A car seat leg support assembly

Abstract

This utility model discloses a car seat leg rest assembly, belonging to the field of automotive manufacturing technology. It aims to solve the problems of existing car seat leg rests, such as limited adjustment function, unstable movement, uneven height adjustment on both sides, and easy tangling of wiring harnesses. The assembly includes a leg rest assembly, a cover plate spot-welded assembly, an extension motor, and a deployment motor. The leg rest assembly consists of a frame welding assembly and a slide rail assembly. The frame welding assembly includes an extension motor mounting bracket and two side leg rest frame riveting assemblies. The leg rest cover plate of the cover plate spot-welded assembly is fitted onto the top of the slide rail assembly. The extension motor cooperates with the slide rail assembly to drive the sliding bracket, causing the leg rest cover plate to move horizontally. The deployment motor, hinged to an eccentric push plate on a rotating rod, pushes the two side riveting assemblies to simultaneously deploy or retract to adjust the end height. This assembly, used in car seats, enables smooth leg rest adjustment, improves support uniformity and stability, and enhances riding comfort.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to an automobile seat leg support assembly. Background Technology

[0002] Currently, car seat leg rests are an important component for improving passenger comfort, especially providing better leg support during long journeys. With the development of the automotive manufacturing industry, the adjustability and stability of car seat leg rests have gradually become key industry concerns. However, existing car seat leg rests still have the following problems in use: In practical use, existing car seat leg rests often suffer from limited adjustment functions or insufficient stability in the adjustment process. For example, some leg rests can only adjust either the extension length or the end height, resulting in poor adaptability and difficulty in simultaneously meeting users' needs for different support states.

[0003] To address the aforementioned problems, this utility model document proposes an automotive seat leg support assembly. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing car seat leg support adjustment functions, which are limited and fail to meet users' diverse needs for leg support. Therefore, this invention proposes a car seat leg support assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A car seat leg rest assembly, comprising: The leg support assembly includes a frame welding assembly and a slide rail assembly. The frame welding assembly includes an extension motor mounting bracket, a right-side riveting assembly of the leg support frame, and a left-side riveting assembly of the leg support frame. One end of both the right-side riveting assembly and the left-side riveting assembly of the leg support frame is fixed to the extension motor mounting bracket. A cover plate spot welding assembly, the cover plate spot welding assembly including a leg support cover plate, the leg support cover plate being sleeved on the top of the slide rail assembly and being able to move synchronously with the slide rail assembly; An extension section motor, which is connected to the slide rail assembly, is used to drive the cover plate spot welding assembly to push and pull. An unfolding motor is connected to the right riveting assembly and the left riveting assembly of the leg support frame, and is used to adjust the height of the other end of the right riveting assembly and the left riveting assembly of the leg support frame. The extension section motor drives the slide rail assembly to move, which in turn pushes and pulls the leg support cover to adjust the extension length; the unfolding motor drives the right side riveting assembly and the left side riveting assembly of the leg support frame to unfold and retract, so as to adjust the end height.

[0006] In one possible design, the slide rail assembly includes two slide rail bodies and a sliding bracket. The two slide rail bodies are located on both sides of the extension motor mounting bracket and are fixedly connected to the extension motor mounting bracket. The sliding bracket is C-shaped, and its bottom ends are slidably connected to the slide rail bodies via sliders. The extension motor is fixed to the bottom of the extension motor mounting bracket, and one end of the extension motor's telescopic screw is fixedly connected to the bottom of the sliding bracket to drive the sliding bracket to move horizontally along the slide rail bodies.

[0007] In one possible design, snap-fit ​​mounting brackets are fixed on both sides of the sliding bracket, and snap-fit ​​mounting brackets have snap holes at the bottom; faceplate hanging brackets are fixed on both inner walls of the leg support cover, and the bottom of the faceplate hanging bracket is bent to provide a buckle, which engages with the snap holes of the snap-fit ​​mounting brackets, so that the leg support cover is fixed to the sliding bracket and moves synchronously.

[0008] In one possible design, both the right-side riveting assembly and the left-side riveting assembly of the leg support frame are composed of multiple connecting rod frames hinged together. A rotating rod is rotatably installed between the right-side riveting assembly and the left-side riveting assembly of the leg support frame, and a motor mounting bracket is fixed thereon to achieve synchronous movement.

[0009] In one possible design, the unfolding motor is fixed to one side of the motor mounting bracket, an eccentric push plate is fixed to the outer wall of the rotating rod, and one end of the telescopic screw of the unfolding motor is hinged to the eccentric end of the eccentric push plate to push the right riveting assembly and the left riveting assembly of the leg support frame to unfold and retract, thereby adjusting their end height.

[0010] In one possible design, a first wire harness bracket is fixed to the inner wall of one side of the leg support cover, and a second wire harness bracket and a third wire harness bracket are fixed to the bottom of the extension motor mounting bracket to secure the wire harness and prevent the wire harness from getting tangled or worn during movement.

[0011] In this application, when the car seat leg support assembly is in operation, if it is necessary to adjust the extension length of the leg support cover, the extension section motor can be activated. The extension section motor is fixed to the bottom of the extension motor mounting bracket, and one end of its telescopic screw is connected to the bottom of the sliding bracket. After activation, the telescopic screw will drive the sliding bracket to move. The sliding bracket can move stably horizontally along the corresponding slide rail body. The leg support cover is fitted onto the top of the slide rail assembly. The bottom of the bracket between the inner walls on both sides of the cover has multiple buckles bent. These buckles engage with the locking holes at the bottom of the mounting bracket on both sides of the sliding bracket, so that the leg support cover can be fixedly installed on the sliding bracket and complete synchronous movement, thereby realizing the push-pull movement of the cover spot-welded assembly and meeting the usage requirements of different extension lengths of the leg support cover.

[0012] When the height of the leg support end needs to be adjusted, the unfolding motor is activated. The unfolding motor is fixed to one side of the motor mounting bracket, and one end of the telescopic lead screw of the unfolding motor is hinged to the eccentric end of the eccentric push plate. Therefore, after the unfolding motor is activated, the telescopic lead screw will push the eccentric push plate and drive the rotating rod to move, thereby enabling the unfolding or retraction of the connecting rod frame of the two riveted assemblies, thus achieving the adjustment of its end height to adapt to different support requirements.

[0013] Throughout the operation, the first wiring harness bracket on the inner wall of one side of the leg support cover will clamp and fix the wiring harness near the cover. The second wiring harness bracket and multiple third wiring harness brackets at the bottom of the extension motor mounting bracket will clamp and fix the corresponding wiring harness in this area, preventing the wiring harness from getting tangled or worn during the movement of various components, thereby ensuring the stability of the entire leg support assembly.

[0014] Beneficial effects: In this utility model, the extended section motor of the car seat leg support assembly drives the sliding bracket to move horizontally along the slide rail body via a telescopic screw. The cooperation between the slide rail body and the sliding bracket can effectively avoid jamming or deviation during movement, ensuring smooth movement. At the same time, the leg support cover is fixed by the buckle at the bottom of the bracket and the buckle hole on both sides of the sliding bracket to engage with the mounting bracket. This not only realizes the synchronous movement of the leg support cover and the sliding bracket, ensuring precise adjustment of the extension length, but also provides convenience for the installation and removal of the leg support cover, and can better meet the usage needs of different extension lengths. In this utility model, the car seat leg support assembly, after the unfolding motor is started, its telescopic screw can push the eccentric push plate to drive the rotating rod to move, thereby driving the right side riveting assembly and the left side riveting assembly of the leg support frame to unfold or retract synchronously, which can complete the adjustment of the height of the end of the leg support; at the same time, this linkage structure can ensure that the frame structure on both sides is adjusted in a consistent manner, avoiding the situation that one side is too high and the other side is too low, thus forming uniform support, and thus adapting to the support needs of different users for the height of the end of the leg support; In this utility model, the car seat leg support assembly has a first wiring harness bracket on the inner wall of the leg support cover that can snap and fix the wiring harness near the cover, and a second wiring harness bracket and multiple third wiring harness brackets at the bottom of the extension motor mounting bracket that can fix the corresponding wiring harness in that area. By effectively fixing the wiring harness in each area, friction or entanglement between the wiring harness and other components can be avoided during component movement. This not only extends the service life of the wiring harness but also ensures the normal operation of electrical components, further improving the stability and reliability of the entire leg support assembly. In this invention, the car seat leg rest assembly, through the combination of the leg rest assembly and the cover plate spot-welded assembly, achieves smooth pushing and pulling of the leg rest cover and flexible adjustment of the height of the leg rest end; the extension section motor drives the slide rail assembly to move, causing the leg rest cover to extend and retract, adapting to different leg extension needs; the unfolding motor pushes the connecting rod frame through the eccentric push plate to complete the lifting and lowering action of the leg rest end, improving the support effect; the application of the wiring harness bracket ensures the fixation of the motor and related wiring harnesses, avoids interference during movement, and enhances overall reliability; this leg rest structure simplifies the operation process, improves the adaptability and comfort of use, and reduces maintenance requirements. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an automobile seat leg support assembly proposed in this utility model; Figure 2 This is a schematic diagram of the separate structure of the leg support assembly and the cover plate spot welding assembly of an automobile seat leg support assembly proposed in this utility model. Figure 3 This is a schematic diagram of the internal structure of the cover plate spot welding assembly of the automobile seat leg support assembly proposed in this utility model; Figure 4 This is a schematic diagram of the first wiring harness bracket and the cover hanging bracket structure of an automobile seat leg support assembly proposed in this utility model; Figure 5 This is a schematic diagram showing the disassembled structure of the leg support assembly of an automobile seat leg support assembly proposed in this utility model.

[0016] In the diagram: 1. Leg support assembly; 2. Cover plate spot welding assembly; 3. Leg support cover plate; 4. First wiring harness bracket; 5. Faceplate hanging bracket; 6. Extension motor mounting bracket; 7. Right side riveting assembly of leg support frame; 8. Left side riveting assembly of leg support frame; 9. Slide rail assembly; 10. Slide rail body; 11. Sliding bracket; 12. Snap-fit ​​mounting bracket; 13. Extension section motor; 14. Rotating rod; 15. Eccentric push plate; 16. Motor mounting bracket; 17. Deployment motor; 18. Second wiring harness bracket; 19. Third wiring harness bracket. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In one embodiment: Refer to Figure 1-5 A leg support assembly includes: a leg support assembly 1, a cover plate spot welding assembly 2, an extension section motor 13, and an unfolding motor 17.

[0019] In this embodiment, the leg support assembly 1 consists of a frame welding assembly and a slide rail assembly 9. The frame welding assembly includes an extension motor mounting bracket 6, a right leg support frame riveting assembly 7, and a left leg support frame riveting assembly 8. One end of the right leg support frame riveting assembly 7 and the left leg support frame riveting assembly 8 are fixed to the bottom of the extension motor mounting bracket 6 by brackets to form a stable frame foundation.

[0020] In this embodiment, the cover plate spot welding assembly 2 includes a leg support cover plate 3, which is fitted on the top of the slide rail assembly 9 and can move synchronously with the slide rail assembly 9 to ensure the integrity of the leg support during use.

[0021] In this embodiment, the extension section motor 13 cooperates with the slide rail assembly 9 to realize the push-pull movement of the cover plate spot welding assembly 2; the unfolding motor 17 cooperates with the right side riveting assembly 7 and the left side riveting assembly 8 of the leg support frame to realize the height adjustment of the other end of the right side riveting assembly 7 and the left side riveting assembly 8 of the leg support frame, so as to meet the leg support needs under different usage scenarios.

[0022] In this embodiment, the slide rail assembly 9 includes two slide rail bodies 10 and a sliding bracket 11. The two slide rail bodies 10 are located on both sides of the extension motor mounting bracket 6 and are fixedly connected to the extension motor mounting bracket 6, providing a stable track for the movement of the sliding bracket 11. The sliding bracket 11 is C-shaped, and the bottom of its two extended portions slides against the inner wall of the adjacent slide rail body 10 through sliders, ensuring that the sliding bracket 11 can move smoothly along the slide rail body 10. The extension section motor 13 is fixedly installed at the bottom of the extension motor mounting bracket 6. One end of the telescopic screw of the extension section motor 13 is fixedly connected to the bottom of the sliding bracket 11. When the extension section motor 13 is started, the telescopic screw will extend or retract accordingly, thereby driving the sliding bracket 11 to move horizontally along the slide rail body 10, realizing the push-pull action of the sliding bracket 11.

[0023] In this embodiment, two snap-fit ​​mounting brackets 12 are fixed on both sides of the sliding bracket 11. Each of the two snap-fit ​​mounting brackets 12 has two snap holes at its bottom for detachable connection with the leg support cover plate 3. A faceplate mounting bracket 5 is fixed between the inner walls of the adjacent sides of the leg support cover plate 3. The bottom of each faceplate mounting bracket 5 is bent, and the bent portion has multiple snaps. These snaps engage with the snap holes on the adjacent snap-fit ​​mounting brackets 12. During assembly, aligning the snaps at the bottom of the faceplate mounting bracket 5 with the snap holes of the snap-fit ​​mounting bracket 12 and pressing them together completes the installation and assembly of the leg support cover plate 3 and the sliding bracket 11. This allows the leg support cover plate 3 to move synchronously with the sliding bracket 11, ensuring the stable implementation of the leg support extension function.

