Patent · US Expired

Armature with angled bore for print needle fastening

US5174664A · kind A · utility

0Cited by

11References

2Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Bernd Gugel · Erbach, DE
Horst Heisele · Asselfingen, DE
Herbert Kitzberger · Oberstotzingen, DE

Key dates

Filing date	Aug 2, 1991
Grant date	Dec 29, 1992
Priority date	—
Expiry date	Aug 2, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/26
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.