Transportation system of a floated-carrier type

Details Transportation system of a floated-carrier type Transportation system of a floated-carrier type

1987-05-06

1989-03-14

Marbert, James B.

Railways

Magnetically suspended car

Including means to sense or control car position or attitude...

104249, 104293, B60L 1306, B60L 1310

Patent

active

048116670

ABSTRACT:
A transportation system of a floated-carrier type according to this invention includes a carrier capable of running along guide rails with a cargo and load carried thereon. A magnetic unit is mounted on the carrier to float the carrier from the guide rails. A slowing-down device is provided to slow down the carrier when the carrier is just about to enter into a stop position. Projections of ferromagnetic material are provided on the side of predetermined portions of guide rails which the magnetic unit of the carrier confronts when the carrier is stopped in the stop position. The magnetic unit, together with the guide rails, establishes a magnetic circuit. The magnetic resistance in the magnetic circuit is smaller at the predetermined portions of the guide rails where the aforementioned projections are provided than at other portions of the guide rails. When, in this case, the carrier arrives substantially at the stop position, the magnetic flux due to the magnetic unit flows through the aforementioned magnetic circuit in an increasing amount, assuring an increased attractive force between the magnetic unit and the predetermined portions of the guide rails where the projections are provided. As a result, the carrier is attracted toward the location of these predetermined portions of the guide rails so that it is positioned precisely in the stop position.

REFERENCES:
patent: 3736881 (1973-06-01), Lorinet
patent: 3899979 (1975-08-01), Godsey, Jr.
patent: 3937148 (1976-02-01), Simpson
patent: 3937431 (1976-02-01), Guntner
patent: 4652800 (1987-03-01), Fukuwatari
patent: 4690066 (1987-09-01), Morishita et al.

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