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. 31, 1987
Filed:
Jul. 01, 1985
Naoya Sasaki, Shimoinayoshi, JP;
Masataka Kawauchi, Ishioka, JP;
Yoshio Fukudome, Ishioka, JP;
Fumio Takeda, Shimoinayoshi, JP;
Yoichi Suzuki, Kashiwa, JP;
Toshio Mirubayashi, Toyoake, JP;
Itsunori Utsumi, Owariasahi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
This invention relates to a apparatus for separating and feeding sheets such as sheets of paper comprising an accommodation box for accommodating the sheets of paper stacked by their own weight, a pick-up roller provided so that the upper surface thereof projects into the interior of the box to bear the weight of the stacked sheets of paper, a separation arrangement comprising a frictional roller and the feed roller and provided so as to face an ejection port of the accommodation box from which sheets are sent out to the separation arrangement, and a support arrangement disposed on the side opposite to the ejection port supports the end, opposite to the ejection port, of the sheets of paper, and for allowing the lowermost sheet end to be free of the weight of the sheet thereabove when the lowermost sheet is moved to the ejection port side so that frictional resistance of the lowermost sheet is reduced greatly and the pick-up roller can surely pick up and convey the sheet one by one from the lower side of the sheets. The support arrangement comprises a roller freely rotating or a roller driven by a driving device, the latter have a circular or elliptical cross-sectional shape. The elliptical roller vibrate the end portion of the sheets opposite to the ejection port to make gaps therebetween.