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. 27, 2003
Filed:
May. 09, 2001
Masashi Yasuda, Amagasaki, JP;
Tokkyokiki Co., Ltd., Amagasaki, JP;
Abstract
A vibration control device in accordance with the present invention is provided with a liquid lever mechanism which has an action member , a liquid chamber and a driving plate , and is used for enlarging a displacement, a piezo-actuator which can be displaced in a direction so as to change the volume of the liquid chamber , and a rubber vibration isolator which is placed between the liquid lever mechanism and the piezo-actuator in series therewith. This vibration control device has a low natural frequency so that it has a superior passive vibration-blocking performance at high-frequency bands, while maintaining a superior active vibration-blocking performance at low-frequency bands, and also makes it possible to achieve a small size.