A foldable and retractable sunshade system

Abstract

This invention relates to a foldable and retractable sunshade system, comprising a pull plate (1), a sunshade (2), a pulley assembly (3), a cable (4), and a pullback roller (5). The pull plate (1) is connected to one end of the sunshade (2). The assembly formed by connecting the sunshade (2) and the cable (4) is mounted on each pulley of the pulley assembly (3). The cable (4) is connected to the pullback roller (5). This invention changes the retraction of the curtain to folding, which can significantly reduce the height occupied by the sunshade when it is retracted, thereby reducing the encroachment of the sunshade system on the headroom of second-row passengers and improving the riding comfort of second-row passengers.

Description

Technical Field

[0001] This invention belongs to the field of passenger vehicle decoration manufacturing, specifically a foldable and retractable sunshade system. Background Technology

[0002] In existing panoramic sunroof sunshade systems, the curtain fabric is typically wound and retracted via a pivot system located at the rear. For example, CN107107719A discloses a roller blind device that provides both light intake and shading at an opening formed in the roof of a vehicle; another example is CN213768228U, which discloses a car sunroof sunshade with a cable-driven structure, using a cable to drive the opening and closing of the entire sunshade curtain.

[0003] The common feature of the aforementioned existing technologies is that the sunshade curtain is rolled up when it is not needed, and the curtain is rolled onto a spool. However, this rolling method is also their disadvantage, such as... Figure 5 As shown, for sunshades with a large opening range, the diameter of the curtain's envelope increases with the number of fabric loops on the pivot. Because of this larger envelope diameter, the passenger car roof needs to be positioned lower to ensure safe movement clearance, reducing the height of the second-row passenger seats and consequently decreasing headroom for second-row passengers, thus reducing their comfort.

[0004] Based on this, the present invention is proposed. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention provides a foldable sunshade that reduces the assembly space of the sunshade in the Z-direction (vehicle height direction) and increases headroom for second-row passengers.

[0006] The technical solution of the present invention is as follows: a foldable and retractable sunshade system, comprising a pull plate, a sunshade, a pulley block, a pull cable, and a pullback roller. The pull plate is connected to one end of the sunshade, the assembly formed by the sunshade and the pull cable is disposed on each pulley of the pulley block, and the pull cable is connected to the pullback roller.

[0007] Furthermore, the sunshade includes a curtain fabric and side strips disposed at both ends of the curtain fabric in the width direction.

[0008] Furthermore, the pulley group includes at least three sets of pulleys, each set of pulleys including pulleys disposed at both ends of the pulley axle.

[0009] Preferably, the pulley block includes three sets of pulleys, which are mounted on a pulley block bracket.

[0010] Furthermore, the upper and lower flanges on the upper and lower surfaces of the edge strip of the sunshade curtain can engage with the pulley groove of each pulley in the pulley assembly, thereby enabling the sunshade curtain to be taut on the pulley assembly and to slide on the pulleys.

[0011] Furthermore, the size of the pulley assembly is adapted to the length of the sunshade, so that when the sunshade is folded and closed, the pull plate can be close to the front end of the pulley assembly, and when it is unfolded, the cable can also be close to the front end of the pulley assembly.

[0012] Furthermore, the pull-back roller is an elastic torsion shaft, which can pull the sunshade from the unfolded state to the folded and closed state through its own elastic torque.

[0013] Optionally, the pull-back roller is a motor-driven shaft, which can pull the sunshade from the unfolded state to the folded and retracted state by motor drive.

[0014] The beneficial effects of this invention are as follows: changing the rolling up of the curtain to folding the curtain can significantly reduce the height occupied by the sunshade when it is rolled up, thereby reducing the encroachment of the sunshade system on the head space of the second row of passengers and improving the riding comfort of the second row of passengers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of the foldable sunshade system of the present invention in its unfolded state.

[0016] Figure 2 yes Figure 1 The schematic diagram shown is of the embodiment in a folded and stowed state. For ease of display, the pulley bracket has been removed.

[0017] Figure 3 This is a schematic diagram of the edge strip structure of an embodiment of a foldable and retractable sunshade system according to the present invention.

[0018] Figure 4 This is an enlarged view showing the details of the sunshade curtain, pulley system, and cable coordination in one embodiment of a foldable sunshade curtain system of the present invention, with the sunshade curtain in a fully folded and retracted state.

[0019] Figure 5 This is a schematic diagram of the structure of a sunshade system based on existing technology.

[0020] Among them, 1-pull plate, 2-sunshade curtain, 21-curtain fabric, 22-side strip, 221-upper flange, 222-lower flange, 3-pulley block, 31-first group of pulleys, 32-second group of pulleys, 33-third group of pulleys, 331-pulley groove, 4-pull cable, 5-retracting roller, 6-pulley block bracket. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 The present invention will further describe a foldable and retractable sunshade system. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not an exhaustive list of all embodiments.

[0022] It should be understood that, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component 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 on the scope of protection of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as fixed connections, detachable connections, or integral connections; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0023] like Figure 1 and Figure 2 The diagram shows a structural schematic of an embodiment of a foldable sunshade system according to the present invention in both the unfolded and folded / folded states. The sunshade system includes a pull plate 1, a sunshade 2, a pulley block 3, a pull cable 4, and a pull-back roller 5. The pull plate 1 is connected to one end of the sunshade 2. The assembly formed by connecting the sunshade 2 and the pull cable 4 is mounted on each pulley of the pulley block 3. The pull cable 4 is connected to the pull-back roller 5. When the curtain of the sunshade 2 is unfolded, the stretched pull cable 4 is mounted on the pulley block 3, and the sunshade 2 completely detaches from the pulley block 3 and enters the guide rail pre-installed on the roof of the passenger vehicle. When the curtain is folded / folded, the edge strip of the sunshade 2 is mounted on the pulley block 3, and at the same time, the sunshade 2 is also mounted on the pulley block 3. The pull cable 4 is retracted to the pull-back roller 5 on the rear beam of the passenger vehicle.

[0024] The sunshade curtain 2 includes a curtain fabric 21 and side strips 22 disposed at both ends in the width direction of the curtain fabric. The sunshade curtain 2 is also referred to as a sewing assembly.

[0025] The pulley block 3 includes at least three sets of pulleys, each set of pulleys including pulleys located at both ends of the pulley axle.

[0026] In a preferred embodiment, the pulley block 3 includes three sets of pulleys: a first set of pulleys 31, a second set of pulleys 32, and a third set of pulleys 33, all of which are mounted on the pulley block bracket 6 via pulley axles.

[0027] like Figure 3 and Figure 4 As shown, the side strip 22 of the sunshade curtain 2 has an upper flange 221 and a lower flange 222 on the upper and lower surfaces near the outer side. These flanges can engage with the pulley groove 31 of each pulley in the pulley group 3, so that the sunshade curtain 2 can be tightened on the pulley group 3 and can slide on the pulley.

[0028] The size of the pulley block 3 is adapted to the length of the sunshade 2, so that when the sunshade is folded and closed, the pull plate 1 can be close to the front end of the pulley block 3 (the first pulley 31), and when it is unfolded, the cable 4 can also be close to the front end of the pulley block 3 (the first pulley 31).

[0029] In a preferred embodiment, the pull-back roller 5 is an elastic torsion shaft, which can pull the sunshade curtain back from the unfolded state to the folded and closed state through its own elastic torque.

[0030] In an optional embodiment, the pull-back roller 5 is a motor-driven rotating shaft that can pull the sunshade from the unfolded state to the folded and retracted state via motor drive.

[0031] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A foldable and retractable sunshade system, characterized in that, It includes a pull plate (1), a sunshade curtain (2), a pulley block (3), a pull cable (4), and a pullback roller (5). The pull plate (1) is connected to one end of the sunshade curtain (2). The assembly formed by connecting the sunshade curtain (2) and the pull cable (4) is set on each pulley of the pulley block (3). The pull cable (4) is connected to the pullback roller (5). The sunshade curtain (2) includes a curtain fabric (21) and side strips (22) provided at both ends of the curtain fabric (21) in the width direction; The pulley group (3) includes at least three groups of pulleys, each group of pulleys including pulleys at both ends of the pulley shaft; When the curtain (21) of the sunshade (2) is unfolded, the stretched cable (4) is mounted on the pulley block (3), and the sunshade (2) is completely disengaged from the pulley block (3) and enters the guide rail pre-installed on the roof of the passenger car; when the curtain (21) is folded and closed, the side strip (22) of the sunshade (2) is mounted on the pulley block (3), and at the same time the sunshade (2) is also mounted on the pulley block (3), and the cable (4) is retracted to the pullback roller (5) of the rear beam of the passenger car.

2. The sunshade system as described in claim 1, characterized in that, The side strip (22) of the sunshade (2) is provided with an upper flange (221) and a lower flange (222) on its upper and lower surfaces, which can engage with the pulley groove (331) of each pulley in the pulley group (3), so that the sunshade (2) can be tightened on the pulley group (3) and can slide on the pulley.

3. The sunshade system as described in claim 1, characterized in that, The pulley block (3) includes three sets of pulleys, which are mounted on the pulley block bracket (6).

4. The sunshade system as described in claim 1, characterized in that, The size of the pulley assembly (3) is adapted to the length of the sunshade curtain (2), so that when the sunshade curtain (2) is folded and closed, the pull plate (1) can be close to the front end of the pulley assembly (3), and when it is unfolded, the cable (4) can also be close to the front end of the pulley assembly (3).

5. The sunshade system as described in any one of claims 1-4, characterized in that, The pull-back roller (5) is an elastic torsion shaft, which can pull the sunshade curtain back from the unfolded state to the folded and closed state through its own elastic torque.

6. The sunshade system as described in any one of claims 1-4, characterized in that, The pull-back roller (5) is a motor-driven rotating shaft, which can pull the sunshade curtain back from the unfolded state to the folded and closed state through motor drive.

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