Material or article handling – Wheel and wheel-type article handler and transporter
Patent
1989-03-24
1990-09-11
Spar, Robert J.
Material or article handling
Wheel and wheel-type article handler and transporter
180904, 212155, 212182, 244 50, 280402, 2804912, 414563, 414728, B64F 122, B60P 154, B60D 700
Patent
active
049557777
ABSTRACT:
An aircraft ground handling tractor (1) includes a manoeuverable boom (6) mounted on it. The free end of the manoeuverable boom (6) includes a connector (18) capable of being connected to an aircraft nosewheel assembly so that the tractor (1) can be connected to the nosewheel assembly through the boom (6) to enable it to pull or push the aircraft. The manoeuverable boom (6) is retractable completely within the outer limits of the tractor (1) so that, when the tractor (1) is not pulling an aircraft the manoeuverable boom (6) is wholly retracted so that it is protected from damage. Preferably the tractor (1) includes a longitudinal tunnel (7), and the manoeuverable boom (6) is received within this tunnel (7) in its retracted position. Preferably the movement functions of the boom (6) are all powered and all controlled from a driving cab (2) of the ground handling tractor (1), and the tractor (1) includes a separate, hand held control unit which enables them to be controlled remotely from the driving cab. Preferably the manoeuverable boom (6) includes load sensors to monitor the thrust and any turning torque applied by the boom to the aircraft nosewheel assembly and a control system which compares the output of the load sensors with predetermined limits based on the type of aircraft being handled and which provides a warning if the loads applied through the boom (6) to the aircraft exceed predetermined limits.
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Katz Robert S.
M L Douglas Equipment Ltd
Spar Robert J.
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