- 专利标题: Railway car truck friction shoe
-
申请号: US15453515申请日: 2017-03-08
-
公开(公告)号: US10589759B2公开(公告)日: 2020-03-17
- 发明人: John Coseglia
- 申请人: Amsted Rail Company, Inc.
- 申请人地址: US IL Chicago
- 专利权人: AMSTED RAIL COMPANY, INC.
- 当前专利权人: AMSTED RAIL COMPANY, INC.
- 当前专利权人地址: US IL Chicago
- 代理机构: The Small Patent Law Group, LLC
- 代理商 Joseph M. Butscher
- 主分类号: B61F5/12
- IPC分类号: B61F5/12 ; B61F3/02 ; B61F5/06
摘要:
A friction shoe includes a bottom base engaging and supported by a pair of support springs, and a sloped wall engaging the sloped support face of a bolster. The bottom base includes a cylindrical spring lug that has a center opening that extends through the spring lug. The bottom surface of the spring lug is flat and smooth and is configured to engage an additional concentrically nested support spring. The additional spring increases the force between the vertical support face of the wedge and the vertical wear plate of the side frame.
公开/授权文献
- US20180257676A1 RAILWAY CAR TRUCK FRICTION SHOE 公开/授权日:2018-09-13