| 摘要 |
It consists in using a single motor 1 which, via two gearings 7, 8, transmits the motion to another two gearings 9, 10, the first of them integrated with the main axis 5 of the optics and the second associated with mechanisms inside the laser nozzle 6, the gearings 7, 8 being associated via a clutch 11, which makes it possible to isolate the second one, assisted by a brake 12, and the aforesaid mechanisms associated with the nozzle 6 incorporate a ring 18, which moves via bearings in an eccentric sector 5' of the main axis 5, this ring being associated with another ring 13 on which is mounted the gearing 10 with interpositioning of an intermediate solid washer 21 which incorporates on its surfaces a diametrical rib and slot, perpendicular to each other, by means of which said washer is related to a rib and slot, likewise diametrical, on the aforesaid rings. <IMAGE>
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