Insulated shoji screens

Abstract

To provide an insulated shoji screen that can reduce the thickness of the wooden retaining piece while also ensuring sufficient panel retention. [Solution] The insulated shoji screen comprises a frame material having an interior member 42 which is a wooden main structural material, a panel 26 held by the frame material, and a reinforcing material 51 which reinforces the interior member 42 which is a main structural material. The interior member 42 is integrally formed with a main body portion 421 provided on the outer circumference side of the panel 26 and a retaining piece portion 423 that protrudes from the main body portion 421 and is positioned on the interior side of the panel 26. The reinforcing material 51 comprises a reinforcing portion 513 which is positioned on the exterior surface of the retaining piece portion 423 and reinforces the retaining piece portion 423, and a fixing portion 511 which is fixed to the main body portion 421.

Description

Technical Field

[0005] , ,

[0004] , , , , , , , , ,

[0001] The present invention relates to a heat-insulating shutter that holds at least the indoor side of a panel with a wooden frame member. [[ID=​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The object of the present invention is to provide a thermal insulation shoji screen that can reduce the thickness of the wooden retaining piece while also ensuring the holding force of the panel. [Means for solving the problem]

[0006] The present invention relates to an insulating shoji screen comprising a frame material having a wooden main structural material, a panel held by the frame material, and a reinforcing material for reinforcing the main structural material, wherein the main structural material is integrally formed with a main body portion provided on the outer periphery side of the panel and a retaining piece portion protruding from the main body portion and positioned on the interior side of the panel, and the reinforcing material comprises a reinforcing portion positioned on the exterior surface of the retaining piece portion or inside the retaining piece portion to reinforce the retaining piece portion, and a fixing portion fixed to the main body portion.

[0007] The present invention relates to an insulating shoji screen comprising a frame material having a wooden main structural material, a panel held by the frame material, and a reinforcing material for reinforcing the main structural material, wherein the main structural material has a first member and a second member which is constructed separately from the first member and is arranged on the interior side of the first member, the first member has a first main body portion provided on the outer periphery side of the panel, the second member is integrally formed with a second main body portion which together with the first main body portion constitutes a main body portion and a retaining piece portion which protrudes from the second main body portion and is arranged on the interior side of the panel, and the reinforcing material comprises a reinforcing portion which is arranged along the exterior surface of the retaining piece portion and reinforces the retaining piece portion, and a fixing portion which is sandwiched between the first member and the second member and adhered to the first member and the second member. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide an insulating shoji screen that can suppress the thickness of the wooden retaining piece while also ensuring the holding force of the panel. [Brief explanation of the drawing]

[0009] [Figure 1] This is a longitudinal cross-sectional view showing a sliding window of the first embodiment. [Figure 2]This is a cross-sectional view showing a sliding window of the first embodiment. [Figure 3] This is a vertical cross-sectional view showing the lower frame of the sliding window sash of the first embodiment. [Figure 4] This is a vertical cross-sectional view showing the lower frame of the sliding window sash of the second embodiment. [Figure 5] This is a vertical cross-sectional view showing the lower frame of the sliding window sash of the third embodiment. [Figure 6] This is a vertical cross-sectional view showing the lower frame of the sliding window sash of the fourth embodiment. [Figure 7] This is a vertical cross-sectional view showing the lower frame of the sliding window sash of the fifth embodiment. [Figure 8] This is a vertical cross-sectional view showing the lower frame of the sliding window sash of the sixth embodiment. [Modes for carrying out the invention]

[0010] [First Embodiment] The first embodiment is a sliding window 1 comprising a window frame 10, an outer sash 20A, and an inner sash 20B, as shown in Figures 1 and 2. Figure 1 is a vertical cross-sectional view showing the midpoint in the left-right direction of the window frame 10, outer sash 20A, and inner sash 20B, and Figure 2 is a horizontal cross-sectional view showing the midpoint in the up-down direction of the window frame 10, outer sash 20A, and inner sash 20B. Note that the left-right direction is the left-right direction in the interior view of the sliding window 1, and is also the sliding direction of the outer sash 20A and inner sash 20B.

[0011] [window frame] The window frame 10 is constructed by framing an upper frame 11, a lower frame 12, and left and right vertical frames 13 and 14. As shown in Figure 1, the upper frame 11 and the lower frame 12 are constructed by connecting aluminum exterior members 111 and 121 and interior members 112 and 122 with synthetic resin insulation members 113 and 123. The exterior members 111, 121 and the interior members 112, 122 are each formed with exterior rails 115, 125 for guiding the exterior sash 20A and interior rails 116, 126 for guiding the interior sash 20B, respectively. Cover materials 117 and 118 made of synthetic resin are attached to the lower surface of the upper frame 11. Cover material 117 is attached across the outer rail 115 and the inner rail 116, and is installed to cover the indoor exposed surface of the upper frame 11 between the outer rail 115 and the inner rail 116. Cover material 118 is installed to cover the indoor exposed surface of the interior component 112. A windbreak plate 119 is attached to cover material 117. Cover materials 127 and 128 made of synthetic resin are attached to the upper surface of the lower frame 12. Cover material 127 is attached to cover the indoor exposed surface between the outer rail 125 and the inner rail 126 of the lower frame 12. Cover material 128 is attached to cover the indoor exposed surface of the interior component 122.

[0012] As shown in Figure 2, the vertical frames 13 and 14 are made of aluminum profiles. The vertical frame 13 has a protruding piece 135 that abuts against the airtight material of the outer sash 20A, and the vertical frame 14 has a protruding piece 145 that abuts against the airtight material of the inner sash 20B. The vertical frame 13 is fitted with synthetic resin cover materials 137 and 138. Cover material 137 is fitted so as to cover the indoor exposed surface of the vertical frame 13 from the protruding piece 135 of the vertical frame 13 to the indoor end of the vertical frame 13. Cover material 138 is fitted to the surface of cover material 137. A synthetic resin cover material 147 is attached to the vertical frame 14. The cover material 147 is attached so as to cover the indoor exposed surface of the vertical frame 14 from the protruding piece 145 of the vertical frame 14 to the indoor end of the vertical frame 14.

