Supports – Including additional vibrating mass
Patent
1981-12-18
1985-03-12
Foss, J. Franklin
Supports
Including additional vibrating mass
248624, 248638, F16M 1300
Patent
active
045040354
ABSTRACT:
A vibration-damped power transmission device adapted to transmit power from a prime mover such as motor, internal combustion engine and the like, which causes a vibratory motion, to a driven body, said power transmission device being supported on a support frame which is to be prevented from vibration, characterized in that at least two vibration dampers are disposed between the housing of said power transmission device and said support frame, said vibration damper comprises a mandrel, a mass member having a cylindrical inner surface enclosing said mandrel, and at least one damping coil spring inserted between said mandrel and said cylindrical inner surface, each of said springs consisting of at least one small coiled portion engaged with or fixed to said mandrel, at least one large coiled portion engaged with or fixed to said cylindrical inner surface and at least one conically and spirally coiled portions integrally connecting said small coiled portion and said large coiled portion.
REFERENCES:
patent: 1819665 (1931-08-01), Wiltse
patent: 2091842 (1937-08-01), West
patent: 2586646 (1952-02-01), Graham
patent: 3084009 (1963-04-01), Heym
patent: 3172630 (1965-03-01), Goodman
patent: 4373602 (1983-02-01), Tomita
Foss J. Franklin
Seiko Giken Kabushiki Kaisha
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