EP0704577B1 - Quick-coupling for connecting implements to an excavator - Google Patents
Quick-coupling for connecting implements to an excavator Download PDFInfo
- Publication number
- EP0704577B1 EP0704577B1 EP95401790A EP95401790A EP0704577B1 EP 0704577 B1 EP0704577 B1 EP 0704577B1 EP 95401790 A EP95401790 A EP 95401790A EP 95401790 A EP95401790 A EP 95401790A EP 0704577 B1 EP0704577 B1 EP 0704577B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- stops
- arm
- shaft
- stop
- 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
- 238000010168 coupling process Methods 0.000 title abstract 2
- 238000005859 coupling reaction Methods 0.000 title abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000004513 sizing Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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
- E02F3/364—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 relates to improvements to devices for attaching a tool to the end of the arm of a shovel hydraulic or the like.
- a quick coupler has two parts, a first part, or hooking member, which is worn by the end of the arm and a second part which is rendered secured to the tool.
- the second part consists mainly of a tree, or by two pins, fixed relative to the tool.
- the first part which is articulated at the end of the arm, presents, in its form the simpler, a hook forming a semi-cylindrical cradle likely to be engaged on the tool shaft when the latter rests on the ground.
- a device comprising a hooking member articulated on the end of the arm and comprising a cradle capable of grasping a rendered tree integral with the tool, the rotation of the fastening member being limited by two stops, one of which is located at the end of an extension of said attachment member, while the other is carried by the tool.
- the locking of the tool on the latching member is achieved by joining the two stops together with a screw. Of this way, it is opposed to the tool shaft coming out of its cradle. However, nothing is planned to oppose the phenomenon of matting producing between the tree and the cradle.
- the present invention which remedies this drawback, is relative to a device for attaching a tool to the end of the arm of a shovel hydraulic or the like using a quick coupler consisting of a hooking member articulated on the end of the arm and comprising a cradle likely to seize a tree, or trunnions, returned integral with the tool, and it is characterized in that the member hooking has a stop, capable of cooperating with a stop, arranged at the periphery of the shaft or of the tool journals, when the hooking member is locked on said tool.
- 1 is the end of the usual arm of a charger on which it is advisable to fix a tool 2.
- tool 2 is a jackhammer, i.e. a tool that is subjected to alternating forces.
- the fastening member 3 is produced at by means of two identical hooks, forming cradles, joined together by, at least, a crosspiece 5. Each hook is located on the small branch of an L-shaped piece 6.
- the attachment member 3 is articulated at the end of the arm 1 through a shaft 7 and can pivot around the axis of said tree through links 8 and 9 subjected to the action of a cylinder whose piston rod appears at 10 in the drawings.
- the tool 2 has a susceptible tree to be gripped by the cradle formed by the hooks 4.
- the aforementioned tree can be limited to two lateral pins 11.
- Figure 1 shows the tool hooked under the arm 1.
- the rod 10 By moving the rod 10 according to arrow F 1 we rotate the fastening member 3 in the same direction until the latter automatically locks to the part upper part of the tool (position shown in Figure 2).
- the means for achieving this locking have not been shown but are described in the aforementioned European patent No. 438931.
- the attachment member has a stop 12 likely to cooperate, when the tool is locked, with a stop 13 provided on the tool.
- the stop 12 has a concave contact surface 14 and the stop 13 has a convex contact surface 15, stop 12 being fixed relative to member 3 and that 13 being fixed by compared to tool 2.
- the two surfaces 14 and 15 move on a fictitious cylinder the axis of which coincides with that of the journals 11. In all rigor and for mechanical reasons, surfaces 14 and 15 operate on two separate fictitious cylinders, the difference radii between the two cylinders resulting from mechanical play necessary between the two surfaces. It is desirable that this game be as small as possible.
- the stop 12 pivots in the same direction and comes to position, at the end of the locking, above the stop 13. In the latter position, the forces to which the tool is subjected (those exerted according to arrow F2) are transmitted to the latching member by the stop 13 which cooperates with that 12 and not by the pins 11. The efforts exerted in the opposite direction are collected by the semi-cylindrical cradle formed by the hooks 4.
- the stops 12 and 13 are located in separate planes of those containing the brackets.
- the stop 13 is disposed between the pins 11 and that 12 is made integral with cross 5.
- Figure 3 shows the attachment of a bucket 16 using a attachment member 3.
- the bucket 16 comprises a shaft 17, fixed relative to said bucket.
- the shaft 17 has two stops 18 and 19, diametrically opposed, likely to cooperate, when the bucket is locked, with two stops 20 and 21 carried by the attachment member 3.
- the stops have contact surfaces 22 and 23 similar to those 14 and 15.
- stops 20 and 21 are arranged outwards relative to the axis of the shaft 17, but this provision can be reversed as shown in the figure 5.
- the tree 17 has two stops 24 and 25 capable, when the tool is locked, of cooperate with two stops 26 and 27 carried by the member 3.
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)
- Earth Drilling (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
La présente invention est relative à des perfectionnements aux dispositifs pour fixer un outil à l'extrémité du bras d'une pelle hydraulique ou analogue.The present invention relates to improvements to devices for attaching a tool to the end of the arm of a shovel hydraulic or the like.
Actuellement, la fixation d'un outil, tel qu'un godet ou un marteau-piqueur, s'effectue par l'entremise d'un dispositif dénommé "attache rapide". Un tel dispositif permet de fixer automatiquement l'outil sans que le conducteur de l'engin quitte sa cabine de commande.Currently, attaching a tool, such as a bucket or jackhammer, is carried out through a device called "quick coupler". Such a device makes it possible to fix the tool automatically without the operator of the machine leaving his control cabin.
D'une façon générale, une attache rapide comporte deux parties, une première partie, ou organe d'accrochage, qui est portée par l'extrémité du bras et une seconde partie qui est rendue solidaire de l'outil.Generally, a quick coupler has two parts, a first part, or hooking member, which is worn by the end of the arm and a second part which is rendered secured to the tool.
La seconde partie est principalement constituée par un arbre, ou par deux tourillons, fixe par rapport à l'outil. La première partie, qui est articulée à l'extrémité du bras, présente, dans sa forme la plus simple, un crochet formant un berceau semi-cylindrique susceptible d'être engagé sur l'arbre de l'outil lorsque ce dernier repose sur le sol. Par ces rotations judicieuses tant du bras de l'engin que de l'organe d'accrochage par rapport audit bras, il est ensuite possible de verrouiller automatiquement l'outil par rapport audit bras. Les manoeuvres à effectuer pour assurer le verrouillage dépendent des moyens mis en oeuvre pour réaliser l'attache rapide.The second part consists mainly of a tree, or by two pins, fixed relative to the tool. The first part, which is articulated at the end of the arm, presents, in its form the simpler, a hook forming a semi-cylindrical cradle likely to be engaged on the tool shaft when the latter rests on the ground. By these judicious rotations both the arm of the object of the attachment member with respect to said arm, it is then possible to automatically lock the tool against said arm. The maneuvers to be carried out to ensure locking depend on the means used to make the quick coupler.
Il ressort des explications ci-dessus que le contact de l'arbre de l'outil avec l'organe d'accrochage s'effectue, en fait, par l'entremise d'un palier ouvert. Cette disposition ne pose pas de problème si les efforts auxquels est soumis l'outil durant le travail tendent à plaquer l'arbre dans le palier.It appears from the above explanations that the contact of the shaft of the tool with the latching member is in fact effected by through an open landing. This provision does not pose any problem if the forces to which the tool is subjected during work tend to press the shaft into the bearing.
L'expérience a montré toutefois que pour certains outils, tels que des marteaux-piqueurs, l'effort maximal a une direction telle que seule une partie de la surface du berceau est en contact avec l'arbre de l'outil. Lorsque les efforts sont alternés il se produit un phénomène de matage entre les surfaces en contact et les jeux qui en résultent détruisent rapidement l'attache rapide. However, experience has shown that for certain tools, such as as jackhammers, the maximum force has such a direction that only part of the surface of the cradle is in contact with the tool shaft. When the efforts are alternated there is a matting phenomenon between the surfaces in contact and the games which the result quickly destroys the quick coupler.
Ainsi, dans le document DE-U-9204711, il est décrit un dispositif d'attache comportant un organe d'accrochage articulé sur l'extrémité du bras et comportant un berceau susceptible de saisir un arbre rendu solidaire de l'outil, la rotation de l'organe d'accrochage étant limitée par deux butées dont l'une est située à l'extrémité d'une extension dudit organe d'accrochage, tandis que l'autre est portée par l'outil. Le verrouillage de l'outil sur l'organe d'accrochage est réalisé en assemblant les deux butées l'une à l'autre à l'aide d'une vis. De cette façon, on s'oppose à ce que l'arbre de l'outil sorte de son berceau. Toutefois, rien n'est prévu pour s'opposer au phénomène de matage se produisant entre l'arbre et le berceau.Thus, in document DE-U-9204711, a device is described attachment comprising a hooking member articulated on the end of the arm and comprising a cradle capable of grasping a rendered tree integral with the tool, the rotation of the fastening member being limited by two stops, one of which is located at the end of an extension of said attachment member, while the other is carried by the tool. The locking of the tool on the latching member is achieved by joining the two stops together with a screw. Of this way, it is opposed to the tool shaft coming out of its cradle. However, nothing is planned to oppose the phenomenon of matting producing between the tree and the cradle.
La présente invention, qui remédie à cet inconvénient, est relative à un dispositif pour fixer un outil à l'extrémité du bras d'une pelle hydraulique ou analogue à l'aide d'une attache rapide constituée par un organe d'accrochage articulé sur l'extrémité du bras et comportant un berceau susceptible de saisir un arbre, ou des tourillons, rendus solidaire de l'outil, et elle est caractérisée en ce que l'organe d'accrochage présente une butée, susceptible de coopérer avec une butée, disposée à la périphérie de l'arbre ou des tourillons de l'outil, lorsque l'organe d'accrochage est verrouillé sur ledit outil. The present invention, which remedies this drawback, is relative to a device for attaching a tool to the end of the arm of a shovel hydraulic or the like using a quick coupler consisting of a hooking member articulated on the end of the arm and comprising a cradle likely to seize a tree, or trunnions, returned integral with the tool, and it is characterized in that the member hooking has a stop, capable of cooperating with a stop, arranged at the periphery of the shaft or of the tool journals, when the hooking member is locked on said tool.
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 :
- la figure 1 est une vue partielle, en élévation, montrant l'accrochage d'un outil à l'extrémité du bras d'un chargeur à l'aide d'une attache rapide comportant le dispositif de l'invention;
- la figure 2 est une vue, analogue à celle 1, montrant l'outil verrouillé;
- la figure 3 est une vue analogue à la figure 1 montrant une variante de réalisation;
- la figure 4 est une vue analogue à la figure 3 montrant l'outil en position verrouillée;
- la figure 5 est une vue en coupe effectuée selon la ligne V-V de la figure 4 montrant une variante de réalisation, cette vue est partielle et effectuée à plus grande échelle.
- Figure 1 is a partial view, in elevation, showing the attachment of a tool at the end of the arm of a loader using a quick coupler comprising the device of the invention;
- Figure 2 is a view, similar to that 1, showing the locked tool;
- Figure 3 is a view similar to Figure 1 showing an alternative embodiment;
- Figure 4 is a view similar to Figure 3 showing the tool in the locked position;
- Figure 5 is a sectional view taken along the line VV of Figure 4 showing an alternative embodiment, this view is partial and made on a larger scale.
Dans la description qui va suivre, il y a lieu de noter que l'invention est appliquée à une attache rapide du genre de celle décrite dans le brevet européen N°438931 permettant au conducteur de l'engin d'accrocher l'outil sans descendre du véhicule. De ce fait, les caractéristiques qui ne sont pas utiles à la compréhension de la présente invention n'ont pas été décrites ni représentées.In the description which follows, it should be noted that the invention is applied to a quick coupler like the one described in European patent N ° 438931 allowing the operator of the machine to hang the tool without getting out of the vehicle. Therefore, the features that are not helpful in understanding the present invention have not been described or shown.
