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:
Apr. 22, 2008
Filed:
Dec. 05, 2006
Teruhisa Ando, Fuwa-gun, JP;
Masataka Kojima, Fuwa-gun, JP;
Masahiro Tsunemi, Kobe, JP;
Hidekazu Okufuji, Kobe, JP;
Teruhisa Ando, Fuwa-gun, JP;
Masataka Kojima, Fuwa-gun, JP;
Masahiro Tsunemi, Kobe, JP;
Hidekazu Okufuji, Kobe, JP;
NABCO Limited, Hyogo-ken, JP;
TS Corporation, Minato-ku, JP;
Abstract
In a gear mechanism, inner gear teeth and outer gear teeth are formed of high-tooth. An engagement ratio of the inner and outer gear teeth is configured so as to be 2.0 or more, whereby a load can be transferred between the inner and outer teeth via a continuous gear engagement of at least two pairs of gear teeth thereof. Accordingly, a contact face pressure and a bending stress occurring to inner and outer gear teeth can be reduced, the limitation of the durability of the gear mechanism due to the large difference of durability between the inner and outer gear teeth can be improved, and the necessity of increasing hardness of the inner gear teeth can be lessened.