AU2008258168A1 - Subsoil Tool - Google Patents

Subsoil Tool Download PDF

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Publication number
AU2008258168A1
AU2008258168A1 AU2008258168A AU2008258168A AU2008258168A1 AU 2008258168 A1 AU2008258168 A1 AU 2008258168A1 AU 2008258168 A AU2008258168 A AU 2008258168A AU 2008258168 A AU2008258168 A AU 2008258168A AU 2008258168 A1 AU2008258168 A1 AU 2008258168A1
Authority
AU
Australia
Prior art keywords
foot
subsoil
implement according
shank
means
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
Application number
AU2008258168A
Inventor
John Rasic
Randall Tomich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOILWORKS AUSTRALIA Pty Ltd
Original Assignee
SOILWORKS AUSTRALIA Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to AUPR007801 priority Critical
Priority to AUPR7801 priority
Priority to AU2002331445A priority patent/AU2002331445A1/en
Application filed by SOILWORKS AUSTRALIA Pty Ltd filed Critical SOILWORKS AUSTRALIA Pty Ltd
Publication of AU2008258168A1 publication Critical patent/AU2008258168A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/102Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters
    • E02F5/103Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters with oscillating or vibrating digging tools
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B13/00Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation
    • A01B13/08Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation for working subsoil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/027Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with coulters, ploughs, scraper plates, or the like
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/30Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/32Rippers
    • E02F5/326Rippers oscillating or vibrating
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808Teeth
    • E02F9/2816Mountings therefor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808Teeth
    • E02F9/2816Mountings therefor
    • E02F9/2833Retaining means, e.g. pins

Description

17/12 2008 WED 15:57 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0035/077 00 Subsoil Tool Field of The Invention The present invention relates generally to agricultural earth working implements, and, more specifically, to a strip tillage implement used at depths of up to 1 metre and more 00 \C 5 in depth (under optimum soil conditions).

00 V' Background Of The Invention 00 Subsoil earth working is generally undertaken to improve the soil characteristics so far as they relate to soil physics. In soils subsoil equipment is brought in to allow for fragmentation of soils to a required depth in which crop cultivation may occur.

Typically subsoil equipment uses a tyne that penetrates the soil and which is pulled through the soil. An unlooked for and unwelcome result of this activity can be that the process adversely affects on the soil porosity, permeability, drainage, aeration and heat transmission. Because of these and other factors root growth in degraded soils is inhibited and consequently crop growth and crop yields are also adversely affected.

The use of subsoil tools, therefore, to fragment the soil allows for faster and more extensive root development is generally desirable. Fragmented soils may also have increased water holding capacity and water extractability thereby providing a resistance to drought conditions. Further, working the soil can make more uniform soil profiles that are highly differentiated and make the soil more trafficable and workable.

However, it has been noticed that many currently available soil-working tools cause soil degradation. it must also be observed that traditional deep ripping implements are designed for use in civil engineering and mining applications. It is an object of the present invention to provide an alternative to existing tillage implements.

Summary Of The Invention Therefore, according to a first aspect of the invention, there is provided a subsoil implement adapted for connection to a support vehicle, said implement having a shank, said shank having at an upper end thereof means for connection to a vehicle and at a COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15!57 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 1036/077 00 2 lower end thereof said shank being connected to a foot, said foot having a pivotal connection to the shank and the implement further including means to drive the foot in

O

oscillatory motion about the pivotal connection.

Preferably, the shank includes on its leading edge a replaceable wear plate.

Preferably, the means to drive the foot in oscillatory motion about the pivotal connection 00 \C takes the form of a hydraulic or pneumatic connection. In a preferred embodiment of 00 the invention the hydraulic ram connection is attached to a rear of the foot and is aligned, in general terms, with the shank, operating the oscillation by means of 00 reciprocating motion. In one form of the invention, the subsoil tool is designed to have an adjustable operation between 0.5-10 Hertz and at a depth below the soil surface of up to 1.3m.

The subsoil implement of the present invention is designed to be used in a wide range of soils having natural and/or man made impeding layers, contrasting layers or pans that restrict root and water penetration at a depth of more than one metre. The effect of soil tillage by the subsoil implement of the invention is to encourage sustainable production through the combined effects of faster water infiltration and permeability, strong root growth, increased water and nutrient availability, improved drainage and aeration, leaching of salts and toxins and lower soil strength.

Preferably, the subsoil implement of the invention has laterally extending wings attached thereto, the wings serving to increase the width of action of the tool and thereby to increase the amount of fragmentation of the soil by the tool.

