| 摘要 |
A plastic frame for skates characterised by comprising a structure of substantially U-shaped cross section and consisting of at least two parts of plastic material of different rigidity, the first part (6) being formed, in a first stage of a bi-injection moulding process, from substantially rigid material to constitute the actual wheel support frame, the second part (14) being formed, in the second stage of the bi-injection moulding process, from material of lesser rigidity than the first part and constituting a damping element. |
