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US 2015/0343852 A1Published application
Pneumatic Tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorAyako Joza
Life of this patent
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Abstract
A pneumatic tire having grooves on a tread surface, wherein recessed sections are provided on groove wall surfaces of the grooves, and a photoluminescent material is adhered to the inside of the recessed sections.
Claims20
A pneumatic tire with a groove in a tread surface, comprising:
- a recessed section provided in a groove wall surface of the groove;
- and
- a photoluminescent material adhered to an inside of the recessed section.
The pneumatic tire according to 1, wherein
- a ratio of a major axis H1 of the photoluminescent material to a width H of a bottom surface of the recessed section is such that 0.3≦H1/H≦0.95.
The pneumatic tire according to 1, wherein
- a depth D of the recessed section is such that 0.2 mm≦D≦1.5 mm.
The pneumatic tire according to 1, wherein
- a small projection projecting within the recessed section is provided on an inner side surface, closer to an opening side than to a bottom surface of the recessed section.
Dependencies are inferred from the claim text.