Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Torque transmitted via intermeshing teeth on drive and...
Patent
1990-05-09
1991-04-16
Hannon, Thomas R.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Coupling accommodates drive between members having...
Torque transmitted via intermeshing teeth on drive and...
F16D 318
Patent
active
050078801
ABSTRACT:
A joint adaptable to a wide range of speed and torque conditions and articulable to a maximum predetermined angle .phi. of up to 30.degree. or greater includes a cylindrical socket with a major inner diameter complimentary to a predetermined diameter `d` and a preselected number `n` of longitudinal internal splines integrally and uniformly extending inwardly from the major diameter and centered on planes cyclically angularly disposed through a longitudinal axis of the socket and a ball with an exterior surface defined by rotation of a first circular arc about a longitudinal axis of the ball. The first arc point of origin is along a line defined by the intersection of a plane containing the first arc and the ball axis with a plane passing transversely through a midpoint on the ball axis. The first arc radius is determined as `r.sub.ball `=d (1.25-3 Tan .phi./2+2.25 Tan.sup.2 .phi./2)1/2 and the first arc point of origin is spaced from the ball axis by a distance `x.sub.ball `=d/2. A preselected number `n` of external splines with an exterior surface defined by rotation of a second circular arc about the ball axis integrally outwardly extend from the ball centered on planes cyclically angularly disposed through the ball axis. The second arc point of origin is also along the above identified line and its radius is determined as `r.sub.spline `=d (1-Tan .phi./2). The second arc point of origin is spaced from the axis by a distance `x.sub.spline `=d (0.50-Tan .phi./2). The exterior edges of adjacent external splines are spaced at a constant distance and are meshably insertable between the internal splines when the ball and socket longitudinal axes are aligned.
REFERENCES:
patent: 2951396 (1960-09-01), Kooistra
patent: 3054275 (1962-09-01), Ongaro
patent: 3142972 (1964-08-01), Spaulding
patent: 3826108 (1974-07-01), Bradel, Jr.
patent: 3940946 (1976-03-01), Anderson
patent: 4132090 (1979-01-01), McDermott
patent: 4464141 (1984-08-01), Brown
patent: 4824418 (1989-04-01), Taubert
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