CA2107125A1 - Improved tilling apparatus - Google Patents
Improved tilling apparatusInfo
- Publication number
- CA2107125A1 CA2107125A1 CA002107125A CA2107125A CA2107125A1 CA 2107125 A1 CA2107125 A1 CA 2107125A1 CA 002107125 A CA002107125 A CA 002107125A CA 2107125 A CA2107125 A CA 2107125A CA 2107125 A1 CA2107125 A1 CA 2107125A1
- Authority
- CA
- Canada
- Prior art keywords
- tilling
- plough
- primary
- soil
- tilling member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- 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
- A01B5/00—Ploughs with rolling non-driven tools, e.g. discs
-
- 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
- A01B15/00—Elements, tools, or details of ploughs
- A01B15/16—Discs; Scrapers for cleaning discs; Sharpening attachments
-
- 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
- A01B21/00—Harrows with rotary non-driven tools
- A01B21/08—Harrows with rotary non-driven tools with disc-like tools
- A01B21/086—Harrows with rotary non-driven tools with disc-like tools of the type in which the disc-like tools are individually mounted
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
- Transplanting Machines (AREA)
Abstract
A plough incorporates rotary tilling apparatus in the form of a rotatable primary concave tilling member in the form of a plough disc or similar rotary concave member (5) and a secondary smaller rotatable tilling member (6) mounted within the concavity of the primary tilling member (5) in an inclined relationship to the primary tilling member (5). The invention also relates to a plough including such tilling apparatus.
Description
~ . .
~712S
-- 1 -- .
IMPROVED TILLING APPARATUS
This invention relates to improved tilling apparatus and to ploughs embodying such tilling apparatus wherein the tilllng apparatus comprises a primary rotary tilling member, together with a secondary tilling member associated therewith.
There is a need for aiding ground preparation, for ploughing, stubble incorporation and the like which is an improvement over existing systems. Existing ground preparation equipment, such as disc ploughs, usually comprises a plough beam or frame to which is attached at least one plough disc. Such apparatus, when used for ploughing, especially for the purpose of incorporating stubble, is not always economical to use on heavy land and under unpredictably varying soil conditions. The problem of straw and stubble incorporation is well known and various solutions have been proposed, which include burning :the stubble and burying the stubble into-the soil using soil mixing implements such as tynes and mouldboard ploughs. Burning is undesirable with regard to the smoke pollution it creates whilst tynes and mouldboard ploughs are inefficient, expensive, unreliable and can result in incomplete burial of the straw.
While a variation of this plough using a soil inversion wheel is an advance over disc ploughs, there is still a requirement to provide an improved tilling apparatus particularly suitable for aiding ploughing, more especially where straw and stubble needs to be incorporated in the soil.
The present invention provides a secondary tilling member associated with the primary concave tilling member which assists in further turning and inverting the soil so as to provide a very good coverage and burial of - straw or stubble at the surface of the ground being cultivated.
. ~ .... ~ , . . . .
~712S
-- 1 -- .
IMPROVED TILLING APPARATUS
This invention relates to improved tilling apparatus and to ploughs embodying such tilling apparatus wherein the tilllng apparatus comprises a primary rotary tilling member, together with a secondary tilling member associated therewith.
There is a need for aiding ground preparation, for ploughing, stubble incorporation and the like which is an improvement over existing systems. Existing ground preparation equipment, such as disc ploughs, usually comprises a plough beam or frame to which is attached at least one plough disc. Such apparatus, when used for ploughing, especially for the purpose of incorporating stubble, is not always economical to use on heavy land and under unpredictably varying soil conditions. The problem of straw and stubble incorporation is well known and various solutions have been proposed, which include burning :the stubble and burying the stubble into-the soil using soil mixing implements such as tynes and mouldboard ploughs. Burning is undesirable with regard to the smoke pollution it creates whilst tynes and mouldboard ploughs are inefficient, expensive, unreliable and can result in incomplete burial of the straw.
While a variation of this plough using a soil inversion wheel is an advance over disc ploughs, there is still a requirement to provide an improved tilling apparatus particularly suitable for aiding ploughing, more especially where straw and stubble needs to be incorporated in the soil.
The present invention provides a secondary tilling member associated with the primary concave tilling member which assists in further turning and inverting the soil so as to provide a very good coverage and burial of - straw or stubble at the surface of the ground being cultivated.
. ~ .... ~ , . . . .
2 1 0 7 ~ 2 ~
l2 FEBRUARY l993 A preferred aspect of the invention provides a plough comprising a frame and, supported by said frame, tilling apparatus comprising a primary concave tilling member rotatable by reaction with the ground to be tilled and inclined to the direction of forward movement to provide a soil tilling and ploughing action and a secondary, smaller, rotary member mounted within the concavity of said primary tillinq member and inclined with ~ ;
respect to the primary tilling member characterised in that the secondary, smaller, rotary member is a tilling member more greatly inclined to the direction of forward movement in order to displace a sliver of soil together with stubble ~-and straw off the surface of the ground, the primary tilling member being operative in use of the plough to roll the clean soil from the underside of the sliver over to cover the sliver of soil, stubble and straw initially displaced, the secondary tilling member being rotatable about its axis.
While the primary tilling member may be a conventional concave plough disc, it is preferred that it be a soil inversion wheel comprising a substantially planar diSC having a frusto-conical flanged rim as being more efficient than the conventional disc. Similarly, the secondary tilling member may be a conventional plough disc shaped member or an inversion wheel and in some cases may -simply comprise a flat disc or skimmer. While the tilling members need not necessarily be comprised by a solid disc ~-. .. ..
~or member but may have a perforated or otherwise partially -open centre and/or have a shaped or scalloped cutting edge, this is particularly true of the secondary tilling member which may be in the form of a spoked wheel or perforated disc having a cutting perimeter as long as it has a peripheral edge which is capable of moving soil which ~ --primarily will be some of the soil displaced by the primary tilling member but which in some cases may be surface soil which has not been shifted prior to engagement with the - I United Kingdom Patent Offlce I SUBSTITU~E SHET
~ PCr International App'ication - .
PCT~6B 9 2 / O O 4 2 2 '" ~
21071h~ il2 FE8~ARY lg93 secondary tilling member.
By having the secondary tilling member freely rotatable relative to the primary tilling member, during ploughing, as will be described, both tilling members will be independently rotated due to the reaction of the forward travel of the discs over the ground being cultivated.
However, it is possible for one or both of the tilling members to be mechanically driven and one particular possibility is to have the secondary tilling member mechanically driven, for example by a universal jointed linkage, by the larger disc so as to be rotatable thereby.
Preferably, a point is provided to penetrate the ground in front of the primary tilling member and a land slide may be provided extending rearwardly from the point beneath the tilling member to assist in maintaining directional stability of the plough, both directionally and assisting in maintaining a consistent depth.
The invention will be further described, by way of example, with reference to the accompanying drawings, in which:-Figure 1 is a diagrammatic plan view of a portionof a plough embodying the present invention: -Figures 2, 3 and 4 are each diagrammaticperspective views of tilling apparatus having a plough disc as primary tilling element, the secondary tilling member shown in Figure-2 being a disc, that shown in Figure 3 being an inversion wheel and that shown in Figure 4-being a skimmer;
Figures 5, 6 and 7 are views similar to Figure 2 but each having an inversion wheel as primary tilling element and with the secondary tilling elements in Figures 5, 6 and 7, respectively being an inversion wheel, a disc and a skimmer; and Figures 8 to 13 are top views of the apparatus shown in Figures 2 to 7, respectively.
.
¦ United Kingdom Patent O~ SH -ET
I PCT International Applicatjon l SUBSTITUT L
, , .. , .. . ,;." , .
Pl~/6B~ 2 ,' 0 04 22 210 ~12~
- i1? FEBRIlaa~ l~g3 Referring to Figure 1, there is shown therein in top plan view part of a plough having a beam 1 from which are trailed various plough units by means of pivot connections 2. Trailing from each pivot connection 2 is a frame member 3, only part of each of which is shown in Figure 1. This frame member extends rearwardly over the .;
top of the tilling apparatus 4 having downwardly extending therefrom forwardly of the tilling apparatus an upright member 11 and having near its rear end a downwardly depending pivot support 8.
A hollow shaft 7 extends from pivot support 8 and rotatably carries a primary tilling element shown as a plough disc 5. Rotatably supported by means extending within the sha~t 7 is a smaller tilling member in the form of a plough disc 6. Supported by the member 11 is a plough point 10 extending forwardly of the leading edge of the . . ~
tilling members and extending rearwardly from the point 10 :
beneath the tilling members is a landslide 9. The pivot .~
support 8, instead of being supported solely from above, :.
can be supported both from above and below with the lower connection extending from near the rear end of the landslide 9.
During use of the plough shown in Figure 1, it :.
will be drawn forward over the soil in the direction of the :
arrow. The point 10 penetrates the soil so as to assist ~:.
later penetration by the leading edge of the primary tilling element disc 5. The disc 5 is inclined to the direction of forward movement and is caused to rotate by ::
the action of being dragged through and over the ground so as to cause lifting and turning of the soil as :~
diagrammatically illustrated. While, normally, the disc 5 will be arranged with its plane substantially upright :
relative to the ground, in some cases, the operator may wish to have it rearwardly tilted, relative to the direction of movement, with the amount of tiling, in an extreme case, possibly being as much as 25 to 30. The :`
United Kingdom Patent Office~ SUBST~TUTE SHEET
PCT Interna.tional Application . , ' .: . ' . . . . . .. . . .. . . .
2~.07125 PCTJ6B q 2 / O 0 4 2 2 il~ FFRRlla~V 19~3 benefit of the present invention comes from the provision of the secondary tilling element 6 which is received within the concave primary tilling member and is also caused to rotate by reaction to forward movement of the plough. Soil which has initially been started to turn by the action of the primary diæc 5 is further turned by the action of the secondary tilling member 6 with the combination effect of the two discs assisting in providing better coverage of the top soil by soil brought up from beneath, during use of the plough. As illustrated in Figure 1, the plough is arranged for right-hand ploughing, that is turning the furrow to the right as the plough is drawn forwardly through the ground.
Where left-hand ploughing is required, the angle of inclination of the beam 1 to the direction of movement will be reversed and the tilling apparatus 4 will be rotated about the pivot 8 so as to be suitably disposed after that - ;
movement of the beam 1 to provide left-hand ploughing.
Figure 2 diagrammatically illustrates the arrangement of two discs as tilling members as shown in Figure 1. Figure 3 is a similar view but shows the use of an inversion wheel instead of the secondary tilling member, while Figure 4 shows the use of a flat skimmer.
Figures 5, 6 and 7 are similar to Figures 2, 3 and 4 but in each case using an inversion wheel 16 as the primary tilling member with, in Figure 5, there being used as secondary tilling member an inversion wheel 14, in rUnited Kingdon~ Patent~i~ SUBSTIll~ S~
l PCT Internationa~ App.lcatlon . - ., , . ,.,. . .; ., i , , . . , ,.. ; .. ~ .. ; . 1 . ....... . . .
. - . -: . .. - ., . ~
W O 92/17051 P(~r/GB92/00422 210712~ ;'3 Figure 6 a plough disc 6 and in Figure 7 a skimmer 18.
Figures 8 to 13 are top diagrammatic views of the apparatus shown in Figures 2 to 7 with Figure 8 having two discs 5 and 6, Figure 9 having a disc 5 and inversion wheel 14, Figure 10 having a disc 5 and a skimmer 18, Figure 11 having inversion wheels 16 and 14, Figure 12 having an inversion wheel 16 and disc 6 and Figure 13 having an inversion wheel 16 and a skimmer 18.
As will be appreciated from Figure 1, the plough comprises tilling apparatus each having primary and secondary tilling members arranged in a generally upstanding attitude with respect to the ground. The ;
staggered formation permits progressive ploughing of a series of parallel furrows. -The preferred embodiment of the equipment comprises a large primary tilling member 5 or 16 provided with a statio~ary or rotationary axle protruding from its axis on its concave side. From this axle is supported the secondary tilling member comprising a disc 6,~an inversion wheel 14 or a skimmer 18. All the discs and soil inversion wheels rotate and are land-driven whilst being held in a near vertical attitude with respect to the ground. The ~
smaller tilling member 6 or 14 is angled to towards to the ~-front of the larger tilling member 5 or 16 and preferably is supported at a different height. :: .
