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:
Dec. 12, 1995
Filed:
Jun. 10, 1993
Takeo Kishida, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A sheet feed mechanism including a first tractor slidably mounted onto a drive shaft and a guide shaft respectively disposed between a first and a second frame of the printer. A wire is passed through the first tractor and is stretched between the first and second frames by the use of a tension spring or another energizing device connected to one end of the wire adjacent the first frame. Both the first tractor and the second tractor have pin belts with a plurality of pins disposed thereon for aligning and meshing with the holes in the sides of successive sheets of paper. Furthermore, the first tractor includes a fixing assembly for fixing the first tractor to the wire, and also including a loosening assembly which, essentially simultaneously when or after the first tractor is fixed to the wire, produces a loosened portion in the wire at a position thereof intermediate the fixing assembly and the second frame that would permit the first tractor to slide on the drive and guide shaft to compensate for any increase or decrease in the width of a successive sheet of paper due to a change in temperature, humidity or the like.