Patent ID: 11878554
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 17:
18. A tyre comprising:
a tread portion being provided with a crown land portion, a middle land portion, a shoulder land portion, a crown circumferential groove extending between the crown land portion and the middle land portion, and a shoulder circumferential groove extending between the middle land portion and the shoulder land portion, wherein
the crown land portion is provided with two or more semi-opened crown sipes,
the crown sipes each have two opposite sipe-edge portions provided with chamfer portions,
the middle land portion is provided with two or more semi-opened first middle sipes communicated with the crown circumferential groove, and two or more semi-opened second middle sipes communicated with the shoulder circumferential groove, and
the first middle sipes each have two opposite sipe-edge portions provided with chamfer portions,
the first middle sipes are arranged so as not to overlap the crown sipes in a tyre circumferential direction,
the second middle sipes each have two opposite sipe-edge portions where no chamfer portion is provided,
the second middle sipes are arranged so as to overlap the crown sipes in the tyre circumferential direction,
the first middle sipes and the second middle sipes are inclined with respect to a tyre axial direction, and
the crown sipes, with respect to the tyre axial direction, are inclined in an opposite direction to the first middle sipes and the second middle sipes.