FR2821877A1 - Cremona lock, for window or door bay divider, includes lock with engaging roller cooperating with latching blade - Google Patents

Abstract

The Cremona lock has a lock (4) formed with an engaging roller (6) sliding with respect to a head (9) and cooperating with a keeper (12) on the outer frame (3). The lock has a blade (14) with latches (15) to cooperate with the roller to move it when actuated by the lock (4) between inactive and active positions. The blade has a latch finger (18).

Description

<Desc / Clms Page number 1>

 The invention relates to a stay for door leaf, French window or similar equipped with a locking fitting, such as a cremone bolt, acting on at least one locking member in the form of a roller mounted to slide in front of 'A headrest and able to cooperate, in the locked position, with a keeper arranged in correspondence on the frame or on a leaf adjacent to this door, window or the like.

 The present invention will find its application in the field of building hardware and relates, in particular, to devices intended to maintain a leaf of a door or window in a ajar position, while being secure.

 Through document FR-A-2.734. 303 there is already known a parting device for window, French window or the like with two leaves. In particular, one of these leaves is fitted with a locking fitting, of the cremone bolt or cremone bolt type, acting on at least one operating rod extending along the front upright of this leaf and one end of which is suitable to cooperate with a keeper arranged in the rebate on the upper or lower cross member of the frame.

 In fact, the ajar device is defined by at least one blade mounted in the rebate of the second leaf and comprising a part extending above the first leaf and at the level of which are formed two openings capable of receiving the end. of the operating rod. Thus, one of these openings is located to the right of the strike on the frame when the two leaves are closed. As for the second opening, this end of said maneuvering rod is able to engage there when the two leaves are slightly ajar.

 It is clearly understood from the foregoing description that the half-open device known from document FR-A-2.734. 303 can only be applied to doors or windows with two leaves.

 For this, we have already imagined a spacer which is fixed in rebate on the frame of the door or window through a suitable fixing plate. On this

<Desc / Clms Page number 2>

 the latter is pivotally mounted, following a predefined angular travel, a link subjected to the action of elastic return means tending to push it back into the half-open position, that is to say spaced apart from the plane of said door or window . Furthermore, the end of this connecting rod comprises a slot with which the free end of a maneuvering rod coincides which, in the locked position, is likely to be protruding, as the case may be, through the upper or lower cross member of the leaf to ajar.

 In short, after unlocking the cremone bolt, the leaf is brought into a half-open position, possibly under the impulse of the elastic return means acting on the link of the stay. At this time, said cremone bolt can be returned to its locked position, resulting in the engagement of the end of the rod in the opening at the end of the link.

 If such a stay-open system proves to be simple and particularly practical to operate, the fact remains that when the leaf is open, the link of this stay-opener is brought in, under the action of elastic return means, in a projecting position relative to the plane of the sleeping frame so that one can hang on unexpectedly.

 It will be noted, in particular, that it is difficult to equip such known ajar doors or windows which are currently lacking. Indeed, the adjustment and installation of the constituent elements of this spacer require, very often, the intervention of a qualified operator.

 The present invention is therefore intended to provide a solution to the aforementioned drawbacks through a stay which, even the leaf of the open door or window, does not define any projecting part, whether at the periphery of the frame dormant or said leaf. This ajar remains, however, dependent in its operation, the locking mechanism fitted to the door or window, in the sense that it is through this locking mechanism that it can be made active.

<Desc / Clms Page number 3>

 Furthermore, one of the features of the present invention consists in that this spacer is capable of fitting, a posteriori, a door or window without it being necessary, however, to call on a qualified operator, taking into account that this stay can be attached to a leaf without it being useful to carry out any machining at the level of the latter or of the locking fitting with which it is equipped.

 To this end, the invention relates to a stay for door leaf, French window or the like equipped with a locking fitting, such as a cremone bolt, acting on at least one locking member in the form of a roller sliding at - in front of a headrest and able to cooperate, in the locked position, with a keeper arranged in correspondence on the sleeping frame or on an adjacent leaf of this door, window or the like, characterized in that it is defined by a blade comprising fastening means provided capable of cooperating with at least one roller for its translation control, under the impulse of the mechanism of the locking fitting, between an inactive position and an active position in which said blade comprises a finger attachment, offset in the direction of the fixed frame relative to the plane of said leaf and provided capable of cooperating with a keeper normally intended to receive a roller in the leaf locking position on said sleeping frame.

 In short, one comes to hang, on at least one of the rollers of the locking fitting, the stay which thus takes its movement on this roller to reach, from a normal unlocking and opening position of the leaf, a locking position in which this leaf is kept slightly away from its sleeping frame. Furthermore, this half-lever takes advantage of the keeper with which is normally brought to cooperate, in the leaf closed position, the roller ensuring the transmission of movement. Thus, the adaptation of such a spacer does not require any recovery at the level of said sleeping frame.

 According to another particular feature of the invention, the blade corresponding to the stay-open device, apart from its attachment means intended to provide power take-off at a

<Desc / Clms Page number 4>

 roller, cooperates with guide means attached to the faceplate of the locking fitting.

 Advantageously, these guide means are attached to this headrest through the fixing screw which makes it possible to make this integral with the joinery.

 According to another particular feature of the invention, guide means are associated with the stay-open device and / or the keeper with which the hooking finger is able to cooperate in order to guide the latter to reach the or one half-open positions of the leaf.

 The advantages which follow from the present invention consist in that the spacer is substantially in the form of a single piece, of very simple design, with which any type of leaf comprising a locking fitting can be fitted as standard or retrospectively. , such as a cremone bolt, acting on at least one locking member in the form of a roller provided capable of cooperating with a keeper formed in the frame of said door, window or the like.

 Furthermore, through the means provided capable of guiding the latching finger to reach one or the other half-open position of the leaf, we have just responded to a problem of false maneuvering which could occur when a user seeks , specifically, to give a door or window leaf a partially open position under the action of the fitting normally used to lock the latter.

 Other objects and advantages of the present invention will emerge during the description which follows, relating to an embodiment, given by way of non-limiting example.

 The understanding of this description will be facilitated by referring to the attached drawings in which: FIG. 1 is a diagrammatic and perspective representation of a window whose leaf is ajar and on the amount of which appears a spacer according to the invention;

<Desc / Clms Page number 5>

la figure 8 est une représentation similaire de la figure 4 correspondant à un autre mode d'exécution de l'entrebâilleur ; la figure 9 correspond à un mode de réalisation où la gâche peut venir s'engager entre le doigt d'accrochage de l'entrebâilleur et la crémone ou crémone-serrure, ceci pour permettre au vantail d'occuper une seconde position entrebâillée ; les figures 10,11 et 12 illustrent le positionnement du galet par rapport à la gâche, après déverrouillage et avant engagement progressif du doigt d'accrochage dans cette dernière ; la figure 13 est là encore une représentation similaire à la figure 4 ou la figure 8, le doigt d'accrochage étant de section réduite pour un gain de place de l'entrebâilleur en feuillure de la porte ou fenêtre. Figure 2 is a schematic representation in section of the front uprights, respectively, of the frame and the window sash in the closed position; Figure 3 is a representation similar to Figure 2, illustrating these amounts before the frame and the leaf when the latter is ajar; Figure 4 illustrates schematically and partially the locking fitting corresponding to a cremone bolt through which it is taken movement by the stay, here shown in the active position, that is to say locking the leaf relative the sleeping frame; Figure 5 is a representation similar to Figure 4, the stay being illustrated in an inactive position corresponding to the unlocking position of the locking fitting; Figure 6 is a schematic representation in plan, side rear side view of the upper plate corresponding to the guide means of the stay on the headrest; Figure 7 is a schematic elevational view in partial section of the rear plate of these guide means;

Figure 8 is a similar representation of Figure 4 corresponding to another embodiment of the opener; Figure 9 corresponds to an embodiment where the keeper can come to engage between the latching finger of the stay and the lever or lever-lock, this to allow the leaf to occupy a second position ajar; Figures 10,11 and 12 illustrate the positioning of the roller relative to the keeper, after unlocking and before progressive engagement of the latching finger in the latter; Figure 13 is again a representation similar to Figure 4 or Figure 8, the latching finger being of reduced section for saving space of the stay in rabbet of the door or window.

 As shown in Figure 1, the present invention relates to the field of fittings for door, window or the like.

<Desc / Clms Page number 6>

 Thus, in this FIG. 1 has been illustrated a window 1 comprising a leaf 2 pivotally mounted on a sleeping frame 3, knowing, in this regard, that the present invention is in no way limited to a carpentry of the door or window type comprising only a single leaf.

 Furthermore, this leaf 2 of the window 1 is provided with a locking fitting 4, very particularly a cremone bolt, making it possible to act, through a maneuvering rod 5 visible in FIGS. 3,4 and 5, on at least one locking member in the form of a roller 6 projecting into the rebate 7 of this leaf 2.

 Note that the translational control of the operating rod or rods 5 is obtained through an appropriate control mechanism on which the user can act, in particular by means of a control handle 8.

 In the case illustrated in FIG. 1, this locking fitting 4 in the form of a cremone bolt takes position at the level of a notch in the rebate 7 of the leaf 2, this notching being closed by means of a headrest 9 housing the maneuvering rod or rods 5. These extend, in particular along the front upright 10 of this leaf 2.

 To return to the locking member in the form of a roller 6 slidably mounted in front of the faceplate 9, it is provided to engage, in the locked position, in a keeper 12 which, here, receives the frame 3 knowing, precisely, that this striker 12 can still come to equip an adjacent leaf.

 In particular, the present invention relates to a stay 13 which can be equipped with such a door leaf 2, window or the like 1. This stay 13 is defined by a blade 14 comprising, on the one hand, hooking means 15 provided capable of cooperating with at least rollers 6 to ensure its movement under the impulse of the latter and therefore of the control mechanism of the locking fitting 4, in particular from an inactive position 16, visible in FIG. 5 and corresponding to the unlocking position of this locking fitting 4, in a position

<Desc / Clms Page number 7>

 active 17 shown in FIG. 4 corresponding, conversely, to the locking position of this locking fitting 4.

 To return to the hooking means 15, these can be, as shown in FIGS. 4,5 and 9 to 13, in the form of a hook 15a which this blade 14 includes and whose opening is of section adjusted to the roller 6.

 In the context of another embodiment illustrated in FIG. 8, these hooking means 15 can be defined by an eyelet 15b at the level of said blade 14 allowing its engagement on a roller 6 in the manner shown in FIG. 8 .

 Furthermore and as illustrated in these various figures, such a hook 15a or an eyelet 15b can be provided at its internal periphery 15c with tongues or bosses 15d capable of being inserted under the head of the roller 6, in fact between this last and the headrest 9, to provide real attachment of the blade 14 on said roller 6.

 In the active position 17 of the stay-open device the blade 14 comprises, offset from the plane 19 of the leaf 2 in a direction opposite to the opening direction 20, a latching finger 18 coming to engage in the keeper 12 normally provided to accommodate a roller 6 when the leaf 2 is not ajar, but closed on said frame 3.

 Note that the offset existing between the latching finger 18 and the plane 19 of the leaf 2, which we imagine to pass through the axis of the roller 6, corresponds, at most, to the distance 21 separating, in rebate, the 'axis of this roller 6 relative to the outer covering flange 22 of the frame 3, distance 21 measured when the leaf 2 is closed on the latter.

 Referring, in particular, to FIG. 13, it can be seen that there is shown a hooking finger 18 of section 18 ′ lower than the opening 12 ′ in the keeper 12 which, of course, has as a consequence a narrower width of the blade 14 corresponding to the stay 13 to allow it to adapt to a smaller distance 21, without this being to the detriment of the opening provided by this stay 13.

<Desc / Clms Page number 8>

élément 18''peut se présenter sous forme d'un capuchon en caoutchouc d'où s'étendent une pluralité de lamelles ou picots souples. However, to avoid that in this ajar position as shown in FIG. 13 and corresponding to the engagement in the keeper 6 of the hooking finger 18, the latter, being of reduced section 18 ′, cannot move freely in this keeper 6, in particular under the effect of the wind, on this attachment finger 18 can be engaged a flexible damping element 18 '' shown in broken lines in this figure 13. Such a

18 '' element can be in the form of a rubber cap from which extend a plurality of flexible strips or pins.

