US 6,543,790 B2Granted

Aircraft towbar

OwnerRaymond W. Johnsoninventor

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Abstract

A towbar for the towing of aircraft which will enable the user to attach the same to, selectively, the front nose wheel or the front wheel strut of an aircraft. The towbar includes a longitudinally extending towing bar with a vehicle attachment on one end thereof to facilitate attachment to a towing vehicle with the other end thereof provided with a pair of arms to engage the nose wheel or strut. The arms are openable and closeable for attachment to the wheel or strut and the mechanics for opening and closing are arranged within the longitudinal towing bar. The mechanism for opening and closing includes a slide moveable on the bar in a longitudinal direction and a structure for converting this longitudinal motion to rotational motion for rotating an arm control rod which, through a threaded end and threaded bearing will move one arm with respect to the other.

Claims5

Dependent claims

An aircraft towing device arranged and constructed to connect to the nose wheel of or to engage the nose wheel strut of an aircraft including:

(a) a longitudinally extending towing bar;
(b) a cross arm disposed at one end of said towing bar, said cross arm supporting a pair of arms at outward ends thereof where one of said pair of arms is rotatably mounted to one of said outward ends of said cross arm;
(c) one of said pair of arms being shiftable with respect to the other such arm to increase and decrease the spacing between ends of said arms, whereby the nose wheel or wheel strut of an aircraft may be secured between said pair of arms;
(d) a rotatable rod member having a threaded end received into the shiftable one of the pair of arms;
(e) a longitudinally shiftable slide member arranged on said towing bar;
and
(f) a cable coupled between the slide member and the rotatable rod member whereby longitudinal shifting of the slide member is converted to rotation of the rotatable rod member.

4 more elements

Dependencies are inferred from the claim text.