Machine element or mechanism – Gearing
Patent
1984-12-21
1990-03-20
Braun, Leslie A.
Machine element or mechanism
Gearing
384532, F16H 3300
Patent
active
049090984
ABSTRACT:
A harmonic drive apparatus comprises a circular spline which has internal spline teeth and which is rotatable around a rotational axis, a flexible cylindrical flexspline which is concentrically disposed within the circular spline and which has external spline teeth, the number of flexspline external teeth being less than the number of internal teeth of the circular spline, a wave generator disposed within the flexspline for flexing the flexspline in the radial direction thereof so as to locally engage the flexspline external teeth with the internal teeth of the circular spline, and a multi-row ball bearing flexible in the radial direction thereof which has balls equally spaced along the circumferential direction of the wave generator and which is disposed between the wave generator and the flexspline, the balls being disposed in a plurality of circumferential lines which are separated from one another along the axial direction of the wave generator, the balls in each circumferential line being disposed between the balls in the other circumferential lines with respect to the circumferential direction of the wave generator.
REFERENCES:
patent: 970132 (1910-09-01), Sonnberg
patent: 980932 (1911-01-01), Eitner
patent: 1071693 (1913-09-01), Bright
patent: 1155185 (1915-09-01), Winkler
patent: 1168937 (1916-01-01), Eitner
patent: 1242502 (1917-10-01), Wingquist
patent: 1303479 (1919-05-01), Hultgren
patent: 1329089 (1920-01-01), Lindman
patent: 2932986 (1960-04-01), Musser
patent: 2943495 (1960-07-01), Musser
patent: 3091979 (1963-06-01), Schaefer
patent: 3187862 (1965-06-01), Musser
patent: 3202019 (1965-08-01), Faxen
patent: 3214999 (1965-11-01), Lapp
patent: 3239699 (1966-03-01), Ferrary
patent: 3285099 (1966-11-01), Parks, Jr. et al.
patent: 3469463 (1969-09-01), Ishikawa
patent: 3492887 (1970-03-01), Ellinger
patent: 3555929 (1971-01-01), Hossfeld et al.
patent: 3667320 (1972-06-01), Robinson
patent: 4003272 (1977-01-01), Volkov et al.
patent: 4425822 (1984-01-01), Marschner et al.
Braun Leslie A.
Campbell Christopher
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Harmonic drive apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Harmonic drive apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Harmonic drive apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-784516