Title:
FASTENING TOOL AND LIGHT FITTING
Document Type and Number:
Japanese Patent JP2019167993
Kind Code:
A
Abstract:
To provide a fastening tool which is advantageous for inhibiting falling of a component.SOLUTION: A fastening tool 10 includes: a bolt 12 having a first screw part 12a having a first effective diameter d1 and a second screw part 12b provided closer to the tip side than the first screw part 12a and having a second effective diameter d2 smaller than the first effective diameter d1; a first nut 14 having a first screw hole 14a having the first effective diameter d1; and a second nut 16 having a second screw hole 16a having the second effective diameter d2. The second screw part 12b has a cutout part 12d in an axial intermediate position. An axial length L4 of the cutout part 12d is longer than a height H3 of the second nut 16, and a diameter d3 of the cutout part 12d is smaller than the second effective diameter d2.SELECTED DRAWING: Figure 1
Inventors:
KITAGAWA HISAO
Application Number:
JP2018054408A
Publication Date:
October 03, 2019
Filing Date:
March 22, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F16B41/00; F16B5/12; F16B35/00; F21S8/02; F21S8/06; F21V17/12
Attorney, Agent or Firm:
Masakazu Ito
Takayoshi Matsumoto
Satoshi Hosokawa
Mori Taishi
Takayoshi Matsumoto
Satoshi Hosokawa
Mori Taishi