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:
Apr. 18, 2000
Filed:
Feb. 18, 1998
Kazuhiko Shimaya, Saitama-ken, JP;
Tadasu Suzuki, Tokyo-to, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
A chain tension relieving device which prevents excessive tension being applied to a tension run of a chain. A shoe (5C) engages a tension run (3B) of a chain (3) stretched between a driving sprocket (1) and a driven sprocket (2) from another side of the chain in a bowed portion of the chain (3). When the tension acting on the tension run (3B) is of a prescribed value or less, the shoe surface of the shoe (5C) is held to a given advanced position so as to bow the tension run of the chain (3) by a biasing force of mechanical tensioner (15D). When the tension exceeds the prescribed value, the tension side (3B) of the chain (3) is straightened against the biasing force of the mechanical tensioner and the shoe surface of the shoe (5C) retreats from the given advanced position.