EP2011927B1 - Verschlußkeil und Verschlußvorrichtung mit solch einem Keil. - Google Patents

Verschlußkeil und Verschlußvorrichtung mit solch einem Keil. Download PDF

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Publication number
EP2011927B1
EP2011927B1 EP20080290296 EP08290296A EP2011927B1 EP 2011927 B1 EP2011927 B1 EP 2011927B1 EP 20080290296 EP20080290296 EP 20080290296 EP 08290296 A EP08290296 A EP 08290296A EP 2011927 B1 EP2011927 B1 EP 2011927B1
Authority
EP
European Patent Office
Prior art keywords
key
adapter
bearing
tooth
curve
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 - Fee Related
Application number
EP20080290296
Other languages
English (en)
French (fr)
Other versions
EP2011927A3 (de
EP2011927A2 (de
Inventor
Jean-Pierre Dorguin
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.)
Dorguin Jean-Pierre
Original Assignee
Dorguin Jean-Pierre
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 Dorguin Jean-Pierre filed Critical Dorguin Jean-Pierre
Publication of EP2011927A2 publication Critical patent/EP2011927A2/de
Publication of EP2011927A3 publication Critical patent/EP2011927A3/de
Application granted granted Critical
Publication of EP2011927B1 publication Critical patent/EP2011927B1/de
Expired - Fee Related 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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E02F9/2841—Retaining means, e.g. pins resilient

Definitions

  • the invention relates to a locking key for locking a tooth on an adapter.
  • the invention also relates to a locking device carrying a tooth, an adapter and a locking key for locking the tooth on the adapter.
  • the invention is particularly useful for equipping a bucket or a public works tool capable of being mounted at the end of a hydraulic excavator or a loader.
  • the document US 5,233,770 discloses a one-piece locking key for retaining a tooth on an adapter.
  • This key has a substantially parallelepipedal shape with a spring portion extending from the distal end upwards.
  • a retaining stop is provided to prevent the accidental loss of the key. During disassembly, it is necessary to break this retaining stopper by applying sufficient force, before extracting the key of the assembly.
  • a first object of the invention is to provide a device comprising a locking key, in which the locking key can be reused during a tooth change.
  • a second object of the invention is to allow the manufacture of the locking key by simple and economical means, preferably by cutting into a sheet, so as to obtain a piece in one piece.
  • the document US 2,901,845 discloses a one-piece locking key for retaining a tooth 12 on an adapter 15.
  • Figure 4 of the document US 2,901,845 represents a one-piece locking key 40 with a body 50 and a leaf spring 52.
  • the body 50 of the one-piece locking key bears on support faces 40 and 41 of the tooth 12, while a projection or convex protuberance 53 of the leaf spring 52 bears against a concave depression 45R of the adapter 15.
  • this projection or convex protuberance 53 of the leaf spring 52 also ensures the locking of the key 40 in the housing 45R of the adapter 15 thus fulfilling two functions.
  • this projection or convex protuberance 53 of the leaf spring 52 does not withstand forces exceeding the elastic limit of the leaf spring, which is subjected to permanent deformation and then loses the function "lock”: the assembly is loosens and does not work anymore.
  • a third object of the invention is to improve the reusable locking key of FIG. US 2,901,845 , so that the function "support" of the key is satisfactorily provided for the recovery of efforts between the tooth and the adapter.
  • the invention relates to a one-piece lock key, intended to lock a tooth on an adapter, having a curving conformation tapering, having an inner bearing contour to the curvature of the key, and having two surfaces of external support to the curvature of the key provided on either side of a locking blade forming a spring external to the curvature of the key, so as to separate the functions "support” and "locking".
