EP0770751B1 - Device for holding a wing ajar - Google Patents

Abstract

The lock fitting for a door comprises a locking bolt consisting of an operating rod extending on a door rabbet. It is displaced by a drive mechanism activated by a control handle or key cylinder (12). The door is held ajar by a support (23), fixed on the door frame, on which is pivoted one (25) of the ends of a compass arm (26). The opposite end (27) of the compass arm has a guide pin (29) or a roller. This pin slides inside a strike plate (30) in a support (31) which is fixed to displace with the operating rod placed on the door. This limits the opening angle of the door relative to the door frame. The fastener disengages from the strike plate following displacement of the operating rod, acted on by the handle, consequent to it opening the door wider.

Description

The invention relates to a window locking fitting, French window, door or the like, comprising a mechanism for locking mechanism of the bolt type comprising at least one rod maneuver extending at least partly in rebate of the opening and controlled in movement by a mechanism drive actuated by a control element of the type handle, key cylinder or the like.

The present invention will find its application in the field of the building hardware.

We already know a good number of locking fittings meeting the description above. In this regard, we know in particular, the locking fittings for tilt-and-turn opening which not only allows opening of the sash by pivoting about an axis of vertical rotation, but also allow opening ajar of this opening by tilting towards the inside of housing around a horizontal axis of rotation materialized by the lower crossmember. In fact, in this case, the means allowing the opening of the opening are presented under form of a compass arm connecting the upper crossmember of opening it to a hinge fitting secured to the frame. This compass cannot be made free to rotate relative to opening it only under the action of a locking mechanism under form of an operating rod. This is placed in rebate at the top edge of this opening and whose on-the-go control is provided by a appropriate drive mechanism. On the latter acts the user by means of a control element, such as a handle. More precisely, under the action of this handle and, therefore, of the displacement of the operating rod, this results in the displacement of a hooking member, in the form of a stud associated with the operating rod, relative to a keeper precisely positioned on said compass arm. It's only under these conditions that said compass arm can, effectively, freely pivot on the sash.

Mechanically speaking, this type of locking device for tilt-and-turn window is particularly convenient in since the same handle allows the user to lock or unlock the window, serves it, also, control for the ajar opening of opening it.

However, as can be seen in the context of these tilt-and-turn windows or French windows, when are brought into their ajar position, ventilation is product, necessarily, in the upper part of the opening. Gold, it is more and more common that such windows or glass doors extend almost to the ceiling of a room. he is obvious, under these conditions, that aeration can be insufficient, forcing users to open the window or French window for the result research. However, they are at the same time obliged to give up to the security that their position gives them when slaughtering. All in particular, it is evident that in such a position in flap, there is no risk of accident for the occupants, these cannot, in fact, fall out of the window through inadvertence, or when the user has used objects motley, to block the ajar opening, which can cause the opening of the window which can injure the user during his fall.

We understand, when these occupants are children, that we cannot renounce this security by opening a door to the French on the pretext that the ventilation obtained in the position by slaughtering is insufficient.

In this connection, there is also the technical problem consisting in ensuring that the total opening of the opening can only be obtained if an order voluntary carried out by authorized persons. So if he must be prevented, in rooms occupied by children, by example, that the windows can open wide, it is necessary, however, to authorize such opening for allow access to the exterior glazed surface of the window for cleaning and / or maintenance.

Again in such a fully open position of the window, it may be appropriate to limit the angle of rotation of the leaf relative to the frame so as to avoid damaging the hinge fittings. Indeed, in due to construction constraints but also insulation through the interior of a dwelling, it is not uncommon for a window is housed inside the frame delimiting the opening in the construction intended to receive this window. Under these conditions and when opening the of the opening, it comes to rest on the lateral spine of this frame and if, by mistake, we exerts pressure on this opening bearing on the spine lateral, this creates a lever arm from which results a multiplied pressure transmission on fittings of articulation which, of course, cannot always resist to such constraints.

There are already a number of gaiters able to limit the pivoting of the opening in the case, for example, its opening to the French. However, to activate this type of opener, it is necessary to intervene, the more frequently, on different control means from those authorizing the locking and unlocking of the opening. Such half-gaps make it compulsory, therefore, performing additional manipulation, often prohibitive, to activate them. Finally, these half-openers requiring, most often, a surface-mounted, they question the aesthetic aspect of the opening.

The present invention is intended to solve the problems mentioned above through a locking fitting provided with a device for holding the sash in a position ajar which is likely to be activated using the locking mechanism, so that it turns out to be of great convenience of use.

