EP2013421A1 - Coupleur pour engin de travaux a deverrouillage mixte - Google Patents
Coupleur pour engin de travaux a deverrouillage mixteInfo
- Publication number
- EP2013421A1 EP2013421A1 EP07731311A EP07731311A EP2013421A1 EP 2013421 A1 EP2013421 A1 EP 2013421A1 EP 07731311 A EP07731311 A EP 07731311A EP 07731311 A EP07731311 A EP 07731311A EP 2013421 A1 EP2013421 A1 EP 2013421A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- coupler
- piston
- unlocking
- bore
- 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
- 238000010276 construction Methods 0.000 title claims description 3
- 230000000284 resting effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 1
- 238000005461 lubrication Methods 0.000 description 3
- 230000016571 aggressive behavior Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- E02F3/3663—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 field of the invention relates to a coupler or attachment device for the rapid attachment of a tool, bucket or the like to the end of the articulated arm of an excavating machine or hydraulic excavator or similar machine .
- the invention more particularly relates to the mode of unlocking the coupler with the tool.
- Excavator-type machines or excavators have at the end of the arm a deformable parallelogram, moved by a jack, which allows the rotation and movement of a tool, for example a bucket.
- This tool is advantageously fixed detachably via a coupler, also called "quick coupler”.
- FR patent No. 0 2,657,596 issued to Morin Brothers a quick coupler of a bucket on an excavator.
- the device taught is a coupler which allows the fixing of a bucket on the end of the articulated arm of the machine without the intervention of a person other than the driver of the machine, and without it having to leave his cabin.
- the coupler is attached to the articulated arm and consists of two hooks coming to rest on a cylindrical beam integral with the bucket. The position of the bucket in the hooks is maintained by an automatic locking system.
- the locking system of the coupler on the bucket comprises at least one cam rotatably mounted on the coupler and driven by a spring to come into contact with a bearing face of the bucket.
- Unlocking is performed manually by the driver of the machine, using a key forming a lever arm.
- a coupler is reliable and powerful but the patent FR 2,657,596 teaches a manual release without giving the possibility of adapting a hydraulic unlocking device.
- the technical problem for the coupler manufacturer of one of the two types above is that the manufacture of the parts for a hydraulic unlock coupler or for a manual unlocking coupler is specific to the mode of unlocking the coupler.
- existing devices require the user to choose a priori unlocking device. These disadvantages penalize the manufacturer in terms of logistics and cost of the unlocking function.
- the object of the present invention is to propose an attachment device, the unlocking of which, to separate the tool from the coupler, is achieved by a manual device or by a hydraulic device in a mixed manner thanks to structures comprising a maximum of identical components to enable optimization of the industrial manufacturing and ability to adapt the coupler device for hydraulic or mechanical operation.
- a cam mounted in rotation on a coupler body and arranged to come into contact with a bearing face of the tool in at least one locking position of the tool with the coupler, characterized in that:
- the cam is driven towards its locking position by means of a spring in compression between a stop device mounted in a bore of the coupler body and a first face of a piston movable in said bore, the spring pushing the piston connected, by a first FR2007 / 000646
- a chamber is formed by the piston and a bottom of the bore opened by a supply pipe, the piston comprising a peripheral groove,
- the cam comprises connecting means with an unlocking object which allows to exert an unlocking torque on the cam.
- One objective is to propose a hydraulic unlocking of the coupler.
- liquid distribution means under pressure in the chamber are connected by a connection to the supply conduit to act on a second face of the piston opposite to the first face subjected to the action of the spring and push the connecting rod driving the cam from the locking position to an unlocked position, to achieve a hydraulic unlocking of the coupler.
- Another objective is to provide manual unlocking of the coupler.
- the unlocking object is a key cooperating with the cam and comprising a lever on which an unlocking force is applied to exert the unlocking torque and drive the cam in rotation towards an unlocking position, compressing the spring by support between the piston and the stop by means of the force transmitted by the connecting rod to achieve manual unlocking of the coupler.
- a plug closes the supply conduit, the piston being mounted without a seal in the bore and having a bore or a longitudinal groove opening into the peripheral groove and placing the chamber in communication with a portion of the bore containing the spring.
- the cam comprises on the one hand a surface of revolution along its axis of rotation, disposed around a shaft held in bearings of the coupler body, the cam further comprising a contact surface for cooperate with the support face of the tool, the contact surface of the cam having a profile, in a plane perpendicular to its axis of rotation, eccentric radius substantially increasing in the opposite direction of the lock.
- Another objective relates to innovations for the two modes of operation in hydraulic or manual unlocking.
- the hooks and the coupler body are made from the same piece of machined foundry.
- joints between the connecting rod and the piston, between the connecting rod and the cam and between the cam and the coupler are made by means of materials lubricated for life.
- a cap resting on the coupler and on a lateral plane face of the cam, perpendicular to the axis of rotation of the cam, sealingly closes a space comprising the connecting rod, the spring, and a part in which is the articulation between the connecting rod and the cam.
- the coupler comprises at least a second bore, a second piston, a second spring, a second feed pipe and a second connecting rod to perform a double control of the cam.
- FIG. 1 represents a perspective view of an example of a mixed unlocking coupler according to the invention
- FIG. 2 represents a sectional view of an example of a mixed unlocking coupler according to the invention
- FIG. 3 shows a side view of an example of a coupler according to the invention used by an excavating machine
- FIG. 4 represents a side view of an exemplary coupler according to the invention arranged on an arm and connected to a bucket;
- FIG. 5 represents a perspective view of an exemplary coupler according to the invention linked to a bucket
- FIGS. 6 to 8 show side views of an exemplary coupler during automatic coupling, with three successive positions of the cam;
- FIG. 9 represents a sectional view of an exemplary control device of a coupler according to the invention, in the hydraulic unlocking mode
- FIG. 10 represents a side view of an example of a manual unlocking key
- FIG. 11 shows a sectional view of an example of a control device of a coupler according to the invention, in manual unlocking mode by the key shown in Figure 10;
- FIG. 12 shows a sectional view through the axis of rotation of the cam of an exemplary coupler according to the invention
- FIG. 13 is a perspective view of the piston of an exemplary coupler according to the invention.
- FIG. 14 is a partial sectional view of the piston disposed in the bore of an exemplary coupler according to the invention.
- FIG. 15 is a perspective view of an example of a coupler with two pistons and two connecting rods according to the invention.
- FIG. 16 is a perspective view of an exemplary coupler equipped with a manual unlocking key.
- the coupler (200) is fixed on an arm (3) which is connected to an arrow (2) of a shovel (1) hydraulic or a similar machine.
- the coupler (200) according to the invention makes it possible to hold a bucket (100) securely.
- the arm (3) can rotate the combination of the bucket and the coupler, acting on two mutually parallel axes (31). in bearings in side flanks (225) of the coupler.
- a lower part forms a jaw (211, 201) intended to connect a bucket (100) or another tool.
- the jaw is formed by two semicircular gripping hooks (201) and at least one axially pivotable locking cam (211) about a shaft (221).
- the hooks (201) are interconnected by at least one transverse bridge (224) of the coupler body, and two bosses (226) are provided in the coupler body opposite the hooks (201) to be traversed. by two holes (212) and to serve as a support for the shaft (221) of rotation of the cam (211).
- the hooks (201) of semicircular type are coaxial and accommodate a beam (112) attachment belonging to the tool, such as the bucket (100).
- the locking cam (211) is intended to come into contact with a bearing face (110) to effect locking.
- the automatic attachment of the bucket on the coupler according to the invention is achieved by the cam (211) pushed towards its locking position under the action of a spring (208).
- the arm (3) of the machine is controlled so as to place the hooks (201) for gripping under the beam (112) for attachment of the bucket (100).
- the arm (3) is then controlled in a vertical translation, to lift the tool (100) which is then oriented relative to the coupler (200) but free to rotate. Then the arm (3) is controlled so as to pivot the coupler (200) which places the cam bearing on the spout (111) connected to the tool, as shown in Figure 6.
- the spout (111) is particularly shown alone with the cam (211) resting on the spout (111).
- the cam (211) pushed by the spout (111) pivots on the shaft (221) and relative to the coupler body, in the direction (D 1) reverse lock, until the tip of the cam (211) is in contact with the tip of the nose (111), as shown in Figure 7.
- the nozzle is also shown alone with the cam (211), the tip of the nozzle meeting the tip of the cam (211).
- the contact between points is followed by a pivoting in the direction (D2) of the locking of the cam (211) under the action of the spring (208), a surface, with an eccentric profile, belonging to the cam (211) bearing on the surface (110) at the end of the spout (111).
- the bucket (100) is then locked with the coupler 46
- the hooks (201) retain the bucket left free in rotation, orienting itself under the action of its weight, until locking. After locking, the bucket is held in the hooks, and resting on the eccentric surface (214) of the cam, and against the shaft (221) of the cam held in bearings (212) of the coupler body.
- the cam (211) is rotatably mounted relative to the body of the coupler, the shaft (221) of the cam (211) being disposed on the side of the opening of the hooks (201) accommodating the beam (112) of the bucket.
- the present invention is first novel by its structure.
- the cam (211) whose locking is automatic, is in fact actuated by a connecting rod (209) connected to the cam by a hinge (213) with an axis parallel to the axis (202) of rotation of the cam (211) .
- the rod (209) is connected to a control piston (205) by a hinge (206), the piston (205) being movable in translation in a bore (203, fig.1) made in the body the coupler (200).
- the control piston (205) is actuated by a spring (208) which pushes the piston towards the bottom of the bore (203), the spring (208) being at its other end bearing against a stop segment (210). ).
- the diameter of the spring (208) is close to the diameter of the bore (203) so T / FR2007 / 000646
- the spring (208) is traversed by the rod (209) hinged to the cam (211). Under the action of the spring (208), the piston (205) tends to pull the connecting rod (209) towards the bottom of the bore, rotating the cam (211) about its axis (202) towards its position. lock in the direction indicated by the arrow D2.
- the spring (208) bears against a ring screwed into the bore (203) or against two rods passing through the bore (203) of the coupler (200) on each side of the connecting rod ( 209).
- the spring will be more or less compressed.
- the contact of the cam (211) on the spout (111) will gradually compress the spring as shown in Figure 6 and this up to a value close to the maximum at the contact position between the nose tip and the tip of the cam (211), shown in Figure 7.
- the spring then relaxes to place the cam in a locking position shown in Figure 8.
- the piston (205) is at a non-zero distance from the bottom of its bore (203), which corresponds to a stroke reserve allowing the clearance to be compensated between the contact surface (214) of the cam (211) and the bearing face (110) of the spout (111).
- a direct action on the cam is possible in the direction (D1) of the spring compression by means of a manual key (400) having means (401, 403) for fixing on the cam (211). ) and a lever (402) for applying an unlocking force.
- the key is in fact fixed to the cam (211) and resting on it, the lever (402) allowing the user to exert an unlocking torque on the cam about its axis of rotation.
- This manual unlocking by means of the removable key (400) resting on the cam (211) thus makes it possible to disengage the contact surface (214) of the cam (211) from the support face (110) on the 'tool.
- a key (400) mounted on the cam (211) is, for example, shown in Figure 16.
- the lever arm (402) allows the user to apply a force (4021) for unlocking.
- the means for fixing the key on the cam comprise a hole (401) cylindrical around a stud (215) cylindrical complementary to the cam, a surface (403) FR2007 / 000646
- the key (400) is then pivoted about the stud (215) until its bearing surface (403) meets the body of the cam (211).
- the bearing surface (403) of the key and the cooperating surface of the body of the cam (211) both have an arcuate profile.
- the key, held around the stud (215) and resting on the body of the cam (211), is then secured to the cam.
- the arm (402) lever on which the user exerts his effort (4021) then allows to exert a torque for rotation of the cam about its axis in the direction (D1) of the unlocking.
- the tool (100) is then released by its own weight by pivoting in the hooks (201) of the coupler to be then deposited on the ground and spaced from the hooks (201) by controlling the arm (3).
- the fixing stud belongs to the key and engages in a hole belonging to the cam.
- the key comprises a gripping finger bearing against the leading edge of the contact surface (214) of the cam (211) and the body of said cam, to exert an unlocking torque.
- the piston (205) forms a chamber (220) with the bore (203), sealed by a seal (207, Fig. 9).
- This expansible chamber (220) fed with hydraulic fluid makes it possible to carry out a thrust on the piston (205) compressing the spring (208).
- Hydraulic unlocking requires the addition of a control block on the hydraulic excavator for diverting the hydraulic energy from the machine to the chamber (220) of the actuator constituted by the piston (205) provided with its seal (207). ) sliding in the bore (203).
- the oil is fed through a pipe (223) through the hydraulic connection (204) into the bore (203) to advance the piston (205) by compressing the spring (208). ) to the stop ring (210).
- the piston (205) in translation pushes the rod (209) which converts the translational movement of the piston (205) into a rotational movement of the cam (211) in the direction (D1) of the unlocking.
- the Hydraulic unlocking is thus performed remotely by the operator of the machine.
- the present invention thus allows two modes of unlocking.
- the transition from the manual unlocking mode (Fig. 11) to the hydraulic unlocking mode (Fig. 9) is limited to adding to the system in the manual mode of the seal (207) and the connection (204) to the hydraulic circuit.
- the coupler (200) is for example made by a casting having, without limitation, in its rear part, the locking device according to the invention. Said device can then be completely integrated in the foundry, in particular to protect the cam (211) and the entire locking system against possible shocks caused by projecting rocks.
- the coupler is mechanically welded and machined to produce the same functional surfaces.
- the piston (205) according to the invention, shown in FIGS. 13 and 14, comprises guide surfaces (229) in the bore (203) in which the piston (205) is arranged.
- a cylindrical hole (228) is formed in the piston (205) and is intended to accommodate the axis about which the connecting rod (209) is articulated.
- the piston (205) slides in the bore (203) between an unlocked position in which the spring (208) is compressed and a locked position, wherein the piston (205) is in a position close to the bottom of the bore ( 203).
- the groove (227) for housing the seal (207) at the periphery of the piston is, for example, empty.
- the peripheral groove (227) is similar to a groove around the piston.
- the piston comprises an air circulation channel connecting the chamber (220) located at the bottom of the bore (203) with the portion of the bore (203) accommodating the spring (208). This channel is cut by the groove (227) housing the seal (207).
- the air circulation channel is made by a longitudinal bore (217) or a longitudinal groove (216). This channel passes right through the piston and opens into the groove (227) housing the seal.
- the depth of the longitudinal groove does not exceed that of the groove (227) housing the seal (207).
- the circulation channel lets the air pass from one side of the piston to the other so as not to impede operation.
- the conduit (223) supply can be completely closed to protect the piston from external aggression.
- the sealing of the actuator chamber (220) is accomplished by placing a seal (207) in the groove (227) as shown in Figure 14.
- the hole (217) or the longitudinal groove (216) are thus closed by the seal (207).
- the supply conduit (223) opens out of the coupler (200) at a hydraulic coupling (204) for connection to a hydraulic controller.
- a cover (218) for closing is shown transparent in Figure 1, so as to show the articulation (213) of the connecting rod (209) on the cam (211). Indeed, to function without maintenance, the device must be properly protected by a closure cover (218) which seals between the cam (211) and the body of the coupler (200) and protects the joints (213, 206 ), the piston (205), the spring (208) and the connecting rod (209) external aggressions.
- the cover (218) is for example placed above the articulation, (213) bearing against the body of the coupler (200) and against a face (230) concentric with the axis (202) of the cam (211) .
- the cover (218) does not bear against the cylindrical face (230) of the cam (211), but has a flat surface (219) abutting on the cam, perpendicular to the axis of rotation (202), providing both a seal and a limitation in translation of the cam.
- the present invention has the advantage of not requiring lubrication and avoids the addition grease that would be difficult to implement in the space provided.
- the locking and unlocking device comprises for the joints of the connecting rod and those of the cam, materials operating without lubrication or external lubrication. The choice of these materials is left to those skilled in the art who will advantageously use the composite or plastic materials charged to ensure this property.
- the translation of the cam on its axis is bounded laterally by plane surfaces (219, fig.12) disposed close to the shaft (221) and perpendicular to it.
- plane surfaces (219, fig.12) disposed close to the shaft (221) and perpendicular to it.
- These translational limiting surfaces are part, without limitation, of the cover, the coupler (200), the cam (211) or additional parts such as seals.
- the same cam (211) can be controlled by two devices according to the invention, the assembly consisting of the coupler with its cam being made symmetrically with respect to a plane (S) longitudinal perpendicular to the axis of rotation of the cam, as shown in FIG. 15.
- the two devices each comprising a bore (203) associated with a piston (205) actuated by a spring (208) and connected in rotation to a connecting rod (209) are arranged on each side of the coupler (200).
- An unlocking tool fits, for example, in the same way on a pin (215) of the cam to exert an unlocking torque on the cam (211).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Shovels (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0603552A FR2900168B1 (fr) | 2006-04-21 | 2006-04-21 | Coupleur pour engin de travaux a deverrouillage mixte |
PCT/FR2007/000646 WO2007122317A1 (fr) | 2006-04-21 | 2007-04-18 | Coupleur pour engin de travaux a deverrouillage mixte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2013421A1 true EP2013421A1 (fr) | 2009-01-14 |
EP2013421B1 EP2013421B1 (fr) | 2011-11-30 |
Family
ID=37529435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07731311A Not-in-force EP2013421B1 (fr) | 2006-04-21 | 2007-04-18 | Coupleur pour engin de travaux a deverrouillage mixte |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090191038A1 (fr) |
EP (1) | EP2013421B1 (fr) |
AT (1) | ATE535650T1 (fr) |
CA (1) | CA2650045A1 (fr) |
ES (1) | ES2374579T3 (fr) |
FR (1) | FR2900168B1 (fr) |
WO (1) | WO2007122317A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2939453B1 (fr) * | 2008-12-09 | 2019-04-05 | Ateliers De Constructions Du Beaujolais | Dispositif de connexion a un coupleur rapide et godet equipe de ce dispositif |
FR2944533B1 (fr) * | 2009-04-17 | 2011-04-22 | Morin | Dispositif de connexion, coupleur d'attache rapide et ensemble de connexion. |
FR2944534B1 (fr) * | 2009-04-20 | 2016-09-23 | Morin | Module de blocage pour un ensemble d'attache rapide d'un outil sur un engin de travaux publics. |
FR2994576B1 (fr) * | 2012-08-14 | 2015-09-04 | Marcel Morin | Ensemble de fixation d'un outil, notamment d'un godet, a un engin de chantier |
GB201315938D0 (en) | 2013-09-06 | 2013-10-23 | 1708828 Onatio Ltd | Self-locking attachment coupler for tractor/loader |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731745A (en) * | 1972-02-01 | 1973-05-08 | Deere & Co | Combined draft hook operating and draft sensing |
GB1500404A (en) * | 1976-09-03 | 1978-02-08 | Kermode D | Torque generating actuator |
DE3312442C2 (de) * | 1983-04-07 | 1986-05-28 | Karl Schaeff GmbH & Co, Maschinenfabrik, 7183 Langenburg | Schnellwechselvorrichtung für Arbeitswerkzeuge an einem Baggerausleger |
DE3545110A1 (de) * | 1984-12-24 | 1986-06-26 | Linde Ag, 6200 Wiesbaden | Zylinder-kolben-aggregat |
FR2609075B1 (fr) * | 1986-12-26 | 1991-08-30 | Poncin Gilles | Dispositif d'attache rapide pour equipements d'engins de genie civil et de manutention |
NZ222864A (en) * | 1987-06-04 | 1991-02-26 | William John Balemi | Connector for attaching implements to vehicle boom |
GB8914927D0 (en) * | 1989-06-29 | 1989-08-23 | Steelfab Ltd | Implement attachment coupler |
IT1233223B (it) * | 1989-07-19 | 1992-03-20 | Same Spa | Terminale a gancio con agganciamento automatico per l accoppiamento di attrezzi o utensili ad un trattore agricolo |
FR2657596B1 (fr) * | 1990-01-26 | 1992-04-24 | Morin Freres | Dispositif pour fixer un godet, ou analogue, a l'extremite du bras d'un chargeur. |
GB9214255D0 (en) * | 1992-07-04 | 1992-08-19 | Massey Ferguson Mfg | Implement attachement coupler |
FR2717198B1 (fr) * | 1994-03-11 | 1996-04-05 | Morin Freres | Dispositif pour déverrouiller une came rotative. |
AT2322U3 (de) * | 1998-05-19 | 1999-04-26 | Baumaschinentechnik Ges M B H | Schnellwechselvorrichtung für bagger mit verriegelungssicherung |
US6902346B2 (en) * | 2002-03-15 | 2005-06-07 | Hendrix Manufacturing, Ltd. | Hydraulic coupler |
US20070166143A1 (en) * | 2006-01-13 | 2007-07-19 | Hart Michael D | Quick coupler lock system |
-
2006
- 2006-04-21 FR FR0603552A patent/FR2900168B1/fr not_active Expired - Fee Related
-
2007
- 2007-04-18 AT AT07731311T patent/ATE535650T1/de active
- 2007-04-18 US US12/297,856 patent/US20090191038A1/en not_active Abandoned
- 2007-04-18 ES ES07731311T patent/ES2374579T3/es active Active
- 2007-04-18 CA CA002650045A patent/CA2650045A1/fr not_active Abandoned
- 2007-04-18 WO PCT/FR2007/000646 patent/WO2007122317A1/fr active Application Filing
- 2007-04-18 EP EP07731311A patent/EP2013421B1/fr not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2007122317A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2650045A1 (fr) | 2007-11-01 |
FR2900168B1 (fr) | 2010-04-23 |
FR2900168A1 (fr) | 2007-10-26 |
EP2013421B1 (fr) | 2011-11-30 |
ES2374579T3 (es) | 2012-02-20 |
ATE535650T1 (de) | 2011-12-15 |
WO2007122317A1 (fr) | 2007-11-01 |
US20090191038A1 (en) | 2009-07-30 |
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