US3794195A - Quick-attaching mechanism - Google Patents

Quick-attaching mechanism Download PDF

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Publication number
US3794195A
US3794195A US00178996A US3794195DA US3794195A US 3794195 A US3794195 A US 3794195A US 00178996 A US00178996 A US 00178996A US 3794195D A US3794195D A US 3794195DA US 3794195 A US3794195 A US 3794195A
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United States
Prior art keywords
mounting plate
wedging
material handling
implement
quick
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.)
Expired - Lifetime
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US00178996A
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English (en)
Inventor
J Clevenger
J Stohler
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.)
New Holland North America Inc
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Sperry Rand Corp
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Publication date
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Publication of US3794195A publication Critical patent/US3794195A/en
Assigned to NEW HOLLAND INC. reassignment NEW HOLLAND INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SPERRY RAND CORPORATION
Assigned to FORD NEW HOLLAND, INC., A CORP. OF DE. reassignment FORD NEW HOLLAND, INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: NEW HOLLAND INC., A CORP. OF DE.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/3631—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 transversal locking element
    • 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
    • E02F3/3668—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where engagement is effected by a mechanical lever or handle
    • 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 quickattaching mechanism includes a mounting lip or cavity formed along an upper rear portion of the material handling implement and particularly adapted to receive an upper edge of a mounting plate that is pivotally mounted to the remote end of the boom structure.
  • an over-center wedging mechanism is provided with said mounting plate for engagement with a pair of hook members that are fixed to said material handling implement and extend rearwardly therefrom, through openings within said mounting plate.
  • Loaders today especially the industrial type, often are provided with several different sizes and types of material handling implements to perform numerous working operations.
  • Changing from one material handling implement to another has been a problem on many prior art devices because of the time and labor spent in making a changeover.
  • Much of the time and labor involved is attributable to the fact that such implements are most often heavy, awkward to manipulate and in some cases require special tools to accomplish the changeover.
  • Another object of the present invention is to provide a quick-attaching mechanism having a permanent mounting plate adapted to readily receive numerous sizes and types of material handling implements, the material handling implements having cooperative attaching structure particularly adapted to cooperate with said mounting plate in the formation of a quick and reliable coupled connection between the implement being attached and the mounting plate.
  • a further object of the present invention is to provide said material handling implements with a mounting lip or cavity adapted to receive therein an edge portion of said mounting plate, wherein the insertion of the edge of said mounting plate within said mounting lip or cavity enables the implement to be lifted from the ground or its resting position without the use of any external force.
  • Still another object of the present invention resides in the provision of hook members fixed to said material handling implements and extending therefrom for engagement with a wedging mechanism disposed on said mounting plate, wherein the engagement of said wedging mechanism with said hook members acts to draw the implement and mounting plate together and firmly maintain the two in a coupled relationship.
  • a further object of the present invention resides in the provision of an over-center linkage mechanism for selectively actuating said wedging mechanism for engagement and disengagement with said hook members.
  • FIG. 1 is a side elevational view of a loader incorporating the quick-attaching mechanism of the present invention.
  • FIG. 2 is a somewhat enlarged fragmentary side elevational view of the loader particularly illustrating the initial approach of the loader during the quick-coupling execution.
  • FIG. 8 is a view similar to FIG. 7, with the exception that the wedging mechanism is engaged with said hook members.
  • FIG. 9 is a perspective view of a wedging block employed within the present invention.
  • a loader of the industrial type is indicated by numeral 10.
  • the loader 10 is provided with a chassis structure comprised of a pair of laterally spaced drive housings 16, each of the drive housings disposed on one side of the loader and being of an enclosed structure for containing a chain drive, not shown, in a lubricant solution.
  • Rotatively mounted to said drive housings l6 and driven by said chain drive is a front wheel 12 and a rear wheel 14.
  • Carried by the drive housings 16 is a main body having laterally spaced side walls 20 and a rear engine compartment 22.
  • a cab extends over a central portion of the main body and defines an operators station therebeneath.
  • the cab includes a pair of upright front support post 26 which extend upwardly from the main body and a corresponding pair of rear support post 28, all joined about their upper ends by a roof structure 30.
