JPH071272U - Fire door - Google Patents

Abstract

(57) [Summary] [Purpose] By making it possible to visually check the situation on the other side from the area partitioned by fire doors without opening the child door, the evacuation time can be shortened and at the time of evacuation. Improve safety. [Structure] In a fire door 1 that is openably and closably attached to a corridor of a building to partition the interior of the building, a window of a proper size is provided in an emergency passage child door 9 that is openably and closably attached to the fire door 1. The portion 12 was opened, and a transparent or translucent window glass 14 having heat resistance was fitted into the window portion 12 so as to be installed in a killing manner.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a fire door in which the situation on the other side can be visually confirmed from one of the two areas partitioned by the fire door.

[0002]

[Prior art]

 Disaster prevention facilities in buildings include fire detectors embedded in the ceiling, sprinklers, fire alarms, fire extinguisher facilities, and fire doors to prevent the spread and spread of fire. Fire doors are mainly used for openings in internal compartments of buildings such as fire walls and fire compartments, and are used for Class A fire doors to prevent the spread of internal fires, and mainly for openings in the perimeter of buildings. There is a type B fire door designed to prevent the spread of fire from adjacent fires.

Such a fire door, for example, a class A fire door, is an iron frame with both sides covered with steel panels. For example, a single door opening along a corridor (opening) in a building. It is placed or opened in a double-faced manner facing each other across the corridor, and in normal times it is housed in the wall body and opens the corridor, which does not hinder passage of people, but in the event of a fire The corridor is closed to prevent the spread of internal fire.

[0004] In order to provide evacuation when the fire door is closed, a child door for emergency use, which is generally formed to a size that allows people to pass through, can be opened and closed. It is provided. Such child doors also have a fire protection structure with steel panels attached to the steel frame.

[0005]

[Problems to be solved by the device]

 However, in such a conventional fire door, if the interior of the building is partitioned by closing it when a fire occurs, it will be partitioned by the fire door unless the aforementioned child door is opened. I cannot grasp the situation in the opposite area. If the child door is opened when there is a large fire in the area opposite the fire door, the fire and smoke may be blown through the opening. There is a problem that it is necessary to gradually open while listening to the situation of the side, and it takes a long time to evacuate. In particular, for those who are not familiar with the planar structure of a building, it will take a longer time in addition to the need to determine the evacuation route.

[0006] Furthermore, since the fire door is housed in the wall during normal times and does not hinder the passage of people in any way, if the corridor that was used to pass through is closed suddenly in the event of a fire, the plane structure of the building Even a person who is familiar with the situation may have a greater sense of insecurity together with the fire alarm, and it may be difficult to make an accurate judgment, which may cause a secondary disaster.

This invention solves the above problems, and its purpose is to enable the situation of the opposite side to be visually confirmed from one of the areas separated by the fire door without opening the child door. By doing so, a fire door that can shorten the evacuation time and improve the safety during evacuation is provided.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention relates to a fire door that is openably and closably attached to an opening in a building to partition the interior of the building, and an emergency passage child door that is openably and closably attached to the fire door. In addition, a window portion of a suitable size is opened, and a transparent or semitransparent window glass having heat resistance is fitted into the window portion to be killed.

[0009]

[Action]

 With the above configuration, even if the fire door closed the opening inside the building when a fire broke out, the fire door was sandwiched through the window glass attached to the child door without opening the small door. You can directly visually check the situation in the opposite area.

[0010]

Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a fire door according to the present invention. The fire door 1 in the figure is arranged in a double-opening manner along the corridor of the building, and is framed in a rectangular shape along the side walls 2, ceiling 3 and floor 4 orthogonal to the longitudinal direction of the corridor. It is attached to the frame 5 so that it can be opened and closed.

