Title:
SOIL SAMPLER, AND GROUND INVESTIGATION DEVICE
Document Type and Number:
Japanese Patent JP2016216992
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a soil sampler and a ground investigation device suited to a small-scale investigation at a residential district, etc.SOLUTION: A soil sampler includes a soil sampling side cylinder 53C, a piston 60 capable of moving relatively and freely forward and backward in an inner space of the soil sampling side cylinder 53C, and an airtight mechanism that keeps a gap between the soil sampling side cylinder 53C and the piston 60 airtight. The airtight mechanism includes a storage space PX formed on a piston body 61, and an energizing member 62 disposed in the storage space PX. The energizing member 62 is free to switch between a pressing state in which an outer surface of the piston body 61 is pressed against an inner surface of the soil sampling side cylinder 53C through a wall of the storage space PX, and a withdrawn state withdrawn from the pressing state.SELECTED DRAWING: Figure 5
Inventors:
AKASHI HIROTSUGU
OISHI MASAYUKI
OISHI MASAYUKI
Application Number:
JP2015102319A
Publication Date:
December 22, 2016
Filing Date:
May 20, 2015
Export Citation:
Assignee:
MEIRINKAIHATSU CO LTD
International Classes:
E02D1/04; G01N1/08
Domestic Patent References:
| JPS4940642Y1 | 1974-11-08 | |||
| JPH0972184A | 1997-03-18 | |||
| JP2005009253A | 2005-01-13 | |||
| JP2005036570A | 2005-02-10 | |||
| JP2001342620A | 2001-12-14 |
Attorney, Agent or Firm:
Natsuki Kameyama