| 摘要 |
PURPOSE:To permit the high-speed respondence of open-type printing head as well as lengthen the life of the printing head by a method in which a vibration insulator stopper is provided facing to the tip of a plate spring, and the plate spring is magnetically attracted by the core and also supported mechanically on the stopper. CONSTITUTION:A ferrite composite stopper 7 having excellent vibration-insulating effect is provided, and at the moment exciting pulse to a coil 5 is interrupted and a plate spring 3 is attracted by a core 2, the plate spring 3 hits the stopper 7 at first to obtain a structure in which no impaction is given to the core 2. The plate spring 3 is attracted by the core 2 staticaly by the magnetic flux of a permanent magnet 1, and the tip of the plate spring 3 is mechanically supported by the stopper 7. |
