JP2001193358A - Vertical multiple window sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical multiple window sash excellent in heat insulation. SOLUTION: An upper frame 1, a lower frame 2 and left and right vertical frames 3 forming a sash frame body 4 are made in a shape to cover an indoor side part of metal frames 1a, 2a, 3a with resin frames 1b, 2b, 3b. It is a vertical multiple window sash forming a transom 5 horizontally installed between the above left and right vertical frames 3 of a metal frame 30, an upper resin cover 31, a lower resin cover 32 and a heat insulation covering member 33. Consequently, as the upper frame 1, the lower frame 2, the vertical frames 3 and the transom 5 are excellent in heat insulation, the vertical multiple window sash becomes excellent in heat insulation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step window sash in which openings are formed vertically over a sash frame body.

[0002]

2. Description of the Related Art A step window sash disclosed in Japanese Utility Model Publication No. 59-7984 has been proposed. In this step window sash, an upper opening and a lower opening are formed by bridging an eyelessly on a sash frame body having an upper frame, a lower frame, and left and right vertical frames.

[0003]

The upper frame, the lower frame, the right and left vertical frames, and the stitches forming the above-mentioned step window sash are generally made of extruded aluminum, and the step window sash is inferior in heat insulation. It is. For this reason, heat is easily transmitted to the indoor side and the outdoor side,
Condensation may form on the indoor side during winter.

Accordingly, an object of the present invention is to provide a step window sash capable of solving the above-mentioned problems.

[0005]

According to a first aspect of the present invention, there is provided a sash frame in which an upper frame, a lower frame, and right and left vertical frames in which a metal frame is covered with a resin frame on the indoor side, and a sash frame are described. An upper opening and a lower opening are formed in a seamless manner between the left and right vertical frames, and the blind is a metal frame, and an upper resin cover that covers a portion of the upper surface of the metal frame on the indoor side, A step window sash characterized by being formed of a lower resin cover that covers a lower surface indoor side portion of a metal frame and a heat insulating cover member that covers an indoor side surface of the metal frame.

According to a second aspect of the present invention, in the first aspect, the indoor side of the metal frame forms an upper mounting portion and a lower mounting portion, and the heat insulating covering member is a vertical plate, an upper mounting piece, and a lower mounting piece. Almost U-shaped,
The upper mounting piece and the lower mounting piece have projections, the upper mounting piece overlaps with the upper mounting portion, the upper resin cover overlaps with the upper mounting piece, and they are fixed with screws, and the lower mounting portion has This is a step window sash in which the lower mounting piece is superimposed, the lower resin cover is superposed on the lower mounting piece, and they are fixed with screws.

According to a third aspect of the present invention, in the second aspect, the upper mounting piece and the lower mounting piece of the heat insulating cover member have rising portions, and each of the rising portions has an indoor end of the upper resin cover and a lower resin cover. Are heat insulating sashes whose end portions on the indoor side are in contact with each other.

According to a fourth aspect of the present invention, in the second aspect of the present invention, there is provided an engagement receiving portion for mutually engaging the upper mounting portion and the lower mounting portion of the metal frame and the upper mounting portion and the lower mounting portion of the heat insulating cover member. It is a step window sash provided with each stop part.

According to a fifth aspect of the present invention, in the first aspect, the expected size of the blind is larger than the vertical frame, and the heat insulating cover member is formed to protrude more indoors than the vertical frame. Is a step window sash in which an end cap is detachably attached to an end of the step window.

A sixth aspect of the present invention is the step window sash according to the fifth aspect, wherein the end cap has a cover piece for covering an end of the protruding portion of the heat insulating covering member.

According to a seventh aspect of the present invention, in the first aspect, the expected size of the blind is larger than the vertical frame, the heat insulating cover member is formed to protrude more indoors than the vertical frame, and the vertical frame resin frame is attached. And a step window sash attached to the inner surface of the sash mounting opening via an inner surface of the sash mounting opening, the protruding portion of the heat insulating cover member being longer than other portions.

According to an eighth aspect of the present invention, in the seventh aspect, a door is provided on the indoor side of the upper frame, a middle door is provided on the blind side of the room as a heat insulating cover member, and a threshold is provided on the indoor side of the lower frame. The sash, the sash, and the sill are wooden, and the vertical window frame is a step window sash whose resin frame is a resin containing wood powder.

