Tire mold vent
First Claim
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1. A mold vent assembly, comprising:
- a cylindrical vent housing including first and second ends, a cylindrical outer surface and a length from the first end to the second end, the housing having a slot defined in the outer surface along the length, the slot at least partially defining a passage through the housing; and
an elastomeric insert received in the slot, the insert including a head extending laterally adjacent the first end of the housing, the head being movable between a first position permitting air flow into the passage at the first end of the housing and a second position at least partially blocking the passage at the first end of the housing.
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Abstract
A tire mold vent assembly includes a cylindrical vent housing having a slot defined therein along the length of the housing to provide a circumferential flexibility to the vent housing. An elastomeric insert is received in the slot and includes a head extending laterally from one end of the housing. The head is movable between a first position permitting air flow into the passage through the housing, and a second position which blocks the passage to prevent sprue formation.
19 Citations
24 Claims
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1. A mold vent assembly, comprising:
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a cylindrical vent housing including first and second ends, a cylindrical outer surface and a length from the first end to the second end, the housing having a slot defined in the outer surface along the length, the slot at least partially defining a passage through the housing; and an elastomeric insert received in the slot, the insert including a head extending laterally adjacent the first end of the housing, the head being movable between a first position permitting air flow into the passage at the first end of the housing and a second position at least partially blocking the passage at the first end of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A tire mold, comprising:
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a mold body including an inner mold cavity surface and an outer mold surface, the mold body including a vent hole defined therein communicating the inner mold cavity surface and the outer mold surface, the vent hole having a hole diameter; a cylindrical vent housing received in the vent hole, the housing having a first end and a second end, the housing including a cylindrical outer housing surface having a slot defined therein along a length of the housing, the housing having an unrestricted housing outside diameter greater than the hole diameter, the housing being resiliently deformed across the slot when the housing is received in the vent hole; and an insert received in the vent housing, the insert movable between a first position permitting air to vent through the vent hole, and a second position inhibiting sprue formation through the vent hole. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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Specification