WO2002103121A1 - Quick fastener for fixing a tool to the end of the arm of a loader or similar device - Google Patents

Quick fastener for fixing a tool to the end of the arm of a loader or similar device Download PDF

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Publication number
WO2002103121A1
WO2002103121A1 PCT/FR2002/001364 FR0201364W WO02103121A1 WO 2002103121 A1 WO2002103121 A1 WO 2002103121A1 FR 0201364 W FR0201364 W FR 0201364W WO 02103121 A1 WO02103121 A1 WO 02103121A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
parts
extension
plate
fastener according
Prior art date
Application number
PCT/FR2002/001364
Other languages
French (fr)
Inventor
Fabrice Faure
Nicolas Romilly
Original Assignee
Klac Industrie
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 Klac Industrie filed Critical Klac Industrie
Priority to EP02735469A priority Critical patent/EP1397563A1/en
Publication of WO2002103121A1 publication Critical patent/WO2002103121A1/en

Links

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
    • E02F3/3613—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with means for absorbing any play therebetween
    • 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

  • TITLE Quick coupler to attach a tool to the end of the arm of a loader or the like
  • the present invention relates to a quick coupler for fixing a tool to the end of the arm of a loader or the like.
  • a quick coupler has two parts, one of which is made integral with the arm of the machine and the other resulting from a modification of the tool or is constituted by a part made integral with said tool.
  • One of the parts comprises a shaft, situated towards one of the ends of said part, capable of cooperating with a hook, forming an open bearing, carried by the other part.
  • This device gives full satisfaction when applied to the fixing of small-sized buckets, but it is no longer the same when it comes to large-sized buckets because the forces which come into play are incompatible with the use of silent blocks.
  • one of the parts of the fastener comprises a movable wedging member capable, at the end of the locking of the two parts, of being inserted between them, the contact taking place at a point situated substantially in line with the tree.
  • FIG 1 is a sectional view of the part of the fastener, comprising the shaft, modified according to the invention
  • FIG 2 is the top view of Figure 1;
  • FIG. 3 is a sectional view of the part of the fastener comprising the hooks, modified according to the invention.
  • FIG. 4 is the top view of FIG. 3;
  • FIG. 5 is a sectional view, at the end of locking and showing the action of the device of the invention;
  • FIG 6 is a sectional view, similar to that 5, showing the position of the movable members allowing the stall.
  • the attachment shown has been limited, so as not to unnecessarily complicate the drawings, to the organs necessary for understanding the device of the invention. It should therefore be noted that all the components necessary to fix one or other of the parts either on the bucket or on the loader arm have been omitted.
  • the attachment consists of two parts 1 and 2, that 1 comprising the shaft 3 and that 2 the hooks 4.
  • the locking is effected by means of an automatic snap-in operation involving a sliding plate 5 carried by the part 1 and the notch 6 of a shoe 7 carried by the part 2.
  • This mechanism is described in prior documents and , in particular, in document FR-2785952.
  • the part 2 comprising the hooks, has an extension 8 extending substantially in line with the location of the axis of the shaft 3, said extension forming between it and the corresponding face la of part 1, when the two parts are locked, a space in which a wedging member 9 can be inserted.
  • the extension 8 has an oblique surface 8a, forming a ramp, capable of cooperating with a similar surface 9a of the member 9 when the latter moves along the arrow F1.
  • the member 9 is carried by a sliding plate 10 , held against the face 1a of the part 1.
  • the plate 10 is constantly subjected to a force tending to move it according to the arrow Fl. Springs, not shown
  • Maintaining and guiding the plate 10 is ensured by known means, similar to those used for maintaining and guiding the plate Locking 5.
  • the plate 10 is subjected to the action of springs (not shown) similar to those, known, used for the plate 5.
  • the recoil of the plate 5 is used to determine that of the plate 10, the two plates being judiciously dimensioned so that the stroke of the plate 5 is greater than that of the plate 10 .
  • the plate 10 has at least one finger 1 1 passing through the usual orifice
  • the plate 5 is displaced, according to arrow F2, in the usual way.
  • the recoil of the plate 5 determines that of the plate 10 by means of the fingers 1 1 entrained by the edge 13a of the orifice 13.
  • the part 2 can then pivot freely according to the arrow F3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The invention relates to a quick fastener consisting of two parts. One of said parts comprises a shaft (3) that can co-operate with a hook, forming an open bearing. Moreover, said invention comprises means for securing the two parts to each other by means of an automatic locking device. The part comprising the hook (4) is provided with an extension piece (8) that extends more or less in line with the position of the axis of the shaft (3). A clamping member (9) can be inserted into a space which is disposed between the extension piece and the part comprising said shaft.

