Spring devices – Vehicle – Compound
Patent
1997-06-17
1999-12-07
Schwartz, Chris
Spring devices
Vehicle
Compound
267 35, 267221, 188315, B60G 1156
Patent
active
059969784
ABSTRACT:
In a first type, there is provided, inside an inner tube of a twin-tube type of damper, a pressurizing chamber to be defined by a free piston which is slidably fit onto an outer surface of a rod. A fluid pressure from an outside pressure source is supplied to the pressurizing chamber to push down a damper piston via the free piston to thereby forcibly contract the damper. In a second type, there is provided inside an inner tube a cylinder which is slidably fit onto an outer surface of a rod, and a piston mounted on the rod is inserted into the cylinder. A fluid pressure from the pressure source is supplied to the pressurizing chamber inside the cylinder to push down the rod via the piston to thereby forcibly contract the damper. In a third type, a rod is slidably inserted into a partition wall in an intermediate portion of a damper main body of a mono-tube type of damper. A free piston which is prevented by a stopper member from dropping out of position downwards is slidably mounted onto an outer surface of a rod portion below the partition wall. A fluid pressure from a pressure source is supplied to a pressurizing chamber to be defined between the partition wall and the free piston. The rod is pushed down via the free piston and the stopper member to thereby forcibly contract the damper.
REFERENCES:
patent: 2519605 (1950-08-01), Rossman
patent: 2537423 (1951-01-01), Rossman
patent: 3083000 (1963-03-01), Perdue
patent: 3145985 (1964-08-01), Bourcier de Carbon
patent: 3173671 (1965-03-01), Broadwell
patent: 3794309 (1974-02-01), Chrokey et al.
patent: 3936039 (1976-02-01), McKinnon
patent: 4054277 (1977-10-01), Sirven
patent: 4328960 (1982-05-01), Handke et al.
patent: 4720085 (1988-01-01), Shinbori et al.
Asanuma Nobuyoshi
Hayakawa Yukio
Kondo Satoshi
Honda Giken Kogyo Kabushiki Kaisha
Schwartz Chris
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