IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0702596
(2007-02-06)
|
등록번호 |
US-7575075
(2009-08-31)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
5 |
초록
▼
The present invention is an improved personal tracked vehicle consisting of a platform pivotally mounted on top of a housing, the platform having a right and left side and a central axis. The platform is pivotally movable between a first position wherein the right side of the platform is below the l
The present invention is an improved personal tracked vehicle consisting of a platform pivotally mounted on top of a housing, the platform having a right and left side and a central axis. The platform is pivotally movable between a first position wherein the right side of the platform is below the left side of the platform and a second position wherein the left side of the platform is below the right side of the platform. The platform has a forward portion, a rearward portion and middle portion between the two, the middle portion being arched upwardly. The vehicle further includes a pair of parallel right and left tracks mounted to the housing below the platform, the right track being coupled to a right track transmission and the left track being coupled to a left track transmission, the right and left track transmissions both being coupled to a motor for driving the transmissions. The right and left track transmissions are operatively coupled to the platform such that when the platform is pivoted towards its first position, the left track is driven faster and the right track is driven slower, and when the platform is pivoted towards its second position, the right track is driven faster and the left track is driven slower, the platform being biased towards a central position wherein the left and right drives operate at the same speed. The motor of the vehicle is mounted to the housing below the middle portion of the platform and between the tracks.
대표청구항
▼
Therefore, what is claimed is: 1. A vehicle comprising: a housing; a platform mounted on top of the housing, the platform having a right and left side and a central axis, the platform being pivotally mounted to the housing along the axis and pivotally movable between a first position wherein the ri
Therefore, what is claimed is: 1. A vehicle comprising: a housing; a platform mounted on top of the housing, the platform having a right and left side and a central axis, the platform being pivotally mounted to the housing along the axis and pivotally movable between a first position wherein the right side of the platform is below the left side of the platform and a second position wherein the left side of the platform is below the right side of the platform; a pair of parallel right and left tracks mounted to the housing below the platform, the right track being coupled to a right track drive and the left track being coupled to a left track drive, the right and left track drives being operatively coupled to the platform such that when the platform is pivoted towards its first position, the left track is driven faster and the right track is driven slower, and when the platform is pivoted towards its second position, the right track is driven faster and the left track is driven slower, the platform being biased towards a central position wherein the left and right drives operate at the same speed. 2. The vehicle of claim 1 wherein the right and left track drives are coupled to a single motor, the motor being mounted to the housing below the platform and between the tracks. 3. The vehicle of claim 2 wherein the platform is mounted to the frame by front and rear support struts, the front and rear support struts being pivotally mounted to the platform along the axis of the platform. 4. The vehicle of claim 3 wherein the platform has a forward upraised section and a rearward upraised section and a central portion between the forward and rearward sections, the forward and rearward upraised sections extending at an acute angle from the central portion. 5. The vehicle of claim 4 wherein the forward support strut is mounted to the platform at a point on the platform adjacent the forward upraise section and wherein the rearward support strut is mounted to the platform at a point on the platform adjacent the rearward upraised section. 6. The vehicle of claim 5 wherein the central portion of the platform is arched upwards such that the platform has a substantially W shaped profile in long section. 7. The vehicle of claim 2 wherein right track drive means and the left track drive means each comprise continuously variable transmissions, the continuously variable transmissions being coupled to a differential, the differential selectively operative between a right drive bias wherein the right drive means is driven faster than the left drive means and a left drive bias wherein the left drive means is driven faster than the right drive means, the differential being operatively coupled to the platform such that when the platform is moved towards its first position, the differential is operated towards its left drive bias and when the platform is moved towards its second position, the differential is operated towards its right drive bias. 8. The vehicle of claim 7 wherein the right and left continuously variable transmissions comprise first and second pulleys, respectively, the first and second pulleys having selectively variable diameters, the relative diameters of the first and second pulleys being selected by the differential. 9. The vehicle of claim 8 wherein the first and second pulleys comprise a first and second pair of opposing cones, respectively, the first and second pulleys being coaxially aligned and adjacent to one another such that one cone of each pulley are adjacent, and wherein the differential comprises a member physically coupled to said one cone of each pulley, the differential being selectively movable between a first and second position corresponding to the differential's left and right biases, respectively. 