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:
Apr. 11, 2017
Filed:
Apr. 09, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Yuki Oda, Yokohama, JP;
Masanori Takahashi, Chigasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A vibration type driving device includes an electro-mechanical energy conversion element; a vibrator fixed to the electro-mechanical energy conversion element and configured to be vibrated by application of voltage to the electro-mechanical energy conversion element; a first driven member and a second driven member frictionally driven by press-contact with the vibrator and configured to transmit rotational forces by frictional driving to an output shaft; and at least one pressing portion configured to bring the first driven member and the second driven member into press contact with the vibrator, wherein the pressing portion, the first driven member, the second driven member, and the vibrator are arranged to allow an air flow generated by an airflow generation unit to flow through an air-ventilation path of the pressing portion, between the first driven member and the second driven member, and an air-ventilation path of the vibrator.