EP3707329B1 - Electromagnetic locking door closure assembly - Google Patents

Description

The present invention relates to locksmith equipment with electromagnetic locking which is manufactured in metal carpentry to be mounted on door leaves in situations where it is sought to obtain high operating safety in opening and closing doors while respecting the requirements of industrial exploitation under favorable economic conditions.

There are known locksmithing assemblies used in such conditions in which electromagnetic locking means between the frame and the leaf in the closed position comprise a first profile of the upright receiving electromagnetic suction cups and a second profile of the upright receiving counterplates capable of cooperating with suction cups by magnetic attraction or repulsion. The two profiles are configured for each other on the frame.

The assembly is completed by a circuit for controlling and powering the suction cups. When, in the closed position, the mobile (or opening) leaf closes on the fixed (or fixed) frame, the activation of the electromagnetic locking means couples each counter plate with the corresponding suction cup, these two cooperating elements facing each other.

In the most common case, the first profile is configured to constitute a strip profile, more simply called a strip in the trade, which is configured to be fixed by mounting on the frame, namely generally the fixed frame of the frame framing the sash, while the second section is configured to be fixed by mounting on the sash, or leaf. However, the reverse is possible without difficulty, and there are even post profile configurations which are designed to receive either the suction cups or the backing plates. The one that mounts on the opening is treated here as being a handle profile, on the grounds that it carries a handle allowing manual action on the sash.

The prior art in the matter has sometimes provided, as described for example in the patent document US 5865483, published February 2, 1999 , to double the electromagnetic locking means of a lock with a retractable bolt, the bolt of which is ejected into the bolt of a fixed striker plate when, when closing the door, electromagnetic suction cups and counterplates of the lock come approaching each other. The documents US 5,865,483 A and FR 2 882 774 A3 also disclose a door closure assembly comprising electromagnetic locking means further with a mechanical lock with locking bolt.

The invention proposes to combine mechanical lock and electromagnetic lock in a completely different way. In principle, the mechanical lock being closed while the electromagnetic locking means have not been activated, it is not the bolt which is actuated, but a special keeper which is movable to open a bolt in which it has been engaged. This special striker will be called a trigger, to distinguish it from the striker associated with the bolts in traditional locks.

The invention makes it possible to take advantage of the advantages of electromagnetic locks, in particular in terms of locking security and convenience of operation, while providing a method of opening and closing the door that can be used as an emergency, for example by case of malfunction of the electrical circuits necessary for controlling the electromagnetic means in normal operation. In this, the door closure assembly according to the invention will also find great interest in the equipment of premises commonly used by people of the Jewish religion. In this case, on Sabbath days, the electromagnetic type locking means will have been deliberately inactivated and the mechanical lock will have been controlled, most frequently from the inside, to bring it into the configuration where the bolt is engaged in the lock. the bolt formed by the trigger in front of the striker face of the headband. Then, people who return to the premises have this mechanical lock, which is controlled from the outside, without involving the less use of electricity, to operate the mobile trigger in displacement towards the position which opens passage to the bolt by retracting the mobile empenage.

More specifically, in the preferred embodiments, the mechanical lock comprises on the one hand a mechanism for controlling the bolt, possibly a simple pull tab acting against a spring, and on the other hand a trigger control mechanism between a closed door position and a release position of the connection between the bolt and the bolt where it suffices to grasp the handle to open the door, by opening or pushing according to each specific case.

• La figure 1 représente des éléments essentiels de l'ensemble dans une vue partielle en éclaté et en perspective distinguant en particulier le bandeau recevant les ventouses électromagnétiques du profilé de poignée qui complète avec lui le système à ventouses et contre-plaques constituant les moyens de verrouillage électromagnétique.
• La figure 2 est une vue plus détaillée de la partie centrale de l'ensemble au niveau des moyens mécaniques de verrouillage et déverrouillage de la porte, réalisés sous la forme d'une serrure à cylindre et clé complétant un mécanisme de pêne rétractable s'enclenchant dans un empênage de gâche.
• La figure 3 schématise une vue prise vers le profilé de poignée depuis l'intérieur du bandeau pour montrer la coopération entre la gâchette et le pignon d'un panneton à roue tels qu'ils coopèrent pour escamoter l'empênage mobile et libérer ainsi le pêne que comportent les moyens mécaniques même s'il se trouve en position sorti.
• La figure 4 est une vue longitudinale en coupe partielle, homologue de la figure 3.
• La figure 5 représente schématiquement l'ensemble suivant l'invention, comportant le bandeau et le profilé de poignée dans leur position accouplée, dans une vue en coupe au niveau d'une ventouse électromagnétique et de la contre-plaque associée.
• Les figures 6 et 7 sont des vues en coupe d'un profilé de bandeau équipé d'un profilé de rehausse s'utilisant en rattrapage d'assiette quand, notamment dans des travaux de rénovation, on doit faire face à un faux-aplomb sur un dormant existant.

