US 7,448,423 B2
	Tire for heavy machinery including at least three half-plies on each side of crown reinforcement
Marie-Claude Palgen, Lanore (France)
Assigned to Michelin Recherche Et Technique S.A., Granges-Paccot (Switzerland)
Filed on Apr. 08, 2005, as Appl. No. 11/101,495.
Application 11/101495 is a continuation of application No. PCT/EP03/11159, filed on Oct. 09, 2003.
Claims priority of application No. 02 12625 (FR), filed on Oct. 10, 2002.
Prior Publication US 2005/0173042 A1, Aug. 11, 2005
Int. Cl. B60C 9/20 (2006.01); B60C 9/18 (2006.01)

U.S. Cl. 152—527  [152/526; 152/534; 152/535]

12 Claims

1. Tire for heavy machinery, comprising a radial carcass reinforcement surmounted radially by a working crown reinforcement, the working crown reinforcement comprising at least two axially continuous working crown plies formed by non-extensible metallic reinforcement elements crossed from one ply to the next, forming with the circumferential direction respective first angles of between 10° and 35°, wherein the working crown reinforcement is supplemented on each side of the circumferential mid-plane by at least three half-plies formed by non-extensible metallic reinforcement elements forming with the circumferential direction respective second angles of between 10° and 40°, wherein the half-ply extending axially furthest towards the outside is in contact with at least two other working crown half-plies and wherein each of the three half-plies radially cover the axially external ends of at least two continuous working crown plies.