Title:
HARMONIC DRIVE GEAR WITH IMPROVED CONTACT RATIO
Document Type and Number:
WIPO Patent Application WO/2021/045419
Kind Code:
A1
Abstract:
The present invention relates to a harmonic gear device in which a first similarity curve obtained by similarly transforming a reference curve representing a moving locus of an external tooth with respect to an internal tooth in a non-deflected state and a second similarity curve generated by similarly transforming the first similarity curve are used as a criterion for generating a tooth profile, wherein the present invention may provide the harmonic gear device that enlarges a first curve represented by a moving locus of positive deflection located above the apex of the reference curve among the moving loci of positive deflection of the external teeth on the basis of the reference curve to approximate an approximate reference point arranged on the second similarity curve to create a second curve, and uses the second curve as the top of the tooth profile of the external tooth.
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Inventors:
AHN HYEONG JOON (KR)
Application Number:
PCT/KR2020/011221
Publication Date:
March 11, 2021
Filing Date:
August 24, 2020
Export Citation:
Assignee:
FOUNDATION SOONGSIL UNIV INDUSTRY COOPERATION (KR)
International Classes:
F16H49/00; F16H55/08
Foreign References:
| KR20140041395A | 2014-04-04 | |||
| JP2011144916A | 2011-07-28 | |||
| US20120285283A1 | 2012-11-15 | |||
| KR20180011177A | 2018-01-31 | |||
| KR20170081132A | 2017-07-11 | |||
| KR102146753B1 | 2020-08-21 |
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
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