DAMPING FORCE VARIABLE DAMPER DEVICE

PROBLEM TO BE SOLVED: To provide a damping force variable damper device capable of efficiently achieving the damping effect on earthquakes from a small one to a large one by operating a plurality of oil dampers step by step, and capable of implementing the damping easily even in an urban region with...

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Bibliographische Detailangaben
Hauptverfasser:	KIMURA MITSURU, SHIBAZAKI YOSHIMI, FUJIMURA MASARU, TSUSHI YUUKO, MIYAKE HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES ENGINEERING ELEMENTS AND UNITS FENCING FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MASTS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SHOCK-ABSORBERS SPRINGS SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a damping force variable damper device capable of efficiently achieving the damping effect on earthquakes from a small one to a large one by operating a plurality of oil dampers step by step, and capable of implementing the damping easily even in an urban region with insufficient area. SOLUTION: The damper device comprises a casing attached to either upper or lower structure forming quake releasing layers, a force transmitting movable body which moves relatively inside the casing and whose rod is attached to the other structure, and a plurality of oil dampers disposed on left and right sides of the movable body and fixed to the casing. A first oil damper is directly attached to the movable body, and a second and other oil dampers are disposed at such positions as to be operated step by step according to the size of the moving stroke of the movable body.