  • the invention also relates to a locking device comprising an adapter, a tooth and a locking monobloc key according to the invention, characterized in combination by the fact that the tooth comprises two passages each having a key bearing surface, each key bearing surface cooperating with a bearing surface external to the curvature of the key, in that the adapter has a passage with a key bearing surface which cooperates with said inner bearing contour to the curvature of the key, and in that the adapter has a housing in which the elastic spring locking strip constantly ensures an elastic support, so as to separate the functions "support” and "locking".
  • a device according to the invention comprises an adapter 1, a tooth 2 and a key 3.
  • the adapter 1 comprises a rear portion 1a intended to be attached to an excavator bucket or a public works tool not shown, and a front part 1b shaped nose.
  • the front portion 1b is in correspondence of shape with a female cavity 2b located at the rear of the tip 2a of the tooth 2.
  • the female footprint 2b is limited by two re-entrant conformations 2c of flared contours.
  • the re-entrant conformations 2c are in shape correspondence with two fins 1 c of the adapter 1.
  • the key 3 preferably has a constant thickness and parallel flanks, so that the manufacture of the key can be performed by a cutting means in a sheet, for example by flame cutting, laser cutting, water jet cutting or any other cutting means for obtaining the key contour shown in FIGS. Figures 1 to 3 .
  • the key 3 has an inner cylindrical bearing contour 3a of constant radius, for example close to 100 mm and an outer lateral locking strip 3b forming a spring.
  • two cylindrical sector shaped bearing surfaces 3c of the same geometrical cylinder having a radius greater than the radius of the inner cylindrical portion 3a are provided.
  • the axis A of the bearing cylindrical sector 3a and the axis C of the bearing cylindrical sectors 3c are offset so that the key 3 has a generally curved and flared shape, with the exception of the leaf 3b forming a spring.
  • the tooth 2 is provided with two cylindrical bearing sectors 4 of the same radius as the cylindrical supports 3c of the key 3; and the adapter 1 is provided with a central housing 5 and a cylindrical bearing contour 6 of radius substantially less than the radius of the cylindrical bearing sector 3a.
  • the radius of the cylindrical bearing sector 3c and cylindrical bearing surfaces 4 may be arbitrary, provided that it is at least five percent greater than the radius of the cylindrical bearing sector 3a.
  • the invention also extends to the case where the radius of the cylindrical bearing sectors 3c and the bearing surfaces 4 is infinite, that is to say, in the case where these sectors and surfaces are planar and coplanar.
  • the key 3 is inserted through the upper passage of the tooth 2 and rests by its inner radius 3a on the cylindrical contour 6 of the adapter 1.
  • the lower end of the key 3 is supported on the lower chamfer of delimitation of the central housing 5.
  • the point T of contact and support of the key 3 and the cylindrical bearing contour 6 of the adapter 1 are thus aligned with the center B of the cylindrical contour 6 and the center A of the cylindrical inner surface 3a of the key 3, so as to avoid any deflected force or moment likely to loosen the key 3 against the spring 3b applied in the housing 5.
  • the spring 3b constantly exerts an elastic locking on the upper face of the housing 5 of the adapter 1 and thus prevents the recoil of the key 3 and its disengagement, by pushing the key 3 into position in the tooth 2.
  • the self weight of the key 3 is low and can not exert on the spring 3b an action likely to deform.
  • the corresponding deformation of the key 3 allows its release from the housing 5 to complete output of the key 3.
  • the output of the key 3 is then performed by progressive unwinding of the cylindrical sector 3a on the cylindrical contour 6 of the adapter 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Claims (11)

