EP0947653B1 - Espagnolette or Espagnolette lock for doors, French doors or the like - Google Patents

Description

The invention relates to a cremone bolt or bolt lock comprising a control mechanism incorporating at least one reversing pinion for driving two steering rods of opposite displacement and each provided with a rack engaging the teeth of the reverse gear.

The present invention relates to the field of hardware of the building and will find its application, more specifically, as part of the locking bolts of the cremone bolt type or espagnolette lock.

In fact, the invention will find a very particular interest in level of the bolts or bolts-locks comprising, in a central box, a control mechanism through of which a user can act on two operating rods extending, respectively, above and below the housing, this by communicating directional movements to them opposite.

We already know, from document CH-A-178162, a cremone bolt or bolt lock which comprises the features mentioned in the preamble of claim 1.

Such a control mechanism comprises, in particular, a pinion motion reverser with teeth with which are in taken, diametrically opposite, the racks equipping these operating rods. In this regard, we will already specify that such racks can equipping transmission components forming an integral part of the control mechanism housed in the central box of the cremone bolt or bolt-lock and extending from inside of this housing, the aforementioned operating rods. one obviously understands that the invention, as it will be explained further in the description, also relates to such embodiments.

If there are cremone bolts of simplified design where the user can act through a handle or a control button on a follower defining the reverse gear, it is also known as locking bolts of the lever type or cremone bolt where this user action is reflected on a follower who is engaged with only one of these rods of maneuver, this follower being able, frequently, to ensure the control of another locking member, such as a bolt U-turn, a tilting bolt or the like. In this case, beyond meshing on a suitable toothing of the follower, this operating rod engages the reverse gear aforementioned capable of reversing the movement for training the second rod in an opposite direction.

Of course, we gain, again, in complexity at the level of this control mechanism when the latter also receives a key element as is the case for locks and bolts.

Anyway, at the level of the cooperation of the pieces in movement of such a cremone bolt or bolt-lock control mechanism persists, necessarily a functional game, hence results, in fact, an uneven displacement of the rods of maneuvering one against the other.

In particular, it will be observed that the central box of these cremone bolts or locks are, generally, implanted at height of the front upright of the door leaf, French window or the like, of the pivoting type, so that these operating rods extend, respectively, above and below said central box.

In such an arrangement it is understood, of course, that the operating rod extending above said housing comes, by its own weight, make up for its play with the command in the direction of the box corresponding, often, to the unlocking direction of this operating rod. Unlike, the one extending under this central box of the cremone bolt or bolt lock, under the effect of its weight, comes catch up with the elements that ensure it the drive, this time towards the lock. Under these conditions, these operating rods cannot react through their respective locking devices, similarly, one in relation to the other, in case of lock command or even when unlocking. So, it is not uncommon to see the locking devices of a lower operating rod reach the end of travel locking in their respective keeper, while the organs bar lock are barely engaged in said strikes. This problem is encountered, everything particularly, when outside the game resulting from the control mechanism for such a cremone bolt or cremone bolt, mounting the latter on the sash or the positioning of the strikes at the level of the frame is somewhat faulty.

In addition, when the very end of these operating rods is brought to constitute, in itself, a locking member and, therefore, to stand out in relation to the cross member upper, depending on the lower case, of the opening to cooperate with a keeper, respectively, at the level of the upper cross member of the frame or even at the level of the door threshold or the like, it is not uncommon that due to previously mentioned problems, the end of the rod lower maneuver, although being brought into position unlocking remains slightly prominent compared to this lower cross member of the sash. This can hamper the maneuver of the latter either from the start, when, during the editing, we have not fully mastered the game rebate of this opening and of the sleeping frame, that is to say in the long run, following a slight sag of the joinery.

If, as has just been explained, there are risks of malfunction of such a lever or lever-bolt resulting from play in the control mechanism and the action of the weight of the operating rods relative to this game, it should be noted that when unlocking the locking members inserted in their keeper, provide a resistance tending to oppose the controlled movement. In this case, the game is caught up according to a reverse direction. Also, the risks that an organ of locking, associated or defined by an operating rod, persists in a semi-locked position, are carried over from the lower rod to the upper rod.

Ultimately, the present invention is intended to provide a definitive solution to the above problem by providing said operating rods with displacements of a different amplitude to compensate for the functional play of the control mechanism for these bolts or bolts. In fact, the invention was able to meet this condition without this does not translate into an increased complexity of said mechanism ordering these cremone bolts or rod locks opposite movement maneuver.

To this end, the invention relates to a lever or lever-bolt comprising a control mechanism integrating at least a reverse gear for driving two rods of maneuver in opposite direction of travel and provided, each directly or through a transmission device intermediate, of a rack engaged on said pinion inverter, characterized in that the latter comprises two diametrically opposite toothed sectors of diameter different primitive for training according to races unequal of said operating rods.

Other objects and advantages of the present invention will appear during the description which follows relating to an embodiment which is given only as indicative and non-limiting example.

