EP2554768A1 - Locking/unlocking device for a wing with a retractable handle - Google Patents

Abstract

The device has an elongated actuator (1) whose open position is opposite to a closed position according to an actuation axis (21). A cover (3) includes an access opening (22) to retract the actuator in an end wall in the open position and the closed position. The actuator and an actuating element are mechanically coupled such that angle of rotation of the actuating element about the actuation axis by actuating movement of the actuating element between the closed and open positions is strictly less than angle of rotation of the actuator about an axis by the actuating movement. The actuator ensures the mechanical transmission between the actuating element outside the cover and a locking mechanism mounted on an inside of an upright of the door.

Description

The invention relates to a locking / unlocking device for sliding leaf.

The openings often comprise a frame formed of hollow sections with thin walls, and are equipped with a locking fitting embedded in a mounting slot, formed through a front wall of the opening. These doors are generally provided, for their locking / unlocking, as well as to allow opening and closing maneuvers of the opening, a maneuvering member of the cremone handle type protruding from the front wall or handle bowl recessed in an amount of the opening.

So, EP 0 801 195 proposes a rotary operating handle of the cremone type for moving a drive member, and transmission means mechanically connecting each drive member to at least one control rod. This handle makes it possible to lock and unlock the opening by a rotation of the handle. However, such a handle is always projecting from the front wall of the opening. However, when the opening is mounted parallel to a second juxtaposed panel (fixed or movable) on the same frame along which it slides, said handle prevents the complete sliding of the opening behind the second panel.

Likewise, certain handles known as cup handles, that is to say comprising an indentation allowing the passage of a user's fingers for opening and closing maneuvers, as described by FR 2,826,995 , offer only a very small maneuverability of the actuator. This handle is also impractical to use, only the fingertips can be inserted into the notch. The longitudinal actuation in translation of the control slide requires to provide significant efforts only with the fingertips.

In addition, the bowl actuator described by FR 2,826,995 is not compatible to be mounted with a locking mechanism of the espagnolette type.

The invention therefore aims to overcome these disadvantages.

The invention aims to provide a locking / unlocking sliding sash device that is easy to maneuver.

The invention also aims to provide such a device that allows to retract a sliding leaf behind a panel along which it slides.

The invention also aims at providing such a device that is compatible with a cremone type mechanism.

The invention also aims to provide such a device that allows unlocking and easy opening of a sliding leaf.

The invention also aims at providing such a device which can be mounted on metallic openings, in particular aluminum alloy, as well as on synthetic openings, in particular made of PVC, wood, or others, including assemblies. of these materials.

• un organe de manoeuvre,
• un mécanisme de verrouillage/déverrouillage adapté pour pouvoir être inséré dans l'ouvrant derrière une paroi frontale de l'ouvrant, et comprenant:
  • au moins un pêne, et
  • des moyens de transmission :
    • ■ adaptés pour, sous l'effet d'un déplacement de l'organe de manoeuvre, déplacer chaque pêne entre une position verrouillée et une position déverrouillée,
    • ■ comprenant au moins un organe d'actionnement rotatif autour d'un axe, dit axe d'actionnement, orthogonal à la paroi frontale de l'ouvrant, ledit organe d'actionnement étant entraîné en rotation autour dudit axe d'actionnement par l'organe de manoeuvre,
• un parement extérieur adapté pour pouvoir être encastré dans une lumière de montage ménagée dans la paroi frontale de l'ouvrant,

caractérisé en ce que :

• l'organe de manoeuvre est mobile autour de l'axe d'actionnement entre une position, dite position d'ouverture, correspondant à une position déverrouillée de chaque pêne, et une position, dite position de fermeture, opposée selon l'axe d'actionnement à ladite position d'ouverture et correspondant à une position verrouillée de chaque pêne,
• le parement présente un logement d'accès adapté pour escamoter l'organe de manoeuvre dans la paroi frontale en position d'ouverture et en position de fermeture,
• l'organe de manoeuvre et l'organe d'actionnement sont accouplés mécaniquement de sorte que l'angle de rotation de l'organe d'actionnement autour de l'axe d'actionnement par un déplacement de l'organe de manoeuvre entre une position de fermeture et une position d'ouverture est strictement inférieur à l'angle de rotation de l'organe de manoeuvre autour de l'axe d'actionnement par ledit déplacement de l'organe de manoeuvre entre une position de fermeture et une position d'ouverture.

