| 摘要 |
<p>PURPOSE:To convert rotating motion into straight motion with a simple constitution, by specifying the gear ratio of a driving gear train. CONSTITUTION:A distance between the center of the 1st gear 26 of the 1st arm 32 and the center of the 4th gear 36 and another distance between the center of the 4th gear 36 of the 2nd arm 37 and the center of the pin 38 are made equal, the gear ratio of the gears 30, 35, 36 is selected as 2:1:1, allowing to reciprocate for the pin 38 on a straight line through the one revolution of the gear 26. A gear 21 capable of meshing with a gear 24 driven with the motor is meshed with the gear 26. Further, a gear 25 is provided and the gear 21 is provided with a notch 22 to release the meshing with the gear 24.</p> |
