EP3725953A1 - Système de connexion à raccord rapide pour machine de construction - Google Patents
Système de connexion à raccord rapide pour machine de construction Download PDFInfo
- Publication number
- EP3725953A1 EP3725953A1 EP18887627.0A EP18887627A EP3725953A1 EP 3725953 A1 EP3725953 A1 EP 3725953A1 EP 18887627 A EP18887627 A EP 18887627A EP 3725953 A1 EP3725953 A1 EP 3725953A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pin
- quick coupler
- connection
- coupled
- coupling
- 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 abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 97
- 238000005859 coupling reaction Methods 0.000 claims abstract description 97
- 230000008878 coupling Effects 0.000 claims abstract description 85
- 238000000926 separation method Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
-
- 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
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
Definitions
- the present invention relates to a quick coupler connection system for a construction machine and, more particularly, to a quick coupler connection system for a construction machine in which the coupling position of an actuating rod and a connecting block is automatically adjusted so that a quick coupler main body and a heavy equipment attachment device are quickly and safely combined, in which the quick coupler main body and the attachment device can be more easily combined, a stronger connection force can be achieved, and operation noise can be reduced by combining the quick coupler main body and the attachment device in a 3-point supporting type and a pin-hook coupling type.
- an excavator is construction equipment that is widely used for a road construction, waterworks and sewer construction, basic building construction, land development construction, construction for picking earth and sand, etc.
- Such equipment is selectively equipped with various attachments for different purposes, depending on the purpose of the work.
- An attachment is usually detachably coupled to the arm of an excavator to be replaced, depending on purposes, and recently, a quick coupler that is coupled to the arm of an excavator and enables an attachment to be easily connected has been developed and widely used.
- the quick coupler is firmly coupled to the arm and the cylinder-side push link of an excavator by two pin coupling structures on a quick change body and can fasten an attachment using a fixed hook and a moving hook.
- a driver of an excavator couples or separates the quick coupler to or from a bucket or a breaker mounted at the end of an arm by operating a lever, so it is possible to easily handle and use attachments.
- the quick coupler has a safety device, for example, a safety pin to prepare for a safety accident as a measure for preventing the danger of separation of an attachment due to breakdown of a hydraulic cylinder of the quick coupler or damage to a hydraulic hose during work.
- a safety device for example, a safety pin to prepare for a safety accident as a measure for preventing the danger of separation of an attachment due to breakdown of a hydraulic cylinder of the quick coupler or damage to a hydraulic hose during work.
- the attachment coupler includes: a coupler body coupled to an end of an arm of a heavy construction vehicle; a fixed hook fixed to the coupler body to be fastened to one of coupling pins facing an attachment; a moving hook rotatably coupled to the coupler body by a hinge shaft formed on the coupler body to be fastened to the others of the pin fastened to the fixed hook of the coupling pins of the attachment; a hydraulic cylinder rotating the moving hook by stretching/contracting with an end coupled to the moving hook by a first fixing pin and the other end coupled to the coupler body by a second fixing pin; a locking hook rotatably coupled to the coupler body by the second fixing pin and having an end curved in a hook shape; and a power transmission member having an end supported such that the position is changed by rotation of the moving hook and the other end coupled
- Korean Patent No. 10-1425075 titled "Attachment quick change construction for heavy equipment" (registered on July 24, 2014) by the same applicant(s), which includes: a quick change body firmly mounted at an end of the arm of the heavy equipment; a jaw body having a fixed jaw detachably coupled to a side of the quick change body by a coupler and a moving jaw pivot-coupled to the fixed jaw and being rotatable by the operation of a cylinder, in which the coupler has an opening being laterally open at a side of the fixed jaw and having an assembly hook and a fixed hook facing each other up and down, an assembly pin member pin-fixed to a side of the quick change body and pivot-coupled to the assembly hook, and a fixed fin member being elevated by an elevator disposed at a side of the quick change body, and being fitted to the fixed hook when moving down.
- a first connection pin of the quick coupler body is hooked to the assembly hook formed at the upper portion of the fixed jaw and the cylinder connection pin at the lower portion of the quick coupler body is hooked to the fixing hook to couple the fixed jaw to the upper connection portion of the quick coupler body, but the lower portion of the fixed jaw and the lower portion of the quick coupler body are coupled in a surface contact type. Therefore, the quick coupler body and the attachment body may not be firmly connected and shock noise may be generated by contact of the lower connection portion in the process of assembly.
- connection block of the moving jaw and the moving rod of the quick coupler body at the pin-coupling position and then pin-couple them using a coupling pin, but there is a possibility of a safety accident of the worker in the process of connecting a heavy attachment to the quick coupler body by manually lifting the moving jaw of the attachment to the moving rod at the upper portion of the quick coupler body and then pin-coupling the connection block to the moving rod. Further, it is difficult to align the coupling positions of the connection block and the moving road, so the work takes long time.
- the present invention has been made in an effort to solve the problems and an objective of the present invention is to provide a quick coupler connection system for a construction machine in which the coupling position of an actuating rod and a connecting block is automatically adjusted so that a quick coupler body and a heavy equipment attachment device are quickly and safely combined, in which the quick coupler body and the attachment device can be more easily combined, a stronger connection force can be achieved, and operation noise can be reduced by combining the quick coupler body and the attachment device in a 3-point supporting type and a pin-hook coupling type.
- Another objective of the present invention is to provide a coupler connection system for a construction machine that enables an actuating cylinder to be easily fixed to a quick coupler body by a fixing pin before a quick coupler main body and an attachment are coupled, and enables a fixing pin to be easily kept after the quick coupler main body and the attachment are coupled.
- a quick coupler connection system for a construction machine includes: a quick coupler main body that includes left and right quick coupler bodies facing each other at left and right sides and connected to each other by a connection plate on rears thereof, an actuating cylinder rotatably disposed inside the left and right quick coupler bodies and having an actuating rod disposed on a top thereof and coupled to connection blocks of a moving jaw of an attachment by a coupling pin, and a first connection pin and a second connection pin connecting the left and right quick coupler bodies and a cylinder connection pin rotatably supporting the actuating cylinder; the attachment detachably coupled to the quick coupler main body and having the moving jaw being rotatable with respect to a fixed jaw; and guides disposed on inner surfaces of the connection blocks and guiding pin assembly positions of the connection blocks and the moving rod when the moving jaw is rotated.
- the quick coupler connection system may further include: a first assembly hook formed such that the first connection pin of the quick coupler main body is coupled to an upper portion of the fixed jaw; a fixing hook formed such that the cylinder connection pin is coupled inside a lower portion of the fixed jaw; and a second assembly hook formed such that the second connection pin of the quick coupler main body is coupled to the lower portion of the fixed jaw.
- the guides may protrude from inner sides of the connection blocks facing each other, may be rounded to have a radius of curvature corresponding to a curvature of the rounded upper portion of the moving rod, and may have an angular range of 90 ⁇ 180°.
- a lower portion of the actuating cylinder operating the moving jaw may be shaft-coupled to the quick coupler main body, a supporting assembly that supports the actuating cylinder to prevent rotation of the actuating cylinder before the actuating rod of the actuating cylinder is coupled to the connection blocks of the moving jaw may be provided, the supporting assembly may have a fixed block fixed on an outer surface of a cylinder tube of the actuating cylinder on a side, a supporting block detachably coupled to the fixed block on a side by a bolt and having a coupling protrusion having a fixing hole, and supporting holes formed through the left and right quick coupler bodies such that a supporting pin disposed through the fixing hole is pin-coupled therein.
- the quick coupler connection system may further include keeping holes formed through the left and right quick coupler bodies to keep the supporting pin when the actuating rod and the moving jaw are combined.
- the coupling pin may have a flat chamfered portion on a side of an outer surface and a stopping step continuing from an end of the chamfered portion on another side of the outer surface of the coupling pin to prevent separation out of the connection holes of the connection blocks, and a chamfered surface corresponding to the chamfered portion and locked to the stopping step is formed on an inner surface of the connection hole formed at a left connection block.
- the quick coupler connection system may further include: fitting holes formed at a first end portion and a second end portion of the coupling pin; a fastening block integrally coupled to a right connection block, having a through-hole formed through a center for inserting and pulling out the coupling pin, and having a fastening hole in which a fastening bolt that is fitted in the fitting hole is inserted ; and a driven block coupled to the first end of the coupling fin to move with insertion and pulling-out of the coupling pin and having a fastening hole in which a fastening bolt that is fitted in the fitting hole is inserted.
- the guides on the connection blocks of the moving jaw come in contact with the top of the moving jaw and the assembly position of the coupling pin is naturally determined. Accordingly, the assembly position of the coupling pin is determined not manually, but naturally, so it is possible to prevent a safety accident of a worker and easily pin-couple the coupling pin.
- first and second connection pins and the cylinder pin are disposed at a side of the quick coupler main body and the first and second assembly hooks and the fixing hook are disposed at the other portion of the fixed jaw facing the side of the quick coupler main body to correspond to the pins, the fixed jaw and the quick coupler main body are coupled in a 3-point supporting type, so they an be simply and firmly assembled.
- the actuating cylinder is supported by the supporting pin to be able to be fixed to the left and right coupler bodies before pin-coupling of the coupling pin, but the supporting pin can be kept in the keeping hole after pin-coupling of the coupling pin, so it is possible to easily manage and keep the supporting pin.
- the coupling pin Since the chamfered portion and the stopping step are formed on the outer surface of the coupling pin, it is possible to prevent separation of the coupling pin before coupling the actuating rod and the connection blocks. Further, since the fastening bolts are inserted in the fitting hole of the coupling pin through the fastening holes of the fastening block and the driven block, the coupling pin can be easily fixed.
- a quick coupler connection system for a construction machine includes: a quick coupler main body 100 that includes left and right quick coupler bodies 110 and 120 facing each other at the left and right sides and connected to each other by a connection plate 130 on the rears thereof, an actuating cylinder 150 rotatably disposed inside the left and right quick coupler bodies 110 and 120 and having an actuating rod 154 disposed on the top thereof and coupled to connection blocks 225 of a moving jaw 220 of an attachment 200 by a coupling pin 140, and a first connection pin 131 and a second connection pin 132 connecting the left and right quick coupler bodies 110 and 120 and a cylinder connection pin 133 rotatably supporting the actuating cylinder 150; the attachment 200 detachably coupled to the quick coupler main body 100 and having the moving jaw 220 being rotatable with respect to a fixed jaw 210; and guides 250 disposed on the inner surfaces of the connection blocks 225 and guiding pin assembly positions of the connection blocks
- the quick coupler main body 100 includes the left and right quick coupler bodies 110 and 120 spaced apart left and right from each other and connected to each other by the connection plate 130 on the rears thereof.
- the first and second connection pins 131 and 132 are pin-coupled to portions of the left and right quick coupler bodies 110 and 120.
- the attachment 200 includes the fixed jaw 210 having first and second assembly hooks 212 and 214 to fit a second side thereof to the first and second connection pins 131 and 132, and the moving jaw 220 rotatably hinged to the fixed jaw 210 to be rotated by the actuating cylinder 150 supported in the quick couple main body 100.
- the fixed jaw 210 further has a first assembly hook 212 formed such that the first connection pin 131 of the quick coupler main body 100 is coupled to the upper portion of a first side, a fixing hook 213 formed such that the cylinder connection pin 133 is coupled inside the lower portion of the first side of the fixed jaw 210, and a second assembly hook 214 formed such that the second connection pin 132 of the quick coupler main body 100 is coupled to a lower portion of the first side of the fixed jaw 210.
