JP6872876B2 - Joinery - Google Patents

Description

The present invention relates to a fitting in which a shoji is slidably supported by an opening frame.

Some fittings used for windows of buildings use shoji screens in which a glass plate is held by a frame made of a metal frame material such as aluminum. In addition, there is also a configuration using a shoji screen in which a glass plate is held by a frame body in which a resin frame material such as vinyl chloride resin is attached to the indoor side of a metal frame material such as aluminum. As a fitting of this kind, for example, there is a sliding window in which a shoji is slidably arranged by an opening frame.

Patent Document 1 discloses a fitting provided with a shoji that holds a glass plate with a stile body in which a resin stile material is mounted on the indoor side of a metal stile material. In this configuration, reinforcing materials are inserted into the hollow portions of the upper stile, the lower stile, the door end stile, and the combination stile.

Japanese Patent No. 4072421

Generally, the reinforcing material as described above is made of a metal such as steel or stainless steel. That is, in the configuration of Patent Document 1, since the reinforcing material is inserted into the hollow portions of all the upper, lower, left and right stile materials, it is possible to secure the fire resistance when the fitting receives a flame such as a fire or heat. However, in this configuration, since the reinforcing material is inserted into all the frame materials, there is a problem that the weight of the shoji is increased, and the cost and man-hours for adding the reinforcing material are further increased.

The present invention has been made in consideration of the above-mentioned problems of the prior art, and an object of the present invention is to provide a fitting capable of ensuring fire protection performance while suppressing an increase in cost and weight.

The fitting according to the present invention is a fitting in which at least one or more sliding doors holding a face material by a stile having an upper stile, a lower stile, a door tip stile, and a combination stile are slidably supported by an opening frame. The combination stile is provided with a first hollow portion into which a reinforcing material is inserted, and the door end stile has at least the thickness of the outdoor wall portion forming the outdoor side finding surface of the combination stile. It is characterized in that a second hollow portion thicker than the plate thickness of the wall portion forming the first hollow portion is provided.

According to such a configuration, since the fitting has a reinforcing material inserted in the first hollow portion of the mating stile, it is possible to secure the fireproof strength in the mating stile without support by the opening frame. Further, in the fitting, at least the plate thickness of the outdoor wall portion of the wall portion forming the second hollow portion of the door end stile is set to be thicker than the plate thickness of the wall portion forming the hollow portion of the combined stile. That is, the door end stile has a thick wall structure. As a result, the door end stile can secure sufficient fire resistance without inserting a reinforcing material in the hollow portion or by inserting a minimum reinforcing material that is lightweight and thin. Therefore, in the fitting, it is possible to secure the fire protection performance while suppressing the increase in cost and weight of the frame and the shoji using the frame.

In the fitting according to the present invention, in the second hollow portion of the door end stile, the thickness of the opening side wall portion forming a part of the opening groove for holding the face material is the same as that of the first hollow portion of the combined stile. The structure may be thicker than the plate thickness of the wall portion to be formed. Then, the fitting can further increase the fire resistance against the holding of the face material in the door end stile.

In the fitting according to the present invention, the reinforcing material may not be inserted into the second hollow portion of the door end stile. Then, the cost and weight of the frame and the shoji can be further reduced.

In the fitting according to the present invention, in the upper stile, at least the plate thickness of the outdoor wall portion forming the outdoor side finding surface is thicker than the plate thickness of the wall portion forming the first hollow portion of the combined stile. 3 Hollow portions are provided, and the thickness of the outdoor wall portion forming at least the outdoor side finding surface of the lower stile is thicker than the plate thickness of the wall portion forming the first hollow portion of the combined stile. 4 The structure may be provided with a hollow portion. Then, the fitting has a thick structure for the upper stile and the lower stile. As a result, the upper stile and the lower stile can secure sufficient fire resistance without inserting a reinforcing material into the third and fourth hollow portions, or by inserting a minimum reinforcing material that is lightweight and thin.

In the fitting according to the present invention, the reinforcing material may not be inserted into the third hollow portion of the upper stile and the fourth hollow portion of the lower stile. Then, the cost and weight of the frame and the shoji can be further reduced.

In the fitting according to the present invention, the combination stile is provided with a fifth hollow portion alongside the indoor side of the first hollow portion, and one wall portion of the first hollow portion holds the face material. An opening groove may be formed, and a reinforcing material may not be inserted into the fifth hollow portion. Then, the fitting can secure sufficient fire resistance in the first hollow portion on the outdoor side forming the opening groove for holding the face material. On the other hand, in the fitting, the strength, cost, and weight can be balanced by not inserting a reinforcing material into the fifth hollow portion on the indoor side, which has little influence on the fire resistance and the like.

In the fitting according to the present invention, the upper frame of the opening frame may have a hollow portion on the opposite side of the inner prospective surface to be the shoji side. Then, the fitting can mitigate the influence of flame, heat or solar radiation in the hollow portion, and can prevent damage to the inner prospective surface side of the upper frame that supports the shoji.

In the fitting according to the present invention, the upper frame is formed with a rail for guiding the shoji projecting on the inner prospective surface, and the inside of the hollow portion is formed by a plurality of support walls provided on an extension line of the rail. It may be a structure partitioned by the space of. Then, the fitting can suppress the heat expansion of the shoji in the event of a fire or the like by the support wall. As a result, a gap is less likely to occur between the upper frame and the shoji, and the fire resistance is further improved.

The fitting according to the present invention is a fitting in which at least one or more sliding doors holding a face material by a stile having an upper stile, a lower stile, a door tip stile, and a combination stile are slidably supported by an opening frame. The combination stile is provided with a hollow portion into which a reinforcing material is inserted, and the upper stile has at least the thickness of the outdoor wall portion forming the outdoor side finding surface, and the hollow portion of the combination stile is formed. It is characterized in that a hollow portion thicker than the plate thickness of the wall portion to be formed is provided. According to such a configuration, the upper stile can secure sufficient fire resistance without inserting a reinforcing material in the hollow portion or by inserting a minimum reinforcing material that is lightweight and thin. Therefore, in the fitting, it is possible to secure the fire protection performance while suppressing the increase in cost and weight of the frame and the shoji using the frame.

The fitting according to the present invention is a fitting in which at least one or more sliding doors holding a face material by a stile having an upper stile, a lower stile, a door tip stile, and a combination stile are slidably supported by an opening frame. The combination stile is provided with a hollow portion into which a reinforcing material is inserted, and the lower stile has at least the thickness of the outdoor wall portion forming the outdoor side finding surface, so that the hollow portion of the combination stile is formed. It is characterized in that a hollow portion thicker than the plate thickness of the wall portion to be formed is provided. According to such a configuration, the lower stile can secure sufficient fireproof strength without inserting a reinforcing material in the hollow portion or by inserting a light and thin minimum reinforcing material. Therefore, in the fitting, it is possible to secure the fire protection performance while suppressing the increase in cost and weight of the frame and the shoji using the frame.

According to the present invention, it is possible to secure fire protection performance while suppressing an increase in cost and weight of a frame and a shoji using the frame.

FIG. 1 is a vertical sectional view of a fitting according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the fitting shown in FIG. FIG. 3 is a configuration diagram of an upper frame and a lower frame, FIG. 3 (A) is an enlarged vertical cross-sectional view of the upper frame and the periphery of the upper frame, and FIG. 3 (B) is a lower frame and a lower frame. It is a vertical cross-sectional view which enlarged the periphery of. FIG. 4 is a block diagram of the door tip stile and the combination stile, FIG. 4 (A) is an enlarged cross-sectional view of the vertical frame and the periphery of the door tip stile, and FIG. 4 (B) is each shoji screen. It is an enlarged cross-sectional view of the periphery of the sash.

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

FIG. 1 is a vertical sectional view of a fitting 10 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the fitting 10 shown in FIG.

As shown in FIGS. 1 and 2, the fitting 10 has an opening frame 12 fixed to the opening of the building frame and a pair of left and right shoji screens 14 and 15 slidably arranged in the opening 13 of the opening frame 12. And. In the present embodiment, a sliding window fitting 10 capable of opening and closing the opening 13 inside the opening frame 12 by sliding the shoji screens 14 and 15 is illustrated. One of the shoji screens 14 and 15 may be fitted into the opening frame 12 and only the other may be a sliding window. The number of shoji screens installed can be changed as appropriate.

The opening frame 12 is formed by forming a rectangular opening by framing the upper frame 12a, the lower frame 12b, and the left and right vertical frames 12c and 12d in four directions. The opening frame 12 is a frame body having a composite structure in which a metal frame material 16 arranged on the outdoor side and a resin frame material 18 arranged on the indoor side are combined. The metal frame member 16 is an extruded profile of a metal such as aluminum. The resin frame material 18 is an extruded shape material of a resin such as vinyl chloride resin (PVC).

In the present application, the prospective direction refers to the indoor / outdoor direction of the fitting 10 (the direction indicated by the arrow Z in the drawing), and the prospective plane means a plane extending along the prospective direction. The finding direction is a direction orthogonal to the expected direction, and in the case of vertical frames 12c, 12d, etc., which are long in the vertical direction, the left and right directions (directions indicated by arrows X in the figure) perpendicular to the longitudinal direction are used. In the case of the upper frame 12a, the lower frame 12b, etc., which are long in the direction, it means the vertical direction (direction indicated by the arrow Y in the drawing) orthogonal to the longitudinal direction thereof. The finding surface is a surface along the finding direction. The inside (inner circumference) of the opening frame 12 refers to the portion on the opening 13 side in which the shoji 14 is arranged, and the outside (outer circumference) of the opening frame 12 refers to the portion on the side opposite to the opening 13 side.

The upper frame 12a is obtained by mounting the resin upper frame 18a of the resin frame material 18 on the metal upper frame 16a of the metal frame material 16. The lower frame 12b is obtained by mounting the resin lower frame 18b of the resin frame material 18 and the resin lower frame cover 18c on the metal lower frame 16b of the metal frame material 16. The vertical frames 12c and 12d are formed by mounting the resin vertical frames 18c and 18d of the resin frame material 18 on the metal vertical frames 16c and 16d of the metal frame material 16, respectively. The opening frame 12 is fixed to the building frame using a fixture 20 such as a nail or a screw.

As shown in FIG. 1, rails 22 and 23 are formed so as to protrude in the prospective direction on the inner prospective surface 21 of the upper frame 12a. The rail 22 is a guide strip that slidably guides the outdoor shoji 14 that serves as an external shoji. The rail 23 is a guide strip that slidably guides the shoji 15 on the indoor side, which is an internal shoji. The rails 22 and 23 extend over the entire length of the upper frame 12a in the longitudinal direction and project inward. A windbreak plate 24 for maintaining airtightness inside and outside the room is provided at a position between the rails 22 and 23 and corresponding to the combined portion of the shoji screens 14 and 15. A heat-expandable member 25 is provided on the inner prospective surface 21 at a position on the side of the windbreak plate 24 in the finding direction. The heat-expandable member 25 is, for example, a heat-foaming material such as graphite that foams and expands when heated.

