JP7032238B2 - Shutter device - Google Patents

Description

The present invention relates to a shutter device.

The shutter device originally closes the opening of the building and separates the outdoor space from the indoor section, but further, in the event of a fire, a gap or opening that communicates between the outdoor space and the indoor section should not be formed. Fire protection performance is required. Patent Document 1 proposes a window shutter that prevents a flame from passing between a side member of a case body and an inspection plate in a state where the side cap is melted and dropped in the event of a fire or the like.

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

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

The technical means adopted in the present invention is
With a shutter curtain,
The take-up shaft to which the shutter curtain is connected and
A shutter case for accommodating the take-up shaft and the shutter curtain wound around the take-up shaft, and
Left and right brackets located at both ends of the shutter case in the width direction and supporting both ends in the length direction of the take-up shaft,
Equipped with
An opening is formed in the surface portion of the bracket, and a combustible element is present in the shutter case located in the vicinity of the opening formed in the surface portion of the bracket.
A closing plate material that closes an opening in the vicinity of the combustible element is provided on the surface portion of the bracket.
It is a shutter device.

In one embodiment, the bracket is fitted with a side cap.
A locking piece for locking the side cap is cut and raised on the face portion of the bracket.
The opening is an opening formed on the surface portion by the cut-up formation.

In one embodiment, the shutter device is an electric shutter device and the combustible element is a switch.
When the openings are formed in both the left and right brackets, it is sufficient that at least the openings formed in the drive side bracket and located near the switch are closed by the closing plate material.
In the embodiment described later, two locking pieces are cut and raised in each of the left and right brackets, and two upper and lower openings are formed in each bracket, but the lower opening of one bracket (drive side bracket) is formed. Only is blocked by the closing plate material.

In one embodiment, the switch is supported by a mount fixed to the face of one bracket.
The closing plate material is formed from the portion of the mounting base.
By constructing the closing plate material from the mounting base part, the switch mounting base is attached to the bracket, and at the same time, the opening is closed by the closing plate material (mounting base part). Installation can be done in one process, and workability is good.

In the present invention, an opening is formed in the surface portion of the bracket, and in a shutter case in which a flammable element is present located in the vicinity of the opening formed in the surface portion of the bracket, the surface portion of the bracket has an opening. By providing a closing plate material that closes the opening in the vicinity of the combustible element, a flame is emitted through the opening on the surface of the bracket (for example, the flame of the combustible element ignited in the shutter case is emitted to the outside or is generated outside. The flame ignites the combustible element inside the shutter case).

Therefore, in the event of a fire, after the side cap attached to the bracket burns down, the flame generated outside ignites the combustible element inside the shutter case through the opening formed in the bracket, and the combustible element inside the shutter case is released. It prevents the flame from igniting 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 device. It is a vertical sectional view of a window shutter device. It is a partially enlarged view of FIG. It is a cross-sectional view of the window shutter device, the left side shows the cross section of the height position above the window opening, and the right side shows the cross section of the height position of the window opening. It is a cross-sectional view of the upper part of one guide rail and the guide rail base frame of the window shutter device shown in FIG. 4, and is the 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 plan view, a rear view, and a side view from the top. It is a front view (the take-up shaft is omitted) which shows the inside of the upper part of a window shutter device. (A) is a vertical sectional view taken along line AA of FIGS. 3 and 4, and (B) is a vertical sectional view taken along line BB of FIGS. 3 and 4. 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 mount of a switch. The left figure is a side view of the upper part of the bracket and the guide rail base frame as viewed from the outside, and the right figure is a front view with a partial notch. 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 the cover plate. It is a figure explaining the guide rail base frame regulation structure (for aluminum sash). It is a figure explaining the guide rail base frame regulation structure (for resin sash). It is a figure which shows the side cap. It is a figure which shows the side cap main body part. It is a figure which shows the side cap division part. (A) is a vertical sectional view taken along line AA of FIG. 16, (B) is a vertical sectional view taken along line BB of FIG. 16, and (C) is a vertical sectional view taken along line CC of FIG. The figure on the right shows the engagement state between the protrusion at the upper end of the side cap split portion and the side cap main body, and the figure on the left shows the connection state between the protrusion at the lower end of the side cap main body and the bracket. It is a figure which shows. It is a figure which shows the engagement state with the locking projection piece formed at the rear end of the lower edge portion of a side cap split portion, and the locking receiving portion formed at the front end and the lower end of the rear side portion of a side cap main body portion. The left figure is a side view seen from the inside, and the right figure is a cross-sectional view seen from the back. It is a side view of the shutter case of a window shutter device (retrofitting). It is a cross-sectional view of a window shutter device (pre-attached), the left side shows a cross section at a height position above the window opening, and the right side shows a cross section at a height position of a window opening. FIG. 23 is a cross-sectional view of one of the guide rails of the window shutter device shown in FIG. 23 and the upper portion of the guide rail base frame, and is a view seen from the lower side to the upper side. (A) is a sectional view taken along line BB of (B), and (B) is a diagram similar to FIG. 24. It is a vertical sectional view of the lower part of a window shutter device (advanced). It is a figure which shows the lower frame in FIG. 25, and is a plan view, a rear view, and a side view from the top. It is a side view of the shutter case of a window shutter (advanced). It is a figure which shows the process of removing a shutter case lower plate at the time of maintenance. It is a figure which shows the case where the shutter case of a window shutter device is a semi-eave storage.

