JP6811151B2 - Insulated sash - Google Patents

Description

The present invention relates to a heat insulating sash arranged in a building opening.

Conventionally, as a heat insulating sash arranged in a building opening, a composite frame in which a resin frame is arranged on the indoor side of a metal frame, whereas a composite frame in which a resin frame is arranged on the indoor side of a metal frame is used. Insulated sashes on which shoji are placed are known. (Patent Document 1)

Japanese Patent No. 4981163

In the fitting of Patent Document 1, by arranging a resin frame made of a resin material and a resin frame material, it is possible to suppress the transmission of cold heat from the indoor side surface of the fitting and improve the heat insulating performance.
However, with respect to the metal lower frame, although the resin member or the like is arranged on the upper surface of the lower frame, it does not completely cover the rail portion, and it is difficult to prevent the transfer of cold heat from the rail portion. In view of the above circumstances, the present invention secures the strength that can sufficiently support the load of the shoji when the shoji is closed in the composite sash made of the outdoor member made of a metal material and the indoor member made of a resin material. The purpose is to suppress the transmission of cold heat from the rail part of the lower frame and further improve the heat insulation performance.

One embodiment of the present invention includes a frame body arranged in a building opening and a shoji sash arranged so as to be openable and closable in the frame body, and the frame body is attached to a lower frame main body and a lower frame main body. It has an inner lower rail member that guides the shoji, and the inner lower rail member is a resin rail member that is arranged in the outer shoji side region when the shoji is closed, and a metal rail that is arranged in the inner shoji region when the shoji is closed. It is a sash having a member.

According to one embodiment of the present invention, it is possible to suppress the transmission of cold heat from the rail portion of the lower frame in the heat insulating sliding sash or the like, and further improve the heat insulating performance. It is possible to improve the wind pressure resistance performance.

It is an appearance figure of the heat insulation sash of embodiment of this invention. It is a x1-x1 longitudinal sectional view in FIG. 1 of the heat insulating sash of the embodiment of the present invention. It is a x2-x2 vertical sectional view in FIG. 1 of the heat insulating sash of the embodiment of this invention. It is sectional drawing of the heat insulating sash of embodiment of this invention. 2 is an enlarged vertical sectional view of the lower frame of the heat insulating sash according to the second embodiment of the present invention, (a) is a x1-x1 vertical sectional view in FIG. 1, and (b) is a x2-x2 vertical sectional view in FIG. is there. It is an enlarged vertical sectional view of the lower frame of the heat insulating sash of the 3rd Embodiment of this invention, and is the x1-x1 vertical sectional view in FIG.

The heat insulating sash according to the embodiment of the present invention will be described with reference to the drawings.
-Overall insulation sash configuration-
The heat insulating sash according to the embodiment of the present invention is provided in a building opening such as a building, and is arranged freely with respect to the frame 1 and the frame 1 as shown in FIG. It has an internal shoji 2 and an external shoji 3.
The frame body 1 is composed of upper and lower horizontal frames (upper frame 11 and lower frame 12) and left and right vertical frames 13 and 14 in four circumferences, and the inner shoji 2 and the outer shoji 3 are upper and lower horizontal frames (upper), respectively. The stiles 21, 31 and lower stiles 22, 32) and the left and right vertical stiles (23, 24, 33, 34) are assembled in four circumferences, and a panel body (25, 35) such as glass is fitted in the inner circumference. Is formed of.

-Structure of frame-
(Structure of upper frame)
As shown in FIGS. 2 and 3, the upper frame 11 constituting the frame 1 of the sash has a metal upper frame 111 fixed to the opening of the building and made of a metal material such as an aluminum alloy, and the metal upper frame 111 found on the indoor side. It has a resin upper frame 112 which is arranged on a surface and is made of a resin material. Further, the upper frame 11 has a resin cover member 113 (FIG. 2) arranged on the inner peripheral surface of the metal upper frame 111 and made of a resin material, and a metal cover member 114 (FIG. 3) made of a metal material such as an aluminum alloy. ing.

The metal upper frame 111 of the upper frame 11 includes an upper frame main body 111a attached to the inner circumference of the building opening, an indoor side wall 111b hanging from the indoor end of the upper frame main body 111a, and an upper frame main body 111a. The outdoor wall portion 111c hanging from the outdoor end of the above frame, the central wall portion 111d hanging from the vicinity of the central lower surface of the upper frame main body 111a, and the upper frame main body 111a between the outdoor wall 111c and the central wall 111d. It has an outdoor upper rail 111e hung from the lower surface of the above.

An airtight material s21 that abuts on the indoor side surface of the upper stile 21 of the inner sash 2 is attached to the indoor side surface of the indoor side wall portion 111b of the metal upper frame 111 by a mounting groove or the like. Is provided with an engaging portion for attaching the resin upper frame 112. Further, an airtight material s31 that abuts on the indoor side surface of the upper stile 31 of the outer sash 3 is attached to the lower end chamber outer surface of the central wall portion 111d of the metal upper frame 111 by a mounting groove or the like, and the interior of the central wall portion 111d. An engaging portion is provided on the side surface for attaching the resin cover member 113 or the metal cover member 114.

The resin upper frame 112 of the upper frame 11 is fixed to the metal upper frame 111 by being engaged with the engaging portion of the indoor side wall portion 111b of the metal upper frame 111. The resin upper frame 112 is formed from the resin upper frame main body 112a arranged so as to cover the indoor side surface over the entire length of the metal upper frame 111 in the finding (left and right) direction, and the inner peripheral indoor side end of the resin upper frame main body 112a. It has a collar portion 112b extending to the indoor side.
Then, the lower wall of the resin upper frame main body portion 112a of the resin upper frame 112 fixed to the metal upper frame 111 extends to the outdoor side, covers the lower end surface of the indoor side wall portion 111b, and comes into contact with the airtight material s21. Or they are in close proximity. Therefore, the indoor side wall portion 111b of the metal upper frame 111 is not exposed to the indoor side.

As shown in FIG. 2, the resin cover member 113 of the upper frame 11 has an inner peripheral wall portion 113a arranged along the inner peripheral (lower) surface of the upper frame main body portion 111a and a lower portion of the inner peripheral wall portion 113a from the indoor side. The indoor side finding wall portion 113b provided toward the center, and the outdoor side having a hollow cross section provided along the indoor side of the central wall portion 111d and provided downward from the outdoor side of the inner peripheral wall portion 113a. It has a finding wall portion 113c and a lower wall portion 113d having a hollow cross section extending in the indoor direction from the lower end of the finding wall portion 113c on the outdoor side.

The resin cover member 113 is arranged on the inner circumference of the metal upper frame 111 on the side of the outer sash 3 in the finding direction when the inner and outer sashes 2 and 3 are closed, and the finding wall portion 113b on the indoor side is the metal upper frame 111. The outdoor side wall portion 111b is locked to the mounting groove of the airtight material formed on the outdoor side, and the outdoor side finding wall portion 113c and the lower wall portion 113d are engaged with the engaging portion formed on the central wall portion 111d. By doing so, it is attached to the metal upper frame 111. The lower wall portion 113d of the resin cover member 113 is arranged so as to abut or approach the airtight material s31 on the lower end surface of the central wall portion 111d, and the metal upper frame 111 is indoors on the indoor side of the closed outer sash 3. Not exposed to.

As shown in FIG. 3, the metal cover member 114 of the upper frame 11 has an inner peripheral wall portion 114a arranged along the inner peripheral (lower) surface of the upper frame main body portion 111a and a lower portion of the inner peripheral wall portion 114a from the indoor side. A finding wall portion 114b on the indoor side provided toward the center, and a finding on the outdoor side having a hollow cross section arranged along the indoor side of the central wall portion 111d provided downward from the outdoor side of the inner peripheral wall portion 114a. It has a wall portion 114c and a lower wall portion 114d having a hollow cross section extending in the indoor direction from the lower end of the finding wall portion 114c on the outdoor side.

The metal cover member 114 is arranged on the inner circumference of the metal upper frame 111 on the inner and outer sash 2 side in the finding direction when the inner and outer sashes 2 and 3 are closed, and the finding wall portion 114b on the indoor side is the metal upper frame 111. The outdoor side wall portion 111b is locked to the mounting groove of the airtight material formed on the outdoor side, and the outdoor side finding wall portion 114c and the lower wall portion 114d are engaged with the engaging portion formed on the central wall portion 111d. By doing so, it is attached to the metal upper frame 111.

(Structure of lower frame)
As shown in FIGS. 2 and 3, the lower frame 12 constituting the frame 1 of the sash has a metal lower frame 121 fixed to the opening of the building and made of a metal material such as an aluminum alloy, and the metal lower frame 121 found on the indoor side. It has a resin lower frame 122 which is arranged on a surface and is made of a resin material. Further, the lower frame 12 includes a resin rail member 123 fixed to the inner peripheral surface (upper surface) of the metal lower frame 121 on the outer sash 3 side in the closed state of the inner and outer sashes 2, and the inner and outer sashes 2. , 3 has a metal rail member 124 fixed to the inner peripheral surface (upper surface) of the metal lower frame 121 on the side of the shoji 2 in the closed state.

The metal lower frame 121 of the lower frame 12 includes a lower frame main body portion 121a attached to the inner circumference of the building opening, a rising portion 121b having a hollow cross section provided on the indoor side of the lower frame main body portion 121a, and a rising portion 121b. An indoor side wall portion 121c having an indoor side finding surface extending upward, an airtight material holding piece portion 121d extending from an upper position of the outdoor side surface of the rising portion 121b toward the outdoor side, and an upper surface of the rising portion 121b. The reinforcing core portion 121e provided in the lower frame main body 121a, the outdoor lower rail portion 121f provided on the outdoor upper surface of the lower frame main body 121a, and the outdoor wall portion 121g formed by bending the outdoor end of the lower frame main body 121a upward. Have.

An airtight material s22 that abuts on the indoor side surface of the lower stile 22 of the inner shoji 2 is attached to the outer side surface of the upper end of the indoor side wall portion 121c of the metal lower frame 121 by a mounting groove or the like, and the chamber of the airtight material holding piece portion 121d. An airtight material s32 that comes into contact with the indoor side surface of the lower frame 32 of the outer sash 3 is attached to the outer end portion by a mounting groove or the like.

