Patent ID: 6125767
Filing Date: 2000-10-03
Classification: B61F

Abstract:
A sideframe for use in a railway car truck,said sideframe of a generally unitary cast steel structure comprising an elongated top compression member extending longitudinally,two end sections each extending longitudinally from an end of said top compression member and each forming a pedestal jaw,two diagonal tension members each extending at an acute angle with said top compression member from near said end of said top compression member,a bottom member extending longitudinally and joining said diagonal tension members at a lower end of each diagonal tension member,two column members longitudinally spaced from each other and extending vertically between said bottom member and said top compression member,said column members forming a bolster opening therebetween,each of said column members having a closed structural cross section comprised of a main section extending laterally across the width of said column member, two wear plate support sections each protruding longitudinally inwardly toward said bolster opening from a lateral end of said main section, and two sidewalls each protruding longitudinally outwardly from a lateral end of said main section, each of said sidewalls extending vertically for nearly the entire height of said column member,and a first support rib comprising a generally planar section extending laterally outwardly from said main section and from adjoining sections of said two sidewalls of said column member,a second support rib comprising a generally planar section extending laterally outwardly from said main section and from adjoining sections of said two sidewalls of said column member, said second support rib spaced vertically below said first support rib,two vertically aligned wear plate bolt openings in said main section of said column member,with said first support rib vertically aligned approximately between said wear plate bolt openings,and a generally rectangular, generally flat wear plate held against said main section of said column member by bolts that extend through said wear plate bolt openings,and wherein said second support rib is vertically aligned with a bottom edge of said wear plate.