Compagnie Du Sol

Soletanche Freyssinet

Jean-Claude Riglet

Philippe Chagnot

Daniel Perpezat

Fabrice Mathieu

The invention relates to a drilling tool comprising: two pairs of rotary drums in axial alignment on parallel axes; a motor mechanism for driving rotation of the drums; a support element; and a support structure on which the drums are mounted to rotate and serving to connect the drums to the support element; the tool being characterized in that the motor mechanism is mounted inside the drums and in that the support structure comprises a plate forming bearings at its bottom ends for the drums; and a mounting pad for fastening to the support element.

Drilling tool

The invention relates to a cutter head for an excavator machine including at least one cutter motor, each cutter motor comprising:

Cutter head for an excavator machine

The invention relates to a cutter head for an excavator machine having at least one cutter motor, each cutter motor comprising: a fastener plate; a mounting structure comprising an end portion and a mounting assembly; a single hydraulic motor mounted in said mounting assembly and having an outlet shaft presenting two ends, said motor and the end portion of the mounting structure being offset in a direction that is orthogonal to said fastener plate; a plurality of conduits formed in the thickness of the fastener plate; and a plurality of ducts formed in said end portion of the mounting structure to connect the hydraulic motor to said conduits.

Growing community of inventors

Nanterre, France

Jean-Claude Riglet