[0024] In this embodiment, both the right-side riveting assembly 7 and the left-side riveting assembly 8 of the leg support frame are composed of multiple connecting rod frames hinged together. This hinged structure allows the two riveting assemblies a certain degree of freedom of movement, facilitating height adjustment. A common rotating rod 14 is rotatably mounted between the right-side riveting assembly 7 and the left-side riveting assembly 8 of the leg support frame, providing a support point for the synchronous movement of the two assemblies. Simultaneously, a common motor mounting bracket 16 is fixedly mounted between the right-side riveting assembly 7 and the left-side riveting assembly 8 of the leg support frame. The motor mounting bracket 16 not only securely combines the two riveting assemblies but also ensures that they move synchronously during movement, preventing unilateral offset.

[0025] In this embodiment, the unfolding motor 17 is fixedly installed on one side of the motor mounting bracket 16, and an eccentric push plate 15 is fixedly sleeved on the outer wall of the rotating rod 14. One end of the telescopic screw of the unfolding motor 17 is hinged to the eccentric end of the eccentric push plate 15. When it is necessary to adjust the height of the other end of the right riveting assembly 7 and the left riveting assembly 8 of the leg support frame, the unfolding motor 17 is started. The telescopic screw of the unfolding motor 17 will extend and retract, thereby pushing the eccentric push plate 15 to move the rotating rod 14. During the movement of the rotating rod 14, it will generate a thrust on the connecting rod frame of the right riveting assembly 7 and the left riveting assembly 8 of the leg support frame, causing multiple connecting rod frames to move around the hinge point, thereby realizing the unfolding or retraction of the two riveting assemblies, achieving the purpose of end height adjustment to adapt to the leg support height requirements of different users.

[0026] This application can be used in the field of automotive manufacturing technology, or in other fields applicable to this application.

[0027] In another embodiment: Reference Figure 3 , 4 5. A car seat leg support assembly, which is applied to the field of automotive manufacturing technology; In this embodiment, a first wiring harness bracket 4 is fixedly installed on the inner wall of one side of the leg rest cover plate 3, and a second wiring harness bracket 18 and multiple third wiring harness brackets 19 are fixedly installed on the bottom of the extension motor mounting bracket 6. During the assembly and use of this car seat leg rest assembly, the relevant wiring harnesses can be respectively clipped onto the first wiring harness bracket 4, the second wiring harness bracket 18, and the third wiring harness brackets 19. These wiring harness brackets are used to fix the wiring harnesses at different positions, preventing the wiring harnesses from becoming tangled, worn, or loose during the movement of the leg rest, and ensuring the stability and safety of the electrical connection of the entire assembly.

[0028] However, as is well known to those skilled in the art, the working principles and wiring methods of the extension motor 13 and the unfolding motor 17 are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0029] The working principle and usage process of this technical solution are as follows: When the car seat leg support assembly is working, if it is necessary to adjust the extension length of the leg support cover 3, the extension section motor 13 can be started. The extension section motor 13 is fixed to the bottom of the extension motor mounting bracket 6, and one end of its telescopic screw is connected to the bottom of the sliding bracket 11. After starting, the telescopic screw will drive the sliding bracket 11 to move. The sliding bracket 11 can move stably horizontally along the corresponding slide rail body 10. The leg support cover 3 is fitted on the top of the slide rail assembly 9. The bottom of the face sleeve hanging bracket 5 between the inner walls on both sides is bent with multiple buckles. These buckles engage with the buckle holes at the bottom of the mounting bracket 12 on both sides of the sliding bracket 11, so that the leg support cover 3 can be fixedly installed on the sliding bracket 11 and complete synchronous movement, thereby realizing the push and pull movement of the cover spot welding assembly 2 and meeting the usage requirements of different extension lengths of the leg support cover 3.

[0030] When the height of the leg support end needs to be adjusted, the unfolding motor 17 is activated. The unfolding motor 17 is fixed to one side of the motor mounting bracket 16, and one end of the telescopic lead screw of the unfolding motor 17 is hinged to the eccentric end of the eccentric push plate 15. Therefore, after the unfolding motor 17 is activated, the telescopic lead screw will push the eccentric push plate 15 and drive the rotating rod 14 to move, thereby realizing the unfolding or retraction of the connecting rod frame of the two riveted assemblies, and thus realizing the adjustment of its end height to adapt to different support requirements.

