JP2017002639A - Fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting capable of securing sufficient fireproof performance, in a structure for constituting a sash of a resin opening frame and a resin stile body.SOLUTION: Jambs 14c and 14d of an opening frame 14 of a fitting 10 are provided with a hollow part 24 extending over its longitudinal direction, and a metallic reinforcement material 27 fixed to a skeleton 12 is inserted into this hollow part 24. An arm 28 is installed on and fixed to an inner surface 48 opposed to stiles 34c and 34d of a stile body 34 by a metallic installation stay 28a fixed to an installation plate 30 arranged in the hollow part 24 by sandwiching a plate thickness part of an opening frame 14, and is fixed to the reinforcement material 27 by sandwiching the plate thickness part of the jambs 14c and 14d in a position of overlapping with the installation stay 28a in the longitudinal direction of the inner surface 48 of the jambs 14c and 14d of the opening frame 14, and is thereby provided with a flame shielding metal fitting 60 interposed in a clearance G in the aspect direction formed between the opening frame 14 and the stile body 34.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a fitting that opens and closes a shoji stored in an opening frame by moving the shoji in an expected direction with respect to the opening frame.

  In windows provided in buildings such as stores and houses, an arm is connected between the opening frame fixed to the building frame and the frame that constitutes the shoji, and the frame is moved in the expected direction via this arm. Thus, fittings such as sliding windows and vertical sliding windows that open and close the shoji are widely used.

  For example, in Patent Document 1, each frame or ridge is opposed to the metal ridge of the metal frame in a joinery having a structure in which the metal frame or the metal ridge is provided on the outdoor side of each of the indoor resin frame and the resin ridge. A configuration is disclosed in which a metal fitting is screwed to the inner surface and a fire-expandable thermal expansion member is provided on the metal fitting.

JP 2013-144877 A

  By the way, unlike the case of a joinery having a composite structure of resin and metal as in the configuration of the above-mentioned Patent Document 1, the joinery of a resin window composed of a resin frame and a resin fence is further affected by heat and flame such as fire. It is easy to build a more sufficient fire prevention structure. Especially in resin window fittings, when the shoji is greatly warped due to the heat of fire etc., the gap between the outer surface of the shoji and the inner surface of the opening frame expands to become a through hole for heat and flame, It is necessary to prevent the occurrence of this through hole. Furthermore, it may be difficult to ensure the installation location of the thermally expandable member or to smoothly expand the installed thermally expandable member near the mounting portion of the arm connecting the opening frame and the housing. In some cases, it is necessary to provide a sufficient fire prevention structure in this part.

  The present invention has been made in consideration of the above-mentioned problems of the prior art, and has a structure in which a shoji is configured by a resin opening frame and a resin housing, and can provide a sufficient fireproof performance. The purpose is to provide.

  In the joinery according to the present invention, an arm is connected between a resin opening frame fixed to a housing of the building and a housing constituting a resin shoji, and the housing is opened through the arm. A fitting that opens and closes the shoji with respect to the opening frame by moving the frame in a prospective direction, and at least one of the vertical frame and the horizontal frame of the opening frame has a hollow extending in the longitudinal direction. A metal reinforcing material fixed to the housing is inserted into the hollow portion, and the arm is attached to the mounting plate or the reinforcing material disposed in the hollow portion. A position that is attached and fixed to the inner surface of the opening frame facing the housing by a metal mounting stay that is connected across a plate thickness portion of the opening frame, and overlaps the mounting stay in the longitudinal direction of the inner surface of the opening frame The plate thickness portion of the opening frame with respect to the reinforcing material By being interposed therebetween fixed, characterized in that Saegien bracket interposed find the direction of the gap formed between the rail body and the opening frame is provided.

  According to such a structure, the flame-proof metal fitting which interposes in the clearance gap between the opening frame and a housing in the position which overlaps with the attachment stay of the arm where it is difficult to ensure fireproof performance is provided. For this reason, even if the shoji is greatly warped due to the influence of heat such as a fire, this gap can be prevented from becoming a flame or a heat through hole, and the shoji can be prevented by the resin opening frame and the resin enclosure. Sufficient fireproof performance can be ensured even with the constructed structure. Moreover, since the flame barrier metal fitting is fixed to a metal reinforcing material inserted into the hollow portion of the opening frame and fixed to the housing, the opening frame is softened or burned out due to a fire or the like. Even if it does not fall off, its fireproof performance can be maintained.

