Cover activating device
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United States of America Patent
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Aug 22, 2006
Grant Date -
Sep 30, 2004
app pub date -
Mar 11, 2004
filing date -
Mar 11, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An activating device activates a cover for the opening face of a container. Pivot arms are fixed to a pivot unit equipped with an electric motor through a reduction gear at one ends, and fixed to plate springs at the other ends. One end portions of the plate springs are fixed to the respective front and rear portions of the cover, the other end portions thereof are fixed to the other ends of the pivot arms. The resiliency of the plate spring is set lower in the vertical direction of the container. The plate spring is bent from its other end portion toward its one end portion at substantially 90.degree. or larger of bending angle. The plate spring is formed so that it bends toward the inside of the center of the cover between the pivot arm and the cover.
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