Title:
ROD, METHOD OF MANUFACTURING A PAIR OF HALVES, AND METHOD OF ACCOMMODATING ROCK CORE
Document Type and Number:
Japanese Patent JP2021179089
Kind Code:
A
Abstract:
To provide a rod equipped with a core tube for accommodating a rock core, from which the rock core accommodated in the core tube can be easily removed.SOLUTION: A rod 1 of the present invention has a reusable core tube for containing a rock core inside. Core tubes K1 and K2 are formed into a cylindrical shape by butting together a pair of halves 13A and 13B, respectively. A cylindrical body 8, which forms a front end of the core tube K1, is screwed into the inside of a cylindrical body 16, which is provided on a rear side of a bit sleeve 3. A cylindrical body 10, which forms a rear end of the core tube K1, is screwed into the inside of a cylindrical body 30 provided on a front side of a core tube connection adapter 7. The cylindrical body 8, which forms a front end of the core tube K2, is screwed into the inside of a cylindrical body 32, which is provided on a rear side of the core tube connection adapter 7. The cylindrical body 10, which forms a rear end of the core tube K2, is screwed into the inside of a cylindrical body 20 provided on a front side of a shank sleeve 4.SELECTED DRAWING: Figure 3
More Like This:
| JPS6344144 | SAMPLING WITH REMOVAL OF SEDIMENT |
Inventors:
KUNITAKE SEIJI
OKUNO TATSUNORI
KAWAKAMI KIYOKAZU
TSUCHIDA JUNYA
OKUNO TATSUNORI
KAWAKAMI KIYOKAZU
TSUCHIDA JUNYA
Application Number:
JP2020083422A
Publication Date:
November 18, 2021
Filing Date:
May 11, 2020
Export Citation:
Assignee:
TOHO KINZOKU KK
PENTA OCEAN CONSTRUCTION CO LTD
PENTA OCEAN CONSTRUCTION CO LTD
International Classes:
E21B25/00; G01N1/04; G01N1/08
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office