1 is a front view of a window shutter device in a fully closed position from the outdoor side, FIG. 2 is a vertical sectional view of the window shutter device, FIG. 3 is a partially enlarged view of FIG. 2, and FIG. 4 is a cross section of the window shutter device. The 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 the window device (the window sash frame S is shown in FIGS. 2 and 4) installed at the window opening of the building. As the mounting mode of the window shutter, a case where the shutter is retrofitted (a case where the shutter is mounted after finishing the outer wall W, which is shown in FIGS. 1 to 5, 7, and 22) and a case where the shutter is preliminarily attached (the case where the shutter is attached first) 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 27). Further, in the present embodiment, in the retrofit specification, the window sash frame S is an aluminum sash (see FIGS. 2, 4, etc.), and in the pre-installed specification, the window sash frame S is a resin sash (see FIGS. 23, 25, etc.). However, the aluminum sash may be a retrofit specification or the resin sash may be a retrofit specification. In the present specification, the side to which the window shutter device is attached is collectively referred to as a "framework", and the frame 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 the left and right brackets 1 attached to the frame (outer wall W) in a carry-out manner, the take-up shaft 2 supported between the left and right brackets 1, and the outer wall W. With the left and right guide rail base frames 3 attached in a carry-out manner, the left and right guide rails 4 supported by the left and right guide rail base frames 3, and the shutter curtain 5 whose upper end is connected to the take-up shaft 2. A shutter curtain 5 and a window opening that open and close the outdoor side of the window opening by moving up and down while being guided by the guide rail 4 at both ends in the width direction by being wound / unwound by the take-up shaft 2. A lower frame (drain plate) 6 attached to the skeleton (outer wall W) in a carry-out manner is provided below the frame (outer wall W). A shutter case 7 is provided above the window opening so as to house the shutter curtain 5 wound around the left and right brackets 1 and the take-up shaft 2, and is located at both ends of the shutter case 7 in the width direction. A 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', but the side cap 8 is integrated from one member. It may be formed.

As shown in FIG. 9, the bracket 1 has a vertical face portion 10, an upper surface 11 formed along the inclined upper edge of the face portion 10, and a front edge (side view concave portion) of the face portion 10. The upper front surface 12, the intermediate front surface 13, the lower front surface 14 formed, the front lower surface 15 formed along the lower edge of the surface portion 10, the intermediate lower surface 16, the base end side lower surface 17, and the trailing edge of the surface portion 10. It is composed of a rear surface 18 formed of the above. The intermediate front surface 13 is the bottom surface of the recess on the front edge of the bracket 1, and the horizontal plane 140 formed at the upper end of the lower front surface 14 forms the lower surface of the recess.

As shown in FIGS. 3 and 4, the bracket 1 is provided in a carry-out shape with respect to the outer wall W by attaching the rear surface 18 to the hook metal fitting 21 fixed to the outer wall W. A connecting piece 210 extending parallel to the surface portion 10 of the bracket 1 is formed on the hook metal fitting 21, and the surface portion 10 of the bracket 1 and the connecting piece 210 are fixed by a screw 211 (see FIG. 3, omitted in FIG. 4). So, I try to counter the blow-up 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 cross section from the horizontal piece 1000 and the rising piece 1001 in a vertical shape, and the lower locking piece 101 has an inverted L shape in cross section 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. The openings 1002 and 1012 formed at the time of cutting up are formed. The openings 1002 and 1012 are formed near the upper end and the lower end of the surface portion 10 of the bracket 1, respectively, and are located substantially at the center of the surface portion 10 of the bracket 1 in the front-rear direction.

A mounting base 19 for supporting the switch M is fixed to a lower portion of the inner surface of the surface portion 10 of the bracket 1 on the drive side at a position closer to the rear side. As shown in FIG. 10, the mounting base 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 switch M is attached to the second vertical piece 192.

As described above, an opening 1012 is formed in the face portion 10 by cutting and raising a locking piece (lower locking piece 101) for locking the side cap 8 on the face portion 10 of the bracket 1. In the shutter case, the switch M is fixed to the face 10 of the bracket 1 on the drive side, and the opening 1012 formed in the face 10 and the switch M supported by the face 10 are close to each other. In position. Since the switch M contains a resin which is a combustible element as a part of the constituent elements and the switch M has grease between the mechanical elements, the surface portion 10 of the bracket 1 on the drive side A flammable 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 located 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 has an opening 1012. The opening 1012 in the vicinity of the lower locking piece 101 is closed by abutting on the surrounding surface portion of the. The opening 1012 (opening near the combustible element) of the surface portion 10 of the bracket 1 on the drive side is closed by the second portion 1911 (blocking plate material) of the first vertical piece 191 of the mounting base 19 provided on the surface portion 10. ing. Therefore, it is possible to prevent the resin material of the switch M from inflaming through the opening 1012 formed in the surface portion 10 of the bracket 1 after the side cap 8 burns down.

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 side 30 extending in the prospective direction so as to be separated from the outer wall W and a side side 30. A locking portion 31 locked to the tip of the above, a tip side finding piece 32 extending in the finding direction at the tip side portion 300 of the side side 30, and a connecting piece 33 extending in the prospecting direction from the tip side finding piece 32. , The first base end side finding side 34 extending to the opposite side of the tip side finding piece 32 on the base end side of the side side 30 and the opposite side to the first base end side finding side 34 (with the tip side finding piece 32). It is provided with a second base end side finding 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 the block-shaped contact portion 52 provided at the lower end portion of the shutter curtain 5 abuts when the shutter curtain 5 is fully opened. ..

As shown in FIGS. 4 and 5, in the guide rail base frame 3, the first base end side found side 34 is brought into contact with the outer wall W, and the first base end side found side 34 is screwed 36. It is attached by fixing it 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 in 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 and opposed to the outer wall W, and the second base end side finding side 35 is opposed to the outer wall W. A gap (space) is formed between the back surface and the outer wall W, and the thermal expansion fireproof member 37 provided on the back surface of the second base end side finding side 35 is located in such a space. On the back surface of the second base end side found side 35, a watertight member 38 located outside the thermal expansion refractory member 37 is provided over the height direction, and the second base end side found side 35 and the outer wall are provided. The gap with W is closed in the height direction. The watertight member 38 (the state in which 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 has a thickness with the back surface of the second base end side found side 35. A gap (space) is formed between the outer walls W to accommodate the thermal expansion refractory member 37 in a foamable state.

