Railway truck bolster friction assembly
AssigneeA. Stucki Company
InventorDonald Wiebe
Life of this patent
Estimating the term…
Abstract
A railway freight truck bolster friction assembly and more particularly improved friction assemblies of elastomeric material which are adapted to be captively retained intermediate an axial end portion of a bolster member and an adjacent side frame.
Claims12
A railway truck bolster friction assembly adapted to be captively retained within a pocket of an elongated truck bolster member which extends between spaced elongated side frame members of a railway truck vehicle comprising:
- elastomeric friction means adapted to have a first portion thereof in communication with adjacent surfaces of such a pocket and a second portion thereof in frictional engagement with adjacent portions of wearing surface means of a column guide of a respective one of such side frame members, said second portion being spaced transversly outwardly, with respect to the longitudinal axis of such a bolster member, from such a pocket and said first portion extending transversly inwardly from said second portion;
- and said elastomeric friction means being operative to deform and maintain said frictional engagement, without slipping between adjacent engaging surfaces, during at least initial vertical and transverse movements of such a bolster member with respect to such a respective one of such side frame members.
In a railway truck assembly having an elongated bolster member which is supported adjacent the axial ends thereof on spring groups seated on spaced elongated side frame members and having bolster member friction assemblies positioned intermediate the bolster member and respective column guides of the side frame members, the improvement comprising:
- said friction assemblies each having elastomeric friction means received within a respective pocket of said bolster member, said elastomeric friction means having a first portion thereof in communication with adjacent surfaces of said pocket and a second portion thereof in frictional engagement with a wearing surface means of said column guide, said second portion being spaced transversely outwardly, with respect to the longitudinal axis of said bolster member, from said pocket and said first portion extending transversly inwardly from said second portion;
- and said elastomeric friction means being operative to deform and maintain said frictional engagement, without slipping between adjacent engaging surfaces, during at least initial vertical and transverse movements of said bolster member with respect to said side frame members.
Dependencies are inferred from the claim text.