APPARATUS FOR PREVENTING CIRCUMFERENTIAL SEPARATION BETWEEN A DRIVING GEAR AND A DRIVEN GEAR

摘要

An apparatus for preventing circumferential separation of the meshing teeth (86, 72) of a driving gear means (84) rotatable about a first axis in a first direction (26) and a driven gear means (70, 76) which is driven by the driving gear means (84) to rotate about a second axis in a second direction (28) opposite to the first direction (26), said apparatus comprising: means for applying a first circumferential torque to the driving gear means (84) urging the driving gear means (84) in the first direction (26): and means for applying a second circumferential torque to the driven gear means (70 ,78) urging the driven gear means (70, 76) in a direction opposite to the second direction (28): the magnitude of said circumferential torque being equal to the magnitude of said first circumferential torque.