En se reportant aux dessins et selon un mode de réalisation,
on voit que 1 est l'extrémité du bras usuel d'un chargeur sur
laquelle il convient de fixer un outil 2. Dans l'exemple représenté
l'outil 2 est un marteau-piqueur, c'est-à-dire un outil qui est
soumis à des efforts alternés.Referring to the drawings and according to one embodiment,
we see that 1 is the end of the usual arm of a charger on
which it is advisable to fix a
De la façon connue, l'organe d'accrochage 3 est réalisé au
moyen de deux crochets, identiques, formant berceaux, réunis
par, au moins, une traverse 5. Chaque crochet est situé sur la
petite branche d'une pièce 6 en forme d'L.In known manner, the fastening
L'organe d'accrochage 3 est articulé à l'extrémité du bras 1
par l'entremise d'un arbre 7 et peut pivoter autour de l'axe dudit
arbre par l'entremise de biellettes 8 et 9 soumises à l'action d'un
vérin dont la tige de piston apparaít en 10 sur les dessins.The
De la façon connue, l'outil 2 présente un arbre susceptible
d'être saisi par le berceau formé par les crochets 4. L'arbre précité
peut être limité à deux tourillons latéraux 11.In known manner, the
La figure 1 montre l'outil accroché sous le bras 1. En
déplaçant la tige 10 selon la flèche F1 on fait pivoter l'organe
d'accrochage 3 dans le même sens jusqu'à ce que ce dernier se
verrouille automatiquement à la partie supérieure de l'outil
(position montrée sur la figure 2). Les moyens permettant de
réaliser ce verrouillage n'ont pas été représentés mais sont décrits
dans le brevet européen N° 438931 précité.Figure 1 shows the tool hooked under the arm 1. By moving the
Si on considère la figure 2, on constate que le contact entre
les tourillons 11 et les demi-paliers constitués par les crochets 4
est très réduit et qu'un effort s'exerçant, de façon répétée, selon la
flèche F2, parallèle à l'axe XX1 de la pointe P de l'outil, aura pour
effet de réaliser le matage des surfaces en contact et d'entraíner
la destruction de l'attache rapide.If we consider Figure 2, we see that the contact between the
Selon l'invention, l'organe d'accrochage présente une butée 12
susceptible de coopérer, lorsque l'outil est verrouillé, avec une
butée 13 prévue sur l'outil.According to the invention, the attachment member has a
La butée 12 présente une surface de contact 14 concave et la
butée 13 présente une surface de contact 15 convexe, la butée 12
étant fixe par rapport à l'organe 3 et celle 13 étant fixe par
rapport à l'outil 2.The
Les deux surfaces 14 et 15 se déplacent sur un cylindre fictif
dont l'axe est confondu avec celui des tourillons 11. En toute
rigueur et pour des raisons mécaniques, les surfaces 14 et 15
évoluent sur deux cylindres fictifs distincts, la différence de
rayons entre les deux cylindres résultant du jeu mécanique
nécessaire entre les deux surfaces. Il est souhaitable que ce jeu
soit aussi réduit que possible.The two
Lors de la saisie de l'outil, les deux butées occupent les
positions montrées sur la figure 1, il est à noter que, dans cette
position, la butée 12 est "escamotée" par rapport au berceau semi-cylindrique
formé par les crochets 4 et qu'elle ne peut pas
s'opposer à la pénétration des tourillons dans ledit berceau.When entering the tool, the two stops occupy the
positions shown in Figure 1, it should be noted that in this
position, the
Lors du pivotement de l'organe d'accrochage 3, la butée 12
pivote dans le même sens et vient se positionner, à la fin du
verrouillage, au-dessus de la butée 13. Dans cette dernière
position, les efforts auxquels est soumis l'outil (ceux s'exerçant
selon la flèche F2) sont transmis à l'organe d'accrochage par la
butée 13 qui coopère avec celle 12 et non par les tourillons 11. Les
efforts qui s'exercent en sens inverse sont encaissés par le
berceau semi-cylindrique formé par les crochets 4.During the pivoting of the
Les butées 12 et 13 sont situées dans des plans distincts de
ceux contenant les crochets. De préférence, la butée 13 est
disposée entre les tourillons 11 et celle 12 est rendue solidaire de
la traverse 5.The
Bien que, dans le mode de réalisation décrit en regard des figures 1 et 2, le contact entre les deux butées s'étende sur une longueur d'arc inférieure à 180°, rien n'empêche que ce contact s'étende sur une longueur d'arc voisine de 180° par un dimensionnement judicieux de l'attache rapide, dimensionnement qui est à la portée de l'homme de l'art.Although, in the embodiment described with regard to Figures 1 and 2, the contact between the two stops extends over a arc length less than 180 °, nothing prevents this contact extends over an arc length close to 180 ° by a judicious sizing of the quick coupler, sizing which is within the reach of those skilled in the art.
