Fixture

Abstract

To provide a fixture that allows easy installation and replacement of airtight materials on steel frame materials.SOLUTION: A fixture has a steel frame material and an airtight material for airtightness in interior and exterior directions, and the airtight material is attached to the frame material via an airtight material mounting base that is separate from the frame material.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to building materials. [Background technology]

[0002] It is known in the art to hermetically seal the gap between a frame and a door body by bringing an airtight material attached to an aluminum frame body into contact with the door body in a closed position (see, for example, Patent Document 1).

[0003] The airtight material is attached to a groove-shaped airtight material fitting portion formed in the frame body. The airtight material fitting portion is formed integrally with the aluminum frame body by extrusion molding. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-193802 A Summary of the Invention [Problem to be solved by the invention]

[0005] For fittings that require strength, such as entrance doors, some frame materials that make up the frame and frame are made of steel. It is difficult to extrude the groove-shaped airtight material fitting part integrally with steel frame materials. Therefore, when attaching airtight material to steel frame materials, a method is adopted in which the airtight material is directly bonded to the frame material with an adhesive.

[0006] However, when the airtight material is adhered to the frame material, it is difficult to replace the airtight material when the airtight material is damaged, etc. When the airtight material is adhered to the frame material, there is also a risk that the airtight material may be damaged during transportation of the frame material, etc.

[0007] The present disclosure aims to provide building materials that allow airtight materials to be easily attached and replaced to steel frame materials. [Means for solving the problem]

[0008] The present disclosure relates to a fitting having a steel frame material and an airtight material that provides airtightness in the indoor and outdoor directions, wherein the airtight material is attached to the frame material via an airtight material mounting base that is separate from the frame material. [Brief description of the drawings]

[0009] [Figure 1] This is a front view of the fixture from the outside. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 3 is an enlarged view of the upper side of the fitting shown in FIG. 2. [Diagram 5] An oblique view showing the airtight material mounting base of the upper frame. [Figure 6] FIG. 3 is an enlarged view of the lower side of the fitting shown in FIG. 2. [Figure 7] 4 is an enlarged view of the hinge side of one of the door bodies of the fixture shown in FIG. 3. [Figure 8] 4 is an enlarged view of the hinge side of the other door body of the fixture shown in FIG. 3. [Figure 9] An oblique view showing the airtight material mounting base of the vertical frame. [Figure 10] This is an oblique view of the joint between the upper frame and the vertical frame from the inside of the room. [Figure 11] FIG. 4 is an enlarged view of the door end side of the door body of the fixture shown in FIG. 3. [Figure 12] 13 is an enlarged view showing an embodiment in which the airtight material fitting portion is mechanically fixed by caulking. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. Fig. 1 shows a hinged door 1 as a fixture. The hinged door 1 is, for example, a front door. The hinged door 1 is configured by fitting two door bodies 3 and 4 inside a frame body 2 provided at an opening of a building so that they can be opened and closed.

[0011] The door bodies 3 and 4 are large enough to close half of the left and right width directions of the inner space of the frame body 2. In the door bodies 3 and 4, the left and right vertical frame 23 sides are the "hanging side", and the side opposite the hanging side is the "door end side". Furthermore, in the frame body 2 and the door bodies 3 and 4, the direction connecting the outside side X1 and the inside side X2 (thickness direction of the door bodies 3 and 4) is the "front direction", and the surface arranged along the front direction is the "front surface". The side surface of the frame body 2 and the door bodies 3 and 4 facing the outside side X1 and the inside side X2 is the "visible surface". The "up and down" direction of the hinged door 1 is the up and down direction along the vertical direction. The "width direction" of the hinged door 1 is the left and right direction when the hinged door 1 is viewed from the front. In the hinged door 1, the direction toward the outside of the frame body 2 is the "outside", and the surface facing outward is the "outer surface". In the hinged door 1, the direction toward the inside of the frame 2 is referred to as the "inner side", and the surface facing inward is referred to as the "inner surface".

[0012] First, the frame 2 will be described.

[0013] The frame body 2 is formed by framing an upper frame 21, a lower frame 22, and left and right vertical frames 23 in a rectangular shape that conforms to the shape of the opening.

[0014] As shown in FIGS. 2 and 4, the upper frame 21 has an upper frame main body 211 which is a steel frame material, and a door stop portion 212.

[0015] The upper frame body 211 is made of a steel shaped member extending in the longitudinal direction of the upper frame 21, and is formed into a rectangular cross section having a hollow portion 211a. Steel plate materials 211f, 211g, 211h are attached by welding or the like to a facing surface 211c on the exterior side X1, a facing surface 211d on the interior side X2, and a bottom surface 211e of the upper frame body 211. The steel plates 211f, 211g, 211h are provided along the longitudinal direction of the upper frame 21. The steel plates 211f, 211g, 211h are thicker than the plate thickness of the upper frame body 211. This reinforces the upper frame 21.

[0016] An L-shaped metal fitting 210 for attaching the upper frame 21 to the building frame (not shown) is fixed to the upper surface 211b of the upper frame body 211 with a plurality of screws 21a. The L-shaped metal fitting 210 has an exterior wall portion 210a extending upward from the end of the exterior side X1. The exterior wall portion 210a and the steel plate 211f of the exterior side X1 are disposed flush toward the exterior side X1. A waterproof tape 213 is attached from the exterior side X1 to cover the gap between the exterior wall portion 210a and the steel plate 211f.

[0017] The door stop portion 212 is disposed on the indoor side X2 of the upper frame body 211, and extends over the entire length of the upper frame 21 in the longitudinal direction. The door stop portion 212 has an airtight material mounting base 2121 formed by an extruded material made of a metal such as aluminum or a resin, a cover material 2122 made of a metal material such as steel that covers the airtight material mounting base 2121 from the indoor side X2, and an upper frame side airtight material 216.

[0018] 4 and 5, the airtight material mounting base 2121 has a hollow portion 2121a with a rectangular cross section and has a thickness in the front direction. The airtight material mounting base 2121 has an extension portion 2121c that extends downward along a facing surface 2121b on the indoor side X2 of the hollow portion 2121a. The extension portion 2121c is disposed to protrude downward from the steel plate 211h.

[0019] An upper frame side airtight material 216 is fixed to the extension portion 2121c over the entire length of the upper frame 21 in the longitudinal direction. As shown in FIG. 4, the upper frame side airtight material 216 is made of an elastic member made of rubber or resin having a hollow portion 216a. A plurality of groove-shaped airtight material fitting portions 2121d extending parallel to the longitudinal direction of the extension portion 2121c are formed on the surface of the extension portion 2121c facing the outdoor side X1. The upper frame side airtight material 216 fits into the airtight material fitting portions 2121d while sliding along the longitudinal direction of the airtight material mounting base 2121. As a result, the upper frame side airtight material 216 is attached to the airtight material mounting base 2121 so as to protrude toward the outdoor side X1.

[0020] Above the hollow portion 2121a, there are formed a vertical wall portion 2121f that forms a sighting surface extending upwardly from the sighting surface 2121b across the tapping hole 2121e, and a recessed wall portion 2121g that extends from the upper end of the vertical wall portion 2121f toward the outside X1. As a result, a groove portion 2121h that opens toward the outside X1 is formed in the upper portion of the airtight material mounting base 2121.

[0021] The airtight material mounting base 2121 is mechanically fixed to the steel plate 211g on the indoor side X2 by the screw 21b from the indoor side X2. As a result, the airtight material mounting base 2121 is disposed on the indoor side X2 of the upper frame body 211, which is a steel frame material, of the upper frame 21.

[0022] As shown in Fig. 2 and Fig. 4, when the door bodies 3, 4 are in the closed position, the upper frame side airtight material 216 abuts against the upper parts of the door bodies 3, 4 from the room side X2 to airtightly seal the gap between the door bodies 3, 4. As a result, as shown in Fig. 4, an upper airtight line AL1 is formed between the upper frame 21 and the upper parts of the door bodies 3, 4. The upper airtight line AL1 is formed along the upper frame side airtight material 216 over the entire length of the upper frame 21 between the upper frame 21 and the upper parts of the door bodies 3, 4. Fig. 4 shows the upper airtight line AL1 formed between the upper frame 21 and the door body 3, but the upper airtight line AL1 is also formed between the upper frame 21 and the door body 4 in the same manner.

[0023] The airtight material mounting base 2121 of the upper frame 21 is disposed on the indoor side X2 of the upper airtight line AL1. As shown in Fig. 4, the airtight material mounting base 2121 extends downward from the line L11 on the lower surface of the steel plate 211h arranged at the lowermost part of the upper frame body 211, and also extends downward from the line L12 on the upper end surfaces of the door bodies 3 and 4. The airtight material mounting base 2121 covers the gap G1 between the lines L11 and L12 from the indoor side X2.

[0024] The upper frame side airtight material 216 is attached to the steel upper frame 21 via the airtight material mounting base 2121 separate from the upper frame 21 at the airtight material fitting portion 2121d, and is therefore easy to attach and replace. The upper frame side airtight material 216 can be attached to the upper frame 21 at the construction site, and therefore there is no risk of the upper frame side airtight material 216 being damaged during transportation of the frame body 2, etc. The airtight material mounting base 2121 is mechanically fixed to the upper frame 21 by screws 21b, and is therefore firmly joined to the upper frame 21. The upper frame side airtight material 216 may be partially adhered or riveted to the airtight material fitting portion 2121d, for example, at both ends.

[0025] As shown in FIG. 4, the cover material 2122 is attached to the airtight material mounting base 2121 and covers the entire airtight material mounting base 2121 from the indoor side X2. The upper and lower ends of the cover material 2122 are provided with outward extensions 2122a and 2122b extending to the outdoor side X1. The outward extensions 2122a and 2122b are arranged to sandwich the entire airtight material mounting base 2121 from above and below. The outward extension 2122b arranged on the lower end side of the cover material 2122 covers the upper frame side airtight material 216 from below so that the upper frame side airtight material 216 is difficult to see from a person passing through the hinged door 1. The outward extension 2122a arranged on the upper end side of the cover material 2122 does not contact the steel plate 211g as shown in FIG. 4.

[0026] As shown in Figures 2 and 5, the lower frame 22 has a lower frame main body 221 and a door stop portion 222.

[0027] The lower frame body 221 is made of a steel profile extending in the longitudinal direction of the lower frame 22, and is formed into a rectangular cross section having a hollow portion 221a. An L-shaped bracket 220 for attaching the lower frame 22 to the framework of a building (not shown) is fixed to the lower surface 221b of the lower frame body 221 with a plurality of screws 22a.

[0028] The L-shaped metal fitting 220 has an exterior wall portion 220a extending downward from an end portion on the exterior side X1. A facing surface 221c on the exterior side X1 of the lower frame body 221 is disposed closer to the exterior side X1 than the exterior wall portion 220a of the L-shaped metal fitting 220. A waterproof tape 223 is attached from the exterior side X1 to cover the gap between the exterior wall portion 220a of the L-shaped metal fitting 220 and the lower surface 221b of the lower frame body 221.

[0029] The door stop portion 222 is disposed on the indoor side X2 of the lower frame body 221, and extends over the entire length of the lower frame 22. The door stop portion 222 has an airtight material mounting base 2221 formed by an extruded material made of a metal such as aluminum or a resin, a cover material 2222 made of a metal material such as steel that covers the airtight material mounting base 2221 from the indoor side X2, and a lower frame side airtight material 224.

[0030] The airtight material mounting base 2221 extends in a plate shape over the entire length of the lower frame 22 in the longitudinal direction. The lower frame side airtight material 224 is fixed to the airtight material mounting base 2221 over the entire length of the lower frame 22 in the longitudinal direction. As shown in FIG. 5, the lower frame side airtight material 224 is made of a rubber or resin elastic member having a hollow portion 224a. A plurality of groove-shaped airtight material fitting portions 2221a extending in parallel along the longitudinal direction of the airtight material mounting base 2221 are formed on the surface of the airtight material mounting base 2221 facing the outdoor side X1. The lower frame side airtight material 224 fits into the airtight material fitting portions 2221a while sliding along the longitudinal direction of the airtight material mounting base 2221. As a result, the lower frame side airtight material 224 is attached to the airtight material mounting base 2221 so as to protrude toward the outdoor side X1. As shown in Figures 2 and 5, when the door bodies 3, 4 are in the closed position, the lower frame side airtight material 224 abuts against the lower parts of the door bodies 3, 4 from the indoor side X2, sealing the gap between the door bodies 3, 4 in an airtight manner.

[0031] The lower frame side airtight material 224 is attached to the steel lower frame 22 via the airtight material mounting base 2221 that is separate from the lower frame 22, and is therefore easy to attach and replace. Since the lower frame side airtight material 224 can be attached to the lower frame 22 at the construction site, there is no risk of the lower frame side airtight material 224 being damaged during transportation of the frame body 2, etc. The lower frame side airtight material 224 may be partially adhered or riveted to the airtight material fitting portion 2221a, for example, at both ends.

[0032] 6, the cover material 2222 has a cover material main body 2222a, an outdoor side wall portion 2222b, an indoor side wall portion 2222c, and an outward extension portion 2222d. The cover material 2222 is fixed to the lower frame main body 221 by welding or the like, and constitutes the lower frame 22 together with the lower frame main body 221.

[0033] The cover material main body 2222a extends in the front direction along the upper surface 221e of the lower frame main body 221. The cover material main body 2222a extends toward the indoor side X2 beyond the visible surface 221d on the indoor side X2 of the lower frame main body 221. The cover material main body 2222a is supported from below on the indoor side X2 beyond the lower frame main body 221 by an L-shaped angle material 225 attached to the visible surface 221d on the indoor side X2 of the lower frame main body 221.

[0034] The outdoor side wall portion 2222b is disposed at the end of the outdoor side X1 of the cover material main body 2222a. The outdoor side wall portion 2222b extends downward along the sight surface 221c of the outdoor side X1 of the lower frame main body 221, and covers the entire sight surface 221c from the outdoor side X1.

