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WO1993001366A1 - Mecanisme destine a fixer un outil sur un engin de construction - Google Patents

Mecanisme destine a fixer un outil sur un engin de construction Download PDF

Info

Publication number
WO1993001366A1
WO1993001366A1 PCT/US1992/005631 US9205631W WO9301366A1 WO 1993001366 A1 WO1993001366 A1 WO 1993001366A1 US 9205631 W US9205631 W US 9205631W WO 9301366 A1 WO9301366 A1 WO 9301366A1
Authority
WO
WIPO (PCT)
Prior art keywords
hooks
attachment
hook
base
pins
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.)
Ceased
Application number
PCT/US1992/005631
Other languages
English (en)
Inventor
Kishi Mistsuhiro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Americ Corp
Original Assignee
Americ Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Americ Corp filed Critical Americ Corp
Publication of WO1993001366A1 publication Critical patent/WO1993001366A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E02F3/3618—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

Definitions

  • the present invention generally relates to a mechanism for quickly and securely connecting an attachment to a construction machine.
  • Attachments for construction machines are typically interchangeable. These machines are used extensively in civil engineering and construction work.
  • An attachment is typically secured at a head of a machine arm. The arm and attachment are controlled by hydraulic power to dig or make grooves in the ground.
  • Construction machines can be used for many purposes by changing attachments. For example, by securing different width buckets to the machine, it can be used to dig various types of holes in the ground. Similarly, a grip can be attached for loading or unloading work, or a breaker can be attached for destroying a building.
  • changing attachments has historically taken significant time and manpower. Pins connecting the attachment to the machine arm must be pulled, and the attachment removed by a ground crew. Then, another heavy attachment must be aligned with the head of the arm and secured in place by reinserting the pins. This procedure takes several workers nearly one half hour to complete and is a very inefficient use of the site work force.
  • Hooks have also historically been used to secure attachments to the head of the machine arm.
  • the problem with this type of securement is that only one pair of hooks is provided, and this type of securement is too weak to hold and firmly secure the attachment to the head of the machine arm.
  • the present invention is provided to solve these and other problems.
  • the present invention provides a mechanism for firmly connecting an attachment to a construction machine.
  • the mechanism comprises two pair of opposite facing hooks for engaging the pins of the attachment.
  • two stationary, downwardly facing hooks project from a base
  • two movable, upwardly facing hooks project from a joining member.
  • a hydraulic cylinder moves the hooks together to catch and surround the attachment pins.
  • one stationary and one movable hook surround each pin.
  • one stationary and one movable hook surround the central attachment pin.
  • a second stationary and a second movable hook engage the inside surfaces of the outer attachment pins.
  • One advantage of the present invention is that a machine operator can single handedly change the attachment on the head of the machine arm. This greatly reduces the number of workers needed for the operation and increases the overall efficiency of the work force.
  • Another advantage of the present invention is that it is unnecessary to remove and install the pins that connect the attachment and the machine arm. This reduces the time needed to change attachments and provides for more efficient use of the construction machine.
  • a further advantage of the present invention is that workers need not lift the heavy attachments or come near them when the machine is moving. No pins need be removed and reinserted, and workers do not have to pick up and align the heavy attachments with the head of the machine arm. This provides a safer working environment by reducing the risk of injury to workers.
  • a still further advantage of the present invention is that it provides a mechanism with two pair of hooks which greatly increases the holding power of the mechanism.
  • Figure 1 is a diagonal view of an excavator equipped with the invention.
  • Figure 2 is a perspective view of the invention mounted on the head of a machine arm.
  • Figure 3 is a sectional view of the mechanism and an attachment base.
  • Figure 4 is a sectional view showing the mechanisms in the open and closed positions.
  • Figure 5 is a side view showing the mechanism prior to being connected to an attachment.
  • Figure 6 is a side view showing a completed connection with the machine arm raised.
