Frame assembly structure and joinery

Abstract

To provide a frame assembly structure and joinery that maintains ease of assembly. [Solution] In the frame assembly structure, the resin vertical frame 43B of the door frame 43 forms a hollow portion 430E and a notch 50 is formed by cutting out a part of the portion that forms the hollow portion 430E. The end of the resin vertical frame 43B is provided with a cap 61 having a projection 613 that covers the end face of the frame material of the resin vertical frame 43B and is inserted into the hollow portion 430E. The projection 613 is positioned to restrict the deformation movement of the portion that forms the hollow portion 430E toward the hollow portion 430E in the Z-axis direction. The end of the resin horizontal frame 41B of the upper frame 41 is positioned in the notch 50.

Description

Technical Field

[0001] The present invention relates to an assembly structure of a frame body in a shoji screen and a fitting.

Background Art

[0002] Conventionally, a composite sash in which a frame body of a shoji screen housed in a frame is configured by connecting a vertical frame and a horizontal frame is known (see Patent Document 1). The vertical frame is composed of a metal vertical frame on the outdoor side and a resin vertical frame on the indoor side, and the horizontal frame is composed of a metal horizontal frame on the outdoor side and a resin horizontal frame on the indoor side. The end face of the horizontal frame abuts against the side face of the vertical frame. The end of the metal horizontal frame is fixed to the metal vertical frame. The end of the resin horizontal frame is arranged in a contact portion formed in a notch shape on the resin vertical frame, and has a so-called inlay structure.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the composite sash described in Patent Document 1, the end of the resin horizontal frame is not fixed to the resin vertical frame, and it can cope with the shrinkage of the resin horizontal frame due to temperature change. By the way, when a hollow portion is formed in the resin vertical frame to enhance heat insulation, it is conceivable to form the contact portion by cutting out a part of the portion forming the hollow portion. However, by cutting out a part of the portion forming the hollow portion, the internal stress of the portion is released, and the portion forming the hollow portion may deform toward the hollow portion side. When deformed in this way, it becomes difficult to arrange the resin horizontal frame in the contact portion and it becomes difficult to maintain the assembly workability of assembling the frame body.

[0005] An object of the present invention is to provide an assembly structure of a frame body and a fitting that can maintain assembly workability. [Means for solving the problem]

[0006] The present invention provides a frame assembly structure for a sliding door frame, comprising a vertical frame and a horizontal frame, wherein the vertical frame comprises at least a resin vertical frame, and the horizontal frame comprises at least a resin horizontal frame, and one of the resin vertical frame and the resin horizontal frame forms a hollow portion and a notch in which a part of the portion forming the hollow portion is cut out, and the end of the one frame is provided with a cap having a projection that covers the end face of the one frame and is inserted into the hollow portion, the projection is arranged to restrict deformation and movement toward the hollow portion in the depth direction of the portion forming the hollow portion, and the end of the other frame of the resin vertical frame and the resin horizontal frame is arranged in the notch. The joinery of the present invention comprises a frame and a shoji screen disposed within the frame, wherein the shoji screen is constructed by assembling an upper frame, a lower frame, left and right vertical frames and a facing material, the upper frame, the lower frame and the left and right vertical frames form a frame that constitutes the frame assembly structure of the present invention described above, the upper frame and the lower frame are horizontal frames in the frame assembly structure, and the left and right vertical frames are vertical frames in the frame assembly structure. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a frame assembly structure and joinery that can maintain ease of assembly. [Brief explanation of the drawing]

[0008] [Figure 1] An interior view showing a sliding window according to an embodiment of the present invention. [Figure 2] A vertical cross-sectional view showing a sliding window according to the above embodiment. [Figure 3] A cross-sectional view showing a sliding window according to the above embodiment. [Figure 4] A perspective view illustrating the main parts of a sliding window according to the above embodiment. [Figure 5]A perspective view illustrating the upper part of the door frame of the outer sash in the sliding window according to the above embodiment. [Figure 6] Figure 5 is an explanatory diagram showing the cap. [Figure 7] A perspective view illustrating the lower part of the door frame of the outer sash in the sliding window according to the above embodiment. [Figure 8] Figure 7 is an explanatory diagram showing the cap. [Figure 9] A perspective view illustrating the upper part of the door frame of the inner sash in the sliding window according to the above embodiment. [Figure 10] Figure 9 is an explanatory diagram showing the cap. [Figure 11] A perspective view illustrating the lower part of the door frame of the inner sash in the sliding window according to the above embodiment. [Figure 12] Figure 11 is an explanatory diagram showing the cap. [Figure 13] A perspective view illustrating the upper part of the inner meeting stile of the inner sash in the sliding window according to the above embodiment. [Figure 14] Figure 13 is an explanatory diagram showing the cap. [Figure 15] A perspective view illustrating the lower part of the inner meeting stile of the inner sash in the sliding window according to the above embodiment. [Figure 16] Figure 15 is an explanatory diagram showing the cap. [Figure 17] An explanatory diagram showing the insertion state of the protrusions in each of the aforementioned caps. [Modes for carrying out the invention]

[0009] [Structure of this embodiment] Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, the sliding window 1 as a fitting according to the present embodiment is provided in an opening of a building body to partition the inside and outside of the room, and includes a window frame 2 (frame body), and an inner shutter 3 and an outer shutter 4 (shutter) that are slidably arranged within the window frame 2. The inner shutter 3 and the outer shutter 4 are arranged so as to be able to be drawn apart from each other. This sliding window 1 is a metal-resin composite window, with the metal part arranged on the outdoor side and the resin part arranged on the indoor side. In the following description, the left-right direction (sliding movement direction) of the sliding window 1 is defined as the X-axis direction, the up-down direction of the sliding window 1 is defined as the Y-axis direction, and the prospective direction (inside-outside direction) of the sliding window 1 is defined as the Z-axis direction. The X, Y, and Z-axis directions are orthogonal to each other. Also, the direction toward the outdoor side in the Z-axis direction is defined as the +Z-axis direction, and the direction toward the indoor side in the Z-axis direction is defined as the -Z-axis direction.

[0010] The window frame 2 includes an upper frame 21, a lower frame 22, and left and right vertical frames 23, which are configured by being framed together. The upper frame 21, the lower frame 22, and the left and right vertical frames 23 are extrusion-molded. The upper frame 21 and the lower frame 22 are along the X-axis direction, and the left and right vertical frames 23 are along the Y-axis direction. The upper frame 21, the lower frame 22, and the left and right vertical frames 23 include aluminum frame materials (frame materials for the outdoor side) 21A, 22A, 23A and resin frame materials 21B, 22B, 23B for the indoor side. As shown in FIG. 2, an upper rail 211 (rail) along the X-axis direction in which the upper part of the outer shutter 4 is slidably fitted in the X-axis direction is provided on the aluminum frame material 21A of the upper frame 21. On the -Z-axis direction side with respect to the upper rail 211, a holding groove part 212 along the X-axis direction in which the upper part of the inner shutter 3 is slidably arranged in the X-axis direction is provided. Also, airtight materials 213, 214 that abut from the indoor side against the outer shutter 4 and the inner shutter 3 respectively are attached to the upper frame 21. As shown in Fig. 2, lower rails 221 and 222 (rails) along the X-axis direction are provided on the aluminum frame material 22A of the lower frame 22. On the lower rail 221, a door wheel 421 provided at the lower part of the outer shutter 4 is placed so as to be able to travel in the X-axis direction. On the lower rail 222 arranged on the indoor side with respect to the lower rail 221, a door wheel 321 provided at the lower part of the inner shutter 3 is placed so as to be able to travel in the X-axis direction. Further, airtight materials 223 and 224 that abut against the outer shutter 4 and the inner shutter 3 from the indoor side are attached to the lower frame 22.