[0031] Throughout the operation, the first wiring harness bracket 4 on the inner wall of one side of the leg support cover 3 will clamp and fix the wiring harness near the cover. The second wiring harness bracket 18 and multiple third wiring harness brackets 19 at the bottom of the extension motor mounting bracket 6 will clamp and fix the corresponding wiring harness in this area to prevent the wiring harness from getting tangled or worn during the movement of various components, thereby ensuring the stability of the entire leg support assembly.

[0032] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A car seat leg support assembly, characterized in that, include: The leg support assembly (1) includes a frame welding assembly and a slide rail assembly (9). The frame welding assembly includes an extension motor mounting bracket (6), a right leg support frame riveting assembly (7), and a left leg support frame riveting assembly (8). One end of the right leg support frame riveting assembly (7) and the left leg support frame riveting assembly (8) is fixed to the extension motor mounting bracket (6). Cover plate spot welding assembly (2), the cover plate spot welding assembly (2) includes leg support cover plate (3), the leg support cover plate (3) is sleeved on the top of slide rail assembly assembly (9) and can move synchronously with slide rail assembly assembly (9); The extension section motor (13) is connected to the slide rail assembly (9) and is used to drive the cover plate spot welding assembly (2) to push and pull. The unfolding motor (17) is connected to the right riveting assembly (7) and the left riveting assembly (8) of the leg support frame, and is used to adjust the height of the other end of the right riveting assembly (7) and the left riveting assembly (8) of the leg support frame. The extension section motor (13) drives the slide rail assembly (9) to move, and drives the leg support cover plate (3) to push and pull to adjust the extension length; the unfolding motor (17) drives the right side riveting assembly (7) of the leg support frame and the left side riveting assembly (8) of the leg support frame to unfold and retract to adjust the end height.

2. The automotive seat legrest assembly of claim 1, wherein, The slide rail assembly (9) includes two slide rail bodies (10) and a sliding bracket (11). The two slide rail bodies (10) are located on both sides of the extension motor mounting bracket (6) and are fixedly connected to the extension motor mounting bracket (6). The sliding bracket (11) is C-shaped, and its bottom ends are slidably connected to the slide rail body (10) through sliders. The extension section motor (13) is fixed to the bottom of the extension motor mounting bracket (6). One end of the extension section motor (13)'s telescopic screw is fixedly connected to the bottom of the sliding bracket (11) to drive the sliding bracket (11) to move horizontally along the slide rail body (10).

3. The automotive seat legrest assembly of claim 2, wherein, Both sides of the sliding bracket (11) are fixed with snap-fit ​​mounting brackets (12), and the bottom of the snap-fit ​​mounting brackets (12) is provided with snap holes; both sides of the inner wall of the leg support cover plate (3) are fixed with face cover hanging brackets (5), and the bottom of the face cover hanging brackets (5) is bent and provided with buckles. The buckles engage with the snap holes of the snap-fit ​​mounting brackets (12), so that the leg support cover plate (3) and the sliding bracket (11) are fixed and move synchronously.

4. The automotive seat legrest assembly of claim 1, wherein, The right riveting assembly (7) and the left riveting assembly (8) of the leg support frame are both composed of multiple connecting rod frames hinged together. A rotating rod (14) is rotatably installed between the right riveting assembly (7) and the left riveting assembly (8) of the leg support frame, and a motor mounting bracket (16) is fixed thereon to achieve synchronous movement.

5. The automotive seat legrest assembly of claim 4, wherein, The unfolding motor (17) is fixed to one side of the motor mounting bracket (16). An eccentric push plate (15) is fixed to the outer wall of the rotating rod (14). One end of the telescopic screw of the unfolding motor (17) is hinged to the eccentric end of the eccentric push plate (15) to push the right riveting assembly (7) of the leg support frame and the left riveting assembly (8) of the leg support frame to unfold and retract, thereby adjusting the height of its end.

6. The automotive seat legrest assembly of claim 1, wherein, The inner wall of one side of the leg support cover (3) is fixed with a first wire harness bracket (4), and the bottom of the extension motor mounting bracket (6) is fixed with a second wire harness bracket (18) and a third wire harness bracket (19) to secure the wire harness and prevent the wire harness from getting tangled or worn during movement.

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