CN114889416A

CN114889416A - Sunshade curtain structure capable of stopping immediately after being pulled

Info

Publication number: CN114889416A
Application number: CN202210311115.7A
Authority: CN
Inventors: 王铭; 周跃华; 江梦杰; 张书勇
Original assignee: Shanghai Yutian Guanjia Technology Co ltd
Current assignee: Shanghai Yutian Guanjia Technology Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-08-12

Abstract

The invention belongs to the technical field of automobile parts and discloses a pull-stop sunshade curtain structure capable of improving the operation comfort. The skylight frame comprises a skylight frame, wherein guide rails are respectively formed on two sides in the width direction of the skylight frame; the winding drum is rotatably arranged on the skylight frame and close to one end of the guide rail, and two ends of the winding drum are provided with rotating wheels wound with flexible cables; the sunshade curtain can be reeled and covered on the outer side wall of the reel in a retractable manner; the pulley assembly is arranged at the other end of the guide rail, the operation plate is slidably arranged in the guide rail, the free end of the flexible cable is wound around the pulley assembly and then is connected with one end of the operation plate, and the other end of the operation plate is connected with the sunshade curtain. Pulley assembly includes pulley base of elasticity grafting on the guide rail and the assembly pulley that links to each other with pulley base, and the sunshade screen structure of stopping promptly along with drawing still includes the damping piece that is used for the butt assembly pulley, when not operating the sunshade screen: the pulley block is abutted against the damping block; when operating the sunshade: the operation plate pulls the flexible cable to drive the pulley block to be separated from the damping block.

Description

Sunshade curtain structure capable of stopping immediately after being pulled

Technical Field

The invention relates to the technical field of automobile parts, in particular to a pull-stop sunshade curtain structure.

Background

A sun-shading curtain is generally equipped on an automobile skylight to shade sunlight, and most sun-shading curtains are generally of a structure which stops when being pulled, and are used for opening and closing the sun-shading curtain at any required position.

The existing sun-shading curtain capable of being stopped immediately after being pulled comprises a sun-shading curtain assembly, a winding drum, a skylight frame, a pulley block structure, an operation plate and a damping system. When the sun-shading curtain is opened immediately after being pulled, the operation plate pulls the flexible cable to enable the rotating wheel at the end of the roller to release the flexible cable, and the rotating wheel drives the roller to roll the sun-shading curtain; when the sunshade curtain is closed, the operation plate pulls the sunshade curtain assembly to enable the winding drum to rotate to release the curtain cloth, and the rotating wheel at the end of the winding drum is driven to wind the flexible cable.

However, in the case of a vehicle with a large acceleration, due to the inertia effect, there is a potential failure mode in which the position of the sunshade assembly itself changes, and in the prior art, the damping of the damping system is usually increased to avoid the potential failure mode, but this mode also greatly increases the operating strength of the operator for operating the operation panel, which is not favorable for the comfort of the sunshade operation.

Disclosure of Invention

In order to avoid the occurrence of the potential failure mode of the sunshade curtain and improve the operation comfort of the sunshade curtain, the invention provides a pull-stop sunshade curtain structure.

The pull-stop sunshade structure according to the present invention comprises: the skylight comprises a skylight frame, wherein guide rails are respectively formed on two sides of the skylight frame in the width direction; the winding drum is rotatably arranged between two sides of the skylight frame in the width direction and is close to one end of the guide rail, rotating wheels are arranged at two ends of the winding drum, and flexible cables are wound on the rotating wheels; the sunshade curtain can be reeled and covered on the outer side wall of the reel in a retractable manner; a pulley assembly mounted on the other end of the guide rail; the free end of the flexible cable is connected with one end of the operating plate after being wound by the pulley assembly, and the other end of the operating plate is connected with the sunshade screen, wherein the pulley assembly comprises a pulley base which is elastically inserted on the guide rail and a pulley block which is connected with the pulley base; under the motion state, the operation panel pulls the flexible cable to drive the pulley block to be separated from the damping block.

Furthermore, the pulley base comprises a base body inserted on the guide rail and an elastic piece elastically compressed and abutted between the guide rail and the base body, and the base body is connected with the pulley block.

Further, a space is formed between the bottom wall of the guide rail opposite to the opening of the guide rail and the skylight frame, so that the base body is inserted on the bottom wall.

Furthermore, the inserting end of the base body is provided with an inserting groove, and a positioning component for installing the elastic piece is formed in the inserting groove.

Furthermore, the elastic part is a spring, the positioning part is constructed into a mounting shaft, and the end part of the spring is sleeved on the mounting shaft; or the positioning member is configured as a mounting hole with the spring coaxially disposed within the mounting hole.

Further, one end of the guide rail close to the pulley base is formed with a stop block for preventing the operating plate from falling off the guide rail, and the damping block is connected with the stop block.

Further, a damping block is attached to the skylight frame near an end of the guide rail near the sheave base.

Further, the outer edge of the pulley block is formed in a circular shape, and the shape of the surface of the damping block abutting against the pulley block is configured to fit the circular shape.

Further, the outer edge of the pulley block is formed in a tooth shape, and the surface of the damping block abutting against the pulley block is shaped to engage with the tooth shape.

Furthermore, damping devices are respectively arranged on two sides of the skylight frame in the width direction, the winding drum is fixed between the two damping devices, and the rotating wheel is located between the winding drum and the damping devices.

According to the pull-stop-while-pull sunshade curtain structure, the pulley base is elastically inserted into the guide rail, so that the pulley block continuously bears elastic ejection force, the damping block is additionally arranged at the outer end of the pulley block, and the sunshade curtain is additionally damped in a non-operation state, therefore, when the sunshade curtain is positioned at a certain position, the additional resistance can effectively prevent the sunshade curtain from moving due to the inertia effect, namely, the potential failure mode of the sunshade curtain can be effectively prevented. When the sunshade curtain is operated, the pulley block overcomes the elastic ejecting force after being subjected to the pulling force of the flexible cable, so that the pulley block is separated from the damping block, and the damping is reduced at the moment, so that the lower damping can reduce the operating force of an operator to improve the operating comfort of the sunshade curtain.

Drawings

FIG. 1 is a schematic structural view of a pull-stop sunshade according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an upper region of the pull-stop sunshade structure shown in FIG. 1;

FIG. 3 is a schematic structural view of the first embodiment of the sheave assembly shown in FIG. 2;

fig. 4 is a perspective view of the construction of the sheave assembly shown in fig. 3;

FIG. 5 is a functional schematic of the sheave assembly shown in FIG. 3;

FIG. 6 is a schematic structural view of the first embodiment of the sheave base shown in FIG. 3;

FIG. 7 is a schematic structural view of a second embodiment of the sheave base shown in FIG. 3;

fig. 8 is a schematic view of a second embodiment of the sheave assembly shown in fig. 2.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

Fig. 1 and 2 show a structure of a pull-stop sunshade structure 100 according to an embodiment of the present invention, which includes: the skylight comprises a skylight frame 1, wherein guide rails 2 are respectively formed on two sides of the skylight frame 1 in the width direction; a winding drum 3 rotatably installed between both sides of the skylight frame 1 in the width direction and near one end of the guide rail 2, wherein both ends of the winding drum 3 are provided with rotating wheels 4, and a flexible cable 8 is wound on the rotating wheels 4 (as shown in fig. 2); a sunshade curtain 5 which can be reeled and covered on the outer side wall of the reel 3 in a retractable way; a pulley assembly 6 mounted on the other end of the guide rail 2; and an operation plate 7 which is arranged in the guide rail 2 in a sliding way, the free end of the flexible cable 8 is connected with one end of the operation plate 7 after winding the pulley assembly 6, and the other end of the operation plate 7 is connected with the sunshade curtain 5. As shown in fig. 3, the pulley assembly 6 includes a pulley base 61 elastically inserted on the guide rail 2 and a pulley block 62 connected to the pulley base 61, the pull-and-stop sunshade structure 100 further includes a damping block 63 for abutting against the pulley block 62, the pulley block 62 has a rest state when the sunshade curtain 5 is not operated and a moving state when the sunshade curtain 5 is operated, and in the rest state, the pulley block 62 abuts against the damping block 63; in the motion state, the operation plate 7 pulls the flexible cable 8 to drive the pulley block 62 to separate from the damping block 63.