Si, dans le cas de l'outil des figures 1 et 2, le contact entre
les crochets et les tourillons 11 s'effectue selon une surface qui
est suffisamment importante, l'expérience a montré que ce n'était
pas le cas pour d'autres outils.If, in the case of the tool of FIGS. 1 and 2, the contact between
the hooks and the
La présente invention permet de remédier à cet inconvénient, comme cela va ressortir de la description ci-dessous faite en regard des figures 3 et 4.The present invention overcomes this drawback, as will emerge from the description below made in see Figures 3 and 4.
Les organes communs aux cinq figures seront affectés des mêmes références.The organs common to the five figures will be affected by same references.
La figure 3 montre l'accrochage d'un godet 16 à l'aide d'un
organe d'acccrochage 3. A cet effet, le godet 16 comporte un arbre
17, fixe par rapport audit godet.Figure 3 shows the attachment of a
Selon l'invention, l'arbre 17 présente deux butées 18 et 19,
diamétralement opposées, susceptibles de coopérer, lorsque le
godet est verrouillé, avec deux butées 20 et 21 portées par
l'organe d'accrochage 3.According to the invention, the
Les butées présentent des surfaces de contact 22 et 23
analogues à celles 14 et 15.The stops have
Dans l'exemple des figures 3 et 4, les butées 20 et 21 sont
disposées vers l'extérieur par rapport à l'axe de l'arbre 17, mais
cette disposition peut être inversée comme cela ressort de la
figure 5.In the example of FIGS. 3 and 4, the
En se reportant à la figure 5, on voit que l'arbre 17 présente
deux butées 24 et 25 susceptibles, lorsque l'outil est verrouillé, de
coopérer avec deux butées 26 et 27 portées par l'organe 3.Referring to Figure 5, we see that the
Claims (4)
- Device for fixing a tool at the extremity of the arm of a hydraulic shovel or silimar element with the aid of a quick fastener constituted by a hooking member joined to the extremity of the arm and comprising a cradle able to pick up a shaft or journals rendered integral with the tool, characterised in that the hooking member (3) has a stop (12) able to cooperate with a stop (13) disposed at the periphery of the shaft or journals (11) of the tool (2) when the hooking member is locked on said tool.
- Device according to claim 1, characterised in that the stop (12) has a concave contact surface (14) and in that the stop (13) has a convex contact surface (15), each surface being constituted by a portion of the surface of a cylinder whose axis is merged with that of the shaft of the tool or journals.
- Device according to claim 1 or 2, characterised in that the shaft (17) of the tool has two stops (18-19 or 24-25) able, when the toll is in a locked position, to cooperate with two stops (20-21 or 26-27) borne by the member (3).
