An all terrain wheelchair is provided. The wheelchair includes a frame. The frame includes an upper bracket, a lower bracket, a first side, a second side, a front end and a rear end. At least one motor is mounted to the lower bracket of the frame. A first drive sprocket and a second drive sprocket m
An all terrain wheelchair is provided. The wheelchair includes a frame. The frame includes an upper bracket, a lower bracket, a first side, a second side, a front end and a rear end. At least one motor is mounted to the lower bracket of the frame. A first drive sprocket and a second drive sprocket may be disposed on the first side and the second side respectively. The motor may rotate the first and second drive sprockets. A first track drive wheel is rotatably connected to the first side and a second track drive wheel is rotatably connected to the second side. The first and second track drive wheels each include a wheel sprocket connected to the first and second drive sprockets respectively by a drive chain. A plurality of roller wheels are rotatably connected to each of the first side and the second side. A first track surrounds the plurality of wheels on the first side and a second track surrounds the plurality of wheels on the second side. The first track is driven by the first track drive wheel and the second track is driven by the second track drive wheel. The present invention may further include a seat mounted to the upper bracket and a controller operable to control an output of the at least one motor and a steering of the wheelchair.
대표청구항▼
1. An all terrain wheelchair comprising: a frame comprising an upper bracket, a lower bracket, a first side wheel bracket and a second side wheel bracket extend from the lower bracket, wherein each of the first side wheel bracket and the second side wheel bracket terminate at a raised rear end and a
1. An all terrain wheelchair comprising: a frame comprising an upper bracket, a lower bracket, a first side wheel bracket and a second side wheel bracket extend from the lower bracket, wherein each of the first side wheel bracket and the second side wheel bracket terminate at a raised rear end and a front end, a first side, a second side;a plurality of wheels comprising, a pair of front large wheels rotatably mounted to the front end of each of the first side wheel bracket and the second side wheel bracket, a pair of rear large wheels rotatably mounted to the raised rear end of each of the first side wheel bracket and the second side wheel bracket, a plurality of roller wheels rotatably connected to each of the first side wheel bracket and the second side wheel bracket between the large front wheels and the large rear wheels;at least one motor mounted to the lower bracket and disposed in line between the pair of rear large wheels, the at least one motor comprising a first drive sprocket disposed on the first side and a second drive sprocket disposed on the second side, wherein each of the first and second drive sprockets are positioned forwardly of the rear large wheels and are rotatable by the at least one motor;a first track drive wheel rotatably connected to the first side and a second track drive wheel rotatably connected to the second side near a median portion of the frame, wherein each of the first and second track drive wheel comprises a wheel sprocket connected to one of the first and second drive sprockets by a drive chain;a first track surrounding the plurality of wheels on the first side and a second track surrounding the plurality of wheels on the second side, wherein the first track is driven by the first track drive wheel and the second track is driven by the second track drive wheel;a seat mounted to the upper bracket; anda controller operable to control an output of the at least one motor and a steering of the wheelchair. 2. The all terrain wheelchair of claim 1, wherein the first track and the second track each comprise a tread on an outer surface and a plurality of inner protrusions on an inner surface. 3. The all terrain wheelchair of claim 2, wherein the each of the first track drive wheel and the second track drive wheel comprise a plurality of teeth sequentially interlocking with the plurality of inner protrusions of each of the first track and the second track. 4. The all terrain wheelchair of claim 1, wherein the at least one motor comprises two electric motors. 5. The all terrain wheelchair of claim 4, further comprising at least one rechargeable battery mounted to the lower bracket, and electrically connected to the two electric motors. 6. The all terrain wheelchair of claim 5, wherein the battery is mounted to the lower bracket near a rear end. 7. The all terrain wheelchair of claim 1, wherein the first drive sprocket and the second drive sprocket are disposed below the first track drive wheel and the second track drive wheel. 8. The all terrain wheelchair of claim 1, further comprising at least one wheel protruding from the rear end of the frame in between the plurality of wheels on the first side and the second side. 9. The all terrain wheelchair of claim 2, further comprising a foot platform extending from a front side of the frame below the upper bracket. 10. The all terrain wheelchair of claim 9, wherein the first and second wheel brackets each terminate at a raised front end. 11. The all terrain wheelchair of claim 10, wherein the plurality of roller wheels a plurality of pairs of small wheels, each pair of small wheels mounted in between the raised front end and the raised rear end by an axle. 12. The all terrain wheelchair of claim 1, wherein the seat is a racing style seat. 13. The all terrain wheelchair of claim 1, further comprising a pair of arm rests pivotally attached to the seat. 14. The all terrain wheelchair of claim 13, wherein the controller is mounted to at least one of the pair of arm rests. 15. The all terrain wheelchair of claim 1, wherein the seat is adjustable along the upper bracket from the front end to the rear end. 16. The all terrain wheelchair of claim 1, wherein a back portion of the seat is reclinable. 17. The all terrain wheelchair of claim 1, further comprising a harness attached to the seat, wherein the harness comprises at least one shoulder strap and a waist strap.
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이 특허에 인용된 특허 (13)
Hammer Adolph, All terrain vehicle for disabled persons.
Albright, Larry E.; Homola, Gary J.; Homola, legal representative, Maria C; Koch, Rodney; Tuhy, Lance; Roan, Thomas J., Track vehicle having drive and suspension systems.
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