Attachments and fittings for installing screen doors

Abstract

To provide a screen door mounting attachment and fittings that allow for easy changes in the mounting direction of the screen door. [Solution] The joinery 1 comprises a frame 2, a sliding door 31, a screen door 37, and an attachment 50. The frame 2 has screen door holding parts 21Ad, 21Bc, 21Cc, and 21Dc. The screen door holding parts 21Ad, 21Bc, 21Cc, and 21Dc have first screen door opposing surfaces 21Add, 21Bcb, 21Cc, and 21Dc, which are surfaces facing the interior side of the screen door 37. The attachment 50 is in contact with the frame 2 and the screen door 37. The attachment 50 has second screen door opposing surfaces 50Ae, 50Bc, 50Ce, and 50De, which are surfaces facing the exterior side of the screen door 37. The second screen door opposing surfaces 50Ae, 50Bc, 50Ce, and 50De extend further inward towards the inner circumference of the frame 2 than the first screen door opposing surfaces 21Add, 21Bcb, 21Cc, and 21Dc.

Description

Technical Field

[0001] The present disclosure relates to an attachment for attaching a screen window and a fitting.

Background Art

[0002] Conventionally, for example, there is a fitting including a frame body, a shoji, and a screen window. Among such fittings, for example, there is one in which a screen window is attached to the frame body from the outdoor side (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] After the fitting is installed, it is assumed that the specification of the fitting is to be changed to a specification in which the screen window is attached to the frame body from the indoor side. In that case, it is conceivable to replace the installed frame body with another type of frame body as a whole. However, various labor and costs will occur for the replacement of the frame body.

[0005] An object of the present disclosure is to provide an attachment for attaching a screen window and a fitting that can easily change the attachment direction of the screen window.

Means for Solving the Problems

[0006] The present disclosure is an attachment for attaching a screen window used for a fitting including a frame body, a shoji, and a screen window, the frame body having a screen window holding portion, the screen window holding portion having a first screen window facing surface facing the indoor side surface of the screen window, the attachment being in contact with the frame body and the screen window, and including a second screen window facing surface facing the outdoor side surface of the screen window, the second screen window facing surface extending more toward the inner peripheral side of the frame body than the first screen window facing surface.

[0007] This disclosure relates to a joinery comprising a frame, a sliding door, a screen door, and an attachment for mounting the screen door, wherein the frame has a screen door holding portion, and the screen door holding portion has a first screen door facing surface that faces the interior side surface of the screen door. [Brief explanation of the drawing]

[0008] [Figure 1] This is a front view of the door / window assembly of the embodiment, as seen from the outside. [Figure 2] This is a front view of the door / window from the interior side. [Figure 3] This is a vertical cross-sectional view of the joinery before the attachment of the embodiment is installed. [Figure 4] This is a cross-sectional view of the door / window before the attachment was installed. [Figure 5] This diagram shows how to remove the door or window before the attachment is installed. [Figure 6] This diagram shows how to remove the door or window before the attachment is installed. [Figure 7] This diagram shows how to remove a door or window before the attachment is installed. [Figure 8] This is a vertical cross-section of a door or window with an attachment installed. [Figure 9] This is a cross-sectional view of the left frame of the door / window fixture to which the attachment has been installed. [Figure 10] This is a cross-sectional view of the right frame of the door / window fixture where the attachment is installed. [Figure 11] This diagram shows how to remove a door or window with an attachment attached. [Figure 12] This diagram shows how to remove a door or window with an attachment attached. [Figure 13] This diagram shows how to remove a door or window with an attachment attached. [Figure 14] This is a cross-sectional view of the left frame area of ​​a door or window fitted with the attachment of the first modified example. [Figure 15]Cross-sectional view near the left frame of the fitting equipped with the attachment of the second modification example. [Figure 16] Cross-sectional view near the left frame of the fitting equipped with the attachment of the third modification example. [Figure 17] Cross-sectional view near the left frame of the fitting equipped with the attachment of the fourth modification example.

Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. As shown in FIGS. 1 to 4, the fitting 1 of the present embodiment is provided in the opening 101 of the building 100. The opening 101 is provided, for example, in the outer wall portion W of the building 100. The fitting 1 is provided, for example, on an upper floor of the second floor or higher.

[0010] The fitting 1 is an inward-opening window. The fitting 1 includes a frame body 2 provided in the opening 101 of the building 100, a shoji 31, and a screen door 37.

[0011] In this specification, the “prospective direction” is the thickness direction of the facing material 35 of the shoji 31 and is the direction along the indoor-outdoor direction. The “finding direction” is the direction along the plane direction of the facing material 35 of the shoji 3 and is the direction orthogonal to the prospective direction. The “left-right direction” is the horizontal direction in the finding direction and means the left-right direction when the fitting 1 is viewed from the indoor side. The “finding surface” means the surface extending in the finding direction in the fitting 1. The “prospective surface” means the surface extending in the prospective direction in the fitting 1.

[0012] In this specification, “detachable” means that different members are connected with sufficient strength while being easily detachable and can be connected again in the same manner.

[0013] As shown in FIGS. 1 to 4, the fitting 1 is a refitted fitting formed by performing a modification of attaching a new frame 21 to an existing frame 12 that is already installed in the opening 101. The fitting 1 includes an existing frame 11, an existing frame 12, a base material 14, an outdoor side cover material 19, a new frame 21, an angle 24, an angle cover material 27, a shoji 31, and a screen door 37.

[0014] Note that the frame body 2 is composed of an existing frame 12, a base material 14, an outdoor side cover material 19, a new frame 21, an angle 24, an angle cover material 27, and a parting material 28.

[0015] (Existing frame) The existing frame 11 is provided in the area closer to the indoor side of the opening 101. The existing frame 11 is formed in a rectangular frame shape. The existing frame 11 is composed of wooden plate materials. The existing frame 11 has an existing lower frame 11A, an existing upper frame 11B, an existing left frame 11C, and an existing right frame 11D.

[0016] The existing lower frame 11A is provided at the lower part of the opening 101. The existing lower frame 11A has a long shape with the longitudinal direction in the left - right direction. The existing upper frame 11B is provided at the upper part of the opening 101. The existing upper frame 11B has a long shape with the longitudinal direction in the left - right direction. The existing left frame 11C is provided at the left part of the opening 101. The existing left frame 11C has a long shape with the longitudinal direction in the left - right direction. The existing right frame 11D is provided at the right part of the opening 101. The existing right frame 11D has a long shape with the longitudinal direction in the left - right direction.

[0017] (Existing frame) The existing frame 12 is provided on the inner peripheral side of the opening 101. The existing frame 12 is arranged on the outdoor side of the existing frame 11. The existing frame 12 is formed in a rectangular frame shape. The existing frame 12 is composed of a profile made of aluminum, aluminum - resin composite, or resin. The existing frame 12 is, for example, a frame body for a sliding window. The existing frame 12 has an existing lower frame 12A, an existing upper frame 12B, an existing left frame 12C, and an existing right frame 12D.

[0018] The existing lower frame 12A is installed at the bottom of the opening 101. The existing lower frame 12A has a long, rectangular shape with its longitudinal direction running horizontally. The existing lower frame 12A has an outdoor rail 12Aa and an indoor rail (not shown).

[0019] The exterior rail 12Aa is a rail for the existing shoji screen. The exterior rail 12Aa is installed on the exterior and upper end of the existing lower frame 12A. The exterior rail 12Aa is convex upwards and has a ridge-like shape that extends in the left-right direction.

[0020] Although not shown in the diagram, the indoor rail is for the existing shoji screen and is installed in the middle of the existing lower frame 12A in the depth direction. The indoor rail is convex upwards and has a ridge-like shape that extends in the left-right direction.

[0021] The existing lower frame 12A is provided with a first L-shaped member 12Ac and a second L-shaped member 12Ad.

[0022] The first L-shaped member 12Ac is fixed to the middle of the interior end face of the existing lower frame 12A in the vertical direction, more specifically, by adhesive. The first L-shaped member 12Ac has a roughly L-shape when viewed in the left-right direction. The first L-shaped member 12Ac extends upward parallel to the vertical direction, and further extends inward parallel to the depth direction. The interior end of the first L-shaped member 12Ac rests on the upper surface of the lower frame 2.

[0023] The second L-shaped member 12Ad is fixed to the upper end of the interior-side end face of the existing lower frame 12A, specifically by screw fastening. The second L-shaped member 12Ad has a roughly L-shape when viewed in the left-right direction. The second L-shaped member 12Ad extends upward parallel to the vertical direction, and further extends towards the interior parallel to the depth direction.

[0024] The existing upper frame 12B is installed above the opening 101. The existing upper frame 12B has an elongated shape with its longitudinal direction running horizontally. An L-shaped member 12Bc is provided on the existing upper frame 12B.

[0025] Furthermore, in the existing upper frame 12B, the portion corresponding to the exterior rail 12Aa and interior rail of the existing lower frame 12A is provided with an exterior rail and an interior rail (neither of which are shown) for the existing sash.

[0026] The L-shaped member 12Bc is fixed to the upper part of the interior end face of the existing upper frame 12B, specifically by adhesive. The L-shaped member 12Bc is roughly L-shaped when viewed in the left-right direction. The L-shaped member 12Bc extends downward parallel to the vertical direction, and further extends inward parallel to the depth direction. The interior end of the L-shaped member 12Bc is in contact with the lower surface of the upper frame 2.

[0027] The existing left frame 12C is located on the left side of the opening 101. The existing left frame 12C is elongated with its longitudinal direction in the vertical direction. An L-shaped member 12Ca is provided on the existing left frame 12C.

[0028] The L-shaped member 12Ca is fixed to the left side of the interior end face of the existing left frame 12C, specifically by adhesive. The L-shaped member 12Ca has a roughly L-shape when viewed in the left-right direction. The L-shaped member 12Ca extends parallel to the left-right direction toward the right, and further extends parallel to the depth direction toward the interior. The interior end of the L-shaped member 12Ca is in contact with the right side of the left frame 2.

[0029] The existing right frame 12D is located on the right side of the opening 101. The existing right frame 12D is elongated with its longitudinal direction in the vertical direction. An L-shaped member 12Da is provided on the existing right frame 12D.

[0030] The L-shaped member 12Da is fixed to the right side of the interior end face of the existing right frame 12D, specifically by adhesive bonding. The L-shaped member 12Da has a roughly L-shape when viewed in the left-right direction. The L-shaped member 12Da extends parallel to the left-right direction toward the right, and further extends parallel to the depth direction toward the interior. The interior end of the L-shaped member 12Da is in contact with the right surface of the right frame 2.

[0031] (Base material) The base material 14 is a component that fixes the new frame 21 to the existing frame 12. The base material 14 is provided on the inner circumference side of the existing frame 12. The base material 14 is made of, for example, an aluminum profile. The base material 14 has a lower frame base material 14A, an upper frame base material 14B, a left frame base material 14C, and a right frame base material 14D.

[0032] The lower frame base material 14A is installed above the existing lower frame 12A. The lower frame base material 14A is fixed to the existing lower frame 12A, specifically by screws. The lower frame base material 14A is elongated with its longitudinal direction running horizontally. On the outdoor side of the existing upper frame 12B, the lower frame base material 14A extends upward from a position adjacent to the lower part of the existing upper frame 12B, and further extends to the right on the upper side of the existing upper frame 12B. The indoor end of the lower frame base material 14A overlaps vertically with the vicinity of the right end of the second L-shaped member 12Ad. The outdoor portion of the lower frame base material 14A rests on the outdoor rail 12Aa. The indoor portion of the lower frame base material 14A is fixed to the existing lower frame 12A, specifically by screws. The interior portion of the lower frame base material 14A is fixed to the second L-shaped member 12Ad, specifically by screws.

[0033] The upper frame base material 14B is installed below the existing upper frame 12B. The upper frame base material 14B includes a first upper frame base material 15B and a second upper frame base material 16B.