[0035] The indoor side wall portion 2222c is disposed at the end of the indoor side X2 of the cover material main body 2222a and rises upward. The airtight material mounting base 2221 having the lower frame side airtight material 224 is adhered to the side surface of the indoor side wall portion 2222c on the outdoor side X1 with adhesive, double-sided tape, or the like. The airtight material mounting base 2221 is attached to the lower frame 22 by adhesion, and therefore can be easily attached to the lower frame 22.

[0036] The outward extension 2222d extends from the upper end of the indoor wall 2222c toward the outdoor side X1. The outward extension 2222d covers the sill-frame-side airtight material 224 from above so that the sill-frame-side airtight material 224 is difficult to see from people passing through the hinged door 1.

[0037] 2, the upper surface 221e of the lower frame body 221 is disposed at approximately the same height as the floor surface FL1 of the outside side X1. The outward extension portion 2222d of the cover material 2222 is disposed at approximately the same height as the floor surface FL2 of the inside side X2.

[0038] The left and right vertical frames 23 have the same configuration and are configured symmetrically as shown in Figures 3, 7, and 8. The vertical frames 23 have a vertical frame main body 231 which is a steel frame material, and a door stop portion 232.

[0039] The vertical frame body 231 is made of a steel shaped member extending in the longitudinal direction of the vertical frame 23, and is formed into a rectangular cross section having a hollow portion 231a. An L-shaped metal fitting 230 for attaching the vertical frame 23 to the framework of a building (not shown) is fixed to the outer surface 231b of the vertical frame body 231 by a plurality of screws 23a.

[0040] On the visible surface 231c and the inner surface 231d of the vertical frame body 231 on the outdoor side X1, steel plates 233a, 233b, 233c and a steel plate 234 are provided along the length of the vertical frame body 231. The vertical frame body 231, the steel plates 233a, 233b, 233c and the steel plate 234 are attached together by welding or the like. The steel plates 233a, 233b, 233c are thicker than the vertical frame body 241 and the steel plate 234. This reinforces the vertical frame 23.

[0041] The steel plate 234 is formed into a crank-shaped cross section and is disposed so as to face the respective hanging sides of the door bodies 3, 4 housed within the frame body 2. As shown in Figs. 7 and 8, the steel plate 234 is composed of a first steel plate portion 234a and a second steel plate portion 234b.

[0042] The first steel plate portion 234a is attached so as to cover the steel plate 233a, which is affixed to the visible surface 231c of the outside side X1 of the vertical frame body 231, from the outside side X1, and forms the visible surface of the outside side X1 of the vertical frame 23.

[0043] The second steel plate portion 234b is formed with an L-shaped cross section having a recessed portion 234b1 and an interior side visible portion 234b2. The recessed portion 234b1 is attached to cover the steel plate 233b attached to the inner surface 231d of the vertical frame body 231 from the inside, forming the visible surface of the vertical frame 23. The steel plate 233b and the recessed portion 234b1 protrude toward the interior side X2 from the vertical frame body 231. The interior side visible portion 234b2 extends inward from the end of the recessed portion 234b1 on the interior side X2 toward the hanging side of the door body 3, 4. The steel plate 233c is attached to the interior side visible portion 234b2 from the interior side X2. An inner end 234a1 of the first steel plate portion 234a is folded back twice, and protrudes inward toward the hanging end side of the door bodies 3, 4 beyond a projection portion 234b1 of the second steel plate portion 234b.

[0044] 3, the L-shaped metal fitting 230 has an exterior wall portion 230a extending outward from an end portion on the exterior side X1. The exterior wall portion 230a is arranged to be aligned outward from the first steel plate portion 234a. A waterproof tape 235 is attached from the exterior side X1 across the exterior wall portion 230a of the L-shaped metal fitting 230 and the first steel plate portion 234a so as to seal the gap between them.

[0045] The door stop portion 232 is disposed on the indoor side X2 of the vertical frame main body 231, and extends over the entire length of the vertical frame 23 in the longitudinal direction. The door stop portion 232 has an airtight material mounting base 2321 formed by an extruded material made of a metal such as aluminum or a resin, a cover material 2322 made of a metal material such as steel that covers the airtight material mounting base 2321 from the indoor side X2, and a vertical frame side airtight material 236.

[0046] As shown in Figures 7, 8 and 9, the airtight material mounting base 2321 has a hollow portion 2321a with a rectangular cross section and has a thickness in the front direction. The airtight material mounting base 2321 has an extension portion 2321c that extends inward along a facing surface 2321b on the indoor side X2 of the hollow portion 2321a. The extension portion 2321c is disposed to protrude inward from the steel plate 233c and the indoor side facing portion 234b2 of the second steel plate portion 234b.

[0047] A vertical frame side airtight material 236 is fixed to the extension portion 2321c over the entire length of the vertical frame 23 in the longitudinal direction. The vertical frame side airtight material 236 is made of an elastic member made of rubber or resin having a hollow portion 236a. A plurality of groove-shaped airtight material fitting portions 2321d extending parallel to the longitudinal direction of the extension portion 2321c are formed on the surface of the extension portion 2321c facing the outdoor side X1. The vertical frame side airtight material 236 fits into the airtight material fitting portions 2321d while sliding along the longitudinal direction of the airtight material mounting base 2321. As a result, the vertical frame side airtight material 236 is attached to the airtight material mounting base 2321 so as to protrude toward the outdoor side X1.

[0048] Outside the hollow portion 2321a, there are formed a vertical wall portion 2321f that forms a sighting surface extending outwardly from the sighting surface 2321b across the tapping hole 2321e, and a concealed wall portion 2321g that extends from the outer end of the vertical wall portion 2321f toward the outside X1. As a result, a groove portion 2321h that opens toward the outside X1 is formed at the outer end of the airtight material mounting base 2321. As shown in Fig. 9, a screw hole 2321i that penetrates from the concealed wall portion 2321g to the hollow portion 2321a is formed at the upper end of the airtight material mounting base 2321.

[0049] The airtight material mounting base 2321 is mechanically fixed to the steel plate 233c from the indoor side X2 by a plurality of screws 23b. As a result, the airtight material mounting base 2321 is disposed on the indoor side X2 of the vertical frame body 231, which is a steel frame material, of the vertical frame 23.

[0050] As shown in Figures 3, 7 and 8, when the door bodies 3, 4 are in the closed position, the vertical-frame-side airtight material 236 abuts against the hanging side of the door bodies 3, 4 from the indoor side X2, and airtightly seals the gap between the door bodies 3, 4. As a result, as shown in Figures 7 and 8, a vertical airtight line AL2 is formed between the vertical frame 23 and the hanging side of the door bodies 3, 4. The vertical airtight line AL2 is formed along the vertical-frame-side airtight material 236 over the entire length of the vertical frame 23 between the vertical frame 23 and the hanging side of the door bodies 3, 4.

[0051] The airtight material mounting base 2321 of the vertical frame 23 is disposed on the indoor side X2 of the vertical airtight line AL2. As shown in Fig. 7 and Fig. 8, the airtight material mounting base 2321 extends inward from the line L21 of the indoor side visible portion 234b2 of the second steel plate portion 234b disposed at the innermost side of the vertical frame body 231, and also extends inward from the line L22 of the end faces on the hanging side of the door bodies 3 and 4. The airtight material mounting base 2321 covers the gap G2 between the lines L21 and L22 from the indoor side X2.

