DEVICE FOR LOCKING THE END POSITIONS OF MOVABLE SWITCH PARTS

摘要

In a device for locking the end positions of movable switch parts and, in particular, movable cross frogs, in which two relatively axially displaceable parts are capable of being displaced into a position coupled with each other in a positive or positive and force-transmitting manner in at least one direction of movement, the relatively displaceable parts are comprised of a tube (2) and a rod (3) guided within the tube (2) and are at least partially arranged in a stationary outer tube (1). The locking members cooperate with the relatively axially displaceable parts (2, 3) and the outer tube (1) and are capable of being displaced in the radial direction into a locking position in a recess or inner annular groove (5) of the outer tube (1). The locking members are formed by rings or ring segments (6) whose substantially square or rectangular cross sections are chamfered on their two inwardly located sides while forming surfaces (9) converging obliquely relative to the axis.