Sunshade curtain device for a vehicle

Abstract

The application discloses a sunshade curtain device for a vehicle. The sunshade curtain device comprises a reel, a curtain cloth, a rope wheel, a pull rope and a fixing block. The curtain cloth is carried on the reel and has a moving part. The rope wheel is installed on the reel. The circumferential wall of the rope wheel comprises an outer wall and an inner wall. The inner wall is provided with a mounting groove. The circumferential wall is provided with a through channel extending from the outer wall to the mounting groove. The pull rope is connected between the moving part of the curtain cloth and the rope wheel. The pull rope comprises a main body section and a fixing section. The fixing block is fixedly connected with the fixing section of the pull rope and can be fixedly installed in the mounting groove to fix the pull rope on the rope wheel. The main body section of the pull rope extends through the through channel to the outside of the rope wheel. In this way, the pull rope is fixedly installed on the rope wheel through the fixing block, and the sunshade curtain device is prevented from malfunctioning due to the pull rope being detached from the rope wheel.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to sunshade devices for vehicles. Background Technology

[0002] Some vehicles are equipped with sunroofs, or even panoramic sunroofs, to increase the amount of light entering the vehicle. However, in environments with strong sunlight, it is necessary to cover the sunroof to reduce the amount of light entering the vehicle.

[0003] In some vehicles, a sunshade system is installed on the roof panel. The sunshade system includes a roller, a curtain, pulleys at both ends of the roller, and a pull cord. The pull cord connects the pulleys and the curtain. When using the sunshade system, the roller rotates, and the pull cord winds onto or releases from the pulleys to release the curtain from the roller and cover the sunroof, or to rewind the curtain back onto the roller. However, in some cases, the pull cord may detach from the pulleys, causing the sunshade system to malfunction. Utility Model Content

[0004] To address the aforementioned technical problems, this application proposes a sunshade device for vehicles. The sunshade device includes a roller; a curtain fabric supported on the roller and having a movable portion away from the roller; a pulley mounted on the roller; the pulley's circumferential wall includes an outer wall and an inner wall; a mounting groove is formed on the inner wall; a through-channel is formed on the circumferential wall extending from the outer wall to the mounting groove; a pull cord connecting the movable portion of the curtain fabric and the pulley; the pull cord includes a main body section and a fixed section connected to the main body section; and a fixing block fixedly connected to the fixed section of the pull cord; the fixing block is adapted to be fixedly installed within the mounting groove so that the pull cord is fixedly installed on the pulley; the main body section of the pull cord is adapted to extend from the mounting groove through the through-channel to the outside of the pulley.

[0005] In one embodiment, the mounting groove is constructed in a conical shape, with the smaller end of the mounting groove facing the outer wall and the larger end away from the outer wall.

[0006] In one embodiment, the end of the sidewall of the mounting groove is further provided with a guide ramp that slopes outward toward the mounting groove.

[0007] In one embodiment, the fixing block is cuboid or conical in shape that matches the mounting groove.

[0008] In one embodiment, the mating surface of the fixing block that contacts the sidewall of the mounting groove is constructed as a rough surface.

[0009] In one embodiment, an adhesive is applied between the fixing block and the mounting groove.

[0010] In one embodiment, the fixing block is provided with an assembly hole, and the fixing section of the pull rope is fixedly installed in the assembly hole.

[0011] In one embodiment, a rope groove is formed on the outer wall of the rope pulley, and at least a portion of the main body section of the rope is adapted to be wound in the rope groove; the through channel is formed as a through hole extending from the rope groove to the mounting groove.

[0012] In one embodiment, a rope groove is formed on the outer wall of the rope pulley, and at least a portion of the main body section of the pull rope is adapted to be wound in the rope groove; the through channel is formed as a cut on the end face of the rope pulley, the cut extending from the rope groove to the mounting groove.

