Patent ID: 7314253

Claim:
A coal plough for underground mining, said plough comprising a plough body that is adapted to be guided along an associated plough guide, said plough body comprising: at least one foot piece; a sliding skid received on said at least one foot piece, said sliding skid comprising at least one contact surface formed on its underside, said contact surface adapted for sliding on a rail of the associated plough guide when said sliding skid is in its operating position, said contact surface comprising first and second wear inlays on said underside of said sliding skid, wherein said sliding skid is configured as a hinged runner adapted to be connected in a swivelling manner with said at least one foot piece about a swivelling axis, said swivelling axis extending at a right angle to two oppositely directed sliding directions of said sliding skid, wherein said first and second wear inlays are located on opposite first and second sides of the swivelling axis so as to be in front of and behind said swivelling axis, respectively, wherein a first distance from said first wear inlay to said swivelling axis is approximately twice as large as a second distance from said second wear inlay to said swivelling axis; wherein said sliding skid further comprises: a lateral hook comprising a rising limb and forming an approximately U-shaped holding fixture for a guide bar on the associated plough guide; and, a raised shoulder spaced from said rising limb and cooperating with said rising limb to define said approximately U-shaped holding fixture, said raised shoulder greater in height as compared to said rising limb.