| 摘要 |
PURPOSE:To provide a small-type printer used for a desk-top electronic calculator or the like, which consumes less energy, can be made small in size and produced at low cost, by a method wherein a head is moved by utilizing the resonance of an oscillating member without using any expensive motors. CONSTITUTION:When a signal is impressed on a coil 13, an iron core 11 is attracted in the direction of an arrow A, the oscillating members 7, 7' are rotated with pins 10, 10' as centers, respectively, and a carriage 6 is moved in the direction of an arrow B. When the impressing of the signal on the coil 13 is released, the core 11 is returned in the direction opposite to the arrow A by a spring 14'. When the impressing of the signal on the coil 13 is turned ON and OFF in synchronism with the natural vibration of a vibration system constituted of the oscillating members 7, 7', the carriage 6, the core 11 and the springs 14, 14', the carriage 6 can be resonantly vibrated with an extremely small amount of energy. Concurrently with the oscillation of the oscillating member 7, a recording paper 17 is travelled by a predetermined distance span in the direction of an arrow C. |
