Leg support surface sleeve tensioning device and automobile seat
By designing a leg support cover tensioning device, the cover is tightened using a telescopic drive component and a U-shaped limiting rod, which solves the problems of wrinkles and air bubbles in the leg support cover during the telescopic process, improving the user experience and extending the lifespan of the cover.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LEAR-DFM AUTOMOTIVE SEATING CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
In the prior art, the cover of the leg support device is prone to wrinkles or air pockets during the extension and retraction process, which affects the appearance and user experience, and reduces the service life.
A leg support cover tensioning device was designed, including a cover telescopic component and a cover assembly. The cover is installed on the car seat through a cover flipping component, and the cover is tightened by a telescopic drive component and a U-shaped limiting rod to prevent wrinkles and air bubbles.
During car seat adjustment, the seat cover assembly remains taut, preventing wrinkles and air pockets, and extending the seat cover's lifespan.
Smart Images

Figure CN224210952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, and more specifically, to a leg support cover tensioning device and an automotive seat. Background Technology
[0002] In recent years, with the improvement of living standards and people’s increasing demands for seat quality, people’s driving and riding experience in cars has gradually improved. Leg support devices have appeared in the driver’s seat, passenger seat and rear seat, especially in the zero-gravity seats that have appeared in recent years. When the human body is in a lying position, the occupant’s legs are supported.
[0003] However, in the existing technology, the face cover on the leg support device will wrinkle or bulge during the extension and retraction of the leg support device, which affects the appearance and user experience, and long-term use will reduce the lifespan of the face cover. Utility Model Content
[0004] The purpose of this utility model is to provide a leg support cover tensioning device and a car seat to alleviate the technical problem of wrinkles appearing on the cover during the extension and retraction of the leg support device in the prior art.
[0005] In a first aspect, this utility model provides a leg support cover tensioning device, including a cover telescopic component and a cover component;
[0006] The mask telescopic assembly is installed on the car seat via the mask flipping assembly;
[0007] The face cover telescopic assembly includes a telescopic drive component, a leg support extension bracket, and a U-shaped limiting rod. The leg support extension bracket is slidably mounted on the face cover flipping assembly. The telescopic drive component is mounted on the face cover flipping assembly and can drive the leg support extension bracket to slide on the face cover flipping assembly. The U-shaped limiting rod is provided on both sides of the leg support extension bracket.
[0008] The two ends of the face cover assembly are disposed on the face cover flipping assembly, the face cover assembly covers the leg support extension bracket, and the edge of the face cover assembly is provided with a connector, which is slidably disposed on the U-shaped limiting rod.
[0009] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the above-mentioned face mask flipping assembly includes a flipping drive, a flipping link, and a fixed bracket. The flipping drive is disposed on the car seat, one end of the flipping link is disposed on the car seat, and the other end is connected to the fixed bracket. The flipping drive is connected to the flipping link.
[0010] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the above-mentioned face cover assembly includes a foam body and a face cover cover, the face cover cover is fitted onto the foam body, a drag chain is provided at the bottom of the foam body, and one end of the drag chain is hung on the fixed bracket.
[0011] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the bottom of the aforementioned cable chain is provided with an assembly hook, the fixed bracket is provided with a hanging steel wire, and the assembly hook is hung on the hanging steel wire.
[0012] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the bottom of the aforementioned fixing bracket is provided with a faceplate fixing wire, and the end of the faceplate cover away from the assembly hook is connected to the faceplate fixing wire.
[0013] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the aforementioned connecting members are disposed on both sides of the mask cover, and the connecting members are sleeved on the U-shaped limiting rod, so that the mask cover is tightened when the mask cover moves with the leg support extension bracket.
[0014] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the outer cover of the mask is provided with fixing inserts on both sides, and the fixing bracket is provided with a connection slot for fitting the fixing inserts.
[0015] The fixing insert is located between the connector and the assembly hook.
[0016] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the telescopic drive member and the leg support extension bracket described above are both disposed on the fixed bracket;
[0017] The fixed bracket has slides on both sides, and the leg support extension bracket has sliders that are adapted to the slides.
[0018] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the above-mentioned connecting member is an elastic rope loop, one end of the elastic rope loop is disposed on the outer cover of the face cover, and the other end is sleeved on the U-shaped limiting rod.
[0019] Secondly, this utility model embodiment provides an automobile seat, including the leg support cover tensioning device.
[0020] Beneficial effects:
[0021] This utility model embodiment provides a leg support cover tensioning device, including a cover telescopic assembly and a cover assembly; the cover telescopic assembly is installed on a car seat via a cover flipping assembly; the cover telescopic assembly includes a telescopic drive component, a leg support extension bracket, and a U-shaped limiting rod, the leg support extension bracket is slidably mounted on the cover flipping assembly, the telescopic drive component is mounted on the cover flipping assembly, the telescopic drive component can drive the leg support extension bracket to slide on the cover flipping assembly, and U-shaped limiting rods are provided on both sides of the leg support extension bracket; both ends of the cover assembly are mounted on the cover flipping assembly, the cover assembly covers the leg support extension bracket, and connecting members are provided on the edge of the cover assembly, the connecting members are slidably mounted on the U-shaped limiting rods.
[0022] Specifically, during the user's adjustment of the car seat, the seat cover flipping assembly can drive the seat cover assembly to flip up and down. At the same time, the telescopic drive component can drive the leg rest extension bracket and the U-shaped limiting rod to move back and forth. The front end of the seat cover assembly, which is set on the seat cover flipping assembly, can move back and forth with the leg rest extension bracket. When the seat cover assembly moves back and forth, the two sides of the front end of the seat cover assembly slide on the U-shaped limiting rod through the connecting parts, so that the front end of the seat cover assembly can remain taut when moving back and forth, without wrinkles or air bubbles, ensuring the normal use of the seat cover assembly.
[0023] This utility model provides a car seat, including a leg support cover tensioning device. The car seat has the advantages described above compared to the prior art, which will not be elaborated further here. Attached Figure Description
[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 A schematic diagram of the leg support cover tensioning device provided in this embodiment of the present invention installed on a car seat without being unfolded;
[0026] Figure 2 A schematic diagram showing the leg support cover tensioning device provided in this embodiment of the invention installed on a car seat and unfolded.
[0027] Figure 3 for Figure 2 Sectional view at point A-A;
[0028] Figure 4 for Figure 2 Sectional view at point B-B;
[0029] Figure 5 A schematic diagram of the unfolded leg support cover tensioning device provided in this embodiment of the utility model;
[0030] Figure 6 A schematic diagram of the leg support cover tensioning device provided in this embodiment of the present invention when it is not unfolded;
[0031] Figure 7 A schematic diagram of the leg support extension bracket in the leg support cover tensioning device provided in this embodiment of the utility model;
[0032] Figure 8 This is a partial schematic diagram of the leg support cover tensioning device provided in an embodiment of the present utility model;
[0033] Figure 9 A schematic diagram of the leg support cover tensioning device provided in this embodiment of the present invention when the cover assembly is not unfolded;
[0034] Figure 10 This is a schematic diagram of the face cover assembly when the leg support face cover tensioning device provided in this embodiment of the utility model is unfolded.
[0035] icon:
[0036] 100 – Telescopic assembly of face cover; 110 – Screw nut; 120 – Leg support extension bracket; 121 – Slider; 130 – U-shaped limit rod;
[0037] 200 – Face cover assembly; 201 – Connector; 210 – Foam body; 211 – Cable chain; 212 – Assembly hook; 220 – Face cover outer cover; 221 – Fixing insert;
[0038] 300 – Face cover flipping assembly; 310 – Flipping drive component; 320 – Flipping linkage; 330 – Fixed bracket; 331 – Hanging wire; 332 – Face cover fixing wire; 333 – Connecting slot; 334 – Slide rail;
[0039] 400 - Car Seats. Detailed Implementation
[0040] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.
[0045] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, this embodiment provides a leg support cover tensioning device, including a cover telescopic assembly 100 and a cover assembly 200; the cover telescopic assembly 100 is mounted on a car seat 400 via a cover flipping assembly 300; the cover telescopic assembly 100 includes a telescopic drive, a leg support extension bracket 120 and a U-shaped limiting rod 130, the leg support extension bracket 120 is slidably disposed on the cover flipping assembly 300, the telescopic drive is disposed on the cover flipping assembly 300, the telescopic drive can drive the leg support extension bracket 120 to slide on the cover flipping assembly 300, and U-shaped limiting rods 130 are provided on both sides of the leg support extension bracket 120; the two ends of the cover assembly 200 are disposed on the cover flipping assembly 300, the cover assembly 200 covers the leg support extension bracket 120, and a connector 201 is provided on the edge of the cover assembly 200, the connector 201 is slidably disposed on the U-shaped limiting rod 130.
[0046] Specifically, during the user's adjustment of the car seat 400, the seat cover flipping assembly 300 can drive the seat cover assembly 200 to flip up and down. At the same time, the telescopic drive can drive the leg support extension bracket 120 and the U-shaped limiting rod 130 to move back and forth. The front end of the seat cover assembly 200, which is set on the seat cover flipping assembly 300, can move back and forth with the leg support extension bracket 120. When the seat cover assembly 200 moves back and forth, the two sides of the front end of the seat cover assembly 200 are slidably fitted onto the U-shaped limiting rod 130 through the connector 201, so that the front end of the seat cover assembly 200 can remain taut when moving back and forth, without wrinkles or air bubbles, thus ensuring the normal use of the seat cover assembly 200.
[0047] One end of the face cover assembly 200 is hung on the fixed bracket 330 of the face cover flipping assembly 300, and the face cover assembly 200 is located above the fixed bracket 330 and above the leg support extension bracket 120. The other end of the face cover assembly 200 covers the leg support extension bracket 120, and the other end of the face cover assembly 200 is connected downward along the leg support extension bracket 120 to the face cover fixing wire 332 below the fixed bracket 330, so that both ends of the face cover assembly 200 are set on the fixed bracket 330. Then, the extension and retraction of the face cover assembly 200 is completed by the extension and retraction of the leg support extension bracket 120 to the fixed bracket 330.
[0048] Among them, the face cover fixing wire 332 is located inside the leg support extension bracket 120, which is U-shaped.
[0049] See Figure 1 - Figure 10As shown, in the optional embodiment, the face mask flipping assembly 300 includes a flipping drive 310, a flipping link 320, and a fixing bracket 330. The flipping drive 310 is mounted on the car seat 400. One end of the flipping link 320 is mounted on the car seat 400, and the other end is connected to the fixing bracket 330. The flipping drive 310 is connected to the flipping link 320.
[0050] Specifically, the flip drive 310 is installed on the car seat 400. When the flip drive 310 is working, it can drive the flip linkage 320 to move, thereby causing the fixed bracket 330 to swing. The swing of the fixed bracket 330 can drive the leg support extension bracket 120 to swing synchronously. Then, when the telescopic drive is working, it can drive the leg support extension bracket 120 to telescopically move relative to the fixed bracket 330.
[0051] The telescopic drive component and the leg support extension bracket 120 are both mounted on the fixed bracket 330. The fixed bracket 330 has slide rails 334 on both sides, and the leg support extension bracket 120 has sliders 121 that are adapted to the slide rails 334. The leg support extension bracket 120 is slidably mounted on the fixed bracket 330 via the sliders 121, thereby enabling the telescopic drive component to drive the leg support extension bracket 120 to move on the fixed bracket 330.
[0052] The telescopic drive component uses a motor-driven lead screw, and a lead screw nut 110 adapted to the lead screw is provided on the leg support extension bracket 120, so that after the motor drives the lead screw to rotate, the lead screw can drive the leg support extension bracket 120 to move.
[0053] See Figure 1 - Figure 10 As shown, in the optional embodiment, the face mask assembly 200 includes a foam body 210 and a face mask cover 220. The face mask cover 220 is fitted onto the foam body 210. A drag chain 211 is provided at the bottom of the foam body 210, and one end of the drag chain 211 is hung on the fixed bracket 330.
[0054] Specifically, a drag chain 211 is provided at the bottom of the foam body 210 of the face cover assembly 200, an assembly hook 212 is provided at the bottom of the drag chain 211, and a hanging wire 331 is provided on the fixed bracket 330. The assembly hook 212 is hung on the hanging wire 331, so that one end of the face cover assembly 200 is hung and fixed on the fixed bracket 330.
[0055] In addition, the outer cover 220 is placed on the foam body 210 and is fixedly connected to the foam body 210. A cover fixing wire 332 is provided at the bottom of the fixing bracket 330. The end of the outer cover 220 away from the assembly hook 212 is connected to the cover fixing wire 332, so that one end of the cover assembly 200 is positioned above the fixing bracket 330 and the other end is positioned below the fixing bracket 330. At the same time, the cover assembly 200 can cover the leg support extension bracket 120, and the leg support extension bracket 120 can cover the cover fixing wire 332 inside. So that when the leg support extension bracket 120 moves, it can drive the front end of the cover assembly 200 to extend and retract, so that the cover assembly 200 can extend and cooperate during the extension of the leg support structure.
