JPH0693776A - Opening/shutting device for doorway in partition - Google Patents

Abstract

PURPOSE:To secure a flowing route for air without provision of any separately structured air passage in a door or a bulkhead by furnishing an up/down split upper door and lower door at the doorway between adjoining compartments separated by a partition. CONSTITUTION:An attachment room 10 constituting a safety compartment is separated from a corridor 11 by a partition 12, which is equipped with a doorway 13 for passage between the two. The doorway 13 is provided with an up/down split upper door 14 and lower door 15. An air passage from the one 10 to the other 11 or vice versa is formed according to necessity by opening one of the upper and lower doors 14, 15. Thereby air flow can be generated without requiring provision of any separate air passage in either door or the partition 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entrance / exit opening / closing device for compartments, and more particularly to an entrance / exit opening / closing device for compartments capable of ensuring a flow of air from one compartment to the other compartment.

[0002]

2. Description of the Related Art In recent years, in a building, air is supplied to a safety compartment space such as an annex or a corridor by a fan to keep the safety compartment space pressurized, and the safety compartment space flows in one direction. There is known a pressurized smoke exhaust system which secures an air flow route to prevent smoke from entering when a fire occurs and at the same time enables smoke to be exhausted.

Conventionally, in such a pressurized smoke exhaust system, an air flow route from one chamber to the other chamber is secured between adjacent chambers forming a safety compartment space and adjacent chambers such as a corridor. As a method for this, as shown in FIG. 4, an air passage 4 such as a louver was provided in a wall 3 separating the adjacent annex 1 and the corridor 2.

In FIG. 4, 5 is an annex 1 and a corridor 2.
The door 5 is a door that opens and closes the doorway 6, and the door 5 may be provided with a louver for securing an air flow route.

[0005]

However, in the conventional method as described above, since an air passage such as a gallery must be provided in the wall portion of the space or the door, the degree of freedom in designing the wall or door is reduced. In addition to the damage, when the air passage is formed in the wall, there is a problem in that the arrangement of furniture arranged in the room is limited.

The present invention has been made in view of the above points, and an object thereof is to open and close a door provided at an entrance of a partition space such as an annex and a corridor. An object is to provide an entrance opening / closing device capable of ensuring a flow path.

[0007]

A compartment doorway opening / closing device according to the present invention is provided with an upper door and a lower door which are vertically divided and which can be opened and closed at an entrance between adjacent compartments. By opening one of the compartments, an air flow path from one compartment to the other compartment is formed.

[0008]

In the present invention, when the upper door or the lower door is opened, an air passage is formed from one compartment to the other compartment, and as a result, a separate door or wall of the compartment is formed. It is not necessary to provide an air passage for the structure.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the configuration of an entrance opening / closing device according to an embodiment of the present invention.

In FIG. 2, a partition 12 divides the annex 10 and the corridor 11 which form a safety compartment.
The partition wall 12 is formed with an entrance / exit 13 through which the annex 10 and the corridor 11 can pass.
An upper door 14 and a lower door 15 which are opened in two steps are attached so as to be opened and closed. In addition, as shown in FIG. 2, a protrusion 16 that engages with the lower edge of the upper door 14 is formed on the upper edge of the lower door 15, and when the upper door 14 is opened to the auxiliary room 10 side, The door 14 is engaged with the protrusion 16 so that the lower door 15 is integrally opened to the auxiliary chamber 10 side.

The upper door 14 and the lower door 15 are exhausted by a pressurized smoke exhaust system, and the upper door 14 is used when the smoke detector 17 provided on the ceiling at the place where the fire occurs detects smoke. The lower door 15 is provided with a known release mechanism (not shown) that operates, and the lower door 15 is a known release mechanism that operates when the heat sensor 18 provided on the wall of the corridor 11 detects a hot air flow or a fire. (Not shown).

