Chain drive or return arrangement and chain assembly and sprocket employed therein

US8038558B2 · kind B2 · utility

Assignee

• DBT GMBH · DE

Inventors

• Adam Klabisch · Dortmund, DE
• Gerhard Merten · L Atkinson Lane, DE

Key dates

• Filing date: Aug 17, 2006
• Grant date: Oct 18, 2011
• Expiry date: Mar 31, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H55/303
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Chain return arrangement and sprocket and chain assembly employed therein with the bow flanks of the horizontal chain links (1) of the chain assembly (10) exhibiting a concave trough at least below an equatorial line (7) and the chain link pockets (52) of the sprocket (50) that receive the horizontal chain links at their tooth flanks (53) in the contact areas (55) to the chain links (1) having a convex crown shape to match the troughed bow flank. This significantly reduces the surface pressures between the two parts.