Seat leg support surface sleeve furling mechanism

Abstract

The utility model discloses a seat leg support surface sleeve furling mechanism which comprises a leg support framework and a surface sleeve wrapping the surface of the leg support framework, the front end of the surface sleeve is provided with a turnover section which is arranged on the lower side of the front portion of the leg support framework in a turnover mode, the leg support framework is further provided with an elastic tightening assembly, and the elastic tightening assembly is connected with the turnover section of the surface sleeve. And the elastic tightening assembly applies backward traction force to the folding section, so that the cover can be continuously in a tightened state. The utility model has the beneficial effects that the elastic tightening assembly is arranged, and the elastic tightening assembly continuously exerts traction force on the surface cover, so that the surface cover is always in a tightened state, and the wrinkle phenomenon of the surface cover is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat leg supports, in particular to a seat leg support surface cover rolling mechanism. Background Art

[0002] The leg rest is usually folded and installed at the bottom of the car seat. It can be unfolded by manual or electric control and can be used to support the passenger's calves to ensure the passenger's riding comfort.

[0003] When the existing leg rest is in the extended state, there is a distance between it and the seat, which makes the overall car seat lack aesthetic appeal. To solve this problem, most of the existing technologies use an integrated seat cover to wrap the car seat and the leg rest. However, as the leg rest is folded for a long time, the seat cover between the leg rest and the car seat will be wrinkled, which not only reduces the riding comfort, but also affects the aesthetics of the seat. Utility Model Content

[0004] In view of this, the utility model provides a seat leg support cover retracting mechanism, which aims to keep the seat cover in a taut state all the time without generating wrinkles.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A seat leg support cover retracting mechanism comprises a leg support frame and a cover wrapped around the surface of the leg support frame, wherein the front end of the cover has a folding section folded and arranged on the lower side of the front part of the leg support frame, the leg support frame is provided with an elastic tensioning component, the elastic tensioning component is connected to the folding section of the cover, and the elastic tensioning component applies a backward traction force to the folding section so that the cover can be continuously in a tightened state.

[0007] With the above structure, an elastic tensioning component is provided, and the elastic tensioning component continuously applies traction to the face cover, so that the face cover is always in a tight state, thereby effectively avoiding wrinkles on the surface of the face cover.

[0008] As a preference, a set of the elastic tightening components is respectively provided on the left and right sides of the leg support frame. With the above structure, the traction force on the face cover can be more uniform, thereby ensuring that no wrinkles appear on the surface of the face cover.

[0009] Preferably, the elastic tensioning assembly includes a cable, a movable pulley capable of moving along the length direction of the leg support frame, and a fixed pulley arranged on the leg support frame; one end of the cable is fixed to the leg support frame, and the other end is connected to the folding section after passing through the movable pulley and the fixed pulley in sequence; an elastic element is arranged between the movable pulley and the leg support frame, and the elastic element applies a force to keep the cable in a taut state. With the above structure, the elastic element continuously applies a pulling force to the movable pulley, so that the cable is always in a pulled state, thereby ensuring that the face cover is always in a taut state.

[0010] Preferably, the cables are arranged in a "Z" shape.

[0011] As a preferred embodiment: a sliding groove is provided on the side of the leg support frame, a slider is slidably mounted in the sliding groove, the movable pulley is rotatably arranged on the slider, the fixed pulley is rotatably arranged on the rear side of the lower end of the sliding groove, and the elastic element is a tension spring, one end of which is fixedly connected to the front of the leg support frame and the other end is connected to the slider. The above structure can ensure that the movable pulley can be adjusted when the leg support frame is extended, thereby ensuring that the face cover has a movable range, effectively avoiding the face cover from being torn due to excessive pulling.

[0012] As a preferred embodiment, a lug is provided on the slider, and one end of the tension spring is fixedly connected to the lug. The above structure can ensure that the tension spring can be installed.

[0013] Preferably, the face cover is seamlessly connected to the car seat and the leg support frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The seat leg support cover retracting mechanism provided by the utility model can keep the cover in a tight state at all times by providing an elastic tightening component, and the elastic tightening component continuously applies traction to the cover, thereby effectively avoiding wrinkles on the surface of the cover.

[0016] 2. Through the combination of a tension spring and a movable pulley that can slide back and forth, when the leg rest frame is in a folded state, the tension spring can continuously apply tension to the movable pulley, thereby making the face cover in a taut state; when the leg rest frame is in an extended state, the face cover can pull the cable to move the movable pulley backward, thereby ensuring that the face cover will not be torn due to excessive pulling.

[0017] 3. Whether it is a folding or telescopic leg rest, the elastic tensioning component can prevent wrinkles on the surface of the cover during the unfolding process of the leg rest. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the seat leg support cover retracting mechanism (left side view);

[0019] Figure 2 It is a structural schematic diagram of the seat leg support cover retracting mechanism (top view);

[0020] Figure 3 for Figure 1 A cross-sectional view of

[0021] Figure 4 This is a simplified diagram of the working principle of the seat leg support cover retracting mechanism. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with embodiments and drawings.

[0023] like Figure 1 As shown, a seat leg support cover retracting mechanism includes a leg support frame 1 and a cover 2 wrapped around the surface of the leg support frame 1, the front end of the cover 2 has a folded section 2a folded and arranged on the lower front side of the leg support frame 1, and an elastic tensioning component 3 is also installed on the leg support frame 1, the elastic tensioning component 3 is fixedly connected to the folded section 2a of the cover 2, and the elastic tensioning component 3 applies a backward traction force to the folded section 2a to keep the cover 2 in a tightened state.

