FR2821070A1 - Semi-automatic mechanical cross bars for handling flexible containers in a support frame, uses arms with grips at the end with a linkage from the lifting eye to close grips during lifting and release them when the load is lowered - Google Patents
Semi-automatic mechanical cross bars for handling flexible containers in a support frame, uses arms with grips at the end with a linkage from the lifting eye to close grips during lifting and release them when the load is lowered Download PDFInfo
- Publication number
- FR2821070A1 FR2821070A1 FR0102434A FR0102434A FR2821070A1 FR 2821070 A1 FR2821070 A1 FR 2821070A1 FR 0102434 A FR0102434 A FR 0102434A FR 0102434 A FR0102434 A FR 0102434A FR 2821070 A1 FR2821070 A1 FR 2821070A1
- Authority
- FR
- France
- Prior art keywords
- lifting
- grips
- load
- semi
- release
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/442—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces actuated by lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/422—Gripping members engaging only the external or internal surfaces of the articles actuated by lifting force
Abstract
Description
<Desc/Clms Page number 1> <Desc / Clms Page number 1>
La présente invention concerne un palonnier mécanique pour la manutention de conteneurs semi-vrac souples disposés sur des cadre-support, pour permettre la préhension rapide de ces conteneurs. The present invention relates to a mechanical spreader for handling flexible semi-bulk containers arranged on support frames, to allow rapid gripping of these containers.
La manutention des conteneurs souples est traditionnellement effectuée à l'aide de chariot élévateur à fourches ou de palonniers à fourches, opérations qui sont assez lentes à exécuter. En effet, les conteneurs souples dans leur réalisation la plus courante, présentent quatre sangles textiles de levage disposées dans les angles du sac. Or ces sangles qui ne présentent pas de rigidité particulière ont tendance à s'affaisser, ce qui oblige le manutentionnaire à les enfiler manuellement sur les fourches de l'élévateur. De ce fait, les fournisseurs ont équipé les conteneurs souples de cadre-support rigides assujettis aux sangles et qui acceptent des moyens de préhension polyvalents tel que : passage de fourches, oeilletons d'élinguage ou cadre tubulaire de préhension de section carrée ou circulaire. Pour ce dernier cas, il n'existait pas de moyen de préhension qui assure une prise rapide et sûre au moyen d'un palonnier de manutention. The handling of flexible containers is traditionally carried out using a forklift or fork spreaders, operations which are fairly slow to perform. Indeed, flexible containers in their most common embodiment have four lifting textile straps arranged in the corners of the bag. However, these straps which do not have any particular rigidity tend to sag, which obliges the handler to thread them manually on the forks of the elevator. As a result, the suppliers have fitted the flexible containers with rigid support frames subject to the straps and which accept versatile gripping means such as: fork passage, slinging eyelets or tubular gripping frame of square or circular section. For the latter case, there was no gripping means which ensures a fast and safe grip by means of a lifting beam.
Le palonnier mécanique, selon l'invention permet de remédier à cet inconvénient. Il comporte en effet selon une première caractéristique, un dispositif préhenseur autoserrant se composant de quatre bras munis de pinces qui viennent assujettir les quatre coins du cadre du conteneur, l'effort de levage assurant alors la commande mécanique du verrouillage des pinces en position fermée. The mechanical lifting beam according to the invention overcomes this drawback. According to a first characteristic, it indeed comprises a self-gripping gripping device consisting of four arms provided with clamps which come to secure the four corners of the frame of the container, the lifting force then ensuring the mechanical control of the locking of the clamps in the closed position.
Le palonnier mécanique objet de la présente invention se caractérise essentiellement en ce qu'il comporte un anneau central de levage, disposé de façon que le mouvement de traction commande directement par des renvois d'angle mécaniques judicieusement disposés, les quatre pinces de serrage disposées dans les angles. Sous cette action, la géométrie particulière des pinces de serrage assure une fermeture selon un angle positif qui assure l'irréversibilité du mouvement tout au long du levage et de ce fait la sûreté du verrouillage de la charge qui est assujettie au palonnier pendant la manutention du conteneur. Ce dispositif présente l'avantage de ne pas présenter de force de serrage proportionnelle à l'effort de levage, éliminant ainsi les risques de manque d'adhérence traditionnellement liés à ce type de disposition constructive. The mechanical lifting beam object of the present invention is essentially characterized in that it comprises a central lifting ring, arranged so that the traction movement directly controls by judiciously arranged mechanical bevel gear, the four clamps arranged in Angles. Under this action, the particular geometry of the clamps ensures a closure at a positive angle which ensures the irreversibility of the movement throughout the lifting and therefore the safety of the locking of the load which is subject to the lifter during the handling of the container. This device has the advantage of not having a clamping force proportional to the lifting force, thus eliminating the risks of lack of adhesion traditionally associated with this type of constructive arrangement.
Selon une caractéristique additionnelle du dispositif selon l'invention, une clavette disposée sur l'axe central de levage assure un verrouillage en position ouverte des quatre pinces du palonnier. De ce fait, le palonnier armé en position ouverte est disponible pour une nouvelle utilisation. Le fait de retirer manuellement cette clavette et d'exercer de façon concomitante un déplacement de levage sur le palonnier a pour effet de libérer les pinces qui se referment alors fermement sur le cadre de préhension du conteneur souple à manutentionner. La libération de la charge et le réarmement des pinces en position ouverte sont effectués manuellement par le manutentionnaire par son action de verrouillage de la clavette. According to an additional characteristic of the device according to the invention, a key disposed on the central lifting axis ensures locking in the open position of the four clamps of the lifter. As a result, the lifter armed in the open position is available for new use. Manually removing this key and concomitantly exerting a lifting movement on the lifting beam has the effect of releasing the clamps which then close firmly on the gripping frame of the flexible container to be handled. The release of the load and the rearming of the clamps in the open position are carried out manually by the handler by its action of locking the key.
<Desc/Clms Page number 2> <Desc / Clms Page number 2>
Cette disposition présente l'avantage de ne pas faire appel à un ressort de réarmement automatique, qui compromettrait la sûreté du dispositif de levage en cas de délestage momentané de la charge, risquant de provoquer une ouverture indésirable. This arrangement has the advantage of not using an automatic rearming spring, which would compromise the safety of the lifting device in the event of temporary load shedding, risking causing undesirable opening.
Selon un autre mode d'exécution de cette caractéristique, la clavette peut être actionnée à distance par un moyen de commande électromécanique ou un vérin. According to another embodiment of this characteristic, the key can be actuated remotely by an electromechanical control means or a jack.
Selon un autre mode d'exécution de cette caractéristique, le réarmement des pinces en position ouverte peut être actionné à distance par un moyen de commande semi-automatique ou automatique. According to another embodiment of this characteristic, the resetting of the pliers in the open position can be actuated remotely by a semi-automatic or automatic control means.
Les avantages et les caractéristiques de la présente invention ressortiront plus clairement de la description qui suit et qui se rapporte au dessin d'ensemble annexé FIG 1. En référence à ce dessin, on peut voir que lorsqu'on libère la goupille 1, l'anneau de levage 2 se déplace en translation vers le haut jusqu'en butée, ce déplacement étant du à l'effort de levage. Il agit alors sur des équerres 3, qui tirent vers le centre les biellettes 4, lesquelles tirent à leur tour sur les pinces mobiles en forme d'équerre 5 qui viennent se refermer sous le cadre-support du conteneur souple, lequel ayant été préalablement coiffé par les quatre pinces dormantes 6 solidaires des branches du palonnier 7 qui présente la rigidité nécessaire pour transmettre ensuite l'effort de soulèvement à l'ensemble de la charge. The advantages and characteristics of the present invention will emerge more clearly from the description which follows and which relates to the overall drawing annexed to FIG 1. With reference to this drawing, it can be seen that when the pin 1 is released, the lifting ring 2 moves in translation upwards until it stops, this movement being due to the lifting force. It then acts on brackets 3, which pull the rods 4 towards the center, which in turn pull on the movable clamps in the form of a square 5 which come to close under the support frame of the flexible container, which having been previously capped by the four dormant clamps 6 integral with the arms of the lifter 7 which has the rigidity necessary to then transmit the lifting force to the entire load.
On notera que le pivot solidaire de l'anneau de levage 2, est muni d'un ergot de verrouillage destiné à recevoir la goupille 1, cette disposition permettant, lorsque la goupille 1 est en position enfoncée de maintenir les quatre pinces de préhension en position ouverte, de façon que le palonnier puisse être présenté aisément par l'opérateur sur le cadre du conteneur qu'il souhaite manutentionner. It will be noted that the pivot integral with the lifting ring 2, is provided with a locking lug intended to receive the pin 1, this arrangement making it possible, when the pin 1 is in the depressed position, to hold the four gripping pliers in position open, so that the lifter can be easily presented by the operator on the frame of the container he wishes to handle.
En outre, le dispositif préhenseur, selon l'invention est d'une utilisation rapide et sans effort, il peut n'être actionné que d'une seule main, l'effort d'ouverture effectué sur l'une des pinces se transmettant automatiquement aux autres. In addition, the gripping device according to the invention is quick and effortless to use, it can only be actuated with one hand, the opening force carried out on one of the pliers being transmitted automatically to others.
Selon un mode de réalisation, la masse totale de l'équipement mobile 2 et 3 et les jeux libres ménagés pour son fonctionnement ont a été définis judicieusement de façon que les pinces s'ouvrent seules sans l'assistance de l'opérateur dès-lors que l'axe 2 est déplacé en translation jusqu'en butée basse par une manoeuvre volontaire de délestage commandée par le manutentionnaire. According to one embodiment, the total mass of the mobile equipment 2 and 3 and the free games provided for its operation have been judiciously defined so that the clamps open alone without the assistance of the operator from then on. that the axis 2 is moved in translation to the bottom stop by a voluntary load shedding operation controlled by the handler.
Selon un autre mode de réalisation, le nombre de pinces peut varier de trois à huit. According to another embodiment, the number of pliers can vary from three to eight.
Selon un autre mode de réalisation les pinces mobiles 5 et les pinces dormantes antagonistes 6 qui sont assujetties au palonnier 7 peuvent prendre des dimensions et des formes adaptées aux cadres de préhension dont sont équipés les différents conteneurs souples que l'on désire manutentionner. According to another embodiment, the movable grippers 5 and the counteracting grippers 6 which are subject to the lifter 7 can take dimensions and shapes adapted to the gripping frames with which the various flexible containers which it is desired to handle are equipped.
<Desc/Clms Page number 3> <Desc / Clms Page number 3>
Selon un autre mode de réalisation, l'ensemble du palonnier mécanique est réalisé en acier inoxydable de qualité alimentaire, lui conférant ainsi la propriété d'être entièrement nettoyable au jet haute pression et décontaminable à chaud et à la vapeur. Cette caractéristique lui est conférée par la liberté de jeu donnée à l'assemblage qui lui permet de s'affranchir de toute forme de graissage ou de lubrification pour son fonctionnement, permettant de ce fait d'éliminer tout risque de contamination rapportée par les lubrifiants de qualité alimentaire ou non. En outre, l'absence de lubrification réduit l'entretien de l'appareil à une simple visite. According to another embodiment, the entire mechanical lifting beam is made of food-grade stainless steel, thus giving it the property of being completely cleanable with a high pressure jet and decontaminable by hot and steam. This characteristic is given to it by the freedom of play given to the assembly which allows it to be free from any form of lubrication or lubrication for its operation, thereby thereby eliminating any risk of contamination reported by the lubricants of food grade or not. In addition, the lack of lubrication reduces maintenance of the device to a simple visit.
Le palonnier mécanique selon l'invention est particulièrement destiné à la manutention des conteneurs semi-vrac souples dans l'industrie pharmaceutique, cosmétique et alimentaire. The mechanical lifting beam according to the invention is particularly intended for the handling of flexible semi-bulk containers in the pharmaceutical, cosmetic and food industry.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0102434A FR2821070A1 (en) | 2001-02-19 | 2001-02-19 | Semi-automatic mechanical cross bars for handling flexible containers in a support frame, uses arms with grips at the end with a linkage from the lifting eye to close grips during lifting and release them when the load is lowered |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0102434A FR2821070A1 (en) | 2001-02-19 | 2001-02-19 | Semi-automatic mechanical cross bars for handling flexible containers in a support frame, uses arms with grips at the end with a linkage from the lifting eye to close grips during lifting and release them when the load is lowered |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2821070A1 true FR2821070A1 (en) | 2002-08-23 |
Family
ID=8860331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0102434A Pending FR2821070A1 (en) | 2001-02-19 | 2001-02-19 | Semi-automatic mechanical cross bars for handling flexible containers in a support frame, uses arms with grips at the end with a linkage from the lifting eye to close grips during lifting and release them when the load is lowered |
Country Status (1)
Country | Link |
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FR (1) | FR2821070A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106044542A (en) * | 2016-03-30 | 2016-10-26 | 上海市建筑装饰工程集团有限公司 | Contactless lifting sling system for towering precious metal tower mast |
CN106044544A (en) * | 2016-03-30 | 2016-10-26 | 上海市建筑装饰工程集团有限公司 | Installation method for contactless lifting sling system of towering precious metal tower mast |
CN106904532A (en) * | 2017-04-20 | 2017-06-30 | 明阳智慧能源集团股份公司 | A kind of wind turbine gearbox is without outer ring cylinder roller bearing suspender |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8602240U1 (en) * | 1986-01-29 | 1986-03-06 | Müller, Franz, 8949 Pfaffenhausen | Manhole ring lifting device |
DE9015712U1 (en) * | 1990-11-03 | 1991-02-14 | Bauer, Heinz-Dieter, 4286 Suedlohn, De | |
US5797639A (en) * | 1997-04-07 | 1998-08-25 | Zorzenon; Peter P. | Lock box |
-
2001
- 2001-02-19 FR FR0102434A patent/FR2821070A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8602240U1 (en) * | 1986-01-29 | 1986-03-06 | Müller, Franz, 8949 Pfaffenhausen | Manhole ring lifting device |
DE9015712U1 (en) * | 1990-11-03 | 1991-02-14 | Bauer, Heinz-Dieter, 4286 Suedlohn, De | |
US5797639A (en) * | 1997-04-07 | 1998-08-25 | Zorzenon; Peter P. | Lock box |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106044542A (en) * | 2016-03-30 | 2016-10-26 | 上海市建筑装饰工程集团有限公司 | Contactless lifting sling system for towering precious metal tower mast |
CN106044544A (en) * | 2016-03-30 | 2016-10-26 | 上海市建筑装饰工程集团有限公司 | Installation method for contactless lifting sling system of towering precious metal tower mast |
CN106044542B (en) * | 2016-03-30 | 2019-02-19 | 上海市建筑装饰工程集团有限公司 | Towering noble metal tower mast sling system |
CN106044544B (en) * | 2016-03-30 | 2019-02-19 | 上海市建筑装饰工程集团有限公司 | The installation method of towering noble metal tower mast sling system |
CN106904532A (en) * | 2017-04-20 | 2017-06-30 | 明阳智慧能源集团股份公司 | A kind of wind turbine gearbox is without outer ring cylinder roller bearing suspender |
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