JP3507031B2 - Lower frame of composite sash - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention improves the heat insulation by preventing the dew condensation by covering the indoor exposed portion of the metal frame mounted in the building opening with a resin frame. Regarding the lower frame of the composite sash designed to eliminate the visual coldness of.

[0002]

2. Description of the Related Art In recent years, a composite type composite sash window frame having a resin frame on its exposed portion on the indoor side is being used for a window frame made of a metal frame such as an aluminum sash. This is to improve the heat insulation of the sash window by covering the indoor side of the metal frame with a resin whose thermal conductivity is extremely lower than that of metal, and to prevent dew condensation on the indoor side. It is intended to improve the design by eliminating the coldness and providing the interior decoration with the unity. Such a composite type composite sash window frame is installed in the window opening in a state where the resin frame is attached to the metal frame and the window frame is completed.

[0003]

However, in the conventional composite type composite sash window frame, even if the resin frame is attached to the indoor exposed portion of the window frame made of a metal frame such as an aluminum sash, it is originally It was difficult to completely achieve the purpose of. That is, even if a resin frame is attached to the aluminum lower frame, part of the aluminum lower frame covered with the resin frame may transfer heat to the decorative frame of the window opening. , Etc., the resin frame cannot be attached to the entire surface because of the complicated structure, and therefore,
The original purpose of the composite type window frame was to improve the heat insulating property to prevent dew condensation, and the effect of eliminating the visual coldness of the metal frame was insufficient.

On the other hand, the resin frame is more vulnerable to aged deterioration and external shock than the metal frame such as aluminum, and may be discolored or damaged, and it may be necessary to replace it. In addition, when the interior decoration is changed so that the resin frame is integrated with the interior decoration, it may be necessary to replace the resin frame with the interior decoration at the same time. However, conventionally, even when the resin frame is replaced, the entire window frame including the metal frame needs to be removed from the window opening, and there is a problem that workability is extremely poor.

The present invention has been made in view of the above-mentioned conventional problems, and as a composite type window frame, the heat insulating property is improved to sufficiently prevent dew condensation, and the visual coolness of the metal frame is reduced. It is intended to provide a lower frame of a composite sash that can be eliminated to exert a sufficient design effect. Further, it is an object of the present invention to enable replacement of only the resin lower frame with the window frame still installed in the window opening, thereby improving the maintainability of the composite sash window.

[0006]

In order to achieve the above object, the present invention according to claim 1 is provided with an aluminum frame mounted on a window opening and a resin frame for covering an exposed portion on the indoor side of the aluminum frame. In the composite sash, the resin lower frame attached to the indoor side inner peripheral portion of the aluminum lower frame attached to the window opening is composed of a resin main frame and a resin auxiliary frame, and the resin main frame is provided on the surface of the aluminum lower frame. The resin auxiliary frame is attached to the indoor surface of the aluminum lower frame, and the indoor surfaces of the resin main frame and the resin auxiliary frame are in direct contact with the decorative frame of the window opening.

According to a second aspect of the present invention, there is provided a composite sash equipped with an aluminum frame fitted to the window opening and a resin frame covering an exposed portion on the indoor side of the aluminum frame, the composite sash being fitted to the window opening. The resin lower frame to be attached to the inner side of the aluminum lower frame on the indoor side is composed of a resin main frame and a resin auxiliary frame, and the resin main frame is composed of a lower inner rail of the aluminum lower frame and a rising piece provided on the indoor side. The frame main body is housed in the formed groove and the inverted L-shaped angle piece provided along the rising piece and is attached to the surface portion of the aluminum lower frame, and the resin auxiliary frame is made of aluminum. It is configured to be attached to the indoor surface portion of the rising piece of the lower frame, and the angle piece of the resin main frame and the indoor surface of the resin auxiliary frame are in direct contact with the decorative frame of the window opening, respectively.

