Covering mechanism of connecting rod movement mechanism and automobile seat
Patent Information
- Application Number
- CN202522380431.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-10
AI Technical Summary
[0003]然而,现有连杆机构的安装结构存在显著的技术缺陷:为适配连杆机构的全行程运动,避让孔洞需保持开放状态,导致功能部件展开至使用位置后,避让孔洞处于裸露状态
[0022]1、采用本实用新型提供的遮蔽机构,当功能部件向下展开后,联动遮蔽组件能够遮盖背板后侧的避让孔,确保座椅后侧无外露的孔洞,外观质量更好。
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Figure CN224810576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, specifically to a shielding mechanism for a linkage motion mechanism and an automotive seat. Background Technology
[0002] As the automotive industry upgrades towards high-end and comfortable features, consumers are demanding higher levels of refinement and functional reliability from car interiors. In automotive interior systems, linkage mechanisms, due to their compact structure and stable transmission, are widely used in various deployable functional components, such as footrests and small tables behind seatbacks. The working principle of such linkage mechanisms is typically as follows: the functional component (such as the footrest or small table) is rotatably connected to the interior mounting base (such as the seatback assembly) via a linkage mechanism. To meet the travel requirements of the linkage mechanism during deployment and retraction, a through-hole is required on the mounting base. The linkage mechanism passes through this hole and is then connected to the functional component. When the drive linkage assembly swings around its pivot point, it can drive the functional component to be deployed or retracted.
[0003] However, the existing linkage mechanism mounting structure has a significant technical flaw: to accommodate the full-stroke movement of the linkage mechanism, the clearance holes must remain open, resulting in the clearance holes being exposed after the functional components are deployed to the use position. Exposed clearance holes not only disrupt the overall appearance of the interior mounting base but also easily accumulate debris, posing a risk of interfering with other moving parts of the seat or creating safety hazards. Utility Model Content
[0004] In view of this, one of the objectives of this utility model is to provide a shielding mechanism for a linkage mechanism that can be precisely synchronized with the movement of the linkage mechanism to achieve shielding of the clearance hole.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A shielding mechanism for a linkage motion mechanism, the key feature of which is that it includes:
[0007] A backrest assembly, the backrest assembly including a back panel, the back panel having clearance holes extending along the height direction;
[0008] A motion linkage, one end of which is rotatably connected inside the backrest assembly, and the other end which passes through the clearance hole and extends outward; the portion of the motion linkage located on the rear side of the back panel is used for mounting functional components; and
[0009] The linkage shielding component is used to cover the avoidance hole when the functional component is unfolded downwards.
[0010] With the above structure, when the functional component needs to be used, the motion link rotates downward around the pivot point inside the backrest assembly. During this rotation, the motion link slides downward synchronously along the extension direction of the clearance hole, thereby driving the functional component to unfold downward from the folded position on the backrest side to the use position. At the same time, the linkage shielding component can move synchronously with the motion link to cover the gap between the motion link and the clearance hole caused by relative movement, thus achieving shielding of the motion mechanism during movement.
[0011] Preferably, the linkage shielding component includes a sliding plate that slides vertically at the clearance hole position. The sliding plate abuts against the moving link, and a power transmission component is provided between the sliding plate and the back plate. The power transmission component applies a thrust that causes the sliding plate to continuously abut against the moving link. With the above structure, when the moving link rotates downward, the sliding plate can stably slide downward synchronously along the extension direction of the clearance hole due to the abutment relationship between the lower end of the sliding plate and the moving link. During this process, the sliding plate always covers the clearance hole area of the back plate, filling the exposed gap between the moving link and the clearance hole caused by relative movement in real time, achieving full-stroke, no-dead-angle shielding of the clearance hole gap.
[0012] Preferably, the power transmission assembly includes a first elastic element installed between the sliding plate and the back plate; the first elastic element is a tension spring, torsion spring, compression spring, or coil spring. With this structure, the first elastic element applies a continuous downward preload to the sliding plate, ensuring that the lower end of the sliding plate remains in close contact with the moving link. When the moving link rotates downward, it generates a downward thrust on the lower end of the sliding plate along the extension direction of the clearance hole. The preload of the first elastic element ensures that the sliding plate and the moving link do not disengage, allowing the sliding plate to slide downward synchronously along the length of the clearance hole as the moving link rotates. During this process, the sliding plate always covers the gap between the moving link and the clearance hole, preventing the gap from being exposed.
