Four-direction leg support mechanism of automobile seat

By designing a four-way leg support mechanism for the car seat, the multi-directional adjustment of the leg support is achieved by using the motor-driven lead screw and rack rack, the comfort problem caused by the inability to adjust the existing seat is solved, and the cleaning difficulties are solved through the storage box, improving the practicality and comfort of the seat.

CN223237449UActive Publication Date: 2025-08-19SHANGHAI CHENTAI AUTOMOTIVE TECH CO LTD
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Patent Information

Application Number
CN202422459251.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-08-19
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

The leg support function of existing car seats cannot be adjusted, resulting in passengers not being able to obtain optimal comfort when riding, and there are problems such as poor blood circulation in the legs and difficulty in cleaning.

Method used

A four-way leg support mechanism for the car seat is designed, and the left and right adjustments of the leg support are achieved through the motor-driven lead screw and rack mechanism, and a storage box is equipped to collect snack residues to simplify the cleaning process.

Benefits of technology

It realizes multi-directional adjustment of leg rests, improves riding comfort, ensures smooth blood circulation in the legs, simplifies the difficulty of cleaning snack residues, and improves the practicality and comfort of the seat.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile seats, and discloses an automobile seat four-direction leg support mechanism which comprises a seat, a connecting part is fixedly installed at the bottom of the seat, a connecting shaft is fixedly installed at the output end of a first motor, a first connecting rod is fixedly installed above the connecting shaft, and a second connecting rod is fixedly installed above the first connecting rod. And a leg support is fixedly mounted above the first connecting rod. The fixing plate is fixedly mounted at the bottom of the seat, the second motor is started to drive the lead screw to be meshed with the moving plate, so that the moving plate drives the guide block to move front and back through the second connecting rod, and the left-right adjusting effect is achieved; the gear is fixedly connected with the rack, after the third motor is started to enable the gear to be meshed with the rack, the connecting plate can be driven to move up and down through the sliding action of the first sliding block and the second sliding groove, and therefore the vertical height adjusting effect is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, and more specifically, to a four-direction leg support mechanism for an automobile seat. Background Art

[0002] Currently, the support range of the seat cushion of most car seats for the human body is fixed and cannot be adjusted. As a result, the seat cushion of some tall passengers cannot provide comprehensive support for the legs when riding, thus failing to achieve optimal riding comfort, and ultimately causing passengers to feel tired after a long ride. For this situation, although some car seats have begun to add leg support functions, most of them are drawer-type structures and cannot be adjusted in height. If they are not adjusted to the appropriate position, they will not only fail to support the legs, but also affect the blood circulation of the legs, causing numbness in the legs. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a four-way leg support mechanism for a car seat, which has the advantages of being easy to adjust and improving comfort.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-way leg support mechanism for a car seat, comprising a seat, a connecting component fixedly installed on the bottom of the seat, a first slide groove provided inside the connecting component, a guide block slidably connected inside the first slide groove, a connecting block fixedly installed on the outside of the guide block, a second slide groove provided inside the connecting block, a first slider slidably connected inside the second slide groove, a connecting plate fixedly installed on the right side of the first slider, a support plate fixedly installed on the right side of the connecting plate, four support plates, a first motor fixedly installed in front of the frontmost support plate, a connecting shaft fixedly installed on the output end of the first motor, a first connecting rod fixedly installed above the connecting shaft, and a leg support fixedly installed above the first connecting rod.

[0005] As a preferred technical solution of the present invention, a fixed plate is fixedly installed on the bottom of the seat, a second motor is fixedly installed on the left side of the fixed plate, a screw is fixedly installed on the output end of the second motor, a movable plate is engaged on the outer side of the screw, and a second connecting rod is fixedly installed on both the front and rear ends of the movable plate, and the second connecting rod is fixedly connected to the guide block.

[0006] As a preferred technical solution of the present invention, a rack is fixedly installed on the side of the connecting block away from the movable plate, and a third motor is fixedly installed on the side of the two support plates located at the front and rear of the four support plates close to the movable plate. A gear is fixedly installed on the output end of the third motor, and the gear is meshing with the rack.

[0007] As an optimal technical solution of the present invention, a fixing component is fixedly installed on the bottom of the connecting block, a second slider is slidably connected inside the fixing component, a storage box is fixedly installed on the right side of the second slider, and a collection bin is opened inside the storage box.

