Multiple insert tire mold and assembly method
AssigneeThe Goodyear Tire & Rubber Company
InventorsJoseph William Metz, Lloyd Glenn Whiteman, Samuel Eubanks Reckley, William John Dormer
Life of this patent
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Abstract
A multiple insert tire mold (10) has inserts (26) with radially extending ribs (28) for sliding engagement in a slot (22) in the outer ring back (12) of the mold and abutting surfaces (48) for venting exhaust gases from the mold (10).
Claims11
A tire mold comprising:
- a cylindrical tread forming outer ring, a plurality of tread forming insert members supported by said outer ring characterized by:
- said outer ring having a radially inner surface for engagement with a radially outer surface of each of said insert members,
- a circumferentially extending slot in said radially inner surface of said outer ring,
- said outer ring having an opening extending in axial direction in communication with said slot for access to said slot by said insert members in an axial direction,
- each of said insert members having a radially extending rib for sliding engagement in said slot in a circumferential direction after movement through said opening,
- said slot having a circumferentially extending flange at a position spaced from said inner surface of said outer ring;
- and,
- said rib having a corresponding circumferentially extending lip at a position spaced from said radially outer surface for retaining each of said insert members in said outer ring while permitting circumferential sliding of said insert members in said slot for assembly and disassembly of said tread forming outer ring.
A method of assembling a cylindrical tread forming outer ring for a tire mold wherein said outer ring has a radially inner surface and a circumferentially extending slot in said radially inner surface with an axially extending opening in an end surface of said outer ring to said slot characterized by the steps of sliding rib members of a plurality of tread forming insert members axially into said slot at said opening and then sliding said insert members circumferentially in said slot.
An insert member for mounting in an outer ring of a mold to form part of a cylindrical tread forming ring of a tire mold having a tread forming surface characterized by a radially outer surface having a circumferentially extending rib for sliding engagement in a slot in said outer ring, said rib having a circumferentially extending lip at a position spaced from said outer surface for retaining said insert member in said slot.
Dependencies are inferred from the claim text.