Master cylinder for a hydraulic vehicle braking system with improved return spring restraining

US6519940B2 · kind B2 · utility

Assignee

• Lucas Industries plc · GB

Inventors

• Hans Lange · Worms, DE
• Peter Linde · Hamburg, DE
• Martin Struschka · Braubach, DE
• Hartmut Unterberg · Koblenz, DE

Key dates

• Filing date: Jul 17, 2001
• Grant date: Feb 18, 2003
• Expiry date: Jul 17, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T11/20
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A master cylinder includes a restraining device arranged between the first and second pistons for preventing the return spring from being compressed and expanded beyond a certain extent. The restraining device includes a first, substantially sleeve-shaped component and a second, substantially pin-shaped component. The pin-shaped component includes a flange which projects radially outwards. The sleeve-shaped component includes a first receiving flange which positively interacts with the flange of the pin-shaped component. The sleeve-shaped component includes at least one introduction opening which enables the flange on the pin-shaped component to be laterally introduced into the sleeve-shaped component. The end of the sleeve-shaped component includes a second receiving flange which positively interacts with a flanged projection on the second piston which projects radially outwards. The sleeve-shaped component includes the at least one introduction opening which enables the flange provided on the second piston to be laterally introduced into the sleeve-shaped component.