US 12,447,775 B2
Tyre with bead profile structure for improving lateral stiffness
Moon Cheol Park, Daejeon (KR); and Sun Myung Kim, Daejeon (KR)
Assigned to Hankook Tire & Technology Co., Ltd., Seongnam-si (KR)
Appl. No. 18/844,538
Filed by Hankook Tire & Technology Co., Ltd., Seongnam-si (KR)
PCT Filed Mar. 8, 2023, PCT No. PCT/KR2023/003194
§ 371(c)(1), (2) Date Jan. 7, 2025,
PCT Pub. No. WO2023/172071, PCT Pub. Date Sep. 14, 2023.
Claims priority of application No. 10-2022-0029645 (KR), filed on Mar. 8, 2022.
Prior Publication US 2025/0170858 A1, May 29, 2025
Int. Cl. B60C 15/024 (2006.01)
CPC B60C 15/024 (2013.01) 3 Claims
OG exemplary drawing
 
1. A tyre with bead profile structure, the tyre comprising:
a tread, side walls, and beads,
wherein each of the beads has a bead outermost point that is configured to have an X-coordinate at 8.8-9.7 mm and a Y-coordinate at 19.2-21.7 mm from a European Tyre and Rim Technical Organization (ETRTO) rim standard reference point, the bead outermost point being configured to be in contact with a wheel rim,
wherein each of the beads comprises a lower bead portion at a bottom and an upper bead portion at a top based on the bead outermost point,
wherein an outer curvature radius of the lower bead portion has a range of 30 to 100 mm, and an outer curvature radius of the upper bead portion has a range of 1000 mm to infinity (straight line).