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:
Jan. 02, 2001
Filed:
Aug. 25, 1998
Yoshitaka Nose, Kyoto, JP;
Daisuke Shige, Kyoto, JP;
Murata Kikai Kabushiki Kaisha, Kyoto, JP;
Abstract
A drive power transmission mechanism situated between a drive motor and a pick-up roller for transmitting a drive power to the pick-up roller from the drive motor to rotate the pick-up roller under a normal condition. The rotating pick-up roller picks up a sheet at a time from a stack of sheets piled up on a paper feed tray. The transmission mechanism includes a torque limiter that interrupts drive power transmission to the pick-up roller from the drive motor when the pick-up roller contacts an empty paper tray. The drive power transmission mechanism also includes a clutch for preventing drive power transmission from the pick-up roller to the drive motor. The drive power transmission from the pick-up roller to the drive motor occurs, for example, when both the pick-up roller and a feed roller contact the same sheet and the pick-up roller rotates faster than a predetermined speed.