JP6422733B2 - Joinery - Google Patents

Description

  The present invention relates to a joinery, and more particularly to a joinery that opens and closes a shoji to an opening frame, such as a sliding window or a single sliding window.

  Conventionally, there is known a joinery in which a shoji is supported on an opening frame such as a sliding window. The opening frame that constitutes such a joinery is configured by a four-round frame including an upper frame, a lower frame, and a pair of vertical frames. Further, the shoji constituting the joinery is configured by holding a face material such as a glass plate on a frame formed by assembling an upper eave, a lower eave, and a pair of vertical eaves on four sides. There is a resin door.

  In such joinery, the door roller rolls on the rail provided on the lower frame, so that the shoji is opened and closed along the longitudinal direction of the lower frame to open and close the opening of the opening frame (for example, Patent Document 1).

JP 2006-118158 A

  By the way, in the joinery mentioned above, as shown in FIG. 10, each frame 110,120 grade | etc., Which comprises the opening frame 100 is supported by the anchor member 3 provided in the building frame 2, and each frame 110,120 grade | etc., There is one in which a space between the building frame 2 is filled with a filler 4 such as mortar. As described above, in the joinery in which the filler 4 is filled between the frames 110 and 120 of the opening frame 100 and the building frame 2, it is known that voids are generated in the space, particularly around the anchor member 3. Yes.

  For this reason, when the joinery is heated by a fire or the like, the lower frame 120 constituting the opening frame 100 is deformed so that the central portion in the longitudinal direction hangs down due to the weight of the shojis 200 and 300, and the shoji. The door carts 260 and 360 constituting the 200 and 300 also melt and disappear.

  As a result, the shojis 200 and 300 are in a state in which the door carts 260 and 360 disappear and the lower arm is placed on the rail of the lower frame 120, and are tilted according to the deformation of the lower frame 120, resulting in the opening frame. There will be a gap between 100 and the shoji 200,300. If a gap is generated between the opening frame 100 and the shojis 200 and 300, a flame or the like passes through the gap and spreads, and the above-mentioned joinery cannot be said to have sufficient fireproof performance.

  In view of the above circumstances, an object of the present invention is to provide a joinery that can suppress the tilting of the shoji when the lower frame of the opening frame is deformed and can improve the fire prevention performance.

In order to achieve the above object, a joinery according to the present invention includes an opening frame provided in a building opening, and a door roller that rolls a rail of a lower frame constituting the opening frame, and a longitudinal direction of the lower frame. In the fitting that opens and closes the opening of the opening frame by moving the shoji, the door is closed, and above the central portion in the longitudinal direction of the lower frame. A shoji which has a hoist facing the other shoji adjacent to each other, or a hoist facing the upper part of the longitudinal central portion of the lower frame and a closing member which closes a part of the opening is more fireproof than the door roller. comprising a spacer member formed of a material excellent in sex, the spacer member is intended to the center of gravity of the shoji disposed only in a location proximate to the stile, and disposed above said rail Yes, if the door van disappears A base portion disposed on the prospective surface of the lower arm of the shoji in a state of being placed on the rail and facing the upper end portion of the rail, and extending downward from an outdoor end portion of the base portion And a lower extending portion .

  According to the present invention, when the door roller melts and disappears due to heating by a fire or the like, the spacer member is placed on the rail of the lower frame, so that the vertical axis that opposes the other shoji or the like rather than the center of gravity of the shoji. The part close to the heel can be arranged relatively higher than the other vertical heel side than the center of gravity of the shoji. Therefore, even if the lower frame is deformed so as to hang down from the central portion in the longitudinal direction, the spacer member is placed on the rail, so that the shoji can be prevented from tilting, and a gap is generated between the opening frame and the shoji. That can be suppressed.

Moreover, the joinery which concerns on this invention is equipped with the opening frame provided in the building opening, and the doorwheel which rolls the rail of the lower frame which comprises the said opening frame, and is movable along the longitudinal direction of the said lower frame In a fitting that includes a shoji and opens and closes the opening of the opening frame by moving the shoji, the other shoji disposed above a central portion in the longitudinal direction of the lower frame with the opening closed The shoji which has an upright spatula is provided with a spacer member made of a material superior in fire resistance than the door wheel, and the spacer member is disposed only at a location closer to the downstand than the center of gravity of the shoji. In addition, it is disposed above the rail, and is placed on the rail when the door vane disappears, and the lower arm of the shoji is expected to face the upper end of the rail. A base disposed on a surface, and the base Characterized in that a downward extending portion extending downward from the outdoor-side end portion.

