JPS54140347A - Electric system stringing method for boom of crane - Google Patents

Electric system stringing method for boom of crane

Info

Publication number
JPS54140347A
JPS54140347A JP4740778A JP4740778A JPS54140347A JP S54140347 A JPS54140347 A JP S54140347A JP 4740778 A JP4740778 A JP 4740778A JP 4740778 A JP4740778 A JP 4740778A JP S54140347 A JPS54140347 A JP S54140347A
Authority
JP
Japan
Prior art keywords
boom
crane
electric system
cables
ruggedness
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
JP4740778A
Other languages
Japanese (ja)
Inventor
Hideo Haneda
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.)
Aisin Corp
Original Assignee
Aisin Seiki Co 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP4740778A priority Critical patent/JPS54140347A/en
Publication of JPS54140347A publication Critical patent/JPS54140347A/en
Pending legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)

Abstract

PURPOSE: To string electric system cables without damaging them, in a device that adjusts the ruggedness and expansion and contraction of a boom of a crane by electric system signals by controlling an oil pressure system.
CONSTITUTION: A crane is provided with a boom 10 supported by means of a boom supporting portion material 12, to which a gear 11 for turning is fastened, and a turning shaft 13 supported to a body 14, which is fixed to a car rear body (Illustration is omitted), in a revolution-free shape is tightly attached to a center portion of said gear 11. The boom 10 is turned by the drive of a motor 15, expanded and contracted by means of a boom 19 for expansion and contraction and undulated by means of a boom 20 for ruggedness. These booms are drive controlled by means of an oil pressure circuit containing magnet valves 22, 23. In this case, the damage of cables 27W29 for electric signals connected to the magnet valves 22, 23 can be prevented because the cables 27W29 are pierced into a pipe 30 mounted into the shaft 13.
COPYRIGHT: (C)1979,JPO&Japio
JP4740778A 1978-04-20 1978-04-20 Electric system stringing method for boom of crane Pending JPS54140347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4740778A JPS54140347A (en) 1978-04-20 1978-04-20 Electric system stringing method for boom of crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4740778A JPS54140347A (en) 1978-04-20 1978-04-20 Electric system stringing method for boom of crane

Publications (1)

Publication Number Publication Date
JPS54140347A true JPS54140347A (en) 1979-10-31

Family

ID=12774258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4740778A Pending JPS54140347A (en) 1978-04-20 1978-04-20 Electric system stringing method for boom of crane

Country Status (1)

Country Link
JP (1) JPS54140347A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826805U (en) * 1971-08-03 1973-03-31
JPS5222186A (en) * 1975-08-13 1977-02-19 Toshiba Mach Co Ltd Automatic device of trimming machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826805U (en) * 1971-08-03 1973-03-31
JPS5222186A (en) * 1975-08-13 1977-02-19 Toshiba Mach Co Ltd Automatic device of trimming machine

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