EP1211357A1 - Frontladeeinrichtung für ein Trägerfahrzeug - Google Patents

Frontladeeinrichtung für ein Trägerfahrzeug Download PDF

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Publication number
EP1211357A1
EP1211357A1 EP01403112A EP01403112A EP1211357A1 EP 1211357 A1 EP1211357 A1 EP 1211357A1 EP 01403112 A EP01403112 A EP 01403112A EP 01403112 A EP01403112 A EP 01403112A EP 1211357 A1 EP1211357 A1 EP 1211357A1
Authority
EP
European Patent Office
Prior art keywords
arm
arms
main
control means
main 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.)
Withdrawn
Application number
EP01403112A
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English (en)
French (fr)
Inventor
Alain Gerbeaux
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.)
Faucheux Industries
Original Assignee
Faucheux Industries
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 Faucheux Industries filed Critical Faucheux Industries
Publication of EP1211357A1 publication Critical patent/EP1211357A1/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Withdrawn legal-status Critical Current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
    • E02F3/28—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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/308—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working outwardly
    • 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
    • E02F3/34—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 with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405—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 with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor

Definitions

  • the present invention relates to a front loader with variable geometry of the type used on handling, in particular in the agricultural field or in the public works.
  • chargers of this type are made of two arms which are articulated at one of their ends respective on a plate which is integral with the part front of the craft and whose free ends can be provided with tools of various types, which are of the various works that one wishes to carry out by means of the charger.
  • chargers often use a shovel or grab that is used to collect various solid elements such as in particular earth or rubble.
  • this tool is itself hinged mounted at the free end of the pivoting arms of the loader under the action of a hydraulic control cylinder.
  • the rotation of the articulated arms is controlled by a cylinder which is supplied with hydraulic fluid by a central placed on the handling machine.
  • the present invention proposes to simplify such a arrangement while minimizing the number of flexible hydraulic lines at the the articulation between the arm and the fixed plate.
  • the present invention thus relates to a device loader of the type arranged in the front part of a machine carrier and comprising at least one main arm, one of which end is pivotally mounted on a plate under the action of control means, and which is provided with an arm secondary one end of which is mounted hinged at the free end of the main arm and the other end receives a working tool, the secondary arm being provided pivot control means, consisting of hydraulic cylinders, relative to the main arm, characterized in that the hydraulic cylinders are supplied by a distributor which is arranged on one of the main or secondary arm.
  • having the dispenser on one of the arms eliminates the inconvenience previously mentioned since only two pipes flexible will be at the level of said articulation, know the two hydraulic lines supplying the distributor. Then from this distributor will leave a bundle of pipes made up of two hydraulic pipes by cylinder to order.
  • Such a provision is particularly interesting in that it facilitates the adaptation of the charger to the different types of carriers on which it can be used. It thus allows to make standardized connections for all types of carriers and chargers, which allows significantly simplify installations on load-bearing vehicles and in particular agricultural tractors.
  • Another advantage of such a distribution is that the flexible lines from the distributor to each cylinder will be much shorter lines and even, assuming that we have so particularly suitable the distributor, the present invention even makes it possible to use pipes flexible of identical length, which is particularly interesting in terms of maintenance for the user which will only have to store one or two elements of pipe identical to be able to troubleshoot all of his material.
  • the arrangement of the distributor on the arm mobile also has another advantage. Indeed, we knows that users have a series of carriers, for example tractors, on which it is possible to have several sets of instruments or charging devices. So far, users who wanted to be able to easily use a device loader on different tractors were forced to provide each of these with a specific distributor.
  • the present invention allows saving substantial by not forcing the buyer to dispose of than a single distributor, namely the one located on the charger.
  • the tool work is provided with means for controlling rotation by compared to the second arm.
  • the device according to the invention can also include means for angularly adjusting the positioning of the secondary arm according to the angular position of the main arm.
  • means for angularly adjusting the positioning of the secondary arm according to the angular position of the main arm Such a provision allows, during the raising movement of the first arm, act on the second arm to bring it back to inside, i.e. towards the wearer so minimize, or even completely avoid, the offset to the front of the work tool, during the passage of this one, from one extreme position to another.
  • a computer will be used in particular of the microcontroller type with linked inputs with means for sensing at least the position of the arms primary and secondary, and outlets able to act on means for controlling the position of these arms.
