Fixture

Abstract

To provide a fixture capable of improving the thermal insulation property.SOLUTION: A fixture 1 includes a frame 2 and a sash 3 placed in the frame 2. The frame 2 is a composite sash composed of metal and resin. A frame part 22 constituting at least one side of the frame 2 has a resin indoor-side protrusion 224 that protrudes toward the sash 3 within the outer edge of the sash 3 and inside the room. The outdoor-side end of the indoor-side protrusion 224 has a hollow structure 225 with a hollow interior. The indoor-side protrusion 224 is preferably placed facing the indoor surface of glass 341 of the sash 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to building materials. [Background technology]

[0002] Conventionally, in fittings such as casement windows, a shoji screen is arranged on the inner periphery of a frame body. A known casement window is one in which the shoji screen is arranged on the outside of the frame body in the projection direction, and the frame part on the inside of the window extends from the inside of the shoji screen toward the inside of the window in the projection direction. (See, for example, Patent Document 1.) [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-199918 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the outside temperature is low, cold air can be transmitted from the outer periphery of the shoji screen where it meets the frame and enter the interior side of the frame. [Means for solving the problem]

[0005] The present disclosure relates to a fitting having a frame body and a shoji screen placed within the frame body, wherein the frame body is a composite sash made of metal and resin, and a frame portion constituting at least one side of the frame body has an indoor side protrusion made of resin that protrudes toward the shoji screen on the inner side and on the indoor side of the inner edge of the shoji screen, and an outdoor side end of the indoor side protrusion has a hollow structure portion with a hollow interior. [Brief description of the drawings]

[0006] [Figure 1] FIG. 2 is a vertical cross-sectional view of the vertical sliding window of the present embodiment. [Diagram 2] FIG. 2 is a horizontal-vertical cross-sectional view of the vertical sliding window of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The fitting of this embodiment is a vertical sliding window 1 arranged in an opening 101 of a building 100. The vertical sliding window 1 has a frame 2, a paper screen 3, an opening / closing mechanism 4, and a link section 5. The vertical sliding window 1 is a composite sash, and the frame 2 and the paper screen 3 are each made of aluminum metal and resin, and the aluminum part and the resin part 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 "anticipation direction" refers to the indoor / outdoor direction of the vertical 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 screen 3 refers to the outer edge side of the frame 2 and the screen 3, and the "inner periphery" refers to the center side of the frame 2 and the screen 3.

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

[0010] Upper frame portion 21 is a molding arranged to extend approximately horizontally in the front direction along the upper edge of opening 101. Upper frame portion 21 has aluminum upper frame portion 21a and resin upper frame portion 21b. Aluminum upper frame portion 21a has engagement pieces 211 that protrude downward. Resin upper frame portion 21b engages with engagement pieces 211 of aluminum upper frame portion 21a and covers the lower side of aluminum upper frame portion 21a on the indoor side.

[0011] The lower frame portion 22 is a mold member arranged to extend substantially horizontally in the front 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 made of metal, and a resin lower frame portion 22b as a resin frame portion made of resin.

[0012] The aluminum lower frame portion 22a is an aluminum molding extending along the front direction, and is disposed below the lower frame portion 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 side and the outdoor side, and has an outdoor side lower stage portion 221 and an indoor side upper stage portion 222. The outdoor side lower stage portion 221 is disposed on the outdoor side of the lower frame portion 22 and on the outer periphery of the frame body 2. The outdoor side lower stage portion 221 is formed with a hollow structure portion in a cross-sectional view, and is disposed protruding from the opening portion 101 to the outdoor side. The outdoor side lower stage portion 221 has a flat upper surface 221a. The indoor side upper stage portion 222 is disposed on the indoor side of the outdoor side lower stage portion 221, and is fixed to the building frame 100. The indoor side upper stage portion 222 has an upper surface 222a as a prospective surface, and a resin lower frame portion engagement piece 222f. An upper surface 222a of the indoor side upper stage portion 222 is located higher than an upper surface 221a of the outdoor side lower stage portion 221. The resin lower frame portion engagement piece 222f protrudes upward from the upper surface 222a.

[0013] Resin lower frame portion 22b is disposed above aluminum lower frame portion 22a, i.e., on the inner peripheral side of aluminum lower frame portion 22a. Resin lower frame portion 22b is formed in a substantially L-shape in cross section and has upright portion 223 and indoor side protruding portion 224.

