EP1857618A1 - Door capable of closing an opening of an internal compartment integrating at least the potentially dangerous moving element, in particular the actuator - Google Patents

Door capable of closing an opening of an internal compartment integrating at least the potentially dangerous moving element, in particular the actuator Download PDF

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Publication number
EP1857618A1
EP1857618A1 EP07370010A EP07370010A EP1857618A1 EP 1857618 A1 EP1857618 A1 EP 1857618A1 EP 07370010 A EP07370010 A EP 07370010A EP 07370010 A EP07370010 A EP 07370010A EP 1857618 A1 EP1857618 A1 EP 1857618A1
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EP
European Patent Office
Prior art keywords
opening
lever
lock
door
locking
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
EP07370010A
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German (de)
French (fr)
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EP1857618B1 (en
Inventor
Nicolas Couvrot SA Noël
Eric Couvrot SA Brunquet
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COUVROT
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COUVROT
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Publication of EP1857618A1 publication Critical patent/EP1857618A1/en
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Publication of EP1857618B1 publication Critical patent/EP1857618B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B13/00—Devices preventing the key or the handle or both from being used
    • E05B13/002—Devices preventing the key or the handle or both from being used locking the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
    • B01F35/451—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by rotating them about an axis parallel to the plane of the opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806—Details; Accessories
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/001—Locks or fastenings for special use for gas- or watertight wings

Definitions

  • the invention relates to a door, able to close an opening of an internal compartment incorporating at least the movable member, including motor, and potentially dangerous.
  • the invention will find a particular application to equip the tank with a mixer to allow maintenance operations.
  • a service door allows access to the internal compartment of the tank, in particular to allow the cleaning of the tank, the change of wear parts or simple repairs.
  • this service door is equipped with a safety device with a double locking point, preventing the opening of the door, especially when the moving part, that is to say the mixing train. , is active.
  • This safety device comprises, generally, two control levers, provided with bolts and subject to the opening of the door. Each bolt is able to engage or extract a striker of the frame, during the rotation of the corresponding lever.
  • control levers can be blocked by means of two locks. Each lock makes it possible to immobilize one of the levers in a locking position.
  • the present invention aims to provide a door, adapted to close an opening of an internal compartment, in particular of a tank of a mixer, equipped with a simplified safety device and at a lower cost.
  • the invention relates to a door, able to close an opening of an internal compartment integrating at least one movable member, in particular motor, and potentially dangerous, in particular intended to allow access to a tank of a mixer to allow operations maintenance, constituted by an articulated opening, in particular by hinge or hinge to a frame, said door being equipped with a safety device with double locking point and actuated by two control levers, each lever being provided with a bolt, adapted to engage with a striker in the locking position, or remove from said striker during the rotation of said corresponding lever, the safety device further having controlled locking means, prohibiting the opening of the door at least when said movable member is active.
  • the opening and closing paths of the two control levers overlap at least partially, one of the two levers, said first control lever, constituting an obstacle, in the locking position for the other lever , said second control lever, when unlocking the safety device, said controlled locking means being constituted by a single lock adapted to immobilize said first control lever in the locking position.
  • the invention relates to a door 1, able to close an opening an internal compartment incorporating at least one movable member, in particular a motor, and potentially dangerous, in particular intended to authorize access to a tank of a mixer in order to allow maintenance operations, constituted by an articulated opening 2, in particular by means of hinge or hinge 3 to a frame 4.
  • the door 1 is equipped with a safety device 5 with a double locking point 6 1 , 6 2 .
  • the safety device 5 is actuated by two control levers 7 1 , 7 2 , each lever being provided with a bolt 8 adapted to engage with a latch 9, in the locking position, or to extract from said striker when rotation of said corresponding lever.
  • the safety device further has controlled locking means 10, prohibiting the opening of the door, at least when said movable member is active.
  • the opening and closing paths of the two control levers 7 1 , 7 2 overlap, at least partially.
  • One of the two levers, said first control lever 7 1 is an obstacle, in the locked position, for the other lever, said second control lever 7 2 , when unlocking the safety device 5.
  • the locking means controlled 10 are constituted by a single lock 11 adapted to immobilize said first control lever 7 1 in the locking position.
  • Said single lock 11 may be an element of a key transfer locking device according to the European standard EN 1088, relating to the safety of the machines.
  • the lock of the door and the switch, in particular on / off of the machine, which also includes a lock share the same transferable key.
  • the essential feature of the system is that the key is kept captive either in the lock of the door, or in the lock associated with the switch. The key can only be released when the door is closed and locked. This allows the transfer of the key from the door to the switch.
  • Closing the switch will hold the key so that it can not be removed while the switch is in the "on" position.
  • the lock 11 is electrically controlled and ensures the locking of the first control lever 7 1 as the motor means of the movable member are under tension.
  • first and the second control levers 7 1 , 7 2 are articulated to the opening 2 along two parallel axes of rotation to be able to pivot in the same plane. Strikes 9 of the two locking points 6 1 , 6 2 , are located on either side of the compartment opening, secured to the frame.
  • Each control lever 7 1 , 7 2 may have at its distal end a control handle 12.
  • the proximal end of the lever is provided with the locking bolt 8.
  • the lever has an intermediate hinge 13 located near its proximal end.
  • the strikes 9 may each consist of a hook-forming element adapted to receive the bolt 8 of the control lever 7 1 , 7 2 .
  • the opening 2 is equipped with a lower control lever 7 1 and a control lever 7 2 upper.
  • the two levers are substantially identical, each longer than half the height of the door.
  • the strikes are constituted by hook elements.
  • the lower control lever 7 1 rotates, in the clockwise direction, to open, to extract the latch 9, the bolt 8.
  • the lower control lever 7 1 constitutes an obstacle for the upper control lever 2 , which rotates when opening, counter-clockwise.
  • the lock 11 is carried by a leaf 14, articulated to the frame 4.
  • the lock 11 and its wing 14 can be moved from a contact position in which said lock comes to cover the opening 2, when the latter is closed, to a release position allowing the rotation of the opening 2 and thus its opening.
  • casement assembly 14 / lock 11 is hinged in particular hinge to the frame 4, to cover the free edge of the opening 2, the opposite side to the hinges 3 of the latter.
  • the lock 11 may have a latch and means for actuating the latch, allowing either to engage the latch in a reservation of the opening 2 (not shown) and thus the locking of the lock 11 and its flap 14 to the opening 2, in said contact position, or to extract the latch of the reservation for retracting, in rotation, the lock 11 and its flap 14 in said release position.
  • the lock 11 or its flap may be provided with an element 15 for securing the first control lever 7 1 to immobilize in rotation said first lever when the lock 11 and the flap 14 are in the so-called contact position with the sash 2 .
  • the fastening element 15 may be constituted by a rod secured to the lock assembly 11 / flapper 14.
  • the rod has an orifice 16 for engaging with a lug 17 of the first control lever 7 1 to immobilize its rotational position.
  • the invention can be adapted to a double door.
  • the double door has a first door 1 1 adapted to come to cover the second door 1 2 in the closed position, blocking the latter.
  • the first door 1 1 is equipped with the safety device 5 with double locking point 6 1 , 6 2 with its two control levers 7 1 , 7 2 .
  • the first lever 7 1 constitutes an obstacle for the second lever 7 2 during unlocking.
  • the safety device has a single lock 11, able to lock the first lever 7 1 , in the locking position.
  • the lock 11 is carried by a leaf 14 hinged to the second door 1 2 .
  • the double door may have a third locking point with a latch 9 and a third lever 7 5 on the second door 1 2 .
  • the invention will find particular use as a service door to allow access to the tank of a mixer, including fixed bowl, for mixing dry or wet components, especially for the preparation of concrete.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

