Positive internal latch lock for an injection mold
AssigneeD-M-E Company, Div. of Fairchild Industries, Inc.
InventorLeo A. Vandenberg
Life of this patent
Estimating the term…
Abstract
A positive internal latch lock for an injection mold having outer, intermediate, and inner plates movable between open and closed mold positions. The latch lock includes a mechanism for securing the outer and intermediate plates at a predetermined spaced distance when the mold is opened at a first parting line between the outer and intermediate plates. Further, the latch lock provides a mechanism for locking the intermediate and inner plates together until the outer and intermediate plates are secured at the predetermined spaced distance. After the outer and intermediate plates are secured, the intermediate and inner plates are allowed to open at a second parting line.
Claims7
A positive internal latch lock for an injection mold having an outer plate, an intermediate plate and an inner plate, the plates being selectively movable between a closed mold position and a open mold position, a first parting line disposed at contacting surfaces of the outer plate and the intermediate plate, and a second parting line disposed at contacting surfaces of the intermediate plate and the inner plate, the latch lock comprising:
- means for securing the outer and intermediate plates at a predetermined spaced distance when the mold is opened at the first parting line, the securing means being disposed internally of the mold;
- and
- means for locking the intermediate and inner plates together until the outer and intermediate plates are secured at the predetermined spaced distance, the locking means being disposed internally of the mold.
Dependencies are inferred from the claim text.