Patent · US Expired

Aircraft tractor without tow-bar with adjustable tow arms

US5054714A · kind A · utility

20Cited by

4References

4Claims

0Family size

Assignee

Man Gutehoffnungshutte Aktiengesellschaft · DE

Inventors

Wilhelm Franken · Wesel, DE
Dieter Pohe · Gelsenkirchen, DE
Lars T. Michaelsen · Herdecke, DE

Key dates

Filing date	Apr 27, 1990
Grant date	Oct 8, 1991
Priority date	—
Expiry date	Apr 27, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S180/904
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The aircraft tractor arrangement maintains a uniform degree of reliability with which the nose wheel landing gear, which is standing on a lifting platform that is arranged on the front part and extends into a recess (26), is held down on the surface of the lifting platform which supports the nose wheel landing gear at different nose wheel diameters. Each telescoping rod (30) is hinged (40, 44, 46) to the front part (10.1) directly in the front. A connecting hydraulic cylinder (42) is provided in the rear. The hydraulic cylinder (46) for longitudinal adjustment, and also the hydraulic cylinder (36) for moving the holder (34) on the fixed part (30.1) of the telescoping rod (30) associated with it are arranged ridgedly. This arrangement allows an adjustability in height of the two rear tow arms and at the same time of the front holders, which can come into contact with the two desired zones of the wheel circumference, regardless of the nose wheel diameter. The distance between the arms and the holders is adjustable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.