KR101223300B1

KR101223300B1 - Sun-visor for Vehicle

Info

Publication number: KR101223300B1
Application number: KR1020100090049A
Authority: KR
Inventors: 이규환; 구자용
Original assignee: 대성전기공업 주식회사
Priority date: 2010-09-14
Filing date: 2010-09-14
Publication date: 2013-01-16
Also published as: KR20120028069A

Abstract

The present invention relates to a sun visor for a vehicle, and is operated by pulling out and deploying it from a housing using a screen screen made of a flexible material disposed inside the housing, thereby eliminating the need to secure a rotational clearance around the pivot arm. It can be further miniaturized and mounted inside the vehicle, thereby reducing the limiting factors for the interior design of the vehicle, enabling more diverse interior design designs, and by easily adjusting the development of the screen curtain using a linkage device. It provides a vehicle sun visor that can improve the user's ease of operation and reduce the risk for driving safety.

Description

Sun-visor for Vehicle

The present invention relates to a sun visor for a vehicle. More specifically, by using a flexible screen membrane disposed inside the housing to operate by pulling it out from the housing, it is not necessary to secure a rotational clearance centering on the pivot arm, further miniaturizing the interior of the vehicle This reduces the limiting factors on the interior design of the vehicle, thereby enabling more diverse interior design designs, and allows the user to easily adjust the development of the screen screen using a linkage device, thereby improving user convenience. The present invention relates to a vehicle sun visor that can reduce the risk of driving safety.

The sun visor is provided in the upper roof of the driver's seat and the passenger seat and is a safe driving means for preventing the driver's view from being disturbed by the light irradiated through the front glass of the vehicle.

The general sun visor is rotatably installed in the front, rear, left and right directions around the pivot arm, and a manual operation method of allowing the user to directly hold the sun visor by hand and move it to a desired position is applied. In other words, in order to cover the sunlight, the user must directly hold the sun visor, and then lower the sun visor toward the vehicle glass, and subsequently rotate the sun visor according to the sunlight inflow angle. There was an inconvenience. In particular, when the user is a driver, it may be more problematic in that it threatens the safety of driving. Therefore, in recent years, an electric sun visor that can automatically operate the sun visor has been developed to solve such inconvenience of operation.

However, such a general sun visor according to the prior art is basically configured to rotate around the pivot arm mounted on the interior roof of the vehicle, so that the electric sun visor as well as the manual and the rotational free space of the vehicle There was a problem to be secured indoors. Therefore, since it is necessary to secure such a rotation free space, not only various designs of the vehicle interior design are limited, but also there is a problem that the narrow indoor roof space cannot be efficiently used.

The present invention has been invented to solve the problems of the prior art, and an object of the present invention is to operate in a manner that draws out from the housing by using a screen screen of a flexible material disposed inside the housing, so that the pivot arm Since it is not necessary to secure a space for rotation, the vehicle can be further miniaturized and mounted in the vehicle interior, thereby providing a sun visor for the vehicle that enables more various interior design designs by reducing the limiting factor for the vehicle interior design.

Another object of the present invention is to provide a sun visor for a vehicle that can easily adjust the deployment state of the screen membrane by using a link device, thereby improving the user's convenience of operation and reducing the risk for driving safety.

It is still another object of the present invention to provide a vehicle sun visor which can be operated more conveniently and safely by allowing the drive motor to operate the link device for adjusting the deployment state of the screen membrane electrically.

The present invention, the housing is mounted in the vehicle interior; A screen membrane disposed inside the housing to be deployed out of the housing; A fixed bar coupled to one end of the screen membrane; First and second link plates, one end of which is rotatably coupled to both ends of the fixing bar; And a transfer unit for symmetrically linearly moving the other ends of the first and second link plates symmetrically on the same straight line such that the other ends of the first and second link plates are adjacent to or separated from each other. The fixed bar is linearly moved in a direction perpendicular to the direction of linear movement of the other ends of the first and second link plates as the linear movement in the direction away from the screen provides a vehicle sun visor, characterized in that the screen film is developed.

At this time, the sun visor for the vehicle further includes a winding roller mounted inside the housing and the screen membrane is wound, wherein the screen membrane is formed of a flexible material to be wound or unwound on the winding roller according to the linear movement of the fixing bar. Can be.

In addition, both ends of the winding roller may be coupled to the torsion spring for applying a rotational elastic force to the winding roller in the direction in which the screen film is wound.