[0013] In one embodiment, the sunshade device further includes a drive member connected to one end of a roller; wherein the drive member is adapted to drive the roller to rotate, and the pulley rotates synchronously with the roller to cause the curtain to be gathered onto the roller and the pull cord to be released from the pulley, or to cause the curtain to be released from the roller and unfolded, and the pull cord to be gathered onto the pulley.

[0014] The beneficial effects of this application are as follows: When using the sunshade device for vehicles, the fixed section of the pull cord will not detach from the fixing block when the pull cord is tensioned, and the fixing block will not disengage from the mounting groove, thus preventing the pull cord from falling off the pulley. Similarly, when the pull cord is slack, the fixing block will not disengage from the mounting groove, preventing the pull cord from falling off the pulley. This avoids malfunctions in the sunshade device caused by the pull cord detaching from the pulley. Attached Figure Description

[0015] 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.

[0016] Figure 1 The vehicle is shown schematically according to one embodiment of itself.

[0017] Figure 2 A sunshade device for a vehicle according to one embodiment of this application is schematically shown.

[0018] Figure 3 The schematic diagram of the sunshade device is shown.

[0019] Figure 4 The first rope reel is shown schematically.

[0020] Figure 5 The cross-section of the first pulley is shown schematically.

[0021] Figure 6 The diagram schematically shows the first pull rope assembled with the first pulley, and the first pulley mounted on the reel.

[0022] List of reference numerals 1: Vehicle; 11: Sunroof opening; 12: Vehicle roof panel 2: Sunshade device for vehicles; 201: Drive component 3: Reel; 31a: First pulley; 31b: Second pulley; 32a: First pull rope; 32b: Second pull rope; 33a: First pulley; 33b: Second pulley; 310: Assembly space; 311a: Large end; 311b: Small end; 312: Side wall of mounting slot; 313: Circumferential wall; 314: Inner wall; 315: Outer wall; 316: Rope groove; 317: Mounting slot; 318: Through channel; 319: Guide ramp 321: Main body section; 322: Fixed section 4: Fixing block: 411: Mating surface; 412: Assembly hole 51: First guide rail; 52: Second guide rail; 6: Curtain fabric; 601a: First longitudinal edge; 601b: Second longitudinal edge; 602a: Fixing part; 602b: Moving part; D1: First direction; D2: Second direction Detailed Implementation

[0023] 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 with reference to specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] Figure 1 A vehicle 1 according to one embodiment of this application is schematically shown. Figure 1 As shown, vehicle 1 includes a vehicle roof panel 12. A sunroof opening 11 is provided on the vehicle roof panel 12, and a sunroof glass (not shown) is installed at the sunroof opening 11. To cover the sunroof glass when needed, a sunshade device 2 (hereinafter referred to as sunshade device 2) for the vehicle is also installed at the sunroof opening 11. In some vehicles, the vehicle roof panel may also be made of glass (i.e., the vehicle roof panel is a glass sunroof). In this case, the sunshade device 2 is installed on the glass sunroof.

[0025] The following describes the sunshade device 2.

[0026] Reference Figure 2 and Figure 3The sunshade device 2 mainly includes two roughly parallel guide rails (i.e., the first guide rail 51 and the second guide rail 52), a drive unit 201, a roller 3, two rope wheels (i.e., the first rope wheel 31a and the second rope wheel 31b) installed at the two ends of the roller 3, two pull ropes (i.e., the first pull rope 32a and the second pull rope 32b) and a curtain 6.

[0027] The curtain fabric 6 is generally rectangular and has two longitudinal edges (i.e., a first longitudinal edge 601a and a second longitudinal edge 601b) extending along a first direction D1 (the first direction D1 is generally parallel to the length direction of the curtain fabric 6) and a fixed portion 602a and a movable portion 602b extending along a second direction D2 (the second direction D2 is generally parallel to the width direction of the curtain fabric 6). The fixed portion 602a and the movable portion 602b are opposite each other along the first direction D1. A pull rod 61 is provided at the movable portion 602b of the curtain fabric 6.

