Title:
BOLT DAMAGE DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2015129733
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a bolt damage detection device capable of easily detecting damage of a bolt with a simple configuration without removing the bolt.SOLUTION: The bolt damage detection device includes: a bolt 2 that passes through a bolt hole 13 formed in a first member 11, and has one end 2a that projects from the bolt hole 13 in one direction and is fixed to a second member 12 disposed in the one direction of the first member 11 and the other end 2b projecting from the bolt hole 13 in the other direction, which is the opposite side to the one direction; an energizing member 3 for energizing the other end 2b of the bolt 2 in the other direction; a contact member 4 disposed separately from the other end 2b of the bolt 2 in the other direction; and contact detecting means 5 for detecting contact of the other end 2b of the bolt 2 with the contact member 4.
Inventors:
SAKIMA KIMIHISA
HAYASHI RYUICHI
BODAI MASARU
HAYASHI RYUICHI
BODAI MASARU
Application Number:
JP2014002292A
Publication Date:
July 16, 2015
Filing Date:
January 09, 2014
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
G01M13/00
Domestic Patent References:
| JPH02280042A | 1990-11-16 | |||
| JPS50147065U | 1975-12-05 | |||
| JP2002365202A | 2002-12-18 | |||
| JPH09145659A | 1997-06-06 | |||
| JPH09292315A | 1997-11-11 | |||
| JP2004271398A | 2004-09-30 |
Foreign References:
| US4640131A | 1987-02-03 |
Attorney, Agent or Firm:
Ryuichiro Mori
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma