Actuator mechanism having adjustable stop
US4877120A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1988 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Mar 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G5/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator includes a main shaft (16) at the input of a speed reducing gear unit (29-32) which carries an overtravel stop mechanism. The grounded stops (68) are adjustable by a worm gear (72) to allow a near infinite resolution of the position for the overtravel stop of the driven member (16). Rotating stop members (52) are mounted for translation along the main shaft (16). When traveling nut (44) engages a cam surface (60), cam follower (56) translates the normally rotating stop members (52) in a direction opposing the bias force of a compression spring (36) into a stop condition against the grounded fixed stop (68) on wheel (50).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.