Low-floor railcar bogie and low-floor railcar including the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 5, 2014
Grant Date -
Mar 15, 2012
app pub date -
May 26, 2010
filing date -
May 26, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A low-floor railcar bogie of the present invention includes: a bogie frame including a pair of left and right side beams and a cross beam, each of the left and right side beams including a front portion, an intermediate portion, and a rear portion in a vehicle longitudinal direction, the intermediate portion being located at a position lower than the front portion and the rear portion, the cross beam connecting the intermediate portions of the pair of side beams each other; a pair of front and rear axle beams formed separately from the bogie frame, respectively located on a front side and rear side of the cross beam, and each extending in a vehicle width direction; independent wheels rotatably supported by left and right side portions of the axle beams, respectively; primary suspensions configured to elastically couple the front and rear portions of the side beams and the left and right side portions of the axle beams; and secondary suspensions provided on upper surfaces of the front and rear portions of the side beams.
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