Patent ID: 6854592
Filing Date: 2005-02-15
Classification: B65G

Abstract:
1. A conveying apparatus for conveying a work, comprising: a three-phase synchronous motor which is electrically connected to a three-phase AC power supply and is driven to output power by a three-phase AC voltage output from said three-phase AC power supply; and a conveyor body which is operationally coupled to said three-phase synchronous motor and operates to convey said work with said power output from said three-phase synchronous motor, wherein said three-phase synchronous motor has a stator including a plurality of teeth laid at predetermined equiangular distances, a first excitation coil, a second excitation coil, and a third excitation coil; wherein each of said teeth has wound around it one of the first to third excitation coils; wherein each of a group of those teeth around which said first excitation coil is wound, each of a group of those teeth around which said second excitation coil is wound, and each of a group of those teeth around which said third excitation coil is wound are laid out with two of said teeth of other groups placed in between adjoining teeth of said each group; and wherein one of three single-phase AC voltages included in said three-phase AC voltage is supplied to each of said first to third excitation coils.