Drawbar for lightweight drawbar assembly

Details Drawbar for lightweight drawbar assembly Drawbar for lightweight drawbar assembly

1998-09-17

2000-12-05

Morano, S. Joseph

Railway draft appliances

Cushioned

Drawbars

213 61, 213 75R, B61G 920

Patent

active

061554421

ABSTRACT:
A drawbar for a slackless drawbar coupler assembly which includes a shank portion extending to a truncated butt end portion defining a convex, hemispherical buff load bearing surface adapted to abut against a concave, hemispherical buff load bearing surface on a rear support block. A generally rectangular aperture is provided through the butt end portion at the axis of said hemispherical buff load bearing surface which is adapted to receive a drawbar pivot pin and a three-dimensional bearing block, with the bearing block having a half-cylindrical surface on one side adapted to engage against a cylindrical side surface of the drawbar pivot pin, and a flat, generally rectangular surface opposite the cylindrical surface which is adapted to abut against a flat side of the rectangular aperture, to thereby bias the bearing block against the drawbar pivot pin such that the drawbar is pivotally attached to the pivot pin.

REFERENCES:
patent: 5080242 (1992-01-01), Steffen et al.
patent: 5096075 (1992-03-01), Glover
patent: 5207718 (1993-05-01), Glover et al.

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