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Laying machine

  • US 10,358,791 B2
  • Filed: 01/26/2011
  • Issued: 07/23/2019
  • Est. Priority Date: 01/26/2010
  • Status: Active Grant
First Claim
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1. A laying machine for laying at least one flexible casing or tube, cable or wire comprising:

  • a blade arrangement for making a trench in a ground,a motor configured to rotatably drive the blade arrangement, anda consolidation and laying means being arranged behind the blade arrangement and configured to clear and safeguard the trench from collapsing while laying the at least one flexible casing or tube, cable or wire into the trench, wherein the consolidation and laying means comprises a concave front end which faces and follows a periphery of the blade arrangement;

    wherein the blade arrangement is a blade assembly comprising;

    a first blade, a second blade, and a third blade that are axially aligned, each of the first blade, the second blade, and the third blade having a working portion at an outer periphery of the respective blade, a central portion around an axial center of the respective blade, and a blade support structure extending between the working portion and the central portion, anda first spacer structure disposed between the first blade and the second blade and a second spacer structure disposed between the second blade and the third blade, each of the first and second spacer structure comprising a center, a plurality of segments extending from the center toward an outer periphery of the blade assembly, and a hole disposed between each segment of the plurality of segments to form a compartment between neighboring blades of the blade assembly,wherein the first blade comprises a plurality of first bores, each one of the plurality of first bores perforating the first blade into a respective compartment of the first spacer structure, andwherein the second blade comprises a plurality of second bores corresponding and axially aligned with the plurality of first bores, each one of the plurality of second bores perforating the second blade to extend between corresponding compartments of the first spacer structure and the second spacer structure.

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