JP2002210032A - Attaching device for fire shutter of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate such problems that by a conventional attaching device to be simply attached with screws to the external surface on the ceiling side, the outside air flows in from a gap generated at the attached location even under a shut off state, and stopping the fire spread becomes difficult, regarding a fire shutter which detects hot air when a fire is generated, and shuts off the ventilation to the ceiling plenum. SOLUTION: An attaching member 1 on the ceiling side is fitted on the ceiling plenum from an attaching port F on a fireproof ceiling plate E being bridged between ceiling joists D. Then, a screw section 1g for attaching which is fixed on the attaching plate section 1a is fitted in a through hole H for attaching of the fireproof ceiling plate E. The fire shutter 2 is attached in such a manner that the automatic temperature-sensitive ventilation-shutting off device 2a is fitted in the attaching port F, and an attaching plate 2d is brought into the ceiling external surface side E1, and a threaded body 3 for clamping is fitted from the attaching hole 2c and screwed with a threaded section 1c for attaching. When the fire shutter 2 is placed under a closed state, the generation of a gap at the attaching location is prevented from occurring extending to a long period of time because a fireproof ceiling plate e is firmly pinched with the attaching plate section 1a and the attaching plate 2d.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for manually adjusting the ventilation behind a ceiling in a building, or for automatically shutting off outside air from flowing into the ceiling at the beginning of a fire. Especially with regard to ventilating systems, the reliable prevention of the intrusion of outside air into the ceiling, thereby extending the time it takes for the fire to reach the ceiling as long as possible before firefighting operations can be started. The present invention relates to a device for mounting a fireproof shutter in a building for the purpose.

[0002]

2. Description of the Related Art Heretofore, fireproof shutters a in buildings.
Is to be attached to the ceiling plate b, the ceiling plate b is attached between the ridges c, c on the ceiling, and the opening d is opened at the opening d, so that the automatic shutter The thermal ventilation blocking device e is fitted on the ceiling side, and the mounting plate f attached to the automatic temperature-sensitive ventilation blocking device e is pressed against the ceiling plate outer surface b1 of the ceiling plate b, which is fixed with screws or the like. Like that. As is well known, a large number of ventilation holes h are opened in the mounting plate f. (Not shown) and a movable ventilation blocking portion (not shown) are provided. Then, the opening / closing sliding plate i is manually or automatically connected to the automatic temperature-sensitive ventilation cutoff device e.
When the movable vent is mounted on the vent h, the ventilation is maximized. When the vent i is closed by the movable vent block, the inflow of outside air is shut off. It is configured to obtain.

Therefore, according to the above prior art, since the mounting plate f is only attached to the flammable ceiling plate b made of wood or the like by the screw g, the mounting plate f and the outer surface b1 of the ceiling plate are not attached. A gap is easily formed between the openings, and therefore, even if the vent hole j is closed by the movable ventilation blocking portion due to the reaction of the automatic temperature-sensitive ventilation blocking device e with hot air, outside air flows into the ceiling from the clearance. become. As a result, the progress of the fire cannot be sufficiently suppressed until the fire truck arrives at the building.
Since it is a normal wooden or synthetic resin plate, it is not only deformed by fire and not only facilitates the inflow of air to the ceiling side, but also because carbonization proceeds rapidly, the gap becomes large. However, the inherent effect of the fireproof shutter a cannot be exhibited, and the progress of the fire cannot be sufficiently suppressed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned deficiencies of the conventional fire shutter mounting device in a building. Instead of simply using wood or synthetic resin as the board, a fireproof ceiling board is partially installed and a fireproof shutter is attached to it to suppress deformation during use and carbonization in the event of a fire In this way, the air between the fireproof shutter and the fireproof ceiling panel will inadvertently allow significant air to flow into the ceiling, preventing the fire from spreading to the ceiling early. Is the first
Is the purpose.

What is important in the present invention is that the mounting plate f of the fireproof shutter a is not fixed to only the outer surface b1 of the ceiling plate b, which is one surface of the ceiling plate b, as in the conventional example with screws g. A ceiling-side mounting member to be newly disposed in the ceiling is separately prepared, and the fire-resistant ceiling plate is sandwiched by the mounting plate portion and the mounting plate of the above-described fireproof shutter. A second method is to hold the space between the outer surface of the ceiling plate and the mounting plate of the fireproof shutter in a pressure-tight and sealed state for a long period of time so that undesired air can be reliably prevented from flowing into the space above the ceiling. Is the purpose.

In addition to the above, according to the present invention, a mounting screw portion set on a ceiling-side mounting member inserted from the opening of the fireproof ceiling panel to the ceiling side is inserted into the mounting opening of the fireproof ceiling panel. Then, the automatic temperature-sensing ventilator of the fireproof shutter is fitted into the above-mentioned mounting opening, the mounting plate is pressed against the outer surface of the ceiling of the fireproof ceiling plate, and the screw is fastened from the mounting hole of the mounting plate. It is a third object of the present invention to make it possible to easily and quickly complete the mounting device for the fireproof shutter by configuring the mounting device so that it can be screwed and fastened to the mounting screw portion.

According to the first aspect of the present invention, a ventilation path is formed between the ceiling-side mounting member and the fire-prevention shutter so that when the fire-prevention shutter is in a ventilation state, outside air can sufficiently flow into the ceiling. It is a fourth object to prevent the ventilation effect from being disturbed by the inflow.

Next, in claims 2 to 4,
In each case, an embodiment for more effectively achieving the object of the first aspect is disclosed. In the second aspect, the structure of the ceiling-side mounting member is attached to the mounting plate, the upright plate, and the ceiling. By forming a ventilation opening in the top plate, the flow of the outside air flowing into the ceiling for ventilation is made smooth, and the ventilation effect can be ensured. In the third aspect, a mounting screw portion projecting from the mounting plate portion of the ceiling-side mounting member is screwed into a mounting screw hole in the mounting plate portion of the mounting male screw, and a tightening screw body is mounted. The fireproof ceiling plate can be clamped between the ceiling-side mounting member and the fireproof shutter by being screwed into the axial center screw hole of the mounting screw portion, whereby the various objects in claim 1 are achieved. Is trying to be achieved more reliably. According to a fourth aspect of the present invention, the attachment of the attachment screw portion to the ceiling-side attachment member having the same effect as the object of the third aspect is realized by a welded portion on the premise of an appropriate configuration of both. As with the third aspect, the mounting device for the fireproof shutter can be completed by a simple and quick operation.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the conventional mounting device. According to the first aspect, the present invention comprises a ceiling-side mounting member and a fireproof shutter, The mounting member is composed of an attachment plate portion having a mounting screw portion protruding therefrom and a start-up plate portion connected to the attachment plate portion. And an opening / closing sliding plate provided with a movable ventilation opening and a movable ventilation blocking portion by slidably stacking on a mounting plate provided with a number of ventilation openings and mounting holes by the operation. Then, by operating the automatic temperature-sensitive ventilation blocking device, the sliding plate for opening and closing is slid, and the ventilation port can be closed by the movable ventilation blocking portion from the heavy ventilation state between the ventilation port and the movable ventilation port. On a part of the ceiling plate in the building, A required number of mounting through-holes are fitted around the periphery of the mounting opening formed in the fireproof ceiling panel, and the mounting is performed by the above-described ceiling-side mounting member inserted into the ceiling from the mounting opening. The screw portion is inserted into the mounting hole of the fireproof ceiling panel, and the automatic temperature-sensitive ventilation cutoff device for the fireproof shutter is inserted into the ceiling side from the mounting port, so that the mounting plate is attached. In a state where it is pressed against the ceiling outer surface side of the fireproof ceiling plate, the fastening screw is attached to the ceiling side mounting member from the mounting hole of the mounting plate through the mounting through hole of the fireproof ceiling plate. By screwing and fastening to the fixed mounting screw portion, the fireproof ceiling plate is sandwiched between the mounting plate portion of the ceiling side mounting member and the mounting plate of the fireproof shutter, and the fireproof ceiling plate and the fireproof shutter are mounted. A ventilation path is formed between the shutter and the building. We are trying to provide an attachment apparatus of the fire shutter.

[0010] Next, any of the second and subsequent claims are the same as those of the first aspect.
In the second aspect, the ceiling-side mounting member includes an upright plate portion continuously provided from a pair of attachment plate portions, and the upright plate portion. The ceiling is provided with a ventilation opening, and the ceiling is provided with a ventilation opening. The mounting screw portion is fixed by screwing the mounting male screw portion to the mounting screw hole of the mounting plate portion, and mounting the fireproof ceiling plate from the mounting hole in the mounting plate of the fire prevention shutter. The fastening screw inserted into the through hole is screwed into the axial screw hole of the mounting screw portion.

