Adjustable load lifting spreader frame

Details Adjustable load lifting spreader frame Adjustable load lifting spreader frame

1979-05-31

1981-05-12

Spar, Robert J.

Material or article handling

Load bridging vehicle

212213, 212220, 294 67BC, B62D 4300

Patent

active

042669049

ABSTRACT:
A spreader frame assembly for connecting onto large, elongate loads such as shipping containers and trailer vans for lifting and moving such loads. The assembly includes a trolley mounted on a straddle carrier with a spreader frame supported beneath the trolley. A positioning column descends from the trolley and makes a swivel connection at the middle of the spreader frame, and a pair of load lifting hydraulic cylinders mounted on the trolley connect at widely spaced points with the spreader frame. A rotate cylinder between the spreader frame and positioning column rotates the frame around a vertical axis, a tilt cylinder also between the spreader frame and column tilts the frame around a horizontal axis, and a translating cylinder between the trolley and column pivots the column to translate the spreader frame.

REFERENCES:
patent: Re27905 (1974-01-01), Whiteman
patent: 3146903 (1964-09-01), Bjorklund
patent: 3161309 (1964-12-01), Baudhuin et al.
patent: 3251496 (1966-05-01), Lamer
patent: 3494491 (1970-02-01), Sumida
patent: 3520431 (1970-07-01), Tax
patent: 3982644 (1976-09-01), Pease

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