EP3564467A1 - Closing system by mechanical locking - Google Patents

Abstract

The invention proposes a mechanical locking system in which there are provided two lock installation locations (A and B) which are indifferently usable in receiving driving means, such as a pinion (P) of a key cylinder output. , for use in controlling deadbolts via a linkage. In a preferred embodiment, the linkage comprises two rods (T1, T2) which are superposed at the level of bead plates (10, 20) in which are provided racks forming coupling members with said driving means (P). A latch bolt device (C) is disposed in a central area between the two lock locations out of the racks. It comprises a beveled latch bolt (31) pivotally mounted on a bolt holder (32) itself mounted transversely to the system between a retracted position and an output position of the latch bolt. The bolt carrier (32) and the linkage are configured such that the linkage (T1-T2) blocks the bolt carrier (32) in its bolt position released when locking the deadbolts.

Description

The invention lies in the field of locksmithing, with the objective of leading to a locking mechanism mechanical locking door system that is reversible type. The reversibility in question results in the freedom that is given to the locksmith to configure the system, at the time of its installation, to adapt it to each particular situation from the same set of elements that it will assemble on site. By the same token the invention aims to reduce manufacturing costs and facilitate the organization of mass production in optimal conditions of cost and time. It does, however, lead to robust and reliable hardware to best meet the growing demand for security-locked security doors protecting habitats from intrusions and burglaries.

The present invention is embodied in a so-called reversible security closure system, which the craftsman having to install secure doors at its customers can adapt to doors opening to the right and / or to doors opening in pushing or pulling, from a single fabrication. Of course, there is no question in this way of reducing the quality of the intruder protection. On the contrary, it will be seen later that the invention proposes solutions tending to improve it.

In a conventional manner, the system according to the invention comprises a lock mechanism operating in control of deadbolts from a lock, in particular of the type of a key cylinder, via a linkage motion transmission to the remote bolts, which is coupled drive with driving means available at the output of the lock, such as a cylinder output gear.

To allow reversibility, the system, usually integrated in a headband, household two different locations in which we can install a determined lock, with his coaching means being placed indifferently in one or the other, while positioning in order to be able to ensure the locking and unlocking commands via the linkage. The transmission is provided by two sets of coupling members that are indifferently usable to put the linkage in drive coupling with the coaching means. They are coupled in a simultaneous operation, but only one is active who operates on the location where are the means coaches.

The prior art in this area is illustrated in particular by the patent documents EP 1,900,894 , US 2019/267358 , DE 10 26 57788 .

The invention proposes to complete the system by a device with a latch bolt, which is constituted as defined by claim 1, with the objective of being able to operate a latch bolt in synchronism with the deadbolts.

The latch bolt is mounted to overturn in a bolt carrier itself mounted movable transversely to the system. By this is meant that it can turn on itself to take two positions one or the other of two diametrically opposite positions. It is further configured, in connection with the control linkage of deadbolts, so that the rod blocks the bolt holder in its bolt position released when locking the deadbolts. According to secondary features of the invention, bolt carrier and linkage are further configured so that the bolt carrier is forced by the linkage to its latched bolt position at the end of unlocking the deadbolts

In its preferred embodiments, the system according to the invention has different characteristics which will be specified hereinafter. In most cases of application, the linkage has two rod plates, which are movable on themselves parallel to a longitudinal direction of the system and which each carry two racks, in a relative arrangement with axial symmetry. Advantageously, the coupling members of the linkage with the driving means, in particular a cylinder output pinion, comprise, in each set, a distal rack of one of the bead plates and a proximal rack of the other, which enclose between they said pinion when it is in the corresponding lock location. The half-turn device can then be mounted preferably between the two lock installation locations in a central area of the system which is below the racks.