[0013] [Shoji] Next, the exterior shoji screen 20A and interior shoji screen 20B, which are the fittings of this embodiment, will be described. The exterior shoji screen 20A comprises horizontal members, an upper frame 21 and a lower frame 22, vertical members, a door-edge frame 23 and an exterior meeting frame 24, and a panel 26 held by these. Similarly, the interior shoji screen 20B comprises horizontal members, an upper frame 21 and a lower frame 22, vertical members, a door-edge frame 23 and an interior meeting frame 25, and a panel 26 held by these. The outer shutter 20A and the inner shutter 20B have the same structure for each shutter other than the outer assembling frame 24 and the inner assembling frame 25, and thus they will be described with the same reference numerals.

[0014] As shown in FIG. 1, the upper frame 21 includes an outdoor member 31 made of an aluminum profile and an indoor member 41 made of wood. The outdoor member 31 includes a substantially plate-shaped outdoor surface portion 311 that is elongated along the left-right direction, and a holding piece portion 312, an engaging piece portion 313, and a fixing piece portion 314 that extend from the indoor surface of the outdoor surface portion 311. The holding piece portion 312 extends from the upper end of the outdoor surface portion 311 to the indoor side and holds an airtight material that abuts against the outer rail 115 or the cover material 117. Each engaging piece portion 313 is formed in an L-shaped cross section and engages with a reinforcing member 51 and the like, which will be described later. The fixing piece portion 314 is fixed to the indoor member 41 with a screw 61.

[0015] [[ID=ll]] As shown in FIG. 1, the indoor member 41 includes a main body portion 41, a guide piece portion 412 that extends upward from the main body portion 41, and a holding piece portion 413 that extends downward from the main body portion 41. The main body portion 411 is a main structural portion with a larger expected dimension compared to the guide piece portion 412 and the holding piece portion 413, and its outdoor surface abuts against the two engaging piece portions 313. The fixing piece portion 314 abuts against the upper surface of the main body portion 411 and is fixed with a screw 61. Further, a reinforcing member 51, which will be described later, is fixed to the panel facing surface of the main body portion 411, that is, the surface facing the gasket 27 that holds the panel 26, with a screw 61. The indoor member 41 may be made of a solid wood material, but is made of LVL (laminated veneer lumber) or glued laminated timber that can stabilize strength and quality. In this embodiment, the indoor member 41 is made of LVL formed by laminating and bonding cut veneers.

[0016] As shown in FIG. 1, the lower frame 22 includes an outdoor member 32 made of an aluminum profile and an indoor member 42 made of wood. The outdoor member 32 has the same configuration as the outdoor member 31, and includes a substantially plate-shaped outdoor surface portion 321 that is elongated along the left-right direction, a holding piece portion 322, an engaging piece portion 323, and a fixing piece portion 324. The retaining piece 322 extends inward from the lower end of the exterior surface 321 and holds the airtight material that abuts against the outer rail 125 and the inner rail 126. Each engaging piece 323 is formed in an L-shape in cross-section. The fixing piece 324 is provided continuously from the retaining piece 322 and is formed in a roughly U-shape in cross-section, and is fixed to the lower surface of the interior member 42 with screws 61.

[0017] As shown in Figure 1, the interior member 42 is made of LVL, similar to the interior member 41. The interior member 42 comprises a main body portion 421, a guide piece portion 422 protruding downward from the main body portion 421, and a retaining piece portion 423 extending upward from the main body portion 421. The main body portion 421 has a larger depth dimension compared to the guide piece portion 422 and the retaining piece portion 423, and its exterior surface abuts against each of the engaging pieces 323. A fixing piece portion 324 abuts against the lower surface of the main body portion 421 and is fixed with screws 61. A reinforcing member 51, which will be described later, is fixed to the upper surface of the main body portion 421 with screws 61.

[0018] As shown in Figure 2, the door frame 23 comprises an exterior member 33 made of aluminum profile and an interior member 43 made of wood. The outdoor member 33 has the same configuration as the outdoor members 31 and 32, and comprises a roughly plate-shaped outdoor surface portion 331 that is elongated in the vertical direction, a retaining piece portion 332, an engaging piece portion 333, and a fixing piece portion 334. The retaining piece 332 extends inward from the outer edge (door edge side) of the exterior surface 331 and holds the airtight material that abuts against the protruding pieces 135 and 145. Each engaging piece 333 is formed in an L-shape in cross-section. The fixing piece 334 extends from the retaining piece 332 and is fixed to the door edge side of the interior member 43 with screws 61.

[0019] The interior member 43, like the interior members 41 and 42, is made of LVL (Laminated Veneer Lumber) formed by laminating and bonding cut veneers. The interior member 43 comprises a main body portion 431, a guide piece portion 432 protruding from the main body portion 431 toward the outer circumference, i.e., toward the vertical frames 13 and 14, and a retaining piece portion 433 extending toward the inner circumference from the main body portion 431. The main body portion 431 is a portion with a larger depth dimension compared to the guide piece portion 432 and the retaining piece portion 433, and its exterior surface abuts against the engaging piece portion 333. A fixing piece portion 334 abuts against the outer circumference surface of the main body portion 431, i.e., the surface facing the vertical frames 13 and 14, and is fixed with a screw 61. A reinforcing member 51 is fixed to the inner circumference surface of the main body portion 431 with a screw 61.

[0020] As shown in Figure 2, the exterior meeting stile 24 comprises an exterior member 34 made of aluminum profile and an interior member 44 made of wood. The outdoor member 34 is formed in a substantially L-shape overall and is a long member oriented in the vertical direction, comprising an outdoor surface portion 341, a side covering portion 342 extending inward from the end of the outdoor surface portion 341, an engaging piece portion 343, a fixing piece portion 344, and a smoke return portion 345 extending from the fixing piece portion 344. The engaging piece 343 extends from the interior surface of the exterior surface 341 and is formed in a substantially L-shape in cross-section. The fixing piece 344 extends from the interior end of the side covering 342 and is arranged diagonally. The smoke return piece 345 has a protruding piece that engages with the smoke return piece 353 of the interior meeting frame 25, and an airtight material that abuts against the exterior surface 351 is attached to the base end of the protruding piece.

