Motion reversal device for mechanisms for compact cassettes, moving spool arrangements and the like

Claim 1

A motion reversal device for mechanisms for compact cassettes, moving spool arrangements and the like, comprising a frame; two alternatively tape drive and winding hub members rotatably supported on the said frame, first gear means supported on said frame and adapted to drive one of said hub members, second gear means supported on said frame and adapted to drive the other of said hub members, said first and said second gear means being arranged at a distance from each other to leave a free space therebetween, the device being characterized in that it further comprises, a rockable train of gears including a supporting structure for rotatably supporting the gears of said train of gears, said supporting structure being pivotally supported on said frame to allow the rocking motion of said train, said train of gears having on one of it ends an output gear arranged at least partially within said free space between said first and said second gear means, the rocking movement of said rockable pivotally supported structure allowing said output gear to alternatively mesh with said first and said second gear means, said train of gears having on its opposite end an input gear, reversible electric motor supported on said frame and having driving gear means constantly in mesh with said input gear of said train of gears in all positions of said rocking train gears, and driving gear means of said reversible motor urging said rocking train of gears selectively in mesh with said first and said second gear means depending on the direction of rotation of said reversible electric motor.