A four-bar link modesty mechanism
By designing a four-bar linkage concealing mechanism, and using components such as upper and lower covers and return springs to conceal the gaps between the linkages, the problem of the exposed four-bar linkage affecting aesthetics and safety is solved, thereby improving both the aesthetics and safety of the seat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FAURECIA AUTO PARTS CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-24
AI Technical Summary
When the four-bar linkage is in the extended state, the exposed portion affects the aesthetics of the seat and poses a safety hazard of pinching fingers.
A four-bar linkage for covering mechanism was designed, comprising an upper cover, a lower cover, a first return spring, and a second return spring. The movement of the covering components is restricted by structures such as guide posts and limiting grooves to ensure the covering gap when the upper and lower linkages move.
It improves the aesthetics of the seat, avoids the safety hazard of pinching hands, and ensures the smoothness and safety of the linkage movement.
Smart Images
Figure CN224545801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat accessories, and in particular to a four-bar linkage mechanism. Background Technology
[0002] Currently, to facilitate rear seat passengers placing personal belongings or working, small tables are installed on the back of the front seats. To ensure the small tables are foldable and stable when opened, they are connected to the front seats via a four-bar linkage. Since the four-bar linkage moves the small tables from closed to open, the travel of the four-bar linkage is usually within a fan-shaped range of about 100°. Therefore, there cannot be any hard stops within this range, which would result in a gap almost the thickness of the linkage being exposed when it is unfolded. This would affect the aesthetics of the seat and also pose a safety hazard of pinching fingers.
[0003] The technical problem to be solved by this application is: how to cover the exposed part of the four-bar linkage when it is in the deployed state. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a four-bar linkage for covering up shame.
[0005] The technical solution adopted by this utility model is as follows: a four-bar linkage for covering up modesty, including a back plate, an upper linkage, a lower linkage, and a modesty covering assembly. The modesty covering assembly includes an upper cover, a lower cover, and a second return spring. The upper cover is disposed between the upper linkage and the lower linkage. The upper cover is provided with a guide post, which is connected to the back plate. The guide post limits the lifting range of the upper cover. One end of the second return spring is connected to the lower cover. The top end of the lower cover is always in contact with the bottom of the lower linkage.
[0006] In some implementations, the guide post is disposed on one side of the upper cover and passes through one side of the upper cover.
[0007] In some embodiments, the covering assembly includes a first return spring, one end of which is connected to a back plate and the other end to an upper cover, the first return spring causing the upper cover to maintain an upward preload.
[0008] In some embodiments, the first reset spring is provided with a first limiting post, which passes through the first reset spring and is connected to the back plate.
[0009] In some embodiments, the back plate is provided with a limiting groove, the lower cover is limited to moving up and down within the limiting groove, a second return spring is provided within the limiting groove, and the other end of the second return spring is connected to the limiting groove.
[0010] In some embodiments, the lower cover is provided with a connecting protrusion, the limiting groove is provided with a fixing protrusion, and one end of the second reset spring is sleeved on the connecting protrusion and the other end is sleeved on the fixing protrusion.
[0011] In some embodiments, the sidewall of the limiting groove is provided with a guide groove, and the lower cover is provided with a guide protrusion, which moves along the guide groove for limiting.
[0012] In some embodiments, a limiting protrusion, a limiting spring, and a fixing groove are provided on one side of the lower cover. The limiting spring is disposed in the fixing groove, and one end of the limiting protrusion abuts against the limiting spring and the other end abuts against the side wall of the limiting groove.
[0013] In some embodiments, the bottom of the upper cover has an upwardly inclined surface.
[0014] In some embodiments, the bottom of the lower cover has a downwardly sloping surface.
[0015] The beneficial effects of this utility model are as follows:
[0016] This four-bar linkage privacy mechanism incorporates a privacy component. The upper and lower covers of the privacy component can change position as the upper and lower linkages move, thereby consistently covering any gaps exposed during the movement of the upper and lower linkages. This improves the aesthetics of the seat and avoids the safety hazard of fingers being pinched in the gaps. Attached Figure Description
[0017] Figure 1 This is a front view of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the rear side of the structure of this utility model;
[0019] Figure 3 for Figure 2 Enlarged schematic diagram of structure labeled A;
[0020] Figure 4 for Figure 2 Enlarged schematic diagram of the structure labeled B;
[0021] Figure 5 This is an exploded view of the lower cover structure;
[0022] The labels and names in the diagram correspond as follows: 1. Backplate; 2. Upper connecting rod; 3. Lower connecting rod; 4. Covering assembly; 11. Activity area; 12. Limiting groove; 121. Fixing protrusion; 122. Guide groove; 41. Upper cover; 42. Lower cover; 43. First return spring; 44. Second return spring; 45. Guide post; 46. First limiting post; 421. Connecting protrusion; 422. Guide protrusion; 423. Limiting protrusion; 424. Limiting spring; 425. Fixing groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a four-bar linkage for covering up modesty, including a back plate 1, an upper linkage 2, a lower linkage 3, and a modesty covering assembly 4. One end of the upper linkage 2 and one end of the lower linkage 3 are respectively rotated at an upper limit on the back plate 1, and the upper linkage 2 and the corresponding lower linkage 3 are arranged vertically in relation to each other.
[0025] The back panel 1 has an activity area 11, which is the part of the back panel 1 that faces the passenger and is exposed.
[0026] The modesty assembly 4 includes an upper cover 41, a lower cover 42, a first return spring 43, and a second return spring 44. The upper connecting rod 2, upper cover 41, lower connecting rod 3, and lower cover 42 move within the active area 11. The upper cover 41 is restricted to movement within the space between the upper connecting rod 2 and the lower connecting rod 3.
[0027] Please see Figure 3 A guide post 45 is provided on one side of the upper cover 41. Both ends of the guide post 45 are connected to the back plate 1. The guide post 45 passes through one side of the upper cover 41 to prevent it from being exposed. There is relative movement between the guide post 45 and the upper cover 41. The guide post 45 limits the lifting range of the upper cover 41. One end of the first return spring 43 is connected to the back plate 1, and the other end is connected to the upper cover 41. The first return spring 43 maintains an upward preload on the upper cover 41. To accommodate the extension and retraction of the first return spring 43, a first limiting post 46 is provided. The first limiting post 46 passes through the first return spring 43, and both ends of the first limiting post 46 are connected to the back plate 1.
[0028] Please see 4 and Figure 5 The back plate 1 is provided with a limiting groove 12, which is connected to the movable area 11. The lower cover 42 is limited in raising and lowering within the limiting groove 12. The second return spring 44 is provided within the limiting groove 12. One end of the second return spring 44 is connected to the limiting groove 12, and the other end is connected to the lower cover 42. The second return spring 44 keeps the upper cover 41 with an upward preload. The lower cover 42 is located below the lower connecting rod 3, and the top of the lower cover 42 is always in contact with the bottom of the lower connecting rod 3.
[0029] In order to fix the position of the second return spring 44, the lower cover 42 is provided with a connecting protrusion 421, and the limiting groove 12 is provided with a fixing protrusion 121. One end of the second return spring 44 is sleeved on the connecting protrusion 421 and the other end is sleeved on the fixing protrusion 121.
[0030] To avoid the movement path of the lower connecting rod 3, the side wall of the limiting groove 12 is provided with a guide groove 122, and the lower cover 42 is provided with a guide protrusion 422. The guide protrusion 422 moves along the guide groove 122 for limitation. The guide groove 122 extends from top to bottom and the extension direction is from the outside of the back plate to the inside of the back plate. The movement of the lower cover 42 along the guide groove 122 can avoid interfering with the path of the lower connecting rod 3 moving towards the inside of the back plate when it is closed, and can also cover the gap below the lower connecting rod 3 when it is open.
