EP1039081B1 - Attachment and guiding device for the ends of the bars of an espagnolette lock - Google Patents

Abstract

The bolt or rod (2) attached to the lock box (1) consists of a flat strap sliding on the bottom of a shallow U-shaped channel (26). A guide block (8) holds a closure strip (3) which spans the gap between the sides of the U-section and holds the flat strap in the U-section. The whole assembly has a very small thickness.

Description

The invention relates to a device for fixing and guiding the ends of a fitting of the cremone bolt or cremone bolt type capable of fitting into a groove made in the rebate of an opening frame of a door, window or the like, said device being intended to be secured to the rear of a headrest using appropriate means and comprising means for holding and guiding an operating rod relative to said headrest and a guide stud of at least one screw fixing coming through an opening provided for this purpose in this headrest.

A device of this kind is described, for example, in the document FR-A-2,747,723.

The present invention will find its application in the field of building hardware and relates, more particularly, to the locking fittings, of the lever type or the bolt lock.

In this connection, such cremone bolts or bolts-locks usually include a central control mechanism, housed in a housing above and / or below which rods of operation extend, the displacement of which by the through said control mechanism, is passed on to locking members, such as rollers, bits or the like. It is also frequent that the free ends of these operating rods also act, like locking members, to cooperate, in the locked position, with appropriate strikes.

In many cases, the aforementioned elements of a bolt or bolt lock take position in a recessed groove formed in the rebate of an opening, door, window or the like and are sheltered by means of a headrest coming from close said groove.

In particular, such a headrest includes orifices for the passage of fixing screws making it possible to make the assembly integral with the joinery. Also, in line with these orifices, an operating rod has, for its part, oblong slots allowing the passage of these fixing screws, without however preventing their movement between in particular a locking position and an unlocking position.

In this regard, it should be noted that if the end of an operating rod is intended, in order to define a locking member, to be protruding, for example, at the upper or lower end of a amount of the opening frame, door, window or the like, accommodating said lever or lever-lock, it is necessary to ensure its guiding with respect to the corresponding end of the headrest, but also to perfect the fixing of the latter on woodwork.

In particular, a rod exit guide is used, for this function, usually in the form of a square piece covering the angle of the opening frame at which said end is able to project itself. operating rod. Also, one of the wings of this square piece comes to apply externally on the headrest. In addition, for good mechanical strength of the assembly, each of the wings of this square part is provided with an opening for the passage of a fixing screw coming to cooperate with the joinery. Under these conditions, one of these fixing screws comes through, at the same time, the headrest and the operating rod, the latter being necessarily provided with an oblong hole to the right of this screw to give it the required mobility.

It is also known, from document FR-A-2,747,723, a rod exit guide in the form of a fork comprising a base adapted to be housed in the bottom of the embedding groove provided at the joinery . This rod exit guide is also provided with a wing extending parallel to said base while covering, on the external side, the end portion of the rod, while a guide strip extends between the base and the wing and has a through opening adapted to the passage of the end of this rod. The base also has an orifice for the passage of a fixing screw located beyond the wing in order to be accessible.

As for the rod, it also has an orifice allowing the passage of this screw and the fixing tool when the cremone bolt is placed on the opening. In fact, as appears from the description of this document FR-A-2,747,723, this rod exit guide is particularly suitable for a cremone bolt provided with a rod of particular configuration and devoid, moreover, of a headrest.

• guider une vis de fixation venant traverser ladite têtière en direction de la menuiserie ;
• garantir la liaison têtière-tringle de manoeuvre ;
• assurer le guidage de cette tringle de manoeuvre par rapport à ladite têtière.

It should also be noted that these cremone bolts or locks of the state of the art are usually provided with screw guides which are fixed by riveting to the rear of the headrest and which fulfill the following functions:

• guide a fixing screw coming through said headrest in the direction of the joinery;
• guarantee the connection of the headrest to the operating rod;
• guiding this operating rod relative to said headrest.

Note that such a screw guide is fitted into an oblong slot in the operating rod before being riveted to the headrest, which makes it possible, precisely, to ensure the above-mentioned guiding function.

In the end, as appears from the above description, this screw guide only provides basic guidance of the operating rod relative to the headrest. In addition, it can be the cause of an incorrect operation of the cremone bolt or cremone bolt, especially when this is subject to automated removal from a joinery.

More specifically, the guide function of the fixing screw is ensured by means of a guide stud adjusted to the transverse width of the oblong slot in the operating rod and has an opening for the passage of said fixing screw. In addition, this guide pad often receives means allowing its riveting at the level of the headrest.

