Sunshade curtain device and sunshade curtain system for a window of a vehicle

Abstract

The application discloses a sunshade curtain device and a sunshade curtain system for a window of a vehicle. The sunshade curtain device comprises a first roller assembly, a second roller assembly and a curtain fabric assembly. The first roller assembly is a first roller. The second roller assembly is arranged side by side with the first roller and is arc-shaped. The second roller assembly comprises a fixedly arranged mandrel and a sleeve assembly rotatably sleeved on the mandrel. The curtain fabric assembly comprises a curtain fabric and an elastic supporting rod. The supporting rod is adapted to be wound on the first roller, and the curtain fabric is adapted to be wound on the sleeve assembly of the second roller assembly. The supporting rod is adapted to be released from the first roller and to be unfolded, and the curtain fabric is released from the sleeve assembly of the second roller assembly and is unfolded and supported by the supporting rod. The shape of the second roller assembly matches the shape of an instrument panel device, facilitating installation of the sunshade curtain device on the instrument panel device. After the curtain fabric is unfolded, the curtain fabric is also arc-shaped and matches the shape of the window, facilitating use of the sunshade curtain device.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a sunshade device for vehicle windows. This application also relates to a sunshade system including such a sunshade device. Background Technology

[0002] Some vehicles are equipped with sunshade devices for the windshield. For example, sunshade devices are mounted on the dashboard. A sunshade device consists of a curtain and a roller. The curtain is rolled up on the roller. After parking, the curtain can be released from the roller and unfolded to block sunlight from directly entering the vehicle's interior.

[0003] In some sunshade devices, the roller is straight. This roller shape does not match the shape of the dashboard unit, which is not conducive to the installation and use of the sunshade device on the dashboard unit. Summary of the Invention

[0004] To address the aforementioned technical problems, a first aspect of this application provides a sunshade device for a vehicle window. The sunshade device includes a first roller assembly, a second roller assembly, and a curtain assembly. The first roller assembly includes a first roller extending along a first direction. The second roller assembly is arranged side-by-side with the first roller and has an arcuate shape. The second roller assembly includes a mandrel with an arcuate shape and a sleeve assembly sleeved on the mandrel. The mandrel is fixedly disposed, and the sleeve assembly is constrained into an arcuate shape by the mandrel and adapted to rotate relative to the mandrel. The curtain assembly includes a curtain and a resilient support rod attached to the curtain. The support rod is adapted to be wound onto the first roller, and the curtain is adapted to be wound onto the second roller assembly. The support rod is adapted to be released from the first roller and unfolded along a second direction parallel to the window's direction of inclination, and the curtain is released from the second roller assembly and unfolded along the second direction by being supported by the support rod.

[0005] In one embodiment, the sleeve assembly includes a plurality of first sleeves arranged in series and a flexible connector connecting adjacent first sleeves; the first sleeves and the connector are adapted to rotate relative to a mandrel.

[0006] In one embodiment, the connector includes two connecting segments and a main body segment located between the two connecting segments. Each connecting segment is fixedly connected to a corresponding first sleeve, and the main body segment is flexible.

[0007] In one embodiment, a weakening groove extending in the circumferential direction is constructed on the main body segment.

[0008] In one embodiment, each first sleeve has a receiving section whose inner surface shape matches the shape of the circumferential surface of the connecting section, such that the connecting section is adapted to be inserted into the corresponding receiving section.

[0009] In one embodiment, each connecting segment and its corresponding receiving segment are fixedly connected by a connecting pin passing through the connecting segment and its corresponding receiving segment.

[0010] In one embodiment, the connector is rotatably engaged with the mandrel, and each first sleeve is radially spaced from the mandrel.

[0011] In one embodiment, at least one end of the second reel assembly is provided with a first end member, and a first sleeve engages with the first end member and is adapted to rotate relative to the first end member. The second reel assembly also includes a first drive spring located within the first sleeve and connected between the first end member and an adjacent connector. When the curtain is released from the second reel assembly, the sleeve assembly is rotated by the curtain and the first drive spring is tensioned; and the first drive spring is adapted to return to its original position to drive the sleeve assembly to rotate such that the curtain is wound onto the sleeve assembly of the second reel assembly.

[0012] In one embodiment, the sleeve assembly includes an integral second sleeve fitted onto a mandrel, the second sleeve being constrained into an arc shape by the mandrel. The second reel assembly further includes a second drive spring disposed within the second sleeve; the two ends of the second drive spring are respectively engaged with the mandrel and the second sleeve.

[0013] In one embodiment, at least one end of the second reel assembly is provided with a second end piece, and a spring seat is provided within the second sleeve. A mandrel extends through the spring seat and is fixedly connected to the second end piece. The spring seat is fixedly connected to the second sleeve and is adapted to rotate relative to the mandrel. Both ends of the second drive spring are fixedly connected to the second end piece and the spring seat, respectively.

[0014] In one embodiment, the sunshade device further includes a retainer, to which the second roller assembly is rotatably engaged and held in an arcuate shape by the retainer.

[0015] In one embodiment, the retainer includes a first retainer. The first retainer includes a first base and two clamping arms rotatably mounted on the first base. The two clamping arms are opposite to and spaced apart from each other, defining a first receiving groove extending in a first direction. The first receiving groove has a first opening. A second reel assembly is rotatably disposed within the first receiving groove, and a curtain extends from the first opening.

[0016] In one embodiment, the first retainer further includes two support arms rotatably mounted on the first base and positioned between two clamping arms. The height of the two support arms is lower than the height of the first slot and supports the second reel assembly.

[0017] In one embodiment, the first retainer further includes a base and a first spring. The base is movably disposed on a first base. The first spring is disposed between the base and the first base and adapted to push the base toward the first receiving slot. Two support arms contact the base and abut against two clamping arms, respectively. The two support arms are adapted to be rotated by the base and drive the two clamping arms to rotate, such that the lateral dimension of the first receiving slot decreases or increases.

