Method of controlling a transport means and a transport means fo

Details Method of controlling a transport means and a transport means fo Method of controlling a transport means and a transport means fo

1989-05-23

1991-05-07

Bertsch, Richard A.

Land vehicles

Wheeled

Articulated vehicle

280442, 180132, B62D 5306

Patent

active

050130579

ABSTRACT:
A transport means (1) comprising a body (2) and several wheels (3a to 3h) positioned in the longitudinal direction one after another on both sides of the body and turnable about vertical axes (4a to 4h). The transport means (1) is supported at one end turnably by means of a tractor means (6) by means of which the direction of travel of the transport means (1) is controlled. In order that the transport means could be controlled more easily, a control sensor (7) is mounted in a swing joint (5) connecting the transport means (1) to the tractor means (6), which control sensor indicates the angle (.alpha.) of turning between the tractor means (6) and the transport means (1), whereby the sensor (7) together with an adjusting means (8) controls the turning of the wheels (3a to 3h) in proportion to the angle (.alpha.) of turning. When the angle (.alpha.) of turning is, e.g., no more than 20.degree., the adjusting means (8) controls the wheels (3a to 3h) so that they turn in such a way that the transport means (1) turns about a center (9) of turning positioned in the middle thereof in the longitudinal direction, whereby the turning radii at the front and rear end are substantially equal. When the angle (.alpha.) of turning exceeds 20.degree., the position of the center (9) of turning is shifted in the longitudinal direction of the transport means (1) in proportion to the value of the angle (.alpha.) of turning towards the rear end of the transport means (1), whereby in parking situations it behaves similarly as a conventional trailer, but the axes of all the wheels (3a to 3h) go through the center (9) of turning, whereby the wheels always rotate without sliding.

REFERENCES:
patent: 3733084 (1973-05-01), Mauck
patent: 3734538 (1973-05-01), Humes
patent: 4412594 (1983-11-01), Furukawa
patent: 4494766 (1985-01-01), McHugh et al.

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