초록 ▼

A method of molding a ferrule of plastic resin provided with at least one hole having a small diameter and positioned at a predetermined position by a mold having a pair of associated molding ferrule halves, including the steps of arranging a molding core having at least one pin for defining the hol

A method of molding a ferrule of plastic resin provided with at least one hole having a small diameter and positioned at a predetermined position by a mold having a pair of associated molding ferrule halves, including the steps of arranging a molding core having at least one pin for defining the hole in a cavity defined by the pair of molding ferrule halves, holding the molding ferrule halves by a clamping force, the molding ferrule halves having inner members for positioning the pin and being free from the clamping force, supplying plastic resin into said cavity and pressing the inner members of the molding ferrule halves by a force separate from the mold clamping force.

대표청구항 ▼

A method of molding a ferrule of plastic resin wherein the ferrule is provided with at least one hole having a small diameter and positioned at a predetermined position by a mold having a pair of mold halves and inner members, at least one of said inner members being a positioning member, comprising

A method of molding a ferrule of plastic resin wherein the ferrule is provided with at least one hole having a small diameter and positioned at a predetermined position by a mold having a pair of mold halves and inner members, at least one of said inner members being a positioning member, comprising the steps of: arranging said inner members in a first cavity defined by said pair of mold halves; arranging at least one molding member in a second cavity defined by said inner members whereby said molding member is held in a predetermined position by said positioning member, said molding member forming said hole having the small diameter after completion of molding; holding said mold halves by a clamping force during molding, said positioning member being free from subjection to the clamping force; pressing said positioning member by a force separate from and smaller than said clamping force; and supplying a plastic resin into said second cavity.