  • Figure 7 is a perspective view of a second embodiment of the mechanism installed at the head of a machine arm.
  • Figure 8 is a sectional view of a second embodiment of the mechanism and an attachment base.
  • Figure 9 is a sectional view of a second embodiment of the mechanism showing it in the open and closed positions.
  • the present invention is a mechanism for remotely connecting an attachment to an excavation or construction machine.
  • a typical construction machine has a main body 1 consisting of an engine and two crawlers 2 by which the main body is able to move forward and reverse, and left and right.
  • a boom 3 is pivotally attached to the front of the main body 1.
  • Hydraulic boom lift cylinders 4 are typically provided for raising and lowering boom 3.
  • An arm 5 is connected to boom 3 and an arm cylinder 6 is provided for raising and lowering the arm.
  • a bucket cylinder 7 is located near the middle of arm 5.
  • a cylinder rod 8 is located at one end of bucket cylinder 7.
  • a first pair of links 9 are joined on both sides of rod 8 and connected near the head of arm 5.
  • a second pair of links 10 are connected on both sides of an end of cylinder rod 8.
  • Links 9 and 10 are pivotally connected at one end of cylinder rod 8. Lower ends of links 9 are preferably pivotally connected to the head of boom 5 with a pin 24.
  • Mechanism 11 is mounted between a head of links 10 and the head of arm 5. Arm 5, links 9 and 10, and mechanism 11 form a link mechanism which looks somewhat like a warped square.
  • Mechanism 11 generally comprises two pair of opposite facing hooks.
  • the mechanism is intended for use with an attachment having a pair of attachment pins.
  • Attachments such as the bucket 17 shown in Figure ⁇ , are typically provided with an attachment base 18.
  • a pair of parallel attachment pins 19 and 20 can be installed horizontally on an upper and a lower side of bucket base 18. Pins 19 and 20 are preferably installed in the existing attachment holes.
  • a pair of upper stationary hooks 12 project from upper right and left sides of mechanism 11.
  • a pair of lower stationary hooks 14 project from lower right and left sides of mechanism 11.
  • Upper movable hook 13 is preferably located between upper stationary hooks 12 and lower stationary hooks 14.
  • Lower movable hook 15 is preferably located below lower stationary hooks 14.
  • Stationary hooks 12 and 14 are preferably downwardly facing.
  • Movable hooks 13 and 15 are preferably upwardly facing.
  • Mechanism 11 is also provided with a means for moving movable hooks 13 and 15, such as a hydraulic cylinder 16. Hydraulic cylinder 16 moves hooks 13 and 15 so that attachment pins 19 and 20 are captured and surrounded by hooks 12-15.
  • Mechanism 11 preferably has a base 25 constructed of a "U" shaped piece of steel.
  • Mechanism base 25 cover links 10 and the head of machine arm 5.
  • a top side of base 25 is pivotally connected to links 10 by pin 26.
  • a bottom side of base 25 is pivotally connected to the head of arm 5 by pin 27.
  • An opening 28 is located on a front flat surface of mechanism base 25. Opening 28 is preferably rectangular in shape.
  • Upper stationary hooks 12 are preferably "L” shaped and project from right and left sides of an upper end of opening 28.
  • Lower stationary hooks 14 are also preferably "L* 1 shaped and project from a bottom side of base 25. Hooks 12 and 14 preferably form downwardly facing concave surfaces 29 and 33 respectively.
  • a joining member 30 is preferably used to connect movable hooks 13 and 15. Joining member 30 is preferably rectangular in shape and adjacent to nearly the same length as base 25. Joining member 30 is shown to move linearly with respect to base 25, although it should be understood that the joining member could rotate or move in some other manner.
  • Movable hooks 13 and 15 project from joining member 30, and preferably combine to form one integral piece.
  • Upper movable hook 13 projects through opening 28.
  • Hooks 13 and 15 form upwardly facing concave surfaces 31 and 32 respectively.
  • Concave surfaces 31 and 32 face opposite concave surfaces 29 and 33.
  • a support plate 34 is preferably attached to lower stationary hooks 14.
  • One end of hydraulic cylinder 16 is mounted to plated 34.
  • Cylinder 16 has a cylinder rod 35 that is preferably connected to upper movable hook 13.
  • the distance between a deepest point of concave surfaces 29 and 33 of stationary hooks 12 and 14 is the same as the distance between bucket pins 19 and 20.
  • the distance between a deepest point of concave surfaces 31 and 32 of movable hooks 13 and 15 is the same as the distance between pins 19 and 20.
  • Figure 5 shows connective mechanism 11 in its open position, prior to attachment to bucket 17.
  • cylinder rod 35 is contracted by hydraulic cylinder 16 so that movable hooks 13 and 15 are lowered.
