Abstract: The transfer device comprises a central structure (20) having at least one transport segment (S21, S22, S23) with drive means (30-1, 30-2, 30-3). The transport segment is intended to receive a carriage (C1, C2, C3) which is mounted so as to be movable with respect to the central structure in a direction of movement. Said carriage has a plate bearing a series of permanent magnets in the direction of movement. The drive means (30) comprise a worm (30-1, 30-2, 30-3) along the transport segment (S21, S22, S23), said worm comprising a ferromagnetic helical perimeter, being mounted so as to be rotatable about an axis parallel to said direction of movement, and being arranged such that the successive turns of the helical perimeter are adjacent to at least some of the permanent magnets of said series.

Abstract: The transfer device comprises a central structure (20) having at least one transport segment (S21, S22, S23) with drive means (30-1, 30-2, 30-3). The transport segment is intended to receive a carriage (C1, C2, C3) which is mounted so as to be movable with respect to the central structure in a direction of movement. Said carriage has a plate bearing a series of permanent magnets in the direction of movement. The drive means (30) comprise a worm (30-1, 30-2, 30-3) along the transport segment (S21, S22, S23), said worm comprising a ferromagnetic helical perimeter, being mounted so as to be rotatable about an axis parallel to said direction of movement, and being arranged such that the successive turns of the helical perimeter are adjacent to at least some of the permanent magnets of said series.