JP2000145304A - Composite sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate various kinds of problems arising from the difference in coefficient of thermal expansion between metal formed member and resin formed member in a composite sash. SOLUTION: This composite sash is so constituted that resin rails 10p of ventilator rails 10 and 10A are made slightly short in comparison with metal rails, both ends of each of the metal rails are closely contacted to both up and down ends of each of metal stiles 1 to connect, at the same time, spaces S for absorbing thermal expansion of the resin rails 10p of the rails 10 and 10A are formed between the resin rails 10p and metal stiles 1. A horizontal cover section 21 is provided, being mounted to both up and down ends of each of pull-bars formed in the metal rails of inside meeting rails to the cut-off end face thereof, and an extension section 2 3a for covering the space is provided to a vertical cover section of a resin pull-bar cap 20 having the vertical cover section 23 for covering the indoor exposed surfaces of the cut-off sections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a metal frame having a window frame,
The present invention relates to a composite sash including a metal frame and a resin frame disposed on the indoor side of the metal frame, and a shoji frame including a metal frame and a resin frame disposed on the indoor side of the metal frame.

[0002]

2. Description of the Related Art A composite sash of this kind includes a Japanese sho 63-
Japanese Patent Application Laid-Open No. 49481, JP-A-8-177316, and JP-A-8-177317 are known. This composite sash has the weather resistance and mechanical strength of a metal frame and a metal frame made of a shape material such as an aluminum alloy, and a heat insulating property of a resin frame and a resin frame made of a shape material such as vinyl chloride and acrylic. Since it has both design characteristics and can easily obtain a uniform color that matches the exterior and interior of the building, it has come to be used favorably not only in cold regions but also in non-cold regions.

[0003]

The expansion and shrinkage ratio (expansion and contraction ratio) of the metal profile and the resin profile due to heat is larger in the latter.
However, in the conventional composite sash, there were some problems because a sufficient measure was not taken for the difference in expansion and contraction ratio between the metal profile and the resin profile. The first problem is that the metal frame and the resin frame or the metal frame and the resin frame cannot be integrally joined in the longitudinal direction due to a difference in expansion / contraction ratio. Conventionally, in any of the window frame and the shoji frame, the metal frame and the metal frame are each assembled into a rectangular shape and joined with screws, and the resin frame in the horizontal frame of the window frame or the resin frame in the horizontal frame of the shoji is each formed of a metal frame or It was connected to the metal frame by slide fitting or by fastening with screws or the like. For this reason, in order to secure airtightness when the shoji is closed, when the pulling member for pulling the vertical frame of the shoji in the indoor direction is attached to the vertical stile, the pulling member contacts the resin frame and is provided on the resin frame. When a screw is screwed into the metal frame from the through hole, the attached state of the pulling member is likely to be quickly deteriorated due to expansion and contraction of the resin frame. Conventionally, a puller attached to the indoor side surface of a vertical sliding door frame is provided with a hole having the same shape and size as the recess of the puller on the indoor side surface of the metal frame and the indoor side surface of the resin frame, and the hole is provided with the puller The screw is inserted into the resin frame from the flanges at the upper and lower ends of the puller by fitting the recess, and it is screwed into the metal frame and attached.However, a large force is applied to the screw due to expansion and contraction of the resin frame, and it is fixed. The situation gets worse, and eventually the screws come loose and come off.

[0004] The second problem is that the gap formed in advance to absorb the expansion and contraction of the resin frame or the resin frame is significantly exposed on the indoor side, so that the internal appearance of the composite sash is impaired. . That is, in the window frame, by forming a gap between the longitudinal end portions of the resin frame of the horizontal frame and the side surfaces of the upper and lower ends of the resin frame of the vertical frame,
By forming a gap between both ends of the resin frame of the horizontal frame in the longitudinal direction and the resin frame of the vertical frame, the resin frame or the resin frame can be expanded and contracted, respectively. FIG. 16 is a partially omitted front view of a shoji in a conventional composite sash. The resin frames 10p of the horizontal frames 10 and 10A of the shoji D are slightly shorter than the metal frames 10m, and a vertical frame is provided between both longitudinal ends of the horizontal resin frame 10p and the metal frames of the vertical frame 1. Is formed. The expansion and contraction of the resin frame is absorbed by this gap. Reference numerals 20 and 20A denote pull bar caps attached to the cutouts at the upper and lower ends of the pull bar, and cover the indoor side surface of the metal frame exposed to the indoor side at the cut end face of the pull bar and the cutout.

As described above, in the conventional composite sash, the metal frame is connected in a rectangular shape, and the resin frame is slightly shorter than the metal frame. As shown in FIG. Since a vertical gap CL is formed between both ends of the frame 10p in the longitudinal direction and the pull bar cap, this gap is enlarged especially when the resin frame contracts, and the resin frame 1p, Since the metal frame 10m whose color is remarkably different from 10p is exposed on the indoor side, there is a problem that the inside of the shoji is significantly impaired.

An object of the present invention is to eliminate the above-mentioned various problems caused by the difference in the thermal expansion coefficient between a metal profile and a resin profile in a composite sash.

[0007]

In order to achieve the above-mentioned object, the present invention provides a window frame comprising a metal frame and a resin frame disposed on the indoor side of the metal frame. In a composite sash comprising a resin frame disposed on the indoor side of the metal frame, each resin frame of the horizontal frame of the shoji is slightly shorter than the metal frame, and both ends of the metal frame of the horizontal frame are vertically framed. In addition to the upper and lower ends of the metal frame, it is bonded to the upper and lower ends of the metal frame, and a gap is formed between the resin frame of the horizontal frame and the metal frame of the vertical frame to absorb the thermal expansion of the resin frame of the horizontal frame. A horizontal cover portion is attached to the upper and lower ends of the pull bar formed on the metal frame of the frame, and covers the cut end surfaces of the upper and lower cut portions of the pull bar, and a vertical cover portion that covers the indoor exposed surface of the cut portion. An extension for concealing the gap is provided in the vertical cover of the resin pull bar cap. It is characterized in that. With the above configuration, the cut cover end face is covered by the horizontal cover portion of the pull bar cap, the indoor exposed surface of the cut portion is covered by the vertical cover portion, and the resin frame of the horizontal frame and the vertical frame are covered by the extension portion. The gap between the metal frame is hidden.

The horizontal cover portion of the pull bar cap extends from the longitudinal end surface of the metal frame forming the pull bar to a position beyond the longitudinal end portion of the resin frame forming the pull bar. It is desirable to have an extension that covers the indoor side surface at the longitudinal end of the resin frame.
With the above configuration, the end of the resin frame facing the cut end face of the cutout portion of the pull bar is concealed by the extension, so that the end of the metal frame is exposed at the upper and lower ends of the pull bar as the resin frame expands and contracts. Is prevented.

[0009] A cut-and-raised piece is formed on the inner wall of the pull bar of the metal frame near the longitudinal end of the hollow portion so as to protrude at an angle in the longitudinal center direction of the metal frame. It is desirable to provide a locking projection having elasticity on the outdoor side surface of the insertion portion inserted into the portion.
According to the above configuration, the pull bar cap is fixed to the pull bar simply by pushing the insertion portion into the hollow portion at the end of the pull bar.

Further, the present invention provides a window frame comprising a metal frame and a resin frame disposed on the indoor side of the metal frame, wherein the shoji frame is a metal frame and a resin frame disposed on the indoor side of the metal frame. In a composite sash consisting of a frame, the resin frame of the vertical frame of the shoji is made slightly shorter than the metal frame, and is attached to the upper end of the vertical stile, and is fitted to the upper rail of the window frame to swing the upper portion of the shoji. A cover portion is formed at the upper end on both sides of the steady rest to prevent the edge of the metal frame of the vertical frame, and the resin frame is formed on the cover at a position corresponding to the edge of the resin frame of the vertical frame. It is characterized in that a notch is provided to allow expansion and contraction. According to the above configuration, even if a cover for covering the edge of the metal frame is provided on the steady rest attached to the upper end portion of the vertical frame to prevent injury, the cutout is provided in the cover, so that the resin frame is not cut. The expansion and contraction is not hindered. Therefore, the mounting state of the steady rest is not impaired by the expansion force of the resin frame.

