EP0637649A2 - Automatische Werkzeugkupplungsvorrichtung für Erdbewegungsmaschinen oder dgl. - Google Patents

Automatische Werkzeugkupplungsvorrichtung für Erdbewegungsmaschinen oder dgl. Download PDF

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Publication number
EP0637649A2
EP0637649A2 EP94420225A EP94420225A EP0637649A2 EP 0637649 A2 EP0637649 A2 EP 0637649A2 EP 94420225 A EP94420225 A EP 94420225A EP 94420225 A EP94420225 A EP 94420225A EP 0637649 A2 EP0637649 A2 EP 0637649A2
Authority
EP
European Patent Office
Prior art keywords
tool
tool holder
parallel
intended
cooperating elements
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
EP94420225A
Other languages
English (en)
French (fr)
Other versions
EP0637649A3 (de
Inventor
Jacques Fournier
Henri Marchetta
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.)
GROUPE PEL-JOB
Groupe Pel Job
Original Assignee
GROUPE PEL-JOB
Groupe Pel Job
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 GROUPE PEL-JOB, Groupe Pel Job filed Critical GROUPE PEL-JOB
Publication of EP0637649A2 publication Critical patent/EP0637649A2/de
Publication of EP0637649A3 publication Critical patent/EP0637649A3/de
Ceased 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
    • E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges

Definitions

  • the invention relates to a device for carrying out a rapid and automatic gripping of a tool on an earthmoving machine.
  • the Applicant has described a device for rapid automatic taking of a tool for a handling or earthmoving machine, comprising a tool holder disposed at the end of the work equipment, in which the assembly of the tool holder and the tool is achieved by means of several sets of frustoconical studs and corresponding housings, carried respectively by the tool and the tool holder.
  • the assembly also includes a locking member constituted by a lever with two arms mounted respectively on the tool holder, subjected to the action of a spring intended to press or release the lever arm against a stop provided for this purpose. on the tool.
  • the nipples have only a simple locking role and do not participate in the bearing forces.
  • the invention overcomes these drawbacks. It is aimed at a device for automatic and rapid gripping of a tool for an earthmoving machine, in particular for a loader, which is mechanically rustic, reliable and easy to install, especially on construction sites.
  • the invention aims to use an automatic tool gripping device, formed on the bottom of an assembly by pins and housings, and on the top, by an axis engaging in lights provided for this purpose, respectively on the tool and on the tool holder (or vice-versa).
  • the frustoconical studs are placed on the cross member of the tool and the frustoconical housings are located on the cross member of the tool holder or vice versa.
  • the earthmoving machine is a loader, and the tool is a bucket.
  • the rapid setting device also comprises a locking means formed by a stop disposed on the tool and by a lever with two arms. pivoting fixed on the tool holder, subjected to the action of a spring to engage (or erase) the end of the lever arm in contact with the stop.
  • the front face of the tool holder directed towards the tool follows the rear face of this tool.
  • Figure 1 is a summary representation of a loader bucket seen from the side placed on the ground.
  • Figure 2 is a schematic representation of the same bucket seen from the rear.
  • Figure 3 is a summary representation of the tool holder seen from above.
  • Figure 4 is a representation of the device according to the invention seen from the side, in which the tool holder and the tool placed on the ground, are face to face, but not engaged.
  • FIGS 5 to 7 show the same assembly during engagement, and Figure 8 in the working position.
  • FIG. 9 is a detailed representation of the locking device according to the invention.
  • the reference (1) designates a loader bucket presented and placed on the ground by the bottom (2), whose mouth (3) is directed to the left and whose bottom (4) is shaped flared is directed to the right.
  • the reference (5) designates the attack blade and the reference (6) designates the wear plates.
  • the face (4) of the bucket (1) intended to come opposite the tool holder has on the bottom a crosspiece (10), with a large horizontal axis relative to the ground (2) , comprising two tapered nipples (11,12), with rounded ends, and the point of which is directed downwards.
  • the pins (11,12) are perpendicular to the crosspiece (10).
  • This cross is located in the lower part (7) of the bucket and substantially in the middle thereof, so as to center the bucket (1).
  • Two plates (13,14) converging upwards, even parallel, are arranged on either side of the crosspiece (10). At height (8) of the bottom of the bucket, these two plates (13,14) become parallel to form legs (15,16) parallel to each other and parallel to the working plane of the bucket (1).
  • the reference (17) designates a guide ramp which will be detailed below.
  • the two vertical legs (15,16) each have at their end a light (18) open downwards, the bottoms (19) of which are arranged in the same horizontal plane.
  • the edges (20,21) of this light are parallel or slightly conical converging which can be connected to the rounded bottom (19).
  • the reference (22) designates a wear reinforcement, for example in extra-hard treated steel.
  • the outer edge (21) of each lumen is gradually flared and rounded outward, to automatically guide the release (or engagement) of the horizontal axis (40) characteristic of the tool grip.
  • the characteristic parallel tabs (15,16) follow the shape of an ear in plan and are connected without discontinuity with the plates (13,14).
  • the end (30) (see Figures 3,8,9) of the working arm, is articulated by an axis (31) on the tool holder designated by the reference (32).
  • the rod (33) for controlling the bucket (1) actuated by a jack not shown, is centered at (34) on the top of the tool holder formed by two parallel plates respectively (35) and (36) in shape general of L.
  • the face of the tool holder (32) intended to come opposite the bottom (4) of the tool has on the bottom a crosspiece (37) carrying two housings (38,39) flared tapered ends, the point of which points downwards, intended to receive and cooperate with the nipples (11,12).
  • the other L-shaped part of the plates (35,36) has on the top, a horizontal axis (40) intended to be received in the slots (18) of the two tabs (15,16) of the tool holder.
  • the top of the bucket has, at the height of the two legs (15, 16), a guide ramp (17) inclined progressively upwards.
  • the inclined portion (72) is substantially disposed at the height of the bottom (19) of the slots (18) and is connected to a portion (71) parallel to the face (4) of the tool, disposed behind the bottom (19) lights (18).
  • the top of the tool holder has above the characteristic axis (40) a guide stop (80) which matches a rounded shape (82) making it possible to cooperate with the inclined portion (72) of the ramp ( 17) guide.
  • this stop (80) on the ramp (17) and the axis (40) in the slot (18) causes, under the effect of the weight of the tool, the pivoting of the tool around an axis passing through the points of contact (85) of the axis (40) with the slots (18). This pivoting takes place until the flat parts (72, 81) of the ramp and guide stop come into contact.
  • the operator continues to advance the arm (30) and under the effect of the inclination of the edge (20) in contact with the axis (40), the tool holder continues to penetrate the lumen (18) while causing the tool to pivot by pressing the guide stop (73) on the tool guide ramp (72), so that the housing ( 38) comes opposite and in contact with the stud (11), which is thus automatically engaged when the axis (40) reaches the bottom (19) of the light (18) (see FIG. 8).
  • the reference (22) designates a wear plate intended to prevent dulling during successive operations.
  • the axis (40) of the tool holder is brought into contact (85) with the tabs (15, 16) at the entrance to the lights (18).
  • the front end of the tool holder consisting of the guide stop (80) also comes into contact (73) with the inclined part (72) of the guide ramp (17) of the tool.
  • the support (82) of the stop (73) on the ramp rotates the tool around the contact points (85) so that the inclined part (72) of the guide ramp disappears.
  • the axis (40) slides inside the light (18) in the direction of the final position.
  • the following position, illustrated in FIG. 7, is characterized by the sliding of the planar part (81) of the guide stop on the planar part (71) extending the guide ramp (72).
  • This sliding of the two flat parts results in the translation of the tool relative to the tool holder.
  • the dimensions and the direction of the ramp are such that the axes of the cooperating elements are aligned and that the translation ends with the embedding of the pins (11) in their housings (38, 39) (see FIG. 8).
  • This device essentially comprises a stop (50) disposed on the tool and more precisely on the upper part (4) of the bottom of the bucket ( 1) in the vicinity of the inflection point (8) of this bottom.
  • the tool holder (32), and more particularly next to each flange (35,36) comprises a lever designated by the general reference (51) formed by two arms (52,53) extended by a cleat (54). This lever is articulated around an axis (55).
  • the arm (52) is associated by its bearing face (56) with a jack, not shown, articulated at (60) and (61) controlling the unlocking operation.
  • a spring (57) for example a spiral, is placed in a housing (58) provided for this purpose. This spring (57) is supported on the face (59) of the arms (53).
  • the locking operation is carried out automatically, by tilting the cleat (54) on the rear face of the tool.
  • the cleat (54) prevents the tool from rising upwards and the cone prevents the tool from moving in the opposite direction.
  • the locking and unlocking operation is carried out in a known manner, as taught in the document cited in the preamble and widely used by the Applicant.
  • the unlocking cylinder is eliminated and the unlocking operation is carried out manually by a lever.
  • this device can be used successfully on all earth-moving or handling machines, and in particular on loaders with monobloc or telescopic arms.

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)
  • Earth Drilling (AREA)
  • Gripping On Spindles (AREA)
EP94420225A 1993-08-06 1994-08-02 Automatische Werkzeugkupplungsvorrichtung für Erdbewegungsmaschinen oder dgl. Ceased EP0637649A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9309880A FR2708679B1 (fr) 1993-08-06 1993-08-06 Dispositif pour prise automatique d'outil pour engin de terrassement ou analogue.
FR9309880 1993-08-06

Publications (2)

Publication Number Publication Date
EP0637649A2 true EP0637649A2 (de) 1995-02-08
EP0637649A3 EP0637649A3 (de) 1996-01-03

Family

ID=9450131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94420225A Ceased EP0637649A3 (de) 1993-08-06 1994-08-02 Automatische Werkzeugkupplungsvorrichtung für Erdbewegungsmaschinen oder dgl.

