EP0989244A1 - Baumaschine mit einem schwenkbaren Oberwagen - Google Patents

Baumaschine mit einem schwenkbaren Oberwagen Download PDF

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Publication number
EP0989244A1
EP0989244A1 EP99420195A EP99420195A EP0989244A1 EP 0989244 A1 EP0989244 A1 EP 0989244A1 EP 99420195 A EP99420195 A EP 99420195A EP 99420195 A EP99420195 A EP 99420195A EP 0989244 A1 EP0989244 A1 EP 0989244A1
Authority
EP
European Patent Office
Prior art keywords
turret
counterweight
technical compartment
public works
compartment
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
EP99420195A
Other languages
English (en)
French (fr)
Other versions
EP0989244B1 (de
Inventor
Henri Marchetta
Jacques Fournier
André Maslankiewicz
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.)
Volvo Compact Equipment SAS
Original Assignee
Volvo Compact Equipment SAS
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 Volvo Compact Equipment SAS filed Critical Volvo Compact Equipment SAS
Publication of EP0989244A1 publication Critical patent/EP0989244A1/de
Application granted granted Critical
Publication of EP0989244B1 publication Critical patent/EP0989244B1/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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0891—Lids or bonnets or doors or details thereof
    • 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
    • E02F9/18—Counterweights

Definitions

  • the invention relates to the field of public works machinery, and more precisely vehicles with a self-propelled chassis on which is mounted a swivel turret carrying work equipment.
  • the turret has a rearward technical compartment in which the heat engine is located, all of the pumps intended to supply the various hydraulic circuits, as well as the various auxiliary elements of the engine such as the cooling radiator and among other things the electric storage battery.
  • the rear of this turret also has a counterweight intended to compensate for the weight and the efforts undergone by the equipment of work located on the opposite side of the turret. Indeed, when the loads transported are important, it is necessary to balance the forces exerted on the turret.
  • this counterweight also performs the function of a shield protection of the rear of the turret.
  • the rear part of the turret is outside the field of vision of the driver when he performs the turret rotation maneuvers with work equipment.
  • one of the problems which the invention proposes to solve is that of the incompatibility between the protection needs of the rear area of the turret, and accessibility of the technical compartment for maintenance operations.
  • the invention therefore relates to a public works machine comprising a chassis on which a turret is mounted, said turret having a forward arm work, and towards the rear a technical compartment and at least one counterweight.
  • This machine is characterized in that the counterweight (s) are located at the rear wings of the turret and are able to pivot around a substantially vertical axis, so as to form access doors to the technical compartment.
  • the invention consists in making a counterweight which is no longer solid and fixed as in the Prior Art, but on the contrary removable so as not to block access to the technical compartment through the area in which it is located.
  • the pivot axis of the counterweight is located on the side face of the turret, so when the counterweights forming an access door to the technical compartment are deployed, the entire rear of the turret is clear, which allows the opening of the main cover located at middle of the rear face of the turret, to give direct and unobstructed access to the entire technical compartment.
  • each counterweight has a portion extending above the level of the hinge hinge with the turret.
  • the counterweights forming access doors have through lights intended to serve as air vents on the technical compartment.
  • Figure 1 is a perspective view of an example of a machine according to the invention seen from three quarters behind.
  • Figure 2 is a top view of the turret, shown in rear view at Figure 3, side view in Figure 4.
  • Figure 5 is a detail view from above showing a conforming counterweight to the invention in an open position, giving access to the technical compartment.
  • a public works machine has a self-driving chassis (2) and a turret (3) pivotally mounted on the chassis (2).
  • the invention is not limited to the types of gear as illustrated in Figure 1, but can adapt to a large number of public works machines, that either excavators, loaders or others, mounted on tracks or tires, of very different sizes.
  • the turret (3) comprises in the front part a working equipment (4) formed in the form illustrated by an articulated working arm (5) having at its end of a bucket (6).
  • This turret (3) also has a cabin (7) with inside which the driver takes place to carry out the different maneuvers.
  • the turret (3) has an engine compartment (10) which contains the engine, for example in the central part.
  • the radiator of cooling of the heat engine necessary for the proper functioning of the machine, and on the other hand all the pumps and distributors included in the hydraulic system of the machine.
  • one of the wings also has the battery electric accumulators not shown.
  • the rear part of the turret (3) also includes a shield (20) intended to ensure the stability of the machine and to protect the turret, in particular the technical compartment (10).
  • This shield is broken down into three parts, namely a central part (21) which is fixed and which constitutes the extension of the base (22) from the turret.
  • the shield also includes the two counterweights (23,24) object of the invention.
  • the central part (21) of the shield can be mounted articulated along a horizontal axis.
  • the parts of the shield situated at the level of the wings rear of the turret constitute counterweights which are pivotally mounted by relative to a vertical axis (26,27).
  • this vertical axis is materialized by means of a hinge (28,29) located on the lateral faces (30,31) of the turret, substantially at the foremost level of the technical compartment.
  • each of these counterweights has a shape substantially square to form the rear angle of the turret.
  • the external shape of each of these counterweights can be curved to ensure an aesthetic exterior appearance.
  • Each counterweight (23,24) has a first part (35) fixed to the hinge, located substantially at the base (22) of the turret. It is extends by a second part (36) extending backwards and upwards to constitute a maximum area shield.
  • each shield has openings through (40,41) to allow better ventilation of the compartment technical.
  • these lights (40,41) are located in planes horizontal and extend over a large part of the length of the counterweight (23).
  • the counterweight (23) itself is secured to the hinge (28) by screwing (37) so as to be more easily interchangeable in the event that it becomes deformed following an impact.
  • Maintaining the counterweight (23) forming an access door in the closed position is provided by any known means, for example by a screwing located at its end (40).
  • the geometry of the end (36) of the counterweight (23) located on the face rear of the turret (3), has a recess intended to receive the edge of the cover (42) covering the top of the technical compartment (10). In others terms, when the cover (42) is closed, it covers the top of the counterweight (23).
  • FIG. 2 illustrates a turret seen from above in which one of the counterweight (23) forming an access door is locked in the closed position, while the other (23) is open.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Supply And Installment Of Electrical Components (AREA)
  • Body Structure For Vehicles (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Soil Working Implements (AREA)
  • Jib Cranes (AREA)
EP99420195A 1998-09-22 1999-09-14 Baumaschine mit einem schwenkbaren Oberwagen Expired - Lifetime EP0989244B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9811977A FR2783538B1 (fr) 1998-09-22 1998-09-22 Engin de travaux publics sur lequel est montee une tourelle
FR9811977 1998-09-22

Publications (2)

Publication Number Publication Date
EP0989244A1 true EP0989244A1 (de) 2000-03-29
EP0989244B1 EP0989244B1 (de) 2005-11-16

Family

ID=9530821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99420195A Expired - Lifetime EP0989244B1 (de) 1998-09-22 1999-09-14 Baumaschine mit einem schwenkbaren Oberwagen

Country Status (4)

Country Link
EP (1) EP0989244B1 (de)
AT (1) ATE310129T1 (de)
DE (2) DE69928341T2 (de)
FR (1) FR2783538B1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448500A1 (fr) * 1979-02-07 1980-09-05 Audureau Sa Dispositif d'equilibrage d'un engin comportant un appareil de levage d'une charge en porte a faux
US4322107A (en) * 1979-05-11 1982-03-30 Nissan Motor Company, Limited Structure for mounting cover of controller in battery fork lift
EP0743401A2 (de) * 1995-05-16 1996-11-20 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Haubenanlage für Erdbewegungsmaschine
EP0806525A2 (de) * 1996-05-09 1997-11-12 Kabushiki Kaisha Kobe Seiko Sho Hydraulische Arbeitsmaschine
WO1997043492A1 (en) * 1996-05-15 1997-11-20 Komatsu Ltd. Protector for power shovel
EP0854241A1 (de) * 1996-04-11 1998-07-22 Shin Caterpillar Mitsubishi Ltd. Arbeitsmaschine mit drehendem körper
JPH10338946A (ja) * 1997-06-06 1998-12-22 Kubota Corp バックホウ
JPH1193219A (ja) * 1997-09-24 1999-04-06 Shin Caterpillar Mitsubishi Ltd 油圧ショベルのカウンタウエイト装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448500A1 (fr) * 1979-02-07 1980-09-05 Audureau Sa Dispositif d'equilibrage d'un engin comportant un appareil de levage d'une charge en porte a faux
US4322107A (en) * 1979-05-11 1982-03-30 Nissan Motor Company, Limited Structure for mounting cover of controller in battery fork lift
EP0743401A2 (de) * 1995-05-16 1996-11-20 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Haubenanlage für Erdbewegungsmaschine
EP0854241A1 (de) * 1996-04-11 1998-07-22 Shin Caterpillar Mitsubishi Ltd. Arbeitsmaschine mit drehendem körper
EP0806525A2 (de) * 1996-05-09 1997-11-12 Kabushiki Kaisha Kobe Seiko Sho Hydraulische Arbeitsmaschine
WO1997043492A1 (en) * 1996-05-15 1997-11-20 Komatsu Ltd. Protector for power shovel
JPH10338946A (ja) * 1997-06-06 1998-12-22 Kubota Corp バックホウ
JPH1193219A (ja) * 1997-09-24 1999-04-06 Shin Caterpillar Mitsubishi Ltd 油圧ショベルのカウンタウエイト装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 03 31 March 1999 (1999-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30) *

Also Published As

Publication number Publication date
FR2783538A1 (fr) 2000-03-24
FR2783538B1 (fr) 2000-10-20
DE989244T1 (de) 2000-11-02
EP0989244B1 (de) 2005-11-16
ATE310129T1 (de) 2005-12-15
DE69928341T2 (de) 2006-06-01
DE69928341D1 (de) 2005-12-22

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