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:
Sep. 08, 2009
Filed:
Sep. 13, 2005
Applicant:
Yoshio Murao, Hyogo, JP;
Inventor:
Yoshio Murao, Hyogo, JP;
Assignee:
Scientific Technologies Ltd., Kobe-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 27/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An inexpensive and high efficiency power transmission method and device with a simple structure for converting a rotational motion into a linear motion in accordance with a load is provided. A feed screw () and a female screw () having a larger diameter than the feed screw are engaged in an eccentric manner. A counterforce from a work is detected by a helical spring (). Then, rotation restraint of the female screw () engaged in an eccentric manner is released, and the female screw () is rotated. The feed screw () and the female screw () rotate in a differential manner so that traveling speed is decreased and that pressing force is increased.