  In the joinery according to the present invention, the flame shield metal fitting may have a flame shield plate portion that protrudes along the finding direction from the inner surface of the opening frame toward the housing. If it does so, the clearance gap between an opening frame and a housing can be block | closed by this flame-shielding board part.

  In the joinery according to the present invention, the flameproof metal fitting may have a reinforcing plate part that is bent from the flameproof plate part. If it does so, the intensity | strength of a flame-proof metal fitting can be raised.

  In the joinery according to the present invention, at least the flame shield plate portion or the reinforcing plate portion may be provided with a first thermally expandable member that expands toward the gap when heated. . Then, when receiving heat such as a fire, the first thermally expansible member expands toward the gap between the opening frame and the housing, so that the gap can be more reliably closed. It can prevent more reliably that it becomes a through-hole of a flame and heat.

  In the fitting according to the present invention, the opening frame includes a prospective surface, which is the inner surface to which the attachment stay is attached and fixed, and a finding surface serving as a door to the shoji by projecting from the prospective surface toward the shoji. The flame shield metal fitting is formed by bending the flame shield plate portion disposed on the finding surface and the flame shield plate portion, and is disposed on the prospective surface and fixed to the reinforcing material. The structure which has a fixed board part which may be sufficient. If it does so, a flame-shielding metal fitting can be easily fixed with respect to the inner surface of an opening frame in the state which interposed the flame-shielding board part in the clearance gap between an opening frame and a housing. Moreover, the flame shield can be concealed by the finding surface of the opening frame, and the flame shield is not conspicuous on the appearance of the joinery.

  In the joinery according to the present invention, the opening frame has a welded portion in which the vertical frame and the horizontal frame are joined by welding, and the flame shield metal fitting is disposed at a position that does not interfere with the welded portion. It may be a configuration. Thus, if a flame shield metal fitting is arrange | positioned avoiding the uneven | corrugated shape in a welding part, a flame shield metal fitting can be stably fixed without rattling.

  In the joinery according to the present invention, the reinforcing member may be provided with a second thermally expandable member that expands toward the gap when heated. Then, when the joinery receives heat such as a fire, the second thermal expansibility provided in the reinforcing material inside the hollow portion is expanded after the first thermal expansible member provided in the flame shield metal fitting expands. Since the members expand, these thermally expandable members can be expanded with a time difference. As a result, the gap between the opening frame and the casing can be closed for a longer time with the expanded thermal expansion member.

  According to the present invention, even when the shoji is greatly warped due to the influence of heat such as a fire, the gap between the opening frame and the housing can be prevented from becoming a flame or heat through-hole, Sufficient fireproofing performance can be ensured even though the shoji is constructed of an opening frame and a resin housing. Moreover, since the flame barrier metal fitting is fixed to a metal reinforcing material fixed to the casing, even if the opening frame is softened or burned down due to a fire or the like, its fireproof performance Can be maintained.

Drawing 1 is a front view which looked at the fitting concerning one embodiment of the present invention from the indoor side. FIG. 2 is a longitudinal sectional view of the joinery shown in FIG. FIG. 3 is a cross-sectional view of the joinery shown in FIG. FIG. 4 is an enlarged cross-sectional view of the periphery of one vertical frame and one vertical rod shown in FIG. FIG. 5 is a cross-sectional view in which the arm and its related parts in FIG. 4 are omitted. FIG. 6 is a configuration diagram of the flameproof metal fitting, FIG. 6 (A) is a plan view, and FIG. 6 (B) is a side view. FIG. 7 is a perspective view of the vicinity of an arm attached and fixed to one vertical frame of the opening frame as viewed from below. FIG. 8 is a rear view of the vicinity of the flame shield metal fitting attached and fixed to one vertical frame of the opening frame as viewed from the outdoor side.

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

  FIG. 1 is a front view of a joinery 10 according to an embodiment of the present invention viewed from the indoor side, FIG. 2 is a longitudinal sectional view of the joinery 10 shown in FIG. 1, and FIG. 3 is shown in FIG. 1 is a cross-sectional view of a joinery 10.

