JP6796701B2 - Insulated sash - Google Patents

Description

The present invention relates to a heat insulating sash having a shoji screen in which a resin sash is arranged on the indoor side of a metal sash.

In recent years, a heat insulating sash having a composite frame composed of a metal frame and a resin frame has become well known. In particular, in order to improve heat insulating properties, a hollow portion is formed in the resin frame to form a heat insulating layer by air. A heat insulating sash is known (Patent Document 1).

Japanese Patent No. 3143736

In Patent Document 1, by forming a hollow portion in the resin stile of the inner and outer shoji stiles, cold heat is prevented from being transmitted from the indoor side surface of the metal portion of the stile to the outdoor and inner directions, and the heat insulating property is enhanced. There is. In such a heat insulating sash, the transfer of cold heat from the metal part of the frame or frame is not limited to the transfer from the indoor side surface to the indoor / outdoor direction, for example, the inner peripheral surface of the frame or the combined frame. Cold heat is transmitted to the room from the inner peripheral surface and the outer peripheral surface toward the inner peripheral direction or the outer peripheral direction.
In particular, the outdoor cold heat is easily transmitted to the space between the frame and the stile, and the space between the stile and the glass, and the inner peripheral surface of the frame and the combination stile forming those spaces. When the inner peripheral surface is composed of metal parts, cold heat is transferred from those metal parts toward the inner peripheral direction. On the other hand, only a relatively large hollow portion is formed in the resin stile facing the inner peripheral surface of the metal portion forming the space between the frame and the stile and the space between the stile and the glass. In addition, cold heat may be transferred to the room by convection in the hollow portion.

In view of the above circumstances, in the heat insulating sash, the present invention relates to a portion of the resin sash of the shoji that faces the metal portion that constitutes the space between the frame and the stile and the space between the stile and the glass. By suppressing convection in the hollow portion, it is intended to prevent the transmission of cold heat transmitted in the inner peripheral (finding) direction and improve the heat insulating performance.

The present invention includes a window frame attached to a building opening and a shoji screen formed by attaching a resin sash having a hollow portion on the indoor side of the metal stile, and the resin stile is arranged on the indoor side of the metal stile. It has a hollow portion and a lateral hollow portion that is connected to the inner peripheral side of the indoor hollow portion and faces the expected inner peripheral surface of the metal stile, and the lateral hollow portion receives cold heat from the expected inner peripheral surface of the metal stile. It is a heat insulating sash that is divided into a plurality of sections in the finding direction by a partition wall that intersects the transmission direction.

Since convection in the hollow part of the resin frame facing the space between the frame and the stile and the space between the stile and the glass can be suppressed, the space between the frame and the stile and the space between the stile and the glass can be suppressed. It is possible to prevent the transmission of cold heat from the air and improve the heat insulation performance.

It is a vertical sectional view of the heat insulating sash which concerns on embodiment of this invention. It is sectional drawing of the heat insulation sash which concerns on 1st Embodiment of this invention. It is sectional drawing of the door end frame part of the outer sash of the heat insulating sash which concerns on 1st Embodiment of this invention. It is sectional drawing of the heat insulation sash which concerns on 2nd Embodiment of this invention. It is sectional drawing of the combination stile part of the sash of the heat insulating sash which concerns on the 2nd Embodiment of this invention. It is sectional drawing of the heat insulation sash which concerns on 3rd Embodiment of this invention. It is sectional drawing of the door end stile part of the outer sash for demonstrating the modification of the heat insulating sash which concerns on each embodiment of this invention.

The heat insulating sash according to the embodiment of the present invention will be described with reference to the drawings.
(Overall composition)
As shown in FIGS. 1 and 2, the heat insulating sash according to the embodiment of the present invention is formed by assembling the upper frame 11, the lower frame 12, and the left and right vertical frames 13 and 14 in four directions, and is installed in the opening of the building. The frame, upper stiles 21, 31, lower stiles 22, 32, door front sashes 23, 33, and combination sashes 24, 34 are assembled in four circumferences, and the panel body is fitted in the inner circumference. It is configured as a sliding window by supporting the inner and outer sashes 2 and 3 along the inner and outer guide rails formed in the frame body so as to be movable in the left-right direction.

(Structure of frame)
The upper frame 11 connects the outdoor metal frame 111 and the indoor metal frame 112 formed of a metal material such as aluminum by a connecting member 113 made of a heat insulating material such as resin, and is formed on the inner circumference of the lower surface of the indoor metal frame 112. It is configured by engaging the resin frame 114.
An outer guide rail 111a for guiding the outer sash 3 is hung on the lower surface of the outdoor metal frame 111 near the outside, and an inner guide rail 112a for guiding the inner sash 2 is provided from the outdoor end of the indoor metal frame 112. It is hanging.

The resin frame 114 is formed from an outdoor wall portion 114a that covers the indoor surface of the inner guide rail 112a of the indoor metal frame 112, an upper wall portion 114b that covers the lower surface of the indoor metal frame 112, and an indoor end of the upper wall portion 114b. It is composed of an indoor wall portion 114c that hangs downward and a forehead portion 114d that extends from the lower end of the indoor wall portion 114c to the indoor side.
Then, in a state where the upper wall portion 114b of the resin frame 114 is engaged with the inner circumference of the indoor metal frame 112, the building is fixed at a plurality of locations from the inner peripheral side by fixing means n such as screws penetrating the two. It is fixed to the opening.

Between the outer guide rail 111a and the inner guide rail 112a, a resin inter-rail upper cover 51 that covers the lower surface of the outdoor metal frame 111 is arranged.
The rail-to-rail upper cover 51 is configured as a substantially flat plate-shaped long member having a length substantially half that of the upper frame 11, and is a windbreak plate installed at least above the mating portion of the upper frame 11. Cold heat is transmitted into the room from the lower surface of the outdoor metal frame 111, which is arranged between (not shown) and the left vertical frame 13 and is exposed indoors when the inner and outer sashes 2 and 3 are closed. Is suppressed.

A hollow protrusion 71 is formed on the lower surface of the inter-rail upper cover 51 by a soft material, and air convection between the upper surface of the outer sash 3 and the upper frame 11 is suppressed to improve heat insulation. ..

The lower frame 12 connects the outdoor metal frame 121 and the indoor metal frame 122 formed of a metal material such as aluminum by a connecting member 123 made of a heat insulating material such as resin, and is formed on the inner circumference of the upper surface of the indoor metal frame 122. It is configured by engaging the resin frame 124.
An outer guide rail 121a for guiding the outer sash is provided on the upper surface of the outdoor metal frame 121 near the outside, and an inner guide rail 122a for guiding the inner sash is provided from the outdoor end of the indoor metal frame 122. ..
A resin-made lower cover 52 covering the upper surface of the outdoor metal frame 121 is arranged between the outer guide rail 121a and the inner guide rail 122a.

The rail-to-rail lower cover 52 is configured as a substantially flat plate-shaped long member having a length substantially half that of the lower frame 12, and is a combination block installed at least below the mating portion of the lower frame 12. It is arranged between (not shown) and the left vertical frame 13, and suppresses the transfer of cold heat into the room from the upper surface of the outdoor metal frame 121 that is exposed indoors when the inner and outer shoji 2 and 3 are closed. doing.

The resin frame 124 includes a bottom wall portion 124a that covers the upper surface of the indoor metal frame 122, an indoor wall portion 124b that extends above the indoor side end of the bottom wall portion 124a, and an indoor wall portion 124b that extends from the upper end of the indoor wall portion 124b to the indoor side. It is composed of a forehead portion 124c to be extended.

The left vertical frame 13 is formed of a metal material such as aluminum, and has a metal frame 131 having an inner peripheral surface provided with a pulling piece 131a with which a pulling block f arranged on the door end frame 33 of the outer shoji 3 abuts. It is composed of a resin frame 132 that is engaged and fixed to the inner peripheral surface of the metal frame 131 on the indoor side.

The resin frame 132 is composed of a main body 132a that is engaged with the metal frame 131 and covers the inner peripheral surface of the left vertical frame 13 on the indoor side, and a forehead portion 132b that extends to the indoor side of the main body 132a.
The main body 132a is provided with mounting recesses 132c that open in the inner peripheral direction at a plurality of locations in the vertical direction, and penetrates the bottom wall of the mounting recesses 132c in a state of being polymerized on the metal frame 131 of the left vertical frame 13. It is fixed to the opening of the building by fixing at a plurality of places from the inner peripheral side with fixing means n such as screws.

Then, when the panel 91 is fitted into the opening of the mounting recess 132c, a hollow portion is formed by the mounting recess 132c and the panel 91 to prevent cold heat from being transmitted from the fixing means n such as a screw to the indoor side. At the same time, it suppresses the deterioration of design.
The mounting recess 132c may be configured as a groove portion continuous in the longitudinal direction (vertical direction) of the resin frame 132.

