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
  • E02F3/3654—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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
  • B66C13/00—Other constructional features or details
  • B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
  • B66C13/14—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices to load-engaging elements or motors associated therewith
• • 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
  • E02F3/3627—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 longitudinal 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
  • E02F3/28—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
  • E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
• • 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
• • 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
  • E02F9/20—Drives; Control devices
  • E02F9/22—Hydraulic or pneumatic drives
  • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
  • E02F9/2275—Hoses and supports therefor and protection therefor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/002—Couplings of the quick-acting type which can be controlled at a distance
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/56—Couplings of the quick-acting type for double-walled or multi-channel pipes or pipe assemblies

Definitions

• the invention relates to tool bracket for attaching a hydraulic tool to a crane arm.
• the invention also relates to a tool implement including such a tool bracket.
• the invention also specifically relates to a tiltrotator including such a tool bracket.
• a work vehicle such as an excavator
• a crane arm having an outer end for connecting a hydraulic tool such as a tiltrotator, compactor, hydraulic hammer, grapple or the like.
• the work vehicle typically comprises a hydraulic pump and a tank for providing hydraulic fluid to the tool. Hydraulic hoses are arranged along the crane arm and hydraulic couplings are arranged at the outer end of the crane arm.
• US 5 465 513 A discloses an arrangement for quickly coupling a working implement to a heavy-duty machine and simultaneously connecting hydraulic power to the implement.
• the mechanical quick coupling includes a bracket part with two parallel pins, which are to be gripped by engagement portions on an opposed coupler part.
• the hydraulic coupling arrangement on the bracket part is arranged to extend from one of the parallel bars.
• pins define the position of the interaction of coupling such that the arranging of the hydraulic coupling arrangement in a fixed position relative to the pins guarantees correct positioning of the hydraulic coupling arrangement so as to guarantee correct coupling.
• the invention relates to a tool bracket for connecting a hydraulic tool to a crane arm, the tool bracket comprising a first bracket pin and a second bracket pin, which bracket pins are arranged parallel to each other at a distance from each other and are arranged to be connected to a tool coupler that comprises fasteners that are arranged to mate with the bracket pins, wherein the tool bracket further comprises a quick coupling unit comprising at least two hydraulic couplings which extend in parallel to each other along an axial connection direction.
• the tool bracket comprises a bracket plate which extends at a distance from the bracket pin and is fixedly connected to the bracket pins, the bracket plate being provided as a part of a hydraulic tool or to be rigidly attached to a hydraulic tool, wherein the quick coupling unit is arranged on the bracket plate between the first and second bracket pin such that the hydraulic couplings will face the second bracket pin, and wherein the axial connection direction is
• bracket plate provides the possibility of attaching the quick coupling unit in a precise and mechanically advantageous manner. This provides for a construction that will stand over time.
• bracket pins are attached to the bracket plate via at least one mantle portion on each side of the bracket plate.
• the at least one mantle portion on each side of the bracket plate extend substantially parallel with each other and substantially orthogonal with respect to the plane of the bracket plate.
• the bracket pins extend in an axial direction, wherein the axial connection direction of the at least two hydraulic couplings of the quick coupling unit is substantially orthogonal to the axial direction of the bracket pins.
• the quick coupling unit is detachable from the bracket plate, the tool bracket comprising an attachment device for attaching the quick coupling unit to the bracket plate.
• the attachment device may be comprised of screw holes mating with corresponding recesses of the quick coupling unit for attaching and correctly positioning the quick coupling unit on the tool bracket, preferably by means of screws or bolts.
• the tool bracket comprises a leg or legs for holding the quick coupling unit, and wherein the leg or legs are arranged as an integrated part of the bracket plate. This is an embodiment with particularly good mechanical properties in combination with a precise positioning of the quick coupling unit.
