Towing vehicle for shunting aircraft on the ground

Details Towing vehicle for shunting aircraft on the ground Towing vehicle for shunting aircraft on the ground

1989-11-01

1991-05-07

Werner, Frank E.

Material or article handling

Wheel and wheel-type article handler and transporter

Opposed horizontally reciprocable engaging elements

180 141, 414563, 414426, 244 50, 280402, B64F 122

Patent

active

050132059

ABSTRACT:
In conventional towing vehicles the front wheels of the aircraft are pulled or pushed onto a lifting shovel or the like and the aircraft or the towing vehicle must be maintained in motion so that the front wheel assembly can be acted upon by undesirable forces.
In order to ensure gentle and reliable retention and lifting of the front wheel assembly from a state of standstill as well as equally reliable and gentle towing away of the aircraft, there are provided for each front wheel four gripper arms which engage the periphery of the front wheel. The rear gripper arms are pivotable inwardly in a vertical plane. The idle positions of all gripper arms are selected by a computer which is programmed in dependency on the respective aircraft type. The arrangement is such that the axis of the strut of the front wheel is always disposed at right angles to the axis of the non-steerable rear wheels of the towing vehicle and the axis of a live ring for the holding- and lifting device invariably coincides with the axis of the front wheel. The towing vehicle can tow away at least five different types of aircraft without changes of the towing vehicle (with the exception of the computer program).

REFERENCES:
patent: 4113041 (1978-09-01), Birkeholm
patent: 4632625 (1986-12-01), Schuller et al.
patent: 4911604 (1990-03-01), Pollner et al.

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