Title:
INNER EXCAVATION EARTH MOVING DEVICE
Document Type and Number:
Japanese Patent JP2794166
Kind Code:
B2
Abstract:
PURPOSE: To move earth reserved in a hopper without leaving it behind by expanding an opening section of the lower end of a wall surface member for surrounding the circumference of an excavation screw in comparison with the upper part thereof to form.
CONSTITUTION: The whole form of a hopper 2 is so constructed that it has a vertical section formed in the shape of a trapezoid with gradually expanded base at a certain slope extending from a ceiling board 13 to an opening section 14. As a result, coefficient of friction between an interior wall in the hopper 2 and earth to be moved is reduced in comparison with the interior wall straight in the vertical direction, and earth to be moved is smoothly moved. By the constitution, earth to be moved can be prevented from remaining unmoved in the hopper.
Inventors:
ADACHI MASARU
Application Number:
JP5329895A
Publication Date:
September 03, 1998
Filing Date:
February 16, 1995
Export Citation:
Assignee:
DAIWA KIKO KK
TOKYO HANBAI KK
TOKYO HANBAI KK
International Classes:
E02D7/28; E02D13/00; (IPC1-7): E02D7/28; E02D13/00
Domestic Patent References:
| JP329388Y2 |
Attorney, Agent or Firm:
Kei Tanabe
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