JP7777395B2 - Building materials - Google Patents

Description

This disclosure relates to building materials.

Traditionally, in fixtures such as casement windows, a shoji screen is placed on the inner periphery of the frame. For casement windows, a technology has been proposed in which airtight material is placed between the interior side of the frame and the exterior side of the shoji screen, and between the interior side of the frame and the exterior side of the shoji screen, to seal the gap between the frame and the shoji screen (see, for example, Patent Document 1).

JP 2014-163085 A

To place airtight materials in multiple locations, it is necessary to mold the molding material into a complex shape so that the airtight materials can be placed on the frame and shoji screens, as well as attach the airtight materials to the frame or frame. Furthermore, because the majority of the frame or frame that forms the hollow space between the airtight material on the outside and the airtight material on the inside are made of metal components such as aluminum, they are cooled by the cold air outside, which is then transmitted into the room through the airtight material on the inside, reducing the window's insulating performance.

This disclosure relates to a composite sash fitting in which at least one of a frame and a shoji screen placed within the frame is made of metal and resin, the frame having a frame-shoji side portion positioned opposite the shoji screen, the shoji screen having a shoji-frame side portion positioned opposite the frame-shoji side portion, and at least one side of the frame and the shoji screen has an airtight material formed on one side of either the frame-shoji side portion or the shoji-frame side portion and abutting toward the other side, the airtight material being integrally molded with the resin frame-shoji side portion or the resin shoji-frame side portion and arranged with multiple airtight materials spaced apart from each other.

FIG. 2 is a vertical cross-sectional view of the sliding window of the present embodiment. FIG. 2 is a horizontal and vertical cross-sectional view of the horizontal sliding window of the present embodiment.

Embodiments of the present disclosure will be described in detail below with reference to the drawings. The fixture of this embodiment is a sliding window 1 placed in an opening 101 of a building 100. The sliding window 1 has a frame 2, a shoji screen 3, an opening/closing mechanism 4, and an airtight material 6. The sliding window 1 is a composite sash, with the frame 2 side made of aluminum and resin. The resin making up the frame 2 is a hard resin. The shoji screen 3 is made of metal.

In this specification, the "visible direction" refers to the left-right direction when viewed from the front of the sliding window 1, and the "looking-in direction" refers to the direction from the inside to the outside of the sliding window 1, i.e., the depth direction. The "up-down direction" refers to the top-to-bottom direction. The "outer periphery" of the frame 2 and the shoji screen 3 refers to the outer edge side of the frame 2 and the shoji screen 3, and the "inner periphery" refers to the center side of the frame 2 and the shoji screen 3.

The frame body 2 is a rectangular frame assembled around the approximately rectangular opening 101 in which the sliding window 1 is placed. The frame body 2 has an elongated upper frame 21, a lower frame 22, and a pair of vertical frames 23 (see Figure 2), each of which constitutes one side of the frame body 2.

The upper frame 21 is a molded member arranged to extend approximately horizontally in the front direction along the upper edge of the opening 101. The upper frame 21 has an aluminum upper frame portion 21a made of aluminum and a resin upper frame portion 21b made of resin.

The aluminum upper frame portion 21a has engaging pieces 211 that protrude downward. The resin upper frame portion 21b engages with the engaging pieces 211 of the aluminum upper frame portion 21a and covers the lower side of the aluminum upper frame portion 21a on the interior side.

The resin upper frame portion 21b is formed in a roughly L-shape in cross section and has an upper frame room side portion 212 and an upper frame shoji side portion 213.

The upper frame interior side portion 212 is the portion of the resin upper frame portion 21b that extends from the interior side toward the front. The upper frame interior side portion 212 forms the interior-facing top surface of the upper frame 21.

The upper frame shoji side portion 213 extends downward from the exterior end of the upper frame interior portion 212. The upper frame shoji side portion 213 extends perpendicular to the upper frame interior portion 212, and its upper end engages with the engagement piece 211. The upper frame shoji side portion 213 has a thickness in the projection direction and has a hollow structure inside, and the exterior surface 213a of the upper frame shoji side portion 213 is positioned opposite the interior surface 313 of the upper frame stile 31 of the shoji 3, which will be described later. The exterior surface 213a of the upper frame shoji side portion 213 forms the frame body shoji side portion of the frame body 2.

