JP2019143307A - Holding structure for glass plate - Google Patents

Abstract

To provide a holding structure for a glass plate which has excellent water-tight and air-tight properties and a fire-proof property.SOLUTION: A holding structure for a glass plate which holds a peripheral edge part of a wired glass plate or a glass plate including a fire-proof property by a frame body. The glass plate includes: an amorphous seal material 7 provided between the frame body and one surface of the glass plate; and a regular seal material 6 which is provided between the frame body and the other surface of the glass plate and which expands and embrittles at a temperature lower than an ignition temperature.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a glass plate holding structure in which a peripheral end portion of a glass plate is held by a frame.

  As a glass plate holding structure, for example, a non-combustible backup material made of a ceramic fiber rope is loaded in the inner circumferential groove of the sash, and then a glass with a single sheet metal mesh is fitted into the inner circumferential groove, and the glass and inner circumference are fitted. A holding structure for a glass plate of a fireproof glass door formed by filling an irregular sealing material between the opening edge of a groove is known (for example, see Patent Document 1). The sealing material is glued to the glass and the sash respectively, has a higher ignition temperature than a regular sealing material such as a bead, and has high water tightness and air tightness.

Japanese Patent No. 2756652

  In the above glass holding structure, since the glass is a glass with a single wire mesh, for example, it does not reflect far-infrared rays like Low-E glass, so in the event of a fire, the sealing provided on the opposite side of the glass fire source The material may also be heated. The heated sealing material is melted and remains in the inner peripheral groove or the like, and may be ignited when further heated. That is, even if it is partitioned by glass, there is a possibility that the sealing material may ignite and spread to the space side opposite to the fire source with respect to the glass.

  This invention is made | formed in view of this subject, The place made into the objective is to provide the holding structure of the glass plate excellent in watertightness, airtightness, and fireproof property.

  In order to achieve such an object, the glass plate holding structure of the present invention is a glass plate holding structure in which a peripheral edge of a glass plate with mesh or fire resistance is held by a frame, and the glass plate Is provided between the one surface of the glass plate and the frame body, and an irregular sealing material provided between the other surface of the glass plate and the frame body, and is lower than the ignition temperature. A glass plate holding structure characterized by being held by a fixed sealing material that expands and weakens at a temperature.

  According to such a glass plate holding structure, since the glass plate is provided with the irregular sealing material between the one surface and the frame, both surfaces are held by the regular sealing material. It is possible to provide higher water tightness and air tightness than the case where it is present. In addition, a fixed sealing material that expands and weakens at a temperature lower than the ignition temperature is provided between the other surface of the glass plate and the frame, so that one surface side is a fire that becomes a fire source. In this case, the fixed sealing material provided between the other surface of the glass plate expands and becomes brittle before being heated and ignited. For this reason, even if the fixed sealing material is heated by the flame on one side of the glass plate, the weakened fixed sealing material swells out of the frame, so that the fixed sealing material does not ignite. In addition, there is no fixed sealing material between the other side of the glass plate and the frame. For this reason, it is possible to provide a glass plate holding structure excellent in watertightness, airtightness and fireproofing.

Such a glass plate holding structure is characterized in that a heating foam material is provided on the other surface side of the glass plate.
According to such a glass plate holding structure, the heated foam material provided on the other surface side of the glass plate presses the fixed sealing material when heated and expands. For this reason, it is possible to discharge the fixed sealing material that has become brittle when heated, more quickly and more reliably from between the glass plate and the frame material before the sealing material ignites.

In this glass plate holding structure, the heated foam material is heated and foamed, and presses the expanded fixed sealing material to enter between the other surface of the glass plate and the frame body. It is characterized by that.
According to such a holding structure of the glass plate, the heated foam material which is heated and foamed presses the expanded fixed seal material, and therefore the expanded fixed seal material is removed from the frame by the foamed heat foam material. When it is pressed in the direction and weakened, it tends to be pushed out of the frame. At this time, since the foamed heating foam material enters between the other side of the glass plate and the frame body, when the fixed sealing material is pushed out and no longer exists, the foamed heating foam material becomes the glass plate and the frame material. Exists between. For this reason, even if the fixed sealing material does not exist, the glass plate can be held by the foamed heated foam material and the irregular sealing material.

In this glass plate holding structure, the irregular sealing material is provided together with a nonflammable backup material.
According to such a glass plate holding structure, the backup material provided together with the irregular sealing material is incombustible, and therefore the backup material does not burn even if the irregular sealing material is melted. For this reason, it is possible to provide higher fire resistance.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the holding structure of the glass plate excellent in watertightness, airtightness, and fireproof property.

It is a cross-sectional view which shows the holding structure of the glass plate which concerns on this embodiment. It is a longitudinal cross-sectional view which shows the holding structure of the glass plate which concerns on this embodiment. It is an enlarged view of the A section in FIG. It is a cross-sectional view which shows the holding structure of a glass plate in case the glass plate is arrange | positioned indoors. It is a cross-sectional view showing a glass plate holding structure in which a bead is provided on the outdoor side of the glass plate and a wet sealant is provided on the indoor side. It is a cross-sectional view which shows the holding structure of the glass plate which hold | maintains the glass plate of the housing | casing with which a shoji is provided with a bead and a wet sealing material.

Hereinafter, a glass plate holding structure according to an embodiment of the present invention will be described with reference to the drawings.
In this embodiment, the glass plate holding structure will be described by taking a FIX window provided in a building as an example.

  As shown in FIGS. 1 and 2, the fixture 1 for a FIX window according to the present embodiment is attached to an opening 2 a of a frame 2 via an anchor 3, and attached to the inner peripheral side of the frame 4. A single-sheet netted glass plate (hereinafter referred to as a glass plate) 5.

  In the following description, when the fitting 1 to which the housing 2 is attached is viewed from the indoor side, the vertical direction is the vertical direction, the horizontal direction is the horizontal direction, and the depth direction that is the indoor / outdoor direction is the prospective direction. Show. Even if it is each site | part of the joinery 1, and each member which comprises the joinery 1 is a single-piece | unit state, in the state in which the joinery 1 is attached to the housing 2, the up-down direction, the left-right direction, and the depth direction The direction will be specified and described.

  In the frame body 4, an upper frame 41, a lower frame 42, and left and right vertical frames 43 made of four extruded members are framed in a rectangular shape. Each of the lower frame 42 and the left and right vertical frames 43 has a groove shape that is recessed toward the outer peripheral side at a portion facing each other in a framed state, that is, an inner peripheral portion of the rectangular frame body 4. The glass plate accommodating part 40 in which the 5 peripheral edge part 5a is accommodated is provided.

  The glass plate accommodating portion 40 of the lower frame 42 is provided on the inner peripheral surface 42b of the lower frame that forms the hollow portion 42a of the lower frame 42, and the opening portion whose upper side is opened is an insertion slot into which the glass plate 5 is inserted. And the lower end portion 5a of the glass plate 5 is formed in the hollow portion 42a.

  The glass plate accommodating portion 40 of the vertical frame 43 includes vertical frame inner peripheral surfaces 43a that the left and right vertical frames 43 respectively have, and two protruding wall portions 43b that protrude from the vertical frame inner peripheral surface 43a to the sides facing each other. It is formed by. More specifically, the openings on the front end side of the two protruding wall portions 43b provided with a gap in the prospective direction form an insertion opening into which the glass plate 5 is inserted, and the two protruding wall portions 43b. And the left and right end portions 5a of the glass plate 5 are accommodated in a groove formed by the inner peripheral surface 43a of the vertical frame.

  A bead 6 as a fixed sealing material that expands and weakens at a temperature lower than the ignition temperature is provided on the open side of the glass plate accommodating portion 40, that is, the end on the insertion port side where the glass plate 5 is inserted. A seal arrangement portion 40a capable of sandwiching a wet seal material 7 as a fitable and indeterminate seal material with the nonflammable backup material 8 and the glass plate 5 is provided to face the prospective direction. Here, as the bead 6 of the fixed sealing material, the glass plate 5 becomes brittle so that it cannot be held by being heated and thermally expanded and disappearing due to thermal decomposition, for example, made of polyvinyl chloride resin (PVC). As the wet seal material 7 of an irregular seal material, for example, a silicone-based seal material can be used, and as the non-flammable backup material 8, for example, a glass fiber-based backup material can be used. Here, the ignition temperature of the bead 6 indicates a temperature at which the bead 6 is ignited even when there is no fire type when heated.

Since the seal arrangement portions 40a of the lower frame 42 and the vertical frame 43 have the same shape only in different directions, the seal arrangement portion 40a of the vertical frame 43 will be described as an example here.
As shown in FIG. 3, the seal arrangement part 40a provided in the vertical frame 43 is provided so as to protrude to the opposite side at the tip side of the two protruding wall parts 43b. Each seal arrangement portion 40a includes a distal end wall portion 40b extending from the distal end of the protruding wall portion 43b to the opposite side, and an inner peripheral extending portion extending from the distal end wall portion 40b to the vertical frame inner peripheral surface 43a side. 40c, a central extension 40d that is opposed to the front end wall 40b with a space in the left-right direction and extends from the vicinity of the center of the protruding wall 43b, and extends from the central extension 40d toward the inner peripheral extension 40c And an extended portion 40e facing out.

