Spring devices – Seat support
Patent
1989-05-01
1990-07-17
Reger, Duane A.
Spring devices
Seat support
267121, 267218, F16F 500
Patent
active
049416480
ABSTRACT:
Herein disclosed is a shock absorbing device for a vehicular seat. The device comprises a link mechanism having lower and upper base members which are movable toward and away from each other; and a shock damper interposed between the lower and upper base members to damp shocks or vibrations applied to the same. The shock damper includes an axially expandable housing having lower and upper parts which are respectively secured to the lower and upper base members of the link mechanism; a diaphragm disposed in the housing to partition an interior of the housing into an air-filled part and a liquid-filled part; a partition wall disposed in the liquid-filled part to partition the same into first and second chambers, the partition wall having an aperture formed therethrough; and an orifice member axially movably disposed in the aperture of the partition wall, the orifice member having an orifice formed therethrough.
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patent: 3374981 (1968-03-01), Stuckenberger et al.
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patent: 3668870 (1972-06-01), Hall
patent: 3994469 (1976-11-01), Swenson et al.
patent: 4638982 (1987-01-01), Misher et al.
patent: 4844428 (1989-07-01), Margolis et al.
Ikeda Bussan Co. Ltd.
Reger Duane A.
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