EP0704577A1 - Schnellkupplung zum Befestigen der Arbeitswerkzeuge an einem Baggerausleger - Google Patents

Schnellkupplung zum Befestigen der Arbeitswerkzeuge an einem Baggerausleger Download PDF

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Publication number
EP0704577A1
EP0704577A1 EP95401790A EP95401790A EP0704577A1 EP 0704577 A1 EP0704577 A1 EP 0704577A1 EP 95401790 A EP95401790 A EP 95401790A EP 95401790 A EP95401790 A EP 95401790A EP 0704577 A1 EP0704577 A1 EP 0704577A1
Authority
EP
European Patent Office
Prior art keywords
tool
stops
shaft
stop
arm
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
EP95401790A
Other languages
English (en)
French (fr)
Other versions
EP0704577B1 (de
Inventor
Marcel Morin
Fabrice Denis Faure
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.)
A RESPONSABILITE MORIN FRERES Ltee Ste
Original Assignee
A RESPONSABILITE MORIN FRERES Ltee Ste
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
Priority claimed from FR9411631A external-priority patent/FR2725223B1/fr
Application filed by A RESPONSABILITE MORIN FRERES Ltee Ste filed Critical A RESPONSABILITE MORIN FRERES Ltee Ste
Publication of EP0704577A1 publication Critical patent/EP0704577A1/de
Application granted granted Critical
Publication of EP0704577B1 publication Critical patent/EP0704577B1/de
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

Definitions

  • the present invention relates to improvements to the devices for attaching a tool to the end of the arm of a hydraulic shovel or the like.
  • a quick coupler has two parts, a first part, or attachment member, which is carried by the end of the arm and a second part which is made integral with the tool.
  • the second part is mainly constituted by a shaft, or by two pins, fixed relative to the tool.
  • the first part which is articulated at the end of the arm, has, in its simplest form, a hook forming a semi-cylindrical cradle capable of being engaged on the shaft of the tool when the latter rests on the ground.
  • the present invention which overcomes this drawback, is remarkable in that the fastening member has a stop capable of cooperating, when the tool is locked, with a stop carried by the tool so as to oppose what the tool shaft tends to come out of its cradle.
  • 1 is the end of the usual arm of a loader on which a tool 2 should be fixed.
  • the tool 2 is a hammer -prickler, that is to say a tool which is subjected to alternating forces.
  • the hooking member 3 is produced by means of two identical hooks 4, forming cradles, joined by, at least, a cross member 5. Each hook is located on the small branch of a shaped part 6 d'L.
  • the attachment member 3 is articulated at the end of the arm 1 by means of a shaft 7 and can pivot around the axis of said shaft by means of links 8 and 9 subjected to the action of 'A cylinder whose piston rod appears at 10 in the drawings.
  • the tool 2 has a shaft capable of being grasped by the cradle formed by the hooks 4.
  • the aforementioned shaft can be limited to two lateral pins 11.
  • Figure 1 shows the tool hung under the arm 1.
  • the rod 10 By moving the rod 10 according to the arrow F1 is rotated the fastening member 3 in the same direction until the latter automatically locks at the top of the tool (position shown in Figure 2).
  • the means for achieving this locking have not been shown but are described in the aforementioned European patent No. 438931.
  • the attachment member has a stop 12 capable of cooperating, when the tool is locked, with a stop 13 provided on the tool.
  • the stop 12 has a concave contact surface 14 and the stop 13 has a convex contact surface 15, the stop 12 being fixed relative to the member 3 and that 13 being fixed relative to the tool 2.
  • the two surfaces 14 and 15 move on a fictitious cylinder whose axis is coincident with that of the journals 11. In all rigor and for mechanical reasons, the surfaces 14 and 15 evolve on two distinct fictitious cylinders, the difference in radii between the two cylinders resulting from the necessary mechanical play between the two surfaces. It is desirable that this play be as reduced as possible.
  • the stop 12 pivots in the same direction and is positioned, at the end of the locking, above the stop 13. In this last position, the forces to which the tool (those acting along arrow F2) are transmitted to the latching member by the stop 13 which cooperates with that 12 and not by the pins 11. The forces exerted in the opposite direction are collected by the semi-cylindrical cradle formed by the hooks 4.
  • the stops 12 and 13 are located in planes separate from those containing the hooks.
  • the stop 13 is disposed between the pins 11 and that 12 is made integral with the crosspiece 5.
  • the contact between the two stops extends over an arc length of less than 180 °, nothing prevents this contact from extending over a length arc close to 180 ° by judicious sizing of the quick coupler, sizing which is within the reach of those skilled in the art.
  • the present invention overcomes this drawback, as will emerge from the description below given with reference to FIGS. 3 and 4.
  • Figure 3 shows the attachment of a bucket 16 using a hooking member 3.
  • the bucket 16 has a shaft 17, fixed relative to said bucket.
  • the shaft 17 has two stops 18 and 19, diametrically opposite, capable of cooperating, when the bucket is locked, with two stops 20 and 21 carried by the fastening member 3.
  • the stops have contact surfaces 22 and 23 similar to those 14 and 15.
  • stops 20 and 21 are arranged towards the outside with respect to the axis of the shaft 17, but this arrangement can be reversed as shown in FIG. 5.
  • the shaft 17 has two stops 24 and 25 capable, when the tool is locked, of cooperating with two stops 26 and 27 carried by the member 3.

