| 摘要 |
PURPOSE:To change the reciprocation of a slide table into the one-way rotation of sprockets by engaging rotatable sprockets at a fixed position with a center side chain of two lines oppositely rotatable on the slide table. CONSTITUTION:When a power-transmitting slide table 3 reciprocates, a transmission bolt 32 connected thereto pushes and draws a slide table 5, and further ratchet-operating rods 20 and 21 through ratchet-operating compression springs 24 and 25, and thereby, ratchets 17 and 18 are pushed to stop the rotation of ratchet gears 9 and 10. Consequently, the rotation of the main gear sprockets 7 and 8 fixed coaxially are stopped, and drive wheel sprockets 13 and 12 engaged therewith and chains 36 and 35 are stopped as well to rotate clockwise the power-transmitting sprocket 15 engaged with chains 36 and 35. Meanwhile, the other engaged chains 35 and 36 are run idle. |
