Hand operated mechanical auger - has release lever associated with brake to disengage drive when auger strikes object

摘要

The drive is mounted on a frame via a pair of handlebars (17, 17') and comprises a motor (4) and transmission (14), and between these is a centrifugal coupling (1). A disengaging lever (2) and associated brake (3) work together in order to disengage the auger whenever an obstacle in the ground is encountered. The release lever has an inertia so calculated that when the limit of angular acceleration is exceeded by reason of the auger (18) striking an object, the holding power of the lever (2) is overridden and the brake is released. ADVANTAGE - A safety device to protect the operator as well as the auger.