FR3080881A1 - LOCKING SYSTEM WITH MECHANICAL LOCKING - Google Patents

Abstract

The invention proposes a mechanical locking system in which two lock installation locations (A and B) are provided that are equally suitable for receiving driving means such as a key cylinder output pinion (P). 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). In a provision relating to axial symmetry, a distal rack (17, 27) of one of the bead plates (10, 20) and a proximal rack (26, 16) of the other (20, 10) enclose them said pinion (P) when in the corresponding lock slot (A, B).

Description

Modified text GV17-August 2018

MECHANICAL LOCKING CLOSURE SYSTEM

The invention lies in the field of locksmithing, with the objective of leading to a door closing system with mechanical locking control which is of the reversible type. The reversibility in question results in the freedom 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 he will assemble on site. By this very fact, the invention aims to reduce manufacturing costs and to facilitate the organization of mass production under optimal conditions of cost and deadlines. It does, however, lead to solid and reliable equipment making it possible to best meet the growing demand for armored security lock 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 for his customers can adapt to doors opening to the right to the left and / or to doors opening by pushing or pulling, from a single manufacturing. Of course, there is no question in doing so of reducing the quality of anti-intrusion protection. On the contrary, it will be seen later that the invention proposes solutions tending to improve it.

In a conventional manner per se, the system according to the invention comprises a lock mechanism operating by controlling deadbolts from a lock, in particular of the type of a key cylinder, by means of a linkage of transmission of movement to distant bolts, which is put into drive coupling with driving means available at the lock output, such as a cylinder output pinion.

It is also conventional that, in preferred embodiments, the system comprises a latch bolt. Advantageously, the invention provides a U-turn device consisting of a bolt-holder support in which the U-turn bolt is mounted to turn. This means that it can turn on itself to take two positions, one or the other of two diametrically opposite positions.

According to an essential characteristic of the invention, the system, generally integrated in a strip, provides two different locations in which a specific lock can be installed, with its driving means being placed indifferently in one or the other, all by positioning itself so as to be able to ensure the locking and unlocking commands via the linkage. The transmission is ensured by two sets of coupling members which are equally usable for putting the linkage in drive coupling with the driving means. They are coupled in a simultaneous operation, but only the one operating on the site where the driving means are located is active.

In its preferred embodiments, the system according to the invention has different characteristics which will be specified below. In most cases of application, the linkage comprises two rod plates, which are movable on themselves parallel to a longitudinal direction of the system and which each carry two racks, in a provision relating to 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 rod plates and a proximal rack of the other, which enclose between they said pinion when it is in the corresponding lock location.

According to another advantageous characteristic of the invention, the linkage in question comprises two rod bars, which extend longitudinally opposite one another from a middle part of the system in which the one and the other of the lock locations and which support rockers individually associated with the different deadbolts to deploy them in the locked position or retract them in the unlocked position.

In the preferred embodiments of the invention, the linkage comprises two rods, which are slidably mounted one on the other in said middle part of the system, thereby forming said two rod plates respectively, and which each extend respectively on either side by forming said rod bars.

Furthermore, it can advantageously be provided that said rod plates are arranged superimposed and that they are pierced with lights ensuring their guidance on fixed balusters along their longitudinal travel.

According to a secondary characteristic of the invention, the system comprises a half-turn device disposed in a central zone of the assembly between the two lock installation locations. Such a half-turn device advantageously comprises a bevelled half-turn bolt mounted to turn over on a bolt support itself mounted movable transversely to the system between a position for withdrawing the half-turn bolt towards which it is brought back under the control of a follower acting against a spring which biases it in the exit position of the latch bolt.

In this case, to allow the half-turn bolt to be turned over, provision is preferably made for it to be brought into a position where it is free to rotate in the bolt-holder support, by pulling beyond its position extended to the against a spring effect which brings it back to a normal position where it is fixedly fixed in the bolt holder support.

According to other preferential characteristics of the system according to the invention in connection with such a U-turn device, it is in particular possible to configure the bolt holder support and the linkage so that the linkage locks the bolt holder support in its position bolt extended when the deadbolts are locked, and / or configure the bolt-holder support of the half-turn device so that it is forced by the linkage to its retracted bolt position at the end of the deadbolts unlocking.

In a system according to the invention involving a linkage with two rod plates as indicated above, said plates can advantageously have plates coming together in abutment on a prominent tab of the bolt support of the device in a U-turn when the plates rod take the deployment position of the deadbolts in locking mode, the U-bolt being thus locked in locking mode like the deadbolts.

Said rod plates can also have respective protrusions in the form of wedges coming into play at the end of the displacement of the rod plates in unlocking the deadbolts in order to progressively tighten the stops of the bolt-holder support of the device by half-turn thus forcing it into the retracted bolt position.