  As shown in FIGS. 1 to 3, the fitting 10 includes an opening frame 14 that is fixed to the opening 12 a of the building frame 12, and a shoji 16 that is supported inside the opening frame 14 so as to be opened and closed. In the present embodiment, a sliding window joinery 10 in which the shoji 16 is slidably assembled to the outside of the prospective direction of the horizontally long opening frame 14 is illustrated.

  The opening frame 14 is formed by forming a rectangular opening by quadrangling an upper frame 14a and a lower frame 14b, which are upper and lower horizontal frames, and left and right vertical frames 14c and 14d. The upper frame 14a, the lower frame 14b, and the vertical frames 14c and 14d are members obtained by extrusion molding a resin such as vinyl chloride resin (PVC). The upper frame 14a, the lower frame 14b, and the vertical frames 14c and 14d are formed by the same frame member having a predetermined length and having its end cut at 45 degrees, and the cross-sectional shapes thereof are the same. The opening frame 14 is joined to each other by appropriately abutting and welding the ends cut at 45 degrees of the upper frame 14a, the lower frame 14b, and the vertical frames 14c and 14d. The upper frame 14a, the lower frame 14b, and the vertical frames 14c and 14d are each fixed to the housing 12 using a fixture 15 such as a nail or a screw.

  As shown in FIG. 2, the upper frame 14 a includes a shoji placement portion 18 where the shoji 16 is placed on the prospective surface, a protruding portion 20 projecting inward from the indoor side of the shoji placement portion 18, and a shoji placement portion. 18 and a draining portion 22 protruding from the outdoor side. The projecting portion 20 has a door-side surface of the shoji 16 on the outdoor side.

  The upper frame 14a is provided with a hollow portion 24 extending in the longitudinal direction. A reinforcing member 25 in which a metal plate such as aluminum, steel, and stainless steel is formed in a substantially U shape is inserted into the hollow portion 24 in the longitudinal direction. A heat-expandable member 26 that expands when heated is provided on the outer surface of the vertical portion of the reinforcing member 25 and the inner surface (the lower surface that faces the inner surface of the hollow portion 24) of the lower horizontal portion. . The thermally expandable member 26 is a nonflammable or flame retardant member that expands due to heat, and corresponds to, for example, a thermally expandable graphite-containing foam material.

  As shown in FIGS. 2 and 3, the shoji placement portion 18, the protruding portion 20, the draining portion 22, and the hollow portion 24 are also provided in the lower frame 14 b and the vertical frames 14 c and 14 d.

  In the hollow portion 24 of the lower frame 14b and the vertical frames 14c and 14d, a reinforcing material 27 having a shape different from that of the reinforcing material 25 of the upper frame 14a is inserted in the longitudinal direction. The reinforcing member 27 is formed by forming a metal plate such as aluminum, steel, stainless steel or the like in a substantially U-shape and providing a bent shape at the ends of two sides. Band-like thermally expandable members 26a and 26b are provided side by side in the prospective direction on the prospective surface (the surface facing the inner surface of the hollow portion 24) facing the inside of the reinforcing member 27 of the vertical frames 14c and 14d. (See FIG. 3). The thermally expandable members 26a and 26b are nonflammable or flame retardant members that expand due to heat, and correspond to, for example, a thermally expandable graphite-containing foam material.

  As shown in FIG. 3, a mounting plate 30 serving as a back plate for mounting the arm 28 described later is disposed at a predetermined position in the longitudinal direction of the hollow portion 24 of the vertical frames 14c and 14d. The mounting plate 30 is formed by forming a metal plate such as aluminum, steel, stainless steel or the like into a substantially U shape, similarly to the reinforcing members 25 and 27, and is shorter than the reinforcing members 25 and 27.

  The shoji 16 includes a face member 32 disposed on the inner side, and upper and lower reeds 34a, 34b, and left and right vertical reeds 34c and 34d, which are upper and lower reeds that form a casing 34 surrounding the four peripheral edges of the face member 32. Is a combination of

  The face material 32 is a double-layer glass in which a pair of glass plates 32a and 32b are arranged facing each other with a space therebetween via spacers provided at the four peripheral edges. In the case of this embodiment, the glass plate 32a arranged on the outdoor side is a thick plate glass with a net, and the glass plate 32b arranged on the indoor side is a thin plate glass.

