Suspension spring for a vibration damper that uses a carbon fiber reinforced plastic

摘要

A suspension spring for a vibration damper using a carbon fiber reinforced plastic, the suspension spring comprising:a piston rod (300) reciprocally connected to a cylinder (400) filled with a working fluid;a first sheet ( 100) attached to an end portion of the cylinder (400); a second blade (200) attached to an end portion of the piston rod (300); anda spring member (500) provided by stacking a plurality of cup-shaped element bodies (501) made of a prepreg of multi-stacked carbon fiber synthetic resin, said cup-shaped element bodies (501) having openings (502) through centers of the Openings (502) extends the piston rod (300) and the openings (502) gradually widen towards one side, the respective cup-shaped element bodies (501) between the first sheet (100) and the second sheet (200) along a longitudinally of the piston rod (300) are stacked such that the sides of the cup-shaped element bodies (501) with the wider openings face each other and the sides of the cup-shaped element bodies (501) with the narrower openings face each other.