JPH09184373A - Fitting structure of heat insulating fittings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a frame structure even in a fire by using a flame retardant expansion body. SOLUTION: A heat insulating fitting 3 prepared by connecting an indoor-side member 30 and an outdoor-side member 31 facing each other in a state of noncontact, with connecting resin bodies for heat insulation interposed, is held in a frame body 1 fixed in an opening part of a building. A first connecting resin body 2A for heat insulation facing a passage of a flame in a fire of which the entrance is formed by a gap between the frame body 1 and the indoor-side member 30 and which leads to a gap between the frame body 1 and the outdoor- side member 31, is covered for protection with a flame retardant expansion body to be formed of a first thermal expansion material 4A at the time of heating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating fitting mounting structure.

[0002]

2. Description of the Related Art As a heat insulating fitting for reducing the amount of heat transfer between the outdoor side and the indoor side as much as possible, an outdoor member and a room facing each other in a non-contact state via a heat insulating connecting resin body are used. A split sash or the like in which an inner member is connected has been proposed, and a polyimide resin is generally used as a heat insulating connection resin body in view of cost, rigidity, strength, etc. required as a structural material.

On the other hand, when such a heat insulating fitting is used as, for example, a door body, in the event of a fire, the heat insulating connecting resin body is melted or burned down due to a flame or the like flowing in from the boundary between the door body and the frame body, and thus the composite resin The layer structure cannot be maintained, which may cause an unexpected disaster.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a heat insulating fitting mounting structure capable of maintaining a frame structure even in the event of a fire.

[0005]

According to the present invention, the above object is to provide an indoor member facing in a non-contact state with a heat insulating connecting resin body 2 in a frame body 1 fixed to an opening of a building. Thirty
And an outdoor member 31 are connected to each other, and in the event of a fire, the heat insulating fitting 3 is used as an inlet through the gap between the frame 1 and the indoor member 30 and exits into the gap between the frame 1 and the outdoor member 31. The first heat insulating connecting resin body 2A facing the flame passage is
It is achieved by providing a mounting structure for a heat insulating fitting that is covered with and protected by a flame-retardant expander 5 generated from the thermal expansion material 4A.

In FIG. 1, assuming that a fire occurs inside the room, the synthetic resin cushioning body 70, packing 71, and tight material 72, etc., mounted on the heat insulating fitting 3 are burned or weathered by flames or heat. The buffer 7
A flow path of smoke or a flame from the mounting portion of 0 to the mounting portion of the tight material 72 is formed.

On the other hand, since the temperature of the indoor member 30 rises due to the fire, the first thermal expansion material 4A starts to expand due to this temperature or due to the flame flowing through the above-mentioned flow path, and the flame-retardant expandable body 5A is removed. To generate. In the expander 5A, the flame directly touches the first heat insulating connecting resin body 2A facing the flow path,
Alternatively, it is prevented that the first heat insulating connecting resin body 2A is burned, softened, or the like to become unable to function as a structure maintaining body due to a temperature rise due to radiant heat from a flame.

It is sufficient that the first thermal expansion material 4A is arranged on a branch flow path branching from the flow path and heading for the first heat insulating connecting resin body 2A. As proposed and shown in FIG. 1, when it is fixed in advance on the first heat insulating connecting resin body 2A, it is possible to save the trouble of separately fixing the first thermal expansion material 4A.

Further, in claim 3, there is proposed a structure for closing the entire flow path by the expansion body 5 from the first thermal expansion material 4A. That is, on the frame 1 side, the auxiliary thermal expansion material 4D is fixed so as to face the first thermal expansion material 4A, and the expansion body 5A generated by the first thermal expansion material 4A and the auxiliary thermal expansion material 4D. 5D blocks the flow path to prevent smoke and flame from leaking to the outside of the room.

In the invention according to claim 4, the heat insulating fitting 3
A structure effective when the opening blocker 6 such as the fireproof glass 60 is attached to the above and there is a concern that the inflow of flame or the like from the attachment part of the opening blocker 6 at the time of a fire is proposed.

As the opening blocker 6, a net glass, a super heat-resistant crystallized glass, a special glass coated with a metal film called "multi-light ray balk" made by Nippon Sheet Glass, or "Pilot Stop" made by Flaha Glass, Germany A fireproof glass 60 such as a multi-layer glass having a laminated sodium silicate layer called ".
As described in (1), it may be a double glazing in which the above-mentioned various fireproof glasses 60 are arranged facing the outdoor side.

When a fire occurs and the sealant material 61 fixing the opening blocker 6 is burned or weathered, the first part of the sealant material 61 is used as an inlet.
The flow path of the flame toward the heat insulating connection resin body 2A is formed, but in the invention of claim 4, the flow path is closed by the expander 5B from the second thermal expansion material 4B. Therefore, protection of the first heat insulating connecting resin body 2A is achieved.

