Conveyor system, particularly for material carriers for use in medical laboratories

A conveyor system particularly for material carriers for use in medical laboratories, the conveyor system comprising a first conveying path comprising components having upwardly extending side walls, the conveying path having a beginning and an end, two endless conveyor belts guided parallel to each other in a horizontal plane and driven by a motor in the same direction on the components, the conveyor belts being guided around deflection rollers at the beginning and the end of the conveying path, further comprising a second conveying path extending in the horizontal plane parallel next to a portion of the first conveying path, the second conveying path comprising second components having upwardly extending side walls, the second conveying path having a beginning and as end, two endless conveying belts guided parallel to each other in a horizontal plane and driven by another motor in the same direction on the second components, the conveyor belts of the second conveying path being guided around deflection rollers at the beginning and the end of the second conveying path, further comprising at least one switch for transferring the material carriers between the first conveying path and the second conveying path, wherein the second conveying path has a T-shaped configuration including a cross-member and a beam member, the cross-member extending parallel to the first conveying path and the beam member extending perpendicularly to the first conveying path, so that the second conveying path comprises a 90.degree. bend, wherein, in the cross-member of the second conveying path, the conveyor belts include a return portion extending underneath the second conveying path.