EP0353454B1 - Dispositif d'attelage rapide de pelles, notamment sur un engin de terrassement - Google Patents

Dispositif d'attelage rapide de pelles, notamment sur un engin de terrassement Download PDF

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Publication number
EP0353454B1
EP0353454B1 EP19890111607 EP89111607A EP0353454B1 EP 0353454 B1 EP0353454 B1 EP 0353454B1 EP 19890111607 EP19890111607 EP 19890111607 EP 89111607 A EP89111607 A EP 89111607A EP 0353454 B1 EP0353454 B1 EP 0353454B1
Authority
EP
European Patent Office
Prior art keywords
hook
bucket
elements
combination 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.)
Expired - Lifetime
Application number
EP19890111607
Other languages
German (de)
English (en)
Other versions
EP0353454A1 (fr
Inventor
Tiberio 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.)
Vtn Benne Srl
Original Assignee
Vtn 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
Priority claimed from IT8841640A external-priority patent/IT1225229B/it
Priority claimed from IT8841704A external-priority patent/IT1225881B/it
Application filed by Vtn Benne Srl filed Critical Vtn Benne Srl
Priority to AT89111607T priority Critical patent/ATE89359T1/de
Publication of EP0353454A1 publication Critical patent/EP0353454A1/fr
Application granted granted Critical
Publication of EP0353454B1 publication Critical patent/EP0353454B1/fr
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
    • E02F3/3622—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
    • E02F3/3631—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 transversal 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
    • E02F3/3645—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with auto-engagement means for automatic snap-on of the tool coupler part
    • 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
    • E02F3/3672—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 present invention relates to a combination of a quick mount and a bucket particularly for fixing buckets to earth-moving machines.
  • Two operators are furthermore always required to perform the mount: one for maneuvering the earth-moving machine, the other one for inserting said dowels.
  • US-A-4 355 945 which discloses the features of the preamble of claim 1, shows a hitch component for mounting a bucket to a boom.
  • the hitch component has its upper side connectable to the boom, and is provided with, at one end thereof, a notch which engages with a first bar on the bucket.
  • a pivoting locking arm actuated by a hydraulic jack, engages with a second bar provided on the bucket.
  • the aim of the present invention is to eliminate the disadvantages described above in the known art by providing a quick mount capable of achieving the substantially immediate replacement of buckets of various sizes and kinds on earth-moving machines.
  • a consequent primary object is to provide a quick mount, particularly for fixing buckets to earth-moving machines, which allows the machine operator to perform the replacement operation autonomously.
  • Another important object is to provide a quick mount characterized by easy use and complete absence of maintenance.
  • Another object is to provide a quick mount which can be easily installed and adapted to current earth-moving machines and to current kinds of buckets.
  • Not least object is to provide a quick mount which can be manufactured at low costs with current production systems.
  • a quick mount according to the invention is generally indicated, in a first embodiment, by the reference numeral 1 and comprises a support constituted by a metallic plate 2; two first parallel wings 3, made of thick sheet metal, are upwardly and longitudinally welded orthogonally to said plate; said wings are provided, at their ends, with coaxial pairs of transverse holes 4 and 5 for fixing to the operating arm of an earth-moving machine.
  • the end of the arm 6 is conveniently articulated between said holes 4, while the end of a lever system 7 actuated by a hydraulic piston 8 is articulated between said holes 5.
  • a half-shell 12 conveniently made by diametrically cutting a metal tube, is transversely welded between the two ends 11 of the elements 10.
  • a transversely perforated element 13 for the pivoting ot a tubular element 14 is upwardly welded in a substantially orthogonal position at the end of each second wing 9 which is arranged opposite to the articulation of the arm 6.
  • the rotoidal coupling between the pair of elements 13 and the tubular element 14 is achieved by inserting, in appropriate end seats of said element 14, elastic means 15 of the kind commonly termed “silent block” and by then inserting axially to said elastic means a threaded pin 16 provided with a locking nut.
  • a hook 17 is welded radially to said tubular element 14; said hook is substantially composed of a metal plate 18 which has a metal strip 19 welded to its free end on its outer side; said strip has an outer rounding 20 which in practice joins the two surfaces which are not adapted to be coupled.
  • Said hook 17 is kept arranged downwards and substantially orthogonal to said plate 2 as it is rigidly associated by means of bolts to an element 21 which protrudes downwards from said plate 2.
  • An elastic rubber element 22 is interposed between said hook 17 and the element 21; its compression allows said hook a certain degree of rotation about the pivot 16.
  • a bush 23 is transversely welded on the tubular element 14 in a position diametrically opposite to said hook 17; the end of a lever 24 can be inserted in said bush, said lever allowing the above mentioned rotation when manually actuated.
  • the quick mount 1 can be associated with the upper portion of a bucket 25 which is conveniently provided with a pair of third longitudinal wings 26 made of thick sheet metal, between which a large cylindrical pivot 27 is transversely welded on the side of said elements 10; the outer surface of said pivot 27 is shaped complementarily to the inner surface of said half shell 12.
  • a crosspiece 28 is welded to the bucket 25 on the side of said hook 17; said crosspiece is upwardly chamfered and downwardly shaped complementarily with respect to the coupling regions of said hook.
  • FIGS 3, 4 and 5 illustrate a first step of approach of the operating arm 6 to the bucket 25, with the mount 1 in a substantially vertical position due to the traction exerted on the lever system 7 by the hydraulic piston 8.
  • a second step consists in inserting the half-shell 12 between the pivot 27 and the upper part of said bucket 25.
  • the mount 1 By subsequently actuating the lever system 7 by means of the hydraulic piston 8, the mount 1 is rotated about the pivot 27 until the rounded portion 20 of the hook 17 makes contact with the chamfered portion of the crosspiece 28.
  • the crosspiece 28 forces the hook 17 to rotate about its articulation pivot until it stably engages.
  • Said bushes are in fact subject to considerable wear, since they are heavily stressed during the use of the bucket.
  • the invention is furthermore composed of simple elements which can be mutually assembled without difficulty, and this makes it constructively convenient and competitive as regards its sales price.
  • 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)
  • Load-Engaging Elements For Cranes (AREA)

Claims (9)

  1. Combinaison d'un dispositif d'attelage rapide et d'un godet, en particulier pour fixer ledit godet à des engins de terrassement, comprenant un support (2) qui peut être monté à l'extrémité du bras d'actionnement (6) d'un engin de terrassement, des éléments (10) ayant une extrémité courbe (11) orientée vers le bas à partir du support sur une face, ladite extrémité courbe étant conçue pour être introduite entre la partie supérieure du godet (25) et un pivot transversal d'accouplement (27) de ce godet et, sur la face opposée, des moyens (17) pour accoupler le godet, lesdits moyens d'accouplement du godet comprenant un élément (17) du genre d'un crochet articulé sur le support et sollicité vers une position fermée et bloquée par rapport à une traverse (28) du godet (25), ledit élément (17) pouvant être dégagé de la traverse (28) au moyen d'une rotation, l'attelage rapide étant caractérisé en ce que les moyens d'accouplement au godet comprennent en outre des moyens élastiques (22) pour solliciter ledit élément (17) vers sa position fermée et bloquée, de manière que ledit élément (17) puisse être dégagé de la traverse (28) grâce à une rotation de ce crochet en s'opposant à l'action du moyen élastique (22).
  2. Combinaison selon la revendication 1, caractérisée en ce que l'élément (17) est maintenu dans une position orientée vers le bas grâce aux moyens élastiques (22) qui coopèrent avec des moyens fixes (21), les moyens élastiques étant constitués d'un élément élastique en caoutchouc intercalé entre ledit élément (17) et les moyens fixes (21).
  3. Combinaison selon la revendication 1 ou 2, caractérisée en ce que le support est constitué par une plaque (2), au-dessus de laquelle deux premières ailettes parallèles (3) sont soudées longitudinalement dans une configuration sensiblement orthogonale, lesdites ailettes avant, à leurs extrémités, des paires co-axiales d'orifices transversaux (4, 5) pour la fixation audit bras d'actionnement d'un engin de terrassement, l'extrémité dudit bras et l'extrémité d'un système de levier (7) actionné par un vérin hydraulique (8) étant articulées entre ces orifices.
  4. Combinaison selon la revendication 3, caractérisée en ce que deux secondes ailettes parallèles (9) sont soudées longitudinalement au-dessous de ladite plaque, l'un desdits éléments (10) ayant des extrémités courbes qui s'étendent vers le bas à partir d'une extrémité de chacune desdites ailettes sur la face de l'articulation avec ledit bras d'actionnement, la forme de ladite extrémlité étant en arc de cercle orienté vers l'extérieur.
  5. Combinaison selon la revendication 4, caractérisée en ce qu'une demi-coquille (12) est soudée transversalement entre les extrémités courbes (11) des éléments (10), la demi-coquille et les éléments à extrémité courbe pouvant être insérés entre la partie supérieure du godet et le pivot transversal de ce godet, qui est monté entre deux troisièmes ailettes longitudinales qui s'étendent à partir de celle-ci.
  6. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément (17) en forme de crochet est soudé radialement à un élément tubulaire (14) articulé entre des éléments de pivotement sensiblement orientés vers le haut perpendiculairement à la plaque à l'extrémité opposée de l'articulation avec ledit bras d'actionnement, le couplage en rotation étant assuré en introduisant des moyens élastiques (15) dans des sièges d'extrémité appropriés de l'élément tubulaire et en introduisant ensuite dans l'axe des moyens élastiques un pivot fileté (16) avec un écrou de blocage.
  7. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément (17) en forme de crochet est sensiblement constitué d'une plaque (18), avec une bande (19) soudée à son extrémité libre, sur sa face extérieure, ladite bande ayant un chanfrein qui s'applique aux deux côtés non appropriés à l'accouplement.
  8. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément (17) en forme de crochet garde une position orientée vers le bas sous l'effet des éléments de fixation, qui font saillie vers le bas à partir de la plaque et sont fixés à l'élément en forme de crochet par boulonnage, lesdits éléments élastiques (22) étant intercalés entre les éléments de fixation (21) et les éléments (17).
  9. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément transversal qui fait saillie de la partie supérieure du godet (25) est composé d'une traverse (28) chanfreinée vers le haut et qui, vers le bas comporte une forme complémentaire de celle des région d'accouplement dudit élément en forme de crochet.
EP19890111607 1988-07-20 1989-06-26 Dispositif d'attelage rapide de pelles, notamment sur un engin de terrassement Expired - Lifetime EP0353454B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89111607T ATE89359T1 (de) 1988-07-20 1989-06-26 Vorrichtung zum schnellen anschliessen einer schaufel, insbesondere an einer erdbewegungsmaschine.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT4164088 1988-07-20
IT8841640A IT1225229B (it) 1988-07-20 1988-07-20 Aggancio rapido particolarmente per il vincolo di benne a macchine operatrici.
IT4170488 1988-10-28
IT8841704A IT1225881B (it) 1988-10-28 1988-10-28 Aggancio rapido per benne.

Publications (2)

Publication Number Publication Date
EP0353454A1 EP0353454A1 (fr) 1990-02-07
EP0353454B1 true EP0353454B1 (fr) 1993-05-12

Family

ID=26329137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890111607 Expired - Lifetime EP0353454B1 (fr) 1988-07-20 1989-06-26 Dispositif d'attelage rapide de pelles, notamment sur un engin de terrassement

Country Status (2)

Country Link
EP (1) EP0353454B1 (fr)
DE (1) DE68906481D1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9000721U1 (de) * 1990-01-24 1990-03-01 Nagler, Jürgen, 5804 Herdecke Schnellkupplung eines Arbeitsvorsatzes an Baggern
GB2259293B (en) * 1992-10-20 1996-01-10 Hugh Robert Edeleanu Excavator Bucket Coupling System
IT1285650B1 (it) * 1996-03-29 1998-06-18 H S Penta Srl Mezzo ad autocaricamento con braccio di carico
BE1012100A4 (fr) * 1998-03-02 2000-05-02 Monsin Ladm Atel Attache rapide concue pour le montage et le demontage des bacs de grue.
AU1702000A (en) * 1998-12-10 2000-07-12 Ove Hammarstrand Tool arrangement
AU2001268292A1 (en) * 2000-06-12 2001-12-24 Clark Equipment Company Latch bar construction for a quick change bracket
DE10311927B4 (de) 2003-03-18 2007-06-28 Liebherr-Hydraulikbagger Gmbh Schnellwechsler
US8069593B2 (en) * 2008-01-17 2011-12-06 Caterpillar Inc. Excavator bucket top assembly
DE102018110465A1 (de) * 2018-05-02 2019-11-07 Mts Maschinentechnik Schrode Ag Anbauwerkzeugeinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT327096B (de) * 1974-03-05 1976-01-12 Schoberl & Soehne Joh Verriegelungseinrichtung zwischen der hubeinrichtung eines ladegerates und einem anbaugerat
US4355945A (en) * 1979-12-03 1982-10-26 Ware Machine Service, Inc. Tool mounting apparatus
NZ199611A (en) * 1981-02-05 1984-09-28 Maroochy Shire Council Quick release and attachment assembly for construction equipment tools
US4643631A (en) * 1985-04-22 1987-02-17 J. I. Case Company Quick coupling and release mechanism for buckets
NZ222864A (en) * 1987-06-04 1991-02-26 William John Balemi Connector for attaching implements to vehicle boom

Also Published As

Publication number Publication date
DE68906481D1 (de) 1993-06-17
EP0353454A1 (fr) 1990-02-07

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