Actuator structure and method for attaching a gear or pulley to lead screw
US7410201B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2004 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Oct 28, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18792
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved lead screw actuator for use in applications including power vehicle windows is provided that significantly reduces the amount of machining that must be performed on the lead screw to enable secure attachment of a gear or pulley. The lead screw has a plurality of threads on its outer annular surface and a first and second axially spaced circumferential groove. A gear or pulley disposed about the lead screw has a female thread formed into an inner annular surface that is configured to engage at least one of the plurality of threads of the lead screw between the first and second grooves. A pair of rings are disposed within the first and second grooves in order to restrict axial movement of the gear or pulley on the lead screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.