Title:
TRIAL DIGGING MEMBER AND TRIAL DIGGING DEVICE INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2017155546
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve work efficiency without damaging an underground buried object in a trial digging work.SOLUTION: A trial digging device 2 comprises a hydraulic backhoe 6, and a trial digging attachment 7 attached to a tip of an arm 6c of the backhoe. The trial digging attachment 7 comprises means for excavating a rock mass in a non-contact manner by spraying high-pressure water from its tip face, agitating and air-sucking excavated sediment, and transporting it from a trial digging site. An agitation member for agitating the excavated sediment is rotatably arranged in a cylinder body 7a of the attachment 7, and the hydraulic pressure of the backhoe 6 as a drive force of a hydraulic motor for the rotation of the agitation member is used. Furthermore, a flexible member 7j is arranged at a tip part of the steel-made cylinder body 7a constituting the trial digging attachment 7 so as to protrude from the tip part.SELECTED DRAWING: Figure 6
Inventors:
NAITO HIROKO
MARUYAMA NORIO
KUBOTA MARIKO
MURANAKA HIROAKI
FURUNAGA TATSUHIRO
IMAIZUMI KAZUTOSHI
IDO KAZUTOMO
MARUYAMA NORIO
KUBOTA MARIKO
MURANAKA HIROAKI
FURUNAGA TATSUHIRO
IMAIZUMI KAZUTOSHI
IDO KAZUTOMO
Application Number:
JP2016042092A
Publication Date:
September 07, 2017
Filing Date:
March 04, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
OKUMURA CORP
OKUMURA CORP
International Classes:
E02F3/92; E02F3/36; E02F3/96; E02F7/02; E02F9/24; E02F9/26
Domestic Patent References:
| JP2002121988A | 2002-04-26 | |||
| JPS59206519A | 1984-11-22 | |||
| JP2002276274A | 2002-09-25 | |||
| JPH0393991A | 1991-04-18 | |||
| JP2009244391A | 2009-10-22 | |||
| JPH02210123A | 1990-08-21 | |||
| JP2000087389A | 2000-03-28 | |||
| JP2002371586A | 2002-12-26 |
Foreign References:
| US20130189060A1 | 2013-07-25 | |||
| KR101367099B1 | 2014-02-26 |
Attorney, Agent or Firm:
Toshiro Ohata