Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Patent
1991-11-06
1992-10-06
Wright, Dirk
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
464 24, F16F 1522
Patent
active
051521890
ABSTRACT:
Object: An object of the present invention is to provide a damper absorbing a rotary power around its axis, which has a construction to make the damper compact for mounting at a narrow position, which can be applied to cause a highly damped torque.
Entity: A high-torque damper characterized in that it comprises: a casing (3) having a cylindrical chamber (1) in which viscous fluids (2) can be filled; a rotating member (5) which is combined with the casing (3) to be relatively rotatable and has a shaft member (4) in a center which is rotatable in said chamber (1); a movable valve (7) which can be anchored with slack in the rotary direction to an axial projection (6) provided on the shaft member (4) of the rotating member (5) or on a wall surface in the chamber (1), and of which the other surfaces can be slid on a wall surface of the chamber (1) or a peripheral surface of the shaft member (4) and is simultaneously rotatable; a plurality of viscous fluid channels (8, 9 and 10) having each different sectional area, are formed on a contacting portion between said projection (6) and the movable valve (7) so that resistance can be varied corresponding to a direction of a relative rotation.
REFERENCES:
patent: 740473 (1903-10-01), Scherer
patent: 755066 (1904-03-01), Smith
patent: 1422929 (1922-07-01), Cooke
patent: 1630737 (1927-05-01), Flanders
patent: 2307187 (1943-01-01), Anderson
patent: 2381325 (1945-08-01), Wahl
patent: 3210962 (1965-10-01), Birdwell
patent: 3322212 (1967-05-01), Pauley
patent: 3653228 (1972-04-01), Tiberio
patent: 4175408 (1979-11-01), Kasai et al.
Kobori Takeaki
Miura Osamu
Takano Susumu
Tok Bearing Co., Ltd.
Wright Dirk
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