EP1739274A1 - Anti-dropping device for an industrial door - Google Patents

Anti-dropping device for an industrial door Download PDF

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Publication number
EP1739274A1
EP1739274A1 EP06356074A EP06356074A EP1739274A1 EP 1739274 A1 EP1739274 A1 EP 1739274A1 EP 06356074 A EP06356074 A EP 06356074A EP 06356074 A EP06356074 A EP 06356074A EP 1739274 A1 EP1739274 A1 EP 1739274A1
Authority
EP
European Patent Office
Prior art keywords
nut
protection device
support
fall protection
drive shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06356074A
Other languages
German (de)
French (fr)
Inventor
Antonello La Marca
Anne-Sophie Panseri
Romain Simon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maviflex SAS
Original Assignee
Maviflex SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maviflex SAS filed Critical Maviflex SAS
Publication of EP1739274A1 publication Critical patent/EP1739274A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/62—Counterweighting arrangements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/003—Anti-dropping devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Definitions

  • the present invention relates to a parachute type of protection device for blocking the accidental fall of the flexible stackable or rollable deck of a vertical movement handling door.
  • Parachute devices which more particularly concern doors with metal curtain. It should be noted that the metal curtain doors have an operating speed of the order of 0.2 meters per second, ie a speed of rotation of the drive shaft of 16 revolutions per minute.
  • the parachute devices adapted to this type of metal roller door are triggered when the speed of rotation of the drive shaft reaches 27 rpm.
  • the fast handling doors stackable curtain or flexible deck generally have speeds of rotation of the drive shaft, during the descent of said deck, of the order of 70 rpm.
  • the purpose of the fall protection device according to the present invention is to overcome the above drawbacks by means of a structure mounted on the drive shaft and allowing the compression of a spring during the descent of the flexible, stackable or roll-up apron of a vertically moving handling door.
  • the fall protection device comprises compression means which are directly mounted on the output shaft of the drive shaft in order to block the flexible apron during an accidental fall of the latter.
  • the fall protection device comprises compression means which consist of a support fixed on the corresponding upright, a nut locked in rotation inside the support, a trapezoidal thread formed on the output shaft of the drive shaft for driving in translation of the nut and a compression spring disposed around the output shaft and bearing against the support.
  • the fall protection device comprises a nut which is locked in rotation about the axis of the drive shaft by guide rods integral with the support.
  • the fall protection device comprises a support which delimits a protective space which comprises on the one hand in the middle the output axis and on the other hand around and equidistant from the axis of exit of the rods. guidance and maintenance.
  • the fall protection device comprises adjustment means for preventing the actuation of the compression means before a given height of the deck of the handling door.
  • the fall protection device comprises adjustment means which are constituted by a free space of distance d provided between a face of the nut and the face facing the spring.
  • the fall protection device comprises adjustment means whose distance of the free space d provided between the face of the nut and the face facing the spring is adjustable during production of the handling door. .
  • FIG. 1 shows a handling door 1 comprising two lateral uprights 2 and 3 which are generally fixed against the vertical walls of an opening to be obstructed.
  • the opposite and vertical uprights 2 and 3 are interconnected, in the upper part of the handling door 1, by a drive shaft or drum 4 for moving a flexible apron between an open position and a position closure.
  • the flexible apron generally comprises sleeves into which horizontal reinforcing crosspieces are inserted, the ends of which cooperate with a guiding device 5, forming a slide, provided on each upright 2 and 3.
  • Each guiding device 5 can be made by two opposite slides 6 which consist, for example, either by two straps stretched and flexible, or by two semi-rigid or rigid blades arranged opposite each other to form on each amount 2 and 3, and over the entire height of the latter, a slide for guiding the curtain or flexible apron.
  • the drive shaft 4 of the handling door 1 cooperates on the one hand with a gear motor fixed in the upper part of the upright 2 and on the other hand with a fall protection device 7 fixed in the upper part of the upright 3, to block the accidental fall of the stackable flexible deck or rollable handling door 1 to vertical movement.
  • FIGS. 2 and 3 show the fall protection device 7 according to the present invention which is mounted directly on the output shaft 8 of the drive shaft 4 of the handling door 1.
  • the protective device 7 comprises a support 9 fixed on the frame of the vertical upright 2 of the handling door 1 and in the extension of the output shaft 8 of the drive shaft 4.
  • the support 9 delimits a protection space 10 which comprises on the one hand in the middle the output axis 8 and, on the other hand, around and at equal distance from the output shaft 8 of the guide and holding rods 11.
  • the protection device 7 comprises a nut 12 in the form of a disc cooperating in its middle with a trapezoidal threaded screw 13 made on the portion of the output shaft 8.
  • the nut 12 is traversed by the guide rods 11 so as to be able to move in translation around the latter, during the rotation of the output shaft 8.
  • the protective device 7 comprises a compression spring 14 arranged coaxially around the outlet axis 8 and near a wall of the support 9.
  • the compression of the spring 14 is obtained by the support of the nut 12 against it during the displacement of said nut.
  • the displacement of the latter is achieved by the rotation of the threaded portion 13 of the drive shaft 4 provided at its output axis 8.
  • the compression of the spring 14 is determined in such a way that the spring torque is sufficient to balance at least the weight of the flexible deck and at best the dynamic effort. If the dynamic force of the deck is balanced by the return torque of the spring 14, the deck will be stopped in a short time when breaking the kinematic chain of the handling door.
  • the blocking of the apron can be limited between the ground and 2.50 meters high.
  • This arrangement is obtained by creating a free space of distance d between the face of the nut 12 and the face facing the spring 14.
  • the distance of the free space d provided between the face of the nut 12 and the face facing the spring 14 is adjustable during production of the handling door 1.
  • This free space d can create a so-called "delay" effect which has the advantage of reducing the compression force of the spring 14 and therefore the power of the driving motor of the apron of the handling door.
  • the fall protection device according to the present invention is adjustable according to the technical characteristics of each handling door.
  • the choice of the compression spring 14 is adapted to the dynamic force of the deck during its motorized descent.
  • the position of the nut 12 on the threaded portion 13 of the output shaft 8 is a function of the height of the deck of the handling door 1.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

