Universal joint
AssigneeUni-Cardan Aktiengesellschaft
InventorWerner Krude
Life of this patent
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Abstract
A universal joint has an outer joint member with circular grooves in the inner surface of a spherical cavity therein and an inner joint member is positioned within the cavity. The outer surface of the inner joint member is also provided with grooves and torque transmitting balls are received in corresponding grooves of the outer and inner joint members. The centerlines of the two outer joint member circular grooves are located in planes which are parallel with each other and parallel to the axis of the outer joint member and these planes are positioned equidistantly on opposite sides of the rotary axis. The inner joint member has partially circular or arcuate grooves arranged in pairs such that their centerlines extend in planes perpendicular to the planes of the outer joint member grooves.
Claims5
A universal joint comprising a hollow joint member having a spherical inner surface therein and there being two circular grooves in said inner surface, an inner joint member within said outer joint member and having an outer surface with recesses therein, balls jointly received in said outer joint member grooves and said inner member recesses to transmit torque therebetween, the centerlines of said outer member grooves defining first planes which are parallel to each other and parallel with the rotary axis of the outer joint member, said first planes being positioned on opposite sides of said rotary axis and spaced equidistantly therefrom, said inner member recess having means for guiding movements of the balls therein along centerlines in second planes perpendicular to said first planes.
Dependencies are inferred from the claim text.