EP0261806B1 - A loader attachment - Google Patents
A loader attachment Download PDFInfo
- Publication number
- EP0261806B1 EP0261806B1 EP87307520A EP87307520A EP0261806B1 EP 0261806 B1 EP0261806 B1 EP 0261806B1 EP 87307520 A EP87307520 A EP 87307520A EP 87307520 A EP87307520 A EP 87307520A EP 0261806 B1 EP0261806 B1 EP 0261806B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- attachment
- frame
- loader
- bars
- body 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.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3631—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a transversal locking element
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7622—Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers
- E02F3/7627—Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers with the scraper blade adjustable relative to the frame about a vertical axis
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
Definitions
- the present invention relates to a loader attachment.
- U.S.Patent No. 4 521 980 enables the loader to perform additionally the function of a grader.
- Austrian Patent Specification No. 327 098 discloses a locking device between the lifting mechanism of a loader and an implement, such as for example a forked implement for a fork-lift truck, characterised by a mounting plate on the implement on the upper part of which is arranged a clip defining a recess and on the lower part of which are arranged two further clips with apertures therein; the recess and the apertures being engageable by components of a quick release mechanism.
- Many loaders are now provided with such quick release mechanisms which enable a bucket or other implement to be attached to or detached from a loader quickly and efficaciously without the operator having to leave the driving position of the loader.
- the invention is concerned with the provision of a connecting attachment for a loader which is improved with regard to the known means.
- an attachment for a loader having a driving position comprising in combination an elongated body member, generally in the form of a cylinder having a curved outer surface, with a blade member extending laterally of the elongated body member and projecting outwardly therefrom, the blade member being disposed relative to the attachment such that when the attachment is orientated in a first position the blade member is arranged to engage with the ground upon movement of the loader and when the attachment is orientated in a second position the curved outer surface of the body member is arranged to engage with the ground and to smooth the ground upon movement of the loader, characterised by a frame having a first end and a second end, the two ends of the frame being spaced apart from one another and the first end of the frame being attached to the curved surface of the elongated body member whilst the second end carries connection means, including at least one recess and at least one eye to enable the attachment to be engaged with and disengaged from a quick release mechanism carried
- a loader attachment 10 comprising an elongated hollow generally cylindrical body member 12 with domed closed off end 14
- the body member 12 has a curved outer surface 16.
- the loader attachment 10 comprises a generally triangular mounting member 18 welded to the curved outer surface 16.
- the mounting member 18 extends longitudinally of the body member 12.
- the mounting member 18 has an outer arcuate face which has an elongated blade member 20 mounted thereto.
- the blade member 20 is arcuate in transverse cross-section as can be seen in Figure 2 and is arranged to fit snugly with the arcuate face of the mounting member 18.
- the mounting member 18 contains a longitudinally extending row of threaded apertures (not shown) and the blade member 20 has a corresponding longitudinally extending row of apertures (not shown).
- the blade member 20 is attached to the mounting member 18 by means of threaded studs 22 with heads, said studs 22 being passed through respective holes in the blade member 20 and threadedly engaged with corresponding apertures in the mounting member 18.
- the blade member 20 extends transversely beyond the mounting member 18 and has an outer grading edge 24.
- a pair of curved plates 26 are welded to the curved surface 16 and are longitudinally spaced from one another. Further, the curved plates 26 are both disposed above the blade 20.
- a frame 28 is welded to the plates 26.
- the frame 28 has a first end adjacent the body member 12 and a second end remote from the body member 12.
- the frame 28 comprises a pair of upper bars 30 extending outwardly from respective plates 26.
- the frame 28 also comprises a pair of lower bars 32 extending outwardly from respective plates 26.
- Each bar 30 overlies the corresponding bar 32 and each pair of bars 30 and 32 is interconnected at its outer end by an upright bar 34. Further, each pair of bars 30 and 32 is interconnected at an intermediate point by a spacer bar 36.
- pairs of bars 30 and 32 converge together somewhat so that they are closer together at the second end of the frame 28 than they are at the first end of the frame 28.
- the bars 30 are interconnected by a lateral bar 38 and the bars 32 are interconnected by a lateral bar 40.
- the bars 38 and 40 are located between the upright bars 34.
- each of the upright bars 34 has a lower lug 42 and an upper hook 44 welded thereto.
- the lugs 42 each contain an eye 46 and the hooks 44 each contain a downwardly facing recess 48.
- the attachment 10 is engaged with a loader by means of a quick release engagement mechanism 60 (known per se of the loader part of which can be seen in Figures 1 to 3.
- the engagement mechanism 60 includes a pair of struts 62 pivotally connected to respective upwardly extending plates 64. The upper ends of the plates 64 are pivotally connected to respective hydraulic rams 66.
- An upper bifurcated member 68 extends between the plates 64.
- the member 68 contains recesses 69 (see Figure 3) to receive the hooks 44.
- each plate 64 contains an aperture 70.
- a quick release mechanism 72 shown in Figure 1 is located between the plates 64 .
- the quick release mechanism 72 includes a pair of pins 74 arranged to engage with respective apertures 70 and to be extended or retracted by means of a swivelling mechanism 76 controllable from the diving position of the loader by an operator.
- the engagement mechanism 60 is presented to the attachment 10 in the position shown in Figure 2 such that the recesses 69 of the member 68 engage with the hooks 44 in the recesses 48 and then the hydraulic ram 66 is retracted so that the lower ends of the plates 64 fit between the plates 42.
- the pins 74 are at this point retracted.
- the pins 74 are then moved to their extended positions at which they engage with the eyes 46 so as to firmly but releasably connect the loader to the attachment 10.
- attachment 80 which is similar to the attachment 10 of Figures 1 and 2 and like reference numerals denote like parts.
- the attachment 10 is in principle the same as the attachment 10 but is arranged to be attached to a different type of loader which is known per se.
- attachments 80 and 10 are that in the former the bars 30 and 32 are welded directly to the curved surface 16 of the body member 12. Further, the posts 34 are angle members.
- the posts 34 have mounted in their respective angles at their lower ends outwardly facing plates 82 each containing an eye 84. Further, there are downwardly inclined plates 86 attached to the posts 34 at their upper ends in their respective angles.
- the blade 20 is different in that the strip 68 is replaced by a bifurcated member 88.
- the quick release mechanism comprises a pair of upright pins 90 which are pivotally connected to respective lugs 92 and respective ends of an axially rotatable rod 94.
- the attachment 80 and its loader are releasably connected together in similar manner to the method described in relation to Figures 1 to 3, wherein the member 88 is engaged underneath the plates 82 and the adjacent parts of the posts 34 and the plates 64 are then inserted into the angles of the posts 34 until the pins 90 are in alignment with the eyes 84.
- FIG. 7 to 9 of the accompanying drawings there is shown an attachment 100 which is similar to the attachment 10 of Figures 1 and 2 and like reference numerals denote like parts.
- the attachment 100 is in principle the same as the attachment 10 but is arranged to be attached to a different type of loader which is known per se.
- the frame 28 bars are welded directly to the curved surface 16 of the body member 12.
- the frame 28 comprises a single central bar 101 extending away from the body member 12 to an upstanding lug 102 containing an eye 104A.
- the bars 104 are of the same length but are shorter than the bar 101.
- An intermediate cross bar 106 interconnects the ends of the bars 104 remote from the body member 12.
- the cross bar 106 contains a longitudinally extending channel shaped recess 108. Further, additional bars 110 extend from the bar 106 to the lug 104.
- the plates 64 are elongated and the rams 66 are connected to them at intermediate points.
- the plates 64 are less upwardly inclined than equivalent plates of the other embodiments.
- the quick release mechanism comprises a single pin 112 which is arranged to be retracted or extended.
- a cross member 114 interconnects the plates 64 at their free ends remote from the ram 66.
- the ram 66 is extended so as to lower the free ends of the plates 64 to enable them and the cross member 114 to engage with the recess 108. Then the ram 66 is retracted to enable the ends of the plates 66 between which the pin 112 is mounted to be lowered so that the aperture 104 and the pin 112 come into alignment.
- the pin 112 is extended so as to firmly but releasably engage the attachment 100 with the loader.
- framework 28 can be made so as to adapt the attachment of the present invention to other loaders which are available on the market and known per se.
- the driver of a loader can perform two functions with one machine i.e., the job of a loader and the job of a grader.
- the attachment of the present invention attached to a loader with the frame 28 lowered as shown in Figure 10, by operation of the engaging mechanism 60 of the loader in known manner, the blade 20 is pointed downwardly and is in a grading position. If the loader is reversed over a tract of ground, the ground is graded by the outer edge 24 of the blade 20.
