EP0671513A1 - Dispositif pour déverrouiller une came rotative notamment pour chargeur à godet - Google Patents
Dispositif pour déverrouiller une came rotative notamment pour chargeur à godet Download PDFInfo
- Publication number
- EP0671513A1 EP0671513A1 EP95400456A EP95400456A EP0671513A1 EP 0671513 A1 EP0671513 A1 EP 0671513A1 EP 95400456 A EP95400456 A EP 95400456A EP 95400456 A EP95400456 A EP 95400456A EP 0671513 A1 EP0671513 A1 EP 0671513A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- cam
- piston
- bucket
- unlock
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
-
- 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
Definitions
- the present invention relates to a device for unlocking a rotary cam.
- European Patent No. 438931 which relates to a device for automatically fixing a bucket to the end of the arm of a loader by means of a hooking member comprising rotary cams which provide a locking function, said cams, under the action of springs bearing against a shaft carried by said bucket.
- the device of the invention which overcomes this drawback, is remarkable in that the body of the cam is integral with a cylinder comprising a piston whose displacement, under the effect of a fluid introduced into said cylinder, is likely to rotate the cam against the action of its return spring.
- FIG. 1 shows an assembly to which, among other things, the device of the invention can be applied, it can be seen that the bucket 1 is attached to the end of an arm 2 by means of an attachment member 3.
- the attachment member comprises a shaft 4, on which are rotatable cams 5, and the bucket 1 has a shaft 6 under which said cams can bear by pivoting according to arrow F1 under the action of springs.
- the rear part of the bucket 1 has a cradle in which the shaft 5 is housed during the pivoting of the attachment member 3.
- This device allowed the automatic attachment of the bucket, but to perform its stall, the operator of the machine had to get off and manually rotate the cams 5 in the opposite direction to the arrow F1 to unlock said bucket.
- the aim of the present invention which overcomes this drawback, is to propose a device which, for example, applied to the bucket described with reference to FIG. 1, will allow the user to perform the unlocking without having to intervene manually, therefore, according to the example chosen, without getting off his machine.
- the cam 5 is mounted freely in rotation on the shaft 4 belonging to a movable member relative to a second member comprising the shaft 6 or any stop capable of fulfilling the same function.
- the shaft 4 is immobilized in rotation relative to its support, that is to say, in the case of the example of FIG. 1, relative to the attachment member 3.
- this result is obtained by providing on the body of the cam 5 a cylinder 7 having a piston 8 whose movement, under the effect of a fluid introduced into said cylinder, causes said cam to pivot according to the arrow F2.
- the shaft 4 has teeth 9 engaged with teeth 10 provided on the head 8a of the piston 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
- Shovels (AREA)
- Gears, Cams (AREA)
- Hydraulic Motors (AREA)
- Transmission Devices (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Pinball Game Machines (AREA)
- Holders For Apparel And Elements Relating To Apparel (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
- La présente invention est relative à un dispositif pour déverrouiller une came rotative.
- Il existe des ensembles mécaniques selon lesquels deux organes, articulés l'un à l'autre, peuvent être immobilisés dans une position déterminée à l'aide d'une came pouvant pivoter librement sur un arbre du premier organe pour prendre automatiquement appui contre un arbre du second organe sous l'action de ressorts.
- Un exemple d'un tel ensemble est décrit dans le brevet européen N° 438931 qui concerne un dispositif pour fixer automatiquement un godet à l'extrémité du bras d'un chargeur par l'entremise d'un organe d'accrochage comportant des cames rotatives qui assurent une fonction de verrouillage, lesdites cames, sous l'action de ressorts prenant appui contre un arbre porté par ledit godet.
- Le dispositif décrit dans le brevet précité ne donne pas totalement satisfaction. En effet, si ce dispositif permet l'accrochage automatique du godet, une intervention humaine est nécessaire lors du décrochage pour déverrouiller les cames en les faisant pivoter en sens inverse de celui selon lequel les ressorts les poussent.
- Le dispositif de l'invention, qui remédie à cet inconvénient, est remarquable en ce que le corps de la came est solidaire d'un cylindre comportant un piston dont le déplacement, sous l'effet d'un fluide introduit dans ledit cylindre, est susceptible de faire pivoter la came à l'encontre de l'action de son ressort de rappel.
- La présente invention sera mieux comprise par la description qui va suivre faite en se référant au dessin annexé à titre d'exemple indicatif seulement sur lequel :
- -la figure 1 montre la fixation d'un godet à l'extrémité du bras d'un chargeur à l'aide d'un dispositif tel que celui décrit dans le brevet européen N° 438931;
- la figure 2 est une vue partielle et à plus grande échelle montrant le dispositif de l'invention.
- En se reportant à la figure 1, qui montre un ensemble auquel, entre autres, peut être appliqué le dispositif de l'invention, on voit que le godet 1 est accroché à l'extrémité d'un bras 2 par l'entremise d'un organe d'accrochage 3.
- L'organe d'accrochage comporte un arbre 4, sur lequel sont montées des cames rotatives 5, et le godet 1 présente un arbre 6 sous lequel lesdites cames peuvent prendre appui en pivotant selon la flèche F₁ sous l'action de ressorts.
- La partie arrière du godet 1 présente un berceau dans lequel se loge l'arbre 5 lors du pivotement de l'organe d'accrochage 3.
- Pour plus de détails sur ce dispositif, on se reportera au brevet européen n° 438931 déjà cité.
- Ce dispositif permettait l'accrochage automatique du godet, mais pour effectuer son décrochage, le conducteur de l'engin devait en descendre et manuellement faire pivoter les cames 5 en sens inverse de la flèche F₁ pour déverrouiller ledit godet.
- La présente invention, qui remédie à cet inconvénient, a pour but de proposer un dispositif qui appliqué, par exemple, au godet décrit en regard de la figure 1, permettra à l'utilisateur d'effectuer le déverrouillage sans devoir intervenir manuellement donc, selon l'exemple choisi, sans descendre de son engin.
- En se reportant à la figure 2 on voit que la came 5 est montée librement en rotation sur l'arbre 4 appartenant à un organe mobile par rapport à un second organe comportant l'arbre 6 ou toute butée susceptible de remplir la même fonction. L'arbre 4 est immobilisé en rotation par rapport à son support c'est-à-dire, dans le cas de l'exemple de la figure 1, par rapport à l'organe d'accrochage 3.
- Dans la position représentée sur la figure 2, l'ensemble est verrouillé. Le problème posé consiste à commander, à distance, la rotation de la came 5 selon une direction F₂ opposée à celle F₁.
- Selon l'invention, ce résultat est obtenu en prévoyant sur le corps de la came 5 un cylindre 7 présentant un piston 8 dont le déplacement, sous l'effet d'un fluide introduit dans dans ledit cylindre, fait pivoter ladite came selon la flèche F₂.
- Selon un mode de réalisation, l'arbre 4 présente des dents 9 en prise avec des dents 10 prévues sur la tête 8a du piston 8.
- Lorsque qu'un fluide sous pression est introduit dans le cylindre 7 par son orifice 11, le piston se déplace à l'intérieur dudit cylindre selon la flèche F₃ et tend à faire pivoter l'arbre 4. Comme l'arbre 4 est fixe, ce pivotement est impossible et c'est l'ensemble came-cylindre qui pivote selon la flèche F₂, la came 5 échappant alors à l'arbre 6.
- Lorsque la pression est supprimée, les ressorts usuels rapellent la came et le piston 8 dans la position qu'ils occupaient précedemment par rapport à l'arbre 4.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9402821 | 1994-03-11 | ||
FR9402821A FR2717198B1 (fr) | 1994-03-11 | 1994-03-11 | Dispositif pour déverrouiller une came rotative. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0671513A1 true EP0671513A1 (fr) | 1995-09-13 |
EP0671513B1 EP0671513B1 (fr) | 1998-10-07 |
Family
ID=9460920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95400456A Expired - Lifetime EP0671513B1 (fr) | 1994-03-11 | 1995-03-03 | Dispositif pour déverrouiller une came rotative notamment pour chargeur à godet |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0671513B1 (fr) |
AT (1) | ATE171991T1 (fr) |
DE (1) | DE69505167T2 (fr) |
DK (1) | DK0671513T3 (fr) |
ES (1) | ES2124974T3 (fr) |
FR (1) | FR2717198B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2900168A1 (fr) * | 2006-04-21 | 2007-10-26 | Morin Soc Par Actions Simplifi | Coupleur pour engin de travaux a deverrouillage mixte |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0578447A1 (fr) * | 1992-07-04 | 1994-01-12 | Fermec Manufacturing Limited | Attelage pour outil |
EP0598689A1 (fr) * | 1992-10-16 | 1994-05-25 | Ingenjörsfirma Rason Aktiebolag | Vérin |
-
1994
- 1994-03-11 FR FR9402821A patent/FR2717198B1/fr not_active Expired - Fee Related
-
1995
- 1995-03-03 ES ES95400456T patent/ES2124974T3/es not_active Expired - Lifetime
- 1995-03-03 DE DE69505167T patent/DE69505167T2/de not_active Expired - Lifetime
- 1995-03-03 DK DK95400456T patent/DK0671513T3/da active
- 1995-03-03 AT AT95400456T patent/ATE171991T1/de active
- 1995-03-03 EP EP95400456A patent/EP0671513B1/fr not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0578447A1 (fr) * | 1992-07-04 | 1994-01-12 | Fermec Manufacturing Limited | Attelage pour outil |
EP0598689A1 (fr) * | 1992-10-16 | 1994-05-25 | Ingenjörsfirma Rason Aktiebolag | Vérin |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2900168A1 (fr) * | 2006-04-21 | 2007-10-26 | Morin Soc Par Actions Simplifi | Coupleur pour engin de travaux a deverrouillage mixte |
WO2007122317A1 (fr) * | 2006-04-21 | 2007-11-01 | Morin S.A.S. | Coupleur pour engin de travaux a deverrouillage mixte |
Also Published As
Publication number | Publication date |
---|---|
ATE171991T1 (de) | 1998-10-15 |
DE69505167T2 (de) | 1999-04-22 |
DE69505167D1 (de) | 1998-11-12 |
DK0671513T3 (da) | 1999-06-21 |
FR2717198B1 (fr) | 1996-04-05 |
ES2124974T3 (es) | 1999-02-16 |
FR2717198A1 (fr) | 1995-09-15 |
EP0671513B1 (fr) | 1998-10-07 |
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