JPH11141249A - Screen device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely block a clearance between side end parts of adjacent beltlike sheet, prevent hot air, etc., from between side end parts of the adjacent beltlike sheet from flowing out, prevent hot air, etc., from flowing out even if the beltlike sheet is shrunk, and increases airtightness. SOLUTION: This screen device is provided with guide rails 1 which form an insertion port 3, respectively, by fixing it on both side parts of a shaded part 2 relatively and opposing mutually and a sheet body 15 shading the shaded part 2 by inserting both side end parts in the direction of width into the insertion port 3 of the guide rail 1 in both side parts so as to lift and lower it freely. The sheet body 15 has a plurality of beltlike sheet 21 in the vertical direction in which side end parts 20 in the direction of width are arranged in parallel in close proximity, a weight body 22 attached to lower end parts of a plurality of beltlike sheet 21, and a clearance blocking sheet 26 in the vertical direction which is arranged along at least one direction of both side end parts 20 of adjacent beltlike sheet 21 and blocks a clearance 25 between the side end parts 20 of adjacent beltlike sheet 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen device, and more particularly to a screen for shielding a doorway of a building, particularly a factory or the like, to prevent wind and dust from entering the factory or the like. Holds the screen for the partition,
Alternatively, the present invention relates to a fireproof screen that shields a predetermined position in a building as a fire prevention section to prevent the spread of smoke and the spread of fire in a fire.

[0002]

2. Description of the Related Art Conventionally, as a screen apparatus of this kind, for example, a fire-resistant screen apparatus for preventing the spread of smoke and the spread of fire in a fire, as disclosed in Japanese Patent Application Laid-Open No. 8-164218, for example, A winding shaft is provided horizontally at the upper end of the portion, and a number of band-shaped sheets are wound around one end so as to be in contact with and adjacent to the winding shaft, and are rewound down and hung downward when the shielded portion is shielded. And a bar-shaped weight having a length substantially equal to the width of each band-shaped sheet individually attached to the lower end portion of this many band-shaped sheets, and a large number of band-shaped sheets that shield the shielded part in an emergency such as a fire. 2. Description of the Related Art There is known a configuration in which a sheet can be escaped from between band-shaped sheets by spreading the sheet.

However, in the configuration described in this publication, a large number of belt-shaped sheets hang down in a state in which both side edges in the width direction are in contact with each other and are adjacent to each other. When inflated by wind pressure, etc., adjacent side sheets adjacent to each other are separated from each other, and a gap through which hot air flows out is easily formed between them. Similarly, a gap through which hot air or the like flows out is easily formed between the outer end portion of the band-shaped sheet and the side wall of the shielded portion, and therefore, the airtightness is easily easily deteriorated as a whole. There's a problem.

In view of the above, a refractory sheet body for shielding a shielded portion is required to be a single sheet that shields an upper portion of the shielded portion because of its airtightness when the shielded portion is shielded and ease of escape in an emergency such as a fire. A fire-resistant sheet, a middle rail member fixed to the lower end of the fire-resistant sheet, and a plurality of side-by-side members that are fixed to the middle rail member and whose upper ends are fixed to each other and overlap each other with the side edges in the width direction overlapping. And a weight body fixed to the lower end portions of the plurality of belt-shaped sheets and landing on the floor surface of the shielded portion.

[0005]

However, in the construction of the refractory sheet, the plurality of belt-like sheets have the upper end fixed to the middle cross member and the lower end fixed to the weight, respectively. If the upper and lower ends are not fixed to each other so that the overlap of the sheets overlaps with the same dimensions in the vertical direction, the adjacent belt-shaped sheets will be overlapped when they are fanned by wind pressure such as hot air during a fire. A gap through which hot air or the like flows out between the margins is easily formed, and a wrinkle is formed at the outer end of the strip-shaped sheet located at both ends, and a guide rail for inserting the outer end of the strip-shaped sheet is provided. A gap in which hot air or the like flows out is easily formed, and the upper and lower ends of the adjacent strip-shaped sheets are fixed in such a manner that the overlapping margins overlap in the vertical direction with the same dimensions. Even if hot air Since the belt-like sheet tends to shrink when heated further, a gap through which hot air or the like flows out may be formed between the overlapping margins of the adjacent belt-like sheets, and the weight may be reduced due to the shrinkage of the belt-like sheet. There is a case where a gap is formed between the floor and the floor when the body is lifted, so that the airtightness is easily deteriorated as a whole.

The present invention has been made in view of such a problem, and can reliably close a gap between side edges of adjacent belt-shaped sheets, and can be insulated by wind pressure of hot air or the like at the time of fire. Even when it is provided, a gap through which hot air or the like flows out is not easily formed between both side ends of the adjacent belt-shaped sheet, and a gap through which hot air or the like flows out between the guide rails is easily formed. Even if the belt-shaped sheet shrinks, there is no easy formation of a gap through which the hot air flows out between the side edges of the adjacent belt-shaped sheet, and the hot air flows out from the floor surface. It is an object of the present invention to provide a screen device in which no gap is formed, and thus the overall airtightness is high and escape in an emergency such as a fire is easy.

[0007]

According to a first aspect of the present invention, there is provided a screen device, comprising: a guide rail fixed to both sides of a shielded portion and having insertion openings formed in the vertical direction so as to face each other;
A sheet body that is inserted vertically into the insertion openings of the guide rails on both sides and that is provided so as to be able to move up and down along the vertical direction and that shields the shielded portion. A plurality of strip-shaped sheets arranged side by side with their side ends in the width direction spaced apart from each other, and a weight attached to the lower end of the plurality of strip-shaped sheets and landing on the floor surface of the shielded portion. A weight body, and a gap closing sheet that is arranged along at least one surface of both side ends of the adjacent band-shaped sheet and closes a gap between both side ends of the adjacent band-shaped sheet. .

When shielding the shielded portion, a plurality of band-shaped sheets and gap closing sheets arranged along at least one surface of both side ends of the adjacent band-shaped sheets are simultaneously lowered. At this time, both outer edges of the strip-shaped sheets located on both sides are respectively moved along the insertion openings of the guide rails on both sides, and the plurality of strip-shaped sheets are smoothly lowered by the weight of the weight body.

When the weight body is landed on the floor surface of the shielded portion, the plurality of band-shaped sheets and the gaps arranged along at least one of both side edges of the adjacent band-shaped sheets are provided. The shielded portion is shielded by the sheet body made of the closing sheet. At this time, the gap closing sheet is disposed along at least one surface of both side ends of the adjacent belt-shaped sheet, so that the gap closing sheet is closed. The gap between both end portions of the adjacent belt-like sheet is reliably closed by the sheet.

When the sheet body is pressed by a pressure such as wind pressure from one surface on which the gap closing sheet is disposed, the plurality of strip-shaped sheets and the gap closing sheet slightly bend in the pressing direction. However, at this time, the gap closing sheet is in close contact with one surface of both side ends of the adjacent belt-shaped sheet, and the gap between both side ends of the adjacent band-shaped sheet is reliably airtightly closed by the gap closing sheet. Thus, it is possible to prevent the wind and the like from flowing out from between both end portions of the adjacent belt-shaped sheet.

Therefore, the shielded portion is completely shielded by the sheet body, and even when the sheet body is fanned by wind pressure, wind or the like is generated between both side edges of the adjacent strip-shaped sheet by the gap closing sheet. The gap between them is surely airtightly closed without forming a gap for flowing out, and the closed state of the gap is maintained.

Further, at the time of escape in the event of a fire or the like, the gap between the both end portions of the adjacent belt-shaped sheet is opened by separating the gap closing sheet from the both end portions of the adjacent belt-shaped sheet. You can easily escape as an exit.

According to a second aspect of the present invention, in the screen device of the first aspect, the gap closing sheet is
The belt-shaped sheet is disposed along at least one surface of both side edges of the adjacent belt-shaped sheet with the lower end as a free end.

When the sheet body is pressed by a pressure such as wind pressure from one surface on which the gap closing sheet is arranged, the plurality of band-shaped sheets and the gap closing sheet slightly bend in the pressing direction. However, at this time, the gap closing sheet whose lower end is a free end is closely contacted along one bent side of both side ends of the adjacent band-shaped sheet, and the adjacent band-shaped sheet is The gap between both side ends is reliably airtightly closed, so that wind or the like is prevented from flowing out between both side ends of the adjacent belt-shaped sheet.

According to a third aspect of the present invention, in the screen device of the first or second aspect, the gap closing sheet has a reinforcing member in a width direction of the gap closing sheet.

When the shielded portion is shielded, the gap closing sheet hangs down along both side edges of the adjacent band-shaped sheet due to the weight of the reinforcing material, and both sides of the adjacent band-shaped sheet are separated by the gap closing sheet. The gap between the ends is reliably closed.

Further, at the time of escape in the event of a fire or the like, the gap between the both end portions of the adjacent belt-shaped sheet is opened by separating the gap closing sheet from the both end portions of the adjacent belt-shaped sheet. It can easily escape as an exit, but after this escape, the gap closing sheet automatically returns in the direction of closing the gap between both side ends of the adjacent strip-shaped sheet due to the weight of the reinforcing material, and this gap The gap between both end portions of the adjacent belt-shaped sheet is reliably air-tightly closed by the closing sheet, and the flow of air or the like from between the both end portions of the adjacent belt-shaped sheet is prevented.

According to a fourth aspect of the present invention, there is provided the screen device of the third aspect, wherein the reinforcing member has both end portions at both end portions in the width direction of the gap closing sheet.

When the shielded portion is shielded, the gap closing sheet hangs down along both side edges of the adjacent strip-shaped sheet due to the weight of the reinforcing material, and both sides of the adjacent strip-shaped sheet are separated by the gap closing sheet. The gap between the ends is securely closed, but at this time, both ends in the width direction of the gap closing sheet are securely joined to both sides of the adjacent strip-shaped sheet at both ends of the reinforcing material, The wind and the like are prevented from flowing out from between both side ends of the belt-shaped sheet to be provided.

When the sheet body is pressed by one of the surfaces on which the gap closing sheet is disposed by a pressure such as wind pressure in a state where the shielded portion is shielded, both ends of the reinforcing member are disposed on both sides of the adjacent strip-shaped sheet. By being joined to the end, the reinforcing member prevents the gap closing sheet from slipping out from between both side ends of the adjacent strip-shaped sheet in the pressing direction.

According to a fifth aspect of the present invention, there is provided the screen device according to the first or second aspect, wherein the gap closing sheet is formed on both side edges of the gap closing sheet at predetermined intervals in the vertical direction. It has a number of slits in the width direction of the closing sheet.

When the sheet body is pressed by a pressure such as wind pressure from one surface on which the gap closing sheet is disposed, the plurality of strip-shaped sheets and the gap closing sheet are slightly bent in the pressing direction. However, at this time, the gap closing sheet whose upper end is fixed and whose lower end is a free end bends along one of the bent side surfaces of both side ends of the adjacent belt-shaped sheet and has a predetermined interval in the vertical direction. By forming a number of slits in the width direction of the gap closing sheet formed at both sides, both side edges of the gap closing sheet are securely brought into close contact with both side ends of the adjacent strip-shaped sheet. The gap between both side ends is more reliably air-tightly closed, so that the wind or the like is prevented from flowing out between both side ends of the adjacent belt-shaped sheet.

According to a sixth aspect of the present invention, in the screen device of the first aspect, the gap closing sheet is
It has a holding piece portion for holding both side ends of the strip-shaped sheet adjacent to both side ends of the gap closing sheet from both sides.

When the sheet body is pressed from one side or the other side on which the gap closing sheet is disposed by a pressure such as wind pressure, the plurality of band-shaped sheets and the gap closing sheet slightly bend in the pressing direction. That means
At this time, since the both end portions of the adjacent strip-shaped sheet are sandwiched by the sandwiching pieces at both end portions of the gap closing sheet, the gap between the both end portions of the adjacent strip-shaped sheet in the gap closing sheet is formed. Is securely closed in an airtight manner, so that the wind or the like is prevented from flowing out from between both side ends of the adjacent belt-shaped sheet. Further, even if the pressure fluctuates, the gap between the two side edges of the adjacent belt-shaped sheet is reliably air-tightly closed by the gap closing sheet, and the wind or the like flows out from between the two side edges of the adjacent belt-shaped sheet. Is prevented.

According to a seventh aspect of the present invention, in the screen device of the first or sixth aspect, the gap closing sheet is formed by two gap closing sheets having substantially the same shape and having a substantially middle portion fixed in the width direction. In addition, sandwiching pieces for sandwiching both sides of the adjacent strip-shaped sheet from both sides are formed at both sides of the two gap closing sheets.

When the sheet body is pressed from one surface or the other surface on which the gap closing sheet is arranged by pressure such as wind pressure, the plurality of strip-shaped sheets and the gap closing sheet are slightly bent in the pressing direction. That means
At this time, since the two gap closing sheets are fixed at a substantially middle portion in the width direction, even if the two gap closing sheets receive a pressure such as a wind pressure from either the one surface or the other surface. Further, even if the directions of the pressures are reversed, the gap between the two side edges of the adjacent strip-shaped sheet is reliably airtightly closed by the two gap-blocking sheets, and both sides of the adjacent strip-shaped sheet are closed. The outflow of wind and the like from between the ends is prevented.

When one of the gap closing sheets receiving a pressure such as a wind pressure is bent in the pressing direction, the other gap closing sheet is pushed by the wind pressure or the like caused by the one gap closing sheet so that the other gap closing sheet is pressed by the one gap closing sheet. Floating away from the closing sheet is prevented.

According to an eighth aspect of the present invention, in the screen device of the first aspect, the band-shaped sheets located on both sides are arranged along at least one surface of the outer end of the band-shaped sheet. And a side end gap closing sheet for closing a gap between the outer end and the insertion opening of the guide rail.

When the weight is landed on the floor surface of the shielded portion, the plurality of band-shaped sheets, the gap closing sheet at both side ends of the adjacent band-shaped sheet, and the outer end of the band-shaped sheet are provided. The shielded portion is shielded by the sheet body made of the side end gap closing sheet, but at this time, the side end gap closing sheet is arranged along at least one surface of the outer end of the belt-shaped sheet, The gap between the outer end of the belt-shaped sheet and the insertion opening of the guide rail is securely closed by the side end gap closing sheet.

When the sheet body is pressed by a pressure such as wind pressure from one surface on which the gap closing sheet is arranged, the plurality of strip-shaped sheets, the gap closing sheet and the side end gap closing sheet are respectively moved in the pressing direction. At this time, the side end gap closing sheet is closely bent to one side of the opening edge of the insertion opening of the guide rail, and the side end gap closing sheet is The gap between the outer end portion and the guide rail is reliably airtightly closed, and the flow of the wind or the like from the gap is prevented.

According to a ninth aspect of the present invention, in the screen device according to the eighth aspect, the side end gap closing sheet is an outer end of a belt-shaped sheet whose upper end is fixed and whose lower end is a free end and located on both sides. Disposed along at least one surface of the portion.

When the sheet body is pressed by pressure such as wind pressure from one surface on which the side end gap closing sheet is disposed, the plurality of strip-shaped sheets, the gap closing sheet and the side end gap closing sheet are respectively pressed in the pressing direction. At this time, the side end gap closing sheet whose upper end is fixed and whose lower end is a free end is closely contacted with the opening edge of one side of the insertion opening of the guide rail. The gap between the guide rail and the insertion opening is securely and hermetically closed by the end gap closing sheet.

According to a tenth aspect of the present invention, there is provided the screen device according to the eighth or ninth aspect, wherein the side end gap closing sheet is vertically spaced from the inner edge of the side end gap closing sheet. It has a plurality of slits in the width direction of the formed side end gap closing sheet.

When the sheet body is pressed by a pressure such as wind pressure from one surface on which the side end gap closing sheet is disposed, the plurality of strip-shaped sheets, the gap closing sheet and the side end gap closing sheet are respectively pressed in the pressing direction. At this time, the side end gap closing sheet whose upper end is fixed and whose lower end is a free end bends along one bent surface of the adjacent belt-shaped sheet, and With a number of slits in the width direction of the side end gap closing sheet formed at predetermined intervals in the direction, both side edges of the side end gap closing sheet are in close contact with one side of the opening edge of the insertion opening of the guide rail,
With this side end gap closing sheet, the gap between the guide rail and the insertion opening is reliably airtightly closed.

In the screen device according to the eleventh aspect, in the screen device according to the first aspect, the weight body is placed on the floor surface of the shielded portion when the shielded portion is shielded, and the weight body is placed between the weighted body and the floor surface. It has a floor gap closing sheet for closing the gap.

When the weight body is landed on the floor surface of the shielded portion, the gaps arranged along at least one of the side edges of the plurality of strip-shaped sheets and the adjacent strip-shaped sheets are provided. The shielded portion is shielded by the sheet body made of the closing sheet. At this time, the weight body has the floor surface gap closing sheet that closes the gap between the floor and the floor. Thus, the gap between the shielded portion and the floor surface is securely closed.

Further, when the sheet is pressed from one surface on which the floor surface gap closing sheet is arranged by pressure such as wind pressure,
The plurality of strip-shaped sheets, the gap closing sheet, and the floor gap closing sheet are each slightly bent in the pressing direction. At this time, the floor gap closing sheet is closely contacted with the floor surface of the shielded portion. The space between the shielded portion and the floor surface is reliably airtightly closed by the floor surface gap closing sheet.

According to a twelfth aspect of the present invention, in the screen device according to the eleventh aspect, the floor surface gap closing sheet is protruded downward from the weight body and separated from each other in opposite directions. Is closed from both sides.

When the weight is landed on the floor surface of the shielded portion, the gaps arranged along at least one of the two side edges of the plurality of strip-shaped sheets and the adjacent strip-shaped sheets are provided. The shielded portion is shielded by the sheet body made of the closing sheet. At this time, the weight body has a floor gap closing sheet that closes the space between the floor and the floor from both sides, so that the floor gap closing sheet is used. Thus, the space between the shielded portion and the floor surface is more reliably closed from both sides.

Further, when the sheet is pressed from one surface on which the floor surface gap closing sheet is arranged by a pressure such as wind pressure,
The plurality of belt-shaped sheets, the gap closing sheet, and the one floor gap closing sheet are each slightly bent in the pressing direction. At this time, one floor gap closing sheet is bent by the other floor gap closing sheet. The sheet is slid along the floor surface to bend toward the sheet and flexed, and the one floor surface gap closing sheet is closely contacted with the floor surface of the shielded portion, and the floor gap of the floor portion is closed by the floor surface gap closing sheet. The space between the surfaces is reliably airtightly closed.

Further, when the sheet is pressed by the pressure such as wind pressure from the other surface on which the floor gap closing sheet is disposed, the other floor gap closing sheet approaches the one floor gap closing sheet. As described above, the sheet is slid along the floor surface to bend, and the other floor surface gap closing sheet is closely contacted with the floor surface of the shielded portion. It is sealed tightly.

Therefore, even when the sheet body is pressed by pressure such as wind pressure from any direction, the space between the shielded portion and the floor surface is securely closed by the floor surface closing sheet.

According to a thirteenth aspect of the present invention, in the screen device according to any one of the first to tenth aspects, the sheet member shields the upper part of the shielded portion having both side ends inserted into the insertion opening of the guide rail. A single tailored sheet and a middle cross member fixed along the lower end of the sheet, and the middle cross member includes a plurality of band-shaped sheets, a gap closing sheet, and an upper end of the side end gap closing sheet. It is a thing to fix each.

When the weight is landed on the floor surface of the shielded portion, a single tailored sheet and a plurality of belt-like sheets fixed to the middle cross member at the lower end of the sheet are provided.
The shielded portion is reliably shielded by the sheet body including the gap closing sheet, the side end gap closing sheet, and the weight body.

Further, when the sheet body is pressed by pressure such as wind pressure from one surface on which the gap closing and side end gap closing sheets are arranged, the plurality of strip-shaped sheets, the gap closing sheets and the side end gap closing sheets are respectively formed. Although it will bend slightly in the pressing direction, at this time, this gap closing sheet is closely contacted with one surface of both side ends of the adjacent strip-shaped sheet,
The gap between the two side edges of the adjacent strip-shaped sheet is reliably airtightly closed by the gap closing sheet, and the side end gap closing sheet is closely attached to one opening edge of the insertion opening of the guide rail. The gap between the guide rail and the insertion opening of the guide rail is reliably airtightly closed by the side end gap closing sheet.

Therefore, it is possible to prevent wind and the like from flowing out from between the both end portions of the adjacent belt-shaped sheet and between the both outer end portions of the belt-shaped sheet located on both side portions and the insertion opening of the guide rail. In addition, the shielded portion is completely shielded entirely by the sheet member, the space between them is reliably airtightly closed, and the closed state of these gaps is maintained.

According to a fourteenth aspect of the present invention, there is provided a screen device, comprising: a guide rail fixed to both sides of the shielded portion and opposed to each other; A sheet body that is provided so as to be able to move up and down along the vertical direction by inserting both side ends in the width direction and shields the shielded portion, wherein the sheet body has both side ends in the width direction as overlapping margins. A plurality of band-shaped sheets arranged side by side in a state of being overlapped with each other, and a weight attached to a lower end portion of the plurality of band-shaped sheets and landing on a floor surface of the shielded portion; One of the overlapping portions of the overlapping strips has a number of slits in the width direction of the overlapping portion formed at predetermined intervals in the vertical direction.

When the shielded portion is to be shielded, a plurality of strip-shaped sheets are respectively lowered at the same time. At this time, both outer edges of the strip-shaped sheets located on both sides are respectively guided by guide rails on both sides. The plurality of belt-like sheets are smoothly lowered along the insertion opening of the body and by the weight of the weight body.

When the weight is landed on the floor surface of the shielded portion, the shielded portion is shielded by the sheet having a plurality of band-shaped sheets. The band-shaped sheets are arranged side by side so as to overlap each other with the both side edges in the width direction being overlapped, and the weight body is attached to these lower ends, so that a plurality of band-shaped sheets are formed on both side edges in the width direction. In the state where the overlapping margins are overlapped with each other, the shielded portion is reliably shielded in cooperation with the weight body.

When the sheet is pressed from one side in the front-rear direction by a pressure such as wind pressure, the plurality of belt-like sheets slightly bend in the pressing direction. The band-shaped sheet has a large number of slits in the width direction of the overlap margin formed at predetermined intervals in the vertical direction, and one overlap margin is overlapped with the other overlap margin, so that the other overlap margin is formed. As the margins bend in the pressing direction, one of the overlap margins flexes smoothly with a large number of slits along the other overlap margin and is securely brought into close contact with the other overlap margin. And the other overlap margin is securely airtightly closed.

Accordingly, the shielded portion is entirely airtightly closed by the sheet body, and the wind or the like is prevented from flowing out from the overlapping margins of the both side edges of the adjacent belt-shaped sheet that overlap each other.

A screen device according to a fifteenth aspect is the screen device according to any one of the first to fourteenth aspects, wherein the sheet, a plurality of band-shaped sheets, a gap closing sheet, a side end gap closing sheet, and a floor gap closing sheet. In addition, each of the weight bodies is formed of a nonflammable member.

Then, a sheet formed of the non-combustible member, a plurality of strip-shaped sheets formed of the non-combustible member, a gap closing sheet formed of the non-combustible member, and a side formed of the non-combustible member A predetermined block position in the building is shielded as a fire prevention section by the end gap block sheet and the floor gap block sheet formed of a non-combustible member and a weight body formed of a non-combustible member, and smoke is diffused in the event of a fire. And a fire-resistant screen device for preventing the spread of fire.

[0054]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

1 and 2, reference numeral 1 denotes left and right guide rails vertically fixed to the opposite side walls of the shielded portion 2 so as to be opposed to each other. Up-down insertion opening 3 facing opposite
Are formed in a substantially U-shaped cross section, and the opposed insertion openings 3 are formed by front and rear vertical guide pieces 3a and 3b provided in parallel with each other. The shielded portion 2 means an opening such as an entrance, an emergency exit, a passage, and the like, and an opening of a location that needs to be shielded as a fire protection section for fire prevention and smoke prevention.

A screen box 5 into which the upper ends of the left and right guide rails 1 are inserted is fixed to an upper side wall portion 4 such as an upper frame of the upper end portion of the shielded portion 2. Left and right guide ports 6 are formed at lower ends thereof and open to communicate with the insertion ports 3 of the left and right guide rails 1 respectively.

A take-up shaft 8 having a take-up drum 7 in the left-right direction is rotatably mounted in the screen box 5, and one end of the take-up shaft 8 rotates the take-up shaft 8. The rotating wheel 9 to be driven is fixed. A forward / reverse rotatable motor 10 is fixed in the screen box 5, and a drive wheel 12 is fixed to an output shaft 11 of the motor 10 at a position facing the rotating wheel 9. An endless rotating body 13 is suspended between the rotating wheel 9 and the rotating wheel 9.

The motor 10 is operated by an output signal such as a fire signal from a control means (not shown). The output of the motor 10 is transmitted to the winding shaft 8 at a reduced speed. Further, the motor 10 is automatically stopped at a predetermined number of rotations set in accordance with a landing position at which a weight body to be described later land on the floor surface 14 of the shielded portion 2. ing. In addition, the motor 10 receives a stop signal from the control unit, which receives a detection signal from a detection unit that is detected by a detection unit when a weight body, which will be described later, is landed on the floor surface 14 of the shielded portion 2. The operation may be stopped.

Further, the brake of the motor 10 may be released by an output signal such as a fire signal from a control means (not shown), and the sheet body may be lowered by its own weight including a weight body described later. Also in this case, the motor 10 is automatically stopped at a predetermined number of rotations set according to a landing position at which the weight body lands on the floor surface 14 of the shielded portion 2. I have. In the present embodiment, the weight of the motor 10 will be described later.
The configuration will be described in which the automatic stop is performed at a predetermined number of rotations set in accordance with the landing position at which the landing is performed at 14.

Next, an upper end portion of a vertically movable sheet member 15 that shields the shielded portion 2 is fixedly wound around the winding drum 7, and the sheet member 15 is wound around the winding drum 7. By returning, the lower part is lowered with the both ends in the width direction inserted into the insertion openings 3 of the left and right guide rails 1 to shield the shielded part 2.

As shown in FIGS. 1 and 3, the sheet body 15 is made up of a single sheet 16 for shielding the upper part of the shielded portion 2 and a sheet fixed along the lower end of the sheet 16. And a middle cross member 17 having a length in the width direction of 16. The seat 16 is formed of a non-combustible member having insertion ends 18 which are vertically inserted into the insertion openings 3 of the left and right guide rails 1 at both ends in the width direction. Also,
The middle cross member 17 has the left and right guide rails 1 at both ends.
Is formed of a non-combustible member having an insertion end portion 19 which is inserted into the insertion opening 3 so as to be vertically movable.