[0028] The first guide rail 51 and the second guide rail 52 extend generally along the first direction D1 and are located on both sides of the curtain 6 along the second direction D2. For example, the first guide rail 51 is adjacent to the first longitudinal edge 601a of the curtain 6, and the second guide rail 52 is adjacent to the second longitudinal edge 601b of the curtain 6. In this way, the curtain 6 can reciprocate along the first direction D1 under the guidance of the two guide rails.

[0029] The spool 3 is positioned between the first guide rail 51 and the second guide rail 52. For example, the spool 3 extends generally along the second direction D2. In one embodiment, the spool 3 is a hollow tube, which helps to reduce the weight of the spool 3.

[0030] The curtain fabric 6 is supported on the roller 3, and the fixing part 602a of the curtain fabric 6 is fixedly connected to the roller 3 to prevent the curtain fabric 6 from falling off the roller 3. In one embodiment, the fixing part of the curtain fabric is bonded to the roller 3 with an adhesive. Of course, depending on the actual situation, the fixing part of the curtain fabric can also be fixedly connected to the roller 3 in other ways, which will not be elaborated here. The moving part 602b of the curtain fabric 6 is away from the roller 3.

[0031] The drive unit 201 is connected to one end of the reel 3 to drive the reel 3 to rotate, and the first sheave 31a and the second sheave 31b rotate synchronously with the reel 3. In one embodiment, the drive unit 201 is a motor.

[0032] The sunshade device 2 also includes two pulleys (i.e., a first pulley 33a and a second pulley 33b). The two pulleys are arranged on both sides of the curtain 6 along a second direction D2. For example, the two pulleys are respectively arranged on two guide rails. The first pull cord 32a is connected to the first end of the pull rod 61 and, after being redirected by the first pulley 33a, is connected to the first rope wheel 31a (i.e., the first pull cord 32a is connected between the moving part 602b of the curtain 6 and the first rope wheel 31a). The second pull cord 32b is connected to the second end of the pull rod 61 and, after being redirected by the second pulley 33b, is connected to the second rope wheel 32b (i.e., the second pull cord 32b is connected between the moving part 602b of the curtain 6 and the second rope wheel 31b).

[0033] When the drive unit 201 drives the roller 3 to rotate in the first rotation direction, the first pull rope 32a and the second pull rope 32b move backward in the first direction D1 (i.e., in the direction towards the roller 3 in the first direction D1) and are respectively wound onto the first rope wheel 31a and the second rope wheel 31b. The moving part 602b of the curtain 6 and the pull rod 61 are pulled by the two pull ropes and move forward in the first direction D1 (i.e., away from the roller 3 in the first direction D1) away from the roller 3, so that the curtain 6 is released from the roller 3 and unfolded to cover the sunroof glass.

[0034] When the drive unit 201 drives the roller 3 to rotate in the second rotation direction, the curtain 6 is gradually drawn back onto the roller 3 (the moving part 602b of the curtain 6 and the pull rod 61 move backward toward the roller 3 along the first direction D1) to reveal the window glass. The first pull rope 32a and the second pull rope 32b are released from the first pulley 31a and the second pulley 31b respectively and move forward along the first direction D1.

[0035] The first rope pulley 31a and the second rope pulley 31b are identical. For simplicity, the technical solution of this application will be described below using the first rope pulley 31a and the first pull rope 32a as examples.

[0036] Reference Figure 4 and Figure 5 The first pulley 31a is conical, and its internal structure includes an assembly space 310. Thus, the first pulley 31a is mounted onto the reel 3 via the assembly space 310 (e.g., ...). Figure 6 As shown in the diagram, the large end 311a of the first sheave 31a faces the spool 3, while the small end 311b is away from the spool 3. Depending on the actual situation, the first sheave can also be cylindrical, which will not be elaborated here.