  1. Einblock-Verschlusskeil (3), der dazu bestimmt ist, einen Zahn (2) auf einem Adapter (1) zu verriegeln, der eine gekrümmte Ausbildung aufweist, indem er sich in Richtung des Eingriffs verjüngt, der eine innere Stützkontur (3a) mit der Krümmung des Keils (3) aufweist, und der zwei äußere Stützflächen (3c) mit der Krümmung des Keils (3) aufweist, die auf der einen und der anderen Seite einer elastischen Verschlusslamelle (3b) vorgesehen sind, die eine Feder außerhalb der Krümmung des Keils (3) bildet, derart, dass die Funktionen "Stützung" und "Verschluss" getrennt sind.
  2. Keil nach Anspruch 1, dadurch gekennzeichnet, dass der Keil (3) parallele Seiten mit einem inneren zylindrischen Abschnitt (3a) mit der Krümmung des Keils (3) aufweist und zwei Stützflächen (3c), die als koaxiale zylindrische Sektoren ausgebildet sind und sich auf der einen und der anderen Seite der elastischen Verschlusslamelle (3b) befinden, die eine Feder außerhalb der Krümmung des Keils (3) bildet, und dass die elastische Verschlusslamelle (3b), die die Feder bildet, dazu bestimmt ist, mit einer Aufnahme (5) eines Adapters (1) zusammenzuarbeiten.
  3. Keil nach Anspruch 1, dadurch gekennzeichnet, dass die zwei Stützflächen (3c) als ebene und koplanare Flächen ausgebildet sind.
  4. Keil nach Anspruch 1, durch ein einziges Einblock-Teil gekennzeichnet, das durch einfaches Ausschneiden aus einem Blech herstellbar ist.
  5. Keil nach Anspruch 1, durch eine Lamelle (3b) gekennzeichnet, die ausgebildet ist, um ständig eine elastische Abstützung in einer Aufnahme (5) eines Adapters (1) abzusichern, für den der Keil bestimmt ist, um dort den Keil (3) in Position zu halten.
  6. Keil nach Anspruch 1, durch eine Lamelle (3b) gekennzeichnet, deren Ende ausgebildet ist, um mit einer Ausbildung oder eine Neigung der Aufnahme (5) eines Adapters (1) zusammenzuarbeiten, für den der Keil bestimmt ist, um die Demontage des Keils (3) zu ermöglichen.
  7. Verschlussvorrichtung, die einen Adapter (1), einen Zahn (2) und einen Einblock-Verschlusskeil (3) nach Anspruch 1 aufweist, der dazu bestimmt ist, den Zahn (2) auf dem Adapter (1) zu verriegeln und eine gekrümmte Ausbildung aufweist, indem er sich in Richtung des Eingriffs verjüngt, in Kombination damit dadurch gekennzeichnet, dass der Keil (3) eine innere Stützkontur (3a), eine äußere elastische Verschlusslamelle (3b), die eine Feder bildet, und zwei äußere Stützflächen (3c) auf der einen und der anderen Seite der elastischen Verschlusslamelle (3b), die eine Feder bildet, vorgesehen sind, die eine Feder außerhalb der Krümmung des Keils (3) bildet, aufweist, und dadurch, dass der Zahn (2) zwei Durchgänge aufweist, die jeweils eine Stützfläche (4) des Keils (3) aufweisen, wobei jede Stützfläche (4) des Keils (3) mit einer äußeren Stützfläche (3c) mit der Krümmung des Keils (3) zusammenarbeitet, dadurch, dass der Adapter (1) einen Durchgang mit einer Stützfläche (6) des Keils (3) aufweist, die mit der inneren Stützkontur (3a) mit der Krümmung des Keils (3) zusammenarbeitet, und dadurch, dass der Adapter (1) eine Aufnahme (5) aufweist, in dem die elastische Verschlusslamelle (3b), die eine Feder bildet, ständig eine elastische Abstützung derart sicherstellt, dass die Funktionen "Stützung" und "Verschluss" getrennt sind.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Zahn (2) einen Hohlraum (2b) aufweist, der von zwei hohlen Konturen (2c) begrenzt wird, und der Adapter (1) einen männlichen Teil (1b) aufweist, der von zwei Flügeln (1c) gesäumt wird, um die Kräfte des Zahns (2) nach dem Verschluss durch den Keil (3) auf den Adapter (1) zu übertragen.
  9. Vorrichtung nach Anspruch 7 oder Anspruch 8, dadurch gekennzeichnet, dass der Adapter (1) eine zylindrische Stützfläche (6) mit einem Radius aufweist, der kleiner ist als der innere Krümmungsradius des Keils (3).
  10. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Stützflächen (4) des Zahns (2) und die zwei äußeren Stützflächen (3c) mit der Krümmung des Keils (3) eine selbe zylindrische Krümmung haben.
  11. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Stützflächen (4) des Zahns (2) und die äußeren Stützflächen (3c) mit der Krümmung des Keils (3) eben und koplanar sind.
EP20080290296 2007-03-30 2008-03-28 Verschlußkeil und Verschlußvorrichtung mit solch einem Keil. Expired - Fee Related EP2011927B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0702358A FR2914378B1 (fr) 2007-03-30 2007-03-30 Dispositif et clavette de verrouillage.

Publications (3)

Publication Number Publication Date
EP2011927A2 EP2011927A2 (de) 2009-01-07
EP2011927A3 EP2011927A3 (de) 2010-03-31
EP2011927B1 true EP2011927B1 (de) 2012-03-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080290296 Expired - Fee Related EP2011927B1 (de) 2007-03-30 2008-03-28 Verschlußkeil und Verschlußvorrichtung mit solch einem Keil.

Country Status (3)

Country Link
EP (1) EP2011927B1 (de)
ES (1) ES2384665T3 (de)
FR (1) FR2914378B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8943716B2 (en) 2011-10-10 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943717B2 (en) 2011-10-08 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9057177B2 (en) 2011-10-08 2015-06-16 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter

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WO2010089423A1 (es) * 2009-02-06 2010-08-12 Metalogenia, S.A. Sistema de acoplamiento entre elemento de desgaste y adaptador para maquinas excavadoras y similares, así como componentes del mismo
USD706840S1 (en) 2011-10-07 2014-06-10 Caterpillar, Inc. Tip for a ground engaging machine implement
USD707264S1 (en) 2011-10-07 2014-06-17 Caterpillar Inc. Adapter for a ground engaging machine implement
USD706839S1 (en) 2011-10-07 2014-06-10 Caterpillar, Inc. Tip for a ground engaging machine implement
USD727980S1 (en) 2014-04-08 2015-04-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD706307S1 (en) 2011-10-07 2014-06-03 Caterpillar, Inc. Adapter for a ground engaging machine implement
USD706312S1 (en) 2011-10-07 2014-06-03 Caterpiller, Inc. Tip for a ground engaging machine implement
USD707263S1 (en) 2011-10-07 2014-06-17 Caterpillar, Inc. Tip for a ground engaging machine implement
EP2829664A1 (de) * 2013-07-22 2015-01-28 Metalogenia Research & Technologies S.L. Steck- und Aufnahmeteile für eine Verschleißanordnung einer Schaufel einer Erdbewegungsmaschine
USD774567S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD775240S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD775241S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD774108S1 (en) 2015-08-12 2016-12-13 Caterpillar Inc. Tip for a ground engaging machine implement
USD774565S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD774564S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD774109S1 (en) 2015-08-12 2016-12-13 Caterpillar Inc. Tip for a ground engaging machine implement
USD775673S1 (en) 2015-08-12 2017-01-03 Caterpillar Inc. Tip for a ground engaging machine implement
USD775242S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD775243S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD774566S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD774110S1 (en) 2015-08-12 2016-12-13 Caterpillar Inc. Tip for a ground engaging machine implement
US9909285B2 (en) * 2015-09-10 2018-03-06 Caterpillar Inc. Shroud retention system for a work tool
USD803275S1 (en) 2016-12-15 2017-11-21 Caterpillar Inc. Tip for a ground engaging machine implement
USD806759S1 (en) 2016-12-15 2018-01-02 Caterpillar Inc. Tip for a ground engaging machine implement
USD803902S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD803898S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806139S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD806758S1 (en) 2016-12-15 2018-01-02 Caterpillar Inc. Tip for a ground engaging machine implement
USD803899S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD805562S1 (en) 2016-12-15 2017-12-19 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803274S1 (en) 2016-12-15 2017-11-21 Caterpillar Inc. Tip for a ground engaging machine implement
USD806141S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803897S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD840441S1 (en) 2016-12-15 2019-02-12 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803901S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806140S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD806142S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD805112S1 (en) 2016-12-15 2017-12-12 Caterpillar Inc. Tip for a ground engaging machine implement
USD803900S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD832310S1 (en) 2017-08-30 2018-10-30 Caterpillar Inc. Adapter for a ground engaging machine implement
CN108915001B (zh) * 2018-07-09 2021-10-15 成都工合科技有限公司 一种装载机前缘锁紧机构及装载机前缘
USD905765S1 (en) 2019-03-07 2020-12-22 Caterpillar Inc. Adapter for a ground engaging machine implement
USD888785S1 (en) 2019-03-07 2020-06-30 Caterpillar Inc. Adapter for a ground engaging machine implement
USD945498S1 (en) 2020-11-18 2022-03-08 Caterpillar Inc. Adapter for a ground engaging machine implement
USD945499S1 (en) 2020-11-18 2022-03-08 Caterpillar Inc. Adapter for a ground engaging machine implement

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9428886B2 (en) 2011-10-07 2016-08-30 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943717B2 (en) 2011-10-08 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9057177B2 (en) 2011-10-08 2015-06-16 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9528248B2 (en) 2011-10-08 2016-12-27 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943716B2 (en) 2011-10-10 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9546471B2 (en) 2011-10-10 2017-01-17 Caterpillar Inc. Implement tooth assembly with tip and adapter

Also Published As

Publication number Publication date
ES2384665T3 (es) 2012-07-10
FR2914378B1 (fr) 2009-10-09
EP2011927A3 (de) 2010-03-31
FR2914378A1 (fr) 2008-10-03
EP2011927A2 (de) 2009-01-07

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