- a first assembly hook 212 formed such that the first connection pin 131 of the quick coupler main body 100 is coupled to the upper portion of a first side
- a fixing hook 213 formed such that the cylinder connection pin 133 is coupled inside the lower portion of the first side of the fixed jaw 210
- a second assembly hook 214 formed such that the second connection pin 132 of the quick coupler main body 100 is coupled to a lower portion of the first side of the fixed jaw 210.
- the first assembly hook 212 is formed in a hook shape with the lower portion open downward
- the fixing hook 213 is formed in a hook shape with the upper portion open upward
- the second assembly hook 214 has a structure being laterally open.
- the first connection pin 131 is pin-coupled to the first assembly hook 212 of the fixed jaw 210
- the second connection pin 132 is hook-coupled to the second assembly hook 214
- the cylinder connection pin 133 is hook-coupled to the fixing hook 213, so the fixed jaw 210 is firmly coupled to the quick coupler main body 100 while being stably supported at three points at the upper and lower portions of the quick coupler main body 100.
- the guides 250 protrude from the inner sides of the connection blocks 225 facing each other and are rounded to have a radius of curvature corresponding to the curvature of the rounded upper portion of the moving rod 154.
- the guides 250 may have an angular range ⁇ of 90 ⁇ 180°, when the angular range of the guides 250 may be less than 90°, the contact area with the actuating rod 154 is small, so it may be unstable, and when the angular range of the guides 250 exceeds 180°, rotation of the moving jaw 220 may be interfered with by the actuating rod 154.
- the actuating rod 154 has a curvature at the rounded upper portion and has a coupling hole through which the coupling pin 140 is disposed.
- connection block 225 has connection holes 226 through which the coupling pin 140 is disposed.
- the coupling pin 140 has a flat chamfered portion on a side of the outer surface and a stopping step 143 continuing from an end of the chamfered portion 142 to prevent separation out of the connection holes 226 of the connection blocks 250, and a chamfered surface 226a corresponding to the chamfered portion 142 and locked to the stopping step 143 is formed on the inner surface of the connection hole 226 formed at the left connection block 250.
- the present invention further includes: fitting holes 144 formed at a first end portion and a second end portion of the coupling pin 140; a fastening block 270 integrally coupled to the right connection block 250, having a through-hole formed through the center for inserting and pulling out the coupling pin 140, and having a fastening hole 275 in which a fastening bolt 290 that is fitted in the fitting hole 144 is inserted ; and a driven block 280 coupled to the first end of the coupling fin 140 to move with insertion and pulling-out of the coupling pin 140 and having a fastening hole 275 in which a fastening bolt 290 that is fitted in the fitting hole 144 is inserted.
- the coupling pin 140 has been pulled out of the connection hole 226 of the right connection block 250 and is positioned at the left side of the connection blocks 250 with an end fitted in the connection hole 226 of the left connection block 250 and the edge of the chamfered surface 226a locked to the stopping step 143, whereby separation of the coupling pin 140 and the right connection block 250 is prevented.
- the fastening bolts 290 when the fastening bolts 290 is inserted into the fastening holes 275 of the fastening block 270 and the driven block 280, the fastening bolts 290 are fitted in the fitting holes 144 formed at both end portions of the coupling pin, thereby being able to fix the coupling pin 140 such that lateral movement of the coupling pin 140 is prevented.
- the present invention further includes a supporting assembly 300 that supports the actuating cylinder 150 to prevent rotation of the actuating cylinder 150 before the actuating rod 154 of the actuating cylinder 150 is coupled to the connection blocks 250 of the moving jaw 220.
