EP1580329A1 - Werkzeugschnellwechselvorrichtung - Google Patents

Werkzeugschnellwechselvorrichtung Download PDF

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Publication number
EP1580329A1
EP1580329A1 EP04007260A EP04007260A EP1580329A1 EP 1580329 A1 EP1580329 A1 EP 1580329A1 EP 04007260 A EP04007260 A EP 04007260A EP 04007260 A EP04007260 A EP 04007260A EP 1580329 A1 EP1580329 A1 EP 1580329A1
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EP
European Patent Office
Prior art keywords
implement
arm
coupling
quick coupling
power circuit
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
Application number
EP04007260A
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English (en)
French (fr)
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EP1580329B1 (de
Inventor
Engström Stig
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DK04007260T priority Critical patent/DK1580329T3/da
Priority to EP20040007260 priority patent/EP1580329B1/de
Publication of EP1580329A1 publication Critical patent/EP1580329A1/de
Application granted granted Critical
Publication of EP1580329B1 publication Critical patent/EP1580329B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
    • 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
    • E02F3/3622—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 locking element acting on a pin
    • 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
    • E02F3/3654—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool
    • 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
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated

Definitions

  • the present invention relates to a device and a method for coupling an operating arm of an excavator, a backhoe loader or a like machine to an implement. It also relates to an arm quick coupling part and an implement quick coupling part for use in such a device.
  • Modern excavators, backhoe loaders and like machines are often used together with different implements, such as shovels, snow ploughs, truck forks or grabbers.
  • Many of these implements include hydraulically and/or electrically operable parts, for example a movable bottom part of a shovel, adjustable snow ploughs or grabber arms.
  • Such implements have to be mechanically and hydraulically and/or electrically connected to and disconnected from the hydraulic and/or electric power system of the relevant machine. It is not unusual that the operator has to change implement several times during a working day. Therefore, many different types of quick coupling arrangements have been developed for coupling an operating arm of such a machine to an implement.
  • Quick coupling arrangements include two, spaced, parallel coupling rods mounted on the implement.
  • the quick coupling part mounted on the operating arm is then in different ways adapted for cooperation with these rods for holding and locking the implement.
  • quick couplings are entirely operable from the driving position, i.e. the operator need not leave his position and step outside for shifting implement.
  • These quick couplings manage both the mechanical, the hydraulic and/or electric coupling. They also often include hydraulically operated mechanical locking devices for locking the quick coupling in a coupled position. In designing such quick couplings, it is generally a problem to provide for and to couple the rather sensitive hydraulic coupling parts.
  • a quick coupling arrangement for connecting an implement to an excavator while at the same time connecting a power system to the implement is known through WO 93/05241.
  • This known arrangement includes a quick coupling device mounted on an excavator arm for cooperation with two spaced, parallel bolts mounted on the implement.
  • the quick coupling device includes a first, fixed semicircular recess. It further includes a hydraulically movable locking device. A second semicircular recess and a hydraulic coupling part are provided on the locking device, which are movable together with the locking device in a linear direction.
  • On the implement there is also mounted a hydraulic coupling part for cooperation with the part on the movable locking device.
  • the invention is directed to a quick coupling.
  • the invention is directed to an arm quick coupling part and an implement coupling part for use in a quick coupling.
  • the invention is directed to a method for coupling together a quick coupling.
  • the quick coupling is intended for being used in connection with heavy duty machines such as excavators or backhoe loaders. These machines operate with different types of implements.
  • the term "implement” is to be understood as any work attachment or tool, for example shovels, grabbers or lifting forks.
  • the implement is connected to the operating arm of the relevant machine during operation of the machine.
  • Adapters may be mounted between the arm and the implement, for example a tilt-rotator.
  • a tilt-rotator is a device that allows the connected parts to rotate and tilt relative each other.
  • the quick coupling according to the invention is suitable both for coupling an implement directly to an arm, and for coupling adapters to an arm and to an implement. Consequently, several quick couplings may be used at the same time in a machine.
  • the quick coupling includes two parts capable of being coupled or uncoupled. In this application the parts are referred to as "arm quick coupling part” and “implement coupling part", although they may, as indicated, be placed on an adapter or on other parts of a relevant machine itself or on other parts for use on a relevant machine.
  • the invention relates to a kind of quick coupling arrangements which include two spaced parallel implement mechanical coupling rods included in the implement quick coupling part.
  • There exist different standards for these rods i.e. variations regarding centre-to-centre-distances, rod length and cross sections.
  • One advantage of the present invention is that it easily is adaptable to such variations as will be described later.
  • the inventions concerns implements including a power circuit.
  • the implement may have movable parts or other features relying on power supply.
  • the power circuit may be of an arbitrary kind, for example an electric, a hydraulic, or a pneumatic circuit. Several circuits of the same kind or different kinds may be included in a single implement/arm.
  • the power system of the excavator is connected to the implement by the quick coupling according to the invention.
  • One power coupling part is situated on the arm quick coupling part and one power coupling part is situated on the implement quick coupling part.
  • the power coupling parts often constitute male and female parts, respectively, for mutual insertion. Consequently, the parts will not connect at all unless they are positioned such that the male part is able to slide into the opening of the female part.
  • the power coupling parts are sensitive to strain and wear and may easily be damaged if pushed together by non-linear forces. Therefore, it is desirable to couple the power coupling parts in the linear direction of their longitudinal axes.
  • the object is achieved by, on the one hand, arranging the arm quick coupling part and the implement quick coupling part for being accurately positioned relative each other, and on the other hand, arranging the arm quick coupling part for being, at least in a final part of the coupling movement, coupled to the implement quick coupling part in the desired linear direction.
  • the whole coupling parts are moved relative each other.
  • the arm quick coupling part includes arm mechanical coupling means for cooperation with the implement mechanical coupling rods.
  • the arm mechanical coupling means are arranged for functioning as means for holding and locking the implement as well as means for guiding the arm quick coupling part in its movement.
  • the action of coupling the quick coupling according to the invention includes the action of accurately position the power coupling parts and the action of coupling together the power coupling parts. Consequently, it is possible to arrange the arm quick coupling for movement in a single, linear direction, or for, during a first part of the movement, position the power coupling parts and, during a final part of the movement, couple together the power coupling parts.
  • the arm mechanical coupling means also include locking means for locking the quick coupling in a coupled position. It is possible to arrange the locking means for being operable by a power system.
  • the arm mechanical coupling means prefferably includes separate means for guiding the arm quick coupling part during the coupling movement, which separate means cooperate with the implement mechanical coupling rods or some other part on the implement quick coupling part.
  • the arm mechanical coupling means include first and second engagement means for engagement with the first and second implement mechanical coupling rods, respectively.
  • the engagement means are arranged for, in cooperation with the implement mechanical coupling rods, holding the implement as well as for guiding the arm quick coupling part during the coupling movement.
  • two engagement means it is advantageously possible to fix the relative angular position of the quick coupling parts.
  • said engagement means include slots for receiving the first and second rods respectively, which slots include guide surfaces for the rods.
  • the arm coupling part is to be moved so that the rods abut their corresponding guide surface during the coupling movement. Thereby the arm quick coupling part is guided in its movements in a plane normal to the longitudinal direction of the coupling rods.
  • said engagement means constitute hook-like portions defining said slots.
  • the power coupling parts are accurately positioned and aligned when the rods are inserted in entrance openings of the slots.
  • the guide surfaces then function to guide the arm quick coupling part in the linear movement of coupling the power coupling parts only.
  • the guide surfaces of the slots includes a first part, which the rod abuts during said first part of the movement for positioning and aligning the power coupling parts, and a second part, which the rod abuts during said final part of the movement for coupling together the power coupling parts in a straight, linear direction.
  • the final linear movement is in a direction being perpendicular to the longitudinal axes of the rods and parallel to the plane defined by the longitudinal axes of the rods.
  • the guide surfaces according to the above embodiments also function to guide the rods to the correct position for the mechanical holding and locking of the implement.
  • the quick coupling parts include guide means for guiding the arm quick coupling part in the longitudinal direction of the rods during the coupling movement.
  • the arm quick coupling part includes one part of the guide means and the implement quick coupling part includes a complementary part.
  • the mechanical coupling means include accurately machined stops defining the coupled position. This ensures that the quick coupling parts are closely fitted together when being coupled and that the power coupling parts are not subjected to coupling forces after they have been fully inserted.
  • the stops are constituted by the final portions of said slots.
  • the first engagement means are able to engage either one of the first and second implement mechanical coupling rods and the.second engagement means are able to engage the respective other one of the first and second implement mechanical coupling rods.
  • the implement coupling part include first implement power circuit coupling means arranged for being coupled to the arm power circuit coupling means when the first engagement means is engaged with the first implement mechanical coupling rod.
  • the implement coupling part includes second implement power circuit coupling means arranged for being coupled to the arm power circuit coupling means when the first engagement means is engaged with the second implement mechanical coupling rod.
  • all power coupling parts are rigidly mounted due to the possibility of accurately position, align and couple together the power coupling parts enabled by the invention.
  • the arm power circuit coupling means are resiliently or flexibly mounted.
  • the person skilled in the art realises many different ways of resiliently mounting the power coupling parts, for example by an intermediate spring or by an elastic bushing.
  • a quick coupling in accordance with a first embodiment of the present invention includes an arm quick coupling part 1 and an implement quick coupling part 2.
  • the arm quick coupling part 1 can be directly mounted to an hydraulic arm of an excavator, a backhoe loader or like machine, or to an intermediate device such as an adapter, for example a tilt-rotator (not shown).
  • the implement coupling part can be directly mounted to an implement such as a shovel, grabber or to an intermediate device such as an adapter, for example a tilt-rotator (not shown).
  • the implement quick coupling part 2 includes two spaced, parallel implement plates 6.
  • First and second spaced parallel implement mechanical coupling rods 3, 4 extend between the plates 6 in a direction essentially normal to the plane of both plates 6.
  • the rods 3, 4 are at their ends fixed to the plates 6.
  • adjusting screws 31 are lead through the implement plates 6, one adjusting screw 31 being mounted near each fixing point of rods 3, 4.
  • Implement power circuit coupling means constituted by male parts 5 of hydraulic couplings are provided on the implement coupling part 2. There are provided four male parts 5, two at each plate 6. The male parts 5 on the same implement plate 6 face in opposite directions towards the respective one of the rods 3, 4. The male parts 5 are rigidly mounted and they are aligned for being coupled in a direction that is perpendicular to the rods and parallel to the plane defined by the rods 3, 4.
  • the arm coupling part 1 includes two spaced, parallel arm plates 7.
  • the plates 7 are connected by first and second connecting plates 8, 9.
  • the arm coupling part 1 includes arm mechanical coupling means constituted by first and second slots 10, 11 being provided in the arm plates 7.
  • the portions around the slots 10, 11 are enforced with enforcement blocks 15.
  • the first slots 10 are adapted for cooperation with the first rod 3 and the second slots 11 are adapted for cooperation with the second rod 4.
  • the slots 10, 11 all have a semi-circular end portion 14.
  • the centre axes 17 of the end portions 14 define a reference plane 18.
  • Each first slot 10 includes an entrance opening 12 lying in a plane being essentially parallel to the reference plane 18.
  • a guide surface 13, which defines one of the sides of each slot 10, connects the opening 12 with the end portion 14.
  • the guide surface 13 has a curved part adjacent to the opening 12, which curved part transforms into a linear part adjacent to the end portion 14.
  • the curved part curves approximately 45° from the entrance opening 12 to the linear part.
  • the linear part is essentially parallel to the reference plane 18.
  • a linear surface 32 being essentially parallel to the linear part of the guide surface 13 connects to the end portion 14.
  • This linear surface 32 constitutes the inner surface of a hook-like portion 19 and defines the other of the sides of the slot 10.
  • the hook-like portion 19 terminates in a bevelled edge 20 at the entrance opening 12.
  • Each second slot 11 includes an entrance opening 21 lying in a plane being essentially perpendicular to the reference plane 18. Each second slot 11 extends in a direction being essentially parallel to the reference plane 18. Each second slot 11 is, on both its sides, defined by linear second guide surfaces 22 respectively being essentially parallel to the reference plane 18. The second guide surfaces 22 transform into the end portion 14 from their respective side.
