EP0370892B1 - Dispositif de commande d'un engin de travaux publics - Google Patents

Dispositif de commande d'un engin de travaux publics Download PDF

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Publication number
EP0370892B1
EP0370892B1 EP89403201A EP89403201A EP0370892B1 EP 0370892 B1 EP0370892 B1 EP 0370892B1 EP 89403201 A EP89403201 A EP 89403201A EP 89403201 A EP89403201 A EP 89403201A EP 0370892 B1 EP0370892 B1 EP 0370892B1
Authority
EP
European Patent Office
Prior art keywords
equipment
seat
control
control device
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.)
Expired - Lifetime
Application number
EP89403201A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0370892A1 (fr
Inventor
André Tatara
Robert Mc Caig
José Andiano
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.)
Case Poclain
Original Assignee
Case Poclain
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9372053&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0370892(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Case Poclain filed Critical Case Poclain
Priority to AT89403201T priority Critical patent/ATE77670T1/de
Publication of EP0370892A1 publication Critical patent/EP0370892A1/fr
Application granted granted Critical
Publication of EP0370892B1 publication Critical patent/EP0370892B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine
    • 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
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins
    • 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
    • E02F9/2004—Control mechanisms, e.g. control levers
    • E02F9/2012—Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation

Definitions

  • backhoe loaders comprising two working equipment, hydraulically controlled, from a single control station.
  • the equipment is arranged at the two longitudinal ends of the chassis of the machine, itself provided with driving and / or steering wheels.
  • One of the equipment allowing the work of the earth, and in particular the digging of trenches, requires the immobilization of the machine for its use.
  • the loading equipment requires the operator to drive the machine, since the materials are collected in a bucket before being discharged into a transport vehicle.
  • the control station of the machine is therefore equipped with two groups of levers or the like, corresponding to each of the pieces of equipment, and the operator is seated on a swivel seat, mounted on the platform of the machine.
  • the swivel seat allows the operator to easily access each of the control groups, and in particular the machine's steering wheel when it is necessary to use the loading equipment.
  • the loading equipment must be able to be controlled by one hand, the other being used for driving the machine.
  • excavators comprising a turret supporting a single work equipment and pivotally mounted on a chassis provided with displacement members, such as wheels or tracks.
  • the control station of the machine is fixed on the pivoting turret, and the operator generally has remote manipulators allowing respectively to control the work equipment or the movement of the machine.
  • the object of the present invention is to improve the conditions of use of machines comprising two working equipment, such as backhoe loaders and, to this end, provides an improved control device.
  • the remote control manipulators of the actuator control valves are mounted on the pivoting part of the operator's seat, and preferably arranged at the ends of the armrests of said seat.
  • a transmission known in itself, constituted by a plurality of control pipes connecting respectively each manipulator and the control valves of the cylinders of the elements of at least one piece of equipment. These pipes are divided into two groups corresponding respectively to the equipment and, for each of the groups, the transmission comprises an "all or nothing" switch whose movable member is slaved to the position of the pivoting part of the operator's seat.
  • the transmission can be either of the electric type, or of the hydraulic or pneumatic type, since its role is only to allow the control, that is to say partial or total opening, of the valves actuator control.
  • the latter as is known, are supplied by a hydraulic fluid under high pressure, the flow rate of which is regulated by the opening of the control valves.
  • the transmission pipes are therefore either electric cables or conduits conveying a control fluid, and the control valves are themselves, either solenoid valves or valves whose opening is controlled hydraulically or pneumatically.
  • the "all or nothing" switch arranged in the transmission will be, as the case may be, a multipolar electric switch whose movable contacts are slaved to the position of the pivoting part of the operator's seat or, on the contrary, a dispenser whose mobile drawer, slaved to the operator's seat position, completely closes or opens the ducts connecting the manipulators to the control valves.
  • the control station comprises a seat 1 pivotally mounted on the platform of a public works machine comprising two work equipment schematically and designated by the general references A and B.
  • the seat 1 is oriented towards the equipment A of the "backhoe” type and can at will be oriented towards the equipment B of the "loader” type, by rotation of 180 ° according to the arrow F, around its pivot axis 2.
  • remote control manipulators 5 and 6 are arranged. They allow, under conditions which will be specified below, the control of various elements of the work equipment A and B, that is to say hydraulic cylinders 7, 8, 9 and 10 of equipment A and cylinders 11 and 12 of equipment B.
  • Each of these cylinders is supplied with pressurized hydraulic fluid, respectively by the control valves 13, 14, 15 and 16 for equipment A, and 17 and 18 for equipment B.
  • the opening, possibly gradual, of each of these valves, is controlled by the operator when he acts on the remote control manipulators 5 and 6.
  • an appropriate transmission is provided between each of the manipulators and the control valves, this transmission being of the electrical type and the valves 13 to 18 being of the electrovalve type.
  • Electrical lines 19 and 20 connect the electrovalves 13 and 14 of equipment A to the manipulator 5, while lines 21 and 22 connect the electrovalves 15 and 16 of equipment A to the manipulator 6.
  • the latter are also connected to solenoid valves 17 and 18 of equipment B by electrical lines 23 and 24.
  • the movable contacts 25 a ensure the continuity of the pipes 19 to 22 when the seat 1 is in its extreme position co corresponding to the use of equipment A. Under the same conditions, the movable contacts 26 a are open, in principle prohibiting any control of the valves 17 and 18 of equipment B.
  • the seat 1 pivots according to the arrow F to come into its second extreme position corresponding to the use of the equipment B, the movable contacts 25 a and 26 a are brought into their position shown in dotted lines in the drawing , thanks to their movable actuating members 27 and 28 whose movement is controlled by the servo line 29 at the position of the seat 1.
  • the equipment A cannot no longer be used.
  • the two manipulators 5 and 6 are used by the operator to control the various elements of the equipment A.
  • the manipulator 6 is connected to the solenoid valves 17 and 18 of the equipment, the manipulator 5 being on the contrary completely neutralized.
  • the operator's left hand is available for other controls of the machine, and in particular for driving it. This is particularly advantageous if the equipment B is, as indicated, of the "charger" type.
  • the lines 21 and 22 of the equipment A and the lines 23 and 24 of the equipment B are connected to the same manipulator 6. It will be advantageous, to facilitate the use of the machine, that in the wherever possible, the pipes of the two devices connected to the same manipulator correspond to similar or identical elements on each of the devices. For example, it will be noted that the two pipes 22 and 24 allowing the control of the solenoid valves 16 and 17 are connected to the manipulator 6; in fact, they correspond to the same element on each piece of equipment, in this case the bucket.
  • At least one of the equipment A and B can be used, even if the seat 1 is not in one of its extreme positions.
  • the equipment A for example, can be used, not only when the position of the seat 1 corresponds to the extreme position shown in the drawing, but also when it is in an intermediate position between this extreme position and the other extreme position corresponding to the use of equipment B.
  • these two extreme positions are angularly distant by 180 °, but this value is in no way mandatory.
  • the mechanical members included in the control line 29 will make it possible to predetermine, for at least one item of equipment, a position of the seat 1 below which this equipment may be used. It will in fact be advantageous, at least as far as the equipment A is concerned, for this predetermined position to be very close to the extreme position corresponding to the normal conditions of use of the equipment B.
  • the seat 1 may be rotated by at least 150 °, from its position shown in the drawing before the control line 29 controls the passage of the movable contacts 25 a and 26 a from their position in solid lines to their position in dotted lines .
  • an auxiliary control 30 is provided, preferably arranged on one of the armrests of the seat 1, making it possible, via a transmission shown diagrammatically at 31, to cancel the effect of the opening pipes 23 and 24.
  • branches 32 and 33 which are connected on either side of the switch 26.
  • an auxiliary switch 34 whose movable contacts 34 a are normally in the open position, shown in solid lines in the drawing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Contacts (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Servomotors (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP89403201A 1988-11-21 1989-11-21 Dispositif de commande d'un engin de travaux publics Expired - Lifetime EP0370892B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89403201T ATE77670T1 (de) 1988-11-21 1989-11-21 Steuervorrichtung fuer eine erdbewegungsmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815125 1988-11-21
FR8815125A FR2639384B1 (fr) 1988-11-21 1988-11-21 Dispositif de commande d'un engin de travaux publics

Publications (2)

Publication Number Publication Date
EP0370892A1 EP0370892A1 (fr) 1990-05-30
EP0370892B1 true EP0370892B1 (fr) 1992-06-24

