US3789928A - Plough beam with spring mechanism - Google Patents

Plough beam with spring mechanism Download PDF

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Publication number
US3789928A
US3789928A US00254964A US3789928DA US3789928A US 3789928 A US3789928 A US 3789928A US 00254964 A US00254964 A US 00254964A US 3789928D A US3789928D A US 3789928DA US 3789928 A US3789928 A US 3789928A
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United States
Prior art keywords
linkage
plough
tube
ploughing
spring
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Expired - Lifetime
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US00254964A
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English (en)
Inventor
O Nja
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Kverneland AS
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Kverneland AS
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
    • A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
    • A01B61/044—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis
    • A01B61/046—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis the device including an energy accumulator for restoring the tool to its working position
    • A01B61/048—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis the device including an energy accumulator for restoring the tool to its working position the connection or the energy accumulator being active in two opposite directions, e.g. for reversible plows

Definitions

  • ABSTRACT A plough beam having a spring mechanism which per- Cl 72/7l1 mits, lateral sidewise motions in addition to motions [51] Int. Cl AOlb 35/24 up d down when enccuntering an obstacle. [58] Field of Search... 172/705, 261, 264, 706, 707,
  • Ploughs having spring mechanisms which give way when the plough strikes an obstacle in its path are to be found in many different embodiments which must be considered satisfactory when the instruments and tractors used are relatively light-weight.
  • the object of the present invention is thus primarily to provide a construction of a plough and plough beam such that the plough unhindered by adjacent ploughs and unhindered by a rigid construction can follow the proper path through the soil by being able to avoid obstacles in any direction whatsoever without incurring strains for which the plough construction is not adapted, and the suspension of the plough beam shall, moreover, be such that the plough after passing the obstacle reverts to working position and does not remain in raised inactive position as is the case with several known plough embodiments.
  • the plough beam is provided with a linkage which permits movement of the plough in lateral direction and the plough can also be raised and lowered in known manner, whereby the plough can avoid obstacles in any direction.
  • the linkage is comprised of two members where one member is disposed, for example, on the three point suspension of a tractor or in an implement frame where this supports several ploughs, and the two members are maintained in contact by a spring mechanism which is sufficiently tight that the members are in complete contact when the plough works normally in good soil.
  • a spring mechanism which is sufficiently tight that the members are in complete contact when the plough works normally in good soil.
  • the linkage is further effected so that it has two predetermined pivotal axes so that the plough beam pivots about a horizontal axis when the plough must be raised in order to pass an obstacle, and pivots about a vertical axis when it is to swing to the side of an obstacle. Combinations of movements about these two axes permit movements of the plough in any direction whatsoever in order to avoid obstacles.
  • any direction whatsoever is meant any lifting of the plough in the vertical plane combined with any swinging of the plough to one side in the horizontal plane with resulting movements in direction more or less upwardly inclined to one or other side.
  • tubular plough beams there is the further advantage that the same spring mechanism may be used either on one-way ploughs or two'way ploughs, that is to say a plough with two plough shares and mould boards which are adapted to turn to the right or left respectively.
  • the plough bodies are then disposed diametrically above one another about an axis of rotation for the plough beam.
  • the righthand and left-hand plough will then be released by the same resistance, the spring mechanism and distance from the point of the plough to the pivotal axes being equal.
  • the invention thus relates to a plough beam which permits the plough to swing upwardly when striking an obstacle in its path, and it is substantially characterized in that the plough beam has a linkage which permits movement of the plough also in lateral direction and other directions which lie between movement in horizontal and vertical plane.
