EP0989244B1 - Engin de travaux publics équipé d' une tourelle - Google Patents
Engin de travaux publics équipé d' une tourelle Download PDFInfo
- Publication number
- EP0989244B1 EP0989244B1 EP99420195A EP99420195A EP0989244B1 EP 0989244 B1 EP0989244 B1 EP 0989244B1 EP 99420195 A EP99420195 A EP 99420195A EP 99420195 A EP99420195 A EP 99420195A EP 0989244 B1 EP0989244 B1 EP 0989244B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- counterweight
- turret
- technical compartment
- superstructure
- counterweights
- 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
Links
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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 machines with a self-propelled chassis on which is mounted a swivel turret carrying work equipment.
- the turret has a rearward orientation technical compartment in which the engine is located, all pumps intended to supply the different hydraulic circuits, as well as the different auxiliary elements of the engine such as the cooling radiator and the battery of electric accumulators among others.
- the rear of this turret also includes a counterweight intended to compensate for the weight and the forces experienced by the arm and 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 exerts the shield function of protection of the rear of the turret.
- the rear part of the turret is outside the field of vision of the driver when the latter performs the turret rotation maneuvers with work equipment.
- one of the problems that 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 thus relates to a public works machine according to claim 1.
- the invention consists in producing a counterweight which is no longer solid and fixed as in the prior art, but on the contrary removable for not block access to the technical compartment by the zone in which it is implanted.
- the pivot axis of the counterweight is located on the side face of the turret, so when counterweights forming access door to the technical compartment are deployed, all the back of the turret is disengaged, allowing the opening of the main hood located at middle of the back of the turret, to give direct and clear access to the entire technical compartment.
- each counterweight has a portion extending above the level of the hinge hinge with the turret.
- the counterweight forming access doors have through lights intended to serve as air vents of the technical compartment.
- a public works machine has a self-driving frame (2) and a turret (3) pivotally mounted on the frame (2).
- the invention is not limited to the types of machines as illustrated in FIG. Figure 1, but can adapt to a large number of public works machinery, that whether shovels, loaders or other, mounted on crawlers or pneumatic, very different jigs.
- the turret (3) comprises in the front part of a work equipment (4) formed in the form illustrated by an articulated work arm (5) presenting to its end a bucket (6).
- This turret (3) also has a cabin (7) to inside which takes place the driver to perform the different maneuvers.
- the turret (3) has an engine compartment (10) which encloses the heat engine, for example in the central part.
- the radiator of thermal engine cooling necessary for the proper functioning of the machine, and secondly all the pumps and distributors included in the hydraulic circuit of the machine.
- one of the wings also includes the battery of electric accumulators not shown.
- the rear part of the turret (3) also has 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 portion (21) which is fixed and which constitutes the extension of the base (22) of the turret.
- the shield also includes the two counterweights (23,24) object of the invention.
- the central portion (21) of the shield can be mounted articulated along a horizontal axis.
- the parts of the shield located at the level of the wings rear of the turret constitute counterweights that 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 frontmost level of the technical compartment.
- each of these counterweights has a shape substantially square to form the rear angle of the turret.
- the outer shape of each of these counterweights can be curved to ensure an aesthetic exterior appearance.
- Each counterweight (23,24) has a first portion (35) attached to the hinge, located substantially at the base (22) of the turret. He is extended by a second portion (36) extending rearwardly and upwardly for constitute a shield of maximum area.
- each shield has openings through (40,41) to allow a 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 easier interchangeable in case it would be deformed following a shock.
- Holding in the closed position of the counterweight (23) forming an access door is provided by any known means, for example by a screwing located at its level. end (40).
- the geometry of the end (36) of the counterweight (23) lying on the face rear of the turret (3), has a recess for receiving the edge of the cover (42) covering the top of the technical compartment (10). In others, when the hood (42) is closed, it covers the top of the counterweight (23).
- FIG. 2 illustrates a turret viewed from above in which one of the counterweight (23) forming the 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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Soil Working Implements (AREA)
- Jib Cranes (AREA)
- Supply And Installment Of Electrical Components (AREA)
- Body Structure For Vehicles (AREA)
Description
Claims (4)
- Engin de travaux publics (1) comportant un châssis (2) sur lequel est montée une tourelle (3), ladite tourelle (3) présentant vers l'avant un bras de travail (4) articulé et vers l'arrière un compartiment technique (10) et au moins un contrepoids (21,23,24) localisé au niveau des ailes arrières (11,12) de la tourelle (3) , caractérisé en ce que le ou les contrepoids est/sont apte(s) à pivoter autour d'un axe sensiblement vertical (26,27), de sorte à former des portes d'accès au compartiment technique (10).
- Engin selon la revendication 1, caractérisé en ce que l'axe vertical (26,27) de pivotement du contrepoids (23,24) est situé sur la face (30,31) latérale de la tourelle (3).
- Engin selon la revendication 1, caractérisé en ce que chaque contrepoids présente une portion (36) s'étendant au-dessus du niveau de la charnière (28) d'articulation avec la tourelle (3).
- Engin selon la revendication 1, caractérisé en ce que les contrepoids (23,24) formant les portes d'accès présentent des lumières (40,41) traversantes destinées à servir d'ouïe d'aération du compartiment technique (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9811977 | 1998-09-22 | ||
| FR9811977A FR2783538B1 (fr) | 1998-09-22 | 1998-09-22 | Engin de travaux publics sur lequel est montee une tourelle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0989244A1 EP0989244A1 (fr) | 2000-03-29 |
| EP0989244B1 true EP0989244B1 (fr) | 2005-11-16 |
Family
ID=9530821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99420195A Expired - Lifetime EP0989244B1 (fr) | 1998-09-22 | 1999-09-14 | Engin de travaux publics équipé d' une tourelle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0989244B1 (fr) |
| AT (1) | ATE310129T1 (fr) |
| DE (2) | DE69928341T2 (fr) |
| FR (1) | FR2783538B1 (fr) |
Family Cites Families (8)
| 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 |
| JPS55161740U (fr) * | 1979-05-11 | 1980-11-20 | ||
| JP3572719B2 (ja) * | 1995-05-16 | 2004-10-06 | コベルコ建機株式会社 | 油圧作業機 |
| JP3078748B2 (ja) * | 1996-04-11 | 2000-08-21 | 新キャタピラー三菱株式会社 | 旋回体を備えた作業機械 |
| JP3510081B2 (ja) * | 1996-05-09 | 2004-03-22 | コベルコ建機株式会社 | 油圧作業機 |
| JPH09302722A (ja) * | 1996-05-15 | 1997-11-25 | Komatsu Ltd | パワーショベルのプロテクタ |
| 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 |
-
1998
- 1998-09-22 FR FR9811977A patent/FR2783538B1/fr not_active Expired - Fee Related
-
1999
- 1999-09-14 AT AT99420195T patent/ATE310129T1/de not_active IP Right Cessation
- 1999-09-14 EP EP99420195A patent/EP0989244B1/fr not_active Expired - Lifetime
- 1999-09-14 DE DE69928341T patent/DE69928341T2/de not_active Expired - Lifetime
- 1999-09-14 DE DE0989244T patent/DE989244T1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2783538B1 (fr) | 2000-10-20 |
| DE69928341D1 (de) | 2005-12-22 |
| DE69928341T2 (de) | 2006-06-01 |
| FR2783538A1 (fr) | 2000-03-24 |
| EP0989244A1 (fr) | 2000-03-29 |
| ATE310129T1 (de) | 2005-12-15 |
| DE989244T1 (de) | 2000-11-02 |
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