US2637256A

US2637256A - Reversible colter for two-way plows

Info

Publication number: US2637256A
Application number: US189007A
Authority: US
Inventors: Jesse G Lindeman
Original assignee: Deere and Co
Current assignee: Deere and Co
Priority date: 1950-10-07
Filing date: 1950-10-07
Publication date: 1953-05-05
Anticipated expiration: 1970-05-05

Description

1953 J. G. LINDEMAN REVERSIBLE COLTER FOR TWO-WAY PLOWS 3 Sheets-Sheet 1 Filed 001:. 7, 1950 INVENTOR.

JESSE G. LINDEMAN ay 5, 1953 .1. e. LINDEMAN 2,637,255

REVERSIBLE COLTER FOR TWO-WAY FLOWS Filed Oct. 7, 1950 3 Sheebs-Sheet 2 FIG. 2

INVEN TOR.

JESSE G. LINDEMAN May 5, 1953 J. G. LINDEMAN 2,637,256

REVERSIBLE COLTER FOR TWO-WAY PLOWS Filed Oct. 7, 1950 3 Sheets-Sheet 5 INVENTOR. JESSE e. LINDEMAN TORNEYS Patented May 5, 1953 UNITED STAES Jesse G. Lindeman, Yakima, Wash., assignor to Deere & Company, Moline, Ill., a corporation of Illinois Application October 7, 1950, Serial No. 189,007

11 Claims.

The present invention relates generally to agricultural implements and more particularly to two-way plows and the like.

The object and general nature of the present invention is the provision of a new and improved colter construction for two-way plows in which a single colter unit is automatically reversible when the plow frame is reversed or changed from righthand plowing to left-hand plowing, or vice versa. More specifically, it is a feature of this invention to provide a colter construction including a pivoted colter frame which, carrying the colter unit, swings by gravity, relative to the plow frame, when the plows are reversed, thereby eliminating complicated operating mechanisms, latches and the like. An additional feature of this invention is the provision of a reversible colter construction which is simple and sturdy, and which is inexpensive to manufacture and assemble. Additionally, it is a feature of this invention to provide a colter construction for two-way plows in which a single colter is automatically reversible relative to the two-way plow means without any operating connections with the means or mechanisms which are utilized for reversing the plow structure. It is also a feature of the present invention to provide a new and improved colter construction in which the colter disk is automatically given a lead toward the associated plow bottom which, operating in conjunction with an adjustable stop or the like, serves to cause the colter to automatically move into the proper position relative to the associated plow bottom.

It is also a feature of this invention to provide an auxiliary attachment for one-bottom, twoway plows to convert the same into a two-bottom, two-way plow, the auxiliary attachment including its own automatically reversible colter construction whereby a single colter unit is automatically shifted, relative to the auxiliary plow bottoms, into operative position when the entire plow as a unit is reversed.

These and other objects and advantages of the present invention will be apparent to those skilled in the art after a consideration of the following detailed description, taken in conjunction with the accompanying drawings, in which:

Figure 1 is a side view of the major portion of a two-way plow of the tractor-carried type, in which the principles of the present invention have been incorporated, the plow shown in Figure 1 being adjusted or arranged so that the left-hand plow bottoms are in operating position.

Figure 2 is an enlarged fragmentary perspective view of a portion of the plow shown in Figure 1 showing particularly the novel colter construction and auxiliary frame means, for converting a one-bottom, two-way plow into a two-bottom, two-way plow, of the present invention.

Figure 3 is a fragmentary plan view showing certain details of the colter construction in operating position for left-hand plowing.

Figure 4 is a front view of the colter construction shown in Figure 3, being a view taken generally along the line 4-4 of Figure 3.

