JPH10165531A - Fire resisting screen device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire resisting screen device which sufficiently makes a contribution in such a way that smoke, etc., at the time of fire is surely prevented from flowing-out and escape and rescue actions are easily executed without the danger of stumbling so that refuge, guidance and rescue actions, etc., are quickly executed. SOLUTION: The device is provided with a flame-retardant fire resisting sheet body 14 being freely elevating/lowering possible to shield a shielded part 2, plural flame-retardant fire resisting sheet pieces 15 which are juxtaposed and fixed in a state where both side edge parts in a width direction are mutually superimposed 1 as an overlapping mergin 16 in the lower end part of the flame-retardant fire resisting sheet body 14 and a flame-retardant weight body 20 for landing the lower end parts of the flame-retardant fire resisting sheet pieces 15 on a floor surface 19 at the time of lowering. The plural flame-retardant fire resisting sheet pieces 15 are arranged by being mutually deviated in position one by one from one end part towards the other end part and the adjacent fire resisting sheet pieces 15 are made to be mutually separation possible towards an opposite side. The free end parts 18 of the plural flame-retardant fire resisting sheet pieces 15 are provided with a bag-shaped part 22 in the width direction of the fire resisting sheet pieces 15 and the flame-retardant weight body 20 consists of flame-retardant particular objects contained inside the bag-shaped part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refractory screen device, and more particularly to a device for preventing the spread of smoke and the spread of fire in a fire.

[0002]

2. Description of the Related Art Conventionally, as a refractory screen device of this type, as described in Japanese Patent Application Laid-Open No. 8-164218, for example, a winding shaft is installed horizontally and mutually connected to the winding shaft. A number of band-shaped sheets are wound around one end so that both ends in the width direction are in contact with and adjacent to each other, and a number of band-shaped sheets hanging down are provided. A configuration is known in which magnets for attracting both ends of the bar-shaped weight adjacent to both ends of each bar-shaped weight are attached, and magnets for attracting a metal plate installed on a floor surface are attached to the lower surface of each bar-shaped weight. I have.

[0003]

In the configuration described in the above publication, the screen is composed of a large number of belt-like sheets whose both ends in the width direction overlap each other. Smoke at the time of a fire, etc. is easy to flow out from between the overlapping margins over the entire length of the bar, and both ends of the bar-shaped weight at the lower end of each band-shaped sheet are adsorbed to each other, and the floor weight is attached to each bar-shaped weight. Since the metal plate is adsorbed and the whole bar-shaped weights are fixed in series as a whole, the bar-shaped weights cannot be easily separated from each other in an emergency of escape or rescue operation, and there is a risk of tripping on the bar-shaped weights. There is a problem that rescue operations are easily alienated, which may be a cause of an unexpected situation, and that the repetition is uneconomical.

[0004] The present invention has been made in view of the above points, it is possible to reliably prevent the outflow of smoke and the like at the time of fire, easy escape and rescue activities, there is no danger of stumbling, there is no overlap margin. It is an object of the present invention to provide a fire-resistant screen device which is less expensive and economical, and which can sufficiently contribute to quick and smooth evacuation, guidance, rescue activities, and the like.

[0005]

According to a first aspect of the present invention, there is provided a fire-resistant screen device, comprising a flame-retardant fire-resistant sheet capable of moving up and down to shield a shielded portion, and a lower end portion of the fire-resistant fire-resistant sheet having respective widths. A plurality of fire-retardant fire-resistant sheet pieces in the vertical direction, which are fixed side by side so as to overlap each other with the two side edges in the direction overlapping each other and can be separated from each other with their lower ends as free ends, and the plurality of fire-resistant fire-resistant sheet pieces in the vertical direction And a flame-retardant weight body which is provided at a lower end portion of the flame-retardant fire-resistant sheet member and causes the lower end portion of the flame-retardant fire-resistant sheet piece to land on the floor surface of the shielded part when the fire-resistant fire-resistant sheet body descends. Things.

