| 摘要 |
PURPOSE:To provide a spring constant suitable to a car height, by a method wherein, in a device which adjusts a car height through variation in the volume of an air cushion, the air cushion is formed with a diaphragm and an air piston being formed by changing configuration of an outer peripheral body in a range where the diaphragm makes contact. CONSTITUTION:An air suspension 10 has an air cushion 12 located between a car body and a suspension arm, and, coupled with the action of a shock absorber 14, absorbs vibration applied on wheels. The air cushion 12 is formed in a cylindrical shape by rubber and is formed with a diaphragm 16, bent about at its central pat, an air piston 18 with which the inner end part of the diaphragm is engaged, and a housing 20 to which the outer end part of the diaphragm is secured by means of a ring 22. The air piston 18 changes the configuration of an outer peripheral surface in a range where the diaphragm makes contact. The air cushion 12 is adapted to be capable of adjusting a car height by feeding and exhausting compressed air through a hose 30 in and from an air chamber 28 through a hose 30.
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