JP2952225B2 - Fireproof screen equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof screen device, and more particularly to a fireproof screen device which shields a predetermined position in a building as a fire protection compartment to prevent the spread of smoke and the spread of fire in a fire.

[0002]

2. Description of the Related Art Conventionally, as this type of refractory screen device, for example, as described in Japanese Patent Application Laid-Open No. 8-164218, a winding shaft is provided horizontally at the upper end of a shielded portion. A number of band-shaped sheets made of refractory fibers which are wound at one end so as to be in contact with and adjacent to the winding shaft and are unwound and hung downward when the shielded portion is shielded, and at the lower end of the number of band-shaped sheets. A rod-shaped weight having a length substantially equal to the width of each strip-shaped sheet, which is individually attached and adjacent ends are separably connected by a magnet,
A configuration is known in which a metal plate that is attracted to a magnet on the lower surface of each rod-shaped weight is installed on the floor surface of the shielded portion.

[0003]

In the configuration described in the above-mentioned publication, a large number of strip-shaped sheets need to be cut into the same length according to the height of the portion to be shielded. Since it is made of fire-resistant fiber, it is not easy to cut each band-shaped sheet into the same length, and when there is an error in the length of each band-shaped sheet, each bar-shaped weight attached to the lower end of these band-shaped sheets is used. In addition, a gap is easily formed between the side ends of the adjacent strip-shaped sheets when the adjacent ends of the rod-shaped weights are joined to each other by a magnet, and a gap is also formed between the adjacent ends of the bar-shaped weights and the floor surface. There is a problem that they are easily formed and the airtightness is easily impaired as a whole.

[0004] Further, since bar-shaped weights are individually attached to the lower end portions of a large number of strip-shaped sheets, when these strip-shaped sheets are heated by fire heat, the strip-shaped sheets are irregularly heat-shrinked and deformed to be adjacent to each other. There is a problem that the side edges of the strip-shaped sheet are separated from each other, and a gap through which hot air or the like flows out is easily formed therebetween.

Further, since a large number of belt-shaped sheets hang down in a state in which both end portions in the width direction are in contact with each other and lie adjacent to each other, when these numerous belt-shaped sheets are blown by wind pressure such as hot air, the adjacent belt-shaped sheets are bent. There is a problem that a gap between contacting and adjacent side ends is separated and a gap through which hot air or the like flows out is easily formed therebetween.

The present invention has been made in view of such a problem, and even if there is an error in the length of a plurality of non-combustible strip-shaped sheets for shielding a portion to be shielded, the plurality of non-combustible strip-shaped sheets are used. The incombustible weight body attached to the lower end of the insulated sheet is variably adjusted in the vertical direction so that the incombustible weight body can be securely and airtightly landed on the floor surface of the shielded part. Even when the non-combustible belt-shaped sheet is heated by fire heat and contracts due to heat shrinkage, or even when fanned by wind pressure such as hot air, a gap is formed between the side end portions of the adjacent non-combustible band-shaped sheet where hot air or the like flows out. Therefore, it is an object of the present invention to provide a fireproof screen device which is entirely airtight.

[0007]

According to a first aspect of the present invention, there is provided a refractory screen device comprising: a guide rail which is fixed to both sides of a shielded portion and has an insertion opening formed in a vertical direction so as to face each other; A take-up drum rotatably provided above between the guide rails, and a pair of guide rail insertion openings at the both sides in the width direction at the time of rewinding and rewinding around the take-up drum. A non-combustible sheet body that is lowered in the inserted state and shields the shielded portion, wherein the non-combustible sheet bodies are arranged side by side in a state of being overlapped on each other with both side ends in the width direction as overlap margins. a plurality of incombustible strip sheet, incombustible heavy with a weight attached body Ru provided at the lower end of the plurality of incombustible sheet strip, the landing part for landing on the floor of the front Symbol the hidden portion A weight, and the non-combustible weight attached to the weight mounting body. And weight mounting means for mounting freely position adjustment in the vertical direction, was closed, the plurality of non-combustible strip
The sheets are arranged on both sides and the overlapping margins at the side edges in the width direction are alternated.
At least two non-combustible strips
Sheet and these two non-combustible strips
Overlap margins on both sides along each side of
To the middle non-combustible strip that is placed
The weight mounting body is disposed on the both sides.
A flat tubular portion formed at the lower end of the non-combustible strip-shaped sheet,
It is composed of a metal plate inserted in these flat cylindrical portions.
It is a thing.

When a non-combustible weight is attached to the lower end of a plurality of non-combustible strips, the take-up drum is rotated in a direction in which the plurality of non-combustible strips are rewound. , A plurality of non-combustible belt-shaped sheets are simultaneously rewound and lowered respectively, and both outer ends of the non-combustible band-shaped sheets arranged on both sides are lowered while being inserted into insertion openings of guide rails on both sides. .

In addition, the weight mounting body at the lower end of the plurality of non-combustible strip-shaped sheets is lowered to a predetermined position on the floor surface of the shielded portion, and the rotation of the winding drum is stopped. To stop the rewinding and lowering of the plurality of non-combustible belt-shaped sheets.

Further, the established non retardant weight body onto the floor surface of the shielding portion located immediately below the weight attachment member, the lower end of the incombustible weight body several sheets double incombustible sheet strip The vertical movement of the non-combustible weight body is adjusted with respect to the weight mounting body, and the non-combustible weight body is attached to the weight mounting body by the weight mounting means in a state where the landing portion of the non-combustible weight body is in close contact with the floor surface. Attach.

Therefore, even when the plurality of non-combustible strips have an error in length, the non-combustible weight is attached to the weight mounting body at the lower end of the plurality of non-combustible strips in the vertical direction. The non-combustible weight body can be easily mounted on the weight mounting body in such a manner that the landing part can be securely and airtightly landed on the floor surface of the shielded part.

And a plurality of non-combustible strip-shaped sheets, a weight attachment body at the lower end of the plurality of non-combustible strip-shaped sheets,
The non-combustible weight body attached to the weight mounting body constitutes a non-combustible sheet body that entirely covers the shielded portion.

In a non-fire situation, when the winding drum is rotated in the direction in which the non-combustible sheet is wound, the non-combustible sheet is sequentially wound around the winding drum and the non-combustible sheet at the lower end thereof is wound. The weight body is largely lifted from the floor surface, and the winding of the non-combustible sheet body is stopped at a predetermined position, whereby the shielded portion is opened as a passage in the non-combustible sheet body.

Next, in the case of shielding a shielded portion such as in a fire, when the winding drum is rotated in a direction to rewind the non-combustible sheet, a plurality of non-combustible sheets of the non-combustible sheet are discharged from the winding drum. sex belt-like sheet is rewound lowered simultaneously each incombustible in a state where both ends of the arranged incombustible belt-like sheet to the both sides is inserted into the insertion opening of the side portions of the guide rail
Sex seat body is lowered in by squirrel smoothly on the weight of the non-flammable weight body.