[0034] The first upper frame base material 15B is installed adjacent to the lower side of the existing upper frame 12B. The upper frame base material 14B is elongated with its longitudinal direction running horizontally. The first upper frame base material 15B extends outward from a position adjacent to the outdoor end of the existing upper frame 12B. The position of the indoor end of the first upper frame base material 15B in the depth direction is approximately the same as the position of the L-shaped member 12Ba provided on the existing upper frame 12B in the depth direction. The first upper frame base material 15B has a visible wall portion 15Ba that protrudes upward. The visible wall portion 15Ba faces the indoor end face of the existing upper frame 12B. The visible wall portion 15Ba is fixed to the existing upper frame 12B, specifically by screws.

[0035] The second upper frame base material 16B is provided below the first upper frame base material 15B. The upper frame base material 14B is elongated with its longitudinal direction running horizontally. The upper frame base material 14B extends from a position on the exterior side of the existing upper frame 12B toward the interior side to a position where it overlaps vertically with the interior end of the first upper frame base material 15B. The second upper frame base material 16B has a visible wall portion 16Ba that protrudes upward.

[0036] Multiple (specifically, three) spacers 17B are provided between the second upper frame base material 16B and the first upper frame base material 15B. Each spacer 17B is shaped like a rectangular plate. The second upper frame base material 16B, each spacer 17B, and the first upper frame base material 15B are inserted through each other by screws. In this way, the second upper frame base material 16B and each spacer 17B are fixed to the first upper frame base material 15B.

[0037] The left frame base material 14C is installed to the right of the existing left frame 12C. The left frame base material 14C has a first left frame base material 15C and a second left frame base material 16C.

[0038] The first left frame base material 15C is installed adjacent to the right side of the existing left frame 12C. The left frame base material 14C is elongated with its longitudinal direction in the vertical direction. The first left frame base material 15C extends from a position adjacent to the outdoor end of the existing left frame 12C toward the outdoor side to a position adjacent to a part of the outdoor side of the new left frame 13C. The outdoor end of the left side of the first left frame base material 15C is fixed to the existing left frame 12C, specifically by adhesive. The first left frame base material 15C has a visible wall portion 15Ca that protrudes toward the left side. The visible wall portion 15Ca faces the indoor end face of the existing left frame 12C. The visible wall portion 15Ca is fixed to the existing left frame 12C, specifically by screws.

[0039] The second left frame base material 16C is located to the right of the first left frame base material 15C. The left frame base material 14C is elongated with its longitudinal direction in the vertical direction. The left frame base material 14C extends from a position on the exterior side of the existing left frame 12C toward the interior side to a position where it overlaps with the interior end of the first left frame base material 15C in the left-right direction.

[0040] Multiple (specifically, three) spacers 17C are provided between the second left frame base material 16C and the first left frame base material 15C. Each spacer 17C is rectangular in shape. The second left frame base material 16C, each spacer 17C, the first left frame base material 15C, and the newly installed left frame 13C are inserted through each other by screws. In this way, the second left frame base material 16C and each spacer 17C are fixed to the first left frame base material 15C. The second left frame base material 16C, each spacer 17C, and the first left frame base material 15C are fixed to the newly installed left frame 13C.

[0041] The right frame base material 14D is installed to the right of the existing right frame 12D. The right frame base material 14D includes a first right frame base material 15D and a second right frame base material 16D.

[0042] The first right frame base material 15D is installed adjacent to the right side of the existing right frame 12D. The right frame base material 14D is elongated with its longitudinal direction in the vertical direction. The first right frame base material 15D extends from a position adjacent to the outdoor end of the existing right frame 12D toward the outdoor side to a position adjacent to a part of the outdoor side of the new right frame 13D. The outdoor end of the right side of the first right frame base material 15D is fixed to the existing right frame 12D, specifically by adhesive. The first right frame base material 15D has a visible wall portion 15Da that protrudes toward the right. The visible wall portion 15Da faces the indoor end face of the existing right frame 12D. The visible wall portion 15Da is fixed to the existing right frame 12D, specifically by screws.

[0043] The second right frame base material 16D is located to the right of the first right frame base material 15D. The right frame base material 14D is elongated with its longitudinal direction in the vertical direction. The right frame base material 14D extends from a position on the exterior side of the existing right frame 12D toward the interior side to a position where it overlaps with the interior end of the first right frame base material 15D in the left-right direction.

[0044] Multiple (specifically three) spacers 17D are provided between the second right frame base material 16D and the first right frame base material 15D. Each spacer 17D is rectangular in shape. The second right frame base material 16D, each spacer 17D, the first right frame base material 15D, and the newly installed right frame 13D are inserted through each other by screws. In this way, the second right frame base material 16D and each spacer 17D are fixed to the first right frame base material 15D. The second right frame base material 16D, each spacer 17D, and the first right frame base material 15D are fixed to the newly installed right frame 13D.

[0045] (Outdoor cover material) The exterior cover material 19 is installed on the exterior side of the existing frame 11 and base material 14. The exterior cover material 19 includes a lower frame exterior cover material 19A, an upper frame exterior cover material 19B, a newly installed left frame 13C, and a right frame exterior cover material 19D.

[0046] The lower frame outdoor cover material 19A is provided on the outdoor side of the existing lower frame 12A and lower frame base material 14A. The lower frame outdoor cover material 19A has a cover body portion 19Aa, a connecting portion 19Ab, and a fin portion 19Ac.

[0047] The cover body portion 19Aa extends downward from a position adjacent to the outdoor and upper end of the lower frame base material 14A on the outdoor side to a position adjacent to the lower part of the outdoor end face of the lower frame base material 14A. The lower frame outdoor cover material 19A is fixed to the outdoor and upper end of the lower frame base material 14A, specifically by screws. The cover body portion 19Aa has a long, elongated shape with its longitudinal direction running horizontally. The cover body portion 19Aa is made of a metal profile, such as aluminum.

[0048] The connecting portion 19Ab is a member that connects the cover body portion 19Aa and the fin portion 19Ac. It extends downward from the lower end of the cover body portion 19Aa and further extends outwards. The connecting portion 19Ab is fixed to the lower end of the cover body portion 19Aa, specifically by screws. The connecting portion 19Ab has an elongated shape with its longitudinal direction in the left-right direction. The connecting portion 19Ab is made of a metal profile, such as aluminum.

[0049] The fin portion 19Ac is fixed to the outdoor-facing and lower end of the connecting portion 19Ab, specifically, it is fitted and fixed. The fin portion 19Ac extends downward from the portion fixed to the connecting portion 19Ab. The lower end of the fin portion 19Ac is located below the lower end of the existing lower frame 12A. The fin portion 19Ac has an elongated shape with its longitudinal direction running horizontally. The fin portion 19Ac is formed of, for example, resin.

[0050] The upper frame outdoor cover material 19B is installed on the outdoor side of the existing upper frame 12B and upper frame base material 14B. The upper frame outdoor cover material 19B has a long shape with the left-right direction as its longitudinal direction. The upper frame outdoor cover material 19B is made of a metal profile such as aluminum. The upper frame outdoor cover material 19B has a hollow portion 19Ba, a visible wall portion 19Bb, and a recessed wall portion 19Bc.

[0051] The hollow section 19Ba is provided at the outer and upper end of the outer cover material 19B of the upper frame. The upper part of the hollow section 19Ba is aligned with the lower part of the existing upper frame 12B in the depth direction. A sealing material made of rubber, resin, or the like is provided between the hollow section 19Ba and the existing upper frame 12B. This enhances airtightness. The hollow section 19Ba has a long cylindrical shape with the left-right direction as its longitudinal direction, and more specifically, it has a roughly rectangular cylindrical shape.

[0052] The visible wall portion 19Bb extends downward from the exterior and lower end of the hollow portion 19Ba. The lower end of the hollow portion 19Ba is aligned with the second upper frame base material 16B in the depth direction. A sealing material made of rubber, resin, or the like is provided between the hollow portion 19Ba and the second upper frame base material 16B. This enhances airtightness.

[0053] The recessed wall portion 19Bc extends inward from the indoor-side and lower end of the hollow portion 19Ba. The recessed wall portion 19Bc is aligned vertically with the outdoor-side portion of the first upper frame base material 15B. The recessed wall portion 19Bc is fixed to the first upper frame base material 15B, specifically by screws.

[0054] The left frame outdoor cover material 19C is installed on the outdoor side of the existing left frame 12C and left frame base material 14C. The left frame outdoor cover material 19C has a long, rectangular shape with the left-right direction as its longitudinal direction. The left frame outdoor cover material 19C is made of a metal profile, such as aluminum. The left frame outdoor cover material 19C has a visible wall portion 19Ca, an internal wall portion 19Cb, and a visible wall portion 19Cc.

[0055] The visible wall portion 19Ca is provided at the outdoor end of the left frame outdoor cover material 19C. The visible wall portion 19Ca extends from a position overlapping with the second left frame base material 16C in the depth direction to a position overlapping with the existing left frame 12C in the depth direction, towards the left. A sealing material made of rubber, resin, or the like is provided between the visible wall portion 19Ca and the second left frame base material 16C. This enhances airtightness.

[0056] The recessed wall portion 19Cb extends inward from the middle of the visible wall portion 19Ca in the left-right direction. The recessed wall portion 19Cb is aligned in the left-right direction with the exterior portion of the first left frame base material 15C. The recessed wall portion 19Cb is fixed to the first lower frame base material 15A, specifically by screws.

[0057] The visible wall portion 19Cc extends to the left from the middle of the depth direction of the recessed wall portion 19Cb. The visible wall portion 19Cc is located slightly to the outside of the exterior end of the existing left frame 12C. The visible wall portion 19Cc faces the existing left frame 12C in the depth direction, and more specifically, it is in contact with it.

[0058] The right frame outdoor cover material 19D is installed on the outdoor side of the existing right frame 12D and right frame base material 14D. The right frame outdoor cover material 19D has a long, rectangular shape with the left-right direction as its longitudinal direction. The right frame outdoor cover material 19D is made of a metal profile, such as aluminum. The right frame outdoor cover material 19D has a visible wall portion 19Da, an internal wall portion 19Db, and a visible wall portion 19Dc.

[0059] The visible wall portion 19Da is provided at the outdoor end of the right frame outdoor cover material 19D. The visible wall portion 19Da extends from a position overlapping with the second right frame base material 16D in the depth direction to a position overlapping with the existing right frame 12D in the depth direction, to the right. A sealing material made of rubber, resin, or the like is provided between the visible wall portion 19Da and the second right frame base material 16D. This enhances airtightness.

[0060] The recessed wall portion 19Db extends inward from the middle of the visible wall portion 19Da in the left-right direction. The recessed wall portion 19Db is aligned in the left-right direction with the exterior portion of the first right frame base material 15D. The recessed wall portion 19Db is fixed to the first lower frame base material 15A, specifically by screws.

[0061] The visible wall portion 19Dc extends to the right from the middle of the depth direction of the recessed wall portion 19Db. The visible wall portion 19Dc is located slightly further outward than the exterior end of the existing right frame 12D. The visible wall portion 19Dc faces the existing right frame 12D in the depth direction, and more specifically, it is in contact with it.

[0062] (Newly established category) The new frame 21 is fixed to the inner circumference of the existing frame 12 via the base material 14. The new frame 21 is formed in a rectangular frame shape. The new frame 21 is made of aluminum profiles. The new frame 21 has a new lower frame 21A, a new upper frame 21B, a new left frame 21C, and a new right frame 21D.

[0063] The newly installed lower frame 21A is provided at the bottom of the opening 101. The newly installed lower frame 21A is provided above the lower frame base material 14A. The newly installed lower frame 21A is fixed to the lower frame base material 14A. The newly installed lower frame 21A has an elongated shape with the left-right direction as its longitudinal direction. The newly installed lower frame 21A has an outdoor extension portion 21Aa, a hollow portion 21Ab, a hollow portion 21Ac, a screen door mounting portion 21Ad, an airtight material mounting portion 21Ae, a lower frame side sash connection portion 21Af, a recessed wall portion 21Ag, and a visible wall portion 21Ah.

[0064] The outdoor extension portion 21Aa is provided at the outdoor and lower end of the newly installed lower frame 21A. The outdoor extension portion 21Aa is adjacent to the upper side of the lower frame base material 14A. The outdoor extension portion extends upward from a position that overlaps with the upper end of the lower frame base material 14A in the depth direction, and further extends inward. The indoor end of the outdoor extension portion 21Aa overlaps with the outdoor end of the lower frame base material 14A in the vertical direction.

