Self-balancing crane

Details Self-balancing crane Self-balancing crane

1983-08-16

1986-02-04

Blix, Trygve M.

Traversing hoists

Having counterweight or counterbalancing means

Counterweight movable relative to load support

212182, 212197, 212231, 212227, B66C 2376, B66C 2304

Patent

active

045679908

ABSTRACT:
A pivoted arm counterbalance system for a self balancing crane provides a counterbalancing moment exactly equal to the overturning moment of the crane by the utilization of a dynamic balancing system in which a drive cable having a tension related to the tension of the support cable runs over and is secured to a constant radius sector secured to the counterbalance arm. The pivot point of the sector corresponds to the pivot point of the counterbalancing arm such that the constant radius sector provides a constant lever arm regardless of the counterbalance arm angle.

REFERENCES:
patent: 970773 (1910-09-01), Wylie
patent: 3340907 (1967-09-01), Bily
patent: 3455333 (1969-07-01), Bily
patent: 3743049 (1973-07-01), Levriri
patent: 4025055 (1977-05-01), Strolenberg
patent: 4155463 (1979-05-01), Buzzichellil

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