JP2001276243A - Fireproof and smokeproof shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof and smokeproof shutter that is thin, can secure sufficiently an indoor height and has a good appearance. SOLUTION: A fire resistant sheet 3 is hung down from a ceiling, or the like 2, and arranged in a manner that the tip thereof is permitted to reach a floor, and when a fire, or the like, requires, the fire resistant sheet 3 is hung down so as to make the tip reach the floor, shielding the interior space of a built structure, or the like, and a flat shutter case 4 that can store the majority of the fire resistant sheet 3 as it is, is provided in the ceiling, or the like 2, an opening and closing device 11 for the fire resistant sheet 3 is provided in the shutter case 4, a wire 10 is attached to a space between the opening and closing device 11 and the fire resistant sheet 3, and by delivering out the wire 10 with the opening and closing device 11, and hanging down the fire resistant sheet 3 from the shutter case 4, drawing in the wire 10 with the opening and closing device 11, and storing the fire resistant sheet 3 in the shutter case 4, the fire resistant sheet 3 does not overlap mutually and the shutter case 4 remains within the thickness of one sheet and can retain flatness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a weight is attached to a fireproof sheet installed under a ceiling or a beam, and the fireproof sheet is dropped by the weight when the fire or the like is required to land on the fireproof sheet, so that an internal space of a building structure or the like is removed. The present invention relates to a fireproof and smokeproof shutter that shields and prevents the spread of fire and the spread of smoke.

[0002]

2. Description of the Related Art As means for preventing smoke or flame from being spread at the time of a fire inside a building structure or the like, a fireproof and smokeproof shutter using a fireproof sheet such as a glass cloth is known. The basic structure of this fire and smoke shutter 50 is shown in FIG.
As shown in FIG. 5, a shutter case 52 as a storage place for the fireproof sheet 51 is installed under the ceiling or under the beam, and a roll 53 for winding up and winding the fireproof sheet 51 is rotatably provided in the shutter case 52. A seat plate 54 as a weight is attached to the tip of the 51, and the fireproof sheet 51 is hung down so that the tip can be placed on the floor. When a fire or the like is necessary, for example, when a fire or the like is detected, for example, by detecting the smoke or a room temperature higher than a predetermined temperature or manually, the stopper is released and the fireproof sheet 51 is moved from the shutter case 52 by the weight of the seat plate 54. It is made to hang down and its tip is to be landed, thereby shielding the internal space of a building structure or the like. The seat plate 54 has a function of hanging down the fire-resistant sheet 51 and landing the tip of the fire-resistant sheet 51, and prevents the fire-resistant sheet 51 from rolling up due to wind pressure generated at the time of fire.

[0003]

The fireproof and smokeproof shutter 50 described above accommodates the fireproof sheet 51 wound on a roll 53 in a shutter case 52, so that the diameter of the fireproof sheet 51 after winding is increased, and the shutter is stored. Needs a thickness dimension L that allows However, it is often difficult to secure an installation space for the fire and smoke prevention shutter 50 requiring such a thickness L under the ceiling or under the beam due to piping, ducts, wiring, and the like. In addition, when the fire and smoke prevention shutter 50 is installed later on the ceiling or under the beam, it will protrude from the ceiling or under the beam by the thickness dimension L, so that not only the interior height becomes low but also the appearance becomes poor. .

Recently, there has been an increasing trend to install a fire and smoke shutter 50 in front of an elevator door on each floor of an existing building. In other words, this rise in momentum is based on legal regulations, but in the event of a fire in a building with elevator equipment, even if fire and smoke prevention shutters 50 are installed on the same floor to take fire and smoke protection measures, And because of the function, it is impossible to prevent smoke, so if there is an elevator on the fire source side, the flame can be prevented by the elevator door, but the elevator shaft acts as a chimney, and smoke easily goes to the upper floor Because. In such a case, there is no other alternative but to retrofit the fire and smoke prevention shutter 50. Therefore, the conventional fire and smoke prevention shutter 50 cannot be installed, or even if it can be installed barely, the appearance is extremely deteriorated. Had occurred.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire-and-smoke-proof shutter which has a small thickness, can secure a sufficient indoor height, and has a good appearance.