The thermal expansion fire resistant member 37 is a long plate or sheet body extending in the height direction, and when the thermal expansion fire resistant member 37 is heated to a predetermined temperature or higher at the time of a fire in a state where the window opening is fully closed, heat is generated. The expansion fire-resistant member 37 foams and expands, and the gap that can be formed between the base end side portion of the side side 30 and the outer wall W due to thermal deformation of the guide rail base frame 3 is closed over the height direction to guide the guide. Preventing the rotation of fire from between the rail base frame 3 and the outer wall W to ensure the fire protection performance of the base end side portion of the guide rail base frame 3. The watertight member 38 is typically a watertight rubber formed of a rubber material, and since the material of such a watertight member is known to those skilled in the art, detailed description thereof will be omitted. The watertight member 38 prevents rainwater from infiltrating into the gap between the second base end 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. There is.

The guide rail 4 is a long member extending vertically in the height direction of the window opening, and is close to the side side (outdoor side found side) 40 far from the skeleton (outer wall W) and the skeleton (outer wall W). It has a substantially U-shaped shape in a plan view from the side side 41 and the bottom side 42, and accepts both ends in the width direction of the shutter curtain 5 between the opposite side sides 40 and 41 and guides them in the vertical direction. A guide groove 45 is formed. More specifically, as shown in FIG. 5, the tip side prospects 400 and 410 are projected so as to face each other at the tips of the side sides 40 and 41, and the tip side prospects 400 and 410 are made of a sound deadening material (sound deadening material). (Not shown) are provided so as to face each other, and an opening of the guide groove 45 is formed between the sound deadening materials. The guide rail 4 has a height corresponding to the total 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. The upper end portions 401 and 411 of the side sides 40 and 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 locks to the locking portion 31 of the guide rail base frame 3 and a connecting piece 44 that connects to the connecting piece 33 of the guide rail base frame 3 are integrally formed. More specifically, the base end side of the side side 41 is formed with an extending side 41 ′ extending beyond the bottom side 42 so as to be away from the window opening, and the bottom side 42 of the guide rail 4 is formed with a skeleton (outer wall). An outer bottom side 42'extending in a plan view inclined toward the W) side is formed in a direction away from the window opening, and the outer bottom side 42'supports the tip end side portion of the extending side 41'of the side side 41. is doing. A locking portion 43 is integrally formed at the tip of the extending side 41'. On the extending side 41', a connecting piece 44 located near the bottom side 42 and extending toward the skeleton (outer wall W) is integrally formed. 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 embodiment.

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 of the seat plate 51 at the lower end in the width direction. .. The shutter curtain 5 moves up and down while being guided by the groove portion of the guide rail 4 at both ends in the width direction of the slats 50 to open and close the opening. 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 comes into contact with the stopper 39 provided at the upper end portion of the guide rail base frame 3. When the opening is fully closed, the lower portion of the seat plate 51 at the lower end of the shutter curtain 5 is received in a recess 600 on the tip end side of the lower frame 6 in a jerky manner.

In the present embodiment, the guide rail base frame 3 is fixed to the outer wall W (framework) on the base end side, and is connected to the lower frame 6 at the lower end by a screw (not shown), but is guided by wind pressure. If the tip end side of the rail base frame 3 is deformed outward, the slats 50 may come out of the groove portion of the guide rail 4. In the present embodiment, in order to regulate the deformation of the guide rail base frame 3 to the outside and improve the wind pressure resistance performance, the base frame regulation structure that regulates the deformation of the upper end portion of the guide rail base frame 3 at the lower end portion of the bracket 1. Was provided. The base frame regulation structure is provided at the lower end of the bracket 1 and extends below the upper end of the guide rail base frame 3. The base frame regulation piece 170 and the base frame regulation piece 170 provided at the tip end side of the guide rail base frame 3 are provided. The contacted portion of 170 (tip side portion 300, connecting piece 44) and the base frame restricting piece 170 abut against the contacted portion to regulate the lateral runout of the guide rail base frame 3 and the guide rail 4. is doing. In the present embodiment, two types of guide rail base frames 3 are used, one for aluminum sashes and the other for resin sashes. FIG. 14 shows a base frame regulation structure for aluminum sashes, and FIG. 15 shows a base frame regulation structure for resin sashes. ..

In the embodiment shown in FIG. 14, a hanging-shaped base frame restricting piece 170 is formed at the tip of the base end side lower surface 17 of 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. It is located in a U-shaped groove in a plan view surrounded by, perpendicular to the tip side portion and the connecting piece 33 and parallel to the tip side found piece 32. One end in the width direction of the base frame restricting piece 170 is close to the tip end side 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 located inside the connecting piece 33 of the guide rail base frame 3 (see FIG. 12). When an attempt is made to deform the upper end portion of the guide rail base frame 3 so as to open outward due to wind pressure, one end of the base frame restricting piece 170 in the width direction comes into contact with the inner surface of the connecting piece 44, so that the guide rail base is formed. The movement of the upper part of the frame 3 to the outside is restricted. The inward deformation of the upper portion of the guide rail base frame 3 can also be regulated by the base frame control piece 170.

In the embodiment shown in FIG. 15, the base frame restricting metal fitting 17'is attached to a predetermined position at the lower end portion of the surface portion 10 of the bracket 1, and the base frame restricting metal fitting 17'has a hanging shape extending downward from the lower end of the bracket 1. The base frame regulation 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. It is located in a U-shaped groove in a plan view surrounded by 32, perpendicular to the tip side portion and the connecting piece 33, and parallel to the tip side found piece 32. One end in the width direction of the base frame restricting piece 170'is close to the tip end side 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 located inside the connecting piece 33 of the guide rail base frame 3 (see FIG. 12). When an attempt is made to deform the upper end portion of the guide rail base frame 3 so as to open outward due to wind pressure, one end of the base frame restricting piece 170'in the width direction abuts on the inner surface of the connecting piece 44, so that the guide rail comes into contact with the inner surface of the connecting piece 44. The movement of the upper portion of the base frame 3 to the outside is restricted. The inward deformation of the upper portion of the guide rail base frame 3 can also be regulated by the base frame control piece 170'.

