AU2019202210A1 - A point assembly - Google Patents
A point assembly Download PDFInfo
- Publication number
- AU2019202210A1 AU2019202210A1 AU2019202210A AU2019202210A AU2019202210A1 AU 2019202210 A1 AU2019202210 A1 AU 2019202210A1 AU 2019202210 A AU2019202210 A AU 2019202210A AU 2019202210 A AU2019202210 A AU 2019202210A AU 2019202210 A1 AU2019202210 A1 AU 2019202210A1
- Authority
- AU
- Australia
- Prior art keywords
- point
- holder
- fixing
- aperture
- assembly
- 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.)
- Granted
Links
- 239000002689 soil Substances 0.000 claims abstract description 16
- 238000012546 transfer Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000010899 nucleation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 241000361919 Metaphire sieboldi Species 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/062—Devices for making drills or furrows
-
- 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
- A01B15/02—Plough blades; Fixing the blades
-
- 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
- A01B35/00—Other machines for working soil not specially adapted for working soil on which crops are growing
- A01B35/20—Tools; Details
- A01B35/22—Non-rotating tools; Resilient or flexible mounting of rigid tools
- A01B35/225—Non-rotating tools; Resilient or flexible mounting of rigid tools the tools being adapted to allow the chisel point to be easily fitted or removed from the shank
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
- E02F9/2825—Mountings therefor using adapters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/006—Minimum till seeding
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
- E02F9/2833—Retaining means, e.g. pins
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Soil Working Implements (AREA)
Abstract
Abstract A point assembly comprises a point holder fixable to a tine of an agricultural machine and a point element engageable with the point holder. The point 5 element includes a point portion for engaging with soil during use and a support projection. The point holder includes a retaining aperture arranged to receive the support projection and facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder. One of the point holder and point element includes a plurality of first fixing apertures, io and the other of the point holder and point element includes at least one second fixing aperture. The at least one second fixing aperture is alignable with each first fixing aperture based on the position of the point element relative to the point holder when the point element is engaged with the point holder, and the point element is fixable to the point holder by engaging a fixing device through is the aligned first and second fixing apertures. Alignment of each first fixing aperture with the each second fixing aperture defines a different distance between the point portion and the point holder. 11205256_1 (GHMatters) P108595.AU.1 29/03/19 Fig. 1
Description
A POINT ASSEMBLY
Field of the Invention
The present invention relates to a point assembly, to a point holder of the point assembly and to a point element of the point assembly.
Background of the Invention io No-till seeding involves cultivating with minimum controlled soil disturbance using a point element to cut a groove in the soil, typically to a depth between 80 to 180mm, to break up the soil before planting. With conventional seeding, the point elements are designed to turn the soil over and cause significant disturbance to the soil surface. In contrast, the point elements of a no-till is cultivator cut deeper and narrower furrows and do not turn the soil over. No-till or minimum tillage seeding has been found to result in less soil erosion, improved moisture retention and improved maintenance of the earthworm population density.
The point elements on cultivator tines are subject to high wear, particularly for higher break-out tines employed in hard, abrasive and rocky soils, and as a consequence the point elements require regular replacement.
A known removable point element uses one or more bolts to fix the point element to a tine, but this type of bolt-on point element can be difficult to attach due to poor accessibility for tightening and loosening of fixing nuts. The bolts and nuts also tend to become coated with soil, and to corrode in use, which further exacerbates the difficulties with tightening and loosening of nuts during replacement.
In Australian patent application No. 2002301735 filed by the present applicant, a point assembly is described that includes a support bracket fixable to a tine, and a point element engageable with and disengageable from the support bracket. The point element engages with the support bracket at 2 spaced locations so that loads during use are borne at the 2 locations, and the point element is retained relative to the support bracket using a locking pin that does not bear any load during use.
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-22019202210 29 Mar 2019
However, the point assembly in Australian patent application No. 2002301735 is configured for a point element of defined length, and because of this, when a hardened tip of the point element has worn, the point element must be discarded and replaced with a new point element.
