PRINT HAMMER ASSEMBLY

摘要

A print hammer assembly is disclosed comprising a support structure (38) having a hammer element (32) supported at one location thereon and a plunger (46) supported at another location thereon, and an electromagnetic actuator (59) including a pair of magnetizable members (76, 78) displaced apart a predetermined distance to define a space (84) of sufficient dimensions to enable the movement of the plunger (46) therethrough. The actuator (59) is capable of being selectively energized to establish a magnetic field in the space (84) to control the movement of the plunger (46) through the space. The print hammer assembly also comprises a mounting assembly for movably mounting the support structure (38) adjacent the electromagnetic actuator (59) such that the plunger (46) is in a position to be forced through the space upon energization of the actuator, whereby the support structure and thus the hammer element (32) will each be moved in a predetermined direction and at a predetermined speed upon energization of the actuator. The hammer element (32) is secured to the support structure (38) by way of a leaf spring assembly (60, 62).