Insofar as an operating rod has a limited width, the width of the oblong opening made in the latter for the passage of a fixing screw is also necessarily reduced, often barely greater than the diameter of said screw. fixation. Also, under these conditions, the orifice made in the guide stud and whose section is necessarily adapted, creates, at the longitudinal sides of this stud of the openings, in the sense that there is absence of surfaces for the guide of the fixing screw.

It is for this reason that, as indicated above, there is a risk of incorrectly fitting this fixing screw. If this occurs at one end of the operating rod, the latter is guided imperfectly, which may result in a malfunction of the cremone bolt or cremone bolt.

Anyway, and as is apparent from the above description, the function, on the one hand, of maintaining and guiding the end of an operating rod relative to the corresponding end of a headrest and, on the other hand, the fixing function, more particularly for guiding the fixing screws, have hitherto been provided by two separate parts, the mounting of which must be ensured.

Ultimately, the present invention is intended to respond to the aforementioned problems through a fixing and guiding device which is not only capable of ensuring perfect retention of the end of a rod maneuver intended to define a locking member but, in addition, to contribute to the connection and guidance of an operating rod relative to the headrest which houses it.

In short, this device is intended to fulfill the functions of a screw guide insofar as it can receive, in addition, at least one fixing screw intended to rigidly and securely fix the assembly in a groove provided for this purpose in the opening frame. In particular, through this function of the screw guide, the invention is intended to provide a solution to the various constraints linked to an automated mounting of a locking fitting on a joinery.

• un premier canal de section en « U » comportant un fond venant en applique au niveau de la face arrière de la têtière, depuis ce fond s'étendant, d'une part, deux parois parallèles entre lesquelles est à même de coulisser la tringle de manoeuvre et, d'autre part, le plot de guidage d'au moins une vis de fixation, de manière apte à traverser une lumière oblongue dans ladite tringle de manoeuvre ;
• et un second canal de section en « U » comportant deux parois parallèles s'étendant depuis un fond et dont le chant supérieur est prévu apte à prendre appui sur la face arrière de la têtière, tandis que la tringle de manoeuvre est amenée à coulisser dans l'espace entre ces parois latérales, d'une part, et entre la têtière et le fond de ce second canal, d'autre part.

To this end, the invention relates to a device for fixing and guiding the ends of a fitting of the cremone bolt or cremone bolt type capable of fitting into a groove made in the rebate of a frame opening a door, window or the like. , said device being intended to be secured to the rear of a headrest using appropriate means and comprising means for holding and guiding an operating rod relative to said headrest and a guide stud of at least one fixing screw coming through an opening provided for this effect in this headrest, characterized in that it is defined by a profile forming:

• a first U-shaped section channel comprising a bottom applied at the rear face of the headrest, from this bottom extending, on the one hand, two parallel walls between which is able to slide the rod maneuver and, on the other hand, the guide stud of at least one fixing screw, so as to pass through an oblong lumen in said maneuvering rod;
• and a second U-shaped channel channel comprising two parallel walls extending from a bottom and the upper edge of which is provided capable of bearing on the rear face of the headrest, while the operating rod is made to slide in the space between these side walls, on the one hand, and between the headrest and the bottom of this second channel, on the other hand.

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

According to an advantageous embodiment, between the two funds of the U-shaped section channels defining the profile of the device, there is a gap corresponding at least to the thickness of the operating rod, this for mounting on the latter of said operating rod guide device and fixing screw, according to the invention.

The advantages arising from the present invention consist in that the fixing screw for passing through the guide stud necessarily passes through an opening of suitable section made in the bottom of the first channel. Also, this opening, of strictly circular section, is capable of ensuring perfect guidance of this fixing screw.

In addition, through the parallel side walls of each of the channels corresponding to the profile defining the device, this is able to guarantee perfect lateral support and, therefore, guiding of the operating rod.

It should also be observed that the upper edge of the parallel walls of the second channel can receive fixing and / or positioning lugs relative to the headrest on the rear face of which they come to bear.

• la figure 1 est une vue schématisée en élévation et en coupe longitudinale dudit dispositif conforme à l'invention, appliqué à une ferrure de verrouillage de type crémone ou crémone-serrure;
• la figure 2 est une vue schématisée et de dessus du dispositif illustré dans la figure 1 ;
• la figure 3 est une représentation schématisée et en coupe selon III-III de la figure 1.