- the supporting assembly 300 has a fixed block 310 fixed on the outer surface of a cylinder tube 152 of the actuating cylinder 150 on a side, a supporting block 320 detachably coupled to the fixed block 310 on a side by a bolt and having a coupling protrusion 325 having a fixing hole 325a, and supporting holes 330 formed through the left and right quick coupler bodies 110 and 120 such that a supporting pin 350 disposed through the fixing hole 325a is pin-coupled therein.
- the supporting assembly 300 further has keeping holes 340 formed through the left and right quick coupler bodies 110 and 120 to keep the supporting pin 350 when the actuating rod 154 and the moving jaw 220 are combined.
- the keeping holes 340 are formed above the supporting holes 330 not to be interfered with by the supporting pin 350 when the actuating cylinder 150 is rotated.
- the quick coupler main body 100 is diagonally positioned such that the first connection pin 131 is hook-coupled to the first assembly hook 212, as shown in FIG. 8a , the first connection pin 131 is moved into the lower open side of the first assembly hook 212 and hang in the first assembly hook 212, as shown in FIG. 8b , and the second connection pin 132 is moved into the open side of the second assembly hook 214 and fitted in the second assembly hook 214, and in this process, the cylinder connection pin 133 is hook-coupled to the fixing hook 213.
- the fixed jaw 210 and a side of the quick coupler main body 100 are hook-coupled in a 3-ponit supporting type.
- the moving jaw 220 coupled to the fixed jaw 210 through the hinge shaft 230 rotates and opens clockwise about the hinge shaft 230.
- the coupling pin 140 is fixed by inserting the fastening bolts 290 into the fastening holes 275 of the fastening block 270 and the driven block 280 and the fitting holes 144 of the coupling pin 140, the process of connecting the attachment 200 to the quick coupler main body 100 is finished.
- the cylinder tube 152 of the actuating cylinder 150 is fixed to the left and right quick coupler bodies 110 and 120 by pin-coupling the supporting pin 350 of the supporting assembly 300 to the fixing hole 325a of the supporting block 320 and the supporting holes 330 formed at the left and right quick coupler bodies 110 and 120, whereby there is the advantage that it is possible to prevent movement and rotation of the actuating cylinder 150 before the actuating cylinder 150 is pin-coupled to the moving jaw 220 by the coupling pin 140.
- the supporting pin 350 of the supporting assembly 300 can be separated out of the fixing hole 325a and the supporting holes 330 and fitted into the keeping holes 340 to be stowed, so it is possible to prevent loss of the supporting pin 350.
- the moving jaw 220 is rotated clockwise by excavator equipment in the process of pin-coupling the moving jaw 220 of the attachment 200 and the actuating rod 154 of the actuating cylinder 150 with the coupling pin 140, the guides 250 on the connection blocks 225 of the moving jaw 220 come in contact with the top of the moving jaw 220 and the assembly position of the coupling pin 140 is naturally determined. Accordingly, the assembly position of the coupling pin 140 is determined not manually, but naturally, so it is possible to prevent a safety accident of a worker and easily pin-couple the coupling pin 140.
- first and second connection pins 131 and 132 and the cylinder pin 133 are disposed at a side of the quick coupler main body 100 and the first and second assembly hooks 212 and 214 and the fixing hook 213 are disposed at the other portion of the fixed jaw 213 facing the side of the quick coupler main body 100 to correspond to the pins, the fixed jaw 210 and the quick coupler main body 100 are coupled in a 3-point supporting type, so they can be simply and firmly assembled.
- the actuating cylinder 150 is supported by the supporting pin 350 to be able to be fixed to the left and right coupler bodies 110 and 120 before pin-coupling of the coupling pin 140, but the supporting pin 350 can be kept in the keeping hole 340 after pin-coupling of the coupling pin 140, so it is possible to easily manage and keep the supporting pin 350.
