| 摘要 |
PROBLEM TO BE SOLVED: To provide a spiral cord-rubber crawler for effectively suppressing the generation of shearing torque by the combination with a light bias cord while maintaining the advantage of a spiral cord wound by a simple one piece of cord. SOLUTION: In an endless belt-like spiral cord-rubber roller 1 embedded with single layer bias cords 5 and 6 laminated on a main cord 4, the cord angles of the cords 5 and 6 are constituted so that shearing torque generated in the cord 4 by the peripheral directional tension of the crawler 1, and shearing torque generated in the cords 5 and 6 can be cancelled. Consequently the generation of the shearing torque can be effectively suppressed to improve straight advance travel performance by the skillful combination of the cords 5 and 6 having a low cost, light weight, low winding rigidity to a driving roller, etc., and low travel resistance, while maintaining the advantage of a spiral cord intact wound by one cord manufactured easily.
|
