[특허]Robotic vehicle having traction and mobility-enhanced wheel structures

Cardinal Gibbons High School

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특허 상세정보

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Robotic vehicle having traction and mobility-enhanced wheel structures

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62D-055/20 B60B-015/22
출원번호	US-0588531 (2012-08-17)
등록번호	US-9211922 (2015-12-15)
발명자 / 주소	Keeling, Ariana Jacqueline Cook, Kirby Shane Kowalczyk, Timothy Paul Ruff, Aaron Joseph McDonald, Sean Michael Greene, Sean Michael Celestini, Marc Nelson, Brian Alexander
출원인 / 주소	Cardinal Gibbons High School
대리인 / 주소	Haynes and Boone, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록
▼

A robotic vehicle is provided with improved traction and mobility via a specially designed wheel apparatus including a relatively rigid wheel structure formed from two circular, coaxial sprocketed wheel plates separated by a central hub. The sprockets on the wheel plates are circumferentially aligned with one another, with axially facing sprocket pairs being received in areas defined between circumferentially adjacent pairs of tread links in a series of tread links, equal in number to the number of sprocket pairs, arranged in a circular array around the periphery of the wheel structure. The sprocket pairs are sized and configured in a manner such that substantial relative axial and circumferential movement between the wheel structure and the tread link array are blocked, with the axially facing sprockets in each sprocket pair being axially and resiliently deflected toward one another by surface portions of their associated tread link area.

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1. Treaded vehicle wheel apparatus comprising: a substantially rigid circular wheel structure rotatable about an axis extending centrally therethrough, said circular wheel structure having a periphery from which a number of circumferentially spaced sprocket structures radially outwardly project; anda series of a number of interconnected tread links exactly equal in number to the number of said sprocket structures, disposed in a circular array coaxial with said circular wheel structure and extending externally around said periphery of said wheel structure, and being conjointly rotatable with said wheel structure about said axis, wherein the number of interconnected tread links is equal to the number of circumferentially spaced sprocket structures, and the number of circumferentially spaced sprocket structures is equal to the number of interconnected tread links,each circumferentially adjacent pair of said tread links forming an area receiving one of said sprocket structures and having bounding surfaces blocking substantial relative axial and circumferential movement between said wheel structure and said tread link array. 2. The treaded vehicle wheel apparatus of claim 1 wherein: each of said sprocket structures is defined by a circumferentially aligned, axially spaced apart and facing pair of sprockets. 3. The treaded vehicle wheel apparatus of claim 2 wherein: the sprockets in each axially facing pair thereof are axially and resiliently deflected toward one another, by axially opposing surface portions of the tread link areas receiving the sprocket pairs, in a manner creating a frictional interfit between said sprocket structures and said interconnected tread links. 4. The treaded vehicle wheel apparatus of claim 1 wherein: said wheel structure comprises coaxial first and second circular wheel plates separated by a central hub, each said wheel plate having a circumferentially spaced series of outwardly projecting peripheral sprockets thereon, the sprockets on said first and second wheel plates being circumferentially aligned with one another, with axially facing pairs of said sprockets defining said sprocket structures received in said tread link areas. 5. The treaded vehicle wheel apparatus of claim 4 wherein: the sprockets in said axially facing pairs thereof are axially and resiliently deflected toward one another, by axially opposing surface portions of the tread link areas receiving the sprocket pairs, in a manner creating a frictional interfit between said sprocket structures and said interconnected tread links. 6. The treaded vehicle wheel apparatus of claim 4 wherein: said first and second circular wheel plates are of a plastic material. 7. The treaded vehicle wheel apparatus of claim 1 wherein: said tread links are pivotally interconnected to one another. 8. The treaded vehicle wheel apparatus of claim 1 wherein: each of said tread links has a relatively rigid body portion extending axially outwardly beyond opposite sides of said wheel structure, and an elastomeric ground engaging portion carried by said body portion and projecting outwardly therefrom. 9. The treaded vehicle wheel apparatus of claim 8 wherein: said ground engaging portion has an elongated rectangular configuration and longitudinally extends parallel to said axis. 10. The treaded vehicle wheel apparatus of claim 1 wherein: each of said tread links has a plastic body portion and a rubber tread portion secured thereto and projecting outwardly therefrom. 11. The treaded vehicle wheel apparatus of claim 1 wherein: each of said tread link areas is bounded by interconnected spaced apart parallel leg pairs of two of said tread links. 12. The treaded vehicle wheel apparatus of claim 1 wherein: said treaded vehicle wheel apparatus is a treaded robotic vehicle wheel. 13. The robotic vehicle of claim 1 wherein: said sprockets are configured relative to said tread link areas in a manner preventing substantial rotation between said wheel structure and said series of interconnected tread links. 14. A robotic vehicle comprising: a body; andtreaded wheel apparatus operative to support said body for rolling movement along a surface, said treaded wheel apparatus including: a wheel structure rotatable about an axis and having first and second peripherally sprocketed circular wheel plates axially separated by a central hub member, the sprockets of said first wheel plate being circumferentially aligned with the sprockets of said second wheel plate to define axially facing sprocket pairs circumferentially spaced around said wheel structure; anda series of interconnected tread links equal in number to said sprocket pairs and being arranged in a circular array extending around the periphery of said wheel structure, each circumferentially adjacent tread link pair forming therebetween an area receiving one of said sprocket pairs and resiliently deforming the sprockets in said one sprocket pair toward one another to create frictional interfits between said sprockets and said tread links. 15. The robotic vehicle of claim 14 wherein: said first and second circular wheel plates are of a plastic material. 16. The robotic vehicle of claim 14 wherein: said tread links are pivotally interconnected to one another. 17. The robotic vehicle of claim 14 wherein: each of said tread links has a relatively rigid body portion extending axially outwardly beyond opposite sides of said wheel structure, and an elastomeric ground engaging portion carried by said body portion and projecting outwardly therefrom. 18. The robotic vehicle of claim 17 wherein: said ground engaging portion has an elongated rectangular configuration and longitudinally extends parallel to said axis. 19. The robotic vehicle of claim 14 wherein: each of said tread links has a plastic body portion and a rubber tread portion secured thereto and projecting outwardly therefrom. 20. The robotic vehicle of claim 14 wherein: each of said tread link areas is bounded by interconnected spaced apart parallel leg pairs of two of said tread links.

이 특허에 인용된 특허 (30)

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Robotic vehicle having traction and mobility-enhanced wheel structures

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Robotic vehicle having traction and mobility-enhanced wheel structures

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