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:
Jul. 16, 2019
Filed:
May. 29, 2015
Harmonic Drive Systems Inc., Tokyo, JP;
Masaru Kobayashi, Azumino, JP;
Tatsuro Hoshina, Azumino, JP;
Harmonic Drive Systems Inc., Shinagawa-ku, Tokyo, JP;
Abstract
A flat strain wave gearing () has a mechanism for preventing a flexible externally toothed gear () from moving in the direction of the device center axis () with respect to a rigid internally toothed gears (). The mechanism has an inner-peripheral groove () formed on inner teeth () of the internally toothed gear (), an outer-peripheral groove () formed on outer teeth () of the externally toothed gear (), and a flexible ring () mounted between the inner-peripheral groove () and the outer-peripheral groove (). The ring () is engageable with groove inner-peripheral surfaces (), from the direction of the device center axis (), at meshing positions of the both gears ().