EP1445385B1 - Werkzeugschnellwechselvorrichtung - Google Patents

Werkzeugschnellwechselvorrichtung Download PDF

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Publication number
EP1445385B1
EP1445385B1 EP04002724A EP04002724A EP1445385B1 EP 1445385 B1 EP1445385 B1 EP 1445385B1 EP 04002724 A EP04002724 A EP 04002724A EP 04002724 A EP04002724 A EP 04002724A EP 1445385 B1 EP1445385 B1 EP 1445385B1
Authority
EP
European Patent Office
Prior art keywords
latching
latching means
tool
mean
matching
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
EP04002724A
Other languages
English (en)
French (fr)
Other versions
EP1445385A1 (de
Inventor
Giorgio Cangini
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
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32652441&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1445385(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cangini Benne SRL filed Critical Cangini Benne SRL
Publication of EP1445385A1 publication Critical patent/EP1445385A1/de
Application granted granted Critical
Publication of EP1445385B1 publication Critical patent/EP1445385B1/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
    • E02F3/3627—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

Definitions

  • the present invention refers to the field of mechanical links and refers to a connecting device for tools fit for linking said tool to driving means such as articulated arm means of ground moving or demolition vehicles, for agricultural or for shearing devices and the like and generally to mechanically connect, in removable way, mechanical elements of different kind.
  • driving means such as articulated arm means of ground moving or demolition vehicles, for agricultural or for shearing devices and the like
  • hook device for tools such as buckets and pneumatic hammer for demolition
  • Generally, such known devices are provided with pivots or prismatic elements fit to be inserted in slots of the elements for their mutual hooking and detachable fixing. Said devices sometimes are also equipped with safety locks to block the pivots or the prismatic elements.
  • a drawback of said known devices consists in that the pivots or prismatic elements, matching the slots with the necessary slack for their engagement and for the disconnection, under the effect of the vibrations, of the impulsive strength and of the hits, they violently crash against the edges of the slots of the members having the tendency to get disconnected, to be damaged up to break the safety locks causing unfavorable and dangerous openings.
  • An object of the present invention is to propose a connecting device for tools to reduce the connecting slacks, to minimize the mutual movement of the elements of the device caused by vibrations, hits and impulsive strengths, and therefore very strong, reliable and safe.
  • numeral 1 indicates the device object of the present invention, provided with a first member 2 and of a second member 3 respectively fit to be fixed, for instance by means of a welding, to a tool 100, such as a pneumatic hammer or a bucket, and to a support 101, such as an articulated hydraulic arm of a vehicle.
  • a tool 100 such as a pneumatic hammer or a bucket
  • a support 101 such as an articulated hydraulic arm of a vehicle.
  • the members first 2 and second 3 can be mutually hinged by means of respective hook means first 5 and second 6, substantially consisting of pivots for respective hooks insertable one in the others and detachable in correspondence of a predetermined mutual orientation of the members 2, 3 in which the pivots can enter in the hooks.
  • the device is provided with an latching means 7, approximately flattened parallelepiped shaped, associated to the second member 3 and fit for detachably engaging a respective housing mean 9 of the remaining member 3 in a linking condition C in which also the hook means first 5 and second 6 are mutually constrained.
  • the latching means 7 is constrained to slide, in a sliding direction D, by sliding means 22, of plain or guide kind, of the second member 3.
  • sliding means 22 can consist of a pivot for the sliding rotation of the latching means 7.
  • the tool 100 and the support 101 transmit to each other, through the device 1, vibrations, hits and impulsive strengths mainly directed in an average strength direction S, for instance approximately coincident with the axis of a pneumatic hammer tool 100.
  • the latching means 7 is bifurcated and is provided with two wedge surfaces 10, flat and tilted in comparison to the sliding direction D and, in the linking condition C, fit for matching correspondent second flat surfaces 11 carried out in two openings separated by a stiffening leg of the housing mean 9.
