Patent ID: 6341791
Filing Date: 2002-01-29
Classification: A61G,B62K

Abstract:
A wheelchair and bicycle combination device, said device comprising:a bicycle frame; a seat assembly slidably mounted to said bicycle frame; a gear assembly, said gear assembly comprising at least a first gear and a second gear, said first gear being rotatably coupled to a front portion of said frame, said second gear being rotatably coupled to a back portion of said frame, a bike chain extending around and in communication with teeth on said first and second gears, a crank axle extending through said first gear, said crank axle having a pair of ends, each of a pair of pedals being rotatably coupled to one of said ends of said crank axle, a bike wheel being securely attached to said second gear; a wheelchair, said wheelchair comprising; a seat portion; a back rest being securely coupled to and extending upwardly from a back edge of said seat portion; a pair of front wheels and a pair of rear wheels being rotatably coupled to said seat portion, an axle extending between said back wheels; a pair of handles, each of said handles being coupled and extending upwardly from a top edge of said back rest; and a coupling means removably attaches said bicycle frame to said axle of said wheelchair; said bicycle frame comprising a seat tube, said seat tube having a first end and second end, said second end being open, a tire mounting tube, said tire mounting tube having a first end and a second end, said second end of said tire mounting tube being integrally coupled to said seat tube, said second end of said tire mounting tube being positioned generally adjacent to said second end of said seat tube, a support bar, said support bar having a first end and a second end, said first end of said support bar being integrally coupled to said first end of said seat tube, said second end of said support bar being integrally coupled to said first end of said tire mounting tube such that said seat tube, said tire mounting tube and said support bar generally defining a triangle such that said second end of said seat tube is an apex of said triangle, said first end of said seat tube defining said front portion of said bicycle frame, said first end of said tire mounting tube defining said back portion of said bicycle frame; said coupling means comprising: a coupling bar, said coupling bar having a first end and a second end, said first end being integrally coupled to said bicycle frame and positioned at a juncture of said seat tube and said support bar, a peripheral wall of said coupling bar being threaded, said threads being generally adjacent to said second end of said coupling bar; a plate, said plate having a front side, a back side, a bottom edge, a top edge and two side edges, said plate having a elongate slot therethrough, said slot being positioned generally between said side edges and orientated generally parallel to said side edges, said second end of said coupling bar being extendable through said slot, a nut being removably couplable to said threads such that said second end of said coupling bar may be selectively positioned between said top and bottom edges of said plate; a pair of extension rods, each of said extension rods having a proximal end and a distal end, each of said distal ends being securely attached to said front side of said plate; and a pair of ring members, each of said ring members being securely coupled to said proximal ends of said extension rods, each of said ring members having a pair of breaks therein such that a first and second section are defined, each of said sections having a first end and a second end, said first ends of said sections being hingedly coupled together by a hinge, said second ends of said sections having an flange integrally coupled thereto, each of said flanges having a bore therethrough, each of a pair of securing means removably securing said flanges together and being extendable through said bores in said flanges, wherein said ring members are positionable around said axle of said wheelchair.