Locking device with rod(s) for a multi-point lock, lock comprising such a device and mounting method

Abstract

The present invention relates to a rod device (20) for a lock (1) comprising: - a bolt (21) configured to lock and unlock a door (40), the bolt (21) comprising a through hole (213); - a cable (24) configured to pull the bolt (21), the cable (24) passing through the through hole (213) and comprising a stop (241) in contact with one end of the bolt (21); and - a return spring configured to release the bolt (21).

Description

FIELD OF INVENTION

[0001] The invention relates to the field of multi-point rod locks.

[0002] More specifically, the invention provides rod locking devices for multi-point locks, as well as locks incorporating such devices.

[0003] It also proposes a method for mounting such a device on an opening. STATE OF THE ART

[0004] In the state of the art, multi-point locks designed to be surface-mounted on openings are known, which include: A housing containing a latch and / or deadbolt lock mechanism, operated by a key / cylinder assembly or simply by a cremone bolt, and one or more auxiliary locking bolts, designed to be mounted at the top and / or bottom of the door or window and connected to this lock mechanism by a rod system. These auxiliary bolts and the rod system provide additional locking points beyond the main lock.

[0005] A first example of a flat rod lock in this sense was proposed by the Applicant in his application EP 2 407 619. In this example, the flat rod is in two parts and includes a device for adjusting the translation of a first bar of the rod along a second bar.

[0006] According to a second example proposed by the Applicant in document FR 2 929 978, the flat rod can also include variations in section, for example cylindrical portions, and has at its end a bolt attached to the rod.

[0007] Other locking devices still use tubular rods.

[0008] In all these examples, the rod is solid and rigid. It may also consist of several parts. Consequently, the rod can be difficult for a technician to handle or adjust quickly. Furthermore, if the rod is damaged, maintenance and replacement of parts can be complex, for example, in the case of a rod attached to a bolt at its end or to the rod's height adjustment mechanism.

[0009] We also know, notably from EP3650619A1 and FR1261587A, various mechanisms, particularly for window openings. DESCRIPTION OF THE INVENTION

[0010] It is desirable to have locking devices that are even less bulky, with a limited number of components, simplifying the number of operations required for their installation, adjustment, and maintenance on a door or window. To this end, the invention proposes a rod-based locking device for multi-point locks, comprising: a bolt support configured to be mounted on a door or window, near the top or bottom of the door or window, on the same side of the door or window as a lock case; a bolt intended to be mounted on the support, said bolt being movable in translation relative to the support and configured to lock and unlock said door or window, the bolt comprising an orifice through its length; a cable passing through the orifice of said bolt; a hooking device being connected to the end of the cable opposite the end which has a stop, said device being configured to allow the cable to be hooked onto an external actuating element of a drive mechanism of a lock case and to allow the tension of the cable to be adjusted; and a return spring intended to be mounted on the support to push the bolt back into a locked position.

[0011] Such a cable-based system is particularly simplified. It offers economic advantages both in terms of the number of parts and assembly time.

[0012] This device can be advantageously complemented by the following various features, taken individually or in combination: The latching device includes a fastening means adapted for projecting onto a rod guide, which is the actuating element to which it is attached; the latching device includes a threaded post and a nut; the bolt and the support comprise: One consists of a first and second stop, the other of a groove and a ring system mounted in the groove. the cable being configured to pull the bolt towards an unlocked position where the ring system is against one of the stops, the return spring being configured to push the bolt back towards a locked position where the ring system is against the other of the stops; the device further includes a cover mounted on the support, the cover including a fixing hole extending on one side of the cover only.

[0013] The invention also proposes a lock comprising a case and a rod device of the aforementioned type, the case being configured to be mounted on an opening and comprising a cylinder and a drive mechanism movable in translation relative to the case, the cable being connected to the drive mechanism, the cylinder being configured to drive said mechanism.

[0014] It may be provided that the housing is configured to be surface-mounted on a face of the opening.

[0015] The invention also proposes a method for mounting a lock with a rod locking device of the aforementioned type, the method comprising: mounting the bolt in the support; inserting the cable through the bolt opening; and attaching the end of the cable to the drive mechanism by the attachment device.

