Worm gear mechanism
US4478103A · kind A · utility
16Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1981 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | May 22, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19953
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A worm (10) and worm gear (12) mechanism in which the gear (12), in addition to its gear teeth (20), also has a helical thread (22) formed thereon. The helical thread (11) of the worm (10) conventionally meshes with the gear teeth (20) of the worm gear (12), rotation of the worm (10) causing a corresponding rotation of the gear (12). The gear (12) is fitted in a threaded hole (21) so that, as it is rotated by the worm (10), it is also caused to move along its longitudinal axis within the hole (21).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.