So, in the very particular case of a window or French window with French opening, i.e. by pivoting opening it around a vertical axis of rotation, this locking fitting offers the possibility of limiting the angle French opening of this opening for a gain of security, knowing that it can also, in certain cases of figure, limit this angle of rotation of the opening relative to to the frame to avoid damaging the window proper.

It is also known through document EP-A-0.380.440 a locking fitting for window, French window, door or analogous, having a locking mechanism of the type cremone bolt on which the user can act a drive mechanism actuated by an element of control, more specifically a handle. This fitting makes still call for a device to hold in a position ajar opening the opening of said window, knowing that this device comprises a support fixed to the frame provided with a fork-shaped end at which is capable to hang on one end of a compass arm whose the opposite end is mounted articulated on the opening. More particularly, this end of the compass arm is mounted swivel on an operating rod corresponding to the cremone bolt and the displacement of which results, depending on the case, to ensure the attachment or detachment of said arm compass in relation to the support on the frame.

The invention consists of a locking fitting for window, French window, door or the like, having a locking mechanism, of the bolt type, comprising at least an operating rod extending at least partly in rebate of the opening and controlled in displacement by a drive mechanism actuated by a control element of the handle type, key cylinder or the like, this fitting locking device further comprising at least one device for maintain, in a partially open position, the opening of said window or the like provided with a compass arm capable of connect the frame to the sash, this to limit the angle of pivoting of the latter relative to this frame, this device being defined by a support fixed on the frame and on which is articulated one of the ends of the arm of compass, the opposite end of which is provided with means attachment, such as a nipple or a roller capable of slide inside a strike associated with a mounted support integral in movement with an operating rod placed on the opening, in order to limit the pivot angle of this last relative to the frame, said attachment means being able to disengage from said strike following displacement as a consequence of the said actuating rod under the impulse of the control element acting on the mechanism drive, with a view to a larger opening of opening it.

The advantages arising from the present invention consist, essentially, in that the device for keeping the sash in the ajar position can be directly controlled by the handle or key cylinder acting on the locking mechanism. Finally, this makes the locking fitting particularly convenient to manipulate. In addition, all of the elements constituting this locking fitting, can be installed in rebate of the window or the like which makes it completely invisible.

In addition, by limiting, through this fitting of locking, the angle of rotation of the sash relative to the dormant, as part of a normal opening, for example at French, we respond advantageously to the difficulty in obtaining adequate ventilation which is not the case for tilt-and-turn windows installed as described was described in the introductory part. At the same time, we responds to the notion of security required by this type of opening ajar from a window, French window or the like.

• la figure 1 représente une vue schématisée et en perspective d'une fenêtre équipée d'une ferrure de verrouillage conforme à l'invention ;
• la figure 2 représente une vue schématisée de cette ferrure de verrouillage venant équiper un ouvrant tel que représenté dans la figure 1 ;
• la figure 3 est une représentation schématisée du dispositif permettant de maintenir entrebâillé l'ouvrant par rapport au cadre dormant ;
• la figure 4 est une vue schématisée en perspective et éclatée du dispositif tel que représenté dans la figure 3, la position prise par les éléments étant celle correspondant à l'ouvrant entrebâillé ;
• la figure 5 est une représentation en élévation de la configuration prise par les éléments du dispositif tel que représenté dans la figure 4 lorsque l'ouvrant est entrebâillé ;
• la figure 6 illustre un élément de commande, sous forme d'une poignée dans une position qui peut correspondre aux situations illustrées dans les figures 4 et 6 ;
• la figure 7 est une vue similaire à la figure 4, les éléments étant représentés dans une position correspondant à la libre rotation de l'ouvrant par rapport au dormant ;
• la figure 8 est une vue similaire à la figure 5 représentant la disposition des différents éléments composant le dispositif à même de maintenir l'ouvrant entrebâillé lorsque celui-ci est susceptible de pivoter, librement, par rapport au dormant ;
• la figure 9 est une vue analogue à la figure 6, illustrant la position prise par la poignée dans les situations représentées dans les figures 7 et 8 ;
• la figure 10 est une vue en coupe selon X-X de la figure 8.

The invention will be better understood on reading the description which follows, accompanied by the drawings relating to an embodiment given by way of example.

• Figure 1 shows a schematic perspective view of a window fitted with a locking fitting according to the invention;
• 2 shows a schematic view of this locking fitting fitted to an opening as shown in Figure 1;
• Figure 3 is a schematic representation of the device for keeping the opening ajar relative to the frame;
• Figure 4 is a schematic perspective and exploded view of the device as shown in Figure 3, the position taken by the elements being that corresponding to the opening ajar;
• Figure 5 is an elevational representation of the configuration taken by the elements of the device as shown in Figure 4 when the opening is ajar;
• FIG. 6 illustrates a control element, in the form of a handle in a position which can correspond to the situations illustrated in FIGS. 4 and 6;
• Figure 7 is a view similar to Figure 4, the elements being shown in a position corresponding to the free rotation of the opening relative to the frame;
• Figure 8 is a view similar to Figure 5 showing the arrangement of the various elements making up the device able to keep the opening ajar when the latter is capable of pivoting, freely, relative to the frame;
• Figure 9 is a view similar to Figure 6, illustrating the position taken by the handle in the situations shown in Figures 7 and 8;
• FIG. 10 is a sectional view along XX of FIG. 8.

The present invention relates to a fitting of lock 1 visible in Figure 2 which, among other things, keeps it in a partially open position 2 3 corresponding, as shown in FIG. 1, to a window, French window, door or the like 4.

In this regard, it has been represented in FIG. 1, a window whose opening 3 is pivotally mounted, about an axis of vertical rotation 5, on a frame 6. However, the present invention is not limited to such an opening mode which, when the opening 3 pivots towards the inside of housing is usually defined as an opening to the French. More particularly, the locking fitting 1 is also applicable to sashes mounted to pivot around a horizontal axis of rotation on the frame, of the type opening to the Italian.

Thus, this locking fitting 1, according to the invention, includes a locking mechanism 7 of the lever type, one of which embodiment is illustrated in Figure 2. More specifically, this locking mechanism 7 comprises at least an operating rod 8, 8A; 9, 9A extending at least in rebate part 10 of the opening 3. The displacement of these operating rods 8, 8A; 9, 9A is obtained by through a drive mechanism 11 actuated by a control element 12 of the handle, button, barrel type; key, etc ...

As shown in Figures 1 and 2, this element of command 12, more particularly illustrated in the form of a handle, can be mounted on the front upright 13 of the sash 3 so as to cooperate with one or more rods of maneuver 8, 9 extending in rebate, upwards or downwards down along this amount before 13 so as to intervene, by example, on one or more locking members 14, roller type or the like capable of cooperating with strikes 15 arranged in concordance on the frame 6. Note that if the drive mechanism 11 operates on several rods maneuver 8, 9, these can move, simultaneously, in the same direction or in directions opposite. In addition, at the upper end 16 and / or lower 17 of the opening 3, this or these rods of operation 8; 9 can transmit their movement, through of an appropriate angle gear 18, 19, to rod sections operating 8A; 9A, extending along the sleepers upper 20 and lower 21.

We now refer to all of the figures in the drawings attached.

According to the invention, this locking fitting 1 comprises a device 1A for keeping the opening leaf 3 ajar by relative to the frame 6. In fact, such a device 1A is intended to cooperate with one of said operating rods, 8, 8A; 9, 9A. In this regard, as part of the embodiment illustrated in the figures and which will now be described, there is about cooperation of this device 1A with one operating rods 8A; 9A extending along the upper cross 20 and lower 21 of the opening 3. We especially note that in this embodiment illustrated in the figures, the locking fitting 1 comprises two devices 1A cooperating with each of the operating rods 8A; 9A being, precisely, at level of these upper 20 and lower 21 sleepers of opening 3. It is obvious that the present invention is not by no means limited to such a design and it could perfectly be considered an implantation of a device 1A at the level of the amount before 13 of this opening 3 in cooperation with the upright before 22 of the frame 6, if it was a opening swivel or Italian for example.

Furthermore, in order to facilitate the understanding of this description, reference is made, in the lines which follow, to a device 1A intervening between the sleeper upper 20 of the opening 3 and the upper cross 24 of the sleeping 6 knowing that, whatever its location and such as will become apparent from the description below, this device 1A can keep the same configuration, including for a right or left use on a window opening at the French in general for any type of opening not sliding.

Thus, this device 1A comprises, according to the invention and such that shown in Figures 3 to 10, a support 23 mounted fixed on the frame 6, in this case rebate on the cross upper 24 of the latter. On this fixed support 23 is mounted articulated one 25 of the ends of a compass arm 26 of which the opposite end 27 is provided with hooking means 28 which, as shown in the different figures 4, 7, 8 and 10 can take the form of a circular stud 29, of cross section T-shaped axial. Note, however, that other shapes may be considered in accordance with the function that these attachment means must perform 28. At this About, these must be able to slide inside a keeper 30 associated with a support 31 mounted integral in displacement of an operating rod, in this case, 8A, placed on the opening 3. In fact, the keeper 30 has a T-shaped groove 30A in which the stud 29 can move.

