ACTIVE VIBRATION OMISSION DEVICE - TAKENAKA KOMUTEN CO

Title:

ACTIVE VIBRATION OMISSION DEVICE

Document Type and Number:

Japanese Patent JPH05149379

Kind Code:

A

Abstract:

PURPOSE: To provide a vibration omission device capable of favourably controlling itself against slight vibration while absorbing position slippage at the time of assembling.

CONSTITUTION: A piezo actuator 5Z constituted by interposing more than three layers of a shearing force absorption member 15 consisting of a metal plate 13 and a thin elastic body 14 which is thin in wall thickness on an end surface of a laminated type piezo element 10 in the drive direction is provided free to drive respectively in three dimensional directions between a lower part frame and an equipment installation board. Thereafter, a vibration sensor to detect vibration in the three dimensional directions is provided, and a control device to output a drive signal to cancel vibration to the piezo actuator 5Z in accordance with the vibration detected by the vibration sensor is provided.

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Inventors:

MURAI NOBUYOSHI
IMAZAWA TAMIO
TAKAHASHI YOSHINORI
YOSHIOKA HIROKAZU
FUJITA TAKASHI
SHIBUYA SADAO
HAYATSU MASAKI
TAKESHITA AKIJI
HAYAKAWA TAHEI
YASUDA MASASHI

Application Number:

JP34202791A

Publication Date:

June 15, 1993

Filing Date:

November 29, 1991

Export Citation:

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Assignee:

TAKENAKA KOMUTEN CO
FUJITA TAKASHI
HITACHI PLANT ENG & CONSTR CO
HITACHI KENSETSU SEKKEI KK
TOKKYO KIKI KK

International Classes:

F16F15/02; G05D19/02; (IPC1-7): F16F15/02; G05D19/02

Domestic Patent References:

JPH02246382A	1990-10-02
JPH03219141A	1991-09-26

Attorney, Agent or Firm:

Tsutomu Sugitani

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