IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0386179
(2003-03-11)
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발명자
/ 주소 |
- Lear, Jennifer
- Wolf, Wade M.
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
16 |
초록
▼
A maneuverable, brakeable, roll resistant high performance snow sled suitable for use on downwardly sloping terrain. The preferred embodiment of the sled embodies a tandem, mirror image, in-line suspension and shock absorbing system connecting the main frame member upon which a seat is mounted to a
A maneuverable, brakeable, roll resistant high performance snow sled suitable for use on downwardly sloping terrain. The preferred embodiment of the sled embodies a tandem, mirror image, in-line suspension and shock absorbing system connecting the main frame member upon which a seat is mounted to a snow board type runner. Roll stability is achieved utilizing stabilizer wings attached to each side of the main frame member embodying a torsion resistance mechanism. Speed control, stopping and turning of the sled is accomplished utilizing an independently operable braking system.
대표청구항
▼
1. A steerable, brakeable, roll stable snow sled comprising:a main longitudinal frame member having an elongated portion;seating means attached upon the elongated portion of said main longitudinal frame member and rearward of the mid-portion thereof;foot support means upwardly disposed and attached
1. A steerable, brakeable, roll stable snow sled comprising:a main longitudinal frame member having an elongated portion;seating means attached upon the elongated portion of said main longitudinal frame member and rearward of the mid-portion thereof;foot support means upwardly disposed and attached to the elongated portion of said main longitudinal frame member at the front portion thereof;stabilizer wings laterally disposed directly opposite of each other on each side of and longitudinally rotatably attached to the elongated portion of said main longitudinal frame member such that the rear portion thereof is laterally aligned approximately with the front portion of said seating means and having attached at the distal portion thereof, an elongated stabilizer runner extending downwardly and aligned generally perpendicular to said stabilizer wings and positioned such that the elongated portion of said stabilizer runner is aligned parallel to the elongated portion of said main longitudinal frame member;resistance torsion means situated on the inboard portion of each of said stabilizer wings and generally parallel to the elongated portion of said main longitudinal frame member and being a point of attachment of said stabilizer wings to said main longitudinal frame member;in-line, two stage suspension and shock absorbing means hingedly connected at the upper portion thereof to the mid portion of the elongated portion of said main longitudinal frame member and extending downwardly therefrom;a main runner attached at its upper surface and approximately at the mid-portion thereof to a base plate hingedly attached to the lower portion of said suspension and shock absorbing means; andbraking means.2. The snow sled of claim 1 wherein said in-line suspension and shock absorbing means comprises a damper bar attached at the upper portion thereof by upper damper hinge means to top damper attachment means for attachment thereof to the elongated portion of said main longitudinal frame member and attached at the lower portion thereof by lower damper hinge means to base plate connecting bar hingedly attached at the lower portion thereof to a base plate for attachment to said main runner and which suspension and shock absorbing means further comprises a shock absorber disposed longitudinally in-line with said damper bar and rearward thereof, attached at the upper portion thereof by upper shock absorber hinge means to top shock absorber attachment means for attachment to the elongated portion of said main longitudinal frame member and attached at the lower portion thereof by lower shock absorber hinge means to a base plate for attachment to said main runner.3. The snow sled of claim 2 wherein said in-line suspension and shock absorbing means is slideably, adjustably attached to the elongated portion of said longitudinal main frame member by said top damper attachment means and said top shock absorber attachment means and to said main runner by said base plate such that said damper bar and said shock absorber from their points of attachment to said upper damper attachment means and said top shock absorber attachment means respectively, are disposed downward and angularly inward towards each other to the point of attachment to said base plate connecting bar and said base plate respectively, and such that the angle of said damper bar is from about thirty degrees to about sixty degrees and such that the angle of said shock absorber is from about forty degrees to about fifty degrees.4. The snow sled of claim 3 wherein there is a first in-line suspension and shock absorbing means and a second in-line suspension and shock absorbing means attached to the elongated portion of said main longitudinal frame member and said base plate, and positioned such that the second in-line suspension and shock absorbing means is rearward of and in mirror image, tandem relationship to said first in-line suspension and shock absorbing means.5. The snow sled of claim 4, wherein said fit in-line suspension and shock absorber means is attached to said main longitudinal frame member and