| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roller type transmission device which can be miniaturized to be advantageous in cost and achieves precise and smooth speed reduction movement. <P>SOLUTION: A group 11 of transmission pin rollers is arranged by press fitting circularly into an inner circumferential wall 10a of a stationary ring 10 and a group 18 of controllable pin rollers is arranged by press fitting circularly into an inner circumferential wall 13c of a rotational ring 13. To pin rollers 11a, 18a, high-precision cylindrical rollers and needle rollers which are used for roller bearing or the like can be applied. Hence the group 11 of transmission pin rollers and the group 18 of controllable pin rollers work as inner teeth to make a backlash phenomenon minimum, render the pitch precision between teeth of pin rollers 11a, 18a high, maintain a high-precision and even tooth profile, equalize a surface roughness and improve engagement precision at a mating contact part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