Then, the landing portion of the non-combustible weight is landed on the floor surface of the shielded portion, the rotation of the winding drum is stopped, and the non-combustible sheet is unwound from the winding drum. Stop descending.

At this time, the non-combustible weight body is adjusted and attached to the weight attachment body at the lower end of the plurality of non-combustible strip-shaped sheets so that the landing section can be air-tightly placed on the floor surface. For,
The non-combustible sheet body is lowered, and the non-combustible weight body at the lower end thereof is landed on the floor surface, so that the landing section of the non-combustible weight body is securely and air-tightly landed on the floor surface. . Accordingly, the non-combustible sheet member securely and hermetically shields the shielded portion as a whole.

Further, when the non-combustible sheet body which shields the shielded portion is pressed from one side by wind pressure such as hot air, the plurality of non-combustible strip-shaped sheets slightly bend in the pressing direction. However, at this time, the plurality of non-combustible belt-shaped sheets are arranged side by side in a state where they are overlapped with each other at both ends in the width direction, and a weight attachment body is provided at the lower end thereof. The overlapping margins of adjacent non-combustible belt-shaped sheets are flexed and closely contacted, and the two end portions of the adjacent non-combustible belt-shaped sheets do not easily separate from each other, and a gap is formed between them to allow hot air or the like to flow out. Is prevented.

Therefore, the shielded portion is completely shielded completely by the non-combustible sheet member, and even when the non-combustible sheet member is fanned by wind pressure, the shielded portion is reliably airtight by the non-combustible sheet member. , And this shielding state is maintained.

[0019]

Further, when the incombustible sheet material shielded from the hidden portion is pressed by the wind pressure of the hot air or the like, although the plurality of incombustible belt-like sheet will be bent somewhat towards the pressing direction, respectively, the In this case, the non-combustible sheet material is disposed in such a manner that the overlap margins at both end portions of the intermediate non-combustible belt-shaped sheet are overlapped with each other along both sides of the separated superimposition space of the non-combustible belt-shaped sheets on both sides. No matter which direction is pressed from one direction or the other by the wind pressure of hot air or the like, the overlapping margins of adjacent non-combustible belt-shaped sheets are bent and closely contacted, and both sides of this adjacent non-combustible band-shaped sheet The end portions are not easily separated from each other, and a gap from which hot air or the like flows out is prevented from being formed therebetween.

According to a second aspect of the present invention, there is provided a fireproof screen device according to the first aspect, wherein the weight mounting means includes a non-combustible strip-shaped sheet provided on one of the weight mounting body and the non-combustible weight body. A plurality of vertical mounting holes formed at predetermined intervals in the width direction, a plurality of communication holes formed on the other side and communicating with the plurality of mounting elongated holes, and a plurality of communication communicating with each other. And a plurality of bolts respectively inserted through the holes and the plurality of mounting elongated holes, and nuts screwed onto the plurality of bolts, respectively.

Then, the weight attachment body at the lower end of the plurality of non-combustible strip-shaped sheets is lowered to a predetermined position on the floor surface of the shielded portion and stopped, while the weight attachment body located immediately below the weight attachment body is stopped. On the floor of the shielding part, install the non-combustible weights with the insertion parts at both ends inserted into the insertion openings of the guide rails on both sides, and from each mounting long hole or each communication hole of this non-combustible weight. A bolt is inserted into each of the communication holes or the respective mounting long holes of the weight mounting body, and the non-combustible weight body is vertically moved with respect to the weight mounting body via the bolts. The non-combustible weight body is securely attached to the weight attachment body by screwing and tightening a nut to each bolt in a state where the landing part of the body is in close contact with the floor surface.

Therefore, even if the plurality of non-combustible strips have an error in length, the non-combustible weight is attached to the weight mounting body at the lower end of the plurality of non-combustible strips in the vertical direction. The non-combustible weight body can be easily mounted on the weight mounting body in such a manner that the landing part can be securely and airtightly landed on the floor surface of the shielded part.

The refractory screen device according to claim 3, wherein, in the fire screen device according to claim 1 Symbol placement, incombustible weight body is constituted by a first weight divided form and a second weight , the first weight and the second weight has a clamping plate for clamping the landing portion and the weight attached body from both sides, respectively, the holding plate has a multiple attachment long hole or a plurality of communication holes To have.

Then, the weight mounting body at the lower end of the plurality of non-combustible belt-shaped sheets is lowered to a predetermined position on the floor surface of the shielded portion and stopped, while the weight mounting body located immediately below the weight mounting body is stopped. A first weight and a second weight are respectively set on the floor surface of the shielding unit, and the holding plates of the first weight and the second weight abut against both surfaces of the weight mounting body, respectively. each mounting slot of the weight attachment member from the first of each communication holes or the mounting slots of the weight or
Or each communication hole and each communication hole of the second weight or each mounting length
Bolts are inserted into the holes , and the first weight and the second weight are vertically moved and adjusted with respect to the weight mounting body via the bolts.

Then, with the landing portions of the first weight and the second weight being in close contact with the floor, respectively, nuts are screwed onto the bolts and tightened, whereby the first weight is tightened. Both surfaces of the weight attachment body are sandwiched between the holding plates of the weight and the second weight, and these are fixed, so that the non-combustible weight body is securely attached to the weight attachment body.

When it is necessary to adjust the mounting position of the noncombustible weight body, for example, when an error occurs in the length of a plurality of noncombustible strip-shaped sheets, each nut is loosened with each bolt. The first weight and the second weight are vertically moved and adjusted with respect to the weight mounting body via bolts, and the landing portions of the first weight and the second weight are respectively placed on the floor surface. By tightening the nuts in the closely contacted state, the mounting position of the non-combustible weight body can be easily adjusted and fixed at a predetermined position.

The refractory screen device according to claim 4, wherein, in the fire screen device according to claim 1 Symbol placement, incombustible sheet body, winding wound freely rewind drum rewinding guide rail both side ends at A single noncombustible sheet that is lowered while being inserted into the insertion opening and shields the upper part of the shielded part, and fixed along the lower end of the noncombustible sheet, and ends when unwinding the noncombustible sheet. And a middle cross member which is lowered while being inserted into the insertion opening of the guide rail, wherein the upper ends of the plurality of non-combustible strip-shaped sheets are respectively fixed to the middle cross member.

In the case of shielding the shielded portion in the event of a fire or the like, when the winding drum is rotated in the direction in which the non-combustible sheet is rewound, the non-combustible sheet is rewound down from the winding drum. However, at this time, the one-piece tailored noncombustible sheet is lowered with both side ends in the width direction inserted into the guide rail insertion openings on both sides, and the middle rail member is inserted into the guide rail insertion openings at both ends. is lowered by the state, it is lowered at a plurality of states in which both outer ends of the incombustible sheet strip located on both sides in the incombustible sheet strip is inserted into the insertion opening of the side portions of the guide rail.

Further, the landing portion of the non-combustible weight is landed on the floor surface of the shielded portion, the rotation of the winding drum is stopped, and the non-combustible sheet is unwound from the winding drum. The descent is stopped.

At this time, the non-combustible weight body is adjusted and attached to the weight mounting body at the lower end of the plurality of non-combustible strip-shaped sheets so that the landing section can be air-tightly landed on the floor surface. For,
The non-combustible sheet body is lowered, and the non-combustible weight body at the lower end thereof is landed on the floor surface, so that the landing section of the non-combustible weight body is securely and air-tightly landed on the floor surface. . Accordingly, the non-combustible sheet member securely and hermetically shields the shielded portion as a whole.

[0032]

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

In FIGS. 1 and 2, reference numeral 1 denotes a vertical left and right guide rail fixed vertically to opposite side walls of the shielded portion 2 such as an entrance, an emergency exit and a passage. The left and right guide rails 1 have front and rear vertical guide pieces 3 provided in parallel to each other, and vertical insertion slots 4 formed by the front and rear guide pieces 3 and facing each other and opened. It is formed in a substantially U-shaped cross section.

A screen box 6 into which the upper ends of the left and right guide rails 1 are inserted is fixed to an upper side wall 5 such as an upper frame of the upper end of the shielded portion 2. Left and right guide ports 7 are formed at the lower ends and open to communicate with the insertion ports 4 of the left and right guide rails 1 respectively.

A winding shaft 9 having a left-right winding drum 8 is rotatably mounted in the screen box 6, and one end of the winding shaft 9 rotates the winding shaft 9. The rotating wheel 10 to be driven is fixed. A forward / reverse rotatable motor 11 is fixed in the screen box 6, and a drive wheel 13 is fixed to an output shaft 12 of the motor 11 at a position facing the rotating wheel 10. An endless rotating body 14 is suspended between the rotating wheel 10 and the rotating wheel 10.

The motor 11 is operated by an output signal such as a fire signal from control means (not shown). The output of the motor 11 is decelerated and transmitted to the winding shaft 9. Further, the motor 11 is detected by the detecting means when a non-combustible weight body described later lands on the floor surface 15 of the shielded part 2, and is stopped by the control means which has input a detection signal from the detecting means. The operation is stopped by a signal.

Next, an upper end portion of a non-combustible sheet body 16 that can move up and down and shields the shielded portion 2 is fixedly wound around the winding drum 8, and the non-combustible sheet body 16 is wound around the winding drum 8. When the drum 8 is rewound, it is lowered in a state where both side ends in the width direction are inserted into the insertion openings 4 of the left and right guide rails 1, and a non-combustible weight described below is attached to the floor surface 15 of the shielded portion 2. The floor is to be shielded from the shielded portion 2.

The non-combustible sheet 16 is made up of a single non-combustible sheet 17 for shielding the upper part of the shielded portion 2 or a single non-combustible sheet 17 sewn together. A plurality of non-combustible strip-shaped sheets 18 attached to the lower end of the sheet, a middle rail member 19 for fixing the lower end of the non-combustible sheet 17 and the upper end of the plurality of non-combustible strip-shaped sheets 18, A weight mounting body 20 provided at the lower end of the non-combustible strip-shaped sheet 18; and a non-combustible weight body 22 which is attached to the weight mounting body 20 in a vertically adjustable manner by weight mounting means 21. , Is configured.

The upper end of the non-combustible sheet 17 is fixed to the take-up drum 8 and is rewound freely. Both ends in the width direction of the non-combustible sheet 17 are inserted into the insertion openings 4 of the left and right guide rails 1. It has an insertion portion 23 that is vertically movably inserted, and has a retaining ridge 24 having a diameter larger than the thickness of the non-combustible sheet 17 along the lower end thereof. I have. The retaining ridge 24 is provided on the non-combustible sheet 17.
Turn the lower end of the non-combustible thread 25 such as stainless steel thread
A cylindrical portion 25 formed by sewing at a, and a rod-shaped core material 26 inserted into the cylindrical portion 25 are formed.

The plurality of non-combustible belt-like sheets 18
Are arranged side by side in a state where they are overlapped with each other with the both ends in the width direction as an overlap allowance 27.
Are three non-combustible belt-shaped sheets 18a, 18b arranged on both sides and arranged side by side with the overlap margin 27 at the side end in the width direction separated from each other.
, 18c and the non-combustible strip sheets 18a, 18b, 18c
The overlap allowance 27 on both sides along both sides of the overlap allowance 27
And two intermediate non-combustible strip-shaped sheets 18d and 18e arranged in a state of being superposed on each other.

Then, the three non-combustible strip-shaped sheets 18a
, 18b and 18c are formed by folding the upper ends of the non-combustible strip sheets 18a, 18b and 18c along their upper ends and sewing them with non-combustible threads 28 such as stainless steel threads. Each has a cylindrical portion 29, and the weight mounting body 20 is provided at a lower end thereof.

The weight attachment body 20 is a hollow flat sheet formed by folding the lower end of each of the non-combustible strip-shaped sheets 18a, 18b, 18c and sewing it with a non-combustible thread 31 such as a stainless steel thread. A cylindrical portion 32, and a metal plate 34 such as an elongated iron plate having projections 33 inserted into the flat cylindrical portion 32 and having both ends projecting outward from both end edges of the flat cylindrical portion 32, The flat tubular portion 32 and the metal plate 34 are formed with a plurality of vertically long mounting elongated holes 35 that penetrate each other at predetermined intervals in the width direction of the non-combustible strip-shaped sheets 18a, 18b, 18c. Have been.

The metal plate 34 is provided with each of the non-combustible strip-shaped sheets 18a,
It is not limited to one independent member for each of 18b and 18c,
A series of ones common to each non-combustible strip 18a, 18b, 18c
It may be a book member.

Further, the three non-combustible belt-like sheets 18a,
Among the non-combustible belt-shaped sheets 18a, 18c located at both ends of the two guide rails 18b, 18c, the left and right guide rails 1 are provided at both outer ends.
Have insertion portions 36 inserted vertically into the insertion openings 4.

Further, the three non-combustible strip-shaped sheets 18a
, 18b, 18c, one metal round bar 37 is inserted into each hollow cylindrical portion 29 at the upper end, and the three non-combustible strip-shaped sheets 18a, 18b and 18c are arranged side by side with a margin 27 at the side end spaced apart from each other by a predetermined distance.
In addition, the non-combustible belt-shaped sheets 18a, 18c located at both end portions
The insertion portions 36 at both outer ends of the guide rails 1 are disposed at positions where the insertion portions 36 can be vertically inserted into the insertion openings 4 of the left and right guide rails 1.

