JP6858644B2 - Joinery - Google Patents

Description

The present invention relates to a fitting having a door body rotatably supported by a frame body.

As a door body provided in the fitting, for example, a door body that is arranged in the frame of the framed frame body and is attached to the frame body so as to be openable and closable by using a pivot hinge is known (see, for example, Patent Document 1). ). In this door body, a core material made of a rod-shaped member having a U-shaped cross section is formed in a rectangular frame shape, and is arranged along the ends of four sides between the indoor side steel plate and the outdoor side steel plate.

Japanese Unexamined Patent Publication No. 2013-197009

The core material having the U-shaped cross section of the door body described above has a portion forming a prospective surface along the prospective direction in the closed state of the door body and a surface from both ends in the prospective direction of the portion forming the prospective surface. It has an extension piece that extends inward. For this reason, when the door body is heated by a fire whose fire source is one side of the door body, the extension piece on the fire source side is heated and the core material is extended on the fire source side. Since one piece has a larger extension than the extension piece on the opposite side of the fire source, the core material warps.

The door body that is openable and closable to the frame body has the outer peripheral portion of the door body facing the frame body on the side opposite to the open side where the door tip moves when the door body is opened. The amount of warpage is larger when the body is heated from the side opposite to the open side than when the body is heated from the open side. Further, the core material is more likely to warp on the door end side where the door body is regulated by a latch or the like than on the hanging side where the door body is regulated by a hinge or the like.

For this reason, when heating is performed from the side opposite to the open side, the vertical core material on the door end side regulated by the latch or the like becomes larger as the distance from the portion regulated by the latch or the like increases. There is a possibility that a through hole may be formed between the upper and lower ends of the door body and the frame body due to the movement in the direction in which the distance between the door and the body is widened.
The present invention has been made in view of such a problem, and an object of the present invention is to provide a fitting having a door body which is less likely to warp even when heated.

In order to achieve such an object, the fitting of the present invention has a frame body and a door body that is rotatably supported by the frame body and can close the opening, and the door body is made of metal at the door tip. The door tip vertical aggregate is provided with a thickness direction wall portion along the thickness direction of the door body and a door tip of the thickness direction wall portion when the door body is opened. It has an open side extension piece provided on the moving open side and extended to the hanging source side, and the closed side of the wall portion in the thickness direction opposite to the opening side extends to the hanging source side. It is a fitting that is characterized by not being put out.

According to such fittings, the closed side of the vertical aggregate of the door end provided in the door body does not extend to the hanging side, so even if the closed side of the door body is heated, the closed side of the vertical aggregate of the door tip is closed. The side is less likely to be heated, and the vertical aggregate at the door is less likely to warp. Therefore, it is possible to provide a fitting having a door body that is less likely to warp even when heated.

Further, it has a frame body and a door body that is rotatably supported by the frame body and can close the opening, and the door body is provided with a metal door tip vertical aggregate at the door tip. The vertical aggregate of the door tip is provided on the wall portion in the thickness direction along the thickness direction of the door body and the open side of the wall portion in the thickness direction in which the door tip moves when the door body is opened, and is provided on the hanging side. It has an extended open side extension piece, and the closing side of the wall portion in the thickness direction opposite to the opening side is provided with a closing side extending piece extending to the hanging source side. It is a fitting characterized in that it has a part that is present and a part that is not provided.

According to such fittings, the closed side of the vertical aggregate of the door end provided in the door body has a portion where the closed side extending piece extending to the hanging source side is not provided, so that even if the door is used. Even if the closed side of the body is heated, it is less likely to be heated than when the closed side extension piece is provided over the entire length on the closed side of the vertical aggregate of the door, and the vertical aggregate of the door is less likely to warp. Therefore, it is possible to provide a fitting having a door body that is less likely to warp even when heated.

Further, it has a frame body and a door body that is rotatably supported by the frame body and can close the opening, and the door body is provided with a metal door tip vertical aggregate at the door tip. The vertical aggregate of the door tip is provided on the wall portion in the thickness direction along the thickness direction of the door body and the open side of the wall portion in the thickness direction in which the door tip moves when the door body is opened, and is provided on the hanging side. It has an extended open side extension piece, and a closing side extension piece extended to the hanging source side is provided on the closing side of the wall portion in the thickness direction opposite to the opening side. The obstruction-side extension piece is a fitting characterized in that it has portions having different extension lengths.

