EP1278915B1 - Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue - Google Patents
Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue Download PDFInfo
- Publication number
- EP1278915B1 EP1278915B1 EP01928032A EP01928032A EP1278915B1 EP 1278915 B1 EP1278915 B1 EP 1278915B1 EP 01928032 A EP01928032 A EP 01928032A EP 01928032 A EP01928032 A EP 01928032A EP 1278915 B1 EP1278915 B1 EP 1278915B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- hooks
- shaft
- tool
- arm
- 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
Links
Images
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
Definitions
- the present invention relates to improvements to quick fasteners for attaching a tool, such as a bucket, to the end of the arm of a charger.
- a quick coupler has two parts distinct, one of which is made integral with the arm and will be called while the other, who can cooperate with the first, results of a modification of the tool or is constituted by a piece made joint of the tool and will be referred to hereinafter as "adapter".
- one of the parties has a cradle in the shape of a hook likely to grab a tree carried by the other party, both said parts being applied against each other by a judicious rotation of one of them around the axis of the aforementioned tree. In most of the cases this rotation triggers the implementation of a locking device automatic.
- a locking device is described, in particular, in the European patent No. 438931 or in the French patent application No. 2785952 of 12 October 1999.
- the adapter is in the form of a caliper against the fields of the wings which the fastening member is supported at the end of its rotation.
- the contacts are carried out according to two oblique surfaces arranged in vee.
- This device does not give complete satisfaction. Indeed, as he is used in a messy environment, consisting of earth, clay and pebbles forming a conglomerate likely to adhere to the metal parts, we have found that, before locking the tool, it was necessary to ensure the cleanliness the device and remove any impurities that may be in between surfaces to be contacted. Indeed, if the contact is not total lock is made impossible.
- the contacts between the two pieces of the quick coupler take place at points that are distant from the common axis of pivoting of the two said parts.
- the quick coupler comprises two parts 1 and 2.
- part 1 which constitutes the attachment member, is articulated by a shaft 3 to the end of the arm 4 of a digger and it can rotate around the axis of this tree.
- Part 2, or adapter is made integral, a bucket 5, for example.
- part 2 has an extension 6, fit hook, able to pass through an orifice of the middle part 7 of the piece 1 to unlock a locking plate 8 which, under the action of springs 9 (see fig.7), fits under the shoulder 6a of the hook 6.
- Part 1 has, at least, a support extension 10 of a tree 11 1 extending from both sides of said extension.
- Part 2 presents two hooks 12 leaving between them sufficient space to allow the passage of the extension 10. It should be noted that, when the tool 5 rests on the ground, the hooks 12 open down which prevents the earth stagnates in the recesses of said hooks.
- the contact between the two parts 1 and 2 is carried out according to a length L (fig.2) which is very important and if the earth adheres to one or other of the surfaces to come into contact in an area near the shaft 11, the locking between the parts 1 and 2 will be impossible.
- the piece 1 has, for a length at least equal to the length L, oblique bearing surfaces 14, the angle A which, in FIG. 9, is the one formed by each oblique scope and the horizontal, being equal to that B which, in FIG. is that formed by the surface 13 and the horizontal.
- Each surface 13 is extended by a surface 15 which forms with horizontal (fig.6) an angle C greater than that B.
- impurities are present on one or other of the surfaces 15 or 14, these can be housed in the space 16 remaining between the two pieces 1 and 2 and extending over the most of the length of the room 2.
- this disadvantage is remedied by providing means that precludes any relative displacement between square brackets 12 and the shaft 11 when the two parts are locked on one another.
- the piece 1 presents, at the right of the tree 11, a concave stop 17 formed by a cylindrical surface to director circle centered on the axis of the shaft 11.
- One of the hooks 12 at least, has an outer portion 12a constituted by a cylindrical surface with circular director who, in the case of Figure 2, is centered on the axis of the shaft 11 and whose radius is, with the functional game close, equal to that of the direction of the surface forming the abutment 17.
- the portion 12a is connected, without solution of continuity, with a portion 12b whose distance to the aforementioned axis decreases to its end 12c.
- the means described so far have the effect of opposing the appearance of games that could lead to a displacement of parts 1 and 2 in a vertical plane. Since the bearing surfaces 13 are reduced, it is important to provide means to compensate for the lack of lateral guidance.
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)
- Clamps And Clips (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Gripping On Spindles (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
- Manipulator (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Description
- la figure 1 est une vue en élévation d'une attache rapide conforme à l'invention appliquée à la fixation d'un godet à l'extrémité du bras d'un chargeur;
- la figure 2 est une vue, analogue à la figure 1, montrant une phase ultérieure de l'accrochage;
- la figure 3 est une vue à plus grande échelle et limitée à l'attache montrant celle-ci en position de verrouillage de l'outil;
- la figure 4 est une vue en coupe verticale de l'adaptateur;
- la figure 5 est la vue de gauche de la figure 4;
- la figure 6 est une vue en coupe effectuée selon la ligne VI-VI de la figure 4;
- la figure 7 est une vue en élévation de l'organe d'accrochage;
- la figure 8 est la vue de gauche de la figure 7;
- la figure 9 est une vue en coupe effectuée selon la ligne IX-IX de la figure 7.
