A sunshade device, vehicle and method of operation

Abstract

A sunshade device, vehicle, and operating method are disclosed, belonging to the field of sunshade technology. The device includes a curtain fabric, a pivot assembly, and a locking assembly. The locking assembly includes a connecting bracket. Limiting buckles are fixedly connected to both ends of the connecting bracket and slidably positioned within corresponding guide rails. The limiting buckles are elastic elements. A handle is connected to the lower surface of the center position of the connecting bracket. A locking portion is fixedly provided on the lower surface of the limiting buckles, located on the side of the connecting bracket near the pivot assembly. When the curtain fabric needs to be rolled up, the operator pulls the handle diagonally downwards to cause the rear sides of the limiting buckles with locking portions at both ends of the connecting bracket to tilt upwards, thus separating the locking portions from the corresponding limiting grooves. This is the same hand action as with traditional manual sunshades, without adding any extra movements. It not only enables quick unlocking but also avoids excessive distraction, ensuring driving safety.

Description

Technical Field

[0001] This invention relates to the field of sunshade technology, and in particular to a sunshade device, vehicle, and operating method. Background Technology

[0002] Currently, the opening and closing methods for sunroof sunshades in car and truck cabs are divided into manual and automatic opening and closing. Automatic opening and closing requires the addition of a motor and electronic control system, which is more expensive and more difficult to maintain. In order to reduce production and usage costs, sunshades mostly adopt manual opening and closing methods.

[0003] Traditional manually operated sunshades rely on the friction between the sunshade slider and the guide rail to achieve a hovering function. However, the position of a traditional manually operated sunshade is difficult to maintain after it is opened, and it is prone to lurching during driving scenarios such as sudden braking. In order to improve the positional stability of manually operated sunshades, manually operated sunshades with locking mechanisms have been developed to improve the ease of use.

[0004] Existing manual sunshades with locking mechanisms require operators to manually lock or unlock the mechanism, increasing the amount of hand movement and contradicting the traditional push-pull operation of manual sunshades. This is especially true when the operator is the driver, as the manual locking or unlocking actions distract the driver and seriously affect driving safety. Furthermore, the sunshade requires manual assistance throughout the retraction process, which also distracts the driver. Summary of the Invention

[0005] To address the technical problem in the aforementioned background art where existing manually operated sunshades with locking structures involve excessive hand movements, easily distracting the driver and seriously affecting driving safety, this invention provides a sunshade device, vehicle, and operating method.

[0006] The technical solution of this invention is as follows:

[0007] This invention provides a sunshade device, including a curtain fabric. A rotating shaft assembly is fixedly connected to one side of the curtain fabric, and a locking assembly is fixedly connected to the other side of the curtain fabric. Guide rails are provided at both ends of the curtain fabric. A limit groove is formed on the lower surface of the guide rail at the end away from the rotating shaft assembly. The locking assembly includes a connecting bracket. Limit buckles are fixedly connected to both ends of the connecting bracket and slidably disposed in the corresponding guide rails. The limit buckles are elastic elements. A handle is connected to the lower surface of the center position of the connecting bracket. A locking part is fixedly provided on the lower surface of the limit buckle. The locking part is located on the side of the connecting bracket closer to the rotating shaft assembly. When it is necessary to roll up the curtain fabric, the operator only needs to pull the handle diagonally downward. The handle drives the rear side of the limit buckle with the locking part at both ends to tilt up through the connecting bracket, thereby separating the locking part from the corresponding limit groove, and thus releasing the lock on the curtain fabric. The hand action is the same as that of a traditional manual sunshade, without adding any other unnecessary actions. It can not only achieve quick unlocking, but also will not distract attention too much, ensuring driving safety.

[0008] Preferably, the upper and lower surfaces of the limiting buckle are in constant contact with the upper and lower inner walls of the corresponding guide rail to avoid gaps, so that the two limiting buckles can move synchronously without deviation, ensuring smooth curtain winding.

[0009] Preferably, the limiting buckle has a support block inside. The support block is an elastic element and is used to support the upper and lower parts of the limiting buckle to ensure that the upper and lower surfaces of the limiting buckle can always be in contact with the upper and lower inner walls of the corresponding guide rail.

[0010] Preferably, the support block has a stronger deformation capacity than the limiting buckle, which promotes the rebound of the limiting buckle and prevents the locking part from automatically dislodging from the limiting groove. At the same time, it avoids fatigue failure of the limiting buckle.

[0011] Preferably, each guide rail is fixed with a plug, and the rotating shaft assembly is rotatably positioned between two plugs, which facilitates the installation of the rotating shaft assembly and prevents the connecting bracket from coming out of the guide rail when the curtain rolls back.

