Invention Grant
- Patent Title: Wave generator and strain wave gearing
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Application No.: US15519677Application Date: 2014-11-21
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Publication No.: US10557539B2Publication Date: 2020-02-11
- Inventor: Masaru Kobayashi
- Applicant: HARMONIC DRIVE SYSTEMS INC.
- Applicant Address: JP Shinagawa-ku, Tokyo
- Assignee: Harmonic Drive Systems Inc.
- Current Assignee: Harmonic Drive Systems Inc.
- Current Assignee Address: JP Shinagawa-ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- International Application: PCT/JP2014/080959 WO 20141121
- International Announcement: WO2016/079876 WO 20160526
- Main IPC: F16H49/00
- IPC: F16H49/00 ; F16C19/36 ; F16C33/58

Abstract:
A wave generator of a strain wave gearing has a rigid plug provided with an elliptical outer peripheral surface, and a roller bearing. The outer peripheral surface of the plug is provided with a major-axis-side outer-peripheral surface portion formed at a major axis position L1, and a minor-axis-side outer-peripheral surface portion formed at a minor axis position L2. The major-axis-side outer-peripheral surface portion is a tapered surface that is tapered along a center axis line, and the minor-axis-side outer-peripheral surface portion is an inverted tapered surface that is tapered in the opposite direction. An externally toothed gear can be supported and flexed into an elliptical shape without partial contact by using the wave generator in which the roller bearing is used.
Public/Granted literature
- US20170254403A1 WAVE GENERATOR AND STRAIN WAVE GEARING Public/Granted day:2017-09-07
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