JP7853464B2 - Doors and windows - Google Patents

Description

This disclosure relates to building fixtures.

Conventionally, in window frames such as casement windows, the shoji screen is positioned on the inner circumference of the frame. A known type of casement window is one in which the shoji screen is positioned on the exterior side of the frame in the depth direction, and the interior frame extends from the interior side of the shoji screen toward the interior side in the depth direction. (See, for example, Patent Document 1).

Japanese Patent Publication No. 2018-199918

When the outside temperature is low, cold air can be transmitted from the outer edge of the shoji screen where it meets the frame, and enter the interior side of the frame.

This disclosure relates to a joinery having a frame and a sliding door disposed within the frame, wherein the frame is a composite sash made of metal and resin, and at least one side of the frame has a resin interior projection that protrudes toward the sliding door on the interior side and inward from the outer edge of the sliding door, and the exterior end of the interior projection has a hollow structure with a hollow interior.

This is a vertical cross-sectional view of the vertical sliding window of this embodiment. This is a horizontal and vertical view of the vertical sliding window of this embodiment.

The embodiments of the present invention will now be described in detail with reference to the drawings. The joinery of this embodiment is a vertical sliding window 1 positioned in an opening 101 of a building 100. The vertical sliding window 1 comprises a frame 2, a sash 3, an opening/closing mechanism 4, and a link section 5. The vertical sliding window 1 is a composite sash, with the frame 2 and sash 3 each composed of aluminum and resin, respectively, and the aluminum and resin parts joined together by fitting or other means.

In this specification, "visible direction" refers to the left-right direction when viewed from the front of the vertical sliding window 1, and "depth direction" refers to the interior-exterior direction of the vertical sliding window 1, i.e., the depth direction. "Vertical direction" refers to the top-bottom direction. "Outer perimeter side of the frame 2 and sash 3" refers to the outer edge side of the frame 2 and sash 3, and "inner perimeter side" refers to the center side of the frame 2 and sash 3.

The frame 2 is a rectangular frame assembled around the approximately rectangular opening 101 in which the vertical sliding window 1 is placed. The frame 2 has a long upper frame portion 21, a lower frame portion 22, and a pair of vertical frame portions 23 (see Figure 2).

The upper frame portion 21 is a molded material positioned to extend substantially horizontally in the visible direction along the upper edge of the opening 101. The upper frame portion 21 comprises an aluminum upper frame portion 21a and a resin upper frame portion 21b. The aluminum upper frame portion 21a has an engaging piece 211 projecting downward. The resin upper frame portion 21b engages with the engaging piece 211 of the aluminum upper frame portion 21a and covers the lower interior side of the aluminum upper frame portion 21a.

The lower frame portion 22 is a profiled material that extends substantially horizontally in the visible direction along the lower edge of the opening 101. The lower frame portion 22 comprises an aluminum lower frame portion 22a, which is a metal frame portion, and a resin lower frame portion 22b, which is a resin frame portion.

The aluminum lower frame portion 22a is an aluminum profile extending along the visible direction and is positioned below the lower frame portion 22, i.e., on the outer circumference side 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 step portion 221 and an indoor upper step portion 222. The outdoor lower step portion 221 is positioned on the outdoor side of the lower frame portion 22 and on the outer circumference side of the frame body 2. The outdoor lower step portion 221 is formed with a hollow structure in cross-sectional view and is positioned to protrude to the outdoor side from the opening 101. The outdoor lower step portion 221 has a flat upper surface 221a. The indoor upper step portion 222 is positioned more indoors than the outdoor lower step portion 221 and is fixed to the building frame 100. The indoor upper step portion 222 has an upper surface 222a as a visible surface and a resin lower frame portion engaging piece 222f. The upper surface 222a of the indoor upper section 222 is located above the upper surface 221a of the outdoor lower section 221. 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, that is, on the inner circumference side of the aluminum lower frame portion 22a. The resin lower frame portion 22b is formed in a roughly L-shape in cross-section and has an upright portion 223 and an indoor-facing projection portion 224.

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

The indoor projection 224 protrudes from the indoor side of the lower frame 22 toward the shoji screen 3, which will be described later. The indoor projection 224 is positioned at a distance from the upper surface 222a of the indoor upper section 222a of the aluminum lower frame 22a, in the inner circumferential direction of the frame 2, i.e., upward, and extends opposite the upper surface 222a. The indoor projection 224 extends from the upper end of the upright section 223 toward the outdoor side.

