US2351369A - Disk plow - Google Patents

Description

June 13, 1944. A. RUTTERQ DISK PLQW Filed Oct. 16, 1941 4 Sheets-Sheet '1 \NVENTOR ATTORNEY June 13, 1944. A. E. RUTTER DISK PLOW 4 Sheets-Shet 2 Filed Oct. 16, 1941 8 INVE NTOR W 572% aw /$5M ATTORNEY June 13,- 1944.

A. E. RUTTER DISK PLow Filed Oct. 16. 1941 4 Sheets-Sheet 5 INVENTOR June 13, 1944. A. E. RUTTER 2,351,369

msx PLOW Filed Oct. 16, 1941 4 Sheets-Sheet 4 \NVENTOR ATTORNEY Patented June 13, 1944 UNlTED STATES PATENT OFFICE AlvahiE. Rutter, Rockford, 111.,

assignor to J. I.

Case Company, Racine, Wis., a corporation Application October 16, 1941, Serial No. 415,153

13 Claims.

The present invention relates to plows and more particularly to disk plows, and an object of the invention is to generally improve the construction and operation of implements of this class. Another object is to improve such a plow in respect to the adjustments thereof. A further object is to improve the power lift in points of simplicity and efiectiveness. V

A'further object is to provide an improved hitch for such a plow and which will provide better draft connections and improve the penetration of the disks.

Further objects are to provide improved expedients for realization of the above objects.

Further objects and advantages will become apparent from the following specification and annexed drawings in which 2 Figure 1 is a top plan view of an illustrative embodiment of a disk plow constructed according'to the invention, but with certain parts removed.

Fig. 2 is a vertical sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a top plan view of a portion of Fig. l

with parts removed and other parts broken away.

Fig. 4 is a vertical sectional view on the line 44 of Fig. 1 with parts removed.

Fig. 5 is a right side elevation of a portion shown in Fig. l with parts removed and partly in section on the line 5-5 of Fig. 3.

Fig. 6 is a similar view showing the parts in a different position. V

Fig.7 is a right side elevation of the machine diagrammatic in character erative elements of the power lift, the major part of the rest of the structure being omitted.

Fig. 8 is a plan view of a rangement similar to Fig. '7. g V

Fig. 9 is a vertical section taken on the line 9-9 of Fig. 1.

As seen in Fig. 1 the plow illustrative of the invention includes a beam 20 supported at the front by a furrow wheel generally designated as 2| and at the rear by a rear truck or support generally designated as22 carried by a land wheel 23 and a rear furrow wheel 24. Beam ZOcarries disks 25, 2B and 21 united. with the beam by standards 28, 29 and 30, and the whole is drawn by 'a tractor or thelike generally designated as 3| coupled to a draw bar 32 connected with the plow structure through draw. elements,'members or links 33', 34. and 35. 1 v I Flows of this characterare operatedat times with one or'more disks and 26 removedybeshowing certain op-v slightly modified ar cause of ground conditions, available power or stance truck 22 otherwise, and in this event it is necessary to prior constructions, it has beennecessary to disassemble the structure and reassemble itwith truck 22 properly located. The'parts are heavy and this operation accordingly required the use of powerful jacks, the help of several men and was generally inconvenient. In the present inmay be shifted on beam 20 without destroying its supporting relation thereto, whereby disk 25 for example can be removed and the truck moved to the dotted position in Fig. 1 without the use of jacks or extra help.

As seen in Figs. 2 and 3, beam 20 is formed of suitable configuration, in' the present instance roughly an I-beam so as to provide guiding channels in the sides thereof. Truck 22is preferably formed of angle plates having downwardly extended flanges 36 and 31 and upper horizontal flanges 38 and 39. Engaged with flanges 38 and 39 is a unit or clamping means generally designated as 40 and comprising in the present instance a pair of angle plates having lower horizontal flanges 4| and 42 and vertical flanges 43 respectively. Flange 4| is attached to flanges 38 and 39, respectively by bolts 45 and 46, flange 42 being united with flanges 38 and 39 by bolts 41 and 48. Flanges 43 and 44 extend upwardly along the sides of beam 20 and may be clamped against the beam as by bolts 49 and 50 engaged in aligned holes in flanges 43, 44 and beam 20. Flanges 43 and 44 have bosses, inserts or guide members 5| and 52 preferably welded or otherwise united therewith for sliding engagementbetween the upperand lower flanges 53 and 54 of'I-beam 20. When the clamping pressure of bolts 49 and 50 is relaxed or removed, inserts 5| and 52 maintain clamping portion 43 substantially in correct relation with beam 20 so that truck 22 may still carry the weight of the rear end of the beam even though it can be Holes are preferably provided for bolts 43 and relation to beam 20 which adjustment is neces j the beam to a new position.

pivotally connected at 59 to flange 42 and extends rearwardly over fiange 38 of trunk 22. i 60 suitably united with fiange 38 extends upwardly and is traversed by .bolt 58.:=' Nuts. BI

An ear and 62 are preferably arranged-on bolt 58 oneither side of ear of which bolt 58 may or pull on flange 42 to cause ing movement of truck 22..

be caused either to push 60 through theymanipulation the desired SWing tening, of both nuts 6| and 62 againstear .69 will lock theparts 7 against appreciablejdisplacement. I

Flanges 35 and-3,1 carrybetween them bearings of any suitable or wellknown-type ,63 and 54 in which a journal portionlii of,a crank axle having. an. arm 56 .is' rotatably engaged. Arm 65, as more particularly shown injFigl, extends to a power lift, clutch of suitable or wellknownform generally designatedaslfl, clutch 81 being supportedand actuatedfby above mentioned land wheel 23.

Power lift clutch 61 includes a crank 68 to which is connected a strut 69 as more particularly shown in Fig. 4 in the presentjinstance threaded and engaged in a nut 19 pivoted at 1! to a bifurcated or other suitable arm .12 fixed with upper flange 39.... Strut 99 engages-a block,13

suitably pivoted to crank .59 and is" precluded from relative longitudinal movement by collars 14 and .15. Adjustment of strut .69 (in nut. 10 will accordingly change the position. of arm and. accordingly, in swell-known. manner, the .plowing. Journal portion. 95, as seen in Figs. 1, 5 and 6 arm 19 fixed on or constituting part of a pintle ,19 journaled -in brackets 80 and 8| extending .rearwardly-f-rom truck 22 and in the present: instance welded or suitably fixed with flanges .39 ,and...3 8. a fitting 82 in which is journaled a portion 83 of a crank axle :84Qsupporjted -lbylabove mentioned rear furrow wheel .24.; Crank axle 84 may caster in fitting 82 .butcani be adjusted as by a set screw 85 tolimit its movement in a counter-clockwise direction as vseen in Figs. 1 and. 3. 7

- As seen in Fig. .6, link11 has a pintleportion 86 engaged in above mentioned arm 16 and is threaded for reception-of adjusting nuts 81-and 88 engaged at either end of a fitting 89 having a stud or journal portion 99 engaged in arm 18. Thus, as seen in Figs. 5 and 6, rotation of journal portion 55 caused by power; lift 18 as above described, will cause opposite rotation of pintl 19 through arms-16 and 18 .and link; 11.,

The position and dimensions of arms 15 and 18 are so chosen that arm 16 and link 11 aresubstantially in dead center relation when axle 65-66 ,is in the up or plowing position. Any reaction on axle 84 will, therefore have no appreciable-effect on axle. 65-,-.66., In other words,

in position whenthe axle 84 is in effect locked implement is plowing. Furthermore, it is noted that it 'is necessarywhen;- the plo w goes from for wheel 23 to transport to plowing position 'Pintle .19 carries has an arm16 connected by p rise a distance equivalent to the clearance of the disks above the ground plus the desired depth of plowing, whereas in general, furrow wheel 24 needs to rise only a distance equivalent to the clearance of the disks above the ground. This is so because wheel 24 runs on the bottom of the last furrow formed by the disks. Owing to the dead center relation above described, this is automatically effected, since an appreciable change in the position of arm 16 for varying the plowing depth, as seen in Fig. 6, will have no appreciable effect on arm 18 or furrow wheel 24. Thus the plowing depth adjustment can be made by means of crank 69 without necessitating any adjustment of link .11.

An initial adjustment of link 11 to compensate for unavoidable slight inequalities in manufacture, for leveling the plow, or for other reasons, can be obtained by manipulating nuts 81 and 88 whereby link. 11 may be clamped in. various positions relatively to fitting 89.

Power lift 61 may be tripped manner by ,a rope,9I leadingto connecting at its other-end with an arm 92.

Front furrow wheel 2,.I is controlled from axle 65 as follows.

Referring to Fig.

an axle element generallyfdesignated as ,92 and having an upright shaft,

suitably united with fitting 95, a bearing .96is journaled .on portion 94 and prevented from moving axially by collars 7, wheelZl is journaled on ,in' well-known the tractor and v n or spindle portiongili Portion 94.is slidablyfjournaled,inla fitting. .5;" beam 20. At a pointabove or the like 91 and 98 suitably fixed with portion.

pivotally connected 'at parallel to beam 20. However, it may beconsidered that arm I09 has a componentof 'movement in the direction of member- III so that I of suitable, or

I95 fixed on a journal bearings Inland I98 Journal I06 'has an arm lil exetnding generally upwardly. from portion I96. and.

III) with a linkv orflpull H rod member generallydesignated as III. actu- II I moves generally in aplane longitudinal movementof member H I -willc'ause swinging of arm I09? portion IOE This,...as .Will be apparent,..will

cause. swingingof arm I05 'and raising or lower- I94', lever.arm

ing of axle portion 94 through link. I93. and bearing 95, as in thecase of the embodiment of Fig. '7. The difference in thegpaths of movement may cause'a change in angularity between member I I I between rod III? and-arm I99? at pivot Hil ri- Rod memberI II is in any suitable manner, in the present instances.

II2 within which isslidably},

II3, the pipeand rod I comprising a pipe disposed a rod portion beinglocked together by suitablemeans lasuset screws 'II4--II4'.

Rod III is pivoted at II5 as particularlyshown preferably made. extensible and rocking 'of journal.

andv arm I09 but which. I can be accommodatedin any well-known manner; in the presentinstance. by providing a loose .fi t" rocking of axlevportio'n 65,, 'from transport to working position or vicever'sa, will cause arm I I6: I to push or pull on rod III. It will be noted that i arm H6 moves in a plane-oblique to rod III I which extends generally in a plane parallel to beam 20. The movement of arm IIBIaccordingly may be considered to have a component in the direction of rod 1 I I and another component at right angles thereto. The movement impartedto rod III, in'the direction of its length, will be merely that of the first mentioned component and notrod III. Any change in angularity between rod H6 and rod I II may be accommodated in any suitable or well-known manner, in the present instance a loose connection at lized for this purpose. 3

Suitable assisting springs are provided for relieving the load on power lift 67.- A spring III, Figs. 1 and 4, anchored on the strut generally designated as H8, is tensioned between strut H8 and an anchorage H9, in the present instance on power lift 61, in such a position that its effective angle relatively to portion 66 decreases as its tension increases. In the present instance strut II8 comprises a bracket-portion I fixed with flanges 36 and 38 and'an arm I2I connected to bracket I20 as by bolts I22 an'd'I23. This construction yields a decided advantage in assembling the powerful spring II 1*with the other parts. Thus, with bolt I22 alone in place, arm I 2I may be swung to the dotted position indicated and with axle 66 in transport position, as

also indicated in dotted lines, spring III may be connected in position in a relaxed condition, or without appreciable stretching. -It is then a comparatively easy matter to swingarm I2I to its permanent position, as shown, and to insert bolt I23 after which spring I I1 has the correct'tension in the various desired positions.

A spring I24, Fig. '7, is also tensioned between bearing 96 and any suitableportion on fitting 95, tending to relieve lever IM and link I04, and also, accordingly, the power lift,of part of the weight of fitting 95 and its connected parts.

Returning to the hitch, member 35, Fig. 1, has a universal connection of any suitable or wellknown type as I25, to above mentioned flange 4|,

and is formed to be extensible in any suitable or well-known manner, in the present instance the member comprising pull rods I26 and I2'I united as by bolts I28 and I29, a plurality of holes I30 and I3I being provided, for example, in rod I21 for accommodating bolts I28 and I29 in different positions. Member has a universal connection at I32, with above'mentioned link 34. Member 34 is adjustable in length, in the present instance being formed of portions I33 and I34,

united as by bolts I35 and I36, a plurality of holesas I31 being provided for bolts I35 and I36 for changing the length of link member 34. Link member 34 is unitedas by a pin, bolt or the like I38, with above mentioned draw element 33 and above mentioned draw bar 32 also is united with link member 34 and draw element 33 by pin member I38. Draw element 33 has a universal connection of suitable or well-known type as I39 with a bracket I40 united "with above mentioned beam 20 as by bolts I4I.- Bracket I40, as more particularly shown in Fig. 9 extends downwardly, in the present instance to a point substantially on a level with theaxle portion 93. 'In'this manner, a desirably low hitch point is obtained forpivot I I5 being utithe application of draft force to the plow. A brace, strut, or guide member I42 extends laterally from fitting 95 and then downwardly to substantially the level of above mentioned axle portion 93 and provides an opening I43through which extends above mentioned pull rod portion I21. This maintains universal connection I32, or in other words, the hitch point of link member 34 in the desired position relatively to draw bar 32.

Because of the fact that universal connection I25 at the rear of the plow is at an elevated position, while connection I32 is at a low point, the parts being otherwise free, the linkage compriszing members 34 and 35 is depressed at I32. The draw bar pull tending to straighten this linkage therefore exerts a lifting tendency at opening I43 and a downward pull at connection I25 which forces are desirable in securing proper penetration of the rear of the plow, smooth running and correct balance.

Draw bar 32 provides a slot I44 through which above mentioned pin I38 extends and in normal forward operation pin I38 rests in the rear end of the slot as shown in Fig. 1. If it is necessary to back the outfit, draw bar 32 moves backward freely as permitted by slot I44 until a rear tail portion I45 engages one or more notches in a rack or sector member I46 fixed in the present instance as by welding or otherwise with above mentioned draw element 33. This maintains draw bar 32 in proper relation to element 33 and link member 34 so that there will be no jackknifin'g of the parts in the attempt to back.

Above mentioned axle portion 93 is provided with an arm I41 connected by a link generally designated as I48 with an ear I49 on draw bar 32 so that swinging of draw bar 32 in normal operation will cause turning of axle portion 93 in above mentioned fitting 95 for properly steering front furrow wheel 2|. Link I 48 is made extensible in any suitable manner, in the present instance comprising a pipe portion I50 having a rod I 5| slidable therein and maintained in adjustable position by set screws I52.

The operation of the plow is thought to be clear from the above description, it being noted that rear truck 22 can be shifted along beam 20 by merely removing bolts 49, 50, etc., the supporting relation between the truck and beam 20 being maintained by the sliding engagement between flanges 43 and 44 and beam 20, together with the interlocking of portions 5| and 52 with flanges 53 and 54 of the beam. Also rocking movement of axle portion caused by the power lift actuates the front furrow wheel axle through mechanism which is considerably less complicated and not known to the prior art and which is especially effective because of the leverage relation between arm I6 and pull rod III.

The pull of the tractor 3| on draw bar 32 is transmitted to the plow at advantageous points and tends to lift guide member I42 at the front of the plow and to pull down to a certain extent on rear truck 22.

Upon rocking of axle portion 65, arm 16 takes a dead center position relatively to link I'! whereby the rear furrow wheel is locked in position during operation of the plow.

Standards 28, 29 and 30 may be clamped to beam 20 in any desired relation and it is contemplated that under severe plowing conditions or if traction power is limited, standard 28 and itsattached parts, including disk 25 may be removed entirely whereupon truck 22 will be moved forwardly ias above described: pull .rod; HI :will lbeashortened andlinksfli and: I zto accommodatea.-

the new. positionoof truck 22.11; A tWo-.disk:;plow;': is thus providedinplace of thethre-disk'p10W;"'

illustratedin Fig. 1.2 Standard 29 may a1soi:be":-

removed if I necessary-within;the: contemplation" J of theinvention;

Theiabove being a complete. description of an illustrative embodiment of the invention, what is claimed as new and desired to be secured by.

