JP6700967B2 - Joinery - Google Patents

Description

  The present invention relates to a fitting in which an edge portion of a face material is accommodated and supported by an opening groove of a frame member.

  For example, in fitting fitting windows, a structure in which the outer peripheral edge of a face material such as double glazing is housed and supported by an opening groove provided on the inner periphery of the opening frame, or a face material is formed by the opening groove provided on the inner periphery of the frame. There is a configuration in which a shoji that accommodates and supports the outer peripheral edge portion of is supported by an opening frame. Further, for example, a fitting for a sliding window or a sliding window has a structure in which an opening frame is used to support a shoji that accommodates and supports an outer peripheral edge portion of a face member by an opening groove provided in an inner circumference of a frame so as to be openable and closable.

  In such a fitting, a backup material and a sealing material may be provided between the opening frame that is the frame member or the opening groove of the frame and the face material to hold the face material or ensure watertightness ( For example, see Patent Document 1).

JP, 2015-175152, A

  By the way, in the case where the fittings as described above are fireproof, it is required to have a fireproof performance capable of ensuring a closed state for a certain period of time or more during a fire and preventing the passage of flames and heat inside and outside the room. However, when the frame material forming the face material and the opening groove is softened and deformed due to the high temperature of the fire or the seal material is damaged, the backup material may fall and the face material may drop from the opening groove. Then, a through hole that serves as a passage for flames and heat is formed along the indoor/outdoor direction of the fitting, and it becomes impossible to secure sufficient fire prevention performance.

  The present invention has been made in view of the above problems of the conventional art, and an object of the present invention is to provide a fitting that can secure high fireproof performance.

  The fitting according to the present invention is a fitting comprising a frame member in which an edge portion of a face material is housed in an opening groove, and a backup material is provided between the pair of side walls of the opening groove and the face material. A heat-expandable member that expands when heated is disposed between at least one of the side walls and the backup material facing the side wall.

  With such a configuration, when the fitting receives the flame or heat of a fire, the heat-expandable member expands and presses and crushes the backup material. Thereby, the face material can be firmly held through the crushed backup material. Therefore, even if the opening frame is softened or deformed due to the heat of fire, the backup material is prevented from falling, the edge of the face material is prevented from falling out of the opening groove, and high fire protection performance is provided. Can be secured.

  In the fitting according to the present invention, a holding component may be arranged between the thermally expandable member and the backup material. As a result, when the heat-expandable member expands during a fire of the fitting, the expanded heat-expandable member causes the holding component to be pressed and moved to crush the backup material. As a result, the face material can be held by the holding component via the crushed backup material, and the face material can be more reliably prevented from falling off.

  In the fitting according to the present invention, the holding component is configured to be supported by the frame member by using a guide member that is inserted through a hole or a notch extending in the opposing direction of the heat-expandable member and the backup material. You may. Then, when the holding component is pressed by the heat-expandable member expanded by the heat of the fire, the holding component smoothly moves toward the backup material under the guide action of the guide member. Therefore, the backup component can be stably crushed by the holding component to hold the face material.

  In the fitting according to the present invention, the holding component is formed with the hole portion or the notch portion, and a support portion that is supported by the guide member with respect to a bottom wall of the opening groove and intersects from the support portion. It may be configured to have a holding portion that extends in the direction of the arrow and that is disposed between the thermally expandable member and the backup material. Then, the expanded heat-expandable member presses the holding part, so that the holding part can hold the backup material and the face material while smoothly moving the holding part along the bottom wall via the supporting part. it can.

  In the fitting according to the present invention, the guide member may be attached and fixed to the bottom wall in a state where the support portion and the resin spacer member are sandwiched between the guide wall and the bottom wall. Good. In this case, the holding component can be supported against the bottom wall without rattling through the spacer member in normal times when it is not affected by fire. On the other hand, since the spacer member is melted or burnt out in the event of a fire, the expanded heat-expandable member can smoothly press and move the holding component.

  In the fitting according to the present invention, the support portion may be configured to be adhesively held to the bottom wall or the guide member. In this case, the holding component can be supported against the bottom wall without rattling through the spacer member in normal times when it is not affected by fire. On the other hand, in the event of a fire, the adhesive melts or burns out, so that the holding component can be smoothly pressed and moved by the expanded heat-expandable member.

  In the fitting according to the present invention, the face material is a multi-layer glass including at least one fire-resistant glass, and the thermal expansion member is at least for a backup material that is in contact with an edge side surface of the fire-resistant glass. It may be arranged to face each other. This makes it possible to reliably hold the refractory glass, which does not easily collapse during a fire, with the backup material, and to obtain even higher fire protection performance.

  In the fitting according to the present invention, the frame member is a configuration in which an upper frame member, a lower frame member, and left and right vertical frame members are framed, and at least one of the upper frame member and the left and right vertical frame members, The thermal expansion member and the backup material may be arranged to face each other. That is, by disposing the heat-expandable member and the backup material so as to face each other by at least the upper frame member or the left and right vertical frame members, it is possible to prevent the face material from falling off from the opening frame during a fire.

  According to the present invention, it is possible to prevent the backup material from dropping and to prevent the edge portion of the face material from falling out of the opening groove at the time of fire, and it is possible to secure high fire protection performance.

FIG. 1 is a vertical cross-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 the holding component. FIG. 4 is a diagram showing a mounting state of the holding component inside the opening groove, FIG. 4(A) is a diagram showing a normal mounting state of the holding component, and FIG. It is a figure which shows the operating state of the holding component of FIG. FIG. 5 is a vertical cross-sectional view showing the fireproof structure in the upper frame when the fitting is exposed to a fire, and FIG. 5A is a view showing a state in which the spacer member is burned down by the heat of the fire. FIG. 5B is a diagram showing a state in which the thermally expandable member has expanded from the state shown in FIG. 5A. FIG. 6 is a diagram showing a mounting state of the holding component according to the first modification inside the opening groove, and FIG. 6A is a diagram showing a normal mounting state of the holding component. B) is a diagram showing an operating state of the holding component at the time of fire. 7: is a figure which shows the attachment state of the holding component which concerns on a 2nd modification inside an opening groove, FIG.7(A) is a figure which shows the normal attachment state of a holding component, FIG. B) is a diagram showing an operating state of the holding component at the time of fire. FIG. 8 is a vertical cross-sectional view showing a configuration in which the support portion of the holding component is attached and supported to the bottom wall by using an adhesive, and FIG. 8A is a diagram showing a normal attachment state of the holding component, FIG. 8B is a diagram showing a state in which the adhesive is burned down by the heat of fire. FIG. 9 is an enlarged vertical cross-sectional view of the vicinity of the upper frame of the fitting according to the modification.

  Preferred embodiments of the fitting according to the present invention will be described below in detail with reference to the accompanying drawings.

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

  As shown in FIGS. 1 and 2, the fitting 10 includes an opening frame 12 that is fixed to a building opening of a building, and a face material 14 that is supported on the inner circumference of the opening frame 12.

  The opening frame 12 includes an upper frame (upper frame member) 12a, a lower frame (lower frame member) 12b, and left and right vertical frames (vertical frame members) 12c and 12d, which form a surface around the inner periphery thereof. It is a frame member having a rectangular opening for supporting the material 14. The upper frame 12a, the lower frame 12b, and the vertical frames 12c and 12d are extruded shape members made of metal such as aluminum. Each of the frames 12a to 12d may be made of an extruded shape material of resin such as vinyl chloride resin, or may have a composite structure in which a resin element and a metal element are used in combination. Each of the frames 12a to 12d is fixed to the skeleton opening of the building using a fixture such as a nail or a screw.

  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 figure), and the prospective surface refers to the plane extending along the prospective direction. Further, the finding direction is a direction orthogonal to the prospective direction, and in the case of the vertical frames 12c and 12d that are long in the vertical direction, the vertical direction (the direction indicated by arrow Y in the figure) that is the longitudinal direction thereof In the case of the upper frame 12a and the lower frame 12b which are long in the left-right direction, the term means the left-right direction (direction indicated by arrow X in the figure) which is the longitudinal direction. Further, the finding surface means a plane along the finding direction.

  The upper frame 12a has an inward facing prospective surface 16 provided with an opening groove 18 in which the upper edge of the face member 14 is accommodated and supported. The opening groove 18 has a substantially U-shaped cross section, and has a pair of side walls 18a and 18b protruding downward from the inside and outside of the prospective surface 16 and a bottom wall 18c between the side walls 18a and 18b. The outdoor side wall 18a is configured by a protruding piece that projects from the outdoor side end of the prospective surface 16, and the indoor side wall 18b is configured by a ridge 20 attached to the indoor side portion of the prospective surface 16. The bottom wall (top wall) 18c is formed by the prospective surface 16 of the upper frame 12a.

