Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1991-06-18
1993-01-05
Huppert, Michael S.
Material or article handling
Vertically swinging load support
Shovel or fork type
414722, 414918, E02F 328
Patent
active
051764911
ABSTRACT:
A backhoe apparatus with a boom structure which is movable overcenter in a fore-and-aft direction and a boom actuator arranged in fore-and-aft alignment with and protected by lateral sides of the boom structure. A swing tower is connected about a lower pivot axis to a lower end of the boom and allows for lateral swinging movement of the boom. The swing tower allows for overcenter movement of the boom to opposite sides of an upper pivot axis on the swing tower whereat one end of the boom actuator is secured. The boom structure has a curved configuration at its lower end to accommodate nesting of the boom actuator while maintaining torsional rigidity for the boom.
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Case Accent on Loader/Backhoes Product Sheet dated Dec., 1987, J. I. Case Company, Racine, Wis.
Advertisement entitled: "Cat Announces a Boom in Backhoe Loaders", p. 51 of "Equipment Today", Aug. 1990.
Advertisement of Ford 555C Xtra-Vator, p. 142 of "Equipment Today Showcase '90".
Case Corporation
Hienz William M.
Huppert Michael S.
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