Transmission mechanism comprising a clutch and a gear box having a plurality of speed ratios
US4344513A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | May 30, 1980 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | May 30, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/7105
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The mechanism comprises a clutch and a gear box having a plurality of speed ratios disposed between a motor and receiving means. Means are provided for acting on the speed of the motor so as to bring the input element and the output element of the clutch to substantially the same speed before the engagement of the clutch. The mechanism further comprises in combination a detector of the speed of the motor, a detector of the speed of the receiving means, a numeric calculator of the theoretical speed of one of these components as a function of the speed of the other component and of the engaged speed ratio of the gear box, and a comparator of the calculated speed and the measured speed which has its output connected to the means for acting on the speed of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.