Letters Patent of the United States is:

1. Ina. disk plow havingramembferv of I-beam crosssection and providingia channel.-on1either side thereof sand means for supporting the ;for-:.r I

wardv end of the. beam; abrear truck for support-:-

ing the rear .endLof .t-hezbeam; said .beam ipro-i. viding aiplura'lity of holes fora fasteningImeana; said truck .having :means:- fitting-within; the than-1:

nels andslidably engaging 'the beam: whereby it may be shifted. relatively to:thei..beam-.for=;changai ing the length of the disk plow, whilezremaining in supporting relation to the beam,xsaid-en'-.-. a I fastening gaging means providing a hole for means, and a fastening meansengaging the holes.

for securing athe truck .to the "beam in :various positions. .x a

2. In adisklplow having a beam. providing a guiding channel onia side thereof,'-and means for supporting the/forward endoof the beam, ia

rear truckfor supporting? the rear endof the beammneans for rigidly and. positively securing.

the truck to thebeam' in a plurality of adjusted positions, and/said truckhavinga portion slid-.

ably engaged with saidguidin'g channel whereby.

it maybe shifted relatively ;to the beam for changing. the ilength of. the sdisk'. plow, when. the

securing means is I disengaged, .while remaining in supporting relation to thelbeamz' 3. Ina diskplow having a beam.'providing 'a guidingchannel on'a side thereof and means forsuppo-rtingatheforward end of the beam, a rear truckfor supporting the rear end of the beam, said .beamprovidinga plurality of holes for -a fasteningmeans,-.saidtruck having a portion slidably engaging thechannel in .said beam whereby it may be shifted relatively to the beam for changingthe length of the disk plowwhile remaining in supporting relation to the beam, said means .slidably engaging thebeam being rotatably adjustablerelatively to the truck,.and means-for rigidly. securing. said: slidablemeans to thebeam in a plurality of adjusted positions. I

4. In a disk plowhaving a beam providing a guiding channel in asidethereof andmeans for lift mechanism and a'rear truck, a orankaxle on. therear truck and arranged to move from a forwardly inclined position for plowing to a nearly vertical position-fortransport, power lift mechanism'for. somoving said axle, a substantially.v horizontal; journal. portion on the crank and journaled on said -truck,.-an' arm on the crank extendingdownwardly'and rearwardly in of xsaidlaxle, and a pull: rod .pivoted'to said arm' and extending forwardly:

the transport positionand: nipwardly: to said; front ",DOWBI'Y lift mecha-: I

nismx andzin :a direction oblique :to ithexdirection of swinging movement of said arm; I

6. In v.a .disk rplow having; a. beam disposed di agonallyto the'directionof travel-of the-plow,a I

front supportingememben and; a ,rear truck;.: -a

draftphitchl ,for rtheuplow :including a draft member-pivotedwto the plow adjacent-the front end of and below said beam, a. secondcdraft. member I pivoted ItO the plowadjacent the-rear end of the bearn-;ata point substantially on a-level therewithrsaidmember extendingiorwardly to a'ipoint spaced laterally ,from .the first mentioned draft:

member and 'at alevel below said beam, guiding.

means extended fromi thelbeam forv substantially I preventing rlateral .or yerticalmovement of said draft member; a link piv otedto :the. last men-' tioned draftg-member I and. extending. to and being united with the first mentioneddraft member at a point in advance of the points of attachment;

respectively of the firstzmentioned draft memberwf to the plow, and the link-.to the secondwmen tioned draft member; and a draw bar--pivotally connected to said-.link andasaid first mentioned draftmemberat said point.-. 7. Ina disk-plow havinga beam disposed diagonally to the. direction of travel of the plow,a

front supporting means and a: rear truck; a draft i hitch for the plow-includingadraft member piv-.

oted to the-plow :adjacent the fronmend of the.

beam a draft memberpivoted to the plowadjaa centJthe rear endof the beam-.andiextending aforwardly to a point/spaced-;laterallyfrom the first i mentioned draft member; said. members .converg-i ing to and being united -:at a. pointin advance-of the points of attachment of the members to the I plow, anda draw barpivotallyconnected to saidmember at saidpoint.

