IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0861880
(2007-09-26)
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등록번호 |
US-7784557
(2010-09-20)
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발명자
/ 주소 |
- Maas, David R.
- Bjorge, Scott W.
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출원인 / 주소 |
- PlanetAir Turf Products, LLC
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
98 |
초록
▼
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. A soil aerator, comprising: a frame connectable to a vehicle which transmits a pulling force from the vehicle to the frame; and a soil aeration apparatus mounted to the frame such that the frame transports the soil aeration apparatus over a ground surface when the frame is co
What is claimed is: 1. A soil aerator, comprising: a frame connectable to a vehicle which transmits a pulling force from the vehicle to the frame; and a soil aeration apparatus mounted to the frame such that the frame transports the soil aeration apparatus over a ground surface when the frame is connected to the vehicle, the soil aeration apparatus having a set of arcuate aeration blades attached to a tine-holder shaft; wherein the arcuate aeration blades penetrate the ground surface at substantially the same time to form aeration pockets when the frame transports the soil aeration apparatus over the ground surface, wherein each arcuate aeration blade initially penetrates the ground so that a convex cutting edge of the arcuate aeration blade is positioned generally below a complementary concave cutting edge of the arcuate aeration blade, and wherein the arcuate aeration blades penetrate the ground at a predetermined orientation so as to produce a downward force urging the frame toward the ground surface. 2. The soil aerator of claim 1, wherein the arcuate aeration blades penetrate the ground at a predetermined orientation so as to provide a plowshare effect that urges the frame toward the ground surface as the vehicle which transmits a pulling force from the vehicle to the frame. 3. The soil aerator of claim 1, wherein the frame is connectable to the vehicle by a one-point hitch member. 4. The soil aerator of claim 1, wherein the soil aeration apparatus is operable to aerate soil without the provision of positive ballast or an externally applied downward force. 5. The soil aerator of claim 1, wherein the soil aeration apparatus further includes a second set of arcuate aeration blades attached to a second tine-holder shaft, the second set of arcuate aeration blades being staggered from the first set of arcuate aeration blades. 6. The soil aerator of claim 5, wherein the soil aeration apparatus further includes a carrier, the first and second tine-holder shafts being rotatably coupled to the carrier so that the first and second shafts are substantially parallel and are spaced apart by a separation distance. 7. The soil aerator of claim 6, wherein each tine in the first set of arcuate aeration blades extends radially from the first shaft to a distance greater than one-half the separation distance and each tine in the second set of arcuate aeration blades extends radially from the second shaft to a distance greater than one-half the separation distance. 8. The soil aerator of claim 6, wherein the soil aeration apparatus further includes a support shaft rigidly coupled to the carrier along a central axis of the carrier. 9. The soil aerator of claim 8, wherein the first shaft is offset from the support shaft such that the first set of arcuate aeration blades is operable to revolve about the first shaft without interference from the support shaft. 10. The soil aerator of claim 8, wherein the second shaft is offset from the support shaft such that the second set of arcuate aeration blades is operable to revolve about the second shaft without interference from the support shaft. 11. The soil aerator of claim 6, wherein the soil aeration apparatus further includes a planetary gear system coupled to the first and second tine-holder shafts so as to drive the first set of arcuate aeration blades to rotate fully about the first tine-holder shaft and to drive the second set of arcuate aeration blades to rotate fully about the second tine-holder shaft. 12. The soil aerator of claim 2, wherein the soil aeration apparatus further includes a second set of arcuate aeration blades attached to a second tine-holder shaft, the second set of arcuate aeration blades being staggered from the first set of arcuate aeration blades. 13. The soil aerator of claim 12, wherein the soil aeration apparatus further includes a carrier, the first and second tine-holder shafts being rotatably coupled to the carrier so that the first and second shafts are substantially parallel and are spaced apart by a separation distance. 14. The system of claim 2, wherein the frame and the soil aeration apparatus is towed by the vehicle at a substantially continuous rate of greater than about five miles-per-hour during operation when the plurality of arcuate tines form the aeration pockets in the ground surface. 15. A system for forming aeration pockets in a ground surface, comprising: a soil aeration apparatus mounted to a frame such that the frame is operable to transport the soil aeration apparatus over the ground surface, the soil aeration apparatus having a plurality of arcuate tines attached to a tine-holder shaft; and a planetary gear system coupled to the tine-holder shaft so as to drive the arcuate tines in a rotational motion about the tine-holder shaft as the arcuate tines form aeration pockets in the ground surface, wherein the arcuate tines penetrate the ground at a predetermined orientation so as to produce a downward force urging the frame toward the ground surface, and each arcuate tine initially penetrates the ground so that a convex cutting edge of the arcuate tine is positioned generally below a complementary concave cutting edge of the arcuate tine, wherein the soil aeration apparatus is movable over the ground surface at a substantially continuous rate of greater than about five miles-per-hour while the plurality of arcuate tines form the aeration pockets in the ground surface. 16. The system of claim 15, wherein the frame is connectable to a vehicle by a one-point hitch member. 17. The system of claim 16, wherein the frame and the soil aeration apparatus is towed by the vehicle at a substantially continuous rate of greater than about five miles-per-hour during operation when the plurality of arcuate tines form the aeration pockets in the ground surface. 18. The system of claim 15, wherein the soil aeration apparatus is operable to form a plurality of substantially continuous slits in the ground surface. 19. The system of claim 15, wherein each arcuate tine comprises a blade portion having the convex cutting edge and the complementary concave cutting edge, wherein each arcuate tine penetrates the ground surface at the predetermined orientation so that the concave cutting edge is generally forward toward a transport direction of the frame when the soil aeration apparatus moves over the ground surface. 20. The system of claim 19, wherein each arcuate tine forms an aeration pocket by cutting a groove in the ground surface. 21. The system of claim 15, wherein each arcuate tine comprises an aeration tube coupled to an arcuate blade portion. 22. The system of claim 15, wherein the arcuate tines are operative to penetrate and remove a portion of soil from a ground surface. 23. The system of claim 15, wherein the soil aeration apparatus is movable over the ground surface at a substantially continuous rate of greater than about ten miles-per-hour while the plurality of arcuate tines form the aeration pockets in the ground surface. 24. The system of claim 15, wherein the aeration tines are urged in a compound motion to form slits in the ground surface and pockets under the ground surface which are larger than the slits. 25. The soil aerator of claim 15, wherein each arcuate tine comprises a blade portion having the convex cutting edge and the complementary concave cutting edge, wherein each arcuate tine penetrates the ground at the predetermined orientation so that the concave cutting edge faces generally toward a direction of the pulling force transmitted from the vehicle when the frame is connected to the vehicle. 26. The soil aerator of claim 15, wherein the soil aeration apparatus further includes a second set of arcuate tines attached to a second tine-holder shaft, the second set of arcuate tines being staggered from said plurality of arcuate tines attached to the first tine-holder shaft. 27. A soil aerator, comprising: a frame connectable to a vehicle which transmits a pulling force from the vehicle to the frame; and a soil aeration apparatus mounted to the frame such that the frame transports the soil aeration apparatus over a ground surface when the frame is connected to the vehicle, the soil aeration apparatus having a set of arcuate aeration blades attached to a tine-holder shaft; wherein the arcuate aeration blades penetrate the ground surface at substantially the same time to form aeration pockets when the frame transports the soil aeration apparatus over the ground surface, and wherein the arcuate aeration blades penetrate the ground at a predetermined orientation so as to produce a downward force urging the frame toward the ground surface, wherein each arcuate aeration blade comprises a blade portion having a convex cutting edge and a complementary concave cutting edge, wherein each arcuate aeration blade penetrates the ground at the predetermined orientation so that the concave cutting edge faces generally toward a direction of the pulling force transmitted from the vehicle when the frame is connected to the vehicle. 28. The soil aerator of claim 27, wherein the arcuate aeration blades penetrate the ground at a predetermined orientation so as to provide a plowshare effect that urges the frame toward the ground surface as the vehicle which transmits a pulling force from the vehicle to the frame. 29. The soil aerator of claim 27, wherein the frame and the soil aeration apparatus is towed by the vehicle at a substantially continuous rate of greater than about five miles-per-hour during operation when the plurality of arcuate tines form the aeration pockets in the ground surface. 30. The soil aerator of claim 27, wherein the frame is connectable to the vehicle by a one-point hitch member. 31. The soil aerator of claim 27, wherein the soil aeration apparatus is operable to aerate soil without the provision of positive ballast or an externally applied downward force. 32. The soil aerator of claim 27, wherein the soil aeration apparatus further includes a second set of arcuate aeration blades attached to a second tine-holder shaft, the second set of arcuate aeration blades being staggered from the first set of arcuate aeration blades. 33. The soil aerator of claim 32, wherein the soil aeration apparatus further includes a carrier, the first and second tine-holder shafts being rotatably coupled to the carrier so that the first and second shafts are substantially parallel and are spaced apart by a separation distance, wherein the first set of the first set of arcuate aeration blades fully rotates about the first tine-holder shaft in a first set of rotation planes, the second set of arcuate aeration blades fully rotates about the second tine-holder shaft in a second set of rotation planes, and none of the second set of rotating planes overlap any of the first set of rotating planes. 34. A soil aerator, comprising: a frame connectable to a vehicle which transmits a pulling force from the vehicle to the frame; a soil aeration apparatus mounted to the frame such that the frame transports the soil aeration apparatus over a ground surface when the frame is connected to the vehicle, the soil aeration apparatus having a first set of arcuate aeration blades attached to a tine-holder shaft; wherein the first set of arcuate aeration blades penetrate the ground surface at substantially the same time to form aeration pockets when the frame transports the soil aeration apparatus over the ground surface, wherein the first set of arcuate aeration blades penetrate the ground at a predetermined orientation so as to produce a downward force urging the frame toward the ground surface, wherein the soil aeration apparatus further includes a second set of arcuate aeration blades attached to a second tine-holder shaft, the second set of arcuate aeration blades being staggered from the first set of arcuate aeration blades, wherein the soil aeration apparatus further includes a carrier, the first and second tine-holder shafts being rotatably coupled to the carrier so that the first and second shafts are substantially parallel and are spaced apart by a separation distance, the first set of arcuate aeration blades fully rotates about the first tine-holder shaft in a first set of rotation planes, the second set of arcuate aeration blades fully rotates about the second tine-holder shaft in a second set of rotation planes, and none of the second set of rotating planes overlap any of the first set of rotating planes; wherein each arcuate aeration blade comprises a blade portion having a convex cutting edge and a complementary concave cutting edge, wherein each arcuate aeration blade penetrates the ground at the predetermined orientation so that the concave cutting edge faces generally toward a direction of the pulling force transmitted from the vehicle when the frame is connected to the vehicle. 35. The soil aerator of claim 34, wherein each arcuate aeration blade penetrates the ground at a predetermined orientation so as to provide a plowshare effect that urges the frame toward the ground surface as the vehicle which transmits a pulling force from the vehicle to the frame. 36. The soil aerator of claim 34, wherein the frame is connectable to the vehicle by a one-point hitch member. 37. The soil aerator of claim 34, wherein the soil aeration apparatus is operable to aerate soil without the provision of positive ballast or an externally applied downward force. 38. The soil aerator of claim 34, wherein each tine in the first set of arcuate aeration blades extends radially from the first shaft to a distance greater than one-half the separation distance and each tine in the second set of arcuate aeration blades extends radially from the second shaft to a distance greater than one-half the separation distance. 39. The soil aerator of claim 34, wherein the soil aeration apparatus further includes a support shaft rigidly coupled to the carrier along a central axis of the carrier. 40. The soil aerator of claim 39, wherein the first and second shafts are offset from the support shaft such that the first and second sets of arcuate aeration blades are operable to revolve about the first and second shaft without interference from the support shaft. 41. The soil aerator of claim 34, wherein the soil aeration apparatus further includes a planetary gear system coupled to the first and second tine-holder shafts so as to drive the first set of arcuate aeration blades to rotate fully about the first tine-holder shaft and to drive the second set of arcuate aeration blades to rotate fully about the second tine-holder shaft. 42. The system of claim 34, wherein the frame and the soil aeration apparatus is towed by the vehicle at a substantially continuous rate of greater than about five miles-per-hour during operation when the plurality of arcuate tines form the aeration pockets in the ground surface. 43. The system of claim 34, wherein the soil aeration apparatus is operable to form a plurality of substantially continuous slits in the ground surface. 44. The system of claim 34, wherein each arcuate tine comprises an aeration tube coupled to an arcuate blade portion.
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