JP2018141311A - Fireproof fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel fireproof fitting in which a glass pane arranged on an indoor side or an outdoor side does not move even when a flame causes the glass pane arranged on the indoor side or the outdoor side to break and fall, thereby effectively preventing the flame from passing to the indoor side or the outdoor side.SOLUTION: A fireproof fitting includes a specific glass pane 34 arranged inside a frame body 28 and fixed on an innermost side, and another glass pane 33 fixed opposite the specific glass pane 34. At least one of a top end, a left end or a right end of the specific glass pane 34 is extended so as to be closer to an inner peripheral side of the frame body 28 than the top end, the left end or the right end of the another glass pane 33, and an extended portion of the specific glass pane 34 is pinched between a part of the frame body 28 and a pinching member 46 arranged inside the frame body 28.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a fitting such as a window and a door, and more particularly to a fire prevention fitting having a plurality of glass plates and having a fire prevention function.

  Up to now, as for the joinery such as the glass window which closes the opening formed in the building, in order to achieve sound insulation and air tightness, a multi-layer glass window in which a plurality of glass plates are arranged is widely adopted. On the other hand, in order to prevent a flame due to an indoor misfire from being discharged to the outside through the opening, or a flame generated outdoors to enter the indoor through the opening, the fittings have a predetermined flame shield. Sex is required. In particular, when a glass plate is arranged on the joinery, the glass plate is often heated and cracked locally due to the flame and drops off, and the flame is generated from the gap generated by the cracking or dropping off of the glass plate. Risk of intrusion. Moreover, in order to prevent the glass plate from cracking or falling off due to such a flame, a glass plate called a so-called mesh glass having a metal mesh disposed therein may be used. Even if such a mesh glass is broken by a flame, the metal mesh has an effect of preventing the glass from falling off and suppressing the penetration of the flame. A glass plate called fireproof glass has also been proposed. This fire-resistant and heat-resistant glass is a heat-resistant glass obtained by adding special processing or treatment to the float glass used so far for construction. Therefore, conventionally, for the purpose of improving such flame barrier properties, a metal cover is attached to the outer peripheral ends of the left and right sides of the multilayer glass, and an inner peripheral groove is provided in a window frame or the like, and the multilayer glass is provided in the groove. The structure (refer patent document 1) which fits the outer peripheral end of is disclosed. In addition, in the glass holding groove in which the glass plate is held, a reinforcing material in which the edge of the glass plate is arranged inside is arranged, and in this reinforcing material, a receiving member and a thermal expansion material are provided, and in the event of a fire The receiving member prevents the downward movement of the multi-layer glass and the thermal expansion refractory material expands to close the space between the indoor side glass sheet and the reinforcing material. A sash that prevents flame and smoke from communicating between the indoor side and the outdoor side is disclosed (see Patent Document 2).

JP 2012-140785 A Japanese Patent Laying-Open No. 2015-68004

  However, in the fire prevention structure or sash disclosed in each of the above patent documents, when the glass plate is broken by the flame and the broken glass falls off, it is attached to the upper edge or the left and right edges of the glass plate that has been fixed so far. Creates space. For example, in a joinery where double-glazed glass with two glass plates as components is placed, if a flame is emitted from the outdoor side and the glass plate placed on the outdoor side breaks and falls off, On the outside of the glass plate that has been placed, a space that is the same as the thickness of the glass plate that has been placed on the outdoor side is formed, and the remaining glass plate on the indoor side is freely movable due to the presence of the space When the glass plate on the indoor side moves, a gap is created there, and air can move from the indoor side to the outdoor side or from the outdoor side to the indoor side, and the flame passes through this space. . Furthermore, the first glass plate disposed on the most indoor side or the outdoor side, the second glass plate opposed to the first glass plate via the first spacer, and the second glass plate When the double-glazed glass composed of the third glass plate disposed on the most outdoor side or indoor side facing the two spacers is a constituent element, the first glass plate, the first glass plate When all of the spacer, the second glass plate and the second spacer are broken by the flame and dropped, the third glass plate moves over the total length of the dropped glass plate and spacer. It becomes possible to generate a large gap. This does not change even if the third glass plate is the mesh glass or heat-resistant glass. That is, even if the specific glass plate constituting the multi-layer glass is the above-mentioned mesh glass or heat-resistant glass, if the glass plate other than the specific glass plate or the spacer is dropped due to the radiation of the flame, it has dropped off. A space corresponding to the thickness of the glass plate or the spacer is generated, and the specific glass plate is in a state in which the space can be moved. It will be passed indoors.

  Therefore, the present invention has been proposed in order to solve the problem of the fire prevention structure or sash of the joinery having the conventional fire prevention function described above, and the glass plate disposed on the outdoor side or indoor side by the flame is provided. Even if it breaks and falls off, the glass plate placed on the indoor side or the outdoor side does not move, and it is possible to effectively prevent the flame from passing to the indoor side or the outdoor side. The purpose is to provide fire-fitting joinery.

  The present invention has been proposed in order to solve the above problems, and the first invention (the invention according to claim 1) is arranged on the inner side of the frame body, and is the most outdoor side or most In a fire protection fitting comprising a specific glass plate that is a mesh glass or heat-resistant tempered glass plate fixed inside, and another glass plate fixed to face the specific glass plate, At least the upper end or the left end or the right end of the glass plate is extended a predetermined length so as to be closer to the inner peripheral side of the frame body than the upper end or the left end or the right end of the other glass plate, The extended part of the specific glass plate is sandwiched between a part of the frame body and a clamping member disposed in the frame body.

  In the fire prevention fitting according to the first aspect of the present invention, a fire prevention fixture in which a multilayer glass is disposed, and the multilayer glass is a net glass or a heat-resistant tempered glass plate disposed on the most outdoor side or the most indoor side. And a specific glass plate and another glass plate arranged to face the specific glass plate. And the said specific glass plate is arrange | positioned inside the said frame, and is arrange | positioned at either the most outdoor side or the most indoor side. Further, the other glass plate is formed so as to face the specific glass plate, and it may be one or two glass plates facing each other. Therefore, in the present invention, when the specific glass plate is arranged on the most outdoor side, the specific glass plate, the other glass plate (the other glass plate is two sheets) from the outdoor side to the indoor side. In the case, the other glass plates are arranged in the order of each other, and conversely, when the specific glass plate is arranged most indoors, from the indoor side to the outdoor side, They are respectively arranged in the order of a specific glass plate and another glass plate (in the case of two other glass plates, another glass plate).