  The lower frame 12b and the vertical frames 12c and 12d also have an opening groove 18 in the inward facing prospective surface 16. That is, the lower frame 12b and the vertical frames 12c, 12d accommodate and support the lower edge portion and the left and right side edge portions of the face member 14 by the opening groove 18 formed by the pair of side walls 18a, 18b and the bottom wall 18c, respectively. There is. In the case of the present embodiment, the lower frame 12b is provided not with the ridge 20 but with the side wall 18b on the protruding piece protruding from the indoor side toward the outdoor side.

  The face material 14 is a double-layered double-layer glass in which a pair of glass plates 14 a and 14 b are arranged face-to-face via a spacer 22. In the present embodiment, at least the glass plate 14a arranged on the outdoor side is a thick glass plate with a net that is fireproof glass, and the glass plate 14b arranged on the indoor side is a thin glass plate such as float glass. The fireproof glass on the outdoor side may be a fireproof glass having a fireproof property capable of withstanding flames and heat for a certain time or longer, such as heat-resistant tempered glass having a structure other than a net. The face material 14 may have a structure in which three or more glass plates are laminated.

  The face material 14 has its four peripheral edges housed and supported inside the opening grooves 18 of the respective frames 12a to 12d.

  Specifically, the upper edge portion of the face material 14 is housed in the opening groove 18 of the upper frame 12a, and the indoor and outdoor side surfaces (edge portion side surfaces) 24a and 24b of the side material 14 and the pair of side walls 18a and 18b, respectively. It is held by the backup materials 26a and 26b sandwiched therebetween. The side surface 24a is a surface of the outdoor glass plate 14a facing the outdoor side, and the side surface 24b is a surface of the indoor glass plate 14b facing the indoor side. The backup materials 26a and 26b are, for example, sponge-like members and extend along the edge of the face material 14. In addition, the opening side (lower side) of each backup material 26 a, 26 b is sealed by a sealing material 28. The sealing material 28 is, for example, a regular or irregular sealing material.

  Also for the lower frame 12b and the vertical frames 12c, 12d, the backup materials 26a, 26b and the sealing material 28 are provided between the side walls 18a, 18b and the side surfaces 24a, 24b of the respective opening grooves 18 to accommodate and support the surface material 14. ing. On the bottom wall 18c of the opening groove 18 of the lower frame 12b, a setting block 29 that supports the lower end surface of the face material 14 is provided.

  By the way, for example, when the fitting 10 is exposed to a fire flame or heat from the outside, the side wall 18a of the upper frame 12a may be softened/deformed or the sealing material 28 may be damaged. Then, the backup material 26a may drop, the upper edge portion of the face material 14 may drop from the opening groove 18, and the face material 14 may drop from the opening frame 12. The drop of the face material 14 from the opening groove 18 may occur in the left and right vertical frames 12c and 12d as in the case of the upper frame 12a.

  Therefore, next, the fireproof structure of the fitting 10 will be described.

  First, the fireproof structure of the upper frame 12a will be described.

  As shown in FIG. 1, the opening groove 18 of the upper frame 12a is provided with a thermally expandable member 30 and a holding component 32.

  The heat-expandable member 30 is a non-combustible or flame-retardant member that expands by heat, and is, for example, a heat-expandable graphite-containing foam material. The heat-expandable member 30 is attached to the inner surface of the side wall 18a on the outdoor side of the opening groove 18 and extends in the longitudinal direction (X direction) of the side wall 18a. The heat-expandable member 30 is arranged to face the outdoor-side backup material 26a with the holding component 32 sandwiched therebetween.

  FIG. 3 is a configuration diagram of the holding component 32.

  As shown in FIGS. 3A and 3B, the holding component 32 includes a thin plate-shaped supporting portion 32a and a thin plate-shaped holding portion 32b extending in a direction orthogonal to the end portion of the supporting portion 32a. The metal plate has a substantially L-shaped cross section. The support portion 32a is formed with a pair of notches 32c, 32c formed near both ends in the longitudinal direction. The cutout portion 32c is a slit formed so as to cut out from the end portion of the support portion 32a on the side opposite to the holding portion 32b side to the substantially center of the support portion 32a in the lateral direction.

  The holding component 32 is formed, for example, by bending one metal plate by approximately 90 degrees or by joining the end portions of two metal plates to each other in a substantially L-shaped cross section. The crossing angle between the support portion 32a and the holding portion 32b may be other than a right angle. The holding component 32 is a metal fitting made of flame-retardant or non-flammable metal such as steel or stainless steel. The holding component 32 may be made of resin or the like as long as it is made of a flame-retardant or non-flammable material. The holding component 32 is a component shorter than the dimension of the upper frame 12a in the longitudinal direction, and, for example, about two sheets are arranged in the longitudinal direction of the opening groove 18 of the upper frame 12a with a predetermined interval.

  FIG. 4 is a view showing a mounting state of the holding component 32 inside the opening groove 18, and shows a state in which the bottom wall 18c of the opening groove 18 is viewed from the front. Here, FIG. 4A shows a normal mounting state of the holding component 32, and FIG. 4B shows an operating state of the holding component 32 at the time of fire.

  As shown in FIGS. 1 and 4(A), in the holding component 32, the support portion 32a is attached and supported to the bottom wall 18c by using the guide screw (guide member) 34 in the opening groove 18 of the upper frame 12a. The holding portion 32b is installed in a state of protruding and hanging in the opening groove 18. The guide screw 34 is inserted into each of the pair of notches 32c, 32c formed in the support portion 32a, and is screwed into the female screw portion provided on the bottom wall 18c. A thin spacer member 36 made of resin is sandwiched between the support portion 32a and the head portion of the guide screw 34 (see FIG. 1). By providing the spacer member 36, the support portion 32a can be attached and supported to the bottom wall 18c without rattling by the guide screw 34. The spacer member 36 may be sandwiched between the support portion 32a and the bottom wall 18c.

  The holding portion 32b hanging in the opening groove 18 is arranged so as to be sandwiched between the inner surface of the side wall 18a and the backup material 26a (see FIG. 1). That is, the holding portion 32b is arranged between the thermal expansion member 30 and the backup material 26a. In the case of the present embodiment, when the holding component 32 is in the normal mounting state in which it is not affected by fire as shown in FIG. 1, the holding portion 32b covers the outdoor side finding surface of the backup material 26a in the vertical direction, It extends to a position where it does not reach the sealing material 28.

  The guide screw 34 fastens and fixes the support portion 32a to the bottom wall 18c at a position close to the opening end side of the cutout portion 32c (see FIG. 4A). In other words, when the holding portion 32b is positioned by contacting the outdoor side finding surface of the backup material 26a, the guide screw 34 is arranged at a position closer to the opening end side of the cutout portion 32c as shown in FIG. 4(A). . Therefore, in the fitting 10, for example, when the spacer member 36 is melted or burned down by the heat of fire, the head portion of the guide screw 34 and the bottom wall 18c are in a loosely fastened state in which they can move relative to each other. Then, the holding component 32 enters a floating state in which the holding component 32 is movable toward the indoor side in the prospective direction along the notch 32c under the guide action of the guide screw 34 (see also FIG. 4B).

  In the present embodiment, the thermally expandable member 38 is provided on the inner surface (inside surface of the room) of the holding portion 32b of the holding component 32. The heat-expandable member 38 is attached along the longitudinal direction of the holding portion 32b. The heat-expandable member 38 is a non-combustible or flame-retardant member that expands due to heat similarly to the heat-expandable member 30, and is, for example, a heat-expandable graphite-containing foam material. The heat-expandable member 38 complements the portion where the expanded heat-expandable member 30 is blocked by the holding portion 32b (the space on the indoor side of the holding portion 32b).

  The vertical frame 12c, 12d has a fire protection structure similar to that of the upper frame 12a. That is, as shown in FIG. 2, in the vertical frames 12c and 12d as well, the thermal expansion members 30 and 38, the holding component 32, the guide screw 34, and the spacer member 36 are provided in the respective opening grooves 18. There is.

  Next, the operation of preventing the face material 14 from falling off by the thermally expandable member 30 and the holding component 32 will be described.