[0006]

Under these circumstances, the present inventors have conducted intensive studies to achieve the above object, and as a result, provided a flat storage space for storing a fireproof sheet under a ceiling or under a beam, and provided the storage space with a flat storage space. When the refractory sheet is stored in one direction, if the direction of the storage is changed in one direction from 0 degree to 360 degree, the thickness of the storage location does not exceed the thickness of three refractory sheets. Have been found to be small and the flatness can be maintained, and the present invention has been completed.

That is, according to the first aspect of the present invention, a fireproof sheet is hung down from below on a ceiling or a beam, and its tip is disposed so that it can be landed. In a fireproof and smokeproof shutter configured to cover the internal space of a building structure or the like by providing a flat storage space that can store a fireproof sheet under the ceiling or under a beam, when the fireproof sheet is stored in the storage space. The fireproof and smokeproof shutter is provided, wherein the fireproof sheet is stored in the storage location within a range of 0 to 360 degrees in one direction. By adopting such a configuration, since three or more fireproof sheets do not overlap in a flat storage space, the storage space only needs to have a thickness of three sheets, and the thickness of the storage space can be reduced. Can maintain sex.

According to a second aspect of the present invention, a fire-resistant sheet is hung down from below on a ceiling or a beam, and its tip is disposed so that it can be landed. In a fireproof and smokeproof shutter that covers the internal space of a building structure or the like by providing a floor, a storage space that can store most of the fireproof sheet as it is under the ceiling or the beam is provided, and a fireproof sheet opening and closing device is provided in the storage space. A wire is attached between the opening / closing device and the base end of the fireproof sheet, the wire is sent out by the opening / closing device, the fireproof sheet is drooped from the storage location, and the wire is pulled in by the opening / closing device. Is provided in the storage place, and a fireproof and smokeproof shutter is provided. By adopting such a configuration, if the wire is pulled in by the opening and closing device, the fireproof sheet can be stored in the storage location as it is, and if the wire is sent out by the opening and closing device, the fireproof sheet can be drooped from the storage location as it is, and the fireproof sheet overlaps. Since there is no space, the storage location is within the thickness range for one sheet, the thickness of the storage location can be reduced, and its flatness can be maintained.

Further, the invention according to claim 3 is characterized in that the switching device is
Wire between the winding shaft and the base end of the fireproof sheet
Attach the base of the fireproof sheet and the wire
Place H ₁And a fixing position H between the winding shaft and the wire._Two
Is symmetrical with respect to the center line in the width direction of the refractory sheet.
And H of the same wire₁And the H_TwoIs flat
It is characterized by a position shifted from the opposite position in plan view
The present invention provides a fireproof and smokeproof shutter. Heel
By adopting a configuration, the wire can be
When winding, H₁And H_TwoIs shifted from the position where
To avoid overlapping wires due to winding
And the thickness of the storage space can be made as small as possible. Ma
In addition, smooth winding and lowering are also possible.

According to a fourth aspect of the present invention, a fire-resistant sheet is hung down from below on a ceiling or a beam, and the tip of the fire-resistant sheet is provided so that it can be placed on the floor. In a fireproof and smokeproof shutter which is made to be on the floor and shields an internal space of a building structure or the like, a storage place where a fireproof sheet can be stored under the ceiling or under a beam is provided, and a fireproof sheet is provided at a hanging side end of the storage place. A base end portion is fixed, a roll is provided at the storage location to freely slide the storage side end portion from a hanging side end portion thereof, and a fireproof sheet is hung on the roll locked at the storage side end portion. The fireproof sheet is suspended from the storage location by sliding the fireproof sheet from the storage side end to the hanging side end, and the roll is slid to the storage side end and locked back to store the fireproof sheet in the storage location. Characterized by Fire smoke shutter is provided.
By adopting such a configuration, if the roll is slid from the hanging side end to the storage side end and locked, the fireproof sheet hung on the roll can be folded into two and stored in the storage location, and the roll can be stored in the storage side end. If you slide the fire-resistant sheet from the storage location, you can slide the fire-resistant sheet from the storage location, and the storage location will be within the thickness of two sheets,
The thickness of the storage space can be reduced, and the flatness can be maintained.

According to a fifth aspect of the present invention, the fireproof sheet is installed so as to cover the periphery of the elevator door when the fireproof sheet is extended from the storage place, hangs down, and the tip of the fireproof sheet lands. A featured fire and smoke shutter is provided. With this configuration, when the fireproof sheet is hung down from the storage location and the tip of the fireproof sheet lands, the periphery of the elevator door is covered with the fireproof sheet.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to FIGS. FIG. 1 is a longitudinal sectional view schematically showing a fire and smoke prevention shutter according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a fire and smoke prevention shutter.
The fire-resistant sheet 3 will be hung down from now on, and the tip end on the fire and smoke-proof side will be provided so that it can be placed on the floor. It shields the internal space of a building structure. In addition, a shutter case 4 which is a flat storage space in which the fireproof sheet 3 can be stored in the ceiling 2 or the like is provided horizontally, and when the fireproof sheet 3 is stored in the shutter case 4, the storage direction of the fireproof sheet 3 needs to be changed. The refractory sheet 3 is housed in the shutter case 4 within the range of 0 to 360 degrees in the direction. And this fire and smoke shutter 1
A wire 10 is attached to the base end B on the storage side of the refractory sheet 3, and the wire 10 is wound by an opening / closing device 11 which is a winding machine, so that the refractory sheet 3 is stored in the shutter case 4. When the wire 10 is unwound, the refractory sheet 3 hangs down from the shutter case 4.

The conversion of the storage direction of the refractory sheet 3 according to the present invention is one direction, which means that when the storage direction of the refractory sheet 3 is not changed in the storage state of the refractory sheet 3, the conversion in one direction is 0.
When the conversion of the storage direction of the refractory sheet 3 is performed, it is determined by the first conversion direction with the opening and closing device 11 as a starting point. That is, if the first conversion direction is clockwise, clockwise is one direction, and if the first conversion direction is counterclockwise, counterclockwise is one direction. In the case of FIG. 1, the direction of storage of the refractory sheet 3 is changed only once in the counterclockwise direction by the guide roll 12 from the opening and closing device 11 and is 90 degrees.

That is, it is only necessary that the refractory sheet 3 is stored in the shutter case 4 within a range of 0 ° to 360 ° in total in one direction. Is as follows.

The fireproof and smokeproof shutter 1a shown in FIG. 2 has a flat shutter case 4 provided vertically on a ceiling 2 or the like, and an opening / closing device 11 provided on the upper part of the shutter case 4 winds up a wire 10. The fireproof sheet 3 is stored in the shutter case 4, and the conversion of the storage direction of the fireproof sheet 3 in this case is the simplest of 0 degrees.

In the fireproof and smokeproof shutter 1b shown in FIG. 3, a flat shutter case 4 is provided horizontally on a ceiling 2 or the like. In this case, the storage direction of the fireproof sheet 3 is changed by a guide roll 13 starting from an opening / closing device 11. Since it is converted clockwise, the clockwise direction becomes one direction, and the guide roll 13
Is converted in one direction by 180 degrees, and is converted by 90 degrees counterclockwise by the guide roll 12 (reverse direction). When only one direction is viewed, the conversion is 180 degrees.

In the fireproof and smokeproof shutter 1c of FIG. 4, a flat shutter case 4 is provided horizontally on a ceiling or the like 2. In this case, the direction of storage of the fireproof sheet 3 is changed by a guide roll 13 starting from an opening / closing device 11. Is converted in the counterclockwise direction, so that the counterclockwise direction becomes one direction, the guide roll 13 converts the direction by 180 degrees, and the guide roll 14 further rotates the direction by 90 degrees in the counterclockwise direction (one direction). Conversion. Therefore, when viewing only one direction, the conversion is 180 degrees + 90 degrees, for a total of 270 degrees.

