JP2019206799A - Shutter apparatus - Google Patents

Abstract

To provide a shutter apparatus that can prevent flaming of a combustible element in a case through the opening of a bracket surface during a fire.SOLUTION: A lock piece 101 for locking a side cap 8 is cut up in the surface 10 of a bracket 1, an opening 1012 is formed through the cutting-up in the surface 10, a closing machine M including a combustible is positioned near the opening 1012 in a shutter case 7, and closing plates (a second part 1911 of a first vertical piece 191) for closing the opening 1012 near the closing machine M are provided to the surface 10 of the bracket 1.SELECTED DRAWING: Figure 12

Description

The present invention relates to a shutter device.

The shutter device inherently closes the opening of the building to partition the outdoor side space and the indoor side section, but also prevents a gap or opening that connects the outdoor side space and the indoor side section in the event of a fire. Fire prevention performance is required. Patent Document 1 proposes a window shutter that prevents a flame from passing between a side member of a case main body and an inspection plate in a state where a side cap is melted and dropped in a fire or the like.

However, depending on the shutter device, one or a plurality of openings may be formed in the bracket. Such an opening can be formed in the process of cutting and forming a locking piece for attaching a predetermined element to the bracket, for example. On the other hand, a combustible element may be present in the shutter case. In a typical example, a switch for electrically driving a shutter curtain partially includes a resin material that is a combustible element. Thus, in the case where the opening is formed in the bracket, for example, in the event of a fire, after the side cap attached to the bracket burns off, the combustible element inside the shutter case is emitted through the opening formed in the bracket. There is a risk of flame. On the contrary, there is a possibility that a flame generated inside the shutter case may come out of the shutter case from the opening.
Patent No. 5749129

In the shutter device, in the event of a fire, it is possible to prevent a combustible element inside the shutter case from flaming through an opening in the bracket surface portion or prevent a flame generated inside the shutter case from coming out of the shutter case from the opening. It is the purpose.

The technical means adopted by the present invention are:
Shutter curtains,
A winding shaft to which a shutter curtain is connected;
A shutter case that houses the winding shaft and the shutter curtain wound around the winding shaft;
Left and right brackets that are located at both ends in the width direction of the shutter case and support both ends in the length direction of the winding shaft,
With
An opening is formed in the surface portion of the bracket, and in the shutter case, there is a combustible element located in the vicinity of the opening formed in the surface portion of the bracket,
On the surface portion of the bracket, a closing plate material that closes an opening in the vicinity of the combustible element is provided.
Shutter device.

In one aspect, a side cap is attached to the bracket,
A locking piece for locking the side cap is formed by cutting and raising the surface portion of the bracket.
The opening is an opening formed in the surface portion by the cut and raised formation.

In one aspect, the shutter device is an electric shutter device and the combustible element is a switch.
In the case where openings are formed in both the left and right brackets, it is only necessary that at least the opening formed in the drive side bracket and close to the switch is closed by the closing plate.
In the embodiment to be described later, two locking pieces are cut and raised on the left and right brackets, and two upper and lower openings are formed on each bracket, but the lower opening of one bracket (drive side bracket) Only is closed by the closing plate.

In one aspect, the opening / closing machine is supported by a mounting base fixed to a surface portion of one bracket,
The closing plate is formed from the mounting base.
By constructing the closing plate from the mounting base, the opening is closed by the closing plate (mounting base) at the same time that the mounting base of the switch is attached to the bracket. Installation can be performed in one step, and workability is good.

  In the present invention, an opening is formed in the surface portion of the bracket, and a combustible element exists in the shutter case in the vicinity of the opening formed in the surface portion of the bracket. By providing a closing plate that closes the opening in the vicinity of the combustible element, a flame comes out through the opening in the surface of the bracket (for example, the flame of the combustible element ignited in the shutter case comes out or is generated outside) Flames igniting combustible elements in the shutter case).

  Therefore, in the event of a fire, after the side cap attached to the bracket burns off, the flame generated outside ignites the combustible element in the shutter case through the opening formed in the bracket, and the combustible element inside the shutter case Prevents the flame from burning, or prevents the flame of the combustible element ignited in the shutter case from coming out.

It is a schematic front view of a window shutter apparatus. It is a longitudinal cross-sectional view of a window shutter apparatus. FIG. 3 is a partially enlarged view of FIG. 2. It is a cross-sectional view of a window shutter device, the left side shows a cross-section at a height position above the window opening, and the right side shows a cross-section at the height position of the window opening. It is the cross-sectional view of the upper part of one guide rail and guide rail base frame of the window shutter apparatus shown in FIG. 4, and is a view seen from the lower side to the upper side. It is a figure which shows the lower frame in FIG. 2, and is a top view, a rear view, and a side view from the top. It is a front view which shows the inside of the upper part of a window shutter apparatus (a winding shaft is abbreviate | omitted). (A) is the AA line longitudinal cross-sectional view of FIG. 3, FIG. 4, (B) is the BB line longitudinal cross-sectional view of FIG. 3, FIG. The left figure is a front view of the bracket, and the right figure is a side view of the bracket as seen from the inside. It is a figure which shows the mounting base of an opening / closing machine. The left figure is a side view of the upper part of the bracket and the guide rail base frame as seen from the outside, and the right figure is a partially cutaway front view. The upper figure is a side view of the upper part of the bracket and the guide rail base frame as viewed from the inside, and the lower figure is a cross-sectional view of the upper part of the guide rail base frame. It is a figure which shows a cover plate. It is a figure explaining a guide rail base frame regulation structure (for aluminum sashes). It is a figure explaining a guide rail base frame control structure (for resin sashes). It is a figure which shows a side cap. It is a figure which shows a side cap main-body part. It is a figure which shows a side cap division part. (A) is the longitudinal cross-sectional view of the AA line of FIG. 16, (B) is the vertical cross-sectional view of the BB line of FIG. 16, (C) is the longitudinal cross-sectional view of the CC line of FIG. The right figure is a diagram showing the engagement state between the projecting piece at the upper end of the side cap dividing part and the side cap body part, and the left figure is the connection state between the projecting piece at the lower end part of the side cap body part and the bracket. FIG. It is a figure which shows the engagement state of the latching protrusion formed in the rear end of the lower edge part of the side cap division | segmentation part, and the latching receiving part formed in the front end and lower end of the rear part of the side cap main-body part. The left figure is a side view seen from the inside, and the right figure is a sectional view seen from the rear. It is a side view of the shutter case of a window shutter apparatus (retrofitting). It is a cross-sectional view of a window shutter device (advancing), the left side shows a cross-section at a height position above the window opening, and the right side shows a cross-section at the height position of the window opening. FIG. 24 is a cross-sectional view of the upper portion of one guide rail and the guide rail base frame of the window shutter device shown in FIG. 23, and is a view seen from the lower side toward the upper side. (A) is the BB sectional drawing of (B), (B) is a figure similar to FIG. It is a longitudinal cross-sectional view of the lower part of a window shutter apparatus (advancing). It is a figure which shows the lower frame in FIG. 25, and is a top view, a rear view, and a side view from the top. It is a side view of the shutter case of a window shutter (advancing). It is a figure which shows the process of removing the shutter case lower board at the time of a maintenance. It is a figure which shows the case where the shutter case of a window shutter apparatus is half eaves storage.