[0052] The vertical frame side airtight material 236 is attached to the steel vertical frame 23 via an airtight material mounting base 2321 separate from the vertical frame 23 to the airtight material fitting portion 2321d of the airtight material mounting base 2321, and is therefore easy to install and replace. The vertical frame side airtight material 236 can be attached to the vertical frame 23 at the construction site, so there is no risk of the vertical frame side airtight material 236 being damaged during transportation of the frame body 2, etc. The airtight material mounting base 2321 is mechanically fixed to the vertical frame 23 by screws 23b, and is therefore firmly joined to the vertical frame 23. The vertical frame side airtight material 236 may be partially bonded or riveted to the airtight material fitting portion 2321d, for example, at both ends.

[0053] As shown in Figs. 7 and 8, the cover material 2322 is attached to the airtight material mounting base 2321 and covers the entire airtight material mounting base 2321 from the indoor side X2. Outer extensions 2322a and 2322b extending to the outdoor side X1 are provided at both left and right ends of the cover material 2322. The outer extensions 2322a and 2322b are arranged to sandwich the entire airtight material mounting base 2321 from the left and right. The outer extension 2322b arranged on the inner end side of the cover material 2322 covers the vertical frame side airtight material 236 from the inside so that the vertical frame side airtight material 236 is difficult to see from a person passing through the hinged door 1. The outer extension 2322a arranged on the outer end side of the cover material 2122 does not contact the steel plate 233c as shown in Figs. 7 and 8.

[0054] 10, the airtight material mounting base 2121 of the upper frame 21 and the airtight material mounting bases 2321 of the left and right vertical frames 23 are arranged vertically so that the airtight material mounting bases 2321 of the left and right vertical frames 23 sandwich the airtight material mounting base 2121 of the upper frame 21. The left and right airtight material mounting bases 2321 are assembled by screws 237 that are screwed from the screw holes 2321i into the tapping holes 2121e of the airtight material mounting bases 2121 of the upper frame 21. The cover materials 2122, 2322 are attached to the integrally assembled airtight material mounting bases 2121, 2321 from the indoor side X2.

[0055] Next, the gates 3 and 4 will be described.

[0056] As shown in FIG. 1, the door bodies 3 and 4 have handles 3a and 4a for opening and closing operations, which extend in the vertical direction, on the surfaces of the door end side on the outside side X1 and the inside side X2, respectively. However, the shape of the handles 3a and 4a is arbitrary and is not limited to a shape extending in the vertical direction. When the door bodies 3 and 4 are in the closed position, they are arranged so that their door ends butt against each other at the center of the width direction inside the frame body 2. From the closed state, the door bodies 3 and 4 open the inside of the frame body 2 by rotating the door end side toward the outside side X1 around the axis of the pivot hinges 3b and 4b provided at the upper and lower parts of the hanging side, respectively, and close the inside of the frame body 2 by rotating the door end side toward the inside side X2.

[0057] Concealed door closers 3c, 4c are provided inside the upper parts of the door bodies 3, 4. The concealed door closers 3c, 4c are not noticeable from the outside because they are arranged inside the door bodies 3, 4, and have the function of closing the door bodies 3, 4 slowly and smoothly at a safe speed.

[0058] In the hinged door 1 shown in FIG. 1, the door body 3 on the right side is the parent door, and the door body 4 on the left side is the child door. Two locks 3d are attached to the inside of the door end side of the door body 3, which are arranged vertically and separately. The lock 3d of the door body 3 is provided so as to lock and unlock between the door body 3 and the door end side of the door body 4. A French stopper 4d is provided inside the upper and lower parts of the door end side of the door body 4. The French stopper 4d has a rod 4d1 that is provided so as to be movable up and down. The tip of the rod 4d1 of the French stopper 4d fits into a groove-shaped rod receiving portion 4d2 provided in the upper frame body 211 and the lower frame body 221, respectively, to hold the door body 4 in a closed state.

[0059] The structure of the door bodies 3 and 4 will be described in more detail with reference to Figs. 2 to 8. The door bodies 3 and 4 are substantially identical except for the structure of the front surface on the door end side. The description of the structure of the door body 3 shown in Figs. 4 and 5 also applies to the description of the structure of the door body 4. Therefore, the structures of the door bodies 3 and 4 with reference to Figs. 4 and 5 will be described with the reference numerals of both components. The components of the door body 3 are indicated with reference numerals beginning with "3", and the components of the door body 4 are indicated with reference numerals beginning with "4".

[0060] The door bodies 3, 4 each have a frame material 31, 41 formed in a rectangular frame shape, an exterior panel material 32a, 42a, an interior panel material 32b, 42b, an exterior decorative material 33a, 43a, and an interior decorative material 33b, 43b, respectively.

[0061] The frame members 31, 41 are formed by framing the upper frame members 311, 411, the lower frame members 312, 412, the end frame members 313, 413, and the hanging frame members 314, 414 in a rectangular shape. The upper frame members 311, 411, the lower frame members 312, 412, the end frame members 313, 413, and the hanging frame members 314, 414 are made of shaped members made of metals such as aluminum and steel, carbon, CFRP (Carbon Fiber Reinforced Plastics), etc. The upper frame member 311, the lower frame member 312, the end frame member 313, and the hanging frame member 314 are all hollow with polygonal cross-sections, and have hollow portions 311a, 312a, 313a, and 314a, respectively, inside.

[0062] The outdoor panel materials 32a, 42a and the indoor panel materials 32b, 42b are made of plate materials such as wood, resin, or metal. The outdoor panel materials 32a, 42a and the indoor panel materials 32b, 42b are arranged so as to cover the outdoor exterior X1 and indoor interior X2 faces of the rectangular frame materials 31, 41, respectively. Filling materials such as paper honeycomb or heat insulating materials 30, 40 are accommodated in the internal space surrounded by the frame materials 31, 41 and the outdoor exterior panel materials 32a, 42a and the indoor interior panel materials 32b, 42b.

[0063] The outdoor panel materials 32a, 42a and the indoor panel materials 32b, 42b are fixed to the frame materials 31, 41 by a plurality of screws 320a, 420a, 320b, 420b at the peripheral portions along the frame materials 31, 41. The outdoor panel materials 32a, 42a and the indoor panel materials 32b, 42b may be bonded to the filling material or the insulating material 30, 40 by an adhesive. The outdoor panel materials 32a, 42a and the indoor panel materials 32b, 42b may each be divided into a plurality of pieces in the surface direction to match the framework shape of the frame materials 31, 41.

[0064] The exterior decorative materials 33a, 43a and the interior decorative materials 33b, 43b are finishing materials that form the exterior X1 and interior X2 surfaces of the door bodies 3, 4, respectively, and that constitute the design of the surfaces of the door bodies 3, 4. The exterior decorative materials 33a, 43a and the interior decorative materials 33b, 43b are attached so as to cover the entire surfaces of the exterior panel materials 32a, 42a and the interior panel materials 32b, 42b. This improves the design of the door bodies 3, 4.

[0065] The exterior decorative materials 33a, 43a and the interior decorative materials 33b, 43b are formed of wood boards, glass boards, steel boards, resin boards, ceramic boards, metal tiles, resin tiles, porcelain tiles, stones, etc. The exterior decorative materials 33a, 43a and the interior decorative materials 33b, 43b are attached to the surfaces of the exterior panel materials 32a, 42a and the interior panel materials 32b, 42b, which are the base materials, using screws, adhesives, etc.

[0066] As shown in Figure 4, the upper end faces 32a1, 42a1, 33a1, 43a1 of the outdoor panel materials 32a, 42a and the outdoor decorative materials 33a, 43a of the door bodies 3, 4 are arranged flush in the forward direction, and a trim material 34a is provided to cover the end faces 32a1, 42a1, 33a1, 43a1 of the outdoor panel materials 32a, 42a and the outdoor decorative materials 33a, 43a. The upper end faces 32b1, 42b1, 33b1, 43b1 of the indoor side panel materials 32b, 42b and the indoor side decorative materials 33b, 43b in the door bodies 3, 4 are arranged flush in the forward direction, and a trim material 34b is provided to cover the end faces 32b1, 42b1, 33b1, 43b1 of the indoor side panel materials 32b, 42b and the indoor side decorative materials 33b, 43b.

[0067] As shown in Figure 6, the end faces 32a2, 42a2, 33a2, 43a2 of the lower ends of the outdoor panel materials 32a, 42a and the outdoor decorative materials 33a, 43a in the door bodies 3, 4 are arranged flush in the forward direction, and a trim material 35a is provided to cover the end faces 32a2, 42a2, 33a2, 43a2 of the outdoor panel materials 32a, 42a and the outdoor decorative materials 33a, 43a. The end faces 32b2, 42b2, 33b2, 43b2 of the lower ends of the indoor side panel materials 32b, 42b and the indoor side decorative materials 33b, 43b in the door bodies 3, 4 are arranged flush in the forward direction, and a trim material 35b is provided to cover the end faces 32b2, 42b2, 33b2, 43b2 of the indoor side panel materials 32b, 42b and the indoor side decorative materials 33b, 43b.

[0068] Next, the upper frame members 311, 411, the lower frame members 312, 412, the door end side frame members 313, 413 and the hanging side frame members 314, 414 in the frame members 31, 41 will be further explained.

[0069] 4, the upper frame members 311, 411 of the door bodies 3, 4 have upper end visible surfaces 3111, 4111 at the upper ends of the door bodies 3, 4 facing the upper frame 21. The upper end visible surfaces 3111, 4111 are configured to have upper end visible surface main bodies 3111a, 4111a, standing wall surfaces 3111b, 4111b, and room side visible surfaces 3111c, 4111c.

[0070] The upper end visible surface main bodies 3111a, 4111a extend from the upper ends of the visible surfaces 311b, 411b on the outdoor side X1 of the upper frame members 311, 411 toward the indoor side X2. The upper end visible surface main bodies 3111a, 4111a are disposed opposite the steel plate 211h disposed on the lower surface of the upper frame 21, and occupy most of the area of ​​the upper end visible surfaces 3111, 4111. The upper end trim materials 34a, 44a of the outdoor panel members 32a, 42a and the outdoor decorative members 33a, 43a are disposed flush with the upper end visible surface main bodies 3111a, 4111a.

[0071] The vertical wall surfaces 3111b, 4111b hang down from the end of the upper end visible surface main body 3111a, 4111a on the indoor side X2. The position of the vertical wall surfaces 3111b, 4111b in the visible direction is located below the steel plate 211g on the indoor side X2 of the upper frame 21 when the door body 3, 4 is in the closed position.

[0072] The indoor side visible surfaces 3111c, 4111c extend from the lower ends of the vertical wall surfaces 3111b, 4111b toward the indoor side X2. The indoor side panel materials 32b, 42b and the upper end trim materials 34b, 44b of the indoor side decorative materials 33b, 43b are arranged flush with the indoor side visible surfaces 3111c, 4111c.

[0073] As a result, the upper end visible surface 3111, 4111 of the door body 3, 4 is formed in a stepped shape with the indoor side X2 being one step lower along the projection direction. The upper end visible surface 3111, 4111 has an upper end step portion 311S, 411S formed by the vertical wall surface 3111b, 4111b and the indoor side visible surface 3111c, 4111c on the indoor side X2 of the upper end visible surface main body 3111a, 4111a. The upper end step portion 311S, 411S extends from the vertical wall surface 3111b, 4111b along the indoor side visible surface 3111c, 4111c and the parting material 34b, 44b.

[0074] The vertical wall surfaces 3111b, 4111b are arranged to face the upper frame side airtight material 216 provided on the upper frame 21 from the outside X1, and constitute an abutment surface with the upper frame side airtight material 216 at the upper end step portion 311S, 411S. The airtight line AL1 shown in FIG. 4 is formed along this abutment surface. When the door bodies 3, 4 are in the closed position, the indoor side visible surface 3111c, 4111c and the indoor side panel material 32b, 42b are arranged below the door stop portion 212, and the indoor side decorative material 33b, 43b are arranged at a position protruding from the door stop portion 212 to the indoor side X2. Therefore, when the door bodies 3, 4 are in the closed position, the entire door stop portion 212 including the upper frame side airtight material 216 does not protrude from the door bodies 3, 4 to the indoor side X2.

[0075] 6, the lower frame materials 312, 412 of the door bodies 3, 4 have lower end visible surfaces 3121, 4121 at the lower ends of the door bodies 3, 4 facing the lower frame 22. The lower end visible surfaces 3121, 4121 are configured to have lower end visible surface main bodies 3121a, 4121a, vertical wall surfaces 3121b, 4121b, and room side visible surfaces 3121c, 4121c.

[0076] The lower end visible surface main bodies 3121a, 4121a extend from the lower ends of the visible surfaces 312b, 412b on the outdoor side X1 of the lower frame members 312, 412 toward the indoor side X2. The lower end visible surface main bodies 3121a, 4121a face the upper surface 221e of the lower frame body 221 and occupy most of the area of ​​the lower end visible surfaces 3121, 4121.

[0077] The vertical wall surfaces 3121b, 4121b rise upward from the end of the lower end visible surface main body 3121a, 4121a on the indoor side X2. The position of the vertical wall surfaces 3121b, 4121b in the visible direction is located on the indoor side X2 of the lower frame main body 221 from the indoor side X2 visible surface 221d when the door body 3, 4 is in the closed position.

[0078] The indoor side visible surfaces 3121c, 4121c extend from the upper ends of the standing wall surfaces 3121b, 4121b toward the indoor side X2. The parting materials 35b, 45b at the lower ends of the indoor side decorative materials 33b, 43b and the indoor side visible surfaces 3121c, 4121c are arranged to be flush with each other.

[0079] As a result, the lower end projection surface 3121, 4121 of the door body 3, 4 is formed in a stepped shape with the indoor side X2 being one step higher along the projection direction. The lower end projection surface 3121, 4121 has a lower end step portion 312S, 412S formed by the vertical wall surface 3121b, 4121b and the indoor side projection surface 3121c, 4121c on the indoor side X2 of the lower end projection surface main body 3121a, 4121a. The lower end step portion 312S, 412S extends from the vertical wall surface 3121b, 4121b along the indoor side projection surface 3121c, 4121c and the parting material 35b, 45b.

