EP0742333A1 - Stay for door, window or similar - Google Patents

Abstract

The door retainer for a door or window comprises a lever (18) whose upper end (19) is fixed by a pivot (21) which is itself mounted to slide in a groove (22) in the rebate of the door frame. The lower end of this lever (23) is intended to cooperage with a hook (24) mounted on the opening door panel. There is an elastic support mounted on the upper end of the lever (18) to act upon it. The lever itself has a symmetrical configuration w.r.t. its median vertical plane , and also includes an index device which ensures that the elastic support is able to urge the lever back to its vertical position. The structure of the lever is such that it is reversible.

Description

The invention relates to a stay for window, window or the like comprising a lever the upper end of which is fixed by means of an articulation pivot, itself mounted sliding in a groove on a support arranged in rebate on the amount of the frame or the opening, allowing said lever, on the one hand, to pivot about an axis parallel to the plane of the door, window or the like and perpendicular to said amount and, on the other hand, to slide parallel to the longitudinal direction of the latter in the groove, the lower end of this lever being able to cooperate with a latching member which can be operated by means of a control button mounted, as the case may be, on the leaf or the frame, elastic return means acting on this lever to bring its articulation pivot into abutment in the upper part of this groove.

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

Because of a growing feeling of insecurity, justified, moreover, by a constant increase in the number of burglaries and other acts of violence, one is more and more aware of the interest of protecting one's home by various systems of security. However, if it is possible to recognize, visually and by the use of appropriate devices, such as a peephole, a visitor ringing or knocking on a locked door, it is very difficult, under these conditions, to converse with the foreign person in order to know the object of his visit. In fact, for this it is necessary to unlock the door and to open it. However, at this point it is desirable that a second security system should come into operation to prevent a ill-intentioned visitors can enter the house without much difficulty.

For this purpose, it is customary to call in a cracker, the most common of which are chain systems. It is, in fact, a chain, one end of which is fixed, by means of a support, to the internal side of the front upright of the frame, while the opposite end comprises a locking stud intended for to cooperate with a keeper in the form of a buttonhole placed on the opening. Thus, after unlocking the door, the length of the chain limits the opening angle of the door.

It is also known of other types of stay-openers arranged as a surface on the internal side of the door or window. Thus, according to a design similar to the chain system described above, there is a spacer comprising an arm pivotally mounted on the amount of the frame and which, in the locked position, cooperates, in a sliding manner, with a hooking member placed on the 'opening. In this case it is indeed the length of the arm or, very precisely, the mobility of the latter relative to the attachment member which limits the opening angle of the door or window.

If such interlocks respond, in themselves, to the safety problem mentioned, they appear somewhat unsightly because of their surface mounting. In addition, this type of installation can cause problems in case of overlapping rebate.

In order to respond to these problems, we have imagined a cracker capable of taking up a position in the rebate of the door, window or the like.

In this regard, we know, very particularly from document US-A-5,048,880, a half-gate incorporating, substantially, the characteristics set out in the introductory part of this description. Thus, this spacer comprises a lever, the upper end of which is mounted, simultaneously, pivoting and sliding on a support which has just been placed in rebate of the front upright of the frame or of the opening corresponding to the door, window or similar. More specifically, this lever is rotatably mounted on a hinge pivot which is slidably disposed inside a groove formed, parallel to the longitudinal direction of the upright, inside said support.

We also note the presence of elastic return means intended to act on this upper end of the lever so as to bring back its articulation pivot, systematically in abutment in the upper part of said groove. In fact, this lever comprises, at its upper end and substantially offset laterally relative to its pivot axis, a drive finger on which act, said elastic return means. These consist of a helical spring arranged in a housing formed at the rear of the groove and which acts in compression, that is to say that on the upper end of this spring rests, ultimately, said drive finger. secured to the lever.

As for the lower end of the latter, it has an oblong opening intended to cooperate with a hooking member operable by means of a control button mounted, as the case may be, on the opening or the frame. . In the end, this hooking member, in the form of a locking bolt, is able to engage in this oblong opening of the lever when the latter is in position vertical rest and, therefore, when the door, window or the like is closed.

