Patent ID: 7665595

Claim:
A transportation system for a transportation device, comprising a transportation chain with a plurality of chain links joined into an articulated endless chain and a sprocket to reverse a direction of the transportation chain, the transportation chain having a plurality of equally spaced guiding elements which, in a transportation area of the transportation device are guided along a guide rail, characterized in that a plurality of rollers are mechanically linked to the transportation chain and oriented in such a manner as to roll along the guide rail when the drive system of the transportation device is in motion, the sprocket having on its outer circumference recesses to at least partly accommodate the rollers, a guide element comprises at least one sliding element mechanically linked to the transportation chain and oriented in such a manner as to slide along the guide rail when the transportation system of the transportation device is in motion, and the sprocket has on an outer circumference recesses to at least partly accommodate the at least one sliding element.