Material or article handling – Self-loading or unloading vehicles – With load-receiving portion – or significant section thereof,...
Patent
1988-03-23
1990-04-10
Kashnikow, Andres
Material or article handling
Self-loading or unloading vehicles
With load-receiving portion, or significant section thereof,...
180209, 280612, 280 4323, 414484, 414495, B60P 310
Patent
active
049155776
ABSTRACT:
A self-propelled mobile cradle for boats including a frame having transversely spaced, longitudinally extending side members interconnected at their forward ends to form an opening extending inwardly from the rear end of the frame. Forward driven wheels are used in a caster-like arrangement for supporting the forward end of the frame. Rear wheel are disposed at the rear of the frame for support. The rear wheels comprises at least two wheels each independently operable from the other, one of the wheels being disposed on each side of the frame. Hydraulically operated cylinders are used for raising or lowering the frame relative to the rear wheels. The rear wheels are disposed on independently operable suspension for each of the rear wheels, whereby one side of the frame can be raised or lowered relative to the other side of the frame. A forward driving mechanism is used for raising or lowering the foward end of the frame relative to the wheels. The wheels are turnable by a steering device which turns the forward wheels about an axis generally normal to the longitudinally extending side members, whereby the cradle can be turned by turning the forward wheels. The forward wheels are driven by the same power supply that powers the forward and rear lifting devices. Pads and extendable arms are attached to and disposed on each side of the longitudinally extending side members to engage the bottom of a boat and hold it stationary relative to the cradle.
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Forman Michael J.
Kashnikow Andres
Meegan Owen J.
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