Each of the hollow cylindrical portions 29 and the portion of the round bar 37 inserted into each of the hollow cylindrical portions 29 has a retaining protrusion having a diameter larger than the thickness of the non-combustible strip-shaped sheets 18a, 18b, 18c. 38 are formed respectively.

The two intermediate non-combustible strips disposed between the non-combustible strip 18a and the non-combustible strip 18b and between the non-combustible strip 18b and the non-combustible strip 18c, respectively. Each of the non-combustible belt-like sheets 18a, 18b, 18c is formed to have a length approximately twice as long as the vertical length of each of the non-combustible strip-like sheets 18a, 18b, 18c.
A plurality of vertically long mounting elongated holes 40 communicating with the adjacent mounting elongated holes 35 are formed in the vicinity of both side ends of the free ends thereof by folding back and folding downward as 39. I have.

Then, the two intermediate non-combustible belt-like sheets 18
d and 18e are located between the non-combustible strip sheet 18a and the non-combustible strip sheet 18b, and between the non-combustible strip sheet 18b and the non-combustible strip sheet 18c, so that the folded portion 39 has the round bar 37. , Each of which is supported by
27 are superimposed on both sides of the overlap margin 27 of the adjacent non-combustible strip-shaped sheets 18a, 18b and 18c, and the mounting slots 40 at both lower end portions thereof communicate with the adjacent mounting slots 35. ing.

Next, the middle cross member 19 is formed of a first middle cross frame 41 and a second middle cross frame 41 in the width direction of the incombustible sheet 17 formed in a divided manner.
And a middle rail frame 42. And the first
The middle cross frame 41 has a vertical plate portion 43 and upper and lower horizontal plate portions projecting in parallel with both side edges in the width direction of the vertical plate portion 43.
44, and a plurality of screw insertion holes 45 are formed in the vertical plate portion 43 at predetermined intervals in the length direction thereof.

Further, the second middle cross frame 42 is provided with a vertical contact plate portion 46 which is in contact with a vertical intermediate portion of the vertical plate portion 43.
And upper and lower horizontal plate portions 47 protruding parallel to and opposed to the upper and lower horizontal plate portions 44 at both side edges in the width direction of the contact plate portion 46, and the upper and lower horizontal plate portions 47. Upper and lower vertical plate portions 48 protruding in opposite directions to each other and facing the protruding end portions of the upper and lower horizontal plate portions 44, respectively. A plurality of screw holes 50 are respectively formed at predetermined intervals in the direction and are respectively connected to the plurality of screw insertion holes 45 and screwed with a plurality of fixing screws 49 made of flathead screws inserted from the plurality of screw insertion holes 45. ing.

Then, by fixing the second middle rail frame 42 to the first middle rail frame 41 with the plurality of fixing screws 49,
The non-combustible sheet is formed by an upper holding portion 51 formed between a projecting end of the horizontal plate portion 44 above the first middle cross frame 41 and a vertical plate portion 48 above the second middle cross frame 42. 17 Retaining ridge at the lower end
The sewn portions 52 are sandwiched from both sides, and the upper and lower horizontal plate portions 44 of the vertical plate portion 43 of the first middle rail 41 are connected to the second horizontal portion 44.
The non-combustible sheet 17 is accommodated in an upper accommodation portion 53 formed by an upper horizontal plate portion 47 and an upper vertical plate portion 48 of the middle cross frame 42.
Are housed in a state in which the retaining ridge 24 at the lower end of the retaining member is retained.

The upper holding portion 51 and the upper storage portion 53
Is formed, and at the same time, a lower holding portion formed by the protruding end of the horizontal plate portion 44 below the first middle rail frame 41 and the vertical plate portion 48 below the second middle rail frame 42 At 54, the sewn portion 55 of the retaining ridge 38 at the upper end of the plurality of non-combustible strip-shaped sheets 18
Are sandwiched from both sides, and the lower and lower horizontal plate portions 44 and the lower horizontal plate portion 47 and the lower vertical plate portion of the vertical plate portion 43 of the first middle rail frame 41 and the lower portion of the second middle rail frame 42 And a plurality of the non-combustible strip-shaped sheets 18 in the lower accommodation portion 56 formed by
The retaining ridge 38 at the upper end of the retaining member is housed in a retaining state.

Next, the non-combustible weight body 22 is composed of a first weight 57 and a second weight 58 which are formed separately.
The first weight 57 includes a main body frame 59 having a U-shaped cross section, a plate-shaped landing portion 60 formed at a lower end portion of the main body frame 59,
A vertical holding plate 61 formed at an upper end portion of the main body frame 59 and abutting against one side surface of the weight mounting body 20; and the holding plate 61 is attached to the weight mounting member at a predetermined interval. The body 20 has a plurality of communication holes 62 that communicate with the respective mounting elongated holes 35.

The second weight 58 includes a main body frame 63 having a U-shaped cross section, a plate-shaped landing portion 64 formed at the lower end of the main body frame 63, and the main body frame 63. A vertical holding plate 65 formed at the upper end of 63 and in contact with the other side surface of the weight mounting body 20
The holding plate 65 has a plurality of communication holes communicating with the respective mounting long holes 35 of the weight mounting body 20 and the respective communication holes 62 of the first weight 57 at predetermined intervals. Has 66.

The plurality of communication holes 62 of the holding plate 61 of the first weight 57 are used to form a plurality of mounting holes 35 of the weight mounting body 20 and a plurality of holding plates 65 of the second weight 58. A plurality of bolts 67 are inserted into the communication holes 66, and nuts 68 are detachably screwed into the plurality of bolts 67, respectively.

Each mounting slot 35 of the weight mounting body 20
Each communication hole 62 of the first weight 57, and the second weight
58 and each of the plurality of bolts inserted therethrough
The weight mounting means 21 is constituted by a 67 and a plurality of nuts 68 which are detachably screwed to the bolts 67 respectively.

Further, the middle cross member 19 has, at both ends, insertion portions 69 which are inserted into the insertion openings 4 of the guide rails 1 on both sides so as to be able to move up and down. The non-combustible weight body 22 has, at both ends, insertion portions 70 which are inserted into the insertion openings 4 of the guide rails 1 on both sides so as to be able to move up and down.

Thus, the non-combustible sheet 17 and the plurality of non-combustible strip-shaped sheets 18 of the non-combustible sheet body 16 are made of, for example, a non-combustible cloth such as glass cloth or silica cloth having a predetermined width. It is formed with.

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

When assembling the non-combustible sheet member 16, first, the retaining ridge 24 at the lower end of the non-combustible sheet 17 is attached to the middle cross member.
19 and a plurality of non-combustible strip-shaped sheets accommodated in the upper accommodating portion 53 between the first middle cross-frame 41 and the second middle cross-frame 42.
Each retaining ridge 38 at the upper end of 18 is accommodated in a lower accommodating portion 56 between the first middle rail 41 and the second middle rail 42 of the middle rail 19.

