Abstract: A clamping system for releasably clamping a golf trolley, to a power drive unit comprises a clamping unit adapted in use to be permanently secured to the golf trolley and comprising a clamping plate and a mounting plate, the latter having an outer face, and an inner, clamping face. An element of the golf trolley is located between the clamping face of the mounting plate and an opposed face of the clamping plate and is then clamped therebetween by tightening of manually operable stud. A first formation is provided on the outer face of the mounting plate; a second formation is provided on a top plate of a yoke of said power drive unit, with the first and second formations providing for screwless, sliding interengagement therebetween, and a locking or latching pin is manually displaceable between operative and release positions.

Abstract: A power drive unit (1) for attachment to a golf trolley comprises a drum (2) rotatable about a generally horizontal axis (3) with the external periphery (4) of the drum (2) adapted to seat on the ground and to make frictional contact with the ground for drive purposes, a battery (16) within the drum (2), an electric motor (19) powerable from the battery (16), a transmission from the drive motor (19) to the drum (2), manually operable control means for controlling forward rotation of the drum (2), an end cap (5) at each end of the drum (2), and a final output gear (25) mechanically connected to one end cap (5) via a vibration isolating connection (26, 28, 29).