In a door (1) for a compartment incorporating moving part(s), having a safety device (5) with a double locking point (6-1, 6-2) activated by two control levers (7-1, 7-2), each having a bolt (8) (dis)engaging a hook (9), and a controlled opening blocker (10), the trajectories of the levers overlap, so that the first lever (7-1) forms an obstacle for the second during unlocking. The blocker is a single lock for immobilizing the locked first lever. A door (1) for closing a compartment incorporating moving part(s) comprises a panel (2) hinged (3) to a frame (3) and having a safety device (5) with a double locking point (6-1, 6-2) activated by two control levers (7-1, 7-2), each having a bolt (8) which engages with a hook (9) (in locked position) or is disengaged by rotating the lever. The safety device also has a controlled blocker (10) for preventing opening of the door, at least when the moving part is operating. The novel features are that (a) the opening and closing trajectories of the two levers at least partially overlap, such that in the locked position the first lever (7-1) forms an obstacle for the second lever (7-2) during unlocking of the safety device and (b) the controlled blocker consists of a single lock for immobilizing the first lever in the locked position.

Description

L'invention est relative à une porte, apte à fermer une ouverture d'un compartiment interne intégrant au moins l'organe mobile, notamment moteur, et potentiellement dangereux.The invention relates to a door, able to close an opening of an internal compartment incorporating at least the movable member, including motor, and potentially dangerous.

L'invention trouvera une application particulière pour équiper la cuve d'un malaxeur afin d'autoriser des opérations de maintenance.The invention will find a particular application to equip the tank with a mixer to allow maintenance operations.

Dans le domaine technique des malaxeurs, il est connu des malaxeurs à cuve fixe pour le brassage de composants secs/humides, tels que notamment sable de silice ou autres pour la préparation de béton. Le brassage des composants est assuré par l'intermédiaire d'un train de malaxage rotatif, muni de pales et actionné d'un mouvement de rotation simple ou complexe à l'intérieur de la cuve.In the technical field of kneaders, it is known fixed bowl mixers for mixing dry / wet components, such as silica sand or other particular for the preparation of concrete. The mixing of the components is provided by means of a rotary kneading train, provided with blades and actuated by a simple or complex rotation movement inside the tank.

Lors des opérations de maintenance, une porte de service autorise l'accès au compartiment interne de la cuve, notamment afin de permettre le nettoyage de la cuve, le changement de pièces d'usure ou encore de simples réparations.During maintenance operations, a service door allows access to the internal compartment of the tank, in particular to allow the cleaning of the tank, the change of wear parts or simple repairs.

Pour des raisons de sécurité, cette porte de service est équipée d'un dispositif de sécurité à double point de verrouillage, interdisant l'ouverture de la porte, notamment lorsque l'organe mobile, c'est-à-dire le train de malaxage, est actif.For safety reasons, this service door is equipped with a safety device with a double locking point, preventing the opening of the door, especially when the moving part, that is to say the mixing train. , is active.

Ce dispositif de sécurité comprend, généralement, deux leviers de commande, pourvus de pênes et assujettis à l'ouvrant de la porte. Chaque pêne est apte à s'engager ou s'extraire d'une gâche du dormant, lors de la rotation du levier correspondant.This safety device comprises, generally, two control levers, provided with bolts and subject to the opening of the door. Each bolt is able to engage or extract a striker of the frame, during the rotation of the corresponding lever.

En outre, la rotation des leviers de commande peut être bloquée par l'intermédiaire de deux serrures. Chaque serrure permet d'immobiliser un des leviers dans une position de verrouillage.In addition, the rotation of the control levers can be blocked by means of two locks. Each lock makes it possible to immobilize one of the levers in a locking position.

La présente invention a pour but de proposer une porte, apte à fermer une ouverture d'un compartiment interne, notamment d'une cuve d'un malaxeur, équipée d'un dispositif de sécurité simplifié et à moindre coût.The present invention aims to provide a door, adapted to close an opening of an internal compartment, in particular of a tank of a mixer, equipped with a simplified safety device and at a lower cost.

D'autres buts de l'invention apparaîtront au cours de la description qui va suivre, qui n'est donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects of the invention will become apparent from the description which follows, which is given for information only and which does not have purpose of limiting it.

L'invention concerne une porte, apte à fermer une ouverture d'un compartiment interne intégrant au moins un organe mobile, notamment moteur, et potentiellement dangereux, notamment destinée pour autoriser l'accès à une cuve d'un malaxeur afin de permettre des opérations de maintenance, constituée par un ouvrant articulé, notamment par charnière ou paumelle à un dormant, ladite porte étant équipée d'un dispositif de sécurité à double point de verrouillage et actionné par deux leviers de commande, chaque levier étant pourvu d'un pêne, apte à s'engager avec une gâche en position de verrouillage, ou s'extraire de ladite gâche lors de la rotation dudit levier correspondant, le dispositif de sécurité présentant, en outre, des moyens de blocage commandés, interdisant l'ouverture de la porte, au moins lorsque ledit organe mobile est actif.The invention relates to a door, able to close an opening of an internal compartment integrating at least one movable member, in particular motor, and potentially dangerous, in particular intended to allow access to a tank of a mixer to allow operations maintenance, constituted by an articulated opening, in particular by hinge or hinge to a frame, said door being equipped with a safety device with double locking point and actuated by two control levers, each lever being provided with a bolt, adapted to engage with a striker in the locking position, or remove from said striker during the rotation of said corresponding lever, the safety device further having controlled locking means, prohibiting the opening of the door at least when said movable member is active.

Selon l'invention, les trajectoires d'ouverture et de fermeture des deux leviers de commande se chevauchent au moins partiellement, l'un des deux leviers, dit premier levier de commande, constituant un obstacle, en position de verrouillage pour l'autre levier, dit second levier de commande, lors du déverrouillage du dispositif de sécurité, lesdits moyens de blocage commandés étant constitués par une unique serrure apte à immobiliser ledit premier levier de commande en position de verrouillage.According to the invention, the opening and closing paths of the two control levers overlap at least partially, one of the two levers, said first control lever, constituting an obstacle, in the locking position for the other lever , said second control lever, when unlocking the safety device, said controlled locking means being constituted by a single lock adapted to immobilize said first control lever in the locking position.

L'invention sera mieux comprise à la lecture de la description suivante accompagnée des dessins en annexe parmi lesquels :

  • la figure 1 est une vue en perspective d'une porte conforme à l'invention selon un mode de réalisation, équipant un malaxeur à cuve fixe,
  • la figure 2 est une vue globale, en perspective, du malaxeur à cuve tel qu'illustré à la figure 1,
  • la figure 3 est une vue partielle, agrandie, de la porte telle qu'illustrée à la figure 1,
  • la figure 4 est une vue de face d'une double porte conforme à l'invention selon un second mode de réalisation.
The invention will be better understood on reading the following description accompanied by the appended drawings among which:
  • FIG. 1 is a perspective view of a door according to the invention according to one embodiment, equipping a fixed bowl mixer,
  • FIG. 2 is an overall perspective view of the bowl mixer as illustrated in FIG.
  • FIG. 3 is an enlarged partial view of the door as illustrated in FIG.
  • Figure 4 is a front view of a double door according to the invention according to a second embodiment.

L'invention concerne une porte 1, apte à fermer une ouverture d'un compartiment interne intégrant au moins un organe mobile, notamment moteur, et potentiellement dangereux, notamment destiné pour autoriser l'accès à une cuve d'un malaxeur afin de permettre des opérations de maintenance, constituée par un ouvrant 2 articulé, notamment par charnière ou paumelle 3 à un dormant 4.The invention relates to a door 1, able to close an opening an internal compartment incorporating at least one movable member, in particular a motor, and potentially dangerous, in particular intended to authorize access to a tank of a mixer in order to allow maintenance operations, constituted by an articulated opening 2, in particular by means of hinge or hinge 3 to a frame 4.

La porte 1 est équipée d'un dispositif de sécurité 5 à double point de verrouillage 61, 62.The door 1 is equipped with a safety device 5 with a double locking point 6 1 , 6 2 .

Le dispositif de sécurité 5 est actionné par deux leviers de commande 71, 72, chaque levier étant pourvu d'un pêne 8 apte à s'engager avec une gâche 9, en position de verrouillage, ou s'extraire de ladite gâche lors de la rotation dudit levier correspondant.The safety device 5 is actuated by two control levers 7 1 , 7 2 , each lever being provided with a bolt 8 adapted to engage with a latch 9, in the locking position, or to extract from said striker when rotation of said corresponding lever.

Le dispositif de sécurité présente, en outre, des moyens de blocage commandés 10, interdisant l'ouverture de la porte, au moins lorsque ledit organe mobile est actif.The safety device further has controlled locking means 10, prohibiting the opening of the door, at least when said movable member is active.

Selon l'invention, les trajectoires d'ouverture et de fermeture des deux leviers de commande 71, 72 se chevauchent, au moins partiellement. L'un des deux leviers, dit premier levier de commande 71 constitue un obstacle, en position de verrouillage, pour l'autre levier, dit second levier de commande 72, lors du déverrouillage du dispositif de sécurité 5. Les moyens de blocage commandés 10 sont constitués par une unique serrure 11 apte à immobiliser ledit premier levier de commande 71 en position de verrouillage.According to the invention, the opening and closing paths of the two control levers 7 1 , 7 2 overlap, at least partially. One of the two levers, said first control lever 7 1 is an obstacle, in the locked position, for the other lever, said second control lever 7 2 , when unlocking the safety device 5. The locking means controlled 10 are constituted by a single lock 11 adapted to immobilize said first control lever 7 1 in the locking position.

Ladite unique serrure 11 peut être un élément d'un dispositif de verrouillage à transfert de clé selon la norme européenne EN 1088, relative à la sécurité des machines.Said single lock 11 may be an element of a key transfer locking device according to the European standard EN 1088, relating to the safety of the machines.

Dans ce type de dispositif de verrouillage, la serrure de la porte et l'interrupteur, notamment marche/arrêt de la machine, qui comprend également une serrure, partagent une même clé transférable.In this type of locking device, the lock of the door and the switch, in particular on / off of the machine, which also includes a lock, share the same transferable key.

La caractéristique essentielle du système est que la clé est gardée captive soit dans la serrure de la porte, soit dans la serrure associée à l'interrupteur. La clé ne peut être libérée que lorsque la porte est fermée et bloquée. Cela permet le transfert de la clé de la porte vers l'interrupteur.The essential feature of the system is that the key is kept captive either in the lock of the door, or in the lock associated with the switch. The key can only be released when the door is closed and locked. This allows the transfer of the key from the door to the switch.

La fermeture de l'interrupteur a pour effet de retenir la clé, de sorte qu'elle ne puisse être enlevée tant que l'interrupteur est en position « marche ».Closing the switch will hold the key so that it can not be removed while the switch is in the "on" position.

Selon un autre exemple de réalisation, la serrure 11 est commandée électriquement et assure le blocage du premier levier de commande 71 tant que les moyens moteur de l'organe mobile sont sous tension.According to another embodiment, the lock 11 is electrically controlled and ensures the locking of the first control lever 7 1 as the motor means of the movable member are under tension.

Tels qu'illustrés et selon un exemple de réalisation, le premier et le second leviers de commande 71, 72 sont articulés à l'ouvrant 2 suivant deux axes de rotation parallèles pour pouvoir pivoter dans un même plan. Les gâches 9 des deux points de verrouillage 61, 62, sont situées de part et d'autre de l'ouverture du compartiment, assujetties au dormant.As illustrated and according to an exemplary embodiment, the first and the second control levers 7 1 , 7 2 are articulated to the opening 2 along two parallel axes of rotation to be able to pivot in the same plane. Strikes 9 of the two locking points 6 1 , 6 2 , are located on either side of the compartment opening, secured to the frame.

Chaque levier de commande 71, 72 peut présenter à son extrémité distale une poignée de commande 12. L'extrémité proximale du levier est pourvue du pêne de verrouillage 8. Le levier présente une articulation intermédiaire 13 située au voisinage de son extrémité proximale.Each control lever 7 1 , 7 2 may have at its distal end a control handle 12. The proximal end of the lever is provided with the locking bolt 8. The lever has an intermediate hinge 13 located near its proximal end.

Les gâches 9 peuvent être constituées chacune par un élément formant un crochet, apte à recevoir le pêne 8 du levier de commande 71,72.The strikes 9 may each consist of a hook-forming element adapted to receive the bolt 8 of the control lever 7 1 , 7 2 .

Tel qu'illustré à la figure 1 selon un exemple de réalisation, l'ouvrant 2 est équipé d'un levier de commande 71 inférieur et d'un levier de commande 72 supérieur. Les deux leviers sont sensiblement identiques, chacun de longueur supérieure à la moitié de la hauteur de la porte. Les gâches sont constituées par des éléments crochets.As illustrated in Figure 1 according to an exemplary embodiment, the opening 2 is equipped with a lower control lever 7 1 and a control lever 7 2 upper. The two levers are substantially identical, each longer than half the height of the door. The strikes are constituted by hook elements.

Le levier de commande 71 inférieur, tourne, dans le sens horaire, en ouverture, pour extraire de la gâche 9, le pêne 8. Le levier de commande 71 inférieur constitue un obstacle pour le levier de commande 72 supérieur, qui tourne, en ouverture, dans le sens anti-horaire.The lower control lever 7 1 rotates, in the clockwise direction, to open, to extract the latch 9, the bolt 8. The lower control lever 7 1 constitutes an obstacle for the upper control lever 2 , which rotates when opening, counter-clockwise.

Telle qu'illustrée, la serrure 11 est portée par un battant 14, articulé au dormant 4. La serrure 11 et son battant 14 peuvent être déplacés d'une position de contact dans laquelle ladite serrure vient recouvrir l'ouvrant 2, lorsque ce dernier est fermé, vers une position de dégagement permettant la rotation de l'ouvrant 2 et ainsi son ouverture.As illustrated, the lock 11 is carried by a leaf 14, articulated to the frame 4. The lock 11 and its wing 14 can be moved from a contact position in which said lock comes to cover the opening 2, when the latter is closed, to a release position allowing the rotation of the opening 2 and thus its opening.

Tel qu'illustré, l'ensemble battant 14/serrure 11 est articulé notamment par charnière au dormant 4, pour venir recouvrir le bord libre de l'ouvrant 2, côté opposé aux paumelles 3 de ce dernier.As illustrated, the casement assembly 14 / lock 11 is hinged in particular hinge to the frame 4, to cover the free edge of the opening 2, the opposite side to the hinges 3 of the latter.

La serrure 11 peut présenter un loquet et des moyens d'actionnement du loquet, permettant, soit d'engager le loquet dans une réservation de l'ouvrant 2 (non illustré) et ainsi la solidarisation de la serrure 11 et de son battant 14 à l'ouvrant 2, dans ladite position de contact, soit d'extraire le loquet de la réservation permettant d'escamoter, en rotation, la serrure 11 et son battant 14 dans ladite position de dégagement.The lock 11 may have a latch and means for actuating the latch, allowing either to engage the latch in a reservation of the opening 2 (not shown) and thus the locking of the lock 11 and its flap 14 to the opening 2, in said contact position, or to extract the latch of the reservation for retracting, in rotation, the lock 11 and its flap 14 in said release position.

La serrure 11 ou son battant peut être muni d'un élément 15 de solidarisation du premier levier de commande 71 pour immobiliser en rotation ledit premier levier lorsque la serrure 11 et le battant 14 sont dans la position dite de contact avec l'ouvrant 2.The lock 11 or its flap may be provided with an element 15 for securing the first control lever 7 1 to immobilize in rotation said first lever when the lock 11 and the flap 14 are in the so-called contact position with the sash 2 .

Tel qu'illustré à la figure 2, l'élément 15 de solidarisation peut être constitué par une tige assujettie à l'ensemble serrure 11/battant 14. La tige présente un orifice 16 destiné à engager avec un ergot 17 du premier levier de commande 71 pour immobiliser sa position en rotation.As illustrated in Figure 2, the fastening element 15 may be constituted by a rod secured to the lock assembly 11 / flapper 14. The rod has an orifice 16 for engaging with a lug 17 of the first control lever 7 1 to immobilize its rotational position.

Telle qu'illustrée à la figure 4, l'invention peut être adaptée à une double porte. La double porte présente une première porte 11 apte à venir recouvrir la deuxième porte 12 en position de fermeture, bloquant cette dernière.As illustrated in Figure 4, the invention can be adapted to a double door. The double door has a first door 1 1 adapted to come to cover the second door 1 2 in the closed position, blocking the latter.

La première porte 11 est équipée du dispositif de sécurité 5 à double point de verrouillage 61, 62 avec ses deux leviers de commande 71, 72.The first door 1 1 is equipped with the safety device 5 with double locking point 6 1 , 6 2 with its two control levers 7 1 , 7 2 .

Le premier levier 71 constitue un obstacle pour le second levier 72 lors du déverrouillage. Le dispositif de sécurité présente une unique serrure 11, apte à verrouiller le premier levier 71, en position de verrouillage.The first lever 7 1 constitutes an obstacle for the second lever 7 2 during unlocking. The safety device has a single lock 11, able to lock the first lever 7 1 , in the locking position.

La serrure 11 est portée par un battant 14 articulé à la seconde porte 12. La double porte peut présenter un troisième point de verrouillage avec une gâche 9 et un troisième levier 75 sur la deuxième porte 12.The lock 11 is carried by a leaf 14 hinged to the second door 1 2 . The double door may have a third locking point with a latch 9 and a third lever 7 5 on the second door 1 2 .

L'invention trouvera une utilisation particulière comme porte de service pour permettre l'accès à la cuve d'un malaxeur, notamment à cuve fixe, pour le brassage de composants secs ou humides, notamment pour la préparation de béton.The invention will find particular use as a service door to allow access to the tank of a mixer, including fixed bowl, for mixing dry or wet components, especially for the preparation of concrete.

Naturellement, d'autres modes de mise en oeuvre, à la portée de l'homme de l'art, auraient pu être envisagés sans pour autant sortir du cadre de l'invention.Naturally, other modes of implementation, within the reach of those skilled in the art, could have been envisaged without departing from the scope of the invention.

Claims (10)

