JP3670090B2 - Fire protection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire prevention device that prevents the spread of fire even if a fire occurs in a densely populated area of a house.
[0002]
[Problems to be solved by the invention]
In recent years, major disasters such as the Great Hanshin Earthquake have attracted attention, and there has been a marked improvement in disaster prevention awareness among ordinary households. And it is also memorable that the fire spread endlessly after the earthquake and took many lives of those who could not move due to the collapse. This is partly because the spread of fire did not stop until it reached a plaza such as a large road or park.
[0003]
This type of fire spreads by spreading flames to adjacent buildings, but at that time, the role of windows is large, and even if the walls do not burn due to the fireproof structure other than the wooden house, the fire propagates through the windows and fires. Often spread. That is, in a house where a fire has occurred, the window glass is broken by the internal heat, and the flame is blown out with a strong momentum using the broken window of the glass as an outlet. With this flame blowout, the heat of the flame propagates when there is an adjacent house, and if it is wooden, the wall will be lit, and if it is not wooden, if there is a window, the window glass will break in the same way, The flammable material will catch fire.
[0004]
In order to prevent such fire spread, for example, Japanese Utility Model Publication Nos. 57-13059 and 63-166261 have been disclosed. However, these publications are large-scale fireproof sheets that completely cover the entire outer periphery of the house, and further spray water from the top to wet the fireproof sheets. Such an apparatus is a large facility, and the weight of the rolled up sheet is not light and cannot be easily provided under the eaves. In order to sprinkle water from the top, piping equipment is necessary, and it is not preferable to use water when the neighbor is in fire from the viewpoint of supplying fire-extinguishing water unless a dedicated water tank is used.
[0005]
In addition, since devices such as these publications are large-scale, they may cause trouble when fire brigade activities are required.
[0006]
From such a point, the present invention aims to prevent the spread of fire between adjacent houses by protecting windows particularly in dense residential areas. Also, the purpose is not to make it an obstacle to fire fighting activities when using a seat.
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a roll support portion disposed on the upper side of a roll shaft with a roll shaft wound around a fireproof sheet having a size covering the window, and a weight provided on one side of the fireproof sheet. A weight support portion for locking the rod and dropping the weight rod in the event of a fire, wherein the weight support portion covers the window by spreading the fireproof sheet in the event of a fire , and the roll support portion Is characterized by having means for dropping the roll as required . As a result, the roll support unit responds to heat from the outside and prevents the spread of fire to the installed house, and also responds to heat from the inside to the adjacent house from the installed house. Further, it is possible to prevent the spread of fire, and further, the roll is dropped as necessary, so that a water discharge operation or a rescue operation can be performed from the window.
[0008]
Moreover, 2nd invention attaches a roll axis | shaft to the roll which wound up the fireproof sheet, the roll support part arrange | positioned in a house, and the weight bar provided in one side of a fireproof sheet are latched, and a weight bar is dropped at the time of a fire A weight support portion that spreads the refractory sheet in the event of a fire, and the roll support portion includes means for dropping the roll as necessary. Fire fighting activities of fire brigades often use windows, and as a result, fire fighting activities through windows are easy to perform, such as when water is discharged into a house.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described. 1, 2, and 3 are a right side view, a left side view, and a front view of a roll down seat left fixing bracket that is a fire prevention device according to an embodiment of the present invention, and FIGS. 4 and 5 hold a roll. It is the top view and bottom view which showed the upper half. Further, FIG. 6 is a schematic view showing an installation state of the roll-down sheet by the fixing bracket shown in FIG. 1 to FIG.
