EP0409754B1 - Locking device for a sliding window, sliding door or the like - Google Patents

Abstract

The invention relates to a locking device for a door, window or the like, comprising a sliding leaf (1) equipped with a front upright in the form of a U-section (5) capable of engaging into a U-section (8) forming the corresponding upright of the frame (2) in the closing position, the bottoms (14, 10) of each of these U-sections (5, 8) maintaining a distance between them so as to delimit a free space (29) in which assume position, on the one hand, at least one hook bolt (20) fixed to an operating rod (19) and, on the other hand, at least one keeper (26) fastened in the U-section (8) of the frame (2). <??>To mitigate the problem of the free space (29) which, in the closing position, is delimited by the bottoms (14, 10) of the U-sections (5, 8) of the sliding leaf (1) and of the frame (2) respectively, particularly in the event of a reduction of the cross-section of one of these U-sections (5, 8), the locking device comprises, in the region of the operating rod (19), automatic compensation means which finally allow at least one hook bolt (20) and one keeper (25) of standard size to be inserted into this free space (29). <IMAGE>

Description

The invention relates to a locking fitting for a door, window or the like comprising a sliding leaf provided with a front upright in the form of a "U" profile capable of fitting into a "U" profile constituting the corresponding amount of the frame in the closed position of the door, window or the like, the bottom of each of these "U" profiles respecting a distance between them so as to delimit a free space in which take position, on the one hand, at least one hook bolt secured to a movable operating rod in a groove produced inside and parallel to the bottom of the "U" profile of the sliding leaf, this operating rod being actuated by a cremone bolt or cremone bolt and, on the other hand, at least one keeper fixed in the bottom of the groove of the "U" profile of the frame and coming to cooperate with the hook bolt to lock the sliding leaf. The present invention will find its application in the field of building hardware.

In fact, when one is in the presence of a door, window or the like, the sliding opening of which is made of profiles, in particular, of "U" section determining at the periphery of this sliding opening a groove whose opening is oriented towards the frame, it is necessary to take into account certain parameters. On the one hand, there must be a constant clearance between the front edge of the parallel walls of the "U" profile composing the front upright of this sliding leaf and the bottom of the groove of the "U" profile that also makes up the corresponding amount of the frame. Such a condition is essential to prevent the opening from hitting the bottom of this groove of the "U" profile of the frame.

On the other hand, it is imperative to take into account the distance which separates, in the closed position, the bottom of the groove of the "U" profile from the sliding sash in which the operating rod moves, and the bottom the groove of the "U" profile of the frame on which the keeper is fixed. In fact, this distance separating the bottoms of the abovementioned "U" sections determines the space necessary for the installation of the various elements of the locking fitting.

In the case of rabbet fittings, the use of traditional fittings is known, according to the prior art. Indeed, the indicated space can collect a keeper as well as the corresponding locking element, which is mounted on the front face of a rod, the latter being activated in a groove of the edge before the amount of the opening. This is not a problem as long as the space indicated is sufficient and the fittings are suitable. These sliding windows have a certain weight and their profiles have substantial sections, these types of windows being intended to equip openings allowing access to the outside, have characteristics of resistance and endurance.

Also in this case of sliding doors, there are sliding doors called light whose section of their profile although having a morphology identical to the previous ones, is more reduced. The space for the fittings is reduced so that the latter are characterized by the fact that the rods comprise either openings receiving hook strikes, or mushroom rollers which penetrate into openings made in the frame. In this state of the art, it is the active face of the keeper's hook which is placed behind the rear face of the rod to ensure locking or vice versa in the case of mushroom rollers.

These fittings for light sliding doors cannot be suitable for larger works because they would no longer allow them to confer resistance and endurance characteristics: the components of the fittings used being more fragile, these light sliding doors are fitted with openings separating two rooms in a house.

However, in this situation, without reducing their quality, certain manufacturers of said "U" sections proceed to a reduction in their section in order to reduce the cost price of the sliding opening thus designed. This reduction in the section of the "U" profile making up the opening is not to the detriment of the constant play between the edge of this profile of the sliding opening and the bottom of the groove of the "U" profile of the frame, but is at the expense of the distance therefore of the space between the bottom of the "U" profile of the sliding leaf in which moves the operating rod and the bottom of the "U" profile corresponding to the frame.

If you want to use traditional fittings, it is therefore necessary to provide means to compensate for this reduction in the section of the "U" section of the opening.

In addition, the keeper and the hook bolt must keep a normal function to ensure their quality of locking properly and qualitatively, it is out of the question to weaken their resistance by reducing one or the other.

The present invention aims to remedy all of the aforementioned drawbacks.

The invention as characterized in the claims solves the problem of creating a locking fitting for a door, window or the like, comprising a sliding leaf provided with a front upright in the shape of a "U" profile capable of fitting into a "U" profile constituting the corresponding amount of the frame, in the closed position, the bottom of each of these "U" profiles respecting a distance between them so as to delimit a free space in which take position, on the one hand , at least one hook bolt secured to a movable operating rod in a groove produced inside and parallel to the bottom of the "U" profile of the sliding leaf, this operating rod being actuated by a cremone bolt or cremone bolt -lock and, on the other hand, at least one keeper fixed in the "U" profile of the frame and coming to cooperate with the hook bolt to lock the sliding leaf, this locked fitting ge comprising, on the operating rod means to compensate, in the event of a reduction in the cross-section of at least one of the "U" sections of the sliding leaf or of the frame, the reduction in the distance separating the bottom of said section in "U" of the sliding leaf and the bottom of the "U" profile corresponding to the frame, to allow the insertion, in the free space, thus defined, of the hook bolt and the keeper cooperating with the latter.

The advantages which flow from the present invention consist essentially in the fact that it is possible to keep all of the elements constituting a traditional locking fitting in the door frame, window or the like, in particular the sliding leaf comprises a structure in “U” section profiles with reduced dimensions.

• la figure 1 représente une vue partielle, en élévation et au niveau d'un point de verrouillage, d'une ferrure de verrouillage conforme à l'invention et appliquée à un ouvrant coulissant dont le profilé de section en "U", composant le montant avant, présente une seule rainure verticale et, ce, selon un premier mode de réalisation ;
• la figure 2 représente une vue partielle en plan de la figure 1 ;
• la figure 3 représente une vue partielle, en élévation et au niveau d'un point de verrouillage d'une ferrure de verrouillage conforme à l'invention et appliquée à un ouvrant coulissant dont le profilé de section en "U", composant le montant avant, présente deux espaces verticaux, cette disposition correspondant à un autre mode de réalisation ;
• la figure 4 représente une vue partielle en plan de la figure 3 ;
• la figure 5 représente une vue partielle et en élévation au niveau d'un point de verrouillage d'une ferrure de verrouillage conforme à l'invention et appliquée à un ouvrant coulissant dont le profilé de section en "U" présente une seule rainure verticale, cette ferrure de verrouillage correspondant à un second mode de réalisation ;
• la figure 6 représente une vue partielle en plan de la figure 5 ;
• la figure 7 représente une vue partielle, en élévation et au niveau d'un point de verrouillage d'une ferrure de verrouillage conforme à l'invention et appliquée à un ouvrant coulissant dont le profilé de section en "U" composant le montant avant, présente deux espaces verticaux, cette ferrure de verrouillage correspondant à un second mode de réalisation ;
• la figure 8 représente une vue partielle et en plan de la figure 7.

The invention is set out below in more detail, with the aid of drawings representing only one embodiment.

• Figure 1 shows a partial view, in elevation and at a locking point, of a locking fitting according to the invention and applied to a sliding leaf whose sectional section in "U", forming the amount before, has a single vertical groove and, according to a first embodiment;
• Figure 2 shows a partial plan view of Figure 1;
• 3 shows a partial view, in elevation and at a locking point of a locking fitting according to the invention and applied to a sliding leaf whose sectional section in "U", composing the front upright , has two vertical spaces, this arrangement corresponding to another embodiment;
• Figure 4 shows a partial plan view of Figure 3;
• FIG. 5 represents a partial view in elevation at the level of a locking point of a locking fitting according to the invention and applied to a sliding leaf whose sectional section in "U" shape has a single vertical groove, this locking fitting corresponding to a second embodiment;
• Figure 6 shows a partial plan view of Figure 5;
• FIG. 7 represents a partial view, in elevation and at the level of a locking point of a locking fitting in accordance with the invention and applied to a sliding leaf whose sectional section in "U" form the front upright, has two vertical spaces, this locking fitting corresponding to a second embodiment;
• FIG. 8 represents a partial plan view of FIG. 7.

We refer to Figures 1 to 4.

A window, door or the like is provided, formed of at least one sliding opening 1, the frame of which is made of metal profiles and / or of plastic material of "U" section and of a frame 2, the frame of which also consists of metal and / or plastic profiles of similar section, of a traditional locking fitting 3 making it possible to lock said sliding opening 1.

When closing the window, door or the like, the front edge 4 of the "U" profile 5 making up the front upright of the sliding leaf 1, enters the groove 6 present, at the level of the front edge 7, of the profile in "U" 8 constituting the corresponding amount of the frame 2. The stroke of the sliding sash 1 is such that at the end of the movement there remains a clearance 9 between the front edge 4 of the "U" profile 5 of the sliding sash 1 and the bottom 10 of the groove 6 corresponding to the "U" profile 8 of the frame 2 so that the vertical wing 11 of the "U" profile 8 of the frame 2 partially covers the external face 12 of the "U" profile 5 sliding door 1.

Furthermore, the front edge 4 of the "U" profile 5 of the sliding leaf 1 has a vertical groove 13 delimited with respect to said front edge 4 by a spacer 14 constituting the bottom of the vertical groove 13 and by two vertical wings 15 , 16 parallel to said spacer 14.

According to another embodiment, visible in FIGS. 3 and 4, the vertical groove 13 comprises, in addition to the vertical wings 15, 16, a second pair of vertical wings 17, 18, parallel to the latter and arranged between them ci and the spacer 14.

In this vertical groove 13 slides an operating rod 19 actuated by a lever or lever-lock (not shown) engaged from the front edge 4 in the "U" profile 5 of the sliding leaf 1.

This operating rod 19 transmits the rectilinear movement, which is given to it by the lever or by the lever-lock to hook bolts 20. The active face 22 of the hooks 21 of said hook bolts 20 cooperates with an active face 23 of a hook 24 of strikes 25 which makes it possible to obtain attachment zones 26, the number of which is of course a function of the number of hook bolts and the number of strikes 25. These strikes 25 are arranged between two vertical wings 27, 28, projecting relative to the bottom 10 of the groove 6 of the front edge 7 of the "U" profile 8 of the frame 2.

However frequently, for particular reasons, inter alia by economy, the section of the section in "U" 5 of the sliding opening 1 is reduced, which decreases the free space 29 between the bottom 10 of the groove 6 of the section in "U" 8 of the frame 2 and the bottom 14 of the vertical groove 13 of the "U" profile 5 of the sliding leaf 1. However, it is necessary to incorporate in this reduced free space 29 the traditional locking fitting and this without weakening either the hook bolts 20 or the strikes 25.

To this end, the invention comprises, at the level of the operating rod 19, means making it possible to compensate for this reduction in the free space 29 so as to be able to keep hook bolts 20 and keepers 25 with standard dimensions granting good locking security.

More particularly, the operating rod 19 is produced from flat metal wires (not shown in the figures) or from profiles as shown in Figures 2, 4, 6 and 8.

Thus and according to a first embodiment, such compensation means consist in practicing in the operating rod 19, at the various locations of the attachment zones 26, a vertical light 31 whose width 32 is at least equal to the width 33 of the front part 34 of the keepers 25 so that this front part 34 can penetrate into the operating rod 19.

When the operating rod 19 is formed from a flat metal wire, it is necessary to remove the fragility of this operating rod in line with the vertical light 31. To this end, the hook bolt 20 comprises a body 37 s' extending beyond, on the one hand, the upper edge 41 and, on the other hand, the lower edge 42 of the vertical light 31. Thus, the body 37 of the hook bolt 20 provides good rigidity to the two lateral edges of the vertical light 31. The front face 43 of the body 37 is provided with two pins 44, 45 engaging in orifices 46, 47 produced in the rear face 35 of the operating rod and serving as connecting elements between the hook bolt 20 and the operating rod 19. Furthermore, the front face 43 of the body 37 of the hook bolt 20 has a rectangular boss 49 engaging in the vertical opening 31 of the operating rod 19. According to the invention, it is provided that the front part 34 of the keeper 25 enters the operating rod 19. For this purpose, practical in the front face 50 of the rectangular boss 49, a recess 51 into which penetrates said front part 34 of the keeper 25. The height 52 of this recess 51 corresponds at least to the sum of the height 53 of the keeper 25 and the value of the stroke 54 of the operating rod 19 ensuring the dissolution of the cooperation between the active face 22 of the hook 21 of the hook bolt 20 and the active face 23 of the hook 24 of the keeper 25. Of course, the height 55 of vertical light 31 is a u less equal to the sum of the height 58 of the rectangular boss 49 and the height 57 of the hook 21.

When the operating rods 19 are formed by a profile, this profile has a section in the shape of a "C" or "U" so that naturally the operating rod 19 has on its rear face 35 a vertical groove 36 serving as a housing to the body 37 of the hook bolt 20.

The width 38 of this vertical groove 36 or of these sections of vertical groove is slightly greater than the width 32 of the vertical slot 31 so that two shoulders 39, 40 are obtained, against which the body 37 of the bolt bears. hook 20.

This vertical groove 36 serves as a housing for a second positioning means

We refer to Figures 6 to 8.