According to such fittings, the obstructed extending pieces provided on the obstructing side of the vertical aggregate of the door end provided in the door body and extending to the hanging side have portions having different extension lengths. Therefore, even if the closed side of the door body is heated, it is harder to heat than when the extension length of the closed side extension piece of the door end vertical aggregate is long over the entire length, and the door tip vertical aggregate is heated. Warpage is unlikely to occur. Therefore, it is possible to provide a fitting having a door body that is less likely to warp even when heated.

In such fittings, it is desirable that the obstruction side extension piece has a short extension piece having an extension length shorter than that of the open side extension piece.
Since the outer peripheral portion of the door body faces the frame body on the closed side, the amount of warpage is larger when the door body is heated from the closed side than when it is heated from the open side. For this reason, if the closed side extension piece has a short extension piece having a shorter extension length than the open side extension piece as in the above fitting, the closed side extension piece is difficult to be heated, so that the closed side extension piece is not easily heated. It is effective by suppressing the warp of the vertical aggregate at the door when heated from.

In such a fitting, the frame body has a door stop member with which the closed side surface of the door end comes into contact with the door body when the door body is closed, and the short extension piece is extended. It is desirable that the tip of the door stop member is located on the door end side of the edge of the door stop member on the hanging side.

According to such fittings, since the door stop member is arranged on the closed side of the short extension piece, the short extension piece is less likely to be heated even if the door body is heated from the closed side. Therefore, it is possible to provide a fitting having a door body that is less likely to warp.

In such a fitting, the frame body has a door stop member holding portion for holding a door stop member to which the closed side surface of the door end comes into contact with the door body when the door body is closed. It is desirable that the extended tip of the short extension piece is located on the door tip side of the hanging side edge of the door stop member holding portion.

According to such fittings, since the door stop member holding portion is arranged on the closed side of the short extension piece, the short extension piece is less likely to be heated even if the door body is heated from the closed side. Therefore, it is possible to provide a fitting having a door body that is less likely to warp.

In such a fitting, the door body has an upper horizontal aggregate provided in the upper part and a lower horizontal aggregate provided in the lower part, and the upper end portion of the door tip vertical aggregate has the door tip vertical. An upper facing portion facing the upper transverse aggregate is provided in the longitudinal direction of the aggregate, and the lower end portion of the door tip vertical aggregate faces the lower transverse aggregate in the longitudinal direction of the door tip vertical aggregate. It is desirable that a lower facing portion is provided.

According to such fittings, the upper horizontal aggregate, the lower horizontal aggregate, and the vertical aggregate of the door are opposed to each other in the longitudinal direction of the vertical aggregate of the door, so that the vertical aggregate of the door is heated. When elongated, the superior transverse aggregate and the inferior transverse aggregate suppress the elongation of the vertical aggregate at the door. Therefore, it is possible to provide a fitting having a door body that is less likely to warp.

According to the present invention, it is possible to provide a fitting having a door body that is less likely to warp even when heated.

It is a vertical cross-sectional view which shows the fitting which concerns on this embodiment. It is a horizontal sectional view which shows the fitting which concerns on this embodiment. It is the figure which looked at the opening frame and the reinforcing member from the indoor side. It is a view of arrow A in FIG. 5 (a) is a sectional view of the entrance door at the position BB of FIG. 3, FIG. 5 (b) is a sectional view of the entrance door at the position CC of FIG. 3, and FIG. 5 (c) is the entrance. It is sectional drawing at the DD position of FIG. 3 of a door. It is a perspective view which shows the door end vertical aggregate. It is sectional drawing which shows the door end vertical aggregate which has a short extension piece. FIG. 8 (a) is a cross-sectional view showing a vertical aggregate at the door end provided with a short extension piece having a uniform extension length, and FIG. 8 (b) shows an indoor extension piece provided over the entire length. It is sectional drawing which shows the vertical aggregate of the door end.

Hereinafter, fittings according to an embodiment of the present invention will be described with reference to the drawings.
In the present embodiment, as shown in FIGS. 1 and 2, a fitting 1 provided with an entrance door 3 as a door body will be described as an example.

In the following description, for example, when the fitting 1 is attached to the skeleton of a building or the like when viewed from the indoor side, the vertical direction is the vertical direction, and the width of the closed entrance door 3 is the horizontal direction. , The indoor and outdoor directions are shown as the prospective directions. Further, each member and each part constituting the fitting 1 is in the vertical direction, the horizontal direction, the prospective direction, etc. in the state where the fitting 1 is attached to the skeleton and the entrance door 3 is closed even in the single state. The direction is specified by the direction and explained.

The fitting 1 of the present embodiment is framed in a rectangular shape and fixed to a skeleton (not shown), and has an opening frame 2 as a frame body forming an opening 1a that communicates indoors and outdoors, and an opening frame 2 via a hinge 4. It has an entrance door 3 that is rotatably supported and can close the opening 1a from the outdoor side. That is, in the present embodiment, the outdoor side to which the door tip moves when the entrance door 3 is opened corresponds to the open side, and the indoor side corresponds to the closed side opposite to the open side. Further, the closed entrance door 3 is maintained in a closed state in which a latch 3a provided near the center in the vertical direction on the door end side engages with a receiving member 5 provided in the opening frame 2.

The opening frame 2 has an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24, and the upper frame 21, the lower frame 22 and the vertical frames 23, 24 are formed from a portion on the indoor side of the center in the prospective direction. , Inwardly projecting portions 21a, 22a, 23a, 24a, which project inward in a rectangular shape, are provided, respectively. In the state of being attached to the skeleton, the inner protrusions 21a, 22a, 23a, 24a are arranged at the same position in the prospective direction to form the same surface, and hold the door stop member 20 made of soft synthetic resin on the outdoor side. doing. Here, the door stop member holding portion on the right side, that is, the inner protruding portion 24a of the vertical frame 24 on the door end side holds the door stop member with which the closed side surface of the door end comes into contact when the door body is closed. Corresponds to.

When the entrance door 3 attached to the opening frame 2 is closed, the door stop member 20 is brought into contact with the peripheral end portion of the indoor side surface of the entrance door 3 from the outdoor side. That is, the peripheral end portion of the indoor surface of the entrance door 3 faces the inner protrusions 21a, 22a, 23a, 24a and the door stop member 20 in the prospective direction.

The inner protruding portion 24a of the right vertical frame 24 located on the door end side protrudes from the prospective wall portion 24b along the prospective direction, and the prospective wall portion 24b is provided with a heated foaming material 25 that is heated and foams. ing. The heated foaming material 25 is provided on the inner peripheral surface side of the prospective wall portion 24b, that is, on the side facing the vertical frame 23 on the left side, and is left and right with the door stop member 20 provided on the outdoor side of the inner protruding portion 24a. It is provided at positions facing each other in the direction.

The entrance door 3 is attached to the vertical frame 23 located on the left side in FIG. 2 of the left and right vertical frames 23 and 24 via a hinge 4, and is attached to the vertical frame 24 located on the right side in FIG. A receiving member 5 that engages with the latch 3a and the lock 3b provided at the door end of the entrance door 3 is provided. In the following description, the left side in FIG. 2 will be the hanging side, and the right side in FIG. 2 will be the door end side.

The entrance door 3 is arranged on the inner peripheral side of the opening frame 2 in a closed state, and is a metal door frame 30 such as steel and a door frame 30 arranged in a rectangular shape along the four sides of the entrance door 3. A pair of metal surface materials 31 and 32 provided on the indoor side and the outdoor side of the door 3 facing each other, an aluminum edge material 33 provided on the door end side of the entrance door 3, a latch 3a and a lock 3b. It has a lock case 34 fixed to the door frame 30 via an edge member 33, and a metal reinforcing member 35 for reinforcing a portion where the lock case 34 is provided.

The door frame 30 includes an upper horizontal aggregate 301 provided at the upper part of the entrance door 3, a lower horizontal aggregate 302 provided at the lower part of the entrance door 3, and a vertical aggregate at the door end provided on the door end side of the entrance door 3. It has a 303 and a hanging vertical aggregate 304 provided on the hanging side of the entrance door 3, and each has a U-shape having the same cross section. More specifically, the upper horizontal aggregate 301, the lower horizontal aggregate 302, the door end vertical aggregate 303, and the hanging source vertical aggregate 304 each have a prospective wall portion 301a along the prospective direction with the entrance door 3 closed. , 302a, 303a, 304a, and the indoor extension pieces 301b, 302b, 303b, 304b and the outdoor extension extending from the indoor side edge and the outdoor side edge of the prospective wall portions 301a, 302a, 303a, 304a, respectively. It has pieces 301c, 302c, 303c, and 304c. Here, the prospective wall portions 301a, 302a, 303a, 304a correspond to the wall portions in the thickness direction along the thickness direction of the door body, and the indoor extension pieces 301b, 302b, 303b, 304b correspond to the obstruction side extension pieces. The outdoor extension pieces 301c, 302c, 303c, 304c correspond to the open side extension pieces.

