EP0299899A1 - Device for locking or unlocking an emergency exit device - Google Patents

Device for locking or unlocking an emergency exit device Download PDF

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Publication number
EP0299899A1
EP0299899A1 EP88460010A EP88460010A EP0299899A1 EP 0299899 A1 EP0299899 A1 EP 0299899A1 EP 88460010 A EP88460010 A EP 88460010A EP 88460010 A EP88460010 A EP 88460010A EP 0299899 A1 EP0299899 A1 EP 0299899A1
Authority
EP
European Patent Office
Prior art keywords
slide
rod
housing
arms
electromagnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88460010A
Other languages
German (de)
French (fr)
Inventor
Alain Verslycken
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.)
Constructions Electroniques de la Ferte Sous Jouarre Sa
Original Assignee
Constructions Electroniques de la Ferte Sous Jouarre 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 Constructions Electroniques de la Ferte Sous Jouarre Sa filed Critical Constructions Electroniques de la Ferte Sous Jouarre Sa
Publication of EP0299899A1 publication Critical patent/EP0299899A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/1046—Panic bars
    • E05B65/106—Panic bars pivoting
    • E05B65/1066—Panic bars pivoting the pivot axis being substantially parallel to the longitudinal axis of the bar
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0657—Controlling mechanically-operated bolts by electro-magnetically-operated detents by locking the handle, spindle, follower or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/65—Emergency or safety
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0801—Multiple
    • Y10T292/0822—Emergency operating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0908—Emergency operating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor

Definitions

  • the present invention relates to a device for locking and unlocking an emergency exit opening means and, more particularly, such a device mounted on an exit subjected to an electronic control and monitoring system.
  • opening devices generally panic bars, which must unlock these exits under the pressure of people, for rapid evacuation of the public in the event of an accident, such as 'a fire.
  • opening devices generally panic bars, which must unlock these exits under the pressure of people, for rapid evacuation of the public in the event of an accident, such as 'a fire.
  • these opening devices cannot be used without special supervision, failing which the exits would also be open for irregularly removing goods or introducing people.
  • the emergency exit opening members are kept locked by an electrical means, such as a live electromagnet.
  • electrical means such as a live electromagnet.
  • These means can be controlled from a central station, or by heat or smoke detectors, etc.
  • the unlocked position of the opening member corresponds to the absence of current in the electrical means.
  • the locking and unlocking device used must meet a number of requirements. On the one hand, when it is in the locked position, it is essential that it does not block when it is sent an opening command. It happens, for example, that a thrust is exerted continuously on the panic bar. This thrust, even significant, must in no case oppose the unlocking of the device. Conversely, the latter must be able to resist at best if violent pushes are printed on the panic bar in order to force it. In addition, the resistance of the device, like its unlockability, must be ensured by mechanical means, and not by leveraging the power of the electromagnet, because the latter must consume the least possible energy. Indeed, many electronic surveillance systems are used as anti-intrusion systems outside opening hours, in stores, for example. In general, for safety reasons, these systems are powered by batteries outside of opening hours. They must therefore have an autonomy of at least seventy-two hours which represents the duration of an extended weekend. It is therefore necessary to provide elements in these systems which consume as little energy as possible.
  • the device must be able to generate opening request signals as soon as a push, even a slight one, is exerted on the panic bar, said signals being processed by the electronic surveillance system, to warn the station. central, trigger timers before opening, etc.
  • the object of the invention is to provide a device which meets all these requirements and which, moreover, is simple, solid and easy to assemble.
  • the panic bar is carried, at its ends, by two pivoting arms in housings fixed by their bottom on the leaf of the outlet, of each side.
  • One of said boxes contains the lock proper, while the other contains the device of the invention.
  • the device comprises: a substantially horizontal finger extending said panic bar lever on the other side of its pivot axis, towards the bottom of the housing, a slide bearing on said finger and movable vertically, the upper front edge of which is in the form of a step, the side of said step being substantially vertical and the base slightly inclined towards the front, a transverse rod which can move between a rear position where it is in abutment against the side of said step, slightly above its base, when the slider is in the low position, and a front position where it is in front of the slider, a means for returning said rod to the front position being provided, said rod being carried by the lower arms of lateral links pivoting about a transverse axis situated above said rod, in the same vertical plane or slightly in front, when it is in the rear position, said rods also comprising rear arms directed towards the rear, - a fork with two branches, the base of which is connected to the rod of an electromagnet fixed in the housing, the free ends of the two branches cooperating with
  • said means secured to the slide has two arms acting on two microswitches connected to an electronic surveillance system by two independent lines.
  • the slide is slidably mounted on a vertical axis integral with the housing.
  • the inclination of the base of said step is between 12 °, approximately, and 15 °, approximately.
  • said slide comprises a horizontal transverse hole, of oblong section directed vertically, in which is engaged a guide rod secured to the housing.
  • the branches of said fork are plates parallel to the side walls of the housing, the rear sides of which have a notch, and the slide has lugs on its side faces, which are engaged in said notches.
  • the electromagnet is in the lower part of the housing and the lateral arms of said links are in abutment on the tops of the branches of said fork.
  • a transverse stop limits downward the movement of the finger of the panic bar arm.
  • said stop and the guide rod engaged in the hole of the slide form with the bottom of the housing, on each side, vertical guides in which are engaged the branches of said fork.
  • the panic bar is carried at each end by an arm such as 1, the two arms pivoting about the same horizontal axis. At rest, said arms are directed obliquely downwards, the panic bar being held between their lower ends.
  • the pivot 2 of the arm 1 is located in a housing 3 placed on one side of the door leaf and encloses the locking device of the panic bar, object of the invention, and the pivot of the arm on the other side is in a box containing the lock proper.
  • the housing 3 has a vertical bottom or plate 4., Figs. 1 to 4, with lower and upper horizontal returns, respectively 5 and 6, side walls 7 and a front cover, not shown.
  • Figs. 1 to 4 the front side wall has been removed to show the device.
  • the front cover has been removed in Fig. 5 and the lever 1 shown in part only.
  • the pivot 2 of the lever 1 is mounted between the two side walls 7 of the housing 3. With respect to the pivot 2, the lever 1 is extended towards the bottom 4 of the housing by a finger 8. At rest, the finger 8 is substantially horizontal, Figs. 1 and 2. Its underside bears against a stop 9 in the form of a horizontal pin held between the walls 7.
  • the slide 10 On the upper face of the finger 8, a slide 10 rests, shown in detail in FIG. 6.
  • the slide 10 has the general shape of a rectangular parallelepiped. Its lower corners adjacent to the bottom 4 have lugs 11 projecting from its lateral faces, FIG. 6. In the embodiment shown, the lugs 11 have a substantially square section, but it could have a completely different shape, for example circular.
  • the slide 10 Near its face opposite the bottom 4, the slide 10 is crossed transversely by a horizontal hole 12.
  • the hole 12 has an oblong section of vertical direction.
  • a horizontal guide rod 13 mounted between the walls 7, the diameter of which is very slightly less than the width of the hole 12.
  • Another hole 14, of circular section vertically crosses the slide 10, in its middle part. Through the hole 14, the slide 10 is threaded on a vertical guide pin 15 fixed to the upper return 6 of the bottom 4.
  • a spring 16 recalling the slide down.
  • the front upper horizontal edge, opposite the bottom 4, of the slide 10 is cut so as to form a step 17 whose base 18 is slightly inclined forward relative to the horizontal and whose side 19 is vertical.
  • the slope of the base 18 is approximately 12 °.
  • the rear face of the slide 10 has in its middle part a vertical groove 20, fairly wide and shallow.
  • the base of a microswitch stop 21 which will be described below.
  • the base of the stop 21 is fixed to the slide 10 by means of one or more screws.
  • the lower part of the housing 3 contains the body of an electromagnet 22 whose rod 23 is directed vertically upwards.
  • the rod 23 is made integral with a fork 24 shown in detail in FIG. 7.
  • the fork 24 has a general U shape with two vertical branches 25 joined by a transverse base 26.
  • the branches 25 are flat plates parallel to the side walls 7 of the housing 3.
  • the base 26 is a horizontal flat plate.
  • the branches 25 and the base 26 are in one piece obtained by cutting and folding.
  • the base 26 is substantially rectangular, slightly less wide than the spacing between the side walls 7 of the housing 3.
  • the spacing between the walls 25 is slightly greater than the width of the slider 10 between its side walls, but less than the width between the external faces of the pins 11.
  • the branches 25 have a particular contour. Their rear side, close to the bottom 4, has an oblong notch 27 whose sides are horizontal and the bottom vertical. The depth of the notch 27 is substantially equal to the width of the lugs 11. The lower side of the notch 27 is located substantially at one third of the height of the branch 25, while the upper side is close to the top.
  • the top of the branches 25 comprises, from the rear towards the front, a horizontal part 28, then a forward inclined part 29.
  • the front side of the branches 25 is formed by two vertical segments 30 and 31, the vertical segment lower 31 being more forward than the upper segment 30. The segments 30 and 31 are separated by a horizontal shoulder 32 slightly higher than the lower side of the notch 27.
  • the fork 24 is integral with the rod 23 of the electromagnet by its base 26.
  • Each branch 25, FIG. 5, is practically in contact with the adjacent side wall 7.
  • the upper part of each branch 25 passes between the adjacent wall 7 and the corresponding lateral face of the slide 10.
  • the lug 11 of the latter is engaged in the notch 27.
  • the rear side of the branch 25 is supported on the bottom 4 of the housing 3.
  • the upper segment 30 is in contact on the horizontal rod 13 while the lower segment 31 is in contact on the stop 9.
  • the bottom 4 of the housing 3, the rod 13 and the stop 9 therefore constitute a vertical guide for the fork 24.
  • the finger 8 of the lever 1 is less wide than the spacing of the branches 25 of the fork 24 and can therefore pass between them.
  • a horizontal transverse axis 33 fixed between the two walls 7.
  • Two rods 34 are pivotally mounted on the axis 33, respectively near each wall 7.
  • the rods 34 are flat and parallel to the walls 7. They each comprise, at the rear of the axis 33, an arm 35 which comes to bear on the top of the corresponding branch 25 of the fork 24, then, under the axis 33 , a wider arm 36. Between the lower arms 36, is held a horizontal transverse rod 37.
  • the lower arms 36 of the rods 34 are biased forward by springs 38 working in traction.
  • the springs 38 are fixed to a horizontal transverse pin 39.
  • the arms 35 of the links 34 take a low position, when the fork 24 is itself in the low position, that is to say when the electromagnet 22 is not supplied. When the fork 24 is in the high position, the electromagnet 22 then being supplied, the arms 35 are also in the high position.
  • the arms 35 of the links 34 can be lifted by the fork 24, by supplying the electromagnet 22.
  • the electromagnet 22 will only have to overcome the return force of the springs 38.
  • the arms 36 move back and the rod 37 comes to be positioned above the step 17, pressing against its vertical flank 19 and slightly spaced from its base 18.
  • the rod 37 is slightly offset backwards with respect to the axis 33 of the rods 34.
  • the slider 10 can therefore only be moved very slightly when the panic bar is stressed, after which the base 18 of the step 17 abuts against the rod 37.
  • the thrust on the panic bar is not transmitted to the fork 24, nor therefore to the electromagnet 22.
  • the power of the electromagnet 22 is cut while the panic bar is pushed, as the base 18 of the step 17 is tilted, the rod 37 will not be blocked forward and may still get away.
  • the upper part of the housing 3 has two microswitches 40 on each side. These microswitches are controlled by the abovementioned stop 21, fixed at the rear of the slide 10.
  • the stop 21 has a flat vertical rod moving on the bottom 4 of the housing 3 and, at the upper end of the latter, two arms 41 in the form of forward directed returns. These are the arms 41 which act on two microswitches 40, FIG. 5.
  • the stop 21 has lateral extensions 42 taken between guide plates 43 fixed to the side walls 7 of the housing 3. Note that the electronic monitoring system receives the status signals from the microswitches 41 by independent lines, so that the system offers double security, which increases its reliability.
  • the stop 21 may also include, if necessary, a means modifying the state of another set of microswitches when, once the device has been unlocked, the panic bar has been pushed and the slide 10 is in the high position, the signal produced signifying that the issue has been opened.
  • the device of the invention In normal operating conditions of the panic bar system, the device of the invention is in the locked position, FIG. 1.
  • the energized electromagnet keeps finger 24 in the high position.
  • the rod 37 between the links 34 is in the front position, above the step 17 of the slide 10. It is in contact with the flank 19 of the latter, but slightly spaced from the base 18.
  • the arms 41 keep the microswitches 40 open in the rest state.
  • the slider 10 drives the stop 21 whose arms 41 close the microswitches 40 which produce two independent signals which are processed by the electronic monitoring system.
  • the latter can trigger an alarm at the central station, as well as the start of a time delay after which, if no human intervention has taken place, the supply of the electromagnet 22 is cut.
  • the fork 24 then descends and releases downward the arms 35 of the rods 34.
  • the rod 37 is therefore no longer subject to the biasing force forward of the springs 38 and, if a push is exerted on the bar anti-panic, to the play of forces applied by the side and the base of the step 17 and to the reaction force passing through the axis 33.
  • the panic bar With the device unlocked, the panic bar can be pushed until the exit opens.
  • the rod 21, by the arms 41, or other arms, can act on other microswitches to deliver a signal indicating the opening.
  • the device can only be brought back into locking position if the slide 10 is completely lowered. This implies, on the one hand, that the panic bar has returned to its rest position in FIG. 1 and that, on the other hand, the slide 10 has not remained blocked.
  • the spring 16 is therefore provided powerful enough that such an incident cannot occur. Note that the return to the lower position of the slide 10 will bring the microswitches back to the rest state. Their status changes can be taken into account by the electronic surveillance system which can indicate whether the device can be locked again or not.

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  • Emergency Management (AREA)
  • Lock And Its Accessories (AREA)
  • Push-Button Switches (AREA)

Abstract

The device is located in a housing (3), within which pivots one of the arms (1) of an anti-panic bar. …<??>On the inner finger (8) of the arm (1) rests a slide (10), the front upper edge of which is in the form of a step. The slide (10) can be displaced vertically, being driven by the finger (8), but it can be blocked by means of a transverse rod which, under the control of an electromagnet (22), by the agency of a set of two links (34) and a two-branch fork (25), comes to rest in the step slightly above its base when the slide (10) is in the low position. The base of the step is inclined slightly so that the rod (37) is always easily retractable as soon as the supply to the electromagnet is cut off, being returned forwards by springs (38). …<??>Fastened to the slide (10) is a means (21, 41) modifying the state of microcontacts (40) as soon as the slide (10) leaves its low position. …<??>The device is especially suitable for operating under the control of an electronic monitoring system. …<IMAGE>…

Description

La présente invention concerne un dispositif de verrouillage et de déverrouillage d'un moyen d'ouverture d'issue de secours et, plus particulièrement, un tel dispositif monté sur une issue soumise à un système électronique de contrôle et de surveillance.The present invention relates to a device for locking and unlocking an emergency exit opening means and, more particularly, such a device mounted on an exit subjected to an electronic control and monitoring system.

Les issues de secours des établissements ouverts au public sont munies d'organes d'ouverture, généralement des barres anti-panique, qui doivent déverrouiller ces issues sous la poussée de personnes, pour une évacuation rapide du public en cas d'accident, tel qu'un incendie. Cependant, dans les magasins, ces dispositifs d'ouverture ne peuvent être utilisés sans une surveillance particulière, faute de quoi les issues seraient aussi ouvertes pour sortir irrégulièrement des marchandises ou introduire des personnes.The emergency exits of establishments open to the public are fitted with opening devices, generally panic bars, which must unlock these exits under the pressure of people, for rapid evacuation of the public in the event of an accident, such as 'a fire. However, in stores, these opening devices cannot be used without special supervision, failing which the exits would also be open for irregularly removing goods or introducing people.

C'est pourquoi, le plus souvent, dans les lieux commerciaux, les organes d'ouverture des issues de secours sont maintenus verrouillés par un moyen électrique, tel qu'un électro-aimant sous tension. Ces moyens sont commandables à partir d'un poste central, ou par des détecteurs de chaleur ou de fumée, etc. Pour plus de sûreté, la position déverrouillée de l'organe d'ouverture correspond à l'absence de courant dans le moyen électrique.This is why, most often, in commercial places, the emergency exit opening members are kept locked by an electrical means, such as a live electromagnet. These means can be controlled from a central station, or by heat or smoke detectors, etc. For greater safety, the unlocked position of the opening member corresponds to the absence of current in the electrical means.

Le dispositif de verrouillage et de déverrouillage utilisé doit répondre à un certain nombre d'exigences. D'une part, quand il est en position verrouillée, il est essentiel qu'il ne se bloque pas quand on lui adresse une commande d'ouverture. Il arrive, par exemple, qu'une poussée soit exercée continûment sur la barre anti-panique. Cette poussée, même importante, ne doit en aucun cas s'opposer au déverrouillage du dispositif. A l'inverse, ce dernier doit pouvoir résister au mieux si des poussées violentes sont imprimées à la barre anti-panique en vue de la forcer. De plus, la résistance du dispositif, comme son aptitude au déverrouillage, doivent être assurées par des moyens mécaniques, et non pas en misant sur la puissance de l'électro-aimant, car ce dernier doit consommer le moins d'énergie possible. En effet, beaucoup de systèmes de surveillance électronique sont utilisés en tant que systèmes anti-intrusion en dehors des heures d'ouverture, dans les magasins, par exemple. En général, pour des raisons de sécurité, ces systèmes sont alimentés par des batteries en dehors des heures d'ouverture. Ils doivent donc avoir une autonomie d'au moins soixante douze heures qui représentent la durée d'un week-end prolongé. Il est nécessaire, par conséquent, de prévoir dans ces systèmes des éléments qui consomment le moins d'énergie possible.The locking and unlocking device used must meet a number of requirements. On the one hand, when it is in the locked position, it is essential that it does not block when it is sent an opening command. It happens, for example, that a thrust is exerted continuously on the panic bar. This thrust, even significant, must in no case oppose the unlocking of the device. Conversely, the latter must be able to resist at best if violent pushes are printed on the panic bar in order to force it. In addition, the resistance of the device, like its unlockability, must be ensured by mechanical means, and not by leveraging the power of the electromagnet, because the latter must consume the least possible energy. Indeed, many electronic surveillance systems are used as anti-intrusion systems outside opening hours, in stores, for example. In general, for safety reasons, these systems are powered by batteries outside of opening hours. They must therefore have an autonomy of at least seventy-two hours which represents the duration of an extended weekend. It is therefore necessary to provide elements in these systems which consume as little energy as possible.

D'autre part, le dispositif doit pouvoir engendrer des signaux de demande d'ouverture dès qu'une poussée, même légère, est exercée sur la barre anti-panique, lesdits signaux étant traités par le système électronique de surveillance, pour avertir le poste central, déclencher des temporisations avant ouverture, etc.On the other hand, the device must be able to generate opening request signals as soon as a push, even a slight one, is exerted on the panic bar, said signals being processed by the electronic surveillance system, to warn the station. central, trigger timers before opening, etc.

L'objet de l'invention est de prévoir un dispositif qui satisfasse à toutes ces exigences et qui, de plus, soit simple, solide et facile à monter.The object of the invention is to provide a device which meets all these requirements and which, moreover, is simple, solid and easy to assemble.

Dans le système d'ouverture et de fermeture comprenant le dispositif de l'invention, la barre anti-panique est portée, à ses extrémités, par deux bras pivotant dans des boîtiers fixés par leur fond sur le battant de l'issue, de chaque côté. L'un desdits boîtiers renferme la serrure proprement dite, tandis que l'autre renferme le dispositif de l'invention.In the opening and closing system comprising the device of the invention, the panic bar is carried, at its ends, by two pivoting arms in housings fixed by their bottom on the leaf of the outlet, of each side. One of said boxes contains the lock proper, while the other contains the device of the invention.

Selon une caractéristique de l'invention, le dispositif com­prend:
    -un doigt sensiblement horizontal prolongeant ledit levier de barre anti-panique de l'autre côté de son axe de pivotement, vers le fond du boîtier,
    - un coulisseau en appui sur ledit doigt et mobile verticalement, dont le bord supérieur avant a la forme d'un gradin, le flanc dudit gradin étant sensiblement vertical et la base légèrement inclinée vers l'avant,
    - une tige transversale pouvant se déplacer entre une position arrière où elle est en butée contre le flanc dudit gradin, légèrement au-dessus de sa base, quand le coulisseau est en position basse, et une position avant où elle est devant le coulisseau, un moyen de rappel de ladite tige en position avant étant prévu, ladite tige étant portée par les bras inférieurs de biellettes latérales pivotant autour d'un axe transversal situé au-dessus de ladite tige, dans le même plan vertical ou légèrement devant, quand elle est en position arrière, lesdites biellettes comportant encore des bras latéraux dirigés vers l'arrière,
    - une fourche à deux branches, dont la base est reliée à la tige d'un électro-aimant fixé dans le boîtier, les extrémités libres des deux branches coopérant avec les bras latéraux desdites biellettes pour amener ladite tige en position arrière contre le flanc dudit gradin quand l'électro-aimant est alimenté, et
    - un moyen solidaire du coulisseau qui modifie l'état de microcontacts quand le coulisseau quitte sa position basse.According to a characteristic of the invention, the device comprises:
a substantially horizontal finger extending said panic bar lever on the other side of its pivot axis, towards the bottom of the housing,
a slide bearing on said finger and movable vertically, the upper front edge of which is in the form of a step, the side of said step being substantially vertical and the base slightly inclined towards the front,
a transverse rod which can move between a rear position where it is in abutment against the side of said step, slightly above its base, when the slider is in the low position, and a front position where it is in front of the slider, a means for returning said rod to the front position being provided, said rod being carried by the lower arms of lateral links pivoting about a transverse axis situated above said rod, in the same vertical plane or slightly in front, when it is in the rear position, said rods also comprising rear arms directed towards the rear,
- a fork with two branches, the base of which is connected to the rod of an electromagnet fixed in the housing, the free ends of the two branches cooperating with the lateral arms of said rods to bring said rod into the rear position against the side of said step when the electromagnet is energized, and
- A means integral with the slide which modifies the state of microswitches when the slide leaves its low position.

Selon une autre caractéristique, ledit moyen solidaire du coulisseau a deux bras agissant sur deux microcontacts reliés à un système de surveillance électronique par deux lignes indépendants.According to another characteristic, said means secured to the slide has two arms acting on two microswitches connected to an electronic surveillance system by two independent lines.

Selon une autre caractéristique de l'invention, le coulisseau est monté coulissant sur un axe vertical solidaire du boîtier.According to another characteristic of the invention, the slide is slidably mounted on a vertical axis integral with the housing.

Selon une autre caractéristique de l'invention, l'inclinaison de la base dudit gradin est comprise entre 12°, environ, et 15°, environ.According to another characteristic of the invention, the inclination of the base of said step is between 12 °, approximately, and 15 °, approximately.

Selon une autre caractéristique de l'invention, ledit coulisseau comporte un trou transversal horizontal, de section oblongue dirigée verticalement, dans lequel est engagée une tige guide solidaire du boîtier.According to another characteristic of the invention, said slide comprises a horizontal transverse hole, of oblong section directed vertically, in which is engaged a guide rod secured to the housing.

Selon une autre caractéristique de l'invention, les branches de ladite fourche sont des plaques parallèles aux parois latérales du boîtier, dont les côtés arrière comportent une échancrure, et le coulisseau comporte des ergots sur ses faces latérales, qui sont engagés dans lesdites échancrures.According to another characteristic of the invention, the branches of said fork are plates parallel to the side walls of the housing, the rear sides of which have a notch, and the slide has lugs on its side faces, which are engaged in said notches.

Selon une autre caractéristique de l'invention, l'électro-aimant est dans la partie inférieure du boîtier et les bras latéraux desdites biellettes sont en appui sur les sommets des branches de ladite fourche.According to another characteristic of the invention, the electromagnet is in the lower part of the housing and the lateral arms of said links are in abutment on the tops of the branches of said fork.

Selon une autre caractéristique de l'invention, une butée transversale limite vers le bas le déplacement du doigt du bras de barre anti-panique.According to another characteristic of the invention, a transverse stop limits downward the movement of the finger of the panic bar arm.

Selon une autre caractéristique de l'invention, ladite butée et la tige guide engagée dans le trou du coulisseau forment avec le fond du boîtier, de chaque côté, des guides verticaux dans lesquels sont engagées les branches de ladite fourche.According to another characteristic of the invention, said stop and the guide rod engaged in the hole of the slide form with the bottom of the housing, on each side, vertical guides in which are engaged the branches of said fork.

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation préféré de l'inven­tion, ladite description étant faite en relation avec les dessins joints, parmi lesquels:

  • la Fig. 1 est une vue schématique de côté montrant un exemple de réalisation préféré du dispositif de blocage de la barre anti-panique selon l'invention, en position verrouillée,
  • la Fig. 2 est une vue identique à la Fig. 1 montrant le dispositif en position déverrouillée, sans que la barre anti-panique soit actionnée,
  • la Fig. 3 montre le dispositif quand la barre anti-panique est poussée en position d'ouverture de l'issue,
  • la Fig. 4 est une vue agrandie, de côté, de la partie essentielle du dispositif des Figs. 1 à 3,
  • la Fig. 5 est une vue de devant correspondant à la Fig. 1, et
  • les Fig. 6 et 7 sont des vues, en perspective, des pièces essentielles du dispositif représenté aux Figs. 1 à 5.
The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of a preferred embodiment of the invention, said description being made in relation to the accompanying drawings, among which:
  • Fig. 1 is a schematic side view showing a preferred embodiment of the device for blocking the panic bar according to the invention, in the locked position,
  • Fig. 2 is a view identical to FIG. 1 showing the device in the unlocked position, without the panic bar being actuated,
  • Fig. 3 shows the device when the panic bar is pushed into the open position of the exit,
  • Fig. 4 is an enlarged side view of the essential part of the device of FIGS. 1 to 3,
  • Fig. 5 is a front view corresponding to FIG. 1, and
  • Figs. 6 and 7 are perspective views of essential parts of the device shown in Figs. 1 to 5.

La barre anti-panique, non représentée, est portée à chaque extrémité par un bras tel que 1, les deux bras pivotant autour d'un même axe horizontal. Au repos, lesdits bras sont dirigés obliquement vers le bas, la barre anti-panique étant tenue entre leurs extrémités inférieures. Le pivot 2 du bras 1 se trouve dans un boîtier 3 placé sur un côté du battant de l'issue et renferme le dispositif de verrouillage de la barre anti-panique, objet de l'invention, et le pivot du bras de l'autre côté est dans un boîtier renfermant la serrure proprement dite.The panic bar, not shown, is carried at each end by an arm such as 1, the two arms pivoting about the same horizontal axis. At rest, said arms are directed obliquely downwards, the panic bar being held between their lower ends. The pivot 2 of the arm 1 is located in a housing 3 placed on one side of the door leaf and encloses the locking device of the panic bar, object of the invention, and the pivot of the arm on the other side is in a box containing the lock proper.

Le boîtier 3 comporte un fond vertical ou platine 4., Figs. 1 à 4, avec des retours horizontaux inférieur et supérieur, respectivement 5 et 6, des parois latérales 7 et un capot avant, non représenté. Aux Figs. 1 à 4, la paroi latérale de devant a été enlevée pour montrer le dispositif. Pour la même raison, le capot avant a été enlevé à la Fig. 5 et le levier 1 représenté en partie seulement.The housing 3 has a vertical bottom or plate 4., Figs. 1 to 4, with lower and upper horizontal returns, respectively 5 and 6, side walls 7 and a front cover, not shown. In Figs. 1 to 4, the front side wall has been removed to show the device. For the same reason, the front cover has been removed in Fig. 5 and the lever 1 shown in part only.

Le pivot 2 du levier 1 est monté entre les deux parois latérales 7 du boîtier 3. Par rapport au pivot 2, le levier 1 est prolongé vers le fond 4 du boîtier par un doigt 8. Au repos, le doigt 8 est sensiblement horizontal, Figs. 1 et 2. Sa face inférieure est en appui contre une butée 9 sous la forme d'une goupille horizontale tenue entre les parois 7.The pivot 2 of the lever 1 is mounted between the two side walls 7 of the housing 3. With respect to the pivot 2, the lever 1 is extended towards the bottom 4 of the housing by a finger 8. At rest, the finger 8 is substantially horizontal, Figs. 1 and 2. Its underside bears against a stop 9 in the form of a horizontal pin held between the walls 7.

Sur la face supérieure du doigt 8, repose un coulisseau 10, représenté en détail à la Fig. 6. Le coulisseau 10 a la forme générale d'un parallèlépipède rectangle. Ses coins inférieurs adjacents au fond 4 comportent des ergots 11 en saillie sur ses faces latérales, Fig. 6. Dans l'exemple de réalisation montré, les ergots 11 ont une section sensiblement carrée, mais elle pourrait avoir une toute autre forme, par exemple circulaire. Près de sa face opposée au fond 4, le coulisseau 10 est traversé transversalement par un trou horizontal 12. Le trou 12 a une section oblongue de direction verticale. Dans le trou 12, est enfilée une tige guide horizontale 13, montée entre les parois 7, dont le diamètre est très légèrement inférieur à la largeur du trou 12. Un autre trou 14, de section circulaire, traverse verticalement le coulisseau 10, dans sa partie médiane. Par le trou 14, le coulisseau 10 est enfilé sur un axe de guidage vertical 15 fixé au retour supérieur 6 du fond 4. Autour de l'axe 15, entre la paroi supérieure du coulisseau 10 et le retour 6, est prévu un ressort 16 rappelant le coulisseau vers le bas.On the upper face of the finger 8, a slide 10 rests, shown in detail in FIG. 6. The slide 10 has the general shape of a rectangular parallelepiped. Its lower corners adjacent to the bottom 4 have lugs 11 projecting from its lateral faces, FIG. 6. In the embodiment shown, the lugs 11 have a substantially square section, but it could have a completely different shape, for example circular. Near its face opposite the bottom 4, the slide 10 is crossed transversely by a horizontal hole 12. The hole 12 has an oblong section of vertical direction. In the hole 12, is threaded a horizontal guide rod 13, mounted between the walls 7, the diameter of which is very slightly less than the width of the hole 12. Another hole 14, of circular section, vertically crosses the slide 10, in its middle part. Through the hole 14, the slide 10 is threaded on a vertical guide pin 15 fixed to the upper return 6 of the bottom 4. Around a axis 15, between the upper wall of the slide 10 and the return 6, is provided a spring 16 recalling the slide down.

Le bord horizontal supérieur avant, opposé au fond 4, du coulisseau 10 est découpé de manière à former un gradin 17 dont la base 18 est légèrement inclinée vers l'avant par rapport à l'horizon­tale et dont le flanc 19 est vertical. Dans une forme de réalisation satisfaisante, la pente de la base 18 est de 12°, environ. Enfin, la face arrière du coulisseau 10 comporte dans sa partie médiane une saignée verticale 20, assez large et peu profonde.The front upper horizontal edge, opposite the bottom 4, of the slide 10 is cut so as to form a step 17 whose base 18 is slightly inclined forward relative to the horizontal and whose side 19 is vertical. In a satisfactory embodiment, the slope of the base 18 is approximately 12 °. Finally, the rear face of the slide 10 has in its middle part a vertical groove 20, fairly wide and shallow.

Dans la saignée 20, est logée la base d'une butée de microcontacts 21 qui sera décrite dans la suite. La base de la butée 21 est fixée au coulisseau 10 au moyen d'une ou plusieurs vis.In the groove 20, is housed the base of a microswitch stop 21 which will be described below. The base of the stop 21 is fixed to the slide 10 by means of one or more screws.

La partie inférieure du boîtier 3 renferme le corps d'un électro-aimant 22 dont la tige 23 est dirigée verticalement vers le haut. La tige 23 est rendue solidaire d'une fourche 24 montré en détail à la Fig. 7.The lower part of the housing 3 contains the body of an electromagnet 22 whose rod 23 is directed vertically upwards. The rod 23 is made integral with a fork 24 shown in detail in FIG. 7.

Vu de l'avant, Fig. 5, la fourche 24 a une forme générale en U avec deux branches verticales 25 réunies par une base transversale 26. Les branches 25 sont des plaques plates parallèles aux parois latérales 7 du boîtier 3. La base 26 est une plaque plate horizontale. En pratique, les branches 25 et la base 26 sont en une seule pièce obtenue par découpage et pliage.Seen from the front, Fig. 5, the fork 24 has a general U shape with two vertical branches 25 joined by a transverse base 26. The branches 25 are flat plates parallel to the side walls 7 of the housing 3. The base 26 is a horizontal flat plate. In practice, the branches 25 and the base 26 are in one piece obtained by cutting and folding.

La base 26 est sensiblement rectangulaire, légèrement moins large que l'écartement entre les parois latérales 7 du boîtier 3. L'écartement entre les parois 25 est légèrement supérieur à la largeur du coulisseau 10 entre ses parois latérales, mais inférieur à la largeur entre les faces externes des ergots 11.The base 26 is substantially rectangular, slightly less wide than the spacing between the side walls 7 of the housing 3. The spacing between the walls 25 is slightly greater than the width of the slider 10 between its side walls, but less than the width between the external faces of the pins 11.

Vues de côté, Figs. 1 à 4, les branches 25 ont un contour particulier. Leur côté arrière, voisin du fond 4, comporte une échancrure oblongue 27 dont les côtés sont horizontaux et le fond vertical. La profondeur de l'échancrure 27 est sensiblement égale à la largeur des ergots 11. Le côté inférieur de l'échancrure 27 se trouve sensiblement au tiers de la hauteur de la branche 25, alors que le côté supérieur est proche du sommet. Le sommet des branches 25 comporte, de l'arrière vers l'avant, une partie horizontale 28, puis une partie inclinée vers l'avant 29. Le côté avant des branches 25 est formé de deux segments verticaux 30 et 31, le segment vertical inférieur 31 étant plus en avant que le segment supérieur 30. Les segments 30 et 31 sont séparés par un épaulement horizontal 32 légèrement plus haut que le côté inférieur de l'échancrure 27.Side views, Figs. 1 to 4, the branches 25 have a particular contour. Their rear side, close to the bottom 4, has an oblong notch 27 whose sides are horizontal and the bottom vertical. The depth of the notch 27 is substantially equal to the width of the lugs 11. The lower side of the notch 27 is located substantially at one third of the height of the branch 25, while the upper side is close to the top. The top of the branches 25 comprises, from the rear towards the front, a horizontal part 28, then a forward inclined part 29. The front side of the branches 25 is formed by two vertical segments 30 and 31, the vertical segment lower 31 being more forward than the upper segment 30. The segments 30 and 31 are separated by a horizontal shoulder 32 slightly higher than the lower side of the notch 27.

La fourche 24 est solidaire de la tige 23 de l'électro-aimant par sa base 26. Chaque branche 25, Fig. 5, est pratiquement en contact avec la paroi latérale 7 adjacente. La partie supérieure de chaque branche 25 passe entre la paroi 7 adjacente et la face latérale correspondante du coulisseau 10. L'ergot 11 de ce dernier est engagé dans l'échancrure 27. Le côté arrière de la branche 25 est en appui sur le fond 4 du boîtier 3. A l'avant, le segment supérieur 30 est en contact sur la tige horizontale 13 alors que le segment inférieur 31 est en contact sur la butée 9. Le fond 4 du boîtier 3, la tige 13 et la butée 9 constituent donc un guide vertical pour la fourche 24. Bien entendu, le doigt 8 du levier 1 est moins large que l'écartement des branches 25 de la fourche 24 et peut donc passer entre celles-ci.The fork 24 is integral with the rod 23 of the electromagnet by its base 26. Each branch 25, FIG. 5, is practically in contact with the adjacent side wall 7. The upper part of each branch 25 passes between the adjacent wall 7 and the corresponding lateral face of the slide 10. The lug 11 of the latter is engaged in the notch 27. The rear side of the branch 25 is supported on the bottom 4 of the housing 3. At the front, the upper segment 30 is in contact on the horizontal rod 13 while the lower segment 31 is in contact on the stop 9. The bottom 4 of the housing 3, the rod 13 and the stop 9 therefore constitute a vertical guide for the fork 24. Of course, the finger 8 of the lever 1 is less wide than the spacing of the branches 25 of the fork 24 and can therefore pass between them.

Au-dessus du gradin 17, légèrement en avant de ce dernier, se trouve un axe transversal horizontal 33 fixé entre les deux parois 7. Deux biellettes 34 sont montées pivotantes sur l'axe 33, respective­ment près de chaque paroi 7. Les biellettes 34 sont plates et parallèles aux parois 7. Elles comprennent chacune, à l'arrière de l'axe 33, un bras 35 qui vient s'appuyer sur le sommet de la branche 25 correspondant de la fourche 24, puis, sous l'axe 33, un bras plus large 36. Entre les bras inférieurs 36, est tenue une tige transversale horizontale 37. Les bras inférieurs 36 des biellettes 34 sont rappelés vers l'avant par des ressorts 38 travaillant en traction. Les ressorts 38 sont fixés sur une goupille transversale horizontale 39.Above the step 17, slightly in front of the latter, there is a horizontal transverse axis 33 fixed between the two walls 7. Two rods 34 are pivotally mounted on the axis 33, respectively near each wall 7. The rods 34 are flat and parallel to the walls 7. They each comprise, at the rear of the axis 33, an arm 35 which comes to bear on the top of the corresponding branch 25 of the fork 24, then, under the axis 33 , a wider arm 36. Between the lower arms 36, is held a horizontal transverse rod 37. The lower arms 36 of the rods 34 are biased forward by springs 38 working in traction. The springs 38 are fixed to a horizontal transverse pin 39.

Les bras 35 des biellettes 34 prennent une position basse, quand la fourche 24 est elle-même en position basse, c'est-à-dire quand l'électro-aimant 22 n'est pas alimenté. Quand la fourche 24 est en position haute, l'electro-aimant 22 étant alors alimenté, les bras 35 sont également en position haute.The arms 35 of the links 34 take a low position, when the fork 24 is itself in the low position, that is to say when the electromagnet 22 is not supplied. When the fork 24 is in the high position, the electromagnet 22 then being supplied, the arms 35 are also in the high position.

En position basse des bras 35, Fig. 2, les bras inférieurs 36 des biellettes 34 sont tirés en avant par les ressorts 38. La tige 37 montée entre les bras 36 est en avant de la face avant du coulisseau 10. Dans cette position, ce dernier peut être déplacé vers le haut sous l'action du doigt 8 du bras 7. La barre anti-panique est déverrouillée et peut donc être poussée, Fig. 3. A noter que tant que la barre anti-panique ne sera pas revenue à sa position de repos, les biellettes 34 ne pourront pas pivoter, empêchées par la tige 37 qui butera contre le face avant du coulisseau 10.In the low position of the arms 35, FIG. 2, the lower arms 36 of the rods 34 are pulled forward by the springs 38. The rod 37 mounted between the arms 36 is in front of the front face of the slide 10. In this position, the latter can be moved upwards under the action of finger 8 of arm 7. The panic bar is unlocked and can therefore be pushed, FIG. 3. Note that as long as the panic bar has not returned to its rest position, the rods 34 cannot pivot, prevented by the rod 37 which will abut against the front face of the slide 10.

Par contre, la barre anti-panique étant au repos, Fig. 2, les bras 35 des biellettes 34 peuvent être levés par la fourche 24, en alimentant l'électro-aimant 22. Pour faire pivoter les biellettes 34, l'électro-aimant 22 n'aura qu'à vaincre la force de rappel des ressorts 38. En pivotant, les bras 36 reculent et la tige 37 vient se positionner au-dessus du gradin 17, en appui contre son flanc vertical 19 et légèrement écartée de sa base 18. A noter que dans cette position, la tige 37 est légèrement décalée vers l'arrière par rapport à l'axe 33 des biellettes 34. Le coulisseau 10 ne peut donc être déplacé que très légèrement quand la barre anti-panique est solli­citée, après quoi la base 18 du gradin 17 vient en butée contre la tige 37. Comme celle-ci est déportée vers l'arrière par rapport à l'axe 33, la poussée sur la barre anti-panique n'est pas transmise à la fourche 24, ni donc à l'électro-aimant 22. D'autre part, si l'alimentation de l'électro-aimant 22 est coupée pendant que la barre anti-panique est poussée, comme la base 18 du gradin 17 est inclinée, la tige 37 ne sera pas bloquée vers l'avant et pourra quand même s'escamoter.On the other hand, the panic bar being at rest, FIG. 2, the arms 35 of the links 34 can be lifted by the fork 24, by supplying the electromagnet 22. To rotate the links 34, the electromagnet 22 will only have to overcome the return force of the springs 38. By pivoting, the arms 36 move back and the rod 37 comes to be positioned above the step 17, pressing against its vertical flank 19 and slightly spaced from its base 18. Note that in this position, the rod 37 is slightly offset backwards with respect to the axis 33 of the rods 34. The slider 10 can therefore only be moved very slightly when the panic bar is stressed, after which the base 18 of the step 17 abuts against the rod 37. As the latter is offset backwards with respect to the axis 33, the thrust on the panic bar is not transmitted to the fork 24, nor therefore to the electromagnet 22. D 'other hand, if the power of the electromagnet 22 is cut while the panic bar is pushed, as the base 18 of the step 17 is tilted, the rod 37 will not be blocked forward and may still get away.

La partie supérieure du boîtier 3 comporte deux microcontacts 40 de chaque côté. Ces microcontacts sont commandés par la butée 21 déjà mentionnée, fixée à l'arrière du coulisseau 10. La butée 21 comporte une tige verticale plate se déplaçant sur le fond 4 du boîtier 3 et, à l'extrémité supérieure de cette dernière, deux bras 41 sous la forme de retours dirigés vers l'avant. Ce sont les bras 41 qui agissent sur deux microcontacts 40, Fig. 5. Au-dessus des bras 41, la butée 21 comporte des prolongements latéraux 42 pris entre des plaques guides 43 fixées aux parois latérales 7 du boîtier 3. A noter que le système de surveillance électronique reçoit les signaux d'état des micro­contacts 41 par des lignes indépendantes, si bien que le système offre une double sécurité, ce qui augmente sa fiabilité.The upper part of the housing 3 has two microswitches 40 on each side. These microswitches are controlled by the abovementioned stop 21, fixed at the rear of the slide 10. The stop 21 has a flat vertical rod moving on the bottom 4 of the housing 3 and, at the upper end of the latter, two arms 41 in the form of forward directed returns. These are the arms 41 which act on two microswitches 40, FIG. 5. Above the arms 41, the stop 21 has lateral extensions 42 taken between guide plates 43 fixed to the side walls 7 of the housing 3. Note that the electronic monitoring system receives the status signals from the microswitches 41 by independent lines, so that the system offers double security, which increases its reliability.

La butée 21 peut encore comporter, si besoin est, un moyen modifiant l'état d'un autre jeu de microcontacts quand, une fois le dispositif déverrouillé, la barre anti-panique a été poussée et que le coulisseau 10 est en position haute, le signal produit signifiant que l'issue a été ouverte.The stop 21 may also include, if necessary, a means modifying the state of another set of microswitches when, once the device has been unlocked, the panic bar has been pushed and the slide 10 is in the high position, the signal produced signifying that the issue has been opened.

En situation normale de fontionnement du système de barre anti-panique, le dispositif de l'invention est en position verrouil­lée, Fig. 1. L'électro-aimant sous tension maintient le doigt 24 en position haute. La tige 37 entre les biellettes 34 est en position avant, au-dessus du gradin 17 du coulisseau 10. Elle est en contact avec le flanc 19 de ce dernier, mais légèrement écartée de la base 18. Les bras 41 maintiennent les microcontacts 40 ouverts à l'état de repos.In normal operating conditions of the panic bar system, the device of the invention is in the locked position, FIG. 1. The energized electromagnet keeps finger 24 in the high position. The rod 37 between the links 34 is in the front position, above the step 17 of the slide 10. It is in contact with the flank 19 of the latter, but slightly spaced from the base 18. The arms 41 keep the microswitches 40 open in the rest state.

Si une poussée est exercée sur la barre anti-panique, il en résulte, par le doigt 8 du bras 1, un léger déplacement du coulisseau 10, jusqu'à ce que la base 18 arrive en butée avec la tige 37. La tige 37 est donc simultanément en butée contre la base 18 et le flanc 19. Comme on l'a mentionné précédemment, elle est alors dans le même plan vertical que l'axe 33 des biellettes 34, ou légèrement devant lui. De cette manière, d'une poussée sur la barre anti-panique, non seulement il ne résultera pas, par les bras 35, une force contre l'électro-­aimant 22, mais de plus, si la force résultante n'est pas intégrale­ment transmise à l'axe 33, sa composante tendant à faire tourner les biellettes 34 s'exercera dans le même sens que la force de l'électro-aimant 22. La résistance du dispositif à des poussées violentes sur la barre anti-panique ne sera donc pas dépendante de la puissance de l'électro-aimant. Il suffira de prévoir pour les pièces 33 à 37 une résistance mécanique appropriée.If a push is exerted on the panic bar, the result is, by the finger 8 of the arm 1, a slight displacement of the slide 10, until the base 18 comes into abutment with the rod 37. The rod 37 is therefore simultaneously in abutment against the base 18 and the sidewall 19. As mentioned previously, it is then in the same vertical plane as the axis 33 of the rods 34, or slightly in front of it. In this way, a push on the panic bar, not only will not result, by the arms 35, a force against the electromagnet 22, but moreover, if the resulting force is not fully transmitted to the axis 33, its component tending to rotate the rods 34 will be exerted in the same direction as the force of the electromagnet 22. The resistance of the device to violent pushes on the panic bar will not therefore not dependent on the power of the electromagnet. It will suffice to provide for parts 33 to 37 an appropriate mechanical strength.

Dans son léger déplacement vers le haut, le coulisseau 10 entraîne la butée 21 dont les bras 41 ferment les microcontacts 40 qui produisent deux signaux indépendants qui sont traités par le système électronique de surveillance. En pratique, celui-ci peut déclencher une alarme au poste central, ainsi que le départ d'une temporisation au bout de laquelle, si aucune intervention humaine n'a eu lieu, l'alimentation de l'électro-aimant 22 est coupée. La fourche 24 descend alors et libère vers le bas les bras 35 des biellettes 34. La tige 37 n'est donc plus soumise qu'à la force de rappel vers l'avant des ressorts 38 et, si une poussée est exercée sur la barre anti-panique, au jeu de forces appliquées par le flanc et la base du gradin 17 et à la force de réaction passant par l'axe 33. Dans tous les cas, la résultante de ces forces doit avoir une composante dirigée vers l'avant pour que la tige 37 soit effectivement rappelée vers l'avant dès que le doigt 24 descend, c'est-à-dire dès que l'alimenta­tion de l'électro-aimant est coupée. Il faut, de plus, que ce déplacement en avant de la tige 37 puisse avoir lieu sans que le coulisseau 10 doive descendre, même très légèrement. Cette condition est remplie en prévoyant la base 18 inclinée vers l'avant. Une inclinaison de l'ordre de 12 à 15 degrés est satisfaisante.In its slight upward movement, the slider 10 drives the stop 21 whose arms 41 close the microswitches 40 which produce two independent signals which are processed by the electronic monitoring system. In practice, the latter can trigger an alarm at the central station, as well as the start of a time delay after which, if no human intervention has taken place, the supply of the electromagnet 22 is cut. The fork 24 then descends and releases downward the arms 35 of the rods 34. The rod 37 is therefore no longer subject to the biasing force forward of the springs 38 and, if a push is exerted on the bar anti-panic, to the play of forces applied by the side and the base of the step 17 and to the reaction force passing through the axis 33. In all cases, the result of these forces must have a forward-facing component so that the rod 37 is effectively biased forward as soon as the finger 24 descends, that is to say as soon as the supply of the electromagnet is cut. It is also necessary that this movement forward of the rod 37 can take place without the slider 10 having to descend, even very slightly. This condition is fulfilled by providing the base 18 inclined forward. A tilt of the order of 12 to 15 degrees is satisfactory.

Le dispositif étant déverrouillé, la barre anti-panique peut être poussée jusqu'à l'ouverture de l'issue. La tige 21, par les bras 41, ou d'autres bras, peut agir sur d'autres microcontacts pour délivrer un signal indiquant l'ouverture.With the device unlocked, the panic bar can be pushed until the exit opens. The rod 21, by the arms 41, or other arms, can act on other microswitches to deliver a signal indicating the opening.

A partir d'une position d'ouverture, le dispositif ne peut être ramené en situation de verrouillage que si le coulisseau 10 est complètement redescendu. Ceci implique, d'une part, que la barre anti-panique soit revenue à sa position de repos de la Fig. 1 et que, d'autre part, le coulisseau 10 ne soit pas resté bloqué. Le ressort 16 est donc prévu assez puissant pour qu'un tel incident ne puisse se produire. A noter que le retour à la position basse du coulisseau 10 ramènera les microcontacts à l'état de repos. Leurs changements d'état pourront être pris en compte par le système de surveillance électronique qui pourra indiquer si le dispositif peut à nouveau être verrouillé ou non.From an open position, the device can only be brought back into locking position if the slide 10 is completely lowered. This implies, on the one hand, that the panic bar has returned to its rest position in FIG. 1 and that, on the other hand, the slide 10 has not remained blocked. The spring 16 is therefore provided powerful enough that such an incident cannot occur. Note that the return to the lower position of the slide 10 will bring the microswitches back to the rest state. Their status changes can be taken into account by the electronic surveillance system which can indicate whether the device can be locked again or not.

Claims (9)

1) Dispositif de verrouillage et de déverrouillage d'un moyen d'ouverture d'issue de secours dans lequel une barre anti-panique est portée, à ses extrémités, par deux bras pivotant dans des boîtiers fixés par leur fond sur le battant de l'issue, de chaque côté, l'un desdits boîtiers renfermant la serrure proprement dite, et l'autre renfermant ledit dispositif, caractérisé en ce qu'il comprend:
      - un doigt (8) sensiblement horizontal prolongeant ledit levier (1) de barre anti-panique de l'autre côté de son axe de pivotement (2), vers le fond du boîtier (3),
      - un coulisseau (1) en appui sur ledit doigt (8) et mobile verticalement, dont le bord supérieur avant a la forme d'un gradin (17), le flanc (19) du gradin (17) étant sensiblement vertical et la base (18) légèrement inclinée vers l'avant,
      - une tige transversale (37) pouvant se déplacer entre une position arrière où elle est en butée contre le flanc (19) du gradin (17), légèrement au-dessus de la base (18), quand le coulisseau (10) est en position basse, et une position avant où elle est devant le coulisseau (10), un moyen de rappel (38) de la tige (37) en position avant étant prévu, la tige (37) étant portée par les bras inférieurs (36) de biellettes latérales (34) pivotant autour d'un axe transversal (33) situé au-dessus de la tige (37), dans le même plan vertical ou légèrement devant, quand elle est en position arrière, les biellettes (34) comportant encore des bras latéraux (35) dirigés vers l'arrière,
      - une fourche (24) à deux branches (25), dont la base (26) est reliée à la tige (23) d'un électro-aimant (22) fixé dans le boîtier (3), les extrémités libres des deux branches (25) coopérant avec les bras latéraux (35) des biellettes (34) pour amener la tige (37) en position arrière, contre le flanc (19) du gradin (17) quand l'électro-aimant (22) est alimenté, et
      - un moyen (21, 41), solidaire du coulisseau (10), qui modifie l'état de microcontacts (4) quand le coulisseau (10) quitte sa position basse.1) Locking and unlocking device for an emergency exit opening means in which a panic bar is carried, at its ends, by two pivoting arms in housings fixed by their bottom to the leaf of the 'outlet, on each side, one of said boxes enclosing the lock proper, and the other enclosing said device, characterized in that it comprises:
a substantially horizontal finger (8) extending said panic bar lever (1) on the other side of its pivot axis (2), towards the bottom of the housing (3),
- A slide (1) bearing on said finger (8) and movable vertically, the upper front edge of which is in the form of a step (17), the side (19) of the step (17) being substantially vertical and the base (18) slightly tilted forward,
- A transverse rod (37) which can move between a rear position where it abuts against the side (19) of the step (17), slightly above the base (18), when the slide (10) is in low position, and a front position where it is in front of the slide (10), a return means (38) of the rod (37) in the front position being provided, the rod (37) being carried by the lower arms (36) side links (34) pivoting about a transverse axis (33) located above the rod (37), in the same vertical plane or slightly in front, when it is in the rear position, the links (34) further comprising lateral arms (35) directed towards the rear,
- a fork (24) with two branches (25), the base (26) of which is connected to the rod (23) of an electromagnet (22) fixed in the housing (3), the free ends of the two branches (25) cooperating with the lateral arms (35) of the rods (34) to bring the rod (37) to the rear position, against the side (19) of the step (17) when the electromagnet (22) is supplied, and
- A means (21, 41), integral with the slide (10), which modifies the state of microswitches (4) when the slide (10) leaves its low position. 2) Dispositif selon la revendication 1, caractérisé en ce que ledit moyen (21,41) comporte deux bras agissant sur deux microcontacts reliés à un système de surveillance électronique par deux lignes indépendantes.2) Device according to claim 1, characterized in that said means (21,41) comprises two arms acting on two microswitches connected to an electronic surveillance system by two independent lines. 3) Dispositif selon la revendication 1 ou 2, caractérisé en ce que le coulisseau (1)) est monté coulissant sur un axe vertical (15) solidaire du boîtier (3).3) Device according to claim 1 or 2, characterized in that the slide (1)) is slidably mounted on a vertical axis (15) integral with the housing (3). 4) Dispositif selon l'une des revendications 1 à 3 caractérisé en ce que l'inclinaison dudit gradin est comprise entre 12 et 15 degrés environ.4) Device according to one of claims 1 to 3 characterized in that the inclination of said step is between 12 and 15 degrees approximately. 5) Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le coulisseau (10) comporte un trou transversal horizontal (12), de section oblongue dirigée verticalement, dans lequel estd engagée une tige guide (13) solidaire du boîtier (3).5) Device according to one of claims 1 to 4, characterized in that the slide (10) has a horizontal transverse hole (12), of oblong section directed vertically, in which estd engaged a guide rod (13) integral with the housing (3). 6) Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que les branches (25) de la fourche (24) sont des plaques parallèles aux parois latérales (7) du boîtier (3), dont les côtés arrière comportent une échancrure (27), et en ce que le coulisseau (10) comporte des ergots (11) sur ses faces latérales, qui sont engagés dans les échancrures (27).6) Device according to one of claims 1 to 5, characterized in that the branches (25) of the fork (24) are plates parallel to the side walls (7) of the housing (3), whose rear sides have a notch (27), and in that the slide (10) has lugs (11) on its lateral faces, which are engaged in the notches (27). 7) Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que l'électro-aimant (22) est dans la partie inférieure du boîtier (3) et en ce que les bras latéraux (35) des biellettes (34) sont en appui sur les sommets des branches (25) de la fourche (24).7) Device according to one of claims 1 to 6, characterized in that the electromagnet (22) is in the lower part of the housing (3) and in that the lateral arms (35) of the rods (34) are supported on the tops of the branches (25) of the fork (24). 8) Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'une butée transversale (9) limite vers le bas le déplacement du doigt (8) du bras (1) de la barre anti-panique.8) Device according to one of claims 1 to 7, characterized in that a transverse stop (9) limits downward the movement of the finger (8) of the arm (1) of the panic bar. 9) Dispositif selon la revendication 8, caractérisé en ce que la butée (9) et la tige guide (13) engagée dans le trou (12) du coulisseau (10) forment avec le fond du boîtier (3), de chaque côté, des guides verticaux dans lesquels sont engagées les branches (25) de la fourche (24).9) Device according to claim 8, characterized in that the stop (9) and the guide rod (13) engaged in the hole (12) of the slide (10) form with the bottom of the housing (3), on each side, vertical guides in which the legs (25) of the fork (24) are engaged.
EP88460010A 1987-07-09 1988-06-30 Device for locking or unlocking an emergency exit device Withdrawn EP0299899A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8710005A FR2617893B1 (en) 1987-07-09 1987-07-09 DEVICE FOR LOCKING AND UNLOCKING AN EMERGENCY EXIT
FR8710005 1987-07-09

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EP0299899A1 true EP0299899A1 (en) 1989-01-18

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EP88460010A Withdrawn EP0299899A1 (en) 1987-07-09 1988-06-30 Device for locking or unlocking an emergency exit device

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US (1) US4906034A (en)
EP (1) EP0299899A1 (en)
FR (1) FR2617893B1 (en)

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Also Published As

Publication number Publication date
FR2617893A1 (en) 1989-01-13
FR2617893B1 (en) 1994-12-23
US4906034A (en) 1990-03-06

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