  In the present invention, at least the upper end or the left end or the right end of the specific glass plate is set to be closer to the inner peripheral side of the frame body than at least the upper end, the left end or the right end of the other glass plate. The length is extended. In other words, the upper end or the left end or the right end of the specific glass plate is not the same position as the upper end or the left end or the right end of the other glass plate, but extends / extends to a position close to the window frame. Has been. Further, the extended portion of the specific glass plate is clamped by a part of the frame and a clamping member arranged in the frame. The shape of the holding member is not particularly limited as long as it is a member having a function of holding a specific glass plate in cooperation with at least a part of the window frame. Further, the extended portion extends so that all three edges of the upper end, the left end, and the right end of the specific glass plate are closer to the frame body than the end edges of the other glass plates. It may be what is being done.

  Therefore, for example, in the case where the specific glass plate is arranged on the indoor side and the other glass plate is arranged on the outdoor side, if a flame is radiated from the outdoor side to the other glass plate, the other The glass plate breaks and falls. When two other glass plates are arranged via a spacer, the first other glass plate arranged on the most outdoor side breaks, and then the second other glass plate or spacer Breaks and falls. Thus, even if the other glass plate is broken and dropped, the extended portion of the specific glass plate is sandwiched between a part of the frame body and the sandwiching member, The specific glass plate does not move or shift in the space where the other glass plate is placed, unlike the conventional fire protection fixture, and the previous placement position or placement state. Can be maintained. Therefore, according to the fire protection fitting according to the present invention, even if another glass plate is cracked and dropped, the specific glass plate does not generate a gap through which the flame passes and effectively flames. Can be prevented.

  Moreover, 2nd invention (invention of Claim 2) is the said 1st invention. Between the said clamping member and the site | part where the said specific glass plate was extended, or the said frame and this specific glass A heating and expanding material that expands when heated is disposed at least between the portion and the extended portion of the plate.

  In the fire protection fitting according to the second aspect of the present invention, at least between the holding member and the part where the specific glass plate is extended or between the frame and the part where the specific glass plate is extended. In any case, a heating expansion material that expands when heated is arranged, so that when the heating expansion material is heated and expanded by the temperature of the flame, the holding member and the specific glass plate By filling the space between the extended portion or between the frame and the extended portion of the specific glass plate, the specific glass plate is further formed between the part of the frame and the sandwiching member. Continue to be in between. Therefore, according to the fire protection fitting according to the second aspect of the present invention, even when the other glass plate is broken and dropped, the specific glass plate moves and no gap through which the flame passes is generated. Further, it is possible to prevent the passage of the flame from the end portion of the more specific glass plate, and it is possible to improve the fire prevention function.

  According to a third invention (invention according to claim 3), in any one of the first and second inventions, one of the engaging members is fixed to the holding member, and the inner side of the frame body. An engaging convex portion is fixed in the vicinity of the position where the clamping member is arranged, and the one engaging member and the engaging convex portion are mounted after the clamping member is arranged in the frame body. Each of the other engaging members has a movement restricting piece for restricting the holding member from moving in a direction away from the specific glass plate. It is characterized by.

  In the fire protection fitting according to the third aspect of the present invention, one engaging member is fixed to the holding member, and an engaging convex portion is provided in the vicinity of the position inside the frame and the holding member. Is fixed, and the one engaging member and the engaging convex portion are respectively engaged with the other engaging member mounted after the holding member is disposed in the frame body. In other words, the engaging projections fixed to the frame are engaged with each other by the other engaging member, and the other engaging member is engaged with one engaging member. The one engaging member is fixed to the clamping member. That is, in the second aspect of the invention, the holding member that holds the specific glass plate with a part of the frame is attached to the frame through the engaging projection and the one and other engaging members. Is engaged. Further, in the third aspect of the invention, the other engaging member has a movement restricting piece for restricting the holding member from moving in a direction away from the specific glass plate.

  Therefore, as described above, even when other glass plates or spacers other than the specific glass plate are dropped due to the radiation of the flame, the holding member is fixed to the specific glass plate by the movement restricting piece. The movement in the direction away from the head is restricted or prevented. In particular, between the holding member and the part where the specific glass plate is extended or between the frame and the part where the specific glass plate is extended, the heating expansion material constituting the second invention is According to the fire-fighting fittings that are arranged, even if the expansion is caused by the heat of the flame, the arrangement position of the clamping members will not change, and will be clamped even more firmly, further improving the fire-proof function Can be made.

  According to a fourth invention (invention of claim 4), in the third invention, the frame body is made of resin, and a metal plate is fixed to the frame body, while the clamping is performed. The member, the one engaging member, the engaging convex portion, and the other engaging member are all made of metal, and the engaging convex portion is directly connected to the metal plate or made of metal. These are connected to each other through the members.

  In the fire protection fitting according to the fourth aspect of the present invention, the frame body is made of resin (formed by resin), and a metal plate is fixed thereto. On the other hand, the clamping member, the one engaging member, the engaging convex portion, and the other engaging member described above are all made of metal, and the engaging convex portion is directly connected to the metal plate. They are connected or connected to each other via a metal member. Therefore, even when the resin frame is heated and partly melts or deforms due to the radiation of the flame, the one engaging member, the engaging convex portion, and the other engaging member are In addition, since it is directly or indirectly connected to the metal plate, it is possible to reliably prevent the sandwiching member from being displaced or dropped. As a result, the specific glass plate is extremely stable. Thus, the original position can be maintained. Note that iron, stainless steel, aluminum and other metals can be used as long as the metal has a melting point relatively higher than the melting point of the resin that is the material of the frame.

  In the fire protection fitting according to the first invention (invention of claim 1), even if the other glass plate is broken and dropped, the extended portion of the specific glass plate is the frame. Since the specific glass plate is sandwiched between a part of the body and the sandwiching member, the specific glass plate moves or is displaced in the space where the other glass plate is disposed as in the conventional fire-proof fittings. It is possible to maintain the previous arrangement position or arrangement state. Therefore, according to the fire protection fitting according to the present invention, even if another glass plate is cracked and dropped, the specific glass plate does not generate a gap through which the flame passes and effectively flames. Can be prevented.

