provided with a fixed seat, and the drive arm (3) is hinged to the fixed seat.

6. The electric adjustment device for a car seat table according to claim 1, characterized in that, The table frame (4) is covered with lightweight ABS plastic sheet.

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