Ultimately, it is this mobility of the means of attachment 28 inside the keeper 30, on the one hand, and the length of the compass arm 26, on the other hand, not counting the positioning of device 1A with respect to the pivot axis 5 of the opening 3 which determines the amplitude of the mobility of this last relative to the frame 6 in the ajar position.

In this regard, it should be noted that this 1A device can advantageously serve as a limiter of the opening angle of the opening 3 with respect to the frame 6. In fact, there is that the closer this device 1A is to the pivot axis 5 of the opening 3 and more the length of the arm is increased compass 26, the more this opening 3 can pivot at an angle of significant rotation with respect to the frame 6. Everything in particular, it is, for example, possible to limit this 90 ° rotation angle so as to prevent the opening 3 cannot rest on a possible lateral spine corresponding to the staff and who could, otherwise, serve as a lever arm to this opening 3 for a forced action on the hinge fittings which connect it to the frame 6.

It is advantageous to note that the locking fitting 1 can be equipped with two 1A devices, one of which intervenes, actually, as a means of maintaining opening it in a slightly ajar position, while the other, placed closer to the pivot axis of the sash 3, limits the rotation of the latter when the first of these 1A devices is released.

The operation of such a locking fitting, as well equipped with two devices 1A will appear further in the description.

Figures 4 and 5 illustrate, on the one hand, in perspective and in exploded, and, on the other hand, in the form of a representation in elevation the arrangement made by the different elements composing the device 1A, precisely when the opening 3 is brought into such a ajar position. These figures 4 and 5, as well as FIGS. 7 and 8 also illustrate a method of realization of the means 32 allowing the connection of the support 31 at the end of an operating rod 8A, knowing that about, that this support 31 can also come to be inserted in a longer 8A operating rod. In these conditions, it is equipped with connection means 32, 32A to each of its ends 33, 34.

According to the invention, the attachment means 28 equipping the end 27 of the compass arm 26 are able to disengage of said keeper 30 following a displacement as a result communicated to support 31 by the operating rod 8A to which it is connected.

Thus, this keeper 30 comprises, at one of its ends 35, an opening 36 authorizing the engagement and release to through the latter, the stud 29 constituting the means hooking 28 in the T-groove 30A.

In fact, the locking mechanism 7, fitted to the window or analog 4, should be designed so that it is possible, a times the opening 3 unlocked, to give element 12, therefore at the operating rod 8A, at least two positions, one of which activates device 1A to authorize only a half-open of this opening 3 and the other of which generates free rotation or a larger amplitude rotation of this opening 3 by compared to frame 6, this, for example, to allow cleaning the exterior glass surface of a window.

Therefore, in one of these positions conferred on control element 12, it must result in the release of attachment means 28 relative to the keeper 30 and, in the other position, the engagement of these attachment means 28 in said strike 30.

Thus, if we take the case of a control element 12 under shape of a handle, we observe that this handle, when lowered, as shown in the figure 2, generates the locking of the door 3. While, brought back in a horizontal position, as illustrated in the Figure 6, the hooking means 28 are, as in the lock case, kept engaged in keeper 30 corresponding to device 1A authorizing only one opening opening limited 3. By continuing the movement communicated to this handle so as to bring it back into a position noted as illustrated in figure 9, it can result in sufficient displacement of the operating rod 8A to obtain the release of the attachment means 28 of said keeper 30 through its opening 36, allowing, finally, the free rotation of the opening 3 relative to the sleeping 6.

Assuming, however, that the locking fitting 1, has two 1A devices, one of which is located closer than the other of the pivot axis 5 of the opening 3, it can be expected that during a first rotation of the handle 12, we simply obtain the unlocking allowing the first of these 1A devices to play its role of maintain the opening 3 in a partially open position. During a complementary rotation of the hooking means 28 corresponding to this first device 1A are able to stand release from the striker 30, making, finally, this first device 1A inactive. However, the second device 1A, placed closer to the pivot axis 5 of the leaf 3 can, him, stay active. Thus, the opening 3 is able to open in large, while its rotation relative to the frame 6 remains limited. We can then imagine that a last rotation of handle 12 is possible which leads to the release of attachment means 28 relative to the keeper 30 of this second device 1A so that the angle of rotation of the opening 3 relative to the frame 6 is no longer limited by the fitting of lock 1, object of the invention.

In view of the above description, it can be seen that, at through lock fitting 1, conforming to the invention, it is possible to keep ajar a leaf, in particular, French, without there being risk for the occupants, the total opening of this opening being obtained only under the effect of a voluntary action and complementary to the user on the control element 12.

Note that the device 1 can receive, at the height of the support fixed 23, for example, retaining means 37, shown in the form of an elastic clamp in the attached drawings, even to hold the compass arm 26 in a position parallel to this fixed support 23 during an opening command complete opening 3. In fact, these means of restraint 37 avoid, when the device 1A is deactivated, that the arm of compass 26 does not pivot freely in the direction of the leaf 3 and, if necessary, opposes the closure of the latter.

Said retaining means 37, in the form of an elastic clamp, are shown in detail in Figure 10. So, they can be either fixed on the fixed support 23 or reported with the latter on the frame 6.

As shown clearly in Figure 2, the device 1 retains the same configuration, that it is located at level of upper crosspieces 20, 24, respectively, of the opening 3 and the frame 6 or at the level of their crosspiece lower. In this same figure 2 it is also visible that it suffices to turn this device 1 in one direction or in the other depending on whether the operating rod or rods 8, 8A; 9, 9A are moving in one direction or another or that the window opens to the left or to the right. In addition, this explains why the present invention can find its application in any type of non-sliding sash. It is obvious that point of view of the management of the manufacturing and storage of these locking fittings, in accordance with the invention, this standardization is of considerable interest.

Claims (8)

1. Locking fitting for a window, French window, door or the like (4), including, on the one hand, a locking mechanism, such as an espagnolette, including at least one operating rod (8, 8A ; 9, 9A) extending at least for a part in the fillister (10) of the leaf (3) and controlled in displacement by a driving mechanism (11) actuated by a control element (12), such as a handle, a key-operated cylinder or the like, and, on the other hand, at least a device (1A) for maintaining in a partially open position the leaf (3) of said window or the like (4), provided with struts (26) capable of connecting the sash-frame (6) to the leaf (3), this in order to limit the angle of pivoting of the latter with respect to this sash-frame (6), characterised in that this device (IA) is defined by a support (23) fixed to the sash-frame (6) and on which is mounted in a hinged way one end (25) of the struts (26) the opposite end (27) of which is provided with hooking-in means (28), such as a stud (29) or a roll, capable of sliding inside a keeper (30) associated with a support (31) mounted in a way integral in displacement with an operating rod (8A ; 9A) placed on the leaf (3), with a view to limiting the angle of pivoting of the latter with respect to the sash-frame (6), said hooking-in means (28) being capable of disengaging from said keeper (30) pursuant to a corresponding displacement of said operating rod (8A ; 9A) under the action of the control element (12) acting on the driving mechanism (11), with a view to a larger opening of the leaf (3).
2. Locking fitting according to claim 1, characterised in that the hooking-in means (28) are in the form of a circular stud (29) with a T-shaped axial cross-section.
3. Locking fitting according to claims 1 and 2, characterised in that the keeper (30) includes, on the one hand, a T-shaped groove (30A) in which can move the stud (29) and, on the other hand, an opening (36), at its one end (35), allowing the stud (29) to engage into and to disengage from the T-shaped groove (30A) of the keeper (30).
4. Locking fitting according to any of the preceding claims, characterised in that the support (31) includes, at least at its one end (33, 34), connecting means (32, 32A) allowing its connection with an operating rod (8A ; 9A).
5. Locking fitting according to any of the claims 1 to 4, characterised in that the support (31) includes, at each of its ends (33, 34) connecting means (32, 32A) that allow it to insert itself in an operating rod (8A ; 9A).
6. Locking fitting according to any of the preceding claims, characterised in that the device (1A) includes retaining means (37) capable of maintaining the struts (26) in a position parallel to the fixed support (23) when the hooking-in means (28) are released from the keeper (29).
7. Locking fitting according to any of the preceding claims, characterised in that the locking mechanism (7) is so designed that it is possible, after the leaf (3) has been unlocked, to impart to the control element (12) and, thus, to the operating rod or rods (8, 8A ; 9, 9A), at least two positions, one of which actuates the device (1A) so as to allow only a partial opening of the leaf (3) and the other one of which causes the disengagement of the hooking-in means (28) from the keeper (30) of this device (1A), with a view to a larger rotation of the leaf (3) with respect to the sash-frame (6).
8. Locking fitting according to any of the preceding claims, characterised in that it includes two devices (1A), the first one of which, when it is activated, ensures the maintaining of the leaf (3) in a partially open position with respect to the sash-frame (6) and the second one of which is arranged nearer to the axis of pivoting (5) of this leaf (3), allowing a larger opening, while limiting it, of the leaf (3) with respect to the sash-frame (6) after the first one of these devices (1A) has been de-activated, which corresponds to the disengagement of its hooking-in means (28) from the corresponding keeper (30).

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