[0080] The vertical wall surfaces 3121b, 4121b are arranged to face the lower frame side airtight material 224 provided on the lower frame 22 from the outside X1, and form a contact surface with the lower frame side airtight material 224 at the lower end step portion 312S, 412S. When the door bodies 3, 4 are in the closed position, the indoor side visible surface 3121c, 4121c and the indoor side panel material 32b, 42b are arranged above the door stop portion 222, and the indoor side decorative material 33b, 43b are arranged in a position protruding toward the indoor side X2 from the door stop portion 222. Therefore, when the door bodies 3, 4 are in the closed position, the entire door stop portion 222 including the lower frame side airtight material 224 does not protrude toward the indoor side X2 from the door bodies 3, 4.

[0081] As shown in Fig. 11, the door-end side frame material 313 of the door body 3 has a door-end side visible surface 3131 on the door-end side that is abutted against the door body 4. The door-end side visible surface 3131 is composed of a door-end side visible surface main body 3131a, an outdoor side visible surface 3131b, an outdoor side standing wall surface 3131c, an indoor side visible surface 3131d, and an indoor side standing wall surface 3131e.

[0082] The door edge side of the outdoor panel material 32a and the outdoor decorative material 33a of the door body 3 protrudes toward the door body 4 further than the door edge side visible surface main body 3131a. The door edge side visible surface main body 3131a is disposed on the indoor side X2 further than the outdoor panel material 32a, and occupies most of the area of ​​the door edge side visible surface 3131.

[0083] The door edge side of the exterior decorative material 33a protrudes toward the door body 4 further than the exterior panel material 32a. The exterior visible surface 3131b covers the end face 32a3 on the door edge side of the exterior panel material 32a, but does not cover the end face 33a3 on the door edge side of the exterior decorative material 33a. The exterior visible surface 3131b is disposed flush with the end face 33a3 on the door edge side of the exterior decorative material 33a.

[0084] The outdoor vertical wall surface 3131c is arranged along the indoor side X2 side of the outdoor panel material 32a, which protrudes toward the door body 4 further than the door end side visible surface main body 3131a, and connects the indoor side X2 end of the outdoor side visible surface 3131b to the outdoor side X1 end of the door end side visible surface main body 3131a.

[0085] The door edge sides of the indoor side panel material 32b and the indoor side decorative material 33b are disposed closer to the hinge of the door body 3 than the door edge side visible surface main body 3131a. The door edge side of the indoor side decorative material 33b protrudes toward the door body 4 side than the indoor side panel material 32b. The indoor side visible surface 3131d covers the end surface 32b3 on the door edge side of the indoor side panel material 32b, but does not cover the end surface 33b3 on the door edge side of the indoor side decorative material 33b. The indoor side visible surface 3131d is disposed flush with the end surface 33b3 on the door edge side of the indoor side decorative material 33b.

[0086] The indoor side standing wall surface 3131e connects the indoor side X2 end of the door end side front surface main body 3131a and the outdoor side X1 end of the indoor side front surface 3131d. The indoor side standing wall surface 3131e is located on the outdoor side X1 further than the indoor side panel material 32b in the front direction.

[0087] As a result, the door end side visible surface 3131 of the door body 3 is formed in a stepped shape in which the outdoor side X1 is one step higher than the door body 4 and the indoor side X2 is one step lower than the door body 4 along the visible direction. The door end side visible surface 3131 has a first door end side step portion 313S1 formed by the outdoor side visible surface 3131b and the outdoor side standing wall surface 3131c on the outdoor side X1 of the door end side visible surface main body 3131a, and has a second door end side step portion 313S2 formed by the indoor side visible surface 3131d and the indoor side standing wall surface 3131e on the indoor side X2 of the door end side visible surface main body 3131a. The first door end side step portion 313S1 is formed across the outdoor side standing wall surface 3131c and the outdoor side visible surface 3131b. The second door-end side step portion 313S2 extends from the indoor side vertical wall surface 3131e along the indoor side visible surface 3131d to the end surface 33b3 of the indoor side decorative material 33b.

[0088] A door-end airtight material 36 is attached to the outdoor side standing wall surface 3131c over the entire vertical length of the door body 3. The door-end airtight material 36 is made of a fin-shaped elastic member made of rubber or resin. The door-end airtight material 36 is attached to an airtight material mounting base 361 bonded to the outdoor side standing wall surface 3131c, and protrudes toward the indoor side X2. The airtight material mounting base 361 is formed of an extruded material made of aluminum or resin, and extends over the entire vertical length of the door body 3.

[0089] A groove-shaped airtight material fitting portion 361a extending along the length direction of the airtight material mounting base 361 is formed on the indoor side X2 surface of the airtight material mounting base 361. The leading-side airtight material 36 fits into the airtight material fitting portion 361a while sliding along the up-down direction of the door body 3. In this way, the leading-side airtight material 36 is attached to the airtight material mounting base 361. The leading-side airtight material 36 is disposed within the first leading-side step portion 313S1 of the door body 3 and does not protrude beyond the door body 3 toward the outdoor side X1.

[0090] The door-end side airtight material 36 is attached to the steel door-end side frame material 313 of the door body 3 via an airtight material mounting base 361 separate from the door-end side frame material 313 to the airtight material fitting portion 361a of the airtight material mounting base 361, so that it is easy to attach and replace. The door-end side airtight material 36 can be attached to the door-end side frame material 313 at the construction site, so there is no risk of the door-end side airtight material 36 being damaged during transportation of the door body 3, etc. The airtight material mounting base 361 is bonded to the door-end side frame material 313, so it can be easily attached to the door-end side frame material 313. The door-end side airtight material 36 may be partially bonded or riveted to the airtight material fitting portion 361a, for example, at both ends.

[0091] As shown in Fig. 11, the door-end side frame material 413 of the door body 4 has a door-end side visible surface 4131 on the door-end side that is abutted against the door body 3. The door-end side visible surface 4131 is composed of a door-end side visible surface main body 4131a, an outdoor side visible surface 4131b, an outdoor side standing wall surface 4131c, and an indoor side standing wall surface 4131d.

[0092] The door edge side of the indoor side decorative material 43b of the door body 4 protrudes toward the door body 3 more than the indoor side panel material 42b, and further protrudes toward the door body 3 more than the door edge side visible surface main body 4131a. The door edge side visible surface main body 4131a is disposed on the indoor side X2 more than the indoor side decorative material 43b, and covers the door edge side small end surface 42b3 of the indoor side panel material 42b. The door edge side visible surface main body 4131a occupies most of the area of ​​the door edge side visible surface 4131.

[0093] The door edge sides of the outdoor panel material 42a and the outdoor decorative material 43a are disposed closer to the hinge of the door body 4 than the door edge side front surface main body 4131a. The door edge side of the outdoor decorative material 43a protrudes toward the door body 3 side than the outdoor panel material 42a. The outdoor front surface 4131b covers the end surface 42a3 on the door edge side of the outdoor panel material 42a, but does not cover the end surface 43a3 on the door edge side of the outdoor decorative material 43a. The outdoor front surface 4131b is disposed flush with the end surface 43a3 on the door edge side of the outdoor decorative material 43a.

[0094] The outdoor standing wall surface 4131c extends from the outdoor side X1 end of the door end side front surface main body 4131a toward the hanging side of the door body 4. The outdoor standing wall surface 4131c connects the outdoor side X1 end of the door end side front surface main body 4131a and the indoor side X2 end of the outdoor side front surface 4131b. The outdoor standing wall surface 4131c is positioned on the indoor side X2 of the outdoor side standing wall surface 3131c of the door body 3 when the door bodies 3 and 4 are in the closed position.

[0095] The indoor side standing wall surface 4131d extends from the end of the indoor side X2 of the door end side visible surface main body 4131a to the door body 3 side along the side surface of the indoor side decorative material 43b on the outdoor side X1. A folded part 4131e folded back toward the outdoor side X1 is provided at the end of the indoor side standing wall surface 4131d on the door body 3 side. The folded part 4131e is arranged parallel to the door end side visible surface main body 4131a. The folded part 4131e is arranged flush with the small end surface 43b3 on the door end side of the indoor side decorative material 43b. The end of the outdoor side X1 of the folded part 4131e is located on the outdoor side X1 of the indoor side panel material 42b, and is located on the indoor side X2 of the indoor side standing wall surface 3131e of the door body 3 when the door bodies 3, 4 are in the closed position.

[0096] As a result, the door end side visible surface 4131 of the door body 4 is formed in a stepped shape in which the outdoor side X1 is one step lower than the door body 3 and the indoor side X2 is one step higher than the door body 3 along the visible direction. The door end side visible surface 4131 has a first door end side step portion 413S1 formed by the outdoor side visible surface 4131b and the outdoor side standing wall surface 4131c on the outdoor side X1 of the door end side visible surface main body 4131a, and has a second door end side step portion 413S2 formed by the indoor side standing wall surface 4131d on the indoor side X2 of the door end side visible surface main body 4131a. The first door end side step portion 413S1 extends from the outdoor side standing wall surface 4131c along the outdoor side visible surface 4131b to the small end surface 43a3 on the door end side of the outdoor exterior decorative material 43a.

[0097] A door-end side airtight material 46 is attached to the indoor side vertical wall surface 4131d over the entire vertical length of the door body 4. The door-end side airtight material 46 is made of an elastic member made of rubber or resin and has a hollow portion 46a. The door-end side airtight material 46 is fixed to an airtight material mounting base 461 adhered to the indoor side vertical wall surface 4131d, and protrudes toward the outside X1. The airtight material mounting base 461 is formed of an extruded material made of aluminum or resin, and extends over the entire vertical length of the door body 4.

[0098] A groove-shaped airtight material fitting portion 461a extending along the length direction of the airtight material mounting base 461 is formed on the outside X1 surface of the airtight material mounting base 461. The end-side airtight material 46 fits into the airtight material fitting portion 461a while sliding along the up-down direction of the door body 4. In this way, the end-side airtight material 46 is attached to the airtight material mounting base 461. The end-side airtight material 46 is disposed within the second end-side step portion 413S2 of the door body 4 and does not protrude further toward the inside X2 than the door body 4.

[0099] The door-end side airtight material 46 is attached to the steel door-end side frame material 413 of the door body 4 via an airtight material mounting base 461 separate from the door-end side frame material 413 to the airtight material fitting portion 461a of the airtight material mounting base 461, so that it is easy to attach and replace. The door-end side airtight material 46 can be attached to the door-end side frame material 413 at the construction site, so there is no risk of the door-end side airtight material 46 being damaged during transportation of the door body 4. The airtight material mounting base 461 is bonded to the door-end side frame material 413, so it can be easily attached to the door-end side frame material 413. The door-end side airtight material 46 may be partially bonded or riveted to the airtight material fitting portion 461a, for example, at both ends.

[0100] The leading edge airtight material 46 is disposed within the second leading edge step portion 413S2 of the door body 4. The leading edge airtight material 46 is disposed within the width of the door body 4 in the forward direction, and does not protrude toward the room side X2 beyond the door body 4. The folded portion 4131e covers the leading edge airtight material 46 from the door body 3 side so that the leading edge airtight material 46 is difficult to see from people passing through the hinged door 1 with only the door body 3 open.

[0101] The second leading edge step 313S2 of the door body 3 has a projected dimension and a visible dimension capable of accommodating the entire area extending from the leading edge surface 43b3 of the indoor side decorative material 43b of the door body 4 to the leading edge airtight material 46. The first leading edge step 413S1 of the door body 4 has a projected dimension and a visible dimension capable of accommodating the entire area extending from the leading edge surface 33a3 of the outdoor side decorative material 33a of the door body 3 to the leading edge airtight material 36.

[0102] As a result, the leading edge side visible surface 3131 of the door body 3 and the leading edge side visible surface 4131 of the door body 4 have a complementary step shape. In detail, as shown in FIG. 11, when the door bodies 3 and 4 are in the closed position, the first leading edge side step portion 313S1 of the door body 3 is disposed protruding toward the door body 4 side from the leading edge side visible surface main body 3131a of the door body 3, and the first leading edge side step portion 413S1 of the door body 4 is disposed recessed toward the hanging side of the door body 3 from the leading edge side visible surface main body 4131a of the door body 4. The second leading edge side step portion 313S2 of the door body 3 is disposed recessed toward the hanging side of the door body 3 from the leading edge side visible surface main body 3131a of the door body 3, and the second leading edge side step portion 413S2 of the door body 4 is disposed protruding toward the door body 3 side.

[0103] Furthermore, the outdoor side vertical wall surface 3131c of the first door end side step portion 313S1 in the door body 3 is arranged to face the outdoor side vertical wall surface 4131c of the first door end side step portion 413S1 in the door body 4 from the outdoor side X1, and the indoor side vertical wall surface 4131d of the second door end side step portion 413S2 in the door body 4 is arranged to face the indoor side vertical wall surface 3131e of the second door end side step portion 313S2 in the door body 3 from the indoor side X2.

[0104] Therefore, when the door bodies 3 and 4 are in the closed position, the leading-side airtight material 36 of the door body 3 abuts against the outdoor side standing wall surface 4131c of the first leading-side step portion 413S1 of the door body 4 from the outdoor side X1, airtightly sealing the gap with the door body 4. The leading-side airtight material 46 of the door body 4 abuts against the indoor side standing wall surface 3131e of the second leading-side step portion 313S2 of the door body 3 from the indoor side X2, airtightly sealing the gap with the door body 3.

[0105] 7 and 8, the hanging side frame material 314, 414 of the door body 3, 4 has a hanging side visible surface 3141, 4141 at the end of the hanging side of the door body 3, 4 facing the vertical frame 23. The hanging side visible surface 3141, 4141 is composed of a hanging side visible surface main body 3141a, 4141a, an inclined wall surface 3141b, 4141b, a vertical wall surface 3141c, 4141c, and a room side visible surface 3141d, 4141d.

