Sunshade curtain mechanism, skylight assembly and vehicle

Abstract

The utility model relates to a sunshade curtain mechanism, a skylight assembly and a vehicle. The sunshade curtain mechanism can solve the problem that in the prior art, the curtain cloth winding or unwinding effect of a sunshade curtain mechanism is poor. The guide rail assembly comprises a first guide rail and a second guide rail which are arranged in parallel; the beam assembly comprises a first beam and a second beam, two ends of the first beam are respectively arranged at first ends of the first guide rail and the second guide rail, and two ends of the second beam are respectively arranged at second ends of the first guide rail and the second guide rail; the roller shutter assembly comprises curtain cloth and a reel, and the curtain cloth is wound on the reel; wherein the first cross beam comprises a supporting part, a first fixing part and a second fixing part, the first fixing part and the second fixing part are oppositely arranged at intervals, the two ends of the reel are rotatably connected to the first fixing part and the second fixing part respectively, the supporting part is provided with a profiling face and a supporting face which are connected with each other, and the curtain cloth abuts against the supporting face. The profiling face is bent towards the side away from the curtain cloth relative to the supporting face and avoids the curtain cloth.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, and in particular to a sunshade mechanism, a sunroof assembly, and a vehicle. Background Technology

[0002] In existing sunshade curtain mechanisms, one end of the crossbeam is used to fix the roller for rolling up or unrolling the curtain. To better support and tighten the curtain, a metal roller support rod is usually added at the fabric exit position of the roller to provide a support surface when the curtain exits.

[0003] However, metal roller-pressed support rods require two parts: a fabric support surface and a locking surface for attaching to the guide rail or fixed seat. The connection between these support and locking surfaces needs to be flattened to ensure a smooth transition with the guide rail or fixed seat. However, this flattening process can lead to insufficient fabric support in the flattened transition area, resulting in wrinkles and reduced fabric winding and unwinding efficiency. Utility Model Content

[0004] Therefore, it is necessary to address the problem of poor curtain roll-up or roll-down performance in traditional sunshade mechanisms by providing a sunshade mechanism, sunroof assembly, and vehicle.

[0005] According to a first aspect of this application, a sunshade mechanism is provided, the sunshade mechanism comprising:

[0006] A guide rail assembly, comprising a first guide rail and a second guide rail arranged parallel to each other;

[0007] A crossbeam assembly includes a first crossbeam and a second crossbeam. The two ends of the first crossbeam are respectively disposed at the first ends of the first guide rail and the second guide rail, and the two ends of the second crossbeam are respectively disposed at the second ends of the first guide rail and the second guide rail.

[0008] A roller blind assembly includes a curtain and a roller, wherein the curtain is rolled up on the roller;

[0009] The first crossbeam includes a support portion and a first fixed portion and a second fixed portion arranged at intervals. The two ends of the roller are rotatably connected to the first fixed portion and the second fixed portion, respectively. The support portion has a contoured surface and a support surface that are connected to each other. The curtain abuts against the support surface. The contoured surface is bent away from the support surface and avoids the curtain. The curtain can be pulled along the extension direction of the guide rail assembly to drive the roller to rotate, so that the roller can wind up or unwind the curtain.

[0010] The aforementioned sunshade curtain mechanism provides a first crossbeam with a first fixing part, a second fixing part, and a support part. The curtain fabric is directly supported on this first crossbeam, avoiding the need for a metal roller support rod outside the crossbeam, as in conventional technologies. This also avoids the flattening of the metal roller support rod and the impact of the flattened area on the support effect of the curtain fabric. Therefore, the aforementioned sunshade curtain mechanism helps improve the support and tension of the curtain fabric, thereby improving the curtain's rolling-up and unrolling efficiency.

[0011] In one embodiment, the support surface is arranged parallel to the extension surface of the guide rail assembly.

[0012] In one embodiment, one end of the contoured surface extends toward a side away from the support surface, the spool has a maximum diameter for winding the curtain, and in a height direction perpendicular to the support surface, the height of the extended end of the contoured surface is greater than or equal to the height of the lowest point of the maximum diameter.

[0013] In one embodiment, the roller and the support are spaced apart from each other, such that a winding gap for winding the curtain is formed between the roller and the support.

