| 摘要 |
PURPOSE:To wind a film at a high speed by using a small-sized motor, by constituting the titled device in such a way that the spool and the sprocket of the device is differentially rotated by the motor. CONSTITUTION:When a film (c) extracted from a patrone is wound around the main body 2 of a motor 1 which also acts as a winding spool through a sprocket 24 and the switch 7 of the motor is turned on, a pinion 9 united to a rotor shaft 3 in one body is rotated and the rotation is transmitted to a gear 12 which acts as the input gear of a differential gear 11 after reducing 10 the number of revolution. When the gear 12 is rorated, a holding frame 13 is also rotated, and, if the load of shafts 15a' and 15b', namely, loads of the motor 2 and the sprocket 24 are equal to each other at this time, bevel gears 14a and 14b themselves which act as planet gears are meshed with bevel gears 15a and 15b which act as sun gears and stopped, and the bevel gears 14a and 14b do not turn on their axes but revolve around the shafts 15a' and 15b'. Therefore, gears 16 and 18 rotate at the same revolution per minute and the main body 2 of the motor 1 winds the film (c) closely. |
