JP2023163075A - Window shutter - Google Patents

Abstract

To provide a window shutter capable of preventing as much as possible a gap is formed at the bottom edge by suppressing thermal deformation of a seat plate during a fire in a fully closed state.SOLUTION: In the window shutter, a shutter curtain 5 opens and closes a space which is formed by a shutter storage section (shutter case 6) installed to the structure in an overhanging state, left and right side frames (shutter base frame 3+guide rail 4), and a floor FL. A seat board 7 of the shutter curtain 5 includes a flat part 71 that has a predetermined depth width extending indoors and outdoors, and a predetermined front width extending in the opening width direction. Inside of the flat part 71, a reinforcing member 73 is provided that extends in the width direction of the flat part 71.SELECTED DRAWING: Figure 9

Description

The present invention relates to a window shutter.

A window shutter is a shutter that opens and closes the space on the outdoor side of a window opening, and consists of left and right guide rails attached to the base frame of the left and right guide rails provided in a corbelled manner on the frame, and a shutter case provided in a corbelled manner on the frame. and a shutter curtain that can be rolled up on a winding shaft provided in the shutter case, and both ends of the shutter curtain in the width direction are guided by left and right guide rails to open and close the space on the outdoor side of the window opening. It looks like this.

In a normally used window shutter, the upper ends of the left and right guide rail base frames are fixed to the lower surface of the shutter case, and the lower ends are fixed by a drain plate (lower frame) extending in the width direction of the opening (Patent Document 1 ), the shutter curtain opens and closes a four-frame opening, and when the window shutter is fully closed, the seat plate at the lower end of the shutter curtain is located within the lower frame. Therefore, when the window shutter is fully closed, the entire seat plate is not exposed to the outside, and even if the seat plate is made of aluminum, it is less likely to deform than when it is directly exposed to the heat of a fire. Moreover, even if the window shutter is deformed, it deforms within the lower frame, so that a gap is less likely to be formed at the lower end of the window shutter in the fully closed position.

However, if the window shutter is installed on the outdoor side of a sweeping window, for example, the lower end of the shutter curtain in the fully closed position will land directly on the floor, and the lower end of the left and right guide rail base frames will There are some that do not have a drain plate connecting between them. With this type of window shutter, when the window shutter is fully closed, the entire seat plate at the bottom of the shutter curtain is exposed to the outside, so the heat from the fire can deform the seat plate, especially when the seat plate is made of aluminum. There is a possibility that a gap will be formed between it and the floor.

This may affect the fire protection performance of window shutters when fully closed.
JP2013-177743

The present invention is a window shutter of a type in which the seat plate at the lower end of the shutter curtain touches the floor, and when the window shutter is fully closed, thermal deformation of the seat plate in the event of a fire is suppressed, and a gap is formed at the lower end. The aim is to prevent this as much as possible.

The technical means adopted by the present invention are:
In a window shutter in which a shutter curtain opens and closes a space formed by a shutter storage section provided in a corbelled structure, left and right side frames, and a lower surface of the structure,
The seat plate of the shutter curtain includes a flat portion having a predetermined expected width extending in the indoor/outdoor direction and a predetermined expected width extending in the opening width direction,
A reinforcing material extending in the width direction of the flat part is provided inside the flat part,
It's a window shutter.
In one aspect, the lower surface of the frame is typically a floor surface, but may be, for example, a lower frame forming a lower part of the opening.

In one embodiment, the flat portion includes a hollow portion, and the reinforcing material is provided within the hollow portion.
Note that the internal space of the flat part does not need to be a completely hollow space; for example, a gap (narrower than the expected width of the reinforcing material) extending in the widthwise direction may be formed at the bottom of the internal space. good.

In one embodiment, the seat plate is made of aluminum, and the reinforcing material is made of a metal with a higher melting point than aluminum.

In one aspect, the flat portion includes a lower side located below the reinforcing material,
A thermal expansion fireproof member is provided on the lower surface of the lower side.
In one aspect, the flat part includes a hollow part, and the lower side is a lower surface part of the hollow part.
In one aspect, a cushioning material extending in the widthwise direction is provided on the lower surface of the hollow portion, and is located in the middle in the widthwise direction.
The thermal expansion fireproof member includes an outdoor thermal expansion fireproof member located on the outdoor side of the cushioning material, and an indoor thermal expansion fireproof member located on the indoor side of the cushioning material.

In the window shutter according to the present invention, by providing a reinforcing material on the flat part of the seat plate, even if the seat plate tries to deform due to heat during a fire, the reinforcing material suppresses thermal deformation (warping). When the window shutter is fully closed, the formation of a gap between the window shutter and the floor surface, which is disadvantageous in terms of fire prevention, is prevented as much as possible.

It is a longitudinal cross-sectional view of the window shutter concerning this embodiment. FIG. 2 is a cross-sectional view of a window shutter according to the present embodiment. FIG. 2 is a longitudinal cross-sectional view of a shutter housing section of a window shutter (fully open state) according to the present embodiment. FIG. 3 is a vertical cross-sectional view of a lower portion of the window shutter according to the present embodiment. FIG. 5 is a partially enlarged view of FIG. 4, showing the slat with the handle attached. It is a figure which shows the lower part of the front view of the window shutter in a fully closed state seen from the indoor side. It is a figure showing a handle. It is a figure showing the seat board concerning a 1st embodiment. It is a figure showing the seat board concerning a 2nd embodiment. It is a figure showing the seat board concerning a 3rd embodiment. It is a figure which shows the support structure of a case angle using an end hook metal fitting. It is a figure which shows the support structure (1st Embodiment) of a case angle using the intermediate|middle hook metal fitting based on 1st Embodiment. FIG. 2 is a front view showing a case angle support structure (first embodiment) using an end hook and an intermediate hook according to the first embodiment. It is a figure which shows the intermediate|middle hook metal fitting based on 1st Embodiment. The upper figure shows a support member attached to a case angle of the case angle support structure according to the first embodiment. The lower figure shows a support member attached to a case angle of a case angle support structure according to a second embodiment. The above figure shows a case angle assembly of the case angle support structure according to the first embodiment. The figure below shows a case angle assembly of a case angle support structure according to a second embodiment. It is a figure which shows the support structure (2nd Embodiment) of the case angle using the intermediate|middle hook metal fitting based on 2nd Embodiment. It is a front view which shows the support structure (2nd Embodiment) of a case angle using the end hook metal fitting and the intermediate|middle hook metal fitting based on 2nd Embodiment. It is a figure which shows the intermediate|middle hook metal fitting based on 1st Embodiment. It is a side view of the lower part of a side frame, and is a figure showing the gap formed in the lower part concerned. It is a sectional view of a lower part of a side frame, and is a figure seen from the bottom. It is a side view of the lower part of a side frame, and shows gap closing means (a 1st aspect) concerning a 1st embodiment. It is a side view of the lower part of the side frame, and shows the gap closing means (2nd aspect) based on 1st Embodiment. 23 is a cross-sectional view corresponding to FIG. 22. FIG. The right figure shows the first member, and the left figure shows the second member. A gap closing means formed by combining a first member and a second member is shown, the right figure shows a first aspect with a first height dimension, and the left figure shows a first aspect higher than the first height dimension. Figure 2 shows a second embodiment with a height dimension of 2; It is a side view of the lower part of a side frame, and shows gap closing means (a 1st aspect) concerning a 2nd embodiment. FIG. 28 is a cross-sectional view corresponding to FIG. 27; It is a side view of the lower part of a side frame, and shows gap closing means (a 2nd aspect) concerning a 2nd embodiment. 30 is a cross-sectional view corresponding to FIG. 29, in which the upper figure shows a state in which the estimated dimensions of the gap closing means have been determined, and the lower figure shows a state in which the estimated dimensions of the gap closing means are fixed. The left figure shows the first member, and the right figure shows the second member. A gap closing means formed by combining a first member and a second member is shown, the left figure shows a first aspect with a first expected dimension, and the right figure shows a second aspect with a second expected dimension larger than the first expected dimension. Figure 2 shows a second embodiment with estimated dimensions. It is a side view of the lower part of a side frame, and shows the state before a gap is closed by gap closing means concerning a 3rd embodiment. FIG. 34 is a cross-sectional view corresponding to FIG. 33; It is a side view of the lower part of a side frame, and shows the state where a gap is closed by gap closing means concerning a 3rd embodiment. 36 is a cross-sectional view corresponding to FIG. 35, in which the upper figure shows a state in which the estimated dimensions of the gap closing means have been determined, and the lower figure shows a state in which the estimated dimensions of the gap closing means are fixed. (A) shows the first unit (the state where the second element has moved up), (B) shows the second unit (the state where the fourth element has moved up), and (C) shows the first unit and the second unit. A gap closing means (with the second element and fourth element moved upward) formed by combining units is shown. (A) shows the second element of the first unit, (B) shows the first element of the first unit, (C) shows the fourth element of the second unit, and (D) shows the fourth element of the second unit. Indicates the third element. The gap closing means is shown by combining the first unit and the second unit. The left figure shows the state before it extends in the height direction and the perspective direction, and the right figure shows the state in which it extends in the height direction and the perspective direction. It shows.

[A] Overall structure of window shutter Embodiments of the present invention will be described in detail based on the drawings. FIG. 1 is a side view of a window shutter in a fully closed position according to this embodiment, and FIG. 2 is a cross-sectional view of the window shutter. A window shutter is a shutter installed on the outdoor side of a window device, and the window device according to this embodiment is a so-called sweep window. The sweep window includes, for example, two sliding doors or folding doors that open and close the window opening, and the lower ends of the window opening and the door reach near the lower end of the indoor space. The outdoor side of the window opening is a balcony. Note that the outdoor side of the window opening may be a terrace on the first floor of the building.

The window shutter is located above the window opening and has left and right brackets 1 attached to the frame (outer wall W) in a corbelled manner, a winding shaft 2 supported between the left and right brackets 1, and a winding shaft 2 attached to the outer wall W. The left and right guide rail base frames 3 in the width direction of the opening are attached in a corbelled manner, and the left and right guide rails 4 supported by the guide rail base frames 3 on the left and right sides in the width direction of the opening are connected at their upper ends to the winding shaft 2. The shutter curtain 5 is a shutter curtain 5 which is wound up/unrolled by a winding shaft 2, and whose widthwise ends are raised and lowered while being guided by a guide rail 4 to open and close a space on the outdoor side of a window opening. 5, and a shutter case 6, which is located above the window opening and is attached to the outer wall W in a corbelled manner, and stores the shutter curtain 5 wound around the left and right brackets 1 and the winding shaft 2. ing. The window shutter according to this embodiment is a manual type, and the shutter curtain 5 is manually raised and lowered to open and close the window opening.

The shutter curtain 5 of the window shutter is designed to close off the outdoor space of the window device formed in the frame of the building, and the space opened and closed by the window shutter covers the bottom surface of the shutter case 6 and the left and right sides. This is a space surrounded by the frame (guide rail base frame 3 + guide rail 4) and the balcony floor FL. That is, the window shutter according to this embodiment does not include a draining plate (lower frame).

The shutter curtain 5 is formed by vertically connecting long slats 50 extending in the width direction of the opening, and a seat plate 7 is provided at the lower end. In the shutter curtain 5, both ends of the slats 50 in the width direction move up and down while being guided by the grooves of the guide rail 4 to open and close the opening, and when the opening is fully closed, the seat plate 7 at the lower end lands on the floor FL. It is supposed to be done. The floor surface FL of the balcony according to this embodiment is gently inclined downward from the indoor side toward the outdoor side. When the opening is fully open, the shutter curtain 5 is housed in the shutter case 6 in a wound state wound around the winding shaft 2 (see FIG. 3). The window shutter according to this embodiment is a manual type, and the winding shaft 2 is equipped with a balance spring (not shown).

As shown in FIG. 1, in this embodiment, the floor surface FL of the balcony and the lower parts of the left and right side frames (guide rail base frame 3 + guide rail 4) are located below the lower end of the window opening. , a lower wall surface W' is vertically formed at the indoor end of the floor surface FL. In this embodiment, the lower wall surface W' is located closer to the indoor side than the outer wall W to which the guide rail base frame 3 and the shutter case 6 are attached. A waterproof layer 20 is formed in an L-shape in cross section from the floor surface FL to the lower wall surface W'. A space is formed between the outer wall W and the lower wall surface W'. This space may be closed by a closing mechanism, and details of the closing mechanism will be described later.

In the window device 8, the window sash frame forming the window opening is formed from an upper frame 80, a lower frame 81, and left and right vertical frames 82, 83, and includes two sliding door bodies 84. , 85 to open and close the window opening. A screen door 86 is provided on the outdoor side of the window sash frame. As shown in FIG. 1, in this embodiment, the outdoor door body 84 is located on the outdoor side rather than the lower wall surface W', and approximately half of the lower frame 81 in the forward direction is located on the lower wall surface W'. On the other hand, it is corbelled to the outside.

[B] Manual operation mechanism The window shutter according to this embodiment is a manual type, and the shutter curtain 5 is raised and lowered by manual operation to open and close the opening. When the opening is fully open (see FIG. 3), the window opening on the indoor side is at least partially opened (the door body 84 is partially opened), and the initial force for manually moving the seat plate 7 downward is applied. When the shutter curtain 5 is pulled out downward, the shutter curtain 5 in the winding state is unrolled with the rotation of the winding shaft 2 and manually closed. By pushing the shutter curtain 5 downward, the seat plate 7 of the shutter curtain 5 lands on the floor, and the opening becomes fully closed.

When the shutter curtain 5 descends, the balance spring is biased in the direction in which the winding shaft 2 winds up the shutter curtain 5 (the direction in which the shutter curtain 5 rises), and the seat plate 7 of the shutter curtain 5 lands on the floor. When the shutter curtain 5 is in the fully closed position, the locking device 11 is activated to be in a locked state, and the raising of the shutter curtain 5 is restricted.

In the locked state, the shutter curtain 5 in the fully closed position is biased in the upward direction (winding direction) (so-called "upward direction"). The locking device 11 is unlocked by pulling the string member 114 upward and rotating the lever 113 upward, and the force of pulling the string member 114 upward applies an initial force (in the upward direction) to the shutter curtain 5. When applied, the shutter curtain 5 rises while being wound around the winding shaft 2 due to the biasing force of the balance spring, and when the shutter curtain 5 is manually opened, it assumes a fully open position.

In this embodiment, since the floor surface FL and the lower part of the side frame (guide rail base frame 3 + guide rail 4) are located below the window opening, the shutter curtain 5 is closed completely when the window shutter is closed. In the posture, it includes an upper part 5A located above the lower end of the window opening, and a lower part 5B located below the lower end of the window opening (see FIG. 1). In addition, since the gap between the lower frame 81 of the window sash frame and the shutter core (the vertical plane on which the shutter curtain 5 in the raised/lowered or fully closed position is located) is limited, it is difficult to remove the hand from the gap between the slat 50 and the lower frame 81. It is difficult to manually push the seat plate 7 down to the floor FL by inserting the seat plate 7. That is, if you cannot reach the gap between the lower frame 81 of the window sash frame and the slat 50 near the fully closed state, it will be difficult to push the window sash frame into the fully closed state.

In this embodiment, a handle 9 is provided on the indoor side surface of a predetermined slat 50 forming the upper portion 5A of the shutter curtain 5, and when the shutter curtain 5 is lowered, the handle 9 is manually pulled downward from the window opening. It is possible to move the shutter curtain 5, and when the seat plate 7 of the shutter curtain 5 is on the floor, the handle 9 and the slat 50 provided with the handle 9 are located at the window opening (above the lower frame 81). There is. That is, the user can put his/her hand on the handle and push the slat downward to take the fully closed position. In this embodiment, a handle 9 is provided on the fourth slat 50 from the bottom (see FIG. 4). The handle 9 according to this embodiment is made of steel (stainless steel, etc.).

FIG. 3 shows the winding state of the shutter curtain 5 when the opening is fully open. The shutter curtain 5 is wound around the winding shaft 2 such that the outdoor side of the slat 50 is located close to the winding shaft 2 and the indoor side of the slat 50 is located far from the winding shaft 2 when the opening is fully closed.

As shown in FIG. 3, the shutter curtain 5 has an outermost portion 5C extending from the top (the part closest to the top surface of the shutter case) to the seat plate 7 located on the bottom surface of the shutter case 6 in the rolled-up state when the opening is fully opened. The handle 9 is provided on the indoor side surface of the slat 50 forming the upper portion 5A and the outermost portion 5C. By selecting the handle 9 from among the slats 50 forming the outermost portion 5C, the handle 9 does not come into contact with the top plate 60 or front plate 61 of the shutter case 6 when the shutter curtain 5 is wound up. , there is no problem in winding up the slat 50.

The handle 9 is provided at a position offset from the widthwise center of the slat 50 toward the widthwise end (on the side closer to one guide rail 4), and is placed in a state where the window opening is partially opened (the door body 84 ), manual operation is possible from indoors. In this embodiment, the handle 9 is located above a lever 113 of a locking device provided on the seat plate 7. That is, the lever 113 of the locking device is also provided at a position offset from the widthwise center of the slat 50 toward the widthwise end (on the side closer to one guide rail 4).

The locking device 11 includes a locking piece 11A that can be retracted from both lengthwise ends of the seat plate 7, and when the opening is fully closed, the locking piece 11A is attached to the locked piece 11B in the guide groove on the lower side. By coming into contact with each other, a locked state is achieved (see FIGS. 2 and 6). More specifically, the locking device 11 is provided with left and right latch bars 110, 111 each having a locking portion 11A at the tip thereof, and is provided at the base ends of the left and right latch bars 110, 111, and is configured to move the latch bars 110, 111 into a protruding position and a retracted position. The latch bars 110 and 111 are slidable in a latch bar accommodating part 700 extending in the width direction on the surface of the seat plate 7. The locking piece is biased by a spring to maintain the protruding posture, and in conjunction with the upward rotation of the lever 113 of the operating section 112, the balance spring contracts and the locking piece retracts. The locked state will be released.

A proximal end of a string-like member 114 is connected to the lever 113, a gripping portion 115 is provided at the tip of the string-like member 114, and a magnet is provided on the gripping portion 115 as a hooking means. The magnet of the grip part 115 is, for example, magnetically attached to the slat 50 on which the handle 9 is provided, adjacent to the handle 9, and when the opening is fully closed, the grip part 115 is attached to the slat 50 adjacent to the handle 9. It is located above. The slat 50 to which the grip portion 115 is magnetically attached is not limited to the slat 50 provided with the handle 9, but may be another slat 50 forming the upper portion 5A located above the lower end of the window opening. If you want to open the window shutter when the opening is fully closed, grab the grip part 115 and pull the string member 114 upward, the lever 113 will rotate upward and the locked state will be released, and at the same time, An initial force in the upward direction is applied to the shutter curtain 5, and the shutter curtain 5 rises while being wound around the winding shaft 2 due to the biasing force of the balance spring, and lifts the shutter curtain 5 by holding the seat plate 7. This opens the window shutter.

The handle 9 is fixed to the indoor side surface of a predetermined slat 50 by a fixing means. The slat 50 according to the present embodiment includes a main body 500 in the shape of a curved plate, an upper interlock part 501 integrally formed at the upper end of the main body 500, and a lower interlock part 501 integrally formed at the lower end of the main body 500. 502. The main body portion 500 has a dish shape in cross section and is curved so as to bulge toward the indoor side. The upper part and the lower part of the main body part 500 of the slat 50 are located on the outdoor side (the side farther from the frame) than the central part. It is located on the side closer to the main body.

