Portable cutting device with a height adjustable cutting tool for making cuts parallel to a reference plane

Portable cutting device with a height-adjustable cutting tool for making cuts parallel to a reference plane, particularly for cutting door cases, doors and the like, including a cutting tool (12;

• 36, 36′) which during cutting must be kept parallel to and at a predetermined and constant distance from the said reference plane (which may for example be the surface of a floor, of a wall or the like),
• characterized in that it comprises:
• a plate (17;
• 31) that bears on the reference plane of the cut, on which stand a plurality of fixed posts (18;
• 32, 32.1) of basically perpendicular axis and that pass through corresponding holes in an opposing base plate (13.1;
• 33) set at a distance from the said bearing plate, while clamping means (wing nuts 19;
• threaded handgrips 34) engage with the said posts to provide detachable fastening of the said bearing plate to the said base plate, in a mutually parallel arrangement and in combination with
• at least one spacer plate of a plurality of spacer plates (20;
• 35), sandwiched between the said bearing plate and the said base plate in order, with this bearing plate, to define the desired distance of the cutting tool from the reference plane of the cut,
• in such a way as correctly to determine, as the operator decides, the cutting height of the cutting tool from the reference plane of the cut, while always ensuring that the said tool and the said plane are correctly parallel.