For this purpose, one can in particular have recourse to arrangements according to which the device with half-turn comprises a part of manual control of the bolt half-turn forming two symmetrical cams clean to come to bear on the back of one or I other of two protruding rear legs of the bolt support, by rotation of the nut in one or the other of two opposite directions, so that the latch bolt retracts against a spring effect requesting the bolt holder support in the bolt out position.

Preferably, it is on the edge of these rear legs of the bolt-carrying support that stops are made forcing the workpiece-holder support in the retracted bolt position when the linkage ensures the unlocking of the deadbolts.

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

Figure 1 shows the essential parts of the safety closure assembly, in an exploded view;

2 shows a part 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 locked position;

Figure 3 is the counterpart of Figure 2 in the arrangement where the deadbolts are retracted, only the latch bolt is still out, but not locked;

Figure 4 shows, still in top view, the central part of the strip in the arrangement where the latch bolt is retracted, forced back into the final door open position;

Figure 5 is a partial perspective view which, better than 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 extended position;

Figure 6 is a similar partial perspective view but for the configuration of Figure 3, where all the bolts are unlocked, including the latch bolt in terms of its deadbolt function;

Figure 7 shows the same elements in the configuration where the latch bolt is itself retracted, as in Figure 4;

Figure 8 illustrates the latch bolt in its turning capacity;

Figure 10 is a perspective view specially showing the bolt holder support of the U-turn device;

And FIG. 11 illustrates in an exploded view an intermediate device which, optionally, completes the system.

The particular embodiment of the system according to the invention described here is particularly developed in its overall structure and in the design of each of its elements as well as their configuration in cooperating operation. Its design aims especially at a great solidity and a great convenience of use at the same time as at the variability of its applications while respecting the requirements of safety closings.

It is recalled that this is a mechanical locking mechanism system which is delivered in a unique model to the installer locksmith, who, on site, will have to install the lock in one of the two locations available for this, according to whether it is in front of a door opening to the right or a door opening to the left.

In the embodiment described, which includes a half-turn device, it will also have the possibility of turning the spring bolt, so that the same system can be installed on an opening door by pushing or on an opening door. pulling.

As this is a multi-point lock mechanism comprising lateral deadbolts plus end bolts at the top and bottom, it can also 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 FIG. 1. They are represented in a limited part of the assembly, in a central part M where the two lock locations designated A and B are located. These locations are housed in a box called a strip which contains the central mechanism as well as the linkage which runs along the strip to distribute all the deadbolts. At the end of installation, the strip D is closed by a cover which has not been shown.

From the lock we only mentioned the cylinder output pinion, in Pa for location A, in Pb for location B, and on the other hand a cylinder guard 4, which is here mounted to receive the lock cylinder when this is located in location A. While when the lock is in place, the pinion is located inside the strip, the cylinder guard is attached to the back of the strip to pass through the door fitted with the system.

Figure 1 shows two rods designated T1 and T2. As they slide one on the other in the middle part M of the system, they are considered as a lower rod T1 and an upper rod T2, referring to the arrangement used in the drawing, which assumes the strip placed horizontally.

In the middle part of the system, the two rods are superimposed I one on the other, at the level of the so-called rod plates 10 and 20. From there they develop in opposite directions, the rod T1 towards the right beyond Figure 1, the rod T2 to the left of the figure beyond. As shown in FIGS. 2 and 3, the two rods T1 and T2 thus constitute, on either side of the plates 10 and 20, respectively two rod bars, referenced 13 and 23 respectively, which symmetrically control the deployment or removal of deadbolts. Among these, we see appear in Figures 2 and 3 side bolts 14 and 24 and an end bolt 15, at the end of the lower rod T1, to the left of the figures.

The half-turn device is shown in C. In the system, it is placed in the central zone, in the middle between the two lock locations. It will be described later. We will point here however the presence of a follower 33, in which will adapt the rod of a crutch or a button used manually to open or close the door when it is not locked by deadbolts, the presence also of the latch bolt 31 which is itself mounted in a latch holder support 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 main part of the linkage which transmits to the bolts the commands received from the lock when they are put into drive coupling with the drive means of the lock, namely here the pinion P. themselves well known, involving rocker arms, such as 16 (figure

3) provide the link between the rod bars and the bolts.

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

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

In operation the four racks move with the rods which carry them, but only are active in cooperation with the pinion P, either the racks 26 and 17 when the key cylinder is in (location A (position Pa), or the racks 16 and 27 when the cylinder is in location B (pinion in position Pb), in each case it is 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 stroke of the rods between the deployed bolt configurations (locked lock) and retracted bolts (unlocked lock ). To this end, in parallel to the racks, the rod plates are pierced with openings 24 in which sliding balusters which are fixed, integral with the strip. These balusters are tapped to receive the screws or bolts by which the cover enclosing the mechanism is fixed. One of these columns appears clearly at 6 in FIG. 8.

The perspective view of FIG. 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 is seen there how the cylinder 6 is fixed and securely held in the strip D. To this end, a stud 63 is provided which is screwed at two points on the outer sheath of the cylinder, spanning the output pinion of the cylinder. This stud 63 is held laterally by a threaded tie rod 64 which screws into it from the front face of the strip. The location B being unoccupied, FIG. 8 reveals the shape of the hole corresponding to the bottom of the strip, suitable for allowing a bayonet fixing of the cylinder guard 4. In FIG. 9, we can see a deadbolt 46, assumed to be in retracted position.

The half-turn device is best visible in Figures 8 and 10, for Figure 10 regardless of its operation in conjunction with the follower on the one hand, with the linkage on the other hand, being recalled that in the particular case describes the latch bolt also becomes a deadbolt when the lock is in the locked closed position.

It essentially consists of a bolt holder support 32 in which the latch bolt 31 is mounted to turn over. By this is meant that it can be rotated on itself between two determined diametrically opposite positions, where its bevelled face is directed towards the rear face or towards the front face of the strip. In Figure 9, it is shown in an intermediate position, being turned. This reversal is ensured by the locksmith who installs the mechanism on a specific door. After installation, normal locking and unlocking operation is ensured on the latch bolt, while the latch bolt remains integral with it.

The bolt holder support is made from a base plate 34, mounted movable transversely to the strip. It is guided in its movements by sliding on fixed studs of the strip 34, along two slots 36 formed through the plate. This base plate forms right angle returns which are 4 in total.

Two of these returns are formed in the axis of the base plate between the two openings 36, one 37 at the end on the bolt side, against the side face of the strip, the other 38 more towards the center. In normal position the tail of the latch bolt passes through them both. The connection blocking the bolt in a fixed position in its bolt-holder support is produced by a clipping ring adjusted so as not to withstand a pulling force on the bolt outside the strip sufficient to overcome the effect of a tensioning spring to bring it back to its normal position. When the latch bolt is thus pulled beyond its extended position it becomes temporarily free to rotate, which allows it to be turned over. The spring in question has not been shown in the figures; it is a compression spring based on the front return 37 and in a groove in the bolt tail. To fix either of the two active positions of the bolt, the bolt tail has at the base of the bolt proper a shoulder with two flats which engage in a shape complementary to the receiving hole drilled in the front return 37 .

At the end of the bolt support 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 prominent tabs 41 and 42 which are placed on either side. 'other of the follower 33. Their role is related to the latter, in the context of the usual operation of this type of device, which requires being able to use the follower to bring the latch bolt back to the withdrawal position against 'a spring which biases it in the exit position of the latch bolt.

Indeed, as will be better understood from Figure 8, the follower 33 rotates with it a generally triangular part 39, or manual control part of the latch bolt. This part laterally forms two symmetrical cams (such as 48 in FIG. 8) which, during the rotation of the follower, come one or the other to bear 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, we can retract the latch bolt against a spring effect urging the bolt holder support in the bolt out position. In practice, it is thus ensured that the same half-turn device is used in connection with the key cylinder regardless of the location A or B in which it is installed.

We will now come back to the design of the system which leads to a cooperative operation between the linkage and the half-turn device allowing on the one hand the latch bolt to also play the role of deadbolt during the deployment of the bolts in locking mode, and allowing on the other hand the key cylinder to be usable in order to withdraw the latch bolt at the end of the withdrawal of the deadbolts.

The configuration of the various elements involved in this operation is shown in 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 even during '' a forced withdrawal control of the latch bolt (Figures 4 and 7). The lugs of the bolt holder support 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 a rack.

Thus, in particular, the bolt holder support of the half-turn device and the linkage are configured such that the linkage blocks the bolt holder support turn around in its bolt position when the deadbolts are locked. To this end, the two rod plates 10 and 20 have dishes such as 44 which in the configuration of FIGS. 2 and 5 come together into abutment on a protruding lug of the latch support. This is here constituted by the return 38 which supports the latch bolt. The rods T1 and T2 are in the deployment position of the deadbolts in locking mode. The latch bolt is itself locked in locking like the deadbolts.

Conversely when the lock is in the unlocked configuration as in FIGS. 5 and 6, the bolt holder is free to slide towards the retracted bolt position because the same lug 38 is at a hook 45 as the two rod plates 10 and 20 present for this purpose.

From this configuration of unlocking the deadbolts, the withdrawal of the bolt is possible under forced action of the key controlling the unlocking by acting through the rods to move the bolt holder support 32 to its retracted bolt position . For this, the rod plates 10 and 20 have respective protrusions in the form of wedges, 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, moving closer to one another, to progressively tighten between them stops of the bolt-holder support of the device in a U-turn. In the embodiment described, these stops are provided on the edge of the rear legs 41 and 42 of the bolt support, as can be seen at 45 in FIG. 6.

