Pneumatic radial tire for passenger's vehicle

Abstract

Abstract PURPOSE:To make a pneumatic radial tire lightweight and to enhance the durability thereof, by using carbon fiber cords for a lower belt reinforced layer and aromatic polyamide fiber cords for an upper belt reinforced layer. CONSTITUTION:A radial tire 1 is composed of a tread rubber 1, a side wall 2, a bead wire 3, a carcass layer 4, a bead filler 6 and an inner liner 7. In a belt reinforced layer, a lower belt reinforced layer 5d is made of carbon fiber cords, and an upper belt reinforced layer 5u is made of aromatic polyamide fiber cords. A belt cover 8 made of organic fiber cords is arranged over the entire range of spreaded width of the tread, between the upper belt reinforced layer 5u and the tread rubber 1. Further, the direction of cords of the belt cover 8 is coincident with the peripheral direction EE' of the tire.

Inventors

• 👤 Shuji Takahashi
• 👤 修二 高橋
• 👤 Kazuyuki Kabe
• 👤 和幸 加部
• 👤 Yasuo Morikawa
• 👤 森川　庸雄

Bibliographic Details