Referring now to the drawings, particularly Figure 1, the principles of the present invention have been illustrated as incorporated in a two- Way plow of the type shown in my copending application, Serial No. 605,256, filed July 16, 1945, now U. S. Patent 2,543,786, issued March 6, 1951, to which reference may be made if necessary. Briefly, the two-way plow shown in the abovementioned co-pending patent comprises a plow frame I, including a generally fore-and-aft extending beam 2, mounted for rocking movement about a generally fore-and-aft extending axis and supported for such rocking movement in a framework 3 which is connected to be supported and propelled by a farm tractor by upper and lower links 4 and 5, these links being also arranged to cooperate with lifting means (not shown) which raises and lowers the plow into and out of operating and transport positions. As more clearly disposed in the aforesaid patent, crank means 1 is fixed to the forward end of the beam 2 and the plow frame I is automatically reversed by the raising and lowering of the links 4 and 5 through mechanism which includes a reversing fork 6. The present invention is not particularly concerned with the details per se of the raising and lowering and reversing mechanisms, since such are shown and claimed in the above-identified patent. However, according to the principles of the present invention, means is provided for converting a two-way plow of the type shown in the above-mentioned patent into a two-bottom, two-way plow, and such means will now be described.

Referring first to Figure 2, the present invention contemplates an auxiliary frame m which is made up of a main bar I l and two shorter bars I2 and 13, the main bar H including a forward section I5, which is apertured to receive the bolts 16, which, in the patented plow construction, secure the plow standard ll to the main frame bar 2, and a generally diagonal, rearwardly extending bar section It which at its rear end is con- 3, nected to a rear plow standard 2| that is constructed and arranged to carry, at its ends, righthand and left-

hand plow bottoms

22 and 23, as best shown in Figure 1. The standard H of the patented plow construction is similarly adapted to receive and support rightand left-hand plow bottoms'24 and 25. The plow standard 2! may be substantially identical with the plow stand ard l1, and having spaced apertures adapted to receive a set of attaching bolts which, in the case of the plow standard 2|, are indicated in Figure 2 by the reference numeral 2?. These bolts pass through apertures in the frame bar I 2 of the auxiliary frame It and rigidly secure the auxiliary plow standard 2; in position, certain of the bolts 27 being extended through apertures in the rear end of the diagonal bar section it. The left end of the frame ,bar I3 is bolted, as at 28, to the diagonal bar section It, and the forward end of the main bar section l5 and the lateral bar I3 is reenforced by an auxiliary beam 34 which, at its forward end, carries a plate 32 welded thereto, the rear end of the auxiliary beam 3| being extended into and secured to the plow standard in substantially the same Way that the rear end of the main plow beam 2 is received by and fixed to the plow standard I! of the patented one-bottom, two-way plow construction. A bracket 34 is apertured to receive a pair of bolts 35, which connect the plate 32 to the bracket 34, the inner end of the bracket 3 being turned rearwardly and apertured to receive the forward pair of bolts It that fix the plow standard I! to the rear end of the plow beam 2. Thus, whenever it is desired to convert the onebottom, two-way patented plow into a twobottom, two-way plow, all that it is necessary to'do is to remove the nuts from the bolts I 5 and install the auxiliary frame It and the associated plow standard 2! and plow

bottoms

22 and 23, both sets of plow bottoms then being reversible from one position to the other by a reversal of the main plow beam or frame I.

The patented one-bottom, two-way plow includes an automatically reversible single colter construction indicated generally by the reference numeral which cooperates with the forward bottoms 26 and 25, but when the auxiliary frame It and associated

plow bottoms

22 and 23 are added to the plow i, it is necessary to provide an auxiliary colter construction to cooperate with the

plow bottoms

22 and 23. Such colter construction will now be described. I

The bracket 34 is extended, as at 4|, to provide an apertured section 152 which is in axial alinement with an aperture 53 (Figure 2) formed in the outer portion of the frame bar N. A colter frame comprising a pair of laterally spaced, generally fore-and-aft extending bars Q6 and 47 and a pair of front and rear studs 48 and $9, is mounted for rocking movement in the

apertures

42 and 43. The forward portion of the frame t5 carries a vertical sleeve section 5| in which the vertical portion 52 of a colter shank 53 is disposed for swinging movement about a generally vertical axis. The lower portion of the colter shank 53 includes a pair of laterally spaced, generally rearwardly and downwardly extending

bars

54 and 55 that, at their lower ends carry suitable bearing means on which a rolling colter disk 56 is mounted for rotation, generally in trailing relation with respect to the vertical axis defined by the upper section 52 of the colter shank 53. Fixed to the colter shank section 52 is a clamp collar 58 that is disposed in slots 59 formed in the forward ends of the

colter frame plates

46 and 41, the colter clamp 58 including apertured ears GI and a clamping bolt 62 which, when tightened, fixedly connects the clamp 58 to the colter shank section 52. The clamping bolt 62 may be loosened to permit raising or lowering the colter shank '53 relative to the clamping collar 59. An arm 64 is secured, as by welding, to the clamp 58 and includes an upwardly extending apertured section (55 that is disposed ahead of and in substantial alinement with the stud 58 of the colter frame 45, and a spring 67 is anchored at its inner end, as by a clip 68, to the bracket 34, and, at its other end is connected by a clip 69 to the arm 64, the clip 69 being apertured to receive a pivot pin II that extends through the aperture in the arm extension 65 and through an aperture in the clamp 69, the pivot pin H having a loose fit in the associated parts.

The lower forward portions of the

colter frame plates

46 and 41 are formed with forwardly flaring portions and 16 that are connected by a short bar section Ti. The forwardly flaring portions 15 and it serve as stops for cooperation with the arm 64 that is fixed to the colter shank 53. These colter frame sections 15 and 16 are also adapted to cooperate with a pair of stops in the form of cap screws is and i9 carried by the upper and lower portions of a bracket 8! that is welded to the outer end portion 4| of the bracket 34. Lock nuts '82 serve to fix the cap screws 38 and 79 in any desired position of adjustment. The clip 58 is fixed to the bracket 34 by a bolt 84, and the position of the clip 68 may be adjusted relative to the bracket 34 by virtue of a slot formed in the clip 68 to receive the bolt 84.

As mentioned above, by connecting the auxiliary frame it, together with the auxiliary standard 2| and

auxiliary plow bottoms

22 and 23, to the beam 2 of the one-bottom, two-way plow I, the latter may be converted easily and conveniently into a two-bottom, two way plow. Also, the colter construction described above is connectible to and disconnectible from the plow l with the auxiliary attachment frame It. The colter construction, which forms the principal portion of the present invention, does not require any connection with the operating mechanism of the plow l but is automatically reversible, relative to the auxiliary frame Hi, Whenever the plows are reversed, as by swinging the main plow beam 2 about its axis in the frame structure 3.

As will best be seen from Figure 2, the tension of the spring 5'! acts through the arm 64 to swing the colter shank 53 into a position to give the colter disk 56 a lead toward the associated plow bottom 23. As a result of this arrangement, as soon as the plow 23 and the colter disk 55 start to enter the ground, the colter disk 56 is caused, by virtue of its lead toward the associated plow bottom, to swing laterally inwardly and. into a substantially directly rearwardly trailing relation, substantially into the position shown in Figure 3, the frame 45 swinging about the foreand-aft extending axis defined by the

studs

43 and 49 and, simultaneously therewith, the colter shank 53 swinging about its vertical axis as defined by the vertical section 52 until the associated colter frame section 16 comes into engagement with the associated stop member 19, as shown in Figure 4. Since the spring 67 is connected, through the pivot II, with the arm 64 substantially in line with the axis of swinging of the colter frame 45, any tension in the spring 61, caused by the colter disk being swung into a rearwardly trailing relation, does appreciably affect the position of the colter frame d5.

