JPH0448393U

JPH0448393U -

Info

Publication number: JPH0448393U
Application number: JP9147690U
Authority: JP
Priority date: 1990-08-31
Filing date: 1990-08-31
Publication date: 1992-04-24

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例の防火用ドアーの
水平断面図、第２図は第１図のシール材の圧縮を
示す説明図、第３図は第２実施例のシール材の部
分斜視図、第４図は第３実施例のシール材の断面
図である。１……ドアー、３……ヒンジ、４……シール材
、４ａ……段部、６……凹溝、７……係合穴、８
……突起。 Fig. 1 is a horizontal sectional view of a fire door according to the first embodiment of the present invention, Fig. 2 is an explanatory diagram showing compression of the sealing material of Fig. 1, and Fig. 3 is a portion of the sealing material of the second embodiment. The perspective view and FIG. 4 are cross-sectional views of the sealing material of the third embodiment. DESCRIPTION OF SYMBOLS 1... Door, 3... Hinge, 4... Seal material, 4a... Step part, 6... Concave groove, 7... Engagement hole, 8
……protrusion.

Claims

[Scope of Claim for Utility Model Registration] (1) A door is attached to a wall opening via a support shaft, and the door is constructed so that it can be opened and closed by swinging about the support shaft, and the peripheral edge of the door and the wall opening are In a fire prevention door having an elastically deformable fireproof sealing material provided between the edge and the edge, the sealing material facing one periphery of the door's spindle side forms a stepped portion that is pressed against the corner of the door's spindle side. A fire prevention door characterized in that, in the closed position of the door, the shaft side end of the door compresses the sealing material adjacent to the step. (2) The fire prevention door according to claim 1, wherein an arcuate groove is formed at a corner of a portion where the cross-sectional shape of the sealing material is an internal angle. (3) In order to fix the sealing material to a wall or support material, an engagement hole with a large inner diameter is provided on the mounting surface of the sealing material, and a hole that is engaged with the engagement hole of the sealing material is provided on the wall or support material side. A fire prevention door characterized by having a protrusion with a large diameter at the tip.