Slide fastener with separable bottom stop assembly and method of manufacturing the same

A method of manufacturing a slide fastener with a separable bottom stop assembly having linear fastener element rows along opposing side edges of a pair of fastener tapes and the separable bottom stop assembly comprising an insert pin, a box pin and a box made of synthetic resin at an end thereof, said method for molding integrally said insert pin and said box pin so as to include core portions adjacent end portions of the fastener element rows, comprising:

• introducing the core portion into an injection-molding die for the insert pin or the box pin;
• pressing up the core portion disposed in a molding cavity of the injection-molding die from a rear face side without a core thread to a front face side of the fastener tape;
• and
• injecting molten resin into said molding cavity so that the molten resin flows into molding spaces on the front and rear face sides of the core portion and is molded integrally around the core portion.

A method of manufacturing a slide fastener with a separable bottom stop assembly having linear fastener element rows along opposing side edges of a pair of fastener tapes and the separable bottom stop assembly comprising an insert pin, a box pin and a box made of synthetic resin at an end thereof, said method for molding integrally said insert pin and said box pin so as to include core portions adjacent end portions of the fastener element rows, comprising:

• forming a molding cavity for the insert pin or the box pin in an injection-molding die so that said cavity inclines relative to a core-portion-insertion plane toward a rear face side without a core thread of the fastener tape;
• introducing the core portion into said molding die for the insert pin or the box pin;
• maintaining the core portion without bending a tape portion around its border with the core portion disposed in the molding cavity;
• and
• injecting molten resin into said molding cavity so that the molten resin flows into molding spaces on front and rear face sides of the core portion and is molded integrally around the core portion.