Connecting rod fracture splitting apparatus and fracture splitting method
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United States of America Patent
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Feb 25, 2014
Grant Date -
Sep 15, 2011
app pub date -
Feb 7, 2011
filing date -
Mar 10, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A fracture splitting jig is fitted into a crank pin hole of a connecting rod, and a fracture load is applied in a longitudinal direction of the connecting rod via the fracture splitting jig to thereby fracture a big end of the connecting rod. A mandrel as the fracture splitting jig is divided into four parts to be separable from each other in a longitudinal direction of the connecting rod and in a direction orthogonal to the longitudinal direction. When the big end is fractured, a fractured portion thereof is allowed to come in contact with a predetermined portion of the fracture splitting jig.
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