EP2018456A1 - Quick-change device - Google Patents
Quick-change deviceInfo
- Publication number
- EP2018456A1 EP2018456A1 EP07725329A EP07725329A EP2018456A1 EP 2018456 A1 EP2018456 A1 EP 2018456A1 EP 07725329 A EP07725329 A EP 07725329A EP 07725329 A EP07725329 A EP 07725329A EP 2018456 A1 EP2018456 A1 EP 2018456A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- quick
- change device
- change
- operating position
- hydraulic
- 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
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
- E02F3/3663—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
- E02F3/3654—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/22—Joints and connections with fluid pressure responsive component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2142—Pitmans and connecting rods
Definitions
- the invention relates to a quick-change device according to the specified in the preamble of claim 1 and 9 Art.
- a first embodiment of a quick-change device is known, for example, from EP 0 483 232 B1, which consists of a quick-change device comprising an oscillating and locking device and an adapter.
- the quick coupler is the baggersei- term stem and the opposite, with the quick coupler to be coupled adapter is on a replaceable tool, eg. B. a sifting spoon arranged.
- the swivel lock described in the cited document provides, in addition to the production of the lock between the adapter and the quick coupler, a merging of a hydraulic coupling for hydraulic fluid.
- This hydraulic coupling must be brought together via a relatively wide pivoting path. Due to the spreading forces occurring during operation, the hydraulic clutch can leak and ultimately fail. In addition, it then leads to significant environmental damage.
- WO 2005/093172 Al a quick-change device is also known, which performs a pivoting movement for coupling of quick coupler and adapter and two coupling blocks.
- the coupling blocks are arranged at the free, the pivot axis opposite end, wherein a coupling block is floatingly mounted.
- a device which generates hydraulic pressure on the hydraulic clutch such that it counteracts the spreading forces.
- the force acts essentially perpendicular to the contact surfaces of the coupling blocks. Relative movements due to the elasticity of the material used or due to the floating storage are thereby avoided. In addition, a secure hydraulic connection is ensured during operation.
- this is based on the object to continue to form a quick-change device according to the type specified in the preamble of claim 1 such that while avoiding the disadvantages mentioned in simple terms the spreading forces occurring during coupling and operation in a simple manner is counteracted, so that a solubility of the hydraulic clutch is guaranteed if necessary in all cases.
- the invention is based on the finding that frictionally interconnected mechanical holding means, which are effective in coupling the hydraulic clutch, on the one hand can largely absorb the spreading forces and, on the other hand, at any time see a need-based release of the mechanical Means by releasing the frictional connection is possible. Even a flow of the material due to the high mechanical forces occurring during operation can also continue with release of the frictional connection Release the retaining means. This can also be optimized by certain structural designs according to the subclaims.
- the hydraulic coupling parts are held frictionally in the operating position by the mechanical holding means.
- At least parts of the mechanical holding means are movable from a change position to the operating position and / or from the operating position to the change position via a drive. This is particularly advantageous from the point of view of user-friendliness of the quick-change device.
- the drive for moving the mechanical holding means from the change position into or out of the operating position into the change position is designed as a hydraulic, pneumatic, electrical, mechanical and / or magnetic drive. This results in a wide field of application of the quick-change device according to the invention.
- the first coupling part may be formed as a coupling block connected to the quick coupler and the second coupling part as a coupling block connected to the adapter, the coupling blocks each comprising at least one mutually associated part of a hydraulic coupling valve.
- the coupling Blocks have the advantage that the mechanical holding means thereby easily attack the coupling blocks and / or they can be integrated into the coupling blocks.
- a power drive In order to keep the hydraulic clutch reliable even with very large spreading forces, it is advantageous if in the operating position of the hydraulic clutch, a power drive generates a force acting on the coupling parts counterforce - see WO 2005/093172 Al - to counteract the spreading forces in addition and the relieve mechanical holding means.
- the force drive for generating the counterforce and the drive for moving the mechanical holding means between the change position and the operating position are identical, in particular from the point of view of saving space and a simple construction.
- the drive for moving the mechanical holding means from the change position to the operating position may be identical, and the drive for moving the mechanical means from the operating position to the change position may be formed by another drive, in particular by a force accumulator, such as a spring.
- the drive for moving the mechanical holding means from the change position to the operating position is designed as a fluid-type, in particular a hydraulic drive with a single-acting piston.
- the drive for moving the mechanical holding means from the change position to the operating position and off The operating position in the change position as a fluida- ler, in particular hydraulic, drive be designed with double-acting piston.
- the mechanical holding means can be moved in this case in a simple manner with the working machine side existing hydraulic system. A simple connection is thereby ensured, but also a Nachr ⁇ sten to existing machines with a quick-change device according to the invention is thereby readily possible.
- the mechanical holding means comprise in particular a first part connected to the quick coupler and a second part connected to the adapter.
- the first part is preferably designed as a latch and the second part as a receptacle for the latch.
- the non-positive holding is achieved primarily by the fact that the bolt bevelled wedge-shaped in the front and the receptacle is formed accordingly.
- the bolt is still loaded with a force in the direction of operating position. This force can be generated by the drive for moving the mechanical holding means from the change position to the operating position and / or vice versa. Alternatively or additionally, however, this force can also be generated by a, possibly also switchable, energy storage.
- this is designed as a cylindrical bolt, which is conically shaped in the front region.
- Jamming even at high pressures can be easily achieved by providing a bearing clearance S in the operating position can be avoided below the bolt to the inside of the recording.
- the bearing clearance S ensures that the bolts always have one degree of freedom downwards and can therefore be released even in difficult conditions.
- a compensation of tolerances and wear takes place in that the front region of the locking bolt and the associated surfaces of the receptacle have cone surface areas which correspond to one another over a circumferential angle of up to 180 ° and which have the circumferential angle of 360 ° ° complementary peripheral surfaces of the recording with the associated peripheral surface areas of the front region of the locking bolt include the predetermined bearing clearance S.
- the pressurized bolt can always move upwards and secure holding as well as surface contact are guaranteed.
- a part of the mechanical holding means can also be designed as a rocker with a locking claw and the other part of the mechanical means as an abutment, in which case the claw and the abutment are formed wedge-shaped.
- the type of movement of the mechanical holding means from the change position to the pivot position and vice versa is a linear movement. Simple constructions are made possible by this.
- the quick coupler can be pivotable about a pivot axis and at least one locking bolt aufwei- sen, whose movement line with the pivot axis forms a working plane.
- the locking bolt is then perpendicular to the pivot axis along a first straight line movable and the coupling movement of the hydraulic clutch is along a second straight line, substantially perpendicular to the first straight line.
- the second straight line is perpendicular to the pivot axis.
- the movement of the bolt takes place from the change position to the operating position along a third straight line.
- the third straight line can run in the working plane, in particular be aligned perpendicular to the first and second straight lines and in particular run parallel to the pivot axis.
- this is based on the object of further developing a quick-change device according to the type specified in the preamble of claim 1 such that, while avoiding the mentioned disadvantages, a compact design and the same during coupling and in the case of Operation occurring spreading forces counteracted in a simple manner.
- the invention is based on the finding that a compact, but also efficient design is made possible by linear movements of the mechanical means for securing the hydraulic clutch.
- the movement of the mechanical means from the change position to the pivot position and vice versa a linear movement, in particular while the mechanical means are held in the operating position non-positively or positively.
- Figure 1 is a perspective view of a
- Quick change device with a quick coupler and an adapter, the quick coupler is connected to a bagger handle and the adapter with a sieve bucket;
- Figure 2 is a perspective view of the quick coupler device in the coupled state of a first embodiment of the invention
- Figure 3 is an enlarged partial perspective sectional view through the embodiment of Figure 2;
- Figure 4 is a perspective view of another embodiment of the invention.
- Figure 5 is an enlarged, partial perspective section of Figure 4.
