Pneumatic tire and vulcanization mold for the same
AssigneeThe Yokohama Rubber Co., Ltd.
InventorHiroshi TOKIZAKI
Life of this patent
Estimating the term…
Abstract
A pneumatic tire including a decorative portion having at least one ridge group that extends band-like in the tire circumferential direction on the outer surface of the side wall. Each of the ridge groups is formed from a bundle of ridges. An entirety of each of the ridge groups is formed into a wave-like shape that extends in the tire circumferential direction, and each of the ridge groups is arranged so as to mutually cross at a plurality of locations in the tire circumferential direction. Therefore, the decorative portion is noticeable, and the decoratability of the tire can be enhanced.
Claims20
A pneumatic tire comprising:
- a tread portion extending in a tire circumferential direction and forming a ring shape;
- a pair of sidewall portions disposed on both sides of the tread portion, respectively, with regard to a tire width direction, one of the sidewall portions having an outer surface including a decorative portion extending in the tire circumferential direction, the decorative portion including a first ridge group;
- the first ridge group including a first bundle of ridges arranged in a plurality of respective first sections and a plurality of respective second sections, such that each of the respective first sections extends from a respective first location at a respective first radial distance of the pneumatic tire to a respective second location at a respective second radial distance of the pneumatic tire greater than the respective first radial distance, and each of the respective second sections extends from a respective one of the second locations to a respective one of the first locations, with all of the first and second locations being separated in the tire circumferential direction such that the first ridge group extends in a first wave pattern along the tire circumferential direction.
A pneumatic tire vulcanization mold, comprising:
- a tread molding portion configured to mold a tread portion extending in a tire circumferential direction of the pneumatic tire and forming a ring shape;
- a pair of sidewall molding portions for molding a pair of sidewall portions disposed on both sides of the tread portion, respectively, with regard to a tire width direction, at least one of the sidewall molding portions having a decorative molding portions for molding a decorative portion in an outer surface of one of the sidewall portions, the decorative portion extending in the tire circumferential direction and including a first ridge group, the first ridge group including a first bundle of ridges arranged in a plurality of respective first sections and a plurality of respective second sections, such that each of the respective first sections extends from a respective first location at a respective first radial distance of the pneumatic tire to a respective second location at a respective second radial distance of the pneumatic tire greater than the respective first radial distance, and each of the respective second sections extends from a respective one of the second locations to a respective one of the first locations, with all of the first and second locations being separated in the tire circumferential direction such that the first ridge group extends in a first wave pattern along the tire circumferential direction.
Dependencies are inferred from the claim text.