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:
Apr. 23, 2024
Filed:
Sep. 30, 2019
Crrc Nanjing Puzhen Co., Ltd., Nanjing, CN;
Juxing Liang, Nanjing, CN;
Xingwen Wang, Nanjing, CN;
Yunchuan Li, Nanjing, CN;
Yongjun Li, Nanjing, CN;
Wenjie Huang, Nanjing, CN;
Changping Zhu, Nanjing, CN;
CRRC Nanjing Puzhen Co., Ltd., Nanjing, CN;
Abstract
An underframe end structure without a bolster beam for a rail vehicle, including an underframe end beam, an underframe edge beam, a coupler mounting base, coupler support beams, and oblique support beams, where the front of the coupler mounting base is connected to the underframe end beam through the oblique support beams, two sides of the coupler mounting base are connected to the underframe edge beam through the coupler support beams, so that quadrilateral frame structures are respectively formed on the two sides of the coupler mounting base, the oblique support beams form an included angle of 55° to 80° with a forward opening, and the coupler support beams form an included angle of 120° to 140° with a backward opening.