The indoor projection 224 has a length in the visible direction that is approximately the same as the visible direction of the lower frame 22, a length in the depth direction that is approximately half the depth direction of the lower frame 22, and a thin, approximately rectangular parallelepiped shape with a thickness shorter than the depth direction. The indoor projection 224 includes an upper surface 224a, a lower surface 224b, an outdoor end surface 224c, an upright connection portion 224d, a hollow structure portion 225, and a screen door fixing portion 226.

The upper portion 224a and the lower portion 224b are flat, plate-like parts of the indoor-side protruding portion 224, spaced apart and arranged approximately parallel to each other. The outdoor-side end surface 224c is the surface that connects the outdoor-side ends of the upper portion 224a and the lower portion 224b in the vertical direction. The upright portion connection portion 224d is located on the side opposite the outdoor-side end surface 224c, connecting the upper portion 224a and the lower portion 224b and continuing to the upright portion 223.

The hollow structure 225 is the portion of the indoor-side projection 224 where the interior is hollow. The hollow structure 225 is formed by being surrounded by the upper surface 224a, lower surface 224b, outdoor-side end surface 224c, and upright connection portion 224d of the indoor-side projection 224. The hollow structure 225 is formed on the indoor side, sandwiching the outdoor-side end of the indoor-side projection 224 and the screen door fixing portion 226, which will be described later.

The screen door fixing portion 226 is a recess formed in the upper surface portion 224a of the indoor-side protruding portion 224. The screen door fixing portion 226 is formed on the indoor side of the outdoor-side end surface 224c and is a groove extending in the visible direction. A retaining portion 61, which holds the outer circumference of the screen door 6, is inserted into the screen door fixing portion 226. The screen door fixing portion 226 is positioned slightly inward from the outdoor-side end surface 224c of the indoor-side protruding portion 224, between the upper surface portion 224a and the lower surface portion 224b. The retaining portion 61, which holds the upper end of the screen door 6, is positioned on the outdoor side of the resin upper frame portion 21b facing the indoor-side protruding portion 224.

As shown in Figure 2, the vertical frame portion 23 extends vertically across the opening 101 and is positioned to connect the upper frame portion 21 and the lower frame portion 22 at both ends. The vertical frame portion 23 has an aluminum vertical frame portion 23a and a resin vertical frame portion 23b. The aluminum vertical frame portion 23a has a recessed portion 231 and an engaging portion 232. The recessed portion 231 follows the edge of the opening 101 that extends vertically and covers the vertical edge of the opening 101 in the recessed direction. The engaging portion 232 has engaging pieces 232a and 232b that project in the visible direction toward the inner circumference of the frame body 2 from approximately the center of the recessed portion 231 and from the indoor side end, respectively. The resin vertical frame portion 23b is positioned on the indoor side of the frame body 2, inside the aluminum vertical frame portion 23a in the visible direction. The resin vertical frame portion 23b is connected to the visible ends of the engaging pieces 232a and 232b of the aluminum vertical frame portion 23a by engaging with them, and extends in the depth direction.

The shoji screen 3 surrounds the four sides of the glass section 34 (described later) and is positioned on the inner side of the frame 2 so as to be openable and closable. The shoji screen 3 comprises a frame 30 and a glass section 34. The frame 30 has a long upper frame 31, a lower frame 32, and a pair of vertical frames 33. The frame 30 is formed in a roughly U-shape in cross-section, opening towards the inner side.

The upper frame 31 is positioned below the upper frame portion 21. The upper frame 31 has an aluminum upper frame portion 31a, a resin upper frame portion 31b, and a glass holding portion 31c. The aluminum upper frame portion 31a is formed in a substantially T-shape in cross-section. The aluminum upper frame portion 31a has an outdoor side surface 311 and an upper frame depth portion 312. The outdoor side surface 311 extends downward from near the outdoor end of the aluminum upper frame portion 21a. The upper frame depth portion 312 protrudes in a direction perpendicular to the outdoor side surface 311 and extends in the depth direction on the inner circumference side of the aluminum upper frame portion 21a. The resin upper frame portion 31b engages with the indoor end of the upper frame depth portion 312 and extends vertically opposite the outdoor side surface 311. The exterior side surface 311, the upper frame recess 312, and the resin upper frame portion 31b form a cross-section of the upper frame 31 that opens downwards and has a roughly U-shape in cross-sectional view. The recess formed on the inside of this roughly U-shaped cross-section becomes the glass holding portion 31c.

The lower frame 32 is positioned above the lower frame portion 22. The lower frame 32 has an aluminum lower frame portion 32a, a resin lower frame portion 32b, and a glass holding portion 32c. The aluminum lower frame portion 32a is formed in a substantially T-shape in cross-section. The aluminum lower frame portion 32a has an outdoor surface 321, a lower frame depth portion 322, and a hollow structure portion 324. The outdoor surface 321 has a flat surface that extends upward from near the outdoor end of the lower frame portion 22. The lower frame depth portion 322 protrudes in a direction perpendicular to the outdoor surface 321 and extends in the depth direction on the inner circumference side of the lower frame 32. The hollow structure portion 324 is positioned below the lower frame depth portion 322 and is a hollow portion formed along the lower frame depth portion 322. The hollow structure 324 is composed of a portion of the exterior surface 321, the lower frame recess 322, the hollow recess piece 3241 facing the lower frame recess 322, and the hollow interior surface 3242 facing the exterior surface 321.

The resin lower frame portion 32b engages with the hollow interior side surface 3242 and extends vertically. The resin lower frame portion 32b is positioned opposite the resin lower frame engaging piece 222f. The resin lower frame portion 32b of the aluminum lower frame portion 22a and the exterior surface of the upper interior portion 222 of the aluminum lower frame portion 22a are in contact via the airtight seal 91. The exterior side surface 321 of the lower frame 32, the lower frame recess 322, and the resin lower frame portion 32b form a cross-section of the lower frame 32 that opens upwards and has a roughly U-shape in cross-sectional view. The recess formed on the inside of this roughly U-shaped cross-section becomes the glass holding portion 32c.

The vertical frame 33 is positioned on the inner circumference side of the vertical frame portion 23. The vertical frame 33 has an aluminum vertical frame portion 33a, a resin vertical frame portion 33b, and a glass holding portion 33c. The aluminum vertical frame portion 33a has an outdoor surface portion 331 and a vertical frame depth portion 332. The outdoor surface portion 331 extends in the visible direction from the inner circumference side of the outdoor end of the aluminum vertical frame portion 23a. The vertical frame depth portion 332 extends in the depth direction from the outdoor surface portion 331. The resin vertical frame portion 33b engages with the indoor end of the vertical frame depth portion 332 and extends in the visible direction opposite to the outdoor surface portion 331. The exterior surface 331, the vertical frame recess 332, and the resin vertical frame portion 33b form a cross-section of the vertical frame 33 that opens toward the inner circumference of the frame 30, with a roughly U-shape in cross-sectional view. The recess formed on the inside of this roughly U-shaped cross-section becomes the glass holding portion 33c.

The glass section 34 comprises a glass pane 341, a grating channel 342, and a setting block 343. The glass pane 341 is a facing material that closes the opening 101. The glass section 34 has double-glazed glass, with two panes arranged on the exterior and interior sides with a spacer 344 in between. The grating channel 342 is a rubber packing with a roughly U-shaped cross-section that holds the two glass panes. The grating channel 342 is inserted into the glass holding portions 31c, 32c, and 33c of the frame 30 and holds the end faces of the glass pane 341. The setting block 343 is a soft resin placed between the grating channel 342 and the vertical frame recess 332.

As shown in Figure 1, the positional relationship between the shoji screen 3 and the indoor-side projection 224 of the lower frame 22 is such that the indoor-side projection 224 is positioned opposite the indoor-side surface of the glass 341. The distance between the outdoor-side end of the indoor-side projection 224 and the surface of the glass 341 is 10 mm or less. A semi-sealed space is formed between the indoor-side projection 224 and the glass 341. The indoor-side projection 224 is positioned on the inner side of the outer edge of the shoji screen 3. More specifically, the indoor-side projection 224 is positioned on the inner side of the outer edge of the glass 341. The resin lower frame portion 32b, the upper surface 222a of the upper indoor portion 222 of the aluminum lower frame portion 22a, and the upright portion 223 of the resin lower frame portion 32b form a roughly U-shaped space in cross-section with an opening at the top. Cold air transmitted from the metal aluminum lower frame portion 22a and aluminum lower frame portion 32a tends to accumulate in this space. However, the indoor projection portion 224 is positioned above the upper surface 222a of the upper indoor portion 222, creating a semi-sealed positional relationship with the glass 341, which makes it difficult for the accumulated cold air to move.

The opening/closing mechanism 4 comprises an operator 41 and a connecting part (not shown). The operator 41 is connected to a handle (not shown), and rotating the handle opens and closes the sliding door 3. The connecting part is a mechanism that connects the operator 41 and the sliding door 3. The connecting part transmits the rotational movement of the operator 41 to a link 5 connecting the sliding door 3 and the frame 2, thereby opening and closing the sliding door 3.

