EP2884030A1 - System for locking and unlocking a door leaf - Google Patents

Abstract

The invention relates to a system for locking and unlocking an opening (12), the system comprising a movable bolt (30) and a movable locking piece (32) which is adapted to cooperate with the bolt, the bolt being suitable to occupy a first deployed position in which it is held under the action of the locking piece and a second extended position in which it is no longer subjected to the action of the locking piece. The locking piece (32) is designed to occupy a locking position in which it holds the bolt in its first extended position in the absence of external action on said piece and move from its locking position to an unlocking position under the action of an external force. The system includes a movable latch (34) which is adapted to deploy and retract upon closure and opening of the sash and to prevent the return of the locking member to its locking position when the Bolt is in its second deployed position.

Description

The invention relates to a system for locking and unlocking an opening.

We know of the document EP 1 222 350 a locking and unlocking system of a door which comprises a movable latch bolt cooperating with a latch to exert a locking function when the door is closed. The bolt is held in the locking position against the striker under the action of a first end of a locking piece which occupies a first locking position.

The opposite second end of the workpiece is operable to disengage the first end of the bolt lock, thereby allowing the bolt to disengage from the striker and the door to open.

To close the door, it is expected that the strike is retractably mounted in the frame to be able to return the bolt to its locking position when the door is closed.

This system has the disadvantage including having to change the waste to be implemented.

It would be useful to have a locking and unlocking system of a door or, more generally of an opening, which can be installed with the door without having to change the environment of the door and in particular the mounted strike on the frame.

• un pêne mobile qui est apte à se déployer et à se rétracter lors de la fermeture et de l'ouverture de l'ouvrant, le pêne étant apte à occuper une première position déployée lorsque l'ouvrant est fermé et une deuxième position déployée lorsque l'ouvrant est ouvert,
• une pièce de verrouillage mobile qui est apte à coopérer avec le pêne,

caractérisé en ce que la pièce de verrouillage est conçue pour, d'une part, occuper une position de verrouillage dans laquelle elle empêche le passage du pêne de sa première position déployée à sa position rétractée en l'absence d'action extérieure sur ladite pièce et, d'autre part, passer de sa position de verrouillage à une position de déverrouillage sous l'action d'une force extérieure afin de permettre l'ouverture de l'ouvrant, le système comprenant un contre pêne mobile qui est apte à se déployer et à se rétracter lors de la fermeture et de l'ouverture de l'ouvrant, le contre pêne étant apte à empêcher le retour de la pièce de verrouillage de sa position de déverrouillage à sa position de verrouillage lorsque le pêne est dans sa deuxième position déployée et l'ouvrant est ouvert.The present invention thus relates to a system for locking and unlocking an opening, the system comprising:

• a movable bolt which is able to deploy and retract during the closing and opening of the opening, the bolt being adapted to occupy a first deployed position when the door is closed and a second position deployed when the opening is open,
• a movable locking piece which is able to cooperate with the bolt,

characterized in that the locking piece is adapted to, on the one hand, occupy a locking position in which it prevents the passage of the bolt from its first deployed position to its retracted position in the absence of external action on said part and, secondly, from its locking position to an unlocking position under the action of an external force to allow the opening of the opening, the system comprising a mobile against bolt which is adapted to deploy and retract during closing and opening of the opening, the against bolt being able to prevent the return of the locking piece from its unlocking position to its locking position when the bolt is in its second extended position and the opening is open.

All three parts forming the locking / unlocking system is mounted on the opening without the striker needs to be modified (standard strike, of any shape, without the strike is retractable) .It is even It is possible not to have a striker, the frame of the frame then acting as a striker if its height is sufficient.

As soon as the opening is in the open position, the bolt and the bolt are deployed. Against the bolt acts at the same time on the locking piece to prevent it from returning to the locking position and prevents the retraction of the bolt during the closing movement of the opening.

• le pêne est apte dans sa position rétractée, à empêcher le retour de la pièce de verrouillage à sa position de verrouillage ;
• la pièce de verrouillage comporte un premier élément d'accrochage et le contre pêne comporte un deuxième élément d'accrochage ou de retenue, le premier élément d'accrochage étant placé sur la trajectoire du deuxième élément d'accrochage et apte à venir en butée contre lui lorsque le contre pêne passe de sa position rétractée à sa position déployée et que le pêne passe à sa deuxième position déployée ;
• la pièce de verrouillage comporte une première partie apte à coopérer avec le pêne et une deuxième partie apte à recevoir une force extérieure ; la force extérieure peut être exercée d'un côté de l'ouvrant sur une barre anti-panique avec laquelle la pièce de verrouillage est amenée à coopérer ou, du côté opposé de l'ouvrant, sur un demi-ensemble (béquille) qui est relié à un fouillot avec lequel la pièce de verrouillage est amenée à coopérer ;

