Title:
ANTI-SEPARATION STRUCTURE FOR ANCHORING MEMBER
Document Type and Number:
WIPO Patent Application WO/2018/008482
Kind Code:
A1
Abstract:
[Problem] The present invention addresses the problem of providing an anti-separation structure for an anchoring member that has a good workability and an inexpensive configuration and that can prevent the relative separation of a bolt and a nut. [Solution] An anti-separation means to prevent a nut member from separating from a bolt member has a groove portion formed on one end of the bolt member and an enlarged outer diameter portion comprising a piece separated by the groove portion. The nut member is configured so that the enlarged outer diameter portion can pass through the inner circumferential face of the nut member by the nut member being moving in the direction to approach the piece having the enlarged outer diameter portion when the nut member is pressed from the one end toward the other end of the bolt member. The state in which the bolt member and the nut member are screwed together is released at a stage in which the nut member reaches a prescribed position with respect to the bolt member when the nut member is turned in the direction to be loosened relative to the bolt member in a state in which the nut member is disposed between the enlarged outer diameter portion and the other end of the bolt member.
Inventors:
FUJII MAKOTO (JP)
Application Number:
PCT/JP2017/023652
Publication Date:
January 11, 2018
Filing Date:
June 27, 2017
Export Citation:
Assignee:
CAR MATE MFG (JP)
International Classes:
F16B41/00; F16B35/00
Foreign References:
| JPT01522972Y1 | ||||
| JPS49131460U | 1974-11-12 | |||
| JPH0526222A | 1993-02-02 | |||
| JPH0747887A | 1995-02-21 |
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