JP3247051B2 - Double sash connection frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting frame for connecting window frames of an outer sash and an inner sash constituting a double sash.

[0002]

2. Description of the Related Art There is a double sash in which individual sashes are attached to an outdoor side and an indoor side of a window in order to enhance heat insulation and sound insulation of the window. Since the estimated width of the wooden frame (wooden frame) forming the window opening is not constant, when the window frames of the inner and outer sashes are installed, the window frame of the inner sash is installed at the indoor side end of the window frame of the outer sash. In some cases, it may not be possible to attach the outer end in close contact. For this reason, in order to prevent the wooden frame from being exposed between the window frames and damaging the interior of the windows, and to prevent dew condensation on the building frame from the gap between the window frames, the double frame has conventionally been used. A connecting frame that connects sash window frames is used.

[0003]

However, since the conventional connecting frame is not formed in consideration of the dimensional relationship with the window frame of the outer sash, it is assembled in a rectangular shape in advance, and the outer sash after the mounting is mounted. Since it cannot be carried into the window frame and mounted, the upper and lower frames and the left and right vertical frames that constitute the connecting frame are individually loaded into the outer sash window frame, individually mounted, and finally a rectangular ring However, there was a problem that installation was troublesome and time-consuming.

FIG. 5 is a longitudinal sectional view of a double sash showing one of the conventional examples having the above-mentioned problem, and FIG. 6 is a transverse sectional view of the sash. A connection frame F3 is mounted between the indoor side end of the window frame F1 of the outer sash S1 and the outdoor side end of the window frame F2 of the inner sash S2, and the gap between both window frames is closed. d1
1, d12; d21, d22 are sliding sliding doors built on the window frames F1, F2. The connecting frame F3 is composed of the window frames F1, F
Like FIG. 2, the frame includes upper and lower frames 31 and 32 and left and right vertical frames 33. Then, as will be described later, in a state where the lower frame 3 is attached to the window frame of the inner and outer sashes from the upper end of the outer connecting portion 31a formed at the outdoor end of the upper frame 31.
The distance H1 to the lower end of the locking ridge 321 formed at the outdoor side end of No. 2 is greater than the distance H2 between the rails r1 and r2 supporting the upper and lower ends of the inner sash d12 of the outer sash. An outer connecting portion 3 extending outward with respect to an opening formed by the connecting frame at the outdoor end of the left and right vertical frames 33 of the connecting frame F3.
The distance W1 between the distal ends of 3a is larger than the distance W2 between the projections 13a formed on the door stop surfaces of the left and right vertical frames 13 of the outer sash window frame.

Therefore, each frame 31, 32, 3 of the connecting frame F3
If the connecting frames 3 and 33 are previously connected in a rectangular shape, the outer peripheral dimension along the outer peripheral surface of the connecting frame is larger than the inner peripheral dimension formed by the inner peripheral surface of the outer sash window frame F1. Cannot be inserted from either the indoor side or the outdoor side of the outer sash window frame. Thus, conventionally, each frame 31, 32, 3
3 are individually attached, the outer connecting portions of the respective frames are fitted and locked to the inner peripheral edges of the indoor side end surfaces of the upper and lower frames and the vertical frames of the outer sash window frame, and screws are attached from the inner connecting portions to the window frame. Are screwed into the upper and lower frames 41, 42 and the vertical frame 43, respectively, so that the frames 31 to 33 are continuous in a rectangular shape. After the connection frame F3 is attached, the window frame F2 of the inner sash is inserted from the indoor side into the inside of the window wooden frame, and the outdoor portion of the window frame F2 is telescopically fitted into the inside connection portion of the connection frame F3. Then, the window frame F2 was fixed with screws. For this reason, as described above, conventionally, it takes time and effort to mount the connecting frames, and there is a possibility that the mounting positions of the frames may shift.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and a problem thereof is that the connecting frame is assembled in a rectangular shape in advance, and the outer frame is fitted easily from the outdoor side of the outer sash. Is to be able to be mounted on a sash.

