JP7781014B2 - Sliding door unit - Google Patents

Description

The present invention relates to a sliding door unit.

Conventionally, knock-down curtain walls have been known in which a standard sash is fitted into a window opening frame formed by a mullion and a transom, and can be fixed to the mullion and transom (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2003-301551

When a standard sash fitted into the window frame of the above-mentioned conventional curtain wall window opening is equipped with a sliding door, the frame through which the sliding door is guided is exposed on the inner periphery of the window opening frame formed by the mullion and transom, and the frame of the shoji screen attached to this frame is also exposed. This increases the visible dimensions around the sash, while narrowing the surface material area only in the opening where the sash is installed, resulting in a loss of design quality.

The present invention was made in consideration of these issues, and its purpose is to provide a sliding door unit that is equipped with a sliding door yet has excellent design.

In order to achieve this object, the sliding door unit of the present invention is provided on a pair of adjacent uprights among a plurality of uprights that are erected at intervals from each other in the left-right direction, and comprises a pair of vertical ribs that protrude from the pair of uprights to the outside, a vertical push edge that is provided on one of the pair of uprights and on the outside of the other adjacent upright on the opposite side of the other of the pair of uprights, horizontal members that are provided to extend in the left-right direction beyond the interval between the pair of vertical ribs and are located above and below the pair of vertical ribs, and a door support that is supported by the horizontal members. and a shoji screen that moves left and right by moving the cross member, and the cross member has a panel storage section in which the upper and lower ends of the panel material are stored, and a guide section located on the outdoor side of the panel storage section that guides the shoji screen, and the panel material is arranged with its ends stored in one of the vertical bones, the vertical push edge, and the upper and lower horizontal members, and the shoji screen closes the opening formed by the pair of vertical bones and the horizontal member when the vertical frame is positioned opposite the pair of vertical bones in the front direction, and opens the opening by moving the panel to the outdoor side.
Other features of the present invention will become apparent from the description of this specification and the accompanying drawings.

This invention makes it possible to provide a sliding door unit that is equipped with a sliding door yet has excellent design.

1 is an external view of a building in which a sliding door unit according to an embodiment of the present invention is installed, viewed from the outdoor side. 2 is a cross-sectional view taken along line AA in FIG. 1. 2 is a cross-sectional view taken along the line BB in FIG. 1. 2 is a cross-sectional view taken along the line CC in FIG. 1. FIG. 3 is an enlarged view of a portion D in FIG. 2. FIG. 3 is an enlarged view of a portion E in FIG. 2. FIG. 3 is an enlarged view of a portion F in FIG. 2 . 8A is an enlarged view of a portion G in FIG. 4, and FIG. 8B is an enlarged view of a portion H in FIG. 9A is an enlarged view of a portion I in FIG. 4, and FIG. 9B is an enlarged view of a portion J in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sliding door unit according to one embodiment of the present invention will now be described with reference to the drawings.
In this embodiment, a sliding door unit 1 as shown in FIG. 1 will be described as an example, which is incorporated into a knock-down curtain wall provided as an exterior wall of a building.

As shown in Figures 1 to 4, the curtain wall that forms the exterior wall of a building comprises vertical battens 31 or vertical beams 3 attached to multiple mullions 2 supported by fasteners on the building's framework; horizontal members 4 and 5 arranged above and below the vertical battens 31 and vertical beams 3 and spanning the multiple mullions 2, vertical battens 31, and vertical beams 3; and double-glazed glass 6 as a surface material arranged in the space S1 (the space on the left in Figure 1) formed by adjacent vertical battens 31 and vertical beams 3 and a pair of adjacent vertical beams 4 and 5. The mullions 2, vertical battens 31, and vertical beams 3 are extruded aluminum members arranged vertically, while the horizontal members 4 and 5 are extruded aluminum members arranged horizontally.