[0014] The rising portion 223 is a plate-shaped portion rising upward from the upper surface 222a of the indoor side upper stage portion 222 of the aluminum lower frame portion 22a. The rising portion 223 engages with the resin lower frame portion engaging piece 222f. The opening / closing mechanism 4 described later is fixed to the rising portion 223.

[0015] The indoor protrusion 224 protrudes toward the shoji screen 3 side, which will be described later, on the indoor side of the lower frame part 22. The indoor protrusion 224 is disposed in the inner circumferential direction of the frame body 2, i.e., upward, from the upper surface 222a of the indoor side upper stage part 222 of the aluminum lower frame part 22a, with a space therebetween, and extends to face the upper surface 222a. The indoor protrusion 224 extends from the upper end of the standing part 223 to the outdoor side.

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

[0017] The upper surface portion 224a and the lower surface portion 224b are flat plate-like portions arranged substantially parallel to each other with a gap therebetween in the vertical direction of the indoor side protruding portion 224. The outdoor side end surface 224c is a surface that connects the outdoor side ends of the upper surface portion 224a and the lower surface portion 224b in the vertical direction. The standing portion connection portion 224d is located on the side opposite to the outdoor side end surface 224c, connects the upper surface portion 224a and the lower surface portion 224b, and is continuous with the standing portion 223.

[0018] The hollow structural portion 225 is a hollow portion formed inside the indoor side protruding portion 224. The hollow structural portion 225 is formed surrounded by an upper surface portion 224a, a lower surface portion 224b, an outdoor end surface 224c, and an upright portion connection portion 224d of the indoor side protruding portion 224. The hollow structural portion 225 is formed on the indoor side, sandwiching the outdoor end side of the indoor side protruding portion 224 and a screen fixing portion 226 described later.

[0019] The screen fixing portion 226 is a recess formed on the upper surface 224a of the indoor protruding portion 224. The screen fixing portion 226 is a groove formed on the indoor side of the outdoor end surface 224c and extending in the viewing direction. A retaining portion 61 that holds the outer periphery of the screen 6 is inserted into the screen fixing portion 226. The screen fixing portion 226 is located between the upper surface 224a and the lower surface 224b, at a position slightly toward the indoor side from the outdoor end surface 224c of the indoor protruding portion 224. The retaining portion 61 that holds the upper end side of the screen 6 is located on the outdoor side of the resin upper frame portion 21b facing the indoor protruding portion 224.

[0020] As shown in FIG. 2, the vertical frame portion 23 extends in the vertical direction of the opening 101 and is arranged so as 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 projection portion 231 and an engagement portion 232. The projection portion 231 is aligned with the edge extending in the vertical direction of the opening 101 and covers the edge of the upper and lower directions of the opening 101 in the projection direction. The engagement portion 232 has engagement pieces 232a, 232b that protrude in the projection direction toward the inner periphery of the frame body 2 from the approximate center of the projection portion 231 in the projection direction and from the room side end. The resin vertical frame portion 23b is arranged on the room side of the frame body 2, on the inside of the aluminum vertical frame portion 23a in the projection direction. The resin vertical frame portion 23b engages with and is connected to the ends in the front direction of the engagement pieces 232a, 232b of the aluminum vertical frame portion 23a, and extends in the front direction.

[0021] The shoji screen 3 surrounds the glass portion 34 (described later) on all four sides and is disposed on the inner periphery of the frame body 2 so as to be able to be opened and closed. The shoji screen 3 has a frame 30 and a glass portion 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-shape in cross section, opening toward the inner periphery.

[0022] The upper frame 31 is disposed 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 generally T-shape in cross section. The aluminum upper frame portion 31a has an exterior side surface 311 and an upper frame projection portion 312. The exterior side surface 311 extends downward from near the exterior end of the aluminum upper frame portion 21a. The upper frame projection portion 312 protrudes in a direction perpendicular to the exterior side surface 311 and extends in the projection direction on the inner periphery side of the aluminum upper frame portion 21a. The resin upper frame portion 31b engages with the interior end of the upper frame projection portion 312 and extends in the vertical direction opposite the exterior side surface 311. The exterior side surface 311, the upper frame projection portion 312, and the resin upper frame portion 31b form a cross section of the upper frame 31 that is generally U-shaped and opens downward. The recess formed on the inside of this generally 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 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 generally T-shape in cross section. The aluminum lower frame portion 32a has an exterior side surface 321, a lower frame projection portion 322, and a hollow structure portion 324. The exterior side surface 321 has a flat surface extending upward from near the exterior end of the lower frame portion 22. The lower frame projection portion 322 protrudes in a direction perpendicular to the exterior side surface 321 and extends in the projection direction on the inner periphery side of the lower frame 32. The hollow structure portion 324 is disposed below the lower frame projection portion 322 and is a hollow portion formed along the lower frame projection portion 322. The hollow structural portion 324 is composed of a part of the exterior side surface 321, a bottom frame projection portion 322, a hollow projection piece 3241 facing the bottom frame projection portion 322, and a hollow interior side surface 3242 facing the exterior side surface 321.

