KR20130055543A

KR20130055543A - Sunshade assembly

Info

Publication number: KR20130055543A
Application number: KR1020120130371A
Authority: KR
Inventors: 폴 린
Original assignee: 마카오토 인더스트리얼 코., 엘티디.
Priority date: 2011-11-18
Filing date: 2012-11-16
Publication date: 2013-05-28
Also published as: TW201321592A; JP2013108345A; CN103122747A; DE202012010976U1

Abstract

PURPOSE: A sunshade assembly is provided to improve a user convenience by smoothly contracting and extending a sunshade curtain without inserting a pinion gear into a leg member. CONSTITUTION: A sunshade assembly comprises a mounting unit(2), a sunshade unit(3), two guide rail units(1), a link unit(4), and a resistance unit. The sunshade unit comprises a winding shaft(31), a sunshade curtain(32), and a pulling rod(33). The guide rail unit comprises a leg member(12) and a frame(11). The link unit comprises a connection shaft(41) and two pinion gears(42). The pinion gears are separately attached to the opposed ends(410,411) of the connection shaft, interlocked with the leg members, and moves in parallel with respect to the winding shaft without deviating.

Description

Sunshade assembly

TECHNICAL FIELD The present invention relates to sunshade assemblies, and more particularly, to sunshade assemblies adapted to be disposed on an inner surface of a window of a vehicle or building with pinion gears engaged with rack members.

Currently, various types of sunshade assemblies are on the market, a typical track type sunshade assembly has two guide rails each disposed on two lateral sides of the sunshade curtain. In use, the sunshade curtain can extend or contract along two guide rails. In order to adjust the shade area, various structures have been developed by manufacturers that allow the user to freely pull and stop the shade curtain at any desired extension position to freely adjust the range of the shade. However, when the sunshade curtain is extended, the conventional sunshade assembly is limited by its structural design, and thus, at the central position of the free end of the sunshade curtain in order to smoothly extend the sunshade curtain along the guide rail. You need to apply the pulling force. If the pulling force is applied at a position deviating from the central position of the free end of the sunshade curtain, the pulling force will be applied unevenly to the sunshade curtain, and the sunshade curtain tends to be inclinedly wound or sandwiched between the guide rails. Thus, the smoothness of winding and extending the sunshade curtain will be adversely affected, and in the worst case, the sunshade curtain may not be extended, causing inconvenience to the user.

It is therefore an object of the present invention to provide a sunshade assembly capable of alleviating at least one of the above mentioned disadvantages of the prior art.

According to the invention, the sunshade assembly comprises two spaced mounting seats, a winding shaft, a sunshade curtain, a pull rod, two guide rail units, a link unit and a resistance unit. Equipped. The winding shaft is rotatably mounted between the mounting sheets. The sunshade curtain extends around the winding shaft. The pull rod is connected to one end of the sunshade curtain at the end from the winding shaft. Each of the guide rail units has a rack member in the longitudinal direction in a direction crossing the winding shaft. The link unit has a connecting shaft and two pinion gears, which are rotatably mounted to the pull rod and have two opposing ends, each of which pinion gears are attached and guided to two opposing ends of the connecting shaft. Meshes with the rack members of the rail units. The resistance unit has a base, the base mounted to the pull rod and frictionally contacting the connecting shaft to provide resistance to the resistance of the connecting shaft.

The present invention provides an improved sunshade assembly that can solve the problems of the prior art.

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings.
1 is a schematic view showing in a wound state a preferred embodiment of the sunshade assembly according to the invention.
FIG. 2 is an enlarged partial perspective view illustrating the cooperative action between the link unit, the guide rail unit and the pulling rod of the preferred embodiment of FIG. 1.
3 is an enlarged partial exploded perspective view illustrating the engagement between the pull rod and the resistance unit of the preferred embodiment of FIG.
4 is an enlarged partial cross-sectional view showing the assembly of the pull rod, resistance unit and link unit of the preferred embodiment of FIG.
FIG. 5 is a schematic view similar to FIG. 1 showing the sunshade assembly in the extended embodiment in a preferred embodiment.

