Coil winding apparatus to fabricate coil-wound article for electric motor, generator and alternator

摘要

A coil winding apparatus to fabricate a coil-wound article comprises a mandrel having an outer periphery, first and second side ends through which is axially formed an orifice to define an inner periphery. Slots are radially formed along each side section of the outer periphery to allow communication between the inner and outer peripheries. Grooves are circularly formed to intersect the slots. Upright portions of the hooks are radially aligned with the slots to enable their reciprocal movements through the slots. Retainer members sustain the hooks by the holes. Elastic rings are worn in and along the grooves to elastically maintain each upright portion of the corresponding hooks below the outer periphery of the mandrel. Adjusters are detachably inserted through the orifice to allow the upright portions to remain above the outer periphery of the mandrel.