- the use of the frame 28 has the additional advantages of spacing the attachment from the loader so that the attachment which is often wider than the loader does not foul the wheels or any other part of the loader and the driver can readily observe the operation of the attachment while seated in the driving position.
- Figures 12 and 13 there is shown a modification of the present invention.
- the embodiment shown in Figures 12 and 13 is similar to that shown in Figures 1 to 3 but the modification may be applied to all embodiments of the present invention.
- the body member 12 has a circular turntable 120 mounted on its upper surface.
- the turntable 120 contains a plurality of spaced apertures 122 extending in two opposed arcs around part of the principles of the turntable 120.
- a flat disc member 124 is arranged to mate with the turntable 120.
- the disc member 124 has a central aperture that fits over a stud 126 which projects upwardly from the turntable 120 so that the disc member 124 can be rotated relative to the turntable 120.
- the disc member 124 is retained in place by a nut 128 threadedly engaged with the stud 126.
- the disc member 124 contains a pair of apertures which are located diametrically opposite one another.
- the disc member 124 is connected to a frame 28 such as by welding.
- the disc member 124 is secured in position by means of threaded bolts 130 passed through the apertures of the disc member 124 and opposed pairs of apertures in the turntable 120 and secured by nuts 132.
- the attachment 10 can be orientated at right angles of the direction of travel or it can be orientated at 15 ° from the right angle position or at 30 ° from the right angle position by engaging the bolts 130 with the required pair of holes in the turntable 120.
- the angle can be adjusted at any time as required.
- an angle of 15 ° or 30 ° to the right angle it is found that it is easier to deposit dirt to one side only so that there is only a single ridge of residual dirt. This is especially useful when grading. It is envisaged that the 15 ° angle would be used in soft ground such as sand whilst the 30 ° angle would be used in firmer ground such as clay or gravel.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
Description
- The present invention relates to a loader attachment.
- In U.S. Patent Specification No. 4 521 980 in the name of the present applicant, there is described and claimed an attachment for a loader which attachment comprises an elongated body member, a lateral slot in the body member for engagement with a bucket of a loader, and a blade extending laterally of the body member.
- The attachment of U.S.Patent No. 4 521 980 enables the loader to perform additionally the function of a grader.
- Whilst the attachment of U.S. Patent No 4 521 980 performed satisfactorily it has the disadvantage of requiring the presence of a bucket on the loader and also the disadvantage of requiring the operator to connect and disconnect the attachment to the loader by means of chains. Also, it has been found that soil tends to accumulate and become compacted underneath the bucket in use.
- Austrian Patent Specification No. 327 098 discloses a locking device between the lifting mechanism of a loader and an implement, such as for example a forked implement for a fork-lift truck, characterised by a mounting plate on the implement on the upper part of which is arranged a clip defining a recess and on the lower part of which are arranged two further clips with apertures therein; the recess and the apertures being engageable by components of a quick release mechanism. Many loaders are now provided with such quick release mechanisms which enable a bucket or other implement to be attached to or detached from a loader quickly and efficaciously without the operator having to leave the driving position of the loader.
- The invention is concerned with the provision of a connecting attachment for a loader which is improved with regard to the known means.
- In accordance with the present invention there is provided an attachment for a loader having a driving position, comprising in combination an elongated body member, generally in the form of a cylinder having a curved outer surface, with a blade member extending laterally of the elongated body member and projecting outwardly therefrom, the blade member being disposed relative to the attachment such that when the attachment is orientated in a first position the blade member is arranged to engage with the ground upon movement of the loader and when the attachment is orientated in a second position the curved outer surface of the body member is arranged to engage with the ground and to smooth the ground upon movement of the loader, characterised by a frame having a first end and a second end, the two ends of the frame being spaced apart from one another and the first end of the frame being attached to the curved surface of the elongated body member whilst the second end carries connection means, including at least one recess and at least one eye to enable the attachment to be engaged with and disengaged from a quick release mechanism carried by the loader, which quick release mechanism is operable from the driving position of the loader.
- Embodiments of the present invention will now be described by way of example, with reference to the accompanying drawings, in which:
- Figure 1 is an upper perspective view of a first embodiment of loader attachment in accordance with the present invention also showing part of a quick release mechanism of a loader;
- Figure 2 is a side elevation of the attachment of Figure 1 showing a part of a loader arranged to engage with the attachment of Figure 1;
- Figure 3 is a plan view of the arrangement shown in Figure 2;
- Figure 4 is an upper perspective view of a second embodiment of a loader attachment in accordance with the present invention also showing part of a quick release mechanism of a loader;
- Figure 5 is a side elevation of the attachment of Figure 4 also showing a part of a blade arranged to engage with the attachment of Figure 4;
- Figure 6 is a plan view of the arrangement shown in Figure 5;
- Figure 7 is an upper perspective view of a third embodiment of a blade attachment in accordance with the present invention also showing part of a quick release mechanism of a loader;
- Figure 8 is a side elevation of the loader attachment of Figure 5 also showing a loader engagement mechanism arranged to engage with the attachment of Figure 7;
- Figure 9 is a plan view of the arrangement shown in Figure 8;
- Figure 10 is a side elevation of a loader engagement mechanism and the attachment of Figures 4 and 5 engaged together with the engagement mechanism so orientated that the attachment is in a first position;
- Figure 11 is a side elevation similar to Figure 10 except that the engagement mechanism is so orientated that the attachment is in a second position;
- Figure 12 is a plan view of part of a modified form of loader attachment in accordance with the present invention; and
- Figure 13 is a side elevation of the embodiment of Figure 12 with the attachment angled away from 90° to the direction of travel.
- In Figures 1 to 3, of the accompanying drawings, there is shown a
loader attachment 10 comprising an elongated hollow generallycylindrical body member 12 with domed closed offend 14 Thebody member 12 has a curvedouter surface 16. Theloader attachment 10 comprises a generallytriangular mounting member 18 welded to the curvedouter surface 16. Themounting member 18 extends longitudinally of thebody member 12. - Further, the
mounting member 18 has an outer arcuate face which has anelongated blade member 20 mounted thereto. Theblade member 20 is arcuate in transverse cross-section as can be seen in Figure 2 and is arranged to fit snugly with the arcuate face of themounting member 18. - The
mounting member 18 contains a longitudinally extending row of threaded apertures (not shown) and theblade member 20 has a corresponding longitudinally extending row of apertures (not shown). Theblade member 20 is attached to themounting member 18 by means of threadedstuds 22 with heads, saidstuds 22 being passed through respective holes in theblade member 20 and threadedly engaged with corresponding apertures in themounting member 18. As can be seen in Figure 2, theblade member 20 extends transversely beyond themounting member 18 and has anouter grading edge 24. - A pair of
curved plates 26 are welded to thecurved surface 16 and are longitudinally spaced from one another. Further, thecurved plates 26 are both disposed above theblade 20. Aframe 28 is welded to theplates 26. Theframe 28 has a first end adjacent thebody member 12 and a second end remote from thebody member 12. Theframe 28 comprises a pair ofupper bars 30 extending outwardly fromrespective plates 26. Theframe 28 also comprises a pair oflower bars 32 extending outwardly fromrespective plates 26. Eachbar 30 overlies thecorresponding bar 32 and each pair ofbars upright bar 34. Further, each pair ofbars spacer bar 36. - Further, as they extend away from the
curved surface 16 the pairs ofbars frame 28 than they are at the first end of theframe 28. - At the second end of the
frame 28 thebars 30 are interconnected by alateral bar 38 and thebars 32 are interconnected by alateral bar 40. Thebars upright bars 34. - Still further, each of the
upright bars 34 has alower lug 42 and anupper hook 44 welded thereto. - The
lugs 42 each contain aneye 46 and thehooks 44 each contain a downwardly facingrecess 48. - In use, the
attachment 10 is engaged with a loader by means of a quick release engagement mechanism 60 (known per se of the loader part of which can be seen in Figures 1 to 3. Theengagement mechanism 60 includes a pair ofstruts 62 pivotally connected to respective upwardly extendingplates 64. The upper ends of theplates 64 are pivotally connected to respectivehydraulic rams 66. An upper bifurcatedmember 68 extends between theplates 64. Themember 68 contains recesses 69 (see Figure 3) to receive thehooks 44. - Further, each
plate 64 contains anaperture 70. Between the plates 64 aquick release mechanism 72 shown in Figure 1 is located. Thequick release mechanism 72 includes a pair ofpins 74 arranged to engage withrespective apertures 70 and to be extended or retracted by means of aswivelling mechanism 76 controllable from the diving position of the loader by an operator. - In use, the