[0011] The inner shutter 3 is arranged on the -Z-axis direction side with respect to the outer shutter 4, and includes a face material 37 composed of an upper frame 31 (horizontal frame), a lower frame 32 (horizontal frame), a door end frame 33 (vertical frame), an inner joining frame 34 (vertical frame), a glass panel, etc., and these are assembled in a vertical manner (frame assembled) to be constituted. The upper frame 31, the lower frame 32, the door end frame 33, and the inner joining frame 34 are extrusion-molded. The upper frame 31 and the lower frame 32 extend along the X-axis direction, the door end frame 33 and the inner joining frame 34 extend along the Y-axis direction, and the inner joining frame 34 constitutes the inner joining part in the sliding window 1.

[0012] As shown in Fig. 2, the upper frame 31 is constituted by combining a metal horizontal frame 31A formed of an extruded shape material made of metal, aluminum in this embodiment, and a resin horizontal frame 31B formed of an extruded shape material made of resin. The metal horizontal frame 31A is arranged on the outdoor side and the resin horizontal frame 31B is arranged on the indoor side. The metal horizontal frame 31A has an exterior facing portion 311A ​​and an interior facing portion 312A extending in the Y-axis direction, upper and lower projection portions 313A and 314A extending in the Z-axis direction, and a continuous portion 315A extending in the Y-axis direction continuous with the projection portions 313A and 314A. The exterior facing portion 311A ​​extends upward above the lower projection portion 3143 and is continuous with the upper projection portion 314A at its upper end. The interior facing portion 312A is positioned at a distance from the exterior facing portion 311A ​​in the -Z-axis direction and is continuous with the projection portion 314A. The continuous portion 315A is positioned at a distance from the exterior facing portion 311A ​​in the Z-axis direction. The upper projection piece 314A is held in place by being absorbed into the retaining groove 212 of the upper frame 21 and is slidably in contact with the airtight material 214. The exterior projection piece 311A, the interior projection piece 312A, and the projection piece 313A constitute the surface material retaining groove that holds the surface material 37. In addition, the exterior projection piece 311A, the projection pieces 313A, 314A, and the continuous piece 315A are the parts that form the hollow section 310C along the X-axis direction. The resin horizontal frame 31B has an outdoor facing piece 311B (outdoor piece) and an indoor facing piece 312B (indoor piece) extending in the Y-axis direction, upper and lower projection pieces 313B and 314B extending in the Z-axis direction continuous with the outdoor facing piece 311B and the indoor facing piece 312B, and an upper piece 315B extending upward from the outdoor end of the upper projection piece 314B. The upper end of the upper piece 315B is configured as an engaging portion that engages with an engaging portion formed on the continuous piece 315A of the metal horizontal frame 31A. The projection piece 313B extends further outward than the outdoor facing piece 311B, and this extended portion is configured as an engaging portion that engages with the indoor facing piece 312A of the metal horizontal frame 31A. Furthermore, the exterior facing piece 311B, the interior facing piece 312B, and the upper and lower facing pieces 313B and 314B are parts that form a hollow section 310D along the X-axis direction. This resin horizontal frame 31B covers the metal horizontal frame 31A from the interior side and enhances the thermal insulation between the interior and exterior by forming the aforementioned hollow section 310D. In this upper frame 31, a hollow portion 310E is formed between the metal horizontal frame 31A and the resin horizontal frame 31B, oriented along the X-axis.

[0013] As shown in Figure 2, the lower frame 32 is constructed by combining a metal horizontal frame 32A, which is made of metal, or in this embodiment, aluminum, extruded profile, and a resin horizontal frame 32B, which is made of resin, extruded profile. The metal horizontal frame 32A is positioned on the exterior side and the resin horizontal frame 32B is positioned on the interior side. The metal horizontal frame 32A has an exterior facing portion 321A, an upper interior facing portion 322A, and a lower interior facing portion 323A extending in the Y-axis direction, and upper and lower projection portions 324A and 325A extending in the Z-axis direction. The exterior facing portion 321A and the upper interior facing portion 322A are continuous with the upper projection portion 324A, and the exterior facing portion 321A and the lower interior facing portion 323A are continuous with the lower projection portion 325A. The lower interior facing portion 323A extends downward from the projection portion 324A at a position between the exterior facing portion 321A and the upper interior facing portion 322A, and an engagement portion is formed at its intermediate position in the Y-axis direction, into which the resin horizontal frame 32B engages. The exterior facing piece 321A, the upper interior facing piece 322A, and the projection piece 324A constitute a surface material holding groove for holding the surface material 37. The exterior facing piece 321A, the lower interior facing piece 323A, and the upper and lower projection pieces 324A and 325A form a hollow section 320C along the X-axis. A door roller 321 is provided on this metal horizontal frame 32A, which is mounted on the lower rail 222 so as to be able to move freely and is in slidable contact with the aforementioned airtight material 224. The resin horizontal frame 32B has an outdoor facing piece 321B (outdoor piece) and an indoor facing piece 322B (indoor piece) extending in the Y-axis direction, upper and lower facing pieces 323B and 324B extending in the Z-axis direction and continuous with the outdoor facing piece 321B and the indoor facing piece 322B, an inclined piece 325B that slopes diagonally downward in the +Z-axis direction from the lower end of the indoor facing piece 322B, and a lower piece 326B that is continuous with the outdoor end of the lower facing piece 324B and the outdoor end of the inclined piece 325B and extends in the Y-axis direction. The upper projection piece 323B extends further outward than the exterior projection piece 321B, and this extended portion is configured as an engaging portion that engages with the upper interior projection piece 322A of the metal horizontal frame 32A. The lower projection piece 326B is provided with an engaging portion at an intermediate position in the Y-axis direction that engages with the engaging portion of the lower interior projection piece 323A of the metal horizontal frame 32A. Furthermore, the exterior projection piece 321B, the interior projection piece 322B, and the upper and lower projection pieces 323B and 324B form a hollow portion 320D along the X-axis direction, while the lower projection piece 324B, the inclined projection piece 325B, and the lower projection piece 326B form a hollow portion 320E along the X-axis direction. This resin horizontal frame 32B covers the metal horizontal frame 32A from the interior side and also forms the aforementioned hollow sections 320D and 320E, thereby improving the insulation performance both inside and outside the room. In this lower frame 32, a hollow portion 320F is formed between the metal horizontal frame 32A and the resin horizontal frame 32B, oriented along the X-axis.

[0014] As shown in Figure 3, the door frame 33 is constructed by combining a metal vertical frame 33A, which is made of metal, or in this embodiment, aluminum, and a resin vertical frame 33B, which is made of resin, with the metal vertical frame 33A positioned on the exterior side and the resin vertical frame 33B positioned on the interior side. The metal vertical frame 33A has an exterior facing portion 331A and an interior facing portion 332A extending in the X-axis direction, inner and outer circumferential facing portions 334A and 335A extending in the Z-axis direction, and a continuous portion 336A that is continuous with the facing portions 334A and 335A. The facing portions 334A and 335A are continuous with the exterior facing portion 331A and the interior facing portion 332A, and the continuous portion 336A is positioned at a distance in the Z-axis direction from the exterior facing portion 331A. The exterior facing portion 331A, the interior facing portion 332A, and the inner circumferential facing portion 334A constitute a facing material holding groove portion that holds the facing material 37. Furthermore, the exterior facing portion 331A, the continuous portion 336A, and the projection portions 334A and 335A are parts that form a hollow portion 330C along the Y-axis. The resin vertical frame 33B has an exterior facing piece 331B (exterior piece) and an interior facing piece 332B (interior piece) extending in the X-axis direction, an inner circumferential and outer circumferential facing piece 333B, 334B extending in the Z-axis direction continuous with the exterior facing piece 331B and the interior facing piece 332B, and an outer circumferential piece 335B extending outward from the outer circumferential facing piece 334B. The outer circumferential end of the outer circumferential piece 335B is configured as an engaging portion that engages with an engaging portion formed on the continuous piece 336A of the metal vertical frame 33A. The inner circumferential facing piece 333B extends further outward than the exterior facing piece 331B, and this extended portion is configured as an engaging portion that engages with the interior facing piece 332A of the metal vertical frame 33A. Furthermore, the exterior facing piece 331B, the interior facing piece 332B, and the interior facing pieces 333B, 334B are the parts that form the hollow section 330D along the Y-axis. This resin vertical frame 33B covers the metal vertical frame 33A from the interior side and enhances the thermal insulation between the interior and exterior by forming the aforementioned hollow section 330D. In this door frame 33, a hollow portion 330E is formed between the metal vertical frame 33A and the resin vertical frame 33B, along the Y-axis direction.