  • the invention provides that the latching means is not bifurcated being provided with a single wedge surface 10 for a flat surface 11 carried out in a single opening of the housing mean 9.
  • the wedge surfaces 10 and the housing mean 9 are on sides of the members 2, 3 nearly opposite to the hook means first 5 and second 6.
  • Members 2, 3 are provided with respective means of positioning first 23 and second 24 comprising pivots and respective open slots mutually matching in the linking condition C for the consolidation of the link of the device 1.
  • the second member is equipped with two elastic means 16, of compressed helical spring type, to elastically push the latching means 7 in the sliding direction D toward the housing mean 9.
  • the latching means 7 has two safety surfaces 15, nearly perpendicular to the strength direction S, each of them being outside and adjacent to the respective wedge surface 10 with which it forms an angle different from zero, in the linking condition C.
  • the latching means 7 has a first.main face 13 nearly flat and approximately perpendicular to the strength direction S; the opposite second main face 14, parallel to the first 13, has, close to its edge transversal to the sliding direction D, the wedge surfaces 10 tilt toward the first face 13 and linking the second face 14 the same, with the respective safety surfaces 15 also approximately perpendicular to the strength direction S and therefore parallel to the main faces 13, 14.
  • each safety surface 15 is slightly tilted in opposite direction to the respective wedge surface 10 in comparison to the main faces 13, 14, or that its geometric plan contains the rotation axis of the hook means first 5 and second 6.
  • the latching means 7 is provided with a shaped hollow cutout portion 17 for a blocking means 18 hinged to the second member 3 and rotating between two extreme conditions of block of the latching means 7 to the inside N and toward the outside E in comparison to the second member 3.
  • the blocking means 18 is hook shaped to prevent the latching means 7 to slide toward the inside of the device 1, in other word, toward a condition inside N, matching a shaped protrusion 19 of the hollow cutout portion 17.
  • the blocking means 18 is rotationally hinged to the second member 3 and is rotationally operated by driving means 21 consisting of a rotation pivot fixed to the blocking means 18 and provided with an external hexagonal head for the driving by means of a nuts spanner.
  • the first member 2 is provided with a stop mean 20 consisting of a pivot with a beveled head for matching the blocking means 18 fit for, in correspondence of the link of the members 2, 3 of the device 1, partially hocking the hollow cutout portion 17 matching the blocking means 18 causing its rotation from the inside N block condition toward the outside E block condition.
  • a stop mean 20 consisting of a pivot with a beveled head for matching the blocking means 18 fit for, in correspondence of the link of the members 2, 3 of the device 1, partially hocking the hollow cutout portion 17 matching the blocking means 18 causing its rotation from the inside N block condition toward the outside E block condition.
  • device 1 provides that the members fixed to the tool and to the support are set, through the driving of the latter, in predetermines and mutual orientation for the insertion of the pivots in the hooks of the hook means first 5 and second 6 of the device.
  • the vibrations and impulsive strengths oriented along the strength direction S transmit to the latching means 7 strengths toward the inside N condition and therefore pushing the latching means 7 outside the housing mean 9, but this is prevented from the safety surface 15.
  • the matching between such latching means 7 and the housing mean 9 it would happen in correspondence of the safety surface 15 whose orientation in comparison to the strength direction S can annul, or reverse, the effect of said strengths avoiding the risk of exit.
  • An advantage of the present invention is to provide a reliable and sure connecting device for tools to reduce the linking slacks to minimize the mutual movements of the elements of the device caused by vibrations, hits and impulsive strengths and therefore very strong, reliable and safe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Connection Of Plates (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Processing Of Terminals (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Shovels (AREA)
  • Clamps And Clips (AREA)
  • Manipulator (AREA)
  • Buckles (AREA)

Claims (10)

  1. Werkzeugverbindungsvorrichtung (1) zum Verbinden eines Werkzeugs (100) mit einer Halterung (101) und bei Gebrauch zum Übertragen von Kräften zwischen dem Werkzeug (100) und der Halterung (101) hauptsächlich in einer Hauptkraftrichtung (S), mit:
    - einem ersten an dem Werkzeug (100) befestigbaren Glied (2),
    - einem zweiten an dem Werkzeug (100) befestigbaren Glied (3),
    - Einrastmitteln (7) an dem zweiten Glied (3), die zum Gleiten mit Gleitmitteln (22) der Einrastmittel (7) relativ zu dem Glied (2, 3) in einer Gleitrichtung (D) eingespannt sind, die zu der Hauptkraftrichtung (S) geneigt ist, um das eine Glied an dem anderen Glied einzurasten,
    - wobei die Einrastmittel (7) zwischen einer Einrast- und einer Nichteinrastposition verschieblich sind,
    - einem Aufnahmemittel (9) an dem anderen Glied (2) zum Ineingriffbringen mit den Einrastmitteln (7) in der eingerasteten Position,
    - wobei das Einrastglied (7) eine keilförmige Fläche (10 umfasst, die zu der Gleitrichtung (D) geneigt ist und in der Eingriffsposition mit einer zweiten, ebenen Fläche (11) des Aufnahmemittels (9) zusammengreift,
    - die Einrastmittel (7) mit einem geformten hohlen, ausgeschnittenen Abschnitt (17) für ein Blockierungsmittel (18) versehen sind, das an dem zweiten Glied (3) angelenkt ist und sich zwischen zwei Extremzusdtänden der Blockierung des Einrastmittels (7) in Richtung nach innen (N) und nach außen (E) relativ zu dem zweiten Glied dreht; wobei die Vorrichtung (1) dadurch gekennzeichnet, dass das Blockierungsmittel (18) hakenförmig ist, damit die Einrastmittel (7) nicht in Richtung zu der Innenseite der Vorrichtung (1) gleiten können, die mit einem geformten Vorsprung (19) des hohlen ausgeschnittenen Abschnitts (17) zusammengreift.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jedes Einrastmittel mindestens eine Sicherheitsfläche (15) außerhalb der mindestens einen keilförmigen Fläche (10) und angrenzend an dieselbe aufweist, mit welcher sie einen anderen Winkel als Null bildet.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass jede Sicherheitsfläche (15) fast senkrecht zu der Festigkeitsrichtung (S) liegt.
  4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das Einrastmittel (7) annähernd eine abgeflachte, parallelepipedische Form mit einer ersten, fast ebenen Hauptfläche (13) aufweist und die gegenüberliegende, zweite Hauptfläche (14) nahe an einem ihrer quer zu der Gleitrichtung (D) verlaufenden Ränder die keilförmige Fläche (10) aufweist, die in Richtung zu der ersten Fläche (13) gekippt ist und die zweite Fläche (14) mit mindestens einer zu den Hauptflächen (13, 14) parallelen Sicherheitsfläche (15) verbindet.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Hauptflächen (13, 14) annähernd senkrecht zu der Festigkeitsrichtung (S) liegen.
  6. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass jede Sicherheitsfläche (15) gegenüber den Hauptflächen (13, 14) in Gegenrichtung zu der keilförmigen Fläche (10) etwas gekippt ist.
  7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie eine Gruppe elastischer Mittel (16) zum Drücken des Gleitmittels (7) in der Gleitrichtung (D) in Richtung zu dem Aufnahmemittel (9) umfasst.
  8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie ein Betätigungsmittel (21) für das Blockierungsmittel (18) umfasst, um dieses letztere zu betätigen und es an dem zweiten Glied (3) anzulenken.
  9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das erste Glied (2) mit einem Anschlagmittel (20) ausgestattet ist, das in Entsprechung zu dem Verbinden der Glieder (2, 3) der Vorrichtung (1) zum Teil in den hohlen, ausgeschnittenen Abschnitt (17) eingreifen kann, der mit dem Blockierungsmittel (18) zusammengreift und dessen Drehung aus dem Blockierungszustand in der Innenseite (N) in Richtung zu dem Blockierungszustand in der Außenseite bewirkt.
  10. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Anschlagmittel (20) im Wesentlichen aus einem Drehzapfen mit einem abgeschrägten Kopf zum Zusammengreifen mit dem Blockierungsmittel (18) besteht.
EP04002724A 2003-02-07 2004-02-06 Werkzeugschnellwechselvorrichtung Expired - Lifetime EP1445385B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20030056 2003-02-07
IT000056A ITBO20030056A1 (it) 2003-02-07 2003-02-07 Dispositivo di connessione per utensili.

