Title:
WHIRL-STOP MECHANISM OF ROTARY FASTENING TOOL, FIRST AND SECOND WASHERS USED FOR IT, AND MECHANISM RELEASING METHOD
Document Type and Number:
Japanese Patent JP3433726
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily stop whirl without requiring a skill, reuse a bolt and nut even after disassembling (release of the whirl stop), and prevent easy disassembling by an illegal third party.
SOLUTION: This whirl-stop mechanism is applied to a plurality of adjacent rotary fastening tools, and comprises a first washer 16 that engages with shaft parts of the plurality of fastening tools and is provided not to rotate in relation to a fastened member 14 and second washers 18 and 20 provided, not to rotate in relation to the plurality of fastening tools. The first washer 16 is joined to the second washers 18 and 20, thereby stopping the whirl of the plurality of fastening tools in relation to the fastened member 14.
Inventors:
Sato Yoshi
Application Number:
JP2000134488A
Publication Date:
August 04, 2003
Filing Date:
May 08, 2000
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
F16B39/10; F16B39/24; F16B41/00; (IPC1-7): F16B39/10; F16B39/24; F16B41/00
Domestic Patent References:
| JP49140567U | ||||
| JP57196814U |
Attorney, Agent or Firm:
Yuji Iizuka