[0015] As shown in Figure 3, the interior meeting stile 34 is constructed by combining a metal vertical stile 34A, formed from an extruded profile of metal, in this embodiment from aluminum, and a resin vertical stile 34B, formed from an extruded profile of resin. The metal vertical stile 34A is positioned on the exterior side and the resin vertical stile 34B is positioned on the interior side. The metal vertical frame 34A has an exterior facing portion 341A and an interior facing portion 342A extending in the X-axis direction, inner and outer periphery facing portions 343A and 344A extending in the Z-axis direction, a continuous portion 345A that connects the facing portions 343A and 344A at an intermediate position between the exterior facing portion 341A and the interior facing portion 342A, and a smoke-returning portion 346A with a substantially L-shaped cross-section that extends outward from the exterior facing portion 341A and is bent in the X-axis direction toward the door edge side of the interior sash 3. The facing portions 343A and 344A are continuous with the exterior facing portion 341A and the interior facing portion 342A. The exterior facing piece 341A, the interior facing piece 342A, and the inner perimeter facing piece 343A constitute a facing material holding groove where the facing material 37 is placed. The exterior facing piece 341A is fitted with an airtight fin that contacts the contact portion formed on the interior facing piece 442A of the metal vertical frame 44A of the exterior meeting frame 44, which will be described later. In addition, the exterior facing piece 341A, the facing pieces 343A, 344A, and the continuous piece 345A constitute the exterior hollow section 340C along the Y-axis, and the interior facing piece 342A, the facing pieces 343A, 344A, and the continuous piece 345A constitute the interior hollow section 340D along the Y-axis. The resin vertical frame 34B has an exterior facing piece 341B (exterior piece) and an interior facing piece 342B (interior piece) extending in the X-axis direction, inner and outer periphery facing pieces 343B and 344B extending in the Z-axis direction, an extended facing piece 345B extending from the exterior facing piece 341B in the +Z-axis direction, and a continuous piece 346B where the exterior end of the extended facing piece 345B is continuous with the facing piece 344B. The facing pieces 343B and 344B are continuous with the exterior facing piece 341B and the interior facing piece 342B. The inner periphery facing piece 343B extends further outward than the exterior facing piece 341B, and this extended portion is configured as an engaging portion that engages with the interior facing piece 342A of the metal vertical frame 34A. The outer-peripheral projection piece 344B extends further outward than the outdoor-facing piece 341A, and this extension extends to the same projection position as the smoke return piece 346A in the Z-axis direction, and covers the outer surface of the metal vertical frame 34A. The outdoor end of the extension of the projection piece 344B is configured as an engaging portion that engages with an engaging portion formed on the outer-peripheral projection piece 344A of the metal vertical frame 34A. The extended projection piece 345B has an engaging portion that engages with the engaging portion formed by the indoor-facing piece 342A and the outer-peripheral projection piece 344A of the metal vertical frame 34A. Furthermore, the exterior facing piece 341B, the interior facing piece 342B, and the projection pieces 343B, 344B form a hollow section 340E along the Y-axis, while the exterior facing piece 341B, projection piece 344B, extended projection piece 345B, and continuous piece 346B form a hollow section 340F along the Y-axis. This resin vertical frame 34B covers the metal vertical frame 34A from the interior side and enhances the thermal insulation performance both inside and outside the building by forming the aforementioned hollow sections 340E and 340F.

[0016] The outer sash 4 is positioned on the +Z axis side relative to the inner sash 3 and comprises an upper frame 41 (horizontal frame), a lower frame 42 (horizontal frame), a door edge frame 43 (vertical frame), an outer meeting frame 44 (vertical frame), and a surface material 47 consisting of a glass panel or the like, which are assembled (framed) with the vertical orientation dominant. The upper frame 41, lower frame 42, door edge frame 43, and outer meeting frame 44 are extruded. The upper frame 41 and lower frame 42 are aligned along the X axis, the door edge frame 43 and outer meeting frame 44 are aligned along the Y axis, and the outer meeting frame 44 constitutes the outer meeting portion of the sliding window 1. As shown in Figure 2, the upper frame 41 is constructed by combining a metal horizontal frame 41A, which is made of metal, and in this embodiment of aluminum, an extruded profile, and a resin horizontal frame 41B, which is made of resin. The metal horizontal frame 41A is positioned on the exterior side and the resin horizontal frame 41B is positioned on the interior side. The metal horizontal frame 41A has an exterior facing portion 411A and an interior facing portion 412A extending in the Y-axis direction, upper and lower projection portions 413A and 414A extending in the Z-axis direction, and a continuous portion 415A continuous with the projection portions 413A and 414A. The exterior facing portion 411A extends upward above the lower projection portion 413A and is continuous with the upper projection portion 414A at its upper end. The interior facing portion 412A is positioned at a distance from the exterior facing portion 411A in the -Z-axis direction and is continuous with the projection portion 413A. The continuous portion 415A is positioned at a distance from the exterior facing portion 411A in the Z-axis direction. The upper visible portion 414A has a rail groove 411 in which the upper rail 211 is positioned, and the visible portion 414A is in slidable contact with the airtight material 213. The exterior visible portion 411A, the interior visible portion 412A, and the visible portion 413A constitute a surface material holding groove that holds the surface material 47. In addition, the exterior visible portion 411A, the visible portions 413A, 414A, and the continuous portion 415A are the parts that form a hollow portion 410C along the X-axis direction. The resin horizontal frame 41B has an exterior facing portion 411B (exterior portion) and an interior facing portion 412B (interior portion) extending in the Y-axis direction, upper and lower projection portions 413B and 414B extending in the Z-axis direction continuous with the exterior facing portion 411B and the interior facing portion 412B, and an upper portion 415B extending upward from the exterior end of the upper projection portion 414B. The upper end of the upper portion 415B is configured as an engaging portion that engages with an engaging portion formed on the projection portion 414A of the metal horizontal frame 41A. The projection portion 413B extends further outward than the exterior facing portion 411B, and this extended portion is configured as an engaging portion that engages with the interior facing portion 412A of the metal horizontal frame 41A. Furthermore, the exterior facing piece 411B, the interior facing piece 412B, and the upper and lower facing pieces 413B and 414B are parts that form a hollow section 410D along the X-axis direction. This resin horizontal frame 41B covers the metal horizontal frame 41A from the interior side and enhances the insulation performance both inside and outside the building by forming the aforementioned hollow section 410D. In this upper frame 41, a hollow portion 410E is formed between the metal horizontal frame 41A and the resin horizontal frame 41B, along the X-axis direction.