 As can still be seen in FIG. 9, a spacing 40 such that it can be respected between the latching finger 18 and the roller 6 that it can engage the keeper 12 therein to allow the leaf 2 to occupy a second open position. ajar.

 Advantageously, the ajar 13, defined by the blade 14, is of symmetrical configuration with respect to a transverse median plane 23 allowing its application to the left or to the right of a leaf 2.

 Furthermore, according to another characteristic of the present invention, this blade 14 corresponding to the stay 13 cooperates with guide means 24 associated with the headrest 9 of the locking fitting 4. In fact, such guide means 24 are , not only defined to guide the stay 13 during its movements under the impulse of the roller 6, but, moreover, to ensure its maintenance with respect to the leaf 2.

 According to a preferred embodiment, these guide means 24 consist of at least one upper guide plate 25, illustrated in FIG. 6, which, with the headrest 9 sandwiches said blade 14. In this regard, said guide plate 25 comprises at least one opening 26 for the passage of a fixing screw 27 passing through an oblong opening 28 in the blade 14 defined with a length at least equal to the stroke capable of being communicated to the stay-open device 13 under the impulse of the roller 6.

 Preferably, the fixing screw 27 corresponds to at least one of those contributing to the fixing of the headrest 9 on the leaf 2.

<Desc / Clms Page number 9>

 So as to be able to tighten the upper plate 25 of the guide means 24 on this headrest 9, while retaining the blade 14 a functional clearance, under said plate 25 extends a boss 29 provided suitable, here again, to pass through the oblong opening 28 in the blade 14 so as to be able to bear, as the case may be, on said headrest 9 or, in accordance with the embodiment illustrated in the figures, on a lower plate 30 which comes to be interposed between this headrest 9 and the blade 14 so as to prevent it from rubbing on the previous one during its movements.

 Preferably, this lower plate 30, visible in FIG. 7, includes clip means 31 provided capable of cooperating with the upper plate 25 in order to make them integral with one another, while sandwiching, with a functional game, the blade 14.

 Note that these guide means 24, defined by the upper plate 25 and the lower plate 30, are preferably designed in a material with a low coefficient of friction, more particularly in synthetic material, so as to facilitate the sliding of the blade 14 corresponding to the spacer 13.

 Finally and as visible in Figures 2 and 8 to 13, in its direction opposite to the latching finger 18, the blade 14 may have an extension 32 provided capable of bearing on the rebate edge 7 of the leaf 2 so as to s oppose a force, generated for example during an attempted break-in in the ajar position of said leaf, force which would tend to pivot the blade 14 about an axis parallel to the headrest 9. Furthermore and as shown more particularly in FIG. 2, this extension 32 can end with a return bearing against a shoulder 33 in rebate 7 of the leaf 2. This shoulder 33 can correspond to the striking 34 fitted on the periphery and on the internal side of this leaf 2. It defines , thus, a cover flange provided adapted to come into application from the internal side on the sleeping frame 3 when the door, window or the like is closed.

<Desc / Clms Page number 10>

 Advantageously, again, it can be associated, directly with this ajar 13 and / or with the keeper 12 with which the hooking finger 18 is made to cooperate, guide means 42 having the function of guiding the latter to reach the or one of the half-open positions. In particular, these means 42 are intended to facilitate the engagement of the latching finger 18 in the keeper 12 and / or the engagement of the latter between said latching finger 18 and the roller 6 and / or provide a function deflection of said gripping finger 18 relative to the keeper 12 in the event of a false operation.

 In short, it is a question of preventing, when a user tries to bring the leaf of a door or window into a half-opened position by acting on the locking bolt of the bolt type or bolt lock, this user proceeds to a false maneuver in seeking this position because it would be difficult to locate, for example.

 In particular, as can be seen in FIG. 10, such guide means 42 may consist, in a fully unlocked position of the locking fitting, in a distance separating the free end 43 of the hooking finger 18 relative to the keeper entry 44 which is greater than the distance separating this same keeper entry 44 relative to the roller 6, a characteristic which is highlighted in FIG. 10 through the gap referenced 45.

 Thus, it is very certain that, starting from a closed position and in the event of unlocking, once the roller 6 removed from the keeper 12, even if the locking fitting has not been fully unlocked, the finger attachment 18 of the stay 13 cannot hook said striker 12.

