Patent ID: 6239517
Filing Date: 2001-05-29
Classification: B41J,H02K

Abstract:
A linear shuttle motor assembly comprising:a shuttle housing;a rotor reciprocally movably supported by said shuttle housing, said rotor including a rotor shaft and a plurality of permanent magnets juxtaposed in a direction in which said rotor shaft extends, said plurality of permanent magnets forming an outer surface and generating a number of lines of magnetic force in a direction perpendicular to the outer surface;a stator reciprocally movably supported by said shuttle housing, said stator including a stator housing, a reversal solenoid mounted on said stator housing for reversing a direction in which said stator moves, and a fixed-speed solenoid mounted on said stator housing for moving said stator at a fixed speed; and180 degree phase synchronizing mechanism connected to said rotor and said stator, for synchronizing reciprocal movements of said rotor and said stator in such a manner that a sum of displacements of said rotor and said stator is zeroed.