EP0258919A1 - Device for making access possible in a building to an exit closed by a trap door - Google Patents
Device for making access possible in a building to an exit closed by a trap door Download PDFInfo
- Publication number
- EP0258919A1 EP0258919A1 EP87201493A EP87201493A EP0258919A1 EP 0258919 A1 EP0258919 A1 EP 0258919A1 EP 87201493 A EP87201493 A EP 87201493A EP 87201493 A EP87201493 A EP 87201493A EP 0258919 A1 EP0258919 A1 EP 0258919A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hatch
- locking mechanism
- closure
- unlocking
- under
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B53/00—Operation or control of locks by mechanical transmissions, e.g. from a distance
- E05B53/003—Operation or control of locks by mechanical transmissions, e.g. from a distance flexible
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
- E05F1/025—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights with rectilinearly-moving counterweights
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F17/00—Special devices for shifting a plurality of wings operated simultaneously
- E05F17/002—Special devices for shifting a plurality of wings operated simultaneously for wings which lie one behind the other when closed
-
- 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
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
-
- 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
- E05Y2900/13—Type of wing
- E05Y2900/146—Shutters
Definitions
- the present invention relates to a device which makes it possible to have access in a building to an outlet closed by a hatch, by opening a closure which blocks access to said outlet.
- the object of the invention is to design a device which makes it possible, without having to use mechanical, electrical, pneumatic or hydraulic means, to reach an outlet closed by a hatch.
- a particular application, in no way limiting, of the invention relates to a device which gives access to an emergency exit for example.
- exit or emergency exit By exit or emergency exit, one understands any exit maintained, under normal circumstances, closed and inaccessible to the public, which can be reached or opened only after a particular operation.
- Such exits or emergency exits may occur or be desirable in buildings, premises, stations, metro stations for example.
- the object of the invention is then also to offer a device which is designed to be able to act inter alia in very delicate circumstances, when a panic is likely to occur or has occurred.
- the invention aims to operate such a device infallibly and in all circumstances (electrical fault, failure or destruction of hydraulic or pneumatic circuits) somehow automatically.
- said means for unlocking said locking mechanism during the opening of said closure are formed by the pivot axis of said closure, around which is wound one end of a cable, the other end of which is connected to an element of said locking mechanism, so that the rotation of said closure causes said locking mechanism to be unlocked.
- said hatch is pivotally mounted about a horizontal axis and said cables, one end of which is fixed to a counterweight, are each fixed by their other end to an arm which forms part of said hatch .
- the device illustrated in the figures is intended to provide a room at a lower level with an exit, for example although not necessarily an emergency exit, so that, using a staircase for example, people who are at this lower level can reach a higher level.
- This arrangement is in no way limiting for the invention.
- a device of the aforementioned type is therefore remarkably suitable for equipping metro stations, tunnels, etc., although it must be clear that devices which would be built according to the same principle, can be used in many other applications, according to local requirements.
- the lower level has been designated by the reference 1, while the reference 2 indicates the upper level which must be attainable, for example by using the staircase 3 represented in this figure.
- the lower level is for example that of a metro station whose users must be able to be evacuated quickly.
- the invention is based on the combination of various elements which cooperate with each other without the use of electric motors or mechanical, pneumatic or hydraulic means.
- the locking mechanism maintains in the closed position under normal circumstances, a hatch 13 pivoting vertically about a horizontal axis 12.
- the hatch 13 is provided at the lower part, that is to say in the vicinity of the pivot axis 12, with two lever arms 15.
- the hatch 13 with its lever arms 15 is shown in the open position in dotted lines, and in the closed position in solid lines. In reality there are two lever arms: one along each longitudinal side of the hatch 13 or, in other words, one along each side of the staircase 3.
- each lever arm 15 At the bottom of each lever arm 15 is fixed, by means of bars 16 welded to these lever arms 15, a cable 17 which is passed around a first pulley 18 (below) and a second pulley 19 (above). At the cable part hanging vertically downwards after this last pulley 19, hangs a counterweight.
- This counterweight is shown in solid lines in FIG. 1 in the position where it is when the hatch 13 is closed, and in dotted lines in the position where the hatch 13 is open.
- This counterweight carries the reference 20. When the hatch 13 is open, the counterweight 20 descends. It is clear that one can use a counterweight 20 which would be hooked to the cable ends 17 ⁇ , while of course each cable end 17 ⁇ can also be provided with its counterweight.
- the hatch 13 is braked by interposing hydraulic means constituted, for example, by brake stabilizers 21 with an attack point at 22 on the wall of the room 4 and at 23 on the lever arm 15. This stabilizer braking is also shown in two positions.
- the unlocking mechanism is formed in an embodiment adopted preferably by an arm 25 rotatably mounted with a pivot 24, on the underside of the hatch 13. To this arm is connected a tension spring 26, so that the arm 25 is always spread in the direction of the arrow 27. The travel along the arrow 27 of the arm 25 is limited by the cam 28 which can be controlled from outside the hatch, as explained in more detail below .
- the cam 28 is held in its normal position by a tension spring 29.
- FIGS. 2 and 3 It can be deduced from these figures that in the closed position of the flap 13, the arm 25, under the influence of the spring 26, jumped into the recess 30 of the element 31 mounted fixedly relative to the building. The hatch is then locked.
- the hatch 13 is unlocked when a traction is exerted on the cable 8, a cable which, on the one hand, is fixed to a small lever 33 pivotally mounted around an axis 32 and, on the other hand, as described above, on the drum 7.
- the small lever 33 is moved away from the recess 30, under normal conditions, by a tension spring 34.
- the hatch 13 If the hatch 13 is open, it can then be brought back to the closed position using a winch 36, which is mounted on the hatch 13 and with which a cable 37 with hook 38 can be pulled. It suffices to fix the hook 38 at one or other fixed point provided for this purpose on the wall of the building, to bring the hatch into the closed position, by winding the cable 38 around the winch 36.
- the device described here must be considered as a possible embodiment.
- the hatch can have the most varied structures depending on local circumstances. Its axis of rotation can be vertical as well as horizontal.
- the space between the closure and the hatch does not necessarily have to be occupied by a staircase.
- the closure can be any obstacle whose displacement in any plane exerts a pulling force on a cable, so that one can act on the locking mechanism in order to open the hatch.
- the locking mechanism can also differ from the type described.
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
Description
La présente invention est relative à un dispositif qui rend possible d'avoir accès dans un bâtiment à une sortie fermée par une trappe, en ouvrant une fermeture qui bloque l'accès à ladite sortie.The present invention relates to a device which makes it possible to have access in a building to an outlet closed by a hatch, by opening a closure which blocks access to said outlet.
L'invention a pour but de concevoir un dispositif qui rend possible, sans devoir faire appel à des moyens mécaniques, électriques, pneumatiques ou hydrauliques, de parvenir à une sortie fermée par une trappe.The object of the invention is to design a device which makes it possible, without having to use mechanical, electrical, pneumatic or hydraulic means, to reach an outlet closed by a hatch.
Une application particulière, en aucun cas limitative, de l'invention concerne un dispositif qui donne accès à une sortie de secours par exemple.A particular application, in no way limiting, of the invention relates to a device which gives access to an emergency exit for example.
Par sortie ou sortie de secours, on entend toute sortie maintenue , dans des circonstances normales, fermée et inaccessible au public, qui ne peut être atteinte ou ouverte qu'après une opération particulière.By exit or emergency exit, one understands any exit maintained, under normal circumstances, closed and inaccessible to the public, which can be reached or opened only after a particular operation.
De telles sorties ou sorties de secours peuvent se présenter ou être désirables dans des bâtiments, locaux, stations, stations de métro par exemple.Such exits or emergency exits may occur or be desirable in buildings, premises, stations, metro stations for example.
