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:
Dec. 29, 2009
Filed:
Feb. 14, 2007
Masaki Takasan, Aichi, JP;
Hirohiko Ishikawa, Aichi, JP;
Kazuo Seiki, Aichi, JP;
Tsuyoshi Kodera, Aichi, JP;
Kitaru Iwata, Aichi, JP;
Masaki Takasan, Aichi, JP;
Hirohiko Ishikawa, Aichi, JP;
Kazuo Seiki, Aichi, JP;
Tsuyoshi Kodera, Aichi, JP;
Kitaru Iwata, Aichi, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi, JP;
Abstract
Provided is a vibration actuator in which a plurality of rotors can be driven by a single vibration unit. Two rotors (A) and (B) are attracted toward corresponding stators to be contacted with and pressurized against the corresponding stators () and (), respectively, through a tension of a wire member (). A composite vibration combining a plurality of vibrations is generated by a composite vibrator () to cause elliptical movements in corner portions of the stators () and (). As a result, the two rotors (A) and (B) abutting onto and pressurized against the two stators () and () are rotated about rotation centers (C) and (C) thereof, respectively, at the same time.