  According to the present invention, when the door roller melts and disappears by being heated in a fire or the like, the spacer member is placed on the rail of the lower frame so that it faces the other shoji rather than the center of gravity of the shoji. The position close to the center of the shoji can be positioned higher than the other vertical side than the center of gravity of the shoji. Therefore, even if the lower frame is deformed so as to hang down from the central portion in the longitudinal direction, the spacer member is placed on the rail, so that the shoji can be prevented from tilting, and a gap is generated between the opening frame and the shoji. That can be suppressed.

The present invention, in the above-mentioned fittings, the shoji is characterized top rail, be by holding the face material to rail member configured to set four peripheries rail the bottom rail and a pair of left and right stile.

  According to the present invention, when the door roller is melted and disappears by being heated by a fire or the like, the spacer member can be reliably placed on the rail of the lower frame.

  Moreover, the present invention is characterized in that, in the joinery, one of the vertical fences of the shoji is a summoning fence, and the other of the vertical fences is a door-end fence that contacts the vertical frame constituting the opening frame. To do.

  According to the present invention, when the door roller melts and disappears due to heating by a fire or the like, the spacer member is placed on the rail of the lower frame, so that the vertical axis that opposes the other shoji or the like rather than the center of gravity of the shoji. It is possible to place the part close to the heel relatively higher than the center of gravity of the shoji and the side of the door. Therefore, even if the lower frame is deformed so as to hang down from the central portion in the longitudinal direction, the spacer member is placed on the rail, so that the shoji can be prevented from tilting, and a gap is generated between the opening frame and the shoji. That can be suppressed.

  According to the present invention, even when the lower frame of the opening frame is deformed, it is possible to suppress the tilting of the shoji and improve the fire performance.

FIG. 1 is an external view showing a joinery that is an embodiment of the present invention from the indoor side. FIG. 2 is a cross-sectional view of a joinery that is an embodiment of the present invention. FIG. 3 is a longitudinal sectional view of a joinery that is an embodiment of the present invention. 4 is an enlarged longitudinal sectional view showing the main part shown in FIG. FIG. 5A is a left side view of the spacer member. FIG. 5B is a diagram of the spacer member viewed from the indoor side. FIG. 5C is a bottom view of the spacer member. FIG. 6 is an enlarged longitudinal sectional view showing a main part of the joinery that is an embodiment of the present invention. FIG. 7 is an external view showing a case where the joinery according to the embodiment of the present invention is heated by a fire or the like. FIG. 8 is an external view showing a modified example of the joinery that is an embodiment of the present invention from the indoor side. FIG. 9 is an external view showing another modified example of the joinery that is the embodiment of the present invention from the indoor side. FIG. 10 is a longitudinal sectional view showing a conventional joinery.

  Hereinafter, preferred embodiments of a joinery according to the present invention will be described in detail with reference to the accompanying drawings.

  FIGS. 1 to 3 each show a joinery that is an embodiment of the present invention. FIG. 1 is an external view from the indoor side, FIG. 2 is a transverse sectional view, and FIG. 3 is a longitudinal sectional view. The joinery illustrated here is a so-called sliding window, and includes an opening frame 10 and a plurality of (two in the illustrated example) shojis 20 and 30.

  The opening frame 10 is formed in a rectangular shape by four-frames an upper frame 11, a lower frame 12, and a pair of left and right vertical frames 13 and 14, and has a rectangular opening 15. Each of the frames 11, 12, 13, and 14 of the opening frame 10 is configured to have a predetermined cross-sectional shape by an extruded shape of aluminum or aluminum alloy. Here, the upper frame 11 is provided with rails 11a extending along the longitudinal direction, and the lower frame 12 is provided with rails 12b extending along the longitudinal direction.

  Although the opening frame 10 is not clearly shown in FIGS. 1 to 3, each frame 11, 12, 13, 14 is supported by an anchor member (3) provided in the building frame 1 as in the conventional example shown in FIG. 10. In addition, the space between the frames 11, 12, 13, 14 and the building case 1 is filled with a filler (4) such as mortar and supported by the building case 1.

  The inner shoji (hereinafter also referred to as inner shoji) 20 has an upper face 21, a lower face 22, and a pair of left and right vertical eaves 23, 24 that are assembled into a rectangular shape by a four-sided braiding, and a face material 25 is provided inside the box. Is retained. Here, each of the flanges 21, 22, 23, and 24 of the inner shoji 20 is configured to have a predetermined cross-sectional shape by an extruded shape of aluminum or aluminum alloy.