  • the spaces formed between the two pair of hooks, (12 and 13) and (14 and 15) respectively, are capable of receiving pins 19 and 20.
  • mechanism 11 is moved toward bucket 17. This can be done by controlling hydraulic cylinders 4 and 6 which move boom 3 and arm 5 respectively.
  • Pin 19 goes between upper stationary hook 12 and upper moveable hook 13, and moves into a preferably elliptical space formed by these hooks.
  • Pin 20 goes between lower stationary hook 14 and lower movable hook 15, and moves into another preferably elliptical space formed by these hooks.
  • a top surface of pins 19 and 20 preferably settle into and contact concave surfaces 29 and 33 respectively, as shown in Figure 4.
  • Figures 7, 8 and 9 show a second embodiment of the invention.
  • mechanism 11 is provided with hooks 43, 45, 52 and 54 for engaging an attachment having three parallel pins 57, 58 and 59. Attachment pins 57, 58, and 59 are again preferably parallel and horizontal.
  • mechanism 11 has a base 41 preferably constructed of a • • U" shaped steel plate.
  • Mechanism base 41 is joined to the head of second links 10 and the head of arm 5 as shown in Figure 7.
  • Base 41 has a flat front surface and two sides that cover the heads of links 10 and arm 5.
  • the top side of base 41 and the head of links 10 are pivotally joined by a pin 26.
  • a bottom of base 41 and the head of arm 5 are also pivotally joined by a pin 27.
  • the flat surface of mechanism base 41 is provided with an opening 42 that is preferably rectangular in shape. Rectangular opening 42 preferably spans from a top to a middle of base 41.
  • a pair of upper stationary hooks 43 are preferably located at the middle of base 41, one hook on each side of opening 42.
  • a pair of lower stationary hooks 45 are preferably located on both sides of a bottom of base 41. Hooks 43 and 45 preferably form downward facing concave surfaces 44 and 46 respectively.
  • an "L" shaped bracket 47 is located inside the bottom of mechanism base 41. Hydraulic cylinder 48 is positioned on bracket 47 and moves a cylinder rod 49 in an upward direction.
  • Another bracket 50 is located at a top of cylinder rod 49 and is connected to a joining member 51.
  • An upper movable hook 52 is preferably attached to a top of interlock 51 and projects in a right angle through hole 42.
  • a lower movable hook 54 is preferably attached to a bottom of joining member 51 and also projects in a right angle through hole 42. Hooks 52 and 54 preferably form upwardly facing concave surfaces 53 and 55 respectively.
  • Upper movable hook 52 is located above upper stationary hook 43.
  • Lower movable hook 54 is located between upper stationary hook 43 and lower stationary hook 45.
  • hooks 43, 45, 52 and 54 are positioned relative to attachment pins 57-59. Hooks 43, 45, 52 and 54 form two sets of opposite facing hooks. A first set is formed by hooks 43 and 54. A second set is formed by hooks 45 and 52. The distance between the centers of attachment pins 58 and 59 should be the same as the distance between the deepest parts of stationary hooks 43 and 45. The distance between the center of pins 57 and 58 should be the same as the distance between the deepest parts of movable hook 52 and 54.
  • cylinder rod 49 is retracted by hydraulic cylinder 48, upper and lower movable hooks 52 and 54 simultaneously move downward as shown in Figure 8.
  • Mechanism 11 can now be moved to engage attachment 17 as in Figure 9.
  • Upper movable hook 52 and upper stationary hook 43 are inserted into a space between pins 57 and 58.
  • Lower movable hook 54 and lower stationary hook 45 are inserted into a space between pins 58 and 59.
  • Bucket pin 58 is inserted into a preferably elliptical space formed by upper stationary hook 43 and lower movable hook 54.
  • mechanism base 41 is preferably moved so that stationary hooks 43 and 45 touch the top of pins 58 and 59 respectively, as shown in Figure 9. While in this position, cylinder rod 49 is extended by applying hydraulic pressure to the cylinder 48. Hooks 52 and 54 move upwardly as shown by arrow B. Upper movable hook 52 touches a lower side of pin 57 and lower movable hook 54 touches a lower side of pin 58.
  • Mechanism 11 is now in its closed position. Attachment pin 58 is captured and surrounded by hooks 43 and 54, and pins 57 and 59 are engaged and partially surrounded by hooks 52 and 45. In this way, pins 57-59 are firmly held by hooks 43, 45, 52 and 54.
  • FIGS 7, 8 and 9 show the bottom of attachment pin 57 being engaged by upper movable hook 52 and the top of attachment pin 59 being engaged by lower stationary hook 45, it should be understood that hooks 43, 45, 52 and 54 could be positioned in other ways.
  • upper movable hook 52 could be adapted to engage the top of attachment pin 57
  • lower stationary hook 45 could be adapted to engage the bottom of pin 59.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)