[0024] The resin bottom frame portion 32b engages with the hollow room interior side surface 3242 and extends in the vertical direction. The resin bottom frame portion 32b is disposed facing the resin bottom frame portion engagement piece 222f. The resin bottom frame portion 32b of the aluminum bottom frame portion 22a and the exterior surface of the interior upper stage portion 222 of the aluminum bottom frame portion 22a are in contact via an airtight material 91. The exterior side surface 321 of the bottom frame 32, the bottom frame projection portion 322, and the resin bottom frame portion 32b form a cross section of the bottom frame 32 that is generally U-shaped in cross section and opens upward. The recess formed on the inside of this generally U-shaped cross section becomes the glass holding portion 32c.

[0025] The vertical frame portion 33 is disposed on the inner periphery side of the vertical frame portion 23. The vertical frame portion 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 exterior side surface 331 and a vertical frame projection portion 332. The exterior side surface 331 extends in the front direction from the inner periphery side of the exterior end portion of the aluminum vertical frame portion 23a. The vertical frame projection portion 332 extends in the front direction from the exterior side surface 331. The resin vertical frame portion 33b engages with the interior side end portion of the vertical frame projection portion 332 and extends in the front direction facing the exterior side surface 331. The exterior side surface 331, the vertical frame projection portion 332, and the resin vertical frame portion 33b form a cross section of the vertical frame 33 that is generally U-shaped in cross section and opens toward the inner periphery side of the frame 30. The recess formed on the inside of this generally U-shaped cross section becomes the glass holding portion 33c.

[0026] The glass section 34 has glass 341, a grating channel 342, and a setting block 343. The glass 341 is a surface material that closes the opening 101. The glass section 34 has double-glazed glass, and two pieces are arranged on the outside and inside of the room with a spacer 344 between them. The grating channel 342 is a rubber packing that holds the two pieces of glass and has a roughly U-shaped cross section. The grating channel 342 is inserted into the glass holding parts 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 arranged between the grating channel 342 and the vertical frame projection part 332.

[0027] As shown in FIG. 1, looking at the positional relationship between the shoji screen 3 and the indoor protrusion 224 of the lower frame portion 22, the indoor protrusion 224 is positioned opposite the indoor surface of the glass 341. The distance between the outdoor end of the indoor protrusion 224 and the surface of the glass 341 is 10 mm or less. A semi-closed space is formed between the indoor protrusion 224 and the glass 341. The indoor protrusion 224 is positioned on the inner side of the outer edge of the shoji screen 3. More specifically, the indoor protrusion 224 is positioned on the inner side of the outer edge side of the glass 341. Resin lower frame portion 32b, upper surface 222a of indoor side upper stage portion 222 of aluminum lower frame portion 22a, and upright portion 223 of resin lower frame portion 32b form a space that is roughly U-shaped in cross section and is open at the top, and cold air transmitted from metal aluminum lower frame portion 22a and aluminum lower frame portion 32a tends to accumulate. However, indoor side protrusion portion 224 is located above upper surface 222a of indoor side upper stage portion 222, and is in a semi-closed positional relationship with glass 341, making it difficult for the accumulated cold air to move.

[0028] 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 and the shoji screen 3. The connection part transmits the rotational movement of the operator 41 to the link part 5 that connects the shoji screen 3 and the frame body 2, thereby opening and closing the shoji screen 3.

[0029] The link section 5 is a member that connects the frame body 2 and the shoji screen 3, and is composed of an arm. As shown in Fig. 1, the link section 5 is disposed 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 shoji screen 3 in the projection direction of the frame body 2 by operating the opening / closing mechanism 4.