Country Status (2)

Country Link
EP (1) EP0637649A3 (de)
FR (1) FR2708679B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0864697A1 (de) * 1997-03-10 1998-09-16 Clark Equipment Company Befestigungsvorrichtung für ein Erdbearbeitungsgerät
WO1998040569A1 (en) * 1997-03-10 1998-09-17 Clark Equipment Company Frame for mounting on a boom mounted quick change bracket
US5983535A (en) * 1997-03-10 1999-11-16 Clark Equipment Company Fastener secured frame for boom mounted quick change bracket
EP2241680A1 (de) * 2009-04-17 2010-10-20 Morin Verbindungsvorrichtung, Schnellwechselvorrichtung und Verbindungsanordnung.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3027037B1 (fr) 2014-10-13 2018-01-26 Groupe Mecalac Porte-outil pour engin de chantier ou de travaux publics

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068332A (en) * 1980-01-31 1981-08-12 Pingon Pierre Joseph Device constituting an automatic tool gripper for an excavator loader earthmoving machine or the like
JPS57137532A (en) * 1981-02-20 1982-08-25 Caterpillar Mitsubishi Ltd Quick coupler
US4480955A (en) * 1981-02-05 1984-11-06 Maroochy Shire Council Coupling for earth moving tools etc.
EP0273828A1 (de) * 1986-12-26 1988-07-06 Ardennes Equipment S.A. Vorrichtung zum schnellen Verbinden von Baumaschinen- und Instandhaltungsgeräten
US4963071A (en) * 1989-06-23 1990-10-16 American Coupler Systems, Inc. Coupler assembly between a prime mover and a work implement
EP0438931A1 (de) * 1990-01-26 1991-07-31 Societe En Nom Collectif Morin Freres Vorrichtung zum Verbinden einer Schaufel, oder dergleichen, am Auslegerende eines Laders
FR2690718A1 (fr) * 1992-05-04 1993-11-05 Groupe Pel Job Dispositif de sécurité pour prise automatique d'outils, en particulier pour machines de terrassement ou analogue.
EP0672796A1 (de) * 1994-03-16 1995-09-20 Groupe Pel-Job Schnellwechselvorrichtung für Erdbewegungsmaschine und dgl.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068332A (en) * 1980-01-31 1981-08-12 Pingon Pierre Joseph Device constituting an automatic tool gripper for an excavator loader earthmoving machine or the like
US4480955A (en) * 1981-02-05 1984-11-06 Maroochy Shire Council Coupling for earth moving tools etc.
JPS57137532A (en) * 1981-02-20 1982-08-25 Caterpillar Mitsubishi Ltd Quick coupler
EP0273828A1 (de) * 1986-12-26 1988-07-06 Ardennes Equipment S.A. Vorrichtung zum schnellen Verbinden von Baumaschinen- und Instandhaltungsgeräten
US4963071A (en) * 1989-06-23 1990-10-16 American Coupler Systems, Inc. Coupler assembly between a prime mover and a work implement
EP0438931A1 (de) * 1990-01-26 1991-07-31 Societe En Nom Collectif Morin Freres Vorrichtung zum Verbinden einer Schaufel, oder dergleichen, am Auslegerende eines Laders
FR2690718A1 (fr) * 1992-05-04 1993-11-05 Groupe Pel Job Dispositif de sécurité pour prise automatique d'outils, en particulier pour machines de terrassement ou analogue.
EP0672796A1 (de) * 1994-03-16 1995-09-20 Groupe Pel-Job Schnellwechselvorrichtung für Erdbewegungsmaschine und dgl.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6 no. 240 (M-174) [1118] ,27 Novembre 1982 & JP-A-57 137532 (KIYATAPIRAA MITSUBISHI K.K.) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0864697A1 (de) * 1997-03-10 1998-09-16 Clark Equipment Company Befestigungsvorrichtung für ein Erdbearbeitungsgerät
WO1998040569A1 (en) * 1997-03-10 1998-09-17 Clark Equipment Company Frame for mounting on a boom mounted quick change bracket
US5974706A (en) * 1997-03-10 1999-11-02 Clark Equipment Company Attachment construction for earthworking implement
US5983535A (en) * 1997-03-10 1999-11-16 Clark Equipment Company Fastener secured frame for boom mounted quick change bracket
US6154989A (en) * 1997-03-10 2000-12-05 Clark Equipment Company Attachment construction for earthworking implement
US6163989A (en) * 1997-03-10 2000-12-26 Clark Equipment Company Frame for mounting on a boom mounted quick change bracket
EP2241680A1 (de) * 2009-04-17 2010-10-20 Morin Verbindungsvorrichtung, Schnellwechselvorrichtung und Verbindungsanordnung.
FR2944533A1 (fr) * 2009-04-17 2010-10-22 Morin Dispositif de connexion, coupleur d'attache rapide et ensemble de connexion.

Also Published As

Publication number Publication date
FR2708679A1 (fr) 1995-02-10
FR2708679B1 (fr) 1995-09-01
EP0637649A3 (de) 1996-01-03

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