According to a third aspect of the present invention, there is provided a composite sash equipped with an aluminum frame fitted to the window opening and a resin frame covering the indoor exposed portion of the aluminum frame, the composite sash being fitted to the window opening. The resin lower frame to be attached to the inner side of the aluminum lower frame on the indoor side is composed of a resin main frame and a resin auxiliary frame, and the resin main frame is composed of a lower inner rail of the aluminum lower frame and a rising piece provided on the indoor side. The frame main body that is housed in the formed concave groove, the standing piece that is in close contact with the inner surface of the lower inner rail, and the inverted L-shaped angle piece that is provided along the rising piece The resin auxiliary frame, which is attached to the surface part, is composed of a frame body that is housed in a groove formed in the lower surface of the rising piece of the aluminum lower frame, and a standing piece that is in close contact with the inner surface of the rising piece. And attached to the inner surface of the aluminum bottom frame, Serial angle piece and an indoor side surface of the resin the auxiliary frame of the resin present frame is characterized by being interviewed directly decorative frame of each window opening.

Further, the present invention according to claim 4 is based on claim 1
In the present invention described in Item 3, each of the resin main frame and the resin auxiliary frame forming the resin lower frame is attached to the aluminum lower frame by a locking means.

According to a fifth aspect of the present invention, there is provided a composite sash having an aluminum frame fitted to the window opening and a resin frame covering the exposed portion of the aluminum frame on the indoor side, the composite sash being fitted to the window opening. The resin lower frame attached to the inner peripheral side of the aluminum lower frame is composed of a resin main frame, a resin auxiliary frame, and a resin cover frame,
The resin main frame includes a frame body housed in a groove formed by a lower inner rail of an aluminum lower frame and a rising piece provided on the indoor side, and an inverted L-shaped angle piece provided along the rising piece. And the resin auxiliary frame is configured to be attached to the indoor side of the rising piece of the aluminum lower frame,
The resin cover frame is configured to be mounted on the indoor side of the shoji screen between the lower outer rail and the lower inner rail, and each of the resin main frame, the resin auxiliary frame, and the resin cover frame that form the resin lower frame is It is characterized in that it is attached to the aluminum lower frame by locking means.

According to a sixth aspect of the present invention, in the present invention according to the fifth aspect, the angle piece of the resin main frame and the indoor side surface of the resin auxiliary frame are in direct contact with the decorative frame of the window opening. It is characterized by

According to a seventh aspect of the present invention, in the present invention according to the fifth aspect, each of the resin main frame, the resin auxiliary frame, and the resin cover frame, which constitute the resin lower frame, is made of aluminum by a locking means. It is characterized by being attached to the frame.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a cross-sectional view of the sliding window using the composite window frame of the present invention as seen from the indoor side, FIG. 2 is a vertical cross-sectional view thereof, and FIG. 3 is a cross-sectional view corresponding to FIG. 4, FIG. 4 is a longitudinal sectional view corresponding to FIG. 2 in a state where the window shoji is removed, FIG. 5 is an enlarged view of a main part of FIG. 4, and FIG. 6 is an exploded view of FIG. In each of these drawings, the composite sash window according to the present invention is configured such that a pair of window shovels 10 are freely retractable in a window frame 1 which is attached to a window opening A and which is composed of upper and lower frames and left and right vertical frames. It is a thing.

Each frame member constituting the window frame 1 is a composite type frame member, and is composed of an aluminum frame 2 serving as a base and a resin frame 3 covering the indoor exposed portion thereof. That is, the aluminum frame 2 is configured by framing the aluminum upper frame 21, the aluminum lower frame 22, and the aluminum vertical frames 23 and 24 in a rectangular shape.
Is a resin upper frame 31, a resin lower frame 32, and resin vertical frames 33, 34.
It is composed of a square frame. The resin upper frame 31 is attached to the aluminum upper frame 21, the resin lower frame 32 is attached to the aluminum lower frame 22, the resin vertical frame 33 is attached to the aluminum vertical frame 23, and the resin vertical frame 34 is attached to the aluminum vertical frame 24. ing. A specific mounting method will be described later. The aluminum frame 2 is molded from an extruded aluminum material, and the resin frame 3 is molded from vinyl chloride or acrylic resin. Further, it is possible to mix wood powder or the like into these resin materials to give an appearance as if they were made of wood.

