JPS5297550A - Circuit for confirming attraction of hoisting electromagnet - Google Patents
Circuit for confirming attraction of hoisting electromagnetInfo
- Publication number
- JPS5297550A JPS5297550A JP1415776A JP1415776A JPS5297550A JP S5297550 A JPS5297550 A JP S5297550A JP 1415776 A JP1415776 A JP 1415776A JP 1415776 A JP1415776 A JP 1415776A JP S5297550 A JPS5297550 A JP S5297550A
- Authority
- JP
- Japan
- Prior art keywords
- attraction
- confirming
- circuit
- electromagnet
- hoisting electromagnet
- 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
- Load-Engaging Elements For Cranes (AREA)
Abstract
PURPOSE: To enable confirming complete attraction of article by a hoisting electromagnet by utilizing the fact that timing variation of exciting current of hoisting electromagnet depends upon the attracting state of article and actuation of attraction of the electromagnet.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1415776A JPS5297550A (en) | 1976-02-12 | 1976-02-12 | Circuit for confirming attraction of hoisting electromagnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1415776A JPS5297550A (en) | 1976-02-12 | 1976-02-12 | Circuit for confirming attraction of hoisting electromagnet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5297550A true JPS5297550A (en) | 1977-08-16 |
Family
ID=11853307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1415776A Pending JPS5297550A (en) | 1976-02-12 | 1976-02-12 | Circuit for confirming attraction of hoisting electromagnet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5297550A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5487573U (en) * | 1977-12-02 | 1979-06-21 | ||
JPH0812245A (en) * | 1994-06-30 | 1996-01-16 | Futaba Corp | Falling off alarm device for electromagnetic magnet device |
WO2021157336A1 (en) * | 2020-02-03 | 2021-08-12 | コベルコ建機株式会社 | Notification system |
-
1976
- 1976-02-12 JP JP1415776A patent/JPS5297550A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5487573U (en) * | 1977-12-02 | 1979-06-21 | ||
JPH0812245A (en) * | 1994-06-30 | 1996-01-16 | Futaba Corp | Falling off alarm device for electromagnetic magnet device |
WO2021157336A1 (en) * | 2020-02-03 | 2021-08-12 | コベルコ建機株式会社 | Notification system |
JP2021123434A (en) * | 2020-02-03 | 2021-08-30 | コベルコ建機株式会社 | Notification system |
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