According to a fourth aspect of the present invention, in the first aspect, the mounting screw portion protruding from the mounting plate portion of the ceiling-side mounting member has the mounting projection portion attached to the mounting plate portion. And fixedly attached to the mounting projection by welding the flange edge portion continuously provided to the mounting projection to the mounting plate portion, and inserted into the mounting through hole of the fireproof ceiling plate. The fastening screw is screwed into an axial screw hole of the mounting screw portion.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an apparatus for attaching a fireproof shutter according to the present invention; FIG. The ceiling-side mounting member 1, which is the former, is formed by a pair of mounting plate portions 1a and a rising plate portion 1b connected thereto in the case of the drawing, and the mounting plate portion 1a is provided. , A plurality of required mounting screw portions 1c are projected and fixed orthogonally. And the above fire prevention shutter 2
As is known, the automatic temperature-sensing ventilator 2a which operates by sensing hot air due to the occurrence of a fire, and as can be understood from FIGS.
The mounting plate 2d provided with the mounting hole 2c and the opening / closing sliding plate 2g provided with a movable ventilation port 2e and a movable ventilation blocking portion 2f by slidably stacking. A shutter mechanism is formed.

Therefore, the above-mentioned automatic temperature-sensitive ventilation cutoff device 2
FIG. 5 (A) shows that the opening / closing dynamic plate 2g is slid by actuating a component member that exerts a spring force based on melting of a hot-melt metal (not shown). The function as a shutter is achieved by making the vent 2b freely movable by the movable vent block 2f as shown in FIG. 3B from the heavy ventilation state of the vent 2b and the movable vent 2e as clearly shown in FIG. Will be demonstrated.
In the same figure, reference numeral 2h denotes a manual knob. By manually operating the knob 2h, the vent 2b can be opened and closed.
For this reason, the extension 2i of the manual knob 2h is fixed to the opening / closing moving plate 2g by the welded portion 2j, and the force generated by the operation of the automatic temperature-sensitive ventilation cutoff device 2a is reduced.
By acting in the direction of arrow A, the vent 2b is closed. Of course, the object of the present invention can be achieved no matter what configuration is adopted as the automatic temperature-sensitive ventilation cutoff device 2a.

In the first aspect of the present invention, the above-mentioned constituent members are arranged at appropriate locations as described below, thereby constituting a mounting device for the fireproof shutter 2 in a building. That is, in the part of the ceiling plate B in the building,
A fireproof ceiling panel E is fixed in between, and a mounting opening F of a rectangular shape or the like is opened in the fireproof ceiling panel E as shown in FIG. To penetrate. Therefore, by mounting the ceiling-side mounting member 1 described above on the ceiling side through the mounting opening F of the fireproof ceiling panel E, the mounting screw portion 1c protruding from the ceiling-side mounting member 1 as described above is removed.
It is inserted into the above-mentioned through hole H in the fireproof ceiling panel E.

Next, the automatic temperature-sensitive ventilation cutoff device 2a of the fireproof shutter 2 is inserted into the ceiling side from the mounting opening F, and the mounting plate 2d is pushed against the ceiling outer surface E1 of the fireproof ceiling plate E. In this state, the separately provided fastening screw 3 is attached from the mounting hole 2c of the mounting plate 2d through the mounting hole H in the fireproof ceiling panel E to the ceiling side as described above. Mounting screw portion 1 fixed to member 1
c. As a result, the fireproof ceiling plate E is sufficiently sandwiched between the mounting plate portion 1a of the ceiling side mounting member 1 and the mounting plate 2d of the fireproof shutter 2, and the outside air is unintentionally rejected by the fireproof ceiling plate E. Ceiling outer surface side E1 and mounting plate 2d
It is possible to maintain high reliability for a long time without blocking the ventilation without leaking to the ceiling side from the space. In addition, in the first aspect, the ventilation shutter J is formed between the ceiling-side mounting member 1 and the air-tightness shutter 2 instead of covering the fire-proof shutter 2 with the ceiling-side mounting member 1. Is introduced from the ventilation port 2b to the ceiling side through the movable ventilation port 2e, so that the purpose can be surely achieved even when the building is ventilated.