[0030] According to this embodiment, the following effects are achieved. In a vertical sliding window 1 having a frame 2 and a shoji screen 3 arranged inside the frame 2, the frame 2 is made of a composite sash made of metal and resin. The lower frame part 22 that forms at least one side of the frame 2 is made to include a resin indoor protruding part 224 that protrudes toward the shoji screen 3 on the inner periphery side and on the indoor side from the outer edge of the shoji screen 3. The outdoor end of the indoor protruding part 224 is made to include a hollow structure part 225 with a hollow inside. Since metal has a higher thermal conductivity than resin, when the outdoor temperature is low, cold air is easily transmitted through the metal. However, since the resin indoor protruding part 224 extends in the forward direction on the inner periphery side and on the indoor side from the outer edge of the shoji screen 3, the indoor protruding part 224 plays a role like a lid. This makes it easier to block cold air from entering the room. In particular, by providing the hollow structure 225 at the outdoor end of the indoor protruding portion 224, cold air is less likely to pass through the indoor protruding portion 224, making it even more difficult for cold air to be transmitted. Therefore, the thermal insulation of the vertical sliding window 1 is improved.

[0031] According to this embodiment, the indoor protrusion 224 is disposed facing the indoor side 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 formed with a hollow interior does not easily transmit heat. By facing the indoor protrusion 224 to the indoor side surface of the glass 341, a semi-closed space is formed between the glass 341 and the indoor protrusion 224. This makes it easier to block cold air transmitted from outside the glass 341. This improves the insulation performance.

[0032] According to this embodiment, the lower frame portion 22 is configured to include an aluminum lower frame portion 22a made of metal arranged on the outer periphery side of the frame body 2, and a resin lower frame portion 22b made of resin arranged on the inner periphery side of the aluminum lower frame portion 22a. The indoor side protruding portion 224 is arranged to extend in the projection direction of the resin lower frame portion 22b, and is arranged to extend opposite to the upper surface 221a of the outdoor side lower stage portion 221 of the aluminum lower frame portion 22a, with a gap in the inner periphery direction of the lower frame portion 22. As a result, the indoor side protruding portion 224 is arranged to cover the cold air that accumulates between the upper surface 222a of the outdoor side lower stage portion 221 of the aluminum lower frame portion 22a and the indoor side protruding portion 224 extending in the projection direction of the resin lower frame portion 22b. Therefore, the insulation performance is improved.

[0033] The present disclosure is not limited to the above-described embodiment, and modifications, improvements, etc. within the scope of achieving the object of the present disclosure are included in the present disclosure. An example in which the indoor protrusion 224 is formed on the lower frame portion 22 has been described. The indoor protrusion may be provided on the upper frame portion 21 and the vertical frame portion 23. The indoor protrusion may be formed on at least one side of the frame body 2, and may be provided on two or three sides, or on all four sides. [Explanation of symbols]

[0034] 1 Door and window, 2 Frame body, 3 Shoji screen, 22 Lower frame part (frame part), 22a Aluminum lower frame part (metal frame part), 22b Resin lower frame part (resin frame part), 224 Room inside protrusion part, 225 Hollow structural part, 341 Glass

Claims

1. A fitting having a frame body, a shoji screen arranged inside the frame body, and a screen door arranged on the indoor side of the shoji screen, The frame body has a metal frame portion and a resin frame portion, The shoji screen has a frame and a surface material, The resin frame portion constituting at least one side of the frame body has an upright portion that stands from the metal frame portion toward the inner periphery, and an interior protruding portion that protrudes from the inner periphery end of the upright portion toward the shoji side on the inner periphery side and on the interior side of the room, further inward than the outer edge of the surface material; The indoor protrusion has a hollow structural portion, a screen fixing portion arranged on the outdoor side of the hollow structural portion and continuous with the hollow structural portion, and an extension portion arranged on the outdoor side of the screen fixing portion, The hollow structural portion, the screen fixing portion, and the extension portion are integrally formed as a fixture.

2. The frame has an aluminum frame portion and a resin frame portion, The fixture according to claim 1 , wherein the resin frame portion is positioned so as to overlap the upright portion in the projection direction.

3. A fixture as described in claim 1 or 2, wherein the screen fixing portion is a recess formed on the upper surface of the indoor protrusion and extending in the viewing direction.

4. The door fitting according to any one of claims 1 to 3, wherein the indoor protrusion is provided on the lower frame of the frame body.

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