The lower end of the face portion 10 of the bracket 1 (lower surface 17 on the base end side) and the upper end of the guide rail base frame 3 (the upper end 30'of the side side 30 and the upper end 30'includes the upper end of the tip side portion 300). They are in contact with each other (see FIGS. 11 and 12), and the outer surface of the surface portion 10 of the bracket 1 and the outer surface of the side side 30 of the guide rail base frame 3 are located on the same vertical surface (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 side 30 of the guide rail base frame 3. , The contact portion between the lower surface 17 on the base end side of the surface portion 10 of the bracket 1 and the upper end 30'of the side 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 portions of the left and right brackets 1 and the upper end portions of the left and right guide rail base frames 3. The cover plate 20 can close a gap that may be disadvantageous in terms of fire protection 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 from a horizontally extending upper edge 200, a horizontally extending lower edge 201, a base end side vertical edge 202, and a tip end side vertical edge 203. A hole 204 for a screw 205 for fixing the cover plate 20 to the outer lower end portion of the surface portion of the bracket 1 is formed in the upper half portion. The semicircular notch 206 on the tip end side of the upper edge 200 of the cover plate 20 is a notch for releasing a screw for fixing the base frame regulation piece 171'(see FIG. 15).

In the present embodiment, as shown in the right figure of FIG. 11, the outer surface of the surface portion 10 of the bracket 1 and the outer surface of the side side 30 of the guide rail base frame 3 are on the same vertical surface, and the cover plate 20 is in a vertical posture. It extends so as to straddle between the lower end portion of the outer surface of the surface portion 10 of 1 and the upper end portion of the outer surface of the side side 30 of the guide rail base frame 3. When the outer surface of the surface portion 10 of the bracket 1 and the outer surface of the side side 30 of the guide rail base frame 3 are not on the same vertical surface, the shape of the cover plate 20 is a cross-sectional shape that follows the above two outer surfaces. For example, the upper vertical surface that abuts on the outer surface of the surface portion 10 of the bracket 1, the lower vertical surface that abuts on the outer surface of the side side 30 of the guide rail base frame 3, and the lower end of the upper vertical surface and the upper end of the lower vertical surface are connected. It becomes an intermediate horizontal plane).

The cover plate 20 covers the contact portion between the lower surface 17 on the base end side of the surface portion 10 of the bracket 1 and the upper end 30'of the side side 30 of the guide rail base frame 3 over substantially the entire width, and further covers the tip end side of the cover plate 20. Extends beyond the contact portion between the lower end of the bracket 1 and the upper end of the guide rail base frame 3 to the upper end portion of the guide rail 4, and the base end side vertical edge 202 of the cover plate 20 is a skeleton (outer wall W). ) Is close. In the present embodiment, the front lower surface 15 of the bracket 1 is located below 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 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 (front lower edge portion 85 and rear lower edge portion 86), and the cover plate 20 is a bracket. It 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 body extending in the width direction of the opening, and as shown in FIGS. 2 and 6, the lower frame 6 has an upper surface 60 extending downward in a direction away from the outer wall W. , The hanging side 61, the bottom side 62, the rising side 63 of the tip of the upper surface 60, the base end side upper side 64 extending upward on the base end side of the upper surface 60, and the base end side lower side 65 extending downward on the base end side of the upper surface 60. And an inclined connecting side 66 connecting the lower surface of the upper surface 60 and the lower side 65 on the base end side. A recess 600 is formed from the hanging side 61, the bottom side 62, and the rising side 63 of the tip of the upper surface 60 on the tip end side of the lower frame 6, and when the opening is fully closed, the lower portion of the seat plate 51 at the lower end of the shutter curtain 5 is formed. It is received in a recess 600 on the tip side of the lower frame 6 in a jagged shape (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, 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. A 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, in the lower frame 6, the base end side upper side 64 is screwed in a state where the upper end contact portion 640 of the base end side upper side 64 and the tip of the lower contact portion 660 are in contact with the outer wall W. It is attached by fixing it 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 refractory member 68 is formed on the back surface of the base end side lower side 65. It is provided over the width direction of 6. A watertight member 69 is provided on the back surface of the base end side upper side 64 in the width direction of the lower frame 6. As shown in FIG. 2, when the lower frame 6 is attached to the outer wall W, the watertight member 69 is compressed located between the base end side upper side 64 and the outer wall W, and the back surface of the base end side lower side 65 is compressed. A gap (space) is formed between the outer wall W and the outer wall W to allow the thermal expansion refractory member 68 to foam.

The thermal expansion fire resistant member 68 is a long plate or sheet body extending in the width direction, and when the thermal expansion fire resistant member 68 is heated to a predetermined temperature or higher at the time of a fire in a state where the window opening is fully closed, the thermal expansion fire resistant member 68 is thermally expanded. The fire-resistant member 68 foams and expands, and closes a gap that can be formed between the base end side portion and the outer wall W due to thermal deformation of the lower frame 6 over the width direction, and between the lower frame 6 and the outer W. Prevents the rotation of fire from the ground and secures the fire protection performance of the base end side portion of the lower frame 6. The watertight member 69 is typically a watertight rubber formed of a rubber material, and since the material of such a watertight member is known to those skilled in the art, detailed description thereof will be omitted. The watertight member 69 prevents rainwater from infiltrating into the gap between the base end 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 fire from below. The thermal expansion refractory member 68 foams between the back surface of the lower side 65 on the base end side and the outer wall W, thereby preventing the flame generated from the outside from igniting 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 the present embodiment, the shutter case 7 has 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 is configured to be separable from and. With the shutter case 7 installed, the lower plate 7B can be attached to and detached from the upper plate 7A connected to the skeleton, and by removing the lower plate 7B from the upper plate 7A, the so-called take-up shaft 2 and 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 (framework) 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 “re” -shaped locked piece 710 that is folded back toward the inside (base end side or skeleton side) is formed.

The lower front surface 72 is a vertical surface, and at the upper end is a horizontal piece 720 extending inward (base end side or skeleton side), a rising piece 721 rising vertically from the horizontal piece 720, and outward from the upper end of the rising piece 721. An inverted "re" -shaped locking piece 722 that is folded back toward it is formed. The lower surface 73 is a horizontal plane, and a rising piece 730 is formed at the end on the skeleton side. The lower plate 7B is suspended 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 hits the front lower surface 15 of the bracket 1 from the lower side. The side cap 8 is attached to the bracket 1 in the state of being in contact with the bracket 1, 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 7B is locked to the upper plate 7A fixed to the skeleton by the screw 701 and fixed to the upper surface 11 of the bracket by the screw 702, and the lower portion is fixed to the bracket 1. As a result, 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 portions 10 of the left and right brackets 1 to support the tip end side portion of the upper surface 70 of the shutter case 7. In this embodiment, the lower case angle material is not provided, and the structure is simple. 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 back surface case 75 is located on the base end side of the shutter case 7 and extends along the outer wall W in close proximity to the rear surface 750 (in the illustrated embodiment, extends in a laterally inclined shape) and an inclined shape from the upper end of the rear surface 750. It is provided with an upper surface 751 extending to the surface, a horizontal lower surface 752 at the lower end of the rear surface 750, and a rising side 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 of the upper end of the bracket 1, and both ends of the lower surface 752 in the width direction are connected to the lower surface 17 on the base end side of the lower end of the bracket 1. A support portion 22 at the other end of the switch M is provided on the lower surface 752 of the back surface case 75, and a HEMS power supply device 23 is provided.

As shown in FIG. 16, the side cap 8 has a surface portion 80 extending in the vertical and front-rear directions while being attached to the bracket 1, and an upper edge covering the peripheral edge of the bracket 1 and the outer surfaces of both ends in the width direction of the shutter case 7. A portion 81, an upper front edge portion 82, a front recessed portion 83, a lower front edge portion 84, a front side lower edge portion 85, a rear side lower edge portion 86, and a trailing edge portion 87 close to the outer wall W are provided. The upper edge portion 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 portion 85 and the rear lower edge portion 86.

An upper locking piece 800 and a lower locking piece 801 are formed inside the surface portion 80 of the side cap 8 so as to be vertically separated from each other. The side cap 8 is attached to the bracket 1 by sliding and locking the upper locking piece 100 and the lower locking piece 101. Reinforcing ribs 802, 803, 804, 805, and 806 extending in the vertical and horizontal directions are formed inside the surface portion 80 of the side cap 8. Reinforcing ribs 802 and 806 are vertical reinforcing ribs, and reinforcing ribs 803, 804 and 805 are horizontal reinforcing ribs. In the present embodiment, when the side cap 8 is attached to the bracket 1, the tip edges of the reinforcing ribs 802, 803, 804, 805, and 806 come into contact with the face 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 forming the face portion 80 and a part of the edge portion (front side recess 83, lower front edge portion 84, front side lower edge portion 85) of the side cap 8. The number of the split portion 9 is 9, and the split portion 9 is configured to be removable from the main body portion 8'other than the split portion 9. That is, 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'.

As shown in FIG. 17, the main body 8'consists of an anterior portion 8A located on the anterior side and upper side of the side cap 8 and a posterior portion 8B other than the anterior portion 8A, and is a lower and posterior portion of the anterior portion 8A. The split portion 9 is detachably attached to the space (notch portion) in front of the lower portion of the 8B. The main body portion 8'includes a face portion 80', which is a portion obtained by removing the split portion 9 from the face portion 80, and has an upper edge portion 81, an upper front edge portion 82, a rear lower edge portion 86, and a trailing 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 vertically extending rising side 810 is integrally formed on the base end side of the upper edge portion 81, and a hole of a screw 702 for fixing the upper surface 70 of the upper plate 7A of the shutter case 7 is formed in the front portion of the upper edge portion 81. The portion 811 is formed.

The lower end 88 of the front portion 8A includes a horizontal edge 880 and a protrusion 881 projecting downward from the inner surface of the edge 880. On the side surface (face portion) of the projecting piece 881, a tubular portion 882 having a hole portion is projected inward. In the present embodiment, the tip edge of the tubular portion 882 and the tip edge of the reinforcing rib 802 are located on the same surface (see FIG. 17). When the side cap 8 is attached to the bracket 1, the tubular portion 882 is formed on the outer surface of the surface portion 10 of the bracket 1, and the hole portion of the tubular portion 882 is formed on the surface portion 10 with a screw hole 884 (see FIG. 3). The protrusions 881 at the lower end of the front portion 8A are fixed to the surface portion 10 of the bracket 1 by the screw 883 inserted through the hole portion of the tubular portion 882 (see the left diagram of FIG. 20). By fixing the lower end of the front side portion 8A of the main body portion 8'of the side cap 8 (the connection portion with the upper end portion of the split portion 9) to the face portion 10 of the bracket 1, the lower end of the front side portion 8A is deformed so as to open outward. This is prevented, and the side cap 8 is prevented from being deformed so as to be broken (the front side portion 8A and the split portion 9 are deformed in a dogleg shape when viewed from the front).

The rear portion 8B of the main body portion 8'contains the rear portion of the face portion 80', the rear portion of the upper edge portion 81, the front end portion 89 of the lower portion of the surface portion 80', and the rear lower edge portion 86. , A trailing edge portion 87 is provided. The front end 89 of the posterior portion comprises a vertical edge 890 formed by one of the longitudinal reinforcing ribs and a thin edge 891 projecting forward from the edge 890.