[0013] Preferably, the power transmission assembly includes a guide rod, one end of which is rotatably connected to a back plate, and the other end of which is provided with a limiting groove. A limiting post is provided on the sliding plate, and the limiting post is slidably fitted onto the limiting groove. A second elastic element is provided between the guide rod and the back plate, and the guide rod provides preload to the sliding plate through the second elastic element. With this structure, the second elastic element continuously applies preload to the guide rod, causing the guide rod to always have a tendency to rotate in a specific direction around its rotation point with the back plate. This specific direction is the direction that pushes the sliding plate closer to the moving link. This rotational tendency is converted into a thrust on the sliding plate through the cooperation of the limiting groove and the limiting post, thereby ensuring that the lower end of the sliding plate always remains in contact with the moving link. When the moving link rotates downward, it generates a downward pushing force on the lower end of the sliding plate. At this time, the sliding plate slides downward along the extension direction of the clearance hole under the action of the thrust. At the same time, the limiting post slides along the limiting groove of the guide rod. The guide rod rotates around the back plate due to the force of the limiting post. The second elastic element deforms with the rotation of the guide rod and maintains the preload, ensuring that the sliding plate is always in close contact with the moving link during the entire sliding process, and the sliding plate always covers the gap between the clearance hole and the moving link.
[0014] Preferably, the back plate has grooves on both sides of the corresponding clearance hole, and the sliding plate is slidably assembled within the grooves; a roller is provided at the lower end of the sliding plate. With this structure, the grooves provide sliding constraints for the sliding plate along the extension direction of the clearance hole, ensuring effective coverage of the upper gap of the clearance hole. The rollers enable the sliding plate to form rolling contact with the moving link, avoiding direct contact between the lower end of the sliding plate and the moving link, thus preventing wear or abnormal noise and further improving the smoothness of component movement.
[0015] Preferably, the linkage shielding assembly includes a first shielding member rotatably mounted within the backrest assembly. A third elastic element is provided between the first shielding member and the backrest assembly. When the motion linkage rotates downward to unfold the functional component, the third elastic element can push the first shielding member to cover the clearance hole. With the above structure, the clearance hole can be shielded.
[0016] Preferably, the upper end of the first shielding member is rotatably mounted on the back plate above the clearance hole, and the lower end of the first shielding member is rotatably connected to a second shielding member. A fourth elastic element is provided between the first shielding member and the second shielding member. When the moving link rotates downward to unfold the functional component, the fourth elastic element can push the second shielding member to cover the clearance hole. With the above structure, when the moving link rotates downward around the backrest assembly and slides downward along the extension direction of the clearance hole, the moving link will move away from the first shielding member. The third elastic element can adaptively adjust the first shielding member to rotate towards the clearance hole, completing the shielding of the first shielding member. When the moving link continues to rotate, the fourth elastic element can compensate for the fit gap between the second shielding member and the moving link, so that the first shielding member and the second shielding member form a continuous shielding surface, continuously covering the exposed gap between the moving link and the clearance hole until the moving link is fully opened and the second shielding member completes the shielding.
[0017] Preferably, the end of the first shielding member furthest from the second shielding member is configured in an L-shape, allowing the L-shape to fit against the back plate when the moving link rotates downwards to a certain angle; both the third and fourth elastic elements are torsion springs. With this structure, the L-shape design allows the upper end of the first shielding member to form a close fit with the back plate at the end of its movement stroke, improving the stability of the first shielding member structure.
[0018] Preferably, the motion link includes a sequentially bent drive section, a transition section, and an extension section. The extension section is used to connect functional components. The end of the drive section is rotatably mounted on the backrest assembly. The transition section passes through the clearance hole.
[0019] When the functional components are closed, the third elastic element pre-presses the first shielding member onto the transition section, and the fourth elastic element supports the second shielding member onto the drive section. This structure ensures the overall structure remains compact when the functional components are folded, without taking up more space inside the backrest.