The second thermal expansion material 4B can be arranged at an appropriate position as long as it is in the above-mentioned flow path. However, as proposed in claim 5, in the mounting groove 32 of the opening blocker 6. When fixed on the facing second heat insulating connecting resin body 2B, the expansion body 5B from the second thermal expansion material 4B is filled in the mounting groove 32 and passes through the mounting groove 32 to the outdoor side. It is possible to simultaneously block the flow path of smoke or the like that escapes.

In this case, as described in claim 6,
By fixing the third thermal expansion material 4C around the opening blocker 6, it becomes possible to completely block the flow path passing through the mounting groove 32.

The first, second, and third thermal expansion materials 4 are used.
A, 4B, 4C, and the auxiliary thermal expansion material 4D are various as long as they are expanded by heating to a predetermined temperature to increase their volume, and the expanded body produced has flame retardancy. The above materials can be used and are generally obtained by mixing an expander, which is the main component of the expandable body, and a binder.

As a target for selection, the expansion start temperature is
When a fire occurs, it is desirable that the indoor side member 30 starts to expand near the temperature that rises due to the heat of the fire, that is, about 180 ° C., and exhibits remarkable expansion at about 250 ° C.

Further, if the expansion coefficient is about 10 to 15 times, there is no need to dispose an excessively large thermal expansion material, which is practical, and as a thermal expansion material having these performances, a graphite expansion material is used. , And / or a material containing an ammonium polyphosphate-based expansive material can be used, and specifically, “Dunseal-made by Furukawa Techno Material Co., Ltd.”
D "(trade name) or its equivalent material can be used.

Various means can be adopted for the arrangement method of the thermal expansion materials 4A, 4B, ... If the thermal expansion materials 4A, 4B ,. It is possible, and when solid, means such as sticking can also be adopted. Since the above-mentioned "Danseal-D" is supplied in the form of a tape, it is desirable to fix it by adhesion or the like.

[0019]

1 is a vertical sectional view of a fire door to which the present invention is applied. It should be noted that this figure shows only the lower half of the opening of the building, and the upper half is formed substantially symmetrically with the illustrated portion.

In FIG. 1, a window frame (frame body 1) fixed to the outer wall 8 is formed by connecting an indoor side window frame body 10 and an outdoor side window frame body 11 made of an aluminum material to a heat insulating connecting resin body 2D, 2
It is configured by connecting with E. Insulation connection resin body 2D, 2E
Is formed of a polyimide resin, and the fitting protrusions 20 formed on both side edges are elastically fitted into the recesses of the corresponding member and mounted.

Further, the indoor window frame body 10 has a hinge member holding groove 10a, and the glass sliding door (heat insulating fitting 3) is secured by the hinge member (not shown) fixed in the hinge member holding groove 10a. It is rotatably supported in the window frame 1.

The glass shoji 3 includes a frame 33 made by connecting an aluminum indoor side frame member (indoor side member 30) and an outdoor side frame member (outdoor side member 31), and a double-layer glass (opening blocker 6). The glass mounting groove 32 is formed by the outdoor side member 31 and the pushing edge 30a connected to the indoor side member 30.

In FIG. 1, reference numeral 70 denotes the indoor member 30.
, 72 is a tight material mounted on the outdoor frame 33, and 71 is a packing mounted on the outdoor window frame 11, each of which is made of synthetic rubber, synthetic resin or the like.

Reference numerals 2A and 2B denote first and second heat insulating connecting resin bodies for connecting the indoor side member 30 and the outdoor side member 31, respectively, like the heat insulating connecting resin bodies 2D and 2E described above.
It is made of polyimide resin.

On the other hand, the multi-layer glass 6 is formed by facing the net-filled glass (fireproof glass 60) and the float glass through a spacer and adhering them with a sealing sealant material 62 filled in the outer periphery of the spacer. It A thiocol sealant is used as the sealing sealant material 62.

The multi-layered glass 6 is mounted in a state where it is fitted in a glass mounting groove 32 formed in the frame 33, and the outer peripheral side wall of the multi-layered glass 6 and the outdoor side member 31, and the pushing edge. "Silicone sealant" (sealant material 61) manufactured by Kyoritsu Chemical Industry Co., Ltd. is filled between 30a and 30a to fix the double glazing 6. In FIG. 1, 32
Reference numeral a is a piece-shaped spacer that is placed on the outdoor member 31 and supports the double-glazed glass 6.

Further, the first heat insulating connecting resin body 2A arranged facing the inner wall of the frame body 1, the second heat insulating connecting resin body 2B arranged facing the glass mounting groove 32, and the above-mentioned The first and second thermal expansion materials 4A and 4B and the auxiliary thermal expansion material 4D are fixed to the thermal insulation connection resin body 2D on the side of the frame 1 facing the first thermal insulation connection resin body 2A, respectively. A third thermal expansion material 4C is provided on the outer peripheral edge of the double-glazing unit 6.
Is fixed.