1 is a front view of a window shutter device in a fully closed position as viewed from the outside, FIG. 2 is a longitudinal sectional view of the window shutter device, FIG. 3 is a partially enlarged view of FIG. 2, and FIG. It is a figure (the left side is the height position above the window opening, and the right side is the height position of the window opening). The window shutter device is provided on the outdoor side of a window device (a window sash frame S is shown in FIGS. 2 and 4) installed in a window opening of a building. As a window shutter attachment mode, when the shutter is retrofitted (when the shutter is attached after finishing the outer wall W, as shown in FIGS. 1 to 5, 7, and 22) and when the shutter is advanced ( It should be noted that there is a case where the outer wall W is finished after the shutter is attached to the base element W ′ (shown in FIGS. 23 to 25 and FIG. 27). In this embodiment, in the retrofit specification, the window sash frame S is an aluminum sash (see FIGS. 2 and 4), and in the pre-installation specification, the window sash frame S is a resin sash (see FIGS. 23, 25, etc.). However, the aluminum sash may be a front-end specification, or the resin sash may be a rear-end specification. In this specification, the side on which the window shutter device is attached is generically called a “casing”, and the housing includes an outer wall W, a base element W ′, a window sash frame S, and the like.

The window shutter device is located above the window opening, and has left and right brackets 1 attached to the housing (outer wall W) in a take-out manner, a winding shaft 2 supported between the left and right brackets 1, and an outer wall W. Left and right guide rail base frames 3 attached to the left and right guide rail base frames 3, left and right guide rails 4 supported by the left and right guide rail base frames 3, and a shutter curtain 5 whose upper end is connected to the winding shaft 2. And a shutter curtain 5 that opens and closes the outdoor side portion of the window opening by being lifted and unwound on the winding shaft 2 while being guided by the guide rail 4, and the window opening. And a lower frame (draining plate) 6 attached to the housing (outer wall W) in a take-out shape. A shutter case 7 is provided above the window opening so as to accommodate the shutter curtain 5 wound around the left and right brackets 1 and the winding shaft 2, and is located at both ends in the width direction of the shutter case 7. The side cap 8 is attached to the bracket 1. As will be described later, in the present embodiment, the side cap 8 is composed of a main body portion 8 ′ and a split portion 9 that can be attached to and detached from the main body portion 8 ′. However, the side cap 8 is integrally formed from one member. It may be formed.

As shown in FIG. 9, the bracket 1 includes a vertical surface portion 10, an upper surface 11 formed along the inclined upper edge of the surface portion 10, and a front edge (concave shape in a side view) of the surface portion 10. The upper front surface 12, the intermediate front surface 13, the lower front surface 14, the front lower surface 15 formed along the lower edge of the surface portion 10, the intermediate lower surface 16, the proximal end lower surface 17, and the rear edge of the surface portion 10. And the rear surface 18 formed in the above manner. The intermediate front surface 13 is a bottom surface of the concave portion at the front edge of the bracket 1, and a horizontal surface 140 formed at the upper end of the lower front surface 14 forms the lower surface of the concave portion.

As shown in FIGS. 3 and 4, the bracket 1 is provided in a take-out shape with respect to the outer wall W by attaching the rear surface 18 to a hook metal fitting 21 fixed to the outer wall W. The hook 21 is formed with a connecting piece 210 extending in parallel to the surface portion 10 of the bracket 1, and the surface portion 10 of the bracket 1 and the connecting piece 210 are fixed by screws 211 (see FIG. 3 and omitted in FIG. 4). Therefore, it is made to counter the blowing load from below.

An upper locking piece 100 and a lower locking piece 101 are formed on the outer surface of the surface portion 10 of the bracket 1. The upper locking piece 100 has an L shape in sectional view from the horizontal piece 1000 and the vertical rising piece 1001, and the lower locking piece 101 has an inverted L shape in sectional view from the horizontal piece 1010 and the hanging piece 1011. . The upper locking piece 100 and the lower locking piece 101 are cut and raised pieces formed by cutting and raising a part of the surface portion 10, and the upper locking piece 100 and the lower locking piece 101 are formed on the surface portion 10. Openings 1002 and 1012 formed at the time of cutting and raising are formed. The openings 1002 and 1012 are formed in the vicinity of the upper end and the lower end of the surface portion 10 of the bracket 1 and at the approximate center of the surface portion 10 of the bracket 1 in the front-rear direction.

A mounting base 19 that supports the opening / closing machine M is fixed at a position near the rear side of the inner surface of the surface portion 10 of the bracket 1 on the driving side. As shown in FIG. 10, the mount 19 includes a rectangular base 190, a first vertical piece 191 rising from the first side of the base 190, and a second vertical piece 192 rising from the second side of the base 190. . The first vertical piece 191 is a horizontal rectangular vertical surface from a first portion 1910 rising from the first side of the base 190 and a second portion 1911 extending beyond the first side of the base 190. The mounting base 19 is fixed to the inner surface of the surface portion 10 of the bracket 1 via the first vertical piece 191, and one end side of the opening / closing machine M is attached to the second vertical piece 192.

As described above, the surface 10 of the bracket 1 is formed by cutting and forming the locking piece (the lower locking piece 101) for locking the side cap 8, thereby forming the opening 1012 in the surface 10. In the shutter case, the opening / closing machine M is fixed to the surface portion 10 of the bracket 1 on the driving side, and the opening 1012 formed in the surface portion 10 is close to the opening / closing device M supported by the surface portion 10. In position. The switch M includes a resin that is a combustible element as a part of the constituent elements, and the switch M has grease between the mechanical elements, so that the surface portion 10 of the bracket 1 on the drive side is provided. A combustible element will be present in the vicinity of the opening 1012.

The second portion 1911 of the first vertical piece 191 of the mounting base 19 is positioned so as to cover the portion where the lower locking piece 101 is formed from the inner surface of the surface portion 10, and the surface portion of the second portion 1911 is the opening 1012. The opening 1012 in the vicinity of the lower locking piece 101 is blocked by abutting against the peripheral surface portion of the. The opening 1012 (opening in the vicinity of the combustible element) of the surface 10 of the bracket 1 on the driving side is closed by the second portion 1911 (blocking plate member) of the first vertical piece 191 of the mounting base 19 provided on the surface 10. ing. Therefore, it is possible to prevent the resin material of the opening / closing machine M from flaming through the opening 1012 formed in the surface portion 10 of the bracket 1 after the side cap 8 burns off.

The guide rail base frame 3 is a long member extending perpendicularly to the height direction of the window opening, and as shown in FIG. 5, a side 30 extending in the expected direction so as to be separated from the outer wall W, and a side 30 A locking portion 31 that is locked to the tip, a tip-side finding piece 32 that extends in the finding direction at the tip-side portion 300 of the side 30, and a connecting piece 33 that extends from the tip-side finding piece 32 in the see-through direction. The first base end side finding side 34 extending on the base end side of the side edge 30 on the opposite side to the front end side finding piece 32 and the side opposite to the first base end side finding side 34 (the front end side finding piece 32 and And a second base end side 35 extending to the same side. A stopper 39 (see FIGS. 2 and 11) is attached to the upper end of the guide rail base frame 3 so that a block-like contact portion 52 provided at the lower end portion of the shutter curtain 5 contacts when the shutter curtain 5 is fully opened. .

As shown in FIGS. 4 and 5, the guide rail base frame 3 is configured such that the first base end side 34 is screwed with the screw 36 in a state where the first base end side 34 is in contact with the outer wall W. It is attached by being fixed to the outer wall W. A flame-retardant or non-flammable thermal expansion refractory member 37 extends in the height direction on the back surface of the second base end side finding side 35 (the position where the thermal expansion refractory member 37 is provided is a part of the height direction). For example, it may be only the lower part or the total height). In a state where the first base end side finding side 34 is in contact with the outer wall W, the second base end side finding side 35 is separated from and opposed to the outer wall W. A gap (space) is formed between the back surface and the outer wall W, and the thermal expansion refractory member 37 provided on the back surface of the second base end side finding side 35 is located in the space. A watertight member 38 is provided on the back surface of the second base end side finding side 35 so as to be located outside the thermal expansion refractory member 37 over the height direction. The gap with W is closed in the height direction. The watertight member 38 (in a state where the guide rail base frame 3 is attached to the outer wall W) has a thickness larger than that of the thermal expansion refractory member 37 before foaming, and the back surface of the second base end side finding side 35 and A gap (space) is formed between the outer walls W to accommodate the thermally expanded refractory member 37 in a foamable state.

The thermal expansion refractory member 37 is a long plate or sheet extending in the height direction. When the thermal expansion refractory member 37 is heated to a predetermined temperature or more in a fire in a fully closed state of the window opening, The expansion refractory member 37 expands and expands, closes a gap that can be formed between the proximal end portion of the side 30 and the outer wall W along the thermal deformation of the guide rail base frame 3 in the height direction, and guides The fire around the rail base frame 3 and the outer wall W is prevented, and the fire resistance performance of the base end side portion of the guide rail base frame 3 is ensured. The watertight member 38 is typically a watertight rubber formed from a rubber material, and the material of such a watertight member is well known to those skilled in the art, and thus a detailed description thereof is omitted. The watertight member 38 prevents rainwater from entering the gap between the second base-side finding side 35 and the outer wall W and prevents the thermal expansion refractory member 37 from coming into direct contact with water as much as possible. Yes.

The guide rail 4 is a long member extending perpendicularly to the height direction of the window opening, and is close to the side (outdoor side finding side) 40 on the side far from the housing (outer wall W) and the housing (outer wall W). It has a substantially U-shape in plan view from the side 41 on the side and the base 42, and receives both ends in the width direction of the shutter curtain 5 between the opposing sides 40 and 41 and guides it in the vertical direction. A guide groove 45 is formed. More specifically, as shown in FIG. 5, front end side expectation portions 400 and 410 are projected from the front ends of the side edges 40 and 41 so as to face the front end side expectation portions 400 and 410. (Not shown) are provided opposite to each other, and an opening for the guide groove 45 is formed between the silencers. The guide rail 4 has a height corresponding to the overall height of the opening, and extends vertically from the lower end (bottom side 62) of the lower frame 6 until it reaches the shutter case 7. Upper end portions 401, 411 of the side edges 40, 41 of the guide rail 4 are formed in an expanded shape and extend into the lower portion of the shutter case 7.

On the bottom side of the guide rail 4, a locking portion 43 that is locked to the locking portion 31 of the guide rail base frame 3 and a connecting piece 44 that is connected to the connecting piece 33 of the guide rail base frame 3 are integrally formed. More specifically, the base end side of the side edge 41 is formed with an extending side 41 ′ extending beyond the bottom edge 42 and extending away from the window opening, and the bottom edge 42 of the guide rail 4 has a housing (outer wall). W) An outer base 42 ′ is formed so as to be inclined in a plan view in a direction away from the window opening, and the outer base 42 ′ supports the tip side portion of the extended side 41 ′ of the side 41. doing. A locking portion 43 is integrally formed at the tip of the extending side 41 ′. A connecting piece 44 that is positioned closer to the bottom side 42 and extends toward the housing (outer wall W) is integrally formed with the extending side 41 ′. The guide rail 4 connected to and supported by the guide rail base frame 3 is well known to those skilled in the art, and the connection between the guide rail base frame 3 and the guide rail 4 is not limited to the illustrated mode.

The shutter curtain 5 is formed by vertically connecting long slats 50 extending in the opening width direction, and block-shaped contact portions 52 are provided at both ends in the width direction of the seat plate 51 at the lower end. . The shutter curtain 5 moves up and down while opening and closing the opening while being guided by the groove of the guide rail 4 at both ends in the width direction of the slat 50. When the opening is fully opened, the contact portion 52 provided on the seat plate 51 at the lower end of the shutter curtain 5 contacts the stopper 39 provided at the upper end portion of the guide rail base frame 3. When the opening is fully closed, the lower part of the seat plate 51 at the lower end of the shutter curtain 5 is received in a crisp shape in the recess 600 on the front end side of the lower frame 6.

In this embodiment, the guide rail base frame 3 is fixed to the outer wall W (housing) on the base end side, and is connected to the lower frame 6 with screws (not shown) at the lower end, but is guided by wind pressure. If the front end side of the rail base frame 3 is deformed outward, the slat 50 may come out of the groove of the guide rail 4. In the present embodiment, a base frame regulating structure that regulates deformation of the upper end portion of the guide rail base frame 3 at the lower end portion of the bracket 1 in order to restrict the outward deformation of the guide rail base frame 3 and improve the wind pressure resistance. Was provided. The base frame restricting structure is provided at the lower end of the bracket 1 and extends below the upper end of the guide rail base frame 3, and the base frame restricting piece provided at the front end side of the guide rail base frame 3. The contact portion of the 170 (the tip side portion 300, the connecting piece 44) and the base frame restricting piece 170 are in contact with the contact portion, thereby restricting the horizontal movement of the guide rail base frame 3 and the guide rail 4. doing. In this embodiment, two types of guide rail base frames 3 for aluminum sash and resin sash are used. FIG. 14 shows a base frame restricting structure for aluminum sash, and FIG. 15 shows a base frame restricting structure for resin sash. .

In the embodiment shown in FIG. 14, a drooping base frame regulating piece 170 is formed at the distal end of the base-side lower surface 17 at the lower end portion of the bracket 1. The lower end of the bracket 1 and the upper end of the guide rail base frame 3 are in contact with each other, and the base frame restricting piece 170 has a front end side portion 300 on the side 30 of the guide rail base frame 3, a connecting piece 33, and a front end side finding piece 32. Is located in a U-shaped groove portion in plan view and is perpendicular to the distal end portion and the connecting piece 33 and parallel to the distal end finding piece 32. One end of the base frame regulating piece 170 in the width direction is close to the front end portion 300, and the other end is close to the connecting piece 33. Actually, in a state where the guide rail base frame 3 and the guide rail 4 are connected, the connecting piece 44 of the guide rail 4 is positioned inside the connecting piece 33 of the guide rail base frame 3 (see FIG. 12). When the upper end portion of the guide rail base frame 3 is deformed so as to open outward due to wind pressure, one end in the width direction of the base frame restricting piece 170 contacts the inner surface of the connecting piece 44, Movement to the outside of the upper part of the frame 3 is restricted. The inward deformation of the upper portion of the guide rail base frame 3 can also be restricted by the base frame restriction piece 170.

In the aspect shown in FIG. 15, the base frame restricting bracket 17 ′ is attached to a predetermined position of the lower end portion of the surface portion 10 of the bracket 1, and the base frame restricting bracket 17 ′ has a hanging shape extending downward from the lower end of the bracket 1. A base frame regulating piece 170 ′ is formed. The lower end of the bracket 1 and the upper end of the guide rail base frame 3 are in contact with each other, and the base frame restricting piece 170 ′ is a tip side portion 300 of the side 30 of the guide rail base frame 3, a connecting piece 33, and a tip side finding piece. In the groove portion that is U-shaped in plan view surrounded by 32, it is positioned parallel to the tip-side finding piece 32, perpendicular to the tip-side portion and the connecting piece 33. One end in the width direction of the base frame regulating piece 170 ′ is close to the tip end portion 300, and the other end is close to the connecting piece 33. Actually, in a state where the guide rail base frame 3 and the guide rail 4 are connected, the connecting piece 44 of the guide rail 4 is positioned inside the connecting piece 33 of the guide rail base frame 3 (see FIG. 12). When an attempt is made to deform so that the upper end portion of the guide rail base frame 3 opens outward under wind pressure, one end in the width direction of the base frame restricting piece 170 ′ abuts on the inner surface of the connecting piece 44. Movement to the outside of the upper part of the base frame 3 is restricted. Inward deformation of the upper portion of the guide rail base frame 3 can also be restricted by the base frame restriction piece 170 '.

