EP3165698A1 - Locking device for a semi-stationary shutter - Google Patents

Abstract

Locking device for a semi-fixed leaf (2) cooperating with a movable leaf (1) for closing an opening, characterized in that it comprises: a locking element (10 ') comprising a first retaining member (14') ) adapted to cooperate with a second retaining member (50 ') integral with the periphery of the opening in the vicinity of a meeting point of the two leaves, and a control member (16'), the first retaining member (14 ') ') and the control member (16') being able to be mounted movably on the semi-fixed leaf (2) so that, when the semi-fixed leaf (2) is in its closed position, the first retaining member (14 ') and the control member (16') can move substantially parallel to the plane of the perimeter of the opening between a locking configuration in which a cooperation of the first retaining member (14 ') with the second retaining member (50, 50 ') is adapted to be made to lock the vault the semi-fixed (2) and a release configuration in which said cooperation can be released; means for biasing the locking member (10 ') towards its release configuration; and a cam (60 ') intended to be integral with the movable leaf (1) to cooperate with the control member (16') so as to bias the locking element (10 ') towards its locking configuration, when the semi-fixed leaf (2) is in its closed position.

Description

The present invention relates to the field of doors, windows, French windows or other types of leaves intended to close an opening.

It relates more specifically to a locking device for a semi-fixed leaf cooperating with a movable leaf to close an opening.

By mobile leaf is meant that of the two leaves which is normally open first when both leaves are both initially in the closed position. The movable leaf thus usually comprises gripping means intended to allow its opening, and a locking mechanism of the mobile leaf on the semi-fixed leaf and / or on the periphery of the opening. It is therefore meant to designate by semi-fixed leaf, the leaf that is normally opened once the open mobile leaf.

Locking devices are already known for a semi-fixed leaf that cooperates with a mobile leaf to close an opening. These known devices comprise a locking element that can be unlocked once the mobile leaf is open. This unlocking is for example operated using a zipper or a small lever.

Thus, according to the known devices, it is necessary to unlock the semi-fixed leaf, when the latter is in the closed position after the opening of the mobile leaf, manually perform an unlocking operation. Similarly, it is necessary to lock the semi-fixed leaf, manually perform the reverse operation before closing the mobile leaf.

These known devices therefore have the disadvantage of actively involving the user in unlocking or locking the semi-fixed leaf, which is binding, especially for a physically impaired user.

Another disadvantage of these known devices is that to be able to be hidden when the two leaves are closed, the locking element and the means which make it possible to unlock it are either very small, in which case their handling is difficult, or more easily manipulated, in which case their size is greater, which affects the overall aesthetics of the frame equipped with these leaves.

The present invention proposes to remedy these disadvantages substantially.

More particularly, a locking device for a semi-fixed leaf cooperating with a movable leaf to close an opening according to the present invention is characterized in that it comprises a locking element comprising a first retaining member adapted to cooperate with a second retaining member secured to one of the objects of the semi-fixed leaf and the periphery of the opening in the vicinity of a meeting place of the two leaves, and a control member, the first retaining member and the body of the control being able to be mounted mobile on the other of said objects so that, when the semi-fixed leaf is in its closed position, the first retaining member and the control member can move substantially parallel to the plane around the opening between a locking configuration in which the first retaining member is adapted to cooperate with the second retaining member to lock the sash semi-fixed garlic and a release configuration in which the second retaining member can be released; means for biasing the locking member toward its release configuration; and a cam intended to be secured to the movable leaf to cooperate with the control member so as to bias the locking element towards its locking configuration, when the semi-fixed leaf is in its closed position.

Thanks to the present invention, a locking or unlocking operation of the semi-fixed leaf is performed not manually by the user but, on the contrary, automatically by closing or opening the mobile leaf, which allows the user to overcome the binding operations required by the known devices described above.

