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US 4,162,138 AGranted
Floating insert injection mold
AssigneeWill Ross, Inc.
InventorJohn R. Byrne
Life of this patent
Estimating the term…
Abstract
An injection mold for encapsulating inserts is described having means to apportion mold clamping forces to simultaneously close the parting line of the mold and rigidly clamp an insert within the mold cavity, whereby inserts of various thicknesses can be accommodated.
Claims6
In an injection mold assembly for encapsulating inserts, said assembly having an "A" side plate, a "B" side plate, mold clamping means associated therewith and an ejector housing, the improvement which comprises:
- "B" side clamping pin retaining means having at least one clamping pin retained thereon for clamping said inserts between said "A" side plate and said clamping pin, said "B" side clamping pin retaining means being movable relative to said ejector housing and said "B" plate, and
- apportionment means associated with said ejector housing and said "B" side clamping pin retaining means to direct a predetermined amount of mold clamping force to said "B" side clamping pin retaining means and said "B" plate, said apportionment means being a lever arm pivotably arranged between said ejector housing, said "B" side plate and said "B" side plate clamping pin retaining means.
An injection mold assembly for encapsulating inserts comprising:
- means forming a mold cavity;
- mold clamping means for closing said mold cavity;
- inserting clamping means within said mold cavity to accomodate inserts of varying thickness;
- and
- lever means for allocating a predetermined portion of the mold clamping forces between said means forming a mold cavity and said insert clamping means.
2 more elements
Dependencies are inferred from the claim text.