JPS51116560A - Control apparatus for crane of contractible type - Google Patents

Control apparatus for crane of contractible type

Info

Publication number
JPS51116560A
JPS51116560A JP3918975A JP3918975A JPS51116560A JP S51116560 A JPS51116560 A JP S51116560A JP 3918975 A JP3918975 A JP 3918975A JP 3918975 A JP3918975 A JP 3918975A JP S51116560 A JPS51116560 A JP S51116560A
Authority
JP
Japan
Prior art keywords
crane
control apparatus
type
bucket
contractible type
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
JP3918975A
Other languages
Japanese (ja)
Other versions
JPS5436374B2 (en
Inventor
Ritsu Araki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3918975A priority Critical patent/JPS51116560A/en
Publication of JPS51116560A publication Critical patent/JPS51116560A/en
Publication of JPS5436374B2 publication Critical patent/JPS5436374B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)

Abstract

PURPOSE: To improve the working operations of a crane of contactible type, in which a contacting mechanism is driven by an electric motor to move a bucket in a horizontal position, by maintaining the moving speed of the buckt at a constant level, when in the contrating condition, and by moving the bucket at a high speed when in the extending condition.
COPYRIGHT: (C)1976,JPO&Japio
JP3918975A 1975-04-02 1975-04-02 Control apparatus for crane of contractible type Granted JPS51116560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3918975A JPS51116560A (en) 1975-04-02 1975-04-02 Control apparatus for crane of contractible type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3918975A JPS51116560A (en) 1975-04-02 1975-04-02 Control apparatus for crane of contractible type

Publications (2)

Publication Number Publication Date
JPS51116560A true JPS51116560A (en) 1976-10-14
JPS5436374B2 JPS5436374B2 (en) 1979-11-08

Family

ID=12546149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3918975A Granted JPS51116560A (en) 1975-04-02 1975-04-02 Control apparatus for crane of contractible type

Country Status (1)

Country Link
JP (1) JPS51116560A (en)

Also Published As

Publication number Publication date
JPS5436374B2 (en) 1979-11-08

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