EP0318622A1 - Swivel grab bucket - Google Patents

Swivel grab bucket Download PDF

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Publication number
EP0318622A1
EP0318622A1 EP87440077A EP87440077A EP0318622A1 EP 0318622 A1 EP0318622 A1 EP 0318622A1 EP 87440077 A EP87440077 A EP 87440077A EP 87440077 A EP87440077 A EP 87440077A EP 0318622 A1 EP0318622 A1 EP 0318622A1
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EP
European Patent Office
Prior art keywords
parts
grab bucket
bucket
articulated
plane
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Withdrawn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
EP87440077A
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German (de)
French (fr)
Inventor
Gérard Stremez
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP87440077A priority Critical patent/EP0318622A1/en
Publication of EP0318622A1 publication Critical patent/EP0318622A1/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/02Bucket grabs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/12Grabs actuated by two or more ropes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/36Component parts
    • E02F3/40Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/36Component parts
    • E02F3/40Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/402Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/404Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors comprising two parts movable relative to each other, e.g. for gripping
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/36Component parts
    • E02F3/40Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

Sheet-metal grab bucket, characterised in that it is composed of two parts (1) and (2) fitting together in a transverse vertical mid-plane according to a cross-section of the grab bucket, said parts being articulated about an axis (8) arranged in said plane, the respective weights of the two parts laying them against one another so as to ensure sealing at the joint, and the four corners of said grab bucket having means (6) for connection to a cable-type control system intended for separating the two half-buckets in order to discharge their contents, said system comprising two winches so as also to ensure the lifting of the grab bucket. <IMAGE>

Description

La présente invention concerne une benne articulée destinée au stockage et à l'évacuation de matériaux.The present invention relates to an articulated bucket intended for the storage and evacuation of materials.

Dans le domaine des travaux publics, on utilise couramment des excavatrices dotées de bennes preneuses ou godets dont la fonction est de déplacer de la matière, soit en creusant dans la terre meuble, soit en la prélevant sur des tas préfaits. La quantité de matière enlevée correspond au volume du godet, qui déverse son contenu dans un container prévu à cet usage. Dans une forme classique, ces godets ont deux mâchoires articulées homologues qui emprisonnent un certain volume de matière avant déversement. Le cycle de fonctionnement comprend deux phases d'ouverture des mâchoires en début et fin de cycle, le reserrement de la pince intervenant uniquement lors du trajet avec la matière transportée.In the field of public works, excavators with clamshell buckets or buckets are commonly used, the function of which is to move material, either by digging in loose soil or by taking it from pre-made piles. The quantity of material removed corresponds to the volume of the bucket, which pours its content into a container provided for this purpose. In a conventional form, these buckets have two homologous articulated jaws which trap a certain volume of material before spillage. The operating cycle includes two phases of opening the jaws at the start and end of the cycle, the tightening of the clamp occurring only during the journey with the transported material.

Un tel dispositif présente des inconvénients à plusieurs égards :
- la quantité de matière déplacée à chaque cycle n'est pas très importante, la limitation venant du volume configuré par les mâchoires.
- les dents de chaque mâchoires serrent plus ou moins les gravats et autres déchets, ce qui peut présenter un danger important si ce sont des blocs lourds qui sont ainsi véhiculés.
- il est nécessaire, vu le faible volume déplacé, d'effectuer un nombre de déplacements en charge plus conséquent, et cela rend l'opération plus aléatoire et accroît les risques encourus.
Such a device has drawbacks to several ways:
- the amount of material displaced in each cycle is not very large, the limitation coming from the volume configured by the jaws.
- the teeth of each jaw more or less tighten rubble and other waste, which can present a significant danger if it is heavy blocks which are thus transported.
- it is necessary, given the small volume moved, to make a greater number of load movements, and this makes the operation more random and increases the risks involved.

Le dispositif suivant l'invention remédie à cela, en proposant une benne de grande contenance composée de deux parties articulées, disposant d'une grande capacité de stockage et qu'il est au surplus possible de déplacer et de vider. Il permet donc une augmentation sensible de la vitesse de travail tout en offrant une sécurité d'utilisation sans commune mesure avec les moyens utilisés actuellement.The device according to the invention remedies this, by proposing a large capacity bucket composed of two articulated parts, having a large storage capacity and which it is moreover possible to move and empty. It therefore allows a significant increase in working speed while offering safety in use that is far from the means currently used.