Such a spacer is only designed for application to the left or right of a door, window or the like. In particular, it will be observed that the action of the elastic return means on the lever is such that said elastic return means would be completely incapable of returning this lever to the vertical position if it tilted in a direction opposite to that normally provided. In fact, such a tilting in the opposite direction is made completely impossible by the provision of these elastic return means relative to said lever or by the configuration of the support itself.

Since none of the main parts of this stay can be recovered for a left and right application on an opening, it is advisable to design different parts for one and the other of these applications, which, well sure, makes this manufacturing more expensive besides that it follows a more important stock management.

Finally, in the frame of the stay as described in this prior document, the lever, in the vertical rest position, abuts against a rear edge extending perpendicularly to the plane of the support. In this way, in the event of a false maneuver by the user consisting in closing the opening while the latching member is in a position that is only partially projecting, this latching member abuts abruptly against the front edge of the lever and prevents closing of the door, window or the like. If the fact that the door or window cannot be closed does not in itself constitute a real problem, as it suffices for the user to erase the organ of attachment, the repetitive shocks that this ajar can undergo due to these erroneous manipulations, lead, in the long run, to its deterioration. In particular, they can be the cause of a deformation of the fastening member, the maneuver of which then becomes more difficult or even the loosening of the support relative to the amount on which it is fixed, which inevitably leads to opener malfunction.

• les moyens de rappel élastiques se situent dans le prolongement supérieur du levier ;
• celui-ci comporte une configuration symétrique par rapport à son plan médian vertical ;
• cet entrebâilleur comporte des moyens d'indexation assurant le rappel en position verticale du levier sous l'impulsion des moyens de rappel élastiques ;

ces caractéristiques agissant en combinaison pour autoriser la réversibilité dudit entrebâilleur pour un montage à gauche ou à droite sur le dormant ou, selon le cas, l'ouvrant.Ultimately, the invention aims to remedy all of the aforementioned drawbacks. To this end, it relates to a stay for door, window or the like, comprising a lever, the upper end of which is fixed by means of an articulation pivot, itself slidingly mounted in a groove, on a support arranged in rebate on the amount of the frame or the opening, allowing said lever, on the one hand, to pivot about an axis parallel to the plane of the door, window or the like and perpendicular to said amount and, on the other hand, to slide parallel to the longitudinal direction of the latter in the groove, the lower end of this lever being able to cooperate with an operable latching member by means of a control button mounted, as the case may be, on the opening or the frame, elastic return means acting on this lever to bring its articulation pivot into abutment in the upper part of this groove, characterized in that:

• the elastic return means are located in the upper extension of the lever;
• the latter has a symmetrical configuration with respect to its vertical median plane;
• this ajar comprises indexing means ensuring the return to the vertical position of the lever under the impulse of the elastic return means;

these characteristics acting in combination to allow the reversibility of said stay for mounting on the left or right on the frame or, as the case may be, the opening.

The advantages arising from the present invention consist essentially in that the stay, according to the invention, is reversible, that is to say that it can be mounted, both on the left and on the right, on an opening of door, window or the like. Finally, this makes it possible to halve the manufacturing cost of these half-openers, not to mention that it results in easier stock management.

In addition, the lever being able to switch on either side of its vertical rest position, it is also able to fade under the impulse of the latching member when the latter is unfortunately in position partially or totally protruding when closing said door or window.

• la figure 1 est une vue schématisée et en plan de l'entrebâilleur conforme à l'invention ;
• la figure 2 est une vue schématisée et en coupe partielle illustrant l'entrebâilleur monté en feuillure du dormant tandis que son levier coopère avec l'organe d'accrochage manoeuvrable par l'intermédiaire de moyens de commande se situant sur l'ouvrant ;
• la figure 3 est une vue arrière selon III-III de la figure 2 ;
• la figure 4 est une vue similaire à la figure 3 illustrant la position prise par le levier lorsque l'ouvrant est entrebâillé ;
• la figure 5 est une illustration en coupe selon V-V de la figure 4 illustrant, partiellement et en coupe le montant avant du dormant et de l'ouvrant.