[0021] The interior member 44, like the interior members 41, 42, and 43, is made of LVL (Laminated Veneer Lumber) formed by laminating and bonding cut veneers. The interior member 44 comprises a main body portion 441 and a retaining piece portion 443 extending from the main body portion 441 toward the door edge. The main body portion 441 is a portion with a larger depth dimension than the retaining piece portion 443, and its exterior surface abuts against the engaging piece portion 343. The corners of the depth surface and interior surface of the main body portion 441 are inclined surfaces that intersect in the depth direction and the left-right direction, and the fixing piece portion 344 abuts against these inclined surfaces and is fixed with screws 61. In addition, a cover material 349 is attached to the exterior member 34 to conceal the screws 61 that fix the fixing piece portion 344. A reinforcing material 51 is fixed to the inner circumferential surface of the main body portion 441 with screws 61. As shown in Figure 2, a recess opening to the interior is machined into the middle of the interior member 44 in the vertical direction, and a reinforcing member 36 for receiving the crescent lock is placed in this recess. The reinforcing member 36 has a hollow portion that is placed in the recess and a protruding portion that is placed along the interior surface of the retaining piece 443, and is fixed to the interior member 44 with adhesive or double-sided tape. The hollow portion of the reinforcing member 36 and the fixing piece 344 of the exterior member 34 are fixed with screws 61. Furthermore, a crescent lock receiver 37 is fixed to the reinforcing member 36 with screws 63.

[0022] As shown in Figure 2, the interior meeting stile 25 comprises an exterior member 35 made of aluminum profile and an interior member 45 made of wood. The outdoor member 35 is formed in a substantially T-shape in cross-section and comprises an outdoor surface portion 351, a fixing piece portion 352 extending inward from the outdoor surface portion 351, and a smoke return portion 353 extending from the outdoor surface of the outdoor surface portion 351.

[0023] The interior component 45, like the interior components 41, 42, 43, and 44, is made of LVL (Laminated Veneer Lumber) formed by laminating and bonding cut veneers. The interior member 45 comprises a main body portion 451 and a retaining piece portion 453 extending from the main body portion 451 toward the door edge. The main body portion 451 is a portion with a larger depth than the retaining piece portion 453, and an exterior surface portion 351 is fixed to its exterior surface with screws 61. The fixing piece portion 352 and reinforcing material 52 of the exterior member 35 are fixed to the inner circumferential surface of the main body portion 451 with screws 61. Furthermore, a crescent-shaped latch 38 is fixed to the visible surface of the main body 451 with screws 63 and 64.

[0024] To achieve the above configuration, as shown in Figure 1, the upper frame 21 has a groove between the upper end of the outdoor member 31 and the guide piece 412 of the indoor member 41, in which the outer rail 115 and the inner rail 116 are arranged. In addition, the upper frame 21 has a glass retaining groove between the lower end of the outdoor surface portion 311 of the outdoor member 31 and the retaining piece 413 of the indoor member 41, in which the panel 26 is arranged via a gasket 27. In the lower frame 22, a groove is formed between the lower end of the interior member 42 and the guide piece 422 of the interior member 42, in which the outer rail 125 and the inner rail 126 are positioned. In addition, in the lower frame 22, a glass retaining groove is formed between the upper end of the exterior surface portion 321 of the exterior member 32 and the retaining piece 423 of the interior member 42, in which the panel 26 is positioned via a gasket 27.

[0025] As shown in Figure 2, the door frame 23 has grooves formed between the leading edge of the exterior member 33 on the vertical frame 13 and 14 side and the guide piece 432 of the interior member 43, in which the protruding pieces 135 and 145 are positioned. In addition, the door frame 23 has glass retaining grooves formed between the inner circumference end of the exterior surface portion 331 of the exterior member 33 and the retaining piece 433 of the interior member 43, in which the panel 26 is positioned via a gasket 27. In the exterior meeting stile 24, a glass retaining groove is formed between the inner circumferential end of the exterior surface portion 341 of the exterior member 34 and the retaining piece portion 443 of the interior member 44, with the panel 26 positioned via a gasket 27. In the interior meeting stile 25, a glass retaining groove is formed between the inner circumferential end of the exterior surface portion 351 of the exterior member 35 and the retaining piece portion 453 of the interior member 45, with the panel 26 positioned via a gasket 27.

[0026] In the upper frame 21, lower frame 22, door edge frame 23, outer meeting frame 24, and inner meeting frame 25, the wooden interior members 41, 42, 43, 44, and 45, which occupy a large area in the cross section perpendicular to the longitudinal direction, function as the main structural members. The main structural members are the members that ensure strength. In addition, the aluminum exterior members 31, 32, 33, 34, and 35 function as cover materials that prevent the interior members 41, 42, 43, 44, and 45 from being exposed to the outside. The panel 26 in this embodiment is made of double-glazed glass, but triple-glazed glass or the like may also be used. Reinforcement members 51 are attached to the glass retaining grooves of the upper frame 21, lower frame 22, door edge frame 23, and outer meeting frame 24. In addition, the fixing piece 352 of the exterior member 35 and the reinforcement member 52 are attached to the glass retaining groove of the inner meeting frame 25. As explained above, the wooden interior components 41, 42, 43, 44, and 45, which have superior thermal insulation properties compared to aluminum profiles, occupy a large area, improving the thermal insulation performance of the upper frame 21, lower frame 22, door edge frame 23, and outer meeting frame 24. Furthermore, the double-glazed glass also improves the thermal insulation performance of the panel 26, so that the outer sash 20A and inner sash 20B function as highly insulated sashes.

[0027] [Reinforcement material] Next, we will explain the reinforcing members 51 and 52 that reinforce the retaining pieces 413, 423, 433, 443, and 453 of the wooden interior members 41, 42, 43, 44, and 45, using the reinforcing member 51 in the lower frame 22 of Figure 3 as an example. As described above, the lower frame 22 comprises an exterior member 32 made of aluminum profile and an interior member 42 made of LVL wood. The interior member 42 is the main structural member of the lower frame 22 and is integrally formed with a main body portion 421 provided on the outer periphery of the panel 26, a guide piece portion 422 protruding downward from the main body portion 421, and a retaining piece portion 423 protruding upward from the interior end of the main body portion 421 and positioned on the interior side of the panel 26. The main body portion 421 has a panel-facing surface 425 that faces the outer periphery of the panel 26 with a gasket 27 in between.