[0065] The hollow portion 21Ab is adjacent to the indoor side of the outdoor extension portion 21Aa. The hollow portion 21Ab is adjacent to the upper side of the lower frame base material 14A. A sealing material made of rubber, resin, or the like is provided between the hollow portion 21Ab and the lower frame base material 14A. This enhances airtightness. The hollow portion 21Ab has a long cylindrical shape extending in the left-right direction, and more specifically, it has a polygonal cylindrical shape.

[0066] The hollow section 21Ac is adjacent to the upper side of the hollow section 21Ab. The outdoor end of the hollow section 21Ac roughly overlaps with the outdoor end of the existing lower frame 12A in the vertical direction. The hollow section 21Ac has a long cylindrical shape extending in the left-right direction, and more specifically, it has a polygonal cylindrical shape.

[0067] The screen door mounting portion 21Ad is the part to which the screen door 37 is attached. It is adjacent to the outdoor and upper end of the hollow portion 21Ac. The screen door mounting portion 21Ad has a roughly U-shape that opens upward. The screen door mounting portion 21Ad has a groove shape that extends along the left-right direction. The screen door mounting portion 21Ad has an outdoor screen door opposing portion 21Ada, a bottom portion 21Adb, a convex portion 21Adc, and an indoor screen door opposing portion 21Add.

[0068] The exterior screen door opposing portion 21Ada is provided at the exterior end of the screen door mounting portion 21Ad. The lower end of the exterior screen door opposing portion 21Ada is aligned in the visible direction with a portion slightly to the side of the exterior and upper end of the hollow portion 21Ac. The exterior screen door opposing portion 21Ada extends along the visible direction. The upper end of the exterior screen door opposing portion 21Ada is slightly curved toward the interior.

[0069] The bottom portion 21Adb extends inward from the lower end of the outdoor screen door opposing portion 21Ada. The indoor end of the bottom portion 21Adb is connected to a portion slightly below the upper end of the hollow portion 21Ac. The bottom portion 21Adb has a protrusion 21Adc.

[0070] The protrusion 21Adc is located in the middle of the depth direction of the bottom portion 21Adb. The protrusion 21Adc has a convex shape that is convex upwards.

[0071] The indoor screen door opposing portion 21Add extends upward from the indoor end of the bottom portion 21Adb. The upper end of the indoor screen door opposing portion 21Add is located above the upper end of the outdoor screen door opposing portion 21Ada. The indoor screen door opposing portion 21Add extends along the depth direction. A portion of the indoor screen door opposing portion 21Add constitutes, for example, a portion of the peripheral wall of the hollow portion 21Ac.

[0072] The airtight seal mounting portion 21Ae is provided at the upper end of the indoor side surface of the indoor screen door opposing portion 21Add. An airtight seal 21Aea is provided on the indoor side surface of the airtight seal mounting portion 21Ae. The airtight seal 21Aea is made of, for example, ethylene propylene diene rubber.

[0073] The lower frame side sash connection portion 21Af is the part to which the sash 31 is attached. The lower frame side sash connection portion 21Af is adjacent to the upper side of the hollow portion 21Ac. The lower frame side sash connection portion 21Af is provided in the middle of the depth direction of the newly installed lower frame 21A. The lower frame side sash connection portion 21Af extends upward from the upper surface of the hollow portion 21Ac, and then curves toward the interior while forming an arc that is convex upward. The upper end of the lower frame side sash connection portion 21Af has a simplified letter shape that opens downward.

[0074] The recessed wall section 21Ag is adjacent to the interior side of the hollow section 21Ac. The recessed wall section 21Ag is connected to the upper part of the hollow section 21Ac. The recessed wall section 21Ag extends inward from the part connected to the hollow section 21Ac. The interior end of the recessed wall section 21Ag is located slightly outward from the interior end of the existing lower frame 12A.

[0075] The visible wall portion 21Ah is adjacent to the interior side of the interior wall portion 21Ag. The visible wall portion 21Ah extends upward and downward from the interior end of the interior wall portion 21Ag on both sides. A connecting member 22A is provided at the lower end of the visible wall portion 21Ah. The connecting member 22A is fixed to the visible wall portion 21Ah, specifically by screws.

[0076] The connecting member 22A is a member that connects the lower frame base material 14A and the newly installed lower frame 21A. The connecting member 22A is made of, for example, metal. The connecting member 22A is generally L-shaped. The connecting member 22A extends downward from the portion fixed to the visible wall portion 21Ah, and further extends inward towards the interior. The connecting member 22A is vertically opposed to the lower frame base material 14A. The interior end of the connecting member 22A is fixed to the lower frame base material 14A, specifically by screws. In this way, the newly installed lower frame 21A is fixed to the lower frame base material 14A.

[0077] The newly installed upper frame 21B is provided above the opening 101. The newly installed upper frame 21B has an elongated shape with its longitudinal direction running horizontally. The newly installed upper frame 21B is fixed to the upper frame base material 14B. The newly installed upper frame 21B has an outdoor extension portion 21Ba, a hollow portion 21Bb, a screen door mounting portion 21Bc, an airtight material mounting portion 21Bd, a visible wall portion 21Be, a recessed wall portion 21Bf, and a visible wall portion 21Bg.

[0078] The outdoor extension portion 21Ba is provided at the outdoor end of the newly installed upper frame 21B. The outdoor extension portion 21Ba is located slightly inward from the outdoor end of the upper frame base material 14B. The outdoor extension portion 21Ba is roughly L-shaped. The outdoor extension portion 21Ba extends outward and further downward.

[0079] The hollow portion 21Bb is provided on the indoor side of the outdoor extension portion 21Ba. The hollow portion 21Bb is a long cylindrical shape extending in the left-right direction, and more specifically, it is a polygonal cylindrical shape.

[0080] The screen door mounting section 21Bc is the part to which the screen door 37 is attached. The screen door mounting section 21Bc is adjacent to the lower side of the hollow section 21Bb. The screen door mounting section 21Bc is connected to the part of the hollow section 21Bb that is closer to the outdoor side. The screen door mounting section 21Bc has a roughly U-shape that opens downwards. The screen door mounting section 21Bc has a groove shape that extends along the left-right direction. The screen door mounting section 21Bc has an outdoor screen door opposing section 21Bca and an indoor screen door opposing section 21Bcb.

[0081] The exterior screen door opposing portion 21Bca is provided on the exterior side of the screen door mounting portion 21Bc. The exterior screen door opposing portion 21Bca extends downward from the lower surface of the hollow portion 21Bb. The exterior screen door opposing portion 21Ada extends along the visible direction.

[0082] The indoor screen door opposing portion 21Bcb is provided at a distance from the indoor side of the outdoor screen door opposing portion 21Bca. The outdoor screen door opposing portion 21Bca extends downward from the lower surface of the hollow portion 21Bb. The outdoor screen door opposing portion 21Ada extends along the visible direction. The outdoor screen door opposing portion 21Ada is located below the indoor screen door opposing portion 21Bcb.

[0083] The airtight seal mounting portion 21Bd is provided at the lower end of the indoor side portion 21Bcb of the indoor side screen door opposing portion. An airtight seal 21Bda is provided on the indoor side surface of the airtight seal mounting portion 21Bd. The airtight seal 21Bda is made of, for example, ethylene propylene diene rubber.

[0084] The visible wall portion 21Be extends upward from the interior-side and upper end of the hollow portion 21Bb. The visible wall portion 21Be is in close proximity to or in contact with the first upper frame base material 15B.

[0085] The recessed wall portion 21Bf extends inward from the middle of the interior side of the hollow portion 21Bb in the vertical direction. The interior end of the recessed wall portion 21Bf is roughly aligned vertically with the visible wall portion 16Ba of the second upper frame base material 16B.

[0086] The visible wall portion 21Bg extends upward and downward from the interior-side end of the interior wall portion 21Bf. The upper part of the visible wall portion 21Bg faces the visible wall portion 16Ba of the second upper frame base material 16B in the depth direction. The visible wall portion 21Bg is fixed to the visible wall portion 16Ba, specifically by screws.

[0087] The newly installed left frame 21C is provided on the left side of the opening 101. The newly installed left frame 21C is elongated with its longitudinal direction in the vertical direction. The newly installed upper frame 21B is fixed to the upper frame base material 14B. The newly installed upper frame 21B has an outdoor extension portion 21Ca, a hollow portion 21Cb, an indoor screen door opposing portion 21Cc, and an airtight material mounting portion 21Cd.

[0088] The outdoor extension portion 21Ca is provided at the outdoor end of the newly installed left frame 21C. The outdoor extension portion 21Ca is located on the indoor side of the outdoor end of the left frame base material 14C. The outdoor extension portion 21Ca extends outwards, further to the left, and slightly further inwards. The outdoor extension portion 21Ca engages with a projection formed on the second left frame base material 16C.

[0089] The hollow portion 21Cb is adjacent to the indoor side of the outdoor extension portion 21Ca. The hollow portion 21Cb is a long cylindrical shape extending in the vertical direction, and more specifically, it is roughly rectangular in shape. The outdoor and left end of the hollow portion 21Cb is connected to the outdoor extension portion 21Ca. The hollow portion 21Cb faces the visible wall portion 16Ca of the second left frame base material 16C in the depth direction. The hollow portion 21Cb is fixed to the visible wall portion 16Ca, more specifically, it is screwed in.

[0090] The indoor screen door opposing portion 21Cc extends to the right from the outdoor and right-hand end of the hollow portion 21cb. The indoor screen door opposing portion 21Cc extends along the visible direction.

[0091] The airtight seal mounting section 21Cd is provided at the right end of the indoor side surface of the indoor screen door opposing section 21Cc. An airtight seal 21Cda is provided on the indoor side surface of the airtight seal mounting section 21Cd. The airtight seal 21Cda is made of, for example, ethylene propylene diene rubber.

[0092] The newly installed right frame 21D is provided on the right side of the opening 101. The newly installed right frame 21D is elongated with its longitudinal direction in the vertical direction. The newly installed upper frame 21B is fixed to the upper frame base material 14B. The newly installed upper frame 21B has an outdoor extension portion 21Da, a hollow portion 21Db, an indoor screen door opposing portion 21Dc, and an airtight material mounting portion 21Dd.

[0093] The outdoor extension portion 21Da is provided at the outdoor end of the newly installed right frame 21D. The outdoor extension portion 21Da is located on the indoor side of the outdoor end of the right frame base material 14D. The outdoor extension portion 21Da extends outwards, further to the right, and slightly further inwards. The outdoor extension portion 21Da engages with a projection formed on the second right frame base material 16D.

[0094] The hollow portion 21Db is adjacent to the indoor side of the outdoor extension portion 21Da. The hollow portion 21Db is a long cylindrical shape extending in the vertical direction, and more specifically, it is roughly rectangular in shape. The outdoor and right end of the hollow portion 21Db is connected to the outdoor extension portion 21Da. The hollow portion 21Db faces the visible wall portion 16Da of the second right frame base material 16D in the depth direction. The hollow portion 21Db is fixed to the visible wall portion 16Da, more specifically, it is screwed in.

[0095] The indoor screen door opposing portion 21Dc extends to the right from the outdoor and right-hand end of the hollow portion 21Db. The indoor screen door opposing portion 21Cc extends along the visible direction.

[0096] The airtight seal mounting section 16Dd is provided at the right end of the indoor side surface of the indoor screen door opposing section 16Dc. An airtight seal 16Dda is provided on the indoor side surface of the airtight seal mounting section 16Dd. The airtight seal 16Dda is made of, for example, ethylene propylene diene rubber.

[0097] (angle) The angle 24 is attached to the indoor end of the newly installed frame 21. The angle 24 is made of, for example, resin. The angle 24 is formed in an annular shape, for example. However, the angle 24 does not have to be formed in an annular shape; for example, it may be formed by framing elongated members into a rectangular shape. The angle 24 has a lower frame angle 24A, an upper frame angle 24B, a left frame angle 24C, and a right frame angle 24D.