 Such guide means 42 can also be defined by one end 43 of the latching finger 18 of tapered shape or at least chamfered on one at least 46 of its sides perpendicular to the direction of movement of the leaf 2, like this is visible in Figures 10 to 12.

 In particular, it will be observed that in the context of an opening operation of the leaf 2 in order to bring the latter into a position

<Desc / Clms Page number 11>

 half-opened, it is firstly ordered to unlock the locking fitting 4, a command which, as visible in FIG. 10, may not be complete. In all cases, it is followed, almost immediately, by a locking command. It can follow, as shown in Figure 11, that the strike meets the roller 6, but due to the initial movement imparted to the leaf 2 and its rounded shape, it will tend to escape from this strike 12, movement having as a consequence of presenting the engagement finger 18 when engaging in the latter. The latter being chamfered on its side 46, it will then have a tendency to automatically penetrate into the opening 12 ′ of this keeper 12, orientation which can be accentuated through a frustoconical mouth of this opening 12 '.

 Note, as shown in Figures 8 to 12, that this mouth of the opening 12 'in the keeper 12 can go flaring on one or each of its sides.

 Furthermore and as has been made visible in FIGS. 4 and 5.8 and 9, one of the sides 47, 48 delimiting laterally the opening 12 ′ in the keeper 12 can be significantly shorter to make locating easier. , by means of the latching finger 18, of the entry of this opening 12 '.

 Thus, starting from an embodiment corresponding to FIGS. 4 and 5, when a user attempts to bring a leaf 2 in the ajar position while it was previously open, when closing this leaf he will tend to order the locking of the fitting 4. If this maneuver is of too great amplitude, the hooking finger 18 will tend to meet the keeper 12. At this instant it will be sufficient for it to carry out a reverse operation, until the finger latch 18 is released relative to the side 48, facing the interior of the dwelling, of the strike 12. If, immediately after this release from said strike, this user stops his command, the amplitude of the movement conferred on the latching finger 18 will be insufficient to allow the latter to cross the opposite side 47 delimiting the opening 12 ′ in the keeper 12. Under these conditions, it necessarily comes to be located at the right of this opening 12 ′.

<Desc / Clms Page number 12>

 In the configuration corresponding to FIGS. 9 to 12, the external side 47 delimiting this opening 12 ′ in the keeper 12 is shorter than the internal side 48, so that preference was given to the ease of finding the half-open position of leaf 2 starting from the closed position of the latter.

 It is understood, of course, that the different guide means 42, to which reference was made above, can be taken individually or in combination with each other, without this affecting the spirit of the present invention.

 Insofar as one takes advantage of: one of the locking members of the locking fitting 4 for the movement control of the stay-open device 13; the fixing means normally occurring between said locking fitting and the joinery; a strike fitted, as the case may be, to the sleeping frame or an adjacent leaf; the equipment of a door, window or the like of a half-opening device in accordance with the invention does not call into question either the usual equipment of this carpentry, or even the interventions, such as machining and the like, to be carried out in any case to equip the latter with a traditional locking fitting. Thus, this ajar is able to equip very easily, both new and existing joinery, with a quick, easy intervention and within the reach of the user himself.

 Although the invention has been described with reference to a particular embodiment, it is understood that it is in no way limited thereto and that it is possible to make various modifications to the forms, materials and combination of these. various elements, without departing from the scope and spirit of the invention.

Claims (20)