[0031] To prevent the lower cover 42 from wobbling within the limiting groove 12, a limiting protrusion 423, a limiting spring 424, and a fixing groove 425 are provided on one side of the lower cover 42. The limiting spring 424 is disposed within the fixing groove 425. One end of the limiting spring 424 abuts against the limiting protrusion 423, and the other end abuts against the bottom of the fixing groove 425. One end of the limiting protrusion 423 abuts against the limiting spring 424, and the other end abuts against the side wall of the limiting groove 12, thereby preventing the lower cover 42 from wobbling laterally within the limiting groove 12.
[0032] In order for the upper cover 41 and the lower cover 42 to move smoothly, the bottom of the upper cover 41 is provided with an upward inclined surface, and the bottom of the lower cover 42 is provided with a downward inclined surface.
[0033] The working principle and usage process of this utility model: During the opening or closing process of the upper connecting rod 2 and the lower connecting rod 3, the positions of the upper cover 41 and the lower cover 42 will change with the movement of the upper connecting rod 2 and the lower connecting rod 3. However, the upper cover 41 always covers the gap between the upper connecting rod 2 and the lower connecting rod 3, and the lower cover 42 always covers the gap below the lower connecting rod 3.
[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A four-bar linkage for covering one's face, characterized in that, The device includes a back panel (1), an upper connecting rod (2), a lower connecting rod (3), and a privacy covering assembly (4). The privacy covering assembly (4) includes an upper cover (41), a lower cover (42), and a second return spring (44). The upper cover (41) is located between the upper connecting rod (2) and the lower connecting rod (3). The upper cover (41) is provided with a guide post (45). The guide post (45) is connected to the back panel (1). The guide post (45) limits the lifting range of the upper cover (41). One end of the second return spring (44) is connected to the lower cover (42). The top end of the lower cover (42) is always in contact with the bottom of the lower connecting rod (3).
2. The four-bar linkage shame-covering mechanism according to claim 1, characterized in that, The guide post (45) is disposed on one side of the upper cover (41) and passes through one side of the upper cover (41).
3. The four-bar linkage shame-covering mechanism according to claim 1, characterized in that, The covering component (4) includes a first return spring (43), one end of which is connected to the back plate (1) and the other end is connected to the upper cover (41). The first return spring (43) causes the upper cover (41) to maintain an upward preload.
4. A four-bar linkage for covering one's private parts according to claim 3, characterized in that, The first reset spring (43) is provided with a first limiting post (46), the first limiting post (46) passes through the first reset spring (43), and the first limiting post (46) is connected to the back plate (1).
5. A four-bar linkage for covering up shame according to claim 1, characterized in that, The back plate (1) is provided with a limiting groove (12), and the lower cover (42) is limited to lifting and lowering within the limiting groove (12). The second reset spring (44) is provided within the limiting groove (12), and the other end of the second reset spring (44) is connected to the limiting groove (12).
6. A four-bar linkage for covering one's private parts according to claim 5, characterized in that, The lower cover (42) is provided with a connecting protrusion (421), the limiting groove (12) is provided with a fixing protrusion (121), and one end of the second reset spring (44) is sleeved on the connecting protrusion (421) and the other end is sleeved on the fixing protrusion (121).
7. A four-bar linkage for covering up shame according to claim 5, characterized in that, The side wall of the limiting groove (12) is provided with a guide groove (122), and the lower cover (42) is provided with a guide protrusion (422). The guide protrusion (422) moves along the guide groove (122) for limiting.
8. A four-bar linkage for covering up shame according to claim 5, characterized in that, The lower cover (42) has a limiting protrusion (423), a limiting spring (424) and a fixing groove (425) on one side. The limiting spring (424) is set in the fixing groove (425). One end of the limiting protrusion (423) abuts against the limiting spring (424) and the other end abuts against the side wall of the limiting groove (12).
9. A four-bar linkage for covering one's private parts according to claim 1, characterized in that, The bottom of the upper cover (41) is provided with an upwardly inclined surface.
10. A four-bar linkage for covering one's private parts according to claim 1, characterized in that, The bottom of the lower cover (42) is provided with a downwardly inclined surface.