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. 17, 1987
Filed:
Jul. 30, 1985
Tetsuo Taguchi, Kawaguchi, JP;
Takashi Ishikawa, Toride, JP;
Pentel Kabushiki Kaisha, Tokyo, JP;
Abstract
A wire matrix printer head has a group of print wires guided so as to pass through holes formed in an ink reservoir. The group of print wires are operatively connected to an actuator unit provided within a housing, the group of print wires having their free ends slidably supported by a bearing plate secured to one end of the housing. An ink chamber is disposed at the rear of the bearing plate, and within the ink chamber is provided an ink reservoir and a spring urging means for urging the ink reservoir towards the bearing plate. The ink reservoir has a sufficiently large clearance relative to each of the print wires, and accordingly, a supply of ink to the respective print wires is transmitted via the back surface of the bearing plate rather than a direct supply thereof from the ink reservoir to the print wire to prevent a deterioration of the ink reservoir due to highly frequent frictions between the ink reservoir and the respective print wires.