- Figure 6 is a perspective view of another embodiment of the invention.
- Figure 7 is an enlarged partial longitudinal section of Figure 6;
- Figure 8 is a perspective view of another embodiment of the invention.
- Figure 9 is an enlarged, perspective view of Figure 8.
- FIG. 1 shows in perspective a boom 10 of a working machine, namely an earthmoving machine, for example an excavator.
- a quick-change device 12 is arranged, which in turn acts on a conventional sieve bucket 14.
- the quick-change device 12 consists of a boom 10 connected to the quick coupler 16 and an adapter 18.
- the adapter 18 is fixedly arranged on the sieve bucket 14.
- the boom 10 with various tools, such as the illustrated sieve bucket 14 are connected via the adapter 18.
- other tools may be used, in particular those which are hydraulically driven, such as a hydraulic hammer, hydraulic shears and the like.
- These tools are driven by a hydraulic drive powered by the working machine.
- the quick-change device 12 to a hydraulic clutch 20.
- the tool in this case the sifting bucket 14
- the strainer 14 is provided for certain applications with a hydraulic opening rear wall 22.
- the opening and closing of the rear wall 22 is ensured by means of a hydraulic drive, which is not visible here and is integrated in the sieve bucket 14.
- the hydraulic drive is connected via the hydraulic clutch 20 to the hydraulic system of the earthmoving machine.
- the hydraulic clutch 20 has an upper clutch block 20a and a lower clutch block 20b.
- the mutually associated contact surfaces of the two coupling blocks 20a, 20b are provided with flat contact surfaces. Hydraulic valves and centering pins 24, see FIGS. 3 and 4, and cleaning nozzles 26 integrated in the centering pins 24 for cleaning the hydraulic clutch are introduced into these contact surfaces.
- the adapter 18 of the quick-change device 12 comprises a base plate 28 on which a locking block 30 is provided at one end and a pivot axis 34 held by fastening tabs 32 at the end remote from the locking block 30.
- the locking block 30 has on the pivot axis 34 side facing a clamping surface 36 which is inclined to any vertical surface with respect to the base of the adapter 18 by 3 ° to 35 °, preferably by 5 ° to 15 °.
- the locking block 30 is further provided with two spaced apart, juxtaposed and conically shaped in longitudinal section, parallel to each other aligned cone openings 38.
- Each cone breakthrough 38 is in each case assigned to a locking bolt 40 of the quick coupler 16 which can be displaced into the cone opening.
- the front end of the locking bolt 40 is formed in each case as a cone end 40a.
- the cone angle of the conical apertures 38 delimited by the conical surface areas is dimensioned correspondingly and in the illustrated embodiment is 5 ° to 15 °.
- the quick coupler 16 has on its side of the pivot axis 34 of the adapter 18 side not shown here claws, which fen the pivot axis 34 fen.
- the front surface of the quick coupler 16 assigned to the clamping surface 36 of the adapter 18 has a ger nature 42, which is preferably formed by 5 ° to 15 °, with respect to the vertical - corresponding to the clamping surface 36 - inclined and also has two openings through which each one in the quick changer 16 longitudinally slidably driven locking bolt 40 can pass.
- Zentrierorgane for the purpose of lateral centering - first primary orientation - when lowering the quick coupler 16 on the adapter 18 Zentrierorgane are provided, of which the quick coupler 16 associated centering are designed as centering pins 44, which are arranged laterally next to the re-bearing surface 42 of the quick coupler 16.
- the centering pins 44 cooperate with side surfaces of the locking block 30 of the adapter 18.
- the adapter 18 has centering elements for centering the quick coupler 16 and the adapter 18 in the longitudinal direction of the clamping surface 36 in cooperation with the pivot axis 34 on - second primary alignment.
- the quick coupler 16 and thus the sliding latch bolt 40 of the quick coupler 16 are aligned in relation to the cone openings 38 in cooperation with the pivot axis 34 and thus centered as a result of the clamping surface 36 and the re-bearing surface 42.