A ninth invention is a step window sash according to the eighth invention, wherein a height-adjustable heat-insulating auxiliary covering member is mounted on the upper part of the Nakagami gate.

According to a tenth aspect, in the first aspect, a plurality of sashes are mounted on the upper opening so that the butt frames abut each other at an intermediate portion in the left-right direction when the sashes are closed. This is a step window sash in which a hanging bundle is fixed over the metal frame of the upper frame and the metal frame on the outside of the butt frame.

According to an eleventh aspect, in the first aspect, the metal frame of the lower frame is a heat insulating frame in which an outdoor member and an indoor member are connected by a heat insulating material, and the indoor member is covered with a resin frame. It is a step window sash.

[0016]

According to the first aspect, the upper frame, the lower frame, and the vertical frame hardly conduct heat to the indoor side and the outdoor side, and are excellent in heat insulation. Heat is hardly transmitted to the indoor side and the outdoor side, and the heat insulation is excellent. Therefore, it is a step window sash excellent in heat insulation.

According to the second aspect of the present invention, the upper mounting portion, the upper mounting piece, and the upper resin cover are polymerized and fixed with screws, and the lower mounting portion, the lower mounting piece, and the lower resin cover are polymerized and fixed with screws. By doing so, you can assemble your eyes.

Further, by providing the projection on the upper mounting piece, the contact area of the upper mounting section, the upper mounting piece, and the upper resin cover is small, and by providing the projection on the lower mounting piece, the lower mounting section and the lower mounting piece can be separated. The contact area of the lower resin cover is small. Therefore,
Seamless heat insulation is improved.

Further, since the tightening force of the screw is supported by the projection, the upper resin cover and the lower resin cover are not crushed when the screw is tightened with a strong force.

According to the third aspect, the upper resin cover and the lower resin cover are not visible from the room due to the rising portion, so that when the upper resin cover and the lower resin cover are wavy deformed due to thermal elongation, the waving deformation is reduced. To hide it from the room.

According to the fourth aspect, the upper mounting piece and the upper mounting section, and the lower mounting piece and the lower mounting section can be connected by locking the locking section and the locking receiving section. It can be temporarily fixed to the frame by positioning it inside and outside the room. This makes it easy to attach the heat insulating cover member. Further, since the upper resin cover and the lower resin cover can be screwed with both hands after temporarily fixing the heat insulating cover member, the work of attaching the upper and lower resin covers is easy.

According to the fifth aspect, when the resin frame of the vertical frame is fixed to the inner surface of the interior material, the end cap is in contact with the inner surface of the interior material and protrudes more indoors than the resin frame of the heat insulating cover member. The gap between the portion and the inner surface of the interior material can be closed.

According to the sixth aspect, when a gap is formed between the heat insulating cover member and the end cap due to shrinkage, the gap is hidden by the cover piece and cannot be seen from the room.

According to the seventh aspect, since the seamless heat insulating cover member continues to the inner surface of the sash mounting opening, no gap is generated and the appearance is good.

According to the eighth aspect of the invention, the designs of the Kamoi, Naka-gamo, the sill and the vertical resin frame are unified, and the appearance is good.

According to the ninth aspect, even if the vertical dimension of the Nakagami is smaller than the blind, the upper part of the blind can be covered with the heat-insulating auxiliary covering member, and the metal frame is not exposed to the indoor side, so that the heat insulating property can be prevented. Is good and looks good.

[0027] According to the tenth aspect, it is possible to prevent the eye drops from hanging without hanging. Moreover, since the hanging bundle cannot be seen from the room by closing the shoji, the appearance is good.

According to the eleventh aspect, the lower frame has high strength and can be firmly attached to the building frame.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, an upper frame 1, a lower frame 2, and right and left vertical frames 3 are framed to form a sash frame 4. An eyelet 5 is suspended between the left and right vertical frames 3, and the sash frame 4 forms an upper opening 6 and a lower opening 7. An indoor side shoji 8 and an outdoor side shoji 9 are respectively mounted on the upper opening 6 and the lower opening 7 as shown by phantom lines.

As shown in FIGS. 2 and 3, the upper frame 1, the lower frame 2, and the left and right vertical frames 3 are made of metal frames 1a, 2a made of aluminum or the like.
3a and resin frames 1b, 2b, 3b that cover the indoor portions of the metal frames 1a, 2a, 3a. The upper frame 1, the lower frame 2, and the left and right vertical frames 3 are located on the outside and the inside of the room. It is an insulated frame that does not easily transmit heat. Thereby, the sash frame 4 is a heat insulating sash frame having excellent heat insulating properties.

As shown in FIG. 2, the metal frame 1 a of the upper frame 1 has a cross-sectional shape having a skeleton mounting piece 10 and an outdoor upper rail 11. positioned. As shown in FIG. 2, the resin frame 1 b of the upper frame 1 has a cross-sectional shape including a frame mounting portion 12, an indoor upper rail 13, an outdoor downward piece 14, and an interior material mounting piece 15.
The outdoor outside downward piece 14 is connected to the inside surface of the metal frame 1a near the room by a screw 16 so as to contact the indoor side surface of the outdoor outside upper rail 11. Frame mounting portion 12 of resin frame 1b
The auxiliary metal material 17 comes into contact with the upper rail 13 on the indoor side and the screw 1
8 is fixed. A frame attachment portion 12 of the resin frame 1b,
The interior material mounting piece 15 protrudes more indoors than the metal frame 1a.

The metal frame 2a of the lower frame 2 is
And an indoor member 21 connected to the indoor side member 21 by a heat insulating material 22,
The estimated dimensions are substantially the same as those of the lower frame 2. The outdoor member 20
Is a cross-sectional shape having a frame attachment piece 23, an outdoor lower rail 24, and an indoor lower rail 25. The frame attachment piece 23 is located at the middle of the lower frame 2 in the expected direction. The indoor side member 21 has a cross-sectional shape having an interior material mounting piece 26 and a skeleton mounting piece 27. The resin frame 2 b is attached so as to cover the upper surface of the interior material mounting piece 26 of the indoor member 21, and is in contact with the indoor lower rail 25 to cover the upper part of the heat insulating material 22. This prevents dew condensation on the interior material mounting piece 26 and prevents foreign matter such as dust from adhering to the heat insulating material 22.

As shown in FIG. 3, the metal frame 3a of the left and right vertical frames 3 has a frame mounting piece 28, and the frame mounting piece 28
Is located in the middle of the vertical frame 3 in the expected direction. Resin frame 3
b is attached so as to cover the inner surface of the metal frame 3a near the room, and has an interior material mounting piece 29 protruding from the metal frame 3a to the indoor side.

The frame mounting pieces 10, 23, 28 of the metal frames 1a, 2a, 3a are fixed to the outdoor surface B of the building frame A, and the portion of each frame closer to the room is located in the sash mounting opening C of the building frame A. It protrudes and is provided as a semi-external sash frame.

As shown in FIG. 2, the blind 5 has a metal frame 30 made of aluminum or the like, an upper resin cover 31 for covering the indoor side portion of the upper surface 30a of the metal frame 30, and a metal frame 30.
A lower resin cover 32 that covers the indoor side portion of the lower surface 30b of the base member 30 and a heat insulating cover member 33 that covers the indoor side surface 30c of the metal frame 30. The outdoor portion of the metal frame 30 is connected to the outdoor portion of the metal frame 3a of the vertical frame 3 with screws or the like, and the upper resin cover 31 and the lower resin cover 32 are continuous with the resin frame 3b of the vertical frame 3.

The metal frame 30 has an upper surface 30a and a lower surface 30b.
A substantially rectangular cross-section hollow shape having an indoor side surface 30c and an outdoor side surface 30d, and an upper outdoor side rail 3
4. The lower rail 35 on the indoor side is provided integrally and has a step shape substantially the same as the inner surface of the metal frame 2a of the lower frame 2. The indoor side portion of the upper surface 30a of the metal frame 30 is an upper mounting portion 36 for attaching the heat insulating cover member 33, and a rising piece 37 is integrally provided near the outdoor of the upper mounting portion 36.
An outdoor upper rail 38 is integrally provided on a lower surface 30b of the metal frame 30 and has substantially the same shape as the inner surface of the metal frame 1a of the upper frame 1. The lower portion 30b of the metal frame 30 has a lower mounting portion 39 on the indoor side in which the heat insulating cover member 33 is mounted.

