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:
Aug. 17, 2010
Filed:
Dec. 16, 2004
Tadahisa Tanaka, Iwata, JP;
Tadahisa Tanaka, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
In a tension adjusting device for an engine accessory driving belt by tightening a boltthreaded into an engine block, a fulcrum shaftis fixed. A tension pulleyis rotatably supported by a pulley armpivotally supported about the fulcrum shaft. A regulating force of a hydraulic auto-tensioner is applied to the pulley armto press the tension pulley against the belt B. A washeris disposed between a bossformed on the pulley armand the headof the bolt. The washerhas an outer cylindrical portioncovering one end of the boss. A slingeris mounted on the end of the bossto define a labyrinthbetween the slingerand the cylindrical portion, thereby preventing entry of muddy water and dust into the bearing portion pivotally supporting the pulley arm