JPH06280461A - Winding structure for ceiling housing type smoke prevention drop curtain - Google Patents

Abstract

PURPOSE:To make it possible to mount a ceiling housing type smoke prevention drop curtain to even such a part where a vertical ceiling housing space is small, and what is more, prevent the drop curtain from being crumpled. CONSTITUTION:A crumple elimination roller 7 is installed to the upper art of a guide rail housing part 6a which houses a guide rail 5. A winding shaft 3 of a drop curtain 1 is installed to a space S, which is shaped in a row in the horizontal direction from the vertical direction on the side of the guide rail housing part 6a. The drop curtain 1 is wound around the winding shaft 3 after it is converted into the horizontal direction from the vertical direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding structure for a ceiling-storing smoke-proof hanging curtain which is built on the ceiling of a building.

[0002]

2. Description of the Related Art Today, in buildings containing offices, department stores, hospitals, etc., there is a room with a large area or a long corridor. In case of a fire, the Fire Defense Law requires the installation of smoke proof curtains (smoke proof screens) to prevent the smoke from spreading widely through the ceiling. In such a smoke-proof hanging curtain, in normal times, the hanging curtain is wound around the winding shaft and stored in the ceiling, and when the fire is detected, the winding shaft is rotated to move the hanging curtain from the ceiling surface. There is a ceiling storage type that hangs down.

In such a ceiling-storing type smoke-proof hanging curtain, the guide rail is also housed in the ceiling, and therefore, in the conventional one, as shown in FIG. A guide rail storage portion 6a is formed immediately above 6 so that the guide rail 5 can be stored in a lateral view.
Further, the winding shaft 3 around which the hanging curtain 1 is wound is incorporated, and the hanging curtain 1 is hung along with the guide rail 5 as the winding shaft 3 rotates. However, this one has a guide rail storage portion 6a in the ceiling.
A space is needed to secure the upper and lower parts of the take-up shaft 3 and the built-in part of the take-up shaft 3. However, when building a building, there is a tendency to suppress the floor height and increase the number of floors, and at the same time, to save wiring space and duct space. It is necessary to secure the space, and it is difficult to secure a sufficient space above and below the ceiling.

Further, the smoke proof hanging curtain may have a hanging length not exceeding 1 meter, but the width in the left-right direction is long, and in some cases, it may be longer than 5 meters. By the way, as described above, the smoke-proof hanging curtain of the ceiling storage type is not fixed because the guide rails are also stored in the ceiling, and as a result, the curtain is instable and easily slipped in the left-right direction. If it is wound around the winding shaft in this misaligned state, it will be wound with the wrinkle on the banner. Then, when the curtain that was wound in such a wrinkled state was unwound, the wrinkle remained as a habit and remained,
The hanging curtain does not fall to the initial position, resulting in inferior smoke proofing. Therefore, there is a problem in that the hanging length must be set in advance in anticipation of this, which is not preferable.

[0005]

DISCLOSURE OF THE INVENTION The present invention was devised with the object of providing a winding structure for a ceiling storage type smoke proof curtain which can eliminate these drawbacks in view of the above circumstances. The guide is stored in the rail storage part formed in the ceiling part from the guide position in which the base end part is swingably supported and the tip end is oriented vertically and hangs down to the storage position in which the tip end part is laid down in the horizontal direction. A rail, a wrinkle removing roller that is disposed above the rail accommodating portion and that changes the direction of the hanging curtain from the vertical direction to a wrinkle of the hanging curtain, and is substantially parallel to the rail accommodating portion. And a drive shaft for rotating the winding shaft, the winding shaft for winding the laterally-converted hanging curtain, and the driving means for rotating the winding shaft. .

According to the present invention, the upper and lower spaces for accommodating the ceiling are small, and moreover, the present invention makes it possible to surely wind the product without wrinkling.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a smoke-proof hanging curtain which is hung from a ceiling portion of a large room, and the hanging curtain 1 is wound around a winding shaft 3 which is mounted above a ceiling 2 (behind the ceiling). In addition, it is unwound by driving the opening / closing device 4 based on the sensing operation of an abnormality detector such as a smoke detector or a fire detector (not shown) and hangs down from the ceiling 2. Is also the same as before. Reference numeral 5 denotes a guide rail of the banner 1. The guide rail 5 has a guide rail storage portion 6 immediately above the magsa portion 6 whose base end portion is formed on the ceiling 2.
From the stored posture in which it is pivotally supported by a and swings down in the lateral direction, the leading end side gradually swings downward in connection with the unwinding of the hanging curtain 1. This configuration is, for example,
Since those already publicly known in Japanese Patent No. 14202, Japanese Utility Model Publication No. 3-25808, etc. are adopted, detailed description thereof will be omitted.

Denoted at 7 is a wrinkle removing roller which is disposed above the guide rail storage portion 6a and which changes the direction of the hanging curtain 1 from the vertical direction to the wrinkle of the hanging curtain 1. On the side of the take-up roller 7, the take-up shaft 3 is mounted in a space S that is substantially parallel to the guide rail housing 6a. Reference numeral 8 is a supporting roller scattered at appropriate intervals to support the winding shaft 3 so as to prevent the winding shaft 3 from bending downward by its own weight, and 9 is a winding load of the hanging curtain 1 on the winding shaft 3. Therefore, pressing rollers 10 which are scattered at appropriate intervals so as to prevent them from bending in the horizontal direction are seat plates attached to the lowermost end portion of the hanging curtain 1.

