Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1979-11-06
1981-11-03
Halvosa, George E. A.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
16DIG39, 1374939, 18832215, F16F 944
Patent
active
042981026
ABSTRACT:
A shock absorber has expansion and compression damping characteristics readily adjustable, if required, to different extents. In one preferred form, it includes an adjustable orifice associated with a piston, and the orifice includes an annular flexible valve element and a valve-seat member engageable with the inner peripheral edge thereof. The valve-seat member is formed at the bottom with feet which are arranged opposite to a stepped or continuously inclined annular top surface portion of the piston and is axially movable for engagement with the latter. The amount of axial movement of the valve-seat member and hence that of deflection of the valve element is adjustable by rotation of the valve-seat member relative to the piston through provision therefor at the top of the cylinder. In an alternative form, the shock absorber has an expansion and a compression damping mechanism separately incorporated therein, including an externally adjustable valve mechanism arranged in the bottom of the cylinder in addition to the one associated with the piston. In this instance, the cylinder is received in a tubular casing for rotation relative thereto.
REFERENCES:
patent: 2335907 (1943-12-01), Boor et al.
patent: 2481088 (1949-09-01), Cuskie
patent: 2487472 (1949-11-01), Patriquin
patent: 2788092 (1957-04-01), Whisler, Jr.
patent: 3827538 (1974-08-01), Morgan
patent: 4114735 (1978-09-01), Kato
Nishikawa Masao
Yamamoto Hitoshi
Halvosa George E. A.
Honda Giken Kogyo Kabushiki Kaisha
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