JPS53142750A - Method of detecting landing of hung load of crane, etc. - Google Patents
Method of detecting landing of hung load of crane, etc.Info
- Publication number
- JPS53142750A JPS53142750A JP5688877A JP5688877A JPS53142750A JP S53142750 A JPS53142750 A JP S53142750A JP 5688877 A JP5688877 A JP 5688877A JP 5688877 A JP5688877 A JP 5688877A JP S53142750 A JPS53142750 A JP S53142750A
- Authority
- JP
- Japan
- Prior art keywords
- crane
- detecting
- detecting landing
- hung load
- landing
- 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
- Control And Safety Of Cranes (AREA)
Abstract
PURPOSE: To improve safety and to economize the cost of construction, by detecting the input power of a motor by means of a power transducer, and by detecting landing by comparing the detected value and standard voltage beforehand set by a comparison judging device, to stop the motor.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5688877A JPS53142750A (en) | 1977-05-16 | 1977-05-16 | Method of detecting landing of hung load of crane, etc. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5688877A JPS53142750A (en) | 1977-05-16 | 1977-05-16 | Method of detecting landing of hung load of crane, etc. |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53142750A true JPS53142750A (en) | 1978-12-12 |
Family
ID=13039957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5688877A Pending JPS53142750A (en) | 1977-05-16 | 1977-05-16 | Method of detecting landing of hung load of crane, etc. |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53142750A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS567889A (en) * | 1979-06-26 | 1981-01-27 | Shinko Electric Co Ltd | Landing detector for grab backet |
JPS624189A (en) * | 1985-06-27 | 1987-01-10 | 日立建機株式会社 | Flexible structure working machine |
JPH0275491U (en) * | 1988-11-30 | 1990-06-08 | ||
JPH0382391U (en) * | 1989-12-11 | 1991-08-22 |
-
1977
- 1977-05-16 JP JP5688877A patent/JPS53142750A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS567889A (en) * | 1979-06-26 | 1981-01-27 | Shinko Electric Co Ltd | Landing detector for grab backet |
JPS5738515B2 (en) * | 1979-06-26 | 1982-08-16 | ||
JPS624189A (en) * | 1985-06-27 | 1987-01-10 | 日立建機株式会社 | Flexible structure working machine |
JPH0275491U (en) * | 1988-11-30 | 1990-06-08 | ||
JPH0382391U (en) * | 1989-12-11 | 1991-08-22 |
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