Rigging assembly for an excavating bucket

Details Rigging assembly for an excavating bucket Rigging assembly for an excavating bucket

E - Fixed Constructions

02

F

E02F 3/58 (2006.01) E02F 3/48 (2006.01) E02F 3/54 (2006.01)

Patent

CA 2170821

A rigging assembly for a dragline bucket has first and second hoist sockets, first and second hoist chains coupled to a bucket and first and second pickup links above the hoist chains. The chains extend along first and second axes, respectively, and define a fleet angel therebetween. The rigging assembly includes first and second links, and each of the first and second links and first and second pickup links has an upper end and a lower end, horizontally-spaced upper pins being coupled to the upper ends of the first and second links, respectively, thereby permitting the first and second links to pivot with respect to a respective one of the horizontally-spaced upper pins. The lower ends of the first and second links are coupled by respective link pins to respective upper ends of the pickup links, and the pickup links are free to pivot with respect to a respective one of the link pins and define a link angle therebetween which is substantially equal to the fleet angle. The upper pins are coupled to the first and second hoist sockets, respectively, and the upper pins, the link pins and the chain pins have substantially equal cross-sectional areas.

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