US 12,233,671 B2
Tire comprising an improved bead
Patrice Fraysse, Clermont-Ferrand (FR); and Francois Chambriard, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/786,370
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Oct. 9, 2020, PCT No. PCT/FR2020/051790
§ 371(c)(1), (2) Date Jun. 16, 2022,
PCT Pub. No. WO2021/123522, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 1914981 (FR), filed on Dec. 19, 2019.
Prior Publication US 2023/0020083 A1, Jan. 19, 2023
Int. Cl. B60C 15/04 (2006.01); B60C 9/00 (2006.01); B60C 9/04 (2006.01)
CPC B60C 15/04 (2013.01) [B60C 9/0007 (2013.01); B60C 9/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A tire of substantially toric shape about an axis of revolution (A),
the tire comprising a crown, two sidewalls and two beads,
each sidewall connecting each bead to the crown,
the tire comprising at least one continuous filamentary reinforcing element comprising N≥2 circumferential turns about the axis of revolution (A) which are radially superposed on one another,
the at least one continuous filamentary reinforcing element comprising a radially outer free end (E1, E3) and a radially inner free end (E2, E4), and
the at least one continuous filamentary reinforcing element extending radially at least in part in one of the two beads,
wherein at least one of condition I and II is satisfied:
I—the radially outer free end (E1, E3) is, at an azimuth (Az0; Az0′) of the radially outer free end (E1, E3), arranged radially between:
at least one first radially outer portion of the at least one continuous filamentary reinforcing element, the at least one first radially outer portion being arranged radially on the outside of the radially outer free end (E1, E3), and
at least one second radially outer portion of the at least one continuous filamentary reinforcing element, the at least one second radially outer portion being arranged radially on the inside of the radially outer free end (E1, E3), and
II—the radially inner free end (E2, E4) is, at an azimuth (Az0; Az0″) of the radially inner free end (E2, E4), arranged radially between:
at least one first radially inner portion of the at least one continuous filamentary reinforcing element, the at least one first radially inner portion being arranged radially on the outside of the radially inner free end (E2, E4), and
at least one second radially inner portion of the at least one continuous filamentary reinforcing element, the at least one second radially inner portion being arranged radially on the inside of the radially inner free end (E2, E4).