JPH0540587U - Glass fire door mating structure - Google Patents

Abstract

(57) [Summary] [Purpose] The glass panel mating part of a wooden fire door is fixed with a siliceous adhesive for the purpose of ensuring stability in disaster prevention and lighting. [Structure] A glass panel 3 constituting a wooden fire door,
A glass panel fitting for a wooden fire door in which a fitting portion 5 such as a frame or a crosspiece 4 is fixed by an inorganic adhesive 6 mainly composed of silicic acid, and an exposed portion thereof is covered with a caustic agent 9 having a sheer property Combined structure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a wooden fire door that complies with a test standard for fire doors based on Ministry of Construction Notification No. 1125 and has a glass panel.

[0002]

[Prior Art]

 Since the promulgation of Ministry of Construction Notification No. 1125 in 1990, development and approval of wooden fire doors have been in progress, but these wooden fire doors are treated with flame retardants containing nitrogen, phosphorus, etc. The treated wood and the composite material with the inorganic noncombustible material are used for the panel of the wooden fire door. However, when these doors are used for the entrance, etc., the inside of the entrance becomes dark and it is necessary to illuminate. Therefore, by changing all or part of the panel to a glass panel, it becomes easy to illuminate, and the above problems are solved.

Generally, a glass panel is fixed by a wooden glass retainer forming a crosspiece or the like via a cushioning material such as foamed polyethylene, and then filled with a caulking agent such as a silicone resin for storage. A method is used in which a heated foam material that forms a non-combustible layer when heated is inserted into the fitting part of the glass panel and is fixed by a wooden glass retainer and stored.

[0004]

[Problems to be solved by the device]

 However, the usual method of filling caulking material made of resin or elastomer is not preferable because there is a fire prevention problem such that these constituent materials burn out in case of a fire, and a heating foam material is inserted. Although the method is an effective means against fire, the formed incombustible layer is fragile, and it is unfavorable because it cannot withstand the impact test in the test method described and causes the glass panel to fall off.

According to the present invention, a wooden fire door having a glass panel according to the above-mentioned notice, and particularly a wooden type B fire door having a flameproof performance of 20 minutes or more is fitted to the glass fire door. It provides the structure.

[0006]

[Means for Solving the Problems]

 Means for solving the above problems will be described with reference to Examples and the drawings.

FIG. 1 is a front view, and FIG. 2 is a sectional view taken along the line AA ′ of FIG. 1. In the wooden fire door (1) to be 3), the fitting part (5) of the crosspiece (4) for accommodating the glass panel (3) is filled with an inorganic adhesive (6) such as sodium silicate. The glass panel (3) is housed and then fixed with a wooden glass retainer (7) and a wooden screw (8). Further, in order to prevent rainwater from entering through the fitting portion (5), it is preferable to coat with a water-repellent caulking agent (9) made of butyl rubber or silicone resin.

The inorganic adhesive (6) used in the present invention is an adhesive composed mainly of soda silicate, inorganic fibers such as glass fibers, and inorganic fillers such as calcium carbonate. On the other hand, when heated, the water of crystallization contained in the sodium silicate scatters to become a non-combustible substance, which firmly fixes the glass panel. Examples of commercially available products include AS Bond manufactured by Asano Slate Co., Ltd. and Isobond manufactured by Isolite Industry Co., Ltd.

The wooden door (1) having the glass panel fitting structure of the above-mentioned embodiment is a fire door test method according to Ministry of Construction Notification No. 1125, and there is no dropout or flame penetration, and it functions as a Class B fire door. Was found to have.

As a comparative example, in a glass panel fixed with a silicone resin-based caulking agent, flame penetration was observed after 8 minutes of heating, and the glass panel was fixed with a heated foam material and a glass retainer. Although no penetration of the flame during heating was observed, the glass panel was found to have fallen off in the impact test.

[0011]

[Effect of the device]

 The present invention is a fire door installed in an opening where there is a risk of fire spread, and is especially designed for the entrance of a detached house, etc. It not only ensures safety in disaster prevention but also tends to get dark. There is an effect that the entrance is illuminated and the entrance space is brightened.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a wooden fire door having a glass panel fitting structure of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA ′ in FIG.

[Explanation of symbols]

 1 Wooden fire door 2 Panel part 3 Glass panel 4 Crosspiece 5 Fitting part 6 Inorganic adhesive 7 Glass retainer 8 Wood screw 9 Caulking agent

Claims (2)

[Scope of utility model registration request] 1. A wood fire prevention system characterized in that a fitting portion between a glass panel constituting a wood fire prevention door and a wood member such as a frame and a crosspiece is fixed by an inorganic adhesive mainly composed of siliceous material. Door glass panel mating structure. 2. A fitting portion between a glass panel constituting a wooden fire door and a wooden member such as a frame and a crosspiece is fixed by an inorganic adhesive mainly composed of siliceous material, and the inorganic adhesive is exposed. A glass panel fitting structure for a wooden fire door, characterized in that its part is coated with a water-repellent caulking agent.