More precisely, thanks to the present invention, a simple opening of the movable leaf is enough to unlock the semi-fixed leaf. Indeed, the opening of the mobile leaf causes a break in the cooperation between the cam and the control member, which allows the first retaining member and the control member to come into release configuration under the constraint of means for biasing the locking element. Conversely, a simple closing of the mobile leaf is enough to lock the semi-fixed leaf. Indeed, the closure of the movable leaf causes a cooperation between the cam and the control member, which makes it possible to overcome the bias exerted by the biasing means on the locking element and to constrain the first restraint member as well as the controller to move to the lock configuration.

Moreover, thanks to the present invention, the first retaining member and the control member are able to be mounted movably, either around the periphery of the opening or the semi-fixed leaf, so as to be able to move substantially parallel to the plane of the periphery, when the semi-fixed leaf is in its closed position. Thus, thanks to the present invention, a locking element and the cam which cooperates with it can be made in an extremely discrete and space-saving form, which allows to preserve the general aesthetic of the frame.

Advantageously, according to a first particular variant, the second retaining member is secured to the semi-fixed leaf, while the first retaining member and the control member are able to be mounted movably on the periphery of the opening in the vicinity of a meeting place of the two leaves.

• un élément de verrouillage comportant un premier organe de retenue apte à coopérer avec un deuxième organe de retenue solidaire du vantail semi-fixe, et un organe de commande, le premier organe de retenue et l'organe de commande étant aptes à être montés mobiles sur le pourtour de l'ouverture au voisinage d'un lieu de rencontre des deux vantaux de manière à pouvoir se déplacer sensiblement parallèlement au plan du pourtour de l'ouverture entre une configuration de verrouillage dans laquelle le premier organe de retenue est apte à coopérer avec le deuxième organe de retenue pour verrouiller le vantail semi-fixe et une configuration de libération dans laquelle le deuxième organe de retenue peut être libéré ;
• des moyens pour solliciter l'élément de verrouillage vers sa configuration de libération ; et
• une came destinée à être solidaire du vantail mobile pour coopérer avec l'organe de commande de manière à solliciter l'élément de verrouillage vers sa configuration de verrouillage.

It will be understood that, according to this first variant, a locking device is obtained for a semi-fixed leaf cooperating with a movable leaf to close an opening, the mobile and semi-fixed leaves extending substantially in a plane of the periphery of the door. when they are both in the closed position, said device comprising:

• a locking element comprising a first retaining member adapted to cooperate with a second retaining member integral with the semi-fixed leaf, and a control member, the first retaining member and the control member being able to be mounted movably on the periphery of the opening in the vicinity of a meeting point of the two leaves so as to be able to move substantially parallel to the plane of the periphery of the opening between a locking configuration in which the first retaining member is able to cooperate with the second retaining member for locking the semi-fixed leaf and a release configuration in which the second retaining member can be released;
• means for biasing the locking member toward its release configuration; and
• a cam intended to be secured to the movable leaf to cooperate with the control member so as to bias the locking member towards its locking configuration.

Advantageously, according to a second particular variant which represents an alternative to the first variant mentioned above, the second retaining member is integral with the periphery of the opening in the vicinity of a meeting place of the two. leaves, while the first retaining member and the control member are adapted to be mounted movably on the semi-fixed leaf.

• un élément de verrouillage comportant un premier organe de retenue apte à coopérer avec un deuxième organe de retenue solidaire du pourtour de l'ouverture au voisinage d'un lieu de rencontre des deux vantaux, et un organe de commande, le premier organe de retenue et l'organe de commande étant aptes à être montés mobiles sur le vantail semi-fixe de manière à ce que, lorsque le vantail semi-fixe est dans sa position de fermeture, le premier organe de retenue et l'organe de commande puissent se déplacer sensiblement parallèlement au plan du pourtour de l'ouverture entre une configuration de verrouillage dans laquelle le premier organe de retenue est apte à coopérer avec le deuxième organe de retenue pour verrouiller le vantail semi-fixe et une configuration de libération dans laquelle le deuxième organe de retenue peut être libéré ;
• des moyens pour solliciter l'élément de verrouillage vers sa configuration de libération ; et

