Title:
DISPLACEMENT INCREASING DEVICE
Document Type and Number:
Japanese Patent JPS6142284
Kind Code:
A
Abstract:
PURPOSE:To simplify and reduce the size by surrounding two laminated piezoelectric elements by substantially elliptical cylindrical spring member, and using one point of short axis of the member as a displacing movable point. CONSTITUTION:Two laminated piezoelectric elements 10a, 10b are connected integrally in series to form a square rod-shaped laminated piezoelectric element 10 utilizing voltage longitudinal effect, and the element 10 is surrounded by elliptical-sectional or rhombic substantially elliptical cylindrical spring member 12. The opposed two points of the long axis of the member 12 are secured by means 14, one point of short axis direction is secured by securing means 13, and the other point of the short axis is used as movable point. When the element 10 elongates or contract longitudinally, the elongation is enlarged to prevent at the movable point.
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Inventors:
HAYASHI MASATO
Application Number:
JP16414884A
Publication Date:
February 28, 1986
Filing Date:
August 03, 1984
Export Citation:
Assignee:
KANSAI NIPPON ELECTRIC
International Classes:
G11B5/592; H01L41/083; H01L41/09; H02N2/00; (IPC1-7): G11B5/592; H01L41/08; H02N2/00
Attorney, Agent or Firm:
Shogo Ehara