These first, second and third thermal expansion materials 4A,
4D, 4C, and the auxiliary thermal expansion material 4D are "Dunseal-D" (trade name) manufactured by Furukawa Techno Material Co., Ltd.
Is used. The above-mentioned “Dansir-D” is a thermal expansion material that contains a graphite-based expansion material and / or an ammonium polyphosphate-based expansion material and starts expansion at about 180 ° C. to generate a flame-retardant expansion material. 10 at about ℃
It exhibits a remarkable expansion of about 15 times, and it is fixed to the corresponding substrate by adhering a tape-shaped product with an appropriate adhesive.

Therefore, in this embodiment, when a fire occurs inside the room, the heat insulating connection is caused by heat transfer from the room side member 30 or the window frame 1 or the entry of a flame from the site where the shock absorber 70 is mounted. The resin bodies 2A, 2B ... And the thermal expansion materials 4A, 4B ... Fixed to the double glazing 6 expand to generate flame-retardant expanders 5A, 5B.

FIG. 2 shows the inflated state of each inflatable body 5A, 5B, ... When a fire occurs inside the room, with hatching rising to the right. The flow path is completely blocked by the expanders 5A and 5D from the first thermal expansion material 4A and the auxiliary thermal expansion material 4D, and the packing 71
Flames and smoke from the mounting portion and the mounting portion of the tight material 72 are prevented from flowing out of the room.

On the other hand, the glass mounting groove 32 is almost filled with the expander 5B made of the second thermal expander 4B and the expander 5C made of the third heat expander 4C, and the pushing edge 3
0a and the double-glazed glass 6 serve as an inlet and the gap between the outdoor frame 33 and the double-glazed glass 6 serves as an outlet.

Further, in this embodiment using a thiochol sealant as the sealing sealant material 62,
The sealing sealant material 62 partially elutes due to conduction heat, but the expansion body 5 is replaced in the mounting portion of the sealing sealant material 62 to push up the non-eluted residual portion of the sealing sealant material 62 to cause a duplicate. Separation of the layer glass 6 is prevented.

[0033]

As is apparent from the above description, according to the present invention, the frame structure can be maintained even in the case of a fire, so that the fire protection performance can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing the present invention.

FIG. 2 is a diagram illustrating the operation of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame body 2 Heat insulation connection resin body 2A 1st heat insulation connection resin body 2B 2nd heat insulation connection resin body 3 Heat insulation fitting 30 Indoor member 31 Outdoor member 32 Mounting groove 4A First thermal expansion material 4B 2 Thermal expansion material 4C Third thermal expansion material 4D Auxiliary thermal expansion material 5 Expander 6 Opening blocker 60 Fire protection glass

Claims (7)

[Claims] 1. A heat insulating fitting in which an indoor side member and an outdoor side member facing each other in a non-contact state are held in a frame body fixed to an opening of a building via a heat insulating connecting resin body, In the event of a fire, the first heat-insulating connecting resin body facing the flow path of the flame passing through the gap between the frame body and the outdoor-side member as the inlet is set to the first thermal expansion. An insulating fitting installation structure that is protected by covering it with a flame-retardant expansive body that is generated when it is heated. 2. The mounting structure for a heat insulating fitting according to claim 1, wherein the first thermal expansion material is fixed on the first heat insulating connecting resin body. 3. An auxiliary thermal expansion material, which generates a flame-retardant expansion material when heated, is fixed to a position of the frame body directly facing the first thermal expansion material. The heat insulating fitting mounting structure according to claim 1 or 2, wherein the flow path is closed by an expander generated by an auxiliary thermal expansion material. 4. The heat insulating fitting has an opening to which an opening closing body is fitted and mounted so as to be closed, and a flame from a mounting portion of the opening closing body to the first heat insulating connecting resin body in the event of a fire. The heat insulating fitting mounting structure according to claim 1, 2 or 3, wherein the flow path is closed by a flame-retardant expander from the second thermal expander to protect the first heat insulating connecting resin body. 5. The second thermal expansion material is fixed on a second heat insulating connecting resin body facing the mounting groove of the opening closing body, and the mounting groove is formed by the expansion body of the second thermal expansion material. The heat insulating fitting mounting structure according to claim 4, which prevents the inflow of smoke into the inside. 6. A third thermal expansion material is fixed around the opening closing body, and the expansion body by the third thermal expansion material prevents the inflow of smoke and the like into the mounting groove. 5. The heat insulating fitting mounting structure according to any one of 5 above. 7. The mounting structure for a heat insulating fitting according to claim 4, 5 or 6, wherein the opening closing body is a double-layered glass in which a fireproof glass is arranged facing the outdoor side.