  • the present loader further includes a boom structure indicated generally by the numeral 34 in FIG. 1.
  • Boom structure 34 is basically comprised of a pair of boom arms on each side of the loader, these boom arms being termed an upper boom arm 36 and a lower boom arm 38.
  • the lower boom arms 38 are pivotally secured to a respective side of the loader and extend generally rearwardly therefrom.
  • Each upper boom arm 36 has one end extremity pivotally connected to the rearmost extremity of a lower boom arm 38 and extends generally upwardly therefrom for a short distance and then bends generally forward and projects therefrom past the forwardmost portion of the loader 10.
  • a pair of support links 40 are pivotally interconnected between a forward portion of the cab and a rear portion of the upper boom arms 36.
  • the boom structure is powered by hydraulics and in the present case two hydraulic cylinders (only one of which is shown) indicated by the numeral 42 are employed. More particular, the hydraulic cylinders 42 are pivotally connected at the cylinderto a side portion of the loader just above the pivotal connection of the lower boom arm 38 with the loader. The rod portion of the cylinders 42 are pivotally connected to a rear intermediate point on the upper boom arms 36.
  • FIGS. 2--6 relate to the quick-attaching mechanism for coupling a material handling implement, here being a bucket and indicated by the numeral 50, to the upper boom arms 36.
  • the quick-attaching mechanism of the present invention basically comprises a mounting plate carried by the upper boom arms, and cooperating attaching structure formed on the material handling implement to be attached.
  • a mounting plate indicated by numeral 52
  • Mounting plate 52 includes an upper edge 54 which is adapted to be received within a mounting cavity or lip 56 formed transversely along the upper rear edge of the material handling implement 50, as seen in FIG. 3.
  • the implement 50 is provided with hook members 58 which extend rearwardly through said mounting plate for engagement with a wedging mechanism 60, the wedging mechanism 60 being selectively actuated for engagement and disengagement with said hook members by an over-center linkage 62.
  • the mounting plate 52 is of a general trapezoid shape and includes three laterally spaced reinforcing plates 64, 66, 68, along each rear side. Formed within the lower outside portions of the mounting plate 52, between the two outer reinforcing plates 64, 66 is a pair of square cut-outs 70.
  • the cut-outs 70 are dimensioned to receive the upper boom extensions 36a which are pivotally connected therein by a pin 72 which extends through the extension members and the outer reinforcing plates 64, 68.
  • Mounting plate 50 is articulated back and forth about the axis of the pins 72 by a pair of remotely controlled hydraulic cylinders 74 (only one of which is shown). Hydraulic cylinders 74 are anchored to a cross bar, not shown, that extends between the upper boom arms 36 just behind the mounting plate 52. Each cylinder 74 includes a rod or shaft 76 that extends forwardly therefrom and connects to the rear face of the mounting plate 50 about a pin 78 that extends between the inner pair of reinforcing plates 66, 68 (FIG. 6).
  • each wedging mechanism 60 Disposed about each side of the mounting plates rear face is a wedging mechanism 60 and an actuating overcenter linkage 62. Since the wedging mechanism and over-center linkages are of identical structure on each side, a description of one will be sufficient for the other. First, it is noted that each wedging mechanism 60 is disposed generally above a rectangular opening 80 formed within the mounting plate, the opening 80 being provided so that the hook members 58, extending rearwardly from the implement 50, may project through the mounting plate for engagement with each of said wedging mechanisms.
  • a plate 82 is disposed inwardly of the inner most reinforcing plate 68, and both the plate 82 and the inner most reinforcing plate 68 have lateral aligned rectangular openings 84 therein, the openings being spaced just above the lower rectangular hook member openings 80.
  • Slideably mounted in each of the openings 84 is a wedging block 86.
  • each wedging mechanism 60 includes a pair of blocks 86 disposed in side-by-side relationship about a shaft 88, the shaft extending through the openings 84 in plate 82 and inner reinforcing plate 68 and confined therein by a pair of cotter pins 90, or other suitable means.