As shown in FIGS. 5 and 7, the handle 9 according to the present embodiment includes an upper horizontal piece 90, a lower horizontal piece 91, a vertical surface part 92, a main body having a U-shape in cross section, and a vertical It consists of a handle piece 93 extending horizontally from the surface portion 92 to the opposite side of the upper horizontal piece 90 and the lower horizontal piece 91.

The handle 9 has an upper horizontal piece 90 that contacts or locks the upper part of the main body 500 (base end of the upper interlock part), and a lower horizontal piece 91 of the lower part of the main body 500 (the base end of the lower interlock part). The vertical surface part 92 is fixed to the indoor side part of the slat 50 by a fixing means with the vertical surface part 92 in contact with the central part of the main body part 500. ing.

The handle 9 locks the tip of the upper horizontal piece 90 with the upper part of the main body 500, the tip of the lower horizontal piece 91 and the lower part of the main body 500, and the vertical surface part 92 and the lower part of the main body 500. It contacts the slat 50 at three points connected to the central part, and when the handle piece 93 of the handle 9 is pushed downward, the downward force is transmitted to the slat 50 in a good and stable manner, and the force is biased toward the handle 9. The durability of the handle 9 is also good because no force is applied.

The fixing means according to this embodiment consists of a flat screw 94 and a cap nut 95, and by suppressing the expected dimensions of the fixing means, the fixing means can be attached to the winding and lintel portions of the shutter curtain 5 (in FIG. 3, the shutter case 6 The opening formed between the lower surface plate 62 and the lower surface plate 67 of the main body side) is designed so as not to impede the movement up and down through the opening. In a side view of the slat 50 to which the handle 9 is attached, the flat screw 94 fits within the thickness of the main body 500, and the cap nut 95 fits inside the handle piece 93 of the handle 9.

In the manual closing mechanism configured as described above, when opening the window shutter from the fully closed opening state, the door body 84 of the window device 8 is opened and the grip portion 115 is grasped from the window opening. When the string member 114 is pulled upward, the lever 113 rotates upward to release the locked state, and at the same time, an initial force in the upward direction is applied to the shutter curtain 5, and the shutter curtain 5 is attached with a balance spring. Due to the force, the window shutter rises while being wound around the winding shaft 2, and by appropriately applying a rising force to lift the seat plate 7 upward, the window shutter becomes in an open state. When closing the window shutter from the fully open state, open the door body 84 of the window device 8, put your hand on the indoor side portion of the flat portion 71 of the seat plate 7 from the window opening, and close the seat plate 7 and the window shutter. The slats 50 are manually lowered while applying an initial force so as to be pulled down, and after the seat plate 7 has been lowered below the lower frame 81 of the window opening, the hand is placed on the handle 9 from the window opening. Then, push the slat 50 downward to bring it into a fully closed state.

[C] Seat structure
[C-1] First Embodiment As shown in FIG. 8, the seat plate 7 according to the first embodiment is an elongated member extending in the opening width direction, and includes a vertical portion 70 and a lower end of the vertical portion 70. and a flat part 71 integrally formed with the main body, and has a generally inverted T-shaped cross-sectional shape. The vertical portion 70 has a thickness smaller than the groove width of the guide rail 4, and has a width dimension (length dimension) such that both end portions in the length direction are located within the groove of the guide rail 4. The flat portion 71 has a predetermined expected width extending in the indoor/outdoor direction, and both end portions in the expected width direction are located on the outside of the guide rail 4. The vertical part 70 of the seat plate 7 is located on the shutter core, and the flat part 71 is divided into an outdoor part and an indoor part with the shutter core in between.In the embodiment shown, the expected dimensions of the outdoor part are as follows. , larger than the expected dimensions of the indoor side part.

A latch bar accommodating part 700 is formed on the indoor side surface of the vertical part 70, extending in the width direction (length direction) of the seat plate 7, and the accommodating part 700 has a locking part at the tip. Left and right latch bars 110 and 111 with 11A are accommodated. In the housing section 700, an operating section 112 is provided on the side closer to one guide rail 4. A stopper 701 is provided on the outdoor side surface of the vertical portion 70, located on the left and right sides in the width direction, and has a contact surface (upper surface) made of a horizontal surface. The contact surface comes into contact with the lower surface (lower surface plate 62) of the shutter case 6 (FIG. 3).

The flat part 71 includes a horizontal upper surface part 710, a thick outdoor hanging piece 711 and an indoor hanging piece 712 that hang integrally from the outdoor end and the indoor end of the upper surface part 710, respectively, and the upper surface. The mounting part 713 has a mounting part (pocket part) 713 of a buffer member 714 located in the middle of the width direction (front-back direction) of the seat plate. The upper end portion of a fin-shaped buffer member 714 extending in the direction) is attached. The buffer member 714 has a relatively large height so that it can be deformed following the inclination of the floor surface FL. A cover member 715 is attached to the longitudinal end of the flat portion 71 of the seat plate 7 .

[C-2] Second Embodiment As shown in FIG. 9, the seat plate 7 according to the second embodiment is an elongated member extending in the opening width direction, and includes a vertical portion 70 and a lower end of the vertical portion 70. and a flat part 72 integrally formed with the main body, and has a generally inverted T-shaped cross-sectional shape. The vertical portion 70 has a thickness smaller than the groove width of the guide rail 4, and has a width dimension (length dimension) such that both end portions in the length direction are located within the groove of the guide rail 4. The flat portion 72 has a predetermined expected width extending in the indoor/outdoor direction, and both end portions in the expected width direction are located on the outside of the guide rail 4. The vertical part 70 of the seat plate 7 is located on the shutter core, and the flat part 72 is divided into an outdoor part and an indoor part with the shutter core in between.In the embodiment shown, the expected dimensions of the outdoor part are as follows. , larger than the expected dimensions of the indoor side part.

A latch bar accommodating portion 700 is formed on the indoor side surface of the vertical portion 70, extending in the length direction (opening width direction) of the seat plate 7, and the accommodating portion 700 has a locking portion 11A at the tip. Left and right latch bars 110 and 111 are housed therein. In the housing section 700, an operating section 112 is provided on the side closer to one guide rail 4. A stopper 701 is provided on the outdoor side surface of the vertical portion 70, located on the left and right sides in the width direction, and has a contact surface (upper surface) made of a horizontal surface. The contact surface comes into contact with the lower surface (lower surface plate 62) of the shutter case 6 (FIG. 3).

The flat portion 72 includes a hollow portion extending in the widthwise direction (lengthwise direction) of the seat plate 7, and a long reinforcing member 73 extending in the widthwise direction of the flat portion 72 is provided in the hollow portion. It is provided. The reinforcing member 73 has a U-shape in cross section, including an upper surface portion 730, an outdoor side hanging piece 731, and an indoor side hanging piece 732 that hang integrally from the outdoor end and the indoor end of the upper surface. There is. The cross-sectional shape of the reinforcing material 73 is not limited, and may be, for example, an elongated plate with a predetermined thickness. The center portion of the reinforcing member 73 in the viewing direction is located on the shutter core.

The seat plate 7 according to this embodiment is made of aluminum, and the reinforcing material 73 is made of a metal (for example, steel) having a higher melting point than aluminum. By providing the reinforcing material 73 on the flat part 72 of the seat board 7, even if the seat board 7 tries to deform due to heat during a fire, the reinforcing material 73 suppresses thermal deformation (warping) and the floor The formation of a gap with the surface FL that is disadvantageous in terms of fire prevention is prevented as much as possible.

The flat part 72 includes a horizontal upper surface part 720, a thick outdoor hanging piece 721, an indoor hanging piece 722, which hang integrally from the outdoor end and the indoor end of the upper surface part 720, respectively. The upper surface part 720 includes an intermediate hanging piece 723 that hangs down from the upper surface part 720 while facing away from the outer hanging piece 721 , and a lower surface part 724 that horizontally connects the intermediate vertical piece 723 and the indoor side hanging piece 712 . A hollow portion is formed by the intermediate hanging piece 723, the indoor side hanging piece 722, and the lower surface portion 724, and a reinforcing member 73 is provided in the hollow portion. By housing the reinforcing material 73 in the hollow portion, the reinforcing material 73 can be provided on the seat plate 7 without being fixed.

In the illustrated embodiment, the hanging dimension of the intermediate hanging piece 723 is shorter than that of the outdoor side hanging piece 721 and the indoor side hanging piece 722, and the lower end of the intermediate hanging piece 723 is the lower end of the outdoor side hanging piece 721 and the indoor side hanging piece 722. The lower surface portion 724 is also located slightly above the lower end of the indoor side hanging piece 722. The manner in which the hollow portion is formed is not limited to the illustrated embodiment.

A cushioning member attachment portion (pocket portion) 725 is formed at the middle of the lower surface portion 724 of the flat portion 72 in the widthwise direction (front-back direction). The upper end portion of a fin-shaped buffer member 726 extending in the longitudinal direction of the plate 7 is attached. In the illustrated embodiment, the buffer member 726 has a smaller size than the buffer member 714, but the shape and dimensions of the buffer member 726 are not limited, and may be long like the buffer member 714. A cover member 727 is attached to the lengthwise end of the flat portion 72 of the seat plate 7, and the end of the hollow portion in the width direction is closed.

[C-3] Third Embodiment As shown in FIG. 10, the seat plate 7 according to the third embodiment is an elongated member extending in the opening width direction, and includes a vertical portion 70 and a lower end of the vertical portion 70. A flat portion 74 is integrally formed with the flat portion 74, and has a generally inverted T-shaped cross-sectional shape. The vertical portion 70 has a thickness smaller than the groove width of the guide rail 4, and has a width dimension (length dimension) such that both end portions in the length direction are located within the groove of the guide rail 4. The flat portion 74 has a predetermined expected width extending in the indoor/outdoor direction, and both end portions in the expected width direction are located on the outside of the guide rail 4. The vertical part 70 of the seat plate 7 is located on the shutter core, and the flat part 74 is divided into an outdoor part and an indoor part with the shutter core in between.In the embodiment shown, the expected dimensions of the outdoor part are as follows. , smaller than the estimated dimensions of the indoor part. Note that the vertical portion 70 may rise from the center of the expected width of the flat portion 74.