As the plough frame is pulled behind a tractor or the like, the large tilling element engages the ground, rotating and penetrating to the required depth. At this depth the small tilling member is positioned so as to rotate and cut a sliver of soil, plus the stubble and straw off the surface of the ground, manoeuvreing it into the open furrow formed by the preceding tilling apparatus. The clean soil from the underside of the sliver is then rolled over by the larger tilling member, covering the sliver of soil, stubble and straw whilst rotating. Generally, the large tilling element is rotatable by the reaction of being . .,, ~, .
WO92/17051 ~iJi3~ ~r3~3 PCT/GB92/00422 2 1 0 7 ~ 2 ~
- 7 - ~` ~
drawn across and through the ground with, necessarily, assuming that it is not additionally mechanically driven, the angle of inclination of the tilling element to the -direction of travel being not so steep that rotation will be inhibited. The secondary tilling member, because it is more steeply inclined to the direction of movement of the first tilling member, can well be in a situation that it would be, in essence, stalled as compared with the direction of movement over the ground, such that a disc at that angle to the ground would not be rotated. However, the secondary tilling member is engaged by soil which has already been moved by the primary tilling member and thus the drive to the secondary tilling member is by the action -of movement of the secondary tilling member relative to the soil which is already being moved by the primary tilling member and this will be adequate to rotate the secondary -~
tilling member. However, as indicated previously, it is also possible to drive the secondary tilling member ~mechanically, for example simply by;providing a mechanical connection from the primary tilling member.
As compared with a conventional plough, it has been found that this structure provides, in a simple and relatively inexpensive arrangement, an aid to ground preparation having the advantages of providing more efficient shattering of the soil and better total stubble and straw coverage by the soil with good plough working speed and a predictable ploughing action.
",. ' ' ' .
,.'' .~
`::. . . ;: ~ ~ ffl ~ ~ ~
l2 FEBRUARY l993 A preferred aspect of the invention provides a plough comprising a frame and, supported by said frame, tilling apparatus comprising a primary concave tilling member rotatable by reaction with the ground to be tilled and inclined to the direction of forward movement to provide a soil tilling and ploughing action and a secondary, smaller, rotary member mounted within the concavity of said primary tillinq member and inclined with ~ ;
respect to the primary tilling member characterised in that the secondary, smaller, rotary member is a tilling member more greatly inclined to the direction of forward movement in order to displace a sliver of soil together with stubble ~-and straw off the surface of the ground, the primary tilling member being operative in use of the plough to roll the clean soil from the underside of the sliver over to cover the sliver of soil, stubble and straw initially displaced, the secondary tilling member being rotatable about its axis.
While the primary tilling member may be a conventional concave plough disc, it is preferred that it be a soil inversion wheel comprising a substantially planar diSC having a frusto-conical flanged rim as being more efficient than the conventional disc. Similarly, the secondary tilling member may be a conventional plough disc shaped member or an inversion wheel and in some cases may -simply comprise a flat disc or skimmer. While the tilling members need not necessarily be comprised by a solid disc ~-. .. ..
~or member but may have a perforated or otherwise partially -open centre and/or have a shaped or scalloped cutting edge, this is particularly true of the secondary tilling member which may be in the form of a spoked wheel or perforated disc having a cutting perimeter as long as it has a peripheral edge which is capable of moving soil which ~ --primarily will be some of the soil displaced by the primary tilling member but which in some cases may be surface soil which has not been shifted prior to engagement with the - I United Kingdom Patent Offlce I SUBSTITU~E SHET
~ PCr International App'ication - .
PCT~6B 9 2 / O O 4 2 2 '" ~
21071h~ il2 FE8~ARY lg93 secondary tilling member.
By having the secondary tilling member freely rotatable relative to the primary tilling member, during ploughing, as will be described, both tilling members will be independently rotated due to the reaction of the forward travel of the discs over the ground being cultivated.
However, it is possible for one or both of the tilling members to be mechanically driven and one particular possibility is to have the secondary tilling member mechanically driven, for example by a universal jointed linkage, by the larger disc so as to be rotatable thereby.
Preferably, a point is provided to penetrate the ground in front of the primary tilling member and a land slide may be provided extending rearwardly from the point beneath the tilling member to assist in maintaining directional stability of the plough, both directionally and assisting in maintaining a consistent depth.