[0018] In one embodiment, the clamping arm and / or support arm are rotatably mounted with a first roller, the first roller being adapted to contact the curtain fabric.

[0019] In one embodiment, the retainer includes a second retainer. The second retainer includes a second base and a plurality of second rollers. The second base defines a receiving cavity having an outlet. The plurality of second rollers are disposed within the receiving cavity. The plurality of second rollers are stacked and define a receiving space extending in a first direction. A second roller assembly is rotatably positioned within the receiving space. A curtain contacts the plurality of second rollers and extends from the outlet of the receiving cavity.

[0020] In one embodiment, the plurality of second rollers include two pressing cylinders and a support cylinder. The two pressing cylinders are on the same layer, and the support cylinder is on another layer and adjacent to the two pressing cylinders, such that the support cylinder and the two pressing cylinders together define a receiving space. The second retainer also includes a second spring and a third spring. The second spring is connected between the two pressing cylinders. The third spring pushes the support cylinder into the receiving space. The support cylinder and the two pressing cylinders are in close contact with the second rotating shaft assembly.

[0021] In one embodiment, the retainer includes a third retainer comprising a first clamp and a second clamp disposed opposite to each other. The first clamp and the second clamp together define a second receiving groove extending in a first direction, the second receiving groove having a second opening. A second roller assembly is rotatably disposed within the second receiving groove, and the fabric extends from the second opening.

[0022] In one embodiment, the first reel assembly further includes a motor, and the first reel is driven to rotate by the motor.

[0023] In one embodiment, the support rod has a movable end opposite to the first reel. The first reel assembly further includes a pressing component disposed between the movable end of the support rod and the first reel and adapted to press at least a portion of the support rod.

[0024] In one embodiment, the pressing assembly includes a support shaft and a pressure roller. The support shaft is arranged side-by-side with a first reel and is driven to rotate by a motor. The pressure roller is mounted on the support shaft and corresponds to a support rod. The pressure roller is adapted to press at least a portion of the support rod.

[0025] In one embodiment, the pressure roller rotates in the same direction as the first reel, and the rotational speed of the pressure roller is greater than that of the first reel.

[0026] In one embodiment, the pressing component further includes a transmission component, through which the motor drives the load-bearing shaft to rotate.

[0027] In one embodiment, there are multiple support rods, and the multiple support rods extend parallel to each other.

[0028] In one embodiment, the curtain has a first surface and a second surface opposite to each other; the first surface faces the window and is coated with a light-blocking coating.

[0029] A second aspect of this application discloses a sunshade system for vehicle windows. The sunshade system includes a mounting bracket and a sunshade assembly for vehicle windows as described above. The sunshade assembly is mounted within the mounting bracket.

[0030] In one embodiment, the mounting bracket is implemented as a dashboard device.

[0031] In one embodiment, the dashboard assembly is provided with a guide groove extending in a second direction, and the curtain assembly is adapted to extend through the guide groove in the second direction.

[0032] The beneficial effects of this application are as follows: In the sunshade device of this application, the second roller assembly for carrying the curtain fabric is arc-shaped. This allows the shape of the second roller assembly to match the shape of the dashboard device, facilitating the installation of the sunshade device on the dashboard device. After the curtain fabric is unfolded, it also has an arc-shaped surface that matches the shape of the vehicle's windows, further facilitating the use of the sunshade device. Attached Figure Description

[0033] With the aid of non-limiting examples of exemplary embodiments of this application, the present application will be further described in a detailed description following with reference to several accompanying drawings. The drawings are not drawn to scale.

[0034] Figure 1 A portion of a vehicle according to one embodiment of this application is schematically shown.

[0035] Figure 2 The front windshield and sunshade device are shown schematically.

[0036] Figure 3 The sunshade device is shown schematically.

[0037] Figure 4 schematically shown Figure 3 The installation structure of the sunshade device on the dashboard unit is shown.

[0038] Figure 5aThe first reel assembly is shown schematically.

[0039] Figure 5b An exploded view of the first reel assembly is shown schematically.

[0040] Figure 6 A first embodiment of the second reel assembly is schematically shown.

[0041] Figure 7 schematically shown Figure 6 An exploded view of a portion of the second reel assembly shown.

[0042] Figure 8 schematically shown Figure 6 AA section diagram.

[0043] Figure 9 A second embodiment of the second reel assembly is schematically shown.

[0044] Figure 10a schematically shown Figure 9 The BB cross-section diagram shows the drive spring being tensioned.

[0045] Figure 10b schematically shown Figure 9 The BB section diagram shows the return of the drive spring.

[0046] Figure 11 The illustration shows the curtain of the sunshade device in the unfolded state.

[0047] Figure 12 The illustration shows the curtain of the sunshade device in a rolled-up state.

[0048] Figure 13 The first retainer is shown schematically.

[0049] Figure 14 A schematic cross-sectional view of the first retainer is shown.

[0050] Figure 15 The first retainer and the second reel assembly are shown schematically.

[0051] Figure 16 The second retainer is shown schematically.

[0052] Figure 17 The pressing cylinder and the bearing cylinder of the second retainer are schematically shown.

[0053] Figure 18 The third retainer is shown schematically.

[0054] Figure 19 The third retainer and the second reel assembly are shown schematically.

[0055] Figure 20 schematically shown Figure 19 Cross-sectional view.