[0008] As a preferred technical solution of the present invention, there are two connecting parts, two first slide grooves and two guide blocks, the two connecting parts and the two first slide grooves are located at the bottom of the seat, the fixing plate is located on the left side of the connecting part, and the fixing plate is located in the middle of the two connecting parts.

[0009] As a preferred technical solution of the present invention, there are two connecting blocks, the two connecting blocks are fixedly connected to the two guide blocks respectively, and the two connecting blocks are both located on the right side of the movable plate.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. The utility model is characterized in that a fixed plate is fixedly installed at the bottom of the seat, a second motor is fixedly installed on the left side of the fixed plate, a lead screw is fixedly installed at the output end of the second motor, a movable plate is meshed on the surface of the lead screw, and the movable plate is fixedly connected to the guide block through the second connecting rod. When the second motor is started, the lead screw is driven to mesh with the movable plate, so that the movable plate drives the guide block to move forward and backward through the second connecting rod, thereby achieving the effect of left and right adjustment. At the same time, since a gear is fixedly installed at the output end of the third motor, the gear and the rack are fixedly connected. After starting the third motor to mesh the gear with the rack, the connecting plate can be driven to move up and down through the sliding action of the first slider and the second slide groove, thereby achieving the effect of vertical height adjustment.

[0012] 2. The utility model has a fixing assembly fixedly installed on the bottom of the connecting block, a second slider is slidably connected inside the fixing assembly, a storage box is fixedly installed on the right side of the second slider, and a collection bin is provided inside the storage box. The storage box can be installed under the support plate through the sliding action of the second slider and the fixing assembly. Since snacks may be eaten while sitting in the car, the residue of the snacks may fall into the gap between the seat and the leg rest when eating snacks. Most of the existing seats and the first slide grooves in cars are connected by leather materials, and the gap is large and difficult to clean. Now, when residue appears, it can fall into the interior of the storage box through the gap between the seat and the first slide groove. At the same time, the storage box can be disassembled by the sliding action of the second slider and the fixing assembly, thereby achieving the effect of convenient cleaning and preventing residues from being everywhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the seat cushion structure of the utility model;

[0015] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the structure at A;

[0016] Figure 4 This is a schematic diagram of the leg support structure of the utility model;

[0017] Figure 5 For this utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0018] In the figure: 1. seat; 2. connecting part; 3. first slide; 4. guide block; 5. connecting block; 6. second slide; 7. first slider; 8. connecting plate; 9. support plate; 10. first motor; 11. connecting shaft; 12. first connecting rod; 13. leg support; 14. fixed plate; 15. second motor; 16. lead screw; 17. movable plate; 18. second connecting rod; 19. rack; 20. third motor; 21. gear; 22. fixing assembly; 23. second slider; 24. storage box; 25. collection bin. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 5 As shown, the utility model provides a four-way leg support mechanism for a car seat, comprising a seat 1, a connecting component 2 fixedly installed at the bottom of the seat 1, a first slide groove 3 is provided inside the connecting component 2, a guide block 4 is slidably connected inside the first slide groove 3, a connecting block 5 is fixedly installed on the outside of the guide block 4, a second slide groove 6 is provided inside the connecting block 5, a first slider 7 is slidably connected inside the second slide groove 6, a connecting plate 8 is fixedly installed on the right side of the first slider 7, a support plate 9 is fixedly installed on the right side of the connecting plate 8, there are four support plates 9, a first motor 10 is fixedly installed in front of the frontmost support plate 9, a connecting shaft 11 is fixedly installed on the output end of the first motor 10, a first connecting rod 12 is fixedly installed above the connecting shaft 11, and a leg support 13 is fixedly installed above the first connecting rod 12.

[0021] Starting the first motor 10 can drive the connecting shaft 11 to rotate, and at the same time drive the first connecting rod 12 to rotate through the connecting shaft 11, so that the leg rest 13 is tilted, so that the angle of the leg rest 13 can be adjusted conveniently. When facing legs of different lengths and bending angles, the leg rest 13 can be adjusted and corrected to fit the legs better, thereby improving the comfort of the support of the leg rest 13.

[0022] Among them, a fixed plate 14 is fixedly installed at the bottom of the seat 1, a second motor 15 is fixedly installed on the left side of the fixed plate 14, a screw 16 is fixedly installed on the output end of the second motor 15, a movable plate 17 is engaged with the outer side of the screw 16, and a second connecting rod 18 is fixedly installed at the front and rear ends of the movable plate 17, and the second connecting rod 18 is fixedly connected to the guide block 4.

[0023] Start the second motor 15 to drive the screw 16 to rotate, so that the screw 16 engages with the movable plate 17, so that the movable plate 17 can move left and right on the outside of the screw 16. At the same time, since the movable plate 17 is fixedly installed with the guide block 4 through the second connecting rod 18, and the guide block 4 and the connecting block 5 are fixedly installed, when the movable plate 17 is displaced, it can drive the guide block 4 and the connecting block 5 to move left and right, thereby having the effect of driving the leg support 13 to retract left and right.

[0024] Among them, a rack 19 is fixedly installed on the side of the connecting block 5 away from the movable plate 17, and a third motor 20 is fixedly installed on the side of the two support plates 9 located at the front and rearmost of the four support plates 9 close to the movable plate 17. A gear 21 is fixedly installed on the output end of the third motor 20, and the gear 21 is in meshing shape with the rack 19.

[0025] Start the third motor 20 to drive the gear 21 to rotate, so that the gear 21 is engaged with the rack 19, and the connecting plate 8 is raised and lowered through the sliding action of the first slider 7 and the second slide groove 6, so that the height of the four support plates 9 is adjusted, so that the leg rest 13 has the effect of adjusting the vertical height.

[0026] Among them, a fixing component 22 is fixedly installed at the bottom of the connecting block 5, and a second slider 23 is slidably connected inside the fixing component 22. A storage box 24 is fixedly installed on the right side of the second slider 23, and a collection bin 25 is opened inside the storage box 24.

[0027] By the sliding action of the second slider 23 and the fixing assembly 22, the storage box 24 can be installed under the support plate 9. Since snacks may be eaten while sitting inside the car, the residue of the snacks may fall into the gap between the seat 1 and the leg rest 13. The seats 1 and the first slide groove 3 in most existing cars are connected by leather materials, and the gap is large and difficult to clean. Now, when residue appears, it can fall into the interior of the storage box 24 through the gap between the seat 1 and the first slide groove 3. At the same time, the storage box 24 can be disassembled by the sliding action of the second slider 23 and the fixing assembly 22, so as to achieve the effect of convenient cleaning and preventing residues from being everywhere.

[0028] Among them, there are two connecting parts 2, two first slide grooves 3 and two guide blocks 4, the two connecting parts 2 and the two first slide grooves 3 are all located at the bottom of the seat 1, the fixing plate 14 is located on the left side of the connecting part 2, and the fixing plate 14 is located in the middle of the two connecting parts 2.

[0029] The two guide blocks 4 slide inside the two first slide grooves 3 respectively. Their main function is to ensure the stability of the device as a whole while allowing the equipment to move, and to prevent the height inconsistency between the two sides of the two guide blocks 4 from causing the leg rest 13 to be unbalanced.

[0030] There are two connecting blocks 5 , which are fixedly connected to the two guide blocks 4 respectively. Both connecting blocks 5 are located on the right side of the movable plate 17 .

[0031] The two connecting blocks 5 mainly function to connect the leg rest 13 , thereby improving the efficiency of the leg rest 13 in lifting and lowering, and providing certain support to the leg rest 13 when it is lifted and lowered, thereby ensuring the overall stability.

[0032] The working principle and use process of this utility model:

[0033] First, a fixed plate 14 is fixedly mounted on the bottom of the seat 1, a second motor 15 is fixedly mounted on the left side of the fixed plate 14, a lead screw 16 is fixedly mounted on the output end of the second motor 15, a movable plate 17 is engaged with the surface of the lead screw 16, and the movable plate 17 is fixedly connected to the guide block 4 via a second connecting rod 18. When the second motor 15 is started, the lead screw 16 is engaged with the movable plate 17, so that the movable plate 17 drives the guide block 4 to move forward and backward through the second connecting rod 18, thereby achieving a left-right adjustment effect;

[0034] At the same time, a gear 21 is fixedly installed at the output end of the third motor 20. The gear 21 is fixedly connected to the rack 19. After the third motor 20 is started to engage the gear 21 with the rack 19, the connecting plate 8 can be driven to move up and down through the sliding action of the first slider 7 and the second slide groove 6, thereby achieving the effect of vertical height adjustment;