The link section 5 is a component that connects the frame 2 and the sliding door 3, and is composed of an arm. As shown in Figure 1, the link section 5 is positioned between the upper frame section 21 and the upper rail 31, between the lower frame section 22 and the lower rail 32, and between the vertical frame section 23 and the vertical rail 33. The link section 5 moves the sliding door 3 in the depth direction of the frame 2 through the operation of the opening and closing mechanism 4.

This embodiment provides the following effects. In a vertical sliding window 1 having a frame 2 and a sash 3 disposed within the frame 2, the frame 2 is made of a composite sash made of metal and resin. The lower frame portion 22, which constitutes at least one side of the frame 2, is made to include a resin indoor projection portion 224 that protrudes toward the sash 3 on the indoor side, which is on the inner circumference side of the outer edge of the sash 3. The outdoor end of the indoor projection portion 224 is made to include a hollow structure portion 225 with a hollow interior. Since metal has a higher thermal conductivity than resin, cold air is easily transmitted through metal when the outside temperature is low. However, because the resin indoor projection portion 224 extends in the depth direction on the indoor side, which is on the inner circumference side of the outer edge of the sash 3, the indoor projection portion 224 acts like a lid. This makes it easier to block cold air from entering the room. In particular, by providing a hollow structure 225 at the outdoor end of the indoor protrusion 224, cold air is less likely to pass through the indoor protrusion 224, further reducing the transmission of cold air. Therefore, the thermal insulation performance of the vertical sliding window 1 is improved.

According to this embodiment, the indoor projection 224 is positioned opposite the indoor surface of the glass 341 of the shoji screen 3. A hollow structure 325 is formed at the outdoor end of the indoor projection 224. The resin material, with its hollow interior, is a poor conductor of heat. By positioning the indoor projection 224 opposite the indoor surface of the glass 341, a semi-sealed space is formed between the glass 341 and the indoor projection 224. This makes it easier to block cold air from the outside of the glass 341. Therefore, the thermal insulation performance is improved.

According to this embodiment, the lower frame portion 22 is composed of a metal aluminum lower frame portion 22a positioned on the outer circumference of the frame body 2, and a resin lower frame portion 22b positioned on the inner circumference of the aluminum lower frame portion 22a. The indoor side projection portion 224 is positioned to extend in the depth direction of the resin lower frame portion 22b, and is positioned to extend opposite the upper surface 221a of the outdoor side lower portion 221a of the aluminum lower frame portion 22a, with a gap between it and the inner circumference of the lower frame portion 22. This arrangement allows the indoor side projection portion 224 to act as a cover for cold air accumulating between the upper surface 222a of the outdoor side lower portion 221a of the aluminum lower frame portion 22a and the indoor side projection portion 224 extending in the depth direction of the resin lower frame portion 22b. Therefore, the thermal insulation performance is improved.

This disclosure is not limited to the embodiments described above, and modifications, improvements, etc., to the extent that they can achieve the objectives of this disclosure are included. An example in which the indoor projection 224 is formed on the lower frame portion 22 has been described. The indoor projection may also be provided on the upper frame portion 21 and the vertical frame portion 23. The indoor projection only needs to be formed on at least one side of the frame body 2, and may be provided on two sides, three sides, or all four sides.

1. Door/window, 2. Frame, 3. Sash, 22. Lower frame (frame), 22a. Aluminum lower frame (metal frame), 22b. Resin lower frame (resin frame), 224. Indoor side projection, 225. Hollow structure, 341. Glass

Claims (4)

In a building fixture having a frame, a sliding screen placed inside the frame , and a screen door placed on the interior side of the sliding screen ,
The frame comprises a metal frame portion and a resin frame portion .
The aforementioned shoji screen has a frame and a facing material,
The resin frame portion that constitutes at least one side of the frame body has an upright portion that rises inward from the metal frame portion, and an indoor projection portion that protrudes from the inner end of the upright portion toward the shoji screen on the indoor side, which is further inward than the outer edge of the facing material .
The indoor protruding portion has a hollow structure portion, a screen door fixing portion that is arranged continuously with the hollow structure portion on the outdoor side of the hollow structure portion, and an extension portion that is arranged on the outdoor side of the screen door fixing portion.
A joinery piece in which the hollow structure, the screen door fixing part, and the extension part are integrally formed . The frame has an aluminum frame portion and a resin frame portion.
The joinery according to claim 1 , wherein the resin frame portion is arranged to overlap with the upright portion in the depth direction . The window frame according to claim 1 or 2, wherein the screen door fixing portion is a recess formed on the upper surface of the indoor side protruding portion and extending in the visible direction . The interior protrusion is provided on the lower frame of the frame, as described in any one of claims 1 to 3.