AUTOMATICALLY OPERATED SHOVEL AND STONE CRUSHING SYSTEM COMPRISING THE SAME

Title:

AUTOMATICALLY OPERATED SHOVEL AND STONE CRUSHING SYSTEM COMPRISING THE SAME

Document Type and Number:

WIPO Patent Application WO/1999/047759

Kind Code:

A1

Abstract:

An automatically operated shovel comprising a hydraulic shovel and an automatic operation controller (50) provided to the hydraulic shovel and adapted for allowing the hydraulic shovel to perform one cycle of taught reproduction operations from excavation to soil dumping, characterized in that the automatic operation controller has positioning judging means (511) for judging whether or not the hydraulic shovel has arrived in a predetermined taught position range with positioning accuracy preset for each taught position of the hydraulic shovel, and outputs the next taught position as a target position when the hydraulic shovel is judged to have arrived in the predetermined taught position range.

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Inventors:

KURENUMA TORU (JP)
HASHIMOTO AKIRA (JP)
SUGAWARA KAZUHIRO (JP)
NAGANO YOSHIYUKI (JP)
ISHIBASHI HIDETO (JP)

Application Number:

PCT/JP1999/001363

Publication Date:

September 23, 1999

Filing Date:

March 18, 1999

Export Citation:

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Assignee:

HITACHI CONSTRUCTION MACHINERY (JP)
KURENUMA TORU (JP)
HASHIMOTO AKIRA (JP)
SUGAWARA KAZUHIRO (JP)
NAGANO YOSHIYUKI (JP)
ISHIBASHI HIDETO (JP)

International Classes:

E02F3/43; E02F9/20; E02F9/26; (IPC1-7): E02F9/20; B02C21/02; B02C25/00

Foreign References:

JPH02101229A	1990-04-13
JPH0966244A	1997-03-11
JPH09195321A	1997-07-29
JPS5781203U	1982-05-19
JPH10212740A	1998-08-11
JPS5751338A	1982-03-26
JPH0988355A	1997-03-31
JPH04126914A	1992-04-27

Other References: