| 摘要 |
The carriage (1) has a wheel axle (2), on whose end a running wheel is arranged. The wheel axle has a profile rod (3) exhibiting a recess (4) across the length of the axle, where the rod is made of a material such as metal or metal alloy or plastic and a filling of the recess consists of another material such as recycled plastic or concrete. The former material exhibits a specific tensile strength than that of the latter material, and the profile rod exhibits a L-shaped or u-shaped cross section. |
