The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2025
Filed:
Nov. 11, 2020
Crrc Nanjing Puzhen Co., Ltd., Nanjing, CN;
Yanpin Du, Nanjing, CN;
Liang Zhu, Nanjing, CN;
Yanlin Jiang, Nanjing, CN;
Xiaoyu Wang, Nanjing, CN;
Yonggang Niu, Nanjing, CN;
Qunfa Shan, Nanjing, CN;
Sheng Zhang, Nanjing, CN;
CRRC Nanjing Puzhen Co., Ltd., Nanjing, CN;
Abstract
An underframe boundary beam connecting structure suitable for a railway vehicle with a drum-shaped vehicle body is provided. An underframe boundary beam is a through long roll bending piece, a section of the through long roll bending piece is of a channel structure, and has a side face, an upper wing face, and a lower wing face. The side face has an inclination angle consistent with a side wall plate, an upper end of an outer side of the side face is provided with a concave platen, and the side wall plate is lapped on the concave platen and fixed by a butt welding; an inner end of the lower wing face is provided with a downwards vertical flanging, a vertical plate is welded and fixed between the upper wing face and the lower wing face.