Homokinetic joint
OwnerAndrea Bellomoinventor
Life of this patent
Estimating the term…
Abstract
A constant velocity universal or universal and sliding joint includes an inner element, an outer element and an even number of balls engaged by opposite and crossing grooves formed on the two elements. The axial sliding of one element with respect to the other is prevented or limited at the ends of the slip by means of the mating contact of two spherical surfaces formed or put on the ends of the inner element with two spherical surfaces formed on cups fixed to the ends of the outer element.
Claims5
A homokinetic universal joint comprising an inner element, an outer element and an even number of driving balls, each ball being engaged and guided solely by two opposite grooves symmetrically crossing on the bisector plane of the angle between the axes of the shafts connected by the joint, one groove formed on the inner element and the other groove on the outer element, characterized by the fact that portions of two spherical surfaces (14, 15) are formed on the ends of the inner element with their spherical centers (16, 17) on the axis of the inner element, each spaced towards the opposite spherical surface, and two cups are connected to the ends of the outer element, portions of two spherical surfaces (19, 20) being formed on the said cups with their spherical centers (17, 16) on the axis of the outer element, each spaced towards the respective cup, the axial relative sliding of the two elements being limited by the contact and the mating of the said spherical surfaces formed on the inner element with the said spherical surfaces formed on the cups connected to the outer element.
A homokinetic universal joint comprising an inner element, an outer element and an even number of driving balls, each ball being engaged and guided solely by two opposite grooves symmetrically crossing on the bisector plane of the angle between the axes of the shafts connected by the joint, one groove formed on the inner element and the other groove on the outer element, characterized by the fact that a portion of a spherical surface (14') is formed on the inner element, a portion of a second spherical surface (15') is formed on a bottom (21) part on one end of the inner element wherein their spherical centers are on the axis of the inner element, and two cups are connected to the ends of the outer element, two spherical surfaces (19', 20') being partly formed on the said cups with their spherical centers on the axis of the outer element, the axial relative sliding of the two elements being limited by the contact and the mating of said spherical surfaces of the inner element with the said spherical surfaces of the outer element.
A universal joint comprising:
- first means for rotation about a first axis;
- second means for rotation about a second axis;
- said first means forming an outer portion of said universal joint and said second means forming an inner portion of said universal joint;
- means for transmitting torque between said first and second rotating means;
- said first means having a hollow portion with spherical cup shaped surfaces internal to said hollow portion for limiting relative sliding movement between said first and second rotating means;
- said second means having a spherical hub portion symmetric with said second axis, located within said hollow portion of said first rotating means;
- said first means having an even number of grooves within said hollow portion, located evenly around said first axis and each groove lying in a separate plane parallel to said first axis;
- said second means having an even number of grooves on the surface of said spherical hub portion located evenly around said second axis and each groove lying in a separate plane parallel to said second axis, wherein each groove on the surface of said spherical hub portion, corresponds to a groove within said hollow portion of said first rotating means;
- said torque transmitting means consisting of a spherical ball located within each set of corresponding grooves of said first and second rotating means.
Dependencies are inferred from the claim text.