Spring applied automative parking brake system
US5601162A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1994 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Dec 13, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/746
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A spring applied parking brake system for a vehicle including a housing connected with the vehicle chassis, a pivot arm assembly for connection with the parking brake cable of the vehicle, a main spring biasing the pivot arm assembly toward a brake-applied position relative to the housing, a spring compression assembly operable to displace the pivot arm assembly toward a brake-released position relative to the housing, a retaining device normally retaining the pivot arm assembly in the brake-released position, and a release device for releasing the retaining assembly, whereby the pivot arm assembly is released for displacement by the main spring toward the brake-applied position. Preferably, the retaining device includes a helical clutch spring mounted concentrically on a rotatable hub portion of the pivot arm assembly and the compression assembly includes a hydraulic or pneumatic pump and piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.