Machine element or mechanism – Gearing – Directly cooperating gears
Patent
1994-02-02
1996-03-12
Bonck, Rodney H.
Machine element or mechanism
Gearing
Directly cooperating gears
74 84R, 74415, F16H 112
Patent
active
054976715
ABSTRACT:
A gear combination is disclosed in which a spherical body has a plurality of grooves defined therein into which a pin gear enmeshes. Substantially all the pins on the pin gear engage the grooves in the spherical body at all times. The spherical body rotates about a first axis and the pin gear rotates about a second axis. The grooves are cut into the spherical body by a computer-controlled milling machine. The groove is endless or eventually returns to its beginning position. The axis of the milling tool may be oriented at any angle with respect to the axis of the lathe head, since the resulting motion of the milling tool necessarily cuts whatever lissajous shape is dictated by the relative periodic motions of the lathe head and milling table. The pins in the pin gear thus follow the grooves defined in the spherical body so that the rotation of the pin gear relative to the spherical body mimics the relative motions of the lathe head and milling table when the spherical body was cut.
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Bonck Rodney H.
Dawes Daniel L.
Kim Chong H.
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