Doors and fittings

The sliding door design addresses the aesthetic issue of visible frames by hiding them behind an opening frame, enhancing design quality and thermal insulation through a frame structure that maintains a consistent appearance.

JP2026076389APending Publication Date: 2026-05-11LIXIL CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
LIXIL CORP
Filing Date
2026-02-25
Publication Date
2026-05-11

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Abstract

It can enhance the aesthetic appeal. [Solution] The present invention provides a sliding door 1 with an external structure comprising a frame 2 formed by framing an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24, and a sliding screen 3 arranged to slide horizontally within the frame 2, wherein an opening frame 20 is formed on the indoor side of one of the left and right regions R2 of the frame 2, along the circumference of an opening 2A that communicates in the indoor-outdoor direction X1, and in the fully closed state P1 of the sliding screen 3, the tips of the frames that form glass holding grooves supporting the glass 35 of the upper, lower, left and right frames 31, 32, 33, 34 are hidden on the outdoor side of the opening frame 20 when viewed from the indoor side.
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Description

Technical Field

[0001] The present invention relates to a fitting.

Background Art

[0002] Conventionally, for example, a sliding door that runs a shoji horizontally along a groove formed in a lower frame of a frame provided in an opening, as shown in Patent Document 1, is known. On the shoji of such a sliding door, a handle portion for running the shoji is formed on the door end frame or the summons frame. When opening the shoji from the closed state, the user hangs a finger on the handle portion and runs the shoji in the opening direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the shoji of a conventional sliding door, a handle portion is provided on the door end frame, and the door end frame is arranged at a position visible from the indoor side when the shoji is closed. Also, during normal use, the shoji is often closed, and since the frame is in a state visible from the indoor side, improvement in design quality is required, and there is room for improvement in that regard.

[0005] The present invention has been made in view of the above-described problems, and an object thereof is to provide a fitting that can enhance design quality.

Means for Solving the Problems

[0006] To achieve the above objective, the door according to the present invention comprises a frame body formed by framing an upper frame, a lower frame, and left and right vertical frames, and a sliding door that is slidably arranged in the left and right direction within the frame body, wherein an opening frame is formed on the indoor side of the frame body along the four sides of an opening that communicates in the indoor and outdoor directions, and is characterized in that, when the sliding door is fully closed, the tip of the frame that forms the inner perimeter end supporting the surface material of the upper, lower, left and right frames is hidden by the opening frame when viewed from the indoor side.

[0007] According to the present invention, when the shoji screen is fully closed, the inner edges of the frames located on the top, bottom, left, and right sides of the shoji screen, as viewed from the inside, are hidden on the outside side of the opening frame that is provided along the four sides of the opening. As a result, as viewed from the inside, the frames of the shoji screen are hidden on the outside side of the opening frame, and only the surface material of the shoji screen is visible from the inside of the opening. Therefore, the aesthetic appeal of the shoji screen when it is fully closed can be improved.

[0008] Furthermore, in the joinery according to the present invention, it is preferable that when the shoji screen is fully open, the door frame is hidden on the outdoor side of the opening frame when viewed from the indoor side.

[0009] In this case, even when the shoji screen is fully open, the door frame is hidden on the outside side of the opening frame, and all the frames are not visible from the inside of the opening. As a result, the appearance of the opening is the same whether the shoji screen is fully closed or fully open, thus improving the aesthetic appeal.

[0010] Furthermore, in the joinery according to the present invention, it is preferable that the amount of retraction when the fully open shoji screen is retracted into the frame is equal to or greater than the left-right dimension of the shoji screen.

[0011] In this case, even when the shoji screen is fully open, the door frame is hidden on the outside side of the opening frame, and all the frames are not visible from the inside of the opening. As a result, the appearance of the opening is the same whether the shoji screen is fully closed or fully open, thus improving the aesthetic appeal.

[0012] Furthermore, the joinery according to the present invention may be characterized in that the shoji screen has a mesh as its surface material and a screen door frame that supports the mesh at its inner peripheral end, and when the screen door is fully closed, the tip of the screen door frame is hidden by the opening frame when viewed from the inside.

[0013] In this case, when the screen door is fully closed, the inner edges of each screen door frame located on the top, bottom, left, and right sides of the screen door, as viewed from the inside, are hidden on the outside side of the opening frame that runs along the perimeter of the opening. As a result, when viewed from the inside, only the screen is visible in the opening, with each screen door frame hidden on the outside side of the opening frame. This improves the aesthetic appeal of the screen door when it is fully closed.

[0014] Furthermore, the joinery according to the present invention comprises a sash shoji screen having a glass surface and a sash frame that supports the glass at its inner peripheral end, and a screen door, wherein, when the sash shoji screen and the screen door are fully closed or fully open, the screen door frame is preferably hidden from view from the indoor side by the sash frame and the opening frame.

[0015] In this case, when viewed from the inside, each screen door frame is hidden on the outside side of the sash frame and opening frame, and only the screen is visible from the inside of the opening. This improves the aesthetic appearance of the screen door and sash screen when they are fully closed. [Effects of the Invention]

[0016] According to the building components of the present invention, the aesthetic appeal can be enhanced. [Brief explanation of the drawing]

[0017] [Figure 1] A perspective view showing a sliding door according to an embodiment of the present invention. [Figure 2] Figure 1 is a front view of a sliding door as seen from the inside, showing the shoji screen in a fully closed state. [Figure 3] Figure 1 is a front view of a sliding door as seen from the inside, showing the shoji screen in its fully open state. [Figure 4] The front view of the sliding door attached to the building as seen from the indoor side, showing the shoji screen in the fully closed state. [Figure 5] The front view of the sliding door attached to the building as seen from the indoor side, showing the shoji screen in the fully open state. [Figure 6] The sectional view taken along the line I-I shown in FIG. 4, which is the horizontal sectional view of the sliding door in the fully closed state. [Figure 7] The sectional view taken along the line II-II shown in FIG. 5, which is the horizontal sectional view of the sliding door in the fully open state. [Figure 8] The sectional view taken along the line III-III shown in FIG. 4, which is the longitudinal sectional view of the sliding door in the fully closed state. [Figure 9] The sectional view taken along the line IV-IV shown in FIG. 5, which is the longitudinal sectional view of the sliding door in the fully open state. [Figure 10] The perspective view showing the configuration of the extrusion mechanism, with the vertical frame cover omitted. [Figure 11] The side view of the extrusion mechanism shown in FIG. 10 as seen from the indoor side. ​​​​​​​​​​​​​​In the fully open state P2, the shoji screen 3 is configured such that, when viewed from the indoor side, all of the top, bottom, left, and right frames 31-34 are hidden on the door pocket side. In other words, the frame body 2 has an external structure in which the structural body K is provided on the indoor side of the first region R1, which is one of the left and right regions (in this embodiment, the right side when viewed from the indoor side), and the opening frame 20 is formed on the indoor side of the second region R2, which is the other side (the left side when viewed from the indoor side), and is provided along the four sides of the opening 2A that communicates in the indoor-outdoor direction X1. Here, the symbol W shown in Figures 6 and 7 represents interior materials, and the symbols T and F shown in Figures 8 and 9 represent ceiling and floor materials, respectively. The interior material W forms the opening 2A of the building, and the opening frame 20 is provided along the opening 2A.

[0021] In the following explanation, the direction connecting the outdoor side and the indoor side will be referred to as the indoor-outdoor direction X1, and the horizontal direction connecting the left and right sides when viewed from the direction in which the opening 2A of the building penetrates the structural frame K will be referred to as the left-right direction X2. Furthermore, each component and part constituting the sliding door 1 will be described using the indoor-outdoor direction X1 and the left-right direction X2 in the position in which it is installed in the opening 2A. In the left-right direction X2, the direction in which the sash 3 is closed will be referred to as the closing direction, and the direction in which it is opened will be referred to as the opening direction.

[0022] As shown in Figures 1 to 3, the frame 2 is formed in a rectangular shape and is an external structure to be placed on the exterior side of a building. The frame 2 has an upper frame 21 and a lower frame 22 that extend in the left-right direction X2, and vertical frames 23 and 24 that connect both ends of the upper frame 21 and both ends of the lower frame 22, respectively, and extend in the up-down direction X3. As shown in Figures 6 and 7, a mullion 25 is provided in the middle section of the left-right direction X2 between the left and right vertical frames 23 and 24. The mullion 25 is connected to the middle section of the left-right direction X2 between the upper frame 21 and the lower frame 22.

[0023] The opening frame 20, provided along the four sides of the opening 2A, is constructed by surrounding its four sides with an upper frame 21 (upper frame cover 21C, described later), a lower frame 22 (lower frame cover 22C, described later), one vertical frame 23 (vertical frame cover 26, described later), and a mullion 25 (mullion cover 25B, described later). Note that the opening frame 20 is a frame member provided in the opening 2A and does not coincide with the opening where the frame body 2 that supports the aforementioned shoji screen 3 so as to be slidable in the left-right direction X2 is provided. That is, as in this embodiment, an opening frame 20 with a mullion 25 provided on one side is applied.

[0024] The pair of vertical frames 23 and 24 are each made of metal such as aluminum alloy. Of the pair of vertical frames 23 and 24, the side facing the door frame 33 of the shoji screen 3 will be referred to as the first vertical frame 23, and the side facing the meeting frame 34 of the shoji screen 3 will be referred to as the second vertical frame 24, and will be described below.

[0025] As shown in Figures 6 and 7, the first vertical frame 23 has an outdoor frame portion 23A that is positioned on the outdoor side and locks the door frame 33 of the sliding door 3 so that it can be opened and closed, and an indoor frame portion 23B that is positioned on the indoor side of the outdoor frame portion 23A and to which a vertical frame cover 26 that forms an opening 2A is attached. On the inner side of the surface of the first vertical frame 23 facing the second vertical frame 24, there is an extrusion mechanism 4 (see Figure 1) that pushes the sash 3 in the fully closed state P1 toward the opening direction.

[0026] The outdoor frame section 23A is provided with a first flange 231 that protrudes in the opening direction and extends in the vertical direction X3. The indoor frame section 23B is provided with second flanges 232 and 233 for fixing the vertical frame cover 26, which protrudes in the opening direction and extends in the vertical direction X3. The outer surface 231a of the first flange 231 on the outdoor side is in contact with the packing 33c (described later) of the door frame 33 of the sliding door 3.

[0027] The vertical frame cover 26 is made of a resin material and is fixed to the second flanges 232 and 233 of the indoor frame portion 23C of the first vertical frame 23 by screw fastening or fitting. The side surface 26a of the vertical frame cover 26 facing the second vertical frame 24 constitutes one of the vertical sides of the opening frame 20 described above and is flush with the opening 2A of the building. The vertical frame cover 26 is provided with a first fin member 261 that protrudes outward at the outdoor corner and extends over the entire length in the vertical direction X3. The first fin member 261 is provided so as to be able to contact the indoor side surface of the door frame 33 of the sliding door 3.

[0028] As shown in Figure 1, a vertically elongated groove extending in the vertical direction X3 is formed on the side surface 26a of the vertical frame cover 26, in the middle portion of the vertical direction X3. Part of the extrusion mechanism 4 (such as the handle member 41), which will be described later, is positioned in this groove.

[0029] The second vertical frame 24 has an outdoor frame portion 24A that is positioned on the outdoor side and locks the meeting frame 34 of the shoji screen 3 so that it can be opened and closed, and an indoor frame portion 24B that is positioned on the indoor side of the outdoor frame portion 24A and to which the building structure K is attached.

[0030] The outdoor frame section 24A is provided with a third flange 241 and a fourth flange 242 that protrude in the closing direction and extend in the vertical direction X3. The indoor frame section 24B is provided with a fifth flange 243 that protrudes in the closing direction in the left-right direction X2 and extends in the vertical direction X3 for fixing the building structure K. The end of the screen door 5 can be locked to the third flange 241.

[0031] A first stopper 244 extending in the vertical direction X3 is provided at the protruding tip of the fourth flange 242. The first stopper 244 is made of an elastic rubber material and, as shown in Figure 7, has the function of temporarily stopping the sliding door 3 by contacting the meeting frame 34 just before the sliding door 3 is fully open P2.

[0032] As shown in Figures 8 and 9, the upper frame 21 has an outdoor upper frame portion 21A that is located on the outdoor side and supports the upper frame 31 of the sliding door 3 so that it can be opened and closed, and an indoor upper frame portion 21B that is located on the indoor side of the outdoor upper frame portion 21A and to which an upper frame cover 21C that forms an opening 2A is attached.

[0033] The outdoor upper frame portion 21A is provided with a flange-shaped screen door rail guide 211 that protrudes downward from the outdoor end face and extends in the left-right direction X2, and a flange-shaped first projection rail portion 212 that protrudes downward from the middle portion in the indoor-outdoor direction X1 and extends in the left-right direction X2. On the indoor side of the first protruding rail portion 212 in the outdoor upper frame portion 21A, an upper frame rail cover 12E capable of housing the damper device 6 described later is provided, and an upper frame recess 213 extending in the left-right direction X2 is also provided.