Engagement portions for attaching the resin lower frame 122 are formed on the indoor side surface of the rising portion 121b and the upper end portion of the indoor side wall portion 121c. Further, engaging pieces 121h and 121h for holding the resin rail member 123 or the metal rail member 124 are provided on both sides of the reinforcing core portion 121e on the upper surface of the rising portion 121b in the prospective direction, and the reinforcing core portion 121e Protruding portions 121i and 121i are provided on both sides in the viewing direction.
The outdoor wall portion 121g of the metal lower frame 121 may form a rail on which a screen door (not shown) travels together with the outdoor wall portion 111c of the metal upper frame 11.

The resin lower frame 122 of the lower frame 12 is fixed to the metal lower frame 121 by being engaged with an engaging portion formed on the indoor side surface of the rising portion 121b and the upper end portion of the indoor side wall portion 121c. The resin lower frame 122 includes a resin lower frame main body 122a arranged so as to cover the indoor side surface over the entire length of the metal lower frame 121 in the finding (left and right) direction, and the inner peripheral indoor side of the resin lower frame main body 122a. It has a collar portion 122b extended to the.
The upper wall of the resin lower frame main body 122a of the resin lower frame 122 fixed to the metal lower frame 121 extends to the outdoor side, covers the upper end surface of the indoor side wall portion 121c, and comes into contact with the airtight material s22. Close to each other.

As shown in FIG. 2, the resin rail member 123 of the lower frame 12 has a resin rail portion 123a having a substantially inverted U-shaped cross section and projecting upward, and an indoor cover portion 123b continuous with the indoor side of the resin rail portion 123a. The resin rail portion 123a has an outdoor cover portion 123c that is continuous with the outdoor side, and is arranged in a range from the center position of the upper surface of the lower frame 12 in the finding direction to the left vertical frame 13.
The resin rail portion 123a is arranged so as to cover the reinforcing core portion 121e on the upper surface of the rising portion 121b of the metal lower frame 121, and the lower end of the resin rail portion 123a arranged on the rising portion 121b is the upper surface of the rising portion 121b. It is held by the engaging pieces 121h and 121h provided in the above. The tips of the projecting portions 121i and 121i of the reinforcing core portion 121e are in contact with the inner circumference of the resin rail portion 123a.
The indoor cover portion 123b extends in the indoor direction so as to cover the upper surface of the rising portion 121b from the indoor side surface of the resin rail portion 123a, and the indoor end end abuts on the airtight material s22 attached to the indoor side wall portion 121c. ing. Further, the outdoor cover portion 123c extends in the outdoor direction from the outdoor surface of the resin rail portion 123a so as to cover the rising portion 121b and the upper surface of the airtight material holding piece portion 121d, and the outdoor outer tip is the airtight material holding piece portion. It is in contact with the airtight material s32 attached to 121d.
Therefore, when the inner and outer sashes 2 and 3 are closed, the exposure of the lower frame 12 on the outer sash 3 side to the indoor side is kept to a minimum.

As shown in FIG. 3, the metal rail member 124 of the lower frame 12 has a metal rail portion 124a having a substantially inverted U-shaped cross section and protruding upward, and an outdoor leg extending diagonally downward from the outdoor surface of the metal rail portion 124a. It has a portion 124b, and is arranged in a range from the center position of the lower frame 12 in the finding direction to the right vertical frame 14.
The metal rail portion 124a is arranged so as to cover the reinforcing core portion 121e on the upper surface of the rising portion 121b of the metal lower frame 121, and the lower end of the metal rail member 124 arranged on the rising portion 121b is the upper surface of the rising portion 121b. It is held by the engaging pieces 121h and 121h provided in the above, and the tip of the outdoor leg portion 124b is in contact with the outdoor surface of the rising portion 121b. The tips of the protruding portions 121i and 121i of the reinforcing core portion 121e are in contact with the inner circumference of the metal rail member 124.
The resin rail portion 123a of the resin rail member 123 and the metal rail portion 124a of the metal rail member 124 are continuous at substantially the center position in the finding direction, and the inner and lower rail members that guide the inner sash 2 are inner and outer sashes. When a few are closed, the region on the outer sash 3 side is formed by the resin rail member 123 which is a resin rail, and the region on the inner sash 2 side is formed by the metal rail member 124 which is a metal rail.

(Structure of left vertical frame)
As shown in FIG. 4, the left vertical frame 13 constituting the frame 1 of the sash is a metal left vertical frame 131 fixed to the opening of the building and made of a metal material such as an aluminum alloy, and the indoor side of the metal left vertical frame 131. It has a main resin left vertical frame 132 arranged on the inner peripheral surface and made of a resin material, and a secondary resin left vertical frame 133 arranged on the inner peripheral surface of the main resin left vertical frame 132.

The metal left vertical frame 131 of the left vertical frame 13 extends in the inner peripheral direction from the inner peripheral surface of the left vertical frame main body 131a attached to the inner circumference of the building opening and the indoor end inner peripheral surface of the left vertical frame main body 131a. The indoor side wall 131b, the airtight material mounting portion 131c extending from the center to the inner circumference in the prospective direction of the left vertical frame main body 131a, and the left vertical on the outdoor side of the airtight material mounting 131c. The attracting piece 131d extending in the inner peripheral direction from the inner peripheral surface of the frame main body 131a and the outdoor wall 131e extending in the inner peripheral direction from the inner peripheral surface of the outdoor end of the left vertical frame main body 131a. have.

On the outdoor surface of the airtight material mounting portion 131c of the metal left vertical frame 131, an airtight material s33 that abuts on the indoor side surface of the door end frame 33 of the outer shoji 3 is attached by a mounting groove or the like, and the airtight material mounting portion 131c An engaging portion that engages the outdoor end of the main resin left vertical frame 132 is formed on the indoor side surface.

The main resin left vertical frame 132 of the left vertical frame 13 has a hollow portion and covers the inner peripheral surface of the metal left vertical frame 131 on the indoor side of the airtight material mounting portion 131c, and the metal left vertical frame main body portion 132a. An indoor side portion 132b formed on the indoor side of the resin left vertical frame main body 132a so as to be located on the indoor side of the vertical frame 131, and an auxiliary resin vertical frame mounting portion 132c formed on the outdoor side of the hollow portion. It has a flange portion 132d extending in the indoor direction from the indoor side inner peripheral end of the indoor side portion 132b.

In the main resin left vertical frame 132, a fitting portion 132e into which the indoor side wall portion 131b of the metal left vertical frame 131 is fitted is formed on the outer peripheral side of the boundary portion between the resin left vertical frame main body portion 132a and the indoor side portion 132b. By engaging the indoor side wall portion 131b of the metal left vertical frame 131 with the engaging portion formed on the indoor side surface of the airtight material mounting portion 131c, the metal left end portion is engaged with the indoor side wall portion 131b. The vertical frame 131 is arranged over the entire length in the finding (upper and lower) direction.
The main resin left vertical frame 132 covers the inner peripheral surface of the metal left vertical frame 131 when the inner and outer shoji 2 and 3 are closed, so that the metal left vertical frame 131 is not exposed to the indoor side. ..

The sub-resin left vertical frame 133 of the left vertical frame 13 has a door stop portion 133a made of a soft resin material or the like, and a mounting portion 133b that engages with the sub-resin vertical frame mounting portion 132c of the main resin left vertical frame 132. ing. The secondary resin left vertical frame 133 has a mounting portion 133b attached to the secondary resin vertical frame mounting portion 132c of the main resin left vertical frame 132 so that the door stop portion 133a is continuous with the inner peripheral surface of the main resin left vertical frame 132. It is attached to.

(Structure of right vertical frame)
As shown in FIG. 4, the right vertical frame 14 constituting the frame 1 of the sash is a metal right vertical frame 141 fixed to a building opening and made of a metal material such as an aluminum alloy, and an indoor side of the metal right vertical frame 141. It has a resin right vertical frame 142 arranged at an end and made of a resin material.

The metal right vertical frame 141 of the right vertical frame 14 extends in the inner peripheral direction from the indoor side inner peripheral surface of the right vertical frame main body 141a attached to the inner circumference of the building opening and the right vertical frame main body 141a. The indoor side wall portion 141b, the pulling piece portion 141c extending in the inner peripheral direction from the inner peripheral surface of the right vertical frame main body portion 141a on the outdoor side of the indoor side wall portion 141b, and the prospective direction of the right vertical frame main body portion 141a. It has a central wall portion 141d extending in the inner peripheral direction from the inner peripheral surface at a substantially central position, and an outdoor wall portion 141e extending in the inner peripheral direction from the outdoor end of the right vertical frame main body 141a. ..

On the outdoor side surface of the indoor side wall portion 141b of the metal right vertical frame 141, an airtight material s24 that abuts on the indoor side surface of the door end frame 24 of the internal shoji 2 is attached by a mounting groove or the like, and the resin right is attached to the indoor side surface. An engaging portion that engages the vertical frame 142 is formed.

The resin right vertical frame 142 of the right vertical frame 14 engages with the engaging portion of the indoor side wall portion 141b of the metal right vertical frame 141 and covers the indoor side surface over the entire length in the finding (vertical) direction of the indoor side wall portion 141b. It is arranged like this.
The resin right vertical frame 142 is arranged so as to abut or approach the airtight material s24 on the inner peripheral end surface of the indoor side wall portion 141b, and the indoor side wall portion 141b of the metal right vertical frame 14 is exposed to the indoor side. There is no. A flange portion 142b extending in the indoor direction is formed at the inner peripheral chamber side end of the resin right vertical frame 142.

-Composition of inner and outer shoji-
(Structure of upper stile)
Since the upper stiles 21 and 31 constituting the inner and outer sashes 2 and 3 are substantially the same in structure, the upper stile 21 of the inner sash 2 will be described here.
As shown in FIG. 3, the upper stile 21 constituting the inner sash 2 has a metal upper stile 211 made of a metal material such as an aluminum alloy and a resin upper stile 212 arranged on the indoor side surface of the metal upper stile 211. ing.

The metal upper stile 211 has an upper stile main body 211a having a hollow portion and an opening that opens upward, and a panel frontage portion 211b that is connected to the inner circumference (lower side) of the upper stile main body 211a. There is. The panel frontage portion 211b is formed to be wider in the prospective direction than the upper stile main body portion 211a, and the lower end of the upper stile main body portion 211a on the indoor side is continuously provided so as to project toward the indoor side. Upper and lower locking portions for locking the resin upper stile 212 are formed at the upper end of the indoor side surface of the upper stile main body portion 211a and the lower end of the indoor side of the panel frontage portion 211b.

The resin upper stile 212 includes an upper wall portion 212a arranged on the indoor side surface of the upper stile main body portion 211a, a lower wall portion 212c arranged on the indoor side surface of the panel frontage portion 211b, and an upper wall portion 212a and a lower wall portion 212c. It has a prospective wall portion 212b that connects with. Upper and lower hollow portions 212d and 212e are formed on the upper wall portion 212a and the lower wall portion 212c, respectively.
Locking portions are formed at the upper end of the upper wall portion 212a and the lower end of the lower wall portion 212c, respectively, and the upper and lower ends formed at the upper end of the indoor side surface of the upper stile main body portion 211a and the lower end of the panel frontage portion 211b on the indoor side. The resin upper stile 212 is arranged on the indoor side with a space with respect to the metal upper stile 211 by being locked to each of the locking portions.
The upper stile 21 has high heat insulating performance due to the space between the resin upper stile 212 and the metal upper stile 211 and the upper and lower hollow portions 212d and 212e.

The upper stile 21 of the inner sash 2 is slidably guided to the upper frame 11, and when the inner and outer sash 3 are closed, the indoor side wall of the upper frame 11 is placed on the indoor side surface of the resin upper stile 212 of the upper stile 21. The airtight material s21 attached to the outdoor surface of the portion 111b is in contact with the airtight material s21.
On the other hand, the upper stile 31 of the outer sash 3 is slidably guided by the outdoor upper rail 111e of the upper frame 11, and the central wall portion 111d of the upper frame 11 is mounted on the indoor side surface of the resin upper stile 312 of the upper stile 31. The airtight material s31 attached to the outdoor surface of the above is in contact with the airtight material s31.

(Structure of lower stile)
As shown in FIG. 3, the lower stile 22 constituting the inner sash 2 is a metal lower stile 221 made of a metal material such as an aluminum alloy, and a resin lower stile 222 arranged on the indoor side surface of the metal lower stile 221 and made of a resin material. have.

The metal lower stile 221 of the inner sash 2 has a lower stile main body 221a for accommodating wheels w guided by an indoor rail provided in the lower frame 12 and a panel frontage connected to the inner circumference of the lower stile main body 221a. It has a part 221b. The panel frontage portion 221b is formed wider in the prospective direction than the lower stile main body 221a, and is continuously provided so as to project from the upper end of the lower stile main body 221a toward the room side. Upper and lower locking portions for locking the resin lower stile 222 are formed at the lower end of the indoor side surface of the lower stile main body 221a and the upper end of the indoor side of the panel frontage 221b.

The resin lower stile 222 of the inner sash 2 has a resin lower stile main body 222a composed of a plurality of hollow portions arranged in a prospective direction, and a plurality of fin pieces 222c extending from the lower surface of the resin lower stile main body 222a. The indoor hollow portion 222b arranged on the indoor side of the plurality of hollow portions extends toward the inner peripheral side of the other hollow portions, and covers the indoor side of the panel frontage portion 221b of the metal lower frame 121. Locking portions are formed at the upper end of the indoor hollow portion 222b and the lower end of the resin lower stile main body 222a, respectively, and are formed at the lower end of the indoor side surface of the lower stile main body 221a and the upper end of the panel frontage 221b on the indoor side. The resin lower stile 222 is arranged indoors with a space for the metal lower stile 221 by being locked to the upper and lower locking portions.
The lower stile 22 has high heat insulating performance due to the space between the resin lower stile 222 and the metal lower stile 221 and a plurality of hollow portions. Further, the plurality of fin pieces 222c extending from the lower surface of the resin lower frame main body 222a are close to the upper surface of the resin lower frame 122 of the lower frame 12, and the lower surface of the resin lower frame main body 222a and the resin lower frame 122. The space between the upper surface and the upper surface is divided in the prospective direction. As a result, a heat insulating space is formed between the lower frame 12 and the lower frame 22, and the heat insulating performance is improved between the inner sash 2 and the lower frame 12.

On the other hand, as shown in FIG. 2, the lower stile 32 constituting the outer sash 3 is a resin made of a metal lower stile 321 made of a metal material such as an aluminum alloy and a resin material arranged on the indoor side of the metal lower stile 321. It has a lower stile 322.
The metal lower stile 321 of the outer sash 3 is connected to the lower stile main body 321a for accommodating the wheels w guided by the outdoor lower rail portion 121f provided on the lower frame 12 and the inner circumference of the lower stile main body 321a. It has a panel frontage portion 321b. The panel frontage portion 321b is formed wider in the prospective direction than the lower stile main body 321a, and is continuously provided so as to project from the upper end of the lower stile main body 321a toward the room. Upper and lower locking portions for locking the resin lower stile 322 are formed at the lower end of the indoor side surface of the lower stile main body 321a and the upper end of the indoor side of the panel frontage 321b.