- Device according to one of claims 1 to 3, characterised in that the stops borne by firstly the shaft (17) and secondly those borne by the hooking member (3) are diametrical.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9411631A FR2725223B1 (en) | 1994-09-29 | 1994-09-29 | IMPROVEMENTS ON DEVICES FOR ATTACHING A TOOL AT THE END OF THE ARM OF A HYDRAULIC SHOVEL OR THE LIKE |
| FR9411631 | 1994-09-29 | ||
| FR9506566 | 1995-06-02 | ||
| FR9506566A FR2725224B1 (en) | 1994-09-29 | 1995-06-02 | IMPROVEMENTS ON DEVICES FOR ATTACHING A TOOL AT THE END OF THE ARM OF A HYDRAULIC SHOVEL OR THE LIKE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0704577A1 EP0704577A1 (en) | 1996-04-03 |
| EP0704577B1 true EP0704577B1 (en) | 2000-02-09 |
Family
ID=26231431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95401790A Expired - Lifetime EP0704577B1 (en) | 1994-09-29 | 1995-07-28 | Quick-coupling for connecting implements to an excavator |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0704577B1 (en) |
| AT (1) | ATE189726T1 (en) |
| DE (1) | DE69514973T2 (en) |
| DK (1) | DK0704577T3 (en) |
| ES (1) | ES2144588T3 (en) |
| FR (1) | FR2725224B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2749332B1 (en) * | 1996-05-30 | 1998-07-03 | Morin Freres | DEVICE FOR ATTACHING A TOOL AT THE END OF THE ARM OF A MECHANICAL SHOVEL |
| FR2760029A1 (en) * | 1997-02-24 | 1998-08-28 | Case France | Attachment for holding excavating buckets or similar tools |
| DE102005056505B3 (en) | 2005-11-28 | 2007-02-08 | Robert Riedlberger | Quick-change fixing device for tools has centring discs fixed on catch bolt and a control plate fixed on a counter member so that complete engagement of device is only possible when bolt has reached lowest position in catch hook |
| DE102017000852B4 (en) * | 2017-01-31 | 2020-11-05 | Markus Riedlberger | Safety device against unintentional falling out of tools from a quick-change device |
| DE102017130436A1 (en) * | 2017-12-19 | 2019-06-19 | Oilquick Deutschland Gmbh | Adapter, quick coupler and quick-change system |
| DE102017130437A1 (en) * | 2017-12-19 | 2019-06-19 | Oilquick Deutschland Gmbh | Quick coupler, adapter and quick-change system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791834A (en) * | 1971-12-01 | 1973-03-16 | Verachtert Antonius P | EXCAVATOR |
| IT1058122B (en) * | 1975-06-21 | 1982-04-10 | Orenstein & Koppel Ag | QUICK CHANGE DEVICE FOR WORK EQUIPMENT OF HYDRAULIC EXCAVATORS |
| FR2657596B1 (en) * | 1990-01-26 | 1992-04-24 | Morin Freres | DEVICE FOR FIXING A BUCKET, OR THE LIKE, AT THE END OF THE ARM OF A LOADER. |
| DE9204711U1 (en) * | 1992-04-05 | 1992-07-16 | Eisenwerke Kaiserslautern Gmbh, 6750 Kaiserslautern | Quick-change device for construction machinery |
-
1995
- 1995-06-02 FR FR9506566A patent/FR2725224B1/en not_active Expired - Fee Related
- 1995-07-28 AT AT95401790T patent/ATE189726T1/en active
- 1995-07-28 ES ES95401790T patent/ES2144588T3/en not_active Expired - Lifetime
- 1995-07-28 EP EP95401790A patent/EP0704577B1/en not_active Expired - Lifetime
- 1995-07-28 DK DK95401790T patent/DK0704577T3/en active
- 1995-07-28 DE DE69514973T patent/DE69514973T2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2725224B1 (en) | 1997-04-18 |
| ES2144588T3 (en) | 2000-06-16 |
| DE69514973T2 (en) | 2000-07-27 |
| FR2725224A1 (en) | 1996-04-05 |
| EP0704577A1 (en) | 1996-04-03 |
| ATE189726T1 (en) | 2000-02-15 |
| DK0704577T3 (en) | 2000-07-24 |
| DE69514973D1 (en) | 2000-03-16 |
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