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:
Oct. 08, 2013
Filed:
Jun. 06, 2012
Akito Sekigawa, Abiko, JP;
Daisaku Kamiya, Abiko, JP;
Kiyoshi Watanabe, Matsudo, JP;
Yusuke Obuchi, Nagareyama, JP;
Hideki Kushida, Moriya, JP;
Akito Sekigawa, Abiko, JP;
Daisaku Kamiya, Abiko, JP;
Kiyoshi Watanabe, Matsudo, JP;
Yusuke Obuchi, Nagareyama, JP;
Hideki Kushida, Moriya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A sheet stacking apparatus includes an endless belt member onto which sheets are stacked and which moves rotationally to convey the sheets; a plurality of holding members that is provided on the belt member and that holds the sheets down to a sheet stacking surface of the belt member to nip the sheets; and sheet detecting portions which detect presence or absence of sheets between the holding members and the sheet stacking surface of the belt member, the sheet detecting portions each include a light emitting portion that emits light and a light receiving portion that receives the light, and the light emitting portions and the light receiving portions are fixedly provided below the sheet stacking surface of the belt member so that the light emitting portions and the light receiving portions detect presence or absence of a sheet at times when facing the holding members.