Patent ID: 8434213
Filing Date: 2013-05-07
Classification: H01F,H02K,Y10T

Abstract:
1. A coil winding method for forming a stacked coil by winding a wire rod supplied from a nozzle to a claw section provided between upper and lower plates, wherein an upper jig to which the upper plate is attached is coaxially joined with a lower jig to which the lower plate is attached and the upper and lower jigs are supported so as to be integrally rotated in a predetermined direction, comprising steps of: drawing the wire rod along a guide groove formed on an under surface of the lower plate after securing a winding beginning portion of the wire rod by a first winding securing section of the lower plate; forming the stacked coil by winding the wire rod around the peripheral surface of the claw section after drawing the wire rod from an outer peripheral portion of the lower plate to an inner peripheral portion thereof by exposing the wire rod from an under surface of the lower plate to an upper surface thereof; and securing a winding ending portion of the wire rod to a second winding securing section of the lower plate after drawing the wire rod from the inner peripheral portion to the outer peripheral portion along the upper surface of the lower plate; wherein the winding beginning portion of the wire rod secured to the first winding securing section and the winding ending portion of the wire rod secured to the second winding securing section are disposed so as to cross from each other at the upper and under surfaces of the lower plate.