Title:
NUT FALLING PREVENTION TOOL
Document Type and Number:
Japanese Patent JP2019203516
Kind Code:
A
Abstract:
To provide a nut falling prevention tool capable of preventing a nut from falling by co-rotating with the nut, even in a case where the friction force with the nut becomes large.SOLUTION: A nut falling prevention tool 1 is composed of an elastic wire. A ring part 4 that grips the outer peripheral surface of a bolt 2 is formed at the center part of the wire. A pair of operation parts 5 and 6 for expanding the diameter of the ring part 4 are formed at both ends of the wire. The ring part 4 is attached to the tip part of the bolt 2. One end part of the wire regulates the movement of a nut 3. One end part of the wire receives frictional force from the nut 3 that rotates in a loosening direction. One end part of the wire is displaced to reduce the diameter of the ring part 4.SELECTED DRAWING: Figure 1
Inventors:
SHIMOYAMA SHIZUYA
YAMAGUCHI YOJI
YAMAGUCHI YOJI
Application Number:
JP2018096884A
Publication Date:
November 28, 2019
Filing Date:
May 21, 2018
Export Citation:
Assignee:
DAIHEN FUSE CORP
International Classes:
F16B39/20; F16B41/00
Attorney, Agent or Firm:
Shuzo Hinode
Takayasu Kobane
Kiyotaka Fujiwara
Takayasu Kobane
Kiyotaka Fujiwara