[0106] The hanging-side front surface main body 3141a, 4141a is disposed to face the vertical frame main body 231, and occupies approximately half the area of ​​the outside X1 in the front direction of the door body 3, 4. The hanging-side front surface main body 3141a, 4141a covers the end surface 32a4 on the hanging side of the outdoor panel material 32a, 42a, but does not cover the end surface 33a4, 43a4 on the hanging side of the outdoor decorative material 33a, 43a. The end surface 33a4, 43a4 on the hanging side of the outdoor decorative material 33a, 43a is disposed flush with the hanging-side front surface main body 3141a, 4141a.

[0107] The inclined wall surfaces 3141b, 4141b extend obliquely from the ends of the hanging-side visible surface main bodies 3141a, 4141a on the indoor side X2 toward the indoor side X2 and in a direction away from the vertical frame 23.

[0108] The vertical wall surfaces 3141c, 4141c extend from the ends of the inclined wall surfaces 3141b, 4141b on the indoor side X2 in a direction away from the vertical frame 23. The positions of the vertical wall surfaces 3141c, 4141c in the prospective direction are disposed on the outdoor side X1 further than the indoor side panel materials 32b, 42b, and are close enough to abut against the vertical frame side airtight material 236 provided on the door stop portion 232 of the vertical frame 23.

[0109] The indoor side visible surface 3141d, 4141d extends from the end of the vertical wall surface 3141c, 4141c on the door tip side toward the indoor side X2. The indoor side visible surface 3141d, 4141d covers the end surface 32b4, 42b4 on the hanging side of the indoor side panel material 32b, 42b, but does not cover the end surface 33b4, 43b4 on the hanging side of the indoor side decorative material 33b, 43b. The end surface 33b4, 43b4 on the hanging side of the indoor side decorative material 33b, 43b is arranged flush with the indoor side visible surface 3141d, 4141d.

[0110] As a result, the hanging side visible surface 3141, 4141 of the door body 3, 4 is formed in a stepped shape with the indoor side X2 being one step lower along the visible direction. The hanging side visible surface 3141, 4141 has a hanging side step 314S, 414S formed by the vertical wall surface 3141c, 4141c and the indoor side visible surface 3141d, 4141d on the indoor side X2 of the hanging side visible surface main body 3141a, 4141a. The hanging side step 314S, 414S extends along the indoor side visible surface 3141d, 4141d to the end surface 33b4, 43b4 on the hanging side of the indoor side decorative material 33b, 43b.

[0111] The vertical wall surfaces 3141c, 4141c are arranged to face the vertical frame side airtight material 236 provided in the door stop portion 232 of the vertical frame 23 from the outside X1, and form an abutment surface with the vertical frame side airtight material 236 at the hanging side step portion 314S, 414S. The airtight line AL2 is formed along this abutment surface. The indoor side visible surface 3141d, 4141d is arranged on the door tip side of the door stop portion 232. When the door bodies 3, 4 are in the closed position, the indoor side visible surface 3141d, 4141d and the indoor side panel material 32b, 42b are arranged inside the door stop portion 232, and the indoor side decorative material 33b, 43b is arranged in a position protruding toward the indoor side X2 from the door stop portion 232. The hanging side step portions 314S, 414S have projection dimensions and visible dimensions capable of accommodating the entire door stop portion 232 including the vertical frame side airtight material 236 of the vertical frame 23. Therefore, the entire door stop portion 232 including the vertical frame side airtight material 236 does not protrude further toward the room side X2 than the door bodies 3, 4.

[0112] In the present disclosure, the airtight material mounting base may be mechanically fixed by caulking. FIG. 12 shows an example in which the airtight material mounting base 461 provided on the door end side frame material 413 of the door body 4 is mechanically fixed to the door end side frame material 413 by caulking. The airtight material mounting base 461 is fixed by caulking the folded part 4131e provided integrally with the indoor side vertical wall surface 4131d of the door end side frame material 413. That is, the folded part 4131e deforms toward the airtight material mounting base 461 and sandwiches the airtight material mounting base 461 between the door end side visible surface main body 4131a. As a result, the airtight material mounting base 461 is mechanically fixed to the door end side frame material 413. By mechanically fixing by caulking, the airtight material mounting base can be firmly joined to the steel frame material without using a separate fixing part such as a screw.

[0113] Such mechanical fixing by crimping can be similarly applied when attaching the airtight material mounting base to either the frame body 2 or the door bodies 3, 4.

[0114] According to the fitting (hinged door 1) of this embodiment described above, the following effects are achieved.

[0115] (1) A fixture (hinged door 1) having steel frame materials (upper frame 21, lower frame 22, vertical frame 23, door-end frame materials 313, 413) and airtight materials (upper frame airtight material 216, lower frame airtight material 224, vertical frame airtight material 236, door-end airtight material 36, 46) that ensure airtightness in the indoor and outdoor directions, and the airtight materials are attached to the frame materials via airtight material mounting bases 2121, 2221, 2321, 361, 461 that are separate from the frame materials.

[0116] According to this, the airtight material can be attached to the frame material via an airtight material mounting base that is separate from the frame material, so that the airtight material can be easily attached and replaced to the steel frame material.

[0117] (2) In the above (1), the airtight material mounting bases 2121, 2221, 2321, 361, 461 are mechanically fixed to the frame materials (upper frame 21, lower frame 22, vertical frame 23, door-end frame materials 313, 413).

[0118] This allows the airtight material mounting base to be firmly joined to the frame material.

[0119] (3) In (2) above, the airtight material mounting bases 2121, 2221, 2321, 361, 461 are mechanically fixed by crimping to the frame materials (upper frame 21, lower frame 22, vertical frame 23, door-end frame materials 313, 413).

[0120] This allows the airtight material mounting base to be firmly joined to the frame material without using any additional fixing parts.

[0121] (4) In the above (1), the airtight material mounting bases 2121, 2221, 2321, 361, 461 are adhered to the frame materials (upper frame 21, lower frame 22, vertical frame 23, door end frame materials 313, 413).

[0122] This makes it possible to easily join the airtight material mounting base to the frame material.

[0123] In the above embodiment, a hinged door 1 having two door bodies 3 and 4 has been shown, but the fitting of the present disclosure may have one door body housed inside a frame body so that it can be opened and closed. The fitting of the present disclosure may have an openable door body and a sleeve door, which is a fixed door, housed inside a frame body. Furthermore, the fitting of the present disclosure is not limited to a hinged door, and may be a sliding door. [Explanation of symbols]

[0124] 1 Swing door (door fitting), 21 Upper frame (frame material), 22 Lower frame (frame material), 23 Vertical frame (frame material), 313, 413 Door end frame material, 216 Upper frame airtight material, 224 Lower frame airtight material, 236 Vertical frame airtight material, 36, 46 Door end airtight material, 2121, 2221, 2321, 361, 461 Airtight material mounting base

Claims

1. A building material having a steel frame material and an airtight material that provides airtightness in the indoor and outdoor directions, The airtight material is attached to the frame material via an airtight material mounting base that is separate from the frame material.

2. The fixture of claim 1 , wherein the airtight material mounting base is mechanically fixed to the framing material.

3. The fitting according to claim 2 , wherein the airtight material mounting base is mechanically fixed by crimping to the frame material.

4. The building fixture according to claim 1 , wherein the airtight material mounting base is adhered to the frame material.

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