US 12,078,246 B2
Pivot shaft tensioner assembly
Sangkyu Kim, Milton (CA); and Michael Koppeser, Windsor (CA)
Assigned to Gates Corporation, Denver, CO (US)
Filed by GATES CORPORATION, Denver, CO (US)
Filed on Jun. 6, 2022, as Appl. No. 17/832,808.
Claims priority of provisional application 63/197,910, filed on Jun. 7, 2021.
Prior Publication US 2022/0389990 A1, Dec. 8, 2022
Int. Cl. F16H 7/12 (2006.01); F16H 7/08 (2006.01)
CPC F16H 7/1281 (2013.01) [F16H 2007/0802 (2013.01); F16H 2007/0806 (2013.01); F16H 2007/081 (2013.01); F16H 7/0829 (2013.01); F16H 2007/0865 (2013.01); F16H 2007/0893 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A belt tensioner for a belt drive, comprising
a tensioner base and a tensioning arm axially aligned about a pivot shaft defining a pivot axis, the tensioning arm pivotal in relation to the tensioner base about the pivot axis, a compression spring positioned around the pivot shaft and extending axially for providing an axial spring force, wherein the compression spring has a spring rate of 50 N/mm to 500 N/mm, the compression spring having a first end proximal to an axially moveable hub bearing positioned around the pivot shaft, and a washer in the hub bearing between the first end of the compression spring and the hub bearing.