JPH11333015A - Fireproof screen equipment - Google Patents

Abstract

(57) [Summary] [Problem] Non-combustible landing body landed on floor surface 14 of shielded part 2
Provided is a fire-resistant screen device capable of preventing a gap from being formed between the lower end portion of the non-combustible sheet member 15 and the floor surface 14 without being thermally deformed even when the member 17 is heated by fire heat, and capable of sufficiently maintaining airtightness. I do. SOLUTION: A guide rail 1 which is fixed to both sides of a shielded part 2 and is opposed to each other and has an insertion opening 3 formed in a vertical direction, and an insertion opening 3 of the guide rail 1 on both sides of the guide rail 1 in a width direction. A non-combustible sheet body 15 which is provided at both ends so as to be vertically movable and shields the shielded portion 2 when descending, and is provided at a lower end portion of the non-flammable sheet body 15 to land on a floor surface 14 of the shielded portion 2. And a non-combustible flooring body 17 to be used. The non-combustible landing body 17 is
Non-combustible container provided along the lower end of non-combustible sheet body 15
And a heat-resistant weight member 19 accommodated in the non-combustible container 18 and not heat-deformable. Heat resistant weight member 19 is a molded body
Formed at 25. The heat-resistant weight member 19 is formed of gravel 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In recent years, a fire-resistant screen device having a non-steel non-combustible sheet for fire protection and flame prevention has been used in places where the use of steel fire and flame protection shutters has been prescribed by the Building Standards Law. Is to be done.

A fireproof screen device of this type is required to have fire resistance and airtightness in the same manner as a steel fireproof / flameproof shutter according to the Building Standards Law. For example, as shown in FIG. A vertical guide rail b fixed to the front side, and a non-combustible material formed of non-combustible material between the guide rails b on both sides to shield the shielded portion a between the guide rails b on both sides. A non-combustible sheet body c is provided so as to be able to move up and down, and a metal floor body e is provided at the lower end of the non-combustible sheet body c so as to land on the floor surface d of the shielded part a. When a signal is received from the motor, the brake of the motor is released and the noncombustible sheet c relatively lighter in weight is automatically lowered by the weight of the metal landing body e to shield the shielded portion a. I have.

[0004]

In the refractory screen device shown in FIG. 6, a metal landing body e is placed on the floor surface d of the shielded portion a so that the metal landing body e and the non-combustible Although the shielded portion a is shielded by the sheet c,
Since the landing body e is made of metal and both ends are affixed to the floor surface d in contact with the guide rails b on both sides, when the landing body e is heated by the fire heat, the landing body e Since the rate of thermal expansion differs depending on the temperature difference between the upper and lower portions and the front and back portions of the floor body e, the landing body e thermally expands and moves away from the floor surface d as shown in FIGS. 7 and 8. Therefore, there is a problem that a gap f is formed between the flooring body e and the floor surface d to deteriorate airtightness.

The present invention has been made in view of such a problem, and a non-flammable landing body that has landed on a floor surface of a shielded portion does not thermally deform even if it is heated by fire heat. It is an object of the present invention to provide a fire-resistant screen device which can prevent a gap from being formed between a lower end portion of a conductive sheet body and a floor surface, and therefore can sufficiently maintain airtightness when a shielded portion is shielded. .

[0006]

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 non-combustible sheet body which is provided to be movable up and down by inserting both side ends in the width direction into the insertion openings of the guide rails, and which is provided at a lower end of the non-combustible sheet body when lowering the shielded portion; A non-combustible landing body that is to be placed on the floor surface of the shielded part, wherein the non-combustible landing body is provided along a lower end of the non-combustible sheet body, And a heat-resistant weight member which is housed in a non-combustible housing and cannot be thermally deformed.

By lowering the noncombustible sheet when shielding the shielded portion, both ends in the width direction of the noncombustible sheet are along the insertion openings of the guide rails on both sides, and The weight of the heat-resistant weight member of the non-combustible landing body lowers smoothly.

In addition, the non-combustible landing body descends on the floor surface of the shielded part when the non-flammable sheet body descends, so that the non-combustible landing body and the non-combustible sheet body shield the shielded part. However, at this time, the non-combustible landing body is hermetically landed on the floor via the non-combustible container due to the weight of the heat-resistant weight member.

Accordingly, the gap between the lower end of the non-combustible sheet and the floor surface is reliably airtightly closed by the non-combustible landing body, and the non-combustible landing body and the non-combustible sheet body form the shielded portion. The flow of hot air or the like from one side to the other side is prevented, and the diffusion and spread of smoke such as hot air are prevented.

Next, even if the non-combustible landing body is heated by fire heat in a state where the shielded portion is air-tightly shielded by the non-combustible sheet member and the non-combustible landing body, Has a heat-resistant weight member that is not heat-deformable so that it is not thermally deformed, and a gap is prevented from being formed between the lower end of the non-combustible sheet body and the floor surface in this non-combustible landing body. Therefore, the airtightness with the floor surface is sufficiently maintained when the shielded portion is shielded.

Further, even if the non-combustible sheet body is bent in the pressing direction by the pressure of the hot air or the like, the weight of the heat-resistant non-deformable heat-resistant weight member of the non-combustible landing body causes the non-combustible sheet body. Is prevented from being lifted by bending toward the pressing direction of hot air or the like, and the non-combustible flooring body is prevented from being pulled up on the floor surface by the non-combustible sheet member. At the time of shielding, airtightness with the floor surface is sufficiently maintained.

According to a second aspect of the present invention, the heat-resistant weight member is formed of a heat-resistant material having a length leaving both side ends of the non-combustible sheet member. It was formed by molding.

[0013] The molded body is landed on the floor surface of the shielded portion via the non-combustible container, so that the molded body is separated from the shielded portion via the non-combustible container by the weight of the molded body. He is airtightly placed on the floor.

Further, since the molded body is formed to have a length leaving both side ends of the noncombustible sheet body, the insertion openings of the guide rails on both sides are formed at both side ends in the width direction of the noncombustible sheet body. It is formed with a narrow width that can be raised and lowered, and the airtightness between the insertion openings of the guide rails on both sides and the both ends in the width direction of the noncombustible sheet body is enhanced.

Further, by housing the molded body in the non-combustible container, a heat-resistant non-combustible landing body which cannot be thermally deformed can be easily constituted.

According to a third aspect of the present invention, in the fire-resistant screen device according to the first aspect, the heat-resistant weight member is formed of gravel.

Then, the gravel is landed on the floor surface of the shielded portion via the non-combustible container, and the weight of the gravel causes the gravel to land on the floor surface of the shielded portion via the non-flammable container. In this case, if the surface of the floor of the shielded part is uneven or inclined, the gravel is deformed according to the surface shape of the floor of the shielded part via the non-combustible container. And then landed,
Together with the weight of the gravel, the gravel is hermetically landed on the floor surface of the shielded portion via the non-combustible container.

[0018]

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

Numerals 1 denote left and right guide rails vertically fixed to the opposite side walls of the shielded portion 2 so as to face each other. The left and right guide rails 1 face each other and are vertically inserted. The opening 3 is formed to have a substantially U-shaped cross section. Although not shown, the insertion opening 3 is formed in each of the inner plate portions of the guide rail 1 and has a vertical guide piece formed to face an opening edge thereof. The shielded portion 2 means an opening such as an entrance, an emergency exit, a passage, and the like, and an opening at a place that needs to be shielded as a fire protection section on fire prevention and flame prevention.

A box 5 is fixed to the ceiling wall 4 of the shielded portion 2 by inserting and fixing the upper ends of the left and right guide rails 1 respectively. And a left-right opening 6 through which a non-combustible sheet member, which will be described later, opens and communicates with the lower surface of the shielded portion 2.

A winding shaft 8 having a left-right winding drum 7 is rotatably mounted in the box 5. One end of the winding shaft 8 is driven by the winding shaft 8. Rotating wheel 9 is fixed. A forward / reverse rotatable motor 10 is fixed in the box 5, and an output shaft of the motor 10 is provided.
A driving wheel 12 is fixed to the position 11 opposite to the rotating wheel 9, and an endless revolving body is provided between the driving wheel 12 and the rotating wheel 9.
13 is suspended freely. The motor 10 is automatically stopped at a predetermined number of rotations set in accordance with a landing position at which a non-combustible landing body, which will be described later, land on the floor surface 14 of the shielded portion 2. Has become.

Next, reference numeral 15 denotes an ascending and descending non-combustible sheet that shields the shielded portion 2. The non-combustible sheet 15 is
An upper end portion is fixed to the winding drum 7 and is rewound so as to be freely rewound. At both end portions in the width direction thereof, insertion portions 16 are inserted into the insertion openings 3 of the left and right guide rails 1 so as to be vertically movable. At the lower end of the non-combustible sheet body 15, a non-combustible landing body 17 that is to be placed on the floor surface 14 of the shielded portion 2
Is configured.

The non-combustible landing body 17 includes a non-combustible container 18 provided along a lower end of the non-combustible sheet member 15 and a heat-resistant non-deformable container accommodated in the non-combustible container 18. And a weight member 19.

The non-combustible container 18 folds the non-combustible sheet 15 upward, and overlaps the upper end 21 of the folded sheet portion 20 with the non-combustible sheet 15,
The overlapping portion 22 is fixed by means of sewing with a non-combustible sewing thread or the like, and is formed by opening both ends. The folded sheet portion 20 has a bag-like body 24 having a hollow accommodation portion 23 for accommodating the heat-resistant weight member 19 and open at both ends.

The non-combustible sheet 15 provided with the non-combustible container 18 along the lower end is made of a non-combustible cloth made of, for example, glass cloth, silica cloth or the like.

The non-heat-deformable heat-resistant weight member 19 is formed by a molded body 25 molded from a heat-resistant material having a length that leaves the insertion portions 16 at both end portions of the non-combustible sheet body 15. I have. The molded body 25 is formed of a concrete plate having a predetermined thickness and height, an ALC plate (lightweight cellular concrete plate) or a calcium silicate plate.

Then, the molded body 25 of the heat-resistant weight member 19 is inserted into the accommodation portion 23 of the bag-like body 24 of the non-combustible accommodation body 18 from one end opening of the accommodation portion 23 to the other end opening. The non-combustible landing body 17 is formed by inserting and housing the bag-like body 24 and sealing both ends of the bag-like body 24 with sewing thread or the like. An insertion protruding portion for vertically inserting a sealing portion sealing both ends of the bag-like body 24 at both ends of the non-combustible landing body 17 into the insertion openings 3 of the left and right guide rails 1. As a protrusion.

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

In normal times, such as during a non-fire situation, the non-combustible sheet 15 is wound up and raised, and the non-combustible landing body 17 at the lower end of the non-combustible sheet 15 is attached to the ceiling at the upper ends of the left and right guide rails 1. It is located in a storage state in the box 5 of the wall part 4, and
The lower end of the non-combustible landing body 17 is located in the opening 6 on the lower end surface of the box 5.

Therefore, the lower end of the non-combustible flooring body 17 closes the opening 6 on the lower end surface of the box 5 so that the appearance is good and the opening 6 of the box 5 opens on the lower surface of the ceiling wall 4. The unsightly appearance is prevented, and the appearance is maintained as a passage for people.

Next, when the shielded portion 2 is shielded, for example, when the brake of the motor 10 is released by a signal from a sensor such as a smoke detector in the event of a fire that shields the shielded portion 2, the non-combustible sheet member 15 is sequentially rewound from the winding drum 7 by its own weight.

The non-combustible sheet body 15 is lowered by the insertion portions 16 of the non-combustible sheet body 15 being guided by the insertion openings 3 of the left and right guide rails 1 respectively. Due to the weight of the heat-resistant weight member 19 of the non-combustible flooring body 17 provided at the lower end of the body, it is smoothly and quickly lowered.