  The inner shoji 20 has a door wheel 26. The door wheel 26 is made of a resin made of a resin material such as plastic, and is provided on the lower arm 22. Although not shown in the drawing, the door pulley 26 is provided on the lower arm 22 so as to be rotatable around the central axis of the shaft portion extending along the prospective direction of the lower arm 22, The end surface protrudes downward from a notch portion (not shown) of the lower prospective surface 22 a of the lower rod 22. Such a door wheel 26 is placed on the upper end surface of the rail 12b so that the outer end surface of the portion projecting downward from the cutout portion can roll. In addition, an insertion portion 21a extending along the longitudinal direction is formed on the upper collar 21 of the inner shoji 20, and the rail 11a of the upper frame 11 is inserted into the insertion portion 21a.

  The outer shoji (hereinafter also referred to as a shoji) 30 has an upper face 31, a lower face 32, and a pair of left and right longitudinal bars 33, 34 that are assembled into a rectangular shape by surrounding the upper and lower faces 32, 34. Is retained. Here, each ridge 31, 32, 33, 34 of the shoji 30 is configured to have a predetermined cross-sectional shape by an extruded shape of aluminum or aluminum alloy.

  The external shoji 30 has a door wheel 36. The door wheel 36 is made of a resin made of a resin material such as plastic, and is provided on the lower arm 32. Although not shown in the drawing, the door pulley 36 is provided on the lower arm 32 so as to be rotatable around the central axis of the shaft portion extending along the prospective direction of the lower arm 32, and a part of the outer wheel 36 is outside. The end surface protrudes downward from a notch portion (not shown) of the lower prospective surface 32a of the lower rod 32. Such a door wheel 36 is mounted on the upper end surface of the rail 12b so that the outer end surface of the portion protruding downward from the cutout portion can roll. Note that an insertion portion 31a extending in the longitudinal direction is formed on the upper collar 31 of the outer shoji 30. The rail 11a of the upper frame 11 is inserted into the insertion portion 31a.

  The sliding doors 20 and 30 are opened and closed along the longitudinal direction of the lower frame 12, that is, in the left-right direction, as the door wheels 26 and 36 roll on the rail 12b.

  Then, a right downspout (hereinafter, also referred to as a right downspout) 24 of the inner shoji 20 abuts on a right side vertical frame (hereinafter also referred to as a right downspread) 14, and a left downspout (hereinafter referred to as a right shovel 30) , Also referred to as the left vertical fold) 33 and the left vertical fold (hereinafter also referred to as the left vertical fold) 23 of the inner shoji 20 and the outside A right vertical rod (hereinafter also referred to as a right vertical rod) 34 of the shoji 30 is opposed to each other above the central portion 12a in the longitudinal direction (left-right direction) of the lower frame 12 so that the opening 15 is closed. Each dimension is set. In such shojis 20 and 30, the right downspout 24 and the left downspout 33 serve as door toe, and the left downspout 23 and the right downspout 34 serve as summons.

  4 is an enlarged longitudinal sectional view showing the main part shown in FIG. As shown in FIG. 4, the shojis 20 and 30 include a spacer member 40. The spacer member 40 is made of a material superior in fire resistance to resin door wheels 26 and 36 such as aluminum, iron, and stainless steel. As shown in FIGS. 41 and a lower extension 42.

  When viewed from above or below, the base 41 is a portion having a rectangular shape in which the left-right direction is the longitudinal direction rather than the indoor / outdoor direction (the prospective direction of the shoji 20, 30), and is more roomable than the central portion 411. The outer end portion 412 and the indoor side end portion 413 are bent so as to be positioned slightly upward. A mounting through hole 41 a is formed in the central portion 411 of the base 41. The downward extending portion 42 is a portion that extends downward from the outdoor side end portion 412 of the base portion 41.

  As shown in FIGS. 1 and 4, the spacer member 40 having such a configuration has a summoning ridge (left vertical fold) on the lower prospective surfaces 22 a and 32 a of the shoji 20 and 30 rather than the center of gravity of the shoji 20 and 30. 23 and the right vertical rod 34) are attached by screwing the tip end portions of the mounting screws 50 passing through the mounting through holes 41a into the lower prospective surfaces 22a and 32a. In this case, the base portion 41 of the spacer member 40 is opposed to the upper end portion with a predetermined distance from the upper end portion of the rail 12b. That is, the spacer member 40 allows the door rollers 26 and 36 to roll on the rail 12b because the base portion 41 is separated from the upper end portion of the rail 12b. Here, the height of the downward projection of the base 41 from the lower prospective surfaces 22a and 32a of the spacer member 40 is determined by the size, strength, etc. of the joinery to which the spacer member 40 is applied. If the doors 26 and 36 are placed on the rails 12b when the doors 26 and 36 disappear while allowing the doors 26 and 36 to roll on the rails 12b, the size is particularly limited. It is not something.

