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:
Jun. 20, 2006
Filed:
Aug. 18, 2003
Hideo Takai, Hikari, JP;
Motomi Hiraishi, Kudamatsu, JP;
Minoru Nakamura, Kudamatsu, JP;
Katsuyuki Iwasaki, Kudamatsu, JP;
Hideo Takai, Hikari, JP;
Motomi Hiraishi, Kudamatsu, JP;
Minoru Nakamura, Kudamatsu, JP;
Katsuyuki Iwasaki, Kudamatsu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A subframeis connected via a vibration isolatorto a floorof a railway car body, and the subframehas a center pinprotruding downward therefrom and connected to a bogie. The subframeis connected to a coupling device, and is disposed so as to come into contact with stopperson side beamsof the car body. According to this structure, since the coupling deviceis not directly connected to the car body, there is no need to weld a rigid member to the bottom surface of the floor, and the railway car body can be manufactured easily. Moreover, since the subframeis connected to the floorvia a vibration isolator, less noise is transmitted to the car body. Power is transmitted from the coupling deviceor bogieto side beams, so the structure of the car body can be simplified.