Patent ID: 9551402
Date: 2017-01-24
CPC Classifications: F02B,F16H,Y10T

Claim:
1. A belt tensioning device that is adapted for use with a belt drive that includes a driving machine having a driveshaft, a driving belt pulley supported on the driveshaft and having an outer circumferential surface that defines a diameter, a plurality of further belt pulleys, and an infinite belt extending about the outer circumferential surface of the driving belt pulley and the plurality of further belt pulleys, the belt tensioning device comprising: a housing, two tensioning arms pivotably supported on the housing about a pivot axis and supporting respective rollers adapted to engage the infinite belt of the belt drive, and a spring exerting pressure on the two tensioning arms; wherein the pivot axis of the two tensioning arms is adapted to be located within the outer circumferential surface of the driving belt pulley of the belt drive used with the belt tensioning device; and each of the housing and the two tensioning arms has an aperture defining a diameter that is larger than the diameter defined by the outer circumferential surface of the driving belt pulley of the belt drive used with the belt tensioning device.