| 摘要 |
PURPOSE:To provide a small-sized high speed printing hammer imparting good printing grade, by constituting a V-shaped displacement enlarging mechanism by bonding the free ends of two leaf springs. CONSTITUTION:A first stage driving side leaf spring 2, a first stage fixed side leaf spring 3 and a second stage driving side leaf spring 4 are constituted so that all of the respective center lines L2, L3, L4 thereof cross at one point P1. The second stage driving side leaf spring 4, a second stage fixed side leaf spring 5 and a printing wire 6 are constituted so that all of the respective center lines L4, L5, L6 thereof cross at one point P2 while first stage fixed side leaf spring 3 and the second stage driving side leaf spring 4 are constituted so that the respective center lines L3, L4 thereof cross at a right angle. Similarly, the center lines L5, L6 also cross at a right angle. Therefore, energy transmission efficiency becomes extremely high and printing can be performed efficiently under low power consumption. |
