Title:
コンクリート型枠保持部材用ボルト及びコンクリート型枠保持部材
Document Type and Number:
Japanese Patent JP6664925
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a bolt for a concrete mold holding member and the concrete mold holding member for managing screw-in torque generated at a time of screwing and suppressing a damage to the concrete mold holding member, especially to the bolt for the concrete mold holding member.SOLUTION: A bolt for a concrete mold holding member includes a fitting bolt 2 having an end in an axial direction screwed into an H-section steel 8, and a torque adjustment part 3 provided on the other end of the fitting bolt 2 and extending in the axial direction. The torque adjustment part 3 includes: a connection part 31 having an end connected to the fitting bolt 2; a fracture part 32 continued from the other end of the connection part 31 and having torque at a time of torsional fracture smaller compared to the fitting bolt 2 and the connection part 31; and a tool fitting part 33 connected to the connection part 31 through the fracture part 32, to have a tool fitted thereon. The tool fitting part 33 and the fracture part 32 have a through-hole into which a connection shaft member 4 may be inserted in the axial direction, and a shaft fitting part is provided on the other end of the connection part 31 for fitting the connection shaft member 4.SELECTED DRAWING: Figure 2
Inventors:
Makoto Ikuno
Application Number:
JP2015209098A
Publication Date:
March 13, 2020
Filing Date:
October 23, 2015
Export Citation:
Assignee:
Npat Co., Ltd.
International Classes:
E04G17/06
Domestic Patent References:
| JP3053360U | ||||
| JP3130906U | ||||
| JP2012122219A | ||||
| JP61194055U |
Foreign References:
| US20050120657 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Masataka Otani