Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Reexamination Certificate
2007-10-09
2007-10-09
Siconolfi, Robert A. (Department: 3683)
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
C267S141300
Reexamination Certificate
active
10545606
ABSTRACT:
A hydraulic antivibration device arrangement capable of achieving a downsizing and weight reduction, and a reduction of booming noise by suppressing a reaction force to impingement upon stopper action is provided. By disposing a protuberant rubber portion35at an upper end of a main body member2, its spacing distance from a roll center can be lengthened, the reaction force to impingement can be diminished, and input load to the main body member2can be diminished. Consequently, reduction of rigidity and strength required for respective components as well as enhancement of durability is possible, which permits to make the components thin-walled thereby making a hydraulic antivibration device arrangement100lightweight as a whole. Diminishing of such reaction force upon stopper action also enables vibrations input through a car body side bracket120to the body frame to be suppressed, thereby reducing the generation of booming noise.
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Takashima Yukio
Yamamoto Hikofumi
Siconolfi Robert A.
Toyo Tire & Rubber Co., Ltd.
Westerman, Hattori, Daniels & Adrian , LLP.
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