Speed reduction mechanism, motor with speed reduction mechanism, and method for producing speed reduction mechanism
US9154015B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Mar 15, 2011 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Aug 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19842
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure angle of the worm is set to be greater than a pressure angle of the worm wheel so that a maximum number of meshing teeth becomes smaller than or equal to n (where n is a natural number) with respect to the speed reduction mechanism in which a number of meshing teeth is always n+1 or changed between n+1 and n by rotation under a condition in which the pressure angles of the worm and the worm wheel are the same with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.