Loading patent…
AssigneeMannesmann Aktiengesellschaft
InventorsBernd Gugel, Johann Stempfle
Estimating the term…
A method for production of an armature device group for matrix print heads of the clapper-armature construction is based on connecting and jointly processing prefabricated parts (1, 2) such that elongated armatures with wide armature arms (4) and narrower armature arms (5) are generated. For further decreasing the production costs and for increasing the precision of the armature coordination, for facilitating mounting and for saving assembly steps, an armature circle (1) is punched out with openings (6). An annular elastic shaped plate (2) of sheet metal is then attached covering the opening (6) and the radially outer and radially inner armature arms (4, 5) are then cut out employing a method such as thermal cutting or, respectively, water-torch cutting, without damaging of the shaped plate (2).
A method for production of an armature device for matrix print heads having a clapper-armature comprising
A method for production of an armature assembly for matrix print heads having a clapper-armature, where prefabricated parts, after their connection, are jointly machined by thermal cutting and water-torch cutting, respectively, where after the cutting, elongated armatures are formed with wider radial outer armature arms disposed in operating position over a magnet core of an electromagnet coil, and including narrower radial inner armature arms following to the outer arms for actuating a print element, characterized by the following process steps:
A method for production of an armature assembly for matrix print heads having a clapper-armature comprising
A method for production of an armature assembly for matrix print heads having clapper-armature comprising:
Dependencies are inferred from the claim text.