Description

TITRE : Attache rapide pour fixer un outil à l'extrémité du bras d'un chargeur ou analogueTITLE: Quick coupler to attach a tool to the end of the arm of a loader or the like
La présente invention est relative à une attache rapide pour fixer un outil à l'extrémité du bras d'un chargeur ou analogue.The present invention relates to a quick coupler for fixing a tool to the end of the arm of a loader or the like.
D'une façon générale, une attache rapide comporte deux parties dont l'une est rendue solidaire du bras de l'engin et l'autre résulte d'une modification de l'outil ou est constituée par une pièce rendue solidaire dudit outil.In general, a quick coupler has two parts, one of which is made integral with the arm of the machine and the other resulting from a modification of the tool or is constituted by a part made integral with said tool.
L'une des parties comporte un arbre, situé vers l'une des extrémités de ladite partie, susceptible de coopérer avec un crochet, formant un palier ouvert, porté par l'autre pièce.One of the parts comprises a shaft, situated towards one of the ends of said part, capable of cooperating with a hook, forming an open bearing, carried by the other part.
Lorsque l'une des parties est accrochée sur l'autre, on fait pivoter l'ensemble de façon à les plaquer l'une sur l'autre ce qui entraîne le verrouillage automatique. Ce processus est bien connu et est décrit amplement dans la demande de brevet français publiée sous le numéro 2785951 ou dans la demande de brevet français N° 00 05606 du 3 mai 2000.When one of the parts is hooked on the other, the assembly is pivoted so as to press them one on the other which results in automatic locking. This process is well known and is fully described in the French patent application published under the number 2785951 or in the French patent application No. 00 05606 of May 3, 2000.
Dans la demande de brevet français N°01 03205 du 9 mars 2001 , on a exposé le problème selon lequel il importe que des moyens soient prévus pour maintenir, sans jeu, l'arbre appliqué contre le fond du ou des paliers formés par le ou les crochets. Dans la demande du 9 mars 2001 , il est préconisé, pour atteindre le résultat précité, d'interposer entre les deux parties de l'attache un organe élastiquement déformable qui se trouve comprimé lorsque les deux pièces sont verrouillées et tend à les maintenir écartées.In French patent application No. 01 03205 of March 9, 2001, the problem has been explained that it is important that means be provided to keep the shaft applied without play, against the bottom of the bearing or bearings formed by the or the hooks. In the request of March 9, 2001, it is recommended, to achieve the aforementioned result, to interpose between the two parts of the fastener an elastically deformable member which is compressed when the two parts are locked and tends to keep them apart.
Ce dispositif donne toute satisfaction lorsqu'il est appliqué à la fixation de godets de petites dimensions, mais il n'en est plus de même lorsqu'il s'agit de godets de grandes dimensions car les efforts qui entrent en jeu sont incompatibles avec l'utilisation de silentblocs.This device gives full satisfaction when applied to the fixing of small-sized buckets, but it is no longer the same when it comes to large-sized buckets because the forces which come into play are incompatible with the use of silent blocks.
Selon la présente invention, l'une des parties de l'attache comporte un organe de coincement mobile susceptible à la fin du verrouillage des deux parties de s'insérer entre elles, le contact ayant lieu en un point situé sensiblement à l'aplomb de l'arbre.According to the present invention, one of the parts of the fastener comprises a movable wedging member capable, at the end of the locking of the two parts, of being inserted between them, the contact taking place at a point situated substantially in line with the tree.
La présente invention sera mieux comprise par la description qui va suivre faite en se référant aux dessins annexés à titre d'exemple indicatif, seulement, sur lesquels :The present invention will be better understood from the following description made with reference to the accompanying drawings by way of indicative example only, in which:
-la figure 1 est une vue en coupe de la partie de l'attache, comportant l'arbre, modifiée selon l'invention ;FIG 1 is a sectional view of the part of the fastener, comprising the shaft, modified according to the invention;
-la figure 2 est la vue de dessus de la figure 1 ;FIG 2 is the top view of Figure 1;
-la figure 3 est une vue en coupe de la partie de l'attache comportant les crochets, modifiée selon l'invention ;FIG. 3 is a sectional view of the part of the fastener comprising the hooks, modified according to the invention;
-la figure 4 est la vue de dessus de la figure 3 ; -la figure 5 est une vue en coupe, à la fin du verrouillage et montrant l'action du dispositif de l'invention ;FIG. 4 is the top view of FIG. 3; FIG. 5 is a sectional view, at the end of locking and showing the action of the device of the invention;