Next, claim 2 will be described with reference to FIG.
As disclosed in FIG. 4 and FIG. 7, the ceiling-side mounting member 1 according to claim 1 includes a pair of mounting plate portions 1 a,
1a, standing plate portions 1d, 1d continuously provided therefrom,
The top plate 1e is formed by connecting the standing plates 1d and 1d, and the top plate 1e has no ventilation opening 1f. Therefore, when such a ceiling-side mounting member 1 is adopted, not only the pair of side surfaces without the standing plate portions 1d and 1d are opened but also a ventilation opening 1f is opened. Therefore, the ventilation path J described above is sufficiently ensured, and satisfactory ventilation performance can be maintained.

Next, according to the third aspect, the mounting screw portion 1c protruding from the mounting plate portion 1a of the ceiling side mounting member 1 in the first aspect is specified as follows. ing. That is, in order to fix the attachment screw portion 1c to the attachment plate portion 1a, an attachment male screw 1g is provided on the upper end side, and this is provided on the attachment plate portion 1a as shown in FIG. 2 (A). It is adapted to be screwed into the mounting screw hole 1h. Then, the above-mentioned fastening screw 3 is cut from the mounting hole 2c of the mounting plate 2d of the fireproof shutter 2 to the mounting through hole H of the fireproof ceiling panel E in the mounting screw portion 1c. It is screwed into the shaft center screw hole 1i, and 1j in FIG.
Indicates a tapered tapered hole for facilitating the introduction of the fastening screw 3 into the axial screw hole 1i.

According to a fourth aspect, there is disclosed a means for fixing the mounting screw portion 1c to the ceiling side mounting member 1 different from the third aspect. As understood from FIG. 2 (B), the mounting screw portion 1c has its mounting protrusion 1k,
Fitting port 1 opened in mounting plate 1a of ceiling side mounting member 1
m, and a flange 1m connected to the mounting projection 1k is welded to the welding portion 1p in a contact state with the mounting plate 1a.
And the fastening screw 3 inserted into the mounting through hole H of the fireproof ceiling panel E in the same manner as described above,
Also, it is screwed into the axial screw hole 1i of the mounting screw portion 1c, and in this case also, the tapered tapered hole 1j is opened at the lower end side as described above.

[0019]

According to the first aspect of the present invention, which is constructed as described above, deformation during use and carbonization due to fire are suppressed by appropriately disposing the fireproof ceiling panel. It is possible to prevent undesired outside air flowing into the ceiling from the gap between the fireproof shutter and the fireproof ceiling panel, delay the situation in which a fire spreads to the ceiling, and improve the performance of fire suppression by firefighting work be able to. Moreover, since the above-mentioned fireproof ceiling plate is sandwiched between the ceiling mounting member and the fireproof shutter with the fastening screw, the ceiling side from the space between the outer surface of the ceiling plate and the mounting plate portion of the fireproof shutter for a long time. Inadvertent entry of air into the
With respect to the above-described suppression of fire spread, high reliability can be ensured.

Further, when the fireproof ceiling plate is sandwiched between the ceiling side mounting member and the prevention shutter, the mounting screw portion of the ceiling side mounting member inserted into the ceiling side through the mounting opening of the fireproof ceiling plate. Can be completed by simply fitting the mounting screw into the mounting hole of the fireproof ceiling panel and screwing the fastening screw to the mounting screw portion. Not only can be completed efficiently, but also a fireproof shutter and a ceiling-side mounting member are provided adjacently on the ceiling side. It is also possible to maintain a healthy environment without disturbing the environment.

By implementing the contents of claims 2 to 4, the reliability of the invention according to claim 1 can be ensured. In claim 2, the ceiling-side mounting member is appropriately configured, and furthermore, ventilation is achieved. By opening the opening for the top plate,
The above-mentioned ventilation path can be sufficiently provided, and the ventilation effect can be secured. According to the third and fourth aspects, the fixing means of the mounting screw portion to the ceiling-side mounting member is specified to be screwed or welded, and the fastening screw is screwed to the axial screw hole of the mounting screw portion. This ensures that the fireproof ceiling panel is clamped between the ceiling-side mounting member and the fireproof shutter sufficiently strongly by an extremely simple and quick operation.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view taken along line YY of FIG. 3 showing a mounting device for a fireproof shutter in a building according to claim 1 of the present application.

FIG. 2A is a longitudinal sectional side view showing a mounting means of a mounting screw portion to a mounting plate portion in a ceiling side mounting member according to claim 3 of the present application, and FIG. It is a longitudinal side view which showed the attachment state of the attachment plate part and the attachment screw part.

FIG. 3 is a front view of an essential part showing an attachment device for a fireproof shutter according to claim 1 of the present application.

