Title:
FIRE DOOR
Document Type and Number:
Japanese Patent JP2017095978
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fire door capable of freely opening and closing a slave door through which a temporary cable is inserted dependently or independently with respect to a master door.SOLUTION: A fire door 10 includes a master door 1 and a slave door 2 of a single swing type. The master door 1 rotatably connects one side surface to a door frame 11f via a first hinge 11h, and has a cutout 1k in a lower corner portion on the first hinge 11h side. The slave door 2 rotatably connects one side surface to the door frame 11f via a second hinge 3 arranged coaxially with the first hinge 11h, and can close the cutout 1k from a heated side toward a non-heated side. The slave door 2 has an opening 2h through which a temporary cable C can be freely inserted, and locking means 4 which can lock the slave door 2 to a floor surface FL in such a manner of being hardly opened and closed. The master door 1 and the slave door 2 can be integrally opened and closed when the slave door 2 is not locked to the floor surface FL, and only the master door 1 can be opened and closed without moving the temporary cable C when the slave door 2 is locked to the floor surface FL.SELECTED DRAWING: Figure 1
Inventors:
YAMAO JUNICHI
Application Number:
JP2015229087A
Publication Date:
June 01, 2017
Filing Date:
November 24, 2015
Export Citation:
Assignee:
CHUGOKU ELECTRIC POWER CO INC
International Classes:
E06B5/16; A62C2/06; E05C1/04; E05F1/12; E05F3/14; E05F3/20; E06B7/28; E06B7/32
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi