EP0803626B1 - Device for lifting a vertically movable door - Google Patents

Device for lifting a vertically movable door Download PDF

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Publication number
EP0803626B1
EP0803626B1 EP97400782A EP97400782A EP0803626B1 EP 0803626 B1 EP0803626 B1 EP 0803626B1 EP 97400782 A EP97400782 A EP 97400782A EP 97400782 A EP97400782 A EP 97400782A EP 0803626 B1 EP0803626 B1 EP 0803626B1
Authority
EP
European Patent Office
Prior art keywords
intermediate piece
fixed support
shaft
door
winder
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.)
Expired - Lifetime
Application number
EP97400782A
Other languages
German (de)
French (fr)
Other versions
EP0803626A1 (en
Inventor
Mats Johan Eriksson
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.)
Assa Abloy Entrance Systems France SAS
Original Assignee
Cardo Door France SA
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 Cardo Door France SA filed Critical Cardo Door France SA
Publication of EP0803626A1 publication Critical patent/EP0803626A1/en
Application granted granted Critical
Publication of EP0803626B1 publication Critical patent/EP0803626B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1269—Spring safety devices
    • 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
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1261—Counterbalance devices with springs with canted-coil torsion springs specially adapted for overhead wings
    • 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 invention relates to a door lifting device with vertical movement and relates more particularly a security system for such an installation.
  • a door of the type concerned by the invention comprises a panel guided between two rails parallel extending respectively along the sides of the doorway and fixed to the Wall.
  • the panel has guide wheels secured to move in the grooves of these rails.
  • the panel is operated by two flexible links (typically straps, but possibly cables, chains or the like) extending respectively opposite the rails, on either side of the panel.
  • Each maneuver link is thus attached between a point anchoring secured to the panel, (generally located at the bottom thereof) and a reel, or similar operating means, most often installed high above the door.
  • the Maneuvering links are normally always stretched at least by the weight of the panel itself.
  • This panel can be balanced, at least in part, by co-axially arranged springs to the reel shaft.
  • the invention achieves this objective by triggering a security mechanism, as soon as that the holding torque disappears.
  • the invention relates to a door lifting device with vertical movement, of the type comprising a reel driven by an electric motor and adapted to actuate operating links attached to said door, characterized in that said motor is coupled to an intermediate piece mounted with a predetermined rotary clearance on a fixed support of said reel and in that a pivoting pawl is mounted in the vicinity of said reel in order to be able pivot in a predetermined position, suitable for making it cooperate with a stop of said reel, when said intermediate piece rotates consecutively to a door retainer failure.
  • the pawl is mounted on the fixed support and is coupled by a lug or the like to the intermediate piece.
  • the latter is located in the axial extension of the reel shaft and the axis of rotation thereof is coincident with that of said tree.
  • the intermediate piece or said fixed support has oblong holes substantially equidistant from the axis of said reel, while the fixed support or said part intermediate, respectively, comprises guide elements, for example constituted by bolts or the like, engaged in said oblong holes.
  • the intermediate piece has the oblong holes, while the fixed support has the guide elements.
  • the pivoting pawl is mounted on a pin fixed to the support. fixed and its lug is engaged in a hole in the intermediate piece, so that the rotation of this intermediate piece causes the pivoting of the lug in the direction of the stop provided on the reel shaft.
