EP0521560A2 - Pièce de verrouillage - Google Patents

Pièce de verrouillage Download PDF

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Publication number
EP0521560A2
EP0521560A2 EP92201901A EP92201901A EP0521560A2 EP 0521560 A2 EP0521560 A2 EP 0521560A2 EP 92201901 A EP92201901 A EP 92201901A EP 92201901 A EP92201901 A EP 92201901A EP 0521560 A2 EP0521560 A2 EP 0521560A2
Authority
EP
European Patent Office
Prior art keywords
coupling piece
clamping wedge
implement
setting cylinder
connecting plates
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
EP92201901A
Other languages
German (de)
English (en)
Other versions
EP0521560A3 (en
EP0521560B1 (fr
Inventor
Adrianus Matheus Clasina Maria Van Doornmalen
Gertrudis Maria Gerardus De Gier
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.)
Metaalwarenfabriek A P Verachtert BV
Original Assignee
VERACHTERT BV
VERACHTERT BV
Methold s Hertogenbosch BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19859455&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0521560(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by VERACHTERT BV, VERACHTERT BV, Methold s Hertogenbosch BV filed Critical VERACHTERT BV
Priority to DE19929218344 priority Critical patent/DE9218344U1/de
Publication of EP0521560A2 publication Critical patent/EP0521560A2/fr
Publication of EP0521560A3 publication Critical patent/EP0521560A3/en
Application granted granted Critical
Publication of EP0521560B1 publication Critical patent/EP0521560B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F3/3613—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with means for absorbing any play therebetween
    • 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

