EP0321902B1 - Kupplungsvorrichtung zum Ankuppeln eines Gerätes an den Ausleger einer Baumaschine - Google Patents

Kupplungsvorrichtung zum Ankuppeln eines Gerätes an den Ausleger einer Baumaschine Download PDF

Info

Publication number
EP0321902B1
EP0321902B1 EP88121217A EP88121217A EP0321902B1 EP 0321902 B1 EP0321902 B1 EP 0321902B1 EP 88121217 A EP88121217 A EP 88121217A EP 88121217 A EP88121217 A EP 88121217A EP 0321902 B1 EP0321902 B1 EP 0321902B1
Authority
EP
European Patent Office
Prior art keywords
holding
bow
tool
coupling
shaft
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.)
Expired - Lifetime
Application number
EP88121217A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0321902A1 (de
Inventor
Hans-Rudolf Zepf
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.)
DRAGO ENGINEERING AG
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
Priority to AT88121217T priority Critical patent/ATE103027T1/de
Publication of EP0321902A1 publication Critical patent/EP0321902A1/de
Application granted granted Critical
Publication of EP0321902B1 publication Critical patent/EP0321902B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E02F3/3668—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where engagement is effected by a mechanical lever or handle
    • 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
    • E02F3/3672—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where disengagement is effected by a mechanical lever or handle

Definitions

  • the invention relates to a coupling device for coupling an implement for soil and construction technology, which is attached to the end arm of a boom of a construction machine, in particular an excavator.
  • the excavator with its many design variants represents a large-scale working machine for this purpose, which in its modern design as a hydraulic excavator is particularly powerful and versatile.
  • the different embodiments relate primarily to the size and the support and locomotion means of the excavator, while for the handling of an implement all excavators are largely equipped with an extension arm, at the end of which the implement is supported by an end arm.
  • the boom is divided into boom parts, each of which is adjustable, for example by hydraulic linear motors.
  • the end arm and the implement are also adjustable, for example using hydraulic linear motors.
  • the implement is pivoted on the end arm and its position is adjusted by the linear motor.
  • US-A-4,295,287 describes a coupling device for an excavator for quickly coupling a bucket to the excavator arm and for uncoupling the same.
  • a holding bracket articulated on the excavator arm with holding means is used to hold two coupling bolts arranged on webs of the implement.
  • the holding means consist of a spoon-mouth hook and a spoon-side quick coupling.
  • the latter comprises a bearing support fastened in the holding bracket for the rotatable mounting of a slotted coupling shaft provided with a lever, in the slot of which one coupling pin is caught or released depending on the pivoting position of the coupling shaft.
  • the excavator shown in Figure 1 has a crawler track 1, on which an upper part 2 is rotatably mounted. On the upper part 2, a driver's cab 3 and a jib 4 are mounted.
  • an end arm 7 is pivotally articulated, on which an excavator bucket 8 is articulated.
  • the end arm 7 is pivoted by a hydraulic linear motor 9 relative to the boom part 6, which in turn is supported on the boom part 6.
  • a further hydraulic linear motor 10 is mounted on the arm 7, the piston rod 11 of which engages on a pivot lever 12 which is pivotably mounted on the end arm 7 and transmits the lifting movement of the linear motor 10 to the excavator bucket 8.
  • the excavator bucket 8 is provided with two joints. With one joint 14, the excavator bucket 8 is connected in an articulated manner to the end arm 7, while it is connected to the joint 15 via the link 13 and the pivot lever 12 with the hydraulic linear motor 10.
  • the linear motor 10 thus pivots the excavator bucket 8 around the joint 14. This is the normal connection between the excavator bucket 8 and the end arm 7 when the excavator is used practically exclusively with the excavator bucket 8.
  • the excavator is also used for other work, for example with a chisel, a hydraulic hammer and the like. If possible, the bucket quickly replace with another implement, the range of uses of the excavator is significantly increased.
  • FIG. 2 shows the solution according to the invention of a coupling device 18 for quickly changing work tools on the boom of an excavator.
  • the excavator bucket 8 is connected to the end arm 7 and the linear motor 10 by means of a connecting part 16, in which the joints 14, 15 are also arranged.
  • the connecting part 16 with the joints 14, 15 is expanded to form a holding bracket 19 in order to form the quick coupling.
  • the bracket 19 is essentially designed as an angle lever with two holding arms 20, 21.
  • the two holding arms 20, 21 have, as will be explained in more detail at their ends, gripping means which are also attached to the implement, i.e. arranged on the excavator bucket 8 holding means can be coupled to a fixed connection.
  • the excavator bucket 8 has an end surface 23 on which a support surface 24 is fastened against the end arm.
  • the support surface 24 has a curvature 25 on the end arm side, on which a support plate 26 is fastened.
  • the support surface 24 extends over the entire width of the excavator bucket 8 and lies between the side walls 30 thereof.
  • a holding shaft 27 is fastened by means of webs 28.
  • a bearing support 31 is fastened at a distance from the holding shaft 27 and has a bore 32 parallel to the joints 14, 15, which runs into a slot 33 that widens upwards.
  • the holding shaft 27 and the bearing support 31 form the holding means of the implement.
  • the gripping means of the holding bracket 19 are composed of a bearing half-shell 35, which is formed on the inwardly curved end of the holding arm 20 on the end arm side, and a coupling shaft 37.
  • the clutch shaft 37 is in the linear arm-side support arm rotatably mounted and is provided with a handle bracket 38, by means of which the coupling shaft 37 can be pivoted.
  • the coupling shaft 37 has a cross section reduced by a circular section 39. In the position of the circular section 39 shown in FIG. 2, the coupling shaft 37 cannot be removed from the slot 33.
  • the circular section 39 is arranged such that in a certain position of the handle bar 38, for example in the position shown in dashed lines, the coupling shaft 37 can be removed from the slot 33, but not in another position, for example in the extended position of the handle bar 38.
  • the holding bracket 19 is expediently formed from two parallel webs which are connected to one another by transverse webs 34.
  • the bearing support 31 then lies between the two retaining bracket webs.
  • FIG. 3 shows the coupling of an implement in the form of the excavator bucket 8.
  • the holding arm 20 of the holding bracket 19 engages around the holding shaft 27 with the bearing half-shell 35 arranged at its end 36, while the other holding arm 21 on the linear motor side moves in the direction of the arrow against the bearing support 31.
  • the handle bar 38 is in such a position that the coupling shaft 37 with the circular cutout 39 can be inserted into the bore 32 through the slot 33. After insertion into the bore 32, the handle bar 38 is brought into the extended position shown in Fig. 2, whereby it lies between the webs of the bracket 19 and is protected.
  • the clutch shaft is in a position in which it cannot be removed from the bore 32.
  • an elastic pressure element 40 arranged on the inside of the holding bracket 19 moves against that on the curvature 25 of the support surface 24 attached support plate 26.
  • the elastic pressure element 40 is supported on a support profile 41 fastened between the webs of the holding bracket 21.
  • the pressure element 40 can be a rubber or steel spring element which, through its pressure effect on the support plate 26, cancels any play between the holding bracket 19 and the implement 8.
  • FIG. 4-7 shows a variant of the coupling device in which the mounting of the holding arm 20 takes place in the same way as in the embodiment according to FIGS. 2 and 3 via the bearing half-shell 35 with the holding shaft 27, while in the holding arm 21 on the linear motor side a full coupling shaft 37 'Is stored.
  • a bearing half-shell 42 is attached, which abuts the coupling shaft 37 'in the coupling position, see FIG. 5.
  • the handle bar 38 is connected to a coupling shell 43 which is connected by means of a pin 44, e.g. a cross pin, with the coupling shaft 37 'is connected.
  • Two coupling shells 43 are expediently provided, as shown in FIGS. 5 and 7.
  • fasteners 45 e.g. Retaining rings with which the shaft 37 'is guided in the two webs of the bracket 19, is provided.
  • the coupling device 18 described enables the overall height between the end arm 7 and the implement 8 to be approximately the same to be kept large as in the case of an implement which is coupled directly to the joints 14 of the end arm or of the handlebar 13 with its fastening means arranged on the end face 23.
  • various other implements can be replaced quickly and easily with the coupling device described.
  • the retaining bracket 19, which consists of two webs with transverse bars 34, can be produced as a welded construction from sheet steel, the thickness of which can be chosen to be sufficiently strong (15-20 mm) in accordance with the stresses that occur.

