A sunshade structure that stops when pulled

Abstract

The present invention belongs to the technical field of automobile parts, and discloses a pull-and-stop sunshade structure that can improve operating comfort. It includes a sunroof frame, with guide rails formed on both sides of the sunroof frame in the width direction; a reel rotatably mounted on the sunroof frame and close to one end of the guide rail, with a rotating wheel with a flexible rope wound around both ends of the reel; a sunshade that can be retracted and wrapped around the outer wall of the reel; a pulley assembly mounted on the other end of the guide rail and an operating panel slidably mounted in the guide rail, the free end of the flexible rope passing through the pulley assembly is connected to one end of the operating panel, and the other end of the operating panel is connected to the sunshade. The pulley assembly includes a pulley base elastically plugged into the guide rail and a pulley block connected to the pulley base. The pulley structure that stops when pulled also includes a damping block for abutting the pulley block. When the sunshade is not in operation, the pulley block abuts against the damping block. When the sunshade is in operation, the operating panel pulls the flexible rope to drive the pulley block to separate from the damping block.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to a pull-and-stop sunshade structure. Background Art

[0002] Car sunroofs are usually equipped with sunshades to block sunlight. Most sunshades are usually pull-and-stop sunshades, which are used to open and close the sunshades at any desired position.

[0003] The main structure of an existing pull-and-stop sunshade includes a sunshade assembly, a reel, a sunroof frame, a pulley assembly, an operating panel, and a damping system. To open the sunshade, the operating panel pulls the flexible cable, causing a rotating wheel at the end of the reel to release the cable, which then drives the roller to reel in the sunshade. To close the sunshade, the operating panel pulls the sunshade assembly, causing the reel to rotate, releasing the curtain fabric and driving the rotating wheel at the end of the reel to reel in the flexible cable.

[0004] However, when the vehicle experiences large acceleration, there is a potential failure mode in which the sunshade assembly itself changes position due to inertia. The existing technology usually avoids the occurrence of this potential failure mode by increasing the damping of the damping system, but this method also greatly increases the operating force of the operator to operate the operating panel, which is not conducive to the comfort of sunshade operation. Summary of the Invention

[0005] In order to avoid the potential failure mode of the sunshade curtain mentioned above and improve the operating comfort of the sunshade curtain, the present invention proposes a sunshade curtain structure that stops as soon as it is pulled.

[0006] According to the present invention, the pull-and-stop sunshade structure includes: a skylight frame, with guide rails formed on both sides of the skylight frame in the width direction; a drum rotatably mounted between the two sides of the skylight frame in the width direction and close to one end of the guide rail, with wheels provided at both ends of the drum, and a flexible rope wound on the wheel; a sunshade that can be retracted and wrapped around the outer wall of the drum; a pulley assembly mounted on the other end of the guide rail; and an operating panel slidably mounted in the guide rail, the free end of the flexible rope being connected to one end of the operating panel after passing through the pulley assembly, and the other end of the operating panel being connected to the sunshade, wherein the pulley assembly includes a pulley base elastically inserted into the guide rail and a pulley group connected to the pulley base, the pulley structure that stops when pulled also includes a damping block for abutting the pulley group, the pulley group has a static state when the sunshade is not operated and a moving state when the sunshade is operated, in the static state, the pulley group abuts against the damping block; in the moving state, the operating panel pulls the flexible rope to drive the pulley group to separate from the damping block.

[0007] Furthermore, the pulley base includes a base body inserted into the guide rail and an elastic member elastically compressed and abutted between the guide rail and the base body, and the base body is connected to the pulley assembly.

[0008] Furthermore, a gap is formed between the bottom wall of the guide rail opposite to the opening and the skylight frame, so that the base body can be inserted into the bottom wall.

[0009] Furthermore, a plug-in slot is formed at the plug-in end of the base body, and a positioning component for installing the elastic component is formed in the plug-in slot.

[0010] Furthermore, the elastic member is a spring, the positioning component is configured as a mounting shaft, and the end of the spring is sleeved on the mounting shaft; or the positioning component is configured as a mounting hole, and the spring is coaxially arranged in the mounting hole.

[0011] Furthermore, a stop block for preventing the operating panel from falling off the guide rail is formed at one end of the guide rail close to the pulley base, and the damping block is connected to the stop block.

