Roller guide device for use on a vehicle

Details Roller guide device for use on a vehicle Roller guide device for use on a vehicle

1982-12-21

1985-11-26

Reese, Randolph A.

Railways

Derailment guards

Guide rollers

74 98, 180131, B62D 126, B61F 900

Patent

active

045548749

ABSTRACT:
A roller guide device enabling a vehicle to be steered automatically consists of a roller retaining mechanism having a retaining lever connected to a steering linkage of a vehicle, and a pivoting lever which is pivotally connected to the forward end of the retaining lever. Arranged at the free end of the pivoting lever is a freely rotatable contact roller which can be pivoted from a retracted position in which the pivoting lever essentially coincides with the retaining lever in the direction of the pivoting shaft, into an operatively extended essentially straight-line position. The pivoting lever additionally rotates as a function of its pivoting motion about its longitudinal axis through about 90.degree., so that retraction and extension of the contact roller by pivoting through 180.degree. is achieved by a primary drive, with the contact roller concurrently rotating through 90.degree. through a secondary drive. In its extended position, the contact roller is brought into contact with and urged against a stationary guide track so as to roll therealong. This allows for mechanical, fully automatic track control of the vehicle when the contact roller is extended. In the nonautomatic steering mode, the retracted contact roller is arranged within the contour of the vehicle body to obviate road hazards when a roller guide device on a vehicle projects laterally therefrom.

REFERENCES:
patent: 3149712 (1964-09-01), Soman
patent: 3234891 (1966-02-01), Hampton et al.
patent: 3712238 (1973-01-01), Colovas et al.

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