Sealed linear actuator unit
US8302498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Aug 29, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18848
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear actuator unit has a slide plate which is allowed to freely move along the outer rail while causing a cover to retreat. The linear actuator unit includes: an outer rail, which is formed into a cylindrical shape, and includes the slit-opening portion formed along an axial direction thereof; the slide plate (3), which is coupled to an inner block in the hollow portion through the slit-opening portion; a cover belt, which is tensioned between both ends in a longitudinal direction of the outer rail so as to cover the slit-opening portion; a belt-guiding member, which separates the cover belt from the outer rail correspondingly to movement of the slide plate; and a seal member, which seals between the belt-guiding member and the cover belt and between the belt-guiding member and the outer rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.