Then, the flame-retardant fire-resistant sheet is lowered, and the lower end of each flame-retardant fire-resistant sheet piece is landed on the floor of the shielded part by the flame-retardant weight, so that the shielded part is entirely covered. In the closed state, the entirety is closed from the lower part to the upper end of the part to be closed by the flame-retardant refractory sheet made of one sheet. Thus, since the flame-retardant refractory sheet body is made up of one sheet having no overlapping margin for overlapping with each other, it is possible to prevent smoke or the like at the time of fire from flowing out of the flame-retardant fire-resistant sheet body.

Further, since the lower end portions of the plurality of fire-retardant fire-resistant sheet pieces are placed on the floor, the free end portions of the respective fire-retardant fire-resistant sheet pieces are set at the respective flame-retardant weights. Supported, and each flame-retardant refractory sheet piece is supported with adjacent overlap margins superimposed on each other,
Each of the flame-retardant refractory sheet pieces is supported in a state where it is difficult for smoke or the like at the time of fire to flow out between the overlap margins.

Further, since each flame-retardant weight is provided at the lower end of each flame-retardant fire-resistant sheet piece, and each flame-retardant weight is independent of each other, it is necessary to escape or rescue. By pushing and opening the flame-retardant fire-resistant sheet piece at a predetermined position, the flame-retardant weight is moved integrally with the fire-resistant fire-resistant sheet piece, and the escape exit and the rescue operation opening are easily opened. There is no danger of tripping the flame-retardant plumb bob.

After passing through the exit or rescue service opening, the weight of the flame-retardant weight of the flame-resistant fire-resistant sheet piece having the opening or exit opened. Automatically returns to the direction in which the closed part is closed, the weight of the flame-retardant weight re-embeds, and the overlap of both ends of the flame-retardant fire-resistant sheet piece of the adjacent fire-resistant fire-resistant sheet piece Exits and rescue operations are closed at the same time.

[0010] Therefore, in a fire situation or the like, the shielded part is completely closed completely, and at the time of evacuation, guidance, and rescue operations, the exit and rescue opening are easily opened and closed, and these activities are performed quickly and smoothly. You will be

According to a second aspect of the present invention, there is provided the fire-resistant screen device according to the first aspect, wherein the plurality of flame-retardant fire-resistant sheet pieces are arranged from one end to the other end in the width direction of the fire-resistant fire-resistant sheet body. The refractory sheet pieces are arranged so as to be alternately shifted one by one so that adjacent refractory sheet pieces can be separated toward opposite sides.

When the shielded portion is closed by the flame-retardant fire-resistant sheet and the respective flame-retardant fire-resistant sheet pieces, the flame-retardant fire-resistant sheet at a selected position among the respective flame-retardant fire-resistant sheet pieces. By means of the piece, for example, by pushing the flame-retardant refractory sheet piece from one side to the other side and from the other side to the one side, the exit or the rescue operation opening is easily opened.

According to a third aspect of the present invention, in the refractory screen apparatus according to the first or second aspect, the free ends of the plurality of flame-retardant refractory sheet pieces are formed along the width direction of the refractory sheet pieces. And the flame-retardant weight body is made of a flame-retardant particulate material accommodated in the bag-like portion.

When the flame-retardant weight is landed on the floor, the flame-retardant particulates of the flame-retardant weight enhance the landing effect of blocking the floor from the floor. Can be In addition, even if there is some unevenness on the floor surface, the fluidity of the flame-retardant particulate matter can reliably shut off the space from the floor surface. Furthermore, since the flame-retardant particulates are contained in the bag-shaped part, they can be landed without damaging the floor when they land on the floor, and they can be used as metal rods when opening and closing the exit and rescue opening. It opens and closes without the dangers of things.

[0015]

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

Numerals 1 denote vertical left and right guide rails which are vertically fixed to opposing side walls of the shielded portion 2 respectively. The left and right guide rails 1 have guide grooves 3 formed on opposing inner surfaces. Are respectively formed to have a substantially U-shaped cross section.

