| 摘要 |
PURPOSE:To evade a so called undercut phenomenon by setting arrangement of angular pitches of cam followers arranged in the circular form or distances from a common revolution axis to the followers into at least two sorts. CONSTITUTION:Arrangements of angular pitches theta1-theta4 of driven rollers 1a-1d are sorted into two kinds different from each other (theta1=theta3not equal to theta2=theta4). To give an equal velocity revolutional motion to an output axis B which is connected to those cam driven rollers 1a-1d, a cam face 2a of a plate cam 2 is formed. This may eliminate an undercut part practically. Any fine loops which relate to the uncertainty of the movement are not contained in the orbits 1A of the roller 1a driven in contact with the undercut part. |
