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:
Jul. 28, 2015
Filed:
Mar. 09, 2012
Applicants:
Takuya Shirata, Tokyo, JP;
Yoshiaki Nakaya, Hyogo, JP;
Masahiko Okuda, Hyogo, JP;
Inventors:
Assignee:
NABTESCO Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/64 (2006.01); A61F 2/76 (2006.01); A61F 2/50 (2006.01); A61F 2/68 (2006.01); A61F 2/70 (2006.01);
U.S. Cl.
CPC ...
A61F 2/644 (2013.01); A61F 2/76 (2013.01); A61F 2002/5006 (2013.01); A61F 2002/5084 (2013.01); A61F 2002/6863 (2013.01); A61F 2002/704 (2013.01); A61F 2002/762 (2013.01); A61F 2002/7625 (2013.01); A61F 2002/7665 (2013.01);
Abstract
A multi-articulated link knee joint capable of detecting a bending angle of a knee section without causing problems of an installation space and wiring of a sensor is provided. A four-link knee joint includes a knee section of a four-link mechanism, a fluid cylinder that restrains an action of the knee section, a position detecting device that detects a position of a piston rod with respect to a cylinder tube as an extension and contraction amount of the cylinder, and a computer that acquires a bending angle of the knee section by converting the position detected by the position detecting device.