  • the drawings show a lifting device for a door with vertical movement of the type in which said door (not visible in the drawings) moves between vertical rails under the action of operating links, here straps 11.
  • the lifting device is not shown only in part, namely more particularly one of its ends showing the reel and its drive shaft.
  • Each strap is wound on itself in a grooved pulley 12 reel 14 secured to a horizontal shaft 16 installed above the door and driven by an electric motor 17.
  • Each strap is thus normally stretched between the door and the reel 14.
  • the shaft is provided with a bearing cylindrical 18 mounted for free rotation in a bearing 19, itself secured to a fixed support 20.
  • the shaft 16 is advantageously a hollow shaft housing the electric motor 17 and a mechanical reducer 22, of a relatively irreversible type.
  • the body of the motor 17 is integral with the reduction gear 22 (these two elements are mounted in the extension of each other) and the motor axis is provided with a section rod square 24 which projects axially beyond the end of the hollow shaft.
  • the engine body is not linked to the wall of the shaft 16.
  • the reduction gear is coupled to this shaft, internally. More specifically, the shaft 16 is shaped so as to have large longitudinally extending grooves. These grooves therefore define internal stops. 26 by which mechanical coupling is carried out with the reducer and external stops 28 (here four in number) whose role will be explained later.
  • the motor 17 is coupled (by its rod to square section 24 by means of a pin 30) to an intermediate piece 34 mounted with a clearance predetermined rotary on the fixed support 20 of the reel 14.
  • a pivoting pawl 36 is mounted in the vicinity of said reel. It is arranged to be able to pivot in a position predetermined suitable for making it cooperate with one of the stops 28 of said reel, when said intermediate piece 34 moves in rotation following a failure of the door retaining means, for example a disappearance of the engine torque or a rupture in balancing systems.
  • the pawl 36 is mounted on the fixed support 20, thanks to a pin 42 formed from a bolt fixed to the fixed support 20.
  • the pivoting pawl 36 includes a lug 44 engaged in a hole 45 of said intermediate piece.
  • the latter has a general trapezoidal appearance; she is consisting of a sheet comprising several folds parallel to 90 ° relative to the other. It is located in the axial extension of the hollow shaft 16, so that the axis of rotation of said intermediate piece is coincident with that of the hollow shaft and, by Consequently also, that of the rod with square section. This is achieved by the fact that the coin intermediate has oblong holes 38, while the fixed support has elements guide 40, here constituted by simple bolts engaged in the oblong holes 38 correspondents.
  • the guide elements 40 and the holes 38 are equidistant from the axis of the reel.
  • the electric motor is also integral with the intermediate piece, the connection being produced at the center of rotation thereof by the assembly described above, including the rod square section and the pin 30 locked between two parallel parts of the part intermediate 34.
  • the pin 42 itself crosses an oblong hole 43 of the intermediate piece, so as not to hinder the movement of it.
  • a spring 48 is mounted between said fixed support 20 and the intermediate piece 34. As can be seen in FIG. 1, this spring normally maintains the intermediate piece in a stable position in which the guide elements 40 are in stop at certain ends of the corresponding oblong holes 38. For this illustrated position in FIG. 1, the pawl 36 is moved away from the hollow shaft 16, its position being determined by the cooperation between the lug 44 and the hole 45 of the intermediate piece 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Elevator Door Apparatuses (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Coating With Molten Metal (AREA)
  • Gates (AREA)
  • Lock And Its Accessories (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Slot Machines And Peripheral Devices (AREA)

