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:
Oct. 10, 2023
Filed:
Dec. 12, 2018
Applicant:
Crrc Zhuzhou Locomotive Co., Ltd., Hunan, CN;
Inventors:
Yuan Cao, Hunan, CN;
Yangchun Min, Hunan, CN;
Xihong Jin, Hunan, CN;
Shangqiang Chen, Hunan, CN;
Mingming Li, Hunan, CN;
Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO., LTD., Hunan, CN;
Primary Examiner:
Int. Cl.
CPC ...
B61G 7/14 (2006.01); B61G 9/04 (2006.01); B61G 9/22 (2006.01);
U.S. Cl.
CPC ...
B61G 7/14 (2013.01); B61G 9/04 (2013.01); B61G 9/22 (2013.01);
Abstract
A coupling box of a rail vehicle, including a fixed portion fixedly mounted on a vehicle body and a movable portion connecting to a coupler and draft gear; the movable portion is connected to an inner end of the fixed portion by means of a constant-force connecting member, the constant-force connecting member is broken when the coupler and draft gear pushes the movable portion to move inwardly at the time of a collision, so that the movable portion and the fixed portion are able to be separated from each other.