EP0143074A1 - Excavatrice - Google Patents

Excavatrice Download PDF

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Publication number
EP0143074A1
EP0143074A1 EP84810450A EP84810450A EP0143074A1 EP 0143074 A1 EP0143074 A1 EP 0143074A1 EP 84810450 A EP84810450 A EP 84810450A EP 84810450 A EP84810450 A EP 84810450A EP 0143074 A1 EP0143074 A1 EP 0143074A1
Authority
EP
European Patent Office
Prior art keywords
wedge
excavator
gripping device
boom
excavator according
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
EP84810450A
Other languages
German (de)
English (en)
Other versions
EP0143074B1 (fr
Inventor
Fredi Stury
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.)
Fredi Stury AG
Original Assignee
Fredi Stury AG
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 Fredi Stury AG filed Critical Fredi Stury AG
Priority to AT84810450T priority Critical patent/ATE37404T1/de
Publication of EP0143074A1 publication Critical patent/EP0143074A1/fr
Application granted granted Critical
Publication of EP0143074B1 publication Critical patent/EP0143074B1/fr
Expired 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
    • E02F3/3627—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
    • E02F3/3663—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 present invention relates to an excavator having a boom and a bucket attached to the boom.
  • the object of the present invention is to improve the excavator so that it does not have the disadvantages mentioned.
  • the boom 1 of the excavator contains a main carrier 2 and an auxiliary carrier 3, which can be actuated by the hydraulic equipment of the excavator.
  • the excavator bucket 5 is attached to the illustrated ends of these supports 2 and 3 with the aid of a fastening device 4.
  • the fastening device 4 essentially consists of a gripping device 6 and a safety device 7.
  • the safety device 7 is attached to the vessel 8 of the excavator bucket 5 in the example shown, while the gripping device 6 is articulated on the supports 2 and 3 of the boom 1.
  • the safety gear 7 has two side walls 9 and 10 and a rear wall 11 connecting them. The lower and front edges of these walls 9 to 11 are connected to the vessel 8 of the spoon 5, for example by welding.
  • the safety device 7 is open at the top so that it can accommodate the gripping device 6.
  • a bolt 12 extends between the side walls 9 and 10 of the catching device 7 and, depending on the circumstances, can also be hollow.
  • the rear wall 11 of the safety device 7 has an inner wall 13 (FIG. 2) and a support wall 14. Are below these walls 13 and 14 are welded to the vessel 8 of the spoon 5. The upper edges of these walls 13 and 14 are welded together.
  • the inside of the inner wall 13 is provided with two protruding lugs 15 and 16 which extend into the interior of the safety device 7.
  • the contour of these lugs 15 and 16 initially has a downwardly bent section 17, to which a practically straight lower section 18 of the contour of the lugs 15 and 16 is connected, which in turn merges into a tapering section 19 , with which the contour of the nose 15 or 16 ends below.
  • the gripping device 6 has a hollow base body 20 which contains a base 21 and an oblique rear wall 22 which adjoins this at the rear.
  • the front wall 23 of the hollow base body 20 has the shape of a ring segment in cross section, so that it has a recess 24 on its outside.
  • the bolt 12 of the safety device 7 comes to rest in this recess when the gripping device 6 is located in the safety device 7.
  • the rear wall 22 of the base body 20 is provided with openings 25 and 26, which in the example shown have the shape of slots. These slots 25 and 26 also extend partially in the bottom 21 of the base body 20.
  • the lugs 15 and 16 pass through these openings 25 and 26 when the gripping device 6 moves into the catching device 7.
  • the position of the lugs 15 and 16 in relation to the rear wall 22 can be seen clearly from FIG. 2.
  • the straight section 18 of the contour of the lugs 15 and 16 forms an acute angle with the bottom of the base body 21.
  • a locking mechanism 30 is located in the interior of the green body 20.
  • This mechanism 30 contains a wedge 31 which is displaceable on the bottom 21 of the base body 20 until it comes under the lugs 15 and 16.
  • the displacement of the wedge 31 is caused by a hydraulic cylinder 32 which is located in the base body 20.
  • One end of this cylinder 32 is connected to the wedge 31 and the other end thereof is attached to a plate 29 which is erected on the bottom 21 of the hollow body 20.