It will be understood that, according to this second variant, a locking device is obtained for a semi-fixed leaf cooperating with a movable leaf to close an opening, the mobile and semi-fixed leaves extending substantially in a plane of the periphery of the door. when they are both in the closed position, said device comprising:

• a locking element comprising a first retaining member adapted to cooperate with a second retaining member integral with the periphery of the opening in the vicinity of a meeting point of the two leaves, and a control member, the first retaining member and the control member being adapted to be movably mounted on the semi-fixed leaf so that, when the semi-fixed leaf is in its closed position, the first retaining member and the control member can move substantially parallel to the plane of the perimeter of the opening between a locking configuration in which the first retaining member is adapted to cooperate with the second retaining member to lock the semi-fixed leaf and a release configuration in which the second member of restraint can be released;
• means for biasing the locking member toward its release configuration; and

a cam intended to be secured to the movable leaf to cooperate with the control member so as to bias the locking element towards its locking configuration, when the semi-fixed leaf is in its closed position.

Advantageously, according to a particular arrangement of this second variant, the first retaining member and / or the control member are adapted to be movably mounted rabbet of the semi-fixed leaf. Advantageously, the first retaining member and the control member are integral in displacement, which simplifies the kinematics of the device.

Preferably, the first retaining member and the control member are formed in one piece, which allows a simplification of the device and a reduction in its manufacturing cost.

According to an advantageous alternative, the first retaining member and the control member are not integral in displacement, but are both able to move by describing distinct paths or the like.

Advantageously, the first retaining member and the control member are mounted on a guide piece in common displacement, able to be mounted either on the periphery of the opening, when implementing the first variant, or on the semi-fixed leaf, when implementing the second variant. It is understood that the first retaining member and the control member can thus be easily put in place, since it is sufficient to mount these two members on the moving guide piece, and then mount this piece or on the periphery of the opening is on the semi-fixed leaf. This results in a saving of time during assembly. In addition, the subassembly constituted by the first retaining member, the control member and the moving guide piece can thus be standardized so that it can be indifferently mounted on any type of opening periphery. intended to be closed by two leaves either on any type of semi-fixed leaf.

This guide piece in common displacement can advantageously be a platen when implementing the first variant.

Advantageously, the cam is a separate piece of the mobile leaf and is adapted to be secured to the latter, which allows to provide the cam in the form of a standard element that can be indifferently mounted on any type of mobile leaf.

Advantageously, the control member has a ramp capable of cooperating with the cam.

It is understood that the realization or rupture of the cooperation between the control member and the cam, when a movement of the mobile leaf is initiated respectively to close or open, can thus be performed more gradually, which allows to improve the wear resistance of the device and the user to feel less the transitions of configurations of the device when closing or opening the mobile leaf.

Advantageously, one of said first and second retaining members comprises a male part adapted to be engaged in a female part formed on the other retaining member, which improves the performance of the locking of the semi-fixed leaf when the element lock is in the lock configuration. In In particular, the cooperation of the first and second retaining members can thus better withstand forced opening of the semi-fixed leaf. In addition, the functional clearance required to allow the realization or rupture of the cooperation of the first and second retaining members can thus be minimized, so that the residual mobility of the semi-fixed leaf when it is locked in the closed position can be minimized.

Advantageously, the device further comprises means for forming a hard point for holding the second retaining member in the release configuration of the first retaining member.

It is understood that the semi-fixed leaf, when the mobile leaf is open so that the first retaining member is in the release configuration, can still be maintained in the closed position thanks to the presence of the means intended to forming a hard point for holding the second retaining member, which makes it possible to prevent unintentional opening of the semi-fixed leaf, in particular under the effect of the wind or its own weight when it is not plumbed. .

Preferably, the device comprises a retaining relief capable of being secured either around the periphery of the opening, when the first variant is implemented, or of the semi-fixed leaf, when the second variant is implemented, and the second retaining member is resiliently movable to catch on the retaining relief and to release it when the locking member is in its release configuration.