The upper resin cover 31 has the same cross-sectional shape as the resin frame 2b of the lower frame 2 and is attached to the upper mounting portion 36 by screws, and is in contact with the indoor lower rail 35. The lower resin cover 32 has the same cross-sectional shape as the resin frame 1b of the upper frame 1 and is attached to the lower surface 30b in the same manner as the resin frame 1b of the upper frame 1.
Are screwed to the lower mounting portion 39.

The heat insulating cover member 33 is composed of a vertical plate 40, an upper mounting piece 41 and a lower mounting piece 42, and is made of resin having a substantially U-shaped cross section.
While the upper mounting piece 41 is screwed to the upper mounting portion 36,
The lower mounting piece 42 is screwed to the lower mounting portion 39. The projecting piece 43 of the vertical plate 40 is in contact with the indoor side surface 30c of the metal frame 30 to reduce the contact area.

The upper mounting portion 3 of the upper surface 30a of the metal frame 30
6, the lower mounting portion 39 of the lower surface 30b has a locking receiving portion 50 as shown in FIG. Upper mounting piece 4 of the heat insulating cover member 33
As shown in FIG. 4, the lower mounting piece 42 is integrally provided on the outdoor side surface of the vertical plate 40 toward the upper side and the lower side toward the outdoor side, and the upper end portion of the vertical plate 40 has the upper mounting piece. 4
One rising portion 51 is formed, and a lower end portion of the vertical plate 40 forms a rising portion 52 of the lower mounting piece 41.

The upper mounting piece 41 and the lower mounting piece 42 have a locking portion 53 for locking to the locking receiving portion 50.
1 is a pair of projections 54 projecting from upper and lower surfaces,
Has a projection 54 (a screw receiving portion) protruding from the upper surface, and by locking each locking portion 53 to each locking receiving portion 50, positions the heat insulating cover member 33 on the metal frame 30 in the indoor and outdoor directions. Can be temporarily stopped. The upper resin cover 31 and the lower resin cover 3
2 is superimposed on the upper mounting piece 41 and the lower mounting piece 42, respectively.
Screws 56 are screwed into the upper mounting portion 36 and the lower mounting portion 39 from the screw insertion holes 55 at the protrusions 54, and are mounted respectively.
The indoor side ends (bent portions) 31a and 32a are the rising portions 5
1 and 52 respectively.

As described above, the heat insulating cover member 33 is snap-locked to the metal frame 30 so that the heat insulating cover member 33 can be positioned in the indoor and outdoor directions and temporarily fixed. Therefore, the heat insulating cover member 3
After temporarily fixing the upper cover 3 and the lower cover 3
2 can be attached by the operator using both hands, so that the blind 5 can be easily assembled.

Further, the upper mounting portion 36 and the upper mounting piece 41, and the screw-fastened portion of the upper mounting piece 41 and the upper resin cover 31 are only in contact with the pair of projections 54, and the contact area is small. The heat conduction between the cover member 33 and the upper resin cover 31 is small and the heat insulating property is good. Similarly, the lower mounting portion 39 and the lower mounting piece 42, and the lower mounting piece 42 and the lower resin cover 32 only contact the projection 54, and the contact area is small, so that the metal frame 30, the heat insulating covering member 33, and the lower resin cover 32 Low heat conduction between layers and good heat insulation.

Since the tightening force of the screw 56 is supported by the contact portion of the projection 54, the upper resin cover 31 and the lower resin cover 32 will not be crushed even if the screw 56 is tightened with a strong force.

The indoor end 31 of the upper resin cover 31 is also provided.
a, Since the indoor side end 32a of the lower resin cover 32 is in contact with the upper and lower rising portions 51 and 52 of the heat insulating cover member 33, when the upper resin cover 31 and the lower resin cover 32 are deformed into a wavy shape due to thermal expansion. , The deformed portions of which are the upper and lower rising portions 51,
It is hidden by 52 and cannot be seen from the room.

Since the upper resin cover 31 is mounted so as to be pressed between the indoor lower rail 35 and the upper rising portion 51, the upper resin cover 31 and the upper rising portion 5 are fitted.
There is no gap between them. Similarly, since the lower resin cover 32 is attached by being pressed between the outdoor upper rail 38 and the lower rising portion 52, a gap is generated between the lower resin cover 32 and the lower rising portion 52. Nothing.

