Patent ID: 8487485

Claim:
A linear synchronous motor comprising: a first assembly configured to work as one of a mover and a stator, the first assembly including: a shaft; and at least one array of a plurality of permanent magnets mounted on the shaft; and, a second assembly configured to work as the other of the mover and the stator, the second assembly including: a plurality of windings each formed of an annularly wound winding conductor and disposed at predetermined intervals in an axial direction of the shaft to surround the shaft; and a core unit including: a plurality of magnetic pole portions formed by laminating a plurality of magnetic steel plates, and disposed concentrically with the shaft to surround the shaft and also disposed at intervals in the axial direction such that two adjacent magnetic pole portions define a space therebetween where one of the windings is disposed, the magnetic pole portions each including a magnetic pole surface facing the at least one array of the permanent magnets of the first assembly with a predetermined gap therebetween; and a yoke magnetically connecting the magnetic pole portions, wherein the second assembly includes: at least one slide shaft fixed to the core unit and disposed in parallel to the shaft, the at least one slide shaft passing through the core unit in a direction parallel to the axial direction; and the first assembly includes: at least one set of slide bearings that slidably supports both end portions of the at least one slide shaft.