[0024] With such a design, by providing the elastic tensioning component 3 and continuously applying traction to the face cover 2 , the face cover 2 can always be in a tight state during the unfolding of the leg support, thereby effectively avoiding the occurrence of wrinkles on the surface of the face cover 2 .

[0025] In this embodiment, the cover 2 is seamlessly installed on the surface of the car seat and the leg support frame 1 to achieve the purpose of seamless leg support and ensure that the occupants ride more comfortably.

[0026] like Figure 2 As shown, a set of elastic tensioning components 3 are installed on the left and right sides of the leg support frame 1, so as to ensure that the elastic tensioning components 3 pull the face cover 2 more evenly, and further ensure that no wrinkles appear on the surface of the face cover 2.

[0027] Specifically, Figure 3 As shown, the elastic tensioning assembly 3 includes a cable 3a, a movable pulley 3b that can move along the length direction of the leg support frame 1, and a fixed pulley 3c arranged on the leg support frame 1, wherein one end of the cable 3a is fixed to the leg support frame 1, and the other end is connected to the end of the folding section 2a after passing through the movable pulley 3b and the fixed pulley 3c in sequence. In this embodiment, an elastic element 3d is also arranged between the movable pulley 3b and the leg support frame 1, and the elastic element 3d exerts a force to keep the cable 3a in a taut state.

[0028] Furthermore, a sliding groove 1a is provided on the side of the leg support frame 1, and a slider 4 is slidably installed in the sliding groove 1a, and the movable pulley 3b is rotatably set on the slider 4. The front end of the slider 4 is also formed with a hanging ear 4a. In this embodiment, the elastic element 3d is a tension spring, which is laterally arranged on the left and right sides of the leg support frame 1, and one end of the tension spring is fixedly installed at the front end position on both sides of the leg support frame 1, and the other end is hooked on the hanging ear 4a. When the leg support frame 1 is in the folded state, the tension spring can pull the slider 4 so that the movable pulley 3b is at the front end of the sliding groove 1a, and the fixed pulley 3c is rotatably set on the rear side of the lower end of the sliding groove 1a, so that the cable 3a is arranged in a "Z" shape.

[0029] Combination Figure 3 and Figure 4 The specific working principle of a seat leg support cover retracting mechanism is as follows:

[0030] When the leg support frame 1 is in a folded state, the tension of the elastic element 3d itself can pull the slider 4 to the rightmost end of the sliding groove 1a, which forces the end of the cable 3a fixedly connected to the folding section 2a to be restrained to the left, thereby making the face cover 2 in a taut state. When the leg support frame 1 is extended forward, it can force the face cover 2 to extend forward, that is, it forces the end of the cable 3a fixedly connected to the folding section 2a to move to the right. At this time, the tension of the face cover 2 on the cable 3a is greater than the tension of the elastic element 3d on the slider 4, which will force the slider 4 to slide to the left. In this way, it is ensured that when the leg support frame 1 is extended forward, the face cover 2 is always in a taut state and has the condition to extend, thereby effectively preventing the face cover 2 from being too tight and tearing.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A chair leg support cover retracting mechanism, comprising a leg support frame (1) and a cover (2) wrapped around the surface of the leg support frame (1), characterized in that: The front end of the face cover (2) has a folding section (2a) folded and arranged on the lower side of the front part of the leg support frame (1); the leg support frame (1) is provided with an elastic tensioning component (3); the elastic tensioning component (3) is connected to the folding section (2a) of the face cover (2); the elastic tensioning component (3) applies a backward traction force to the folding section (2a) so that the face cover (2) can be continuously in a tightened state.

2. The seat leg support cover retracting mechanism according to claim 1, characterized in that: A set of the elastic tightening components (3) is respectively provided on the left and right sides of the leg support frame (1).

3. The seat leg support cover retracting mechanism according to claim 1, characterized in that: The elastic tightening assembly (3) comprises a cable (3a), a movable pulley (3b) capable of moving along the length direction of the leg support frame (1), and a fixed pulley (3c) arranged on the leg support frame (1); one end of the cable (3a) is fixed to the leg support frame (1), and the other end of the cable (3a) is connected to the folding section (2a) after passing through the movable pulley (3b) and the fixed pulley (3c) in sequence; An elastic element (3d) is provided between the movable pulley (3b) and the leg support frame (1), and the elastic element (3d) applies a force to keep the cable (3a) in a continuously taut state.

4. The seat leg support cover retracting mechanism according to claim 3, characterized in that: The cables (3a) are arranged in a "Z" shape.

5. The seat leg support cover retracting mechanism according to claim 3, characterized in that: The side of the leg support frame (1) is provided with a sliding groove (1a), and a slider (4) is slidably mounted in the sliding groove (1a). The movable pulley (3b) is rotatably arranged on the slider (4), and the fixed pulley (3c) is rotatably arranged on the rear side of the lower end of the sliding groove (1a). The elastic element (3d) is a tension spring, one end of which is fixedly connected to the front part of the leg support frame (1) and the other end is connected to the slider (4).

6. The seat leg support cover retracting mechanism according to claim 5, characterized in that: The slider (4) is provided with a hanging ear (4a), and one end of the tension spring is fixedly connected to the hanging ear (4a).

7. The seat leg support cover retracting mechanism according to claim 1, characterized in that: The face cover (2) is seamlessly arranged on the automobile seat and the leg support frame (1).

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