The metal upper frame 16a has a hollow portion 26 on the opposite side of the inner prospective surface 21. The hollow portion 26 is provided so as to extend in the prospective direction from the outdoor end portion of the metal upper frame 16a to the vicinity of the rail 23. The inside of the hollow portion 26 is divided into two chambers by a support column wall 26a provided on an extension line of the rail 22 on the outdoor side. That is, the columns wall 26a and the rail 22 have the same positions in the prospective direction.

Rails 28 and 29 are formed so as to protrude in the prospective direction on the inner prospective surface of the lower frame 12b. The rail 28 is a guide strip that guides the shoji 14 in a slidable manner. The rail 29 is a guide strip that guides the shoji 15 in a slidable manner. The rails 28 and 29 extend over the entire length of the lower frame 12b in the longitudinal direction and project inward. The lower frame 12b is also provided with a windbreak plate 24 and a heat-expandable member 25.

A hollow portion 30 is provided in the metal lower frame 16b of the lower frame 12b. The hollow portion 30 is provided so as to extend in the prospective direction from the outdoor end of the metal lower frame 16b to the vicinity of the rail 29. A reinforcing material 31 is inserted into the hollow portion 30. The reinforcing member 31 has a length slightly longer than, for example, half of the total length of the hollow portion 30. The reinforcing material 31 is formed by bending a nonflammable or flame-retardant metal plate such as stainless steel or steel into a substantially U shape. In the reinforcing material 31, the inner plate portion 31a, which is the upper side of the U-shape in FIG. 1, is fastened and fixed to the metal lower frame 16b by screws 35.

The reinforcing member 31 has two protrusions 37 arranged in a prospective direction on the lower surface (outer surface) of the outer plate portion 31b, which is the lower side of the U-shape in FIG. The outdoor protrusion 37 is provided at a corner between the outer plate portion 31b and the plate portion in the vertical direction. The protrusion 37 on the indoor side is provided substantially in the center of the outer plate portion 31b. As shown in FIG. 1, in the case of the present embodiment, the wall portion 41 forming the outer prospective surface (lower surface) of the hollow portion 30 of the metal lower frame 16b of the lower frame 12b is inclined upward toward the indoor side. An inclined surface 41a is provided. Therefore, when the reinforcing material 31 is inserted into the hollow portion 30, the reinforcing material 31 may fall counterclockwise in FIG. 1 to reduce the workability of the screw 35 fastening work. Further, the outer plate portion 31b has a larger gap between the outdoor end portion and the wall portion 41 than the gap between the indoor side end portion and the inclined surface 41a. Therefore, the load from the wall portion 41 (inclined surface 41a) is concentrated on the indoor side end portion of the outer plate portion 31b, and the deformation amount near the outdoor side end portion is larger than the deformation amount near the indoor side end portion. Therefore, there is a concern that the reinforcing material 31 may be deformed or the lower frame 12b may be overturned or deformed. Therefore, in the present embodiment, the protrusion 37 is provided on the outer plate portion 31b of the reinforcing member 31 to prevent the occurrence of defects such as deformation of the reinforcing member 31 and the lower frame 12b. The number and position of the protrusions 37 can be changed as appropriate.

The reinforcing member 31 is provided with two layers of thermally expandable members 25 on the inner surface of the outer plate portion 31b. The heat-expandable member 25 provided on the inner surface of the reinforcing member 31 may have one layer or three or more layers.

As shown in FIG. 2, a fin portion 32 is formed so as to protrude from the inner prospective surface of the vertical frame 12c at a position corresponding to the closed shoji screen 14. A fin portion 33 is formed so as to protrude from the prospective surface of the vertical frame 12d at a position corresponding to the closed shoji screen 15. The fin portions 32 and 33 extend over the entire length of the vertical frames 12c and 12d in the longitudinal direction and project inward.

As shown in FIGS. 1 and 2, a screen door device 34 is provided at the outdoor end of the opening frame 12. The screen door device 34 holds the screen 34b in the inner opening of the screen door frame 34a configured in a frame shape. The screen door device 34 is slidably arranged in the opening 13 of the opening frame 12.

As shown in FIGS. 1 and 2, the outdoor shoji 14 has an upper stile 36a, a lower stile 36b, a door tip stile 36c, and a combination stile 36d, which form a stile 36 surrounding the four circumferences, and a surface arranged inside. It is constructed by assembling the material 38 and the material 38.

The face material 38 is a two-layer double glazing in which a pair of glass plates 38a and 38b are arranged facing each other at intervals with a spacer 39 interposed therebetween. In the case of the present embodiment, the glass plate 38a arranged on the outdoor side is made of thick glass, wire-reinforced glass or heat-resistant tempered glass, and the glass plate 38b arranged on the indoor side is made of thin float glass.

The stile 36 has a composite structure in which a metal stile 40 arranged on the outdoor side and a resin stile 42 arranged on the indoor side are combined. The metal frame material 40 is an extruded shape material of a metal such as aluminum. The resin frame material 42 is an extruded shape material of a resin such as vinyl chloride resin (PVC).

The upper stile 36a is obtained by mounting the resin upper stile 42a of the resin stile material 42 on the indoor side finding surface of the metal upper stile 40a of the metal stile material 40. The lower stile 36b is obtained by mounting the resin lower stile 42b of the resin stile material 42 on the indoor side finding surface of the metal lower stile 40b of the metal stile material 40. The door tip stile 36c is formed by mounting the resin door tip stile 42c of the resin stile material 42 on the indoor side finding surface of the metal door tip stile 40c of the metal stile material 40. The combination stile 36d is composed of the metal combination stile 40d of the metal stile material 40.

The upper edge portion of the face material 38 is held between the metal upper stile 40a and the resin upper stile 42a, and the lower edge portion is held between the metal lower stile 40b and the resin lower stile 42b. The face material 38 is further held at the door end side edge portion between the metal door tip stile 40c and the resin door tip stile 42c, and the mating side edge portion is held by the metal mating stile 40d.

As shown in FIG. 1, the upper stile 36a has a guide groove 44 into which the rail 22 is slidably inserted on the outer prospective surface, and an opening groove 46 in which the face member 38 is arranged on the inner prospective surface. The guide groove 44 and the opening groove 46 extend over the entire length of the upper stile 36a. A hollow portion 48 is formed between the guide groove 44 and the opening groove 46. The guide groove 44 and the hollow portion 48 are formed in the metal upper frame 40a. The opening groove 46 is composed of a metal upper stile 40a and a resin upper stile 42a. The face material 38 is sandwiched and held in the opening groove 46 via a gasket.

The lower stile 36b has a guide groove 50 into which the rail 28 is inserted on the outer prospective surface, and an opening groove 52 on which the face member 38 is arranged on the inner prospective surface. The guide groove 50 and the opening groove 52 extend over the entire length of the lower stile 36b. A hollow portion 54 is formed between the guide groove 50 and the opening groove 52. The guide groove 50 and the hollow portion 54 are formed in the metal lower stile 40b. The opening groove 52 is composed of a metal lower stile 40b and a resin lower stile 42b. The face material 38 is sandwiched and held in the opening groove 52 via a gasket.

A door roller 56 is arranged on the metal lower stile 40b. The door roller 56 is a roller that smoothly slides the shoji 14 with respect to the opening frame 12 by rolling on the tip surface of the rail 28. Most of the door roller 56 is arranged in the hollow portion 54. The lower outer peripheral edge of the door roller 56 is arranged in the guide groove 50 through a notch formed in the lower wall of the hollow portion 54, and is rotatably contacted with the tip surface of the rail 28.

As shown in FIG. 2, the door end stile 36c has a holding groove 58 on the outer prospective surface and an opening groove 60 on which the face member 38 is arranged on the inner prospective surface. The holding groove 58 and the opening groove 60 extend over the entire length of the door tip stile 36c. A hollow portion 62 is formed between the holding groove 58 and the opening groove 60. The holding groove 58 and the hollow portion 62 are formed in the metal door tip frame 40c. The opening groove 60 is composed of a metal door tip stile 40c and a resin door tip stile 42c. The face material 38 is sandwiched and held in the opening groove 60 via a gasket. The holding groove 58 is a portion into which the fin portion 32 of the vertical frame 12c is inserted with the shoji 14 closed.

The combination stile 36d has an opening groove 64 on the inner prospective surface on which the face member 38 is arranged. The opening groove 64 extends over the entire length of the combination stile 36d. A hollow portion 66 is formed on the outside of the opening groove 64. The hollow portion 66 and the opening groove 64 are formed in the metal mating frame 40d. The face material 38 is sandwiched and held in the opening groove 64 via a gasket.

A reinforcing member 68 is inserted into the hollow portion 66 over substantially the entire length. The reinforcing material 68 is formed by bending a metal plate such as stainless steel or steel into a substantially U shape. The reinforcing material 68 may be other than metal as long as it is a nonflammable or flame-retardant material. The reinforcing member 68 is arranged so that the indoor side opens.

As shown in FIGS. 1 and 2, the shoji 15 on the indoor side can be slidably slid between the rail 23 of the upper frame 12a and the rail 29 of the lower frame 12b with respect to the shoji 14 on the outdoor side. The shoji 15 has almost the same structure as the sash 36d of the sash 14, except that it has a sash 36e having a different structure. Therefore, the shoji 15 will be specifically described with reference to the configuration of the combination stile 36e, and the other components will be designated by the same reference numerals as those of the shoji 14 and detailed description thereof will be omitted.

The combination stile 36e is obtained by mounting the resin combination stile 42e of the resin stile material 42 on the indoor side finding surface of the metal combination stile 40e of the metal stile material 40. The combination stile 36e has an opening groove 70 on the inner prospective surface on which the face member 38 is arranged. The opening groove 70 extends over the entire length of the mating stile 36e. A hollow portion 72 is formed on the outside of the opening groove 70, and hollow portions 73 are formed side by side on the indoor side of the hollow portion 72. The hollow portion 72 has an opening groove 70 formed by a wall portion serving as an inner prospective surface thereof. Further, a part of the outdoor side finding surface of the hollow portion 73 forms an opening groove 70. The hollow portions 72 and 73 are formed in the metal combination stile 40e. The face material 38 is sandwiched and supported in the opening groove 70 via a gasket.

A reinforcing member 76 is inserted into the hollow portion 72 on the outdoor side over a substantially overall length. Like the reinforcing material 68, the reinforcing material 76 is formed by bending a metal plate such as stainless steel or steel in a substantially U-shape, and may be other than metal as long as it is a nonflammable or flame-retardant material. .. The reinforcing member 76 is arranged so that the indoor side opens.

The combination stile 36e of the shoji 15 and the combination stile 36d of the shoji 14 can be locked by the crescent 78, whereby the shoji 14 and 15 are held in the closed state. The holding groove 58 of the door end stile 36c of the shoji 15 is a portion into which the fin portion 33 of the vertical frame 12d is inserted with the shoji 15 closed.

Next, a specific configuration of the frame 36 of the shoji screens 14 and 15 will be described.

FIG. 3A is an enlarged vertical cross-sectional view of the upper frame 12a and the upper stile 36a of the shoji 14, and FIG. 3B is an enlarged view of the periphery of the lower frame 12b and the lower stile 36b of the shoji 14. It is a vertical sectional view. FIG. 4A is an enlarged cross-sectional view of the periphery of the vertical frame 12c and the door end stile 36c of the shoji 14, and FIG. 4B is the periphery of the combined stiles 36d and 36e of the shoji 14 and 15. It is an enlarged cross-sectional view.