[0028] The reinforcing member 51 is made of a metal plate with a roughly L-shaped cross-section, comprising a fixing portion 511 fixed to the panel-facing surface 425 of the main body portion 421 with screws 61, a clamping portion 512 extending downward (towards the outer circumference of the shoji screen) from the outdoor end of the fixing portion 511, and a reinforcing portion 513 extending upward (towards the inner circumference of the shoji screen) from the indoor end of the fixing portion 511. The metal plate constituting the reinforcing member 51 can be, for example, an aluminum plate or a steel plate. The clamping portion 512 is the part that clamps the engaging piece 323 of the outdoor member 32 between itself and the main body portion 421. The reinforcing portion 513 is positioned along the outdoor surface of the retaining piece 423 and is bonded to the retaining piece 423 with adhesive or double-sided tape. The retaining piece 423 is reinforced by the placement and bonding of the metal reinforcing portion 513 to the outdoor surface of the retaining piece 423. The upper end (inner circumference side end) 5131 of the reinforcing portion 513 is positioned below (outer circumference side) the inner circumference surface 4231 of the retaining piece 423. Therefore, the outdoor surface of the retaining piece 423 is exposed on the inner circumference side of the upper end 5131 of the reinforcing portion 513, and the indoor side end of the gasket 27 is engaged with the upper end of the retaining piece 423. The outdoor side end of the gasket 27 is engaged with the upper end of the outdoor member 32.

[0029] As shown in Figures 1 and 2, the reinforcing members 51 provided on the upper frame 21, door edge frame 23, and outer meeting frame 24 are the same material as the reinforcing member 51 of the lower frame 22, and are formed in a substantially L-shape in cross-section, comprising a fixing part 511 fixed to the main body parts 411, 431, and 441 with screws 61, a clamping part 512 extending from the outdoor end of the fixing part 511 toward the outer circumference of each sliding door, and a reinforcing part 513 extending from the indoor end of the fixing part 511 toward the inner circumference of each sliding door. In these reinforcing members 51, the clamping portion 512 is the part that clamps the engaging pieces 313, 333, and 343 of the outdoor members 31, 33, and 34 between itself and the main body portions 411, 431, and 441. The reinforcing portion 513 is positioned along the outdoor surface of the retaining pieces 413, 433, and 443 and is bonded to them with adhesive or double-sided tape, thereby reinforcing the retaining pieces 413, 433, and 443. The inner circumference end of the reinforcing portion 513 is positioned on the outer circumference side of the inner circumference of the retaining pieces 413, 433, and 443, and on the inner circumference side of the reinforcing portion 513, the outdoor surface of the retaining pieces 413, 433, and 443 is exposed and engaged with the indoor end of the gasket 27. The outdoor end of the gasket 27 is engaged with the outdoor members 31, 33, and 34.

[0030] As shown in Figure 2, a reinforcing member 52 is attached to the inner meeting stile 25. The reinforcing member 52 is made of aluminum or steel and has a fixing part 521 that is fixed to the main body 451 and a reinforcing part 523 that extends from the indoor end of the fixing part 521 to the inner circumference of the inner sash 20B, forming a roughly L-shaped cross-section. The fixing part 521 of the reinforcing member 52 is positioned away in the depth direction so as not to directly contact the outdoor surface 351 of the outdoor member 35, thereby creating a gap between the outdoor member 35 and the reinforcing member 52, which improves the thermal insulation performance. The reinforcing portion 523 of the reinforcing material 52 is positioned and bonded to the outdoor surface of the retaining piece 453 of the indoor member 45. Therefore, the reinforcing material 52, like the reinforcing material 51, reinforces the retaining piece 453. In addition, the end of the retaining piece 453 is exposed to the outdoor side, and the indoor end of the gasket 27 is engaged with the retaining piece 453. The outdoor end of the gasket 27 is engaged with the outdoor member 35.

[0031] In this embodiment, the reinforcing members 51 and 52 are long members that are continuous along the longitudinal direction of the upper frame 21, lower frame 22, door edge frame 23, outer meeting frame 24, and inner meeting frame 25, but multiple short pieces may be arranged along the longitudinal direction.

[0032] [Effects of the First Embodiment] In the first embodiment, which consists of an outer shoji screen 20A and an inner shoji screen 20B, the wooden main structural members, the interior members 41, 42, 43, 44, and 45, have their retaining pieces 413, 423, 433, 443, and 453, which are positioned on the interior side of the panel 26, reinforced by the reinforcing parts 513 and 523 of the reinforcing materials 51 and 52. As a result, the force applied from the panel 26 to the retaining pieces 413, 423, 433, 443, and 453 via the gasket 27 due to wind pressure, etc., can be supported by the retaining pieces 413, 423, 433, 443, and 453 and the reinforcing materials 51 and 52. Therefore, the depth dimension (thickness dimension) of the retaining pieces 413, 423, 433, 443, and 453 can be reduced compared to the case where only the retaining pieces 413, 423, 433, 443, and 453 support the force applied from the panel 26. Therefore, even if the thickness of the panel 26 is increased by increasing the glass thickness or the number of glass panes to improve thermal insulation performance, the increase in the depth dimensions of the upper frame 21, lower frame 22, door edge frame 23, outer meeting frame 24, and inner meeting frame 25 can be suppressed, and the depth dimensions of the outer sash 20A and inner sash 20B, which are thermal insulation sashes, can be suppressed, so the depth dimensions of the window frame 10 can also be suppressed, and the fit to the wall on which the sliding window 1 is installed can be made good. Furthermore, since the interior components 41, 42, 43, 44, and 45 are integrally composed of the main body 411, 421, 431, 441, and 451 and the retaining piece 413, 423, 433, 443, and 453, the interior design of each frame can be improved compared to cases where the retaining piece is a separate component and fixed to the main body with nails or the like, resulting in connection lines on the interior surface.