[0011] Further, according to the present invention, the vertical frame of the sliding shoji comprises a metal frame and a resin frame disposed on the indoor side of the metal frame, and a window closure is provided at an intermediate portion in the height direction of the vertical frame. Sometimes in a composite sash in which a pulling member is attached to the vertical frame of the window frame to abut against a convex edge formed on the vertical frame to draw the vertical frame in the indoor direction. The two frames are joined in a state where the webs are overlapped with each other, and the web of the resin frame is provided with a through hole capable of fitting the bottom of the pulling member, and the pulling member fitted into the through hole is provided with the pulling member. The present invention is characterized in that the through hole is fixed to a web of a metal frame, and the through hole is formed to be larger than the bottom of the pulling member so as to allow expansion and contraction of the resin frame. With the above configuration,
The bottom of the pulling member is firmly fixed to the metal frame, and the bottom of the pulling member enters a slightly larger hole in the resin frame, so the mounting state of the pulling member is determined by the elasticity of the resin frame. It does not get worse.

Further, the window frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame, and the shoji frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame. In the composite sash, a hole is formed in the height direction intermediate portion of the resin frame of the vertical frame of the shoji, the bottom of the recess of the puller is fitted into the hole, and the back of the upper and lower ends of the flange around the recess is formed. A screw is screwed into the formed screw receiving portion from the back side of the resin frame, the puller is connected to the resin frame, and the resin frame is connected to the metal frame. According to the above configuration, since the pull is fixed to the resin frame, the mounting state is not affected by the expansion and contraction of the resin frame, unlike the case where the pull is screwed to the metal frame. Further, since the set screw of the pull is not exposed to the outer surface of the pull, the appearance of the pull is improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the illustrated embodiment. FIG. 1 is a perspective view showing a connecting portion between the inner frame and the upper frame of a shoji and a pull bar cap, FIG. 2 is a vertical sectional view of the upper frame, and FIG. 3 is a mounting structure of the pull bar cap to the inner frame. FIG. 4 is a front view of a main part of a shoji showing a state where a pull bar cap is attached to a pull bar.

In FIG. 1, reference numeral 1 denotes an inner frame of a sliding door, which is a metal frame 1m having excellent weather resistance and mechanical strength, such as aluminum alloy, and vinyl chloride or vinyl chloride disposed on the indoor side of the metal frame. It is composed of a resin frame 1p which is excellent in heat insulation properties such as acrylic and design. And 1m metal frame
Has two hollow portions 3 and 4 separated into an outdoor side and an indoor side by a web 2 formed substantially at the center in the expected width direction. The resin frame 1p is formed to have a substantially L-shaped cross section so as to cover the side of the door end and the indoor side of the metal frame 1m. A plurality of ribs 6 projecting in the indoor direction are formed on the indoor side surface of the metal frame 1m to form a heat insulating air layer 5 between the metal frame 1m and the indoor side surface of the resin frame 1p.

At the end of the resin frame 1p on the outdoor side, there is a metal frame 1m.
A fin-shaped tight material 7 slightly protruding from the outdoor side surface to the outdoor direction is integrally formed. This tight material 7
When the sliding sliding door is closed, as shown in FIG. 7, it elastically contacts the indoor side surface of the outer mixing frame 1A to secure airtightness between the inner and outer mixing frames 1 and 1A. It is for doing.

The portion of the metal frame 1m closer to the indoor side than the web 2 and the indoor portion of the resin frame 1p that covers the web 2 constitute a pull bar that can be used for opening and closing the sliding door of the inner frame. The metal frame 1m has, at the upper end thereof, a rail fitting groove 8 formed by cutting out so as to cross the center of the outdoor side hollow portion 3, and a sash is built into the window frame to make the rail fitting groove. 8 so that it does not get in the way when fitting the upper rail of the window frame.
The upper end of the pull bar is cut 9 over the entire hollow part 4 on the indoor side.

Although not shown, a rail fitting groove for fitting the lower rail of the window frame is also provided at the lower end of the inner assembling frame 1, and the lower end of the inner mating frame 1 is provided with the cutout 9 at the upper end. A similar resection is provided.

