Vibration damping spring unit for use in carriage of e.g. bus, has dampening unit, where ratio of height of dampening unit divided by maximum diameter of unit ranges between specific value

摘要

The spring unit has a dampening unit (i), where ratio of the height of the dampening unit divided by the maximum outer diameter of the dampening unit is 2.5. The height of the dampening unit is in between 145 millimeter and 155 millimeter and the maximum outer diameter ranges of dampening unit are in between 50 millimeter and 53 millimeter. The dampening unit has five ring shaped contractions (v) on its outer surface. The dampening unit has a ring (xx) which is provided in the contractions, where a protection pipe (xxi) is fixed at the ring. An independent claim is also included for an automobile comprising a spring unit.