EP0616084A1 - Self-locking quick coupling for fitting buckets or the like to earth-movers - Google Patents

Self-locking quick coupling for fitting buckets or the like to earth-movers Download PDF

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Publication number
EP0616084A1
EP0616084A1 EP93114408A EP93114408A EP0616084A1 EP 0616084 A1 EP0616084 A1 EP 0616084A1 EP 93114408 A EP93114408 A EP 93114408A EP 93114408 A EP93114408 A EP 93114408A EP 0616084 A1 EP0616084 A1 EP 0616084A1
Authority
EP
European Patent Office
Prior art keywords
locking element
bucket
support
coupling according
coupling
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Withdrawn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
EP93114408A
Other languages
German (de)
English (en)
French (fr)
Inventor
Luca Vaccaro
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.)
Trevi Benne SpA
Original Assignee
Trevi Benne SpA
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 Trevi Benne SpA filed Critical Trevi Benne SpA
Publication of EP0616084A1 publication Critical patent/EP0616084A1/en
Withdrawn legal-status Critical Current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
    • E02F3/3627—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
    • E02F3/364—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 present invention relates to a self-locking quick coupling for fitting buckets or the like to earth-movers.
  • Couplings are already known which are suitable to obtain, in a simple and rapid manner, an interchangeable association between buckets of different kinds and an earth-mover, for example during excavation and earth-moving work.
  • a particular type of quick coupling is composed of a supporting plate which can be fixed to the power arm of the earth-mover; elements with a curved end, suitable to fit between the upper part of the bucket and a transverse pivot thereof, extend from one side of said supporting plate.
  • a hook-like element is articulated from the opposite side of the plate and keeps a downward-facing position by virtue of elastic elements cooperating with fixing elements.
  • the hook-like element is suitable to anchor and release, by rotation, a transverse element protruding from the upper part of the bucket.
  • An aim of the present invention is to provide a quick coupling for fitting buckets or the like to earth-movers which allows to eliminate the drawbacks described above in known types and which is particularly self-locking.
  • a further aim is to provide a quick coupling which provides for the recovery of plays as they form.
  • Another important aim is to provide a quick coupling characterized by easy use and by low maintenance requirements.
  • Another important aim is to provide a quick coupling which is easy to install and adapt on current earth-movers and on current types of buckets or the like.
  • Another object is to provide a quick coupling which can be manufactured at low cost with conventional production equipment.
  • a quick coupling of the type comprising: a support which can be fixed to the power arm of an earth-mover; elements with a hook-like end, suitable to fit between the upper part of a bucket or the like and a transverse pivot thereof, extending on one side from said arm; and means for fixing to the bucket or the like extending on the opposite side from said arm; said coupling being characterized in that said fixing means comprise a locking element slidingly coupled to said support and coupled to means suitable to push it so that it fits with one end in a corresponding seat of a cross-member protruding from the upper part of said bucket or the like, said end having, on the same side as said support, an inclined surface suitable to rest against a corresponding inclined surface of said seat.
  • a self-locking quick coupling in a first embodiment, comprises a support 10 with a metallic plate 11 on top of which wings, not shown, for fixing to the power arm of an earth-mover are welded.
  • the wings 12 are furthermore connected by strengthening cross-members, designated by the reference numeral 15 at one end and by the reference numerals 16 and 17 in the region of said ends 13.
  • a block 18 is welded below the plate 11, and a locking element 20 is inserted in a through hole 19 of said block which is parallel to said plate 11; said locking element also passes through a hole 21 of the cross-member 15.
  • Said locking element 20 is coupled to a fluid-actuated piston 22 coupled between said locking element and tabs 23 which are welded to the plate 11.
  • Said piston 22 is suitable to move the locking element 20.
  • the support 10 can be coupled to the upper part of a bucket 24 of the like, appropriately provided with a pair of second longitudinal wings 25 made of thick metal plate; a large cylindrical pivot 26 is transversely welded between said wings in the region of said hook-like ends 13, the outer surface of said pivot being complementary to that of said half-shell 14.
  • a cross-member 27 is welded to the bucket 24 in the region of the free end of said locking element 20; when the coupling is in closed position, said cross-member is not orthogonal to the direction of translatory motion of the locking element 20.
  • Said cross-member 27 has a hole 28 for the insertion of the end 29 of said locking element 20.
  • the walls of the hole 28 are therefore inclined with respect to the direction of translatory motion of the locking element 20.
  • the upper surface 30 of the end 29 is inclined (chamfered) so as to rest on the corresponding upper wall of the hole 28.
  • a first step the hook-like ends 13 are coupled to the pivot 26 and then the support 10 is rotated about said pivot.
  • the locking element 20 By actuating the fluid-actuated piston 22, the locking element 20 is caused to retract and then, once rotation is completed, is caused to move so as to enter the hole 28, completing the coupling.
  • a support 110 comprising a metal plate 111 with parallel wings 112 and hook-like ends 113 with a half-shell 114 to be coupled to the pivot 126, welded between the second wings 125.
  • cross-members 115, 116 and 117 between the first wings 112, as well as a block 118 with a hole 119 in which a locking element 120 can slide but now said locking element is associated with a threaded axial pin 122a which, by passing through a tab 123, screws in said tab and supports an elastic means 122, such as a rubber bushing, which keeps the locking element 120 constantly pushed so that it protrudes from the cross-member 115.
  • the elastic pusher means 122 act only in one direction, and due to this reason a perpendicular pin 132 is fixed on said locking element 120 by means of a screw 131 passing through it in an axial through hole; said pin 132 protrudes from a slotted hole 133 of the plate 111.
  • Another pin 134 is welded to said plate 111.
  • a lever-like tool 135, as shown in figure 8, is suitable to use the pin 134 as a fulcrum and to push backward the pin 132, compressing the rubber-type bushing and moving the locking element 120 so that it disengages from the hole 128.
  • the materials employed may be any according to the requirements.

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)
EP93114408A 1993-03-19 1993-09-08 Self-locking quick coupling for fitting buckets or the like to earth-movers Withdrawn EP0616084A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD930065 1993-03-19
ITPD930065A IT1263342B (it) 1993-03-19 1993-03-19 Aggancio rapido autobloccante per il vincolo di benne o simili a macchine operatrici

Publications (1)

Publication Number Publication Date
EP0616084A1 true EP0616084A1 (en) 1994-09-21

Family

ID=11390247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93114408A Withdrawn EP0616084A1 (en) 1993-03-19 1993-09-08 Self-locking quick coupling for fitting buckets or the like to earth-movers

Country Status (2)

Country Link
EP (1) EP0616084A1 (it)
IT (1) IT1263342B (it)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403490B (de) * 1996-01-15 1998-02-25 Franz Winkelbauer Kupplungseinrichtung
EP1033447A2 (en) * 1999-03-02 2000-09-06 Mantovanibenne S.r.l. A device for rapid tool coupling and release on tool arms.
WO2004029368A1 (en) * 2002-09-25 2004-04-08 Dbt Australia Pty Limited Rapid attach system
EP1445385A1 (en) * 2003-02-07 2004-08-11 Cangini Benne S.R.L. Tool quick coupler
FR2852615A1 (fr) * 2003-03-18 2004-09-24 Liebherr Hydraulikbagger Changeur rapide servant a accoupler un outil notamment a la fleche d'une pelle excavatrice
EP1522635A2 (de) 2003-10-09 2005-04-13 WIMMER, Alois Schnellwechselkupplung zur Befestigung der Arbeitswerkzeuge an einem Baggerausleger
EP2107166A2 (de) 2006-03-27 2009-10-07 Baumaschinentechnik Gesellschaft m.b.H. Anbauplatte für Schnellwechselvorrichtung
DE102010034738A1 (de) 2009-08-21 2011-02-24 Perwein Baumaschinen-Systeme Gmbh Kupplungsvorrichtung
CN103046595A (zh) * 2012-12-24 2013-04-17 三一重机有限公司 挖掘机及其快换装置
DE102009038312B4 (de) * 2009-08-21 2015-10-22 Robert Riedlberger Lösbares Verbindungsmittel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143074A1 (de) * 1983-09-15 1985-05-29 Fredi Stury AG Bagger
EP0273828A1 (fr) * 1986-12-26 1988-07-06 Ardennes Equipment S.A. Dispositif d'attache rapide pour équipements d'engins de génie civil et de manutention
GB2239445A (en) * 1989-12-22 1991-07-03 Trevor Frederick Frank Hodges Coupling for excavator arm

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143074A1 (de) * 1983-09-15 1985-05-29 Fredi Stury AG Bagger
EP0273828A1 (fr) * 1986-12-26 1988-07-06 Ardennes Equipment S.A. Dispositif d'attache rapide pour équipements d'engins de génie civil et de manutention
GB2239445A (en) * 1989-12-22 1991-07-03 Trevor Frederick Frank Hodges Coupling for excavator arm

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403490B (de) * 1996-01-15 1998-02-25 Franz Winkelbauer Kupplungseinrichtung
EP1033447A2 (en) * 1999-03-02 2000-09-06 Mantovanibenne S.r.l. A device for rapid tool coupling and release on tool arms.
EP1033447A3 (en) * 1999-03-02 2000-12-06 Mantovanibenne S.r.l. A device for rapid tool coupling and release on tool arms.
US6332732B1 (en) 1999-03-02 2001-12-25 Mantovanibenne S.R.L. Device for rapid tool coupling and release on tool arms
WO2004029368A1 (en) * 2002-09-25 2004-04-08 Dbt Australia Pty Limited Rapid attach system
EP1445385A1 (en) * 2003-02-07 2004-08-11 Cangini Benne S.R.L. Tool quick coupler
FR2852615A1 (fr) * 2003-03-18 2004-09-24 Liebherr Hydraulikbagger Changeur rapide servant a accoupler un outil notamment a la fleche d'une pelle excavatrice
US7086804B2 (en) 2003-03-18 2006-08-08 Liebherr-Hydraulikbagger Gmbh Quick-change attachment
AT500900A1 (de) * 2003-10-09 2006-04-15 Wimmer Alois Ing Schnellwechselkupplung zur befestigung der arbeitswerkzeuge an einem baggerausleger
EP1522635A2 (de) 2003-10-09 2005-04-13 WIMMER, Alois Schnellwechselkupplung zur Befestigung der Arbeitswerkzeuge an einem Baggerausleger
AT500900B1 (de) * 2003-10-09 2007-06-15 Wimmer Alois Ing Schnellwechselkupplung zur befestigung der arbeitswerkzeuge an einem baggerausleger
EP2107166A2 (de) 2006-03-27 2009-10-07 Baumaschinentechnik Gesellschaft m.b.H. Anbauplatte für Schnellwechselvorrichtung
EP2107166A3 (de) * 2006-03-27 2010-03-17 Baumaschinentechnik Gesellschaft m.b.H. Anbauplatte für Schnellwechselvorrichtung
DE102010034738A1 (de) 2009-08-21 2011-02-24 Perwein Baumaschinen-Systeme Gmbh Kupplungsvorrichtung
DE102009038312B4 (de) * 2009-08-21 2015-10-22 Robert Riedlberger Lösbares Verbindungsmittel
CN103046595A (zh) * 2012-12-24 2013-04-17 三一重机有限公司 挖掘机及其快换装置
CN103046595B (zh) * 2012-12-24 2015-03-18 三一重机有限公司 挖掘机及其快换装置

Also Published As

Publication number Publication date
ITPD930065A0 (it) 1993-03-19
IT1263342B (it) 1996-08-05
ITPD930065A1 (it) 1994-09-19

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