Abstract

Mécanisme (11) destiné à fixer solidement un outil sur un engin de construction. Généralement, ledit mécanisme (11) comprend deux paires de crochets se faisant face, destinés à s'emboîter sur les chevilles d'un outil. De préférence, deux crochets fixes orientés vers le bas (12, 14) font saillie à partir d'une base (25) et deux crochets mobiles orientés vers le haut (13, 15) font saillie à partir d'un élément de liaison (30). Un cylindre hydraulique (16) déplace les crochets ensemble de manière à ce qu'ils attrapent les chevilles de l'outil et les entourent. Lorsqu'un outil possède une paire de chevilles, un crochet fixe et un crochet mobile entourent chaque cheville. Lorsque l'outil possède trois chevilles, un crochet fixe et un crochet mobile entourent la cheville centrale de l'outil. Les seconds crochets fixes et mobiles s'emboîtent sur les chevilles extérieures de l'outil.
PCT/US1992/005631 1991-07-04 1992-07-06 Mecanisme destine a fixer un outil sur un engin de construction Ceased WO1993001366A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3/190547 1991-07-04
JP19054791A JP2505381B2 (ja) 1991-07-04 1991-07-04 建設機械の付属品着脱機構

Publications (1)

Publication Number Publication Date
WO1993001366A1 true WO1993001366A1 (fr) 1993-01-21

Family

ID=16259898

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/005631 Ceased WO1993001366A1 (fr) 1991-07-04 1992-07-06 Mecanisme destine a fixer un outil sur un engin de construction

Country Status (3)

Country Link
JP (1) JP2505381B2 (fr)
AU (1) AU2318092A (fr)
WO (1) WO1993001366A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002031271A3 (fr) * 2000-10-10 2002-09-19 Josef Martin Gmbh & Co Kg Dispositif de fixation interchangeable d'une piece rapportee telle qu'une pelle, a une fleche de pelle ou a un vehicule
EP1477615A1 (fr) * 2003-05-13 2004-11-17 Ateliers de Construction du Beaujolais Dispositif de couplage d'un outil à l'extrémité de la flèche d'un engin, tel qu'une pelle hydraulique
WO2012156673A1 (fr) * 2011-05-19 2012-11-22 Shadowfiction Limited Attelage rapide automatique destiné à une excavatrice
WO2019206425A1 (fr) * 2018-04-27 2019-10-31 Volvo Construction Equipment Ab Ensemble flèche pour engins de chantier
CN113454292A (zh) * 2019-02-15 2021-09-28 住友重机械工业株式会社 挖土机
US12071741B2 (en) 2019-02-04 2024-08-27 Sumitomo Heavy Industries, Ltd. Shovel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3264638B2 (ja) 1997-07-11 2002-03-11 マルマテクニカ株式会社 クイックカプラ

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243356A (en) * 1978-03-30 1981-01-06 Caterpillar Mitsubishi Ltd. Quick coupler
US4297074A (en) * 1980-01-07 1981-10-27 Ballinger Paul V Demountable interconnection
US4355476A (en) * 1979-01-03 1982-10-26 Soneruds Maskin Aktiebolag Bucket assembly
US4439938A (en) * 1980-11-17 1984-04-03 Envirotech Corporation Coupling mechanism
US4480955A (en) * 1981-02-05 1984-11-06 Maroochy Shire Council Coupling for earth moving tools etc.
US4597205A (en) * 1984-05-04 1986-07-01 Guest William H Snow plow clamp assembly
US4809449A (en) * 1986-08-27 1989-03-07 Nikola Solaja Loader attachment
US4907356A (en) * 1989-01-23 1990-03-13 Labounty Kenneth R Slipper bucket for grapple
US5062227A (en) * 1989-06-20 1991-11-05 Verachtert Beheer B.V. Device for breaking objects consisting of concrete or similar material
US5094581A (en) * 1990-11-13 1992-03-10 Lamb George K Bale handling apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243356A (en) * 1978-03-30 1981-01-06 Caterpillar Mitsubishi Ltd. Quick coupler
US4355476A (en) * 1979-01-03 1982-10-26 Soneruds Maskin Aktiebolag Bucket assembly
US4297074A (en) * 1980-01-07 1981-10-27 Ballinger Paul V Demountable interconnection
US4439938A (en) * 1980-11-17 1984-04-03 Envirotech Corporation Coupling mechanism
US4480955A (en) * 1981-02-05 1984-11-06 Maroochy Shire Council Coupling for earth moving tools etc.
US4597205A (en) * 1984-05-04 1986-07-01 Guest William H Snow plow clamp assembly
US4809449A (en) * 1986-08-27 1989-03-07 Nikola Solaja Loader attachment
US4907356A (en) * 1989-01-23 1990-03-13 Labounty Kenneth R Slipper bucket for grapple
US5062227A (en) * 1989-06-20 1991-11-05 Verachtert Beheer B.V. Device for breaking objects consisting of concrete or similar material
US5094581A (en) * 1990-11-13 1992-03-10 Lamb George K Bale handling apparatus

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002031271A3 (fr) * 2000-10-10 2002-09-19 Josef Martin Gmbh & Co Kg Dispositif de fixation interchangeable d'une piece rapportee telle qu'une pelle, a une fleche de pelle ou a un vehicule
US7004712B2 (en) 2000-10-10 2006-02-28 Dietmar Martin Tool for exchangeably fastening an implement to an excavator boom
EP1477615A1 (fr) * 2003-05-13 2004-11-17 Ateliers de Construction du Beaujolais Dispositif de couplage d'un outil à l'extrémité de la flèche d'un engin, tel qu'une pelle hydraulique
FR2854909A1 (fr) * 2003-05-13 2004-11-19 Const Du Beaujolais Atel Dispositif de couplage d'un outil a l'extremite de la fleche d'un engin, tel qu'une pelle hydraulique
WO2012156673A1 (fr) * 2011-05-19 2012-11-22 Shadowfiction Limited Attelage rapide automatique destiné à une excavatrice
WO2012156672A1 (fr) * 2011-05-19 2012-11-22 Shadowfiction Limited Attelage rapide automatique destiné à une excavatrice
GB2506777A (en) * 2011-05-19 2014-04-09 Shadowfiction Ltd An automatic quick hitch for an excavator
CN111712602A (zh) * 2018-04-27 2020-09-25 沃尔沃建筑设备公司 用于建筑机械的可移除工具组件
WO2019206425A1 (fr) * 2018-04-27 2019-10-31 Volvo Construction Equipment Ab Ensemble flèche pour engins de chantier
CN111712602B (zh) * 2018-04-27 2023-04-04 沃尔沃建筑设备公司 用于建筑机械的可移除工具组件
US11840821B2 (en) 2018-04-27 2023-12-12 Volvo Construction Equipment Ab Removable tool assembly for construction machines
US12071741B2 (en) 2019-02-04 2024-08-27 Sumitomo Heavy Industries, Ltd. Shovel
CN113454292A (zh) * 2019-02-15 2021-09-28 住友重机械工业株式会社 挖土机
KR20210125497A (ko) * 2019-02-15 2021-10-18 스미도모쥬기가이고교 가부시키가이샤 쇼벨
EP3926103A4 (fr) * 2019-02-15 2022-03-30 Sumitomo Heavy Industries, Ltd. Excavatrice
KR102708666B1 (ko) 2019-02-15 2024-09-20 스미도모쥬기가이고교 가부시키가이샤 쇼벨
US12098516B2 (en) 2019-02-15 2024-09-24 Sumitomo Heavy Industries, Ltd. Shovel and system

Also Published As

Publication number Publication date
JP2505381B2 (ja) 1996-06-05
JPH059950A (ja) 1993-01-19
AU2318092A (en) 1993-02-11

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