As shown in FIGS. 1 and 3, the upper end of the sheet member 15 is fixed to the middle cross member 17, and the widthwise side ends 20 are separated from each other to form a gap 25. A plurality of vertically arranged strip-shaped sheets 21 and one weight having a widthwise length of the plurality of strip-shaped sheets 21 attached and fixed along the lower ends of the plurality of strip-shaped sheets 21. And a weight 22. The plurality of strip-shaped sheets 21
Is formed of a non-combustible member. Further, the one weight body 22 is formed of a non-combustible member having insertion ends 23 which are vertically inserted into the insertion openings 3 of the left and right guide rails 1 at both ends.

Further, the sheet member 15 is formed as shown in FIGS.
As shown in the figure, the upper end portion is fixed to the middle cross member 17 and the lower end portion is a free end portion 24, and the adjacent strip-shaped sheet is provided.
A plurality of up-down directions which are respectively arranged along both sides in the front-rear direction of both side ends 20 of 21 and close a gap 25 of a predetermined size between both side ends 20 of the adjacent strip-shaped sheet 21 from both sides in the front-rear direction. It has two gap closing sheets 26. Each of the gap closing sheets 26 is formed in a rectangular shape such as a rectangular shape or a square shape having substantially the same width, which has a predetermined width for closing the gap 25 and is long in the vertical direction.

The plurality of strip-shaped sheets 21 and the plurality of gap-blocking sheets 26 are used in a necessary number according to the opening width of the shielded portion 2 to alternately form the strip-shaped sheets 21 and the gap-blocking sheets 26. They are arranged along the middle cross member 17 and their upper ends are respectively fixed to the middle cross member 17 under the above conditions.

The gap 25 between the two side ends 20 of the adjacent strip-shaped sheet 21 is relatively narrow as shown in the figure when only airtightness when closed by the gap closing sheet 26 is considered. It may be formed at an interval as wide as possible when taking into account the exit in which the gap closing sheet 26 is separated from the both side ends 20 of the adjacent strip-shaped sheet 21 and escapes during escape in an emergency or the like. Therefore, the gap 25 between the both side ends 20 of the adjacent strip-shaped sheet 21 is formed at an interval of a predetermined size in consideration of the airtightness by the gap closing sheet 26 and the interval as the exit. ing. This gap 25
Even if it is formed in a size that takes into account the interval as an exit,
By increasing the width of the gap closing sheet 26 in accordance with the gap 25, airtightness when the gap 25 is closed is sufficiently ensured.

As shown in FIGS. 3 and 4, the sheet body 15 has upper ends fixed to both ends of the middle cross member 17 and is located on the both sides with the lower end as a free end 27. A gap 29 between the outer end portion 28 of the strip-shaped sheet 21 and the insertion opening 3 of the left and right guide rails 1 is disposed along both sides in the front-rear direction of the outer end portion 28 of the strip-shaped sheet 21. Each has a side end gap closing sheet 30 in the vertical direction which is closed from the side. This side end gap closing sheet
Reference numeral 30 denotes a rectangular shape having a predetermined width for closing the gap 29 and having substantially the same width, which is long in the vertical direction.

The plurality of gap closing sheets 26 are formed of a nonflammable member. Further, the side end gap closing sheets 30 at the both end portions are provided with the left and right guide rails 1 at the outer end portions.
Is formed of a nonflammable member having an insertion end portion 31 which is inserted into the insertion opening 3 so as to be vertically movable.

As shown in FIGS. 1 and 3, the weight body 22 protrudes downward from the weight body 22 and separates from each other in opposite directions. Floor
A floor gap closing sheet 33 is formed to form a landing section 32 for landing on the floor 14 and to close the space between the weight body 22 and the floor surface 14 from both front and rear directions.

The front and rear floor gap closing sheets 33 have cutouts 36 at both ends which are not inserted into the insertion openings 3 of the left and right guide rails 1 but are in contact with the inner end faces of the left and right guide rails 1. Each is formed of a non-combustible member having flexibility which can be restored as a non-combustible member. The front and rear floor gap closing sheets 33 have notches 36 at both ends, so that the front and rear floor gap closing sheets 33 are not hindered by the left and right guide rails 1 when landing on the floor 14. Are easily landed on the floor surface 14 and easily slide and bend in directions opposite to each other.

Thus, the gap closing sheet 26 is formed as an overlap margin 34 that overlaps the side end 20 of the adjacent strip-shaped sheet 21 with a predetermined width at both side ends in the width direction.
Reference numeral 34 denotes the adjacent band-shaped sheet 21 even when the adjacent band-shaped sheet 21 is bent by receiving the wind pressure of gas such as hot air, cold air, and hot air.
Is maintained in a state of overlapping with the side end portion 20.

Further, the side edge gap closing sheet 30 is formed as a lap allowance 35 in which the inner end overlaps the outer end 28 of the strip-shaped sheet 21 located at both ends with a predetermined width. When the belt-shaped sheet 21 located in the section bends due to the wind pressure of a gas such as hot air, cold air, or hot air, the belt-like sheet 21 is maintained so as to overlap the outer end portion 28 of the belt-shaped sheet 21.

The sheet 16, the belt-shaped sheet 21, the gap closing sheet 26, the side end gap closing sheet 30, and the floor gap closing sheet 33 are selected according to the installation location or use of the screen device. When used for fire prevention and smoke prevention in places that need to be shielded as fire protection compartments, non-combustible fabrics such as glass cloth and silica cloth are used, and places other than fire and smoke prevention use For example, when used as an airtight container at a doorway of a refrigerator, a factory, or the like, for example, a sheet made of a synthetic resin such as vinyl chloride or polyester, a non-combustible cloth, or the like is used. It is formed with a predetermined width.

Next, the operation of the above embodiment will be described.

When the motor 10 is activated by a fire signal when the shielded portion 2 is shielded, for example, in a fire that shields the shielded portion 2, the output from the motor 10 causes the winding shaft 8 to move the sheet 15. The sheet body 15 is successively rewound by the winding drum 7 of the winding shaft 8, and the insertion end 18 of the sheet 16 of the sheet body 15 and both ends of the middle cross member 17 are driven. The insertion end 19, the insertion end 31 of the side end gap closing sheet 30 located at both ends, the insertion end 23 of both ends of the weight body 22, and the notch 36 of the floor gap closing sheet 33 are left and right guides. The sheet body 15 composed of these members is guided and lowered by the insertion opening 3 of the rail 1, respectively.
Due to the weight of the weight 17 and the weight 22, it is smoothly and quickly lowered.

Then, the landing portion 32 of the floor gap closing sheet 33 before and after the weight body 22 is landed on the floor surface 14 of the shielded portion 2 and is lowered to a predetermined landing position. Rotates at the set predetermined number of revolutions and stops. At this time, the front and rear floor gap closing sheets 33 have notches 36 at both end portions that are not inserted into the insertion openings 3 of the left and right guide rails 1 and are in contact with the inner end surfaces of the left and right guide rails 1. The lower end of the landing section 32 of the floor gap closing sheet 33 is the floor surface.
While landing on the floor 14, the landing sections 32 are separated from each other in the opposite directions and land on the floor surface 14.

Further, the landing portion 32 of the sheet 33 for closing the floor surface before and after the weight body 22 is landed on the floor surface 14 of the shielded portion 2 and the motor
When the operation of 10 is stopped, the seat 15
16, a plurality of band-shaped sheets 21, gap closing sheets 26 arranged along both sides of both side ends 20 of adjacent band-shaped sheets 21, front and rear side gap closing sheets 30 located at both ends, respectively.
The shielded portion 2 is shielded by the floor surface gap closing sheets 33 before and after the weight body 22.

At this time, the gap closing sheet 26 whose upper end is fixed and whose lower end is the free end 27 is the adjacent strip-shaped sheet.
By being disposed along both the front and rear surfaces of both side ends 20 of 21, the gap 25 between both side ends 20 of the adjacent strip-shaped sheet 21 at the front and rear gap closing sheet 26 is formed from both front and rear surfaces. It is reliably closed.

The upper end is fixed and the lower end is free end.
The side end gap closing sheets 30 formed as 27 are arranged along the front and rear surfaces of the outer end portion 28 of the strip-shaped sheet 21 located at both ends, respectively, so that the front and rear side end gap closing sheets 30 are used. Outer end 28 of strip-shaped sheet 21 located at both ends
A gap 29 between the guide rails 1 and the insertion openings 3 of the left and right guide rails 1 is securely closed from both front and rear surfaces.

Further, the weight body 22 is lowered to a position close to the floor surface 14, and the floor gap closing sheet 33 in front of and behind the weight body 22 is lowered.
5A is landed on the floor surface 14 and pressed from above, and as shown in FIG. Floor surface with landing on 14
The gaps 37 between the weight body 22 and the floor surface 14 are securely closed from the front and rear surfaces by the front and rear floor space closing sheets 33 along the front and rear surfaces 14.

Therefore, when the sheet body 15 is lowered, the gap closing sheets 26 arranged along both sides of the sheet 16 of the sheet body 15, the plurality of band-shaped sheets 21, and both side ends 20 of the adjacent band-shaped sheet 21 are provided. The shielded portion 2 is completely and hermetically sealed by the front and rear side end gap closing sheets 30 located at both ends and the floor surface gap closing sheets 33 before and after the weight body 22, and is completely closed.

Next, when the sheet member 15 is pressed from one side in the front-rear direction by pressure such as wind pressure, the sheet member 15 is pressed.
The plurality of band-shaped sheets 21, one of the front and rear gap closing sheets 26, one of the front and rear side end gap closing sheets 30, and one of the floor gap closing sheets 33 before and after the weight body 22 are shown in FIG. 5) As shown in FIG. 5 (c), each of them slightly bends in the direction of pressing by pressure such as wind pressure.

At this time, one gap closing sheet 26 is brought into close contact with one surface of both side ends 20 of the adjacent strip sheet 21 by a pressure such as wind pressure, and the adjacent strip sheet 26 is separated by the one gap closing sheet 26. The gap 25 between the two side ends 20 of the 21 is reliably airtightly closed, so that the wind or the like is prevented from flowing out between the two side ends 20 of the adjacent strip-shaped sheet 21.

Further, one side end gap closing sheet 30 is brought into close contact with one of the opening edges of the insertion opening 3 of the guide rail 1, that is, the opening edge of one of the guide pieces 3a or 3b by a pressure such as wind pressure. This one side end gap closing sheet 30 is inserted into the insertion opening 3 of the guide rail 1 and the strip-shaped sheets 21 located at both ends.
The gap 29 between the outer end 28 of the
Wind and the like are prevented from flowing out from between the insertion opening 3 of the guide rail 1 and the outer end 28 of the strip-shaped sheet 21 located at both ends.

At this time, the belt-shaped sheets 21 located at both ends are formed.
As a result of bending of the band-shaped sheet 21 as in the case where the outer end portion 28 of the sheet is directly inserted into the insertion opening 3 of the guide rail 1, wrinkles through which wind or the like flows out of the outer end portion 28 are not formed. The gap 29 between the insertion opening 3 of the guide rail 1 and the outer end 28 of the strip-shaped sheet 21 located at both ends is reliably airtightly closed by the side end gap closing sheet 30.

Further, one floor surface gap closing sheet 33 is slid along the floor surface 14 so as to approach toward the other floor surface gap closing sheet 33 by a pressure such as wind pressure or the like, and is bent. The gap closing sheet 33 is in close contact with the floor surface 14 of the shielded portion 2, and the gap 37 between the weight body 22 and the floor surface 14 of the shielded portion 2 is securely formed by the one floor surface gap closing sheet 33. It is airtightly closed, and the flow of wind or the like from between the weight body 22 and the floor surface 14 of the shielded portion 2 is prevented.

Next, when the sheet body 15 is pressed from the other surface in the front-rear direction by pressure such as wind pressure, the sheet body 15 is pressed.
The other of the plurality of band-shaped sheets 21, the front and rear gap closing sheets 26, the other of the front and rear side end gap closing sheets 30, and the other of the floor surface gap closing sheets 33 before and after the weight body 22 are shown in FIG. As shown in FIG. 5 (c), each of them slightly bends in the direction of pressing by the pressure such as wind pressure and the other gap closing sheet 26, the other side end gap closing sheet 30, and the other floor gap. The closing sheets 33 are respectively operated, and the gaps 25, the gaps 29, and the gaps 37 are set in the same manner as in the case of the one gap closing sheet 26, the one side end gap closing sheet 30, and the one floor surface gap closing sheet 33. Surely airtightly closed,
Outflow of wind or the like from between these is prevented.

When the sheet body 15 is pressed from one side or the other side in the front-rear direction by pressure such as wind pressure, the sheet body 15 has both ends at the left and right guide rails 1.
By having a middle rail member 17 having the insertion end 19 inserted into the insertion opening 3 and a weight body 22 having the insertion ends 23 inserted into the insertion openings 3 of the left and right guide rails 1 at both ends thereof, Even if the sheet body 15 is pressed by one of the front and rear surfaces or the other surface by the pressure such as wind pressure by the weight 17 and the weight body 22, the sheet body 15 may be largely bent or easily come off from the insertion openings 3 of the left and right guide rails 1. Is prevented.

Therefore, the shielded portion 2 is securely shielded entirely by the sheet member 15, and even when the sheet member 15 is blown by the wind pressure, the band-like sheet 21 adjacent to the gap-closing sheet 26 at the front and rear is used. The gap between these two ends 20 is reliably airtightly closed without forming a gap 25 through which wind or the like flows out,
The front and rear side end gap closing sheets 30 are reliably airtightly closed without forming a gap 29 through which the wind or the like flows out between the insertion opening 3 of the gad rail 1 and the front and rear floor gaps. The space between the sheet 33 and the floor surface 14 is reliably airtightly closed without forming a gap 37 through which wind or the like flows out,
In addition, the closed state of the gaps 25, 29, and 37 is maintained.

When the pressure for pressing the sheet body 15 from one surface or the other surface in the front-rear direction is due to hot air or the like at the time of a fire, the front and rear gap closing sheets 26 positioned in the pressing direction of the hot air or the like, The end gap closing sheet 30 and the front and rear floor gap closing sheets 33 operate in the same manner as in the case where they are pushed by the pressure such as the wind pressure, respectively.
29 and the gap 37 are reliably airtightly closed to prevent hot air or the like from flowing out between them, and
The closed state of 25, 29 and 37 is maintained.

Therefore, in the event of a fire, the shielded portion 2 is reliably airtightly shielded by the sheet member 15, and the spread of smoke from the one side in the front-rear direction of the shielded portion 2 toward the other side of the shielded portion 2 by the sheet member 15. And the spread of fire is prevented.

The front and rear gap closing sheets 26 and the front and rear side end gap closing sheets 30 have their upper ends fixed and their lower ends formed as free ends 24 and 27, respectively. When the adjacent strip-shaped sheet 21 whose upper and lower ends are fixed between the weight member 22 and the weight member 22 has a different length in the vertical direction, or the middle cross member 17 and the weight member
The adjacent belt-shaped sheet 21 whose upper and lower ends are fixed between itself and the
These gaps 25 are securely closed by the front and rear gap closing sheets 26 even when the airbag contracts in the vertical direction. Also,
The gap 29 between the outer end 28 of the strip-shaped sheet 21 located at both ends and the insertion opening 3 of the guide rail 1 is also reliably closed by the front and rear side end gap closing sheets 30.

Further, the front and rear gap closing sheets 26 and the front and rear side edge gap closing sheets 30 have upper ends fixed and lower ends formed as free ends 24 and 27, respectively. At the time of emergency escape, one gap closing sheet 26 of the front and rear gap closing sheets 26 is pulled apart to open a gap 25 between both side ends 20 of the adjacent strip-shaped sheet 21, and this gap 25 is used as an exit and the other Gap closing sheet 26
By pressing, it is possible to easily escape from between them. In addition, by pushing open the outer end portions 28 of the belt-shaped sheet 21 located at both ends, it is possible to easily escape from between them.

Next, in the above-described embodiment, the gap closing sheets 26 are arranged along both the front and rear surfaces of the both end portions 20 of the adjacent strip-shaped sheet 21, and the side end gap closing sheets 30 are provided at both end portions. Although the case has been described in which the floor-shaped gap closing sheets 33 are arranged along both the front and rear surfaces of the outer end portion 28 of the belt-shaped sheet 21 and the floor surface gap closing sheets 33 are separated from each other in the opposite directions before and after the weight body 22. , Not limited to this, gap closing sheet
26 is disposed along one of the front and rear surfaces of both side ends 20 of the adjacent band-shaped sheet 21, and the side end gap closing sheet 30 is one of the front and rear surfaces of the outer end 28 of the band-shaped sheet 21 located at both ends. The floor gap closing sheet 33 is placed along the
May protrude from one of the front and rear surfaces or the lower surface of the weight body 22.

Then, the gap 25 between the two side ends 20 of the adjacent strip-shaped sheet 21 is closed by one side receiving the wind pressure by the gap closing sheet 26, and is located at both ends by the side end gap closing sheet 30. The gap 29 between the outer end portion 28 of the belt-shaped sheet 21 and the insertion opening 3 of the guide rail 1 is closed from one side receiving wind pressure, and the lower end portion of the weight body 22 and the floor surface are closed by a floor gap closing sheet 33.
It is possible to close the gap 37 between the two.

Next, in the above-described embodiment, the plurality of strip-shaped sheets 21 are separated from each other by separating the widthwise side ends 20 from each other.
Although the case where the sheets are opened and arranged side by side has been described, the present invention is not limited to this, and as shown in FIG. A slight gap 38 is formed and juxtaposed, and the gap 38 between the widthwise side ends 20 of the adjacent strip-shaped sheets 21 is closed by the gap closing sheet 26 from one or both surfaces in the front-rear direction. You may.

The other components are the same as those of the above-described embodiment. Therefore, the same components as those of the above-described embodiment will be denoted by the same reference numerals used in the description of the above-described embodiment, and will not be described.

With such a configuration, the plurality of belt-shaped sheets 21 bend under the pressure such as wind pressure,
Even if the gap 38 between the side ends 20 in the width direction of the adjacent strip-shaped sheet 21 is separated and widened, the gap 38 is reliably airtightly closed from one side or both sides by the gap closing sheet 26.

Next, in each of the above embodiments, the plurality of strip-shaped sheets 21 are separated from each other by separating the widthwise side ends 20 from each other.
25 or side by side, or a plurality of strips 21
Has described the case where the side end portions 20 in the width direction are arranged side by side with a slight gap 38 in close proximity to each other, but the present invention is not limited to this and is shown in FIGS. 7 and 8A and 8B. As described above, the plurality of band-shaped sheets 21 are juxtaposed in a state where the width-direction side ends 20 are superimposed on each other as an overlap margin 39, and are arranged side by side. The overlap margin 39 may be closed by the gap closing sheet 26 from one or both sides in the front-rear direction.

The other configuration is the same as that of the above-described embodiment, and therefore, the same components as those of the above-described embodiment are denoted by the same reference numerals as used in the description of the above-described embodiment, and description thereof is omitted.

With such a configuration, the plurality of belt-shaped sheets 21 bend by receiving pressure such as wind pressure.
Even if the gaps 25 and 38 are formed by separating the overlapping margins 39 of the side end portions 20 in the width direction of the adjacent belt-shaped sheet 21, the gaps 25 and 38 are securely formed on one or both sides by the gap closing sheet 26. Airtightly closed. In addition, when the adjacent strip-shaped sheet 21 is heated in the event of a fire, the adjacent strip-shaped sheet 21 contracts in the vertical direction, and the overlapping margin 39 of the side end 20 in the width direction of the adjacent strip-shaped sheet 21 is separated. Even if gaps 25 and 38 are formed,
25 and 38 are reliably airtightly closed from one or both sides by the gap closing sheet 26.

Next, in each of the above embodiments, the case where the side end gap closing sheet 30 is formed in a rectangular shape having substantially the same width in the vertical direction has been described. However, the present invention is not limited to this, and as shown in FIG. , The outer end 28 of the strip-shaped sheet 21 located at both ends
The overlap margin 35 of the side end gap closing sheet 30 that overlaps with the upper end may be formed in a shape having an arc-shaped protrusion 40 that protrudes in an arc toward the inside, and as shown in FIG. 11 may be formed in a shape having a rectangular protrusion 41 protruding in a rectangular shape. Further, as shown in FIG. It may be formed in the shape having.

The other components are the same as those in the above embodiments. Therefore, the same components as those in the above embodiments are denoted by the reference numerals used in the description of the above embodiments, and description thereof is omitted.

With this configuration, the belt-like sheets 21 located at both ends are bent by receiving pressure such as wind pressure, so that the side end gap closing sheet is formed along the belt-like sheet 21.
30 arc-shaped protrusions 40, rectangular protrusions 41, and mountain-shaped protrusions
The overlapping margins 35 having the respective flexures 42 are flexibly overlapped in an airtight manner, and between the outer end portions 28 of the strip-shaped sheets 21 located at both ends of the side end gap closing sheet 30 and the insertion openings 3 of the left and right guide rails 1. The gap 29 is reliably airtightly closed.

Next, in each of the above embodiments, each of the gap closing sheets 26 and each of the side end gap closing sheets 30 are formed in a rectangular shape having substantially the same width in the vertical direction, and the floor gap closing sheet 33 is formed of a sheet member. Although the case where the gap closing sheet 26 is formed in a rectangular shape having substantially the same width that is long in the width direction (horizontal direction) of 15 has been described, the gap closing sheet 26 is long in the vertical direction as shown in FIG. In a rectangular shape such as a rectangular shape, a large number of slits 43 in the width direction of the gap closing sheet 26 are formed at both end portions at predetermined intervals in the vertical direction, and each side end gap closing sheet 30 is In the rectangular shape such as the rectangular shape long in the vertical direction, a number of slits 44 in the width direction of the side end gap closing sheet 30 are formed at both ends at predetermined intervals in the vertical direction, and further, The floor gap closing sheet 33 is In a rectangular shape that is long in the direction, a large number of vertical slits 45 may be formed at the lower end thereof at predetermined intervals in the left-right direction.

The other components are the same as those of the above-described embodiments. Therefore, the same components as those of the above-described embodiments are denoted by the reference numerals used in the description of the respective embodiments, and the description is omitted.

With this configuration, the sheet member
When the gap closing sheet 26 is pressed from one surface on which the gap closing sheet 26 is arranged by a pressure such as wind pressure, the gap closing sheet 26 whose upper end is fixed and whose lower end is the free end 24 is an adjacent strip-shaped sheet.
While flexing along one side of the flexing of both end portions 20 of 21,
A gap closing sheet formed at predetermined intervals in the vertical direction
Numerous slits 43 in the width direction of 26 make the gap closing sheet 26
The overlapping margins 34 of the both side edges of the adjacent band-shaped sheet 21 are surely closely contacted with the both side ends 20 of the adjacent band-shaped sheet 21, and the gaps 25, 38 between the both side ends 20 of the adjacent band-shaped sheet 21 by the gap closing sheet 26. Are more securely airtightly closed, and both end portions of the adjacent belt-shaped sheet 21 are
The outflow of wind and the like from between 20 is prevented.

Further, the sheet member 15 is formed by the side end gap closing sheet 30.
When pressed by a pressure such as a wind pressure from one surface on which is disposed, the side end gap closing sheet 30 whose upper end is fixed and the lower end is the free end 27 is attached to one side of the adjacent belt-shaped sheet 21 which is bent. The insertion ends of both side edges of the side end gap closing sheet 30 are formed by a large number of slits 44 in the width direction of the side end gap closing sheet 30 formed at predetermined intervals in the vertical direction while being bent along.
31 is closely contacted with one side of the opening edge of the insertion opening 3 of the guide rail 1, and the guide rail 1 is
The gap 29 between the first and second insertion openings 3 is securely closed in an airtight manner.

Further, the sheet body 15 is a sheet for closing the floor gap.
When pressed by pressure such as wind pressure from one surface on which the 33 is disposed, one floor surface gap closing sheet 33 slides along the floor surface 14 so as to approach the other floor surface gap closing sheet 33. The floor gap closing sheet 33 is bent so as to be in close contact with the floor 14, and the gap 37 between the weight body 22 and the floor 14 is securely airtightly closed by the floor gap closing sheet 33. .

At this time, since the floor gap closing sheet 33 has a large number of slits 45 in the vertical direction at predetermined intervals in the left and right direction, the floor gap closing sheet 33 partially rises and the flow of wind or the like is generated. The outlet is not opened, and the lower end portion of the floor surface gap closing sheet 33 is closely adhered to the floor surface 14 while being easily deformed by the multiple slits 45.

Therefore, regardless of the direction in which the sheet body 15 is pressed by a pressure such as wind pressure from any direction, the gap between the weight body 22 and the floor surface 14 is formed by the floor gap closing sheet 33.
37 is reliably airtightly closed.

In each of the above embodiments, the floor gap closing sheet 33 protrudes downward from the weight body 22, curves in opposite directions, separates from each other, and comes into close contact with the floor 14. As a result, the sheet body 15 bends to one side in the front-rear direction due to pressure such as wind pressure or the like, and one or both of the sheet 16 and the plurality of strip-shaped sheets 21 are heated by fire heat and shrunk upward. Even if the weight body 22 is lifted, the gap 37 between the weight body 22 and the floor surface 14 is reliably airtightly closed by the floor gap closing sheet 33.

Next, in each of the above embodiments, the sheet 16
A plurality of band-shaped sheets 21 are juxtaposed with the widthwise side ends thereof adjacent to each other on the middle cross-member 17 at the lower end of the cross-section member 17 and a gap is formed along at least one surface of both side ends of these adjacent band-shaped sheets 21. The case where the closing sheet 26 is arranged and the gap 25 between the both end portions 20 of the adjacent strip-shaped sheet 21 is closed by the gap closing sheet 26 has been described. However, the present invention is not limited to this.
Alternatively, the side edges in the width direction of the plurality of strip-shaped sheets 21 may be overlapped with each other, and the gap 25 between the both side ends 20 of the adjacent strip-shaped sheets 21 may be closed.

In this case, for example, FIG. 13 and FIG.
As shown in the figure, a plurality of vertical belt-like sheets 46 are arranged side by side on the middle rail member 17 so as to overlap each other with side edges in the width direction being overlap margins 47.
The weight body 22 is attached to the lower end of 46, and a slit 48 in the width direction of the overlap margin 47 is formed in the overlap margin 47 of one of the adjacent strip-shaped sheets 46 at a predetermined interval in the vertical direction. .