The fire door 1 is composed of a pair of double-opening doors 1 a and 1 b rotatably hinged to a frame 5 via a plurality of built-in hinges 6. Both doors 1a and 1b are flush doors made of steel frame with a steel plate panel. A pulling handle 7 is provided at the center of the closing portion of the two, and the pulling handle 7 can be opened and closed. I am sorry.

Both doors 1a and 1b are normally opened as shown in FIG. 1, and are fitted into recesses 2a formed in both side walls 2 of the corridor to be retained on the same surface as the side walls 2 and both side walls 2 The continuity of the corridor is maintained without causing unevenness. Then, only when a fire occurs, the built-in hinge 6 rotates as shown in FIG. 2, and the door is urgently closed to close the corridor.

An opening 8 formed in a vertically long rectangular shape so that a person can pass through is opened in one of the doors 1a having the above-described structure, and an emergency passage child door 9 is opened and closed in this opening 8. It is arranged as possible. The child door 9 is a single-opening type flash door in which a steel panel is attached to a steel frame similarly to the fire door 1, and one side is provided in the opening 8 through a plurality of built-in hinges 10. It is hinged so as to be openable and closable, and provided with a pulling handle 11 for opening and closing operation on the other side.

Then, a rectangular window portion 12 having an appropriate size is opened at an appropriate position on the door surface (in this embodiment, the position of the human eye), and the window portion 12 has a low position. A heat-resistant transparent window glass 14 such as expanded tempered glass is fitted and attached in a kill-fitting manner, and the periphery thereof is fixed to the window portion 12 by a heat-resistant seal or the like. This window glass 14 may be semi-transparent as long as the opposite side of the fire door 1 is visible.

Therefore, as shown in FIG. 2, when the fire door 1 is closed, the condition of the other side area can be visually confirmed through the window portion 12 of the child door 9, thereby opening the small door 9. It will be possible to carry out accurate evacuation behavior and fire fighting activities.

Further, even when flame or high-temperature smoke is blown on the fire door 1, the window glass 14 provided on the child door 9 has heat resistance and high strength, and therefore is damaged by the flame or smoke blowing pressure. This will prevent the spread of fire and smoke to the opposite area.

Although the present invention is applied to a double-door fire door in the embodiments, the present invention is not limited to this, and can be applied to various types of fire doors, for example, a single-door fire door or a fire door. The present invention can also be applied to an emergency child door provided with a shutter on one side and a shutter guide on the other side, such as a parent-child fire door that also serves as an antitheft door.

Further, the size, position and number of the windows 12 (window glass 14) provided on the small door 9 are not limited to those in the above-mentioned embodiment, and they may be provided at the height of the waist of a person, It can be installed at both the height of the waist and the height of the waist. In this case, even if smoke is flowing on the opposite side of the fire door, the smoke drifts upward, so the situation can be visually checked.

[0019]

[Effect of device]

 In the fire door according to the present invention described in detail above, the window of an appropriate size is opened in the child door for emergency passage that is openably and closably attached to the fire door, and the window has a heat-resistant transparent material. In addition, since the translucent window glass is installed in a deadly manner, the situation of the area on the opposite side can be visually confirmed through the window glass, so that accurate evacuation behavior can be performed in a short time and safely. It is also suitable for fire prevention and rescue activities.

[Brief description of drawings]

FIG. 1 is an interior perspective view showing an open state of a fire door according to the present invention.

FIG. 2 is an interior perspective view showing a closed state of the fire door.

[Explanation of reference signs] 1 fire doors 1a, 1b door 2 wall 3 ceiling 4 floor 6 built-in hinge 8 opening 9 child door 10 built-in hinge 12 window 14 transparent window glass

Claims (1)

[Scope of utility model registration request] 1. A fire door that is openably and closably attached to an opening in a building to partition the interior of the building,
A window part of an appropriate size is opened in a child door for emergency passage that is openably and closably attached to the fire door, and a transparent or translucent window glass having heat resistance is fitted into the window part to be killed. Fire doors that are characterized.