• le pêne et le contre pêne sont montés chacun sur un même premier axe de rotation et sont aptes à pivoter autour de l'axe de rotation indépendamment l'un de l'autre sur une plage angulaire de rotation donnée ;
• le système comprend des premiers moyens élastiques qui sont aptes à exercer sur le pêne et le contre pêne un effort élastique tendant à les maintenir en position déployée ;
• la pièce de verrouillage est montée sur un deuxième axe de rotation parallèle au premier axe de rotation et est apte à pivoter autour du deuxième axe de rotation ;
• le système comprend des deuxièmes moyens élastiques qui sont aptes à exercer sur la pièce de verrouillage un effort élastique tendant à la maintenir en position de verrouillage ;
• les premiers moyens élastiques sont aptes à exercer sur le contre pêne un effort de plus grande intensité que l'effort exercé par les deuxièmes moyens élastiques ;
• au moins l'un des deux éléments que sont le pêne et le contre pêne comporte une butée qui est placée sur la trajectoire de l'autre élément lors du mouvement de pivotement du pêne à partir d'une position déployée, la butée étant agencée pour que, d'une part, le pêne et le contre pêne pivotent indépendamment l'un de l'autre, à partir d'une position déployée, sur la plage angulaire de rotation donnée et, d'autre part, au-delà de cette plage angulaire, le pêne entre en contact avec le contre pêne par l'intermédiaire de la butée et entraine ledit contre pêne dans la poursuite du mouvement de pivotement ;
• le pêne comprend une face frontale destinée à coopérer avec une gâche et une face arrière dite de blocage configurée pour coopérer avec la pièce de verrouillage ;
• la face arrière de blocage présente une concavité qui est orientée vers la pièce de verrouillage et centrée sur un axe dit de centrage de la face arrière ; la face arrière ainsi profilée permet d'orienter les efforts vers l'axe de centrage ;
• l'axe de centrage de la face arrière de blocage correspond au deuxième axe de rotation de la pièce de verrouillage ; ainsi, les efforts de blocage ne perturbent pas le comportement de la pièce de verrouillage et la position de cette dernière reste stable quels que soient les efforts appliqués sur l'ouvrant ;
• la face avant du pêne présente une convexité qui est centrée sur un axe dit de centrage de la face frontale ;
• l'axe de centrage de la face frontale et le premier axe de rotation sont décalés de manière à créer un couple de forces permettant la fermeture de l'ouvrant lorsque la face frontale du pêne entre en contact avec la gâche et/ou l'huisserie sur laquelle la gâche est montée ;
• lors du passage de sa position de verrouillage à sa position de déverrouillage et inversement, la pièce de verrouillage est apte à coopérer avec un élément de tringlerie monté rotatif autour d'un axe de rotation afin de provoquer sa rotation dans un sens ou dans le sens opposé ;
• le pêne est creux et accueille à l'intérieur le contre-pêne, une ouverture étant pratiquée dans le pêne pour le passage du contre-pêne en vue de sa coopération avec la gâche.

According to other possible characteristics taken separately or in combination with each other:

• the bolt is adapted in its retracted position, to prevent the return of the locking piece to its locking position;
• the locking part comprises a first fastening element and the against bolt comprises a second fastening element or retainer, the first fastening element being placed on the path of the second fastening element and adapted to abut against him when the against bolt passes from its retracted position to its deployed position and the bolt moves to its second deployed position;
• the locking piece comprises a first portion adapted to cooperate with the bolt and a second portion adapted to receive an external force; the external force can be exerted on one side of the opening on an anti-panic bar with which the locking piece is brought to cooperate or, on the opposite side of the opening, on a half-assembly (stand) which is connected to a follower with which the locking piece is made to cooperate;

• the bolt and the against bolt are each mounted on the same first axis of rotation and are pivotable about the axis of rotation independently of one another over a given angular range of rotation;
• the system comprises first resilient means which are capable of exerting on the bolt and the against bolt an elastic force tending to maintain them in the deployed position;
• the locking piece is mounted on a second axis of rotation parallel to the first axis of rotation and is pivotable about the second axis of rotation;
• the system comprises second elastic means which are able to exert on the locking member an elastic force tending to maintain it in the locking position;
• the first elastic means are capable of exerting on the against bolt a force of greater intensity than the force exerted by the second elastic means;
• at least one of the two elements that are the bolt and against bolt has a stop which is placed on the path of the other element during the pivoting movement of the bolt from an extended position, the stop being arranged to that, on the one hand, the bolt and counter bolt pivot independently of one another, from an extended position, on the given angular range of rotation and, secondly, beyond this angular range, the bolt comes into contact with the against bolt through the abutment and causes said bolt against in the continuation of the pivoting movement;
• the bolt comprises a front face intended to cooperate with a keeper and a so-called rear locking face configured to cooperate with the locking piece;
• the rear locking face has a concavity which is oriented towards the locking piece and centered on a so-called centering axis of the rear face; the thus profiled rear face makes it possible to orient the forces towards the centering axis;
• the centering axis of the locking rear face corresponds to the second axis of rotation of the locking piece; thus, the locking forces do not disturb the behavior of the locking piece and the position of the latter remains stable regardless of the forces applied to the leaf;
• the front face of the bolt has a convexity which is centered on a so-called centering axis of the front face;
• the centering axis of the end face and the first axis of rotation are offset so as to create a pair of forces allowing the opening of the opening when the front face of the bolt comes into contact with the strike and / or the frame on which the striker is mounted;
• when passing from its locking position to its unlocking position and vice versa, the locking piece is adapted to cooperate with a linkage element rotatably mounted about an axis of rotation to cause its rotation in one direction or in the direction opposite;
• the bolt is hollow and accommodates inside the counter-bolt, an opening being made in the bolt for the passage of the counter-bolt for cooperation with the strike.

The invention also relates to an assembly for locking and unlocking an opening which comprises at least one locking and unlocking system as briefly described above and an anti-panic bar associated with said at least one system and whose the actuation causes the passage of the locking piece from its locking position to its unlocking position.

• l'ensemble comprend plusieurs systèmes de verrouillage et de déverrouillage qui sont reliés entre eux par un mécanisme de tringlerie rotatif qui est actionné par le mouvement de rotation de l'élément de tringlerie rotatif mentionné ci-dessus ;
• l'ensemble comprend un premier système de verrouillage et de déverrouillage disposé de manière sensiblement alignée avec la barre anti-panique et deux systèmes de verrouillage et de déverrouillage disposés respectivement en partie haute et basse de l'ouvrant et qui sont aptes chacun à être déverrouillés à partir de l'actionnement de la barre anti-panique.

According to other possible characteristics:

• the assembly comprises a plurality of locking and unlocking systems which are interconnected by a rotary linkage mechanism which is actuated by the rotational movement of the rotary linkage member mentioned above;
• the assembly comprises a first locking and unlocking system arranged substantially aligned with the anti-panic bar and two locking and unlocking systems arranged respectively in the upper and lower part of the opening and which are each adapted to be unlocked from the actuation of the panic bar.

• la figure 1 est une vue schématique générale de mise en situation sur un ouvrant d'un système de verrouillage et de déverrouillage de l'ouvrant associé à une barre anti-panique selon un mode de réalisation de l'invention ;
• la figure 2 est une vue schématique générale agrandie du système et de la barre anti-panique de la figure 1 ;
• les figures 3a-c sont des vues schématiques agrandies en perspective sous différents angles du système de verrouillage et de déverrouillage de l'ouvrant sans la barre anti-panique ;
• les figures 4a-b à 16 sont des vues successives montrant la mise en oeuvre du système de verrouillage et de déverrouillage des figures 2 et 3a-c ;
• les figures 17 à 19 illustrent un autre mode de réalisation de l'invention.

Other characteristics and advantages will become apparent from the following description, given solely by way of nonlimiting example and with reference to the appended drawings, in which:

• the figure 1 is a general diagrammatic view of setting on a leaf of a locking and unlocking system of the opening associated with an anti-panic bar according to one embodiment of the invention;
• the figure 2 is an enlarged general schematic view of the system and the anti-panic bar of the figure 1 ;
• the Figures 3a-c are schematic views enlarged perspective from different angles of the locking system and unlocking the opening without the panic bar;
• the Figures 4a-b through 16 are successive views showing the implementation of the locking and unlocking system of the figures 2 and 3a-c ;
• the Figures 17 to 19 illustrate another embodiment of the invention.

• un système de verrouillage et de déverrouillage 14,
• une barre anti-panique 16 associée au système 14 et qui coopère avec ce dernier (par appui d'un utilisateur sur la barre) pour commander le déverrouillage du système 14 et donc l'ouverture de la porte 12 par rapport au dormant 18 (huisserie) qui l'encadre.

As represented in figure 1 and designated by the general reference denoted 10, a set of locking and unlocking of an opening such as a door 12 comprises:

• a locking and unlocking system 14,
• an anti-panic bar 16 associated with the system 14 and which cooperates with the latter (by pressing a user on the bar) to control the unlocking of the system 14 and thus the opening of the door 12 relative to the frame 18 (frame ) who frames it.

On the figure 1 , the system 14 is in the locked position (so the assembly 10 is locked) and the door is kept closed.

The locking and unlocking assembly 10 (without the door and the frame) is illustrated in perspective on the figure 2 .

The anti-panic bar 16 of the assembly 10 is articulated pivotably about two half-shafts 17 which are respectively fixed to two support members 20 and 22 axis framing the bar along its dimension longitudinal. Only the half-axis 17 fixed to the axle support part 20 is represented on the figure 2 .

The axis support 22 is covered with a hood while the cover of the axis support 20 which is visible on the figure 1 was removed on the figure 2 for the sake of clarity of the presentation.

The axis support 20 is for example a generally square part. The half-axis 17 of the bar 16 is secured to the part 20a (platinum) of the part 20 which extends perpendicularly to a large face of the door. Part 20b parallel to the large face of the door is fixed, for example by screwing (screw holes are shown on the figure 2 ), on the door 12.

A part 24 called body is mounted on the axis support 20. The body 24 comprises, on the one hand, a part 26 having a general gantry shape which is backed to the part 20a of the part 20 and, on the other hand two side portions 28a, 28b, which extend laterally in the lower part of the frame, on either side thereof and outwards. The lateral portions 28a, 28b are fixed to the portion 20b of the axis support and serve as attachment bases for the body 24. The portion 26 comprises two parallel uprights (vertical on the figure 2 ) 26a, 26b which, at the bottom, are connected to the side portions 28a, 28b and, at the top, are joined by a horizontal wall 26c.

The body 24 serves as mounting support for the locking and unlocking system 14 which will now be described with reference to the figures 2 and 3a-c .

The figure 3a illustrates the system 14 of the figure 2 in isolation, that is to say without the panic bar 16, the body 24 and the axis support 20.

• un pêne mobile 30 qui est apte à se déployer, d'une part, dans une première position déployée lorsqu'il est dans une position de verrouillage/blocage de la porte (système 14 en position verrouillée) et, d'autre part, dans une deuxième position déployée lorsqu'il est dans une position de déverrouillage/déblocage de la porte (système 14 en position déverrouillée) et que la porte est ouverte ; le pêne est également apte à adopter une position rétractée pour ouvrir et fermer la porte ;
• une pièce de verrouillage mobile 32 qui est apte à coopérer avec le pêne en empêchant sa rétractation (lorsque la porte est verrouillée) lors d'une tentative d'ouverture de la porte sans passer par le déverrouillage de la pièce 32 ;en l'absence de tentative d'ouverture le pêne n'est pas nécessairement en contact avec la pièce de verrouillage 32 ;
• un contre-pêne mobile 34 qui est apte à se déployer dans une position déployée lorsque le pêne est dans sa deuxième position déployée (porte ouverte) et à adopter une position rétractée pour ouvrir et fermer la porte ; le contre-pêne est apte à coopérer avec la pièce de verrouillage lors de l'ouverture et de la fermeture de la porte.

Le pêne 30 et le contre-pêne 34 sont tous deux montés à rotation autour d'un premier axe de pivotement A1 parallèle à la surface de la grande face de la porte et aux éléments 20b, 28a et 28b précités (figure 2). L'axe A1 est fixé perpendiculairement aux deux montants parallèles 26a, 26b du portique 26, en partie basse de ceux-ci. L'axe A1 est orienté verticalement sur la figure 1.The system 14 comprises:

• a moveable bolt 30 which is able to deploy, on the one hand, in a first deployed position when it is in a locking / locking position of the door (system 14 in the locked position) and, on the other hand, in a second deployed position when in a position of unlocking / unlocking the door (system 14 in position unlocked) and the door is open; the bolt is also adapted to adopt a retracted position to open and close the door;
• a movable locking piece 32 which is adapted to cooperate with the bolt by preventing its retraction (when the door is locked) during an attempt to open the door without going through the unlocking of the piece 32; in the absence attempting to open the bolt is not necessarily in contact with the locking piece 32;
• a moveable counter-bolt 34 which is able to deploy in an extended position when the bolt is in its second deployed position (open door) and to adopt a retracted position to open and close the door; the counter-bolt is adapted to cooperate with the locking piece when opening and closing the door.

The bolt 30 and the counter-bolt 34 are both rotatably mounted about a first pivot axis A1 parallel to the surface of the large face of the door and to the elements 20b, 28a and 28b mentioned above ( figure 2 ). The axis A1 is fixed perpendicular to the two parallel uprights 26a, 26b of the gantry 26, in the lower part thereof. Axis A1 is oriented vertically on the figure 1 .

The locking piece 32 is rotatably mounted about a second pivot axis A2 parallel to the first axis A1. The axis A2 is fixed perpendicular to the two uprights 26a, 26b of the gantry 26, in the upper part thereof ( figure 2 ).

Separate elastic means are provided for holding, on the one hand, the bolt 30 and the counter-bolt 34 and, on the other hand, the locking piece 32 in a locked position of the system 14 (closed door) which is illustrated schematically on the figures 1 and 4a-b .

In these figures, the system 14 is shown mounted on the large face 12a of the door near one, noted 12b, of the two vertical longitudinal edges 12b, 12c (on the figure 1 ) of the door, opposite a keeper 36 attached to the frame 18.

One of the two side posts of the bolt 30 has been removed from the Figures 4a-b and 5 to 9 for the sake of clarity. On the figure 4b and the following figures 4b and 5 to 8 the counter-bolt 34 is not shown.

As shown on the figure 3a , the bolt 30 is a hollow part in which is housed the counter-bolt 34.

The bolt 30 comprises two parallel lateral arms 38 and 40 in the lower part of which the axis A1 is mounted through ( figures 2 and 3a ) perpendicular to the arms.

The two arms 38, 40 extend in a direction perpendicular to the axis A1 (upwards on the figures 2 and 3a ) and away from it.

The two arms then widen to each form an advance 42, 44 such that the arms and their respective advance extend respectively in two parallel planes.

Each arm and its advance have a general shape of beak or pick head in profile view ( figure 3a ) and each form a lateral amount of the bolt 30.

The two lateral uprights are joined on the front face by a curved (convex) end wall or face 46 which extends in arcuate form from the front free end 42a, 44a of each projection upwards up to the plumb. free rear edge 38a, 40a of each arm. As shown on the figure 3c (Side view), the profile of the end face 46 is for example a portion of a circle centered on the centering axis of the front face B1. The centering axis B1 and the first axis of rotation A1 are parallel to each other but staggered so as to create a pair of forces allowing the closing of the opening when the end face 46 of the bolt comes into contact with the striker 36 and / or the frame 18 on which the striker is mounted. In closed position ( figs 4a-b ), this offset of the axes also contributes to keeping the bolt 30 in its deployed position in contact with the striker 36.

The design of the bolt 30 mentioned above provides a free space inside the envelope delimited by the lateral uprights 38, 42 and 40, 44 and the front wall (front face) 46.

This free space serves to accommodate the counter-bolt 34 visible as a whole on the figure 3e , as well as on Figures 3a, 3b and 4a .

The bolt 30 is open in its lower part located under the front wall 46 and under each projection 42, 44 so as to provide an opening 45 in which the counter-bolt 34 partially engages.

The front face of the bolt is formed by the front (outer) face of the front wall 46 and its lower edge 46a ( fig 2 ), the outer faces of the two arms 38, 40, the lower faces of the two projections 42, 44 and the opening 45.

The counter-bolt34 is also hollow ( fig.3e ) but it is closed on all its front face and its side faces unlike the bolt.

The counter-bolt 34 comprises two side walls or flanks 50 and 52, parallel to each other, in the lower part of which the axis A1 is mounted through ( figures 2 and 3a ), perpendicular to the walls.

The bolt 30 and the counter-bolt 34 are both mounted rotatably about the axis A1 and can rotate each about this axis independently of one another within certain limits that will be defined later.

As shown on figures 3a , 3rd and 4th , the side walls 50 and 52 each have a general V shape in profile view.

The walls are joined at the front (at their front edge) by a front wall 54 also curved (convex). This convexity allows the counter-bolt 34 to establish in the center of the front wall points of contact with the keeper 36 It will be noted that the end face 46 of the bolt 30 has a double curvature: a first curvature centered on the centering axis B1 of the figure 3c (aid in closing the opening) and a second curvature perpendicular to the first and which has the same orientation as the curvature of the counter-bolt 34. The respective curvatures of the same orientation of the bolt 30 and counter-bolt 34 play the same role as that described above for the counter-bolt and allow to accept misalignment of the system 14 (during installation). Thus, even with a not perfectly aligned installation of the system 14 (a little bias), the points of contact with the strike are located in the center of the two parts 30 and 34 and the operation of the system 14 is therefore little disturbed.

The counter-bolt 34 is arranged inside the bolt 30 so as to project through the opening 45 formed in the lower part of the bolt ( figures 2 and 3a ), below a plane defined by the advances 42 and 44 and the free lower edge 46a ( fig 2 ) of the front wall 46.

The counter-bolt 34 thus configured has the general shape of a wheelbarrow of which one of the two arms has been removed. The counter-bolt is supported on the striker 36 of the figure 4a (closed door) via its front wall 54 independently of the bolt 30 and thus serves as strike detector.

The counter-bolt 34 also comprises an arm 56 which extends, from the rear upper free edge of the side wall 50, towards the rear, away from this wall and in alignment thereof.

The arm 56 has a shape configured to form, simply and with little material, a retaining element intended to cooperate with a fastening element of the locking piece 32.

For example, the arm has a wavy shape, namely curved downwards and curved upwards at its free end 56a. The free end curved upwards serves as retaining element against the bolt 34.

The arm 56 also comprises near its base with the side wall 50, a member 56b forming a stop. This element 56b (boss) protrudes laterally outwardly from the counter-bolt relative to the arm 56, (perpendicularly to the latter and to the wall 50) over a distance that is greater than the lateral spacing between the side wall 50 and the lateral amount (lateral arm 38 and advanced 42) of the bolt 30. The element 56b is thus arranged in alignment with the advance 42 and therefore on its path during the rotational movement of the bolt.

It will be noted that the counter-bolt has in the lower part of its front wall 54 a dropped edge 54a which is configured to abut against the outer edge of the plate 20b ( fig 2 ) after pivoting about the axis A1 by a predetermined amplitude. This arrangement makes it possible to limit the movement of the counter-bolt when it deploys (in case of opening of the door).

According to a variant, the arm 56 may alternatively be arranged on the side wall 52 (the locking piece 32 is then configured in correspondence).

According to another variant not shown the counter-bolt may adopt a different shape and include a centered arm and not located on one of the two flanks of the counter-bolt.

According to another variant not shown, the arm may be replaced by a rearward extension of the side wall 50, the side wall 52 is also extended symmetrically.

According to another variant not shown, the retaining member 56b of the arm may be replaced by another type of element or retaining member, requiring or not to modify accordingly the latching element of the locking piece 32.

According to another variant not shown, the abutment element 56b can take another form.

As mentioned above, the system 14 comprises elastic means 60 which exert on the bolt 30 and against the bolt 34 a force tending to maintain each in the deployed position, particularly in the first deployed position of the bolt of the figure 4a (system 14 locked and door closed).

These elastic means 60 (first elastic means) take for example the form of spiral springs 60a, 60b wound around the first axis A1 on the part of the latter disposed inside the counter-bolt 34 ( Figures 3a and 3b ).

A first spiral spring 60a is mounted wound on a first portion of the axis A1 and comprises a branch whose free end 60a1 bears on a portion of the inner portion of the bolt 30 ( figure 3b ) which is configured to laterally lock said free end in a housing. The side walls of this housing allow to guide the free end 60a1 during subsequent movements of the bolt and counter-bolt during the opening and closing of the door.

A second spiral spring 60b is mounted wound on a second portion of the axis A1 (remote from the first portion longitudinally) and has a free end not shown which bears against the rear inner face of the bolt 34.

The spiral springs 60a and 60b are joined together by a flat branch 60c in the general shape of a frame. This branch is supported on the part 20b (plate) of the shaft support part 20 ( figure 2 ).

The bolt 30 comprises at its upper part a so-called locking rear face 62 ( figs 3a-b ) which is profiled or configured to cooperate with the locking piece 32. In particular, this rear face has a concavity (visible on the figure 3c ) oriented towards the locking piece and which is centered on a centering axis coinciding with the axis A2. This configuration thus makes it possible to return the forces to which the bolt 30 is subjected on the axis A2. The bolt also comprises a central projection 64 which extends from the inner wall of said bolt, away from it and beyond. beyond the rear face 62. This projection acts as a possible support for the locking piece 32.

• une structure centrale 70 formant un corps ayant sensiblement une forme générale de L avec une branche horizontale 70a et une branche verticale 70b,
• une structure supérieure 72 formant une tête montée à l'extrémité supérieure de la branche verticale 70b du L,
• une structure inférieure 74 formant des jambes 74a, 74b qui s'étendent parallèlement entre elles, vers le bas, à partir de l'extrémité libre de la branche horizontale 70a du L. Les jambes prennent appui sur un fouillot 75 qui reçoit un carré (non représenté) traversant la porte dans son épaisseur de manière à déboucher sur la face (extérieure) de la porte opposée à celle portant la barre anti-panique. Le carré est activé par un demi-ensemble extérieur (béquille généralement débrayée et qui nécessite une clé pour son embrayage) disposé de l'autre côté de la porte lorsque l'utilisateur veut débloquer la porte du côté extérieur La tête 72 comporte une première partie 76 qui est apte à coopérer avec la face arrière 62 du pêne 30 et une deuxième partie 78 qui est apte à recevoir une force extérieure F (figures 3a et 3d). Cette force est transmise à la deuxième partie 78 par l'intermédiaire de la barre anti-panique 16 lorsque l'utilisateur appuie sur celle-ci.

The locking or locking part 32 generally comprises, in particular with reference to the figure 3d :

• a central structure 70 forming a body having substantially a general shape of L with a horizontal branch 70a and a vertical branch 70b,
• an upper structure 72 forming a head mounted at the upper end of the vertical leg 70b of the L,
• a lower structure 74 forming legs 74a, 74b which extend parallel to each other, downwards, from the free end of the horizontal leg 70a of L. The legs rest on a follower 75 which receives a square ( not shown) through the door in its thickness so as to open on the (outer) face of the door opposite to that carrying the anti-panic bar. The square is activated by an outer half-assembly (kickstand generally disengaged and which requires a key for its clutch) arranged on the other side of the door when the user wants to unlock the door on the outside side The head 72 has a first part 76 which is able to cooperate with the rear face 62 of the bolt 30 and a second part 78 which is able to receive an external force F ( figures 3a and 3d ). This force is transmitted to the second part 78 via the panic bar 16 when the user presses it.

The locking piece 32 is rotatably mounted about the second axis of rotation A2 which passes through the head 72 in its intermediate portion between the two parts 76 and 78. The axis A2 is substantially arranged in the alignment of the vertical leg 70b of the L and is attached to two side flaps 72a, 72b of the head 72 through which it passes. This axis is rotatably mounted in the two uprights 26a, 26b ( fig 2 ).