1 to 3, a preferred embodiment of the sunshade assembly according to the present invention is shown. The sunshade assembly is adapted to be installed on the inner surface of a window of a vehicle or building. In this embodiment, the sun visor assembly is disposed on the roof wife of a vehicle (not shown) to cover a sunroof. Alternatively, the sun visor assembly may be disposed on the inner surface of the vehicle door to cover the side windows. Thus, the placement position and orientation of the sunshade assembly according to the invention can be adjusted based on the intended application and is not limited to the preferred embodiment.

In this preferred embodiment, the sunshade assembly comprises a mounting unit 2, a sunshade unit 3, two guide rail units 1, a link unit 4 and a resistance unit 5.

The mounting unit 2 comprises two spaced mounting sheets 21. As an alternative, the two mounting sheets 21 may be integrally formed. Since the feature of the present invention is not in the configuration of the mounting sheets 21 as those skilled in the art can easily understand, the details thereof are omitted here for brevity.

The sunshade unit 3 is formed from a winding shaft 31 rotatably mounted between the mounting sheets 21, a sunshade curtain 32 wound around the winding shaft 31 so as to extend, and the winding shaft 31. A pull rod 33 connected to one end 321 of the sunshade curtain 32 at its distal end. Preferably, the pull rod 33 is a hollow rod and extends along the width direction of the vehicle curtain 32. Preferably, the shading unit 3 further comprises at least one elastic member (not shown) having two opposing ends. One of the opposing ends is fixed and the other of the opposing ends is connected to the winding shaft 31 such that the elastic member provides elastic force to drive rotation of the winding shaft 31 which tends to be wound, That is, the sunshade curtain 32 tends to wind around the winding shaft 31 when no force is applied.

In this embodiment, each of the guide rail units 1 has a rack member 12 in the longitudinal direction extending in the direction crossing the winding shaft 31. Preferably, each of the guide rail units 1 further comprises an elongated frame 11, which elongates the main wall 111 and two opposing ends of the main wall 111. From two opposite side walls 112 each extending laterally towards the other end of the guide rail units 1. The main wall 111 and the side walls 112 of each guide rail unit 1 form a cooperatively formed rail groove 113 having an open end. The open ends of the rail grooves 113 of the two guide rail units 1 face each other. The rack member 12 is longitudinally disposed on one of the side walls 112 and has a plurality of rack teeth 121. As an alternative, the rack member 12 and the frame 11 of each of the guide rail units 1 may be integrally formed.

The link unit 4 has a connecting shaft 41 and two pinion gears 42, which are rotatably mounted in the pull rod 33 and have two opposing ends 410, 411. 42 are attached to the two opposite ends 410, 411 of the connecting shaft 41, respectively, and engage the rack members 12. The connecting shaft 41 can move with the pull rod 33 along the rack members 12. Each of the pinion gears 42 has a plurality of gear teeth 421, each of which meshes with a corresponding one rack tooth 121 of the rack members 12. The pinion gears 42 are rotatable with the connecting shaft 41 and can move back and forth simultaneously along the rack members 12. By the engagement between the gear tooth 421 and the rack tooth 121, the pinion gears 42 can move simultaneously and stably on the rack member 12, and the connecting shaft 41 can be wound without winding. It can be moved relative to the winding shaft in parallel to 31 to control the forward and backward movement distances of the pulling rod 33 relative to the winding shaft 31. Preferably, each of the pinion gears 42 may be a flexible material selected from the group consisting of silicone, rubber, and combinations thereof, while each of the rack members 12 is higher than the hardness of the flexible material, such as plastic. It may be made from a material having a hardness. Alternatively, each of the rack members 12 may be made of a flexible material and each of the pinion gears 42 may be made of a material having a hardness higher than that of the flexible material. The selection of materials for manufacturing the pinion gears 42 and the rack members 12 is preferably complementary to each other, providing frictional resistance and reducing noise when the sunshade curtain 32 is adjusted. However, actual performance is not limited to that aspect.

