Tensioning and damping element for endless chain drive, especially for roller chain drives

US9670995B2 · kind B2 · utility

Assignee

• EBERT Kettenspanntechnik GmbH · DE

Inventors

• Siegfried Ebert · Camburg, DE
• Frank Ebert · Memmelsdorf, DE
• Hartmut Meier · Schkeuditz, DE
• Horst Tanzmann · Schkeuditz, DE

Key dates

• Filing date: Feb 20, 2015
• Grant date: Jun 6, 2017
• Expiry date: Jul 24, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2007/0819
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A tensioning and damping element for endless chain drives, especially for roller chain drives, can be used for endless chain drives, which are to be tensioned diametrically. The material is an elastic plastic. All told, the known tensioning and damping elements, in conjunction with the wear of the chain, the load changing phases, as well as the reversing according to the degree of deformation, have the disadvantage of a phased running irregularity, an increased running noise and of wear-intensive areas in the toothed rim. An element with a ring part and a toothed rim of arc-shaped teeth with, in each case, axially opposite bulges in the roller-seating and, between these, roller-seating depressions, grooves, which are disposed peripherally between the ring part and the bulges, an extended pitch and extended roller-seatings with the advantageous profile shape similar to a semielliptical curve lying on the root circle.