Device for magnifying displacement of piezoelectric element and

Details Device for magnifying displacement of piezoelectric element and Device for magnifying displacement of piezoelectric element and

1990-09-04

1992-05-05

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

29 2535, H01L 4108

Patent

active

051111012

ABSTRACT:
A device for magnifying displacement of a piezoelectric element at a printing head is proposed. The displacement of a column shaped piezoelectric element due to applied voltage is transmitted to a contact member and is magnified via a displacement magnifying mechanism to drive a printing wire connected to the displacement magnifying mechanism. A temperature compensating member is disposed between a frame supporting the piezoelectric element and the piezoelectric element and/or between the contact member and the piezoelectric element, and gives a preload to the piezoelectric element to support in a fixed manner the piezoelectric element between the frame and the contact member. The temperature compensating member is plastically deformed to compensate for the deformation of the piezoelectric element due to temperature change.

REFERENCES:
patent: 4406966 (1983-09-01), Paros
patent: 4874978 (1989-10-01), Sakaida et al.

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