As shown in FIG. 18, the split portion 9 includes a split surface portion 90 that forms a part of the face 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. is doing. The split surface portion 90 includes an upper end portion 91, a rear end portion 92, a front end portion (front side recess 83, lower front edge portion 84), and a split lower edge portion (front side lower edge portion 85). In a state where the split portion 9 is attached to the main body portion 8', the upper surface of the edge portion 910 of the upper end portion 91 of the split surface portion 90 abuts on the lower surface of the edge portion 880 of the lower end portion 88 of the front side portion 8A of the main body portion 8'. The inner surface of the rear end portion 92 of the split surface portion 90 abuts on 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 recessed with respect to the vertical surface formed by the upper front edge portion 82 and the lower front edge portion 84, and is a vertical bottom piece 830 and a lower front edge portion from the lower end of the bottom piece 830. It consists of a lower horizontal piece 831 extending horizontally toward the upper end of 84 and an upper horizontal piece 832 extending parallel to the lower horizontal piece 831 from the upper end of the bottom piece 830, and the divided portion 9 is attached to the main body portion 8'. In the 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 contact portion (connecting portion) is the upper end portion (upper horizontal piece) of the front side recess 83. Since it is at the same height as 832) (the lower end of the upper front edge portion 82 and the lower surface of the upper horizontal piece 832 are on the same surface), it is not noticeable from the outside.

As shown in FIGS. 18 and 20 on the right, the upper end portion 91 of the divided portion 9 includes an edge portion 910 extending horizontally and a projecting piece 911 protruding upward from the edge portion 910. In the upper end portion of the divided surface portion 90, the upper portion 912 located at the height corresponding to the front concave portion 83 is a portion recessed inward with respect to the divided surface portion 90, and the upper end of the upper portion 912 is the edge portion 910. The projecting piece 911 projects 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 base end side in the vicinity of the edge portion 910.

As shown in the right figure of FIG. 20, when the split portion 9 is attached to the main body portion 8', the projecting piece 911 formed on the upper end portion 91 of the split portion 9 is inside the front side portion 8A of the main body portion 8'. The protrusion 881 formed at the lower end portion 88 of the front side portion 8A of the main body portion 8 ′ abuts on the inner surface of the divided portion 9 (inner surface of the upper portion 912). In a state where the divided portion 9 is attached to 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 attached to the main body portion 8', a horizontal recess 83'is formed on the side surface of the side cap 8 (outer surface of the surface portion 80) by the upper portion 912 of the divided portion 9. The recess 83'is a portion recessed with respect to the side surface of the side cap 8 (the vertical surface formed by the outer surface of the surface portion 80), has the same height and width as the front recess 83 of the side cap 8, and has the same height and width as the front recess 83. , The recess 83'is continuously formed 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 side lower edge portion 85) of the divided portion 9. With the side cap 8 attached to the bracket 1, the lower surface 73 of the split portion 9 and the lower plate 7B is fixed to the front lower surface 15 of the bracket 1 by a screw 852 passing through the hole 850.

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

The front lower edge portion 85 is integrally formed with a protruding portion 85 ′ that is located on the front side and projects in a direction away from the divided surface portion 90. The protrusion 85'has a plan-viewing shape, and includes a tip edge (fifth edge described later) 850'and left and right side edges (fourth edge and 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 parallel to the split surface portion 90 in a plan view from the rear end 853, and a plan view inclined shape (divided toward the front) from the first edge 854. The second edge 855 extending in the direction away from the surface portion 90), the third edge 856 extending parallel to the split surface portion 90 from the second edge 855, and the third edge 856 separated from the split surface portion 90 perpendicularly to the split surface portion 90 in a plan view. The fifth edge 850'extending parallel to the divided surface portion 90 in a plan view from the tip of the fourth edge 851', the fourth edge 851' extending in the direction of It is composed of a sixth edge 852'and a seventh edge 857 extending parallel to the divided surface portion 90 in a plan view from the base end of the sixth edge 852'.

In the present embodiment, the lower surface of the side cap 8 is composed of a front lower edge portion 85 of the split portion 9 and a rear lower edge portion 86 of the main body portion 8 ′, and is a rear end 853 of the front lower edge portion 85 and a rear end portion 853. The front end 860 of the lower side edge portion 86 is in contact with the front end portion 86. The rear lower edge portion 86 includes a side edge 861 extending parallel to the surface portion 80 in a plan view. As shown in FIGS. 5 and 18, the edge portion of the lower surface of the side cap 8 (front side lower edge portion 85, rear side lower edge portion 86) is 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 side 30 of the guide rail base frame 3, and the first edge 854 is close to the locking 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 bottom 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, so that the lower surface of the shutter case 7 is closed. It is possible to prevent water from entering the skeleton side from both ends in the width direction of 73 as much as possible. Further, the protruding portion 85'on the lower surface of the side cap 8 hides the widened upper end portion 401 of the found side 40 on the outdoor side of the guide rail 4 from below, which is good in appearance. As a 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 is formed. A protrusion (not shown) may be provided integrally or separately on the guide rail 4, 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 (front side lower edge portion 85, rear side lower edge portion 86) has a skeleton side portion α close to the guide rail base frame 3 and a skeleton side portion α. The outdoor side portion β is composed of an outdoor side portion β located on the outside, and the outdoor side portion β has a tip side portion β1 extending to the outdoor side beyond the guide rail 4 (outdoor side found side 40), and is a tip side portion. The β1 is formed with a protruding portion 85 ′ extending toward the center of the opening so as to be located on the outdoor side of the entire surface of the 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 prospective surface of the guide rail 4 (the opening of the guide groove 45 is open. The formed tip side prospects 400, 410) are in agreement. The outdoor side portion β is located between the tip side portion β1 and the skeleton side portion α, and has a portion β2 close to the bottom side portion (outer base 42', bottom 42 portion) of the guide rail 4. ..