The other configurations are the same as those in the above embodiments. Therefore, the same components as those in the above embodiments are denoted by the same reference numerals used in the description of the above embodiments, and description thereof will be omitted.

With this configuration, when the shielded portion 2 is shielded, the plurality of strip-shaped sheets 46 are respectively lowered simultaneously. At this time, both the insertion end portions 19 of the middle cross member 17, Both outer edges 49 of the belt-shaped sheet 46 located on both sides and both insertion ends 23 of the weight body 22 are respectively along the insertion openings 3 of the guide rails 1 on both sides, and the middle cross member 17 and the weight The plurality of belt-shaped sheets 46 are smoothly lowered by the weight of the body 22.

When the weight body 22 is placed on the floor surface 14 of the shielded portion 2, the shielded portion 2 is shielded by the sheet member 15 having the plurality of strip-shaped sheets 46. On this occasion,
The plurality of band-shaped sheets 46 are arranged side by side so as to overlap each other with both side ends in the width direction being overlap margins 47, and the weight bodies 22 are attached to their lower ends, so that the plurality of band-shaped sheets 46 The shielded portion 2 is reliably shielded in cooperation with the weight body 22 in a state where the overlap margins 47 at both end portions in the width direction are overlapped with each other.

As shown in FIG. 14, when the sheet body 15 is pressed from one side in the front-rear direction by pressure such as wind pressure, the plurality of belt-shaped sheets 46 are slightly bent in the pressing direction. However, at this time, the plurality of strip-shaped sheets 46 are formed by placing one overlap margin 47 having a number of slits 48 in the width direction of the overlap margin 47 formed at a predetermined interval in the vertical direction on the other overlap margin 47. By being in the superimposed state, the other overlap margin 47 bends in the pressing direction, and along the other overlap margin 47, one overlap margin 47 flexes smoothly with a number of slits 48. The overlapping margin 47 which is surely closely contacted with the other overlapping margin 47 and has this many slits 48
And the other overlap margin 47 is securely airtightly closed.

Therefore, the shielded portion 2 is entirely airtightly closed by the sheet member 15, and wind or the like may flow out from between the overlapping margins 47 on both side ends of the adjacent belt-shaped sheet 46. Is prevented.

In each of the above embodiments, the sheet member
Reference numeral 15 denotes a sheet 16 which is rewound freely on the winding drum 7.
And the case where the middle cross member 17 is fixed to the lower end portion of the sheet 16 has been described.
May be configured without using the seat 16 and the middle cross member 17.

In this case, for example, as shown in FIG. 15, the upper ends of a plurality of vertical belt-shaped sheets 50 are arranged side by side on the winding drum 7 with both side ends 51 in the width direction being separated from each other. The plurality of belt-shaped sheets 50
Is wound around the winding drum 7 so as to be freely rewound, and a weight body 52 in the left-right direction is attached to the lower ends of the plurality of strip-shaped sheets 50.

Further, the upper ends of vertical gap closing sheets 53 arranged along both front and rear sides of both end portions 51 of the adjacent belt-shaped sheet 50 are fixed to the winding drum 7, and these gaps are fixed. The closing sheet 53 is wound around the winding drum 7 so as to be freely rewound.
The lower ends of the 53 are free ends 54, and the front and rear gap closing sheets 53 close the gaps 55 formed by separating the both side ends 51 of the adjacent belt-like sheet 50 from both sides in the front-rear direction. It is supposed to.

Further, the upper ends of the vertical side end gap closing sheets 56 arranged along both surfaces of the strip-shaped sheet 50 located at the both ends are fixed to both sides of the winding drum 7, respectively. The lower ends of the side end gap closing sheets 56 are defined as free ends 57, and the outer ends of the band-shaped sheets 50 located at the both ends with the front and rear side end gap closing sheets 56.
A gap 59 formed between the insertion hole 3 of the left and right guide rails 1 is closed from both sides in the front-rear direction.

The weight 52 is provided with a floor gap closing sheet for closing the gap 60 between the weight 52 and the floor 14 from both sides in the front-rear direction, as in the above-described embodiments. Attach 61 each. Thus, each of the band-shaped sheets 50, each of the gap closing sheets 53, and each of the side end gap closing sheets 56 are provided with the shielded portion 2 when the weight body 52 having the floor surface gap closing sheet 61 has landed on the floor surface 14. Are formed to a length that shields them.

Since the other configuration is the same as that of each of the above embodiments, the same components as those of the above embodiments are denoted by the same reference numerals used in the description of the above embodiments, and description thereof is omitted.

With this configuration, each band-shaped sheet 50, each gap closing sheet 53, each side end gap closing sheet 56, and the weight body 52 having the floor surface gap closing sheet 61 are covered by the weight 52. A sheet body 15 for shielding the portion 2 is configured. When the shielded portion 2 is shielded by the sheet body 15, the sheet body 15
At 15, the shielded portion 2 is securely and hermetically shielded in the same manner as in the above embodiments.

When the sheet body 15 is pressed from one side in the front-rear direction by pressure such as wind pressure, each gap closing sheet is pressed.
53, each side end gap closing sheet 56 and floor surface gap closing sheet 61
In the same manner as in the above embodiments, the gap between them
55, 59, and 60 are securely hermetically closed, so that the shielded portion 2 is securely and hermetically shielded by the sheet body 15 as in the above-described embodiments as a whole. The property is prevented from being impaired.

Next, in the embodiment shown in FIG. 15, the gap closing sheet 53 and the side end gap closing sheet 56 do not necessarily have to be arranged along both front and rear sides of both ends of the belt-shaped sheet 50. The gap closing sheet 53 and the side end gap closing sheet 56 may be arranged along at least one surface of both side ends of the belt-shaped sheet 50. In this case, the gap closing sheet 53 and the side end gap closing sheet 56 are arranged on the same surface. Further, it is not always necessary to provide two sheets of the floor surface gap closing sheet 61,
It may be a sheet.

Next, in each of the above-described embodiments, the gaps 25 and 55 formed between the both end portions 20 and 51 of the adjacent strip-shaped sheets 21 and 50 are formed by the gaps 25 and 55 between the adjacent strip-shaped sheets 21 and 50. Both ends
Gap closing sheet before and after placed along the front and rear surfaces of 20, 51
The case of closing from both the front and rear sides at 26 and 53 has been described. However, the present invention is not limited to this, and the both ends 20 and 51 of the adjacent strip-shaped sheets 21 and 50 are sandwiched between the both ends of the gap closing sheets 26 and 53. It is preferable to configure the sheet member 15 so that the gaps 25 and 55 are closed in the above-described manner, and at the time of escape during a fire or the like, the escape is further facilitated.

In this case, for example, FIGS.
As shown in the figure, the upper end portions of the plurality of belt-shaped sheets 65 in the vertical direction are arranged on the winding drum 7 at relatively large intervals in consideration of escape from both side ends 66 in the width direction. The plurality of belt-shaped sheets 65 are wound around the take-up drum 7 so as to be freely rewound, and a left-right plate-shaped weight body is wound around the lower end of the plurality of belt-shaped sheets 65.
Attach 67.

[0130] Further, a vertical gap for closing the escape gap 68 formed at a relatively large interval formed between the both end portions 66 of the belt-shaped sheets 65 adjacent to the winding drum 7 and separated from each other. The upper ends of the closing sheets 69 are fixed to each other, and the gap closing sheets 69 are wound around the winding drum 7 so as to be freely rewound, respectively, and the lower ends of the gap closing sheets 69 are respectively set as free ends 70a. 67 are formed along the front and rear surfaces.

As shown in FIG. 20, the gap closing sheet 69 is formed with the adjacent belt-like sheet 65 having the gap 68 formed therein.
Is formed by two gap closing sheets 70 having a relatively large thickness and a relatively small thickness, which are formed with a width larger than the interval between both side ends 66, and an intermediate portion in the width direction of the two gap closing sheets 70 Are fixed integrally with each other by fixing means 71 such as a non-combustible adhesive or sewing thread in the vertical direction in a state of being directly joined. A clamping piece for clamping both side edges 66 of an adjacent belt-like sheet 65 from both sides
72 respectively.

When the two gap closing sheets 70 have a relatively large thickness, the gap closing sheet 70 is disposed between the intermediate portions in the width direction as shown in FIG.
As shown in the figure, with the non-combustible spacer 73 interposed, the intermediate portion of the two gap closing sheets 70 and the spacer 73 are vertically fixed to the fixing means 71 such as a non-combustible adhesive or sewing thread.
Are fixed together. The spacer 73 is formed to have substantially the same thickness as the side edges 66 of the adjacent belt-shaped sheet 65.

By fixing the intermediate portions of the two gap closing sheets 70 with the fixing means 71 via the spacers 73, the two gap closing sheets 70 are sandwiched at both ends in the width direction. The tip of the piece 72 is joined without being lifted from both side ends 66 of the adjacent strip-shaped sheet 65.

Further, the upper ends of the side end gap closing sheets (not shown) in the vertical direction, which are arranged along both surfaces of the strip-shaped sheet 65 located at the both ends, are fixed to both sides of the winding drum 7, respectively. The lower end portions of the side end gap closing sheets are free ends, and both end portions 66 of the strip-shaped sheet 65 located at the both ends of the front and rear side end gap closing sheets and the insertion openings 3 of the left and right guide rails 1 are provided. Is closed from both sides in the front-rear direction.

Further, the floor space closing sheets 33 and 61 for closing the space between the weight body 67 and the floor surface 14 from both sides in the front-rear direction are provided on the weight body 67 in the same manner as in the above embodiments. Attach each. Thus, each of the band-shaped sheets 65, each of the gap closing sheets 69, and each of the side end gap closing sheets (not shown) are
The weight body 67 having a floor gap closing sheet (not shown) is formed to have a length that shields the shielded portion 2 when the weight body 67 has landed on the floor surface 14.

Each of the band-shaped sheets 65, each gap closing sheet 69 in which both side end portions 66 of the band-shaped sheet 65 adjacent to each band-shaped sheet 65 are sandwiched by sandwiching pieces 72, and each side end not shown A sheet body 15 for shielding the shielded portion 2 is constituted by the gap closing sheet and a weight body 67 having a floor gap closing sheet (not shown). When the shielded portion 2 is shielded by the sheet body 15, The shielded portion 2 is securely and hermetically shielded by the sheet member 15 as in the above-described embodiments.

Since the other configuration is the same as that of each of the above embodiments, the same components are denoted by the same reference numerals as those of the respective embodiments, and the description is omitted.

With this configuration, the sheet body 15 is rewound from the winding drum 7 and lowered by rotation of the winding drum 7 in the rewinding direction, as in the above-described embodiments. The weight 67 having the floor gap closing sheets 33 and 61 at the lower end of the sheet body 15 is landed on the floor surface 14, so that the shielded portion 2 is reliably airtightly shielded by the sheet body 15. Is done.

[0139] Then, the sheet body 15 is
When pressed by pressure such as wind pressure from one surface or the other surface on which is disposed, the plurality of band-shaped sheets 65 and each of the gap closing sheets 69 are slightly bent in the pressing direction. Since the both end portions 66 of the adjacent strip-shaped sheet 65 are sandwiched between the sandwiching pieces 72 at both end portions of each gap closing sheet 69, the adjacent strip-shaped sheet 65 is located at each gap closing sheet 69. The gaps 68 formed at relatively large intervals formed between the both end portions 66 are reliably airtightly closed, so that wind or the like is prevented from flowing out between the both end portions 66 of the adjacent belt-shaped sheet 65. Further, even if the pressure fluctuates, the gap 68 between the both end portions 66 of the adjacent belt-shaped sheet 65 is reliably airtightly closed by the gap closing sheet 69, and the both end portions 66 of the adjacent belt-shaped sheet 65 are closed. Outflow of wind and the like from between is prevented.

That is, each of the gap closing sheets 69 is formed by two gap closing sheets 70 of substantially the same shape in which a substantially middle portion in the width direction is fixed by the fixing means 71. Strip-like sheet adjacent to the holding piece 72 at both ends of the
Even if the two gap closing sheets 70 receive pressure such as wind pressure from either direction of one surface or the other surface, since both end portions 66 of 65 are sandwiched from both surfaces,
Even if the directions of the pressures are reversed, the gaps 68 at relatively large intervals formed between the two end portions 66 of the adjacent strip-shaped sheet 65 by the two gap closing sheets 70 are reliably airtight. The wind or the like is prevented from flowing out from between the both end portions 66 of the adjacent belt-shaped sheet 65 which is closed.

When one gap closing sheet 70 of the two gap closing sheets 70 is bent in the pressing direction by receiving a pressure such as a wind pressure, the one gap closing sheet 70 is bent.
The other gap closing sheet 70 is prevented from being lifted up by being separated from the one gap closing sheet 70 by being fanned by wind pressure or the like caused by 70. Further, even if the direction of the pressure is reversed, when the other gap closing sheet 70 deflects in the pressing direction by receiving a pressure such as a wind pressure or the like, due to the wind pressure or the like caused by the other gap closing sheet 70. It is prevented that one gap closing sheet 70 is lifted by being separated from the other gap closing sheet 70 by being pushed.