When the non-combustible flooring body 17 descends on the floor surface 14 of the shielded part 2 due to the lowering of the non-combustible sheet body 15, the motor 10 rotates at a predetermined rotation speed and stops. Then, the shielded portion 2 is shielded by the non-combustible landing body 17 and the non-combustible sheet member 15. At this time, the non-combustible landing body 17 is insulated by the weight of the heat-resistant weight member 19. The floor is air-tightly placed on the floor surface 14 via the lower surface portion 18.

That is, since the heat-resistant weight member 19 is formed of a molded body 25 formed of a heat-resistant material having a length left on both sides of the non-combustible sheet member 15, the molded body 25 is formed. Is landed on the floor surface 14 of the shielded part 2 via the non-combustible container 18, and the weight of the molded body 25 causes the molded body 25 to move through the lower surface of the non-flammable container 18. The floor is air-tightly placed on the floor surface 14.

Therefore, the space between the lower end of the non-combustible sheet body 15 and the floor surface 14 is reliably airtightly closed by the non-combustible flooring body 17, and the non-combustible flooring body 17 and the non-combustible sheet body 15 This prevents hot air and the like from flowing in and out from one side of the shielded portion 2 to the other side, and prevents diffusion of hot air and the like and spread of fire.

Further, since the molded body 25 is formed to have a length leaving the insertion portions 16 at both end portions of the non-combustible sheet member 15, the insertion openings 3 of the guide rails 1 at both side portions are formed of the non-combustible sheet member. The insertion portions 16 at both ends in the width direction of the guide rail 15 are formed to have a narrow width capable of ascending and descending, and the insertion portions 3 of the guide rails 1 on both sides and the insertion portions 16 at both end portions in the width direction of the noncombustible sheet body 15 The airtightness is improved.

Further, by housing the molded body 25 in the non-combustible container 18, the heat-resistant non-combustible landing body 17 which cannot be thermally deformed can be easily constituted.

Next, with the non-combustible sheet body 15 and the non-combustible landing body 17 airtightly shielding the shielded portion 2, even if the non-combustible landing body 17 is heated by fire heat, the non-combustible Since the heat-resistant weight member 19 has the heat-resistant weight member 19 that is not thermally deformable, the heat-resistant weight member 19 does not thermally deform due to thermal expansion. Weight member
Even when a temperature difference occurs between the upper and lower portions and the front and back portions, and the expansion ratio is different, the heat-resistant weight member 19 can thermally expand and thermally deform in a direction away from the floor surface 14. In addition, it is possible to prevent a gap from being formed between the lower end portion of the non-combustible sheet member 15 and the floor surface 14 in the non-combustible landing body 17.

Therefore, the heat-resistant weight member 19 is continuously placed on the floor surface 14 without interruption, and the airtightness between the heat-resistant weight member 19 and the floor surface 14 is sufficiently maintained when the shielded portion 2 is shielded.

Further, even if the non-combustible sheet member 15 tries to bend in the pressing direction due to the pressure of hot air or the like,
The weight of the heat-resistant non-deformable heat-resistant weight member 19 of the non-combustible landing body 17 prevents the non-combustible sheet body 15 from flexing and pulling up in a pressing direction of hot air or the like. At 15, the incombustible landing body 17 is prevented from being lifted onto the floor surface 14.

Therefore, the heat-resistant weight member 19 is continuously placed on the floor surface 14 without interruption, and the airtightness between the heat-resistant weight member 19 and the floor surface 14 is sufficiently maintained when the shielded portion 2 is shielded.

Next, in the above-described embodiment, the non-combustible container 18 of the non-combustible flooring body 17 is a bag-like body 24 formed by folding the non-combustible sheet 15 and integrally formed at the lower end of the non-combustible sheet 15. However, the present invention is not limited to this, and the non-combustible container 18 may be formed separately from the non-combustible sheet 15 and fixed to the lower end of the non-combustible sheet 15. Good.

In this case, for example, as shown in FIG. 4, the non-combustible container 18 is formed of a bag-like body 27 having the accommodating portions 26 opened at both ends with the same material as the non-combustible sheet member 15. The non-combustible sheet 15 between the overlapping polymer pieces 28 of the bag 27
And the polymer pieces 28 are integrally fixed by a fixing means such as sewing with a non-combustible sewing thread.

The non-combustible landing body 17 is constructed by inserting and housing the heat-resistant weight member 19 that cannot be thermally deformed into the housing portion 26 of the bag-like body 27. Other configurations are the same as those of the above-described embodiment, and therefore, the same components as those of the above-described embodiment are denoted by the same reference numerals used in the above-described embodiment, and description thereof is omitted.

With this configuration, the space between the lower end portion of the non-combustible sheet member 15 and the floor surface 14 is reliably hermetically closed by the non-combustible landing member 17 as in the case of the above-described embodiment. ,
The incombustible flooring body 17 and the incombustible sheet body 15 prevent hot air and the like from flowing in and out from one side of the shielded portion 2 toward the other side, and prevent diffusion and spread of smoke such as hot air. You.

The non-combustible sheet 15 and the non-combustible landing body
Even if the non-combustible flooring body 17 is heated by fire heat in a state where the shielded portion 2 is airtightly shielded by the heat-resistant weight member,
19 is continuously placed on the floor surface 14 without interruption, and the airtightness with the floor surface 14 is sufficiently maintained when the shielded portion 2 is shielded.

Further, in the above-described embodiment, the case where the heat-resistant weight member 19 of the non-combustible flooring body 17 is formed of the molded body 25 has been described. You may make it form with the gravel 30.

In this case, for example, as shown in FIG. 5, the non-combustible container 18 of the non-combustible
15 is folded to form a bag-shaped body 31 having an accommodation portion 26 at the lower end of the non-combustible sheet body 15 integrally, that is, the folded end 32 of the non-combustible sheet body 15 is positioned at a predetermined position of the non-combustible sheet body 15. These overlapping portions 33 are integrally fixed by fixing means such as sewing with a non-combustible sewing thread, and the bag-shaped body 31 having the accommodation portion 26 at the lower end of the non-combustible sheet body 15 is formed. Are formed integrally, and the gravel 30 is filled into the bag-like body 31,
After filling the gravel 30, both ends of the bag 31 are sealed with sewing thread or the like, a predetermined amount of gravel 30 is sealed in the bag 31, and a non-combustible The heat-resistant weight member 19 that is not thermally deformable in the width direction of the flexible sheet member 15 is formed. And
The sealing portions sealing both ends of the bag-shaped body 31 at both ends of the heat-resistant weight member 19 are projected as insertion projections for vertically inserting into the insertion openings 3 of the left and right guide rails 1. Form.

As the gravel 30, a large number of pebbles or a mixture of a large number of pebbles and sand is used. The large number of pebbles may be quarried or crushed stones. Is preferably sealed in the bag-like body 31 in a state of being meshed.

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

With this configuration, the gravel 30 is landed on the floor surface 14 of the shielded portion 2 via the lower surface of the non-combustible container 18, and the gravel 30 is weighted by the weight of the gravel 30.
Is the floor surface 14 of the shielded part 2 via the lower surface of the non-combustible container 18.
At this time, if the surface of the floor surface 14 of the shielded portion 2 is uneven or inclined, the gravel 30 is applied to the shielded portion 2 via the lower surface of the non-combustible container 18. The floor 30 is deformed according to the surface shape of the floor 14 and is landed. The gravel 30 is airtightly sealed to the floor 14 of the shielded part 2 via the lower surface of the non-combustible container 18 in combination with the weight of the gravel 30. To be landed.

Therefore, as in the above-described embodiments, the space between the lower end of the non-combustible sheet member 15 and the floor surface 14 is reliably air-tightly closed by the non-combustible flooring member 17, and the non-combustible Floor
17 and the non-combustible sheet member 15 prevent hot air and the like from flowing in and out from one side of the shielded portion 2 toward the other side, and prevent diffusion of hot air and the like and spread of smoke.

