Patent ID: 6039148
Filing Date: 2000-03-21
Classification: E04G

Abstract:
A scaffold device comprising, in combination:a frame including four stanchions, an upper peripheral railing with a rectangular configuration defined by a pair of elongated side bars and a pair of short end bars defining four corners fixedly Coupled to top ends of the stanchions, a pair of cross brace assemblies each including a pair of cross bars having bottom ends coupled to bottom ends of the stanchions and top ends mounted to the stanchions between a central extent thereof and top ends thereof such that the cross bars of each cross brace assembly intersect and remain in a plane in which one of the elongated side bars of the peripheral railing resides, a plurality of vertically spaced horizontal end braces coupled between the stanchions in perpendicular relatioaship therewith and residing in a place in which one of the short end bars of the peripheral railing resides, and a planar rectangular platform mounted to the stanchions level with the top ends of the cross bars of the cross brace assemblies;a plurality of drive units each includling a housing with a rectangular configuration having a first end pivotally coupled to the bottom end of one of the stanchions of the frame such that the same resides within an interior space thereof, a disk-shaped wheel rotatably mounted between tabs extending downwardly front side faces of the housing adjacent a second end thereof wherein the wheel extends downwardly through a lower opening in the housing, a drive motor mounted to a top face of the housing at the second end thereof with a first rotor in abutment with a peripheral side of the disk-shaped wheel for rotating the same about an axis of rotation thereof upon actuation, a gear fixedly couple on the bottom end of one of the stanchions and extending within the interior space of the housing, a turn motor mounted within the housing at the first end thereof with a second rotor in communication with the gear for rotating the housing about an axis of the associated stanchion upon the actuation thereof;a control power case having a rectangular configuration and mounted on a bottommost one of the end braces and including a battery positioned therein for powering purposes, a charger positioned therein and connected to the battery with a plug for connecting with an alternating current source for receiving power therefrom and transmitting the same to the battery for recharging purposes, and a wheel controller connected between the drive motor, the turn motor and the battery for actuating the motors upon the receipt of activation signals;a wheel control assembly including a post coupled to an end of the platform and extending upwardly therefrom and a steering wheel mounted on the post and connected to the wheel controller for transmitting the activation signals thereto, wherein the steering wheel coupled to a top portion of the frame, the wheel control assembly further comprising a pair of levers being pivotally coupled to the steering wheel, each of the levers having a semi-circular outboard portion and a linear portion, each of levers being for transmitting activation signals to the drive units of a corresponding side of the frame; anda toggle control assembly including a panel mounted on the frame with a plurality of toggle switches and adjacent sensors mounted thereon and connected to the wheel controller for transmitting the activation signals thereto.