  • This hydraulic cylinder 32 can be operated from the cab of the excavator.
  • the hollow base body 20 is connected to a cover plate 33, for example by welding.
  • Tabs 34 and 35 which have openings 36 and 37, are fastened to the top of this plate 33.
  • bolts (not shown - 'represents 7) pass through which the gripping device 6 is articulated to the boom 1.
  • the boom 1 is constantly in connection with the gripping device 6.
  • This sheet metal strip 38 causes the front side wall 23 of the gripping device 6 to lie snugly on the bolt 12 of the catching device 7. When worn, the wear plate 38 is replaced by another.
  • the boom 1 is moved relative to the stationary bucket 5 until the front wall 23 of the base body 20 rests on the bolt 12 with its recess 24. If this is not immediately possible, one can press the boom 1 on the walls 9 to 11 or on the bolt 12 until the spoon 5 assumes a more favorable position for moving the gripping device 6 into the catching device 7. After the correct position between the devices 6 and 7 mentioned has been reached, the is lowered Subcarrier 3 so that the rear part of the gripping device 6 can also move into the catching device 7.
  • the lugs 15 and 16 pass through the openings 25 and 26 until they are located inside the base body 20, as can be seen from FIG. 2.
  • the hydraulic cylinder 32 can be actuated, after which it presses the wedge 31 between the straight and inclined portion 18 of the lugs 15 and 16 and the bottom 21 of the base body 20.
  • the wedge 31 pushes the lugs 15 and 16 upward, so that the walls 13 and 22 slide on one another with the interposition of the sheet 38. Since these walls 13 and 22 run obliquely, the front wall 23 of the gripping device 6 is pressed against the bolt 12 so that they rest snugly on one another.
  • the two devices 6 and 7 thus come into contact only in the area of the bolt 12 and the front wall 23 and in the area of the rear walls 13 and 22.
  • the spoon 5 is first placed on the floor.
  • the hydraulic cylinder 32 is then actuated in such a way that the wedge 31 is withdrawn. This clears the noses 15 and 16. Now you can lift the auxiliary carrier 2 and the gripping device 6 leaves the safety device 7 of the bucket 5. Then you can drive to another bucket 5 or to another excavator tool, which is provided with the safety device 7 described, and the boom 1 in here connect in the manner already described.
  • This locking mechanism 40 also contains a wedge 41 and an actuating device 42 for the wedge 41.
  • the design of the wedge 41 can be seen better from FIG. 4, in which the section IV-IV from FIG. 3 is shown.
  • the wedge 41 has a middle, higher section 43 which is located between the lugs 15 and 16 of the safety device 7. These lugs 15 and 16 pass through the slot-shaped openings 25 and 26 in the rear wall 22 of the hollow body 20 and they protrude into the interior of this hollow body 20 of the gripping device 6.
  • a lower section 44 and 45 of the wedge 41 each adjoins the middle section 43 of the wedge. These lower parts 44 and 45 of the wedge 41 practically extend to the side walls 46 and 47 of the hollow body 20, which is closed at the bottom by the base plate 21 and at the top by the cover plate 33.
  • a horizontally arranged holding plate 48 rests on the wedge 41, the end part of which lying in the region of the wedge 41 is provided with a standing plate 49.
  • This standing plate 49 inter alia prevents the holding plate 48 from being able to rise under the action of the loaded wedge 41.
  • the other end of the holding plate 48 is fastened by means of screws 50 to stops 51 and 52, of which only the rear stop 51 is shown in FIG. 3.
  • a recess 54 of approximately circular cross section is made, the purpose of which will be described.
  • a threaded bore 55 then adjoins this depression 54 in the wedge 41, so that the wedge 41 has a horizontally running and continuous opening.
  • the front lower side 56 of the wedge 41 is chamfered so that it Part 56 of the wedge 41 can not rest on the rear wall 22 of the hollow body 20 if it should happen that the wedge 41 moves too far to the left.
  • the top 57 and 58 of the respective lower flank 44 and 45 of the wedge 41 forms an acute angle with the underside of the wedge 41 and these surfaces 57 and 58 of the lateral parts 44 and 45 of the wedge 41 are in engagement with the underside 18 of the lugs 15 and 16 of the safety device 7.
  • a helical compression spring 60 is mounted between the abovementioned stops 51 and 52, which are located on the base plate 21 of the hollow body 20.
