[특허]Skateboard / longboard truck with improved mechanical advantage

Skateboard / longboard truck with improved mechanical advantage 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A63C-017/01 A63C-017/00 B62M-001/00
출원번호	US-0537876 (2014-11-10)
등록번호	US-9199158 (2015-12-01)
발명자 / 주소	Docter, Lloyd W. Mackey, Timothy R.
출원인 / 주소	DASHBOARDS SKIMBOARDS COMPANY, LLC
대리인 / 주소	Cernyar, Eric W.
인용정보	피인용 횟수 : 0 인용 특허 : 39

초록 ▼

A skateboard or longboard truck comprises a hanger and a baseplate assembly. A redesigned hanger, a large ball pivot, a load-redirecting pivot cup, a tapered kingpin and other improvements give the hanger a high kingpin ratio and a high angle of mechanical advantage, thereby improving the performanc

대표청구항 ▼

1. A skateboard or longboard truck comprising: a ball pivot hanger including a structural member oriented along a lateral axis and configured to support two wheels, a ball pivot extending out perpendicularly from the structural member, and a bushing seat and kingpin aperture located between the structural member and the ball pivot; anda baseplate assembly, the baseplate assembly having a base that mounts underneath a skateboard or longboard deck configured to receive a kingpin to secure the ball pivot hanger assembly to the baseplate assembly;wherein the hanger is configured with an angle of mechanical advantage of at least twenty degrees, the angle being defined by two lines, the first line running between a center of the kingpin aperture coincident with a longitudinal center of the kingpin and the ball pivot's center of rotation, and the second line running between a contact point of the ball pivot with the pivot cup on one side of the first line and a bearing surface of the bushing seat on an opposite side of the first line. 2. The skateboard or longboard truck of claim 1, wherein the mechanical advantage angle exceeds twenty-five degrees. 3. The skateboard or longboard truck of claim 1, wherein the ball pivot has a diameter of at least 13 mm. 4. The skateboard or longboard truck of claim 1, wherein the ball pivot is cast, forged or machined as an integral part of the hanger. 5. A skateboard or longboard truck comprising: a ball pivot hanger including a structural member oriented along a lateral axis and configured to support two wheels and a ball pivot extending out from the structural member in a direction perpendicular to the structural member; anda baseplate assembly, the baseplate assembly having a base that mounts underneath a skateboard or longboard deck configured to receive a kingpin to secure the ball pivot hanger assembly to the baseplate assembly;wherein a kingpin ratio, defined by a distance between a lateral axle centerline perpendicular to the kingpin and a kingpin longitudinal centerline, divided by a distance between the ball pivot's constant center of rotation and the kingpin longitudinal center line, expressed as a percentage, is more than fifty-two percent. 6. The skateboard or longboard truck of claim 5, wherein the kingpin ratio is at least fifty-five percent. 7. The skateboard or longboard truck, wherein the structural member of the ball pivot hanger embraces an axle or pair of axles that support the wheels, wherein the axle or pair of axles include two bearing standoffs that separate a bearing surface of the axle from a face of the structural member that embraces the axle. 8. The skateboard or longboard truck, wherein the structural member of the ball pivot hanger embraces an axle or pair of axles that support the wheels and includes two bearing standoffs that separate a bearing surface of the structural member from a face of the structural member.

이 특허에 인용된 특허 (39)

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Murphy,Calvin L., Ballgame.
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Kurita, Yoichiro; Nogawa, Jun; Maeda, Masato; Inomata, Teruji, Bonding method and bonding apparatus.
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Kent,Tracy Scott; MacCollum,Michael W., Elastomeric suspension system skateboard truck.
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Cassel Donald D. (54 Rose Ave. ; #9 Venice CA 90291), High performance grinding king pin and associated apparatus.
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Morris,James, Magnetic motor axle for skateboards.
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Scott D. Andersen ; Ole S. Andersen, Shock absorbing skate truck assembly.
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Ole S. Andersen ; Scott D. Andersen, Shock absorbing skateboard truck assembly.
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Barrett, Mark, Skateboard axle assembly.
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De Las Casas, Armando, Skateboard truck.
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Gesmer Daniel (2504 Cerro Vista Dr. Rockford IL 61107-1006) Haug Max (Alte Landstr. 11 7470 Albstadt 1 DEX), Skateboard truck assembly.
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Yamada, Toshihiro; Hiranuma, Takayuki, Skateboard truck assembly.
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Johnson Robert D. (7882 Cedar Lake Ave. San Diego CA 92119), Skateboard truck with independent wheel suspension.
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Gallagher,Peter J., Slide plate for skateboard riser pads.
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Palmer, James Stewart; Smith, Gregory Harold, Speed control system.
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Tsai, Tai-Yuan, Steering device for a skateboard.
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Fehn ; Jr. Albert Lucien, Suspension for a skateboard.
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Gesmer, Daniel Jon, Truck and wheel bearing assembly.
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Whitmarsh Denis H. (Carpenders Park GB2), Truck for a skateboard.
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Stratton, Neil, Truck for skateboards.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Skateboard / longboard truck with improved mechanical advantage 원문보기

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Skateboard / longboard truck with improved mechanical advantage 원문보기

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이 특허에 인용된 특허 (39)

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