Self-propelled floor covering scraper machine

Machine element or mechanism – Control lever and linkage systems – Hand operated

Patent

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Details

74471R, 74488, 180 648, B62D 1102

Patent

active

060034017

ABSTRACT:
A self-propelled floor covering scraper machine including a frame having front and back ends, two independently controllable wheels, mounted on each side toward the back end of the frame, mechanisms for independently driving each wheel in either a forward or reverse direction, a control mechanism for steering the machine, engaging the driving mechanisms, and controlling the forward and reverse movement of each wheel, and a scraper blade mounted to the front end of the frame at an angle extending downward and forward. The adjustable scraper blade assembly includes a blade bracket, a generally flat scraper blade attachable to the blade bracket, and a shock absorber for the blade during use. The mechanism for controlling the steering and the forward and reverse movement of the vehicle uses a horizontal crossbar rotatably connected at each end to a support on the vehicle. The crossbar's axis of rotation is perpendicular to the forward motion of the vehicle. A generally T-shaped yoke having a cross portion is attached at its center to a straight portion. The other end of the straight portion is rotatably attached to the crossbar. The axis of rotation of the straight portion is perpendicular to the crossbar's axis of rotation. The mechanism uses two linkages connected to each end of the cross portion. The linkages are respectively connected at the other of their ends to the means for controlling the forward and reverse direction of the mechanisms for driving the right and left sides of the vehicle.

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