[0012] Preferably, the rotating shaft assembly includes a rotating shaft, which is a hollow tubular structure. Both ends of the rotating shaft are rotatably mounted on the end caps via connectors. The rotating shaft is equipped with a torsional energy storage unit. One end of the torsional energy storage unit is fixedly connected to a connector, and the other end of the torsional energy storage unit is fixedly connected to the rotating shaft via a damper. The torsional energy storage unit can drive the rotating shaft to rotate automatically around the shaft, thereby realizing the automatic retraction of the curtain. The damper is used to ensure the smoothness of the curtain retraction.

[0013] Preferably, the torsional energy storage unit is a torsion spring, which plays a role in storing energy when the curtain is unfolded.

[0014] This invention provides a vehicle that employs a sunshade device.

[0015] This invention provides an operating method, as follows: When the sunshade needs to be opened, manually pull the handle towards the front of the vehicle. The connecting bracket drives the limiting buckles at both ends to move along the corresponding guide rail. When the curtain is fully opened, the locking parts at the bottom of the rear side of the two limiting buckles engage with the corresponding limiting grooves to achieve self-locking. The way the curtain is opened is the same as the traditional manual opening method of sunshade, without adding hand movements. This facilitates operation and achieves self-locking of the curtain in place, preventing the curtain from shifting.

[0016] Preferably, when the sunshade needs to be closed, the operator pulls the handle diagonally downwards. The handle generates torque, which drives the rear of the limit buckles at both ends, which have locking parts, to lift up through the connecting bracket. The locking parts separate from the corresponding limit grooves, and the rotating shaft rotates under the action of the torsional energy storage unit. The curtain automatically retracts. The operator only needs to pull the handle diagonally downwards, which is the same as the hand action of a traditional manual sunshade. No other extra actions are added. This not only enables quick unlocking but also avoids excessive distraction, ensuring driving safety. At the same time, the curtain has the ability to automatically roll back without manual assistance, further reducing distraction.

[0017] As can be seen from the above technical solutions, the advantages of the present invention are:

[0018] 1. The curtain is equipped with guide rails at both ends. A limit groove is opened on the lower surface of the guide rail away from the rotating shaft assembly. Limit buckles are fixedly connected to both ends of the connecting bracket and slidably set in the corresponding guide rail. The lower surface of the limit buckle is fixedly provided with a locking part, which is located on the side of the connecting bracket closer to the rotating shaft assembly. When it is necessary to roll up the curtain, the operator only needs to pull the handle diagonally downward. The handle drives the rear side of the limit buckle with the locking part at both ends to tilt up through the connecting bracket, thereby separating the locking part from the corresponding limit groove and releasing the lock on the curtain. The hand action is the same as that of a traditional manual sunshade, without adding any other extra actions. It can not only achieve quick unlocking, but also will not distract attention too much, ensuring driving safety.

[0019] 2. The limit buckle is equipped with a support block to ensure that the upper and lower surfaces of the limit buckle are in constant contact with the upper and lower inner walls of the corresponding guide rail. This allows the two limit buckles to move synchronously without deviation, ensuring smooth curtain winding, promoting the rebound of the limit buckle and preventing the locking part from automatically dislodging from the limit groove, and avoiding fatigue failure of the limit buckle.

[0020] 3. The rotating shaft assembly stores energy through a torsional energy storage unit, enabling the curtain to automatically rewind without manual assistance. Combined with the locking assembly, this effectively reduces distraction and ensures driving safety. Attached Figure Description

[0021] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the sunshade device according to one or more embodiments of the present invention.

[0023] Figure 2 This is a top view of the sunshade device according to one or more embodiments of the present invention.

[0024] Figure 3 This is an exploded structural diagram of a rotating shaft assembly according to one or more embodiments of the present invention.

[0025] Figure 4 This is an exploded structural diagram of a locking assembly according to one or more embodiments of the present invention.

[0026] Figure 5 This is a partially enlarged structural diagram of the locking component and the guide rail locking engagement position according to one or more embodiments of the present invention;

[0027] Figure 6 This is a perspective structural diagram of the locking component and the guide rail locking engagement position according to one or more embodiments of the present invention;

[0028] Figure 7 This is a cross-sectional structural diagram of the locking component and the guide rail locking engagement position according to one or more embodiments of the present invention;

[0029] Figure 8 This is a schematic diagram of the movement trajectory of the handle during the unlocking process according to one or more embodiments of the present invention;

[0030] Figure 9 This is a schematic diagram of the state of the connecting bracket during the unlocking process according to one or more embodiments of the present invention;

[0031] Figure 10 This is a schematic cross-sectional view of the locking component at the engagement position with the guide rail during the unlocking process according to one or more embodiments of the present invention.

