Combined device having device for connecting cross beam for receiving pivot pins and two lower longitudinal beams of coach body for rail vehicle

US11505219B2 · kind B2 · utility

Assignees

• CRRC QINGDAO SIFANG CO., LTD. · CN
• CG RAIL—CHINESISCH-DEUTSCHES FORSCHUNGS- UND ENTWICKLUNGSZENTRUM FÜR BAHN- UND VERKEHRSTECHNIK DRESDEN GMBH · DE

Inventors

• Jianying LIANG · Foshan, CN
• Chongcheng Zhong · Shandong, CN
• Jiajie He · Beijing, CN
• Junhai Liang · Shandong, CN
• Jian Du · Nanhu, CN
• Dawei RUAN · Shandong, CN
• Werner Hufenbach · Dresden, DE
• Andreas ULBRICHT · Dresden, DE

Key dates

• Filing date: Feb 7, 2018
• Grant date: Nov 22, 2022
• Expiry date: Aug 6, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T30/00
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A device for connecting a cross member for receiving pivot pins on two lower longitudinal members of a car body for a rail vehicle. The cross member has a transversal part that connects the two longitudinal members to each other in the region of the connection, and a longitudinal part that extends to the closest car front. The lower longitudinal members extend over the complete length of the car body and consist of multi-chamber hollow profiles made of a fibre composite material. The number of chambers of the multi-chamber hollow profile of each longitudinal member is reduced in the region of the connection such that the wall material of at least one chamber was removed in such a way that the webs to the adjacent chambers are exposed. At these places, load-introducing elements engage, to which load-introducing elements the cross member is attached.