Sunshade curtain winding device and vehicle window assembly

Abstract

The utility model provides a sunshade curtain winding device and a vehicle window assembly. The sunshade curtain winding device is characterized in that a crankshaft (1) is of an arc-shaped structure; at least one part of the bushing (2) is arranged at the end part of the crankshaft (1) in a sleeving manner; the crankshaft (1) is sleeved with the elastic piece (3), one end of the elastic piece (3) is connected with the lining (2), and the other end of the elastic piece (3) is connected with the crankshaft (1); the crankshaft (1) is sleeved with a flexible part (4), and at least one part of the flexible part (4) is arranged at the end of the lining (2) in a sleeving mode; the sunshade curtain winding device is simple in structure, the problem that the quality of a crankshaft is unstable is solved, and the problem that a straight shaft sunshade curtain affects the comfort of passengers can also be effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile sunshade curtain winding, and more particularly to a sunshade curtain winding device and a vehicle window assembly. BACKGROUND

[0002] Automobile sunshade curtains can effectively isolate the discomfort caused by sunlight and heat to passengers. In recent years, they have been widely used in new energy vehicles. The sunshade curtain fabric winding system commonly used in vehicles is a straight shaft, which occupies the head space of passengers, and the passenger comfort is poor. A small number of arc winding shaft products have complex structures, many quality problems, high costs, and are not accepted by the market. CONTENT OF THE INVENTION

[0003] The present application aims to provide a sunshade curtain winding device and a vehicle window assembly, which has a simple structure, solves the problem of unstable quality of the crankshaft, and solves the problem of passenger comfort affected by the straight shaft sunshade curtain.

[0004] In order to achieve the above-mentioned purpose, the present application provides a sunshade curtain winding device, comprising: a crankshaft, the crankshaft is arranged in an arc structure; a bushing, at least a part of the bushing is sleeved on the end of the crankshaft; an elastic member, the elastic member is sleeved on the crankshaft, and one end of the elastic member is connected with the bushing, and the other end of the elastic member is connected with the crankshaft; and a flexible member, the flexible member is sleeved on the crankshaft, and at least a part of the flexible member is sleeved on the end of the bushing.

[0005] Preferably, the winding device further comprises a bracket, the bracket is arranged through the bushing, and at least a part of the bracket is connected with the end of the crankshaft.

[0006] Preferably, the bushing comprises an elastic pressing part, the elastic pressing part can be deformed under force in a predetermined direction, and at least a part of the flexible member is sleeved on the end of the elastic pressing part.

[0007] Preferably, a protruding part is arranged on the elastic pressing part, and the protruding part is used to limit the position of the end of the flexible member.

[0008] Preferably, a clamping groove is arranged on the bushing, the shape of the clamping groove is matched with and connected with one end of the elastic member.

[0009] Preferably, the crankshaft further comprises a rotation-stopping member, the rotation-stopping member is arranged in the crankshaft and connected with the elastic member.

[0010] Preferably, one end of the elastic member is connected with the rotation-stopping member, the other end of the elastic member is connected with the bushing, and the two ends of the elastic member can rotate relative to the axis of the crankshaft.

[0011] Preferably, the flexible member is self-adapting to the curvature of the crankshaft.

[0012] Preferably, the reeling device further comprises a curtain, one end of the curtain being connected with the flexible member and being reeled on the flexible member.

[0013] Another aspect of the present application provides a vehicle window assembly comprising a frame, wherein a sunshade reeling device is mounted on the frame. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0015] Figure 1 is a structural schematic view of a sunshade reeling device provided by the embodiment of the present application;

[0016] Figure 2 is a structural schematic view of a sunshade reeling device provided by the embodiment of the present application; Figure 1 is a structural schematic view of A part in the embodiment of the present application;

[0017] Figure 3 is a structural schematic view of B part in the embodiment of the present application; Figure 1 is a structural schematic view of B part in the embodiment of the present application;

[0018] Figure 4 is a structural schematic view of a bushing provided by the embodiment of the present application;

[0019] Figure 5 is a structural schematic view of another bushing provided by the embodiment of the present application. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0021] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification and the features of different embodiments or examples without contradiction.