As shown in FIG. 3A, the upper stile 36a of the shoji 14 is provided with a heat-expandable member 25 over the entire length on the inner surface of the guide groove 44 on the indoor side. The opening groove 46 is provided with a drop-out prevention metal fitting 80 having a substantially L-shaped cross section. The fall-out prevention metal fitting 80 is fastened and fixed to the metal upper frame 40a with a screw 81. The fall-off prevention metal fitting 80 is a metal fitting for holding the face material 38 when the resin upper stile 42a is melted or burnt down in the event of a fire and preventing the resin upper stile 42a from falling off. The fall-off prevention metal fitting 80 may have, for example, a substantially U-shaped cross section. A heat-expandable member 25 extending over the entire length of the fall-prevention metal fitting 80 is provided at the indoor end of the bottom surface of the fall-prevention metal fitting 80. Since the upper stile 36a of the shoji 15 has the same configuration as the upper stile 36a of the shoji 14 shown in FIG. 3 (A), the same reference numerals are given and detailed description thereof will be omitted.

As shown in FIG. 3B, the lower stile 36b of the shoji 14 is provided with a heat-expandable member 25 over the entire length on the inner surface of the guide groove 50 on the indoor side. A heat-expandable member 25 having a length corresponding to the door roller 56 is provided on the outdoor inner surface of the hollow portion 54. The opening groove 52 is provided with a fall-out prevention metal fitting 80 similar to that of the upper stile 36a. A heat-expandable member 25 extending over the entire length of the fall-prevention metal fitting 80 is provided at the indoor end of the bottom surface of the fall-prevention metal fitting 80. A heat-expandable member 25 having a length corresponding to the setting block 83 (see FIG. 1) is provided at the outer end of the bottom surface of the fall-out prevention metal fitting 80. Since the lower stile 36b of the shoji 15 has the same configuration as the lower stile 36b of the shoji 14 shown in FIG. 3 (B), the same reference numerals are given and detailed description thereof will be omitted.

As shown in FIG. 4A, the door end stile 36c of the shoji 14 is provided with a heat-expandable member 25 extending over substantially the entire length at the bottom of the holding groove 58. Thermally expanding members 25 having a predetermined length with respect to the upper and lower ends thereof are provided on the inner surface of the hollow portion 62 on the indoor and outer surfaces. The opening groove 60 is provided with a drop-out prevention metal fitting 82 having a substantially U-shaped cross section. The fall-out prevention metal fitting 82 is fastened and fixed to the metal door tip frame 40c with a screw 81. The fall-off prevention metal fitting 82 is a metal fitting for holding the face material 38 and preventing the resin door tip frame 42c from falling off when the resin door tip stile 42c is melted or burnt down in the event of a fire. A heat-expandable member 25 extending over the entire length of the fall-prevention metal fitting 82 is provided at the indoor end of the bottom surface of the fall-out prevention metal fitting 82. Since the door tip stile 36c of the shoji 15 has the same configuration as the door tip stile 36c of the shoji 14 shown in FIG. 4 (A), the same reference numerals are given and detailed description thereof will be omitted.

As shown in FIG. 4B, the combination stile 36d of the shoji 14 is provided with a heat-expandable member 25 having a predetermined length on the indoor side finding surface. The reinforcing member 68 inserted into the hollow portion 66 is provided with a heat-expandable member 25 having a predetermined length on the indoor side surface of the U-shaped bottom portion. On the outdoor inner surface of the hollow portion 66, a heat-expandable member 25 having a predetermined length is provided at a position serving as a side portion of the reinforcing member 68, that is, a position serving as an end portion of the mating stile 36d. A heat-expandable member 25 having a predetermined length is provided on the inner surface of the hollow portion 66 on the indoor side. The opening groove 64 is provided with a falling-out prevention metal fitting 82 having a substantially U-shaped cross section similar to that of the door tip stile 36c. The fall-out prevention metal fitting 82 is fastened and fixed to the reinforcing member 68 by a screw 81 passing through the bottom wall of the opening groove 64. The fall-off prevention metal fitting 82 may have a substantially L-shaped cross section, for example. A heat-expandable member 25 extending over the entire length of the fall-prevention metal fitting 82 is provided at the indoor end of the bottom surface of the fall-out prevention metal fitting 82. A heat-expandable member 25 having a predetermined length is provided on the inner surface of the opening groove 64 on the indoor side.

The combination stile 36e of the shoji 15 is provided with a heat-expandable member 25 over the entire length on the outdoor side finding surface. The reinforcing member 76 is fastened and fixed to the metal mating frame 36e with screws 81. A heat-expandable member 25 is provided on the inner surface of the hollow portion 72 on the outdoor side on the indoor side at a position serving as a side portion of the reinforcing member 76, that is, a position serving as an end portion of the mating stile 36e. A heat-expandable member 25 having a predetermined length is provided on the inner surface of the hollow portion 72 on the indoor side, that is, the wall portion 77 partitioning between the hollow portions 72 and 73.

As shown in FIGS. 3 (A) to 4 (B), reinforcing members 68 and 76 are provided in the hollow portions 66 and 72 of the combined stiles 36d and 36e, but the other stiles 36a, 36b and 36c are provided with reinforcing members 68 and 76. No reinforcing material is inserted into the hollow portions 48, 54, 62. That is, in the fitting 10, a reinforcing material is inserted into the combination stiles 36d and 36e that are not supported by the opening frame 12 in order to secure sufficient fire resistance and wind pressure resistance. On the other hand, with respect to the other frames 36a, 36b, 36c supported by the opening frame 12, sufficient fire protection strength is ensured by making a part of the wall portion a thick wall structure.