Summary of the Invention
In accordance with a first aspect of the present invention, there is provided a point assembly comprising:
a point holder fixable to a tine of an agricultural machine; a point element engageable with the point holder, the point element including:
a point portion for engaging with soil during use; and is a support projection;
the point holder including:
a retaining aperture arranged to receive the support projection and facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder; and one of the point holder and point element including a plurality of first fixing apertures, and the other of the point holder and point element including at least one second fixing aperture;
wherein the at least one second fixing aperture is alignable with each first fixing aperture based on the position of the point element relative to the point holder when the point element is engaged with the point holder, and the point element is fixable to the point holder by engaging a fixing device through the aligned first and second fixing apertures, whereby alignment of each first fixing aperture with each second fixing aperture defines a different distance between the point portion and the point holder.
In an embodiment, the plurality of first fixing apertures are disposed on the point element and the at least one second fixing aperture is disposed on the point holder.
In an embodiment, the point holder includes first and second side walls and a base wall that together define a holder space for receiving the point element.
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-32019202210 29 Mar 2019 ln an embodiment, the holder space is open adjacent the at least one second fixing aperture such that when a fixing device is not received in the aligned first and second fixing apertures, the point element is able to rotate about the retaining aperture and move through the holder space between the first and second side wall portions in order to disengage the point element from the point holder.
In an embodiment, the at least one second fixing aperture includes 2 holder apertures respectively disposed on the first and second side wall portions.
In an embodiment, the base wall includes a first holder guide surface and the support projection includes a first element guide surface, the first holder guide surface arranged to contact the first element guide surface to facilitate guided movement of the point element relative to the point holder.
In an embodiment, the point element includes a middle section between the support projection and the point portion, the base wall includes a second holder guide surface, and the middle section includes a second element guide surface, the second holder guide surface arranged to contact the second element guide surface to facilitate guided movement of the point element relative to the point holder.
In an embodiment, the point assembly is arranged such that contact between the second holder guide surface and the second element guide surface serves to facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder.
In an embodiment, each of the first and second side walls includes a respective third holder guide surface and the middle section includes corresponding third element guide surfaces, the third holder guide surfaces arranged to contact the third element guide surfaces to facilitate guided movement of the point element relative to the point holder.
In an embodiment, the point assembly is arranged such that contact between the third holder guide surfaces and the third element guide surfaces serves to facilitate transfer during use of a load from the point element to the point holder when the point element is engaged with the point holder.
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-42019202210 29 Mar 2019 ln an embodiment, the point element includes at least one wing portion, each wing portion including a third element guide surface.
In an embodiment, the point holder includes at least one fixing aperture disposed in the base wall, the fixing aperture facilitating fixing of the point holder to a tine.
In an embodiment, the point holder includes a hook portion arranged to engage io a component on a tine to facilitate fixing of the point holder to the tine.
In an embodiment, the point portion includes at least one hardened portion, for example formed of tungsten material.
is In an embodiment, the point assembly is arranged such that the fixing device inserted through the aligned first and second element apertures serves to prevent the point element from disengaging from the point holder and substantially no load is transferred during use to the fixing device.
In accordance with a second aspect of the present invention, there is provided a point element for a point assembly having a point holder fixable to a tine of an agricultural machine, the point holder including a retaining aperture arranged to receive the point element and at least one holder fixing aperture;
the point element engageable with the point holder and comprising:
a point portion for engaging with soil during use; and a support projection arranged to be received in the retaining aperture of the point holder and to facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder; and a plurality of element fixing apertures;
wherein each element fixing aperture is alignable with the at least one holder fixing aperture based on the position of the point element relative to the point holder when the point element is engaged with the point holder, and wherein alignment of each element fixing aperture with each holder fixing aperture defines a different distance between the point portion and the point holder when the point element is engaged with the point holder.
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-52019202210 29 Mar 2019 ln accordance with a third aspect of the present invention, there is provided a point holder fixable to a tine of an agricultural machine, the point holder for a point assembly including a point element having a plurality of element apertures, the point element engageable with the point holder, the point holder comprising:
a retaining aperture arranged to receive a support projection of the point element and facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder; and first and second side walls and a base wall that together define a holder io space for receiving the point element;
at least one holder fixing aperture disposed in the side walls; wherein the holder space is open adjacent the at least one holder fixing aperture such that when a fixing device is not received in aligned holder and element fixing apertures the point element is able to rotate about the retaining is aperture and move through the holder space between the first and second side wall portions in order to disengage the point element from the point holder;
wherein the at least one holder fixing aperture is alignable with each element fixing aperture based on the position of the point element relative to the point holder when the point element is engaged with the point holder, and wherein alignment of each first fixing aperture with each second fixing aperture defines a different distance between the point portion and the point holder.
Brief Description of the Drawings
The present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 is a diagrammatic side view of a point assembly according to an embodiment of the present invention, the point assembly shown during use attached to a tine of an agricultural machine;
Figure 2 is a diagrammatic perspective view of the point assembly shown in Figure 1;
Figure 3 is a first diagrammatic perspective side view of a point holder of the point assembly shown in Figure 2;
Figure 4 is a second diagrammatic perspective view of the point holder shown in Figure 3;
Figure 5 is a diagrammatic perspective end view of the point holder
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-62019202210 29 Mar 2019 shown in Figures 3 and 4;
Figure 6 is a diagrammatic bottom view of the point holder shown in Figure 3;
Figure 7 is a first diagrammatic perspective view of a point element of the point assembly shown in Figure 2;
Figure 8 is a second diagrammatic perspective view of the point element shown in Figure 7;
Figure 9 is a diagrammatic top view of the point element shown in Figures 7 and 8;
io Figure 10 is a diagrammatic bottom view of the point element shown in
Figures 7 and 8; and
Figure 11 is a diagrammatic perspective view of a portion of the point assembly shown in Figure 1.
is Description of an Embodiment of the Invention
Referring to the drawings, Figures 1 and 2 show a point assembly 10 according to an embodiment of the present invention connected during use to a tine 12 of an agricultural machine (not shown).
The point assembly includes a point holder 14 fixed to the tine 12, and a point element 16 engageable with and disengageable from the point holder 14.
During use, the point element 16 pierces the soil and cuts a groove in the soil before planting.
It will be understood that the point holder 14 and the point element 16 may be formed of any wear resistant material suitable for use in an agricultural environment, for example iron material with strengthened portions at selected wear locations, for example formed of tungsten material.
As shown more particularly in Figures 3 to 6, the point holder 14 includes first and second side walls 18, 20 and a base wall 22 that together define a holder space 24 for receiving the point element 16, as shown in Figure 2.
A portion of the base wall 22 defines a first holder guide surface 26, as shown in Figure 5, arranged to contact the point element 16 during use to facilitate guided movement of the point element 16 relative to the point holder 14.
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-72019202210 29 Mar 2019
The point holder 14 also includes a first retaining arrangement for retaining the point element 16 relative to the point holder 14, the first retaining arrangement having a retaining aperture 28 through which a portion of the point element 16 is received when the point element 16 is engaged with the point holder 14.
The point holder 14 is also configured to facilitate fixing of the point holder 14 to the tine 12 in a simple way, and in this example the point holder 14 includes a fixing aperture 30, as shown in Figure 6, for example for receiving a bolt and io nut, and a hook portion 32, for engaging a component on the tine 12, for example a suitable rail provided on the tine 12.
The first and second side walls 18, 20 include respective first and second side wall portions 34, 36, which in this example include respective holder fixing is apertures 38, 40 for receiving a fixing device (not shown), such as a bolt or pin, for retaining the point element 16 relative to the point holder 14 when the point element 16 is engaged with the point holder 14. The holder fixing apertures 38, 40 and associated fixing device constitute a second retaining arrangement for retaining the point element 16 relative to the point holder 14.
The point holder 14 also includes a second holder guide surface 42, as shown in Figure 5, arranged to contact the point element 16 during use to facilitate guided movement of the point element 16 relative to the point holder 14. The second holder guide surface 42 is a surface of the base wall 22 between the first and second side wall portions 34, 36.
