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US 5,160,385 AGranted
Heavy duty pneumatic tires
AssigneeBridgestone Corporation
InventorsAkihito Goto, Yasutaka Enoki
Life of this patent
Estimating the term…
Abstract
In a heavy duty pneumatic tire, a protrusion is disposed in an intersect portion between circumferential groove and transverse groove in a tread of block pattern, whereby stone capturing is prevented. Furthermore, blind sipe is formed in each block of at least center and second block rows, whereby heel and toe wear as well as shoulder wear are prevented.
Claims13
A heavy duty pneumatic tire comprising:
- a tread having a block pattern composed of island portions and groove portions including a circumferential groove and a transverse groove, protrusions for the prevention of stone capturing disposed in the bottoms of the grooves, wherein a protrusion disposed at an intersect portion between at least two grooves among said protrusions is provided with a projected part protruding in an extending direction of each of said circumferential and transverse grooves and disconnected from any island portion of said block pattern.
Dependencies are inferred from the claim text.