ACTUATOR, AND CLOCK AND ANNUNCIATOR MOUNTED WITH THE SAME

Title:

ACTUATOR, AND CLOCK AND ANNUNCIATOR MOUNTED WITH THE SAME

Document Type and Number:

WIPO Patent Application WO/1999/007063

Kind Code:

A1

Abstract:

An actuator which can reduce the size and weight of equipment mounted therewith by amplifying the displacement of the movable end of a diaphragm as in-plane vibrations before outputting, wherein when a voltage is impressed upon a piezoelectric element (21) formed on the diaphragm (12) of the actuator (10), the diaphragm (12) makes out-of-plane flexural vibrations, one end section (125) of the diaphragm (12) is repeatedly displaced in the in-plane direction as the movable end, the displacement is transmitted to a lever (32), the base end side (321) of which is connected to the end sections (125) of the diaphragm (12) and an elastically deformable constricted section (31), and the free end (322) of the lever (32) makes in-plane vibrations and drives a driven member (500).

Inventors:

MIYAZAWA OSAMU (JP)

Application Number:

PCT/JP1998/003464

Publication Date:

February 11, 1999

Filing Date:

August 03, 1998

Export Citation:

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Assignee:

SEIKO EPSON CORP (JP)
MIYAZAWA OSAMU (JP)

International Classes:

G04G13/02; H01L41/09; H02N2/10; (IPC1-7): H02N2/00; G04C3/12

Foreign References:

JPH06225551A	1994-08-12
JPS61296781A	1986-12-27
JPH04341644A	1992-11-27
JPS63120277A	1988-05-24
JPH0587950A	1993-04-09
JPH09182469A	1997-07-11
JPH01174281A	1989-07-10
JPH09135586A	1997-05-20
JPH05236595A	1993-09-10
JPH0548447U	1993-06-25

Other References: