Patent ID: 7424997

Claim:
A device ( 1 ) for compensating the weight of a suspended load comprising a counterweight or spring tensioner including at least one spring ( 2 ) opposing a force, a rope pull ( 4 ) or supporting wire to be reeled off a barrel ( 3 ), with the barrel ( 3 ) being supported for rotation on a shaft ( 6 ), which the spring ( 2 ) directly engages with its internal end or via a sheath connected to the shaft ( 6 ), while an external end of the spring ( 2 ) engages the barrel ( 3 ), and a shaft drive ( 7 ) for changing a supporting force acts via the shaft ( 6 ) to the spring ( 2 ) and the spring ( 2 ) with the shaft drive ( 7 ) and a drive wheel ( 8 ) arranged on the shaft ( 6 ) allocated to the shaft drive being connected via a freewheel, which when the spring ( 2 ) is relaxed prior to its loosening or disengagement of the internal end is activated in a manner of a freewheel, the freewheel includes catching latch arrangement ( 9 ) which, in a blocking direction has at least three latches ( 10 ) that simultaneously engage recesses ( 11 ) which receive the latches in the blocking direction, the recesses ( 11 ) are arranged at an inside of a circular drive wheel ( 12 ) allocated to the drive wheel ( 8 ) and an internal body ( 13 ) of the catching latch arrangement ( 9 ) is arranged inside the circular drive wheel ( 12 ), pivotally supporting the latches ( 10 ), simultaneously being a part of a slide bearing for the circular drive wheel ( 12 ) that is rotational in a freewheel direction.