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:
Apr. 19, 1983
Filed:
May. 30, 1980
Fumihisa Hori, Tamayama, JP;
Mikio Miyajima, Nishine, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A type setting device for printers, comprising a drive motor, a drive gear mounted on a rotary shaft and rotated by the drive motor, a type wheel having a plurality of type elements and rotatably mounted on the rotary shaft, a first spring clutch interposed between the drive gear and the rotary shaft, a ratchet gear fixedly mounted on the rotary shaft and selectively stopped to control the first spring clutch, and a second spring clutch adapted to prevent the rotary shaft from being rotated reversely with respect to the rotation of the drive gear. The drive gear can thus be kept rotating at all times so that it is unnecessary that the motor be started and stopped every time a character is printed. This allows a high-speed type selection and high-speed printing.