In the following explanation, when the sliding door unit 1 incorporated into the curtain wall is viewed from the outside, the up and down direction is referred to as the up and down direction, the left and right direction is referred to as the left and right direction, and the depth direction, which is the direction between indoors and outdoors, is referred to as the projection direction. Whether it is each part of the sliding door unit 1, or each component that makes up the sliding door unit 1 is in a standalone state, the directions will be specified and explained in terms of the up and down direction, left and right direction, and projection direction when the sliding door unit 1 is incorporated into the curtain wall.

As shown in Figure 2, the sliding door unit 1 of this embodiment is installed in two spaces S1 and S2 that are aligned horizontally. Of the two adjacent spaces S1 and S2, the left-hand space S1 has double-glazed glass 6 arranged therein, forming a fixed window 1a, just like the other spaces S where the sliding door unit 1 is not installed. The right-hand space S2 has an opening 1b formed by vertical frames 3 and upper and lower horizontal members 4 and 5.

The sliding door unit 1 comprises one vertical batten 31 attached to three mullions 2 spaced apart in the left-right direction, two vertical ribs 3, and an upper cross member 4 and a lower cross member 5 connecting the upper and lower ends of the one vertical batten 31 and the two vertical ribs 3, respectively. The vertical batten 31 is attached to the leftmost mullion 2 of the three mullions 2. The vertical rib 32 attached to the central mullion 2 of the three mullions 2 (hereinafter also referred to as the middle vertical rib) forms the fixed window 1a, while the middle vertical rib 32 and the rightmost vertical rib 33 of the three mullions 2 form an opening 1b that can be closed by a shoji screen 7. The upper and lower cross members 4 and 5 are attached between the vertical batten 31 and the right vertical rib 33 and are fixed to the two vertical ribs 32 and 33, respectively. Therefore, the upper and lower horizontal members 4, 5 and the two vertical frames 32, 33 of the sliding door unit 1 can be attached to the mullions 2 in a pre-joined state.

As shown in Figure 5, the mullion 2 has a roughly rectangular main body 2a and two protrusions 2b and 2c that protrude from the main body 2a toward the exterior. The two protrusions 2b and 2c are spaced apart in the left-right direction.

The left protruding portion 2b, located on the left side, has a left extending portion 2d that extends outdoors from the visible surface on the left side of the main body portion 2a, a left opposing portion 2e that is located on the right side of the left extending portion 2d and faces it at a distance, and a left outdoor surface portion 2f that connects the outdoor ends of the left extending portion 2d and left opposing portion 2e and forms the visible surface.

The right protrusion 2c, located on the right side, has a right extension 2g that extends outdoors from the visible surface on the right side of the main body 2a, a right opposing portion 2h that is located on the left side of the right extension 2g and faces it at a distance, and a right outdoor surface portion 2i that connects the outdoor ends of the right extension 2g and right opposing portion 2h and forms the visible surface.

The left opposing portion 2e of the left protruding portion 2b and the right opposing portion 2h of the right protruding portion 2c face each other with a gap in the left-right direction, and each protrudes on the opposing side and is provided with an engagement portion 2j with which the vertical push edge 31 or vertical bone 3 engages.

Back-up material locking portions 2k that protrude outdoors and lock onto the backup material 8 are provided on the left ends of the left outdoor surface portion 2f and the right outdoor surface portion 2i. Of the two mullions 2 on which the pair of vertical ribs 32, 33 that form the opening 1b are provided, the middle vertical rib 32 is locked to the backup material locking portion 2k provided on the right outdoor surface portion 2i of the mullion 2 located on the left side (hereinafter also referred to as the left mullion), and the right vertical rib 33 is locked to the backup material locking portion 2k provided on the right outdoor surface portion 2i of the mullion 2 located on the right side (hereinafter also referred to as the right mullion).

As shown in Figure 2, the vertical ledge 31 also forms the right-hand vertical ledge 31 that constitutes the fixed window 9 in the space S3, which is adjacent to the two spaces S1 and S2 in which the sliding door unit 1 is installed, and the same vertical ledge 31 is also used on the left-hand side that constitutes the adjacent fixed window 9. With the exception of the spaces S1 and S2 in which the sliding door unit 1 is installed, the left and right vertical ledges 31 that form the space S in which the fixed window 9 is installed are the same components as the vertical ledges 31 in the sliding door unit 1.

The vertical batten 31 comprises a plate-shaped vertical batten plate portion 31a that forms the projection surface, a vertical batten side engagement portion 31b that is provided on the indoor side of the vertical batten plate portion 31a and engages with the engagement portion 2j of the mullion 2, and a vertical batten outdoor portion 31c that is provided on the outdoor end of the vertical batten plate portion 31a. With the vertical batten side engagement portion 31b engaged with the engagement portion 2j, the vertical batten plate portion 31a extends along the projection direction approximately in the center between the left opposing portion 2e and the right opposing portion 2h.

The vertical batten outdoor portion 31c has a rectangular cross section that is elongated in the left-right direction, with the outdoor end of the vertical batten plate portion 31a connected to its left-right center. The left-right width W1 of the vertical batten outdoor portion 31c is approximately the same as the left-right width W2 of the upright 2. Therefore, the vertical batten outdoor portion 31c overlaps the upright 2 in the forward direction with the vertical batten side engaging portion 31b engaged with the engaging portion 2j. In other words, the vertical batten 31 does not protrude to the left or right of the upright 2. The vertical batten outdoor portion 31c is also positioned left and right from the vertical batten plate portion 31a, with the portion to the left of the vertical batten plate portion 31a facing the left outdoor surface portion 2f of the left extension portion 2d, and the portion to the right of the vertical batten plate portion 31a facing the right outdoor surface portion 2i of the right extension portion 2g.

The right peripheral edge of the double-glazed glass 6 that constitutes the fixed window 1a is accommodated on the left side of the vertical shim 31 between the portion of the outdoor vertical shim 31c to the left of the vertical shim plate 31a and the left outdoor surface 2f, and the double-glazed glass 6 is held in place between the portion of the outdoor vertical shim 31c to the left of the vertical shim plate 31a and the left outdoor surface 2f and the double-glazed glass 6 via backup material 8 and sealant 10, respectively.

The left peripheral edge of the double-glazed glass 6 that constitutes the fixed window 1a in the sliding door unit 1 is accommodated between the right-hand portion of the vertical embossing plate 31a on the outdoor vertical embossing portion 31c and the right outdoor surface 2i, and the double-glazed glass 6 is held in place between the right-hand portion of the vertical embossing plate 31a on the outdoor vertical embossing portion 31c and the right outdoor surface 2i and the double-glazed glass 6 via backup material 8 and sealing material 10, respectively.

As shown in Figure 6, the central vertical frame 32 has a central vertical frame sighting surface 32a that faces the right outdoor surface 2i of the left mullion 2; a central vertical frame indoor extension 32b that extends indoors from the left end of the central vertical frame sighting surface 32a and engages with the engagement portions 2j of the left protrusion 2b and right protrusion 2c; a central vertical frame sighting surface 32c that extends outdoor from the right end of the central vertical frame sighting surface 32a to form a sighting surface; and an outdoor extension surface 32d that extends leftward from the outdoor end of the central vertical frame sighting surface 32c and has a sighting surface. The left-to-right width of the central vertical frame 32 is approximately the same as the left-to-right width W1 of the vertical ridge outdoor portion 31c and is also approximately the same as the left-to-right width W2 of the mullion 2.

The central vertical frame's visible surface portion 32a has a locking piece 32e that protrudes toward the interior and engages with the backup material locking portion 2k of the left mullion 2. When the engagement portion 2j engages with the left protruding portion 2b and the right protruding portion 2c and the locking piece 32e is locked with the backup material locking portion 2k, the central vertical frame 32 is locked to the left mullion 2.

The outdoor extension surface 32d has a water-stopping material 11 provided on the right end side, facing the central vertical rib projection surface 32c, so that it is exposed to the outdoors. The left end has a left extension portion 32f extending indoors, and a central vertical rib facing portion 32g extending to the right from the indoor end of the left extension portion 32f and facing the left outdoor surface portion 2f of the left protrusion 2b of the left mullion 2 at a distance in the projection direction.