The lower frame 22 is a molded member arranged to extend approximately horizontally in the viewing direction along the lower edge of the opening 101. The lower frame 22 has an aluminum lower frame portion 22a made of aluminum and a resin lower frame portion 22b made of resin.

The aluminum lower frame portion 22a extends in the front direction and is positioned below the lower frame 22, i.e., on the outer periphery of the frame body 2. The aluminum lower frame portion 22a is formed with a step between the indoor and outdoor sides, and has an outdoor lower stage portion 221 and an indoor upper stage portion 222. The outdoor lower stage portion 221 is positioned on the outdoor side of the lower frame 22 and on the outer periphery of the frame body 2. The outdoor lower stage portion 221 is formed with a hollow structure in cross section and is positioned so that it protrudes to the outdoor side through the opening 101. The outdoor lower stage portion 221 has a flat upper surface 221a. The indoor upper stage portion 222 is positioned indoors relative to the outdoor lower stage portion and is fixed to the frame of the building 100. The indoor upper stage portion 222 has an upper surface 222a, a stepped surface 222b, an indoor side surface 222c, and a resin lower frame portion engagement piece 222f. The upper surface 222a of the indoor upper section 222 is located higher than the upper surface 221a of the outdoor lower section 221. The step surface 222b extends to connect the step between the upper surfaces 221a and 222a. A separate airtight material 66 is provided on the step surface 222b. The indoor side surface 222c extends vertically on the indoor side. The resin lower frame engagement piece 222f protrudes upward from the upper surface 222a.

The resin lower frame portion 22b is positioned above the aluminum lower frame portion 22a, i.e., closer to the inner periphery than the aluminum lower frame portion 22a. The resin lower frame portion 22b is formed in a generally L-shape in cross section and has an upright portion 223 and an interior frame portion 224.

The rising portion 223 is a plate-shaped portion that rises upward from the upper surface 222a of the indoor-side upper stage 222 of the aluminum lower frame portion 22a. The rising portion 223 engages with the resin lower frame portion engagement piece 222f. The opening/closing mechanism 4, described below, is fixed to the rising portion 223.

The indoor frame portion 224 extends in the projection direction on the indoor side of the lower frame 22. The indoor frame portion 224 is positioned at a distance from the upper surface 222a of the indoor upper section 222 of the aluminum lower frame portion 22a toward the inner periphery of the frame body 2, i.e., upward, and extends opposite the upper surface 222a. The indoor frame portion 224 extends from the upper end of the upright portion 223 toward the outdoor side. The indoor frame portion 224 has a length dimension in the projection direction that is approximately the same as the projection direction of the lower frame 22, a length dimension in the projection direction that is approximately half the projection direction of the lower frame 22, and is formed in a thin, approximately rectangular parallelepiped shape with a thickness direction that is shorter than the length dimension in the projection direction. The indoor frame portion 224 is hollow inside and has a hollow structure portion 225.

Screen holders 51, 52 capable of holding the ends of the screen 5 are formed on the indoor frame portion 224 of the resin lower frame portion 22b and the upper frame shoji side portion 213 of the resin upper frame portion 21b. The screen holders 51, 52 are arranged opposite each other above and below.

As shown in Figure 2, the vertical frame 23 extends in the vertical direction of the opening 101 and is arranged to connect the upper frame 21 and the lower frame 22 at both ends of the upper frame 21 and the lower frame 22. The vertical frame 23 has an aluminum vertical frame portion 23a and a resin vertical frame portion 23b.

The aluminum vertical frame portion 23a has a projection portion 231 and an engagement portion 232. The projection portion 231 fits along the vertical edge of the opening 101 and covers the vertical edge of the opening 101 in the projection direction. The engagement portion 232 has engagement pieces 232a and 232b that protrude in the projection direction toward the inner periphery of the frame body 2 from approximately the center of the projection portion 231 in the projection direction and from the indoor end.

The resin vertical frame portion 23b is formed in a roughly L-shape in cross section and includes a vertical frame room-side portion 233 and a vertical frame shoji side portion 234. The vertical frame room-side portion 233 extends along the projection direction on the inner periphery of the projection portion 231 of the aluminum vertical frame portion 23a. The vertical frame shoji side portion 234 bends from the outdoor end of the vertical frame room-side portion 233 and extends along the projection direction. The vertical frame shoji side portion 234 is positioned opposite the indoor side surface 333 of the vertical stile 33 of the shoji 3, which will be described later. The vertical frame shoji side portion 234 forms the frame-body shoji side portion of the frame body 2. The airtight material 6, which will be described later, is integrally molded with the vertical frame shoji side portion 234. A screen door holder 53 that holds a screen door 5 is located at the indoor corner where the vertical frame room-side portion 233 and the vertical frame shoji side portion 234 are connected.

The shoji screen 3 surrounds the glass section 34 (described below) on all four sides and is positioned on the inner periphery of the frame 2 so that it can be opened and closed. The shoji screen 3 has a frame 30 and a glass section 34. The frame 30 has an elongated upper frame 31, a lower frame 32, and a pair of vertical frames 33. The frame 30 is formed in a roughly U-shaped cross section, opening toward the inner periphery. The frame 30 is made entirely of aluminum.

The upper frame 31 has an exterior side surface 311 extending to the outside of the room, an upper frame projection portion 312, an interior side surface 313, and an airtight material abutment portion 314. The exterior side surface 311 has a flat surface extending downward from near the exterior end of the upper frame 21. The upper frame projection portion 312 protrudes perpendicular to the exterior side surface 311 and extends in the projection direction. The interior side surface 313 extends from the exterior end of the upper frame projection portion 312 opposite the exterior side surface 311. The airtight material abutment portion 314 is a protrusion that protrudes in the projection direction from the interior side surface 313 toward the interior of the room. As shown in Figure 1, the tip of the protrusion of the airtight material abutment portion 314 bends upward to form a surface that is short in the vertical direction and is configured with a surface against which the airtight material 6 can abut. The airtight material abutment portion 314 forms the side portion of the shoji frame of the shoji screen 3. The exterior side surface 311, the upper frame projection portion 312, and the interior side surface 313 form the glass holding portion 31c, which is open downward.

The lower frame 32 has an exterior side surface 321, a lower frame projection portion 322, an interior side surface 323, a hollow structure portion 324, and an airtight material abutment portion 325. The exterior side surface 321 has a flat surface extending upward from near the exterior end of the lower frame 22. The lower frame projection portion 322 protrudes in a direction perpendicular to the exterior side surface 321 and extends in the projection direction. The interior side surface 323 extends from the exterior end of the lower frame projection portion 322 opposite the exterior side surface 321. The hollow structure portion 324 is a hollow portion located below the lower frame projection portion 322 and formed along the lower frame projection portion 322. The hollow structural portion 324 is composed of a portion of the exterior side surface 321, a lower frame projection portion 322, a portion of the interior side surface 323, and a hollow projection piece 3241 that faces the lower frame projection portion 322. The airtight material abutment portion 325 is a protrusion that protrudes in the projection direction from the interior side surface 323 toward the interior side.

The vertical frame 33 has an exterior side surface 331, a vertical frame projection portion 332, and an interior side surface 333. The exterior side surface 331 extends in the front direction from the inner periphery of the exterior end of the vertical frame 23. The vertical frame projection portion 332 extends in the front direction from the exterior side surface 331. The interior side surface 333 extends in the front direction from the interior end of the vertical frame projection portion 332 toward the inner periphery. The interior side surface 333 is positioned opposite the vertical frame shoji side portion 234 of the resin vertical frame portion 23b. The interior side surface 333 forms the side portion of the shoji frame body of the shoji 3. The exterior side surface 331, the vertical frame projection 332, and the exterior side surface 331 form a cross section of the vertical frame 33 that is roughly U-shaped in cross section and opens toward the inner periphery of the frame 30, and the recess formed on the inside of this roughly U-shaped cross section becomes the glass holding portion 33c.

The glass section 34 has glass 341, a grating channel 342, and a setting block 343. The glass 341 is a surface material that seals the opening 101. The glass section 34 has double-glazed glass, with two pieces arranged on the outside and inside of the room with a spacer 344 sandwiched between them. The grating channel 342 is a rubber gasket that holds the two pieces of glass together and has a roughly U-shaped cross section. The grating channel 342 is inserted into the glass holding sections 31c, 32c, and 33c of the frame 30 and holds the end face of the glass 341. The setting block 343 is a soft resin that is placed between the grating channel 342 and the lower frame recess section 322.