  • the wedging blocks 86 include an outer rectangular cross sectional area 86a that is confined within the openings 84 in plates 68,82, and an inner cross section that includes a pair of tapered surfaces 86b for engagement with said hook members 58 (FIG. 9).
  • Over-center linkage 62 comprises a block retaining plate 92 pivotally connected about shaft 88 between a pair of blocks 86, and an adjustable connecting link 94 pivotally connected at one end to pin 78 and pivotally connected at the other end to the block retaining plate 92.
  • Fixed to the block retaining plate 92 and extending therefrom is a lever arm 96, as best seen in FIGS. 7 and 8.
  • a spring 98 is interconnected between the lever arm 96 and the mounting plate 52.
  • the material handling implement includes a mounting lip 56 disposed about an upper rear portion of the material handling implement 50. Extending downwardly and outwardly from the outer sides of the mounting lip 56 is a pair of guide rails 100 (FIG. 2). The upward convergence of these guide rails 100 enables the operator to insert the upper edge 54 of the mounting plate into the mounting lip 56 without being precisely in line therewith.
  • each hook member 58 includes a pair of individual hooks with each of the individual hooks adapted for engagement with the tapered surface 86b of a block 86.
  • the hook members are particularly spaced to align and extend through the rectangular openings below the wedging mechanism 60.
  • each hook includes a first leg 58a which extends generally rearwardly from the implement. Extending generally upwardly from the rear end of first leg 58a is a second leg 58b, the second leg 58b having an inner side 58c that is tapered for engagement with the tapered surface 86b of a corresponding wedge block 86.
  • the operator positions the loader such that the mounting plate 52 is closely adjacent to the rear side of the implement.
  • the mounting plate 52 is lifted upwardly by the upper boom arms 36 and with the aid of the guide rails, the upper edge 54 is inserted within the mounting lip 56.
  • the upper boom arms 36 continue to lift upwardly, raising the material handling implement from the ground or its resting position.
  • the lower rear portion of the implement tends to swing rearwardly such that the rear face of the implement 50 lies adjacent the front face of the mounting plate 52.
  • the hook members 58 now extend through the openings 80 within the mounting plate 52.
  • the lever arm 96 is pushed over-center toward the upper edge of the mounting plate 50, causing the retaining plate 92 to move toward said hook member 58.
  • the movement of the retaining plate 92 results in corresponding sliding movement of the wedging blocks 86 within the openings 84 of the inner plate 82 and the inner reinforcing plate 68.
  • a tapered surface, 86b of the wedging block engages the inner side 580 of the second leg 58b of an individual hook.
  • the wedging action of the wedging block against the second leg 58b causes the implement to be drawn closely adjacent the mounting plate 52 and results in a firm coupling connection that assures that the upper edge 54 of the mounting plate 52 is well contained within the mounting lip 56.
  • the lever arm 96 is brought back over-center as in FIG. 7.
  • the wedging blocks 86 are disengaged from the hook members 58.
  • the upper boom arms 36 are lowered until the implement 50 rests on the ground, at which time the upper edge 54 of the mounting plate is tilted forward and removed from the implement, completing the uncoupling operation.
  • the present quick-attaching mechanism of the present invention allows the operator to quickly and easily couple and uncouple implements to the loader in a simple manner without the use of tools and further without having to expend this energy lifting and shifting the implement.
  • a quick-attaching mechanism for coupling a material handling implement to the remote end of a boom structure comprising in combination: a mounting plate mounted to the remote end of said boom structure; a wedging mechanism slideably mounted on said mounting plate about the rear side thereof; a mounting lip formed on said implement for receiving an edge extending from said mounting plate; a pair of upwardly converging guide rails mounted on the rear side of said material handling implement for guiding said edge extending from said mounting plate into said mounting lip; a wedge engaging structure fixed to said implement and extending rearwardly therefrom through openings in said mounting plate; and means for actuating said wedging mechanism back and forth for selectivelyen- 1, wherein said actuating means include an over-center linkage interconnected between said mounting plate and said wedging mechanism.
  • a quick-attaching mechanism as recited in claim 1, wherein said wedge engaging structure comprises a generally L-shaped hook member.
