Patent ID: 9555720
Date: 2017-01-31
CPC Classifications: B60L,B61B,B61C,B65G

Claim:
1. A transport device for conveying products comprising: at least one movable carriage for conveying a product; a stationary, endless guide rail for guiding the at least one carriage; and a linear-motor drive device for driving the at least one carriage; wherein the at least one carriage comprises at least two permanent magnets, which interact with the linear-motor drive device; and wherein the at least one carriage further comprises a plurality of running rollers, which rest on first and second guide surfaces of the guide rail arranged on different planes and roll along the first and second guide surfaces when the at least one carriage moves; wherein the at least one carriage comprises first and second halves, mirror-symmetric to a longitudinal center plane of the transport device, each of the first and second halves comprising three running rollers, wherein the three running rollers of the first half of the at least one carriage rest on two first and second guide surfaces on a first side wall of the guide rail, and the three running rollers of the second half of the at least one carriage rest on two other first and second guide surfaces on a second side wall of the guide rail; wherein, during movement of the at least one carriage, the three running rollers of the first half of the at least one carriage roll along the first and second guide surfaces on the first side wall of the guide rail, and the three running rollers of the second half of the at least one carriage roll along the first and second guide surfaces on the second side wall of the guide rail; wherein the first and second guide surfaces of each of the first and second side walls are at an angle of 80° to 100° to each other, wherein the first and second guide surfaces of each of the first and second side walls of the guide rail are spaced apart and face each other; and wherein the at least one carriage comprises a substantially horseshoe-shaped or inverted U-shaped base body having sidepieces, from which sidepieces the running rollers inwardly project; wherein the at least one carriage and the guide rail are symmetric relative to the longitudinal center plane; and wherein the first guide surface and the second guide surface of each of the first and second side walls of the guide rail are arranged at an acute angle to the longitudinal center plane, wherein the acute angle between each of the first and second guide surfaces and the longitudinal center plane is 40° to 50°.