JP2015178711A - door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door with a structure capable of preventing a gap from being generated between a vertical frame on a door hanging side and a door body at the time of occurrence of a fire.SOLUTION: A door body 2 is installed to be openable/closable within a rectangular door frame 1 around pivotal shafts 19 disposed above and below the door body 2 on a door hanging side. A first heat foaming medium 24 is attached to a surface 3d of a door hanging side vertical frame 3 which faces an end face 2a of the door body 2. A second heat foaming medium 25 is installed, with a gap reserved with respect to the first heat foaming medium 24, on a surface of the door hanging side vertical frame 3 that faces an indoor side surface 2b of the door body 2. The second heat foaming medium 25 foams after the first heat foaming medium 24. As a result, if a gap is generated between the first heat foaming medium 24 and the door body 2 after the foaming of the first heat foaming medium 24, the second heat foaming medium 25 foams to fill the gap.

Description

  The present invention relates to a door used in an apartment or a general house.

  When a fire occurs indoors or outdoors, it is necessary to prevent the flame or combustible gas from flowing out or flowing in between the shoji (door body) and the frame to prevent the spread of fire. For this reason, in Patent Document 1, in order to cause the heated foam material to foam as quickly as possible by receiving the heat from the fire due to the fire that occurred outdoors, the heated foam material is obliquely placed on the indoor side of the frame shoji. A structure attached to is disclosed.

JP2013-72218A

As a door installed in an apartment or the like, there is one in which the upper and lower sides of the door body are attached to the door frame so as to be openable and closable by a pivot shaft. In the case of such a door, there is a possibility that the center part of the door body expands due to a fire that occurs on the outside of the door, and the center part in the vertical direction of the suspension side end of the door body warps to the outside of the room. For this reason, flames and hot air may flow into the room from the outside through the gap formed by the warp, and there is a possibility that fire spread is likely to occur. In order to prevent such an expansion of the gap, even if the heating foam material as in Patent Document 1 is attached to the frame, once the heating foam material is foamed, if the gap further expands, the foamed heating foam material Since there is a gap between the door body and the door body, the possibility of fire spread again occurs.

  In view of the above problems, an object of the present invention is to provide a door having a structure capable of preventing the occurrence of a gap between a door suspending-side vertical frame and a door body in the event of a fire.

The door according to claim 1 is a door in which a door main body is attached in a rectangular door frame constituted by a vertical frame and a horizontal frame so that the door main body can be opened and closed around a pivot shaft provided on the upper and lower sides of the door main body. In
A first refractory material that expands due to heat is provided on a prospective surface of the hanging side vertical frame, and a second refractory material that expands due to heat is provided on the finding surface of the hanging side vertical frame.

The door according to claim 2 is the door according to claim 1,
The refractory material is attached to a bracket provided on the hanging side vertical frame,
The metal fitting has a piece extending along the expected direction of the hanging side vertical frame and a piece extending along the direction of finding the hanging side vertical frame,
The first refractory material is provided on a piece of the metal fitting that extends along the expected direction of the hanging base side vertical frame, and the second piece of the metal fitting that extends along the direction of finding the hanging base side vertical frame of the previous metal fitting. It is characterized by providing a refractory material.

The door according to claim 3 is the door according to claim 1 or 2,
An interval is provided between the first refractory material and the second refractory material.

  According to the first aspect of the present invention, it is possible to close the gap generated between the door body and the vertical frame at the time of a fire with the first and second refractory materials that are expanded by heat.

  According to the invention of claim 2, since heat is transferred from the first heating foam material to the second heating foam material through the heating foam material mounting bracket, the second heating foam material is expanded, Since the heated foaming material is quickly foamed, the gap between the hanging side vertical frame and the hanging side end of the door body is closed.

  According to invention of Claim 3, since the space | interval was provided between the 1st refractory material and the 2nd refractory material, the time difference of expansion | swelling of both can be given reliably.

It is the figure which looked at one Embodiment of the door of this invention from the outdoor side. It is a longitudinal cross-sectional view of the door of FIG. It is a cross-sectional view of the door of FIG. It is a longitudinal cross-sectional view which shows the pivot part of the door main body of this Embodiment. (A) is a cross-sectional view showing the mounting structure of the heating foam material of the present embodiment, (B) is a plan view showing the heating foam material and the heating foam material mounting bracket in an exploded manner. In this Embodiment, it is a cross-sectional view which shows the state after foaming of the 1st heating foam material. It is a cross-sectional view which shows the state which the clearance gap generate | occur | produced between the foamed heating foam material and the door main body from the state of FIG. It is a cross-sectional view which shows the state by which the clearance gap was obstruct | occluded with the 2nd heating foam material from the state of FIG. It is a cross-sectional view which shows other embodiment of the door of this invention.

  FIG. 1 is a view of an embodiment of the door of the present invention as viewed from the indoor side, and FIGS. 2 and 3 are a longitudinal sectional view and a transverse sectional view, respectively, of the door of FIG. 1 to 3, reference numeral 1 denotes a door frame, and 2 denotes a door main body mounted in the door frame 1. The door frame 1 includes a hanging vertical frame 3, a door side vertical frame 4, an upper horizontal frame (upper frame) 5, and a lower horizontal frame (lower frame) 6 made of an extruded metal member such as an aluminum alloy. Are combined with a tapping screw (not shown) to form a rectangle. In the present embodiment, the vertical frames 3 and 4 and the upper frame 5 are provided between the outdoor side members 3a, 4a and 5a and the indoor side members 3b, 4b and 5b with heat insulating bridge members 3c, 4c, The heat insulation is enhanced by bonding with 5c. The lower frame 6 also covers the surface on the indoor side with a synthetic resin material surface material 6a.

  In FIG. 1, 7 is an opening / closing handle provided on the door end side of the door body 2, and 8a and 8b are upper and lower cylinder locks.

  In the door body 2 of the present embodiment, a panel-shaped heat insulating material 12 is sandwiched between an inner surface plate 10 and an outer surface plate 11 made of stainless steel, and the heat insulating material 12 is sandwiched between the inner surface plate 10 and the outer surface plate 11. It is composed by bonding. The inner surface plate 10 and the outer surface plate 11 are formed in a box shape by bending each side portion, upper end portion, and lower end portion thereof into L-shapes and butting the respective L-shaped bent end portions. For the heat insulating material 12, for example, a foam material such as expanded polystyrene is used. Reference numeral 14 denotes an airtight material attached to the vertical frames 3 and 4, the upper frame 5, and the lower frame 6, and keeps the airtightness by contacting the surface on the indoor side around the door body 2.

  FIG. 4 is a longitudinal cross-sectional view showing the pivoting portion of the door body 2 of the present embodiment. As shown in FIG. 4, a steel core 15 is provided over the entire length of the door body 2 on the suspending side of the door body 2, and rivets 16 are provided on at least one of the inner surface plate 10 and the outer surface plate 11. Fix it. The pivot plates 17 and 18 are fixed to the upper and lower ends of the core member 15 with screws or the like. A pivot shaft 19 is attached to the hanging frame side vertical frame 3 side of the lower frame 6, and the pivot shaft 19 is rotatably fitted in a cylindrical spacer 20 and a pivot hole 18 a provided in the plate 18. . The plate 17 fixed on the upper surface of the core member 15 with a screw or the like is provided with a pivot shaft 21 so as to protrude upward. On the other hand, a steel bearing member 22 is provided on the suspension frame side vertical frame 3 side of the upper frame 5, and a pivot attachment hole 22 a is provided in the bearing member 22. Then, the pivot shaft 21 is rotatably fitted in the pivot hole 22a of the bearing member 22. Thereby, the door main body 2 is attached to the door frame 1 so that opening and closing is possible.