At the time of escape in the event of a fire or the like,
The side of the band-shaped sheet 65 adjacent to the holding piece 72 by, for example, turning up the holding piece 72 of the gap closing sheet 70 on the near side in the escape direction in the two gap closing sheets 70 to the near side. By opening the gap between the end 66 and pressing the gap between the side end 66 of the adjacent belt-shaped sheet 65 and the holding piece 72 of the gap closing sheet 70 on the opposite side to open it, two sheets are formed. Strip-shaped sheet 65 adjacent to the holding piece 72 of the gap closing sheet 70 of FIG.
A relatively large gap 68 between the side end portion 66 and the side end portion 66 is easily opened, and the opening portion can easily escape as an exit.

In the above embodiment, each gap closing sheet 69
Is formed by two gap closing sheets 70 having a substantially middle portion in the width direction fixed by fixing means 71, and both side ends of the two gap closing sheets 70 are formed as sandwiching pieces 72, respectively. However, the present invention is not limited to this. Both end portions of the band-shaped sheet 65 adjacent to both end portions of one gap closing sheet 69 are described.
The holding pieces 72 for holding the holding member 66 may be formed.

Next, in each of the above embodiments using the gap closing sheets 26, 53, 69, one gap closing sheet 26, 53 formed separately from each of the band-like sheets 21, 53 is used.
The case where the gap closing sheets 26, 53, and 69 are arranged along both surfaces of both side ends of the 46 and 65, respectively, is not limited to this. For example, as shown in FIG. One gap closing sheet body 74 having a length arranged along both surfaces of both side ends of 21, 46, 65,
That is, one gap closing sheet 74 having a length substantially twice as long as the length of the one gap closing sheet 26, 53, 69 in the vertical direction is placed in the middle of the gap closing sheet 74 in the vertical direction. The bent portion 75 is fixed to the middle cross member 17 to form a fixing portion 76, and the two sheet portions 77 continuously facing the fixing portion 76 are formed on both sides of each of the belt-shaped sheets 21, 46, 65, respectively. A gap closing sheet to be placed along both sides of the end
It may be set to 78.

Since other configurations are the same as those of the above-described embodiments, the same components as those of the above-described embodiments are denoted by the reference numerals used in the description of the above-described embodiments, and descriptions thereof are omitted. However, for each of the belt-shaped sheets 21, 46, 65, only the reference numerals used in the first embodiment are entered in FIG. 25, and the reference numerals used in the other embodiments are omitted.

With such a configuration, the adjacent band-shaped sheets 21, 4 are provided with the gap closing sheets 78 disposed along both sides of both end portions of the respective band-shaped sheets 21, 46, 65.
The gaps 25, 29, 37, 55 between the both end portions of 6, 65 are closed to increase the airtightness of the gaps 25, 29, 37, 55, and the gaps 25, 29, 37, 55 are escaped. Easiness of escape is the same as in each of the above embodiments.

However, the gap closing sheets 78 respectively disposed along both sides of both end portions of each of the strip-shaped sheets 21, 46, 65.
Is formed by bending a gap closing sheet 74 having a length substantially double the length of the gap closing sheets 26, 53, 69 in the vertical direction, and bending the bent portion 75 to the middle cross section. By providing the fixing portion 76 for fixing to the member 17, the gap closing sheet 78 is formed on the middle cross member 17 as compared with the case of fixing the two separate gap closing sheets 26, 53, 69 to the middle cross member 17, respectively. It can be easily fixed, and can contribute to improvement of workability of configuring the sheet body 15 as a whole.

Next, in each of the above embodiments, the gap closing sheets 26, 53, 69, and 78 are provided with the respective gaps 25, 29, 37, and 55.
The case of forming only the sheet material having a size to close the gap is described, but the invention is not limited thereto.
6, 53, 69 and 78 have these gap closing sheets 26, 53, 69 and 7
The reinforcing material 79 in the width direction of 8 may be provided.

In this case, for example, FIGS.
As shown in FIG.
9, 78, that is, these gap closing sheets 26, 53, 6
A plurality of reinforcing members 79 are arranged side by side at predetermined intervals in the vertical direction (the height direction of the shielded portion 2) from the substantially middle portion in the vertical direction to the lower portion of the lower end of the lower portions 9 and 78. The gap closing sheets 26, 53, 69, 78 which are in contact with both side ends of the strip-shaped sheets 21, 46, 65 to be provided are formed to have a length having both ends 80 at both side ends in the width direction. Reference numeral 79 denotes a length substantially equal to the length in the width direction of the gap closing sheets 26, 53, 69, 78.

Each of the reinforcing members 79 is formed of, for example, a round bar, a flat bar, a wire, or the like. In the present embodiment, each reinforcing member 79 is a gap closing sheet.
Three pieces are arranged side by side at predetermined intervals at substantially middle parts, lower ends, and between them in the vertical direction of 26, 53, 69, 78.

Further, among the reinforcing members 79, the reinforcing members 79 provided at a substantially middle portion in the vertical direction of the gap closing sheets 26, 53, 69, 78 and below the substantially middle portion are provided. For example, as shown in FIG. 29, the gap closing sheets 26, 53, 6
A hollow reinforcing member formed by fixing the upper end and the lower end of a sheet piece 81 having substantially the same width as the gap closing sheets 26, 53, 69, 78 at the positions where the respective reinforcing members 79 are provided. It is inserted into the insertion portion 82 and provided.

The gap closing sheets 26, 53, 69, 78
For example, as shown in FIG. 30, the reinforcing member 79 provided at the lower end of each of the gap closing sheets 26, 53, 69, and 78 is formed by folding back the lower end of the gap closing sheet 26, 53, 69, 78.
Hollow reinforcing material insertion portion 84 fixedly formed on 3, 69, 78
It is provided by being inserted into. The sheet piece 81 and the folded piece 83 are fixed by means of an adhesive or sewing. The reinforcing material 79 inserted into each of the reinforcing material inserting portions 82 and 84
Are inserted in such a manner that they do not easily come out of the respective reinforcing member insertion portions 82 and 84.

Further, the gap closing sheet 26,
Even if two sheets 53, 69 and 78 are arranged along both sides of both sides of the adjacent strip-shaped sheets 21, 46 and 65, one sheet of the embodiment shown in FIG. May be formed by the gap closing sheet 78.

The reinforcing members 79 are provided on the gap closing sheets 26, 53, 69, 78 on one side arranged along one side of both side ends of the adjacent strip-shaped sheets 21, 46, 65. It may be provided on each of the gap closing sheets 26, 53, 69, 78 on both sides arranged along both sides of both side ends of the adjacent strip-shaped sheets 21, 46, 65. When the reinforcing members 79 are provided only on the gap closing sheets 26, 53, 69, and 78 on one side, each reinforcing member 79 is provided on one side which receives pressure such as wind pressure depending on the installation location of the screen device. It is good to provide on the gap closing sheets 26, 53, 69, 78 which are arranged on the side, and when the side receiving the pressure such as wind pressure is from both sides, as in the present embodiment, the gap closing on both sides is performed. It is preferable to provide each of the sheets 26, 53, 69 and 78.

The lower end portions of the gap closing sheets 26, 53, 69, and 78 having the reinforcing members 79 are in contact with each other so as to freely come and go.
Further, as shown in FIG. 30, the weight bodies 22 attached to the lower ends of the respective band-shaped sheets 21, 46, 65
Hollow receiving portions 86 formed by fixing folded pieces 85 obtained by folding the lower ends of 46 and 65 to the respective band-shaped sheets 21, 46 and 65.
And a flat bar 87 housed in the housing portion 86, and a pair of substantially L-shaped members fixed to both sides of the flat bar 87 with bolts and nuts 88 via both sides of the housing portion 86. And a landing board 89.

Further, the pair of landing plates 89 includes a vertical mounting plate portion 90 mounted on the flat bar 87 and a horizontal landing portion 91 to be landed on the floor surface 14 of the shielded portion 2. The landing section 91 and the flat bar
The lower end of 87 is arranged on the same plane and fixed integrally.

Since other configurations are the same as those of the above-described embodiments, the same components as those of the above-described embodiments are denoted by the same reference numerals used in the description of the above-described embodiments, and descriptions thereof are omitted. However, each gap closing sheet 26, 53, 69, 78
26 to 30, only the symbols used in the first embodiment are entered, and the symbols used in the other embodiments are omitted.

With such a configuration, the adjacent strip-shaped sheets 21, 46, 65 are disposed along the gap closing sheets 26, 53, 69, 78 disposed along both sides of both end portions of the respective strip-shaped sheets 21, 46, 65. , 46, 65, the gaps 25, 29, 37, 55 between both end portions are closed to increase the airtightness of the gaps 25, 29, 37, 55, and the gaps 25, 29, 37, 55 are removed. The easiness of escape as an outlet is the same as in the above embodiments.

At this time, the gap closing sheets 26, 53, 69, 78
Has a plurality of reinforcing members 79 in the width direction of the gap closing sheets 26, 53, 69, 78 located below the gap closing sheets 26, 53, 69, 78, so that the shielded portion 2 is formed. When shielded, the gap closing sheets 26, 5
3, 69, 78 hang down along both side edges of the adjacent strip-shaped sheets 21, 46, 65, and the gap closing sheets 26, 53, 69,
At 78, the gaps 25, 29, 37, 55 between both end portions of the adjacent belt-shaped sheets 21, 46, 65 are securely closed.

Further, at the time of escape in the event of a fire or the like, the gap closing sheets 26, 53, 69, 78 are separated from the both side ends of the adjacent belt-shaped sheets 21, 46, 65 so that the adjacent belt-shaped sheets are separated.
The gaps 25, 29, 37, and 55 between the two end portions of 21, 46, and 65 are opened, and the gaps 25, 29, 37, and 55 can be easily escaped as exits. The gap closing sheets 26, 53, 69, 78 are automatically moved in the direction of closing the gaps 25, 29, 37, 55 between both end portions of the adjacent strip-shaped sheets 21, 46, 65 by the weight of the reinforcing material 79. Return to this gap closing sheet
The gaps 25, 29, 37, and 55 between both end portions of the adjacent strip-shaped sheets 21, 46, 65 at 26, 53, 69, 78 are securely airtightly closed, and the adjacent strip-shaped sheets 21, 46, The wind and the like are prevented from flowing out from between both side ends of the 65.

Each reinforcing member 79 is formed of a belt-shaped sheet adjacent to the reinforcing member 79.
Gap closing sheets 26, 5 contacting both ends of 21, 46, 65
When the shielded portion 2 is shielded by having both end portions 80 at both end portions in the width direction of 3, 69, 78, the gap closing sheets 26, 53, 69, 78 are next to each other due to the weight of each reinforcing material 79. The belt-shaped sheets 21, 46, 65 hang down along both side edges of the belt-shaped sheets 21, 46, 65.
The gaps 25, 29, 37, 55 between both end portions of 21, 46, 65 are securely closed, but at this time, the gap closing sheets 26, 53, 69, 78 at both end portions 80 of each reinforcing member 79. The two side edges in the width direction are securely joined to both side edges of the adjacent belt-shaped sheets 21, 46, 65, so that wind or the like flows out between the both side edges of the adjacent belt-shaped sheets 21, 46, 65. Is prevented.

When the sheet member 15 is pressed by one of the surfaces on which the gap closing sheets 26, 53, 69, and 78 are arranged with a pressure such as wind pressure in a state where the shielded portion 2 is shielded, each reinforcing member 79 is pressed. Are bonded to both end portions of the adjacent strip-shaped sheets 21, 46, 65, so that the gap closing sheets 26, 53, 69, 78 are adjacently provided by the reinforcing members 79. Two
It is prevented from getting out in the pressing direction from between the both end portions of 1, 46, 65.

At this time, when the respective gap closing sheets 26, 53, 69, 78 are subjected to pressure such as wind pressure, the respective reinforcing members 79 are likely to bend the respective gap closing sheets 26, 53, 69, 78. Easy-to-remove parts, that is, these gap closing sheets 2
The gap closing sheets 26, 53, 69, 78 are subjected to pressure such as wind pressure by the reinforcing members 79 by being provided in the lower part from the substantially middle part in the vertical direction of 6, 53, 69, 78. However, the gap closing sheets 26, 53, 69, and 78 can be reliably prevented from coming out of the adjacent band-shaped sheets 21, 46, and 65 in the pressing direction.

Next, in the above embodiment, each of the reinforcing members 79 except for the reinforcing member 79 at the lower end is provided with each of the gap closing sheets 26 and 5.
The case where the sheet pieces 81 are fixed to 3, 69 and 78, respectively, and inserted into the reinforcing material insertion portion 82 formed as described above, but not limited to this, each reinforcing material 79 except the reinforcing material 79 at the lower end is inserted. For example, as shown in FIG. 31, each reinforcing member 79 is connected to a connection end portion 93 of a plurality of strip-shaped sheet pieces 92 in which the gap closing sheets 26, 53, 69, and 78 are separated at the mounting position of the reinforcing member 79. May be inserted into a reinforcing member insertion portion 82 formed in a hollow by a superposed portion 94 formed by connecting and overlapping each other, and as shown in FIG. 32, each of the gap closing sheets 26, 53, 6
It may be inserted into a hollow reinforcing member insertion portion 82 with a bag-like body 95 fixed to the mounting position of the reinforcing members 79 of 9, 78.

