KR102647702B1 - Sunshade device - Google Patents

Abstract

According to one aspect of the present invention, it is possible to provide a sunshade device that can effectively maintain the tension of the sunshade.

Description

Sunshade device {Sunshade device}

The present invention relates to a sunshade device, and more specifically, to a sunshade device that can effectively maintain the tension of the sunshade.

Sunshade devices are installed on windows to block light from outside and not expose the interior to the outside. These sunshade devices are installed on various types of windows, such as vertical windows, horizontal windows, and slanted windows, to block light. They can also be installed on inclined or horizontal surfaces to function as roofs, and can also be installed on entrances, etc. to function as shutters. .

Figure 1 is an exploded perspective view schematically showing an example of a conventional sunshade device. As shown in FIG. 1, the sunshade device 1 includes a sunshade spool 10 on which the sunshade 11 is wound, an end frame 12 disposed at the other end of the sunshade 11, and both ends of the sunshade 11. Guide rails (30a, 30b) arranged to support the sunshade, pulley members (21a, 21b, 22a, 22b) provided to rotate within the guide rails (30a, 30b), and guide rails (30a, 30b) It includes belt members (23a, 23b) that are internally supported and rotated by pulley members (21a, 21b, 22a, 22b). The fixing members (24a, 24b) are fixed to the belt members (23a, 23b) and are provided to move together with the belt members (23a, 23b), and both ends of the end frame 12 are formed on the fixing members (24a, 24b). It is coupled to the fixtures 24a' and 24b', so that the amount of movement of the end frame 12 can be adjusted by the fixtures 24a and 24b when the belt members 23a and 23b are moved. Since the end frame 12 is provided to move together with the fixing members 24a and 24b connected to the belt members 23a and 23b, the amount of movement on both sides of the end frame 12 can be uniformly adjusted, and accordingly, the sunshade Even if an external force acts on the sunshade device (1) by maintaining an appropriate tension in (11), the sunshade (11) can be prevented from being separated from the guide rails (30a, 30b).

Meanwhile, the demand for large-sized sunshades has recently increased rapidly due to aesthetic or practical factors, but the configuration of pulleys and belts applied to conventional sunshade devices is not enough to maintain appropriate tension or maintain appropriate tension for sunshades of a size that meets the demand. It is known that there is a clear technical limitation in effectively reducing the movement distance deviation at both ends. Therefore, there is a need for research and development on an effective method that can not only effectively maintain tension even for large-sized sunshades, but also effectively reduce the deviation of the moving distance at both ends of the sunshade.

One aspect of the present invention is to provide a sunshade device that can effectively maintain the tension of the sunshade.

One aspect of the present invention is to provide a sunshade device that can effectively control the movement distance deviation of the sunshade.

The object of the present invention is not limited to the above-described content. Anyone skilled in the art to which the present invention pertains will have no difficulty in easily understanding the additional problems of the present invention from the overall contents of this specification.

A sunshade device according to one aspect of the present invention includes a sunshade spool provided to be rotatable; A sunshade membrane, one end of which is connected to the sunshade membrane spool, is provided to be unfolded or wound as the sunshade membrane spool rotates; An end frame connected to the other end of the sunshade in a shape extending along the width direction of the sunshade and provided to move with the sunshade between a first position where the sunshade is rolled and a second position where the sunshade is unfolded; Belt members extending along the longitudinal direction of the sunshade from both end sides of the sunshade and rotatably provided; Pulley members disposed at one end and the other end of the belt member respectively to support the belt member and be rotatable; and a pressing unit that is fixed to the belt member and moves with the belt member, and is connected to a side end of the end frame to press the end frame toward the second position.

The pressing unit may be provided to provide a greater pressing force to the end frame at the first position compared to the second position.

The pressing unit may be provided so that the pressing force provided by the pressing unit to the end frame gradually increases from the second position toward the first position.

The pressing unit includes a body frame in which a coupling groove in which the belt member is disposed is recessed along the longitudinal direction; a fixing frame provided to be fixed to the body frame at one side of the body frame where the coupling groove is formed, and fixing the body frame to the belt member by pressing the belt member disposed in the coupling groove; a moving frame provided on the body frame so as to slide along the longitudinal direction of the body frame, coupled to one end of the end frame and moving together with the end frame; and an elastic member disposed inside the body frame and pressing the movable frame toward the second position by elastic force.

The coupling groove is recessed from the upper surface of the body frame, and the fixing frame can be fixed to the body frame by a fastener that penetrates the fixing frame and is fastened to the body frame.

The upper and lower ends of the front end of the body frame are respectively provided with sliding grooves recessed along the longitudinal direction of the body frame, and the mobile frame is provided with a sliding protrusion protruding in a shape corresponding to the sliding groove, and the sliding groove By arranging the sliding protrusion, the slide movement of the moving frame can be guided.

A fixing groove is recessed at a side end of the end frame, and a thin fixing protrusion corresponding to the fixing groove is protruding from the end frame. The fixing protrusion is inserted into the fixing groove, so that the movable frame and the end frame are can be combined with each other.

An accommodating space having an opening facing forward is provided inside the body frame, and the elastic member may be disposed inside the accommodating space.

The elastic member is a pneumatic spring, and the pneumatic spring includes: a first housing to which two or more first turn rollers are axially coupled to allow rotation; a second housing to which two or more second turn rollers are rotatably coupled, and arranged to be movable along the longitudinal direction of the body frame at a position spaced apart from the first housing; a pneumatic cylinder provided with one end and the other end connected to the first housing and the second housing to provide resistance to axial pressure; and a wire that is sequentially connected to the first turn roller and the second turn roller and whose ends are connected to the moving frame.

The elastic member is a compression coil spring, and the moving frame is provided in a shape that protrudes toward the receiving space and may include a support bar disposed to support one end of the compression coil spring.

According to one aspect of the present invention, it is possible to provide a sunshade device that can effectively maintain the tension of the sunshade.

According to one aspect of the present invention, it is possible to provide a sunshade device capable of effectively controlling the movement distance deviation of the sunshade.

The effect of the present invention is not limited to the above-mentioned matters, and may include matters that can be reasonably inferred from the description below by a person skilled in the art to which the invention pertains.

Figure 1 is an exploded perspective view schematically showing an example of a conventional sunshade device.
Figure 2 is a perspective view schematically showing a sunshade device according to one aspect of the present invention.
Figure 3 is an exploded perspective view schematically showing a sunshade device according to one aspect of the present invention.
Figure 4 is a perspective view schematically showing a pressurizing unit fixed to a belt member.
Figure 5 is an exploded perspective view schematically showing the coupling relationship between the belt member and the pressing unit and the coupling relationship between the body frame and the moving frame.
Figure 6 is an exploded perspective view schematically showing an elastic member according to an embodiment.
Figure 7 is an exploded perspective view showing a pressurizing unit to which an elastic member of another embodiment is applied.

Hereinafter, preferred embodiments of the sunshade device according to one aspect of the present invention will be described in more detail with reference to the attached drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as limited to the embodiments described below. These embodiments are provided to explain the present invention in more detail to those skilled in the art. Accordingly, the shape of each element shown in the drawings may be emphasized or exaggerated for clearer explanation.

Hereinafter, the sunshade device according to one aspect of the present invention will be described in more detail.

Figure 2 is a perspective view schematically showing a sunshade device according to one aspect of the present invention, and Figure 3 is an exploded perspective view schematically showing a sunshade device according to one aspect of the present invention.

As shown in Figures 2 and 3, the sunshade device 100 according to one aspect of the present invention includes a sunshade spool 110 that is rotatable, a sunshade 111 with one end connected to the sunshade spool 110, and a sunshade It may include guide rails (130a, 130b) disposed on both end sides of (111) to assist in moving and fixing the sunshade (111). The drive motor (not shown) may be placed inside the sunshade spool 110 or outside the sunshade spool 110, and as the drive motor (not shown) drives, the sunshade spool 110 rotates to form the sunshade spool 111. It may be unwound from the sunshade spool 110 or wound around the sunshade spool 110. 2 and 3 show a structure in which the sunshade spool 110 and the first pulleys 121a and 121b are directly connected, but the structure is not necessarily limited to this, and the axis of the first pulleys 121a and 121b and the sunshade spool ( 110) is preferably interpreted as a concept that also includes a structure in which the rotational force of the sunshade spool 110 is transmitted to the first pulleys 121a and 121b through axial coupling or an auxiliary roller (not shown). Meanwhile, Figures 2 and 3 show a horizontal sunshade device in which the sunshade 111 moves in the horizontal direction, but the sunshade device 100 of the present invention is not necessarily limited thereto, and the sunshade device 100 of the present invention Can be applied to inclined and vertical sunshade devices without particular restrictions.