Il s'agit d'un container, de volume approximativement parallélépipédique et creux, sectionné en deux parties selon un plan vertical transversal, l'axe de pivotement de l'une des parties par rapport à l'autre se situant dans le même plan vertical transversal sur la partie supérieure des bords longitudinaux.It is a container, of approximately parallelepipedal and hollow volume, sectioned in two parts along a transverse vertical plane, the pivot axis of one of the parts relative to the other being located in the same vertical plane. transverse on the upper part of the longitudinal edges.

Au repos, les deux parties de la benne sont jointes et assurent l'étanchéité du container malgré le tronçonnement du fait des poids respectifs des deux demi-bennes qui se plaquent l'une contre l'autre.At rest, the two parts of the bucket are joined and seal the container despite the cutting of the made of the respective weights of the two half-tippers which press against each other.

Le chargement de la benne se fait par l'intermédiaire d'un bulldozer qui déplace à chaque voyage une quantité importante de matière. Le container articulé selon l'invention est ainsi vite rempli et peut être à son tour soulevé et déplacé pour être vidé. Plus précisément, il faut un système mécanique capable de véhiculer la benne et relié à l'invention par un ensemble de câbles, en l'espèce une grue à deux treuils ou tout autre système motorisé pouvant assurer le transfert du container articulé et l'ouverture de deux parties.The loading of the bucket is done via a bulldozer which displaces a significant amount of material on each trip. The articulated container according to the invention is thus quickly filled and can in turn be lifted and moved to be emptied. More specifically, a mechanical system capable of transporting the bucket and connected to the invention by a set of cables is required, in this case a crane with two winches or any other motorized system capable of ensuring the transfer of the articulated container and the opening. of two parts.

Aux quatre coins supérieurs, on trouve des moyens de liaison entre la benne et d'autres câbles issus d'un des treuils et dont la fonction est de séparer les deux demi-bennes qui pivotent l'une par rapport à l'autre. Ce second jeu de câbles exerce des efforts suivent la direction du câble et vers le haut, les points d'applications étant dans le plan horizontal de l'axe aux autre coins.At the upper four corners, there are connection means between the bucket and other cables from one of the winches and whose function is to separate the two half-buckets which pivot relative to each other. This second set of cables exerts forces following the direction of the cable and upwards, the points of application being in the horizontal plane of the axis at the other corners.

Le bref aperçu précédent met en évidence les avantages de la benne articulée selon l'invention :
- la grande contenance et le mode de chargement coopèrent pour diminuer les risques, car les déplacements en charge sont beaucoup moins fréquents.
- il ne peut y avoir de chutes intempestives de gravats, du fait du remplissage par le haut et parce que la conception de la benne et la manière de l'utiliser pendant le chargement - posée à plat sur le sol - impliquent logiquement une bonne étanchéité.
The brief previous overview highlights the advantages of the articulated bucket according to the invention:
- the large capacity and the loading method cooperate to reduce the risks, because the movements under load are much less frequent.
- there can be no untimely falling of rubble, due to the filling from above and because the design of the bucket and the manner of using it during loading - laid flat on the ground - logically imply a good seal.

On va maintenant décrire plus en détail un mode de réalisation de l'invention, en se référant aux dessins annexés, pour lequels :

  • - la figure 1 représente une vue longitudinale de la benne articulée,
  • - la figure 2 en montre une vue de côté,
  • - et la figure 3 détaille le moyen central d'articulation.
An embodiment of the invention will now be described in more detail, with reference to the accompanying drawings, for which:
  • - Figure 1 shows a longitudinal view of the articulated bucket,
  • - Figure 2 shows a side view,
  • - And Figure 3 details the central means of articulation.

Selon l'exemple de mise en oeuvre de l'invention que l'on va décrire, la benne articulée se compose de deux parties homologues (1) et (2), ce qui revient à dire que la section intervient suivant un plan vertical transversal médian. Chaque partie prend la forme d'un volume parallélépipédique un peu modifié en ceci que la base est en plan légèrement incliné remontant vers l'extérieur. Les demi-côtés longitudinaux ont donc la forme d'un trapèze dont la grande base se situe sur la section de contact avec le demi-côté homologue.According to the example of implementation of the invention which will be described, the articulated bucket consists of two homologous parts (1) and (2), which amounts to saying that the section occurs along a transverse vertical plane median. Each part takes the form of a slightly modified parallelepipedic volume in that the base is in a slightly inclined plane rising towards the outside. The longitudinal half-sides therefore have the shape of a trapezium whose large base is located on the contact section with the homologous half-side.

