EP3312350A1 - Vorrichtung für die kupplung zwichen arm und werkzeug einer arbeitsmaschine - Google Patents

Vorrichtung für die kupplung zwichen arm und werkzeug einer arbeitsmaschine Download PDF

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Publication number
EP3312350A1
EP3312350A1 EP17202832.6A EP17202832A EP3312350A1 EP 3312350 A1 EP3312350 A1 EP 3312350A1 EP 17202832 A EP17202832 A EP 17202832A EP 3312350 A1 EP3312350 A1 EP 3312350A1
Authority
EP
European Patent Office
Prior art keywords
quick coupling
auxiliary locking
hydraulic
tool
bolt
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
EP17202832.6A
Other languages
English (en)
French (fr)
Other versions
EP3312350B1 (de
Inventor
Davide Cangini
Marco Faedi
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.)
Cangini Benne SRL
Original Assignee
Cangini Benne SRL
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Filing date
Publication date
Application filed by Cangini Benne SRL filed Critical Cangini Benne SRL
Publication of EP3312350A1 publication Critical patent/EP3312350A1/de
Application granted granted Critical
Publication of EP3312350B1 publication Critical patent/EP3312350B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • 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
    • E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes

Definitions

  • connection apparatus of the type forming the subject matter of the present invention is adapted to connect mechanical elements of various kinds, and is particularly suitable to connect, mechanically and in a removable manner, a bucket, or another tool for demolition, for earth movement, for the care of green spaces and the like to an arm or to a support of a heavy machine, such as a tractor or a bulldozer.
  • This prior art connection apparatus is provided with a first member stably connected to the tool and with a second member stably connected to the mechanical arm.
  • one side of a member is provided with a transverse pin for coupling a corresponding side of the other member.
  • the two members can rotate mutually like a hinge.
  • one of these members is equipped with one or more bolts, which slide between a first released configuration and a second configuration locking the two members together.
  • the operating axis of the insertion and/or extraction forces is in any case offset relative to the operating axis of the bolts.
  • the main object of the present invention is the creation of a quick coupling with none of the problems described above and that is also easy and cost-effective to manufacture.
  • a further object of the present invention is to provide a connection apparatus, comprising a quick coupling of the aforesaid type, which has none of the problems listed above.
  • connection apparatus forming the subject matter of the present invention both the operating axis of the engagement forces and that of disengagement coincide with the movement axis of the bolts, as the hydraulic actuating cylinder has been incorporated inside at least one locking bolt.
  • connection device in order to increase the degree of safety of the connection device, further measures have been introduced, aimed at minimizing, or totally eliminating, the possibility of malfunction or breakage of any component of the device causing detachment of the tool from the operating arm.
  • auxiliary locking device provided with an operating axis parallel to that of the locking bolts, but which moves in the opposite direction.
  • the hydraulic cylinder of the aforesaid auxiliary locking device is operated to insert an auxiliary locking device capable of preventing disengagement of a transverse pin of the adapter from a slot of the quick coupling.
  • the movement to make safe the auxiliary locking device is also favored by the presence of a spring inside the hydraulic cylinder thereof.
  • This spring ensures extension of the auxiliary locking element in all conditions and therefore prevents disengagement of the slot from one of the transverse pins of the adapter, when, for any reason, the hydraulic supply to the cylinder is absent.
  • the numeral 100 indicates as a whole a connection apparatus between a tool (U) and an operating arm (not shown).
  • this tool (U) is a bucket
  • this tool (U) can be any other tool for demolition, for earth movement, for the care of green spaces and the like.
  • connection apparatus 1000 in turn comprises first coupling means 100 to the tool (U), and second coupling means 200 to the operating arm (not illustrated).
  • the first coupling means 100 to the tool (U) comprise two mutually parallel ribs 101.
  • the assembly of the two ribs 101, of the two transverse pins 102 and of a base plate 103 form the aforesaid first coupling means 100, also referred to as "adapter".
  • this adapter 100 is fastened to the tool (U) by welding.
  • the second coupling means 200 comprise, in turn, a quick coupling 250, to which there are fastened two ribs 260 having mechanical means that allow coupling thereof with the arm of the heavy machine.
  • the quick coupling 250 is shown in particular in Figs. 4 and 5 , and comprises a main body 252, substantially box-shaped, inside which there is produced an inner compartment 253 provided with specific seats for housing the devices required for its operation.
  • the main body 252 is substantially shaped as a hollow rectangular parallelepiped. On each of the lower sides of the parallelepiped there is provided a fork-shaped seat 254 adapted to couple, in use with one of the two transverse pins 102 of the adapter 100 ( Figs. 1 , 2 and 3 ).
  • the inner compartment 253 in use, is closed at the top by an upper cover 255, which is sized to engage in a rectangular slot 255' produced in an upper face 252' of the main body 252; moreover, the inner compartment 253 is closed at the bottom by a lower cover 256, also sized to engage in a rectangular slot 256'.