• the at least one leg may either be directly connected to the quick coupling or it may comprise attachment means such as screw holes for attachment of the quick coupling unit.
• the quick coupling unit comprises passages for receiving and attaching the at least two hydraulic couplings. This allows for the individual hydraulic couplings to be attached and connected to hydraulic conduits of the tool of the tool bracket at location.
• the passages may be provided with abutment surfaces adapted to interact with shoulders on the least two hydraulic couplings, so as provide a stop for movement in an axial direction of the hydraulic couplings, away from the quick coupling unit of the tool coupler.
• the invention relates to a tool implement that comprises a tool bracket as defined above.
• a tiltrotator which in addition to comprising a tool bracket at an upper side also comprises a tool coupler for attachment of a tool implement at a lower side.
• Fig. 1 is a perspective view of a work vehicle with a crane arm and a hydraulic tool arranged to the crane arm via a tool bracket;
• Fig. 2 is a partly cut perspective view a first embodiment of a tool bracket partly
• Fig. 3 is a perspective view of a tool coupler, a cylinder lock unit and a tool bracket;
• Fig. 4 is a cut perspective view of a tool bracket and a disconnected coupling unit of a tool coupler
• Fig. 5 is a cut perspective view of a tool bracket and an interconnected coupling unit of a tool coupler
• Fig. 6 is a perspective view of a tiltrotator comprising a tool bracket and a tool coupler, to which a tool implement is connected;
• Fig. 7 is a perspective view of a tiltrotator comprising a tool bracket and a tool coupler
• Fig. 8 is a perspective view of a tool bracket with a hydraulic coupling unit in
• Fig. 9 is a cut perspective view of a cylinder lock unit of a tool coupler, with an
• Fig. 10 is a cut perspective view of a tool bracket with a hydraulic coupling unit
• Fig. 11 is a perspective view of a tool bracket according to a second embodiment
• Fig. 12 is a perspective view of the tool bracket and tiltrotator of fig. 1 1 with detached hydraulic coupling unit.
• Fig. 1 shows a work vehicle 100 with a crane arm 101 , to which a tool 102 is connected.
• the tool 102 is a compactor, but it may be any hydraulic tool adapted to be coupled to a crane arm, such as a tiltrotator, compactor, hydraulic hammer, grapple or the like.
• the crane arm 101 is provided with a tool coupler 10 at its outer end for connecting the hydraulic tool 102.
• the hydraulic tool 102 comprises a bracket 1 for attachment to the tool coupler 10.
• a tiltrotator 30 however is arranged between the crane arm 101 and the hydraulic tool 102.
• the tiltrotator 30 also includes a bracket such that it may be arranged to the coupler 10 on the crane arm 101.
• the tiltrotator 30 is provided with a tool coupler, for connection to the hydraulic tool 102 at its lower end.
• the bracket may be arranged either directly on the outer end of the crane arm 101 and/or at the lower end of a tiltrotator 30. This will be further described below with reference to Figs. 6-7.
• a prior art tool bracket 51 is shown in a cut perspective view.
• the prior art tool bracket 51 comprises a first and a second bracket pin 52 and 53 arranged in parallel at a distance from each other.
• the bracket pins 52 and 53 are connected to each other by a frame comprising two mantle portions 56 extending orthogonally with respect to the bracket pins 52 and 53.
• One of the mantle portions 56 has been cut away for visibility reasons.
• the frame is arranged to be attached to a tool.
• a quick coupling unit 54 comprising hydraulic couplings 55 is attached to the second bracket pin 53 via legs 57.
• the legs 57 are welded to the second bracket pin 53 and to the quick coupling unit 54.
• the attachment of the quick coupling unit 54 to the second bracket pin 53 assures that the quick coupling unit 54 is located at a well-defined position with respect of the connection and has, to a certain extent, become a standard in the art.
• the well-defined position makes sure that the connection of the quick coupling unit 54 to a tool coupler with a mating quick coupling unit will be made possible for provision of hydraulic fluid to a tool comprising the tool bracket.
• the construction has its flaws in that it is not very rigid and in that is difficult to correctly position the quick coupling unit 54 by a welding operation, which is normally made by hand.
• the invention involves an improved attachment of a quick coupling unit.
• a tool coupler 10 a cylinder lock unit 20 and a tool bracket 1 are shown as separate parts.
• the cylinder lock unit 20 comprises two lock pins 21 which in operation are arranged to be received in through holes 17 in a base 1 1 that that constitutes the lower portion of the tool coupler 10.