10. The vehicle of claim 9 wherein the member is coupled to the platform by a cable, the cable moving the member between the member's first and second position in response to the movement of the platform between the platform's first and second positions, respectively. 11. The vehicle of claim 6 wherein the motor is mounted beneath the central section of the platform. 12. The vehicle of claim 4 wherein right track drive means and the left track drive means each comprise continuously variable transmissions, the continuously variable transmissions being coupled to a differential, the differential selectively operative between a right drive bias wherein the right drive means is driven faster than the left drive means and a left drive bias wherein the left drive means is driven faster than the right drive means, the differential being operatively coupled to the platform such that when the platform is moved towards its first position, the differential is operated towards its left drive bias and when the platform is moved towards its second position, the differential is operated towards its right drive bias. 13. The vehicle of claim 12 wherein the right and left continuously variable transmissions comprise first and second pulleys, respectively, the first and second pulleys having selectively variable diameters, the relative diameters of the first and second pulleys being selected by the differential. 14. The vehicle of claim 13 wherein the first and second pulleys comprise a first and second pair of opposing cones, respectively, the first and second pulleys being coaxially aligned and adjacent to one another such that one cone of each pulley are adjacent, and wherein the differential comprises a member physically coupled to said one cone of each pulley, the differential being selectively movable between a first and second position corresponding to the differential's left and right biases, respectively. 15. The vehicle of claim 14 wherein the member is coupled to the platform by a cable, the cable moving the member between the member's first and second position in response to the movement of the platform between the platform's first and second positions, respectively. 16. A vehicle comprising: a housing; a platform mounted on top of the housing, the platform having a front and a rear end, a right and left side and a central axis, the platform being pivotally mounted to the housing along the axis and pivotally movable between a first position wherein the right side of the platform is below the left side of the platform and a second position wherein the left side of the platform is below the right side of the platform; the platform having a forward portion, a rearward portion and middle portion between the two, the middle portion being arched upwardly; a pair of parallel right and left tracks mounted to the housing below the platform, the right track being coupled to a right track transmission and the left track being coupled to a left track transmission, the right and left track transmissions being coupled to a motor for driving the transmissions, the right and left track transmissions being operatively coupled to the platform such that when the platform is pivoted towards its first position, the left track is driven faster and the right track is driven slower, and when the platform is pivoted towards its second position, the right track is driven faster and the left track is driven slower, the platform being biased towards a central position wherein the left and right drives operate at the same speed; the motor being mounted to the housing below the middle portion of the platform and between the tracks. 17. The vehicle of claim 16 wherein the left and right transmissions are continuously variable transmissions capable of driving their respective tracks at different speeds, and further comprising a differential coupled to the right and left transmissions for controlling the relative speed of the tracks, the differential operating between a right bias wherein the right track is driven faster than the left track and a left bias wherein the left track is driven faster than the right track, the differential being operatively coupled to the platform. 18. The vehicle of claim 17 wherein the right transmission comprises a first pulley having a variable diameter coupled to the motor by a first belt, the first pulley in turn being coupled to the right track and wherein the left transmission comprises a second pulley having a variable diameter coupled to the motor by a second belt, the second variable diameter pulley in turn being coupled to the left track, and wherein the differential controls the relative diameters of the first and second pulleys. 19. The vehicle of claim 18 wherein the first and second pulleys comprise a first and second pair of opposing cones, respectively, the first and second pulleys being coaxially aligned and adjacent to one another such that one cone of each pulley are adjacent, and wherein the differential comprises a member physically coupled to said one cone of each pulley, the differential being selectively movable between a first and second position corresponding to the differential's left and right biases, respectively. 20. The vehicle of claim 19 wherein the member is coupled to the platform by a cable, the cable moving the member between the member's first and second position in response to the movement of the platform between the platform's first and second positions, respectively.
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