IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0621174
(2000-07-21)
|
발명자
/ 주소 |
|
대리인 / 주소 |
Patterson, Thuente, Skaar & Christensen, P.A.
|
인용정보 |
피인용 횟수 :
15 인용 특허 :
21 |
초록
▼
A unique bucket attachment and sub-attachment adaptable for use with skid steer loaders and other earth moving equipment. The bucket attachment has a much smaller ratio of width to length than conventional loader buckets. It also provides for a much longer reach than conventional loader implements.
A unique bucket attachment and sub-attachment adaptable for use with skid steer loaders and other earth moving equipment. The bucket attachment has a much smaller ratio of width to length than conventional loader buckets. It also provides for a much longer reach than conventional loader implements. The bucket attachment is well adapted for use with a skid steer loader or other tractor for trenching, excavation and moving of granular materials such as earth, sand, gravel or crushed rock. The bucket attachment may include a short fork assembly at the distal end. In addition to increasing the reach of the attachment, the fork assembly assists in the manipulation of heavy unit items such as balled and burlapped trees and shrubs, boulders, and blocks of stone or concrete. Sub-attachments, such as a smaller bucket that further extends the reach of the bucket attachment, and a variety of chutes can be removably attached to the distal end of the bucket attachment.
대표청구항
▼
A unique bucket attachment and sub-attachment adaptable for use with skid steer loaders and other earth moving equipment. The bucket attachment has a much smaller ratio of width to length than conventional loader buckets. It also provides for a much longer reach than conventional loader implements.
A unique bucket attachment and sub-attachment adaptable for use with skid steer loaders and other earth moving equipment. The bucket attachment has a much smaller ratio of width to length than conventional loader buckets. It also provides for a much longer reach than conventional loader implements. The bucket attachment is well adapted for use with a skid steer loader or other tractor for trenching, excavation and moving of granular materials such as earth, sand, gravel or crushed rock. The bucket attachment may include a short fork assembly at the distal end. In addition to increasing the reach of the attachment, the fork assembly assists in the manipulation of heavy unit items such as balled and burlapped trees and shrubs, boulders, and blocks of stone or concrete. Sub-attachments, such as a smaller bucket that further extends the reach of the bucket attachment, and a variety of chutes can be removably attached to the distal end of the bucket attachment. tting teeth, a trailing edge, and a trough portion located between said leading and trailing edges and extending along said helical arm toward said ring, said trough portion being free from structures obstructing movement of material along said helical arm toward said ring; and (c) each of said helical arms having a degree of curvature near said ring of at least 15%. 13. The dredge cutterhead of claim 12 wherein said degree of curvature generally increases over at least a respective portion of each of said helical arms that is located nearer to said ring than to said hub. 14. The dredge cutterhead of claim 12 wherein each of said helical arms has a minimum and a maximum degree of curvature, and wherein said maximum degree of curvature is located nearer to said ring than is said minimum degree of curvature. 15. The dredge cutterhead of claim 14 wherein said minimum degree of curvature is near said hub and said maximum degree of curvature is near said ring. 16. The dredge cutterhead of claim 12 wherein said degree of curvature at a location near said ring is at least 1.5 times as great as said degree of curvature at another location near said hub. 17. The dredge cutterhead of claim 12 wherein each of said helical arms is wider near said ring than near said hub. 18. The dredge cutterhead of claim 12 wherein said leading edge has a helix angle of at least 140° near said ring. 19. The dredge cutterhead of claim 12 wherein said cutterhead has an aspect ratio of at least 1.7. 20. The dredge cutterhead of claim 12 wherein said trough portion is thinner than a leading portion of said arm. 21. The dredge cutterhead of claim 12 wherein said ring further defines a plurality of notches, each of said notches communicating with a respective trough portion. 22. The dredge cutterhead of claim 12 wherein said trailing edge curves inwardly into the interior of said cutterhead. 23. The dredge cutterhead of claim 12 wherein said ring defines a channel extending annularly along an interior of said ring and facing openly inward from said ring toward a rotational axis of said cutterhead. 24. A dredge cutterhead comprising: (a) a hub, a ring and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms being capable of supporting a plurality of cutting teeth; and (c) said ring defining a channel extending annularly along an interior of said ring and facing openly inward from said ring toward a rotational axis of said cutterhead for retaining loosened material. 25. The dredge cutterhead of claim 24 wherein said channel has a cross-section in the shape of a half-pipe. 26. The dredge cutterhead of claim 24 wherein at least one of said helical arms has a trough portion extending therealong toward said ring. 27. The dredge cutterhead of claim 26 wherein said ring defines a notch in communication with said trough portion and said channel. 