Method of controlling a transport means and a transport...

B - Operations – Transporting – 62 – D

Patent

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280/106

B62D 53/06 (2006.01)

Patent

CA 1316954

Abstract A transport means (1) comprising a body (2) and sev- eral 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 con- trolled. In order that the transport means could be controlled more easily, a control sensor (7) is mount- ed in a swing joint (5) connecting the transport means (1) to the tractor means (6), which control sensor in- dicates 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) con- trols the turning of the wheels (3a to 3h) in propor- tion to the angle (.alpha.) of turning. When the angle (.alpha.) of turning is, e.g., no more than 20°, the ad- justing means (8) controls the wheels (3a to 3h) so that they turn in such a way that the transport means (1) turns about a centre (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 turn- ing exceeds 20°, the position of the centre (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 centre (9) of turning, whereby the wheels always rotate without sliding. (Figures 3 and 5)

600705

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