Patent ID: 7537127

Claim:
A towing arrangement for a train coupler, comprising: a plate ( 11 ); a bar ( 8 ), including an axially projecting pin ( 10 ) at a rear end of the bar that projects through a through-hole ( 40 ) in the plate ( 11 ); shock-absorbing spring members ( 12 ) supported on the pin ( 10 ) on each side of the plate ( 11 ), the shock-absorbing members ( 12 ) operative to hold the pin in a starting position in relation to the plate, and the pin ( 10 ) connected to the bar is axially movable in said through-hole ( 40 ) against an operative action of the shock-absorbing members ( 12 ); and a mandrel ( 16 ), including the plate ( 11 ) and a cylinder ( 18 ), the cylinder extending rearward from the plate and having a cone ( 19 ) at a free, rear end opposite the plate, wherein, the mandrel ( 11 , 18 , 19 ) is inserted into a deformation tube ( 17 ) that comprises a wide front tube section ( 22 ) that transforms, via a waist ( 23 ), into a thin rear tube section ( 21 ) that is deformable by a penetration of the mandrel axially into the deformation tube ( 17 ) in a buff direction, and the mandrel ( 11 , 18 , 19 ) is configured to be positively arrested in a draft direction by a clamp ring ( 32 ), the clamp ring ( 32 ) being in threaded engagement with the forward end of the deformation tube ( 17 ), the clamp ring ( 32 ) supporting a shoulder ( 36 ) in the forward end of the mandrel ( 11 , 18 , 19 ) in the draft direction.