Publications (2)

Publication Number Publication Date
EP1445385A1 EP1445385A1 (de) 2004-08-11
EP1445385B1 true EP1445385B1 (de) 2006-11-22

Family

ID=32652441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04002724A Expired - Lifetime EP1445385B1 (de) 2003-02-07 2004-02-06 Werkzeugschnellwechselvorrichtung

Country Status (6)

Country Link
EP (1) EP1445385B1 (de)
AT (1) ATE346192T1 (de)
DE (1) DE602004003268T2 (de)
DK (1) DK1445385T3 (de)
ES (1) ES2276177T3 (de)
IT (1) ITBO20030056A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017099610A1 (en) * 2015-12-07 2017-06-15 Wedgelock Equipment Limited A locking device for a quick coupler
US11643787B2 (en) 2017-08-04 2023-05-09 Wedgelock Equipment Limited Quick coupler
US11702816B2 (en) 2020-01-30 2023-07-18 Wedgelock Equipment Limited Quick coupler

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20040531A1 (it) * 2004-08-20 2004-11-20 Cangini Benne Srl Dispositivo di sicurezza per la connessione di utensili
AT8623U3 (de) * 2006-03-27 2007-04-15 Baumaschinentechnik Ges M B H Vorrichtung zum befestigen von anbaugeräten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE458693B (sv) * 1982-11-19 1989-04-24 Lidkoeping Svets & Maskinprod Anordning foer loesbar sammankoppling av ett arbetsredskap och en graevmaskins manoeverarm
IT1263342B (it) * 1993-03-19 1996-08-05 Aggancio rapido autobloccante per il vincolo di benne o simili a macchine operatrici
DE9314409U1 (de) * 1993-09-23 1994-03-10 Lehnhoff Hartstahl GmbH & Co, 76534 Baden-Baden Schnellwechselvorrichtung
CH687775A5 (de) * 1994-01-11 1997-02-14 Grand Pierre Le Schnellwechselsystem fuer Loeffelbagger.
US6163989A (en) * 1997-03-10 2000-12-26 Clark Equipment Company Frame for mounting on a boom mounted quick change bracket
US6139212A (en) * 1998-02-11 2000-10-31 Rockland Manufacturing Co. Coupler for excavating machines and the like having fixed and moveable jaws
FR2809779B1 (fr) * 2000-05-31 2002-07-19 Alain Husson Dispositif de securite pour attache rapide destinee a fixer un outil a l'extremite du bras d'un chargeur ou analogue
FR2826028B1 (fr) * 2001-06-19 2003-09-05 Klac Industrie Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017099610A1 (en) * 2015-12-07 2017-06-15 Wedgelock Equipment Limited A locking device for a quick coupler
GB2560847A (en) * 2015-12-07 2018-09-26 Wedgelock Equipment Ltd A locking device for a quick coupler
GB2560847B (en) * 2015-12-07 2020-02-19 Wedgelock Equipment Ltd A locking device for a quick coupler
US11846083B2 (en) 2015-12-07 2023-12-19 Wedgelock Equipment Limited Locking device for a quick coupler
US11643787B2 (en) 2017-08-04 2023-05-09 Wedgelock Equipment Limited Quick coupler
US11702816B2 (en) 2020-01-30 2023-07-18 Wedgelock Equipment Limited Quick coupler

Also Published As

Publication number Publication date
ITBO20030056A1 (it) 2004-08-08
EP1445385A1 (de) 2004-08-11
DK1445385T3 (da) 2007-04-02
ATE346192T1 (de) 2006-12-15
DE602004003268D1 (de) 2007-01-04
ES2276177T3 (es) 2007-06-16
DE602004003268T2 (de) 2007-06-21

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