JP7317762B2 - shutter device - Google Patents

Description

The present invention relates to a shutter device arranged at a building opening.

Conventionally, a shutter device arranged at a building opening is known.

Japanese Patent Application Laid-Open No. 2014-167200

The shutter device of Patent Document 1 is arranged on the outdoor side of a double sliding window provided at an opening of a building.
In recent years, it is becoming common to impart fireproof performance to fittings including shutter devices, and it is desired to impart even higher fireproof performance to shutter devices.

SUMMARY OF THE INVENTION An object of the present invention is to provide a shutter device arranged at a building opening with higher fire prevention performance.

The shutter device of the embodiment includes a tight member that abuts on the upper surface of the lower frame below the seat plate, and a cover piece on the outdoor side of the seat plate. It is a shutter device that covers the outdoor side of the wall and has a tight material attached to the lower part.

According to the shutter device of the embodiment, higher fire prevention performance can be imparted to the shutter device arranged at the opening of the building.

1 is an external view of a shutter device according to one embodiment; FIG. 1 is a vertical sectional view of a shutter device of one embodiment; FIG. It is a cross-sectional view of the shutter device of one embodiment. It is a figure of the lower frame part of the shutter apparatus of one Embodiment, (a) is a vertical sectional view, (b) is a top view. It is a vertical cross-sectional view of the lower frame portion of the shutter device of one embodiment, (a) is a diagram at the time of normal, (b) is a diagram at the time of fire. It is a vertical cross-sectional view of the lower frame portion of the shutter device of one embodiment at the time of fire.

A shutter device of one embodiment will be described with reference to the drawings.
The shutter device 5 is arranged on the outdoor side of a double sliding window or the like arranged at the opening of a building, and as shown in FIG. It has guide rails 531 and 541 arranged at the left and right positions of the opening, and a shutter curtain 55 extended from the shutter box 51 and guided by the guide rails 531 and 541 to open and close the opening.

As shown in FIGS. 2 and 3, the shutter device 5 of this embodiment is provided on the outdoor side of the double sliding window of the half-bay type. A side wall 511 is integrally formed, and a shutter lower frame 52 is integrally formed on the outdoor side of the lower frame 12 of the double sliding window.
Further, left and right shutter vertical frames 53, 54 are integrally formed on the outdoor side of the left and right vertical frames 13, 14 of the sliding window, and guide rails 531, 541 are provided at the outdoor ends of the shutter vertical frames 53, 54. installed.

It should be noted that the shutter device 5 of this embodiment is arranged on the outdoor side of a half-bay type double sliding window in which the inner and outer shojis 2 and 3 and the screen door 4 are arranged on the inner periphery of the frame 1. The fittings are not limited to a half bay window type double sliding window, and the shutter lower frame of the shutter device 5, the left and right shutter vertical frames, etc. may be fixed to

－Shutter box－
As shown in FIG. 2, the shutter box 51 of this embodiment is a box-shaped member for housing the shutter curtain 55 and the like when the shutter is opened, and is fixed above the opening of the building on the outdoor side.
Inside the shutter box 51, a winding shaft 51a for winding a shutter curtain 55 is rotatably arranged. 5 is opened and closed.

A lower wall 511 of the shutter box 51 is formed integrally with the upper frame 11 of the double sliding window, and an opening 511a through which the shutter curtain 55 is pulled out is provided on the outdoor side of the lower wall 511 .

-Shutter lower frame-
As shown in FIGS. 2 and 4, the shutter lower frame 52 of this embodiment is integrally formed on the outdoor side of the lower frame 12 of the double sliding window.
The lower frame 12 of the double sliding window has inner and outer rails for guiding the inner shoji 2 and the outer shoji 3 on the upper surface of the lower frame main body 121 having a hollow portion, and the shutter device 5 is provided on the outdoor side of the lower frame main body 121. A shutter lower frame 52 is integrally formed.

The hollow portion of the lower frame main body 121 forms a drainage path for condensed water, etc., generated in the double sliding window, and guides the condensed water, etc. into the hollow portion at an appropriate location on the upper wall 121a of the hollow portion of the lower frame main body 121. An introduction hole is formed, and drain holes 121c are formed in the vicinity of both left and right ends of the outdoor side wall 121b of the hollow section to drain the water inside the hollow section to the outside. A check valve is attached to the drain hole 121c.