[0098] The lower frame angle 24A is provided at the bottom of the opening 101. The lower frame angle 24A is elongated and extends in the left-right direction. The lower frame angle 24A extends parallel to the depth direction toward the interior from a position adjacent to the lower frame side sash connection part 21Af, rises upward, and then extends further toward the interior parallel to the depth direction. The lower frame angle 24A extends further inward than the interior end of the newly installed lower frame 21A. The lower frame angle 24A is fixed to the newly installed lower frame 21A, more specifically, it is fixed by the engagement of a projection provided on the lower frame angle 24A with a projection provided on the newly installed lower frame 21A.

[0099] The upper frame angle 24B is provided at the top of the opening 101. The upper frame angle 24B is elongated and extends in the left-right direction. The upper frame angle 24B covers the portion of the newly installed upper frame 21B that is closer to the interior side, and extends further inward than the interior end of the newly installed upper frame 21B. The upper frame angle 24B is fixed to the newly installed upper frame 21B, specifically by the engagement of a projection provided on the upper frame angle 24B with a projection provided on the newly installed upper frame 21B.

[0100] The left frame angle 24C is provided on the left side of the opening 101. The left frame angle 24C is elongated and extends in the vertical direction. The left frame angle 24C covers the portion of the newly installed left frame 21C that is closer to the interior side, and extends further inward than the interior end of the newly installed left frame 21C. The left frame angle 24C is fixed to the newly installed left frame 21C, specifically by the engagement of a projection provided on the left frame angle 24C with a projection provided on the newly installed left frame 21C.

[0101] The right frame angle 24D is provided on the right side of the opening 101. The right frame angle 24D is elongated and extends in the vertical direction. The right frame angle 24D covers the portion of the newly installed right frame 21D that is closer to the interior side, and extends further inward than the interior end of the newly installed right frame 21D. The right frame angle 24D is fixed to the newly installed right frame 21D, specifically by the engagement of a projection provided on the right frame angle 24D with a projection provided on the newly installed right frame 21D.

[0102] (Angle cover material) The angle cover material 27 is a component that conceals the existing frame 12, base material 14, new frame 21, and angle 24 from the interior side. The angle cover material 27 is positioned on the interior side of the existing frame 12, base material 14, new frame 21, and angle 24. The angle cover material 27 is fixed to the angle 24, and more specifically, it is screwed to the lower frame angle 24A and the upper frame angle 24B, respectively. The angle cover material 27 is formed from, for example, resin. The angle cover material 27 is formed by framing long members into a rectangular shape.

[0103] Furthermore, a trim piece 28 is provided on the interior side of the angle cover material 27. The trim piece 28 is a component that fixes the angle cover material 27 to the newly installed frame 13 and also conceals the boundary between the angle cover material 27 and the newly installed frame 13 from the interior side. The trim piece 9 is fixed to both the angle cover material 27 and the newly installed frame 13, and more specifically, it is fixed to the angle cover material 27 with adhesive tape and screwed to the newly installed frame 13. The trim piece 9 is made of, for example, resin. The trim piece 9 has an L-shape in cross-section. The trim piece 9 is formed, for example, by framing a long, rectangular member into a frame.

[0104] The frame 2 comprises a lower frame 2A, an upper frame 2B, a left frame 2C, and a right frame 2D.

[0105] The lower frame 2A is composed of the existing lower frame 12A, the lower frame base material 14A, the lower frame exterior cover material 19A, the new lower frame 21A, the lower frame angle 24A, the portion of the angle cover material 27 that forms the lower edge, and the portion of the trim material 28 that forms the lower edge.

[0106] The upper frame 2B is composed of the existing upper frame 12B, the upper frame base material 14B, the upper frame exterior cover material 19B, the new upper frame 21B, the upper frame angle 24B, the portion of the angle cover material 27 that forms the upper edge, and the portion of the trim material 28 that forms the upper edge.

[0107] The left frame 2C is composed of the existing left frame 12C, the left frame base material 14C, the left frame exterior cover material 19C, the new left frame 21C, the right frame angle 24D, the portion of the angle cover material 27 that constitutes the left side, and the portion of the trim material 28 that constitutes the left side.

[0108] The right frame 2D is composed of the existing right frame 12D, the right frame base material 14D, the right frame exterior cover material 19D, the new right frame 21D, the right frame angle 24D, the portion of the angle cover material 27 that forms the right edge, and the portion of the trim material 28 that forms the right edge.

[0109] (Shoji screen) The shoji screen 31 is installed on the inner circumference side of the newly installed frame 21. The shoji screen 31 opens, for example, towards the interior side. The lower end of the shoji screen 31 is supported by the newly installed frame 21, and the upper end is configured to tilt inward toward the interior side. The shoji screen 31 is a so-called tilt-and-turn shoji screen. The shoji screen 31 has a shoji screen frame 32 and a facing material 35.

[0110] The shoji frame 32 is provided along the inner circumferential surface of the newly installed frame 21. The shoji frame 32 is frame-shaped, and more specifically, rectangular. The shoji frame 32 has a lower frame 32A, an upper frame 32B, a left frame 32C, and a right frame 32D.

[0111] The lower frame 32A is provided at the bottom of the opening 101. The lower frame 32A has an elongated shape with its longitudinal direction running horizontally. The lower frame 32A has an exterior portion 33A and an interior portion 34A.

[0112] The exterior portion 33A is formed of a metal such as aluminum. The exterior portion 33A includes a hollow portion 33Aa, an exterior side material holding portion 33Ab, and a sash-side sash connection portion 33Ac.

[0113] The hollow portion 33Aa is provided at the outdoor and lower end of the outdoor portion. The hollow portion 33Aa is a long cylindrical shape extending in the vertical direction, and more specifically, it is a rectangular cylindrical shape. When the sash 31 is closed, the outdoor side of the hollow portion 33Aa is in contact with the airtight material 21Aea provided on the newly installed lower frame 21A. This enhances the airtightness between the sash 31 and the newly installed lower frame 21A.

[0114] The outdoor side panel holding portion 33Ab extends upward from the outdoor and upper end of the hollow portion 33Aa.

[0115] The shoji-side shoji connection portion 33Ac is the part of the shoji screen 31 that is connected to the newly installed lower frame 21A. The shoji-side shoji connection portion 33Ac has a groove shape that opens downwards. The indoor side and lower end of the shoji-side shoji connection portion 33Ac is folded back toward the outdoor side. The upper end of the lower frame side shoji connection portion 21Af of the newly installed lower frame 21A is inserted into the internal space of the shoji-side shoji connection portion 33Ac. In this way, the shoji-side shoji connection portion 33Ac and the lower frame side shoji connection portion 21Af are connected, and the shoji screen 31 is connected to the newly installed lower frame 21A. The shoji-side shoji connection portion 33Ac and the lower frame side shoji connection portion 21Af function as a hinge. The sliding door 31 is rotatable about a rotation axis extending in the left-right direction, which is formed at the connection point between the sliding door side sliding door connection part 33Ac and the lower frame side sliding door connection part 21Af.

[0116] The indoor portion 34A is provided on the indoor side of the outdoor portion 33A. The indoor portion 34A is fixed to the outdoor portion 33A, more specifically, by the engagement of a protrusion provided on the indoor portion 34A with a recess provided on the outdoor portion 33A. The indoor portion 34A is formed of a different material from the outdoor portion 33A, for example, made of resin. The indoor portion 34A has a hollow portion 34Aa, a hollow portion 34Ab, and an indoor side material holding portion 34Ac.

[0117] The hollow portion 34Aa is provided at the lower end of the indoor portion 34A. The hollow portion 34Aa is adjacent to the hollow portion 33Aa of the outdoor portion 33A and the indoor side of the shoji-side shoji connection portion 33Ac. The hollow portion 34Aa is a long cylindrical shape extending in the vertical direction, and more specifically, it is a rectangular cylindrical shape.

[0118] The hollow portion 34Ab is adjacent to the upper side of the hollow portion 34Aa. The hollow portion 34Ab is adjacent to the indoor side of the hollow portion 33Aa of the outdoor portion 33A. The hollow portion 34Ab has a long cylindrical shape extending in the vertical direction, and more specifically, it has a rectangular cylindrical shape.

[0119] The interior side panel retaining portion 34Ac extends upward from the interior and upper end of the hollow portion 34Ab. The interior side panel retaining portion 34Ac faces the exterior side panel retaining portion 33Ab with a gap in the depth direction. The lower edge of the panel 35 is inserted between the exterior side panel retaining portion 33Ab and the interior side panel retaining portion 34Ac.

[0120] Furthermore, the lower end surface of the interior portion 34A and the lower end surface of the portion of the exterior portion 33A that is on the interior side of the lower frame side sash connection portion 21Af are substantially flush. The lower end surface of the portion of the lower frame 32A that is on the interior side of the lower frame side sash connection portion 21Af extends substantially parallel to the depth direction when the sash 31 is in the closed position.

[0121] Furthermore, in the interior portion 34A, the interior side surface of the hollow portion 34Aa, the interior side surface of the hollow portion 34Ab, and the interior side surface of the interior side material holding portion 34Ac are substantially flush. When the sliding door 31 is closed, the interior side surface of the lower frame 32A extends substantially parallel to the vertical and horizontal directions.

[0122] The upper frame 32B is provided above the opening 101. The upper frame 32B has an elongated shape with its longitudinal direction running horizontally. The upper frame 32B has an exterior portion 33B and an interior portion 34B.

[0123] The outdoor portion 33B is formed of a metal such as aluminum. The outdoor portion 33B has a hollow portion 33Ba and an outdoor side material holding portion 33Bb.

[0124] The hollow portion 33Ba is provided at the outer and lower end of the outer portion. The hollow portion 33Ba is a long cylindrical shape extending in the vertical direction, and more specifically, it is roughly rectangular in shape. When the sash 31 is closed, the outer side of the hollow portion 33Ba is in contact with the airtight material 21Bda provided on the newly installed upper frame 21B. This enhances the airtightness between the sash 31 and the newly installed upper frame 21B.

[0125] The outdoor side panel holding portion 33Bb extends downward from the outdoor and lower end of the hollow portion 33Ba.

[0126] The indoor portion 34B is provided on the indoor side of the outdoor portion 33B. The indoor portion 34B is fixed to the outdoor portion 33B, more specifically, by the engagement of a protrusion on the indoor portion 34B with a recess on the outdoor portion 33B. The indoor portion 34B is formed of a different material from the outdoor portion 33B, for example, made of resin. The indoor portion 34B has a visible wall portion 34Ba and an indoor side material holding portion 34Bb.

[0127] The visible wall portion 34Ba is adjacent to the interior side of the hollow portion 33Ba of the exterior portion 33B. The visible wall portion 34Ba covers the entire vertical area of ​​the hollow portion 33Ba from the interior side.

[0128] Furthermore, a latch portion 41 is provided on the interior side portion 34B. The latch portion 41 is fixed to the interior side surface of the visible wall portion 34Ba. The latch portion 41 has a latch bolt that can extend and retract in the vertical direction. A latch receiving portion 42 that protrudes downward is provided on the lower surface of the upper frame angle 24B. The latch bolt of the latch portion 41 is capable of engaging with the latch receiving portion 42. A sliding door operating portion 44 for opening and closing the sliding door 31 is provided on the interior side surface of the latch portion 41. When the sliding door operating portion 44 is pulled toward the interior, the engagement between the latch portion 41 and the latch receiving portion 42 is released, and the sliding door 31 opens by tilting toward the interior.

[0129] The interior side panel retaining portion 34Bb extends downward from the lower end of the visible wall portion 34Ba. The interior side panel retaining portion 34Bb faces the exterior side panel retaining portion 33Bb with a gap in the depth direction. The upper edge of the facing material 35 is inserted between the interior side panel retaining portion 34Bb and the exterior side panel retaining portion 33Bb.

[0130] The left frame 32C is provided on the left side of the opening 101. The left frame 32C has an elongated shape with its longitudinal direction in the vertical direction. The left frame 32C has an exterior portion 33C and an interior portion 34C.

[0131] The outdoor portion 33C is formed of a metal such as aluminum. The outdoor portion 33C includes an outdoor visible wall portion 33Ca, a hollow portion 33Cb, an indoor visible wall portion 33Cc, and an outdoor side material holding portion 33d.

[0132] The exterior facing wall portion 33Ca is located on the exterior and left end of the exterior portion. The exterior facing wall portion 33Ca faces the airtight material 21Cda of the newly installed left frame 21C in the depth direction. When the shoji screen 31 is closed, the exterior surface of the exterior facing wall portion 33Ca is in contact with the airtight material 21Cda. This enhances the airtightness between the shoji screen 31 and the newly installed left frame 21C.

[0133] The hollow portion 33cb is adjacent to the right side of the exterior facing wall portion 33Ca. The exterior and left end of the hollow portion 33cb is connected to the exterior facing wall portion 33Ca. The hollow portion 33cb is a long cylindrical shape extending in the vertical direction, and more specifically, it is roughly rectangular in shape.

[0134] The interior-facing visible wall portion 33Cc extends from the interior-facing and left-side end of the hollow portion 33cb toward the left.

[0135] The outdoor side panel holding portion 33Cd extends to the right from the outdoor and right-side end of the hollow portion 33Cb.

[0136] The indoor portion 34C is provided on the indoor side of the outdoor portion 33C. The indoor portion 34C is fixed to the outdoor portion 33C, more specifically, by the engagement of a protrusion provided on the outdoor portion 33C with a recess provided on the outdoor portion 33C. The indoor portion 34C is formed of a different material from the outdoor portion 33C, for example, made of resin. The indoor portion 34C has a hollow portion 34Ca, a hollow portion 34cb, a hollow portion 34Cc, and an indoor side material holding portion 34Cd.

[0137] The hollow portion 34Ca is adjacent to the interior side of the exterior facing wall portion 33Ca of the exterior portion 33C. The hollow portion 34Ca is a long cylindrical shape extending in the vertical direction, and more specifically, it is a roughly rectangular cylindrical shape.

[0138] The hollow portion 34Cb is adjacent to the right side of the hollow portion 34Ca. The hollow portion 34cb is adjacent to the indoor side of the indoor facing wall portion 33Cc of the outdoor portion 33C. The hollow portion 34cb is a long cylindrical shape extending in the vertical direction, and more specifically, it is roughly rectangular in shape.

[0139] The hollow portion 34Cc is adjacent to the right side of the hollow portion 34Cb. The hollow portion 34Cc is adjacent to the indoor side of the hollow portion 33cb of the outdoor portion 33C. The hollow portion 34Cc has a long cylindrical shape extending in the vertical direction, and more specifically, it has a roughly rectangular cylindrical shape.

[0140] Furthermore, an arm 46C is provided in the hollow section 34Cc. The arm 46C is a component that connects the frame 2 and the sliding door 31 and holds the sliding door 31 in the open position. The arm 46C is connected to the hollow section 21Cb of the newly installed left frame 21C.

[0141] The interior side panel retaining portion 34Cd extends to the right from the interior and right-hand end of the hollow portion 34Cc. The interior side panel retaining portion 34Cd faces the exterior side panel retaining portion 33Cd with a gap in the depth direction. The left edge of the panel 35 is inserted between the interior side panel retaining portion 34Cd and the exterior side panel retaining portion 33Cd.

[0142] The right frame 32D is provided on the right side of the opening 101. The right frame 32D is elongated with its longitudinal direction in the vertical direction. The right frame 32D has an exterior portion 33D and an interior portion 34D.

[0143] The exterior portion 33D is formed of a metal such as aluminum. The exterior portion 33D includes an exterior visible wall portion 33Da, a hollow portion 33Db, an interior visible wall portion 33Dc, and an exterior side material holding portion 33Dd.

[0144] The exterior-facing wall portion 33Da is located at the exterior and right-hand end of the exterior section. The exterior-facing wall portion 33Da faces the airtight seal 21Dda of the newly installed right frame 21D in the depth direction. When the shoji screen 31 is closed, the exterior side of the exterior-facing wall portion 33Da is in contact with the airtight seal 21Dda. This enhances the airtightness between the shoji screen 31 and the newly installed right frame 21D.

[0145] The hollow portion 33Db is adjacent to the right side of the exterior facing wall portion 33Da. The exterior and right end of the hollow portion 33Db is connected to the exterior facing wall portion 33Da. The hollow portion 33Db is a long cylindrical shape extending in the vertical direction, and more specifically, it is roughly rectangular in shape.

[0146] The interior-facing visible wall portion 33Cc extends to the right from the interior-facing and right-hand end of the hollow portion 33Db.

[0147] The outdoor side panel holding portion 33Dd extends to the right from the outdoor and right-side end of the hollow portion 33Db.

[0148] The indoor portion 34D is provided on the indoor side of the outdoor portion 33D. The indoor portion 34D is fixed to the outdoor portion 33D, more specifically, by the engagement of a protrusion provided on the indoor portion 34D with a recess provided on the outdoor portion 33D. The indoor portion 34D is formed of a different material from the outdoor portion 33D, for example, made of resin. The indoor portion 34D has a hollow portion 34Da, a hollow portion 34Db, a hollow portion 34Dc, and an indoor side material holding portion 34Dd.

[0149] The hollow portion 34Da is adjacent to the interior side of the interior facing wall portion 33Cc of the exterior portion 33D. The hollow portion 34Da is a long cylindrical shape extending in the vertical direction, and more specifically, it is roughly rectangular in shape.

[0150] The hollow portion 34Db is adjacent to the right side of the hollow portion 34Da. The hollow portion 34Db is adjacent to the indoor side of the indoor facing wall portion 33Cc of the outdoor portion 33D. The hollow portion 34Db has a long cylindrical shape extending in the vertical direction, and more specifically, it has a roughly rectangular cylindrical shape.

[0151] The hollow portion 34Dc is adjacent to the right side of the hollow portion 34Dc. The hollow portion 34Dc is adjacent to the indoor side of the hollow portion 33Db of the outdoor portion 33D. The hollow portion 34Dc has a long cylindrical shape extending in the vertical direction, and more specifically, it has a roughly rectangular cylindrical shape.

[0152] Furthermore, an arm 46D is provided in the hollow section 34Dc. The arm 46D is a component that connects the frame 2 and the sliding door 31 and holds the sliding door 31 in the open position. The arm 46D is connected to the hollow section 21Db of the newly installed left frame 21C. The arms 46C and 46D are collectively referred to as "arm 46".

[0153] The interior side panel retaining portion 34Dd extends to the right from the interior and right-hand end of the hollow portion 34Dc. The interior side panel retaining portion 34Dd faces the exterior side panel retaining portion 33Dd with a gap in the depth direction. The right edge of the panel 35 is inserted between the interior side panel retaining portion 34Dd and the exterior side panel retaining portion 33Dd.

[0154] The facing material 35 is provided on the inner circumference side of the shoji frame 32. The facing material 35 is a roughly rectangular flat plate. The surface of the facing material 35 extends in the vertical and horizontal directions. The facing material 35 is, for example, a glass panel, and more specifically, a double-glazed glass panel.

[0155] Furthermore, the door / window 1 is not provided with an arm that connects the sliding door 31 to the frame 2 and holds the sliding door 31 at a predetermined opening angle.

[0156] (Screen door) The screen door 37 is installed on the inner circumference side of the newly installed frame 21. The screen door 37 is installed, for example, on the exterior side of the shoji screen 31. The screen door 37 has a screen door frame 38 and a screen part 39.

[0157] The screen door frame 38 is provided along the inner circumferential surface of the newly installed frame 21. The screen door frame 38 is frame-shaped, and more specifically, rectangular. The screen door frame 38 has a hollow structure. The screen door frame 38 is made of a metal such as aluminum. The screen door frame 38 has a screen door bottom frame 38A, a screen door top frame 38B, a screen door left frame 38C, and a screen door right frame 38D.

[0158] The bottom frame 38A of the screen door constitutes the lower edge of the screen door frame body 38. The bottom frame 38A is elongated and extends in the left-right direction. The bottom frame 38A has a hollow structure with a rectangular cross-section.

[0159] The screen door upper frame 38B constitutes the upper edge of the screen door frame body 38. The screen door upper frame 38B is elongated and extends in the left-right direction. The screen door upper frame 38B has a hollow structure with a rectangular cross-section.

[0160] The left frame 38C of the screen door constitutes the left edge of the screen door frame body 38. The left frame 38C of the screen door is elongated and extends in the vertical direction. The left frame 38C of the screen door has a hollow structure with a rectangular cross-section.

[0161] The right frame 38D of the screen door constitutes the right edge of the screen door frame body 38. The right frame 38D of the screen door is elongated and extends in the vertical direction. The right frame 38D of the screen door has a hollow structure with a rectangular cross-section.

[0162] The mesh portion 39 is provided on the inner circumference side of the screen door 37. The mesh portion 39 has a roughly rectangular shape.

[0163] Furthermore, as shown in Figures 3 and 4, the screen door 37 can be directly attached to the frame 2 (specifically, the newly installed frame 21). The configuration in which the screen door 37 is directly attached to the frame 2 will be described below.

[0164] The lower edge of the screen door 37 (specifically, the screen door bottom frame 38A) is inserted into the groove of the screen door mounting portion 21Ad of the newly installed bottom frame 21A. The exterior side of the screen door 37 faces the interior side of the exterior screen door opposing portion 21Ada in the depth direction. The interior side of the screen door 37 faces the exterior side of the interior screen door opposing portion 21Add in the depth direction. The screen door 37 is placed on the bottom portion 50Ad.

[0165] The upper edge of the screen door 37 (specifically, the upper frame 38B of the screen door) is inserted into the groove of the screen door mounting portion 21Bc of the newly installed upper frame 21B. The exterior side of the screen door 37 faces the interior side of the exterior screen door opposing portion 21Bca in the depth direction. The interior side of the screen door 37 faces the exterior side of the interior screen door opposing portion 21Bcb in the depth direction. The lower end of the upper frame 38B of the screen door is located below the lower end of the interior screen door opposing portion 21Bcb.

[0166] The left edge of the screen door 37 (specifically, the left frame 38C of the screen door) is positioned on the exterior side of the interior screen door opposing section 21Cc of the newly installed left frame 21C. The interior side of the left frame 38C of the screen door faces the exterior side of the interior screen door opposing section 21Cc in the depth direction.

[0167] The right edge of the screen door 37 (specifically, the right frame 38D of the screen door) is positioned on the exterior side of the interior screen door opposing section 21Dc of the newly installed right frame 21D. The interior side of the right frame 38D of the screen door faces the exterior side of the interior screen door opposing section 21Dc in the depth direction.

[0168] The screen door 37 is positioned on the inner circumference of the frame 2 and is held in place by the screen door mounting portion 21Ad of the newly installed lower frame 21A, the screen door mounting portion 21Bc of the newly installed upper frame 21B, the indoor screen door opposing portion 21Cc of the newly installed left frame 21C, and the indoor screen door opposing portion 21Dc of the newly installed right frame 21D. The screen door mounting portion 21Ad, the screen door mounting portion 21Bc, the indoor screen door opposing portion 21Cc, and the indoor screen door opposing portion 21Dc correspond to the screen door holding portion. The screen door mounting portion 21Ad, the screen door mounting portion 21Bc, the indoor screen door opposing portion 21Cc, and the indoor screen door opposing portion 21Dc are sometimes collectively referred to as the "screen door holding portion 21Ad, 21Bc, 21Cc, 21Dc".

[0169] The exterior side of the indoor screen door opposing section 21Add of the newly installed lower frame 21A, the exterior side of the indoor screen door opposing section 21Bcb of the newly installed upper frame 21B, the exterior side of the indoor screen door opposing section 21Cc of the newly installed left frame 21C, and the exterior side of the indoor screen door opposing section 21Dc of the newly installed right frame 21D correspond to the first screen door opposing surface. The exterior side of the indoor screen door opposing section 21Add, the exterior side of the indoor screen door opposing section 21Bcb, the exterior side of the indoor screen door opposing section 21Cc, and the exterior side of the indoor screen door opposing section 21Dc are sometimes collectively referred to as the "first screen door opposing surface 21Add, 21Bcb, 21Cc, 21Dc".