When the upper frame 1, the lower frame 2, and the blinds 5 are long and the opening width (found size) of the upper opening 6 and the lower opening 7 is large, as shown in FIGS. Attach the hanging bundle 60 over the frame 1 and the blind 5 and make the expected size of the blind 5 larger than the upper frame 1, the lower frame 2, and the vertical frame 3 so that the blind 5 does not sag and deform downward. I do.

As shown in FIG. 6, the hanging bundle 60 is made of an aluminum material having a rectangular cross-sectional hollow shape with an indoor vertical plate 61, an outdoor vertical plate 62, and left and right vertical plates 63. It has a screw hole 64 on the inner surface. Outdoor outdoor lower rail 34
The middle part in the longitudinal direction is cut out at two places, the hanging bundle 60 is fitted into the remaining part 34a, and the screw 65 is screwed from the outdoor vertical plate 62 into the remaining part 34a, so that the lower part of the hanging bundle 60 is Stick. The upper part of the blind 5 is fixed to the upper frame 1 by screwing screws from the upper frame 1 into the screw holes 64.

As shown in FIG. 6, a pair of indoor side sashes 8 are mounted in the upper opening 6, and when the pair of indoor side sashes 8 are closed, the butt frame 8a abuts. Since the hanging bundle 60 is attached to the outside of the room rather than the pair of butted frames 8a, the hanging bundle 60 cannot be seen from the room.
Even if the hanging bundle 60 is made of aluminum, the interior design is not impaired. Each of the frames forming the indoor side shoji 8 is a composite material in which a metal frame 8b is covered with a resin frame 8c on the indoor side.

As described above, when the expected size of the blind 5 is larger than the upper frame 1, the lower frame 2, and the vertical frame 3, the indoor side surface 30c of the blind metal frame 30 becomes vertical as shown in FIG. Since the upper and lower resin covers 31 and 32 have the same shape and dimensions as those shown in FIG. 2, the upper mounting piece 41 and the lower mounting piece 42 of the heat insulating cover member 33 are formed as shown in FIG. It is longer than that shown in Therefore, the upper mounting piece 41 and the lower mounting piece 4
2 is formed into a substantially crank-shaped shape, and intermediate portions thereof are defined as rising portions 51, 52, and the rising portions 51, 52 are formed.
The upper resin cover 31 and the lower resin cover 32 are attached in the same manner as the rising portions 51 and 52 shown in FIG. Thereby, the upper resin cover 31,
The lower resin cover 32 can also be used.

As described above, since the indoor side surface 30c of the blind metal frame 30 projects more toward the indoor side than the vertical frame 3, as shown in FIG.
A gap is formed between both end surfaces in the longitudinal direction of the heat insulating cover member 33 (end surfaces of the protruding portions) and the inner surface 66a of the interior material (eg, frame) 66. That is, the interior material mounting piece 2 of the resin frame 3b of the vertical frame 3
9 is fixed to the inner surface 66a of the interior material 66 with a fixing tool, and the interior side portion (upper resin cover 31, lower resin cover 32) of the blind 5 is in contact with the interior material attachment piece 29. A gap is generated between the portion that projects more indoors and the inner surface 66a of the interior material 66.

For this purpose, as shown in FIG. 7, end caps 70 are attached to both ends of the heat insulating cover member 33, and the end caps 70 are brought into contact with the inner surface 66a of the interior material 66 to close the gap.

As shown in FIG. 8, the end cap 70 has a shape in which a fitting piece 72 is provided on a vertical plate 71, and is made of a resin material. The fitting piece 72 is fitted to the inner surface 30 e of the metal frame 30 near the room, and the vertical plate 71 is connected to the end surface of the projecting portion of the heat insulating cover member 33 (the end surface of the vertical plate 40, the rising portion 5 of the upper mounting piece 41).
1 and the end face of the portion closer to the vertical plate 40 than the rising portion 52 below the lower mounting piece 42).
That is, the width of the vertical plate 71 is the same as the projecting dimension of the portion of the blind 5 that projects more toward the indoor side than the vertical frame 3.

As shown in FIG. 9, covering pieces 73 are provided at the upper end, the lower end, and the indoor vertical portion of the vertical plate 71 of the end cap 70.
May be provided so that the end of the protruding portion of the heat insulating cover member 33 is fitted to the cover piece 73 as shown by a virtual line in FIG. In this way, when a gap is formed between the heat insulating cover member 33 and the vertical plate 71 due to the contraction and deformation of the heat insulating cover member 33, the gap is not seen by the cover piece 73, so that the appearance is good.