  • two lateral abutments 257 selected as a function of the width of the adapter 100 to which the quick coupling 250 is to be coupled.
  • Two through holes 258A pass through a first lower side 258, while a single through hole 259A passes through a second lower side (opposite the first lower side 258).
  • auxiliary locking element 280 which is part of an auxiliary locking device 290, better described below, protrudes outward from the through hole 259. It is considered useful to specify that the auxiliary locking device 290 is an integral part of the quick coupling 250.
  • the auxiliary locking element 280 has two flattened horizontal sides for the purpose of facilitating coupling thereof with one of the two pins 102 of the adapter 100.
  • the inner compartment 253 there are housed (at least partly) the following devices:
  • the auxiliary locking element 280 presses in a position above the other pin 102, clamping this pin 102 with the underlying part of each seat 254.
  • the main body 252 is delimited at the top on the opposite side to the through holes 258A by a protruding section 251, which extends to cover the auxiliary locking element 280 at the top in a manner substantially mating with a respective lower face 251', visible in Fig. 3 .
  • This section 251 is adapted, in use, to oppose any transverse shifting (upward in Fig. 3 ) of the auxiliary locking device 280, and hence this section 251 is a safety member that contributes to strengthen the hold of the corresponding pin 102 inside the fork-shaped seats 254 produced by the auxiliary locking element 280, positioning it stably relative to the corresponding pin 102.
  • the auxiliary locking device 290 is arranged so that the auxiliary locking element 280 is arranged along a further longitudinal axis (Y) parallel to the operating axes (X) of the bolts 270. Moreover, it is important to note that the axis Y is parallel to the axes X and at a level such that the lower edge of the locking element 280 is tangent to the pin 102.
  • a spring 284 which is adapted to return the cylinder 281 to the locked position if the hydraulic supply is absent, producing another safety device associated with the quick coupling 250.
  • the hydraulic supply of the bolts 270 takes place through passages produced in the respective rods 270.
  • a pilot-operated check valve 283 that prevents uncontrolled movements of the system if the hydraulic supply pipes are disconnected or damaged.
  • the main advantage of the quick coupling forming the main subject matter of the present invention consists in the fact of having eliminated the offsets between the axes of the bolts and related actuator systems, in this way overcoming the problem of binding of the bolts after insertion. Moreover, use of the auxiliary locking device allows the quick coupling to be made safe.
  • An embodiment of the invention can further relate to a quick coupling 250 of a tool U to an arm of a heavy machine, the quick coupling 250 comprising a main body 252, substantially box-shaped, provided with an inner compartment 253 containing actuator means 275 of at least one bolt element 270 adapted to engage with complementary means 102 provided on an adapter 100 integral with said tool U; said at least one bolt element 270 being shaped so as to receive therein at least a double-acting hydraulic actuation system 275 adapted to move said at least one bolt element 270 forward from a retracted disengaged position to an extended position engaged with a first element 102 of the adapter 100, so that the thrust exerted by said hydraulic actuation system 275 has an operating axis substantially coincident with a longitudinal axis X of said at least one bolt element 270; wherein the quick coupling 250 comprises an auxiliary locking device 290 comprising in turn at least one auxiliary locking element 280, and in that said at least one auxiliary locking element 280 can be moved forward from
  • said at least one bolt element 270 comprises a rod 271 and in that the hydraulic supply of the actuator takes place through appropriate passages produced inside the rod 271 that operates said at least one bolt element 270, this hydraulic supply being able to be conveyed inside said rod 271 through a hydraulic distribution board 272 that has been suitably machined internally for passage of the hydraulic fluid and to which there are fastened suitable hydraulic connectors.
  • said auxiliary locking device 290 comprises a hydraulic chamber 281B containing therein elastic means 284.
  • said auxiliary locking device 290 is hydraulically connected with a check valve 283.
  • said main body 252 has safety means 251 adapted to oppose transverse shifting of said auxiliary locking element 280 relative to the corresponding said second element 102.
  • said safety means 251 comprise a protruding section 251, which covers said auxiliary locking element 280 in a manner substantially mating with a respective lower face 251' to position it stably relative to said second element 102.
  • An embodiment of the invention can further relate to a connection apparatus 1000 which comprises at least one quick coupling 250 according to any of the previous embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Forging (AREA)
EP17202832.6A 2013-07-10 2014-07-04 Vorrichtung für die kupplung zwichen arm und werkzeug einer arbeitsmaschine Active EP3312350B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000357A ITBO20130357A1 (it) 2013-07-10 2013-07-10 Attacco rapido, e relativa apparecchiatura di connessione, di un utensile ad un braccio di azionamento
EP14175847.4A EP2824243B1 (de) 2013-07-10 2014-07-04 Vorrichtung für die Kupplung zwichen Arm und Werkzeug einer Arbeitsmaschine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP14175847.4A Division EP2824243B1 (de) 2013-07-10 2014-07-04 Vorrichtung für die Kupplung zwichen Arm und Werkzeug einer Arbeitsmaschine

Publications (2)

Publication Number Publication Date
EP3312350A1 true EP3312350A1 (de) 2018-04-25
EP3312350B1 EP3312350B1 (de) 2020-11-11