Le but de l'invention est alors aussi d'offrir un dispositif qui est conçu pour pouvoir agir entre autres dans des circonstances très délicates, quand une panique risque de se produire ou s'est produite.The object of the invention is then also to offer a device which is designed to be able to act inter alia in very delicate circumstances, when a panic is likely to occur or has occurred.
En particulier, l'invention a pour but de faire fonctionner un tel dispositif de manière infaillible et dans toutes les circonstances (défaut du courant électrique, panne ou destruction de circuits hydrauliques ou pneumatiques) en quelque sorte automatiquement.In particular, the invention aims to operate such a device infallibly and in all circumstances (electrical fault, failure or destruction of hydraulic or pneumatic circuits) somehow automatically.
Pour rendre ceci possible suivant l'invention, le dispositif est essentiellement constitué par:
- a) un mécanisme de verrouillage qui maintient ladite trappe fermée en position normale;
- b) des moyens pour déplacer, lors du déverrouillage dudit mécanisme de verrouillage, ladite trappe sous l'effet de la pesanteur, et
- c) des moyens pour déverrouiller le mécanisme de verrouillage lors de l'ouverture de ladite fermeture.
- a) a locking mechanism which keeps said hatch closed in the normal position;
- b) means for moving, when unlocking said locking mechanism, said hatch under the effect of gravity, and
- c) means for unlocking the locking mechanism when said closure is opened.
Suivant une forme de réalisation appliquée de préférence de l'invention, lesdits moyens pour déverrouiller ledit mécanisme de verrouillage lors de l'ouverture de ladite fermeture, sont formés par l'axe-pivot de ladite fermeture, autour duquel est enroulée une extrémité d'un câble, dont l'autre extrémité est reliée à un élément dudit mécanisme de verrouillage, de telle sorte que la rotation de ladite fermeture provoque le déverrouillage dudit mécanisme de verrouillage.According to a preferably applied embodiment of the invention, said means for unlocking said locking mechanism during the opening of said closure, are formed by the pivot axis of said closure, around which is wound one end of a cable, the other end of which is connected to an element of said locking mechanism, so that the rotation of said closure causes said locking mechanism to be unlocked.
Dans une forme de réalisation particulière, ladite trappe est montée à pivotement autour d'un axe horizontal et lesdits câbles, dont une extrémité est fixée à un contre-poids, sont chacun fixés par leur autre extrémité à un bras qui fait partie de ladite trappe.In a particular embodiment, said hatch is pivotally mounted about a horizontal axis and said cables, one end of which is fixed to a counterweight, are each fixed by their other end to an arm which forms part of said hatch .
D'autres détails et particularités de l'invention ressortiront de la description ci-après, donnée à titre d'exemple non limitatif et en se référant aux dessins annexés, dans lesquels:
- La figure 1 est une représentation schématique générale du dispositif suivant l'invention.
- La figure 2 est une vue de dessous partielle, à plus grande échelle, de la trappe du dispositif suivant l'invention, avec les éléments s'y présentant qui coopèrent avec le dispositif de verrouillage proprement dit.
- La figure 3 est une vue en élévation latérale schématique du mécanisme de verrouillage, suivant la figure 2.
- Figure 1 is a general schematic representation of the device according to the invention.
- Figure 2 is a partial bottom view, on a larger scale, of the hatch of the device according to the invention, with the elements therein which cooperate with the locking device itself.
- Figure 3 is a side elevation view schematic of the locking mechanism, according to Figure 2.
Le dispositif illustré aux figures est destiné à doter un local à un niveau inférieur d'une sortie, par exemple bien que pas nécessairement une sortie de secours, de telle sorte qu'à l'aide d'un escalier par exemple, les personnes qui se trouvent à ce niveau inférieur puissent atteindre un niveau supérieur. Cet agencement n'est en aucune façon limitatif pour l'invention.The device illustrated in the figures is intended to provide a room at a lower level with an exit, for example although not necessarily an emergency exit, so that, using a staircase for example, people who are at this lower level can reach a higher level. This arrangement is in no way limiting for the invention.
Un dispositif du type précité convient donc remarquablement pour équiper des stations de métro, des tunnels, etc., bien qu'il doit être clair que des dispositifs qui seraient construits suivant le même principe, puissent être mis en oeuvre dans de nombreuses autres applications, en fonction des exigences locales.A device of the aforementioned type is therefore remarkably suitable for equipping metro stations, tunnels, etc., although it must be clear that devices which would be built according to the same principle, can be used in many other applications, according to local requirements.
En se référant à la figure 1, on a désigné par la référence 1 le niveau inférieur, tandis que la référence 2 indique le niveau supérieur qui doit pouvoir être atteint, par exemple en utilisant l'escalier 3 représenté dans cette figure. Le niveau inférieur est par exemple celui d'une station de métro dont les usagers doivent pouvoir être évacués rapidement.Referring to FIG. 1, the lower level has been designated by the reference 1, while the
L'invention est basée sur la combinaison de divers éléments qui coopèrent mutuellement sans faire appel à des moteurs életriques, ni à des moyens mécaniques, pneumatiques ou hydrauliques.The invention is based on the combination of various elements which cooperate with each other without the use of electric motors or mechanical, pneumatic or hydraulic means.
Au niveau 1 de la station, dans des circonstances normales, l'accès au local 4, qui se trouve en liaison directe avec l'escalier 3, est bloqué par un obstacle ou une fermeture. Cette fermeture est constituée dans ce cas spécifique par une porte 5 avec un axe-pivot vertical 6. A la partie supérieure, un petit tambour 7 fait partie de cet axe-pivot 6. Sur ce tambour 7 est fixé un câble 8 qui passe sur une poulie 9 et dont l'autre extrémité est fixée à un élément 10 du mécanisme de verrouillage désigné par la référence générale 11.At level 1 of the station, under normal circumstances, access to
Le fonctionnement de ce mécanisme de verrouillage sera décrit plus en détail ci-après.The operation of this locking mechanism will be described in more detail below.
Le mécanisme de verrouillage maintient en position de fermeture dans les circonstances normales, une trappe 13 pivotant verticalement autour d'un axe horizontal 12.The locking mechanism maintains in the closed position under normal circumstances, a
La sortie que ferme la trappe 13, doit donc être considérée comme complètement fermée par la trappe 13. Pour une bonne compréhension du dispositif, on doit imaginer l'espace au-dessus de l'escalier 3, qui se raccorde au local 4, comme limité vers le haut par ladite trappe et par la structure en béton qui est indiquée par la référence 14.The exit which the
Dans l'exemple de réalisation suivant la figure 1, la trappe 13 est munie à la partie inférieure, c'est-à-dire au voisinage de l'axe de pivotement 12, de deux bras de levier 15.In the embodiment according to FIG. 1, the
La trappe 13 avec ses bras de levier 15 est représentée en position ouverte en pointillés, et en position fermée en traits pleins. En réalité il existe deux bras de levier: un le long de chaque côté longitudinal de la trappe 13 ou, en d'autres mots, un le long de chaque côté de l'escalier 3.The
A la partie inférieure de chaque bras de levier 15 est fixé, par l'intermédiaire de barres 16 soudées à ces bras de levier 15, un câble 17 qui est passé autour d'une première poulie 18 (en dessous) et une seconde poulie 19 (au-dessus). A la partie de câble pendant verticalement vers le bas après cette dernière poulie 19, est suspendu un contrepoids. Ce contrepoids est représenté en traits pleins à la figure 1 dans la position où il se trouve quand la trappe 13 est fermée, et en pointillés dans la position où la trappe 13 est ouverte. Ce contrepoids porte la référence 20. Lorsque la trappe 13 est ouverte, le contrepoids 20 descend. Il est clair que l'on peut utiliser un contrepoids 20 qui serait accroché aux extrémités de câble 17ʹ, tandis que naturellement chaque extrémité de câble 17ʹ peut aussi être munie de son contrepoids.At the bottom of each
Le freinage de la trappe 13 a lieu en interposant des moyens hydrauliques constitués, par exemple, par des stabilisateurs de freinage 21 avec un point d'attaque en 22 sur la paroi du local 4 et en 23 sur le bras de levier 15. Ce stabilisateur de freinage est également représenté en deux positions.The
Le mécanisme de déverrrouillage est formé dans une forme de réalisation adoptée de préférence, par un bras 25 monté à rotation avec un pivot 24, sur la face inférieure de la trappe 13. A ce bras est relié un ressort de traction 26, de telle sorte que le bras 25 est toujours écarté dans la direction de la flèche 27. La course suivant la flèche 27 du bras 25 est limitée par la came 28 qui peut être commandée de l'extérieur de la trappe, comme expliqué plus en détail ci-après. La came 28 est maintenue à se position normale par un ressort de traction 29.The unlocking mechanism is formed in an embodiment adopted preferably by an
Pour rendre le mode de fonctionnement du mécanisme de verrouillage 11 clair, on se référera surtout aux figures 2 et 3. On peut déduire de ces figures qu'en position de fermeture de la trappe 13, le bras 25, sous l'influence du ressort de traction 26, a sauté dans l'évidement 30 de l'élément 31 monté de façon fixe par rapport au bâtiment. La trappe est alors verrouillée.To make the operating mode of the
Le déverrouillage de la trappe 13 a lieu quand une traction est exercée sur le câble 8, câble qui, d'une part, est fixé à un petit levier 33 monté à pivotement autour d'un axe 32 et, d'autre part, comme décrit ci-avant, sur le tambour 7. Le petit levier 33 est écarté de l'évidement 30, dans les conditions normales, par un ressort de traction 34.The
Lorsqu'une force de traction est exercée sur le câble 8, le petit levier 33 repousse par son extrémité supérieure, le bras 25 hors de l'évidement 30 de l'élément 31. A ce moment les contrepoids 20 entrent en action et la trappe 13 s'ouvre donc exclusivement sous l'influence de la pesanteur.When a tensile force is exerted on the
Si l'on veut déverrouiller la trappe 13 de l'extérieur, on peut alors agir sur la came 28. Lors de la rotation suivant la flèche 35 de ladite came, le bras 25 sort également de l'évidement 30. Cette came est donc prévue pour ouvrir la trappe dans certaines circonstances, sans devoir agir sur la fermeture 5.If we want to unlock the
Si la trappe 13 est ouverte, elle peut alors être ramenée à la position fermée en utilisant un treuil 36, qui est monté sur la trappe 13 et avec lequel un câble 37 avec crochet 38 peut être tiré. Il suffit de fixer le crochet 38 en l'un ou l'autre point fixe prévu dans ce but de la paroi du bâtiment, pour amener la trappe en position de fermeture, en enroulant le câble 38 autour du treuil 36.If the
L'invention n'est pas limitée à la forme de réalisation ci-avant et de nombreuses modifications peuvent y être apportées sans sortir du cadre de l'invention.The invention is not limited to the above embodiment and numerous modifications can be made thereto without departing from the scope of the invention.
Ainsi il faut faire remarquer que le dispositif décrit ici doit être considéré comme une forme de réalisation possible. Il est également évident que la trappe peut présenter les structures les plus variées en fonction de circonstances locales. Son axe de rotation peut être vertical aussi bien qu'horizontal. L'espace entre la fermeture et la trappe ne doit pas nécessairement être occupé par un escalier. La fermeture peut être n'importe quel obstacle dont le déplacement dans un plan quelconque exerce une force de traction sur un câble, de telle sorte qu'on puisse agir sur le mécanisme de verrouillage afin d'ouvrir la trappe. Le mécanisme de verrouillage peut aussi différer du type décrit.Thus it should be noted that the device described here must be considered as a possible embodiment. It is also obvious that the hatch can have the most varied structures depending on local circumstances. Its axis of rotation can be vertical as well as horizontal. The space between the closure and the hatch does not necessarily have to be occupied by a staircase. The closure can be any obstacle whose displacement in any plane exerts a pulling force on a cable, so that one can act on the locking mechanism in order to open the hatch. The locking mechanism can also differ from the type described.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE0/217068A BE905307A (en) | 1986-08-21 | 1986-08-21 | Opening mechanism for emergency exit door - has lock release actuated by cable as door leading to exit door is opened |
BE217068 | 1986-08-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0258919A1 true EP0258919A1 (en) | 1988-03-09 |
EP0258919B1 EP0258919B1 (en) | 1991-05-15 |
Family
ID=3844069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19870201493 Expired - Lifetime EP0258919B1 (en) | 1986-08-21 | 1987-08-06 | Device for making access possible in a building to an exit closed by a trap door |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0258919B1 (en) |
DE (1) | DE3770082D1 (en) |
ES (1) | ES2022304B3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2645580A1 (en) * | 1989-04-10 | 1990-10-12 | Somenor Sa | Mechanical device for commanding the opening of a door and door provided with this device |
WO1996009455A1 (en) * | 1994-09-19 | 1996-03-28 | American Sterilizer Company | Drive system for a sliding chamber door |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE51878C (en) * | H. HELD, in Firma Loechgauer Sohlennägelfabrik held & braun in Loechgau, Württemb | Device for the simultaneous opening of the doors of a building | ||
FR340821A (en) * | 1904-02-29 | 1904-07-21 | Friedrich Carl Franz Munte | System allowing simultaneous opening of any number of doors |
US1725846A (en) * | 1927-06-29 | 1929-08-27 | Paul V Wycoff | Latch mechanism for doors |
CH238968A (en) * | 1944-04-12 | 1945-09-15 | Chambettaz Marius | Mechanical device for remotely opening and closing a door whose latch is normally held in the position it occupies when the door is closed. |
US4024671A (en) * | 1975-02-01 | 1977-05-24 | Daiwa Jidosha Kogyo Kabushiki Kaisha | Mutually counterbalancing upper and lower flap doors of wide doorway |
-
1987
- 1987-08-06 EP EP19870201493 patent/EP0258919B1/en not_active Expired - Lifetime
- 1987-08-06 ES ES87201493T patent/ES2022304B3/en not_active Expired - Lifetime
- 1987-08-06 DE DE8787201493T patent/DE3770082D1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE51878C (en) * | H. HELD, in Firma Loechgauer Sohlennägelfabrik held & braun in Loechgau, Württemb | Device for the simultaneous opening of the doors of a building | ||
FR340821A (en) * | 1904-02-29 | 1904-07-21 | Friedrich Carl Franz Munte | System allowing simultaneous opening of any number of doors |
US1725846A (en) * | 1927-06-29 | 1929-08-27 | Paul V Wycoff | Latch mechanism for doors |
CH238968A (en) * | 1944-04-12 | 1945-09-15 | Chambettaz Marius | Mechanical device for remotely opening and closing a door whose latch is normally held in the position it occupies when the door is closed. |
US4024671A (en) * | 1975-02-01 | 1977-05-24 | Daiwa Jidosha Kogyo Kabushiki Kaisha | Mutually counterbalancing upper and lower flap doors of wide doorway |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2645580A1 (en) * | 1989-04-10 | 1990-10-12 | Somenor Sa | Mechanical device for commanding the opening of a door and door provided with this device |
WO1996009455A1 (en) * | 1994-09-19 | 1996-03-28 | American Sterilizer Company | Drive system for a sliding chamber door |
US5566508A (en) * | 1994-09-19 | 1996-10-22 | American Sterilizer Company | Drive system for a sliding chamber door |
Also Published As
Publication number | Publication date |
---|---|
DE3770082D1 (en) | 1991-06-20 |
ES2022304B3 (en) | 1991-12-01 |
EP0258919B1 (en) | 1991-05-15 |
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