[0056] List of reference numerals in the attached figures. 1: Vehicle; 11: Windshield; 12: Sunshade system; 13: Rearview mirror; 121: Instrument panel assembly; 122: Guide groove; 123: Sunshade assembly for vehicle windows; 124: Support block; 125: Guide clearance; 201: First reel assembly; 202: Second reel assembly; 202a: Mandrel; 202b: Sleeve assembly; 202c: First drive spring; 202d: Second drive spring; 203: Curtain assembly; 204: Retainer; 205: Pressure cap; 206: Base; 208: Support; 211: First reel; 212: Motor; 213: Reel holder; 221: First sleeve; 222: Second connecting hole; 223: Receiving section; 224: Second sleeve; 225: Spring seat; 227: Second end piece; 231: First connecting hole; 232: Connector; 234: Connecting section; 235: Main body section; 236: Weakening groove; 237: First end piece; 24: Curtain; 241: Cut; 25: Support rod; 251: Mounting end; 252: Moving end; 253: Main body section; 26: First retainer; 260: First base; 261: Clamping arm; 261a: First mounting part; 261b: First clamping part; 261c: First driving part; 262: Support arm; 262a: Second mounting part; 262b: Second clamping part; 262c: Second driving part; 263: First receiving groove; 264: First slot; 265: First roller; 266: Base; 267: First spring; 27: Second retainer; 271: Receiving space; 272: Second base; 273: Receiving cavity; 274: Outlet of the receiving cavity; 275: Second roller; 275a: Pressing cylinder; 275b: Bearing cylinder; 276: Second spring; 277: Third spring; 28: Pressing assembly; 281: Bearing shaft; 282: Pressure roller; 283: Transmission assembly; 29: Third retainer; 291: First clamp; 292: Second clamp; 293: Second receiving slot; 294: Second slot opening; D1: First direction; D2: Second direction; Z: Vertical direction. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] Figure 1 A portion of a vehicle 1 according to one embodiment of this application is schematically shown. Figure 1 As shown, the front of vehicle 1 is provided with a windshield 11 (the windshield is a window of the vehicle) and a sunshade system 12 adjacent to the windshield 11. (Refer to...) Figure 1 and Figure 2 The sunshade system 12 includes an instrument panel unit 121 and a sunshade device 123 installed within the instrument panel unit 121. When the curtain assembly 203 of the sunshade device 123 (described below) is deployed, it obstructs the windshield 11 to prevent direct sunlight from entering the vehicle's interior. It should be understood that the sunshade device can also be installed at the rear window of the vehicle (which is also a window of the vehicle) using appropriate mounting brackets (not shown in the figures), which will not be elaborated upon here.

[0059] Curtain assembly 203 includes curtain 24 (such as...) Figure 3 (As shown). The curtain 24 has a first surface and a second surface that are opposite each other. When the curtain 24 is unfolded, the first surface faces the windshield 11 and is coated with a light-blocking coating, while the second surface faces the interior of the vehicle. This provides better sun shading for the curtain 24 (or curtain assembly 203), and the light-blocking coating protects the curtain 24, helping to extend its service life. Some vehicles are also equipped with a projection device (not shown), which can also be used as a screen when the curtain assembly is unfolded. For example, the projection device projects onto the second surface of the curtain. The sunshade assembly 123 will now be described.

[0060] like Figure 3 As shown, the sunshade assembly 123 includes a first roller assembly 201, a second roller assembly 202, and a curtain assembly 203. The sunshade assembly 123 also has a base 206. The first roller assembly 201 and the second roller assembly 202 are mounted on the base 206. Thus, by connecting the base 206 to the dashboard assembly 121, the sunshade assembly 123 can be conveniently installed within the dashboard assembly 121.

[0061] like Figure 5a and Figure 5bAs shown, the first reel assembly 201 includes a first reel 211 extending along a first direction D1. For example, the first direction D1 generally corresponds to the width direction of the vehicle. The first reel assembly 201 also includes a motor 212 connected to the drive end of the first reel 211 to drive the first reel 211 to rotate.

[0062] In one embodiment, the first reel assembly 201 further includes two supports 208 and two pressure caps 205. The first reel 201 and the bearing shaft 281 of the pressing assembly 28 (described below) are rotatably mounted on the two supports 208, and the two pressure caps 205 are respectively mounted on the two supports 208 and constrain the first reel 201 and the bearing shaft 281. The motor 212 is mounted on one of the supports 208. Thus, the first reel assembly 201 forms a whole and is mounted on the base 206 via the two supports 208.

[0063] The second roller assembly 202 is arranged side-by-side with the first roller assembly 211. For example, the second roller assembly 202 also extends substantially along the first direction D1 (i.e., the first roller assembly 201 and the second roller assembly 202 are substantially parallel), and the first roller assembly 201 is located between the second roller assembly 202 and the windshield 11. In addition, the second roller assembly 202 has an arcuate shape. In this way, the shape of the second roller assembly 202 matches the shape of the instrument panel unit 121 and the shape of the windshield 11, which facilitates the installation and use of the sunshade device 123 within the instrument panel unit 121.

[0064] The second reel assembly 202 includes a mandrel 202a with an arcuate shape, a flexible sleeve assembly 202b sleeved on the mandrel 202a, and a drive spring disposed between the mandrel 202a and the sleeve assembly 202b. The sleeve assembly 202b is bent into the desired arcuate shape by the mandrel 202a. In one embodiment, the mandrel is an arcuate metal strip. The mandrel 202a is fixedly mounted on the base 206 and does not rotate, while the sleeve assembly 202b is rotatable relative to the mandrel 202a. The two ends of the drive spring engage with the mandrel and the sleeve assembly, respectively, such that the drive spring is tensioned as the sleeve assembly 202b rotates, and when the drive spring returns to its original position, it drives the sleeve assembly 202b to rotate, as will be described below. The drive spring is, for example, a torsion spring.

[0065] The curtain assembly 203 includes a curtain 24 and a plurality of resilient support rods 25 attached to the curtain 24. These support rods 25 are arranged parallel to each other and parallel to the unfolding direction of the curtain 24 (as described below). These support rods are substantially identical to each other; for simplicity, only one support rod will be described below. It should be understood that, depending on the actual situation, only one support rod may be provided on the curtain.

[0066] The curtain 24 is supported on the sleeve assembly 202b of the second roller assembly 202.

[0067] The support rod 25 includes a mounting end 251, a moving end 252, and a main body section 253 located between the mounting end 251 and the moving end 252. The mounting end 251 is connected to a first roller 211, the moving end 252 is connected to a curtain 24 and faces away from the first roller 211, and the main body section 253 is spaced apart from the curtain 24. In one embodiment, as shown... Figure 5a and Figure 5b As shown, a winding seat 213 is provided on the first reel 211. The mounting end 251 of the support rod 25 is connected to the winding seat 213. In one embodiment, the support rod is made of a flexible steel sheet, making it easy to bend and unwind elastically, and having appropriate stiffness and strength after unwinding. Such a support rod is well known to those skilled in the art, for example, similar to the strip of a steel tape measure, and will not be described further.

[0068] When the motor 212 drives the first roller 211 to rotate in the first rotation direction, the support rod 25 is gradually released from the first roller 211 and automatically unfolds in a second direction D2 parallel to the inclined direction of the windshield 11. The support rod 25 also pushes the curtain 24 to move in the second direction D2, so that the curtain 24 is released from the sleeve assembly 202b (or the second roller assembly 202) and gradually unfolds in the second direction D2 (in other words, after the support rod 25 unfolds, the extension direction of the support rod 25 is the same as the unfolding direction of the curtain 24). During this process, the sleeve assembly 202b is driven by the curtain 24 and rotates synchronously with the first roller 211, and the drive spring of the second roller assembly 202 is tensioned. After the curtain 24 unfolds, at least a portion of the windshield 11 is covered by the curtain 24 (e.g., Figure 11 (As shown), to prevent direct sunlight from shining into the vehicle's interior. Furthermore, because the second roller assembly 202 is curved, the curtain 24, when unfolded, has a curved surface that matches the shape of the windshield 11. In this way, the curtain 24 can effectively shield the windshield 11.

[0069] It should be noted that, such as Figure 3 As shown, the edge of the curtain 24 opposite to the second roller assembly 202 has a cutout 241. When the curtain 24 is unfolded, the interior rearview mirror 13 corresponds to the cutout 241 (e.g., Figure 11 As shown), this avoids the rearview mirror 13 being blocked by the curtain 24.

[0070] When the first motor 212 drives the first roller 211 to rotate in a second rotation direction opposite to the first rotation direction, the support rod 25 is gradually wound onto the first roller 211. During this process, the drive spring of the second roller assembly 202 gradually recovers and drives the sleeve assembly 202b to rotate synchronously with the first roller 211 in the second rotation direction, so that the curtain 24 is gradually wound onto the sleeve assembly 202b (or the second roller assembly 202), and the front windshield 11 is exposed (as shown in the image). Figure 12 (As shown).

[0071] In one embodiment, the drive spring is also given an appropriate pretension. This ensures that during the unfolding of the curtain, the drive spring consistently applies appropriate resistance to the rotation of the sleeve assembly of the second roller assembly, keeping the curtain taut and preventing slack or wrinkles. The pretension of the drive spring can be determined based on actual conditions and is not limited here.

[0072] In one embodiment, such as Figure 4 As shown, a guide groove 122 extending along the second direction D2 is provided on the instrument panel assembly 121. The support rod 25 and the curtain 24 extend through the guide groove 122. In this way, the guide groove 122 guides and constrains the movement of the support rod 25 and the curtain 24, ensuring that the support rod 25 and the curtain 24 extend along the second direction D2.

[0073] As mentioned above, the main body section 253 of the support rod 25 is not connected to the curtain 24. Therefore, during the movement of the curtain 24, the main body section 253 of the support rod 25 will not excessively stretch any part of the curtain 24, which avoids different deformations in different areas of the curtain 24 and thus prevents wrinkles from forming in the curtain 24.

[0074] Figure 6 A first embodiment of the second reel assembly 202 is schematically shown. (Refer to...) Figure 6 and Figure 7 The first embodiment of the second reel assembly 202 includes a mandrel 202a having an arc shape, a sleeve assembly 202b sleeved on the mandrel 202a, and a first drive spring 202c disposed between the mandrel 202a and the sleeve assembly 202b.

[0075] The sleeve assembly 202b includes a plurality of first sleeves 221 arranged in series and a flexible connector 232 connecting adjacent first sleeves 221. In this way, the sleeve assembly 202b is also bent into the desired arc shape.

[0076] like Figure 8As shown, a first end piece 237 is provided at one end of the second reel assembly 202. For example, the first end piece 237 is fixedly mounted on the base 206, and the spindle 202a is fixedly connected to the first end piece 237. A first drive spring 202c (e.g., the first drive spring 202c is located inside the corresponding first sleeve) is also connected between the first end piece 237 and the adjacent connecting member 232. One end of a first sleeve 221 is fitted onto the first end piece 237 and is rotatable relative to the first end piece 237, and the other end is fixedly connected to the connecting member 232. Thus, one end of the first drive spring 202c is connected to the spindle 202a through the first end piece 237, and the other end is connected to the corresponding first sleeve 221 through the connecting member 232. The first drive spring 202c is tensioned as the sleeve assembly 202b rotates, and the first drive spring 202c drives the sleeve assembly 202b to rotate when it returns to its original position.

[0077] In one embodiment, both ends of the second roller assembly are provided with first end pieces, and a first drive spring is connected between each first end piece and a corresponding connector. In this way, both ends of the curtain fabric are driven to move by the sleeve assembly (or the second roller assembly) along the first direction D1, so that the curtain fabric can move more smoothly and is less prone to wrinkles.

[0078] like Figure 7 As shown, connector 232 has two connecting segments 234 and a main body segment 235 located between the two connecting segments 234. The main body segment 235 is flexible, allowing connector 232 to be bent, thereby allowing sleeve assembly 202b to be bent into the desired arc shape.

[0079] Each connecting segment 234 is fixedly connected to the adjacent first sleeve 221. In this way, all the first sleeves 221 and connecting members 232 of the sleeve assembly 202b can rotate synchronously. In one embodiment, the circumferential surface of the connecting segment is prismatic. The first sleeve 221 has a receiving segment 223 (e.g., Figure 8 (As shown), and the shape of the inner surface of the receiving section 223 matches the shape of the circumferential surface of the connecting section. For example, the circumferential surface of the connecting section is hexagonal prism-shaped, and a hexagonal hole is formed inside the receiving section. In this way, the connecting section 234 can be smoothly inserted into the receiving section 223, and the connecting member 232 and the first sleeve 221 will not rotate relative to each other, thereby achieving synchronous rotation of all the first sleeves 221 and the connecting member 232. It should be understood that the circumferential surface of the connecting section can also be other shapes, such as elliptical cylinder, spline, etc. The shape of the axial inner surface of the receiving section matches the shape of the circumferential surface of the connecting section.

[0080] For example Figure 7As shown, a first connecting hole 231 is provided on the connecting section 234 of the connector 232. A second connecting hole 222 is provided on the receiving section 223 of the first sleeve 221. After the connecting section 234 is inserted into the receiving section 223, the first connecting hole 231 and the second connecting hole 222 are aligned. Then, a connecting pin (not shown in the figure) is provided in the first connecting hole 231 and the second connecting hole 222, thereby fixing the connector 232 and the first sleeve 221 together and preventing them from separating along the first direction D1. It should be understood that the curtain fabric is also fixedly connected to the sleeve assembly by the connecting pin.

[0081] For example Figure 7 As shown, the main body segment 235 is provided with weakening grooves 236 extending in the circumferential direction. For example, there may be multiple weakening grooves. In this way, the main body segment 235 has good flexibility, so that the connector can be bent into the desired arc shape. Of course, the main body segment can also be weakened in other ways as needed (e.g., by reducing its thickness), which will not be elaborated here.

[0082] The main body segment 235 is also rotatably engaged with the spindle 202a, which helps to prevent radial wobbling of the sleeve assembly 202b relative to the spindle 202a. Each first sleeve 221 is radially spaced from the spindle 202a, which helps to reduce the rotational resistance of the sleeve assembly 202b, allowing the curtain 24 to move smoothly.

[0083] Figure 9 A second embodiment of the second reel assembly is schematically shown. (Refer to...) Figure 9 As shown in Figure 10, the second reel assembly 202 includes a spindle 202a, an integral second sleeve 224 sleeved on the spindle 202a, and a second drive spring 202d disposed between the spindle 202a and the second sleeve 224. The second sleeve 224 is flexible and constrained into an arc shape by the spindle 202a. The two ends of the second drive spring 202d abut against the spindle 202a and the second sleeve 224, respectively. The curtain fabric 24 is connected to the second sleeve 224.

[0084] In one embodiment, as well as Figure 10a and Figure 10bAs shown, the second reel assembly 202 has second end pieces 227 at both ends. Two spring seats 225 are disposed within the second sleeve 224, spaced apart along a first direction D1. For example, the two spring seats 225 are adjacent to the two second end pieces 227 respectively. A spindle 202a extends through the two spring seats 225 and is fixedly connected to the two second end pieces 227. The two spring seats 225 are fixedly connected to the second sleeve 224 and are rotatable relative to the spindle 202a. A second drive spring 202 is connected between each second end piece 227 and the adjacent spring seat 225, and the second drive spring 202d is located inside the second sleeve 224.

[0085] As the support rod 25 is gradually released from the first roller 211 and automatically unfolds along the second direction D2, the curtain 24 is released from the second sleeve 224 of the second roller assembly 202 and gradually unfolds along the second direction D2. The second sleeve 224 and the spring seat 225 are rotated by the curtain 24, while the second end piece 227 and the spindle 202a do not rotate. Thus, the second drive spring 202d is gradually tensioned, and the diameter of the second drive spring 202d gradually decreases (see reference). Figure 10a ).

[0086] As the support rod 25 is gradually wound onto the first roller 211, the second drive spring 202d gradually recovers and drives the second sleeve 224 and spring seat 225 to rotate relative to the second end piece 227 and the spindle 202a, while the second end piece 227 and the spindle 202a remain stationary. This causes the curtain fabric 24 to gradually wind onto the second roller assembly 202. During this process, the diameter of the second drive spring 202d gradually increases accordingly (see reference). Figure 10b ).

[0087] For example Figure 3 As shown, the sunshade device 123 also includes a plurality of retainers 204. These retainers 204 are mounted on the base 206 and arranged along the extending direction of the second roller assembly 202. The second roller assembly 202 is rotatably engaged with these retainers 204, thereby holding the second roller assembly 202 in the desired arcuate shape. Depending on the actual situation, the number of retainers may also be one, which will not be elaborated here.

[0088] Figure 13 A first retainer 26 (a form of retainer 204) is schematically shown. (See reference...) Figure 13 and Figure 14 The first retainer 26 includes a first base 260, two clamping arms 261 and two supporting arms 262.

[0089] Two clamping arms 261 are rotatably mounted on and extend from a first base 260, and are opposite to and spaced apart from each other. Thus, the two clamping arms 261 define a first receiving groove 263 extending along a first direction D1. The first receiving groove 263 has a first notch 264. Two support arms 262 are rotatably mounted on the first base 260 and positioned between the two clamping arms 261. The height of the two support arms 262 is lower than the height of the first notch 264. A second reel assembly 202 is rotatably disposed within the first receiving groove 263 (e.g., ...). Figure 15 (As shown), and two support arms 262 support the second roller assembly 202. In this way, these first retainers 26 hold the second roller assembly 202 in the desired arcuate shape. The curtain 24 can extend smoothly from the first slot 264 and move toward the guide slot 122, and the first retainers 26 do not substantially impede the movement of the curtain 24.

[0090] The two clamping arms are identical in shape, and the two supporting arms are also identical in shape. For simplicity, only one clamping arm and its corresponding supporting arm will be described below. Figure 14 As shown, the clamping arm 261 has a first mounting portion 261a and a first clamping portion 261b and a first driving portion 261c located on both sides of the first mounting portion 261a. The first mounting portion 261a is hinged to the first base 260, so that the clamping arm 261 can rotate around the first mounting portion 261a.