[0012] Furthermore, the damping block is connected to the skylight frame near one end of the guide rail close to the pulley base.

[0013] Furthermore, the outer edge of the pulley block is formed into a circle, and the shape of the surface of the damping block that contacts the pulley block is configured to fit the circle.

[0014] Furthermore, the outer edge of the pulley block is formed into a tooth shape, and the shape of the surface of the damping block that contacts the pulley block is configured to mesh with the tooth shape.

[0015] Furthermore, damping devices are respectively provided on both sides of the skylight frame in the width direction, the reel is fixed between the two damping devices, and the rotating wheel is located between the reel and the damping device.

[0016] The pull-and-stop sunshade structure of the present invention elastically connects the pulley base to the guide rail, subjecting the pulley block to a continuous elastic push-out force. A damping block is added to the outer end of the pulley block to increase damping when the sunshade is not in operation. Thus, when the sunshade is in a certain position, the increased resistance effectively prevents the sunshade from shifting due to inertia, effectively preventing the occurrence of a potential failure mode of the sunshade. When the sunshade is operated, the pulley block, subjected to the tension of the flexible cable, overcomes the elastic push-out force, separating the pulley block from the damping block. At this point, the damping is reduced. Consequently, this lower damping reduces the operator's operating force, thereby improving the operating comfort of the sunshade. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2. It is a structural schematic diagram of a pull-and-stop sunshade structure according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic structural diagram of the upper area of ​​the pull-and-stop sunshade structure shown;

[0019] Figure 3 for Figure 2 A schematic structural diagram of a first embodiment of a pulley assembly is shown;

[0020] Figure 4 for Figure 3 A perspective view of the structure of the pulley assembly shown;

[0021] Figure 5 for Figure 3 The working principle diagram of the pulley assembly shown;

[0022] Figure 6 for Figure 3 A schematic structural diagram of a first embodiment of a pulley base is shown;

[0023] Figure 7 for Figure 3 A schematic structural diagram of a second embodiment of a pulley base is shown;

[0024] Figure 8 for Figure 2 FIG. 1 is a schematic structural diagram of a second embodiment of a pulley assembly shown in FIG. DETAILED DESCRIPTION

[0025] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0026] Figure 1 and Figure 2 The structure of a pull-and-stop sunshade structure 100 according to an embodiment of the present invention is shown, which includes: a skylight frame 1, with guide rails 2 formed on both sides of the skylight frame 1 in the width direction; a reel 3 rotatably mounted between the two sides of the skylight frame 1 in the width direction and close to one end of the guide rail 2, with a rotating wheel 4 provided at both ends of the reel 3, and a flexible cable 8 (such as Figure 2 As shown); a sunshade 5 retractably wound around the outer wall of the drum 3; a pulley assembly 6 mounted on the other end of the guide rail 2; and an operating panel 7 slidably mounted within the guide rail 2. The free end of a flexible cable 8 is connected to one end of the operating panel 7 after passing through the pulley assembly 6. The other end of the operating panel 7 is connected to the sunshade 5. Figure 3 As shown, the pulley assembly 6 includes a pulley base 61 elastically inserted on the guide rail 2 and a pulley group 62 connected to the pulley base 61. The pull-and-stop sunshade structure 100 also includes a damping block 63 for abutting the pulley group 62. The pulley group 62 has a static state when the sunshade 5 is not operated and a moving state when the sunshade 5 is operated. In the static state, the pulley group 62 abuts against the damping block 63; in the moving state, the operating panel 7 pulls the soft rope 8 to drive the pulley group 62 to separate from the damping block 63.

[0027] In the pull-and-stop sunshade structure 100 of the embodiment of the present invention, Figure 3 and Figure 4 As shown, the pulley base 61 is elastically plugged into the guide rail 2, and the pulley block 62 is connected to the pulley base 61. By arranging a damping block 63 on the outside of the pulley block 62, when the sunshade 5 is in a non-operating state, that is, when the sunshade 5 is in a stationary state, the pulley base 61 is elastically acted upon, and the pulley block 62 connected thereto is pushed to abut against the damping block 63 to generate greater damping. When the sunshade 5 is operated, that is, when the sunshade 5 is in motion, whether in the opening or closing process of the sunshade 5, the pulley block 62, under the action of the flexible cable 8, only needs to overcome the elastic action of the pulley base 61 on the pulley block 62 to separate the pulley block 62 from the damping block 63. This arrangement helps to reduce damping, so that the sunshade 5 can be opened or closed with less operating force.

