Three-gear position type transmission mechanism for a remote-control toy car
US6581487B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 7, 2002 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Feb 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1926
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A three-gear position type transmission mechanism for a remote control toy car is constructed to include a driven gear wheel, a transmission shaft, three transmission gear wheels mounted on the transmission shaft, and three idle gears mounted on a center shaft and respectively meshed with the transmission gear wheels. The third transmission gear wheel is rotated with the idle gear set and the transmission shaft when said driven gear wheel rotated at a low speed. The second transmission gear is rotated with the third transmission gear and transmission shaft and the second idle gear by means of the action of a centrifugal force-activated clutch when the driven gear wheel accelerated to a medium speed. The first, second and third transmission gears are rotated with the first, second and third idle gear and the transmission shaft by means of the action of a centrifugal force-activated clutch when the driven gear wheel accelerated to a high speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.