  The upper rod 34a, the lower rod 34b, and the vertical rods 34c, 34d are members obtained by extruding a resin such as vinyl chloride resin (PVC). The upper rod 34a, the lower rod 34b, and the vertical rods 34c, 34d are formed by the same rod member having a predetermined length and the end cut at 45 degrees, and the cross-sectional shapes thereof are the same. The ends 34 of the upper case 34a, the lower side 34b, and the vertical side 34c, 34d are appropriately abutted and welded to each other so that the case 34 is joined to each other.

  As shown in FIG. 2, the upper rod 34 a includes a surface material arrangement portion 36 where the face material 32 is arranged on the prospective surface, a pressing edge 38 which becomes an outdoor side wall portion of the surface material arrangement portion 36, and an upper surface of the upper rod 34 a. And a protrusion 40 protruding upward from the outdoor side. The pressing edge 38 is mounted so as to hold the edge portion of the face material 32 arranged in the face material arrangement portion 36 from the outdoor side.

  In the upper collar 34a, hollow portions 41 and 42 extending in the longitudinal direction are provided side by side in the indoor / outdoor direction. Reinforcing members 43 and 44 in which metal plates such as aluminum, steel, and stainless steel are formed in a substantially U shape are inserted in the hollow portions 41 and 42 in the longitudinal direction. Thermally expansible members 26 are respectively provided on the indoor outside finding surfaces of the vertical portions of the reinforcing members 43 of the hollow portions 41. A pair of thermally expandable members 26, 26 are provided side by side in the prospective direction on the outer surface of the upper horizontal portion of the reinforcing member 44 of the hollow portion 42 (the upper surface that faces the inner surface of the hollow portion 42). . Further, the upper surface of the upper wall of the hollow portion 42 (the surface facing the shoji placement portion 18 of the upper frame 14a) is opposed to the thermally expandable member 26 provided in the reinforcing member 44 with the upper wall interposed therebetween. A thermally expandable member 26 is provided.

  As shown in FIGS. 2 and 3, the face material arrangement portion 36, the pressing edge 38, the protruding portion 40, and the hollow portions 41 and 42 are also provided in the lower rod 34 b and the vertical rods 34 c and 34 d.

  In the lower rod 34b and the vertical rods 34c and 34d, a reinforcing material 43 is inserted in one hollow portion 41 in the longitudinal direction, and a reinforcing material 45 having a shape different from that of the reinforcing material 44 is inserted in the other hollow portion 42 in the longitudinal direction. It is inserted across the direction. The reinforcing member 45 is formed by forming a metal plate such as aluminum, steel, stainless steel or the like into a substantially U shape and providing a bent shape at the tip of one side.

  In the lower rod 34 b and the vertical rods 34 c and 34 d, the thermally expandable member 26 is provided on the indoor-side finding surface of the vertical portion of the reinforcing member 43. In the lower rod 34b, the thermally expandable member 26 is also provided on the indoor-side finding surface of the vertical portion of the reinforcing member 45 (see FIG. 2). Band-like thermally expandable members 26c and 26d are formed on the prospective surface facing the outside of the reinforcing member 45 of the vertical rods 34c and 34d (the surface facing the inner side surface of the hollow portion 42 on the side of the vertical frames 14c and 14d). They are arranged side by side in the prospective direction (see FIG. 3). The thermally expandable members 26c and 26d are nonflammable or flame retardant members that expand due to heat, and correspond to, for example, a thermally expandable graphite-containing foam material. In the vertical rods 34c and 34d, the thermally expandable member 26 is also provided on the indoor-side finding surface of the reinforcing member 45. In addition, the prospective surface of the outer wall facing the vertical frames 14c and 14d of the hollow portion 42 of the vertical rods 34c and 34d (the surface facing the shoji placement portion 18 of the vertical frames 14c and 14d) is provided on the reinforcing member 45. A thermally expandable member 26e is provided so as to face the thermally expandable members 26c and 26d across the outer wall.

  In the shoji 16, the face material 32 is held by attaching the pressing edge 38 to the outdoor side after the face material 32 is attached to the face material arrangement portion 36 of the housing 34. When such a shoji 16 is mounted on the shoji placement portion 18 of the opening frame 14, the left and right vertical frames 14c and 14d and the left and right vertical rods 34c and 34d are respectively connected by the arms 28 (see FIG. 3). ). As a result, the shoji 16 is disposed inside the opening frame 14 so as to be openable and closable under the support action of the arm 28, and as shown in the upper ridges 34 a A and 34 a B and the lower ridge 34 b A in FIG. Opened and closed while moving. A handle 46 that is operated when opening / closing the shoji 16 is disposed on the indoor side of the lower rod 34b.

  Next, a specific mounting structure of the arm 28 and a fire prevention structure provided in the periphery thereof will be described.

  4 is an enlarged cross-sectional view of the periphery of one vertical frame 14c and one vertical rod 34c shown in FIG. 3, and FIG. 5 is a cross-sectional view in which the arm 28 and its related parts in FIG. 4 are omitted. FIG.

  As shown in FIG. 4, the arm 28 is attached and fixed to an inner surface (expected surface) 48 positioned at the shoji placement portion 18 of the vertical frame 14c opposite to the vertical rod 34c on one end side, and the inner surface 48 of the vertical frame 14c on the other end side. The vertical frame 14c and the vertical rod 34c are connected to each other by being attached and fixed to the outer surface (expected surface) 50 of the vertical rod 34c opposite to the vertical frame 34c.

  As shown in FIG. 4, the vertical frame 14 c is fixed to the housing 12 by a fixing tool 15 via an attachment fitting 52 having an L-shaped cross section. A reinforcing member 27 in the hollow portion 24 is fixed to the mounting bracket 52 with a connecting member 53 such as a screw, a rivet, or a bolt and nut, with the thickness portion of the vertical frame 14c being sandwiched between the reinforcing member 27 and the mounting plate 30. The gap is similarly fixed by the connector 54. The reinforcing material 27 and the mounting plate 30 are inserted into the hollow portion 24 before the vertical frame 14c is welded and joined to the upper frame 14a and the lower frame 14b. The mounting plate 30 is fixed to a mounting stay 28a, which is a mounting bracket on one end of the arm 28 disposed on the inner surface 48 of the vertical frame 14c, by a connector 55 with a plate thickness portion of the wall portion of the hollow portion 24 interposed therebetween. The Thereby, the arm 28 is attached and fixed to the inner surface 48 of the vertical frame 14c.

  Further, the mounting stay 28b, which is a mounting bracket on the other end side of the arm 28 disposed on the outer surface 50 of the vertical rod 34c, is connected to the reinforcing member 43 with the plate thickness portion of the wall portion of the hollow portion 41 interposed therebetween. Fixed by. Thereby, the arm 28 is attached and fixed to the outer surface 50 of the vertical rod 34c. Further, the U-shaped drop-off preventing metal fitting 57 that holds the edge of the face material 32 in the face material arranging portion 36 and the reinforcing material 43 sandwich the plate thickness portion of the wall portion of the hollow portion 41, and the connecting tool 58. Fixed by.

  Therefore, in the vertical frame 14 c and the vertical rod 34 c, the mounting bracket 52, the coupling tool 53, the reinforcing member 27, the coupling tool 54, the mounting plate 30, and the coupling tool 55 are metal parts between the casing 12 and the face material 32. Are connected by a mounting stay 28a, an arm 28, a mounting stay 28b, a connecting tool 56, a reinforcing member 43, a connecting tool 58 and a drop-off preventing metal fitting 57 (see FIG. 4), and the same applies to the vertical frame 14d and the vertical rod 34d. It has a structure (see FIG. 3). In FIGS. 3 and 5, illustrations of the couplers 53 to 56, 58, etc. are omitted in order to ensure the visibility of the drawings.

  As described above, the joinery 10 is a resin window in which the opening frame 14 and the casing 34 of the shoji 16 are made of resin. When the opening frame 14 and the casing 34 are softened or burnt down due to heat from a fire or the like, the shoji 16 There is a concern that the face material 32 may fall off. Therefore, the casing 12 and the face material 32 are connected with metal parts as described above to prevent the shoji 16 and the face material 32 from falling off. Further, in the joinery 10, when the left and right ends of the housing 34 are warped toward the outdoor side, the gap G (see FIGS. 4 and 5) in the direction of finding between the housing 34 and the opening frame 14 is enlarged. However, in this case, the thermally expandable members 26a to 26e provided around the same expand to close the gap G. As a result, even if the protrusions 20 and 40 are burned out, the enlarged gap G can be prevented from becoming a through hole for heat or flame.

  However, in the portion where the mounting stay 28a of the arm 28 is provided, the inner surfaces 48 of the vertical frames 14c and 14d are covered with the mounting stay 28a, and a notch 27a (see FIG. 8) is formed in the longitudinal direction of the reinforcing member 27 by the mounting plate 30. Reference) is also required. For this reason, in order to block the vertical frames 14c and 14d side of the gap G, there is a concern that only the thermally expandable members 26a and 26b provided on the reinforcing member 27 are insufficient. Therefore, in the joinery 10, the flame shield 60 is provided in the vicinity of the arms 28 of the vertical frames 14 c and 14 d, and the thermally expandable member 26 f is provided on the flame shield 60 to reinforce the fire prevention structure.

  6 is a configuration diagram of the flame shield 60, FIG. 6 (A) is a plan view, and FIG. 6 (B) is a side view. FIG. 7 is a perspective view of the vicinity of the arm 28 attached and fixed to one vertical frame 14c of the opening frame 14 from below, and FIG. 8 is a block diagram of the shielding attached and fixed to one vertical frame 14c of the opening frame 14. It is the rear view which looked at flame flame 60 vicinity from the outdoor side. In FIG. 8, among the reinforcing material 27 and the mounting plate 30 arranged in the hollow portion 24 of the vertical frame 14 c in order to clearly show the structure of each component, the reinforcing material 27 is illustrated by a broken line, but the mounting plate 30 is indicated by a solid line. In the following, the structure provided on one vertical frame 14c of the flameproof metal fitting 60 will be representatively described. However, the flameproof metal fitting 60 on the other vertical frame 14d side is symmetrical to the one on the vertical frame 14c side. Detailed description is omitted.

  The flame shield 60 is formed of a metal plate such as aluminum, steel, or stainless steel. As shown in FIG. 6A and FIG. 6B, the flame shield 60 is bent so as to be orthogonal to the strip-shaped flame shield plate 60a extending in the vertical direction and the flame shield plate 60a. The reinforcing plate portion 60b is narrower than the flame shield plate portion 60a, and the fixing plate portion 60c protrudes from one end of the reinforcing plate portion 60b. Since the flame shield 60 is formed in an L-shaped cross section by bending between the flame shield plate portion 60a, the reinforcing plate portion 60b, and the fixed plate portion 60c, it has high component strength. A heat-expandable member 26f is provided on the outdoor-side finding surface of the flame shield plate 60a along the longitudinal direction thereof.

  As shown in FIGS. 5 and 7, the flame shield 60 is provided at a position overlapping the mounting stay 28a in the longitudinal direction of the inner surface 48 of the vertical frame 14c. Specifically, in the flame shield metal fitting 60, the flame shield plate portion 60a is disposed on the outdoor side finding surface of the protruding portion 20 of the vertical frame 14c, and the reinforcing plate portion 60b and the fixed plate portion 60c are the prospective surfaces of the vertical frame 14c. Located on an inner surface 48. Then, a fixture 62 such as a screw, a rivet, or a bolt and nut passed through a hole 60d formed in the fixing plate portion 60c is fixed to the reinforcing member 27 with the plate thickness portion of the wall portion of the hollow portion 24 interposed therebetween. At this time, the flame shield 60 is disposed at a position that does not hinder expansion of the thermally expandable members 26a and 26b of the reinforcing member 27 toward the gap G (see FIGS. 5 and 7). The reinforcing plate portion 60b of the flame shield 60 serves as a guide for positioning the mounting position of the mounting stay 28a of the arm 28 (see FIG. 7).

