Aeronautics and astronautics – Aircraft structure – Passenger or cargo loading or discharging
Patent
1980-12-31
1983-10-11
Schacher, Richard A.
Aeronautics and astronautics
Aircraft structure
Passenger or cargo loading or discharging
414343, 414347, 414495, 414498, B64C 122
Patent
active
044087390
ABSTRACT:
An air transportable cargo loader for an airplane includes a platform body supportively coupled to articulated foldable leg assemblies at its opposite ends. The leg assemblies are independently foldable between extended positions wherein they support the respective ends of the platform at a height sufficient to serve the cargo openings of a commercial transport airplane and retracted positions wherein the leg assemblies are folded compactly against the underside of the platform body for stowage within the airplane. The cargo loader can be deployed from an airplane for loading and unloading operations without any ground-based assistance, and can be likewise loaded aboard and stowed in the airplane without assistance and further can support cargo while so stowed. The leg assemblies may be actuated synchronously to raise and lower the platform in a horizontal position in the manner of an elevator, or they may be actuated independently to position the ends of the platform at different selected heights so as to form a loading ramp. An individual cargo loader may be employed as a ramp, for example, with an airplane having a kneelable nose landing gear assembly. Alternatively, two or more of the cargo loaders may be coupled together in tandem to form a loading ramp of relatively lesser slope. The leg assemblies of the cargo loader, when retracted against the underside of the cargo loader, include substantially planar bearing pad support surfaces which enable the cargo loader to be moved while aboard an airplane on a conventional air cargo deck having cargo casters or rollers.
REFERENCES:
patent: 3233767 (1966-02-01), Goodacre
patent: 3972427 (1976-08-01), Stanley
patent: 4235399 (1980-11-01), Shorey
Schacher Richard A,.
The Boeing Company
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