JP6543555B2 - Smoke protection device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a smokeproof device that protects an evacuee from smoke when a fire occurs.

  Necessary helpers such as hospitalized patients and elderly people are vulnerable people, and it takes longer to move compared with healthy people at the time of evacuation at the time of fire occurrence in the hospital or elderly people facility. In particular, for wheelchair users, movement in a corridor or the like is horizontal evacuation, so it is relatively easy to move, but vertical evacuation down stairs or the like is difficult by itself and requires an assistant. The descent of wheelchair users can be a daunting task for caregivers. If there is a large number of personnel and a large number of assistants during evacuation in case of fire, there is no problem, especially in small facilities, it will be difficult to secure personnel, and it will be a response with a very small number of personnel especially at night. In recent years, in the welfare facilities for the elderly, when a fire accident occurs, many deaths occur.

  On the other hand, at the time of evacuation at the time of fire occurrence, the temporary evacuation area which is the area to escape is formed, and all necessary assistants are temporarily guided to the safe temporary evacuation area, and then take time to complete the outdoors completely. It can also be used to evacuate. However, when it is intended to form a so-called fire protection section as a temporary evacuation area, it is generally necessary to close the opening with a fire door at the location of the fireproof structure. Securing a temporary evacuation area with such a robust structure is heavy and expensive, and especially in small facilities, it is difficult to install in terms of strength and cost.

Japanese Patent Publication No. 49-35779

  Patent Document 1 describes a technique for preventing smoke by a curtain. However, since the curtain of Patent Document 1 is installed by being wound around the winding shaft of the shutter box provided on the door, the holding mechanism of the shaft is required and the structure is complicated. It was difficult to In addition, since a gap is generated between the hanging curtain and the shutter box, a structure is required to close the gap, and after installation, the hanging curtain gradually becomes heavy due to the weight at the bottom of the hanging curtain. There was a possibility of falling.

  The present invention is for solving the problems described above, and has the following configuration.

(1) The present invention is a smoke protection apparatus which can be installed indoors and can make an opening part smoke proof, comprising: a first smoke curtain and a second smoke curtain; The first smokeproof curtain has a first smokeproof sheet which is a heatproof smokeproof sheet having a substantially rectangular shape and a first fixing member provided on one side of the first smokeproof sheet, and the second smoke proofing The smoke curtain has a second smoke-proof sheet which is a substantially square heat-resistant smoke-proof sheet, and a second fixing member provided on one side of the second smoke-proof sheet, and a portion of the ceiling of the opening The other side of the first smoke protection sheet and the other side of the second smoke protection sheet are fixed to each other, and the first fixing member can be detachably attached to the ceiling without winding the first smoke protection sheet. The second fixing member is fixed on a ceiling opposite to a fixing place of the first fixing member without winding the second smokeproof sheet. When the first fixing member and the second fixing member are released from the ceiling, the first smoke curtain and the second smoke curtain are attached to the opening. It is a smokeproof device which hangs down and makes the opening part smokeproof.

  According to the present invention, it is possible to deploy a smokeproof sheet from the ceiling surface, and it is possible to realize a smokeproof device which deploys a smokeproof curtain in the case of a fire with a relatively simple and inexpensive structure.

(2) Further, the present invention is characterized in that the first smoke shielding curtain and the second smoke shielding curtain have a covering portion overlapping each other when the opening is in a smokeproof state. It is a smokeproof device of statement.

  According to the present invention, it is possible to prevent the entrance of smoke without providing a gap between the first smoke curtain and the second smoke curtain.

(3) Further, according to the present invention, the side portions of the first smoke-proof sheet and the second smoke-proof sheet are curved and abut on the side wall portion of the opening when the opening is smoke-proofed It is a smokeproof device as described in (1) or (2) characterized by the above-mentioned.

  According to the present invention, no gap is generated between the wall side portion of the opening and the smoke-proof sheet, and it is possible to prevent smoke from entering the gap.

(4) Further, according to the present invention, the heights of the first fixing member and the second fixing member hanging down when the opening is in a smoke-proof state are positions higher than the handrail in the opening. It is a smokeproof device in any one of (1) to (3) characterized by these.

  According to the present invention, the smoke curtain does not interfere with the handrail at the time of deployment even in a facility where a handrail is installed, such as a hospital or a facility for the elderly.

  According to the present invention, it is possible to evacuate a helper or the like at the time of a fire due to inexpensive equipment.

The figure which looked at the smoke-proof apparatus of the installation state provided in the ceiling from the floor direction. 1. AA sectional drawing in FIG. The figure which looked at the 1st smoke-proof curtain 1 at the time of making an opening part smoke-proof state, and the 2nd smoke-proof curtain 2 from surface direction. BB sectional drawing in FIG. BB sectional drawing in the modification of embodiment.