The invention therefore relates to a locking / unlocking device for a sliding leaf comprising:

• an actuator,
• a locking / unlocking mechanism adapted to be inserted into the opening behind a front wall of the door, and comprising:
  • at least one bolt, and
  • transmission means:
    • Adapted to, under the effect of a displacement of the operating member, move each bolt between a locked position and an unlocked position,
    • ■ comprising at least one actuating member rotatable about an axis, said operating axis, orthogonal to the front wall of the opening, said actuating member being rotated about said actuating axis by the actuator,
• an outer face adapted to be recessed in a mounting slot in the front wall of the opening,

characterized in that

• the operating member is movable about the axis of actuation between a position, called the open position, corresponding to an unlocked position of each bolt, and a position, called the closed position, opposite along the axis of actuation at said open position and corresponding to a locked position of each bolt,
• the facing has an access housing adapted to retract the operating member in the front wall in the open position and in the closed position,
• the operating member and the actuating member are mechanically coupled so that the angle of rotation of the actuating member about the actuating axis by a displacement of the operating member between a position closure and an open position is strictly less than the angle of rotation of the actuating member about the axis of actuation by said displacement of the actuating member between a closed position and a position of opening.

In particular, a device according to the invention is suitable for a sliding leaf on a frame in a sliding direction.

Throughout the text the expression "between" a first position and a second position is used to designate the two directions of movement between these two positions. Thus, for example the bolts are movable between a locking position and an unlocking position, that is to say that they can move from a locking position to an unlocking position and vice versa.

The transmission means are advantageously interposed between the operating member and each bolt so as to transform the movements and transmit the forces of the actuating member bolts.

Advantageously and according to the invention, the actuating member passes through the facing. Thus, the actuating member ensures the mechanical transmission between the maneuvering member outside the facing and the mechanism mounted inside (behind a front wall) of the amount of the opening.

Advantageously and according to the invention, the facing covers, from the outside of the front wall, the edges of the mounting light, and masks the locking mechanism, so that the facing is a finishing element intended to improve the aesthetics of the opening. The facing is particularly adapted to be fixed to an opening, including the amount of an opening.

Advantageously and according to the invention, the opening and closing positions of the operating member are 180 degrees from one another about the actuating axis.

Cremone type mechanisms generally provide a displacement of the operating member on an angular amplitude of less than 180 degrees, in particular 90 degrees around the axis of actuation. The operating member is therefore in the sliding axis of the opening when in the open position or in the closed position. Or it can not be retracted in the opening in such a position because the amounts of the opening are generally limited in width to give more space to a glazed surface.

This is why the opening and closing positions (respectively corresponding to unlocking and locking positions of the bolts) are opposite to one another, so that the actuating device according to the invention is always in the main direction of the amount of the opening.

In particular, advantageously and according to the invention, the opening and closing positions of the operating member are substantially orthogonal to a direction of sliding of the opening.

They are notably substantially vertical for a horizontally sliding leaf, so that the actuating member has a high position and a low position. Thus, the access slot of the siding allows to slide the fingertips to pull / push on the opening in order to open or close, as soon as it is unlocked.

However, the cremone type mechanisms require a rotational movement of the actuating member a quarter of a turn around the axis of actuation.

Thus, advantageously and according to the invention, the operating member and the actuating member are mechanically coupled so that the angle of rotation of the actuating member around the actuating axis by a displacement of the actuating member between a closed position and an open position is strictly less than the rotation angle of the actuating member around the actuating axis by said displacement of the actuating member. maneuvering between a closed position and an open position.

In a device according to the invention, there is therefore an angular clearance between the rotation of the operating member and the rotation of the actuating member. Many structural embodiments can be envisaged to achieve such an angular clearance.

In particular, advantageously and according to the invention, the operating member and the transmission means are adapted so that the actuating member is driven with an angular amplitude less than 180 degrees around the actuating axis by a moving the actuating member between a closed position and an open position.

Thus, the invention makes it possible, for the first time, to obtain a device making it possible at one and the same time to retract the operating member in the amount of the door in two opposite positions, while being in conformity with the espagnolette mechanisms in which the actuating member is actuated by 90 degrees between a position corresponding to a locking position of the bolts and a position corresponding to an unlock position bolt.

Thus, a cremone mechanism mounted in an opening can be improved by providing a facing, an operating member and an actuator according to the invention. Likewise, the current cremone mechanisms can be used with these three elements of the invention.

In this particularly advantageous embodiment, with each movement of the operating member in one direction between an open position and a closed position, the transmission between the operating member and the actuating member has a play. angular 90 degrees and an actuating stroke of 90 degrees. That is to say that during the 180-degree displacement of the actuating member between a closed position and an open position, the latter performs a 90 degree stroke without transmission towards the actuating member, and a stroke of 90 degrees with integral rotary transmission to the actuator member along the axis of actuation.

Also, advantageously and according to the invention, the actuating member being of elongate shape, the access housing of the facing is oblong to be able to retract the operating member in the open position and in the closed position.

An elongated handle member, that is to say in the form of a handle, is particularly advantageous in that it allows a better grip by a user.

Advantageously and according to the invention, the operating member is preferably projecting from the front wall of the opening when it is moved between a closed position and an open position.

An oblong access slot also allows the passage of several fingertips to pull (or push) the opening opening or closing. In particular, when the bolts are in the unlocked position, the operating member is in the open position, and the volume of the access housing for accommodating the operating member in a closed position is available for the passage of fingers.

Therefore, the facing (and therefore the access housing) are arranged in the direction of the length in the main direction of an amount of the opening orthogonal to the sliding direction of the opening.

Many transmission links between an operating member and an actuating member according to the invention can be envisaged so as to obtain this function.

• l'organe d'actionnement présente une tête d'un côté extérieur au parement,
• l'organe de manoeuvre présente une cavité adaptée pour pouvoir :
  • accueillir la tête de l'organe d' actionnement,
  • transmettre une rotation de l'organe de manoeuvre autour de l'axe d'actionnement à l'organe d' actionnement.

Advantageously, a device according to the invention is also characterized in that :

• the actuating member has a head on one side outside the facing,
• the operating member has a cavity adapted to be able to:
  • accommodate the head of the actuator,
  • transmit a rotation of the operating member around the actuating axis to the actuating member.

The head of the actuating member is an end portion of the actuating member having a mean diameter greater than the diameter of the remainder of the actuating member. The actuating member traversing the facing, this head is advantageously mounted on the outer side of the facing, that is to say on the front side of the opening.

The cavity of the operating member may be disposed at all points of the actuating member including an elongated actuating member. It is advantageously at one of the longitudinal ends of the operating member. However, nothing prevents to achieve in other places of the maneuvering member for example in the middle of the latter which then has a T-shape and can then be manipulated as a corkscrew.

The cavity of the operating member and the head of the actuating member are particularly adapted to be able to ensure transmission of the operating member to the actuating member on at least a portion of the stroke of the organ operating between a closed position and an open position.

• la cavité de l'organe de manoeuvre présente des pans, dits pans d'appui,
• la tête de l'organe d'actionnement présente :
  • des méplats périphériques par rapport à l'axe d'actionnement, adaptés pour venir en butée sur des pans d'appui,
  • un rayon maximal supérieur à la distance d'au moins un méplat par rapport à l'axe d'actionnement.

In particular, a device according to the invention is advantageously characterized in that:

• the cavity of the maneuvering member has sections, called support faces,
• the head of the actuating member has:
  • peripheral flats with respect to the actuating axis, adapted to abut on supporting flanges,
  • a maximum radius greater than the distance of at least one flat relative to the actuating axis.

Advantageously, the support faces of the cavity are also arranged peripherally with respect to the axis of actuation, that is to say that their respective planes are non-intersecting with the axis of actuation, so that can be substantially parallel to the flats of the head of the actuating member.

Advantageously and according to the invention, the head of the actuating member advantageously has a radius which varies along its contour around the axis of actuation. That is, all the points on the surface of the contour of the head are not at the same distance from the axis of operation. The maximum radial dimensions of the head are advantageously greater than the minimum radial distance of the flats, that is to say the minimum distance between a flat and the axis of actuation.

Thus during a rotation of the operating member relative to the actuating member, the head abuts on at least one flat of the cavity of the operating member. In particular, at least one flat part of the head is adapted to abut on a support portion of the cavity.

• la tête de l'organe d'actionnement présente 2n méplats périphériques, n étant un entier supérieur ou égal à 2,
• la cavité de l'organe de manoeuvre présente n pans d'appui adaptés pour, par une rotation de l'organe de manoeuvre autour de l'axe d'actionnement, venir en appui avec :
• un premier groupe de n méplats dans un sens de rotation selon l'axe d'actionnement,
• un second groupe de n méplats, alternés avec les méplats du premier groupe, dans un second sens de rotation selon l'axe d'actionnement.

In particular, advantageously and according to the invention:

• the head of the actuating member has 2n peripheral flats, n being an integer greater than or equal to 2,
• the cavity of the actuating member has n support faces adapted for, by a rotation of the actuating member around the actuating axis, to bear with:
• a first group of n flats in a direction of rotation along the axis of actuation,
• a second group of n flats, alternated with the flats of the first group, in a second direction of rotation along the axis of actuation.

The head of the actuating member thus has at least four peripheral flats. In particular embodiments in which the desired angular clearance between the operating member and the actuating member is less than 90 degrees, said head may also have six, eight, ten (or more) flats.

The cavity of the actuating member has a number n of bearing faces equal to half the number of flats of the head. Each support section is adapted to be able to abut on two flats (these two flats only abut on this support panel): each support panel abuts on a first of these two flats in one direction moving a position of closing to an open position, and on the second of these two flats in the opposite direction of displacement of an open position to a closed position.