The invention is described in more detail in the description which follows and accompanied by drawings corresponding, only, to an exemplary embodiment.

• Figure 1 is a schematic plan view of the brace according to the invention;
• Figure 2 is a schematic view in partial section illustrating the ajar mounted in the rebate of the frame while its lever cooperates with the operable latching member by means of control means located on the opening;
• Figure 3 is a rear view along III-III of Figure 2;
• Figure 4 is a view similar to Figure 3 illustrating the position taken by the lever when the opening is ajar;
• Figure 5 is a sectional illustration along VV of Figure 4 illustrating, partially and in section the front upright of the frame and the opening.

The present invention relates to a door 1 window, window or the like having been shown in different views in Figures 1 to 5 of the accompanying drawings.

Thus, this ajar 1 is more particularly intended to take a position in the rebate 8 of this door or window. In this regard, in the following description, we will limit ourselves to a presentation of the invention applied to a door insofar as it is, there, the use that will be made, most commonly , of such a ajar 1. However, it has been understood that the invention is not limited to such an application since it can find utility for any type of opening.

In addition, this ajar 1, arranged in rebate 2, is of particular interest when the opening 3 is partially overlapping the frame 4. More specifically, this opening 3 has, at the periphery, a flange 5 which is applied on the side internal 6 of the frame 4 in the closed position of said door.

Thus, the stay 1 comprises a support 7 mounted in rebate 8 of the upright 9 of the frame 4, perpendicular to the door shot 10. In this regard, this support 7 can be made integral by any suitable fixing means 11 of this amount 9 of the frame 4, such as screws, rivets or the like. In the accompanying drawings, an embodiment is illustrated, in particular, of these fixing means 11, in the form of screws 12 which, being accessible from the outside when the leaf 3 is ajar as shown in FIG. 5 , are made non-removable by means of rotation blocking means 13 accessible only from inside the house. By way of example corresponding to the embodiment illustrated in the figures, the screws 12 have their head 14 embedded in millings 15 arranged at the level of the support 7. In addition, a pin 16 is engaged in a perforation 17 machined in this support 7, perpendicular to the axis of the millings 15 while crossing the latter. Thus, after the engagement of the screws 12, said pin 16 is introduced into its perforation 17 by passing above the heads 14 of screws 12 preventing the latter from being unscrewed.

As already specified above, other solutions are, of course, conceivable and the invention is in no way limited to that presented.

The ajar 1 further comprises a lever 18, the upper end 19 of which is both mounted in an articulated and sliding manner on the support 7. Thus, this lever 18 is able to pivot about an axis 20 parallel to the plane 10 of the door while being perpendicular to the upright 9 of the frame 4. In addition, the articulation pivot 21 of the lever 18 is itself slidably mounted in a groove 22 arranged longitudinally and therefore vertically in the support 7 .

At its opposite lower end 23, the lever 18 is able to cooperate with a hooking member 24 operable by means of a control button or the like 25 mounted on the internal side 26 of the leaf 3.

According to a preferred embodiment illustrated in the accompanying drawings, the control button 25 acts, by means of an operating square 27, on a follower 28 located in a housing 29 embedded in the front edge 30 of the opening 3. Thus, under the influence of the rotation of the control button 25, the nut 28 attacks the latching member 24, in the form of a bolt coming to move in the plane of the opening 3 so to present themselves, as the case may be, in a projecting position or in a retracted position relative to said front edge 30 of this opening 3.

It should be noted that in the case of the fitting of the opening 3 of a cremone bolt or locking bolt comprising a headrest 31 extending over the entire height of this edge before 30 of the opening 3, the housing 29 can be made integral with this headrest 31, the latter comprising, moreover, an opening 32 allowing the passage of the bolt corresponding to the attachment member 24.

The latter is preferably of rectangular section and has a narrowing 33 in its part 34 capable of being projecting relative to the edge 30 of the opening 3. Thus, when this hooking member 24 comes to cooperate with the end 23 of the lever 18, more precisely, when its part 34 is engaged in the oblong opening 35 provided for this purpose in this end 23 of the lever 18 it fulfills the function of a button in a buttonhole.

