The invention relates to a coupler securing means (1) for a rail vehicle (3) having a coupling bar (2) fastened to the rail vehicle in an articulated manner and an additional coupling bar (4) connected to the first coupling bar (2) in an articulated manner, said additional coupling bar being detachably connectable at its free end (5) to a pivotable locking member (9) mounted on the rail vehicle (3). To make handling of a coupler securing means of this type much more user-friendly than before, the pivotable locking member is a spring-loaded lock (9) with a lateral slot (8) for receiving a bolt (7) connected to the free end (5) of the additional coupling bar (4), wherein a shoulder (14) of the spring-loaded lock (9) runs against one side (15) of a stop (16). A Bowden cable (17) acts on the spring-loaded lock (9), under the effect of which Bowden cable the spring-loaded lock (9) releases the bolt (7) when the side (15) of the stop (14) is released.