[0033] Since the upper end 5131 of the reinforcing portion 513 is positioned on the outer periphery side of the inner circumferential surface 4231 of the retaining piece portion 423, the end of the gasket 27 engages with the retaining piece portion 423, and the reinforcing portion 513 is not exposed on the interior side of the panel 26, thereby improving the thermal insulation performance of the outer sash 20A and the inner sash 20B. Since the clamping portion 512 of the reinforcing member 51 and the indoor members 41, 42, 43, 44 clamp and connect the engaging pieces 313, 323, 333, 343 of the outdoor members 31, 32, 33, 34, the reinforcing member 51 can serve both as a reinforcement for the holding pieces 413, 423, 433, 443 and as a connecting function for the outdoor members 31, 32, 33, 34 and the indoor members 41, 42, 43, 44, thus reducing the number of parts. Furthermore, the shape and processing of the outdoor members 31, 32, 33, 34 can be simplified, thus reducing costs. Since the reinforcing member 51 has its fixing portion 511 fixed to the panel-facing surface 425 with screws 61, there is no need to perform any special processing on the interior member 42 to fix the reinforcing member 51, thus reducing costs. Furthermore, since the exterior members 31, 32, 33, 34, and 35 made of aluminum profiles are attached to the exterior side of the interior members 41, 42, 43, 44, and 45, the exterior exposed surfaces of the wooden interior members 41, 42, 43, 44, and 45 can be covered. As a result, it is possible to construct exterior sashes 20A and interior sashes 20B that have excellent weather resistance, as well as excellent heat insulation performance and interior design.

[0034] [Second Embodiment] Next, the thermal insulation shoji screen of the second embodiment will be described with reference to the lower frame 22B in Figure 4. The lower frame 22B, like the lower frame 22 of the first embodiment, has an outdoor member 32B and an indoor member 42B. The outdoor member 32B, like the outdoor member 32, has an outdoor surface portion 321, a retaining piece portion 322, an engaging piece portion 323, and a fixing piece portion 324. The outdoor member 32B differs from the outdoor member 32 in that it is provided with a fixing piece 325 instead of the first engaging piece portion 323 from the top. The interior member 42B, like the interior member 42 of the first embodiment, comprises a main body portion 421, a guide piece portion 422, and a retaining piece portion 423. However, it differs from the interior member 42 in that an engagement groove 426 is formed on the panel-facing surface 425 of the main body portion 421, into which the tip of the fixing piece 325 engages. The fixing piece 325 extends from the exterior surface portion 321 to the interior side, and its tip is bent to form an engagement portion that engages with the engagement groove 426, and this engagement portion is fixed to the main body portion 421 with a screw 61.

[0035] The reinforcing member 51B attached to the interior member 42B is a long member that runs along the longitudinal direction of the interior member 42B and is formed in an L-shape in cross-section, comprising a fixing portion 511 and a reinforcing portion 513. The fixing portion 511 is fixed to the panel-facing surface 425 with screws 61. The reinforcing portion 513 is positioned along the exterior surface of the retaining piece portion 423 and is bonded to the retaining piece portion 423 with adhesive or the like. Although I will omit the explanation, each frame other than the bottom frame 22B is constructed in the same way.

[0036] [Effects of the second embodiment] In the second embodiment as well, the fixing portion 511 of the reinforcing material 51B is fixed to the panel-facing surface 425, and the reinforcing portion 513 is bonded to the outdoor surface of the retaining piece portion 423. This allows the retaining piece portion 423 to be reinforced with the reinforcing material 51B, achieving the same effect as in the first embodiment. Furthermore, since reinforcing material 51B has the same shape as reinforcing material 52, reinforcing materials 51B and 52 can be standardized, thereby reducing costs.

[0037] [Third Embodiment] Next, the thermal insulation shoji screen of the third embodiment will be described with reference to the lower frame 22C in Figure 5. The lower frame 22C has an exterior member 32B and an interior member 42C. In the exterior member 32B and the interior member 42C, components that are the same as those in the lower frame 22B of the second embodiment are denoted by the same reference numerals and their description is omitted. A groove 424 is machined into the panel-facing surface 425 of the interior member 42C, along the exterior surface of the retaining piece 423. That is, the groove 424 is formed in a direction perpendicular to the panel-facing surface 425. The reinforcing member 51C comprises a fixing portion 511C and a reinforcing portion 513C, and is made of a long metal plate that runs along the interior member 42C. The fixing portion 511C is inserted into the groove 424 and bonded. Therefore, the depth dimension of the groove 424, that is, the insertion dimension of the fixing portion 511C that is bonded into the groove 424, is set to a dimension that allows the reinforcing member 51C to be fixed with a predetermined fixing force. The reinforcing portion 513C, like the reinforcing portions 513 of the reinforcing materials 51 and 51B, is bonded to the outdoor surface of the retaining piece portion 423 to reinforce the retaining piece portion 423. Although I will omit the explanation, each frame other than the bottom frame 22C is constructed in the same way.

[0038] [Effects of the third embodiment] In the third embodiment as well, the fixing portion 511C of the reinforcing material 51C is fixed to the groove 424 and the reinforcing portion 513C is bonded to the outdoor surface of the retaining piece portion 423. Therefore, the retaining piece portion 423 can be reinforced with the reinforcing material 51C, and thus the same effects as in the first and second embodiments can be achieved. Furthermore, since the reinforcing material 51C is a flat metal plate, its cost can be reduced compared to the reinforcing material 51B. In addition, since the reinforcing material 51C is bonded by inserting the fixing part 511C into the groove 424, the screws 61 used to fix the reinforcing material 51C are not required, further reducing costs.

[0039] [Fourth Embodiment] Next, the thermal insulation shoji screen of the fourth embodiment will be described with reference to the lower frame 22D in Figure 6. The lower frame 22D includes an exterior member 32B and an interior member 42D. The exterior member 32B has the same configuration as the lower frame 22B of the second embodiment, so its description is omitted. The interior member 42D comprises a first member 420A and a second member 420B. The first member 420A and the second member 420B are each made of LVL and are separate components. The first member 420A and the second member 420B are positioned with a reinforcing member 51D in between and are bonded to the reinforcing member 51D. The second member 420B has a larger visible dimension (vertical dimension) than the first member 420A, and the upper end of the second member 420B becomes a retaining piece 423D positioned on the interior side of the panel 26. The lower end of the first member 420A and the lower end of the second member 420B are the first guide piece 422A and the second guide piece 422B, which constitute a guide piece 422D that guides the outer rail 125 and the inner rail 126. In the first member 420A, all parts except the first guide piece 422A are the first main body 421A, and in the second member 420B, all parts except the second guide piece 422B and the retaining piece 423D are the second main body 421B. Therefore, the main body 421D of the interior member 42D is composed of the first main body 421A and the second main body 421B.

