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. 08, 2007
Filed:
Apr. 15, 2005
Yoshihiro Tanioka, Nagano, JP;
Kiyoto Kobayashi, Nagano, JP;
Yoshihiro Tanioka, Nagano, JP;
Kiyoto Kobayashi, Nagano, JP;
Harmonic Drive Systems, Inc., Tokyo, JP;
Abstract
An actuator has a motor and a wave gear reduction drive in which a wave generator is coaxially connected to an output shaft protruding forward from a front surface thereof. A shaft portion of the output shaft coaxially extends through inside a cylindrical trunk in the flexible internal gear of the wave gear reduction drive, and a magnetic encoder for detecting the rotation of the output shaft is mounted on the shaft portion. Since the dead space inside the cylindrical trunk is used as the space for disposing the magnetic encoder, an entire length can be reduced in comparison with an actuator in which the motor, the wave gear reduction drive, and the encoder are arranged in the axial direction.