Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Reexamination Certificate
2007-02-16
2008-07-01
Tolan, Edward (Department: 3725)
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
C072S102000, C072S469000
Reexamination Certificate
active
07392680
ABSTRACT:
There is provided a rolling die and a method for forming a thread or worm and a spline having a small number of teeth whose number is thirteen or less simultaneously by rolling. By use of rolling dies, the formation of a worm by rolling by use of a thread rolling die starts, and after that, the formation of a spline having a small number of teeth by rolling starts by use of a spline rolling die while continuing the formation of the worm. Accordingly, a rolled material can be rolled forcibly by a driving source from the worm rolled using the thread rolling die. As a result, the spline having a small number of teeth whose number is thirteen or less can be formed by rolling onto the rolled material at the same time as the formation of the worm.
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Higuchi Masahiko
Kinoshita Yasuo
Umebayashi Yoshihiro
Hayashi Precision Co. Ltd
Muramatsu & Associates
OSG Corporation
Tolan Edward
Toyota Jidosha & Kabushiki Kaisha
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