The metal frame 1m and the resin frame 1p are aligned in the longitudinal direction at the outdoor end and the indoor end with the fitting portion and the fitted portion, and slide in the longitudinal direction. By firmly fitting, they are firmly connected. As illustrated in FIG. 2, the upper frame 10 of the sliding door is made up of a metal frame 10m and a resin frame 10p that covers a portion of the metal frame exposed to the indoor side, like the combination frame 1. . Metal frame 1
0 m has a hollow portion in the middle part in the height direction to provide the required strength, and the upper web 11 has a screw hole 12
have. The resin frame 10p has a web 13 at a middle portion in the height direction and is formed in a substantially T-shape. The web 13 is superimposed on the web 11 of the metal frame 10m. Is screwed to connect the metal frame 10m and the resin frame 10p.
Preferably, the fitting portion 15 and the fitted portion 16, which are formed continuously in the longitudinal direction below the metal frame and the resin frame, are aligned with each other, and the frames 10m and 10p are fitted by sliding in the longitudinal direction. The screw 14 is screwed into the overlapped portion of the web to be firmly connected. Reference numeral 17 denotes a reinforcing metal fitting attached to the middle portion of the upper frame in the longitudinal direction using the screw 14.

The inner frame 1 and the upper frame 10 are
As in the case of the conventional shoji frame, the end of the upper frame is abutted against the side of the upper end of the mating frame, and a screw is passed through the through hole 18 formed below the rail fitting groove in the mating frame. Then, it is connected by screwing it into the screw hole 12 of the upper frame.
The connection between the combination frame 1 and the lower frame 10A (see FIG. 4) and the connection between the upper frame 10, the lower frame 10A and the vertical frame (not shown) are performed in the same manner.

The resin frame 10p of the upper frame 10 and the resin frame of the lower frame 10A are shorter than the metal frame 10m of the upper frame 10 and the metal frame of the lower frame 10A, respectively, and are connected to the center of the metal frame. Have been. Then, in a state in which the upper frame 10 and the lower frame have been joined to the summing frame 1 and the vertical frame by screws, as shown in FIGS. A gap S for absorbing expansion and contraction of the resin frame 10p is formed between the side of the metal frame 1m of the joint frame 1 and the side of the metal frame of the vertical frame.

In FIG. 1, reference numeral 20 denotes a pull bar cap formed of a resin material and mounted on the upper end of the pull bar. The pull bar cap 20 has a horizontal cover portion 21 covering the cut end surface of the upper end portion of the metal frame 1 m, an insertion portion 22 inserted into the hollow portion of the pull bar, and a slight inclination from the outdoor end of the horizontal cover portion to the outdoor side. And extend vertically
It has a vertical cover portion 23 that covers the indoor side surface of the pull bar cutout portion, that is, the indoor side surface of the web 2 integrally. As shown in FIG. 3, a locking hole 22 a is formed on one side surface of the insertion portion 22, and an inner wall facing the hollow portion of the pull bar, in the illustrated example, the web 2 is formed in the height center direction of the hollow portion 4 in the illustrated example. A projecting locking projection 2a is formed, and the insertion portion 2
2 is pushed into the hollow portion 4 from the upper end of the pull bar, and when reaching the predetermined mounting position, the locking projection 2a elastically fits into the locking hole 22a of the insertion portion, and thereafter is fixed irremovably. Is to be done. At the same time, the horizontal cover 2
Numeral 1 covers the cut end surface of the upper end of the pull bar, and the vertical cover portion 23 closely covers the indoor side surface of the metal frame 1m exposed at the cutout portion.

The peripheral edge of the horizontal cover portion 21 extends slightly further in the indoor direction from the cut end surface of the resin frame of the pull bar cutout portion, and extends vertically along the indoor side surface of the resin frame from the extended end portion. An extension 21a is formed. With this, when the pull bar cap 20 is attached, the upper end of the resin frame of the pull bar is concealed by the vertical extension portion 21a. The upper end of the metal frame of a different color is not exposed. The vertical cover 23 extends from the web 2 of the metal frame 1m in the direction of the upper frame so that the gap between the metal frame 1m and the longitudinal end of the resin frame of the upper frame can be concealed. The horizontal extension 23a is provided integrally. As shown in FIG. 4, a lower pull bar cap 20A similar to the upper pull bar cap 20 is also attached to the lower end of the pull bar. Thereby, since both pull bar caps seal the upper and lower edges of the pull bar, heat transfer from the end surface of the metal frame is eliminated. At the same time, the heat insulation layer between the metal frame and the resin frame is also sealed, so that there is no movement of air in this heat insulation layer, so that heat insulation is ensured. Further, since the fore-edge of the cut portion is covered, the effect of improving safety and aesthetic appearance and protecting the end of the resin frame can be obtained. Furthermore, the vertical cover part 23 of the pull bar cap is free (movable) with respect to the frame.
Therefore, the difference in expansion and contraction ratio between the resin frame and the metal frame of the vertical frame is absorbed. As described above, by attaching the pull bar cap, gaps S that impair the inside view are exposed at the four corners of the shoji of the composite sash based on the difference in the expansion rate between the resin frame and the metal frame. No longer reveals metal frames of different colors.

FIG. 5 is a perspective view of a swing stopper attached to the upper end of the vertical frame to prevent the upper part of the shoji from swaying indoors and outdoors due to wind pressure during opening and closing movement of the shoji or during closing. is there. Such a steady rest is attached to each of the upper and lower ends of the assembling frame and the vertical frame of the inside and outside shoji. The thing attached to the upper end part of a mat frame will be described with reference to FIGS. FIG. 6 is a perspective view showing the inner mating frame to which the steady rest 24 of FIG. 5 is attached, and FIG. 7 is a plan view of the inner and outer mating frames to which the steady rest is attached.

The anti-sway device 24 is provided in the hollow portion 3 of the assembling frame 1.
A locking projection 25 formed on one of the inner peripheral walls of the hollow portion 3 has a locking projection 25 which is inserted and attached to the end of 26
(Refer to FIG. 3).
In the fixed state, it has a rail fitting groove 27 that communicates with the rail fitting groove 8 of the mating frame, and a through hole 28 that communicates with the screw through hole 18 of the mating frame. And cover portions 29a and 29b for covering the cut end surface of the upper end portion of the metal frame of the combination frame to prevent injury.

A tight material 7 is provided at the outdoor end of the resin frame 1p. In order to prevent the tightness of the tight material from deteriorating, the tight material 7 is attached to the indoor side wall 30 of the outer frame 1A. It is desired that the resin frame 1p is extended to the same height as the upper end, that is, the portion of the resin frame 1p on the outdoor side of the rail fitting groove 8 is present at the same height as the upper end surface of the metal frame 1m. However, in this case, since the elongation of the resin frame 1p including the tight material 7 is particularly suppressed, the tight material 7 or the cover portion 29b may be deformed, thereby impairing the airtightness or hindering the smooth opening and closing of the shoji. There is. Therefore, in the present invention, the cover portion 29b on the outdoor side of the steady rest is cut out so as to have a shape corresponding to the upper end portion on the outdoor side relative to the rail fitting groove 8 of the resin frame 1p to allow the resin frame to expand and contract. A notch 29c is provided. Thereby, even if the tight material is provided integrally with the resin frame, the airtightness of the tight material is not impaired due to the expansion and contraction of the resin frame.
In addition, the opening and closing movement of the shoji can be smoothly performed without being affected by the expansion and contraction of the resin frame. Preferably, a reinforcing metal member 31 formed by bending a strip-shaped metal plate into a J or U shape is attached to the steady rest 24 so as to surround the rail fitting groove 27. The reinforcing metal member 31 provides a supporting strength capable of withstanding a strong wind pressure to the shoji when closed.

FIG. 8 is a view showing a section of a vertical frame of the inner shoji Di. The vertical frame 32 is also composed of a metal frame 32m and a resin frame 32p arranged on the indoor side of the metal frame. The metal frame 32m has a hollow portion h at substantially the center in order to have a required strength. Then, the door-side web 33 forming the hollow portion and the web 34 of the resin frame 32p are overlapped, and the overlapped portion is connected with the screw 35, and the fitting portions formed at two places on the left and right sides. It is connected by the slide fit of the fitted portion.

Reference numeral 37 in FIG. 8 denotes a pulling member for applying a pulling force from the vertical frame 34 to the vertical frame 32 in the indoor direction when the shoji is closed. As shown in FIG. 9, the pulling member 37 is made of resin and has a guide surface 37a on the outdoor side, a fixed surface 37b on the indoor side, and an anchor-shaped protrusion 37c protruding on the back side. I have. As shown in FIG. 10, the pulling member 37 is attached to the overlapping portion of the doorside web 33 and the web 34 of the resin frame 32p at a plurality of positions in the height direction of the vertical frame 32. In order to avoid the influence of expansion and contraction, a web 35 of the resin frame is formed with a hole 35a slightly longer than the back surface 37d which is in contact with the web 33 of the metal frame of the pulling member. Then, the pulling member is positioned at the center of the hole and abuts against the web 33 of the metal frame,
The projection 37c is pressed into and fixed to a locking hole formed in the web 33 in advance by using material elasticity. 37e
Is a flange extending in the up-down direction of the pulling member, and is provided for concealing a gap of the long hole 35a. However, the purpose of the concealment is as shown in FIG.
This can also be achieved by reducing the area of the back surface 37d that contacts the metal frame of the pulling member.

The reaction force applied to the pulling member 37 from the protruding edge 38 of the vertical frame J at the time of closing the shoji is considerably large, and when the shoji is drawn indoors, the door end side end 39 of the resin frame 32p vigorously. It is pushed by the indoor side wall 40 of the vertical frame J. Ridge 38
In order to receive the reaction force from only the protrusion 37c connected to the metal frame, there is a concern about the strength of the protrusion. Therefore, in a preferred embodiment, a portion of the resin frame 32p from the indoor side of the hollow portion 32h of the metal frame 32m to the door end side end portion 39 pressed by the indoor side wall 40 of the vertical frame has a hollow portion. As a structure, its strength is increased. Thereby, the rim 3
Since the force applied to the pulling member from 8 is distributed and burdened on the web 34 of the metal frame and the door end 39 of the resin frame, the mounting strength of the pulling member does not decrease.

To the vertical frame 32, pullers 41 and 42 for holding hands for opening and closing the shoji on the outdoor side or the indoor side are attached. The outer pull 41 has a hole in the outdoor side surface of the hollow portion 32h provided at the center in order to provide the metal frame 32m with a required strength, and a concave portion of the outer pull 41 is formed in the hole from the outdoor side of the metal frame. It is fitted by screwing a screw into a metal frame above and below the collar around the outer puller. On the other hand, when attaching the inner puller 42, the recess of the puller is fitted into the hole provided in the resin frame 32p, and the screw penetrating the flange of the inner puller is screwed into the metal frame. There is a possibility that the fixed state of the screw may be deteriorated in a long term due to expansion and contraction of the resin frame.

In the present invention, in order to avoid this, it is attached to the resin frame 32p as follows. That is, as shown in FIGS. 12 and 13, holes 43 slightly larger than the bottom of the concave portion 42 a of the inner puller 42 are formed in the double structure portion of the resin frame, and both upper and lower sides of the fitting hole are formed. A screw through-hole 44 corresponding to the screw receiver 42c provided on the upper and lower back surfaces of the flange 42b around the puller is formed. Then, the recess 42 a of the pull 42 is inserted into the resin frame 32.
The puller is loosely inserted into the hole 43 from the indoor side of p, the screw receiver 42c is matched with the screw through hole 44, and the screw is screwed into the screw receiver 42c from the back of the resin frame, whereby the puller is fixed to the resin frame.

As described above, since the pull is attached to the double structure portion of the resin frame 32p, a reliable attachment strength can be obtained. Also, since it is not screwed to the metal frame, it is not affected by the difference in expansion rate between the metal frame and the resin frame. Further, since the screws are not exposed on the indoor side surface of the resin frame, the appearance of the puller mounting portion is improved.

[0032]

As described above, according to the present invention, various problems based on the difference in the expansion and contraction ratio between the metal frame and the resin frame of the shoji of the composite sash can be solved. That is, the gap between the resin frame of the horizontal frame and the metal frame of the vertical frame is concealed by the extension provided on the horizontal cover portion of the pull bar cap,
Part of the metal frame is not exposed between the resin frames on the inner side of the shoji regardless of the expansion ratio of the resin frame. Therefore, the introspection is improved as compared with the conventional composite sash.

When an extension is provided at the end of the horizontal cover of the pull bar cap to cover the indoor side surface of the longitudinal end of the resin frame of the inner garage frame, the extension and contraction of the resin frame of the inner garage frame can be achieved. As a result, the ends of the metal frame are prevented from being exposed at the upper and lower ends of the pull bar.

In addition, a cut-and-raised piece is formed on the inner wall of the hollow portion of the pull bar of the metal frame, and the cut-and-raised piece is inclined and protrudes in the longitudinal center direction of the hollow portion, and the pull bar cap is inserted into the hollow portion. When an elastic locking projection is provided on the outdoor side surface of the pull bar, the pull bar cap is easily fixed to the pull bar simply by pushing the insertion portion into the hollow portion at the end of the pull bar.

Further, a cover portion is formed at the upper end portion on both sides of the steady rest attached to the upper end portion of the vertical frame to cover the edge of the metal frame of the vertical frame, and the cover portion is formed of the resin frame of the vertical frame. Since the notch which allows expansion and contraction of the resin frame is provided at a position corresponding to the edge end face, expansion and contraction of the resin frame is not hindered.
Therefore, since the mounting state of the steady rest is not impaired by the expansion force of the resin frame, when the tight material is integrally provided in the resin frame, the tightness of the tight material is increased as the resin frame expands and contracts. There is no loss.

Further, a through hole is provided for fitting the bottom of the pulling member to the resin frame web of the vertical frame, and the pull member fitted to the through hole is fixed to the metal frame web. Since the through hole is formed to be larger than the bottom of the pulling member so as to allow expansion and contraction of the resin frame, the pulling member is firmly fixed to the metal frame, and moreover, the mounting state of the pulling member is reduced. There is no deterioration due to the elasticity of the resin frame.

Further, a hole is formed in the middle portion in the height direction of the resin frame of the vertical frame of the shoji, the bottom of the puller is loosely inserted into the hole, and the screw receiver formed on the back surface of the upper and lower ends of the surrounding flange. Because the screw is screwed into the part from the back side of the resin frame and the puller is connected to the resin frame, unlike the case where the puller is screwed to the metal frame, the mounting state is affected by the expansion and contraction of the resin frame. I will not receive it. Further, since the set screw of the pull is not exposed to the outer surface of the pull, the appearance of the pull is improved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view showing a connecting portion between an inner frame of a shoji and an upper frame and a pull bar cap.

FIG. 2 is a vertical sectional view of an upper frame of a shoji.

FIG. 3 is a cross-sectional view of a main part for explaining a mounting structure of a pull bar cap to an inner combination frame.

FIG. 4 is a front view of a main part of the shoji with the pull bar cap attached to the pull bar.

FIG. 5 is a perspective view of the steady rest.

FIG. 6 is a perspective view showing an inner mating frame to which the steady rest of FIG. 5 is attached.

FIG. 7 is a plan view of inner and outer mating frames to which the steady rest is attached.

FIG. 8 is a sectional view mainly showing a vertical frame of a shoji.

FIG. 9 is a diagram illustrating a structure of a pulling member.

FIG. 10 is a cross-sectional view of a main part showing a structure for attaching a pulling member.

FIG. 11 is a similar cross-sectional view showing an attachment structure of another example of the pulling member.

12A and 12B are diagrams illustrating the structure of the puller, wherein FIG. 12A is a front view, FIG. 12B is a rear view, FIG. 12C is a right side view, and FIG. 12D is a cross-sectional view taken along line XX of FIG. FIG.

FIG. 13 is a partial front view of the resin frame showing a processing state of the resin frame for attaching the pull handle.

FIG. 14 is a cross-sectional view of the resin frame showing a state where the puller is attached.

