Toyota Jidosha Kabushiki Kaisha

The Toyo Rubber Industry Co., Ltd.

Satoshi Itoh

Motoo Kunihiro

Masahiro Ishigaki

Zenji Nakajima

Osamu Kuroda

Shuichi Okamoto

Kazumasa Kuze

A fluid-damping vibration-isolating support device comprising a main support body having a rubber base member and a closed enclosure internally thereof; and a partition plate dividing the enclosure into two chambers which intercommunicate through an orifice and are filled with a liquid. The partition plate comprises a separator member and a stopper member. The separator member is formed of an outer peripheral thick wall portion having an orifice and an inner thin flat plate portion having at least one through-hole. The stopper member has two opposed plate sections provided so as to cover the through-hole and is captured to the separator member slightly movably to the degree that the plate sections are in contact with or separate from both faces of the flat plate portion. The stopper member serves to close upon low frequency vibration and open upon high frequency vibration, so that in the high frequency region rise of hydraulic pressure can be suppressed and dynamic spring rate can be lowered.

Fluid-damping vibration-isolating support device

Growing community of inventors

Toyota, Japan

Satoshi Itoh