Meanwhile, first and second connection pins are coupled to the other ends of the first and second link plates, respectively, and the transfer unit guides the movement path so that the first and second connection pins move on the same straight line. part; And a transfer part for linearly moving the first and second connection pins in a direction proximate or away from each other along the guide part.

At this time, the guide portion is a guide frame disposed in parallel with the fixing bar; And a guide groove extending in a length direction on one side of the guide frame such that the first and second connection pins are slide-coupled, respectively.

The transfer unit may include first and second wire locking portions coupled to both ends of the guide frame, respectively; A driving roller rotatably coupled to a central portion of the guide frame; A first wire coupled to the first connecting pin starting from the first connecting pin and being wound around the driving roller and the first wire engaging portion; And a second wire starting from the second connection pin and coupled to the second connection pin again while being wound around the driving roller and the second wire engaging portion, wherein the first and second wires are connected to the driving roller. According to the rotation of the first and second connecting pins may be wound on the drive roller in the direction to pull the symmetrically to each other.

In addition, the transfer unit may be configured to further include a drive motor for rotationally driving the drive roller.

In addition, first and second winding guide grooves may be formed on the outer circumferential surface of the driving roller so as to be spaced apart from each other along the axial direction of the driving roller.

On the other hand, the other end of the first and second link plate is rotatably coupled to the first and second nut plate through which the screw hole is formed, the transfer unit is formed with threads in different directions on the outer peripheral surface, respectively It may be configured to include a rotary rod screwed to the screw holes of the first and second nut plate, respectively.

In this case, the transfer unit may be configured to further include a drive motor for rotationally driving the rotary rod.

According to the present invention, by using the screen screen of the flexible material disposed inside the housing to operate in a manner that draws out from the housing, it is not necessary to secure a rotational clearance centering on the pivot arm, further miniaturized the vehicle interior It can be mounted on, thereby reducing the limiting factors for the interior design of the vehicle has the effect of enabling a more versatile interior design design.

In addition, it is possible to easily adjust the development state of the screen screen using a link device, there is an effect that can improve the user's operation convenience and reduce the risk for the safety of driving.

In addition, by allowing the operation of the link device for adjusting the deployment state of the screen membrane to be electrically operated through the drive motor, there is an effect to enable more convenient and safe operation.

1 is a perspective view schematically showing the configuration of a sun visor for a vehicle according to an embodiment of the present invention;
Figure 2 is a front view schematically showing the configuration of a sun visor for a vehicle according to an embodiment of the present invention,
3 is a cross-sectional view schematically showing the configuration of a sun visor for a vehicle according to an embodiment of the present invention;
4 is an operating state diagram schematically showing an operating state of a vehicle sun visor according to an embodiment of the present invention;
5 is a conceptual diagram conceptually illustrating an operating principle of a transport unit of a vehicle sun visor according to an embodiment of the present invention;
6 is an enlarged perspective view illustrating a winding state of a driving roller and first and second wires of a transfer unit according to an embodiment of the present invention;
7 is a front view schematically showing the configuration of a vehicle sun visor according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a perspective view schematically showing the configuration of a vehicle sun visor according to an embodiment of the present invention, Figure 2 is a front view schematically showing the configuration of a vehicle sun visor according to an embodiment of the present invention, Figure 3 4 is a cross-sectional view schematically showing the configuration of a vehicle sun visor according to an embodiment of the present invention, Figure 4 is an operating state diagram schematically showing the operating state of the vehicle sun visor according to an embodiment of the present invention.

The vehicle sun visor according to an embodiment of the present invention is configured to operate in a slide manner that moves linearly in the vertical direction, and includes a housing 100, a screen membrane 200, a fixing bar 300, and first and second link plates. 410, 420 and the transfer unit 500.

The housing 100 is mounted on an interior roof of the vehicle and has a separate screen entry / exit hole 110 formed at the lower surface thereof so that the screen membrane 200 can be deployed to the outside or drawn in. In this case, the screen membrane 200 which is developed to the outside of the housing 100 through the screen entry and exit holes 110 may be formed to be developed in a vertical direction, or in a direction inclined in one direction according to a user's needs. It may be formed to be. The shape of the housing 100 may be formed differently according to the development direction of the screen membrane 200, and may be formed in various shapes in consideration of the vehicle interior space.

The screen membrane 200 is disposed inside the housing 100, which may be simply formed in a shape such as a cloth or a soft material and disposed in a manner of being wound by a separate winding roller 600, in contrast to the housing 100. It may be disposed in such a way to slide long in one direction therein. The fixing bar 300 is coupled to one end of the screen membrane 200.