In FIG. 1, reference numeral 19 is an air supply port provided on the ceiling of the annex 10 for supplying pressurized air, and the air supply port 19 supplies air through a duct (not shown). It is connected to a fan (not shown).

Next, the operation of the embodiment configured as described above will be described. As shown in FIG. 3A, the upper door 14 and the lower door 15 in the normal state are in a state of being opened to the auxiliary room 10 side.

When a fire occurs in such a state,
Known pressurized smoke evacuation systems are activated automatically or by means. When the pressurized smoke exhaust system is activated, an air supply fan (not shown) is activated and air is supplied from the air supply port 19 to the auxiliary chamber 10.
And the inside of the auxiliary chamber 10 is pressurized. At the same time, the air supplied to the antechamber 10 flows into the corridor 11 through the open doorway.

On the other hand, when smoke generated by a fire reaches near the door and this smoke is detected by the smoke detector 17, the release mechanism of the upper door 14 operates to release the opened state of the upper door 14. Therefore, the upper door 14 is closed as shown in FIG. This prevents smoke from entering the antechamber 10.

Thereafter, when a high-temperature airflow or a fire reaches near the door as the fire spreads, the heat sensor 18 senses this and operates the release mechanism of the lower door 15 to open the lower door 15. To cancel. Therefore, the lower door 1
5 is closed as shown in FIG. As a result, the auxiliary chamber 10 is divided to form a safety division space, and hot air or fire is prevented from entering the space.

In this embodiment as described above, the auxiliary chamber 1
The door of the doorway connecting 0 and the corridor 11 is composed of an upper door 14 and a lower door 15 which are vertically divided into two parts, and when smoke is detected when a fire occurs, the upper door 14 is closed and the lower door 15 is opened. Since it is possible to prevent smoke from entering the antechamber 10 by pressurizing air to the antechamber 10 and to exhaust smoke accompanying the flow of air, it is possible to keep air passages such as gully on the wall as in the past. It is not necessary to provide the above, and the pressurized smoke can be discharged using the door of the entrance and exit.

Further, since it is not necessary to provide an air passage such as a louver on the door or the partition, the degree of freedom in designing the door and the wall is improved, security inspection is facilitated, and the arrangement of furniture is restricted. Never.

In the above embodiment, the smoke detector 17 detects the smoke, and the release mechanism of the upper door 14 and the lower door 15 is operated to open the upper door 14 and the lower door 15. The lower door 15 may be closed by detecting a fire with a temperature fuse and operating this temperature fuse.

In the above embodiment, the case where the present invention is applied to the pressurized smoke exhaust system has been described, but the present invention is not limited to this. For example, it can be used for any between the compartments that generate the flow of air. Further, the upper door and the lower door may be opened and closed manually.

[0021]

As described above, according to the present invention, vertically divided upper and lower doors are provided at the entrances and exits between adjacent compartments, and one of the upper door and the lower door is opened. As a result, the air passage between the compartments can be formed. Therefore, it is possible to easily secure the air flow route by opening and closing the door without providing an air passage having a separate structure. Along with this, the degree of freedom in designing doors and walls is improved, and there is an effect that the air passage does not limit the arrangement of furniture in the compartment.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a doorway opening / closing device for a compartment according to the present invention.

FIG. 2 is a side view of a main part of a door in this embodiment.

FIG. 3 is an explanatory diagram showing an operating state of a door in this embodiment.

FIG. 4 is a perspective view showing a configuration of a door and an air passage used for conventional pressurized smoke exhaust.

[Explanation of symbols]

 10 Annex 11 Corridor 12 Partition 13 Doorway 14 Upper Door 15 Lower Door

Claims (1)

[Claims] 1. A vertically divided upper door and a lower door are provided at a doorway between adjacent compartments so as to be openable and closable, and one of the upper door and the lower door is opened to open the other compartment from the other compartment. An opening and closing device for opening and closing a compartment, which is characterized in that an air flow path is formed therein.