[0040] The reinforcing member 51D comprises a fixing portion 511D and a reinforcing portion 513D, and is composed of a long metal plate that extends along the entire length in the longitudinal direction of the interior member 42D. The fixing portion 511D is the portion bonded between the first member 420A and the second member 420B. The reinforcing portion 513D, like the reinforcing portions 513 and 513C of the reinforcing materials 51, 51B and 51C, is bonded to the exterior surface of the retaining piece portion 423D to reinforce the retaining piece portion 423D. Although I will omit the explanation, each frame other than the bottom frame 22D is constructed in the same way.

[0041] [Effects of the fourth embodiment] In the fourth embodiment as well, the fixing portion 511D of the reinforcing material 51D is bonded and fixed to the first member 420A and the second member 420B, and the reinforcing portion 513D is bonded to the outdoor surface of the retaining piece portion 423D. As a result, the retaining piece portion 423D can be reinforced with the reinforcing material 51D, and the same effects as in the first to third embodiments can be achieved. Since the reinforcing material 51D is a flat metal plate, its cost can be reduced compared to the reinforcing material 51B. Because the interior member 42D is manufactured by sandwiching the reinforcing material 51D between the first member 420A and the second member 420B and bonding them together, the screws 61 used to fix the reinforcing material 51D can be eliminated, further reducing costs. In addition, because the visible dimensions of the reinforcing material 51D are large, the strength of the entire interior member 42D, not just the retaining piece 423D, can be improved. Furthermore, since the first member 420A and the second member 420B are manufactured separately, the shapes of the first member 420A and the second member 420B can be simplified, making them easy to process.

[0042] [Fifth Embodiment] Next, the thermal insulation shoji screen of the fifth embodiment will be described with reference to the lower frame 22E in Figure 7. The lower frame 22E includes an outdoor member 32B and an indoor member 42E. The outdoor member 32B has the same structure as the outdoor member 32B of the second embodiment, so its description is omitted. In the interior component 42E, components identical to those of the lower frame 22B in the second embodiment are denoted by the same reference numerals and their descriptions are omitted. The retaining piece 423 of the interior member 42B has a reinforcing material insertion hole 424E that opens to the inner circumferential surface 4231, penetrates the retaining piece 423, and reaches the main body 421. Multiple reinforcing material insertion holes 424E are formed at intervals along the longitudinal direction of the interior member 42E using a drill or the like. For this reason, the opening of the reinforcing material insertion hole 424E is circular, and its diameter is smaller than the depth dimension of the retaining piece 423. In addition, the depth dimension of the reinforcing material insertion hole 424E is larger than the height dimension of the retaining piece 423, and the height position of the lower end surface of the reinforcing material insertion hole 424E is below the panel-facing surface 425. The reinforcing member 51E comprises a fixing portion 511E and a reinforcing portion 513E, and is composed of a dowel or the like that is fitted and fixed into the reinforcing member insertion hole 424E. In other words, the reinforcing member 51E is composed of a cylindrical wooden dowel or a metal pin. The fixing portion 511E is the part that is fitted into the reinforcing member insertion hole 424E at a position below the main body portion 421, that is, below the panel facing surface 425. For this reason, the depth dimension of the reinforcing member insertion hole 424E, that is, the length dimension of the fixing portion 511E that is fitted and fixed into the reinforcing member insertion hole 424E, is set to a dimension that allows the reinforcing member 51E to be fixed with a predetermined fixing force. The reinforcing portion 513E is a portion that is fitted into the reinforcing material insertion hole 424E at a position above the retaining piece portion 423, that is, above the panel facing surface 425. Therefore, the reinforcing portion 513E is positioned inside the retaining piece portion 423 and reinforces the retaining piece portion 423. The number and spacing of the reinforcing members 51E should be set to the number and spacing necessary to reinforce the retaining piece 423. Although not explained here, the same configuration applies to each frame other than the bottom frame 22E.

[0043] [Effects of the Fifth Embodiment] In the fifth embodiment as well, the fixing portion 511E of the reinforcing material 51E is fixed to the reinforcing material insertion hole 424E, and the holding piece portion 423 is reinforced with the reinforcing portion 513E, so the same effects as in the first to fourth embodiments can be achieved. Furthermore, the reinforcing material insertion holes 424E can be easily processed with a drill, and the reinforcing material 51E can be made of wooden dowels or metal pins, thus reducing costs.

[0044] [Sixth Embodiment] Next, the thermal insulation shoji screen of the sixth embodiment will be described with reference to the lower frame 22F in Figure 8. The lower frame 22F includes an exterior member 32B and an interior member 42F. In the exterior member 32B and the interior member 42F, components identical to those in the lower frame 22B of the second embodiment are denoted by the same reference numerals and their descriptions are omitted. The retaining piece 423 of the interior member 42F has a reinforcing material insertion groove 424F that opens to the inner circumferential surface 4231, penetrates the retaining piece 423, and reaches the main body 421. This reinforcing material insertion groove 424F is formed continuously along the longitudinal direction of the interior member 42F. For this reason, the width dimension of the reinforcing material insertion groove 424F in the depth direction is smaller than the depth dimension of the retaining piece 423. In addition, the depth dimension of the reinforcing material insertion groove 424F is larger than the height dimension of the retaining piece 423, and the height position of the lower end surface of the reinforcing material insertion groove 424F is lower than the panel-facing surface 425. The reinforcing member 51F comprises a fixing portion 511F and a reinforcing portion 513F, and is made of a long metal plate material that runs along the longitudinal direction of the interior member 42F. The fixing portion 511F is inserted into and bonded to the reinforcing member insertion groove 424F. Therefore, the depth dimension of the reinforcing member insertion groove 424F, that is, the length dimension of the fixing portion 511F bonded to the reinforcing member insertion groove 424F, is set to a dimension that allows the reinforcing member 51F to be fixed with a predetermined fixing force. The reinforcing portion 513F is the portion fitted into the reinforcing material insertion groove 424F at a position above the retaining piece portion 423, that is, above the panel facing surface 425. Therefore, the reinforcing portion 513E is positioned inside the retaining piece portion 423 to reinforce it. Although not explained here, the same configuration is used for each frame other than the bottom frame 22F.

[0045] [Effects of the 6th Embodiment] In the sixth embodiment as well, the fixing portion 511F of the reinforcing material 51F is fixed to the reinforcing material insertion groove 424F, and the reinforcing portion 513F is placed inside the retaining piece portion 423. This allows the retaining piece portion 423 to be reinforced with the reinforcing material 51F, achieving the same effects as in the first to fifth embodiments. Since the reinforcing material 51F is a flat metal plate, its cost can be reduced compared to the reinforcing material 51B. Furthermore, since the reinforcing material 51F is bonded by inserting the fixing part 511F into the reinforcing material insertion groove 424F, the screws 61 used to fix the reinforcing material 51F are unnecessary, further reducing costs.

[0046] [Differentiation] The present invention is not limited to the configurations described in the above embodiments, and any modifications that can achieve the objectives of the present invention are included in the present invention. The main structural material, wood, is not limited to LVL or laminated timber, but can be any wood suitable for use in insulated shoji screens. Furthermore, the frame of the insulated shoji screen is not limited to having a metal exterior member and a wooden interior member, as in each embodiment. For example, the frame of the insulated shoji screen may consist of a synthetic resin exterior member and a wooden interior member, or it may consist of a wooden exterior member and an interior member. Moreover, the frame of the insulated shoji screen is not limited to being composed of two members, an exterior member and an interior member, but may be an integrated wooden frame having exterior and interior retaining pieces positioned on the exterior and interior sides of the panel, respectively. When using a wooden exterior member or an integrated frame, in addition to a reinforcing material that reinforces the interior retaining piece of the panel, an exterior reinforcing material that reinforces the exterior retaining piece of the panel may be provided. This exterior reinforcing material may be separate from or integrated with the interior reinforcing material. The interior components may consist of a wooden main structure such as LVL and decorative panels attached to the interior side of the main structure. The structure for framing the upper frame 21, lower frame 22, door edge frame 23, outer meeting frame 24, and inner meeting frame 25 is not particularly limited.

[0047] The configuration of the reinforcing material is not limited to the embodiments described above. For example, the reinforcing portion of the reinforcing material is not limited to being bonded to the retaining piece. For example, when reinforcing materials 51E and 51F are placed inside the retaining piece 423, as in the lower frame 22E and 22F, reinforcement can be achieved without bonding the reinforcing material to the retaining piece. Therefore, the reinforcing material should be configured so that it can support the force applied from the panel 26 by wind pressure, etc., not only to the retaining piece but also to the reinforcing portion. In addition, in the first and second embodiments, the fixing portion 511 was fixed to the panel-facing surface with a screw 61, but it may also be bonded to the panel-facing surface with an adhesive or the like. Furthermore, the material of the reinforcing material can be any material that can reinforce the retaining piece and is not limited to metal or the like. Insulated shoji screens are not limited to sliding window screens; they can also be swing-type screens such as casement windows and hinged windows, sliding-type screens such as single-hung windows and double-hung windows, and even screens that make up fixed windows.

[0048] [summary] The present invention relates to an insulating shoji screen comprising a frame material having a wooden main structural material, a panel held by the frame material, and a reinforcing material for reinforcing the main structural material, wherein the main structural material is integrally formed with a main body portion provided on the outer periphery side of the panel and a retaining piece portion protruding from the main body portion and positioned on the interior side of the panel, and the reinforcing material comprises a reinforcing portion positioned on the exterior surface of the retaining piece portion or inside the retaining piece portion to reinforce the retaining piece portion, and a fixing portion fixed to the main body portion. According to the present invention, the retaining piece located on the interior side of the panel in the main wooden structural material is reinforced with a reinforcing material, so the depth dimension of the retaining piece can be reduced. Therefore, even if the thickness dimension of the panel is increased to improve thermal insulation performance, the increase in the depth dimension of each frame material can be suppressed, the depth dimension of thermal insulation shoji screens and window frames can also be suppressed, and the fit to the wall to which the joinery is attached can be improved.

[0049] In the thermal insulation shoji screen of the present invention, the reinforcing material may be configured in a substantially L-shape in cross-section, comprising a reinforcing portion arranged along the outdoor surface of the retaining piece and a fixing portion fixed to the panel-facing surface of the main body portion that faces the outer peripheral surface of the panel. According to the present invention, the reinforcing material can be fixed to the panel-facing surface with screws or the like at the fixing portion, eliminating the need for special processing to fix the reinforcing material to the interior components, thus reducing costs.

[0050] In the thermal insulation shoji screen of the present invention, the reinforcing material may include a reinforcing portion arranged along the outdoor surface of the retaining piece and a fixing portion fixed to a groove processed on the panel-facing surface of the main body portion that faces the outer peripheral surface of the panel. According to the present invention, since the reinforcing material can be fixed to a groove processed on the panel-facing surface, the reinforcing material can be made of a flat metal plate or the like, and fixing screws can be eliminated, thus reducing costs.

[0051] In the thermal insulation shoji screen of the present invention, the main structural material may have a reinforcing material insertion hole or reinforcing material insertion groove formed on the inner circumferential surface of the retaining piece portion, penetrating the retaining piece portion and reaching the main body portion, and the reinforcing material may include a fixing portion that is inserted into the reinforcing material insertion hole or the reinforcing material insertion groove and fixed to the main body portion, and a reinforcing portion that is arranged in the penetrating portion of the retaining piece portion and reinforces the retaining piece portion. According to the present invention, wooden dowels, metal pins, metal plates, etc., can be used as reinforcing materials inserted into reinforcing material insertion holes or reinforcing material insertion grooves, and fixing screws can be eliminated, thus reducing costs.

[0052] The present invention relates to an insulating shoji screen comprising a frame material having a wooden main structural material, a panel held by the frame material, and a reinforcing material for reinforcing the main structural material, wherein the main structural material has a first member and a second member which is constructed separately from the first member and is arranged on the interior side of the first member, the first member has a first main body portion provided on the outer periphery side of the panel, the second member is integrally formed with a second main body portion which together with the first main body portion constitutes a main body portion and a retaining piece portion which protrudes from the second main body portion and is arranged on the interior side of the panel, and the reinforcing material comprises a reinforcing portion which is arranged along the exterior surface of the retaining piece portion and reinforces the retaining piece portion, and a fixing portion which is sandwiched between the first member and the second member and adhered to the first member and the second member. According to the present invention, the reinforcing material can be made of a flat metal plate or the like, thus reducing costs. Furthermore, since the interior component is manufactured by sandwiching the reinforcing material between the first and second components and bonding them together, screws for fixing the reinforcing material are unnecessary, further reducing costs. In addition, because the visible dimensions of the reinforcing material are large, the strength of the entire interior component, not just the retaining piece, can be improved. Moreover, since the first and second components are manufactured separately, the shapes of the first and second components can be simplified, making them easy to process.