In various embodiments of the invention, the wings may be adjustable, in both the horizontal and vertical planes preferably in the range between 5' and Preferably, the subsoil tool of the invention is attached to a conventionally driven tractor by means of a quadrilateral parallelogram frame.

Description Of Drawings The above and other objects, features, and advantages of the present invention will be apparent from the following detailed description of a preferred embodiment in conjunction with the accompanying drawings. In the drawings: COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15:58 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0037/077 00 3 Figure 1 illustrates in lower perspective view a subsoil implement in accordance with

L

C the present invention; and

O

Figure 2 illustrates the subsoil implement of figure 1 in upper perspective view; and Figure 3 illustrates a subsoil tool in accordance with a second embodiment of the invention.

00 SDescription Of The Preferred Embodiment 00 00 Shown in the drawings is a subsoil tool 10 in accordance with the invention. The tool is operatively attached to a vehicle in the form of a tractor (not shown) and is connected Cl by a parallelogram linkage indicated in dotted outline as 14. The parallelogram linkage is constructed and operates in a known manner and will not be described herein in any detail. The subsoil tool 10 is adapted for operation at depths of up to 1.2m below a soil surface.

The subsoil tool 10 includes a shank 16 attached at its upper end to the parallelogram linkage 14 and at its lower end the shank 16 is connected to an oscillating foot arrangement 18.

The shank 16 is a multi part construction. Located forwardly of the shank is a wear plate 20 secured to the shank by a wear plate bracket 22 found towards an upper end of the wear plate 20. The wear plate 20 sits forwardly of the shank 16 and protects the shank 16 from the ground through which the tool 10 is moved. The wear plate 20 has a slightly curved front edge.

Behind the wear plate 20 and protected by the wear plate 20 is a hydraulic ram 24. The ram 24 is aligned generally with the shank 16. At its lower end the ram 24 is attached to the foot 18. At its upper end the ram 24 fits into a housing 26. The housing 26 is a three -sided open channel and the ram 24 is secured in the housing 26 at its upper end by a bolt 28 passing through a linkage connector 30 on the ram 24.

Towards the rear of the ram adjacent an upper end thereof is a sensor support housing 32. The sensor support housing 32 serves to hold a sensor (not shown) able to detect and control the operation of the ram.

COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15:58 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0038/077 00 4 The oscillatory foot 18 consists of a pair of spaced foot plates 38, a respective plate s foot 38 forming each side of the foot 18. The plates are maintained in a spaced condition at the rear of the foot 18 by a spacer bar 40 resting therebetween. The wear Splate 20 and ram 24 are both received in the space between the two foot plates 38. At the leading front edge of the foot 18 the spaced foot plates are connected and covered by a tyne end cap 42 secured to the foot 18 by a pin 44. The tyne end cap 42 is a 00 pointed digging tool that can be driven through ground in which the tool 10 operates.

NO

00 At its lower end an extension rod 34 of the ram 24 is connected to the oscillatory foot 18 by means of a connector secured to a bolt 36. The position of the bolt 36 is 00 10 maintained by means of an interlocking wedge arrangement with a threaded bolt having an outer wedge 45 on the outer side of each plate 38, Each wedge 45 is locked into a Ccorrespondingly shaped seat 46 on the outer sides of the plates 38. The wedge arrangement thus ensures that the integrity of the connection of the ram 24 to the oscillatory foot 18 is not compromised during use of the tool A similar wedge arrangement is used to secure the shank 16 to the foot 18, with a pin 48 being passing through the shank 16 and being secured in the foot plates 38 by means of wedges 50 on either outer side of the foot plates 38, the wedges 50 being locked into position in corresponding seats 52 also on the outer sides of each foot plate 38.

The foot 18 is freely rotatable about the pin 48 in response to extension of the ram 24.

Thus as the ram 24 is reciprocated the foot 18 oscillates in a range of The ram 24 includes control equipment that allows the amplitude and frequency of the oscillation to be varied according to any preferred conditions for any particular soil type.

At the rear of the foot 18 on either side of the foot is a ripper 54 in the form of a laterally extending wing. The rippers 54 are, in the illustration, each inclined downwardly at approximately 15' to the horizontal. The wings 54 serve to increase the width and amount of fragmentation mixing during operation of the foot.

In alternative forms of the invention the wings may be attached to the foot 18 by means of a wing assembly secured to the foot 18 by means of a pin arrangement similar to that used fore the tyne end cap 42. In such an arrangement the tool can be provided with a number of interchangeable wing assemblies that have differing degrees of COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15:58 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0039/077 0 inclination, thereby providing an operator with the ability to select the preferred wing configuration to suit the soil conditions.

