EP0805250B1 - Stay for door, window or the like - Google Patents

Description

The invention relates to a stay for window, French window or the like equipped with a locking mechanism, such than a bolt or bolt lock associated with a leaf and working on at least one locking member capable of cooperate with a keeper secured to the sleeping frame.

The present invention will find its application in the field of the building hardware and, in particular, in the frame of doors or windows with two leaves.

In the past, the ajar of two-person windows so-called wolf mouth doors, had a number advantages that are unfortunately no longer found in the frame of current doors or windows with rebates.

More specifically, these so-called wolf mouth windows include a leaf equipped with a locking mechanism of the type reverse gear lever. So, such a lever, usually affixed on the inside of the front upright of the leaf, controls movement, in opposite directions, of two rods whose ends are intended for insert, in the locked position, into strikes arranged on the upper and lower cross member of the frame sleeping. This leaf, thus equipped with the locking mechanism, comprises, in rebate, a groove in which is intended to engage a boss arranged in the rebate of the upright before the other window sash. It is thus understood that for lock the latter, the two leaves must be closed simultaneously without which you don't get nesting rebates.

As for the half-opening of such a wolf-mouthed window, it is obtained by locking the leaf equipped with the locking while wedging the boss located at the front edge of the other leaf, between the internal face of the front upright of the locked leaf and the branches of the stick handle through which the user controls said locking means. We understand that in this position and while being ajar, each of the leaves of this wolf mouth window is perfectly immobilized preventing their unexpected opening, or even, access from the outside, with the stick handle allowing the control of locking means.

Such a simple solution is not applicable to windows with rebates which are more topical. Also, we have envisaged for the half-opening of the latter, solutions more complex of the tilt-and-turn combination opening type. So through locking mechanisms and of complex joints, such windows have a opening which not only pivots normally around an axis vertical, but, in addition, is able to rotate, partially, around a horizontal axis, substantially materialized by its lower crosspiece, to put itself in a ajar position.

We also know, the half-openers who present themselves in the form of an accessory device which can be defined like a latch affixed to the lower cross member of the frame and intended to cooperate with a specific keeper mounted on the lower cross member of an opening. Such a ajar is in particular described in document FR-A-2,699,955. The drawbacks arising from this are, of course, the necessity, for the user to intervene on another mechanism of lock than those that usually allow it to close the window or the like. Therefore, there is, in somehow, duplicate of these locking means. In in addition, being affixed, applied to the internal face of the frame dormant, these latches, of the latch type, are particularly unsightly.

It is also known, from document EP-A-0.560.017, a cremone bolt or bolt-lock fitted with a crankshaft. All in particular, the cremone bolt or locking bolt has a locking mechanism on which the user acts by means a handle, this in order to control the movement of the operating rods extending along the upright front of a window sash or the like. These rods of operate constitute locking members and their free end, respectively upper and lower, is intended to cooperate with strikes placed on the wall the upper and lower cross member of the frame. More particularly, in the locked position, said ends of these rods engage in said strikes. Otherwise, i.e. under the effect of a angular displacement communicated to the handle, the ends operating rods come out of the keepers to allow leaf opening.

In reality, this locking mechanism and finds, more particularly, its application in the field tilt-and-turn windows. So, through the mechanism locking and communicating to the handle a first about a quarter-turn rotation, starting from the locking position, said operating rods are put in a fully unlocked position allowing leaf opening by pivoting around an axis of vertical rotation. Continuing the rotational movement previously communicated to the quarter turn handle additional, said operating rods are put in an intermediate position between the locking position and the unlock position. This brings the rod lower maneuver to cooperate with the strike on the frame while the upper rod, while being released from its keep at it, is kept engaged in an oblong opening formed in a rod pivotally mounted on said frame sleeping. This allows the leaf to swing inwards by pivoting about a horizontal axis of rotation materialized by the lower crosspiece. This switchover is limited in amplitude through said link in which remains inserted the end of the upper rod. We note, in brackets, that such a tilting around a horizontal rotation axis of the leaf cannot be possible that by using specific means of articulation connecting said leaf to the frame. he is also necessary that, depending on the position given to said handle, one or the other of the leaf opening modes is authorized.

