US 11,590,804 B2Granted

Pneumatic tire

AssigneeThe Yokohama Rubber Co., Ltd.

InventorsMasataka Kubota, Noboru Kuwahara

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Abstract

A pneumatic tire includes circumferential main grooves extending in the tire circumferential direction and a land portion defined by the circumferential main grooves. The land portion includes a through lug groove that passes through the land portion in the tire lateral direction and includes first and second chamfered portions formed on left and right edge portions of the through lug groove. The first chamfered portion opens at one end to one of the edge portions of the land portion and terminates at the other end at a central portion in the groove length direction of the through lug groove. The second chamfered portion opens at one end portion to one of the edge portions of the land portion and terminates at the other end portion at a central portion in the groove length direction of the through lug groove.

Claims15

Dependent claims

A pneumatic tire, comprising:

a circumferential main groove extending in a tire circumferential direction, the circumferential main groove being a groove on which a wear indicator must be provided as specified by JATMA (the Japan Automobile Tyre Manufacturers Association, Inc.);
and
a land portion defined and formed by the circumferential main groove;
the land portion comprising
a continuous through lug groove extending through the land portion in a tire lateral direction, and
a first chamfered portion and a second chamfered portion formed on left and right edge portions of the through lug groove;
the first chamfered portion opening at one end portion to an edge portion of the land portion and terminating at another end portion at a central portion in a groove length direction of the through lug groove;
and
the second chamfered portion opening at one end portion to another edge portion of the land portion and terminating at another end portion at the central portion in the groove length direction of the through lug groove.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/485,422Filed 13 Feb 2018
Priority: JP JP2017-02463914 Feb 2017
Published: US 2020/0001654 A12 Jan 2020
Granted: 28 Feb 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

B60C 11/0304
Tread patterns: asymmetric patterns
B60C 11/1392
Three dimensional block surfaces departing from the enveloping tread contour: with chamfered block edges
B60C 11/03
Tyre tread bands; Tread patterns; Anti-skid inserts: tread patterns
B60C 11/0302
Tread patterns: directional pattern, i.e. with main rolling direction