Wheel nut wrench and manufacturing process thereof
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United States of America Patent
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Dec 11, 2012
Grant Date -
Jan 13, 2011
app pub date -
Dec 17, 2009
filing date -
Jul 8, 2009
priority date (Note) -
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Abstract
In order to provide a wheel nut wrench in which strength of a nut socket portion is allowed to be increased even though processes are facilitated under a situation where a tube made of carbon steel such as S45C is used as a material, and a manufacturing process thereof, an embodiment to implement the present invention is a wheel nut wrench made with a tube-shaped steel tube and provided with a nut socket portion at least one end, a nut socket shell portion whose inner and outer peripheries are both formed in a hexagonal shape is provided at an end portion of the steel tube, a sleeve made of a steel plate and having a cross section of a hexagonal shape is pressed into the nut socket shell portion, and a portion of the nut socket shell portion is deformed toward the sleeve to thereby achieve unification of the nut socket portion and the sleeve.
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