On the other hand, each window shoji 10 has a multi-layered glass 12 in a frame body 11 which is formed by assembling the upper and lower and left and right frame members into a square frame.
Be paid. 4 is a screen door. Like the window frame 1, each of the frame members constituting the frame body 11 is also composed of an aluminum frame 13 and a resin frame 14 attached so as to cover the exposed portion on the indoor side. That is, the resin upper frame 14a is on the aluminum upper frame 13a, and the resin lower frame 14b is on the aluminum lower frame 13b.
The resin vertical frame 14c is attached to the aluminum vertical frame 13c, and the resin vertical frame 1c
4d are attached to the aluminum vertical frame 13d, respectively.

As shown in FIGS. 2 and 4, the aluminum lower frame 22 has its inner peripheral surface formed in a stepped shape. From the surface, the lower outer rail 22a on the outdoor side and the lower inner rail on the indoor side are formed. The rail 22b is formed to project. In addition, a rising piece 22c standing substantially vertically is formed at the indoor end of the aluminum lower frame 22. And for this aluminum lower frame 22, 3
A resin lower frame 32 made up of individual resin frames is attached. That is, the resin lower frame 32 is the resin main frame 4 which is the first resin frame between the lower inner rail 22b on the indoor side and the rising piece 22c.
1, a resin auxiliary frame 42 which is a second resin frame on the indoor side of the rising piece 22c, and a resin cover which is a third resin frame between the lower outer rail 22a on the outdoor side and the lower inner rail 22b on the indoor side. Each of the frames 43 is attached and installed so as to cover almost the entire inner peripheral surface of the aluminum lower frame 22 on the indoor side from the lower outer rail 22a on the outdoor side. The resin cover frame 43, which is the third resin frame, may be selectively attached in the present invention, if necessary.

As is apparent from FIG. 4, the resin main frame 41, which is the first resin frame, includes the lower inner rail 22b and the rising piece 22.
frame body 41 housed in a groove formed by c and
a and a standing piece 41 that is in close contact with the inner surface of the lower inner rail 22b.
b, and an inverted L-shaped angle piece 41c provided along the rising piece 22c. The frame main body 41a is provided with a hanging piece on the indoor side of the hollow portion, and the engaging portion at the lower end thereof is engaged with the protrusion 22g provided on the rising piece 22c of the aluminum lower frame 22, and the standing piece 41b is attached. The inner surface of the lower inner rail 22b is brought into contact with the inner surface of the lower inner rail 22b so that the inner surface of the lower inner rail 22b overlaps with the upper end of the lower inner rail 22b.
A decorative frame 60 in which the outdoor side piece is brought into contact with the outdoor surface of 2c and the indoor side piece is projected to the indoor side to form a window stand.
It is attached so as to directly contact the upper surface of A, and as a result, the resin main frame 41, which is the first resin frame, can be detachably attached to the entire lower direction of the aluminum lower frame 22 without using screws or the like. I am doing it. When the resin main frame 41 is attached to the aluminum lower frame 22, the frame body 41a is press-fitted into the concave groove of the aluminum lower frame 22, and its locking portion is locked to the protrusion provided on the aluminum lower frame 22. Let's make aluminum bottom frame 2
Make an elastic fixing to 2.

The rising piece 22c provided on the indoor side of the aluminum lower frame 22 does not have an inverted L-shaped angle structure as in the conventional case, but is formed in an upright shape. The surface does not contact the surface of the decorative frame 60A, but indirectly contacts the vertical surface on the outdoor side with a resin auxiliary frame 42, which will be described later, interposed. Then, the angle piece 4 of the resin main frame 41 attached to the rising piece 22c.
The horizontal plane, which is the indoor surface of 1c, does not have the rising piece 22c, that is, the aluminum metal portion, and does not have the makeup frame 60A.
Directly abuts the surface of. As a result, the resin material having a low heat conductivity comes into contact with the decorative frame 60A on the indoor side to suppress the heat conduction from the outside air to the inside of the room, thereby significantly increasing the heat insulating effect. In addition, the standing indoor surface of the rising piece 22c,
The decorative frame 60A may be partially brought into direct contact with the vertical surface on the outdoor side.

