Patent ID: 11912068
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. A tyre comprising a tread portion comprising:
a first tread edge and a second tread edge,
a crown groove extending continuously in a tyre circumferential direction in a crown portion of the tyre,
a first land portion defined between the first tread edge and the crown groove, and
a second land portion extending from the crown groove towards the second tread edge,
wherein
the first land portion is provided with a plurality of first lateral grooves connected to the crown groove and extending from the crown groove in a first direction to the first tread edge,
the second land portion is provided with a plurality of second lateral grooves connected to the crown groove and extending from the crown groove in a second direction to the second tread edge,
the first land portion is divided into a plurality of first blocks by the crown groove and the plurality of first lateral grooves,
the second land portion is divided into a plurality of second blocks by the crown groove and the plurality of second lateral grooves,
the first land portion comprises a plurality of connecting grooves each connecting two first lateral grooves located adjacent to each other in the tyre circumferential direction,
the plurality of connecting grooves includes first pairs of circumferentially adjacent connecting grooves having at least a partial overlap in the tyre circumferential direction, and second pairs of circumferentially adjacent connecting grooves not overlapping with each other in the tyre circumferential direction,
the overlapping pairs and not overlapping pairs of connecting grooves are alternately arranged in the tyre circumferential direction,
the connecting grooves are provided with central sipes extending along a reference line of the connecting grooves,
the first blocks of the first land portion are on a first side of the crown groove and the second blocks of the second land portion are on a second side of the crown groove,
each of the plurality of first lateral grooves is continuous and non-linear, with multiple bend portions between the crown groove and the first tread edge, and
the crown groove is the only crown groove of the tyre.