Electrically controlled shift actuator
US5180959A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1991 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Aug 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2003
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electrically controlled shift actuator (2) of the type having a rotatable worm gear wheel (22) driven by a motor (M) to a predetermined one of at least two rotational positions, the wheel having an eccentric drive pin (26) moving a reaction member (14) to preload a spring-charged (10) shift member engagement means comprising a slide (6) and ball (8) directly engaged with a shift member (16) to move a shift member to a predetermined one of at least two positions. The control includes a selector switch (36), a pair of position sensing switches (28,30), and an electrically controlled switch (62) for alternatively connecting the motor (M) to a power supply (38) or to a dynamic braking circuit (66-68), but never to both simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.