Tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorsTakuya Osawa, Teppei Nakamichi, Kensuke Aizawa, Daichi Takatsuki
Life of this patent
Estimating the term…
Abstract
The tire has a tread portion axially divided into two shoulder land regions, two middle land regions and one crown land region by two shoulder circumferential grooves and two crown circumferential grooves. The middle land regions are each provided with a single longitudinal sipe, and first and second middle transverse grooves extending from the adjacent shoulder circumferential groove and crown circumferential groove, and terminated without being connected to the longitudinal sipe. The shoulder land regions are each provided with shoulder transverse grooves extending from tread edges and terminated within the respective shoulder land regions.
Claims16
A tire comprising:
- a tread portion provided with four circumferential grooves extending continuously in the tire circumferential direction to axially divide the tread portion into five land regions,
- the four circumferential grooves including two shoulder circumferential grooves, and two crown circumferential grooves therebetween,
- the five land regions including two shoulder land regions between the two shoulder circumferential grooves and tread edges, two middle land regions between the shoulder circumferential grooves and the crown circumferential grooves, and one crown land region between the two crown circumferential grooves,
- wherein each of the two middle land regions is provided with
- a longitudinal sipe extending continuously in the tire circumferential direction,
- first middle transverse grooves each extending from the adjacent crown circumferential groove and terminated within the middle land region without being connected to the longitudinal sipe therein, and
- second middle transverse grooves extending from the adjacent shoulder circumferential groove and terminated within the middle land region without being connected to the longitudinal sipe therein, and
- each of the two shoulder land regions is provided with shoulder transverse grooves extending from the adjacent tread edge and terminated within the shoulder land region,
- wherein
- the tire has a mounting position on a vehicle specified such that the tread edges are an outboard tread edge to be positioned away from a center of a vehicle body and an inboard tread edge to be positioned closer to the center of the vehicle body, whereby
- said two shoulder land regions are an outboard shoulder land region extending axially inwardly from the outboard tread edge, and an inboard shoulder land region extending axially inwardly from the inboard tread edge, and
- said two middle land regions are an outboard middle land region adjacent to the outboard shoulder land region, and an inboard middle land region adjacent to the inboard shoulder land region,
- wherein
- the width in the tire axial direction of the outboard shoulder land region is greater than the width in the tire axial direction of the outboard middle land region which is greater than the width in the tire axial direction of the crown land region which is greater than the width in the tire axial direction of the inboard middle land region which is greater than the width in the tire axial direction of the inboard shoulder land region.
A tire comprising:
- a tread portion provided with four circumferential grooves extending continuously in the tire circumferential direction to axially divide the tread portion into five land regions,
- the four circumferential grooves including two shoulder circumferential grooves, and two crown circumferential grooves therebetween,
- the five land regions including two shoulder land regions between the two shoulder circumferential grooves and tread edges, two middle land regions between the shoulder circumferential grooves and the crown circumferential grooves, and one crown land region between the two crown circumferential grooves,
- wherein each of the two middle land regions is provided with
- a longitudinal sipe extending continuously in the tire circumferential direction,
- first middle sipes each extending from the adjacent crown circumferential groove and terminated within the middle land region without being connected to the longitudinal sipe therein, and
- second middle sipes extending from the adjacent shoulder circumferential groove and terminated within the middle land region without being connected to the longitudinal sipe therein, and
- each of the two shoulder land regions is provided with shoulder transverse grooves extending from the adjacent tread edge and terminated within the shoulder land region,
- wherein
- the tire has a mounting position on a vehicle specified such that the tread edges are an outboard tread edge to be positioned away from a center of a vehicle body and an inboard tread edge to be positioned closer to the center of the vehicle body, whereby
- said two shoulder land regions are an outboard shoulder land region extending axially inwardly from the outboard tread edge, and an inboard shoulder land region extending axially inwardly from the inboard tread edge, and
- said two middle land regions are an outboard middle land region adjacent to the outboard shoulder land region, and an inboard middle land region adjacent to the inboard shoulder land region,
- wherein
- the width in the tire axial direction of the outboard shoulder land region is greater than the width in the tire axial direction of the outboard middle land region which is greater than the width in the tire axial direction of the crown land region which is greater than the width in the tire axial direction of the inboard middle land region which is greater than the width in the tire axial direction of the inboard shoulder land region.
Dependencies are inferred from the claim text.