The lower end (base end side lower surface 17) of the surface portion 10 of the bracket 1 and the upper end of the guide rail base frame 3 (the upper end 30 ′ of the side 30) are included in the upper end 30 ′. The outer surface of the surface portion 10 of the bracket 1 and the outer surface of the side edge 30 of the guide rail base frame 3 are located on the same vertical plane (see FIGS. 4, 8, and 11). reference). A cover plate 20 is provided at the lower end portion of the outer surface of the surface portion 10 of the bracket 1 so as to straddle the lower end portion of the surface portion 10 of the bracket 1 and the upper end portion of the side 30 of the guide rail base frame 3. The contact portion between the base end side lower surface 17 of the surface portion 10 of the bracket 1 and the upper end 30 ′ of the side 30 of the guide rail base frame 3 is closed from the side. The cover plates 20 are provided on both the left and right sides so as to straddle the lower end portion of the left and right brackets 1 and the upper end portion of the left and right guide rail base frames 3. The cover plate 20 can block a disadvantageous fire prevention gap that can be formed at the contact portion between the lower end of the surface portion 10 of the bracket 1 and the upper end of the guide rail base frame 3.

As shown in FIG. 13, the cover plate 20 is a horizontally long plate formed of an upper edge 200 extending horizontally, a lower edge 201 extending horizontally, a vertical edge 202 on the base end side, and a vertical edge 203 on the front end side, A hole 204 for a screw 205 that fixes the cover plate 20 to the lower end portion outside the surface portion of the bracket 1 is formed in the upper half. A semicircular cutout 206 on the front end side of the upper edge 200 of the cover plate 20 is a cutout for releasing a screw for fixing the base frame regulating piece 171 ′ (see FIG. 15).

In the present embodiment, as shown in the right side of FIG. 11, the outer surface of the surface portion 10 of the bracket 1 and the outer surface of the side 30 of the guide rail base frame 3 are on the same vertical surface, and the cover plate 20 is It extends so as to straddle between the lower end portion of the outer surface of the first surface portion 10 and the upper end portion of the outer surface of the side 30 of the guide rail base frame 3. In addition, when the outer surface of the surface part 10 of the bracket 1 and the outer surface of the side 30 of the guide rail base frame 3 are not on the same vertical plane, the shape of the cover plate 20 is a cross-sectional shape along the two outer surfaces ( For example, the upper vertical surface that contacts the outer surface of the surface portion 10 of the bracket 1, the lower vertical surface that contacts the outer surface of the side 30 of the guide rail base frame 3, the lower end of the upper vertical surface, and the upper end of the lower vertical surface are connected. Intermediate horizontal plane).

The cover plate 20 covers the contact portion between the lower surface 17 of the base end side 10 of the surface portion 10 of the bracket 1 and the upper end 30 ′ of the side 30 of the guide rail base frame 3 over substantially the entire width. Is extended to the upper end portion of the guide rail 4 beyond the contact portion between the lower end of the bracket 1 and the upper end of the guide rail base frame 3, and the base side vertical edge 202 of the cover plate 20 has a casing (outer wall W). ) In the present embodiment, the front lower surface 15 of the bracket 1 is positioned below the contact portion between the proximal lower surface 17 of the surface portion 10 of the bracket 1 and the upper end 30 ′ of the side 30 of the guide rail base frame 3. The lower edge 201 of the cover plate 20 is located at substantially the same height as the front lower surface 15 of the bracket 1. As shown in FIG. 3, the lower edge 201 of the cover plate 20 is located above the lower surface of the side cap 8 (the front lower edge 85 and the rear lower edge 86). 1 is concealed by the side cap 8 attached to 1 and is not exposed to the outside.

The lower frame 6 is a long frame extending in the width direction of the opening. As shown in FIGS. 2 and 6, the lower frame 6 has an upper surface 60 extending in a downwardly inclined manner in a direction away from the outer wall W. , A drooping side 61 at the tip of the upper surface 60, a bottom side 62, a rising side 63, a base end side upper side 64 extending upward on the base end side of the upper surface 60, and a base end side lower side 65 extending downward on the base end side of the upper surface 60. And an inclined connection side 66 that connects the lower surface of the upper surface 60 and the lower side 65 on the base end side. A concave portion 600 is formed on the front end side of the lower frame 6 from a drooping side 61, a bottom side 62, and a rising side 63 at the front end of the upper surface 60. When the opening is fully closed, a lower portion of the seat plate 51 at the lower end of the shutter curtain 5 is formed. It is received in an open shape in the recess 600 on the front end side of the lower frame 6 (FIG. 2).

The base end side of the upper surface 60 of the lower frame 6 protrudes beyond the base end side upper side 64, and an upper contact portion 640 is formed, and the base end side of the connecting side 66 exceeds the base end side lower side 65. The lower contact portion 660 is formed. The tips of the upper contact portion 640 and the lower contact portion 660 are located on the same vertical plane. As shown in FIG. 2, the lower frame 6 is configured such that the base-side upper side 64 is screwed in a state in which the distal ends of the upper contact part 640 and the lower contact part 660 of the base-side upper side 64 are in contact with the outer wall W. It is attached by fixing to the outer wall W at 67.

A space is formed from the upper contact portion 640, the lower contact portion 660, and the base end side lower side 65, and a flame-retardant or non-flammable thermal expansion fire-resistant member 68 is formed on the back surface of the base end side lower side 65. 6 across the width direction. A watertight member 69 is provided across the width direction of the lower frame 6 on the back surface of the base end side upper side 64. As shown in FIG. 2, in a state where the lower frame 6 is attached to the outer wall W, the watertight member 69 is compressed between the base-side upper side 64 and the outer wall W, and the back surface of the base-side lower side 65 Between the outer wall W and the outer wall W, a gap (space) that allows foaming of the thermally expanded refractory member 68 is formed.

The thermal expansion refractory member 68 is a long plate or sheet extending in the width direction. When the thermal expansion refractory member 68 is heated to a predetermined temperature or more in a fire in a fully closed state of the window opening, the thermal expansion is performed. The refractory member 68 expands and expands, closes a gap that can be formed between the base end side portion and the outer wall W along the thermal deformation of the lower frame 6 over the width direction, and between the lower frame 6 and the outer side W. The fire prevention performance of the base end side site | part of the lower frame 6 is ensured by preventing the fire around. The watertight member 69 is typically a watertight rubber formed from a rubber material. Since the material of such a watertight member is known to those skilled in the art, a detailed description thereof will be omitted. The watertight member 69 prevents rainwater from entering the gap between the base-side upper side 64 and the outer wall W and prevents the thermal expansion refractory member 68 from coming into direct contact with water as much as possible. Further, the watertight member 69 is located at the upper end portion of the base end side upper side 64 and is located above the thermal expansion refractory member 68, and when the lower surface of the lower frame 6 is exposed to the heat of the fire from below. The thermal expansion refractory member 68 is foamed between the back surface of the base end side lower side 65 and the outer wall W, thereby preventing a flame generated outside from catching on the watertight member 69.

As shown in FIGS. 3, 22, and 27, the shutter case 7 includes an upper surface 70, an upper front surface 71, a lower front surface 72, and a lower surface 73, and has a cross-sectional shape along the outer shape of the bracket 1. ing. In this embodiment, the shutter case 7 includes an upper first portion (upper plate) 7A composed of an upper surface 70 and an upper front surface 71, and a lower second portion (lower plate) 7B composed of a lower front surface 72 and a lower surface 73. It can be divided from In the state where the shutter case 7 is installed, the lower plate 7B can be attached to and detached from the upper plate 7A connected to the housing. By removing the lower plate 7B from the upper plate 7A, the so-called winding shaft 2 or Maintenance of the switch M is performed.

The upper surface 70 extends downward in a direction away from the outer wall W, and a vertical rising side 700 is formed on the base end side. The upper surface 70 is connected to the outer wall W (housing) by a screw 701 in a state where the rising side 700 is in contact with the outer wall W. The front end side of the upper surface 70 is fixed to the upper surface 11 of the bracket 1 by a screw 702. The upper front surface 71 is a vertical surface, and is fixed to the upper front surface 12 of the bracket 1 with a fixture such as a rivet 703. At the lower end of the upper front surface 71, a “le” -shaped locked piece 710 is formed that is folded back toward the inner side (base end side or housing side).

The lower front surface 72 is a vertical surface, with a horizontal piece 720 extending toward the inside (base end side or housing side) at the upper end, a rising piece 721 rising vertically from the horizontal piece 720, and outward from the upper end of the rising piece 721. An inverted “le” -shaped locking piece 722 that is folded back is formed. The lower surface 73 is a horizontal plane, and a rising piece 730 is formed at an end portion on the housing side. The lower plate 7B is hung from the upper plate 7A by hooking the locking piece 722 on the locked piece 710 of the upper plate 7A, and the lower surface 73 of the lower plate 7B is applied to the front lower surface 15 of the bracket 1 from the lower side. The side cap 8 is attached to the bracket 1 in a contact state, and is connected to the screw 852 from the front lower edge portion 85 of the side cap 8 that covers the front lower surface 15 of the bracket 1. On the upper surface 70, the upper portion of the lower plate 7 </ b> B is locked to the upper plate 7 </ b> A fixed to the housing with screws 701 and fixed to the upper surface 11 of the bracket with screws 702, and the lower portion is fixed to the bracket 1. Thus, the shutter case 7 is formed.

An upper case angle member 74 (see FIG. 3) is provided between the front side and the upper side of the surface portion 10 of the left and right brackets 1, and a tip side portion of the upper surface 70 of the shutter case 7 is supported. In the present embodiment, the lower case angle member is not provided and has a simple structure. Since there is no case angle material in the vicinity of the switch M, the maintainability of the switch M is improved.

The shutter case 7 further includes a back surface case 75. The rear case 75 is located on the base end side of the shutter case 7 and extends along the vicinity of the outer wall W (in the illustrated embodiment, it extends in an inclined manner in a side view), and is inclined from the upper end of the rear surface 750. An upper surface 751 extending in a horizontal direction, a horizontal lower surface 752 at the lower end of the rear surface 750, and a rising edge 753 at the tip of the lower surface 752. Both ends in the width direction of the upper surface 751 are connected to the upper surface 11 at the upper end of the bracket 1, and both ends in the width direction of the lower surface 752 are connected to the lower surface 17 on the base end side at the lower end of the bracket 1. The lower surface 752 of the back case 75 is provided with the support 22 at the other end of the switch M, and the HEMS power supply device 23 is provided.

As shown in FIG. 16, the side cap 8 has an upper edge that covers the surface 80 extending in the vertical direction and the front-rear direction while being attached to the bracket 1, and the outer periphery of the peripheral edge of the bracket 1 and both ends of the shutter case 7 in the width direction. A portion 81, an upper front edge 82, a front recess 83, a lower front edge 84, a front lower edge 85, a rear lower edge 86, and a rear edge 87 close to the outer wall W. The upper edge 81 forms the upper surface of the side cap 8, and the lower surface of the side cap 8 is formed from the front lower edge 85 and the rear lower edge 86.

An upper side locking piece 800 and a lower side locking piece 801 are formed on the inner side of the surface portion 80 of the side cap 8 so as to be separated from each other in the vertical direction, and the upper side locking piece 800 and the lower side locking piece 801 are respectively attached to the bracket 1. The side cap 8 is attached to the bracket 1 by slidingly engaging the upper locking piece 100 and the lower locking piece 101. Reinforcing ribs 802, 803, 804, 805, 806 extending in the vertical and horizontal directions are formed inside the surface portion 80 of the side cap 8. The reinforcing ribs 802 and 806 are vertical reinforcing ribs, and the reinforcing ribs 803, 804 and 805 are horizontal reinforcing ribs. In this embodiment, when the side cap 8 is attached to the bracket 1, the leading edges of the reinforcing ribs 802, 803, 804, 805, and 806 are brought into contact with the surface portion 10 of the bracket 1.

The portion located on the front side and the lower side of the side cap 8 is a divided portion that forms the surface portion 80 of the side cap 8 and a part of the edge (the front concave portion 83, the lower front edge portion 84, the front lower edge portion 85). 9, and the dividing portion 9 is configured to be detachable from the main body portion 8 ′ other than the dividing portion 9. That is, the side cap 8 is comprised from the main-body part 8 'and the division part 9 which can be attached or detached to the main-body part 8'.

As shown in FIG. 17, the main body portion 8 ′ includes a front part 8A located on the front side and the upper side of the side cap 8 and a rear part 8B other than the front part 8A, and below and behind the front part 8A. The division part 9 is detachably attached to the space (notch part) in front of the lower part of 8B. The main body portion 8 ′ includes a surface portion 80 ′ that is a portion obtained by removing the dividing portion 9 from the surface portion 80, and includes an upper edge portion 81, an upper front edge portion 82, a rear lower edge portion 86, and a rear edge portion 87 of the side cap 8. have.

The front portion 8A of the main body portion 8 ′ includes a front portion of the surface portion 80 ′, a front portion of the upper edge portion 81, an upper front edge portion 82, and a lower end portion 88. A rising edge 810 extending vertically is integrally formed on the base end side of the upper edge 81, and a hole of a screw 702 for fixing the upper surface 70 of the upper plate 7 </ b> A of the shutter case 7 is formed at a front portion of the upper edge 81. A portion 811 is formed.

The lower end portion 88 of the front portion 8A includes a horizontal edge portion 880 and a protruding piece 881 that protrudes downward from the inner surface of the edge portion 880. On the side surface (surface portion) of the projecting piece 881, a cylindrical portion 882 having a hole is projected inward. In the present embodiment, the leading edge of the cylindrical portion 882 and the leading edge of the reinforcing rib 802 are located on the same plane (see FIG. 17). In a state where the side cap 8 is attached to the bracket 1, the cylindrical portion 882 is aligned with the outer surface of the surface portion 10 of the bracket 1, and the hole portion of the cylindrical portion 882 is aligned with the screw hole 884 (see FIG. 3) formed in the surface portion 10. The projecting piece 881 at the lower end of the front portion 8A is fixed to the surface portion 10 of the bracket 1 by a screw 883 inserted from the hole of the cylindrical portion 882 (see the left figure in FIG. 20). By fixing the lower end of the front part 8A of the main body part 8 'of the side cap 8 to the surface part 10 of the bracket 1 by fixing it to the surface part 10 of the bracket 1, the lower part of the front part 8A is deformed so as to open outward. This prevents the side cap 8 from being bent (the front portion 8A and the divided portion 9 are deformed into a square shape when viewed from the front).