[0022] The present example provides a sunshade roller device which can be applied to automobile sunroofs, side windows, storage curtains and projection screens, as shown in Figure 1 The roller device includes a crankshaft 1, a bushing 2, a resilient member 3 and a flexible member 4, wherein the crankshaft 1 is arranged in an arc structure and the arc of the crankshaft 1 is at least the same as the arc of a part of the structure of the window. The window usually has a certain arc, and the arc-shaped crankshaft 1 can match the arc of the window structure. The sunshade can run smoothly during rolling and unfolding without being affected by the arc-shaped window structure. The arc-shaped crankshaft 1 not only reduces the uneven stress of the sunshade during operation, but also enhances the adaptability to the window structure. The sunshade can be more fitted to the window shape in the retracted state, not only saving space in the car, but also improving the appearance of the vehicle interior.

[0023] It is conceivable that the degree of matching of the crankshaft 1 with the window can be adjusted by the arc radius of the crankshaft 1 to adapt to the window structure of different vehicle models, for example, different window arcs for small cars, SUVs or luxury vehicles. Set the corresponding arc parameters.

[0024] It is conceivable that in a complex window structure, a structure with multiple arc segments can be used, that is, the crankshaft 1 is a combination with multiple arc segments, and the curvature radius of each arc segment can be adjusted according to the local shape of the window.

[0025] Specifically, the precise arc data of the window is obtained by three-dimensional scanning technology, and CAD / CAM technology is used for precise modeling and processing during the production of the crankshaft 1.

[0026] In one example, the crankshaft 1 adopts a modular structure, and the crankshaft 1 is composed of multiple arc components. One or more arc components can be adjusted in arc or replaced to adapt to different vehicle models or different windows according to the shape of the actual window.

[0027] As shown in Figure 2As shown, the bushing 2 is provided in a circular ring or cylindrical structure, the inner diameter of which matches the outer diameter of the end of the crankshaft 1, forming a fitted state with the end of the crankshaft 1, so that the bushing 2 can be stably sleeved on the end of the crankshaft 1.

[0028] The bushing 2 can reduce direct contact between the flexible piece 4 and the end of the crankshaft 1, thereby reducing wear of the crankshaft 1. The length of the bushing 2 can extend to the non-end region of the crankshaft 1 to increase the support area of the flexible piece 4 and improve the stability of the overall structure.

[0029] In one example, the bushing 2 can adopt a segmented or adjustable length structure, and the sleeving range of the bushing 2 can be adjusted according to the actual length of the crankshaft 1 and the needs of the flexible piece 4.

[0030] The elastic piece 3 realizes dynamic recovery of the flexible piece 4 through elastic force, so that the sunshade curtain can adaptively adjust the state during rolling or unfolding, avoiding phenomena such as jamming or relaxation. Figure 1 As shown, the elastic piece 3 is sleeved on the crankshaft 1, and one end thereof is connected with the bushing 2, and the other end thereof is connected with the crankshaft 1. The elastic piece 3 not only can transmit elastic force, but also can provide certain support force to enhance the stability of the flexible piece 4 during sliding or rotating. At the same time, the elastic piece 3 can effectively absorb the vibration and impact force generated during rotation of the sunshade curtain during operation, so as to protect the crankshaft 1 and the bushing 2 from being damaged, and at the same time, improve the service life of the sunshade curtain.

[0031] The connection mode of the elastic piece 3 and the bushing 2 includes but is not limited to clamping groove 21 type fixing, buckle type fixing and threaded connection. In one example, the surface of the bushing 2 is provided with an elastic piece 3 clamping groove 21, the shape of the clamping groove 21 matches the shape of the end of the elastic piece 3, so that the end of the elastic piece 3 is embedded in the clamping groove 21 for fixing. It should be noted that in this example, the end of the elastic piece 3 close to the bushing 2 is defined as the end, and the end of the elastic piece 3 away from the bushing 2 is defined as the front end. In another example, the end of the elastic piece 3 is in the shape of a screw thread, and the surface of the bushing 2 is provided with a threaded hole, the end of the elastic piece 3 is connected with the threaded hole for fixing, and is convenient for disassembly and assembly. In another example, the elastic piece 3 is connected with the bushing 2 through a buckle mechanism, simplifying the assembly process.

