A coil spring includes an elongated body (10) formed by a plurality of continuous coils (21, 31), and the body (10) includes an upper section (20) and a lower section (30), wherein pitches (22) and coil angles (23) of the coils (21) in the upper section (20) are generally consistent to form an upright profile (24) for the upper section (20), and wherein pitches (32) and coil angles (33) of two or more coils (31) at a free end of the lower section (30) is differed from the pitches (22) and the coil angles (23) of the coils (21) in the upper section (20) to form a gradually curved profile (34) for the lower section (30).
COIL SPRING FOR VEHICLE SUSPENSION SYSTEM
2023-01-05
Patent
Electronic Resource
English