As for the link, provided with the oblong opening in which engages the end of the rod, it is subjected to elastic return means tending to bring, systematically, in a plane parallel to the frame sleeping. Therefore, it only deviates under the influence of the weight of the sash when it tilts towards inside the house. Furthermore, there is nothing to prevent this. the window bangs against the frame in the event of a draft or pressure on the inner surface of the door. Indeed, the rod light in this solution is dictated by the kinematic and therefore cannot block the end of the rod being in a partially locked position, not engaged in the strike on the frame.

The object of the present invention is to remedy all of the aforementioned drawbacks, this through a spacer which, while being simple in design and subject to independent manufacture of the locking mechanism, is even to keep a leaf in the ajar position during of a command exerted on said locking mechanism. Through therefore, we find the spirit of the wolf mouth window without repeating, of course, the constraints and without, for elsewhere, complicating, however, the mechanism of locking.

The invention as characterized in claims, solves the problem and consists of a window, window-door or the like, fitted a locking mechanism, such as a cremone bolt or cremone bolt associated with a leaf and working on less a locking member capable of cooperating with a keeper secured to a sleeping frame, characterized by the fact that it includes a keeper intended to cooperate with a locking activated by the locking mechanism locking, this strike being associated with a link articulated on a support integral with the sleeping frame, said rod being brought into a first position under the impulse of elastic return means, this in order to keep the leaf ajar when the said lock is brought into the locked position so that cooperate with said strike associated with the link and in a second position when closing the leaf and against the action said elastic return means, authorizing said locking member to cooperate with the corresponding keeper on the sleeping frame.

Advantageously, according to the invention, this spacer is rebate position of the window, French window or the like, substantially to the right of a locking member intended to cooperate with a keeper fitted at the level of the sleeping frame.

In particular, this ajar will find its application for fitted double-leaf windows, as as locking mechanism, a lever or lever-bolt provided with at least one operating rod, the end of which constitutes a locking member capable of cooperating with a keeper fixed to the frame.

The advantages obtained thanks to this invention consist in that that this ajar arranged in the window rebate or similar, does not constitute any aesthetic discomfort, or even mechanical, since not only does it require no modification of the locking mechanism but, moreover, it cooperates with a locking member dependent on this mechanism so the tilt control is similar to that allowing the opening or closing of the window, French window or the like. In addition, the presence of elastic return means pushing the rod back into its first position allows the recognition of a hard point at moment to close the leaf indicating to the user, wishing half open this leaf, now is the time actuate the locking mechanism.

• La figure 1 est une représentation schématisée et en élévation d'une fenêtre à double vantaux équipée d'un entrebâilleur conforme à l'invention.
• La figure 2 est une représentation schématisée et en plan de l'entrebâilleur.
• La figure 3 est une représentation en élévation et en coupe de l'entrebâilleur représenté dans la figure 2.
• La figure 4 est une représentation schématisée partielle et en coupe d'une fenêtre analogue à celle représentée dans la figure 1 et illustrant l'entrebâilleur dans sa position active, maintenant entrebâillé le vantail équipé du mécanisme de verrouillage.
• La figure 5 est une vue analogue à la figure 4 illustrant la position prise par l'entrebâilleur lorsque la fenêtre est refermée.

The invention is set out in more detail in the description which follows, accompanied by drawings relating to an exemplary embodiment.

• Figure 1 is a schematic representation in elevation of a double-leaf window equipped with a ajar according to the invention.
• Figure 2 is a schematic and plan view of the stay.
• FIG. 3 is a representation in elevation and in section of the bracing device represented in FIG. 2.
• Figure 4 is a partial schematic representation in section of a window similar to that shown in Figure 1 and illustrating the stay in its active position, now ajar the leaf equipped with the locking mechanism.
• Figure 5 is a view similar to Figure 4 illustrating the position taken by the stay when the window is closed.

The present invention relates to a spacer 1 more particularly shown in detail in Figures 2 to 5 and for a window or the like. In this regard, as example application it has been represented in figure 1 a window 2 with two leaves 3, 4, pivotally mounted around vertical axes of rotation 5, 6 on a fixed frame 7. It It is obvious that the present invention is not limited to the application of the ajar device 1 to such particular window 2, since it can also be associated with doors or windows with only one leaf, with vertical axis of rotation or not.

It has also been shown, in this figure 1 and so shown schematically, a locking mechanism 8 associated with one of the leaves 3 and defined, preferably, by a cremone bolt or cremone bolt 9. Thus, this includes a mechanism for command 10 on which the user intervenes via a handle (not shown) to control movement at least one operating rod 11, 12. This or these the latter may constitute, in themselves, locking insofar as they have one end 13, 14 able to cooperate with a keeper 15, 16 secured to the window frame 7 of window 2.

The other leaf 4, can be kept closed, simply, by leaf 3 due to the overlap of their respective rebate 17, 18 at their upright before 19, 20 which come to join, substantially, in the plane vertical median of window 2. It is obvious that even in these conditions, this leaf 4 can be equipped with a 8A auxiliary locking mainly for the benefit of maintain said leaf 4 in the closed position, while the other leaf 3 is open. Such locking mechanisms auxiliaries 8A can be in the form of latches 21 arranged in rebate 18 of the upright before 20 and cooperating with a keeper 22 at the frame 7.

As for the spacer 1 proper, it comprises, him also, a keeper 23 intended to cooperate with a body of locking actuated by the locking mechanism 8, 8A. In the context of the embodiment more particularly illustrated in Figure 1, the locking member with which is intended to cooperate with this keeper 23 of this stay 1 consists of one end 14 of one of the rods of operation 12.

In fact, it should be observed that this strike 23 of the stay 1 is associated with a link 24, one of which end 25 is mounted articulated on a support 26 rendered secured to the frame 7.

To return to the more specific case represented in the various figures of the attached drawings, the support 26 is mounted in rebate of the sleeping frame 7, preferably at level of the upper or lower cross member 27 of this latest. In such a configuration, the link 24 pivots, relative to the support 26, around a vertical axis perpendicular 28.

This link 24 is subjected to return means elastic 29 tending to drive it in rotation around axis 28 and push its free end 30 in a direction which is that corresponding to the direction of opening of the leaf 3 that the stay-opener aims to maintain ajar. Thanks to stop means 31, the rotation of the rod 24 relative to the support 26 is limited so that the elastic return means 29 bring said link 24 in a first position 32 in which it forms an angle 33 well defined with respect to the plane of the window. In such angular position, the strike 23, associated with the link 24 and which is presented here in the form of a simple opening, can receive a locking member corresponding to the locking mechanism 8. According to the embodiment, this opening corresponding to the keeper 23 is able to receive, in this position, the end 14 of the rod operation 12. If leaf 3 is now ajar so that this end 14 of the operating rod 12 is located in the extension of said strike 23 it suffices actuate the locking mechanism 8 so that this leaf 3 either, then, perfectly maintained in this position ajar.

It should be observed that, according to the invention, the keeper 23 of the stay 1 comes to position to the right of the organ of locking, here the end 14 of the operating rod 12, as soon as the leaf 3 or, more precisely its rebate abuts against the free end 30 of the rod 24 occupying its first position 32.

This rod 24 is still able to occupy a second position 34 which corresponds to the situation represented in the Figure 2, i.e. when leaf 3 is closed. So when it closes it, it comes, everything first, in abutment against the free end 30 of the link 24, then, continuing the movement, this link 24 is pushed back, under the impulse of said leaf 3 and against the action elastic return means 29 so as to be located, substantially, in the plane of window 2.

Said keeper 23 is defined such that in this second position 34 of the rod 24, it authorizes the passage of the locking member to the right of which it comes be located in order to allow this locking member to cooperate with the keeper 16 disposed on the sleeping frame 7. By therefore and as illustrated in FIGS. 3 and 5, said rod 24 is interposed between said keeper 16 formed at the level of the frame 7 and the rebate of the leaf 3. A note that in this position, this link 24 still comes, substantially, superimpose on its support 26.