The rear part 8B of the main body part 8 ′ includes a rear part of the surface part 80 ′, a rear part of the upper edge part 81, a front end part 89 of the lower part of the surface part 80 ′, and a rear lower edge part 86. The rear edge portion 87 is provided. The front end portion 89 of the rear portion includes a vertical end edge 890 formed by one of vertical reinforcing ribs, and a thin edge portion 891 protruding forward from the end edge 890.

As shown in FIG. 18, the dividing portion 9 includes a dividing surface portion 90 that forms a part of the surface portion 80, and has a front concave portion 83, a lower front edge portion 84, and a front lower edge portion 85 of the side cap 8. doing. The dividing surface portion 90 includes an upper end portion 91, a rear end portion 92, a front end portion (front concave portion 83, lower front edge portion 84), and a divided lower edge portion (front side lower edge portion 85). In a state where the divided portion 9 is mounted on the main body portion 8 ′, the upper surface of the edge portion 910 of the upper end portion 91 of the divided surface portion 90 abuts on the lower surface of the edge portion 880 of the lower end portion 88 of the front portion 8A of the main body portion 8 ′. The inner surface of the rear end portion 92 of the split surface portion 90 comes into contact with the outer surface of the edge portion 891 of the front end portion 89 of the rear portion 8B of the main body portion 8 ′. The front concave portion 83 is a portion that is recessed with respect to the vertical surface formed by the upper front edge portion 82 and the lower front edge portion 84. The vertical bottom piece 830 and the lower front edge portion from the lower end of the bottom piece 830. 84. The lower horizontal piece 831 extending horizontally toward the upper end of 84, and the upper horizontal piece 832 extending in parallel with the lower horizontal piece 831 from the upper end of the bottom piece 830, the divided portion 9 is mounted on the main body portion 8 ′. In this state, the tip of the upper horizontal piece 832 is in contact with the inner surface of the lower end of the upper front edge portion 82 of the main body portion 8 ′, and this abutting portion (connection portion) is the upper end portion (upper horizontal piece) of the front recess 83. 832) (the lower end of the upper front edge 82 and the lower surface of the upper horizontal piece 832 are the same surface), it is inconspicuous from the outside.

As shown in the right diagrams of FIGS. 18 and 20, the upper end portion 91 of the dividing portion 9 includes an edge portion 910 that extends horizontally and a protruding piece 911 that protrudes upward from the edge portion 910. In the upper end portion of the dividing surface portion 90, the upper portion 912 located at a height corresponding to the front concave portion 83 is a portion recessed inward with respect to the dividing surface portion 90, and the upper end of the upper portion 912 is the edge portion 910. The protrusion 911 protrudes upward from the inner surface of the upper portion 912. The projecting piece 911 has a wedge shape, and a locking portion 9110 is formed on the proximal end side adjacent to the edge portion 910.

As shown in the right diagram of FIG. 20, in a state where the dividing portion 9 is mounted on the main body portion 8 ′, the protruding piece 911 formed on the upper end portion 91 of the dividing portion 9 is inside the front portion 8 </ b> A of the main body portion 8 ′ ( The protruding piece 881 formed on the lower end 88 of the front portion 8A of the main body portion 8 ′ contacts the inner side of the dividing portion 9 (the inner surface of the upper portion 912). In a state where the divided portion 9 is mounted on the main body portion 8 ′, the locking portion 9110 of the projecting piece 911 is locked to the edge portion 880 of the lower end portion 88 of the front side portion 8A. In a state where the divided portion 9 is mounted on the main body portion 8 ′, a side surface 8 (outer surface of the surface portion 80) of the side cap 8 is formed with a concave portion 83 ′ that is horizontal when viewed from the side by the upper portion 912 of the divided portion 9. The recessed portion 83 ′ is a portion recessed with respect to the side surface of the side cap 8 (a vertical surface formed by the outer surface of the surface portion 80), and has the same height as the front recessed portion 83 of the side cap 8. The concave portion 83 ′ is formed continuously from the side surface of the side cap 8 to the front surface.

A hole 850 is formed on the front side of the divided lower edge portion (front lower edge portion 85) of the divided portion 9. In a state where the side cap 8 is attached to the bracket 1, the split portion 9 and the lower surface 73 of the lower plate 7 </ b> B are fixed to the front lower surface 15 of the bracket 1 by a screw 852 that passes through the hole 850.

The rear side of the divided lower edge portion (front lower edge portion 85) is narrow, and a locking protrusion piece 851 protruding upward is formed at the rear end 853. A locking receiving portion 892 is formed at the lower end of the front end portion 89 of the rear portion 8B of the main body portion 8 ′ between the lower end of the vertical edge 890 and the front end of the rear lower edge portion 86. When the divided portion 9 is mounted on the main body portion 8 ′, the locking protrusion 851 of the divided portion 9 is fitted into the locking receiving portion 892 of the main body portion 8 ′, and the locking protrusion of the divided portion 9 The outer edge 8510 of 851 is in contact with the inner surface of the surface 80 ′ of the main body 8 ′, so that the divided portion 9 is positioned and fixed with respect to the main body 8 ′, and the rear end 853 of the front lower edge 85 and the rear The front end 860 of the side lower edge 86 is in contact (see FIG. 21).

The front lower edge portion 85 is integrally formed with a protruding portion 85 ′ located on the front side and protruding in a direction away from the dividing surface portion 90. The projecting portion 85 ′ has a shape in plan view, and includes a leading edge (a fifth edge described later) 850 ′ and left and right side edges (a fourth edge and a sixth edge described later) 851 ′ and 852 ′. As shown in FIG. 18, the edge of the front lower edge portion 85 has a first edge 854 extending in parallel with the dividing surface portion 90 in plan view from the rear end 853, and an inclined shape in plan view from the first edge 854 (divided forward). A second edge 855 extending in a direction away from the surface portion 90, a third edge 856 extending parallel to the dividing surface portion 90 from the second edge 855, and a distance from the dividing surface portion 90 perpendicular to the dividing surface portion 90 in plan view from the third edge 856. A fourth edge 851 ′ extending in the direction to be moved, a fifth edge 850 ′ extending in parallel with the dividing surface portion 90 in a plan view from the tip of the fourth edge 851 ′, and a fifth edge 850 ′ extending in parallel with the fourth edge 851 ′ from the fifth edge 850 ′. It consists of a sixth edge 852 ′ and a seventh edge 857 extending in parallel with the dividing surface portion 90 in plan view from the base end of the sixth edge 852 ′.

In the present embodiment, the lower surface of the side cap 8 includes a front lower edge 85 of the dividing portion 9 and a rear lower edge 86 of the main body 8 ′, a rear end 853 of the front lower edge 85, The front end 860 of the lower side edge 86 is in contact. The rear lower edge portion 86 includes a side edge 861 that extends parallel to the surface portion 80 in plan view. As shown in FIGS. 5 and 18, the edges of the lower surface (the front lower edge 85 and the rear lower edge 86) of the side cap 8 are close to the guide rail base frame 3 and the guide rail 4. Specifically, the side edge 861 is close to the outer surface of the side 30 of the guide rail base frame 3, the first edge 854 is close to the engaging portion of the guide rail base frame 3 and the guide rail 4, The second edge 855 is close to the outer base 42 ′, the third edge 856 is close to the base 42, and the fourth edge 851 ′ is close to the outer surface of the side 40 of the guide rail 4. In the present embodiment, the protruding portion 85 ′ on the lower surface of the side cap 8 closes the gap between the outdoor-side finding side 40 of the guide rail 4 and the lower surface 73 of the shutter case 7. It is possible to prevent as much as possible water intrusion from both ends in the width direction of 73 to the housing side. Further, since the protruding portion 85 ′ on the lower surface of the side cap 8 hides the expanded upper end portion 401 of the finding side 40 on the outdoor side of the guide rail 4 from the lower side, the appearance is good. In addition, as means for closing the gap between the outdoor side finding side 40 of the guide rail 4 and the lower surface 73 of the shutter case 7, instead of forming the protruding portion 85 ′ on the lower surface of the side cap 8, the lower surface 73. In this case, a protrusion (not shown) may be provided integrally or separately, or a protrusion (not shown) made of a separate member may be provided on the guide rail 4.