The fireproof and smokeproof shutter 1d shown in FIG. 5 has a flat shutter case 4 provided horizontally on the ceiling 2 or the like. In this case, the storage direction of the fireproof sheet 3 is changed by a guide roll 13 starting from the opening and closing device 11. , Since it is converted in the counterclockwise direction, the counterclockwise direction is one direction, and the guide roll 13 is a conversion of 180 degrees in one direction, and the guide roll 15 is further converted in the counterclockwise direction (one direction) by 180 degrees. The conversion is 90 degrees clockwise (reverse direction) by the guide roll 12. Therefore, when viewing only one direction, the conversion is 180 degrees + 180 degrees, for a total of 360 degrees.

Next, the case of FIG. 1 will be described in further detail with reference to FIGS. The fireproof and smokeproof shutter 1 is installed in the hall 6 in front of the elevator door 5, and the shutter case 4 is not particularly limited as long as it can store most of the fireproof sheet 3 as it is. The wire 10 is sent out by the opening / closing device 11 in the shutter case 4, the refractory sheet 3 is hung down from the shutter case 4, and the wire 10 is pulled in by the opening / closing device 11 to house the refractory sheet 3 in the shutter case 4. is there.

The refractory sheet 3 is made of a nonflammable and refractory material such as a woven glass fiber cloth or silica cloth. The tip of the refractory sheet 3 is formed in a bag 20, which enhances the adhesion to the floor when landing, and further serves as a weight for the seat plate 21.
Is attached immediately next to the bag 20. On the other hand, the base end of the refractory sheet 3 is also formed in the bag 22, and a flat bar 23 slightly longer than the width of the refractory sheet 3 is contained in the bag 22. The flat bar 23 is connected to the pulley 25 of the shaft 24 of the opening / closing device 11 by the wire 10. In addition, the fireproof sheet 3 is provided with an evacuation door (not shown) for a person who has escaped late.

The opening / closing device 11 is provided with three pulleys 25 on a shaft 24 pivotally supported on the side wall of the shutter case 4 and three wires 10 attached to the three pulleys 25. The rotation is made forward and reverse. Since the three pulleys 25 of the shaft 24 rotate forward and reverse by the forward and reverse rotation of the driving device 26, the three wires 10 are wound and rewound, so that the refractory sheet 3 is provided with the guide provided facing the lintel 27. The direction is changed by 90 degrees by the bar 12a, and the light enters and exits the shutter case 4. That is, the flat bar 23 of the refractory sheet 3
Slides on the rail 28 attached along the side wall of the shutter case 4, and is slid by the storage side and hanging side stoppers 29 and 30 provided at both ends of the rail 28. When the flat bar 23 hits the storage side stopper 29, the storage of the refractory sheet 3 is completed, and when the flat bar 23 hits the hanging side stopper 30, the drooping of the refractory sheet 3 is completed.

Further, both ends in the width direction of the refractory sheet 3 are
As shown in FIG. 8, a bag 31 is formed, and a nonflammable and flexible rope 32 is inserted into the bag 31 and inserted into the guide rail 33. This guide rail 33
As shown in FIG. 6, is provided to the floor 34 along the fireproof sheet 3 hanging from the shutter case 4.

FIG. 9 shows another embodiment of the shutter case 4a. The shutter case 4a is provided with a guide bar 12a at a position where the hanging stopper 30 shown in FIG. The bag 20 and the seat plate 21 can be placed. Therefore, the thickness L ₁ of the shutter case 4 a is
It can be made smaller than the thickness L ₂ of the shutter case 4 (L ₁ <L _2).

FIGS. 10 and 11 show a fire and smoke shutter 1e for retrofitting according to the shape of the ceiling or the like in front of the existing elevator door, and its basic structure is the fire and smoke shutter 1 shown in FIGS. Is the same as The difference is that a shutter case 4b adapted to the shape of the ceiling 2a and the like in front of the elevator door 5 and guide rolls 36a and 36b for changing the direction of the refractory sheet 3 are provided, and a plurality of wires 10 are integrated into one. The point is that the single wire 10a is directly wound up and rewinded by the driving device 26. The direction change is performed with the guide roll 36a starting from the opening and closing device 11.
, The counterclockwise direction becomes one direction, and the guide roll 36a is a conversion of approximately 90 degrees, and the guide roll 36b is a conversion of approximately 90 degrees in a clockwise direction (reverse direction). And the guide roll 12 makes a 90 degree counterclockwise conversion. Therefore, when viewing only one direction, the conversion is 90 degrees + 90 degrees, for a total of 180 degrees. Other structures are denoted by reference numerals in the drawings, and description thereof will be omitted.

