Plow mulcher |
|||||||
| 申请号 | US3566974D | 申请日 | 1968-11-20 | 公开(公告)号 | US3566974A | 公开(公告)日 | 1971-03-02 |
| 申请人 | KOPASKA ARNOLD F; | 发明人 | KOPASKA ARNOLD F; | ||||
| 摘要 | A plow having a pivotally mounted plow mulcher connected to the plow frame through hinged arms. A plow mulcher frame is carried on the outer ends of the hinged arm and may be moved between raised and lowered positions by operation of an overcenter spring arrangement, hydraulic cylinder and cable arrangement, or a hydraulic cylinder extending between the plow frame and the outer hinged arm portion. A cushioning spring may be provided for the hydraulic cylinder to yieldably permit raising of the mulcher frame without contracting the hydraulic cylinder. The mulcher and the plow may be operated from a common hydraulic power source through separate hydraulic cylinders connected together such that the mulcher is raised and lowered first due to its lower power requirements. Unlimited adjustability is provided in the mulcher structure to position the mulcher as desired relative to the plow. | ||||||
| 权利要求 | 1. In combination: a plow unit having an elongated straight frame member disposed at an angle other than a right angle with respect to the normal direction of travel of said plow unit doing the plowing operation; a plurality of plow elements secured to said elongated frame member and adapted to normally throw soil outwardly in a transverse direction with respect to said elongated frame member during the plowing operation; a pair of elongated mulcher support arms rigidly connected to said elongated frame member and extending substantially perpendicularly and transversely outwardly therefrom; said pair of mulcher support arms including hinged-together portions for the outer portion to be pivoted between lowered and raised positions; an elongated beam connected to the outer portions of said pair of support arms; said beam being substantially parallel to said elongated frame member; ground working teeth units connected to said elongated beam, and comprising a vertical support means, a substantially horizontal member secured to the lower end of said support means, teeth elements on said horizontal member, and the longitudinal axes of said teeth members being substantially perpendicular to the normal direction of travel of said plow unit during the plowing operation; said teeth units being positioned closely adjacent the outward edges of said plow elements to work the soil as it is being moved outwardly by said plow elements; and control means operatively connected between the frame member and said outer portion for pivoting the hinged together portions of said mulcher support arms. 2. The structure of claim 1 wherein said beam is connected to said outer portions of said support arms by posts extending substantially perpendicularly to said outer portions and said elongated mulcher frame. 3. The structure of claim 2 wherein said posts are selectively adjustable transversely and longitudinally of said outer portions of said support arms. 4. The structure of claim 3 wherein said ground working teeth units are selectively adjustable longitudinally of the elongated beam. 5. The structure of claim 4 wherein said elongated beam is adjustable longitudinally of said posts for providing the desired angular relationship of said elongated frame member relative to the ground. 6. The structure of claim 1 wherein a spring in tension extends between said frame member and one of said posts, said spring being positioned for overcenter operation to hold said outer arm portion in a lowered position and at other times hold it in a raised position. 7. The structure of claim 1 wherein cooperating means are provided on said arm portions for locking said outer portion in said raised and lowered positions. 8. The structure of claim 1 wherein said control means is a hydraulic cylinder means connected between said frame member and one of said support arms. 9. The structure of claim 8 wherein said hydraulic cylinder means includes a hydraulic cylinder connected to a cable having its opposite ends anchored on the outer portions of said arms for said outer portions of the arms to be raised and lowered as said cylinder is contracted and expanded respectively. 10. The structure of claim 9 wherein said hydraulic cylinder is arranged in parallel relationship to the longitudinal frame member, cable sheaves being positioned on each of said inner arm portions and a third cable sheave being positioned adjacent said sheave on one of said inner arm portions and remotely of said hydraulic cylinder, said cable extending from one end anchored to said outer arm portion connected to said one inner arm portion over said sheave on said one inner arm portion, over a sheave on the outer end of the piston rod of said hydraulic cylinder, around the third sheave and finally over said sheave on the other inner arm portion to the point it is anchored on said other outer arm portion. 11. The structure of claim 10 wherein each of said sheaves on said inner arm portions are mounted on riser posts above the inner arm portions. 12. The structure of claim 8 wherein said hydraulic means includes a hydraulic cylinder anchored at one end to said elongated plow frame and at the other end to the outer arm portion of one of said arms whereby expansion of said cylinder will lower said outer arm portion and contraction of said cylinder will raise said outer arm portion. 13. The structure of claim 12 wherein said cylinder includes spring means in its connections at one of its ends to permit movement of said cylinder independently of contraction and expansion of said cylinder whereby said outer arm portion may be yieldably held in a lowered position, and means on said frame member to retain and connect said spring to said cylinder. 14. The structure of claim 13 wherein said spring means is connected between the inner end of said cylinder and said elongated plow frame. 15. The structure of claim 14 wherein said spring means includes a slidable bracket connected to the inner end of said cylinder and engaging one end of a spring element and a stop element on said bracket provided for engagement with the opposite end of said spring element. 16. The structure of claim 15 wherein said spring means includes a bolt member slidably extending through said stop element and along the length of said spring element to engagement with said slidable bracket. 17. The structure of claim 13 wherein a stop means is provided between said inner and outer arm portions to limit downward pivotal movement of said outer arm portion against movement to an overcenter position relative to the position and action of said cylinder. 18. The structure of claim 13 wherein said hydraulic means includes a second cylinder connected to said frame member for raising and lowering said plow unit and said cylinders are connected to a common power source such that said beam connected to said outer arm portion will be operated first in raising and lowering operations for reason of its operative load requirements for operation being lower than said plow. |
||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