- the coupling process between the locking bolt 40, the quick coupler 16 and the cone openings 38 of the adapter can thus take place trouble-free.
- the lower coupling block 20b is fixedly connected to the locking block 30 via a support arm.
- hydraulic outlets 46 are provided below the free end of the lower coupling block 20b.
- the locking block 30 is offset inwards relative to the lower coupling block 20b and the hydraulic outlets 46, so that the hydraulic outlets 46 can be connected to hydraulic hoses / hydraulic lines 82 without further ado.
- the upper coupling block 20 a is connected via a yoke with two arms 48 to the quick coupler 16. Between the upper coupling block 20a and the arms 48 damping elements 50 are interposed, so that the upper coupling block 20a is floatingly mounted.
- the lower coupling block 20b can also be mounted in a floating manner via damping elements 50 and the upper coupling block 20a can be arranged directly on the yoke or arms 48. In the embodiments shown in the figures, however, one has on the representation of the floating mounting of the upper
- Coupling block 20a limited, since the alternative embodiment for a person skilled in the art is easily understood.
- an actuating bolt 68 is mounted in a sleeve 70.
- the actuating pin 68 is hydraulically driven, is cylindrical and formed at its front end 72 as a wedge.
- the lower coupling block 20b is laterally bolted to the support arm 78 fixedly connected to the adapter 18.
- the support arm 78 has an opening 80 for the wedge 72 of the actuating bolt 68.
- the opening 80 of the support arm 78 is in each case adapted to the wedge 72, ie it is also designed to be wedge-shaped in the direction of the coupling block 20a.
- On each side of the lower coupling block 20b each of the support arm 78 is arranged and in the upper coupling block 20a each an actuating bolt 68 is provided. About the partial section, the centering pins 24 can be seen with the cleaning nozzles 26.
- hydraulic connections 46 are connected to hydraulic lines 82, which in turn are guided by the adapter 18 to the tool (not shown here), for example the sieve spoon 14.
- the wedge-shaped opening 80 of the support arm 78 is formed as a passage opening for the actuating bolt 68.
- the actuating pin 68 When retracted actuating pin 68 in the wedge-shaped opening 80, the actuating pin 68 down a clearance S, which prevent jamming of the actuating pin 68 in the wedge-shaped opening in any case, especially when wear occurs.
- the embodiment is shown with a double-acting actuating piston 68, ie an actuating piston 68, hydraulically from the change position, in which the tool change with the quick-change device 12 with the arranged on the excavator boom 10 quick coupler 16 and different with each A tool 14 is connected to the adapter 18, moves into the operating position, in which rather the quick coupler 16 is firmly connected to an adapter 18 and the hydraulic coupling 20 is coupled.
- the movement in the reverse direction is also hydraulically, with appropriate pressurization of the piston from the other side.
- a single-acting hydraulic piston may also be provided, in which the movement of the actuating piston 68 takes place by means of a corresponding hydraulic pressurization on one side of the actuating piston 68.
- a biased in the operating position spring which moves upon release of the force acting on the actuating piston 68 hydraulic force, this in the change position.
- the quick coupler 16 is pivotable about the pivot axis 34.
- the locking bolt 40 of the quick coupler moves to lock the quick-change device 12 perpendicular to the pivot axis 34 in a first direction.
- the coupling movement - second direction - of the hydraulic clutch 20 is substantially perpendicular to the first direction and in this case also perpendicular to the pivot axis 34.
- the movement of the bolt 60 from the change position to the operating position is linear in a third direction, which is perpendicular to the first and second direction is aligned.
- the third direction runs parallel to the pivot axis 34.
- the centering pins 24 have a conical receptacle 52 facing the quick coupler 16, which is associated with a conical front region of a clamping bolt 54 displaceably mounted in the lower coupling block 20b.
- the clamping bolt 54 is provided with a rear stop pin 54 a, which is associated with a plunger 56 within the locking bolt 40 of the quick coupler 16.
- the plunger 56 cooperates with a spring 58 such that when the plunger 56 is pressed in, the spring 58 is tensioned.
- the quick coupler 16 is placed on the adapter 18 with its claws and moved about the pivot axis 34, this centered as described above, so that the locking bolts 40 are aligned with the cone openings 38.
- the upper coupling block 20a rests on the lower coupling block 20b.
- the locking bolts 40 now move into the cone openings 38 and tighten the quick coupler 16 with the adapter 18 and the coupling blocks 20a, 20b with each other. It is done with the bracing a coupling of the coupling blocks 20a, 20b.
- the spring 58 is used as Studentshubkompensation the locking bolt 40 relative to the clamping bolt 54.
- the spring 58 is in this case compressed only when the Spannbol- zen 54 completely abuts with its conical end 54b in the conical receptacle 52 and the two coupling blocks / valve blocks 20a, 20b holds , As a result, the coupling blocks 20a, 20b secured very early against spreading forces.
- the locking bolt 40 is then still not in the cone openings 38, but continues to run until it rests. This leads to the mentioned overstroke and the spring 58 is stretched.
- the clamping bolt 54 with its conical end 54b lies flat against the conical seat 52 over a circumferential angle of up to a maximum of 180 °.
- the peripheral surfaces of the clamping bolt 54 which supplement the circumferential angle to 360 ° thereby form a bearing clearance S, which prevents jamming of the clamping bolt 54 with the co-operating bolt. nischer recording 52 in any case, especially in the event of wear.
- FIGS. 8 and 9 show a further embodiment of the invention.
- the upper coupling block 20a is provided with a laterally outwardly movable actuating pin 60 which is hydraulically actuated and moves against a spring, not shown here to the outside.
- the actuating bolt 60 is assigned a rocker 62, which is mounted tilted approximately in the middle in the upper coupling block 20 a.
- the rocker 62 has a projection 62a associated with the actuating bolt 60 and, on the other side, a claw 62b which engages around the lower coupling block 20b.
- the claw 62b is chamfered corresponding to the associated lower abutment surface of the lower coupling block 20b. Due to the mutually associated inclined surfaces jamming is prevented and by the pressure on the rocker 62 via the actuating pin 60 a frictional holding the coupling blocks 20 a,
- the rocker 62 is rotatably mounted about a pivot pin 64 and biased with a torsion spring not visible here so that when retracted actuating pin 60, the rocker 62, the lower coupling block 20b free.
- the pivot pin 64 is connected via a holding arm 66 with the upper coupling block 20 a and thus with the quick coupler 16. In a simple manner, this causes the coupling blocks 20a, 20b in operation, that is to say in the coupled state via the rocker 62, the pivot pin 64, the retaining arm 66, the claw 62b in cooperation with the bevelled abutment surface of the lower coupling block 20b and the voltage applied to the actuating pin 60 hydrostatic force. On both sides of the coupling blocks 20a, 20b, the construction just described is formed.
- the spreading forces occurring can be transmitted on each side via the rocker 62 between the upper and lower coupling block 20a, 20b.
- the applied hydrostatic force holds the respective actuating bolt 60 in the holding position.
- the respective spring associated with the actuating pin 60 in the upper coupling block 20a moves it inwards so that the corresponding rocker 62 pivots through the torsion spring connected to the pivot pin 64 and the lower coupling block 20b Opening the quick-change device 12 is released.
- Quick changer 16 is formed so that, for example, laterally on each side of the mechanical holding means for holding the coupling blocks 20a, 20b are provided.
- the mechanical holding means may also be arranged differently or all on the front side of the quick-change device.
- the embodiments shown in the drawing comprise a quick-change system according to the quick-change device disclosed in WO 2005/093172 A1.
- the invention is characterized by its simple possibility of counteracting the spreading forces by mechanical means.
- additional forces / pressures are necessary for actuating and holding the mechanical means, such as the bolt.