FIG. 4 is a transverse sectional view taken along line XX of FIG. 3;

5A and 5B show a stacked state of an attachment plate and an opening / closing sliding plate constituting a shutter mechanism in the present application, wherein FIG. 5A shows an open state of a vent, and FIG. 5B shows a closed state of the vent. It is a cross-sectional view of the principal part shown respectively.

FIG. 6 is a front view showing a mounting opening formed in the fireproof ceiling panel.

FIG. 7 is a plan view of a ceiling-side mounting member.

FIG. 8 is an enlarged longitudinal side view showing the vicinity of a mounting screw portion in FIG. 1;

FIG. 9 is a front view of a main part showing a conventional fireproof shutter mounting device.

FIG. 10 is a cross-sectional plan view taken along line XX of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling side mounting member 1a Mounting plate part 1b Erecting plate part 1c Mounting screw part 1d Erecting plate part 1e Top plate part 1f Vent opening 1g Mounting male screw 1h Mounting screw hole 1i Shaft center screw hole 1k Mounting Projection 1m Fitting opening 1n Flange edge 2 Fireproof shutter 2a Automatic temperature-sensitive ventilation blocking device 2b Vent 2c Mounting hole 2d Mounting plate 2e Movable ventilation opening 2f Movable ventilation blocking portion 2g Opening / closing sliding plate 3 Fastening screw Body B Ceiling panel D Field edge E Fireproof ceiling panel E1 Ceiling outer side F Mounting opening G Perimeter H Mounting through hole J Ventilation path

Claims (4)

[Claims] 1. A ceiling-side mounting member and a fire-preventing shutter, the ceiling-side mounting member comprising a mounting plate portion having a mounting screw portion projecting therefrom and a rising plate portion connected to the mounting plate portion, The fire prevention shutter is slidably mounted on an automatic temperature-sensing ventilation cut-off device that operates by sensing hot air caused by a fire and a mounting plate provided with a number of ventilation holes and mounting holes by the operation. And a sliding plate for opening and closing provided with a movable ventilation opening and a movable ventilation blocking portion. By the operation of the automatic temperature-sensitive ventilation blocking device, the sliding plate for opening and closing is slid, and the ventilation opening, the movable ventilation opening and The air vent can be freely closed by a movable vent blocker from the heavy ventilation state of the above, and is located on a part of the ceiling plate in the building, and the periphery of the mounting opening opened on the fireproof ceiling plate laid across the field margin The required number of mounting holes are fitted in the The mounting screw portion of the ceiling-side mounting member mounted on the side is inserted into the mounting through hole of the fireproof ceiling plate, and the automatic temperature-sensitive ventilation shut-off device for the fireproof shutter from the mounting opening. By loading the ceiling side
In a state where the mounting plate was pressed against the outer surface of the ceiling of the fireproof ceiling plate, the fastening screw was inserted from the mounting hole of the mounting plate through the mounting hole of the fireproof ceiling plate. By screwing and fastening to a mounting screw portion fixed to the ceiling side mounting member, the fireproof ceiling plate is sandwiched between the mounting plate portion of the ceiling side mounting member and the mounting plate of the fireproof shutter, and An attachment device for a fireproof shutter in a building, wherein a ventilation passage is formed between the mounting member and the fireproof shutter. 2. The ceiling-side mounting member includes an upright plate portion continuously provided from a pair of attachment plate portions, and a ceiling portion provided with the upright plate portions connected to each other. The mounting device for a fireproof shutter in a building according to claim 1, wherein the opening for opening is not provided. 3. An attachment screw portion projecting from an attachment plate portion of the ceiling-side attachment member is fixed by screwing the attachment male screw portion into an attachment screw hole of the attachment plate portion. The fastening screw inserted from the mounting hole in the mounting plate of the fireproof shutter into the mounting through hole of the fireproof ceiling plate is screwed into the axial screw hole of the mounting screw portion. 2. A mounting device for a fire prevention shutter in a building according to 1. 4. A mounting screw portion protruding from the mounting plate of the ceiling-side mounting member fits the mounting protruding portion into a fitting opening of the mounting plate portion and the mounting protruding portion. The fixing screw body inserted into the mounting hole of the fireproof ceiling plate is fixed by fixing the flange edge portion continuously provided to the mounting portion to the mounting plate portion, and the axial center of the mounting screw portion. The mounting device for a fireproof shutter in a building according to claim 1, wherein the mounting device is screwed into the screw hole.