• La figure 1 représente les pièces essentielles de l'ensemble de fermeture de sécurité, dans une vue en éclaté ;
• La figure 2 représente une partie de la longueur du bandeau en vue de dessus, le bandeau étant ouvert et l'ensemble étant dans la disposition où tous les pênes sont déployés en position de verrouillage ;
• La figure 3 est l'homologue de la figure 2 dans la disposition où les pênes dormants sont rétractés, seul le pêne demi-tour étant encore sorti, mais non verrouillé ;
• La figure 4 montre, toujours en vue de dessus, la partie centrale du bandeau dans la disposition où le pêne demi-tour est rétracté, rentré à force en position finale d'ouverture de porte ;
• La figure 5 est une vue en perspective partielle qui, mieux que la figure 2, montre les éléments du système dans la configuration où tous les pênes sont verrouillés, le pêne demi-tour lui-même étant bloqué en position sortie ;
• La figure 6 est une vue en perspective partielle similaire mais pour la configuration de la figure 3, où tous les pênes sont déverrouillés, y compris le pêne demi-tour pour ce qui est de sa fonction de pêne dormant ;
• La figure 7 représente les mêmes éléments dans la configuration où le pêne demi-tour est lui-même rétracté, comme sur la figure 4 ;
• La figure 8 illustre le pêne demi-tour dans sa capacité de retournement ;
• La figure 10 est une vue en perspective montrant spécialement le support porte-pêne du dispositif de demi-tour ;

The invention is illustrated below by the description of a system according to the invention in a concrete embodiment which groups the main characteristics. Of course, the embodiment described is in no way limiting the many forms of application that can take the invention while remaining within the scope of the claims. It is detailed with reference to Figures 1 to 11 drawings, in which:

• The figure 1 represents the essential parts of the safety closure assembly, in an exploded view;
• The figure 2 is a portion of the length of the strip in top view, the strip being open and the assembly being in the arrangement where all the bolts are deployed in the locking position;
• The figure 3 is the counterpart of the figure 2 in the arrangement where the dead bolts are retracted, only the latch bolt still being out, but not locked;
• The figure 4 shows, always in top view, the central portion of the strip in the disposition where the latch bolt is retracted, forcibly returned to the final position of door opening;
• The figure 5 is a partial perspective view that better than the figure 2 , shows the elements of the system in the configuration where all the bolts are locked, the latch bolt itself being locked in the out position;
• The figure 6 is a similar partial perspective view but for the configuration of the figure 3 , where all bolts are unlocked, including the latch bolt for its deadbolt function;
• The figure 7 represents the same elements in the configuration where the latch bolt is itself retracted, as on the figure 4 ;
• The figure 8 illustrates the latch bolt in its turning ability;
• The figure 10 is a perspective view specifically showing the bolt carrier of the U-turn device;

And the figure 11 illustrates in an exploded view a gap device which, optionally, completes the system.

The particular embodiment of the system according to the invention described here is particularly elaborated in its overall structure and in the design of each of its elements as well as their configuration in cooperating operation. Its design is designed specifically for great strength and ease of use as well as the variability of its applications while respecting the requirements of safety closures.

It is recalled that this is a system with mechanical locking mechanism that is delivered as a unique model to the installer locksmith, who, on the spot, will have to install the lock at one of the two locations available for this, following that he is in front of a door opening on the right or a door opening on the left.

In the embodiment described, which comprises a device with a half turn, it will have in addition to a possibility of reversal of the spring bolt, so that the same system can be installed on a door opening by pushing or on a door opening pulling.

As a multipoint lock mechanism with side deadbolts plus end bolts at the top and bottom, it can further adapt the system to any door height. On this last point the structure and its mode of use are in themselves known.

The essential elements of the system emerge from the exploded view of the figure 1 . They are represented in a limited part of the assembly, in a median part M where are located the two lock locations designated respectively A and B. These locations are formed in a housing called strip which contains the central mechanism and the linkage which runs along the headband to distribute all deadbolts. At the end of installation, the strip D is closed by a cover that has not been shown.

From the lock it was only mentioned the output gear of the cylinder, Pa for location A, Pb for location B, and secondly a cylinder guard 4, which is here mounted to receive the cylinder of when the lock is in place the pinion is located inside the headband, the cylinder guard is fixed to the back of the headband to cross the door equipped of the system.

The figure 1 shows two rods designated T1 and T2. As they slide one over the other in the middle part M of the system, they are considered as a lower bead T1 and an upper bead T2, referring to the arrangement used in the drawing, which assumes the headband laid horizontally.

In the middle part of the system, the two rods are superimposed on one another, at what are called the rod plates 10 and 20. From there they develop in opposite directions, the rod T1 to the right beyond the figure 1 , the rod T2 to the left of the figure beyond. As we have shown on the Figures 2 and 3 , the two rods T1 and T2 thus constitute, from and other plates 10 and 20, respectively two rod bars, referenced 13 and 23 respectively, which symmetrically control the deployment or withdrawal of deadbolts. Among these, we can see on the Figures 2 and 3 lateral bolts 14 and 24 and an end bolt 15 at the end of the lower bead T1, to the left of the figures.

