Patent ID: 6268572
Filing Date: 2001-07-31
Classification: G01G

Abstract:
A wheelchair scale adapter platform comprising:a. a platform having upper and lower surfaces, front and a back, sides, and defining a cut out near a center and further defining at least one cut out near each of the front and back sides, the upper surface having guide strips placed thereon at approximately the same distance apart as a pair of wheelchair wheels, the sides and back having side walls and a rear wall respectively projecting upwardly therefrom, the lower surface further having legs adjustably attached thereto for providing added stability;b. an access ramp having a lead edge, a rear edge, and hinges rotatably connecting the rear edge to the front of the platform;c. a scale attached to the lower surface of the platform, adapted for weighing a wheelchair and an occupant which has been wheeled onto the platform;d. a lifting ramp having a first edge, and hinges adapted to rotatably connect the first edge to the back of the upper surface;e. a first L-shaped lifting lever attached to the lifting ramp, the L-shaped lifting lever having a horizontal portion, a vertical portion, and a distal end;f. a second L-shaped lifting lever attached to the access ramp, the second L-shaped lifting lever having a horizontal portion, a vertical portion, and a distal end; andg. a flexible connection means attached at one end to the distal end of the first L-shaped lifting lever, and at another end to the distal end of the second L-shaped lifting lever,whereby the access ramp is lifted upwardly off the ground when a user's wheelchair rolls up onto the ramp and the front wheels of the wheelchair roll onto the lifting ramp causing the first L-shaped lifting lever to rotate, which in turn pulls the second L-shaped lifting lever, lifting the access ramp and providing a more accurate measurement of the user's weight.