  • One of the second guide surfaces 22 of each slot 11 constitutes the inner surface of a hook-like portion 23 being essentially identical to the hook-like portion 19 described in connection with the first slot 10. Also the hook-like portion 23 terminates in a bevelled edge 24 at the entrance opening 21.
  • each one of the arm plates 7 has a protruding edge 25.
  • the linear guide surfaces 22 that are opposite the hook-lie portion are located in the same plane as the linear part of guide surfaces 13.
  • the bevelled edges 20, 24 include arm guide surfaces for cooperation with the adjusting screws 31 on the implement coupling part 2.
  • Arm power circuit coupling means constituted by female parts 26 of hydraulic couplings are provided on the arm coupling part 1. There are provided two female parts 26, one at each enforcement block 15 of the first slot 10. Both female parts are facing towards the second slot 11.
  • the female parts 26 are resiliently mounted and they are aligned for being coupled in a direction that is perpendicular to the centre axes 17 and parallel to the reference plane 18.
  • Both quick coupling parts 1, 2 are symmetrical over a longitudinal axis 16.
  • the locking device 27 being part of the mechanical coupling means is shown.
  • the locking device 27 includes a locking element 28 and a hydraulic operating means 30.
  • the locking element 28 is pivotable mounted around a pivot axis 29 being parallel with the centre axis 17 and fixed to the arm plates 7 near both the first slots 10.
  • One end of a hydraulic cylinder of the hydraulic operating means 30 is fixed to both of the arm plates 6 close to the second slots 11.
  • the distal end of the piston cooperating with said hydraulic cylinder is fixed to the locking element 28 at a distance from the pivot axis 29.
  • the locking element 28 includes a locking arm 31.
  • the arm quick coupling part 1 is moved towards the implement quick coupling part 2 such that the slots 10, 11 are moved towards the first and second rods 3, 4.
  • the second slots 11 are kept at an equal or greater distance from the second coupling rod 4 than the first slots 10 from the first coupling rod 3.
  • the first rod 3 is brought into engagement with the first guide surfaces 13 at the entrance openings 12, possibly guided by the bevelled edges 20.
  • the arm quick coupling part 1 is further lowered and also moved slightly towards the second rod 4 guided by the first guide surface 13. If necessary, the arm quick coupling part 1 is simultaneously pivoted bringing the second slots 11 closer to the second rod 4. This movement is continued until the second rod 4 abuts against the protruding edges 22, possibly being guided by the bevelled edges 24.
  • the arm quick coupling part 1 is fixed in its angular position in relation to the implement quick coupling part 2. Further, in this position, a pair of female parts 26 of the hydraulic coupling provided on the arm coupling part 1 are aligned with a pair of male parts 5 of the hydraulic coupling which pair is provided on the implement quick coupling part 2 facing the first rod 3. If necessary, the position of the arm quick coupling part 1 can be adjusted by adjusting the adjustment screws 31.
  • the arm quick coupling part 1 is moved bringing the female 26 and male parts 5 together in a linear direction that is perpendicular to the rods 3, 4 and parallel to the plane of the rods 3, 4.
  • the arm quick coupling part 1 is guided by the first rod 3 abutting against the linear part of each guide surface 13 and against each linear surface 32, and by the second rod 4 abutting against the linear guide surfaces 22 of each second slot 11.
  • the arm quick coupling part 1 is kept in the correct position in the longitudinal direction of the rods 3, 4 by the adjustment screws 31 abutting against the enforcement blocks 15. Consequently, it is hereby ensured that the previously aligned hydraulic coupling parts 5, 26 are coupled in a linear direction minimizing the risk for damaging the coupling parts 5, 26.
  • the quick coupling described above is capable of being uncoupled in the reversed way.
  • the arm coupling part 1 advantageously is capable of being coupled the other way, i.e. the first slots 10 receive the second rod 4 and the second slots receive the first rod 3.
  • the female parts 26 of the hydraulic couplings mounted on the arm coupling part connect with said second pair. This is suitable for implements having different functions in different directions or for optimising the position in relation to the relevant machine.
  • the alternative embodiments i.e. a second embodiment according to Figs. 4-6 and a third embodiment according to Figs. 7 - 9, differ from the first embodiment in the design of the first and second slots 10, 11 and in that the male parts 5 of the hydraulic couplings and the female parts 26 of the hydraulic couplings are aligned in another direction adapted to the design of the first and second slots 10, 11.