Family

ID=49118599

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17202832.6A Active EP3312350B1 (de) 2013-07-10 2014-07-04 Vorrichtung für die kupplung zwichen arm und werkzeug einer arbeitsmaschine
EP14175847.4A Not-in-force EP2824243B1 (de) 2013-07-10 2014-07-04 Vorrichtung für die Kupplung zwichen Arm und Werkzeug einer Arbeitsmaschine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14175847.4A Not-in-force EP2824243B1 (de) 2013-07-10 2014-07-04 Vorrichtung für die Kupplung zwichen Arm und Werkzeug einer Arbeitsmaschine

Country Status (3)

Country Link
EP (2) EP3312350B1 (de)
IT (1) ITBO20130357A1 (de)
NO (1) NO2824243T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3770330A1 (de) 2019-07-25 2021-01-27 Rädlinger Maschinen- und Stahlbau GmbH Schnellwechsler
DE102022125112A1 (de) 2022-09-29 2024-04-04 OilQuick Deutschland KG Schnellwechsler

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017079792A1 (en) * 2015-11-09 2017-05-18 Elite Attachments Australia Pty Ltd A piston and cylinder system
GB2544746A (en) 2015-11-24 2017-05-31 Caterpillar Work Tools Bv Apparatus and method for assembling work tool to a machine
IT201800003422A1 (it) * 2018-03-09 2019-09-09 Cangini Benne Srl Attacco rapido
SE545709C2 (en) * 2022-04-13 2023-12-12 Steelwrist Ab Lock indicator arrangement and method for a quick coupler and quick coupler comprising the same
DE102022121104A1 (de) * 2022-08-22 2024-02-22 emtec Engineering & Maschinentechnik GmbH Ankoppelvorrichtung und mobile Arbeitsmaschine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243066A (en) * 1964-01-20 1966-03-29 Caterpillar Tractor Co Quick change means for loader attachments
NL7900631A (nl) * 1979-01-26 1980-07-29 Interparts B V Inrichting voor het vastzetten van de giek van een hydraulische kraan aan een graafbak of dergelijke.
EP0615023A1 (de) * 1993-03-10 1994-09-14 Jean-Marie Gérard René Koehl Gerät zum rotationsfähigen Einbau eines Arms oder dergleichen zwischen zwei Teilen eines gabelförmigen Elementes
DE20215590U1 (de) * 2001-10-11 2003-03-06 Wimmer Alois Schnellkupplung zum Befestigen von Arbeitswerkzeugen an einem Baggerausleger
EP1900880A2 (de) * 2006-09-12 2008-03-19 Cangini Benne S.R.L. Vorrichtung zur Verbindung eines Werkzeugs mit einem Antriebsmittel einer Arbeitsmaschine
WO2008051095A2 (en) * 2006-10-26 2008-05-02 J B Sales International Limited A coupler
WO2009137576A1 (en) * 2008-05-07 2009-11-12 Jrb Attachments, Llc Zero offset loader coupling system and components
WO2012061895A1 (en) * 2010-11-12 2012-05-18 Positti, Nicole Elizabeth A hydraulic hitch assembly
EP2584099A1 (de) * 2010-06-21 2013-04-24 Caterpillar SARL Schnellkopplungsschaltung für eine baumaschine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243066A (en) * 1964-01-20 1966-03-29 Caterpillar Tractor Co Quick change means for loader attachments
NL7900631A (nl) * 1979-01-26 1980-07-29 Interparts B V Inrichting voor het vastzetten van de giek van een hydraulische kraan aan een graafbak of dergelijke.
EP0615023A1 (de) * 1993-03-10 1994-09-14 Jean-Marie Gérard René Koehl Gerät zum rotationsfähigen Einbau eines Arms oder dergleichen zwischen zwei Teilen eines gabelförmigen Elementes
DE20215590U1 (de) * 2001-10-11 2003-03-06 Wimmer Alois Schnellkupplung zum Befestigen von Arbeitswerkzeugen an einem Baggerausleger
EP1900880A2 (de) * 2006-09-12 2008-03-19 Cangini Benne S.R.L. Vorrichtung zur Verbindung eines Werkzeugs mit einem Antriebsmittel einer Arbeitsmaschine
WO2008051095A2 (en) * 2006-10-26 2008-05-02 J B Sales International Limited A coupler
WO2009137576A1 (en) * 2008-05-07 2009-11-12 Jrb Attachments, Llc Zero offset loader coupling system and components
EP2584099A1 (de) * 2010-06-21 2013-04-24 Caterpillar SARL Schnellkopplungsschaltung für eine baumaschine
WO2012061895A1 (en) * 2010-11-12 2012-05-18 Positti, Nicole Elizabeth A hydraulic hitch assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3770330A1 (de) 2019-07-25 2021-01-27 Rädlinger Maschinen- und Stahlbau GmbH Schnellwechsler
DE102022125112A1 (de) 2022-09-29 2024-04-04 OilQuick Deutschland KG Schnellwechsler

Also Published As

Publication number Publication date
EP3312350B1 (de) 2020-11-11
ITBO20130357A1 (it) 2015-01-11
EP2824243B1 (de) 2017-11-22
EP2824243A1 (de) 2015-01-14
NO2824243T3 (de) 2018-04-21

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