[0053] In the heat-insulating shoji screen of the present invention, it is preferable that the inner circumferential end of the reinforcing portion is located on the outer circumferential side of the inner circumferential surface of the retaining piece portion, a gasket is attached to the outer circumferential side of the panel, and the gasket is engaged with the retaining piece portion. According to the present invention, the reinforcing portion of the reinforcing material is hidden by the gasket and not exposed to the interior side, thus improving thermal insulation performance.

[0054] In the heat-insulating shoji screen of the present invention, it is preferable that the reinforcing portion is adhered to the exterior surface of the retaining piece. According to the present invention, since the reinforcing portion of the reinforcing material is bonded to the exterior surface of the retaining piece, the retaining piece can be sufficiently reinforced even if the reinforcing portion is not located inside the retaining piece.

[0055] In the thermal insulation shoji screen of the present invention, it is preferable to include an exterior member that is attached to the exterior side of the main structural material. According to the present invention, since the exterior member is attached to the exterior side of the wooden main structural member, it is possible to prevent the main structural member from being exposed to the outside. [Explanation of symbols]

[0056] 1...Sliding window, 20A...Exterior sash, 20B...Interior sash, 21...Upper frame, 22...Lower frame, 22B...Lower frame, 22C...Lower frame, 22D...Lower frame, 22E...Lower frame, 22F...Lower frame, 23...Door edge frame, 24...Exterior meeting frame, 25...Interior meeting frame, 26...Panel, 27...Gasket, 36...Reinforcement material, 41...Interior component, 42...Interior component, 42B...Interior part Material, 42C...Interior member, 42D...Interior member, 42E...Interior member, 42F...Interior member, 43...Interior member, 44...Interior member, 45...Interior member, 51...Reinforcement member, 51B...Reinforcement member, 51C...Reinforcement member, 51D...Reinforcement member, 51E...Reinforcement member, 51F...Reinforcement member, 52...Reinforcement member, 411...Main body, 413...Retaining piece, 420A...First member, 420B...Second member, 421...Main body, 421A...First main body, 421B...Second main body, 421D...Main body, 423...Retaining piece, 423D...Retaining piece, 424...Groove, 424E...Reinforcement member insertion hole, 424F...Reinforcement member insertion groove, 425...Panel opposing surface, 431...Main body, 433...Retaining piece, 441...Main body, 443...Retaining Holding piece part, 451...Body part, 453...Holding piece part, 511...Fixing part, 511C...Fixing part, 511D...Fixing part, 511E...Fixing part, 511F...Fixing part, 513...Reinforcement 513C...Reinforcement part, 513D...Reinforcement part, 513E...Reinforcement part, 513F...Reinforcement part, 521...Fixing part, 523...Reinforcement part, 4231...Inner peripheral surface, 5131...Top end.

Claims

1. An insulating shoji screen comprising a frame material having a wooden main structural material, a panel held by the frame material, and a reinforcing material that reinforces the main structural material, The main structural member is integrally formed with a main body portion provided on the outer periphery of the panel and a retaining piece portion that protrudes from the main body portion and is positioned on the interior side of the panel. The aforementioned reinforcing material is A reinforcing portion is disposed on the outdoor surface of the retaining piece or inside the retaining piece to reinforce the retaining piece, The main body comprises a fixing part that is fixed to the main body. A thermal insulation shoji screen characterized by its features.

2. In the thermal insulation shoji screen according to claim 1, The aforementioned reinforcing material is The reinforcing portion is arranged along the outdoor surface of the retaining piece, The main body is configured to have a substantially L-shaped cross-section, comprising a fixing portion fixed to a panel-facing surface that is opposite to the outer circumferential surface of the panel. A thermal insulation shoji screen characterized by its features.

3. In the thermal insulation shoji screen according to claim 1, The aforementioned reinforcing material is The reinforcing portion is arranged along the outdoor surface of the retaining piece, The main body comprises a fixing portion which is fixed in a groove machined on the panel-facing surface that is opposite to the outer circumferential surface of the panel. A thermal insulation shoji screen characterized by its features.

4. In the thermal insulation shoji screen according to claim 1, The main structural material has a reinforcing material insertion hole or reinforcing material insertion groove that opens on the inner circumferential surface of the retaining piece and penetrates the retaining piece to reach the main body. The reinforcing member comprises a fixing portion that is inserted into the reinforcing member insertion hole or the reinforcing member insertion groove and fixed to the main body, and a reinforcing portion that is positioned at the through portion of the retaining piece and reinforces the retaining piece. A thermal insulation shoji screen characterized by its features.

5. An insulating shoji screen comprising a frame material having a wooden main structural material, a panel held by the frame material, and a reinforcing material that reinforces the main structural material, The main structural member comprises a first member and a second member which is constructed separately from the first member and is located on the interior side of the first member. The first member comprises a first main body portion provided on the outer periphery side of the panel, The second member is integrally formed with a second main body portion that together with the first main body portion constitutes the main body portion, and a retaining piece portion that protrudes from the second main body portion and is positioned on the indoor side of the panel. The aforementioned reinforcing material is A reinforcing portion is arranged along the outdoor surface of the retaining piece to reinforce the retaining piece, The system includes a fixing portion sandwiched between the first member and the second member and bonded to the first member and the second member. A thermal insulation shoji screen characterized by its features.

6. In the thermal insulation shoji screen according to claim 2, claim 3, or claim 5, The inner circumferential end of the reinforcing portion is located on the outer circumferential side of the inner circumferential surface of the retaining piece portion. A gasket is attached to the outer circumference of the panel, and the gasket is engaged with the retaining piece. A thermal insulation shoji screen characterized by its features.

7. In the thermal insulation shoji screen according to claim 2, claim 3, or claim 5, The reinforcing portion is bonded to the outdoor surface of the retaining piece. A thermal insulation shoji screen characterized by its features.

8. In the thermal insulation shoji screen according to claim 1 or claim 5, The exterior member is attached to the exterior side of the main structural member. A thermal insulation shoji screen characterized by its features.

Images