JPS5442759A - Jib crane - Google Patents

Jib crane

Info

Publication number
JPS5442759A
JPS5442759A JP10865677A JP10865677A JPS5442759A JP S5442759 A JPS5442759 A JP S5442759A JP 10865677 A JP10865677 A JP 10865677A JP 10865677 A JP10865677 A JP 10865677A JP S5442759 A JPS5442759 A JP S5442759A
Authority
JP
Japan
Prior art keywords
drum
hoisting
motor
brake
jib crane
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
JP10865677A
Other languages
Japanese (ja)
Inventor
Katsuki Sekiya
Shigeru Kitajima
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP10865677A priority Critical patent/JPS5442759A/en
Publication of JPS5442759A publication Critical patent/JPS5442759A/en
Pending legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)

Abstract

PURPOSE: To enable level luffing motion of a jib crane by connecting the turning shaft of hoisting drum and the driving shaft of boom derricking motor by the intermediary of a differential gear train.
CONSTITUTION: Drive unit of this jib crane includes a hoisting motor 30, boom dirricking motor 31, gear unit 32, etc. in addition to hoisting drum 25 and boom derricking drum 26. In the state that a third brake 33 of hoisting motor 30 is actuated to hold its driving shaft tempirarily in place, a second brake 69 is actuated while keeping a first brake 73 in its inoperative condition, whereby the hoisting drum driving system and the derricking drum driving system are coupled together by the drum interconnecting system
COPYRIGHT: (C)1979,JPO&Japio
JP10865677A 1977-09-09 1977-09-09 Jib crane Pending JPS5442759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10865677A JPS5442759A (en) 1977-09-09 1977-09-09 Jib crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10865677A JPS5442759A (en) 1977-09-09 1977-09-09 Jib crane

Publications (1)

Publication Number Publication Date
JPS5442759A true JPS5442759A (en) 1979-04-04

Family

ID=14490327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10865677A Pending JPS5442759A (en) 1977-09-09 1977-09-09 Jib crane

Country Status (1)

Country Link
JP (1) JPS5442759A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007099522A (en) * 2006-12-27 2007-04-19 Kitagawa Iron Works Co Ltd Wiring method for derricking jib crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007099522A (en) * 2006-12-27 2007-04-19 Kitagawa Iron Works Co Ltd Wiring method for derricking jib crane

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