Mold type plastic gear
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 6, 2000
Grant Date -
N/A
app pub date -
Apr 2, 1998
filing date -
Apr 3, 1997
priority date (Note) -
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Abstract
A molded plastic circular gear which has removed its wall portions on the inside of a tooth root of its circumferential gear teeth portion. The gear has a circular rim formed at a distance from and on an inside of the tooth root. The gear is further formed by injection of resin through gates located in the web portion of the inside of the rim. The gear is further characterized in that the thickness in the axial direction of the web portion of the inside of the rim is made larger than that of the web portion on the outside of the rim.
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