It is understood that the second retaining member can thus, when the locking element is in its release configuration, be hooked on the retaining relief or be released by a simple pressure exerted by the user on the semi-fixed leaf , which is practical and not very binding for the user.

Advantageously, the first retaining member comprises a locking relief which, in the locking configuration, is more pronounced than the retaining relief in the release configuration.

It will be understood that, in the locking configuration, the locking relief is more salient than the retaining relief so that the first retaining member can cooperate with the second retaining member to lock the semi-fixed leaf in the locking position. closing. As a result, in the locking configuration, the semi-fixed leaf can not be released even when the user requests its opening by exerting pressure on it.

Advantageously, the retaining relief is formed by the locking relief when the first retaining member is in the release configuration.

It is understood that the first retaining member, in addition to ensuring the locking of the second retaining member when it is in the locking configuration, can thus also ensure the maintenance of the second retaining member when it is in the release configuration, which allows a simplification of the device.

According to an advantageous alternative, the retaining relief is fixedly mounted relative to either the periphery of the opening, when the first variant is implemented, or the semi-fixed leaf, when the second variant is implemented.

Preferably, the first retaining member and the control member are mounted on the common board previously mentioned, and the retaining relief is formed on this board, which simplifies the device and allows more easily to provide it in the form of standard elements.

Advantageously, the first retaining member and the control member are adapted to be pivotally mounted either on the periphery of the opening, when the first variant is implemented, or on the semi-fixed leaf, when the second variant is implementation, which simplifies the device by implementing simple movements.

According to an advantageous alternative, the first retaining member and the control member are able to be slidably mounted either around the periphery of the opening, when the first variant is implemented, or on the semi-fixed leaf, when the second variant is implemented, which simplifies the device by implementing simple movements.

