| 摘要 |
PURPOSE:To restrain the occurrence of noise by constituting the length of the straight line part of a chain between the input side pulley and the output side pulley at a specific reduction ratio of a continuously variable transmission so as to be integer times of the pitch length of the chain. CONSTITUTION:In a speed reduction region, between the length L2 of the straight line part of a pulley and the pitch P of the belt 16, such a relationship as L2 = nXP is provided. Thereby, the vibrational phases added to the belt 16 by the input side pulley 10-1 and the output side pulley 10-2 can be equalized. Thus, the variation in the tension added to the belt 16 can be restrained to reduce the working noise.
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