Patent ID: 6951626
Filing Date: 2005-10-04
Classification: A44B,A44D,B29C,Y10T

Abstract:
1. A manufacturing method of a snap fastener with tape for integrally molding a female button made of synthetic resin on front and back faces of tape such that the female button holds a peripheral edge of an attachment hole of the tape having at least one attachment hole, comprising the steps of: fixing the tape with the attachment hole in position between cavities of a fixed mold and a movable mold; closing the movable mold against the fixed mold and clamping a tape portion of the peripheral edge of the attachment hole by at least a pair of clamping members projecting to face each other in the cavities of the molds; forming an introducing passage for introducing molten resin through a center portion of the attachment hole of the tape and at least one molten resin guide passage for supplying the molten resin linearly from the introducing passage as a center toward the peripheral edge of the attachment hole; connecting a portion of the cavities for forming at least one cut-out recessed in a diameter direction of an engaging opening at a center portion of the snap fastener with said at least one molten resin guide passage; and injecting the molten resin into the cavity through the molten resin guide passage toward the peripheral edge of the attachment hole of the tape.