[0007]

In order to achieve the above object, a connecting frame according to the present invention comprises firstly an outer connecting portion (31a) rising at an outdoor end and a horizontal portion extending from a lower end of the outer connecting portion. Inside connection part (31b) extending in the indoor direction
An upper frame (31) having an L-shaped cross section, an outer connecting portion (33a) extending laterally outward of an opening formed by the connecting frame at an outdoor end, and the opening-side end of the outer connecting portion. Left and right vertical frames (33) having an inverted L-shaped cross section having an inner connecting portion (33b) extending inward from the portion, and an outer connecting portion having a locking projection (321) projecting downward at the outdoor end. (32a) and a lower frame (3) having an inner connecting portion (32b) extending from the outer connecting portion in the horizontal indoor direction.
2) and the outer connecting portions are connected so as to be continuous in a rectangular ring on one vertical plane. Second, the outer peripheral surface of the inner connecting portion of each frame of the connecting frame has a rectangular shape. A rectangular shape formed by the inner peripheral edge (111, 131, 121) of the indoor side end of the outer sash window frame, smaller than the latter, and from the upper end of the outer connecting portion of the upper frame of the connecting frame to the connecting frame. The distance (H3) from the lower edge of the locking projection of the lower frame to the lower edge of the hanging edge (111) of the indoor side edge of the upper frame of the outer sash window frame is determined by the distance from the lower edge of the lower frame of the sash window frame. The rising edge of the inner end (12
The distance (W3) between the outer ends of the outer connecting portions (33a) of the left and right vertical frames (33) of the connecting frame is larger than the distance (H4) to the upper end of (1). Vertical frame (1
3) The distance (W) between the projections (132) provided on the door stop surface
4) is smaller than the distance (W5) between the inside edge (131) of the vertical frame of the outer sash window frame on the indoor side end. Third, the upper frame of the extra sash window frame. A locking groove (112) is formed on the outdoor side at the lower end of the hanging edge (111) of the indoor side end of (11), and is formed at the upper end of the outer connecting portion (31a) of the upper frame (31) of the connecting frame. A locking edge (311) is provided in the locking groove so as to be fitted and locked in a snap-fit manner, and a rising edge (121) at the indoor end of the lower frame (12) of the outer sash window frame.
A groove (12) into which the locking projection (321) provided on the outer connecting portion of the lower frame (32) of the connecting frame is fitted at the upper end of the frame.
2), the tip of the inner edge (131) of the indoor side end of the vertical frame (13) of the outer sash window frame and the vertical frame (33) of the connecting frame.
A locking means (133, 331) for locking by fitting is provided at the tip of the outer connecting portion (33a).

According to the above construction, the connecting frame assembled in a rectangular shape in advance is inserted into the outer sash window frame from the outdoor side into the window frame, and the connecting frame fitted to the outer sash window frame is pressed toward the indoor to connect. The outer connecting portion of the vertical frame of the frame is connected to the indoor side end of the vertical frame of the outer sash window frame by fitting and locking, and the upper and lower outer connecting portions of the connecting frame of the sash window frame are connected to the outer sash window frame. It can be connected and fixed to the upper and lower frames.

[0009]

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 longitudinal sectional view of a double sash showing a state in which an outer sash and an inner sash are connected using a connecting frame according to the present invention, and FIG. 2 is a transverse sectional view of the double sash. 3 is a partially cutaway perspective view showing only the connection frame. FIG. 4 is an exploded view of the lower frame of the outer sash window frame of FIG. Members that are the same as or correspond to those of the above-mentioned conventional components are denoted by the same reference numerals, and redundant description is omitted.

1 and 2, the window frame F1 of the outer sash S1 is formed by connecting upper and lower frames 11, 12 and left and right vertical frames 13 into a rectangle by a known method. Is attached to the building frame. The window frame F2 of the inner sash S2 is also formed by connecting the upper and lower frames 21, 22 and the left and right vertical frames 23 to each other in a rectangular shape by a known method as in the prior art. Connection frame F3 according to
After installation, it is attached to the building frame by known methods.

First, the structure of the connecting frame F3 according to the present invention will be described with reference to FIG. As shown in FIG. 3, the connecting frame F3 includes upper and lower frames 31, 32 and left and right vertical frames 33.
And are connected in a rectangular ring shape. The upper frame 31 is formed to have an L-shaped cross section, having an outer connecting portion 31a that rises at the outdoor end and an inner connecting portion 31b that extends in the horizontal indoor direction from the lower end of the outer connecting portion. The lower frame 32 is formed in a horizontal plate shape, and has an outer connecting portion 3 having a locking projection 321 projecting downward at an outdoor end.
2a and an inner connecting portion 32b extending from the outer connecting portion in the horizontal indoor direction and having a protruding edge 322 protruding downward. Also, the left and right vertical frames 33 extend outward in the lateral direction of the opening formed by the connection frame at the outdoor end, and extend indoors from the opening-side end of the outer connection portion. It has an inner connecting portion 33b and is formed in an L-shaped horizontal section. The outer connecting portions 31a and 33a of each of the frames and the locking projection 321 are connected in a rectangular shape so as to be continuous in a rectangular ring shape on one vertical plane. The method of connecting the rectangular frames is not particularly limited, but in the illustrated example, the indoor side connecting portion 33b of both vertical frames 33 is formed into a double wall shape, and a screw hole 33c is provided therebetween. The upper and lower edges of the upper and lower frames 31 and 32, respectively
Are connected to each other by abutting against the opposing surfaces of the inner connecting portions 31b and 32b of the upper frame 31 and through the screws b from the opposite sides of the upper and lower frames 31 and 32, respectively, and screwing into the screw holes 33c of the vertical frame 33.

In the connecting frame mounting structure according to the present invention,
As described above, the framed connecting frame F3 is inserted into the window frame F1 from the outdoor side of the outer sash F1 previously fixed to the building frame, and is inserted into the indoor side end of the outer sash window frame F1. The following improvements have been made to the outer sash window frame F1 to enable the outer sash window frame F1 to be connected to the periphery (111, 131, 121) at the outer connecting portions 31a, 32a, 33a of the connecting frame. That is, the rectangular shape formed by the outer peripheral surfaces of the inner connecting portions 31b, 32b, and 33b of each frame of the connecting frame F3 is the inner peripheral edge (111, 13) of the indoor side end of the outer sash window frame.
1, 121) is substantially similar to the rectangular shape of the lower frame 32 and is smaller than the latter, and has a distance H3 from the upper end of the outer connecting portion 31a of the upper frame 31 to the lower end of the outer connecting portion 32a of the lower frame 32.
Is the distance H4 from the lower end of the hanging edge 111 at the indoor end of the upper frame 11 of the outer sash window frame F1 to the upper end of the rising edge 121 of the indoor end of the lower frame 12 of the outer sash window frame. And the outer connecting portions 3 of the left and right vertical frames 33 of the connecting frame F3.
The distance W3 between the outer ends of the outer sash window frame F1 is smaller than the distance W4 between the projections 131 provided on the door stop surfaces of the left and right vertical frames 13 of the outer sash window frame F1, and the indoor side of the vertical frame 13 of the outer sash. It is larger than the distance W5 between the end inner edges 132.
That is, it is designed so that the relationship of W5 <W3 <W4 is satisfied.

With the above structure, the rectangular connection frame F3 is fitted into the outer sash window frame F1, and the inner connection portions 31b, 32b, 33b of the connection frame are connected to the frame forming the building frame. In addition to facing the inner peripheral surface of the window opening formed by the pillar 41, the pillar 42, and the window base 43, the outer connecting portion of the connecting frame is connected to the inner peripheral walls 111, 121 at the indoor end of the outer sash window frame. , 131 in contact with the outdoor side,
The periphery of the outer sash window frame F1 and the periphery of the connection frame F3 can be joined by fastening with screws, fitting and locking by grooves and locking edges, or other connecting methods.

