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:
Mar. 22, 2005
Filed:
Jan. 31, 2003
Kai Zhao, Windsor, CA;
Tom Frederick Samrah, Troy, MI (US);
Jeff Gerald Kozlowski, Clinton Township, MI (US);
Erick William Rudaitis, Sterling Heights, MI (US);
Kai Zhao, Windsor, CA;
Tom Frederick Samrah, Troy, MI (US);
Jeff Gerald Kozlowski, Clinton Township, MI (US);
Erick William Rudaitis, Sterling Heights, MI (US);
SMC Corporation, Tokyo, JP;
Abstract
The present invention provides a low-cost electric clamping device in which a toggle linkage can be actuated by a small low-torque electric motor. The device includes a gear speed reducing mechanism connected to the electric motor, a linkage connected to the speed reducing mechanism, a clamp arm shaft connected to the linkage, and a bodyfor housing them. The linkage includes a crank link connected to a last-stage spur gear of the speed reducing mechanism, a cam follower link which is connected at one end thereof to the crank link and to which a cam follower moving on cam rail faces is rotatably mounted, and a driving lever to which the other end of the cam follower link is connected and which projects from the clamp arm shaft.