[0017] As shown in Figure 2, the lower frame 42 is made of metal, and in this embodiment, it is constructed by combining a metal horizontal frame 42A, which is locked with an extruded aluminum profile, and a resin horizontal frame 42B, which is made of an extruded resin profile. The metal horizontal frame 42A is located on the exterior side and the resin horizontal frame 42B is located on the interior side. The metal horizontal frame 42A has an exterior facing piece 421A, an upper interior facing piece 422A, and a lower interior facing piece 423A extending in the Y-axis direction, upper and lower projection pieces 424A and 425A extending in the Z-axis direction, and a continuous piece 426A that connects the exterior facing piece 421A and the lower interior facing piece 423A between the projection pieces 424A and 425A. The exterior facing piece 421A and the upper interior facing piece 422A are continuous with the upper projection piece 424A, and the exterior facing piece 421A and the lower interior facing piece 423A are continuous with the lower projection piece 425A. The lower interior facing piece 423A extends downward from the projection piece 424A at a position between the exterior facing piece 421A and the upper interior facing piece 422A, and an engagement portion is formed at its intermediate position in the Y-axis direction, into which the resin horizontal frame 42B engages. The exterior facing piece 421A, the upper interior facing piece 422A, and the projection piece 424A constitute a surface material holding groove for holding the surface material 47. Furthermore, the exterior facing piece 421A, the lower interior facing piece 423A, and the upper and lower projection pieces 424A and 425A form a hollow portion 420C along the X-axis direction. A door roller 421 is provided on this metal horizontal frame 42A, which is slidably mounted on the lower rail 221 and slidably contacts the aforementioned airtight material 223. The resin horizontal frame 42B has an upper exterior facing piece 421B (exterior piece), a lower exterior facing piece 422B (exterior piece), and an interior facing piece 423B (interior piece) extending in the Y-axis direction, and a projection piece 424B, 425B, and 426B extending in the Z-axis direction. The upper projection piece 424B is continuous with the upper exterior facing piece 421B and the interior facing piece 423B, the intermediate projection piece 425B is continuous with the upper exterior facing piece 421B, the lower exterior facing piece 422B, and the interior facing piece 423B, and the lower projection piece 426B is continuous with the lower exterior facing piece 422B and the interior facing piece 423B. The projection piece 424B extends outward from the upper exterior projection piece 421B, and this extended portion is configured as an engaging portion that engages with the upper interior projection piece 422A of the metal horizontal frame 42A. The lower exterior projection piece 422B is provided with an engaging portion that engages with the engaging portion formed on the lower interior projection piece 423A of the metal horizontal frame 42A. Furthermore, the upper exterior projection piece 421B, the interior projection piece 423B, and the projection pieces 424B, 425B are portions that form a hollow portion 420D along the X-axis direction, while the lower exterior projection piece 422B, the interior projection piece 423B, and the projection pieces 425B, 426B are portions that form a hollow portion 420E along the X-axis direction. This resin horizontal frame 42B covers the metal horizontal frame 42A from the interior side and also forms the aforementioned hollow sections 420D and 420E, thereby improving the insulation performance both inside and outside the room. In this lower frame 42, a hollow portion 420F is formed between the metal horizontal frame 42A and the resin horizontal frame 42B, oriented along the X-axis.

[0018] As shown in Figure 3, the door frame 43 is constructed by combining a metal vertical frame 43A, which is made of metal, or in this embodiment, aluminum, and a resin vertical frame 43B, which is made of resin, with the metal vertical frame 43A positioned on the exterior side and the resin vertical frame 43B positioned on the interior side. The metal vertical frame 43A has an exterior facing piece 431A extending in the X-axis direction, an interior facing piece 432A on the inner circumference side, and an interior facing piece 433A on the outer circumference side, an inner and outer circumference projection piece 434A, 435A extending in the Z-axis direction, and a continuous piece 436A that is continuous with the projection piece 434A, 435A between the exterior facing piece 431A and the outer circumference interior facing piece 433A. The exterior facing piece 431A extends further inward than the inner circumference projection piece 434A, the projection piece 434A is continuous with the exterior facing piece 431A, the inner circumference interior facing piece 432A, and the outer circumference interior facing piece 433A, and the outer circumference projection piece 435A is continuous with the exterior facing piece 431A and the outer circumference interior facing piece 433A. The exterior facing piece 431A, the interior facing piece 432A on the inner circumference, and the projection piece 434A constitute a surface material holding groove for holding the surface material 47. The exterior facing piece 431A, the projection pieces 434A, 435A, and the continuous piece 436A form the outer hollow portion 430C along the Y-axis, while the outer interior facing piece 433A, the projection pieces 434A, 435A, and the continuous piece 436A form the inner hollow portion 430D along the Y-axis. The resin vertical frame 43B has an exterior facing portion 431B (exterior portion) and an interior facing portion 432B (interior portion) extending in the X-axis direction, and inner and outer circumferential facing portions 433B and 434B along the Z-axis direction. The exterior facing portion 431B extends further outward than the outer circumferential facing portion 434B, and its outer end is configured as an engaging portion that engages with an engaging portion formed on the outer circumferential interior facing portion 433A of the metal vertical frame 43A. The facing portions 433B and 434B are continuous with the exterior facing portion 431B and the interior facing portion 432B. The inner circumferential facing portion 433B extends further outward than the exterior facing portion 431B, and this extended portion is configured as an engaging portion that engages with the inner circumferential interior facing portion 432A of the metal vertical frame 43A. Furthermore, the exterior facing piece 431B, the interior facing piece 432B, and the interior facing pieces 433B, 434B are the parts that form the hollow section 430E along the Y-axis. This resin vertical frame 43B covers the metal vertical frame 43A from the interior side and enhances the insulation performance both inside and outside the building by forming the aforementioned hollow section 430E. In this door frame 43, a hollow portion 430F is formed between the metal vertical frame 43A and the resin vertical frame 43B, oriented along the Y-axis.

[0019] As shown in Figure 3, the exterior meeting stile 44 is constructed by combining a metal vertical stile 44A, formed from an extruded profile of metal, or in this embodiment, aluminum, and a resin vertical stile 44B, formed from an extruded profile of resin. The metal vertical stile 44A is positioned on the exterior side, and the resin vertical stile 44B is positioned on the interior side. The metal vertical frame 44A has an exterior facing portion 441A and an interior facing portion 442A extending in the X-axis direction, inner and outer circumferential facing portions 443A and 444A extending in the Z-axis direction, a continuous portion 445A that is continuous with the facing portions 443A and 444A at an intermediate position between the exterior facing portion 441A and the interior facing portion 442A, and a smoke-repellent portion 446A that extends from the interior facing portion 442A in the -Z-axis direction and is bent in the X-axis direction toward the door edge side of the outer sash 4. The facing portions 443A and 444A are continuous with the exterior facing portion 441A and the interior facing portion 442A. The interior facing piece 442A is provided with a contact portion that abuts against the airtight fin (airtight material) attached to the exterior facing piece 341A of the interior meeting stile 34 mentioned above. The smoke return piece 446A overlaps with the smoke return piece 346A in the Z-axis direction when the sliding window 1 is closed. The exterior facing piece 441A, the interior facing piece 442A, and the inner perimeter facing piece 443A constitute a facing material holding groove that holds the facing material 47. In addition, the exterior facing piece 441A, the facing pieces 443A, 444A, and the continuous piece 445A constitute an exterior hollow section 440C along the Y-axis direction, and the interior facing piece 442A, the facing pieces 443A, 444A, and the continuous piece 445A constitute an interior hollow section 440D along the Y-axis direction. The resin vertical frame 44B has a projection portion 441B oriented in the Z-axis direction that engages with the interior facing portion 442A of the metal vertical frame 44A, and an engaging portion 442B that engages with a contact portion provided on the interior facing portion 442A. On the interior side, the resin vertical frame 44B covers the interior facing portion 442A from the door edge side of the outer sash 4.