[0032] The connection mode of the elastic piece 3 and the crankshaft 1 includes but is not limited to welding fixing, sleeve ring fixing and adhesive fixing. In one example, the front end of the elastic piece 3 is welded on the crankshaft 1, improving the firmness of the connection between the two, which is suitable for non-detachable scenes. In another example, a rotation stopping terminal is arranged on the crankshaft 1, and the front end of the elastic piece 3 is connected with the rotation stopping terminal. In another example, an industrial adhesive is used to fix the elastic piece 3.

[0033] Specifically, as shown in Figure 3As shown, the crankshaft 1 also includes a rotation-stopping member 11, which can be provided as a latch structure, and can adopt a rotation-stopping terminal that extends into a slot in the crankshaft 1 to form a rotation-stopping connection. The crankshaft 1 is provided with a recess or a limiting hole, and the rotation-stopping member 11 is matched with the crankshaft 1 through embedding and latch connection, facilitating disassembly and assembly. Through the fixing action of the rotation-stopping member 11, the rigid connection between the elastic member 3 and the crankshaft 1 is enhanced.

[0034] The front end of the elastic member 3 is connected with the rotation-stopping member 11, and the two can be connected through rivets, pins, buckles or nesting, etc. The rotation-stopping member 11 functions to enable the front end and the tail end of the elastic member 3 to rotate relative to each other, so that the torsional force of the elastic member 3 can be transmitted. When the elastic member 3 provides a torque reset function, the rotation-stopping member 11 can effectively transmit the reaction force of the elastic member 3.

[0035] The elastic member 3 is uniformly arranged along the axial direction of the crankshaft 1, which can uniformly distribute the elastic force in the operation of the sunshade curtain, avoiding wear or failure caused by local stress concentration. It is conceivable that the elastic force of the elastic member 3 can be adjusted, for example, by changing the length of the elastic member 3, i.e. by adjusting the pre-compression amount of the elastic member 3 to change the elastic force, or by replacing the elastic member 3 with different stiffness, or by adding an adjustable sliding block, the front end of the elastic member 3 being connected with the sliding block, the stretching or compression state of the elastic member 3 being changed by adjusting the position of the sliding block.

[0036] The elastic member 3 can be pre-assembled with the bushing 2 or the crankshaft 1 as an integrated structure in the production stage, and only needs to be simply inserted or clamped to complete the overall assembly during the installation of the rolling device.

[0037] The elastic member 3 adopts a metal coil spring, which is suitable for axial stretching and compression. The surface of the elastic member 3 can be coated with a lubricant to reduce sliding friction.

[0038] As shown in Figure 1 and 2 The flexible member 4 adopts a flexible tube, which has softness and certain mechanical strength. The flexible member 4 adopts a circular cross section, which facilitates sliding rotation. Nesting recesses are formed in the inner part of the two ends of the flexible member 4, which are matched with the end part of the bushing 2 to firmly connect. The end part of the flexible member 4 is thickened to enhance the stability of the sleeve connection on the bushing 2 and prevent slipping. A non-slip ring can be added to the outer wall of the end part of the flexible member 4, which can increase the friction with the bushing 2 and avoid loosening or deviation of the flexible member 4 and the bushing 2 during operation.

[0039] The elastic member 3 is arranged between the flexible member 4 and the crankshaft 1. The softness of the flexible member 4 enables it to naturally fit the arc-shaped structure of the crankshaft 1 and the elastic member 3, achieving smooth sliding and rotation when the crankshaft 1 rotates.

[0040] As shown in Figure 2As shown, the flexible piece 4 covers all or part of the area of the crankshaft 1 and the elastic piece 3, and covers the end of the bushing 2 at both ends, forming a continuous sliding rotation structure, and covering the end of the bushing 2 can protect the bushing 2 and the crankshaft 1 from dust, impurities or liquid intrusion. Specifically, the inner diameter of the flexible piece 4 is slightly smaller than the outer diameter of the bushing 2, and when the flexible piece 4 is sleeved on the end of the bushing 2, it can provide a certain fastening effect, and the inner diameter of the flexible piece 4 is slightly larger than the outer diameter of the elastic piece 3.

[0041] In specific use, the length of the flexible piece 4 can be cut according to the arc of the crankshaft 1; in the case of a long crankshaft 1, multiple flexible pieces 4 can be used to splice and set, and the flexible pieces 4 are connected by insertion or adhesion, realizing the overall structure.

[0042] The surface of the flexible piece 4 is treated to be wear-resistant, for example, a wear-resistant coating or fiber layer is added to the surface of the flexible piece 4 to adapt to the high-frequency sliding rotation scene; the surface of the flexible piece 4 can also be provided with a corrugated structure or use sound-absorbing materials to reduce noise generated during sliding rotation.

[0043] The fixing mode of the flexible piece 4 and the bushing 2 includes but is not limited to buckle fixing, adhesive fixing and threaded locking, in one example, buckles are arranged at the ends of the flexible piece 4, which cooperate with the bushing 2 to enable quick disassembly; in another example, glue is used to adhere the connection between the flexible piece 4 and the bushing 2, which is suitable for scenarios where disassembly is not allowed; in another example, internal threads are formed at the ends of the flexible piece 4, and external threads are formed at the ends of the bushing 2, and the two are threadedly connected.

[0044] As shown in FIGS. Figure 1 and 2 The bracket 5 is arranged at both ends of the rolling device, the bracket 5 passes through the bushing 2 from inside and extends inwardly to connect with the end of the crankshaft 1, for fixing the crankshaft 1, the bracket 5 can provide sufficient rigidity to prevent the crankshaft 1 from being excessively deformed or displaced during use, and the other end of the bracket 5 is fixedly connected with the vehicle window or vehicle body, realizing integrated installation of the rolling device and the vehicle body, and the shape of the outer end of the bracket 5 needs to be set according to the geometric shape of the actual vehicle window frame to prevent the rolling device from affecting the normal opening and closing or sealing function of the vehicle window.

[0045] The fixing mode of the bracket 5 and the vehicle window or vehicle body includes but is not limited to bolt connection, adhesive fixing and embedded fixing, in one example, the bracket 5 is fixed on the vehicle window frame through standard threaded holes; in another example, the bracket 5 is fixed on the vehicle window frame using an adhesive, which is suitable for vehicle body structures that cannot be drilled; in another example, the bracket 5 can be inserted into a pre-set vehicle window track or embedded into the vehicle window frame, forming a concealed installation to improve the overall aesthetic level.

[0046] The example provides two relative motion structures, wherein two ends of the bracket 5 are connected with two ends of the crankshaft 1 respectively, the crankshaft 1 and the bracket 5 form a fixed support structure for the sunshade curtain rolling, and provide support for the sunshade curtain; the inner diameter of the flexible member 4 is larger than the outer diameter of the crankshaft 1, two ends of the flexible member 4 extend to the bushing 2 to form a sleeving relationship with the bushing 2, the bushing 2 is sleeved on the end of the crankshaft 1 and overlaps with a part of the flexible member 4, the flexible member 4 and the bushing 2 form a sliding rotation structure, can slide and rotate around the crankshaft 1, so as to realize the rolling and unfolding of the sunshade curtain; the elastic member 3 is arranged between the flexible member 4 and the crankshaft 1, one end of the elastic member 3 is fixed on the crankshaft 1 and cannot rotate along the axis, the other end of the elastic member 3 is fixed on the bushing 2, the function of the elastic member 3 is to provide a rotating reset driving force for the flexible member 4, so that the sunshade curtain can automatically recover to the rolling state, when the rotating structure formed by the flexible member 4 and the bushing 2 rotates along the axis of the crankshaft 1, the elastic member 3 is forced to rotate and store a recovery torque in the opposite direction of the rotating direction, the recovery torque of the elastic member 3 drives the bushing 2 and the flexible member 4 to rotate in the opposite direction along the axis of the crankshaft 1, so as to realize the rolling of the sunshade curtain fabric.

[0047] As shown in Figure 4 The bushing 2 includes an elastic pressing part 22, the elastic pressing part 22 is integrally formed with the bushing 2 body, one end of the elastic pressing part 22 is connected with the bushing 2 body, the other end is an open structure, the elastic pressing part 22 is arranged as a circular arc part, can bear force uniformly and adapt to the circumferential surface of the flexible member 4, the elastic pressing part 22 can be deformed in the radial direction, during the sleeving of the flexible member 4, the elastic pressing part 22 can shrink to the inside of the bushing 2, so as to reduce the assembly difficulty, and after the assembly is completed, the elastic pressing part 22 automatically recovers the shape, tightly cooperates with the end part of the flexible member 4 and exerts pressure on the inner wall of the flexible member 4 through the elastic rebound force to provide continuous support.

[0048] The elastic deformation of the elastic pressing part 22 can also adapt to the size error of the flexible member 4, for the crankshafts 1 and the flexible members 4 with different curvatures, the elastic pressing part 22 can also realize self-adaptive cooperation by adjusting the deformation amount in the preset direction.

[0049] The elastic pressing part 22 can be embedded with an adjustable spring or a memory alloy strip, the elastic strength of the elastic pressing part 22 is adjusted according to actual needs, so as to adapt to different working environments.

[0050] The surface of the elastic pressing part 22 is provided with anti-skid texture or friction coating, so as to enhance the friction force between the flexible member 4 and the elastic pressing part 22 and avoid falling off.

[0051] As shown in Figure 5As shown, the elastic pressing part 22 is provided with a protruding part 23, which is integrally formed with the elastic pressing part 22, and is in the shape of a rectangle or a ring. The height of the protruding part 23 is greater than the outer circular surface of the bushing 2, so that it can limit the position of the end of the flexible part 4 in the normal state, and can sink below the outer circular surface of the bushing 2 when deformed under force.

[0052] The protruding part 23 can form a physical limit when the end of the flexible part 4 is in contact with the elastic pressing part 22, so as to prevent the flexible part 4 from sliding out of the set position due to external force. When the flexible part 4 slides or rotates, the protruding part 23 can detect the position of the end of the flexible part 4, so as to avoid misplacement or loosening of the flexible part 4. At the same time, the elastic pressing part 22 can provide buffering in the axial direction, so as to reduce friction and wear.

[0053] The front end of the protruding part 23 can be designed in the shape of a taper or a circular arc, so as to guide the flexible part 4 to smoothly slide through during the sleeving process. The protruding part 23 can sink below the outer circular surface of the bushing 2 through the deformation of the elastic pressing part 22, so as to release the limitation on the flexible part 4 when needed, and facilitate the adjustment or disassembly of the flexible part 4. After the pressure is released, the protruding part 23 automatically returns to the normal state, and re-exerts the limiting effect. When the end of the flexible part 4 is impacted by external force, the elastic property of the protruding part 23 can absorb part of the impact force, so as to protect the overall structure of the device from being damaged.

[0054] The rolling device further comprises a curtain cloth, which is made of a flexible sheet material. The surface of the curtain cloth can be specially treated according to the use, such as a waterproof coating, an anti-ultraviolet coating or an antistatic treatment, so as to adapt to different use environments.

[0055] The curtain cloth is designed in the shape of a rectangle or a trapezoid, and is matched with the width of the sunshade curtain. The edges of the curtain cloth can be designed as reinforced edge, so as to improve the tensile property through reinforcement treatment and prevent damage during use. The lower end of the curtain cloth can be provided with a counterweight rod, so as to be more stable when stretched, and make the curtain cloth more flat when unfolded.

[0056] The connection between the curtain cloth and the flexible part 4 includes but is not limited to adhesive fixing, sewing fixing, hot melting fixing and movable connection. In one example, one end of the curtain cloth is adhered to the surface of the flexible part 4 by an adhesive, which is suitable for a sunshade curtain made of light material. In another example, the edges of the curtain cloth are fixed together with the flexible part 4 by a line sewing method, which can provide strong tensile strength. In another example, the connection between the curtain cloth and the flexible part 4 is melted by high temperature, so as to form an integrated structure. In another example, a slot or a buckle strip is reserved on the surface of the flexible part 4, and one end of the curtain cloth is inserted and fixed in the flexible part 4, so as to facilitate assembly and disassembly. In another example, the curtain cloth and the flexible part 4 are connected by a buckle ring, a zipper or a magic tape, so as to realize quick replacement or adjustment of the curtain cloth.

