FR2477616A1 - Door lock control mechanism - has operating element disabled by blocking piece and released under given conditions or times of day - Google Patents

Abstract

The door lock has the movement of its rotary operating element limited by a moving blocking piece (10). The operating element engages the key bolt. The blocking piece moves independently of the key bolt into a blocking position that blocks the operating element (9) before it reaches its engagement position. The blocking piece moves in the region (8) between the operating element's quiescent and engaged positions. The blocking piece may be moved by an electromagnet (14) or by a mechanical device and consists of a pivoted lever with a projection (12).

Description

 The present invention relates to a door lock, in particular a built-in lock, the latch and / or bolt mechanism is displaceable by a bit which can be brought into drive prism with an actuating member capable of other rotation turned by means of an appropriate key, such as a cylindrical closing barrel, the possibility of which can move in rotation can be blocked by a locking element displaceable by an external operating member.

Thanks to the blocking element which can be brought into the blocking position from the outside, such a door lock can be blocked at any time so that it cannot be opened or closed even by the appropriate key. This is, for example, important in the case where commercial premises cannot be made accessible glu'to specific periods of the day to persons provided with appropriate keys, as well as to persons working there only during opening hours and to women. cleaning during closing hours. Conversely, it is also possible to prevent the doors from being closed using the appropriate keys at certain times of the day or on specific occasions, so that the doors concerned are closed only by the metal bolts, so that they can be opened by simple operating the bolt lifter.

Known door locks of the type indicated in the preamble are provided, according to French patent N 1 123 607, with locking cylinders, in which are installed the locking elements displaceable by the external operating member. Each blocking element consists of a blocking rod, which can be moved in a radial bore of the closing cylinder housing, which can, in particular by electrical excitation of an electromagnet placed on the closing cylinder housing, be engaged in or disengaged from a radial bore provided in the rotary cylindrical closing barrel, several of these closing cylinders are electrically connected in the manner of sequence switching, and a cam disc is associated with each cylindrical closing barrel switching, which opens and closes a switching contact belonging to the circuit of other closing cylinder electromagnets. Several of these closing cylinders can, for example, be mounted to form a common locking system for automobile doors. For installation in door locks of buildings of conventional construction, these closing cylinders provided with electromagnetically actuable locking elements or mechanically, hydraulically or pneumatically, however, are not suitable, since irone cannot be introduced into the profiled plug-in openings thereof, and require laborious assembly as well as complicated cabling0
The object of the present invention is therefore to provide a door lock, in particular a built-in lock, which, by the presence of a blocking element which can be moved by an external operating member, also provides protection against opening or closing. undesirable with the appropriate key, the mounting and installation of the locking element and its operating member being however considerably simpler, independently of the installation of a locking cylinder.

This problem is, starting from a door lock of the type mentioned in the preamble, solved according to the invention by the fact that the blocking element operable from the outside is disposed between the latch and / or bolt mechanism on the one hand and the bit of the operating member on the other hand and can be brought into locking engagement with the bit thereof. A door lock is thus obtained, the blocking element allowing its opening or its additional closure can be mounted and wired first of all in the door lock proper, therefore independently of the constitution of the operating member. rotary to be put in place normally after the fact in the hole for inserting the key or the cylinder of the lock, which member can thus be composed
If as well of a classic complete locking cylinder with closing fingers forming the bit, as also of a simple key carrying the bit. The adjustable locking element, including its external operating element, can be conveniently mounted in the interior of the door lock and can also be easily wired in the case of an electromagnetic external operation, without having to consider the 'subsequent installation of the operating member carrying the bit in the door lock.

For the desired blocking of the bit, the blocking element must as a rule be retracted and deployed in the rotation zone located between the rest and entrainment position of the bit, so that it cooperates directly with the bit of the actuator. In the case of door locks provided with a locking pin, it is however also possible to arrange the locking element so that the locking of the bit is effected indirectly by means of the locking pin. locking, the blocking element being able to be brought into a position blocking the bolt,
The external operation of the blocking element can be carried out in different ways, as a general rule by an electromagnet, but possibly also by a mechanical control element, which can advantageously consist of a sliding control register. resting in a ledge of the lock boxer.

