JP6158545B2 - Fireproof structure of window shutter vertical frame - Google Patents

Description

The present invention relates to a fire prevention structure for a vertical frame of a window shutter.

The window shutter device is attached to the outer wall W of the building so as to open and close the space outside the window device. When the window opening is closed by the shutter, the window shutter device is made of metal in the left and right metal guide rails. Both ends of the shutter curtain in the width direction are received, and the metal seat plate at the lower end of the shutter curtain is not in contact with the metal lower frame in a manner that does not form a linear through gap in the indoor / outdoor direction. They are close to each other and inherently have a predetermined fire prevention performance.

However, in order to ensure a longer evacuation time and to prevent the spread of fire as much as possible, it is desirable to maintain the fireproof performance for a longer time. The present inventors considered improving the fireproof performance of the window shutter by improving the fireproof performance of the side portion (vertical frame) of the window opening closed by the window shutter.

Patent Document 1 discloses a fireproof structure in a composite sash provided with a fireproof heat insulating material, but does not disclose any window shutter.
JP2004-169453

An object of the present invention is to improve the fire prevention performance of a vertical frame of a window shutter.

The technical means adopted by the present invention are:
It is a fire prevention structure of a vertical frame of a window shutter installed on the outdoor side of the window device,
The vertical frame of the window shutter and the vertical frame of the window device are provided with mutually facing surface portions, and a space extending in the height direction is formed between the surface portions, and the space extends in the height direction. A thermal expansion refractory member is provided,
It is a fire prevention structure of the vertical frame of the window shutter.

In one aspect, the vertical frame of the window device and the vertical frame of the window shutter have a part facing the outdoor space and a part facing the opening closed by the shutter curtain when the window shutter is fully closed. Prepared,
The mutually facing surface portions are located between the outdoor space and the opening,
In either one or both of the surface portions, by restricting the communication between the outdoor space and the opening when the window shutter is fully closed by forming a projecting piece that covers the entire height of the gap between the surface portions,
A space extending between the projecting pieces and extending in the height direction is formed between the surface portions, and the thermal expansion refractory member is provided in the space over the height direction.

  In the present invention, since a thermal expansion fireproof member is provided across the height direction between the vertical frame of the window shutter and the vertical frame of the window device, when a fire occurs on the outdoor side or the indoor side, Even if the vertical frame of the window shutter and / or the vertical frame of the window device is deformed due to the influence and a gap is generated between the opposing surfaces, the thermal expansion refractory member expanded by the heat at the time of fire closes the gap, Preventing disadvantageous gaps in fire prevention.

It is the schematic front view and side view of a window shutter apparatus. It is a longitudinal cross-sectional view of a window shutter apparatus. It is a cross-sectional view of a window shutter device. FIG. 4 is a partially enlarged view of FIG. 3. It is a fragmentary longitudinal cross-section which shows the downward part of a window shutter apparatus (at the time of opening part opening). It is sectional drawing which shows the vertical frame (guide rail + guide rail base frame) of a window shutter, and the vertical frame of a window apparatus. It is a figure (screw is abbreviate | omitted) which shows the state which the vertical frame deform | transformed from the state of FIG. 6, and the thermal expansion fireproof member foamed. It is a figure (screw is abbreviate | omitted) which shows the state which the vertical frame of the window shutter which is not equipped with a thermal expansion fireproof member and the vertical frame of a window apparatus deform | transformed.

In FIG. 1, the left figure is a front view of the window shutter device viewed from the outdoor side, and the right figure is a side view of the window shutter device. FIG. 2 is a longitudinal sectional view of the window shutter device, and the window shutter device is provided on the outdoor side of the window device installed in the window opening of the building. The window shutter device is located above the window opening and is mounted on the outer wall W in a take-out manner. The window shutter device is positioned on both sides in the width direction of the window opening and a sash frame (a vertical frame described later). 13) Left and right guide rail base frames 2 attached in a take-out manner, left and right guide rails 3 supported by the left and right guide rail base frames 2, and a winding shaft 4 provided in the shutter case 1; The upper end is connected to the winding shaft 4, and the both ends in the width direction are moved up and down while being guided by the guide rail 3 so that the outdoor portion of the window opening is moved. A shutter curtain 5 that opens and closes, and a lower frame (water draining plate) 6 that is positioned below the window opening and is attached to a sash frame (lower frame 12 described later) of the window device in a take-out manner. In the present specification, the expressions “outside of room” and “inside of room” mean not only the actual outside of room and inside of room but also used to specify the relative position of components. Please note that.