[0020] Here, as shown in Figures 4(A) and (B), the dimensions of the resin vertical frames 33B, 43B, and 34B in the Y-axis direction are smaller than the dimensions of the metal vertical frames 33A, 43A, and 34A in the Y-axis direction, and vertical steps are formed between the resin vertical frames 33B, 43B, and 34B and the metal vertical frames 33A, 43A, and 34A at the upper ends 511, 512, 513 and lower ends 521, 522, 523 of the door frame 33, 43 and the inner meeting frame 34.

[0021] In the outer sliding door 4, as shown in Figures 4(A) and 5, one end of the upper frame 41 abuts against the inner side of the door frame 43, the metal vertical frame 43A of the door frame 43 is fixed to the metal horizontal frame 41A of the upper frame 41 with fixing screws, and the resin vertical frame 43B of the door frame 43 and the resin horizontal frame 41B of the upper frame 41 are combined in a so-called spigot structure. This spigot structure is formed by positioning one end of the resin horizontal frame 41B into a notch 50 at the upper end 512 of the door frame 43, which in this embodiment is formed by cutting out a part of the resin vertical frame 43B, namely the exterior visible piece 431B and the interior visible piece 433B (the continuous portion of the exterior visible piece 431B and the interior visible piece 432B). In the outer sliding door 4, as shown in Figure 4(B) and Figure 7, one end of the bottom frame 42 abuts against the inner side of the door frame 43, the metal vertical frame 43A of the door frame 43 is fixed to the metal horizontal frame 42A of the bottom frame 42 with fixing screws, and the resin vertical frame 43B of the door frame 43 and the resin horizontal frame 42B of the bottom frame 42 are combined in a so-called spigot structure. This spigot structure is formed by positioning one end of the resin horizontal frame 42B into a notch 50 at the lower end 522 of the door frame 43, which in this embodiment is formed by cutting out a part of the resin vertical frame 43B, specifically the exterior facing piece 431B and the depth piece 433B. Furthermore, the other ends of the outer meeting stile 44, the upper stile 41, and the lower stile 42 are assembled in roughly the same manner. In this way, the frame of the outer shoji screen 4 is assembled.

[0022] In the interior sliding door 3, as shown in Figure 4(A) and Figure 9, one end of the upper frame 31 abuts against the inner side of the door frame 33, the metal vertical frame 33A of the door frame 33 is fixed to the metal horizontal frame 31A of the upper frame 31 with fixing screws, and the resin vertical frame 33B of the door frame 33 and the resin horizontal frame 31B of the upper frame 31 are joined together in a so-called spigot structure. This spigot structure is formed by positioning one end of the resin horizontal frame 31B into a notch 50 at the upper end 511 of the door frame 33, which in this embodiment is formed by cutting out a part of the resin vertical frame 33B, namely the exterior visible piece 331B and the interior visible piece 333B (the continuous portion of the exterior visible piece 331B and the interior visible piece 332B). In the interior sliding door 3, as shown in Figure 4(B) and Figure 11, one end of the bottom frame 32 abuts against the inner side of the door frame 33, the metal vertical frame 33A of the door frame 33 is fixed to the metal horizontal frame 32A of the bottom frame 32 with fixing screws, and the resin vertical frame 33B of the door frame 33 and the resin horizontal frame 32B of the bottom frame 32 are combined in a so-called spigot structure. This spigot structure is formed by positioning one end of the resin horizontal frame 32B into a notch 50 at the lower end 521 of the door frame 33, which is formed by cutting out a part of the resin vertical frame 33B, in this embodiment the exterior facing piece 331B and the depth piece 333B. In the inner shoji screen 3, as shown in Figure 4(A) and Figure 13, the other end of the upper frame 31 abuts against the inner side of the inner meeting frame 34, the metal vertical frame 34A of the inner meeting frame 34 is fixed to the metal horizontal frame 31A of the upper frame 31 with fixing screws, and the resin vertical frame 34B of the inner meeting frame 34 and the resin horizontal frame 31B of the upper frame 31 are joined together in a so-called spigot structure. This interlocking structure is constructed by positioning the other end of the resin horizontal frame 31B into a notch 50 formed by cutting out a part of the resin vertical frame 34B at the upper end 513 of the inner meeting frame 34, which in this embodiment is the exterior facing piece 341B and the interior facing piece 343B (the continuous portion of the exterior facing piece 341B and the interior facing piece 342B). In the interior sliding door 3, as shown in Figure 4(B) and Figure 15, the other end of the bottom frame 32 abuts against the inner side of the interior meeting frame 34, the metal vertical frame 34A of the interior meeting frame 34 is fixed to the metal horizontal frame 32A of the bottom frame 32 with fixing screws, and the resin vertical frame 34B of the interior meeting frame 34 and the resin horizontal frame 32B of the bottom frame 32 are combined in a so-called spigot structure. This spigot structure is formed by positioning the other end of the resin horizontal frame 32B into a notch 50, which is formed by cutting out a part of the resin vertical frame 34B at the lower end 523 of the interior meeting frame 34, in this embodiment, the exterior facing piece 341B and the interior facing piece 343B. In this way, the frame of the inner shoji screen 3 is assembled.

[0023] In the aforementioned outer sliding door 4, resin caps 61 and 62 are provided on the upper end 512 and lower end 522 of the door frame 43, as shown in Figures 4(A) and (B). Furthermore, in the aforementioned interior sliding door 3, resin caps 63 and 64 are provided at the upper and lower ends of the door frame 33, as shown in Figures 4(A) and (B), and resin caps 65 and 66 are provided at the upper and lower ends of the interior meeting frame 34.

[0024] As shown in Figures 5 and 6, the cap 61 provided on the upper end 512 of the door frame 43 in the outer sliding door 4 integrally includes a covering portion 611 that covers the end face of the resin vertical frame 43B at the upper end 512, a sub-covering portion 612 that is positioned along the interior facing piece 433A on the outer circumference side of the metal vertical frame 43A, a projection 613 that protrudes downward from the covering portion 611, and an insertion portion 614 that protrudes downward from the sub-covering portion 612. The covering portion 611 is formed in a roughly plate-like shape with a flange portion extending in the Z-axis direction at its edge so as to be able to cover the end face of the resin vertical frame 43B, and the sub-covering portion 612 is formed to be continuous with the covering portion 611 and to extend upward so as to be able to partially cover the interior facing portion 433A of the metal vertical frame 43A. The projection 613 has a restricting piece 615 that protrudes from the cover portion 611 in the Y-axis direction and extends along the Z-axis direction, and a reinforcing piece 616 that extends from the restricting piece 615 outward along the X-axis direction. The restricting piece 615 is a flattened piece formed along the Z-axis direction, and a tapered surface 617 is formed at its tip, making the projection 613 tapered. As shown in the upper part of Figure 17(A), the dimension of the restricting piece 615 in the Z-axis direction is equal to or slightly smaller than the dimension of the hollow portion 430E of the resin vertical frame 43B in the Z-axis direction, and is greater than or equal to the dimension in the Z-axis direction from the outer surface of the outer surface piece 411B of the resin horizontal frame 41B to the inner surface of the inner surface piece 412B. Therefore, the formation of the notch 50 releases internal stress, and the restricting piece 615 can restrict the indoor facing piece 432B from deforming and moving beyond a predetermined amount in the +Z axis direction toward the hollow portion 430E, thereby preventing the hollow portion 430E from becoming excessively narrow in the Z axis direction, making it difficult to position one end of the resin horizontal frame 41B in the notch 50. Furthermore, in the installed state where the cap 61 is provided on the upper end portion 512 of the door frame 43, the restricting piece 615 is positioned at a distance in the Z axis direction from one end of the resin horizontal frame 41B of the upper frame 41. Therefore, for example, even if thermal expansion and contraction in the X axis direction occurs in the resin horizontal frame 41B due to temperature changes, thermal expansion and contraction by the amount of this distance can be tolerated. In this embodiment, the restricting piece 615 also contacts the outdoor facing piece 431B, but it may not contact it. If the protrusion 613 does not come into contact with the resin vertical frame 43B, the portion that interferes with the protrusion 613 can be reduced, thereby improving the ease of inserting the protrusion 613 into the hollow portion 430E. The reinforcing piece 616 reinforces the restricting piece 615 by having the configuration described above. The insertion portion 614 is inserted into the hollow portion 430F of the door frame 43 to provide the cap 61 to the upper end portion 512 of the door frame 43, and the claw portion 614A formed on the insertion portion 614 engages with the engagement hole (not shown) formed on the metal vertical frame 43A.

[0025] The cap 62, provided on the lower end 522 of the door frame 43 in the outer sliding door 4, is vertically symmetrical to the cap 61 described above, as shown in Figures 7 and 8. It is installed on the lower end 522 in a manner similar to how the cap 61 is installed on the upper end 512. At the lower end 522, as shown in the lower part of Figure 17(A), it restricts the interior facing piece 432B from deforming and moving beyond a predetermined amount in the +Z axis direction toward the hollow part 430E due to the release of internal stress. Therefore, the components of the cap 62 are appropriately given the same reference numerals as the components of the cap 61, and their detailed explanations are omitted.

[0026] As shown in Figures 9 and 10, the cap 63 provided on the upper end 511 of the door frame 33 in the interior sliding door 3 integrally includes a covering portion 631 that covers the end face of the resin vertical frame 33B at the upper end 511, a sub-covering portion 632 that is positioned along the continuous piece 336A of the metal vertical frame 33A, a projection 633 that protrudes downward from the covering portion 631, and an insertion portion 634 that protrudes downward from the sub-covering portion 632. The covering portion 631 is formed in a roughly plate-like shape with a flange portion extending in the Z-axis direction at its edge so as to be able to cover the end face of the resin vertical frame 43B, and the sub-covering portion 632 is formed to be continuous with the covering portion 631 and to extend upward so as to be able to partially cover the continuous piece portion 336A of the metal vertical frame 33A. The projection 633 has a restricting piece 635 that protrudes from the cover portion 631 in the Y-axis direction and extends along the Z-axis direction, and a reinforcing piece 636 that extends from the restricting piece 635 outward along the X-axis direction. The restricting piece 635 is a flattened piece formed along the Z-axis direction, and a tapered surface 637 is formed at its tip, making the projection 633 tapered. As shown in the upper part of Figure 17(B), the dimension of the restricting piece 635 in the Z-axis direction is equal to or slightly smaller than the dimension of the hollow portion 330D of the resin vertical frame 33B in the Z-axis direction, and is greater than or equal to the dimension in the Z-axis direction from the outer surface of the outer surface piece 311B of the resin horizontal frame 31B to the inner surface of the inner surface piece 312B. Therefore, the formation of the notch 50 releases internal stress, and the restricting piece 635 can restrict the indoor facing piece 332B from deforming and moving beyond a predetermined amount in the +Z axis direction toward the hollow portion 330D, thereby preventing the hollow portion 330D from becoming excessively narrow in the Z axis direction, making it difficult to position one end of the resin horizontal frame 31B in the notch 50. Furthermore, in the installed state where the cap 63 is provided on the upper end 511 of the door frame 33, the restricting piece 635 is positioned at a distance in the Z axis direction from one end of the resin horizontal frame 31B of the upper frame 31. Therefore, for example, even if thermal expansion and contraction in the X axis direction occurs in the resin horizontal frame 31B due to temperature changes, thermal expansion and contraction by the amount of this distance can be tolerated. In this embodiment, the restricting piece 635 is in a non-contact state with respect to the outdoor facing piece 331B with a minute gap between them, but it may be in contact with it. In this embodiment, since there is no contact, the portion of the protrusion 633 that interferes with the resin vertical frame 33B can be reduced, and the ease of inserting the protrusion 633 into the hollow portion 330D can be improved. The reinforcing piece 636 reinforces the restricting piece 635 by having the configuration described above. In addition, the reinforcing piece 636 has a plurality of ribs 636A formed on it, and these ribs 636A abut against the exterior facing piece 331B. The restricting piece 635 described above is positioned at one end of the reinforcing piece 636, and a restricting piece 635A formed in the same way as the restricting piece 635 is provided at the other end of the reinforcing piece 636. The insertion portion 634 is inserted into the hollow portion 330E of the door frame 33 to fix the cap 63 to the upper end portion 511 of the door frame 33, and the claw portion 634A formed on the insertion portion 634 engages with the engagement hole (not shown) formed on the metal vertical frame 33A.

[0027] The cap 64 provided on the lower end 521 of the door frame 33 in the interior sliding door 3, as shown in Figures 11 and 12, is vertically symmetrical to the cap 63 described above, and is installed on the lower end 521 in a manner substantially similar to how the cap 63 is installed on the upper end 512. At the lower end 521, as shown in the lower part of Figure 17(B), it restricts the interior facing piece 332B from deforming and moving beyond a predetermined amount in the +Z axis direction toward the hollow part 330D due to the release of internal stress. Therefore, the components of the cap 64 are appropriately given the same reference numerals as the components of the cap 63, and their detailed explanations are omitted.

[0028] As shown in Figures 13 and 14, the cap 65 provided on the upper end 513 of the inner meeting frame 34 of the inner sliding door 3 integrally includes a covering portion 651 that covers the end face of the resin vertical frame 34B at the upper end 513, a sub-covering portion 652 that is positioned along the continuous piece 345A of the metal vertical frame 34A, a projection 653 that protrudes downward from the covering portion 651, and an insertion portion 654 that protrudes downward from the sub-covering portion 652. The covering portion 651 is formed in a substantially rectangular shape with a flange portion extending in the Z-axis direction at its edge so as to be able to cover the end face of the resin vertical frame 34B, and the sub-covering portion 652 is formed to be continuous with the covering portion 651 and to extend upward so as to be able to cover the continuous piece portion 345A of the metal vertical frame 34A. The projection 653 has a restricting piece 655 that protrudes from the cover portion 631 in the Y-axis direction and extends along the Z-axis direction, and a reinforcing piece 656 that extends from the restricting piece 655 outward along the X-axis direction. The restricting piece 655 is a flattened piece along the Z-axis direction, and a tapered surface 657 is formed at its tip, making the projection 653 tapered. As shown in the upper part of Figure 17(C), the dimension of the restricting piece 655 in the Z-axis direction is equal to or slightly smaller than the dimension of the hollow portion 340E of the resin vertical frame 34B in the Z-axis direction, and is greater than or equal to the dimension in the Z-axis direction from the outer surface of the outer surface piece 311B of the resin horizontal frame 31B to the inner surface of the inner surface piece 312B. Therefore, the formation of the notch 50 releases internal stress, and the restricting piece 655 can restrict the indoor facing piece 342B from deforming and moving beyond a predetermined amount in the +Z axis direction toward the hollow portion 340E, thereby preventing the hollow portion 340E from becoming excessively narrow in the Z axis direction, making it difficult to position the other end of the resin horizontal frame 31B in the notch 50. Furthermore, the restricting piece 655 is positioned at a distance in the Z axis direction from the other end of the resin horizontal frame 31B of the upper frame 31 when the cap 65 is installed on the upper end portion 513 of the inner meeting frame 34. Therefore, for example, even if thermal expansion and contraction occurs in the X axis direction of the resin horizontal frame 31B due to temperature changes, thermal expansion and contraction by the amount of this distance can be tolerated. In this embodiment, the restricting piece 655 is in a non-contact state with respect to the outdoor facing piece 341B with a small gap between them, but it may be in contact with it. In this embodiment, since there is no contact, the portion of the protrusion 653 that interferes with the resin vertical frame 34B can be reduced, and the ease of inserting the protrusion 653 into the hollow portion 340E can be improved. The reinforcing piece 656 reinforces the restricting piece 655 by having the configuration described above. In addition, the reinforcing piece 656 has a plurality of ribs 656A formed on it, and these ribs 656A abut against the exterior facing piece 341B. The restricting piece 655 described above is positioned at one end of the reinforcing piece 656, and a restricting piece 655A formed in the same way as the restricting piece 655 is provided at the other end of the reinforcing piece 656. The insertion portion 654 is a projection that is inserted into the hollow portion 340D of the inner meeting frame 34, thereby fixing the cap 65 to the upper end portion 513 of the inner meeting frame 34.

[0029] The cap 66, provided on the lower end 523 of the inner meeting stile 34 in the inner sliding door 3, is vertically symmetrical to the cap 65 described above, as shown in Figures 15 and 16. It is installed on the lower end 523 in a manner similar to how the cap 65 is installed on the upper end 513. At the lower end 523, as shown in the lower part of Figure 17(C), it restricts the indoor facing piece 342B from deforming and moving beyond a predetermined amount in the +Z axis direction toward the hollow part 340E due to the release of internal stress. Therefore, the components of the cap 66 are appropriately given the same reference numerals as the components of the cap 65, and their detailed explanations are omitted.

[0030] According to the sliding window 1 of this embodiment described above, by providing the aforementioned notches 50, internal stress is released, and the interior facing pieces 332B, 342B, 432B (interior pieces) of the resin vertical frames 33B, 34B, 43B attempt to deform and move outward in the +Z axis direction. This can be restricted by the protrusions 613, 633, 653 of the caps 61, 62, 63, 64, 65, 66. Therefore, it is possible to suppress the difficulty in positioning the ends of the resin horizontal frames 31B and 32B in each notch 50, thereby maintaining the ease of assembly of the frame. Furthermore, even if there are construction errors in each frame material, or if thermal expansion and contraction in the X axis direction occurs in the resin horizontal frames 31B and 32B due to temperature changes, the gap between each protrusion 613, 633, 653 allows for such thermal expansion and contraction. Furthermore, caps 61, 62, 63, 64, 65, and 66 are also designed to prevent cuts caused by the cut edges of the profiled material.

[0031] [Differentiation] In the above embodiment, each notch 50 is formed by cutting out the exterior facing piece 331B and the interior facing piece 333B of the resin vertical frame 33B, the exterior facing piece 341B and the interior facing piece 343B of the resin vertical frame 34B, and the exterior facing piece 431B and the interior facing piece 433B of the resin vertical frame 43B, from the portion that forms the hollow portions 330D, 340E, and 430E. However, it is not limited to this, and for example, each notch 50 may be formed by cutting out only the interior facing piece 333B of the resin vertical frame 33B, the interior facing piece 343B of the resin vertical frame 34B, and the interior facing piece 433B of the resin vertical frame 43B. In the above embodiment, each projection 613, 633, 653 is positioned at a distance in the Z-axis direction from the ends of the resin horizontal frames 31B, 41B and the ends of the resin horizontal frames 32B, 42B. However, the embodiment is not limited to this, and for example, if it is not necessary to consider the thermal expansion and contraction of the resin horizontal frames 31B, 41B and the resin horizontal frames 32B, 42B, each projection 613, 633, 653 may be positioned without such a distance. In the above embodiment, each protrusion 613, 633, 653 has reinforcing pieces 616, 636, 656 that reinforce the restricting pieces 615, 635, 655. However, the embodiment is not limited to this, and if the strength of the restricting pieces 615, 635, 655 is sufficient even without the reinforcing pieces 616, 636, 656, the configuration of the reinforcing pieces 616, 636, 656 may be omitted. In the above embodiment, the frame body assembled from the upper frame 31, lower frame 32, door edge frame 33 and inner meeting frame 34, and the frame body assembled from the upper frame 41, lower frame 42, door edge frame 43 and outer meeting frame 44 are configured with the vertical orientation dominant, but are not limited to this and may be assembled with the horizontal orientation dominant. In this case, notches 50 are formed at the ends of the resin horizontal frames 31B, 32B, 41B, 42B, the ends of the resin vertical frames 33B, 34B, 43B, 44B are placed in the respective notches 50, and caps corresponding to the caps 61 to 66 may be provided at the ends of the resin horizontal frames 31B, 32B, 41B, 42B. In the above embodiment, a sliding window 1 is used as the joinery, in which the outer sash 4 and the inner sash 3 are configured to slide in the X-axis direction. However, the joinery is not limited to this, and any type of joinery in which the aforementioned interlocking structure is configured in the resin portion having a hollow part of the frame may be used, such as sliding windows like single-hung windows, casement windows, or fixed windows.

[0032] [Summary of the invention] (1) The frame assembly structure of the present invention is a frame assembly structure that constitutes a frame of a shoji screen by assembling vertical frames and horizontal frames, wherein the vertical frames include at least a resin vertical frame made of resin, and the horizontal frames include at least a resin horizontal frame made of resin, and one of the resin vertical frames and the resin horizontal frame forms a hollow portion and a notch in which a part of the portion forming the hollow portion is cut out, and the end of the one frame is provided with a cap having a projection that covers the end face of the one frame and is inserted into the hollow portion, and the projection is arranged to restrict deformation and movement toward the hollow portion in the depth direction of the portion forming the hollow portion, and the end of the other frame of the resin vertical frame and the resin horizontal frame is arranged in the notch. According to the frame assembly structure of the present invention, since the protrusions of the caps are arranged as described above, the portion that forms the hollow section where internal stress is released due to the formation of the notch tends to deform and move toward the hollow section in the depth direction, but the aforementioned deformation and movement of the portion that forms the hollow section can be restricted by the protrusions. Therefore, it is possible to suppress the difficulty in positioning the end of the other frame material of the resin vertical frame and resin horizontal frame into the notch formed in one of the frame materials of the resin vertical frame and resin horizontal frame, and the assembly workability of the frame can be maintained. (2) In the frame assembly structure of the present invention, the portion forming the hollow section has an indoor section and an outdoor section, and the indoor section and the outdoor section are formed in a continuous manner, the notch is formed in the continuous portion of the indoor section and the outdoor section and the outdoor section, and the projection may be configured to restrict the deformation movement of the indoor section toward the hollow section in the depth direction. With this configuration, the interior piece, which does not have a notch, tends to have a larger longitudinal dimension of the other frame material of the resin vertical frame and resin horizontal frame than the exterior piece because it is not notched. Therefore, if the interior piece deforms and moves toward the hollow section, causing the hollow section to narrow in the depth direction, it becomes difficult to position the end of the other frame material of the resin vertical frame and resin horizontal frame into the notch formed in one of the frame materials of the resin vertical frame and resin horizontal frame due to the larger dimensions. However, by positioning the aforementioned cap projection into the hollow section, it is possible to suppress the deformation and movement of the interior piece toward the hollow section, which causes the hollow section to narrow in the depth direction. (3) In the frame assembly structure of the present invention, the protrusion may not be in contact with the exterior piece. With this configuration, interference between the outdoor portion and the protrusion of the cap when inserting the cap into the hollow portion can be suppressed, thereby improving the ease of inserting the protrusion into the hollow portion. (4) In the frame assembly structure of the present invention, the projection may be arranged in the longitudinal direction of the other frame material at a distance from the end of the other frame material. With this configuration, for example, even if there are construction errors in the resin vertical frames and resin horizontal frames, or if thermal expansion or contraction occurs in one of the resin vertical frames or resin horizontal frames due to temperature changes, the frame assembly structure can be configured such that thermal expansion or contraction is accommodating in the gap with the protrusion. (5) In the frame assembly structure of the present invention, the projection may have a restricting piece extending in the depth direction and a reinforcing piece extending outward from the restricting piece. With this configuration, the strength of the protrusion can be increased. For example, even if the restricting piece presses strongly against the part forming the hollow section, the restricting piece is reinforced by the reinforcing piece, so deformation of the protrusion can be suppressed. (6) In the frame assembly structure of the present invention, the vertical frame comprises a metal vertical frame which is combined with the resin vertical frame and arranged on the exterior side, and the horizontal frame comprises a metal horizontal frame which is combined with the resin horizontal frame and arranged on the exterior side, and the cap may be configured to continuously cover at least a portion of the end of the resin vertical frame and at least a portion of the end of the metal vertical frame, and at least a portion of one of the end of the resin horizontal frame and at least a portion of the end of the metal horizontal frame. With this configuration, by providing the aforementioned caps, which are made of a single component, to the ends of the vertical and horizontal frames, it is possible to restrict the deformation and movement of the parts that form the aforementioned hollow sections, while covering not only the ends of the resin parts but also at least a portion of the ends of the metal parts. (7) The joinery of the present invention comprises a frame and a shoji screen disposed within the frame, wherein the shoji screen is constructed by assembling an upper frame, a lower frame, left and right vertical frames and a facing material, the upper frame, the lower frame and the left and right vertical frames form a frame that constitutes the frame assembly structure of the present invention described above, the upper frame and the lower frame are horizontal frames in the frame assembly structure, and the left and right vertical frames are vertical frames in the frame assembly structure. According to the joinery of the present invention, it is possible to construct joinery that can exhibit the same effects as those of the frame assembly structure of the present invention described above. [Explanation of Symbols]

[0033] 1...Sliding window (joinery), 2...Window frame (frame body), 21...Upper frame, 211...Upper rail (rail), 212...Retaining groove, 213, 214, 223, 224...Airtight material, 21A, 22A, 23A...Aluminum frame material (metal frame body), 21B, 22B, 23B...Resin frame material (resin frame body), 22...Lower frame, 221, 222...Lower rail (rail), 23...Vertical frame, 3...Inner sash (sash), 31, 41...Upper frame (horizontal frame), 310C, 310D, 310E, 320C, 320D, 320E, 320F, 330C, 330D, 330E, 340C, 340D, 340E, 340F, 410C ,410D,410E,420C,420D,420E,420F,430C,430D,430E,430F,440C,440D…Hollow section, 311A,311B,321A,321B,331A,331B,341A,341B,411A,411B,421A,431A,431B,441A…Outdoor visible section, 312A,312B,322B,332A,332B,342A,342B,412A,412B,423B,432A,432B,433A,442A…Indoor visible section, 313A,313B,314A,314B,323 B,324A,324B,325A,333B,334A,334B,335A,343A,343B,344A,344B,343A ,343B,344A,344B,343A,343B,344A,344B,413A,413B,414A,414B,424A, 424B,425A,425B,426B,433B,434A,434B,435A,441B,443A,444A...Prospect piece part, 315A,336A,345A,346B,415A,426A,436A,445A...Continuous piece part, 315B,415B...Top piece part, 31 A,32A,41A,42A...Metal side stile, 31B,32B,41B,42B...Resin side stile, 32,42...Lower stile (side stile), 321,421... Door wheel, 322A, 422A...Upper interior spotting piece part, 323A,423A...Lower interior spotting piece part, 325B...Slanted piece part, 326B...Lower piece part, 3 3,43…Door frame (vertical frame), 33A,34A,43A,44A…Metal vertical frame, 33B,34B,43B,44B…Resin vertical frame, 335B…Outer perimeter piece, 34…Inner meeting frame (vertical frame), 44…Outer meeting frame (vertical frame), 345B…Extended projection piece, 346A,446A…Smoke deflector piece, 37,47...Face material, 4...Exterior shoji screen (shoji), 411...Rail groove, 421B...Upper room exterior visible piece, 422B...Lower room exterior visible piece, 442B...Engaging piece, 50...Notch, 511, 512, 513...Upper end, 521, 522, 523...Lower end, 61, 62, 63, 64, 65, 66...Cap, 611, 631, 651... Covering part, 612, 632, 652... Sub-covering part, 613, 633, 653... Protruding part, 614, 634, 654... Insertion part, 614A, 634A... Claw part, 615, 635, 635A, 655, 655A... Regulating piece part, 616, 636, 656... Reinforcing piece part, 617, 637, 657... Tapered surface, 636A, 656A... Rib.

Claims

1. A frame assembly structure for a shoji screen, in which vertical and horizontal frames are assembled to form the frame body of the shoji screen. The aforementioned vertical frame comprises at least a resin vertical frame made of resin, The aforementioned horizontal frame comprises at least a resin horizontal frame made of resin, One of the resin vertical frame and the resin horizontal frame forms a hollow section, and a portion of the part forming the hollow section is cut out to form a notch. The end of one of the frame members is provided with a cap having a projection that covers the end surface of the frame member and is inserted into the hollow portion. The projection is positioned to restrict deformation and movement toward the hollow portion in the depth direction of the portion forming the hollow portion. The end of the other frame material of the resin vertical frame and the resin horizontal frame is positioned in the notch. A frame assembly structure characterized by the following features.

2. In the frame assembly structure described in claim 1, The portion forming the hollow section has an indoor portion and an outdoor portion, and the indoor portion and the outdoor portion are formed continuously. The notch is formed in the continuous portion of the indoor piece and the outdoor piece, The projection is configured to restrict the deformation and movement of the interior piece toward the hollow portion in the depth direction. A frame assembly structure characterized by the following features.

3. In the frame assembly structure described in claim 2, The aforementioned protrusion is not in contact with the exterior piece. A frame assembly structure characterized by the following features.

4. In the frame assembly structure described in claim 1, The projection is positioned at a distance from the end of the other frame material in the longitudinal direction of the other frame material. A frame assembly structure characterized by the following features.

5. In the frame assembly structure described in claim 1, The projection has a restricting piece extending in the depth direction and a reinforcing piece extending outward from the restricting piece. A frame assembly structure characterized by the following features.

6. In the frame assembly structure described in claim 1, The aforementioned vertical frame comprises a metal vertical frame which is combined with the resin vertical frame and positioned on the exterior side. The aforementioned horizontal frame includes a metal horizontal frame which is combined with the resin horizontal frame and positioned on the exterior side. The cap is configured to continuously cover at least a portion of either the end of the resin vertical frame or the end of the metal vertical frame, or at least a portion of the end of the resin horizontal frame or the end of the metal horizontal frame. A frame assembly structure characterized by the following features.

7. A joinery comprising a frame and a sliding screen placed within the frame, The aforementioned shoji screen is constructed by assembling an upper frame, a lower frame, left and right vertical frames, and facing materials. The upper frame, the lower frame, and the left and right vertical frames form a frame body that constitutes the frame body assembly structure described in any one of claims 1 to 6. The upper frame and the lower frame are horizontal frames in the assembly structure of the frame body. The aforementioned left and right vertical frames are vertical frames in the assembly structure of the frame body. A type of joinery characterized by its features.

Images