Material or article handling – Self-loading or unloading vehicles – With load-receiving portion – or significant section thereof,...
Patent
1982-01-29
1985-07-16
Sheridan, Robert G.
Material or article handling
Self-loading or unloading vehicles
With load-receiving portion, or significant section thereof,...
B60P 154
Patent
active
045293503
ABSTRACT:
A pivotable arch structure (18) having an integral log bunk (30) is pivotable at one end (P) thereof relative to a main frame (15). The log bunk (30) includes several longitudinally arranged bunk webs (36) which are bolstered by laterally arranged support beams (38) connected thereto. A bumper (40) is arranged adjacent the end of the bunk webs (36) near the pivot axis (22). The longitudinal disposition of the bunk webs (36) promotes longitudinal log travel thereon while the bumper (40) guides logs initially engaged therewith in a direction to promote their subsequent engagement with the bunk webs (36). The longitudinally arranged bunk webs (36) also provide high operator visibility for various pivotal positions of the arch structure (18).
REFERENCES:
patent: 1987688 (1935-01-01), Lamb
patent: 3424326 (1969-01-01), Thatcher
patent: 3841507 (1974-10-01), Barwise
patent: 4278391 (1981-07-01), Dagenais
patent: 4278392 (1981-07-01), Meisel
FMC Corporation, Model 220CA Choker Arch High Speed Steel Track Logging Vehicle, 1/79, 1-6.
FMC Corporation, Model 220AG Arch Grapple High Speed Steel Track Logging Vehicle, 1/79, 1-6.
Caterpillar Tractor Co.
Keen Joseph W.
Sheridan Robert G.
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