An end frame 112 having a shape extending along the width direction of the sunshade 111 is connected to the end of the sunshade 111, and the end frame 112 is combined with a pressurizing unit 220 to be described later to form the sunshade 111. Can assist with movement. Hereinafter, for convenience of explanation, in normal use of the sunshade device 100, the position of the end frame 112 when the sunshade 111 is completely wound around the sunshade spool 110 is referred to as the first position (A). In normal use of the sunshade device 100, the position of the end frame 112 when the sunshade 111 is completely unwound from the sunshade spool 110 is referred to as the second position (B). That is, the first position (A) and the second position (B) are in a normal use of the sunshade device 100, in a state in which the sunshade 111 is maximally open and in a state in which the sunshade 111 is maximally closed. It can be interpreted to mean the position of the end frame 112.

Inside the end sides of the guide rails (130a, 130b), first pulleys (121a, 121b) and second pulleys (122a, 122b) each having a rotation axis are disposed, and the belt members (123a, 123b) are provided with a sunshade (111). It is provided in a shape extending along the longitudinal direction and may be arranged to rotate while being supported by the first pulleys 121a and 121b and the second pulleys 122a and 122b. The belt members (123a, 123b) may be an endless track type timing belt, but are not necessarily limited thereto, and the inner peripheral surface of the belt members (123a, 123b) and the first pulley (121a, 121b) and the second pulley (122a, 122b) Teeth of corresponding shapes may be formed on the outer peripheral surface of .

The pressurizing units (200a, 200b) may be fixed to the belt members (123a, 123b) and may be provided to move together with the belt members (123a, 123b) as the belt members (123a, 123b) move. Meanwhile, the pressing units 200a and 200b may be provided to continuously pressurize the end frame 112 toward the second position (B). Additionally, the pressing units (220a, 200b) may be provided to provide a greater pressing force to the end frame 112 at the first position (A) compared to the second position (B), and the pressing force from the second position (B) may be provided. The pressing force applied to the end frame 112 toward position 1 (A) may be provided to gradually increase. As the sunshade 111 becomes larger, the width of the sunshade 111 becomes inseparably wider, so a deviation in the amount of movement at both ends of the sunshade 111 inevitably occurs in the process of opening and closing the sunshade 111. The sunshade device 100 according to one aspect of the present invention allows the sunshade 111 to be opened and closed in an environment where the pressurizing unit 200 continuously pressurizes the end frame 112 toward the second position (B), so the sunshade (111) is 111) The movement amount deviation at both ends can be minimized. In addition, as the sunshade 111 becomes larger, the length of the sunshade 111 wound around the sunshade spool 110 becomes longer, so the sunshade 111 wound around the sunshade spool 110 depends on the degree of opening and closing of the sunshade 111. The amount varies significantly. That is, even if the sunshade spool 110 rotates at the same rotation speed, the moving speed of the sunshade 111 changes depending on the degree of opening and closing of the sunshade 111, while the end frame fixed to the belt members 123a and 123b ( When 112) moves at a constant speed, uneven tension is inevitably applied to the sunshade 111. The pressurizing unit 200 provided in the sunshade device 100 according to one aspect of the present invention increases the pressing force applied to the end frame 112 in inverse proportion to the separation distance between the end frame 112 and the sunshade spool 110. It is possible to minimize the deviation between the moving speed of the sunshade membrane 111 near the sunshade membrane spool 110 and the movement speed of the sunshade membrane 111 at a location spaced apart from the sunshade membrane spool 110, and the movement speed deviation of the sunshade membrane 111 It is possible to effectively improve the non-uniform tension phenomenon of the sunshade membrane 111 caused by.

Figure 4 is a perspective view schematically showing the pressing unit fixed to the belt member, Figure 5 is an exploded perspective view schematically showing the coupling relationship between the belt member and the pressing unit and the body frame and the moving frame, and Figure 6 is This is an exploded perspective view schematically showing an elastic member according to an embodiment.

As shown in FIGS. 4 to 6, the pressing unit 200 includes a body frame 210, a fixed frame 220 coupled to one side of the body frame 210, and a body frame 210 on the body frame 210. An elastic force is disposed in the receiving space 214 formed inside the moving frame 230 and the body frame 210, which is provided to slide along the longitudinal direction, to press the moving frame 230 toward the second position (B). It may include an elastic member 240 that provides. A coupling groove 211 in which the belt member 123 is disposed may be recessed along the longitudinal direction of the body frame 210 on the upper side of the body frame 210, and a belt member 123 may be formed on the lower side of the coupling groove 211. ) may be provided with teeth of a shape corresponding to the inner peripheral surface. The fixing frame 220 may be provided to be coupled to the body frame 210 on one side of the body frame 210 where the coupling groove 211 is formed, and the belt member 123 is disposed in the coupling groove 211. The pressing unit 200 can be fixed to the belt member 123 by interconnecting the body frame 210 and the fixing frame 220. Fastening holes and fastening grooves for screw fastening may be formed at corresponding positions of the body frame 210 and the fixed frame 220, and the screw member 222 passes through these fastening holes and is fastened to the fastening groove. The fixed frame 220 may be firmly coupled to the body frame 210. In Figure 5, a screw member 222 is shown as a means for fastening the body frame 210 and the fixed frame 220, but the fastening means of the present invention is not necessarily limited thereto, and the body frame 210 and the fixed frame 220 are shown in Figure 5. (220) Any fastening means that can firmly secure each other can be applied without limitation.

The movable frame 230 may be disposed at the front end of the body frame 210 and moved along the longitudinal direction of the body frame 210. The upper and lower ends of the front end of the body frame 210 are provided with sliding grooves 213a and 213b that extend along the longitudinal direction of the body frame 210 and are recessed, respectively, and the moving frame 230 has sliding grooves 213a and 213b. ) are provided at positions corresponding to the sliding grooves (213a, 213b) and sliding protrusions (232a, 232b) protruding in shapes corresponding to the sliding grooves (213a, 213b), and the sliding protrusions (232a, 232b) are arranged and moved in the sliding grooves (213a, 213b). By guiding the moving direction of the frame 230, the moving frame 230 can slide and move along the longitudinal direction of the body frame 210. The front end of the movable frame 230 is provided with a fixing protrusion 231 that protrudes toward the front, and a fixing groove 113 has a shape corresponding to the fixing protrusion 231 at both ends of the end frame 112. Each of these depressions can be formed. By inserting and fixing the fixing protrusion 231 into the fixing groove 113, the moving frame 230 and the end frame 112 can be firmly coupled to each other. Meanwhile, in the above, the means for combining the moving frame 230 and the end frame 112 will be described by taking the fixing protrusion 231 formed on the moving frame 230 and the fixing groove 113 formed on the end frame 112 as an example. However, the coupling means of the moving frame 230 and the end frame 112 in the present invention is not necessarily limited to this, and the coupling means of the moving frame 230 and the end frame 112 in the present invention can be modified in various ways. and can be implemented.

Inside the body frame 210, a receiving space 214 having an opening toward the front may be formed, and an elastic force may be applied within the receiving space 214 to press the moving frame 230 toward the second position (B). An elastic member 240 may be disposed.

As shown in FIGS. 5 and 6, the elastic member applied to the present invention may be a pneumatic spring 240. The pneumatic spring 240 is a first housing 242 that is axially coupled to allow two or more first turn rollers (241a, 241b) to rotate, and a first housing 242 that is axially coupled to allow two or more second turn rollers (243a, 243b) to rotate. 2 housing 244, a pneumatic cylinder 245 whose one end and the other end are respectively connected to the first housing 242 and the second housing 244 spaced apart from each other, first turn rollers 241a, 241b, and a second turn roller It may include a wire 246 that is sequentially connected to (243a, 243b) and connected to the moving frame 230.

The number of first turn rollers (241a, 241b) and second turn rollers (243a, 243b) is not particularly limited, and factors such as the size of the sunshade 111 and the installation location of the sunshade device 100 are comprehensively considered. The number of first turn rollers 241a and 241b and second turn rollers 243a and 243b may be determined. The first housing 242 is provided to be fixed inside the receiving space 214, while the second housing 244 is provided to be movable inside the receiving space 214 along the longitudinal direction of the receiving space 214. It can be. Although not shown in the drawing, on the inner side of the receiving space 214 where the second housing 244 is disposed, a guide groove is provided to prevent the second housing 244 from moving along the longitudinal direction of the receiving space 214. It may be formed along the longitudinal direction of the second housing 244, and a guide protrusion of a shape corresponding to the guide groove may be formed on the outer surface of the second housing 244 and placed in the guide groove.

An internal space with an open front side may be formed in the first housing 242, and a through hole 242a and a fastening groove 242b may be formed through the upper and lower ends of the first housing 242, respectively. The first turn rollers 241a and 241b are disposed in the internal space formed in the first housing 242, and the first screw shaft 247 with a thread is formed in the through hole 242a at the top of the first housing 242. ) and through the through holes 241a' and 241b' formed in the first turn rollers 241a and 241b, and may be arranged to be fastened to the fastening groove 242b formed at the bottom of the first housing 242. An internal space with an open front side may be formed in the second housing 244, and a through hole 244a and a fastening groove 244b may be formed through the upper and lower ends of the second housing 244, respectively. The second turn rollers 243a and 243b are disposed in the internal space formed in the second housing 244, and the second screw shaft 248 with a thread is formed in the through hole 244a at the top of the second housing 244. ) and through the through holes 243a' and 243b' formed in the second turn rollers 243a and 243b, and may be arranged to be fastened to the fastening groove 244b formed at the bottom of the second housing 244. The first turn rollers (241a, 241b) and the second turn rollers (243a, 243b) are connected to the first screw shaft 247 and the second screw shaft inside the first housing 242 and the second housing 244. It may be provided to rotate around (248) as an axis.

First fastening grooves 242c and second fastening grooves 244c each having threads may be recessed or formed through pneumatic pressure on one side of the first housing 242 and one side of the second housing 244, which are opposite to each other. The first fastener 245a and the second fastener 245b formed at one end and the other end of the cylinder 245, respectively, can be inserted and fixed into the first fastening groove 242c and the second fastening groove 244c and screwed together. there is. In addition, first wire holes 242d to 242g and second wire holes 244d are disposed through a wire 246 on one side of the first housing 242 and one side of the second housing 244, which are opposite to each other. ~244g) may be formed through, and the wire 246 may be arranged to sequentially penetrate these wire holes (242d~242g, 244d~244g). In FIG. 6, the reference numerals of the second wire holes (244d to 244g) are not all shown, but the reference numerals of the second wire holes (244d to 244g) are opposite to the first wire holes (242d to 242g). It is preferable to interpret it as referring to wire holes formed at a location. As an example, one end of the wire 246 is "first wire hole (242f) → first lower turn roller (241b) → first wire hole (242g) → second wire hole (244f) → second lower side. Turn roller (243b) → 2nd wire hole (244g) → 1st wire hole (242d) → upper side 1st turn roller (241a) → 1st wire hole (242e) → 2nd wire hole (244d) → upper side It may be provided to be fixed through the wire hole 233 formed in the moving frame 230 after sequentially passing through the second turn roller (243a) → second wire hole (244e), and the wire 246 The other end may be knotted and fixed to the middle portion of the wire 246 discharged through the first wire hole 242g.

The pneumatic cylinder 245 provides pressure so that the first housing 242 and the second housing 244 are spaced apart from each other, so that when assembling the sunshade device 100 of the present invention, the second housing 233 is connected to the first housing ( 242), the connection work between the end frame 112 and the moving frame 230 can be performed in a state in which the pneumatic cylinder 245 is somewhat compressed. That is, even when the end frame 112 is moved to the second position (B), the second housing 244 provides the pressurizing unit 200 to maintain the pneumatic cylinder 245 compressed to a certain level, so that the sunshade film When using the device 100, an environment can be created in which the pressurizing unit 200 continuously pressurizes the end frame 112. On the other hand, when the end frame 112 is located at the first position (A), the first housing 242 and the second housing 244 are lower than when the end frame 112 is located at the second position (B). The separation distance becomes narrower (the pneumatic cylinder 245 is further pressurized), and accordingly, the end frame 112 is positioned at the first position (B) compared to the case where the end frame 112 is positioned at the second position (B). When located at A), the pressing unit 200 can provide a greater pressing force to the end frame 112.

Meanwhile, the elastic member of the present invention is not limited to the pneumatic spring 240 shown in FIGS. 4 to 6, and can be applied in various ways as long as it is a means capable of providing an appropriate elastic force. That is, as shown in Figure 7, the elastic member of the present invention can not only be a compression coil spring 240', but also continuously provide a pressing force in the second direction (B) with respect to the end frame 112. Any means that can provide a greater pressing force to the end frame 112 at the first position (A) than at the second position (A) can be applied without limitation. When the compression coil spring 240' is applied as an elastic member as shown in Figure 7, a moving frame 230' provided with a support bar 234' protruding toward the rear may be applied, and the compression coil spring ( By arranging the support bar 234' in close contact with one end of the 240'), the pressing force provided by the compression coil spring 240' can be transmitted through the moving frame 230'.

As described above, the sunshade device 100 according to one aspect of the present invention is not only capable of continuously pressing the end frame 112 toward the second position (B), but also provides an appropriate pressing force depending on the degree of loosening of the sunshade 111. Since the possible pressurizing unit 200 is provided, not only can the tension of the sunshade 111 be effectively maintained, but also the movement distance deviation on both sides of the sunshade 111 can be effectively adjusted.

Although the present invention has been described in detail through examples above, other forms of embodiments are also possible. Therefore, the technical spirit and scope of the claims set forth below are not limited to the embodiments.

1, 100: Sunshade device 10, 110: Sunshade spool
11, 111: sunshade 21, 121: first pulley
22, 122: second pulley 23, 123: belt member
30, 130: Guide rail 200: Pressurizing unit

Claims (10)

A sunshade spool provided that can be rotated;
A sunshade membrane, one end of which is connected to the sunshade membrane spool, is provided to be unfolded or wound as the sunshade membrane spool rotates;
An end frame connected to the other end of the sunshade in a shape extending along the width direction of the sunshade and provided to move with the sunshade between a first position where the sunshade is rolled and a second position where the sunshade is unfolded;
Belt members extending along the longitudinal direction of the sunshade from both end sides of the sunshade and rotatably provided;
Pulley members disposed at one end and the other end of the belt member respectively to support the belt member and be rotatable; and
A pressing unit is fixed to the belt member and moves together with the belt member, and is connected to a side end of the end frame and provided to press the end frame toward the second position,
The pressing unit is provided to provide a greater pressing force to the end frame at the first position compared to the second position, a sunshade device. delete According to paragraph 1,
The pressing unit is provided so that the pressing force provided by the pressing unit to the end frame gradually increases from the second position toward the first position. A sunshade spool provided that can be rotated;
A sunshade membrane, one end of which is connected to the sunshade membrane spool, is provided to be unfolded or wound as the sunshade membrane spool rotates;
An end frame connected to the other end of the sunshade in a shape extending along the width direction of the sunshade and provided to move with the sunshade between a first position where the sunshade is wound and a second position where the sunshade is unfolded;
Belt members extending along the longitudinal direction of the sunshade from both end sides of the sunshade and rotatably provided;
Pulley members disposed at one end and the other end of the belt member respectively to support the belt member and be rotatable; and
A pressing unit is fixed to the belt member and moves together with the belt member, and is connected to a side end of the end frame and provided to press the end frame toward the second position,
The pressurizing unit is,
a body frame in which a coupling groove in which the belt member is disposed is recessed along the longitudinal direction;
a fixing frame provided to be fixed to the body frame at one side of the body frame where the coupling groove is formed, and fixing the body frame to the belt member by pressing the belt member disposed in the coupling groove;
a moving frame provided on the body frame so as to slide along the longitudinal direction of the body frame, coupled to one end of the end frame and moving together with the end frame; and
A sunshade device that is disposed inside the body frame and includes an elastic member that presses the movable frame toward the second position by elastic force. According to clause 4,
The coupling groove is recessed from the upper surface of the body frame,
A sunshade device in which the fixed frame is fixed to the body frame by a fastener that penetrates the fixed frame and is fastened to the body frame. According to paragraph 4,
The upper and lower ends of the front end of the body frame are respectively provided with sliding grooves recessed along the longitudinal direction of the body frame,
The moving frame has a sliding protrusion protruding in a shape corresponding to the sliding groove,
A sunshade device in which the sliding movement of the moving frame is guided by the sliding protrusion being disposed in the sliding groove. According to paragraph 4,
A fixing groove is recessed at the side end of the end frame,
A thin fixing protrusion corresponding to the fixing groove is formed to protrude from the end frame,
A sunshade device in which the fixing protrusion is inserted into the fixing groove and the moving frame and the end frame are coupled to each other. According to clause 4,
Inside the body frame, a receiving space is provided with an opening facing forward,
The elastic member is a sunshade device disposed inside the receiving space. According to clause 8,
The elastic member is a pneumatic spring,
The pneumatic spring is,
A first housing to which two or more first turn rollers are axially coupled to enable rotation;
a second housing to which two or more second turn rollers are rotatably coupled, and to be movable along the direction of movement of the body frame at a position spaced apart from the first housing;
a pneumatic cylinder provided with one end and the other end connected to the first housing and the second housing to provide resistance to axial pressure; and
A sunshade device comprising a wire that is sequentially connected to the first turn roller and the second turn roller and whose ends are connected to the moving frame. According to clause 8,
The elastic member is a compression coil spring,
The movable frame is provided in a shape that protrudes toward the receiving space and includes a support bar disposed to support one end of the compression coil spring.

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