[0091] The support arm 262 has a second mounting portion 262a and second clamping portions 262b and a second driving portion 262c located on both sides of the second mounting portion 262a. The second mounting portion 262a is hinged to the first base 260, allowing the support arm 262 to rotate around the second mounting portion 262a. In one embodiment, the second clamping portion 262b and the second driving portion 262c form an angle, for example, approximately between 90 and 120 degrees, and the second mounting portion 262a is located at a corner of the support arm 262. Thus, the second driving portion 262c of the support arm 262 contacts the first driving portion 261c of the clamping arm 261, and the second clamping portion 262b of the support arm 262 is adjacent to the first clamping portion 261b of the clamping arm 261.

[0092] For example Figure 14 As shown, the first retainer 26 also includes a base 266 and a first spring 267. The base 266 is movably mounted on the first base 260 in the vertical direction Z. Two support arms 262 are mounted above the base 266 in the vertical direction Z, and a second drive unit 262c contacts the base 266. The first spring 267 is mounted between the base 266 and the first base 260 in the vertical direction Z and pushes the base 266 generally in the vertical direction Z toward the first receiving groove 263.

[0093] When the second reel assembly 202 (and the curtain 24 on the second reel assembly 202) is positioned within the first receiving slot 263, the second reel assembly 202 presses down generally vertically Z-direction on the two support arms 262. The base 266 is pressed down generally vertically Z-direction on the two support arms 262, and the first spring 267 is compressed. The second reel assembly 202 is held by two first clamping portions 261b and two second clamping portions 262b to prevent the second reel assembly 202 from wobbling relative to the first retainer 26.

[0094] As the curtain 24 is gradually released from the second roller assembly 202, the pressure of the second roller assembly 202 on the second clamping portions 262b of the two support arms 262 decreases. The first spring 267 pushes the base 266 upwards generally in the vertical direction Z, causing the second drive portions 262c of the two support arms 262 to move away from each other, thus bringing the two second clamping portions 262b closer together. At the same time, the two second drive portions 262c also push the first drive portions 261c of the two clamping arms 261 away from each other, thus bringing the two first clamping portions 261b closer together. In this way, the lateral dimension of the first receiving groove 263 is reduced. The second roller assembly 202 is still clamped by the two first clamping portions 261b and the two second clamping portions 262b, preventing the second roller assembly 202 from wobbling relative to the first retainer 26.

[0095] As the curtain fabric 24 is rolled onto the second roller assembly 202, the weight of the second roller assembly 202 gradually increases, and the diameter of the curtain tube on the second roller assembly 202 also gradually increases. This causes the base 266 to be pressed downwards by the second roller assembly 202, and the two second clamping portions 262b of the two support arms 262 to move away from each other, while the second driving portions 262c move closer together. Simultaneously, the curtain tube pushes the first clamping portions 261b of the two clamping arms 261 away from each other, and the two first driving portions 261c move closer together (still abutting against the two second driving portions 262c respectively). This increases the lateral dimension of the first receiving groove 263. The second roller assembly 202 is still held by the two first clamping portions 261b and the two second clamping portions 262b, preventing the second roller assembly 202 from wobbling relative to the first retainer 26.

[0096] Also refer to Figure 13 and Figure 14 First rollers 265 are rotatably mounted on both the first clamping portion 261b of the clamping arm 261 and the second clamping portion 262b of the support arm 262. In other words, first rollers 265 are provided both inside the first receiving groove 263 and at the first groove opening 264. The curtain 24 on the second roller assembly 202 contacts these first rollers 265, which helps to reduce the rotational resistance of the second roller assembly 202 and the movement resistance of the curtain 24, making the curtain 24 move more smoothly.

[0097] Figure 16 A second retainer 27 (another form of retainer 204) is schematically shown. The second retainer 27 includes a second base 272 and a plurality of second rollers 275 mounted on the second base 272.

[0098] The second base 272 defines a receiving cavity 273, which has an outlet 274.

[0099] These second rollers 275 are stacked within the receiving cavity 273 and define a receiving space 271 extending along the first direction D1. In one embodiment, referring to... Figure 16 and Figure 17 The number of second rollers 275 is three (e.g., two pressing cylinders 275a and one carrying cylinder 275b). The two pressing cylinders 275a are in the same layer along the vertical direction Z, and the carrying cylinder 275b is below and adjacent to the two pressing cylinders 275a along the vertical direction Z. For example, the gap between the carrying cylinder 275b and the two pressing cylinders 275a corresponds, so that the carrying cylinder 275b and the two pressing cylinders 275a together define the receiving space 271. The second roller assembly 202 is rotatably located within the receiving space 271 and contacts the carrying cylinder 275b and the two pressing cylinders 275a. The curtain 24 moves under the guidance of the corresponding second rollers and the outlet 274 of the receiving cavity 273 extends out. In this way, the second retainer 27 holds the second roller assembly 202 in the desired arcuate shape and does not substantially impede the movement of the curtain 24.

[0100] For example Figure 17 As shown, the second retainer 27 also includes a second spring 276 connected between the two pressing cylinders 275a and a third spring 277 supporting the carrier cylinder 275b in the vertical Z direction. The second spring 276 brings the two pressing cylinders 275a together and presses the curtain on the second roller assembly 202. The third spring 277 pushes the carrier cylinder 275b toward the receiving space 271. In this way, the second roller assembly 202 is in close contact with the carrier cylinder 275b and the two pressing cylinders 275a, preventing the second roller assembly 202 from wobbling within the receiving space 271.

[0101] Figure 18 A third retainer 29 (another form of retainer 204) is schematically shown. The third retainer 29 includes a first clamp 291 and a second clamp 292 disposed opposite to each other. For example, the first clamp 291 and the second clamp 292 are connected together by screws.

[0102] like Figure 19 and Figure 20The first clamp 291 and the second clamp 292 together define a second receiving groove 293 extending along a first direction D1. The second receiving groove 293 has a second opening 294. The second roller assembly 202 is rotatably disposed within the second receiving groove 293. The curtain 24 extends from the second opening 294 and moves toward the guide groove 122, and the third retainer 29 substantially does not impede the movement of the curtain 24.

[0103] Reference Figure 4 and Figure 5a The first reel assembly 201 also includes a pressing component 28. The pressing component 28 is positioned in front of the first reel 211 along the unfolding direction of the support rod 25. For example, the pressing component 28 is positioned between and adjacent to the first reel 211, between the moving end 252 of the support rod 25. When the support rod 25 unfolds, the pressing component 28 presses down on the main body section 253 of the support rod 25, flattening the support rod 25 to stably support the curtain fabric 24. When the support rod 25 retracts, the pressing component 28 also presses down on the main body section 253 of the support rod 25, flattening the support rod 25 to smoothly retract onto the first reel 211.

[0104] Still Figure 5a As shown, the pressing assembly 28 includes a support shaft 281 and a plurality of pressure rollers 282 mounted on the support shaft 281. The support shaft 281 is arranged side by side with the first reel 211 (e.g., the support shaft 281 is generally parallel to the first reel 211). These pressure rollers 282 also correspond to a plurality of support rods 25 and press the main body section 253 of the support rods 25.

[0105] The pressing assembly 28 also includes a transmission assembly 283 (e.g., a gear set). The motor 212 drives the support shaft 281 to rotate in the same direction as the first reel 211 via the transmission assembly 283, and the pressure roller 282 rotates in the same direction as the first reel 211. In one embodiment, the rotational speed of the pressure roller 282 is greater than that of the first reel 211. Thus, during the movement of the support rod 25, the pressure roller 282 pushes the corresponding support rod 25, facilitating the smooth unfolding and rewinding of the support rod 25. The rotational speed of the pressure roller can be adjusted via the transmission assembly, which will not be elaborated here. In one embodiment, the rotational speed of the pressure roller is approximately 40 rpm, and the rotational speed of the first reel is approximately 38 rpm.

[0106] For example Figure 4As shown, the first reel assembly 201 is also provided with a support block 124 corresponding to the pressure roller 282. The support rod 25 passes through the guide gap 125 between the support block 124 and the pressure roller 282 and is pressed towards the support block 124 by the pressure roller 282. Under the combined action of the pressure roller 282 and the support block 124, the support rod 25 can be pressed flatter. In one embodiment, the guide gap 125 is aligned with the guide groove 125 on the instrument panel device 121 along the second direction D2. In this way, the guide gap 125 also guides the support rod 25 along the second direction D2, so that the support rod 25 is substantially parallel to the second direction D2 after unfolding.

[0107] It should be noted that the present invention (e.g., inventive concepts, etc.) has been described in the specification of this patent document and / or illustrated in the figures according to exemplary embodiments; embodiments of the present invention are presented by way of example only and are not intended to limit the scope of the invention. The structure and / or arrangement of the elements of the inventive concept embodied in the present invention as described in the specification and / or illustrated in the figures are merely illustrative. Although exemplary embodiments of the present invention have been described in detail in this patent document, it will be readily understood by those skilled in the art that equivalents, modifications, variations, etc., of the subject matter of the exemplary and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. It should also be noted that various / other modifications, variations, substitutions, equivalents, alterations, omissions, etc., can be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concept, design, structure, apparatus, form, assembly, construction, means, function, system, process / method, steps, sequence of process / method steps, operation, operating conditions, performance, materials, composition, combination, etc.). All such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) is intended to be included within the scope of this invention without departing from its scope; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) is intended to be included within the scope of this invention. The scope of this invention is not intended to be limited to the subject matter (e.g., details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.) described in the specification and / or figures of this patent document. It should be understood that the claims of this patent document are to be properly interpreted as covering the full scope of the subject matter of this invention (e.g., including any and all such modifications, variations, embodiments, combinations, equivalents, etc.); the terminology used in this patent document is intended to provide a description of the subject matter of exemplary embodiments and not as a limitation on the scope of the invention.

[0108] It should also be noted that, according to exemplary embodiments, the present invention may include conventional techniques (e.g., techniques implemented and / or integrated in exemplary embodiments, modifications, variations, combinations, equivalents, etc.), or may include any other applicable techniques (now and / or in the future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All such techniques (e.g., techniques implemented in the manner of embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. A sunshade device for vehicle windows, characterized in that, The sunshade device includes: A first reel assembly includes a first reel extending along a first direction; A second reel assembly, arranged side-by-side with the first reel and having an arcuate shape; the second reel assembly includes a mandrel having the arcuate shape and a sleeve assembly fitted onto the mandrel; the mandrel is fixedly arranged, and the sleeve assembly is constrained into the arcuate shape by the mandrel and adapted to rotate relative to the mandrel; and A curtain assembly, including a curtain and a resilient support rod attached to the curtain; The support rod is adapted to be wound onto the first roller, and the curtain is adapted to be wound onto the sleeve assembly of the second roller assembly; the support rod is adapted to be released from the first roller and unfolded in a second direction parallel to the inclined direction of the window, and the curtain is released from the sleeve assembly of the second roller assembly and unfolded in the second direction supported by the support rod.

2. The sunshade device according to claim 1, characterized in that, The sleeve assembly includes a plurality of first sleeves arranged in series and a flexible connector connecting adjacent first sleeves; the first sleeves and the connector are adapted to rotate relative to the mandrel.

3. The sunshade device according to claim 2, characterized in that, The connector includes two connecting segments and a main body segment located between the two connecting segments; each connecting segment is fixedly connected to a corresponding first sleeve, and the main body segment is flexible.

4. The sunshade device according to claim 3, characterized in that, The main body section is constructed with weakening grooves extending in the circumferential direction.

5. The sunshade device according to claim 3, characterized in that, Each of the first sleeves has a receiving section, the shape of the inner surface of the receiving section matching the shape of the circumferential surface of the connecting section, such that the connecting section is adapted to be inserted into the corresponding receiving section.

