[특허]Sled device

Nguyen,Thien V.

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Sled device

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62B-013/18 B62B-013/00
미국특허분류(USC)	280/009; 280/010; 280/086.5; 280/638; 280/008; 280/007.12; 280/043.22; 280/043.24; 280/024; 280/043.14
출원번호	US-0844077 (2007-08-23)
등록번호	US-7419167 (2008-09-02)
발명자 / 주소	Nguyen,Thien V.
출원인 / 주소	Nguyen,Thien V.
인용정보	피인용 횟수 : 2 인용 특허 : 6

초록
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A sled device for permitting transportation of a person and cargo over a variety of surfaces includes a sled including a bottom wall and a perimeter wall that extends upwardly from the bottom wall to define a receiving space of the sled to receive the person and cargo. The bottom wall is slidable along a soft support surface. A front wheel assembly is rotatably coupled to the sled and is rotatable between a deployed position and a stowed position. The front wheel assembly engages and rolls along a hard support surface when the front wheel assembly is in the deployed position. A plurality of rear wheel assemblies is pivotally coupled to the sled and each is pivotable between a lowered position and a raised position. The rear wheel assemblies engage and roll along the hard support surface when the rear wheel assemblies are in the lowered position.

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I claim: 1. A sled device for transporting a person and cargo over a variety of surfaces, said device comprising: a sled including a bottom wall and a perimeter wall extending upwardly from said bottom wall to define a receiving space of said sled, said receiving space receiving the person and cargo, said bottom wall being slidable along a soft support surface to facilitate transportation of the person and the cargo; a front wheel assembly being rotatably coupled to said sled, said front wheel assembly being rotated between a deployed position and a stowed position, said front wheel assembly engaging and rolling along a hard support surface to facilitate transport of said sled over the hard support surface when said front wheel assembly is in said deployed position; and a plurality of rear wheel assemblies being pivotally coupled to said sled, each of said rear wheel assemblies being pivoted between a lowered position and a raised position, said rear wheel assemblies engaging and rolling along the hard support surface when said rear wheel assemblies are in the lowered position, a medial section of a support bar is positioned under said bottom wall of said sled when said front wheel assembly is in the deployed positioned, said medial section of said support bar being positioned above said top face of said sled when said front wheel assembly is in the stowed position, each of said front wheels being coupled to said medial portion of said support bar. 2. The device according to claim 1, wherein a front face of said sled arcuately extends backwardly from a top face of said sled to said bottom wall to force said bottom wall to rise over variations in the soft support surface. 3. The device according to claim 1, wherein said sled includes a plurality of ridges extending downwardly from said bottom wall and extending along portion of a length of said sled, said ridges extending into the soft support surface to inhibit lateral movement of said sled. 4. The device according to claim 1, wherein said sled has a towing aperture extending through said perimeter wall to permit the perimeter wall to be grasped to facilitate towing of said sled. 5. The device according to claim 1, wherein said front wheel assembly includes a support bar being rotatably coupled to said sled and positioned adjacent a front face of said sled, said support bar being approximately U-shaped, each of a pair of side faces of said sled having one a pair of opposing ends of said support bar being rotatably coupled thereto. 6. The device according to claim 5, wherein said front wheel assembly includes a pair of front wheels being coupled to said support bar said front wheels extending between said support bar and the hard support surface to permit said front wheels to roll along the hard support surface when said front wheel assembly is in the deployed position, said front wheels extending into said receiving space of said sled when said front wheel assembly is in the stowed position. 7. The device according to claim 1, wherein each of said rear wheel assemblies includes a bracket arm being pivotally coupled to said sled and positioned adjacent a rear face of said sled, a secured end of said bracket arm being pivotally coupled to one of a pair of side faces of said sled. 8. The device according to claim 7, wherein said bracket arm being approximately L-shaped. 9. The device according to claim 7, wherein each of said rear wheel assemblies includes a rear wheel being coupled to said bracket, said rear wheel being positioned under said bottom wall of said sled to roll along the hard support surface when the associated one of said rear wheel assemblies is in the lowered position, said rear wheel being positioned adjacent to and outwardly extending from an associated one of said side faces when the associated one of said rear wheel assemblies is in the raised position. 