发明申请
- 专利标题: RAILCAR BOGIE
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申请号: US14759627申请日: 2014-01-06
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公开(公告)号: US20150344047A1公开(公告)日: 2015-12-03
- 发明人: Takehiro NISHIMURA , Shunichi NAKAO , Yasufumi OKUMURA , Shintaro ANDO
- 申请人: KAWASAKI JUKOGYO KABASHIKI KAISHA
- 申请人地址: JP Kobe-shi, Hyogo
- 专利权人: KAWASAKI JUKOGYO KABUSHIKI KAISHA
- 当前专利权人: KAWASAKI JUKOGYO KABUSHIKI KAISHA
- 当前专利权人地址: JP Kobe-shi, Hyogo
- 优先权: JP2013-002735 20130110
- 国际申请: PCT/JP2014/000006 WO 20140106
- 主分类号: B61F5/30
- IPC分类号: B61F5/30
摘要:
A railcar bogie includes: a cross-beam supporting a carbody; pair of axles at both cross-beam sides in car longitudinal direction and extending in car-width direction; bearings at both car-width direction sides of each axle and rotatably supporting axles; axle-boxes accommodating respective bearings; plate-springs supporting both car-width direction end-portions of the cross-beam and extending in car longitudinal direction, both car longitudinal direction end-portions of each plate-springs supported by axle-boxes; pressing members at both car-width direction end-portions of the cross-beam placed on respective car longitudinal direction middle-portions of plate-springs, lower surface of a portion of each pressing member having a convex downward circular-arc shape in side-view, the portion pressing the plate-spring, a middle-portion upper surface of each plate-spring having convex downward circular-arc shape in side-view, the middle-portion pressed by the pressing member, and a lower surface curvature of the pressing member larger than the upper surface curvature of the middle plate-spring portion.
公开/授权文献
- US09802627B2 Railcar bogie 公开/授权日:2017-10-31
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