Title:
SCREW POINT
Document Type and Number:
Japanese Patent JP2005023644
Kind Code:
A
Abstract:
To provide a screw point capable of providing an investigation result of expressing true properties of the ground, in the screw point used for a Sweden system sounding test.
This screw point 12 is formed by arranging a spiral projecting part 16 on at least a tip part outer peripheral surface of a columnar main part 14. The spiral projecting part is desirably a round shape having no corner on a tip surface. The tip 18 of the columnar main part is desirably a conical shape.
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Inventors:
NARITA YOSHIFUMI
MAE TOSHIMORI
MARUYAMA KOJI
MAE TOSHIMORI
MARUYAMA KOJI
Application Number:
JP2003190099A
Publication Date:
January 27, 2005
Filing Date:
July 02, 2003
Export Citation:
Assignee:
ALIVE KK
SOMETHING KK
SOMETHING KK
International Classes:
E02D1/02; G01N3/40; (IPC1-7): E02D1/02; G01N3/40
Attorney, Agent or Firm:
Yoshimi Hatanaka
Kaoru Osawa
Kaoru Osawa