said base plate such that the point of attachment thereof to said main longitudinal frame member is generally forward of the midpoint thereof and the second in-line suspension and shock absorber means is positioned such that the top shock absorber attachment means point of attachment to said main longitudinal frame member is from about zero inches to about ten inches rearward of the top shock absorber attachment means point of attachment to said main longitudinal frame member of said first in-line suspension and shock absorbing means.6. The snow sled of claim 2 wherein the portion of the base plate connected to the base plate connecting bar contains a damper stop bar to restrict the travel of said damper bar such that said main longitudinal frame member is restricted from contacting said main runner during operation of said sled.7. The snow sled of claim 2 wherein said shock absorber is a coil over gas shock absorber.8. The snow sled of claim 1 wherein said resistance torsion means comprises an elongated, cylindrical torsion bar having communicating apertures generally at each end thereof for attachment to stabilizer wing coupling portion of stabilizer wing attachment brackets for attachment to said main longitudinal frame member; a compression plate fixably attached to said torsion bar; and a cylindrical torsion bushing partially encompassing that portion of said torsion bar containing said compression plate from the top portion of said compression plate and terminating at a stop plate forming a portion of a resistance torsion bushing housing.9. The resistance torsion means of claim 8 wherein said resistance torsion bushing comprises a compressible material selected from the group consisting essentially of rubber, polymeric materials and molded plastic having a durometer of from about thirty to about seventy.10. The resistance torsion means of claim 9 wherein said resistance torsion bushing comprises urethane having a durometer of about fifty.11. The snow sled of claim 1 wherein said stabilizer wings are attached to the elongated portion of said main longitudinal frame member by stabilizer wing coupling means portion of stabilizer wing attachment brackets adjustably, slideably attached to the elongated portion of said main longitudinal frame member.12. The snow sled of claim 11 wherein said stabilizer wings are detachable from said stabilizer wing attachment brackets.13. The snow sled of claim 11 wherein said stabilizer wings laterally extend from their point of attachment to said main longitudinal frame member is from about forty eight inches to about sixty inches and the width thereof from the front to the rear at the point of attachment to stabilizer wing attachment brackets is from about ten inches to about thirty inches.14. The snow sled of claim 1 wherein said stabilizer wings contain means for housing resistance torsion means at the portion thereof inboard and generally parallel to the elongated portion of said main longitudinal frame member when said stabilizer wings are attached thereto.15. The snow sled of claim 1 wherein said braking means comprises an independently operable hand brake lever situated on each stabilizer wing, attached to a rotatable brake shaft, which rotatably communicates by linkage means with a rotatable brake pad shaft having a brake pad attached thereto, said rotatable brake shaft, linkage means, rotatable brake pad shaft and brake pad being positioned within said stabilizer wing.16. The snow sled of claim 15 wherein said braking means for controlling the speed and stopping of said sled is positioned within each stabilizer wing near the trailing edge thereof and such that an operator activates braking by rotating said hand brake lever rearward.17. The snow sled of claim 1 wherein said braking means for controlling the speed and stopping of said sled comprises independently operated left and right foot brake pedals mounted upon the front portion of the elongated portion of said main longitudinal frame member, independently attached to linkage means communicating with a left and a right brake pad pivotally attached to the rearward, lower portion of said snow sled such that when said foot pedal is depressed by the operator of said snow sled, the brake pad corresponding to the foot brake pedal depressed.18. The snow sled of claim 1 wherein said main runner comprises a snowboard.19. The snow sled of claim 1 wherein said seating means comprises a bucket seat slideably, adjustably attached to the elongated portion of said main longitudinal frame member.20. The snow sled of claim 1 wherein said foot support means is slideably, adjustably attached to the elongated portion of said main longitudinal frame member.21. The snow sled of claim 1 which further comprises a front protective cowling removably attached to the front portion of the elongated portion of said main longitudinal frame and in forward of said foot support means and extending upwardly and rearward and terminating forward of said seating means and a rear protective cowling removably attached to the rear portion of the elongated portion of said main longitudinal frame member and rearward of said seating means and extending forward and upward and terminating at the rear portion of said seat.22. A steerable, brakeable, roll resistant snow sled which comprises:a main longitudinal fame member having an elongated portion, wherein the elongated portion has a length of from thirty-six inches to about seventy-two inches;a bucket seat upwardly disposed and