JPH024688Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a smoke-proof hanging wall.

Conventional smoke-proof hanging walls are constructed by inserting the upper end of a noncombustible plate such as plate glass into a space groove in the ceiling surface, and holding the lower end of the plate in a holder attached to a bolt suspended from the space groove. Generally, the noncombustible board is suspended from the ceiling surface. In addition, as a special method, the upper and lower edges of the glass fiber cloth are sandwiched between thin metal plates, as disclosed in Utility Model Publication No. 52-54239, and the lower edge plate has a T-shaped main cross section and is normally open to the ceiling. The construction of a smoke-proof hanging wall in which the above-mentioned glass fiber cloth is rolled up into the ceiling through the ceiling, the opening is closed with the lower edge plate, and the above-mentioned glass fiber cloth is suspended in the event of a fire, and
No. 56-2984, a hanging wall made of plate glass is provided with a holder at the lower end to support the plate glass, and a lamp is provided on the bottom or side of the holder to indicate interior decoration or the location of the hanging wall. Smoke-proof hanging walls are known.

However, in the conventional smoke-proof hanging wall, the lower end of both the cross-section of the receiver and the end of the noncombustible plate are shaped, so as will be described later, smoke that exceeds the smoke-proof hanging wall will not reach the floor. Until now, the behavior of smoke beyond the hanging wall has not been considered at all when designing smoke-proof hanging walls.

In consideration of the above-mentioned drawbacks and the behavior of smoke, the present invention installs a frame having arc-shaped and wide-waning sloped sides on both sides of the lower edge of any smoke-proof hanging wall such as plate glass, cement board, ceramic board, etc. The air outlet at the bottom of the frame suppresses the flow of smoke beyond the hanging wall, and the air curtain increases the effective length of the hanging wall to extend the smoke blocking time, resulting in higher safety. The smoke-proof hanging wall is designed to give the smoke-proof hanging wall a unique effect.

Hereinafter, specific examples of the present invention will be explained in detail with reference to the drawings.

Reference numeral 1 denotes a plate glass, for example, which constitutes the smoke-proof hanging wall, and is usually a plate glass with a mesh or wires, or a laminated glass plate.

The upper end of the glass plate 1 is inserted into a bar 6 installed in a space groove in the ceiling 5, and the lower end thereof is held by the frame 2. The frame 2 has a groove in the upper part into which the plate glass 1 is inserted, and both side surfaces 7 are wide arcuate surfaces,
Further, a plurality of holes 8 through which the hanging bolts 3 are inserted are provided at predetermined intervals.

A plurality of the hanging bolts 3 are suspended from the bar 6 at predetermined intervals, and screws 16 are cut into the tips of the bolts 3, either on the inside or outside, so that they can be screwed onto the nuts 4. With this configuration, the frame 2 is held at a constant level, and the plate glass 1 is configured as a continuous wall surface. The hanging bolt 3 is connected to the air communication hole 1.
4, the nut 4 is also provided with a hole 15 that communicates with the communication hole 14, and the tip of the hanging bolt 3 is connected to a compressed air source (not shown) such as a blower. The compressed air is supplied to the left and right skirt members 13 and 1 through the communication hole 14 and the hole 15.
The liquid is ejected from the slit 12 formed from 3'.
The slit 12 is preferably provided continuously in the longitudinal direction of the frame 2, but instead of the slit 12, a large number of holes may be provided consecutively.

The frame 2, hanging bolts 3, and nuts 4 may be made of noncombustible materials such as iron or aluminum, and both side surfaces 7 of the frame 2 are
The arcuate shape shown in Figures 1 to 3 is more effective, and the wider the width of the lower part of the frame 2, the more preferable it is.

Furthermore, the air ejected from the slit 12 is
A fire may be detected by a fire alarm or the like, and the detection signal may be used to activate the compressed air generation source to blow out the air, or air may be constantly ejected and used as an aid to air conditioning. It is also possible to mix mist to make the air itself heavier and increase the smoke blocking effect.

In the present invention, a frame 2 having a wide sloped side surface is attached to both sides of the lower edge of the plate glass 1 that serves as a hanging wall, and an air outlet is provided at the bottom of the frame, so compared to a conventional smoke-proof hanging wall, It has a great effect of keeping the smoke well on the windward side, preventing it from going to the leeward side, and directing the smoke to the ceiling.

The reason for this is that because the above-mentioned frame was attached to the plate glass that forms the hanging wall, the frame generates an upward airflow on the windward side, which flows backwards and collides with the airflow near the ceiling surface, causing the airflow near the glass plate on the windward side to blow up. This is thought to be due to the fact that on the downwind side, the presence of the frame expands the negative pressure area behind the glass plate, attracting smoke upward.

As described above, the present invention effectively blocks smoke by providing a frame with arcuate, wide-sloping side surfaces on both sides of the lower edge of the hanging wall, and in addition, air is blown out through the frame. If smoke flows into the next room, it will not drift to the floor and collect on the ceiling, making evacuation easier in the event of a fire.
Highly safe, the frame can be colored as needed,
Alternatively, it is effective in that it can be decorated with lighting and other means to give it a sense of beauty.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a specific example of the present invention;
The figure is a partial perspective view, and FIG. 3 is a sectional view showing the hanging bolt portion. 1... plate glass, 2... frame, 5... ceiling, 12... slit.

Claims (1)

[Scope of utility model registration request] A smoke-proof hanging wall, characterized in that a frame having an arc-shaped, wide-sloping side surface is attached to both sides of the lower edge of a noncombustible board hanging from the ceiling, and an air outlet is provided at the lower part of the frame.