FIG. 12 shows a modification of the mounting method using a pulley 25 of a wire between the winding shaft 24 of the opening / closing device 11 and the base end of the refractory sheet 3 shown in FIG. That is, the fixed position of H ₂ fixed positions H ₁ and the winding shaft 24 and the wire 10 of the proximal end and the wire 10 of the refractory sheet 3 is in the symmetrical position with respect to the center line A in the width direction of the refractory sheet 3, and Opposite H ₁ and H ₂ connected by the same wire are shifted from each other by h width. According to this mounting method,
When winding the wire in the winding shaft, H ₁ and H ₂ are overlapped wires for a position displaced from the position opposed also can be without a thickness of the storage space can be minimized. In addition, smooth winding and lowering are also possible.

Next, a description will be given of a method of using the fireproof and smokeproof shutters 1, 1a to 1e having the above configuration. First, fire and smoke prevention shutters 1 are provided at positions for shielding the internal space of a building structure or the like, for example, ceilings 2 and 2a in front of existing elevator doors.
1a to 1e are installed, and a guide rail 33 for guiding the refractory sheet 3 is attached to the side wall in front of the elevator door 5 in close contact. In the event of a fire or inspection,
The lock mechanism (not shown) of the opening / closing device 11 is automatically or manually released, and the weight of the seat plate 21 or the driving mechanism 2
By the operation of 6, the refractory sheet 3 is guided from the shutter cases 4, 4a and 4b by the guide rails 33 and hangs down, and the bag 20 at the tip end thereof is placed on the floor 34 to shield the elevator and each floor. . Therefore, the flame and smoke caused by a fire generated on a certain floor are shielded by the fireproof sheet 3 on the floor, and the elevator shaft serves as a chimney and does not spread to other floors. In addition, a person in the elevator can escape to another floor from the evacuation door provided on the fireproof sheet 3. When it is not necessary to end the fire or the like or to end the inspection, the drive unit 26 is operated to store the refractory sheet 3 in the shutter cases 4, 4a and 4b.

FIGS. 13 and 14 show a fire and smoke prevention shutter 1f of another embodiment. The difference from the fire and smoke prevention shutter 1 of FIGS. 6 to 8 is that the hanging end 40 of the shutter case 4c is different from that of FIG. The base end B of the refractory sheet 3 is fixed to the bar 41 provided in the shutter case 4c, and the side wall 42 of the shutter case 4c is provided with an elongated hole 44 extending from the hanging end 40 to the storage end 43. A roll 45 is provided in the elongated hole 44, and an L-shaped bottom plate 46 and an I-shaped bottom plate 47 of the shutter case 4c are rotatably provided at pivot points 46a and 47a, so that the shutter case 4c can be opened and closed. The point is that the refractory sheet 3 is hung on the roll 45 locked on the storage side end 40.

When a fire or the like is required or an inspection is required, the shutter case 4c is opened by the L-shaped bottom plate 46 and the I-shaped bottom plate 47, and the roll 45 is disengaged to remove the slot 4.
4, the refractory sheet 3 is slid from the storage side end 43 to the hanging side end 40 and hangs down from the shutter case 4 c to land thereon, thereby shielding the flame and smoke caused by the fire. When it is not necessary to end the fire or the inspection, etc., the roll 45 is slid from the hanging end 40 of the long hole 44 to the storage end 43 and locked, and the fireproof sheet 3 is stored in the shutter case 4c. Then, the shutter case 4c is closed by the L-shaped bottom plate 46 and the I-shaped bottom plate 47. Therefore, the refractory sheet 3
Can be folded in two by the roll 45 and stored in the shutter case 4c, so that the height of the shutter case 4c can be reduced to the range of the thickness of the two refractory sheets 3,
The fireproof and smokeproof shutter 1f can maintain its flatness.

The shutter case 4c is not opened and closed, and the guide roll 12b shown by a two-dot chain line in FIG.
And an entrance 48, and if necessary, the roll 45 is slid between the storage side end 43 of the elongated hole 44 and the entrance side end 40, and the refractory sheet 3 is hung down from the shutter case 4c to land on the floor. Even if the fireproof sheet 3 that has landed is stored in the shutter case 4c, the same function as that of the fireproof and smokeproof shutter 1f can be achieved.

Although the embodiment of the present invention has been described above, the specific configuration is not limited to this, and changes and additions without departing from the spirit of the present invention are within the scope of the present invention.

[0031]

According to the first aspect of the present invention, since three or more fireproof sheets do not overlap in a flat storage space, the storage space only needs to have a thickness of three sheets. The size can be reduced, and the flatness can be maintained. Therefore, since the thickness is small, even if it is installed in a horizontal or vertical installation place such as under a ceiling or a beam, the indoor height can be sufficiently secured, the appearance is good, and it can be installed in the case of retrofitting. It is easy to clear the conditions and can be installed, and the construction is easy.

According to the second aspect of the present invention, if the wire is pulled in by the opening and closing device, the refractory sheet can be stored in the storage place as it is, and if the wire is sent out by the opening and closing device, the refractory sheet can be directly dropped from the storage location. Since the refractory sheets do not overlap, the storage location is within the thickness of one sheet, the height of the storage location can be reduced, and its flatness can be maintained. Therefore, the same effect as described above can be achieved even with a simple structure in which the fireproof sheet is suspended and stored by the opening and closing device via the wire.

According to the third aspect of the present invention, when winding the wire with the winding shaft, H ₁ and H in the same wire are used.
_{Since 2} is located at a position shifted from the opposing position, overlapping of wires due to winding can be eliminated, and the thickness of the storage space can be reduced as much as possible. In addition, smooth winding and lowering are also possible.

According to the fourth aspect of the invention, if the roll is slid from the hanging end to the storage end and locked, the fireproof sheet hung on the roll can be folded into two and stored in the storage place. By sliding the fireproof sheet from the storage side end to the hanging side end, the fireproof sheet can be hung down from the storage place, and the fireproof sheet is folded in two, so the storage place is within the thickness range of two sheets, and the storage place Height dimension can be reduced, and its flatness can be maintained. Therefore, the same effect as described above can be achieved even with a simple structure in which the refractory sheet is hung down and housed by sliding the roll between the storage side end and the hanging side end.

According to the fifth aspect of the present invention, when the fireproof sheet is fed out of the storage location and hangs down, and the tip of the fireproof sheet reaches the floor, the periphery of the elevator door is covered with the fireproof sheet. Therefore, since the thickness dimension is small, it can be installed in front of the elevator door where it is difficult to sufficiently secure the indoor height, and the appearance becomes good. In addition, even in the case of retrofitting, it is possible to install what could not be installed conventionally, and it is possible to prevent the smoke from one floor from diffusing through the elevator shaft to other floors.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view schematically showing a fire and smoke shutter according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view similar to FIG.

FIG. 3 is a longitudinal sectional view similar to FIG.

FIG. 4 is a longitudinal sectional view similar to FIG.

FIG. 5 is a longitudinal sectional view similar to FIG.

FIG. 6 is a longitudinal sectional view showing a fireproof and smokeproof shutter according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a fire and smoke prevention shutter according to an embodiment of the present invention.

FIG. 8 is a cross-sectional view illustrating a relationship between the fire-resistant sheet and the guide rail according to the embodiment of the present invention.

FIG. 9 is a sectional view showing a modified example of the shutter case according to the embodiment of the present invention.

FIG. 10 is a longitudinal sectional view showing a fire and smoke prevention shutter according to another embodiment of the present invention.

FIG. 11 is a plan view showing the relationship between the fireproof sheet of the fireproof and smokeproof shutter of FIG. 10 and the opening and closing device.

FIG. 12 is a cross-sectional view showing a method of attaching the switchgear and the fireproof sheet in a modification of FIG. 7;

FIG. 13 is a longitudinal sectional view showing a fire and smoke prevention shutter according to another embodiment of the present invention.

FIG. 14 is a longitudinal sectional view showing a use state of a fireproof and smokeproof shutter according to another embodiment of the present invention.

