Combination yoke and elastomeric draft gear having a friction mechanism

US8096431B2 · kind B2 · utility

Assignee

• WABTEC HOLDING CORP. · US

Inventors

• Ronald J. Sprainis · Springfield, US
• Michael E. Ring · Saint John, US
• Bradley Anderson · Des Plaines, US
• Jonathon Marlow · Hobart, US
• David J. Meyer · Fort Lauderdale, US
• Michael J. Moriarity · Lansing, US
• Wajih Kanjo · Lockport, US

Key dates

• Filing date: May 1, 2008
• Grant date: Jan 17, 2012
• Expiry date: Feb 25, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49837
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A draft gear assembly for cushioning buff and draft dynamic impact forces being applied to a center sill member of the railway vehicle during make-up of a train consist and in-track operation of such train consist includes a resilient cushioning member and a friction mechanism both axially mounted within the yoke with the friction mechanism positioned between the front end of the resilient cushioning member and the front coupler follower. A pair of the resilient cushioning members with the friction mechanism mounted therebetween may also be provided.