Motorized electric control device
US4772836A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Sep 26, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G2009/04748
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a motorized electric control device provided with a joystick (14), characterized in that it comprises two electrtic torque motors (4, 5) whose axes of rotation are at right angles to one another, two forks (9, 10) coupled at one end to the respective torque motor shafts and offset relative to said shafts, the joystick being mounted for pivoting in relation to the point of intersection of the axes of rotation of the torque motors, resilient means for returning the joystick to a vertical position, rotary potentiometers (22) whose axis of rotation is fixed to the other ends of the forks (9, 10) and whose electric outputs constitute the control outputs of the device, and an electric circuit (30) connected to the outputs of the potentiometers and to the electric inputs of the torque motors in order to produce a resistant torque opposite and proportional to the inclination of the joystick (14) in the vertical position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.