The invention will now be more fully described in its essential characteristics and advantages with reference to a particular embodiment of a door closure assembly according to the invention and with the aid of the appended figures and drawings in which:

• The figure 1 represents essential elements of the assembly in a partial exploded view and in perspective distinguishing in particular the headband receiving the electromagnetic suction cups from the handle profile which completes with it the system of suction cups and counter-plates constituting the electromagnetic locking means.
• The figure 2 is a more detailed view of the central part of the assembly at the level of the mechanical means of locking and unlocking the door, made in the form of a cylinder and key lock complementing a retractable bolt mechanism engaging in a bolt of waste.
• The picture 3 schematizes a view taken towards the handle profile from inside the headband to show the cooperation between the trigger and the pinion of a wheel bit such that they cooperate to retract the movable bolt and thus release the bolt that comprises the mechanical means even if it is in the extended position.
• The figure 4 is a longitudinal view in partial section, homologous to the picture 3 .
• The figure 5 schematically shows the assembly according to the invention, comprising the headband and the handle section in their coupled position, in a cross-sectional view at the level of an electromagnetic lock and the associated counter-plate.
• The figures 6 and 7 are cross-sectional views of a headband profile fitted with a riser profile used to adjust the trim when, particularly in renovation work, one has to deal with a false plumb on an existing frame.

The figures show, in a particular embodiment, a door closing assembly with electromagnetic locking equipped with an emergency mechanical lock with unlocking trigger, in an example of application where it is more particularly designed to equip premises intended to receive people of the Jewish religion.

The objective is to make the most of the potential of electromagnetic locking closing systems even though people on Sabbath, respecting the Sabbath requirements of the Jewish religion, should not have to touch any electrical control device.

But the same needs could arise in many other applications to which the invention would be just as suitable. In practice, the invention provides the convenience of an efficient mechanical device for shorting the electromagnetic locking system. For example, the advantage would be to allow the opening of a door with an electromagnetic lock when the electrical control of this system is accidentally broken down. In Sabbath applications, it is rather a question of allowing people to enter the premises on Sabbath days, the electromagnetic locking system having been voluntarily deactivated.

The assembly according to the invention as shown in the figures comprises the conventional elements of electromagnetic locking systems as they may have been described in various publications. From this point of view we will do here reference in particular to the entire description contained in the French patent published under the number FR 2 865 230 .

This is how we find there a strip profile 1 which is configured to be fixed on one of the two leaves of the door, generally a fixed frame provided by the fixed frame which frames the door, which does not was not represented. The particular case described assumes that it is in this strip that the electromagnetic suction cups 12 ( fig. 5 ), together with the elements of their power supply. The cooperating profile, which is fixed by mounting on the other leaf (opening 3 on the figure 2 ) is illustrated in the form of a handle profile 5. It is configured to receive the counter-plates, made of ferromagnetic material. The two profiles are of course fixed on their respective supports in a position such that the counter-plates come to be placed opposite the electromagnetic suction cups when the opening is applied to the fixed frame in the arrangement where the two profiles are assembled, as it is illustrated on the figure 5 .

The actual handle is assembled by sliding along the base profile, the only one visible on the figures 1 and 2 . On the other hand, it is visible at 14 on the figure 5 . Depending on the particular embodiments, it is arranged all along the handle profile or only on a part of the latter at breast height for manual entry.

The mechanical lock device specific to the invention is illustrated broken down into 4 on the figure 1 . On this one sees the case 6 of a cylinder lock. It is housed in the receiving headband of the suction cups in a free space between them. A cover which has not been represented closes the headband from place to place, leaving free access to the suction cups 12 for the cooperating counter-plates, also leaving free access to the cylinder of the lock for its operation by a key.

Of this mechanical lock, the figures 1 and 2 schematize on the one hand the cylinder, here a European cylinder 7, whose key slot is accessible by a window 8 formed through the handle profile, and on the other hand the bolt 9 which is in particular a latch bolt , where piston bolt, with bevelled face, which retracts at against a spring (not shown) to release the door opening. By means of this lock, one does not act on the bolt. The movement of the trigger 22 is controlled, along the headrest formed by the face 11 of the headband, between a cocked position placing the empenage that it forms in correspondence with that of the associated bolt, and an unlocking position by retraction of the empenage.

In a non-limiting way, being a particular embodiment, the bolt of the system according to the invention is here assumed to be maneuverable by a pull tab passing through the opposite face of the headband. For good security conditions vis-à-vis the risk of break-in, the mechanism for operating the bolt must not be accessible from outside the space to be protected. On the other hand, as a variant of the half-turn bolt, it would be preferable to use a bolt with bidirectional control between the extended position and the retracted position, or several bolts with simultaneous control, possibly from a cylinder mechanism other than that which controls the unlocking. by the trigger. It will also be noted that the notion of mechanical lock is not intended to exclude so-called electromechanical locks, so for example electropiston bolt mechanisms.

