| 摘要 |
The disclosure embraces a transmission gear for the wire guide of a coil winding machine and includes a rotary input shaft, a pair of electro-magnetic clutches, with each of the clutches having a toothed rack; each of the racks is connected to a rectilinearly movable carriage whereby when one or the other of said electro-magnetic clutches is actuated, the carriage will be moved by the associated toothed rack in a selected direction; limit switches are provided to reverse the direction of travel of the carriage by deactivating a given electro-magnetic clutch and activating the other of said clutches. |
