JPS52150199A - Lock for fire-proofing door - Google Patents

Lock for fire-proofing door

Info

Publication number
JPS52150199A
JPS52150199A JP6738076A JP6738076A JPS52150199A JP S52150199 A JPS52150199 A JP S52150199A JP 6738076 A JP6738076 A JP 6738076A JP 6738076 A JP6738076 A JP 6738076A JP S52150199 A JPS52150199 A JP S52150199A
Authority
JP
Japan
Prior art keywords
lock
fire
voltage
proofing door
proofing
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.)
Pending
Application number
JP6738076A
Other languages
Japanese (ja)
Inventor
Shoji Kimura
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP6738076A priority Critical patent/JPS52150199A/en
Publication of JPS52150199A publication Critical patent/JPS52150199A/en
Pending legal-status Critical Current

Links

Landscapes

  • Elevator Door Apparatuses (AREA)

Abstract

PURPOSE: When a lock fails to act even if it is applied with a voltage, a lock per se lets the impressed voltage to cause flicker action and impresses the voltage till the lock is actuated in order to prevent exothermy of the lock.
COPYRIGHT: (C)1977,JPO&Japio
JP6738076A 1976-06-08 1976-06-08 Lock for fire-proofing door Pending JPS52150199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6738076A JPS52150199A (en) 1976-06-08 1976-06-08 Lock for fire-proofing door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6738076A JPS52150199A (en) 1976-06-08 1976-06-08 Lock for fire-proofing door

Publications (1)

Publication Number Publication Date
JPS52150199A true JPS52150199A (en) 1977-12-13

Family

ID=13343339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6738076A Pending JPS52150199A (en) 1976-06-08 1976-06-08 Lock for fire-proofing door

Country Status (1)

Country Link
JP (1) JPS52150199A (en)

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