  FIG. 5A is a cross-sectional view showing a structure for attaching the heating foams 24 and 25 to the suspension side vertical frame 3, and FIG. 5B is a first heating foam provided as a first refractory material that expands by heat. It is a disassembled plan view which shows the material 24, the 2nd heating foam material 25 provided as a 2nd refractory material expanded by heat, and the attachment metal fitting 26 of these heating foam materials 24 and 25. As shown in FIG. 5 (B), the heating foam mounting member 26 has an L-shaped cross section, a surface 26a extending along the expected surface 3d of the hanging side vertical frame 3, and the hanging side vertical frame 3 And a surface 26b extending along the locating surface. The heating foam mounting member 26 preferably has a length that extends over substantially the entire length of the door body 2 in the vertical direction.

  As shown in FIG. 5A, the first heating foam material 24 is a double-sided tape (not shown) or bonded to a surface 26a extending along the expected surface of the suspension-side vertical frame 3 of the heating foam material fitting 26. Are fixed to each other and attached to the expected surface 3d of the hanging side vertical frame 3 by a fixing tool 27 such as a rivet or a screw.

  The second heating foam material 25 is fixed to a surface 26b extending along the finding surface of the suspension base vertical frame 3 of the heating foam material fitting 26 by a double-sided tape (not shown) or by adhesion, and both are riveted. Both are coupled by a fixture 28 such as a screw or a screw. The heating foam materials 24 and 25 are provided at a position where the door main body warps, that is, at least at the center in the vertical direction of the door main body, but these heating foam materials 24 and 25 may be provided over the entire length of the door main body 2. As shown in FIG. 5A, the heating foams 24 and 25 are attached with a gap therebetween.

  As shown in FIG. 5 (A), a synthetic resin material 3e for heat insulation is provided on the finding surface of the indoor side member 3b of the suspension side vertical frame 3, and this synthetic resin material 3e is attached to the heating foam material. A gap is formed between the metal fitting 26 to avoid heat transfer.

  In this configuration, when a fire occurs on the outdoor side and the flame or hot air acts on the door, the door body 2 is fixed to the door frame 1 by the pivot shafts 19 and 21. The suspension side warps so that the central part in the vertical direction protrudes to the outdoor side. In addition, since the door center side of the door main body 2 is fixed to the vertical frame 4 by a latch lock provided on the handle 7 at the center in the vertical direction, the center side in the vertical direction of the door main body 2 warps the outdoor side. There is nothing. In addition, when a fire occurs on the indoor side, the vertical central portion of the door main body 2 on the hanging base side warps to the indoor side and is pressed against the vertical frame 3. There is no problem of gaps between them.

  As described above, when a fire occurs on the outdoor side, the center side in the vertical direction of the door body 2 warps to the outdoor side due to flame or hot air. First, the first heating foam 24 is foamed by heat from the fire. Therefore, as shown in FIG. 6, the gap between the suspension side vertical frame 3 and the door body 2 is closed by the foamed heating foam material 24a. At this time, since the second heating foam material 25 is separated from the outside surface of the door, it does not foam when the first heating foam material 24 is foamed.

  However, after the foaming of the first heating foam material 24, if the suspending side of the door body 2 further warps outward as shown by the arrow 29 in FIG. A gap G is formed between the first heating foam material 24a.

  However, the gap G is closed as shown in FIG. 8 by foaming after the first heating foam material 24 by heating the second heating foam material 25. That is, the second heated foam material 25 is heated by heat transfer through the flame G from the gap G and the heated foam material mounting bracket 26, and within a few minutes after the first heated foam material 24 is foamed. Foam. For this reason, the clearance gap which temporarily arises between the 1st heating foam material 24a after foaming and the door main body 2 is obstruct | occluded by the foamed 2nd heating foam material 25a.

