Conveying apparatus

Details Conveying apparatus Conveying apparatus

1985-12-12

1987-12-29

Duggan, Donovan F.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Plural linear-movement motors

318135, 310 13, H02K 4100

Patent

active

047163461

ABSTRACT:
A conveying apparatus of the type including a plurality of driving means disposed in the spaced relation along a track so as to allow a carriage to move on the track under the influence of inertia with the aid of propulsive force or reverse propulsive force which is generated by the plural driving means. The track has at least a curve and another driving means is disposed at the position upstream of the curve as seen in the direction of transportation of the carriage. To assure that the carriage moves along the curve at a proper moving speed a desired speed is so determined that centrifugal force exerted on the carriage is maintained at a level equal to or lower than a predetermined value. Speed controlling is effected in such a manner that the carriage is decelerated or accelerated from the moving speed detected at the time before it enters the curve to the desired speed by means of the last-mentioned driving means.

REFERENCES:
patent: 3675585 (1972-07-01), Wiart
patent: 3937431 (1976-02-01), Guntner
patent: 4299173 (1981-11-01), Arima
patent: 4633148 (1986-12-01), Prucher
patent: 4675582 (1987-06-01), Hommes et al.
Japanese Patent Laid-Open 55-119619, laid-open on Sep. 13, 1980, Kawashima et al.

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