Combination of a screw member, a washer and a sleeve and also a method of producing such a combination

US7686554B2 · kind B2 · utility

Assignee

• ElringKlinger AG · DE

Inventors

• Erich Amann · Rottenburg am Neckar, DE
• Peter Böhringer · Westerburg, DE

Key dates

• Filing date: Oct 9, 2007
• Grant date: Mar 30, 2010
• Expiry date: Oct 9, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49948
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In order to produce a combination of a screw member comprising a screw head, a threaded portion and a shank portion which is arranged between the screw head and the threaded portion and has an external diameter that is smaller than the external diameter of the threaded portion, a washer incorporating a passage opening the diameter of which is smaller than the external diameter of the threaded portion, and a sleeve the internal diameter of which is greater than the external diameter of the threaded portion, whereby said combination can be produced in a simple manner but nevertheless ensures that the sleeve and the washer are held securely on the screw member, it is proposed that the sleeve have at least one projection which engages in a recess provided in the washer, wherein the sleeve is pressed against the washer in such a manner that the sleeve and the washer are connected together and held captive on the screw member.