Title:
METHOD FOR PRODUCING WORM WHEEL
Document Type and Number:
WIPO Patent Application WO/2017/169250
Kind Code:
A1
Abstract:
This method for producing a worm wheel 10 comprises: a step for combining a first mold 43 for shaping a first tooth plane 13 of a wheel tooth 12 to be pushed by a shaft tooth 22 when a worm shaft 20 is rotated in a D1 direction, with a second mold 53 for shaping a second tooth plane 14 of the wheel tooth 12 to be pushed by the shaft tooth 22 when the worm shaft 20 is rotated in a D2 direction, so as to form a cavity 31 defined by the first mold 43 and the second mold 53; a step for injecting a molten resin into the cavity 31 so as to shape the wheel tooth 12; and a step for pulling the first mold 43 and the second mold 53 away from each other in mutually opposite directions that are slanted with respect to a tooth trace T of the wheel tooth 12.
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Inventors:
YOSHIKAWA SHINRAKU (JP)
Application Number:
PCT/JP2017/005739
Publication Date:
October 05, 2017
Filing Date:
February 16, 2017
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F16H55/22; B29C33/42; B62D5/04; F16H55/06
Foreign References:
| JP2013160334A | 2013-08-19 | |||
| JP2007245521A | 2007-09-27 | |||
| JP2009137067A | 2009-06-25 | |||
| JPH0263661A | 1990-03-02 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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