The illustrated embodiment also shows an example in which the outer sash and the connecting frame are easily connected by fitting and locking without using parts such as screws and fastening tools. Will be described.

The hanging edge 111 at the indoor end of the upper frame 11 of the outer sash window frame F1 is hung down to at least a position slightly lower than the inner sash guide rail r1 of the same upper frame, and is engaged with the lower end of the hanging edge 111. A locking groove 112 is formed, and is engaged with the locking groove 112 of the upper frame 11 of the outer sash window frame in an upper end portion of the outer connecting portion 31a of the upper frame 31 of the connecting frame in a snap-fit manner. A stop edge 311 is provided. Further, a locking projection 321 provided on the outer connecting portion 32a of the lower frame 32 of the connecting frame F3 is fixedly mounted on the upper end of the rising edge 121 at the indoor side end of the lower frame 12 of the outer sash window frame F1. Groove 122 to be fitted
Is provided. Further, the tip of the inner edge 131 at the indoor side end of the vertical frame 13 of the outer sash window frame and the vertical frame 33 of the connecting frame F3.
Locking means is provided at the tip of the outer connecting portion 32a for engaging and locking by pressing the connecting frame F3 in the indoor direction. As the locking means, for example, as shown in the example shown in the figure, a locking means having a locking groove 331 provided on one of the outer connecting portion 32a and the inner edge 131 and a locking edge 133 provided on the other may be used. it can.

With the above structure, the connecting frame F3 according to the present invention is provided.
Are inserted into the outer sash window frame F1 in a framed state, and the locking grooves 331 of the left and right vertical frames 33 of the connecting frame F3 are inserted.
Is positioned so as to face the locking edge 133 of the vertical frame of the outer sash window frame F1, and the inner connecting portions 31b and 32 of the connecting frame F3 are positioned.
After positioning b, 33b in the window opening, the connecting frame F3
Is slightly lifted, and the locking edge 311 of the upper frame 31 is moved to the window frame F1.
Slightly above the opening of the locking groove 113 in the upper frame, the connecting frame F
3 the locking projection 321 of the lower frame 32 is inserted into the groove 1 of the lower frame of the window frame F1.
Then, the connection frame F3 is positioned so as to face slightly higher than 22, and the connection frame F3 is strongly pushed in the indoor direction. This allows
The locking edges 133 of the left and right vertical frames 13 of the window frame F1 are connected to the connecting frame F3.
And is locked. Subsequently, by pushing down the connecting frame F3 in a parallel state downward, the locking edge 311 of the upper frame 31 fits into the locking groove 112 and the locking projection 321 of the lower frame 32 fits into the groove 122 at the same time. do it,
The connecting frame F3 is fixed so as not to be movable in any directions indoors and outdoors. In this state, screws are screwed into the window frames 41, 42, 43 from the inner peripheral surface of the inner connecting portion of the connecting frame F3 and fixed. Thereafter, the inner sash window frame F2 is inserted into the window opening from the indoor side, and the outdoor portion of the inner sash window frame F2 is connected to the connecting frame F3.
Are nested in the inside of the inner connecting portion of the window frames 41, 42, 42 in the upper and lower and vertical frames 21, 22, 23.
43 is the same as the inner sash window frame in the conventional double sash.

If the outer sash window frame F1 is made of resin and a sliding shoji is to be mounted on it, the lower frame 12
Is required to have strength capable of withstanding the entire load of the shoji. Since the outer sash window frame F1 shown in FIG. 1 is made of a resin, the lower frame 12 is made of an aluminum frame A and a resin frame P against the outside air in order to secure high heat insulation and a large mounting strength to the building frame. A composite frame formed by covering with a metal is used. A screw is screwed into the building frame at a portion where the fixed edge 124 of the resin frame P is superimposed on the fixed edge 123 of the aluminum frame A.
The connection frame F3 is also made of resin, and is screwed from the inner connection portion 32b of the lower frame 32 to the upper fixed edge 125 of the aluminum frame A and screwed into the window base 42.

According to the strength required for the lower frame 12,
Generally, the degree of complexity of the cross-sectional shape of the aluminum frame A and the resin frame P changes. In order to facilitate the molding of the resin frame P formed so as to surround the periphery of the aluminum frame A as in the illustrated lower frame 12 and the coupling to the aluminum frame A, in a preferred embodiment, as shown in FIG. Then, the resin frame P is separately molded into a lower cover body C1 and an upper cover body C2,
They are connected by engagement. That is, the lower cover body C1 is attached to the lower fixed edge 12 of the aluminum frame A at the tip of the fixed edge 124 extending downward at the indoor end.
3 and an engaging portion 126 provided on the outdoor side portion of the aluminum frame A at the outdoor end.
7 and an engaged portion 1210 which is engaged with an engaging portion 129 formed on the outdoor portion of the upper cover C2. Also, the upper cover body C
2 has an engaging portion 1 of the lower cover body C1 on its outdoor side portion.
An engaging portion 129 to be engaged with 210 is provided on the indoor side portion with a connecting portion 1212 which is connected to an upper portion of the indoor side surface of the aluminum frame A by a fastener such as a screw. The rising edge 121 and the locking groove 122 are formed in the upper cover body C2.

With the above structure, the resin frame P and the aluminum frame A
And are combined as follows. That is, the lower fixed edge 127 of the aluminum frame A is engaged with the engaging portion 126 at the tip of the fixed edge 124 of the lower cover C1, and the engaged portion 128 of the outdoor portion of the lower cover C1 is connected to the aluminum frame A. Of the lower cover C1 and the aluminum frame A, and then the lower cover C1 is engaged with the indoor engaging portion 129 of the upper cover C2. Outer engaged part 1210
At the same time, the joining parts 1211, 1212 formed thickly on the upper side of the indoor side of the upper cover body C2 and the aluminum frame A and the upper side of the indoor side of the upper cover body C2 overlap each other, The upper cover body C2 and the aluminum frame A are firmly connected to each other by using fasteners such as screwing screws or driving rivets from the indoor side.

As described above, since the lower frame of the outer sash window frame F1 is fixed by the screw screwed in the fixed edge where the resin frame and the aluminum frame are overlapped, the mounting strength to the building frame is as shown in FIG. It is apparent that the fixing edge of the resin frame is much larger than the case where it is fixed with the screw screwed in only at the fixing edge of the aluminum frame A. Therefore, the mounting strength is not impaired.

The aluminum frame A of the lower frame 12 attached is entirely covered with the resin frame P except for the indoor side surface, and does not come into contact with the outside air, so that dew condensation does not occur. The lower frame 12 is set slightly shorter than the resin frame P in consideration of the difference in thermal expansion between aluminum and resin, and both ends in the longitudinal direction are separated from the facing surface of the vertical frame 13. However, both ends of the resin frame P are made of a resin vertical frame 13.
Is welded or in close contact with the opposite surface of the window frame, so that the airtightness and watertightness of the corner portion of the window frame are not impaired.

[0022]

As described above, according to the present invention, the connecting frame is inserted from the outside of the outer sash window frame in a state where it is assembled in a rectangular shape in advance, and the outer edge of the outer sash window frame is attached to the outer sash window frame. Just press down on the indoor side edge of
Easy and reliable installation. Unlike the related art in which each component of the connection frame is individually attached, no time and effort is required. In addition, since the connecting frame can be assembled before being mounted on the sash, the assembling efficiency is good, the completed connecting frame has a large mechanical strength, and there is no fear of displacement of the mounting position.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a double sash to which a connecting frame according to the present invention is attached.

FIG. 2 is a transverse sectional view of the same.

FIG. 3 is a partially cutaway perspective view showing only a connection frame extracted and shown.

FIG. 4 is an exploded view of a lower frame of the outer sash window frame of FIG. 1;

FIG. 5 is a longitudinal sectional view of a conventional double sash to which a connecting frame is attached.