In view of the above, it is therefore understood that, from the closed position, to partially open the leaf 3, it is necessary, first of all, to unlock the mechanism lock 8 and allow the link 24 to be released so that it can, under the impulse of the means of recall elastic 29, put in its first position 32, offset angularly with respect to the plane of the window or the like. While holding, then, the leaf 3 in abutment against the free end 30 of this rod 24, it is necessary, finally lock the locking mechanism again 8. Similarly, starting from an open position of the leaf 3 and to partially open it, you must first close it until its rebate meets the end free 30 of the rod 24. This is felt in the form of a hard point by the user due to the constraint he should be applied to this leaf 3 to continue progress in this direction of closure, this due to the resistance provided by elastic return means 29 acting on said link 24.

It will be noted, in this regard, that with regard to the stop means 31 intended to limit the angle of rotation of the rod 24 on its support 26 under the action of the means of elastic reminder 29, they are presented, preferably, in the form of a lug 35 secured to the end 25 of said rod 24 beyond the articulation axis 28 and extending perpendicular to the latter, towards support 26. In addition, it includes a cutout transverse 36 intended to accommodate this lug 35 and the depth 37 is determined so as to limit the amplitude freedom of movement of lug 35 when ordering rotation of the rod 24. This results, of course, a limitation of the angular displacement of said rod 24. As for the elastic return means 29, they can borrow any configuration. In particular, they can be in the form of a coil spring mounted transversely in the thickness of the support 26 and acting on said link 24 as illustrated in the drawings corresponding to a preferred embodiment.

It should be noted that the width 38 of the plate defining the support 26 as well as the width of the link 24 are a function of the width available in the rebate of the frame frame 7 at which the stay 1 is intended for to take a position. However, due to tolerances in the material and clearances existing between leaves 3, 4 and said sleeping frame 7, there may be situations where, at moment of closing said leaf 3 and under the impulse of this last, the link 24 and, in particular, its keeper 23 do not lie, exactly, in the extension of the strike 16 formed at the level of the sleeping frame 7. It is evident, in these conditions, that the locking member, the more particularly the end 14 of the operating rod 12, cannot pass through this keeper 23 corresponding to the link 24 in order to cooperate with said keeper 16 on the sleeping frame 7.

To avoid this, said rod 24 is equipped with means 39 to make up for play at the rebate between the leaf 3 and the frame 7 so that the keeper 23 of this rod 24 is, systematically, in the correct position. These means 39 are presented, according to a first mode of embodiment illustrated in FIG. 2, in the form of one or more elastic blades 40 whose stiffness is substantially greater to the stiffness of the elastic return means 29 and equipping the edge before 41, oriented towards leaf 3, rod 24. Consequently, when closing the leaf 3, this instead of resting directly on the rod 24, pushes it through its or its elastic blades 40. These are thus able to compress, once the rod 24 abuts against the shoulder of the rebate of the frame 7 to compensate persistent play with respect to leaf 3. In fact, the mounting is so designed that in this position in abutment of the rod 24 its keeper 23 is located perfectly, to the right of the keeper 16 on the frame 7 intended to accommodate the end 14 of the operating rod 12. According to another embodiment, more particularly visible in the Figure 4, these means 39 can take the configuration a simple stop mounted adjustable or not on the leaf 3 and ensuring the positioning of the rod 24 relative to the keeper 13 on the frame 7 when closing said leaf 3.

If, in the context of the embodiment described above and illustrated in the drawings, the spacer 1 takes position, more particularly, in the rebate of the upper crossmember of the sleeping frame 7 so as to cooperate with a body lock consisting of one end 14 of rod maneuver 12, it is understood, of course, that this spacer 1 is also likely to be located in any other place of said frame 7 and, in particular, in the rebate of the upright before or, of course, in the rebate of the lower crossmember. he can thus cooperate with a locking member which, in locking position, is protruding, as the case may be, relative to the front pillar 19 or the lower cross member of the leaf 3 corresponding. In addition, the keeper 23 can also, be adapted according to this locking member that it is intended to accommodate, whether to maintain the leaf in the ajar position or in the closing. In particular, it can be designed to accommodate as a locking member a roller as it stands equipped with multi-point locks or locks.