  Further, in the fire protection fitting according to the second invention (invention of claim 2), since the heat expansion material that expands when heated is arranged, the heat expansion material is heated by the temperature of the flame. When inflated, the specific glass is filled by filling between the clamping member and the extended portion of the specific glass plate or between the frame and the extended portion of the specific glass plate. The plate continues to be positioned between a part of the frame and the clamping member. Therefore, according to the fire protection fitting according to the second aspect of the present invention, even when the other glass plate is broken and dropped, the specific glass plate moves and no gap through which the flame passes is generated. Further, it is possible to prevent the passage of the flame from the end portion of the more specific glass plate, and it is possible to improve the fire prevention function.

  Moreover, according to the fire protection fitting according to the third invention (invention of claim 3), even if a glass plate or spacer other than the specific glass plate is dropped due to the radiation of the flame, the above The holding member is restricted and prevented from moving in a direction away from the specific glass plate by the movement restricting piece, and the fire prevention function can be further improved.

  Moreover, according to the fire protection fitting according to the fourth invention (the invention according to claim 4), even if the resin frame is heated and partially melted or deformed by the radiation of the flame. The one engaging member, the engaging convex portion, and the other engaging member are directly or indirectly connected to the metal plate, so that the holding member is displaced or dropped. As a result, the specific glass plate can hold the initial position very stably.

It is a sectional side view which shows the fitting for fire protection which concerns on embodiment of this invention. 1 is a cross-sectional plan view showing a fire protection fitting according to an embodiment of the present invention. It is a sectional side view which expands and shows the upper frame shown in FIG. It is a sectional side view which expands and shows the lower frame shown in FIG. FIG. 3 is an enlarged plan sectional view showing a left side frame shown in FIG. 2. It is a plane sectional view which expands and shows the right side frame shown in FIG. It is a disassembled perspective view which shows the arrangement | positioning state of a clamping member. FIG. 4 is a side cross-sectional view schematically showing a state after the float glass is dropped by a flame from the state shown in FIG. 3.

  Hereinafter, the fire protection fitting according to the best mode for carrying out the present invention will be described in detail with reference to the drawings. In addition, the fire prevention fitting 1 which concerns on this embodiment applies this invention to a sliding window.

  The fireproof fitting 1 according to this embodiment includes an upper outer frame 2 and a lower outer frame 3 shown in FIG. 1, a left outer frame 4 and a right outer frame 5 shown in FIG. The outdoor side window 6 disposed on the outdoor side inside the lower outer frame 3, the left outer frame 4 and the right outer frame 5, and the inner side of the outer frames 2 ... 5 on the indoor side. The indoor side window 7 is provided.

  The upper outer frame 2, the lower outer frame 3, the left outer frame 4 and the right outer frame 5 are each made of resin as a material in the fireproof fitting 1 according to the present embodiment, and each end thereof. By joining the parts to each other, the whole is fixed to an opening formed in a housing of a building (not shown) as a rectangular outer frame having a length in the vertical direction. The upper outer frame 2 is formed with an upper fixing plate portion 2a (see FIG. 1), which is fixed to the casing (not shown) with a screw 11 and formed in an L-shaped cross section at the upper portion. The upper outer rail 2b is formed below the frame 2 and slightly outside the center of the upper outer frame 2 with the upper outer rail 2b protruding downward, and the upper inner rail 2c is protruded downward slightly on the indoor side. It is formed in a state. The upper outer rail 2b and the upper inner rail 2c are parallel to each other, the upper outer rail 2b guides the upper end side of the outdoor side window frame 6 in the horizontal direction, and the upper inner rail 2c The upper end side of the indoor side window frame 7 is guided in the horizontal direction. A plurality of cavities (reference numerals are omitted) are formed inside the upper outer frame 2, and a metal reinforcing member (reference numerals are omitted) is formed inside some of these cavities. Each is fixed by a screw (the symbol is omitted).

  On the other hand, the lower outer frame 3 is formed with a lower fixing plate portion 3a which is fixed to the lower casing (not shown) with screws 13 and is formed symmetrically with the upper fixing plate portion 2a. Formed with the lower outer rail 3b projecting upward at the upper part of the lower outer frame 3 and slightly outside the center, and with the lower inner rail 3c projecting upward slightly on the indoor side Has been. The lower outer rail 3b and the lower inner rail 3c are parallel to each other, the lower outer rail 3b guides the lower end side of the outdoor side window 6 in the horizontal direction, and the lower inner rail 3c The lower end side of the indoor side window 7 is guided in the horizontal direction. A plurality of cavities (reference numerals are omitted) are formed in the lower outer frame 3, and metal reinforcing members (reference numerals are omitted) are screws in some of these cavities. (The reference numerals are omitted.)

  Further, as shown in FIG. 2, the left outer frame 4 is formed with a left fixing plate portion 4a that is fixed to the casing (not shown) by screws 14 and is formed in a rectangular shape on the outside. 4, the left ridge 4b is formed on the outdoor side slightly from the center in a state of protruding to the right. In addition, a plurality of cavities (reference numerals are omitted) are formed inside the left outer frame 4, and a metal reinforcing member (reference numerals are omitted) inside some of these cavities. It is fixed by a screw (the symbol is omitted). The right outer frame 5 is formed on the outside with a right fixing plate portion 5a which is fixed to the casing (not shown) with screws 15 and is shaped symmetrically with the left fixing plate portion 4a. The right ridge 5b is formed in a state protruding slightly to the left side, on the indoor side slightly from the center. A plurality of cavities (reference numerals are omitted) are formed inside the right outer frame 5, and a metal reinforcing member (reference numerals are omitted) inside some of these cavities. It is fixed by a screw (the symbol is omitted).

  The outdoor window 6 includes an upper frame body 18 and a lower frame body 19 shown in FIG. 1, a left frame body 20 and a right frame body 21 shown in FIG. 2, and the upper frame body 18 and the lower frame body. 19, an outer float glass plate 23 arranged on the outdoor side inside the frame (the reference numeral is omitted) composed of the left frame 20 and the right frame 21, and the outer float glass arranged indoors And an outer heat-resistant tempered glass plate 24 that faces the plate 23. The outer heat-resistant tempered glass plate 24 is a specific glass plate constituting the present invention, and the outer float glass 23 is another glass plate constituting the present invention. In addition, spacers 25 are disposed between the end portions of the outer float glass plate 23 and the outer heat-resistant tempered glass plate 24, respectively. Further, as shown in FIG. 1, an outer door wheel 26 that is guided by the lower outer rail 3b and rolls on the lower outer rail 3b rotates on the lower frame 19 that constitutes the outdoor side window 6. Arranged freely. Moreover, as shown in FIG. 2, the left side groove | channel 20a in which the said left side protrusion 4b is inserted is formed in the left side of the said left side frame body 20 which comprises this outdoor side window 6. As shown in FIG.

  The indoor side window 7 includes an upper frame 28 and a lower frame 29 shown in FIG. 1, a left frame 30 and a right frame 31 shown in FIG. 2, and the upper frame 28 and the lower frame. 29, an inner float glass plate 33 disposed on the outdoor side inside the frame (the reference numeral is omitted) composed of the left frame 30 and the right frame 31, and the inner float glass disposed on the indoor side. And an inner heat-resistant tempered glass plate 34 facing the plate 33. The inner heat-resistant tempered glass plate 34 is a specific glass plate constituting the present invention. The inner float glass 33 is another glass plate constituting the present invention. In addition, spacers 35 are disposed between the end portions of the inner float glass plate 33 and the inner heat-resistant tempered glass plate 34, respectively. Further, as shown in FIG. 1, an inner door wheel 37 that is guided by the lower inner rail 3c and rolls on the lower inner rail 3c is rotated on the lower frame 29 that constitutes the indoor side window 7. Arranged freely. Moreover, as shown in FIG. 2, the right side groove | channel 31d in which the said right side protrusion 5b is inserted is formed in the right side of the said right side frame 31 which comprises this indoor side window 7. As shown in FIG.

  The outdoor side window 6 and the indoor side window 7 are each supported by the lower outer frame 3 as shown in FIG. 1, and the outer door wheel 26 or the inner door wheel 37 is rolled. 2, the left side structure of the outdoor side window 6 and the left side structure of the indoor side window 7, and the right side structure of the outdoor side window 6 and the indoor side Although the structure on the right side of the window 7 is different from each other, the structure for supporting the outer heat-resistant tempered glass plate constituting the present invention and the basic structure for improving the fire resistance in addition to such a supporting structure are the same here. In the following, the configuration of the indoor window 7 will be described in detail.

  As described above, the indoor-side window 7 includes the upper frame 28 and the lower frame 29 shown in FIG. 1, and the left frame 30 and the right frame 31 shown in FIG. As shown in FIG. 3, the upper frame 28 is continuous with the outdoor side plate portion 28a located on the outdoor side, the indoor side plate portion 28b located on the indoor side, and the outdoor side plate portion 28a and the indoor side plate portion 28b. And a top plate portion 28c. Note that the lower end of the indoor side plate portion 28b is positioned below the lower end of the outdoor side plate portion 28a and the formation position of a bottom plate portion 28f described later. An upper concave strip 28d into which the lower end side of the upper inner rail 2c is inserted is formed at the center of the top plate portion 28c. A partition plate portion 28e is formed in the upper frame 28. The partition plate portion 28e has a left end continuous to the outdoor side plate portion 28a and a right end continuous to the inner side plate portion 28b. Is formed. The upper concave stripes 28d are formed from the partition plate portion 28e, one hanging plate portion 28g hanging from the outdoor side middle portion of the top plate portion 28c, and the indoor side middle portion of the top plate portion 28c. The other hanging plate portion 28h is a portion surrounded by the other hanging plate portion 28h. The upper end side of the one hanging plate portion 28g and the upper end side of the other hanging plate portion 28h are respectively connected to the upper inner rail. The base end of the mohair 40 that is in sliding contact with the side surface of 2c is fixed. The bottom plate portion 28f is formed with an insertion hole 28i (see FIG. 7) through which a shaft portion 50b of a second fixing screw 50 described later is inserted. In addition, a first upper metal reinforcing member 45 whose lower surface is fixed to the partition plate portion 28e by the first fixing screw 43 and whose cross-sectional shape is formed in a concave shape is disposed in the upper concave strip 28d. .

  An insertion hole (not shown) is formed in the center of the partition plate portion 28e, and the partition plate portion 28e, the outdoor side plate portion 28a, and the indoor side plate are provided below the partition plate portion 28e. A third hollow portion 28m surrounded by the portion 28b and the bottom plate portion 28f is formed. A second upper metal reinforcing material 46 is fixed by the first fixing screw 43 in the third hollow portion 28m. The second upper metal reinforcing member 46 includes an upper reinforcing plate portion 46a facing the partition plate portion 28e, and the outdoor side plate portion bent downward from an end portion of the upper reinforcing plate portion 46a. A front reinforcing plate portion 46b opposed to 28a, a lower reinforcing plate portion 46c bent from the lower end of the front reinforcing plate portion 46b and opposed to the bottom plate portion 28f, and a rear end of the lower reinforcing plate portion 46c It is comprised from the indoor side reinforcement board part 46d which stands up from the above and faces the said indoor side board part 28b. The upper reinforcing plate portion 46a is formed with a screw hole (reference numeral is omitted) into which the first fixing screw 43 is screwed, and the lower reinforcing plate portion 46c has a later-described first hole. A screw hole (reference numeral is omitted) into which the shaft portion 50b of the second fixing screw 50 is screwed is formed.

  Further, a third upper metal reinforcing member 48 is fixed from the lower surface of the bottom plate portion 28f constituting the upper frame 28 to the inner surface of the indoor side plate portion 28b. The third upper metal reinforcing member 48 is formed by a fixed plate portion 48a fixed to the lower surface of the bottom plate portion 28f, and bent from an end portion of the fixed plate portion 48a and in contact with the indoor side plate portion 28b. The fixing plate portion 48a is formed with an insertion hole 48c (see FIG. 7) through which a shaft portion 50b of a second fixing screw 50 described later is inserted. The third upper metal reinforcing member 48 is screwed to the lower reinforcing plate portion 46 c constituting the second upper metal reinforcing member 46 by the second fixing screw 50. The second fixing screw 50 is a flat head screw, and as shown in FIG. 7, a head portion 50a formed in a truncated cone shape and a shaft portion 50b in which a screw (reference numeral is omitted) is screwed on the outer periphery. It consists of and. The second fixing screw 50 not only fixes the third upper metal reinforcing member 48 to the upper frame 28 but also attaches the metal convex member 51 to the lower surface of the bottom plate portion 28f. It is fixed. The convex member 51 has a shaft portion 50b of the second fixing screw 50 inserted through the center thereof, and an accommodating portion (reference numeral is omitted) in which the head portion 50a of the second fixing screw 50 is accommodated. Is formed. In addition, this convex member 51 is an engagement convex part which comprises this invention.