Second resilient means 82 are mounted on the head and about the second axis A2 to exert on the first portion 76 of the head an elastic force tending to maintain the first portion 76 in the locking position. Given a functional clearance between the first portion 76 (free end 76a thereof) and the rear locking face 62, the locking piece is not necessarily in contact with the bolt. This arrangement makes it possible not to favor either an over-locking or an unlocking. The bolt 30 is thus locked whatever the angular position of the locking piece 32. It will be noted that the free end 76a is convex so as to match the shape of the concavity of the rear locking face 62.

The second portion 78 forms a lever which, under the action of a support (F), causes the pivoting of the locking piece 32 about the axis A2 as indicated by the arrows on the figures 3a and 3d .

More particularly, the elastic means 82 take the form of two spiral springs 82a, 82b wound around the axis A2, respectively on either side of the head.

The two springs 82a, 82b each have a free end and are joined at their opposite end by a branch 82c which bears on the top of the first portion 76 of the head. Thus arranged, the elastic means 82 exert on the first part 76 (and thus on the locking piece 32) a force which tends to keep the free end 76a in its locking position.

The locking piece 32 also comprises a lateral structure 84 (laterally offset structure) which extends laterally from the horizontal branch 70a of the L towards the arm 56 of the counter-bolt 34.

The lateral structure 84 has an upper portion 86 which is provided with a fastening element 86a extending laterally towards the The latching element 86a has a lateral extension which places it on the trajectory of the retaining element 56a of the arm 56 during the pivoting movement of the counter-bolt 34. hooking 86a and retaining 56a are thus made to cooperate as illustrated on the figure 3a during the kinematics of the different pieces that will be detailed later with reference to Figures 4a to 14 .

Lateral structure 84 also has a lower portion 88 whose free descending end 88a is enlarged.

The system 14 also comprises a third axis of rotation A3 (parallel to the axes A1 and A2) materialized by a bar 79 on which is provided a fork or crankshaft 90 for receiving the enlargement 88a ( figures 3ab and 3d -). The bar 79 is bent in its central part ( 3B ) so as not to interfere with the follower 75 shown on the figure 3d . The entire axis A3 / bar 79 and the fork forms a linkage element. The linkage element, more particularly the bar 79 has at each of its two opposite ends a member 92 such as a ball support which is intended to be connected to another linkage element (not shown here but on the Figures 18 and 19 The axle A3 is also mounted perpendicularly between the two lateral uprights 26a and 26b of the gantry 26 and fixed thereto ( Fig. 2 ).

It will be noted that in the embodiment of the figure 1 (single-point version) the A3 axis is not useful. It will be used in the multi-point embodiment of Figures 17 to 19 .

We will now describe with reference to Figures 4a to 14 the kinematics of movement of the various components of the locking and unlocking system 14 during the implementation of said system for opening and closing the door 12.

The Figures 4a and 4b illustrate the system 14 and its mechanism in the locked position (closed door).

The bolt 30 is held in abutment in its first deployed position against the upper face 36a of the striker 36 via its profile-shaped beak (shoulder), under the action of the elastic means 60a. The first portion 76 of the head 72 of the piece 32 is held in its position locking under the action of the resilient means 82 facing the inner rear profiled face (locking face) 62 of the bolt 30 and kept away from it by the functional game mentioned above. The locking piece 32, via the end 76a of its first portion 76, thus serves as a backstop for the bolt which can not retract under the action of a force applied directly to the door (without use the panic bar 16). The bolt, in this position, is in its locking position.

The counter-bolt 34 ( Fig. 4a ) is, for its part, maintained in abutment against the side face and / or the upper edge 36b of the striker 36 under the action of the elastic means 60b.

In this position, the retaining elements 56a and hooking 86a respectively counter-bolt 34 and the attachment piece 32 do not cooperate.

The figure 5 illustrates the implementation of unlocking the system 14 to open the door 12 (the counter-bolt and the axis A3 have not been shown for the sake of clarity).

In order to do this, the user conventionally presses on the panic bar 16 of the Figures 1 and 2 , thereby causing it to pivot about the half-axis 17 as indicated by the arrow marked P on the figure 2 .

The second portion 78 of the head of the locking piece 32 (not shown) crosses the wall 20a of the axis support and extends under the bar 16 ( figure 2 ).

Pressing on the bar causes a support F on the second support portion 78 and the pivoting of the locking piece 32 as indicated on the figure 5 .

The pivoting of the locking piece 32 from its locking position ( Figures 4a-b ) to its unlocking position ( figure 5 ) causes the pivoting of the axis A3 (bar 79) via the widening cooperation 88a - fork 90. This movement will be useful for the embodiment of the figure 17 .

Note that the anti-panic bar 16 abuts on the plate 20a (not shown in the figures) and this stop determines the extreme unlocked position of the locking piece 32. This stroke limiter device prevents that the locking piece 32 is not subjected to excessive force (resulting directly from the support of the user on the bar) and therefore it is damaged.

The pivoting of the locking piece 32 releases the bolt 30 but it remains in its first extended position under the action of the elastic means 60a. The door 12 is thus always maintained in closed position but becomes manoeuvrable. The user can continue to press the anti-panic bar which is in abutment and transmit a thrust force to the door via the plates or directly transmit the thrust force to the door with his other hand, as illustrated by the arrow on the figure 6 .

When the bearing force on the door is greater than the force exerted by the elastic means 60a on the rear of the bolt 30 (retaining force), the bolt 30 slides by its beak or shoulder on the upper face 36a of the striker and thus erases progressively by pivoting around the first axis A1 ( Fig. 6 ).

The retraction of the bolt 30 during this movement passes it under the locking piece 32 ( Figs. 6 and 7 ), which prevents the latter from returning to its locking position of the figure 4a . The locking piece 32 is indeed no longer solicited by the action of the user on the panic bar 16 and, subjected to the action of its elastic means 82, it tends to return to its locking position by the absence of the retracted bolt.

As the retraction movement of the bolt 30 continues, the latter comes into contact with the abutment member 56b (boss) of the counter-bolt 34 ( figure 3a ) and thus causes the counter-bolt in a retracting movement (not shown on the figure 7 ).

The pressing on the door continues ( figures 7 and 8 ), the bolt 30 crosses the top edge 36b of the striker and slides along it and the frame 18. The latch still not shown (in the retracted position) also slides along the striker and the doorframe. The bolt 30 in the retracted position still prevents the return of the locking piece 32 in the locking position.

When the door is open ( figure 9 ), the bolt 30 and counter-bolt 34 have exceeded the frame 18 of the figure 8 (it is above the bolt and counter-bolt) and are no longer constrained by the latter in their retracted position. They can then be deployed under the action of their respective resilient means 60a and 60b and occupy an extended position ( figure 9 ) which is a second extended position for the bolt and a first deployed position for the counter-bolt (this deployed position is limited by the flange 54a which abuts on the outer edge of the plate 20b.

When the counter-bolt 34 moves from its retracted position to its deployed position, the curved rear portion (bent) 56a of the arm 56 comes into contact with the fastener finger 86a of the locking piece 32. The finger 86a is then held in the upper position by the arm 56, which prevents the return of the piece 32 to its locking position. Thus, in this position where the bolt is deployed, it is the counter-bolt which ensures the locking of the locking piece.

The bolt 30 can not be locked in its second position deployed by the locking piece 32.

Under a closing action of the door exerted by a user (rising arrow on the figure 10 ), the bolt 30 comes into contact with the frame 18 (lower edge 18a).

Due to the geometry of the bolt 30 (convex front face 46), the latter gradually fades by contact of its curved end face 46 with the frame 18. The contact forces between the face 46 and the frame are oriented towards axis B1 (axis of the figure 3c ). The offset of the axes A1 and B1 creates a pair of forces which gradually tends to cause the bolt 30 to pivot from its extended position to its retracted position as indicated by the arrow on the Figures 10 to 12 . The bolt 30 thus retracts from its second deployed position because the locking piece 32 is always retained in its unlocking position by the counter-bolt 34.

Insofar as the boss 56b of the counter-bolt is offset angularly with respect to the bolt 30 (in particular with respect to its rear face; figure 3a ), a rotation movement of the bolt 30 independent of that of the counter-bolt 34 is allowed relative to the axis A1 on the angular range corresponding to the aforementioned angular offset.

The positioning of the boss 56b relative to the rear face of the bolt (rear edge of the projection 42) is such that, when this rear face contacts the boss, the upper part of the end face 46 of the bolt is located under the first part 76 of the head of the locking piece 32 ( figure 11 ).

Thus, the retraction movement of the bolt 30 in turn causes the retracting movement of the bolt 34 which then disengages from the finger 86a of the locking piece 32. The locking of this piece 32 is no longer provided by the against -pene 34 but again by the bolt 30 which continues its retraction passing under the head of the locking piece ( figure 12 ).

The locking piece 32 is thus always maintained in the unlocking position.

During the closing movement of the door the counter-bolt 34 retracted slides along the frame 18, then the striker 36.

The closing action continues ( figure 13 ) and the bolt 30 begins to deploy from its retracted position when the end face 46 passes the top edge or edge 36b of the striker ( figure 14 ). The counter-bolt 34 remains in the retracted position and the locking piece 32 is held in the unlocked position.

When the door is completely closed ( figure 15 ), the bolt returns to its first deployed position (bolt out), thus releasing the locking piece 32 which takes up its locking position / bolt lock as on the Figures 4a-b .

Against the bolt 34 remains, in turn, in the retracted position (pressed) resting on the upper edge of the striker 36.

The opening force of the door and therefore the unlocking / unlocking force of the locking and unlocking system 14 is reduced compared to a conventional anti-panic bar mechanism.

Indeed, as illustrated on Figures 4a-b and 5 it is sufficient to unlock / unlock the bolt 30 by actuating the locking piece 32 which forms a pivoting lever.

Note that the locking and unlocking system 14 comprises a reduced number of parts (three parts that are the bolt 30, the counter-bolt 34 and the locking piece 32), which results in a relatively low economic cost by compared to conventional systems.

The figure 15 illustrates another advantage of the system 14 according to the invention.

The system 14 cooperates via the bolt 30 with a bearing surface (face 36a) of the keeper 36 which is parallel to the surface of the large face 12a of the door. This arrangement allows the system 14 to operate in the same way (in particular the counter-bolt acts in the same way in cooperation with the striker and with the bolt and the locking piece) over a wide range of clearance J between the frame 18 and the door 12. In the absence of the invention, it is necessary to adjust the position of the striker so that the counter-bolt and strike are correctly positioned. Thanks to the invention the counter-bolt is active on a wider range of play than before. The striker does not need to be adjusted, it suffices for the striker to be of sufficient height.

According to a variant not shown, the bearing surface 36a may not be parallel and / or not flat.

The Figures 17 to 19 illustrate another embodiment according to the invention in which the system described with reference to the preceding figures is applied for the locking and unlocking of an opening in a multi-point version.

The figure 17 represents the door 12 of the figure 1 assigned the same references and carrying the system 14 described above.

This system 14 is part of a locking and unlocking assembly 100 which also comprises in the up position and in the down position respectively two locking and unlocking systems similar to the system 14 and which are connected to said system 14 by a rotary linkage mechanism. .

The rotary linkage mechanism comprises a first and a second rotary linkage element 102, 104 which are each connected respectively to the members 92 (ball supports) fitted to the two opposite ends of the linkage element A3 / 79 of the system 14 of FIGS. figures 3a-b and 3d . The rotary linkage member 102 (respectively 104) is connected at the top (or bottom) to a locking and unlocking system 106 102 (or 108) forming the bottom attachment point.

On the figure 18 the protective cover of the system 108 has been kept while that of the system 106 has been removed to reveal the locking piece 132 modified with respect to the piece 32. The counter-bolt 134 has also been modified.

