A coil spring (2) for a vehicle suspension according to one embodiment includes a lower end turn portion (20), an upper end turn portion (21), and a cylindrical effective portion (22) between the lower end turn portion (20) and the upper end turn portion (21). In at least one of the upper end turn portion (21) and the lower end turn portion (20), a taper portion (25)(26) having a taper length and a taper thickness for controlling a force line (FL) of the coil spring (2) is formed. The taper portion (25)(26) is formed such that the thickness is reduced in a tapered way from a thickness varying portion (25a)(26a) provided in the middle of the end turn portion (20)(21) toward a distal end of the wire (4) along its length. The thickness varying portion (25a)(26a) is arranged at a position close to the force line (FL).
MCPHERSON-STRUT-TYPE SUSPENSION
MCPHERSON-FEDERBEIN
SUSPENSION DE TYPE MCPHERSON
2022-05-18
Patent
Electronic Resource
English
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