[0028] Combine Figure 5 As shown, the pull-and-stop sunshade structure 100 of the embodiment of the present invention elastically plugs the pulley base 61 onto the guide rail 2, so that the pulley block 62 is continuously subjected to the elastic push-out force F2. A damping block 63 is added to the outer end of the pulley block 62 to increase the damping of the sunshade 5 in the non-operating state. As a result, when the sunshade 5 is in a certain position, the increased resistance can effectively prevent the sunshade 5 from moving its own position due to inertia, that is, it can effectively prevent the occurrence of potential failure modes of the sunshade 5. When the sunshade 5 is operated, the pulley block 62 is subjected to the pulling force F1 of the flexible cable 8, which overcomes the elastic push-out force F2, causing the pulley block 62 to separate from the damping block 63. At this time, the damping is reduced. Therefore, the lower damping can reduce the operating force of the operator, thereby improving the operating comfort of the sunshade 5.

[0029] In such Figure 3 He Ru Figure 4 In the preferred embodiment shown, the pulley base 61 may include a base body inserted into the guide rail 2 and an elastic member 64 elastically compressed and abutted between the guide rail 2 and the base body. The base body is connected to the pulley assembly 62. This setting is used to realize the elastic insertion of the pulley assembly 6 relative to the guide rail 2.

[0030] Combine Figure 2 and Figure 3 As shown, a gap is formed between the bottom wall 21 of the guide rail 2 opposite to the opening and the skylight frame 1, so that the base body can be inserted into the bottom wall 21. The setting of this gap not only provides space for the base body to be inserted into the bottom wall 21 of the guide rail 2, but also provides space for the flexible cable 8 to be routed.

[0031] like Figure 6 and Figure 7As shown, the plug-in end of the base body of the pulley base 61 may be formed with a plug-in slot 611, and a positioning component for installing the elastic member 64 is formed in the plug-in slot 611. Figure 3 As shown, the elastic member 64 can be a spring, and the positioning member can be Figure 6 The mounting shaft 612 shown may also be Figure 7 The mounting hole 613 shown in FIG. 1 is a perspective view of a plurality of springs, wherein the end of the spring is sleeved on the mounting shaft 612 or coaxially arranged in the mounting hole 613. Further preferably, the mounting hole can be as follows: Figure 7 The channel shape shown can also be a countersunk hole shape formed on the bottom wall of the plug-in slot 611.

[0032] Also preferably, the elastic member 64 may also be a spring sheet, and the shape of the spring sheet is preferably Z-shaped, and the Z-shaped spring sheet elastically abuts between the bottom wall of the insertion slot 611 and the side surface of the bottom wall 21 of the guide rail 2 .

[0033] like Figure 4 As shown, a stop block 22 is formed at one end of the guide rail 2 near the pulley base 61 to prevent the operating panel 7 from falling off the guide rail 2. In a preferred embodiment, a damping block 63 can be connected to the stop block 22. In this embodiment, the damping block 63 can be a separately manufactured component or an integral component formed with the stop block 22.

[0034] In another preferred embodiment, the damping block 63 may be connected to the skylight frame 1 near one end of the guide rail 2 close to the pulley base 61 .

[0035] In such Figure 3 He Ru Figure 4 In the embodiment shown, the outer edge of the pulley block 62 can be formed into a circle, and the shape of the side of the damping block 63 that contacts the pulley block 62 is configured to fit the circle. This fit can make the pulley block 62 and the damping block 63 more stable when in contact.

[0036] In such Figure 8 In the embodiment shown, the outer edge of the pulley block 62 may also be formed into a tooth shape 631, and the shape of the surface of the damping block 63 that contacts the pulley block 62 is configured to engage with the tooth shape 631. Figure 3 He Ru Figure 4 The embodiment shown is configured to ensure that the elastic ejection force F2 can be overcome as small as possible when operating the sunshade 5, so as to further reduce the additional operating force caused by overcoming the elastic ejection force F2 when operating the sunshade 5, and obtain as much damping as possible in the non-operating state.