[0014] In one embodiment, the support portion has a reinforcing structure on the side opposite to the curtain fabric.

[0015] In one embodiment, the reinforcing structure includes reinforcing ribs with a honeycomb pattern.

[0016] In one embodiment, the width of the support surface along the extension direction of the first guide rail ranges from 20mm to 25mm.

[0017] In one embodiment, the first fixing part, the second fixing part, and the supporting part are integrally formed structural components.

[0018] In one embodiment, the wall thickness of the support portion ranges from 2mm to 4mm.

[0019] In one embodiment, the wall thickness of the support portion is 3 mm.

[0020] In one embodiment, along the length of the support portion, the contoured surface is provided with at least two mushroom-shaped fastener surfaces arranged at intervals.

[0021] In one embodiment, both the first fixing part and the second fixing part are provided with a first locking part, a second locking part and a third locking part. The first locking part is locked to the guide rail assembly, the second locking part is locked to the fixing seat, and the third locking part is locked to the glass edging or sheet metal structure.

[0022] In one embodiment, the sunshade mechanism is provided with a first contouring reinforcement and a second contouring reinforcement, the first contouring reinforcement being connected between the support and the first fixing part, and the second contouring reinforcement being connected between the support and the second fixing part.

[0023] According to a second aspect of this application, this application provides a sunroof assembly that includes the aforementioned sunshade mechanism.

[0024] According to a third aspect of this application, this application provides a vehicle that includes the sunroof assembly described above.

[0025] The aforementioned sunroof assembly and vehicle utilize a sunshade mechanism with a first crossbeam comprising a first fixing part, a second fixing part, and a support part. The curtain fabric is directly supported on this first crossbeam, avoiding the need for conventional methods that require additional metal roller support rods outside the crossbeam. This also avoids the flattening of the metal roller support rods and the impact of the flattened area on the curtain fabric's support. Consequently, the sunshade mechanism improves the support and tension of the curtain fabric, thereby enhancing the curtain's roll-up and unrolling efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a sunshade curtain mechanism in the prior art.

[0027] Figure 2 A schematic diagram of the structure of a sunshade mechanism in one embodiment provided in this application.

[0028] Figure 3 for Figure 2 The diagram shows the structure of the first crossbeam of the sunshade mechanism.

[0029] Figure 4 for Figure 2 The diagram shows a cross-sectional view of the sunshade mechanism at point AA.

[0030] Figure 5 for Figure 3 The top view of the first crossbeam is shown.

[0031] Figure 6 for Figure 3 The image shows a bottom view of the first crossbeam.

[0032] Figure 7 for Figure 3 The diagram shows an enlarged view of the first crossbeam at point B.

[0033] Explanation of icon numbers

[0034] 10. Sunshade curtain mechanism; 20. Metal roller support rod; 21. Flattened area; 110. First guide rail; 120. Second guide rail; 210. First crossbeam; 220. Second crossbeam; 310. Curtain fabric; 320. Roller shaft; 320a. Rolling-up gap; 330. Roller wheel; 410. First fixing part; 420. Second fixing part; 430. Support part; 431. Contouring surface; 431a. Mushroom-shaped fastener surface; 432. Support surface; 433. Reinforcing structure; 401. First locking part; 402. Second locking part; 403. Third locking part; 404. First contouring reinforcement part; 405. Second contouring reinforcement part. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] Combine Figure 1 As shown, existing sunshade mechanisms require the addition of a metal roller support rod 20 to support and tighten the curtain fabric. However, the flattened area 21 of the metal roller support rod 20 reduces the support and tension effect on the curtain fabric, resulting in poor curtain roll-up or roll-down performance. This application provides a sunshade mechanism 10, a sunroof assembly, and a vehicle that does not require flattening, which helps to improve the support and tension effect on the curtain fabric 310, thereby improving the curtain fabric 310 roll-up or roll-down performance.