The invention provides various variants for the production of the blocking element. '2inti, the blocking element may consist of a blocking lever arranged to pivot next to the rotation zone of the operating member, with a blocking heel which can pivot in the zone of rotation. But it can also be produced in the form of a sliding blocking register. In addition, there is the advantageous possibility of producing the blocking element so that it has two stop heels situated on either side of the rest position of the operating member and which can be introduced into the zone. of rotation of it. The operating member can thus be blocked in its two possible directions of rotation. In this case, the blocking element may advantageously consist of a sliding blocking register folded in the shape of an L, a branch of which extends parallel to the wall of the lock housing, and is in the form of a fork and carries the ends of the fork, the two stop heels, while on the other folded branch of the blocking register acts a lifting electromagnet and a return spring acting in reverse direction
The new door lock with the blocking element making it possible to block the operating member can be advantageously used for so-called emergency call systems, where it has two different roles to fulfill. On the one hand, it must protect the dwelling or house so that access by unauthorized persons is prevented at all times On the other hand, the door lock must, however, also allow that in the event that a person in need of assistance has triggered a emergency call, the door can be opened from outside by the emergency services. For this purpose, the door lock has, according to another important characteristic of the invention, in addition to its operable member lockable by the blocking element, another operating member which can be rotated thanks to an appropriate key and which can be brought into entry ;; nenent with the same latch and / or bolt mechanism Advantageously, the door lock has this two cylinder effect d e closing juxtaposed, or superimposed with different closings, in particular profiled cylinders, the closing fingers of which can be brought into driving engagement with recesses provided on the lock and of which a closing finger is intended to be blocked by the blocking element0 In these cases, the owner of the dwelling, a tenant or an owner of an apartment can therefore open or close from the inside and outside in the usual way with his appropriate key. actuates for this with its key a cylinder which can be closed on both sides, which is arranged on the outer side of the door below the stationary door button and on the inner side below the latch. Be stationary button allows the door to be opened from the outside only with the appropriate key; on the other hand the door can be actuated from the inside by the latch in case the lock is not closed0 The second cylinder for closing the door lock can only be closed from the outside and is intended for the person However, the latter can only open the door when the person requesting help, present in the home, has previously called for help and when consequently, from the corresponding emergency center, the locking cylinder generally locked was released by remote control of the electromagnet bringing the blocking summer installed in the lock in its unlocked position. In particular cases, the two closing cylinders can also be provided each with a blocking element making it possible to block its closing fingers at different times.

Several embodiments of a door lock according to the invention are shown in partial top view in the figures, the lock cover being removed.

- 'Figures 1 to 3 show built-in locks with a pluggable profile cylinder and a blocking element which can be actuated electromagnetically.

 - Figure 4 shows a built-in lock with two profiled cylinders and a mechanically actuable locking element.

 - Figure 5 shows a built-in lock with two profiled cylinders and two electromagnetically actuable locking elements for locking their closing fingers independently of one another.

 - Figure 6 shows a built-in lock with bolt and blocking element to block it, electromagnetically actuable.

 The built-in lock shown in FIG. 1 is of conventional constitution, having a closing latch 3 disposed displaceable in a housing 1, passing through an opening made in a flange 2, with recesses 4 provided on the barrel 3t of the latch, and a cylinder double profile 6 inserted in correspondingly profiled openings 5 in the lock case I and in the lock cover, which cylinder is blocked by the fixing screw 7 actuable from the flange 2 Next to the rotation path 8, indicated dotted line, the bit 9 which can rotate using the appropriate key, in this case the closing finger 9 of the cylindrical closing barrel forming the rotary actuating member, is arranged the locking element 10, which is here produced in the form of a blocking lever which can pivot around a pivot II and has a blocking heel 12 which can pivot in the rotation path 8 of the closing finger 9. En o Other, on the locking lever 10 is provided an extension 13 in the form of a fork into which penetrates the free end of the pivoting lever 15, actuable by the built-in electromagnet 14, which can pivot around the stationary axis 16 on the attachment 17 of the electromagnet 14. On its lower end 15 ′ acts a return spring 17 ′, which maintains the operating lever 15 and thus also the pivoting lever 10 in the disengaged position shown. If, on the other hand, the electromagnet 14 is excited by an appropriate electrical remote control, the operating lever 15 is attracted and the locking lever 10 pivots, so that its stopping heel 12 reaches the locking position, penetrating into the rotation path 8 of the closing finger 9. Be closing finger 9 is thus prevented from reaching by rotation in its drive position re-blocking the lock 3. The lock is thus blocked so that its lock 9 can not be retracted nor closed even by using the appropriate key. For this, the locking lever must have been returned to its disengaged position represented by interruption of the excitation current of the electromagnet 14.

In the case of FIG. 2, the blocking element is produced in the form of a sliding blocking register 18 folded in the shape of a t, one branch 18 'of which extends parallel to the wall 1 of the lock case and is guided by means of the guide pins 20 passing through the oblong holes 19. The branch 18 ′ is produced in the form of a fork and has at its two fork ends a blocking heel 18 "o
On the other branch1 "of the register 18 acts a compression spring 21, which is supported on the fixing 29 of the double lifting electromagnet 23 and thus maintains the register-18 in the disengaged position shown. If on the other hand the electromagnet 23 is excited by a current, the branch 18 "'of the damper is drawn against the action of the return spring 21 by the magnets, the damper 18 is moved to its blocking position in which its two locking heels 18 "are deployed on either side of the closing finger 9 in the rotation path 8 thereof, so that the closing finger 9 is blocked in both directions of rotation.

 The embodiment shown in Figure 3 is a variant of that of Figure lo Is here different the fact that the locking element is made in the form of a lever 25 with two arms which can pivot around the pivot 24, to one end of which is the locking heel 25 'which can penetrate the rotation path of the closing finger 9 and at the other end 25 "from which the armature 14' of the electromagnet 14 acts directly through a link joint 26 with an oblong hole.

 The door lock according to FIG. 4 is equipped with two juxtaposed profile cylinders 6, 6 ′, which are fixed by the fixing screw 7. While the profile cylinder 62 can be actuated in a conventional manner by the appropriate key and thus can block and unlock the latch 3 correspondingly, the closing finger 9 in profiled cylinder 6 can be blocked by the locking element 10 and its stopping heels 12 which can pivot around the rod 11 In this case, the corresponding maneuver of the blocking lever 10 is effected by a sliding control damper 27 resting in an oblong hole 2 in the lock rim 2 and which is adjacent by its chamfered front surface 27 ′ to the side 10 ′ chamfers correspondingly to the blocking lever 10. If the blocking register 27 is moved upwards from its position shown, then, by sliding one over the other of the chamfered surfaces 37 ′, 10 ′, the blocking lever 10 is pushed and penetrates by its heel of blocking 12 d in the rotation path of the turne firm finger 9, so that the latter is prevented from coming into drive engagement with the recesses 4 provided in the lock barrel 3 ′. With this lock embodiment, an owner residential, which can for example open or block the door at any time with the appropriate key via the profile cylinder 6, can allow access to the home only at specific times of the day, a service person, who can only operate profile cylinder 6 with the appropriate key.

 The built-in lock shown in Figure 5 is also provided with two profiled cylinders 6, 6 ', which can optionally also be superimposed. In this case, however, the two closing fingers 9, 9 ′ may have their rotational movement respectively blocked by a locking element 28, 28 '. Heap two blocking elements consist in this case of two rollers provided on the ends of the frame 14 'of two electromagnets 14, the rods 29 29' carrying the rollers being guided simultaneously in oblong holes 30, 30 ' of the lock case. On the other end of the frames 14 'there are torsion bars 31, 31', which tend to keep the frames 14 'and the rollers 28, 28' thereof in the disengaged position. By appropriate remote control, the two electromagnets 14 can be electrically excited independently of one another, the two closing fingers 9, 9 'being able to be locked independently of one another in their rotational movement. Such a mode of execution of a lock is for example advantageous for factories with shift work, where thus always only the people working in a determined shift have access to the workshops at the corresponding time, and on the other hand are prevented moments to access the premises. It is understood that for this case, the lock can also be provided with more actuatable and lockable profiled cylinders independently of each other.

In the case of the built-in lock shown in FIG. 6, provided with a bolt 32 produced in a conventional manner, the blocking or unblocking possibly undesirable of the bolt 3 by means of the key adapted to the profiled cylinder 6 can be prevented by the fact that the blocking element 33 does not directly block the rotational movement of the closing finger 9 but blocks the bolt 32. In the present case, the blocking element 33 is produced in the form of a sliding damper 33 resting at the free end of the armature 14 ′ of the electromagnet 14, which is guided as in the case of FIG. 2 by means of oblong holes 19 in the wall of the box. tier of lock and guide pins 20 penetrated therein 'when the electromagnet 14 is energized and thus its armature 14' is attracted, the blocking register 33 arrives with its lower blocking edge 33 'above of the blocking edge 32 ′ of the bolt 32, which is thus blocked against a displacement upwards t by the closing finger 9o Be closing finger 9 cannot consequently penetrate into the recesses 4 of the bolt, the bolt 3 is therefore not blocked.