- the upper and lower coupling blocks 20a, 20b are released and the quick coupler 12 can be opened.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07725329T PL2018456T3 (en) | 2006-05-17 | 2007-05-16 | Quick-change device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006023420A DE102006023420B4 (en) | 2006-05-17 | 2006-05-17 | Quick change device |
PCT/EP2007/004414 WO2007131800A1 (en) | 2006-05-17 | 2007-05-16 | Quick-change device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2018456A1 true EP2018456A1 (en) | 2009-01-28 |
EP2018456B1 EP2018456B1 (en) | 2012-08-22 |
Family
ID=38330176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07725329A Not-in-force EP2018456B1 (en) | 2006-05-17 | 2007-05-16 | Quick-change device |
Country Status (9)
Country | Link |
---|---|
US (1) | US7735249B2 (en) |
EP (1) | EP2018456B1 (en) |
JP (1) | JP2009537711A (en) |
CA (1) | CA2652312C (en) |
DE (1) | DE102006023420B4 (en) |
DK (1) | DK2018456T3 (en) |
ES (1) | ES2389951T3 (en) |
PL (1) | PL2018456T3 (en) |
WO (1) | WO2007131800A1 (en) |
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USD630268S1 (en) * | 2009-11-25 | 2011-01-04 | John Cunningham | Remote controlled vehicle |
DE202010000155U1 (en) | 2010-02-09 | 2010-04-15 | Verotool Technik Gmbh | Attachment pocket for holding a quick coupler |
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DE102010016490B4 (en) * | 2010-04-16 | 2013-01-10 | Lehnhoff Hartstahl Gmbh & Co. Kg | Quick-change device for coupling a tool to a work machine |
IT1399566B1 (en) * | 2010-04-16 | 2013-04-19 | Andrina | FAST ATTACHMENT DEVICE FOR CONNECTING A TOOL TO A HANDLING EQUIPMENT, AS THE ARM OF AN EXCAVATOR |
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KR102338302B1 (en) | 2020-04-14 | 2021-12-14 | 대모 엔지니어링 주식회사 | Cover opening/closing apparatus of oil-hydraulic coupling block for quick change device |
KR102403764B1 (en) | 2020-04-14 | 2022-05-31 | 대모 엔지니어링 주식회사 | Connection structure of oil-quick for quick change |
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KR102226956B1 (en) * | 2020-09-18 | 2021-03-11 | 유제록 | Hydraulic quick-coupler automatic coupling device of heavy equipment or industrial machinery and workshop value |
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-
2006
- 2006-05-17 DE DE102006023420A patent/DE102006023420B4/en not_active Expired - Fee Related
-
2007
- 2007-05-16 PL PL07725329T patent/PL2018456T3/en unknown
- 2007-05-16 ES ES07725329T patent/ES2389951T3/en active Active
- 2007-05-16 US US12/299,613 patent/US7735249B2/en not_active Expired - Fee Related
- 2007-05-16 WO PCT/EP2007/004414 patent/WO2007131800A1/en active Application Filing
- 2007-05-16 DK DK07725329.2T patent/DK2018456T3/en active
- 2007-05-16 JP JP2009510357A patent/JP2009537711A/en active Pending
- 2007-05-16 CA CA2652312A patent/CA2652312C/en not_active Expired - Fee Related
- 2007-05-16 EP EP07725329A patent/EP2018456B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2007131800A1 * |
Also Published As
Publication number | Publication date |
---|---|
DK2018456T3 (en) | 2012-12-03 |
ES2389951T3 (en) | 2012-11-05 |
DE102006023420A1 (en) | 2007-11-22 |
WO2007131800A1 (en) | 2007-11-22 |
CA2652312C (en) | 2015-01-27 |
JP2009537711A (en) | 2009-10-29 |
EP2018456B1 (en) | 2012-08-22 |
DE102006023420B4 (en) | 2013-02-28 |
CA2652312A1 (en) | 2007-11-22 |
US7735249B2 (en) | 2010-06-15 |
PL2018456T3 (en) | 2013-01-31 |
US20090235561A1 (en) | 2009-09-24 |
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