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)
  • Earth Drilling (AREA)
EP88121217A 1987-12-22 1988-12-19 Kupplungsvorrichtung zum Ankuppeln eines Gerätes an den Ausleger einer Baumaschine Expired - Lifetime EP0321902B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121217T ATE103027T1 (de) 1987-12-22 1988-12-19 Kupplungsvorrichtung zum ankuppeln eines geraetes an den ausleger einer baumaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5004/87 1987-12-22
CH5004/87A CH675266A5 (enrdf_load_stackoverflow) 1987-12-22 1987-12-22

Publications (2)

Publication Number Publication Date
EP0321902A1 EP0321902A1 (de) 1989-06-28
EP0321902B1 true EP0321902B1 (de) 1994-03-16

Family

ID=4286282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121217A Expired - Lifetime EP0321902B1 (de) 1987-12-22 1988-12-19 Kupplungsvorrichtung zum Ankuppeln eines Gerätes an den Ausleger einer Baumaschine

Country Status (4)

Country Link
EP (1) EP0321902B1 (enrdf_load_stackoverflow)
AT (1) ATE103027T1 (enrdf_load_stackoverflow)
CH (1) CH675266A5 (enrdf_load_stackoverflow)
DE (1) DE3888492D1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11035094B1 (en) 2020-01-10 2021-06-15 Ferguson Trailer Transport, Inc. Device and method for extending material mover reach

