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:
Apr. 22, 2008
Filed:
Aug. 26, 2005
Kenta Konishi, Kudamatsu, JP;
Eiji Harada, Kudamatsu, JP;
Kenta Konishi, Kudamatsu, JP;
Eiji Harada, Kudamatsu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The invention provides an overload detector with a simplified system configuration to be applied to a railway car having a connecting bogie. A connecting bogie(two axle bogie) having front and rear wheelsC andD are disposed to extend between a first car Cand a second car C. The front and rear cars Cand Care supported via air springsA andB on the connecting bogie. The other end of the car Cis supported via air springsA andB on a bogie(two axle bogie) having front and rear wheelsC andD. The other end of the car Cis supported via air springsA andB on a bogie(two axle bogie) having front and rear wheelsC andD. Pneumoelectric convertersandare disposed along paths of pneumatic pipingsand, and the inner pressure of air springsA andB is converted into an inner pressure signal AS, and the inner pressure Pof the air springsA andB is converted into an inner pressure signal AS. The inner pressure signals ASand ASoutput from the pneumoelectric convertersandare input to a computing processor. Overload is determined based on signals ASand AS