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. 09, 2004
Filed:
Apr. 05, 2002
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Abstract
A reduction gears-integrated actuator provided with harmonic reduction gears a motor and a rotation position detector wherein a rotor comprises a cup-shaped rotary yolk a permanent magnet is fixed to the outer periphery of the rotary yolk a circular spline is formed in a silk-hat shape, a flange portion is fixed to one end of an actuator frame and a cylinder portion is disposed opposite to the inner periphery of the rotary yolk via a space, and a cup-shaped housing coupled with an output shaft is disposed between the output shaft and a rotating shaft and on the inner peripheral side of a flexible spline and a preloading elastic member is provided between a rotary shaft -supporting bearing and the housing, hence the axial-direction length of the actuator can be reduced, and a driving torque can be increased without compromise in reductions in size and weight, thereby providing a low-cost reduction gears-integrated actuator.