[0170] Furthermore, a stopper 40 is provided on the right frame 38D of the screen door. The stopper 40 is detachably fixed to the left side of the right frame 38D of the screen door, specifically, it is detachably fixed by screws 40s. The portion of the upper surface of the stopper 40 that is closer to the interior extends above the portion of the upper surface of the stopper 40 that is closer to the exterior. The stopper 40 is roughly L-shaped when viewed in the left-right direction. The upper surface of the stopper 40 is in contact with the lower end of the upper frame 38B of the screen door and the lower end of the interior screen door opposing portion 21Bcb of the newly installed upper frame 21B. When the screen door 37 tries to move upward, the stopper 40 comes into contact with the lower end of the interior screen door opposing portion 21Bcb. This prevents the screen door 37 from moving upward. Although not shown in the diagram, a stopper 40 is also provided on the right side of the left frame 38C of the screen door.

[0171] (How to remove a screen door) Next, the procedure for removing the screen door 37 from the frame 2 will be explained with reference to Figures 5 to 7.

[0172] As shown in Figure 5, the locking mechanism 40 is released from the screen door frame 38 by loosening the screw 40s. Next, the locking mechanism 40 is moved downwards. This creates a gap between the locking mechanism 40 and the indoor screen door facing portion 21Bcb of the newly installed upper frame 21B, allowing the screen door 37 to be moved upwards.

[0173] Next, as shown in Figure 6, move the screen door 37 upwards. The lower end of the screen door 37 is detached from the screen door mounting portion 21Ad of the newly installed lower frame 21A.

[0174] Next, as shown in Figure 7, the lower end of the screen door 37 is moved toward the outside. Then, the screen door 37 is moved toward the outside and downward, and the upper end of the screen door 37 is detached from the screen door mounting portion 21Bc of the newly installed upper frame 21B. With these steps, the screen door 37 can be removed from the newly installed frame 21.

[0175] Furthermore, by performing the removal procedure described above in reverse order, the screen door 37 can be attached to the new frame 21. In other words, the screen door 37 is designed to be attached to the new frame 21 from the outside.

[0176] (Attachment for installing screen doors) Here, a screen door attachment 50 (sometimes simply referred to as "attachment 50") can be attached to the door 1. The attachment 50 will be described below with reference to Figures 8 to 10. In the description of the configuration of attachment 50, each direction refers to the direction when the attachment 50 is attached to the door 1.

[0177] Note that the configuration of screen door 37 differs slightly from the configuration described above. The differences in the configuration of screen door 37 will be explained as needed.

[0178] As shown in Figures 8 to 10, the attachment 50 is in contact with the frame 2. The attachment 50 is, for example, detachably attached to the frame 2. The attachment 50 is attached to the newly installed frame 21. The attachment 50 is in contact with the screen door 37. The screen door 37 is, for example, detachably attached to the attachment 50. The attachment 50 is formed, for example, in the shape of a rectangular frame. The attachment 50 is formed of a metal such as aluminum. However, it is not limited to this, and the attachment 50 may be formed of iron, or resin, for example. The attachment 50 comprises a lower attachment 50A, an upper attachment 50B, a left attachment 50C, and a right attachment 50D.

[0179] The lower attachment 50A constitutes the lower edge of the attachment 50. The lower attachment 50A is elongated with its longitudinal direction in the left-right direction. The lower attachment 50A is fixed to the screen door mounting portion 21Ad of the newly installed lower frame 21A, and more specifically, it is fixed detachably by screws 50As1. The lower attachment 50A has an outdoor-facing wall portion 50Aa, an interior wall portion 50Ab, an interior wall portion 50Ac, a bottom portion 50Ad, an outdoor-facing screen door portion 50Ae, an indoor-facing screen door portion 50Af, an indoor-facing wall portion 50Ag, and an interior wall portion 50Ah.

[0180] The exterior visible wall portion 50Aa extends along the visible direction.

[0181] The concealed wall portion 50Ab extends from the lower end of the exterior-facing wall portion 50Aa toward the interior. The concealed wall portion 50Ab extends along the depth direction.

[0182] The concealed wall portion 50Ac extends from the middle of the exterior facing wall portion 50Aa in the vertical direction toward the interior. The interior end of the concealed wall portion 50Ac is curved downwards.

[0183] The bottom portion 50Ad extends from the upper end of the exterior facing wall portion 50Aa toward the interior. The bottom portion 50Ad extends along the depth direction.

[0184] The exterior screen door opposing section 50Ae extends upward from the bottom section 50Ad (more specifically, the exterior end of the bottom section 50Ad). The exterior screen door opposing section 50Ae extends along the depth direction. The upper end of the exterior screen door opposing section 50Ae curves inward towards the interior.

[0185] The indoor screen door opposing section 50Af is provided at a distance from the outdoor screen door opposing section 50Ae on the indoor side. The indoor screen door opposing section 50Af extends upward from the bottom section 50Ad (more specifically, the indoor end of the bottom section 50Ad). The upper end of the indoor screen door opposing section 50Af is located lower than the upper end of the outdoor screen door opposing section 50Ae. The indoor screen door opposing section 50Af extends along the depth direction. The upper end of the indoor screen door opposing section 50Af is curved outwards.

[0186] The interior facing wall portion 50Ag is provided with a gap in the depth direction from the exterior facing wall portion 50Aa. The interior facing wall portion 50Ag extends downward from the middle of the bottom portion 50Ad in the left-right direction.

[0187] The recessed wall portion 50Ah extends inward from the lower end of the interior-facing wall portion 50Ag. The position of the interior-facing end of the recessed wall portion 50Ah in the depth direction is approximately the same as the position of the interior-facing end of the bottom portion 50Ad in the depth direction.

[0188] Next, we will describe the state in which the lower attachment 50A is attached to the newly installed lower frame 21A.

[0189] The exterior visible wall portion 50Aa is located on the exterior side of the exterior screen door opposing portion 21Ada of the newly installed lower frame 21A. The exterior visible wall portion 50Aa is in contact with or close to the exterior side of the exterior screen door opposing portion 21Ada of the newly installed lower frame 21A. The interior wall portion 50Ab is located below the bottom portion 50Ad of the newly installed lower frame 21A. The interior wall portion 50Ac and the bottom portion 50Ad are located above the exterior screen door opposing portion 21Ada of the newly installed lower frame 21A. The upper end of the exterior screen door opposing portion 50Ae is located below the upper end of the interior screen door opposing portion 21Add of the newly installed lower frame 21A. The bottom portion 50Ad, the interior screen door opposing portion 50Af, and the interior wall portion 50Ah are in contact with or close to the interior screen door opposing portion 21Add of the newly installed lower frame 21A.

[0190] The screw 50As1 penetrates the bottom portion 50Ad from top to bottom and is screwed into the bottom portion 50Ad of the newly installed lower frame 21A. In this way, the lower attachment 50A is fixed to the newly installed lower frame 21A, and more specifically, it is fixed in a detachable manner.

[0191] The upper attachment 50B constitutes the upper edge of the attachment 50. The upper attachment 50B is elongated with its longitudinal direction in the left-right direction. The upper attachment 50B is fixed to the screen door mounting portion 21Ad of the newly installed upper frame 21B, and more specifically, it is fixed detachably by screws 50Bs. The upper attachment 50B has an exterior facing wall portion 50Ba, an interior wall portion 50Bb, an exterior screen door opposing portion 50Bc, an interior facing wall portion 50Bd, an interior wall portion 50Be, an interior wall portion 50Bf, and a latch receiving portion 50Bg.

[0192] The exterior visible wall portion 50Ba extends along the visible direction.

[0193] The interior wall portion 50Bb extends inward from the upper end of the exterior facing wall portion 50Ba. The exterior end of the interior wall portion 50Bb is located slightly further outward than the exterior facing wall portion 50Ba. The interior wall portion 50Bb extends along the width direction.

[0194] The exterior screen door opposing portion 50Bc extends downward from the interior wall portion 50Bb. The exterior screen door opposing portion 50Bc is connected to the exterior end of the interior wall portion 50Bb. The interior wall portion 50Bb extends along the visible direction.

[0195] The interior-facing wall section 50Bd is provided at a distance from the exterior-facing wall section 50Ba on the interior side. The interior-facing wall section 50Bd extends upward from the interior wall section 50Bb. The interior-facing wall section 50Bd is connected to the interior end of the interior wall section 50Bb. The vertical position of the upper end of the interior-facing wall section 50Bd is approximately the same as the vertical position of the upper end of the exterior-facing wall section 50Ba.

[0196] The recessed wall section 50Be extends inward from the interior-facing wall section 50Bd. The recessed wall section 50Be is connected to the interior-facing wall section 50Bd near its vertical center. The recessed wall section 50Be extends along the depth direction.

[0197] The recessed wall section 50Bf extends inward from the interior-facing wall section 50Bd. The recessed wall section 50Bf is connected to the upper end of the interior-facing wall section 50Bd. The recessed wall section 50Bf extends along the depth direction. The interior end of the recessed wall section 50Be and the interior end of the recessed wall section 50Bf are aligned in the depth direction.

[0198] The latch receiving portion 50Bg is the part to which the latch portion 55 (described later) provided on the screen door 37 is hooked. The latch receiving portion 50Bg is provided at a distance from the interior side of the exterior screen door opposing portion 50Bc. The latch receiving portion 50Bg extends downward from the interior wall portion 50Bb. The latch receiving portion 50Bg is connected to the interior end of the interior wall portion 50Bb. The lower end of the latch receiving portion 50Bg is located above the lower end of the exterior screen door opposing portion 50Bc. The latch receiving portion 50Bg extends along the visible direction. The lower end of the latch receiving portion 50Bg is curved toward the exterior.

[0199] In other words, the screen door 37 has a latch portion 55, and the attachment 50 (specifically, the upper attachment 50B) is installed on the interior side of the interior side of the screen door opposing portion 21Bcb on the interior side of the newly installed upper frame 21B, and has a latch receiving portion 50Dg that hooks onto the latch portion 55.

[0200] Next, we will describe the state in which the upper attachment 50B is attached to the newly installed upper frame 21B.

[0201] The exterior visible wall portion 50Ba is located on the interior side of the exterior screen door opposing portion 21Bca of the newly installed upper frame 21B. The exterior visible wall portion 50Ba is in contact with or close to the interior side surface of the exterior screen door opposing portion 21Bca. The exterior visible wall portion 50Ba is in contact with or close to the bottom surface of the hollow portion 33Ba of the newly installed upper frame 21B. The exterior screen door opposing portion 50Bc is located slightly further outward than the exterior screen door opposing portion 21Bca of the newly installed upper frame 21B. The interior visible wall portion 50Bd and the interior wall portion 50Bf are in contact with or close to the bottom surface of the hollow portion 33Ba of the newly installed upper frame 21B, respectively. The interior wall portion 50Be and the interior wall portion 50Bf are in contact with or close to the exterior side surface of the interior screen door opposing portion 21Bcb of the newly installed upper frame 21B.

[0202] The screws 50Bs penetrate the recessed wall portion 50Bb from bottom to top and are screwed into the hollow portion 33Ba of the newly installed upper frame 21B. As a result, the upper attachment 50B is fixed to the newly installed upper frame 21B, and more specifically, it is fixed in a detachable manner.

[0203] The left attachment 50C constitutes the left edge of the attachment 50. The left attachment 50C is elongated with its longitudinal direction in the vertical direction. The left attachment 50C is fixed to the newly installed left frame 21C, and more specifically, it is detachably fixed by screws 50Cs1 and 50Cs2. The left attachment 50C has an exterior facing wall portion 50Ca, an interior wall portion 50Cb, an interior wall portion 50Cc, an interior facing wall portion 50Cd, and an exterior screen door opposing portion 50Ce.

[0204] The exterior visible wall portion 50Ca extends along the visible direction.

[0205] The concealed wall portion 50Cb extends from the left end of the exterior-facing wall portion 50Ca toward the interior. The concealed wall portion 50Cb extends along the depth direction.

[0206] The recessed wall section 50Cc extends from the right end of the exterior facing wall section 50Ca toward the interior. The position of the interior end of the recessed wall section 50Cc in the depth direction is approximately the same as the position of the interior end of the recessed wall section 50Cb in the depth direction.

[0207] The interior facing wall portion 50Cd extends to the left from the interior end of the interior wall portion 50Cc. The interior facing wall portion 50Cd extends along the facing direction. The interior side surface of the interior facing wall portion 50Cd is substantially flush with the interior end surface of the interior wall portion 50Cb.