  • a further feature of the invention is that the linkage comprises two members which are maintained in contact by means of the spring mechanism, the said links being adapted to tip relatively, and it is also to advantage that one member of the linkage is provided with four balls which are disposed in each corner of an imaginary square, the second member of the linkage having recesses adapted to the balls, the said balls and recesses forming bearings for relative pivoting of the members.
  • a suitable embodiment is characterized in that the plough beam which projects from one part of the linkage is in the form of a tube having a rod for connection with the spring mechanism disposed therewithin.
  • the rod is connected to one member of the linkage and extends through the tube and, at its free end, is connected to a side piece which forms securement for one end of a pair of leaf springs, the other ends of which are rigidly connected to the tube.
  • a second embodiment of the spring mechanism is characterized in that a rigid rod which is connected to one member of the linkage extends through the tube and is connected to a lever between the ends thereof, the said lever being connected at its ends with the tube and the end of a spring respectively, and adjustment is possible in a simple manner in that an intermediate piece is provided between the lever and the end of the spring, the said intermediate piece being pivotally connected to the lever and spring for contact wtih an adjustable abutment on the lever. If, for some reason, a rigid plough is required, the spring mechanism can be left out, and the linkage is put out of action by means of a rigid rod which forms the connection between one member of the linkage and the free ends of the tube.
  • shock-absorbing body between the rod and the free ends of the tube, for example, resilient discs disposed between the end of the tube and a nut on the rod.
  • the two members of the linkage can move as freely relatively as the case is when one member rests on four balls on the second member and, on movements upwardly inclined to one or the other side, it rests and pivots on only one ball, it is important to be able to guide the movements of the plough beam so that, on return movement, bearing is achieved on all the balls and, in accordance with the invention, this is achieved in that a member of the linkage mounted on the tube is connected to a guide adapted to prevent substantial rotation of the plough beam with the plough about the axis of the tube.
  • a suitable embodiment example of this guide is characterized in that the member of the linkage which is mounted to the tube has a straight end surface and the second member of the linkage has a rigid surface which is so closely adjacent the said end surface that this is guided and prevented from rotating to a substantial degree about the axis of the tube.
  • FIG. 1 is a two-way plough or alternating plough viewed from the side and effected in accordance with the invention
  • FIG. 2 is the same plough seen from above,
  • FIG. 3 illustrates, in greater dimension, how the linkage which permits the desired pivotal movement is constructed
  • FIG. 4 shows the linkage viewed in perspective during a movement of the plough obliquely upwards to the right when regarding the implement from behind
  • FIG. 5 is a second embodiment example of the plough beam viewed from above and,
  • FIG. 6 is a single rigid plough viewed from the side.
  • ploughs 1 and 2 are shown mounted on a common plough beam 3.
  • the plough beam is, with a linkage generally signified by 4, connected to a rotating mechanism for alternating ploughs or two-way ploughs, (not shown but known per se) and this turning mechanism is mounted on the hydraulic lifting means of the tractor.
  • This mechanism ensures that one or other of the ploughs l and 2 is in activity so that the plough furrow is turned to the same side whether the plough drives in one or other direction over the soil.
  • the plough beam 3 is provided with a spring mechanism comprising a first set of spring mountings 5, 5 (see FIG.
  • the linkage has two main members 9 and 10 where member 9 in the shown embodiment example has four balls 11 which are placed in the corners of a rectangle.
  • the second member 10 has correspondingly placed recesses or hollows 12 which fit the balls 1 1 and, in resting position normal working position, there is full contact between the balls 11 and the recesses 12 by reason of the spring mechanism which is now further explained.
  • a rigid rod 13 extends rearwardly through the tubular plough beam 3, and the rod 13 is connected to the slide piece 6 (FIG. 2).
  • the force exerted by the springs 8 maintains the two members 9 and 10 of the linkage in firm contact with each other and thereby, also the plough in correct working position insofar as the resistance against the movement of the plough through the soil is below a predetermined magnitude dependent on the mechanical strength and shape of the plough.
  • the spring force is, however, intended to allow movement of the plough 2 when this strikes an obstacle 14. When the said resistance value is exceeded, the leaf springs 8 will break out as illustrated in broken lines on FIG.
  • the members 9 and 10 of the linkage 4 can move away from each other as illustrated in broken lines on FIG. 1, whereby the plough 2 is raised in order to pass the obstacle 14 and pivots to one side as shown on FIG. 2, in order to pass the same obstacle 14.
  • the movements up and down and to one side have been selected here as the outer limits of the movements and normally the movements will be results of greater or lesser components both in vertical direction and horizontal direction, and all such movements are permitted by the linkage in accordance with the invention.
  • FIG. 4 a situation is illustrated in perspective on FIG. 4, which has led to the plough having pivoted obliquely upward to the right on passing an obstacle.
  • the spring 8 has yielded here, and the plough pivots on the ball 11 which is positioned at the top to the right-hand side on the member 9, the member 10 being free from the remaining three balls 11.
  • FIGS. 1 and 2 a spring mechanism having two springs 8 is described, however, an embodiment having one spring 17 can well be envisaged as illustrated on FIG. 5.
  • the rod 13 is connected here to a lever 18 which, at one end, is pivotally mounted to the tube 3 in the point 19.
  • the lever 18 is further, at a point 20, pivotally connected to an intermediate piece 21 which, at its free end 22, forms a mounting for one end of the spring 17 the other end of which is mounted in a bracket 23.
  • the intermediate piece 21 bears against an abutment 24, which is adjustable in that a bolt 25 can be screwed out of or into a threaded bushing 26.
  • the spring 17 can be tightened to a greater or lesser degree and, in this manner, is regulated to a predetermined force which is to be exceeded when the plough must pivot over an obstacle in one or other direction.
  • the plough beam 3 is tubular and that the linkage 4 is held together by a rod 13 makes it possible in a simple manner to convert the plough to a rigid plough as illustrated on FIG. 6, when there is no need for the plough to pivot or move.
  • a certain shockabsorbing effect can be achieved however, by inserting a resilient element, for example, in the form of spring discs as indicated at 27 on H6. 6. With a nut 28, the spring discs 27 are tightened to a sufficient degree that, for all practical purposes, the linkage 4 can be regarded as a rigid, non-resilient linkage and only on very great strain do the spring discs 27 yield.
  • the invention is particularly suitable for alternating ploughs or two-way ploughs where, on the same plough beam, two diametrically opposing ploughs are provided, and furthermore the movement possibilities of the plough make possible the use of the plough in multi-share ploughs, since movement of one plough in one or other direction entailing increased strain on adjacent ploughs or the suspension of the plough or the tractor is avoided.
  • a ploughing implement adapted to be drawn by a tractor have a three-point suspension lifting mechanism on which is supported a rotating means for a ploughing implement, which ploughing implement comprises a ploughing beam;
  • one member of said linkage having mounted thereon four balls arranged in a square, and said other member having four recesses adapted to fit said four balls, said balls and recesses forming four bearing members for the relative pivoting of said linkage members;
  • a spring means operatively connected with said linkage to urge said two members into contact with each other;
  • said linkage being pivotable about a horizontal axis when the plough must be raised to pass an obstacle and also pivotable about a vertical axis for lateral movements of the plough.
  • the ploughing implement according to claim 1 characterized in that the plough beam projects from one member of the linkage and is in the form of a tube housing a rod for connection to the spring means lying therewithin.
  • the ploughing implement according to claim 4 characterized in that between the lever and the end of the spring is provided an intermediate piece which is pivotally connected to the lever and spring, for bearing against an adjustable abutment on the lever.
  • the ploughing implement according to claim 2, characterized by said rod is disposed in the tube as a rigid connection between one member of the linkage and the end of the tube.
  • a shock-absorbing body is provided, for example, in the form of spring discs, disposed between the free end of the tube and a nut which is screwed onto the rod.
  • the ploughing implement according to claim 8 characterized in that the member of the linkage which is mounted to the tube has a straight edge surface and a second member of the linkage has a rigid surface which is so closely adjacent the said edge surface that it limits the said rotation.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Insertion Pins And Rivets (AREA)
  • Sewage (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
US00254964A 1972-02-01 1972-05-19 Plough beam with spring mechanism Expired - Lifetime US3789928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO250/72*[A NO134354C (fi) 1972-02-01 1972-02-01

Publications (1)

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US3789928A true US3789928A (en) 1974-02-05

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US00254964A Expired - Lifetime US3789928A (en) 1972-02-01 1972-05-19 Plough beam with spring mechanism

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Country Link
US (1) US3789928A (fi)
AT (1) AT322250B (fi)
BE (1) BE784214A (fi)
CA (1) CA958582A (fi)
DE (1) DE2226449B2 (fi)
ES (1) ES403407A1 (fi)
FI (1) FI56296C (fi)
GB (1) GB1352644A (fi)
NL (1) NL7207257A (fi)
NO (1) NO134354C (fi)
SE (1) SE387817B (fi)
SU (1) SU414765A3 (fi)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452317A (en) * 1982-02-08 1984-06-05 Versatile Corporation Trip mechanism
EP0181039A2 (en) * 1984-11-09 1986-05-14 C. van der Lely N.V. A plough
US4660652A (en) * 1983-08-30 1987-04-28 Versatile Corporation Hydraulic trip mechanism
WO2015057079A1 (en) 2013-10-18 2015-04-23 Kverneland Group Operations Norway As Attachment arrangement for a leaf spring compound
GR1009047B (el) * 2015-12-10 2017-05-31 Χρηστος Βασιλειου Αντωνοπουλος Αροτρο με υποβοηθηση ελασματος τυπου σουστας και ευκολη προσαρμογη σε νεες και παλιες κατασκευες αροτρων

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2210265C3 (de) * 1970-05-20 1984-03-08 Rabewerk Heinrich Clausing, 4515 Bad Essen Stein- und Überlastsicherung für Volldrehpflüge
GB1480918A (en) * 1974-09-24 1977-07-27 Ransomes Sims & Jefferies Ltd Ploughs
GB1483834A (en) * 1975-01-17 1977-08-24 Ransomes Sims & Jefferies Ltd Multi-furrow ploughs
FR2341254A1 (fr) * 1976-02-23 1977-09-16 Beauvais Robin Ebra Ets Dispositif pour assurer une liaison de traction entre un engin tracteur et un instrument de travail de la terre
FR2373217A1 (fr) * 1976-12-10 1978-07-07 Naud Expl Charrues Perfectionnements aux charrues
FR2386238A1 (fr) * 1977-04-06 1978-11-03 Gregoire & Cie Besson Perfectionnements aux charrues a eclipsage et retour automatique en position
FR2436549A1 (fr) * 1978-09-22 1980-04-18 Naud Expl Charrues Perfectionnements aux machines aratoires
FR2451152A1 (fr) * 1979-03-15 1980-10-10 Viaud Ste Nle Appareil aratoire pourvu d'un dispositif de securite pour ses outils
DE3124314C2 (de) * 1981-06-20 1983-12-15 H. Niemeyer Söhne GmbH & Co KG, 4446 Hörstel Überlast-Sicherheitsvorrichtung für Pflüge
GB2120062B (en) * 1982-05-18 1985-10-23 Dowdeswell C V R Yieldable plough body mounting
DE3419960A1 (de) * 1984-05-29 1985-12-05 Eberhardt Pflugfabrik GmbH, 8871 Waldstetten Stein- und ueberlastsicherung fuer pfluege u.dgl.
NL8402540A (nl) * 1984-08-20 1986-03-17 Lely Nv C Van Der Ploeg.
DE3664994D1 (en) * 1985-04-04 1989-09-21 Lely Nv C Van Der A plough
FR2593992A1 (fr) * 1986-02-10 1987-08-14 Roger Andre Dispositif de securite pour charrues.
AT389415B (de) * 1988-06-10 1989-12-11 Vogel & Noot Landmasch Pfluganordnung
FR2670358A1 (fr) * 1990-12-17 1992-06-19 Pichon Sa Dispositif de securite pour dents de machines de travail du sol.
DE10313177A1 (de) * 2003-03-25 2004-10-07 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Überlastsicherheitseinrichtung für Bodenbearbeitungsgerät
DE10313178A1 (de) * 2003-03-25 2004-10-14 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Überlastsicherheitseinrichtung für Bodenbearbeitungsgeräte
DE10313179A1 (de) 2003-03-25 2004-10-07 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Überlastsicherheitseinrichtung für Bodenbearbeitungsgeräte
CN108914855B (zh) * 2018-07-28 2024-06-28 安徽南博智能环境装备股份有限公司 一种冲洗车喷嘴升降防撞装置
CN109863861A (zh) * 2019-03-21 2019-06-11 曹景文 一种新型手扶式多功能精量播种机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2828678A (en) * 1954-05-11 1958-04-01 Sokolik Edward Resilient mounting for a ground working implement
US3490544A (en) * 1966-11-23 1970-01-20 Byron L Godbersen Harrow attachment breakaway connection with overhead position
US3517748A (en) * 1968-08-26 1970-06-30 Int Harvester Co Two-way plow trip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2828678A (en) * 1954-05-11 1958-04-01 Sokolik Edward Resilient mounting for a ground working implement
US3490544A (en) * 1966-11-23 1970-01-20 Byron L Godbersen Harrow attachment breakaway connection with overhead position
US3517748A (en) * 1968-08-26 1970-06-30 Int Harvester Co Two-way plow trip

