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:
Mar. 06, 1979
Filed:
Apr. 27, 1977
Yoshihiro Mitsui, Shiojiri, JP;
Tadayoshi Shimodaira, Shiojiri, JP;
Abstract
A print character selection mechanism for use with printers of the type wein print characters are circumferentially disposed about the character ring and are selectively positioned in a print position by deenergizing an electromagnetic coil is provided. Each of the character rings includes a ratchet gear having a plurality of circumferentially disposed teeth, which teeth correspond to print characters circumferentially disposed about the print character ring. The instant invention is particularly characterized by a comb-shaped yoke member having a plurality of selection yokes, associated with each of the character rings, and a common yoke supporting each of the selection yokes. An electromagnetic coil is disposed about each selection yoke and is normally energized to induce a flux field in the selection yoke. A plurality of selection members are normally disposed in a rest position in abutting engagement with a selection yoke when the electromagnetic coil is energized. A resilient biasing member is disposed in engagement with each of the selection members for resiliently biasing each of the selector means into engagement with a ratchet wheel associated therewith to thereby select a print position of the character ring when the electromagnetic coil, associated with the selection yoke, is deenergized.