The invention will be further described, by way of example, with reference to the accompanying drawings, in which:-Figure 1 is a diagrammatic plan view of a portionof a plough embodying the present invention: -Figures 2, 3 and 4 are each diagrammaticperspective views of tilling apparatus having a plough disc as primary tilling element, the secondary tilling member shown in Figure-2 being a disc, that shown in Figure 3 being an inversion wheel and that shown in Figure 4-being a skimmer;
Figures 5, 6 and 7 are views similar to Figure 2 but each having an inversion wheel as primary tilling element and with the secondary tilling elements in Figures 5, 6 and 7, respectively being an inversion wheel, a disc and a skimmer; and Figures 8 to 13 are top views of the apparatus shown in Figures 2 to 7, respectively.
.
¦ United Kingdom Patent O~ SH -ET
I PCT International Applicatjon l SUBSTITUT L
, , .. , .. . ,;." , .
Pl~/6B~ 2 ,' 0 04 22 210 ~12~
- i1? FEBRIlaa~ l~g3 Referring to Figure 1, there is shown therein in top plan view part of a plough having a beam 1 from which are trailed various plough units by means of pivot connections 2. Trailing from each pivot connection 2 is a frame member 3, only part of each of which is shown in Figure 1. This frame member extends rearwardly over the .;
top of the tilling apparatus 4 having downwardly extending therefrom forwardly of the tilling apparatus an upright member 11 and having near its rear end a downwardly depending pivot support 8.
A hollow shaft 7 extends from pivot support 8 and rotatably carries a primary tilling element shown as a plough disc 5. Rotatably supported by means extending within the sha~t 7 is a smaller tilling member in the form of a plough disc 6. Supported by the member 11 is a plough point 10 extending forwardly of the leading edge of the . . ~
tilling members and extending rearwardly from the point 10 :
beneath the tilling members is a landslide 9. The pivot .~
support 8, instead of being supported solely from above, :.
can be supported both from above and below with the lower connection extending from near the rear end of the landslide 9.
During use of the plough shown in Figure 1, it :.
will be drawn forward over the soil in the direction of the :
arrow. The point 10 penetrates the soil so as to assist ~:.
later penetration by the leading edge of the primary tilling element disc 5. The disc 5 is inclined to the direction of forward movement and is caused to rotate by ::
the action of being dragged through and over the ground so as to cause lifting and turning of the soil as :~
diagrammatically illustrated. While, normally, the disc 5 will be arranged with its plane substantially upright :
relative to the ground, in some cases, the operator may wish to have it rearwardly tilted, relative to the direction of movement, with the amount of tiling, in an extreme case, possibly being as much as 25 to 30. The :`
United Kingdom Patent Office~ SUBST~TUTE SHEET
PCT Interna.tional Application . , ' .: . ' . . . . . .. . . .. . . .
2~.07125 PCTJ6B q 2 / O 0 4 2 2 il~ FFRRlla~V 19~3 benefit of the present invention comes from the provision of the secondary tilling element 6 which is received within the concave primary tilling member and is also caused to rotate by reaction to forward movement of the plough. Soil which has initially been started to turn by the action of the primary diæc 5 is further turned by the action of the secondary tilling member 6 with the combination effect of the two discs assisting in providing better coverage of the top soil by soil brought up from beneath, during use of the plough. As illustrated in Figure 1, the plough is arranged for right-hand ploughing, that is turning the furrow to the right as the plough is drawn forwardly through the ground.
Where left-hand ploughing is required, the angle of inclination of the beam 1 to the direction of movement will be reversed and the tilling apparatus 4 will be rotated about the pivot 8 so as to be suitably disposed after that - ;
movement of the beam 1 to provide left-hand ploughing.
Figure 2 diagrammatically illustrates the arrangement of two discs as tilling members as shown in Figure 1. Figure 3 is a similar view but shows the use of an inversion wheel instead of the secondary tilling member, while Figure 4 shows the use of a flat skimmer.
Figures 5, 6 and 7 are similar to Figures 2, 3 and 4 but in each case using an inversion wheel 16 as the primary tilling member with, in Figure 5, there being used as secondary tilling member an inversion wheel 14, in rUnited Kingdon~ Patent~i~ SUBSTIll~ S~
l PCT Internationa~ App.lcatlon . - ., , . ,.,. . .; ., i , , . . , ,.. ; .. ~ .. ; . 1 . ....... . . .
