Eccentric tensioning device

US7918755B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Rainer Baumuller · Herzogenaurach, DE
• Roland Arneth · Eggolsheim, DE
• Niels Flamig · Prüm, DE

Key dates

• Filing date: Apr 5, 2010
• Grant date: Apr 5, 2011
• Expiry date: Apr 5, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An eccentric tensioning device for tensioning a traction means is provided. The eccentric tensioning device includes a track roller device having a running disk and a rolling bearing, a work eccentric for supporting the track roller device, the work eccentric being supported on an adjustment eccentric, a single torsion spring for pretensioning the work eccentric, and a fixing device for securing the work eccentric in a mounting position in which the torsion spring is located in a pretensioned state. The fixing device is positionable on a flange surface upon which the eccentric tensioning device is mountable during attachment, in which the running disk is forced radially relative to the rotating axis of the rolling bearing against the associated traction means under effect of the work eccentric, and a free switching path is traversed through an axial play being overcome against an axial force applied solely by the torsion spring.