| 摘要 |
The present invention relates to a spring device, in particular for a secondary suspension device of a rail vehicle, comprising a spring body (120.1) substantially made of a polymeric material and defining an axial direction and a radial direction. The spring body (120.1), in the axial direction, has a central section (120.2) located between a first end section (120.3) terminating in a first outer end surface (120.4) and a second end section (120.3) terminating in a second outer end surface (120.4), the central section (120.2) having at least one radially waisted section (120.5). The first end section (120.3) has a recess extending, in the axial direction, from the first outer end surface (120.4) towards the central section (120.2) such that an axial spring body cavity (120.7) is formed, the axial spring body cavity (120.7) being confined by a compliant inner surface (120.8). An insert (121 ) is inserted into the axial spring body cavity (120.7), the insert (121 ) contacting the inner surface (120.8) of the spring body (120.1) to modify a rigidity of the spring device compared to a reference state, where the insert (121) is not inserted into the axial spring body cavity (120.7). |
