Pneumatic tires with reduced side depth at defined locations
AssigneeBridgestone Corporation
InventorYasufumi Ichiki
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Abstract
A pneumatic tire manufactured with a sector mold including of plural arc-shaped segments each having plural island rows of ribs or blocks in its tread portion and sipes formed in at least one island row. Among these sipes, a depth of a sipe located in the vicinity of a position of a tread surface corresponding to an edge of the arc-shaped segment is made shallower than that of a sipe located at a position other than the above position.
Claims4
A pneumatic tire comprising a plurality of tire tread segments formed by a sector mold having 8-16 arc-shaped segments corresponding to said tire tread segments, each of said tire tread segments comprising a plurality of island rows that are defined in a surface of the tread of the tire, each row being composed of blocks separated from each other in the circumferential direction of the tire at a given internal, at least one of the island rows having sipes of substantially the same shape formed therein and being located at a given interval and having a periodicity in the circumferential direction, wherein a depth of a sipe located near an edge of each of the tire tread segments is shallower than that of all other sipes of similar shape and configuration located at other positions on the tire tread segment.
Dependencies are inferred from the claim text.