FIG. 6 is a transverse sectional view of the same.

[Explanation of symbols]

S1 Outer sash S2 Inner sash F1 Outer sash window frame 11 Upper frame 111 Hanging edge 112 Shoji guide rail 113 Locking groove 12 Lower frame 121 Rising wall 122 Locking groove 13 Vertical frame 131 Indoor side wall 132 Protrusion on door contact surface 133 Retaining edge F2 Inner sash window frame F3 Connecting frame 31 Upper frame 31a Outer connecting portion 31b Inner connecting portion 311 Locking edge 32 Lower frame 32a Outer connecting portion 32b Inner connecting portion 321 Locking protruding edge 33 Vertical frame 33a Outer connecting portion 33b Inner Connection part 331 Locking groove H3 Distance between upper end and lower end of outer connection part of upper frame and lower frame of connection frame H4 Hanging edge of upper frame and rising wall of lower frame of indoor side end of outer sash window frame W3 Distance between the outer edges of the vertical frame of the connecting frame W4 Distance between the ridges on the door stop surface of the vertical frame of the outer sash window frame W5 Between the indoor end portions of the vertical frame of the outer sash window frame distance

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 56-97472 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 1/18 E06B 3/26

Claims (1)

(57) [Claims] 1. A connecting frame for connecting an outer sash and a window frame of an inner sash constituting a double sash, wherein the connecting frame includes an outer connecting portion (31a) rising at an outdoor side end and a connecting portion thereof. An upper frame (31) having an L-shaped cross section having an inner connecting portion (31b) extending in a horizontal indoor direction from a lower end portion of the outer connecting portion, and a laterally outer side of an opening formed by the connecting frame at an outdoor end. Extended outer connection (33
a) and an inner connecting portion (33b) extending inward from the opening-side end of the outer connecting portion, left and right vertical frames (33) having a cross-sectionally L-shaped section, and projecting downward at the outdoor-side end. Outer connecting portion (32) having a locking projection (321)
a) and a lower frame (32) having an inner connecting portion (32b) extending in a horizontal indoor direction from the outer connecting portion such that each outer connecting portion is continuous in a rectangular annular shape on one vertical plane. The rectangular shape formed by the outer peripheral surface of the inner connecting portion of each frame of the connecting frame is an inner peripheral edge (111, 1) of the outer sash window frame on the indoor side.
31, 121), which is substantially similar to and smaller than the rectangular shape of the connecting frame, and which extends from the upper end of the outer connecting portion of the upper frame of the connecting frame to the lower end of the locking projection of the lower frame of the connecting frame. The distance (H3) is from the lower end of the hanging edge (111) at the indoor end of the upper frame of the outer sash window frame to the upper end of the rising edge (121) at the indoor end of the lower frame of the sash window frame. Distance to (H
The distance (W3) between the outer ends of the outer connecting portions (33a) of the left and right vertical frames (33) of the connecting frame is larger than that of the left and right vertical frames (13) of the outer sash window frame. The inner edge (13) of the vertical frame of the outer sash window frame is smaller than the distance (W4) between the projections (132) provided on the contact surface.
1) A locking groove (112) is provided on the outdoor side at the lower end of the hanging edge (111) at the indoor side end of the upper frame (11) of the upper frame (11) of the outer sash window frame. Formed on the outer connecting portion (31) of the upper frame (31) of the connecting frame.
The upper edge of (a) is provided with a locking edge (311) which fits and locks in the locking groove in a snap-fit manner, and a rising edge of the indoor side end of the lower frame (12) of the outer sash window frame. A groove (122) into which an engaging projection (321) provided on an outer connecting portion of the lower frame (32) of the connecting frame is fitted into the upper end of the (121) in a steadily manner.
A tip of an inner edge (131) of an indoor side end of the vertical frame (13) of the outer sash window frame and a vertical frame (3) of the connection frame.
3) A double sash connection frame, wherein a locking means (133, 331) for locking by fitting is provided at the tip of the outer connection portion (33a) of (3).