The device has a support (9) fixed at a vertical upright (2), and a nut (12) blocked in rotation to the interior of the support. An acme screw thread (13) is arranged on an output axle (8) of a drive shaft (4) and permits to drive the nut in translation, and a compression spring (14) is arranged around the output axle, where a free space is created between a side of the nut and a side opposite to the compression spring.

Description

La présente invention est relative à un dispositif de protection de type parachute permettant de bloquer la chute accidentelle du tablier souple empilable ou enroulable d'une porte de manutention à déplacement vertical.The present invention relates to a parachute type of protection device for blocking the accidental fall of the flexible stackable or rollable deck of a vertical movement handling door.

On connaît des dispositifs de parachute qui concernent plus particulièrement les portes à rideau métallique. On note que les portes à rideau métallique ont une vitesse de fonctionnement de l'ordre de 0.2 mètre seconde, soit une vitesse de rotation de l'arbre d'entraînement de 16 tours minute.Parachute devices are known which more particularly concern doors with metal curtain. It should be noted that the metal curtain doors have an operating speed of the order of 0.2 meters per second, ie a speed of rotation of the drive shaft of 16 revolutions per minute.

Les dispositifs de parachute adaptés à ce type de porte à rideau métallique se déclenchent lorsque la vitesse de rotation de l'arbre d'entraînement atteint 27 tours minute.The parachute devices adapted to this type of metal roller door are triggered when the speed of rotation of the drive shaft reaches 27 rpm.

Les portes de manutention rapide à rideau empilable ou tablier souple ont généralement des vitesses de rotation de l'arbre d'entraînement, lors de la descente dudit tablier, de l'ordre de 70 tours minute.The fast handling doors stackable curtain or flexible deck generally have speeds of rotation of the drive shaft, during the descent of said deck, of the order of 70 rpm.

On constate que la vitesse de rotation en fonctionnement normal des portes de manutention rapide avec tablier souple est supérieure au seuil de déclenchement des dispositifs de parachute commercialisés à ce jour.It can be seen that the speed of rotation in normal operation of the fast handling doors with flexible apron is greater than the trigger threshold of the parachute devices marketed to date.

Ainsi, le dispositif de protection antichute suivant la présente invention a pour objet de remédier aux inconvénients ci-dessus par l'intermédiaire d'une structure montée sur l'arbre d'entraînement et permettant la compression d'un ressort lors de la descente du tablier souple empilable ou enroulable d'une porte de manutention à déplacement vertical.Thus, the purpose of the fall protection device according to the present invention is to overcome the above drawbacks by means of a structure mounted on the drive shaft and allowing the compression of a spring during the descent of the flexible, stackable or roll-up apron of a vertically moving handling door.

Le dispositif de protection antichute suivant la présente invention comprend des moyens de compression qui sont directement montés sur l'axe de sortie de l'arbre d'entraînement afin de bloquer le tablier souple lors d'une chute accidentelle de ce dernier.The fall protection device according to the present invention comprises compression means which are directly mounted on the output shaft of the drive shaft in order to block the flexible apron during an accidental fall of the latter.

Le dispositif de protection antichute suivant la présente invention comprend des moyens de compression qui sont constitués d'un support fixé sur le montant correspondant, d'un écrou bloqué en rotation à l'intérieur du support, d'un filet trapézoïdal ménagé sur l'axe de sortie de l'arbre d'entraînement permettant l'entraînement en translation de l'écrou et d'un ressort de compression disposé autour de l'axe de sortie et en appui contre le support.The fall protection device according to the present invention comprises compression means which consist of a support fixed on the corresponding upright, a nut locked in rotation inside the support, a trapezoidal thread formed on the output shaft of the drive shaft for driving in translation of the nut and a compression spring disposed around the output shaft and bearing against the support.

Le dispositif de protection antichute suivant la présente invention comprend un écrou qui est bloqué en rotation autour de l'axe de l'arbre d'entraînement par des tiges de guidage solidaires du support.The fall protection device according to the present invention comprises a nut which is locked in rotation about the axis of the drive shaft by guide rods integral with the support.

Le dispositif de protection antichute suivant la présente invention comprend un support qui délimite un espace de protection qui comporte d'une part en son milieu l'axe de sortie et d'autre part autour et à égale distance de l'axe de sortie des tiges de guidage et de maintien .The fall protection device according to the present invention comprises a support which delimits a protective space which comprises on the one hand in the middle the output axis and on the other hand around and equidistant from the axis of exit of the rods. guidance and maintenance.

Le dispositif de protection antichute suivant la présente invention comprend des moyens de réglage permettant d'empêcher l'actionnement des moyens de compression avant une hauteur déterminée du tablier de la porte de manutention.The fall protection device according to the present invention comprises adjustment means for preventing the actuation of the compression means before a given height of the deck of the handling door.

Le dispositif de protection antichute suivant la présente invention comprend des moyens de réglage qui sont constitués par un espace libre de distance d prévu entre une face de l'écrou et la face en vis à vis du ressort.The fall protection device according to the present invention comprises adjustment means which are constituted by a free space of distance d provided between a face of the nut and the face facing the spring.

Le dispositif de protection antichute suivant la présente invention comprend des moyens de réglage dont la distance de l'espace libre d prévue entre la face de l'écrou et la face en vis à vis du ressort est réglable lors de réalisation de la porte de manutention.The fall protection device according to the present invention comprises adjustment means whose distance of the free space d provided between the face of the nut and the face facing the spring is adjustable during production of the handling door. .

La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Figure 1 est une vue en perspective illustrant le cadre d'une porte de manutention rapide à tablier souple suivant la présente invention.
  • Figures 2 et 3 sont des vues en perspective représentant en détail le dispositif de protection antichute pour porte de manutention suivant la présente invention.
The following description with reference to the accompanying drawings, given by way of non-limiting examples, will provide a better understanding of the invention, the characteristics it has and the advantages that it is likely to provide:
  • Figure 1 is a perspective view illustrating the frame of a rapid handling door with flexible apron according to the present invention.
  • Figures 2 and 3 are perspective views showing in detail the fall protection device for a handling door according to the present invention.

On a montré en figure 1 une porte de manutention 1 comportant deux montants latéraux 2 et 3 qui sont généralement fixés contre les parois verticales d'une ouverture à obstruer.FIG. 1 shows a handling door 1 comprising two lateral uprights 2 and 3 which are generally fixed against the vertical walls of an opening to be obstructed.

Les montants opposés et verticaux 2 et 3 sont reliés entre eux, dans la partie supérieure de la porte de manutention 1, par un arbre ou tambour d'entraînement 4 permettant le déplacement d'un tablier souple entre une position d'ouverture et une position de fermeture.The opposite and vertical uprights 2 and 3 are interconnected, in the upper part of the handling door 1, by a drive shaft or drum 4 for moving a flexible apron between an open position and a position closure.

On note que le tablier souple comporte généralement des fourreaux dans lesquels sont introduites des traverses horizontales de renfort dont les extrémités coopèrent avec un dispositif de guidage 5, formant glissière, prévu sur chaque montant 2 et 3.It should be noted that the flexible apron generally comprises sleeves into which horizontal reinforcing crosspieces are inserted, the ends of which cooperate with a guiding device 5, forming a slide, provided on each upright 2 and 3.

Chaque dispositif de guidage 5 peut être réalisé par deux coulisses opposées 6 qui sont constituées, par exemple, soit par deux sangles tendues et souples, soit par deux lames semi-rigides ou rigides disposées l'une en face de l'autre pour constituer sur chaque montant 2 et 3, et sur toute la hauteur de ces derniers, une glissière pour le guidage du rideau ou tablier souple.Each guiding device 5 can be made by two opposite slides 6 which consist, for example, either by two straps stretched and flexible, or by two semi-rigid or rigid blades arranged opposite each other to form on each amount 2 and 3, and over the entire height of the latter, a slide for guiding the curtain or flexible apron.

L'arbre d'entraînement 4 de la porte de manutention 1 coopère d'une part avec un moto réducteur fixé dans la partie supérieure du montant 2 et d'autre part avec un dispositif de protection antichute 7, fixé dans la partie supérieure du montant 3, permettant de bloquer la chute accidentelle du tablier souple empilable ou enroulable de la porte de manutention 1 à déplacement vertical.The drive shaft 4 of the handling door 1 cooperates on the one hand with a gear motor fixed in the upper part of the upright 2 and on the other hand with a fall protection device 7 fixed in the upper part of the upright 3, to block the accidental fall of the stackable flexible deck or rollable handling door 1 to vertical movement.

On a représenté en figures 2 et 3, le dispositif de protection antichute 7 suivant la présente invention qui est monté directement sur l'axe de sortie 8 de l'arbre d'entraînement 4 de la porte de manutention 1.FIGS. 2 and 3 show the fall protection device 7 according to the present invention which is mounted directly on the output shaft 8 of the drive shaft 4 of the handling door 1.

Le dispositif de protection 7 comporte un support 9 fixé sur la cadre du montant vertical 2 de la porte de manutention 1 et dans le prolongement de l'axe de sortie 8 de l'arbre d'entraînement 4.The protective device 7 comprises a support 9 fixed on the frame of the vertical upright 2 of the handling door 1 and in the extension of the output shaft 8 of the drive shaft 4.

Le support 9 délimite un espace de protection 10 qui comporte d'une part en son milieu l'axe de sortie 8 et d'autre part autour et à égale distance de l'axe de sortie 8 des tiges de guidage et de maintien 11.The support 9 delimits a protection space 10 which comprises on the one hand in the middle the output axis 8 and, on the other hand, around and at equal distance from the output shaft 8 of the guide and holding rods 11.

En partant du montant vertical 2, le dispositif de protection 7 comporte un écrou 12 en forme de disque coopérant en son milieu avec une vis à filet trapézoïdal 13 réalisée sur la portion de l'axe de sortie 8.Starting from the vertical upright 2, the protection device 7 comprises a nut 12 in the form of a disc cooperating in its middle with a trapezoidal threaded screw 13 made on the portion of the output shaft 8.

L'écrou 12 est traversé par les tiges de guidage 11 afin de pouvoir se déplacer en translation autour de ces dernières, lors de la rotation de l'axe de sortie 8.The nut 12 is traversed by the guide rods 11 so as to be able to move in translation around the latter, during the rotation of the output shaft 8.

A l'opposé de l'écrou 12 le dispositif de protection 7 comporte un ressort de compression 14 disposé coaxialement autour de l'axe de sortie 8 et à proximité d'une paroi du support 9.Opposite the nut 12, the protective device 7 comprises a compression spring 14 arranged coaxially around the outlet axis 8 and near a wall of the support 9.

Aux vues de la description qui précède, on comprend aisément le fonctionnement du dispositif de protection antichute 7 suivant la présente invention.In view of the above description, it is easy to understand the operation of the fall protection device 7 according to the present invention.

La compression du ressort 14 est obtenue par l'appui de l'écrou 12 contre celui-ci lors du déplacement dudit écrou. Le déplacement de ce dernier est réalisé par la rotation de la partie filetée 13 de l'arbre d'entraînement 4 prévue au niveau de son axe de sortie 8.The compression of the spring 14 is obtained by the support of the nut 12 against it during the displacement of said nut. The displacement of the latter is achieved by the rotation of the threaded portion 13 of the drive shaft 4 provided at its output axis 8.

La compression du ressort 14 est déterminée de telle façon que le couple ressort est suffisant pour équilibrer au minimum le poids du tablier souple et au mieux l'effort dynamique. Si l'effort dynamique du tablier est équilibré par le couple de rappel du ressort 14, le tablier va être stoppé dans un temps court lors de la rupture de la chaîne cinématique de la porte de manutention.The compression of the spring 14 is determined in such a way that the spring torque is sufficient to balance at least the weight of the flexible deck and at best the dynamic effort. If the dynamic force of the deck is balanced by the return torque of the spring 14, the deck will be stopped in a short time when breaking the kinematic chain of the handling door.

Ainsi , on note que les chocs potentiels sur les personnes se trouvant sous le tablier en cas de chute accidentelle de celui-ci sont supprimés.Thus, it is noted that the potential shocks on persons under the apron in case of accidental fall thereof are removed.

De façon préférable, le blocage du tablier peut être limité entre le sol et 2,50 mètres de haut.Preferably, the blocking of the apron can be limited between the ground and 2.50 meters high.

Cette disposition est obtenue en créant un espace libre de distance d entre la face de l'écrou 12 et la face en vis à vis du ressort 14. La distance de l'espace libre d prévue entre la face de l'écrou 12 et la face en vis à vis du ressort 14 est réglable lors de réalisation de la porte de manutention 1.This arrangement is obtained by creating a free space of distance d between the face of the nut 12 and the face facing the spring 14. The distance of the free space d provided between the face of the nut 12 and the face facing the spring 14 is adjustable during production of the handling door 1.

Cet espace libre d permet de créer un effet dit de «retard» qui a pour intérêt de réduire l'effort de compression du ressort 14 et donc la puissance du moteur d'entraînement du tablier de la porte de manutention.This free space d can create a so-called "delay" effect which has the advantage of reducing the compression force of the spring 14 and therefore the power of the driving motor of the apron of the handling door.

