Screw connection for hinge parts

US7010831B1 · kind B1 · utility

Assignee

• OBE OHNMACHT & BAUMGÄRTNER GMBH & CO. KG · DE

Inventors

• Klaus Beck · Oberkochen, DE
• Rainer Wagner · Martinsheim, DE

Key dates

• Filing date: Jul 6, 2000
• Grant date: Mar 14, 2006
• Expiry date: Jun 6, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T403/32918
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A screw connection for hinge parts, especially of an eyeglass frame, comprising a screw that interconnects the hinge parts that engage one inside the other and that have an upper hinge lobe, a lower hinge lobe, and at least one middle hinge lobe, the screw having a screw head and a screw shank that extends through a first through opening in the upper hinge lobe and extends through a second through opening in the middle hinge lobe, with a thread permitting the screw shank to be screwed into the lower hinge lobe, and comprising a sleeve that surrounds the screw shank, has elastic properties, and interacts with the upper and middle hinge lobes when the screw is in a screwed-in state, whereby the diameter (D2) of the second through opening is less than or equal to the diameter (D1) of the first through opening. The screw connection is distinguished by the fact that the screw (25) has at least one bearing surface for the sleeve (33) with at least one engaging surface (32) that is aligned in the direction of movement in which the screw (25) is unscrewed.