Then, each screw insertion hole 45 of the first middle rail 41 is formed.
By screwing each fixing screw 49 into each screw hole 50 of the second middle rail 42 and tightening them,
At the upper holding portion 51 between the first middle rail frame 41 and the second middle rail frame 42, the sewn portions 52 of the retaining ridges 24 at the lower end of the non-combustible sheet 17 are gripped from both sides. The plurality of non-combustible strip-shaped sheets 18 are held at the lower holding portion 54 between the middle rail frame 41 and the second middle rail frame 42.
The sewn portions 55 of the retaining ridges 38 at the upper end of the lip are clamped from both sides.

Therefore, the non-combustible sheet is
The lower end of 17 is sandwiched between the upper ends of a plurality of non-combustible strip-shaped sheets 18 and airtightly connected. The retaining ridge 24 at the lower end of the non-combustible sheet 17 is reliably prevented from being pulled out by the upper holding portion 51 while being housed in the upper accommodating portion 53 of the middle rail member 19, and a plurality of non-combustible In the state where each of the retaining protrusions 38 at the upper end of the belt-shaped sheet 18 is accommodated in the lower accommodating portion 56 of the crosspiece member 19, it is reliably stopped by the lower holding portion 54.

Further, the upper end of the non-combustible sheet 17 is fixed to the winding drum 8, and the non-combustible sheet 17 and the lower end of the non-combustible sheet 17 are connected to the winding drum 8 via the middle rail member 19. A plurality of non-combustible strip-shaped sheets 18 are rewound freely. Thus, the total length of the non-combustible sheet 17 and the plurality of non-combustible strip-shaped sheets 18 connected to the lower end of the non-combustible sheet 17 via the middle cross member 19 is at least the length of the shielded portion 2.
Is formed to have a length that completely closes the cover.

Next, when the non-combustible weight body 22 is attached to the lower end portions of the plurality of non-combustible strip-shaped sheets 18, the winding drum 8 is rotated in a direction to rewind the plurality of non-combustible strip-shaped sheets 18. A plurality of non-combustible belt-like sheets 18 are simultaneously rewound and lowered simultaneously from the winding drum 8, respectively.
The insertion portions 36 at both outer ends of the non-combustible belt-shaped sheet 18 disposed on both sides are lowered while being inserted into the insertion openings 4 of the guide rails 1 on both sides, and the insertion of both ends of the middle cross member 19 is performed. The portion 69 is lowered while being inserted into the insertion openings 4 of the guide rails 1 on both sides, and the insertion portions 23 on both outer ends of the non-combustible sheet 17 are inserted into the insertion openings 4 of the guide rails 1 on both sides. It is lowered in the state.

Then, the weight mounting body 20 at the lower end of the plurality of non-combustible strip-shaped sheets 18 is lowered to a predetermined position on the floor surface 15 of the shielded portion 2 and the rotation of the winding drum 8 is stopped. , A plurality of non-combustible strip-shaped sheets from the winding drum 8
The rewinding and lowering of the non-combustible sheet 18 and 18 are stopped.

A non-combustible weight in which the insertion portions 70 at both ends are respectively inserted into the insertion openings 4 of the guide rails 1 on both sides on the floor surface 15 of the shielded portion 2 located immediately below the weight attachment body 20. The landing portion 60 of the first weight 57 and the landing portion 64 of the second weight 58 of the weight body 22 are respectively installed, and the holding plate 61 and the second weight 58 of the first weight 57 are provided. The weight attachment body 20 at the lower end of the plurality of incombustible strip-shaped sheets 18 is inserted between the holding plate 65 and the holding plate 65.

Further, one of the holding plate 61 of the first weight 57 and the holding plate 65 of the second weight 58, for example, from each communication hole 66 of the holding plate 65 of the second weight 58, Each bolt 67 is inserted into each of the mounting long holes 35 of the mounting body 20 and each of the communication holes 62 of the holding plate 61 of the first weight 57, and the nuts 68 are screwed into these bolts 67 in a relaxed state. I do.

Then, the first weight 57 and the second weight 58 are vertically moved and adjusted with respect to the weight mounting body 20 at the lower end of the plurality of non-combustible strip-shaped sheets 18 via the respective bolts 67. With the landing portions 60 and 64 of the first weight 57 and the second weight 58 being in close contact with the floor surface 15, respectively, the nuts 68 screwed into the bolts 67 are tightened, respectively. The weight mounting body is formed by the holding plate 61 of the first weight 57 and the holding plate 65 of the second weight 58.
The first weight 57 and the second weight 58 are mounted on the weight mounting body 20 by the bolts 67 and the nuts 68.

Therefore, a plurality of non-combustible belt-like sheets 18
Even if there is an error in the length, the weight attachment body 20 at the lower end of the plurality of nonflammable strip-shaped sheets 18
By mounting the non-combustible weight body 22 on the weight mounting body 20 by variably adjusting the vertical direction of the weight 22, the landing sections 60 and 64 can securely and securely land on the floor surface 15 of the shielded section 2. Easy to attach to the state.

The non-combustible sheet 17, the plurality of non-combustible strip-shaped sheets 18, the weight mounting body 20 at the lower end of the plurality of non-combustible strip-shaped sheets 18, and the weight mounting body 20. The non-combustible weight body 22 constitutes a non-combustible sheet body 16 for completely shielding the shielded portion 2.

When the winding drum 8 is rotated in the direction in which the non-combustible sheet member 16 is wound in a non-fire situation, the non-combustible sheet member 16 is sequentially wound around the winding drum 8 and the lower end of the same. The non-combustible weight body 22 of the part is greatly lifted from above the floor surface 15, and the winding of the non-combustible sheet body 16 is stopped at a predetermined position. It is opened as a passage.

Next, when the shielded portion 2 is to be shielded in the event of a fire, that is, when the motor 11 is operated by a fire signal from the control means in the event of a fire, the winding shaft 9 is output by the motor 11. Is driven and rotated in the direction of rewinding the non-combustible sheet member 16, and the plurality of non-combustible strip-shaped sheets 18 of the non-combustible sheet member 16 are simultaneously rewinded and lowered from the winding drum 8 of the winding shaft 9.

The insertion portions 23 of the non-combustible sheet 17 and the insertion portions at both outer ends of the non-combustible strip-shaped sheets 18 disposed on both sides are provided.
36, insertion portions 69 at both ends of the middle cross member 19 and the non-combustible weight body 22
The non-combustible sheet body 16 is smoothly and quickly owing to the weight of the non-combustible weight body 22 and the middle cross member 19 in a state in which the insertion portions 70 at both ends of the non-combustible weight member 22 and the middle cross member 19 are inserted into the insertion ports 4 of the guide rails 1 on both sides. Descended.

Thus, the landing portions 60 and 64 of the non-combustible weight body 22
Is landed on the floor surface 15 of the shielded portion 2, the rotation of the winding drum 8 is stopped, and the uncombustible sheet body 16 from the winding drum 8 is stopped from rewinding and descending.

At this time, the non-combustible weight body 22 is attached to the weight attachment body 20 at the lower end of the plurality of non-combustible strip-shaped sheets 18 so that the landing sections 60 and 64 can land on the floor 15 in an airtight manner. Since it is adjusted and attached, the non-combustible sheet body 16 is lowered, and the non-combustible weight body 22 at the lower end thereof is landed on the floor surface 15,
The landing portions 60 and 64 of the non-combustible weight body 22 are securely and air-tightly placed on the floor surface 15. Therefore, the non-combustible sheet member 16 reliably and hermetically shields the shielded portion 2 as a whole.

Further, when the non-combustible sheet member 16 that shields the shielded portion 2 is pressed from one side by wind pressure such as hot air,
The plurality of non-combustible strip-shaped sheets 18 slightly bend in the pressing direction, but at this time, the plurality of non-combustible strip-shaped sheets 18 are overlapped with each other at both side edges in the width direction as a overlap margin 27. Since the weight attachment bodies 20 are provided at the lower ends thereof, the overlapping margins 27 of the adjacent non-combustible strip-shaped sheets 18 are flexed and closely contacted, and the adjacent non-combustible strips The two ends of the sheet 18 are not easily separated from each other, and a gap from which hot air or the like flows out is prevented from being formed therebetween.

That is, a plurality of non-combustible belt-like sheets 18
Are at least two non-combustible strip-shaped sheets which are arranged on both sides and are arranged side by side with the overlap margin 27 at the side end in the width direction separated from each other
18a, 18b or two non-combustible strips 18b, 18c
And the two non-combustible strip-shaped sheets 18a, 18b or 2
An intermediate non-combustible belt-like sheet 18d in which the overlap margins 27 at both side ends are arranged to overlap each other along both surfaces of the spaced-apart overlap margin 27 of the two non-combustible belt-like sheets 18b and 18c.
, 18e.

When a plurality of non-combustible sheet members 18 that shield the shielded portion 2 are pressed by wind pressure such as hot air,
The plurality of non-combustible belt-shaped sheets 18 slightly bend in the pressing direction. At this time, the non-combustible belt-shaped sheets 18a, 18b on both sides or the non-combustible belt-shaped sheets 18b, 18b,
The two non-combustible strips 18d and 18e are arranged such that the overlap margins 27 at both ends of the intermediate non-combustible strip-shaped sheets 18d and 18e are overlapped with each other along both sides of the spaced overlap margin 27 of 18c. Even if it is pressed and blown by wind pressure such as hot air from either direction of the surface or the other surface, the overlapping margins 27 of the adjacent non-combustible strip-shaped sheets 18 are flexed and closely contacted, and the adjacent non-combustible strip-shaped sheets 18 The two end portions are not easily separated from each other, and a gap from which hot air or the like flows out is prevented from being formed therebetween.

Therefore, the shielded portion 2 is completely covered with the non-combustible sheet member 16 without fail.
Even when the air is blown by the wind pressure, the non-combustible sheet member 16 securely shields the shielded portion 2 from the air, and the shielded state is maintained. The non-combustible sheet 16 prevents the diffusion and spread of smoke from one side in the front-rear direction of the shielded portion 2 to the other side.

The plurality of non-combustible strip-shaped sheets 18 have their upper ends fixed and restrained by a middle cross member 19, and their lower ends connected to a non-combustible weight body 22 via a weight mounting body 20. Fixed and constrained, even if a plurality of non-combustible strips 18 are heated during a fire, the plurality of non-combustible strips 18 shrink irregularly and are unlikely to be deformed. The two ends of the sheet 18 are not easily separated from each other, and a gap from which hot air or the like flows out is prevented from being formed therebetween.

The weight attachment body 20 is a non-combustible belt-like sheet 18.
The metal plate 34 is inserted into the flat cylindrical portion 32 formed at the lower end of the flat cylindrical portion 32, so that the metal plate 34 can sufficiently reinforce the flat cylindrical portion 32 as a core material, and this weight mounting Even when the non-combustible weight body 22 is mounted on the body 20 with a plurality of bolts 67 and nuts 68, the non-combustible weight body 22 is inserted into the mounting long hole 35 of the flat tubular portion 32 through which the plurality of bolts 67 are inserted. And the formation of wrinkles and the like due to the weight of the above.

Further, the non-combustible sheet body 16 is a non-combustible sheet.
By having a plurality of non-combustible belt-shaped sheets 18 arranged side by side in a state of being overlapped with each other at the lower end of the 17 via the middle cross member 19 at both side ends in the width direction as a stacking margin 27, a fire or the like can be prevented. At the time of emergency escape, it is possible to easily escape from the adjacent non-combustible strip-shaped sheet 18 by pushing and opening between the overlap margins 27 at both end portions thereof.

Next, in the above embodiment, the plurality of mounting slots 35 are formed in the weight mounting body 20 at the lower end of the plurality of non-combustible strip-shaped sheets 18, respectively, and communicate with the mounting slots 35. The description has been given of the case where the plurality of communication holes 62 and 66 are formed in the holding plate 61 of the first weight 57 and the holding plate 65 of the second weight 58, respectively. 35 are formed on the holding plate 61 of the first weight 57 and the holding plate 65 of the second weight 58, respectively. A plurality of communication holes 62 and 66 communicating with the plurality of mounting long holes 35 are provided with a plurality of non-combustible It may be formed on the weight attachment body 20 at the lower end of the strip-shaped sheet 18.

With this configuration, the first weight 57 and the second weight 58 are attached to the weight mounting body 20 via the plurality of bolts 67 and nuts 68 in the same manner as in the above embodiment. The position of the non-combustible weight body 22 is easily adjusted in the vertical direction, and the non-combustible weight body 22 is composed of a first weight 57 and a second weight.
The landing portions 60 and 64 of 58 are fixed to the weight mounting body 20 with a plurality of bolts 67 and nuts 68 at a set position where the landing portions 60 and 64 are in close contact with the floor surface 15.

Next, in the above-described embodiment, the landing portion 60 of the first weight 57 and the landing portion 64 of the second weight 58 of the non-combustible weight 22 are directly adhered to the floor surface 15. Lever floor 60, 64 and floor
Although the case where the space between the non-combustible weight 15 and the non-combustible weight 15 is airtightly closed has been described, a non-combustible landing sheet piece having flexibility to land on the floor surface 15 is provided at the lower end of the non-combustible weight body 22. You may make it protrude. This non-combustible landing sheet piece is the first weight
It is preferable to protrude downward from between the landing portion 60 of the 57 and the landing portion 64 of the second weight 58. In addition, the non-combustible landing sheet pieces may be a single sheet that is bent along the floor surface 15 at the time of landing and landed on the floor, and may face each other along the floor surface 15 at the time of landing. The two sheets may be separated from each other and landed, or a non-combustible landing sheet piece may be formed in a bag shape.