A latch bar accommodating portion 700 is formed on the indoor side surface of the vertical portion 70, extending in the length direction (opening width direction) of the seat plate 7, and the accommodating portion 700 has a locking portion 11A at the tip. Left and right latch bars 110 and 111 are housed therein. In the housing section 700, an operating section 112 is provided on the side closer to one guide rail 4. A stopper 701 is provided on the outdoor side surface of the vertical portion 70, located on the left and right sides in the width direction, and has a contact surface (upper surface) made of a horizontal surface. The contact surface comes into contact with the lower surface (lower surface plate 62) of the shutter case 6 (FIG. 3).

The flat portion 74 includes a hollow portion extending in the widthwise direction (lengthwise direction) of the seat plate 7, and a long reinforcing member 75 extending in the widthwise direction of the flat portion 74 is provided in the hollow portion. It is provided. The reinforcing member 75 has a U-shape in cross section, including an upper surface portion 750, an outdoor side hanging piece 751, and an indoor side hanging piece 752 that hang integrally from the outdoor end and the indoor end of the upper surface portion 750. ing. The cross-sectional shape of the reinforcing material 75 is not limited, and may be, for example, an elongated plate with a predetermined thickness.

The seat plate 7 includes a flat portion 74 and is made of aluminum, and the reinforcing material 75 is made of a metal (for example, steel) having a higher melting point than aluminum. By providing the reinforcing material 75 on the flat part 74 of the seat board 7, even if the seat board 7 tries to deform due to heat during a fire, the reinforcing material 75 suppresses thermal deformation (warping) and the floor The formation of a gap with the surface FL that is disadvantageous in terms of fire prevention is prevented as much as possible.

In the illustrated embodiment, the height dimension of the flat portion 74 according to the third embodiment is greater than the height dimension of the flat portion 72 according to the second embodiment, and the expected width dimension is greater than the expected width dimension of the flat portion 72. It's also small.

The flat part 74 includes a horizontal upper surface part 740, a thick outdoor hanging piece 741, an indoor hanging piece 742, which hang integrally from the outdoor end and the indoor end of the upper surface part 740, respectively. It includes a lower surface part 743 that horizontally connects the lower part of the outer hanging piece 741 and the lower part of the indoor hanging piece 742, and includes an upper surface part 740, an outdoor hanging piece 741, an indoor hanging piece 742, A hollow portion is formed from the lower surface portion 743, and a reinforcing material 75 is provided in the hollow portion. By housing the reinforcing material 75 in the hollow portion, the reinforcing material 75 can be provided on the seat plate 7 without being fixed. Note that the manner in which the hollow portion is formed is not limited to the illustrated embodiment.

The lower surface portion 743 is located slightly above the lower ends of the outdoor side hanging piece 741 and the indoor side hanging piece 742, and three pocket portions are formed on the lower side of the lower side portion 743 in the expected width direction. . A cushioning member attachment portion (pocket portion) 744 is provided in the middle of the expected width dimension (front-back direction) of the lower surface portion 743 of the flat portion 74, and the attachment portion 744 has a fin extending in the opening width direction. The upper end portion of the shaped buffer member 745 is attached. In the illustrated embodiment, the buffer member 745 has a smaller size than the buffer member 714, but the shape and dimensions of the buffer member 745 are not limited, and may be long like the buffer member 714.

In the lower surface part 743, an outdoor pocket part is formed on the outdoor side of the mounting part 744, and an indoor pocket part is formed on the indoor side, and an outdoor thermal expansion fireproof member 746 is provided in the outdoor pocket part. An indoor thermal expansion fireproof member 747 is provided in the indoor pocket section. A cover member 748 is attached to the lengthwise end of the flat portion 74 of the seat plate 7, and the end of the hollow portion in the width direction is closed.

A buffer member 745 is provided on the lower surface part 743 of the hollow part of the flat part 74 of the seat plate 7, and is located in the middle of the width direction and extends in the width direction (the length direction of the seat plate 7). The outdoor thermal expansion fireproof member 746 is located on the outdoor side of the buffer member 745, and the indoor thermal expansion fireproof member 747 is located on the indoor side of the buffer member 745, and is provided so as to sandwich the buffer member 745 from the front and back directions. be. The outdoor thermal expansion fireproof member 746 is located on the outdoor side with respect to the shutter core, and the indoor thermal expansion fireproof member 747 is located on the indoor side with respect to the shutter core.

By providing thermal expansion fireproof members 746 and 747 on the lower surface portion 743 of the seat plate 7 adjacent to the buffer member 745, even if the seat plate 7 is thermally deformed (warped) (this embodiment (Please note that warping is suppressed by the reinforcing material 75), the thermal expansion fireproof members 746 and 747 foam to close the gap between the lower surface portion 743 of the seat plate 7 and the floor surface FL. Prevent as much as possible the formation of gaps that are disadvantageous in terms of fire protection.

In addition, in the event of a fire, the thermal expansion fireproof members 746 and 747 foam to sandwich the buffer member 745 from inside and outside, closing the gap between the lower surface part 743 of the seat plate 7 and the floor surface FL, and The formation of gaps that are disadvantageous in terms of fire prevention should be prevented as much as possible, and even if the buffer member 745 melts due to the heat during a fire, the melted buffer member 745 should not be ignited. prevent this as much as possible. Note that the manner in which the thermal expansion fireproof members are arranged is not limited; for example, even if only one of the thermal expansion fireproof members 746 and 747 installed horizontally in the expected width direction is provided, It has the effect of closing the gap.

[D] Case support structure
[D-1] Shutter case The shutter case 6 includes a top plate 60, a front plate 61, a bottom plate 62, and left and right side plates (not shown), and is supported on a frame fixed to the frame (outer wall W). They are connected to form a box shape. The structural members of the shutter case 6 according to this embodiment are made of steel (steel, stainless steel, etc.). As shown in FIG. 3, a winding shaft 2 is provided inside the shutter case 6, and when the window shutter is fully open, the shutter curtain 5 is housed inside the shutter case 6 while being wound around the winding shaft 2. be done. An opening through which the shutter curtain 5 moves up and down is formed on the frame side of the lower plate 62, and when the window shutter is fully open, the seat plate 7 at the lower end of the shutter curtain 5 is located in the opening.

[D-2] Frame The framework of the shutter case 6 consists of left and right brackets 1 and a plurality of case angles connected to bridge the left and right brackets 1. The bracket 1 includes a substantially trapezoidal surface portion 10 having a shape and dimensions corresponding to the cross-sectional shape and dimensions of the shutter case 6, and a rear piece 100 that is bent upwardly from the surface portion 10 at the periphery of the surface portion 10. , an upper piece 101, a front piece 102, and a lower piece 103.

As shown in FIG. 3, the plurality of case angles according to the present embodiment are arranged horizontally in the length direction of the winding shaft 2 on the upper side and indoor side (the side closer to the outer wall W) of the shutter case 6 in a cross-sectional view. A first case angle 63 extends, a second case angle 64 extends horizontally in the length direction of the winding shaft 2 on the upper side/outdoor side (the side far from the outer wall W) of the shutter case 6, and The third case angle 65 extends horizontally in the length direction of the winding shaft 2 on the indoor side (the side close to the outer wall W), and the winding shaft 2 extends horizontally in the length direction of the winding shaft 2 on the lower side/outdoor side of the shutter case 6 (the side far from the outer wall W). and a fourth case angle 66 extending horizontally along the length of the case.

The lengthwise ends of the first case angle 63 are connected to the upper ends of the rear pieces 100 of the left and right brackets 1, and the lengthwise ends of the second case angle 64 are connected to the front pieces of the left and right brackets 1. 102, the lengthwise end of the third case angle 65 is connected to the indoor side part of the lower piece 103, and the lengthwise end of the fourth case angle 66 is connected to the front end. It is connected to the lower end portion of the piece 102.

The frame assembled from the left and right brackets 1, the first case angle 63, the second case angle 64, the third case angle 65, and the fourth case angle 66 is attached to a predetermined location on the outer wall W of the frame via the first case angle 63. It is connected to a plurality of hooks that are spaced apart in the width direction and fixed to the site.

[D-3] First case angle The first case angle 63 is an elongated member extending in the width direction of the shutter case 6, and has a vertically extending rear surface 630 and an outdoor side (from the upper end of the rear surface 630). an upper piece 631 that extends in the direction away from the outer wall W), a hanging piece 632 that hangs downward from the tip of the upper piece 631, and a lower piece 633 that extends from the lower end of the back part 630 toward the outdoors (in the direction away from the outer wall W); It is formed from. The first case angle 63 is a so-called C-type case angle.

A tip portion 600 (a portion close to the outer wall W) of the top plate 60 of the shutter case 6 is placed on the upper piece 631 of the first case angle 63 . A notch 634 (see FIG. 16) is formed at the base end portion of the upper piece 631 of the first case angle 63 (the corner with the back surface portion 630) to correspond to the hooking fitting. This is a hook on the upper side of the angle 63.

As shown in FIGS. 13 and 18, the plurality of hooks according to the present embodiment include left and right end hooks 12 and an intermediate hook 13. Both ends of the first case angle 63 in the length direction are hooked to the left and right end hooks 12 , and the central portion in the length direction is hooked to the intermediate hook 13 .

As shown in FIG. 16, the support member 14 is fixed to the longitudinally central portion of the back surface 630 of the first case angle 63, and the first case angle 63 and the support member 14 are integrated. The support member 14 includes a lower portion located below the lower piece 633 of the first case angle 63, and the lower portion of the support member 14 is locked to a locked portion on the lower side of the intermediate hook 13. It looks like this.