As shown in FIG. 5, the lower surface of the side cap 8 (the front lower edge 85 and the rear lower edge 86) has a housing side α adjacent to the guide rail base frame 3 and the housing side portion α. And an outdoor side portion β located outside, and the outdoor side portion β has a distal end side portion β1 extending beyond the guide rail 4 (outdoor side found side 40) and extending to the outdoor side. A protrusion 85 ′ extending toward the center of the opening is formed on β 1 so as to be located on the outdoor side of the entire outdoor side finding side 40 of the guide rail 4. The side edge 851 ′ of the protrusion 85 ′ and the outdoor side finding side 40 of the guide rail 4 are close to each other, and the tip edge 850 ′ of the protrusion 85 ′ and the expected surface of the guide rail 4 (the opening of the guide groove 45 is The formed leading end side expected portions 400, 410) coincide with each other. The outdoor side portion β is located between the tip side portion β1 and the housing side portion α, and has a portion β2 that is close to the bottom side portion of the guide rail 4 (outer bottom side 42 ′, bottom 42). .

In the embodiment shown in FIG. 5, the lower surface of the side cap 8 is formed of a front lower edge portion 85 and a rear lower edge portion 86, and the outdoor side portion β of the lower surface of the side cap 8 is the lower surface of the dividing portion 9. The front-side lower edge portion 85 is formed, and the housing-side portion α of the lower surface of the side cap 8 is formed from the lower surface (rear-side lower edge portion 86) of the main body portion 8 ′. In the embodiment shown in FIG. 24, the lower surface of the side cap 8 is formed of a front lower edge portion 85 and a rear lower edge portion 86, and the outdoor side portion β of the lower surface of the side cap 8 is the lower surface of the dividing portion 9. The front-side lower edge portion 85 is formed from the lower surface of the side cap 8 and the housing side portion α is a part of the lower surface (front lower edge portion 85) of the divided portion 9 and the lower surface (rear side) of the main body portion 8 ′. The lower edge 86) is formed. 5 and 24 are examples, and for example, the lower surface of the side cap 8 may be formed from a single member.

The inner surface of the surface portion 80 of the side cap 8 faces the outer surface of the surface portion 10 of the bracket 1, and there is a height between at least a lower part of the inner surface of the surface portion 80 of the side cap 8 and the outer surface of the surface portion 10 of the bracket 1. A watertight member 807 as a contact member extending in the direction is provided, and the watertight member 807 is in contact with at least a lower portion of the inner surface of the surface portion 80 of the side cap 8 and the outer surface of the surface portion 10 of the bracket 1. In the present embodiment, the watertight member 807 is fixed to the inner surface of the surface portion 80 of the side cap 8 across the lowermost horizontal reinforcing rib 805 and the rear lower edge portion 86 at a position close to the housing side. (See FIGS. 16 and 19C). As shown in FIG. 24A (A), the watertight member 807 is located at the boundary with the outer wall W (see FIG. 24A (B)), the lower part of the surface portion 80 of the side cap 8, the surface portion of the bracket 1, and the guide rail. It is located between the surface part of the side edge 30 of the base frame 3, and by the watertight member 807, the lower surface of the side cap 8 (rear side lower edge part 86) and the side edge 30 of the guide rail base frame 3. Rainwater that has been submerged between the surface portion and the surface portion of the bracket 1 is prevented from entering the housing side. As shown by the arrow in FIG. 24A (B), rainwater is infiltrated from the gap between the lower surface (rear side lower edge portion 86) of the side cap 8 and the side 30 of the guide rail base frame 3 by blowing from below. Even in this case, the watertight member 807 prevents the rainwater soaked from being flooded into the housing side. Further, the lowermost horizontal reinforcing rib 805 immerses rainwater soaked between the lower surface of the side cap 8 and the surface portion of the bracket 1 from below so that the rainwater wraps around from the upper side to the back side (frame side) of the watertight member 807. To prevent.

As shown in FIGS. 1 and 4, an elongate cover body 24 extending in the height direction is mounted at a fixed portion between the guide rail base frame 3 and the outer wall W. The cover body 24 is provided over the height direction so as to cover the screw 36 that fixes the first base end side finding side 34 of the guide rail base frame 3 to the outer wall W. The cover body 24 is used when the shutter is retrofitted, and when the shutter is advanced, the cover 36 is not used because the screw 36 is covered with the wall when finishing the wall. As shown in FIG. 22, the cover body 24 extends along the side 30 of the guide rail base frame 3 and the side surface (surface portion 80 ′) of the main body 8 ′ of the side cap 8, and is fixed to the side 30. It is attached to the piece 25. As shown in FIGS. 4 and 5, in the portion 24 ′ corresponding to the side cap 8, a part of the cover body 24 is cut out and along the recess 26 on the rear side of the outer surface of the surface portion 80 ′. It extends. In the embodiment shown in FIGS. 5 and 22, the watertight member 807 is located corresponding to the outdoor side portion of the cover body 24. 24 and 27, the watertight member 807 is located corresponding to the boundary between the outer wall W and the outdoor side part.

FIG. 23 to FIG. 25 and FIG. 27 show a configuration when the shutter is attached in advance (the window sash frame S is a resin sash), and the outer wall W is finished after the shutter is attached to the base element W ′. A coking D is provided at the boundary between the outer wall W and window shutter components (side cap 8, guide rail base frame 3, etc.). The basic configuration of the window shutter device is the same as that in the case where the shutter described above is retrofitted, except for the configuration of the lower frame 6 described below, and the description of the elements with the same reference numerals is as described above. The description of can be used.

The configuration of the base end side portion of the lower frame 6 and the mounting configuration to the housing will be described. The lower frame 6 is a long frame extending in the width direction of the opening. As shown in FIGS. 25 and 26, the lower frame 6 has an upper surface 60 extending in a downward inclined manner in a direction away from the outer wall W. , A drooping side 61 at the tip of the upper surface 60, a bottom side 62, a rising side 63, a base end side upper side 64 extending upward on the base end side of the upper surface 60, and a base end side lower side 65 extending downward on the base end side of the upper surface 60. A base end side lower side 65 ′ that is positioned further on the base end side and extends downward with respect to the base side lower side 65, and an inclined connection side 66 that connects the lower surface of the upper surface 60 and the base side lower side 65. And consist of A concave portion 600 is formed on the front end side of the lower frame 6 from a drooping side 61, a bottom side 62, and a rising side 63 at the front end of the upper surface 60. When the opening is fully closed, a lower portion of the seat plate 51 at the lower end of the shutter curtain 5 is formed. The bottom frame 6 is received in a recess 600 on the tip side.