• la figure 1 représente une vue en perspective montrant un vantail semi-fixe apte à coopérer avec un vantail mobile pour fermer une ouverture, et deux éléments de verrouillage de dispositifs de verrouillage conformes à la présente invention qui sont montés sur le pourtour de l'ouverture ;
• la figure 2 montre une vue en perspective représentant un élément de verrouillage du dispositif de verrouillage illustré à la figure 1 selon un premier mode de réalisation quand ledit élément se trouve dans une configuration de libération ;
• la figure 3 montre une vue en perspective illustrant l'élément de verrouillage représenté à la figure 2 quand ledit élément se trouve dans une configuration de verrouillage ;
• la figure 4 représente une vue en perspective éclatée montrant l'élément de verrouillage illustré aux figures 2 et 3 lorsqu'il est monté coulissant sur une platine apte à être montée sur le pourtour de l'ouverture ;
• la figure 5 montre une vue en perspective représentant un deuxième organe de retenue apte à être maintenu sur un relief de retenue du dispositif de verrouillage illustré à la figure 1 quand l'élément de verrouillage est dans sa configuration de libération ;
• la figure 6 est une vue en perspective éclatée montrant le deuxième organe de retenue illustré à la figure 5 et son montage sur le vantail semi-fixe ;
• la figure 7 est une vue en coupe de la figure 5, illustrant l'accrochage du deuxième organe de retenue sur le relief de retenue quand l'élément de verrouillage est dans sa configuration de libération ;
• la figure 8 est une vue en coupe analogue à celle illustrée à la figure 7, représentant une libération du deuxième organe de retenue du relief de retenue quand l'élément de verrouillage est dans sa configuration de libération ;
• la figure 9 est une vue en coupe analogue à celle représentée à la figure 7, illustrant une coopération du premier organe de retenue avec le deuxième organe de retenue quand l'élément de verrouillage est dans sa configuration de verrouillage ;
• la figure 10 est une vue en coupe illustrant une came conforme au premier mode de réalisation de la présente invention destinée à être solidaire du vantail mobile, ainsi que l'élément de verrouillage illustré à la figure 1 dans sa configuration de libération avant que son organe de commande ne coopère avec ladite came ;
• la figure 11 est une vue en coupe analogue à celle montrée à la figure 10, représentant l'élément de verrouillage passant de sa configuration de libération à sa configuration de verrouillage du fait de la coopération de son organe de commande avec la came ;
• la figure 12 est une vue en perspective analogue à celle illustrée à la figure 5, représentant la coopération entre les premier et deuxième organes de retenue quand l'élément de verrouillage est dans sa configuration de verrouillage ;
• la figure 13 est une vue en perspective représentant un élément de verrouillage du dispositif de verrouillage illustré à la figure 1 selon un deuxième mode de réalisation quand ledit élément se trouve dans une configuration de libération ;
• la figure 14 montre une vue en perspective illustrant l'élément de verrouillage représenté à la figure 13 quand ledit élément se trouve dans une configuration de verrouillage ;
• la figure 15 représente une vue en perspective éclatée montrant l'élément de verrouillage illustré aux figures 13 et 14 lorsqu'il est monté pivotant sur une platine apte à être montée sur le pourtour de l'ouverture ;
• la figure 16 montre une vue en perspective représentant un deuxième organe de retenue apte à être maintenu sur un relief de retenue du dispositif de verrouillage selon le deuxième mode de réalisation quand l'élément de verrouillage est dans sa configuration de libération ;
• la figure 17 représente une vue en coupe de dessus représentant une came conforme au deuxième mode de réalisation de la présente invention destinée à être solidaire du vantail mobile, ainsi que l'élément de verrouillage illustré à la figure 13 dans sa configuration de libération avant que son organe de commande ne coopère avec ladite came ;
• la figure 18 représente une vue en coupe selon un plan vertical de la vue illustrée à la figure 17 ;
• la figure 19 est une vue en perspective analogue à celle illustrée à la figure 16, représentant la coopération entre les premier et deuxième organes de retenue quand l'élément de verrouillage est dans sa configuration de verrouillage ;
• la figure 20 est une vue en coupe selon un plan vertical de la vue représentée à la figure 19 ;
• la figure 21 est une vue en coupe selon un plan vertical, perpendiculaire au plan de coupe de la vue de la figure 20, de la vue illustrée à la figure 20 ;
• la figure 22 montre une vue en perspective représentant un élément de verrouillage d'un dispositif de verrouillage selon un troisième mode de réalisation de la présente invention, lorsque cet élément de verrouillage se trouve dans une configuration de libération ;
• la figure 23 est une vue en coupe de la figure 22 dans un plan vertical transverse au vantail semi-fixe 2, illustrant l'accrochage du deuxième organe de retenue sur le relief de retenue quand l'élément de verrouillage est dans sa configuration de libération ;
• la figure 24 est une vue en coupe analogue à la figure 22, représentant une libération du deuxième organe de retenue du relief de retenue quand l'élément de verrouillage est dans sa configuration de libération ;
• la figure 25 est une vue en perspective dans laquelle on n'a pas représenté le vantail semi-fixe alors que ce dernier est dans sa configuration de libération, et dans laquelle on a représenté le vantail mobile entre-ouvert ;
• la figure 26 est une vue en coupe dans un plan horizontal transverse au vantail semi-fixe, illustrant une came conforme au troisième mode de réalisation de la présente invention destinée à être solidaire du vantail mobile, ainsi que l'élément de verrouillage dans sa configuration de libération avant que son organe de commande ne coopère avec cette came ;
• la figure 27 est une vue en coupe analogue à la figure 26, représentant l'élément de verrouillage passant de sa configuration de libération à sa configuration de verrouillage du fait de la coopération de son organe de commande avec la came ;
• la figure 28 montre une vue en coupe analogue à la figure 22, représentant une coopération du premier organe de retenue avec le deuxième organe de retenue quand l'élément de verrouillage est dans sa configuration de verrouillage ;
• la figure 29 est une vue en perspective dans laquelle les deux vantaux sont en position de fermeture mais seul le vantail mobile est représenté, mettant en évidence l'élément de verrouillage dans sa configuration de verrouillage ;
• la figure 30 est une analogue à la figure 29, dans laquelle on a cette fois représenté les deux vantaux ;
• la figure 31 montre une vue en perspective éclatée montrant les éléments constitutifs de l'élément de verrouillage, du deuxième organe de retenue et de la came selon le troisième mode de réalisation.

