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Title:
LIQUID-FILLED VIBRATION ISOLATOR
Document Type and Number:
WIPO Patent Application WO/2002/055900
Kind Code:
A1
Abstract:
A liquid-filled vibration isolator supporting a power unit such as an automobile engine, effectively attaining vibration control, steering stability and improved riding comfort during traveling, and vibration control during idling. The liquid-filled vibration isolator comprises a vibration isolating base body (4) in the form of a rubber-like elastic body interposed between upper and lower fixtures (2, 3), a liquid chamber (5) formed between the vibration isolating base body (4) and a diaphragm (6), a partition (7) partitioning the liquid chamber into two chambers, and an orifice passageway (8), the attaching surface (3a) of the lower fixture (3) for a support member (B2) on the car body side having an angle of inclination($g(u)) of 30°or above with respect to the horizontal, wherein the ratio (Kd1/Kd2) of the dynamic spring constant (Kd1) vertically of the vehicle provided by the vibration isolating base body (4) to the dynamic spring constant (Kd2) in the horizontal direction is set in the range of 1.3 3.0 to allow the orifice to exert the vibration damping function in a vibration frequency band during idling.

Inventors:
Takashima, Yukio (Toyo Tire & Rubber Co, Ltd. 17-18 Edobori 1-chom, Nishi-ku Osaka-shi Osaka, 550-0002, JP)
Takaoka, Masashi (Toyo Tire & Rubber Co, Ltd. 17-18 Edobori 1-chom, Nishi-ku Osaka-shi Osaka, 550-0002, JP)
Application Number:
PCT/JP2001/000008
Publication Date:
July 18, 2002
Filing Date:
January 04, 2001
Export Citation:
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Assignee:
TOYO TIRE & RUBBER CO., LTD. (17-18, Edobori 1-chome Nishi-ku Osaka-shi, Osaka, 550-0002, JP)
Takashima, Yukio (Toyo Tire & Rubber Co, Ltd. 17-18 Edobori 1-chom, Nishi-ku Osaka-shi Osaka, 550-0002, JP)
Takaoka, Masashi (Toyo Tire & Rubber Co, Ltd. 17-18 Edobori 1-chom, Nishi-ku Osaka-shi Osaka, 550-0002, JP)
International Classes:
F16F13/10; F16F15/00; (IPC1-7): F16F13/10
Foreign References:
JPH0533825A
JPH0353653U
JPH04370434A
US5772189A
DE4205229A1
Other References:
None
Attorney, Agent or Firm:
Tsutada, Akiko (9th Floor, Nissei Bingomachi Bldg. 7-10 Bingomachi 1-chom, Chuo-ku Osaka-shi Osaka, 541-0051, JP)
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