JP2016003527A - Screen for fire prevention - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a screen for fire prevention, which can solve problems such as achievement of suitability for attachment to the inside of a building opening, an improvement in operability of the screen, and an improvement in fire resistance and incombustibility.SOLUTION: As shown in Fig.1 and Fig. 3, a screen 1 for fire prevention includes: a head 3, a sill 4, and right and left jambs 6 and 5, which are mounted on the inside of a building opening 2; a guide frame 7 that is arranged along the right and left jambs 6 and 5; a guide member 8 that is housed in the guide frame 7; a screen 9 that is wound and unwounded along a guide groove 80 of the guide member 8; and a storage box 90 that accommodates the screen 9 by winding it.

Description

  The present invention relates to a fire prevention screen that can be used as fire prevention equipment.

In order to prevent human damage that may occur in the event of a fire, it is required to install a fire shutter, etc., on the non-fire sash of the building opening.
There is a method of adding an external fire shutter as a method of renovating the opening of a building to fire prevention specifications.
However, it cannot be installed when there is a fence outside the opening of the building or when the storage box is large, and it may not be installed even when the opening is shaped like a bay window.
Fire shutters are generally composed of metal slats. However, installation of fire shutters inside the building openings is unacceptable in terms of design, and there are many internal constraints such as beams.

Patent Document 1 discloses a shutter in which a shutter frame including a shutter box, a shutter rail, and a shutter cradle is provided on the indoor side of a building, and a slat made of a transparent film is provided instead of a metal slat.
Although this shutter is not for fire prevention, the shutter box, the shutter rail, and the shutter cradle are exposed from the indoor surface, and cannot be directly applied to a fire prevention screen in terms of fire prevention measures. Further, the shutter box protrudes from the indoor surface, and this configuration disturbs the harmony of the room and is unacceptable in terms of design.

JP 2000-170453 A

  Therefore, the present invention solves the problems such as making the structure of the fireproof screen suitable for installation inside the opening of a building, improving the operability of the screen, improving fire resistance and nonflammability. An object of the present invention is to provide a fire prevention screen.

  In order to solve the above-mentioned problems, upper and lower frames and left and right frames attached to the inside of a building opening, guide frames arranged along the left and right frames, guide members accommodated in the guide frames, and guide grooves of the guide members A fireproof screen comprising a screen that is wound and unwound along, and a storage box that winds and stores the screen (the invention according to claim 1).

In the above invention, the guide frame has a clearance that can freely displace the guide member.
In the above invention, the guide member is disposed so as to be able to come into contact with a buffer portion provided in a hollow portion of the guide frame.

  Each of the fireproof screens has a structure which is fixed to the frame portion of the opening inside the building opening (the invention according to claim 4).

According to the present invention, the storage box can be made smaller by using a cloth-like screen instead of a metal slat, and can be installed without significantly reducing the lighting area from the opening. It is suitable for mounting inside the opening.
Further, since the guide member for guiding the winding and unwinding of the screen is configured independently of the guide frame, the operability of the screen can be improved.
Furthermore, each of the fireproof screens has a structure that is fixed to the frame portion of the opening inside the building opening, so that the area where each component is exposed to the indoor surface can be reduced, and the fireproof And nonflammability can be improved.

Longitudinal central cross-sectional view showing the wooden housing of the fire protection screen according to the present invention, Same cross-sectional view, The main part enlarged view of the guide frame and the guide member in the cross-sectional view, Longitudinal central sectional view showing the construction of reinforced concrete (RC) of the screen for fire prevention, FIG.

  As shown in FIGS. 1, 2, 3, and 4, the fireproof screen 1 according to the present invention includes upper and lower frames 3, 4 and left and right frames 5, 6 attached to the inside of a building opening 2, and left and right frames 5. , 6 and on the indoor side, a guide frame 7, a guide member 8 accommodated in the guide frame 7, and a screen 9 wound up and rewound along the guide groove 80 of the guide member 8. And a storage box 90 for winding and storing the screen 9.

  A sliding window or the like is attached to the building opening 2 via a sash frame S, but the fireproof screen 1 can be attached regardless of the configuration.

The upper and lower frames 3, 4 and the left and right frames 5, 6 are fixed to the inner peripheral surface of the building opening 2. For example, in the case of wooden housing shown in FIG. 1, the frame portion of the opening 2 20 is fixed to the inner peripheral surface 21.
That is, the upper and lower frames 3 and 4, the left and right frames 5 and 6, the guide frame 7, and the storage box 90 are arranged so as to be accommodated on the inner peripheral surface 21.
On the other hand, in the case of RC construction, it is fixed to the frame portion 20 via an anchor A as shown in FIGS.

The guide frame 7 is disposed at the indoor side end of the left and right frames 5 and 6, and as shown in FIG. 3, the end B1 of the bottom frame B (see FIG. 1) to which the front end side 91 of the screen 9 is attached. It consists of an opening 70 for entering and a hollow portion 71 formed in a hollow shape excluding the opening 70.
The free end 72 of the guide frame 7 that forms the opening 70 can be brought into contact with the guide member 8 and serves as a means for preventing the removal.
As shown in FIG. 3, each hollow portion 71 is provided with a buffer portion 73 made of, for example, sponge as a flame-retardant and non-flammable elastic material along the guide frame 7, and the free ends 72, 72 and It is fixed between the inner walls of the hollow part 71.

  As shown in FIG. 3, each of the guide members 8 is formed of a substantially mouth-shaped member having a slit 80 as a guide groove for sliding the vertical sides 92 of both edges of the screen 9. It is formed on the lower frame 4, for example, in a state where it can be substantially abutted against the buffer portion 73 independently of being fixed to the guide frame 7 and other members. Has been.

  The guide member 8 is accommodated in the hollow portion 71 so that a clearance C (play / gap) is formed around it.

The screen 9 is fire-resistant and non-flammable, and is formed of glass cloth or silica cloth, or a cloth coated or impregnated with a fire-resistant paint.
A retaining portion 93 is attached to the vertical side 92 of the screen 9 and is positioned so as to close the slit 80 of the guide member 8.
The retaining portion 93 is formed to be wider than the slit 80 because the vertical sides 92 of both edges are prevented from coming out of the slit 80 when the screen 9 receives a bending force. A plurality of pieces are formed between the upper and lower sides of the vertical side 92 of the screen 9 (not shown).

  A latch 94 is attached to the bottom frame B of the screen 9, and the latch 94 is locked to the lower frame 4. Therefore, the closed state of the building opening 2 by the screen 9 can be maintained.

  The accommodation box 90 accommodates a drum 95 to which the base end side of the screen 9 is attached. The screen 9 is wound up and rewound, and a mechanism capable of temporarily stopping at any position in the middle of the winding. I have.

The effects of the fireproof screen 1 having the above-described configuration are as follows.
(1) The fireproof screen 1 can be installed indoors regardless of the structure of the non-fireproof sash of the building opening 2, and in this case, a compact storage box 90 for storing a cloth-like screen is used. It is suitable for mounting inside the opening 2 of the building.
(2) The guide member 8 is independent in the hollow portion 71, and a clearance C is formed around the guide member 8. Therefore, the position of the guide member 8 can be displaced within the range, and when an external force is applied to the screen 9, the guide member 8 can be flexibly dealt with, and the operability of the screen 9 is improved.
(3) Further, when the building opening 2 is closed by the screen 9 due to the configuration and action of (2) above, when the external force, for example, smoke or flame, acts on the screen 9, the force is applied. Without directly acting on the retaining portion 93 of the screen 9, damage to the screen 9 can be prevented.
(4) The clearance C forms a heat insulating space between the guide frame 7 and the guide member 8 so that the heat received by the guide frame 7 does not directly affect the retaining portion 93 of the screen 9. Yes.
(5) When the screen 9 bends due to an external force together with the clearance C, the buffer 73 can prevent the screen 9 from being damaged without directly applying the force to the retaining portion 93. The stability and operability of the screen operation can be improved.
(6) Since each said fire prevention screen 1 is being fixed to the frame part 20 inside the building opening part 2, the upper and lower frames 3, 4, the left and right frames 5, 6, the guide frame 7, the guide member 8, and a storage box The exposed area of 90 can be reduced, and fire resistance and nonflammability can be improved.
(7) Since both ends of the screen 9 are accommodated in the guide member 8 and the lower ends thereof are also fixed to the lower frame 4 via the bottom frame B, and the opening 2 can be closed, Smoke and flame blowout to the outside can be prevented.

  The present invention is not limited to the above-described embodiments, and many modifications can be made by those having ordinary knowledge in the art within the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Screen for fire prevention 2 Building opening part 20 Frame part 21 Inner peripheral surface

3,4 Vertical frame

5,6 Left and right frame

7 Guide frame 70 Opening 71 Hollow part 72 Free end 73 Buffer part

8 Guide member 80 Guide groove (slit)

9 Screen 90 Storage box 91 Screen tip side 92 Screen vertical side 93 Stopping part 94 Latch 95 Drum

B Bottom frame B1 End S Sash frame C Clearance (play)

Claims (4)

  Upper and lower frames and left and right frames mounted inside the building opening, guide frames arranged along the left and right frames, guide members accommodated in the guide frames, and winding and rewinding along the guide grooves of the guide members A fireproof screen comprising a screen to be wound and a storage box for winding and storing the screen.   The fireproof screen according to claim 1, wherein the guide frame includes a clearance that can freely displace the guide member.   The fireproof screen according to claim 1, wherein the guide member is disposed so as to be able to contact a buffer portion provided in a hollow portion of the guide frame.   The fireproof screen according to any one of claims 1 to 3, wherein the fireproof screen is fixed to a frame portion inside the building opening and the opening.

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