| 摘要 |
PURPOSE:To rotate a motor smoothly and prevent the decline in its output by fixing separate coupling members to a motor output shaft and a rotary shaft, loosely fitting projections provided on one of the both coupling members into recesses provided on the other, and absorbing any shift between said output shaft and the rotary shaft. CONSTITUTION:Coupling members 13, 12 are fixed to the output shaft 4a of a motor 4 and a rotary shaft 5 respectively. Recesses 12a, 12a are provided on the both sides of one end of the coupling member 12, and projections 13a, 13a, which are narrower than the width of the recesses 12a, 12a, are provided on the outer surface of the other coupling member 13. Since these projections are loosely fitted into the recesses 12a, 12a, with some gaps, the vibration or shift of the output shaft 4a of the motor 4 can be absorbed by these gaps between the projections 13a, 13a and the recesses 12a, 12a, thereby securely transmitting the rotation of the motor 4 to a feed screw 5, without causing decline in output. |
