Connecting structure of metal plates
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United States of America Patent
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Aug 14, 2012
Grant Date -
Dec 17, 2009
app pub date -
Dec 18, 2006
filing date -
Aug 22, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a connecting structure in which it is difficult for a crack to occur, even if a connection location is set in a portion on which concentrated tensile stress may occur. Laminated metal plates are concurrently punched out downward in shape of tongue piece. A depth of punch-out is not smaller than a total thickness of the laminated metal plates. A tongue piece portion is punched out in shape of cantilever beam while a central connection portion is left behind. The tongue piece portion is bent downward in the out-of-plane direction at a connection portion linking to the central connection portion in order that a location of the tongue piece portion in the extension direction on its way is parallel to a bend line. The tongue piece portion is configured to widen in width gradually toward a front end thereof.
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