The right peripheral edge of the double-glazed glass 6, which is positioned between the vertical rib 31 and the central vertical rib facing portion 32g of the central vertical rib 32 and the left outdoor facing portion 2f of the left mullion 2, is accommodated between the vertical rib 32 and the vertical rib 31. The double-glazed glass 6 is held between the central vertical rib facing portion 32g and the left outdoor facing portion 2f and the double-glazed glass 6 via backup material 8 and sealant 10, respectively. When the central vertical rib 32 is engaged with the left mullion 2 and holds the double-glazed glass 6, the central vertical rib projection surface portion 32c forms a surface that is flush with the projection surface on the right side of the left mullion 2, and the left extension portion 32f is located on the same plane as the projection surface on the left side of the left mullion 2. Furthermore, the outdoor-facing surface of the outdoor extension surface portion 32d is located on the same plane as the outdoor-facing surface of the vertical rib outdoor portion 31c of the vertical rib 31.

As shown in Figure 7, the right vertical frame 33 has a right vertical frame sight surface 33a that faces the left outdoor surface 2f of the right mullion 2; a right vertical frame indoor extension 33b that extends indoors from the right end of the right vertical frame sight surface 33a and engages with the engagement portion 2j of the left protrusion 2b and the backup material engagement portion 2k; a right vertical frame sight surface 33c that extends outdoor from the left end of the right vertical frame sight surface 33a to form a sight surface; and an outdoor extension surface 33d that extends rightward from the outdoor end of the right vertical frame sight surface 33c and also has a sight surface. The left-to-right width of the right vertical frame 33 is approximately the same as the left-to-right width W1 of the vertical ridge outdoor portion 31c and is also approximately the same as the left-to-right width W2 of the mullion 2.

The right vertical frame 33 is engaged with the right mullion 2 with the right vertical frame interior extension 33b engaged with the engagement portion 2j of the left protrusion 2b and the backup material engagement portion 2k.

The outdoor extension surface 33d has a water-stopping material 11 provided on the left end side of the right vertical frame projection surface 33c so that it is exposed to the outdoors. The right end has a right extension portion 33e that extends indoors, and a right vertical frame facing portion 33f that extends leftward from the indoor side end of the right extension portion 33e and faces the right outdoor surface portion 2i of the right protrusion 2c of the right mullion 2 at a distance in the projection direction.

The left peripheral edge of the double-glazed glass 6, which is placed in the space S4 on the right side of the sliding door unit 1, is accommodated between the right vertical frame facing portion 33f of the right vertical frame 33 and the right outdoor facing portion 2i of the right mullion 2. The double-glazed glass 6 is held between the right vertical frame facing portion 33f, the right outdoor facing portion 2i, and the double-glazed glass 6 via a backup material 8 and a sealant 10, respectively. When the right vertical frame 33 is engaged with the right mullion 2 and holds the double-glazed glass 6, the right vertical frame recessed surface portion 33c forms a surface that is flush with the recessed surface on the left side of the right mullion 2, and the right extension portion 33e is located on the same plane as the recessed surface on the right side of the right mullion 2. Furthermore, the outdoor-facing surface of the outdoor extension surface portion 33d is located on the same plane as the outdoor-facing surface of the vertical ledge outdoor portion 31c of the vertical ledge 31.

As shown in Figure 8(a), the upper cross member (hereinafter referred to as the upper cross member) 4 has an upper vertical joint 4a that has an indoor facing surface and is joined to the mullion 2 via a bracket 12; an upper cross member extension 4b that extends outdoors from approximately the vertical center of the upper vertical joint 4a; an upper cross member erection portion 4c that extends upward from the outdoor end of the upper cross member extension 4b; an upper cross member indoor extension portion 4d that extends indoors from the upper end of the upper cross member erection portion 4c; an upper cross member facing portion 4e that hangs downward from the indoor edge of the upper cross member indoor extension portion 4d and faces the upper vertical joint 4a with a gap in the projection direction; an upper cross member upper surface portion 4f that extends approximately horizontally outdoors from the top end of the upper cross member erection portion 4c; and an upper cross member hanging plate portion 4g that hangs from the outdoor end of the upper cross member upper surface portion 4f.