  In the flame shield 60, the flame shield plate portion 60a is disposed along the direction of finding from the inner surface 48 of the vertical frame 14c to the outer surface 50 of the vertical rod 34c of the shoji 16 so that the flame shield plate portion 60a has a gap G. It is interposed in the gap G so as to block a part (see FIGS. 5 and 8). As a result, the thermally expandable member 26f provided on the flame shield plate portion 60a is arranged so as to expand toward the gap G. In the case of this embodiment, the flame shield plate portion 60a and the thermally expandable member 26f are arranged on the outdoor-side finding surface of the protruding portion 20 of the vertical frame 14c serving as a door to the shoji 16 and are therefore hidden from the indoor side. . The thermally expandable member 26f may be provided on the prospective surface of the reinforcing plate 60b instead of the flame shield plate 60a (see the thermally expandable member 26f indicated by a two-dot chain line in FIG. 5), or may be provided on both. Good.

  As shown in FIGS. 7 and 8, the flame shield 60 is located at a position avoiding the welded portion 64 formed at the joint between the vertical frame 14 c and the upper frame 14 a, specifically about several mm from the welded portion 64. It is arranged at a separated position. Normally, the welded portion 64 has a concavo-convex shape due to the welded resin. Therefore, the flameproof fitting 60 can be stably rattled by arranging the flameproof fitting 60 at a position that does not interfere with the welded portion 64. It can be fixed without mounting.

  When the joinery 10 configured as described above receives heat from a fire or the like, the resin-made opening frame 14 and the housing 34 are softened or burned out, and the shoji 16 is warped and the gap G is enlarged. There is a case. In particular, since the joinery 10 of the present embodiment is horizontally long as shown in FIG. 1, the amount of thermal warpage of the upper and lower ridges 34 a and 34 b that are upper and lower ridges is large, and the amount of expansion of the gap G is also large.

  However, in the joinery 10, since the vertical frames 14c and 14d fixed to the casing 12 to the face material 32 are connected by metal parts as described above, the shoji 16 and the face material 32 are removed. Is prevented. Further, in the joinery 10, in a portion other than the periphery of the arm 28, first, the thermally expandable member 26 e provided on the prospective surface of the vertical rod 34 c and 34 d expands to close the gap G, and then the thermally expandable members 26 a to 26 d expand. Thus, the gap G can be closed more reliably.

  On the other hand, since the inner surfaces 48 of the vertical frames 14c and 14d are covered with the mounting stay 28a around the arm 28, there is a concern that the expansion of the one heat-expandable member 26a provided on the reinforcing member 27 is insufficient. Further, because of the notch 27a provided in the reinforcing member 27, the other thermally expandable member 26b provided in the reinforcing member 27 cannot be extended to the back side of the mounting stay 28a (FIGS. 7 and 8). reference).

  However, in the joinery 10, since the flame shield plate 60a of the flame shield metal fitting 60 closes the gap G and the arm 28 or the mounting stay 28a which is the metal fitting on one end side in a position where the flame shield plate portion 60a overlaps the arm 28, the shoji 16 is large. Even when heat warps, the gap G can be prevented from becoming a flame or a heat through-hole, and sufficient fireproof performance is achieved even though the structure is composed of the resin opening frame 14 and the resin housing 34. Can be secured. Moreover, since the flame shield 60 is inserted into the hollow portion 24 of the opening frame 14 and fixed to the metal reinforcing member 27 fixed to the housing 12, the opening frame 14 is softened by a fire or the like. Or even if it is a case where it burns down, it does not fall off, and its fireproof performance can be maintained.

  Furthermore, since the thermally expandable member 26f is provided in the flame shield plate portion 60a of the flame shield metal fitting 60, the gap G can be more reliably closed by the expansion of the thermally expandable member 26f. More specifically, when the joinery 10 receives heat from a fire or the like, first, in the vicinity of the arm 28, the thermally expandable member 26e provided on the prospective surfaces of the vertical rods 34c and 34d and the flame shield 60 are provided. The thermally expandable member 26f expands and closes the gap G. Subsequently, when the vertical frames 14c and 14d and the vertical rods 34c and 34d are burned out, the thermally expandable members 26a to 26d provided on the reinforcing members 27 and 45 expand after a while from the expansion of the thermally expandable members 26e and 26f. Thus, the gap G is closed more securely. As a result, the gap G between the opening frame 14 and the housing 34 can be closed for a long time by the expanded thermally expandable members 26a to 26f, and the passage of flame and heat in the gap G is long. Time can be prevented.