6. The sunshade device according to claim 5, characterized in that, Each of the connecting segments and the corresponding receiving segments are fixedly connected by connecting pins passing through the connecting segments and the corresponding receiving segments.

7. The sunshade device according to claim 2, characterized in that, Each of the first sleeves is radially spaced from the mandrel.

8. The sunshade device according to claim 2, characterized in that, At least one end of the second reel assembly is provided with a first end piece; a first sleeve engages with the first end piece and is adapted to rotate relative to the first end piece; The second reel assembly also includes a first drive spring, which is located inside the first sleeve and connected between the first end piece and the adjacent connector; When the curtain is released from the second roller assembly, the sleeve assembly is rotated by the curtain and the first drive spring is tensioned; and the first drive spring is adapted to return to drive the sleeve assembly to rotate, so that the curtain is wound onto the sleeve assembly of the second roller assembly.

9. The sunshade device according to claim 1, characterized in that, The sleeve assembly includes an integral second sleeve sleeved on the mandrel, the second sleeve being constrained into the arc shape by the mandrel; The second reel assembly further includes a second drive spring disposed within the second sleeve; the two ends of the second drive spring are respectively engaged with the mandrel and the second sleeve.

10. The sunshade device according to claim 9, characterized in that, At least one end of the second reel assembly is provided with a second end piece, and a spring seat is provided inside the second sleeve; the mandrel extends through the spring seat and is fixedly connected to the second end piece, the spring seat is fixedly connected to the second sleeve and is adapted to rotate relative to the mandrel; The two ends of the second drive spring are fixedly connected to the second end piece and the spring seat, respectively.

11. The sunshade device according to claim 1, characterized in that, The sunshade device also includes a retainer, to which the second roller assembly is rotatably engaged and held in the arcuate shape by the retainer.

12. The sunshade device according to claim 11, characterized in that, The retaining member includes a first retaining member, the first retaining member comprising: First foundation; and Two clamping arms are rotatably mounted on the first base; the two clamping arms are opposite to each other and spaced apart, and define a first receiving slot extending along the first direction; the first receiving slot has a first opening; The second roller assembly is rotatably disposed within the first receiving slot, and the curtain extends from the first slot opening.

13. The sunshade device according to claim 12, characterized in that, The first retainer further includes two support arms, which are rotatably mounted on the first base and positioned between the two clamping arms; the height of the two support arms is lower than the height of the first slot and is adapted to support the second reel assembly.

14. The sunshade device according to claim 13, characterized in that, The first retainer further includes: A base, movably mounted on the first base; and A first spring is disposed between the base and the first base and is adapted to push the base toward the first receiving slot; The two support arms are in contact with the base and abut against the two clamping arms respectively; The two support arms are adapted to be rotated by the base and drive the two clamping arms to rotate, thereby reducing or increasing the lateral dimension of the first receiving slot.

15. The sunshade device according to claim 13, characterized in that, The clamping arm and / or the support arm are rotatably mounted with a first roller, the first roller being adapted to contact the curtain fabric.

16. The sunshade device according to claim 11, characterized in that, The retaining member includes a second retaining member, the second retaining member comprising: A second base defines a receiving cavity; the receiving cavity has an outlet; and A plurality of second rollers are disposed within the receiving cavity; the plurality of second rollers are stacked and define a receiving space extending along the first direction; The second roller assembly is rotatably positioned within the receiving space; the curtain contacts the plurality of second rollers and extends from the outlet of the receiving cavity.

17. The sunshade device according to claim 16, characterized in that, The plurality of second rollers include two pressing cylinders and a supporting cylinder; the two pressing cylinders are on the same layer, and the supporting cylinder is on another layer and adjacent to the two pressing cylinders, such that the supporting cylinder and the two pressing cylinders together define the receiving space; The second retainer further includes: A second spring is connected between the two pressing cylinders; and The third spring pushes the bearing cylinder toward the receiving space; The bearing cylinder and the two pressing cylinders are in close contact with the second rotating shaft assembly.

18. The sunshade device according to claim 11, characterized in that, The retaining member includes a third retaining member, which includes a first clamp and a second clamp disposed opposite to each other; the first clamp and the second clamp together define a second receiving groove extending along the first direction, the second receiving groove having a second opening; The second roller assembly is rotatably disposed within the second receiving slot, and the curtain extends from the second slot opening.

19. The sunshade device according to claim 1, characterized in that, The first reel assembly also includes a motor, which drives the first reel to rotate.

20. The sunshade device according to claim 19, characterized in that, The support rod has a moving end that is away from the first scroll; The first reel assembly further includes a pressing component disposed between the moving end of the support rod and the first reel and adapted to press at least a portion of the support rod.

21. The sunshade device according to claim 20, characterized in that, The pressing component includes: A support shaft, arranged side-by-side with the first reel and driven to rotate by the motor; and A pressure roller is mounted on the bearing shaft and corresponds to the support rod; the pressure roller is adapted to press at least a portion of the support rod.

22. The sunshade device according to claim 21, characterized in that, The pressure roller rotates in the same direction as the first reel, and the rotational speed of the pressure roller is greater than that of the first reel.

23. The sunshade device according to claim 21, characterized in that, The pressing assembly also includes a transmission assembly, through which the motor drives the bearing shaft to rotate.

24. The sunshade device according to claim 1, characterized in that, The number of support rods is multiple, and the multiple support rods extend parallel to each other.

25. The sunshade device according to claim 1, characterized in that, The curtain has a first surface and a second surface that are opposite to each other; the first surface faces the window and is coated with a light-blocking coating.

26. A sunshade system for vehicle windows, characterized in that, The sunshade system includes: Mounting brackets; and A sunshade device for a vehicle window according to any one of claims 1 to 25; the sunshade device is installed in the mounting bracket.

27. The sunshade system according to claim 26, characterized in that, The mounting bracket is implemented as an instrument panel device.

28. The sunshade system according to claim 27, characterized in that, The instrument panel is provided with a guide groove extending in the second direction, and the curtain assembly is adapted to extend through the guide groove in the second direction.

Images