Title:
CONFIRMATION PLATE FOR FASTENING FLANGE CONNECTION BOLT, AND JOINT METHOD OF UPPER AND LOWER POLE
Document Type and Number:
Japanese Patent JP2023100423
Kind Code:
A
Abstract:
To make a bolt/nut fastening work efficient simply by placing a confirmation plate 10 on an upper surface of a joint flange 3B positioned at a lower end of an upper pole 1B when two poles 1A and 1B are connected by a joint flange.SOLUTION: A confirmation plate 10 is formed by dividing a plate base 11 made of a doughnut-shaped thin plate into two and connecting them with a joint 21. The confirmation plate 10 is provided with bolt openings 20 corresponding to bolt holes 8 on an upper surface 5B of a joint flange 1B, and "numbers" indicating the bolt tightening order 1 to 12 are displayed near the bolt openings 20 on an upper surface 13. The bolt openings 20 are formed sufficiently large in a plan view compared to a connection structure such as bolts, nuts and washers to be applied, and is formed in a position, a shape and a size so as not to be sandwiched by the connection structure.SELECTED DRAWING: Figure 2
Inventors:
KAWASHIMA HISANORI
Application Number:
JP2022001103A
Publication Date:
July 19, 2023
Filing Date:
January 06, 2022
Export Citation:
Assignee:
MITANI SEKISAN KK
International Classes:
E04H12/00; E04H12/08; E04H12/12; H02G7/00
Attorney, Agent or Firm:
Kenichi Wakui
Norihiro Yamamoto
Kazunaga Suzuki
Takahiro Kudo
Naoto Mitsui
Norihiro Yamamoto
Kazunaga Suzuki
Takahiro Kudo
Naoto Mitsui
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