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:
May. 22, 2007
Filed:
Jun. 06, 2005
Applicants:
Shigekazu Nagai, Adachi-ku, JP;
Akio Saitoh, Kawaguchi, JP;
Ryuichi Masui, Bando, JP;
Masaki Imamura, Moriya, JP;
Inventors:
Shigekazu Nagai, Adachi-ku, JP;
Akio Saitoh, Kawaguchi, JP;
Ryuichi Masui, Bando, JP;
Masaki Imamura, Moriya, JP;
Assignee:
SMC Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 47/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Helical gears are used for a sun gear, planet gears, and an internal gear. Accordingly, when a load, which exceeds a preset torque, is applied to the internal gear, the internal gear is moved in a direction toward an input shaft or a direction toward an output shaft while making rotation in a direction different from that of the sun gear to automatically switch the speed reducing ratio.