Title:
CORE SAMPLING DEVICE
Document Type and Number:
Japanese Patent JP2015206233
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a core sampling device which can cool a bit, and which can achieve reduction in costs required for a boring device and boring work and miniaturization of the boring device.SOLUTION: A core sampling device includes: an outer pipe which has a bit at a lower end; an inner pipe which is arranged coaxially with the axis of the outer pipe, within the outer pipe; a fluid container which is arranged in the inner pipe, which has a storage space for accommodating a fluid, and which can be contracted in the axial direction of the inner pipe; and a fluid passage that is a fluid passage communicating with the bit. The storage space of the fluid container communicates with the fluid passage.
Inventors:
KOMIYA KUNIMORI
SUEYOSHI YASUAKI
TAKEDA SHINJI
SUEYOSHI YASUAKI
TAKEDA SHINJI
Application Number:
JP2014088249A
Publication Date:
November 19, 2015
Filing Date:
April 22, 2014
Export Citation:
Assignee:
HIGHTECH KK
International Classes:
E21B25/00; E02D1/04
Domestic Patent References:
| JP2001098539A | 2001-04-10 | |||
| JP2002510372A | 2002-04-02 | |||
| JPH08312887A | 1996-11-26 | |||
| JP2005240308A | 2005-09-08 | |||
| JPH03244788A | 1991-10-31 | |||
| JP2000257366A | 2000-09-19 |
Attorney, Agent or Firm:
Nobumichi Miyata
Hiroaki Kakita
Hiroaki Kakita