| 摘要 |
It is an object of the present invention to provide a chain transmission device including rolling-type chain guides capable of guiding a chain quietly. In the chain transmission deice including the chain guides (6, 7) in which a plurality of spaced apart rollers (8) for guiding the chain are arranged, distance L (m) between the contact points of a trained portion of the chain (5) is set to satisfy the following inequality (1): L < 1 2 É MAN T Á , where É MAX is the maximum excitation frequency (Hz) from a crank shaft (1), Á is the mass of the chain (5) per unit length (kg/m), and T is the time-average tension of the chain (5) (N). |