The point holder 14 also includes a third holder guide surface 44, as shown in Figure 5, arranged to contact the point element 16 during use to facilitate guided movement of the point element 16 relative to the point holder 14.
As shown more particularly in Figures 7 to 10, the point element 16 includes a support portion 50 that serves to engage the point element 16 with the point holder 14, and a point portion 52 that pierces the soil during use. In this example, the support portion 50 and the point portion 52 are integrally formed, for example by casting, although it will be understood that any suitable manufacturing technique is envisaged.
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-82019202210 29 Mar 2019
The support portion 50 includes a support projection 54 that is received through the retaining aperture 28 of the point holder 14 when the point element 16 engages with the point holder 14. The support projection 54 includes a first element guide surface 56 arranged to contact the first holder guide surface 26 during use as the point element 16 moves relative to the point holder 14 to facilitate guided movement of the point element 16 relative to the point holder 14.
The support portion 54 also serves to transfer a load during use from the point io element 16 to the point holder 14 at the retaining aperture 28 of the point holder
14.
The support portion 50 also includes a shoulder portion 58 and a middle section 60 provided with a plurality of point fixing apertures, in this example first, is second and third point fixing apertures 62, 64, 66, for receiving a fixing device (not shown), such as a bolt or pin, that serves to retain the point element 16 relative to the point holder 14 when the point element 16 is engaged with the point holder 14.
The support portion 50 also includes a second element guide surface 68, as shown in Figures 8 and 10, arranged to contact the second holder guide surface 42 during use as the point element 16 moves relative to the point holder 14 to facilitate guided movement of the point element 16 relative to the point holder 14.
The support portion 50 also includes at least one wing portion, in this example first and second wing portions 70, 72, each wing portion provided with a third element guide surface 74 arranged to contact a third holder guide surface 44 during use as the point element 16 moves relative to the point holder 14 to facilitate guided movement of the point element 16 relative to the point holder 14.
The first and second wing portions 70, 72 also serve to transfer a load during use from the point element 16 to the point holder 14 at the third holder guide surfaces 44.
In this example, the point portion 52 includes hardened portions, for example
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-92019202210 29 Mar 2019 corresponding to locations of the point element 16 that are expected to be subjected to the most wear during use. For this purpose, the point portion 52 includes hardened plates 76 and hardened tip portions 78, for example formed of tungsten material, that are fixed to the point portion 52 in any suitable way, for example by welding.
As best shown in Figures 2 and 11, the point element 16 and the point holder 14 are configured so that the point element 16 is fixable to the point holder 14 at any one of multiple locations defined by the locations of the point fixing io apertures 62, 64, 66 on the point element 16 by aligning a desired point fixing aperture 62, 64, 66 with the first and second fixing apertures 38, 40, and fixing using a suitable fixing device inserted through the aligned apertures. In this way, the distance between a free end of the point portion 52 and the point holder 14 can be selected by selecting a point fixing aperture 62, 64, 66 for is alignment with the first and second fixing apertures 38.
For example, if the point element 16 is new, a user may select the first point fixing aperture 62 such that the point element 16 is engaged with and fixed to the point holder 14 by receiving the support projection 54 of the point element
16 through the retaining aperture 28 of the point holder 14, aligning the first point fixing aperture 62 with the first and second holder fixing apertures 38, 40, and receiving a fixing device (not shown) such as a bolt or pin through the aligned point and holder fixing apertures 38, 40, 62.
As the point portion 52 of the point element 16 wears, the distance between a free end of the point portion 52 and the point holder 14 reduces, and to compensate for the reduction in useful length of the point portion 52, the user may remove the fixing device, and move the point element 16 relative to the point holder 14 until the second point fixing aperture 64 aligns with the first and second holder fixing apertures 38, 40. The fixing device is then received through the aligned point and holder fixing apertures 38, 40, 62 to fix the point element 16 in a new position relative to the point holder 14.
Similarly, as the point portion 52 of the point element 16 further wears, the distance between a free end of the point portion 52 and the point holder 14 further reduces, and to compensate for the further reduction in useful length of the point portion 52, the user may again remove the fixing device, move the
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-102019202210 29 Mar 2019 point element 16 relative to the point holder 14 until the third point fixing aperture 66 aligns with the first and second holder fixing apertures 38, 40, and fix the point element 16 relative to the point holder 14 using the fixing device.
