Coupling rod of a variable length

摘要

Coupling rod of a variable length which is arranged between a coupling head, in particular for rail vehicles, and the vehicle or its frame etc. or a coupling housing attached thereto and is designed to absorb excessively large impacts, the change in length taking place by means of a double-acting, at least single-stage, telescopic cylinder (12, 13, 14) which is actuated hydraulically or pneumatically and whose cylinder (14) which is connected to the coupling head is connected via an anti-rotation element (24, 25) to the cylinder (12) which is arranged on the vehicle etc., which anti-rotational element (24, 25) consists for example of a profile rod (24) which is attached to the vehicle-side cylinder (12) and is mounted so as to be displaceable, but not rotatable, in the floor (19) of the front cylinder (14) in a correspondingly shaped opening (25). <IMAGE>