EP2744947A1 - Porte-outil - Google Patents

Porte-outil

Info

Publication number
EP2744947A1
EP2744947A1 EP12823343.4A EP12823343A EP2744947A1 EP 2744947 A1 EP2744947 A1 EP 2744947A1 EP 12823343 A EP12823343 A EP 12823343A EP 2744947 A1 EP2744947 A1 EP 2744947A1
Authority
EP
European Patent Office
Prior art keywords
holder
connecting devices
guide means
disposed
tool
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.)
Withdrawn
Application number
EP12823343.4A
Other languages
German (de)
English (en)
Other versions
EP2744947A4 (fr
Inventor
Andreas Andersson
Christer Lennartsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andersson Andreas
LENNARTSSON, CHRISTER
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2744947A1 publication Critical patent/EP2744947A1/fr
Publication of EP2744947A4 publication Critical patent/EP2744947A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation
    • 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
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators

Definitions

  • the present invention relates to a holder for a tool on a forestry machine, comprising hydraulic and mechanical connecting devices, the holder being mechanically lockable and releasable by remote control.
  • forestry machines employ different tools for different tasks, for example tools for harvesting and trimming trunks, cutting tools and gripping tools for brushwood. According as the machine alternates between different working tasks, a change of tool is naturally required. Such changes may unfortunately be complex and time-consuming manoeuvres, at the same time as they require manual action, and the driver of the forestry machine must dismount from the driver's cab on tool change, which may be a drawback for example in inclement weather. Otherwise, the loss of time on tool change is probably the greatest drawback, but in addition there is also the risk that the machine operator fails to carry out a working phase on tool change.
  • the object forming the basis of the present invention will be attained if the tool holder intimated by way of introduction is characterised in that the remaining connecting devices are also lockable and releasable by remote control.
  • FIG. 1 is a side elevation of an arm included in a forestry machine, a tool holder and a tool;
  • Fig. 2 is an exploded view of a holder according to the present invention.
  • Figs. 3a and b are side elevations from two angles of the holder according to the invention in an open state
  • Figs. 4a and b are side elevations corresponding to those of Figs. 3 a and b of the holder in a locked state.
  • Fig. 1 shows a part of a forestry machine, which includes an arm 1 on which is mounted a rotator 2 which is rotary about its own axis. On the rotator 2 there is disposed a holder 3 by means of which a harvester unit 4 is releasably secured to the arm 1 of the forestry machine.
  • the harvester unit 4 which is shown in Fig. 1 is but one example of a tool which may be fixed to the arm 1 using the holder 3.
  • the tool may be of any other type, for example a tool for collecting and bundling branches and brushwood.
  • the harvester unit 4 which is shown in Fig. 1 is disposed to carry out felling of trees, trimming of the felled trunks and cutting them into desired lengths.
  • Fig. 2 shows the rotator 2 and the holder 3 in exploded view.
  • the holder is divisible into two parts, an upper part 3a and a lower part 3b.
  • Each part 3a, 3b of the holder 3 has hydraulic connecting devices together with connecting devices for electric power and data transfer.
  • the electric connecting devices are six-poled and watertight in construction.
  • All connecting devices 6 for hydraulics, electric power and data transfer are disposed centrally in the holder parts 3a, 3b, which has numerous advantages.
  • rotation of the holder 3 is facilitated, since the lines and conductors on rotation are simply twisted about themselves, which implies that only a limited extra length must be provided for the lines and conductors up to the connecting devices 6, so as not to prevent rotation or cause damage to lines, conductors or connecting devices.
  • the other advantage inherent in central positioning is that encapsulation and protection of the connecting devices 6 are facilitated.
  • the guide means 7a, 7b are in the form of hollow straight blocks, where the outer guide means 7a displays slightly larger dimensions than the inner guide means 7b, so that the outer guide means 7a is slideably mountable outside the inner guide means.
  • the outer dimensions of the inner guide means 7b thus correspond largely to the inner dimensions of the outer guide means 7a, so that the correspondence in configuration between the inner and the outer guide means 7a, 7b results in an alignment of the connecting devices 6 in the upper part 3a of the holder and the lower part thereof 3b, respectively, so that these are interconnected at the same time as the guide means 7a, 7b are brought together.
  • This gripping edge 8 has, on the one hand, the purpose of limiting the movement of the upper part 3 a of the holder in relation to its lower part 3 b and, on the other hand, the purpose of forming a part of the locking of the holder 3.
  • the gripping edge 8 is disposed at such a height around the lower guide means 7b that, when the upper guide means 7a has been brought into contact with the gripping edge 8, the connecting devices 6 for hydraulics, electric power and data transfer have also been interconnected.
  • the gripping members 5 are moved on the upper part 3 a of the holder into engagement with the gripping edge 8 on that side which is turned to face away from the upper part 3 a of the holder.
  • the gripping members 5 grasp about the gripping edge 8 in a position beyond the edge.
  • the gripping members 5 prevent a movement in the longitudinal direction of the guide means 7a, b, i.e. in their direction of interconnection.
  • the gripping members 5 unite the holder 3 together as a single unit.
  • the tool 4 is placed on a substrate, for example the ground or the load platform of a truck or a trailer.
  • the substrate need not be either horizontal or flat, which implies that the upper part of the tool with the lower part 3b of the holder 3 may be directed in any optional direction, the only precondition being that a space surrounding the holder part 3b is free so that this is accessible.
  • the arm 1 and the rotator 2 are aligned so that the upper part 3 a and the lower part 3b of the holder come into position in register with one another along a substantially straight line.
  • the upper part 3 a of the holder with the guide means 7a approaches the lower part 3b of the holder and its guide means 7b in an approximately linear movement in the longitudinal direction of the guide means 7a, 7b, which thus is the direction of interconnection of the guide means 7a, 7b. If, when the guide means 7a, 7b are located in register with one another, it proves that they are slightly offset transversely of the direction of interconnection or slightly twisted in relation to one another, an additional fine adjustment of the upper part 3a of the holder may need to be carried out.
  • the rotator 2 Since the rotator 2 is disposed on the arm 1 on the forestry machine, it is possible for the driver of the forestry machine to guide and adapt the position of the upper part 3 a of the holder to a considerable extent. Yet a further advantage inherent in the rotator 2 being disposed between the arm 1 and the upper part 3a of the holder is that only one rotator 2 need be used, which is an advantage in economic terms compared with if a separate rotator must be provided on each individual tool. When a sufficient adaptation has been made of the upper part 3 a of the holder in relation to the position of the lower part 3b of the holder, the upper guide means 7a may be mounted on the lower guide means 7b.
  • the connecting devices 6 which are disposed inside the guide means 7a, 7b fit together, since the adaption of the mutual positions of the guide means 7a, 7b also implies an automatic adaptation of the mutual positions of the coupling devices 6.
  • the guide means 7a, 7b are moved together and any possible further alignment of them takes place on the mutual sliding of the guide means 7a, 7b.
  • the parts 3a, 3b of the holder are brought together and the mechanical interconnection simultaneously entails, and in the same movement, an automatic mating of the connecting devices 6 for hydraulics, electric power and data transfer.
  • no separate mating of hydraulics, electric power or data transfer is needed, but all operations take place automatically on interconnection of the two parts 3a, 3b of the holder 3.
  • the driver of the forestry machine need not leave the driver's cab, and the risk that any connecting operation is missed is thereby obviated.
  • the gripping members 5 beyond the gripping edge 8 are locked with the aid of the operating cylinders 9 disposed on the gripping members 5, the cylinders being, in the preferred embodiment, hydraulic. All connections 6 are held in place when the gripping members 5 have fixedly locked the guide means 7a, 7b in relation to one another. In addition, the connections 6 are protected from external action.
  • the locking of the gripping members 5 is retained even in the event of operational loss, such as pressure drop in the hydraulic lines, and in the event of a power failure.
  • Figs. 3a and 3b show the gripping members 5 in their open position before the guide means 7a and 7b have been united.
  • the rotator 2, the cylinders 9 in the gripping members 5, the guide means 7a and b and also the gripping edge 8 are visible.
  • Figs. 4a and 4b show the holder 3 when this is in its locked state.
  • the guide means 7a, 7b in a manner other than that illustrated in the above described embodiment.
  • the guide means 7a, 7b could be of other configuration than the rectangular configuration which is shown in the above embodiment. Above all, this applies to the cross sectional configuration.
  • the guide means 7a, 7b display such cross sectional configuration that they can only be brought together in one position, so that an automatic guiding into position also takes place of the connecting devices for hydraulics, electric power and data transfer, and the risk of faults is eliminated.
  • the guide means 7a, 7b may also have a more open design and fundamentally only consist of rails which extend in the converging direction, but one drawback inherent in this design is that the connecting members 6 for hydraulics, electricity and data transfer are not as well protected from external action as in the above-described embodiment.
  • the mechanical locking 5, 8 could be executed in some other way which is previously known to a person skilled in the art, but should be designed in such a manner that it does not release in the event of a possible operational loss, such as a power failure or pressure loss in the hydraulic system.
  • a possible operational loss such as a power failure or pressure loss in the hydraulic system.
  • connecting devices 6 for data transfer It is naturally also possible to transfer the data in wireless mode, which implies that no cable for this purpose would be needed.
  • the present invention may be modified such that the connecting devices 6 inside the guide means 7a, 7b only relate to hydraulics and/or electric power.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

L'invention concerne un porte-outil (3) pour un outil (4) sur une machine d'exploitation forestière comportant des dispositifs de raccordement hydrauliques et mécaniques. Le porte-outil (3) est en mesure d'être verrouillé et libéré de manière mécanique par télécommande. Les autres dispositifs de raccordement sont également en mesure d'être verrouillés et libérés par télécommande.
EP12823343.4A 2011-08-18 2012-08-10 Porte-outil Withdrawn EP2744947A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1100597A SE536309C2 (sv) 2011-08-18 2011-08-18 Verktygsfäste för skogsmaskin
PCT/SE2012/000115 WO2013025141A1 (fr) 2011-08-18 2012-08-10 Porte-outil

Publications (2)

Publication Number Publication Date
EP2744947A1 true EP2744947A1 (fr) 2014-06-25
EP2744947A4 EP2744947A4 (fr) 2015-01-28

Family

ID=47715307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12823343.4A Withdrawn EP2744947A4 (fr) 2011-08-18 2012-08-10 Porte-outil

Country Status (3)

Country Link
EP (1) EP2744947A4 (fr)
SE (1) SE536309C2 (fr)
WO (1) WO2013025141A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2899379T3 (es) * 2017-04-12 2022-03-11 Epsilon Kran Gmbh Accionamiento de rotación
SI25473A (sl) * 2017-07-06 2019-01-31 Tajfun Planina Proizvodnja Strojev D.O.O. Za dinamično tehtanje bremena prirejena pritrdilna enota prijemala na roki hidravličnega divgala
DE102020126143A1 (de) * 2020-10-06 2022-04-07 Lasco Heutechnik Gmbh Greifsystem sowie Kran
DE102022103669A1 (de) * 2022-02-16 2023-08-17 Holp Gmbh Drehvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6301811B1 (en) * 2000-07-28 2001-10-16 Gilmore Industries, Inc. Coupler for a heavy-duty machine
EP1448471A1 (fr) * 2001-11-26 2004-08-25 Cranab Ab Dispositif pour monter un outil rotatif

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914523C1 (fr) * 1989-05-02 1990-04-26 Deutsche Gesellschaft Fuer Wiederaufarbeitung Von Kernbrennstoffen Mbh, 3000 Hannover, De
SE524668C2 (sv) * 2003-01-30 2004-09-14 Oilquick Ab Redskapsfäste med omkopplingsorgan
US7877906B2 (en) * 2006-01-13 2011-02-01 Ramun John R Modular system for connecting attachments to a construction machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6301811B1 (en) * 2000-07-28 2001-10-16 Gilmore Industries, Inc. Coupler for a heavy-duty machine
EP1448471A1 (fr) * 2001-11-26 2004-08-25 Cranab Ab Dispositif pour monter un outil rotatif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013025141A1 *

Also Published As

Publication number Publication date
WO2013025141A8 (fr) 2014-04-10
SE1100597A1 (sv) 2013-02-19
SE536309C2 (sv) 2013-08-13
EP2744947A4 (fr) 2015-01-28
WO2013025141A1 (fr) 2013-02-21

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