EP0578447A1 - Kupplungsvorrichtung für Werkzeuge - Google Patents

Kupplungsvorrichtung für Werkzeuge Download PDF

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Publication number
EP0578447A1
EP0578447A1 EP93305206A EP93305206A EP0578447A1 EP 0578447 A1 EP0578447 A1 EP 0578447A1 EP 93305206 A EP93305206 A EP 93305206A EP 93305206 A EP93305206 A EP 93305206A EP 0578447 A1 EP0578447 A1 EP 0578447A1
Authority
EP
European Patent Office
Prior art keywords
latch
coupler
locking
latched
implement
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Withdrawn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
EP93305206A
Other languages
English (en)
French (fr)
Inventor
Steven Scholey
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.)
Fermec Manufacturing Ltd
Original Assignee
Fermec Manufacturing Ltd
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 Fermec Manufacturing Ltd filed Critical Fermec Manufacturing Ltd
Publication of EP0578447A1 publication Critical patent/EP0578447A1/de
Withdrawn legal-status Critical Current

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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
    • E02F3/3622—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
    • E02F3/3663—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

  • This invention relates to couplers for attaching implements, such as digging or loading buckets or fork tines, to the end of a support member or members of, for example, a digging, loading or handling machine.
  • an implement attachment coupler for attaching an implement having first and second vertically spaced coupling means to a machine, the coupler including:
  • An advantage of an implement attachment coupler according to the present invention is that the latch means is moved to both open and closed positions by contact with the implement coupling means using the weight of the implement. By utilising the weight of the implement to move the latch means, even when the coupler is caked with mud, as often occurs with some forms of implement, the latch means will operate correctly.
  • a further advantage of an implement attachment coupler according to the present invention is that the latch means is held in a latched position by a bias means, via a locking means. Thus even in the event of an hydraulic failure the implement will be held securely by the coupler.
  • the bias means also biases the locking means into a position in which it is capable of holding the latch means in the open position in addition to holding it in the latched position.
  • the first receiving means comprises a pair of upper upwardly opening slots and the second receiving means comprises a pair of lower horizontally opening slots.
  • the latch means comprises a pair of latch members pivotally mounted adjacent either each of the first or each of the second receiving means, and the locking means comprises a pair of locking members each pivotally mounted adjacent a respective latch member.
  • Each locking member may include first and second recesses with a threshold therebetween, and the respective latch member may include a formation for engagement in the first recess when the latch member is in the open position and for engagement in the second recess when in the latched position.
  • the locking means may be in the same position when holding the latch means in the latched and open positions.
  • the bias means may comprise a spring and the release means may comprise a single-acting hydraulic ram.
  • the spring may be located within the cylinder of the hydraulic ram.
  • FIG. 1 the right half of an implement attachment coupler 10 for use in attaching a digging bucket to a tractor mounted digger is shown viewed from the centre of the coupler.
  • the coupler 10 includes a body 12 having pairs of upper and lower slots 23, 24.
  • a pair of latch members 13 is provided adjacent the lower slots 24 with a locking member 14 provided adjacent to each latch member 13.
  • a single-acting hydraulic ram 15 is provided to operate the locking members 14.
  • Figures 1, 2 and 3 show the right side of the coupler 10, the coupler 10 is symmetrical about a plane parallel with that of the Figures running lengthwise through the ram 15 and thus the right side is a mirror image of the left side.
  • the coupler 10 is attached to a dipper 60 and double-acting hydraulic ram 61, by pins 62, 63 inserted through bossed holes 19, 20.
  • the coupler 10 is manipulated by extension and retraction of the ram 61.
  • Bucket 64 has spaced plates 65 on one edge with upper and lower coupling means in the form of pins 66, 67 located therebetween. Pins 66 and 67 are received in slots 23 and 24 of coupler 10 to attach the bucket 64 to the dipper 60 as will be described in detail below.
  • the body 12 of coupler 10 consists of a back plate 16, with, welded to its rear face, a pair of vertically disposed rear plates 17, and, welded to its front face, a pair of vertically disposed heavy duty fore plates 18.
  • the back plate 16 has a centrally located hole 16a through which the ram 15 passes, and a pair of ram mounting lugs 16b welded to its rear face adjacent the hole 16a.
  • the rear plates 17 include upper and lower bossed holes 19, 20 and aligned holes 22.
  • the fore plates 18 have formed in them upper receiving means, in the form of upwardly opening slots 23, lower receiving means, in the form of horizontally opening slots 24, and two pairs of aligned holes 25 and 26.
  • each latch member 13 is of a generally hook shape, the hook defining a slot 27 with inner and outer sides 27a and 27b respectively.
  • Each latch member 13 also includes a hole 28 and a nose 29 formed adjacent the inner slot side 27a and is pivotally connected to the inner face of the respective fore plate 18, of the body 12, by a pivot pin 30 located in the respective aligned holes 26 and 28.
  • each locking member 14 consists of inner and outer plates 31 and 32 respectively, overlapped and welded together.
  • the inner plate 31 includes a hole 33.
  • the outer plate 32 includes a hole 34, a recess 35 and a clamping face 36 formed along edge 37 overlying the inner plate 31 with a threshold 38 therebetween.
  • Each locking member 14 is pivotally connected to the inner face of the respective fore plate 18 by a pivot pin 39 located in the respective aligned holes 25 and 34.
  • Figure 6 shows the right-hand locking member, as viewed in Figures 1, 2 and 3, the left-hand locking member being a mirror image.
  • the single-acting hydraulic ram 15 consists of a cylinder 40 with cavities 41a and 41b separated by a piston 42 which is movable between first and second ends 43 and 44 respectively.
  • the piston 42 has a rod 45 which carries a connector 49 with a mounting hole 50.
  • the cavity 41a contains a biasing means in the form of a spring 46, to bias the piston 42, and thus the rod 45, to the second end 44.
  • Cavity 41b is connected via a coupling 47 to a hydraulic fluid circuit (not shown) which includes a source of pressurised fluid and an operator controlled fluid flow valve for controlling the supply to and venting of pressurised fluid from cavity 41b.
  • a hole 48 is formed in the cylinder 40 for pivotal mounting of the ram 15 on the mounting lugs 16b on the rear face of the back plate 16 by a pivot pin 51 through aligned holes in the lugs 16c.
  • the ram 15 is connected to the two locking members 14 by a pivot pin 52 which extends through both holes 33 and hole 50.
  • the lower coupling means 67 contact the inner sides 27a of the slots 27 in the latch members 13 and the weight of the bucket 64 acts to pivot the latch members 13 about the pivot pins 30 in a clockwise direction (as viewed in Figures 1 and 8) to move the latch members from the Figure 1 position towards the Figure 2 position.
  • the noses 29 force the respective locking members 14 to pivot, against the bias of the spring 46 applied via the rod 45, in an anticlockwise direction and the noses 29 ride along the edges 37 of the locking members 14 as they move from recesses 35 to clamping faces 36.
  • the spring 46 acts via rod 45 to pivot the locking members 14 back in a clockwise direction, with the faces 27a engaged on the clamping faces 36, to the latched position shown in Figure 2.
  • the tractor operator When it is desired to uncouple the bucket 53 from the coupler 10 the tractor operator operates the fluid flow valve to supply pressurised hydraulic fluid into cavity 41b in the cylinder 40.
  • the fluid acts against the spring 46 and moves the piston 42 such that the rod 45 is withdrawn into the cylinder 40.
  • This rotates the locking members 14 in an anticlockwise direction as viewed in Figure 2, to the position shown in Figure 3 in which the latch members 13 are released.
  • the coupler 10 is then manipulated such that the lower coupling means 67 contact the outer sides 27b of the slots 27 thus forcing the latch members 13 to rotate about the pivot pins 30, in an anticlockwise direction as viewed in Figure 3, to the open position.
  • the lower coupling means 67 are thus able to exit the slots 24.

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)
  • Agricultural Machines (AREA)
EP93305206A 1992-07-04 1993-07-02 Kupplungsvorrichtung für Werkzeuge Withdrawn EP0578447A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929214255A GB9214255D0 (en) 1992-07-04 1992-07-04 Implement attachement coupler
GB9214255 1992-07-04

Publications (1)

Publication Number Publication Date
EP0578447A1 true EP0578447A1 (de) 1994-01-12

Family

ID=10718220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93305206A Withdrawn EP0578447A1 (de) 1992-07-04 1993-07-02 Kupplungsvorrichtung für Werkzeuge

Country Status (2)

Country Link
EP (1) EP0578447A1 (de)
GB (2) GB9214255D0 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671513A1 (de) * 1994-03-11 1995-09-13 Societe A Responsabilite Limitee : Morin Freres Vorrichtung zum Entriegeln eines drehbaren Nockens insbesondere für Schaufellader
WO1995033895A1 (en) * 1994-06-07 1995-12-14 John Mcgrath A quick-release hitch
FR2724957A1 (fr) * 1994-09-26 1996-03-29 Radec Sarl Coupleur a verrouillage autobloquant pour l'accouplement d'outils sur engin de chantier
WO2000014342A1 (en) * 1998-09-08 2000-03-16 Doreen Jacqueline Miller Quick coupler for bucket excavators
WO2000014343A1 (en) * 1998-09-08 2000-03-16 Doreen Jacqueline Miller Coupler for bucket excavators
WO2002088476A1 (en) * 2001-05-02 2002-11-07 Bruce Archibald Short Connection apparatus
EP1288378A1 (de) * 2001-08-31 2003-03-05 Ab Alö-Maskiner Sicherheitsvorrichtung für einen Frontlader
FR2830551A1 (fr) * 2001-10-08 2003-04-11 A C D I Dispositif d'attache rapide forme d'un caisson dans lequel pivote un mecanisme de verrouillage liberable par une gachette
FR2900168A1 (fr) * 2006-04-21 2007-10-26 Morin Soc Par Actions Simplifi Coupleur pour engin de travaux a deverrouillage mixte
AT503692B1 (de) * 2006-05-19 2011-11-15 Michael Ing Winkelbauer Kupplungseinrichtung
FR2994576A1 (fr) * 2012-08-14 2014-02-21 Marcel Morin Ensemble de fixation d'un outil, notamment d'un godet, a un engin de chantier
WO2015030282A1 (ko) * 2013-08-30 2015-03-05 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 퀵 커플러

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29810751U1 (de) 1998-06-16 1998-09-17 Atlas Weyhausen GmbH, 27751 Delmenhorst Arbeitswerkzeug, insbesondere Greifer, für ein Arbeitsgerät wie einen Bagger
AU723305B1 (en) * 1999-03-03 2000-08-24 Barry Koster Adaptor hitch with locking pin
IES20040192A2 (en) * 2004-03-26 2005-10-19 Patrick Mccormick An excavator tool quick attachment device
CA2631107C (en) * 2005-12-12 2014-08-05 Positti, Nicole Elizabeth Safety device for hydraulic hitch assembly
GB2446138A (en) * 2007-02-02 2008-08-06 Miller Uk Ltd Coupler for an excavator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417617A1 (fr) * 1978-02-15 1979-09-14 Caterpillar Tractor Co Dispositif d'accouplement mecanique a separation rapide
WO1988001322A1 (en) * 1986-08-18 1988-02-25 Paul Owen Jones Improved hitch
GB2205299A (en) * 1987-06-04 1988-12-07 William John Balemi Connector for mounting an implement on a vehicle
US4871292A (en) * 1987-12-17 1989-10-03 Richard Milanowski System for attaching and locking material handling tools to a dipper boom

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177674B (en) * 1985-07-10 1988-10-05 Bamford Excavators Ltd Mounting a working implement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417617A1 (fr) * 1978-02-15 1979-09-14 Caterpillar Tractor Co Dispositif d'accouplement mecanique a separation rapide
WO1988001322A1 (en) * 1986-08-18 1988-02-25 Paul Owen Jones Improved hitch
GB2205299A (en) * 1987-06-04 1988-12-07 William John Balemi Connector for mounting an implement on a vehicle
US4871292A (en) * 1987-12-17 1989-10-03 Richard Milanowski System for attaching and locking material handling tools to a dipper boom

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671513A1 (de) * 1994-03-11 1995-09-13 Societe A Responsabilite Limitee : Morin Freres Vorrichtung zum Entriegeln eines drehbaren Nockens insbesondere für Schaufellader
FR2717198A1 (fr) * 1994-03-11 1995-09-15 Morin Freres Dispositif pour déverrouiller une came rotative.
WO1995033895A1 (en) * 1994-06-07 1995-12-14 John Mcgrath A quick-release hitch
GB2303614A (en) * 1994-06-07 1997-02-26 John Mcgrath A quick-release hitch
GB2303614B (en) * 1994-06-07 1999-01-13 John Mcgrath A quick-release hitch
FR2724957A1 (fr) * 1994-09-26 1996-03-29 Radec Sarl Coupleur a verrouillage autobloquant pour l'accouplement d'outils sur engin de chantier
US6422805B1 (en) 1998-09-08 2002-07-23 Gary Miller Quick coupler for bucket excavators
WO2000014343A1 (en) * 1998-09-08 2000-03-16 Doreen Jacqueline Miller Coupler for bucket excavators
WO2000014342A1 (en) * 1998-09-08 2000-03-16 Doreen Jacqueline Miller Quick coupler for bucket excavators
US6481124B1 (en) 1998-09-08 2002-11-19 Doreen Jacqueline Miller Quick coupler for bucket excavators
US6625909B1 (en) 1998-09-08 2003-09-30 Doreen Jacqueline Miller Coupler for bucket excavators
WO2002088476A1 (en) * 2001-05-02 2002-11-07 Bruce Archibald Short Connection apparatus
EP1288378A1 (de) * 2001-08-31 2003-03-05 Ab Alö-Maskiner Sicherheitsvorrichtung für einen Frontlader
FR2830551A1 (fr) * 2001-10-08 2003-04-11 A C D I Dispositif d'attache rapide forme d'un caisson dans lequel pivote un mecanisme de verrouillage liberable par une gachette
FR2900168A1 (fr) * 2006-04-21 2007-10-26 Morin Soc Par Actions Simplifi Coupleur pour engin de travaux a deverrouillage mixte
WO2007122317A1 (fr) * 2006-04-21 2007-11-01 Morin S.A.S. Coupleur pour engin de travaux a deverrouillage mixte
AT503692B1 (de) * 2006-05-19 2011-11-15 Michael Ing Winkelbauer Kupplungseinrichtung
FR2994576A1 (fr) * 2012-08-14 2014-02-21 Marcel Morin Ensemble de fixation d'un outil, notamment d'un godet, a un engin de chantier
WO2015030282A1 (ko) * 2013-08-30 2015-03-05 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 퀵 커플러

Also Published As

Publication number Publication date
GB9214255D0 (en) 1992-08-19
GB2268464B (en) 1995-11-22
GB9313467D0 (en) 1993-08-11
GB2268464A (en) 1994-01-12

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