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)
  • Earth Drilling (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP95401790A 1994-09-29 1995-07-28 Schnellkupplung zum Befestigen der Arbeitswerkzeuge an einem Baggerausleger Expired - Lifetime EP0704577B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9411631A FR2725223B1 (fr) 1994-09-29 1994-09-29 Perfectionnements aux dispositifs pour fixer un outil a l'extremite du bras d'une pelle hydraulique ou analogue
FR9411631 1994-09-29
FR9506566 1995-06-02
FR9506566A FR2725224B1 (fr) 1994-09-29 1995-06-02 Perfectionnements aux dispositifs pour fixer un outil a l'extremite du bras d'une pelle hydraulique ou analogue

Publications (2)

Publication Number Publication Date
EP0704577A1 true EP0704577A1 (de) 1996-04-03
EP0704577B1 EP0704577B1 (de) 2000-02-09

Family

ID=26231431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401790A Expired - Lifetime EP0704577B1 (de) 1994-09-29 1995-07-28 Schnellkupplung zum Befestigen der Arbeitswerkzeuge an einem Baggerausleger

Country Status (6)

Country Link
EP (1) EP0704577B1 (de)
AT (1) ATE189726T1 (de)
DE (1) DE69514973T2 (de)
DK (1) DK0704577T3 (de)
ES (1) ES2144588T3 (de)
FR (1) FR2725224B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810330A1 (de) * 1996-05-30 1997-12-03 Societe A Responsabilite Limitee : Morin Freres Vorrichtung zum Befestigen eines Werkzeugs am Ende eines Armes eines Schaufelbaggers
FR2760029A1 (fr) * 1997-02-24 1998-08-28 Case France Dispositif d'accrochage a une barre, et bras de manipulation d'outil le comportant
WO2007059721A1 (de) * 2005-11-28 2007-05-31 Robert Riedlberger Zentriervorrichtung für schnellwechselvorrichtungen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017000852B4 (de) * 2017-01-31 2020-11-05 Markus Riedlberger Sicherheitsvorrichtung gegen unbeabsichtigtes Herausfallen von Werkzeugen aus einer Schnellwechselvorrichtung
DE102017130437A1 (de) * 2017-12-19 2019-06-19 Oilquick Deutschland Gmbh Schnellwechsler, Adapter und Schnellwechselsystem
DE102017130436A1 (de) * 2017-12-19 2019-06-19 Oilquick Deutschland Gmbh Adapter, Schnellwechsler und Schnellwechselsystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2162156A1 (de) * 1971-12-01 1973-07-13 Verachtert Antonius
FR2316387A1 (fr) * 1975-06-21 1977-01-28 Orenstein & Koppel Ag Dispositif pour le changement rapide des instruments de travail des pelles hydrauliques
EP0438931A1 (de) 1990-01-26 1991-07-31 Societe En Nom Collectif Morin Freres Vorrichtung zum Verbinden einer Schaufel, oder dergleichen, am Auslegerende eines Laders
DE9204711U1 (de) * 1992-04-05 1992-07-16 Eisenwerke Kaiserslautern Gmbh, 6750 Kaiserslautern Schnellwechselvorrichtung für Baumaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2162156A1 (de) * 1971-12-01 1973-07-13 Verachtert Antonius
FR2316387A1 (fr) * 1975-06-21 1977-01-28 Orenstein & Koppel Ag Dispositif pour le changement rapide des instruments de travail des pelles hydrauliques
EP0438931A1 (de) 1990-01-26 1991-07-31 Societe En Nom Collectif Morin Freres Vorrichtung zum Verbinden einer Schaufel, oder dergleichen, am Auslegerende eines Laders
DE9204711U1 (de) * 1992-04-05 1992-07-16 Eisenwerke Kaiserslautern Gmbh, 6750 Kaiserslautern Schnellwechselvorrichtung für Baumaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810330A1 (de) * 1996-05-30 1997-12-03 Societe A Responsabilite Limitee : Morin Freres Vorrichtung zum Befestigen eines Werkzeugs am Ende eines Armes eines Schaufelbaggers
FR2749332A1 (fr) * 1996-05-30 1997-12-05 Morin Freres Dispositif pour fixer un outil a l'extremite du bras d'une pelle mecanique
FR2760029A1 (fr) * 1997-02-24 1998-08-28 Case France Dispositif d'accrochage a une barre, et bras de manipulation d'outil le comportant
WO2007059721A1 (de) * 2005-11-28 2007-05-31 Robert Riedlberger Zentriervorrichtung für schnellwechselvorrichtungen
US7752781B2 (en) 2005-11-28 2010-07-13 Robert Riedlberger Centring device for quick-change devices

Also Published As

Publication number Publication date
DE69514973D1 (de) 2000-03-16
FR2725224A1 (fr) 1996-04-05
ATE189726T1 (de) 2000-02-15
DK0704577T3 (da) 2000-07-24
EP0704577B1 (de) 2000-02-09
ES2144588T3 (es) 2000-06-16
FR2725224B1 (fr) 1997-04-18
DE69514973T2 (de) 2000-07-27

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