| 摘要 |
Device for transferring a vibrating movement to a rigid pipe (8) for letting it penetrate into or removing it from a bed in upright or inclined position, comprising clamping means (37) for clampingly holding the upper end of the pipe (8) for transfer of the vibrating movements thereto and biassing means for the clamping means (37), which clamping means (37) comprise at least two clamping members that can be biassed away from each other by means of the biassing means, for clampingly engaging -exclusively- the inner surfaces of the pipe (8). <IMAGE> |
