JP2022138003A - screen device - Google Patents

Abstract

To provide a screen device preventing a twisting on a screen.SOLUTION: A screen device comprises a flexible sheet-like screen, a bottom bar provided along a width direction of the screen at a lower end of the screen, an end cap provided at both ends in the width direction of the bottom bar and holding the screen in the state where the screen projects in the width direction, a shaft body which the screen winds and is wound in a dispensable way and a rail which is provided at an interval in the width direction and to which both ends in the width direction of the screen are engaged and guided, and each of the end cap has a compression part compressing the screen in an off-plate direction.SELECTED DRAWING: Figure 4

Description

The present invention relates to a screen device.

Conventionally, a screen is provided with a screen box attached to the upper part of a building opening, and a screen having one end attached to a winding shaft rotatably supported in the box is wound around the winding shaft in a detachable manner. A winding device is known (see Patent Document 1, for example). This screen winding device is provided with a bottom bar at the leading end (lower end) of the drawn screen. Engagement members are attached to the screen along the left and right edges. The engaging member has a large number of engaging elements that engage with the inner edge of the slit of the inner rail along one side edge of a tape made of cloth or synthetic resin. to prevent slack in the width direction when stretched.

JP-A-8-199946

In the screen winding device as described above, the screen is pulled by the weight of the bottom bar, and is structured so as not to be twisted. However, when the width of the screen is wider than the length of the bottom bar, there is a portion at the lower end of the screen that protrudes in the width direction beyond the bottom bar. Since the weight of the bottom bar does not act on the part of the screen that protrudes from the bottom bar, the screen tends to be twisted. More specifically, at the lower end of the screen, since the tension that pulls the screen does not act around the corners that are both ends in the width direction, the lower end is loosened so that it moves upward, and the screen is more loose than the bottom bar of the screen. The movement of the widthwise end of the upper portion toward the center may cause twisting.

If the screen is twisted at the lower end, when the screen is rolled up, the engaging elements provided at the lower end of the screen may be positioned above the inner rails and come off the inner rails. There is If the screen is pulled down while the engaging elements are disengaged from the inner rails, the engaging elements will not engage with the inner rails and the screen will be disengaged from the inner rails over almost the entire length.
SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to provide a screen device that is less likely to cause problems due to the screen.

The main invention for achieving this object is a flexible sheet-shaped screen, a bottom bar provided at the lower end of the screen along the width direction of the screen, and both ends of the bottom bar in the width direction. an end cap that is provided in the part and holds the screen in a state in which the screen protrudes in the width direction; each of the end caps has a pressing portion that presses the screen in an out-of-plane direction. The screen device is characterized by:
Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the screen apparatus which is hard to be caused by a screen.

It is a longitudinal section showing a screen device concerning this embodiment. It is a cross-sectional view showing a screen device according to the present embodiment. It is an enlarged view of the A section in FIG. FIG. 3 is an enlarged view of a B portion in FIG. 2; It is a perspective view which shows the attachment structure of a bottom bar. FIG. 11 illustrates the placement of the end caps; 7(a) is a perspective view of the end cap viewed from the rail side, and FIG. 7(b) is a perspective view of the end cap viewed from the center side of the screen. FIG. 4 is a side view of the end cap viewed from the center side of the screen;

A screen device according to an embodiment of the present invention will be described below with reference to the drawings.
The screen device 1 of the present embodiment is provided together with fittings 2 that are attached to a building and form a window, for example, as shown in FIGS. 1 and 2 .

In this embodiment, the screen device 1 provided on the indoor side of the fittings 2 is wound around the shaft 3, the screen 4 having flexibility and having a sheet-like net material is wound, and , a so-called roll screen device 1 which is provided so as to be extended will be described as an example. The screen 4 is not limited to a mesh material, and may be a sheet-like member that can be wound around the shaft 3 and can be wound up and unwound.

In the following description, when the roll screen device 1 attached to a building or the like is viewed from the indoor side, the up-down direction is the up-down direction, the width direction of the screen is the left-right direction, and the indoor/outdoor direction is the horizontal direction. The depth direction, which is the direction, is shown as the prospective direction. Even if it is each part of the roll screen device 1, or even if each member constituting the roll screen device 1 is in a single state, the roll screen device 1 is attached. A direction will be specified and explained in terms of a direction or the like.

The fitting 2 has a frame body 2a forming an opening and a shoji 2b provided to open and close the opening. The roll screen device 1 comprises a roll screen device main body 5 in which a screen 4 arranged on the upper part of a frame 2a and wound around a shaft 3 is accommodated, and a roll screen device body 5 which constitutes the frame 2a and is spaced apart in the width direction of the screen 4. Rails 6 are respectively provided along the left and right vertical frames 2c arranged in parallel to each other and guide the screen 4 that is pulled out and moved up and down.

As shown in FIGS. 3 and 4, the screen 4 is provided along a net-like screen body 40 covering substantially the entire area between the left and right rails 6, and along the left and right ends and the lower end of the screen body 40. and an engaging portion 42 provided on the edge of the end member. The end member 41 and the engaging portion 42 are, for example, members corresponding to one of two members joined to each other by sliding a slider in a slide fastener. That is, along one side edge of an end member 41 made of a strip-shaped sheet material such as a fastener tape, a plurality of engaging portions 42 formed to have a width wider than the thickness of the fastener tape are provided. It is

The end members 41 each having a plurality of engaging portions 42 are welded to both end portions and a lower end portion of the screen body 40 in the width direction in a state in which the edge portions having the engaging portions 42 protrude from the screen body 40 . . Note that the end member 41 and the engaging portion 42 are not limited to the fastener tape and the element.

At the lower end of the screen 4, a bottom bar 7 made of an extruded member made of synthetic resin or aluminum is provided along the lower end of the screen 4. At both ends of the bottom bar 7 in the longitudinal direction, edges of the bottom bar 7 are provided. are each provided with an end cap 8 covering the .

The bottom bar 7 has a bottom bar main body portion 70 having a hollow portion 7a penetrating along the longitudinal direction, and two wall portions 71 and 72 provided on the upper side of the bottom bar main body portion 70 and facing each other with a gap therebetween in the viewing direction. is doing. Between the two walls 71 and 72, a fitting portion 7b into which the lower end holding member 9 that holds the lower end of the screen 4 is fitted is provided over the entire length.

The fitting portion 7b has a groove shape which is recessed downward along the longitudinal direction and is open upward. A wall portion 71 on the indoor side forming the fitting portion 7b is provided with a bottom bar locking piece 7c for locking the lower end holding member 9 inserted into the fitting portion 7b from above.

The lower end holding member 9 is an extruded member having a substantially U-shaped vertical cross-section taken along the projection direction. More specifically, the lower end holding member 9 includes a pair of facing wall portions 9a that face each other in the prospective direction, a curved surface connecting portion 9b that connects the lower ends of the pair of facing wall portions 9a with a curved surface, and a pair of facing wall portions 9a. It has a lower end holding member protruding piece 9c protruding to each facing side, and a lower end holding member locked portion 9d provided at the upper end of the indoor facing wall portion 9a and locked to the bottom bar locking piece 7c. is doing.

The lower end holding member protruding piece 9c is provided at a spaced position above the curved surface connecting portion 9b, and the protruding tip portions are opposed to each other with a slight spacing, and a slit is provided between the opposing tip portions. 9e are formed. The width of the slit 9e is wider than the thickness of the end member 41 of the screen 4 and narrower than the width of the engaging portion 42. As shown in FIG. In the lower end holding member 9, the upper space and the lower space of the lower end holding member protruding piece 9c are communicated by the slit 9e, and the end member 41 provided at the lower end of the screen 4 is positioned in the slit 9e. The lower end holding member 9 is attached to the lower end of the screen 4 by arranging the engaging portion 42 in the space below the lower end holding member projecting piece 9c.

The lower end holding member 9 is longer than the bottom bar 7, and both ends protrude from both ends of the bottom bar 7, respectively, as shown in FIG. The width of the screen 4 is wider than the length of the lower end holding member 9 , and both ends of the lower end of the screen 4 in the width direction protrude from both ends of the lower end holding member 9 .

As shown in FIGS. 6 and 7, the left and right end caps 8 have shapes in which the left and right sides are reversed to each other. Here, the end cap 8 fitted to the left side of the bottom bar 7 will be described as an example.

The end cap 8 includes a cap main body 80 that abuts on the edge of the bottom bar 7 and a cap fitting part 81 that protrudes from the lower portion of the cap main body 80 toward the bottom bar 7 and is inserted into the hollow portion 7 a of the bottom bar 7 . , and two guide pieces 82 projecting from the cap main body 80 on the side opposite to the bottom bar 7 .

The cap body portion 80 includes a lower cap portion 80a from which a cap fitting portion 81 protrudes, two cap wall portions 80b erected on the lower cap portion 80a with an interval in the prospective direction, and a cap side wall portion 80c forming a prospective surface between the ends of the two cap wall portions 80b opposite to the cap fitting portion 81. As shown in FIG.

Above the lower cap portion 80a, between the two cap wall portions 80b, a lower end holding member inserting portion protruding from both ends in the longitudinal direction of the lower end holding member 9 fitted to the bottom bar 7 is inserted. A portion 8a is provided.

In the cap side wall portion 80c, the screen 4 fitted to the lower end holding member 9 when the lower end holding member 9 is inserted into the lower end holding member insertion portion 8a protrudes laterally from the lower end holding member 9. A recessed portion 80d is provided through which the portion is inserted in the width direction of the screen 4 . That is, the lower end of the screen 4 is held by the bottom bar 7 and the end cap 8 via the lower end holding member 9 . The concave portion 80d is provided so as to be depressed downward, and is provided at a position connected to the space between the pair of facing wall portions 9a of the lower end holding member 9 inserted into the lower end holding member insertion portion 8a.

Further, the cap side wall portion 80c extends upward at a portion closer to the indoor side than the recessed portion 80d, and the extended upper end portion is provided with a cap projecting portion 80e that projects to the outdoor side. The outdoor-side surface 80f of the cap projecting portion 80e has an inclination such that the projecting amount in the viewing direction decreases from the center side (right side in FIG. 4) in the width direction of the screen 4 to the end side (left side in FIG. 4). is doing.

When the cap fitting portion 81 is fitted into the hollow portion 7a of the bottom bar 7, the cap projecting portion 80e faces and contacts both the screen body 40 and the end member 41 as shown in FIG. . That is, it is arranged so as to straddle the screen main body 40 and the end member 41 and abut against them.

In addition, the cap protrusion 80e is positioned above the upper end of the bottom bar 7, and the outdoor end of the cap protrusion 80e is positioned above the recess 80d or on the outdoor side of the recess 80d. . Therefore, when the lower end holding member 9 attached to the lower end of the screen 4 is fitted to the bottom bar 7, the cap projecting portion 80e presses the screen 4 from the indoor side toward the outdoor side in the viewing direction. It is

Both ends in the width direction of the lower end of the screen 4 are pressed against the cap projections 80 e provided on the two end caps 8 fitted to the ends of the bottom bar 7 , thereby stretching the screen 4 . is brought about, and the occurrence of twisting is suppressed. Here, the cap projecting portion 80e corresponds to a pressing portion that is provided on the end cap and presses the screen in the out-of-plane direction.

As shown in FIG. 4, the rails 6 provided along the left and right vertical frames 2c of the fittings 2 are screen end accommodating hollow portions that accommodate the widthwise ends of the screen 4 and communicate with each other in the vertical direction. and a bottom bar guide portion 6b for guiding a guide piece 82 of the end cap 8 fitted to the bottom bar 7 provided at the lower end of the screen 4 .

The screen end accommodating portion 6a is provided in the center in the projection direction, and forms a hollow portion. A slit 6d is provided. The width of the slit 6d is wider than the thickness of the end member 41 of the screen 4 and narrower than the width of the engaging portion 42. As shown in FIG. The screen 4 is arranged such that the end members 41 provided at both ends in the width direction are positioned in the slits 6d, and the engaging portions 42 are positioned in the hollow portion.

The bottom bar guide portion 6b is provided between the screen end accommodation portion 6a and the opposing pieces 6e that face the indoor side and the outdoor side of the screen end accommodation portion 6a with a gap therebetween. Two guide pieces 82 provided on each end cap 8 are respectively inserted into these grooves, and the bottom bar 7 moves up and down while being guided.

According to the roll screen device 1 of the present embodiment, the cap protrusions 80e of the end caps 8 fitted to both ends of the bottom bar 7 provided at the lower end of the screen 4 face both ends of the screen 4 in the width direction. Since the screen 4 is pressed outward, the stretched state of the screen 4 is maintained even at the lower end of the screen 4 . Therefore, the screen 4 is less likely to be twisted.

In addition, since the screen 4 is less likely to be twisted, the end portion of the screen 4 in the width direction on the upper side of the bottom bar 7 is less likely to shift toward the center as in the case of the twist. Therefore, since the lower ends of the portions of the screen 4 projecting to both ends in the width direction are less likely to rise above the rails 6 , the engaging portions 42 at the lower ends of the screen 4 are engaged with the screen end accommodating portions 6 a of the rails 6 . The combined state is maintained, and even if the screen 4 is rolled up, it is possible to prevent the lower end of the screen 4 from slipping out of the rails 6. - 特許庁Since the lower end of the screen 4 is engaged with the screen end accommodating portion 6a of the rail 6 even when the screen 4 is rolled up, even when the screen 4 is extended, both ends of the screen 4 in the width direction can be secured. is guided by the rail 6.

In addition, at both ends of the screen 4, there are boundary portions between the screen body 40 made of a net material and the sheet-like end members 41 made of a fastener tape made of a material different from the net material. Since it engages with the boundary between the screen main body 40 and the end member 41, it is likely to get caught on steps caused by members made of different materials and bent portions caused by differences in materials.
In addition, since the cap protrusion 80 e that presses the end of the screen 4 in the width direction has an inclined portion, it is easier to engage with the boundary between the screen main body 40 and the end member 41 .
Furthermore, since the cap protrusion 80e has an inclined portion, the portion of the cap protrusion 80e that protrudes further to the outside presses the screen 4 more strongly. For this reason, the tension acts more reliably on the screen 4, and the portion of the inclined portion of the cap projection 80e that protrudes further to the outside presses the boundary portion between the screen main body 40 and the end member 41 more strongly. , it is possible to suppress the movement of the ends of the screen 4 in the width direction toward the center side, thereby more reliably suppressing the twisting of the screen 4 .

Moreover, since the cap projecting portion 80e abuts on the screen 4 above the upper end of the bottom bar 7, the lower end of the screen 4 can be tensioned above the bottom bar 7. As shown in FIG. Therefore, it is possible to provide the roll screen device 1 in which the lower end of the screen 4 is less prone to twisting.

In the above embodiment, an example in which the cap protrusion 80e protrudes to the outside has been described, but the cap protrusion 80e may protrude to the indoor side to press the screen indoors.

The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. The present invention can be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.
This embodiment includes at least the following inventions.

a flexible sheet-like screen; a bottom bar provided at the lower end of the screen along the width direction of the screen; an end cap that holds the screen in a state of protruding into the width direction of the screen; and rails with which both ends are engaged and guided, and each of the end caps has a pressing portion that presses the screen in an out-of-plane direction. .

According to such a screen device, the pressing portions of the end caps provided at both ends of the bottom bar provided at the lower end of the screen press both ends in the width direction of the screen in the out-of-plane direction. The state where the screen is stretched is maintained even at the lower end of the . Therefore, the screen is less likely to be twisted. In addition, since the screen is less likely to be twisted, the end portion of the screen in the width direction on the upper side of the bottom bar is less likely to shift toward the center as in the case of twisting. For this reason, the lower ends of the portions protruding at both ends of the screen in the width direction are less likely to rise above the rails. It is possible to prevent the bottom edge of the screen from slipping out of the opening. Since the lower end of the screen is engaged with the rail even when the screen is rolled up, it is possible to maintain the state where the end of the screen is guided by the rail even when the screen is extended. .

In this screen device, the pressing portion has an inclination such that the amount of protrusion in the viewing direction decreases from the center side to the end side in the width direction of the screen.

According to such a screen device, the pressing portion that presses the end portion in the width direction of the screen has an inclined portion, so that the more projecting portion of the pressing portion presses the screen more strongly. For this reason, since the tension is more reliably applied to the screen, it is possible to prevent the ends of the screen in the width direction from moving toward the center.

In this screen device, the screen includes a screen body, sheet-like end members provided along both widthwise end portions of the screen body and made of a material different from that of the screen body, and edges of the end members. and an engaging portion provided at the end member, wherein the pressing portion is in contact with both the screen main body and the end member.

According to such a screen device, the pressing portions are engaged with the boundaries between the screen main body present at both ends of the screen and the sheet-shaped end members made of a material different from that of the screen main body. It is easy to get caught on the steps caused by the Therefore, it is possible to more reliably suppress the occurrence of screen distortion.

This screen device is characterized in that the pressing portion is positioned above the bottom bar.

According to such a screen device, since the pressing portion contacts the screen above the bottom bar, the lower end of the screen can be tensioned above the bottom bar. As a result, it is possible to more reliably prevent the end portion in the width direction of the screen from moving toward the center above the bottom bar.

1 screen device (roll screen device), 3 shaft, 4 screen,
6 rail, 7 bottom bar, 8 end cap, 40 screen body,
41 end member, 42 engaging portion, 80e cap protrusion

Claims (4)

a flexible sheet-like screen;
a bottom bar provided along the width direction of the screen at the lower end of the screen;
end caps provided at both ends of the bottom bar in the width direction and holding the screen in a state in which the screen protrudes in the width direction;
a shaft around which the screen can be wound and unreeled;
Rails provided at intervals in the width direction and engaged with and guided by both ends of the screen in the width direction;
has
A screen device, wherein each of said end caps has a pressing portion for pressing said screen in an out-of-plane direction. The screen device according to claim 1,
The screen device, wherein the pressing portion has an inclination such that the amount of protrusion in the viewing direction decreases from the center side to the end side in the width direction of the screen. The screen device according to claim 1 or claim 2,
The screen is
screen body and
sheet-shaped end members provided along both ends of the screen body in the width direction and made of a material different from that of the screen body;
and an engaging portion provided on the edge of the end member,
The screen device, wherein the pressing portion is in contact with both the screen main body and the end member. The screen device according to any one of claims 1 to 3,
The screen device, wherein the pressing portion is positioned above the bottom bar.

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