Antivibration device having rotary flyweights and an...

Details Antivibration device having rotary flyweights and an... Antivibration device having rotary flyweights and an...

2008-03-25

2008-03-25

Ho, Ha D. (Department: 3681)

Planetary gear transmission systems or components

Input from independent power sources

Plural outputs

C475S005000

Reexamination Certificate

active

07347799

ABSTRACT:
An antivibration device for reducing the vibration of a structure, includes a stationary casing, mounted on the structure, and first and second sets each including two contra-rotary rotors having eccentric flyweights, the flyweights and the rotors being disposed respectively in first and second mutually parallel planes, the centers of rotation of the contra-rotary rotors representing the corners of a rectangular parallelogram in the second plane, and the axes of rotation of the contra-rotary rotors being mutually parallel and orthogonal to the first plane. In addition, it includes a stationary main motor secured to the casing with a through shaft having a first end driving the contra-rotary rotors of the first set and a second end driving the contra-rotary rotors of the second set.

REFERENCES:
patent: 3158038 (1964-11-01), Goodman
patent: 4749305 (1988-06-01), Brown et al.
patent: 6212445 (2001-04-01), Barba et al.
patent: 7086524 (2006-08-01), Hayashi et al.
patent: 7213479 (2007-05-01), Mitsui
patent: 2 852 648 (2004-09-01), None
patent: 62071483 (1987-04-01), None
Patent Abstracts of Japan, vol. 010, No. 105 (M-471), Apr. 19, 1986 & JP 60 237239 A (Mitsubishi Jukogyo KK), Nov. 26, 1985 abrege.

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