• the tool bracket 1 comprises a first and a second bracket pin 2 and 3, respectively, arranged in parallel at a distance from each other.
• the tool bracket 1 is arranged to be connected to a tool coupler 10, which is typically arranged on the free end of a crane arm, or below a tiltrotator.
• the tool coupler 10 comprises an upper tool coupler end 16 with attachment portions 18 for connection to a crane arm or the like.
• the attachment portions 18 are comprised of through holes adapted to receive holding pins of the crane arm.
• the tool coupler 10 comprises a first engagement portion 12 and a second engagement portion 13 that are arranged to engage with the first and second bracket pins 2 and 3 of a tool bracket 1 , respectively, so as to securely lock the tool bracket 1 to the tool coupler 10.
• the cylinder lock unit 20 which is also separately shown in a cut perspective view in Fig. 9, comprises the quick coupling unit 14 of the coupler 10, which comprises through holes 22 for receiving hydraulic couplings 15.
• the tool bracket 1 has a quick coupling unit 4 that comprises at least two hydraulic couplings 5.
• the quick coupling unit 4 comprises five hydraulic couplings.
• the tool bracket 1 comprises a bracket plate 6 which extends between the bracket pins 2 and 3 and is fixedly connected to the bracket pins 2 and 3 and is arranged to be part of a hydraulic tool implement or to be rigidly attached to a hydraulic tool implement.
• the tool bracket 1 is a separate part intended to be attached to an upper portion of a tool implement, such as a tiltrotator, a digger, bucket, pallet loader or the like.
• the shown tool bracket 1 further comprises a lubrication connector 9 for connection to a connectable lubrication dispenser 19 (Shown in Fig. 2) arranged on the tool coupler 10.
• a connectable lubrication dispenser 19 Shown in Fig. 2
• This connection assures that lubrication fluid is provided to the tool attached to the tool bracket.
• the lubrication connector 9 is arranged on upper portion of the quick coupling unit 4.
• the lubrication connector 9 faces upwards orthogonally with respect to the extension of the plane P of the bracket plate 6.
• the act of attaching the tool bracket 1 to the tool coupler 10 is performed by manoeuvring the tool coupler 10 so as to firstly engage the first engagement portion 12 of the tool coupler 10 with the first bracket pin 2 of the tool bracket 1.
• the connectable lubrication dispenser 19 will be positioned above, but not in contact with, the lubrication connector 9.
• the second engagement portion 13 is lowered so as to arrive at a position in contact with the second bracket pin 3.
• contact and connection is achieved between the connectable lubrication dispenser 19 and the lubrication connector 9 as the second engagement portion 13 is lowered.
• the cylinder lock unit 20 is manoeuvred such that the two lock pins 21 will protrude through the through holes 17 of the tool coupler 10 and pass under the second bracket pin 3 to securely lock the tool bracket 1 to the tool coupler 10.
• the hydraulic connection between the quick coupling units 4 and 14 is accomplished simultaneously as the two lock pins 21 are secured beneath the second bracket pin 3.
• Fig. 2 the tool coupler 10 is shown with both the first and the second engagement portions 12 and 13, respectively, positioned in contact with the first and the second bracket pin 2 and 3, respectively.
• the two lock pins 21 of the cylinder lock unit 20 are positioned in an unlocked position and the quick coupling unit 14 of the tool coupler 10 is hence in a disconnected position with respect to the quick coupling unit 4 of the tool bracket 1.
• Fig. 2 only one of the two lock pins 21 is shown, barely visible at the distant end of the cylinder lock unit 20. In the shown position, where the couplings 5 and 15 of the respective quick coupling units are not connected, the lock pins 21 , which are also part of the cylinder lock unit 20, are not in a fully secured position below the second bracket pin.
• the quick coupling unit 4 is arranged on the bracket plate 6 between the first and second bracket pins 2 and 3.
• the bracket plate 6 is shaped as sheet, specifically a relatively thick sheet, wherein the sheet extends in a plane P, which is parallel to an axial extension A B of the bracket pins 2 and 3.
• the quick coupling unit 4 is positioned such that the hydraulic couplings 5 will face the second bracket pin 3, and wherein an axial connection direction Ac of the hydraulic couplings 5 of the quick coupling unit 4 is substantially parallel to the plane P of the bracket plate 6.
• the hydraulic couplings 5 of the quick coupling unit 4 are arranged in parallel with each other along the axial connection direction A c .
• the axial connection direction Ac of the hydraulic couplings 5 of the quick coupling unit 4 is substantially orthogonal to the axial extension A B of the bracket pins 2 and 3.
• the quick coupling unit 4 will be located in the same position as the quick coupling unit of the prior art bracket 51 shown in Fig. 10. Namely, this position will make sure that the quick coupling unit 4 will mate with a quick coupling unit of a conventional tool coupler so that a tool comprising such a bracket may be utilised on a conventional tool coupler.
• a mantle portion 8 is arranged at each side of the bracket plate 6 and connects the sides of bracket plate 6 to the end portions of the bracket pins 2 and 3, respectively.
• the mantle portion 6 extends along the whole length of the bracket plate 6.
• each mantle portion 8 comprises two portions, wherein each portion supports only one of the bracket pins 2 and 3.
• the mantle portions 8 on opposite sides of the bracket plate 6 are preferably substantially parallel to each other and substantially orthogonal to the plane P of the bracket plate 6.
• Hydraulic conduits 23 are provided and attached to a back end of each hydraulic coupling 15 of the quick coupling unit 14 of the tool coupler 10.
• the hydraulic conduits 23 are typically connected to hydraulic pressures source on the work vehicle.
• the hydraulic conduits 23 are hydraulic hoses arranged along the crane arm to the hydraulic pressures source.
• corresponding hydraulic conduits are connected to the back end of each hydraulic coupling 5 of the quick coupling unit 4 of the tool bracket 1 and connected to the tool comprising the tool bracket.
• the two lock pins 21 of the cylinder lock unit 20 of the shown embodiment will make sure that the quick coupling unit 14 of the tool coupler 10 will move transversely in and out of connection with the quick coupling unit 4 of the tool bracket 1 as the cylinder lock unit 20 is translated between a locking position and a release position.
• the quick coupling unit 14 of the tool coupler comprises at least two hydraulic couplings 15 for connection to corresponding hydraulic couplings 5 of the quick coupling unit 4 of the tool bracket 1.
• the quick coupling unit 14 of the tool coupler 10 is arranged in connection with the cylinder lock unit 20 such that the quick coupling unit 14 will be positioned into a connected position in a movement related to the locking achieved by the positioning of the two lock pins 21 below the second bracket pin 3.
• the connection between the hydraulic couplings 15 of the tool coupler 10 to the hydraulic couplings 5 of the tool bracket 1 demands a high precision and a construction that is adapted to cope with relatively high forces.
• the tool coupler and tool bracket may be used in relatively harsh conditions, in which they may be exposed to dynamic forces of varying types.
• the quick coupling units 4 and 14 need to be arranged to cope with the forces provided by the pressurized hydraulic fluid.
• the pressurized hydraulic fluid will act to separate the hydraulic couplings 5 and 15 from each other. Therefore, the quick coupling units 4 and 14 and the corresponding hydraulic couplings 5 and 15 need to be arranged in a manner that copes with the forces acting during operation and during exposure to ambient operating conditions.
• the tool bracket 1 includes a bracket plate 6. Further, the quick coupling unit 4 of the tool bracket 1 is arranged on the bracket plate 6 of the tool bracket 1. This is advantageous as it provides a robust structure with a well-defined position of the quick coupling unit 4.
• the quick coupling unit 4 is attached to the bracket plate 6 via a leg or two or more legs 7, which are formed as an integrated part of the bracket plate 6.
• two legs 7 are provided.
• a main reason for the increased robustness of the arrangement is that the positioning of the quick coupling unit 4 may be guaranteed with an improved robustness and
• the quick coupling unit 4 of the tool bracket 1 has been arranged on one of the bracket pins in order to guarantee its position with respect to the bracket pins 2 and 3.
• the quick coupling unit 4 is often welded to the second bracket pin 3.
• the attachment device e.g. the leg or legs 7 and the quick coupling unit 4 are machined in the same machining apparatus as the rest of the tool bracket 1 , and specifically attachments for the bracket pins 2 and 3.
• the bracket pins are separately produced and attached to a frame of the tool bracket, preferably by welding, subsequent to machining process.
• the leg or legs 7 may be arranged as an integrated part of the bracket plate 6.
• the leg or legs 7 are machined or casted as an integrated part of the bracket plate 6.
• the bracket plate 6 may be machined or casted as an integrated part of the tool bracket 1 including the mantle portions 8.
• the quick coupling unit 4 may be formed as a plate with recesses or passages 24 for holding the individual hydraulic couplings 5. See below with reference to Fig. 8.
• the quick coupling unit 4 may include abutment surfaces to interact with shoulders on the hydraulic couplings 5 to make sure they are held in place in a first axial direction.
• a circlip 31 may be arranged to secure each hydraulic coupling 5.
• the circlip 31 is preferably arranged at the side of the coupling unit 4 extending away from the quick coupling unit 14 of the tool coupler 10, wherein the shoulder-abutment interaction of the coupling unit 4 and hydraulic couplings 5 are provided on the side facing the quick coupling unit 14 of the tool coupler 10. This is advantageous as the forces are more important in this direction, both during the actual interconnection, but more importantly due to the force provided by the pressurised hydraulic fluid in the couplings.
• the tool bracket comprises arranged on a tiltrotator 30 and comprises an attachment device 32 for attaching the quick coupling unit 4 to the bracket plate 6.
• the attachment device comprises screw holes 34 through the bracket plate 6 mating with corresponding recesses of an attachment portion 33 of the quick coupling unit 4 for attaching and correctly positioning the quick coupling unit 4 on the bracket plate 6 of the tool bracket 1.
• Screws 35 are arranged to be screwed through the recesses of the attachment portion 33.
• the attachment device 32 includes a recessed portion 36 adapted to receive the attachment portion 33 of the quick coupling unit 4.
• attachment device 32 may be machined to the bracket plate 6 of the tool bracket with great precision.
• the attachment device 32 e.g. the screw holes, is advantageously machined in the same machining apparatus as the rest of the tool bracket 1 , and specifically the bracket pins 2 and 3, or the attachments for the bracket pins, if they are separately produced and attached to a frame of the tool bracket.
• This embodiment allows for a user to easily upgrade his tool bracket by arranging a quick coupling unit 4 to the therefore provided attachment device 32 on the bracket plate 6.
• a tiltrotator 30 is illustrated.
• the tiltrotator 30 comprises a tool bracket 1 at its upper end, which tool bracket 1 is coupled to a tool coupler 10 via bracket pins 2’ and 3’ at its upper end, the coupler 10 in turn being arranged at a crane arm ore the like, not shown.
• the tiltrotator 30 comprises a tool coupler 10, which in fig. 6 is connected to a tool implement 102, in the form of a compactor, the tool implement 102 comprising a tool bracket 1.
• Fig. 7 the tiltrotator 30 is illustrated without a coupled tool implement. Instead a tool bracket 1 without an accompanying tool is attached to the coupler 10 of the tiltrotator 30.
• a tool bracket 1 is shown in a perspective view. From this view it is apparent that the quick coupling unit 4 of the tool bracket 1 comprises a front side 25 arranged to face the quick coupling unit 14 of the coupler 10 in operation, see e.g. Fig. 2. Further, the quick coupling unit 4 comprises passages 24 for receiving and attaching the at least two hydraulic couplings 5. In the shown embodiment the quick coupling unit 4 comprises five passages 24, four passages for receiving and attaching hydraulic couplings 5, and one passage for receiving and attaching an additional connector.
• the front side 25 is provided with abutment surfaces 26 adapted to interact with shoulders 28 on the hydraulic couplings 5 to provide stops for movement of the hydraulic couplings 5 in an axial direction thereof, away from the quick coupling unit 14 of the tool coupler 10.
• the abutment surfaces 26 are formed as circular ledges or recesses around the periphery of each passage 24.
• the bracket plate 6 is advantageously provided with strengthening ribs 27 that extend along the bracket plate 6 between the mantle portions 8 in parallel with the bracket pins 2 and 3.
• the legs 7 of the tool bracket 1 are in the shown embodiment extending from one such strengthening rib 27.
• the quick coupling unit 4 is attached to the bracket plate 6 via one leg only, either in connection with a strengthening rib 27 or directly on the bracket plate 6.
• two legs 7 are provided to hold the quick coupling unit 4, which legs 7 are separated from each other by a void 29 between the quick coupling unit 4 and the bracket plate 6.
• the void provides a passage for hydraulic conduits, which in a specific embodiment are arranged to pass through the void, to provide a protected conduit passage.
• the quick coupling unit 4 is attached to the bracket plate 6 via one, two or more legs 7, or the bracket plate 6 is provided with and attachment device such as a clamp or screw holes, for attaching the quick coupling unit 4.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Mining & Mineral Resources (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Shovels (AREA)
• Earth Drilling (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69137846

Family Applications (1)

Country Status (3)

Cited By (1)

Families Citing this family (3)

Family Cites Families (6)

• 2019
  • 2019-01-23 SE SE1950075A patent/SE1950075A1/sv not_active Application Discontinuation
  • 2019-12-13 EP EP19832308.1A patent/EP3914781A1/en not_active Withdrawn
  • 2019-12-13 WO PCT/EP2019/085137 patent/WO2020151876A1/en unknown

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