The effect therefore is an arrangement whereby the length of the operative portion of the point element 16 can be maintained at a useful length even though the total length of the point element 16 reduces during use as the point portion 52 wears.
io However, it will be understood that instead of, or in addition to, providing multiple fixing apertures on the point element 16 for this purpose, multiple holder fixing apertures 38, 40 may be provided on the point holder 14 at different locations on the point holder 14.
is The point element 16 and the point holder 14 are also configured so that when the point element 16 is engaged with the point holder 14, a load during use is transferred from the point element 16 to the point holder 14 at at least 2 spaced locations. Firstly, a load is transferred at the first retaining arrangement provided by the retaining aperture 28 in the point holder 14 by virtue of contact between the support projection 54 and the point holder 14 at the retaining aperture 28. Secondly, a load is transferred from the point element 16 to the point holder 14 by virtue of contact between the first and second wing portions 70, 72 and the point holder 14.
It will be understood that, in addition, a load may be transferred from the point element 16 to the point holder 14 by virtue of contact between the second element guide surface 68 and the second holder guide surface 42.
It will be appreciated that little to no load is transferred to the fixing device inserted through the aligned holder and element apertures, particularly if the diameter of the fixing device is sufficiently small compared to the diameter of the aligned holder and element apertures. In this way, the fixing device serves only to prevent the point element 16 from disengaging from the point holder.
In this example, the point element 16 and the point holder 14 are also configured so that when the point element 16 is engaged with the point holder 14, the profiles of at least the third holder guide surfaces 44 and the third
11205256_1 (GHMatters) P108595.AU.1 29/03/19
-11 2019202210 29 Mar 2019 element guide surfaces 74, and optionally the profiles of the first holder guide surface 26 and the first element guide surface 56, and the profiles of the second holder guide surface 42 and the second element guide surface 68, serve to define a path of movement of the point element 16 relative to the point holder 14 that corresponds to alignment of the holder fixing apertures 38, 40 with the first, second and third point fixing apertures 62, 64, 66. This assists a user to align the holder fixing apertures 38, 40 with a first, second or third point fixing aperture 62, 64, 66, whilst ensuring good contact between the point element 16 and the point holder 14 at the third holder guide surfaces 44 and the io third element guide surfaces 74 as the relative position of the point element 16 is modified to compensate for wear of the point element 16 during use.
It will also be understood that since the point element 16 is:
retained relative to the point holder 14 using the first and second is retaining arrangements corresponding to reception of the support projection 54 in the retaining aperture 28, and insertion of a fixing device in aligned holder and point fixing apertures 38, 40, 62, 64, 66; and the point holder 14 is open at the first and second side wall portions 34, 36;
in order to remove the point element 16 from the point holder 14, a user need only remove the fixing device from the aligned holder and point fixing apertures 38, 40, 62, 64, 66 and apply a force to the point element 16 to cause the point element 16 to rotate about the retaining aperture 28 and the middle section 60 of the point element 16 to move through a space between the first and second side wall portions 34, 36 in a direction away from the second holder guide surface 42.
It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
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- 122019202210 29 Mar 2019
Modifications and variations as would be apparent to a skilled addressee are deemed to be within the scope of the present invention.
Claims (5)
- CLAIMS:1. A point assembly comprising:a point holder fixable to a tine of an agricultural machine;5 a point element engageable with the point holder, the point element including:a point portion for engaging with soil during use; and a support projection;the point holder including:io a retaining aperture arranged to receive the support projection and facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder; and one of the point holder and point element including a plurality of first fixing apertures, and the other of the point holder and point element including at is least one second fixing aperture;wherein the at least one second fixing aperture is alignable with each first fixing aperture based on the position of the point element relative to the point holder when the point element is engaged with the point holder, and the point element is fixable to the point holder by engaging a fixing device through20 the aligned first and second fixing apertures, whereby alignment of each first fixing aperture with the each second fixing aperture defines a different distance between the point portion and the point holder.