[0034] The indoor upper frame portion 21B is provided with a sixth flange 214 that protrudes downward from multiple locations (3 locations) and for fixing the upper part of the upper frame cover 21C which extends in the left-right direction X2.

[0035] The upper frame cover 21C and the upper frame rail cover 12E are made of resin material. The upper part of the upper frame cover 21C is fixed to the sixth flange 214 of the indoor upper frame portion 21B by screw fixing or fitting. The lower surface 21a of the upper frame cover 21C forms the lower surface of the opening 2A described above and is flush with the opening 2A of the building. The upper frame cover 21C is provided with a fin member 215 that protrudes diagonally upward toward the outside at the outdoor corner and extends along the entire left-right direction X2. The fin member 215 is provided so as to be able to contact the indoor side surface 31b of the upper frame 31 of the sliding door 3.

[0036] The upper frame rail cover 21E is provided separately from the upper frame cover 21C, has a roughly U-shaped vertical cross-section that opens downwards, and is engaged with the upper frame recess 213, with the upper plate 21c fixed to the top plate 213a of the upper frame recess 213 by screw fixing or fitting.

[0037] The lower frame 22 has an outdoor lower frame portion 22A that is positioned on the outdoor side and supports the lower frame 32 of the sliding door 3 so that it can be opened and closed, and an indoor lower frame portion 22B that is positioned on the indoor side of the outdoor lower frame portion 22A and to which a lower frame cover 22C that forms an opening 2A is attached.

[0038] The lower frame portion 22A on the outdoor side is provided with a flange-shaped screen door rail guide 221 that protrudes upward from the end face on the outdoor side and extends in the left-right direction, and a flange-shaped second projection rail portion 222 that protrudes upward from the middle portion in the indoor-outdoor direction X1 and extends in the left-right direction X2. On the indoor side of the second protruding rail portion 222 in the outdoor lower frame portion 22A, a lower frame rail cover 22E is positioned, and a lower frame recess 223 extending in the left-right direction X2 is provided. The upper edge of the second projection rail portion 222 is mounted on which a roller 36, provided on the lower frame 32 of the sliding door 3, is mounted so that it can move in the indoor / outdoor direction X1 while its movement is restricted.

[0039] The indoor lower frame section 22B is provided with a seventh flange 224 that protrudes downward from multiple locations (3 locations) and is used to fix the lower part and sides of the lower frame cover 22C, which extends in the left-right direction X2.

[0040] The lower frame cover 22C and the lower frame rail cover 22E are made of resin material. The lower part of the lower frame cover 22C is fixed to the seventh flange 224 of the indoor lower frame portion 22B by screw fixing or fitting. The upper surface 22a of the lower frame cover 22C constitutes the upper surface of the opening 2A described above and is flush with the opening 2A of the building. The lower frame cover 22C is provided with a fin member 225 that protrudes diagonally downward toward the outside at the outdoor corner and extends over the entire length in the left-right direction X2. The fin member 225 is provided so as to be able to contact the indoor side surface 32b of the lower frame 32 of the sliding door 3.

[0041] The lower frame rail cover 22E is provided separately from the lower frame cover 22C and is fixed to the lower frame recess 223 by screw fastening or fitting.

[0042] As shown in Figures 6 and 7, the mullion 25 includes a mullion profile 25A that supports the end of the frame K on the first vertical frame 23 side, which is supported by the second vertical frame 24, and a mullion cover 25B that engages with the first vertical frame 23 side of the mullion profile 25A. The vertical member 25A has an inner plate portion 251 with its surface facing the indoor side, a second stopper 252 formed at the outdoor end that restricts the movement of the sliding door 3 in the closing direction, and a cover locking portion 253 provided at the end of the inner plate portion 251 on the first vertical frame 23 side.

[0043] The second stopper 252 is made of a rubber elastic material and, as shown in Figure 7, has the function of temporarily stopping the sliding door 3 by contacting the glass retaining groove of the door frame 33 just before the sliding door 3 is fully open P2.

[0044] The mullion cover 25B is made of a resin material. The side of the mullion cover 25B facing the second vertical frame 24 is secured to the cover locking portion 253 of the mullion profile 25A by screw fastening or fitting. The side 25c of the mullion cover 25B facing the side 26a of the vertical frame cover 26 constitutes the other vertical frame surface of the opening 2A described above, and is flush with the opening 2A of the building. The mullion cover 25B is provided with a fin member 254 that protrudes diagonally outward at the outdoor corner and extends over its entire length in the vertical direction X3. The fin member 254 is provided so as to be able to contact the indoor side surface of the meeting frame 34 of the sliding door 3.

[0045] As shown in Figures 4 and 5, the shoji screen 3 has an upper frame 31 and a lower frame 32 extending in the left-right direction X2, a door edge frame 33 and a meeting frame 34 extending in the up-down direction X3, and glass 35 (panel material) positioned inside these frames 31 to 34. Each of the top, bottom, left, and right frames 31-34 has a roughly U-shaped groove (glass-holding groove G shown in Figures 6 and 9) formed in its cross-section to support the glass 35. The inner circumferential ends of each frame 31-34 (which form the glass-holding groove G in this embodiment) are configured to be hidden on the outdoor side of the opening 2A when viewed from the indoor side. Furthermore, when the shoji screen 3 is fully open (fully open state P2), the door frame 33 is configured so that it is hidden on the outdoor side of the opening frame 20 when viewed from the indoor side. In the first region R1, the amount of retraction when the shoji screen 3 is fully open P2 is set to be equal to or greater than the left-right dimension X2 of the shoji screen 3.

[0046] The glass 35 is fitted in place with its four peripheral edges held in place by a trim strip 351 that is locked to the frames 31-34 within the glass retaining groove G.

[0047] As shown in Figures 6 and 7, when the sliding door 3 is in the fully closed state P1, the end of the door frame 33 on the meeting frame 34 side (the groove tip 33a that forms a groove) is positioned flush with the end face of the opening 2A (the side surface 26a of the vertical frame cover 26) or on the side of the first vertical frame 23, as viewed from the indoor side. The door frame 33 has an outdoor-side profile 33A made of aluminum and provided on the outdoor side, and an indoor-side profile 33B made of resin and provided on the indoor side of the outdoor-side profile 33A. The outdoor-side profile 33A and the indoor-side profile 33B extend in the vertical direction X3 and engage with each other to lock the glass 35.

[0048] The outdoor-side profile 33A has an outer panel portion 331 with its surface facing the outdoors, a first engaging portion 332 formed integrally with the outer panel portion 331 and engaging with the indoor-side profile 33B, and a first glass locking portion 333 provided at the groove tip portion 33a on the meeting frame 34 side of the outer panel portion 331. The outdoor-side profile 33A is provided with a packing 33c that protrudes outwards and extends vertically X3. The packing 33c is made of a rubber elastic material and, when the sash 3 is in a fully closed state P1, is in airtight contact with the outer surface 231a of the first flange 231 of the first vertical frame 23.

[0049] The indoor-side profile 33B has an inner plate portion 334 whose plate surface faces the indoor side, a second engaging portion 335 which is integrally formed with the inner plate portion 334 and engages with the outdoor-side profile 33A, and a second glass locking portion 336 provided at the groove tip 33a on the meeting frame 34 side of the inner plate portion 334. On the meeting frame 34 side between the outdoor profile 33A and the indoor profile 33B, the aforementioned glass retaining groove G for supporting the glass 35 is formed.

[0050] On the first vertical frame 23 side of the outdoor side profile 33A and the indoor side profile 33B, a recess 33b is formed that is recessed toward the meeting stile 34 side. A handle portion 338 is formed in the recess 33b, which protrudes toward the outdoor side from the end face of the indoor side profile 33B on the first vertical frame 23 side. The handle portion 338 is configured so that the user's fingertips can be inserted into the space of the recess 33b when the door frame 33 of the shoji screen 3 is open so that it is on the second vertical frame 24 side than the side surface 26a of the vertical frame cover 26. Furthermore, in the fully closed state P1, as described above, the handle portion 338 is hidden on the outdoor side of the opening frame 20 when viewed from the indoor side, together with the door frame 33, so the user's fingertips cannot be inserted into the space of the recess 33b.

[0051] As shown in Figure 6, in the fully closed state P1 when the sliding door 3 closes the opening 2A, the meeting frame 34 is positioned such that, when viewed from the indoor side, the end of the door frame 33 (the groove tip 34a that forms the groove) is flush with the side of the opening 2A (the side 25c of the mullion cover 25B) or on the side of the second vertical frame 24 (the right side in Figure 6). The meeting stile 34 has a main profile 34A made of aluminum. The main profile 34A extends in the vertical direction X3 and locks the glass 35 in place.

[0052] The main body profile 34A has a rectangular shape in horizontal cross-section, and the groove tip 34a on the door frame 33 side of the outdoor-facing panel surface has a third glass locking portion 342. An airtight packing 343 is provided at the indoor-facing corner of the main profile 34A on the second vertical frame 24 side, protruding inward and extending throughout the entire vertical direction. The airtight packing 343 is made of an elastic rubber material and is in airtight contact with the outer surface of the mullion profile 25A when the sash 3 is in a fully closed state P1. The main body profile 34A has a glass retaining groove G formed on the door frame 33 side for supporting the glass 35.

[0053] As shown in Figures 8 and 9, when the sliding door 3 is in the fully closed state P1, the upper frame 31 is positioned such that its end portion on the lower frame 32 side (the groove tip portion 31a that forms a groove) is flush with or above the side of the opening 2A (the lower surface 21a of the upper frame cover 21C) when viewed from the indoor side.

[0054] The upper frame 31 has an outdoor-side profile 31A provided on the outdoor side and made of aluminum, and an indoor-side profile 31B provided on the indoor side and made of resin. The outdoor-side profile 31A and the indoor-side profile 31B extend in the vertical direction X3 and engage with each other, securing the glass 35 via the trim 351.

[0055] The outdoor-side profile 31A has an outer panel portion 311 with its surface facing the outdoors, a first engaging portion 312 formed integrally with the outer panel portion 311 and engaging with the indoor-side profile 31B, and a first glass locking portion 313 that protrudes downward from the end of the outer panel portion 311 on the lower frame 32 side. Furthermore, the upper part of the outdoor-side profile 31A is provided with a sliding locking portion 317 that can slide in the left-right direction X2 on the first projection rail portion 212 of the upper frame 21.

[0056] The indoor-side profile 31B has an inner plate portion 314 whose plate surface faces indoors, a second engaging portion 315 which is integrally formed with the inner plate portion 314 and engages with the outdoor-side profile 31A, and a second glass locking portion 316 which protrudes downward from the lower end of the inner plate portion 314. The indoor-side profile 31B is located below the damper 6A of the damper device 6, and a latch 6B is provided on its upper surface 31c that is slidable in the left-right direction X2 relative to the damper 6A. The glass retaining groove G described above is formed on the lower frame 32 side of the outdoor side profile 31A and the indoor side profile 31B to support the glass 35.

[0057] As shown in Figures 8 and 9, in the fully closed state P1 where the sliding door 3 closes the opening 2A, the lower frame 32 is positioned such that, when viewed from the indoor side, the end portion on the upper frame 31 side (the groove tip portion 32a that forms the groove) is flush with or below the side of the opening 2A (the upper surface 22a of the lower frame cover 22C).

[0058] The lower frame 32 has an outdoor-side profile 32A provided on the outdoor side and made of aluminum, and an indoor-side profile 32B provided on the indoor side and made of resin. The outdoor-side profile 32A and the indoor-side profile 32B extend in the vertical direction X3 and engage with each other, securing the glass 35 via the trim 351.

[0059] The outdoor-side profile 32A has an outer panel portion 321 with its surface facing the outdoors, a first engaging portion 322 formed integrally with the outer panel portion 321 and engaging with the indoor-side profile 32B, and a first glass locking portion 323 that protrudes upward from the outer panel portion 321. Furthermore, a roller 36 is provided at the lower part of the outdoor side profile 32A, which can travel in the left-right direction X2 along the second projection rail portion 222 of the lower frame 22.

[0060] The indoor-side profile 32B has an inner plate portion 324 whose plate surface faces indoors, a second engaging portion 325 which is integrally formed with the inner plate portion 324 and engages with the outdoor-side profile 32A, and a second glass locking portion 326 which protrudes upward from the inner plate portion 324. The glass retaining groove G described above is formed on the upper frame 31 side of the outdoor side profile 32A and the indoor side profile 32B to support the glass 35.

[0061] As shown in Figures 6 to 9, the screen door 5 (shoji) has screen door frames 51, 52, 53, and 54 arranged on the top, bottom, left, and right sides to support the screen 50 (face material) at its inner circumference end 5a. In the fully closed state of the screen door 5 shown in Figure 7, the tips (inner circumference end 5a) of each screen door frame 51, 52, 53, and 54 are hidden by the opening frame 20 when viewed from the inside. Also, in the fully closed state of the shoji 3 and screen door 5 shown in Figure 7 or the fully open state shown in Figure 8, the screen door frames 51, 52, 53, and 54 are hidden by the frames 31 to 34 of the shoji 3 and the opening frame 20 when viewed from the inside.

[0062] Next, the extrusion mechanism 4 provided in the first vertical frame 23 of the frame will be described in detail based on the drawings. As shown in Figures 10 and 11, the pushing mechanism 4 includes a kick member 40 that pushes the shoji screen 3 in a direction away from the vertical frame in the left-right direction X2, a handle member 41 that is linked to and rotatable with the kick member 40, and a drive mechanism 42 that drives the handle member 41 to be rotatable. The pushing mechanism 4 is positioned in the central part of the first vertical frame 23 in the vertical direction X3 (see Figure 1). This position in the vertical direction X3 is set to an appropriate position that makes it easy for a person opening and closing the shoji screen 3 to grasp and operate the handle member 41 by hand.

[0063] In the first vertical frame 23, a handle member 41 and a drive mechanism 42 are provided on the indoor frame portion 23B, and a kicking member 40 is provided on the outdoor frame portion 23A. The pushing mechanism 4 is positioned so that only a portion of the handle member 41 is exposed from the vertical frame cover 26.

[0064] The handle member 41 is provided so as to be rotatable about a rotation center 41a located at the lower end in the axial direction of the handle, between the storage position Q1 (see Figure 1) and the pushing position Q2 when the shoji screen 3 is kicked out.

[0065] The kick member 40 is integrally mounted coaxially with the rotation center 41a of the handle member 41 via a connecting member and rotates together with the handle member 41. That is, the position of the kick member 40 can be selectively set to a retracted position Q1 and an extended position Q2, similar to the handle member 41. The kick member 40 has a shorter length from the central axis than the handle member 41, and a roller-shaped rotating contact part 401 with a rotation center in the indoor / outdoor direction X1 is rotatably provided at its tip. The kick-out member 40 is configured such that, in the storage position Q1, rotating the handle member 41 causes it to rotate together with the handle member 41, and it comes into contact with the end of the door frame 33 of the fully closed sliding door 3, so that in the push-out position Q2 the sliding door 3 is pushed out in the opening direction. The drive mechanism 42 is configured to return the handle member 41 to its original position (storage position Q1) after the sliding door 3 has been pushed out in the push-out position Q2.

[0066] Next, the operation of the sliding door 1 according to this embodiment will be described. In this embodiment, as shown in Figures 4 and 5, when the shoji screen 3 is fully closed, the glass retaining grooves G of each frame 31-34 located on the top, bottom, left, and right sides of the shoji screen 3, as viewed from the indoor side, are hidden on the outdoor side of the opening frame 20 that forms the opening 2A. In other words, the upper frame 31, lower frame 32, door edge frame 33, and meeting frame 34 of the shoji screen 3 are configured so that they are not exposed to the opening 2A as viewed from the indoor side, thereby suppressing the transfer of heat from these frames 31-34 into the room and improving the thermal insulation performance.

[0067] Furthermore, in this embodiment, as described above, when viewed from the indoor side, each frame 31 to 34 of the shoji screen 3 is hidden on the outdoor side of the opening frame 20, and only the glass 35 of the shoji screen 3 is visible from the indoor side in the opening 2A. Since the appearance of the opening 2A is the same when the shoji screen 3 is fully closed and when it is fully open, the aesthetic appeal of the shoji screen 3 in the fully closed state can be improved.

[0068] Furthermore, in this embodiment, when the sliding door 1 has the shoji screen 3 fully open, the door frame 33 is hidden on the outdoor side of the mullion cover 25B that constitutes the opening frame 20 when viewed from the indoor side. The amount of retraction when the shoji screen 3 is pulled back in the fully open state P2 of the frame 2 is equal to or greater than the left-right dimension X2 of the shoji screen 3. Therefore, even when the shoji screen 3 is fully open, the door frame 33 is hidden on the outdoor side of the opening frame 20, and all the frames 31-34 are not visible from the indoor side of the opening 2A, thus improving the aesthetic appearance.

