JPS5233341A - Fire door opening device - Google Patents

Fire door opening device

Info

Publication number
JPS5233341A
JPS5233341A JP50108501A JP10850175A JPS5233341A JP S5233341 A JPS5233341 A JP S5233341A JP 50108501 A JP50108501 A JP 50108501A JP 10850175 A JP10850175 A JP 10850175A JP S5233341 A JPS5233341 A JP S5233341A
Authority
JP
Japan
Prior art keywords
opening device
door opening
fire door
release
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP50108501A
Other languages
Japanese (ja)
Other versions
JPS5442529B2 (en
Inventor
Teruo Watari
Toshihiko Tamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hochiki Corp
Original Assignee
Hochiki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hochiki Corp filed Critical Hochiki Corp
Priority to JP50108501A priority Critical patent/JPS5233341A/en
Publication of JPS5233341A publication Critical patent/JPS5233341A/en
Publication of JPS5442529B2 publication Critical patent/JPS5442529B2/ja
Granted legal-status Critical Current

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  • Special Wing (AREA)

Abstract

PURPOSE: To enable a permanent-magnet-incorporated-fire-door-opening device to prevent its release from being re-locked at the time of actuation of the release by moving it a way from the door, and also to insure transmission of signal to a next release without requiring an expensive timer circuit.
COPYRIGHT: (C)1977,JPO&Japio
JP50108501A 1975-09-09 1975-09-09 Fire door opening device Granted JPS5233341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50108501A JPS5233341A (en) 1975-09-09 1975-09-09 Fire door opening device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50108501A JPS5233341A (en) 1975-09-09 1975-09-09 Fire door opening device

Publications (2)

Publication Number Publication Date
JPS5233341A true JPS5233341A (en) 1977-03-14
JPS5442529B2 JPS5442529B2 (en) 1979-12-14

Family

ID=14486367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50108501A Granted JPS5233341A (en) 1975-09-09 1975-09-09 Fire door opening device

Country Status (1)

Country Link
JP (1) JPS5233341A (en)

Also Published As

Publication number Publication date
JPS5442529B2 (en) 1979-12-14

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