Patent ID: 8496424

Claim:
An arrangement for fixing a work piece ( 14 ) to an end of a boom ( 1 ) in a working machine and comprising: a boom ( 1 ) having an articulation pin ( 5 ) defining a first rotation axis about which the work piece ( 14 ) is swivellable; actuation means ( 2 , 3 , 4 ) for swiveling the work piece ( 14 ) about the first rotation axis defined by said articulation pin ( 5 ) on the boom ( 1 ); said actuation means comprising a coupling pin ( 6 ) defining a further point for fixing and swiveling the work piece ( 14 ) about said articulation point ( 5 ) on the boom ( 1 ); a device ( 13 ) for tilting the work piece ( 14 ) about a second axis ( 15 ) lying substantially perpendicular to the first rotation axis defined by said articulation pin ( 5 ) and lying substantially parallel to a plane through pins ( 12 ) on said tilting device ( 13 ) for fixing the work piece ( 14 ) to said tilting device ( 13 ); said tilting device ( 13 ) further comprising a movable body to which the work piece ( 14 ) is attachable either directly or by a distance piece ( 10 , 11 ), such that the distance piece ( 10 , 11 ) adjusts position of the work piece ( 14 ) with respect to a third axis ( 21 ) substantially perpendicular to both said first ( 5 ) and second ( 15 ) axes, the movable body of the tilting device ( 13 ) being limitedly tiltable about said second axis ( 15 ) relative to the boom ( 1 ); an auxiliary body ( 9 ) mounted between said articulation pin ( 5 ) and coupling pin ( 6 ) and upon said articulation pin ( 5 ) at a counter-articulating point ( 17 ), with said tilting device ( 13 ) being fixed at both ends by a non-rotating part thereof to said auxiliary body ( 9 ) and fixing points at ends of said tilting device ( 13 ) defining said second axis ( 15 ); and said counter articulation point ( 17 ) coupled to said articulation pin ( 5 ) of the boom ( 1 ) being located at a side of said second axis ( 15 ) lying closer to the work piece ( 14 ), to reduce distance (a) between said articulation pin ( 5 ) and the work piece ( 14 ).