[0020] The second objective of this utility model is to provide a car seat, the key of which is that it includes the aforementioned shielding mechanism.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] 1. With the shielding mechanism provided by this utility model, when the functional components are unfolded downwards, the linkage shielding component can cover the avoidance hole on the back panel, ensuring that there are no exposed holes on the back of the seat, resulting in better appearance quality.
[0023] 2. During the unfolding of the functional components, the motion linkage rotates downward around the pivot point inside the backrest assembly. The middle section of the motion linkage slides downward from the upper end of the clearance hole. During this movement, the linkage shielding component moves synchronously with the motion linkage, gradually covering the upper gap between the upper end of the motion linkage and the clearance hole, thus dynamically shielding the exposed clearance hole. This ensures that the seat back area always maintains its overall appearance and significantly enhances the user's perception of the seat's refinement.
[0024] 3. The shielding mechanism can be used on small tables or foot pedals, giving it the advantage of high versatility.
[0025] 4. The car seat provided by this utility model can achieve full-stroke, no-dead-angle shielding of the clearance hole gap, and has the advantages of simple structure and wide applicability. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the shielding mechanism of a linkage motion mechanism;
[0027] Figure 2 This is a side view of the shielding mechanism of the linkage motion mechanism;
[0028] Figure 3 This is a schematic diagram showing the structure of the linkage shielding component 3 in Embodiment 1;
[0029] Figure 4 This is a cross-sectional view of the shielding mechanism of the linkage motion mechanism in Embodiment 1 (with the foot pedal extended).
[0030] Figure 5 This is a partial enlarged view of the shielding mechanism of the linkage motion mechanism in Embodiment 2 (with the foot pedal folded in the folded state).
[0031] Figure 6 This is another enlarged view of the shielding mechanism of the linkage motion mechanism in Embodiment 2 (with the foot pedal extended).
[0032] Figure 7 This is a schematic diagram of the shielding mechanism of the linkage motion mechanism in the folded state of the foot pedal in Embodiment 3. Detailed Implementation
[0033] The present invention will be further described below with reference to the embodiments and accompanying drawings.
[0034] An automobile seat includes a backrest assembly 1 on which a shielding mechanism of a linkage motion mechanism is mounted. The structure of the shielding mechanism of the linkage motion mechanism will be described in detail below.
[0035] like Figure 1 and 2The illustrated shielding mechanism of a linkage motion mechanism includes a backrest assembly 1, a motion link 2, and a linkage shielding assembly 3. The backrest assembly 1 includes a back panel 11 with a clearance hole 111 extending along the height direction. One end of the motion link 2 is rotatably connected inside the backrest assembly 1, and the other end of the motion link 2 passes through the clearance hole 111 and extends outward. The portion of the motion link 2 located behind the back panel 11 is used to mount functional components. In this embodiment, the orientation of the motion link 2 is based on a car seat. When the functional component is unfolded downwards, the linkage shielding assembly 3 can cover the clearance hole 111. The functional component can be a footrest, a small table, or other automotive interior trim that needs to be flipped over. This embodiment will use a footrest as an example for illustration.
[0036] Based on the above structural design, when the foot pedal is needed, the motion link 2 rotates downward around the pivot point inside the backrest assembly 1. The middle section of the motion link 2 slides downward from the upper end of the clearance hole 111, thereby driving the foot pedal to unfold downward from the folded position on the backrest side to the use position. During this movement, the linkage shielding component 3 moves synchronously with the motion link 2, gradually covering the upper gap between the upper end of the motion link 2 and the clearance hole 111, realizing dynamic shielding of the exposed clearance hole, so that the seat back area always maintains the overall appearance, significantly improving the user's perception of the seat's refinement.
[0037] refer to Figures 2 to 4 To ensure that the movement trajectory of the motion link 2 is perfectly aligned with the extension direction of the clearance hole 111, in this embodiment, the motion link 2 includes a drive section 21, a transition section 22, and an extension section 23 that are bent sequentially. The end of the drive section 21 is rotatably mounted on the backrest assembly 1, the transition section 22 passes through the clearance hole 111, and the extension section 23 is used to connect to the foot pedal. In this embodiment, the angles between the transition section 22 and the drive section 21, and between the transition section 22 and the extension section 23, are both the same, both greater than 90°.
