Title:
EARTH REMOVAL TREATMENT DEVICE FOR PILE INSTALLATION BY INNER EXCAVATION
Document Type and Number:
Japanese Patent JP3696511
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an earth removal treatment device for pipe installation by inner excavation facilitating the detaching work of an earth removal treatment hopper.
SOLUTION: Guide members 14 having vertical guide grooves 13 are respectively fixed to right and left of the side of an earth removal outlet 10 of a hollow pile press-in device 7, an engaging pin 16 hooking an engaging hook 15 of the earth removal treatment hopper 11, a nonslip pin 17 inserted in a pin hole 15a formed in the engaging hook 15 and a cylinder 19 capable of inserting the nonslip pin 17 are provided to each of the guide members 14, a rolling motion prevention pin 18 of the earth removal treatment hopper 11 is projected downward of each of the guide members 14, a guide groove 15b engaged with the engaging pin 16 is so formed that the lower part thereof is widened and tapered and, at the same time, a bracket 22 forming a pin hole 22a engaged with the rolling motion prevention pin 18 is fixed to the earth removal hopper 11.
Inventors:
Hishiyama Tamotsu
Wakabayashi Yasuo
Wakabayashi Yasuo
Application Number:
JP2001019719A
Publication Date:
September 21, 2005
Filing Date:
January 29, 2001
Export Citation:
Assignee:
Tenox Co., Ltd.
Nippon Vehicle Manufacturing Co., Ltd.
Nippon Vehicle Manufacturing Co., Ltd.
International Classes:
E21B7/20; E02D7/00; (IPC1-7): E02D7/00; E21B7/20
Domestic Patent References:
| JP2001348871A |
Attorney, Agent or Firm:
Kazuhiko Kido
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