EP1010819A2 - Vorrichtung zum lösbaren Verbinden eines Ladegerätes an ein Fahrzeug - Google Patents

Vorrichtung zum lösbaren Verbinden eines Ladegerätes an ein Fahrzeug Download PDF

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Publication number
EP1010819A2
EP1010819A2 EP99124126A EP99124126A EP1010819A2 EP 1010819 A2 EP1010819 A2 EP 1010819A2 EP 99124126 A EP99124126 A EP 99124126A EP 99124126 A EP99124126 A EP 99124126A EP 1010819 A2 EP1010819 A2 EP 1010819A2
Authority
EP
European Patent Office
Prior art keywords
crank pin
crank
degrees
angular range
bracket
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.)
Withdrawn
Application number
EP99124126A
Other languages
English (en)
French (fr)
Other versions
EP1010819A3 (de
Inventor
Erich Girstenbrei
Horst-Martin Weident
Peter Reiterer
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.)
AGCO GmbH and Co
Original Assignee
AGCO GmbH and Co
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 AGCO GmbH and Co filed Critical AGCO GmbH and Co
Publication of EP1010819A2 publication Critical patent/EP1010819A2/de
Publication of EP1010819A3 publication Critical patent/EP1010819A3/de
Withdrawn legal-status Critical Current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
    • E02F3/627—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor

Definitions

  • This invention relates to the attachment of loaders to vehicles, and in particular to the attachment of front-end loaders to tractors.
  • DE 3831312 A1 describes apparatus for detachably securing a front-loader attachment on a carrier vehicle.
  • the apparatus comprises a pair of coupling members, each being attachable to respective brackets on either side of the tractor, and a crank pin having a cammed surface.
  • the crank pin passes through the bracket and coupling member, and by rotating the crank pin to the end of its pivoting range the cammed surface thereof causes the crank pin to forcibly engage the coupling member and the bracket, thereby locking the coupling member in position.
  • An adjusting member is provided to set the initial tension, which must be created by the crank pin in its locking position.
  • crank pin is manually pivoted into its locking position, which is limited by a stop. In this position, the crank is at the end of its pivoting range, and in the immediate vicinity of the top dead centre of its stroke.
  • the adjusting member of the known device consists of a conically shaped block, which can be secured by means of a first screw and adjusted by means of a second screw. Compensating for wear involves loosening the securing screw, subsequently adjusting the block by means of the adjusting screw and pre-tensing the block by means of the securing screw, this procedure having to be repeated several times in succession as a rule until the original pre-tension in the vicinity of the top dead centre of the eccentric stroke is set to the requisite accuracy in the locked position.
  • This setting procedure requires a considerable amount of time.
  • the intervening periods between the adjustments which need to be made to the block are relatively short, particularly during the first few hours of use.
  • the objective of the invention is to reduce the time required to re-set the initial tension required to attach the front-loader using a device of the type outlined above.
  • An adjustment member may be provided to set the initial tension provided by the crank pin in its locking position.
  • the adjustment member is adjustable so that the initial tension builds up over the angle ⁇ .
  • a securing device is provided for securing the crankpin in the locked position through the entire angular range ⁇ .
  • the pivoting range within which the crank pin can reach its locking position is significantly widened.
  • the locking position of the crank pin is shifted in the direction towards the end of angular range ⁇ , so that the crank pin can be locked in any position within the angular range.
  • the invention proposes a design that is simple yet meets all requirements and is based on a system whereby the securing device has two securing positions for the crank pins, at the beginning and at the end of the angular range ⁇ .
  • the forced engagement-angular range ⁇ is approximately 40 degrees and the angle ⁇ approximately 10 degrees.
  • Fig. 1 depicts an agricultural tractor comprising a gear housing 1 and a frame 2, which extends forwards in the direction of travel on each side of the vehicle.
  • Front wheels 3 of the vehicle are located in the front region of the frame 2 and are mounted on an axle which is attached to a gear housing 1.
  • a gear housing 1 Arranged above the gear housing 1 and the frame 2 is a driver's cab 5, in front of which there is housed a drive motor covered by a hood 6.
  • Attached to the frame 2 by means of four screws 7 on either side of the hood 6 is an upright bracket 8 which receives a coupling member 9 of a front-loader attachment, not otherwise illustrated in detail.
  • a semi-circular shaped recess 8a open at the top is provided at the upper end of the bracket 8.
  • Each coupling member 9 comprises spaced apart side plates 9a, 9b.
  • the upper end of the bracket 8 extends between the side plates 9a, 9b.
  • a bearing pin 9c passes through the side plates 9a, 9b and rests in the recess 8a.
  • the bracket 8 is provided with an additional support point in the form of an inclined bearing surface 8b beneath the recess 8a.
  • the bearing 8b surface supports the coupling member 9 via a conically shaped adjusting member 10 which is slidable along the bearing surface 8b.
  • a bore 8c is provided in the bracket 8 between the recess 8a and the bearing surface 8b, positioned eccentrically relative to the bores 9d, 9e provided in the side plates 9a and 9b.
  • These bores are designed in such away that a crankpin 11 having a crank 11a and a crank handle 11b can be inserted in them in a specific relative position.
  • This relative position of the crank handle 11b, in which the crank 11a is not yet in contact with the wall of the bore 8c, is shown as a broken line in Fig. 2. If the crank pin 11 is pivoted anti-clockwise starting from the insertion position, the crank 11a lies against the wall of the bore 8c, where it is supported. From this position, the crank 11a is therefore forcibly engaged with the bracket 8.
  • crank pin 11 can be pivoted about its own axis by up to 180 degrees, the crank 11a lying at top dead centre when the pin 11 has been pivoted through this angle.
  • the crank 11a begins to engage the wall of bore 8c when it has been pivoted into the forced engagement angular range ⁇ , which is approximately 40 degrees and begins when the handle 11b has been rotated through 120 degrees from the position shown in broken lines in Figure 2.
  • crank pin 11 Pivoting the crank pin 11 further, through the angle ⁇ (approximately 10 degrees) causes the crank 11a to increasingly push the coupling member 9 across the adjusting member 10 towards the bearing surface 8b of the bracket 8 until the initial tension required to secure the coupling member 9 safely is reached and the crank pin 11 assumes the position illustrated in Fig. 2 with the crank handle 11b shown in solid lines. So that the bearing pin 9c lies in the recess 8a without any play, the bearing surface 8b is inclined towards the line where the recess 8a joins the bearing surface 8b in such a way that the force component generated is great enough to pull the bearing pin 9c into the recess 8a.
  • this device has a U-shaped bracket 12 attached to a side plate 9b, inside which the crank handle 11b can be pivoted. Two aligned bores 12a in the bracket 12 are so arranged that a pegging pin 13 inserted therein will be in a position behind the crank handle 11b of the crank pin 11 when it is located in the locking position described above and will prevent the crank handle 11b from pivoting back.
  • the pegging pin 13 is attached to the one end region of a swap 13a, the other end region thereof being mourned on a stub pin 12b attached to the bracket 12 and secured with a cotter pin 14.
  • crank pin 11 If the locking position of the crank pin 11 shifts beyond the forced engagement-angular range ⁇ due to wear caused by repeated releasing and mounting of the front-loader attachment, it will have no effect on the mounting safety of the front-loader attachment provided the initial tension is re-set to a sufficiently high level beforehand. If the initial tension prevailing when the crank pin 11 is in the locking position illustrated in Fig. 2 is not high enough to ensure that the front-loader attachment can be safely mounted, the crank pin 11 can be pivoted until its crank handle 11b assumes the locking position illustrated in Fig. 3 at the end of the forced-engagement angular range ⁇ , in which it lies against the bracket 12 and can not be pivoted any farther.
  • crank pin 11 can also be secured in this position in the same manner as described above to prevent any inadvertent loosening.
  • two additional bores 12c are provided in which the pegging pin 13, which moves into position behind the crank handle 11b, can be inserted.

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)
  • Agricultural Machines (AREA)
EP99124126A 1998-12-18 1999-12-02 Vorrichtung zum lösbaren Verbinden eines Ladegerätes an ein Fahrzeug Withdrawn EP1010819A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9827868 1998-12-18
GB9827868A GB2344735B (en) 1998-12-18 1998-12-18 Apparatus for detachably securing a loader attachment on a vehicle

Publications (2)

Publication Number Publication Date
EP1010819A2 true EP1010819A2 (de) 2000-06-21
EP1010819A3 EP1010819A3 (de) 2000-10-25

Family

ID=10844458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124126A Withdrawn EP1010819A3 (de) 1998-12-18 1999-12-02 Vorrichtung zum lösbaren Verbinden eines Ladegerätes an ein Fahrzeug

Country Status (2)

Country Link
EP (1) EP1010819A3 (de)
GB (1) GB2344735B (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT303613B (de) * 1969-01-13 1972-12-11 Hauer Franz Einrichtung zur lösbaren Befestigung eines Abstellfrontladers an einem selbstfahrenden Fahrzeug, insbesondere Traktor
DE3100845A1 (de) * 1981-01-14 1983-04-28 Baas Technik GmbH, 2000 Wedel Abstellfrontlader
EP0097437A1 (de) * 1982-06-17 1984-01-04 J.I. Case Europe Limited Frontlader für Schlepper
GB2131391A (en) * 1982-12-06 1984-06-20 Franz Hauer Arrangement for mounting a front loading implement detachably on a vehicle
DE3831212A1 (de) * 1988-09-14 1990-03-22 Fendt & Co Xaver Befestigung eines anbaugeraetes an einem arbeitsfahrzeug, insbesondere eines frontladers an einem ackerschlepper
AT396491B (de) * 1991-04-16 1993-09-27 Hauer Franz Einrichtung zur lösbaren befestigung eines arbeitsgerätes an einem fahrzeug
DE19608549A1 (de) * 1996-03-06 1997-09-11 Lewin Heinz Ulrich Baumaschine mit schnell zu wechselndem Ausleger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1118996A (en) * 1966-02-16 1968-07-03 Int Harvester Co Arrangement for mounting a loader on a vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT303613B (de) * 1969-01-13 1972-12-11 Hauer Franz Einrichtung zur lösbaren Befestigung eines Abstellfrontladers an einem selbstfahrenden Fahrzeug, insbesondere Traktor
DE3100845A1 (de) * 1981-01-14 1983-04-28 Baas Technik GmbH, 2000 Wedel Abstellfrontlader
EP0097437A1 (de) * 1982-06-17 1984-01-04 J.I. Case Europe Limited Frontlader für Schlepper
GB2131391A (en) * 1982-12-06 1984-06-20 Franz Hauer Arrangement for mounting a front loading implement detachably on a vehicle
DE3831212A1 (de) * 1988-09-14 1990-03-22 Fendt & Co Xaver Befestigung eines anbaugeraetes an einem arbeitsfahrzeug, insbesondere eines frontladers an einem ackerschlepper
AT396491B (de) * 1991-04-16 1993-09-27 Hauer Franz Einrichtung zur lösbaren befestigung eines arbeitsgerätes an einem fahrzeug
DE19608549A1 (de) * 1996-03-06 1997-09-11 Lewin Heinz Ulrich Baumaschine mit schnell zu wechselndem Ausleger

Also Published As

Publication number Publication date
GB9827868D0 (en) 1999-02-10
GB2344735B (en) 2003-06-25
GB2344735A (en) 2000-06-21
EP1010819A3 (de) 2000-10-25

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