The guide rail 3 is a long member extending perpendicularly to the height direction of the window opening, and is seen in plan view from the side 30, the side 31 positioned on the outdoor side with respect to the side 30, and the bottom 32. It has a substantially U-shape. A guide groove is formed between the opposing sides 30 and 31 to receive both ends in the width direction of the shutter curtain 5 and guide it in the vertical direction. The guide rail 3 has a height corresponding to the overall height of the opening, and extends vertically from the upper side 60 of the lower frame 6 until reaching the shutter case 1. The upper end portion of the guide rail 3 is formed in an expanded shape and extends into the lower portion of the shutter case 1. As shown in FIG. 6, a mounting piece 33 is formed so as to extend from the side 30 of the guide rail 3 toward the indoor side, and the bottom of the side 31 extends beyond the base 32 and extends. An attachment piece 34 is formed on a bent side 310 formed by bending the front end of the portion toward the indoor side.

The guide rail base frame 2 is formed of an aluminum mold, is a long member extending perpendicularly to the height direction of the window opening, has a height corresponding to the entire height of the opening, and has an upper side 60 of the lower frame 6. To the shutter case 1 to extend vertically. As shown in FIG. 6, the guide rail base frame 2 is perpendicular to the indoor side found side 20 from the indoor side found side 20 and one end of the indoor side found side 20 (side closer to the opening B). A room-side expected side 21 extending to the interior side, and an outdoor-side expected side 22 extending perpendicularly to the room-side found side 20 from the other end (the side far from the opening B) of the room-side found side 20. Yes. The indoor side expected side 21 faces the opening B, and the outdoor side expected side 22 faces the outdoor space A.

Mounting pieces 23 and 24 to be attached to the mounting pieces 33 and 34 of the guide rail 3 are formed at the tip portions of the indoor side expected side 21 and the outdoor side expected side 22, and the mounting pieces 33 of the guide rail 3 are formed. , 34 are attached to the attachment pieces 23, 24 of the guide rail base frame 2, respectively, so that the guide rail 3 is attached to the distal end side of the guide rail base frame 2. In the illustrated embodiment, the mounting piece 34 of the guide rail 3 and the mounting piece 34 of the guide rail base frame 2 are in a state in which the mounting piece 34 of the guide rail 3 is slidably locked to the mounting piece 24 of the guide rail base frame 2 from the opening B side. The mounting pieces 23 are brought into contact with each other and overlapped with each other and fixed with screws 35.

As shown in FIGS. 4 and 6, a reinforcing plate member 7 is provided along the inner wall in the internal space of the guide rail 3 to improve the fire resistance performance of the guide rail 3 formed of an aluminum mold. The reinforcing plate 7 is a long member that is formed of a metal plate having a higher melting point than aluminum, such as a steel plate, and extends perpendicularly to the height direction of the window opening. As shown in FIG. 4, the inner surface of the side 30 of the guide rail 3 accommodates a flame-retardant thermal expansion refractory member 8 that is positioned on the opening side of the internal space and extends in the height direction.

As shown in FIG. 1, the shutter curtain 5 is formed by connecting long plate-like slats 50 having a predetermined height and extending in the opening width direction so as to be rotatable in the height direction. . An upper end of the shutter curtain 5 is connected to the winding shaft 4, and a seat plate 51 is provided at the lower end portion of the shutter curtain 5. In FIG. 2, the upper seat plate 51 indicates the height position when the window opening is fully opened, and the lower seat plate 51 indicates the height position when the window opening is fully closed. When the window opening is fully open, the shutter curtain 5 is wound around the winding shaft 4. A stopper 52 provided on the outdoor side of the seat plate 51 contacts the lintel 52A above the opening. When the window opening is fully closed, the lower end of the seat plate 51 contacts the bottom 62 of the recess 600 of the lower frame 6 (see FIG. 2). The slat 50 has a width dimension such that both ends in the length direction extend into the internal space of the guide rail 3, and when the shutter curtain 5 is raised and lowered and when the window opening is fully closed, both end portions in the width direction of the slat 50 are provided. Is received in the internal space of the guide rail 3.

