JP2510812Y2 - Front door with fire protection function - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is provided with a light with excellent lighting and crime prevention, which is used for prefabricated houses and apartments in fireproof areas or semi-fireproof areas. It also relates to a front door having a fireproof function.

(Prior art) Recently, the entrance doors used in prefabricated houses and multi-family houses have a large area with excellent security and design to improve the lighting performance in order to give a sense of openness and a sense of openness. Many are equipped with lights. This light is formed mainly by mounting a transparent laminated glass on a required portion of the door via a holding frame.

(Problems to be solved by the invention) Although the entrance door that is fitted with the above laminated glass and made light is successful in terms of daylighting, crime prevention and design, it is JIS-A1311 compliant in terms of fire protection. There is a drawback that it does not hold the type B fire protection function that passes the test.

As one of the reasons for not passing this fireproof test, when the laminated glass used for lighting is exposed to high temperature, the adhesive used for bonding the laminated glass melts and flows down from between the laminated glass, This is because it flows out to the side facing the room on the side opposite to the side exposed to the high temperature and causes an ignition phenomenon.

Therefore, this type of entrance door cannot be used for prefabricated houses or apartments in fireproof areas or semi-fireproof areas.

Since the entrance door that uses laminated glass to provide a light has many advantages as described above, it is difficult for a house maker to throw it away. We are trying to improve the fire prevention function, but it is difficult to improve the fire prevention function of the B type of the entrance door with such reinforcement contents.

(Means for Solving the Problem) The present invention has been made by paying attention to such a conventional problem, and a large number of fire prevention tests were conducted to elucidate the ignition phenomenon, and the inside of the entrance door was examined. The purpose of the present invention is to solve the above problems by equipping a simple device.

The present invention is a receiver for retaining the adhesive material of the laminated glass that melts and flows down in the door frame below the laminated glass that is attached to the required portion of the door frame via the front and back holding molds. It is a front door having a fireproof function, characterized by having a storage device.

(Function) The entrance door is provided below the laminated glass even if the adhesive used for bonding melts and flows down between the laminated glasses when the outside of the laminated glass is exposed to a high temperature due to an external fire. Since it does not stay in the received receiving device and flow out to the outside, and it does not emit flame to the outside even if it is heated to a high temperature and burns in the receiving device, it exhibits an excellent fire prevention function.

In addition, the entrance door can be manufactured at a low cost because the structure of the receiving device is simple and easy to manufacture, and because it is easy to attach to the door frame, even if the receiving device is equipped, the cost is about that. It does not rise.

(Embodiment) The present invention will be described in detail below based on an embodiment shown in FIGS. 1 is a frame member 2 having a U-shaped cross section,
Inner / outer frame members 2 ₁ ′, 2 ₁ ; 2 ₂ ′, 2 ₂ symmetrically arranged with their flanges facing each other on the right outer edge portion at required intervals
2 ₄ ', 2 _4, and the flange inwardly into the outer frame member 2 ₃ disposed on the outer edge of the lower, the inner and outer frame members 2 _1', 2 ₂ ', 2 _4';
2 ₁ ； 2 ₂ ， 2 ₃ ， 2 ₄ The side plates 3 and 3 ′ are stretched by adhesion or welding through the same outer side surface to form inner and outer frame members 2 ₁ ′, 2 ₂ ′,
2 ₄ '; 2 _1, 2 _2, 2 _3, 2 ₄ is formed by connecting the fixed door frame of rectangular shape having an opening 4 in the central portion, disposed at the symmetrical inside the door frame 1 5 Inner and outer frame materials 2 ₁ ′, 2 ₁ ; 2 ₂ ′, 2 ₂ ;
A heat-resistant interposing material filled between 2 ₄ ′ and 2 ₄ and 6 is a handle fixed to the left end on the front side of the door frame 1.

Reference numeral 7 is a laminated glass adhered with an adhesive material 8. The packing 10 made of heat-resistant synthetic rubber or the like, which is locked to the packing holding portion 9 on the outer peripheral edge, is pressed against the side plate 3 so that the opening 4 is opened from the front side. is fitted inserted, a holding mold 13 fixed by screws 12 at a plurality of positions fixed leg 11 which is positioned above the projecting inwards in the upper frame member 2 ₁ ', fitted from the back side to the opening 4 Inserted, fixed leg
11 and the fixed leg 11 are connected to each other in the vicinity of the distal end of the fixed leg 11 and a locking portion 15 is formed. A holding formwork 19 fixed by combining an engaging portion 18 composed of an engaging leg 17 that engages with the tip of the stop leg 14 and locks the packing locking portions 20, 20 'formed on the inside of each. 'while clamping the both sides outer peripheral edge of the laminated glass 7 via a left-right frame members 2 _2' packing 21 and 21 of the same material as the packing 10 that is, the fixed leg 11 in the vicinity below the 2 ₄ ' The support plate 23 of the L-shaped support fitting 22 fixed by the screw 12 'holds the lower left and right sides of the laminated glass 7 via the buffer plate 24 made of an appropriate material such as heat-resistant synthetic rubber. ing.

25 is a predetermined position below the laminated glass 7 inside the door frame 1,
The box-shaped device main body 26 having a predetermined depth and a length larger than the width of the laminated glass 7, in which the upper ends of the outer surfaces of the front and back sides are fixed to the inner surfaces of the side plates 3 and 3'by welding or the like, Both support plates with a U-shaped cross section that is inclined toward one side 2
7,27 are symmetrically arranged so as to incline toward the center, and a wire net 28 having a required fine mesh is erected on the lower end of the inner wall thereof.
The receiving device is composed of a blocking member 29 having a predetermined depth, the upper end of the outer wall of which is fixed to the inner surface of the upper end of the device body 26 by welding or the like, and a length larger than the width of the laminated glass 7.

Reference numeral 30 denotes a door frame 1, two holding molds 13 and 19 fitted and fixed to the opening 4 of the door frame 1 from the front and back surfaces, a laminated glass 7 held between both holding molds, and below the laminated glass 7. It is an entrance door having a fireproof function, which is composed of a receiving device 25 provided in the door frame 1.

The front door 30 above is outside due to an external fire (the front of Fig. 1).
When the laminated glass 7 is exposed to a high temperature, the laminated glass 7 becomes high in temperature together with the door frame 1 and the holding mold 13, and the adhesive material 8 used for adhering the laminated glass 7 melts and flows down to the blocking member 29. Even if the adhesive material 8 stays in the main body 26 of the apparatus through the wire net 28 and does not flow out to the outside, and the receiving apparatus 25 becomes hot and the adhesive material 8 is burned and a flame is generated. , Flame is wire mesh 28
Like the principle of the oil stove, it does not become long flame, so it does not leak to the outside and exhibits an excellent fire protection function.

Further, the entrance door 30 can be manufactured at low cost because the structure of the receiving and receiving device 25 to be installed is simple and easy to manufacture. Moreover, since the door frame 1 can be easily attached, even if the receiving and receiving device is equipped. The cost will not rise that much.

In the above-described embodiment, the device body 26 of the receiving device 25 is formed in the shape of a rectangular box in cross section. However, the adhesive 8 flowing down can be retained and both side plates 3 and 3'can be stably fixed near the upper end. If it has a plane of a certain width parallel to the plates 3 and 3 ', it is not necessarily restricted to this shape.

Further, a wire net 28 having a required fine mesh was used for the receiving / receiving device 25. Instead of the wire net 28, a metal plate or a ceramic plate having a large number of adjacent small holes (a wire net including the wire net) is used.
May be used.

(Effects of the Invention) Since the present invention has the above configuration, it has the following effects.

(1) By installing a simple device on the entrance door using laminated glass, it was possible to add a fireproof function, so it can be used in various houses in fireproof areas or semi-fireproof areas. Economic effect is extremely large.

(2) Since it can be used for various houses in fire-prevention areas or semi-fire-prevention areas, it is possible to improve the lighting and design of the houses, which can contribute to sales increase.

(3) Equipment that has a fire protection function can be manufactured at low cost and is easy to install, so it can be provided at a relatively low cost despite having excellent functions, leading to sales expansion. Together with this, it contributes to the increase of corporate profits.

[Brief description of drawings]

1 is a front view, FIG. 2 is a partially cutaway AA sectional view, and FIG. 3 is a partially cutaway BB sectional view. 1 ... Door frame, 2 ... Frame material, 2 ₂ '... Left inner frame material, 2 ₄ ' ...
Right inner frame material, 4 ... Opening, 7 ... Laminated glass, 8 ... Adhesive material, 13,18 ... Holding form, 21,21 '... Packing, 22
…… Supporting metal fittings, 25 …… Receiving device, 26 …… Device body, 27 ・ ・ ・
… Support plate, 28 …… Wire mesh, 29 …… Blocking member, 30 …… Entrance door.

Claims (3)

(57) [Scope of utility model registration request] 1. An adhesive material for the laminated glass, which is melted by heat and flows down, is retained in the door frame below the laminated glass that is attached to a required portion of the door frame via holding molds on the front and back sides. An entrance door with a fire prevention function, which is equipped with a receiving device. 2. A pair of support plates having a U-shaped cross-section whose upper surface is inclined to one side are symmetrically arranged so as to be inclined toward the center, and a required fine mesh material is installed on the lower end of the inner wall. It consists of a rectangular box-shaped device body having a predetermined depth and a length larger than the width of the laminated glass, which holds the blocking member at the upper end so that the blocking member having a depth and the mesh member are at a required height position. An entrance door having a fireproof function according to claim 1, characterized in that the entrance door has a receiving device. 3. The laminated glass is sandwiched by both holding molds attached to the opening of the door frame from the front and back via packing, and the lower surface is held by both supporting metal fittings fixed to the door frame. An entrance door having a fireproof function according to claim 1 or 2 characterized in that the utility model registration claim.