  The inner peripheral extending portion 40c and the opposing extending portion 40e are arranged linearly along the left-right direction, and a slit 40f is provided between the inner peripheral extending portion 40c and the opposing extending portion 40e. . The inner peripheral extension part 40c is formed wider in the left-right direction than the opposing extension part 40e, and the slit 40f is provided at a position biased toward the central extension part 40d. The central extension 40d has a protrusion 40g that protrudes more to the outdoor side than the opposing extension 40e.

  In the lower frame 42, a portion of the lower frame inner peripheral surface 42b that forms the hollow portion 42a forms the distal end wall portion 40b of the seal arrangement portion 40a, and the distal end portion of the outdoor wall portion 42c that forms the hollow portion 42a and faces the outdoors. The outdoor-side seal arrangement portion 40a is provided, and the outdoor-side seal arrangement portion 40a and the indoor-side seal arrangement portion 40a are provided at an interval from the indoor side.

  The upper frame 41 includes a suspended wall portion 41b that is suspended downward from an upper frame inner peripheral surface 41a that faces the lower frame 42 and has a seal placement portion 40a provided on the outdoor side of the lower end, and an upper frame inner peripheral surface 41a. The upper edge portion 5a of the glass plate 5 is accommodated by the pressing edge 9 locked to the locking portion 41c provided on the upper edge and a part of the inner peripheral surface 41a of the upper frame.

  The glass plate 5 is placed on a nonflammable setting block 10 disposed on the bottom 42d of the hollow portion 42a of the lower frame 42, and a bead 6 provided on the indoor side and a wet seal provided on the outdoor side. It is sandwiched and held by the material 7. More specifically, on the indoor side of the glass plate 5, a bead 6 fitted to the indoor side seal arrangement portion 40 a of the upper frame 41, the lower frame 42, and the left and right vertical frames 43 provided in a rectangular shape is provided. It has been.

  On the outdoor side of the glass plate 5, the lower frame 42, the seal arrangement part 40 a on the outdoor side of the left and right vertical frames 43, and the glass plate 5 between the seal arrangement part 40 a of the pressing edge 9 and the glass plate 5, The non-flammable backup material 8 is provided so as to be inserted in contact with the protrusion 40g and positioned so as to close the slit 40f, and the wet seal material 7 is filled on the inner peripheral side of the backup material 8 Has been. In the present embodiment, one surface of the glass plate 5 corresponds to an outdoor surface, and the other surface corresponds to an indoor surface.

  The bottom portion 42d of the hollow portion 42a that forms the bottom of the glass plate housing portion 40 of the lower frame 42 has a flat bottom portion 42e that is horizontal on the outdoor side, and an inclination that is inclined toward the indoor side on the indoor side of the flat bottom portion 42e. And a bottom portion 42f. A boundary portion between the flat bottom portion 42e and the inclined bottom portion 42f is located on the indoor side from a position facing the indoor seal arrangement portion 40a in the vertical direction.

  The setting block 10 is a piece-like member that is significantly shorter than the entire length of the lower frame 42, and is disposed on the flat bottom 42e. In the flat bottom portion 42e, a portion where the setting block 10 is not disposed is provided with a heating foam material 11 that foams when heated. That is, the heating foam material 11 is also provided at a position that is indoors with respect to the glass plate 5 and that is opposed to the glass plate 5 between the indoor seal arrangement portion 40 a where the beads 6 are provided and the glass plate 5. ing. Moreover, the heating foam material 11 is provided also in the inner surface of the outdoor wall part 42c which forms the hollow part 42a. Here, as the heating foam material 11, for example, thermally expansive graphite can be cited.

  In the glass plate accommodating portion 40 of the upper frame 41, the upper frame 41 and the pressing edge 9 are arranged on the outer peripheral side of the seal arrangement portion 40 a of the hanging wall portion 41 b and on the outer peripheral side of the seal arrangement portion 40 a of the pressing edge 9. The heating foam material 11 is provided over the entire length.

  In the glass plate accommodating portion 40 of the left and right vertical frames 43, the indoor side portion of the inner peripheral surface 43a of the vertical frame, more specifically, the indoor side from the outdoor side position of the glass plate 5 on the outdoor side surface. The heating foam material 11 is provided in the region over the entire length of the vertical frame 43. That is, the heating foam material 11 is also provided at a position facing the glass plate 5 between the glass plate 5 and the indoor side seal arrangement portion 40a where the beads 6 are provided and the glass plate 5. Yes.

  According to the holding structure of the glass plate 5 of this embodiment, since the wet sealing material 7 is provided between the glass plate 5 and the surface on the outdoor side, both surfaces are held by the fixed sealing material. It is possible to provide higher watertightness and airtightness than the case where

  In addition, since a bead 6 that expands and weakens at a temperature lower than the ignition temperature is provided between the glass plate 5 and the indoor side surface, The bead 6 provided between the glass plate 5 and the indoor side surface expands and weakens before it ignites. For this reason, even if the bead 6 is heated by the flame on the outdoor side, the weakened bead 6 swells out of the glass plate housing portion 40 of the frame body 4, so that the bead 6 is glass plate 5 before firing. And the frame 4 no longer exist. Therefore, in the case of a fire where the outdoor side is the source of fire, the bead 6 on the indoor side of the glass plate 5 does not ignite, so it is possible to prevent the spread of fire to the indoor side. For this reason, it is possible to provide the holding structure of the glass plate 5 excellent in watertightness / airtightness and fire resistance.

  Moreover, the heating foam material 11 provided in the indoor side with respect to the glass plate 5 will press the bead 6, if it heats and expands. At this time, the heating foam material 11 has a volume increase rate due to foaming higher than the volume increase rate due to thermal expansion of the beads 6, and the volume increase rate is also large. For this reason, when the heated foam material 11 starts to foam and the volume increases, the heated foam material 11 first starts to contact and press the bead 6 that has begun to thermally expand. On the other hand, when the bead 6 continues to be heated, the volatile gas is removed and the mass decreases and becomes gradually weaker. By the time the heated foam material 11 is completely foamed, the bead 6 becomes so brittle that the glass plate 5 cannot be held. Therefore, the bead 6 is sealed by the foamed heated foam material 11 with the indoor seal arrangement portion 40a and the glass plate. 5 is gradually pushed out of the frame 4. For this reason, it is possible to discharge | emit the bead 6 which became weak by heating earlier and more reliably from between the glass plate 5 and the frame 4 before the said bead 6 ignites.

  Further, since the foamed heated foam material 11 enters between the indoor side surface of the glass plate 5 and the frame body 4, when the beads 6 are pushed out and no longer exist, the foamed heated foam material 11 is replaced with the glass plate. 5 exists between the indoor side surface 5 and the frame member 4. For this reason, even if the bead 6 is not present, the glass plate 5 can be held by the foamed heated foam material 11 and the wet sealing material 7. At this time, the temperature at which the bead 6 becomes so brittle that the glass plate 5 cannot be held is sufficiently lower than the ignition temperature at which the bead 6 is heated and ignites even if there is no fire, and before the bead 6 reaches the ignition temperature, the glass plate Since it is extruded from between 5 and the frame material 4, it is possible to prevent the bead 6 from igniting between the glass plate 5 and the frame material 4 and in the vicinity thereof.

  Further, since the backup material 8 provided together with the wet seal material 7 is nonflammable, the backup material 8 will not burn even if the wet seal material 7 is melted. For this reason, it is possible to provide higher fire resistance.

  In the above-described embodiment, the example in which the wet sealant 7 is provided on the outdoor side of the glass plate 5 and the bead 6 is provided on the indoor side has been described. However, as shown in FIG. Depending on the site where the joinery 1 is installed, such as when it is placed on the indoor side, or there is a device or equipment that may become a fire source on the indoor side, as shown in FIG. A bead 6 may be provided on the outdoor side, and a wet sealant 7 may be provided on the indoor side.

  In the said embodiment, although demonstrated taking the case of the frame 4 with which the fitting 1 for FIX windows is provided as an example, not only this but the shoji 13 with which the frame 12 is mounted | worn as shown in FIG. You may hold | maintain the glass plate 5 of the housing 14 as a frame provided with the bead 6 and the wet sealing material 7. FIG.

  In the said embodiment, although the netted glass plate was mentioned as an example as an example of a glass plate, it is not restricted to this, What is necessary is just a glass plate provided with fire resistance, such as fire resistance and heat resistance.

  Moreover, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

1 joinery, 4 frame, 5 glass plate, 5a peripheral edge (upper edge, lower edge, left and right edges)
6 beads, 7 wet sealant, 8 backup material, 11 heated foam,
12 frame, 14 frame

Claims (4)

A glass plate holding structure for holding a peripheral edge of a glass plate with a net or fireproof property with a frame,
The glass plate is
An indeterminate sealing material provided between one surface of the glass plate and the frame;
A holding structure for a glass plate, which is provided between the other surface of the glass plate and the frame and is held by a fixed sealing material that expands and weakens at a temperature lower than an ignition temperature. . The glass plate holding structure according to claim 1,
A holding structure for a glass plate, wherein a heating foam material is provided on the other surface side of the glass plate. The glass plate holding structure according to claim 2,
The heated foam material is heated and foamed, and presses the expanded sealing material to enter between the other surface of the glass plate and the frame body. . A glass plate holding structure according to any one of claims 1 to 3,
The glass plate holding structure, wherein the irregular sealing material is provided together with a nonflammable backup material.

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