  FIG. 5 is a vertical cross-sectional view showing a fireproof structure in the upper frame 12a when the fitting 10 is exposed to a fire, and FIG. 5A shows a state in which the spacer member 36 is burned down by the heat of the fire. FIG. 5(B) shows a state in which the thermally expandable member 30 has expanded from the state shown in FIG. 5(A). Hereinafter, the operation of preventing the face material 14 from falling off on the upper frame 12a at the time of a fire will be described as a representative.

  For example, when the fitting 10 receives the flame or heat of a fire generated on the outside of the room, first, the resin spacer member 36 is melted or burned (see FIG. 5A). Then, a gap corresponding to the thickness of the burned spacer member 36 is created between the head of the guide screw 34 and the bottom wall 18c. Therefore, the holding component 32 is in a floating state in which it can be moved to the inside of the room along the notch 32c under the guide action of the guide screw 34 (see also FIG. 4A).

  Furthermore, the heat-expandable members 30 and 38 expand at timings before and after the spacer member 36 is burned. At this time, the thermally expansive member 30 provided on the inner surface of the side wall 18a expands toward the indoor side in the prospective direction toward the backup material 26a and the holding portion 32b. Therefore, a pressing force is applied to the holding portion 32b by the expansion force of the heat-expandable member 30, and the holding component 32 moves to the inside of the room under the guide action of the guide screw 34 (FIG. 4(B) and FIG. 5( See B)). As a result, the backup material 26a is crushed between the holding portion 32b that moves to the indoor side and the side surface 24a of the surface material 14. That is, the holding portion 32b of the holding component 32 moves to the holding position where the backup material 26a is crushed and the side surface 24a of the face material 14 is firmly held.

  Thus, in the opening groove 18 of the upper frame 12a and the vertical frames 12c, 12d provided with the holding component 32, the holding member 32b crushes the backup material 26a and firmly holds the face material 14 at the time of fire. As a result, even if the side wall 18a is softened/deformed by the heat of fire or the seal material 28 is damaged, the backup material 26a does not drop. Therefore, it is possible to prevent the upper edge portion and the side edge portion of the face material 14 from falling off from the opening groove 18 and the face material 14 from falling off. Further, the inside of the opening groove 18 is filled with the expanded heat-expandable members 30 and 38 with almost no gap, and the face material 14 is also firmly held, so that the opening groove 18 serves as a through hole for flames and heat inside and outside the room. It is also prevented.

  Although the notch 32c is guided by the guide screw 34 in the above description, the notch 32c may be replaced with another shape or hole as long as it can guide the movement of the holding component 32 in the prospective direction.

  For example, FIG. 6 is a diagram showing a mounting state of the holding component 40 according to the first modification inside the opening groove 18. As shown in FIGS. 6(A) and 6(B), this holding component 40 has a long hole (hole portion) 32d instead of the notch 32c of the holding component 32 shown in FIGS. 3 and 4. . A pair of long holes 32d are formed near both ends in the longitudinal direction of the support portion 32a, and are long holes in the prospective direction. Note that in FIG. 6A, in order to clearly show the shape of the long hole 32d, the guide screw 34 that is inserted into one of the long holes 32d is omitted.

  For example, FIG. 7 is a diagram showing a mounting state of the holding component 42 according to the second modification inside the opening groove 18. As shown in FIGS. 7A and 7B, the holding component 42 has a cutout portion 32e instead of the cutout portion 32c of the holding component 32 shown in FIGS. 3 and 4. The cutout portion 32e is a cutout-shaped corner portion formed so as to cut out both corners of the end portion of the support portion 32a on the side opposite to the holding portion 32b side to substantially the center in the lateral direction of the support portion 32a. is there. Note that in FIG. 7A, in order to clearly show the shape of the cutout 32e, the guide screw 34 that is inserted into the one long hole 32d is omitted.

  In the above description, the resin spacer member 36 is provided to prevent rattling of the holding component 32 (40, 42) in the normal mounting state where the fitting 10 is not affected by fire. An attachment structure other than the spacer member 36 may be used as long as the holding parts 32 (40, 42) can be moved during a fire.

  For example, FIG. 8 is a vertical cross-sectional view showing a configuration in which the support portion 32a of the holding component 32 (40, 42) is attached and supported to the bottom wall 18c using the adhesive 44. FIG. 8(A) shows a normal mounting state of the holding parts 32 (40, 42), and FIG. 8(B) shows a state in which the adhesive 44 is burned down by the heat of fire.