Reinforcing members 82 are arranged in the hollow portion of the lower frame main body 121 at positions where the drainage holes 121c are formed in the horizontal direction, that is, in the vicinity of the left and right end portions of the lower frame main body 121 .
The reinforcing member 82 has a fixed portion 82a fixed to the upper wall 121a of the hollow portion, and an external wall 82b extending from the fixed portion 82a to the outside and facing the drain hole 121c. A heat expansion material f that expands in the event of a fire is arranged.

Therefore, in the event of a fire, the thermally expansive material f disposed on the exterior wall 82b of the reinforcing member 82 expands to block the drainage hole 121c formed on the exterior side, so that the water can flow through the drainage hole 121c. Communication between indoor and outdoor can be suppressed.
Since the reinforcing member 82 is fixed relatively to the indoor side of the upper wall 121a of the hollow portion of the lower frame main body 121, it is possible to prevent the reinforcing member 82 from becoming unfixed in the early stages of a fire on the outdoor side, thereby preventing thermal expansion. The closure of the drain hole 121c by the material f can be maintained.

The shutter lower frame 52 extends from the outdoor side of the lower frame main body 121 and has a bottom wall 52a with which the lower end of the shutter curtain 55 abuts, and an outdoor side wall 52b continuous with the outdoor side of the bottom wall 52a. A drain hole is formed at an appropriate position of the bottom wall 52a for draining water accumulated on the upper surface of the bottom wall 52a.

－Shutter Curtain－
As shown in FIG. 2, the shutter curtain 55 of this embodiment is formed by rotatably connecting a plurality of slats 551. A seat plate 552 is connected to the lower end of the shutter curtain 55 .

As shown in FIG. 3, each slat 551 has guide members 551a fixed to its left and right ends. You are guided.

A seat plate 552 connected to the lower end of the shutter curtain 55 abuts against the bottom wall 52a of the shutter lower frame 52 to close the opening when the shutter curtain 55 is fully closed. A cap member 553 made of resin is attached to the .

－Guide rail－
As shown in FIG. 3, the guide rails 531 and 541 of this embodiment are fixed to the outside of the left and right vertical frames 13 and 14 (shutter vertical frames 53 and 54) of the sliding window.
Since the left and right guide rails 531 and 541 have the same configuration, the guide rails will be described below using the left guide rail 531 .

The left vertical frame 13 constituting the double sliding window is integrally formed with a vertical shutter frame 53 which extends in the inner peripheral direction from the inner periphery of the outdoor end and is formed by bending the inner peripheral end to the outdoor side. Engagement portions 13a, 53a for attaching guide rails 531 are provided at the inner peripheral end of the frame 53 and the outer peripheral outdoor end of the left vertical frame 13 .

The guide rail 531 includes a guide groove 531a having a U-shaped cross section, a mounting piece 531b extending in the indoor direction from the indoor side surface of the guide groove 531a, and an outer periphery extending in the outer peripheral direction from the outer periphery of the guide groove 531a and bent toward the indoor side. The mounting piece 531b is fixed to the engaging portion 53a of the shutter vertical frame 53, and the indoor end of the outer peripheral wall portion 531c is fixed to the engaging portion 13a of the left vertical frame 13. , and is fixed to the outside of the left vertical frame 13 .
A shielding member made of mohair or the like is attached to the inner peripheral side of the guide groove 531a to contact the shutter curtain 55 and prevent dust from entering the guide.

Inside the guide groove 531a, a first reinforcing member 75 made of an aluminum material such as an aluminum alloy and having an approximately L-shaped cross section and having an exterior wall portion and an outer peripheral wall portion extends substantially over the entire length of the guide rail 531 in the longitudinal direction. It is fixed to the outer peripheral side wall of the guide groove 531a by fixing means such as screws.

Further, on the indoor side of the outdoor wall portion of the first reinforcing member 75 inside the guide groove 531a, a groove-shaped second reinforcing member 76 made of an aluminum material such as an aluminum alloy for guiding the guide member 551a of the slat 551 is provided. are placed.
The indoor wall portion of the second reinforcing member 76 extends in the inner peripheral direction and is fixed to the indoor side wall of the guide groove 531a by fixing means such as screws.

A thermal expansion material that expands when heated is arranged on the inner peripheral indoor side surface of the outdoor wall portion of the first reinforcing member 75 and the inner peripheral outdoor side surface of the indoor wall portion of the second reinforcing member 76 .