[0035] Secondly, since a fixing assembly 22 is fixedly installed at the output end of the first motor 10, a first connecting rod 12 is fixedly installed above the connecting shaft 11, and a leg support 13 is fixedly installed above the first connecting rod 12, starting the first motor 10 can drive the connecting shaft 11 to rotate, and at the same time drive the first connecting rod 12 to rotate through the connecting shaft 11, so that the leg support 13 is tilted, so that the angle of the leg support 13 can be easily adjusted. When facing legs of different lengths and bending angles, the leg support 13 can be adjusted to fit the legs better, thereby improving the comfort of the support of the leg support 13;

[0036] Finally, since a fixing component 22 is fixedly installed at the bottom of the connecting block 5, a second slider 23 is slidably connected inside the fixing component 22, and a storage box 24 is fixedly installed on the right side of the second slider 23. A collection bin 25 is provided inside the storage box 24, and the storage box 24 can be installed under the support plate 9 through the sliding action of the second slider 23 and the fixing component 22. Since snacks may be eaten while sitting inside the car, the residue of the snacks may fall into the gap between the seat 1 and the leg support 13 when eating snacks. The seats 1 and the first slide groove 3 in most existing cars are connected by leather materials, and the gap is large and difficult to clean. Now, when residue appears, it can fall into the interior of the storage box 24 through the gap between the seat 1 and the first slide groove 3. At the same time, the storage box 24 can be disassembled by the sliding action of the second slider 23 and the fixing component 22, thereby achieving the effect of convenient cleaning and preventing residues from being everywhere.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-way leg support mechanism for a car seat, comprising a seat (1), characterized in that: The bottom of the seat (1) is fixedly installed with a connecting component (2), a first slide groove (3) is provided inside the connecting component (2), a guide block (4) is slidably connected inside the first slide groove (3), a connecting block (5) is fixedly installed on the outside of the guide block (4), a second slide groove (6) is provided inside the connecting block (5), a first slider (7) is slidably connected inside the second slide groove (6), a connecting plate (8) is fixedly installed on the right side of the first slider (7), a support plate (9) is fixedly installed on the right side of the connecting plate (8), there are four support plates (9), a first motor (10) is fixedly installed in front of the support plate (9) located at the front, a connecting shaft (11) is fixedly installed on the output end of the first motor (10), a first connecting rod (12) is fixedly installed above the connecting shaft (11), and a leg support (13) is fixedly installed above the first connecting rod (12).

2. The four-way leg support mechanism for a car seat according to claim 1, characterized in that: A fixed plate (14) is fixedly installed at the bottom of the seat (1), a second motor (15) is fixedly installed on the left side of the fixed plate (14), a lead screw (16) is fixedly installed at the output end of the second motor (15), a movable plate (17) is engaged on the outer side of the lead screw (16), and a second connecting rod (18) is fixedly installed at both the front and rear ends of the movable plate (17), and the second connecting rod (18) is fixedly connected to the guide block (4).

3. The four-way leg support mechanism for a car seat according to claim 1, characterized in that: A rack (19) is fixedly mounted on the side of the connecting block (5) away from the movable plate (17); a third motor (20) is fixedly mounted on the side of the two support plates (9) located at the front and rear of the four support plates (9) close to the movable plate (17); a gear (21) is fixedly mounted on the output end of the third motor (20); and the gear (21) is in meshing engagement with the rack (19).

4. The four-way leg support mechanism for a car seat according to claim 1, characterized in that: A fixing assembly (22) is fixedly installed at the bottom of the connecting block (5), a second slider (23) is slidably connected inside the fixing assembly (22), a storage box (24) is fixedly installed on the right side of the second slider (23), and a collection bin (25) is provided inside the storage box (24).

5. The four-way leg support mechanism for a car seat according to claim 2, characterized in that: There are two connecting parts (2), two first slide grooves (3) and two guide blocks (4), the two connecting parts (2) and the two first slide grooves (3) are both located at the bottom of the seat (1), the fixing plate (14) is located on the left side of the connecting part (2), and the fixing plate (14) is located in the middle of the two connecting parts (2).

6. The four-way leg support mechanism for a car seat according to claim 2, characterized in that: There are two connecting blocks (5), and the two connecting blocks (5) are fixedly connected to the two guide blocks (4) respectively. The two connecting blocks (5) are both located on the right side of the movable plate (17).