MECANISME D'ARRET DESTINE A ARRETER UN ROULEAU ASSOCIE APRES UNNOMBRE DE TOURS PREDETERMINE

摘要

A continuous towel dispenser comprises dispensing apparatus including a measuring roll for feeding a loop of towel from a clean towel supply in a housing to a use position outside of the housing and thence along a return path back into the housing, take-up means in the housing for retracting soiled towel from the return path, and a roll stop assembly including a disc-like cam having a spiral cam surface and a transverse groove thereon and being rotatable with the measuring roll, a cam follower engageable with and movable by the spiral cam surface transversely thereof from a variable starting position to a stopping position in the transverse groove, and a stop surface rotatable with the cam and engageable with a stop dog on the cam follower when the cam follower is in its stopping position for thereby halting rotation of the measuring roll, the cam follower being returnable along the transverse groove to the starting position, at which point the stop dog engages an adjustable retainer which defines the variable starting positions; the roll stop assembly is of relatively flat compact construction to minimize the size of the dispenser. There is also provided novel towel breaker structure and cam means for moving in into operative position along closing of the housing.