JPH10192431A - Inspection box for fire door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the ignition of the gas by the heat of fire, by forming a degassing hole on an upper part of an inspection box, at a position which can not be seen from the external, for discharging the gas from the hole even through an overhand door is heated by the fire, and the gas is generated and flown into the inspection box. SOLUTION: A degassing hole 11a which is penetrated through in a vertical direction, is formed on an upper part of an inspection panel 8, a degassing hole 11b is also formed on a rear face, and the gas is discharged from these holes 11a, 11b. These degassing holes 11a, 11b are formed on an upper part of an inspection box so that they can not be seen from the external, and the gas can be easily flown out, and the gas filled inside of the inspection box 'is flown out from the holes 11a, 11b. The gas is discharged from the holes 11a, 11b to the external, even when an overhang door 2 is heated by the heat of the fire, and the adhesives used for mounting a surface material, the coating material on the surface material, a core inside of the overhang door 2, or the like are burned, and the gas is generated, risen and filled in the inspection box 1 at the upper part of the overhang door 2, thereby a room can be prevented from burn down by the spreading fire caused by the ignition of the gas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hanging door in which when a hanging door is attached to a frontage provided in a part of a partition, a gas filled in a check box of the hanging door is not ignited at the time of a fire and a flame is not generated. It relates to an inspection box.

[0002]

2. Description of the Related Art FIG. 3 shows a hanging door device having a general fire prevention function without a door pocket, which is provided with a hanging door (b) on one side of a frontage (a). There is a door stop (c) that stops when hit by (b). This suspension door (b) is suspended on the rail (d) along the frontage, and for this purpose, a suspension wheel (e) is attached to the upper end of the suspension door, and a guide provided on the floor surface The lower end of the suspension door is guided by rollers (f).

[0003] By the way, the suspension door device constructed as described above has a structure in which no gap is left between the suspension door (b) and the partition panel (g). To prevent the invasion of fire and to prevent the next room from spreading fire. The rail (d) and the hanging vehicle (e) running on the rail (d), and the self-closing device and the braking device (not shown) are covered with an inspection box (g). An inspection panel (h) is attached to the front of the inspection box (g), and the inside of the box can be viewed by opening the inspection panel (h).

If a fire occurs and the hanging door (b) is exposed to high temperatures, gas is generated from the hanging door (b) and flows into the inspection box (g). And inspection box
The interior of (g) is filled with gas, and eventually ignites, losing its function as a fire door.

[0005]

As described above, the conventional hanging door apparatus has the above-mentioned problems. The problem to be solved by the present invention is this problem, and provides an inspection box for a fire door in which the inspection box is filled with gas so as not to catch fire.

[0006]

The inspection box provided on the upper part of the fire door of the present invention has a hole for venting the gas so as not to be filled with gas. Although the position of this hole is not particularly limited, it must be a position where gas can easily escape and cannot be seen from the outside. Generally, the hole is provided above the inspection cover so that the gas escapes from the hole. That is, the gas in the inspection box is prevented from igniting by leaking the gas to the outside, and the gas is prevented from being emitted from the gap between the panel and the flame. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0007]

FIG. 1 shows an inspection box in a fire door according to the present invention. There are various forms of the inspection box 1 and the case shown in the figure is only one specific example. However, basically, the upper rail 3, the hanger 4, and the hanger 5, which hang the hanger 2 and run. And so on so as not to be exposed outside. Here, even if the opening and closing method of the hanging door 2 is a manual type,
It may be semi-automatic or fully automatic.

[0008] The hanging door 2 is mounted on a frontage opening to a part of the partitioning device. The inspection box 1 is attached via a connecting member 9 to an upper rail 7 of a frame fitted in the frontage. Have been. An inspection panel 8 is attached to the front of the inspection box 1.
The inspection box 1 can be removed by loosening it, and functions as an opening / closing lid for the inspection box 1.

By the way, a gas vent hole 11a penetrating vertically is formed in the upper part of the inspection panel 8, and a gas vent hole 11b is also provided on the back surface of the inspection box 1; Gas is exhausted. Here, the size, shape, and number of the holes 11 are not limited, but these holes 11 are provided on the upper part of the inspection box 1 so that they cannot be seen from the outside and the gas can easily flow out. Gas can flow out of the hole 11. For example, when a large space is partitioned by the partition shown in FIG. 1 and a fire occurs from a room on the right side of the partition, a structure in which fire does not leak from the gap between the hanging door and the panel provided at the opening of the partition. Has become.

The hanging door 2 is heated by the heat of the fire, and the adhesive and the paint applied to the surface material, the inner core of the hanging door 2 and the like are burned to generate gas. . This gas rises and accumulates in the inspection box 1 above the suspension door. However, the gas flows out of the hole 11 to the outside, and the gas does not catch fire and spread the fire on the left room. In addition, the filled gas does not blow out from the gap between the panel and generate flame.

FIG. 2 shows another embodiment of the present invention, in which a hanging door 12 is mounted between both panels provided side by side. When the hanging door 12 is opened, both panel spaces become door pockets, and an inspection box 13 is also provided above the hanging door. The inspection box 13 is provided with inspection panels 14a and 14b on both sides thereof.
3 is the front cover.

The inspection box 13 also has the hole 1
5 and 15 are provided, and the gas filling the inspection box 13 can be discharged. A recess 17 is provided between the upper rail 16 of the frame fitted in the frontage and the inspection panels 14a and 14b.
Are formed, and the holes 15, 15 communicate with the recess 17. This hole 15 is also located at the upper part of the inspection box 13 and is in a position where it cannot be seen from the outside, and at a position where the filled gas easily flows out of the inspection box 13.

The form of the inspection box shown in FIGS. 1 and 2 is a specific example, and various structures can be adopted depending on the type of the partition and the form of the hanging door. As described above, the inspection box for a hanging door according to the present invention is provided with a gas vent hole at an upper portion thereof, and the following effects can be obtained.

[0014]

According to the present invention, since the inspection box of the fire door according to the present invention is provided with a hole at an upper part thereof, a fire is generated by heating the hanging door due to a fire, and this gas rises and flows into the inspection box. However, the gas flows out of the hole and does not fill the inspection box. Accordingly, the gas does not ignite due to the heat of the fire, and the filled gas does not erupt from the gap between the partition panel and generate flame.

[Brief description of the drawings]

FIG. 1 is an embodiment showing an inspection box structure of a fire door according to the present invention.

FIG. 2 shows another embodiment of the inspection box structure of the fire door of the present invention.

FIG. 3 is a general fireproof type hanging door device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inspection box 2 Hanging door 3 Upper rail 4 Hanger 5 Hanger 6 Panel 7 Upper rail 8 Inspection panel 9 Connecting material 10 Set screw 11 Hole 12 Hanging door 13 Inspection box 14 Inspection panel 15 Hole 16 Upper rail 17 Recess

Claims (2)

[Claims] 1. A fire door attached to an entrance of a partition, the inspection box being provided on an upper part of the fire door and covering an upper rail for suspending the fire door, a suspension vehicle, a braking device, and the like. An inspection box for a fire door, wherein a hole for degassing is formed at a position above the inspection box that is not visible from the outside. 2. An inspection box attached to an entrance of a partition, the inspection box being provided above the fire door and covering an upper rail for suspending the fire door, a suspension vehicle, a braking device, and the like. An inspection box for fire doors, characterized in that a gas vent hole is formed in a position that cannot be seen from the outside, at an upper portion of an inspection panel that is openably and closably attached to the front of the inspection box.