BigPatents India

The invention concerns a tyre (P), comprising a radial carcass reinforcement (1) whereon is mounted with a crown reinforcement (3) consisting of at least one working reinforcement formed with two layers (31, 32) of inextensible metal reinforcing members, mutually parallel in each layer and cross-laid from one layer (31) to the next (32) forming with the circumferential direction DQJOHV.DQG.UDQJLQJEHWZHHQº and 45º, said working layers having axial widths L1 and L2 and at least one layer, called protective layer, with axial width L3 such that L3 < L2 < L1. The invention is characterised in that on either side of the equatorial plane XX', in the axial extension of the protective layer (33) is provided an additional layer (34) of inextensible metal reinforcing members having a similar orientation as that of the reinforcing members of the least wide working layer (32) and forming with the FLUFXPIHUHQWLDOGLUHFWLRQDQDQJOH.JUHDWHULQDEVROXWHYDOXHWKDQDQJOH.RIWKHPHPEHUVRIVDLGUDGLDOO\H[WHUQDOZRUNLQJOD\HU(32) by at least 5º. Drawing: 01 Sheet. Total Pages: 10. Fig. 1