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. 01, 2011
Filed:
Mar. 03, 2008
Kenji Ikeda, Kanagawa, JP;
Hiroaki Satoh, Kanagawa, JP;
Susumu Kibayashi, Kanagawa, JP;
Toru Nishida, Kanagawa, JP;
Takeshi Zengo, Kanagawa, JP;
Kenji Ikeda, Kanagawa, JP;
Hiroaki Satoh, Kanagawa, JP;
Susumu Kibayashi, Kanagawa, JP;
Toru Nishida, Kanagawa, JP;
Takeshi Zengo, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A roller mechanism includes a pair of rollers and an urging unit. The pair of rollers oppose one another sandwiching a conveyance path of a sheet material, and are provided to be capable of increasing and reducing an axis-to-axis separation thereof. The urging unit urges at least one of the pair of rollers in a direction of reducing the axis-to-axis separation of the pair of rollers with an urging force that increases with an increase in the axis-to-axis separation of the pair of rollers, and presses the sheet material with the pair of rollers. The urging unit increases the urging force non-linearly, with a rate of increase of the urging force falling as the axis-to-axis separation of the pair of rollers increases within a range of changes at times of sheet material-pressing.