[D-4] End hooking metal fitting The end hooking metal fitting 12 has a surface portion 120 fixed to the frame (outer wall W), a hooked piece 121 integrally formed in a folded shape on the upper end of the surface portion 120, and the surface portion 120. The upper side of the first case angle 63 is hooked to the hooked piece 121, the rear piece 100 of the bracket 1 is brought into contact with or close to the surface part 120, and the rear piece 122 is folded back at the lower part of the bracket. The upwardly inclined piece 1000 at the lower end of the piece 100 is brought into contact with the inclined piece 122 and fixed with a screw. Such an end hooking fitting 12 is publicly known, and for the configuration of the end hooking fitting, reference can be made to JP-A-2017-31597.

Since the tip portion 600 (a portion close to the outer wall W) of the top plate 60 of the shutter case 6 is placed on the upper piece 631 of the first case angle 63, the load of the shutter case 6 acts on it. If the central portion of the first case angle 63 in the longitudinal direction is displaced in a direction away from the frame, there is a risk that the shutter case 6 will fall. In this embodiment, the holding force of the shutter case 6 is improved by supporting the first case angle 63, on which the load of the shutter case 6 acts, with hooks at both lengthwise ends and at the center.

[D-5] First case angle support structure using intermediate hook fitting The intermediate hook fitting 13 has a surface portion 130 fixed to the frame (outer wall W) and a cover integrally formed in a folded shape on the upper end of the surface portion 130. It includes a latching piece 131 and a latching portion located below the latching piece 131 and formed on the surface portion 130, and the upper side of the first case angle 63 is latched to the latching piece 131. and the lower side is locked to the locked part. As described above, the support member 14 is fixed to the longitudinal center portion of the back surface 630 of the first case angle 63, and the support member 14 is located below the lower piece 633 of the first case angle 63. The lower portion of the support member 14 is configured to be locked to the locked portion on the lower side of the intermediate hook 13 (see FIG. 16).

[D-5-1] First Embodiment As shown in FIG. 14, the intermediate hook 13 according to the first embodiment has a vertically rectangular surface portion 130 and a folded-back shape integrally formed on the upper end of the surface portion 130. A hooked piece 131, an opening 132 formed in the surface portion 130 and located below the hooked piece 131, and a protruding piece 133 located below the opening 132 and extending upright from the surface portion 130. We are prepared. A protruding piece 133 formed to protrude upwardly from the surface portion 130 of the intermediate hook 13 serves as a lower locked portion.

As shown in the upper diagram of FIG. 15, the support member 14 according to the first embodiment has a horizontally rectangular surface portion 140 and a lower end of the surface portion 140 that is inclined downwardly to be spaced apart from the frame (outer wall W). It is formed from an inclined piece 141, a lower piece 142 extending from the lower end of the inclined piece 141 toward the frame (outer wall W), and a bent piece 143 extending downward from the tip of the lower piece 142.

As shown in the upper diagram of FIG. 16, the surface portion 140 of the support member 14 is fixed to the longitudinal center portion of the back surface portion 630 of the first case angle 63 in an overlapping state (in the illustrated embodiment, the surface portion 140 is fixed with a rivet). fixed, but other means may be used, e.g. by welding). The lower portion of the support member 14 (the inclined piece 141 , the lower piece 142 , and the bent piece 143 ) is located below the lower piece 633 of the first case angle 63 .

As shown in FIG. 12, in the first embodiment, the lower end of the bent piece 143 at the tip of the lower piece 142 of the support member 14 is located within the opening 132 formed in the surface portion 130 of the intermediate hook 13. , the proximal part of the lower piece 142 (the side far from the body, the side close to the inclined piece 141) is supported by the upper end of the protruding piece 133 of the intermediate hook 13, and the shutter case acts on the first case angle 63. It is designed to support a load of 6. Furthermore, the hanging surface of the bent piece 143 of the support member 14 comes into contact with the outer wall W, resulting in a more stable support state.

The first case angle 63 is hooked to the hooked piece 131 at the upper notch 634, and has a protruding piece on the base end side of the lower piece 142 of the support member 14 that is integrated with the first case angle 63. The upper end of 133 is locked or abutted from below, and the upper locked piece 131 is deformed to open (for example, due to thermal deformation due to heat during a fire), and the first case angle 63 and support member 14 are Even when an attempt is made to move away from the body, the locked state between the lower piece 142 and the protruding piece 133 is maintained, and the lower locked state is prevented from coming off. Furthermore, if the lower part of the first case angle 63 (the lower part of the support member 14) is separated from the frame, the bent piece 143 of the lower part of the support member 14 will be caught on the protruding piece 133. There is.

[D-5-2] Second Embodiment As shown in FIG. 19, the intermediate hook 13 according to the second embodiment has a vertically rectangular surface portion 130 and a folded-back shape integrally formed on the upper end of the surface portion 130. It includes a hooked piece 131 and an opening 132 located below the hooked piece 131 and formed in the surface portion 130. The lower locked portion is comprised of the lower edge of the opening 132 formed in the surface portion 130 of the intermediate hook 13.

As shown in the lower diagram of FIG. 15, the support member 14 according to the second embodiment includes a horizontally rectangular surface portion 140, and an inclined piece 141 that slopes downwardly away from the frame at the lower end of the surface portion 140. It consists of a lower piece 142 extending from the lower end of the inclined piece 141 toward the frame.

As shown in the lower diagram of FIG. 16, the surface portion 140 of the support member 14 is in contact with the center portion in the longitudinal direction of the back portion 630 of the first case angle 63 and is fixed in an overlapping state (in the illustrated embodiment, it is fixed with a rivet). (Although other means, e.g. welding, may also be used). The lower portion of the support member 14 (the inclined piece 141 and the lower piece 142) is located below the lower piece 633 of the first case angle 63.

As shown in FIG. 17, in the second embodiment, the distal end portion (the side closer to the body, the side farther from the inclined piece 141) of the lower piece 142 of the support member 14 is formed on the surface portion 130 of the intermediate hook 13. It is latched and supported by the lower edge of the opening 132 and supports the load of the shutter case 6 acting on the first case angle 63.

The first case angle 63 is hooked to the hooked piece 131 at the upper notch 634, and the tip of the lower piece 142 of the support member 14 integrated with the first case angle 63 is in the opening 132. It is locked or abutted on the lower edge from above.

[E] Side frame of window shutter The side frame of the window shutter according to the present embodiment includes a guide rail base frame 3 extending from the outer wall W, and a guide rail 4 connected to the tip side of the guide rail base frame 3. It consists of and. Although the guide rail base frame 3 and the guide rail 4 according to this embodiment are formed from aluminum shapes, the materials of the guide rail base frame 3 and the guide rail 4 are not limited. Below, the configurations of the guide rail base frame 3 and the guide rail 4 according to this embodiment will be specifically explained.

[E-1] Guide rail base frame The guide rail base frame 3 is a long member that extends perpendicularly to the height direction of the opening, and is fixed to the outer wall W as shown in FIG. a surface 30 , an outer prospect side 31 extending in the prospect direction from the outside of the proximal finding surface 30 away from the outer wall W; an intermediate side 33 extending from the tip of the inside side 32 in a direction away from the outside side 31; It consists of an extending tip prospect piece 34. The outer prospective side 31 forms a facing surface of the side frame, and a locking piece 310 is integrally formed at the tip of the outer prospective side 31. The tip end piece 34 serves as a connecting piece with the guide rail 4.

A reinforcing member 15 having a U-shape in cross section is fixed inside the lower portion of the guide rail base frame 3 . The reinforcing member 15 includes a facing side 150, an outer facing side 151 extending in the facing direction, and an inner facing side 152, and the facing side 150 is connected to the facing side 150 of the base end side facing surface 30 of the guide rail base frame 3. the inner surface, the outer prospective side 151 is brought into contact with or close to the inner surface of the outer prospective side 31 of the guide rail base frame 3, and the inner prospective side 152 is brought into contact with the inner surface of the inner prospective side 32 of the guide rail base frame 3. They are fixed with screws when they are in contact.

[E-2] Guide rail The guide rail 4 is a long member that extends perpendicularly to the height direction of the opening, and as shown in FIG. 21, the side far from the outer wall W (outdoor side) 40, the side near the outer wall W (outdoor facing side) 41, and the bottom 42, and the shutter has a substantially U-shaped shape in plan view. Guide grooves are formed to receive both ends of the curtain 5 in the width direction and guide them in the vertical direction.

An extending side 400 extending beyond the bottom side 42 in a direction away from the opening is integrally formed on the base end side of the side side 40, and from the side side 40 and the extending side 400, the facing surface of the side frame is formed. is formed. An end portion of the extending side 400 is bent toward the indoor side, and an engaging piece 401 is integrally formed therein. An extension piece 410 extending toward the indoor side is integrally formed on the side edge 41, and the extension piece 410 serves as a connection piece with the guide rail base frame 3.

[E-3] Side frame guide rail A side frame is formed from the base frame 3 and the guide rail 4. The guide rail base frame 3 is fixed to the frame (outer wall W) with a plurality of screws 300 in the height direction with the base end side facing surface 30 in contact with the outer wall W. It is set up as a carryout. The height dimension of the reinforcing member 15 is larger than the height dimension of the rising part of the waterproof layer 20 (the height position L of the upper end is shown in FIG. 20), and includes an upper part located above the rising part. The finding side 150 of the part is in contact with the proximal finding surface 30, and the proximal finding surface 30 and the finding side 150 are integrally fixed to the frame (outer wall W) using screws 301. ing. The engaging piece 401 of the guide rail 4 is locked to the locking piece 310 of the outer side 31 of the guide rail base frame 3, and the extension of the guide rail 4 is secured to the end prospective piece 34 (connection piece) of the guide rail base frame 3. The protruding pieces 410 (connecting pieces) are brought into contact and overlapped, and then fixed with screws 340 to be integrated.