The indoor extension pieces 301b and 302b of the upper lateral aggregate 301 and the lower lateral aggregate 302 and the outdoor extension pieces 301c and 302c extend to the side where the upper lateral aggregate 301 and the lower lateral aggregate 302 face each other. The indoor extension pieces 303b and 304b of the door tip vertical aggregate 303 and the hanging source vertical aggregate 304 and the outdoor extension pieces 303c and 304c are the door tip vertical aggregate 303 and the hanging source vertical aggregate. The 304 is extended to the side facing each other. Therefore, the upper horizontal aggregate 301, the lower horizontal aggregate 302, the door tip vertical aggregate 303, and the hanging base vertical aggregate 304 all have a U-shaped open side facing the center side of the door frame 30. Is located in.

As shown in FIG. 3, the indoor extension pieces 303b and 304b and the outdoor extension pieces 303c and 304c of the door end vertical aggregate 303 and the hanging base vertical aggregate 304 are notches cut at right angles to both ends, respectively. The portions 303d and 304d are provided, and the edges of the notches 303d and 304d and the ends of the indoor extension pieces 301b and 302b and the outdoor extension pieces 301c and 302c of the upper lateral aggregate 301 and the lower transverse aggregate 302 are provided. The edges of the above are opposed to each other and are abutted against each other and arranged in a rectangular shape.

As shown in FIG. 4, in the prospective wall portion 303a of the door tip vertical aggregate 303, two lock case insertion holes 303e into which two lock cases 34 provided in the door tip vertical aggregate 303 are inserted from the door end side. , And screw holes 303f are provided above and below the two lock case insertion holes 303e to screw the lock case 34.

As shown in FIGS. 3 to 6, the indoor extension piece 303b of the door end vertical aggregate 303 is formed with a notch 303d and an upper end extension piece 303g as an upper facing portion on the upper end side and a notch 303d. The lower end extension piece 303h as the lower facing portion on the lower end side and the lock case mounting extension piece 303i provided at the position where the two lock cases 34 are arranged are formed, and the other parts are extended indoors. The piece 303b is not provided.

In the present embodiment, as shown in FIGS. 5A and 5B, the upper end extension piece 303g, the lower end extension piece 303h, and the lock case mounting extension piece 303i from the prospective wall portion 303a. The extension length L1 and the extension length L2 of the outdoor extension piece 303c from the prospective wall portion 303a are formed equally. Further, as shown in FIG. 5C, the portion of the indoor extension piece 303b excluding the upper end extension piece 303g, the lower end extension piece 303h, and the lock case mounting extension piece 303i extends from the prospective wall portion 303a. There is no part to be put out. That is, in the present embodiment, the upper end extension piece 303g, the lower end extension piece 303h, and the lock case mounting extension piece 303i are located at the portion where the indoor extension piece 303b of the door end vertical aggregate 303 is provided. Except for the upper end extension piece 303g, the lower end extension piece 303h, and the lock case mounting extension piece 303i, the portion of the door end vertical aggregate 303 is the portion where the indoor extension piece 303b is not provided.

The lock case mounting extension piece 303i extends to the indoor side of two lock case insertion holes 303e provided in the prospective wall portion 303a of the door end vertical aggregate 303, and is above and below each lock case insertion hole 303e. It is provided in a wider range in the vertical direction than the distance between the screw holes 303f provided in.

The reinforcing member 35 has substantially the same width as the vertical width of the lock case mounting extension piece 303i, and has a U-shaped horizontal cross section. The reinforcing member 35 is arranged so that the U-shaped open side faces the door tip vertical aggregate 303 side, and when the door tip vertical aggregate 303 and the reinforcing member 35 are arranged so as to face each other, the door tip vertical The lock case 34 attached to the door end vertical aggregate 303 and inserted through the lock case insertion hole 303e is accommodated in the space formed by the aggregate 303 and the reinforcing member 35.

The peripheral ends of the pair of surface materials 31 and 32 are bent toward the sides facing each other along the outer periphery of the door frame 30, and the surface materials 31 and 32 and the door frame 30 are surrounded by the door frame 30. Together with the heat insulating material (not shown) and the reinforcing member 35 housed in the space, they are adhered from inside and outside the room.

