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US 2006/0148608 A1Published application
Internal teeth oscillating inner gearing planetary gear system
AssigneeSumitomo Heavy Industries, Ltd.
InventorsYo Tsurumi, Takashi Haga
Life of this patent
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Abstract
An internal teeth oscillating inner gearing planetary gear system is provided with an input shaft, an eccentric gear rotated by the input shaft, the internal oscillating body oscillatingly rotated through the inner circumferential surface of the eccentric gear, and an external gear meshed with the internal oscillating body.
Claims5
An internal teeth oscillating inner gearing planetary gear system comprising:
- an input shaft;
- an eccentric gear being rotated by the input shaft and having an eccentric inner circumferential surface with respect to a rotational center thereof;
- an internal oscillating body being guided by the inner circumferential surface of the eccentric gear and oscillatingly moved thereby, the internal oscillating body having internal teeth on an inner periphery thereof;
- an external gear internally meshing with the internal oscillating body, the external gear having slightly less number of external teeth than that of the internal teeth of the internal oscillating body.
1 more element
A driving method of an inner teeth gearing planetary gear system, the system having an input shaft, an output shaft, an external gear, and an internal oscillating body, the method comprising the steps of:
- transmitting rotation of the input shaft to an eccentric gear, the eccentric gear having an eccentric inner circumferential surface with respect to a rotational center thereof;
- oscillatingly rotating the internal oscillating body by using the inner circumferential surface of the eccentric gear as a guide surface, the internal oscillating body having internal teeth on an inner periphery thereof and meshing with the external gear through the internal teeth;
- and
- restricting any one of rotations of the internal oscillating body and the external gear, and delivering a rotational component of the other whose rotation is not restricted for output.
1 more element
Dependencies are inferred from the claim text.