[0038] Next, we will further disclose three specific implementation methods of the linkage masking component 3.
[0039] Example 1
[0040] Please refer to Figure 3 The linkage shielding assembly 3 includes a first shielding member 36 rotatably mounted within the backrest assembly 1. A third elastic element 38 is provided between the first shielding member 36 and the backrest assembly 1, and the third elastic element 38 is used to apply preload to the first shielding member 36. Figure 4 It can be seen that when the motion linkage 2 rotates downward to unfold the foot pedal, the third elastic element 38 can push the first shielding member 36 to cover the clearance hole 111, thereby achieving the shielding of the clearance hole 111.
[0041] Further, refer to Figure 3 The upper end of the first shielding member 36 is rotatably mounted on the front side of the back plate 11 above the corresponding clearance hole 111. The lower end of the first shielding member 36 is rotatably connected to the second shielding member 37. A fourth elastic element 39 is provided between the first shielding member 36 and the second shielding member 37. The fourth elastic element 39 is used to apply preload to the second shielding member 37. When the motion linkage 2 rotates downward to unfold the foot pedal, the fourth elastic element 39 can push the second shielding member 37 to cover the clearance hole 111.
[0042] Combination Figure 3 and 4 As shown, when the motion link 2 rotates downward around the backrest assembly 1 and slides downward along the extension direction of the clearance hole 111, the motion link 2 will move away from the first shielding member 36. The third elastic element 38 can adaptively adjust the first shielding member 36 to rotate towards the clearance hole 111, completing the shielding of the first shielding member 36. When the motion link 2 continues to rotate, the fourth elastic element 39 can compensate for the fitting gap between the second shielding member 37 and the motion link 2, so that the first shielding member 36 and the second shielding member 37 form a continuous shielding surface, continuously covering the exposed gap between the motion link 2 and the clearance hole 111 until the motion link 2 is fully opened and the second shielding member 37 completes the shielding. The above structure realizes full-stroke shielding of the motion mechanism during the movement process, ensuring that the upper part of the clearance hole 111 is not exposed at any position of the foot pedal when it is unfolded.
[0043] Specifically, such as Figure 3 As shown, when the foot pedal is closed, the third elastic element 38 allows the first shielding member 36 to be pre-pressed onto the transition section 22, and the fourth elastic element 39 allows the second shielding member 37 to be supported on the drive section 21. This design ensures the compactness of the overall structure when the foot pedal is folded, without taking up more space inside the backrest.
[0044] Furthermore, by Figure 3 As can be seen, the end of the first shielding member 36 furthest from the second shielding member 37 is constructed into an L-shaped structure. When the moving link 2 rotates downward to a certain angle, the L-shaped structure design allows the upper end of the first shielding member 36 to form a close fit with the back plate 11 at the end of the movement stroke, improving the stability of the first shielding member 36 structure. The L-shaped structure does not require additional positioning or limiting components; it can achieve close fit with the back plate 11 simply through its own structural shape, simplifying the overall structure of the linkage shielding assembly 3 and reducing assembly complexity and cost. At the same time, the L-shaped structure in the close fit state can also provide additional support for the first shielding member 36, reducing the deformation of the first shielding member 36 caused by long-term stress and extending its service life.
[0045] In this embodiment, the third elastic element 38 is disposed at the junction of the first shielding member 36 and the back plate 11, and the fourth elastic element 39 is disposed at the hinge of the first shielding member 36 and the second shielding member 37. Both the third elastic element 38 and the fourth elastic element 39 are torsion springs. Torsion springs are suitable for installation at rotating connection parts and can apply continuous preload to the components.
[0046] In addition to the above-described implementation methods, such as Figure 5 and 6 As shown, the linkage shielding component 3 can also include a sliding plate 31 that is slidably disposed on the front side of the clearance hole 111, and a power transmission component disposed between the back plate 11 and the sliding plate 31. The lower end of the sliding plate 31 abuts against the moving link 2, and the power transmission component applies a thrust that causes the sliding plate 31 to continuously abut against the moving link 2. When the moving link 2 rotates downward, due to the abutting relationship between the lower end of the sliding plate 31 and the moving link 2, the sliding plate 31 can stably slide downward synchronously along the extension direction of the clearance hole 111. During this process, the sliding plate 31 always covers the clearance hole 111 area of the back plate 11, filling the exposed gap between the moving link 2 and the clearance hole 111 caused by relative movement in real time, thus achieving full-stroke, no-dead-angle shielding of the clearance hole 111 gap.
