Heavy duty pneumatic radial tires with bead reinforcing cord layer having multiple inclination angles

Invention Grant

US06354351B1 Heavy duty pneumatic radial tires with bead reinforcing cord layer having multiple inclination angles 有权

Title translation: 具有多个倾斜角度的胎圈加强帘线层的重型充气子午线轮胎

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Patent Title: Heavy duty pneumatic radial tires with bead reinforcing cord layer having multiple inclination angles
Patent Title (中): 具有多个倾斜角度的胎圈加强帘线层的重型充气子午线轮胎
Application No.: US09404545

Application Date: 1999-09-24
Publication No.: US06354351B1

Publication Date: 2002-03-12
Inventor: Toshiya Miyazono
Applicant: Toshiya Miyazono
Priority: JP9-154894 19970612; JP9-171632 19970627
Main IPC: B60C1500
IPC: B60C1500

Heavy duty pneumatic radial tires with bead reinforcing cord layer having multiple inclination angles

Abstract:

A heavy duty pneumatic radial tire has a light weight of a bead portion and an excellent bead portion durability and is provided with a bead portion reinforcing layer covering an outer surface of a carcass ply around a bead core, in which the bead portion reinforcing layer is comprised of a single rubberized steel cord layer or of two or three independent rubberized steel cord layer segments. In this case, the steel cords arranged in the bead portion reinforcing layer have an inclination angle of a given range with respect to a circumferential line of the tire.

Abstract(Chinese):

重载充气子午线轮胎具有胎圈部的重量轻，胎圈部耐久性优异，并且在胎圈芯周围设置有覆盖胎圈帘布层的外表面的胎圈部加强层，胎圈部加强层为由单个橡胶钢帘线层或两个或三个独立的橡胶钢帘线层段组成。在这种情况下，布置在胎圈部加强层中的钢丝帘线相对于轮胎的周向线具有给定范围的倾斜角度。

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