Wireless controllable car with a winch mechanism

Claim 1

A wireless-controllable toy car with a winch mechanism, comprising driving wheels and a winch mechanism, an electric motor for driving and controlling the wheels, another electric motor for operating the winch mechanism, a single two-position changeover switch for switching a power circuit for the electric motors thereby selectively to actuate one or the other of the electric motors, the electric motor for controlling the operation of the winch mechanism having an output shaft, reduction gearing connecting said output shaft to a winch drum of said winch mechanism, idling means between said output shaft and said reduction gearing for preventing overload of the winch mechanism electric motor upon stopping of the winch drum at the end of a winding cycle of the winch mechanism, said idling means comprising a gear idly mounted on said output shaft between two fixed rings, and resilient means acting against one of said fixed rings and pressing said gear against the other of said fixed rings, the reduction gearing including a winch drum shaft on which said winch drum is supported, a reduction gear fixedly secured to said winch drum shaft, said drum having a face adjacent said reduction gear, meshing elements on said reduction gear and said face that engage with each other in the direction of rotation of the winch drum to drive the winch drum in rotation, the winch drum shaft being mounted for slidable movement axially within the winch drum, and means for sliding the shaft axially to disengage said meshing elements from each other thereby to disengage the reduction gear from the winch drum to permit free withdrawal of a filament wound on the winch drum, and means resiliently urging the winch drum shaft in a direction to engage said meshing elements.