Patent ID: 6135566
Filing Date: 2000-10-24
Classification: E04G

Abstract:
A self-propelled machine for stripping adhesive backed floor coverings from floor surfaces, comprising:(a) a generally flat main body plate having upper and lower surfaces, a front edge, a rear edge and opposed side edges;(b) an axle journaled for rotation below the lower surface of the main body plate, the axle having a pair of ground engaging wheels affixed thereto along the opposed side edges of the main body plate, the axle further having a first sprocket keyed thereto for rotation in a vertical plane;(c) an AC motor affixed to the upper surface of the main body plate and having a motor shaft extending through the main body plate and journaled for rotation therein, the motor shaft having a second sprocket keyed thereto beneath the lower surface of the main body plate to rotate in a horizontal plane;(d) an electromagnetic clutch having an input shaft and an output sheave, the input shaft extending vertically through the main body plate and being journaled for rotation therein, the input shaft having a third sprocket keyed thereto below the lower surface of the main body plate;(e) a first endless belt operatively coupling the second sprocket to the third sprocket for driving the input shaft of the clutch;(f) a gear reduction box affixed to the main body plate, the gear reduction box having an input shaft and an output shaft, the input shaft of the gear reduction box including a fourth sprocket keyed thereto and the output shaft of the gear reduction box having a fifth sprocket keyed thereto;(g) a second endless belt operatively coupling the output sheave of the clutch to the fourth sprocket;(h) an endless chain operatively coupling the fifth sprocket to the first sprocket;(i) a cutting head member resiliently affixed to the lower surface of the main body plate by shock mounting members, the cutting head member supporting a floor engaging blade and having an eccentric shaft journaled for rotation therein, the eccentric shaft being connected to the motor shaft whereby energization of the AC motor imparts an orbital movement to the floor engaging blade and energization of the electromagnetic clutch imparts rotation to the pair of ground engaging wheels.