Specifically, the upper stile 36a has a thick-walled structure of at least the outdoor wall portion 84 of the metal upper stile 40a forming the outdoor side finding surface 84a of the hollow portion 48 (see FIG. 3A). The upper stile 36a also has a thick-walled structure for the bottom wall portion 85 forming the bottom prospective surface of the opening groove 46 and the bottom wall portion 86 forming the bottom prospective surface of the guide groove 44. In the present embodiment, the plate thicknesses of the outdoor wall portion 84 and the bottom wall portions 85 and 86 are set to be the same, and the plate thickness is t1 respectively. That is, the three wall portions 84 to 86 forming the hollow portion 48 have a thick plate thickness t1.

The lower stile 36b has a thick-walled structure at least on the outdoor wall portion 88 of the metal lower stile 40b forming the outdoor side finding surface 88a (see FIG. 3B). In the lower stile 36b, the bottom wall portion 89 forming the bottom prospective surface of the opening groove 52 may also have a thick wall structure. However, in the present embodiment, since the bottom wall portion 89 is provided with a screw hole, the bottom wall portion 89 does not have a thick wall structure. The outdoor wall portion 88 has the same plate thickness t1 as the outdoor wall portion 84 of the upper stile 36a. In the present embodiment, the indoor side wall 90 of the metal lower stile 40b also has a thick structure having a plate thickness t1. That is, the two wall portions 88 and 90 forming the hollow portion 54 have a thick plate thickness t1.

The door end stile 36c has a thick-walled structure at least on the outdoor wall portion 92 of the metal door tip stile 40c forming the outdoor side finding surface 92a (see FIG. 4 (A)). The door tip stile 36c also has a thick-walled structure for the bottom wall portion 93 that forms the bottom prospective surface of the opening groove 60. In the present embodiment, the plate thicknesses of the outdoor wall portion 92 and the bottom wall portion 93 are set to be the same, and the plate thickness t1 is the same as that of the outdoor wall portion 84 of the upper stile 36a, respectively. That is, the two wall portions 92 and 93 forming the hollow portion 62 have a thick plate thickness t1.

The sash 36d of the shoji 14 has a reinforcing material 68 inserted in the hollow portion 66 in order to secure the fire resistance strength, the wind pressure resistance strength, and the like. Therefore, each wall portion forming the hollow portion 66 has a plate thickness t2 thinner than the plate thickness t1 (see FIG. 4B). In other words, since the reinforcing member 68 is inserted into the mating stile 36d, it is not necessary to form the metal mating stile 40d into a thick wall. Specifically, the combination stile 36d has a thin plate thickness t2 of the wall portion 71 forming the outdoor side finding surface 71a of the hollow portion 66. Further, the combined stile 36d includes a wall portion 75 forming an inner prospective surface on the opening groove 64 side of the hollow portion 66, a wall portion 79 forming an outer prospective surface of the hollow portion 66, and a wall portion forming an indoor side finding surface. The wall thickness of 87 is also a thin plate thickness t2. However, in the present embodiment, a part of the wall portion 87 forming the pocket-shaped recess in which the tight material is provided is thicker than the plate thickness t2.

The sash 36e of the shoji 15 has a reinforcing material 76 inserted in the hollow portion 72 on the outdoor side in order to ensure its fire resistance, wind pressure resistance, and the like (see FIG. 4 (B)). Therefore, each wall portion forming the hollow portion 72 has a plate thickness t2 thinner than the plate thickness t1. In other words, since the reinforcing member 76 is inserted into the mating stile 36e, it is not necessary to form the metal mating stile 40e thickly. Specifically, the combined stile 36e has a wall portion 91 forming an inner prospective surface on the opening groove 70 side of the hollow portion 72, a wall portion 96 forming an outer prospective surface of the hollow portion 72, and a meat of the wall portion 77. The plate thickness is t2, which is thin. However, in the present embodiment, a part of the outdoor wall portion 94 forming the pocket-shaped recess in which the heat-expandable member 25 is provided is thicker than the plate thickness t2.

On the other hand, in the hollow portion 73 on the indoor side into which the reinforcing material is not inserted, the indoor side wall portion 95 forming the indoor side finding surface 95a of the metal combination stile 40e has a thick plate thickness t3. The other three wall portions of the hollow portion 73 have a thin plate thickness of t2. The hollow portion 73 on the indoor side can be configured with a thin-walled structure because the reinforcing material 76 is inserted into the hollow portion 72 on the outdoor side and is not directly related to the holding of the face material 38. However, in order to improve the fire protection performance in the hollow portion 72 when the fitting 10 receives a flame or heat from the indoor side, the indoor side wall portion 95 has a thick plate thickness t3.

In this case, in the fitting 10 according to the present embodiment, the metal combination stile 40d (40e) of the combination stile 36d (36e) has a hollow portion (first hollow portion) in which the reinforcing material 68 (76) is inserted. 66 (72) is provided, and in the metal door tip stile 40c of the door tip stile 36c, at least the plate thickness t1 of the outdoor wall portion 92 forming the outdoor side finding surface 92a is hollow of the combined stile 36d (36e). A hollow portion (second hollow portion) 62 thicker than the plate thickness t2 of the wall portions 71, 75, 79, 87 (77, 91, 96) forming the portion 66 (72) is provided.