- 2. A point assembly as claimed in claim 1, wherein the plurality of first fixing25 apertures are disposed on the point element and the at least one second fixing aperture is disposed on the point holder.
- 3. A point assembly as claimed in claim 1 or claim 2, wherein the point holder includes first and second side walls and a base wall that together define30 a holder space for receiving the point element.
- 4. A point assembly as claimed in claim 3, wherein the holder space is open adjacent the at least one second fixing aperture such that when a fixing device is not received in the aligned first and second fixing apertures, the point35 element is able to rotate about the retaining aperture and move through the holder space between the first and second side wall portions in order to disengage the point element from the point holder.11205256_1 (GHMatters) P108595.AU.1 29/03/192019202210 29 Mar 2019- 145. A point assembly as claimed in claim 3 or claim 4, wherein the at least one second fixing aperture includes 2 holder apertures respectively disposed on the first and second side wall portions.6. A point assembly as claimed in any one of claims 3 to 5, wherein the base wall includes a first holder guide surface and the support projection includes a first element guide surface, the first holder guide surface arranged to contact the first element guide surface to facilitate guided movement of the io point element relative to the point holder.7. A point assembly as claimed in any one of claims 3 to 6, wherein the point element includes a middle section between the support projection and the point portion, the base wall includes a second holder guide surface, and the is middle section includes a second element guide surface, the second holder guide surface arranged to contact the second element guide surface to facilitate guided movement of the point element relative to the point holder.8. A point assembly as claimed in claim 7, wherein the point assembly is20 arranged such that contact between the second holder guide surface and the second element guide surface serves to facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder.25 9. A point assembly as claimed in any one of claims 3 to 8, wherein each of the first and second side walls includes a respective third holder guide surface and the middle section includes corresponding third element guide surfaces, the third holder guide surfaces arranged to contact the third element guide surfaces to facilitate guided movement of the point element relative to the point30 holder.10. A point assembly as claimed in claim 9, wherein the point assembly is arranged such that contact between the third holder guide surfaces and the third element guide surfaces serves to facilitate transfer during use of a load35 from the point element to the point holder when the point element is engaged with the point holder.11205256_1 (GHMatters) P108595.AU.1 29/03/192019202210 29 Mar 2019- 1511. A point assembly as claimed in claim 9 or claim 10, wherein the point element includes at least one wing portion, each wing portion including a third element guide surface.
- 5 12. A point assembly as claimed in any one of claims 3 to 11, wherein the point holder includes at least one fixing aperture disposed in the base wall, the fixing aperture facilitating fixing of the point holder to a tine.13. A point assembly as claimed in any one of the preceding claims, wherein io the point holder includes a hook portion arranged to engage a component on a tine to facilitate fixing of the point holder to the tine.14. A point assembly as claimed in any one of the preceding claims, wherein the point portion includes at least one hardened portion, for example formed of is tungsten material.15. A point assembly as claimed in any one of the preceding claims, wherein the point assembly is arranged such that the fixing device inserted through the aligned first and second fixing apertures serves to prevent the point element20 from disengaging from the point holder and substantially no load is transferred during use to the fixing device.16. A point element for a point assembly having a point holder fixable to a tine of an agricultural machine, the point holder including a retaining aperture25 arranged to receive the point element and at least one holder fixing aperture; the point element engageable with the point holder and comprising:a point portion for engaging with soil during use; and a support projection arranged to be received in the retaining aperture of the point holder and to facilitate transfer of a load from the30 point element to the point holder when the point element is engaged with the point holder; and a plurality of element fixing apertures; wherein each element fixing aperture is alignable with the at least one holder fixing aperture based on the position of the point element relative to the35 point holder when the point element is engaged with the point holder, and wherein alignment of each element fixing aperture with each holder fixing aperture defines a different distance between the point portion and the point11205256_1 (GHMatters) P108595.AU.1 29/03/192019202210 29 Mar 2019-16holder when the point element is engaged with the point holder.17. A point element as claimed in claim 16, wherein the support projection includes a first element