| 摘要 |
The telescopic extension has a tubular outer part (1) and at least one inner part (2). The two parts are axially guided by a sliding support (G, G') between them. This support has at least one connecting body (3, 3') with two or more layers, or a support body, so that the components are reliably centered in a structure formed by a rigid layer (5) and an elastic layer (6). |