The resin lower stile 322 of the outer sash 3 includes a resin lower stile main body 322a made of a hollow portion, and an indoor resin stile 322b extending upward from the inner peripheral surface of the resin lower stile main body 322a on the indoor side and made of a hollow portion. It has a plurality of fin pieces 322c extending from the lower surface of the resin lower stile main body 322a. Locking portions are formed at the upper end of the indoor resin stile 322b and the lower end of the resin lower stile main body 322a, respectively, and are formed at the lower end of the indoor side surface of the lower stile main body 321a and the upper end of the panel frontage 321b on the indoor side. The resin lower stile 322 is arranged on the indoor side with a space for the metal lower stile 321 by being locked to the upper and lower locking portions.
The lower stile 32 has high heat insulating performance due to the space between the resin lower stile 322 and the metal lower stile 321 and the hollow portion. Further, the plurality of fin pieces 322c extending from the lower surface of the resin lower stile main body 322a are close to the upper surface of the outdoor cover portion 123c of the lower frame 12, and are close to the lower surface of the resin lower stile main body 322a and the outdoor cover portion. The space between the 123c and the upper surface is divided in the prospective direction. As a result, a heat insulating space is formed between the lower frame 12 and the lower frame 32, and the heat insulating performance is improved between the outer sash 3 and the lower frame 12.

(Composition of door stile)
Since the door tip stiles 24 and 33 constituting the inner and outer sashes 2 and 3 are substantially the same in structure, the door tip stile 24 of the inner sash 2 will be mainly described here.
As shown in FIG. 4, the door tip stile 24 constituting the inner sash 2 is a metal door stile 241 made of a metal material such as an aluminum alloy and a resin arranged on the indoor side surface of the metal door stile 241 and made of a resin material. It has a door stile 242.

The metal door tip stile 241 includes a door tip stile main body 241a composed of a hollow portion and an opening groove connected to the door end side of the hollow portion, and a panel frontage connected to the inner circumference of the door front stile main body 241a. The portion 241b is provided, and the pulling block f is arranged in the opening groove of the door end frame main body portion 241a. The panel frontage portion 241b is formed wider in the prospective direction than the door tip frame main body portion 241a, and is continuously provided so as to project from the inner peripheral end of the door tip frame main body portion 241a toward the indoor side.
A locking portion for locking the resin door tip stile 242 is formed at the door end side tip portion of the indoor side wall and the indoor inner peripheral end portion of the panel frontage portion 241b forming the opening groove of the door tip stile main body 241a. ing.

The resin door tip stile 242 includes a door tip side portion 242a covering the indoor side surface of the door tip stile main body 241a, a frontage side portion 242c covering the indoor side surface of the panel frontage portion 241b, a door front side portion 242a, and a frontage side portion 242c. It has a prospective wall portion 242b having a hollow cross section extending in the prospective direction to be connected.
The resin door tip stile 242 has a locking portion formed at the door end side end portion of the door tip side portion 242a and the inner peripheral side end portion of the frontage side portion 242c, and the door end stile main body portion 241a and the panel frontage portion 241b. By locking each of the upper and lower locking portions formed in the above, the metal door tip stile 241 has a space and is arranged on the indoor side.
The door tip stile 24 has high heat insulating performance due to the space between the resin door tip stile 242 and the metal door tip stile 241 and the hollow portion of the prospective wall portion 242b.

Further, in the closed state of the inner and outer shoji screens 2 and 3, between the right vertical frame 14 and the right vertical frame 24, the airtight material s24 arranged in the right vertical frame 14 comes into contact with the door end frame 24 and the resin. The right vertical frame 142 is close to the resin door tip stile 242. As a result, a semi-enclosed or sealed space S2 is formed by the door end side portion 242a of the resin door tip stile 242, the prospective wall portion 242b, and the resin right vertical frame 142 of the right vertical frame 14, and the right vertical frame 14 and the internal shoji 2 The heat insulation performance between and is improved.

On the other hand, in the closed state of the inner and outer sashes 2 and 3, the airtight material s33 arranged in the left vertical frame 13 comes into contact with the door end stile 33 between the left vertical frame 13 and the outer sash 3 and the auxiliary resin. The left vertical frame 133 is in contact with the resin door tip stile 332. As a result, a semi-enclosed or sealed space S3 is formed by the door end side portion 332a of the resin door tip stile 332 made of a resin material, the prospective wall portion 332b, and the secondary resin left vertical frame 133 of the left vertical frame 13, and the left vertical frame is formed. The heat insulating performance between the 13 and the external obstacle 3 is improved.

(Composition of the stile)
As shown in FIG. 4, the sash 23 constituting the internal sash 2 is a metal stile 231 made of a metal material such as an aluminum alloy, and resin members arranged on the outer peripheral side surface and the indoor side surface of the metal sash 231. It has a resin alloying stile 232 made of.

