| 摘要 |
A rail conveyor, including an I-shaped main rail, a trolley guided at the I-shaped rail and having lateral guide rollers, a running wheel rolling on the rail, a counter-wheel and an extra rail for the counter-wheel for increasing frictional engagement of the running wheel with the main rail, the extra rail extending parallel to the main rail, the extra rail being arranged laterally adjacent to the rail, the running wheel and the counter-wheel each having an axle that lies in a plane aligned perpendicular to the longitudinal extension of the main rail.
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