Title:
EARTH AUGER AND ITS COLLECTING METHOD
Document Type and Number:
Japanese Patent JP2929469
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent an earth auger from deformation even if it is hung up by one-point hanging when the auger after completion of boring work is to be collected back.
SOLUTION: An earth auger 10 includes a shaft split in a plurality of segments 11, 11 and a universal joint 12 which joins together the shaft segments flexibly. Each shaft segment 11 is fitted with a screw 13. After completion of boring, the auger 10 is hung by one-point hanging to be collected back. When the auger 10 is lowered in the laid state, it bends in the part of universal joint 12 before the auger 10 is deformed in a bent condition by its own weight. That is, the one-point hanging does not cause the auger into a bent condition, and the auger 10 can be collected easily and quickly and transported and stored easily in the folded state compactly.
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Inventors:
KITAMURA MORIO
Application Number:
JP20614296A
Publication Date:
August 03, 1999
Filing Date:
August 05, 1996
Export Citation:
Assignee:
GIKEN SEISAKUSHO KK
International Classes:
E21B3/00; E21B7/00; (IPC1-7): E21B7/00
Domestic Patent References:
JP1174796A | ||||
JP4126993U |
Attorney, Agent or Firm:
Hiroshi Arafune