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8914927D0 (en) * 1989-06-29 1989-08-23 Steelfab Ltd Implement attachment coupler
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
US5974706A (en) * 1997-03-10 1999-11-02 Clark Equipment Company Attachment construction for earthworking implement
DE10311927B4 (de) * 2003-03-18 2007-06-28 Liebherr-Hydraulikbagger Gmbh Schnellwechsler
DE102007017812A1 (de) * 2007-04-16 2008-10-30 Liebherr-Werk Nenzing Gmbh, Nenzing Baugerät, Mäkler und Verfahren zur Montage des Mäklers am Baugerät
GB2522420B (en) * 2014-01-22 2018-09-05 Caterpillar Work Tools Bv Exchange system for implement of machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168290C (nl) * 1978-09-25 1982-03-16 Roelof Wijnand Laan Graafmachine met een inrichting voor het koppelen van een gereedschap aan een hefinrichting.
US4225283A (en) * 1979-02-15 1980-09-30 J. I. Case Company Backhoe bucket quick coupling
US4295287A (en) * 1980-04-10 1981-10-20 J. I. Case Company Backhoe bucket quick coupler
DE3312442C2 (de) * 1983-04-07 1986-05-28 Karl Schaeff GmbH & Co, Maschinenfabrik, 7183 Langenburg Schnellwechselvorrichtung für Arbeitswerkzeuge an einem Baggerausleger
WO1985004440A1 (en) * 1984-03-29 1985-10-10 Daryl John Spencer Hitch assemblies
US4643631A (en) * 1985-04-22 1987-02-17 J. I. Case Company Quick coupling and release mechanism for buckets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11035094B1 (en) 2020-01-10 2021-06-15 Ferguson Trailer Transport, Inc. Device and method for extending material mover reach

Also Published As

Publication number Publication date
CH675266A5 (enrdf_load_stackoverflow) 1990-09-14
ATE103027T1 (de) 1994-04-15
EP0321902A1 (de) 1989-06-28
DE3888492D1 (de) 1994-04-21

Similar Documents

Publication Publication Date Title
DE3332022C2 (enrdf_load_stackoverflow)
DE69000650T2 (de) Vorrichtung zum brechen von elementen aus beton oder aehnlichem material.
DE2616011A1 (de) Schnellkuppelrahmen
DE3004834A1 (de) Umwandelbarer aufsatz fuer einen bagger, der zum ausbaggern und zum greifen geeignet ist
DE69203917T2 (de) Werkzeugwechselvorrichtung einer Erdbaumaschine.
DE2621174B2 (de) Erdbewegungsgerät mit einem am Heck eines Fahrzeuges angebrachten Tieflöffelbagger
DE69534372T2 (de) Arbeitsfahrzeug
EP0158792A1 (de) Löffelbagger
DE3344154T1 (de) Vorrichtung an einer Baggerschaufel
EP0321902B1 (de) Kupplungsvorrichtung zum Ankuppeln eines Gerätes an den Ausleger einer Baumaschine
DE8016170U1 (de) Vorrichtung zum entwurzeln von baumstuempfen
EP1245740B1 (de) Baufahrzeug mit einem Arbeitsgerät
DE2602142A1 (de) Schwenkbolzen fuer bagger-bauteile sowie verfahren zu dessen einbau
EP1623075A1 (de) Geteilter auslegerarm für bagger
DE2952450A1 (de) Tragarm, insbesondere ausleger fuer bagger o.dgl.
DE3609512C2 (de) Knickausleger-Kran
EP1727944B1 (de) Arbeitswerkzeug für eine erdbaumaschine.
DE6909386U (de) Zugpendel
DE2415107B2 (de) Lenkbares Selbstfahr-Ladegerät
DE3716911A1 (de) Arbeitsfahrzeug mit einem satz gegeneinander auswechselbarer arbeitswerkzeuge und mit einer schnellwechseleinrichtung fuer die arbeitswerkzeuge
EP0567720B1 (de) Steckbolzenverbindung
DE3448426C2 (de) Landwirtschaftliche Maschine
DE3224269A1 (de) Auswurfkruemmer fuer landwirtschaftliche maschinen
DE19713487C1 (de) Vorrichtung zur Zugentlastung bei Auslegern an Arbeitsausrüstungen von Baggern
DE3702285C2 (enrdf_load_stackoverflow)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT NL SE

17P Request for examination filed

Effective date: 19891128

17Q First examination report despatched

Effective date: 19910218

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940316

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940316

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19940316

REF Corresponds to:

Ref document number: 103027

Country of ref document: AT

Date of ref document: 19940415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3888492

Country of ref document: DE

Date of ref document: 19940421

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940324

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19941219

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19941220

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19941231

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

NLS Nl: assignments of ep-patents

Owner name: DRAGO ENGINEERING AG

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19951231

BERE Be: lapsed

Owner name: DRAGO ENGINEERING A.G.

Effective date: 19951231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960701

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19981211

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19981214

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990226

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991219

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19991219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001003

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST