KR0138544Y1 - Fire Door Hinges for Fire Shutters - Google Patents

Abstract

The present invention relates to the improvement of the hinge suitable for the emergency door of the fire shutter, and when the emergency door of the emergency exit formed on the fire shutter is closed to close the door of the hinged side when the fire occurs, the flame and soot fire It relates to an emergency door hinge of a fire door that can be restrained from leaking out as much as possible. The present invention, in particular, in the hinge used to install the emergency door taken from the emergency entrance door of the fire door shutter in a hinged manner, provided with a fixed hinge member (2a) and a movable hinge member (2b), on the movable hinge member (2b) When the emergency door 40 is closed, there is a feature attached to the smoke shield plate 5 to prevent the door gap (S).

Description

Fire Door Hinges for Fire Shutters

The present invention relates to the improvement of the hinge suitable for the emergency door of the fire shutter, and when the emergency door of the emergency exit formed on the fire shutter is closed to close the door of the hinged side when the fire occurs, the flame and soot fire It relates to an emergency door hinge of a fire door that can be restrained from leaking out as much as possible.

In case of fire inside the building, there are emergency exits in the part of the fire shutters, and the emergency doors are hinged at the emergency exits. A fire shutter that can be opened with a fire has been proposed. Since the hinge of the fire prevention shutter is attached to the inside of the fire shutter, the appearance is also neat and it is common to secure safety from external invaders.

When installing the emergency door on the fire shutter as described above, when the fire occurs indoors, the flame and soot must not be leaked into the gap between the fire shutter and the emergency door, and the protection measures must be thoroughly prevented from entering the outside air. Finding a fire can help prevent premature firefighting and the spread of flames to other places, and can also minimize the casualties of residents near fire sites.

In order to do this, it is necessary to install the fire door shutter so that even the door gap, especially the door on the hinged side, is left behind.

By the way, in the fire door shutter having such an emergency door, the edge of the emergency door of the emergency exit is flat except for the side where the hinge is attached, so that the door is easy to remove the door gap, but the edge where the hinge is installed is not easy to remove the door gap. I left it. In this case, if a fire occurs indoors, flames and soot may leak through the door, and the flame may be easily transferred to another place, and external air may flow in to fan the fire.

Therefore, an object of the present invention is to provide an emergency door hinge of a fire door shutter that can effectively prevent the door gap of the hinge hinge side while the emergency door is closed.

In order to achieve the above object, the present invention has a hinge used for installing the emergency door taken from the emergency access door of the fire door shutter in a hinged manner, provided with a fixed hinge member and a movable hinge member, the emergency door on the movable hinge member It features a shielding plate to prevent the door gap when closed.

1 is a perspective view of an emergency door hinge of a fire door shutter having a smoke shield plate according to the present invention.

Figure 2 is a partial extract of the fire shutter with a hinge of the present invention.

3 is an enlarged cross-sectional view taken along the line A-A of FIG.

Figure 4 is a partial cross-sectional view showing the installation state of the hinge according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1 hinge 2a fixed hinge member

2b: movable hinge member 3,3 ': hinge shaft

4: relay member 5: shielding plate

21: cylinder 22: access rod

23: coil spring 30: fireproof shutter body

40: emergency door

Hereinafter, with reference to the accompanying drawings created on the basis of a preferred embodiment will be described in detail.

1 is a perspective view of an emergency door hinge of a fire door shutter according to the present invention, Figure 2 is a partial extract of the fire door shutter showing the state of use of the hinge.

In this figure, the hinge 1 forms a fixed hinge member 2a and a movable hinge member 2b. Here, the relay member 4 may be interposed between these hinge members 2a and 2b. The relay member 4 has a connecting portion on both sides, and the fixed hinge member 2a and the relay member 4, the relay member 4 and the movable hinge member 2b are interfitted at the opposite ends and each connecting portion The hinge shafts 3 and 3 'are connected to each other.