[0016] It may be envisaged that the bolt assembly in the support and the cable placement through the bolt hole are carried out at the time of installing the lock or beforehand, for example in an assembly center away from a place where the lock is installed.

[0017] The process may also include: mounting the bolt support on an opening.

[0018] The process may further include a step of adjusting the cable tension by pulling the cable and maintaining the desired tension by locking it onto the hooking device.

[0019] In particular, the locking can be achieved by a knot or by tightening a nut that is part of the fastening device. The method may also include placing a cover in a cover support that protrudes from one face of the housing. DESCRIPTION OF THE FIGURES

[0020] Other features, purposes, and advantages will become apparent from the following description, which is purely illustrative and not exhaustive, and should be read in conjunction with the attached drawings on which: there figure 1 illustrates a housing and a rod(s) device; the figure 2a and the figure 2b illustrate the lock of the figure 1 in the locked and unlocked position; the figure 3 is a perspective view illustrating a bolt; the figure 4 is an exploded view illustrating the bolt of the figure 3 ; there figure 5 is an exploded view of a rod(s) device; the figure 6 is a close-up exploded view of part of the rod(s) device of the figure 5 ; there figure 7a and the figure 7b are close-up views of a hanging device; the figure 8 is a perspective view illustrating part of a hood; and the figure 9 illustrates a method of implementing a method for mounting a lock and a rod locking device. DETAILED DESCRIPTION OF THE INVENTION

[0021] Lock 1 illustrated on the figure 1 is an assembly configured to lock or unlock an opening, for example a door 40. Said assembly is fixed on the surface of a face 41 of the door 40 and allows locking at several locking points.

[0022] It includes, for example: a housing 10 with a latch bolt 13 and a deadbolt 14 fixed on the face 41 of the door 40, such that the front edge 15 of said housing 10 is flush with a first section 42 in the height of the door 40 opposite a second section 43 which carries the hinges (not visible in the figures) of said door 40, a locking device with rod(s) 20 connected to a drive mechanism 12 which comprises said housing 10.

[0023] The drive mechanism 12 includes at least one external actuation element, for example a rod guide 121 as illustrated in figure 1. This mechanism can be driven by the action of a key 30 inserted into a cylinder 11 of the case 10. The rotation of the key 30 also causes the deadbolt 14 to extend into a locking position where it protrudes from the first slice 42 and the front edge 15 of the case 10 and is engaged in a supplementary strike plate (not visible in the figures).

[0024] The rod locking device includes one or more auxiliary locking bolts 21. Such an auxiliary locking bolt 21 is mounted movably to slide on a support 22, itself mounted on the surface at the top or bottom of the door, near the first section 42 of the door 40.

[0025] Support 22, for example, is a steel sheet, shaped into a stirrup (shape detailed later) by stamping.

[0026] It also carries a spring 23 configured to push the bolt 21 into a locking position where said bolt 21 is projecting from the first slice 42 (in the upper or lower part of the door 40, depending on the area on which its support 22 is mounted) of the door 40.

[0027] The rod locking device 20 further includes a cable 24 which is connected to the actuation means of the case and which allows the bolt 21 to be pulled into the unlocked position.

[0028] Cable 24, for example, is a small diameter metal cable (for example, less than 5mm) which gives it a certain flexibility and allows it to be more compact when stored before assembly.

[0029] With reference to figures 2a and 2bTurning the key 30 in the cylinder 11 of the housing 10 in the first direction to unlock the lock allows the deadbolt 14 to move and, via the rod guide 121 of the drive mechanism 12, exerts force on the cable 24 to pull the bolt 21 into its first retracted position. Once the deadbolt 14 and the bolt 21 are retracted, turning the key 30 in the same direction then retracts the latch bolt 13.

[0030] Turning the key 30 in the barrel 11 of the housing 10 in the opposite direction releases the force on the cable 24, which has the effect of partially relaxing the cable 24 and then the return spring 23. This pushes the bolt 21 to a locking position, for example in the strike plate of the door frame (not shown in the figures).