Next, the resin auxiliary frame 42 which is the second resin frame
Is attached to the indoor side of the rising piece 22c of the lower inner rail 22b, and has a frame body 42a having a hollow portion that is housed in a groove formed in the lower surface of the rising piece 22c, and the rising piece 22c. And a standing piece 42b that is in close contact with the inner surface of the. That is, the frame body 4
2a is provided with three locking portions on the upper surface and the lower surface of the vertically long hollow portion, and the upright piece 42b is configured by standing upright from the indoor surface of the frame body 42a, and the locking portion is provided on the outdoor side of the intermediate portion. Is provided. Therefore, the projections 22h provided with the three locking portions provided on the frame main body 42a on the lower surface of the rising piece 22c.
Respectively, and the locking portion provided at the intermediate portion of the rising piece 42b is locked to the protrusion 22j provided on the inside surface of the rising piece 22c, and as a result, the second resin frame is used without using screws or the like. The resin auxiliary frame 42 which is a
It is designed to be detachably attached by locking means over the entire expected direction. As shown in FIG. 6, which will be described later, the resin auxiliary frame 42 is attached to the window opening A integrally with the aluminum lower frame 22 in a state where the resin auxiliary frame 42 is previously attached to the aluminum lower frame 22 by the locking means.

The resin auxiliary frame 42 is located on the indoor side surface of the aluminum lower frame 22, and the indoor surface thereof is in direct contact with the vertical surface which is the outdoor side surface of the decorative frame 60A. Therefore,
The rising piece 22c of the aluminum lower frame 22 is a decorative frame 60A.
Resin frame 4 without directly contacting the outdoor vertical surface of
The inner surface of the first angle piece 41c and the inner surface of the resin auxiliary frame 42 are in direct contact with the surface and the vertical surface of the decorative frame 60A without an aluminum metal portion. Therefore, the heat conduction from the outside air to the interior is suppressed, and the heat insulation effect is remarkably enhanced. Further, the resin main frame 41 and the resin auxiliary frame 42 are attached so as to sandwich the rising piece 22c of the aluminum lower frame 22 so as to suppress heat conduction from the outside air to the inside of the room as much as possible.

Next, the resin cover frame 43 which is the third resin frame.
Is attached between the lower outer rail 22a and the lower inner rail 22b in the indoor-side finding direction of the outer sliding door 10 only, and has a flat horizontal plate 43a and an inverted L-shaped L continuous to the indoor side. It is configured to have a substantially Z-shaped cross section with the letter pieces 43b. Therefore, the outdoor side edge of the horizontal plate 43a is locked to the groove portion 22e provided at the lower end portion of the lower outer rail 22a, and the L-shaped piece 43b is provided at the groove portion 22f of the hollow portion 22d provided at the lower end portion of the lower inner rail 22b. As a result, the resin cover frame 43, which is the third resin frame, is detachably attached to the aluminum lower frame 22 without using screws or the like. The left end portion of the resin cover frame 43 located on the aluminum vertical frame 23 side abuts on the resin vertical frame 33, and the upper surface thereof is pressed and locked by the door stop block 35, and the right side portion (the window opening portion). (A substantially center of A) is pressed and locked by a plate-shaped central airtight block 36 shown in FIG. The central airtight block 36 is formed of a resin plate in a horizontally long rectangular shape, and two projections provided on the outdoor side surface are engaged with the through hole or groove provided at the lower end portion of the lower outer rail 22a to provide an indoor side end. The portion is elastically locked to the lower portion of the hollow portion 22d provided at the lower end of the lower inner rail 22b, and the resin cover frame 43 is pressed and locked.