Returning to the figure 1 , the end of the cylinder that can be seen under the strip belongs to the trigger control lock. Indeed, in particular embodiments of the assembly according to the invention, provision is made to make the cylinder accessible from the opposite side of the door, therefore through the leaf on which the strip is fixed. Moreover, given that it is expected that the unlocking by action on the bolt is carried out from inside the habitat by means of a pull tab of the bolt, we see there appear a suitable clearance provided through the side face of the headband opposite the exit of the bolt and through the homologous side face of the handle profile.

The unlocking control device 4 of the mechanical lock causes the cylinder 7 to cooperate with a movable plate which is designated here by the term trigger, with a double pattern that it provides a bolt and that unlocking involves moving it away from a cocked position to release the bolt from its grip.

For this purpose this trigger 22 has a rack toothing 23 ( fig. 1 ) with which the pinion 17 of a wheel bit located at the outlet of the cylinder 7 meshes. . The rotation of the pinion by means of the key driving the bit causes the movement of the trigger along the facing walls falling respectively from the headband and from the handle profile in their assembled position.

In the closed cocked position of the mechanical lock, the trigger is located in an extreme position where it provides a striker bolt 25 capable of receiving and imprisoning the bolt 9 when the door is closed. When the lock is operated to open the door, the same trigger is pulled to the right in the orientation seen on the figures 1 and 2 , to the left as seen on the figures 3 and 4 . In its part on the left of the figure 2 it is hollowed out along a profile 25 in two hooked levels which moves in operation in front of a tail opening 26 provided for the bolt 9 through the striker which constitutes the internal wall of the side face 16 of the handle profile, between this opening and a homologous tail opening which faces through the side face 11 of the headband profile.

It will be noted that although the invention is particularly suitable and therefore described here for combining a mechanical lock device with electromagnetic locking means, it would also be advantageous to use it in combination with other types of closure involving a current electric, namely in particular an electro-piston lock, comprising electric means for controlling the withdrawal of the bolt.

On the figures 6 and 7 there is shown schematically in section an accessory element of the door closure assembly according to the invention which consists of a headband extension making it possible to compensate for the false plumb between the headband profile and the frame specific to an existing door receiving this profiled.

This riser 30 has the same profile as the headband profile 1 which it completes, as regards a part of the latter, with a bottom 31 and two side faces 32 and 33. Although this is not clearly the case in the figures it may be advantageous to provide that these side faces come to reign with those of the headband profile itself when the riser is completely pressed on the headband for a minimum recovery plumb.

The riser profile has the same openings as the headband profile for the passage of fixing screws in the frame receiving the headband. The gap between its bottom and that of the headband profile itself, in other words the gap between the two bottoms, is adjustable according to the plumb thickness that needs to be made up. To this end, bolts 35 are provided which are screwed into the thickness of the bottom of the section until they bear at their end against the bottom 31 of the riser. The figure 6 corresponds to a minimum attitude recovery and the figure 7 to a relative position useful in the event of significant out-of-plomb.

Claims (7)

1. Door closing assembly

   comprising electromagnetic locking means for locking the door in a closed position by magnetic attraction between magnetic clutch suckers (12) and cooperating counter-plates (13), which are housed respectively in the one and in the other of two profiles brought against each other, said profiles comprising a carrier band profile (1) fitting on the door frame and a handle profile (2) fitting on the door leaf,

   and further comprising a mechanical lock (6) with a bolt (9) for locking the carrier band profile on the handle profile,

   characterised in that said bolt (9) is associated with a trigger mechanism for displacing a trigger tumbler (22) that is movable between an interlocking position of the bolt out of the carrier band profile into a keeper notch provided in the handle profile and an unlocking position wherein said bolt (9) is released out of said keeper.
2. Door closing assembly according to Claim 1, wherein the mechanical lock is of the type with a cylinder (6) and key device and a gear web having a pinion (17) for driving a rack of teeth of said trigger tumbler (22 ).
3. Door closing assembly according to Claim 2, wherein accessing to the cylinder for controlling the mechanical lock is provided through the handle profile.
4. Door closing assembly according to Claim 1 or 2, wherein said trigger tumbler has a hooked profile able to act on the bolt and cause it to withdraw into the carrier band.
5. Door closing assembly according to one of the preceeding claims, wherein said trigger tumbler is longitudinally movable past a keeper hole formed through a side face (16) of the handle profile and a keeper hole formed through a side face (11) of the carrier band which comes opposite.
6. Door closing assembly according to claim 4 wherein said trigger tumbler (22) shows a profile which opens or closes more or less the keeper hole of the handle profile as it moves.
7. Door closing assembly according to one of the preceding claims further comprising a riser profile (30) fitting under the carrier band (1) to compensate for out-of-plumb.

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