Further, as shown in FIG. 10, a notch 66b for attaching a vertical plate called a hiccup is formed in the interior material 66,
If the inner surface 66a of the interior material 66 and the interior material attachment piece 29 of the resin frame 3b of the vertical frame 3 are flush, the inner surface 66a of the interior material 66 and the heat insulating cover can be used without using the end cap 70 described above. It is possible to prevent a gap from being formed between the protruding portion of the member 33 and the end face.

As shown in FIG. 11, the resin frame 3b of the vertical frame 3
When the resin frame 3b is fixed to the inner surface E of the column D via the attachment 74 with a fixing tool, the outdoor part is located outside the rising portion 51 on the upper mounting piece 41 of the heat insulating cover member 33. Rise portion and rising portion 5 below lower mounting piece 42
By cutting off the portion closer to the outside of the room than 2 (that is, the portion other than the portion protruding to the room side than the vertical frame 3) as shown by the imaginary line in FIG. 10, the protruding portion described above is lengthened. It contacts the inner surface E of the column D. By doing so, no gap is formed between the inner surface E of the pillar D (the inner surface of the sash mounting opening) and the end surface of the protruding portion of the heat insulating cover member 33.

As shown in FIGS. 12 and 13, the frame mounting pieces 1 of the metal frames 1a, 2a, 3a of the upper frame 1, the lower frame 2, and the vertical frame 3 are shown.
0, 23, and 28 are located at the end of each frame in the expected direction indoor side, and they are fixed to the outdoor surface B of the building frame A,
An external sash frame is formed so that the indoor side of each frame does not project into the sash mounting opening C. A wooden gate 80 is provided continuously with the indoor side of the upper frame 1, a wooden midgate 81 is provided continuously with the indoor side of the blind 5, and a wooden gate 81 is provided continuously with the indoor side of the lower frame 2. Sill 82 is provided. The Nakagaoi 81 protrudes up and down from the metal frame 30 of the blind 5.
Are also used as the heat-insulating cover member 33 that covers the indoor side surface 30c of the metal frame 30 forming the blind 5.

In this case, the upper resin cover 31 of the blind 5 is fitted and mounted between the lower rail 35 on the indoor side and the rising piece 37, so that the shape of the lower frame 2 is different from that of the resin frame 2b. The resin frame 2b of the lower frame 2 is divided into a cover portion 2b-1 and a mounting portion 2b-2, and the cover portion 2b-1 is
The same cross-sectional shape as that of the upper resin cover 31 may be used. In this case, the resin frame 1b of the upper frame 1 and the lower resin cover 32 of the blind 5 are also used as the same cross-sectional shape, and the frame mounting pieces 12 are vertically oriented, and the fixtures are attached to the outdoor side surfaces of the Kamoi 80 and the Nakagaoi 81. To fix.

The Kamoi 80, Naka Kamoi 81, and Sill 82 are made of wood, and the resin frame 3b of the vertical frame 3 is made of resin containing wood flour.
The interior design of the room is unified and looks good.

As shown in FIG. 12, the metal frame 1a of the upper frame 1
Is a heat-insulated shape member in which an outdoor member 20 and an indoor member 21 are connected by a heat insulating material 22, similarly to the metal frame 2a of the lower frame 2.

As shown in FIG. 14, when the vertical dimension of the Nakagaoi 81 is smaller than the blind 5 and the upper part of the metal frame 30 protrudes upward from the upper surface 81a of the Nakagaoi 81, The heat-insulating auxiliary covering member 90 whose height is adjustable is attached. The heat-insulating auxiliary covering member 90 is composed of a first member 91 fixed to the upper surface 81a of the Nakagaoi 81 in an L-shape with resin, and a second member 92 attached to the metal frame 30 in a vertical plate shape with resin.
And a shape in which the upper part of the first member 91 is overlapped with the lower part of the second member 92 in the indoor / outdoor direction. In FIG.
The metal frames 1a and 2a of the upper frame 1 and the lower frame 2 have an integral shape.

The metal frames 1a, 2a of the upper frame 1 and the lower frame 2
A shutter frame may be integrally provided on the outside of the vehicle.

[0062]

According to the first aspect of the present invention, the upper frame, the lower frame, and the vertical frame hardly conduct heat to the indoor side and the outdoor side, and are excellent in heat insulation. Heat is hardly transmitted to the indoor side and the outdoor side, and the heat insulation is excellent. Therefore, it is a step window sash excellent in heat insulation.

According to the second aspect of the present invention, the upper mounting portion, the upper mounting piece, and the upper resin cover are polymerized and fixed with screws, and the lower mounting portion, the lower mounting piece, and the lower resin cover are polymerized to form a screw. You can assemble a blind eye by fixing with.

Also, by providing the projection on the upper mounting piece, the contact area of the upper mounting section, the upper mounting piece, and the upper resin cover is small, and by providing the projection on the lower mounting piece, the lower mounting section, the lower mounting piece, The contact area of the lower resin cover is small. Therefore,
Seamless heat insulation is improved.

Further, since the fastening force of the screw is supported by the projection, the upper resin cover and the lower resin cover are not crushed when the screw is tightened with a strong force.

According to the third aspect of the present invention, since the upper resin cover and the lower resin cover are not visible from the room due to the rising portion, when the upper resin cover and the lower resin cover are wavy deformed due to thermal elongation, the wavy deformation is prevented. It can be hidden from the room by hiding it at the rising part.

According to the fourth aspect of the present invention, the upper mounting piece and the upper mounting section, and the lower mounting piece and the lower mounting section can be connected by locking the locking section and the locking receiving section. Can be temporarily positioned on the metal frame in the indoor / outdoor direction. This makes it easy to attach the heat insulating cover member. Further, since the upper resin cover and the lower resin cover can be screwed with both hands after temporarily fixing the heat insulating cover member, the work of attaching the upper and lower resin covers is easy.

According to the invention of claim 5, when the resin frame of the vertical frame is fixed to the inner surface of the interior material, the end cap is in contact with the inner surface of the interior material and the interior cap is closer to the room than the resin frame of the heat insulating cover member. The gap between the portion protruding from the inside and the inner surface of the interior material can be closed.

According to the sixth aspect of the present invention, when a gap is formed between the heat insulating cover member and the end cap due to contraction, the gap is hidden by the cover piece and cannot be seen from the room.

According to the seventh aspect of the present invention, since the blind heat-insulating cover member continues to the inner surface of the sash mounting opening, no gap is generated and the appearance is good.

According to the eighth aspect of the present invention, the designs of the resin frame of the Kamoi, Nakagaoi, the sill and the vertical frame are unified, and the appearance is good.

According to the ninth aspect of the present invention, even when the vertical dimension of the Nakagami is smaller than that of the blind, the upper part of the blind can be covered with the heat-insulating auxiliary covering member, and the metal frame is not exposed to the indoor side. Good heat insulation and good appearance.

According to the tenth aspect of the present invention, it is possible to prevent the eyes from dropping by the hanging bundle. Moreover, since the hanging bundle cannot be seen from the room by closing the shoji, the appearance is good.

According to the eleventh aspect, the lower frame has a high strength and can be firmly attached to the building frame.

[Brief description of the drawings]

FIG. 1 is an inside view of a step window sash.

FIG. 2 is a longitudinal sectional view of a step window sash.

FIG. 3 is a cross-sectional view of a step window sash.

FIG. 4 is an enlarged vertical sectional view of a blind side of an indoor side.

FIG. 5 is a longitudinal sectional view showing a second embodiment of the present invention.

FIG. 6 is a cross-sectional view of the hanging bundle attaching portion.

FIG. 7 is a plan view of a vertical frame and a blind joint.

FIG. 8 is a perspective view of an end cover.

FIG. 9 is a perspective view showing a second embodiment of the end cover.

FIG. 10 is a plan view showing a second embodiment of the vertical frame and the blind joint.

FIG. 11 is a plan view showing a third embodiment of a vertical frame and a blind joint.

FIG. 12 is a longitudinal sectional view showing a second embodiment of a step window sash.

FIG. 13 is a cross-sectional view showing a second embodiment of the step window sash.