  • This spring 60 presses at one end onto the rear side of the wedge 41 and at the other end it is supported on the vertical plate 29, which in turn is fastened on the base plate 21 and on the front wall 23 of the hollow body 20.
  • the abovementioned stops 51 and 52 prevent the spring 60 from moving to one side or the other.
  • the holding plate 48 which extends over a considerable part of the spring 60, also has the task of preventing the spring 60 from escaping upwards. As can be seen above all from FIG. 3, the position of the standing plate 49 with respect to the holding plate 48 is ensured by means of triangular standing plates 61 and 62.
  • the support wall 14 and the inner wall 13 of the safety device 7 and the rear wall 22 of the hollow body 20 are provided with openings 63, 64 and 65.
  • the openings 63 and 64 in the walls 14 and 13 of the safety device 7 are designed as U-shaped cuts made from above, as can be seen from the perspective illustration in FIG. 1.
  • the opening 65 in the rear wall of the hollow body 20 is approximately circular and its axis coincides with the axis of the threaded bore 55 in the wedge 41.
  • a screw 66 passes through, the diameter of the bolt of this screw 66 being smaller than the diameter of the opening 65 mentioned.
  • the screw 66 which advantageously has a head with a hexagon socket, rotates freely in this opening 65 leaves.
  • the head of the screw 66 lies in the region of the two openings 63 and 64 mentioned.
  • the head goes Head of screw 66 through the upper open part of openings 63 and 64.
  • the bolt of the screw 66 is provided on the side of the rear wall 22 opposite the head with two lock nuts 67, which are located at a distance from the inside of the rear wall 22, so that there is also play between the latter and the rear wall 22.
  • the consequence of this is that the screw 66 in the opening 65 can also be moved a little in the axial direction.
  • Under the head of the screw 66 there may be a locking edge washer (not shown) that prevents the screw 66 from becoming loose during the operation of the excavator.
  • the lock nuts 67 are glued to one another with the aid of a suitable adhesive so that they cannot change their position on the screw 66 during the operation of the excavator.
  • the screw 66 is actuated in such a way that the wedge 41 is as far to the right as possible, at least to the extent that the wedge 41 does not collide with the lugs 15 and 16 when these enter the gripping device 6.
  • the screw 66 By turning the screw 66, the wedge 41 is pressed against the spring 60 so that it is tensioned. Especially in this phase, the stops 51 and 52 and the holding plate 48 effective.
  • the mentioned displacement of the wedge 41 is possible thanks to the lock nuts 67 on the screw 66.
  • the wedge 41 must be brought into engagement with the lugs 15 and 16. This is achieved by turning screw 66 in the opposite direction. Now the screw 66 pulls the wedge 41 to the left and the spring 60 relaxes in the process. If the wedge 41 is sufficiently far to the left, then the upper sides 56 and 57 of the side parts 44 and 45 of the wedge 41 come with the lower sides 18 of the lugs 15 and 16 engages, whereby a firm connection between the gripping device 6 and the catching device 7 is established. So that this connection does not become looser but rather tighter during the operation of the excavator, the wedge 41 is still under the action of the compression spring 60.
  • the engagement between the named parts of the fastening device becomes due to the action of the spring 60 on the wedge 41 still improved.
  • the aforementioned locking edge disc prevents, as has already been mentioned, the screw 66 from rotating during the operation of the excavator.
  • the recess 57 in the front part of the wedge 41 can accommodate the lock nuts 67 if the wedge 41 should move so far to the left.
  • a profile piece 70 and 71 (FIG. 1) is fastened to the rear wall of the spoon 8 on each side of the safety gear 7, by means of which the side walls 9 and 10 of the safety device 7 are supported. These profile pieces 70 and 71 distribute the forces acting on the catching device 7 from the gripping device 6 over the entire width of the spoon 8, so that the location of the direct connection between the catching device and the spoon is less mechanically stressed.
  • the mentioned profile piece 70 and 71 have in cross-section the shape of an open U, in which one leg is shorter than the other leg of the same. The shorter leg of the profile pieces 70 and 71 is attached to the edge of the excavator bucket 8, while the longer leg adjoins the rear wall of the bucket 8.

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)
  • Surgical Instruments (AREA)
  • Toys (AREA)
EP84810450A 1983-09-15 1984-09-14 Excavatrice Expired EP0143074B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810450T ATE37404T1 (de) 1983-09-15 1984-09-14 Bagger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5024/83A CH661305A5 (de) 1983-09-15 1983-09-15 Bagger mit einer einrichtung zum wahlweisen befestigen des baggerloeffels am baggerausleger.
CH5024/83 1983-09-15

Publications (2)

Publication Number Publication Date
EP0143074A1 true EP0143074A1 (fr) 1985-05-29
EP0143074B1 EP0143074B1 (fr) 1988-09-21

Family

ID=4286629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810450A Expired EP0143074B1 (fr) 1983-09-15 1984-09-14 Excavatrice

Country Status (4)

Country Link
EP (1) EP0143074B1 (fr)
AT (1) ATE37404T1 (fr)
CH (1) CH661305A5 (fr)
DE (1) DE3474173D1 (fr)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195610A (en) * 1986-08-27 1988-04-13 Nikola Solaja A loader attachment
DE3701589A1 (de) * 1987-01-21 1988-08-04 Macmoter Spa Schnellkupplung
US4810162A (en) * 1985-07-10 1989-03-07 J. C. Bamford Excavators Limited Mounting a working implement
GB2208220A (en) * 1987-07-20 1989-03-15 Fritiof Hulden Quick-coupling device, e.g. for excavator bucket
AT389906B (de) * 1987-11-23 1990-02-26 Lehnhoff Hartstahl Ges M B H Schnellwechselvorrichtung mit automatischer verriegelung fuer arbeitswerkzeuge an einem baggerausleger
EP0392972A2 (fr) * 1989-04-12 1990-10-17 Pietro Pallotta Raccord pour un godet d'excavateur
GB2239445A (en) * 1989-12-22 1991-07-03 Trevor Frederick Frank Hodges Coupling for excavator arm
WO1991011565A1 (fr) * 1990-01-24 1991-08-08 Nagler Juergen Accouplement rapide d'un accessoire a une pelle mecanique
GB2242927A (en) * 1990-03-07 1991-10-16 Martin James Aubrey Hydraulic coupling for use on an earth-working machine.
US5147173A (en) * 1991-06-03 1992-09-15 Caterpillar Inc. Coupling device
EP0511199A1 (fr) * 1991-04-26 1992-10-28 WIMMER, Alois Accouplement rapide pour la fixation d'un outil à une excavatrice
EP0555566A1 (fr) * 1992-02-14 1993-08-18 ATLAS WEYHAUSEN GmbH Dispositif hydraulique d'accouplement pour la prise et dépose d'un outil de travail d'excavatrice
EP0569026A1 (fr) * 1992-05-08 1993-11-10 Lehnhoff Hartstahl GmbH & Co. Dispositif d'attache rapide
EP0594486A1 (fr) * 1992-10-23 1994-04-27 Jean-Pierre Dorguin Dispositif d'attache rapide pour équipement d'engin de génie civil et de manutention
EP0616084A1 (fr) * 1993-03-19 1994-09-21 TREVI BENNE S.r.l. Attelage rapide autobloquant pour l'attache des godets ou d'autres outils sur engins de terrassement
DE19507896A1 (de) * 1995-03-07 1995-10-26 Frank Von Wolff Schnellwechselvorrichtung
AT403490B (de) * 1996-01-15 1998-02-25 Franz Winkelbauer Kupplungseinrichtung
US5727342A (en) * 1996-04-18 1998-03-17 Wain-Roy, Inc. Hydraulic latch pin assembly for coupling a tool to a construction equipment
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
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
EP1033447A2 (fr) * 1999-03-02 2000-09-06 Mantovanibenne S.r.l. Dispositif d'accouplement et de désaccouplement rapide d'un outil sur une flêche
EP1048790A2 (fr) * 1999-02-23 2000-11-02 Metaalwarenfabriek A.P. Verachtert B.V. Pièce d'assemblage
US6431785B1 (en) 2000-06-05 2002-08-13 Wec Co. Direct pin quick coupler
FR2826028A1 (fr) * 2001-06-19 2002-12-20 Klac Industrie 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
EP1820906A1 (fr) * 2006-02-21 2007-08-22 Fredy Stury AG Appareil muni d'un outil amovible
WO2008111917A1 (fr) * 2007-03-13 2008-09-18 Jozef Bajec Système d'accouplement rapide destiné à changer des outils d'excavation
EP2241680A1 (fr) * 2009-04-17 2010-10-20 Morin Dispositif de connexion, coupleur d'attache rapide et ensemble de connexion
DE102010034738A1 (de) 2009-08-21 2011-02-24 Perwein Baumaschinen-Systeme Gmbh Kupplungsvorrichtung
NO20093409A1 (no) * 2009-11-24 2011-05-25 Hardnor As Hurtigkobling for feste av et arbeidsredskap til en maskin
EP3048204A1 (fr) 2015-01-21 2016-07-27 Fredi Stury AG Dispositif de remplacement a monter sur une ensacheuse hydraulique
EP3165681A3 (fr) * 2015-10-15 2017-08-16 J.C. Bamford Excavators Limited Attache rapide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402312B (de) * 1993-12-20 1997-04-25 Ferrotechnik Ges M B H Wechseleinrichtung für anbaugeräte eines minibaggers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963183A (en) * 1957-09-25 1960-12-06 Warner Swasey Co Material handling machines having boom with detachable tool
US3556323A (en) * 1968-12-23 1971-01-19 Damian M Heimmermann Quick-connect coupler for bucket on excavating machine
US3934738A (en) * 1974-04-01 1976-01-27 Wain-Roy, Inc. Tool connecting
DE3018831A1 (de) * 1979-05-16 1980-11-20 Wain Co Roy Befestigungsvorrichtung
NL7904335A (nl) * 1979-06-01 1980-12-03 Bofors Nederland Inrichting voor het koppelen van een gereedschap aan een giek.
US4297074A (en) * 1980-01-07 1981-10-27 Ballinger Paul V Demountable interconnection
EP0058058A2 (fr) * 1981-02-05 1982-08-18 Maroochy Shire Council Dispositif pour séparation et fixation rapides

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963183A (en) * 1957-09-25 1960-12-06 Warner Swasey Co Material handling machines having boom with detachable tool
US3556323A (en) * 1968-12-23 1971-01-19 Damian M Heimmermann Quick-connect coupler for bucket on excavating machine
US3934738A (en) * 1974-04-01 1976-01-27 Wain-Roy, Inc. Tool connecting
DE3018831A1 (de) * 1979-05-16 1980-11-20 Wain Co Roy Befestigungsvorrichtung
NL7904335A (nl) * 1979-06-01 1980-12-03 Bofors Nederland Inrichting voor het koppelen van een gereedschap aan een giek.
US4297074A (en) * 1980-01-07 1981-10-27 Ballinger Paul V Demountable interconnection
EP0058058A2 (fr) * 1981-02-05 1982-08-18 Maroochy Shire Council Dispositif pour séparation et fixation rapides

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810162A (en) * 1985-07-10 1989-03-07 J. C. Bamford Excavators Limited Mounting a working implement
GB2195610A (en) * 1986-08-27 1988-04-13 Nikola Solaja A loader attachment
US4809449A (en) * 1986-08-27 1989-03-07 Nikola Solaja Loader attachment
GB2195610B (en) * 1986-08-27 1990-02-14 Nikola Solaja A loader attachment
DE3701589A1 (de) * 1987-01-21 1988-08-04 Macmoter Spa Schnellkupplung
GB2208220B (en) * 1987-07-20 1991-07-10 Fritiof Hulden A quick coupling assembly
GB2208220A (en) * 1987-07-20 1989-03-15 Fritiof Hulden Quick-coupling device, e.g. for excavator bucket
AT389906B (de) * 1987-11-23 1990-02-26 Lehnhoff Hartstahl Ges M B H Schnellwechselvorrichtung mit automatischer verriegelung fuer arbeitswerkzeuge an einem baggerausleger
EP0392972A2 (fr) * 1989-04-12 1990-10-17 Pietro Pallotta Raccord pour un godet d'excavateur
EP0392972A3 (fr) * 1989-04-12 1991-07-03 Pietro Pallotta Raccord pour un godet d'excavateur
GB2239445A (en) * 1989-12-22 1991-07-03 Trevor Frederick Frank Hodges Coupling for excavator arm
US5350250A (en) * 1990-01-24 1994-09-27 Nagler Juergen Quick coupling of a front work attachment on excavators
WO1991011565A1 (fr) * 1990-01-24 1991-08-08 Nagler Juergen Accouplement rapide d'un accessoire a une pelle mecanique
GB2242927A (en) * 1990-03-07 1991-10-16 Martin James Aubrey Hydraulic coupling for use on an earth-working machine.
GB2242927B (en) * 1990-03-07 1993-12-22 Martin James Aubrey Earth-working machine
US5110254A (en) * 1990-03-07 1992-05-05 Aubrey Martin J Quick-release coupling for earthworking machines
EP0511199A1 (fr) * 1991-04-26 1992-10-28 WIMMER, Alois Accouplement rapide pour la fixation d'un outil à une excavatrice
WO1992021828A1 (fr) * 1991-06-03 1992-12-10 Caterpillar Inc. Dispositif d'accouplement
US5147173A (en) * 1991-06-03 1992-09-15 Caterpillar Inc. Coupling device
EP0555566A1 (fr) * 1992-02-14 1993-08-18 ATLAS WEYHAUSEN GmbH Dispositif hydraulique d'accouplement pour la prise et dépose d'un outil de travail d'excavatrice
EP0569026A1 (fr) * 1992-05-08 1993-11-10 Lehnhoff Hartstahl GmbH & Co. Dispositif d'attache rapide
DE4214569C2 (de) * 1992-05-08 2001-12-20 Lehnhoff Hartstahl Gmbh & Co Schnellwechselvorrichtung
EP0594486A1 (fr) * 1992-10-23 1994-04-27 Jean-Pierre Dorguin Dispositif d'attache rapide pour équipement d'engin de génie civil et de manutention
FR2697302A1 (fr) * 1992-10-23 1994-04-29 Dorguin Jean Pierre Dispositif d'attache rapide pour équipement d'engin de génie civil et de manutention.
EP0616084A1 (fr) * 1993-03-19 1994-09-21 TREVI BENNE S.r.l. Attelage rapide autobloquant pour l'attache des godets ou d'autres outils sur engins de terrassement
DE19507896A1 (de) * 1995-03-07 1995-10-26 Frank Von Wolff Schnellwechselvorrichtung
AT403490B (de) * 1996-01-15 1998-02-25 Franz Winkelbauer Kupplungseinrichtung
US5727342A (en) * 1996-04-18 1998-03-17 Wain-Roy, Inc. Hydraulic latch pin assembly for coupling a tool to a construction equipment
USRE37320E1 (en) * 1996-04-18 2001-08-14 Wec Co. Hydraulic latch pin assembly for coupling a tool to a construction equipment
US5966850A (en) * 1996-04-18 1999-10-19 Wain-Roy Holding, Inc. Hydraulic latch pin assembly for coupling a tool to a construction equipment
USRE37339E1 (en) * 1996-04-18 2001-08-28 Wec Co. Hydraulic latch pin assembly for coupling a tool to a construction equipment
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
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
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
US6629811B1 (en) * 1998-11-12 2003-10-07 Klac Industrie Quick fastener system for fixing a tool at the end of a loading arm
EP1048790A3 (fr) * 1999-02-23 2000-12-06 Metaalwarenfabriek A.P. Verachtert B.V. Pièce d'assemblage
EP1048790A2 (fr) * 1999-02-23 2000-11-02 Metaalwarenfabriek A.P. Verachtert B.V. Pièce d'assemblage
EP1033447A3 (fr) * 1999-03-02 2000-12-06 Mantovanibenne S.r.l. Dispositif d'accouplement et de désaccouplement rapide d'un outil sur une flêche
US6332732B1 (en) 1999-03-02 2001-12-25 Mantovanibenne S.R.L. Device for rapid tool coupling and release on tool arms
EP1033447A2 (fr) * 1999-03-02 2000-09-06 Mantovanibenne S.r.l. Dispositif d'accouplement et de désaccouplement rapide d'un outil sur une flêche
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
US6431785B1 (en) 2000-06-05 2002-08-13 Wec Co. Direct pin quick coupler
FR2826028A1 (fr) * 2001-06-19 2002-12-20 Klac Industrie Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
WO2002103121A1 (fr) * 2001-06-19 2002-12-27 Klac Industrie Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue
EP1820906A1 (fr) * 2006-02-21 2007-08-22 Fredy Stury AG Appareil muni d'un outil amovible
WO2008111917A1 (fr) * 2007-03-13 2008-09-18 Jozef Bajec Système d'accouplement rapide destiné à changer des outils d'excavation
EP2241680A1 (fr) * 2009-04-17 2010-10-20 Morin Dispositif de connexion, coupleur d'attache rapide et ensemble de connexion
FR2944533A1 (fr) * 2009-04-17 2010-10-22 Morin Dispositif de connexion, coupleur d'attache rapide et ensemble de connexion.
DE102010034738A1 (de) 2009-08-21 2011-02-24 Perwein Baumaschinen-Systeme Gmbh Kupplungsvorrichtung
NO20093409A1 (no) * 2009-11-24 2011-05-25 Hardnor As Hurtigkobling for feste av et arbeidsredskap til en maskin
NO333221B1 (no) * 2009-11-24 2013-04-15 Hardnor As Hurtigkobling for feste av et arbeidsredskap til en maskin
EP3048204A1 (fr) 2015-01-21 2016-07-27 Fredi Stury AG Dispositif de remplacement a monter sur une ensacheuse hydraulique
CH710640A1 (de) * 2015-01-21 2016-07-29 Stury Fredi Ag Wechselvorrichtung zum Anbau an einem Hydraulikbagger.
EP3165681A3 (fr) * 2015-10-15 2017-08-16 J.C. Bamford Excavators Limited Attache rapide
US10883244B2 (en) 2015-10-15 2021-01-05 J. C. Bamford Excavators Limited Quick hitch

Also Published As

Publication number Publication date
EP0143074B1 (fr) 1988-09-21
DE3474173D1 (en) 1988-10-27
CH661305A5 (de) 1987-07-15
ATE37404T1 (de) 1988-10-15

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