In the embodiment of the present invention configured as described above, in the event of an emergency such as a fire, the curtain 1 is unwound and hangs down from the ceiling 2, thereby forming a smoke-proof compartment to rapidly propagate smoke. Although (diffusion) can be effectively avoided, since the hanging curtain 1 is wound around the winding shaft 3 while being wrinkled by the wrinkling roller 7, it is wound in a wrinkled state. You can certainly avoid that.

That is, the wrinkle removing roller 7 is arranged above the guide rail storage portion 6a, and the winding shaft 3 is arranged in parallel with the space S located on the side of the guide rail storage portion 6a. Cage, and the hanging banner 1
Is wound around the wrinkle-rolling roller 7 so that the direction is changed from the vertical direction to the horizontal direction, so that it is effectively wrinkled, and is then wound around the winding shaft 3. As a result, the flap 1 is wrinkled. It is possible to prevent the film from being wound up in a twisted state, and it is possible to prevent the drooping operation from being impaired in an emergency and failing to exhibit the desired smoke prevention performance. Also, with this one, the banner 1
Has a surface contact with the wrinkle removing roller 7 in a hanging state in a hanging state, so that it is possible to effectively prevent the portion from becoming airtight and the smoke passing through the portion. There is an advantage that the performance can be improved.

Incidentally, when the hanging curtain 1 is attached to the winding shaft 3 in carrying out the present invention, a groove 3a is formed on the outer periphery of the winding shaft 3 as shown in FIG. 4, and the groove 3a is formed.
It can be attached by fixing the lid body 3b with the base edge of the hanging curtain 1 applied to it, but in this case, the engagement between the concave groove 3a and the lid body 3b is performed. Part 3
By forming c and 3d, it becomes possible to attach the hanging curtain 1 to the winding shaft 3 in a one-touch manner without wrinkling. On the other hand, the bottom edge of the hanging curtain 1 and the seat plate 10 can be easily attached in the wrinkle-free state by the following procedure. That is, as shown in FIG.
The lower end edge of the hanging curtain 1 may be sewn into a tubular shape, and a stopper pipe 11 may be inserted through the tubular curtain to insert it into the seat case 12, and as shown in FIG. 6, the seat plate 13 may be disengaged. The split sheet may be freely divided, and the seat plate half portions 13a and 13b may be engaged with each other in a state where the lower end edge portion of the hanging curtain 1 is sandwiched between the divided surfaces. In such a case, the hanging curtain 1
The one-touch attachment to the seat plate 13 is possible without wrinkles.

[0012]

[Advantages] In summary, since the present invention is constructed as described above, in the event of an emergency such as a fire, the curtain is unwound to hang it from the ceiling to form a smoke-proof compartment, which is effective for rapid smoke propagation. The smoke proof curtain to avoid is wound around the winding shaft in a wrinkled state by the wrinkle roller arranged above the guide rail housing, and is wound in a wrinkled state. It will certainly avoid being taken.
Moreover, the take-up shaft is arranged in a space located side by side on the side of the guide rail accommodating portion, and the hanging curtain is suspended by the wrinkle roller to change the direction from the vertical direction to the horizontal direction. As a result, the curtain will be effectively wrinkled, and it will be avoided that the curtain will be wound in a wrinkled state, and the drooping action will be impaired in an emergency and the desired Smokeproof performance will not be lost. Further, in this one, since the drape is in surface contact with the wrinkle removing roller in a pressing state, it is possible to effectively prevent the portion from becoming airtight and the smoke passing through the portion. Smokeproof performance can also be improved.

[Brief description of drawings]

FIG. 1 is an overall front view of a ceiling storage type smoke proof curtain.

FIG. 2 is a partial cross-sectional side view of a ceiling storage type smoke proof curtain.

FIG. 3 is a side view, partly in section, showing a second embodiment of the ceiling-storing smoke proof curtain.

FIG. 4 is an explanatory diagram showing a state in which a hanging curtain is attached to a winding shaft.

FIG. 5 is an explanatory view showing a second embodiment in which the seat plate is attached.

FIG. 6 is an explanatory diagram showing a third embodiment in a state where the seat plate is attached.

FIG. 7 is a side view showing a conventional example.

[Explanation of symbols]

 1 Hanging screen 3 Rewinding shaft 4 Opening / closing machine 5 Guide rail 6a Guide rail housing 7 Wrinkle removing roller

Claims (1)

[Claims] 1. A rail accommodating portion formed on a ceiling portion, in which a base end portion is pivotally supported so that a tip end side is oriented vertically and hangs down to a storage orientation in which the tip end side is laid down laterally. A guide rail, a wrinkle removing roller that is disposed above the rail accommodating portion, and that changes the direction of the hanging curtain from the vertical direction to the wrinkle removing roller to wrinkle the hanging curtain; A ceiling, which is arranged in a substantially parallel shape and is provided with a winding shaft for winding the laterally converted banner, and a drive means for rotating the winding shaft. A retractable structure for the retractable smoke proof curtain.