FIG. 15 is a perspective view showing a conventional example.

[Explanation of symbols]

1, 1a 1b 1c 1d 1e 1f, 50 Fireproof and smokeproof shutter 2, 2a Ceiling, etc. 3, 51 Fireproof sheet 4, 4a, 4b, 4c, 52 Shutter case 5 Elevator door 6 Hall 10, 10a Wire 11 Opening / closing device 12, 12a , 13, 14, 15, 36a, 36b
Guide roll 12 a Guide bar 20, 22, 31 Bag 21, 54 Seat plate 23 Flat bar 24 Shaft 25 Pulley 26 Drive unit 27 Forehead 28 Rail 29 Storage side stopper 30 Hanging side stopper 32 Rope 33 Guide rail 34 Floor 35 Inclined bottom 40 Hanging end 41 Bar 42 Side wall 43 Storage end 44 Slot 45, 53 Roll 46 L-shaped bottom plate 46a, 47a Shaft fulcrum 47 I-shaped bottom plate 48 Doorway

Continued on the front page (72) Inventor Hiroshi Tsuchiya 1-1-26 Shiba-Daimon, Minato-ku, Tokyo Inside Nichias Corporation (72) Inventor Naohiko Saeki 1-8-1 Shintoda, Hamamatsu-shi, Shizuoka Pref. (72) Inventor Toshifumi Onuki 1-81-1, Shintoda, Hamamatsu-shi, Shizuoka Nichias F-term in Hamamatsu Laboratory Co., Ltd. (reference) 2E042 AA01 CA01 CA05 CB01 CB04 DA01 DB01

Claims (5)

[Claims] An architectural structure in which a fire-resistant sheet is hung down from below on a ceiling or a beam and its tip is disposed so that it can be landed. In a fire and smoke prevention shutter that shields the internal space such as, a flat storage space that can store a fireproof sheet under the ceiling or under the beam is provided, and when the fireproof sheet is stored in the storage space, the storage direction of the fireproof sheet is Conversion from 0 degree to 3 in one direction
A fireproof and smokeproof shutter, wherein a fireproof sheet is stored in the storage location within a range of 60 degrees. 2. An architectural structure in which a fire-resistant sheet is hung down from below on a ceiling or a beam and its tip is disposed so as to be able to land on the floor. In a fireproof and smokeproof shutter that shields an internal space such as the above, a storage place that can store most of the fireproof sheet as it is is provided under the ceiling or under the beam, and a fireproof sheet opening and closing device is provided in the storage place, A wire is attached to the base end of the fireproof sheet, the wire is sent out by the opening / closing device, the fireproof sheet is dropped from the storage location, the wire is pulled in by the opening / closing device, and the fireproof sheet is stored in the storage location. A fireproof and smokeproof shutter characterized by the following. Wherein the opening and closing fitted with a wire between the winding shaft and the base end of the refractory sheet device, fixed refractory sheet proximal end and fixed positions H ₁ and the take-up shaft and the wire of the wire position H ₂ is in a symmetrical position with respect to the center line in the width direction of the refractory sheet, and said H ₁ of the same wire and the H ₂ and characterized in that a position shifted from the position opposed in plan view The fireproof and smokeproof shutter according to claim 2. 4. An architectural structure in which a fire-resistant sheet is hung down from below on a ceiling or a beam, and its tip is disposed so that it can be landed. In a fireproof smokeproof shutter that shields the internal space such as, providing a storage place that can store a fireproof sheet under the ceiling or under the beam and fixing the base end of the fireproof sheet at the entrance side end of the storage place, A roll is provided in the storage location to freely slide the storage side end from the hanging side end thereof, and a fireproof sheet is hung on the roll locked to the storage side end. The fireproof sheet is slid from the storage location by sliding the fireproof sheet from the storage portion, the roll is slid to the storage side end, and the fireproof sheet is stored back in the storage location. Fire and smoke shutter. 5. The fireproof sheet according to claim 1, wherein the fireproof sheet is disposed so as to cover the periphery of an elevator door when the fireproof sheet hangs down from the storage location and a tip portion of the fireproof sheet lands. The fire and smoke prevention shutter according to any one of the preceding claims.