Under these conditions, at the time of activating the stay-open device, the hooking member 24 and the oblong opening 35 of the lever 18 are in the same vertical alignment. Then, by opening the opening 3, the lever 18 swings around its pivot axis 20 while its lower end 23 pivots around the constriction 33 corresponding to the hooking member 24. The latter no longer being an extension of the oblong opening 35 corresponding to this lever 18, it cannot be removed voluntarily, either by direct action on said lever 18 or on the attachment member 24.

It can be seen that due to the constraints linked to a rebate mounting of the stay-open device 1, the vertical median plane 36 of the support 7 and of its lever 18 is not necessarily located in the median plane of the member hooking 24 once the opening 3 closed. Also, the oblong opening 35 is offset relative to this median plane 36. However, to allow, despite this, a reversibility of the stay-open device 1 and, therefore, its mounting to the left or to the right, the lever 18, preferably comprises a symmetrical configuration and, as a result, it has two oblong openings 35, 35A arranged on either side of the median plane 36 and capable of accommodating a fastening member 24.

This ajar 1 further comprises elastic return means 37 acting on the lever 18 to bring its articulation pivot 21 into abutment 38 in the upper part 39 of the groove 22. In fact, according to the invention, these means of elastic return 37 are located in the upper extension of the lever 18 and act on the upper end 19 of the latter or, preferably, on its articulation pivot 21. Advantageously, these elastic return means 37 are in the form of a helical spring arranged inside a housing 43 provided for this purpose in the upper extension of the groove 22 at the level of the support 7. Thus, one of the ends of this helical spring cooperates with hooking means 44 located in the bottom of the housing 43 while the opposite end is made integral with the upper end 19 of the lever 18, preferably from its articulation pivot 21 mounted to slide in the groove 22.

Under the action of these elastic return means and by adopting a position as shown in Figures 2 and 3, the lever 18 is, of course in a stable equilibrium position. This means that by deliberately removing the lever 18 from this vertical rest position, it can return to its original position under the influence of its own weight.

• lorsque le levier 18 est dans sa position de repos verticale, son extrémité 19 définit avec la butée 38 au moins deux zones de contact 41, 42 se situant symétriquement de part et d'autre du plan médian vertical 36 de ce levier 18 ;
• et lorsque ledit levier 18 est écarté de cette position de repos verticale, cette extrémité 19 définit avec la butée 38 une seule zone de contact 41 (ou 42) décalée par rapport au plan médian vertical 36 engendrant, au niveau de ce levier 18 et sous l'influence des moyens de rappel élastique 37, un couple de rappel en position de repos verticale jusqu'à ce que les deux zones de contact 41, 42 soient rétablies.

However, it can be provided, in combination, that this cooperation of the upper end 19 of the lever 18 with the stop 38 against which it is pushed under the influence of the elastic return means 37, contributes to the return to the vertical position of the lever 18. In fact, one can imagine that the reduced weight of the lever 18 or the friction encountered, whether with respect to the stop 38 or at the level of the articulation pivot 21, does not allow this lever 18 to systematically resume its substantially vertical position so that the opening 35 fitted to its end 23 is, from time to time, offset with respect to the latching member 24. The indexing means 40 making it possible to exclude this risk, consist of an end 19 of lever 18 and a stop 38 intended to cooperate with the latter thus determined:

• when the lever 18 is in its vertical rest position, its end 19 defines with the stop 38 at least two contact zones 41, 42 lying symmetrically on either side of the vertical median plane 36 of this lever 18;
• and when said lever 18 is moved away from this vertical rest position, this end 19 defines with the stop 38 a single contact zone 41 (or 42) offset with respect to the vertical median plane 36 generating, at this lever 18 and under the influence of the elastic return means 37, a return torque in the vertical rest position until the two contact zones 41, 42 are restored.

