Title:
ボックスカルバートの製造方法
Document Type and Number:
Japanese Patent JP7082400
Kind Code:
B2
Abstract:
To provide a junction coupler or the like allowing a straight PC steel bar to be installed in an appropriate position.SOLUTION: A junction coupler C is provided with: a first PC steel bar SS1 on which a first male thread is arranged at its end part; and a first insertion hole positioned between the first PC steel bar and a second PC steel bar S2 on which a second male thread is arranged at its end part, having a first female thread mating with the first male thread; and a second insertion hole on which a second female thread is arranged to mate with the second male thread, allowing connection of the first PC steel bar S1 and the second steel bar S2, while an angle (minor angle) formed by an axial center line of the first insertion hole and the second axial center line of the second insertion hole is set at a value smaller than 180°.SELECTED DRAWING: Figure 1
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Inventors:
Kentaro Kano
Ken Matsui
Ken Matsui
Application Number:
JP2018071385A
Publication Date:
June 08, 2022
Filing Date:
April 03, 2018
Export Citation:
Assignee:
Asahi Concrete Works Co., Ltd.
International Classes:
E02D29/05; B28B23/04; E02D29/07; E02D29/09; E03F3/04
Domestic Patent References:
| JP8298717A | ||||
| JP2006022569A | ||||
| JP2008431A | ||||
| JP9004386A | ||||
| JP2006037504A | ||||
| JP2009097305A | ||||
| JP437272B1 | ||||
| JP6185205A |
Foreign References:
| US4953280 |
Attorney, Agent or Firm:
Kazuhiro Akazawa
Takeshi Miyazawa
Takeshi Miyazawa