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:
Aug. 27, 2002
Filed:
Mar. 15, 2000
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Abstract
A geared motor comprising a reduction gear unit of oscillating internal meshing planetary gear structure type and a motor unit coupled to each other, the reduction gear unit having a first shaft and a second shaft located on its center axis L, external gears and being fitted on the outer periphery of the first shaft so as to be capable of oscillating rotations, an internal gear with which the external gears mesh internally being provided concentrically with the first shaft, the second shaft being coupled to the external gears via means for extracting the rotational components of the external gears. A simple planetary roller mechanism for transmitting rotational power by means of the friction between rollers is interposed between the reduction gear unit and the motor unit to reduce the vibration and noise levels greatly.