| 摘要 |
In a ram boring device with a essentially cylindrical ram housing (10) receiving the ram apparatus, and a displacement head (22) connected with one longitudinal end of the ram housing (10) and whose diameter at its end facing the ram housing (10) has a diameter at least equal to that of the ram housing (10), the ram boring device having a receiving space (24) for a position transmitter (28), a transmitter housing (20) containing the receiving space (24) is arranged between the displacement head (22) and the ram housing (20) with the transmitter housing (20) having an outer diameter at least nearly equal to the outer diameter of the ram housing (10).
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