The right vertical frame 14 is formed of a metal material such as aluminum, and has a metal frame 141 having an inner peripheral surface provided with a pulling piece 141a with which a pulling block f arranged on the door end frame 23 of the shoji 2 abuts. It is composed of a resin frame 142 that is engaged and fixed to the inner peripheral surface of the metal frame 141 on the indoor side.

The resin frame 142 includes a mounting portion 142a that is engaged with the metal frame 141, a right vertical wall portion 142b that extends in the inner peripheral direction from the indoor side end of the mounting portion 142a, and a chamber from the inner peripheral side end of the right vertical wall portion 142b. It is composed of a forehead portion 142c extending inward, and in a state where the mounting portion 142a is engaged with the metal frame 141, the building is fixed at a plurality of locations from the inner peripheral side by fixing means n such as screws penetrating the two. It is firmly fixed to the opening of.

(Composition of shoji)
The internal shoji 2 is composed of an upper stile 21, a lower stile 22, a door tip stile 23, and a combination stile 24.
The upper stile 21 is configured as a composite stile composed of a metal stile 211 formed of a metal material such as aluminum and a resin stile 212 arranged on the indoor side of the metal stile 211, and the resin stile 212 is an inner guide rail. It constitutes an indoor portion of the guide groove guided by 112a.
Further, the resin stile 212 is provided with a plurality of hollow portions to improve the heat insulating property of the upper stile 21.

A tight material that comes into contact with or is close to the inner guide rail 112a is attached to the upper end of the outdoor side and the upper end of the indoor side of the guide groove, and the upper frame 11 and the upper stile 21 are airtightly provided to the upper stile 21. It prevents outside air from directly entering the room through between the upper surface and the lower surface of the upper frame 11.

Similarly, the lower stile 22 of the internal sash 2 is configured as a composite stile composed of a metal stile 221 formed of a metal material such as aluminum and a resin stile 222 arranged on the indoor side of the metal stile 221. A guide groove is formed on the outer periphery of the lower stile 22, and a wheel a running on the inner guide rail 122a formed on the lower frame 12 is arranged in the guide groove.

A tight material that comes into contact with the inner guide rail 122a is attached to the lower end of the outdoor side of the guide groove so that the lower frame 12 and the lower stile 22 are airtight, and the lower surface of the lower stile 22 and the upper surface of the lower frame 12 It prevents the outside air from directly entering the room through the space.

The door-end stile 23 of the shoji 2 is configured as a composite stile composed of a metal stile 231 formed of a metal material such as aluminum and a resin stile 232 arranged on the indoor side of the metal stile 231. The 232 has a hollow structure composed of a plurality of hollow portions to improve the heat insulating property of the door end stile 23.
A pulling block f that comes into contact with the pulling piece 141a formed on the right vertical frame 14 is installed on the outer periphery of the door end stile 23, and is pulled to the outer peripheral end of the metal stile 231 when the internal shoji 2 is closed. A tight material that comes into contact with the piece 141a is attached, and the space between the right vertical frame 14 and the door end stile 23 is airtight, and the outer peripheral surface of the door tip stile 23 and the inner peripheral surface of the right vertical frame 14 are separated from each other. It prevents outside air from entering the room directly through it.

The combination stile 24 of the internal shoji 2 is composed of a metal stile 241 formed of a metal material such as aluminum and a resin stile 242 arranged on the indoor side of the metal stile 241, and the resin stile 242 is inside the metal stile 241. It is integrated as a composite stile so as to cover the side surface and the outer peripheral surface, that is, the surface exposed to the room when the shoji is closed.
A smoke return c is formed between the outdoor side surface of the metal stile 241 and the indoor side surface of the combination stile 34 of the outer sash 3.

On the other hand, the outer sash 3 is composed of an upper stile 31, a lower stile 32, a door tip stile 33 and a sash 34, and the entire sash 34 is formed of a metal material such as aluminum. It differs from the internal shoji 2 in that it is not configured as a compound stile.
Since the other configurations of the external shoji 3 are almost the same, the description thereof will be omitted.

− First Embodiment −
In the conventional heat insulating sash, the transfer of cold heat from the metal sash is mainly prevented by covering the indoor side surface of the metal sash with a resin sash, but the inner peripheral surface of the frame and the inner peripheral surface of the combined sash Not enough consideration was given to the transfer of cold heat transmitted into the room from the direction of finding.

Therefore, in the heat insulating sash of the first embodiment shown in FIG. 2, the transfer of cold heat transferred into the room from the inner peripheral surface of the frame toward the inner peripheral direction (indicated by "Q1" in the figure) is efficient. It has a configuration to prevent it.
The specific configuration of the heat insulating sash according to the first embodiment of the present invention will be described below with reference to FIG.
The door end stile 33 of the outer sash 3 of the heat insulating sash shown in FIG. It is formed by connecting in.

The resin stile 332 has an indoor hollow portion 332a arranged on the indoor side of the metal stile 331 and a door end side hollow portion (side hollow portion) connected to the door end side (outer peripheral side) of the indoor hollow portion 332a. ) 332b and a glass frontage portion 332c which is connected to the inner peripheral side of the indoor side hollow portion 332a to form a glass holding groove for holding a panel such as glass, and is composed of an indoor side hollow portion 332a and a door end side hollow portion ( It is locked and fixed to the metal stile 331 by a locking portion provided on the outer peripheral surface of the side hollow portion) 332b.

The indoor side hollow portion 332a is divided into a plurality of sections in the prospective direction by the partition wall w, and by dividing the convection generated in the indoor side hollow portion 332a in the prospective direction, the convection is mainly divided from the indoor side surface of the metal frame 331 into the room. The transfer of cold heat in the direction (indicated by "Q2" in the figure) is suppressed.

The door end side hollow portion (side hollow portion) 332b is formed to have a larger width dimension in the prospective direction than the indoor side hollow portion 332a, and a plurality of door end side hollow portions (lateral hollow portions) in the finding direction (left-right direction in FIG. 3) are formed by the partition wall w. By dividing into compartments and dividing the convection generated in the door end side hollow portion (side hollow portion) 332b in the finding direction, mainly from the inner peripheral surface to the inner peripheral direction of the frame body (left vertical frame 13). The transfer of cold heat (Q1) toward is suppressed. That is, at the indoor side hollow portion 332a and the door end side hollow portion (side hollow portion) 332b of the resin stile 332, the lines (Q1 and Q2) indicating the transfer (movement) of cold heat in the respective hollow portions intersect. By providing a partition wall w (in other words, a section divided by the partition wall w) in the partition wall w, the heat insulating property of each hollow portion is improved.

-Second embodiment-
4 and 5 show a second embodiment of the present invention.
The heat insulating sash of the second embodiment further includes a configuration for preventing the transfer of cold heat (indicated by "Q3" in the figure) transmitted into the room from the inner peripheral surface of the combination sash toward the finding direction. ing.

As shown in FIGS. 4 and 5, the estimated size of the metal frame 241 is set larger than the estimated size of the glass frontage in order to increase the strength of the combination sash 24 of the inner sash 2 of the heat insulating sash. Therefore, the indoor side of the metal stile 241 may protrude toward the indoor side from the panel such as glass.
In such a combination stile 24, cold heat transfer (Q3) occurs from the inner peripheral surface of the metal stile 241 toward the room in the inner peripheral direction, but the heat insulation of the second embodiment shown in FIGS. The sash has a configuration that efficiently prevents the transfer of cold heat. Hereinafter, a specific description will be given with reference to FIG.

The metal stile 241 of the combination stile 24 of the inner sash 2 of the heat insulating sash shown in FIG. 5 has a larger width dimension in the expected direction than the metal stile 241 shown in FIG. 3, and is made of glass or the like. An inner peripheral surface 241a that projects toward the indoor side of the panel and faces the indoor space on the indoor side of the panel such as glass exists on the inner circumference thereof.
On the other hand, the resin stile 242 has a glass frontage that forms one side of the glass holding groove continuously on the inner circumference of the indoor side hollow portion 242a arranged on the indoor side surface of the metal stile 241 and the indoor side hollow portion 242a. It is composed of a hollow portion (side hollow portion) 242b and an outer peripheral wall portion 242c that covers the outer peripheral surface of the metal frame 241, and is provided in the outer peripheral wall portion 242c and the glass frontage hollow portion (side hollow portion) 242b. It is locked and fixed to the metal frame 241 by the portion.

A rib r is formed on the inner peripheral surface of the outer peripheral wall portion 242c, and when the rib r abuts on the outer peripheral surface of the metal stile 241, a hollow portion is formed between the outer peripheral wall portion 242c and the outer peripheral surface of the metal stile 241. Has been done.
The indoor side hollow portion 242a is formed by a hollow portion having substantially the same width as the indoor side surface of the metal stile 241. Mainly, cold heat is transmitted from the indoor side surface of the metal stile 241 toward the indoor side (by "Q4" in the drawing). Shown.) Is suppressed.

The glass frontage hollow portion (side hollow portion) 242b forms one side of the glass holding groove by forming a large width dimension in the prospective direction while flushing the indoor side surface with the indoor side hollow portion 242a. It is arranged on the inner peripheral side of the inner peripheral surface 241a of the metal frame 241. Then, it is divided into a plurality of sections in the finding direction (left-right direction in FIG. 5) by the partition wall w, and the convection generated in the hollow glass frontage (side hollow portion) 242b is divided in the finding direction to be main. In addition, the transfer of cold heat (Q3) from the inner peripheral surface 241a of the metal frame 241 toward the inner peripheral direction is suppressed.

-Third embodiment-
FIG. 6 shows a third embodiment of the present invention.
In the heat insulating sashes of the first and second embodiments shown in FIGS. 2 to 5, the partition wall w provided in the hollow portion of the resin frame is provided substantially at right angles to the finding direction, but is shown in FIG. In the heat insulating sash of the embodiment, the first and second partition walls w in the hollow portion of the resin frame are composed of partition walls w that incline from the outer peripheral side to the inner peripheral side as the partition wall w goes from the indoor side to the outdoor side. It is different from the embodiment of.

By providing the partition wall w with an inclination, it is possible to divide the side hollow portion in the finding direction and also in the prospective direction, so that cold heat is transmitted from the inner peripheral surface of the frame or stile toward the inner peripheral direction. At the same time, it is possible to suppress the transfer of cold heat from the indoor surface of the metal outdoor portion of the stile.
In the embodiment shown in FIG. 6, the partition wall w is provided at an angle of about 45 degrees with respect to the finding surface, but the partition wall w is a line indicating the transfer (movement) of cold heat in the hollow portion (for example, Q1). It may intersect with Q4), and the inclination angle of the partition wall w can be appropriately set according to the transfer (movement) condition of cold heat in the heat insulating sash and other conditions.

-Modification example-
FIG. 7 shows a modified example of the first to third embodiments.
For example, the indoor hollow portion 332a of the first embodiment shown in FIG. 3 is formed with a partition wall that divides the hollow portion in the finding direction (in the same direction as Q2) for reasons such as maintaining the strength of the hollow portion. It was.
In the modified example shown in FIG. 7, by not providing a partition wall for dividing the indoor hollow portion 332a in the finding direction, it is possible to prevent cold heat from being transmitted in the prospective direction through the partition wall in the indoor hollow portion 332a. ..
Similarly, in the door end side hollow portion (side hollow portion) 332b, the door end side hollow portion (side) is provided by not providing a partition wall that separates the door end side hollow portion (side hollow portion) 332b in the prospective direction. The hollow portion) 332b prevents cold heat from being transmitted in the finding direction through the partition wall.
In addition, also in the second and third embodiments, by not providing a partition wall along the direction of cold heat transfer in the hollow portion forming the heat insulating structure, the cold heat transfer is efficiently suppressed and the heat insulating property is further improved. Can be planned.

As described above, in the heat insulating sash of the embodiment of the present invention, the hollow portion of the indoor side portion made of resin constituting the composite sash is divided into a plurality of sections according to the transfer (movement) condition of cold heat in the heat insulating sash. Since it is divided, the heat insulating property of the heat insulating sash can be further improved without increasing the width dimension of the heat insulating sash more than necessary.
In the first to third embodiments and modified examples thereof, a heat insulating structure using partition walls is adopted for the vertical stile, but the structure is not particularly limited to the vertical stile, and the upper stile or the lower stile is not particularly limited. It is also possible to adopt for.

2: Shoji screen 24: Combined stile 241: Metal stile 241a: Inner peripheral surface 242: Resin stile 242a: Indoor side hollow part 242b: Glass frontage hollow part (side hollow part)
242c: Outer wall r: Rib w: Partition wall

Claims (1)

It is equipped with a window frame that can be attached to the opening of a building and a shoji that is made by attaching a resin stile that has a hollow part inside the metal stile.
The resin sash has an indoor hollow portion arranged on the indoor side of the metal stile and a lateral hollow portion connected to the inner peripheral side of the indoor hollow portion and facing the expected inner peripheral surface of the metal stile. The side hollow part is a heat insulating sash that is divided into multiple sections in the finding direction by a partition wall that intersects the direction of cold heat transmission from the prospective surface of the inner circumference of the metal frame.

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