US 12,240,278 B2
Tires and wheels comprising adjustable stiffening lines, and machines having same
Erich Freytag, Sachsenried (DE)
Assigned to AGCO International GmbH, Neuhausen (CH)
Filed by AGCO International GmbH, Neuhausen (CH)
Filed on Dec. 23, 2021, as Appl. No. 17/645,898.
Claims priority of application No. 20217289 (EP), filed on Dec. 24, 2020.
Prior Publication US 2022/0203767 A1, Jun. 30, 2022
Int. Cl. B60C 17/00 (2006.01); B60C 9/02 (2006.01); B60C 11/03 (2006.01)
CPC B60C 9/02 (2013.01) [B60C 11/03 (2013.01); B60C 2009/0269 (2013.01); B60C 2011/0334 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tire comprising:
a carcass having a bead, a shoulder, and a sidewall, which together partially define a first cavity;
a tread carried by the carcass;
a plurality of stiffening lines spaced apart in a circumferential direction of the tire, each stiffening line attached to an inner surface of the carcass along the sidewall and the tread and defining a second cavity within the carcass and adjacent the first cavity, wherein the second cavity is aligned in an approximately transverse direction relative to a periphery of the tire, and wherein the second cavity is configured to be fluidly connected to a pressurized fluid supply system to adjust the stiffness of the tire in use, and wherein the rigidity of each of the plurality of stiffening lines is dependent on a fluid pressure within the second cavity.