As shown by way of example on the figure 19 , the locking piece 132 comprises a head 172 whose front end intended to come into contact with the bolt 30 remains unchanged. However, the rear end no longer includes a bearing portion 78. The part comprises a body 170 which extends substantially perpendicular to the head and which, at its base, has two legs 170a, 170b which are raised upwards. to form a fork. A tube 180 is equipped at one end with a head 180a which is positioned between the legs 170a-b and which is configured to cause the locking piece 132 to pivot about its pivot axis A2 when said tube is - even rotated around its axis. The tube is equipped at its opposite end with a member 180b identical to the member 92, namely for example a ball support. This member 180b is connected in turn to the linkage element 102 which is in alignment.

The counter-bolt in this example carries a central arm 156 whose free end comes under the locking piece to prevent it from impeding the return of the bolt to its first deployed position once it has been deployed in his second position. The system 108 has the same structure as that just described and is connected identically to the linkage element 104.

In the position illustrated on the figure 17 the door 12 is closed and the systems 14, 106 and 108 are locked.

To unlock the door, proceed as for the embodiment of the Figures 1 to 16 pressing the panic bar 16 (or from the other side of the door with a specific key).

During the pivoting movement of the locking piece 32 of the figures 3a-b and 3d the widening 88a remains held between the two branches of the fork 90, which causes the latter, and therefore the axis A3 / bar 79, to pivot. This pivoting movement of the linkage element A3 / 79 allows in turn to drive in rotation the other two linkage elements 102, 104 to which each member 92 is respectively connected.

The simultaneous rotation of the linkage elements 102, 104 in turn causes the rotation of the tubes 180 ( Fig. 19 ) of the two systems 106 and 108 and thus the pivoting of the locking member 132, which frees the respective bolts 30 of said systems.

Thus, the assembly 100 which has just been described comprises a rotary linkage system which works in rotation instead of working in translation.

Conventionally, the rods of the anti-panic multi-point mechanisms must be adjusted in length when they are placed on the door. Generally, the high rods must always be cut at the time of installation. Thus, a systematic adjustment of the upper rod and / or the part that receives it is expected.

Thanks to the rotary rod mechanism described above, the length of the rods (in a certain range of lengths) may not be perfectly adapted to the dimensions of the door without this hindering the operation. This eliminates a tedious adjustment operation at the time of installation.

Claims (15)

System for locking and unlocking an opening, the system comprising: - A movable bolt (30) which is adapted to deploy and retract during closing and opening of the opening (12), the bolt being adapted to occupy a first deployed position when the opening is closed and a second deployed position when the opening is open, - A movable locking piece (32) which is adapted to cooperate with the bolt, characterized in that the locking piece (32) is designed to, on the one hand, occupy a locking position in which it prevents the passage of the bolt (30) from its first deployed position to its retracted position in the absence of external action on said piece and, on the other hand, from its locking position to an unlocking position under the action of an external force to allow the opening of the opening, the system comprising a counter bolt mobile (34) which is adapted to expand and retract upon closure and opening of the opening, the against bolt (34) being adapted to prevent the return of the locking piece (32) of its unlocking position at its locking position when the bolt (30) is in its second extended position and the opening is open. System according to claim 1, characterized in that the bolt (30) is adapted, in its retracted position, to prevent the return of the locking piece (32) to its locking position. System according to claim 1 or 2, characterized in that the locking piece (32) comprises a first hooking element (86a) and the against bolt (34) comprises a second hooking element (56a), the first element hooking being placed on the path of the second attachment element and adapted to abut against it when the against bolt passes from its retracted position to its deployed position and the bolt moves to its second deployed position. System according to one of claims 1 to 3, characterized in that the bolt (30) and the against bolt (34) are each mounted on the same first axis of rotation (A1) and are able to pivot about the axis of rotation independently of each other over a given angular range of rotation. System according to claim 4, characterized in that it comprises first resilient means (60) which are able to exert on the bolt and the against bolt an elastic force tending to maintain them in the deployed position. System according to claim 4 or 5, characterized in that the locking piece (32) is mounted on a second axis of rotation (A2) parallel to the first axis of rotation and is pivotable about the second axis of rotation. System according to claim 6, characterized in that it comprises second elastic means (82) which are able to exert on the locking piece (32) an elastic force tending to keep it in the locking position. System according to claims 5 and 7, characterized in that the first resilient elastic means (60) are able to exert on the against bolt a force of greater intensity than the force exerted by the second elastic means (82). System according to one of claims 1 to 8, characterized in that the bolt (30) comprises a front face (46) intended to cooperate with a striker and a so-called rear locking face (62) configured to cooperate with the piece of locking. System according to claim 9, characterized in that the rear locking face (62) has a concavity which is oriented towards the locking piece and centered on a so-called centering axis of the rear face. System according to claims 6 and 10, characterized in that the centering axis of the locking rear face (62) corresponds to the second axis of rotation (A2) of the locking piece. System according to one of claims 9 to 11, characterized in that the end face (46) of the bolt has a convexity which is centered on a so-called centering axis (B1) of the end face. System according to claims 4 and 12, characterized in that the centering axis (B1) of the end face (46) and the first axis of rotation (A1) are shifted in such a way as to create a pair of forces enabling the closing of opening it when the front face of the bolt comes into contact with the striker and / or the frame on which the striker is mounted. Set of locking and unlocking of an opening, characterized in that it comprises at least one locking and unlocking system (14) according to one of claims 1 to 13 and an anti-panic bar (16) associated with said at least one system and whose actuation causes the passage of the locking piece (32) from its locking position to its unlocking position. An assembly according to claim 14, characterized in that it comprises a plurality of locking and unlocking systems (106, 108) which are such that when moving from its locking position to its unlocking position and vice versa, the locking piece ( 32) is adapted to cooperate with a linkage element (79) rotatably mounted about an axis of rotation (A3) in order to cause its rotation in one direction or in the opposite direction, said systems being interconnected by a mechanism of rotation. rotary linkage (102, 104) which is actuated by the rotational movement of the rotary linkage member (79).

Images