The side frame consisting of the guide rail base frame 3 and the guide rail 4 is well known to those skilled in the art, and the shapes and connection configurations of the guide rail base frame 3 and the guide rail 4 are not limited to the illustrated embodiments. The upper portions of the left and right side frames are in contact with the lower portion of the shutter case 6 (the lower surface plate 67 on the frame side). No draining plates (lower frames) are provided at the lower portions of the left and right side frames. The lower ends of the side frames are in contact with (including partial contact with) or close to (including partial contact with) the floor surface FL.

In the window shutter according to this embodiment, a bottom closing member 16 is provided at a lower portion of the side frame. As shown in FIG. 24, the bottom closing member 16 includes a bottom part 160, and the bottom part 160 has approximately the same cross-sectional shape and dimensions as the side frame, and is adapted to cover the lower end of the side frame. ing. Two rising pieces 161 and 162 are formed on the bottom part 160, and the rising piece 161 is brought into contact with the lower end portion of the expected surface (outside expected side 31) of the side frame from the outside to rivet (screws may be used). The rising piece 162 is brought into contact with the lower end portion of the facing piece (intermediate facing side 33) of the side frame from the outside and is fixed with a rivet (screws may be used). The bottom closing member 16 according to this embodiment is made of steel (stainless steel, etc.).

[F] Means for closing the gap in the lower part of the side frame of the window shutter In this embodiment, the lower wall surface W' is located on the indoor side of the outer wall W to which the guide rail base frame 3 and the shutter case 6 are attached. . The lower part of the side frame according to this embodiment is located below the window device 8, and this lower part is spaced from the lower wall surface W' toward the outdoors, and is connected to the lower part of the left and right side frames. A gap is formed between the lower wall surface W' and the lower wall surface W'. More specifically, from the upper end of the lower wall surface W' to the outer wall W, an intermediate lower surface W'' of the frame is formed, and at the lower part of the left and right side frames, the proximal side facing surface of the side frame (guide rail base A vertically rectangular gap in side view is formed by the proximal side facing surface 30) of the frame 3, the lower wall surface W', the floor surface FL, and the middle lower surface W'' of the frame, and the outdoor side of the gap is formed from the base end side facing surface 30). The indoor side of the gap is defined by the lower wall surface W', the lower side of the gap is defined by the floor FL, and the upper side of the gap is defined by the middle lower surface W'' of the frame (see FIG. 20). The formation of such a gap may cause problems such as light leakage and deterioration of design quality due to the gap being visible from the outside. Therefore, it is desirable to close this gap with a gap closing means. In this embodiment, three types of means are disclosed as the gap closing means: a first embodiment, a second embodiment, and a third embodiment.

[F-1] First Embodiment A first embodiment of the gap closing means will be described with reference to FIGS. 22 to 26. The gap closing means according to the first embodiment includes a first member 17 fixed to a lower part of the proximal end facing surface 30 of the guide rail base frame 3, and a height position thereof with respect to the first member 17 is adjustable. and a second member 18. Since the gap closing means according to the first embodiment has a variable height dimension, especially when the height dimension of the gap varies depending on the site, the height of the left and right gaps can be adjusted by the inclination of the floor surface FL in the opening width direction. It is possible to effectively deal with cases where the dimensions are different.

As shown in the right figure of FIG. 25, the first member 17 is a long member extending in the height direction, and includes a facing side 170, a first facing side 171 extending from one end of the facing side 170, and a first facing side 171 extending from one end of the facing side 170. An intermediate facing side 172 extends in the facing direction from the tip of the side 171 to face the facing side 170, and a second facing side extends in the facing direction from the tip of the intermediate facing side 172 in a direction away from the facing side 170. It has a side 173, an upper edge 174, and a lower edge 175. Two holes 1700 are formed in the facing side 170 at an interval in the height direction, and the bolts of the fixing means 176 (bolts and nuts) are inserted therethrough.

The facing width of the facing side 170 of the first member 17 is approximately the same as the facing width of the base end side facing surface 30 of the guide rail base frame 3, and the facing width of the intermediate facing side 172 is as follows. It is shorter than the width of the facing side 170. A prospective portion of the first member 17 (a first prospective portion of the gap closing means) is formed from the first prospective side 171, the intermediate prospective side 172, and the second prospective side 173. The sum of the estimated dimensions of the two estimated sides 173 is the estimated dimension of the first member 17.

As shown in the left diagram of FIG. 25, the second member 18 is a long member extending in the height direction, and extends in the projection direction as a whole. It consists of an intermediate facing side 181 extending in the facing direction from the end of the intermediate facing side 181, and a second facing side 182 extending in the facing direction from the end of the intermediate facing side 181 to the side opposite to the first facing side 180 (the second member 18 (the entire second prospective portion of the gap closing means), an upper edge 183, and a lower edge 184. Two holes 1800 are formed in the first prospective side 180 at an interval in the height direction, and a screw 185 is inserted therethrough. The expected size of the second member 18 is the sum of the expected dimensions of the first expected side 180 and the expected size of the second expected side 182.

In this embodiment, the height dimensions of the first member 17 and the second member 18 are approximately the same, and the projected portions of the first member 17 (the first projected side 171, the intermediate projected side 172, and the second projected side 173) ) and the second member 18 have substantially the same cross-sectional shape and dimensions, and the estimated dimensions of the first member 17 and the second member 18 are substantially the same. The height dimensions of the first member 17 and the second member 18 are lower than the height dimension of the assumed gap, and the estimated dimensions of the first member 17 and the second member 18 are the height dimensions of the assumed gap. The dimensions are smaller than the expected width.

The first prospective side 171 of the first member 17 and the first prospective side 180 of the second member 18, the intermediate found side 172 of the first member 17 and the intermediate found side 181 of the second member 18, The second prospective side 173 and the second prospective side 182 of the second member 18 have approximately the same width, and the second member 18 overlaps the outer surface of the prospective portion of the first member 17, thereby forming a gap closing means. , the second member 18 is slidable in the height direction with respect to the first member 17.

The right figure in FIG. 26 shows a first aspect in which the expected portion of the first member 17 and the second member 18 overlap over the entire height, and the upper end edge 174 of the first member 17 and the upper end edge of the second member 18 183 match, and the lower end edge 175 of the first member 17 and the lower end edge 184 of the second member 18 match.

The left figure in FIG. 26 shows a second mode in which the second member 18 has slid upward relative to the expected portion of the first member 17 from the mode shown in the right figure. The members 18 partially overlap in the height direction. The upper edge 183 of the second member 18 is located higher than the upper edge 174 of the first member 178, and the lower edge 175 of the first member 17 is located lower than the lower edge 184 of the second member 18.

In the right figure of FIG. 26, the gap closing means is in the first mode and has the first height dimension, and in the left figure of FIG. 26, the gap closing means is in the second mode and has the first height dimension. In the first aspect and the second aspect, the expected width of the gap closing means is the same. In FIG. 22, the gap closing means is in the first mode, and in FIG. 23, the gap closing means is in the second mode.

As shown in FIG. 24, the first member 17 is fixed by fixing means 176 (bolts and nuts) with the indexing side 170 in contact with the outer surface of the proximal indexing surface 30 of the guide rail base frame 3. Fixed. In the illustrated embodiment, the finding side 150 of the reinforcing member 15 is in contact with the inner surface of the proximal finding surface 30, and the fixing means 176 connects the finding side 150, the proximal finding surface 30, and the finding side 170. are fixed in one piece. The first expected side 171 of the first member 17 is approximately flush with the outer expected side 31 of the guide rail base frame 3 (located inside by the thickness of the first expected side 180 of the second member 18). It extends toward the lower wall surface W', and the tip of the second prospective side 173 and the lower wall surface W' are spaced apart. The second member 18 is superimposed on the projected portion of the first member 17 fixed to the proximal facing surface 30 of the guide rail base frame 3, and the first projected side 180 of the second member 18 is It is flush with the outer expected side 31 of the rail base frame 3, and the tip of the second expected side 182 of the second member 18 is aligned with the tip of the second expected side 173, and is spaced apart from the lower wall surface W'. There is. Note that the first prospective side 180 of the second member 18 may not be flush with the external prospective side 31 of the guide rail base frame 3, but may extend along the external prospective side 31.

FIG. 22 shows a state in which the second member 18 is overlapped over the entire height of the first member 17 fixed to the proximal end face 30 of the guide rail base frame 3 (the second member 18 in the right figure of FIG. 1), and a gap is formed between the upper edges 174, 183 of the first member 17 and the second member 18 and the upper end of the gap (the middle lower surface W'' of the frame).

FIG. 23 shows a state in which the second member 18 is slid upward relative to the prospective portion of the first member 17 from the state shown in FIG. 18 is shown in a state where the upper end edge 183 is close to or in contact with the upper end of the gap (the middle lower surface W'' of the frame). With the height position of the second member 18 determined, the first prospective side 180 of the second member 18 is fixed to the first prospective side 171 of the first member 17 with the screw 185. After adjusting the height dimension of the gap closing means according to the first embodiment, an airtight member 19 is further used to increase the height between the gap closing means (ends of the second prospective sides 173, 182) and the lower wall surface W'. It is blocked in all directions. Note that a sealing material may be provided between the upper end of the gap closing means and the intermediate lower surface W'' of the frame body, and between the lower end of the gap closing means and the floor surface FL to close the gap.

[F-2] Second Embodiment A second embodiment of the gap closing means will be described with reference to FIGS. 27 to 32. The gap closing means according to the second embodiment includes a first member 27 fixed to a lower portion of the proximal end facing surface 30 of the guide rail base frame 3, and a position in the forward direction relative to the first member 27 that is adjusted. A possible second member 28. Since the gap closing means according to the second embodiment has a variable estimated size, it can effectively cope with cases where the estimated size of the gap varies depending on the site.

As shown in the left diagram of FIG. 31, the first member 27 is a long member extending in the height direction, and has a U-shape in cross section from a facing side 270 and left and right facing sides 271, 272. There is. A first hole 2700, a second hole 2701, and a third hole 2702 are formed at intervals in the height direction on the upper side of the facing side 270 of the first member 27, and a third hole 2702 is formed on the lower side. , a second hole 2701, and a first hole 2700 are formed at intervals in the height direction. The projected sides 271 and 272 of the first member 27 are used as the first projected portion of the gap closing means.

