SCREW INSTALLATION STRUCTURE
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United States of America Patent
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N/A
Issued Date -
Dec 12, 2013
app pub date -
Jun 5, 2013
filing date -
Jun 11, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In a screw installation structure in which a first member, made of an iron-based material and having a male screw-threaded portion, is fixed to a second member, made of an aluminum-based material and having a screw hole, by screw-threaded connection between the male screw-threaded portion and the screw hole, a non-circular deformed portion is partly formed on an outer periphery of a portion of the first member, exposed from the screw hole of the second member. Also provided is an anti-rotation and anti-loosening member configured to be brought into fitted-engagement with the non-circular deformed portion. The anti-rotation and anti-loosening member, in fitted-engagement with the non-circular deformed portion, is brazed onto a surface of the second member in wall contact with a contact surface of the anti-rotation and anti-loosening member, so as to prevent loosening of the first member relative to the second member.
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