In the pull-once-stop sunshade structure 100 according to the embodiment of the present invention, as shown in fig. 3 and 4, the pulley base 61 is elastically inserted into the guide rail 2, the pulley block 62 is connected to the pulley base 61, and by providing the damping block 63 outside the pulley block 62, when the sunshade curtain 5 is in the non-operation state, i.e. when the sunshade curtain 5 is in the static state, the pulley block 62 connected to the pulley base 61 is pushed to abut against the damping block 63 under the elastic action of the pulley base 61, so as to generate a large damping force. When the sunshade 5 is operated, that is, the sunshade is in a moving state, the pulley block 62 is separated from the damping block 63 only by overcoming the elastic action of the pulley base 61 on the pulley block 62 under the action of the flexible cable 8, both during the opening and during the closing of the sunshade 5, which helps to reduce the damping, so that the opening or closing of the sunshade 5 can be realized with a small operation force.

Referring to fig. 5, the pull-stop sunshade structure 100 according to the embodiment of the present invention is configured to elastically insert the pulley base 61 into the guide rail 2, so that the pulley block 62 continuously receives the elastic ejecting force F2, and the damping block 63 is added to the outer end of the pulley block 62, so that the sunshade 5 increases damping in the non-operation state, and thus, when the sunshade 5 is at a certain position, the increased damping force can effectively prevent the sunshade 5 from moving due to inertia, that is, the sunshade 5 can effectively prevent a potential failure mode. When the sunshade curtain 5 is operated, the pulley block 62 overcomes the elastic ejecting force F2 after being subjected to the pulling force F1 of the flexible cable 8, so that the pulley block 62 is separated from the damping block 63, and the damping is reduced at the moment, therefore, the lower damping can reduce the operating force of an operator, so as to improve the operating comfort of the sunshade curtain 5.

In a preferred embodiment as shown in fig. 3 and 4, the pulley base 61 may comprise a base body plugged onto the guide rail 2 and an elastic member 64 elastically compressed and abutting between the guide rail 2 and the base body, the base body being connected with a pulley block 62, which is provided for enabling elastic plugging of the pulley assembly 6 with respect to the guide rail 2.

As shown in fig. 2 and 3, a space is formed between the bottom wall 21 of the guide rail 2 opposite to the opening thereof and the skylight frame 1, so that the base body is inserted on the bottom wall 21. The spacing provides space for the base body to plug into the bottom wall 21 of the track 2 and also provides space for the wire 8 to run.

As shown in fig. 6 and 7, the insertion end of the base body of the pulley base 61 may be formed with an insertion groove 611, and a positioning member for mounting the elastic member 64 is formed in the insertion groove 611. As shown in fig. 3, the elastic element 64 may be a spring, and the positioning element may be a mounting shaft 612 as shown in fig. 6, or may be a mounting hole 613 as shown in fig. 7, and an end of the spring is sleeved on the mounting shaft 612, or is coaxially disposed in the mounting hole 613. Further preferably, the mounting hole may have a tunnel shape as shown in fig. 7, and may also have a counter-bore shape formed on the bottom wall of the insertion groove 611.

Preferably, the elastic element 64 may also be a spring piece, and the shape of the spring piece is preferably Z-shaped, and the Z-shaped spring piece elastically abuts between the bottom wall of the insertion groove 611 and the side surface of the bottom wall 21 of the guide rail 2.

As shown in fig. 4, one end of the guide rail 2 near the pulley base 61 is formed with a stopper 22 for preventing the operating plate 7 from falling out of the guide rail 2, and in a preferred embodiment, a damping block 63 may be connected to the stopper 22. In this embodiment, the damping block 63 may be a separately manufactured part or may be an integral part of the stopper block 22.

In another preferred embodiment, the damping block 63 may be connected to the sunroof frame 1 located near one end of the guide rail 2 near the pulley base 61.

In the embodiment shown in fig. 3 and 4, the outer edge of the pulley block 62 may be formed in a circular shape, and the surface of the damping block 63 abutting against the pulley block 62 may be shaped to conform to the circular shape. This form of fit may make the pulley block 62 and the damping mass 63 more stable when in contact.

In the embodiment shown in fig. 8, the outer edge of the pulley arrangement 62 may also be formed as teeth 631, the face of the damping mass 63 abutting the pulley arrangement 62 being shaped to engage the teeth 631. Compared to the embodiment shown in fig. 3 and 4, the arrangement of this embodiment ensures that the least elastic ejecting force F2 can be overcome when operating the shade 5, so as to further reduce the additional operating force caused by the elastic ejecting force F2 when operating the shade 5, and to obtain as much damping as possible in the non-operating state.

Preferably, the teeth 631 may be preferably triangular teeth.

According to the invention, two sides of the skylight frame 1 in the width direction are respectively provided with a damping device, the winding drum 3 is fixed between the two damping devices, and the rotating wheel is positioned between the winding drum and the damping devices. Referring to fig. 1 and 2, during the process of opening the sunshade curtain 5, the operating plate 7 pulls the flexible cable 8, so that the rotating wheel 4 at the end of the winding drum 3 releases the flexible cable 8, and the rotating wheel 4 overcomes the resistance of the damping device and drives the winding drum 3 to wind the sunshade curtain 5; in the closing process of the sunshade screen 5, the operation plate 7 pulls the sunshade screen 5, the sunshade screen 5 drives the winding drum 3 to rotate, so that the rotating wheel 4 at the end part of the winding drum is driven to overcome the resistance of the damping device and roll up the flexible cable 8, and the function of stopping the sunshade screen 5 immediately along with pulling is realized. On the basis of the arrangement of the damping device, the pulley base 61 is elastically inserted on the guide rail 2, and the damping block 63 is additionally arranged at the outer end part of the pulley block 62, so that the operating comfort of the sun-shading curtain 5 can be improved while the potential failure mode of the sun-shading curtain 5 is avoided.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A pull-stop sunshade structure, comprising:

the skylight comprises a skylight frame, wherein guide rails are respectively formed on two sides of the skylight frame in the width direction;

the winding drum is rotatably installed between two sides of the skylight frame in the width direction and close to one end of the guide rail, rotating wheels are arranged at two ends of the winding drum, and flexible cables are wound on the rotating wheels;

the sun-shading curtain can be retractably wound on the outer side wall of the winding drum;

a pulley assembly mounted on the other end of the guide rail; and

an operation plate slidably mounted in the guide rail, wherein the free end of the flexible cable is connected with one end of the operation plate after passing through the pulley assembly, the other end of the operation plate is connected with the sunshade curtain,

the roller assembly comprises a roller base which is elastically inserted on the guide rail, a roller block which is connected with the roller base, and a damping block which is used for being abutted against the roller block, the roller block has a static state when the sun-shading curtain is not operated and a motion state when the sun-shading curtain is operated, and the roller block is abutted against the damping block in the static state; in the motion state, the operation plate pulls the flexible cable to drive the pulley block to be separated from the damping block.

2. The pull-once-stop sunshade structure of claim 1, wherein said pulley base includes a base body inserted on said guide rail and an elastic member elastically compressed and abutted between said guide rail and said base body, said base body being connected to said pulley block.

3. The pull-once-stop sunshade structure of claim 2, wherein a bottom wall of said guide rail opposite to the opening thereof is spaced from said skylight frame such that said base body is plugged onto said bottom wall.

4. The pull-once stop-and-go sunshade structure as claimed in claim 2 or 3, wherein said base body has an insertion slot formed at its insertion end, and a positioning member for mounting said elastic member is formed in said insertion slot.

5. The pull-once-stop sunshade structure of claim 4, wherein said elastic member is a spring, said positioning member is configured as an installation shaft, and an end of said spring is fitted over said installation shaft; or the positioning part is configured as a mounting hole, and the spring is coaxially arranged in the mounting hole.

6. The pull-once-stop sunshade structure according to any one of claims 1 to 3, wherein an end of said guide rail near said pulley base is formed with a stopper block for preventing said operation panel from falling out of said guide rail, and said damper block is connected to said stopper block.

7. The pull-stop shade structure according to any one of claims 1 to 3, wherein the damping block is connected to the skylight frame near an end of the guide rail near the pulley base.

8. The pull-once-stop shade structure according to any one of claims 1 to 3, wherein an outer edge of the pulley block is formed in a circular shape, and a face of the damping block abutting the pulley block is shaped to conform to the circular shape.

9. The pull-once-stop shade structure according to any one of claims 1 to 3, wherein an outer edge of the pulley block is formed in a tooth shape, a face of the damping block abutting the pulley block being shaped to engage with the tooth shape.

10. A pull-once-stop sunshade structure as recited in any one of claims 1 to 3, wherein damping devices are respectively provided on both sides in the width direction of said skylight frame, said drum is fixed between said damping devices, and said runner is located between said drum and said damping devices.