One end of the first and second link plates 410 and 420 are rotatably coupled to both ends of the fixing bar 300 through the rotation pins T, respectively, and have the same shape as each other based on the center of the fixing bar 300. It is arranged symmetrically. In addition, first and second connection pins 411 and 421 may be penetrated through the thicknesses of the first and second link plates 410 and 420, respectively. The other end may be easily transferred by the transfer unit 500 described later.

The transfer unit 500 is configured to linearly move the other ends of the first and second link plates 410 and 420 symmetrically on the same straight line in a direction approaching or away from each other, and the other of the first and second link plates 410 and 420. A guide portion 500a for guiding a movement path of the first and second connection pins 411 and 421 such that the first and second connection pins 411 and 421 coupled to the end move on the same straight line, and the first and second connection pins. 411 and 421 may be configured to include a transfer part 500b for linearly moving in a direction approaching or away from each other along the guide part 500a.

In this case, the guide part 500a may include a guide frame 510 disposed in parallel with the fixing bar 300, and a guide groove 512 long formed in one side of the guide frame 510 in the longitudinal direction. The first and second connecting pins 411 and 421 are slide-coupled to the guide grooves 512 so as to slide along the guide grooves 512, respectively. Of course, the guide part 500a may be in the form of a rail that guides the movement paths of the first and second connection pins 411 and 421 and may be changed in various forms.

According to the structure, when the other ends of the first and second link plates 410 and 420, that is, the first and second connection pins 411 and 421 linearly move in a direction away from each other, the fixing bar 300 is configured to be the first and second. While moving linearly in the direction perpendicular to the linear movement direction of the connection pins (411, 421), it is moved downward based on the direction shown in Figs. At this time, the fixing bar 300 is moved downward through the screen entry and exit hole 110 of the housing 100, and thus the screen membrane 200, one end of which is coupled to the fixing bar 300, from the winding roller 600. It is unwound and unfolds downward.

Looking in more detail, one end of the first and second link plate (410,420) is rotatably coupled to the fixing bar 300 through the rotation pin (T), the other end of the first and second link plate (410,420) When the first and second connecting pins 411 and 421 linearly move in a direction parallel to the fixing bar 300 through the guide part 500a, the fixing bar 300 is connected to the first and second link plates 410 and 420. It moves in conjunction with the movement of. At this time, since the first and second link plates 410 and 420 are symmetrically formed in the same shape and the moving distances are also symmetrically moved, the fixing bar 300 moves linearly of the first and second connection pins 411 and 421. Linear movement in a direction perpendicular to the direction.

That is, as shown in (a) of FIG. 4, when the first and second connection pins 411 and 421 move in a direction close to each other, the fixing bar 300 moves upwards in association with the screen bar. 200 is wound around the winding roller 600 and drawn into the housing 100. In this state, as shown in FIGS. 4B and 4C, when the first and second connection pins 411 and 421 move in a direction away from each other by the transfer unit 500, the fixing bar 300 is In response to this movement, the screen membrane 200 is unwound from the take-up roller 600 and is downwardly developed out of the housing 100. In this case, the development range of the screen membrane 200 may be adjusted as necessary by adjusting the linear movement distance of the first and second connection pins 411 and 421 by the transfer unit 500. That is, as shown in (b) of FIG. 6, when the first and second connection pins 411 and 421 are moved in the direction away from each other, the screen membrane 200 is developed in a relatively small size. As shown in (c) of FIG. 3, the screen membrane 200 is developed to the maximum size when the first and second connection pins 411 and 421 are moved to the maximum in the direction away from each other. Therefore, it is possible to easily adjust the development range of the screen film 200 according to the angle of the sunlight flowing through the vehicle glass.

As such, the vehicle sun visor according to the exemplary embodiment of the present invention may be developed by drawing the screen membrane 200 out of the housing 100 through the operation of the transfer unit 500 or by introducing the screen membrane 200 into the housing 100. You can block the sun's rays that interfere with your vision. That is, the sun visor for a vehicle according to an embodiment of the present invention uses the screen membrane 200 of the flexible material disposed inside the housing 100, rather than rotating the pivot arm, unlike the prior art. 100 is operated in such a way as to withdraw it. Therefore, unlike the prior art, it is not necessary to secure a rotational clearance centering on the pivot arm, so that it can be further miniaturized and mounted in the vehicle interior, thereby reducing the limiting factors for the vehicle interior design and designing more diverse interior designs. Is possible.