With this configuration, the space between the landing sections 60 and 64 and the floor surface 15 is airtightly closed by the non-combustible landing sheet pieces. When the non-combustible landing sheet pieces are separated from each other in the opposite directions and land on the non-combustible sheet, the non-combustible sheet body 16 that shields the shielded portion may be on one side or the other side. Even if it is pushed from the direction, the space between the landing sections 60 and 64 and the floor surface 15 is reliably airtightly closed by the non-combustible landing sheet piece.

Next, in the above-described embodiment, the motor 11 is stopped by a stop signal from the control means to which a detection signal of the detection means for detecting that the non-combustible weight body 22 has landed on the floor surface 15 is inputted. The case has been described, but not limited to this.
The motor 11 may be automatically stopped at a number of rotations set in accordance with a landing position at which the nonflammable weight body 22 is landed on the floor surface 15.

Then, when the noncombustible weight body 22 is landed on the floor surface 15, the motor 11 rotates at a predetermined rotation speed and stops, and the lower surface of the noncombustible weight body 22 is stopped. The entire surface is air-tightly placed on the floor surface 15, and the non-combustible weight body 22 and the non-combustible sheet body 16 securely shield the shielded portion 2.

In the above embodiment, the weight mounting member 20
The case where the metal plate 34 has protrusions 33 protruding outward from both ends of the flat cylindrical portion 32 at both ends has been described, but the present invention is not limited to this, and both ends of the metal plate 34 are flat cylinders. Shape
32 may be made to coincide with both edges.

[0090]

According to the first aspect of the present invention, the non-combustible sheet member for shielding the portion to be shielded comprises a plurality of non-combustible sheets arranged side by side in a state of being overlapped with each other at both ends in the width direction. and sex belt-like sheet, the plurality of sheets of incombustible sheet strip weight attachment member Ru provided at the lower end of the incombustible weight body having a landing section for implantation on the floor before Symbol the hidden part, the Weight mounting means for mounting the non-combustible weight body to the weight mounting body in a vertically adjustable manner, so that a plurality of non-combustible strips are formed by the weight mounting means according to the situation of the shielded portion. come vertically moved regulate incombustible weight body to the weight attachment member of the lower end portion of the sheet
The non-combustible weight body can be easily mounted in a state where it can be securely and airtightly landed on the floor surface of the shielded part. Ma
In addition, the weight attachment body is a non-combustible belt-shaped sheet arranged on both sides.
A flat cylindrical portion formed at the lower end of the flat cylindrical portion;
And the metal plate inserted into the
Can sufficiently reinforce the flat cylindrical part as a core material.
Even if a non-combustible weight is attached to the attachment,
Due to the weight of the non-combustible weight body, wrinkles etc. are formed on the mounting part
Can be prevented.

Further, even when there is an error in the length of the plurality of non-combustible strips for shielding the shielded portion, the non-combustible strips attached to the lower ends of the plurality of non-combustible strips by the weight attaching means. the non-flammable weight body sex weight body up and down motion adjustment to
Of the non-combustible weight body and the floor surface due to the error in the length of the plurality of non-combustible strip-shaped sheets The formation of a gap that impairs airtightness can be reliably prevented.

Further, the plurality of non-combustible strip-shaped sheets are juxtaposed in a state where they are overlapped with each other at both ends in the width direction and overlapped with each other. The non-combustible belt-shaped sheets are attached to the lower end of the plurality of non-combustible belt-shaped sheets, and are heated by the fire heat to be thermally shrunk and deformed. A gap for hot air or the like to flow out between the side edges of adjacent non-combustible belt-shaped sheets is not easily formed even when being pushed, and the airtightness between the side edges of adjacent non-combustible belt-shaped sheets is maintained. Can be.

Therefore, when attaching the non-combustible weight to the lower end portions of the plurality of non-combustible strip-shaped sheets, the non-combustible weight can be mounted at an appropriate position where the non-combustible weight can always land on the floor in an airtight manner. A highly airtight fireproof screen device can be provided.

[0094] Further, when the incombustible sheet material shielded from the hidden portion is pressed by the wind pressure of the hot air or the like, the plurality of incombustible strip sheet but each slightly bent toward the pressing direction, this time, both sides The non-combustible sheet-like sheet is disposed on both sides of the intermediate non-combustible sheet-like sheet along both sides of the separated overlapping part of the non-combustible sheet-like sheet so that the non-combustible sheet body is on one side or If pressed from any direction on the other side by wind pressure such as hot air,
The overlapping margins of adjacent non-combustible belt-shaped sheets are flexed and closely contacted, and the two end portions of the adjacent non-combustible belt-shaped sheets do not easily separate from each other, and a gap is formed between them to allow hot air or the like to flow out. Can be prevented.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the weight attachment body at the lower end of the plurality of non-combustible strip-shaped sheets is moved to a predetermined position on the floor surface of the shielded portion. while stopping is lowered, it established the non retardant weight body onto the floor surface of the shielding portion located immediately below the weight attachment member, from the mounting slots or the communicating hole of the incombustible weight body A bolt is inserted into each of the communication holes or the respective mounting long holes of the weight mounting body, and the non-combustible weight body is vertically moved with respect to the weight mounting body via the bolts. By screwing nuts to the bolts and tightening the bolts in a state where the landing section is in close contact with the floor surface, the non-combustible weight body can be easily and reliably attached to the weight mounting body.

Therefore, even when the plurality of non-combustible belt-shaped sheets have an error in length, the non-combustible weight body is vertically attached to the weight mounting body at the lower end of the plurality of non-combustible band-shaped sheets.
By performing the dynamic adjustment, the non-combustible weight body can be easily attached to the weight attachment body in such a state that the landing section can be securely and airtightly placed on the floor surface of the shielded section.

According to the third aspect of the invention, in addition to the effect of the first aspect, the weight attachment body at the lower end of the plurality of non-combustible strip-shaped sheets is moved to a predetermined position on the floor surface of the shielded portion. While being lowered and stopped, the holding plates of the first weight and the second weight installed on the floor surface of the shielded portion located immediately below the weight mounting body are applied to both surfaces of the weight mounting body, respectively. contact, the first of each communication hole or each of the mounting slots or the communication holes and the second weight of the weight attachment member from the communication holes or the mounting slots of the weight
The first weight and the second weight are moved up and down with respect to the weight mounting body via each bolt inserted into the mounting long hole , and the first weight is adjusted.
The first weight and the second weight are tightened by screwing nuts onto the bolts in a state where the landing portions of the weight and the second weight are in close contact with the floor, respectively. Thus, the weight attachment body can be securely sandwiched and fixed from both sides by the holding plate, so that the non-combustible weight body can be securely attached to the weight attachment body.

