TRAILING ARM BUSH FOR COUPLED TORSION BEAM AXLE

摘要

A trailing arm bush may include a cylindrical outer pipe, an inner pipe inserted to a central portion of the outer pipe at an interval, a first bush rubber unit, a second bush rubber unit and a third bush rubber unit that connect between an inner peripheral surface of the outer pipe and an outer peripheral surface of the inner pipe, respectively, a hollow void part formed between the inner peripheral surface of the outer pipe and the outer peripheral surface of the inner pipe, and a stopper attached to the inner peripheral surface of the outer pipe and disposed among the first bush rubber unit, the second bush rubber unit and the third bush rubber unit.

主权项

1. A trailing arm bush for CTBA (Coupled Torsion Beam Axle) that connects between a pair of trailing arms supported by a torsion beam disposed in a vehicle width direction and a vehicle body, comprising:
a cylindrical outer pipe configured to be coupled to one side of the trailing arm; an inner pipe inserted to a central portion of the outer pipe at an interval; a first bush rubber unit, a second bush rubber unit and a third bush rubber unit that connect between an inner peripheral surface of the outer pipe and an outer peripheral surface of the inner pipe, respectively; a hollow void part formed between the inner peripheral surface of the outer pipe and the outer peripheral surface of the inner pipe; and a stopper attached to the inner peripheral surface of the outer pipe and disposed among the first bush rubber unit, the second bush rubber unit and the third bush rubber unit, wherein when the inner pipe is moved in a front-to-back direction due to external vibration of a vehicle, angles of the first bush rubber unit, the second bush rubber unit and the third bush rubber unit formed together with the inner pipe change, and wherein the trailing arm bush for CTBA has characteristics of a non-linear spring.