EP0765990A1 - Obstacle detecting device for industrial doors with a flexible door leaf - Google Patents

Obstacle detecting device for industrial doors with a flexible door leaf Download PDF

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Publication number
EP0765990A1
EP0765990A1 EP96420305A EP96420305A EP0765990A1 EP 0765990 A1 EP0765990 A1 EP 0765990A1 EP 96420305 A EP96420305 A EP 96420305A EP 96420305 A EP96420305 A EP 96420305A EP 0765990 A1 EP0765990 A1 EP 0765990A1
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EP
European Patent Office
Prior art keywords
strap
detection device
horizontal shaft
fixed
shaft
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Granted
Application number
EP96420305A
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German (de)
French (fr)
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EP0765990B1 (en
Inventor
Bernard Simon
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Maviflex SAS
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Mavil SA
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    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling

Definitions

  • the present invention relates to a device for detecting an obstacle preventing the proper functioning of a flexible apron handling door.
  • Detection devices are known which are designed to actuate the lifting of the door when the latter encounters an obstacle during its descent.
  • the devices are housed under the threshold bar which is made of metal.
  • the devices consist of a pressure sensor system applied continuously over the entire width of the threshold bar.
  • Other detection devices consist of an elongated flexible envelope having a fixing sole secured to the widest free edge of the flexible curtain.
  • the elongated envelope has a channel over its entire length which contains at its opposite ends a transmitter and a receiver for a radius which parallels the free edge of the flexible curtain.
  • the obstacle cannot be detected by detection devices such as the pressure sensor located on the threshold bar.
  • Patent CH-A-548,523 discloses an obstacle detection device in which two switches are disposed respectively above and below the winding shaft of a roller shutter. Each switch is associated with an operating finger and a spring, hence the complexity of the device. In addition, this device is not suitable for react to the formation of a loop only opposite the operating fingers of a switch, that is to say above or below the winding shaft. Indeed, the fingers are sensitive over a small angular range relative to the winding axis of the shutter. If a loop or a soft strand forms in a region distant from the fingers, the device does not react until the loop has developed in such a way that it reaches one of the fingers, this can occur well after the formation of the loop. . The safety function sought with this device is therefore not fully achieved.
  • the invention relates to a device for detecting an obstacle preventing the smooth operation of the flexible apron of a handling door, comprising detection means arranged near the horizontal shaft around which the flexible apron, said detection means being connected to a position switch controlling the rotation of the horizontal shaft, characterized in that the detection means consist of at least one strap arranged perpendicular to the horizontal shaft and to its vicinity, said strap being connected on the one hand to the position switch and on the other hand to a fixed blade or to a face of a cover secured to the lateral uprights.
  • the device can react effectively to an obstacle in the path of the shutter by detecting the formation of a loop over a wide angular range relative to the axis of the winding shaft of the door.
  • the use of a strap guarantees that the formation of a loop does not deform by the articulated lever of the switch, because the strap absorbs the volume variations of the deck.
  • the fixed blade and the positioning switch are fixed perpendicular to each other inside a cover.
  • the strap extends over an angle greater than 90 °, which makes the device effective over a wide angular range.
  • the strap has a substantially curved profile. Thanks to this aspect of the invention, the strap is shaped to receive a loop formed by the apron of the shutter when it is relaxed.
  • the position switch comprises a lever which switches under the effect of the tension of the strap.
  • the lever which controls the switch is not in contact with a soft strand formed by the apron and does not risk being deformed by a force due to such a soft strand.
  • a handling door 1 comprising a flexible curtain or apron 1 a which can be wound around a horizontal shaft 1 b which is rotated by means of a not shown gearmotor.
  • the handling door 1 is made up of lateral uprights 1 c comprising a vertical slide 1 d in which the flexible apron 1 a slides.
  • the latter comprises at its lower end a threshold bar 1 e known per se.
  • the handling door 1 has in its upper part a cover 1 f integral with the uprights 1 c and which can be provided over the entire width of tree 1 b .
  • each upright 1 c is provided a fixed blade 1 g directed in the direction of the horizontal shaft 1 b .
  • the fixed blade 1 g is arranged below the shaft 1 b and close to it.
  • the cover 1 f has on one of its internal faces and more particularly on those which are perpendicular to the fixed blade 1 g a position switch 1 h which is electrically connected to the gear motor driving in rotation the horizontal shaft 1 b .
  • the position switch 1 h comprises an articulated lever 1 i which is secured to a flexible strap 1 i , the opposite end of which is fixed to the extreme end of the blade 1 g , that is to say below of the horizontal tree.
  • the strap 1 j affects a slightly curved profile passing below and near the horizontal shaft 1 b .
  • another strap 1 j can be mounted at the other end of the shaft 1 b of the handling door 1.
  • a variant of a detection device which consists in that the positioning switch 1 h receiving one of the ends of the flexible strap 1 i is fixed on the underside 1 k of the cover 1 f.
  • the other end of the flexible strap 1 i is directly secured to the upper face of the hood 1 f 1 so that said strap is perpendicular and adjacent to the horizontal shaft 1b of the handling door 1.
  • the position switch 1 h controls the geared motor so that it immediately drives the shaft 1 b in the opposite direction to reassemble the flexible apron 1 a .
  • the slack side 1 During the ascent of the flexible apron 1a, it is found that the slack side 1 'disappears and allows the strap 1 j to return to its initial position. The return to the initial position of the strap 1 j releases the lever 1 i which is loaded elastically to return to its original position.
  • the gear motor again changes direction of rotation so that the deck 1 a can descend without encountering an obstacle.

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

Abstract

The detector is situated adjacent to the horizontal shaft (1b) about which the flexible door (1a) is rolled and comprises at least one strap (1j) set perpendicular to the shaft and connected at one end to an interruptor switch (1h), while its other end is fixed to a strip (1g) or part of a housing joined to the door's side supports (1c). The fixed strip and interruptor switch are located perpendicular to one another inside the housing (1f) with the strip passing under the shaft (1b). The strap is curved in shape and connected to the interruptor switch by a lever (1i) which is tripped when a pressure is applied to the strap, e.g. when part of the door is not wound properly on the shaft.

Description

La présente invention a trait à un dispositif pour la détection d'un obstacle empêchant le bon fonctionnement d'une porte de manutention à tablier souple.The present invention relates to a device for detecting an obstacle preventing the proper functioning of a flexible apron handling door.

On connaît des dispositifs de détection qui sont conçus pour actionner le relevage de la porte quand celle-ci rencontre un obstacle lors de sa descente. Les dispositifs sont logés sous la barre de seuil qui est réalisée en métal. Les dispositifs sont constitués d'un système de palpeur de pression appliqué en continu sur toute la largeur de la barre de seuil.Detection devices are known which are designed to actuate the lifting of the door when the latter encounters an obstacle during its descent. The devices are housed under the threshold bar which is made of metal. The devices consist of a pressure sensor system applied continuously over the entire width of the threshold bar.

On connaît d'autres dispositifs de détection qui sont constitués d'une enveloppe allongée souple ayant une semelle de fixation solidaire du bord libre le plus large du rideau souple. L'enveloppe allongée comporte un canal sur toute sa longueur qui contient à ses extrémités opposées un émetteur et un récepteur pour un rayon qui suit parallèlement le bord libre du rideau souple. Dès que l'enveloppe subit une légère déformation, le rayon est interrompu, déclenchant l'arrêt du mouvement de la porte.Other detection devices are known which consist of an elongated flexible envelope having a fixing sole secured to the widest free edge of the flexible curtain. The elongated envelope has a channel over its entire length which contains at its opposite ends a transmitter and a receiver for a radius which parallels the free edge of the flexible curtain. As soon as the envelope undergoes a slight deformation, the beam is interrupted, triggering the stop of the door movement.

Ces dispositifs de détection ont pour inconvénient d'avoir un coût de fabrication élevé ; de plus, ils ne permettent pas de détecter un obstacle appliqué contre le rideau ou le tablier souple lors de sa descente, par exemple une masse venant faire pression sur le rideau ou un chariot déportant latéralement la barre de seuil.These detection devices have the disadvantage of having a high manufacturing cost; moreover, they do not make it possible to detect an obstacle applied against the curtain or the flexible apron during its descent, for example a mass coming to press the curtain or a carriage laterally moving the threshold bar.

Dans ces situations, l'obstacle ne peut pas être détecté par les dispositifs de détection tels que le palpeur de pression situé sur la barre de seuil.In these situations, the obstacle cannot be detected by detection devices such as the pressure sensor located on the threshold bar.

Enfin, ces dispositifs de détection placés dans les barres de seuil sont d'un poids important et relativement rigides, donc inadéquats dans l'utilisation des portes de manutention.Finally, these detection devices placed in the threshold bars are of significant weight and relatively rigid, therefore inadequate in the use of handling doors.

On connaît par le brevet CH-A-548 523 un dispositif de détection d'un obstacle dans lequel deux interrupteurs sont disposés respectivement au-dessus et au-dessous de l'arbre d'enroulement d'un volet roulant. Chaque interrupteur est associé à un doigt de manoeuvre et à un ressort, d'où une complexité du dispositif. En outre, ce dispositif n'est apte à réagir à la formation d'une boucle qu'en regard des doigts de manoeuvre d'un interrupteur, c'est-à-dire au-dessus ou au-dessous de l'arbre d'enroulement. En effet, les doigts sont sensibles sur une faible plage angulaire par rapport à l'axe d'enroulement du volet. Si une boucle ou un brin mou se forme dans une zone éloignée des doigts, le dispositif ne réagit que lorsque la boucle s'est développée de telle façon qu'elle atteint un des doigts, ceci pouvant se produire bien après la formation de la boucle. La fonction de sécurité recherchée avec ce dispositif n'est donc pas pleinement atteinte.Patent CH-A-548,523 discloses an obstacle detection device in which two switches are disposed respectively above and below the winding shaft of a roller shutter. Each switch is associated with an operating finger and a spring, hence the complexity of the device. In addition, this device is not suitable for react to the formation of a loop only opposite the operating fingers of a switch, that is to say above or below the winding shaft. Indeed, the fingers are sensitive over a small angular range relative to the winding axis of the shutter. If a loop or a soft strand forms in a region distant from the fingers, the device does not react until the loop has developed in such a way that it reaches one of the fingers, this can occur well after the formation of the loop. . The safety function sought with this device is therefore not fully achieved.

C'est à ces inconvénients qu'entend plus particulièrement remédier la présente invention.It is these drawbacks that the present invention intends to remedy more particularly.

Dans cet esprit, l'invention concerne un dispositif pour la détection d'un obstacle empêchant le bon fonctionnement du tablier souple d'une porte de manutention, comprenant des moyens de détection disposés à proximité de l'arbre horizontal autour duquel s'enroule le tablier souple, lesdits moyens de détection étant reliés à un interrupteur de position commandant la rotation de l'arbre horizontal, caractérisé en ce que les moyens de détection consistent en au moins une sangle disposée perpendiculairement à l'arbre horizontal et à son voisinage, ladite sangle étant reliée d'une part à l'interrupteur de position et d'autre part à une lame fixe ou à une face d'un capot solidaire de montants latéraux.In this spirit, the invention relates to a device for detecting an obstacle preventing the smooth operation of the flexible apron of a handling door, comprising detection means arranged near the horizontal shaft around which the flexible apron, said detection means being connected to a position switch controlling the rotation of the horizontal shaft, characterized in that the detection means consist of at least one strap arranged perpendicular to the horizontal shaft and to its vicinity, said strap being connected on the one hand to the position switch and on the other hand to a fixed blade or to a face of a cover secured to the lateral uprights.

Grâce à l'invention, le dispositif peut réagir efficacement à un obstacle sur le trajet du volet roulant par la détection de la formation d'une boucle sur une large plage angulaire par rapport à l'axe de l'arbre d'enroulement de la porte. L'utilisation d'une sangle garantit que la formation d'une boucle ne déforme par le levier articulé de l'interrupteur, car la sangle absorbe les variations de volume du tablier.Thanks to the invention, the device can react effectively to an obstacle in the path of the shutter by detecting the formation of a loop over a wide angular range relative to the axis of the winding shaft of the door. The use of a strap guarantees that the formation of a loop does not deform by the articulated lever of the switch, because the strap absorbs the volume variations of the deck.

Selon un aspect avantageux de l'invention, la lame fixe et l'interrupteur de positionnement sont fixés perpendiculairement l'un à l'autre à l'intérieur d'un capot. Ainsi, la sangle s'étend sur un angle supérieur à 90°, ce qui rend le dispositif efficace sur une large plage angulaire.According to an advantageous aspect of the invention, the fixed blade and the positioning switch are fixed perpendicular to each other inside a cover. Thus, the strap extends over an angle greater than 90 °, which makes the device effective over a wide angular range.

Selon un autre aspect avantageux de l'invention, la sangle présente un profil sensiblement courbe. Grâce à cet aspect de l'invention, la sangle est conformée pour recevoir une boucle formée par le tablier du volet lorsqu'il est détendu.According to another advantageous aspect of the invention, the strap has a substantially curved profile. Thanks to this aspect of the invention, the strap is shaped to receive a loop formed by the apron of the shutter when it is relaxed.

Selon un autre aspect avantageux de l'invention, l'interrupteur de position comporte un levier qui bascule sous l'effet de la tension de la sangle. Ainsi, le levier qui commande l'interrupteur n'est pas au contact d'un brin mou formé par le tablier et ne risqu pas d'être déformé par un effort dû à un tel brin mou.According to another advantageous aspect of the invention, the position switch comprises a lever which switches under the effect of the tension of the strap. Thus, the lever which controls the switch is not in contact with a soft strand formed by the apron and does not risk being deformed by a force due to such a soft strand.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Fig. 1 est une vue partielle illustrant une porte de manutention munie d'un dispositif de détection suivant la présente invention.
  • Fig. 2 est une vue de côté montrant le dispositif de détection en position de repos.
  • Fig. 3 est une vue semblable à celle de fig. 2, mais représentant le dispositif de détection en position actionnée.
  • Fig. 4 est une vue semblable à celle de fig. 2, mais montrant une variante de mise en place du dispositif de détection suivant l'invention.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Fig. 1 is a partial view illustrating a handling door provided with a detection device according to the present invention.
  • Fig. 2 is a side view showing the detection device in the rest position.
  • Fig. 3 is a view similar to that of FIG. 2, but showing the detection device in the actuated position.
  • Fig. 4 is a view similar to that of FIG. 2, but showing a variant implementation of the detection device according to the invention.

On a représenté en fig. 1 à 4 une porte de manutention 1 comportant un rideau ou tablier souple 1a enroulable autour d'un arbre horizontal 1b qui est entraîné en rotation par l'intermédiaire d'un moto-réducteur non représenté.There is shown in fig. 1 to 4 a handling door 1 comprising a flexible curtain or apron 1 a which can be wound around a horizontal shaft 1 b which is rotated by means of a not shown gearmotor.

La porte de manutention 1 est constituée de montants latéraux 1c comprenant une glissière verticale 1d dans laquelle coulisse le tablier souple 1a. Ce dernier comporte à son extrémité inférieure une barre de seuil 1e connue en soi.The handling door 1 is made up of lateral uprights 1 c comprising a vertical slide 1 d in which the flexible apron 1 a slides. The latter comprises at its lower end a threshold bar 1 e known per se.

La porte de manutention 1 comporte dans sa partie supérieure un capot 1f solidaire des montants 1c et qui peut être prévu sur toute la largeur de l'arbre 1b.The handling door 1 has in its upper part a cover 1 f integral with the uprights 1 c and which can be provided over the entire width of tree 1 b .

Dans la partie interne du capot 1f et au-dessus de chaque montant 1c est prévue une lame fixe 1g dirigée en direction de l'arbre horizontal 1b. La lame fixe 1g est disposée en dessous de l'arbre 1b et à proximité de celui-ci. Le capot 1f comporte sur l'une de ses faces internes et plus particulièrement sur celles se trouvant perpendiculaires à la lame fixe 1g un interrupteur de position 1h qui est relié électriquement au moto-réducteur entraînant en rotation l'arbre horizontal 1b . L'interrupteur de position 1h comporte un levier articulé 1i qui est solidaire d'une sangle souple 1i dont l'extrémité opposée est fixée sur le bout extrême de la lame 1g, c'est-à-dire au-dessous de l'arbre horizontal.In the internal part of the cover 1 f and above each upright 1 c is provided a fixed blade 1 g directed in the direction of the horizontal shaft 1 b . The fixed blade 1 g is arranged below the shaft 1 b and close to it. The cover 1 f has on one of its internal faces and more particularly on those which are perpendicular to the fixed blade 1 g a position switch 1 h which is electrically connected to the gear motor driving in rotation the horizontal shaft 1 b . The position switch 1 h comprises an articulated lever 1 i which is secured to a flexible strap 1 i , the opposite end of which is fixed to the extreme end of the blade 1 g , that is to say below of the horizontal tree.

On observe que la sangle 1j affecte un profil légèrement courbe passant en dessous et à proximité de l'arbre horizontal 1b. Bien évidemment, une autre sangle 1j peut être montée à l'autre extrémité de l'arbre 1b de la porte de manutention 1.It is observed that the strap 1 j affects a slightly curved profile passing below and near the horizontal shaft 1 b . Obviously, another strap 1 j can be mounted at the other end of the shaft 1 b of the handling door 1.

En fig. 4, on a représenté une variante d'un dispositif de détection suivant la présente invention qui consiste en ce que l'interrupteur de positionnement 1h recevant l'une des extrémités de la sangle souple 1i est fixé sur la face inférieure 1k du capot 1f. In fig. 4, there is shown a variant of a detection device according to the present invention which consists in that the positioning switch 1 h receiving one of the ends of the flexible strap 1 i is fixed on the underside 1 k of the cover 1 f.

L'autre extrémité de la sangle souple 1i est directement assujettie à la face supérieure 1l du capot 1f de manière que ladite sangle soit perpendiculaire et à proximité de l'arbre horizontal 1b de la porte de manutention 1.The other end of the flexible strap 1 i is directly secured to the upper face of the hood 1 f 1 so that said strap is perpendicular and adjacent to the horizontal shaft 1b of the handling door 1.

On comprend aisément d'après la description précédente le fonctionnement du dispositif de détection.The operation of the detection device can easily be understood from the preceding description.

En effet, lorsque le tablier souple 1a rencontre un obstacle soit sous la barre de seuil 1e, soit latéralement comme représenté par les flèches F1 et F2 en fig. 3, on remarque que le déroulement de l'arbre 1b forme un brin mou 1'a qui vient en appui contre la sangle 1j du dispositif de sécurité. Le déplacement de la sangle de sécurité 1j provoque le basculement du levier 1i actionnant l'interrupteur de positionnement 1h. La sangle 1j est apte à recevoir le brin mou 1'a, tel que représenté la fig. 3, sur un large secteur angulaire et donc actionner l'interrupteur 1h par l'intermédiaire du levier 1i In fact, when the flexible deck 1 a encounters an obstacle either under the threshold bar 1 e , or laterally as represented by the arrows F1 and F2 in FIG. 3, it can be seen that the unwinding of the shaft 1b forms a soft strand 1 ' a which bears against the strap 1j of the safety device. The movement of the safety strap 1 j causes the lever 1 i to tilt, actuating the positioning switch 1 h . The strap 1 j is able to receive the soft strand 1 ′ a , as shown in FIG. 3, over a wide angular sector and therefore activate the switch 1 h via lever 1 i

L'interrupteur de position 1h commande le moto-réducteur pour que celui-ci entraîne immédiatement en sens inverse l'arbre 1b pour remonter le tablier souple 1a. Lors de la remontée du tablier souple 1a, on constate que le brin mou 1'a disparaît et permet à la sangle 1j de revenir dans sa position initiale. Le retour à la position initiale de la sangle 1j libère le levier 1i qui est chargé élastiquement pour revenir dans sa position première. Le moto-réducteur change à nouveau de sens de rotation pour que le tablier 1a puisse redescendre sans rencontrer d'obstacle.The position switch 1 h controls the geared motor so that it immediately drives the shaft 1 b in the opposite direction to reassemble the flexible apron 1 a . During the ascent of the flexible apron 1a, it is found that the slack side 1 'disappears and allows the strap 1 j to return to its initial position. The return to the initial position of the strap 1 j releases the lever 1 i which is loaded elastically to return to its original position. The gear motor again changes direction of rotation so that the deck 1 a can descend without encountering an obstacle.

Claims (7)

Dispositif pour la détection d'un obstacle empêchant le bon fonctionnement du tablier souple d'une porte de manutention, comprenant des moyens de détection disposés à proximité de l'arbre horizontal (1b) autour duquel s'enroule le tablier souple (1a), lesdits moyens de détection étant reliés à un interrupteur de position (1h) commandant la rotation de l'arbre horizontal (1b), caractérisé en ce que les moyens de détection consistent en au moins une sangle (1j) disposée perpendiculairement à l'arbre horizontal (1b) et à son voisinage, ladite sangle (1j) étant reliée d'une part à l'interrupteur de position (1h) et d'autre part une lame fixe (1g) ou à une face (1l) d'un capot (1f) solidaire de montants latéraux (1c).Device for detecting an obstacle preventing the correct operation of the flexible curtain of a handling door, comprising detection means located near the horizontal shaft (1b) about which the flexible screen is wound (1a ), said detection means being connected to a position switch (1 h ) controlling the rotation of the horizontal shaft (1 b ), characterized in that the detection means consist of at least one strap (1 j ) arranged perpendicularly to the horizontal shaft (1 b ) and to its vicinity, said strap (1 j ) being connected on the one hand to the position switch (1 h ) and on the other hand a fixed blade (1 g ) or to one face (1 l ) of a cover (1 f ) integral with lateral uprights (1 c ). Dispositif de détection suivant la revendication 1, caractérisé en ce que la lame fixe (1g) et l'interrupteur de positionnement (1h) sont fixés perpendiculairement l'un à l'autre à l'intérieur d'un capot (1f).Detection device according to claim 1, characterized in that the fixed blade (1 g ) and the positioning switch (1 h ) are fixed perpendicular to each other inside a cover (1 f ). Dispositif de détection suivant la revendication 1, caractérisé en ce que la lame fixe (1g) est dirigée perpendiculairement et en dessous de l'arbre horizontal (1b).Detection device according to claim 1, characterized in that the fixed blade (1 g ) is directed perpendicularly and below the horizontal shaft (1 b ). Dispositif de détection suivant la revendication 1, caractérisé en ce que la sangle (1j) présente un profil sensiblement courbe.Detection device according to claim 1, characterized in that the strap (1 j ) has a substantially curved profile. Dispositif de détection suivant la revendication 1, caractérisé en ce que l'interrupteur de position (1h) comporte un levier (1i) qui bascule sous l'effet de la tension de la sangle (1j).Detection device according to claim 1, characterized in that the position switch (1 h ) comprises a lever (1 i ) which swings under the effect of the tension of the strap (1 j ). Dispositif de détection suivant la revendication 1, caractérisé en ce qu'une sangle (1j) est prévue à chaque extrémité de l'arbre horizontal (1b) de la porte de manutention.Detection device according to claim 1, characterized in that a strap (1 j ) is provided at each end of the horizontal shaft (1 b ) of the handling door. Dispositif de détection suivant la revendication 1, caractérisé en ce que ledit interrupteur de position (1h) est fixé sur la face inférieure (1k) dudit capot (1f), ladite sangle étant fixée à une face supérieure (1l) dudit capot.Detection device according to claim 1, characterized in that said position switch (1 h ) is fixed on the lower face (1 k ) of said cover (1 f ), said strap being fixed on an upper face (1 l ) of said hood.
EP96420305A 1995-09-26 1996-09-26 Obstacle detecting device for industrial doors with a flexible door leaf Expired - Lifetime EP0765990B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9511537A FR2739131B1 (en) 1995-09-26 1995-09-26 DEVICE FOR DETECTING AN OBSTACLE FOR HANDLING DOORS WITH FLEXIBLE APRON
FR9511537 1995-09-26

Publications (2)

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EP0765990A1 true EP0765990A1 (en) 1997-04-02
EP0765990B1 EP0765990B1 (en) 2001-11-28

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EP96420305A Expired - Lifetime EP0765990B1 (en) 1995-09-26 1996-09-26 Obstacle detecting device for industrial doors with a flexible door leaf

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US (1) US5706875A (en)
EP (1) EP0765990B1 (en)
DE (1) DE69617352T2 (en)
ES (1) ES2170217T3 (en)
FR (1) FR2739131B1 (en)

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* Cited by examiner, † Cited by third party
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WO2006100394A2 (en) 2005-03-25 2006-09-28 Maviflex Device for detecting an obstacle and limiting the force of an apron in a goods-handling door
EP1862635A1 (en) * 2006-06-02 2007-12-05 Maviflex Security system for a handling door with flexible curtain.

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Also Published As

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DE69617352T2 (en) 2002-08-08
ES2170217T3 (en) 2002-08-01
FR2739131A1 (en) 1997-03-28
EP0765990B1 (en) 2001-11-28
FR2739131B1 (en) 1998-09-11
US5706875A (en) 1998-01-13
DE69617352D1 (en) 2002-01-10

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