JPH1099464A - Fireproofing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent spread of fire to adjoining houses in a dwelling district, in particular a congested, and eliminating the risk of obstructing the fire extinguishing activity when a sheet is used. SOLUTION: A fireproofing device is composed of a roll supporting part to be installed over a window W where a roll shaft is attached to a roll 1 formed by winding a fireproof sheet 11 of a size capable of enclosing the window W and a weight supporting part where a weight rod 12 furnished at one edge of the sheet 11 is detained and which permits the rod 12 to drop in the event of a fire, wherein the weight supporting part spreads the sheets 11 at a fire so as to enclose the window W. If necessary, the roll supporting part has a means to drop the roll 1, for example by receiving a discharged water pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire prevention device for preventing a fire from spreading even if a fire occurs in a densely populated area of a house.

[0002]

In recent years, great disasters such as the Great Hanshin Earthquake have attracted attention, and there has been a remarkable improvement in awareness of disaster prevention in ordinary households. It is also new to remember that the fire spread extensively after the earthquake and killed many people who could not move due to the collapse. Such a situation,
Partly, the spread of fire did not stop until it reached a large road, a park or other open space.

[0003] Such a spread of fire spreads when the flame spreads to an adjacent building, but at that time, the role of the window is large, and even if the wall is not burned by a fire-resistant structure other than a wooden house, the window can be opened. The fire often spreads. That is, in a house where a fire has occurred, the window glass is broken by the heat inside, and the flame is blown out with intense momentum using the broken window of the glass as an outlet. Due to the blowing of the flame, the heat of the flame propagates when there is an adjacent house, and the wall ignites if it is wooden, and if there is a window even if it is not wooden, the window glass will break similarly, and the interior of the house will be broken. Combustibles will ignite.

Japanese Patent Laid-Open Publication Nos. Sho 57-13059 and 63-166261 disclose fire prevention devices for preventing such spread of fire. However, in these publications, the fire protection sheet is a large-scale fire protection sheet that completely covers the entire outer periphery of a house, and water is sprayed from above to wet the fire protection sheet. Such a device is a large-scale facility, the weight of the rolled-up sheet is not light, and it is not easily provided under the eaves. In order to spray water from the upper part, piping equipment is required, and it is not preferable to use water in the event of a fire in the neighbor unless a dedicated water storage tank is used, in terms of supplying fire extinguishing water.

[0005] In addition, since the devices described in these publications are large-scale, they may hinder the operation of the fire brigade when necessary.

In view of the above, an object of the present invention is to prevent the spread of fire between adjacent houses by protecting windows, particularly in densely populated residential areas. Also,
The purpose is to prevent firefighting activities when using seats.

[0007]

According to a first aspect of the present invention, there is provided a roll supporting portion having a roll shaft attached to a roll obtained by winding a fireproof sheet large enough to cover a window, and disposed above the window, A weight support portion that locks a weight bar provided on one side of the sheet and drops the weight bar in case of fire,
The weight supporter is characterized in that the fireproof sheet is spread and the window is covered in the event of a fire. As a result, the roll locking portion responds to heat from the outside, etc., and prevents fire from spreading to the installed house, and also responds to heat from the inside,
The spread of fire from the house to be installed to the adjacent house can be prevented.

According to a second aspect of the present invention, there is provided a roll supporting portion provided on a house with a roll shaft attached to a roll on which a fire-resistant sheet is wound, and a weight bar provided on one side of the fire-resistant sheet. A weight supporting portion for dropping a rod, wherein the weight supporting portion spreads the fireproof sheet in the event of a fire, and the roll supporting portion has means for dropping a roll as necessary. It is. Firefighting activities of the fire brigade often use windows, and as a result, firefighting activities through windows are easy to carry out, such as when discharging water into a house.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described. FIGS. 1, 2 and 3 are a right side view, a left side view and a front view of a roll-down sheet left fixing bracket which is a fire protection device according to an embodiment of the present invention, and FIGS.
FIG. 2 is a top view and a bottom view showing an upper half holding a roll. Further, FIG. 6 is a schematic diagram showing the installation state of the roll-down sheet by the fixing bracket shown in FIGS.

The roll 1 is obtained by winding up a refractory sheet 11, and a weight bar 12 is fixed to a terminal side of the refractory sheet 11. The refractory sheet 11 has a size enough to cover the window W to be targeted, and is made of a special heat-resistant fiber containing about 95% silicon dioxide (specifically, 94.1%). 1000 continuously
It can withstand a high temperature of at least ℃ and temporarily withstands at least about 1600 ℃, and is basically a square that sufficiently covers the window W. A hollow cylindrical roll core 13 is fixed to one side of the refractory sheet 11, and a weight bar 12 is fixed to the opposite side. This refractory sheet 11 is
Roll 1 is roll 1.

The roll 1 has a roll shaft 31 of a roll indicating portion 3 projecting from a fixing plate 21 of a fixing bracket 2 provided in the same shape symmetrical to the left and right. Have been. And the weight bar 12
The left and right ends are locked in the depressions 41 of the weight indicating portion 4 which protrude from the fixing plate 21 of the fixing metal.

The weight instructing section 4 removes the weight bar 12 from the recess 41 and drops it when a fire occurs. That is, the depression 41 for designating the weight bar 12 is formed in the arm 42, and the arm 42 is connected to the rod 43 protruding from the fixed plate 21 via the rotation shaft 44, so that the arm 42 can rotate in the vertical direction. Is formed. An arm stopper 45 for restricting the upward rotation of the arm 42 is formed on the rod 43, and restricts the position of the arm 42 which is pulled upward by the wire 46.

Here, in a normal state, the wire 46 under tension is released when a fire occurs due to the action of a heat sensing means (not shown), the wire 46 is loosened and the arm 42 pivots downward, and the weight from the recess 41 is lifted. The rod 12 comes off and falls, and the roll 1 rotates around the roll shaft 31, and the refractory sheet 11 spreads and hangs down around the roll core 13 to cover the window W. As a heat sensing means (not shown), a hook that simply hooks the wire 46 is made of bimetal,
The hook may be released by a shape memory substance, a glass bulb or a heat-sensitive substance such as a heat-soluble substance, or the hook may be released electrically based on a signal from a heat detector or a flame detector for detecting a fire. You may. In the method using the heat-sensitive variable material, no power supply is required, but it is necessary to release the tension of the wire 46 in conjunction with the arrangement portion of the heat-sensitive means, and it is necessary to pay attention to collision of objects. Also, in the method using the signal of the fire detector, a power supply is required, but it is possible to arrange multiple detectors, internal fire and external fire,
Further, there is an advantage that it can be easily connected to a manual switch or the like.

In some cases, the roll instruction unit 3 removes the roll core 13 from the roll shaft 31 and drops the roll 11 when the spread sheet 11 is disturbed by the fire brigade for firefighting activities. That is, the roll shaft 31 that indicates the roll core 13 is formed on the arm 32, and the arm 32 is
The arm 32 is connected to a rod 33 protruding from the fixed plate 21 via a rotation shaft 34 so that the arm 32 can rotate in the horizontal direction. An arm stopper 35 is formed on the rod 33 to limit the rotation of the arm 32 in the horizontal front direction.
The position of the arm 32 is restricted.

Here, the firefighting activities of the fire brigade, in particular, the windows W
Explaining the water discharge work using a fire, the fire discharge water J of the fire brigade, which is not affected in the horizontal direction in the normal state, is a fireproof sheet 1
1, the water core J collides with the roll core 13
, A force is applied to the roll shaft 31 in the horizontal depth direction.
The arm 32 rotates in the horizontal depth direction by the force, the roll core 13 is detached from the integrally rotated roll shaft 31 and falls, and the spread fireproof sheet 11 also falls and the window W is opened. . And the water discharge work can be performed from the window W into the house K. Also, for example, rescue work other than water discharge work can be eliminated by the fire brigade because the fire brigade approaches the window.