FIG. 14 is a longitudinal sectional view showing a third embodiment of a step window sash.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Upper frame 1a ... Metal frame 1b ... Resin frame 2 ... Lower frame 2a ... Metal frame 2b ... Resin frame 3 ... Vertical frame 3a ... Metal frame 3b ... Resin frame 4 ... Sash frame body 5 ... Eyeless 6 ... Upper opening 7 Lower opening 8 Indoor sliding door 8a Butt frame 30 Metal frame 30a Upper surface 30b Lower surface 30c Indoor side surface 31 Upper resin cover 32 Lower resin cover 33 Heat insulating cover member 36 Upper mounting portion 39 ... Lower mounting part 40 ... Vertical plate 41 ... Upper mounting piece 42 ... Lower mounting piece 50 ... Engagement receiving part 51 ... Rising part 52 ... Rising part 53 ... Engaging part 54 ... Protrusion 60 ... Hanging bundle 70 ... End cap 73 ... Cover piece 74 ... Attachment 80 ... Kamoi 81 ... Naka Kamoi 82 ... Sill 90 ... Heat insulation auxiliary covering member

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 2E011 AA01 AB01 AC04 AD01 AD02 AD03 AE05 AF00 AG00 CA01 CB01 CC03 CC07 DA05 DB04 DC01 DD00

Claims (11)

[Claims] 1. A sash frame in which an upper frame, a lower frame, and left and right vertical frames in which a room portion of a metal frame is covered with a resin frame is rectangular, and a sash frame is laid between the left and right vertical frames of the sash frame. The upper opening and the lower opening are formed seamlessly, and the blinds cover a metal frame, an upper resin cover covering an upper surface indoor side portion of the metal frame, and a lower surface indoor side portion of the metal frame. A step window sash formed of a lower resin cover and a heat insulating cover member for covering an indoor side surface of a metal frame. 2. The indoor side portion of the blind metal frame forms an upper mounting portion and a lower mounting portion, and the heat insulating cover member is substantially U-shaped with a vertical plate, an upper mounting piece, and a lower mounting piece. The upper mounting piece overlaps with the upper mounting section, the upper resin cover overlaps with the upper mounting piece, and they are fixed with screws, and the lower mounting piece is mounted on the lower mounting section. The step window sash according to claim 1, wherein the lower resin cover is polymerized on the lower mounting piece, and the lower resin cover is fixed with screws. 3. The upper mounting piece and the lower mounting piece of the heat insulating cover member have rising portions, and the rising portions are respectively in contact with the indoor end of the upper resin cover and the indoor end of the lower resin cover. The heat insulating sash according to claim 2. 4. A lock receiving portion and a lock portion for locking each other are provided on the upper mounting portion and the lower mounting portion of the metal frame and on the upper mounting piece and the lower mounting piece of the heat insulating cover member, respectively. Window fenestration sash as described. 5. The heat-insulating covering member has a shape which is larger in size than the vertical frame, the heat-insulating covering member protrudes toward the indoor side from the vertical frame, and an end cap is attached to and detached from an end of the projecting portion of the heat-insulating covering member. The step window sash according to claim 1, which is freely mounted. 6. The step window sash according to claim 5, wherein the end cap has a cover piece for covering an end of the protruding portion of the heat insulating cover member. 7. The blind frame is larger in size than the vertical frame, and the heat-insulating cover member has a shape protruding more toward the indoor side than the vertical frame, and the resin frame of the vertical frame is attached to the inner surface of the sash mounting opening via the attachment. 2. The step window sash according to claim 1, wherein a protruding portion of the heat insulating cover member is longer than other portions and is in contact with an inner surface of the sash mounting opening. 8. A Kamoi gate is provided on the indoor side of the upper frame, a Nakagami gate is provided on a blind room side as a heat insulating cover member, and a threshold is provided on the indoor side of the lower frame. The step window sash according to claim 1, wherein the resin frame is made of wood and the vertical resin frame is a resin containing wood powder. 9. The step window sash according to claim 8, wherein a height-adjustable heat-insulating auxiliary covering member is attached to an upper part of said Naka-gamo-i. 10. A plurality of sashes are mounted on the upper opening so that the butt frames abut each other at an intermediate portion in the left-right direction when the sashes are closed. 2. A bundle is fixed over a metal frame of an upper frame and a seamless metal frame.
Step window sash as described. 11. The step window according to claim 1, wherein the metal frame of the lower frame is a heat insulating frame in which an outdoor member and an indoor member are connected by a heat insulating material, and the indoor member is covered with a resin frame. sash.