| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Soil cultivating implements | US760862 | 1977-01-21 | US4098345A | 1978-07-04 | Ary van der Lely |
| A cultivator implement has an elongated central frame portion that supports a row of rotatable soil working members and a gear box with an imput connectable to a p.t.o. The gear box houses a driving shaft that extends horizontally transverse to the direction of travel and parallel to the frame portion. The driving shaft has a first pinion at one end that is engaged by the imput and a second smaller pinion is journalled in the side wall opposite the first pinion. The second pinion has an outer socket and a bore that receives the driving shaft. The outer end of the driving shaft has a socket that interconnects with the pinion's outer socket through lugs bolted together by a breakable bolt. The second pinion directly engages a third pinion that is on a shaft of one of the soil working members to drive same. If one of the soil working members jams, the bolt breaks and the driving shaft rotates relative to the second pinion. In one arrangement, the driving shaft extends through the gear box sides to respective transmission shafts geared to second and third groups of soil working members at each lateral side of the central frame portion. Respective gear boxes on the latter groups also can have overload release mechanisms. | ||||||
| 62 | Farm implement hinge restrictor | US688136 | 1976-05-20 | US4058170A | 1977-11-15 | Thomas W. Ankenman; Lee J. Brinker |
| A farm implement of the sectional tow type having at least two rigid frames positioned end-to-end and pivotally interconnected, includes a restrictor apparatus for resisting excessive oscillation between the frames and comprises a fixed and a reciprocating bracket having cooperating faces which are urged abuttingly together by a resilient member. The fixed bracket is attached to and disposed upstanding from one of the frames adjacent to the end thereof, and the reciprocating bracket is connected to the other frame by a linkage mechanism having one end pivotally attached to the reciprocating bracket in a spaced relation to the face thereof and having the other end pivotally attached to the other frame in a spaced relation to the pivotal connection. The resilient member is further compressed from a precompressed condition upon pivotal frame motion by the articulate movement of the reciprocating bracket relative to the fixed bracket. The restrictor thereby permits swinging motion between the frames during an operational implement position for conforming the same to the contour of the underlying terrain, and prevents undesirable oscillation between the frames during a transportational implement position. | ||||||
| 63 | V-type torsion bar tillage tines | US3737156D | 1971-10-08 | US3737156A | 1973-06-05 | WARD W |
| The invention provides a spring assembly and an energy absorbing linkage wherein end constraints on an elongated resilient member are effective to place the elongated member in torsion, such torsion permitting large deflections of the spring or linkage while maintaining a relatively low stress level in the resilient member. The spring assembly can be conveniently made in the form of an energy linkage unit, such a unit being suitable for building planar or lattice spring structure, or for use in an installation as a means of alternatively storing and releasing energy.
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| 64 | Cultivating implements | US3690385D | 1970-09-08 | US3690385A | 1972-09-12 | WEISS STANLEY MARIAN |
| A cultivating disc having a central aperture and connected at a plurality of locations disposed around the central aperture to a mount member in such manner that at said locations localized radial movements of the disc are permitted. The aperture reduces stiffness of the central part of the disc and the permitted localized radial movements enable this central part to behave elastically whereby fractures are minimized.
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| 65 | Tractors of the kind comprising a frame and a change speed gear | US20503362 | 1962-06-25 | US3236322A | 1966-02-22 | OTTO JONKERS CORNELINS; HILBERTUS FOCKENS FOPPE |
| 990,482. Change-speed control. C. VAN DER LELY N.V. June 20, 1962 [July 18, 1961], No. 23841/62. Headings F2C and F2D. A tractor for drawing or pushing agricultural implements is so arranged that excessive draw-bar force causes an automatic adjustment of the transmission gear to reduce speed. The arrangement shown employs an hydrostatic transmission with swash - plate pump and motor units 12, 13, control being exercized on the pump swash - plate 19, but a mechanical transmission may be used. The pivot shaft 20 of plate 19 is connected to the output member 31 of an hydraulic servomotor unit 32, the input member 33 of which is operated by a manual control lever (not shown), carried by a shaft 10 and operating through a linkage 48, 45, 37. The upper end of member 37 is attached to a cross-arm 53, 54 whose ends are connected to spring- loaded longitudinal members 55, 56 which are attached to the power-lift linkage or other implement-sensing mechanism. Upon the draw-bar force exceeding a predetermined value one or other of the rods 55, 56 moves to displace cross-arm 53, 54 and member 37, thereby operating the servomotor input member 33 to tilt the pump swash-plate 19 to reduce pump output and thus the speed of the tractor. | ||||||
| 66 | Wheeled vehicles carrying tool bars for cultivation | US30111863 | 1963-08-09 | US3205950A | 1965-09-14 | FRANK HOWSON DAVID; HENRY MARSDEN ROBERT; JOEL HAMBLIN HENRY |
| 67 | Combination hitch, depth control and spring release for rod weeders | US35374864 | 1964-03-23 | US3194321A | 1965-07-13 | ARTHUR SANDE FLOYD |
| 68 | Load transfer device for cultivators | US5528360 | 1960-09-12 | US3054462A | 1962-09-18 | SIGFRID ANDERSON ANDERS |
| 69 | Controls for tractors | US44002954 | 1954-06-29 | US2790365A | 1957-04-30 | BUNTING ERNEST V |
| 70 | Overload release arrangement for long implements | US42413654 | 1954-04-19 | US2780159A | 1957-02-05 | ALEXANDER SENKOWSKI; PAYNE LEONARD R; GEORGE FERGUSON HENRY |
| 71 | Trip rope holder | US262048 | 1948-01-16 | US2493247A | 1950-01-03 | HAROLD HOUSER |
| 72 | Rope releasing device | US68355146 | 1946-07-13 | US2478124A | 1949-08-02 | MUSSMAN WILLARD H |
| 73 | Stump-jump mechanism for agricultural implements | US50347943 | 1943-09-23 | US2379779A | 1945-07-03 | CECIL ASH ROY |
| 74 | Safety tractor hitch | US18598538 | 1938-01-20 | US2151207A | 1939-03-21 | HILDE EDDIE A |
| 75 | Tractor for agricultural implements | US12261037 | 1937-01-27 | US2118181A | 1938-05-24 | GEORGE FERGUSON HENRY |
| 76 | Relief attachment for cultivators | US71430634 | 1934-03-06 | US2005045A | 1935-06-18 | NELSON HARRY W |
| 77 | Yieldable draft device for ground working implements | US54360231 | 1931-06-11 | US1892007A | 1932-12-27 | ROBINSON CHARLES W |
| 78 | Leveling device for plows | US14063826 | 1926-10-09 | US1688615A | 1928-10-23 | DANIEL EARLE H |
| 79 | Tractor coupling | US54877922 | 1922-04-01 | US1423785A | 1922-07-25 | ADOLPH WILDE |
| 80 | Plowing-machine | US29823519 | 1919-05-19 | US1347589A | 1920-07-27 | RAFAEL RAMOS; DE CARDENAS AMBROSE |
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