28. A dredge cutterhead comprising: (a) a hub, a ring defining an annular channel having a cross-section in the shape of a half-pipe, and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; and (c) each of said helical arms having a degree of curvature near said ring of at least 10%. 29. The dredge cutterhead of claim 28 wherein said ring defines a notch in communication with said trough portion and said channel. 30. A dredge cutterhead comprising: (a) a hub, a ring and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms being capable of supporting a plurality of cutting teeth; and (c) said ring defining an interior annular channel having a cross-section in the shape of a halfpipe, for retaining loosened material. 31. The dredge cutterhead of claim 30 wherein at least one of said helical arms has a trough portion. 32. The dredge cutterhead of claim 31 wherein said ring defines a notch in communication with said trough portion and said channel. 33. A dredge cutterhead comprising: (a) a hub, a ring, and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; and (c) each of said helical arms having a degree of curvature that generally increases along at least a portion of each of said helical arms that is located nearer to said ring than to said hub and being shaped such that a net force exerted on dredged material in said trough portion pushes said material toward said ring generally along the center of said trough portion. 34. A dredge cutterhead comprising: (a) a hub, a ring, and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; and (c) each of said helical arms having a maximum degree of curvature and a minimum degree of curvature, and said maximum degree of curvature being located nearer to said ring than said minimum degree of curvature is located, and each of said helical arms being shaped such that a net force exerted on dredged material in said trough portion pushes said material toward said ring generally along the center of said trough portion. 35. A dredge cutterhead comprising: (a) a hub, a ring, and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; (c) each of said helical arms being shaped such that a net force exerted on dredged material in said trough portion pushes said material toward said ring generally along the center of said trough portion; and (d) each of said helical arms having a degree of curvature near said ring and a degree of curvature near said hub, said degree of curvature near said ring being at least 1.5 times as great as said degree of curvature near said hub. 36. A dredge cutterhead comprising: (a) a hub, a ring, and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading portion, a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion between said leading edge and said trailing edge, and said trough portion being thinner than said leading portion; and (c) each of said helical arms being shaped such that a net force exerted on dredged material in said trough portion pushes said material toward said ring generally along the center of said trough portion. 37. A dredge cutterhead comprising: (a) a hub, a ring, and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; (c) each of said helical arms being shaped such that a net force exerted on dredged material in said trough portion pushes said material toward said ring generally along the center of said trough portion; and (d) said ring defining a plurality of notches, each of said notches communicating with a respective trough portion. 38. A dredge cutterhead comprising: (a) a hub, a ring and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; and (c) each of said helical arms having a degree of curvature that generally increases over at least a portion of said arm that is located nearer to said ring than to said hub, and said degree of curvature near said ring being at least 10%. 39. A dredge cutterhead comprising: (a) a hub, a ring and a plurality of helical arms interconnecting said hub and said ring; (b) each of said h elical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; (c) each of said helical arms having a minimum degree of curvature and a maximum degree of curvature, said maximum degree of curvature being located nearer to said ring than is said minimum degree of curvature; and (d) each of said helical arms having a degree of curvature near said ring of at least 10%. 40. The dredge cutterhead of claim 39 wherein said minimum degree of curvature is near said hub and said maximum degree of curvature is near said ring. 41. A dredge cutterhead comprising: (a) a hub, a ring and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; and (c) each of said helical arms having a degree of curvature, said degree of curvature at a location near said ring being at least 1.5 times as great as said degree of curvature at another location near said hub, and said degree of curvature near said ring being at least 10%. 42. A dredge cutterhead comprising: (a) a hub, a ring and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading portion, a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion between said leading edge and said trailing edge, and said trough portion being thinner than said leading portion; and (c) each of said helical arms having a degree of curvature near said ring of at least 10%. 43. A dredge cutterhead comprising: (a) a hub, a ring and a plurality of helical arms interconnecting said hub and said ring; (b) each of said helical arms having a leading edge for attachment of cutting teeth, a trailing edge, and a trough portion therebetween; (c) each of said helical arms having a degree of curvature near said ring of at least 10%; and (d) said ring defining a plurality of notches, each of said notches communicating with a respective trough portion.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.