JPH066853B2 - Opening / closing device for smoke exhaust window - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for opening and closing a smoke exhaust window installed on an upper part of a wall surface in order to discharge smoke filled indoors outdoors in the event of a fire.

Problems to be Solved by the Related Art and Invention Since the smoke exhaust window has its original purpose of being used in the event of a fire, even if it is driven by an electric motor, it should not become inoperable due to the heat of the fire. In addition, conventionally, an operation box provided with a manual operation means such as a handle was exposed and installed at the lower part of the wall surface that can be manually operated, and was connected to a smoke exhaust window installed on the upper part of the wall by a control cable. However, since the operation box is exposed at the bottom of the wall, it not only spoils the aesthetics and interferes with indoor use, but it also requires a long control cable because the operation box is separated from the smoke exhaust window. However, there is a drawback that a large electric motor must be used because the frictional resistance during operation is large and the operation force transmission efficiency is low.

Means for Solving the Problems As a means for solving such a problem, the smoke exhaust window opening / closing device of the present invention has a drive device concealed and installed in an upper part or a ceiling of a wall, and the drive device At least the electric motor of the apparatus is housed in a protective box having excellent heat insulation.

Advantageous Effects of the Invention With the above-described structure of the present invention, the electric motor driven drive device is housed in a protective box having excellent heat insulation properties, so that a particularly weak and weak electric motor of the drive device is protected from the heat of a fire and the temperature of the electric motor drive is reduced. Is suppressed, operation is secured for at least a certain time immediately after a fire, and smoke filled in the room can be discharged, and the drive unit can be installed near the smoke exhaust window. The installation is short, the frictional resistance is small, the operating force transmission efficiency is high, and a small electric motor can be used.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a projecting window in which a window plate 3 is hinged to the upper edge of a window frame 2 fitted to the upper part of the wall surface of a building, and a plurality of windows are connected in the lateral direction. At the lower edge of 2, there are fixed push-pull chains 5 that can be bent only on one side, and at the same time, a storage case 7 that supports a sprocket 6 that is engaged with the push-up chain 5 is fixed. The tip of the chain 5 is connected to the lower edge of each window plate 3, and a box 10 accommodating a gear 6 that rotates integrally with the sprocket 6 is fixed to the lower surface of each accommodation case 7, and adjacent boxes 10 are connected to each other. The conduits 11 are provided between the boxes 11, and the geared cables 12 slidably inserted in the conduits 11 are connected to the respective boxes 10.
The gears 8 are meshed with the gears 8 therein, and each gear 8 is rotated by the pushing and pulling motion of the geared cable 12, and each sprocket 6 is rotated together with it, so that each push-pull chain 5 is extended and retracted all at once. Each window board 3
1 is opened and closed at the same time. In FIG. 1, the conduit 11 connected to the rightmost box 10 is routed along the window frame 2 and penetrates the ceiling plate, and the protection box 17 installed in the ceiling is installed. It is connected to the drive unit 15 housed inside.

As shown in FIG. 2, the protective box 17 is formed by attaching a plaster board 18 having a predetermined thickness to each of the inner surfaces of a one-sided open box body formed of a steel plate 16. The base plate 20 of the drive unit 15 is attached to the bottom surface by a through screw 21, and a gear 22 similar to the gear 8 and a worm wheel 23 that rotates integrally with the gear 22 are supported near the left end of the base plate 20. Is a guide tube 24 connected to the end of the conduit 11 and arranged around the gear 22.
Further, the geared cable 12 is bent and meshed with each other, and the accommodation tube 29 having a predetermined length is connected to the other end of the guide tube 24, and the reversible motor 25 is obliquely fixed to the right side of the substrate 20. And a pinion 26 coupled to the output shaft of the worm shaft 27 supported on the substrate 20.
Is engaged with a gear 28 fixed to the worm shaft 27.
Worm gear 30 meshes with the worm wheel 23, the control device 31 is installed next to the reversible motor 25, the power cord 32 is connected to the commercial AC power source, and the opening of the guide box 17 is Similarly, the inside of the guide box 17 is shielded from the outside by being fixed by tightening the cover plate 33 screws to which the plaster board 18 is attached inside the steel plate 16. A decorative cover 35 is worn on the indoor side of the window frame 34 of the sliding window 39 provided below the projecting window 1, and a switch box 36 is embedded inside the cover 35. On the front of the window, push button 37 for window switch, push button 3 for window switch
8. The push button 40 of the stop switch is projected, and the open display lamp 41 and the closed display lamp 43 of the protruding window 1 are juxtaposed above them, and above the push button 40 of the remote control device. A receiver 45 for receiving a signal from an infrared ray emitted is provided, and these lead wire bundles 49 are passed along the window frame 2 through the inside of the cover 35 and the inside of the decorative frame 44 extended to the lower edge of the protruding window 1. It is wired and passes through the steel plate 16 and the gypsum board 18 of the protective box 17 and is connected to the terminal 46 of the control device 31 therein.