[0037] Preferably, the tooth shape 631 may be a triangular tooth shape.

[0038] According to the present invention, damping devices are provided on both sides of the skylight frame 1 in the width direction, the reel 3 is fixed between the two damping devices, and the rotating wheel is located between the reel and the damping device. Figure 1 and Figure 2 As shown, during the opening process of the sunshade 5, the operating panel 7 pulls the soft rope 8, causing the rotary wheel 4 at the end of the reel 3 to release the soft rope 8, and the rotary wheel 4 overcomes the resistance of the damping device and drives the reel 3 to reel in the sunshade 5; during the closing process of the sunshade 5, the operating panel 7 pulls the sunshade 5, and the sunshade 5 drives the reel 3 to rotate, thereby driving the rotary wheel 4 at its end to overcome the resistance of the damping device and reel in the soft rope 8, thereby realizing the pull-and-stop function of the sunshade 5. Based on the setting of the damping device, the present invention improves the operating comfort of the sunshade 5 while avoiding the potential failure mode of the sunshade 5 mentioned above by elastically plugging the pulley base 61 onto the guide rail 2 and adding a damping block 63 to the outer end of the pulley group 62.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A sunshade structure that stops when pulled, comprising: A skylight frame, wherein guide rails are formed on both sides of the skylight frame in a width direction; A reel is rotatably mounted between two sides of the skylight frame in the width direction and close to one end of the guide rail, wherein both ends of the reel are provided with rotating wheels, and a flexible cable is wound around the rotating wheels; a sunshade curtain retractably rolled up on the outer side wall of the drum; a pulley assembly mounted on the other end of the guide rail; and An operating plate is slidably mounted in the guide rail, wherein the free end of the flexible cable is connected to one end of the operating plate after passing through the pulley assembly, and the other end of the operating plate is connected to the sunshade. Among them, the pulley assembly includes a pulley base elastically inserted on the guide rail, a pulley group connected to the pulley base, and the pull-and-stop sunshade structure also includes a damping block for abutting the pulley group. The pulley group has a static state when the sunshade is not operated and a moving state when the sunshade is operated. In the static state, the pulley group abuts against the damping block; in the moving state, the operating panel pulls the flexible cable to drive the pulley group to separate from the damping block.

2. The pull-and-stop sunshade structure according to claim 1, characterized in that: The pulley base includes a base body inserted on the guide rail and an elastic member elastically compressed and abutted between the guide rail and the base body. The base body is connected to the pulley assembly.

3. The pull-and-stop sunshade structure according to claim 2, characterized in that: A gap is formed between the bottom wall of the guide rail opposite to the opening and the skylight frame, so that the base body can be inserted into the bottom wall.

4. The pull-and-stop sunshade structure according to claim 2 or 3, characterized in that: The plug-in end of the base body is formed with a plug-in slot, and a positioning component for installing the elastic component is formed in the plug-in slot.

5. The pull-and-stop sunshade structure according to claim 4, characterized in that: The elastic member is a spring, the positioning component is configured as a mounting shaft, and the end of the spring is sleeved on the mounting shaft; or the positioning component is configured as a mounting hole, and the spring is coaxially arranged in the mounting hole.

6. The pull-and-stop sunshade structure according to any one of claims 1 to 3, characterized in that: A stop block for preventing the operating plate from falling off the guide rail is formed at one end of the guide rail close to the pulley base, and the damping block is connected to the stop block.

7. The pull-and-stop sunshade structure according to any one of claims 1 to 3, characterized in that: The damping block is connected to the skylight frame near one end of the guide rail close to the pulley base.

8. The pull-and-stop sunshade structure according to any one of claims 1 to 3, characterized in that: The outer edge of the pulley block is formed into a circle, and the shape of the surface of the damping block that contacts the pulley block is configured to fit the circle.

9. The pull-and-stop sunshade structure according to any one of claims 1 to 3, characterized in that: The outer edge of the pulley block is formed into a tooth shape, and the shape of the surface of the damping block that contacts the pulley block is configured to mesh with the tooth shape.

10. The pull-and-stop sunshade structure according to any one of claims 1 to 3, characterized in that: Damping devices are respectively provided on both sides of the skylight frame in the width direction, the reel is fixed between the two damping devices, and the rotating wheel is located between the reel and the damping devices.

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