EP1842996A1 - Sash bolt or sash bolt-lock type fitting capable of being embedded in a woodwork groove and comprising at least one follower. - Google Patents

Abstract

The fitting (1) has a follower (8) for driving an operating rod (5) and rotatably mounted in a casing around a rotation axis (9) for moving with respect to a plane of the rod from a side opposite to the follower. The follower includes a driving unit (17) for driving a toothed segment on an angular trajectory, from the follower with respect to another toothed segment (11), above another angular trajectory with vacuum to drive the segment (11).

Description

The present invention relates to a type of espagnolette or espagnolette-lock fitting, designed adapted to be embedded in a rabbet groove carpentry and having at least one follower for driving at least one operating rod, the said follower being mounted in rotation in a housing around an axis of rotation offset from the plane of said operating rod, on the opposite side to the embedding groove.

The present invention is in the field of building hardware and more particularly relates to the field of lock fittings, type cremone or espagnolette-lock.

Such locking fitting comprises, in known manner, a control mechanism housed in a housing comprising at least one follower provided with a toothing or the like, on which is engaged at least one associated rack, directly or through an easel, to a rod of maneuvering. This nut has at its center a hub whose ends, on either side of the follower, are rotated in openings and / or housings provided for this purpose at vertical walls front and rear of said housing.

The user is able to act, through a control mechanism, by a button, a handle, or the like, directly or indirectly controlling the rotation of the follower, on an operating rod extending above and / or below said housing. It should be noted that these modes of connection fouillot-rod maneuver are found both in the cremone type mono or bidirectional, ie able to communicate two rods displacements in opposite directions.

Anyway, such cremones are usually implanted in a groove provided for this purpose in rebate of a door leaf, window or the like.

Moreover, the right of the opening in the follower amount or possibly the cross of this opening, welcoming the housing of this cremone, has an opening allowing the passage of this square maneuver.

However, the extent of the groove practiced in a carpentry, to accommodate the entire mechanism of such a fitting, often results in a local weakening of this joinery, while one seeks instead, during the installation of such a fitting, a reinforcement of security.

This weakening is particularly detrimental in the case of using hollow joinery, for example plastic, especially PVC.

The groove made in advance in the carpentry may, again, be of insufficient size, depending on the type of fitting used, which results in expensive retouching often performed on site.

There are known attempts to overcome this problem, and allow easier and more economical manufacturing, with the least possible retouching on the joinery.

So the document DE 203 08 230 U1 discloses a cremone fitting mechanism mounted in a carpentry groove groove, with a cremone and a follower. The latter is coupled with an operating lever by a shaft, for example a polygonal finger, and cooperates with recesses of the espagnolette. The connecting shaft between the operating lever and the follower, here coaxial, is located, with respect to the bottom of the groove, above the cremone, and beyond the plane of the rabbet plane.

This follower passes through a longitudinal opening formed at a headrest installed recessed and flush with the rabbet plane. It is guided by bearings in a housing, which is fixed protruding from the headrest.

Such a housing occupies a large volume, which is not always compatible with mounting on a joinery such as a window with two leaves without central pillar, where this housing must be housed in the space between the two leaves in their closing position, which may then require retouching, especially at the level of the antagonistic wing.

The patent application EP 1 462 594 A1 similarly describes a fitting mechanism for a door, window or the like, in particular a mortise cremone in a carpentry groove groove, comprising a housing, a cremone rod, and a follower whose toothing cooperates with that of the rod of cremone, and whose axis of rotation is offset from a distance from the espagnolette rod, the opposite side thereof relative to the rabbet plane. This follower is guided by bearings in the housing mounted projecting relative to the rabbet plane. Its angular deflection is less than 180 °, and close to 90 °. The arrangement of the housing and the follower is such that the latter is limited in abutment on both sides of its angular stroke.

Although this angular deflection, close to 90 °, is well adapted to certain types of openings, in particular a French opening, it does not allow adaptation to doors or windows of oscillating-swinging type. Indeed to allow an opening at the same time by flipping and the French, it is often useful, to distinguish one from the other, to be able to communicate to the handle or the knob a rotation of sufficient amplitude, the order of 180 °, usually resulting in a large locking, which in the case of a remote follower, externally relative to the plane of the operating rods, the opposite side to the embedding groove, may be incompatible with the rebate clearance of the profile of the joinery.

The present invention proposes to overcome this problem by providing a small footprint fitting, in which the travel of the follower can reach 180 °.

Thus, the invention relates to a type of espagnolette or espagnolette-lock, designed adapted to be embedded in a rabbet groove carpentry and having at least one follower for driving at least one operating rod, the said follower being mounted in rotation in a housing about an axis of rotation offset from the plane of said operating rod, on the opposite side to the embedding groove, characterized in that the follower comprises at least a first and a second toothed sectors and comprises drive means designed capable of driving, beyond a first angular stroke at least partially empty for the drive of the first sector toothed, the second sector gear on an angular stroke corresponding to an angular stroke at least partially empty of said follower relative to the first toothed sector.

According to another feature of the invention, the first toothed sector is designed to cooperate with a first rack portion and the second toothed sector is designed adapted to cooperate with a second rack portion, the latter being designed to ensure the extension of the movement likely to be communicated by the first rack portion (associated with an easel or rod maneuver).

Advantageously, the toothed sectors are offset relative to each other with respect to the axis of the follower, while the rack portions are offset in correspondence on the easel or the operating rod.

Advantageously, each rack portion is extended, at least at one of its ends, by a clearance allowing a vacuum stroke relative to the corresponding tooth sector.

The advantages which derive from the first invention consist in that, while having a nut offset externally with respect to the fitting groove of the fitting, it is possible to transmit to this follower a rotation of an angle greater than 90 ° or 180 °, if not more, depending on the size of the toothed sectors, while limiting the grip of this nut on a sector of 180 °. In other words, despite this offset externally to the furrow rebate plane, it can be associated for this type of espagnolette or espagnolette-lock to joinery with multiple openings, including tilt-and-turn type.

• la figure 1 est une représentation schématisée et en coupe longitudinale de la ferrure, objet de l'invention, intégrée dans une rainure d'encastrement en feuillure de menuiserie,
• la figure 2 est une représentation schématisée en perspective et éclatée de la dite ferrure,
• la figure 3 est une vue partielle en plan d'un côté, boîtier retiré de ladite ferrure,
• la figure 4 est une vue similaire à la figure 3 vue du côté opposé,
• la figure 5 est une vue similaire à la figure 3 illustrant le positionnement des deux secteurs dentés après une première rotation du fouillot,
• la figure 6 est une vue similaire à la figure 4 pour la même position du fouillot que la figure 5,
• les figures 7 et 8 sont similaires aux figures 5 et 6 avec une rotation complémentaire du fouillot.

The invention will be better understood on reading the following description, the understanding of which will be made easier by reference to the accompanying drawings.

• Figure 1 is a schematic representation in longitudinal section of the fitting, object of the invention, integrated into a recessed groove groove carpentry,
• FIG. 2 is a diagrammatic perspective and exploded representation of said fitting,
• FIG. 3 is a partial plan view of one side, housing removed from said fitting,
• FIG. 4 is a view similar to FIG. 3 seen from the opposite side,
• FIG. 5 is a view similar to FIG. 3 illustrating the positioning of the two toothed sectors after a first rotation of the follower,
• FIG. 6 is a view similar to FIG. 4 for the same position of the follower as FIG. 5;
• Figures 7 and 8 are similar to Figures 5 and 6 with a complementary rotation of the follower.

As shown in the figures of the accompanying drawings, the present invention relates to the field of hardware type cremone or espagnolette-lock for door, window or the like.

In particular, said fitting 1 is provided capable of being embedded in a groove 2 provided in rebate 3 of this joinery. Usually the hardware equips an opening.

In particular, it comprises a housing 4 serving as a housing for the drive mechanism on which the user is likely to intervene as appropriate by means of a handle or a control button or a key element. Above and / or below the housing 4 extends an operating rod 5, intended to provide a locking / unlocking function. This or these operating rods 5 move, usually, to the rear of a headrest 7 closing the recess groove 2 rabbet 3.

In particular, this fitting 1 comprises a follower 8 which, in this case, is rotatably mounted in the casing 4 about an axis of rotation 9 which is offset relative to the plane 10 of the operating rod or rods 5, on the opposite side to the embedding groove 2.

From now on we will specify that the present type fitting espagnolette or espagnolette-lock can be equipped with a single directional rod mono-directional extending above and / or below the housing 4 as it can be provided with two separate rods 5, likely to move in opposition through a reversing gear.

In a particular way to the invention, the follower comprises a first toothed sector 11 and a second toothed sector 12 which, in the embodiment illustrated in the figures of the accompanying drawings, are coaxial with the axis 9 of this follower 8 .

This particularly includes a hub 13 rotated in the housing 4, the hub 13 having an opening 14 for receiving what is commonly called a maneuvering square on which the user is likely to act by the intermediate handle or control knob. It will be noted, in particular, that this square maneuver can adopt a section that is not necessarily square, as is illustrated in the figures. The opening 14 of this hub 13 again coincides with corresponding openings 15 and 16, in the front and rear side walls 4A, 4B of the housing 4.

In particular, the follower 8 comprises drive means 17 designed capable of driving, beyond a first angular vacuum stroke 18 for driving the first toothed sector 11, the second sector gear 12 on a corresponding angular stroke 19 at least in part, at an empty angular stroke of said follower 8 and more precisely of its hub 13, with respect to said first toothed sector 11.

More particularly, said drive means 17 are constituted, essentially, by a hub 13 of the follower 8, constituted by two half-hubs 13A, 13B, associated, respectively, with the first 11 and the second toothed sector 12. each half-hub comprises two driving fingers 20, 21 which are distinguished by their radial length, the first being more long than the second. These drive fingers 20, 21 are designed to cooperate with a drive pin 22A, 22B, which comprises each toothed sector 11, 12, knowing that this drive pin 22A, 22B is mounted to move in translation in a light 23A, 23B, extending at least radially at a toothed sector 11, 12.

More exactly, the radial component mobility of the drive pin 22A, 22B, in the slot 23A, 23B, of a toothed sector 11, 12, is defined so that in a first position 24 where this driving pin 22A, 22B is located as close to the axis of rotation 9, each of the driving fingers 20, 21, is designed capable of acting on this pin for the rotary drive of the toothed sector 11, 12, corresponding, while that in a second position 25 where this pin 22A, 22B is furthest from said axis of rotation 9, only the longest drive finger 20, allows the rotation control of the toothed sector in question through the pin 22A, 22B.

According to this embodiment of the invention, the casing 4 comprises, on its side, radial translation control means 26 of the driving pin 22A, 22B, between these extreme positions 24 and 25. According to the invention, these radial translation control means 26 are defined by cam tracks 27A, 27B, defined on the internal side to side walls 4A, 4B of the casing 4.

According to an advantageous embodiment, these cam tracks 27A, 27B are in the form of grooves on the inner side of these side walls 4A, 4B, grooves in which one end is held 28A, respectively 28B, of each of the pegs. 22A, 22B. Thus, the amplitudes of these cam tracks 27A, 27B are defined in such a way as to be able to confer, via the driving fingers 20, 21 - drive pins 22A, 22B, a determined angular stroke to each of the sectors teeth 11, 12. Preferably, these cam tracks 27A, 27B, in cooperation with the drive pins 22A, 22B, contribute to the limitation in rotation of each of the toothed sectors 11, 12 through the follower 8.

Preferably, the sum of the angular races 18, 19, is defined so as to be able to communicate to the control handle, acting on the follower 8, a rotation of about 180 ° decomposing in the succession of the two races 18, 19, substantially equivalents, of the order of 90 ° making it very easy to distinguish, if necessary, a first and a second opening mode as is usually the case for cremone or espagnolette-lock type fittings applied to oscillating openings. leaves.

However, it is well understood that the present invention is not limited to any application to such multiple opening apertures. The gain in amplitude of rotation resulting from the invention makes it possible in all cases, a gain in the amplitude of displacement of locking members such as the operating rod and this in view, for example, of a locking safer. In particular, a rotation limited to 90 ° resulting in less movement of a drive rod can lead to insufficient drive of locking members to ensure their engagement in their respective latches on the frame of a door, window or similar. This problem can be encountered, especially, during too big rabbet play.

