A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be posi
A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.
대표청구항▼
What is claimed is: 1. An apparatus for aerating soil, comprising: first and second substantially parallel shafts rotatably coupled to a carrier, each shaft having one or more soil aerating tines attached thereto; a gear system to rotate each of the first and second shafts while revolving the first
What is claimed is: 1. An apparatus for aerating soil, comprising: first and second substantially parallel shafts rotatably coupled to a carrier, each shaft having one or more soil aerating tines attached thereto; a gear system to rotate each of the first and second shafts while revolving the first and second shafts about a central axis of the carrier, the gear system having a planetary gear coupled to each shaft and a sun gear axially aligned with the central axis, wherein the sun gear is engaged with the planetary gears and the sun gear remains substantially rotationally fixed relative to the central axis. 2. The apparatus of claim 1, further comprising a non-centrally located support shaft offset from the central axis and coupled to the carrier. 3. The apparatus of claim 2, wherein the first and second shafts are offset from the central axis such that the tines are operative to move through the central axis without interference from another tine or shaft. 4. The apparatus of claim 1, wherein the gear system comprises: a first planetary gear coupled to the first shaft and axially aligned with a first axis of the first shaft; a second planetary gear coupled to the second shaft and axially aligned with a second axis of the second shaft; the sun gear being radially aligned with the first and second planetary gears; and an engaging member engaged with the sun gear, the first planetary gear, and the second planetary gear. 5. The apparatus of claim 4, wherein when the carrier rotates about the central axis: the first and second planetary gears are operative to revolve around the sun gear, the first planetary gear is operative to rotate about the first axis, and the second planetary gear is operative to rotate about the second axis. 6. The apparatus of claim 5, wherein when the carrier rotates about the central axis: the first and second shafts are operative to revolve around the central axis, the first shaft is operative to rotate about the first axis, and the second shaft is operative to rotate about the second axis. 7. The apparatus of claim 6, when the carrier rotates about the central axis, the soil aeration tines are operative to penetrate and remove a portion of soil from a ground surface. 8. The apparatus of claim 4, wherein the engaging member comprises a chain, cable, or belt. 9. The apparatus of claim 1, wherein the soil aerating tines comprise tubes, blades, spikes, or a combination thereof. 10. The apparatus of claim 1, wherein the sun gear is engaged with the planetary gears by a coupling member. 11. The apparatus of claim 10, wherein the coupling member includes a chain, cable, or belt. 12. A soil aerator, comprising: a carrier rotatably attached to a frame such that the carrier is rotatable about a central axis; first and second shafts rotatably coupled to the carrier such that the first shaft is rotatable about a first axis and the second shaft is rotatable about a second axis, wherein the first axis and second axis are substantially parallel to the central axis, each shaft having one or more soil aerating tines attached thereto; and a gear system comprising: a first planetary gear coupled to the first shaft and axially aligned with the first axis; a second planetary gear coupled to the second shaft axially aligned with the second axis; a sun gear axially aligned with the central axis and radially aligned with the first and second planetary gears, the sun gear being substantially fixed with respect to the frame; and a coupling member engaged with the sun gear, the first planetary gear, and the second planetary gear. 13. The soil aerator of claim 12, wherein when the carrier rotates about the central axis: the first and second planetary gears are operative to revolve around the sun gear, the first planetary gear is operative to rotate about the first axis, and the second planetary gear is operative to rotate about the second axis. 14. The soil aerator of claim 13, wherein when the carrier rotates about the central axis: the first and second shafts are operative to revolve around the central axis, the first shaft is operative to rotate about the first axis, and the second shaft is operative to rotate about the second axis. 15. The soil aerator of claim 14, when the carrier rotates about the central axis, the soil aeration tines are operative to penetrate and remove a portion of soil from a ground surface. 16. The soil aerator of claim 12, wherein the coupling member comprises a chain, cable, or belt. 17. The soil aerator of claim 12, further comprising a non-centrally located support shaft offset from the central axis and coupled to the carrier. 18. The soil aerator of claim 17, wherein the first and second shafts are offset from the central axis such that the tines are operative to move through the central axis without interference from another tine or shaft. 19. The soil aerator of claim 12, wherein the frame comprises at least one wheel and a connection means for releasably attaching the frame to a vehicle. 20. The soil aerator of claim 19, further comprising a drive means engaged with the carrier to cause the carrier to rotate about the central axis. 21. The soil aerator of claim 20, wherein the soil aerating tines comprise tubes, blades, spikes, or a combination thereof. 22. An apparatus for aerating soil, comprising: a carrier rotatably attached to a frame such that the carrier is rotatable about a central axis; first and second shafts rotatably coupled to the carrier, each shaft having one or more soil aerating tines attached thereto; and a support member offset from the central axis and coupled to the carrier, wherein the first and second shafts are offset from the central axis such that the tines are operative to move through the central axis without interference from another tine or shaft. 23. The apparatus of claim 22, further comprising a gear system for rotating each of the first and second shafts while revolving the first and second shafts about a central axis of the carrier, the gear system having a planetary gear coupled to each shaft and a sun gear axially aligned with the central axis. 24. The apparatus of claim 23, wherein the sun gear is engaged with the planetary gears. 25. The apparatus of claim 24, further comprising a coupling member to engage each sun gear with the corresponding planetary gears, wherein the coupling member includes a chain, cable, or belt.
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이 특허에 인용된 특허 (68)
Zehrung ; Jr. Claude D. (Denver CO) Oliver William H. (Highlands Ranch CO), Aerating apparatus.
Flanagan ; Sr. Robert P. (524 Sixth St. Dover NH 03820) Flanagan ; Jr. Robert P. (P.O. Box 601 Dover NH 03820), Turf aerating machine and tool attachment.
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