Family

ID=9372053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403201A Expired - Lifetime EP0370892B1 (fr) 1988-11-21 1989-11-21 Dispositif de commande d'un engin de travaux publics

Country Status (7)

Country Link
US (2) US4934462A (enrdf_load_stackoverflow)
EP (1) EP0370892B1 (enrdf_load_stackoverflow)
AT (1) ATE77670T1 (enrdf_load_stackoverflow)
DE (1) DE68901917T2 (enrdf_load_stackoverflow)
ES (1) ES2033543T3 (enrdf_load_stackoverflow)
FR (1) FR2639384B1 (enrdf_load_stackoverflow)
GR (1) GR3005412T3 (enrdf_load_stackoverflow)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5584346A (en) * 1992-07-27 1996-12-17 Komatsu Est Corp. Control system for a motor grader
KR950001445A (ko) * 1993-06-30 1995-01-03 경주현 굴삭기의 스윙, 붐의 속도비 유지방법
US5377777A (en) * 1993-12-21 1995-01-03 Case Corporation Apparatus and method for signalling coincident machine conditions
US5446980A (en) * 1994-03-23 1995-09-05 Caterpillar Inc. Automatic excavation control system and method
US5835867A (en) * 1996-05-02 1998-11-10 Chrysler Corporation Base plate for robotic system for automated durability road (ADR) facility
JP3608900B2 (ja) * 1997-03-10 2005-01-12 新キャタピラー三菱株式会社 建設機械の制御方法および制御装置
US6430850B1 (en) 2000-07-25 2002-08-13 Deere & Company Seat switch activated pump
US20030010196A1 (en) * 2001-07-13 2003-01-16 Smith Ellis Junior Hydraulic system diverter mechanism for single lever control of a utility vehicle
GB2385111B (en) * 2002-02-08 2006-01-18 Bamford Excavators Ltd Control apparatus
FR2840368B1 (fr) * 2002-05-30 2004-09-10 Groupe Mecalac Dispositif electro-hydraulique et engin de travaux publics ainsi equipe
US7032703B2 (en) 2002-06-17 2006-04-25 Caterpillar Inc. Operator control station for controlling different work machines
JP3953382B2 (ja) * 2002-08-06 2007-08-08 株式会社クボタ 作業機のエンジン自動停止解除構造
US6643577B1 (en) * 2002-08-22 2003-11-04 Caterpillar Inc Operator control station and method for a work machine having more than one function
US6694240B1 (en) 2002-08-29 2004-02-17 Caterpillar Inc Control system for and method of operating a work machine
WO2005035882A2 (en) * 2003-10-03 2005-04-21 The Charles Machine Works, Inc. Multi-function work machine
US7036248B2 (en) * 2003-10-25 2006-05-02 Deere & Company Pattern select valve for control levers of a title work vehicle
US7017674B2 (en) * 2003-11-17 2006-03-28 Caterpillar Inc. Method of changing operating characteristics of an implement
US7283903B2 (en) * 2004-04-01 2007-10-16 Deere & Company Enabling system for an implement controller
DE602004023603D1 (de) * 2004-08-19 2009-11-26 Komatsu Utility Europe Spa Baggerlader
US20070209356A1 (en) * 2006-03-10 2007-09-13 Graeve Joshua D Method for providing priority to steering wheel on machines with steering wheel and joystick
US7784581B1 (en) 2006-09-14 2010-08-31 Deere & Company Machine control interlocks for an electrohydraulically controlled vehicle
US7681686B1 (en) 2006-09-14 2010-03-23 Deere & Company Operator control for simultaneous movement of a multifunction machine
US7921005B2 (en) * 2006-12-28 2011-04-05 3M Innovative Properties Company Method for selecting conductors of an overhead power transmission line
US20090018745A1 (en) * 2006-12-31 2009-01-15 Caterpillar Inc System and method for operating a machine
GB0710155D0 (en) * 2007-05-26 2007-07-04 Bamford Excavators Ltd Working machine
US7857086B2 (en) * 2008-06-24 2010-12-28 Yanmar Co., Ltd. Working vehicle
US7950492B2 (en) * 2008-10-30 2011-05-31 Caterpillar Forest Products Inc. Wiper control arrangement
DE102009012050A1 (de) 2009-03-06 2010-09-09 Lst Gmbh Anbaugerät
EP2635456B1 (en) 2010-11-05 2018-02-07 Volvo Construction Equipment AB Construction equipment machine with improved controller ergonomics
JP5498442B2 (ja) * 2011-06-24 2014-05-21 株式会社小松製作所 作業車両、作業車両用表示装置、および作業車両用表示装置の制御方法
US8528684B2 (en) * 2011-11-30 2013-09-10 Deere & Company Charge pressure reduction circuit for improved transmission efficiency
US9441347B2 (en) 2013-08-05 2016-09-13 Deere & Company Methods and apparatus to control a dual function work machine
JP6220961B2 (ja) * 2014-04-09 2017-10-25 株式会社日立製作所 作業機械の遠隔操縦システム
GB2525190A (en) * 2014-04-14 2015-10-21 Jc Bamford Excavators Ltd A vehicle
JP6483584B2 (ja) * 2015-09-30 2019-03-13 ヤンマー株式会社 油圧駆動建設機械
DE102017009249B4 (de) * 2017-01-02 2020-09-17 Bomag Gmbh Kleinfertiger sowie Verfahren zum Betrieb eines Kleinfertigers
WO2019131721A1 (ja) * 2017-12-27 2019-07-04 株式会社クボタ 作業機及び作業機の製造方法
JP7281869B2 (ja) * 2018-03-14 2023-05-26 株式会社小松製作所 作業車両
JP7195872B2 (ja) * 2018-10-26 2022-12-26 株式会社小松製作所 作業車両
GB2579075B (en) * 2018-11-19 2021-06-16 Caterpillar Inc Work machine with sensor enabled user control
US11613180B2 (en) * 2020-03-06 2023-03-28 Caterpillar Paving Products Inc. Machine centric control for compaction machines
KR102294109B1 (ko) * 2020-12-21 2021-08-25 안국수 건설장비의 다관절 작동형 콘솔박스

