Patent ID: 9670966
Date: 2017-06-06
CPC Classifications: F16D

Claim:
1. A tube yoke for a driveshaft assembly, comprising: a tube seat comprising a base, a wall, and two pairs of stiffening ribs, wherein the two pairs of ribs are formed as one unitary body that connect at said base, wherein the stiffening ribs extend between an inner surface of the base and an end surface of the wall and each stiffening rib comprises an outer end portion which is attached to a wall middle portion and a pair of side portions, wherein each stiffening rib decreases in width thickness from adjacent a center portion of said tube seat to where said outer end portion is attached to said wall middle portion; and a pair of lugs outwardly projecting from the tube seat, wherein each lug has a crosshole and the crossholes are aligned so as to have a common centerline; wherein each stiffening rib is oriented at an acute angle with respect to the common centerline of the crossholes, each stiffening rib extends to the end surface of the wall, wherein in each pair one of the stiffening ribs of the pair is oriented opposite the other stiffening rib of the pair, wherein said oppositely oriented stiffening ribs are unitarily connected along said inner surface of said base with a fillet but do not extend across an opening of said wall surrounding each stiffening rib.