A method of removing the roll core 13 from the roll shaft 31 and dropping the roll core 31 is not limited to the above-described method.
In addition, an arm may be provided on the rotatable arm 32, and the roll core 13 may be detached by discharging water to the arm. In that case, it is easy for the fire brigade to understand. Further, in the method in which the roll shaft 31 is rotated horizontally, the sheet 11 may fall due to unexpected pressing from the outside, so that the roll shaft 31 may be rotated downward when the weight is felt. As the weight, a container for receiving the water discharged by the fire brigade is provided, and the weight of the water discharged can be used.
Further, the water absorption of the sheet 11 may be directly used. However, in this method, it is necessary to improve the response of the roll axis 31 to the weight with high accuracy.

Next, a second embodiment of the present invention will be described. The fixing fittings for the roll-down sheet are the same as those in the first embodiment, and are the same as those in FIGS. 1, 2, 3, 4, and 5. Further, the installation state of the roll-down sheet according to the second embodiment is also shown in FIG. 6 in the same manner as in the first embodiment.
1h is wound up, and a weight bar 12h is fixed to the end side of the fireproof sheet 11h. This refractory sheet 11h has a size to cover the target wall H, and is made of a special heat-resistant fiber containing about 95% silicon dioxide (specifically, 94.1%). It can withstand a high temperature of 1000 ° C. or more continuously and temporarily withstands a temperature of about 1600 ° C. or more. Then, a hollow cylindrical roll core 13h is fixed to one side of the fireproof sheet 11h,
A weight bar 12h is fixed to the opposite side. The roll 1h is obtained by winding the refractory sheet 11h around the roll core 13h.

The roll 1h is provided with a fixing plate 2 of a fixing fitting 2 provided in the same shape symmetrical to the left and right as in the first embodiment.
A roll shaft 31 of the roll indicating unit 3 protruding from the first roll 1 is passed through the roll core 13h of the roll 1h from the left and right and is locked. The weight bar 12h is fixed to the fixing plate 21 of the fixing bracket.
The left and right ends are locked in the recesses 41 of the weight indicating portion 4 which protrude separately from the center.

The weight instructing section 4 removes the weight bar 12h from the recess 41 and drops it when a fire occurs, as in the first embodiment. That is, the weight bar 12
A recess 41 for designating h is formed in an arm 42, and the arm 42 is connected to a rod 43 protruding from the fixed plate 21 via a rotation shaft 44, and the arm 42 is formed so as to be rotatable in a vertical direction. . An arm stopper 45 for restricting the upward rotation of the arm 42 is formed on the rod 43, and restricts the position of the arm 42 which is pulled upward by the wire 46.

Here, in a normal state, the wire 46 to which tension is applied becomes free in the event of a fire due to the action of heat sensing means (not shown), and the wire 46 is loosened, the arm 42 pivots downward, and the weight from the recess 41 is lifted. The rod 12h comes off and falls, and the roll 1h rotates around the roll shaft 31 so that the refractory sheet 11h spreads and hangs down around the roll core 13h to cover the wall H. As the heat sensing means (not shown), the same means as in the first embodiment is used.

In some cases, the sheet 11h spread by the fire brigade for firefighting activities is in the way, and the roll instruction unit 3 removes the roll core 13h from the roll shaft 31 and drops it. That is, as in the first embodiment, the roll shaft 31 for indicating the roll core 13 h is formed on the arm 32, and the arm 32 is connected to the rod 33 protruding from the fixed plate 21 via the rotation shaft 34. 3
2 is formed so as to be rotatable in the horizontal direction. The rod 33 is provided with an arm stopper 35 for restricting the rotation of the arm 32 in the horizontal front direction, thereby restricting the position of the arm 32.