In the embodiment shown in FIG. 5, the lower surface of the side cap 8 is formed of the front lower edge portion 85 and the 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 split portion 9. It is formed from (front lower edge portion 85), and the skeleton side portion α on 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 the front lower edge portion 85 and the 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 split portion 9. It is formed from (front side lower edge portion 85), and the skeleton side portion α on the lower surface of the side cap 8 is a part of the lower surface of the divided portion 9 (front side lower edge portion 85) and the lower surface (rear side) of the main body portion 8 ′. It is formed from the lower edge portion 86). 5 and 24 are examples, and for example, the lower surface of the side cap 8 may be formed from one member.

The inner surface of the face portion 80 of the side cap 8 faces the outer surface of the face portion 10 of the bracket 1, and the height is at least between the lower portion of the inner surface of the face portion 80 of the side cap 8 and the outer surface of the face portion 10 of the bracket 1. A watertight member 807 is provided as a contact member extending in the direction, 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 over between the lowermost horizontal reinforcing rib 805 and the rear lower edge portion 86 at a position closer to the skeleton side. (See FIGS. 16 and 19 (C)). As shown in FIG. 24A (A), the watertight member 807 is located at the boundary with the outer wall W (see FIG. 24A (B)), and the lower portion of the surface portion 80 of the side cap 8 and the surface portion of the bracket 1 and the guide rail. It is located between the side surface portion of the base frame 3 and the side surface portion of the side side 30 of the guide rail base frame 3 by the watertight member 807 on the lower surface of the side cap 8 (rear side lower edge portion 86). It prevents rainwater that has entered between the surface portion and the surface portion of the bracket 1 from entering the skeleton side. As shown by the arrow in FIG. 24A (B), rainwater infiltrates from the gap between the lower surface of the side cap 8 (rear side lower edge portion 86) and the side side 30 of the guide rail base frame 3 due to blowing from below or the like. Even in such a case, the watertight member 807 prevents the flooded rainwater from flooding to the skeleton side. Further, the lowermost horizontal reinforcing rib 805 prevents rainwater that has flooded between the lower surface of the side cap 8 and the surface of the bracket 1 from below so as to wrap around the back side (frame side) of the watertight member 807 from above. To prevent.

As shown in FIGS. 1 and 4, a long cover body 24 extending in the height direction is attached 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 retrofitted, the screw 36 is covered by the wall when finishing the wall, so that the cover body 24 is not used. As shown in FIG. 22, the cover body 24 extends along the side surface 30 of the guide rail base frame 3 and the side surface (face portion 80') of the main body portion 8'of the side cap 8, and is fixed to the side side 30 for mounting. 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 inside of the concave portion 26 on the rear side of the outer surface of the surface portion 80 ′. Is extending. 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. In the embodiment shown in FIGS. 24 and 27, the watertight member 807 is located corresponding to the boundary between the outer wall W and the outdoor side portion.

FIGS. 23 to 25 and 27 show a configuration in which a 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 caulking D is provided at the boundary between the outer wall W and the window shutter component (side cap 8, guide rail base frame 3, etc.). The basic configuration of the window shutter device is the same as the case where the shutter described above is retrofitted except for the configuration of the lower frame 6 below, and the description of the elements with the same reference number is described above. The description of can be used.

The configuration of the base end side portion of the lower frame 6 and the configuration for attaching to the skeleton will be described. The lower frame 6 is a long frame body extending in the width direction of the opening, and as shown in FIGS. 25 and 26, the lower frame 6 has an upper surface 60 extending downward in a direction away from the outer wall W. , The hanging side 61, the bottom side 62, the rising side 63 of the tip of the upper surface 60, the base end side upper side 64 extending upward on the base end side of the upper surface 60, and the base end side lower side 65 extending downward on the base end side of the upper surface 60. And, the mounting base end side lower side 65'which is located further on the base end side and extends downward with respect to the base end side lower side 65, and the inclined connecting side 66 connecting the lower surface of the upper surface 60 and the base end side lower side 65. And consists of. A recess 600 is formed from the hanging side 61, the bottom side 62, and the rising side 63 of the tip of the upper surface 60 on the tip end side of the lower frame 6, and when the opening is fully closed, the lower portion of the seat plate 51 at the lower end of the shutter curtain 5 is formed. It is received in a recess 600 on the tip end side of the lower frame 6 in a jerky manner.

The base end side upper side 64 and the base end side lower side 65 of the lower frame 6 form the same vertical plane, and a watertight member 69 is provided on the back surface of the base end side upper side 64 over the width direction of the lower frame 6. A thermal expansion refractory member 68 is provided on the back surface of the lower side 65 on the base end side in the width direction of the lower frame 6. The lower side 65'on the base end side for mounting is located on the base end side of the lower side 65'on the base end side and hangs down, and an upper contact portion 650'and a lower contact portion 651' are formed on the back surface. There is. 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 for mounting in a state where the tips of the upper contact portion 650'and the lower contact portion 651'of the lower side 65'on the mounting base end side are in contact with the outer wall W. It is attached by fixing the lower side 65'on the base end side to the base element W'with a screw 67, the 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 setting the fixing position of the base end side portion of the lower frame 6 to the skeleton as the lower portion of the base end side portion, the rising dimension of the base end 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 of the seat plate 53 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 end side upper side 64 and the skeleton (the portion of the window sash frame S located on the base element W'). The watertight member 69 is compressed, and a gap (a gap allowing the thermal expansion refractory member 68 to foam) between the back surface of the lower side 65 on the base end side and the skeleton (the portion of the sash S located on the base element W'). Space) is formed. The mounting base end side lower side 65'is located below the base end side upper side 64 and the base end side lower side 65, and the thermal expansion refractory member 68 is located 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 where the lower frame 6 is attached to the skeleton, a watertight member 69 is provided between the base end side portion of the lower frame 6 and the skeleton, located above the thermal expansion refractory member 68.