The lower peripheral edge of the double-glazed glass 6, which is placed in the space S5 above the sliding door unit 1, is accommodated between the upper cross member facing portion 4e and the upper vertical joint 4a of the upper cross member 4, and the double-glazed glass 6 is held in place between the upper cross member facing portion 4e and the upper vertical joint 4a and the double-glazed glass 6 via a backup material 8 and a sealant 10, respectively. The outdoor-facing end of the upper cross member extension 4b is provided with an upper ledge fitting portion 4i into which the upper ledge 4h fits.

The upper ledge 4h is fitted into the upper ledge fitting portion 4i provided between the central vertical frame 32 and the vertical ledge 31. The upper end of the double-glazed glass 6 placed between the central vertical frame 32 and the vertical ledge 31 is accommodated between the upper ledge 4h and the upper vertical joint 4a, and the double-glazed glass 6 is held in place between the upper ledge 4h and the upper vertical joint 4a and the double-glazed glass 6 via a backup material 8 and a sealant 10, respectively. Here, the space between the upper ledge 4h and the upper vertical joint 4a corresponds to the panel accommodation portion 4j where the upper end of the double-glazed glass (panel) 6 is accommodated.

As shown in Figure 8(b), an upper closure member 13 is fitted between the middle vertical rib 32 and the right vertical rib 33 of the upper cross member 4 below the upper cross member extension 4b. It connects to the underside of the upper vertical joint 4a to form a flat surface. The outdoor end of the upper closure member 13 is fitted into the upper ledge fitting 4i, and a waterproof material 11 is provided below the upper ledge fitting 4i so that it is exposed to the outdoors.

The upper indoor extension portion 4d and the upper cross member upper surface portion 4f form a connected horizontal plane and are located at the same height as the upper surface of the upper vertical joint portion 4a. Furthermore, when the double-glazed glass 6 is held in place, the outdoor surface of the upper horizontal member standing portion 4c and the outdoor surface of the upper batten 4h are located on the same plane as the outdoor surfaces of the outdoor extension portions 32d, 33d of the middle vertical frame 32 and right vertical frame 33, and the outdoor visible surface of the vertical batten outdoor portion 31c of the vertical batten 31.

The area of the upper cross member 4 facing outdoors beyond the upper cross member erection portion 4c, the upper cross member upper surface portion 4f, and the upper cross member hanging plate portion 4g has a shoji screen receiving portion 4k, which is a groove-shaped opening downward, and is provided over the entire longitudinal length of the upper cross member 4. The shoji screen receiving portion 4k receives the upper end of the shoji screen 7 and serves as a guide for the shoji screen 7 as it slides left and right.

As shown in Figure 9(a), the lower cross member (hereinafter referred to as the lower cross member) 5 has a lower vertical joint 5a that has an indoor facing surface and is joined to the mullion 2 via a bracket 12, a lower cross member extension 5b that extends outdoors from the below the lower vertical joint 5a, and a lower cross member outdoor extension 5c that extends further outdoors from the outdoor end of the lower cross member extension 5b.

A lower ledge fitting portion 5e is provided at the outdoor end of the lower cross member extension portion 5b, into which the lower ledge 5d fits. The lower ledge 5d fits into the lower ledge fitting portion 5e, which is provided between the middle vertical frame 32 and the vertical ledge 31, and the fitted lower ledge 5d faces the lower vertical joint 5a. The lower end of the double-glazed glass 6 placed between the middle vertical frame 32 and the vertical ledge 31 is accommodated between the lower ledge 5d and the lower vertical joint 5a, and the double-glazed glass 6 is held between the lower ledge 5d and the lower vertical joint 5a and the double-glazed glass 6 via backup material 8 and sealant 10, respectively. Here, the space between the lower ledge 5d and the lower vertical joint 5a corresponds to the panel accommodation portion 5f, where the lower end of the double-glazed glass (panel) 6 is accommodated.

As shown in Figure 9(b), a lower blocking member 14 is fitted between the middle vertical rib 32 and the right vertical rib 33 of the lower cross member 5 and on top of the lower cross member extension 5b. It connects to the upper surface of the lower vertical joint 5a to form a flat surface. The outdoor end of the lower blocking member 14 is fitted into the lower ledge fitting 5e, and a waterproof material 11 is provided above the lower ledge fitting 5e so that it is exposed to the outdoors.

When the double-glazed glass 6 is held in place, the exterior surface of the fitted lower ledge 5d is located on the same plane as the exterior surfaces of the exterior extension portions 32d, 33d of the middle vertical rib 32 and right vertical rib 33, and the exterior-facing visible surface of the vertical ledge outdoor portion 31c of the vertical ledge 31.

A rail 5g is provided at approximately the center of the lower cross member's outdoor extension 5c, which is located outside the fitted lower edge 5d, and projects upward and runs left and right. It acts as a guide for the shoji screen 7, which slides left and right.

The shoji screen 7 has a frame body 70 made up of upper and lower horizontal frames 7a and left and right vertical frames 7b joined in a rectangular shape, with the peripheral edge of the double-glazed glass 6 housed within the inner periphery of the frame body 70. A roller 71 is attached to the lower horizontal frame 7a of the shoji screen 7, and the upper horizontal frame 7a is housed in the shoji housing portion 4k of the upper cross member 4. The roller 71 rolls on the rail 5g attached to the lower cross member 5, allowing the shoji screen 7 to slide left and right.

The shoji screen receiving section 4k and the rail 5g of the lower horizontal member outdoor extension 5c are located outside the upper and lower ledges 4h and 5d that hold the double-glazed glass 6, allowing the shoji screen 7 to slide left and right on the outside side of the double-glazed glass 6. Furthermore, the upper horizontal member 4 with the shoji screen receiving section 4k and the lower horizontal member 5 with the rail 5g are located between the vertical ledge 31 and the right vertical frame 33, allowing the shoji screen 7 to move from a closed position in which the left and right vertical frames 7b face the middle vertical frame 32 and right vertical frame 33, respectively, to an open position in which the left and right vertical frames 7b face the fixed window 1a of the sliding door unit 1, leaving most of the opening open. When the shoji screen 7 is in the closed position, the frame 70 abuts against the water-stopping materials 11 attached to the middle vertical frame 32, right vertical frame 33, upper horizontal member 4, and lower horizontal member 5, thereby sealing off water between the frame 70 and the middle vertical frame 32, right vertical frame 33, upper horizontal member 4, and lower horizontal member 5.

The left and right vertical frames 7b of the shoji screen 7 have a width W3 in the left-right direction that is approximately equal to the width W2 of the mullion 2 and the width W1 of the vertical ledges 31 and vertical ribs 3. When the shoji screen 7 is in the closed position, the vertical frames 7b are positioned so that they overlap the mullion 2, vertical ledges 31, and vertical ribs 3 in the forward direction, and do not protrude to the left or right of the mullion 2, vertical ledges 31, and vertical ribs 3.

In the sliding door unit 1 of this embodiment, the horizontal members 4, 5 located above and below the middle vertical frame 32 and the right vertical frame 33 are extended further to the left than the space between the middle vertical frame 32 and the right vertical frame 33. A shoji screen holder 4k and a rail 5g that guide the shoji screen 7 are provided on the outdoor side of the panel holders 4j, 5f, which house the upper and lower ends of the double-glazed glass 6. Therefore, the shoji screen 7 can be moved left and right outside the fixed window 1a to open and close the opening 1b.

In addition, the shoji screen 7 closes the opening 1b formed by the middle vertical frame 32, right vertical frame 33, upper horizontal member 4, and lower horizontal member 5 with the vertical frame 7b positioned opposite the middle vertical frame 32 and right vertical frame 33 in the forward direction. Therefore, when the opening 1b is closed, the vertical frame 7b is positioned opposite the middle vertical frame 32 and right vertical frame 33 in the forward direction, and the vertical frame 7b is unlikely to be exposed to the interior. This makes it possible to provide a sliding door unit 1 with excellent design, even while including a sliding shoji screen 7.

Furthermore, when the shoji screen 7 closes the opening 1b, the vertical frame 7b, whose left-right width W3 is approximately the same as the left-right width W2 of the mullion 2 and the left-right width W1 of the middle vertical frame 32 and right vertical frame 33, does not protrude to the left or right of the mullion 2, middle vertical frame 32, or right vertical frame 33. This makes it possible to narrow the width of the so-called joint where the mullion 2, middle vertical frame 32 or right vertical frame 33, and vertical frame 7b overlap in the forward direction. This results in excellent design aesthetics when viewed from both indoors and outdoors. Furthermore, if the width W3 of the vertical frame 7b is less than the left-right width W2 of the mullion 2 and the left-right width W1 of the vertical edge 31 and vertical frame 3, the vertical frame 7b is less likely to be exposed indoors, thereby more reliably enhancing the design aesthetics.

In addition, when the shoji screen 7 opens the opening 1b, the shoji screen 7 can be moved to a position where the vertical frame 7b faces the vertical ledge 31 and central vertical rib 32 in the forward direction. This makes it possible to narrow the width of the so-called joint where the mullion 2, the vertical ledge 31 or central vertical rib 32, and the vertical frame 7b overlap in the forward direction, even when the shoji screen 7 has the opening 1b open. Therefore, even when the shoji screen 7 has the opening 1b open, it has excellent design when viewed from both indoors and outdoors.

In addition, because the middle vertical frame 32, right vertical frame 33, and upper horizontal member 4 and lower horizontal member 5 can be joined separately from the upright 2, the middle vertical frame 32, right vertical frame 33, and upper horizontal member 4 and lower horizontal member 5 can be joined, for example, in a factory or other facility, and then attached to the upright 2 in this joined state at the construction site. This allows the middle vertical frame 32, right vertical frame 33, and upper horizontal member 4 and lower horizontal member 5 to be joined more accurately, improving workability at the construction site.

In the above embodiment, a sliding door unit 1 was described as an example in which a fixed window 1a and a shoji screen 7 form a single sliding door with a closable opening 1b, and the shoji screen 7 can move left-right from a state in which it closes the opening 1b to a position where it overlaps with the fixed window 1a. However, this is not limited to this. For example, the upper and lower cross members may extend on both sides of the opening in the left-right direction, allowing the shoji screen to move to either side in the left-right direction from a state in which it closes the opening, forming a sliding door unit like a free-standing single sliding door in which the shoji screen can move to a position where it overlaps with the fixed window 1a on either side. In this case, it is possible to provide a sliding door unit that is even easier to use.

Furthermore, the above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. The present invention may be modified or improved without departing from its spirit, and it goes without saying that the present invention also includes equivalents.

The present embodiment includes at least the following inventions.
The structure comprises a pair of vertical ribs provided on a pair of adjacent uprights among a plurality of uprights spaced apart from each other in the left-right direction, the pair of uprights protruding to the exterior side from the pair of uprights; a vertical push edge provided on the exterior side of one of the pair of uprights and the other adjacent upright on the opposite side of the other of the pair of uprights; horizontal members extending in the left-right direction beyond the gap between the pair of vertical ribs and positioned above and below the pair of vertical ribs; and a shoji screen supported by the horizontal members and movable in the left-right direction. The horizontal member has a panel storage section in which the upper and lower ends of the panel member are stored, and a guide section located on the outdoor side of the panel storage section that guides the shoji screen; the panel member is arranged with its ends stored in one of the vertical bones, the vertical push edge, and the upper and lower horizontal members; the shoji screen closes the opening formed by the pair of vertical bones and the horizontal member when the vertical frame is positioned opposite the pair of vertical bones in the front direction, and opens the opening by moving the panel member to the outdoor side.This is a sliding door unit characterized by the above.

With this type of sliding door unit, the horizontal members located above and below a pair of vertical frames extend further left and right than the space between the pair of vertical frames, and a guide section is provided to guide the shoji screen to the outdoor side of the panel housing section that houses the upper and lower ends of the panel, making it possible to open and close the opening by moving the shoji screen left and right on the outdoor side of the panel.