That is, in order to hold the face material 38 when the fitting 10 receives flame or heat, the fireproof strength of the door tip stile 36c and the combination stile 36d (36e), which are vertical stiles, is important. In this respect, the fitting 10 has a reinforcing material 68 (76) inserted into the hollow portion 66 (72) of the mating stile 36d (36e). As a result, the fitting 10 can secure the fire resistance strength of the combination stile 36d (36e) which is not supported by the opening frame 12. Further, the fitting 10 is a wall portion forming the hollow portion 66 (72) of the stile 36d (36e) by combining at least the plate thickness t1 of the outdoor wall portion 92 of the wall portions forming the hollow portion 62 of the door end stile 36c. The plate thickness is set to be thicker than t2. That is, the door tip stile 36c has a thick wall structure. As a result, the door tip stile 36c can secure sufficient fireproof strength without inserting a reinforcing material into the hollow portion 62 or by inserting a minimum reinforcing material that is lightweight and thin. Therefore, in the fitting 10, it is possible to secure the fire protection performance while suppressing the increase in cost and weight of the frame 36 (shoji 14 and 15). Further, since the door tip stile 36c has a thick wall structure, the number of heat-expandable members 25 installed on the door tip stile 36c can be reduced, and the cost can be further reduced.

As for the wall thicknesses of the wall portions 71, 75, 79, 87 of the hollow portion 66, if one or more of the wall portions are formed with a thin plate thickness t2, the effect of reducing the weight and cost can be obtained, and the hollow portion 66 is hollow. The same applies to the wall portions 77, 91, 96 of the portion 72. Further, although there is a part having a thick wall such as the wall part 87, even if there is a part having a thick part, most of the wall part 87 should be made of a thin wall. For example, the increase in weight and cost is limited, and in some cases, a sufficient effect can be obtained.

In the fitting 10, the hollow portion 62 of the door end stile 36c has a plate thickness t1 of the bottom wall portion 93 which is an opening side wall portion forming an opening groove 60 for holding the face material 38, and the hollow portion t1 of the combined stile 36d (36e) is hollow. It is thicker than the plate thickness t2 of the wall portions 71, 75, 79, 87 (77, 91, 96) forming the portion 66 (72). As a result, the fitting 10 can further increase the fire resistance against the holding of the face material 38 by the door end stile 36c.

As described above, in the fitting 10, since the door end stile 36c has a thick wall structure, sufficient fireproof strength can be ensured without inserting a reinforcing material into the hollow portion 62 thereof. Therefore, the fitting 10 can be significantly reduced in cost and weight.

In the fitting 10, in the metal upper stile 40a of the upper stile 36a, the plate thickness t1 of the outdoor wall portion 84 forming at least the outdoor side finding surface 84a forms the hollow portion 66 (72) of the combined stile 36d (36e). A hollow portion (third hollow portion) 48 thicker than the plate thickness t2 of the wall portions 71, 75, 79, 87 (77, 91, 96) is provided. Further, on the metal lower stile 40b of the lower stile 36b, at least the plate thickness t1 of the outdoor wall portion 88 forming the outdoor side finding surface 88a forms the hollow portion 66 (72) of the combined stile 36d (36e). A hollow portion (fourth hollow portion) 54 thicker than the plate thickness t2 of the portions 71, 75, 79, 87 (77, 91, 96) is provided. As described above, the fitting 10 also has a thick-walled structure for the upper stile 36a and the lower stile 36b. As a result, the upper stile 36a and the lower stile 36b can secure sufficient fireproof strength without inserting a reinforcing material into the hollow portions 48 and 54 or by inserting a lightweight and thin minimum reinforcing material. Therefore, in the fitting 10, it is possible to secure the fire protection performance while further suppressing the increase in cost and weight of the frame 36 (shoji 14 and 15). Further, by making the upper stile 36a and the lower stile 36b a thick-walled structure, the number of heat-expandable members 25 installed on the upper stile 36a and the lower stile 36b can be reduced, and the cost can be further reduced. It should be noted that such a thick-walled structure does not necessarily have to be provided in all of the upper stile 36a, the lower stile 36b, and the door end stile 36c. Good.

In the fitting 10, the metal mating stile 40e of the mating stile 36e is provided with a hollow portion (fifth hollow portion) 73 alongside the indoor side of the hollow portion (first hollow portion) 72 on the outdoor side. Then, while one wall portion of the hollow portion 72 forms an opening groove 70 for holding the face material 38, no reinforcing material is inserted into the hollow portion 73. That is, in the shoji 15 which is the inner shoji of the fitting 10, the hollow portion 72 on the outdoor side forms the opening groove 70 for holding the face material 38, so that sufficient fire resistance is required. Further, since the hollow portion 72 also serves as a mating portion with the shoji 14 serving as an external shoji, strength against wind pressure and the like is also required. On the other hand, the hollow portion 73 on the indoor side has little influence on the fire resistance and the like. Therefore, in the fitting 10, the reinforcing material 76 is inserted into the hollow portion 72 on the outdoor side, while the reinforcing material is not inserted into the hollow portion 73 on the indoor side in order to balance strength, cost, and weight.

In the fitting 10, the upper frame 12a of the opening frame 12 has a hollow portion 26 on the opposite side of the inner prospective surface 21 which is on the shoji 14 and 15 sides. That is, the hollow portion 26 forms the heat insulating structure portion of the upper frame 12a. As a result, the fitting 10 can mitigate the influence of flame, heat, or solar radiation at the hollow portion 26, and can prevent damage to the inner prospective surface 21 side of the upper frame 12a that supports the shoji screens 14 and 15. Further, it is possible to prevent the upper frame 12a from opening and the shoji screens 14 and 15 from falling off in the event of a fire.

In this case, the upper frame 12a is formed with a rail 22 for guiding the shoji 14 protruding from the inner prospective surface 21, and the inside of the hollow portion 26 is partitioned by a support column wall 26a provided on an extension line of the rail 22. ing. As described above, since the upper frame 12a has the support column wall 26a on the extension line of the rail 22, the heat elongation of the shoji 14 in the event of a fire or the like can be suppressed by the support column wall 26a. As a result, a gap is less likely to occur between the upper frame 12a and the shoji 14 on the outdoor side, and the fire resistance is further improved.

