Line sorter

A line sorter for sorting items of various shapes, sizes and weights, the line sorter comprising

• an upper track section and a lower track section, where the upper track section is provided in line with, but directly above the lower track section, and where the upper section and the lower section are connected at end track sections, one end track section at each of two ends of the line sorter,
• at least one position dedicated induction of items onto the line sorter,
• a plurality of discharges for sorting one or more items into their respective discharge,
• a closed loop chain comprising sorting carts or slats coupled at couplings and for moving the carts or slats along the upper track section, the lower track section and the end track sections, wherein the couplings are configured to enable the carts or slats to pivot relative to each other about a horizontal or substantially horizontal pivot axis when in operation,
• a linear synchronous motor propulsion system for moving said closed loop chain, the linear synchronous motor propulsion system comprising a stationary travelling field stator cooperating with a plurality of permanent magnets positioned on the carts or slats of the closed loop chain, wherein
• a first continuous row of said plurality of permanent magnets is formed by the magnets of a row of carts or slats along the upper track section and a second continuous row of said plurality of permanent magnets is formed by the magnets of a row of carts or slats along the lower track section, and wherein the plurality of permanent magnets on the carts or slats follows or substantially follows a curve form at the end track sections, wherein
• a gap between adjacent magnets in the first and second continuous rows of magnets is the same or substantially the same between each of the magnets
• wherein a coupling distance from a measurement line between centres of each track end section and to a pivot axis of a coupling is maximally the same or substantially maximally the same as a distance from the measurement line and to an outer surface of a magnet provided adjacent to the coupling.

A line sorter for sorting items of various shapes, sizes and weights, the line sorter comprising

• an upper track section and a lower track section, where the upper track section is provided in line with, but directly above the lower track section, and where the upper section and the lower section are connected at end track sections, one end track section at each of two ends of the line sorter,
• at least one position dedicated induction of items onto the line sorter,
• a plurality of discharges for sorting one or more items into their respective discharge,
• a closed loop chain comprising sorting carts or slats coupled at couplings and for moving the carts or slats along the upper track section, the lower track section and the end track sections, wherein the couplings are configured to enable the carts or slats to pivot relative to each other about a horizontal or substantially horizontal pivot axis when in operation,
• a linear synchronous motor propulsion system for moving said closed loop chain, the linear synchronous motor propulsion system comprising a stationary travelling field stator cooperating with a plurality of permanent magnets positioned on the carts or slats of the closed loop chain, wherein
• a first continuous row of said plurality of permanent magnets is formed by the magnets of a row of carts or slats along the upper track section and a second continuous row of said plurality of permanent magnets is formed by the magnets of a row of carts or slats along the lower track section, and wherein the plurality of permanent magnets on the carts or slats follows or substantially follows a curve form at the end track sections, wherein
• a gap between adjacent magnets in the first and second continuous rows of magnets is the same or substantially the same between each of the magnets
• wherein a coupling distance from a measurement line between centres of each track end section and to a pivot axis of a coupling is the same or substantially the same as a distance from the measurement line and to an inner surface of a permanent magnet provided adjacent to the coupling.