[0010]
The roll 1 is obtained by winding up a fireproof sheet 11, and a weight bar 12 is fixed to the end side of the fireproof sheet 11. The fireproof sheet 11 has a size covering the target window W, and the material is knitted special heat resistant fiber containing about 95% (specifically, 94.1%) of silicon dioxide. It can withstand a high temperature of 1000 ° C. or higher continuously, can temporarily withstand about 1600 ° C. or higher, and is basically a rectangular shape that sufficiently covers the window W. And the hollow cylindrical roll core 13 is fixed to one side of this fireproof sheet 11, and the weight bar 12 is fixed to the opposite side. A roll 1 is formed by winding the fireproof sheet 11 around a roll core 13.
[0011]
In the roll 1, the roll shaft 31 of the roll instruction unit 3 protruding from the fixing plate 21 of the fixing metal fitting 2 provided in the same symmetrical shape is passed through and locked to the roll core 13 of the roll 1 from the left and right. . The weight bar 12 is engaged at the left and right ends with a recess 41 of the weight indicating portion 4 that protrudes separately from the fixing plate 21 of the fixing bracket.
[0012]
And the weight instruction | indication part 4 removes the weight stick | rod 12 from the hollow 41, and drops it at the time of a fire outbreak. In other words, the depression 41 that points to 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 be rotated in the vertical direction. Is formed. The rod 43 is formed with an arm stop 45 that restricts the upward rotation of the arm 42, and restricts the position of the arm 42 that is pulled upward by the wire 46.
[0013]
Here, in a normal state, the wire 46 in tension is freed in the event of a fire due to the action of a heat sensing means (not shown), the wire 46 is loosened, the arm 42 is rotated downward, and the weight bar 12 is moved from the recess 41 to the weight bar 12. The roll 1 falls off and rolls, the roll 1 rotates around the roll shaft 31, the fireproof sheet 11 spreads and hangs down around the roll core 13, and covers the window W. As a thermal sensing means (not shown), a hook that hooks the wire 46 may be simply released by a bimetal, a shape memory substance, a glass bulb, or a thermal fluctuating substance such as a heat-soluble substance. A method of releasing the hook electrically based on a signal from a flame sensor or the like may be used. In the system using the heat-sensitive variable object, no power source is required, but it is necessary to release the tension of the wire 46 by interlocking with the arrangement part of the heat-sensitive means, and it is necessary to pay attention to the collision of the object. In addition, the method using the signal of the fire detector requires a power supply, but there are advantages that multiple detectors can be arranged and can be easily connected to internal fires and external fires, and manual switches, etc. .
[0014]
Moreover, the roll instruction | indication part 3 removes the roll core 13 from the roll axis | shaft 31, and drops it, when the sheet | seat 11 which the fire brigade expanded for the fire fighting activity may be obstructive. That is, the roll shaft 31 that indicates the roll core 13 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, so that the arm 32 can rotate in the horizontal direction. Is formed. The rod 33 is formed with an arm stop 35 that restricts the rotation of the arm 32 in the horizontal front direction, and restricts the position of the arm 32.
[0015]
Here, the water discharge work using the window W in particular as a fire fighting activity of the fire brigade will be explained. When the water discharge J of the fire brigade which does not have a force in the horizontal direction in the normal state hits the upper side of the fireproof sheet 11, A force toward the rear side in the horizontal direction is applied to the roll shaft 31 via the roll core 13. With this force, the arm 32 is rotated in the horizontal depth direction, the roll core 13 is removed from the integrally rotating roll shaft 31 and dropped, and the spread fireproof sheet 11 is also dropped and the window W is opened. . Then, the water can be discharged from the window W into the house K. Further, for example, rescue work other than the water discharge work can be eliminated by the fire brigade as it approaches the window.
[0016]
The method of removing the roll core 13 from the roll shaft 31 and dropping it is not limited to the above-described method, and a roll 32 is provided on the arm 32 that can be rotated together with the roll shaft 31, and the roll core 13 is discharged by discharging water. You may make it come off. In that case, the fire brigade is easy to understand. Further, in the method of rotating the roll shaft 31 horizontally, it is conceivable that the sheet 11 falls due to an unexpected press from the outside. Therefore, when the roll shaft 31 feels a weight, a method of rotating downward may be used. As the weight, a container for receiving water discharge from the fire brigade is provided, and the weight for discharging water can be used. Moreover, you may utilize the water absorption of the sheet | seat 11 directly. However, in this method, it is necessary to improve the response of the roll shaft 31 to the weight.
