Automatic parking brake and steering spindle
US6029779A · kind A · utility
3Cited by
12References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Nov 13, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T11/103
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A combination automatic parking brake and steering spindle is provided for use in a self-propelled vehicle carrying an elevatable boom or work platform. The automatic parking brake includes a brake cylinder which also acts as a steering spindle for the vehicle. The parking brake is actuated by a spring carried in the brake cylinder and urges a parking brake pad into contact with a steerable wheel. The parking brake is automatically released when the hydraulic propulsion system for the vehicle is activated and hydraulic pressure enters the brake cylinder compressing the spring and releasing the parking brake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.