Steerable trailer drive assembly
US7328761B1 · kind B1 · utility
15Cited by
12References
8Claims
0Family size
Inventor
Key dates
| Filing date | Aug 11, 2005 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Feb 25, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D59/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steerable drive assembly for local movement of a trailer includes an electric motor drive wheel unit having a drive wheel connected to the output shaft of a gear reduction unit. A steering shaft is connected to the drive wheel unit and an upper operating handle. The steering shaft is rotatably supported by a sleeve assembly that is attached to the tongue of the trailer. The operating handle includes a throttle coupled with the electric motor through a variable speed control for providing progressing power to the motor to enable speed variation without wheel slippage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.