engagement mechanism 60 is presented to theattachment 10 in the position shown in Figure 2 such that therecesses 69 of themember 68 engage with thehooks 44 in therecesses 48 and then thehydraulic ram 66 is retracted so that the lower ends of theplates 64 fit between theplates 42. Thepins 74 are at this point retracted. Thepins 74 are then moved to their extended positions at which they engage with theeyes 46 so as to firmly but releasably connect the loader to theattachment 10. - In Figures 4 to 6, of the accompanying drawings, there is shown an
attachment 80 which is similar to theattachment 10 of Figures 1 and 2 and like reference numerals denote like parts. Theattachment 10 is in principle the same as theattachment 10 but is arranged to be attached to a different type of loader which is known per se. - The significant differences between the
attachments bars curved surface 16 of thebody member 12. Further, theposts 34 are angle members. - In this case, the
posts 34 have mounted in their respective angles at their lower ends outwardly facingplates 82 each containing aneye 84. Further, there are downwardlyinclined plates 86 attached to theposts 34 at their upper ends in their respective angles. - Still further, the
blade 20 is different in that thestrip 68 is replaced by a bifurcatedmember 88. - Also, the quick release mechanism comprises a pair of
upright pins 90 which are pivotally connected torespective lugs 92 and respective ends of an axiallyrotatable rod 94. Theattachment 80 and its loader are releasably connected together in similar manner to the method described in relation to Figures 1 to 3, wherein themember 88 is engaged underneath theplates 82 and the adjacent parts of theposts 34 and theplates 64 are then inserted into the angles of theposts 34 until thepins 90 are in alignment with theeyes 84. - The
pins 90 are then lowered by rotation of therod 94 until thepins 90 engage with theeyes 84 so as to connect the loader firmly but releasably to theattachment 80. In Figures 7 to 9, of the accompanying drawings there is shown anattachment 100 which is similar to theattachment 10 of Figures 1 and 2 and like reference numerals denote like parts. Theattachment 100 is in principle the same as theattachment 10 but is arranged to be attached to a different type of loader which is known per se. - The significant differences between the
attachments frame 28 bars are welded directly to thecurved surface 16 of thebody member 12. Further, theframe 28 comprises a singlecentral bar 101 extending away from thebody member 12 to anupstanding lug 102 containing an eye 104A. Further, there arelateral bars 104 which extend from thebody member 12 on either side of thecentral bar 101. Thebars 104 are of the same length but are shorter than thebar 101. - An
intermediate cross bar 106 interconnects the ends of thebars 104 remote from thebody member 12. Thecross bar 106 contains a longitudinally extending channel shapedrecess 108. Further,additional bars 110 extend from thebar 106 to thelug 104. - On the loader, the
plates 64 are elongated and therams 66 are connected to them at intermediate points. - Further, the
plates 64 are less upwardly inclined than equivalent plates of the other embodiments. - The quick release mechanism comprises a
single pin 112 which is arranged to be retracted or extended. Across member 114 interconnects theplates 64 at their free ends remote from theram 66. - In use, the
ram 66 is extended so as to lower the free ends of theplates 64 to enable them and thecross member 114 to engage with therecess 108. Then theram 66 is retracted to enable the ends of theplates 66 between which thepin 112 is mounted to be lowered so that theaperture 104 and thepin 112 come into alignment. - Then the
pin 112 is extended so as to firmly but releasably engage theattachment 100 with the loader. - Many modifications to the
framework 28 can be made so as to adapt the attachment of the present invention to other loaders which are available on the market and known per se. - By use of the attachment of the present invention, the driver of a loader can perform two functions with one machine i.e., the job of a loader and the job of a grader. With the attachment of the present invention attached to a loader with the
frame 28 lowered as shown in Figure 10, by operation of the engagingmechanism 60 of the loader in known manner, theblade 20 is pointed downwardly and is in a grading position. If the loader is reversed over a tract of ground, the ground is graded by theouter edge 24 of theblade 20. - In a second position with the
frame 28 lifted as shown in Figure 11 by the engaging mechanism of the loader in a manner known per se, theblade 20 is pointed upwardly somewhat so that the curvedcylindrical surface 16 of thebody member 12 contacts the ground. In this case as the loader is reversed over a tract of ground, thecurved surface 16 smooths ground which has been already levelled by theblade 20. - The fact that a loader can reverse with an attachment of the present invention in position when grading means that no tracks are left behind so that there is no need to level wheel tracks after grading.