On the other hand, the screen membrane 200 may be configured to be formed in a simple tent shape or a flexible material having a certain elasticity as described above to be wound inside the housing 100 or slide along a curved path. 1 and 3, the winding roller 600 is rotatably mounted in the housing 100 so that the screen membrane 200 may be wound. As the fixed bar 300 coupled to one end of the screen membrane 200 moves linearly, the screen membrane 200 may be configured to be wound or unwound on the winding roller 600.

In this case, when the screen membrane 200 is deployed outside the housing 100 according to the downward movement of the fixing bar 300, the screen membrane 200 may be smoothly released from the winding roller 600, but the screen membrane may be unrolled. When the 200 is drawn into the housing 100 according to the upward movement of the fixing bar 300, a separate driving means may be necessary so that the screen membrane 200 may be smoothly wound on the winding roller 600. . That is, when the screen membrane 200 is formed of a flexible material having a certain elastic strength, the screen membrane 200 is wound on the winding roller 600 by the elastic strength without a separate driving means when the screen membrane 200 moves upward. When the screen membrane 200 is formed in the form of a tent having no elastic strength, when the screen membrane 200 moves upward, the winding roller 600 may overlap or sag when the screen membrane 200 moves upward. May not be wound around smoothly. Accordingly, the torsion spring 610 that applies a rotational elastic force to the winding roller 600 as shown in FIG. 1 at both ends of the winding roller 600 for a smooth winding operation of the screen membrane 200 relative to the winding roller 600. This can be combined. At this time, the torsion spring 610 is configured to apply a rotational elastic force to the winding roller 600 in the direction in which the screen membrane 200 is wound on the winding roller 600.

According to this structure, since the rotational force acts on the winding roller 600 in the direction of winding the screen membrane 200 by the torsion spring 610, the transfer unit when the screen membrane 200 is drawn into the housing 100. In addition to the operating force by 500, the rotational force of the torsion spring 610 may additionally act to wind the screen membrane 200, thereby smoothly winding the screen membrane 200 to the winding roller 600. You can.

On the other hand, the transfer unit 500 for linearly moving the other ends of the first and second link plates 410 and 420 in order to deploy or draw the screen membrane 200 out of the housing 100 is as described above. Guide portion 500a for guiding the movement path of the first and second connection pins 411 and 421 coupled to the other ends of the second link plates 410 and 420, and a transfer part for linearly moving the first and second connection pins 411 and 421. The guide portion 500a may be configured of the guide frame 510 and the guide groove 512 formed in the guide frame 510 as described above.

In this case, the transfer part 500b includes the first and second wire locking parts 560 and 561, the driving roller 520, the first wire 530, and the second wire 540 as shown in FIGS. 1 and 2. ), And may further include a drive motor 550 for rotationally driving the drive roller 520.

The first and second wire locking portions 560 and 561 are coupled to both ends of the guide frame 510, respectively, and intermediate portions of the first wire 530 and the second wire 540 as shown in FIGS. 1 and 2. It may be formed in the form of a semi-circular column so that each can be supported. The first and second wire locking portions 560 and 561 are used for smooth movement and support of the first wire 530 and the second wire 540 which are moved by the driving roller 520. It is also possible in the form of a polygonal column with curved edges that can reduce friction due to wire movement. In addition, in order to smoothly move the first wire 530 and the second wire 540 may be in the form of a rotating roller (not shown), in which case the rotating roller is rotatably coupled to both ends of the guide frame 510 Should be.

The driving roller 520 is rotatably coupled to the center portion of the guide frame 510, and the first wire 530 is wound around the first roller 520 starting from the first connecting pin 411 and then caught in the first wire. It is supported to be wound in a state 560 and is configured to form a closed loop in the form of being coupled to the first connection pin 411 again, the second wire 540 has the same structure as the first wire 530 Starting from the second connecting pin 421 is wound on the drive roller 520 and then supported in a state wound around the second wire catching portion 561 is again coupled to the second connecting pin 421 Configured to form a loop.

According to this structure, when the driving roller 520 is driven to rotate, the first wire 530 and the second wire 540 move along the rotation direction of the driving roller 520, and the first wire 530 and As the second wire 540 moves, the first connection pin 411 and the second connection pin 421 respectively coupled to the first wire 530 and the second wire 540 move, and the first connection The pin 411 and the second connection pin 421 are guided to move linearly along the guide groove 512 of the guide frame 510.