  • a quick-attaching mechanism as recited in claim 1, wherein said mounting plate includes at least one opening therein aligned with said wedge engaging structure such that said wedge engaging structure passes therethrough when said implement is coupled to said mounting plate.
  • a quick-attaching mechanism as recited in claim 1, wherein said wedging mechanism comprises a wedging block mounted on a shaft and slideable therewith for selective engagement with said wedge engaging structure extending from said implement.
  • a quick-attaching mechanism for coupling a material handling implement to the remote end of a boom structure comprising in combination: a mounting plate pivotally mounted to the remote end of said boom structure; a wedging block structure slideably mounted about the rear of said mounting plate; a mounting lip transversely disposed about the rear of said material handling implement; a pair of laterally spaced upwardly converging guide plates fixed about the rear side of said implement for guiding the upward edge of said mounting plate into said mounting lip; a hook member structure fixed to the rear side of said material handling implement and extending rearwardly therefrom through openings formed within said mounting plate; and an over-center actuating linkage operatively connected to said wedging block structure for actuating said block structure back and forth for engagement and disengagement with said hook member structure.
  • a quick-attaching mechanism as recited in claim 6, wherein said hook member structure includes a first leg fixed at one end to the rear of said implement and extending generally rearwardly therefrom; and a second leg extending generally upwardly from the other end of said first leg, said second leg having an inner edge adapted for wedging engagement with said wedging block structure.
  • said wedging block structure comprises first and second sets of laterally spaced wedging blocks, each set of wedging blocks including a pair of individual blocks disposed in side-by-side relationship about a shaft extending between a pair of plates and slideable therein; and wherein said hook member structure includes a pair of book structures laterally spaced in alignment with said first and second sets of wedging blocks for selective engagement therewith.
  • a quick-attaching mechanism for coupling a material handling implement to the remote end of a boom structure extending from a loader comprising in combination', a mounting lip formed transversely about an upper portion of said material handling implement; a pair of laterally spaced hook members fixed to the rear of said material handling implement below said mounting lip, each of said hook members being generally L- shaped and orientated such that a first leg extends rearwardly from the material handling implement and a second leg extends generally upwardly from the end of said first leg; a pair of upwardly converging guide rails mounted on the rear of said implement; a mounting plate pivotally mounted to the remote end of said boom structure, said mounting plate having an upper edge portion adapted to be guided by said guide rails for insertion into said mounting lip for supporting said material handling implement, said mounting plate further including a pair of openings formed therein, the openings being laterially spaced and aligned with said hook members such that when said material handling implement and said mounting plate are disposed closely adjacent each other said hook members project rearwardly through
  • each set of wedging blocks includes a pair of individual blocks carried on a shaft in side-by-side relationship, with each individual block slideably mounted within an opening in an adjacent plate; and wherein said over-center linkage mechanism includes a retaining plate connected to said shaft, a connecting link pivotally connected at one end to said retaining plate and pivotally connected at the other end to said mounting plate, and a lever arm fixed to said retaining plate and extending therefrom the actuating said overcenter mechanism.
  • a quick-attaching mechanism as recited in claim 9, wherein said mounting plate is of a general trapezoidal shape for co-acting with said upwardly coverging guide rails to align the upper edge of said mounting plate for insertion into said mounting lip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Agricultural Machines (AREA)
US00178996A 1971-09-09 1971-09-09 Quick-attaching mechanism Expired - Lifetime US3794195A (en)

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US17899671A 1971-09-09 1971-09-09

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US (1) US3794195A (enrdf_load_stackoverflow)
BE (1) BE788533A (enrdf_load_stackoverflow)
FR (1) FR2152770B1 (enrdf_load_stackoverflow)
GB (1) GB1381643A (enrdf_load_stackoverflow)

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US3876091A (en) * 1974-07-26 1975-04-08 Rivinius Inc Implement connecting coupling mechanism
US3883015A (en) * 1973-08-27 1975-05-13 Dynamic Ind Quick detachable bucket
US3934738A (en) * 1974-04-01 1976-01-27 Wain-Roy, Inc. Tool connecting
US3935953A (en) * 1974-06-24 1976-02-03 Caterpillar Tractor Co. Implement mounting means for earthworking vehicles
US4013182A (en) * 1975-04-21 1977-03-22 Rockland, Inc. Detachable coupling system
US4071154A (en) * 1976-09-03 1978-01-31 Retzlaff Reynold R Bracket connection for backhoe and skip loader
US4119225A (en) * 1977-04-18 1978-10-10 Owatonna Manufacturing Company, Inc. Mounting means for attaching an implement to a vehicle
US4225283A (en) * 1979-02-15 1980-09-30 J. I. Case Company Backhoe bucket quick coupling
US4297074A (en) * 1980-01-07 1981-10-27 Ballinger Paul V Demountable interconnection
US4477101A (en) * 1981-04-15 1984-10-16 Tunamatic Handelsbolag Arrangement for coupling an implement to a tractor
US4509768A (en) * 1982-05-24 1985-04-09 Karl Kassbohrer Fahrezeugwerke Gmbh Vehicle with detachable implement
US4545720A (en) * 1984-05-17 1985-10-08 J. I. Case Company Quick coupler assembly
US4663866A (en) * 1984-04-24 1987-05-12 Bengt Karlsson Quick coupling attachment for operating tools
US4787811A (en) * 1983-08-22 1988-11-29 Westendorf Mfg. Co., Inc. Quick attach means for attachments
US4812103A (en) * 1988-03-22 1989-03-14 J. I. Case Company Implement-coupling assembly for material-handling apparatus
US4836741A (en) * 1986-08-12 1989-06-06 Consolidated Technologies, Corp. Backhoe hitch apparatus
US4929143A (en) * 1989-01-31 1990-05-29 Gehl Company Quick-attaching mechanism
US5064338A (en) * 1989-12-22 1991-11-12 Lawrence Inc. Implement mounting apparatus for tractors and mowers
US5078569A (en) * 1990-04-30 1992-01-07 J. I. Case Company Quick attaching mechanism for a front-end loader
US5098252A (en) * 1991-02-04 1992-03-24 Ford New Holland, Inc. Skid steer loader adaptor
US5382110A (en) * 1992-12-30 1995-01-17 Esco Corporation Quick coupling device
US5394630A (en) * 1990-07-18 1995-03-07 Moinat; Etienne Device for mounting a tool at the end of a construction-machine jib
US5685689A (en) * 1996-01-03 1997-11-11 Great Bend Manufacturing Co., Inc. Quick attach system for front end loader
US5836734A (en) * 1997-10-17 1998-11-17 Deere & Company Latching device with detent
US5984618A (en) * 1997-06-30 1999-11-16 Caterpillar Inc. Box boom loader mechanism
US6227792B1 (en) 1997-06-30 2001-05-08 Caterpillar S.A.R.L. Vertical engagement hydraulic tool coupler
US6332748B1 (en) 1999-11-09 2001-12-25 Deere & Company Rotating pawl tool latch
US6336785B1 (en) 1998-03-27 2002-01-08 Nippon Pneumatic Mfg. Co., Ltd. Quick coupler for heavy equipment
WO2002059426A1 (de) * 2001-01-23 2002-08-01 Nagler Juergen Kupplung von arbeitswerkzeugen insbesondere an hydraulikbaggern
US6470604B1 (en) 2000-07-20 2002-10-29 Farmers' Factory Company Snowplow attachment for pushing and pulling snow up close to buildings or other permanent structures
US6860706B2 (en) 1998-01-30 2005-03-01 Caterpillar Inc. Method of verifying coupling of an implement to a work machine
US20050252048A1 (en) * 2002-07-15 2005-11-17 Max Segerljung Securing device
US7073972B1 (en) 2004-04-30 2006-07-11 Schumacher Michael S Conversion plate with schur-lock pin mechanism
US20070180822A1 (en) * 2006-02-07 2007-08-09 White Drive Products, Inc. Hydraulic transaxle for garden care vehicle
US7513732B1 (en) 2007-01-31 2009-04-07 Callens Albert C Loader attachment system
US20130051964A1 (en) * 2011-08-26 2013-02-28 Gilbert Bernier Inverting of Attachments for Working Machines Having Front End Loader Configurations
US8449217B2 (en) 2011-10-31 2013-05-28 Martin DiPizio Trench paver attachment
US20140317967A1 (en) * 2013-04-24 2014-10-30 Caterpillar Inc. Excavator with Expanded Work Implement Compatibility
DE202011110652U1 (de) 2011-10-05 2015-06-03 Caterpillar Work Tools B. V. Abbruchgerät
US20160021823A1 (en) * 2014-07-24 2016-01-28 Green Industry Innovators, L.L.C. Universal mounting assembly for a utility vehicle and a system incorporating the same
US9809945B1 (en) * 2015-06-08 2017-11-07 Robert Middleton Method, apparatus, and kit for providing an adapter on earth moving equipment
US12146289B1 (en) * 2020-10-23 2024-11-19 Luke John Deters Self adjusting twin stage locking coupler

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US4251181A (en) 1979-06-27 1981-02-17 Loed Corporation Implement coupling apparatus for boom-type vehicle
US4625988A (en) * 1983-12-19 1986-12-02 Henke Manufacturing Corporation Quick hitch and method of using same
GB9107596D0 (en) * 1991-04-10 1991-05-29 Dunbar Ian S A mounting assembly for a digging bucket
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US3016157A (en) * 1957-12-19 1962-01-09 Lodal Inc Loader apparatus
US3237795A (en) * 1964-09-24 1966-03-01 Erickson Power Lift Trucks Inc Means for detachably securing work heads to boom-equipped power trucks and the like
US3417886A (en) * 1967-06-07 1968-12-24 Clifton F. Stuart Implement hitch for tractors and loaders
US3524507A (en) * 1967-11-24 1970-08-18 Abex Corp Slushing scraper

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Note Brisson guide rails 48 *

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883015A (en) * 1973-08-27 1975-05-13 Dynamic Ind Quick detachable bucket
US3934738A (en) * 1974-04-01 1976-01-27 Wain-Roy, Inc. Tool connecting
US3935953A (en) * 1974-06-24 1976-02-03 Caterpillar Tractor Co. Implement mounting means for earthworking vehicles
US3876091A (en) * 1974-07-26 1975-04-08 Rivinius Inc Implement connecting coupling mechanism
US4013182A (en) * 1975-04-21 1977-03-22 Rockland, Inc. Detachable coupling system
US4071154A (en) * 1976-09-03 1978-01-31 Retzlaff Reynold R Bracket connection for backhoe and skip loader
US4119225A (en) * 1977-04-18 1978-10-10 Owatonna Manufacturing Company, Inc. Mounting means for attaching an implement to a vehicle
US4225283A (en) * 1979-02-15 1980-09-30 J. I. Case Company Backhoe bucket quick coupling
US4297074A (en) * 1980-01-07 1981-10-27 Ballinger Paul V Demountable interconnection
US4477101A (en) * 1981-04-15 1984-10-16 Tunamatic Handelsbolag Arrangement for coupling an implement to a tractor
US4509768A (en) * 1982-05-24 1985-04-09 Karl Kassbohrer Fahrezeugwerke Gmbh Vehicle with detachable implement
US4787811A (en) * 1983-08-22 1988-11-29 Westendorf Mfg. Co., Inc. Quick attach means for attachments
US4663866A (en) * 1984-04-24 1987-05-12 Bengt Karlsson Quick coupling attachment for operating tools
US4545720A (en) * 1984-05-17 1985-10-08 J. I. Case Company Quick coupler assembly
US4836741A (en) * 1986-08-12 1989-06-06 Consolidated Technologies, Corp. Backhoe hitch apparatus
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US4929143A (en) * 1989-01-31 1990-05-29 Gehl Company Quick-attaching mechanism
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Also Published As

Publication number Publication date
BE788533A (fr) 1973-01-02
FR2152770A1 (enrdf_load_stackoverflow) 1973-04-27
FR2152770B1 (enrdf_load_stackoverflow) 1975-06-13
GB1381643A (en) 1975-01-22

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