A screen box 5 into which 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 shielded portion 2, and the screen box 5 is attached to a lower end portion. There are left and right guide grooves 6 which are open to communicate with the guide grooves 3 of the left and right guide rails 1 respectively. The shielded portion 2 refers to an opening such as an entrance, an emergency exit, and a passage.

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 has the take-up shaft 8 rotated. The rotating wheel 9 to be driven is fixed. A forward / reverse rotatable motor 10 is fixed in the screen box 5 below the rotating wheel 9.
A drive wheel 12 is fixed to the position 11 opposite to the rotating wheel 9, and an endless revolving body is provided between the driving wheel 12 and the rotating wheel 9.
13 is suspended freely. And the motor 10
Is decelerated and transmitted to the winding shaft 8.

Next, one end (upper end) of a flame-retardant fire-resistant sheet body 14 that can move up and down to shield the shielded portion 2 is fixedly wound around the winding drum 7, and is wound around the drum. The sheet member 14 is guided by the left and right guide rails 1 when the winding drum 7 is rewound, and is lowered to close the shielded portion 2. The flame-retardant refractory sheet body 14 is formed in a sheet shape using a single-piece flame-retardant cloth made of glass cloth, silica cloth or the like.

At the lower end of the flame-retardant refractory sheet 14, a plurality of pieces of the flame-retardant refractory sheet in the vertical direction from one end in the width direction to the other end thereof. Fifteen
Are arranged side by side and fixed in a substantially goodwill shape. The plurality of flame-retardant refractory sheet pieces 15 are each formed in a strip shape with a single-layered flame-retardant cloth or the like made of glass cloth, silica cloth, or the like, and have both side edges in the width direction of a predetermined width. Layering allowance
It is formed as 16.

The plurality of flame-retardant refractory sheet pieces
15 are arranged side by side in such a manner that the overlapping margins 16 are alternately shifted from one end to the other end in the width direction of the flame-retardant refractory sheet body 14 one by one in the front-rear direction to overlap each other, That is, a front sheet piece 15a arranged on the front side,
On the rear side of the overlap margin 16 of the front sheet piece 15a, the rear sheet margins 15b on which the overlap margin 16 is overlapped are alternately arranged one by one, and the respective overlap margins 16 are arranged side by side so as to overlap each other. The upper end of each of the flame-retardant refractory sheet pieces 15 is airtightly and integrally sewn to the lower end of the flame-retardant refractory sheet body 14 with a flame-retardant sewing thread 17.

Then, each of the flame-retardant refractory sheet pieces 15
The lower end of each is suspended with the respective overlap margins 16 overlapping each other with the lower ends thereof as free ends 18. Further, in a state where the respective overlap margins 16 are overlapped with each other and hung down, the adjacent flame-retardant refractory sheet pieces 15
Are separated from each other in opposite directions about a sewn portion sewn with the sewing thread 17.

Next, at the lower end of each of the flame-retardant fire-resistant sheet pieces 15, the respective flame-retardant fire-resistant sheet pieces 15 are placed on the floor surface 19 of the shielded portion 2 when the fire-resistant fire-resistant sheet body 14 descends. Each of the flame-retardant weight bodies 20 for landing the lower end of the body is provided. The flame-retardant weight body 20 is a piece of each of the flame-retardant fire-resistant sheet pieces.
15 is composed of a free end 18 at the lower end and flame-retardant particulates 21 such as sand and lead particles.

Each of the free ends 18 has a bag-shaped portion 22 which is deformable along the width direction of the refractory sheet piece 15 and is formed in a flat shape. The lower end of the refractory sheet piece 15 is folded back in an arc shape, and the folded piece 23 is integrally sewn to the refractory sheet piece 15 with a flame-retardant sewing thread 24.

Further, the flame-retardant particulate matter such as
Are stored in the respective bag-shaped portions 22. The flame-retardant particulate matter 21 has fluidity without being solidified integrally. Each of the flame-retardant weights is formed by the bag-like portion 22 and the flame-retardant particulate matter 21 sealed in the bag-like portion 22.
Numeral 20 is formed in a substantially flat bar shape so as to be deformable so that it can land on the floor surface 19 in an airtight manner.

Thus, the flame-retardant weight body 20 is formed to have a length from the outer end to just before the overlap allowance 16 at the inner end of the front sheet piece 15a disposed at both ends, and is formed at the intermediate portion. The front sheet piece 15a to be arranged is formed to have a length excluding the overlap margin 16 at both ends, and each rear sheet piece 15b arranged to the rear side is formed to have a length including the overlap margin 16 to both ends. .

Therefore, the shielded portion 2 is closed by the front sheet pieces 15a and the rear sheet pieces 15b, and the lower ends of the sheet pieces 15a and 15b are landed by the respective flame-retardant weights 20. In this state, each of the flame-retardant weights 20 is joined at their ends facing each other in the axial direction, so that the gap between the facing overlap margins 16 does not greatly open due to the thickness of the flame-retardant weights 20. The overlapping allowances 16 overlap each other sufficiently.

The flame-retardant refractory sheet 14, each flame-retardant refractory sheet piece 15, the flame-retardant weight 20, and the flame-retardant sewing threads 17, 24
Is resistant to the heat of fire and difficult to burn.

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

In the event of a fire, the motor 10 is operated to
When the take-up shaft 8 is rotated in the direction of rewinding the flame-retardant refractory sheet 14 by the output from the motor 10, or when the brake of the motor 10 is released by a fire signal from a control panel (not shown) or the like, this take-up is performed. The flame-retardant refractory sheet 14 is guided by the guide grooves 3 of the left and right guide rails 1 while being sequentially rewound by the winding drum 7 of the shaft 8, and is lowered.

The lower end of each of the flame-retardant refractory sheet pieces 15 connected to the lower end of the flame-retardant fire-resistant sheet 14 is attached to the floor surface 19 of the shielded portion 2 by the flame-retardant weight 20. When the landing is performed and the operation of the motor 10 is stopped, the shielded portion 2 is completely closed by the flame-retardant fire-resistant sheet body 14 and each of the flame-retardant fire-resistant sheet pieces 15, and the flame-retardant fire-resistant sheet The sheet body 14 and each of the flame-retardant refractory sheet pieces 15 partition the airtight state on the side opposite to the front side, thereby preventing the spread of smoke and the spread of fire.

At this time, a single flame-retardant fire-resistant sheet is provided from the lower part to the upper end of the shielded part 2 where smoke rises.
At 14, the fire-retardant fire-resistant sheet body 14 is made of a single sheet without overlapping margins 16, so that smoke or the like at the time of fire flows out of the fire-resistant fire-resistant sheet body 14. Is prevented.

Further, the lower end portions of the plurality of flame-retardant refractory sheet pieces 15 are respectively landed on the floor surface 19 by the flame-retardant weights 20, so that each of the flame-retardant weights 20 is provided. The free end portions 18 of the respective flame-retardant fire-resistant sheet pieces 15 are supported, and the respective flame-retardant fire-resistant sheet pieces 15 are supported in a state in which adjacent overlapping margins 16 are overlapped with each other. The refractory sheet pieces 15 are each supported in a state where it is difficult for smoke or the like at the time of fire to flow out from between the overlapping margins 16.

Each of the flame-retardant weights 20 is provided at the lower end of each of the flame-retardant refractory sheet pieces 15 and is independent of each other. At the time of activity, etc., the flame-retardant refractory sheet piece 15 at a predetermined position is pushed open, whereby the flame-retardant weight body 20 is moved integrally with the flame-retardant refractory sheet piece 15, and the exit and rescue are performed. The opening is easily opened and there is no danger of tripping the flame-retardant weight body 20.

At this time, the plurality of flame-retardant refractory sheet pieces 15 are
The flame-retardant refractory sheet 14 is disposed so as to be alternately shifted one by one from one end to the other end in the width direction of the flame-retardant refractory sheet 14 so that adjacent refractory sheet pieces 15 can be separated toward opposite sides. By using the flame-retardant fire-resistant sheet piece 15 at a selected position in each of the flame-retardant fire-resistant sheet pieces 15, for example, from one side to the other side and from the other side to the one side, By pushing the sheet piece 15, the exit and the rescue opening are easily opened.

That is, when each rear sheet piece 15b is opened as an exit or a rescue opening, the rear sheet piece 15b at a predetermined position is pushed open from the near side to the opposite side, and each front sheet piece 15a is opened. When the opening is used as an exit or a rescue operation port, the exit sheet or the rescue operation port is easily opened from both directions by pushing and opening the front sheet piece 15a at a predetermined position from the opposite side toward the front side.

After passing through the exit or rescue service opening, the flame-retardant refractory sheet piece 15 having the exit or rescue operation opening opened becomes the flame-retardant weight of the flame-retardant fire-resistant sheet piece 15. By the weight of 20, it automatically returns to the direction to close the shielded part 2,
The lower end of the flame-retardant fire-resistant sheet piece 15 is landed again by the flame-retardant weight body 20, and the overlap margin 16 at both ends of the fire-resistant fire-resistant sheet piece 15 is adjacent to the fire-resistant fire-resistant sheet piece. Exits and rescue operations are closed at the same time as 15 overlaps.

Further, the flame-retardant refractory sheet 14 and the respective flame-retardant sheet pieces 15 are lowered, and the lower end portions of the respective flame-retardant fire-resistant sheet pieces 15 are landed on the respective flame-retardant weights 20. When closing the exit and rescue operation opening and landing the lower end of each flame-retardant fire-resistant sheet piece 15 with each flame-retardant weight body 20, The flame-retardant particulate matter 21 enhances the landing effect of blocking the space from the floor surface 19. In addition, even if there is some unevenness on the floor surface 19, the fluidity of the flame-retardant particulate matter 21 ensures the separation from the floor surface 19.

Further, since the flame-retardant particulate matter 21 is accommodated in the bag-like portion 22, it can land on the floor surface 19 without being damaged by an impact when landing on the floor surface 19, It can be opened and closed without the danger of metal bars when opening and closing rescue operations.

Therefore, in a fire situation, etc., the shielded part 2 such as an entrance, an emergency exit and a passage is completely closed completely, and the escape exit and the rescue operation opening are easily opened and closed during evacuation, guidance, and rescue operations. Activities will be carried out quickly and smoothly.

Next, in the above embodiment, an emergency exit mark which is pushed from the near side to the opposite side is displayed on each rear sheet piece 15b, and each front sheet piece 15a is displayed from the opposite side to the near side. By displaying the emergency exit marks that are pushed toward each other, that is, by displaying the emergency exit marks on the opening side, evacuation, guidance, rescue operations, and the like can be performed more quickly and orderly without confusion.

Next, in the above-described embodiment, the case where the plurality of flame-retardant fire-resistant sheet pieces 15 are provided on the wind-up type fire-resistant fire-resistant sheet body 14 wound around the winding drum 7 has been described.
The present invention is not limited to this. The plurality of flame-retardant fire-resistant sheet pieces 15 are provided on a foldable fire-resistant fire-resistant sheet body 14 in which a wire or a belt is wound around the winding drum 7 and the fire-resistant fire-resistant sheet body 14 is pulled up and folded. You may do so.

[0043]

According to the first aspect of the present invention, the flame-retardant refractory sheet body and the plurality of flame-retardant fire-resistant sheet pieces are lowered, and the lower end of the flame-retardant fire-resistant sheet piece has a flame-retardant weight body. At the time of landing on the floor surface and closing the shielded part, the upper part of the shielded part where smoke rises with a one-piece tailored fire-resistant fireproof sheet body, this fire-resistant fireproof sheet body is Since there is no overlapping margin that overlaps with each other, it is possible to reliably prevent the smoke and the like at the time of fire from flowing out with this flame-retardant fire-resistant sheet.