  • slots 10, 11 have equal form and shape. Like the first embodiment, the slots 10, 11 have a semi-circular end portion 14. The centre axes 17 of the end portions 14 define a reference plane 18. The slots 10, 11 each includes an entrance opening 12, 21 lying in a plane being essentially parallel to the reference plane 18.
  • Each slot 10, 11 extend in a direction being angled +45° in relation to the reference plane 18.
  • Each first and second slot 10, 11 is, on both its sides, defined by linear first and second guide surfaces 32, 22 respectively, wherein said guide surfaces 32, 22 are angled +45° in relation to the reference plane 18.
  • the guide surfaces 32, 22 transform into the end portion 14 from their respective side.
  • the female parts 26 of hydraulic couplings provided on the arm coupling part 1 are resiliently mounted and they are aligned for being coupled in a direction that is perpendicular to the centre axes 17 and angled +45° to the reference plane 18. Both female parts 26 are aligned parallel with the angled slots 10, 11 and their guide surfaces 32, 22 and face in the direction of the entrance openings 12, 21.
  • the male parts 5 of hydraulic couplings are provided on the implement coupling part 2 are rigidly mounted and they are aligned for being coupled in a direction that is perpendicular to the rods and angled about +45° to the plane defined by the rods 3, 4.
  • the male parts 5 on the same implement plate 6 face in different directions.
  • One male part 5 faces in a direction angled towards the first rod 3, and one male part 5 faces in a direction angled towards the second rod 4.
  • the second embodiment of the present invention has a locking device for locking the quick coupling in a coupled position.
  • the locking device according to Fig. 12 differs form the locking device described with reference to Fig. 11 above only in that the locking element 28 presses the first rod 3 in a different direction in order to urge it against the end portions 14 of the first slot 10.
  • the arm quick coupling part 1 and the implement coupling part 2 of to the second embodiment of the present invention may be coupled together in a similar way as the arm quick coupling part 1 and the implement coupling part 2 of the first embodiment of the present invention, which has been described above.
  • One difference is though that, in the beginning of the coupling action, the arm quick coupling part 1 has to be carefully moved and pivoted back and forth while it is being brought closer to the implement coupling part 2 until the first and second rods 3, 4 are received in the entrance openings 12, 21 respectively. In this position, the arm quick coupling part 1 is fixed in its angular position in relation to the implement quick coupling part 2.
  • the pair of female parts 26 of the hydraulic coupling provided on the arm coupling part 1 are aligned with one pair of male parts 5 of the hydraulic coupling which pair is provided on the implement quick coupling part 2 facing towards the first rod 3. If necessary, the position of the arm quick coupling part 1 can be adjusted by adjusting the adjustment screws 31.
  • the arm quick coupling part 1 is moved bringing the female 26 and male parts 5 together in a linear direction that is perpendicular to the rods 3, 4 and angled +45° to the plane of the rods 3, 4.
  • the arm coupling part 1 is guided by the first rod 3 abutting against the linear guide surfaces 32 of each first slot 10, and by the second rod 4 abutting against the linear guide surfaces 22 of each second slot 11.
  • the arm quick coupling part 1 is kept in the correct position in the longitudinal direction of the rods 3, 4 by the adjustment screws 31 abutting against the arm plates 7. Consequently, it is hereby ensured that the previously aligned hydraulic coupling parts 5, 26 are coupled in a linear direction minimizing the risk for damaging the coupling parts 5, 26.
  • the quick coupling according to the second embodiment can advantageously be coupled together in a single, linear movement.
  • the slots 10, 11 have to be machined within strict tolerances for avoiding jamming of the rods 3, 4.
  • the strict demand on tolerances is limited to the end portions 14.
  • the arm coupling part 1 is also capable of being coupled both ways.
  • a third embodiment of the present invention is shown.
  • the first slots 10 are adapted for cooperation with the first rod 3 and the second slots 11 are adapted for cooperation with the second rod 4.
  • the slots 10, 11 all have a semi-circular end portion 14.
  • the centre axes 17 of the end portions 14 define a reference plane 18.
  • Each first slot 10 includes an entrance opening 12 lying in a plane being essentially parallel to the reference plane 18.
  • a guide surface 13, which defines one of the sides of each slot 10, connects the opening 12 with the end portion 14.
  • the guide surface 13 has a curved part adjacent to the opening 12, which curved part transforms into a linear part adjacent to the end portion 14.
  • the curved part curves approximately 180° from the entrance opening 12 to the linear part.
  • the linear part is angled -45° in relation to the reference plane 18.
  • a linear surface 32 being essentially parallel to the linear part of the guide surface 13 connects to the end portion 14 and extends to the entrance opening 12.
  • Each second slot 11 includes an entrance opening 21 lying in a plane being essentially perpendicular to the reference plane 18, though directed in opposite direction to the entrance openings 12 of the first slots 10.
  • Each second slot 11 extend in a direction being angled -45° in relation to the reference plane 18.
  • Each second slot 11 is, on both its sides, defined by linear second guide surfaces 22 being angled -45° in relation to the reference plane 18.
  • the second guide surfaces 22 transform into the end portion 14 from their respective side.
  • the linear surface 32, the linear part of guide surface 13 of the first slots 10, the guide surfaces 22 of the second slots 11 all are parallel and angled -45° in relation to the reference plane 18.
  • the female parts 26 of hydraulic couplings provided on the arm coupling part 1 are resiliently mounted and they are aligned for being coupled in a direction that is perpendicular to the centre axes 17 and angled -45° to the reference plane 18. Both female parts 26 are aligned parallel with said parallel surfaces of the slots 10, 11 and face in the direction of the entrance openings 21 of the second slots 11.
  • the male parts 5 of hydraulic couplings are provided on the implement coupling part 2 are rigidly mounted and they are aligned for being coupled in a direction that is perpendicular to the rods and angled about -45° to the plane defined by the rods 3, 4.
  • the male parts 5 on the same implement plate 6 face in different directions.
  • One male part 5 faces in a direction angled towards the first rod 3, and one male part 5 faces in a direction angled towards the second rod 4.
  • the second embodiment of the present invention has a locking device for locking the quick coupling in a coupled position.
  • the locking device according to Fig. 13 differs form the locking device described with reference to Fig. 11 above only in that the locking element 28 presses the first rod 3 in a different direction in order to urge it against the end portions 14 of the first slot 10.
  • the arm quick coupling part 1 and the implement coupling part 2 of to the second embodiment of the present invention may be coupled together in a similar way as the arm quick coupling part 1 and the implement coupling part 2 of the first embodiment of the present invention, which has been described above.
  • the second slots 11 have to be inserted between the rods 3, 4 either prior to the first rod 3 being inserted into the entrance opening 12 of the first slots 10 or, alternatively, when the first rod 3 abuts against the first part of the curved part of the first guide surface 13.
  • the second rod 4 is received between the guide surfaces 22 of each second slot 11 at the entrance opening 21, when the first rod 3 reaches the linear parts of the guide surfaces 13 and the linear surface 32. Thereafter the coupling operation is continued as described above with reference to the first and second embodiments.
  • the arm coupling part 1 is also capable of being coupled both ways.
  • the quick coupling according to the third embodiment advantageously has a built in mechanic support in its coupled position. This minimizes the load on the locking device.

