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:
Nov. 23, 2021
Filed:
Dec. 07, 2018
Tok, Inc., Tokyo, JP;
Junichiro Akiba, Tokyo, JP;
Shin Kimura, Tokyo, JP;
TOK, Inc., Tokyo, JP;
Abstract
Rod fixing device with the same force irrespective of whether movement of a rod is up or down. A locking mechanism moves with a first rod inside a second rod and a stopper having a contacting surface portion contacting an inner circumferential surface of the second rod. A holder which rotatably holds the stopper so that the contacting surface portion contacts the inner circumferential surface of the second rod, and a spring imparts the stopper with a forces generating a fixing frictional force between the first rod and the second rod by causing the contacting surface portion to come into contact with the inner circumferential surface of the second rod. Movement of the first rod toward one side causes the contacting surface portion to rotate toward a side separating from the inner circumferential surface of the second rod, and movement of the first rod toward the other side is a movement against the fixing frictional force.