A plurality of vertically extending fire-resistant fire-resistant sheet pieces provided at the lower end of the fire-resistant fire-resistant sheet are juxtaposed and fixed so as to overlap each other with their side edges in the width direction overlapping. Since the part is a free end, the lower part of the shielded part can be closed with each flame-retardant refractory sheet piece where the overlapping margin overlaps to prevent the smoke etc. at the time of fire from flowing out. By pushing and opening the flammable refractory sheet, the escape exit and the rescue operation opening can be easily opened, and the escape and the rescue operation can be quickly performed with less confusion.

Further, since the flame-retardant weights are provided at the lower end of each of the flame-retardant fire-resistant sheet pieces, the flame-retardant weights can be easily lifted from the floor by pushing and opening the flame-retardant fire-resistant sheet pieces. This can prevent the danger of tripping on the flame-retardant weight body at the time of escape from the exit or rescue operation from the rescue operation opening.

Further, since the both sides of each flame-retardant refractory sheet piece in the width direction are overlapped, no overlap margin is required for the flame-retardant refractory sheet body, so that the overlap margin is partially partial and economical as a whole. It is a target.

Therefore, it is possible to provide a fire-resistant screen device which can prevent smoke from spreading or spreading in the event of a fire with a simple structure, and which can sufficiently contribute to quick and smooth evacuation, guidance, rescue activities, and the like. Can be.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the plurality of flame-retardant refractory sheet pieces extend from one end to the other end in the width direction of the flame-retardant refractory sheet. The adjacent refractory sheet pieces can be separated from each other in the opposite direction by disposing them alternately one by one. When the is closed, push the flame-retardant fire-retardant sheet piece at the selected position out of each of the flame-retardant fire-retardant sheet pieces from either direction before or after the shielded part to easily open the exit or rescue opening. Can be easily opened in a safe direction.

According to the third aspect of the invention, in addition to the effects of the first or second aspect, the free ends of the plurality of flame-retardant fire-resistant sheet pieces are formed along the width direction of the fire-resistant sheet pieces. Since the flame-retardant weight body is made of the flame-retardant particulate matter contained in the bag-like part, the lower end of the flame-retardant fire-resistant sheet piece is formed by the flame-retardant weight body. When the part is landed on the floor, the flame-retardant particulates of the flame-retardant weight can enhance the landing effect of blocking the floor from the floor. Further, even if there is some unevenness on the floor surface, the fluidity of the flame-retardant particulate matter can surely shut off the floor surface. In addition, since the flame-retardant particulates are stored in the bag-shaped part, they can land on the floor without damaging the floor when they land on the floor. Can be opened and closed without risk of injury.

[Brief description of the drawings]

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

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged explanatory view showing an escape state in which the flame-retardant refractory sheet piece is pushed open.

[Explanation of symbols]

 2 Shielded part 14 Flame-retardant refractory sheet 15 Flame-retardant refractory sheet 16 Overlap 18 Free end 19 Floor 20 Flame-retardant weight 21 Flame-retardant particulate matter 22 Bag-like part

Claims (3)

[Claims] 1. An ascending / descending fire-retardant fire-resistant sheet body that shields a shielded portion, and a lower end portion of the fire-resistant fire-resistant sheet body, which is overlapped with each other by overlapping both side edges in the width direction. A plurality of vertically extending flame-retardant refractory sheet pieces which are installed and fixed and can be separated from each other with a lower end part as a free end part; And a flame-retardant weight body for landing the lower end of the flame-retardant fire-resistant sheet piece on the floor surface of the shielded part when descending. 2. A plurality of fire-retardant fire-resistant sheet pieces are arranged alternately one by one from one end to the other end in the width direction of the fire-retardant fire-resistant sheet body. 2. The refractory screen device according to claim 1, wherein the pieces are separable toward opposite sides. 3. A free end portion of each of the plurality of fire-retardant sheet pieces has a bag-like portion formed along the width direction of the fire-resistant sheet pieces. The fire-resistant screen device according to claim 1, wherein the screen device is made of a flame-retardant particulate material contained in a part.