A personal transportation device having first and second elongated foot support member that are arranged substantially in parallel and approximate to some extent the experience of skiing. The lateral distance of the foot support members may be adjusted. Biased-direction caster wheels may be provided
A personal transportation device having first and second elongated foot support member that are arranged substantially in parallel and approximate to some extent the experience of skiing. The lateral distance of the foot support members may be adjusted. Biased-direction caster wheels may be provided that permit propulsion from side to side movement as well as kicking off and other propulsion techniques. Tiltable steering assemblies are disclosed that may impart a tilting of a front wheel to achieve turning. Various embodiments are disclosed.
대표청구항▼
1. A personal transportation device, comprising: a first elongated foot support member;a first front caster wheel assembly and a first rear caster wheel assembly that are coupled to the first foot support member, the first front caster wheel assemble including a first biased-direction caster wheel;a
1. A personal transportation device, comprising: a first elongated foot support member;a first front caster wheel assembly and a first rear caster wheel assembly that are coupled to the first foot support member, the first front caster wheel assemble including a first biased-direction caster wheel;a second elongated foot support member;a second front caster wheel assembly and a second rear caster wheel assembly that are coupled to the second foot support member, the second front caster wheel assembly including a second biased-direction caster wheel;a linkage assembly coupled to the first and second foot support members and configured to maintain the foot support members in a substantially parallel arrangement with one another; anda first ascending steering member;wherein the first caster wheel and the first ascending steering member are coupled to one another and configured such that, in use, lateral movement of the first ascending member causes a turning of the first caster wheel. 2. The device of claim 1, wherein the linkage assembly is configured for releaseable locking of the first and second foot support members in a first position and a second position, and the lateral spacing between the first and second foot support members in the first position is different from that in the second position. 3. The device of claim 2, wherein the linkage assembly is configured for releaseable locking of the first and second foot support members in a third position, the spacing between the first and second foot support members in the third position being different from that in the first and second positions. 4. The device of claim 1, wherein the lateral movement of the first ascending steering member may include at least one of laterally tiltable movement and movement more perpendicular-than-parallel to a straight-forward line of direction of travel of the device. 5. The device of claim 1, wherein the first and second rear caster wheel assemblies each include a biased-direction caster wheel. 6. The device of claim 1, further comprising a second ascending steering member, and wherein the second caster wheel and the second ascending steering member are coupled to one another and configured such that, in use, lateral movement of the second ascending member causes a turning of the second caster wheel. 7. The device of claim 6, wherein the first and second ascending steering members are movable between an upright and a stowed position. 8. The device of claim 1, wherein the direction of turn of the first caster wheel corresponds to the direction of lateral movement of the first ascending steering member. 9. The device of claim 1, wherein the first and second foot support members are elongated in the direction of straight forward travel of the device. 10. A personal transportation device, comprising: a first longitudinally elongated foot support member;a first front caster wheel assembly and a first rear caster wheel assembly that are coupled to the first foot support member, the first front caster wheel assembly including a first biased-direction caster wheel;a second longitudinally elongated foot support member;a second front caster wheel assembly and a second rear caster wheel assembly that are coupled to the second foot support member, the second front caster wheel assembly including a second biased-direction caster wheel;a linkage assembly coupled to the first and second foot support members and configured to maintain the foot support members in a coupled together arrangement during use; anda first ascending steering member;wherein the first caster wheel and the first ascending steering member are configured such that, in use, lateral tilting of the first ascending member causes a turning of the first caster wheel. 11. The device of claim 10, further comprising a second ascending steering member, and wherein the second caster wheel and the second ascending steering member are configured such that, in use, lateral tilting of the second ascending member causes a turning of the second caster wheel. 12. The device of claim 11, wherein the first and second ascending steering members are movable between an ascending and a stowed position. 13. The device of claim 10, wherein the first and the second biased-direction caster wheels each have a tilted turning axis. 14. The device of claim 10, wherein the linkage assembly is configured to maintain the foot support members in a substantially parallel arrangement, and for releaseable locking of the first and second foot support members in a first position and a second position, the lateral spacing between the first and second foot support members in the first position being different than that in the second position. 15. The device of claim 14, wherein the linkage assembly is configured for releaseable locking of the first and second foot support members in a third position, the spacing between the first and second foot support members in the third position being different than that in the first and second positions. 16. The device of claim 10, wherein the first and second rear caster wheel assemblies each include a biased-direction caster wheel. 17. A personal transportation device, comprising: a first longitudinally elongated foot support member;a first front caster wheel assembly and a first rear caster wheel assembly that are coupled to the first foot support member, the first front caster wheel assembly including a first biased-direction caster wheel;a second longitudinally elongated foot support member;a second front caster wheel assembly and a second rear caster wheel assembly that are coupled to the second foot support member, the second front caster wheel assembly including a second biased-direction caster wheel;a linkage assembly coupled between the first and second elongated foot support members and configured to maintain the support members in a substantially parallel arrangement with one another; anda first ascending steering member;wherein the first caster wheel and the first ascending steering member are configured such that, in use, movement of the first ascending member causes a turning of the first caster wheel; andwherein the linkage assembly is configured for releaseable locking of the first and second foot support members in a first position and a second position, and the spacing between the first and second foot support members in the first position is different than that spacing in the second position. 18. The device of claim 17, wherein the linkage assembly is configured for releaseable locking of the first and second foot support members in a third position, the spacing between the first and second foot support members in the third position being different than that in the first and second positions. 19. The device of claim 17, further comprising a second ascending steering member, and wherein the second caster wheel and the second ascending steering member are configured such that, in use, movement of the second ascending member causes a turning of the second caster wheel. 20. The device of claim 17, wherein the first and second rear caster wheel assemblies each include a biased-direction caster wheel.
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이 특허에 인용된 특허 (22)
Denzer Richard E. (Bloomfield Hills MI), Cambering device for cambering vehicle.
McDonald ; deceased Benjamin J. (27604 Sand Canyon Rd. LATE OF Canyon Country CA) McDonald ; administratrix by Dorothy H. (27604 Sand Canyon Rd. Canyon Country CA 91351), Roller ski apparatus with spring suspension.
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