• la figure 1 est une représentation schématisée du mécanisme de commande d'une crémone conforme à la présente invention, ceci lorsque l'on est en position de déverrouillage ;
• la figure 2 est une vue partielle et agrandie de la figure 1, les éléments étant illustrés, ici, dans leur position verrouillée.
• la figure 3 est une représentation similaire à la figure 1 illustrant la crémone en cours d'assemblage.

The understanding of this description will be facilitated by referring to the attached drawing in which:

• Figure 1 is a schematic representation of the control mechanism of a cremone bolt according to the present invention, this when one is in the unlocked position;
• Figure 2 is a partial and enlarged view of Figure 1, the elements being illustrated, here, in their locked position.
• Figure 3 is a representation similar to Figure 1 illustrating the cremone bolt being assembled.

As shown in Figures 1 to 3 of the attached drawing, the present invention relates to the field of fittings of locking, more particularly that of the cremone bolts 1 or espagnolettes-locks. In fact, the invention mainly relates to on such cremone bolts 1 or lock bolts whose mechanism control 2 is able to communicate with rods of maneuver 3, 4 extending on either side of the latter movements in opposite direction.

In fact, for this purpose, such a control mechanism 2 comprises, usually a reverse gear 5 with which are in taken, substantially, diametrically opposite, two racks 6, 7 associated, each, with a rod of maneuver, respectively, 3, 4.

In this regard, as illustrated in these Figures 1 and 2, these operating rods 3, 4 can simply be extended to the interior of the housing 8 accommodating the control mechanism 2. They include, then, at their internal end audit case 8, a toothing or a succession of openings 9, 9A able to define the racks 6, 7.

However, inside such a housing 8 one and / or the other of these operating rods 3, 4 can still be extended by a suitable transmission device, by therefore integrated into the control mechanism 2, and receiving the rack, as the case 6 or 7. Also, when it is done reference, in the following description, to the rods of maneuver 3, 4, when it is a question, in particular, of racks 6, 7 which equip them, it will be understood that the present invention extends, also, to the solution which comes to be evoked consisting in appealing to such organs of intermediate transmissions able to extend the operating rods 3, 4 inside the housing 8.

Note, moreover, that if we can fully envisage a direct user action, for example by a handful of controls, on this reversing pinion 5, this user action can still be conducted on other organs of the command 2, just as illustrated in figures 1 and 2. In Indeed, there is, here, a follower 10 mounted in rotation in the housing 8 and comprising, in its center, a housing 11 for the reception of an operating square of a handle or a control button. Such a follower 10 can act, independently, on a bolt type locking member U-turn or deadbolt. This follower 10 can still be provided with a tilting bolt 12 capable of cooperating, in the position of lock as shown in Figure 2, with a keeper arranged in correspondence, for example on the frame sleeping on a door, French window or the like.

In such a design, this follower 10 has teeth 13 meshing on a rack associated with one of the operating rods 3, this rack being, there again, defined by a succession of teeth or openings 15 provided at said operating rod 3.

Ultimately, according to the invention, the reverse gear 5 has two diametrically opposed toothed sectors 16, 17 and of primitive diameter 18, 19 different for training according to uneven strokes of said operating rods 3, 4.

Also, the present invention makes it possible to respond, advantageously, to the problem encountered for management races of these operating rods 3, 4 due to the play functional existing between the moving elements of the control mechanism 2.

For example, by coming to mesh, through its rack 6 on the toothed sector 16 of original diameter 18 lower compared to the original diameter 19 of the sector toothed 17 cooperating with the rack 7 of the rod maneuver 4 extending downwards, the operating rod 3, extending above the housing 8, is subject, necessarily to a less displacement relative to said operating rod 4 when ordering the cremone bolt 1. Finally, through this additional stroke printed on the rod lower 4, it is possible to ensure that the end lower of the latter, constituting in itself an organ of locking is fully retracted from the cross member lower of the opening receiving this lever 1, when it is brought into its unlocked position.

In the end, we were able to highlight that the meshing which takes place through the racks 6, 7 operating rods 3, 4 on the reverse gear 5 rarely exceeds half the circumference of the latter, what the invention was able to take advantage of.

As can be seen from the above description, the mounting of such a cremone bolt 1 requires taking a certain number of precautions. Also, when assembling the parts that make it make up, it is necessary to ensure the correct positioning of the reversing pinion 5 in the housing 8 so that its toothed sectors 16, 17, of different diameters 18, 19 different, come to cooperate well with the right operating rods 3, 4, taking into account, moreover, that the angular positioning of this reverse gear 5 is strictly dependent on the position angular imparted to the follower 10 inside the housing 8 during this assembly.

To avoid any assembly error within the framework of a industrial mass production of such cremones 1 while avoiding, moreover, to resort to means indexing and other keying points making the manufacturing of the different parts, we imagined to design the follower 10, provided with its tilting bolt 12, and at least the reversing pinion 5, through the same process of manufacturing, for example, by molding or forging, while ensuring that at the end of this manufacturing process this follower 10 and this reversing pinion 5 are made integral relative to each other by means of connecting means retractable 20 in such a way that they come to occupy in space and as visible in figure 3 of the drawing in annex, a position relative to each other which corresponds to their respective positioning within the cremone bolt 1 to carry out, after assembly of the latter.