The airtight material 6 is a soft resin placed between the frame 2 and the shoji screen 3. The airtight material 6 is molded integrally with the hard resin that forms part of the frame 2. The airtight material 6 is a thin fin member made of soft resin. As shown in Figures 1 and 2, the airtight material 6 includes an upper frame airtight material 61 and a vertical frame airtight material 63. The upper frame airtight material 61 and the vertical frame airtight material 63 each consist of two fin members spaced apart from each other. The upper frame airtight material 61 includes a first upper frame airtight material 611 and a second upper frame airtight material 612. The vertical frame airtight material 63 includes a first vertical frame airtight material 631 and a second vertical frame airtight material 632.

As shown in FIG. 1, the upper frame airtight material 61 is positioned so as to protrude toward the outside from the outdoor surface 213a of the upper frame shoji side portion 213, which constitutes the frame body shoji side portion of the upper frame 21. The upper frame airtight material 61 is molded integrally with the upper frame shoji side portion 213. The first upper frame airtight material 611 extends upward from the outdoor surface of the upper frame shoji side portion 213, i.e., toward the outer periphery of the shoji 3, and abuts against the airtight material abutment portion 314 of the upper frame stile 31. The second upper frame airtight material 612 extends downward from the outdoor surface of the upper frame shoji side portion 213, i.e., toward the inner periphery of the frame body. The second upper frame airtight material 612 is positioned vertically spaced apart from the first upper frame airtight material 611. The upper frame airtight material 61 seals the gap between the upper stile 31 and the upper frame 21.

As shown in Figure 2, the vertical frame airtight material 63 is arranged so as to protrude toward the outside from the vertical frame shoji side portion 234 that constitutes the exterior surface of the vertical frame 23. The vertical frame airtight material 63 is molded integrally with the vertical frame shoji side portion 234. The first vertical frame airtight material 631 extends from the vertical frame shoji side portion 234 toward the outer periphery of the shoji 3 and abuts the interior side surface 333 of the vertical stile 33. The first vertical frame airtight material 631 is at the outermost position in the facing direction of the vertical frame shoji side portion 234, sealing the gap between the vertical stile 33 and the vertical frame 23. The second vertical frame airtight material 632 is arranged spaced apart from the first vertical frame airtight material 631 in the facing direction. The second vertical frame airtight material 632 extends from the vertical frame shoji side portion 234 toward the inner periphery of the frame body 2. The second vertical frame airtight material 632 abuts against the interior side surface 333 of the vertical frame 33 at the innermost side in the viewing direction of the vertical frame shoji side portion 234. The vertical frame airtight material 63 seals the space between the vertical frame 33 and the vertical frame 23.

Alternatively, an airtight material 66 may be placed between the frame body 2 and the shoji screen 3, separate from the frame body 2 and the shoji screen 3, and engages with an engagement portion for placing the airtight material 6 formed on the frame body 2.

The opening and closing mechanism 4 has an operator 41 and a connection part (not shown). The operator 41 is connected to a handle (not shown) and opens and closes the shoji screen 3 by rotating the handle. The connection part is a mechanism that connects the operator 41 to the shoji screen 3. The connection part transmits the rotational movement of the operator 41 to an arm (not shown) that connects the shoji screen 3 to the frame 2, thereby opening and closing the shoji screen 3.

This embodiment provides the following advantages. At least one of the frame 2 of the sliding window 1 and the shoji screen 3 placed within the frame 2 is constructed from a composite sash made of metal and resin. The frame 2 is constructed to include the frame shoji side portion positioned opposite the shoji screen 3, i.e., the outdoor surface 213a of the upper frame shoji side portion 213 of the upper frame 21, and the vertical frame shoji side portion 234 of the vertical frame 23. The shoji screen 3 is constructed to include the shoji frame side portion positioned opposite the frame shoji side portion, i.e., the airtight material abutment portion 314 of the upper frame 31, and the indoor side surface 333 of the vertical frame 33. The upper frame airtight material 61 and vertical frame airtight material 63 are formed on the outdoor surface 213a of the upper frame shoji side portion 213 and the vertical frame shoji side portion 234 of the vertical frame 23 on one side of the frame body 2, and abut against the airtight material abutment portion 314 on the shoji 3 side on the other side, and the indoor side surface 333 of the vertical frame 33. The upper frame airtight material 61 and vertical frame airtight material 63 are integrally molded with the outdoor surface 213a of the resin upper frame shoji side portion 213 and the vertical frame shoji side portion 234 of the vertical frame 23, and are arranged with a gap between them.