In this case, the first wire 530 and the second wire 540 are driven to the driving roller 520 in a direction in which the first and second connecting pins 411 and 421 are symmetrically moved with each other according to the rotation of the driving roller 520. It is wound up. Therefore, when the driving roller 520 rotates in either direction, the first and second connection pins 411 and 421 move symmetrically in a direction closer to or farther from each other.

Next, the operation principle of the transfer unit 500b of the transfer unit 500 will be described in more detail with reference to FIGS. 5 and 6. FIG. 5 conceptually illustrates the operation principle of the transfer unit 500. As shown in FIG. 6, the movement state of the first wire 530 and the second wire 540 by the rotation of the driving roller 520 is illustrated, and FIG. 6 shows the driving roller 520 and the first and first movements of the transfer unit 500. 2 is a diagram schematically illustrating a winding state of the second wire 540, and a shape of the driving roller 520 and a winding direction of the first wire 530 and the second wire 540 wound on the driving roller 520 are enlarged. Shown.

As shown in FIGS. 5 and 6, the first wire 530 is wound from the first connecting pin 411 to the driving roller 520 in a counterclockwise direction and then through the first wire catching part 560. The second wire 540 is coupled to the first connecting pin 411 again in an intermediate supported state, and the second wire 540 is wound from the second connecting pin 421 to the driving roller 520 in a counterclockwise direction, and then the second wire is connected to the first connecting pin 411. It is coupled to the second connection pin 421 again while being intermediately supported through the locking portion 561.

As such, since the first wire 530 and the second wire 540 are equally coupled to the driving roller 520 in the counterclockwise direction, the driving roller 520 is half as shown in FIG. When rotated clockwise, the section 530a between the first wire 530 and the driving roller 520 is towed by the driving roller 520, so that the first connecting pin 411 is rotated. Is moved in a direction approaching the driving roller 520 as indicated by the thick arrow. At this time, the second wire 540 is also the section 540a between the second wire 540 and the driving roller 520 is towed by the driving roller 520, so that the second connecting pin 421 also has a thick arrow As shown, it moves in a direction approaching the driving roller 520. Therefore, when the driving roller 520 rotates in the counterclockwise direction, the first and second connection pins 411 and 421 are symmetrically moved in a direction close to each other by the first and second wires 540.

On the other hand, when the driving roller 520 is rotated in the clockwise direction as shown in (b) of FIG. 5, the first wire 530 is a section 530b between the first wire locking portion 560 and the driving roller 520. ) Is towed by the driving roller 520, so that the first connecting pin 411 is moved in a direction away from the driving roller 520, as indicated by the thick arrow. At this time, the second wire 540 also the section 540b between the second wire catching portion 561 and the driving roller 520 is towed by the driving roller 520, so that the second connecting pin 421 is also thick As indicated by the arrow, it moves in a direction away from the driving roller 520. Therefore, when the driving roller 520 rotates in the clockwise direction, the first and second connection pins 411 and 421 are pulled symmetrically in a direction away from each other by the first and second wires 540.

According to this principle, the first connecting pin 411 and the second connecting pin 421 are linearly moved symmetrically with each other. Therefore, when the user rotates the driving roller 520 in the clockwise direction, since the first and second connection pins 411 and 421 move away from each other, the fixing bar 300 moves downward and the screen membrane 200 moves. When the user is rotated outward from the housing 100 and the user rotates the driving roller 520 in the counterclockwise direction, since the first and second connection pins 411 and 421 move in a direction close to each other, the fixing bar 300 is provided. Moves upward and the screen membrane 200 is drawn into the housing 100.

In this case, a separate dial lever (not shown) coupled to the driving roller 520 may be disposed outside the housing 100 so that the driving roller 520 may be rotated. Since the deployment state of the screen membrane 200 can be easily adjusted only by the dial rotation operation, it is easy to use and prevents a safety accident during driving.

The vehicle sun visor according to an embodiment of the present invention may adjust the deployment state of the screen membrane 200 by a manual operation method through a separate dial lever as described above, but the driving roller 520 may be electrically operated for more convenient operation. It may be further provided with a separate drive motor 550 for rotationally driving. The drive motor 550 may be configured to operate through an operation switch (not shown) mounted at a specific location of the vehicle interior, and thus, the operation of the sun visor may be adjusted more easily by electric power.

Meanwhile, as described above, the first and second wires 540 are simultaneously wound on one driving roller 520, and according to the structure, the first and second wires 540 are wound on the driving rollers 520. Since the first and second wires 530 and 540 are spaced apart from each other on the outer circumferential surface of the driving roller 520 as shown in FIG. First and second winding guide grooves 521 and 522 for guiding to be wound may be formed in the circumferential direction, respectively. The first and second winding guide grooves 521 and 522 may be spaced apart from each other along the axial direction of the driving roller 520.

7 is a front view schematically showing the configuration of a vehicle sun visor according to another embodiment of the present invention.

In the vehicle sun visor according to another embodiment of the present invention, as shown in FIG. 7, first and second nuts having threaded holes 416 and 426 penetrated through the other ends of the first and second link plates 410 and 420, respectively. The plates 415 and 425 are rotatably coupled to each other, and the transfer unit 500 includes a rotation rod 570 that is simultaneously coupled to the screw holes 416 and 426 of the first and second nut plates 415 and 425.

Rotating rod 570 is disposed in parallel with the fixing bar 300 and the thread (S1, S2) of the different direction is formed on the outer peripheral surface, the screw hole 416 and the second nut plate of the first nut plate 415 The screw hole 426 of the 425 is configured to be screwed through each of the different threads (S1, S2).

Accordingly, when the rotary rod 570 is rotated about the axial direction, the first and second nut plates 415 and 425 respectively screwed to the different threads S1 and S2 have different directions along different screw directions. It moves along the rotary rod 570. That is, according to the rotation direction of the rotary rod 570 is moved in a direction close to or far from each other.

According to this operating principle, the other ends of the first and second link plates 410 and 420 move in a direction close to or away from each other. As a result, the fixing bar 300 moves up and down and the screen membrane 200 moves to the housing 100. It is developed outward or drawn in.

At this time, by installing a separate drive motor 580 capable of rotationally driving the rotary rod 570 can be electrically controlled to deploy the screen membrane 200, otherwise the rotation rod 570 can be rotated operation It may be equipped with a separate dial lever (not shown).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: housing 200: screen membrane
300: fixed bar 410: first link plate
411: first connecting pin 420: second link plate
421: second connecting pin 500: transfer unit
500a: guide part 500b: transfer part
510: guide frame 512: guide groove
520: driving roller 530: first wire
540: second wire 560: first wire engaging portion
561: second wire engaging portion 600: winding roller

Claims

A housing mounted inside the vehicle interior; A screen membrane disposed inside the housing to be deployed out of the housing; A fixed bar coupled to one end of the screen membrane; First and second link plates, one end of which is rotatably coupled to both ends of the fixing bar; And a transfer unit for symmetrically linearly moving the other ends of the first and second link plates symmetrically on the same straight line such that the other ends of the first and second link plates are adjacent to or separated from each other. As the linear movement in the direction away from the fixed bar is moved linearly in a direction perpendicular to the direction of linear movement of the other ends of the first and second link plate, the screen film is developed,
First and second connection pins are coupled to the other ends of the first and second link plates, respectively, and the transfer unit guides the movement path so that the first and second connection pins move on the same straight line. ; And a transfer part for linearly moving the first and second connection pins in a direction proximate or away from each other along the guide part.
The guide unit, a guide frame disposed in parallel with the fixing bar; And a guide groove extending in a longitudinal direction on one side of the guide frame such that the first and second connection pins are slide-coupled, respectively.

The method of claim 1,
And a winding roller mounted inside the housing and wound around the screen membrane, wherein the screen membrane is formed of a flexible material to be wound or unwound on the winding roller according to a linear movement of the fixing bar. .

The method of claim 2,
Both ends of the winding roller is a vehicle sun visor, characterized in that the torsion spring for applying a rotational elastic force to the winding roller in the direction in which the screen film is wound.

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The method of claim 1,
The conveying portion
First and second wire catching portions respectively coupled to both ends of the guide frame;
A driving roller rotatably coupled to a central portion of the guide frame;
A first wire coupled to the first connecting pin starting from the first connecting pin and being wound around the driving roller and the first wire engaging portion; And
A second wire coupled to the second connecting pin starting from the second connecting pin and wound around the driving roller and the second wire engaging portion;
And the first and second wires are wound on the drive rollers in a direction in which the first and second connection pins are pulled symmetrically with each other according to the rotation of the drive rollers.

The method according to claim 6,
The conveying portion
And a drive motor for rotationally driving the drive roller.

The method according to claim 6,
A vehicle sun visor, on the outer circumferential surface of the driving roller, first and second winding guide grooves for guiding the first and second wires to be spaced apart from each other are formed to be spaced apart from each other along an axial direction of the driving roller. .

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