JPH11319133A - Safety structure for fireproof shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure safety and to provide a fire prevention means at a gap between a fireproof shutter terminal part and a closing terminal part by providing a stopper to maintain the above gap not only in the case of emergency (fire occurrence) but also when the fireproof shutter falls because of any malfunction. SOLUTION: This fireproof shutter 1 is closed by sensing temperature or smoke in the case of emergency, and is provided with a stopper 2 for stopping the fall of the fireproof shutter in the middle in order to keep a fixed gap from a closing terminal part to fall/close. And a fire resistant skirt 3 for covering the gap between a fireproof shutter top end part 1 and the closing terminal part is mounted on this fireproof shutter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a safety structure for a fire shutter.

[0002]

2. Description of the Related Art Conventionally, fire prevention shutters are provided in openings such as passageways of buildings, and when a fire occurs, the shutters are automatically lowered by detecting temperature or smoke to prevent the spread of fire. This is a device aimed at minimizing the damage caused by a fire by shutting off combustibles, and is a very convenient device if it functions reliably.

[0003] However, in recent years, when the sensing device reacts abnormally, the fireproof shutter is lowered due to malfunction, and an unexpected accident has occurred. Particularly, in a school or the like, the life of a student is lost. The consequences are disastrous.

[0004]

As described above, according to the present invention, when the fireproof shutter is lowered due to malfunction, not only in an emergency (when a fire occurs), but also when the fireproof shutter end and the closed end are closed. Providing stopper means to keep a gap between them, ensuring safety,
The gap portion is provided with a fire prevention means having a fire prevention performance at the time of fire that is sufficient compared to that of the conventional apparatus or higher than that of the conventional apparatus.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a conventional method in which the fire prevention shutter is lowered by the sensing function.
Even if it operates normally, even if it malfunctions, even if it malfunctions, the fire prevention shutter is prevented from completely descending to the closed end by the stopper means, and there is always a gap between the front end of the fire shutter and the closed end. An object of the present invention is to develop a safety structure of a fireproof shutter that attempts to prevent an accident by maintaining the structure.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described in detail with reference to the drawings. In an emergency, a fireproof shutter (1) which closes upon sensing temperature, smoke, etc., is lowered. A stopper means (2) for stopping the descent of the fire shutter (1) halfway is provided in order to maintain a certain gap from the closed end (X) to be closed, and the fire shutter (1) is provided with: The tip of the fireproof shutter (1
a) and a safety structure for a fireproof shutter characterized by mounting a fire-resistant skirt (3) covering a gap (Y) between the closed end (X).

In the case of the existing fire shutter (1), the stopper means (2) is a metal piece that fills and closes the middle of the groove (Z) in which both ends of the fire shutter are guided. The fireproof shutter is
If it is configured so that it does not descend beyond the place where the metal piece is attached, or if it is a new fireproof shutter,
Groove (Z) where both ends of fire prevention shutter (1) are guided
However, the rod may be closed halfway, or may be a groove (Z) with a rod (rod) attached or clamped from the closed end (X) upward. In short, there is no particular limitation as long as the fireproof shutter (1) is stopped halfway and does not descend any more and maintains a gap.

[0008] Specifically, the gap portion (Y) only needs to be about 50 cm. Even if the fireproof shutter (1) is operated by mistake, the gap can be escaped by using this gap portion, , If you fall under the malfunctioning fire shutter,
Since the gap portion (Y) between the front end portion (1a) of the fire prevention shutter and the closed end portion (X) is always ensured, it is safe without being injured or injured by being pinched.

Furthermore, the fire-resistant skirt (3) may be a single piece, and a plurality of slits (3a) are formed in the longitudinal direction at least near the closed end (X) to operate the skirt. In some cases, the slits may be configured so that they can easily pass through, and the slits branched into a plurality of pieces may partially overlap each other so that the fire prevention function is not weakened.

[0010]

According to the present invention, the fireproof shutter is
Since the guide groove is provided with stopper means, it stops with a certain gap from the lower part, so that during normal operation,
Even if a malfunction occurs, by maintaining this gap,
Accidents such as injury and pinching in some cases are eliminated, and a fire-resistant skirt is provided in the gap, so it is possible to escape through the skirt, In the event of a fire, it is possible to prevent the spread of fire, and it has an extremely beneficial effect.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway sectional view showing one embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fire shutter 1a fire shutter tip 2 stopper means 3 fireproof skirt 3a slit X closed end Y gap Z groove

Claims (1)

[Claims] 1. A fire shutter that closes upon sensing temperature, smoke, etc. in an emergency, wherein the fire shutter
In order to maintain a certain gap from the closed end, the stopper means for stopping the descent of the fire shutter in the middle is provided, and the fire shutter is provided between the front end of the fire shutter and the closed end. A safety structure for fireproof shutters, which is equipped with a fire-resistant skirt that covers the gap between the two.