Title:
ROD FOR DYNAMIC PENETRATION TEST
Document Type and Number:
Japanese Patent JP2005350873
Kind Code:
A
Abstract:
To provide a rod which is brought into continuous contact with a cone moving up and down while following the vertical motion of the rod, without being corotated even if the rod is rotated for the measurement of torque.
A lower cone 3, which is attached to a leading end 1a of the rod 1 for the dynamic penetration test, is brought into continuous contact with the rod 1 via an upper cone 2 which follows the vertical motion of the rod 1 and which is made free from rotation around the axial center 1d of the rod 1. Preferably, a taper 2b is formed on the upper side of the cone 3.
Inventors:
SHIBATA YOSHIHIKO
Application Number:
JP2004169866A
Publication Date:
December 22, 2005
Filing Date:
June 08, 2004
Export Citation:
Assignee:
WILL CONSULTANT KK
International Classes:
E02D1/02; G01N3/40; (IPC1-7): E02D1/02; G01N3/40
Attorney, Agent or Firm:
Yasuhiko Takeishi
Noriko Murata
Shuji Tokuoka
Hiromitsu Shigemoto
Naoko Oozumi
Noriko Murata
Shuji Tokuoka
Hiromitsu Shigemoto
Naoko Oozumi
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