. - . -: . .. - ., . ~
W O 92/17051 P(~r/GB92/00422 210712~ ;'3 Figure 6 a plough disc 6 and in Figure 7 a skimmer 18.
Figures 8 to 13 are top diagrammatic views of the apparatus shown in Figures 2 to 7 with Figure 8 having two discs 5 and 6, Figure 9 having a disc 5 and inversion wheel 14, Figure 10 having a disc 5 and a skimmer 18, Figure 11 having inversion wheels 16 and 14, Figure 12 having an inversion wheel 16 and disc 6 and Figure 13 having an inversion wheel 16 and a skimmer 18.
As will be appreciated from Figure 1, the plough comprises tilling apparatus each having primary and secondary tilling members arranged in a generally upstanding attitude with respect to the ground. The ;
staggered formation permits progressive ploughing of a series of parallel furrows. -The preferred embodiment of the equipment comprises a large primary tilling member 5 or 16 provided with a statio~ary or rotationary axle protruding from its axis on its concave side. From this axle is supported the secondary tilling member comprising a disc 6,~an inversion wheel 14 or a skimmer 18. All the discs and soil inversion wheels rotate and are land-driven whilst being held in a near vertical attitude with respect to the ground. The ~
smaller tilling member 6 or 14 is angled to towards to the ~-front of the larger tilling member 5 or 16 and preferably is supported at a different height. :: .
As the plough frame is pulled behind a tractor or the like, the large tilling element engages the ground, rotating and penetrating to the required depth. At this depth the small tilling member is positioned so as to rotate and cut a sliver of soil, plus the stubble and straw off the surface of the ground, manoeuvreing it into the open furrow formed by the preceding tilling apparatus. The clean soil from the underside of the sliver is then rolled over by the larger tilling member, covering the sliver of soil, stubble and straw whilst rotating. Generally, the large tilling element is rotatable by the reaction of being . .,, ~, .
WO92/17051 ~iJi3~ ~r3~3 PCT/GB92/00422 2 1 0 7 ~ 2 ~
- 7 - ~` ~
drawn across and through the ground with, necessarily, assuming that it is not additionally mechanically driven, the angle of inclination of the tilling element to the -direction of travel being not so steep that rotation will be inhibited. The secondary tilling member, because it is more steeply inclined to the direction of movement of the first tilling member, can well be in a situation that it would be, in essence, stalled as compared with the direction of movement over the ground, such that a disc at that angle to the ground would not be rotated. However, the secondary tilling member is engaged by soil which has already been moved by the primary tilling member and thus the drive to the secondary tilling member is by the action -of movement of the secondary tilling member relative to the soil which is already being moved by the primary tilling member and this will be adequate to rotate the secondary -~
tilling member. However, as indicated previously, it is also possible to drive the secondary tilling member ~mechanically, for example simply by;providing a mechanical connection from the primary tilling member.
As compared with a conventional plough, it has been found that this structure provides, in a simple and relatively inexpensive arrangement, an aid to ground preparation having the advantages of providing more efficient shattering of the soil and better total stubble and straw coverage by the soil with good plough working speed and a predictable ploughing action.
",. ' ' ' .
,.'' .~
`::. . . ;: ~ ~ ffl ~ ~ ~
Claims (10)
1. A plough comprising a frame and, supported by said frame, tilling apparatus comprising a primary concave tilling member rotatable by reaction with the ground to be tilled and inclined to the direction of forward movement to provide a soil tilling and ploughing action and a secondary, smaller, rotary member mounted within the concavity of said primary tilling member and inclined with respect to the primary tilling member characterised in that the secondary, smaller, rotary member is a tilling member more greatly inclined to the direction of forward movement in order to displace a sliver of soil together with stubble and straw off the surface of the ground, the primary tilling member being operative in use of the plough to roll the clean soil from the underside of the sliver over to cover the sliver of soil, stubble and straw initially displaced, the secondary tilling member being rotatable about its axis.
2. A plough according to claim 1, wherein the tilling apparatus is pivotally carried by said frame so that its angle of inclination is variable.
3. A plough according to claim 1 or 2, wherein a point depends from the frame to penetrate the ground in front of the forward edge of the primary tilling member.
4. A plough according to claim 3, wherein a land slide extends rearwardly from the point beneath and to a location behind the tilling apparatus.
5. A plough according to any preceding claim, wherein the primary tilling member is a concave plough disc.
6. A plough according to any one of claims 1 to 4, wherein the primary tilling member is a soil inversion wheel comprising a substantially planar central portion and a flanged rim portion.
7. A plough according to any preceding claim, wherein the secondary tilling member is concave.
8. A plough according to claim 7, wherein the secondary tilling member is in the form of a concave plough disc.
9. A plough according to claim 7, wherein the secondary tilling member is a soil inversion wheel.
10. A plough according to any one of claims 1 to 6, wherein the secondary tilling member is a planar disc, skimmer or the like.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9107331.2 | 1991-04-05 | ||
| GB919107331A GB9107331D0 (en) | 1991-04-05 | 1991-04-05 | Accessory to a plough disc or soil inversion wheel |
| GB9119145A GB2254232A (en) | 1991-04-05 | 1991-09-06 | Improved tilling apparatus. |
| GB9119145.2 | 1991-09-06 | ||
| PCT/GB1992/000422 WO1992017051A1 (en) | 1991-04-05 | 1992-03-10 | Improved tilling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2107125A1 true CA2107125A1 (en) | 1992-10-06 |
Family
ID=26298703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002107125A Abandoned CA2107125A1 (en) | 1991-04-05 | 1992-03-10 | Improved tilling apparatus |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0571504A1 (en) |
| JP (1) | JPH06505869A (en) |
| AU (1) | AU1334892A (en) |
| CA (1) | CA2107125A1 (en) |
| FI (1) | FI934287A (en) |
| IE (1) | IE921075A1 (en) |
| PT (1) | PT100337A (en) |
| WO (1) | WO1992017051A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5619939A (en) * | 1995-04-28 | 1997-04-15 | Herman; Alvin | Disc opener |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994005144A1 (en) * | 1992-09-07 | 1994-03-17 | Kenneth Frederick Taylor | Improvements to ploughs, arrangements and implements therefor and methods of cultivation using same |
| GB2272352A (en) * | 1992-11-17 | 1994-05-18 | Topham Peter D T | Reversible plough |
| US10827662B2 (en) | 2018-04-05 | 2020-11-10 | Deere & Company | Disk blade with sharpened edge and relief portion and method of manufacturing the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1391593A (en) * | 1920-10-23 | 1921-09-20 | Sweeting Claude Clarence | Plow |
| US1750887A (en) * | 1928-04-03 | 1930-03-18 | Hall Guy Herring | Rotary tiller attachment for disk plows |
| US2230750A (en) * | 1939-06-03 | 1941-02-04 | Brice H Lantz | Farming implement |
| DE1003485B (en) * | 1954-01-26 | 1957-02-28 | Karl Weinert | plow |
| US2935141A (en) * | 1956-08-08 | 1960-05-03 | Deere & Co | Cover disk for plows |
-
1992
- 1992-03-10 AU AU13348/92A patent/AU1334892A/en not_active Abandoned
- 1992-03-10 WO PCT/GB1992/000422 patent/WO1992017051A1/en not_active Application Discontinuation
- 1992-03-10 CA CA002107125A patent/CA2107125A1/en not_active Abandoned
- 1992-03-10 JP JP4505583A patent/JPH06505869A/en active Pending
- 1992-03-10 EP EP19920905920 patent/EP0571504A1/en not_active Withdrawn
- 1992-04-02 PT PT10033792A patent/PT100337A/en not_active Application Discontinuation
- 1992-04-03 IE IE921075A patent/IE921075A1/en unknown
-
1993
- 1993-09-30 FI FI934287A patent/FI934287A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5619939A (en) * | 1995-04-28 | 1997-04-15 | Herman; Alvin | Disc opener |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1334892A (en) | 1992-11-02 |
| WO1992017051A1 (en) | 1992-10-15 |
| FI934287A0 (en) | 1993-09-30 |
| EP0571504A1 (en) | 1993-12-01 |
| JPH06505869A (en) | 1994-07-07 |
| FI934287A (en) | 1993-09-30 |
| IE921075A1 (en) | 1992-10-07 |
| PT100337A (en) | 1994-04-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 19950911 |