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. 02, 2018
Filed:
Jun. 30, 2014
Qiqihar Railway Rolling Stock Co., Ltd. Dalian R&d Centre, Dalian, Liaoning, CN;
Qiqihar Railway Rolling Stock Co., Ltd, Qiqihar, Heilongjiang, CN;
Shifeng Xu, Qiqihar, CN;
Derong Zhang, Qiqihar, CN;
Yanchen Zhang, Qiqihar, CN;
Haibin Hu, Qiqihar, CN;
Wendong Shao, Qiqihar, CN;
Lidong Li, Qiqihar, CN;
Shihui Duan, Qiqihar, CN;
Pingwei Yin, Qiqihar, CN;
Yufeng Cao, Qiqihar, CN;
CRRC Qiqihar Rolling Stock Co., Ltd., Dalian, CN;
Abstract
An axle box suspension positioning device for a railway vehicle is provided, which includes a guide column assembly. The guide column assembly includes a fixed end connected to a frame of the railway vehicle, and a free end which is extendable and retractable from an opening of the axle box. An elastic positioning component is provided in the opening, and the elastic positioning component limits a movement of the free end along a running direction of the vehicle with respect to the frame. The arrangement of the elastic positioning component enables the axle box suspension positioning device to have a large positioning rigidity. A bogie having the axle box suspension positioning device is also provided.