Patent ID: 7243605

Claim:
An auto-laundry conveyor dolly of the type intended to roll on a slotted track comprising: an axle member, a center link mounted on the axle member for connecting the dolly into a conveyor chain; a pair of tire engaging rollers mounted on the axle member in reversely similar relation to and on opposite sides of the center link to fit into the slot of the slotted track when in operation and to engage and push on the tire of an automobile being driven along the auto-laundry conveyor; a pair of track engaging rollers mounted on the axle member in reversely similar relationship to the center link and on opposite outboard sides of the tire engaging rollers, the track engaging rollers being coaxial with and of a smaller diameter than the tire engaging rollers and resting on and rolling relative to the track when in operation; and a pair of tire stabilizing rollers mounted on the axle member in reversely similar relation to the center link and on opposite outboard sides of the track engaging rollers, the tire stabilizing rollers being effectively of the same diameter as the tire engaging rollers at a tangent point of tire contact so as to prevent a tire from engaging a track engaging roller during operation of the dolly.