Porte (1), apte à fermer une ouverture d'un compartiment interne intégrant au moins un organe mobile, notamment moteur, et potentiellement dangereux, notamment destinée pour autoriser l'accès à la cuve d'un malaxeur afin de permettre des opérations de maintenance, constituée par un ouvrant (2) articulé, notamment par charnière ou paumelles (3), à un dormant (4), ladite porte (1) étant équipée d'un dispositif de sécurité (5) à double point de verrouillage (61, 62) et actionné par deux leviers de commande (71, 72), chaque levier (71, 72) étant pourvu d'un pêne (8), apte à s'engager avec une gâche (9), en position de verrouillage, ou s'extraire de ladite gâche lors de la rotation dudit levier correspondant, le dispositif de sécurité (5) présentant, en outre, des moyens de blocage commandés (10), interdisant l'ouverture de la porte, au moins lorsque ledit organe mobile est actif, caractérisé en ce que les trajectoires d'ouverture et de fermeture des deux leviers de commande (71, 72) se chevauchent, au moins partiellement, l'un des deux leviers, dit premier levier de commande (71), constituant un obstacle, en position de verrouillage, pour l'autre levier, dit second levier de commande (72), lors du déverrouillage du dispositif de sécurité (5), lesdits moyens de blocage commandés (10) étant constitués par une unique serrure (11) apte à immobiliser ledit premier levier de commande (71) en position de verrouillage.Door (1), able to close an opening of an internal compartment incorporating at least one movable member, in particular motor, and potentially dangerous, in particular intended to allow access to the tank of a mixer to allow maintenance operations constituted by an opening (2) articulated, in particular by hinge or hinges (3), to a frame (4), said door (1) being equipped with a safety device (5) with a double locking point (6 1 , 6 2 ) and actuated by two control levers (7 1 , 7 2 ), each lever (7 1 , 7 2 ) being provided with a bolt (8), adapted to engage with a striker (9), in the locking position, or out of said striker during the rotation of said corresponding lever, the safety device (5) having, in addition, controlled locking means (10), prohibiting the opening of the door, to least when said movable member is active, characterized in that the opening and closing paths of the two control levers (7 1 , 7 2 ) overlap, at least partially, one of the two levers, said first control lever (7 1 ), constituting an obstacle, in the locked position, for the other lever, said second control lever (7 2 ), during the unlocking of the safety device (5), said controlled locking means (10) being constituted by a single lock (11) adapted to immobilize said first control lever (7 1 ) in the locking position. Porte selon la revendication 1, dans laquelle la serrure (11) est commandée électriquement.Door according to claim 1, wherein the lock (11) is electrically controlled. Porte selon la revendication 1 ou 2, dans laquelle le premier et le second leviers de commande sont articulés à l'ouvrant (2) suivant deux axes de rotation parallèles pour pouvoir pivoter dans un même plan, les gâches (9) des deux points de verrouillage (61, 62) étant situées de part et d'autre de l'ouverture du compartiment, assujetties au dormant (4).Door according to claim 1 or 2, wherein the first and second control levers are articulated to the opening (2) along two parallel axes of rotation to be able to pivot in the same plane, the latches (9) of the two points of rotation. locking (6 1 , 6 2 ) being located on either side of the compartment opening, secured to the frame (4). Porte selon la revendication 3, dans laquelle chaque levier de commande (71, 72) présente à son extrémité distale une poignée de manoeuvre (12), l'extrémité proximale du levier étant pourvue du pêne de verrouillage (8), le levier présentant une articulation intermédiaire (13) située au voisinage de son extrémité proximale.Door according to claim 3, wherein each control lever (7 1 , 7 2 ) has at its distal end an operating handle (12), the proximal end of the lever being provided with the locking bolt. locking (8), the lever having an intermediate hinge (13) located near its proximal end. Porte selon l'une des revendications 1 à 4, dans laquelle les gâches (9) sont constituées chacune par un élément formant un crochet, apte à recevoir le pêne (8) du levier de commande.Door according to one of claims 1 to 4, wherein the latches (9) are each constituted by a member forming a hook, adapted to receive the bolt (8) of the control lever. Porte selon l'une des revendications 1 à 5, dans laquelle la serrure (11) est portée par un battant (14), articulé au dormant (4), ou encore à une autre porte (12), ladite serrure (11) et son battant pouvant être déplacés d'une position de contact dans laquelle ladite serrure vient recouvrir l'ouvrant (2), lorsque ce dernier est fermé, vers une position de dégagement permettant la rotation de l'ouvrant et ainsi son ouverture.Door according to one of claims 1 to 5, wherein the lock (11) is carried by a leaf (14), articulated to the frame (4), or to another door (1 2 ), said lock (11) and its flap can be moved from a contact position in which said lock comes to cover the opening (2), when the latter is closed, to a release position allowing the rotation of the opening and thus its opening. Porte selon la revendication 6, dans laquelle la serrure (11) présente un loquet et des moyens d'actionnement du loquet, permettant, soit d'engager ledit loquet dans une réservation de l'ouvrant (2) et ainsi la solidarisation de la serrure (11) et de son battant (14) à l'ouvrant (2), dans ladite position de contact, soit d'extraire le loquet de la réservation, permettant ainsi d'escamoter la serrure (11) et son battant (14) dans ladite position de dégagement.Door according to claim 6, wherein the lock (11) has a latch and actuating means of the latch, allowing either to engage said latch in a reservation of the opening (2) and thus the fastening of the lock (11) and its flap (14) to the opening (2) in said contact position, or to extract the latch of the reservation, thus allowing to retract the lock (11) and its flap (14) in said release position. Porte selon la revendication 6 ou 7, dans laquelle la serrure (11) ou le battant (14) est muni d'un élément (15) de solidarisation du premier levier de commande (71), immobilisant en rotation ledit premier levier lorsque la serrure (11) et ledit battant (14) sont dans la position dite de contact avec l'ouvrant (2).Door according to claim 6 or 7, wherein the lock (11) or the leaf (14) is provided with a member (15) for securing the first control lever (7 1 ), immobilizing in rotation said first lever when the lock (11) and said flap (14) are in the so-called contact position with the opening (2). Porte selon la revendication 8, dans laquelle l'élément (15) de solidarisation est constitué par une tige assujettie à l'ensemble serrure (11)/battant (14), la tige présentant un orifice (16) destiné à engager avec un ergot (17) du premier levier de commande (71) pour immobiliser sa position en rotation.Door according to claim 8, wherein the element (15) for securing is constituted by a rod secured to the lock assembly (11) / flapper (14), the rod having an orifice (16) for engaging with a lug (17) of the first control lever (7 1 ) to immobilize its rotational position. Utilisation d'une porte selon la revendication 1, comme porte de service pour permettre l'accès à la cuve d'un malaxeur, notamment à cuve fixe, pour le brassage de composants secs ou humides, notamment pour la préparation de béton.Use of a door according to claim 1, as a service door to allow access to the tank of a mixer, in particular with a fixed bowl, for mixing dry or wet components, especially for concrete preparation.
EP07370010A 2006-05-18 2007-05-10 Door capable of closing an opening of an internal compartment integrating at least the potentially dangerous moving element, in particular the actuator Not-in-force EP1857618B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0604466A FR2901170B1 (en) 2006-05-18 2006-05-18 DOOR, SUITABLE FOR CLOSING AN OPENING OF AN INTERNAL COMPARTMENT INCLUDING AT LEAST THE MOBILE ORGAN, IN PARTICULAR MOTOR, AND POTENTIALLY HAZARDOUS.

Publications (2)

Publication Number Publication Date
EP1857618A1 true EP1857618A1 (en) 2007-11-21
EP1857618B1 EP1857618B1 (en) 2010-07-07

Family

ID=37726676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07370010A Not-in-force EP1857618B1 (en) 2006-05-18 2007-05-10 Door capable of closing an opening of an internal compartment integrating at least the potentially dangerous moving element, in particular the actuator

Country Status (4)

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EP (1) EP1857618B1 (en)
AT (1) ATE473337T1 (en)
DE (1) DE602007007541D1 (en)
FR (1) FR2901170B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2446956A (en) * 2007-02-23 2008-08-27 Campbell Brown Mixing apparatus with safety cut-out
ITUD20110009A1 (en) * 2011-01-27 2012-07-28 Le Officine Riunite Udine S P A EQUIPMENT WITH ROTATING DRUM, AS A AUTOBETONIERA
CN113478656A (en) * 2021-07-01 2021-10-08 包头市公路工程股份有限公司 Construction method for guaranteeing safe application of single-wheel dynamic break contact of water-stable mixing station in cleaning of mixing cylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111775332B (en) * 2020-06-04 2021-08-17 儋州泰达实业有限公司 Powder adding device for concrete preparation

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Publication number Priority date Publication date Assignee Title
DE82631C (en) *
DE1020895B (en) * 1956-05-25 1957-12-12 Siegener A G Fuer Eisenkonstru Quarter-turn lock for gas-tight, pressure-resistant doors
FR1417517A (en) * 1964-12-07 1965-11-12 Safety closure, in particular for the opening shutter of a motor car door
DE2752855A1 (en) * 1977-11-26 1979-05-31 Otto Conrads Door or window rocking lever security mechanism - has vertical axis on wing frame, with hooked arm turned across lever
CN2767107Y (en) * 2005-01-28 2006-03-29 上海斯加科机械有限公司 Planetary type motor reducer of concrete mixer
CN2767105Y (en) * 2005-01-28 2006-03-29 上海斯加科机械有限公司 Concrete mixer access door

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE82631C (en) *
DE1020895B (en) * 1956-05-25 1957-12-12 Siegener A G Fuer Eisenkonstru Quarter-turn lock for gas-tight, pressure-resistant doors
FR1417517A (en) * 1964-12-07 1965-11-12 Safety closure, in particular for the opening shutter of a motor car door
DE2752855A1 (en) * 1977-11-26 1979-05-31 Otto Conrads Door or window rocking lever security mechanism - has vertical axis on wing frame, with hooked arm turned across lever
CN2767107Y (en) * 2005-01-28 2006-03-29 上海斯加科机械有限公司 Planetary type motor reducer of concrete mixer
CN2767105Y (en) * 2005-01-28 2006-03-29 上海斯加科机械有限公司 Concrete mixer access door

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2446956A (en) * 2007-02-23 2008-08-27 Campbell Brown Mixing apparatus with safety cut-out
ITUD20110009A1 (en) * 2011-01-27 2012-07-28 Le Officine Riunite Udine S P A EQUIPMENT WITH ROTATING DRUM, AS A AUTOBETONIERA
CN113478656A (en) * 2021-07-01 2021-10-08 包头市公路工程股份有限公司 Construction method for guaranteeing safe application of single-wheel dynamic break contact of water-stable mixing station in cleaning of mixing cylinder

Also Published As

Publication number Publication date
FR2901170A1 (en) 2007-11-23
DE602007007541D1 (en) 2010-08-19
ATE473337T1 (en) 2010-07-15
FR2901170B1 (en) 2008-07-18
EP1857618B1 (en) 2010-07-07

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