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US 11,766,896 B2Granted
Pneumatic tyre
AssigneeSumitomo Rubber Industries, Ltd.
InventorHirokazu Takano
Life of this patent
Estimating the term…
Abstract
A pneumatic tyre includes a tread portion including a shoulder land portion having a tread edge. The shoulder land portion is provided with shoulder lateral grooves extending inwardly in a tyre axial direction from the tread edge so as to define shoulder block elements therebetween, and at least one protrusion protruding from an outer surface in the tyre axial direction of the respective shoulder land portion. The protrusion includes first portions provided on the respective shoulder block elements and extending in a tyre radial direction, and a second portion located inwardly in the tyre radial direction of one of the shoulder lateral grooves and extending in a tyre circumferential direction to connect inner portions of at least two first portions.
Claims16
A pneumatic tyre comprising:
- a tread portion comprising a shoulder land portion having a tread edge, the shoulder land portion being provided with shoulder lateral grooves extending inwardly in a tyre axial direction from the tread edge so as to define shoulder block elements therebetween, and plural protrusions protruding from an outer surface in the tyre axial direction of the respective shoulder land portion, wherein
- the plural protrusions are circumferentially spaced and disconnected from each other and comprise:
- first portions provided on the respective shoulder block elements and extending in a tyre radial direction, and
- a second portion located inwardly in the tyre radial direction of one of the shoulder lateral grooves, extends in a tyre circumferential direction to connect radially inner ends of at least two first portions, and
- widths in the tyre circumferential direction of the first portions are greater than groove widths of the shoulder lateral grooves at the tread edge,
- the first portions comprise inner edges extending in the tyre radial direction located inwardly in a circumferential direction of the plural protrusions, the inner edges have a radial length in a range of from 0.5 to 5.0 times a radial length of the second portion, each first portion comprises circumferentially spaced first and second radial surfaces each extending in the tyre radial direction,
- in a front view of the outer surface of the shoulder block element, the first and second radial surfaces are offset in the tyre circumferential direction from the shoulder lateral grooves adjacent to the shoulder block element, and
- the shoulder lateral grooves comprise a first shoulder lateral groove inside which the second portion, in the tyre radial direction, is positioned, and a second shoulder lateral groove inside which no second portion, in the tyre radial direction, is positioned.
5 more elements
A pneumatic tyre comprising:
- a tread portion comprising a shoulder land portion having a tread edge, the shoulder land portion being provided with shoulder lateral grooves extending inwardly in a tyre axial direction from the tread edge so as to define shoulder block elements therebetween, and plural protrusions protruding from an outer surface in the tyre axial direction of the respective shoulder land portion, wherein
- the plural protrusions are circumferentially spaced and disconnected from each other and comprise:
- first portions provided on the respective shoulder block elements and extending in a tyre radial direction, and
- a second portion located inwardly in the tyre radial direction of one of the shoulder lateral grooves, extends in a tyre circumferential direction to connect radially inner ends of at least two first portions,
- each first portion comprises circumferentially spaced first and second radial surfaces each extending in the tyre radial direction, and in a front view of the outer surface of each shoulder land portion, the first and second radial surfaces are offset in the tyre circumferential direction from the shoulder lateral grooves adjacent to the shoulder land portion, and
- the shoulder lateral grooves comprise a first shoulder lateral groove inside which the second portion, in the tyre radial direction, is positioned, and a second shoulder lateral groove inside which no second portion, in the tyre radial direction, is positioned.
3 more elements
A pneumatic tyre comprising:
- a tread portion comprising a shoulder land portion having a tread edge, the shoulder land portion being provided with shoulder lateral grooves extending inwardly in a tyre axial direction from the tread edge so as to define shoulder block elements therebetween, and plural protrusions protruding from an outer surface in the tyre axial direction of the respective shoulder land portion, wherein
- the plural protrusions are circumferentially spaced and disconnected from each other and comprise:
- first portions provided on the respective shoulder block elements and extending in a tyre radial direction, and
- a second portion located inwardly in the tyre radial direction of one of the shoulder lateral grooves, extends in a tyre circumferential direction to connect radially inner ends of at least two first portions,
- each first portion comprises a first circumferential surface located outermost in the tyre radial direction, and in a front view of the outer surface of each shoulder land portion, the first circumferential surface is offset radially inwardly from the tread edge, and
- the shoulder lateral grooves comprise a first shoulder lateral groove inside which the second portion, in the tyre radial direction, is positioned, and a second shoulder lateral groove inside which no second portion, in the tyre radial direction, is positioned.
3 more elements
Dependencies are inferred from the claim text.