IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0331558
(2002-12-31)
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발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
Knobbe, Martens, Olson & Bear, LLP
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인용정보 |
피인용 횟수 :
8 인용 특허 :
31 |
초록
▼
A cambering vehicle includes a single steerable front wheel and a pair of rear wheels at the rearward ends of trailing arms extending from the front structure. The two arms are articulated to the front structure, and move arcuately in planes parallel to the steering column. In one embodiment the arm
A cambering vehicle includes a single steerable front wheel and a pair of rear wheels at the rearward ends of trailing arms extending from the front structure. The two arms are articulated to the front structure, and move arcuately in planes parallel to the steering column. In one embodiment the arms are linked by a yoke, and traverse equal arcuate distances in opposite directions relative to one another. In another embodiment the yoke is replaced by a transverse link, with elastomer bushings connecting the link ends to their respective arms. The vehicle operates using the principle of conservation of angular momentum, with the vehicle traveling a sinusoidal path and the operator leaning to the inside of the turn. This moves the center of gravity of the vehicle and operator to the inside of the turn, thus accelerating vehicle and operator along the turning path to increase velocity of the device.
대표청구항
▼
1. A tricycle comprising:a front tube;a handlebar frame comprising an upright portion which is received in said front tube, and a grip portion extending from two sides of the top end of said upright portion;a front fork comprising two side wings extending from the bottom end of said upright portion
1. A tricycle comprising:a front tube;a handlebar frame comprising an upright portion which is received in said front tube, and a grip portion extending from two sides of the top end of said upright portion;a front fork comprising two side wings extending from the bottom end of said upright portion such that the free ends of said side wings are provided with a shaft connection portion;a front wheel fastened with said shaft connection portion;two footboard frames fastened with two sides of said front tube and formed of a bottom tube which is pivoted at the front end with said front tube, a footboard fastened with the rear end of said bottom tube, and a rear wheel fastened beneath said footboard, said bottom tube being provided with a through hole for disposing a buffer member of an elastic material and having at the center thereof a through hole;a swiveling member pivoted to the rear end of said front tube and provided in two sides thereof with an insertion pillar, which is received in said through hole of said buffer member. 2. The tricycle as defined in claim 1, wherein said front tube is provided at the front end with a pivoting seat which is provided in the center thereof with a pivoting hole; wherein said bottom tubes are provided at the front end with a pivoting hole whereby said bottom tubes and said front tube are pivoted together by a pivot which is received in said pivoting holes of said pivoting seat and said bottom tubes. 3. The tricycle as defined in claim 1, wherein said buffer member is provided in an outer edge with an outer protective tube in contact with the inner edge of said through hole of said bottom tubes. 4. The tricycle as defined in claim 3, wherein said through hole of said buffer member is provided in periphery thereof with an inner protective tube in contact with the outer edge of said insertion pillar of said swiveling member. 5. The tricycle as defined in claim 1, wherein said through hole of said buffer member is provided in periphery with an inner protective tube urging said insertion pillar of said swiveling member. 6. The tricycle as defined in claim 1, wherein said buffer member has an arcuate side allowing said buffer member a greater deformation. 7. The tricycle as defined in claim 1, wherein said front tube is provided at the rear end with a protruded pillar; wherein said swiveling member is provided with a through hole for receiving said protruded pillar whereby said protruded pillar is provided with a threaded hole which is engaged with a bolt for fastening said swiveling member with said front tube. 8. A cambering vehicle, comprising:a frame comprising a forward column, a left trailing arm and a right trailing arm, the front column having an upper end and a lower end opposite said upper end;each of the left and right trailing arms having a forward end and a rearward end opposite said forward end, each of the forward ends being pivotally mounted on a forward side of the forward column;a pivot member having a left end and a right end, the pivot member being pivotally mounted to a rear side of the forward column; andleft and right elastomeric connectors respectively connecting the left end of the pivot member with the left trailing arm and the right end of the pivot member with the right trailing arm. 9. The vehicle according to claim 8, additionally comprising first and second folding means disposed on said first and second trailing arms, respectively, for allowing said first and second trailing arms to be folded. 10. The vehicle according to claim 8, wherein the left and right trailing arms respectively comprise left and right tubular portions disposed rearwardly from the pivot member, the vehicle additionally comprising first and second hinges disposed respectively on the left and right tubular portions. 11. The vehicle according to claim 10, wherein the left and right tubular portions extend outwardly and rearwardly from the pivot member. 12. The vehicle according to claim 8, wherein the pivot member further comprises a single torsionally and arcuately rigid rod having a pivot passage centrally disposed therethrough for pivotally securing the pivot member to a pivot attachment point on the rear side of the forward column. 13. The vehicle according to claim 12, wherein each of the left and right ends of the pivot member includes an elastomeric bushing, the bushing comprising an elastomer material. 14. The vehicle according to claim 8, additionally comprising forward, left, and right surface contact means respectively mounted at the forward column, the rearward end of the left trailing arm, and the rearward end of the right trailing arm. 15. The vehicle according to claim 14, wherein said forward, left and right surface contact means comprise at least one of wheels, wheeled skates, ice skates, and skis. 16. A cambering vehicle, comprising:a frame comprising a forward column, a left trailing arm and a right trailing arm, the front column having an upper end and a lower end opposite said upper end;each of the left and right trailing arms having a forward end and a rearward end opposite said forward end, each of the forward ends being pivotally mounted relative to the forward column;a pivot member having a left end and a right end, the pivot member being pivotally mounted relative to the forward column; andleft and right hinges disposed respectively on the left and right trailing arms rearwardly from the pivot member;wherein the forward ends of the left and right trailing arms are pivotally mounted to a forward side of the forward column, the pivot member being pivotally mounted to a rearward side of the forward column. 17. The vehicle according to claim 16, wherein the left and right trailing arms comprise left and right tubular portions, respectively, extending rearwardly from the pivot member. 18. The vehicle according to claim 17, wherein the left and right tubular portions extend outwardly and rearwardly from the pivot member. 19. The vehicle according to claim 18, wherein the left and right hinges are disposed on the left and right tubular portions, respectively. 20. The vehicle according to claim 16, additionally comprising forward, left and right surface contact means comprising at least one of wheels, wheeled skates, ice skates, and skis. 21. The vehicle as set forth in claim 16, wherein said pivot member is permanently attached to the forward column. 22. The vehicle as set forth in claim 16 additionally comprising forward, left and right surface contact means respectively supporting the forward column, the rearward end of the left trailing arm, and the rearward end of the right trailing arm. 23. The vehicle as set forth in claim 22, wherein the forward column defines a steering axis of the vehicle about which the forward surface contact means pivots, the forward contact means being a wheel configured to rotate about a wheel axis, the wheel axis being offset from the steering axis. 24. The vehicle as set forth in claim 23, wherein the wheel axis is offset rearwardly from the steering axis.
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