Joints and connections – Articulated members – Pivoted
Patent
1975-09-10
1981-03-31
Kundrat, Andrew V.
Joints and connections
Articulated members
Pivoted
403138, F16C 1106
Patent
active
042590272
ABSTRACT:
A constant torque ball joint employs upper and lower bearing cup pieces made of a self-lubricating material to journal the ball portion of a ball stud with their segmental spherical internal surfaces and also employs a lower elastic material block having a longitudinal elastic modulus Eo of 1.5 to 10 kg/mm.sup.2 to substantially enclose tightly the outer surface of the upper and lower bearing cup pieces. The upper and lower bearing cup pieces and the lower elastic block with the ball portion of the ball stud are mounted whereby a small space is left between the upper and lower bearing cup pieces which are inserted in the socket cavity of a metallic socket joint rod. A metallic cover disc is applied over these inserted members and the end rim of the socket cavity is swaged to crimp the cover disc to substantially completely enclose the bearing cup pieces and the elastic block within the socket cavity and the cover disc. The elastic block is compressed upon assembly at an elastic compression rate of 20% or less.
REFERENCES:
patent: 2424455 (1947-07-01), Graham et al.
patent: 2855232 (1958-10-01), Kozak
patent: 3007728 (1961-11-01), Hoffman
patent: 3282602 (1966-11-01), Willingshofer et al.
patent: 3362735 (1968-01-01), Maxeiner
Applicants Copending Application Serial No. 485,039 Filed 7/1/1974 and the claimed subject matter therein.
Kundrat Andrew V.
Philpitt Fred
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