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Title:
SUSPENSION DEVICE HAVING VEHICLE HEIGHT ADJUSTING FUNCTION
Document Type and Number:
WIPO Patent Application WO/2009/136509
Kind Code:
A1
Abstract:
A suspension device (1) having a vehicle height adjusting function is provided with a spring element (S) functioning as a suspension spring mounted between an unsprung member (W) and a sprung member (B) of a vehicle, an actuator (A) mounted between a position in the middle of the spring element (S) and the sprung member (B) or the unsprung member (W) and adjusting the height of the vehicle, and a fluid pressure damper (D) mounted parallel to the spring element (S). With the suspension device, adjustment of the height of the vehicle by the actuator (A) requires the actuator only to generate a thrust force corresponding to a spring force of the spring element (S), which spring force increases and decreases as the spring element is retracted and extended. The structure improves response in vehicle height adjustment, and the actuator (A) does not obstruct the extension and retraction of the fluid pressure damper (D) when external vibration is inputted into the device.

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Inventors:
KONDO TAKUHIRO (JP)
ISHIZUE IKUHITO (JP)
OTA YASUHIRO (JP)
SAKUTA ATSUSHI (JP)
INOUE HIROFUMI (JP)
Application Number:
PCT/JP2009/050912
Publication Date:
November 12, 2009
Filing Date:
January 15, 2009
Export Citation:
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Assignee:
KAYABA INDUSTRY CO LTD (JP)
TOYOTA MOTOR CO LTD (JP)
KONDO TAKUHIRO (JP)
ISHIZUE IKUHITO (JP)
OTA YASUHIRO (JP)
SAKUTA ATSUSHI (JP)
INOUE HIROFUMI (JP)
International Classes:
B60G17/02; B60G17/00; F16F9/32; F16F9/46
Foreign References:
JP2005188613A2005-07-14
JP2001088527A2001-04-03
JPH10203128A1998-08-04
JP2006143146A2006-06-08
JP2006064101A2006-03-09
Attorney, Agent or Firm:
AMANO, Izumi et al. (5-2 Kyobashi 2-chom, Chuo-ku Tokyo 31, JP)
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