La tôle qui constitue le fond de la demi-benne ainsi réalisée est rigidifiée et supportée par deux poutrelles (3) et (4) transversales à section trapézoïdale dont l'une (3) prend également place au contact de sa poutrelle homologue sur la section de séparation, alors que l'autre (4) est approximativement au milieu du plan incliné, ainsi que représenté en figure 1.The sheet which constitutes the bottom of the half-bucket thus produced is stiffened and supported by two beams (3) and (4) transverse with trapezoidal section, one of which (3) also takes place in contact with its homologous beam on the section of separation, while the other (4) is approximately in the middle of the inclined plane, as shown in Figure 1.

Les trois parois de chaque demi-benne sont également en tôles métalliques renforcées de poutrelles et longerons, les bords supérieurs étant recouverts par une poutrelle de section carrée (5) qui couvre tout le pourtour. Ces profilés classiques ont pour fonction de rigidifier et de solidifier l'ensemble.The three walls of each half-body are also in metal sheets reinforced with beams and side members, the upper edges being covered by a square section beam (5) which covers the entire periphery. These conventional profiles have the function of stiffening and solidifying the assembly.

A chaque coin supérieur, on a disposé une excroissance de tôle (6) percée d'un trou rond destiné au passage d'un arbre, par exemple l'axe d'une manille, afin de réaliser la liaison avec les systèmes à câble (7) qui exercent une traction à l'ouverture de la benne, et dont un exemple a été dessiné en figure 2. Cette excroissance (6) est en tôle renforcée et elle est solidement maintenue dans un logement à l'intersection des poutrelle-rebords. Elle peut prendre la forme d'un rectangle surmonté d'un triangle au sommet arrondi, sa base fusionnant avec le côté supérieur dudit rectangle, et le trou étant percé dans le triangle.At each upper corner, there is disposed a protrusion of sheet metal (6) pierced with a round hole intended for the passage of a shaft, for example the axis of a shackle, in order to make the connection with the cable systems ( 7) which exert traction at the opening of the bucket, and an example of which has been drawn in FIG. 2. This protuberance (6) is made of reinforced sheet metal and it is firmly held in a housing at the intersection of the beams-ledges . It can take the form of a rectangle surmounted by a triangle with a rounded top, its base merging with the upper side of said rectangle, and the hole being drilled in the triangle.

Bien entendu, l'un des points principaux de la benne articulée selon l'invention est la charnière (8) qui permet le pivotement des deux parties (1) et (2). On en montre un détail agrandi dans la figure 3.Of course, one of the main points of the articulated bucket according to the invention is the hinge (8) which allows the pivoting of the two parts (1) and (2). An enlarged detail is shown in Figure 3.

Dans la partie supérieure de chaque demi-benne, au niveau de la section de contact avec son homologue, un logement cubique (9) est découpé dans les parties à section carrée qui forment les bords supérieurs de la benne. En vue de face de la paroi longitudinale, telle que sur la figure 1, cela revient à amputer le coin supérieur de la section de contact d'un carré. Un morceau de tôle (10) dont la forme est proche de celle des excroissances (6), également percé d'un trou rond, est placé dans ledit logement (9), sa base formant un angle à 45° avec l'horizontale et étant fixée par ses deux extrémités aux deux côtés du carré prédécoupé en deux points sur la section de contact et sur le bord supérieur.In the upper part of each half-body, at the level of the section of contact with its counterpart, a cubic housing (9) is cut in the parts with square section which form the upper edges of the body. In front view of the longitudinal wall, as in FIG. 1, this amounts to amputating the upper corner of the contact section of a square. A piece of sheet metal (10) whose shape is close to that of protuberances (6), also pierced with a round hole, is placed in said housing (9), its base forming a 45 ° angle with the horizontal and being fixed by its two ends to the two sides of the square precut at two points on the contact section and on the upper edge.

La forme choisie dans cette configuration est celle d'un triangle à sommet rond, la base ayant été positionnée comme décrit ci-dessus. L'axe de symétrie est par conséquent également décalé de 45° par rapport à l'horizontale, mais à 90° de l'axe de la base.The shape chosen in this configuration is that of a triangle with a round top, the base having been positioned as described above. The axis of symmetry is therefore also offset by 45 ° with respect to the horizontal, but 90 ° from the axis of the base.

Ladite pièce (10) étant prévue pour recevoir l'axe d'articulation, l'axe du trou (11) est bien entendu situé dans le plan vertical médian et transversal. Elle dispose d'un renforcement rendu nécessaire par son rôle de récepteur de l'axe d'articulation, les contraintes de fonctionnement étant ici plus fortes qu'ailleurs.Said part (10) being designed to receive the articulation axis, the axis of the hole (11) is of course located in the vertical median and transverse plane. It has a reinforcement made necessary by its role as receiver of the articulation axis, the operating constraints here being stronger than elsewhere.