In this embodiment, the resistance unit 5 is arranged in the pulling rod 33, which is formed of a hollow rod and has a base 51 and a fastener 52. The base 51 is mounted in the hollow pull rod 33 and in frictional contact with the connecting shaft 41 to provide resistance to the rotation of the connecting shaft 41. In this case, the base 51 has two spaced apart base walls 511 and a connecting wall 512, which interconnect the base walls 511 and open in cooperation with the base wall 511. Channel 513 is formed.

3 and 4, the open channel 513 has an insertion portion 514 proximate the connecting wall 512 and an open portion 515 distal from the connecting wall 512. Preferably, the insertion portion 514 has a configuration substantially corresponding to that of the connecting shaft 41. The connecting shaft 41 is inserted through the insertion portion 514. Furthermore, the opening portion 515 has a size narrower than the size of the insertion portion 514, such that the connecting rod 41 is limited in the insertion portion 514 and fits between the base walls 511. Each base wall 511 has a screw hole 516, the screw hole communicating with the open portion 515, the screw hole being distal from the connecting wall 512.

Fixture 52 secures base 51 to pull rod 33. In this embodiment, the fixture 52 is configured as a bolt, the bolt extending through the pull rod 33 and screw holes in the base wall 511 to secure the base 51 to the pull rod 33. 516) and the screw is engaged. In practical implementations, the number of fasteners 52 can be increased.

In this embodiment, the distance of the connecting wall 512 from the end 321 of the sunshade curtain 32 is such that the distance of the fastener 52 that is screwed with the base wall 511 from the end 321 of the sunshade curtain 32. Longer than street Alternatively, the distance of the connecting wall 512 from the end 321 of the sunshade curtain 32 is greater than the distance of the fastener 52 that is screwed with the base wall 511 from the end 321 of the sunshade curtain 32. It can be short. In addition, the base 51 may be disposed outside the pull rod 33 in other embodiments.

In use, the pull rod 33 can be pushed or pulled relative to the winding shaft 31. Thus, the sunshade curtain 32 can be retracted or extended relative to the winding shaft 31 between the winding position shown in FIG. 1 and the extended position shown in FIG. 5. After the sunshade assembly of the present invention has been assembled, the sunshade curtain 32 is in a wound position. When the sunshade curtain 32 needs to extend from the wound position shown in FIG. 1 to the extended position shown in FIG. 5, the pull rod 33 is pulled to drive the connecting shaft 41 and the pinion gears 42. To move away from the take-up shaft 31. The sunshade curtain 32 can be unwound so that it can extend between the guide rail units 1. When the sunshade curtain 32 needs to be retracted from the extended position shown in FIG. 5 to the wound position shown in FIG. 1, the pull rod 33 is pulled to drive the connecting rod 41 and the pinion gears 42. By moving toward the winding shaft 31, the sunshade curtain 32 is wound on the winding shaft 31.

During the movement of the sunshade curtain 32, the pinion gears 42 rotate with the connecting shaft 41 and move along the rack members 12. Even when the pulling force does not act on the central portion of the pull rod 33, since the connecting shaft 41 is connected to the pinion gears 42, the pinion gear 42 corresponding to each of the rack members 12 is matched. The interlocking mechanism therebetween ensures that each of the pinion gears 42 is stable and synchronized along the corresponding rack member 12 without swerving. Thus, the engagement mechanism ensures that the pull rod 33 moves smoothly and stably between the guide rail units 1 towards the winding shaft 31 or along the direction away from the winding shaft. The engagement mechanism may avoid the pulling rod 33 extending obliquely, which may result in being sandwiched or guided between the guide rail units 1. Thus, the sunshade curtain 32 can be smoothly wound or unwound between the wound position and the extended position when actuated.

