EP0810330A1 - Vorrichtung zum Befestigen eines Werkzeugs am Ende eines Armes eines Schaufelbaggers - Google Patents

Vorrichtung zum Befestigen eines Werkzeugs am Ende eines Armes eines Schaufelbaggers Download PDF

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Publication number
EP0810330A1
EP0810330A1 EP97400869A EP97400869A EP0810330A1 EP 0810330 A1 EP0810330 A1 EP 0810330A1 EP 97400869 A EP97400869 A EP 97400869A EP 97400869 A EP97400869 A EP 97400869A EP 0810330 A1 EP0810330 A1 EP 0810330A1
Authority
EP
European Patent Office
Prior art keywords
tool
stop
axis
shaft
arm
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
Application number
EP97400869A
Other languages
English (en)
French (fr)
Other versions
EP0810330B1 (de
Inventor
Marcel Morin
Jacques Morin
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.)
A RESPONSABILITE MORIN FRERES Ltee Ste
Original Assignee
A RESPONSABILITE MORIN FRERES Ltee Ste
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 A RESPONSABILITE MORIN FRERES Ltee Ste filed Critical A RESPONSABILITE MORIN FRERES Ltee Ste
Publication of EP0810330A1 publication Critical patent/EP0810330A1/de
Application granted granted Critical
Publication of EP0810330B1 publication Critical patent/EP0810330B1/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
    • E02F3/364—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 present invention relates to improvements in devices for fixing a tool to the end of the arm of a mechanical shovel or the like.
  • a quick coupler has two parts, a first part, or attachment member, which is carried by the end of the arm and a second part which is made integral with the tool.
  • the second part is mainly constituted by a shaft, or by two pins, fixed relative to the tool.
  • the first part which is articulated at the end of the arm, has, in its simplest form, a hook forming a semi-cylindrical cradle capable of being engaged on the shaft of the tool when the latter rests on the ground.
  • a device comprising, in its simplest form, a stop provided on the hooking member capable of cooperating, when the tool is locked, with a stop carried by the tool so as to prevent the tool shaft from tending to come out of its cradle.
  • Each of the two abovementioned abutments has a contact surface constituted by a portion of the surface of a straight cylinder with circular director whose axis is coincident with that of the tool shaft, the two surfaces being respectively convex and concave .
  • the radius of the convex surface corresponding to the stop carried by the tree, must be equal to that of the concave surface.
  • the present invention which overcomes these drawbacks, is remarkable in that, when the two stops cooperate in the locked position, the axis of the notional cylinder on which the two contact surfaces of said stops are located is placed in front of the axis of the tool shaft with respect to the direction of rotation of the fastening member when the latter pivots from the unlocked position to the locked position.
  • the fixed stop that carried by the tool shaft, is produced in two assembled parts, one of which has the contact surface, a shim interposed between the two said parts for adjusting the position of said contact surface.
  • 1 is the end of the usual arm of a loader on which it is advisable to fix a tool, such as a bucket.
  • the representation of the bucket has been limited to the beam or shaft 2 which constitutes the edge of the bucket opposite the teeth.
  • the hooking member 3 is produced by means of two identical hooks 4, joined by at least one cross member 5. Each hook has a semi-cylindrical cradle 6 for receiving the shaft 2 of the tool.
  • the attachment member 3 is articulated at the end of the arm 1 by means of an axis 7 and can pivot around said axis by means of rods 8 and 9 subjected to the action of a jack whose the piston rod is shown at 10 in Figure 1.
  • the shaft 2 has, at least, a stop 11 capable of cooperating, when the tool is locked (fig. 2), with a stop 12.
  • the fixed stop 11 has a convex contact surface 14 located on a fictitious straight cylinder C whose generatrices are parallel to the axis 13.
  • the stop 12 has a concave contact surface 15 located on a fictitious straight cylinder C whose generatrices are parallel to the axis 13.
  • the two aforementioned cylinders have the same diameter and, when the member 3 is in the locked position (fig. 2 and 5), the axes of the two fictitious cylinders coincide. There is no play between surfaces 14 and 15 and this is the ideal situation.
  • the axis Ci of the cylinder comprising the surface 14 is offset relative to the axis 13 in the direction of rotation of the member 3 to pass from the position of Figure 1 to that of Figure 2 .
  • the stop 11 is made in two parts 11a and 11b assembled with the interposition of a wedge 16.
  • the assembly is carried out by means of countersunk screws, the axes are shown schematically in 17.
  • the latter device makes it possible to adapt the tool to the attachment member and to correct, definitively, a defect in the construction of the tool.
  • the thickness of the shim 16 is increased and vice versa in the opposite case.

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)
  • Load-Engaging Elements For Cranes (AREA)
  • Earth Drilling (AREA)
EP97400869A 1996-05-30 1997-04-18 Vorrichtung zum Befestigen eines Werkzeugs am Ende eines Armes eines Schaufelbaggers Expired - Lifetime EP0810330B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9606641 1996-05-30
FR9606641A FR2749332B1 (fr) 1996-05-30 1996-05-30 Dispositif pour fixer un outil a l'extremite du bras d'une pelle mecanique

Publications (2)

Publication Number Publication Date
EP0810330A1 true EP0810330A1 (de) 1997-12-03
EP0810330B1 EP0810330B1 (de) 2002-10-09

Family

ID=9492539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400869A Expired - Lifetime EP0810330B1 (de) 1996-05-30 1997-04-18 Vorrichtung zum Befestigen eines Werkzeugs am Ende eines Armes eines Schaufelbaggers

Country Status (6)

Country Link
EP (1) EP0810330B1 (de)
AT (1) ATE225881T1 (de)
DE (1) DE69716164T2 (de)
DK (1) DK0810330T3 (de)
ES (1) ES2184967T3 (de)
FR (1) FR2749332B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213731A (en) * 1971-12-01 1980-07-22 Verachtert Antonius P Excavators
EP0672796A1 (de) * 1994-03-16 1995-09-20 Groupe Pel-Job Schnellwechselvorrichtung für Erdbewegungsmaschine und dgl.
EP0704577A1 (de) * 1994-09-29 1996-04-03 Societe A Responsabilite Limitee : Morin Freres Schnellkupplung zum Befestigen der Arbeitswerkzeuge an einem Baggerausleger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213731A (en) * 1971-12-01 1980-07-22 Verachtert Antonius P Excavators
EP0672796A1 (de) * 1994-03-16 1995-09-20 Groupe Pel-Job Schnellwechselvorrichtung für Erdbewegungsmaschine und dgl.
EP0704577A1 (de) * 1994-09-29 1996-04-03 Societe A Responsabilite Limitee : Morin Freres Schnellkupplung zum Befestigen der Arbeitswerkzeuge an einem Baggerausleger

Also Published As

Publication number Publication date
DK0810330T3 (da) 2003-02-03
ES2184967T3 (es) 2003-04-16
EP0810330B1 (de) 2002-10-09
FR2749332A1 (fr) 1997-12-05
DE69716164T2 (de) 2003-06-05
ATE225881T1 (de) 2002-10-15
DE69716164D1 (de) 2002-11-14
FR2749332B1 (fr) 1998-07-03

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