The metal mating stile 231 is connected to the mating stile main body 231a having a hollow portion and the airtight material s52 is attached to the outdoor side surface and the L-shaped piece is formed, and the inner circumference of the mating stile main body 231a. The panel frontage portion 231b is provided, and a plurality of locking portions for locking the resin mating stile 232 are formed on the outer peripheral side surface and the indoor side surface of the mating stile main body portion 231a and the panel frontage portion 231b. ..

The resin mating stile 232 is composed of a resin mating stile main body 232a having a plurality of hollow portions arranged in the prospective direction and the finding direction, and is locked to a plurality of locking portions formed on the metal mating stile 231. Therefore, the metal fitting stile 231 is arranged with a space from the outer peripheral side surface to the indoor side surface.
The combination stile 23 has high heat insulating performance due to the space between the resin combination stile 232 and the metal combination stile 231 and a plurality of hollow portions.

As shown in FIG. 4, the sash 34 constituting the outer sash 3 is made of a metal stile 341 made of a metal material such as an aluminum alloy and a resin material arranged on the indoor side surface of the metal stile 341. It has a resin alloying stile 342.

The metal mating stile 341 has a hollow portion, and an L-shaped piece forming a smoke return is formed on the indoor side surface in cooperation with the L-shaped piece formed on the outdoor side surface of the metal mating stile 231 of the inner sash 2. It has a combined stile main body 341a and a panel frontage 341b connected to the inner circumference of the combined stile main body 341a.
The coupling stile main body 341a is provided with an expansion material mounting portion 341c for mounting a heating expansion material that expands by heating on the indoor side surface of the hollow portion, and a resin mating stile 342 is provided on the inner peripheral side of the expansion material mounting portion 341c. A locking portion for locking is formed.

The resin mating stile 342 is attached so as to cover the indoor side surface of the mating stile main body portion 341a and the indoor side of the panel frontage portion 341b by being locked to the locking portion formed on the metal mating stile 341. .. In the sash 34, the airtight material s52 attached to the sash 23 of the sash 2 comes into contact with the resin stile 342 in the closed state of the sash 3 inside and outside, and the sash 34 of the sash 3 The metal sash 341 is not exposed to the indoor side.

(Other embodiments of the lower frame)
The second embodiment of the indoor rail composed of the metal rail and the resin rail will be described below with reference to FIG. The description of the same configuration as that of the previous embodiment will be omitted.
As shown in FIG. 5, the lower frame 12 constituting the sash frame 1 of the second embodiment is a metal lower frame 121 fixed to a building opening and made of a metal material such as an aluminum alloy, and a metal lower frame 121. It has a resin lower frame 122 which is arranged on the indoor side finding surface and is made of a resin material. Further, the lower frame 12 includes a resin rail member 123 fixed to the inner peripheral surface (upper surface) of the metal lower frame 121 on the outer sash 3 side in the closed state of the inner and outer sashes 2, and the inner and outer sashes 2. , 3 has a metal rail member 124 fixed to the inner peripheral surface (upper surface) of the metal lower frame 121 on the side of the shoji 2 in the closed state.

The metal lower frame 121 of the lower frame 12 includes a lower frame main body portion 121a attached to the inner circumference of the building opening, a rising portion 121b having a hollow cross section provided on the indoor side of the lower frame main body portion 121a, and a rising portion 121b. An indoor side wall portion 121c having an indoor side finding surface extending upward, an airtight material holding piece portion 121d extending from an upper position of the rising portion 121b to the outdoor side toward the outdoor side, and a lower frame main body portion 121a. It has an outdoor lower rail portion 121f provided on the outdoor outer upper surface of the above, and an outdoor wall portion 121g in which the outdoor end portion of the lower frame main body portion 121a is bent upward. That is, the embodiment shown in FIG. 5 is different from the embodiments shown in FIGS. 2 and 3 in that the metal lower frame 121 does not have the reinforcing core portion 121e on the upper surface of the rising portion 121b.
On the upper surface of the rising portion 121b, an engaging piece portion 121j on the outdoor side and an engaging piece portion 121k on the indoor side for holding the resin rail member 123 or the metal rail member 124 are provided at different heights. Has been done.

As shown in FIG. 5A, the resin rail member 123 includes a resin rail portion 123a having a hollow cross section and a shape protruding upward, an indoor cover portion 123b continuous with the indoor side of the resin rail portion 123a, and a resin rail. It has an outdoor cover portion 123c that is continuous with the outdoor side of the portion 123a, and is arranged in a range from the center position of the upper surface of the lower frame 12 in the finding direction to the left vertical frame 13.
In the resin rail portion 123a, a reinforcing core material 123e formed by forming a material such as metal in a plate shape is inserted inside the hollow.
In the reinforcing core material 123e, the protruding portions 123f and 123f project from both sides of the plate-shaped member, and the tips of the protruding portions 123f and 123f of the reinforcing core material 123e inserted into the hollow portion of the resin rail portion 123a are hollow portions. It is in contact with the inner wall of the.