Specifically, referring to FIGS. 1, 2 and 3, the connecting shaft 41 is inserted into the base 51 and in frictional contact with the base wall 511. After the fasteners 52 are screwed into the base walls 511, the connecting shaft 41 is clamped between the base walls 511. Thus, during the movement of the pull rod 33, the frictional resistance between the connecting shaft 41 and the base wall 511 must be overcome so that the connecting shaft 41 can be rotated simultaneously with the pinion gears 42. . When the sunshade curtain 32 is extended to any desired extension position by pulling the pull rod 33, the pull rod 33 stops with the sunshade curtain 32 in the desired extension position, because the winding shaft ( This is because the force of contraction of 31 is less than the frictional resistance between the connecting rod 41 and the base walls 511, so that the pulling and stopping functions can be performed relatively easily. Furthermore, referring to FIGS. 2 and 5, the engagement between the gear tooth 421 of each pinion gear 42 and the rack tooth 121 of the corresponding rack member 12 is dependent on the contraction of the winding shaft 31. The sun curtain 32 may be maintained in any desired extended position by generating a force that resists the force.

In summary, by means of the engagement design of each of the rack members 12 and the corresponding pinion gear 42, the connecting shaft 41 connected to the pinion gears 42 can move smoothly and the pinion gears 42 can move simultaneously. Rotation prevents pinion gears 42 from being fitted on rack members 12 because of the uncentered pull force. Thus, the sunshade curtain 32 can be smoothly shrunk and extended, enhancing user convenience. Moreover, depending on the design of the resistance unit 5, the sunshade curtain 32 can be pulled and stopped so that the pull rod 33 can be stopped as soon as the pulling or pushing force is released. The base 51 provides a resistance to the connecting shaft 41 so that it can be.

While the invention has been described in terms of what is considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments and is included within the spirit and scope of the broadest interpretation so as to encompass all modifications and equivalent configurations. It should be understood that it is intended to cover various configurations.

2. Mounting Unit 3. Sunshade Unit
4. Link Unit 5. Resistance Unit

Claims

Two spaced mounting sheets 21;
A winding shaft 31 rotatably mounted between the mounting sheets 21;
Sunshade curtain 32 wound around the winding shaft 31 so as to extend;
A pull rod (33) connected to one end of the sunshade curtain (32) at the distal end of the winding shaft (31);
Two guide rail units (1), each comprising a longitudinal rack member (12) extending in a direction crossing the winding shaft (31);
Is rotatably mounted to the pull rod 33 and attached to the connecting shaft 41 having two opposing ends 410 and 411 and the two opposing ends 410 and 411 of the connecting shaft 41, respectively. A link unit (4), comprising two pinion gears (42) engaged with the rack members (12) of the guide rail units (1); And
And a resistance unit (5) having a base (51) mounted on the pull rod (33) and providing a resistance to rotation of the connection shaft (41) by frictional contact with the connection shaft (41). Sunshade assembly.

The method of claim 1,
Each of the rack members 12 has a plurality of rack teeth 121, each of the pinion gears 42 has a plurality of gear teeth 421 engaged with the rack tooth 121, respectively, and the pinion gear (42) sunshade assembly, which rotates with the connecting shaft (41) and moves along the rack members (12).

The method of claim 1,
The base 51 has two spaced apart base walls 511 and a connecting wall 512, the connecting wall interconnecting the base walls 511 and opening in cooperation with the base walls 511. Forming a channel (513), said open channel (513) having an insertion portion (514) proximate said connecting wall (512) and an opening portion (515) at the distal end from said connecting wall (512).

The method of claim 3, wherein
The pull rod 33 is a hollow rod, the resistance unit 5 is disposed inside the hollow rod, and the resistance unit 5 pulls the base 51 to the pull rod 33. Is further provided with a fastener 52, which is configured as a bolt, which extends through the pull rod 33 and at ends distal from the connecting wall 512. Sunshade assembly with the base walls (511).