  • This calculator may include an entry in conjunction with means for sensing the position of the tool and an outlet able to act on position control means of this one.
  • the computer will include means for recording and storing the values provided by the sensors during a movement and means of reading these values and reproducing them by means for controlling the position of the arms.
  • a carrier 1 conforms to the prior art which, so schematic, is provided on its front face with a 3 'charger device.
  • This charger device is consisting of two parallel arms 5 'which are bent and are thus formed of a first part 5'a which, in loader low position, occupies one position substantially horizontal, and a second part 5'b integral with the first and which is inclined downwards relative to it, and at the end of which is arranged a working tool, namely a 7 'bucket in the present mode shown.
  • the 5 'arms are likely to occupy two positions extremes, namely a low position in which the free end of each arm 5 ′ occupies a position H and a high position in which the free end of this same arm occupies position A, switching from one to the other of these extreme positions being obtained by describing an arc C.
  • FIG 2 there is shown the same machine of handling 1 equipped with a following loader device 3 the invention which achieves the same maximum height A as that shown in Figure 1 with a clearance much lower frontal, even nonexistent, allowing to reduce in a particularly substantial way the overhang exerted by the load on the carrier.
  • the charger device 3 shown in Figure 3 thus comprises a connection plate 2 which is connected handling equipment, not shown in the drawing. he comprises a main arm 5a, which is mounted articulated by one of its ends around a joint 9 of the plate 2.
  • the device comprises a secondary arm 5b which is articulated by one of its ends on the end free of the main arm 5a around a joint 11.
  • the free end of the secondary arm 5b has a joint 13 which receives a working tool, here a bucket 7.
  • the means for rotating the main arm 5a and secondary 5b are constituted by jacks Hydraulic. So the angular positioning of the arm main 5a with respect to plate 2 is provided by a hydraulic cylinder 17 whose two ends are respectively secured to a joint 16 of the plate 2 and an articulation 18 of a second plate 19 fixed on the main arm 5a. Angular positioning of the secondary arm 5b, relative to the main arm 5a, is provided by a second hydraulic cylinder 21 one end of which is integral with the plate 19 and the other end is secured to a plate 23 fixed on arm 5b.
  • the device also includes means allowing to position the bucket 7 angularly so, for example, to keep it in a fixed horizontal position determined when the charger switches from low position to high position and vice versa.
  • These means are constituted by a third hydraulic cylinder 22 one end of which is integral with the secondary arm 5b and the other end attacks connecting rod means secured to the bucket 7.
  • the device comprises a hydraulic distributor 25 which controls the hydraulic fluid supply (figure 6) of the three cylinders 17, 21, 22. To do this, distributor 25 is connected to a feed pump disposed on the carrier 1 by a pipe 27 and a connector 29.
  • the distributor 25 is connected to each cylinder by a double pipe, it is thus connected to the jack 17 by the double pipe 17 ', to cylinder 21 by double pipe 21 'and to jack 22 by the double pipe 22 '.
  • the distributor on arm 5b we can have pipelines of the same length as it is for pipes 21 'and 22', which is interesting in terms of maintenance of the machine.
  • the hydraulic distributor 25 is controlled by a computer 28 which is connected to sensors which allow, at any time, to know the positions of the two arms 5a and 5b and of the working tool such as the bucket 7.
  • a computer 28 which is connected to sensors which allow, at any time, to know the positions of the two arms 5a and 5b and of the working tool such as the bucket 7.
  • sensors which allow, at any time, to know the positions of the two arms 5a and 5b and of the working tool such as the bucket 7.
  • Figure 3 the different parameters that these sensors are responsible for measure and send to the calculator.
  • a first sensor 30 which measures the angle ⁇ formed by the main arm 5a with plate 2 and more precisely the angle formed by the axis xx 'connecting the joints 9 and 11 and an arbitrary axis of the plate 2 and in particular an axis yy 'connecting joints 9 and 16.
  • a second sensor 32 measures the angle ⁇ formed by the main arm 5a and secondary 5b and more specifically the angle formed by the axis xx 'and an axis zz' connecting joint 11 to joint 13.
  • a third sensor 34 measures the angle formed by the secondary arm 5b with the working tool, and more precisely by the axis zz ' of this arm with a reference axis uu 'of the bucket 7.
  • the computer 28 may include means of recording and storing values taken by the sensors 30, 32, 34 during a movement, and means of reading these values and reproducing of these by the control means of the arms so as to be able, on request, to reproduce this or that type of previously recorded movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
EP01403112A 2000-12-04 2001-12-04 Frontladeeinrichtung für ein Trägerfahrzeug Withdrawn EP1211357A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0015677 2000-12-04
FR0015677A FR2817574B1 (fr) 2000-12-04 2000-12-04 Dispositif chargeur frontal pour engin porteur

Publications (1)

Publication Number Publication Date
EP1211357A1 true EP1211357A1 (de) 2002-06-05

Family

ID=8857198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01403112A Withdrawn EP1211357A1 (de) 2000-12-04 2001-12-04 Frontladeeinrichtung für ein Trägerfahrzeug

Country Status (2)

