US 12,459,305 B2
Tire
Toru Osawa, Tokyo (JP)
Assigned to BRIDGESTONE CORPORATION, Tokyo (JP)
Appl. No. 18/714,219
Filed by BRIDGESTONE CORPORATION, Tokyo (JP)
PCT Filed Sep. 20, 2022, PCT No. PCT/JP2022/035033
§ 371(c)(1), (2) Date May 29, 2024,
PCT Pub. No. WO2023/112416, PCT Pub. Date Jun. 22, 2023.
Claims priority of application No. 2021-205597 (JP), filed on Dec. 17, 2021.
Prior Publication US 2025/0178380 A1, Jun. 5, 2025
Int. Cl. B60C 11/24 (2006.01); B60C 13/02 (2006.01)
CPC B60C 11/24 (2013.01) [B60C 13/02 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A tire having a smooth pattern with substantially no grooves on a tread surface of a tread portion including tread rubber, wherein
on a side portion outer surface of the tire, a plurality of ridges protruding from the side portion outer surface and extending in the tire circumferential direction, for checking a remaining tread gauge until the tread rubber reaches its wear limit, are provided spaced apart from each other in the tire radial direction,
the tire is further provided with a slit extending from the tread surface to the side portion outer surface to be used to check the remaining tread gauge by inserting a depth gauge from the tread surface and measuring the depth,
walls defining the slit are substantially free of protrusions and recesses,
a numerical value corresponding to the remaining tread gauge is indicated at a position corresponding to each of the plurality of ridges on the side portion outer surface, and
in a tire circumferential direction, the numerical value is positioned between the corresponding ridge and the slit.