SIn use, the subsoil tool is connected to the linkage 14 and the linkage 14 is, in turn, mounted to a tractor in a known manner. The shank 16 is immersed in the soil to a predetermined depth using hydraulic control height adjustment.

00 INC The subsoil implement of the invention acts as an oscillating foot subsoil tool with 00 amplitude ranging from 0.5-8 Hertz and may penetrate up to 1.2m in depth as the V) oscillating foot 18 moves forward. During forward movement of the foot 18 operation of 00 the ram 24 causes oscillation of the foot. This oscillating motion causes the soil through which the foot is moved to be lifted and fragmented. Oscillation of the foot by the hydraulic ram 24 uses oil flows of up to 150 L/min generating up to 100 bar pressure.

The optimum amount of soil fragmentation can be achieved by adjustment of the position of the wings 54. It has been found that outside of the favourable range adverse soil effect can occur such as smearing, compaction, pulverisation or poor mixing. For any given soil conditions the optimum operating conditions can be determined by surveying the land under consideration. The foot 18 moves forward using a programmable control module with an adjustable wave pattern, typically a tooth shape.

The upstroke and downstroke speeds are independently controllable as they are drive through the electronic controls and sensors of the ram.

The optimum sped of the tool over ground may be in the region of 3.5-6.5Km/h, depending on soil type and conditions.

It has been observed by the inventors that for any subsoil depth there is a critical working depth that is associated with the soil condition, for example, approximately half the designed working depth of the tool 10. Thus, when the tool 10 penetrates deeper than the critical working depth the tool may cause adverse effects rather than the desired soil fragmentation.

By selective adjustment of the depth of the oscillating foot 18 maximum soil fragmentation may be achievable in some cases with a single pass of the tool through the soil.

COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15:58 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA E040/077 00 6 Shown in figure 3 is a second embodiment in the form of a subsoil tool 100. Many of ri the features of the subsoil tool 100 are similar to that described for the subsoil tool and like numerals are used to describe like parts.

The subsoil tool 100 includes a shank 16 attached at its upper end to the parallelogram linkage 14 (not shown) and at its lower end the shank 16 is connected to an oscillating foot arrangement 102.

00

NO

00The shank 16 is a multi part construction. Located forwardly of the shank is a wear t) plate 104 secured to the shank 16. The wear plate 104 has a slightly curved front 00 edge.

10 Behind the wear plate 104 and protected by the wear plate 104 is a hydraulic ram 24.

The ram 24 is aligned generally with the shank 16. At its lower end the ram 24 is attached to the foot 102. At its upper end the ram 24 fits into a housing 26 not shown) as described in connection with the subsoil tool In the case of the subsoil tool 100 shown herein the ram 24 may actuated in response to a sensor, or, alternatively the ram 24 may be controlled by a bloc which defines the limit of travel of the ram in any direction.

The oscillatory foot 102 consists of a pair of spaced footplates 106, a respective plate foot 106 forming each side of the foot 102. The ram 24 is received in the space between the two footplates 106. However, compared with the footplates 38, in this case the footplates 106 do not extend forwardly of a pivotal connection point 108 and have a rounded forward profile 110. At the connection point 106 the shank 16 is recessed to accommodate the plates 106 and edges of the wear plate 103 have curves portions cut therein to allow clear rotation of the footplates 106 around the connection point without the forward edge 110 impinging on the wear plate 103. The leading front edge of the tool 100 is covered by a tyne end cap 42 used as previously described.

The ram 24, and shank 16 are connected to the oscillatory foot 102 in a similar manner to that described for the subsoil tool The foot 102 oscillates in a range of 5'-50 The ram 24 includes control equipment that allows the amplitude and frequency of the oscillation to be varied according to any preferred conditions for any particular soil type.

COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15:59 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0041/077 00 7 0 At the rear of the foot 102 on either side of the foot is a ripper 54 in the form of a Nc laterally extending wing. The rippers 54 are, in the illustration, each inclined Sdownwardly at approximately 15' to the horizontal. The wings 54, as described above, serve to increase the width and amount of fragmentation mixing during operation of the foot.

The subsoil tool 100 is used in the same manner as the subsoil tool 00

NO

Use of the tool of the invention has been found to advantageously affect the macro 00 t porosity of the soils under treatment and to increase the infiltration, permeability, Q0 drainage, aeration and heat transmission of the soil.

O0 S 1 0 The invention has been described by way of example. The examples are not, however, to be taken as limiting the scope of the invention in any way. Modifications and variations of the invention such as would be apparent to a skilled addressee are deemed to be within the scope of the invention.

COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17

Claims (18)

1. A subsoil implement adapted for connection to a support vehicle, said implement having a shank, said shank having at an upper end thereof means for connection to a vehicle and at a lower end thereof said shank being connected to a foot, said foot having a pivotal connection to the shank and the 00 k\ implement further including means to drive the foot in oscillatory motion about 00 the pivotal connection. 00
2. A subsoil implement according to claim 1, wherein, the shank includes on its leading edge a replaceable wear plate.
3. A subsoil implement according to claim 2, wherein, the replaceable wear plate has a slightly curved front edge.
4. A subsoil implement according to claim 1, in which the means to drive the foot in oscillatory motion about the pivotal connection takes the form of a hydraulic or pneumatic connection.
5. A subsoil implement according to claim 4, in which the hydraulic ram connection is attached to a rear of the foot and is aligned, in general terms, with the shank, operating the oscillation by means of reciprocating motion.
6. A subsoil implement according to claim 5, in which the hydraulic ram is attached at its upper end to a housing, said housing being supported on the means for connection to a vehicle, said housing also serving to hold therein a sensor adapted to detect and control the operation of the ram.
7. A subsoil implement according to claim 1, in which the foot consists of a pair of spaced foot plates, a respective footplate forming each side of the foot and a spacer bar resting between the foot plates and wherein the shank is received in the space between the foot plates.
8. A subsoil implement according to claim 7, in which the spaced foot plates are connected at a front edge and covered by a tyne end cap, said tyne end cap serving as a digging tool that can be driven through ground in use. COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15:59 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0043/077 00 9
9. A subsoil implement according to claim 7, in which the spaced footplates are C r connected at the base of the shank.
U A subsoil implement according to any one of claims 8 or 9, in which a hydraulic actuator drives the foot in oscillatory motion about the pivotal connection, said actuator being connected to at its lower end to the oscillatory foot by means of a connector secured to a bolt, the position of the bolt being maintained by means 00 INO of a first interlocking wedge arrangement with a threaded bolt having an outer 00 wedge on the outer side of each foot plate and each wedge being locked into a l r correspondingly shaped seat on outer sides of the foot plates. 00
11. A subsoil implement according to any one of the preceding claims, wherein the ri shank is secured to the foot by means of a pin being passing through the shank and being secured in the foot plates by means of a second interlocking wedge arrangement with a pin passing through the shank, said pin being secured to the foot plates by means of wedges on outer ends of the pin and each wedge being locked into a correspondingly shaped seat on outer sides of the foot plates.
12. A subsoil implement according to any one of the preceding claims, wherein the subsoil implement is designed to have an adjustable operation between 0.5-10 Hertz
13. A subsoil implement according to any one of the preceding claims, wherein the subsoil implement is designed to operate at a depth below the soil surface of up to 1.3m.
14. A subsoil implement according to any one of the preceding claims, further including laterally extending wings attached to the foot, the laterally extending wings serving to increase the width of action of the implement and thereby to increase the amount of fragmentation of the soil by the tool.
A subsoil implement according to claim 14, wherein the wings are adjustable, in both the horizontal and vertical planes.
16. A subsoil implement according to claim 14, wherein the wings are adjustable, in both the horizontal and vertical planes in the range between 5' and COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 15:59 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA E044/077 00
17. A subsoil implement according to any one of the preceding claims, wherein the c subsoil implement of the invention is attached to a conventionally driven tractor U by means of a parallelogram frame.
18. A subsoil implement according substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings. 00 00 Soilworks Australia Pty Ltd SBy their Patent Attorneys Vr Lesicar Perrin 00 COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 16:00 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0049/077 00 8 0 SThe claims defining the invention are as follows: U S1. A subsoil implement adapted for connection to a support vehicle, said implement having a shank, said shank having at an upper end thereof means for connection to a vehicle and at a lower end thereof said shank being connected to a foot, said foot having a pivotal connection to the shank and the 00 \O implement further including means to drive the foot in oscillatory motion about the pivotal connection. 00 00 2. A subsoil implement according to claim 1, wherein, the shank includes on its S, leading edge a replaceable wear plate. 3. A subsoil implement according to claim 2, wherein, the replaceable wear plate has a slightly curved front edge. 4. A subsoil implement according to claim 1, in which the means to drive the foot in oscillatory motion about the pivotal connection takes the form of a hydraulic or pneumatic connection. 5. A subsoil implement according to claim 4, in which the hydraulic ram connection is attached to a rear of the foot and is aligned, in general terms, with the shank, operating the oscillation by means of reciprocating motion. 6. A subsoil implement according to claim 5, in which the hydraulic ram is attached at its upper end to a housing, said housing being supported on the means for connection to a vehicle, said housing also serving to hold therein a sensor adapted to detect and control the operation of the ram. 7. A subsoil implement according to claim 1, in which the foot consists of a pair of spaced foot plates, a respective footplate forming each side of the foot and a spacer bar resting between the foot plates and wherein the shank is received in the space between the foot plates. 8. A subsoil implement according to claim 7, in which the spaced foot plates are connected at a front edge and covered by a tyne end cap, said tyne end cap serving as a digging tool that can be driven through ground in use. COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 16 00 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0050/077 00 9 9. A subsoil implement according to claim 7, in which the spaced footplates are Cl connected at the base of the shank. O C) 010. A subsoil implement according to any one of claims 8 or 9, in which a hydraulic actuator drives the foot in oscillatory motion about the pivotal connection, said actuator being connected to at its lower end to the oscillatory foot by means of a connector secured to a bolt, the position of the bolt being maintained by means 00 00 of a first interlocking wedge arrangement with a threaded bolt having an outer 0wedge on the outer side of each foot plate and each wedge being locked into a 00 tf correspondingly shaped seat on outer sides of the foot plates. C 00 11. A subsoil implement according to any one of the preceding claims, wherein the Cl shank is secured to the foot by means of a pin being passing through the shank and being secured in the foot plates by means of a second interlocking wedge arrangement with a pin passing through the shank, said pin being secured to the foot plates by means of wedges on outer ends of the pin and each wedge being locked into a correspondingly shaped seat on outer sides of the foot plates. 12. A subsoil implement according to any one of the preceding claims, wherein the subsoil implement is designed to have an adjustable operation between 0.5-10 Hertz 13. A subsoil implement according to any one of the preceding claims, wherein the subsoil implement is designed to operate at a depth below the soil surface of up to 1,3m. 14. A subsoil implement according to any one of the preceding claims, further including laterally extending wings attached to the foot, the laterally extending wings serving to increase the width of action of the implement and thereby to increase the amount of fragmentation of the soil by the tool. A subsoil implement according to claim 14, wherein the wings are adjustable, in both the horizontal and vertical planes. 16, A subsoil implement according to claim 14, wherein the wings are adjustable, in both the horizontal and vertical planes in the range between 5" and COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17 17/12 2008 WED 16:00 FAX +61 8 8211 9433 LESICAR PERRIN IP AUSTRALIA 0051/077 00 17. A subsoil implement according to any one of the preceding claims, wherein the subsoil implement of the invention is attached to a conventionally driven tractor O by means of a parallelogram frame. 18. A subsoil implement according substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings. 00 \O Soilworks Australia Pty Ltd SBy their Patent Attorneys Vi Lesicar Perrin 00 COMS ID No: ARCS-217470 Received by IP Australia: Time 16:32 Date 2008-12-17
AU2008258168A 2001-09-21 2008-12-17 Subsoil Tool Abandoned AU2008258168A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AUPR007801 2001-09-21
AUPR7801 2001-09-21
AU2002331445A AU2002331445A1 (en) 2001-09-21 2002-09-23 Subsoil tool

