Mechanical amplification mechanism for electromechanical transdu

Details Mechanical amplification mechanism for electromechanical transdu Mechanical amplification mechanism for electromechanical transdu

1985-08-12

1987-06-23

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

101 9305, 101 9348, 4001572, H01L 4108, B41J 312

Patent

active

046755683

ABSTRACT:
A piezoelectric transducer for a printing pin of a dot-matrix or an armature of a relay drives a mechanical amplification mechanism having a base plate with a reference wall that is to be fixed to a frame. An elongated piezoelectric transducer element extends in the direction of its expansion between the base plate and a lever arm. A lever arm has a first end portion coupled to an end of the piezoelectric transducer element, which is remote from the base plate. The lever arm is fixed to the second portion of the base plate by a fulcrum member located at a position near the first end. A band spring has one end coupled between the second end portion of the lever arm and the base plate. An actuating element is fixed to substantially a central portion of the spring. The actuating element may be either a printing pin of a dot-matrix or the moving contact of a relay.

REFERENCES:
patent: 2800551 (1957-07-01), Crownover
patent: 2835761 (1958-05-01), Crownover
patent: 4176976 (1979-12-01), Lendl
patent: 4193703 (1980-03-01), Sakmann
patent: 4435666 (1984-03-01), Fukui et al.
patent: 4523866 (1985-06-01), Hirzinger et al.
patent: 4547086 (1985-10-01), Matsumoto et al.
patent: 4570095 (1986-02-01), Uchikawa
patent: 4622484 (1986-11-01), Okihara et al.

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