Hereinafter, embodiments of the present invention will be described based on the drawings. However, the embodiment described below is merely an illustration of the present invention in all respects. Various modifications and variations may be made without departing from the scope of the present invention. That is, in the implementation of the present invention, a specific configuration according to the embodiment may be appropriately adopted.
This embodiment is a smokeproof device which can be installed indoors to make the opening smokeproof. The opening is, for example, a part extending from the corridor where the rooms in the welfare facility for elderly people line up to the stairs, and this facility is provided with sprinkler equipment, and the heat at the time of fire is suppressed by the water discharge from the sprinkler equipment .

  FIG. 1 is a view of a smokeproof device installed on a ceiling, viewed from the floor. The first smokeproof curtain 1 has a first smokeproof sheet 11 which is a heatproof smokeproof sheet having a substantially rectangular shape and a first fixing member 12 provided on one side of the first smokeproof sheet 11. . Similarly, the second smoke prevention curtain 2 includes a second smoke prevention sheet 21 which is a heat protection smoke proof sheet having a substantially square shape and a second fixing member 22 provided on one side of the second smoke prevention sheet 21. Have. The other sides of the first smoke protection sheet 11 and the second smoke protection sheet 21 are fixed to a frame upper portion 41 which is a ceiling portion of the opening. In the installed state, the first fixing member is detachably fixed to the ceiling portion, and the second fixing member is detachably fixed to the ceiling portion in the direction opposite to the fixing position of the first fixing member. . At this time, the first smoke protection sheet and the second smoke protection sheet are not wound. Further, the width of the first smoke protection sheet 11 and the second smoke protection sheet 21 is slightly larger than the width of the frame upper portion 41, and the first smoke protection sheet 11 and the second smoke protection sheet 11 are in contact with the frame side portion 42 which is a side wall portion. It curves so that the side part of smoke-proof sheet 21 may become upward.

  The first smoke-proof sheet 11 and the second smoke-proof sheet 21 are polyester sheets coated with polyvinyl chloride resin, and have smoke resistance and transparency. Moreover, it has heat resistance which does not substantially change even at a high temperature of 80 to 120 degrees Celsius, and does not impair dimensional stability and visibility. The transparency of the first smoke-proof sheet 11 and the second smoke-proof sheet 21 makes it possible to observe smoke and the like from the side of the temporary evacuation area, and also for the necessary assistants who evacuate. It can be viewed and accepted. In addition, from the opposite side of the temporary evacuation area, it is possible to visually recognize the situation in the temporary evacuation area, such as how many people needing assistance etc. are evacuated.

FIG. 2 is a cross-sectional view taken along the line AA in FIG. The frame upper portion 41 and the iron plate 5 are fixed to the ceiling. A magnet (not shown) is incorporated in the first fixing member 12 and the second fixing member 22, and is fixed to the iron plate 5 so as to be removable. A neodymium magnet is used as this magnet, but any suitable fixed strength may be used. On the other hand, the first smoke protection sheet 11 and the second smoke protection sheet 21 are fixed to the frame upper portion 41. To the first fixing member 12 and the second fixing member 22, a pull cord 6 provided with a pulling ball at its tip is attached. Preferably, the drawstring 6 is provided to hang near the wall so as not to be in the way.
When a fire occurs in a hospital or an elderly person's facility, assistants such as nurses and caregivers pull the drawstring 6 after evacuating the assistants to the temporary evacuation area. As a result, the first fixing member 12 and the second fixing member 22 are released from the iron plate 5 and are expanded to be in a smokeproof state.

  FIG. 3 is a plan view of the first smoke protection curtain 1 and the second smoke protection curtain 2 when the openings are in a smoke proof state. The top of the opening 3 is closed by the hanging down 1st smoke curtain 1 and the 2nd smoke curtain 2, and it is in a smoke protection state. At this time, in the central portion, the first smoke protection curtain 1 and the second smoke protection curtain 2 overlap each other to form the covering portion 7. In the present embodiment, the first smoke protection curtain 1 and the second smoke protection curtain 2 are installed using the frame 4 having the frame upper portion 41 and the frame side portion 42. By this, even when additionally installing in an existing facility, it is possible to install without processing the wall surface and the ceiling surface, and it is easy to cope with the case where it is desired to move the installation position.