As shown in the right figure of FIG. 31, the second member 28 is an elongated member extending in the height direction, and has an H-shape in cross section from an expected side 280 and left and right expected sides 281 and 282. . A threaded hole 2800 is formed in the facing side 280 of the second member 28 at intervals above and below. The projected sides 281 and 282 of the second member 28 are used as the second projected portion of the gap closing means.

The first member 27 and the second member 28 have the same height dimension, and the height dimension is approximately the same as the height dimension of the gap. The dimension between the outer surfaces of the prospective sides 281 and 282 of the second member 28 is approximately the same (slightly smaller) as the dimension between the inner surfaces of the prospective sides 271 and 272 of the first member 27, and The member 28 is fitted with the gap closing means according to the second embodiment in a state in which the outer surfaces of the projected sides 281 and 282 of the second member 28 are slidably overlapped with the inner surfaces of the projected sides 271 and 272 of the first member 27 in the projected direction. The second member 28 slides relative to the first member 27 in the direction of projection, so that the projected dimensions of the gap closing means can be changed.

In the gap closing means according to the second embodiment in which the first member 27 and the second member 28 are combined, the left diagram in FIG. In this state, the found side 280 of the second member 28 moves in the direction away from the found side 270 of the first member 27. As a result, the expected dimensions of the gap closing means become larger, resulting in the second mode shown in the right diagram of FIG. 32. In FIGS. 27 and 28, the gap closing means is in the first mode, and in FIGS. 29 and 30, the gap closing means is in the second mode.

The gap closing means according to the second embodiment includes three types of screws extending in the forward direction. The first screw 21 is a screw that fixes the first member 27 to the side frame (base end side facing surface 30 of the guide rail base frame 3), and the second screw 22 is a screw that fixes the second member 27 to the first member 27. The third screw 23 is a screw that fixes the second member 28 whose position has been adjusted to the first member 27 (proximal end facing surface 30).

A first hole formed on the upper side of the facing side 270 of the first member 27 is provided in the base end side facing surface 30 of the guide rail base frame 3 (and in the illustrated embodiment, the facing side 150 of the reinforcing member 15). 2700, a second hole 2701, a third hole 2702, a first hole, a second hole, and a third hole are formed to correspond to the third hole 2702, the second hole 2701, and the first hole 2700 formed on the lower side, respectively. has been done.

The first member 27 is fixed with the first screw 21 with the indexing side 270 in contact with the proximal indexing surface 30 of the guide rail base frame 3. It is screwed into the first hole 2700 of the side 270. The first hole 2700 is a screw hole, and the first hole of the proximal side facing surface 30 (and the facing side 150 of the reinforcing member 15) corresponding to the first hole 2700 is an insertion hole. The first screw 21 makes contact with the proximal side finding surface 30 of the guide rail base frame 3, the finding side 150 that abuts the inner surface of the proximal finding surface 30, and the outer surface of the proximal finding surface 30. The found edges 270 are integrated (see FIG. 28). One projected side 271 of the first member 27 is flush with the outer projected side 31 of the guide rail base frame 3. Although FIG. 28 shows the guide rail 4 attached to the guide rail base frame 3, it should be noted that in the actual installation procedure, the guide rail 4 is attached after the gap closing means is attached. sea bream.

The second hole 2701 formed in the found side 270 of the first member 27 is a screw hole, and the base end side found side 30 (and the found side 150 of the reinforcing member 15) corresponding to the second hole 2701 is a screw hole. The second hole is an insertion hole. The second screw 22 is inserted through the second hole of the proximal side viewing surface 30 and screwed into the second hole 2701, and the tip of the shaft portion of the second screw 22 is inserted into the second hole 2701 of the proximal side viewing surface 30. It is in contact with the edge. When the gap closing means tightens the second screw 22 in the state of the first aspect shown in FIG. 32, the shaft portion of the second screw 22 pushes the expected side of the second member 28, With respect to the first member 27 fixed to the proximal end finding surface 30, the second member 28 is slid in the direction of projection to increase the projected dimension (upper diagram in FIG. 30).

The third hole 2702 formed in the facing side 270 of the first member 27 is an insertion hole, and the third hole 2702 formed in the facing side 270 of the first member 27 is an insertion hole. The third hole is an insertion hole. The third hole 2702 of the first member 27 and the screw hole 2800 of the second member 28 match, and the third screw 23 is inserted into the third hole 2702 of the first member 27 and the screw hole 2800 of the second member 28. The second member 28 is connected to the first member 27 by inserting the third hole 2702 formed in the locating side 270 and screwing the distal end portion of the shaft portion into the screw hole 2800 of the second member 28. is fixed (in the illustrated embodiment, the head of the third screw 23 is in contact with the locating side 150), and the expected dimensions of the gap closing means are determined (lower diagram in FIG. 30). Note that the third screw 23 is an optional element, and the position of the gap closing means can be maintained even without the third screw 23.

An airtight member 29 is fitted over the entire height into a U-shaped space in cross section surrounded by the half of the expected sides 281 and 282 of the second member 28 on the side far from the first member 27 and the found side 280. It is. In a state where external pressure is desired to be applied, the airtight member 29 partially protrudes beyond the end portions of the expected sides 281 and 282 of the second member 28 (FIGS. 28 and 32). By pushing in the second member 28 with the second screw 22, the airtight member 29 is brought into close contact with the lower wall surface W' (FIG. 30). Note that a sealing material may be provided between the upper end of the gap closing means and the intermediate lower surface W'' of the frame body, and between the lower end of the gap closing means and the floor surface FL to close the gap. In the illustrated embodiment, the estimated dimensions of the first member 27 and the estimated sides 271 and 272 are the same, and the estimated dimensions of the second member 28 and the estimated sides 281 and 282 are the same, but either the first member 27 or the second member 28 One of the estimated dimensions may be large and the other estimated dimension may be small. In the illustrated embodiment, the facing side 80 of the second member 8 is located at the center of the expected width of the expected sides 281 and 282, but it may be offset to either the outdoor side or the indoor side.

[F-3] Third Embodiment A third embodiment of the gap closing means will be described with reference to FIGS. 33 to 39. The gap closing means according to the third embodiment has variable height dimensions and estimated dimensions, and when the height dimension of the gap varies depending on the site, the height of the left and right gaps is adjusted by the inclination of the floor surface FL in the opening width direction. When the dimensions are different, it is possible to effectively deal with all cases where the expected size of the gap differs depending on the site.

The gap closing means according to the third embodiment includes a first unit 37 and a second unit 38 whose position in the forward direction relative to the first unit 37 is adjustable. The first unit 37 includes a first element 43 and a second element 44 whose position in the height direction relative to the first element 43 is adjustable. The second unit 38 includes a third element 45 and a fourth element 46 whose position in the height direction relative to the third element 45 is adjustable. Following the upward movement of the second element 44 of the first unit 37, the fourth element 46 of the second unit 38 moves upward. In this embodiment, the first element 43, the second element 44, the third element 45, and the fourth element 46 all have the same height, which is lower than the height of the gap.

As shown in FIG. 38(B), the first element 43 is a long member extending in the height direction, and has a U-shape in cross section from a facing side 430 and left and right facing sides 431, 432. It also has an upper edge 433 and a lower edge 434. A first hole 4300, a second hole 4301, and a third hole 4302 are formed at intervals in the height direction on the facing side 430 of the first element 43, and a third hole 4302 is formed on the bottom side. , the second hole 2301, and the first hole 4300 are formed at intervals in the height direction.

As shown in FIG. 38(A), the second element 44 is a long member extending in the height direction, and has a U-shape in cross section from a facing side 440 and left and right facing sides 441, 442. It also has an upper edge 443 and a lower edge 444. Vertical elongated holes 4400 are formed at the top and bottom of the facing side 440 of the second element 44 .

The first element 43 and the second element 44 have the same height dimension. The dimension between the outer surfaces of the prospective sides 431 and 432 of the first element 43 is approximately the same (slightly smaller) as the dimension between the external surfaces of the prospective sides 441 and 442 of the second element 44, and The first unit 37 having a U-shaped cross section is formed by overlapping the U-shaped outer surface of the first element 43 on the U-shaped inner surface. The first hole 4300, second hole 4301, and third hole 4302 formed in the found side 430 of the first element 43 and the vertically elongated hole 4400 formed in the found side 440 of the second element 44 coincide. The second element 44 is slidable in the height direction with respect to the first element 43 with the outer surfaces of the expected sides 441 and 442 of the second element 44 overlapping the inner surfaces of the expected sides 431 and 432 of the first element 43. It becomes. FIG. 37(A) shows a state in which the second element 44 has slid upward relative to the first element 43.

As shown in FIG. 38(D), the third element 45 is an elongated member extending in the height direction, and has an H-shape in cross section from a facing side 450 and left and right facing sides 451 and 452. It also has an upper edge 453 and a lower edge 454. Two screw holes 4500 are formed in the facing side 450 of the third element 45 at an interval in the height direction.

As shown in FIG. 38(C), the fourth element 46 is a long member extending in the height direction, and has a U-shape in cross section from a facing side 460 and left and right facing sides 461, 462. Horizontal bent pieces 4610 and 4620 are formed at the upper ends of the expected sides 461 and 462. The upper end and lower end of the fourth element 46 are an upper edge 463 and a lower edge 464, respectively.

The third element 45 and the fourth element 46 have the same height dimension. The dimension between the outer surfaces of the expected sides 451 and 452 of the third element 45 is approximately the same (slightly smaller) as the dimension between the outer surfaces of the expected sides 461 and 462 of the fourth element 46, and when viewed in cross section of the fourth element 46, The second unit 38 is formed by overlapping the U-shaped inner surface with the H-shaped outer surface of the third element 45 in cross section. The fourth element 46 is slidable in the height direction with respect to the third element 45 with the inner surfaces of the expected sides 461 and 462 of the fourth element 46 overlapping the outer surfaces of the expected sides 451 and 452 of the third element 45. It becomes. FIG. 37(B) shows a state in which the fourth element 46 has slid upward relative to the third element 45.