-la figure 6 est une vue en coupe, analogue à celle 5, montrant la position des organes mobiles permettant le décrochage. L'attache représentée a été limitée, pour ne pas compliquer inutilement les dessins, aux organes nécessaires à la compréhension du dispositif de l'invention. Il y a ainsi lieu de noter que tous les organes nécessaires pour fixer l'une ou l'autre des parties soit sur le godet soit au bras du chargeur ont été omises.FIG 6 is a sectional view, similar to that 5, showing the position of the movable members allowing the stall. The attachment shown has been limited, so as not to unnecessarily complicate the drawings, to the organs necessary for understanding the device of the invention. It should therefore be noted that all the components necessary to fix one or other of the parts either on the bucket or on the loader arm have been omitted.
Ceci étant précisé, l'attache se compose de deux parties 1 et 2, celle 1 comportant l'arbre 3 et celle 2 les crochets 4.Having said this, the attachment consists of two parts 1 and 2, that 1 comprising the shaft 3 and that 2 the hooks 4.
Le verrouillage s'effectue par l'entremise d'un encliquetage automatique mettant en jeu une plaque coulissante 5 portée par la partie 1 et le cran 6 d'un sabot 7 porté par la partie 2. Ce mécanisme est décrit dans des documents antérieurs et, notamment, dans le document FR-2785952.The locking is effected by means of an automatic snap-in operation involving a sliding plate 5 carried by the part 1 and the notch 6 of a shoe 7 carried by the part 2. This mechanism is described in prior documents and , in particular, in document FR-2785952.
Selon l'invention, la partie 2, comportant les crochets, présente une extension 8 s'étendant sensiblement à l'aplomb de l'emplacement de l'axe de l'arbre 3, ladite extension ménageant entre elle et la face correspondante l a de la partie 1 , lorsque les deux parties sont verrouillées, un espace dans lequel on peut insérer un organe de coincement 9.According to the invention, the part 2, comprising the hooks, has an extension 8 extending substantially in line with the location of the axis of the shaft 3, said extension forming between it and the corresponding face la of part 1, when the two parts are locked, a space in which a wedging member 9 can be inserted.
L'extension 8 présente une surface oblique 8a, formant rampe, susceptible de coopérer avec une surface 9a, analogue, de l'organe 9 lorsque ce dernier se déplace selon la flèche Fl. L'organe 9 est porté par une plaque 10, coulissante, maintenue contre la face 1 a de la partie 1. La plaque 10 est constamment soumise à une force tendant à la déplacer selon la flèche Fl. Des ressorts, non représentésThe extension 8 has an oblique surface 8a, forming a ramp, capable of cooperating with a similar surface 9a of the member 9 when the latter moves along the arrow F1. The member 9 is carried by a sliding plate 10 , held against the face 1a of the part 1. The plate 10 is constantly subjected to a force tending to move it according to the arrow Fl. Springs, not shown
Le maintien et le guidage de la plaque 10 sont assurés par des moyens connus, analogues à ceux utilisés pour le maintien et le guidage de la plaque de verrouillage 5. Dans le même esprit, la plaque 10 est soumise à l'action de ressorts (non représentés) analogues à ceux, connus, utilisés pour la plaque 5.Maintaining and guiding the plate 10 is ensured by known means, similar to those used for maintaining and guiding the plate Locking 5. In the same spirit, the plate 10 is subjected to the action of springs (not shown) similar to those, known, used for the plate 5.
Selon une autre caractéristique de l'invention, le recul de la plaque 5 est utilisé pour déterminer celui de la plaque 10, les deux plaques étant judicieusement dimensionnées de façon à ce que la course de la plaque 5 soit supérieure à celle de la plaque 10.According to another characteristic of the invention, the recoil of the plate 5 is used to determine that of the plate 10, the two plates being judiciously dimensioned so that the stroke of the plate 5 is greater than that of the plate 10 .
La plaque 10 présente, au moins un doigt 1 1 traversant l'orifice usuelThe plate 10 has at least one finger 1 1 passing through the usual orifice
12 de passage du sabot 7 et celui 13 de la plaque de verrouillage.12 for passage of the shoe 7 and that 13 of the locking plate.
Si on considère la figure 5, on voit que l'organe 9 est inséré, à force, dans l'espace ménagé entre la rampe 8a et la face 1 a et tend à les écarter l'une de l'autre ce qui a pour effet de plaquer les paliers ouverts des crochets contre l'arbre 3.If we consider Figure 5, we see that the member 9 is inserted, by force, in the space formed between the ramp 8a and the face 1a and tends to separate them from each other which has for effect of pressing the open bearings of the hooks against the shaft 3.
Pour désaccoupler les deux parties de l'attache, on déplace la plaque 5, selon la flèche F2, de la façon usuelle. Le recul de la plaque 5 détermine celui de la plaque 10 par l'entremise des doigts 1 1 entraînés par le bord 13a de l'orifice 13. La partie 2 peut alors pivoter librement selon la flèche F3. To decouple the two parts of the fastener, the plate 5 is displaced, according to arrow F2, in the usual way. The recoil of the plate 5 determines that of the plate 10 by means of the fingers 1 1 entrained by the edge 13a of the orifice 13. The part 2 can then pivot freely according to the arrow F3.