The base end side upper side 64 and the base end side lower side 65 of the lower frame 6 form the same vertical surface, and a watertight member 69 is provided across the width direction of the lower frame 6 on the back surface of the base end side upper side 64. A thermal expansion refractory member 68 is provided across the width direction of the lower frame 6 on the back surface of the base side lower side 65. The mounting base end side lower side 65 ′ hangs down from the base end side lower side 65, and has an upper contact part 650 ′ and a lower contact part 651 ′ formed on the back surface. Yes. The tips of the upper contact portion 650 ′ and the lower contact portion 651 ′ are located on the same vertical plane. As shown in FIG. 25, the lower frame 6 is used for attachment in a state where the upper end contact portion 650 ′ and the lower end contact portion 651 ′ of the attachment base end side lower side 65 ′ are in contact with the outer wall W. It is attached by fixing the base side lower side 65 'to the base element W' with a screw 67. An outer wall W is provided on the base element W ', and the lower part on the base end side of the lower frame 6 is the outer wall. It is buried in W. By fixing the position of the base end side portion of the lower frame 6 to the housing as the lower portion of the base end portion, the rising dimension of the base side upper side 64 of the lower frame 6 is reduced, and the upper surface 60 of the lower frame 6 is reduced. The operability of the seat plate lock 53 is improved by setting the position 1 to a higher position.

As shown in FIG. 25, when the lower frame 6 is attached to the base element W ′, it is located between the base-side upper side 64 and the casing (the portion of the window sash frame S positioned on the base element W ′). The watertight member 69 is compressed, and a gap that allows foaming of the thermal expansion refractory member 68 is formed between the back surface of the base side lower side 65 and the housing (the portion of the sash S located on the base element W ′) ( Space) is formed. The mounting base end side lower side 65 'is positioned below the base end side upper side 64 and the base end side lower side 65, and the thermal expansion refractory member 68 is positioned above the screw 67 as a fixing means. The thermal expansion refractory member 68 and the screw 67 are located below the height position of the upper surface 60. In a state in which the lower frame 6 is attached to the housing, a watertight member 69 is provided between the base end side portion of the lower frame 6 and the housing so as to be located above the thermal expansion refractory member 68.

The thermal expansion refractory member 68 is a long plate or sheet extending in the width direction. When the thermal expansion refractory member 68 is heated to a predetermined temperature or more in a fire in a fully closed state of the window opening, the thermal expansion is performed. The refractory member 68 expands and expands, closes a gap that can be formed between the base end side portion and the outer wall W along the thermal deformation of the lower frame 6 over the width direction, and between the lower frame 6 and the outer side W. The fire prevention performance of the base end side site | part of the lower frame 6 is ensured by preventing the fire around. In particular, in the present embodiment, since the base end side portion of the lower frame 6 is fixed to the housing at the lower portion with the screw 67, the lower frame 6 tends to hang downward with the screw 67 as a fulcrum. Even if a gap is generated between the base portion of the lower frame 6 and the casing, the foamed thermal expansion refractory member 68 closes the gap so that the gap between the base end portion of the lower frame 6 and the casing is closed. The fire can be prevented from coming out. The watertight member 69 is typically a watertight rubber formed from a rubber material. Since the material of such a watertight member is known to those skilled in the art, a detailed description thereof will be omitted. The watertight member 69 prevents rainwater from entering the gap between the base end side upper side 64 and the window sash frame S and prevents the thermal expansion refractory member 68 from coming into direct contact with water as much as possible. Further, the watertight member 69 is located at the upper end portion of the base end side upper side 64 and is located above the thermal expansion refractory member 68, and when the lower surface of the lower frame 6 is exposed to the heat of the fire from below. The thermal expansion refractory member 68 foams between the back surface of the base side lower side 65 and the portion of the window sash frame S, thereby preventing an externally generated flame from igniting the watertight member 69.

In the present embodiment, by adopting the side cap 8 provided with the dividing portion 9, when performing maintenance of the winding shaft 2 and the opening / closing machine M, the dividing portion 9 is removed from the side cap 8, and then the shutter case 7 The lower plate 7B may be removed from the upper plate 7A. More specifically, by removing the screw 852, the division lower edge portion (front side lower edge portion 85) of the division portion 9 can be fixed to the front lower surface 15 of the bracket 1, and the main body portion of the side cap 8. The dividing part 9 can be pulled out from 8 'and removed. By removing the screw 852, the fixing of the lower plate 7B to the front lower surface 15 of the bracket 1 can be released, and the lower plate 7B is removed by releasing the locking state of the upper plate 7A on the upper side of the lower plate 7B. be able to.

In the present embodiment, the portion located on the front side and the lower side of the side cap 8 is defined as the divided portion 9 that forms the surface portion 80 and the front concave portion 83, the lower front edge portion 84, and the front lower edge portion 85 of the side cap 8, 29. Since the dividing portion 9 is configured to be detachable from the main body portion 8 ′, the upper edge 81 and the upper front edge 82 of the side cap 8 are located in the eaves ceiling C as shown in FIG. In this case, it is possible to perform maintenance of the winding shaft 2 and the opening / closing machine M by removing the dividing portion 9.

1 Bracket 10 Surface 17 Lower surface on the base end side (lower end of bracket)
170 Base frame regulating piece 101 Locking piece 1012 Opening 2 Winding shaft 3 Upper end of the side of the guide rail base frame 30 '
300 The tip side part (contacted part) of the side 30
4 Guide rail 40 Side far from the housing (outdoor side found side)
44 Connection piece (contacted part)
5 Shutter curtain 6 Lower frame 60 Upper surface 64 Upper end side upper side (first base end side in the embodiment of FIG. 2, second base end side in the embodiment of FIG. 25)
65 Base side lower side (second base side)
65 'base end side lower side for mounting (first base end side side in the embodiment of FIG. 25)
67 Screw (fixing means)
68 Thermal expansion refractory member 69 Watertight member 7 Shutter case 73 Lower surface 8 Side cap 80 Surface portion 85 Front lower edge portion (side cap lower surface)
85 'Protruding portion 851' Side edge of projecting portion, fourth edge (frame side edge)
86 Rear lower edge (underside of the side cap)
801 Lower side locking pieces 802 to 806 Reinforcing rib 807 Watertight member (contact member)
19 Mounting base 1911 2nd part 1911 (blocking board material) of the 1st vertical piece 191
20 Cover plate M Opening and closing machine (flammable element)
W outer wall (frame)
W 'ground element (frame)
S Window sash frame (frame)
α Body side portion of the side cap bottom surface β Outdoor side portion of the side cap bottom surface β1 Front side portion of the outdoor side portion of the side cap bottom surface

Claims (4)

Shutter curtains,
A winding shaft to which a shutter curtain is connected;
A shutter case that houses the winding shaft and the shutter curtain wound around the winding shaft;
Left and right brackets that are located at both ends in the width direction of the shutter case and support both ends in the length direction of the winding shaft,
With
An opening is formed in the surface portion of the bracket, and in the shutter case, there is a combustible element located in the vicinity of the opening formed in the surface portion of the bracket,
On the surface portion of the bracket, a closing plate material that closes an opening in the vicinity of the combustible element is provided.
Shutter device. A side cap is attached to the bracket,
A locking piece for locking the side cap is formed by cutting and raising the surface portion of the bracket.
The opening is an opening formed in the surface portion by the cut and raised formation,
The shutter device according to claim 1. The shutter device is an electric shutter device;
The combustible element is a switch;
The shutter device according to claim 2. The opening / closing machine is supported by a mounting base fixed to the surface of one bracket,
The closing plate material is formed from a portion of the mounting base,
The shutter device according to claim 3.

Images