A smoke shield plate 5 is attached to the movable hinge member 2b. The horizontal side of the smoke shield plate 5 has a sufficient width W so as to cover the door gap S between the fire door shutter body 30 and the emergency door 40, and at the same time, the hinge 1 occupies and remains. The height h of the shutter body 30 and the emergency door 40 substantially occupies each of the flat surfaces a and a '.

In the conventional fire shutter shutter body 30 assembled with a plate-shaped shutter member, the fire shutter shutter body 30 has a portion of a lattice as large as an emergency exit and floats an emergency exit, and the shutter member extracted from the seat is assembled. It becomes an emergency door 40.

While the shutter members of the fire shutter body 30 and the emergency door 40 coincide with each other in the transverse direction, below the connection parts 30a and 40a between the fire door shutter body 30 and the upper and lower shutter members of the emergency door 40. The hinge 1 is brought into close contact and attached by welding or the like. Specifically, the fixed hinge member 2a is attached to the fire door shutter body 30 and the movable hinge member 2b is attached to the emergency door 40. At this time, the relay member 4 is in a non-fixed state so as to be stretchable in the transverse direction from the fixed hinge member 2a, and the center of the first hinge shaft 3 connecting the movable hinge member 2b and the relay member 4 to each other. Is located on the door gap S, which is also a boundary between the fire door shutter body 30 and the emergency door 40.

When closing the emergency door 40, the margin width (W) portion of the smoke shield plate (5) over the door gap (S) to cover up to a part of the fire shutter shutter body (30). In the case of a fire occurring indoors due to the action of removing the doors of the smoke shield plate 5, flames and soot do not leak out of the emergency exit. Therefore, it can make a decisive contribution to minimizing fire suppression, property damage and casualties.

3 is an enlarged cross section of the hinge 1, and the fixed hinge member 2a is composed of a cylinder 21 and an access rod 22, and the coil spring 23 is mounted behind the access rod 22. The emergency door 40 opened by itself is configured to close by itself, and FIG. 4 shows a modified embodiment in which the movable hinge member 2b also uses the automatic closing structure of the fixed hinge member 2a. As the hinge 1 has an automatic closing function as described above, a person escapes and the emergency door 40 is closed at the same time to prevent the spread of flame or the outflow of soot.

The smoke shield plate 5 is bound to the movable hinge member 2b and the movable hinge member 2b is bound to the emergency door 40, so that the smoke shield plate 5 eventually fuses with the emergency door 40. Will move along (40). Specifically, the emergency door 40 is pivoted about the first hinge axis 3 until it is opened at a right angle. Then, since the opening angle of the emergency door 40 exceeds the right angle, the access rod 22 of the relay member 4 and the fixed hinge member 2a is drawn out by the force that the emergency door 40 opens after the right angle. Since the position of the one hinge shaft 3 moves toward the emergency exit from the door gap S, the emergency door 40 can be opened at an obtuse angle. When the opened emergency door 40 is closed, the smoke shield plate 5 moves in the opposite direction as when the door is opened to cover the door gap S.

In summary, the emergency door hinge of the fire door shutter of the present invention, which is provided with a smoke-retardant plate on the movable hinge member, can close the door side of the hinged door when the emergency door is closed. It is very effective in preventing the penetration of outside air. Therefore, applying this hinge to an emergency door for a fire shutter will have the effect of preventing the fire from spreading to other places adjacent to the fire site or causing fire extinguishing due to flame and soot, or preventing fire from developing. can see.

Claims (2)

In the hinge used to install the emergency door taken from the emergency entrance door of the fire shutter by the hinge method, it is provided with a fixed hinge member (2a) and a movable hinge member (2b), the emergency door (40) on the movable hinge member (2b) An emergency door hinge of a fire door shutter characterized by attaching a smoke shield plate 5 that prevents the door gap S from being closed. According to claim 1, wherein the hinge portion (2a) is composed of a cylinder 21 and the entrance rod 22, the entrance rod 22 is equipped with a coil spring 23 on the side of the emergency, the emergency door is automatically The emergency door hinge of the fire shutter characterized by being closed.