Claims

REVENDICATIONS
1 -Attache rapide comportant deux parties (1 et 2), la partie (1 ) comportant un arbre (3) susceptible de coopérer avec un crochet (4) formant un palier ouvert et comportant des moyens pour verrouiller les deux parties l'une sur l'autre par l'entremise d'un dispositif d'encliquetage automatique, caractérisée en ce que la partie comportant le crochet (4) présente une extension (8) s'étendant sensiblement à l'aplomb de la position de l'axe de l'arbre (3), ladite extension ménageant entre elle et la partie comportant ledit arbre un espace dans lequel on peut insérer un organe de coincement (9).1 -Quick coupler comprising two parts (1 and 2), the part (1) comprising a shaft (3) capable of cooperating with a hook (4) forming an open bearing and comprising means for locking the two parts one on the other by means of an automatic latching device, characterized in that the part comprising the hook (4) has an extension (8) extending substantially in line with the position of the axis of the shaft (3), said extension forming between it and the part comprising said shaft a space in which a wedging member (9) can be inserted.
2-Attache selon la revendication 1 , caractérisée en ce que le contact entre l'extension (8) et l'organe (9) est assuré par des surfaces formant rampes (8a et 9a), ledit organe étant maintenu et guidé contre la face correspondante (l a) de la partie (1 ) comportant l'arbre (3).2-fastener according to claim 1, characterized in that the contact between the extension (8) and the member (9) is provided by surfaces forming ramps (8a and 9a), said member being held and guided against the face corresponding (la) of the part (1) comprising the shaft (3).
3-Attache selon la revendication 2, caractérisée en ce que l'organe (9) est constamment soumis à l'action d'une force qui tend à l'appliquer contre la surface oblique de l'extension (8).3-fastener according to claim 2, characterized in that the member (9) is constantly subjected to the action of a force which tends to apply it against the oblique surface of the extension (8).
4-Attache selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le recul de la plaque de verrouillage usuelle (5) est utilisé pour déterminer celui de l'organe de coincement (9).4-fastener according to any one of claims 1 to 3, characterized in that the recoil of the usual locking plate (5) is used to determine that of the clamping member (9).
5-Attache selon la revendication 4, caractérisée en ce que l'organe de coincement (9) présente, au moins, un doigt (1 1 ), traversant les orifices usuels de la partie (1 ) et de la plaque de verrouillage (5), susceptible d'être entraîné par ladite plaque, lors du recul de cette dernière en vue du déverrouillage (déplacement selon la flèche F2). 5-fastener according to claim 4, characterized in that the wedging member (9) has at least one finger (1 1), passing through the usual orifices of the part (1) and of the locking plate (5 ), likely to be driven by said plate, during the retraction of the latter for unlocking (movement according to arrow F2).
PCT/FR2002/001364 2001-06-19 2002-04-22 Quick fastener for fixing a tool to the end of the arm of a loader or similar device WO2002103121A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02735469A EP1397563A1 (en) 2001-06-19 2002-04-22 Quick fastener for fixing a tool to the end of the arm of a loader or similar device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0108006A FR2826028B1 (en) 2001-06-19 2001-06-19 QUICK ATTACHMENT FOR ATTACHING A TOOL AT THE END OF THE ARM OF A LOADER OR THE LIKE
FR01/08006 2001-06-19

Publications (1)

Publication Number Publication Date
WO2002103121A1 true WO2002103121A1 (en) 2002-12-27

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ID=8864476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2002/001364 WO2002103121A1 (en) 2001-06-19 2002-04-22 Quick fastener for fixing a tool to the end of the arm of a loader or similar device

Country Status (3)

Country Link
EP (1) EP1397563A1 (en)
FR (1) FR2826028B1 (en)
WO (1) WO2002103121A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20030056A1 (en) * 2003-02-07 2004-08-08 Cangini Benne Srl TOOL CONNECTION DEVICE.
SI22502A (en) * 2007-03-13 2008-10-31 JoĹľef BAJEC Quick clamp for exchanging excavator tools

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1860283A (en) * 1982-09-01 1984-03-08 Jones, P.W. Quick-release hydraulic hitch for attaching parts to excavator arm
EP0143074A1 (en) * 1983-09-15 1985-05-29 Fredi Stury AG Excavator
JPH0372121A (en) * 1989-08-10 1991-03-27 Kubota Corp Device for attaching/detaching working tool of boom type working machine
JPH1072843A (en) * 1996-07-05 1998-03-17 Komatsu Ltd Simply detachable device of operation machine attachment
FR2785951A1 (en) * 1998-11-12 2000-05-19 Alain Husson Quick-fit connector for implement such as bucket on end of manipulator arm has stirrup with aperture and locking plate engaging with hook
US6123501A (en) * 1998-03-18 2000-09-26 Pacific Services & Manufacturing Corp. Wear-compensating universal quick coupling device for heavy equipment attachment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1860283A (en) * 1982-09-01 1984-03-08 Jones, P.W. Quick-release hydraulic hitch for attaching parts to excavator arm
EP0143074A1 (en) * 1983-09-15 1985-05-29 Fredi Stury AG Excavator
JPH0372121A (en) * 1989-08-10 1991-03-27 Kubota Corp Device for attaching/detaching working tool of boom type working machine
JPH1072843A (en) * 1996-07-05 1998-03-17 Komatsu Ltd Simply detachable device of operation machine attachment
US6123501A (en) * 1998-03-18 2000-09-26 Pacific Services & Manufacturing Corp. Wear-compensating universal quick coupling device for heavy equipment attachment
FR2785951A1 (en) * 1998-11-12 2000-05-19 Alain Husson Quick-fit connector for implement such as bucket on end of manipulator arm has stirrup with aperture and locking plate engaging with hook

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 232 (M - 1124) 13 June 1991 (1991-06-13) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 08 30 June 1998 (1998-06-30) *

Also Published As

Publication number Publication date
FR2826028A1 (en) 2002-12-20
FR2826028B1 (en) 2003-09-05
EP1397563A1 (en) 2004-03-17

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