10. The device according to claim 9, wherein said rear wheel is positioned adjacent a free end of said bracket arm positioned distal to said secured end. 11. The device according to claim 1, further comprising a pair of extension plates, each of a pair of side faces of said sled having one of said extension plates being coupled thereto, each of said extension plates being positioned adjacent a top face of said sled. 12. The device according to claim 11, wherein each of said extension plates has a hand aperture extending therethrough to permit a hand to be extended through said hand aperture to grip a portion of the associated one of said extension plates by the person in said sled. 13. A sled device for transporting a person and cargo over a variety of surfaces, said device comprising: a sled including a bottom wall and a perimeter wall extending upwardly from said bottom wall to define a receiving space of said sled, said receiving space receiving the person and cargo, said bottom wall being slidable along a soft support surface to facilitate transportation of the person and the cargo, a front face of said sled arcuately extending backwardly from a top face of said sled to said bottom wall to force said bottom wall to rise over variations in the soft support surface, said sled including a plurality of ridges extending downwardly from said bottom wall and extending along portion of a length of said sled, said ridges extending into the soft support surface to inhibit lateral movement of said sled, said sled having a towing aperture extending through said perimeter wall to permit the perimeter wall to be grasped to facilitate towing of said sled; a front wheel assembly being rotatably coupled to said sled, said front wheel assembly being rotated between a deployed position and a stowed position, said front wheel assembly engaging and rolling along a hard support surface to facilitate transport of said sled over the hard support surface when said front wheel assembly is in said deployed position, said front wheel assembly including; a support bar being rotatably coupled to said sled and positioned adjacent said front face of said sled, said support bar being approximately U-shaped, each of a pair of side faces of said sled having one a pair of opposing ends of said support bar being rotatably coupled thereto, a medial section of said support bar being positioned under said bottom wall of said sled when said front wheel assembly is in the deployed positioned, said medial section of said support bar being positioned above said top face of said sled when said front wheel assembly is in the stowed position; a pair of front wheels being coupled to said support bar, each of said front wheels being coupled to said medial portion of said support bar, said front wheels extending between said support bar and the hard support surface to permit said front wheels to roll along the hard support surface when said front wheel assembly is in the deployed position, said front wheels extending into said receiving space of said sled when said front wheel assembly is in the stowed position; a plurality of rear wheel assemblies being pivotally coupled to said sled, each of said rear wheel assemblies being pivoted between a lowered position and a raised position, said rear wheel assemblies engaging and rolling along the hard support surface when said rear wheel assemblies are in the lowered position, each of said rear wheel assemblies comprising; a bracket arm being pivotally coupled to said sled and positioned adjacent a rear face of said sled, a secured end of said bracket arm being pivotally coupled to one of said side faces of said sled, said bracket arm being approximately L-shaped; a rear wheel being coupled to said bracket and positioned adjacent a free end of said bracket arm positioned distal to said secured end, said rear wheel being positioned under said bottom wall of said sled to roll along the hard support surface when the associated one of said rear wheel assemblies is in the lowered position, said rear wheel being positioned adjacent to and outwardly extending from an associated one of said side faces when the associated one of said rear wheel assemblies is in the raised position; and a pair of extension plates, each of said side faces of said sled having one of said extension plates being coupled thereto, each of said extension plates being positioned adjacent said top face of said sled, each of said extension plates having a hand aperture extending therethrough to permit a hand to be extended through said hand aperture to grip a portion of the associated one of said extension plates by the person in said sled.

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이 특허를 인용한 특허 피인용횟수: 2

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Sled device

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Sled device

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이 특허에 인용된 특허 (6)

이 특허를 인용한 특허 피인용횟수: 2

IPC 상위 출원인

과제정보

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IPC 상세정보(version : 201201)

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