[0037] The circumferential wall 313 of the first pulley 31a includes an inner wall 314 facing the assembly space 310 and an outer wall 315 opposite to the inner wall 314. A helical rope groove 316 is provided on the outer wall 315, so that the first pull rope 32a can be wound into the rope groove 316 (i.e., wound onto the first pulley 31a) or released from the rope groove 316 (i.e., released from the first pulley 31a).

[0038] A mounting groove 317 is constructed on the inner wall 314. For example, the mounting groove 317 extends generally toward the outer wall 315 in the radial direction of the first pulley 31a.

[0039] The circumferential wall 313 is also provided with a through channel 318 extending from the outer wall 315 to the mounting groove 317. For example, the through channel 318 is a cut formed on the end face of the large end 311a of the first rope sheave 31a, generally extending in the radial direction of the first rope sheave 31a. It should be understood that, in some cases, the through channel may also be constructed as a through hole extending from the rope groove to the mounting groove.

[0040] The first pull rope 32a includes a main section 321 and a fixed section 322 connected to the main section 321.

[0041] like Figure 6 As shown, the sunshade device 2 also includes a fixing block 4. The fixing block 4 is fixedly connected to the fixing section 322 of the first pull rope 32a. For example, the fixing block 4 is provided with an assembly hole 412, the fixing section 322 of the first pull rope 32a is inserted into the assembly hole 412, and then fixedly connected together (e.g., riveted together).

[0042] When the first pull rope 32a is installed onto the first pulley 31a, the fixing block 4 is pre-assembled with the first pull rope 32a. Then, the main body section 321 of the first pulley 31a is positioned within the cut (i.e., the through channel 318). Next, the fixing block 4 is inserted into the mounting groove 317 from one side of the inner wall 314 (i.e., within the assembly space 310) generally along the radial direction of the first pulley 31a, and the fixing block 4 is tightly engaged with the mounting groove 317. In this way, the first pull rope 32a is fixedly installed on the first pulley 31a by the fixing block 4, and the main body section 321 of the first pull rope 32a extends from the mounting groove 317 through the cut to the outside of the first pulley 31a (e.g., wound within the rope groove 316).

[0043] When using the sunshade device 2, when the first pull cord 32a is tensioned, the fixed section 322 of the first pull cord 32a will not detach from the fixed block 4, and the fixed block 4 will not disengage from the mounting groove 317 (or the first rope pulley 31a), thus preventing the first pull cord 32a from separating from the first rope pulley 31a. When the first rope pulley 31a is slack, the fixed block 4 will not disengage from the mounting groove 317, preventing the first pull cord 32a from separating from the first rope pulley 31a. This avoids malfunctions in the sunshade device 2 caused by the pull cord detaching from the rope pulley.

[0044] It should be noted that when the through-channel 318 is constructed as a through hole extending from the rope groove to the mounting groove, when installing the first pull rope 32a onto the first pulley 31a, the fixing block 4 is not pre-assembled with the first pull rope 32a. Instead, the fixing section 322 of the first pull rope 32a is first extended from one side of the outer wall 315 through the through hole (i.e., the through-channel 318) into the mounting groove 317. Then, the fixing block 4 is fixedly connected to the fixing section 322 of the first pull rope 32a. Next, the fixing block 4 is inserted into the mounting groove 317.

[0045] In one embodiment, the mounting groove 317 is tapered, with its smaller end facing the outer wall 315 and its larger end facing the assembly space 310 (in fact, the larger end is on the inner wall 314). In other words, the cross-sectional dimensions of the mounting groove 317 gradually decrease from the inner wall 314 to the outer wall 315. The fixing block 4 is cuboid or tapered to match the mounting groove 317. This allows the fixing block 4 to be easily inserted into the mounting groove 317. Moreover, the deeper the fixing block 4 is inserted into the mounting groove 317, the tighter the engagement between the fixing block 4 and the mounting groove 317. In addition, after the fixing block 4 is inserted into the mounting groove 317, the fixing block 4 and / or the mounting groove 317 will be slightly deformed by mutual compression, making the engagement between the fixing block 4 and the mounting groove 317 more stable.

[0046] like Figure 5 and Figure 6 As shown, the end of the side wall of the mounting groove 317 facing the assembly space 310 is also provided with a guide slope 319, and the guide slope 319 is inclined towards the outside of the mounting groove 317. In this way, the mounting groove 317 forms a flared shape, which further facilitates the insertion of the fixing block 4 into the mounting groove 317.

[0047] The mating surface 411 of the fixing block 4 that contacts the side wall 312 of the mounting groove 317 (e.g., the circumferential surface of the fixing block 4) can be constructed as a rough surface. For example, multiple ribs (not shown in the figure) are provided on the mating surface 411 of the fixing block 4, which helps to increase the friction between the mating surface 411 of the fixing block 4 and the side wall 312 of the mounting groove 317, so that the fixing block 4 is stably installed in the mounting groove 317 by friction. In this case, the fixing block 4 can be disassembled and assembled on the first rope pulley 31a multiple times to facilitate maintenance of the first rope pulley 31a and / or the first pull rope 32a.

[0048] In one embodiment, an adhesive may be applied between the fixing block 4 and the mounting groove 317 to make the fixing block 4 more stable in the mounting groove 317.

[0049] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A sunshade device for a vehicle, characterized in that, The sunshade device includes: reel; A curtain fabric, carried on the roller and having a movable portion away from the roller; A rope pulley is mounted on the reel; the circumferential wall of the rope pulley includes an outer wall and an inner wall; a mounting groove is formed on the inner wall; a through channel is formed on the circumferential wall extending from the outer wall to the mounting groove; A pull cord is connected between the moving part of the curtain and the pulley; the pull cord includes a main section and a fixed section connected to the main section; and A fixing block is fixedly connected to the fixing section of the pull rope; the fixing block is adapted to be fixedly installed in the mounting groove so that the pull rope is fixedly installed on the rope wheel; the main body section of the pull rope is adapted to extend from the mounting groove through the through-channel to reach the outside of the rope wheel.

2. The sunshade device according to claim 1, characterized in that, The mounting groove is tapered, with the smaller end facing the outer wall and the larger end away from the outer wall.

3. The sunshade device according to claim 2, characterized in that, The end of the sidewall of the mounting groove is also provided with a guide slope that is inclined toward the outside of the mounting groove.

4. The sunshade device according to claim 1, characterized in that, The fixing block is rectangular or conical in shape and matches the mounting groove.

5. The sunshade device according to claim 1 or 4, characterized in that, The mating surface of the fixing block that contacts the side wall of the mounting groove is constructed to be a rough surface.

6. The sunshade device according to claim 1, characterized in that, An adhesive is applied between the fixing block and the mounting groove.

7. The sunshade device according to claim 1 or 4, characterized in that, The fixing block is provided with an assembly hole, and the fixing section of the pull rope is fixedly installed in the assembly hole.

8. The sunshade device according to claim 1, characterized in that, The outer wall of the sheave is provided with a rope groove, and at least a portion of the main body section of the pull rope is adapted to be wound in the rope groove; The through channel is constructed as a through hole extending from the rope groove to the mounting groove.

9. The sunshade device according to claim 1, characterized in that, The outer wall of the sheave is provided with a rope groove, and at least a portion of the main body section of the pull rope is adapted to be wound in the rope groove; The through channel is constructed as a cut on the end face of the rope pulley, the cut extending from the rope groove to the mounting groove.

10. The sunshade device according to claim 1, characterized in that, The sunshade device also includes a drive unit, which is connected to one end of the roller; The driving component is adapted to drive the roller to rotate, and the rope pulley rotates synchronously with the roller to gather the curtain onto the roller and release the pull rope from the rope pulley, or to release the curtain from the roller and unfold it, and then gather the pull rope onto the rope pulley.

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