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. 11, 2002
Filed:
May. 05, 2000
Michio Sebata, Kudamatsu, JP;
Toshiaki Makino, Kudamatsu, JP;
Motomi Hiraishi, Kudamatsu, JP;
Minoru Nakamura, Kudamatsu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
On an outer periphery of a link for connecting a member car body and a bogie car frame vessel is provided and into which particle shaped members are inserted. A rotation vibration generated from a drive system of a running electric motor a transmission apparatus and a shaft coupling is transmitted to the link The vibration energy generated at link is converted to the kinetic energy in response to the collision of the particle-shaped members contained in the vessel so that the vibration at the link is reduced. Accordingly, the propagation of the vibration to a car body can be restrained. The particle-shaped members can be inserted into a cylindrical portion of the link Further, the particle-shaped members can be inserted movably into a column In a railway vehicle having a bogie car, the vibration caused by the unbalance of the drive system can be restrained and the noise in a car accompanied with the vibration can be reduced.