Patent ID: 7004712

Claim:
An assembly for exchangeably fastening an implement to an excavator boom comprising: retaining bolts ( 4 , 5 ) spaced apart (A) in parallel disposed on the implement: first and second grippers ( 6 , 7 ) disposed on a mounting bar ( 23 ) on the excavator boom for gripping the retaining bolts ( 4 , 5 ); the grippers ( 6 , 7 ) providing open insertion openings ( 8 , 9 ) for the retaining bolts ( 4 , 5 ) in directions facing away from each other, and are adjustable relative to each other using a hydraulically or pneumatically operated drive ( 11 ); a longitudinal axis ( 10 ) of the hydraulic or pneumatic drive ( 11 ), a center axis ( 12 , 13 ) of the retaining bolts ( 4 , 5 ), and a center axis ( 14 , 15 ) of the insertion openings ( 8 , 9 ) on the grippers ( 6 , 7 ) are arranged, at least approximately, in one plane ( 16 ); the first gripper ( 7 ) being fixedly and non-displaceably disposed on the mounting bar ( 23 ) of the excavator boom, and a cylinder ( 20 ) of the hydraulic or pneumatic drive ( 11 ) being connected with the mounting bar ( 23 ) and thus with the first gripper ( 7 ); and the second gripper ( 6 ) linked with a piston ( 21 ) of the hydraulic or pneumatic drive ( 11 ) for adjustable positioning, the second gripper ( 6 ) operates within a guide ( 17 ) formed by plates ( 18 , 19 ) located on both sides of the guide, the plates are arranged parallel to each other, and parallel to a direction of the axis of the drive ( 11 ); and cut-outs ( 26 ) shaped as circular arcs are formed on the ends of the plates ( 18 , 19 ) opposite the insertion openings ( 9 ) as a support for the other retaining bolt ( 4 ).