- the coupling pin 140 since the chamfered portion 142 and the stopping step 143 are formed on the outer surface of the coupling pin 140, it is possible to prevent separation of the coupling pin 140 before coupling the actuating rod 154 and the connection blocks 250. Further, since the fastening bolts 290 are inserted in the fitting hole 144 of the coupling pin through the fastening holes 275 of the fastening block 270 and the driven block 280, the coupling pin can be easily fixed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170173065A KR101870713B1 (ko) | 2017-12-15 | 2017-12-15 | 건설기계용 퀵 커플러 연결구조체 |
PCT/KR2018/010662 WO2019117431A1 (fr) | 2017-12-15 | 2018-09-12 | Système de connexion à raccord rapide pour machine de construction |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3725953A1 true EP3725953A1 (fr) | 2020-10-21 |
EP3725953A4 EP3725953A4 (fr) | 2021-08-18 |
EP3725953B1 EP3725953B1 (fr) | 2023-06-07 |
Family
ID=63250366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18887627.0A Active EP3725953B1 (fr) | 2017-12-15 | 2018-09-12 | Système de connexion à raccord rapide pour machine de construction |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3725953B1 (fr) |
KR (1) | KR101870713B1 (fr) |
IL (1) | IL274644B2 (fr) |
WO (1) | WO2019117431A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102226954B1 (ko) * | 2020-09-18 | 2021-03-11 | 유제록 | 중장비 또는 산업용 기계와 작업장치 자동 연결장치의 자동 유압 연결장치 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3256120B2 (ja) * | 1996-01-29 | 2002-02-12 | 株式会社坂戸工作所 | 破砕機 |
JP4247222B2 (ja) * | 2005-09-20 | 2009-04-02 | ヤンマー株式会社 | トラクターローダーバックホーの掘削装置固定構造 |
US8662784B2 (en) * | 2006-02-01 | 2014-03-04 | Deere & Company | Pad-eye pin and retainer |
KR20080098836A (ko) * | 2007-05-07 | 2008-11-12 | 주식회사 에버다임 | 중장비용 다용도 어태치먼트 결합장치 |
JP4928348B2 (ja) * | 2007-05-14 | 2012-05-09 | 日本車輌製造株式会社 | 連結軸の固定構造 |
CA2590464A1 (fr) * | 2007-05-30 | 2008-11-30 | Brandt Industries Ltd. | Mecanisme a raccord rapide pour fixation d'outil |
KR101043036B1 (ko) | 2009-05-19 | 2011-06-21 | 주식회사 에버다임 | 어태치먼트의 완전 장착을 보장하는 중장비용 어태치먼트 커플러 |
KR101254193B1 (ko) * | 2011-05-02 | 2013-04-18 | 대모 엔지니어링 주식회사 | 중장비 작업기의 퀵체인지 구조 |
KR101378570B1 (ko) * | 2012-04-26 | 2014-03-28 | 대모 엔지니어링 주식회사 | 중장비용 작업기 퀵 체인저 |
KR101425075B1 (ko) | 2013-07-10 | 2014-08-04 | 대모 엔지니어링 주식회사 | 퀵 체인지 결합방식을 갖는 중장비 어태치먼트 구조체 |
KR101806958B1 (ko) * | 2017-09-25 | 2017-12-08 | 성보공업주식회사 | 굴삭기의 버킷용 투스 |
-
2017
- 2017-12-15 KR KR1020170173065A patent/KR101870713B1/ko active IP Right Grant
-
2018
- 2018-09-12 WO PCT/KR2018/010662 patent/WO2019117431A1/fr unknown
- 2018-09-12 IL IL274644A patent/IL274644B2/en unknown
- 2018-09-12 EP EP18887627.0A patent/EP3725953B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
IL274644A (en) | 2020-06-30 |
IL274644B2 (en) | 2024-03-01 |
WO2019117431A1 (fr) | 2019-06-20 |
EP3725953A4 (fr) | 2021-08-18 |
KR101870713B1 (ko) | 2018-08-03 |
IL274644B1 (en) | 2023-11-01 |
EP3725953B1 (fr) | 2023-06-07 |
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