JP7131993B2 - Roll screen and its assembly method - Google Patents

Description

The present invention provides a roll screen provided with a light leakage prevention member for closing a gap between both side portions of a head box attached to an upper frame portion of a rectangular window frame and the both side frame portions of the window frame; The present invention relates to a method of assembling this roll screen to a window frame.

Conventionally, a screen having an outer edge, a winding pipe for winding and delivering the screen, a guide rail for guiding the outer edge delivered from the winding pipe in a guiding direction, and a curved surface along the circumferential direction of the winding pipe. and two guiding surfaces each facing each other and along the guiding direction (for example, Patent Document 1 (claim 1, paragraphs [0017], [0020] , [0024] to [0026], see FIGS. 1 to 4).). In this roll screen, a winding pipe is rotatably supported by a rail base and housed in a roll case. This roll case includes a frame extending in the left-right direction, a left side bracket provided at the left end of the frame, a right side bracket provided at the right end of the frame, and a left base cap extending from the left side bracket to the left guide rail. , and a right base cap extending from the right side bracket to the right guide rail. A light shielding cushion mounting portion is provided on the mounting surface of the frame at a position that does not interfere with the mounting bracket that engages with the bracket mounting portion, and the light shielding cushion is mounted to the light shielding cushion mounting portion. Further, the light shielding cushion is made of a member having elasticity similar to that of the damper, and its tip is provided so as to protrude upward from the mounting bracket toward the frame.

In the roll screen configured as described above, when the roll case is attached to the frame via the mounting bracket, the tip of the light shielding cushion is elastically deformed while being in contact with the frame. Seal the gap between the mounting surface. As a result, sunlight is prevented from entering the interior from the outdoors through a gap created between the frame and the frame by the mounting bracket between the roll case and the frame.

JP 2016-205011 A

However, in the conventional roll screen shown in Patent Document 1, although the gap between the roll case and the upper frame can be blocked by the light shielding cushion, a gap is generated between the roll screen and the left and right frames. As a result, light leaks through this gap, so cushion rubber or the like is pushed in to prevent the light from leaking. In addition, in paragraph [0064] of the specification of the conventional patent document 1, the frame, the left and right side brackets, and the left and right base caps may be laminated with other materials on their surfaces, and the lamination may be performed by pasting, painting, It is described that it may be performed by vapor deposition or the like. However, when the left and right side brackets and the left and right base caps are laminated as described above, although the gap between the roll case and the left and right frames becomes smaller, it is difficult to completely block the gap, and light leaks through this gap. there was a case.

A first object of the present invention is to add a light leakage prevention member, which has a relatively simple shape, without inserting cushion rubber or the like into the gap between the side frame portions of the window frame and the side portions of the head box. To provide a roll screen capable of surely closing the gap. A second object of the present invention is to ensure that the gaps are secured by an extremely simple operation without the troublesome work of pushing cushion rubber or the like into the gaps between the side frame portions of the window frame and the side portions of the head box. To provide a method for assembling a roll screen capable of being closed. A third object of the present invention is to provide a roll screen and a method for assembling the roll screen, which enables easy alignment of the light leakage prevention member when the light leakage prevention member is attached to the back surface of the head box. That's what it is. A fourth object of the present invention is to ensure that light can be transmitted from both sides of the headbox regardless of whether the support plate of the headbox is made of a metal plate body and a plastic cover or made of plastic. To provide a roll screen and its assembling method capable of preventing light passing through extremely small gaps from leaking while being reflected on the surface of a plastic part.

A first aspect of the present invention, as shown in FIGS. a winding pipe 13, a screen 14 wound on the winding pipe 13 so as to be let out, and both sides of the screen 14 attached to both side frame portions 11b, 11b of the window frame 11 and let out from the winding pipe 13. In the roll screen 10 provided with a pair of guide rails 16, 16 for guiding the head box 12, a light leakage prevention member 19 is attached to the back surface of the head box 12, and the light leakage prevention member 19 is formed of a plastic plate or a metal plate. a holding plate 19a attached to the rear surface of the head box 12; and a side cushion member 19b that can be in close contact with the inner surface of the holding plate 19a. and

A second aspect of the present invention is an invention based on the first aspect, and further, as shown in FIGS. A cover-type set bar 12a attached to the portion 11a, and a pair of support plates 12d, 12d attached to both sides of the cover-type set bar 12a and rotatably supporting both ends of the winding pipe 13. The support plates 12d, 12d are formed by covering the outer surface of the metal support plate with a plastic covering member, or are formed only of plastic, and the holding plate 19a is formed of an opaque plastic plate or metal plate, and The width of the support plate 12d is larger than that of the support plate 12d.

A third aspect of the present invention is, as shown in FIGS. 1, 3 and 4, a head box 12 in which a winding pipe 13 with a screen 14 is rotatably accommodated is attached to the upper frame portion of the window frame 11. 11a, a step of attaching a pair of guide rails 16, 16 for guiding both sides of the screen 14 drawn out from the winding pipe 13 to both side frame portions 11b, 11b of the window frame 11, a step of attaching a plastic plate or a metal A roll screen 10 including a step of adhering a light leakage prevention member 19 having a holding plate 19a formed of a plate and a side cushion member 19b fitted to the tip edge of the holding plate 19a to both sides of the back surface of the head box 12. When the light leakage prevention member 19 is attached to both sides of the back surface of the head box 12, the side cushion member 19b is pressed against the inner surface of the side frame portion 11b of the window frame 11 to adhere to the side cushion. A feature of the member 19b is that the member 19b is affixed with a double-faced adhesive tape or an adhesive over both surfaces of the tip end surface of the holding plate 19a and the vicinity of the tip end connected to the tip end surface.

A fourth aspect of the present invention is an invention based on the third aspect, and as shown in FIGS. 1 to 4, a head box is provided extending in the longitudinal direction of the upper frame portion. A cover-type set bar to be attached, and a pair of support plates attached to both sides of the cover-type set bar to rotatably support both ends of the winding pipe, wherein the pair of support plates are metal support plates. The outer surface of the support plate is covered with a plastic covering member or is formed only of plastic, and the holding plate is formed of an opaque plastic plate or metal plate and has a width larger than that of the support plate. and

In the roll screen according to the first aspect of the present invention, when the head box is attached to the upper frame part of the window frame, a gap is generated between the both side parts of the head box and the both side frame parts of the window frame. When the holding plate is attached to the rear surface of the head box while the tip surface of the side cushion member of the member is in close contact with the inner surface of the side frame portion of the window frame, the gap is closed by the side cushion member. As a result, compared to conventional roll screens, which take the trouble of pushing a cushion rubber or the like into the gap and increase the number of assembly man-hours, the present invention eliminates the need to push the cushion rubber or the like into the gap, and the By adding a component having a relatively simple shape, such as a leak prevention member, the gap can be reliably closed. In addition, since the side cushion member is fitted to the edge of the holding plate of the light leakage blocking member, that is, the side cushion member covers both the front end surface of the holding plate and the vicinity of the front end connected to the front end surface, light When the light leakage prevention member is attached to the rear surface of the head box while being pressed against the side frame, the light leakage prevention member is not attached to an unintended position of the head box, and the light leakage prevention member can be easily aligned. It can be carried out.

When the support plate of the headbox is formed by covering the outer surface of a metal support plate with a plastic covering member, or is formed of plastic, if the plastic portion is translucent, light cannot pass through the plastic portion. If there is an extremely small gap, there is a risk that the light that has passed through this extremely small gap will be transmitted while being reflected on the surface of the plastic portion and leak.
Therefore, in the roll screen according to the second aspect of the present invention or the method for assembling the roll screen according to the fourth aspect of the present invention, the holding plate is formed of an opaque plastic plate or metal plate, and the width thereof is the width of the supporting plate. Since it is formed larger, the holding plate of the light leakage prevention member blocks the light that tries to pass through the translucent plastic part and the light that tries to enter the extremely small gap. As a result, it is possible to reliably prevent the light from passing through the translucent plastic portion, and to reliably prevent the light from passing through extremely small gaps and reflecting on the surface of the plastic portion to propagate and leak.

In the method of assembling the roll screen according to the third aspect of the present invention, when the head box is attached to the upper frame of the window frame, gaps are generated between the both sides of the head box and the both sides of the window frame. Since the side cushion members are pressed against the inner surfaces of the side frame portions of the window frame when the light leakage blocking member is attached to both sides of the back surface of the head box, the gap is closed by the side cushion members. As a result, in comparison with conventional roll screens in which the number of man-hours required for assembly increases due to the trouble of pushing the cushion rubber or the like into the gap, in the present invention, the troublesome work of pushing the cushion rubber or the like into the gap is performed. Therefore, the gap can be reliably closed by an extremely simple operation. In addition, since the side cushion member is fitted to the edge of the holding plate of the light leakage blocking member, that is, the side cushion member covers both the front end surface of the holding plate and the vicinity of the front end connected to the front end surface, light When the light leakage prevention member is attached to the rear surface of the head box while being pressed against the side frame, the light leakage prevention member is not attached to an unintended position of the head box, and the light leakage prevention member can be easily aligned. It can be carried out.

FIG. 7 is a cross-sectional view taken along the line AA of FIG. 6, showing a state where the light leakage prevention member is attached to the roll screen of the embodiment of the present invention; FIG. 2 is a cross-sectional view corresponding to FIG. 1 showing a state before the light leakage prevention member is attached to the roll screen; (a) is a perspective view of the main part showing a state before the light leakage prevention member is attached to the head box of the roll screen, and (b) is a main part showing the state after the light leakage prevention member is attached to the head box. It is a perspective view. 2. (a) is a cross-sectional view taken along the line BB of FIG. 2, and (b) is a cross-sectional view taken along the line CC of FIG. FIG. 7 is a cross-sectional view taken along line DD of FIG. 6; FIG. 6 is a cross-sectional view taken along line EE of FIG. 5;

Next, the form for implementing this invention is demonstrated based on drawing. As shown in FIGS. 1 and 5, the roll screen 10 includes a head box 12 attached to an upper frame portion 11a of a rectangular window frame 11, and a winding pipe 13 rotatably accommodated in the head box 12. , a screen 14 to be reeled out from the winding pipe 13, and a pair of guide rails 16, 16 attached to both side frame portions 11b, 11b of the window frame 11, respectively. In this embodiment, the head box 12 includes a cover type set bar 12a extending in the longitudinal direction of the upper frame portion 11b and formed in an angle by integrally molding a top plate 12b and a rear plate 12c. It has a pair of support plates 12d, 12d attached to both sides of the set bar 12a, respectively, and a front cover body 12e for closing the front surface of the cover type set bar 12 (FIGS. 3 to 5). The cover-type set bar 12a is formed by covering the outer surface of a metal set bar such as an aluminum alloy with a plastic covering member such as ABS (Acrylonitrile Butadiene Styrene) or vinyl chloride, or made of ABS, vinyl chloride, or the like. Made entirely of plastic. The top plate 12b of the cover-type set bar 12a is attached to the lower surface of the upper frame portion 11a with screws (not shown).

A pair of support plates 12d, 12d rotatably support both ends of the winding pipe 13, and are attached to both ends of the cover-type set bar 12a with screws 12f (FIGS. 2, 3, and 6). In this embodiment, the support plate 12d is formed by covering the outer surface of a metal support plate made of aluminum alloy or the like with a plastic covering member such as ABS or polycarbonate, although not shown in the drawings. It is made only of plastic such as polycarbonate. Furthermore, an upper cushion member 17 extending in the longitudinal direction of the head box 12 is attached to substantially the center of the upper surface of the head box 12 (FIG. 4). The upper cushion member 17 is made of elastically deformable foamed rubber.

The pair of guide rails 16, 16 are each formed to have a substantially U-shaped cross section, and are attached to the inner surfaces of both side frame portions 11b, 11b of the window frame 11 with screws (not shown), respectively (FIGS. 1, 2 and 3). Figure 6). A rail cushion member (not shown) is preferably interposed between the pair of guide rails 16 , 16 and both side frame portions 11 b , 11 b of the window frame 11 . Further, the guide rail 16 is formed by covering the outer surface of a metal guide rail such as an aluminum alloy with a plastic covering member such as ABS or vinyl chloride, or is formed only of plastic. Further, the pair of guide rails 16, 16 have the function of guiding both sides of the screen 14 fed out from the winding pipe 13 so as to move along the pair of guide rails 16, 16. As shown in FIG. A bottom rail 18 is attached to the lower end of the screen 14, and both sides of the bottom rail 18 are configured to be movable along a pair of guide rails 16,16.

The front cover body is formed by covering the outer surface of a metal cover body such as an aluminum alloy with a plastic covering member such as ABS or vinyl chloride, or is formed only of plastic (FIGS. 4 and 5). . Also, an opening (not shown) through which the screen passes is formed in the lower surface of the headbox.