 It is understood that the embodiments described above for the possibilities of blocking the different closing cylinders can be combined in any way with one another, in particular also in such a way that the built-in locks shown in FIGS. 1 to 3 and 6 are provided with another closing cylinder which can be actuated in a conventional manner, which acts on the same latch and / or bolt mechanism as the closing cylinder to be blocked. Such a double arrangement of juxtaposed or superimposed closing cylinders is particularly advantageous for the case already described above of the emergency call system, where thus on the outside of the door two such closing cylinders are visible, one of which is suitable for the normal user of the door and the other, after a possible call for help from the latter, for help. In order to exclude fraud, the opening of the key of the locking cylinder containing the locking finger to be blocked is advantageously provided with a movable closing cover, so that the key can only be inserted into this locking cylinder when the closing cover has been turned to release the key channel. In this way, not only does it prevent fouling of the cylinder, which is exclusively necessary in the event of driers, but also an important emergency position for the normal use of the door lock by the owner of the dwelling or the user of the two cylinders of the new built-in lock have different closings and can also be incorporated into one or two master or master key systems independent of each other.

Claims (13)

1) Door lock, in particular a built-in lock, the bolt and / or bolt mechanism of which can be moved by a bit (9) which can be brought into drive engagement with an operating member capable of being turned by means of a suitable key, such as a cylindrical closing barrel, the possibility of which can be rotated can be blocked by a locking element (for example 10) displaceable by an external operating member, characterized in that the locking element 10 actuable from the outside is arranged between the latch and / or bolt mechanism on the one hand and the bit 9 of the operating member on the other hand and can be brought into locking engagement with the bit 9 of it this.  2) Door lock according to claim 1, characterized in zen that the locking element 10 can be brought in and removed from the rotation zone 8 of the bit 9.  3) door lock according to claim 1 equipped with a locking pin, characterized in that the blocking of the bit 9 by the locking element 33 is effected indirectly via the locking pin 32, the element blocking device 33 which can be brought into a stop position blocking the bolt 32.  4) Door lock according to one of claims 1 to 3, characterized in that the locking element 10 can be actuated by an electromagnet 14.  5) door lock according to one of claims 1 to 3, characterized in that the locking element 10 is actuable by a mechanical control element 270 6) Door lock according to one of claims 1 to 5, characterized in that the locking element consists of a locking lever 10, 23, pivotally disposed next to the rotation zone 8 of the bit 9 of the operating member, with a blocking heel 12, 25 ', which can pivot in the rotation zone 8. 7) Door lock according to one of claims 1 to 5, characterized in that the locking element consists of a sliding stop register 18, 23.  8) Door lock according to one of the reven dicaticns 1 to 7, characterized in that the locking element 18 has two locking heels 18 "arranged on either side of the rest position of the bit 9 of 1 'operating member and can be brought into the rotation zone 8 thereof.  9) door lock according to one of claims 7 and 8, characterized in that the locking element consists of a sliding stop register 18 folded in L-shape, including a branch (18 ') s' extends parallel to the wall 1 of the lock case, is in the form of a fork and carries at the ends of the fork the two blocking heels 18 ", while on the other folded branch 18" 'of the stop register 18 acting a lifting electromagnet 23 and a return spring 21 acting in the opposite direction. 10) Door lock according to claim 5, characterized in that the control element consists of a sliding control register 27 resting in a flange 2 of the lock housing. 11) Door lock according to one of claims 1 to 10, characterized in that it comprises, in addition to its operating member comprising the bit (9) lockable by the locking element (10), another member maneuver that can be rotated using an appropriate key, with a bit 9 'which can be brought into drive engagement with the same latch and / or bolt mechanism.  12) Door lock according to claim 11, characterized in that it comprises two closing barrels (6, 6 ') juxtaposed or superimposed with different closings, in particular profiled cylinders, whose closing fingers 9, 9' can be brought into drive engagement with recesses 4 provided on the lock barrel 3 and of which at least the closing finger 9 can be blocked by the locking element 28. 13) Door lock according to claim 12, characterized in that the closing hole of the closing cylinder 6 containing the closing finger to be blocked is equipped with a mobi lee shutter cover