Abstract: A drive mechanism for a rotating body having a rotatable shaft includes a clutch to selectively transmit torque input to the shaft, a brake to slow down rotation of the shaft upon disengagement of the clutch, and an actuator to engage and disengage the clutch and brake. The clutch and brake are each mounted on a mounting member which is movable with respect to the shaft in the axial direction thereof. The actuator includes an actuator member that is slidably mounted on the mounting member and an actuator to move the actuator member from a first position, in which the clutch is engaged and the brake is disengaged, and a second position, in which the clutch is disengaged and the brake is engaged.

Abstract: A drive mechanism is provided for a rotating body. The body includes a rotatable shaft, and the drive mechanism includes a clutch to selectively transmit torque input to the shaft, a brake to slow down rotation of the shaft upon disengagement of the clutch, and an actuator means to engage and disengage the clutch and brake. The clutch and brake are each mounted on a mounting member which is movable with respect to the shaft in the axial direction thereof. The actuator means includes an actuator member that is slidably mounted on the mounting member and an actuator to move the actuator member from a first position, in which the clutch is engaged and the brake is disengaged, and a second position, in which the clutch is disengaged and the brake is engaged.