Title:
OPEN/CLOSE TOOL FOR MANHOLE LID
Document Type and Number:
Japanese Patent JP2023028293
Kind Code:
A
Abstract:
To provide an open/close tool for a manhole lid improved in usability and safety.SOLUTION: A pair of two open/close tools 10 of a manhole lid placed for a manhole lid M opposite to each other include: frames 20 having wheels 25; lift levers 40 having an operation part 45 at one end part and a suspension part 44 suspending the manhole lid M at the other end part: and rollers 47 configured to be a rotation center of the lift lever 40. The frame 20 comprises a rail part 29 on which the rollers 47 slidably fit and a regulation part 34 which regulates displacement in a horizontal direction of the suspension part 44, to lift up the manhole lid M through displacement of the suspension part 44 in a vertical direction as the roller 47 slides in the rail part 29 in association with rotation of the lift lever 40.SELECTED DRAWING: Figure 7
Inventors:
IKEURA YOSHIATSU
TATEMATSU DAIKI
TAKAI AKIYOSHI
SUGIMOTO TOSHIFUMI
KUMAZAWA MASAHIRO
TATEMATSU DAIKI
TAKAI AKIYOSHI
SUGIMOTO TOSHIFUMI
KUMAZAWA MASAHIRO
Application Number:
JP2021133909A
Publication Date:
March 03, 2023
Filing Date:
August 19, 2021
Export Citation:
Assignee:
UNIV MIE
FUJI MFG CO LTD
CHUBU ELECTRIC POWER
FUJI MFG CO LTD
CHUBU ELECTRIC POWER
International Classes:
E02D29/14
Attorney, Agent or Firm:
Patent Attorney Corporation Akatsuki Joint Patent Office