The half-turn device is shown in C. In the system it is located in the central zone, in the middle between the two lock locations. It will be described later. However, it will be pointed out here the presence of a follower 33, in which will come to adapt the stem of a crutch or button used manually to open or close the door when it is not locked by the deadbolts, the also presence of the latch bolt 31 which is itself mounted in a bolt holder 31 in the center of the system, between the two locations A and B receiving in turn the key lock cylinder.

The rods T1 and T2 together constitute the bulk of the linkage which transmits to the bolts the controls received from the lock when they are coupled with the driving means of the lock, namely here the pinion P. The means themselves well known, involving rockers, such as figure 3 ) provide the connection between the rod bars and the bolts.

The two bead plates 10 and 20 form racks as coupling members with the pinion in place P ( Figures 2, 3, 4 ), in a configuration such that a first set of racks is active in driving coupling with the pinion when the lock is installed in the lock slot A, while another set is active in drive when the lock is in slot B. The racks are parallel to each other, all oriented in the longitudinal direction of the system. In each game the two racks enclose the pinion. To move in Opposition they are arranged one on a rod, the other on the other rod.

To do this, each bead wire, more exactly each bead plate 10 or 20, has an enlarged distal portion 11 or 21 respectively ( figure 1 ) and a narrowed proximal portion 12 or 22 respectively. In each one is provided a rack whose teeth are oriented towards the axis of the system, towards the inside of the headband. Between each distal portion and the rod bar on each bead wire, the proximal portions 11 and 21 are along the front face of the headband. The corresponding racks 16 and 26 are then formed on their rear edge. In the distal portions of the two rod plates, the racks 17 and 27 respectively are notched in the direction of the front face of the strip, on the inner edge of a window formed in length over a width sufficient for the lock pinion P finds there place without difficulty.

In operation the four racks move with the rods that carry them, but only are active in cooperation with the pinion P, or the racks 26 and 17 when the key cylinder is in the slot A (Pa position) or the racks 16 and 27 when the cylinder is in the slot B (pinion in position Pb). It is in each of the proximal rack of one of the rods with the distal rack of the other rod.

The positioning of the two rod plates one above the other is adjusted to the width of the pinion by a common guide continued throughout the race of the rods between deployed bolt configurations (lock locked) and retracted bolts ( lock unlocked). For this purpose, parallel to the racks the bead plates are pierced with lights 24 in which slide columns which are fixed, integral with the strip. These columns are tapped to receive the screws or bolts by which the hood enclosing the mechanism is fixed. One of these balusters appears clearly in 6 on the figure 8 .

The perspective view of the figure 9 shows a key lock cylinder 6 once installed in the corresponding location (here A) until it is housed in the cylinder guard 4. It shows how the cylinder 6 is fixed and firmly held in the band D. A this end, there is provided a stud 63 which is screwed at two points on the outer sleeve of the cylinder, stepping over the output gear of the cylinder. This pad 63 is held laterally by a threaded tie 64 which screws into it from the front face of the strip. Location B being unoccupied, the figure 8 reveals the shape of the hole corresponding to the bottom of the strip, suitable for allowing a bayonet attachment of the cylinder guard 4. On the figure 9 , we can see a dead bolt 46, assumed in the retracted position.

The half-turn device is at best visible on the figures 8 and 10 , for the figure 10 independently of its operation in connection with the follower on the one hand, with the linkage on the other hand, being reminded that in the particular case described the latch bolt is also dead bolt when the lock is locked locked position.

It is essentially constituted by a bolt holder 32 in which the latch bolt 31 is mounted flipping. By this is meant that it can be rotated on itself between two diametrically opposed positions determined, where its beveled face is directed towards the rear face or to the front face of the strip. On the figure 9 it is represented in an intermediate position, being turned over. This reversal is provided by the locksmith who installs the mechanism on a specific door. After installation, the normal locking and unlocking operation is ensured on the bolt holder while the latch bolt remains in solidarity.

The bolt holder is made from a base plate 34 mounted movably transverse to the strip. It is guided in its displacements by sliding on fixed studs of the strip 34, along two lights 36 formed through the plate. This base plate forms returns at right angles which are in total 4 in number.

Two of these returns are formed in the axis of the base plate between the two slots 36, one 37 at the end bolt side, against the side face of the strip, the other 38 more towards the center. In the normal position the tail of the latch bolt passes through both. The connection blocking the bolt in a fixed position in its bolt holder is carried by a snap ring set so as not to withstand a pulling force of the bolt out of the strip sufficient to overcome the effect of a spring that tends to bring it back to its normal position. When the latch bolt is thus pulled beyond its exit position it becomes temporarily free in rotation, which allows its reversal. The spring in question has not been shown in the figures; it is a compression spring based on the return before 37 and in a groove in the bolt tail. To fix one and the other of the two active positions of the bolt, the bolt tail has at the base of the bolt itself a shoulder with two flats which engage in a complementary shape of the receiving hole pierced in the front return 37 .

At the end of the bolt holder on the side of the rear face of the strip, the two other returns perpendicular to the base plate 34 constitute at the rear of the bolt holder two protruding tabs 41 and 42 which are placed on the side and side. The other part of the follower 33. Their role is related to the latter, as part of the usual operation of this type of device, which requires the use of the follower to bring the latch bolt back to the retracted position against the latch. a spring which urges it into the output position of the latch bolt.

Indeed, as we will better understand the figure 8 , the follower 33 rotates with it a generally triangular piece 39, or manual control part of the latch bolt. This piece laterally forms two symmetrical cams (such as figure 8 ) which, during the rotation of the follower, come one or the other support on the back of one or the other of the two legs 41 and 42, depending on whether the rotation of the follower is exerted in one direction or the other. Whatever the direction of rotation, it is thus possible to retract the latch bolt against a spring effect urging the bolt holder in position bolt out. In practice, it is thus ensured that the same half-turn device serves in conjunction with the key cylinder regardless of the location A or B in which it is installed.

We will come back now to the design of the system which leads to a functioning cooperating between the linkage and the half-turn device allowing on the one hand the latch bolt also play the role of dead bolt during the deployment of bolts lock, and on the other hand allowing the key cylinder to be used as withdrawal control of the latch bolt at the end of the withdrawal of the deadbolts.

The configuration of the various elements involved in this operation is apparent from the Figures 2 to 7 , as well as the relative positions they take in a stable locking situation ( figures 2 and 5 ) or unlocking ( figures 3 and 6 ), or during a command to withdraw the latch bolt ( figures 4 and 7 ). The tabs of the bolt holder play a decisive role in connection with the contour given to the rod plates 10 and 20 in their central zone which does not carry rack.

Thus, in particular, the bolt carrier of the half-turn device and the linkage are configured so that the linkage blocks the latch bolt holder in its bolt position that is released when locking the dead bolts. For this purpose, the two bead plates 10 and 20 have dishes such as 44 which in the configuration of the figures 2 and 5 come together in abutment on a prominent lug of the bolt holder. This is here constituted by the return 38 which supports the latch bolt. The rods T1 and T2 are in the position of deployment of the deadbolts in locking. The latch bolt is itself locked in lock as the deadbolts.

Conversely when the lock is in unlocked configuration as on the figure 5 and 6 , the bolt carrier is free to slide to the retracted bolt position because the same tab 38 is at a drop 45 that the two rod plates 10 and 20 have for this purpose.

From this configuration of unlocking the deadbolts, the removal of the bolt is possible under forced action of the key controlling the unlocking by acting through the rods to move the bolt holder 32 to its retracted bolt position . For this, the rod plates 10 and 20 have respective corner-shaped protrusions 19 and 29 respectively which come into play at the end of the movement of the rod plates in unlocking the deadbolts. They then act in concert, approaching one another, to gradually tighten between them stops the bolt holder support of the device to turn around. In the embodiment described, these stops are formed on the edge of the rear legs 41 and 42 of the bolt holder, as can be seen in 45 on the figure 6 .

Incidentally, in the variant which has been described here, the system according to the invention is completed by a gap device which is shown exploded on the figure 11 . Its peculiarity is to include two latch bolts 51 and 52, arranged symmetrically in the median part of the system, on either side of the half-turn device C. They are designed to operate in cooperation with levers which they cause. tilting by rotation in opposite directions. A cover 53 screwed on the latch bolts holds them solid during their displacement in transverse sliding through the front face of the strip where they are guided by rings 54 on the figure 10 .

