Shift control assembly
US4485689A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1983 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Jan 10, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20702
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shift control assembly for automatic transmissions having three shifting sticks which are sequence interlocked wherein each stick is shifted to perform a single gear change. Each of the shifting sticks is manually operated to rotate a common control shaft which is rotatably supported in a housing of the assembly. A mechanism is provided for transmitting the rotary motion of the control shaft to the automatic transmission to control the gear position of the automatic transmission. A button and plunger assembly and an interlock plate is provided for each of the shifting sticks to selectively allow the sticks to rotate the control shaft upon shifting of the sticks in a predetermined sequence and otherwise prevent rotation of the control shaft. A detent mechanism is provided to give each of the shifting sticks "feel". An optional staging stick may be provided with an over-center locking mechanism, the staging stick bypassing the interlock system provided for the three shifting sticks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.