The present invention is explained in more detail in the description which follows, relating to an embodiment given by way of example and illustrated in the figures of the drawing appended hereto, in which:

• Figure 1 is a schematic view in elevation and in longitudinal section of said device according to the invention, applied to a locking fitting of the bolt type or the bolt lock;
• Figure 2 is a schematic top view of the device illustrated in Figure 1;
• FIG. 3 is a diagrammatic representation in section along III-III of FIG. 1.

As can be seen from FIG. 1 of the attached drawing, the present invention relates to the field of locking fittings, of the cremone bolt or cremone bolt type, which, under the influence of a control mechanism housed in a central housing 1 make it possible to communicate a movement to operating rods 2 extending above and / or below this housing, such operating rods 2 coming to reflect their movement on locking members, such as rollers, bits or like.

Very often this cremone bolt or cremone bolt takes position in a recessed groove provided for this purpose in the rebate of an opening, door, window or the like, groove in which it is sheltered by means of a headrest 3 of which can be made integral with the housing 1.

The invention relates, more particularly, to a device 4 for fixing and guiding provided capable of being attached to the rear and to one end of the headrest 3 by appropriate means 5, in particular by riveting. This device 4 is intended to contribute, on the one hand, to maintaining and guiding the operating rod 2 relative to this headrest 3 and, on the other hand, to guiding a fixing screw coming through an opening 6 in the latter to come and stay at the bottom of the groove and thus make the assembly integral with the joinery.

Also, this device 4 comprises, at least, means 7 for holding and guiding an operating rod 2 and a guide stud 8 of at least one fixing screw, this guide stud 8 extending to right of the opening 6, behind the headrest 3.

Note that at the right of this guide stud 8 the operating rod 2 has, for its part, an oblong opening 9 sized to allow the passage of this guide stud 8 while allowing axial movement of the operating rod 2 to allow it to move from its locked position to its unlocked position and vice versa.

In particular, it is visible in FIGS. 2 and 3 that, because of the dimensions necessarily reduced in width of the operating rod 2, the oblong opening 9 made in the latter also has a small cross section in width. Also, the guide pad 8 cannot have a thickness 10 which is barely adjusted to the section 11 of the screw of fixation. Under these conditions the perforation 12 present in this guide stud 8 for the passage of this fixing screw, generates, on the longitudinal sides 13, 14 of said stud 8, interruptions 15 of the guide surface of the screw.

According to the invention, the device 4 is in the form of a profile 16 defining a first channel 17 of "U" section having a bottom 18 intended to come into contact with the rear face 19 of the headrest 3 and from which s 'extend, perpendicularly, two parallel walls 20, 21 between which is able to slide the operating rod 2.

In the extension of this first channel 17, this profile 16 defines a second channel 22 of “U” section, also comprising two parallel walls 23, 24 corresponding substantially to the extension of the walls 20, 21 and, between which takes position, there again, the operating rod 2. In fact, these parallel walls 23, 24 come, in this case, to bear, at the height of their upper edge 25, on the rear face 19 of the headrest 3, while the bottom 26 from which they extend traps, with the headrest 3, the operating rod 2.

In the end, through these parallel walls 20, 21 and 23, 24, corresponding to this first and to the second channel 17, 22, the operating rod 2 is perfectly axially guided. It is also well maintained relative to the headrest 3 through the bottom 26 corresponding to the second channel 22.

It should be noted that the term profile used to designate the shape of the device should not be interpreted in a restrictive sense, since this device could also result from a molding process.

It will be noted, in particular, that the opening 6 in the headrest 3 communicates with the guide stud 8 through an orifice 27 of section adapted to that 11 of the fixing screw.

It is advantageously respected between the bottom 18 of the first channel 17 and the bottom 26 of the second channel 22, in the longitudinal direction of the operating rod 2, a gap 34 corresponding at least to the thickness of the latter in order to allow the mounting of the device on such an operating rod 2.

As a result, as a result, perfect guidance of the latter.

In FIGS. 1 and 2 there is also illustrated a riveting stud 28 surmounting this bottom 18 of the first channel 17, on its side 29 intended to come into contact with the faceplate 3, this riveting stud 28 being intended to come to be positioned in a suitable perforation in the latter.

In addition, the passage opening 27 for the fixing screw in this bottom 18 of the first channel 17 can open out through a positioning pad 30, at this side 29 of said bottom 18. This positioning pad 30 comprises a thickness substantially equal to that of the headrest 3, which then comprises an opening 6 adjusted to the section of this stud 30.

Such a feature makes it possible to perform in this positioning pad 30 a milling 31 for receiving the head of the fixing screw. In fact, such a design greatly facilitates the production by stamping of the headrest 3. Indeed, the latter is brought to undergo, usually, significant deformations when it is necessary to print there a orifice with frustoconical mouth .