When the main frame of the plow is reversed, as by swinging the frame about its fore-and-aft extending axis to bring the other bottoms into operating position, the colter and colter frame 45 swing relative to the plow frame under the action of gravity, since the colter disk 5'6 and major portion of the colter shank 53 lie below the axis defined by the

studs

48 and 49. As a result of this arrangement, the colter disk 58 remains in contact with the ground, unless the plows are raised into their transport position, and is therefore ready to cooperate with the other plow bottom. In its other position relative to the frame it], the colter frame 45 swings toward the other stop member 18, the lower flared portion 15 of the colter frame 65 then contacting the stop member '18 to determine the position of the colter frame relative to the plow bottom now in operating position. If desired, the connection between the spring 67 and the arm fi l may be made at a point slightly above the axis of swinging of the colter frame 45 in the auxiliary plow frame Hi, this being the construction illustrated in Figure 4. This arrangement has the advantage that the tension in the spring 61 has a slight tendency to swing the colter disk 58 outwardly away from the associated plow bottom but not with sufficient force to affect the inward swinging of the colter 56 when it is in the ground. However, with the tendency to swing outwardly, as just mentioned,

the colter disk 56 and associated parts remain in depending relation as the plow frame H! is re versed, the spring 61 thus ensuring that there will be no appreciable tendency for the colter 56 to SWlIlg with the plow frame ill, rather than remaining in the lowermost position in readiness to cooperate with the other plow bottom. When the plow frame is reversed, carrying with it the bracket 34 and the spring ill, the latter acts in each position to swing the arm 64 so as to impart an inward lead to the colter disk 5%, thus causing it to swing inwardly toward the associated plow bottom.

While I have shown and described above the preferred structure in which the principles of the present invention have been incorporated, it

is to be understood that my invention is not to be limited to the particular details shown and described above, but that, in fact, widely difierent means may be employed in the practice of the broader aspects of my invention.

What I claim, and desire to secure by Letters Patent is:

1. In a plow having a plow bottom and a frame on which said plow bottom is mounted, the improvement comprising a colter including a colter disk and a generally vertically extending shank to the lower end of which said disk is rotatably connected, a colter frame in which the upper end of said colter shank is journaled for rocking movement about a generally vertical axis, means connecting said colter frame with said plow frame for movement relative to the latter about a generally horizontal axis, spring means acting against said colter shank for swinging the latter about said vertical axis so as to tend to cause the colter to have a lead toward the associated plow bottom, and adjustable means carried by said plow frame for limiting the inward swinging of said colter frame and shank about said horizontal axis.

2. In a plow including a frame and a plow bottom carried thereby, a colter construction comprising a colter frame, means for connecting said colter frame with the plow frame for relatively free swinging movement relative to the latter about a generally fore-and-aft extending horizontal axis through substantially a colter disk, a colter shank on which said disk is rotatably mounted, said shank including a vertically extending portion, means for connecting the vertical portion of said colter shank with said colter frame for accommodating rotation of said colter shank relative to said colter frame about a generally vertical axis, said colter shank being constructed so that the colter disk occupies a trailing position relative to the vertical axis defined by said colter shank, and means for limiting the movement of said colter frame about said horizontal axis at each end of said substantially 180 movement.

3. A colter support for an implement including a frame and a plow bottom carried thereby, said colter support comprising a pair of brackets attachable to said frame in generally fore-andaft spaced relation, a colter frame adapted to be pivotally mounted on said brackets for lateral swinging about a generally horizontal fore-andaft extending axis, a colter disk, a colter shank rotatably receiving said colter disk and mounted for rocking movement about a generally vertical axis in said colter frame, and spring means acting between said colter shank and one of said brackets for yieldably swinging said colter shank and said colter frame into a given position relative to said plow frame means.

4. A colter support for an implement including a frame and a plow bottom carried thereby, said colter support comprising a pair of brackets attachable to said frame in generally fore-and-aft spaced relation, a colter frame adapted to be pivotally mounted on said brackets for lateral swinging about a generally horizontal fore-andaft extending axis, a colter disk, a colter shank rotatably receiving said colter disk and mounted for rocking movement about a generally vertical axis in said colter frame, an arm fixed to said colter shank at a point below the axis of rocking movement of said colter frame, spring means acting between the outer end of said arm and one of said brackets for swinging said colter disk and said shank relative to said colter frame, means for limiting the movement of said arm relative to said colter frame, and means for limiting the rocking of said colter frame relative to one of said brackets.