-Seat plate-
In the shutter fittings of the present embodiment, the seat plate 552 arranged at the lower end of the shutter curtain 55 suppresses indoor-outdoor communication that occurs in the event of a fire, thereby improving fire prevention performance.
The configuration of the seat plate 552 for improving the fireproof performance will be further described below.

As shown in FIG. 5A, the seat plate 552 connected to the lower end of the shutter curtain 55 includes a seat plate body portion 552a having a rectangular hollow portion in cross section and extending indoors from the indoor side surface of the seat plate body portion 552a. It has a handle portion 552b and a cover piece 552c extending downward after extending from the outdoor side surface of the seat plate main body portion 552a to the outdoor side.

A tight member s1 is attached to the lower end of the seat plate body portion 552a of the seat plate 552, and is in contact with the upper surface of the bottom wall 52a of the shutter lower frame 52 of the lower frame 12. I keep it confidential.
A heat expansion material holder is formed on the lower surface of the handle portion 552b of the seat plate 552, and a heat expansion material f that expands due to heat in the event of a fire is arranged.

When the shutter curtain 55 is closed, the cover piece 552c of the seat plate 552 is formed to extend from a position above the outdoor side wall 52b of the shutter lower frame 52 to the outdoor side, and then to extend downward. The piece 552c covers the outdoor side of the outdoor side wall 52b of the shutter lower frame 52 while being separated from the outdoor side wall 52b.
The seat plate 552 has a tight material holder that opens downward at the lower end of the cover piece 552c. It is arranged so as to be positioned below the lower end of 52b.

In the event of a fire, as shown in FIG. 5(b), the heat expansion material f arranged on the lower surface of the handle portion 552b of the seat plate 552 expands, so that the upper surface of the bottom wall 52a of the shutter lower frame 52 and the shutter It is possible to prevent a gap from being generated between the lower end of the curtain 55 and the curtain 55 .

Moreover, even if the shutter curtain 55 is deformed by the heat of a fire, as shown in FIG. It is possible to suppress the formation of a gap between the lower frame 12 and the shutter curtain 55 due to the tight material s2 coming into contact with the outdoor side surface of the outdoor side wall 52b or the like.

As described above, the seat plate 552 of the shutter device 5 of the present embodiment hangs apart from the tight material s1 that contacts the upper surface of the lower frame 12 and the outdoor side of the outdoor side wall 52b of the lower frame 12. A cover piece 552c is provided, and since the cover piece 552c covers the outdoor side wall 52b of the lower frame 12, the lower frame 12 is protected against flames from the outdoor side without affecting the opening and closing of the shutter curtain. can be protected, and indoor-outdoor communication due to melting of the lower frame 12 can be suppressed.

In addition, by providing a flame-retardant or non-flammable airtight material s2 below the cover piece 552c of the seat plate 552, it is possible to further suppress the occurrence of gaps caused by deformation of the shutter curtain 55, thereby improving the fireproof performance. can be improved.

In addition, in the shutter fitting of the above embodiment, the tight material s2 is provided at the lower end of the cover piece of the seat plate, but the tight material s2 may be provided on the indoor side surface of the lower portion of the cover piece.
Further, the material of the tight material s2 is not limited, and may be sintered chloroprene rubber or the like in addition to ethylene propylene diene rubber.

Furthermore, the lower end position of the cover piece of the seat plate may extend downward to the extent that it covers the outdoor side viewing wall 52b of the shutter lower frame 52, but is positioned below the lower end position of the outdoor side viewing wall 52b. is preferred.

In addition, it goes without saying that the above embodiments do not limit the invention described in the claims, but are treated as examples.

5: Shutter device 51 : Shutter box 52 : Shutter lower frame 52a : Bottom wall 52b : Outdoor side wall 53, 54 : Shutter vertical frame 531 : Guide rail 55 : Shutter curtain 552 : Seat plate 552a : Seat plate body 552b : Handle portion 552c : Cover piece s1 : Tight material s2 : Tight material

Claims (1)

The lower part of the seat plate is provided with a tight material that contacts the upper surface of the lower frame, and the seat plate is provided with a cover piece on the outdoor side,
The cover piece covers the outdoor side of the outdoor side wall of the lower frame, and the shutter device in which a tight material is attached to the lower part.

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