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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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Shovels (AREA)
EP20040007260 2004-03-25 2004-03-25 Werkzeugschnellwechselvorrichtung Expired - Lifetime EP1580329B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK04007260T DK1580329T3 (da) 2004-03-25 2004-03-25 Redskabshurtigkoblingsindretning
EP20040007260 EP1580329B1 (de) 2004-03-25 2004-03-25 Werkzeugschnellwechselvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040007260 EP1580329B1 (de) 2004-03-25 2004-03-25 Werkzeugschnellwechselvorrichtung

Publications (2)

Publication Number Publication Date
EP1580329A1 true EP1580329A1 (de) 2005-09-28
EP1580329B1 EP1580329B1 (de) 2013-07-31

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EP (1) EP1580329B1 (de)
DK (1) DK1580329T3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006123982A1 (en) * 2005-05-17 2006-11-23 Roennblom Ahrne Arrangement
EP2186947A1 (de) * 2008-11-14 2010-05-19 SMTPO Societe de Distribution de Materiel De Travaux Publics d'Oucques Schaufel für Baumaschine
EP2233642A1 (de) * 2009-03-23 2010-09-29 Baumaschinentechnik Gesellschaft m.b.H. Schnellkupplung für Baumaschinen
EP2995725A1 (de) * 2014-09-03 2016-03-16 YTF Sweden AB Schnellkupplung zur verbindung eines hydraulisch angetriebenen werkzeugs/arbeitsgeräts an einen bagger und ein mechanisches verbindungselement
DE102014119748A1 (de) * 2014-12-31 2016-06-30 Lehnhoff Hartstahl Gmbh & Co. Kg Schnellwechsler und Adapter einer Schnellwechselvorrichtung

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Publication number Priority date Publication date Assignee Title
US4738463A (en) * 1987-02-24 1988-04-19 Deere & Company Automatically coupling fluid connector for a hitch
FR2676765A1 (fr) * 1991-05-22 1992-11-27 Koehl Jean Marie Dispositif d'accouplement mecanique, hydraulique et electrique de maniere instantanee, automatique, commandee a distance.
WO1993005241A1 (en) 1991-09-06 1993-03-18 John Teodor Sonerud A device for quick connection of hydraulic tubings
DE19706998A1 (de) * 1996-02-23 1997-08-28 Thure Ekman Kupplungsvorrichtung an einer ersten mobilen Einheit sowie zweite Einheit zum Ankoppeln an letztere
US5829337A (en) * 1997-08-28 1998-11-03 Caterpillar Inc. Method and apparatus for coupling a fluid-powered implement to a work machine
WO2002088477A1 (de) * 2001-04-25 2002-11-07 Puehringer Josef Frontlader
WO2003029567A1 (de) * 2001-09-28 2003-04-10 Puehringer Josef Frontlader mit einer automatischen kupplungsvorrichtung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738463A (en) * 1987-02-24 1988-04-19 Deere & Company Automatically coupling fluid connector for a hitch
FR2676765A1 (fr) * 1991-05-22 1992-11-27 Koehl Jean Marie Dispositif d'accouplement mecanique, hydraulique et electrique de maniere instantanee, automatique, commandee a distance.
WO1993005241A1 (en) 1991-09-06 1993-03-18 John Teodor Sonerud A device for quick connection of hydraulic tubings
US5465513A (en) * 1991-09-06 1995-11-14 Sonerud; John T. Device for quick connection of hydraulic tubings
DE19706998A1 (de) * 1996-02-23 1997-08-28 Thure Ekman Kupplungsvorrichtung an einer ersten mobilen Einheit sowie zweite Einheit zum Ankoppeln an letztere
US5829337A (en) * 1997-08-28 1998-11-03 Caterpillar Inc. Method and apparatus for coupling a fluid-powered implement to a work machine
WO2002088477A1 (de) * 2001-04-25 2002-11-07 Puehringer Josef Frontlader
WO2003029567A1 (de) * 2001-09-28 2003-04-10 Puehringer Josef Frontlader mit einer automatischen kupplungsvorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006123982A1 (en) * 2005-05-17 2006-11-23 Roennblom Ahrne Arrangement
EP2186947A1 (de) * 2008-11-14 2010-05-19 SMTPO Societe de Distribution de Materiel De Travaux Publics d'Oucques Schaufel für Baumaschine
FR2938560A1 (fr) * 2008-11-14 2010-05-21 Smtpo Soc De Distrib De Materi Dispositif de liaison destine a un godet pour engin d'excavation
EP2233642A1 (de) * 2009-03-23 2010-09-29 Baumaschinentechnik Gesellschaft m.b.H. Schnellkupplung für Baumaschinen
EP2995725A1 (de) * 2014-09-03 2016-03-16 YTF Sweden AB Schnellkupplung zur verbindung eines hydraulisch angetriebenen werkzeugs/arbeitsgeräts an einen bagger und ein mechanisches verbindungselement
DE102014119748A1 (de) * 2014-12-31 2016-06-30 Lehnhoff Hartstahl Gmbh & Co. Kg Schnellwechsler und Adapter einer Schnellwechselvorrichtung

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EP1580329B1 (de) 2013-07-31

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