Armature with angled bore for print needle fastening

In a matrix printhead having a plurality of electromagnetic drives arranged in an annular cluster around an axis including an annular support for fastening a plurality of radially inwardly extending drive elements further having a plurality of reciprocating print needles moving generally in a direction of the axis, a fastening structure for each of these needles to a radial inward end of the respective drive element comprising:

• said radially extending drive elements each tapering from a wide area of fastening the respective element to the annular support toward a radially inward extending, narrow part, said narrow part being wider in an area of needle fastening than a thickness dimension for the print needle;
• a drilled bore centrally disposed in the needle fastening area of the drive element, the bore having a cross sectional contour which matches at least in parts the contour of the periphery of the needle to be inserted but being larger than said thickness dimension of the needle, the bore having a central straight axis which extends obliquely to a surface of the drive elements at an angle of about 50.degree., +10.degree. or -10.degree., said surface extending in radial direction of the respective drive element;
• and
• and solder positioned between the needle as inserted in said bore and said bore itself said solder being within a clearance space between the inserted needle and the bore.