  Handrails are often provided on the walls of hospitals and facilities for the elderly. In the present embodiment, the heights of the first fixing member 12 and the second fixing member 22 are higher than the handrail 8 so as not to hit the handrail 8 in the unfolded state. As a result, the length of the first smoke protection curtain 1 and the length of the second smoke protection curtain 2 can be short, and the width of each of the first smoke protection curtain 1 and the second smoke protection curtain 2 can be small. Also, the magnet is incorporated in the first fixing member 12 and the second fixing member 22 in an appropriate direction and arrangement so that the first fixing member 12 and the second fixing member 22 can be detachably fixed at the covering portion 7. There is. The lower opening is enlarged by raising the lower ends of the first smoke protection curtain 1 and the second smoke protection curtain 2 above the handrail 8, but fire smoke travels near the ceiling, so the disaster vulnerable person who escaped temporarily The time it takes the stairs to go down can act as a smoke protection function.

  FIG. 4 is a cross-sectional view taken along the line B-B in FIG. Since the first fixing member 12 and the second fixing member 22 are detachably fixed, the first smoke protection sheet 11 and the second smoke protection sheet 21 are in close contact with each other at the covering portion 7. In addition, since the width of the first smoke protection sheet 11 and the second smoke protection sheet 21 is slightly larger than the width of the upper frame portion 41, a curve 9 is generated on the side portion thereof. As a result, the first smoke protection sheet 11 and the second smoke protection sheet 21 abut the frame side portion 42 which is the side wall portion, thereby preventing the entrance of smoke due to the gap with the side wall portion.

  FIG. 5: is the BB sectional drawing in the modification of embodiment. In the modification, the ridges 71 in the longitudinal direction are provided on the covering portion 7 of the first smoke protection sheet 11 and the second smoke protection sheet 21. Since the degree of adhesion at the covering portion 7 is thereby increased, it is possible to further prevent the entrance of smoke. In place of the ridges 71, magnets may be provided at mutually facing positions of the first fixing member and the second fixing member so as to magnetically attach to each other in the unfolded state.

  Fixation to the ceiling part of the first fixing member 12 and the second fixing member 22 may not be by magnets if removable. In addition, it is good also as a mechanism which employ | adopts an electromagnetic mechanism and is automatically released at the time of a fire generation | occurrence | production by the action | operation signal from the fire receiver which is not shown in figure. Also, the fixing may be directly fixed to the ceiling, or may be via any member. The number of smoke curtains may be as long as the number is plural. Furthermore, in the embodiment, the first smoke protection sheet 11 and the second smoke protection sheet 21 in the unfolded state are in close contact with the frame side portion 42 by the curve 9, but the width of the frame side portion 42 is narrowed to directly It may be in close contact with the wall. Alternatively, the first smoke protection sheet 11 and the second smoke protection sheet 21 may be directly fixed to the ceiling without providing the frame 4. The first smoke protection sheet 11 and the second smoke protection sheet 21 may have transparency as in the embodiment, but may not have transparency.

DESCRIPTION OF SYMBOLS 1 1st smokeproof curtain, 11 1st smokeproof sheet, 12 1st fixing member, 2 2nd smokeproof curtain, 21 2nd smokeproof sheet, 22 2nd fixing member, 3 opening part, 4 frame, 41 frame Upper part of the body, 42 frame sides, 5 iron plates, 6 drawstrings, 7 heads, 71 ridges, 8 handrails, 9 curves

Claims (4)

It is a smokeproof device installed indoors and capable of smokeproofing the opening,
With the first smoke curtain,
And a second smoke curtain,
The first smokeproof curtain has a first smokeproof sheet which is a heatproof smokeproof sheet having a substantially square shape and a first fixing member provided on one side of the first smokeproof sheet.
The second smoke-proof curtain has a second smoke-proof sheet which is a substantially square heat-resistant smoke-proof sheet, and a second fixing member provided on one side of the second smoke-proof sheet.
The other side of the first smoke protection sheet and the other side of the second smoke protection sheet are fixed to the ceiling portion of the opening,
The first fixing member is detachably fixed to the ceiling portion without winding the first smokeproof sheet.
The second fixing member is detachably fixed to a portion of the ceiling opposite to the fixing place of the first fixing member without winding the second smokeproof sheet.
When the fixing of the first fixing member and the second fixing member to the ceiling is released, the first smoke curtain and the second smoke curtain hang down at the opening to smoke the opening. Smoke protection device to put in a state.   The smokeproof device according to claim 1, wherein the first smokeproof curtain and the second smokeproof curtain have a covering portion overlapping each other when the opening is smokeproofed.   The side portions of the first smoke-proof sheet and the second smoke-proof sheet are curved and abut on the side wall portion of the opening when the opening is smoke-proofed. The smoke prevention device according to 2.   The height of the said 1st fixing member and the said 2nd fixing member which hung down when the said opening part is made into a smoke-proof state is a position higher than the handrail in the said opening part. The smoke protection device according to any one of the above.

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