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452317A (en) * 1982-02-08 1984-06-05 Versatile Corporation Trip mechanism
US4660652A (en) * 1983-08-30 1987-04-28 Versatile Corporation Hydraulic trip mechanism
EP0181039A2 (en) * 1984-11-09 1986-05-14 C. van der Lely N.V. A plough
EP0181039A3 (en) * 1984-11-09 1986-08-13 C. Van Der Lely N.V. A plough
US20160245355A1 (en) * 2013-10-18 2016-08-25 Kverneland Group Operations Norway As Attachment arrangement for a leaf spring compound
CN105899066A (zh) * 2013-10-18 2016-08-24 格兰集团营运挪威股份有限公司 片状弹簧组合的附接装置
WO2015057079A1 (en) 2013-10-18 2015-04-23 Kverneland Group Operations Norway As Attachment arrangement for a leaf spring compound
AU2014335014B2 (en) * 2013-10-18 2016-12-15 Kverneland Group Operations Norway As Attachment arrangement for a leaf spring compound
EP3057397A4 (en) * 2013-10-18 2017-06-21 Kverneland Group Operations Norway As Attachment arrangement for a leaf spring compound
US10132377B2 (en) * 2013-10-18 2018-11-20 Kverneland Group Operations Norway As Attachment arrangement for a leaf spring compound
EA031081B1 (ru) * 2013-10-18 2018-11-30 Квернеланд Груп Оперейшнз Норвей Ас Листовой рессорный блок
CN105899066B (zh) * 2013-10-18 2018-12-21 格兰集团营运挪威股份有限公司 片状弹簧组合的附接装置
GR1009047B (el) * 2015-12-10 2017-05-31 Χρηστος Βασιλειου Αντωνοπουλος Αροτρο με υποβοηθηση ελασματος τυπου σουστας και ευκολη προσαρμογη σε νεες και παλιες κατασκευες αροτρων

Also Published As

Publication number Publication date
NL7207257A (fi) 1973-08-03
FI56296C (fi) 1980-01-10
SU414765A3 (fi) 1974-02-05
GB1352644A (en) 1974-05-08
SE387817B (sv) 1976-09-20
DE2226449B2 (de) 1981-02-05
BE784214A (fr) 1972-09-18
NO134354C (fi) 1976-09-29
FI56296B (fi) 1979-09-28
ES403407A1 (es) 1975-04-16
CA958582A (en) 1974-12-03
NO134354B (fi) 1976-06-21
DE2226449A1 (de) 1973-08-09
AT322250B (de) 1975-05-12

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