A mold assembly wherein a cavity for molding is defined by primary mold cavity and primary mold core elements and a supplemental core element, the primary mold cavity and primary mold core elements are carried by first and second mating mold components and the supplemental core element is carried by a slide moveable transversely relative to the direction of motion of the mating mold components. The slide is supported by the first mating mold component and has an opening therein for engaging an actuating pin supported by the second mating mold component at an angle oblique to the parting line face of the second mating mold component. The actuating pin is removably retained in a support opening in the parting line face of the second mating mold component by means accessible from the second mating mold component parting line face.
1. A mold assembly comprising:
a) first and second mating mold components, one of the first and second mating mold components comprising a primary core element and the other of the first and second mating mold components comprising a primary cavity element, the first and second mating components meeting on parting line faces thereof;
b) a slide member for carrying a supplemental core element, the slide member supported by and moveable relative to a first mating mold component, the slide member having an opening therein;
c) a headless actuating pin for engaging the opening in the slide member to effect movement thereof with movement of the first and second mating mold components relative to one another, the actuating pin being removably retained in a support opening in the parting line face of the second mating mold component, the actuating pin having a notch in the periphery thereof; and
d) a key for engaging the notch removably attached to the second mold component by means accessible from the second mold component parting line face, the actuating pin being retained in the support opening by engagement of the notch and key at an angle oblique to the second mating mold component parting line face, whereby, with removal of the key, the actuating pin is removable from the support opening in the second mold component from the parting line face thereof.
2. The mold assembly of claim 1 wherein, with the mating mold components meeting, the key is received within a relief provided in at least one of the parting line face of the second mating mold component and the facing surface of the slide.
3. The mold assembly of claim 2 wherein the notch is aligned with the line of intersection of the parting line face with the longitudinal axis of the actuating pin as the actuating pin is oriented when retained in the second mating mold component.
4. The mold assembly of claim 2 wherein the notch is aligned with a perpendicular to the longitudinal axis of the actuating pin and the relief is made to accommodate inclination of the key to the parting line face of the mating mold component.