EP0004818A2 - Tackle composition detector of a lifting device - Google Patents

Tackle composition detector of a lifting device Download PDF

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Publication number
EP0004818A2
EP0004818A2 EP79400222A EP79400222A EP0004818A2 EP 0004818 A2 EP0004818 A2 EP 0004818A2 EP 79400222 A EP79400222 A EP 79400222A EP 79400222 A EP79400222 A EP 79400222A EP 0004818 A2 EP0004818 A2 EP 0004818A2
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EP
European Patent Office
Prior art keywords
detectors
cable
muffling
sheaves
signal
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Granted
Application number
EP79400222A
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German (de)
French (fr)
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EP0004818B1 (en
EP0004818A3 (en
Inventor
Bernard Fougea
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Coignet SA
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Coignet SA
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Publication of EP0004818A3 publication Critical patent/EP0004818A3/en
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Publication of EP0004818B1 publication Critical patent/EP0004818B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88Safety gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00Portable or mobile lifting or hauling appliances
    • B66D3/04Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage

Definitions

  • the subject of the present invention is a device capable of detecting the composition of the muffling associated with the boom of a lifting machine, that is to say of defining the path of the load lifting cable between the different muffle sheaves.
  • such a muffling consists of a certain number n of head sheaves facing a certain number m of muffle sheaves and that the number of strands of the muffling defines the actual load applied to the muffle carrying the lifting hook.
  • the aim of the invention is therefore to create a simple, reliable and economical device making it possible to deliver positive information on the number of strands of the muffling in a form which can be used directly or in cooperation with other control systems.
  • the device for detecting the composition of the muffling associated with the boom of a lifting machine of the kind comprising a number n of sheaves of head capable of cooperating with a number m of sheaves of muffle by means of a cable harnessed by one of its ends to an anchor point and wound by the other, on the drum of a winch, is characterized in that it comprises, associated individually with at least some of said sheaves, detectors capable of each delivering an image signal of status information relating to the path of said cable.
  • a detector cooperating with said anchoring point.
  • the arrangement of detectors in the sheaves makes it possible, after processing the signals delivered, to have reliable information on the state of the muffling.
  • a characteristic of the invention aimed more particularly at the type of muffling comprising, between the winch and one of said head sheaves, a cable guide sheave, it is furthermore provided, a detector adapted to deliver a signal confirming the presence of the cable between the cable guide sheave and said head sheave.
  • the information delivered by this detector more particularly defines certain blowouts.
  • the operation of the detectors can be based on a pneumatic, optical, mechanical or electrical principle, each of these principles having to be taken in the broadest sense, including all related techniques.
  • the signals delivered by said detectors affect the binary form.
  • FIG. 1 represents in 1 all of the head sheaves, integral with the boom of the lifting machine, in 2, all of the muffle sheaves, in 3, of sheave guide -cable - we chose as an example an embodiment comprising such a sheave -, in 4, the traction cable ensuring the lifting of the load by means of the muffling, in 5, the winch on which the cable 4 is wound , in 6, the upper anchor point or "corner box", secured to the arrow head, in 7, the lower anchor point, secured to the muffle sketched in 8, in A, B, C, three detectors according to the invention respectively associated with sheaves 9, 10, 11 of the assembly 1 of the head sheaves, in D, the detector confirming or denying the presence of cable 4 between the cable guide sheave 3 and the extreme sheave 12 of the head assembly 1, at E, the detector assigned to the upper anchoring point 6, at F, a "decoder" module for the signals delivered by the detectors A, B, C, D, E and at G,
  • Figures 2, 3, 4 and 5 are views, also schematic, of the device of Figure 1 for mufflings comprising 2, 3, 9 and 10 strands respectively.
  • the detectors can be adapted to deliver an image signal of a state which can be, in general, defined by a presence or an absence (of the load lifting cable, in this case); this signal could therefore have a binary form if one chooses states 0 and 1 as defining, for example, respectively the absence and the presence of the traction cable.
  • the signal transmitted to the decoder will therefore be of the form: 00011.
  • the load on the load lifting cable being limited by the characteristics of the cable, it follows that the load admissible to the muffle is a function of the number of strands of the muffling; it will therefore be appreciated that the device according to the invention provides, on site or remotely, precise information which can be immediately used.
  • the invention offers, in terms of safety, an extremely important advantage: any signal defining a combination not conforming to the logic of the system can be interpreted as the most unfavorable case in terms of the admissible load. ; cable overload is therefore practically eliminated.
  • the decoded overall information on the state of the muffling can be delivered, both to a signaling and to a state of charge controller acting on the control of the lifting machine. to release or inhibit it.
  • This information can also be stored beforehand for comparison with set values.

Abstract

Aux réas de tête (9, 10, 11, 12) et au réa guide-câble (3) du moufflage associé à la flèche d'un engin de levage, d'une part, ainsi qu'au point d'ancrage (6) du câble de levage de charge (4), d'autre part, sont associés des détecteurs (A à E) susceptibles de délivrer chacun un signal image de l'information d'état relative au trajet du câble (4). Ces détecteurs peuvent être du type des plus variés, pneumatique, optique, mécanique, électrique, et le signal qu'ils délivrent, par exemple sous forme binaire, est exploité dans un module (G) (contrôleur d'état de charge par exemple) après traitement dans un module décodeur (F). Application: Engins de levage.To the head sheaves (9, 10, 11, 12) and to the cable guide sheave (3) of the muffling associated with the boom of a lifting machine, on the one hand, as well as to the anchoring point (6 ) of the load lifting cable (4), on the other hand, are associated with detectors (A to E) capable of each delivering an image signal of the state information relating to the path of the cable (4). These detectors can be of the most varied type, pneumatic, optical, mechanical, electrical, and the signal which they deliver, for example in binary form, is used in a module (G) (state of charge controller for example) after processing in a decoder module (F). Application: Lifting devices.

Description

La présente invention a pour objet un dispositif susceptible de détecter la composition du moufflage associé à la flèche d'un engin de levage, c'est-à-dire de définir le trajet du câble de levage de charge entre les différents réas de mouffle.The subject of the present invention is a device capable of detecting the composition of the muffling associated with the boom of a lifting machine, that is to say of defining the path of the load lifting cable between the different muffle sheaves.

On rappellera pour mémoire qu'un tel moufflage est constitué d'un certain nombre n de réas de tête faisant face à un certain nombre m de réas de mouffle et que le nombre de brins du moufflage définit la charge réelle appliquée à la mouffle portant le crochet de levage.It will be recalled for the record that such a muffling consists of a certain number n of head sheaves facing a certain number m of muffle sheaves and that the number of strands of the muffling defines the actual load applied to the muffle carrying the lifting hook.

On précisera dès l'abord que c'est précisément sur le plan de la sécurité de mise en oeuvre qui est liée à une information précise d'état relative au trajet du câble de levage que se situe le dispositif de l'invention.It will be noted at the outset that it is precisely in terms of implementation safety which is linked to precise state information relating to the path of the lifting cable that the device of the invention is located.

Il existe un certain nombre de dispositifs connus ayant pour objet de contrôler l'état de charge d'un engin de levage; ces dispositifs font intervenir soit certains paramètres mécaniques et physiques tels que l'angle et la longueur de la flèche et la charge appliquée, soit des appareillages plus complexes susceptibles d'évaluer la charge appliquée au crochet. La saisie et l'exploitation des données correspondantes permettent de respecter les coefficients de sécurité relatifs à la grue considérée dans son ensemble (résistance mécanioue, couple de renversement par exemple), mais n'interviennent pas au niveau de la charge maximale admissible sur le câble de levage de charge ; or, il convient de distinguer très nettement la charge nominale que peut supporter la grue de celle du câble de levage de charge, d'une valeur totalement différente.There are a number of known devices intended to control the state of charge of a lifting machine; these devices involve either certain mechanical and physical parameters such as the angle and length of the arrow and the load applied, or more complex devices capable of evaluating the load applied to the hook. Entering and using the corresponding data makes it possible to comply with the safety coefficients relating to the crane considered as a whole (mechanical resistance, overturning torque for example), but do not intervene at the level of the maximum admissible load on the cable load lifting; however, a very different value should be drawn between the nominal load that the crane can support and that of the load lifting cable.

Il existe, notamment en association avec certains systèmes, des commutateurs manuels sur lesquels on simule l'état du moufflage applicable en fonction de la charge admissible au crochet et des caractéristiques du câble de levage de charge.There are, in particular in association with certain systems, manual switches on which the state of the applicable blowdown is simulated as a function of the admissible load on the hook and of the characteristics of the load lifting cable.

Une telle mesure n'offre évidemment aucune protection positiveSuch a measure obviously offers no positive protection

Le but que se propose l'invention est donc de créer un dispositif simple, fiable et économique permettant de délivrer des informations positives sur le nombre de brins du moufflage sous forme exploitable directement ou en coopération avec d'autres systèmes de contrôle.The aim of the invention is therefore to create a simple, reliable and economical device making it possible to deliver positive information on the number of strands of the muffling in a form which can be used directly or in cooperation with other control systems.

A cet effet, le dispositif détecteur de la composition du moufflage associé à la flèche d'un engin de levage du genre comportant un nombre n de réas de tête susceptibles de coopérer avec un nombre m de réas de mouffle par l'intermédiaire d'un câble attelé par l'une de ses extrémités à un point d'ancrage et s'enroulant par l'autre, sur le tambour d'un treuil, est caractérisé en ce qu'il comporte, associés individuellemer à certains au moins desdits réas, des détecteurs susceptibles de délivrer chacun un signal image d'une information d'état re lative au trajet dudit câble.To this end, the device for detecting the composition of the muffling associated with the boom of a lifting machine of the kind comprising a number n of sheaves of head capable of cooperating with a number m of sheaves of muffle by means of a cable harnessed by one of its ends to an anchor point and wound by the other, on the drum of a winch, is characterized in that it comprises, associated individually with at least some of said sheaves, detectors capable of each delivering an image signal of status information relating to the path of said cable.

Préférentiellement, il est prévu en outre un détecteur coopérant avec ledit point d'ancrage.Preferably, there is further provided a detector cooperating with said anchoring point.

On notera que la disposition de détecteurs au niveau des réas permet de disposer, après exploitation des signaux délivrés d'une information fiable sur l'état du moufflage.It will be noted that the arrangement of detectors in the sheaves makes it possible, after processing the signals delivered, to have reliable information on the state of the muffling.

Selon une caractéristique de l'invention visant plus particulièrement le type de moufflage comportant, entre le treuil et l'un desdits réas de tête, un réa guide-câble, il est prévr en outre, un détecteur adapté à délivrer un signal confirmant la présence du câble entre le réa guide-câble et ledit réa de tête.According to a characteristic of the invention aimed more particularly at the type of muffling comprising, between the winch and one of said head sheaves, a cable guide sheave, it is furthermore provided, a detector adapted to deliver a signal confirming the presence of the cable between the cable guide sheave and said head sheave.

Ainsi qu'on le verra par la suite, l'information délivré par ce détecteur définit plus particulièrement certains moufflages.As will be seen later, the information delivered by this detector more particularly defines certain blowouts.

Il va de soi que le fonctionnement des détecteurs peut être basé sur un principe pneumatique, optique, mécanique ou électrique, chacun de ces principes devant être pris dans sc sens le plus large, incluant toutes les techniques apparentéeIt goes without saying that the operation of the detectors can be based on a pneumatic, optical, mechanical or electrical principle, each of these principles having to be taken in the broadest sense, including all related techniques.

Avantageusement, les signaux délivrés par lesdits détecteurs affectent la forme binaire.Advantageously, the signals delivered by said detectors affect the binary form.

Ces signaux sont ainsi aisément décodables et exploitables zu niveau d'une signalisation ou délivrés à un dispositif contrôleur.These signals are thus easily decodable and usable at the level of a signaling or delivered to a controller device.

D'autres caractéristiques et les avantages s'y rattachant découleront d'ailleurs de la description qui va suivre, à titre d'exemple non limitatif, de l'une des formes de réalisation de l'invention en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue simplifiée en perspective d'un moufflage classique montrant l'association, selon l'invention, à certains des réas de détecteurs ou l'emplacement de ces derniers pour signaler le trajet du câble de traction dans le moufflage ;
  • les figures 2, 3, 4 et 5 illustrent l'application du dispositif de la figure 1 à des moufflages présentant, à titre d'exemple, 2, 3, 9 et 10 brins.
Other characteristics and the associated advantages will also follow from the description which follows, by way of nonlimiting example, of one of the embodiments of the invention with reference to the appended drawings in which:
  • Figure 1 is a simplified perspective view of a conventional muffling showing the association, according to the invention, to some of the sheaves of detectors or the location of the latter to indicate the path of the traction cable in the muffling;
  • Figures 2, 3, 4 and 5 illustrate the application of the device of Figure 1 to mufflages having, for example, 2, 3, 9 and 10 strands.

On se référera d'abord à la figure 1 qui représente en 1 l'ensemble des réas de tête, solidaire de la flèche de l'engin de levage, en 2, l'ensemble des réas de mouffle, en 3, de réa guide-câble - on a choisi comme exemple une forme de réalisation comportant un tel réa -, en 4, le câble de traction assurant le levage de la charge par l'intermédiaire du moufflage, en 5, le treuil sur lequel est enroulé le câble 4, en 6, le point d'ancrage supérieur ou "boîte à coin", solidaire de la tête de flèche, en 7, le point d'ancrage inférieur, solidaire de la mouffle esquissée en 8, en A, B, C, trois détecteurs selon l'invention respectivement associés aux réas 9, 10, 11 de l'ensemble 1 des réas de tête, en D, le détecteur confirmant ou infirmant la présence du câble 4 entre le réa guide-câble 3 et le réa extrême 12 de l'ensemble de tête 1, en E, le détecteur affecté au point d'ancrage supérieur 6, en F, un module "décodeur" des signaux délivrés par les détecteurs A, B, C, D, E et en G, un module d'exploitation du signal image du moufflage délivré par le module de décodage F.Reference will first be made to FIG. 1 which represents in 1 all of the head sheaves, integral with the boom of the lifting machine, in 2, all of the muffle sheaves, in 3, of sheave guide -cable - we chose as an example an embodiment comprising such a sheave -, in 4, the traction cable ensuring the lifting of the load by means of the muffling, in 5, the winch on which the cable 4 is wound , in 6, the upper anchor point or "corner box", secured to the arrow head, in 7, the lower anchor point, secured to the muffle sketched in 8, in A, B, C, three detectors according to the invention respectively associated with sheaves 9, 10, 11 of the assembly 1 of the head sheaves, in D, the detector confirming or denying the presence of cable 4 between the cable guide sheave 3 and the extreme sheave 12 of the head assembly 1, at E, the detector assigned to the upper anchoring point 6, at F, a "decoder" module for the signals delivered by the detectors A, B, C, D, E and at G, a moduleof the image signal of the muffling delivered by the decoding module F.

Les figures 2, 3, 4 et 5 sont des vues, schématiques également, du dispositif de la figure 1 pour des moufflages comportant respectivement 2, 3, 9 et 10 brins.Figures 2, 3, 4 and 5 are views, also schematic, of the device of Figure 1 for mufflings comprising 2, 3, 9 and 10 strands respectively.

Pour des raisons de simplification des figures, on n'a représenté ni la tête de flèche dont est solidaire l'ensemble 1 des réas de tête et le point d'ancrage 6 ni le crochet de levage attelé à la mouffle 8 ; ces dispositions sont bien connues de l'homme de l'art.For reasons of simplification of the figures, neither the arrow head is shown which is integral with the assembly 1 of the head sheaves and the anchoring point 6 nor the lifting hook coupled to the muffle 8; these arrangements are well known to those skilled in the art.

Quel que soit le principe du fonctionnement des détecteurs (mécanique, pneumatique, optique ou électrique), on conçoit qu'ils puissent être adaptés à délivrer un signal image d'un état qui peut être, d'une manière générale, défini par une présence ou une absence (du câble de levage de charge, en l'occu- rence) ; ce signal pourra donc affecter une forme binaire si l'on choisit les états 0 et 1 comme définissant, par exemple, respectivement l'absence et la présence du câble de traction.Whatever the principle of operation of the detectors (mechanical, pneumatic, optical or electric), it is understood that they can be adapted to deliver an image signal of a state which can be, in general, defined by a presence or an absence (of the load lifting cable, in this case); this signal could therefore have a binary form if one chooses states 0 and 1 as defining, for example, respectively the absence and the presence of the traction cable.

L'application de ce principe aux figures 2, 3, 4 et 5 se traduit comme suit :The application of this principle to Figures 2, 3, 4 and 5 is reflected as follows:

Figure 2Figure 2

  • détecteur A - état 0detector A - state 0
  • détecteur B - état 0detector B - state 0
  • détecteur C - état 0detector C - state 0
  • détecteur D - état 1detector D - state 1
  • détecteur E - état 1detector E - state 1

Le signal transmis au décodeur sera donc de laforme:00011.The signal transmitted to the decoder will therefore be of the form: 00011.

Les figures 3, 4 et 5 correspondent, dans ces conditions, aux messages suivants :

  • figure 3 - 01010
  • figure 4 - 11100
  • figure 5 - 11101
Figures 3, 4 and 5 correspond, under these conditions, to the following messages:
  • figure 3 - 01010
  • figure 4 - 11100
  • figure 5 - 11101

Sur le plan pratique, ces signaux pourront, après décodage, être interprétés comme suit :

  • 00011 = moufflage à 2 brins
  • 01010 = moufflage à 3 brins
  • 11100 = moufflage à 9 brins
  • 11101 = moufflage à 10 brins
In practical terms, these signals may, after decoding, be interpreted as follows:
  • 00011 = 2-strand muffling
  • 01010 = 3-strand muffling
  • 11100 = 9-strand muffling
  • 11101 = 10-strand muffling

De la même manière, on peut définir par :

  • 01011 = moufflage à 4 brins
  • 01110 = moufflage à 5 brins
  • 11111 = moufflage à 8 brins
In the same way, we can define by:
  • 01011 = 4-strand muffling
  • 01110 = 5-strand muffling
  • 11111 = 8-strand muffling

On en déduit immédiatement, pour les besoins de l'exploitation, certaines règles générales, telles que, par exemple :

  • codes se terminant par 1 : nombre de brins pair
  • codes se terminant par 0 : nombre de brins impair
  • codes débutant par 1 : nombre de brins supérieur à 8.
We deduce immediately, for operational purposes, certain general rules, such as, for example:
  • codes ending with 1: even number of strands
  • codes ending with 0: odd number of strands
  • codes starting with 1: number of strands greater than 8.

La charge sur le câble de levage de charge étant limitée par les caractéristiques du câble, il en résulte que la charge admissible à la mouffle est fonction du nombre de brins du moufflage ; on appréciera donc que le dispositif selon l'invention fournit, sur place ou à distance, une information précise et immédiatement exploitable.The load on the load lifting cable being limited by the characteristics of the cable, it follows that the load admissible to the muffle is a function of the number of strands of the muffling; it will therefore be appreciated that the device according to the invention provides, on site or remotely, precise information which can be immediately used.

Chaque combinaison étant logique, l'invention offre, sur le plan de la sécurité, un avantage extrêmement important : tout signal définissant une combinaison non conforme à la logique du système peut être interprétée comme le cas le plus défavorable sur le plan de la charge admissible ; la surcharge du câble est donc pratiquement éliminée.Each combination being logical, the invention offers, in terms of safety, an extremely important advantage: any signal defining a combination not conforming to the logic of the system can be interpreted as the most unfavorable case in terms of the admissible load. ; cable overload is therefore practically eliminated.

On n'entrera pas dans le détail de réalisation des détecteurs dont de nombreuses variantes sont bien connues de l'homme de l'art et qui peuvent d'ailleurs être actionnés automatiquement ou manuellement, en cas de besoin. Ainsi qu'on l'a signalé plus haut, l'information globale décodée sur l'état du moufflage peut être délivrée, tant à une signalisation qu'à un contrôleur d'état de charge agissant sur la commande de l'engin de levage pour la libérer ou l'inhiber.We will not go into the detail of the realization of the detectors, many variants of which are well known to those skilled in the art and which can moreover be actuated automatically or manually, if necessary. As indicated above, the decoded overall information on the state of the muffling can be delivered, both to a signaling and to a state of charge controller acting on the control of the lifting machine. to release or inhibit it.

Cette information peut également être préalablement mémorisée pour être comparée à des valeurs consignes.This information can also be stored beforehand for comparison with set values.

Il va de soi que l'invention se prête à de nombreuses variantes qui en font toutes partie.It goes without saying that the invention lends itself to numerous variants which all form part of it.

Claims (11)

1. Dispositif détecteur de la composition du moufflage associé à la flèche d'un engin de levage du genre comportant un nombre n de réas de tête susceptibles de coopérer avec un nombre m de réas de mouffle par l'intermédiaire d'un câble attelé par l'une de ses extrémités à un point d'ancrage et s'enroulant par l'autre, sur le tambour d'un treuil, ledit dispositif caractérisé en ce qu'il comporte, associés individuellement, à certains au moins desdits réas (9, 10, 11, 12), des détecteurs (A, B, C) susceptibles de délivrer chacun un signal image d'une information d'état relative au trajet dudit câble (4).1. Device for detecting the composition of the muffling associated with the boom of a lifting device of the kind comprising a number n of sheaves of head capable of cooperating with a number m of sheaves of muffle by means of a cable coupled by one of its ends at an anchor point and wound by the other, on the drum of a winch, said device characterized in that it comprises, associated individually, with at least some of said sheaves (9 , 10, 11, 12), detectors (A, B, C) capable of each delivering an image signal of state information relating to the path of said cable (4). 2. Dispositif selon la revendication 1, caractérisé en ce au'il est prévu en outre un détecteur (E) coopérant avec ledit point d'ancrage.2. Device according to claim 1, characterized in that there is further provided a detector (E) cooperating with said anchor point. 3. Dispositif selon la revendication 1 ou 2, caractérisé en ce oue, ledit moufflage comportant entre un treuil (5) et l'un des réas de tête (12) un réa guide-câble (3), il est prévu en outre un détecteur (D) adapté à délivrer un signal confirmant la présence du câble (4) entre le réa guide-câble (3) et ledit réa de tête (12).3. Device according to claim 1 or 2, characterized in that oue, said muffling comprising between a winch (5) and one of the head sheaves (12) a sheave cable guide (3), there is further provided a detector (D) adapted to deliver a signal confirming the presence of the cable (4) between the cable guide sheave (3) and said head sheave (12). 4. Dispositif selon une quelconque des revendications 1 à 3, caractérisé en ce que lesdits détecteurs (A, B, C, D, E) sont du type pneumatique.4. Device according to any one of claims 1 to 3, characterized in that said detectors (A, B, C, D, E) are of the pneumatic type. 5. Dispositif selon une quelconque des revendications 1 à 3, caractérisé en ce que lesdits détecteurs (A, B, C, D, E) sont du type optique.5. Device according to any one of claims 1 to 3, characterized in that said detectors (A, B, C, D, E) are of the optical type. 6. Dispositif selon une quelconque des revendications 1 à 3, caractérisé en ce que lesdits détecteurs (A, B, C, D, E) sont du type mécanique.6. Device according to any one of claims 1 to 3, characterized in that said detectors (A, B, C, D, E) are of the mechanical type. 7. Dispositif selon une quelconque des revendications 1 i 3, caractérisé en ce que lesdits détecteurs (A, B, C, D, E) sont du type électrique.7. Device according to any one of claims 1 i 3, characterized in that said detectors (A, B, C, D, E) are of the electrical type. 8. Dispositif selon une quelconque des revendications précédentes, caractérisé en ce que les signaux délivrés par lesdits détecteurs (A, B, C, D, E) affectent la forme binaire.8. Device according to any one of the preceding claims, characterized in that the signals delivered by said detectors (A, B, C, D, E) affect the binary form. 9. Dispositif selon une quelconque des revendications précédentes, caractérisé en ce que lesdits signaux délivrés sont traités dans un central de décodage (F) adapté à délivrer un signal image dudit moufflage.9. Device according to any one of the preceding claims, characterized in that the said delivered signals are processed in a decoding center (F) adapted to deliver an image signal of the said muffling. 10. Dispositif selon.la revendication 9, caractérisé en ce que ledit signal est délivré à un organe de signalisation (G), notamment un affichage numérique.10. Device according to claim 9, characterized in that said signal is delivered to a signaling member (G), in particular a digital display. 11. Dispcsitif selon la revendication 9 ou 10, caractérisé en ce que ledit signal est délivré en outre à un contrôleur d'état de charge (G) d'un type connu en soi.11. Device according to claim 9 or 10, characterized in that said signal is also supplied to a state of charge controller (G) of a type known per se.
EP79400222A 1978-04-12 1979-04-05 Tackle composition detector of a lifting device Expired EP0004818B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7810826A FR2422582A1 (en) 1978-04-12 1978-04-12 MOLDING COMPOSITION DETECTOR OF A LIFTING END
FR7810826 1978-04-12

Publications (3)

Publication Number Publication Date
EP0004818A2 true EP0004818A2 (en) 1979-10-17
EP0004818A3 EP0004818A3 (en) 1979-11-14
EP0004818B1 EP0004818B1 (en) 1981-10-14

Family

ID=9207034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400222A Expired EP0004818B1 (en) 1978-04-12 1979-04-05 Tackle composition detector of a lifting device

Country Status (7)

Country Link
US (1) US4251059A (en)
EP (1) EP0004818B1 (en)
JP (1) JPS54149163A (en)
CA (1) CA1134967A (en)
DD (1) DD142697A5 (en)
DE (1) DE2960970D1 (en)
FR (1) FR2422582A1 (en)

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US5514401A (en) * 1990-03-19 1996-05-07 The Regents Of The University Of California Supercritical fluid extraction of cholesterol from liquid egg yolk
CN108313885A (en) * 2018-04-17 2018-07-24 郑州科润机电工程有限公司 A kind of unconventional reel system for big multiplying power bridge machine
CN110028004A (en) * 2019-04-26 2019-07-19 辽宁机电职业技术学院 A kind of safety monitoring system and detection method based on modularization hoisting trolley

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CN107488902B (en) * 2017-08-25 2019-08-09 遵义天蕴纺织有限责任公司 A kind of production technology of cotton thread
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US10994970B2 (en) 2019-07-29 2021-05-04 Jim D. Wiethorn Crane risk logic apparatus and system and method for use of same
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US5314259A (en) * 1983-09-20 1994-05-24 Canon Kabushiki Kaisha Recording apparatus having an improved mechanism for moving the recording section thereof
US5514401A (en) * 1990-03-19 1996-05-07 The Regents Of The University Of California Supercritical fluid extraction of cholesterol from liquid egg yolk
CN108313885A (en) * 2018-04-17 2018-07-24 郑州科润机电工程有限公司 A kind of unconventional reel system for big multiplying power bridge machine
CN110028004A (en) * 2019-04-26 2019-07-19 辽宁机电职业技术学院 A kind of safety monitoring system and detection method based on modularization hoisting trolley

Also Published As

Publication number Publication date
EP0004818B1 (en) 1981-10-14
US4251059A (en) 1981-02-17
CA1134967A (en) 1982-11-02
JPS5757397B2 (en) 1982-12-04
DD142697A5 (en) 1980-07-09
JPS54149163A (en) 1979-11-22
FR2422582B1 (en) 1980-11-07
EP0004818A3 (en) 1979-11-14
FR2422582A1 (en) 1979-11-09
DE2960970D1 (en) 1981-12-24

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