[0032] Figure 11 This is a schematic diagram of the motion trajectory of the sunshade device according to one or more embodiments of the present invention during the opening process;

[0033] The components represented by the various reference numerals in the diagram are:

[0034] 1. Curtain fabric; 2. First guide rail; 3. Second guide rail; 4. First limit buckle; 5. Second limit buckle; 6. First end cap; 7. Second end cap; 8. Rotating shaft; 9. Damper; 10. Connector; 11. Torsion spring; 12. Handle; 13. Bolt; 14. Connecting bracket; 15. Support block; 16. Limiting groove; 17. Snap-fit ​​part. Detailed Implementation

[0035] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0036] Example 1

[0037] In a typical embodiment of the present invention, a sunshade device is provided, such as... Figure 1 , Figure 2 As shown, the sunshade device includes: a curtain 1, two guide rails, a rotating shaft assembly, and a locking assembly. One side of the curtain 1 is fixedly connected to the rotating shaft assembly by adhesive. The curtain 1 can roll up onto the rotating shaft assembly as it rotates, serving as a sunshade or insect-proof function when the skylight is open. The other side of the curtain 1 is fixedly connected to the locking assembly by adhesive, and can move with the locking assembly. The two guide rails are located at both ends of the curtain 1, and the two ends of the curtain 1 are placed in adjacent guide rails. The two ends of the locking assembly are slidably located in adjacent guide rails. Through the cooperation of the locking assembly and the guide rails, the position of the curtain 1 is locked after it is opened, preventing the curtain 1 from shifting.

[0038] In this embodiment, the guide rail is divided into a first guide rail 2 and a second guide rail 3. The first guide rail 2 and the second guide rail 3 are arranged opposite to each other at both ends of the curtain 1 to play a guiding and limiting role.

[0039] like Figure 3 As shown, the rotating shaft assembly includes a first plug 6, a second plug 7, a rotating shaft 8, a damper 9, a connector 10, and a torsional energy storage unit. The torsional energy storage unit is a torsion spring 11. The rotating shaft 8 is a hollow tubular structure. Both ends of the rotating shaft 8 are rotatably connected to the first plug 6 and the second plug 7, respectively. Specifically, the first plug 6 is fixedly mounted on the first guide rail 2 by bolt installation, and the second plug 7 is fixedly mounted on the second guide rail 3 by bolt installation. Both ends of the rotating shaft 8 are rotatably connected to a connector 10, which is rotatably connected to the adjacent first plug 6 and second plug 7 through the connector 10. The connector 10 is used to limit the axial position of the rotating shaft 8.

[0040] Two connecting parts 10 are rotatably connected to the rotating shaft 8, and the connecting parts 10 are fixedly connected to the corresponding first end cap 6 and second end cap 7. The torsion spring 11 is located inside the rotating shaft 8, and one end of the torsion spring 11 is fixedly connected to the connecting part 10 on the adjacent first end cap 6. The other end of the torsion spring 11 is fixedly connected to the damper 9. The damper 9 is located inside the rotating shaft 8, and the damper is fixedly connected to the inner wall of the end of the rotating shaft 8 near the second end cap 7 by means of interference fit, so that the torsion spring 11 can be torsion when the rotating shaft 8 rotates. After the curtain 1 is released, the torsion spring 11 drives the damper 9 to rotate, and then drives the rotating shaft 8 to rotate through the damper 9, so as to realize the automatic winding of the curtain 1 of the rotating shaft 8. During this period, the damper 9 provides resistance to the mechanical energy released by the torsion spring 11, ensuring the smooth winding of the curtain 1 and reducing vibration.

[0041] like Figure 4 As shown, the locking assembly includes a first limiting buckle 4, a second limiting buckle 5, a handle 12, and a connecting bracket 14. The first limiting buckle 4 is fixedly disposed at one end of the connecting bracket 14, and the second limiting buckle 5 is fixedly disposed at the other end of the connecting bracket 14. The two ends of the connecting bracket 14 are slidably disposed within the first guide rail 2 and the second guide rail 3 located at both ends. Both the first limiting buckle 4 and the second limiting buckle 5 are elastic elements. Specifically, the first limiting buckle 4 is slidably disposed within the first guide rail 2, and the second limiting buckle 5 is slidably disposed within the second guide rail 3. The lower surface of the center position of the connecting bracket 14 is fixedly connected to the handle 12 by bolts 13, so as to drive the connecting bracket 14 to slide along the length direction of the first guide rail 2 and the second guide rail 3 through the handle 12.

[0042] like Figure 5 As shown, a limiting groove 16 is formed on the lower surface of the first guide rail 2 and the second guide rail 3 at the end away from the rotating shaft assembly. The limiting groove 16 penetrates the lower surface of the corresponding guide rail. A locking part 17 is fixedly provided on the lower surface of both the first limiting buckle 4 and the second limiting opening 5, so that the locking part 17 cooperates with the corresponding limiting groove 16 (e.g., ...). Figure 6 and Figure 7 As shown in the figure, the position of the curtain 1 is locked and fixed after it is opened to the correct position, so as to limit the position of the curtain 1 and prevent it from moving due to sudden braking or other reasons.

[0043] The locking part 17 is located behind the connecting bracket 14, that is, the locking part 17 is located on the side of the connecting bracket 14 near the rotating shaft assembly (which can also be understood as the rear of the opening and moving path of the curtain 1). Therefore, when it is necessary to roll up the curtain 1, the operator only needs to pull the handle 12 located in front of his head diagonally downwards. The handle 12 drives the first limiting buckle 4 and the second limiting buckle 5 at both ends of its connecting bracket 14 to raise the rear side of the locking part 17 (such as...). Figure 8 , Figure 9 , Figure 10As shown), this separates the snap-fit ​​part 17 from the corresponding limiting groove 16, thereby releasing the lock on the curtain 1.

[0044] The traditional manual sunshade retraction action involves the operator pulling the sunshade diagonally downwards and backwards. In this embodiment, the operation of handle 12 is also to pull diagonally downwards, which is the same as the hand action of the traditional manual sunshade. No other extra actions are added, which not only enables quick unlocking, but also avoids excessive distraction and ensures driving safety.

[0045] To ensure that the first limiting buckle 4 and the second limiting buckle 5 can move synchronously and avoid jamming when the curtain 1 is retracted, this embodiment also provides a support block 15 inside the first limiting buckle 4 and the second limiting buckle 5. The support block 15 is an elastic element and is used to support the upper and lower parts of the corresponding limiting buckle to ensure that the first limiting buckle 4 and the second limiting buckle 5 can always fill the guide rail. That is, the upper and lower surfaces of the first limiting buckle 4 and the second limiting buckle 5 are always in contact with the upper and lower inner walls of the corresponding guide rail to avoid gaps. This allows the first limiting buckle 4 and the second limiting buckle 5 to move synchronously without deviation, ensuring the smooth retraction of the curtain 1.

[0046] The support block 15 is also an elastic body. The deformation capacity of the support block 15 is stronger than that of the first limiting buckle 4 and the second limiting buckle 5. In this embodiment, the support block 15 is made of Epdm material, and the first limiting buckle 4 and the second limiting buckle 5 are made of POM material. The support block 15 supports the first limiting buckle 4 and the second limiting buckle 5, promotes the rebound of the limiting buckle and prevents the locking part 17 from automatically dislodging from the limiting groove 16. At the same time, it avoids fatigue failure of the first limiting buckle 4 and the second limiting buckle 5.

[0047] The specific working principle is as follows:

[0048] When the sunshade needs to be opened, manually pull the handle 12 towards the front of the vehicle. The first limit buckle 4 and the second limit buckle 5 at both ends of the handle 12 will move along the corresponding first guide rail 2 and second guide rail 3 towards the front of the vehicle through the connecting bracket 14. When the curtain 1 is fully opened, the locking part 17 at the bottom of the rear side of the first limit buckle 4 and the second limit buckle 5 will engage with the corresponding limit groove 16, realizing the self-locking of the sunshade when it is opened. While the curtain 1 is pulled open, the rotating shaft 8 rotates around the shaft and stores potential energy through the torsion spring 11.

[0049] When the sunshade needs to be closed, the operator pulls the handle 12 located in front of their head diagonally downwards. The handle 12 generates torque and drives the rear side of the first limit buckle 4 and the second limit buckle 5 with the locking part 17 at both ends to tilt up through the connecting bracket 14, thereby separating the locking part 17 from the corresponding limit groove 16, thereby releasing the lock on the curtain 1. The rotating shaft 8 rotates under the action of the torsion spring 11, thereby realizing the automatic retraction of the curtain 1.

[0050] Example 2

[0051] In another typical embodiment of the present invention, such as Figure 11 As shown, a vehicle is proposed that uses the sunshade device from Embodiment 1, which is installed at the sunroof of the vehicle's driver's cab.

