[특허]Track-module apparatus and open lightweight drive wheel therefor

ATI, Inc.

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Track-module apparatus and open lightweight drive wheel therefor

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62D-055/12
미국특허분류(USC)	305/135; 305/115; 305/195
출원번호	US-0193124 (2011-07-28)
등록번호	US-8746815 (2014-06-10)
발명자 / 주소	Reshad, Jamsheed Tiede, Duane
출원인 / 주소	ATI, Inc.
대리인 / 주소	Jansson Munger McKinley & Shape Ltd.
인용정보	피인용 횟수 : 8 인용 특허 : 8

초록
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A vehicle track-module including an upper drive wheel, a plurality of idler and bogey wheels, and an endless rubber track with spaced lugs which extends around the wheels and is driven by the drive wheel, which has: a middle main plate with a outer edge of first diameter and inward and outward sides forming the exposed inward and outward surfaces of the drive wheel; drive members axially across and projecting radially beyond the main-plate edge to a second diameter, each drive member having axially inward and outward end portions, a middle portion affixed at its middle position to the main-plate edge, and an outer track-engaging surface; and a rigidity ring affixed to the inward end portions of the drive members and having an inner diameter no less than half the first diameter and an outer diameter no greater than the second diameter. In some embodiments, the axial dimension of the track-engaging surfaces of the drive members is at least 50% greater than the axial dimension of the track lugs. In some, the track module has preferably annular wheel-weights around the central portion of the drive wheel.

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1. In vehicle track-module apparatus including an upper drive wheel connectable with respect to a vehicle axle for rotation therewith, a plurality of idler and bogey wheels, and an endless flexible rubber track with a main inner surface and spaced lugs projecting therefrom, the track extending around the wheels and driven by its engagement with the drive wheel, the improvement wherein the drive wheel comprises: a circular middle main plate having a central portion adapted for connection with respect to the vehicle axle, the plate terminating circumferentially in an edge of first diameter and having inward and outward sides forming inward and outward surfaces of the drive wheel;circumferentially-spaced drive members extending axially across and projecting radially beyond the main-plate edge to a second diameter, each drive member having an axially inward end portion, an axially outward end portion, a middle portion therebetween having a middle position, and an outer track-engaging surface, each drive member being affixed with respect to the main-plate edge with the main plate and the middle position substantially aligned; anda substantially flat rigidity ring concentric with the middle main plate and affixed to the drive members at the inward end portions thereof, the ring having an inner diameter no less than about half the first diameter and an outer diameter no greater than about the second diameter. 2. The vehicle track-module apparatus of claim 1 wherein the inner diameter of the rigidity ring is no less than the first diameter. 3. The vehicle track-module apparatus of claim 1 wherein the rigidity ring affixed at the inward end portions of the drive members is offset from the inward ends. 4. The vehicle track-module apparatus of claim 1 further including at least one annular wheel-weight attached to the outward side of the middle main plate around the central portion thereof. 5. The vehicle track-module apparatus of claim 4 wherein the at least one wheel-weight includes a first wheel-weight and a second wheel-weight that is secured adjacent to the first wheel-weight concentrically therewith. 6. The vehicle track-module apparatus of claim 1 wherein the difference between the second and first diameters is greater than the length of lug projection from the main inner surface of the track. 7. The vehicle track-module apparatus of claim 1 further including lug support members each of which is affixed with respect to the middle main plate edge between an adjacent pair of drive members and has a lug support surface positioned for engagement with a distal end of one of the track lugs. 8. The vehicle track-module apparatus of claim 1 further including lug support members each of which is affixed with respect to the middle main plate edge between an adjacent pair of drive members and has a lug support surface positioned for engagement with a distal end of one of the track lugs. 9. The vehicle track-module apparatus of claim 1 wherein the outer track-engaging surface of each of the drive members has an axial dimension at least about 50% greater than the axial dimension of the track lugs. 10. The vehicle track-module apparatus of claim 9 wherein the axial dimension of the track-engaging surface is at least about 65% greater than the axial dimension of the track lugs. 11. The vehicle track-module apparatus of claim 10 wherein the axial dimension of the track-engaging surface is at least about twice the axial dimension of the track lugs. 12. The vehicle track-module apparatus of claim 1 wherein each of the drive members is affixed with respect to the main plate edge by a respective drive-member mount which extends axially to and is affixed to the rigidity ring. 13. The vehicle track-module apparatus of claim 12 wherein each drive-member mount is attached to its respective drive member substantially along the entire length of the drive member. 14. The vehicle track-module apparatus of claim 12 wherein each of the drive-member mounts is a flat plate the plane of which is substantially radially oriented with respect to the vehicle axle. 15. The vehicle track-module apparatus of claim 12 wherein the inner diameter of the rigidity ring is no less than the first diameter. 16. The vehicle track-module apparatus of claim 15 wherein each drive-member mount is attached to its respective drive member substantially along the entire length of the drive member. 17. The vehicle track-module apparatus of claim 15 wherein each of the drive-member mounts is a flat plate the plane of which is radially oriented with respect to the vehicle axle.

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이 특허를 인용한 특허 피인용횟수: 8

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Track-module apparatus and open lightweight drive wheel therefor

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이 특허에 인용된 특허 (8)

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Track-module apparatus and open lightweight drive wheel therefor

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이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 8

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IPC 상세정보(version : 201201)

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