JPS52150199A - Lock for fire-proofing door - Google Patents
Lock for fire-proofing doorInfo
- 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
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
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) |
-
1976
- 1976-06-08 JP JP6738076A patent/JPS52150199A/en active Pending
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