• un premier groupe au contact des pans d'appui dans un premier sens de déplacement de l'organe de manoeuvre autour de l'axe d'actionnement d'une position de fermeture à une position d'ouverture,
• un second groupe au contact des pans d'appui dans un second sens de déplacement de l'organe de manoeuvre autour de l'axe d'actionnement d'une position d'ouverture à une position de fermeture.

Thus we distinguish two groups of flats alternate peripherally:

• a first group in contact with the bearing flanges in a first direction of movement of the operating member around the axis of actuation from a closed position to an open position,
• a second group in contact with the support sections in a second direction of movement of the operating member about the axis of actuation from an open position to a closed position.

In addition, advantageously and according to the invention, said flats are joined to each other alternately by an element selected from a ridge and a rounded.

In particular, the head has, between two successive flats, alternately an edge then a rounded.

• la distance minimale entre deux arêtes successives de la tête est supérieure à la distance minimale entre les milieux de deux pans d'appui successifs de la cavité,
• et la distance minimale entre deux arrondis successifs de la tête est inférieure à la distance minimale entre les milieux de deux pans d'appui successifs de la cavité.

Also, advantageously and according to the invention:

• the minimum distance between two successive edges of the head is greater than the minimum distance between the media of two successive support faces of the cavity,
• and the minimum distance between two successive roundings of the head is less than the minimum distance between the media of two successive support sections of the cavity.

In particular, the minimum distance between a rounding and the actuating axis is less than the minimum distance between a support face opposite the rounding and the actuating axis, which is itself smaller than the minimum distance between the actuating axis and each of the two edges abutting on said support panel.

In this way, when the operating member is moved, the support sections move relative to the flats of the actuating member by passing rounded faces and thus without causing the displacement of the actuating member. . On the other hand, when the support faces meet the edges, they abutting on the flats located upstream (in this direction of rotation) of said edges, so that the actuating member is driven.

The angular clearance of such a device therefore depends on the integer n. If n is two, the cavity has at least two support faces and the actuator four flats, so that the angular clearance is 90 degrees. If n is equal to three, the cavity has at least three support faces and the actuator six flats, so that the angular clearance is 60 degrees. If n is equal to four, the cavity has at least four support faces and the actuator eight flats, so that the angular clearance is 45 degrees. If n is equal to five, the cavity has at least five support faces and the actuator ten flats, so that the angular clearance is 36 degrees, etc.

• la cavité présente deux pans d'appui sensiblement parallèles,
• la tête présente quatre méplats équirépartis périphériquement.

Advantageously and according to the invention:

• the cavity has two substantially parallel support sections,
• the head has four flats uniformly distributed peripherally.

Thus, the head of the actuating member has two opposite edges with respect to the axis of actuation, and two opposite roundings with respect to the axis of actuation and direction substantially orthogonal to the direction of the two edges.

Two opposite flats of the four flats of the head abut each on one of the two bearing faces of the cavity in a direction of rotation of the actuating member, the two other flats (opposite respectively to the first two flats by relative to the axis of actuation) abut on the support faces of the cavity in a second direction of rotation of the actuating member.

In this configuration, the device according to the invention has an angular clearance of 90 degrees.

In addition, advantageously and according to the invention, the cavity of the actuating member has a collar projecting from the bearing faces on which a shoulder of the base of the head of the actuating member comes into longitudinal abutment according to the actuating axis.

The head of the actuating member having a mean diameter greater than the rest of the actuating member, its junction with the rest that the actuating member is a shoulder. This shoulder is in abutment on a collar advantageously formed projecting from the base of the support sections of the actuating member. This flange of the cavity ensures that the head of the actuating member is permanently housed in the cavity without being extracted.

The actuating member being advantageously retained on the inner side of the facing, the flange also makes it possible to keep the actuating member retracted in the open and closed position, and as a return towards the access housing in any position.

In particular, advantageously and according to the invention, device further comprising a return spring of the actuating member towards the inside of the opening according to the axis of actuation.

Said return spring is advantageously a compression spring disposed along the axis of actuation, bearing on an inner face of the facing on the one hand and on the actuating member (or a part integral with the member of actuation along the axis of actuation) on the other hand.

The facing advantageously has a through hole of the actuating member. This bushing orifice advantageously has a diameter smaller than the minimum diameter of the head of the actuating member, so as to prevent the actuating member from completely passing through the facing of the end face towards the inside of the upright.

At rest, in particular in the closed position and opening of the operating member, the actuating member is held in abutment against the facing by the return spring. The operating member is held against the facing in the access housing by means of the flange of its cavity interposed between the front face of the facing and the shoulder of the head of the actuating member.