[0052] Example 3

[0053] In another typical embodiment of the present invention, a method for operating a sunshade device is provided, as follows:

[0054] When the sunshade needs to be opened, manually pull the handle 12 towards the front of the vehicle. The first limit buckle 4 and the second limit buckle 5 at both ends of the handle 12 will move along the corresponding first guide rail 2 and second guide rail 3 towards the front of the vehicle through the connecting bracket 14. When the curtain 1 is fully opened, the locking part 17 at the bottom of the rear side of the first limit buckle 4 and the second limit buckle 5 will engage with the corresponding limit groove 16, realizing the self-locking of the sunshade when it is opened. While the curtain 1 is pulled open, the rotating shaft 8 rotates around the shaft and stores potential energy through the torsion spring 11.

[0055] When the sunshade needs to be closed, the operator pulls the handle 12 located in front of their head diagonally downwards. The handle 12 generates torque and drives the rear side of the first limit buckle 4 and the second limit buckle 5 with the locking part 17 at both ends to tilt up through the connecting bracket 14, thereby separating the locking part 17 from the corresponding limit groove 16, thereby releasing the lock on the curtain 1. The rotating shaft 8 rotates under the action of the torsion spring 11, thereby realizing the automatic retraction of the curtain 1, and ensuring the smooth retraction of the curtain 1 under the action of the damper 9.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shade device comprising: A curtain (1) is characterized in that a rotating shaft assembly is fixedly connected to one side of the curtain (1), and a locking assembly is fixedly connected to the other side of the curtain (1). Guide rails are provided at both ends of the curtain (1). A limit groove (16) is opened on the lower surface of the end of the guide rail away from the rotating shaft assembly. The locking assembly includes a connecting bracket (14). Limit buckles are fixedly connected to both ends of the connecting bracket (14) and slidably disposed in the corresponding guide rails. The limit buckles are elastic elements. A handle (12) is connected to the lower surface of the center position of the connecting bracket (14). A handle (12) is fixedly provided on the lower surface of the limit buckle. The snap-fit ​​part (17) is located on the side of the connecting bracket (14) near the rotating shaft assembly. The inside of the limiting buckle is provided with a support block (15). The support block (15) is an elastic element. The support block (15) is used to support the upper and lower parts of the limiting buckle. When the sunshade needs to be closed, the handle (12) is pulled diagonally downward. The handle (12) drives the side of the limiting buckle with the snap-fit ​​part (17) at both ends to lift up through the connecting bracket (14). The snap-fit ​​part (17) separates from the corresponding limiting groove (16), thereby releasing the lock on the curtain (1).

2. The sunshade device according to claim 1, characterized in that, The upper and lower surfaces of the limit buckle are in constant contact with the upper and lower inner walls of the corresponding guide rails.

3. The sunshade device according to claim 1, characterized in that, The support block (15) has a stronger deformation capacity than the limit buckle.

4. The sunshade device according to claim 1, characterized in that, Each guide rail is fixed with a plug, and the rotating shaft assembly is rotatably positioned between two plugs.

5. The sunshade device according to claim 4, characterized in that, The rotating shaft assembly includes a rotating shaft (8), which is a hollow tubular structure. Both ends of the rotating shaft (8) are rotatably mounted on the end caps via connectors (10). The rotating shaft (8) is equipped with a torsional energy storage unit inside. One end of the torsional energy storage unit is fixedly connected to a connector (10), and the other end of the torsional energy storage unit is fixedly connected to the rotating shaft (8) via a damper (9).

6. The sunshade device according to claim 5, characterized in that, The torsional energy storage unit is a torsion spring (11).

7. A vehicle, characterized in that, The sunshade device as described in any one of claims 1-6 is adopted.

8. An operating method, characterized in that, The sunshade device as described in any one of claims 1-6 is used as follows: When the sunshade needs to be opened, the handle (12) is manually pulled in the direction of the front of the vehicle. The limit buckles at both ends of the connecting bracket (14) are moved along the corresponding guide rail. When the curtain (1) is unfolded into place, the locking part (17) at the bottom of the rear side of the two limit buckles is locked into the corresponding limit groove (16) to achieve self-locking.

9. The operating method according to claim 8, characterized in that, When the sunshade needs to be closed, the operator pulls the handle (12) diagonally downwards. The handle (12) generates torque and drives the rear side of the locking part (17) of the limit buckle at both ends to tilt up through the connecting bracket (14). The locking part (17) separates from the corresponding limit groove (16), and the rotating shaft (8) rotates under the action of the torsional energy storage unit, and the curtain (1) is automatically retracted.

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