Geared rotary actuator with internal stop mechanism
US5190503A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1991 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Dec 16, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/40
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Weight and complexity concerns in geared rotary actuators and stop mechanisms for aircraft or the like may be minimized in the structure including a housing (18) adapted to be fixed to another structure, a rotatable input shaft (14) journalled by the housing (18), an output shaft (22, 28) journalled by the housing and a coupling between the input shaft (14) and the output shaft (22, 28) including at least one rotatable gear (42). The system includes a mechanical sensor (66) for sensing when the gear (42) has rotated close to an overtravel position and a first stop element (82) is associated with the input shaft (14) to be rotatable therewith. A second stop element (80) is movable into interfering relation with the first stop element (82) to stop rotation thereof and is carried by a gear part (19). Also included is an actuator (60, 62, 68, 70, 72) responsive to the sensor (66) for moving the second stop element (80).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.