Doors and windows

Abstract

To provide building materials with improved thermal insulation. [Solution] The joinery 1 has a frame 2 and a sash 3 placed inside the frame 2. The frame 2 is a composite sash made of metal and resin, and the frame portion 22 that constitutes at least one side of the frame 2 has a resin interior projection 224 that is on the interior side and protrudes toward the sash 3 on the interior side, and the exterior end of the interior projection 224 has a hollow structure portion 225 which is hollow inside. It is preferable that the interior projection 224 is positioned opposite the interior side surface of the glass 341 of the sash 3.

Description

Technical Field

[0001] This disclosure relates to fittings.

Background Art

[0002] Conventionally, in fittings such as opening windows, a shoji is arranged on the inner peripheral side of a frame body. As an opening window, there is known one in which a shoji is arranged on the outdoor side in the prospective direction of the frame body, and an indoor frame portion extends from the indoor side of the shoji toward the indoor side in the prospective direction. (For example, refer to Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the outside air temperature is low, cold air may be transmitted from the outer peripheral side of the shoji where the shoji and the frame body contact, and enter the indoor side of the frame portion.

Means for Solving the Problems

[0005] This disclosure relates to a fitting having a frame body and a shoji arranged in the frame body, wherein the frame body is a composite sash composed of metal and resin, and at least one frame portion constituting the frame body has an indoor-side protruding portion made of resin that protrudes toward the shoji on the inner peripheral side and the indoor side rather than the outer edge of the shoji, and an end portion on the outdoor side of the indoor-side protruding portion has a hollow structure portion with a hollow interior.

Brief Description of the Drawings

[0006] [Figure 1] It is a vertical cross-sectional view of the vertical sliding window of this embodiment. [Figure 2] It is a horizontal longitudinal view of the vertical sliding window of this embodiment. [Modes for carrying out the invention]

[0007] 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 located in an opening 101 of a building 100. The vertical sliding window 1 comprises a frame 2, a sash 3, an opening and closing mechanism 4, and a link 5. The vertical sliding window 1 is a composite sash, in which the frame 2 and the sash 3 are made of metal (aluminum) and resin, respectively, and the aluminum and resin parts are joined to each other by fitting or the like.

[0008] In this specification, the visible direction refers to the left-right direction when viewed from the front of the vertical sliding window 1, and the depth direction refers to the interior-exterior direction of the vertical sliding window 1, i.e., the depth direction. The vertical direction refers to the top-bottom direction. The outer perimeter of the frame 2 and the sash 3 refers to the outer edge side of the frame 2 and the sash 3, and the inner perimeter refers to the center side of the frame 2 and the sash 3.

[0009] The frame 2 is a rectangular frame assembled around the substantially rectangular opening 101 in which the vertical sliding window 1 is placed. The frame 2 has an elongated upper frame portion 21, a lower frame portion 22, and a pair of vertical frame portions 23 (see Figure 2).

[0010] The upper frame portion 21 is a profiled material that extends substantially horizontally in the visible direction along the upper edge of the opening 101. The upper frame portion 21 has an aluminum upper frame portion 21a and a resin upper frame portion 21b. The aluminum upper frame portion 21a has an engaging piece 211 that protrudes downward. The resin upper frame portion 21b engages with the engaging piece 211 of the aluminum upper frame portion 21a and covers the lower part of the aluminum upper frame portion 21a on the interior side.

[0011] 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 has an aluminum lower frame portion 22a as a metal frame portion and a resin lower frame portion 22b as a resin frame portion.

[0012] 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-section 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 indoor 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 engaging piece 222f protrudes upward from the upper surface 222a.

[0013] 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 protruding portion 224.

[0014] The upright portion 223 is a plate-like part 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 engaging piece 222f. The opening and closing mechanism 4, which will be described later, is fixed to the upright portion 223.

[0015] 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 with a gap between it and 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 to the upper surface 222a. The indoor projection 224 extends outward from the upper end of the upright section 223.

[0016] The indoor protrusion 224 has a length dimension in the visible direction that is approximately the same as the visible direction of the lower frame portion 22, a length dimension in the depth direction that is approximately half the depth direction of the lower frame portion 22, and a thin, approximately rectangular parallelepiped shape in the thickness direction that is shorter than the length dimension in the depth direction. The indoor protrusion 224 has an upper surface portion 224a, a lower surface portion 224b, an outdoor end surface 224c, an upright portion connecting portion 224d, a hollow structure portion 225, and a screen door fixing portion 226.