[0031] The bolt 21 is further traversed axially by an opening 213 extending from said bolt 21 at each of its ends. At its end intended to be furthest from the housing 10, the cable 24 includes a stop 241 designed, when the bolt 21 is mounted on the cable 24, to abut against an edge of the opening 213 of the bolt 21 at the corresponding end of said bolt 21. The stop 241 is, for example, a protrusion at one end of the cable 24, obtained by a knot or by a part fixed to the cable 24 which defines an edge having a radius greater than the radius of the opening 213.

[0032] During assembly, the cable 24 is threaded through the opening 213 of the bolt 21 until the stop 241 of the cable 24 is against the end of the bolt 21.

[0033] As illustrated in figures 3 And 4 , the mounting of support 22 on door 40 is done for example by screwing (screw 221).

[0034] The support 22 is in the form of a stirrup which includes a base 224, as well as: two retaining flanges 225, 226 between which the bolt 21 and the spring 23 extend, and two lateral flanges 227, 228 configured to house a fastening means, for example a stop screw.

[0035] The base 224 of the support 22 further carries two projecting stops 222 and 223 facing each other. The bolt 21 includes a groove 211 receiving a ring system 212 extending beyond the bolt 21, for example a circlip or an omega spring. The ring system 212 is configured to abut against the first and second stops 222, 223 in order to limit the travel of the bolt 21. Specifically, the bolt 21 is free to move translationally within the support 22, with the cable 24 pulling the bolt 21 towards the second stop 223 and the return spring releasing the bolt 21 towards the first stop 222. Thus, when the spring 23 is in the released position, the bolt 21 is held in the support 22 by the ring system 212 in contact with the first stop 222. The bolt 21, the support 22, and the spring 23 can therefore be mounted as a single unit on the door 40. Consequently, the installation and maintenance of the lock are simplified.

[0036] In addition, such a 212 ring system simplifies maintenance and allows only the 212 system to be replaced instead of the entire bolt 21 in case of damage.

[0037] At its opposite end, the cable 24 is attached to the drive mechanism of the housing 10. The rod device 20 may include for this purpose a hooking device 25 connected to the end of the cable 24 and configured to allow the cable 24 to be hooked to the drive mechanism 12 of the housing 10, for example to the rod guide 121 of the figures 7a and 7b The device 25 can also be configured to adjust the tension of the cable 24, thus facilitating the adjustment of the rod(s) device 20. Indeed, the action of the device 25 on the cable 24 allows the cable 24 to be tensioned quickly and the rod(s) device 20 to be made operational with few operations.

[0038] According to an example illustrated on the figure 5 and in more detail at the figure 6 as well as to figures 7a and 7bThe fastening device 25 may include a fastening means, for example a pin or an assembly comprising a threaded post 251 and a nut 253, the fastening means projecting from the rod guide 121. In this case, the post 251 is inserted into an opening 1210 in the rod guide 121 until a shoulder 2510 of the post 251 contacts the rod guide 121. A first portion 2511 of the post 251 opposite the shoulder 2510 projects from the rod guide 121, and a second portion 2512 of the post 251 opposite the shoulder 2510 and extending into the opening 1210. The post 251 is held securely to the rod guide 121 by crimping or by crimping (striking) to expand the second portion 2512 of the pillar 251 in a countersink (not shown) of the orifice 1210.It may also be provided that the orifice 1210 is polygonal to further maintain the pillar 251 in the rod guide 121, particularly in rotation. The first portion 2511 further has a thread 2513 in which the nut 253 is mounted. The threaded post 251 also passes through a connector 252 of the attachment device 25 in order to connect the cable 24 to the rod guide 121. The cable 24 passes first through the connector 252 via a first recess 255 of said connector 252, then loops back around the threaded rod 251, and then passes a second time through the connector 252 via the second recess 256 of the connector 252. Thus, it is possible, with the connector 252 and the ring system 212 in cooperation with the second stop 223, to adjust the tension of said cable 24 by pulling on the cable 24 so as to increase its length after the second recess 256.In this case, the first and second stops 222, 223 are positioned so that the bolt 21 is respectively fully extended (locked) and flush with the retaining flange 225 (unlocked) when the ring system 212 is in contact with the first stop 222 and the second stop 223, respectively. Thus, the ring system 212, in cooperation with the second stop 223, acts as an end stop to precisely adjust the tension of the cable 24 via the connector 252. To maintain the tension of the cable 24 and secure the cable to the rod guide 121, the cable 24 can then be knotted or clamped onto the connector 252 by a pinching force exerted by a nut 253.To prevent the door 40 from being unintentionally locked, for example when the nut 253 is loose and / or not properly tightened during assembly, a flat-ended headless screw 254 can be provided, configured to be inserted into the connector 252 and to hold the cable 24 redundantly with the nut 253. Thus, in the event of a failure at the nut 253, instead of the cable 24 slackening and raising the return spring 23, and consequently the bolt 51 into the locked position, the cable 24 is still held by the screw 254.

