Patent ID: 7318379

Claim:
A rail-mounted transport system drivable by a linear motor, comprising: a network including first pair of rails disposed parallel to and at a spread distance from one another and a second pair of rails disposed parallel to and at the spread distance from one another and at an angle with the first pair of rails, the second pair of rails intersecting the first pair of rails so as to form an intersection, wherein each of the rails of at least one of the first and second pair have a flat travel surface passing continuously through the intersection and at least one rail in each of the first pair and second pair includes a respective guide profiles outside of the intersection; a two-part transporter trolley including a plurality of wheels spaced apart at the spread distance from each other and swivelable about a pivot, and a plurality of horizontal guide rollers, wherein the plurality of the wheels and the plurality of guide rollers are configured to turn in the intersection so as to enable lengthwise and crosswise travel; a plurality of stators disposed at the network; a plurality of magnets disposed on the transporter trolley in the lengthwise and crosswise directions and configured to interact with the stators so as to move the transporter trolley in the lengthwise and crosswise directions; a plurality of two-part wheel housings, each including an outer wheel housing supporting at least one guide roller and a pivot bearing, and an inner wheel housing supporting at least one wheel, the inner and the outer wheel housings being connected using a low-lying bushing/bolt bearing positioned in a direction of travel; and a limiting element configured to secure and stop the transporter trolley, the limiting element including a stop lever configured to selectively act against the trolley and to fold down in the direction of travel.