5. The invention set forth in claim 4, further characterized by said last mentioned motionlimiting means comprising an arm on one of said brackets, a part adjustably carried by said last mentioned am and cooperating abutment means on said colter frame.

6. A two-way plow comprising frame means, a pair of generally oppositely disposed plow bottoms carried by said frame means in generally fixed relation with respect thereto, means for swinging said frame means about a generally horizontal fore-and-aft extending axis so as to swing one of said plow bottoms into an operating position and the other plow bottom into a transport position, a colter frame support carried by said frame means adjacent said plow bottoms, a colter frame pivotally mounted in said support and swingable about a generally fore-and-aft extending axis, a ground-engaging colter carried by said colter frame in a position generally below said fore-and a'ft "extending colter frame axis, whereby said colter remains substantially in its grotmd-engaging position when the plow frame means is swung from one position to another to reverse the low bottoms, means acting against said colter for imparting thereto a lead toward the plow bottom in operating position, and means acting against said colter frame for limit ing the; laterally inward swinging of the colter relative to the associated plow bottom.

7. In a two-way plow including frame means and a pair of generally oppositely mounted plow bottoms, said frame means being mounted for rotation about a generally iore-and-aft extending horizontal axis so as to swing said plow bottoms between operating and non-operating positions, bracket means attachable to said frame means, a colter support carried by said bracket means for rotation about a generally fore-andaft extending horizontal axis, and a groundengaging colter carried by said colter frame in such a position that the colter swings by gravity, relative to the plow frame, when the latter is reversed, so as to remain in operative groundengaging position when the plow bottoms are reversed by swinging the plow frame about its fore-and-aft extending axis.

8. In a twoway plow including frame means and a pair of oppositely mounted plow bottoms carried thereby, said frame means being mounted for rotation about a generally fore-and-aft extending horizontal axis, a colter construction comprising bracket means attachable to said plow frame, a colter frame rotatably mounted on said bracket means for movement relative to the frame means about a generally fore-and-aft extending horizontal axis, means on said bracket means for limiting the swinging movement of said colter frame about its axis relative to said bracket means, a colter, a colter shank pivotally mounted in said colter frame for movement relative thereto about a vertical axis, stop means limiting the movement of said colter shank, and spring means acting between said bracket means and said colter shank for swinging the latter so as: to impart thereto a lead tending to cause the colter to run toward the adjacent plow bottom.

9. The; invention set forth in claim 8, further characterized by an arm fixed to said colter shank and extending forwardly therefrom, and a spring connected at one end with said arm and at the other end with said adjacent portion of said bracket means.

10. The invention set forth in claim 9, further characterized by said spring being connected with said arm substantially on the axis of swinging of said colter frame in said bracket means, said spring connection being established by means rotatable relative to the associated arm, whereby the swinging of the colter under the action of gravity when the plow fram is reversed is substantially unhampered by the action of the spring against the associated arm.

11. In a one-bottom, two-way plow, auxiliary frame means attachable to said one-bottom, twoway plow, a pair of oppositely disposed plow bottoms fixed to said auxiliary frame and 00- operating with the plows of said one-bottom. two-way plow to transform the latter into a twobottom, two-way plow, a bracket carried by said auxiliary frame, a colter frame rotatably mounted in said bracket for movement relative thereto to about a generally fore-and-aft extending axis, and a colter unit carried by said colter frame and swingabie with the latter relative to said auxiliary frame into a position adjacent one or the other of said auxiliary plow bottoms.

JESSE G. LINDEMAN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 204,484 Daniel June 4, 1878 469,756 Strait Mar. 1, 1892 FOREIGN PATENTS Number Country Date 380,535 Germany Sept. 10, 1923