  As shown in FIG. 8A, in the holding component 32 (40, 42) of this configuration example, a gap in which the holding component 32 can be moved is previously provided between the support portion 32a and the head of the guide screw 34. On the other hand, the support portion 32a is adhesively fixed to the bottom wall 18c using the adhesive 44. For this reason, the holding component 32 can be attached and supported to the bottom wall 18c without rattling in a normal time when not exposed to fire.

  Then, as shown in FIG. 8B, when the fitting 10 receives the flame or heat of a fire, first, the adhesive 44 is melted and burned down, and the holding component 32 becomes movable. As a result, the expanded thermal expansion member 30 presses and moves the holding portion 32b, and the backup material 26a can be crushed between the holding portion 32b and the side surface 24a of the surface material 14.

  In the above description, the holding parts 32 (40, 42) are pressed and moved by the heat-expandable member 30 expanded by the heat of the fire, and the backup material 26a is crushed to hold the face material 14, but the holding parts 32 ( 40, 42) can be omitted.

  FIG. 9 is an enlarged vertical cross-sectional view of the vicinity of the upper frame 12a of the fitting 10A according to the modification.

  In the fitting 10A shown in FIG. 9, instead of omitting the holding parts 32 (40, 42) from the fitting 10 shown in FIG. 1, the thermally expandable member 30 provided on the inner surface of the side wall 18a and the face material 14 on the outdoor side are provided. The facing area with the backup material 26a that holds the side surface 24a is further enlarged. That is, in the case of the fitting 10A, the amount of overlap between the thermal expansion member 30 and the backup material 26a is larger than that in the case of the fitting 10 shown in FIG.

  Therefore, when the fitting 10A receives a flame or heat of a fire, the expanded material 30 is directly pressed to crush the backup material 26a, thereby firmly holding the face material 14. can do. Of course, also in the fitting 10 shown in FIG. 1, the thermal expansion member 30 and the backup material 26a overlap and face each other. Therefore, even if the holding parts 32 (40, 42) are omitted from the fitting 10, the backup material 26a can be sufficiently crushed by the thermally expansive member 30 to hold the face material 14, but as shown in FIG. A larger effect can be obtained with a large overlap amount. The support portion 32a may be fixed to the guide screw 34 by an adhesive 44.

  As described above, the fitting 10 (10A) according to the present embodiment accommodates the edge portion of the face material 14 inside the opening groove 18, and the pair of side walls 18a and 18b of the opening groove 18 and the edge portion of the face material 14. The opening frame 12 that is a frame member that supports the face material 14 by providing backup materials 26a and 26b between the side surfaces 24a and 24b is provided. A thermally expansive member 30 that expands when heated is disposed between one side wall 18a and the backup material 26a that faces the side wall 18a.

  Therefore, when the fitting 10 (10A) receives the flame or heat of a fire, the thermally expansive member 30 expands and presses and crushes the backup material 26a arranged opposite thereto. Thereby, the face material 14 can be firmly held via the crushed backup material 26a. Therefore, even if the side wall 18a is softened/deformed by the heat of the fire or the seal material 28 is damaged, the backup material 26a is prevented from falling, and the edge portion of the face material 14 is removed from the opening groove 18. It is possible to ensure high fire protection performance.

  In this case, in the fitting 10, the holding component 32 (40, 42) is arranged between the heat-expandable member 30 and the backup material 26a which are arranged to face each other. Therefore, when the thermally expandable member 30 expands during a fire of the fitting 10, the expanded thermally expandable member 30 presses and moves the holding parts 32 (40, 42) to crush the backup material 26a. As a result, the face material 14 can be held by the holding components 32 (40, 42) via the crushed backup material 26a, and the face material 14 can be more reliably prevented from falling off.

  The holding component 32 (40, 42) of the fitting 10 (10A) is opened using a guide screw 34 having a long hole 32d extending in the opposing direction of the heat-expandable member 30 and the backup material 26a or a notch 32c, 32e. It is supported by the frame 12. Then, when the holding component 32 (40, 42) is pressed by the heat-expandable member 30 expanded by the heat of the fire, the holding component 32 (40, 42) is smoothly guided by the guide screw 34 and the backup material 26a. Move towards. Therefore, the holding member 32 (40, 42) can stably crush the backup material 26a and hold the face material 14.

  It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that the present invention can be freely modified without departing from the gist of the present invention.

  In the above-described embodiment, the fitting and killing window in which the face material 14 is supported by the opening frame 12 is illustrated, but the present invention is a fitting and killing method in which the shoji supporting the face material by the frame serving as a frame member is fitted and killed inside the opening frame. It can also be applied between the window material and the frame of the kill window. Further, the present invention can be applied not only to the fitting and killing window but also to, for example, a face material and a frame of a fitting such as an opening window or a sliding window in which a shoji screen can be opened and closed.

  In the above-described embodiment, the holding component 32 (40, 42) is composed of a component shorter than the backup material 26a, but the holding component 32 (40, 42) extends over the found dimensions of the backup material 26a and the opening frame 12. It may be composed of existing long parts. Further, when the holding component 32 (40, 42) is configured by such a long component, the thermal expansion member 30 is attached to the outdoor side surface or the indoor side surface of the holding portion 32b of the holding component 32 (40, 42). You may wear it.

  In the above embodiment, the guide screw 34 is inserted through the notch 32c provided in the holding component 32 (40, 42), but the holding component 32 (40, 42) is supported instead of the guide screw 34. A pin serving as a guide member may be protruded from the portion 32a, and the pin may be inserted into a notch 32c provided in the bottom wall 18c on the side of the opening frame 12 to guide the pin.

  The holding component 32 (40, 42) may have a substantially U-shaped cross section in which, for example, the support portion 32a and the holding portion 32b are arranged in parallel and face each other and a bridge-shaped plate portion connects them. In the case of this configuration, it is advisable to support the support portion 32a on the inner surface of the side wall 18a by using the guide screw 34 so as to be movable in the expected direction in the event of a fire.

  The heat-expandable member 30 and the holding components 32 (40, 42) may be provided on the indoor side of the opening frame 12 or on both indoor and outdoor sides. Further, the thermal expansion member 30 and the holding parts 32 (40, 42) can be provided with the effect of preventing the face material 14 from falling off even if provided only on the upper frame 12a or on the left and right vertical frames 12c, 12d.

  10,10A joinery, 12 opening frame, 12a upper frame, 12b lower frame, 12c, 12d vertical frame, 14 face material, 14a, 14b glass plate, 16 prospective surface, 18 opening groove, 18a, 18b side wall, 18c bottom wall, 24a, 24b Side surface, 26a, 26b Backup material, 28 Seal material, 30,38 Thermal expansion member, 32, 40, 42 Holding part, 32a Supporting part, 32b Holding part, 32c, 32e Notch part, 32d long hole, 34 Guide screw, 36 spacer member, 44 adhesive

Claims (6)

A fitting comprising a frame member in which an edge portion of a face material is housed in an opening groove and a backup material is provided between a pair of side walls of the opening groove and the face material,
A thermally expansive member that expands when heated is disposed between at least one side wall of the pair of side walls and the backup material facing the side wall ,
A holding component is arranged between the heat-expandable member and the backup material,
The fitting is characterized in that the holding component is supported by the frame member by using a guide member that is inserted through a hole or a notch extending in the opposing direction of the heat-expandable member and the backup material . The fitting according to claim 1 ,
The holding component is formed with the hole or the notch and is supported by the guide member with respect to the bottom wall of the opening groove, and extends in a direction intersecting with the support, A fitting comprising an expandable member and a holding portion arranged between the backup material. The fitting according to claim 2 ,
The fitting is attached and fixed to the bottom wall in a state in which the support portion and the resin spacer member are sandwiched between the guide member and the bottom wall. The fitting according to claim 2 ,
The fitting is characterized in that the support portion is adhesively held to the bottom wall or the guide member. The fitting according to any one of claims 1 to 5 ,
The face material is a double glazing containing at least one refractory glass,
The fitting, wherein the heat-expandable member is arranged to face at least a backup material that is in contact with an edge side surface of the refractory glass. The fitting according to any one of claims 1 to 5 ,
The frame member is a configuration in which an upper frame member, a lower frame member and left and right vertical frame members are framed,
The fitting, wherein the heat-expandable member and the backup material are arranged to face each other in at least one of the upper frame member and the left and right vertical frame members.

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