[0017] The upper portion 224a and the lower portion 224b are flat plate-shaped parts of the indoor-side protruding portion 224 that are spaced apart vertically and arranged substantially 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 to the outdoor-side end surface 224c, and connects the upper portion 224a and the lower portion 224b, and is continuous with the upright portion 223.

[0018] The hollow structure 225 is the portion of the interior of the indoor protrusion 224 that is formed to be hollow. The hollow structure 225 is formed by being surrounded by the upper surface 224a, lower surface 224b, outdoor end surface 224c, and upright connection portion 224d of the indoor protrusion 224. The hollow structure 225 is formed on the indoor side, sandwiching the outdoor end of the indoor protrusion 224 and the screen door fixing portion 226, which will be described later.

[0019] The screen door fixing portion 226 is a recess formed in the upper surface portion 224a of the indoor side projection 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 that extends in the visible direction. A retaining portion 61 that 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 between the upper surface portion 224a and the lower surface portion 224b, slightly inward from the outdoor side end surface 224c of the indoor side projection portion 224. The retaining portion 61 that holds the upper end of the screen door 6 is positioned on the outdoor side of the resin upper frame portion 21b that faces the indoor side projection portion 224.

[0020] As shown in FIG. 2, the vertical frame portion 23 extends in the vertical direction of the opening portion 101 and is arranged to connect the upper frame portion 21 and the lower frame portion 22 at both ends of the upper frame portion 21 and the lower frame portion 22. 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 projected portion 231 and an engaging portion 232. The projected portion 231 extends along the edge extending in the vertical direction of the opening portion 101 and covers the vertical edge of the opening portion 101 in the projected direction. The engaging portion 232 has engaging pieces 232a and 232b that project in the finding direction toward the inner peripheral side of the frame body 2 from approximately the central portion in the projected direction and the indoor side end portion in the projected portion 231. The resin vertical frame portion 23b is arranged on the indoor side of the frame body 2 and inside the finding direction of the aluminum vertical frame portion 23a. The resin vertical frame portion 23b is engaged and connected to the finding direction end portions of the engaging pieces 232a and 232b of the aluminum vertical frame portion 23a and extends in the projected direction.

[0021] The shoji 3 surrounds the four sides of the glass portion 34 described later and is arranged to be openable and closable on the inner peripheral side of the frame body 2. The shoji 3 has a frame 30 and a glass portion 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 substantially U-shaped cross-section that opens toward the inner peripheral side.

[0022] The upper frame 31 is arranged 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-shaped cross-section. The aluminum upper frame portion 31a has an outdoor side surface 311 and an upper frame projected portion 312. The outdoor side surface 311 extends downward from the vicinity of the outdoor side end of the aluminum upper frame portion 21a. The upper frame projected portion 312 projects in a direction orthogonal to the outdoor side surface 311 and extends in the projected direction on the inner peripheral side of the aluminum upper frame portion 21a. The resin upper frame portion 31b is engaged with the indoor side end of the upper frame projected portion 312 and extends in the vertical direction facing the outdoor side surface 311. The outdoor side surface 311, the upper frame projected portion 312, and the resin upper frame portion 31b form a cross-section of the upper frame 31 that is substantially U-shaped and opens downward. The recess formed inside this substantially U-shaped cross-section becomes the glass holding portion 31c.

[0023] The lower frame 32 is disposed above the lower frame portion 22. The lower frame 32 includes 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-shaped cross-section. The aluminum lower frame portion 32a has an outdoor side surface 321, a projected lower frame portion 322, and a hollow structure portion 324. The outdoor side surface 321 has a flat surface extending upward from near the outdoor end of the lower frame portion 22. The projected lower frame portion 322 protrudes in a direction orthogonal to the outdoor side surface 321 and extends in the projected direction on the inner peripheral side of the lower frame 32. The hollow structure portion 324 is disposed below the projected lower frame portion 322 and is a hollow portion formed along the projected lower frame portion 322. The hollow structure portion 324 is composed of a part of the outdoor side surface 321, the projected lower frame portion 322, a hollow projected piece 3241 facing the projected lower frame portion 322, and a hollow indoor side surface 3242 facing the outdoor side surface 321.

[0024] The resin lower frame portion 32b engages with the hollow indoor side surface 3242 and extends in the vertical direction. The resin lower frame portion 32b is disposed opposite to the resin lower frame portion engaging piece 222f. The resin lower frame portion 32b of the aluminum lower frame portion 22a and the outdoor side surface of the upper indoor portion 222 of the aluminum lower frame portion 22a are in contact with each other via an airtight material 91. The outdoor side surface 321, the projected lower frame portion 322, and the resin lower frame portion 32b of the lower frame 32 form a cross-section of the lower frame 32 that is substantially U-shaped and open upward in cross-section. The recess formed inside this substantially U-shaped cross-section becomes the glass holding portion 32c.

[0025] 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 side surface 331 and a vertical frame depth portion 332. The outdoor side surface 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 side surface 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 side surface 331. The exterior side 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.

[0026] 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 panes of glass. 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 portion 332.

[0027] As shown in Figure 1, the positional relationship between the shoji screen 3 and the indoor projection 224 of the lower frame 22 shows that the indoor projection 224 is positioned opposite the indoor surface of the glass 341. The distance between the outdoor end of the indoor projection 224 and the surface of the glass 341 is 10 mm or less. A semi-sealed space is formed between the indoor projection 224 and the glass 341. The indoor projection 224 is positioned on the inner side of the outer edge of the shoji screen 3. More specifically, the indoor 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, where cold air transmitted from the metal aluminum lower frame portion 22a and aluminum lower frame portion 32a tends to accumulate. However, the indoor projection portion 224 is positioned above the upper surface 222a of the upper indoor portion 222, and is in a semi-sealed positional relationship with the glass 341, which makes it difficult for the accumulated cold air to move.

[0028] The opening / closing mechanism 4 includes an operator 41 and a connecting part (not shown). The operator 41 is connected to a handle (not shown), and the sliding door 3 is opened and closed by rotating the handle. 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 part 5 that connects the sliding door 3 and the frame 2, thereby opening and closing the sliding door 3.

[0029] The link section 5 is a member 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 frame 31, between the lower frame section 22 and the lower frame 32, and between the vertical frame section 23 and the vertical frame 33. The link section 5 moves the sliding door 3 in the depth direction of the frame 2 by operating the opening and closing mechanism 4.

[0030] This embodiment provides the following effects. In a vertical sliding window 1 having a frame 2 and a sash 3 placed inside 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 that is hollow inside. 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.

[0031] In this embodiment, the indoor protrusion 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 protrusion 224, and the resin material with a hollow interior does not easily conduct heat. By positioning the indoor protrusion 224 opposite the indoor surface of the glass 341, a semi-sealed space is formed between the glass 341 and the indoor protrusion 224. This makes it easier to block cold air transmitted from the outside of the glass 341. Therefore, the thermal insulation performance is improved.

[0032] According to this embodiment, the lower frame portion 22 is composed of a metal aluminum lower frame portion 22a arranged on the outer circumference side of the frame body 2, and a resin lower frame portion 22b arranged on the inner circumference side of the aluminum lower frame portion 22a. The indoor side projection portion 224 is arranged 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 in the inner circumference direction of the lower frame portion 22. As a result, the indoor side projection portion 224 is positioned to cover the cold air that accumulates 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 that extends in the depth direction of the resin lower frame portion 22b. Thus, the thermal insulation performance is improved.

[0033] This disclosure is not limited to the embodiments described above, and any modifications, improvements, etc., that can achieve the objectives of this disclosure are included. An example in which the indoor projection 224 is formed on the lower frame 22 has been described. The indoor projection may also be provided on the upper frame 21 and the vertical frame 23. The indoor projection only needs to be formed on at least one side of the frame 2, and may be provided on two sides, three sides, or all four sides. [Explanation of symbols]

[0034] 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 protruding part, 225 Hollow structure, 341 Glass

Claims

1. In a building fixture having a frame and a sliding door placed inside the frame, The aforementioned frame is a composite sash made of metal and resin. The frame portion forming at least one side of the frame has a resin indoor projection that protrudes toward the shoji screen on the inner circumference side and on the indoor side, relative to the outer edge of the shoji screen. The exterior end of the interior protrusion has a hollow structure inside, which is a type of joinery.

2. The interior protrusion is positioned opposite the interior surface of the glass of the shoji screen, as described in claim 1.

3. The frame portion comprises a metal frame portion made of metal and positioned on the outer circumference of the frame body, It has a resin frame portion made of resin that is positioned on the inner circumference side of the metal frame portion, The interior protruding portion extends in the depth direction of the resin frame portion, and extends from the depth surface of the metal frame portion in the inner circumferential direction of the frame body, with a gap between them, so as to face the depth surface of the metal frame portion, according to claim 1 or 2.

4. The interior protrusion is provided on all four sides of the frame, as described in any one of claims 1 to 3.

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