To return to the operating mode of the fitting according to the invention, starting from a disposition as illustrated in FIG. 3 which we will interpret as being a total locking position, a first rotation of the follower 8 by the control handle according to the first race 18, leads, through the shortest drive finger 21 of the half-hub 13A, to drive the first toothed sector 11, and this insofar as the driving pin 22A is, under the pulse of the cam track 27A, not visible in the figures, pushed into its first position 24, the closest to the axis of rotation 9 of the follower 8. Simultaneously and as visible in Figure 4, at this first rotation referenced D in FIG. 3 and this FIG. 4, the half-hub 13B rotates freely with respect to the second tooth sector 12, because of the driving pin 22B, pushed back under the impetus of the cam track 27B, in the second position 25, farthest from the axis 9 of rotation of the follower 8. More exactly, the drive finger 21 of the second half-hub 13B, does not meet, in its semicircular trajectory, the drive pin 22B.

On the other hand, it is clearly seen in this FIG. 4 and more particularly with reference to FIG. 6, that beyond this first race 18, of the order of 90 °, the drive finger 20 of this half-hub 13B has come into contact with the drive pin 22B. Also, by continuing the rotation of the follower 8, that is to say by executing the second race 19, this drive finger 20, acting on this drive pin 22B, rotates the second toothed sector 12.

However, during the first race 18, the angular displacement of the first toothed sector 11 has led to pushing the drive pin 22A in its second position 25 under the impetus of the cam track 27A. In this way, this drive pin 22A has been removed from the trajectory of the drive finger 21 of the half-hub 13A which can then freely continue its rotation, that is to say in the form of a race with vacuum 19 relative to the first toothed sector 11. If, per se, the walls of the housing 4 can contribute to limiting the angular races of each of the toothed sectors 11, 12, this rotation limitation can still result from the cam tracks 27A, 27B, whose ends can define designed stops adapted to cooperate with the drive pins, respectively 22A, 22B.

According to another feature of the invention, each toothed sector 11, 12 is designed to cooperate, at the rear of the front face opposite to the groove of the housing 4, with a rack portion 29, 30 fitted as appropriate , a transmission bridge 31 as it appears in the illustrated embodiment or, directly, an operating rod 5 in its portion introduced into the housing 4. In the following description, it will be limited to refer to a bridge of transmission 31.

In particular, the rack portion 30 is defined able, under the impulse of the second toothed sector 12, to communicate to the transmission bridge 31, a displacement which constitutes the extension of the displacement communicated to it previously by the first toothed sector 11 in cooperation with the first rack portion 29 and vice versa.

Insofar as the toothed sectors 11, 12 are axially offset at the follower 8, the rack portions 29, 30 are themselves offset transversely at the level of the transmission bridge 31, or even of the operating rod 5.

In addition, each of these rack portions 29, 30, is extended at its end 34, 35 (not shown in the figures), on the side towards the other rack portion 30, 29, of a disengagement segment. 32, 33 defined in the illustrated embodiment, in the form of a groove, but which could still take the form of a recess, or an opening at the easel 31. The aim of this disengaging segment is the free movement of said transmission bridge 31 during the idle races 18, 19 of the follower 8, respectively, with respect to the second toothed sector 12 and the first tooth sector 11.

Finally, as can be seen, despite a footprint reserved for the follower 8 of the order of 180 °, it can be communicated to this follower 8 a rotation of an angle greater than 90 ° and up to 180 ° or more.

Thus, the present invention responds, advantageously to the problem.