As described above, the resin lower frame 32 has the resin main frame 41 between the lower inner rail 22b and the rising piece 22c.
The resin auxiliary frame 42 is provided on the indoor side of the rising piece 22c, and the resin cover frame 4 is provided between the lower outer rail 22a and the lower inner rail 22b.
By attaching 3, the lower outer rail 22 on the outdoor side
By covering almost the entire inner peripheral surface of the aluminum lower frame 22 on the indoor side from a, the heat insulation is further improved. As shown in FIG. 6, the procedure for attaching the resin lower frame 32 to the aluminum lower frame 22 is as follows. First, with the resin auxiliary frame 42 constituting the resin lower frame 32 attached to the indoor side portion of the aluminum lower frame 22. , The aluminum lower frame 22 is attached to the window opening A, and then the resin main frame 41 and the resin cover frame 43 are sequentially attached to the aluminum lower frame 22. However, the resin main frame 41 and the resin cover frame 43 may be attached to the aluminum lower frame 22 in advance, and they may be integrally attached to the window opening A. In addition, the lower outer rail 22 on which the inner shoji 10 is located
Since the inner sliding door 10 itself is located between a and the lower inner rail 22b, and the resin main frame 41 is attached to the indoor side thereof, the resin cover frame 43 need not be attached.

Next, as shown in FIG. 6, the resin cover frame 43 is attached to the aluminum lower frame 22 as follows. That is, the outdoor side edge of the horizontal plate 43a is locked by being inserted into the groove portion provided at the lower end portion of the lower outer rail 22a, and the L-shaped piece 43b is provided at the groove portion of the hollow portion 22d provided at the lower end portion of the lower inner rail 22b. Then, the upper surface of the left end located on the aluminum vertical frame 23 side is pressed and locked by the door stop block 35, and the right side is pressed and locked by the central airtight block 36. It becomes. Accordingly, the central airtight block 36 and the door stop block 35 are removed, and the L-shaped piece 43b is pulled up to release the locking of the hollow portion 22d provided at the lower end portion of the lower inner rail 22b with respect to the groove portion,
By pulling out the outdoor side edge of the horizontal plate 43a from the groove portion of the lower outer rail 22a, the aluminum lower frame 2 of the resin cover frame 43
The attachment to 2 can be easily released.

Next, the aluminum upper frame 21 is composed of the upper frame body 21a.
On the other hand, the aluminum lower frame 22 has a hanging piece 21b at a position corresponding to the lower outer rail 22a on the outdoor side, and a protruding piece 21c on the indoor side. Hanging piece 21b
Together with a locking piece 31b of a resin upper frame 31, which will be described later, form an outdoor-side upper rail. The tip of the hanging piece 21b is formed in a substantially J shape on the indoor side and locks the locking piece 31b. The resin upper frame 31 is installed so as to cover the inner peripheral surface of the aluminum upper frame 21 on the indoor side of the hanging piece 21b. The resin upper frame 31 includes a frame main body 31a provided along the aluminum upper frame 21, a locking piece 31b hanging from the frame main body 31a,
Upper rail 31c and angle piece 31d protruding to the indoor side
It consists of and. The locking piece 31b has its tip locked to the tip of the hanging piece 21b of the aluminum upper frame 21, and if necessary, the lower end thereof is partially caulked to firmly bond the two. In the area between the upper rail 31c and the angle piece 31d in the frame body 31a, screw holes are formed at appropriate intervals along the longitudinal direction thereof, and the resin upper frame 31 has its locking piece 31b in the aluminum upper frame. The screw inserted into the screw hole is fixed to the aluminum upper frame 21 by penetrating the projecting piece 21c of the aluminum upper frame 21 in a state of being locked to the hanging piece 21b of 21.

Next, the structure of the left and right vertical frames will be described with reference to FIGS. The aluminum vertical frame 23 on the left side in the figure has a locking projection piece 23a substantially at the center of its inner peripheral surface and an abutting piece 23b parallel to the locking projection piece 23a at the indoor end. The locking projection 23a has a tip bent toward the indoor side, and engages with a locking piece 33b of a resin vertical frame 33 described later. The resin vertical frame 33 is the aluminum vertical frame 23.
It has an expected width of about half and is installed so as to cover the inner peripheral surface of the aluminum vertical frame 23 on the indoor side of the locking projection 23a. The resin vertical frame 33 includes a frame main body 33a that abuts on the inner peripheral surface of the aluminum vertical frame 23, and a locking piece 3 that extends from the outdoor side.
3b and an angle piece 33c extending from the indoor side thereof. The tip of the locking piece 33b engages with the locking projection piece 23a of the aluminum vertical frame 23, and the angle piece 33c.
Is arranged so as to be superposed on the contact piece 23b of the aluminum vertical frame 23, and its tip is bent so that the contact piece 2b
Engage with the tip of 3b. Therefore, the angle piece 33c
The outdoor side piece directly abuts on the outdoor side surface of the decorative frame 60A together with a part of the abutting piece 23b, and the indoor side piece directly abuts on the inner side surface of the decorative frame 60A without an aluminum material. It becomes. When attaching the resin vertical frame 33, the tip of the angle piece 33c is locked first, and then the locking piece 33b is elastically engaged with the locking projection 23a. Screw holes are formed in the frame body 33a along the longitudinal direction thereof, and after the resin vertical frame 33 is installed, the frame main body 33a is fixed to the aluminum vertical frame 23 by screws from the indoor side. Also,
A tight material 33d is provided on the outdoor side of the locking piece 33b, and the tight material 33d is brought into contact with the outdoor side window shovel 10 to improve airtightness.

In the vertical frame on the right side, the aluminum vertical frame 24 is provided with a door stop piece 24a for indoor window shoji on the inner peripheral surface side thereof, and an indoor end portion which is parallel to the door stop piece 24a. The contact piece 24b is provided. The resin vertical frame 34 is installed so as to cover the inner peripheral surface of the aluminum vertical frame 24 on the indoor side of the door stop piece 24a. The resin vertical frame 34 is composed of a frame body 34a that is in contact with the inner peripheral surface of the aluminum vertical frame 24 between the door-contact piece 24a and the contact piece 24b, and an angle piece 34b that extends from the indoor side. There is. Angle piece 34b
Is arranged so as to be superposed on the contact piece 24b of the aluminum vertical frame 24, and the tip end thereof is bent to form the contact piece 2b.
Engage with the base of 4b. A screw hole is formed in the frame body 34a along the longitudinal direction thereof, and after the resin vertical frame 34 is installed with the tip of the angle piece 34b locked to the contact piece 24b of the aluminum vertical frame 24, From the indoor side, the aluminum vertical frame 24 is fixed with screws. Angle piece 3 above
4b is such that the outdoor side piece directly contacts the outdoor side surface of the decorative frame 60A together with a part of the contact piece 24b, and the indoor side piece directly contacts the inner side surface of the decorative frame 60A without interposing the aluminum material. It will be. Also, angle piece 3
A tight material 34c is provided on the outdoor side of 4b, and the tight material 34c is brought into contact with the indoor window shoji 10 to improve airtightness.

As described above, the resin upper frame 31 and the resin lower frame 3
2. Angle pieces 31 provided on the resin vertical frames 33 and 34, respectively
As shown in FIGS. 1 and 2, resin angle pieces (projection pieces) projecting toward the indoor side are provided on the indoor side portions of the d, the angle pieces 41c, and the angle pieces 33c, 34b, respectively, and these are formed around four laps. A continuous resin decorative edge 60 is formed, and the resin decorative edge 6 is formed.
In No. 0, the decorative frame 60A provided on the indoor side of the window opening A is directly interviewed without using an aluminum material so as to have a sense of unity with them. In this way, the resin decorative edge 60
By directly contacting the decorative frame 60A without using an aluminum material, the heat insulating property of the window opening A is significantly improved, and dew condensation is largely prevented. The lower part of the makeup frame 60A constitutes a window stand. Further, in FIG. 1, a screen door 4 is provided on the outdoor side of the window shoji 10, and a door stop block 35 is provided on the end of the lower frame so as to be in contact with the resin vertical frame 33.

The configuration of each window frame in this embodiment has been described above. As described above, the resin upper frame 31, the resin lower frame 32, and the resin vertical frames 33 and 34 basically have respective locking structures with respect to the aluminum upper frame 21, the aluminum lower frame 22, and the aluminum vertical frames 23 and 24, respectively. Further, if necessary, it is attached by a screw screwed from the inner peripheral surface side of the window frame. Therefore, when it becomes necessary to replace these resin frames due to aging or damage due to impact, the inner peripheral surface of the window frame can be released by releasing the locking part that fixes the resin frame without removing the aluminum frame. It is possible to remove the resin frame on the side and replace it.

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the matters described in the above embodiments, and changes and improvements can be made based on the description of the claims. For example, in the above embodiment, the configuration of the present invention is shown for all the frame members of the window frame, but this need not necessarily be applied to all the frame members of the window frame. Further, the concept of “screw” described in this specification is used as a fixture including screws, bolts, and the like. The screws and the like may not be used for all of the resin frame 3 and the aluminum frame 2, but they may be joined by a locking structure.

[0030]

As described above, according to the present invention as set forth in claims 1 to 3, the resin lower frame attached to the aluminum lower frame of the window opening from its inner peripheral portion is composed of the resin main frame and the resin auxiliary frame. Configure and
Since the indoor side surfaces of the resin main frame and the resin auxiliary frame are in direct contact with the decorative frame of the window opening, most of the contact surface with the decorative frame of the window opening is composed of the resin lower frame, and heat conduction is performed. Since the interposition of the aluminum lower frame material, which has a high rate, is minimized, the heat insulation performance is further enhanced, so that it is possible to greatly prevent dew condensation and prevent the corrosion of the window frame. Further, the resin lower frame eliminates the visual coldness of the metal frame, and at the same time, the design can be improved by providing the metal frame with the interior decoration.

Further, according to the present invention as set forth in claim 4, since the resin main frame and the resin auxiliary frame constituting the resin lower frame are attached to the aluminum lower frame by the locking structure, the window is not attached to the window opening. The resin lower frame can be partially replaced with the frame still installed, the resin lower frame can be easily replaced, and the maintainability of the composite sash window can be improved.

According to the present invention of claim 5, the resin lower frame attached to the inner peripheral portion of the aluminum lower frame is composed of a resin main frame, a resin auxiliary frame and a resin cover frame. Since the resin cover frame was installed between the rails of the aluminum lower frame in addition to the resin auxiliary frame, it is possible to cover almost the entire inner surface of the aluminum lower frame provided in the window opening with the resin material. There is an effect that the prevention of dew condensation can be largely achieved by minimizing the interposition of the aluminum lower frame material having high conductivity and further improving the heat insulation performance. Further, the resin lower frame eliminates the visual coldness of the metal frame, and at the same time, the design can be improved by providing the metal frame with the interior decoration.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a sliding window using a composite window frame of the present invention as seen from the indoor side.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is a cross-sectional view corresponding to FIG. 1 in a state where the window shoji is removed.

FIG. 4 is a vertical cross-sectional view corresponding to FIG. 2 with a window screen removed.

5 is an enlarged view of a main part of FIG.

FIG. 6 is an exploded view of FIG.

[Explanation of symbols]

A window opening 1 window frame 2 Aluminum frame 3 resin frame 4 screen door 10 window shoji 11 frame 12 double glazing 13 aluminum frame 14 resin frame 21 Aluminum top frame 21a Upper frame body 21b hanging piece 21c protruding piece 22 Aluminum bottom frame 22a Lower outer rail 22b Lower inner rail 22c Standing piece 22d hollow part 22e, 22f groove 22g, 22h, 22j Protrusion 23 Aluminum vertical frame 23a locking projection 23b contact piece 24 aluminum vertical frame 24a Door piece 24b contact piece 31 Resin top frame 31a frame body 31b Locking piece 31c Upper rail 31d angle piece 32 resin bottom frame 33 resin vertical frame 33a frame body 33b Locking piece 33c angle piece 33d tight material 34 resin vertical frame 34a frame body 34b angle piece 34c Tight material 35 Door Stop Block 36 Central airtight block 41 resin main frame 41a frame body 41b Standing piece 41c angle piece 42 Resin auxiliary frame 42a frame body 42b Standing piece 43 Resin cover frame 43a Horizontal plate 43b L-shaped piece 43c Tight material 60 resin decorative edges 60A makeup frame

