The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 1990
Filed:
Oct. 25, 1988
Clemens Kaufmann, Ulm, DE;
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Abstract
The print pin drive device group (3) and a print pin guide device group (5) with a casing (8) guiding the print pins (7) is provided with an adjustable print pin guide (2) at a matrix pin print head (1). An electric lifting magnet (9) with set screw (12) for the magnet core (13) is disposed in the regiion of the print pin guide device group (5). The magnet core (13) forms together with a pin guide carrier (15) an adjustable magnetic discontinuity air gap (14). Therefore, the pin guide carrier (15) is movable back and forth between two fixedly adjustable positions. In order to provide for a precisely operating print pin guide, which is also suitable for shorter, more bend-resistant print pins, behaving stiffer against bending, it is disclosed that the electric lifting magnet (9) is disposed with its coil center axis (16) perpendicular to the center axis (17) of the matrix pin print head (1) running perpendicular to the print direction of the print pins (7) and that the magnet core (13), movable in a guide, is connected with a parallel adjustable pin guide carrier (15).