Fastening element for connecting a support part to an add-on part

US9011058B2 · kind B2 · utility

Assignee

• A. RAYMOND ET CIE · FR

Inventors

• Martin Busch · Grafing, DE
• Friedrich Silbereisen · Weil am Rhein, DE

Key dates

• Filing date: Jul 18, 2008
• Grant date: Apr 21, 2015
• Expiry date: Apr 3, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B21/086
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A fastening element includes a holding part with a support plate and expanding cheeks, and a locking part guidingly received in the holding part. The expanding cheeks include cantilevered walls formed adjacent the support plate, which are offset radially outwardly with respect to a guide wall of the support plate which guides the locking part. The locking part can be pushed through the support plate substantially without force until it reaches inwardly protruding ramp projections formed on the expanding cheeks, which provide a better lever ratio for spreading the expanding cheeks.