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH262372A (de) * 1947-12-13 1949-06-30 Truninger Paul Einrichtung zur hydraulischen Betätigung von Maschinenteilen.
US2846094A (en) * 1954-06-22 1958-08-05 John S Pilch Tractor operated trencher
NL260687A (enrdf_load_stackoverflow) * 1961-01-31
US3257013A (en) * 1963-06-13 1966-06-21 Wain Roy Corp Earth handling vehicle
DE2546832B2 (de) * 1975-10-18 1977-12-15 Xaver Fendt & Co, 8952 Marktoberdorf Anordnung der betaetigungseinrichtungen an einem fahrerstand eines in eine haupt- und eine gegenfahrtrichtung fahrbaren fahrzeugs
US4026379A (en) * 1975-11-26 1977-05-31 International Harvester Company Multi-positional seat having a following instrument panel
DE2705980A1 (de) * 1977-02-12 1978-08-17 Fendt & Co Xaver Bedienungsstand fuer land-, forst- und/oder bauwirtschaftlich nutzbare fahrzeuge, insbesondere schlepper
US4372341A (en) * 1980-05-28 1983-02-08 Versatile Cornat Corporation Rotary switch valve
FR2581404B1 (fr) * 1985-05-03 1987-07-10 Poncin Gilles Engin de terrassement tous terrains
ZA866246B (en) * 1985-08-27 1987-04-29 Mim Holdings Ltd Bi-directional vehicle control station
DE3703297A1 (de) * 1987-02-04 1988-08-18 Fendt & Co Xaver Hydraulikanlage zur betaetigung von arbeitsgeraeten an fahrzeugen
JPS63251530A (ja) * 1987-04-03 1988-10-19 Kubota Ltd 作業機の安全装置

Also Published As

Publication number Publication date
FR2639384B1 (fr) 1991-02-22
DE68901917T2 (de) 1993-01-07
US5092408A (en) 1992-03-03
EP0370892A1 (fr) 1990-05-30
ATE77670T1 (de) 1992-07-15
DE68901917D1 (de) 1992-07-30
US4934462A (en) 1990-06-19
GR3005412T3 (enrdf_load_stackoverflow) 1993-05-24
ES2033543T3 (es) 1993-03-16
FR2639384A1 (fr) 1990-05-25

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