The non-combustible sheet 15 and the non-combustible landing body
Even if the non-combustible flooring body 17 is heated by fire heat in a state where the shielded portion 2 is airtightly shielded by the heat-resistant weight member,
19 is continuously placed on the floor surface 14 without interruption, and the airtightness with the floor surface 14 is sufficiently maintained when the shielded portion 2 is shielded.

[0054]

According to the first aspect of the present invention, the non-combustible flooring body comprises a non-combustible container provided along the lower end of the non-combustible sheet member and a heat-receiving member accommodated in the non-combustible container. Since it has a heat-resistant weight member that is not deformable, the non-combustible landing body that has landed on the floor surface of the shielded part does not thermally deform even when heated by fire heat, and the lower end of the non-combustible sheet body Gap between the hot air and the like flowing out and in between the floor and the floor can be reliably prevented. Therefore, when the non-combustible flooring is used to shield the shielded portion, the lower end of the non-combustible sheet and the floor are not covered. The airtightness between them can be sufficiently maintained, and the diffusion of smoke such as hot air and the spread of fire can be reliably prevented.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the heat-resistant weight member is formed by molding a heat-resistant material having a length that leaves both end portions of the non-combustible sheet member. The molded body can be securely and hermetically landed on the floor surface of the shielded portion via the non-combustible container due to the weight of the molded body.

Further, since the molded body is formed to have a length leaving both end portions of the noncombustible sheet member, the insertion openings of the guide rails on both side portions can move up and down both side ends in the width direction of the noncombustible sheet member. It can be formed with a narrow width, and the airtightness between the guide rail insertion openings on both sides and both ends in the width direction of the noncombustible sheet body can be improved. In addition, by housing the molded body in the non-combustible container, a heat-resistant non-combustible landing body that cannot be thermally deformed can be easily configured.

According to the third aspect of the present invention, in addition to the effects of the first aspect, the heat-resistant weight member is formed of gravel, and the weight of the gravel causes the shielded portion to pass through the non-combustible container. When the surface of the floor of the shielded portion is uneven or inclined, the gravel is interposed via the non-combustible container. The floor is deformed in accordance with the surface shape of the ground, and together with the weight of the gravel, the gravel can be hermetically landed on the floor surface of the shielded portion via the incombustible container.

Further, by storing a predetermined amount of gravel in the non-combustible container, a heat-resistant non-combustible landing body that cannot be thermally deformed can be easily constructed. At this time, by adjusting the amount of gravel, In addition, the non-combustible landing body can be easily configured with a predetermined weight according to the situation of the shielded portion.

[Brief description of the drawings]

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

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged cross-sectional view of the non-combustible landing body according to the first embodiment.

FIG. 4 is an enlarged cross-sectional view of a non-combustible landing body according to another embodiment.

FIG. 5 is an enlarged cross-sectional view of a non-combustible landing body according to still another embodiment.

FIG. 6 is a front view of a portion of a prior art refractory screen device.

FIG. 7 is a front view showing a state in which the incombustible landing body is thermally deformed.

FIG. 8 is an enlarged sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail 2 Shielding part 3 Insertion opening 14 Floor surface 15 Non-combustible sheet body 17 Non-combustible landing body 18 Non-combustible container 19 Heat-resistant weight member 25 Molded object 30 Gravel

Claims (3)

[Claims] 1. A guide rail which is fixed to both sides of a shielded portion and faces each other and has an insertion opening formed in a vertical direction, and both side ends in the width direction are inserted into the insertion openings of the guide rails on both sides. A non-combustible sheet body that is inserted and raised and lowered to shield the shielded part when descending, and a non-combustible landing body provided at a lower end of the non-combustible sheet body and landing on the floor surface of the shielded part A non-combustible landing body, a non-combustible container provided along a lower end portion of the non-combustible sheet body, and a heat-resistant non-deformable heat stored in the non-combustible container. A refractory screen device, comprising: a weight member. 2. The fire-resistant weight member according to claim 1, wherein the heat-resistant weight member is formed by molding a heat-resistant material having a length leaving both end portions of the non-combustible sheet member. Screen device. 3. The fire-resistant screen device according to claim 1, wherein the heat-resistant weight member is formed of gravel.