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU2002331445A Division AU2002331445A1 (en) 2001-09-21 2002-09-23 Subsoil tool

Publications (1)

Publication Number Publication Date
AU2008258168A1 true AU2008258168A1 (en) 2009-01-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
AU2008258168A Abandoned AU2008258168A1 (en) 2001-09-21 2008-12-17 Subsoil Tool

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AU (1) AU2008258168A1 (en)
WO (1) WO2003024193A1 (en)

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GB2456140B (en) * 2008-01-02 2011-01-12 Gj Tulett Building Contractor Excavation tool assembly
US8626401B2 (en) 2008-02-05 2014-01-07 Randal Tomich Cultivation system and a subsoil tool
FR2957947B1 (en) * 2010-03-23 2013-03-22 Sc Medinger R & D Soil compaction process, applications thereof and devices for implementing same
US9439338B2 (en) 2012-09-27 2016-09-13 Airis Societa' A Responsabilita'limitata Plow
WO2016033649A1 (en) * 2014-09-04 2016-03-10 Weba Australia Pty Ltd Fibre-based wear monitoring system
WO2018148599A1 (en) * 2017-02-13 2018-08-16 Agsoilworks Technology Company, Llc Improved vibrating subsoil tool
US10597850B2 (en) 2018-02-09 2020-03-24 Agsoilworks Technology Company, Llc Vibrating subsoil tool

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RU2102844C1 (en) * 1990-11-06 1998-01-27 Михаил Вильевич Орешкин Flat working tool

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