Claims (15)

Mechanical locking system
comprising a lock mechanism operating in control of deadbolts from a lock via a linkage coupled with drive means (P) available at the output of the lock,
in which there are provided two lock installation locations (A and B) indifferently usable in reception of said driving means (P), as well as two sets of coupling members which are indifferently usable to put said linkage (T1-T2) in drive coupling with said driving means,
said sets of coupling members being coupled in a configuration such that a first of said sets (17-26) is in a coupling situation with said driving means (P) when the lock is installed in a first (A) of said locations , while a second of said sets (16-27) is in a coupling situation with said driving means when the lock is installed in a second (B) of said locations,
characterized in that there is further provided a half-turn device (C) having a bevelled latch bolt (31) mounted to overturn on a bolt carrier (32) itself mounted transversely to the system between a withdrawal position of the latch bolt and an output position of the latch bolt.
and in that the bolt carrier (32) of the half-turn device (C) and said linkage are configured such that said linkage (T1-T2) blocks said bolt carrier (32) in its position of dead bolt when locking dead bolts. The system of claim 1, wherein the latch bolt holder (C) is configured to be forced by said linkage (T1-T2) to its retracted bolt position at the end of unlocking deadbolts . System according to claim 1 or 2, comprising a follower (33) for controlling said bolt holder (32) to return it to its position of withdrawal of the latch bolt against a spring which urges it into position exit from the latch bolt. System according to one of Claims 1 to 3, characterized in that, to enable it to be turned around, the latch bolt (31) can be brought into a position where it is free to rotate in the bolt holder (32), by pulling beyond its extended position against a spring effect which returns it to a normal position where it is locked fixed in the bolt holder. System according to one of claims 1 to 4, wherein said lock is of the key cylinder type comprising a pinion (P) which constitutes an output member of said drive means, characterized in that said linkage comprises two rod plates ( 10, 20) which are movable on themselves parallel to a longitudinal direction of the system and which each carry two racks in a relative axial symmetry arrangement such that said coupling members of the linkage comprise, in each set, a distal rack ( 17, 27) of one (10, 20) of the bead plates and a proximal rack (26, 16) of the other (20, 10), which enclose said pinion (P) when it is in the corresponding lock location (A, B). System according to claim 5, characterized in that said linkage comprises two rod bars (13, 23), which extend longitudinally opposite each other from a median portion (M) of the system in which are located one and the other of said lock locations (A, B) and which support rocker arms (26) individually associated with the various deadbolts (14, 24) to deploy them in the locking position or retract in the unlocked position. System according to claims 5 and 6 combined together, characterized in that said linkage comprises two rods (T1, T2) which are slidably mounted one on the other in said median part of the system (M), forming there respectively said two plates of rods (10, 20), and which each extend respectively on either side forming said rod bars (13, 23). System according to Claim 5, 6 or 7, characterized in that the said bead plates (10, 20) are arranged superimposed and in that they are pierced with guide slots (24) on fixed posts (5) on along their longitudinal course. A system as claimed in any one of claims 5 to 8, characterized in that the half-turn device (C) is mounted between said lock installation locations (A, B) in a central area of the system where said bead plates (10, 20) do not form a rack. The system of claim 9, wherein said bead plates (10 and 20) have flats (44) which abut together on a protruding tab (38) of the bolt carrier when the bead plates take the position of deployment of the locking dead bolts, the latch bolt being locked in lock as the deadbolts. System according to claim 9, in said rod plates (10 and 20) have respective wedge-shaped protrusions (19, 29) which come into play at the end of the movement of the rod plates unlocking the deadbolts, to gradually tighten between them stops (43) of the bolt holder support of the half-turn device thus forcing it into the retracted bolt position. System according to claim 11, characterized in that said half-turn device (C) comprises a part (39) for manual control of the latch bolt by a follower (32), said part (39) forming two symmetrical cams ( 48) which bear against the back of one or the other of two protruding rear legs (41, 42) of the bolt holder (32) by rotation of the follower in one or the other of two opposite directions so as to retract the latch bolt (31) against a spring effect urging the bolt carrier (32) latch position released. System according to claim 12 characterized in that said stops are provided on the edge of said rear legs of the bolt holder. System according to Claim 11 in combination with Claim 12 or 13. System according to any one of the preceding claims, characterized in that it comprises a device for opening a door with two latch bolts.

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