STRUT TYPE SUSPENSION AND COMPRESSION COIL SPRING FOR SUSPENSION

摘要

A strut-type suspension (11) includes a compression coil spring (12), a lower spring seat (13), an upper spring seat (14), and a shock absorber (15) which passes through the inside of the compression coil spring (12). The compression coil spring (12) is disposed at a position offset to the outer side of a vehicle with respect to the shock absorber (15). The compression coil spring (12) is mounted in a vehicle body (30) in such a state that it is compressed between spring seats (13, 14). The compression coil spring (12) includes a large-diameter wire portion (40a) and a small-diameter wire portion (40b). The large-diameter wire portion (40a) is provided in a vehicle inner-side portion (12a) of the compression coil spring (12). The small-diameter wire portion (40b) is provided in a vehicle outer-side portion (12b). A wire diameter (d1) of the large-diameter wire portion (40a) is greater than a wire diameter (d2) of the small-diameter wire portion (40b).