[0069] Thus, according to the sliding door 1 of this embodiment, it is possible to improve the thermal insulation performance and enhance the aesthetic design.

[0070] Although embodiments of the building components according to the present invention have been described above, the present invention is not limited to the embodiments described above and can be modified as appropriate without departing from the spirit of the invention.

[0071] For example, in this embodiment, when the shoji screen 3 is fully open P2, the door frame 33 is hidden on the outdoor side of the opening frame 20 when viewed from the indoor side, or the amount of retraction when the shoji screen 3 is retracted in the frame 2 in the fully open P2 state is equal to or greater than the left-right dimension of the shoji screen 3. However, the configuration is not limited to each frame 31-34 being hidden on the outdoor side of the opening frame 20 in the fully open P2 state. For example, when the shoji screen 3 is fully open P2, the door frame 33 may be exposed on the inside of the opening frame 20 and visible from the indoor side of the opening 2A.

[0072] Furthermore, in this embodiment, when opening the shoji screen 3 from the fully closed state P1, the shoji screen 3 is opened by using the push mechanism 4 to operate the handle member 41 and rotate the kick member 40 to push out the door frame 33. However, the configuration is not limited to opening the shoji screen 3 using such a push mechanism 4. In short, as long as each frame 31-34 is hidden on the outdoor side of the opening frame 20 in the fully closed state P1, the push mechanism 4 can be omitted, and other configurations can be adopted.

[0073] Furthermore, in this embodiment, the opening frame 20 forming the opening 2A is composed of an upper frame 21, a lower frame 22, a first vertical frame 23, and a mullion 25 forming the frame on all four sides, but the members that constitute the opening frame 20 are not limited to these. For example, the building structure or other building components may constitute the opening frame 20 instead of the mullion 25, or all four sides of the opening 2A may be composed of the building structure or other building components.

[0074] Furthermore, in this embodiment, the shoji screen of the present invention is defined as a shoji screen 3 (sash shoji screen) and a screen door 5, but it is also possible to have a configuration in which only the shoji screen 3 or only the screen door 5 has the leading edge of the frame hidden by the opening frame 20 when viewed from the indoor side.

[0075] Furthermore, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, without departing from the spirit of the present invention. [Explanation of symbols]

[0076] 1. Sliding door (joinery) 2 frame 2A opening 3. Shoji (sash-type shoji screens) 4. Extrusion mechanism 5. Screen door (shoji screen) 5a Inner circumference end 20 Opening frame 21 Upper frame 22 Bottom frame 23 First vertical frame 24 Second vertical frame 31 Upper stile 32 Lower stile 33 Door frame 34 Calling frame 31a, 32a, 33a, 34a Groove tip 35 Glass (facing material) 50 Mesh (Surface Material) 51-54 Screen door frame G Glass retaining groove (inner circumferential end) P1 Fully closed state P2 Fully open X1 Indoor / outdoor direction X2 Left / right direction X3 Up and Down Direction

Claims

1. A single sliding door with an external structure comprising a frame body formed by framing an upper frame, a lower frame, and left and right vertical frames, and a sliding screen arranged within the frame body so as to be slidable in the left and right directions, wherein an opening frame is formed on the indoor side of the frame body along the four sides of an opening that communicates in the indoor and outdoor directions, In the fully closed state of the aforementioned shoji screen, the leading edge of the frame that forms the inner perimeter end supporting the surface material of the top, bottom, left, and right frames is hidden by the opening frame when viewed from the inside.

2. The door frame according to claim 1, wherein, when the shoji screen is fully open, the door frame is hidden by the opening frame when viewed from the inside.

3. The joinery according to claim 1, wherein the amount of retraction when the fully open shoji screen is retracted into the frame is equal to or greater than the left-right dimension of the shoji screen.

4. The aforementioned shoji screen is a screen door having a mesh as its surface material and a screen door frame that supports the mesh at its inner peripheral end. The joinery according to any one of claims 1 to 3, wherein, when the screen door is fully closed, the leading edge of the screen door frame is hidden by the opening frame when viewed from the indoor side.

5. The aforementioned shoji screen comprises a sash shoji screen having a glass surface and a sash frame that supports the glass at its inner peripheral end, and a screen door. The joinery according to claim 4, wherein, when the sash shoji and the screen door are in a fully closed or fully open state, the screen door frame is hidden from view from the indoor side by the sash frame and the opening frame.