Two upper frame airtight materials 61 (first upper frame airtight material 611, second upper frame airtight material 612) and two vertical frame airtight materials 63 (first vertical frame airtight material 631, second vertical frame airtight material 632) are placed with a gap between them on the exterior surface 213a of the upper frame shoji side 213 and the vertical frame shoji side 234, respectively. The resin upper frame shoji side 213 and the upper frame airtight material 61, and the vertical frame shoji side 234 and the vertical frame airtight material 63 are integrally molded. By placing two airtight materials with a gap between them on the shoji-side surface of the frame 2, both the outer and inner peripheries of the frame 2 and the shoji 3 can be sealed, improving airtightness. Because the airtight material 6 is integrally molded with the resin frame 2, there is no need to later attach the airtight material to the frame 2 or the frame 30, reducing processing labor. By arranging multiple airtight materials (first upper frame airtight material 611 and second upper frame airtight material 612, and first vertical frame airtight material 631 and second vertical frame airtight material 632) in close proximity, the cold air blocking effect is increased and insulation performance is also improved.

This disclosure is not limited to the above embodiment, and includes modifications, improvements, etc., within the scope of achieving the objectives of this disclosure. In the above embodiment, the frame 30 of the shoji screen 3 is made entirely of aluminum, and the airtight material 6 is integrally molded into the resin portion of the frame body 2. However, it is sufficient that at least one of the frame body 2 and the shoji screen 3 is made of a composite material, and the frame 30 may be made of aluminum and resin. The airtight material 6 may be integrally molded into the side portion of the shoji screen frame body in the resin portion of the frame 30.

In the above embodiment, an example was described in which the airtight material 6 was molded integrally with the upper frame 31 and the vertical frame 33. The airtight material 6 may be molded integrally with either the frame-frame shoji side portion or the shoji frame side portion on at least one side of the frame 2 or shoji screen 3. The airtight material 6 may also be placed around all four sides of the resin portion of the frame 2 or shoji screen 3. Placing the airtight material 6 around all four sides can further improve airtightness.

In the above embodiment, the upper frame airtight material 61 and the vertical frame airtight material 63 each have two airtight materials spaced apart from each other (first upper frame airtight material 611, second upper frame airtight material 612, and first vertical frame airtight material 631, second vertical frame airtight material 632). However, the number of airtight materials is not limited to two. There may be more than two.

1 Horizontal sliding window (door and window fixture), 2 Frame body, 3 Shoji screen, 6 Airtight material, 213a Outside surface (frame shoji side part), 234 Vertical frame shoji side part (frame shoji side part), 314 Airtight material abutment part (shoji frame side part), 333 Indoor side surface (shoji frame side part)

Claims (2)

In a composite sash fitting, at least one of the frame body and the shoji screen arranged in the frame body is made of metal and resin,
The frame body has a frame body shoji side portion arranged opposite the shoji screen,
The shoji screen has a frame including a shoji frame side portion arranged opposite the frame shoji side portion,
An airtight material is formed on at least one side of the frame body and the shoji screen on either one side of the frame body shoji screen side portion or the shoji screen frame body side portion, and abuts against the other side,
The airtight material arranged on the vertical frame of the frame body or the vertical stile of the frame is integrally molded with the resin frame body shoji side portion or the resin shoji frame body side portion, and is arranged at intervals from each other;
Of the airtight materials placed on the vertical frame or vertical stile , the airtight material placed on the innermost side of the frame body or shoji screen has an airtight portion that extends outer circumferentially and abuts the other side of either the frame body shoji side portion or the shoji frame body side portion, and a fin portion that extends inward from the outer side of the room and the innermost end of the indoor side of the stile. The fitting according to claim 1, wherein the airtight material is arranged around the four periphery of the resin frame or the resin shoji screen.