As shown in FIG. 33, each reinforcing member 79 is provided at a position where the reinforcing member 79 of each of the gap closing sheets 26, 53, 69, 78 is to be attached.
A folded overlap portion 96 obtained by folding the 78 itself and superimposing it may be formed by sewing together with a sewing thread 97.

Further, in each of the above embodiments, only a plurality of reinforcing members 79 in the width direction of each of the gap closing sheets 26, 53, 69, 78 are provided below the gap closing sheets 26, 53, 69, 78. The case of juxtaposition has been described, but the present invention is not limited to this. For example, as shown in FIG. 34, a plurality of reinforcing members 79 may be provided at substantially middle portions of the gap closing sheets 26, 53, 69, 78 in the vertical direction. The reinforcing members 79 are provided at the lower ends, and cross each other diagonally between the reinforcing members 79 at the substantially middle portion and the reinforcing members 79 at the lower end.
May be provided.

The reinforcing members 79 crossing each other in the diagonal direction are formed of a flexible member that can be wound around the winding drum 7 and unwound from the winding drum 7. Also, a reinforcing material at a substantially intermediate portion of each of the gap closing sheets 26, 53, 69, 78
79, the reinforcing material 79 at the lower end and the reinforcing material 79 crossing each other in the diagonal direction are the width of each of the gap closing sheets 26, 53, 69, 78 abutting on both side ends of the adjacent strip-shaped sheets 21, 46, 65. It is formed to have both ends 80 at both ends in the direction.

Each of the reinforcing members 79 is provided on each of the gap closing sheets 26, 53, 69, and 78 according to any one of the embodiments shown in FIGS. 29 to 33. The other configurations are the same as those in the above-described embodiments, and the description of these configurations will be omitted.

In the embodiment shown in FIGS. 31 to 34, the same operation and effect as those in the embodiment shown in FIGS. 26 to 29 can be obtained.

In the embodiment shown in FIGS. 26 to 34, the case where a plurality of reinforcing members 79 are juxtaposed below the gap closing sheets 26, 53, 69, 78 has been described. Not limited to this, the reinforcing material 79 is provided for each of the gap closing sheets 26, 53, 69,
A predetermined number may be juxtaposed at the top of 78,
Further, the reinforcing material 79 is not limited to the case where a plurality of reinforcing members 79 are provided below each of the gap closing sheets 26, 53, 69, 78.
At least one may be provided at a predetermined position in the vertical direction of 6, 53, 69, 78, and the reinforcing material 79 is the size of each gap closing sheet 26, 53, 69, 78, that is, the gap closing sheet.
The position and number of the sheets 26, 53, 69, 78 are determined arbitrarily according to the vertical length and the horizontal width, or the positions where the gap closing sheets 26, 53, 69, 78 are installed.

Further, the gap closing sheets 26, 53, 69, 78 having a plurality of reinforcing members 79 are connected to the adjacent strip-shaped sheets 21, 46,
When the shielded portion 1 is disposed along both the front and rear sides when viewed from the front, both sides of both end portions of the 65 are provided with a plurality of gap closing sheets 26, 53, 69, 78 provided on one side thereof. The reinforcing material 79 and the gap closing sheet 26 on the other side,
The plurality of reinforcing members 79 provided on 53, 69, 78 are respectively shifted in the vertical direction, that is, on both sides in the front-rear direction with both side ends of the adjacent strip-shaped sheets 21, 46, 65 interposed therebetween. For example, the reinforcing members 79 may be arranged so as not to interfere with each other, for example, in a state where they are alternately positioned.

With this configuration, the airtightness of each reinforcing member 79 on both sides can be further improved.

Next, in the above embodiment, as shown in FIG. 26, each of the gap closing sheets 26, 53, 69, 78 is provided with a reinforcing material 79 in the width direction of each of the gap closing sheets 26, 53, 69, 78. To
When the number of positions is provided in an arbitrary position and the number of positions is parallel in the vertical direction, and as shown in FIG.
These gap closing sheets 26, 53, 69 and 7 are attached to 6, 53, 69 and 78, respectively.
Although the case where the reinforcing members 79 intersecting each other in the diagonal direction of 8 are provided has been described, the present invention is not limited to this. For example, as shown in FIG.
Each of the gap closing sheets 26, 53, 69, 78 has a predetermined inclination from one side end to the other side end in the width direction. You may make it arrange | position in a zigzag shape in the up-down direction inclining at an angle.

In this case, the reinforcing members arranged in a zigzag shape
79 is formed of a flexible member that can be wound around the winding drum 7 and unwound from the winding drum 7. Further, each reinforcing member 79 is provided with each of the gap closing sheets 26, 53, by any one of the embodiments shown in FIGS. 29 to 33.
It is provided in 69 and 78. The other configurations are the same as those in the above-described embodiments, and the description of these configurations will be omitted.

In the embodiment shown in FIG. 35, the same functions and effects as those in the embodiments shown in FIGS. 26 to 29 and FIGS. 31 to 34 can be obtained.

Next, in the embodiment shown in FIGS. 34 and 35, each reinforcing member 79 is formed of a flexible member that can be wound around the winding drum 7 and unwound from the winding drum 7. However, the present invention is not limited to this. For example, when there is a margin in the size of the storage space of the ceiling of the shielded portion 2 for storing the screen box 5, each of the gap closing sheets 26 having the reinforcing material 79, 53, 69, 78 do not necessarily need to be wound on the winding drum 7, and in such a case, each reinforcing member 79 is not formed of a flexible member, and the gap closing sheet is not formed.
It may be formed of a member having rigidity capable of preventing the strips 26, 53, 69, 78 from coming out of the adjacent strip-shaped sheets 21, 46, 65 from both side ends in the pressing direction.

In each of the above embodiments, the screen box may not be provided depending on the situation such as the place where the screen is installed. In this case, the winding shaft is preferably supported by a bracket provided on a beam or the like of the building structure.

Further, the reinforcing members 79 and the reinforcing members
The members and the like forming the reinforcing material insertion portions 82 and 84 into which the 79 is inserted are preferably made of a nonflammable material.

[0179]

According to the first aspect of the present invention, the sheet member is
A plurality of strips in the vertical direction in which side edges in the width direction are juxtaposed to each other, a weight attached to the lower end of the plurality of strips, and the adjacent strips A vertical gap closing sheet that is arranged along at least one surface of both side ends and closes a gap between the side ends of the adjacent band-shaped sheet. The gap between the side edges of the sheet can be reliably closed, and the gap through which the hot air flows out between the side edges of the adjacent strip-shaped sheet is easily formed even when the sheet is fanned by the wind pressure of the hot air or the like. Therefore, even if the band-shaped sheet shrinks, there is no easy gap between the side edges of the adjacent band-shaped sheet for hot air or the like to flow out, and hot air or the like flows out to the floor surface. No gaps are formed, and therefore overall It is possible to provide a highly-tight screen device.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the gap closing sheet is provided along at least one surface of both side edges of the adjacent strip-shaped sheet with the lower end as a free end. Since it is arranged, when the sheet body is pressed by pressure such as wind pressure from one surface where the gap closing sheet is arranged,
The gap closing sheet having the lower end as a free end is closely contacted along one surface of both sides of the adjacent band-shaped sheet, and the gap between the both sides of the adjacent band-shaped sheet is surely secured by the gap closing sheet. And air can be reliably prevented from flowing out from between both end portions of the adjacent belt-shaped sheet.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect, the gap closing sheet has a reinforcing material in the width direction of the gap closing sheet. Due to the weight of the reinforcing material, the gap closing sheet hangs down reliably along both side edges of the adjacent belt-like sheet, and the gap between both side edges of the adjacent belt-like sheet can be reliably closed by the gap closing sheet.

Further, at the time of escape in the event of a fire or the like, the gap between the two side edges of the adjacent belt-shaped sheet can be easily opened by separating the gap closing sheet from the both edges of the adjacent belt-shaped sheet. You can easily escape through the gap as an exit,
After this escape, due to the weight of the reinforcing material, the gap closing sheet automatically returns toward the direction in which the gap between the two side edges of the adjacent strip-shaped sheet is closed, and both sides of the adjacent strip-shaped sheet with the gap closing sheet are used. The gap between the end portions can be reliably airtightly closed, and the flow of wind or the like from between both end portions of the adjacent belt-shaped sheet can be prevented.

According to the invention of claim 4, in addition to the effect of the invention of claim 3, since the reinforcing material has both ends at both ends in the width direction of the gap closing sheet, when the shielded portion is shielded, Both end portions in the width direction of the gap closing sheet can be securely joined to both end portions of the adjacent belt-shaped sheet at both ends of the reinforcing material, and wind or the like flows out between both end portions of the adjacent band-shaped sheet. Can be prevented.

When the sheet member is pressed by one of the surfaces on which the gap closing sheet is disposed, such as wind pressure, with the shielded portion shielded, both ends of the reinforcing member are placed on both sides of the adjacent strip-shaped sheet. The reinforcing members can be reliably prevented from coming off in the pressing direction from between the both side ends of the adjacent strip-shaped sheet.

According to the fifth aspect of the present invention, in addition to the effects of the first or second aspect, the gap closing sheet is formed on both side edges of the gap closing sheet at predetermined intervals in the vertical direction. Since the gap closing sheet has a large number of slits in the width direction, when the sheet body is pressed from one surface on which the gap closing sheet is disposed by pressure such as wind pressure, the upper end is fixed and the lower end is a free end. The gap closing sheet bends along one surface of both side edges of the adjacent band-shaped sheet, and the both side edges of the gap closing sheet are securely brought into close contact with both side edges of the adjacent band-shaped sheet by a number of slits. The gap between the two side edges of the adjacent belt-shaped sheet can be more reliably airtightly closed by the gap closing sheet, and the wind and the like can be reliably prevented from flowing out from between the two side edges of the adjacent belt-shaped sheet. it can.

According to the invention of claim 6, in addition to the effect of the invention of claim 1, both end portions of the adjacent strip-shaped sheet are held by the holding pieces at both end portions of the gap closing sheet. By this, the gap between the both side edges of the adjacent strip-shaped sheet can be reliably airtightly closed by the gap closing sheet, and the holding piece portion of the gap closing sheet can easily be closed from both side edges of the adjacent strip-shaped sheet. It is possible to prevent the wind or the like from flowing out from between the both end portions of the adjacent belt-shaped sheet without coming off.
Further, even if the pressure fluctuates, the gap between the both end portions of the adjacent belt-shaped sheet can be reliably airtightly closed by the gap closing sheet, and wind or the like flows out from between the both end portions of the adjacent belt-shaped sheet. Can be prevented.

According to the seventh aspect of the present invention, in addition to the effects of the first or sixth aspect, the two gap closing sheets have a substantially middle portion fixed in the width direction, so that the two gap closing sheets are fixed. Even if the closing sheet receives pressure such as wind pressure from either direction of the one side or the other side, or even if the direction of the pressure is reversed, the band-shaped sheet adjacent to the two gap closing sheets The gap between both side ends can be reliably airtightly closed, and the flow of wind or the like from between the two side ends of the adjacent belt-shaped sheet can be prevented.

Further, when one gap closing sheet receiving a pressure such as wind pressure is bent in the pressing direction, the other gap closing sheet is pushed by the wind pressure or the like caused by the one gap closing sheet, and the other gap closing sheet is moved by one wind. It can be reliably prevented from floating away from the gap closing sheet.

Further, in the case of escape in the event of a fire or the like, the holding piece portion of the gap closing sheet on the near side in the escape direction is turned up to the near side of the two gap closing sheets, for example. Opening between the one end portion and the side end portion of the adjacent belt-shaped sheet is performed, and pressing between the side end portion of the adjacent strip-shaped sheet and the sandwiching piece portion of the gap closing sheet on the opposite side is opened to open. Thereby, the gap between the sandwiching piece of the two gap closing sheets and the side end of the adjacent strip-shaped sheet can be easily opened, and the opening can be easily escaped as an exit.

According to the eighth aspect of the present invention, in addition to the effects of the first aspect, the belt-shaped sheets located on both sides are arranged along at least one surface of the outer end of the belt-shaped sheet. , Each having a vertical side end gap closing sheet for closing a gap between the outer end of the guide rail and the insertion opening of the guide rail, so that a plurality of band-shaped sheets and a gap closing sheet on both side ends of the adjacent band-shaped sheet are provided. The shielded portion can be shielded by a sheet body made of the side end gap closing sheet at the outer end of the band-shaped sheet, and at this time, the side end gap closing sheet is arranged along at least one surface of the outer end of the band-shaped sheet. With this configuration, the gap between the outer end of the belt-shaped sheet and the insertion opening of the guide rail can be reliably closed by the side end gap closing sheet.

Further, when the sheet body is pressed by a pressure such as wind pressure from one surface on which the gap closing sheet is disposed, the side end gap closing sheet comes into close contact with one side of the opening edge of the insertion opening of the guide rail, and The side end gap closing sheet can reliably and hermetically close the gap between the outer ends of the belt-shaped sheets located on both sides and the guide rails, and prevents the flow of air or the like from flowing out between them. it can.

According to the ninth aspect of the present invention, in addition to the effect of the eighth aspect of the present invention, the side end gap closing sheet is provided on the outer side of the band-shaped sheet whose upper end is fixed and whose lower end is a free end. Because it was located along at least one side of the end,
When the sheet body is pressed by a pressure such as wind pressure from one surface on which the side end gap closing sheet is disposed, the upper end is fixed and the lower end is a free end. The gap between the guide rail and the insertion opening of the guide rail can be reliably airtightly closed by this side end gap closing sheet which is in close contact with one side of the edge.