As can be seen again in these FIGS. 1 and 2, but also in FIG. 3, the parallel side walls 23, 24 of the second channel 22 can be overcome at the height of their upper edge 25, by at least one fixing lug and / or riveting 32 intended to be housed in openings or in notches 33 made in the longitudinal edges of the headrest 3.

Finally, insofar as such a device, in accordance with the invention, makes it possible to improve, not only, the guiding of a fixing screw, but also, the guiding and the maintenance of an operating rod relative to its headrest, it can advantageously constitute a rod exit guide at the free end of said headrest 3.

It emerges from the above description that the device according to the invention is very particularly suitable for securely holding the end of an operating rod intended to define a locking member.

It should be noted that if this fixing and guiding device according to the invention can be designed in one piece, in particular by a molding process of plastic or metallic material, it is still conceivable to make it in two pieces, one of which defines the guide pad 8 of the fixing screw, this being surmounted by the positioning pad 30 as well as the riveting pad 28. Under these conditions, the bottom 18 of the first channel 17 defined by the profile 16, corresponding to the second piece, has openings for the passage of this positioning pad 30 and riveting 28. In particular, the section 16 can result from a cutting-stamping process of a metal strip.

Claims (9)

1. Fastening and guiding device for the ends of a fitting such as an espagnolette or espagnolette-lock, capable of being inscribed in a groove in the fillister of a frame of a door, window or the like, said device (4) being aimed at being made integral with the rear side of a faceplate (3) with the help of adequate means (5), namely by riveting, and including means (7) for maintaining and guiding an operating rod (2) with respect to said faceplate (3) and a stud for guiding (8) at least one fastening screw passing through an opening (6) provided for this purpose in this faceplate (3), characterised in that it is defined by a profile bar (16) forming :

   - a first channel (17) with a U-shaped cross-section including a bottom (18) inserted at the level of the rear face (19) of the faceplate (3), from this bottom (18) extending, on the one hand, two parallel walls (20, 21) between which the operating rod (2) is capable of sliding and, on the other hand, the stud (8) for guiding at least one fastening screw in a way capable of passing through an elongated slot (9) in said operating rod (2);

   - and a second channel (22) with a U-shaped cross-section including two parallel walls (23, 24) extending from a bottom (26) and the upper edge (25) of which is designed capable of resting against the rear face (19) of the faceplate (3), while the operating rod (2) has to slide in the space between these side walls (23, 24), on the one hand, and between the faceplate (3) and the bottom (26) of this second channel (22), on the other hand.
2. Device according to claim 1, characterised in that between the bottom (18) of the first channel (17) and the bottom (26) of the second channel (22), in the longitudinal direction of the operating rod (2), is maintained a distance (34) corresponding at least to the thickness of said operating rod (2) with a view to mounting said device (4) on the latter.
3. Device according to any of the preceding claims, characterised in that the guiding the stud (8) includes a perforation (12) adjusted to the cross-section (11) of the fastening screw and communicating with the opening (6) in the faceplate (3) through an opening (27) with a cross-section also adapted to that (11) of the fastening screw.
4. Device according to claim 3, characterised in that the opening (27) for the passing through of the fastening screw ends, on the side (29) of the bottom (18) corresponding to the first channel (17) and aimed at being applied against the faceplate (3), through a positioning stud (30) having a thickness substantially equal to that of the faceplate (3), which includes an opening (6) adjusted to the cross-section of this stud (30).
5. Device according to claim 4, characterised in that the positioning stud (30) includes a countersinking (31) for receiving the head of the fastening screw.
6. Device according to any of the preceding claims, characterised in that the parallel walls (23, 24} of the second channel (22) are topped, at the level of their upper edge (25), by at least one fastening or riveting lug (32) aimed at being accommodated in openings or in notches (33) provided for in longitudinal edges of the faceplate (3).
7. Device according to any of the preceding claims, characterised in that it substantially forms an exit guide for an operating rod (2) at a free end of the faceplate (3).
8. Device according to any of the preceding claims, characterised in that it is made of one single part by a moulding process for plastic or metallic material.
9. Device according to any of claims 1 to 7, characterised in that it is made of two parts, one of which defining the stud for guiding (8) the fastening screw, the latter being topped by a positioning stud (30) aimed at co-operating with the opening (6) in the faceplate (3) as well as with a riveting stud (28), the bottom (18) of the first channel (11) defined by the profile bar (16) corresponding to the second part including openings for the passing through of said positioning stud (30), on the one hand, and of the riveting stud (28), on the other hand.