Fastener assembly including a screw element and a supporting element

US6517301B2 · kind B2 · utility

Assignee

• KAMAX-Werke Rudolf Kellermann GmbH & Co. KG · DE

Inventors

• Gunther Hartmann · Munich, DE
• Wolfgang Sommer · Gemünden (Wohra), DE
• Frank Wagner · Reiskirchen, DE

Key dates

• Filing date: Jul 10, 2001
• Grant date: Feb 11, 2003
• Expiry date: Jul 10, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B39/282
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A fastener assembly for a wheel of a vehicle includes a screw element including a threaded portion, a first supporting surface and a number of first wedge shaped teeth being located at the supporting surface. A supporting element is rotatably connected to the screw element. The supporting element includes a second supporting surface and a number of second wedge shaped teeth being associated with the first wedge shaped teeth. The first wedge shaped teeth are located at the first supporting surface to face the supporting element and the second wedge shaped teeth are located at the second supporting surface to face the screw element. The first and second wedge shaped teeth are designed and arranged in a way to realize positive engagement between the screw element and the supporting element when the fastener assembly is being tightened and to make the first and second wedge shaped teeth slide on each other and to press the screw element and the supporting element apart when the fastener assembly is being loosened.