  As shown in FIG. 3 or FIG. 7, a metal upper clamping member 55 is disposed below the bottom plate portion 28f constituting the upper frame 28 and on the outdoor side of the indoor side plate portion 28b. ing. The upper clamping member 55 is a clamping member constituting the present invention. The upper clamping member 55 is bent downward from an upper plate portion 55a facing the lower surface of the bottom plate portion 28f and an outdoor side end (left end in FIG. 3) of the upper plate portion 55a. A front plate portion 55b, a lower plate portion 55c bent from the lower end of the front plate portion 55b to the indoor side and facing the lower surface of the upper plate portion 55a, and a rear end of the upper plate portion 55a (in FIG. 3) , Right end) and a rear plate portion 55d bent downward and facing the indoor side plate portion 28b. A heating expansion material 44 is bonded to the lower surface of the lower plate portion 55c and the rear surface of the back plate portion 55d.

  Further, as shown in FIG. 7, one engaging member 56 is fixed to the upper plate portion 55 a constituting the upper clamping member 55. The one engaging member 56 is made of metal, and includes one locking plate portion 56a having a length in the same direction as the length direction of the upper clamping member 55, and the one locking plate. One bent plate portion 56b bent downward from one end of the portion 56a, and one weld bent from the lower end of the one bent plate portion 56b and welded to the upper surface of the upper plate portion 55a. A plate portion 56c, the other bent plate portion 56d bent downward from the other end of the one locking plate portion 56a, and the upper plate bent from the lower end of the other bent plate portion 56d. It is comprised from the other welding board part 56e welded to the upper surface of the part 55a. The one engaging member 56 fixed to the upper clamping member 55 is composed of the one locking plate portion 56 a constituting the one engaging member 56 and the upper plate constituting the upper clamping member 55. It is engaged and suspended by the other metal engaging member 58 provided with the other engaging plate part 58b inserted from the outdoor side of this indoor side window 7 between the part 55a. The other engaging member 58 is held by a finger of an operator (not shown) and abutment plate portion 58a that abuts against the front plate portion 55b of the upper clamping member 55, and is folded at right angles from the upper end of the abutment plate portion 58a. The other engagement plate portion 58b is bent and inserted between the one engagement plate portion 56a and the upper plate portion 55a. Further, the other engagement plate portion 58b is formed with a long hole 58c that engages with the convex member 51 and a notch hole 58d that communicates with the center of the long hole 58c. Therefore, the other engagement member 58 is supported below the upper clamping member 55 by the engagement between the elongated hole 58c formed in the other engagement plate portion 58b and the convex member 51. The upper clamping member 55 is suspended below the bottom plate portion 28f by the engagement between the other engagement plate portion 58b and the one locking plate portion 56a. That is, in the fire protection fitting 1 according to this embodiment, the first upper metal reinforcing material 45 and the second upper metal reinforcing material 46 fixed in the upper concave stripe 28d are the first upper metal reinforcing material 46 and the first upper metal reinforcing material 46. The second upper metal reinforcing member 46 is connected to the third upper metal reinforcing member 48 via the second fixing screw 50 and the convex member 51. It is fixed and connected, and is connected to the upper clamping member 55 via the other engaging member 58.

  The inner float glass plate 33 described above is disposed below the upper sandwiching member 55 as shown in FIG. 3, and the upper end of the inner float glass plate 33 constitutes the upper sandwiching member 55. It is close to the lower surface of the lower plate portion 55c. Further, the inner heat-resistant tempered glass plate 34 described above is disposed on the indoor side of the inner float glass plate 33. The upper end side of the inner heat-resistant tempered glass plate 34 extends upward from the upper end of the inner float glass plate 33, and the extended portions correspond to the upper clamping member 55 and the upper frame body 28. Is sandwiched between indoor side plate portions 28b. A spacer 35 is disposed between the upper end side of the inner float glass plate 33 and the inner heat resistant tempered glass plate 34. Further, a press-fit groove 28n is formed at the lower end of the outdoor side plate portion 28a constituting the upper frame 28, and the base end of the upper pressing edge 64 is press-fitted into the press-fit groove 28n.

  Next, the configuration of the lower frame 29 constituting the indoor window 7 will be briefly described. As shown in FIG. 4, the lower frame 29 constitutes the upper frame 28 and an outdoor side plate 29 a formed to the same length as the outdoor plate 28 a constituting the upper frame 28. The indoor side board part 29b shape | molded by the same length as the said indoor side board part 28b, and the bottom plate part 29c which continues to these outdoor side board parts 29a and the indoor side board part 29b are provided. In the center of the bottom plate portion 29c, an inner door wheel 37 that is supported and guided by the lower inner rail 3c and rolls on the lower inner rail 3c is rotatably disposed. A top plate portion 29d is formed above the bottom plate portion 29c, and a glass plate support member 72 is fixed to the top surface of the top plate portion 29d. The glass plate support member 72 supports the lower end of the inner float glass plate 33 and the lower end of the inner heat-resistant tempered glass plate 34. The spacer 35 is disposed between the lower end side of the inner float glass plate 33 and the lower end side of the inner heat resistant tempered glass plate 34. A press-fit groove 29n is formed at the upper end of the outdoor side plate portion 28a, and the base end of the lower pressing edge 74 is press-fitted into the press-fit groove 29n.