Incidentally, in the variant which has been described here, the system according to the invention is completed by a crank device which is shown in exploded form in FIG. 11. Its particularity is to include two crank bolts 51 and 52, arranged symmetrically in the middle part of the system, on either side of the U-turn device C. They are designed to operate in cooperation with levers of which they cause tilting by rotation in opposite directions. A cover 53 screwed onto the latch bolts 5 keeps them integral during their transverse sliding movement through the front face of the strip where they are guided by rings such as 54 in FIG. 10.

REVEN DIC ATIONS

Claims (14)

1. Locking system with mechanical locking comprising a lock mechanism operating by controlling deadbolts from a lock by means of a linkage coupled to drive with driving means (P) available at the outlet of the lock, characterized in that it comprises two lock installation locations (A and B) which can be used either for receiving said driving means (P), as well as two sets of coupling members which can be used for fitting said linkage (T1-T2) in drive coupling with said driving means and which are coupled in a configuration such that a first of said sets (17-26) occurs 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 e is installed in a second (B) of said locations. 2. System according to claim 1, in which said lock is of the key cylinder type comprising a pinion (P) which constitutes an outlet member of said driving 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 an arrangement relating to axial symmetry such that said coupling members of the linkage comprise, in each set, a distal rack (17, 27 ) of one (10, 20) of the rod plates and a proximal rack (26, 16) of the other (20, 10) which enclose between them said pinion (P) when it is in the location of corresponding lock (A, B). 3. System according to claim 1 or 2, characterized in that said linkage comprises two rod bars (13, 23), which extend longitudinally opposite one another from a middle part (M) of the system in which are located one and the other of said lock locations (A, B) and which support rockers (26) individually associated with the different deadbolts (14, 24) to deploy them in the position of lock or retract them to the unlocked position. 4. System according to claims 2 and 3 combined together, characterized in that said linkage comprises two rods (T1, T2) which are slidably mounted one on the other in said middle part of the system (M), forming there respectively said two rod plates (10, 20) and which each extend respectively on either side by forming said rod bars (13, 23). 5. System according to claim 2 or 4, characterized in that said rod plates (10, 20) are arranged superimposed and in that they are pierced with lights (24) for guiding on fixed balusters (5) along of their longitudinal travel. 6. System according to any one of the preceding claims, characterized in that in a central zone between said lock installation locations (A, B), it comprises a half-turn device (C) comprising a half bolt beveled turn (31) turned upside down on a bolt support (32) itself mounted movable transversely to the system between a withdrawal position of the latch bolt towards which it is brought back under the command of a follower (33) acting at against a spring which biases it in the exit position of the latch bolt. 7. System according to claim 6, characterized in that to allow its reversal, the latch bolt (31) can be brought into a position where it is free to rotate in the bolt holder support (32) by traction au- beyond its extended position against a spring effect which returns it to a normal position where it is fixedly fixed in the bolt holder support. 8. System according to claim 6 or 7, characterized in that the bolt support (32) of the half-turn device (C) and said linkage are configured so that said linkage (T1-T2) blocks said support bolt holder (32) in its bolt out position when the deadbolts are locked. 9. System according to claim 6, 7, or 8, characterized in that the bolt support of the half-turn device (C) is configured to be forced by said linkage (T1-T2) to its position of bolt retracted at the end of the deadbolts unlocking. 10. The system of claim 8 or 9 wherein the linkage comprises two rod plates (10 and 20) according to claim 4, characterized in that said plates have plates (44) which come together into abutment on a prominent tab (38) of the bolt holder support when the rod plates take up the deployment position of the deadbolts in locking mode, the latch bolt thus being locked in locking mode like the deadbolts. 11. The system of claim 8 or 9, wherein the linkage comprises two rod plates (10 and 20) according to claim 4, characterized in that said plates have respective wedge-shaped protrusions (19, 29) which come into play at the end of the displacement of the rod plates in unlocking the deadbolts to progressively tighten between them stops (43) of the bolt-holder support 5 of the device by half-turn thereby forcing it into the retracted bolt position. 12. System according to claim 11, characterized in that said half-turn device (C) comprises a part (39) for manual control of the half-turn latch forming two symmetrical io cams (48) which come to bear on the back of one or the other of two protruding rear legs (41, 42) of the bolt holder support (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 holder support (32) in the bolt out position. 13. The system of claim 12 characterized in that said stops are formed on the edge of said rear legs of the bolt holder support. 14. System according to any one of the preceding claims ²⁰ characterized in that it comprises a device to control open two bolts to open device.