Machine element or mechanism – Control lever and linkage systems – Resilient connections
Patent
1987-05-12
1989-05-16
Moore, Richard E.
Machine element or mechanism
Control lever and linkage systems
Resilient connections
74519, 337140, 60527, G05G 100, H01H 6106, H01H 7118
Patent
active
048298433
ABSTRACT:
An apparatus for rocking a crank has a crank having opposite ends and being pivotally mounted at one end thereof to a first point on a first substrate, a first spring attached at one end thereof to a second point on a second substrate and at the other end thereof to the other end of the crank and a second spring attached at one end thereof to a third point on a third substrate and at the other end thereof to the other end of the crank, an angle defined between a line extending through the first and second points and a line extending through the first and third points, respectively, on a side opposite an arc through which said other end of the crank moves being in a range of 105.degree. to 160.degree. and the first spring or both first spring and second springs being made of shape memory alloy(s) which returns(s) to a predetermined shape upon application of heat whereby the crank is rocked back and forth by temperature variations.
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Luong Vinh
Moore Richard E.
The Furukawa Electric Co. Ltd.
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