- les figures 10 et 11 sont des vues en coupe effectuées respectivement selon les lignes X-X et XI-XI de la figure 3, les vues en coupe étant redressées.
Claims (4)
- Attache rapide comportant une première partie (1) ou organe d'accrochage, et une deuxième partie (2) ou adaptateur, dont l'une est portée par le bras 4 d'un engin et dont l'autre est portée par un outil, l'une des parties comportant un arbre (11) susceptible par un déplacement dudit bras, de pénétrer dans des crochets (12) formant des paliers ouverts de l'autre partie et comportant des moyens pour maintenir les deux dites parties verrouillées l'une sur l'autre, selon des surfaces disposées en Vé, de façon à s'opposer au déplacement latéral des deux pièces assemblées, caractérisée en ce que, outre le contact entre les crochets (12) et l'arbre ( 11), un second contact a lieu entre les parties (1) et (2) limité à des surfaces (13) situées à l'extrémité de ces dernières et éloignées dudit arbre (11)
- Attache rapide selon la revendication 1, caractérisée en ce que l'adaptateur présente des surfaces d'appui (13) de dimensions réduites par rapport à sa longueur (L) et qui sont situées à l'opposé des crochets (12).
- Attache rapide selon la revendication 2, caractérisée en ce qu'une butée concave (17), au moins, est prévue au droit de l'arbre (11), ladite butée épousant, sans jeu, la partie correspondante du crochet lorsque les deux pièces formant l'attache sont verrouillées l'une sur l'autre.
- Attache selon l'une quelconque des revendications 1 et 2, caractérisée en ce que des moyens sont prévus sur les faces latérales internes des crochets et sur celles externes d'une extension (10) de support de l'arbre (11) pour immobiliser latéralement les deux pièces, ces moyens entrant en action seulement lorsque les deux dites pièces sont verrouillées l'une sur l'autre.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0005606 | 2000-05-03 | ||
FR0005606A FR2808542B1 (fr) | 2000-05-03 | 2000-05-03 | Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue |
PCT/FR2001/001235 WO2001083893A1 (fr) | 2000-05-03 | 2001-04-23 | Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1278915A1 EP1278915A1 (fr) | 2003-01-29 |
EP1278915B1 true EP1278915B1 (fr) | 2005-03-02 |
Family
ID=8849815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01928032A Expired - Lifetime EP1278915B1 (fr) | 2000-05-03 | 2001-04-23 | Attache rapide pour fixer un outil a l'extremite du bras d'un chargeur ou analogue |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1278915B1 (fr) |
AT (1) | ATE290134T1 (fr) |
AU (1) | AU2001254902A1 (fr) |
DE (1) | DE60109149D1 (fr) |
FR (1) | FR2808542B1 (fr) |
WO (1) | WO2001083893A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005056505B3 (de) * | 2005-11-28 | 2007-02-08 | Robert Riedlberger | Zentriervorrichtung für Schnellwechselvorrichtungen |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3556323A (en) * | 1968-12-23 | 1971-01-19 | Damian M Heimmermann | Quick-connect coupler for bucket on excavating machine |
US4311428A (en) * | 1979-05-16 | 1982-01-19 | Wain-Roy, Inc. | Connectors |
NL170447C (nl) * | 1979-06-01 | 1984-03-16 | Bofors Nederland | Inrichting voor het koppelen van een gereedschap aan een giek met behulp van een tussenstuk en een koppelstuk. |
US4871292A (en) * | 1987-12-17 | 1989-10-03 | Richard Milanowski | System for attaching and locking material handling tools to a dipper boom |
NL9101150A (nl) * | 1991-07-02 | 1993-02-01 | Verachtert Bv | Koppelstuk. |
NL1003097C2 (nl) * | 1996-05-13 | 1997-11-18 | Den Heuvel Werkendam B V Van | Koppelstuk voor het koppelen van een werktuig, zoals een graafbak, aan een giek van een graafmachine of dergelijke. |
US5915837A (en) * | 1997-05-27 | 1999-06-29 | Caterpillar Inc. | Quick-disconnect coupling device |
US5890871A (en) * | 1997-12-10 | 1999-04-06 | Caterpillar Inc. | Latching mechanism for a quick coupler |
-
2000
- 2000-05-03 FR FR0005606A patent/FR2808542B1/fr not_active Expired - Lifetime
-
2001
- 2001-04-23 AU AU2001254902A patent/AU2001254902A1/en not_active Abandoned
- 2001-04-23 EP EP01928032A patent/EP1278915B1/fr not_active Expired - Lifetime
- 2001-04-23 WO PCT/FR2001/001235 patent/WO2001083893A1/fr active IP Right Grant
- 2001-04-23 DE DE60109149T patent/DE60109149D1/de not_active Expired - Lifetime
- 2001-04-23 AT AT01928032T patent/ATE290134T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1278915A1 (fr) | 2003-01-29 |
WO2001083893A1 (fr) | 2001-11-08 |
DE60109149D1 (de) | 2005-04-07 |
ATE290134T1 (de) | 2005-03-15 |
AU2001254902A1 (en) | 2001-11-12 |
FR2808542A1 (fr) | 2001-11-09 |
FR2808542B1 (fr) | 2003-03-07 |
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