Claims (14)

Fitting (1) espagnolette type or espagnolette-lock, designed adapted to be embedded in a groove (2) rabbet (3) joinery and having at least one nut (8) for driving at least one rod of maneuver (5), said follower (8) being mounted in rotation in a housing (4) about an axis of rotation (9) offset from the plane (10) of said operating rod (5), on the side opposite to the embedding groove (2), characterized in that the follower (8) comprises at least a first (11) and a second (12) tooth sectors and comprises drive means (17) designed to be adapted to driving, beyond a first angular stroke (18) at least partially empty for driving the first tooth sector (11), the second tooth sector (12) on an angular stroke (19) corresponding to an angular stroke at least partially empty of said follower (8) relative to the first tooth sector (11). Fitting (1) according to the preceding claim, characterized in that the first toothed sector (11) is designed to cooperate with a first rack portion (29) and the second toothed sector (12) is designed to cooperate with a second rack portion (30), the latter being designed to ensure the extension of the movement likely to be communicated by the first rack portion (29), associated with an easel (31) or an operating rod (5) . Fitting (1) according to the preceding claim, characterized in that the toothed sectors (11, 12) are offset relative to each other with respect to the axis of the follower (8), while the portions of rack (29, 30) are offset in correspondence on the bridge (31) or the operating rod (5). Fitting (1) according to one of claims 2 or 3, characterized in that each rack portion (29, 30) is extended, at least at one of its ends (34, 35), by a clearance allowing a vacuum stroke with respect to the toothed sector (11, 12) corresponding. Fitting (1) according to one of the preceding claims, characterized in that said drive means (17) consist essentially of a hub (13) of the follower (8), consisting of two half-hubs (13A , 13B), associated respectively with the first (11) and the second toothed sector (12). Fitting (1) according to the preceding claim, characterized in that each half-hub (13A, 13B) comprises two drive fingers (20, 21) which are distinguished by their radial length, the first being longer than the second and which are adapted to cooperate with a driving pin (22A, 22B), which each toothed sector (11, 12) comprises, said driving pin (22A, 22B), being mounted to move in translation in a light ( 23A, 23B) extending at least radially at a tooth sector (11, 12). Fitting (1) according to the preceding claim, characterized in that the radial component mobility of the driving pin (22A, 22B) in the slot (23A, 23B) of a toothed sector (11, 12) is defined so that in a first position (24) where this driving pin (22A, 22B) is located closest to the axis of rotation (9), each of the driving fingers (20, 21) is adapted to act on this pin (22A, 22B) for the rotational drive of the toothed sector (11, 12), corresponding, while in a second position (25) where this pin (22A, 22B) is furthest away of said axis of rotation (9), only the longest driving finger (20), allows the rotation control of the tooth sector in question through the pin (22A, 22B). Fitting (1) according to the preceding claim, characterized in that the housing (4) comprises, on its side, means for controlling in radial translation (26) the driving pin (22A, 22B), between these extreme positions (24) and (25), defined by cam tracks (27A, 27B) defined on the inner side to side walls (4A, 4B) of the housing (4). Fitting (1) according to the preceding claim, characterized in that these cam tracks (27A, 27B) are in the form of grooves on the inner side of these side walls (4A, 4B), grooves in which one end is held (28A), respectively (28B), of each of the driving pins (22A, 22B). Fitting (1) according to the preceding claim, characterized in that the amplitudes of these cam tracks (27A, 27B), are defined so as to confer, through the driving fingers (20, 21) - driving pins (22A, 22B), a determined angular travel to each of the toothed sectors (11, 12). Fitting (1) according to one of claims 8 to 10, characterized in that these cam tracks (27A, 27B), in cooperation with the drive pins (22A, 22B), contribute to the limitation in rotation of each of the toothed sectors (11, 12) through the follower (8). Fitting (1) according to one of the preceding claims, characterized in that the sum of the angular races (18, 19) is defined so as to be able to communicate to a control handle, acting on the follower (8), a rotation of about 180 ° decomposing in the succession of two races (18,19), substantially equivalent, of the order of 90 ° for very easily distinguish, if necessary, a first and a second opening mode. Fitting (1) according to claim 2, characterized by the in that the toothed sectors (11, 12) are axially offset at the level of the tumbler (8) and the rack portions (29, 30) are themselves offset transversely at the transmission bridge (31) or the rod maneuver (5). Fitting (1) according to claim 2, characterized in that each of the rack portions (29, 30) is extended at its end (34, 35) on the side towards the other rack portion (30, 29), a disengaging segment (32, 33) defined in the form of a groove, recess, opening or the like at the transmission trestle (31).

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