Patent ID: 6270041
Filing Date: 2001-08-07
Classification: B61L

Abstract:
An apparatus for mechanically locking the end positions of first and second movable point sections, with first and second adjusting rods, with the first adjusting rod connected with the first point section and the second adjusting rod connected with the second point section, and the first and second adjusting rods coupled mechanically with one another, comprising:a) at least one locking tappet for locking the adjusting rods in each case in one end position thereof, andb) a force limiting device, which cancels the locking, when a force, exerted by the point sections on the adjusting rods, exceeds a certain value, the force limiting device including:i) at least one coupling device which yields when stressed and is connected for movement with the adjusting rods, andii) a transfer mechanism which converts movement of one of the first and second adjusting rods into a movement for unlocking the at least one locking tappet.