Patent ID: 6789770
Filing Date: 2004-09-14
Classification: B61L

Abstract:
A device for locking end positions of movable switch parts and, in particular, a movable point (1) of a frog, comprising two relatively axially displaceable parts capable of being displaced into a position coupled with each other in a positive manner in at least one direction of movement, whereinthe relatively axially displaceable parts are comprised of a tube (5) and a rod (6) guided within the tube (5), and are at least partially arranged in a stationary outer tube (4), whereby locking members (8) cooperate with the relatively axially displaceable parts (5, 6) and with the stationary outer tube (4), and said locking members (8) are capable of being displaced in the radial direction into a locking position in a recess or inner annular groove (15, 16) of the stationary outer tube (4), and wherein the stationary outer tube (4) is comprised of two tube parts, wherein the first of said two tube parts is an axially displaceable inner tube part (17) capable of being axially displaced within the second tube part which is an axially displaceable outer tube part (18), and each of said two axially displaceable tube parts (17,18) has at least one recess or inner annular groove (15, 16).