Country Link
EP (1) EP1211357A1 (de)
FR (1) FR2817574B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009091473A1 (en) * 2008-01-15 2009-07-23 Trimble Navigation Limited Loader implement elevation control system
WO2014149125A1 (en) * 2013-03-15 2014-09-25 Rodney Koch Lift arm structure with an articulated knee portion for a power machine
US9267262B2 (en) 2014-06-06 2016-02-23 Caterpillar Sarl Lift arm linkage with extension cylinder
US10392773B2 (en) * 2016-08-17 2019-08-27 Caterpillar Sarl Linkage assembly for machine
IT202000024499A1 (it) * 2020-10-16 2021-01-16 Vincenzo Autieri Dispositivo amovibile ottimizzato per una macchina trattrice

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864852A (en) * 1973-03-27 1975-02-11 Btr Industries Ltd Hydraulic oscillator for digging bucket teeth
US3905500A (en) * 1973-03-09 1975-09-16 Poclain Sa Public works machine having a safety device for the manoeuvre of its working equipment
JPS57130638A (en) * 1981-02-05 1982-08-13 Hitachi Constr Mach Co Ltd Controller for bucket angle of loading and construction machinery
US4377043A (en) * 1980-01-07 1983-03-22 Kabushiki Kaisha Komatsu Seisakusho Semi-automatic hydraulic excavator
JPS60133127A (ja) * 1983-12-22 1985-07-16 Hitachi Constr Mach Co Ltd ロ−デイングシヨベルのバケツト角制御方法
US4889466A (en) * 1985-07-26 1989-12-26 Kabushiki Kaisha Komatsu Seisakusho Control device for a power shovel
EP0990739A1 (de) * 1998-03-18 2000-04-05 Hitachi Construction Machinery Co., Ltd. Automatisch gesteuerter bagger und steinbrecheinrichtung die damit ausgerüstet ist
WO2001057324A1 (en) * 2000-02-01 2001-08-09 Clark Equipment Company Attachment control device for power machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3572531A (en) * 1969-07-11 1971-03-30 Eaton Yale & Towne Excavator assembly
US3658202A (en) * 1970-06-01 1972-04-25 Caterpillar Tractor Co Loader with improved stability and increased reach
DE2338426A1 (de) * 1973-07-28 1975-02-13 Frisch Gmbh Transport-schaufelradlader
JPS5681741A (en) * 1979-12-07 1981-07-04 Hitachi Constr Mach Co Ltd Locus controlling device of working tool such as oil pressure shovel
JPS57130639A (en) * 1981-02-05 1982-08-13 Hitachi Constr Mach Co Ltd Controller for front attitude of oil-pressure shovel, etc.
DE4219720A1 (de) * 1992-06-17 1993-12-23 Hausherr & Soehne Rudolf Senkvorrichtung zum Einsatz in untertägigen Strecken

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905500A (en) * 1973-03-09 1975-09-16 Poclain Sa Public works machine having a safety device for the manoeuvre of its working equipment
US3864852A (en) * 1973-03-27 1975-02-11 Btr Industries Ltd Hydraulic oscillator for digging bucket teeth
US4377043A (en) * 1980-01-07 1983-03-22 Kabushiki Kaisha Komatsu Seisakusho Semi-automatic hydraulic excavator
JPS57130638A (en) * 1981-02-05 1982-08-13 Hitachi Constr Mach Co Ltd Controller for bucket angle of loading and construction machinery
JPS60133127A (ja) * 1983-12-22 1985-07-16 Hitachi Constr Mach Co Ltd ロ−デイングシヨベルのバケツト角制御方法
US4889466A (en) * 1985-07-26 1989-12-26 Kabushiki Kaisha Komatsu Seisakusho Control device for a power shovel
EP0990739A1 (de) * 1998-03-18 2000-04-05 Hitachi Construction Machinery Co., Ltd. Automatisch gesteuerter bagger und steinbrecheinrichtung die damit ausgerüstet ist
WO2001057324A1 (en) * 2000-02-01 2001-08-09 Clark Equipment Company Attachment control device for power machine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 228 (M - 171) 13 November 1982 (1982-11-13) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 294 (M - 431) 20 November 1985 (1985-11-20) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009091473A1 (en) * 2008-01-15 2009-07-23 Trimble Navigation Limited Loader implement elevation control system
US8091256B2 (en) 2008-01-15 2012-01-10 Trimble Navigation Limited Loader elevation control system
CN101918645B (zh) * 2008-01-15 2013-08-21 天宝导航有限公司 装载机高度控制***
WO2014149125A1 (en) * 2013-03-15 2014-09-25 Rodney Koch Lift arm structure with an articulated knee portion for a power machine
US9267262B2 (en) 2014-06-06 2016-02-23 Caterpillar Sarl Lift arm linkage with extension cylinder
US10392773B2 (en) * 2016-08-17 2019-08-27 Caterpillar Sarl Linkage assembly for machine
IT202000024499A1 (it) * 2020-10-16 2021-01-16 Vincenzo Autieri Dispositivo amovibile ottimizzato per una macchina trattrice

Also Published As

Publication number Publication date
FR2817574B1 (fr) 2003-10-10
FR2817574A1 (fr) 2002-06-07

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