[0042] For details, please refer to Figures 2-4One embodiment of this application provides a sunshade mechanism 10, which includes a guide rail assembly, a beam assembly, and a roller blind assembly. The guide rail assembly includes a first guide rail 110 and a second guide rail 120 arranged parallel to each other. The beam assembly includes a first beam 210 and a second beam 220, with the two ends of the first beam 210 respectively located at the first ends of the first guide rail 110 and the second guide rail 120, and the two ends of the second beam 220 respectively located at the second ends of the first guide rail 110 and the second guide rail 120. The roller blind assembly includes a curtain fabric 310 and a roller 320, with the curtain fabric 310 rolled up in the roller 320. The first crossbeam 210 includes a support portion 430 and a first fixing portion 410 and a second fixing portion 420 arranged at intervals. The two ends of the roller 320 are rotatably connected to the first fixing portion 410 and the second fixing portion 420, respectively. The support portion 430 has a contoured surface 431 and a support surface 432 connected to each other. The curtain 310 abuts against the support surface 432. The contoured surface 431 is bent away from the support surface 432 and avoids the curtain 310. The curtain 310 can be pulled along the extension direction of the guide rail assembly to drive the roller 320 to rotate, so that the roller 320 can roll up or unroll the curtain 310.

[0043] It should be noted that, depending on the pulling direction of the curtain 310 or the arrangement of the vehicle's crossbeams, the first crossbeam 210 can be implemented as a front crossbeam or a rear crossbeam, and no limitation is made in this application.

[0044] The aforementioned sunshade mechanism 10 provides a first crossbeam 210 with a first fixing part 410, a second fixing part 420, and a support part 430. The curtain fabric 310 is directly supported on the first crossbeam 210, avoiding the need for a metal roller support rod 20 outside the crossbeam as in conventional technologies. This also avoids the impact of the flattening treatment of the metal roller support rod 20 and the flattened area 21 on the support and tension of the curtain fabric 310. Therefore, the aforementioned sunshade mechanism 10 helps improve the support and tension of the curtain fabric 310, thereby improving the rolling up or unrolling effect of the curtain fabric 310.

[0045] It is worth noting that, firstly, in combination Figure 4 As shown, the exit position of the curtain 310 (the lowest point of the roll diameter of the roller 320) and the extension position of the curtain 310 along the guide rail assembly (the position abutting the support surface 432) are at different height planes.

[0046] Therefore, refer to again Figure 1In the traditional method of adding a metal roller support rod 20 to support and tighten the curtain fabric 310, one reason why the metal roller support rod 20 needs to be flattened is to accommodate the changing fabric exit angle of the curtain fabric 310. In other words, the height of the support surface of the metal roller support rod 20 needs to be higher than the height of the plane where the metal roller support rod 20 and the guide rail interlock, so that the curtain fabric 310 can exit at a preset height. Thus, in the traditional method of adding a metal roller support rod 20 to support and tighten the curtain fabric, flattening is unavoidable to maintain or raise the fabric exit height, which in turn reduces the support and tensioning effect of the flattened area 21 on the curtain fabric 310.

[0047] Continuing in conjunction with this application Figure 4 As shown, since the solution of this application has a contoured surface 431 with a bending design relative to the support surface 432, the height of the support surface 432 is staggered from the height of the contoured surface 431 after the support surface 432 is connected to the contoured surface 431. This can adapt to the changing requirements of the fabric exit angle of the curtain 310 and avoid the need for the support part 430 to be flattened. This helps to improve the support and tension effect of the support part 430 on the curtain 310, thereby improving the rolling up or unrolling effect of the curtain 310.

[0048] Furthermore, the above-mentioned solution of this application, by providing a contoured surface 431, helps to improve the structural strength of the support part 430 and the support strength of the curtain 310; in addition, the contoured surface 431 bends relative to the support surface 432 and avoids the curtain 310 on the side away from the curtain 310, so that the contoured surface 431 and the curtain 310 can be reasonably arranged while taking into account the structural strength of the support part 430, reducing the impact on the change of the curtain 310's outlet angle.

[0049] Furthermore, the above-mentioned solution of this application provides a first crossbeam 210 having a first fixing part 410, a second fixing part 420 and a support part 430, thereby improving the integration and functionality of the first crossbeam 210 and reducing the impact of the structural arrangement in the sunshade mechanism 10 on space occupation, such as the impact of adding a metal roller support rod 20 on space occupation in the conventional technology.

[0050] Furthermore, with the integrated structure and function of the first crossbeam 210, the roller 320 and the support portion 430 are spaced apart, thus forming a winding gap 320a between the roller 320 and the support portion 430 for winding up the curtain 310. This frees up space for the roller 320 to wind up the curtain 310, optimizing the structural layout. In addition, the reduced overlap between the support portion 430 and the roller 320 in the vehicle height direction helps improve headroom.

