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.:

US 8757029 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2014

Filed:

Apr. 04, 2011
Applicant:

Mahito Negishi, Tachikawa, JP;

Inventor:

Mahito Negishi, Tachikawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a strain wave gearing having a high stiffness and no limitation imposed on rotation, and a robotic arm including the strain wave gearing. A strain wave gearing includes an electric motor and a strain wave gearing reducer. The strain wave gearing reducer includes: an outer ring member including a first internal gear; a pair of second internal gears each having internal teeth formed along an inner periphery thereof, and the pair of second internal gears differing from the first internal gear in number of teeth; a flexible gear; and a cam member, which distorts the flexible gear in a radial direction to cause the flexible gear to engage with the first internal gear and the pair of second internal gears. The pair of second internal gears is fixed to a pair of fixing plates coupled to each other by a shaft penetrating the cam member.


Find Patent Forward Citations

Negishi, Mahito. (2014). Strain wave gearing and robotic arm (U.S. Patent No. 8757029). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8757029

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