guide surface arranged to contact the point holder to5 facilitate guided movement of the point element relative to the point holder.18. A point element as claimed in claim 17, wherein the point element includes a middle section between the support projection and the point portion, and the middle section includes a second element guide surface arranged to io contact the point holder to facilitate guided movement of the point element relative to the point holder.19. A point element as claimed in claim 18, wherein the middle section includes third element guide surfaces arranged to contact the point holder to is facilitate guided movement of the point element relative to the point holder.20. A point element as claimed in any one of claims 16 to 18, wherein the point portion includes at least one hardened portion.20 21. A point holder fixable to a tine of an agricultural machine, the point holder for a point assembly including a point element having a plurality of element apertures, the point element engageable with the point holder, the point holder comprising:a retaining aperture arranged to receive a support projection of the point25 element and facilitate transfer of a load from the point element to the point holder when the point element is engaged with the point holder; and first and second side walls and a base wall that together define a holder space for receiving the point element;at least one holder fixing aperture disposed in the side walls;30 wherein the holder space is open adjacent the at least one holder fixing aperture such that when a fixing device is not received in aligned holder and element fixing apertures the point element is able to rotate about the retaining aperture and move through the holder space between the first and second side wall portions in order to disengage the point element from the point holder;35 wherein the at least one holder fixing aperture is alignable with each element fixing aperture based on the position of the point element relative to the point holder when the point element is engaged with the point holder, and11205256_1 (GHMatters) P108595.AU.1 29/03/192019202210 29 Mar 2019- 17wherein alignment of each holder fixing aperture with an element fixing aperture defines a different distance between the point portion and the point holder.5 22. A point holder as claimed in claim 21, wherein the point holder includes first and second side walls and a base wall that together define a holder space for receiving the point element.23. A point holder as claimed in claim 22, wherein the holder space is open io adjacent the at least one holder fixing aperture such that when a fixing device is not received in the aligned first and second fixing apertures, the point element is able to rotate about the retaining aperture and move through the holder space between the first and second side wall portions in order to disengage the point element from the point holder.24. A point holder as claimed in claim 22 or claim 23, wherein the at least one holder fixing aperture includes 2 holder fixing apertures respectively disposed on the first and second side wall portions.20 25. A point holder as claimed in any one of claims 22 to 24, wherein the base wall includes a first holder guide surface arranged to contact the point element to facilitate guided movement of the point element relative to the point holder.25 26. A point holder as claimed in any one of claim 22 to 25, wherein the base wall includes a second holder guide surface arranged to contact the point element to facilitate guided movement of the point element relative to the point holder.30 27. A point holder as claimed in any one of claims 22 to 26, wherein each of the first and second side walls includes a respective third holder guide surface arranged to contact the point element to facilitate guided movement of the point element relative to the point holder.35 28. A point holder as claimed in any one of claims 22 to 27, wherein the point holder includes at least one fixing aperture disposed in the base wall, the fixing aperture facilitating fixing of the point holder to a tine.11205256_1 (GHMatters) P108595.AU.1 29/03/192019202210 29 Mar 2019-1829. A point holder as claimed in any one of claims 21 to 28, wherein the point holder includes a hook portion arranged to engage a component on a tine to facilitate fixing of the point holder to the tine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2018901610 | 2018-05-10 | ||
| AU2018901610A AU2018901610A0 (en) | 2018-05-10 | A point assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2019202210A1 true AU2019202210A1 (en) | 2019-11-28 |
| AU2019202210B2 AU2019202210B2 (en) | 2024-09-19 |
Family
ID=68618227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2019202210A Active AU2019202210B2 (en) | 2018-05-10 | 2019-03-29 | A point assembly |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2019202210B2 (en) |
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2019
- 2019-03-29 AU AU2019202210A patent/AU2019202210B2/en active Active
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|---|---|
| AU2019202210B2 (en) | 2024-09-19 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PC1 | Assignment before grant (sect. 113) |
Owner name: SOILPRO PTY LTD Free format text: FORMER APPLICANT(S): COALFIELDS ENGINEERING PTY LTD |