PERFECCIONAMIENTOS INTRODUCIDOS EN SISTEMA DE ACCIONAMIENTO DE BOMBILLOS DE CERRADURA,POR CREMALLERA Y PINON

摘要

A rack and pinion activated lock cylinder unit includes a plurality of discs 1 which have pinion teeth 2 for engagement by rack teeth 25 on a corresponding key 14. The discs 1 are pivotally mounted on radial plates 4 which extend radially of the lock cylinder. Each of the discs 1 has a circular peripheral portion 23 which projects beyond the radial plate 4 into a corresponding groove 28 in the lock housing 35, to prevent the cylinder turning. Insertion of the appropriate key turns the discs to a position such that flats 3 on the discs face outwardly and turning of the cylinder is permitted.