According to the fitting 1 of the present embodiment, the door end vertical aggregate 303 of the entrance door 3 is a prospective wall except for the upper end extending piece 303g, the lower end extending piece 303h, and the lock case mounting extending piece 303i. Since the portion extending from the portion 303a is not provided, even if the entrance door 3 is heated by a fire or the like originating from the indoor side, the indoor extending piece 303b covers the entire length of the door end vertical aggregate 303. The door tip vertical aggregate 303 is less likely to be heated and the door tip vertical aggregate 303 is less likely to warp than when it is provided all over. Therefore, it is possible to provide the fitting 1 having the entrance door 3 which is less likely to warp even when heated.

Further, the outdoor extension piece 303c of the door tip vertical aggregate 303 is provided over the entire length of the door tip vertical aggregate 303, and the upper end extension piece 303g, the lower end extension piece 303h, and the lock are provided on the indoor side. A portion extending from the prospective wall portion 303a is not provided in a portion other than the case mounting extension piece 303i. That is, the area of the vertical aggregate 303 at the door end is smaller on the surface facing the room than on the surface facing the outside. Therefore, even when heated from both the outdoor side and the indoor side, it is possible to suppress the warp of the door end vertical aggregate 303 such that the distance between the entrance door 3 and the opening frame 2 is widened. ..

Further, the upper horizontal aggregate 301 and the lower horizontal aggregate 302, the door tip vertical aggregate 303, and the hanging source vertical aggregate 304 are the cutout portions 303d and 304d of the door tip vertical aggregate 303 and the hanging source vertical aggregate 304. Since the edges of the upper horizontal aggregate 301 and the end of the lower horizontal aggregate 302 are opposed to each other and abutted against each other, when the door end vertical aggregate 303 and the hanging vertical aggregate 304 are heated and stretched, they are extended. The upper horizontal aggregate 301 and the lower horizontal aggregate 302 suppress the extension of the door end vertical aggregate 303 and the hanging vertical aggregate 304. Therefore, it is possible to provide the fitting 1 having the entrance door 3 which is less likely to warp.

Further, since the cutouts 303d and 304d of the door tip vertical aggregate 303 and the hanging source vertical aggregate 304 are provided on the indoor side and the outdoor side, the door tip vertical aggregate 303 and the hanging source vertical aggregate 304 Elongation is suppressed on both the indoor side and the outdoor side. Therefore, it is possible to suppress twisting of the door end vertical aggregate 303 and the hanging vertical aggregate 304 due to heating.

In the above-described embodiment, the vertical aggregate 303 is extended from the prospective wall portion 303a to a portion other than the upper end extending piece 303g, the lower end extending piece 303h, and the lock case mounting extending piece 303i. The example in which the site is not provided has been described, but the present invention is not limited to this. For example, as shown in FIG. 7, the upper end extension piece 303g, the lower end extension piece 303h, and the lock case mounting extension piece 303i are shortened by a length shorter than the extension length L1 from the prospective wall portion 303a. The piece 303j may be provided.

That is, the indoor extension piece 303b of the door tip vertical aggregate 303 has a portion having different extension lengths from the prospective wall portion 303a. Also in this case, the door tip vertical aggregate 303 is less likely to be heated and the door tip vertical aggregate 303 is less likely to warp than when the indoor extension piece 303b is provided over the entire length of the door tip vertical aggregate 303. .. Therefore, it is possible to provide the fitting 1 having the entrance door 3 which is less likely to warp even when heated. At this time, if the extended tip 303k of the short extension piece 303j is configured to be located on the door end side of the edge 20a on the hanging side of the door stop member 20, the short extension piece 303j is a door stop member. Since it is covered with 20 and is not easily heated, it is possible to further suppress the warpage of the door end vertical aggregate 303.

Further, even if the extended tip 303k of the short extension piece 303j is configured to be located on the door tip side of the hanging side edge 24c of the inner protrusion 24a holding the door stop member 20. Good. In this case, since the short extension piece 303j is covered with the inner protruding portion 24a and is less likely to be heated, it is possible to further suppress the warpage of the door end vertical aggregate 303. That is, the extended tip 303k of the short extension piece 303j is at least one of the edge 20a on the hanging side of the door stop member 20 and the edge 24c on the hanging side of the inner protrusion 24a. It is desirable that it is configured to be located on the side.

In the above embodiment, when the door stop member 20 is a flammable member, or when cracks or the like occur even if it is nonflammable or flame retardant, the door stop member 20 disappears or the door stop member 20 disappears. There is a risk that the flame will penetrate the member 20. In the above embodiment, since the heated foaming material 25 that is heated and foams on the prospective wall portion 24b of the inner protruding portion 24a is provided at a position facing the door stop member 20 in the left-right direction, the door stop member 20 is provided. Even if it disappears or the flame penetrates the door stop member 20, the heated foaming material 25 is heated and foamed, so that the space between the entrance door 3 and the inner protrusion 24a is closed, which is short. Since the extension piece 303j is covered with the heated foaming material 25 and is difficult to be heated, it is possible to further suppress the warpage of the door end vertical aggregate 303. Further, since the heated foaming material 25 is heated and foamed, the space between the entrance door 3 and the vertical frame 24 on the right side is closed, so that it is possible to prevent the flame from penetrating to the outdoor side.

Further, in the above embodiment, an example in which the door end vertical aggregate 303 is provided with the upper end extending piece 303g, the lower end extending piece 303h, and the lock case mounting extending piece 303i on the indoor side has been described. The upper end extension piece, the lower end extension piece, and the lock case mounting extension piece may not necessarily be provided. In this case, for example, as shown in FIG. 8A, the door end vertical aggregate 303 is provided on the indoor side with a short extension piece 303j having a uniform extension length over the entire length, or FIG. As shown in 8 (b), it was decided not to provide the indoor extension piece 303b over the entire length, and the reinforcing member 35 having a short lock case mounting extension piece or a longer part on the indoor side due to the absence of the extension piece 35. You can use it.

In the above embodiment, the fitting 1 provided with the entrance door 3 provided between indoors and outdoors has been described as an example, but the present invention is not limited to this, and the fitting is provided with a door body provided between indoors and outdoors. It doesn't matter.

It should be noted that the above embodiment is for facilitating the understanding of the present invention, and is not for limiting and interpreting the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof, and the present invention includes an equivalent thereof.

1 Joinery, 1a opening, 2 opening frame, 3 entrance door, 20 door per unit,
20a Edge of door stop member on the hanging side, 24a Inner protrusion,
24c Suspension-side edge of medial protrusion, 301 superior transverse aggregate,
302 Lower horizontal aggregate, 303 Door tip vertical aggregate, 303a Expected wall,
303b indoor extension piece, 303c outdoor extension piece, 303d notch,
303g upper end extension piece, 303h lower end extension piece, 303i lock case mounting extension piece,
303j short extension piece, 303k tip of short extension piece,

Claims (7)

It has a frame body and a door body that is rotatably supported by the frame body and can close the opening.
The door body is equipped with a metal door tip vertical aggregate at the door end.
The vertical aggregate of the door is
A wall portion in the thickness direction having a lock case insertion hole into which the lock case is inserted and along the thickness direction of the door body,
The wall portion in the thickness direction has an open side extension piece provided on the open side where the door tip moves when the door body is opened and extended to the hanging source side.
On the closing side of the lock case insertion hole on the wall portion in the thickness direction opposite to the opening side, the closing side extending piece extending to the hanging source side is located above the lock case insertion hole. A fitting characterized in that it is provided from the position below the lock case insertion hole. The fitting according to claim 1,
Wherein the thickness direction wall portion, fitting said open side closed side of the opposite, characterized in that the front Symbol closed side extending piece has a section position not provided. The fitting according to claim 1 or 2.
The obstruction-side extension piece is a fitting characterized in that the extension pieces have portions having different extension lengths. A fitting according to any one of claims 1 to 3,
The fitting having a short extension piece having an extension length shorter than that of the open side extension piece. The fitting according to claim 4,
The frame body has a door stop member that the closed side surface of the door end comes into contact with when the door body is closed.
A fitting characterized in that the extended tip of the short extension piece is located on the door end side of the hanging source side edge of the door stop member. The fitting according to claim 4,
The frame body has a door stop member holding portion that holds the door stop member with which the closed side surface of the door end comes into contact with the door body when the door body is closed.
A fitting characterized in that the extended tip of the short extension piece is located on the door tip side of the hanging source side edge of the door stop member holding portion. The fitting according to any one of claims 2 to 6.
The door body has an upper transverse aggregate provided at the upper part and a lower transverse aggregate provided at the lower part.
At the upper end portion of the door tip vertical aggregate, an upper regulation portion is provided that engages with the upper horizontal aggregate and regulates the angle formed with the upper horizontal aggregate, and the lower end portion of the door tip vertical aggregate. Is provided with a lower regulation portion that engages with the lower transverse aggregate and regulates the angle formed with the lower transverse aggregate.

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