作者: Shigeo Watanabe , Kenichi Motomura , Toshiyuki Sogi
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摘要: Abstract of the Disclosure A pneumatic radial tire having an improved bead portion reinforcing construction is disclosed. The comprises a beat band disposed along formed by folding ply carcass body around ring. rein-forcing at least one chipper layer. composed element embedded in rubber and 1 to 50 helically filaments.The has modulus elasticity 0.029 x 104 kg/mm2 1.60 inclined given angle with respect cords so as take whole extensible rigid.