| 摘要 |
PURPOSE: To obtain a belt transmission device which is always tensed uniformly even if a tolerance inevitable in mass-production is existent by providing a means for installing an adjusting tool for adjusting the angle of a shaft rod through an oscillating bearing arranged with eccentricity. CONSTITUTION: The angle of a shaft rod 1 can be adjusted through an oscillating bearing 10 arranged with eccentricity, and the shaft rod is provided with a hexagonal hole 12 for installing an adjusting tool 13. In such a structure, by the action of doubly arranged eccentric rings 1, 2, a tension roller 3 is pressed to a driving belt 16. A first eccentric ring 1 acting as the shaft rod 1 for fixing is used for independent adjustment during assembling to support the tension roller 3. The shaft rod 1 has a hole for a bolt provided with eccentricity, and the shaft rod 1 can be fixed to an engine block by the bolt. The shaft rod 1 can be turned through the adjusting tool 13 so as to be used for compensating for every tolerance of a belt transmission device. |