In addition, the shoji screen closes the opening formed by a pair of vertical ribs and horizontal members with the vertical stiles positioned opposite the pair of vertical ribs in the projection direction. Therefore, when the opening is closed, the vertical stiles are positioned opposite the pair of vertical ribs in the projection direction, and are not easily exposed to the interior. This makes it possible to provide a sliding door unit with excellent design, even while still incorporating sliding doors.

In this sliding door unit, the width of the vertical frame in the left-right direction is equal to or less than the width of the upright in the left-right direction, and it does not protrude to the left or right of the upright when the opening is closed.

With this type of sliding door unit, the vertical frame does not protrude to the left or right of the upright when the shoji screen is closed, making it possible to narrow the width of the so-called joint (visible width) where the upright and vertical frame overlap in the front direction. This results in an attractive design when viewed from both indoors and outdoors.

The sliding door unit is characterized in that the pair of vertical frames and the horizontal member can be joined in a state separated from the mullions.
With this type of sliding door unit, the pair of vertical frames and horizontal members can be joined together while separated from the upright, so the vertical frames and horizontal members can be joined together in a facility such as a factory, and then attached to the upright in that joined state at the construction site. This allows for more accurate joining of the vertical frames and horizontal members, and improves workability on site.

In such a sliding door unit, the horizontal member extends beyond the opening on both sides in the left-right direction.
With this type of sliding door unit, the horizontal members extend to both sides of the opening in the left-right direction, so the shoji screen can be moved to either side in the left-right direction when the opening is closed, making it possible to provide a sliding door unit that is easy to use.

1 sliding door unit, 1b opening, 2 post (right and left post) 3 vertical frame,
4 Upper horizontal member, 4j Face material storage section, 4k Shoji storage section,
5 Lower horizontal member, 5f Face material storage section, 5g Rail,
6 double-glazed glass, 7 shoji screen, 7b vertical frame,
31 Vertical edge, 32 Middle vertical bone, 33 Right vertical bone,
W1: Width of the exterior vertical ridge and vertical frame, W2: Width of the mullion, W3: Width of the vertical frame

Claims (4)

a pair of vertical ribs provided on a pair of adjacent uprights among a plurality of uprights spaced apart from each other in the left-right direction, the vertical ribs protruding from the pair of uprights to the outside;
A vertical ridge is provided on the outdoor side of one of the pair of mullions and the other of the pair of mullions adjacent to the other of the pair of mullions on the opposite side of the other mullion;
Horizontal members are provided so as to extend in the left-right direction beyond the interval between the pair of vertical bones and are positioned above and below the pair of vertical bones;
A shoji screen that is supported by the horizontal member and moves left and right;
and
The horizontal member includes a panel receiving section for receiving the upper and lower ends of the panel, and a guide section located on the outdoor side of the panel receiving section for guiding the panel.
It has
The face material is provided with its end portions accommodated in the one vertical rib, the vertical push edge, and the upper and lower horizontal members,
The shoji screen closes the opening formed by the pair of vertical ribs and the horizontal members at a position where the pair of vertical ribs face the pair of vertical ribs in the projection direction, and opens the opening by moving the surface material to the outside .
A sliding door unit characterized in that, when the shoji screen is in a position where it opens the opening, the pair of vertical frames face the vertical push edge and the opposite vertical frame of the pair of vertical frames in the forward direction . The sliding door unit according to claim 1,
The width of the vertical frame in the left-right direction is equal to or less than the width of the upright in the left-right direction,
A sliding door unit characterized in that when the opening is closed, it does not protrude to the left or right of the upright. The sliding door unit according to claim 1 or 2,
A sliding door unit characterized in that the pair of vertical frames and the horizontal members can be joined by only the pair of vertical frames and the horizontal members, separate from the mullions. The sliding door unit according to any one of claims 1 to 3,
The sliding door unit is characterized in that the horizontal member extends to both sides of the opening in the left-right direction.