[0047] Next, the power transmission components will be described in detail through Embodiments 2 and 3.
[0048] Example 2
[0049] Please refer to Figure 7 The power transmission assembly includes a first elastic element 33 installed between the sliding plate 31 and the back plate 11. The first elastic element 33 applies a continuous downward preload to the sliding plate 31 to keep the lower end of the sliding plate 31 in close contact with the moving link 2. When the moving link 2 rotates downward, it generates a downward thrust on the lower end of the sliding plate 31 along the extension direction of the clearance hole 111. The preload of the first elastic element 33 ensures that the sliding plate 31 and the moving link 2 will not separate, allowing the sliding plate 31 to slide downward along the length direction of the clearance hole 111 synchronously with the rotation of the moving link 2. During this process, the sliding plate 31 always covers the gap between the moving link 2 and the clearance hole 111, preventing the gap from being exposed.
[0050] In this embodiment, a pressure plate 32 is provided on the front side of the back plate 11, and a sliding plate 31 is located between the pressure plate 32 and the back plate 11. The upper end of the pressure plate 32 is fixedly connected to the back plate 11, and the first elastic element 33 is provided between the lower end of the pressure plate 32 and the sliding plate 31. The pressure plate 32 can prevent the sliding plate 31 from detaching from the back plate 11.
[0051] The first elastic element 33 is a tension spring, torsion spring, compression spring, or coil spring connected between the sliding plate 31 and the back plate 11. In this embodiment, the first elastic element 33 is a coil spring. The coil spring has a small axial dimension and occupies little radial space, which can perfectly fit the narrow gap space between the pressure plate 32 and the sliding plate 31, meeting the layout requirements of lightweight and miniaturized components on the front side of the car seat back panel.
[0052] Example 3
[0053] like Figure 5 and Figure 6 As shown, the power transmission assembly includes a guide rod 34, one end of which is rotatably connected to the back plate 11, and the other end is provided with a limiting groove 341. A forward-protruding limiting post 311 is provided on the sliding plate 31, and the limiting post 311 is slidably fitted onto the limiting groove 341. A second elastic element is provided between the guide rod 34 and the back plate 11, and the guide rod 34 provides preload to the sliding plate 31 through the second elastic element. The second elastic element continuously applies preload to the guide rod 34, causing the guide rod 34 to always have a tendency to rotate in a specific direction around its rotation point with the back plate 11. This specific direction is the direction that pushes the sliding plate 31 closer to the motion link 2. This rotational tendency is converted into a thrust on the sliding plate 31 through the cooperation of the limiting groove 341 and the limiting post 311, thereby ensuring that the lower end of the sliding plate 31 always remains in contact with the motion link 2. When the moving link 2 rotates downward, it generates a downward pushing force on the lower end of the sliding plate 31. At this time, the sliding plate 31 slides downward along the extension direction of the clearance hole 111 under the action of the pushing force. At the same time, the limiting post 311 slides along the limiting groove 341 of the guide rod 34. The guide rod 34 rotates around the back plate 11 under the force of the limiting post 311. The second elastic element deforms with the rotation of the guide rod 34 and maintains the preload, ensuring that the sliding plate 31 is always in close contact with the moving link 2 throughout the sliding process, and the sliding plate 31 always covers the gap between the clearance hole 111 and the moving link 2.
[0054] In this embodiment, the back plate 11 is provided with grooves 35 on both sides of the corresponding clearance hole 111, and the sliding plate 31 is slidably assembled in the grooves 35. The grooves 35 provide sliding constraints for the sliding plate 31 along the extension direction of the clearance hole 111, ensuring effective coverage of the upper gap of the clearance hole 111.
[0055] In this embodiment, the second elastic element is disposed at the junction of the guide rod 34 and the back plate 11, and the second elastic element is a torsion spring.
[0056] Further, refer to Figure 5 and 6The lower end of the sliding plate 31 is provided with a roller 312, which allows the sliding plate 31 to form a rolling contact with the moving link 2 through the roller 312, avoiding direct contact between the lower end of the sliding plate 31 and the moving link 2 to prevent wear or abnormal noise, and further improving the smoothness of the component movement.
[0057] In practical applications, since the back plate 11 usually has a certain curvature, the clearance hole 111 also has a certain curvature. During the movement, the sliding plate 31, the first shielding member 36 and the second shielding member 37 can all adapt to deformation so as to better fit the clearance hole 111.
[0058] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.
Claims
1. A shielding mechanism for a linkage motion mechanism, characterized in that, include: Backrest assembly (1), the backrest assembly (1) includes a back panel (11), the back panel (11) having a clearance hole (111) extending in the height direction. Motion link (2), one end of which is rotatably connected inside the backrest assembly (1), and the other end passes through the clearance hole (111) and extends outward. The part of the motion link (2) located behind the back plate (11) is used to install functional components. as well as The linkage shielding component (3) is used to cover the avoidance hole (111) when the functional component is unfolded downward.
2. The shielding mechanism according to claim 1, characterized in that: The linkage shielding component (3) includes a sliding plate (31) that is slidably disposed at the position of the avoidance hole (111). The sliding plate (31) abuts against the moving link (2). A power transmission component is provided between the sliding plate (31) and the back plate (11). The power transmission component applies a thrust that causes the sliding plate (31) to continuously abut against the moving link (2).
3. The shielding mechanism according to claim 2, characterized in that: The power transmission assembly includes a first elastic element (33) installed between the sliding plate (31) and the back plate (11); the first elastic element (33) is a tension spring, torsion spring, compression spring or coil spring.
4. The shielding mechanism according to claim 2, characterized in that: The power transmission assembly includes a guide rod (34), one end of which is rotatably connected to the back plate (11), and the other end is provided with a limiting groove (341). The sliding plate (31) is provided with a limiting post (311), and the limiting post (311) is slidably fitted on the limiting groove (341). A second elastic element is provided between the guide rod (34) and the back plate (11), and the guide rod (34) provides preload to the sliding plate (31) through the second elastic element.
5. The shielding mechanism according to claim 2, characterized in that: The back plate (11) has a groove (35) on both sides of the corresponding clearance hole (111), and the sliding plate (31) is slidably assembled in the groove (35); the lower end of the sliding plate (31) is provided with a roller (312).
6. The shielding mechanism according to claim 1, characterized in that: The linkage shielding assembly (3) includes a first shielding member (36) rotatably installed in the backrest assembly (1). A third elastic element (38) is provided between the first shielding member (36) and the backrest assembly (1). When the motion linkage (2) rotates downward to unfold the functional component, the third elastic element (38) can push the first shielding member (36) to cover the clearance hole (111).
7. The shielding mechanism according to claim 6, characterized in that: The upper end of the first shielding member (36) is rotatably mounted on the back plate (11) above the clearance hole (111). The lower end of the first shielding member (36) is rotatably connected to the second shielding member (37). A fourth elastic element (39) is provided between the first shielding member (36) and the second shielding member (37). When the motion link (2) rotates downward to unfold the functional component, the fourth elastic element (39) can push the second shielding member (37) to cover the clearance hole (111).
8. The shielding mechanism according to claim 7, characterized in that: The end of the first shielding member (36) away from the second shielding member (37) is constructed into an L-shaped structure. When the moving link (2) rotates downward to a certain angle, the L-shaped structure can fit with the back plate (11); the third elastic element (38) and the fourth elastic element (39) are both torsion springs.
9. The shielding mechanism according to claim 7, characterized in that: The motion link (2) includes a drive section (21), a transition section (22) and an extension section (23) that are bent in sequence. The extension section (23) is used to connect functional components. The end of the drive section (21) is rotatably mounted on the backrest assembly (1). The transition section (22) passes through the clearance hole (111). When the functional component is closed, the third elastic element (38) pre-presses the first shielding member (36) onto the transition section (22), and the fourth elastic element (39) supports the second shielding member (37) onto the drive section (21).
10. A car seat, characterized in that: Includes the shielding mechanism as described in any one of claims 1 to 9.