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1. (WO2018009331) ROTARY TENSIONER

Pub. No.:    WO/2018/009331    International Application No.:    PCT/US2017/038080
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Tue Jun 20 01:59:59 CEST 2017
IPC: F16H 7/08
F02B 67/06
Applicants: GATES CORPORATION
Inventors: LEUCHT, Volker
MARTINEZ, Arnaud
DILTHEY, Jochen
Title: ROTARY TENSIONER
Abstract:
A tensioner comprising a base having a base aperture, the base aperture disposed to receive a driven component, a rotary arm pivotally engaged with the base, an axis of rotation of the rotary arm aligned with a base aperture center, a first pulley journalled to the rotary arm, a swing arm pivotally engaged with the rotary arm about a shaft, the shaft and swing arm each having cooperating frustoconical portions, a torsion spring biasing the pivot arm, a second pulley journalled to the swing arm, a bushing having a frustoconical portion in frictional engagement with the swing arm frustoconical portion, the bushing in fixed relation to the shaft or pivot arm, and a first damping ring frictionally engaged between the rotary arm and the base, a Belleville spring in pressing engagement whereby a normal force is applied to the first damping ring.