JPS52118752A - Stalling prevention means for crane lifting and lowering means - Google Patents

Stalling prevention means for crane lifting and lowering means

Info

Publication number
JPS52118752A
JPS52118752A JP3500176A JP3500176A JPS52118752A JP S52118752 A JPS52118752 A JP S52118752A JP 3500176 A JP3500176 A JP 3500176A JP 3500176 A JP3500176 A JP 3500176A JP S52118752 A JPS52118752 A JP S52118752A
Authority
JP
Japan
Prior art keywords
crane lifting
stalling
lowering
crane
stalling prevention
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
JP3500176A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5413065B2 (cs
Inventor
Katsuyuki Yoshizawa
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3500176A priority Critical patent/JPS52118752A/ja
Publication of JPS52118752A publication Critical patent/JPS52118752A/ja
Publication of JPS5413065B2 publication Critical patent/JPS5413065B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control And Safety Of Cranes (AREA)
JP3500176A 1976-03-29 1976-03-29 Stalling prevention means for crane lifting and lowering means Granted JPS52118752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3500176A JPS52118752A (en) 1976-03-29 1976-03-29 Stalling prevention means for crane lifting and lowering means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3500176A JPS52118752A (en) 1976-03-29 1976-03-29 Stalling prevention means for crane lifting and lowering means

Publications (2)

Publication Number Publication Date
JPS52118752A true JPS52118752A (en) 1977-10-05
JPS5413065B2 JPS5413065B2 (cs) 1979-05-28

Family

ID=12429865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3500176A Granted JPS52118752A (en) 1976-03-29 1976-03-29 Stalling prevention means for crane lifting and lowering means

Country Status (1)

Country Link
JP (1) JPS52118752A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440420A1 (de) * 1994-11-07 1996-05-09 Mannesmann Ag Verfahren und Einrichtung zum Überwachen und/oder Steuern der Drehzahl eines Elektroantriebs mit Frequenzumrichter für Hubwerke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440420A1 (de) * 1994-11-07 1996-05-09 Mannesmann Ag Verfahren und Einrichtung zum Überwachen und/oder Steuern der Drehzahl eines Elektroantriebs mit Frequenzumrichter für Hubwerke
US5818185A (en) * 1994-11-07 1998-10-06 Mannesmann Aktiengesellschaft Process and device for monitoring and controlling the speed of rotation of an electric drive with frequency converter for hoisting gears
DE4440420C3 (de) * 1994-11-07 2003-07-24 Demag Cranes & Components Gmbh Verfahren und Einrichtung zum Überwachen und/oder Steuern der Drehzahl eines Elektroantriebs mit Frequenzumrichter für Hubwerke

Also Published As

Publication number Publication date
JPS5413065B2 (cs) 1979-05-28

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