Polyurethane elastomer actuator
First Claim
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1. A polyurethane elastomeric actuator comprising:
- a sheet of an elastomeric material;
said elastomeric material being of a type which is displaced when an electric field is applied thereto, and returns toward its original dimension when said electric field is removed;
first and second electrodes on opposed sides of said sheet;
at least one of said first and second electrodes having a property which converts displacement of said elastomeric material into one of a curvature of said sheet and an elongation of said sheet.
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Abstract
A polyurethane elastomer actuator comprising a polyurethane elastomer 1 capable of deforming due to the orientation by an electric field, wherein the shrinkage displacement occurring at the time of the application of an electric field is transformed into other displacement. This polyurethane elastomer actuator does not require electrolyte and high voltage. Since it is not accompanied by chemical reactions and heat generation, its durability hardly deteriorates. This actuator deforms largely during driving.
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14 Claims
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1. A polyurethane elastomeric actuator comprising:
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a sheet of an elastomeric material; said elastomeric material being of a type which is displaced when an electric field is applied thereto, and returns toward its original dimension when said electric field is removed; first and second electrodes on opposed sides of said sheet; at least one of said first and second electrodes having a property which converts displacement of said elastomeric material into one of a curvature of said sheet and an elongation of said sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification