Method for operating a horizontal drilling device and horizontal drilling device

  • US 9,243,453 B2
  • Filed: 03/31/2011
  • Issued: 01/26/2016
  • Est. Priority Date: 03/31/2010
  • Status: Active Grant
First Claim
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1. A horizontal drilling device comprising:

  • a linear drive;

    a rotational drive which is displaceable by the linear drive; and

    a drill rod assembly,wherein the rotational drive forms a through opening into which the drill rod assembly is insertable,wherein the rotational drive includes a force transmission ring for form fittingly transmitting to the drill rod assembly,wherein the force transmission ring is configured so that in a first angular position of the force transmission ring relative to the drill rod assembly, the drill rod assembly is insertable into or removable from the rotational drive and in a second angular position of the force transmission ring relative to the drill rod assembly, the drill rod assembly is locked, thereby enabling transmission of the forces,wherein the force transmission ring forms an opening through which the drill rod assembly is passable, andwherein the drill rod assembly has at least in one first section a first cross section which corresponds to a cross section of the opening formed by the force transmission ring, so as to enable passage of the drill rod assembly through the opening only in the first angular position, and wherein the drill rod assembly, in at least one second section, which is formed as a subsection of the first section, has a second cross section so as to enable rotation of the drill rod assembly into the second angular position only when the second section is located within the opening formed by the force transmission ring.

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