The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2018
Filed:
Mar. 12, 2015
Nifco Inc., Yokosuka-shi, Kanagawa, JP;
Mikio Nezu, Yokosuka, JP;
NIFCO INC., Yokosuka-Shi, Kanagawa, JP;
Abstract
A tubular-member lock mechanism includes a cylindrical housing to which a tubular member having an engagement portion at one end is mounted, and a lock member for engaging or releasing the housing and the tubular member. The housing includes a lock-member guide wall turnably guiding the lock member, at least two sliding surfaces with different inclinations wherein a tip portion of the lock member slides by turning the lock member, and a slit through which one portion of the lock member passes to engage the engagement portion of the tubular member mounted to the housing. The lock member, at a standby/lock position, engages the engagement portion formed on an outer periphery of the tubular member, and the lock member, at a release position where a rotational load is applied, spreads by the sliding surfaces having the different inclinations releases the engagement portion of the tubular member.