Sughrue, Rothwell, Mion, Zinn and Macpeak
Pneumatic radial tire for heavy load vehicles
 A pneumatic radial tire for heavy load vehicles comprises a carcass and a belt for reinforcement of the carcass, said belt including tension members composed of at least two rubberized metal cords crossing with each other at a cord angle of not more than 25.degree. with respect to equatorial plane of tire, in which said metal cords is coated with a rubber having a modulus of elasticity of 40-80 Kg/cm.sup.2, a distance between the cords in each tension member is widened to 0.2-0.75 d based on a diameter d of the cord, and an interlaminar cord distance D between the tension members is uniformly shortened to 0.2-0.4 d at a central region extending within 50-80% of a superposed width of the tension members. 
Bridgestone Tire Company Limited
Y Y Y B
Y10T Y10T Y10T B60C
additional additional additional inventional
Toshiyuki Hidenori Muneyoshi Shigeo
Sogi Takahashi Maeda Watanabe