EP1026352B1 - Lock fitting of the espagnolette or espagnolette-lock type - Google Patents

Description

The invention relates to a bolt-type locking fitting or lock-bolt comprising a control mechanism housed in a housing comprising at least one follower provided with teeth or the like on which at least one meshes rack associated directly or through an easel an operating rod, said follower comprising in its centers a hub with the ends on either side of it follower, are kept rotating in openings and / or housing provided for this purpose at the vertical walls front and rear of said housing.

Lock fittings of this type are known, see for example DE-A-2 345 496 or DE-A-3 307 563.

The present invention will find its application in the field of the building hardware and concerns, more particularly, the field of locking fittings of the type cremone bolt or cremone bolt.

In fact, as will emerge from the description which follows, the present invention attempts to remedy a problem assembly of this type of locking fitting.

Thus, in a known manner, a lever or lever-lock essentially comprises a control mechanism housed in a housing and through which a user is able to act on at least one operating rod extending above and / or in below said housing.

In particular, said control mechanism includes a follower crossed, in its center, by an opening for the reception of a square with a handle or a button ordered. This follower is still provided with a toothing or similar coming to mesh on an associated rack directly at the end introduced into the housing of a operating rod or to an easel connected to such rod.

This follower has, there again, a hub whose ends, on either side of the follower, are kept rotating at through the front and rear walls of the housing. In particular, at these walls can be made openings of section adjusted to this hub to keep it rotating, everything as at least one of them can present, inside the housing, a housing for the reception of a such hub end. Finally, this one can still be delimited through a simple circular groove formed by on either side of the follower, in such a circular groove coming to insert a delimiting peripheral rim, inside the housing, the circular opening in the front and back walls of the latter.

We can already understand through the description which precedes, that the operating rod or the easel, provided with the rack, and said follower cannot be positioned individually and successively in the case, i.e. at the wall of the latter forming a trunk and receiving all parts of this mechanism before it is closed housing through the other wall defining it, a lid.

Indeed, if we first put in place in this trunk of the housing the rack element, as appropriate the rod maneuver or the easel, it is then almost impossible, to obtain the engagement of the toothing of the follower with this rack, while positioning one end of the hub of this follower in what serves as a bearing, in particular, an opening in the wall of this housing.

This requires, in short, to manually perform the mounting of this control mechanism of a lever or lever-bolt, if you don't want to use an assembly machine automatic. On this, it will be noted, again, that the positioning different pieces between them is rarely indifferent to so that just complicates this operation assembly. In particular, in the case of cremone bolts or cremone bolts with two operating rods separate extending, respectively, above and below of the case and caused to move in directions opposite under the action of the control mechanism, this one also comprises at least one reversing pinion on which comes to mesh, diametrically opposite, both a rack associated with the operating rod or bridge already cooperating with the follower and a rack equipping the second operating rod.

We understand, of course, that at the time of implantation in the case of these different parts, they must cooperate between them in a well-defined position otherwise the cremone bolt or bolt lock may not work optimally if not at all.

Consequently, the present invention proposes to provide a solution to the above problem by allowing, in particular, to have in what comes to define, initially, the box trunk, successively, each of the parts of the control mechanism, as well as the operating rod or rods before the part forming is brought back to this chest lid. The latter ultimately freezes the relative positioning of the parts with respect to other.

To this end, the invention relates to a locking device for type cremone bolt or cremone bolt including a locking mechanism control housed in a housing and comprising at least one follower with teeth or the like on which meshes at least one rack associated directly or through a easel to an operating rod, said follower comprising, in its center, a hub whose ends, on both sides of this follower, are kept rotating in openings and / or housing provided for this purpose at the walls vertical front and rear of said housing, characterized by that the opening or the housing in one of the walls of the housing and receiving, for the maintenance in rotation, one of the hub ends, is oblong extending perpendicular to the operating rod (s) and authorizing the displacement of the follower between a first non-engaged position on the rack and a second position in which its teeth are engaged on the latter.

Preferred variant forms of the invention are the subject dependent claims.

In short, at the level of the wall of the housing coming to define, at when the cremone bolt or bolt lock is assembled, the safe suitable for receiving all the parts of the control, the follower hub can first be inserted in the opening or the housing which serves as its bearing, before that we come to push back this follower so that its teeth cooperates with the rack of an operating rod or a easel. Also, these parts can be inserted independently and one after the other in this case before is reported on the latter the other wall defining the cover including opening or housing used for reception on the other end of the hub keeps its initial section shape circular. Consequently, once this wall, corresponding with the lid positioned on the case, it prevents any relative displacement of the follower relative to said rod maneuver or said easel so that these parts remain, then, constantly meshed one on the other.

• la figure 1 est une représentation schématisée et en plan de la paroi formant coffre d'un boítier prévu apte à accueillir le mécanisme de commande d'une crémone, au niveau de cette paroi étant déjà positionnés les pignons inverseurs ;
• la figure 2 est une représentation similaire à la figure 1 après la mise en place des crémaillères associées à des chevalets venant prolonger, à l'intérieur du boítier, les tringles de manoeuvre ;
• la figure 3 illustre la dépose dans une première position du fouillot, au niveau de cette paroi formant coffre ;
• la figure 4 illustrant, dans le cadre d'une représentation similaire aux figures 1 et 2, le fouillot une fois celui-ci repoussé dans sa position engrénée ;
• la figure 5 est une représentation schématisée en plan du boítier de la crémone, une fois ce boítier refermé au travers de la paroi formant couvercle ;
• la figure 6 est une représentation schématisée et en élévation du fouillot.

The invention will be better understood on reading the description which follows relating to an exemplary embodiment and accompanied by the attached drawing in which:

• Figure 1 is a schematic and plan view of the wall forming the trunk of a housing provided adapted to accommodate the control mechanism of a cremone bolt, at this wall being already positioned the reverse gears;
• Figure 2 is a representation similar to Figure 1 after the introduction of the racks associated with trestles extending, inside the housing, the operating rods;
• Figure 3 illustrates the removal in a first position of the follower, at this wall forming the trunk;
• FIG. 4 illustrating, in the context of a representation similar to FIGS. 1 and 2, the follower once it has been pushed back into its engaged position;
• Figure 5 is a schematic plan view of the cremone housing, once the housing closed through the wall forming a cover;
• Figure 6 is a schematic representation in elevation of the follower.

In the following description, reference is made to FIGS. 1 to 6 of the attached drawing.

In fact, as visible in these figures, the present invention relates to the area of bolt-type locking fittings or lock-bolt. In this regard, it was particularly shown an embodiment of a cremone bolt in these FIGS.

Anyway, this type of lock type fitting cremone bolt 1 or cremone bolt includes a control mechanism 2 contained in a housing 3 and through which a user is in able to act on at least one operating rod 4, 4A extending above and / or below this housing 3.

In particular, the control mechanism 2 includes a follower 5 rotatably mounted in this housing 3 and crossed by a opening 6 for receiving the operating square of a handle or control button accessible to the user. This follower 5 is provided with a toothing 7 or the like on which comes to mesh with at least one associated rack 8, that is to say directly at one end of the operating rod 4 introduced in the housing 3, either as shown in the figures, to an easel 9 to which is connected the rod maneuver 4 and therefore constituting the extension of the latter inside this housing 3.

In the context of the cremone bolt more particularly represented in the attached drawing, this comprises two rods of maneuver 4, 4A extending, respectively, above and below of the housing 3 and to which the control mechanism 2 is even to communicate movements in directions opposite when locking or unlocking. Also, this control mechanism 2 also comprises at least one reversing pinion 10 on which come to mesh, so diametrically opposite, racks 11, 12 one of which is associated with the easel 9, therefore with the first rod of operation 4 on which the follower 5 also acts, while the other rack 12 is associated with the second rod maneuver 4A, again, either directly or through a easel 13 constituting its extension in the housing 3.

If shown in Figures 1, 2, 4 and 5, a cremone bolt 1 provided with two reversing pinions 10, such a mode of realization leads to a set of superior mechanical strength knowing that, in the case of case 3 of reduced depth, the section of these reverse gears 10 and, therefore, the size of the teeth is necessarily limited. However, it will be understood that the present invention is in no way limited to such a mode of realization of cremone bolt with several reverse gears.