claims 1. Intermediate device for door leaf (2), French window or similar (1) fitted with a locking fitting (4), such as a cremone bolt acting on at least one locking member in the form of a roller ( 6) sliding in front of a headrest (9) and able to cooperate, in the locked position, with a keeper (12) arranged in correspondence on the frame (3) or on a leaf adjacent to this door, window or similar (1), characterized in that it is defined by a blade (14) comprising hooking means (15) provided capable of cooperating with at least one roller (6) for its translation control under the impulse of the mechanism of the locking fitting (4), between an inactive position (16) and an active position (17) in which said blade (14) comprises a hooking finger (18) offset in the direction of the frame (3) by relative to the plane (19) of said leaf (2) and provided capable of cooperating with a keeper (12), normally intended to receive u n roller (6) in the leaf locking position (2) on said fixed frame (3).  2. A spacer according to claim 1, characterized in that the offset between the fastening finger (18) and the plane (19) corresponding to the leaf (2) and passing through the axis of the roller (6) is equal, at most, at the distance (21) separating the axis of this roller (6) relative to an external covering flange (22) of the frame (3), distance (21) measured when the leaf (2) is closed on the latter.  3. A spacer according to claim 2, characterized in that between the hooking finger (18) and the roller (6) is respected a spacing such that it can engage the keeper (12) in order to give the leaf (2) a second ajar open position.  4. Intermediate according to any one of the preceding claims, characterized in that the hooking finger (18) is of section (18 ') less than the opening (12') in the keeper (12), on this hooking finger (18) being engaged a flexible damping element (18 ''). <Desc / Clms Page number 14>  5. Crank according to any one of the preceding claims, characterized in that the blade (14) which defines it is of symmetrical configuration with respect to a transverse median plane (23) for its application to the left or to the right of a leaf (2).  6. Crank according to any one of the preceding claims, characterized in that it cooperates with guide means (24) associated with the headrest (9) of the locking fitting (4).  7. A spacer according to claim 6, characterized in that the guide means (24) consist of at least one upper guide plate (25) capable of sandwiching, with the headrest (9), said blade (14 ), this guide plate (25) comprising an opening (26) for the passage of a fixing screw (27) passing through an oblong opening (28) in said blade (14) defined in length at least equal to the stroke capable to be communicated to the stay-open device (13) under the impulse of the roller (6).  8. A spacer according to claim 7, characterized in that the fixing screw (27) corresponds to at least one of those contributing to the fixing of the headrest (9) on the leaf (2).  9. A spacer according to claim 7 or 8, characterized in that under the upper plate (25) extends a boss (29) provided capable of passing through the oblong opening (28) of the blade (14) so as to bear, as the case may be, on said headrest (9) or on a lower plate (30) capable of being interposed between the latter and said blade (14).  10. A spacer according to claim 9, characterized in that the lower plate (30) comprises clip means (31) provided capable of cooperating with the upper plate (25).  11. A spacer according to any one of the preceding claims, characterized in that, in its direction opposite to the latching finger (18), the blade (14) has an extension (32) provided capable of bearing on the edge in the rebate (7) of the leaf (2). <Desc / Clms Page number 15>  12. A stay according to claim 11, characterized in that the extension (32) is terminated by a return bearing against a shoulder (33) defined in the rebate (7) of the leaf (2).  13. A stay according to any one of the preceding claims, characterized in that the hooking means (15) of the blade (14) are in the form of a hook (15a) whose opening is of adjusted section roller (6).  14. A spacer according to any one of claims 1 to 12, characterized in that the attachment means (15) that comprises the blade (14) are defined by an eyelet (15b) allowing its engagement on a roller (6 ).  15. A spacer according to claim 13 or 14, characterized in that a hook (15a) or an eyelet (15b) is provided, at its internal periphery (15c), tongues or bosses (15d) provided capable of fit between the roller (6) and the headrest (9).  16. A spacer according to any one of the preceding claims, characterized in that the guide means (42) are associated with it and / or the keeper (12) with which is able to cooperate the latching finger (18 ), these means being provided capable of guiding the latter to reach the or one of the half-open positions of the leaf (2).  17. A cracker according to claim 16, characterized in that the guide means (42) consist, in a fully unlocked position of the locking fitting (4) in a distance between the free end (43) of the finger attachment (18) relative to the entry (44) of the keeper (12) which is greater than the distance separating this same entry (44) of the keeper (12) relative to the roller (6).  18. A spacer according to claim 16 or 17, characterized in that the guide means (42) are defined by one end (43) of the latching finger (18) of tapered or chamfered shape on one (46) at least on its sides perpendicular to the direction of movement of the leaf (2). <Desc / Clms Page number 16>  19. A breather according to any one of claims 16 to 18, characterized in that the guide means (42) consist of a mouth of the opening (12 ') in the keeper (12) flaring on at least one of its sides.  20. A stay according to any one of claims 16 to 19, characterized in that the guide means (42) consist in that one of the sides (47,48) laterally delimiting the opening (12 ') in the keeper (12) is significantly shorter.