Lock cylinder

A lock cylinder, comprising

• a cylinder housing formed with bores and with rotation angle limit abutment means,
• a row of housing tumbler pins disposed in said bores of the housing,
• a rotatable cylinder core is rotatably disposed in said cylinder housing,
• said cylinder core defining a key channel, said abutment means for limiting the rotation of said cylinder core in said housing defining fixed abutment positions, said cylinder housing defines a key insertion-side face and a rear face therebehind in an axial direction of said cylinder core, said cylinder core projects beyond said rear face of said cylinder housing forming a rearwardly projecting end of said cylinder core,
• tumbler core pins disposed in said cylinder core and which operatively are coordinated to said housing tumbler pins,
• only one abutment core pin is disposed in said rearwardly projecting end of said cylinder core and controllable by one of a plurality of keys, respectively, inserted in the key channel, said keys are formed with different depth notches, respectively, cooperating with said abutment core pin,
• said core pin constituting means for providing various rotation angle limit abutments for the cylinder core,
• a housing-sided slot means forming a single slot for receiving said core pin therein, said slot means has a base surface and is open in the direction of the core, said base surface of said slot means comprises a plurality of partial sections which are arranged at different radial distances relative to said cylinder core, each of said
• partial sections respectively being off-set and connected via steps with respect to each other and each of said steps cooperates with said core pin selectively depending on said one key formed with one of said different depth notches, respectively.