Here, as a fire fighting activity of the fire brigade, in particular, the wall H
The water discharge operation using the window Wh will be described. In the normal state, when the water discharged by the fire brigade, which does not exert any force in the horizontal direction, hits the upper side of the fireproof sheet 11h, the roll core 13h is hit by the water discharge collision as in the first embodiment. Through the roll shaft 31
A force is applied to the rear side in the horizontal direction. The arm 32 rotates in the horizontal depth direction by the force, and the roll shaft 3 rotates integrally.
The roll core 13h falls off from 1 and the fireproof sheet 11h that has spread also falls, so that the window Wh of the wall H is opened. And the water discharge work can be performed from the window W into the house K. For rescue work other than the water discharge work, the fire brigade can enter the house K with the sheet 11h dropped in advance by water discharge.

A method similar to that of the first embodiment can be used to drop the roll core 13h from the roll shaft 31 and drop it.

As described above, the first invention according to the present invention provides an arm 32 which is provided above the window W by attaching the roll shaft 31 to the roll 1 on which the refractory sheet 11 large enough to cover the window W is wound up. And a roll supporting portion 3 by a rod 33,
A weight bar 12 provided on one side of the refractory sheet 11 is locked, and the arm 42 for dropping the weight bar 12 in the event of a fire, a rod 43, and a weight support portion 4 made of a wire 46 are provided. The fireproof sheet 11 is spread out to cover the window W, and the weight support 4 is provided with a fire detection device such as a heat sensing means (not shown) inside and outside the house K where the roll 1 is provided as necessary. Means are provided to drop the weight bar 12 based on any fire detection. As a result, the roll supporting portion 3 prevents fire from spreading to the house K to be installed in response to heat or the like from the outside, and also adjoins the house K to be installed in response to heat or the like from the inside. It is also possible to prevent the spread of fire to the house.

In the second invention, the roll support portion 3 provided by the arm 32 and the rod 33 provided in the house with the roll shaft 31 attached to the roll 1h on which the refractory sheet 11h is wound, and the roll 1h on one side of the refractory sheet 11h. Weight bar 1 to be provided
An arm 42 for locking the weight 2h and dropping the weight bar 12h in the event of a fire, and a weight support portion 4 made of a rod 43 and a wire 46. The weight support portion 4 extends the fireproof sheet 11h in the event of a fire. The roll support 3 has means for dropping the roll 1h as necessary, and the roll support 3 has means for dropping the roll 1h by receiving water discharge pressure or the like. . Firefighting activities of the fire brigade often use windows Wh, and as a result, firefighting activities from windows Wh are easy to perform, such as when water is discharged into house K.

[Brief description of the drawings]

FIG. 1 is a right side view of a left fixing bracket of the present invention.

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a top view of the upper half of FIG. 1;

FIG. 5 is a bottom view of FIG. 4;

FIG. 6 is a schematic diagram showing an installation state of FIG. 1;

[Explanation of symbols]

 1, 1h Roll 11, 11h Fireproof sheet 12, 12h Weight bar 2 Fixture 3 Roll support 4 Weight support H Wall K House W, Wh Window

Claims (5)

[Claims] 1. A roll supporter disposed above a window by attaching a roll shaft to a roll obtained by winding a refractory sheet large enough to cover a window, and a weight bar provided on one side of the refractory sheet. And a weight supporting portion for dropping the weight bar in the event of a fire, wherein the weight supporting portion spreads the fireproof sheet and covers the window in a fire. 2. The fire protection system according to claim 1, wherein the roll support has means for dropping the roll as required. 3. A roll supporting portion provided on a house with a roll shaft attached to a roll on which a fire-resistant sheet is wound, and a weight bar provided on one side of the fire-resistant sheet is locked, and the weight bar is dropped in a fire. A weight support portion, wherein the weight support portion extends the fireproof sheet in the event of a fire, and the roll support portion has means for dropping a roll as necessary. . 4. The weight supporting portion according to claim 1, wherein fire detecting means is provided inside and outside the house where the roll is provided, and means for dropping the weight bar based on the fire detection of each fire detecting means. Fire protection device. 5. The fire protection device according to claim 2, wherein the roll supporting portion has means for dropping the roll by receiving water pressure.