Furthermore, advantageously and according to the invention, the actuating member has, on an end opposite the head, two elastic casing tabs extending along the axis of actuation and provided with casing lugs orthogonal to the actuation axis.

Also the actuating member has it, except at the level of its head, a diameter smaller than the diameter of the through-hole of the facing, so as to be mounted through on the facing by the front face of the facing .

Advantageously, a device according to the invention further comprises a parallelepipedal part comprising a casing housing adapted to receive said casing tongues, said parallelepipedal piece being adapted to transmit a rotation of the actuating member about the axis. actuating the rest of the transmission means.

The casing between the actuating member and the parallelepipedal piece is elastic. The resulting interlocking may be permanent, and the tongues may be in elastic support or not in the casing housing.

Many other modes of assembly, in particular implementing other complementary forms between the actuating member and said parallelepipedal piece can be envisaged: for example by gluing, by assembly with the aid of a pin, by screwing etc. or any other equivalent means.

Said parallelepipedal part advantageously has four faces equidistant from the axis of actuation. It is commonly called "square" in locksmithing and is adapted to cooperate with a cremone type mechanism.

The return spring of the actuating member is for example advantageously bearing against said parallelepiped piece.

In addition, in order to correctly transmit a rotational movement of the actuating member around the actuating axis, the casing tongues each have two orthogonal flats with the casing lugs and the actuating pin. , said flats being adapted to abut on internal faces of the casing housing of the parallelepipedal part.

Furthermore, advantageously, a device according to the invention is also characterized in that the operating member is also mounted at least partially rotatable about an axis orthogonal to the actuating axis.

This makes it possible to release the operating member from its closed and open positions retracted into the access housing.

Thus, the operating member can be rotated at least partly along an axis orthogonal to the actuating axis, so that only a portion of the actuating member in which the cavity is formed remains in the housing of access when moving between a closed position and an open position.

Such an operating member is therefore rotatable about an axis parallel to the axis of sliding of the opening in a closed position to exit the access housing, then it is rotatable again about the same axis to return to retracted position in an open position opposite to the closed position.

In particular, an elongate operating member protrudes from the front wall of the opening when moving between a closed position and an open position.

Such an actuator thus advantageously has a ball-type connection with the facing, particularly advantageous when the cavity is formed in a longitudinal end of the operating member. The facing advantageously has a circular housing cooperating with a substantially spherical longitudinal end of the operating member.

The invention also relates to a locking / unlocking device characterized in combination by all or some of the features mentioned above or below.

• les figures 1a, 1b, 1c, 1d sont des représentations schématiques en perspective des éléments de manoeuvre et d'actionnement d'un dispositif de verrouillage/déverrouillage selon un mode de réalisation conforme à l'invention,
• la figure 2 est une représentation schématique en coupe longitudinale d'un organe de manoeuvre et d'un organe d'actionnement selon un mode de réalisation conforme aux figures 1a à 1d,
• la figure 3 est une représentation schématique en coupe horizontale selon le plan III d'un organe de manoeuvre et d'un organe d'actionnement selon un mode de réalisation conforme aux figures 1a à 1d et 2,
• la figure 4 est une représentation schématique en perspective d'un organe d'actionnement selon un mode de réalisation conforme aux figures 1a à Id, 2 et 3,
• la figure 5 est une représentation schématique en coupe longitudinale d'un organe de manoeuvre selon un mode de réalisation conforme aux figures 1a à Id, 2 et 3,
• la figure 6 est une représentation schématique en coupe verticale selon le plan VI d'un organe de manoeuvre selon un mode de réalisation conforme aux figures 1a à Id, 2, 3 et 5,
• la figure 7 est une représentation schématique en coupe par un plan orthogonal à l'axe d'actionnement d'un deuxième mode de réalisation d'un assemblage entre un organe de manoeuvre et un organe d'actionnement conforme à l'invention,
• la figure 8 est une représentation schématique en coupe par un plan orthogonal à l'axe d'actionnement d'un troisième mode de réalisation d'un assemblage entre un organe de manoeuvre et un organe d'actionnement conforme à l'invention.

Other objects, features and advantages of the invention will appear on reading the following non-limiting description which refers to the appended figures in which:

• the Figures 1a, 1b, 1c, 1d are schematic representations in perspective of the actuating and actuating elements of a locking / unlocking device according to an embodiment according to the invention,
• the figure 2 is a schematic representation in longitudinal section of an operating member and an actuating member according to an embodiment in accordance with Figures 1a to 1d ,
• the figure 3 is a schematic representation in horizontal section along the plane III of an operating member and an actuating member according to an embodiment in accordance with FIGS. Figures 1a to 1d and 2 ,
• the figure 4 is a schematic representation in perspective of an actuating member according to an embodiment in accordance with figures 1a at Id, 2 and 3,
• the figure 5 is a schematic representation in longitudinal section of an operating member according to an embodiment in accordance with figures 1a at Id, 2 and 3,
• the figure 6 is a schematic representation in vertical section along the plane VI of an operating member according to an embodiment in accordance with FIGS. figures 1a at Id, 2, 3 and 5,
• the figure 7 is a schematic representation in section through a plane orthogonal to the axis of actuation of a second embodiment of an assembly between an operating member and an actuating member according to the invention,
• the figure 8 is a schematic representation in section through a plane orthogonal to the axis of actuation of a third embodiment of an assembly between an operating member and an actuating member according to the invention.

A device according to the invention is adapted to be mounted in a light made in a jamb of a sliding leaf. In particular, the facing 3 according to the invention has walls 4 adapted to be housed in said opening of the opening. The facing 3 also has a finishing collar 5 for covering the edges of said light and thus improve the aesthetics of the opening in the assembled state with a device according to the invention.

Advantageously, the facing is mounted such that its length is mounted in the main direction of an amount orthogonal to the axis of sliding of the opening.

A device according to the invention also comprises a locking mechanism (not shown) of the cremone type, whose transmission means have a square orifice for receiving the controls of the operating member. This is why a parallelepipedal piece, called square 6, is mounted on the actuating member 2. This square 6 has in particular a casing housing 19 adapted to be able to receive tabs 8 of casing of the body member. Actuation 2. In particular lugs 9 of casing made on the tabs 8 of casing are cooperating with the casing housing 19 to be able to form an assembly by interlocking.

In addition, flats 20 formed on the tabs 8 of casing abut on inner faces (not visible) of the square 6, so that the latter is integral with the actuating member 2 in rotation around the actuating axis 21.

The interlocking formed between the actuating member - by its tabs 8 casing, in particular thanks to the lugs 9 of casing - and the square 6 also allows to prohibit a translational movement of a part relative to the other according to the axis of actuation.

A return spring 7 is mounted between the inner face of the facing 3 and the square 6. The square 6 transmits the force applied by the return spring 7 to the actuating member 2, so that the head 14 of the actuating member 2 is biased towards the bottom of the access housing 22.

The access housing 22 of the facing makes it possible to retract the operating member 1 in a closed position, as shown in FIG. figure 1a and in an open position, as shown in FIG. figure 1d .

The Figures 1a to 1d represent the different positions of the operating member 1 and the actuating member 2 (integral with the square 6 in rotation around the axis 21 of actuation) during a displacement of the operating member of a closed position at an open position.

Thus, at first ( Figures 1a and 1b ) the operating member 1 partially leaves the access housing 22 of the facing 3 by a rotation about an axis substantially parallel to the sliding axis of the opening (orthogonal to the actuating axis 21).

Then, it is turned around the actuating axis 21 towards the position shown in FIG. figure 1b . On a first quarter turn according to the actuating axis 21, the actuating member (and therefore the square 6) does not rotate about the actuating axis 21: the device has a set of angle of 90 degrees.

To the figure 1c on the other hand, the operating member has exceeded a quarter of a turn from its closed position, and the actuating member 2 has begun to rotate about the actuating axis 21 in the same direction as the actuating device 1.

In Figure Id, the operating member has been rotated 180 degrees along the axis of actuation 21 relative to its closed position (Figure la), so that it is in an open position, opposite at the closed position. The operating member is retracted into an open position by rotation about the same axis parallel to the sliding axis of the opening. The actuating member, for its part, turned 90 degrees at the same time between the Figure 1a and 1d .

The locking of the opening is in the opposite direction, by the passage of the actuating member from an open position of the figure 1d at a closed position of the figure 1a . This time again, the actuating member 2 remains stationary in the first quarter turn, then is moved as soon as the operating member has traveled a quarter turn, to reach its position of the figure 1a when the operating member returns to the closed position.

The invention therefore makes it possible to propose an easily retractable operating member in the opening, which is easily maneuverable because it has the shape of a handle of considerable length (notably greater than its width). To do this, the invention proposes a 180-degree rotational operating element between a closed position and an open position, adapted to operate with any type of cremone mechanism because the actuating member turns for its part only 90 degrees. The invention therefore proposes a transmission between the actuating member and the actuating member with 90 degrees angular play.

To do this, the operating member has an oblong handle shape, having at one of its longitudinal ends an internal cavity 12 for housing the head 14 of the actuating member 2. This longitudinal end 18 of the maneuvering member has a substantially rounded outer surface to be able to form a ball joint with the facing 3. The facing has, in particular, at the bottom of the access housing 22, a rounded housing adapted to accommodate the rounded longitudinal end 18 of the operating member. This link ball joint between the operating member and the facing allows a rotation of the operating member about an axis parallel to the sliding axis to enter and exit the closing and opening positions, as well as around of the actuating pin 21 to actuate the locking / unlocking mechanism. The facing also guides the longitudinal end 18 of the rotational actuator along the axis of actuation 21.

The cavity 12 of the operating member is open on the side intended for gripping the actuating member, to ensure a mounting of the head 14 of the actuating member in the cavity.

The head 14 of the actuating member 2 has a diameter greater than the mean diameter of the actuating member, so that it forms a shoulder 15 adapted to be able to abut on the facing 3 and / or on a flange 13 of the cavity 12 of the operating member, said flange being projecting support faces 11 of the cavity 12.

The actuating member passes through the facing 3 by an orifice of dimensions advantageously smaller than the width of the head 14. This orifice of the facing also ensures a guide of the actuating member in rotation along the axis of actuation.

The cavity 12 of the actuating member has two parallel bearing faces 11 opposite one another. These bearing lugs 11 serve to abut flats formed on the head 14 of the actuating member.

The head 14 has four flats 10 substantially orthogonal to each other, and joined to each other alternately by a rounded 16 and an edge 17. Such a head can be obtained by rounding two opposite edges of a square section.

Advantageously, the radial distance between each flare 16 and the actuating axis 21 is less than the minimum distance between each flange 11 and the actuating axis 21. Thus, the bearing flanges 11 abut on two of the four flats 10 as shown in FIG. figure 3 when the actuating member rotates 90 degrees counterclockwise relative to the actuating member, the bearing faces pass rounding without causing the actuating member 2 to rotate. The assembly allows an angular clearance of 90 degrees.

On the other hand, the radial distance between each edge 17 and the actuating axis 21 is greater than the minimum distance between each support section 11 and the actuating axis 21. Thus, after having turned 90 degrees counterclockwise , the bearing lugs 11 of the cavity 12 abut on the two other flats 10 of the head 14 and the operating member 1 transmits to the actuating member 2 any rotation in the counterclockwise direction beyond this angle.

The bearing lugs 11 bear on a first group of flats, called flat flats, containing half of the flats, in a first direction of actuation, then on a second group of flats, said flats anticlockwise, containing the other half of the flats, peripherally alternated with the hour flats, in a second direction of actuation inverse to the first direction of actuation.

Furthermore, the actuating member being biased in the bottom of the access housing 22 of the facing 3 by the return spring 7, and the shoulder 15 of the actuating member being abutted on the collar 13 of the the operating member, the operating member is also biased towards the bottom of the access housing 22. Thus the operating member may have a shape adapted to slide on the finishing flange 5 of the facing when recalled in position by the return spring 7 so as to automatically return to a opening position or a closed position, in particular the closest to an intermediate position in which it would have been abandoned.

Advantageously, the access housing 22 of the facing being adapted to retract the operating member in a closed position and in an open position opposite to the closed position, when the operating member is in a position of opening the access housing 22 provides a recess in which a user can slide the tips of his fingers in order to exert a thrust or pull force to be able to close or open the opening in its sliding direction.

In addition, the operating member being retracted in the open position, the opening can be slid behind an adjacent panel mounted parallel on the same frame.

Also, the operating member advantageously has a length of about 8 cm and a width of about 1.5 cm and the access housing has a length of about 18 cm and a width of about 1.7 cm. . Thus, when the operating member is in the open position, the user has a space at least 9 cm long and 1.7 cm wide to slide the tips of his fingers to pull / push the slidingly opening.

Advantageously and according to the invention other angular sets can be obtained by the combination of a cavity and a head based on the same principle.

So at the figure 7 , the cavity 12 of the actuator 1 has three bearing faces 11, and the head 14 of the actuating member has six flats 10 joined alternately by a rounded 16 and a ridge 17. The distance of each round the axis of actuation 21 is less than the distance from each support section 11 to the actuating axis 21, which is itself smaller than the distance between each edge 17 and the actuating axis. Such an arrangement makes it possible to obtain an angular clearance of 60 degrees.

To the figure 8 , the cavity 12 of the actuating member 1 has five bearing faces 11, and the head 14 of the actuating member has ten flats 10 joined alternately by a flare 16 and a ridge 17. The distance each rounded to the axis of actuation 21 is less than the distance from each support section 11 to the axis of actuation 21, which is itself smaller than the distance between each edge 17 and the axis of actuation. Such an arrangement makes it possible to obtain an angular clearance of 36 degrees.

The invention can be the subject of many other embodiments not shown.

Nothing prevents, for example, that the operating member passes through the facing instead of the actuating member.

Alternatively, nothing prevents the operating member from having a head adapted to be housed in a cavity of the actuating member.

In addition, many other complementary shapes of the cavity and the head can be envisaged. Thus, for example the head may have thin walls arranged in star forming flats, and the cavity an alternation of solid sectors and empty sectors. Solid sectors abut on the walls of the head. The solid sectors have an angular amplitude smaller than the angular amplitude between two star walls of the head. For example the head may have two opposite walls, and the cavity two sectors full of 90 degrees to obtain a 90 degree angular clearance.

In particular, in variation of the embodiments presented, nothing prevents to achieve a head having an odd number of flats - for example having n flats or 2n-1 flats - to be mounted cooperating with a cavity with n flats . So, in the example presented to Figures 3 and 4 , one of the two edges can be rounded, so that only two flats of the head are alternately supported on one of the two support sections according to whether one carries out an unlocking movement or a locking movement of the actuator. The embodiments presented are, however, particularly advantageous because they provide a maximum transmission area between actuator and actuator.

In addition, any type of locking / unlocking mechanism requiring a rotary movement to be actuated is compatible with a device according to the invention.

Claims (12)

Locking / unlocking device for a sliding leaf comprising: an actuating member (1), - A locking / unlocking mechanism adapted to be inserted into the opening behind a front wall of the door, and comprising: At least one bolt, and • means of transmission: Adapted to, under the effect of a displacement of the operating member, move each bolt between a locked position and an unlocked position, ■ comprising at least one actuating member (2) rotatable about an axis, said operating axis (21), orthogonal to the front wall of the opening, said actuating member (2) being rotated around said actuating axis (21) by the operating member (1), said actuating member (1) being movable about the actuating axis (21) between a corresponding position, the corresponding open position. an unlocked position of each bolt, and a position, called the closed position, corresponding to a locked position of each bolt, - An outer facing (3) adapted to be embedded in a mounting slot in the front wall of the opening, characterized in that - said opening position of the operating member (1) is opposite the axis of actuation (21) to said closed position, - The facing (3) has an access housing (22) adapted to retract the operating member (1) in the front wall in the open position and in the closed position, the actuating member (1) and the actuating member (2) are mechanically coupled so that the angle of rotation of the actuating member about the actuating axis (21) by a movement of the operating member between a closed position and an open position is strictly less than the angle of rotation of the operating member about the axis of actuation by said displacement of the actuating member between a closed position and an open position. Device according to claim 1, characterized in that the opening and closing positions of the operating member are 180 degrees from one another about the actuating axis. Device according to one of claims 1 or 2, characterized in that the operating member (1) and the transmission means are adapted so that the actuating member (2) is driven with an angular amplitude less than 180 degrees around the axis of actuation (21) by a displacement of the actuating member between a closed position and an open position. Device according to one of claims 1 to 3, characterized in that , the actuating member (1) being of elongated shape, the access housing (22) of the facing is oblong to retract the operating member in the open position and in the closed position. Device according to one of claims 1 to 4, characterized in that : the actuating member (2) has a head (14) on one outside of the facing (3), the operating member (1) has a cavity (12) adapted to be able to: • accommodate the head of the actuator, • transmit a rotation of the operating member around the actuating axis (21) to the actuating member. Device according to claim 5, characterized in that the head (14) of the actuating member (2) has a radius which varies along its contour around the actuating axis (21). Device according to one of claims 5 or 6, characterized in that : - the cavity (12) of the actuating member (1) has sections, said support sections (11), the head (14) of the actuating member (2) presents • flats (10) peripheral with respect to the actuating axis (21), adapted to abut on support panels (11), • a maximum radius greater than the distance of at least one flat (10) relative to the actuating axis (21). Device according to claim 7, characterized in that : the head (14) of the actuating member has 2n peripheral flats (10), n being an integer greater than or equal to 2, - The cavity (12) of the actuating member (1) has n support faces adapted for, by a rotation of the actuating member about the actuating axis (21), bear with: a first group of n flats in a direction of rotation along the axis of actuation, a second group of n flats, alternated with the flats of the first group, in a second direction of rotation along the axis of actuation. Device according to one of claims 7 or 8, characterized in that said flats (10) are joined to each other alternately by a member selected from a ridge (17) and a rounded (16). Device according to one of Claims 7 to 9, characterized in that : the cavity (12) has two substantially parallel support faces (11), - The head (14) has four flats (10) uniformly distributed peripherally. Device according to one of claims 1 to 10, characterized in that it further comprises a spring (7) for returning the actuating member (2) towards the inside of the opening according to the axis of actuation (21). Device according to one of claims 1 to 11, characterized in that the operating member (1) is also mounted at least partially rotatable about an axis orthogonal to the actuating axis (21).

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