[0208] The exterior screen door opposing section 50Ce extends to the right from the interior wall section 50Cc. The exterior screen door opposing section 50Ce is connected to the interior end of the interior wall section 50Cc. The exterior screen door opposing section 50Ce extends along the facing direction. The exterior side of the exterior screen door opposing section 50Ce is substantially flush with the exterior side of the exterior facing wall section 50Ca.

[0209] Next, we will describe the state in which the left attachment 50C is attached to the newly installed left frame 21C.

[0210] The recessed wall portion 50Cb is in contact with the right side of the outdoor extension portion 21Ca of the newly installed left frame 21C. The recessed wall portion 50Cb is in contact with or close to the indoor side of the hollow portion 24Cb of the newly installed left frame 21C. The indoor facing wall portion 50Cd is in contact with the outdoor side of the indoor screen door opposing portion 21Cc of the newly installed left frame 21C.

[0211] Screw 50Cs1 penetrates the exterior extension portion 21Ca and the interior wall portion 30Cb of the newly installed left frame 21C from left to right. Screw 50Cs2 penetrates the interior screen door opposing portion 21Cc and the interior visible wall portion 50Bd of the newly installed left frame 21C from the interior to the exterior. As a result, the left attachment 50C is fixed to the newly installed left frame 21C, and more specifically, it is fixed in a detachable manner.

[0212] Screws 50Cs1 and 50Cs2 are covered from the outside by the exterior-facing wall portion 50Ca of the left-side attachment 50C. This allows screws 50Cs1 and 50Cs2 to be concealed from the outside, thereby enhancing the aesthetic appearance.

[0213] The right-side attachment 50D constitutes the right edge of the attachment 50. The right-side attachment 50D is elongated with its longitudinal direction in the vertical direction. The right-side attachment 50D is fixed to the newly installed right frame 21D, and more specifically, it is detachably fixed by screws 50Ds1 and 50Ds2. The right-side attachment 50D has an exterior-facing wall portion 50Da, an interior wall portion 50Db, an interior wall portion 50Dc, an interior-facing wall portion 50Dd, and an exterior screen door opposing portion 50De.

[0214] The exterior visible wall portion 50Da extends along the visible direction.

[0215] The concealed wall section 50Db extends from the right end of the exterior-facing wall section 50Da toward the interior. The concealed wall section 50Db extends along the depth direction.

[0216] The recessed wall section 50Dc extends from the left end of the exterior-facing wall section 50Da toward the interior. The position of the interior end of the recessed wall section 50Dc in the depth direction is approximately the same as the position of the interior end of the recessed wall section 50Db in the depth direction.

[0217] The interior facing wall portion 50Dd extends to the right from the interior end of the recessed wall portion 50Dc. The interior facing wall portion 50Dd extends along the facing direction. The interior side surface of the interior facing wall portion 50Dd is flush with the interior end surface of the recessed wall portion 50Db.

[0218] The exterior screen door opposing section 50De extends to the left from the interior wall section 50Dc. The exterior screen door opposing section 50De is connected to the interior end of the interior wall section 50Dc. The exterior screen door opposing section 50De extends along the facing direction. The exterior side of the exterior screen door opposing section 50De is substantially flush with the exterior side of the exterior facing wall section 50Da.

[0219] Next, we will explain the state in which the right-side attachment 50D is attached to the newly installed right-side frame 21D.

[0220] The recessed wall portion 50Db is in contact with the left side of the outdoor extension portion 21Da of the newly installed right frame 21D. The recessed wall portion 50Db is in contact with or close to the indoor side of the hollow portion 21Db of the newly installed right frame 21D. The indoor facing wall portion 50Dd is in contact with the outdoor side of the indoor screen door opposing portion 21Cc of the newly installed right frame 21D.

[0221] Screw 50Ds1 penetrates the exterior extension portion 21Da and the interior wall portion 50Db of the newly installed right frame 21D from right to left. Screw 50Ds2 penetrates the interior screen door opposing portion 21Cc and the interior visible wall portion 50Dd of the newly installed right frame 21D from the interior to the exterior. As a result, the right attachment 50D is fixed to the newly installed right frame 21D, and more specifically, it is fixed in a detachable manner.

[0222] Screws 50Ds1 and Ds2 are covered from the outside by the exterior-facing wall portion 50a. This allows screws 50Ds1 and Ds2 to be concealed from the outside, thereby enhancing the aesthetic appearance.

[0223] As described above, the attachment 50 is fixed to the newly installed frame 21, and more specifically, it is fixed in a detachable manner.

[0224] (Screen door installation method) The screen door 37 is attached to the attachment 50, and more specifically, it is attached in a detachable manner. The following describes the state in which the screen door 37 is attached to the attachment 50.

[0225] The bottom frame 38A of the screen door rests on the bottom 50Ad of the lower attachment 50A. The indoor side of the outdoor screen door opposing portion 50Ae of the lower attachment 50A faces the outdoor side of the bottom frame 38A. The outdoor side of the indoor screen door opposing portion 50Af of the lower attachment 50A faces the indoor side of the bottom frame 38A. The indoor side of the outdoor screen door opposing portion 21Ada corresponds to the second screen door opposing surface. The upper end of the indoor side of the outdoor screen door opposing portion 21Ada is located below the upper end of the outdoor side of the indoor screen door opposing portion 21Cc of the newly installed left frame 21C.

[0226] The lower surface of the bottom frame 38A of the screen door is provided with a recess 38Aa that is concave upwards. The screw head of the screw 50As1 is located within the recess 38Aa. This suppresses interference between the screw 30As1 and the bottom frame 38A of the screen door. It also suppresses rattling of the bottom frame 38A in the depth direction.

[0227] The screen door upper frame 38B is attached to the upper attachment 50B. The indoor side of the outdoor screen door opposing portion 50Bc of the upper attachment 50B faces the outdoor side of the screen door upper frame 38B. The indoor side of the outdoor screen door opposing portion 50Bc corresponds to the second screen door opposing surface. Furthermore, the indoor side of the outdoor screen door opposing portion 50Bc extends further inward (more specifically, downward) of the frame 2 than the outdoor side of the indoor screen door opposing portion 21Bcb of the newly installed upper frame 21B.

[0228] A latch section 55 is provided on the upper frame 38B of the screen door. The latch section 55 has a latch bolt 55a that moves in the vertical direction and a latch operating section 55b that operates the latch bolt 55a.

[0229] The latch bolt 55a is housed in the upper frame 38B of the screen door. The latch bolt 55a is movable in the vertical direction. The latch bolt 55a is hooked onto the latch receiving portion 55Bg of the newly installed upper frame 21B.

[0230] The latch operating part 55b is located on the interior side of the upper frame 38B of the screen door. When the latch operating part 55b moves vertically, the latch bolt 55a moves vertically in accordance with the latch operating part 55b. By operating the latch operating part 55b, the latch bolt 55a can be hooked onto the latch receiving part 50Bg, or the engagement between the latch bolt 55a and the latch receiving part 50Bg can be released.

[0231] The left frame 38C of the screen door is positioned on the interior side of the exterior screen door opposing section 50Ce of the left attachment 50C. The interior side of the exterior screen door opposing section 50Ce faces the exterior side of the left frame 38C. The interior side of the exterior screen door opposing section 50Ce corresponds to the second screen door opposing surface. Furthermore, the interior side of the exterior screen door opposing section 50Ce extends further inward (more specifically, to the right) of the frame 2 than the exterior side of the interior screen door opposing section 21Cc of the newly installed left frame 21C.

[0232] The right frame 38D of the screen door is positioned on the interior side of the exterior screen door opposing section 50De of the right attachment 50D. The interior side of the exterior screen door opposing section 50De faces the exterior side of the right frame 38D. The interior side of the exterior screen door opposing section 50De corresponds to the second screen door opposing surface. Furthermore, the interior side of the exterior screen door opposing section 50De extends further inward (more specifically, to the left) of the frame 2 than the exterior side of the interior screen door opposing section 21Cc of the newly installed right frame 21D.

[0233] The interior side of the exterior screen door opposing part 50Ae of the lower attachment 50A, the interior side of the exterior screen door opposing part 50Bc of the upper attachment 50B, the interior side of the exterior screen door opposing part 50Ce of the left attachment 50C, and the interior side of the exterior screen door opposing part 50De of the right attachment 50D are sometimes collectively referred to as the "second screen door opposing surfaces 50Ae, 50Bc, 50Ce, 50De".

[0234] At least a portion of the second screen door opposing surfaces 50Ae, 50Bc, 50Ce, and 50De extends further towards the inner circumference of the frame 2 than the first screen door opposing surfaces 21Add, 21Bcb, 21Cc, and 21Dc.

[0235] Furthermore, the screen door 37 and the attachment 50 can also be considered as a screen door unit U comprising the screen door 37 and the attachment 50. In this screen door unit U, the screen door 37 and the attachment 50 are, for example, detachable from each other.

[0236] In the screen door unit U, the distance between the second screen door opposing surfaces 50Ae, 50Bc, 50Ce, 50De and the indoor end of the attachment 50 is greater than or equal to the depth dimension of the portion of the screen door 37 that overlaps with the second screen door opposing surfaces 50Ae, 50Bc, 50Ce, 50De in the depth direction.

[0237] For example, in the lower attachment 50A, the distance between the second screen door facing surface 50Ae and the indoor end of the lower attachment 50A (more specifically, the indoor side surface of the indoor screen door facing portion 50Af and the indoor end surface of the recessed wall portion 50Ah) is greater than or equal to the depth dimension of the portion of the screen door 37 that overlaps with the second screen door facing surface 50Ae in the depth direction.

[0238] In the upper attachment 50B, the distance between the second screen door facing surface 50Bc and the indoor end of the upper attachment 50B (specifically, the indoor end face of the recessed wall portion 50Be and the indoor end face of the recessed wall portion 50Bef) is greater than or equal to the depth dimension of the portion of the screen door 37 that overlaps with the second screen door facing surface 50Bc in the depth direction.

[0239] In the left attachment 50C, the distance between the second screen door facing surface 50Ce and the indoor end of the newly installed left frame 21C of the left attachment 50C (specifically, the indoor side of the indoor facing wall portion 50Cd) is greater than or equal to the depth dimension of the portion of the screen door 37 that overlaps with the second screen door facing surface 50Ce in the depth direction.

[0240] In the right-side attachment 50D, the distance between the second screen door facing surface 50De and the interior end of the right-side attachment 50D (specifically, the interior side of the interior facing wall portion 50Dd) is greater than or equal to the depth dimension of the portion of the screen door 37 that overlaps with the second screen door facing surface 50De in the depth direction.

[0241] As a result, by attaching the attachment 50 to the frame 2 such that the indoor end of the attachment 50 abuts against or is close to the first screen door opposing surfaces 21Add, 21Bcb, 21Cc, 21Dc, the distance between the screen door 37 and the shoji screen 31 in the depth direction can be appropriately maintained even after the attachment 50 has been attached to the frame 2. The entire screen door 37 is located on the outdoor side of the first screen door opposing surfaces 21Add, 21Bcb, 21Cc, 21Dc.

[0242] (How to remove a screen door) Next, the procedure for removing the screen door 37 from the attachment 50 will be explained with reference to Figures 11 to 13.

[0243] As shown in Figure 11, the latch operating part 55b is operated to move the latch bolt 55a downwards. This releases the engagement between the latch bolt 55a and the latch receiving part 50Bg.

[0244] Next, as shown in Figure 12, the top of the screen door 37 is moved toward the interior side, and the screen door 37 is detached from the upper attachment 50B.

[0245] When the screen door 37 is tilted inward, the lower end of the screen door 37 detaches from the lower attachment 50A, as shown in Figure 13. Thus, the screen door 37 can be removed from the attachment 50.

[0246] The screen door 37 can be attached to the attachment 50 by performing the above-described removal procedure in reverse order. In other words, the screen door 37 is designed to be attached to the attachment 50 from the outside. The screen door 37 is designed to be attached to the new frame 21 from the outside via the attachment 50.

[0247] (Effects of the first embodiment) The screen door mounting attachment 50 of this embodiment provides the following effects.

