METHOD FOR MANUFACTURING WORM WHEEL
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United States of America Patent
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Jun 17, 2021
app pub date -
Feb 16, 2017
filing date -
Mar 28, 2016
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Abstract
The method for manufacturing the worm wheel includes a step of combining the first molds for molding the first tooth surfaces of the wheel teeth to be pushed by the shaft tooth when the worm shaft rotates in the direction and the second molds for molding the second tooth surfaces of the wheel teeth to be pushed by the shaft tooth when the worm shaft rotates in the direction to form the cavities defined by the first molds and the second molds, a step of injecting the molten resin into the cavities to mold the wheel teeth, and a step of separating the first molds and the second molds from each other in the direction oblique to the tooth traces of the wheel teeth.
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