[0051] Preferably, the first fixing part 410, the second fixing part 420, and the support part 430 are integrally formed structural components. Optionally, the first fixing part 410, the second fixing part 420, and the support part 430 are integrally formed by injection molding.

[0052] Specifically, in conventional technology, the connection between the support surface and the locking surface of the metal roll-formed support rod 20 needs to be flattened due to manufacturing limitations. However, this application adopts a process of injection molding the first fixing part 410, the second fixing part 420, and the support part 430 into a single unit, which helps to reduce process requirements and allows the first crossbeam 210 to be produced according to the molding structure designed in the above scheme, thereby avoiding the need to set up an additional metal roll-formed support rod 20 outside the first crossbeam 210.

[0053] Optionally, combined Figure 4 As shown, the wall thickness d of the support portion 430 ranges from 2mm to 4mm, thus controlling the structural strength of the integrally formed support portion 430. For example, the wall thickness d can be 2mm, 3mm, or 4mm. Preferably, the wall thickness d of the support portion 430 is 3mm.

[0054] Optionally, the support surface 432 may be, but is not limited to, configured to be parallel to the extension surface of the guide rail assembly. This helps to ensure that when the curtain 310 is distributing along the extension direction of the guide rail assembly, the plane of the support surface 432 is parallel to the plane of movement of the curtain 310, thereby increasing the contact area between the support surface 432 and the curtain 310 and improving the support and tensioning effect of the support surface 432 on the curtain 310.

[0055] Preferably, combined with Figure 4 As shown, the support surface 432 can be implemented with a width D1 ranging from 20mm to 25mm along the extension direction of the first guide rail 110. This allows control over the contact area between the support surface 432 and the curtain fabric 310, thereby improving the support and tensioning effect of the support surface 432 on the curtain fabric 310. For example, the width D1 can be 20mm, 21mm, 22mm, 23mm, or 25mm.

[0056] More preferably, combined with Figure 4 As shown, the connection between the support surface 432 and the contour surface 431 adopts a guide arc transition, which can further improve the tension effect of the support part 430 on the curtain 310 at the transition position of the support part 430, and improve the smoothness of the movement of the curtain 310 during the winding and unwinding process.

[0057] Preferably, combined with Figure 4As shown, one end of the contour surface 431 extends away from the support surface 432, and the roller 320 has a maximum roll diameter for winding up the curtain 310. In the height direction h perpendicular to the support surface 432, the height of the extended end of the contour surface 431 is greater than or equal to the height of the lowest point of the maximum roll diameter. This prevents the contour surface 431 from extending too far, thus avoiding the occupation of headroom in the vehicle height direction.

[0058] Specifically, the maximum roll diameter of the curtain 310 refers to the diameter of the roller 320 plus the diameter of the curtain 310 when the curtain 310 is fully opened, that is, when the curtain 310 is fully rolled up in the roller 320.

[0059] More specifically, in combination Figure 4 As shown, in the height direction h perpendicular to the support surface 432, the height difference between one end of the contour surface 431 and the lowest point of the maximum roll diameter of the roll 320 is D2. The value of D2 is greater than or equal to 0. This ensures that the extended end of the contour surface 431 does not exceed the lowest point of the maximum roll diameter, thus ensuring the headroom of the vehicle in the height direction.

[0060] More preferably, combined with Figure 4 As shown, in the height direction h perpendicular to the support surface 432, the height of the extended end of the contour surface 431 is equal to the height of the lowest point of the maximum roll diameter. This ensures that the contour surface 431 can extend as much as possible to increase the structural strength of the support portion 430 without affecting the head space. Specifically, as... Figure 4 As shown, in this embodiment, when the value of D2 is 0, the height of the extension end of the contour surface 431 is equal to the height of the lowest point of the maximum roll diameter.

[0061] Combine Figure 3 and Figure 5 As shown, along the length of the support 430, the contoured surface 431 may, but is not limited to, be provided with at least two mushroom-shaped hook-and-loop fastener surfaces 431a arranged at intervals. The mushroom-shaped hook-and-loop fastener surfaces 431a are used to install mushroom-shaped hook-and-loop fasteners and to hook or bond with the mushroom-shaped hook-and-loop fasteners of the vehicle roof, thereby achieving the function of fixing the vehicle roof.

[0062] Specifically, in this embodiment, the mushroom-shaped hook-and-loop fastener 431a is disposed on the contoured surface 431. This makes full use of the space of the contoured surface 431, improves the integration of the mushroom-shaped hook-and-loop fastener 431a on the first crossbeam 210, and helps to avoid setting additional fixing structures outside the first crossbeam 210 for setting the mushroom-shaped hook-and-loop fastener 431a. This helps to reduce the space occupied by the first crossbeam 210 in the length direction of the vehicle body and improve the structural compactness of the sunshade mechanism 10.

[0063] Combine Figure 6As shown, optionally, the side of the support portion 430 facing away from the curtain 310 may be provided with a reinforcing structure 433, which can improve the structural strength of the support portion 430.

[0064] Preferably, the reinforcing structure 433 is configured with honeycomb-shaped reinforcing ribs, which improves the structural reinforcement effect of the reinforcing structure 433 on the support portion 430. Specifically, the inventors found through structural and stress simulation analysis of the reinforcing structure 433 that using honeycomb-shaped reinforcing ribs can improve the reinforcement effect on the support portion 430.

[0065] Combine Figure 7 As shown, optionally, both the first fixing part 410 and the second fixing part 420 are provided with a first locking part 401, a second locking part 402 and a third locking part 403. The first locking part 401 is used to lock with the guide rail assembly, the second locking part 402 is used to lock with the fixing seat, and the third locking part 403 is used to lock with the glass edging or sheet metal structure, so as to achieve stable installation of the first crossbeam 210.

[0066] Optionally, the first locking part 401, the second locking part 402, and the third locking part 403 may, but are not limited to, be implemented as locking holes, and are respectively locked to the guide rail assembly, the fixing seat, and the glass edging or sheet metal structure by bolt locking. It should be noted that the sunshade mechanism 10 also includes a fixing seat, which is disposed on the first guide rail 110 and the second guide rail 120, and is used for mounting and fixing the first fixing part 410 and the second fixing part 420.

[0067] Combine Figure 3 and Figure 7 As shown, the sunshade mechanism 10 is provided with a first contouring reinforcement 404 and a second contouring reinforcement 405. The first contouring reinforcement 404 is connected between the support part 430 and the first fixing part 410, and the second contouring reinforcement 405 is connected between the support part 430 and the second fixing part 420. This can improve the structural strength of the first fixing part 410 and the second fixing part 420, and provide stable support for the installation of the roller 320.

[0068] Optionally, the sunshade mechanism 10 also includes a cord, a slider, a pull rod, and a reel 330. The end of the curtain 310 away from the roller 320 is connected to the pull rod, and the two ends of the pull rod are respectively connected to sliders. The two ends of the pull rod can be slidably connected to the first guide rail 110 and the second guide rail 120 through the sliders, respectively. The other end of the curtain 310 can be fixed to the roller 320 by means of, but not limited to, adhesive or binding.

[0069] When the lever is pulled manually or by external force, the curtain 310 moves forward or backward, and the roller 320 rotates accordingly, releasing or retracting the curtain 310. Furthermore, a pulley 330 is located on the same side as the roller 320, with a slider connected to one end of a cord, the other end of which rotates on the pulley 330. When the curtain 310 is moved by an external force, the slider is also moved, thereby driving the cord to move, and finally the cord drives the pulley 330 to rotate. Further, a force-balancing spring structure is provided inside the roller 320. This force-balancing spring structure can adjust the winding force of the roller 320 until it reaches a state of equilibrium with the sliding friction force of the cord on the pulley, thus realizing the pull-and-stop function of the sunshade mechanism 10.

[0070] Optionally, combined Figure 2 and Figure 3 As shown, the spool 330 can be disposed on the aforementioned first contouring reinforcement portion 404 and second contouring reinforcement portion 405. Preferably, the first contouring reinforcement portion 404 and the second contouring reinforcement portion 405 have contouring shapes adapted to the outer contour of the spool 330, which helps to improve the structural compactness of the spool 330 mounted on the first contouring reinforcement portion 404 and the second contouring reinforcement portion 405.

[0071] On the other hand, this application also provides a sunroof assembly, including the aforementioned sunshade mechanism 10.

[0072] In another aspect, this application also provides a vehicle including the aforementioned sunroof assembly.

[0073] The aforementioned sunroof assembly and vehicle utilize a sunshade mechanism 10 to provide a first crossbeam 210 with a first fixing part 410, a second fixing part 420, and a support part 430. The curtain fabric 310 is directly supported on the first crossbeam 210, avoiding the need for a metal roller support rod 20 outside the crossbeam as in conventional technologies. This also avoids the flattening of the metal roller support rod 20 and the impact of the flattened area 21 on the support effect of the curtain fabric 310. Thus, the sunshade mechanism 10 helps improve the support and tension of the curtain fabric 310, thereby improving the roll-up or unrolling effect of the curtain fabric 310.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sunshade curtain mechanism, characterized in that, The sunshade mechanism includes: A guide rail assembly, comprising a first guide rail and a second guide rail arranged parallel to each other; A crossbeam assembly includes a first crossbeam and a second crossbeam. The two ends of the first crossbeam are respectively disposed at the first ends of the first guide rail and the second guide rail, and the two ends of the second crossbeam are respectively disposed at the second ends of the first guide rail and the second guide rail. A roller blind assembly includes a curtain and a roller, wherein the curtain is rolled up on the roller; The first crossbeam includes a support portion and a first fixed portion and a second fixed portion arranged at intervals. The two ends of the roller are rotatably connected to the first fixed portion and the second fixed portion, respectively. The support portion has a contoured surface and a support surface that are connected to each other. The curtain abuts against the support surface. The contoured surface is bent away from the support surface and avoids the curtain. The curtain can be pulled along the extension direction of the guide rail assembly to drive the roller to rotate, so that the roller can wind up or unwind the curtain.

2. The sunshade mechanism according to claim 1, characterized in that, The supporting surface and the extension surface of the guide rail assembly are arranged parallel to each other.

3. The sunshade mechanism according to claim 2, characterized in that, One end of the contoured surface extends away from the support surface, and the roller has a maximum diameter for winding the curtain. In the height direction perpendicular to the support surface, the height of the extended end of the contoured surface is greater than or equal to the height of the lowest point of the maximum diameter.

4. The sunshade mechanism according to claim 1, characterized in that, The roller and the support are spaced apart from each other, so that a winding gap is formed between the roller and the support for winding up the curtain.

5. The sunshade curtain mechanism according to claim 1, characterized in that, The support portion has a reinforcing structure on the side opposite to the curtain fabric.

6. The sunshade mechanism according to claim 5, characterized in that, The reinforcing structure includes reinforcing ribs with a honeycomb pattern.

7. The sunshade mechanism according to claim 2, characterized in that, The width of the support surface along the extension direction of the first guide rail ranges from 20mm to 25mm.

8. The sunshade mechanism according to any one of claims 1-7, characterized in that, The first fixing part, the second fixing part, and the supporting part are integrally formed structural components.

9. The sunshade mechanism according to claim 8, characterized in that, The wall thickness of the support portion ranges from 2mm to 4mm.

10. The sunshade mechanism according to claim 9, characterized in that, The wall thickness of the support is 3mm.

11. The sunshade mechanism according to claim 1, characterized in that, Along the length of the support portion, the contoured surface has at least two mushroom-shaped fastening surfaces arranged at intervals.

12. The sunshade mechanism according to claim 1, characterized in that, Both the first fixing part and the second fixing part are provided with a first locking part, a second locking part and a third locking part. The first locking part is locked to the guide rail assembly, the second locking part is locked to the fixing seat, and the third locking part is locked to the glass edging or sheet metal structure.

13. The sunshade mechanism according to claim 1, characterized in that, The sunshade mechanism is provided with a first contouring reinforcement and a second contouring reinforcement. The first contouring reinforcement is connected between the support and the first fixing part, and the second contouring reinforcement is connected between the support and the second fixing part.

14. A sunroof assembly, characterized in that, Includes the sunshade mechanism as described in any one of claims 1-13.

15. A vehicle, characterized in that, Includes the sunroof assembly as described in claim 14.

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