  In the joinery having the above configuration, the resin doors 26 and 36 melt and disappear when heated by a fire or the like. In addition, since there is a gap in the filling portion of the filler (4) such as mortar used to support the opening frame 10, each of the frames 11, 12, 13,. 14 is easily deformed. In particular, the lower frame 12 is deformed so that the central portion 12a in the longitudinal direction hangs down because the weight of the shoji 20, 30 acts on the lower frame 12 and the left and right ends are connected to the vertical frames 13, 14. become.

  In this way, when the door wheels 26 and 36 disappear and the lower frame 12 is deformed so that the central portion 12a in the longitudinal direction hangs down, the shojis 20 and 30 have the lower prospective surfaces 22a and 32a placed on the rail 12b. However, in the portion where the spacer member 40 is disposed, the spacer member 40 is placed on the rail 12b as shown in FIG. 6 shows a state in which the spacer member 40 provided on the outer shoji 30 is placed on the rail 12b of the lower frame 12, but the spacer member 40 provided on the inner shroud 20 is also on the rail 12b of the lower frame 12. Placed on. Here, the spacer member 40 protrudes downward from the lower prospective surfaces 22a and 32a, and is provided at a location close to the summoning ridge (left vertical ridge 23 and right vertical ridge 34) from the center of gravity of the shojis 20 and 30. Therefore, the location where the spacer member 40 is placed on the rail 12b is relatively higher than the location where the lower prospective surfaces 22a, 32a are placed on the rail 12b. As a result, as shown in FIG. Even if the central portion 12a in the longitudinal direction of the 12 hangs down, the shoji 20, 30 can be prevented from being inclined. Thereby, it can suppress that a clearance gap produces between the opening frame 10 and the shoji 20, 30, it can control that a flame etc. pass through a clearance gap, and can make fireproof performance favorable.

  Therefore, according to the joinery which is this Embodiment, even when the lower frame 12 of the opening frame 10 deform | transforms, it can suppress that the shoji 20 and 30 incline, and can make fireproof performance favorable.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made.

  In the embodiment described above, the sliding window having the two shojis 20 and 30 has been exemplified, but in the present invention, it can be applied to a single sliding window.

  In the above-described embodiment, the sliding window having the two shojis 20 and 30 has been exemplified. However, in the present invention, as described below, the sliding window having three or more shojis is also applied. be able to.

  FIG. 8 is an external view showing a modified example of the joinery that is an embodiment of the present invention from the indoor side. In FIG. 8, components having the same configuration as those of the above-described embodiment are denoted by the same reference numerals.

  As shown in FIG. 8, the opening frame 10 is provided with a plurality (four in the illustrated example) of shojis 51, 52, 53, and 54. These shojis 51 and the like, like the shojis 20 and 30 described above, are formed in a rectangular shape formed by assembling the upper eaves 51a, etc., the lower eaves 51b, etc. and the pair of left and right vertical eaves 51c, 51d, etc. In this case, the face material 51e is held. And the opening 15 of the opening frame 10 can be opened and closed by these shoji 51 etc. moving.

  In such a joinery, the shojis 52 and 53 (hereinafter, also referred to as central shojis) facing the vertical joists 52c and 53c above the central portion 12a in the longitudinal direction of the lower frame 12 are respectively provided with lower joists 52b and 53b. A spacer member 40 is provided at a position closer to the vertical rods 52c, 52d, 53c, 53d than the center of gravity of the central shoji 52, 53 in FIG. In the state in which the shoji 51 located on the leftmost side is in the state where the opening 15 is closed, the right-hand side saddle 51d is opposed to the vertical hand 52c of the central-side shoji 52. Also in the shoji 51, the spacer member 40 is provided at a location closer to the vertical rod 51d than the center of gravity of the shoji 51. Further, in the state where the shoji 54 located on the rightmost side is in the state in which the opening 15 is closed, the left side vertical hook 54c faces the vertical hook 53d of the central side shoji 53. Also in this shoji 54, the spacer member 40 is provided at a location closer to the vertical rod 54c than the center of gravity of the shoji 54.

