Automatic trackless self-propelled carriage conveyance installat

Details Automatic trackless self-propelled carriage conveyance installat Automatic trackless self-propelled carriage conveyance installat

1987-06-26

1988-10-04

Love, John J.

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

180214, 318587, B62D 124

Patent

active

047750243

ABSTRACT:
The carriage of the automatic trackless self-propelled carriage conveyance installation contains a steered front wheel arranged at the central lengthwise axis of the vehicle structure. There are also provided two steerable rear wheels. The steering structure of the front wheel is connected by a coupling rod with a central steering crank which, in turn, is connected via steering or tie rods with steering levers or arms of the rear wheels. To render posssible a faultless travel of the carriage through curves of a predeterminate path of travel or course, the arrangement is structured such that imaginary extensions of the rotational axes of the front and rear wheels, when undertaking a steering deflection or steering action at the carriage, intersect at a common point whose spacing from the median plane of the front wheel corresponds at least approximately to the radius of curvature of the path of travel. In this way, it is possible for such carriage to carry out an exact tracking of the path of travel during both its forward and reverse directions of travel, so that such automatic trackless self-propelled carriage conveyance installation can be arranged in narrow aisles or corridors or the like and can negotiate tight or small radii of curvature of predeterminate paths of travel intended for the carriage.

REFERENCES:
patent: 1828905 (1931-10-01), Mossay
patent: 2834605 (1958-05-01), McCollough
patent: 3245493 (1966-04-01), Barrett, Jr.
patent: 3628624 (1971-12-01), Wesener
patent: 3903979 (1975-09-01), Perrotin
patent: 4307329 (1981-12-01), Taylor

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