The indoor cover portion 123b extends in the indoor direction so as to cover the upper surface of the rising portion 121b from the indoor side surface of the resin rail portion 123a, and the indoor end end abuts on the airtight material s22 attached to the indoor side wall portion 121c. ing. A locking claw 123g is formed on the lower surface of the indoor cover portion 123b, and the locking claw is in a state where the lower portion of the resin rail portion 123a is in contact with the engaging piece portion 121j on the outdoor side of the metal lower frame 121. The resin rail member 123 is attached to the metal lower frame 121 by engaging 123 g with the engaging piece 121k on the indoor side.
Further, the outdoor cover portion 123c extends in the outdoor direction from the outdoor surface of the resin rail portion 123a so as to cover the rising portion 121b and the upper surface of the airtight material holding piece portion 121d, and the outdoor outer tip is the airtight material holding piece portion. It is in contact with the airtight material s32 attached to 121d.

As shown in FIG. 5B, the metal rail member 124 of the lower frame 12 has a metal rail portion 124a having a hollow cross section and a shape protruding upward, and an outdoor leg extending diagonally downward from the outdoor surface of the metal rail portion 124a. It has a portion 124b, and is arranged in a range from the center position of the lower frame 12 in the finding direction to the right vertical stile 14.
At the lower end of the metal rail portion 124a, projecting portions 124d and 124d projecting to the left and right in the width direction are formed, and the projecting portions 124d and 124d are provided with the outdoor engaging piece portion 121j provided on the upper surface of the rising portion 121b and the chamber. It engages with the inner engaging piece portion 121k and is fixed to the upper surface of the rising portion 121b of the metal lower frame 121.
The resin rail portion 123a of the resin rail member 123 and the metal rail portion 124a of the metal rail member 124 are continuous at substantially the center position in the finding direction, and the indoor rails that guide the internal obstacle 2 are the inner and outer obstacles 2, When the outer obstacle 3 is closed, the region on the outer obstacle 3 side is formed by the resin rail member 123 which is a resin rail, and the region on the inner obstacle 2 side is formed by the metal rail member 124 which is a metal rail.

In the second embodiment described above, since the reinforcing core material does not protrude from the upper surface of the metal lower frame, resin rail members and metal rail members of various heights can be arranged, and the degree of freedom in designing the sash is increased. improves.

Hereinafter, a third embodiment of the indoor rail composed of the metal rail and the resin rail will be described with reference to FIG. The lower frame 12 of the third embodiment is different only in that a part of the resin rail portion 123a is open in the resin rail member 123 of the second embodiment.
Specifically, as shown in FIG. 6, in the resin rail portion 123a of the resin rail member 123, a part of the lower position of the outdoor cover portion 123c is cut out to form the cutout portion 123k. Then, the outdoor side portion of the notch portion 123k of the resin rail portion 123a is bent to form a locking claw 123m with respect to the engaging piece portion 121j on the outdoor side.
As a result, when the reinforcing core material 123e is inserted into the resin rail portion 123a, the notch portion 123k can be widened and inserted from there, and the resin rail member 123 can be easily manufactured.

As described above, the indoor rail that guides the inner sash 2 is formed by forming the region on the outer sash 3 side with the resin rail member 123 that is a resin rail when the inner and outer sashes 2 and 3 are closed, and the inner sash 2 side. Since the region is formed by the metal rail member 124 which is a metal rail, the portion exposed to the room when the shoji is closed can be completely covered with the resin member having high heat insulating property. Further, since the shoji 2 is supported by the metal rail at the time of closing, it is less likely to be deformed even when an external force is applied due to a strong wind or the like, and a fitting having excellent wind pressure resistance can be obtained.

The material of the reinforcing core material is not limited to a metal material such as an aluminum alloy or steel, and is not particularly limited as long as it has a high strength such as carbon.
In addition, the resin rail can be configured without being reinforced by a reinforcing core portion or a reinforcing core material by making the resin rail portion solid or using a high-strength material to obtain sufficient strength. is there.

1: Frame body 11: Upper frame 12: Lower frame 121: Metal lower frame (lower frame body)
121a: Lower frame main body 121b: 121c: Indoor side wall 121d: Airtight material holding piece 121e: Reinforcing core 121f: Outdoor lower rail 121g: Outdoor wall 121h: Engaging piece 121i: Protruding 121j: Engagement piece portion 121k: Engagement piece portion 122: Resin lower frame 122a: Resin lower frame main body 122b: Flange portion 123: Resin rail member 123a: Resin rail portion 123b: Indoor cover portion 123c: Outdoor cover portion 123e: Reinforcing core material 123f: Protruding part 123g: Locking claw 123k: Notch part 124: Metal rail member 124a: Metal rail part 124b: Outdoor leg part 124c: Outdoor leg part 124d: Protruding part 13: Left vertical frame 14: Right vertical frame 2 : Internal shoji 3: External shoji

Claims (1)

It has a frame that is placed in the opening of the building and a shoji that can be opened and closed inside the frame.
The frame body has a lower frame main body and an inner lower rail member attached to the lower frame main body to guide the shoji.
The inner and lower rail members are a heat insulating sash having a resin rail member arranged in the outer shoji side region when the shoji is closed and a metal rail member arranged in the inner shoji region when the shoji is closed.

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