VIBRATION CONTROL DEVICE

Title:

VIBRATION CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/044070

Kind Code:

A1

Abstract:

Provided is a feature that allows the duration of vibrations of a vibratory body to be freely controlled. Provided is a vibration control device 1 equipped with: a piezoelectric component 10 fixed to a vibratory body 4 to be vibration-controlled; and an inductor 20 and a resistor circuit 30 connected in parallel to the piezoelectric component 10. The resistor circuit 30 may be a variable resistor the resistance value of which can be changed from a negative value to a positive value. The resistance value of the resistor circuit 30 may be set to a positive vale to damp the vibration of the vibratory body 4, and the resistance value of the resistor circuit 30 may be set to a negative value to vibrate the vibratory body 4.

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Inventors:

MIYAKE YOSHIRO (JP)
NORO MASAO (JP)

Application Number:

PCT/JP2018/020004

Publication Date:

March 07, 2019

Filing Date:

May 24, 2018

Export Citation:

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Assignee:

YAMAHA CORP (JP)

International Classes:

H04R3/00; B06B1/06; F16F15/02; G10H1/32; G10H3/00; H02N2/06

Domestic Patent References:

WO2017150267A1

2017-09-08

Foreign References:

US5783898A	1998-07-21
JP2007071238A	2007-03-22

Attorney, Agent or Firm:

TACHIBANA, Kenji et al. (JP)

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