In this regard, it appears from this Figure 3 that the housing 8, is decomposing into a bottom and a cover, accommodates, by elsewhere, spacers 21, 22 intended to contribute to the connection between this bottom and this cover while ensuring their keep a good distance from each other for the correct operation of the cremone bolt 1.

Preferably, both the follower 10, the pinion inverter 5 and said spacers 21, 22 come from the same manufacturing process under the conditions set out above, process by which these different parts are made secured by retractable connecting means 20.

It will be noted, in passing, that at the bottom and at height of the housing cover 8 can be provided means for guiding and holding the moving parts of the command 2 of this cremone bolt 1. Such guide means can be in the form of openings for reception in free rotation of the hub 23 corresponding to the follower 10 or again from that 24 of the reverse gear 5.

Going back to the manufacturing process simultaneously different parts 5, 10, 21, 22, it should be noted that if it is desirable that the hub 23 of the follower 10 or else that of the reversing pinion 5 or even the leading part 25 of the tilting bolt 12 are designed, for example, of steel for mechanical strength issues, these hubs 23, 24 or even this attack part 25 can be in the form of inserts which we then place inside the front mold injection which has the consequence of bringing to the different parts the required mechanical characteristics.

Finally, during the assembly of the cremone bolt 1, we comes to dispose the subset previously described in the box 8 before securing the bottom and the cover defining the latter.

It should be noted that during this operation assembly of the housing or even later, we proceed the removal of the retractable connecting means 20 for authorize the free movement of the different parts compared to the others, in particular of the follower 10 and the pinion inverter 5.

For this, this cremone bolt 1, in fact said case 8, comprises means for the passage of a tool to ensure this surgery. So these means can be defined by a series openings in the bottom and / or the cover of said housing 8 to allow the passage of punches, for example. This will be particularly the case when such connecting means retractable 20 are in the form of bars of connection directly from the process, for example by molding by injection, of the different parts 5, 10, 21, 22, such as visible in figure 3.

However, it should be noted that such means of retractable link 20 can also be constituted by elements with preprogrammed failure, in particular through a adequate local embrittlement.

In this regard, this removal of these connecting means retractable 20, in the form of preprogrammed breaking elements for example, can be provided by one or more command able to act on one and / or the other of the parts movable fittings. In short, during a first maneuver, such an operating member comes constrain, in its movement, said moving part on which he acts and possibly other parts, this which results, precisely, in the rupture and removal of such connecting means 20.

Substantially, the means for the reception of such an organ can be made up, in the case of the lever 1, through the housing 11 in the follower 10 for receiving the square for operating a handle for example.

As is apparent from the above description, the cremone bolt, in accordance with the present invention, makes it possible not only to respond to the problem posed and recalled in the section introductory to this description, but, in addition, is to even meet the constraints of a manufacturing industrial in large series.

Claims (4)

1. Espagnolette or espagnolette-lock (1) comprising a control mechanism (2) integrating at least a reversing pinion (5) for driving two operating rods (3, 4) with opposite direction of displacement and each provided, directly or through an intermediate transmission organ, of a toothed rack (6, 7) engaging said reversing pinion (5), characterised in that the latter includes two diametrically opposite toothed sectors (16, 17) with a different pitch diameter (18, 19) for driving said operating rods (3, 4) over unequal travel distances.
2. Espagnolette or sspagnolette-lock (1) the operating rods (3, 4) of which extend above and below the control drive (2), respectively, according to claim 1, characterised in that the pitch diameter (18) of the toothed sector (16) with which engages the toothed rack (6) of the operating rod (3) extending above the control mechanism (2) is chosen smaller than the pitch diameter (19) of the toothed sector (17) that engages the toothed rack (7) of the operating rod (4) extending below said control mechanism (2), in order to impart to the latter operating rod (4) a displacement of more significant amplitude with respect to the displacement imparted to the other operating rod (3) during controls for unlocking and locking.
3. Espagnolette or espagnolette-lock (1) according to any of claims 1 and 2, the control mechanism (2) of which also includes a tumbler (10) actuatable by means of a control handle or knob designed capable of acting on locking body such as a spring-bolt or a dead bolt and/or provided with a tilting bolt (12), this tumbler (10) including a toothing (13) engaging with a toothed rack associated with one (3) of the operating rods (3, 4), characterised in that at least the tumbler (10) and the reversing pinion (5) are manufactured, simultaneously and through the same manufacturing process, namely through moulding or forging, this tumbler (10) and this reversing pinion (5) being made integral, through said process, by means of retractable connecting means (20), so that they adopt, spatially, a position with respect to each other, which corresponds to their respective positioning within the framework of the espagnolette or espagnolette-lock (1), after the assembly of the latter.
4. Espagnolette or espagnolette-lock (1) according to claim 3, characterised in that it includes a casing (8) designed capable of accommodating the control mechanism (2) and comprised of a bottom and a lid made integral by means of spacers (21 22) made simultaneously and through the same manufacturing process as the tumbler (10) and the reversing pinion (5), while being made integral with the latter through retractable connecting means (20).

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