Patent ID: 6668886
Filing Date: 2003-12-30
Classification: B60C,Y10S

Abstract:
A vehicle tire comprising a tread portion with a tread face, and sipes disposed in the tread portion,each of the sipes consisting of a radially outer part and radially inner parts, the radially outer part defined as extending radially inwards from the tread face to a certain depth H and extending continuously in the longitudinal direction of the sipe, said radially inner parts each extending radially inwards from the radially inner end of the radially outer part at said certain depth H, said radially inner parts being at least one first inner part and at least two second inner parts, said at least one first inner part each defined as inclined towards one side of the radially outer part (a) from the radially outer end thereof at said certain depth H to the radially inner end thereof or (b) from a position radially inwardly at a small distance from the radially outer end thereof to the radially inner end thereof and said at least two second inner parts each defined as inclined towards the other side of the radially outer part from the radially outer end thereof at said certain depth H to the radially inner end thereof, the first and second inner parts alternating with each other in the longitudinal direction, and gaps between the first and second inner parts in the longitudinal direction being at most 2 mm, wherein said at least one first inner part of one of said sipes overlaps said at least two second inner parts of an adjacent sipe when viewing a cross-section of the tread portion.