Patent ID: 8616656

Claim:
A ploughing device for mining, having a ploughing tool that has a plurality of interconnected plough bodies, and having a reversible longwall conveyor which forms a guide for the plurality of plough bodies and is constructed from trough elements that are interconnected in a detachable manner by trough element connectors, wherein at least one of the plurality of plough bodies is provided with at least one pivotable cutter carrier for each direction of travel of the ploughing tool and a moveably mounted connecting rod for a travel-direction-dependent pivotable coupling of the cutter carrier, the plurality of plough bodies including a first plough body, a second plough body and a third plough body, the first plough body provided with the connecting rod and forms a central plough body having a first cutter carrier with first cutters, the second plough body forms a first lateral plough body connected to the first plough body by a first coupling member and the third plough body forms a second lateral plough body connected to the first plough body by a second coupling member, the first lateral plough body and the second lateral plough body each having a first cutter column configured to mine an upper lode seam, and a second cutter column configured to mine a central lode seam from a working face; wherein the first cutters on the first cutter carrier of the central plough body protrude deeper in a direction configured to engage the working face than cutters of the first cutter column and the second cutter column of each of the first lateral plough body and the second lateral plough body; wherein the coupling members in each case includes a toggle bolt with a toggle shaft and two toggle heads and the central plough body and the lateral plough bodies have open-edged toggle pockets for holding in each case a toggle head of the toggle bolts.