Title:
SCREW JOINT, STEEL PIPE WITH SCREW JOINT, STRUCTURE, METHOD FOR BUILDING STRUCTURE, LANDSLIDE PREVENTION PILE, METHOD FOR CONSTRUCTING LANDSLIDE PREVENTION PILE, METHOD FOR DESIGNING SCREW JOINT, METHOD FOR PRODUCING SCREW JOINT, AND METHOD FOR PRODUCING STEEL PIPE WITH SCREW JOINT
Document Type and Number:
WIPO Patent Application WO/2022/050133
Kind Code:
A1
Abstract:
A screw joint 1 according to the present invention is located at ends of steel pipes 3 and joins the steel pipes 3 to each other. The screw joint 1 comprises a male-side cylindrical body 7 having a male screw 5 comprising a taper screw, and a female-side cylindrical body 11 having a female screw 9 comprising a taper screw. The inclination angle of stabbing flanks 5a, 9a of screw threads of the male screw 5 and the female screw 9 with respect to a direction at right angles to a steel pipe axis is within a range from 0 degree to +8 degrees.
Inventors:
OHBA YUTO (JP)
Application Number:
PCT/JP2021/031009
Publication Date:
March 10, 2022
Filing Date:
August 24, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
E02D5/24; E02D17/20; F16L15/06
Foreign References:
| JP2020523502A | 2020-08-06 | |||
| JP2017504767A | 2017-02-09 | |||
| JPH11172687A | 1999-06-29 | |||
| JPH11107272A | 1999-04-20 | |||
| JPH07102555A | 1995-04-18 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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