FIG. 15 is a sectional view taken along line YY of FIG. 14;

FIG. 16 is a partially omitted front view of a shoji in a conventional composite sash.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inner frame 1m Metal frame 1p Resin frame 2 Web 3,4 Hollow part 7 Tight material 8 Rail fitting groove 9 Pull bar cutout 10 Upper frame 10A Lower frame 10m Metal frame 10p Resin frame 20,20A Pull bar cap 21 Horizontal cover part 21a Extension part 22 Insertion part 23 Vertical cover part 23a Extension part 24 Sway stopper 29a, 29b Cover part 29c Notch part 32 Vertical frame 32m Metal frame 32p Resin frame 34 Metal frame web 35 Resin frame web 35a Fitting Groove 36 Screw 37 Pulling member 37a Guide surface 38 Edge of vertical frame 39 Door end side of resin frame 40 Indoor side wall of vertical frame 41 External puller 42 Internal puller 42a Recess 42b Flange 42c Screw receiving portion 43 Fitting Hole 44 Screw through hole

Continuing on the front page (72) Inventor Akira Kanasaka 2-7-23 Kiba, Koto-ku, Tokyo Inside Nippon Nikkei Co., Ltd. Inventor Noriyuki Yamamoto 2-7-23 Kiba, Koto-ku, Tokyo

Claims (6)

[Claims] 1. A heat insulating composite sash in which a heat insulating shoji is erected on a window frame formed by connecting a metal frame and a resin frame disposed on the indoor side of the metal frame. Is slightly shorter than the metal frame, and both ends of the metal frame of the horizontal frame are closely attached to the upper and lower ends of the metal frame of the vertical frame, and each end of the resin frame of the horizontal frame and the vertical frame are joined together. A gap is formed between the metal frame and the resin frame of the horizontal frame to absorb the thermal expansion, and it is attached to the upper and lower ends of the pull bar formed on the metal frame of the inner combination frame. A horizontal extension portion for concealing the gap is provided in the vertical cover portion of the resin pull bar cap having a horizontal cover portion covering the cut end surface of the cut portion and a vertical cover portion covering the indoor exposed surface of the cut portion. Features a composite sash. 2. The window frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame. The shoji frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame. In the composite sash, the horizontal cover portion of the pull bar cap extends from the longitudinal end surface of the metal frame forming the pull bar to a position beyond the longitudinal end portion of the resin frame forming the pull bar, and the end of the horizontal cover portion is formed. A composite sash having a vertical extension that covers an indoor side surface at a longitudinal end of the resin frame. 3. The pull bar of the metal frame has a cut-and-raised piece formed on the inner wall near the longitudinal end of the hollow in the longitudinal direction of the metal frame and protruding from the hollow of the pull bar cap. On the outer surface of the insertion part to be inserted into the part,
An elastic locking protrusion is provided, and when the insertion portion is pushed in, the locking protrusion is locked by elastic return when the cut-and-raised piece is passed over, and the pull bar cap is fixed to the pull bar. The composite sash according to claim 1, wherein 4. The window frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame, and the shoji frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame. In the composite sash, the upper ends of both sides of the steady rest attached to the upper end of the vertical frame and fitted to the upper rail of the window frame to prevent the upper part of the sash from shaking, and cover the front end of the metal frame of the vertical frame. A composite sash wherein a cover portion is formed, and a cutout is provided in the cover portion at a position corresponding to the edge end of the resin frame of the vertical frame to allow the resin frame to expand and contract. 5. A vertical frame of a sliding shoji comprises a metal frame and a resin frame arranged on the indoor side of the metal frame, and a middle portion of the vertical frame in a height direction of the window frame when the window is closed. In a composite sash in which a pulling member that abuts on a convex edge formed in a vertical frame and pulls the vertical frame toward an indoor direction is attached, the web of the resin frame is overlapped with the door-side web of the metal frame. Both frames are joined together in a state where they are joined, and a web of the resin frame is provided with a through-hole capable of fitting the bottom of the pulling member, and the pulling member fitted into the through-hole is provided with the metal frame. The pulling member mounting structure, wherein the through hole is fixed to a web, and the through hole is formed to be larger than a bottom portion of the pulling member so as to allow expansion and contraction of the resin frame. 6. The window frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame, and the shoji frame comprises a metal frame and a resin frame disposed on the indoor side of the metal frame. In the composite sash, a hole is formed in the height direction intermediate portion of the resin frame of the vertical frame of the shoji, the bottom of the recess of the puller is fitted into the hole, and the back of the upper and lower ends of the flange around the recess is formed. A composite sash, wherein a screw is screwed into the formed screw receiving portion from the back side of the resin frame, the puller is coupled to the resin frame, and the resin frame is coupled to the metal frame.