  In such a joinery, since the number of the shoji 51 etc. is larger than the joinery of embodiment mentioned above, the extension length of the longitudinal direction of the upper frame 11 and the lower frame 12 becomes large rather than this joinery. Therefore, when heated by a fire or the like, the central portion 12a of the lower frame 12 hangs more than the joinery of the above-described embodiment. Therefore, among the spacer members 40 provided on the central shoji 52 (53), the spacer member 40 adjacent to the vertical chisel 52d (53c) facing the vertical chisel 53c (52d) of the adjacent central shoji 53 (52). Is preferably attached to the lower prospective surface of the central shoji 52, 53 so as to protrude below the other spacer members 40.

  According to such a configuration, when the door roller melts and disappears by being heated by a fire or the like, the spacer member 40 is placed on the rail of the lower frame 12, so that the central shoji 52 (53) Arrange the location near the vertical rod 52d (53c) facing the other central shoji 53 (52) relatively higher than the location near the vertical rod 52c (53d) facing the other shoji 51 etc. In addition, in the case of the shoji 51 other than the central shoji 52 and 53, the position near the chisel 51d and 54c facing the central shoji 52 and 53 is close to the chisel 51c and 54d facing the vertical frames 13 and 14. It can arrange | position relatively higher than the place to do. Therefore, even if the lower frame 12 is deformed so as to hang down from the central portion 12a in the longitudinal direction, the spacer member 40 is placed on the rail, so that the shoji 51 and the like can be prevented from being inclined, and the opening frame 10 and the shoji 51 It is possible to suppress the occurrence of a gap between them. Therefore, even when the lower frame 12 of the opening frame 10 is deformed, it is possible to suppress the tilting of the shoji 51 and the like and to improve the fire prevention performance.

  In addition, although FIG. 8 demonstrated the example which provided the spacer member 40 not only in the central side shoji 52 and 53 but the shoji 51 located in the leftmost and the shoji 54 located in the rightmost, this invention In the state in which the opening of the opening frame is closed, the shoji having a vertical saddle facing the other shoji (one central shoji in FIG. 8) adjacent to the upper portion of the lower frame in the longitudinal direction (see FIG. 8). In the other central side shoji (8), a spacer member may be provided only at a location closer to the vertical spatula than the center of gravity of the shoji. This also prevents a gap from being generated between the opening frame and the shoji by placing the spacer member on the rail even when the lower frame is deformed so as to hang down from the central portion in the longitudinal direction. Further, even when the lower frame of the opening frame is deformed, it is possible to suppress the tilting of the shoji and to improve the fire prevention performance.

  FIG. 9 is an external view showing another modified example of the joinery that is the embodiment of the present invention from the indoor side. In FIG. 9, the same reference numerals are assigned to the same components as those in the above-described embodiment.

  As shown in FIG. 9, the opening frame 10 is provided with a plurality (three in the illustrated example) of shojis 61, 62, and 63. Among these shoji 61 and the like, the shoji 63 located on the rightmost side is fixed to the opening frame 10. The shojis 61 and 62 excluding the shoji 63 are formed in a rectangular shape by assembling the upper eaves 61a, etc., the lower eaves 61b, etc. and the pair of left and right vertical eaves 61c, 61d, etc. in the same manner as the above-mentioned shojis 20, 30 The face material 61e and the like are held inside the housing. And the opening 15 of the opening frame 10 can be opened and closed by these shoji 61 etc. moving.

  In such a fitting, a shoji 62 (hereinafter also referred to as a central shoji) 62 disposed above the longitudinal central portion 12a of the lower frame 12 with the opening 15 closed is provided with the central shoji 62 on the lower rod 62b. A spacer member 40 is provided at a position closer to the vertical rods 62c and 62d than the center of gravity. Further, in the state in which the shoji 61 located on the leftmost side is in the state in which the opening 15 is closed, the right side hoist 61d faces the hoist 62c of the central shoji 62. Also in the shoji 61, the spacer member 40 is provided at a location closer to the vertical rod 61d than the center of gravity of the shoji 61.