[0248] The joinery 1 comprises a frame 2, a sliding door 31, a screen door 37, and an attachment 50. The frame 2 has screen door holding parts 21Ad, 21Bc, 21Cc, and 21Dc. The screen door holding parts 21Ad, 21Bc, 21Cc, and 21Dc have first screen door opposing surfaces 21Add, 21Bcb, 21Cc, and 21Dc, which are surfaces facing the interior side of the screen door 37. The attachment 50 is in contact with the frame 2 and the screen door 37. The attachment 50 has second screen door opposing surfaces 50Ae, 50Bc, 50Ce, and 50De, which are surfaces facing the exterior side of the screen door 37. The second screen door opposing surfaces 50Ae, 50Bc, 50Ce, and 50De extend further inward towards the inner circumference of the frame 2 than the first screen door opposing surfaces 21Add, 21Bcb, 21Cc, and 21Dc.

[0249] With this configuration, the screen door 37 can be attached to the frame 2 via the attachment 50. By attaching the attachment 50 to the frame 2, the direction in which the screen door 37 is attached to the frame can be easily changed from the outside to the inside.

[0250] Therefore, it is possible to provide an attachment 50 and a door / window 1 that allow the installation direction of the screen door 37 to be easily changed.

[0251] Furthermore, if the installation direction of a screen door is to be changed by replacing the entire frame, the manufacturer must prepare a replacement frame. However, since frames have complex shapes, their development requires significant investment. With the attachment 50 of this embodiment, the installation direction of the screen door can be changed without the need for a replacement frame, thus reducing costs. In addition, since the attachment 50 is relatively small, it is considered that it can be obtained at a lower cost compared to the frame. Therefore, the financial burden on the user can be reduced.

[0252] The screen door 37 can be detachably attached to the attachment 50.

[0253] With this configuration, the screen door 37 can be removed from the attachment 50 and the frame 2, making it easy to replace or maintain the screen door 37. In addition, the mounting direction of the screen door 37 can be repeatedly changed.

[0254] The screen door 37 has a latch portion 55. The attachment 50 (specifically, the upper attachment 50B) is provided on the exterior side of the exterior screen door opposing portion 50Ae, and includes a latch receiving portion 55Bg into which the latch portion 55 (specifically, the latch bolt 55a) catches.

[0255] With this configuration, the screen door 37 can be fixed to the attachment by hooking the latch portion 55 onto the latch receiving portion 55Bg. By releasing the engagement between the latch portion 55 and the latch receiving portion 55Bg, the screen door 37 can be attached to and detached from the attachment 50. This makes it easy to attach and detach the screen door to and from the attachment.

[0256] The screen door 37 is installed on the exterior side of the shoji screen 31.

[0257] In this case, it is considered difficult to install the screen door 37 from the interior side of the door 1. However, by attaching the attachment 50 to the frame 2, the door 1 can be modified to allow the screen door 37 to be installed from the interior side. This improves the workability when installing the screen door 37. Furthermore, if the door 1 is located on an upper floor of the second floor or higher, it is particularly difficult to install the screen door from the exterior side, so the effects of the attachment 50 and the door 1 are best utilized.

[0258] <Modified form of the first embodiment> Next, various modifications of the first embodiment of this disclosure will be described. The differences from the first embodiment will be the main focus of the description. Components similar to those in the first embodiment may be denoted by the same reference numerals as in the first embodiment and their description may be omitted.

[0259] In each modified example, the configuration of the attachment differs from that of the attachment 50 in the first embodiment described above. In the description of each modified example, the configuration of the right attachment 50D is omitted because it is generally symmetrical to the configuration of the left attachment 50C. However, the configuration of the right attachment 50D is not limited to the configuration corresponding to that of the left attachment 50C and can be changed as appropriate.

[0260] (First variation) First, the attachment 50 of the first embodiment, which is a first modified example, will be described with reference to Figure 14.

[0261] As shown in Figure 14, in this modified example, the method of attaching the lower attachment 50A differs from that of the first embodiment. In this modified example, the screw 50As1 penetrates the indoor-facing wall portion 50Ag of the lower attachment 50A and the outdoor-facing screen door portion 21Ada of the newly installed lower frame 21A from the outdoor side to the indoor side.

[0262] In this case, it is possible to avoid a protrusion on the bottom 50Ad caused by the screw 50As1. This allows the screen door 37 to be placed stably on the bottom 50Ad, for example, even if the bottom surface of the screen door 37 is flat.

[0263] Furthermore, the screw 50As1 is covered from the outside by the exterior-facing wall portion 50Aa. This conceals the screw 50As1, thereby enhancing the aesthetic appeal.

[0264] (Second variation) Next, the attachment 150, a second modified example of the first embodiment, will be described with reference to Figure 15.

[0265] As shown in Figure 15, in this modified example, the configuration of the left attachment differs from that of the first embodiment. The left attachment 150C of this modified example has an indoor facing wall portion 150Ca that extends to the right from the indoor end of the facing wall portion 50Cb. The indoor facing wall portion 150Ca extends along the facing direction. The position of the indoor side surface of the indoor facing wall portion 150Ca in the facing direction is substantially the same as the position of the indoor side surface of the indoor facing wall portion 50Cd in the facing direction.

[0266] The interior side of the interior facing wall portion 150a is in contact with the exterior side of the hollow portion 21Cb of the newly installed left frame 21C.

[0267] In this modified example, the screw 50Cs1 penetrates the indoor-facing wall portion 150a and the hollow portion 21Cb from the outdoor side to the indoor side.

[0268] Thus, the left-side attachment does not necessarily have to be screwed in from multiple directions.

[0269] (Third variation) Next, the attachment 250, a third modified example of the first embodiment, will be described with reference to Figure 16.

[0270] As shown in Figure 16, in this modified example, the configuration of the left attachment differs from that of the first embodiment. The left attachment 250C of this modified example has, among the components of the left attachment 250C of the first embodiment, an inward wall portion 50Cc, an inward-facing wall portion 50Cd, and an outward-facing screen door portion 50Ce.

[0271] The left-side attachment 250C is screwed to the newly installed left frame 21C only by screws 50Cs2 that penetrate the interior-facing wall portion 50Cd.

[0272] This configuration simplifies the design of the left-side attachment 250C, thereby reducing the manufacturing and purchase costs of the attachment 250.

[0273] In this modification example, the screw 50Cs2 is not covered by the outdoor-side finding wall portion 50Ca. According to such a configuration, the screw 50Cs2 can be easily handled, so that the workability when attaching and detaching the attachment 50 can be improved.

[0274] (Fourth Modification Example) Next, the attachment 350 of the fourth modification example of the first embodiment will be described while referring to FIG. 17.

[0275] As shown in FIG. 17, in this modification example, the configuration of the left attachment is different from that of the first embodiment. The left attachment 350C of this modification example has a configuration in which the indoor-side finding wall portion 50Cd in the left attachment 250C of the third modification example is replaced with the indoor-side finding wall portion 350Cd.

[0276] The indoor-side finding wall portion 350Cd extends from the outdoor-side end portion of the expected wall portion 50Cc toward the left. The indoor-side finding wall portion 350Cd extends along the finding direction. The left-right dimension of the indoor-side finding wall portion 350Cd is larger than the left-right dimension of the indoor-side finding wall portion 50Cd. The left end portion of the indoor-side finding wall portion 350Cd is in contact with or close to the outdoor-side extension portion 21Ca of the newly installed left frame 21C.

[0277] In this modification example, the left attachment 350C is fixed to the newly installed left frame 21C by the screw 50Cs1 and the screw 50Cs2. The screw 50Cs1 penetrates the indoor-side finding wall portion 350Cd and the hollow portion 21Cb of the newly installed left frame 21C from the outdoor side toward the indoor side. The screw 50Cs2 penetrates the indoor-side finding wall portion 350Cd and the indoor-side screen-door facing portion 21Cc of the newly installed left frame 21C from the outdoor side toward the indoor side.

[0278] According to this modification example, while simplifying the configuration of the left attachment 350C and reducing the work burden when attaching the left attachment 350C, the left attachment 350C can be fixed more firmly to the newly installed left frame 21C.

[0279] While embodiments of the building components described herein have been explained above, the invention is not limited to the embodiments described above, and any modifications, improvements, etc., within the scope that can achieve the purpose of this disclosure are included. Various modifications and changes that do not depart from the gist of this disclosure are included herein.

[0280] In each of the embodiments described above, the door 1 was a remodeled door, but it is not limited to this. The door is not limited to those installed through renovation; it may also be newly installed.

[0281] In each of the embodiments described above, the joinery 1 was an inward-opening window, but it is not limited to this. The joinery may be, for example, an inward-opening window.

[0282] According to the embodiments described above, the door 1 was installed on an upper floor of the second floor or higher, but it is not limited to this. However, when the door is installed on an upper floor, it is difficult to attach or detach the screen door from the outside, so the effect of being able to change a door that is designed to attach or detach the screen door from the outside to a door that is designed to attach or detach the screen door from the inside is more preferably demonstrated when the door is installed on an upper floor.

[0283] In each of the embodiments described above, the screen door 37 was installed on the exterior side of the shoji screen 31, but this is not limited to this. The screen door may also be installed on the interior side of the shoji screen. In that case as well, the direction in which the screen door is attached to the fixture can be changed from the exterior side to the interior side by means of an attachment.

[0284] According to the embodiments described above, the upper end of the indoor side of the outdoor screen door opposing portion 50Ae of the lower attachment 50A is located below the upper end of the outdoor side of the indoor screen door opposing portion 21Add of the newly installed lower frame 21A, but the invention is not limited to this. The lower attachment 50A may be configured such that the indoor side of the outdoor screen door opposing portion 50Ae extends further towards the center (more specifically, the upper side) of the frame 2 in the vertical and horizontal directions than the outdoor side of the indoor screen door opposing portion 21Add of the newly installed lower frame 21A.

[0285] In the above embodiment, the screen door 37 was detachably attached to the attachment 50, but the invention is not limited to this. For example, the attachment and the screen door may be attached non-detachably, or the attachment may be detachably attached to the frame. With such a configuration, the screen door can be removed from the frame by removing the screen door and attachment together from the frame.

[0286] In the above embodiment, the latch portion 55 was configured such that when the latch operating portion 55b was pulled down by the user, the latch bolt 55a moved into the screen door 37, releasing the engagement between the latch bolt 55a and the latch receiving portion 55Bg. However, the invention is not limited to this configuration. The latch portion may also be configured such that, for example, when an opening force of a certain magnitude or greater is applied to the screen door 37, the latch bolt is pushed into the screen door 37, releasing the engagement between the latch bolt and the latch receiving portion. [Explanation of Symbols]

[0287] 1: Joinery, 2: Frame, 31: Shoji screen, 37: Insect screen, 21Ad, 21Bc, 21Cc, 21Dc: Insect screen holder, 21Add, 21Bcb, 21Cc, 21Dc: First insect screen facing surface, 50, 150, 250, 350: Insect screen mounting attachment, 50Ae, 50Bc, 50Ce, 50De: Second insect screen facing surface, 50Bg: Latch receiver, 55: Latch part, 100: Building, 101: Opening.

Claims

1. An attachment for mounting a screen door, comprising a frame, a sliding door, and a screen door, wherein the frame has a screen door holding portion, and the screen door holding portion has a first screen door facing surface that faces the interior side surface of the screen door, The frame and the screen door abut against each other, The screen door is provided with a second screen door facing surface that is opposite to the exterior surface of the aforementioned screen door, The second screen door opposing surface is a screen door mounting attachment that extends further inward than the first screen door opposing surface towards the inner circumference of the frame.

2. The screen door mounting attachment according to claim 1, wherein the screen door is detachably attached to the screen door mounting attachment.

3. The aforementioned screen door is used in the aforementioned building fixture having a latch portion. The screen door mounting attachment according to claim 2, further comprising a latch receiving portion provided on the interior side of the second screen door opposing surface, into which the latch portion catches.

4. Frame and, Shoji screens and, Screen door and, A screen door mounting attachment according to any one of claims 1 to 3, Equipped with, The frame has a screen door holding part, The screen door holding portion is a joinery having a first screen door facing surface that faces the interior side surface of the screen door.

5. The window screen is installed on the exterior side of the shoji screen, as described in claim 4.

Images