Consequently, whatever the action which pushes the lever 18 so as to move it away from its vertical position, as soon as this action disappears, said lever 18 systematically returns to its initial rest position. More particularly, in the event that, inadvertently, the user brings the latching member 24 into its projecting position even when the opening leaf 3 is open, when it closes said latching member 24 comes to push back the lever 18. Under these conditions, if it is desired to activate the stay 1, it suffices, firstly, to unlock the latching member 24 causing the lever 18 to return to its vertical rest position so that its oblong opening 35 is then positioned in front of said hooking member 24 which can, again, be locked.

In view of the foregoing description, it will be understood that if it is planned to mount the support 7 of the stay 1 on the amount of the frame 4, it is also possible to envisage a reverse arrangement, consisting in equipping the opening the support 7 on which is pivotally mounted and sliding the lever 18 which is able to cooperate with a hooking member whose mechanism is mounted on said upright 9 of the frame 4.

Claims (8)

Door, window or the like, comprising a lever (18), the upper end (19) of which is fixed, by means of an articulation pivot (21), itself slidably mounted in a groove (22 ), on a support (7) arranged in rebate on the upright (9) of the frame (4) or of the opening (3), allowing said lever (18), on the one hand, to pivot about an axis (20) parallel to the plane (10) of the door, window or the like and perpendicular to said upright (9) and, on the other hand, to slide parallel to the longitudinal direction of the latter in the groove (22) at the end lower (23) of this lever (18) being able to cooperate with a hooking member (24) operable by means of a control button (25) mounted, as appropriate, on the opening (3 ) or the frame (4), elastic return means (37) acting on this lever (18) to bring its articulation pivot (21) into abutment (38) in the upper part (39) of this groove ( 22), characterized in that: - The elastic return means (37) are located in the upper extension of the lever (18); - The latter has a symmetrical configuration with respect to its vertical median plane (36) - This ajar comprises indexing means (40) ensuring the return to the vertical position of the lever (18) under the impulse of the elastic return means (37); these characteristics acting in combination to allow the reversibility of said stay (1) for mounting on the left or right on the frame (4) or, as the case may be, the opening (3). Crank according to claim 1, characterized in that the elastic return means (37) consist of a helical spring arranged in a housing (43) provided for this purpose at the level of the support (7) and located in the upper extension of the groove (22). A stay according to claim 2, characterized in that one of the ends of the helical spring cooperates with hooking means (44) located in the bottom of the housing (43), while the opposite end is made integral with the end (19) of the lever (18). Crank according to claim 3, characterized in that the end of the helical spring intended to be made integral with the end (19) of the lever (18) acts on the articulation pivot (21) mounted to slide in the groove ( 22). Intermediate according to any one of the preceding claims, characterized in that the lever (18) comprises, at its lower end (23), two oblong openings (35, 35A) arranged on either side of the vertical median plane ( 36) and capable of accommodating the attachment member (24). Intermediate device according to claim 1, characterized in that the indexing means (40) consist of an end (19) of lever (18) and a stop (38) intended to cooperate with the latter, which are thus determined: - When the lever (18) is in its vertical rest position, its end (19) defines with the stop (38) at least two contact zones (41, 42) lying symmetrically on either side of the median plane vertical (36) of this lever (18); - And when said lever (18) is moved away from this vertical rest position, this end (19) defines with the stop (38) a single contact zone (41) or (42) offset from the vertical median plane (36 ) generating, at this lever (18) and under the influence of the elastic return means (37), a return torque in the vertical rest position until the two contact zones (41, 42) are restored. Intermediate according to any one of the preceding claims, characterized in that the support (7) is mounted in rebate (8) of the upright (9) of the frame (4) or of the opening (3) using fixing means (11) in the form of screws (12) made removable by means of rotation locking means (13) accessible from inside the house. Crank according to claim 7, characterized in that the support (7) comprises countersinks (15) in which the heads (14) of the screws (12) are intended to be embedded, while the means for locking in rotation (13 ) of these screws (12) consist of a pin (16) engaged in a perforation (17) machined in this support (7), perpendicular to the axis of the millings (15) while crossing the latter, so that said pin (16) passes over the screws (12) preventing them from being unscrewed.

Images