Abstract: A pneumatic tire includes a pair of circumferential main grooves, a plurality of center lug grooves, and center blocks. The pair of circumferential main grooves are disposed on both sides of a tire equatorial plane in a tire lateral direction. The tire equatorial plane is interposed between the pair of circumferential main grooves. The pair of circumferential main grooves extend in a tire circumferential direction and oscillate in the tire lateral direction. The plurality of center lug grooves have both ends connected to the pair of circumferential main grooves. The center blocks are defined by the center lug grooves and the pair of circumferential main grooves. The center lug grooves have bent portions at two or more positions. The center blocks include center narrow grooves having both ends connected to the pair of circumferential main grooves. The center narrow groove has bent portions at two or more positions.
Abstract: A tyre has a tread portion. The tread portion has a land region divided by a first edge and a second edge extending in a tyre circumferential direction. The land region is provided with a plurality of sipes each extending between the first edge and the second edge. The plurality of the sipes includes inclined sipes and bent sipes. Each of the bent sipes includes first inclined elements inclined in the first direction with respect to the tyre axial direction and a second inclined element inclined in a direction opposite to the first inclined elements with respect to the tyre axial direction. Each of the inclined sipes is configured to have a depth larger at a center portion thereof than at both end portions thereof. Each of the bent sipes is configured to have a depth smaller at a center portion thereof than at both end portions thereof.
Abstract: A pneumatic tire comprises a first main groove disposed in a tread surface on either side of a tire equatorial plane, the first main grooves extending in a tire circumferential direction; a second main groove disposed outward of each of the first main grooves in a tire width direction, the second main groove extending in the tire circumferential direction; five land portions defined by the four main grooves, the five land portions including a center land portion located between the first main grooves, two intermediate land portions located between the first main grooves and the second main grooves, and two shoulder land portions located outward of the second main grooves in the tire width direction; and sub grooves and sipes disposed in each of the land portions.
Inventors:
Christopher Byron Davis, Andrew John Norwood, Zachary William Juergens, Cyril Jean-Louis Bomble, Brian Rene Bourel, Christopher John Lane, Mark Anthony Canankamp, Mihir Singh Meetarbhan, Sebastien Penin, Ganesh Viswanathan, Nicholas William Fazio
Inventors:
Suraj Sadananda, Philippe Jean-Marie Coton, Patrick Francois Willems, Nicolas Venet, Jerome Marcel Germain Delu, Armand Rene Gabriel Leconte