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US 5,518,128 AGranted
Crane, particularly railway crane
AssigneeMannesmann Aktiengesellschaft
InventorsJoachim Kroll, Walter Kollner
Life of this patent
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Abstract
A crane, particularly a railway crane, with a superstructure which is arranged on an undercarriage so as to be swivelable around a vertical axis, a jib and at least one counterweight which is movable as a function of the swiveling movement of the superstructure. The counterweight being arranged on the superstructure. The at least one counterweight is connected with the superstructure via an articulation which has a swivel axis aligned parallel to the vertical axis of the superstructure.
Claims6
A railroad crane, comprising:
- an undercarriage adapted to travel on rails;
- a superstructure having a longitudinal axis and arranged on the undercarriage so as to be swivelable around a vertical axis;
- a jib;
- at least one counterweight pivotably mounted to the superstructure so as to be pivotable responsive to swiveling movement of the superstructure, the at least one counterweight being mounted to the superstructure by an articulation which has a swivel axis aligned parallel to the vertical axis, the counterweight being. arranged so that the swivel axis thereof always intersects the longitudinal axis of the superstructure and is at a distance from the vertical axis of the superstructure toward a rear side of the superstructure remote of a free end of the jib;
- and
- swivel drive means arranged between the superstructure and the counterweight for driving the counterweight opposite to the swiveling direction of the superstructure.
3 more elements
Dependencies are inferred from the claim text.