When it is necessary to adjust the mounting position of the noncombustible weight body, for example, when an error occurs in the length of a plurality of noncombustible strip-shaped sheets, each nut is loosened with each bolt. By adjusting the first weight and the second weight vertically with respect to the weight mounting body via bolts, the incombustibility is improved.
This non-combustible weight can be easily adjusted by adjusting the mounting position of the weight body and tightening the nuts while the landing portions of the first weight and the second weight are in close contact with the floor surface, respectively. it is possible to fix the body to a Jo Tokoro position.

Further, the non-combustible weight body is connected to the first weight and the second weight.
The weight mounting body can be securely and airtightly clamped from both sides by the holding plate of the first weight and the holding plate of the second weight. The installation work and adjustment operation of the non-combustible weight body to are easy,
It is easy to manufacture.

According to the fourth aspect of the present invention, in addition to the effects of the first aspect of the present invention, when the shielded portion is shielded in the event of a fire,
When the take-up drum is rotated in the direction in which the non-combustible sheet is rewound, the non-combustible sheet is rewound and lowered from the take-up drum. The lower part is lowered with the both ends inserted into the guide rail insertion openings, and the inner cross member is lowered with the both ends inserted into the guide rail insertion openings. both outer ends of the incombustible sheet strip located is lowered in a state of being inserted into the insertion slot on both sides of the guide rail.

Further, the landing portion of the non-combustible weight body is landed on the floor surface of the shielded portion, and the retraction of the non-combustible sheet from the winding drum is stopped. The non-combustible weight body is adjusted and attached to the weight attachment body at the lower end of the plurality of non-combustible strip-shaped sheets so that the landing section can be air-tightly placed on the floor surface. When the non-combustible weight at the lower end of the non-combustible weight is landed on the floor, the landing portion of the non-combustible weight is securely and air-tightly landed on the floor.

Further, the noncombustible sheet body has a middle cross member having both ends inserted into the insertion openings of the guide rails on both sides and a noncombustible weight body having both ends inserted into the insertion openings of the guide rails on both sides. The one-piece incombustible sheet and the plurality of non-combustible belt-shaped sheets can be reliably reinforced by the middle cross member and the non-combustible weight body. Does not bend significantly even when heated by hot air or the like, so that the airtightness can be reliably prevented from being impaired.

Therefore, it is possible to reliably and hermetically shield the shielded portion as a whole with the non-combustible sheet member.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a non-combustible sheet member of a fire-resistant screen device according to an embodiment of the present invention.

FIG. 2 is a front view of the refractory screen device.

FIG. 3 is a side view of the same.

FIG. 4 is a perspective view showing a state where the non-combustible strip-shaped sheets are juxtaposed and separated from each other;

FIG. 5 is a perspective view showing an intermediate noncombustible belt-shaped sheet disposed between the non-combustible band-shaped sheets.

FIG. 6 is a cross-sectional view showing an attached state of the incombustible weight body.

FIG. 7 is a sectional view of the middle rail member.

FIG. 8 is a perspective view of a part of the non-combustible sheet body showing the assembled state of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Guide rail 2 Shielded part 4 Insertion opening 8 Winding drum 15 Floor 16 Non-combustible sheet 17 Non-combustible sheet 18 Non-combustible strip 18a, 18b, 18c Non-combustible strip 18d, 18e on both sides Seat 19 Middle cross member 20 Weight attachment body 21 Weight attachment means 22 Non-combustible weight body 27 Overlap margin 32 Flat cylindrical portion 34 Metal plate 35 Mounting long hole 57 First weight 58 Second weight 60, 64 Landing section 61, 65 Holding plate 62, 66 Communication hole 67 Bolt 68 Nut

──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-10-115164 (JP, A) JP-A 54-3850 (JP, U) JP-A 1-161653 (JP, U) JP-A 55- 125348 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) A62C 2/06 A62C 2/10

Claims (4)

(57) [Claims] 1. A guide rail fixed to both sides of a shielded portion and opposed to each other and formed with an insertion opening in a vertical direction, and a winding rotatably provided above and between the guide rails on both sides. The take-up drum and the take-up drum are wound so as to be able to be rewound freely. At the time of rewind, the lower end is shielded by inserting both ends in the width direction into the insertion openings of the guide rails on the both sides to cover the shielded portion. A plurality of non-combustible strip-shaped sheets, which are arranged side by side in a state of being overlapped with each other with both side edges in the width direction as an overlap margin, and the plurality of non-combustible sheet-shaped sheets. and incombustible sheet strip weight attachment member Ru provided at the lower end of the incombustible weight body having a landing section for implantation on the floor before Symbol the hidden portion, the incombustible heavy the heavy weight mounting body Weight attachment means for attaching the weight body vertically adjustable , Have a, the plurality of incombustible strip sheet width direction are arranged on both sides
The side margins of
Both of the two non-combustible strips and the two non-combustible strips
Overlap on both sides along both sides of the sheet allowance
Intermediate parts arranged in a state where the teens overlap each other
And the weight attachment body is provided with a non-combustible strip-shaped sheet disposed on both sides.
A flat cylindrical portion formed at the lower end of the
A fire-resistant screen device comprising a metal plate inserted in a shape portion . 2. The weight mounting means is incombustible with the weight mounting body.
In the width direction of the non-combustible belt-shaped sheet,
Multiple vertical mounting lengths formed at predetermined intervals
Holes and the plurality of mounting slots formed on the other side.
And a plurality of communication holes that communicate with each other, and a plurality of communication holes that communicate with each other.
A plurality of communication holes and a plurality of holes respectively inserted into the plurality of mounting long holes;
Bolts and nuts screwed to each of the bolts
It has a DOO, a refractory screen device according to claim 1, wherein a. 3. The non-combustible weight body is divided into first divided bodies.
The first weight and the second weight.
And the second weight hold the landing section and the weight mounting body from both sides
Each holding plate has a plurality of mounting slots.
Others have a plurality of communication holes, claim 1 Symbol mounting refractory screen device, characterized in that. 4. The non-combustible sheet body is rewound on a winding drum.
It is wound freely and both ends are guide rails when rewinding
While being inserted into the insertion slot of the
One-compartment non-combustible sheet to cover and this non-combustible sheet
Rewinding of this non-combustible sheet fixed along the lower end of the
With both ends inserted into the guide rail insertion slot
A middle cross member to be lowered, and a plurality of
Respectively fixing the upper end portion of the incombustible sheet strip, refractory screen device according to claim 1 Symbol mounting, characterized in that.