  For this reason, generation | occurrence | production of the clearance gap between the suspension origin side vertical frame 3 and the door main body 2 is prevented, and the fire spreading to the indoor side of the fire which generate | occur | produced on the outdoor side is prevented. In the case of the present embodiment, since the heat from the fire is transmitted to the second heating foam material 25 through the heating foam material mounting bracket 26, the second heating foam material 25 is foamed after the first heating foam material 24 is foamed. Is rapidly foamed, the gap between the suspension side vertical frame 3 and the suspension side end of the door body 2 is reliably closed.

  Further, as in the present embodiment, the suspension side vertical frame 3 is constituted by the bridge member 3c and the outdoor side member 3a and the indoor side member 3b being coupled by the bridge material 3c, or the bridge Even if there is no material 3 c, that is, regardless of the configuration of the vertical frame 3, it is possible to reliably foam the second heating foam material 25 by heat transfer by the heating foam material mounting bracket 26. .

  As described above, according to the present embodiment, the heating foam materials 24 and 25 prevent the gap between the vertical frame 3 and the door main body 2 from being generated, and the warp prevention metal fitting and the receiving metal fitting for the door main body are not necessary. . Here, since the heating foam materials 24 and 25 can be obtained at a lower price than conventional warp prevention metal fittings and metal fittings, the price of the door can be reduced.

  FIG. 9 shows another embodiment of the heating foam mounting structure of the present invention. In this embodiment, the heating foam material mounting bracket 26 is not used, and the first heating foam material 30 and the second heating foam material 31 are respectively connected to the end surface 2a of the door body 2 and the indoor side surface 2b of the suspension side vertical frame 3. Are fixed to the prospective surface 3d and the synthetic resin material 3e by double-sided tape (not shown) or by adhesion, and fixed by fixing tools 32 and 33 such as rivets and screws. Also in this embodiment, since the second heating foam material 31 foams later than the first heating foam material 30, when a fire occurs on the outdoor side, the suspension side vertical frame 3 and the door body 2 can be prevented from occurring.

  In the embodiment of FIG. 9, the first frame structure 3, that is, the heat transfer resistance between the heating foam materials 30 and 31 of the vertical frame 3, which differs depending on whether or not the bridge material 3 c is included, Considering that the difference in foaming time between the heating foam material 30 and the second heating foam material 31 occurs, the second heating foam material 31 is made lower than the foaming start temperature of the first heating foam material 30. The time difference of foaming may be about several minutes.

  In the embodiment of FIG. 9 as well, the door body warp prevention metal fitting and its receiving metal fitting are not required, so that the price of the door can be reduced.

  Although the present invention has been described above with reference to the embodiments, when the present invention is implemented, various changes and additions can be made to the constituent members and combinations thereof without departing from the spirit of the present invention.

1: door frame, 2: door main body, 3: hanging side vertical frame, 4: door side vertical frame, 5: upper frame, 6: lower frame, 7: handle, 8a, 8b: cylinder lock, 10: inside Surface plate, 11: outer surface plate, 12: heat insulating material, 19, 21: pivot shaft, 24, 30: first heating foam material (first refractory material), 25, 31: second heating foam material (Second refractory material), 26: heating foam mounting bracket, 27, 28, 32, 33: fixture

Claims (3)

In the door formed by opening and closing the door body around the pivot shaft provided on the upper and lower sides of the door body in the rectangular door frame constituted by the vertical frame and the horizontal frame,
A first refractory material that expands due to heat is provided on a prospective surface of a hanging side vertical frame, and a second refractory material that expands due to heat is provided on a finding surface of the hanging side vertical frame. . The door according to claim 1,
The refractory material is attached to a bracket provided on the hanging side vertical frame,
The metal fitting has a piece extending along the expected direction of the hanging side vertical frame and a piece extending along the direction of finding the hanging side vertical frame,
The first refractory material is provided on a piece of the metal fitting that extends along the expected direction of the hanging base side vertical frame, and the second piece of the metal fitting that extends along the direction of finding the hanging base side vertical frame of the previous metal fitting. A door characterized by a fireproof material. The door according to claim 1 or 2,
A door provided with a gap between the first refractory material and the second refractory material.

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