By combining the first unit 37 and the second unit 38, the first element 43, second element 44, third element 45, and fourth element 46 have upper edges 433, 443, 453, 463, lower edges 434, 444, 454. , 464 are aligned, the bent pieces 4610 and 4620 of the fourth element 46 of the second unit 38 are placed on the upper edge 433 of the first element 43 of the first unit 37 and the upper edge 443 of the second element 44. (Figure 39 left diagram). In this state, when the second element 44 of the first unit 37 is lifted, the bent pieces 4610 and 4620 of the fourth element 46 of the second unit 38 are pushed up, and the second element 44 and the fourth element 46 are integrated. It is designed to move upward (Fig. 37(C)).

The gap closing means according to the third embodiment includes three types of screws extending in the forward direction. The first screw 21 is a screw that fixes the first unit 37 (first element 43) to the side frame (base end side facing surface 30 of the guide rail base frame 3), and the second screw 22 is a screw that fixes the first unit 37 (first element 43) to the side frame (base end side facing surface 30 of the guide rail base frame 3). The third screw 23 is a screw for adjusting the position of the second unit 38 (third element 45) in the viewing direction with respect to the first unit 37 (proximal viewing surface 30). This is a screw that fixes the unit 38 (third element 45).

The proximal side facing surface 30 of the guide rail base frame 3 (and the facing side 150 of the reinforcing member 15 in the illustrated embodiment) has an upper side of the facing side 430 of the first element 43 of the first unit 37. A first hole, a second hole, A third hole is formed.

The first unit 37 is connected to the first unit 37 by the first screw 21 with the finding side 440 of the second element 44 in contact with the base end facing surface 30 of the guide rail base frame 3. 430 is fixed to the proximal end facing surface 30 of the guide rail base frame 3, thereby being fixed to the base end facing surface 30 of the guide rail base frame 3. One prospective surface of the first unit 37 (one prospective side 441 of the second element 44) is flush with the outer prospective side 31 of the guide rail base frame 3. The first hole 4300 is a screw hole, and the first hole of the proximal side facing surface 30 (and the facing side 150 of the reinforcing member 15) corresponding to the first hole 4300 is an insertion hole. 4300 coincides with the vertical hole 4400 of the facing side 440 of the second element 44 of the first unit 37. The first screw 21 is inserted through the first hole of the proximal end side facing surface 30 (and the facing side 150 of the reinforcing member 15) and the vertically elongated hole 4400 formed in the facing side 440 of the second element 44. It is screwed into the first hole 4300 of the side 430.

By tightening the first screw 21, the base end side facing surface 30 of the guide rail base frame 3, the facing side 150 in contact with the inner surface of the base end side facing surface 30, and the outer surface of the base end side facing surface 30. The prospective sides (located side 440+located side 430) of the first unit 37 that abutted are integrated (see FIG. 34). Although FIG. 34 shows the guide rail 4 attached to the guide rail base frame 3, it should be noted that in the actual installation procedure, the guide rail 4 is attached after the gap closing means is attached. sea bream.

Note that the first screw 21 is tightened after the height position of the second element 44 relative to the first element 43 is determined. With the first element 43 temporarily held by the first screw 21, the second element 44 is slid upward relative to the first element 43, and the second element 44 and the fourth element 46 are moved upward together. By determining the height dimension of the gap closing means and tightening the first screw 21, the facing side 440 of the second element 44 is aligned with the proximal facing face 30 of the guide rail base frame 3 and the first element 43. The height position of the second element 44 is fixed, and at the same time, the height position of the fourth element 46 is fixed.

The second hole 4301 formed in the facing side 430 of the first element 43 of the first unit 37 is a screw hole, and the base end side facing surface 30 (and the facing side of the reinforcing member 15 The second hole of the side 150) is an insertion hole, and the second hole 4301 coincides with the longitudinal hole 4400 of the side 440 of the second element 44 of the first unit 37. The second screw 22 is inserted through the second hole of the base end side finding surface 30, and the shaft portion of the second screw 22 is screwed into the vertical hole 4400 and the second hole 4301, and the tip thereof is inserted into the second hole. It is in contact with the facing side 450 of the third element 45 of the unit 38 .

In the gap closing means according to the third embodiment, when the second screw 22 is tightened in a state where the estimated size is small (FIG. 33, FIG. 34, left view of FIG. 39), the shaft portion of the second screw 22 is connected to the second unit. 38, and the second unit 38 (third element 45) is pressed against the first unit 37 fixed to the base end side finding surface 30. The projected dimension is increased by sliding in the direction, and the detected side 460 of the fourth element 46 of the second unit 38 is brought into contact with the lower wall surface W' (upper view of FIG. 36). Note that an airtight member (sealing material) may be provided on the facing side 460 of the fourth element 36.

The third hole 4302 formed in the facing side 430 of the first element 43 of the first unit 37 is an insertion hole. The third hole of the side 150) is an insertion hole, and the third hole 4302 coincides with the longitudinal hole 4400 of the side 440 of the second element 44 of the first unit 37. The third hole 4302 formed in the facing side 430 of the first element 43 of the first unit 37 and the screw hole 4500 formed in the facing side 45 of the third element 45 of the second unit 38 match, and the third screw 23, the third hole of the proximal side facing surface 30 (and the facing side 150 of the reinforcing member 15), the vertically elongated hole 4400 formed in the facing side 440 of the second element 44 of the first unit 37, the first element The first unit 37 The position of the second unit 38 is fixed relative to the gap, and the gap is closed by the gap closing means (lower diagram of FIG. 36). In addition, between the body-side facing surface (finding side 460) of the gap closing means and the lower wall surface W', between the upper end of the gap closing means and the middle lower surface W'' of the skeleton, and between the lower end of the gap closing means and the floor surface. A sealing material may be provided between it and the FL to close it. The prospective sides 431 and 432 of the first element 43 and the prospective sides 441 and 442 of the second element 44 are the first prospective parts of the gap closing means, and the prospective sides 451 and 452 of the third element 45 and the prospective sides 451 and 452 of the fourth element 46 are The sides 461 and 462 are the second prospective portion of the gap closing means. In the illustrated embodiment, the expected dimensions of the expected portion of the first unit 37 (the expected sides 431, 432 of the first element 43) and the expected dimensions of the expected portion of the second unit 38 (the expected sides 451, 452 of the third element 45) are shown. are the same, but the expected part of either the expected part of the first unit 37 (the expected sides 431, 432 of the first element 43) or the expected part of the second unit 38 (the expected sides 451, 452 of the third element 45) One dimension may be large and the other dimension may be small. In the illustrated embodiment, the finding side 450 of the third element 45 is located at the center of the expected width of the expected sides 451 and 452, but it may be offset to either the outdoor side or the indoor side.

1 Bracket 2 Winding shaft 3 Guide rail base frame (side frame)
30 Base end side finding surface 4 Guide rail (side frame)
5 Shutter curtain 5A Upper part 5B Lower part 5C Outermost part 50 Slat 500 Main body part 501 Upper interlock part 502 Lower interlock part 6 Shutter case (shutter storage part)
60 Top plate 63 First case angle 630 Back part 631 Upper piece 633 Lower piece 7 Seat plate 70 Vertical part 71 Flat part 72 Flat part 724 Lower part 73 Reinforcement material 74 Flat part 743 Lower part 745 Buffer member 746 Outdoor side thermal expansion Fireproof member 747 Indoor thermal expansion fireproof member 75 Reinforcement member 8 Window device 81 Lower frame 9 Handle 90 Upper horizontal piece 91 Lower horizontal piece 92 Vertical surface part 93 Handle piece 11 Locking device 112 Operation part (lever lock)
113 Lever (lever lock)
114 String-like member 115 Gripping portion 12 End hooking fitting 13 Intermediate hooking fitting 130 Surface portion 131 Hooked piece 132 Opening 133 Projecting piece 14 Supporting member 140 Surface portion 141 Inclined piece 142 Lower piece 143 Bent piece 20 Waterproof layer 17 First member (Gap closing means)
18 Second member (gap closing means)
19 Airtight member (sealing material)
27 First member (gap closing means)
28 Second member (gap closing means)
29 Airtight member (sealing material)
37 First unit (gap closing means)
38 Second unit (gap closing means)
43 First element 44 Second element 45 Third element 46 Fourth element FL Floor surface W External wall (framework)
W´ Lower wall surface W´´ Middle lower surface of the frame

Claims (6)

In a window shutter in which a shutter curtain opens and closes a space formed by a shutter storage section provided in a corbelled structure, left and right side frames, and a lower surface of the structure,
The seat plate of the shutter curtain includes a flat portion having a predetermined expected width extending in the indoor/outdoor direction and a predetermined expected width extending in the opening width direction,
A reinforcing material extending in the width direction of the flat part is provided inside the flat part,
window shutters. The flat portion includes a hollow portion, and the reinforcing material is provided within the hollow portion.
The window shutter according to claim 1. The seat plate is made of aluminum, and the reinforcing material is made of a metal with a higher melting point than aluminum.
The window shutter according to any one of claims 1 and 2. The flat portion includes a lower side located below the reinforcing material,
A thermal expansion fireproof member is provided on the lower surface of the lower side.
The window shutter according to claim 1. The flat part includes a hollow part, and the lower side is a lower surface part of the hollow part.
The window shutter according to claim 4. A cushioning material extending in the width direction is provided on the lower surface of the hollow portion, and is located in the middle of the width direction.
The thermal expansion fireproof member includes an outdoor thermal expansion fireproof member located on the outdoor side of the cushioning material, and an indoor thermal expansion fireproof member located on the indoor side of the cushioning material.
The window shutter according to claim 5.

Images