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

  For example, although the reinforcing material 27 and the mounting plate 30 are provided separately in the above embodiment, the reinforcing material 27 itself may serve as the mounting plate of the mounting stay 28a without providing the mounting plate 30. In the above embodiment, the sliding window joinery 10 is illustrated, but the present invention includes, for example, an upper frame 14a and a lower frame 14b which are upper and lower horizontal frames, and an upper frame 34a and a lower frame 34b which are upper and lower horizontal frames. The present invention is also applicable to a vertical sliding window joiner that is connected by an arm 28.

  DESCRIPTION OF SYMBOLS 10 Joinery, 12 Frame, 12a Opening part, 14 Opening frame, 14a Upper frame, 14b Lower frame, 14c, 14d Vertical frame, 15 Fixing tool, 16 Shoji, 18 Shoji placement part, 20, 40 Protruding part, 24, 41, 42 hollow part, 25, 27, 43, 44, 45 reinforcing material, 26, 26a to 26f thermal expansion member, 27a notch, 28 arm, 28a, 28b mounting stay, 30 mounting plate, 32 face material, 34 housing , 34a, 34aA, 34aB Upper rod, 34b, 34bA Lower rod, 34c, 34d Longitudinal rod, 36 Face material arrangement part, 38 Press edge, 48 Inner surface, 50 Outer surface, 52 Mounting bracket, 53-56, 58 Connecting tool, 57 Dropping Prevention bracket, 60 Flame shield bracket, 60a Flame shield plate portion, 60b Reinforcement plate portion, 60c Fixing plate portion, 62 Mounting tool, 64 Welded portion, G gap

Claims (7)

The resin-made opening frame fixed to the building housing and the housing constituting the resin-made shoji are connected by an arm, and the housing is moved in the expected direction of the opening frame via the arm. It is a fitting that opens and closes the shoji with respect to the opening frame,
At least one of the vertical frame and the horizontal frame of the opening frame is provided with a hollow portion extending in the longitudinal direction thereof, and the hollow reinforcing portion is a metal reinforcing material fixed to the casing. Is inserted,
The arm includes a mounting plate disposed in the hollow portion or a metal mounting stay connected to the reinforcing member with a plate thickness portion of the opening frame interposed therebetween, and the opening frame is opposed to the housing. Mounted and fixed to the inner surface of
At a position overlapping with the mounting stay in the longitudinal direction of the inner surface of the opening frame, the plate is fixed to the reinforcing material with a plate thickness portion of the opening frame interposed between the opening frame and the housing. A joinery characterized in that a flameproof metal fitting is provided in the gap in the direction of finding formed in the. The joinery according to claim 1,
The said flame-proof metal fitting has a flame-shielding board part protruded along the finding direction which goes to the said housing from the inner surface of the said opening frame. In the joinery of claim 2,
The said flame shield metal fitting has the reinforcement board part bent from the flame shield board part, The fitting characterized by the above-mentioned. In the joinery according to claim 2 or 3,
At least the flame shield plate portion or the reinforcing plate portion is provided with a first thermally expandable member that expands toward the gap when heated. In the joinery according to any one of claims 2 to 4,
The opening frame has a prospective surface that is the inner surface to which the attachment stay is attached and fixed, and a finding surface that becomes a door to the shoji by projecting from the prospective surface toward the shoji,
The flame shield metal fitting includes the flame shield plate portion disposed on the finding surface, a fixed plate portion that is bent from the flame shield plate portion and disposed on the prospective surface and fixed to the reinforcing material. Joinery characterized by having. In the joinery according to any one of claims 1 to 5,
The opening frame has a welded portion that joins the vertical frame and the horizontal frame by welding,
The joinery characterized in that the flame barrier metal fitting is disposed at a position where it does not interfere with the welded portion. In the fitting according to any one of claims 1 to 6,
The fitting is characterized in that the reinforcing member is provided with a second thermally expandable member that expands toward the gap when heated.