This invention relates to drives for rotary tillers and the like and, more particularly, to clutch mechanisms for such power sources.
It is conventional and well known in the manufacture of rotary tillers, or the like, to utilize a belt drive to transmit movement from a drive sheave to a driven sheave, the latter being connected to a rotary tine assembly. Generally, the drive connection between the driving and driven sheaves is selectively controlled by permitting the belt to assume a slack condition relative to the sheaves in which condition no motion is transmitted between the sheaves or, alternatively, to tension the belt on the sheaves to transmit motion.
This invention is concerned with those types of belt-tensioning clutch arrangements and has among its general objects to provide an improved, simplified, and yet effective mechanism for selectively tensioning the belt drive.