According to the tenth aspect of the invention, in addition to the effects of the eighth or ninth aspect, the side end gap closing sheet is provided with a predetermined interval in the vertical direction on the inner edge of the side end gap closing sheet. Since the side end gap closing sheet has a large number of slits in the width direction, the upper end portion is fixed when the sheet body is pressed from one surface on which the side end gap closing sheet is disposed by pressure such as wind pressure. The side end gap closing sheet having the lower end as a free end bends along one surface of the adjacent strip-shaped sheet, and the side edges of the side end gap closing sheet are formed by a number of slits so that the opening edges of the guide rail insertion opening. The gap between the guide rail and the guide rail insertion opening can be more reliably airtightly closed by the side end gap closing sheet which is in close contact with one side of the section.

According to the eleventh aspect of the present invention, in addition to the effect of the first aspect of the present invention, the weight body is placed on the floor surface of the shielded part when the shielded part is shielded, and is placed between the weighted body and the floor surface. Since the weight body has a floor gap closing sheet that closes the gap between the weight body and the floor surface of the shielded part, the weight body lands on the floor surface of the shielded part. Can be reliably closed.

When the sheet body is pressed from one side on which the floor space closing sheet is arranged by pressure such as wind pressure,
The floor gap closing sheet closely contacts the floor surface of the shielded portion, and the gap between the weight body and the floor surface of the shielded portion can be reliably airtightly closed by the floor gap closing sheet. .

According to the twelfth aspect of the present invention, in addition to the effect of the eleventh aspect, the floor surface gap closing sheet is protruded downward from the weight body and separated from each other in the opposite directions. Since the gap between the floor and the floor is closed from both sides, the gap between the weight and the floor of the shielded portion can be more reliably closed from both sides with the floor gap closing sheet.

Since the floor gap closing sheet separates in the opposite directions to close the gap between the floor and the floor from both sides, the sheet body is pressed by pressure such as wind pressure from any of the front and rear directions. Even in this case, the gap between the weight body and the floor surface of the shielded portion can be reliably airtightly closed by the floor surface closing sheet.

According to the thirteenth aspect of the present invention, in addition to the effects of any one of the first to tenth aspects, the weight body is landed on the floor surface of the shielded portion, so that a single tailored sheet is obtained. Further, the shielded portion can be reliably shielded by a sheet body including a plurality of band-shaped sheets, a gap closing sheet, a side end gap closing sheet, and a weight body fixed to the middle cross member at the lower end of the sheet. .

Further, when the sheet body is pressed by pressure such as wind pressure from one surface on which the gap closing and side end gap closing sheets are arranged, the gap closing sheet comes into close contact with one surface of both end portions of the adjacent belt-shaped sheet. Then, the gap between the both side ends of the adjacent belt-shaped sheet can be reliably airtightly closed by the gap closing sheet, and the side end gap closing sheet closely contacts one of the opening edges of the insertion opening of the guide rail. With this side end gap closing sheet, the gap between the guide rail and the insertion opening can be reliably airtightly closed.

Therefore, it is possible to prevent wind or the like from flowing out from between the both end portions of the adjacent belt-shaped sheet and between the outer end portions of the band-shaped sheet located on both side portions and the insertion opening of the guide rail. In addition, the shielded portion can be completely and completely shielded by the sheet member, the space therebetween can be reliably airtightly closed, and the closed state of these gaps can be reliably maintained.

According to the fourteenth aspect of the present invention, when the weight body is landed on the floor surface of the shielded portion, the shielded portion can be shielded by the sheet having the plurality of strip-shaped sheets.
At this time, the plurality of band-shaped sheets are arranged side by side so as to overlap each other with both side ends in the width direction being overlapped, and the weight members are attached to their lower ends, so that the plurality of band-shaped sheets are The shielded portion can be reliably shielded in cooperation with the weight body in a state where the overlap margins of both side ends in the direction are overlapped with each other.

When the sheet body is pressed from one side in the front-rear direction by pressure such as wind pressure, a plurality of belt-like sheets are formed at predetermined intervals in the up-down direction in the width direction of the overlap margin. Since one overlap margin having a slit is overlapped with the other overlap margin, one overlap margin is smoothly bent by a number of slits along the other overlap margin, and the other overlap margin is provided. In close contact with
The gap between the overlap margin having a number of slits and the other overlap margin can be reliably airtightly closed.

Therefore, the shielded portion can be completely airtightly closed by the sheet body as a whole, and it is possible to reliably prevent the wind or the like from flowing out of the overlapping margins of the both side ends of the adjacent belt-like sheet. .

According to the fifteenth aspect of the present invention, in addition to the effects of any one of the first to fourteenth aspects, a sheet formed of a non-combustible member, a plurality of strip-shaped sheets formed of a non-combustible member are provided. A gap closing sheet formed of a non-combustible member,
Fireproofing a predetermined section position in a building with a side end gap closing sheet formed of a noncombustible member, a floor gap closing sheet formed of a noncombustible member, and a weight body formed of a noncombustible member It is possible to provide a fire-resistant screen device that can be shielded as a section and reliably prevent the diffusion and spread of smoke in the event of a fire.

[Brief description of the drawings]

FIG. 1 is a front view of a screen device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a perspective view showing a part of the sheet body.

FIG. 4 is a cross-sectional view showing a state where the insertion end of the sheet member is inserted into the guide rail.

FIG. 5 is an explanatory view showing the operation of the sheet member, and FIG.
Is an end view of a part of the sheet body shielding the shielded part,
(b) is an end view of a part of the sheet body showing a gap closed state when receiving wind pressure from one side, and (c) is a partial end view of the sheet body showing a gap closed state when receiving wind pressure from the other side. It is an end elevation.

FIG. 6 is a perspective view of a part of a sheet member showing another embodiment.

FIG. 7 is a perspective view of a part of a sheet body showing still another embodiment.

FIG. 8A is a partial end view of a sheet body in which a gap closing sheet is arranged on one side of a band-shaped sheet, and FIG. 8B is a sheet body in which a gap closing sheet is arranged on both sides of the band-shaped sheet. It is an end elevation of a part.

FIG. 9 is a perspective view of a part of a sheet member showing still another embodiment.

FIG. 10 is a perspective view of a part of a sheet member showing still another embodiment.

FIG. 11 is a perspective view of a part of a sheet member showing still another embodiment.

FIG. 12 is a perspective view of a part of a sheet member showing still another embodiment.

FIG. 13 is a perspective view of a part of a sheet member showing still another embodiment.

FIG. 14 is a perspective view of a part of the sheet body in the bent state.

FIG. 15 is a perspective view of a part of a sheet member showing still another embodiment.

FIG. 16 is a front view of a screen device showing still another embodiment.

FIG. 17 is a side view of the same.

FIG. 18 is a perspective view of the sheet member.

FIG. 19 is a cross-sectional view of the same sheet member.

FIG. 20 is an enlarged cross-sectional view of the gap closing sheet showing a state where a side end portion of the band-shaped sheet is sandwiched.

FIG. 21 is an enlarged cross-sectional view of the gap closing sheet in a state where the gap is opened.

FIG. 22 is an enlarged cross-sectional view of another gap closing sheet showing a state where a side end portion of the band-shaped sheet is sandwiched.

FIG. 23 is a side view of a mounting portion of the weight body.

FIG. 24 is a side view showing a state where the sheet member is bent by being pushed.

FIG. 25 is an exploded perspective view of a sheet member showing still another embodiment.

FIG. 26 is a front view of a screen device showing still another embodiment.

FIG. 27 is a sectional view of the same.

FIG. 28 is an enlarged front view of the same gap closing sheet.

FIG. 29 is an enlarged end view showing a reinforcing member in the middle part of the above.

FIG. 30 is an enlarged end view showing the reinforcing material at the upper and lower ends.

FIG. 31 is an enlarged end view showing a reinforcing member in an intermediate portion according to another embodiment.

FIG. 32 is an enlarged end view showing a reinforcing member at an intermediate portion according to still another embodiment.

FIG. 33 is an enlarged end view showing a reinforcing member in an intermediate portion according to still another embodiment.

FIG. 34 is an enlarged front view of a gap closing sheet showing still another embodiment.

FIG. 35 is an enlarged front view of a gap closing sheet showing still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail 2 Shielding part 3 Insertion opening 14 Floor surface 15 Sheet 16 Sheet 17 Middle cross member 20, 51, 66 Side end 21, 46, 50, 65 Strip-shaped sheet 22, 52, 67 Weight 24, 27 , 54, 57, 70a Free end 25, 29, 37, 38, 55, 59, 60, 68 Clearance 26, 53, 69, 70, 78 Clearance sheet 28, 58 Outer end 30, 30 56 Sheets 33, 61 Floor gap closing sheets 34, 35, 39, 47 Overlap 43, 44, 45, 48 Slits 72 Nipping piece 79 Reinforcement 80 Both ends

Continued on the front page (51) Int.Cl. ⁶ Identification code FIE06B 9/17 CE (72) Inventor Kazuo Takeno 3-26-4 Shimura, Itabashi-ku, Tokyo Cultural Shutter Corporation (72) Invention Noriaki Iwase 3-26-4 Shimura, Itabashi-ku, Tokyo Cultural Shutter Inc.

Claims (15)

[Claims] 1. A guide rail which is fixed to both sides of a shielded portion and faces each other and has an insertion opening formed in a vertical direction, and both side ends in the width direction are inserted into the insertion openings of the guide rails on both sides. A sheet body that is inserted and vertically movable along the vertical direction and shields the shielded portion, wherein the sheet bodies are arranged side by side with a gap therebetween by separating the side ends in the width direction from each other. A plurality of strip-shaped sheets, a weight attached to the lower end of the plurality of strip-shaped sheets and landing on the floor surface of the shielded portion, and at least one of both side edges of the adjacent strip-shaped sheet. And a gap closing sheet that is arranged along the direction and closes a gap between both side ends of the adjacent strip-shaped sheet. 2. The screen device according to claim 1, wherein the gap closing sheet is disposed along at least one surface of both side ends of the adjacent strip-shaped sheet with a lower end as a free end. . 3. The screen device according to claim 1, wherein the gap closing sheet has a reinforcing material in a width direction of the gap closing sheet. 4. The screen device according to claim 3, wherein the reinforcing member has both end portions at both end portions in the width direction of the gap closing sheet. 5. The gap closing sheet has a plurality of slits in the width direction of the gap closing sheet formed on both side edges of the gap closing sheet at predetermined intervals in the vertical direction. The screen device according to claim 1. 6. The gap closing sheet according to claim 1, wherein the gap closing sheet has sandwiching pieces for sandwiching both side ends of a strip-shaped sheet provided adjacent to both side ends of the gap closing sheet from both sides. Screen device. 7. The gap closing sheet is formed by two gap closing sheets having substantially the same shape to which a substantially middle portion in the width direction is fixed, and is provided adjacent to both side end portions of the two gap closing sheets. The screen device according to claim 1, wherein a holding piece portion for holding both side end portions of the band-shaped sheet from both surfaces is formed. 8. The strip-shaped sheets located on both sides are arranged along at least one surface of the outer end of the strip-shaped sheet and close a gap between the outer end of the strip-shaped sheet and the insertion opening of the guide rail. The screen device according to claim 1, further comprising a side end gap closing sheet that is formed. 9. The side end gap closing sheet is characterized by being arranged along at least one surface of an outer end of a band-shaped sheet whose upper end is fixed and whose lower end is a free end and located on both sides. The screen device according to claim 8, wherein 10. The side end gap closing sheet has a plurality of slits in the width direction of the side end gap closing sheet formed on the inner edge of the side end gap closing sheet at predetermined intervals in the vertical direction. The screen device according to claim 8, wherein: 11. The weight body has a floor surface gap closing sheet that, when the shielded portion is shielded, lands on the floor surface of the shielded portion and closes a gap between the weighted body and the floor surface. The screen device according to claim 1, wherein 12. The floor gap closing sheet protrudes downward from the weight body and is separated from each other in opposite directions to block the gap between the floor and the floor from both surfaces. The screen device according to claim 11, wherein 13. A sheet body comprising: a single tailored sheet for shielding an upper part of a shielded portion having both side ends inserted into an insertion opening of a guide rail; and a middle rail member fixed along a lower end of the sheet. The screen device according to any one of claims 1 to 10, wherein each of the screen devices has a plurality of belt-shaped sheets, a gap closing sheet, and upper end portions of side end gap closing sheets. . 14. A guide rail fixed to both sides of the shielded portion and opposed to each other and having an insertion opening formed in a vertical direction, and both side ends in the width direction are inserted into the insertion openings of the guide rails on both sides. A sheet body that is inserted and vertically movable along the vertical direction and shields the shielded portion.The sheet bodies are arranged side by side in a state of overlapping each other with both side edges in the width direction overlapping. A plurality of strip-shaped sheets,
A weight body attached to the lower ends of the plurality of band-shaped sheets and landing on the floor surface of the shielded portion, and one of the overlapping portions of the adjacent band-shaped sheets is predetermined in the vertical direction. The screen device, comprising a plurality of slits in the width direction of the overlap margin formed at intervals. 15. The sheet body, a plurality of strip-shaped sheets, a gap closing sheet, a side end gap closing sheet, a floor gap closing sheet, and a weight body are each formed of a nonflammable member. The screen device according to claim 1.