- The use of the
frame 28 has the additional advantages of spacing the attachment from the loader so that the attachment which is often wider than the loader does not foul the wheels or any other part of the loader and the driver can readily observe the operation of the attachment while seated in the driving position. - In addition, all of the advantages of the attachment of U.S. Patent No. 4521980 and Australian Patent Application No. 29587/84 are obtained. Also, the absence of the bucket reduces the overall weight of the loader plus attachment assembly which is particularly advantageous with small machines such as skid steer loaders.
- In Figures 12 and 13 there is shown a modification of the present invention. The embodiment shown in Figures 12 and 13 is similar to that shown in Figures 1 to 3 but the modification may be applied to all embodiments of the present invention.
- Like reference numerals denote like parts to those found in Figures 1 to 3.
- However, in this embodiment, the
body member 12 has acircular turntable 120 mounted on its upper surface. Theturntable 120 contains a plurality of spacedapertures 122 extending in two opposed arcs around part of the principles of theturntable 120. Aflat disc member 124 is arranged to mate with theturntable 120. In this connection, thedisc member 124 has a central aperture that fits over astud 126 which projects upwardly from theturntable 120 so that thedisc member 124 can be rotated relative to theturntable 120. Thedisc member 124 is retained in place by anut 128 threadedly engaged with thestud 126. Thedisc member 124 contains a pair of apertures which are located diametrically opposite one another. - The
disc member 124 is connected to aframe 28 such as by welding. - The
disc member 124 is secured in position by means of threadedbolts 130 passed through the apertures of thedisc member 124 and opposed pairs of apertures in theturntable 120 and secured by nuts 132. - As shown in solid lines in Figure 12, the
attachment 10 can be orientated at right angles of the direction of travel or it can be orientated at 15° from the right angle position or at 30° from the right angle position by engaging thebolts 130 with the required pair of holes in theturntable 120. - Further, the angle can be adjusted at any time as required. By the use of an angle of 15° or 30° to the right angle it is found that it is easier to deposit dirt to one side only so that there is only a single ridge of residual dirt. This is especially useful when grading. It is envisaged that the 15° angle would be used in soft ground such as sand whilst the 30° angle would be used in firmer ground such as clay or gravel.
- Modifications and variations such as would be apparent to a skilled addressee may be made within the scope of the appended claims.
Claims (8)
102), including at least one recess (48, 108) and at least one eye (46, 104A) to enagle the attachment (10, 80, 100) to be engaged with and disengaged from a quick release mechanism (72) is operable from the driving position of the loader.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87307520T ATE57729T1 (en) | 1986-08-27 | 1987-08-25 | CHARGER. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPH769086 | 1986-08-27 | ||
AU7690/86 | 1986-08-27 | ||
AU77491/87A AU586119B2 (en) | 1986-08-27 | 1987-08-26 | A loader attachment |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0261806A1 EP0261806A1 (en) | 1988-03-30 |
EP0261806B1 true EP0261806B1 (en) | 1990-10-24 |
Family
ID=25638646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87307520A Expired - Lifetime EP0261806B1 (en) | 1986-08-27 | 1987-08-25 | A loader attachment |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0261806B1 (en) |
ES (1) | ES2019103B3 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2512114A (en) * | 1946-09-09 | 1950-06-20 | Robinson Garner Laverne | Tractor attachment |
US3760883A (en) * | 1972-03-27 | 1973-09-25 | Balderson Inc | Quick hitch assembly |
AT327096B (en) * | 1974-03-05 | 1976-01-12 | Schoberl & Soehne Joh | LOCKING DEVICE BETWEEN THE LIFTING DEVICE OF A CHARGER AND AN ADD-ON DEVICE |
US3876092A (en) * | 1974-07-26 | 1975-04-08 | Rivinius Inc | Implement connecting coupler mechanism |
GB2014942B (en) * | 1978-02-21 | 1982-07-28 | Loed Corp | Implement coupling apparatus |
US4230435A (en) * | 1978-07-21 | 1980-10-28 | Azevedo Albert J | Backhoe finishing tool |
AU571540B2 (en) * | 1983-06-21 | 1988-04-21 | Solaja, N. | Combination grader/loader attachment |
-
1987
- 1987-08-25 EP EP87307520A patent/EP0261806B1/en not_active Expired - Lifetime
- 1987-08-25 ES ES87307520T patent/ES2019103B3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2019103B3 (en) | 1991-06-01 |
EP0261806A1 (en) | 1988-03-30 |
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