The hook bolt 59 has a hook 60 located at the upper end 61 of the body 62. As a result, the latter is located below the lower edge 42 of the vertical light 31 of the operating rod 19 and has on its face before 63, two pins 64, 65 which are housed in orifices 68, 67 formed in the operating rod 19.

Thus, the front edge 68 of the keeper 25 can be flush with the rear face of the operating rod 19.

Thus, the presence of the boss 49 and of the recess 51 of the previous design of the hook bolt 20 is eliminated. The two means making it possible to obtain more or less deep positions of the active zone relative to the bottom 14 of the grooves 13 of the "U" profile 5 of the sliding leaf 1.

Indeed, the front part 34 of the keeper 25 can pass entirely through the vertical light 31 of the operating rod 19 so that the front part of the hook 24 of the keeper 25 returns to be housed in the space 69 located between the rear face 35 of the operating rod 19 and the spacer 14 of the "U" profile 5 of the sliding leaf 1.

To ensure the connection between the hook bolt 20 and the operating rod 19, elastic elements 58 are provided threaded onto the stud 45 and interposed between the bottom 48 of the vertical groove 36 of the operating rod 19 and the spacer 14 of the "U" profile 5 of the sliding leaf 1. This therefore eliminates any vibration of the hook bolt 20 during its movement in the groove 13 of the "U" profile 5 of the sliding leaf 1.

Claims (8)

1. Locking device for a sliding door, window or the like, comprising a sliding wing (1) provided with a "U"-profile-shaped front stile (5) capable of fitting in a "U"-shaped profile (8) forming the stile corresponding to the sash-frame (2), in closing position, the bottoms (14, 10) of each of these "U"-shaped profiles (5, 8) keeping between each other a distance such as to define a free space (29) in which are positioned, on the one hand, at least one hook latch (20) integral with an operating rod (19) movable in a groove (13) made inside and parallelly to the bottom (14) of the "U"-shaped profile (5) of the sliding wing (1), this operating rod (19) being actuated by an espagnolette or bolt lock and, on the other hand, at least one keeper (25) secured in said "U"-shaped profile (8) of the sash-frame (2) and co-operating with said hook latch (20) to lock the sliding wing (1), locking device characterized in that it includes, on the operating rod (19), means for compensating, in the event of a reduction of the cross-section of at least one of the "U"-shaped profiles (5, 8) of the sliding wing (1) or the sash-frame (2), for the reduction of the distance between the bottom (14) of said "U"-shaped profile (5) of the sliding wing (1) and the bottom (10) of the "U"-shaped profile (8) corresponding to the sash-frame (2), in order to authorize the insertion in the free space (29) so defined of the hook latch (20) and the keeper (25) co-operating with this latter.
2. Locking device according to claim 1, characterized in that the compensating means at the level of the operating rod (19) are comprised of at least one vertical slot (31) made in the operating rod (19) and located at the locations of the hooking-in areas (26), this vertical slot (31) having a width (32) at least equal to the width (33) of the front portion (34) of the keeper (25) engaging into the operating rod (19).
3. Locking device according to claims 1 and 2, characterized in that the compensating means at the level of the operating rod (19) are comprised of a recess (51) made in the front face (50) of a rectangular emboss (49) protruding with respect to the front face (43) of a hook latch (20) including a body (37) extending beyond the upper (41) and lower edge (42) of the vertical slot (31) of the operating rod (19).
4. Locking device according to claims 1 and 3, characterized in that the vertical slot (31) of the operating rod (19) has a height (55) at least equal to the sum of the height (56) of the rectangular emboss (49) and the height (57) of the hook (21) of the hook latch (20), the rectangular emboss (49) and the hook (21) penetrating into the vertical slot (31) of the operating rod (19).
5. Locking device according to claim 3, characterized in that the recess (51) made in the front face (50) of the rectangular emboss of the body (37) of the hook latch (20) has a width at least equal to the width (33) of the front portion (34) of the keeper (25).
6. Locking device according to claim 3, characterized in that the recess (51) made in the front face (50) of the rectangular emboss of the body (37) of the hook latch (20) has a height (52) at least equal to the sum of the height (53) of the keeper (25) and the value of the stroke (54) of the operating rod (19).
7. Locking device according to claim 1, characterized in that the compensating means at the level of the operating rod (19) are a vertical groove (36) made in the rear edge (35) of this operating rod (19), this latter being formed of profiles having a "C"- or "U"-shaped cross-section, a hook latch (59) being housed in said vertical groove (36).
8. Locking device according to claim 7, characterized in that the hook latch (59) includes, at the upper end (61) of a body (62), a hook (60) and a body (62) located below the lower edge (42) of the vertical slot (31) of the operating rod (19) and provided with studs (64, 65) serving as a link between the hook latch (59) and the operating rods (19).

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