adjustably, slideably attached to the elongated portion of said main longitudinal frame member generally rearward of the mid-point thereof;foot support means upwardly disposed and adjustably, slideably attached to the elongated portion of said main frame member at the front portion thereof;a stabilizer wing removably, and adjustably attached to and on each side of the elongated portion of said main longitudinal frame member by a stabilizer wing coupling means portion of stabilizer wing attachment means and positioned laterally directly opposite each other approximately at the mid-position of said main longitudinal frame member and being limitedly rotatable upwardly and downwardly relative to the elongated portion of said main longitudinal frame member and having attached thereto at the inboard portion thereof and positioned generally parallel to the elongated portion of said main longitudinal frame member, resistance torsion means comprising an elongated cylindrical shaped torsion bar having communicating apertures generally at each end portion thereof for attachment of said stabilizer wing to said main frame member by said stabilizer wing coupling portion of stabilizer wing attachment means and further comprising a stop plate attached thereto and a cylindrical limitedly compressible torsion bushing encompassing that portion of said torsion bar containing a compression plate from the top portion of said compression plate and terminating at a stop plate positioned within said stabilizer wing to which said torsion resistance means is attached and further, wherein each said stabilizer wing has attached at the distal portion thereof, an elongated stabilizer runner extending downward and generally perpendicular to said stabilizer wing and positioned such that the elongated portion of said stabilizer runner is aligned generally parallel to the elongated portion of said main longitudinal frame member;a first in-line suspension and shock absorbing means and a second in-line suspension and shock absorbing means, each comprising a damper bar hingedly attached at the upper portion thereof to top damper attachment means and the lower portion of said damper bar hingedly attached to a base plate connecting bar, attached to a base plate by base plate hinge means, said base plate having a damper stop bar, and further comprising a shock absorber disposed longitudinally, in-line with said damper bar, hingedly attached at the upper portion thereof to top shock absorber attachment means and hingedly attached at the lower portion thereof to the shock absorber attachment portion of the base plate and wherein said first in-line suspension and shock absorbing means is slideably, adjustably attached to the elongated portion of said main longitudinal frame member by said top damper attachment means and said top shock absorber attachment means, wherein said first in-line suspension and shock absorbing means is positioned immediately forward of the mid-portion of the elongated portion of said main longitudinal frame member and such that said damper bar is disposed forward of said shock absorber and further, wherein said base plate hingedly attached to said base plate connecting bar is attached to a main runner at the lateral mid-line thereof and immediately forward of the midpoint of the elongated portion thereof and such that said damper bar at its point of attachment to base plate connecting bar has an angle upward and forward of from about thirty degrees to about sixty degrees and wherein said shock absorber attachment portion of said base plate is attached to a main runner at the lateral mid-line thereof and immediately forward of the midpoint of the elongated portion thereof and such that said shock absorber at its point of attachment to said base plate has an angle upward and rearward of from about forty degrees to about fifty degrees, and wherein said second in-line suspension and shock absorbing means is similarly attached to the elongated portion of said main longitudinal frame member and said main runner, rearward of said first in-line suspension and shock absorbing means relative to the front portion of said snow sled in tandem and mirror image relation to said first in-line suspension and shock absorbing means;an elongated main runner comprising a generally flat surface with a generally upwardly curved front and rear portions attached at the upper surface and generally at the lateral mid-point and longitudinal mid-portion thereof to said base plates; andbraking means positioned within each stabilizer wing comprising an independently operable hand brake lever fixably attached to a rotatable brake shaft which communicates by linkage means to a rotatable brake pad shaft to which is fixably attached a brake pad, which when deployed contacts the snow surface.23. The snow sled of claim 22 which further comprises a front protective cowling removably attached to the front portion of the elongated portion of said main longitudinal frame member and forward of said foot support means and extending upwardly and rearward therefrom and terminating forward of the front portion of said bucket seat, and a rear protective cowling removably attached to the rear portion of the elongated portion of said main longitudinal frame member and of said bucket seat and extending forward therefrom and upward, terminating at the rear portion of said bucket seat.24. The snow sled of claim 22 wherein said main runner is a snowboard.
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