[0017]
Next, a second embodiment of the present invention will be described. The roll-down sheet fixing bracket is the same as that of the first embodiment, and is the same as that of FIG. 1, FIG. 2, FIG. 3, FIG. Further, the roll 1h shown in FIG. 6 in the same manner as the first embodiment in the installation state of the roll-down sheet according to the second embodiment is a roll-up of the fireproof sheet 11h as in the first embodiment. The weight bar 12h is fixed to the end side of the fireproof sheet 11h. This fireproof sheet 11h has a size covering the target wall H, and the material is braided special heat-resistant fiber containing about 95% (specifically 94.1%) of silicon dioxide. It can endure a high temperature of 1000 ° C. or higher continuously, can temporarily withstand about 1600 ° C. or higher, and is basically a rectangular shape covering the wall H. And the hollow cylindrical roll core 13h is fixed to one side of this fireproof sheet 11h, and the weight bar 12h is fixed to the opposite side. A roll 1h is obtained by winding the fireproof sheet 11h around a roll core 13h.
[0018]
In this roll 1h, the roll shaft 31 of the roll instruction part 3 protruding from the fixing plate 21 of the fixing bracket 2 provided in the same symmetrical shape as in the first embodiment is connected to the roll core 13h of the roll 1h from the left and right. Threaded and locked. The left and right ends of the weight bar 12h are locked to the recess 41 of the weight indicating portion 4 that protrudes separately from the fixing plate 21 of the fixing bracket.
[0019]
And the weight instruction | indication part 4 removes the weight bar 12h from the hollow 41, and drops it at the time of a fire outbreak similarly to 1st Embodiment. That is, the recess 41 that points to the weight bar 12h is formed on the arm 42, and the arm 42 is connected to the rod 43 protruding from the fixed plate 21 via the rotary shaft 44 so that the arm 42 can be rotated in the vertical direction. Is formed. The rod 43 is formed with an arm stop 45 that restricts the upward rotation of the arm 42, and restricts the position of the arm 42 that is pulled upward by the wire 46.
[0020]
Here, in a normal state, the wire 46 in tension is freed in the event of a fire due to the action of a thermal means (not shown), the wire 46 is loosened, the arm 42 is rotated downward, and the weight bar 12h is moved from the recess 41 to the weight bar 12h. The roll 1h is dropped and rotated, the roll 1h rotates around the roll shaft 31, the fireproof sheet 11h spreads, hangs down around the roll core 13h, and covers the wall H. As the heat sensitive means (not shown), the same one as in the first embodiment is used.
[0021]
In addition, the roll instruction unit 3 may cause the sheet 11h spread for fire fighting by the fire brigade to get in the way, and in that case the roll core 13h is removed from the roll shaft 31 and dropped. That is, as in the first embodiment, the roll shaft 31 that indicates the roll core 13h is formed on the arm 32, and the arm 32 is connected to the rod 33 that protrudes from the fixed plate 21 via the rotary shaft 34. 32 is formed to be rotatable in the horizontal direction. The rod 33 is formed with an arm stop 35 that restricts the rotation of the arm 32 in the horizontal front direction, and restricts the position of the arm 32.