  Next, the configuration of the left frame 30 constituting the indoor window 7 will be described in detail with reference to FIG. The left frame 30 includes an outdoor side plate portion 30a formed on the outdoor side, an indoor side plate portion 30b formed on the indoor side, and a left side plate portion 30c formed continuously from the outdoor side plate portion 30a and the indoor side plate portion 30b. And. In addition, the left concave portion 30d is formed in the center of the left side plate portion 30c. Further, a partition plate portion 30e is formed in the left side frame 30. The partition plate portion 30e has a front end continuous to the outdoor side plate portion 30a and a rear end continuous to the indoor side plate portion 30b. 30f is formed. The left groove 30d includes the partition plate portion 30e, one upright plate portion 30g standing from the midway portion of the left side plate portion 30c to the partition plate portion 30e side, and the midway of the left side plate portion 30c. This is a portion surrounded by the other upright plate portion 30h that stands up from the portion toward the partition plate portion 30e. In addition, a first left-side metal reinforcing member 81 that is fixed to the partition plate portion 30e by a first fixing screw 80 and has a concave cross-sectional shape is disposed in the left-side recess 30d. In addition, the 1st left hollow part 30j is formed in the outdoor side of the said left side groove | channel 30d, and the 2nd left hollow part 30k is formed in the indoor side.

  The partition plate portion 30e is formed with an insertion hole (reference numeral is omitted), and on the right side of the partition plate portion 30e, the partition plate portion 30e, the outdoor side plate portion 30a, and the indoor side plate portion 30b. A third left hollow portion 30m surrounded by the inner plate portion 30f is formed. A second left metal reinforcing member 82 is fixed in the third left hollow portion 30m by the first fixing screw 80. The second left-side metal reinforcing member 82 includes a left-side reinforcing plate portion 82a that faces the partition plate portion 30e, and is bent to the right side from the end of the left-side reinforcing plate portion 82a. 30a, an outdoor side reinforcing plate portion 82b, a right side reinforcing plate portion 82c bent from an end portion of the outdoor side reinforcing plate portion 82b and facing the inner side plate portion 30f, and the right side reinforcing plate portion It is comprised from the outdoor side board part 82d bent from the edge part of 82c, and facing the said indoor side board part 30b. The left reinforcing plate portion 82a is formed with a screw hole (reference numeral is omitted) into which the first fixing screw 80 is screwed. The right reinforcing plate portion 82c is formed with a screw hole (reference numeral is omitted) into which a shaft portion 84b of a second fixing screw 84 described later is screwed.

  A third left metal reinforcing member 83 is fixed from the right side surface of the inner side plate portion 30f constituting the left side frame 30 to the inner side surface of the indoor side plate portion 30b. The third left-side metal reinforcing member 83 is fixed to the right side surface of the inner plate portion 30f, and is bent from the end portion of the fixed plate portion 83a and comes into contact with the indoor side plate portion 30b. The fixing plate portion 83a is formed with an insertion hole (not shown) through which a shaft portion 84b of a second fixing screw 84 described later is inserted. The third left metal reinforcing member 83 is screwed to the right reinforcing plate portion 82c constituting the second left metal reinforcing member 82 by a second fixing screw 84. The second fixing screw 84 is a countersunk screw, and includes a head portion 84a formed in a truncated cone shape and a shaft portion 84b in which a screw (reference numeral is omitted) is screwed on the outer periphery. The second fixing screw 84 not only fixes the third left metal reinforcing member 83 to the left frame 30, but also attaches the metal convex member 85 to the right side of the inner plate portion 30f. It is fixed to the surface. The convex member 85 is formed in the same shape as the convex member 51, and the shaft portion 84b of the second fixing screw 84 is inserted therethrough. In addition, this convex member 85 is an engagement convex part which comprises this invention.

  As shown in FIG. 5, a metal left holding member 88 is disposed on the right side of the inner plate portion 30 f constituting the left frame 30. The left clamping member 88 is a clamping member constituting the present invention. The left clamping member 88 has the same configuration as the upper clamping member 55, and includes a left plate portion 88a facing the inner plate portion 30f and one end of the left plate portion 88a (in FIG. 5). The indoor side plate 88b bent rightward from the upper end), the right plate 88c bent indoors from the lower end of the indoor side plate 88b and opposed to the left plate 88a, and the left plate The indoor side plate portion 88d is bent to the right from the other end (the lower end in FIG. 5) of the portion 88a and is opposed to the indoor side plate portion 30b. The heating expansion material 44 is bonded to the right side surface of the right plate portion 88c and the back surface of the indoor side plate portion 88d.

  In addition, one engagement member 89 formed in the same shape as the one engagement member 56 disposed on the upper frame body 28 is fixed to the left plate portion 88a constituting the left clamping member 88. One engagement member 89 is connected by the other engagement member 91 formed in the same shape as the other engagement member 58 disposed on the upper frame 28, and the other engagement member 91 is engaged with the convex member 85. That is, in the fire protection fitting 1 according to this embodiment, the first left-side metal reinforcing member 81 and the second left-side metal reinforcing member 82 fixed in the left-side recess 30d are The second left metal reinforcing member 82 is connected via the first fixing screw 80, and the second left metal reinforcing member 83 is connected to the third left metal reinforcing member 83 via the second fixing screw 84 and the convex member 85. And is connected to the left clamping member 88 via the other engaging member 91.

  The inner float glass plate 33 described above is disposed on the right side of the left sandwiching member 88, and the left end of the inner float glass plate 33 is the right side surface of the right plate portion 88c constituting the left sandwiching member 88. Is close to. The inner heat-resistant tempered glass plate 34 described above is disposed on the indoor side of the inner float glass plate 33. The left end of the inner heat-resistant tempered glass plate 34 extends further to the left than the left end of the inner float glass plate 33, and the extended portion includes the left holding member 88 and the left frame 30. Is sandwiched between indoor side plate portions 30b. A spacer 35 is disposed between the left end side of the inner float glass plate 33 and the inner heat resistant tempered glass plate 34. A press-fit groove 30n is formed at the distal end (left end) of the outdoor side plate portion 30a constituting the left frame 30, and the base end of the left pressing edge 93 is press-fitted into the press-fit groove 30n.

  Next, the configuration of the right frame 31 constituting the indoor side window 7 will be briefly described with reference to FIG. The right frame 31 includes an outdoor side plate portion 31a formed on the outdoor side, an indoor side plate portion 31b formed on the indoor side, and a right side plate portion 31c formed continuously with the outdoor side plate portion 31a and the indoor side plate portion 31b. And. As described above, the right side groove 31d into which the right side protrusion 5b is inserted is formed at the center of the right side plate portion 31c. In addition, the structure of this right side frame 31 is shape | molded by the said left side frame 30 and the substantially symmetrical shape except the structure of the right side groove | channel 31d in which the said right side protruding item | line 5b is inserted. That is, the right frame 31 is substantially the same as the first left metal reinforcing member 101 formed symmetrically with the first left metal reinforcing member 81 and the second left metal reinforcing member 82. A second left metal reinforcing member 102 formed symmetrically with the second left metal reinforcing member 102 and a second left metal reinforcing member 102 formed symmetrical with the first fixing screw 80; A first fixing screw 103, a third right metal reinforcing member 104 formed symmetrically with the third left metal reinforcing member 83, and a right member formed symmetrically with the left holding member 88. The holding member 105, the second fixing screw 84, the second fixing screw 106 that is shaped symmetrically with the second fixing screw 84, and that connects the third right metal reinforcing member 104 and the right holding member 105, and the convex member Ridges arranged so as to be symmetrical with 85 Material 107, and the other engagement member 91 and the other engagement member 108 which is formed symmetrically, respectively.

  The right end of the inner float glass plate 33 described above is located on the left side of the right clamping member 105. The inner side of the inner float glass plate 33 faces the inner float glass plate 33. The inner heat-resistant tempered glass plate 34 described above is disposed. The right end of the inner heat-resistant tempered glass plate 34 extends further to the right side than the right end of the inner float glass plate 33, and the extended portion includes the right clamping member 105 and the right frame 31. Is sandwiched between indoor side plate portions 31b. A spacer 35 is disposed between the right end side of the inner float glass plate 33 and the inner heat resistant tempered glass plate 34. Further, a press-fit groove 31n is formed at the distal end (left end) of the outdoor side plate portion 31a constituting the right frame 31, and the base end of the right pressing edge 110 is press-fitted into the press-fit groove 31n.

  As shown in FIG. 2, the right side frame 21 constituting the outdoor side window 6 and the left side frame 30 constituting the indoor side window 7 described above include the outdoor side window 6 and the indoor side window. The members that maintain the airtightness of each other and the members that lock each other when they are closed are disposed, but the description of these configurations is omitted.

  As is clear from the explanation of the indoor side window 7 described above, in the fire protection fitting 1 according to this embodiment, the upper end side, the left end side and the right end side of the inner heat resistant tempered glass plate 34 are the inner float glass plate. 33 is extended to the upper frame 28, the left frame 30 or the right frame 31 side from the upper end, the left end and the right end, and these extended portions, the upper end side of which is the upper clamping The left end side of the member 55 and the indoor side plate portion 28b constituting the upper frame body 28 is constituted by the left side holding member 88 and the indoor side plate portion 30b constituting the left frame portion 30, and the right end side thereof is designated. The right side clamping member 105 and the indoor side plate part 31b constituting the right side frame 31 are clamped respectively. Therefore, even when the inner float glass 33 which is another glass plate constituting the present invention is cracked and dropped together with the spacer 35 due to the radiation of the flame from the outdoor side, as shown in FIG. The inner heat-resistant tempered glass plate 34 (which constitutes the inner heat-resistant tempered laminated glass), which is a specific glass plate constituting, moves into the space where the inner float glass 33 is disposed as in a conventional fire-proof fitting. The arrangement position or the arrangement state up to that time can be maintained without causing any misalignment or misalignment. Therefore, according to the fireproof fitting 1, even when the inner float glass 33 is broken and dropped, the inner heat-resistant tempered glass plate 34 is moved, and a gap through which a flame passes is not generated. The passage of the flame can be prevented. Further, between the extended portion of the inner heat-resistant tempered glass plate 34 and the upper holding member 55, between the portion and the indoor side plate portion 28b constituting the upper frame 28, the portion and the left holding member. 88, between the part and the indoor side plate part 30b constituting the left frame 30, between the part and the right clamping member 105, the indoor side plate part constituting the part and the right frame 31 Since the heating expansion material 44 is disposed between the heating member 31b and the thermal expansion material 44, the holding members (reference numerals are omitted) when the heating expansion material 44 is heated and expanded by the flame temperature. ) And the indoor side plate portions (reference numerals are omitted) that are part of each frame (reference numerals are omitted), the inner heat-resistant tempered glass plate 34 is further sandwiched between the above-mentioned sandwiched parts. Each indoor side that is part of the member and each frame Continue located between the parts. Therefore, according to the fire protection fitting 1 according to this embodiment, it is possible to prevent the flame from passing through the indoor side from the end of the inner heat resistant tempered glass plate 34, and to further improve the fire prevention function. It becomes possible.

  Furthermore, in the fire protection fitting 1 according to this embodiment, the upper clamping member 55, the left clamping member 88, and the right clamping member 105 that clamp the inner heat-resistant tempered glass plate 34 are the upper frame 28 and the left frame. 30, metal reinforcing members (reference numerals are omitted) arranged and fixed on the right side frame 31, one and other engaging members (reference numerals are omitted), and metal convex members (reference numerals). Are not connected to each other, even if the resin frames (the reference numerals are omitted) are melted due to the flame temperature. Therefore, according to the fireproof fitting 1 according to this embodiment, the fireproof function can be further improved.

  In addition, the fire prevention fitting 1 which concerns on the said embodiment is a fire prevention fitting which is a sliding window provided with one (inner side and outer side) float glass 23 and 33 (inner side (heat-resistant tempered glass plates 24 and 34). 1 (fireproof fitting 1 having an outdoor side window 6 and an indoor side window 7), the sliding window includes two float glasses (not shown) and an inner heat-resistant tempered glass plate. In addition to these sliding windows, the so-called window that does not have an opening / closing function, a door provided with the float glass and the heat-resistant tempered glass plate, and a vertical sliding The present invention may be applied to a window or a continuous window.