Sur l'une des demi-bennes, on ne trouve qu'une seule de ces pièces (10) par paroi longitudinale, venant s'ajuster entre deux pièces homologues du côté opposé, les différents trous (11) se positionnant évidemment de façon à avoir leurs axes confondus. La pièce (10) en question, c'est-à-dire celle qui est seule de son côté, se trouve reliée à celle qui lui fait face sur la paroi longitudinale opposée par un longeron à section carrée qui augmente encore la solidité de l'ensemble.On one of the half-skips, there is only one of these parts (10) per longitudinal wall, coming to fit between two homologous parts on the opposite side, the different holes (11) obviously positioning themselves so as to have their axes combined. The part (10) in question, that is to say that which is alone on its side, is connected to that which faces it on the opposite longitudinal wall by a spar with a square section which further increases the solidity of the 'together.

Selon une configuration de l'invention, la benne a un volume utile d'environ 3m³, soit une capacité d'à peu près 7 tonnes. Pour situer l'avantage qu'on peut en attendre, le chargement d'un camion peut être fait en une dizaine de minutes au lieu d'une demi-heure, durée prévue pour les dispositifs existant actuellement.According to a configuration of the invention, the bucket has a useful volume of approximately 3m³, or a capacity of approximately 7 tonnes. To locate the advantage that can be expected, the loading of a truck can be done in ten minutes instead of half an hour, duration planned for the devices currently existing.

Bien entendu, il est possible d'envisager une infinité de variantes, concernant la forme des composants ou leur positionnement relatif, leur mode d'assemblage, et de fixation (soudage, liaisons boulonnées...). L'exemple de mise en oeuvre décrit auparavant n'est pas limitatif et n'a qu'un rôle illustratif : l'invention englobe également toute variante susceptible d'entrer dans son cadre.Of course, it is possible to envisage an infinity of variants, concerning the shape of the components or their relative positioning, their method of assembly, and of fixing (welding, bolted connections ...). The example of implementation described above is not limiting and has only an illustrative role: the invention also encompasses any variant capable of coming within its scope.

Claims (1)

Benne articulée en tôle caractérisée en ce qu'elle se compose de deux parties (1) et (2) s'ajustant suivant une section de la benne dans un plan vertical médian transversal, lesdites parties s'articulant autour d'un axe (8) situé dans ledit plan, les poids respectifs des deux parties les plaquant l'une contre l'autre de manière à assurer l'étanchéité à la jointure et les quatre coins de ladite benne comportant des moyens (6) de liaison avec un système de commande à câbles destiné à séparer les deux demi-bennes pour en déverser le contenu, ledit système comportant deux treuils de façon à assurer également le levage de la benne.Articulated body in sheet metal characterized in that it consists of two parts (1) and (2) adjusting along a section of the body in a vertical transverse median plane, said parts being articulated around an axis (8 ) located in said plane, the respective weights of the two parts pressing them against each other so as to seal the joint and the four corners of said bucket comprising means (6) for connection with a system of cable control intended to separate the two half-tippers to dump the contents, said system comprising two winches so as to also lift the tipper.
EP87440077A 1987-11-23 1987-11-23 Swivel grab bucket Withdrawn EP0318622A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP87440077A EP0318622A1 (en) 1987-11-23 1987-11-23 Swivel grab bucket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87440077A EP0318622A1 (en) 1987-11-23 1987-11-23 Swivel grab bucket

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EP0318622A1 true EP0318622A1 (en) 1989-06-07

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EP87440077A Withdrawn EP0318622A1 (en) 1987-11-23 1987-11-23 Swivel grab bucket

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR372118A (en) * 1906-05-03 1907-03-26 Asher Lambert Articulated skip
US1571838A (en) * 1924-06-11 1926-02-02 Hutson Archibald Clamshell-dredger bucket
US2111162A (en) * 1936-10-05 1938-03-15 Lcl Corp Means for handling drop bottom containers
US2561649A (en) * 1947-03-24 1951-07-24 Caillard Jean Georges Clamshell bucket

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR372118A (en) * 1906-05-03 1907-03-26 Asher Lambert Articulated skip
US1571838A (en) * 1924-06-11 1926-02-02 Hutson Archibald Clamshell-dredger bucket
US2111162A (en) * 1936-10-05 1938-03-15 Lcl Corp Means for handling drop bottom containers
US2561649A (en) * 1947-03-24 1951-07-24 Caillard Jean Georges Clamshell bucket

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