[0057] The vehicle window assembly comprises a frame which is arranged to surround the vehicle window and has a rectangular or trapezoidal shape customized according to the shape of the vehicle window, the frame is made of aluminum alloy, stainless steel or composite material, the frame is connected to the vehicle body by buckling, bolting or welding, and the frame is provided with mounting holes or mounting plates for fixing the support 5 of the sunshade curtain winding device.

[0058] A sealing strip or rubber gasket is embedded at the connection between the frame and the vehicle body and at the connection between the frame and the support 5, which can slow down the impact force caused by vehicle vibration and bumping, prolong the service life of the sunshade curtain winding device, and improve the quietness.

[0059] The connection between the frame and the support 5 includes but is not limited to bolting, buckle embedding, adhesive fixing and sliding groove embedding, in one example, the frame bottom is designed with mounting holes and connected to the frame through the reserved holes by bolts; in another example, the support 5 bottom is designed with a buckle structure and directly embedded into the fixed groove in the frame, which facilitates quick installation and disassembly; in another example, an adhesive is used to connect the contact surface between the frame and the support 5, which is suitable for lightweight sunshades; in another example, the frame is provided with a sliding groove, and the support 5 is assembled into the sliding groove by sliding.

[0060] Although the embodiments of the utility model have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

[0061] List of reference signs:

[0062] Crankshaft 1

[0063] Rotation-stopping member 11

[0064] Bushing 2

[0065] Clamping groove 21

[0066] Elastic pressing part 22

[0067] Protruding part 23

[0068] Elastic member 3

[0069] Flexible member 4

[0070] Support 5

Claims

1. A sunshade curtain retraction device, characterized in that, include: Crankshaft (1), wherein the crankshaft (1) is configured in an arc shape; Bushing (2), at least a portion of which is fitted onto the end of the crankshaft (1); An elastic element (3) is sleeved on the crankshaft (1), with one end connected to the bushing (2) and the other end connected to the crankshaft (1); and A flexible element (4) is sleeved on the crankshaft (1), and at least a portion of the flexible element (4) is sleeved on the end of the bushing (2).

2. The sunshade curtain retraction device according to claim 1, characterized in that, The winding device also includes a bracket (5) that passes through the bushing (2) and at least a portion of the bracket (5) is connected to the end of the crankshaft (1).

3. The sunshade curtain retraction device according to claim 1, characterized in that, The bushing (2) includes an elastic pressing part (22), which can be deformed by force in a preset direction, and at least a portion of the flexible member (4) is sleeved on the end of the elastic pressing part (22).

4. The sunshade curtain retraction device according to claim 3, characterized in that, The elastic pressing part (22) is provided with a protrusion (23), which is used to limit the row position of the end of the flexible member (4).

5. The sunshade curtain retraction device according to claim 1, characterized in that, The bushing (2) has a slot (21) which is shaped to fit one end of the elastic member (3) and is connected to one end of the elastic member (3).

6. The sunshade curtain retraction device according to claim 1 or 5, characterized in that, The crankshaft (1) also includes an anti-rotation element (11), which is disposed inside the crankshaft (1) and connected to the elastic element (3).

7. The sunshade curtain retraction device according to claim 6, characterized in that, One end of the elastic element (3) is connected to the anti-rotation element, and the other end of the elastic element (3) is connected to the bushing (2). The two ends of the elastic element (3) can rotate relative to each other along the axis of the crankshaft (1).

8. The sunshade curtain retraction device according to claim 1, characterized in that, The flexible component (4) adapts to the curvature of the crankshaft (1).

9. The sunshade curtain retraction device according to claim 1, characterized in that, The winding device also includes a curtain, one end of which is connected to the flexible member (4) and wound onto the flexible member (4).

10. A vehicle window assembly, characterized in that, The device includes a frame on which the sunshade curtain retraction device according to any one of claims 1-9 is mounted.

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