Double flank worm gear mechanism
US6776064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2000 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Dec 1, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19953
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A worm/worm gear assembly comprises a worm having teeth defined by at least one thread disposed thereon and a worm gear having teeth protruding from a surface thereof. At least one of the worm and the worm gear is fabricated from a resilient material. The teeth of the worm and the teeth of the worm gear are interengaged and in a compressive relationship with each other to maintain double flank contact therebetween. At low- or no-load conditions, the double flank contact is made at the opposing outer edges of each of the teeth. At moderate-load conditions, the contact extends from the opposing outer edges of each of the teeth toward the center of each of the teeth. A method for delashing a gear system comprises disposing the worm in mechanical communication with the worm gear and loading the worm gear to cause the worm gear to compressively engage the worm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.