8. In a disk plow having a beam.

disposed diag-g I onally to its direction of travel, a front supporting I memberand a rear-truclq'a draft hitch for the plow including a draft-memberpivotedto the" plowadjacent the front end of and below said.

beam, a second-draftmember pivotedto the plow; I adjacentthe rear end of the beam at a. point substantially on a level therewith, said member extending-forwardly.;to a point9spaced;laterally;

from the first mentioned draft member andgat a levelbelow'said beam, guiding means extended from the beam for; substantially preventing lateral or vertical movement of said-draft member; a link. pivoted to the last mentioneddraft. member and extending to and being united with the firstmentionedrdraft' member at a-point in advanced I;

the points of -attachmentrespectively of the-.first mentioned'draft member to the'plow, and-the-link to thesecond mentioned :draft member, "said link I being adjustablein length,.andia draw bar piv,-..-- otally connected to .said' link and said first men-r"? tioned draft member-at said point" 9. In a' disk -plowhavingabeam disposed diagr' onally tothe direction of travel of the plow; a... front. supportin'gmeans and afrear truck; a draft; hitch for theplow including admit-member, pivoted to the plowadjac'ent-thel front endzof said i beam, adraft member pivoted'to the plowadjae. 2

cent .the rear endof the beam and"extending .for-;.-t.

wardlytjo apointspaced laterally f'rom the first; I mentioned I draftmember, guiding means for sub-.x

stantially preventing latera-l movement :of the second mentioned draft; memben'a link member 1': pivoted "to the. secondwmentioneddraftmember and united with .jthe: first: mentioned draft memt- 1 her at a point in radvance:; of -saidlink :members;

last mentioned members, a draw bar united with said members at said point for swinging and predetermined longitudinal movement relatively thereto, and said draw bar having a portion engageable with said rack for preventing swinging movement of said draw bar upon rearward movement of said draw bar.

10. In a disk plow having a beam disposed diagonally to the direction of travel, a front support including a steerable furrow wheel and a rear truck; a draft hitch for the plow including a first draft member pivoted to the plow adjacent the front end of the beam, a second draft member pivoted to the plow adjacent to the rear end of the beam and extended forwardly to a point spaced laterally from said first draft member, a link member pivotally connected with the second draft member and united with the first draft member at a point in advance of the plow, a draw bar pivotally connected with the last mentioned members at said point and a steering connection from said draw bar to said steerable furrow wheel.

11. In a disk plow having a beam member of a cross section providing a guiding channel in at least one side thereof, means for supporting the forward end of the beam, a rear truck for supporting the rear end of the beam, and having an upstanding element on either side of the beam, at least one of said upstanding elements having a guiding portion engaging said guiding channel, and means for clamping said upstanding portions into rigid engagement with said beam for fixing the position of the rear truck relatively to the beam.

12. In a disk plow having a beam member of a cross section providing a guiding channel in at least one side thereof, means for supporting the forward end of the beam, a rear truck for supporting the rear end of the beam and having an upstanding element on either side of the beam, at least one of said upstanding elements having a guiding portion engaging said guiding channel, said beam providing a plurality of holes for a fastening means and said slidable means providing a hole for a fastening means, and a fastening means engaged in said holes for clamping said upstanding portions into rigid engagement with said beam for fixing the position of said rear truck relatively to said beam.

13. In a disk plow having a beam and means for supporting the forward end of the beam, a rear truck for supporting the rear end of the beam, said truck having a portion slidably engaging the beam whereby it may be shifted relatively to the beam for changing the length of the disk plow while remaining in supporting relation to the beam, said means slidably engaging the beam being rotatably adjustable relatively to the truck, and bolt and nut means engaged between said truck and said slidable portion and extending in a direction to cause turning of the truck relatively to the slidable portion upon adjustment of the bolt and nut means, and to positively maintain the rotated adjustment of the truck.

ALVAI-I E. BUTTER.

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