On the other hand, a pair of light leakage blocking members 19 are attached to both sides of the rear surface of the head box 12 (FIGS. 1, 3, 4 and 6). The light leakage blocking member 19 has a holding plate 19a formed of a plastic plate or a metal plate, and a side cushion member 19b fitted to the tip edge of the holding plate 19a. In this embodiment, the holding plate 19a is formed in a rectangular shape by a plate made of plastic such as opaque polypropylene or vinyl chloride or a plate made of metal such as aluminum alloy. Further, the width of the holding plate 19a is formed larger than the width of the support plate 12d. The height of the holding plate 19a is the same as the height of the back plate 12c of the head box 12 or slightly higher than the height of the back plate 12c. Furthermore, although not shown, one of the two surfaces of the holding plate 19a is affixed with a double-sided adhesive tape or coated with an adhesive.

The side cushion member 19b is made of elastically deformable foamed rubber in this embodiment (FIGS. 1, 3, 4 and 6). Also, the side cushion member 19b is attached to the holding plate 19a so as to cover the edge of the holding plate 19a. Specifically, the side cushion member 19b is attached to the tip surface of the holding plate 19a and both surfaces in the vicinity of the tip connected to the tip surface with a double-sided adhesive tape or an adhesive. Further, the side cushion member 19b projects toward the side frame portion 11b of the window frame 11, and its tip surface is configured to be able to come into close contact with the inner surface of the side frame portion 11b.

On the other hand, the winding pipe 13 incorporates a winding spring (not shown) that stores a biasing force for rotating the winding pipe 13 in the direction in which the screen 14 is wound onto the winding pipe 13 (see FIG. 1, Figures 2 and 5). An operating chain 21 is provided at one end of the winding pipe 13 to be operated to extend or wind the screen 14 (FIGS. 5 and 6). Further, a rotation transmission switching device (not shown) is provided between the operating chain 21 and the winding pipe 13 . This rotation transmission switching device can operate the winding pipe 13 only when the operation chain 21 is operated to let out the screen 14, and prevents the rotation of the winding pipe 13 in the direction in which the screen 14 is gripped and let out. It has the function to

A method of assembling the roll screen 10 configured in this way will be described. The top plate 12b of the head box 12, which has been temporarily assembled in advance at the factory, is attached to the upper frame portion 11a of the window frame 11 with screws. At this time, the gap between the upper surface of the head box 12 and the upper frame portion 11a of the window frame 11 is closed by the upper cushion member 17, so that the upper surface of the head box 12 and the upper frame portion 11a of the window frame 11 are closed. There are gaps 22, 22 (FIGS. 2 and 4) between both side surfaces of the head box 12 and both side frame portions 11b, 11b of the window frame 11, although no light leakage occurs therebetween. 22 is leaking light. Next, a pair of guide rails 16, 16 are attached to both side frame portions 11b, 11b of the window frame 11, respectively. At this time, since the gap between the pair of guide rails 16, 16 and the both side frame portions 11b, 11b of the window frame 11 is closed by the rail cushion member, both sides of the pair of guide rails 16, 16 and the window frame 11 are closed. Light leakage does not occur between the frame portions 11b and 11b. Next, after the winding pipe 13 around which the screen 14 is wound is incorporated into the headbox 12, the front cover body 12e of the headbox 12 is attached to the front surface of the cover-type set bar 12a.

Furthermore, the side cushion member 19b of one of the pair of light leakage blocking members 19, 19 is pressed against the inner surface of one side frame portion 11b of the window frame 11 to closely contact the light leakage blocking member 19 in this state. After the holding plate 19a of the member 19 is adhered to the back plate 12c of the head box 12, the side cushion member 19b of the other light leakage blocking member 19 is pressed against the inner surface of the other side frame portion 11b of the window frame 11 so as to be closely attached. 1, 3(b), 4(b) and 6). As a result, the gaps 22, 22 between both side surfaces of the head box 12 and the side frame portions 11b, 11b of the window frame 11 are closed by the pair of light leakage prevention members 19, 19, respectively. As a result, the gaps 22, 22 (FIGS. 2 and 4) can be reliably closed by the extremely simple work described above, without the troublesome work of pushing cushion rubber or the like into the gaps 22, 22. can. In addition, since the side cushion member 19b is fitted to the leading edge of the holding plate 19a of the light leakage blocking member 19, the side cushion member 19b covers the leading end surface of the holding plate 19a and both surfaces in the vicinity of the leading end connected to the leading end surface. Therefore, when the light leakage prevention member 19 is attached to the back plate 12c of the head box 12 while being pressed against the side frame portion 11b of the window frame 11, the light leakage prevention member 19 is attached to an unintended position of the head box 12. Therefore, the light leakage prevention member 19 can be easily aligned.

On the other hand, in this embodiment, the support plate 12d of the headbox 12 is formed by covering the outer surface of a metal support plate with a plastic covering member, or is formed from plastic, so the plastic portion is half. If it is transparent, light may pass through the plastic part, and if there is an extremely small gap, the light that passes through this extremely small gap may leak while being reflected on the surface of the plastic part. be. Furthermore, if the light leakage prevention member is hard, a very small gap may be generated between the light leakage prevention member and the side frame of the window frame, and light may leak through this very small gap. However, since the holding plate 19a is made of an opaque plastic plate or metal plate and its width is made larger than the width of the supporting plate, the holding plate 19a of the light leakage blocking member 19 makes it possible to transmit through the translucent plastic portion. light that penetrates or tries to enter an extremely small gap is blocked. Further, since the side cushion member 19b fitted to the holding plate 19a of the light leakage prevention member 19 is formed so as to be in close contact with the inner surface of the side frame portion 11b of the window frame 11, the side cushion member 19b is positioned on the window frame 11 side. Light leakage through an extremely small gap with the frame portion 11b is blocked. As a result, it is possible to reliably prevent the light from passing through the translucent plastic portion, and to reliably prevent the light from passing through extremely small gaps and reflecting on the surface of the plastic portion to propagate and leak.

In the above embodiment, the support plate is formed of the metal plate body and the plastic cover body covering the outer surface of the metal plate body, or is formed only of plastic. You may form only with metals, such as an alloy. In the above embodiment, the side cushion member is made of elastically deformable foamed rubber, but the side cushion member may be made of a soft fin member with flexibility, a soft sheet with flexibility, or raised (on one side). It may be formed from a sheet or the like to which the fibers are fluffed.

REFERENCE SIGNS LIST 10 roll screen 11 window frame 11a upper frame portion 11b side frame portion 12 winding pipe 12a cover type set bar 12d support plate 13 winding pipe 14 screen 16 guide rail 19 light leakage prevention member 19a holding plate 19b side cushion member

Claims (4)

A head box attached to an upper frame portion of a rectangular window frame, a winding pipe rotatably accommodated in the head box, a screen rewound on the winding pipe, and both sides of the window frame. A roll screen comprising a pair of guide rails each attached to a frame and guiding both sides of the screen unwound from the winding pipe,
A light leakage prevention member is attached to the back surface of the head box,
The light leakage prevention member includes a holding plate that is formed of a plastic plate or a metal plate and is attached to the rear surface of the head box, and a tip end edge of the holding plate that is fitted to project toward the side frame portion of the window frame. and a side cushion member whose tip surface can be brought into close contact with the inner surface of the side frame portion of the window frame, and the side cushion member is double-sided adhesive over both surfaces of the tip surface of the holding plate and the vicinity of the tip connected to the tip surface. A roll screen characterized by being attached with a tape or an adhesive . The head box includes a cover-type set bar that extends in the longitudinal direction of the upper frame and is attached to the upper frame, and both sides of the cover-type set bar that rotate both ends of the winding pipe. and a pair of support plates for supporting the
The pair of support plates are formed by covering the outer surface of the metal support plate with a plastic covering member, or are formed only of plastic,
2. A roll screen according to claim 1, wherein said holding plate is made of an opaque plastic plate or metal plate and has a width larger than that of said supporting plate. a step of attaching a headbox in which a winding pipe with a screen wound thereon is rotatably accommodated to the upper frame portion of the window frame;
a step of attaching a pair of guide rails for guiding both side portions of the screen drawn out from the winding pipe to both side frame portions of the window frame;
a step of attaching light leakage prevention members having a holding plate formed of a plastic plate or a metal plate and side cushion members fitted to the leading edge of the holding plate to both sides of the rear surface of the head box. A method for assembling the
When the light leakage prevention member is attached to both sides of the back surface of the head box, the side cushion member is pressed against the inner surface of the side frame portion of the window frame to be in close contact with the side cushion member. A method of assembling a roll screen, characterized in that the roll screen is affixed with a double-faced adhesive tape or an adhesive over both surfaces of the surface and the vicinity of the tip connected to the tip surface . The head box includes a cover-type set bar that extends in the longitudinal direction of the upper frame and is attached to the upper frame, and both sides of the cover-type set bar that rotate both ends of the winding pipe. and a pair of support plates for supporting the
The pair of support plates are formed by covering the outer surface of the metal support plate with a plastic covering member, or are formed only from plastic,
4. The method of assembling a roll screen according to claim 3 , wherein said holding plate is made of an opaque plastic plate or metal plate and has a width larger than that of said supporting plate.

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