The thermal expansion fire resistant member 68 is a long plate or sheet body extending in the width direction, and when the thermal expansion fire resistant member 68 is heated to a predetermined temperature or higher at the time of a fire in a state where the window opening is fully closed, the thermal expansion fire resistant member 68 is thermally expanded. The fire-resistant member 68 foams and expands, and closes a gap that can be formed between the base end side portion and the outer wall W due to thermal deformation of the lower frame 6 over the width direction, and between the lower frame 6 and the outer W. Prevents the rotation of fire from the ground and secures the fire protection performance of the base end side portion of the lower frame 6. In particular, in the present embodiment, since the base end side portion of the lower frame 6 is fixed to the skeleton with screws 67 at the lower portion, the lower frame 6 tends to hang downward with the screw 67 as a fulcrum. Even if a gap is generated between the substrate side portion of the lower frame 6 and the skeleton, the heat-expanded refractory member 68 that has foamed the gap closes the gap from between the base end side portion of the lower frame 6 and the skeleton. It is possible to prevent a fire from coming out. The watertight member 69 is typically a watertight rubber formed of a rubber material, and since the material of such a watertight member is known to those skilled in the art, detailed description thereof will be omitted. The watertight member 69 prevents rainwater from infiltrating into 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 fire from below. The thermal expansion refractory member 68 foams between the back surface of the lower side 65 on the base end side and the portion of the window sash frame S, thereby preventing the external flame from igniting the watertight member 69.

In the present embodiment, by adopting the side cap 8 provided with the split portion 9, the split portion 9 is removed from the side cap 8 when the take-up shaft 2 and the switch M are maintained, and then the shutter case 7 is used. The lower plate 7B may be removed from the upper plate 7A. More specifically, by removing the screw 852, the fixing of the split lower edge portion (front side lower edge portion 85) of the split portion 9 to the front lower surface surface 15 of the bracket 1 can be released, and the main body portion of the side cap 8 can be released. The split portion 9 can be pulled out from the 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 by releasing the locked state of the upper upper plate 7A of the lower plate 7B, the lower plate 7B is removed. be able to.

In the present embodiment, the portions located on the front side and the lower side of the side cap 8 are the divided portions 9 forming the face portion 80, the front recessed portion 83, the lower front edge portion 84, and the front lower edge portion 85 of the side cap 8. Since the split portion 9 is detachably configured with respect to the main body portion 8', the upper edge portion 81 and the upper front edge portion 82 of the side cap 8 are located in the eaves ceiling C as shown in FIG. 29. Also, by removing the split portion 9, it is possible to perform maintenance on the take-up shaft 2 and the switch M.

1 Bracket 10 Face 17 Base end side lower surface (lower end of bracket)
170 Base frame regulation piece 101 Locking piece 1012 Opening 2 Winding shaft 3 Guide rail Base frame 30'Upper end of the side
300 The tip side part of the side side 30 (contacted part)
4 Guide rail 40 Side side far from the skeleton (outdoor side found side)
44 Connecting piece (contacted part)
5 Shutter curtain 6 Lower frame 60 Upper surface 64 Base end side upper side (1st base end side in the embodiment of FIG. 2, 2nd base end side in the embodiment of FIG. 25)
65 Base end side lower side (second base end side side)
65'Lower side of mounting base end (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 Bottom surface 8 Side cap 80 Surface portion 85 Front lower edge (bottom surface of side cap)
85'Protruding part 851'Side edge of the protruding part, 4th edge (side edge of the skeleton)
86 Rear lower edge (lower surface of side cap)
801 Lower locking piece 802-806 Reinforcing rib 807 Watertight member (contact member)
19 Mounting base 1911 Second part 1911 of the first vertical piece 191 (blocking plate material)
20 Cover plate M switch (combustible element)
W outer wall (framework)
W'underground element (framework)
S window sash frame (framework)
α Frame side part of the lower surface of the side cap β Outdoor side part of the lower surface of the side cap β1 Tip side part of the outdoor side part of the lower surface of the side cap

Claims (4)

With a shutter curtain,
The take-up shaft to which the shutter curtain is connected and
A shutter case for accommodating the take-up shaft and the shutter curtain wound around the take-up shaft, and
Left and right brackets located at both ends of the shutter case in the width direction and supporting both ends in the length direction of the take-up shaft,
Equipped with
An opening is formed in the surface portion of the bracket, and a switch which is a combustible element is present in the shutter case in the vicinity of the opening formed in the surface portion of the bracket.
A closing plate material for closing the opening in the vicinity of the switch is provided on the surface portion of the bracket.
Shutter device. A side cap is attached to the bracket,
A locking piece for locking the side cap is cut and raised on the face portion of the bracket.
The opening is an opening formed on the surface portion by the cut-up formation.
The shutter device according to claim 1. The switch is supported by a mounting base fixed to the face portion of one of the brackets.
The closing plate material is formed from a portion of the mounting base.
The shutter device according to any one of claims 1 and 2. With a shutter curtain,
The take-up shaft to which the shutter curtain is connected and
A shutter case for accommodating the take-up shaft and the shutter curtain wound around the take-up shaft, and
Left and right brackets located at both ends of the shutter case in the width direction and supporting both ends in the length direction of the take-up shaft,
The side cap attached to the bracket and
Equipped with
A locking piece for locking the side cap is cut and raised on the face portion of the bracket.
An opening is formed in the surface portion of the bracket by the cut -up formation, and a combustible element is present in the shutter case located in the vicinity of the opening formed in the surface portion of the bracket.
A closing plate material that closes an opening in the vicinity of the combustible element is provided on the surface portion of the bracket.
Shutter device.

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