Abstract

The door is raised vertically by a drum (14), driven by an electric motor, which activates operating links fastened to the door. The motor is coupled to an intermediate plate (34), which has a predetermined rotational play, on the drum fixed support (20). A pawl (36), mounted near the drum and coupled to the intermediate plate, pivots into a predetermined position to engage a stop (28) when the intermediate piece is rotated consecutively consequent to a failure of the door retainer. The fixed support forms a bearing for the shaft (16) to which the drum is fixed. The intermediate plate, which is located in an axial extension of the shaft, has rectangular holes (38) in which guide bolts (40) are engaged. A spring (48) between the fixed support and intermediate piece assists the latter into a stable position when the pawl is distanced from the stop.

Description

L'invention se rapporte à un dispositif de levage de porte à mouvement vertical et concerne plus particulièrement un système de sécurité pour une telle installation.The invention relates to a door lifting device with vertical movement and relates more particularly a security system for such an installation.

Les portes à mouvement vertical sont particulièrement appréciées dans les locaux industriels, les entrepôts, etc... Une telle porte peut, en effet, être facilement motorisée et télécommandée. Une porte du genre concerné par l'invention comporte un panneau guidé entre deux rails parallèles s'étendant respectivement le long des côtés de l'embrasure de la porte et fixés au mur. Le panneau comporte des roues de guidage assujetties à se déplacer dans les rainures de ces rails. Le panneau est manoeuvré par deux liens souples (typiquement des sangles, mais éventuellement des câbles, chaínes ou analogues) s'étendant respectivement en regard des rails, de part et d'autre du panneau. Chaque lien de manoeuvre est ainsi rattaché entre un point d'ancrage solidaire du panneau, (généralement situé au bas de celui-ci) et un enrouleur, ou moyen de manoeuvre analogue, le plus souvent installé en hauteur, au-dessus de la porte. Les liens de manoeuvre sont normalement toujours tendus au moins par le poids du panneau lui-même. Ce panneau peut être équilibré, au moins en partie, par des ressorts agencés co-axialement à l'arbre de l'enrouleur.Doors with vertical movement are particularly appreciated in industrial premises, warehouses, etc. Such a door can, in fact, be easily motorized and remote-controlled. A door of the type concerned by the invention comprises a panel guided between two rails parallel extending respectively along the sides of the doorway and fixed to the Wall. The panel has guide wheels secured to move in the grooves of these rails. The panel is operated by two flexible links (typically straps, but possibly cables, chains or the like) extending respectively opposite the rails, on either side of the panel. Each maneuver link is thus attached between a point anchoring secured to the panel, (generally located at the bottom thereof) and a reel, or similar operating means, most often installed high above the door. The Maneuvering links are normally always stretched at least by the weight of the panel itself. This panel can be balanced, at least in part, by co-axially arranged springs to the reel shaft.

La sécurité de fonctionnement d'une telle porte doit être irréprochable. On doit en particulier veiller à ce qu'elle ne puisse retomber brutalement à la manière d'une guillotine, notamment en cas de défaillance de l'un des éléments assurant la retenue de la porte, comme par exemple une rupture du ressort ou une disparition du couple-moteur, pour quelque raison que ce soit. The operational safety of such a door must be beyond reproach. We must in particular ensure that it cannot fall back suddenly like a guillotine, in particular by failure of one of the elements ensuring the retention of the door, such as for example a spring break or disappearance of the engine torque, for whatever reason.

L'invention permet d'atteindre cet objectif par déclenchement d'un mécanisme de sécurité, dès que le couple de retenue disparaít.The invention achieves this objective by triggering a security mechanism, as soon as that the holding torque disappears.

Plus précisément, l'invention concerne un dispositif de levage de porte à mouvement vertical, du type comprenant un enrouleur entraíné par un moteur électrique et adapté à actionner des liens de manoeuvre rattachés à ladite porte, caractérisé en ce que ledit moteur est accouplé à une pièce intermédiaire montée avec un jeu rotatif prédéterminé sur un support fixe dudit enrouleur et en ce qu'un cliquet pivotant est monté au voisinage dudit enrouleur pour pouvoir pivoter dans une position prédéterminée, propre à le faire coopérer avec une butée dudit enrouleur, lorsque ladite pièce intermédiaire se déplace en rotation consécutivement à une défaillance de la retenue de la porte.More specifically, the invention relates to a door lifting device with vertical movement, of the type comprising a reel driven by an electric motor and adapted to actuate operating links attached to said door, characterized in that said motor is coupled to an intermediate piece mounted with a predetermined rotary clearance on a fixed support of said reel and in that a pivoting pawl is mounted in the vicinity of said reel in order to be able pivot in a predetermined position, suitable for making it cooperate with a stop of said reel, when said intermediate piece rotates consecutively to a door retainer failure.

Selon un mode de réalisation d'exemple préféré, le cliquet est monté sur le support fixe et est couplé par un ergot ou analogue à la pièce intermédiaire. Cette dernière est située dans le prolongement axial de l'arbre de l'enrouleur et l'axe de rotation de celle-ci est confondu avec celui dudit arbre. La pièce intermédiaire ou ledit support fixe comporte des trous oblongs sensiblement équidistants de l'axe dudit enrouleur, tandis que le support fixe ou ladite pièce intermédiaire, respectivement, comporte des éléments de guidage, par exemple constitués par des boulons ou analogues, engagés dans lesdits trous oblongs. Selon un mode de réalisation préféré, la pièce intermédiaire comporte les trous oblongs, tandis que le support fixe comporte les éléments de guidage. En outre, le cliquet pivotant est monté sur un tourillon fixé au support fixe et son ergot est engagé dans un trou de la pièce intermédiaire, de sorte que la rotation de cette pièce intermédiaire entraíne le pivotement de l'ergot dans la direction de la butée prévue sur l'arbre de l'enrouleur. According to a preferred embodiment, the pawl is mounted on the fixed support and is coupled by a lug or the like to the intermediate piece. The latter is located in the axial extension of the reel shaft and the axis of rotation thereof is coincident with that of said tree. The intermediate piece or said fixed support has oblong holes substantially equidistant from the axis of said reel, while the fixed support or said part intermediate, respectively, comprises guide elements, for example constituted by bolts or the like, engaged in said oblong holes. According to one embodiment preferred, the intermediate piece has the oblong holes, while the fixed support has the guide elements. In addition, the pivoting pawl is mounted on a pin fixed to the support. fixed and its lug is engaged in a hole in the intermediate piece, so that the rotation of this intermediate piece causes the pivoting of the lug in the direction of the stop provided on the reel shaft.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront plus clairement à la lumière de la description qui va suivre d'un dispositif de levage de porte à mouvement vertical conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins non limitatifs annexés dans lesquels :

  • la figure 1 est une vue d'une extrémité du dispositif de levage conforme à l'invention ;
  • la figure 2 est une vue de dessus de la figure 1; et
  • la figure 3 est une vue schématique illustrant le couplage entre le moteur et l'arbre de l'enrouleur.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of a door lifting device with vertical movement in accordance with its principle, given solely by way of example and made with reference to the nonlimiting drawings annexed in which:
  • Figure 1 is a view of one end of the lifting device according to the invention;
  • Figure 2 is a top view of Figure 1; and
  • Figure 3 is a schematic view illustrating the coupling between the motor and the reel shaft.

Sur les dessins, on a représenté un dispositif de levage pour une porte à mouvement vertical du type dans lequel ladite porte (non visible sur les dessins) se déplace entre des rails verticaux sous l'action de liens de manoeuvre, ici des sangles 11. Le dispositif de levage n'est représenté qu'en partie, à savoir plus particulièrement l'une de ses extrémités montrant l'enrouleur et son arbre d'entraínement. Chaque sangle vient s'enrouler sur elle-même dans une poulie à gorge 12 de l'enrouleur 14 solidaire d'un arbre horizontal 16 installé au-dessus de la porte et entraíné par un moteur électrique 17. Chaque sangle est ainsi normalement tendue entre la porte et l'enrouleur 14. Au voisinage de chacune de ses extrémités, l'arbre est pourvu d'une portée cylindrique 18 montée à rotation libre dans un palier 19, lui-même solidaire d'un support fixe 20. L'arbre 16 est avantageusement un arbre creux abritant le moteur électrique 17 et un réducteur mécanique 22, d'un type relativement irréversible. Comme illustré schématiquement à la figure 3, le corps du moteur 17 est solidaire du réducteur 22 (ces deux éléments sont montés dans le prolongement l'un de l'autre) et l'axe du moteur est muni d'une tige à section carrée 24 qui fait saillie axialement au-delà de l'extrémité de l'arbre creux. Le corps du moteur n'est pas lié à la paroi de l'arbre 16. En revanche, le réducteur est attelé à cet arbre, intérieurement. Plus précisément, l'arbre 16 est conformé de façon à présenter de larges cannelures s'étendant longitudinalement. Ces cannelures définissent donc des butées intérieures 26 par lesquelles s'effectue le couplage mécanique avec le réducteur et des butées extérieures 28 (ici au nombre de quatre) dont le rôle sera expliqué plus loin.The drawings show a lifting device for a door with vertical movement of the type in which said door (not visible in the drawings) moves between vertical rails under the action of operating links, here straps 11. The lifting device is not shown only in part, namely more particularly one of its ends showing the reel and its drive shaft. Each strap is wound on itself in a grooved pulley 12 reel 14 secured to a horizontal shaft 16 installed above the door and driven by an electric motor 17. Each strap is thus normally stretched between the door and the reel 14. In the vicinity of each of its ends, the shaft is provided with a bearing cylindrical 18 mounted for free rotation in a bearing 19, itself secured to a fixed support 20. The shaft 16 is advantageously a hollow shaft housing the electric motor 17 and a mechanical reducer 22, of a relatively irreversible type. As illustrated schematically in FIG. 3, the body of the motor 17 is integral with the reduction gear 22 (these two elements are mounted in the extension of each other) and the motor axis is provided with a section rod square 24 which projects axially beyond the end of the hollow shaft. The engine body is not linked to the wall of the shaft 16. On the other hand, the reduction gear is coupled to this shaft, internally. More specifically, the shaft 16 is shaped so as to have large longitudinally extending grooves. These grooves therefore define internal stops. 26 by which mechanical coupling is carried out with the reducer and external stops 28 (here four in number) whose role will be explained later.

Selon une caractéristique importante de l'invention, le moteur 17 est accouplé (par sa tige à section carrée 24 au moyen d'une goupille 30) à une pièce intermédiaire 34 montée avec un jeu rotatif prédéterminé sur le support fixe 20 de l'enrouleur 14. Un cliquet pivotant 36 est monté au voisinage dudit enrouleur. Il est agencé pour pouvoir pivoter dans une position prédéterminée propre à le faire coopérer avec l'une des butées 28 dudit enrouleur, lorsque ladite pièce intermédiaire 34 se déplace en rotation consécutivement à une défaillance des moyens de retenue de la porte, par exemple une disparition du couple-moteur ou une rupture dans les systèmes d'équilibrage. Dans l'exemple représenté, le cliquet 36 est monté sur le support fixe 20, grâce à un tourillon 42 constitué à partir d'un boulon fixé au support fixe 20. Il est couplé à la pièce intermédiaire 34 pour pivoter, lorsque celle-ci est entraínée en rotation en cas d'avarie. Plus précisément, le cliquet pivotant 36 comporte un ergot 44 engagé dans un trou 45 de ladite pièce intermédiaire. Cette dernière a une allure générale trapézoïdale; elle est constituée par une tôle comportant plusieurs plis parallèles à 90° les uns par rapport aux autres. Elle est située dans le prolongement axial de l'arbre creux 16, de sorte que l'axe de rotation de ladite pièce intermédiaire se trouve confondu avec celui de l'arbre creux et, par conséquent aussi, celui de la tige à section carrée. Ceci est obtenu par le fait que la pièce intermédiaire comporte des trous oblongs 38, tandis que le support fixe comporte des éléments de guidage 40, ici constitués par de simples boulons engagés dans les trous oblongs 38 correspondants. Les éléments de guidage 40 et les trous 38 sont équidistants de l'axe de l'enrouleur. Le moteur électrique est par ailleurs solidaire de la pièce intermédiaire, la liaison étant réalisée au centre de rotation de celle-ci par le montage décrit ci-dessus, incluant la tige à section carrée et la goupille 30 verrouillée entre deux parties parallèles de la pièce intermédiaire 34.According to an important characteristic of the invention, the motor 17 is coupled (by its rod to square section 24 by means of a pin 30) to an intermediate piece 34 mounted with a clearance predetermined rotary on the fixed support 20 of the reel 14. A pivoting pawl 36 is mounted in the vicinity of said reel. It is arranged to be able to pivot in a position predetermined suitable for making it cooperate with one of the stops 28 of said reel, when said intermediate piece 34 moves in rotation following a failure of the door retaining means, for example a disappearance of the engine torque or a rupture in balancing systems. In the example shown, the pawl 36 is mounted on the fixed support 20, thanks to a pin 42 formed from a bolt fixed to the fixed support 20. It is coupled to the intermediate part 34 to pivot, when the latter is rotated in case of damage. More specifically, the pivoting pawl 36 includes a lug 44 engaged in a hole 45 of said intermediate piece. The latter has a general trapezoidal appearance; she is consisting of a sheet comprising several folds parallel to 90 ° relative to the other. It is located in the axial extension of the hollow shaft 16, so that the axis of rotation of said intermediate piece is coincident with that of the hollow shaft and, by Consequently also, that of the rod with square section. This is achieved by the fact that the coin intermediate has oblong holes 38, while the fixed support has elements guide 40, here constituted by simple bolts engaged in the oblong holes 38 correspondents. The guide elements 40 and the holes 38 are equidistant from the axis of the reel. The electric motor is also integral with the intermediate piece, the connection being produced at the center of rotation thereof by the assembly described above, including the rod square section and the pin 30 locked between two parallel parts of the part intermediate 34.

Le tourillon 42 traverse lui-même un trou oblong 43 de la pièce intermédiaire, pour ne pas entraver le mouvement de celle-ci. Un ressort 48 est monté entre ledit support fixe 20 et la pièce intermédiaire 34. Comme cela est visible à la figure 1, ce ressort maintient normalement la pièce intermédiaire dans une position stable dans laquelle les éléments de guidage 40 sont en butée à certaines extrémités des trous oblongs 38 correspondants. Pour cette position illustrée à la figure 1, le cliquet 36 est écarté de l'arbre creux 16, sa position étant déterminée par la coopération entre l'ergot 44 et le trou 45 de la pièce intermédiaire 34. En revanche, si un incident de fonctionnement, du genre mentionné ci-dessus, se produit, un couple inverse est immédiatement engendré par le poids de la porte, ce qui provoque la rotation limitée de la pièce intermédiaire, dans le sens inverse des aiguilles d'une montre en considérant la figure 1, jusqu'à ce que les éléments de guidage 40 viennent à nouveau en butée aux autres extrémités des trous oblongs 38. Dans ce mouvement de rotation, la pièce intermédiaire 34 entraíne le pivotement de l'ergot 36 qui vient instantanément au contact de l'une des butées 28 et bloquer l'arbre creux 16. La chute de la porte est ainsi immédiatement arrêtée.The pin 42 itself crosses an oblong hole 43 of the intermediate piece, so as not to hinder the movement of it. A spring 48 is mounted between said fixed support 20 and the intermediate piece 34. As can be seen in FIG. 1, this spring normally maintains the intermediate piece in a stable position in which the guide elements 40 are in stop at certain ends of the corresponding oblong holes 38. For this illustrated position in FIG. 1, the pawl 36 is moved away from the hollow shaft 16, its position being determined by the cooperation between the lug 44 and the hole 45 of the intermediate piece 34. On the other hand, if a operating incident, of the kind mentioned above, occurs, reverse torque is immediately generated by the weight of the door, which causes limited rotation of the intermediate piece, anticlockwise when considering figure 1, until the guide elements 40 again come into abutment at the other ends oblong holes 38. In this rotational movement, the intermediate piece 34 drives the pivoting of the pin 36 which instantaneously comes into contact with one of the stops 28 and locks the hollow shaft 16. The fall of the door is thus immediately stopped.

Claims (10)

  1. Device for raising a vertically movable door, of the type comprising a winder (14) driven by an electric motor and adapted to actuate manoeuvring links (11) attached to said door, characterised in that said motor is coupled to an intermediate piece (34) mounted with predetermined rotary clearance on a fixed support (20) of said winder and in that a pivoting catch (36) is mounted in the vicinity of said winder in order to be able to pivot into a predetermined position, able to cause it to cooperate with a stop (28) on said winder, when said intermediate piece rotates following a failure in the retaining of the door.
  2. Device according to Claim 1, characterised in that said catch (36) is mounted on said fixed support (20) and is coupled to said intermediate piece (34).
  3. Device according to Claim 1 or 2, characterised in that said winder is fixed to a rotary shaft (16), said fixed support (20) forming for example a rotation bearing for it, in that said intermediate piece (34) is situated axially in line with said shaft and in that the rotation axis thereof is identical with that of said shaft.
  4. Device according to one of Claims 1 to 3, characterised in that said intermediate piece (34) or said fixed support (20) has oblong holes (38), whilst said fixed support or said intermediate piece, respectively, has guidance elements (40), for example consisting of bolts or the like, engaged in said oblong holes.
  5. Device according to one of the preceding claims, characterised in that said pivoting catch (36) is mounted on a journal (42) fixed to said fixed support (20) and in that it has a stud (44) engaged in a hole (45) in said intermediate piece (34).
  6. Device according to Claim 5, characterised in that a spring (48) is mounted between said fixed support and said intermediate piece in order to force the latter towards a stable position in which said catch is distant from an aforementioned stop (28) on said winder.
  7. Device according to one of Claims 3 to 6, characterised in that said shaft (16) is a hollow shaft which protects said electric motor and in that the latter is coupled to said intermediate piece at the centre of rotation thereof.
  8. Device according to Claim 7, characterised in that said motor is associated with a mechanical gearbox (22) housed in said hollow shaft.
  9. Device according to Claim 8, characterised in that said hollow shaft has longitudinal flutes by means of which it is coupled internally to said gearbox.
  10. Device according to one of the preceding claims, characterised in that said hollow shaft has longitudinal flutes which externally form aforementioned stops (28) with which said catch is able to cooperate.
EP97400782A 1996-04-25 1997-04-04 Device for lifting a vertically movable door Expired - Lifetime EP0803626B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605245 1996-04-25
FR9605245A FR2748056B1 (en) 1996-04-25 1996-04-25 DEVICE FOR LIFTING A VERTICAL MOTION DOOR

Publications (2)

Publication Number Publication Date
EP0803626A1 EP0803626A1 (en) 1997-10-29
EP0803626B1 true EP0803626B1 (en) 2000-07-05

Family

ID=9491592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400782A Expired - Lifetime EP0803626B1 (en) 1996-04-25 1997-04-04 Device for lifting a vertically movable door

Country Status (8)

Country Link
EP (1) EP0803626B1 (en)
AT (1) ATE194407T1 (en)
DE (1) DE69702420T2 (en)
DK (1) DK0803626T3 (en)
ES (1) ES2150200T3 (en)
FR (1) FR2748056B1 (en)
GR (1) GR3034545T3 (en)
PT (1) PT803626E (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213428A1 (en) 2000-12-07 2002-06-12 Flexi-Force B.V. Drop-catch mechanism
NL1032353C2 (en) * 2006-08-22 2008-02-25 Flexi Force B V Spring break protection.
DE202015105844U1 (en) * 2015-11-03 2015-12-15 Wihag Fahrzeugbausysteme Gmbh vehicle body

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764875A (en) * 1972-02-28 1973-10-09 Overhead Door Corp Door operator
DE8401947U1 (en) * 1984-01-24 1985-05-23 Hörmann KG Brockhagen, 4803 Steinhagen Spring monitoring device
DE4003218A1 (en) * 1990-02-03 1991-08-14 Rudolf Ing Grad Schneider Counterbalanced sectional door - has weight counterbalanced by torsion spring and safety catch to hold door if spring breaks
DE4230729A1 (en) * 1991-09-24 1993-03-25 Selve Ernst Gmbh Co Kg Overload protection for motorised roller blind or shutters - has torque limited coupling to cause actuator bar to move and release limit switch and disconnect motor if overload detected
DE9310792U1 (en) * 1993-07-19 1994-05-19 Hörmann KG Brockhagen, 33803 Steinhagen Spring monitoring device

Also Published As

Publication number Publication date
ES2150200T3 (en) 2000-11-16
FR2748056A1 (en) 1997-10-31
ATE194407T1 (en) 2000-07-15
DE69702420T2 (en) 2001-03-01
GR3034545T3 (en) 2001-01-31
FR2748056B1 (en) 1998-10-09
EP0803626A1 (en) 1997-10-29
DE69702420D1 (en) 2000-08-10
DK0803626T3 (en) 2000-11-06
PT803626E (en) 2000-12-29

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