DEVICE TO ADJUST RIGIDITY OF COILED SPRING Russian patent published in 2010 - IPC B60G17/02 F16F1/12 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly to suspensions. Proposed device comprises spring with different-diametre coils secured between the spring support plates. Inner and outer support plates 4, 3 are fitted on cylinder 6 of shock-absorbing post and radially spaced apart. When in 1^st shock-absorbing position, spring 1 rests by section 1a of smaller-diametre coils d upon inner support plate 4. In 2^nd shock-absorbing position (II), spring 1 rests by section 1b of larger-diametre coils D upon outer support plate 3.

EFFECT: simplified spring adjustment.

11 cl, 3 dwg