| 摘要 |
<p>A motion transmitting device including eccentric means 5, wheel means 7 having portions 31, e.g. teeth, shaped to engage with teeth 29 on links of a chain and having movement-limiting means including a datum member so that the teeth on the links move into and out of engagement with those on the wheel means can form a speed changing or torque conversion device in which the load is spread over approximately a quarter of the teeth enabling high torques to be obtained. The present invention provides an improved form of movement-limiting means for such a quadrant drive transmission device in which certain practical limitations to the load-carrying capacity are avoided. This is achieved by providing rollers 23 each engaging a first ovoid hole 41 min on the datum member 40 and engaging a second ovoid hole 41 on a meshing element 31, the meshing elements being separately hingedly connected by pins 21, so separating a number of functions which were all performed by the chain link pins in the prior art.</p> |