Cette disposition n'a pas de conséquence sur la sécurité des personnes car le tablier se trouve arrêté dans sa course accidentelle à une hauteur comprise entre 2m50 et 2m80, ceci afin de protéger le moto-réducteur principal et le moyen de compression du dispositif lui-même. En effet, si ce n'était pas le cas en fonctionnement normal de descente, le moto-réducteur rencontrerait un effort résistant sur toute la hauteur de la descente, ce qui pourrait altérer sa longévité. Le moyen de compression serait également sollicité sur toute la hauteur de la descente, ce qui réduirait sa durée de vie.This provision has no effect on the safety of persons because the deck is stopped in its accidental travel at a height of between 2m50 and 2m80, this to protect the main gear motor and the compression means of the device itself. even. Indeed, if this was not the case in normal downhill operation, the geared motor would encounter a resisting force over the entire height of the descent, which could affect its longevity. The compression means would also be solicited throughout the height of the descent, which would reduce its life.

Le dispositif de protection antichute suivant la présente invention est réglable en fonction des caractéristiques techniques de chaque porte de manutention. Le choix du ressort de compression 14 est adapté à l'effort dynamique du tablier lors de sa descente motorisée. La position de l'écrou 12 sur la partie filetée 13 de l'axe de sortie 8 est fonction de la hauteur du tablier de la porte de manutention 1.The fall protection device according to the present invention is adjustable according to the technical characteristics of each handling door. The choice of the compression spring 14 is adapted to the dynamic force of the deck during its motorized descent. The position of the nut 12 on the threaded portion 13 of the output shaft 8 is a function of the height of the deck of the handling door 1.

Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tout autre équivalent.It must also be understood that the foregoing description has been given by way of example only and that it in no way limits the scope of the invention which could not be overcome by replacing the execution details described. by any other equivalent.

Claims (6)

Dispositif de protection antichute pour porte de manutention (1) à tablier souple, ladite porte de manutention comportant des montants verticaux (2, 3) et dans sa partie supérieure un arbre d'entraînement (4) permettant le déplacement dudit tablier souple entre une position d'ouverture et une position de fermeture, caractérisé en ce qu'il comprend des moyens de compression qui sont directement montés sur l'axe de sortie (8) de l'arbre d'entraînement (4) afin de bloquer le tablier souple lors d'une chute accidentelle de ce dernier, lesdits moyens de compression étant constitués d'un support (9) fixé sur le montant (2) correspondant, d'un écrou (12) bloqué en rotation à l'intérieur du support (9), d'un filet trapézoïdal (13) ménagé sur l'axe de sortie (8) de l'arbre d'entraînement (4) permettant l'entraînement en translation de l'écrou (12) et d'un ressort de compression (14) disposé autour de l'axe de sortie (8) qui est en appui contre le support (9).Fall protection device for a handling door (1) with a flexible apron, said handling door comprising vertical uprights (2, 3) and in its upper part a drive shaft (4) allowing said flexible apron to move between a position opening and a closed position, characterized in that it comprises compression means which are directly mounted on the output shaft (8) of the drive shaft (4) in order to block the flexible apron during an accidental fall of the latter, said compression means being constituted by a support (9) fixed on the corresponding upright (2), a nut (12) locked in rotation inside the support (9) , of a trapezoidal thread (13) formed on the output shaft (8) of the drive shaft (4) for translational driving of the nut (12) and a compression spring ( 14) arranged around the output shaft (8) which bears against the support (9). Dispositif de protection antichute suivant la revendication 1, caractérisé en ce que l'écrou (12) est bloqué en rotation autour de l'axe (8) de l'arbre d'entraînement (4) par des tiges de guidage (11) solidaire du support (9).Fall protection device according to Claim 1, characterized in that the nut (12) is locked in rotation about the axis (8) of the drive shaft (4) by integral guide rods (11). of the support (9). Dispositif de protection antichute suivant la revendication 1, caractérisé en ce que le support (9) délimite un espace de protection (10) qui comporte d'une part en son milieu l'axe de sortie (8) et d'autre part autour et à égale distance de l'axe de sortie (8) des tiges de guidage et de maintien (11).Fall protection device according to Claim 1, characterized in that the support (9) delimits a protective space (10) which comprises on the one hand at its center the output axis (8) and on the other hand around and equidistant from the output shaft (8) of the guide and holding rods (11). Dispositif de protection antichute suivant la revendication 1, caractérisé en ce qu'il comprend des moyens de réglage permettant d'empêcher l'actionnement des moyens de compression avant une hauteur déterminée du tablier de la porte de manutention (1).Fall protection device according to claim 1, characterized in that it comprises adjustment means for preventing the actuation of the compression means before a given height of the apron of the handling door (1). Dispositif de protection antichute suivant la revendication 4, caractérisé en ce que les moyens de réglage sont constitués par un espace libre de distance d prévu entre une face de l'écrou (12) et la face en vis à vis du ressort (14).Fall protection device according to Claim 4, characterized in that the adjustment means consist of a free space of distance d provided between one face of the nut (12) and the face facing the spring (14). Dispositif de protection antichute suivant la revendication 5, caractérisé en ce que la distance de l'espace libre d prévue entre la face (15) de l'écrou (12) et la face en vis à vis du ressort (14) est réglable lors de réalisation de la porte de manutention (1).Fall protection device according to Claim 5, characterized in that the distance of the free space d provided between the face (15) of the nut (12) and the face facing the spring (14) is adjustable when realization of the handling door (1).
EP06356074A 2005-06-23 2006-06-22 Anti-dropping device for an industrial door Withdrawn EP1739274A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0506359A FR2887579B1 (en) 2005-06-23 2005-06-23 ANTI-FALL PROTECTION DEVICE FOR A HANDLING DOOR

Publications (1)

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EP1739274A1 true EP1739274A1 (en) 2007-01-03

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Application Number Title Priority Date Filing Date
EP06356074A Withdrawn EP1739274A1 (en) 2005-06-23 2006-06-22 Anti-dropping device for an industrial door

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EP (1) EP1739274A1 (en)
FR (1) FR2887579B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011015725A2 (en) 2009-07-30 2011-02-10 Maviflex Anti-fall transmission device for a handling door having a flexible curtain
CN108678647A (en) * 2018-04-27 2018-10-19 佛山市高芯科技服务有限公司 A kind of intelligent curtain driving mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE592043C (en) * 1934-02-07 William Young Weight compensation device for sliding windows or the like.
US2932057A (en) * 1959-05-22 1960-04-12 Overhead Door Corp Counterbalance means for upwardly acting doors and the like
FR2736086A1 (en) * 1995-06-28 1997-01-03 Bubendorff Sa Motorised roller shutter
US6244325B1 (en) * 1998-08-05 2001-06-12 Qmi Roll Shutter Supply Safety release clutch for rolling shutters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE592043C (en) * 1934-02-07 William Young Weight compensation device for sliding windows or the like.
US2932057A (en) * 1959-05-22 1960-04-12 Overhead Door Corp Counterbalance means for upwardly acting doors and the like
FR2736086A1 (en) * 1995-06-28 1997-01-03 Bubendorff Sa Motorised roller shutter
US6244325B1 (en) * 1998-08-05 2001-06-12 Qmi Roll Shutter Supply Safety release clutch for rolling shutters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011015725A2 (en) 2009-07-30 2011-02-10 Maviflex Anti-fall transmission device for a handling door having a flexible curtain
US9217284B2 (en) 2009-07-30 2015-12-22 Sofineco Anti-drop transmission device for a service door with a flexible curtain
CN108678647A (en) * 2018-04-27 2018-10-19 佛山市高芯科技服务有限公司 A kind of intelligent curtain driving mechanism
CN108678647B (en) * 2018-04-27 2020-09-11 张国阳 Intelligent curtain driving mechanism

Also Published As

Publication number Publication date
FR2887579B1 (en) 2009-01-09
FR2887579A1 (en) 2006-12-29

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