Invention Grant
- Patent Title: Flat strain wave gearing
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Application No.: US15500605Application Date: 2014-08-06
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Publication No.: US10393227B2Publication Date: 2019-08-27
- Inventor: Jun Handa , Yoshihide Kiyosawa , Noboru Takizawa , Xin Yue Zhang
- 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/JP2014/070790 WO 20140806
- International Announcement: WO2016/021011 WO 20160211
- Main IPC: F16H49/00
- IPC: F16H49/00 ; F16H1/32 ; F16H3/70 ; F16H57/02 ; F16H55/08
Abstract:
A relieving portion is formed between a first external tooth portion and a second external tooth portion in the external teeth of a flexible externally toothed gear of a flat strain wave gearing. The length L1 of the relieving portion in the tooth trace direction is within the range of 0.1 to 0.5 of the tooth width L of the external teeth. The maximum relieving amount t from the tooth top land of an external tooth in the relieving portion is 3.3×10−4
Public/Granted literature
- US20170219050A1 FLAT STRAIN WAVE GEARING Public/Granted day:2017-08-03
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