[0039] With reference to figures 6 And 8, the rod(s) device 20 may further include a cover 27 extending along the length of the cable 20 to conceal and protect it from mechanical shocks. The cover 27 is configured to be fitted, for example by push-fitting, into a cover support 26 (known as a "cap" in the lock industry) that is integral with the housing 10 and projects from one face 16 of the housing 10. The cover support 26 is, for example, welded or screwed to the housing 10. The device 20 may further include a set screw 271 configured to fix the cover 27 to the bolt support 22 via one of the lateral flanges 226, 227 in order to stiffen the assembly of the cover 27. Thus, the cover 27 may include a fixing hole 270 that can accommodate the set screw 271 and extends along only one face of the cover 70.Indeed, thanks to the side flanges 226, 227, the orifice 270 is always opposite at least one of the side flanges 226, 227 regardless of the orientation of the hood 70. The hood 27 is therefore more aesthetically pleasing compared to a hood with two mounting orifices for the stop screw that are opposite each other.

[0040] To ensure quick assembly, adjustment, and maintenance of lock 1, a technician can implement a method for assembling lock 1 in which, with reference to the figure 9 , the following steps are implemented.

[0041] During step E10, the housing 10 is mounted on the opening 40. In the case of a surface-mounted housing 10, it is fixed on the face 41 of said opening 40.

[0042] Alternatively, lock 1 may already be in place, with rod device 20 replacing a rod device that one wishes to change.

[0043] The bolt support 22 is then mounted on the face 41 of the opening 40 during a step E20.

[0044] The bolt 21 is then mounted in the support 22 during a step E30. According to one embodiment, the bolt 22 and the spring 23 can be mounted simultaneously in the bolt support 22, for example, the spring 23 is mounted and shouldered on the bolt 22 before the bolt 21 is mounted in the support 22.

[0045] The housing 10 and the rod(s) device 20 being mounted on a face 41 of said opening 40, it is then necessary to connect them in order to be able to lock and / or unlock said opening 41.

[0046] Thus, during a step E40, the cable 24 is threaded through the hole 213 opening from the bolt 21 until the stop 241 of the cable 24 is in contact with the end of the bolt 21.

[0047] It may be envisaged that steps E30 and E40 be carried out beforehand, for example in an assembly center. In such a case, the rod(s) device 20 is already assembled and delivered complete to the technician responsible for installing the lock 1.

[0048] Then, during a step E50, the end of the cable 24 is mounted on the drive mechanism 12. For example, the cable 24 can be mounted on the rod guide 121 via the hooking device 25 described previously.

[0049] At this stage, the lock 1 is mounted on the face 41 of the opening 40. It is possible that the cable 24 is not exactly the correct length and therefore not sufficiently taut to ensure proper operation of the lock 1.

[0050] Therefore, a step E60 for adjusting the tension of the cable 24 can also be provided, for example by means of the fastening device 25, by pulling the cable 24 exiting the second housing 256 until a desired tension is reached and then maintaining the desired tension by locking it onto the fastening device. This locking can be achieved by a knot or by tightening the nut 253 (on the flat-ended set screw 254).

[0051] Lock 1 is ready for use by inserting key 30 to lock and / or unlock opening 40.

[0052] In the event that the technician wishes to mount the hood 27, an additional step E70 may be provided in which he fits the hood 27 into the hood support 26, for example by push-fitting.

[0053] The lock 1 and the rod locking device(s) 20 described above have many advantages.

[0054] The device is particularly simple. Indeed, the action of the rod(s) device 20 is permitted with a minimum of parts, namely the cable 24 and the return spring 23, which has the effect of reducing the cost of the lock 1 and increasing the reliability of the rod(s) device 20.

[0055] The rod assembly 20 also facilitates the installation of the lock 1, as it comprises fewer parts compared to existing hardware. It is also possible to supply the technician with a pre-assembled rod assembly 20, ready for installation, further simplifying the installation of the lock 1. Maintenance of the assembly 20 is also easier. Indeed, in the event of a break in the cable 24, it is easily replaceable, unlike a slide which can be bulky and have multiple connections.

Claims

1. A rod-type locking device (20) for a multi-point lock (1) comprising: - a bolt support (22) configured to be mounted on an opening member (40), near the upper or lower part thereof, on the same side of the opening member (40) as a lock case (10) of the lock (1); - a bolt (21) intended to be mounted on the support (22), said bolt (21) then being movable in translation relative to the latter and being configured to lock and unlock said opening (40), the bolt (21) comprising an orifice (213) passing through it lengthwise; - a cable (24) passing through the hole (213) in said bolt (21), said cable being configured at its end intended to be furthest from the lock housing with a stop adapted to abut the edge of the hole and allow said bolt (21) towards an unlocked position relative to the support (22) under the effect of a pulling force exerted on said cable at its opposite end, - a hooking device (25) being connected to the end of the cable (24) opposite to that which has a stop, said device (25) being configured to allow the cable to be hooked onto an external actuating element (121) of a drive mechanism (12) of a lock housing (10) and to allow the tension of the cable to be adjusted; and - a return spring (23) intended to be mounted on the support (22) to push the bolt (21) back into a locking position.

2. Device according to claim 1, in which the hooking device (25) comprises a fastening means adapted to be attached so as to protrude on a rod guide (121) which is the actuating element on which it hooks.

3. Device according to claim 2, wherein the hooking device (25) comprises a threaded pillar (251) and a nut (253).

4. Device (20) according to one of claims 1 to 3, wherein the bolt (21) and the support (22) comprise: - one, a first and a second stop (222, 223), - the other, a groove (211) and a ring system (212) mounted in the groove (211), the cable (24) being configured to pull the bolt (21) toward an unlocked position where the ring system (212) abuts one of the stops (222, 223), the return spring (23) being configured to push the bolt (21) back to a locking position where the ring system (212) abuts the other of the stops (222, 223).

5. Device (20) according to one of claims 1 to 4, further comprising a cover (27) mounted on the support (22), the cover (27) comprising a fixing hole (270) extending on a single side of the cover (27).

6. Lock (1) with a rod locking device, the lock (1) comprising a housing (10) and a rod device (20) according to one of claims 1 to 5, the housing (10) being configured to be mounted on an opening member (40) and comprising a barrel (11) and a drive mechanism (12) movable in translation relative to the housing (10), the cable (24) being connected to the drive mechanism (12), the barrel (11) being configured to drive said mechanism (12).

7. Lock (1) according to claim 6, wherein the housing (10) is configured to be surface-mounted on a face (41) of the door leaf (40).

8. Method of mounting a lock (1) with a rod locking device (20) according to one of claims 6 and 7, the method comprising: - mounting (E30) the bolt (21) in the support (22); - placing (E40) the cable (24) through the hole (213) in the bolt (21); and - placing (E50) the hooking device (25) (24) on an external actuating element of the drive mechanism (12) of a lock case to ensure that the cable is hooked.

9. Mounting method according to claim 8, further comprising: - mounting (E20) the bolt support (22) on an opening member (40).

10. Method according to claim 9, wherein the method further comprises a step (E60) of adjusting the tension of the cable (24) by pulling the cable and maintaining the desired tension by locking it on the hooking device.

11. Method according to claim 10, wherein the locking is achieved by a knot or by tightening a nut included in the hooking device.

12. Method according to one of claims 8 to 11, further comprising placing (E70) a cover (27) in a cover support (26) projecting from a face (16) of the housing (10).

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