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:
Jul. 04, 2023
Filed:
May. 26, 2020
Meishan Crrc Fastening System Co., Ltd, Meishan, CN;
Shibo Wang, Meishan, CN;
Yu Liu, Meishan, CN;
Tao Deng, Meishan, CN;
Yunlong Jia, Meishan, CN;
Xiangyun Zhao, Meishan, CN;
Chuanqi Li, Meishan, CN;
Xu He, Meishan, CN;
Wei Li, Meishan, CN;
Long Guo, Meishan, CN;
MEISHAN CRRC FASTENING SYSTEM CO., LTD, Sichuan, CN;
Abstract
A single groove single-sided fastener comprises: a rivet consisting of a rivet head, a polish rod, a locking groove, a tail pulling groove and a tail tooth in sequence, and a lantern ring consisting of a sleeve and a dead head; a tail of the rivet is of a single groove short-tail structure, a ratio of a length of the tail pulling groove to a total length of the tail tooth is 0.1˜1.5, an included angle between a bottom generatrix of the tail pulling groove and an axis of the rivet is −30°˜0°, two axial ends of the bottom of the tail pulling groove and the tail of the tail tooth are of a fillet transition structure, a ratio of a length of a straight part of the tail tooth to the total length of the tail tooth is 0.1˜1.