In the combination stile 36e, the U-shaped reinforcing member 76 inserted into the hollow portion 72 on the outdoor side is arranged so as to open to the wall portion 77 side partitioning from the hollow portion 73 on the indoor side. As a result, when a flame or heat is received from the outdoor side, this can be reliably prevented by the bottom of the reinforcing member 76.

It should be noted that the present invention is not limited to the above-described embodiment, and of course, it can be freely changed without departing from the gist of the present invention.

In the above embodiment, a sliding window in which two shoji screens 14 and 15 are slidable is illustrated, but the fitting 10 may be configured by, for example, a single sliding window in which one shoji screen 15 is fitted into the opening frame 12. Good. Further, the fitting 10 may be configured by a sliding door in which three or more shoji are slidably provided. In this case, the shoji in the middle of the shoji on both the left and right ends does not have a door stile.

In the above embodiment, a composite sash in which the opening frame 12 and the frame 36 are made of a composite structure of aluminum and resin is exemplified, but the fitting 10 can also be used for an aluminum sash or the like in which the opening frame 12 and the frame 36 are made of aluminum alone. Applicable.

10 joinery, 12 opening frame, 12a upper frame, 12b lower frame, 12c, 12d vertical frame, 14,15 shoji, 16 metal frame material, 18 resin frame material, 21 inside prospective surface, 22, 23, 28, 29 rails, 25 Thermal expansion member, 26,30,48,54,62,66,72,73 Hollow part, 26a prop wall, 31,68,76 Reinforcing material, 36 stile body, 36a upper stile, 36b lower stile, 36c door Tip stile, 36d, 36e combination stile, 40 metal stile, 42 resin stile, 44,50 guide groove, 46,52,60,64,70 opening groove, 58 holding groove, 84,88,92,94 outdoor Side wall, 71a, 84a, 88a, 92a Outdoor finding surface, 80,82 Fall prevention metal fittings, 85,86,89,93 Bottom wall

Claims (10)

A fitting that slides at least one shoji with an opening frame and holds a face material with a stile having an upper stile, a lower stile, a door tip stile, and a combination stile.
The combination stile is provided with a first hollow portion into which a reinforcing material is inserted.
The door end stile is provided with a second hollow portion.
A pocket-shaped recess for providing a tight material or a heat-expandable member is formed on the wall portion forming the first hollow portion.
Of the wall portions forming the second hollow portion, at least the thickness of the outdoor wall portion forming the outdoor side finding surface is the wall portion forming the pocket-shaped recess among the wall portions forming the first hollow portion. Joinery characterized by being thicker than the plate thickness of the part excluding. In the fitting according to claim 1,
It said second hollow portion of the door leading stile is the thickness of the opening side wall portion forming part of the open groove for holding the surface material, the plate of the wall portion defining the first hollow portion of the召合allowed stile Joinery characterized by being thicker than thick. In the fitting according to claim 1 or 2,
A fitting characterized in that no reinforcing material is inserted into the second hollow portion of the door end stile. In the fitting according to any one of claims 1 to 3,
On said rail is the thickness of the chamber outer wall portion forming at least the outdoor side find surface, said third hollow portion thicker than the thickness of the wall portion forming the first hollow portion of the召合allowed stile is provided ,
The said lower rail, the thickness of the chamber outer wall portion forming at least the outdoor side find surface, the fourth hollow portion thicker than the thickness of the wall portion forming the first hollow portion of the召合allowed stile is provided Joinery characterized by being. In the fitting according to claim 4,
A fitting characterized in that no reinforcing material is inserted into the third hollow portion of the upper stile and the fourth hollow portion of the lower stile. In the fitting according to any one of claims 1 to 5,
The combination stile is provided with a fifth hollow portion alongside the indoor side of the first hollow portion, and one wall portion of the first hollow portion forms an opening groove for holding the face material. ,
A fitting characterized in that no reinforcing material is inserted into the fifth hollow portion. In the fitting according to any one of claims 1 to 6, the fitting
The upper frame of the opening frame is a fitting having a hollow portion on the opposite side of the inner prospective surface to be the shoji side. In the fitting according to claim 7,
In the upper frame, a rail for guiding the shoji is projected on the inner prospective surface.
A fitting characterized in that the inside of the hollow portion is partitioned into a plurality of spaces by a column wall provided on an extension line of the rail. A fitting that slides at least one shoji with an opening frame and holds a face material with a stile having an upper stile, a lower stile, a door tip stile, and a combination stile.
The combination stile is provided with a first hollow portion into which a reinforcing material is inserted.
The upper stile is provided with a third hollow portion.
A pocket-shaped recess for providing a tight material or a heat-expandable member is formed on the wall portion forming the first hollow portion.
Of the wall portions forming the third hollow portion, at least the thickness of the outdoor wall portion forming the outdoor side finding surface is the wall portion forming the pocket-shaped recess among the wall portions forming the first hollow portion. Joinery characterized by being thicker than the plate thickness of the part excluding. A fitting that slides at least one shoji with an opening frame and holds a face material with a stile having an upper stile, a lower stile, a door tip stile, and a combination stile.
The combination stile is provided with a first hollow portion into which a reinforcing material is inserted.
The lower stile is provided with a fourth hollow portion.
A pocket-shaped recess for providing a tight material or a heat-expandable member is formed on the wall portion forming the first hollow portion.
Of the wall portions forming the fourth hollow portion, at least the thickness of the outdoor wall portion forming the outdoor side finding surface is the wall portion forming the pocket-shaped recess among the wall portions forming the first hollow portion. Joinery characterized by being thicker than the plate thickness of the part excluding.

Images