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. 10, 2004
Filed:
Feb. 08, 2002
Toru Arakawa, Hyogo, JP;
Masaaki Matsui, Osaka, JP;
Kenji Nakasono, Osaka, JP;
Toshio Tanaka, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd, Osaka, JP;
Abstract
A roller device includes a motor and a speed reducer inside a cylindrical roller or arranged coaxially, and an electronic apparatus includes a printer using the roller device. This roller device comprises a motor ( ) disposed on a cylindrical roller ( ), a sun gear ( ), planet gears ( ), a first inner tooth gear ( ) provided inside of the cylindrical roller ( ), and a second inner tooth gear ( ) provided inside of a bearing element ( ). The rotation of the bearing element ( ) is suppressed by a predetermined force. Thus the rotation of the motor ( ) is decelerated, and the cylindrical roller is rotated at a reduced speed. By rotating the bearing element with a force greater than a predetermined force, the cylindrical roller can be rotated manually.