Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1998-10-08
2000-11-14
Mar, Michael
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
267293, F16F 1300, F16F 1500, F16F 500, F16F 900
Patent
active
06145821&
ABSTRACT:
A cylinder-shaped vibration isolator includes an installation fitting, an inner cylinder-shaped fitting, a rubber elastic supporter, and elastic stoppers. The installation fitting includes a cylinder-shaped installation member. The rubber elastic supporter includes opposite elongation leading ends, extensions, and opposite leading end surfaces. The opposite elongation leading ends have a leading end surface. The extensions are extended from the opposite elongation leading ends in opposite circumferential directions substantially, and have a leading end surface. The opposite leading end surfaces are shared by the leading end surfaces of the opposite elongation leading ends and the extensions, are dented in a centripetal direction as a concaved curvature configuration, and are pressed against the inner periphery of the cylinder-shaped installation member. Because the opposite leading end surfaces of the opposite extension leading ends and the extensions are formed as a concaved curvature configuration, they are hardly separated from the inner periphery of the cylinder-shaped installation member even when a large rolling load is input into the cylinder-shaped vibration isolator. Thus, there scarcely arise the problems resulting from the separation, such as wear on the leading end surfaces of the opposite elongation leading ends and the extensions, and the foreign materials held between the leading end surfaces and the inner periphery of the cylinder-shaped installation member.
REFERENCES:
patent: 5178375 (1993-01-01), Hamaekers et al.
patent: 5435516 (1995-07-01), Ogasawara et al.
patent: 5718407 (1998-02-01), Lee
Hibi Satoru
Suzuki Shingo
Kramer Devon
Mar Michael
Tokai Rubber Industries Ltd.
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