  According to such a configuration, when the door roller melts and disappears due to heating by a fire or the like, the spacer member 40 is placed on the rail of the lower frame 12, so that the central shoji 62 has each vertical rod 62 c. , 62d can be made to have the same height level, and in the shoji 61 located on the left side, the place near the chisel 61d facing the central shoji 62 is taken as the chisel 61c facing the vertical frame 13. It can arrange | position relatively higher than the location which adjoins. Therefore, even if the lower frame 12 is deformed so as to hang down from the central portion 12a in the longitudinal direction, the spacer member 40 is placed on the rail, so that the shoji 61 and 62 can be prevented from being inclined, and the opening frame 10 and the shoji It can suppress that a clearance gap produces between 61 and 62. FIG. Therefore, even when the lower frame 12 of the opening frame 10 is deformed, it is possible to suppress the tilting of the shoji 61 and 62 and to improve the fire performance.

  In addition, in FIG. 9, although the example which provided the spacer member 40 not only in the leftmost shoji 61 but also in the central shoji 62 was explained, in the present invention, with the opening of the opening frame closed, In the shoji (the shoji located in the leftmost in FIG. 9) having a vertical saddle facing the shoji (the central shoji in FIG. 9) disposed above the central portion in the longitudinal direction of the lower frame, the center of gravity of the shoji A spacer member may be provided only at a location close to the vertical shaft.

  8 and 9 exemplify a joinery having four shojis and a joinery having three shojis, the number of shojis is not particularly limited in the present invention. As for the spacer member, when the lower frame of the opening frame is deformed by being heated by a fire or the like, the shoji is not inclined toward the central portion in the longitudinal direction of the lower frame along the lower frame. Therefore, a plurality of spacer members may be provided for the shoji.

  In the above-described embodiment, the spacer member 40 is provided on the lower prospective surfaces 22a and 32a of the lower heel so as to face the rail 12b. However, in the present invention, the spacer member is a rail of the lower frame. As long as it is disposed at a location above the rail so as to face, it is not limited to the lower prospective surface, and the disposed portion is not particularly limited.

  DESCRIPTION OF SYMBOLS 10 Opening frame, 12 Lower frame, 12a Center part, 12b Rail, 15 Opening, 20 Inner shoji, 21 Upper arm, 22 Lower arm, 22a Lower prospective surface, 23 Warp, 24 Wart, 25 Face material, 26 , 30 Inner shovel, 31 Upper collar, 32 Lower collar, 32a Lower prospective surface, 33 Vertical collar, 34 Vertical collar, 35 Face material, 36 Door, 40 Spacer member, 41 Base, 42 Lower extension, 50 Mounting screw

Claims (4)

An opening frame provided in the building opening;
A door roller that rolls on the rail of the lower frame that constitutes the opening frame, and a shoji that is movable along the longitudinal direction of the lower frame,
In the joinery that opens and closes the opening of the opening frame by moving the shoji,
In the state in which the opening is closed, a longitudinal saddle facing the other shoji that is adjacent above the central portion in the longitudinal direction of the lower frame, or a longitudinal direction of the closing member that closes a part of the opening and the lower frame The shoji which has a vertical fence facing the upper part of the central part of the door comprises a spacer member made of a material superior in fire resistance than the door wheel,
The spacer member is disposed only at a location closer to the downboard than the center of gravity of the shoji, and is disposed above the rail ,
In a mode that is placed on the rail when the door wheel disappears, in a state facing the upper end of the rail, a base portion disposed on the prospective surface of the lower arm of the shoji,
A downwardly extending portion extending downward from an outdoor side end portion of the base portion;
Fittings, characterized in that it comprises a. An opening frame provided in the building opening;
A door roller that rolls on the rail of the lower frame that constitutes the opening frame, and a shoji that is movable along the longitudinal direction of the lower frame,
In the joinery that opens and closes the opening of the opening frame by moving the shoji,
The shoji which has the vertical saddle facing the other shoji placed above the central portion in the longitudinal direction of the lower frame in a state where the opening is closed was formed of a material superior in fire resistance than the door wheel. A spacer member;
The spacer member is disposed only at a location closer to the downboard than the center of gravity of the shoji, and is disposed above the rail ,
In a mode that is placed on the rail when the door wheel disappears, in a state facing the upper end of the rail, a base portion disposed on the prospective surface of the lower arm of the shoji,
A downwardly extending portion extending downward from an outdoor side end portion of the base portion;
Fittings, characterized in that it comprises a. The Shoji, top rail, fittings according to claim 1 or claim 2, characterized in that by retaining the face material in rail member configured to set four peripheries rail the bottom rail and a pair of left and right stile .   4. The joinery according to claim 3, wherein one of the vertical fences of the shoji is a summoning fence, and the other of the vertical fences is a door-end fence that comes into contact with the vertical frame constituting the opening frame.

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