Patents Assigned to Mannesmann AC.
  • Patent number: 5174664
    Abstract: A matrix printhead having a plurality of electromagnetic drives arranged in a cluster including a plurality of drive elements further having a plurality of reciprocating print needles, wires or styli, includes additionally a fastening structure for each of these needles, wires or styli to the drive elements in that the drive element has a width dimension which is larger than a diameter or a representative diameter dimension for the print needle, wire or stylus so as to accomodate an opening in the fastening area having said width and having a cross sectional contour which matches at least in parts the contour of the periphery of the needle to be inserted, there may be an extra slot and the needle as inserted is brazed or soldered to a opening. The opening is at an angle of between 40 and 60 degrees to the plane of the armature.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: December 29, 1992
    Assignee: Mannesmann AC.
    Inventors: Bernd Gugel, Horst Heisele, Herbert Kitzberger