Continuation of the front page (56) Reference JP-A-10-325280 (JP, A) JP-A-10-96370 (JP, A) Actually open 62-2776 (JP, U) Actually open 59-190870 (JP , U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) E06B 1/32 E06B 1/62 E06B 1/70

Claims (7)

(57) [Claims] 1. A composite sash equipped with an aluminum frame mounted on a window opening and a resin frame covering an exposed portion on the indoor side of the aluminum frame, wherein an inner inner circumference of an aluminum lower frame mounted on the window opening. The resin lower frame to be attached to the section is composed of a resin main frame and a resin auxiliary frame. The resin main frame is attached to the surface part of the aluminum lower frame, and the resin auxiliary frame is attached to the indoor surface part of the aluminum lower frame. The lower frame of the composite sash, characterized in that the interior surface of the resin auxiliary frame is in direct contact with the decorative frame of the window opening. 2. A composite sash equipped with an aluminum frame mounted on the window opening and a resin frame covering the exposed portion on the indoor side of the aluminum frame, wherein an inner inner circumference of an aluminum lower frame mounted on the window opening. The resin lower frame attached to the section is composed of a resin main frame and a resin auxiliary frame, and the resin main frame is housed in a concave groove formed by the lower inner rail of the aluminum lower frame and the rising piece provided on the indoor side. And a reverse L-shaped angle piece provided along the rising piece and attached to the surface part of the aluminum lower frame, and the resin auxiliary frame is an indoor surface part of the rising piece of the aluminum lower frame. The lower frame of the composite sash, characterized in that the angle piece of the resin main frame and the indoor surface of the resin auxiliary frame are in direct contact with the decorative frame of the window opening. 3. A composite sash equipped with an aluminum frame fitted to the window opening and a resin frame covering the exposed portion of the aluminum frame on the indoor side, wherein the inner circumference of the aluminum lower frame fitted to the window opening is inside. The resin lower frame attached to the section is composed of a resin main frame and a resin auxiliary frame, and the resin main frame is housed in a concave groove formed by the lower inner rail of the aluminum lower frame and the rising piece provided on the indoor side. A frame body, an upright piece that is in close contact with the inner surface of the lower inner rail, and an inverted L-shaped angle piece that is provided along the upright piece, and is attached to the surface portion of the aluminum lower frame. The resin auxiliary frame consists of a frame body that is housed in a groove formed in the lower surface of the rising piece of the aluminum lower frame, and a standing piece that is in close contact with the inner surface of the rising piece. Attached to the angle piece of the resin main frame Lower frame of the composite sash, characterized in that the indoor side surface of the resin the auxiliary frame formed by interview directly to the decorative frame of each window opening. 4. The composite sash according to claim 1, wherein each of the resin main frame and the resin auxiliary frame constituting the resin lower frame is attached to the aluminum lower frame by a locking means. Lower frame. 5. A composite sash provided with an aluminum frame fitted to the window opening and a resin frame covering the exposed portion on the indoor side of the aluminum frame, wherein the inner inner circumference of the aluminum lower frame fitted to the window opening. The resin lower frame attached to the section is composed of a resin main frame, a resin auxiliary frame, and a resin cover frame, and the resin main frame is a recess formed by the lower inner rail of the aluminum lower frame and the rising piece provided on the indoor side. The frame main body is housed in the groove, and the inverted L-shaped angle piece is provided along the rising piece. The resin auxiliary frame is configured to be attached to the indoor side of the rising piece of the aluminum lower frame.
The lower frame of the composite sash, wherein the resin cover frame is configured to be attached to the indoor side of the shoji screen between the lower outer rail and the lower inner rail. 6. The lower frame of the composite sash according to claim 5, wherein the angle piece of the resin main frame and the indoor side surfaces of the resin auxiliary frame are in direct contact with the decorative frame of the window opening, respectively. 7. The composite according to claim 5, wherein each of the resin main frame, the resin auxiliary frame, and the resin cover frame forming the resin lower frame is attached to the aluminum lower frame by a locking means. The lower frame of the sash.