DESCRIPTION OF SYMBOLS 1 Fire prevention fitting 2 Upper outer frame 3 Lower outer frame 4 Left outer frame 5 Right outer frame 6 Outdoor side window 7 Indoor side window 18 Upper frame body 19 Lower frame body 20 Left frame body 21 Right frame body 23 Outer float glass Plate 24 Outside heat-resistant tempered glass plate 28 Upper frame 28a Outdoor side plate 28b Indoor side plate 29 Lower frame 30 Left frame 30a Outdoor side plate 30b Indoor side plate 31 Right frame 31a Outdoor side plate 31b Indoor side plate 33 Inside Float glass plate 34 Inside heat-resistant tempered glass plate 43 First fixing screw 44 Heat expansion material 45 First upper metal reinforcing material 46 Second upper metal reinforcing material 48 Third upper metal reinforcing material 50 Second Fixing screw 51 Convex member 55 Upper clamping member 58 Other engagement member 80 First fixing screw 81 First left metal reinforcing material 82 Second left metal reinforcing material 83 Third left metal reinforcing material 84 Second Fixing screw 85 Convex member 88 Left side clamping member 91 Other engagement member 101 First right metal reinforcing member 102 Second left metal reinforcing member 103 First fixing screw 104 Third right metal reinforcing member 105 Right clamping member 106 Second fixing screw 107 Convex member 108 Other engagement members 112 and 113 Covering material

The present invention has been proposed in order to solve the above problems, and the first invention (the invention according to claim 1) is arranged on the inner side of the frame body, and is the most outdoor side or most In a fire protection fitting comprising a specific glass plate that is a mesh glass or heat-resistant tempered glass plate fixed inside, and another glass plate fixed to face the specific glass plate, either at least the upper end or the left end or right end of the glass plate, the upper end or the left end or right end of the other glass plate is out predetermined extension length so as to approach the inner peripheral side of the frame, the specific The extended portion of the glass plate is sandwiched between a part of the frame body and a sandwiching member disposed in the frame body, and one engaging member is fixed to the sandwiching member, and the frame body And the clamping member is disposed inside An engaging convex portion is fixed in the vicinity of the mounting, and the one engaging member and the engaging convex portion are respectively connected to the other engaging member mounted after the holding member is disposed in the frame body. In addition to being engaged, the other engaging member has a movement restricting piece for restricting the holding member from moving in a direction away from the specific glass plate. It is.

Further, in the present invention, one engaging member is fixed to the holding member, and an engaging convex portion is fixed inside the frame body and in the vicinity of the position where the holding member is disposed, The one engaging member and the engaging convex portion are respectively engaged with the other engaging member mounted after the holding member is disposed in the frame body, and the other engaging member includes And a movement restricting piece for restricting the sandwiching member from moving in a direction away from the specific glass plate. In other words, the engaging projections fixed to the frame are engaged with each other by the other engaging member, and the other engaging member is engaged with one engaging member. The one engaging member is fixed to the clamping member. That is, in the first invention, the clamping member formed by clamping the specific glass plate with a part of the frame body is attached to the frame body via the engagement convex portion and one and the other engagement members. Is engaged. In the first aspect of the invention, the other engaging member has a movement restricting piece for restricting the clamping member from moving in a direction away from the specific glass plate. Therefore, according to the present invention, the movement restricting piece restricts / blocks movement in the direction away from the specific glass plate, and the fire prevention function can be further improved.

Further, according to a second invention (invention of claim 2 ), in the first invention, the frame body is made of resin, and a metal plate is fixed to the frame body. The sandwiching member, the one engaging member, the engaging convex portion, and the other engaging member are all made of metal, and the engaging convex portion is directly connected to the metal plate or metal in between. It is characterized by being connected to each other through a made member.

In the fire protection fitting according to the second aspect of the present invention, the frame body is made of resin (formed by resin), and a metal plate is fixed. On the other hand, the clamping member, the one engaging member, the engaging convex portion, and the other engaging member described above are all made of metal, and the engaging convex portion is directly connected to the metal plate. They are connected or connected to each other via a metal member. Therefore, even when the resin frame is heated and partly melts or deforms due to the radiation of the flame, the one engaging member, the engaging convex portion, and the other engaging member are In addition, since it is directly or indirectly connected to the metal plate, it is possible to reliably prevent the sandwiching member from being displaced or dropped. As a result, the specific glass plate is extremely stable. Thus, the original position can be maintained. Note that iron, stainless steel, aluminum and other metals can be used as long as the metal has a melting point relatively higher than the melting point of the resin that is the material of the frame.

In particular, according to the first aspect of the present invention, even when a glass plate other than the specific glass plate or a spacer is dropped due to the radiation of the flame, the holding member is provided with the specific glass plate by the movement restricting piece. The movement in the direction away from the head is restricted and prevented, and the fire prevention function can be further improved.

Moreover, according to the fire protection fitting according to the second invention (invention of claim 2 ), even when the resin frame is heated and partially melted or deformed by the radiation of the flame. The one engaging member, the engaging convex portion, and the other engaging member are directly or indirectly connected to the metal plate, so that the holding member is displaced or dropped. As a result, the specific glass plate can hold the initial position very stably.

Claims (4)

A specific glass plate that is arranged inside the frame and that is the net glass or heat-resistant tempered glass plate that is fixed to the most outdoor side or the most indoor side, and fixed to face this specific glass plate In a fire protection fitting comprising other glass plates,
At least the upper end or the left end or the right end of the specific glass plate is extended by a predetermined length so as to be closer to the inner peripheral side of the frame body than the upper end or the left end or the right end of the other glass plate. As
The extended part of the specific glass plate is sandwiched between a part of the frame body and a sandwiching member arranged in the frame body.   At least one of the space between the holding member and the extended portion of the specific glass plate or the extended portion of the frame and the specific glass plate expands when heated. The fireproof fitting according to claim 1, wherein a heat expansion material is disposed. One engaging member is fixed to the holding member, and an engaging convex portion is fixed in the vicinity of the position inside the frame body where the holding member is disposed,
The one engaging member and the engaging convex portion are respectively engaged with the other engaging member mounted after the holding member is disposed in the frame body, and the other engaging member includes The fire protection fitting according to claim 1, further comprising a movement restricting piece that restricts the holding member from moving in a direction away from the specific glass plate.   The frame body is made of resin, and a metal plate is fixed to the frame body, while the clamping member, the one engagement member, the engagement convex portion, and the other engagement member are: 4. The fire prevention fitting according to claim 3, wherein both are made of metal, and the engaging projections are directly connected to the metal plate or connected to each other via a metal member therebetween. .