Linear motion device having an anti-twist safeguard, comprising an elongate anti-friction lining
US9151372B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Apr 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18576
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear motion device includes a housing, an extension arm, and an anti-twist safeguard. The extension arm projects from the housing and includes a securing section. The anti-twist safeguard includes at least one separate elongate anti-friction lining, which is formed with a constant cross-sectional shape. The anti-friction lining is arranged substantially without play between the housing and the securing section of the extension arm and extends transversely to a longitudinal axis. The extension arm is supported on the housing in such a way that it can move along the longitudinal axis. In the securing section, the extension arm extends parallel to the longitudinal axis with a constant external cross-sectional shape deviating from a circular shape. The anti-twist safeguard engages positively in said external cross-sectional shape, thus securing the extension arm with respect to the housing against twisting relative to the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.