[0056] The connectors 201 are located on both sides of the face mask cover 220 and are fitted onto the U-shaped limiting rod 130 to tighten the face mask cover 220 as it moves with the leg support extension bracket 120. The connectors 201 are elastic cord loops, with one end on the face mask cover 220 and the other end on the U-shaped limiting rod 130. When the leg support extension bracket 120 moves and the face mask cover 220 extends, the face mask cover 220 moves relative to the leg support extension bracket 120, and the elastic cord loop on the face mask cover 220 slides on the U-shaped limiting rod 130, thereby tightening both sides of the front end of the face mask cover 220 onto the leg support extension bracket 120.
[0057] See Figure 1 - Figure 10 As shown, in the optional embodiment, the outer cover 220 of the mask is provided with fixing inserts 221 on both sides, and the fixing bracket 330 is provided with a connection slot 333 for matching the fixing inserts 221; the fixing inserts 221 are located between the connector 201 and the assembly hook 212.
[0058] Specifically, the two sides of the part of the mask cover 220 that covers the fixed bracket 330 are provided with fixing inserts 221. By using the fixing inserts 221 and the connecting slots 333 on the fixed bracket 330, the middle and rear sides of the mask cover 220 can be tightly fastened to the fixed bracket 330.
[0059] This embodiment provides a car seat 400, including a leg support cover tensioning device.
[0060] Specifically, the car seat 400 provided in this embodiment has the advantages of the above-mentioned leg support cover tensioning device compared with the prior art, which will not be elaborated here.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A leg support cover tensioning device, characterized in that, include: Mask telescopic assembly (100) and mask assembly (200); The mask telescopic assembly (100) is mounted on the car seat (400) via the mask flipping assembly (300); The face mask telescopic assembly (100) includes a telescopic drive, a leg support extension bracket (120), and a U-shaped limiting rod (130). The leg support extension bracket (120) is slidably disposed on the face mask flipping assembly (300). The telescopic drive is disposed on the face mask flipping assembly (300). The telescopic drive can drive the leg support extension bracket (120) to slide on the face mask flipping assembly (300). The U-shaped limiting rod (130) is provided on both sides of the leg support extension bracket (120). The two ends of the face cover assembly (200) are disposed on the face cover flipping assembly (300), the face cover assembly (200) covers the leg support extension bracket (120), and the edge of the face cover assembly (200) is provided with a connector (201), which is slidably disposed on the U-shaped limiting rod (130).
2. The leg support cover tensioning device according to claim 1, characterized in that, The face mask flipping assembly (300) includes a flipping drive (310), a flipping link (320), and a fixed bracket (330). The flipping drive (310) is mounted on the car seat (400). One end of the flipping link (320) is mounted on the car seat (400), and the other end is connected to the fixed bracket (330). The flipping drive (310) is connected to the flipping link (320).
3. The leg support cover tensioning device according to claim 2, characterized in that, The face mask assembly (200) includes a foam body (210) and a face mask cover (220). The face mask cover (220) is fitted onto the foam body (210). A drag chain (211) is provided at the bottom of the foam body (210), and one end of the drag chain (211) is hung on the fixed bracket (330).
4. The leg support cover tensioning device according to claim 3, characterized in that, The bottom of the drag chain (211) is provided with an assembly hook (212), and the fixed bracket (330) is provided with a hanging wire (331). The assembly hook (212) is hung on the hanging wire (331).
5. The leg support cover tensioning device according to claim 4, characterized in that, The bottom of the fixed bracket (330) is provided with a face cover fixing wire (332), and the end of the face cover (220) away from the assembly hook (212) is connected to the face cover fixing wire (332).
6. The leg support cover tensioning device according to claim 5, characterized in that, The connector (201) is disposed on both sides of the face mask cover (220), and the connector (201) is sleeved on the U-shaped limiting rod (130) so that the face mask cover (220) is tightened when the face mask cover (220) moves with the leg support extension bracket (120).
7. The leg support cover tensioning device according to claim 6, characterized in that, The outer cover (220) of the mask is provided with fixing inserts (221) on both sides, and the fixing bracket (330) is provided with a connecting slot (333) for fitting the fixing inserts (221); The fixing insert (221) is located between the connector (201) and the assembly hook (212).
8. The leg support cover tensioning device according to claim 2, characterized in that, Both the telescopic drive component and the leg support extension bracket (120) are mounted on the fixed bracket (330); The fixed bracket (330) is provided with slide rails (334) on both sides, and the leg support extension bracket (120) is provided with a slider (121) adapted to the slide rails (334).
9. The leg support cover tensioning device according to claim 3, characterized in that, The connector (201) is an elastic rope loop, with one end of the elastic rope loop set on the outer cover (220) and the other end fitted on the U-shaped limiting rod (130).
10. A car seat (400), characterized in that, Includes the leg support cover tensioning device as described in any one of claims 1-9.