LOOSENESS PREVENTION NUT AND REPAIR METHOD OF INSTALLATION STRUCTURE

Title:

LOOSENESS PREVENTION NUT AND REPAIR METHOD OF INSTALLATION STRUCTURE

Document Type and Number:

Japanese Patent JP2020070810

Kind Code:

A

Abstract:

To provide a looseness prevention nut which enables fastening work to be performed easily and securely regardless of an extra length of a bolt.SOLUTION: A looseness prevention nut 1 includes: a hollow cylindrical body 10 in which a female screw part is formed on an inner peripheral surface; and a spiral coil spring 20 in which the base end side is fixed to the inner peripheral surface of the body 10 and the tip side protrudes from the body 10. The looseness prevention nut 1 is configured so that a bolt, which is inserted from the spiral tip side of the coil spring 20, is threadedly engaged with both of the coil spring 20 and the female screw part.SELECTED DRAWING: Figure 1

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Inventors:

TAKAHASHI EI
SATO KOICHIRO
ISHIKAWA RYO

Application Number:

JP2018202679A

Publication Date:

May 07, 2020

Filing Date:

October 29, 2018

Export Citation:

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Assignee:

SANKO IND CO LTD
SHUTOKO MAINTENANCE KANAGAWA CO LTD

International Classes:

F16B39/22; E04B1/04; E04B1/61

Attorney, Agent or Firm:

Patent business corporation Arole International

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