As shown in FIG. 2, the seat plate 51 includes a long and vertical plate-like portion 510 extending in the width direction of the window opening, and the upper end of the plate-like portion 510 is engaged with the lower end of the slat 50 directly above. A mating engaging portion 511 is integrally formed, and a lower end portion of the plate-like portion 510 is curved inward to form an abutting portion 512. An indoor side piece 513 extending in the width direction of the plate-like portion 510 is formed in the lower half of the plate-like portion 510 of the seat plate 51. The indoor side piece 513 has an L shape in side view from a first piece that extends horizontally from the indoor side surface toward the indoor side and a second piece that hangs down from the tip of the first piece. As shown in FIG. 4, both end portions of the indoor side piece 513 in the length direction (length direction of the seat plate 51) are cut out so as to be received in the internal space of the guide rail 3. A pocket portion is formed in the indoor side surface portion of the plate-like portion 510 so as to be positioned below the indoor side piece 513. In one aspect, the pocket part accommodates a flame-retardant thermal expansion fire-resistant member (not shown) extending in the length direction of the seat plate 51. When the shutter is fully closed, the latch 53 protruding from the end portion in the length direction of the seat plate 51 is locked by being latched to a latch hook 54 provided on the bottom side of the guide rail 3.

The lower frame 6 of the window shutter is a long frame extending horizontally in the width direction of the opening, and extends below the guide rail base frame 2 and the guide rail 3 beyond the entire width of the window opening. . As shown in FIG. 5, the lower frame 6 includes a hollow indoor side portion having an upper side 60 that forms a draining surface, and a recessed portion 600 formed on the outdoor side with respect to the hollow indoor side portion. Have. The recess 600 is located immediately below the lifting path of the shutter curtain 5 and reaches the lower part of the guide rail 3 beyond the entire width of the window opening. As shown in FIG. 2, the lower portion of the seat plate 51 at the lower end of the shutter curtain 5 is received in the recess 600 when the window opening is fully closed.

The lower frame 6 includes an upper side 60 that extends gently downward toward the outdoor side, an indoor vertical side 61 that hangs down from the tip of the upper side 60, and a lower side of the indoor vertical side 61 that gradually extends from the lower end to the outdoor side. A bottom 62 extending in a downwardly inclined manner, an outdoor vertical side 63 rising vertically from an outdoor front end of the bottom 62, a lower side 64 extending horizontally from the lower end of the indoor vertical side 61 toward the indoor side, and an upper side 60 And a rear side 65 that connects the indoor side end portions of the lower side 64 and a mounting piece 66 that extends from the rear side 65 to the indoor side. The upper part of the space between the indoor vertical side 61 and the outdoor vertical side 63 is open, and a recess 600 is formed from the outdoor vertical side 63, the indoor vertical side 61, and the bottom 62. ing. A hollow indoor side portion is formed from the upper side 60, the indoor side vertical side 61, the lower side 64, and the rear side 65. The rising dimension of the outdoor vertical side 63 is larger than the rising dimension of the indoor vertical side 61, that is, the height position of the upper side 60 of the indoor hollow portion is higher than the height position of the upper end of the outdoor vertical side 63. It is in a low position. As shown in FIGS. 2 and 5, the lower ends of the guide rail base frame 2 and the guide rail 3 extend below the upper end of the outdoor vertical side 63 and reach the upper side 60.

A reinforcing plate 9 is provided on the lower frame 6. The reinforcing plate 9 is made of a metal plate having a higher melting point than aluminum, for example, a steel plate. In the present embodiment, a plurality of reinforcing plate members 9 are arranged at intervals in the length direction (opening width direction) of the lower frame 6, but the reinforcement plate material 9 is reinforced over the entire length of the lower frame 6. A plate material may be provided.

As shown in FIG. 5, the reinforcing plate 9 includes a bottom 90 extending horizontally along the bottom surface 62 of the lower frame 6 and the lower surface of the lower side 64 in the expected direction (inside / outside direction) of the lower frame 6, and the outdoor side of the bottom 90 The outdoor vertical side 91 that extends vertically from the end along the outdoor vertical side 63 of the lower frame 6 and that is positioned on the indoor side of the outdoor vertical side, and the indoor side end of the base 90 on the lower frame 6. And a room-side vertical side 92 extending in a rising shape along the lower vertical part of the rear side 65. The height dimension of the outdoor vertical side 91 is larger than the height dimension of the indoor vertical side 92. The indoor side half of the bottom side 90 of the reinforcing plate 9 is in contact with the lower surface of the lower side 64 of the lower frame 6. A hole for a screw 93 is formed in the indoor vertical side 92, and the indoor vertical side 92 abuts on the indoor side surface of the lower vertical portion of the rear side 65 of the lower frame 6 and is connected by the screw 93. Has been. As shown in FIG. 3, a cover 10 having a shape corresponding to the side shape of the lower frame 6 is attached to both ends in the length direction of the lower frame 6.

The window device includes a quadruple sash frame including an upper frame 11, a lower frame 12, and left and right vertical frames 13. The vertical frame 13 of the window device is provided at the left and right ends of the window opening and extends in the height direction of the window opening. In the present embodiment, the upper and lower ends of the vertical frame 13 reach the upper end and the lower end of the quadrilateral sash frame of the window device, respectively, and have almost the same height as the guide rail base frame 2.

As shown in FIG. 6, the vertical frame 13 is formed in a substantially square shape in sectional view from the outdoor side finding side 130, the indoor side finding side 131, the outdoor side looking side 132, and the indoor side looking side 133. It is the hollow member made. The cross-sectional shape of the vertical frame 13 is not limited, and may be a solid member. A projecting piece 25 extending in the height direction is formed on the indoor side surface of the indoor side finding edge 20 of the guide rail base frame 2. In the illustrated embodiment, a total of four projecting pieces 25 are formed at both ends in the width direction of the indoor side finding side 20 (extension portions of the indoor side expected side 21 and the outdoor side expected side 22) and two central parts. Yes.

The guide rail base frame 2 has the indoor-side found side 20 opposed to the outdoor-side found side 130 of the vertical frame 13 of the window device, and the tip surface of the projecting piece 25 is directed to the outdoor-side found side 130 of the vertical frame 13. The indoor side finding side 20 and the outdoor side finding side 130 are connected to the vertical frame 13 of the window device by connecting the indoor side finding side 20 and the outdoor side finding side 130 with a plurality of screws 14 at intervals in the height direction. It has been. In the illustrated embodiment, as shown in FIG. 4, the screw 14 is provided between the intermediate projecting pieces 25.

As shown in FIG. 6, in the state where the guide rail base frame 2 is attached to the vertical frame 13 of the window device, the surface of the indoor side finding edge 20 of the guide rail base frame 2 and the indoor side of the vertical frame 13 of the window device. The faces of the finding side 130 are opposed to each other by contacting with each other via the projecting pieces 25, and a gap S extending in the height direction is formed between the projecting pieces 25. In the illustrated embodiment, three gaps S extending in the height direction are formed. In addition, the number of the protrusions 25 and the number of the gaps S are not limited to the illustrated mode.

In the three gaps S, a flame-retardant or non-flammable thermal expansion refractory member 15 is provided in a portion (close to the projecting piece 25 on the outdoor space A side) located on the outdoor space A side. It is. In addition, the position where the thermal expansion refractory member 15 is provided is not limited to the illustrated mode, and the thermal expansion refractory member 15 may be disposed at a position closer to the indoor side than the illustrated position. The thermal expansion refractory member 15 is a long plate or sheet extending in the length direction (opening height direction) of the guide rail base frame 2 and the vertical frame 13. In the illustrated embodiment, the thermal expansion refractory member 15 is bonded to the indoor side finding side 20 of the guide rail base frame 2. The thermal expansion refractory member 15 is a member that expands by foaming when heated to a temperature of 150 ° C. to 250 ° C., for example. As the thermal expansion refractory member 15, for example, Fibrok (registered trademark) of Sekisui Chemical Co., Ltd. can be used. The thermal expansion refractory member 15 may be adhered to the outdoor side finding side 130 of the vertical frame 13, or simply the surface of the indoor side finding side 20 of the guide rail base frame 2 and the vertical frame 13 of the window device. You may arrange | position between the surfaces of the indoor side finding side 130. FIG. In the present embodiment, the guide rail base frame 2 of the window shutter and the vertical frame 13 of the window device have substantially the same height, and the height positions of the upper end and the lower end are also substantially the same. When the lower part of the frame 2 is stored so as to extend downward beyond the lower end of the vertical frame 13 of the window device, the lower part of the thermal expansion refractory member 15 is the indoor side finding side 20 of the guide rail base frame 2. It may be located between the lower part of the window device and the outdoor side of the lower frame 12 of the window device.

As shown in FIG. 6, the guide rail base frame 2 and the vertical frame 13 of the window device have a portion facing the outdoor space A (outdoor outer side 22 and outdoor side 132) when the window shutter is fully closed. A portion facing the opening B closed by the shutter curtain 5 (the indoor side expected side 21 and the indoor side expected side 133). The facing surfaces of the indoor side finding side 20 and the outdoor side finding side 130 facing each other extend so as to connect the outdoor space A and the opening B, and either one or both of the facing surfaces include: A projecting piece 25 that closes the gap between the surface portions over the entire height is formed, and communication between the outdoor space A and the opening B is restricted when the window shutter is fully closed. A gap S extending in the height direction is formed between the projecting pieces 25, and the thermal expansion refractory member 15 is provided in the gap S across the height direction.

When a fire occurs on the outdoor side or the indoor side, the guide rail base frame 2 and / or the vertical frame 13 of the window device is deformed due to heat (in particular, the guide rail base frame 2 and the sash frame of the window device). When the deformation state is different), there may be a case where a disadvantageous fire prevention gap is generated between the indoor side found side 20 of the guide rail base frame 2 and the outdoor side found side 130 of the vertical frame 13 of the window device. Yes (see FIG. 8). In this embodiment, the thermal expansion refractory member 15 is provided in the height direction between the indoor side found side 20 of the guide rail base frame 2 and the outdoor side found side 130 of the vertical frame 13 of the window device. As a result of the heat at the time of the fire, a gap is formed between the indoor-side found side 20 of the guide rail base frame 2 and / or the outdoor-side found side 130 of the vertical frame 13 of the window device. Even if it deform | transforms into, the communication between the outdoor space A and the opening part B is prevented because the thermal expansion refractory member 15 'expanded by the heat at the time of fire closes the gap.

As shown in FIG. 2, the lower frame 6 is connected to the lower end portion of the guide rail base frame 2 and the lower frame 12 of the window device. A locked portion 120 of the mounting piece 66 of the lower frame 6 is formed on the lower frame 12 of the window device, and the mounting piece 66 of the lower frame 6 is engaged with the locked portion 120 of the lower frame 12 of the window device. The mounting piece 66 and the lower frame 12 of the window device are connected by the screw 16 in a stopped state. Note that the elements of the lower frame 6 of the window shutter device and the elements of the lower frame 12 of the window device may be brought into contact with each other and connected by screws without being engaged or engaged.

As shown in FIGS. 4 and 5, the lower frame 6 is connected to the lower end portion of the guide rail base frame 2 via a connecting plate member 17 fixed to the lower end portion of the guide rail base frame 2. The connecting plate member 17 has an L shape in a side view from the vertical piece 170 and the horizontal piece 171, and is fixed to the inner surface of the indoor side finding side 20 of the guide rail base frame 2 via the vertical piece 170 with a rivet 172. Yes. The horizontal side 171 of the connecting plate member 17 extends to the outdoor side in the vicinity of the upper side 60 of the lower frame 6. And the holes at both ends in the length direction of the lower side 64 are inserted into the screw holes on the bottom side 90 of the reinforcing plate 9 disposed at both ends in the length direction of the lower frame 6. By connecting both ends in the length direction of the lower frame 6 (upper side 60, lower side 64) together with the reinforcing plate material 9 (bottom side 90) to the lower end portion of the guide rail base frame 2 by the connecting plate material 17, the heat of the lower frame 6 is obtained. Deformation (for example, thermal deformation and drooping to the outdoor side) is prevented.

2 Guide rail foundation frame 20 Indoor side expected side 21 Indoor side expected side 22 Outdoor side expected side 25 Projection piece 3 Guide rail 13 Vertical frame 130 of window device Outdoor side expected side 132 Outdoor side expected side 133 Indoor side expected side 15 Thermal expansion refractory member

Claims (2)

It is a fire prevention structure of a vertical frame of a window shutter installed on the outdoor side of the window device,
The vertical frame of the window device and the vertical frame of the window shutter face a part facing the outdoor space, a part facing the opening closed by the shutter curtain, and the outdoor space when the window shutter is fully closed. A surface portion located between the portion and the portion facing the opening,
By connecting the surface portion of the vertical frame of the window shutter and the surface portion of the vertical frame of the window device with a screw at a portion that does not face the outdoor space in a state where communication between the outdoor space and the opening portion is restricted. The vertical frame of the window shutter is attached to the vertical frame of the window device,
Wherein the surface portion of the vertical frame of the face portion and the window device of the vertical frame of the window shutter is provided with a portion spaced opposite each other, between said spaced opposed portions are voids which extend in the height direction is formed, A thermal expansion refractory member is provided in the gap across the height direction,
Fireproof structure of the vertical frame of the window shutter. Wherein the one or both of the surface portion of the vertical frame and the surface of the vertical frame of the window shutter the window unit is formed with a butt portion,
Wherein positioned between collision portion being the gap is formed, the thermal expansion refractory member over the height direction in the gap is provided,
The fire prevention structure of the vertical frame of the window shutter of Claim 1.

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