The switchgear of the present embodiment has the above-mentioned structure, and when the push button 37 of the fenestration switch is pushed, the reversible motor 25 is rotated in one direction by the output of the control device 31, and the pinion 26 and the gear 28 are rotated.
And the worm wheel 23 rotates through the worm gear 30 and the gear 22 integrated with the worm wheel 23 rotates,
The geared cable 12 slides in the conduit 11 in one direction,
As a result, the gear 8 in each box 10 fixed to the window frame 2 of each protruding window 1 rotates, and the push-pull chain 5 in each housing case 7 is fed out by the rotation of the sprocket 6 and each window plate 3 is rotated. Are simultaneously projected in the window opening direction, and when each window plate 3 is in the fully open position, the output from the control device 31 is stopped and the reversible motor 25 is stopped, so that each window plate 3 is held in the open position and in the open state. When the display lamp 41 of No. 3 lights up and the push button 38 of the window closing switch is pushed, the control device 3
The reversible motor 25 rotates in the opposite direction by the output of 1 and the geared cable 12 slides in the opposite direction, so that each push-pull chain 5 is drawn into each accommodation case 7 by the rotation of the sprocket 6. As a result, each window plate 3 swings in the window closing direction and the open display lamp 41 is turned off, and when each window plate 3 is in the window closing posture, the output from the control device is stopped and the reversible motor 25 is stopped. , Each window plate 3 is locked to the closed window state, and when the push buttons 37 and 38 of the window switch or the window switch are pushed and the push button 40 of the stop switch is pushed, the output from the control device 31 is output. Is stopped and the reversible motor 25 is stopped, so that the window plate 3 is held in an arbitrary window opening posture, and at this time, the display lamp 43 in the open state is turned on. Then, the push buttons 37, 38, 40 of these switches
Instead of directly operating the, the above operation can be performed from a remote position by transmitting a signal from the remote control device to the receiver 45.

Further, the drive device 15 is housed in the protection box 17,
Since the inside of the protection box 17 is insulated from the outside by the gypsum board 18, in the event of a fire, the drive unit 15
In particular, the reversible motor 25 and the control device 31, which are particularly vulnerable to heat, are protected from the heat of the fire, and are prevented from being inoperable due to the heat at least for a certain period of time after the fire occurs. In order to confirm the heat insulation performance of the protective box 17 of the present embodiment, the protective box 17 containing the drive unit 15 and closed with the lid plate 33 was put in a heating furnace and an actual inspection was performed. As a result of keeping the thickness of 18 at 9 mm and keeping the furnace temperature at 250 ° C. for 30 minutes, the surface temperatures of the reversible motor 25 and the control device 31 are maintained at about 90 ° C., and no abnormality occurs in either function. confirmed.

In the present embodiment, the case where the geared cable 12 is used as the control cable has been described as an example, but a normal cable is used instead of the geared cable 12, and the worm wheel 23 of the drive device 15 is provided with the gear 2.
It can also be applied to the case where a winding drum of a cable is connected instead of 2, and each window plate 3 is opened and closed by winding and unwinding the cable by this winding drum.

Further, as the remote control device for remote operation and the receiver 45 thereof, in addition to the infrared system of this embodiment,
A sound wave type or a radio wave type can be used.

[Brief description of drawings]

FIG. 1 is a perspective view showing the overall configuration of an embodiment of the present invention, and FIG. 2 is a partial sectional view. 1: Projection window 12: Geared cable 15: Drive device 17: Protective box 25: Reversible motor 36: Switch box 44: Cover

Claims (2)

[Claims] 1. An opening / closing device for a smoke exhaust window in which a smoke exhaust window installed on an upper part of a wall surface of a building and a drive device equipped with an electric motor installed at a remote position are connected by a control cable,
A smoke exhaust window opening / closing device, characterized in that the drive device is installed so as to be concealed in the upper part of the wall or in the ceiling, and at least the electric motor of the drive device is housed in a protective box having excellent heat insulating properties. 2. The opening / closing of the smoke exhaust window according to claim 1, wherein the control switch of the drive unit is arranged in a window frame of another window installed under the smoke exhaust window. apparatus