In all cases, we understand the very special interest of this ajar to the extent that, on the one hand, it can take a position in the rebate of the door frame 7 of the door, window or the like so that it does not in any way harm the aesthetics of the latter. In addition, while avoiding any modification of the structure of the locking mechanism 8, its entry into action is dependent on a command exercised on the operating handle of this locking mechanism 8. It this results in particularly convenient use.

Claims (10)

1. Casement stay for a window, French window or the like provided with a locking mechanism (8), such as an espagnolette or espagnolette-lock, associated with a leaf (3) and acting on at least one locking organ (14) capable of co-operating with a keeper (16) integral with a sash-frame (7), characterised in that it includes a keeper (23) aimed at co-operating with a locking organ (14) actuated through a locking mechanism (8), this keeper (23) being associated with a connecting rod (24) hinged on a support (26) integral with the sash-frame (7), said connecting rod (24) being brought into a first position (32) under the action of springy restoring means (29), this with a view to maintaining the leaf 3 partially open when said locking organ (14) is brought into a locked position so as to co-operate with said keeper (23) associated with the connecting rod (24), and into a second position (34) when closing the leaf (3) and against the action of said springy restoring means (29), authorising the co-operation of said locking organ (14) with the corresponding keeper (16) on the sash-frame (7).
2. Casement stay according to claim 1, characterised in that it is arranged in the fillister of the window, French window or the like (2), substantially in front of a locking organ (14) aimed at co-operating with a keeper (16) provided for at the level of the sash-frame (7).
3. Casement stay according to any of claims 1 and 2, characterised in that, in its second position (34), the connecting rod (24) is substantially superposed to its support (26), so as to be located in the plane of the window, French window or the like (2) while being interposed between the fillister of the leaf (3) and the keeper (16) which the locking organ (14) is aimed at co-operating with.
4. Casement stay according to claims 1 to 3, characterised in that the keeper (23) is formed of a through-hole at the level of the connecting rod (24) of this keeper (23), which is positioned in front of the keeper (16) of the sash-frame (4) when the connecting rod (24) is brought into its second position (34), authorising the co-operation of the locking organ (14) with this keeper (16) through said opening forming the keeper (23) of the casement stay (1).
5. Casement stay according to claim 1, characterised in that the springy restoring means (29) cause the connecting rod (24) to rotate with respect to its support (26) so as to push back the free end (30) of said connecting rod (24) in a direction that corresponds to the direction of opening of the leaf (3), this rotation being limited thanks to stop means (31), so that this connecting rod (24) defines a well-defined angle (33) with respect to the plane of the window, French window or the like (2).
6. Casement stay according to claim 5, characterised in that the stop means (31) are in the form of a pawl (35) integral with the end (25) of the rod (24), beyond its hinging axis (28), and extending, perpendicular with respect to the latter, towards the support (26), which includes a transversal cut-out (36) receiving this pawl (35) and the depth (37) of which is determined as a function of the authorised angular displacement of said connecting rod (24).
7. Casement stay according to claim 2, characterised in that the width (38) of the plate defining the support (26) as well as the width of the connecting rod (24) are determined as a function of the width available in the fillister of the sash-frame (7) at the level of which the casement stay (1) has to be positioned.
8. Casement stay according to any of claims 2 and 7, characterised in that the connecting rod (24) includes means (39) for compensating for the backlash, at the level of the fillister, between the leaf (3) and the sash-frame (7), with a view to making sure the keeper (23) of this connecting rod (24) is arranged in front of the keeper (16) when closing the leaf (3).
9. Casement stay according to claim 8, characterised in that the means (39) are in the form of one or several springy blades (40) the stiffness of which is substantially higher than that of the springy restoring means (29) and provided on the front edge (41), oriented towards the leaf (3), of the connecting rod (24).
10. Casement stay according to any of the preceding claims, characterised in that the locking organ which it has to co-operate with is substantially formed by an end (14) of the operating rods (12) of the locking mechanism (8) in the form of an espagnolette or espagnolette-lock associated with a leaf (3).

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