As for the follower 5, as visible in figure 6, it has, in its center, a hub 14 whose ends 15, 16, on either side of this follower 5 are intended to be kept in rotation in openings 17, 18 and / or housing provided for this purpose at the vertical walls front 19 and rear 20 of the housing 3.

It will be noted, in this regard, that during the assembly of the cremone bolt 1, said parts of the control mechanism 2 are assembled at a wall 19 forming a trunk, the other wall 20 as visible in FIG. 5, defining, then, a cover closing the housing 3 once this mechanism command 2 assembled.

According to a feature of the present invention, the opening 17 or the housing defined in one 19 of these walls of the housing 3, in particular the wall defining the trunk, is shaped oblong and extends, at the level of this wall 19, along a direction 21 perpendicular to the operating rod (s) 4, 4A, this in order to authorize the displacement of the follower 5 between a first position 22 visible in FIG. 3, a second position 23 shown in figure 4.

In particular, in its first position 22, the follower 5 has its teeth 7 not engaged on the rack 8. This allows, to implant this follower 5 at the level of the wall 19 forming a trunk, while at the level of the latter have and already set up easels 9 and 13 with their racks 8, 11, 12.

Finally, from this non-meshed position 22 of the follower 5 just push it back into position 23, which displacement being allowed through the oblong shape of opening 17, so that the engagement of the toothing 7 of this follower 5 on the rack 8.

As for the wall 20 forming a cover, this retains a opening 18 of section adjusted to the hub 14 so that once this wall 20 (or cover) positioned on the wall 19 forming a trunk, the follower 5 is seen immobilized in translation in this case 3.

In order to further facilitate assembly on a possible automatic machine, of this lever or lever-lock 1, it may be provided at the wall 19 forming a trunk, one or positioning stops 24, 24A of the easel (s) 9, 13 or the operating rod (s) 4, 4A with their racks 8, 11, 12, ensuring that these last occupy a well-defined position at the time of the placing the follower 5. Advantageously, these stops positioning 24, 24A are thus determined at this level wall 19 to intervene at the free end, introduced into the housing 3, this or these easels 9, 13 or this or these operating rods.

Consequently and as appears from the description which precedes, the present invention responds, so advantageous, to the problem encountered in the context of mounting and of the assembly of these locking fittings of the lever type or lock-bolt.

Claims (3)

1. Locking fitting of the espagnolette or espagnolette-lock type comprising a control mechanism (2) accommodated in a casing (3) and including at least one tumbler (5) provided with a toothing (7) or the like, with which engages at least one rack (8) associated, directly or through a support (9), with an operating rod (4), said tumbler (5) including, at its centre, a hub (14) the ends (15, 16) of which, on both sides of this tumbler (5), are rotationally maintained in openings and/or recesses (17, 18) provided to this end at the level of the front (19) and rear (20) vertical walls of said casing (3), characterised in that the opening (17) or the recess in one (19) of the walls of the casing (3) and receiving, for rotationally maintaining, one of the ends (15) of the hub (14) has an elongated shape extending perpendicularly to the operating rod or rods (4, 4A) and authorising the displacement of the tumbler (5) between a first position (22) not engaged with the rack (8) and a second position (23) in which its toothing (7) is engaged with the latter.
2. Locking fitting according to claim 1, characterised in that the wall (19) provided with an opening (17) having an elongated shape for receiving an end (15) of the hub (14) corresponding to the tumbler (5) is the wall forming a box designed capable of receiving all the parts of the control mechanism (2) before the casing (3) is closed by means of the other wall (20) forming the lid and including an opening (18) with a cross-section adjusted to the other end (16) of the hub (14) of said tumbler (5).
3. Locking fitting according to claim 1 or 2, characterised in that at the level of the wall (19) forming a box of the casing (3) are provided for one or several positioning stops (24, 24A) for the support or supports (9, 13) or for the operating rod or rods (4, 4A).

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