Definitions

  • the invention relates to a coupling piece for coupling an implement, such as e.g. an excavator bucket, to the end of a jib of an excavator or the like, which coupling piece can be pivotally connected to the jib as well as to a setting cylinder coupled to the jib, whereby the implement is provided with two connecting plates secured to the implement, said connecting plates being provided with recesses for receiving studs forming part of the coupling piece as well as with conical recesses for receiving a clamping wedge associated with the coupling piece.
  • Such a coupling piece is e.g. known from Dutch Patent Application No. 7904335.
  • the clamping wedge is fixed to the coupling piece and drawn into the conical recesses, so as to secure the coupling piece to the implement by means of bolts, which have to be tightened or loosened manually by the operator of the crane for coupling and/or uncoupling the implement.
  • Said coupling and uncoupling of the implement is thus still a time-consuming job, whilst furthermore the bolts constitute vulnerable parts, which are easily damaged.
  • the object of the invention is to obtain a coupling piece of the above kind, wherein the above-described drawbacks can be avoided.
  • the coupling piece is provided with spring means, which are constructed in such a manner that in the coupled condition of the coupling piece to the implement said spring means tend to draw the clamping wedge firmly into the conical recesses, whilst a setting cylinder is provided on the coupling piece, by means of which the clamping wedge can be moved against the action of the spring means.
  • the setting cylinder will be a hydraulic setting cylinder, which may be connected to the hydraulic circuit of the excavator or the like, so that it can be controlled from the driver's cab of the excavator. It is also possible, however, to provide e.g. pneumatic or electric setting cylinders, which may e.g. be connected to corresponding circuits of the excavators or the like.
  • the spring means will take care of it that the clamping wedge remains in the position suitable for clamping down the implement to the coupling piece, so that during operation it will not be necessary to keep the setting cylinder under pressure for this purpose. This also enhances the safety during operation.
  • the setting cylinder in such a manner that it can be adjusted into a position in which the hydraulic setting cylinder is located at some distance from the clamping wedge. Consequently it is avoided that during operation undesirable forces are exerted on the setting cylinder via the clamping wedge, as a result of which overloading of and damage to the setting cylinder is avoided.
  • Figure 1 is a plan view of a coupling piece and, illustrated in chain-dotted lines, of connecting plates secured to an implement.
  • Figure 2 is a side view of Figure 1, seen according to the arrow II in Figure 1, wherein some parts have been left out.
  • Figure 3 is a view of Figure 1, seen in the direction indicated by the arrow III in Figure 1.
  • Figure 4 is a sectional view of Figure 1, at the location of the setting cylinders.
  • Figure 5 is a sectional view of Figure 1, at the location of a spring.
  • the coupling piece illustrated in the Figures comprises a bent plate-shaped part 2, to one end of which a shaft 3 is connected.
  • the ends of the shaft 3 form studs 4, whose diameter is slightly smaller than that of the other part of the shaft 3.
  • reinforcing ribs 5 are secured to the plate, said reinforcing ribs extending perpendicularly to said part of the plate.
  • reinforcing ribs 6 extending parallel to the reinforcing ribs 5 are provided near the end of the plate 2 remote from the shaft 3, said reinforcing ribs 6 with one end being connected to the ends of the reinforcing ribs 5 by means of plate-shaped parts 7 extending perpendicularly to the reinforcing ribs.
  • holes 8 are provided, through which pins 9 are passed.
  • Said pins 9 are surrounded by compression springs, which are confined between the plates 7 and further supporting plates 11, which are secured to the pins 9 by means of bolts 12.
  • the other ends of the pins 9 are secured, by means of bolts 13, to a clamping wedge 14 extending perpendicularly to the bolts 10.
  • reinforcing ribs 6 Between the reinforcing ribs 6 further reinforcing ribs 15 are secured to the plate 2, whereby said ribs 15 are connected to the ribs 6 by means of a transverse rib 16, in which a hole is provided for passing a cylinder housing 17 of a hydraulic setting cylinder, which is secured to the reinforcing ribs 16 by means of bolts 18.
  • the housing 17 of the setting cylinder accommodates a piston, which is connected to a piston rod 19, said piston rod with one end projecting beyond the housing 17 and at this end being provided with a spherical head 20.
  • the spherical head 20 lies opposite a conical recess 21, which is provided in a surface of the clamping wedge 14 facing the setting cylinder.
  • Lines 22 and 23 are connected to the setting cylinder for the supply and discharge of pressurized fluid, whereby said lines may be connected to the hydraulic circuit of an excavator or the like in a manner known per se.
  • Projecting ears 24 are secured to the plate 2 at the side of the plate 2 remote from the setting cylinder, said ears being provided with holes 25 for coupling the coupling piece to the jib of an excavator or the like in a manner known per se.
  • the above-described coupling piece which during operation will be coupled to the end of the jib of an excavotor or the like as well as to a setting cylinder provided on said jib, so that the coupling piece can be pivoted with respect to the jib by means of the setting cylinder, is intended for coupling implements to the jib.
  • Such implements such as e.g. an excavator bucket, will thereby be provided in a usual manner with two connecting plates 26 secured to the implement, said connecting plates being provided with hook-shaped parts 27 for receiving the studs 4.
  • the plates are provided, in a manner known per se, with conical recesses for receiving the correspondingly shaped ends of the clamping wedge 14, all this in such a manner that the clamping wedge 14 will be drawn firmly into the recesses, towards the left, when seen in Figure 2, under the influence of the compression springs 10.
  • the angle of the wedge-shaped parts of the wedge and the correspondingly shaped recesses in the plates has been chosen such that the ends of the clamping wedge are accommodated in the respective recesses in a self-gripping manner, so that the wedge will not tend to work itself loose from the coupled position shown in the Figures.
  • any tendency of the clamping wedge 14 to work itself loose from the coupled position shown in the Figures is opposed by the springs 10, which draw the clamping wedge into the recesses.
  • the sphere 20 secured to the end of the piston rod 19 is spaced by some distance from the boundary face of the recess 21 provided in the wedge, so that the forces exerted on the wedge will not be transmitted to the setting cylinder of which the piston rod 19 forms part.
  • the piston rod 19 can be moved towards the right, when seen in Figure 1, by supplying pressurized fluid to the setting cylinder, so that the sphere 20 is pressed into the recess 21 provided in the clamping wedge and the clamping wedge 14 is moved towards the right, when seen in Figure 1, into a position in which the wedge-shaped ends of the clamping wedge 14 are removed from the recesses in the plates 26. Due to the two compression springs acting on the clamping wedge said clamping wedge is moved evenly and it is avoided that the wedge is pressed out of alignment, which may lead to the wedge becoming jammed. After the wedge 14 has been removed from the recesses 26 the coupling piece can be uncoupled by suitably manipulating the connecting plates and the implement equipped therewith, in order to be coupled to another implement provided with similar connecting plates again.
  • a further advantage of the construction according to the invention is that the same coupling piece is suitable for remote control by means of a hydraulic cylinder as described above, as well as for a mechanical connection, in which case the setting cylinder may be left out and the clamping wedge may be fixed in the usual manner by means of bolts.
  • a construction originally made for mechanical connection may thus be adapted for remote control at a later stage, e.g. by simply providing the setting cylinder.
  • protecting hoods 30 may furthermore be secured to the ends of the connecting plates in which the recess for receiving the wedge-shaped ends of the clamping wedge 14 are provided, said protecting hoods constituting a protection for the ends of the clamping wedge 14 as well as for the recesses receiving said ends, and at the same time form an additional reinforcement of the connecting plates, so as to oppose undesirable bending of the connecting plates near the recesses receiving the ends of the clamping wedge 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • External Artificial Organs (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Food-Manufacturing Devices (AREA)
  • Shovels (AREA)
  • Adornments (AREA)
  • Table Devices Or Equipment (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Clamps And Clips (AREA)
  • Earth Drilling (AREA)
EP92201901A 1991-07-02 1992-06-26 Pièce de verrouillage Expired - Lifetime EP0521560B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19929218344 DE9218344U1 (de) 1991-07-02 1992-06-26 Kupplungsstück

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9101150 1991-07-02
NL9101150A NL9101150A (nl) 1991-07-02 1991-07-02 Koppelstuk.

Publications (3)

Publication Number Publication Date
EP0521560A2 true EP0521560A2 (fr) 1993-01-07
EP0521560A3 EP0521560A3 (en) 1993-03-17
EP0521560B1 EP0521560B1 (fr) 1995-08-30

Family

ID=19859455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92201901A Expired - Lifetime EP0521560B1 (fr) 1991-07-02 1992-06-26 Pièce de verrouillage

Country Status (7)

Country Link
EP (1) EP0521560B1 (fr)
AT (1) ATE127189T1 (fr)
DE (1) DE69204385T2 (fr)
DK (1) DK0521560T3 (fr)
ES (1) ES2079786T3 (fr)
GR (1) GR3017671T3 (fr)
NL (1) NL9101150A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674053A2 (fr) 1994-03-24 1995-09-27 Karl Heinz Josef Leh Accouplement rapide d'un accessoire à une pelle mécanique
WO1996008612A1 (fr) * 1993-09-08 1996-03-21 Keech Castings Australia Pty. Limited Procede et dispositif de fixation hydraulique
FR2785952A1 (fr) * 1998-11-12 2000-05-19 Alain Husson Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
FR2785951A1 (fr) * 1998-11-12 2000-05-19 Alain Husson Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
EP1048790A2 (fr) * 1999-02-23 2000-11-02 Metaalwarenfabriek A.P. Verachtert B.V. Pièce d'assemblage
US6154989A (en) * 1997-03-10 2000-12-05 Clark Equipment Company Attachment construction for earthworking implement
WO2001083893A1 (fr) * 2000-05-03 2001-11-08 Klac Industrie Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
WO2002066750A1 (fr) * 2001-02-23 2002-08-29 Mclellan Robin S Appareil permettant de coupler de façon liberable un accessoire a un excavateur
US6688801B2 (en) * 2000-05-31 2004-02-10 Klac Industrie Quick fastening safety device for fixing a tool to the end of a loader arm or the like
EP3034704A1 (fr) * 2014-12-17 2016-06-22 Caterpillar INC. Coupleur d'outil présentant une configuration de verrouillage compact
EP3502354A4 (fr) * 2016-08-18 2020-03-25 Daemo Engineering Co., Ltd. Dispositif à sécurité intégrée pour raccord rapide
DE102019104321A1 (de) * 2019-02-20 2020-08-20 Thomas Jansen Schnellkupplungssystem

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5983535A (en) * 1997-03-10 1999-11-16 Clark Equipment Company Fastener secured frame for boom mounted quick change bracket
US6163989A (en) * 1997-03-10 2000-12-26 Clark Equipment Company Frame for mounting on a boom mounted quick change bracket

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7904335A (nl) * 1979-06-01 1980-12-03 Bofors Nederland Inrichting voor het koppelen van een gereedschap aan een giek.
EP0122547A1 (fr) * 1983-04-07 1984-10-24 Karl Schaeff GmbH & Co. Dispositif de changement rapide
AT389906B (de) * 1987-11-23 1990-02-26 Lehnhoff Hartstahl Ges M B H Schnellwechselvorrichtung mit automatischer verriegelung fuer arbeitswerkzeuge an einem baggerausleger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7904335A (nl) * 1979-06-01 1980-12-03 Bofors Nederland Inrichting voor het koppelen van een gereedschap aan een giek.
EP0122547A1 (fr) * 1983-04-07 1984-10-24 Karl Schaeff GmbH & Co. Dispositif de changement rapide
AT389906B (de) * 1987-11-23 1990-02-26 Lehnhoff Hartstahl Ges M B H Schnellwechselvorrichtung mit automatischer verriegelung fuer arbeitswerkzeuge an einem baggerausleger

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996008612A1 (fr) * 1993-09-08 1996-03-21 Keech Castings Australia Pty. Limited Procede et dispositif de fixation hydraulique
US5926982A (en) * 1993-09-08 1999-07-27 Keech Castings Australia Pty. Limited Hydraulic fastening device and method
EP0674053A2 (fr) 1994-03-24 1995-09-27 Karl Heinz Josef Leh Accouplement rapide d'un accessoire à une pelle mécanique
US6154989A (en) * 1997-03-10 2000-12-05 Clark Equipment Company Attachment construction for earthworking implement
US6629811B1 (en) 1998-11-12 2003-10-07 Klac Industrie Quick fastener system for fixing a tool at the end of a loading arm
FR2785952A1 (fr) * 1998-11-12 2000-05-19 Alain Husson Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
FR2785951A1 (fr) * 1998-11-12 2000-05-19 Alain Husson Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
WO2000029680A1 (fr) * 1998-11-12 2000-05-25 Klac Industrie Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
EP1048790A2 (fr) * 1999-02-23 2000-11-02 Metaalwarenfabriek A.P. Verachtert B.V. Pièce d'assemblage
EP1048790A3 (fr) * 1999-02-23 2000-12-06 Metaalwarenfabriek A.P. Verachtert B.V. Pièce d'assemblage
US6302611B1 (en) * 1999-02-23 2001-10-16 Metaalwarenfabriek A.P. Verachtert B.V. Connecting piece
WO2001083893A1 (fr) * 2000-05-03 2001-11-08 Klac Industrie Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
FR2808542A1 (fr) * 2000-05-03 2001-11-09 Alain Husson Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
US6688801B2 (en) * 2000-05-31 2004-02-10 Klac Industrie Quick fastening safety device for fixing a tool to the end of a loader arm or the like
WO2002066750A1 (fr) * 2001-02-23 2002-08-29 Mclellan Robin S Appareil permettant de coupler de façon liberable un accessoire a un excavateur
EP3034704A1 (fr) * 2014-12-17 2016-06-22 Caterpillar INC. Coupleur d'outil présentant une configuration de verrouillage compact
US10029896B2 (en) 2014-12-17 2018-07-24 Caterpillar Inc. Tool coupler having compact locking configuration
EP3502354A4 (fr) * 2016-08-18 2020-03-25 Daemo Engineering Co., Ltd. Dispositif à sécurité intégrée pour raccord rapide
US11421394B2 (en) 2016-08-18 2022-08-23 Daemo Engineering Co., Ltd. Double safety device for quick coupler
DE102019104321A1 (de) * 2019-02-20 2020-08-20 Thomas Jansen Schnellkupplungssystem

Also Published As

Publication number Publication date
EP0521560A3 (en) 1993-03-17
GR3017671T3 (en) 1996-01-31
NL9101150A (nl) 1993-02-01
ATE127189T1 (de) 1995-09-15
EP0521560B1 (fr) 1995-08-30
DE69204385T2 (de) 1996-02-22
ES2079786T3 (es) 1996-01-16
DE69204385D1 (de) 1995-10-05
DK0521560T3 (da) 1995-10-16

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