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US 10,850,569 B2Granted
Pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorNaoki Kageyama
Life of this patent
Estimating the term…
Abstract
A shoulder lateral groove 5 comprises an inner lateral groove portion 7 intersecting a shoulder main groove 3S, an outer lateral groove portion 8 intersecting a tread edge (Te), and a sipe portion 9 connecting between the inner lateral groove portion 7 and the outer lateral groove portion 8. The outer lateral groove portion 8 has a bent portion 10 and extends so as to connect between the tread edge (Te) and the sipe portion 9.
Claims14
A pneumatic tire comprising:
- a tread portion divided into a plurality of land regions including a shoulder land region arranged on a side of a tread edge by a plurality of main grooves including a shoulder main groove extending in a tire circumferential direction and arranged on the side of the tread edge, wherein
- the shoulder land region is divided into a plurality of shoulder blocks by a plurality of shoulder lateral grooves crossing the shoulder land region,
- each of the shoulder lateral grooves comprises an inner lateral groove portion intersecting the shoulder main groove, an outer lateral groove portion intersecting the tread edge, and a sipe portion connecting between the inner lateral groove portion and the outer lateral groove portion,
- the outer lateral groove portion has a bent portion and extends so as to connect between the tread edge and the sipe portion,
- the land regions include a middle land region arranged adjacently to the shoulder land region on an inner side in a tire axial direction,
- the middle land region is divided into a plurality of middle blocks by a plurality of middle lateral grooves crossing the middle land region,
- an opening of each of the shoulder lateral grooves at an outer edge in the tire axial direction of the shoulder main groove at least partly overlaps with a virtual region, or a separation distance in the tire circumferential direction between the opening of the shoulder lateral groove and the virtual region is not more than 5.0 mm,
- the virtual region is an extension of a groove opening of the middle lateral groove adjacent to the closest shoulder lateral groove that intersects with the outer edge in the tire axial direction of the shoulder main groove,
- the outer lateral groove portion has a second bent portion, and
- the outer lateral groove portion has a main portion extending axially inwardly from an outer end portion intersecting the tread edge, a first sub portion is connected with the main portion via the bent portion, and a second sub portion is connected with the first sub portion via the second bent portion, wherein
- the second sub portion extends parallel to the main portion.
8 more elements
A pneumatic tire comprising:
- a tread portion divided into a plurality of land regions including a shoulder land region arranged on a side of a tread edge by a plurality of main grooves including a shoulder main groove extending in a tire circumferential direction and arranged on the side of the tread edge, wherein
- the shoulder land region is divided into a plurality of shoulder blocks by a plurality of shoulder lateral grooves crossing the shoulder land region,
- each of the shoulder lateral grooves comprises an inner lateral groove portion intersecting the shoulder main groove, an outer lateral groove portion intersecting the tread edge, and a sipe portion connecting between the inner lateral groove portion and the outer lateral groove portion,
- the outer lateral groove portion has a bent portion and extends so as to connect between the tread edge and the sipe portion,
- the land regions include a middle land region arranged adjacently to the shoulder land region on an inner side in a tire axial direction,
- the middle land region is divided into a plurality of middle blocks by a plurality of middle lateral grooves crossing the middle land region,
- an opening of each of the shoulder lateral grooves at an outer edge in the tire axial direction of the shoulder main groove at least partly overlaps with a virtual region, or a separation distance in the tire circumferential direction between the opening of the shoulder lateral groove and the virtual region is not more than 5.0 mm, and
- the virtual region is an extension of a groove opening of the middle lateral groove adjacent to the closest shoulder lateral groove that intersects with the outer edge in the tire axial direction of the shoulder main groove,
- the outer lateral groove portion has a second bent portion, and
- the outer lateral groove portion has a main portion extending axially inwardly from an outer end portion intersecting the tread edge, a first sub portion is connected with the main portion via the bent portion, and a second sub portion is connected with the first sub portion via the second bent portion, wherein
- the pneumatic tire is mounted to a vehicle having a cargo bed, and
- a distance in the tire axial direction between the position of a ground contacting edge when the cargo bed is empty and an inner end portion of the outer lateral groove portion is not more than 7 mm.
9 more elements
Dependencies are inferred from the claim text.