[0022]
Here, the water discharge work using the window Wh of the wall H will be described as a fire fighting activity of the fire brigade. When the water discharge of the fire brigade, which is not related to the horizontal force in the normal state, hits the upper side of the fireproof sheet 11h, the first Similarly to the embodiment, a force toward the rear side in the horizontal direction is applied to the roll shaft 31 via the roll core 13h due to the collision of water discharge. With this force, the arm 32 is rotated in the horizontal depth direction, the roll core 13h is removed from the integrally rotating roll shaft 31 and dropped, the spread fireproof sheet 11h is also dropped, and the window Wh on the wall H is opened. It becomes a state. Then, the water can be discharged from the window W into the house K. Further, for example, rescue work other than the water discharge work, the fire brigade can enter the house K by dropping the seat 11h by water discharge beforehand.
[0023]
As a method for removing the roll core 13h from the roll shaft 31 and dropping it, the same method as in the first embodiment can be used.
[0024]
As described above, according to the first aspect of the present invention, the arm 32 and the rod 33 provided on the upper side of the window W with the roll shaft 31 attached to the roll 1 on which the fireproof sheet 11 having a size covering the window W is wound. And a weight support portion 4 by an arm 42, a rod 43, and a wire 46 for locking the weight rod 12 provided on one side of the fireproof sheet 11 and dropping the weight rod 12 in the event of a fire. The support part 4 extends the refractory sheet 11 in the event of a fire to cover the window W , and the roll support part 3 is characterized by having means for dropping the roll 1 as necessary . The weight support section 4 is provided with fire detecting means such as a heat sensitive means (not shown) inside and outside the house K where the roll 1 is provided as necessary, and drops the weight bar 12 based on any fire detection. And has a means for. As a result, the roll support portion 3 responds to heat from the outside and prevents the spread of fire to the installed house K, and is adjacent to the installed house K in response to heat from the inside. Further, it is possible to prevent the spread of fire to the house, and the roll support unit 3 receives the water discharge pressure and drops the roll 1, so that the water discharge work and the rescue work can be performed from the window W.
[0025]
The second invention also includes a roll support portion 3 formed by an arm 32 and a rod 33 provided in a house with a roll shaft 31 attached to a roll 1h on which a fireproof sheet 11h is wound, and a weight provided on one side of the fireproof sheet 11h. It consists of an arm 42 for locking the rod 12h and dropping the weight rod 12h in the event of a fire, a rod 43 and a weight support portion 4 by the wire 46, and the weight support portion 4 spreads the fireproof sheet 11h in the event of a fire, Moreover, the roll support part 3 is characterized by having means for dropping the roll 1h as required, and the roll support part 3 has means for dropping the roll 1h in response to water discharge pressure or the like. is there. The fire fighting activities of the fire brigade often use the window Wh. As a result, when the water is discharged into the house K, the fire fighting activity from the window Wh is easy to perform.
[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.
FIG. 3 is a front view of FIG. 1;
4 is a top view of the upper half of FIG. 1. FIG.
FIG. 5 is a bottom view of FIG. 4;
FIG. 6 is a schematic diagram showing the installation state of FIG. 1;
[Explanation of symbols]
1, 1h Roll 11, 11h Fireproof sheet 12, 12h Weight bar 2 Fixing bracket 3 Roll support part 4 Weight support part H Wall K House W, Wh Window

Claims (3)

A roll support portion disposed on the upper side of the window with a roll shaft attached to a roll wound with a fireproof sheet of a size covering the window;
A weight support portion for locking a weight bar provided on one side of the fireproof sheet, and dropping the weight bar in the event of a fire,
The weight support part is configured to spread the fireproof sheet and cover the window in the event of a fire , and the roll support part includes means for dropping the roll as necessary . A roll support unit that is disposed in a house with a roll shaft attached to a roll wound up with a fireproof sheet;
A weight support portion for locking a weight bar provided on one side of the fireproof sheet, and dropping the weight bar in the event of a fire,
The said weight support part spreads the said fireproof sheet at the time of a fire, and the said roll support part has a means to drop a roll as needed, The fire prevention apparatus characterized by the above-mentioned. The fire prevention device according to claim 1 or 2 , wherein the roll support part has means for receiving a water discharge pressure and dropping the roll.

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