| 摘要 |
A high speed matrix print head assembly is provided for precisely locating the multiple armatures between the magnetic yoke and print pin of the assembly. An armature guide and supporting spring member is provided having guide slots therein which cooperate with an armature positioning stud protruding through the armature from the armature housing. The armature guide and supporting spring member has a raised longitudinal ridge thereon forming a fulcrum point contact line between the magnetic yoke and the armature guide and supporting spring member to provide a predetermined spring load to the fulcrum point line where the armature pivots. An additional armature spring may provide an additional predetermined spring load. The precise location of the armature and providing a predetermined spring load with the fulcrum line of the armature allows high speed up and down motion of the armature without the interference of other motion. Gap adjustment is also provided by two or four adjustment screws for moving the magnetic assembly with respect to the armatures mounted in the armature housing.
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