The invention will be better understood and its advantages will appear better on reading the following detailed description of embodiments given by way of non-limiting examples. The description refers to the accompanying drawings in which:

• the figure 1 is a perspective view showing a semi-fixed leaf adapted to cooperate with a movable leaf to close an opening, and two locking device locking elements according to the present invention which are mounted on the periphery of the opening;
• the figure 2 shows a perspective view showing a locking element of the locking device illustrated in FIG. figure 1 according to a first embodiment when said element is in a release configuration;
• the figure 3 shows a perspective view illustrating the locking element shown in FIG. figure 2 when said element is in a lock configuration;
• the figure 4 is an exploded perspective view showing the locking element illustrated in FIGS. figures 2 and 3 when slidably mounted on a plate adapted to be mounted on the periphery of the opening;
• the figure 5 shows a perspective view showing a second retaining member adapted to be held on a retaining relief of the locking device illustrated in FIG. figure 1 when the locking element is in its release configuration;
• the figure 6 is an exploded perspective view showing the second retainer shown in FIG. figure 5 and its mounting on the semi-fixed leaf;
• the figure 7 is a sectional view of the figure 5 illustrating the attachment of the second retaining member to the retaining relief when the locking member is in its release configuration;
• the figure 8 is a sectional view similar to that illustrated in figure 7 , representing a release of the second retaining relief retaining member when the locking member is in its release configuration;
• the figure 9 is a sectional view similar to that shown in figure 7 illustrating a cooperation of the first retaining member with the second retaining member when the locking member is in its locking configuration;
• the figure 10 is a sectional view illustrating a cam according to the first embodiment of the present invention intended to be integral with the mobile leaf, and the locking element illustrated in FIG. figure 1 in its release configuration before its control member cooperates with said cam;
• the figure 11 is a sectional view similar to that shown in figure 10 , representing the locking element passing from its release configuration to its locking configuration due to the cooperation of its control member with the cam;
• the figure 12 is a perspective view similar to that illustrated in figure 5 , representing the cooperation between the first and second retaining members when the locking element is in its locking configuration;
• the figure 13 is a perspective view showing a locking element of the locking device illustrated in FIG. figure 1 according to a second embodiment when said element is in a release configuration;
• the figure 14 shows a perspective view illustrating the locking element shown in FIG. figure 13 when said element is in a lock configuration;
• the figure 15 is an exploded perspective view showing the locking element illustrated in FIGS. figures 13 and 14 when it is pivotally mounted on a plate adapted to be mounted on the periphery of the opening;
• the figure 16 shows a perspective view showing a second retaining member adapted to be held on a retaining relief of the locking device according to the second embodiment when the locking member is in its release configuration;
• the figure 17 is a sectional view from above showing a cam according to the second embodiment of the present invention intended to be secured to the movable leaf, and the locking element illustrated in FIG. figure 13 in its release configuration before its control member cooperates with said cam;
• the figure 18 represents a sectional view along a vertical plane of the view illustrated in FIG. figure 17 ;
• the figure 19 is a perspective view similar to that illustrated in figure 16 , representing the cooperation between the first and second retaining members when the locking element is in its locking configuration;
• the figure 20 is a sectional view along a vertical plane of the view shown in figure 19 ;
• the figure 21 is a sectional view along a vertical plane, perpendicular to the section plane of the view of the figure 20 , from the illustrated view to the figure 20 ;
• the figure 22 shows a perspective view showing a locking element of a locking device according to a third embodiment of the present invention, when this locking member is in a release configuration;
• the figure 23 is a sectional view of the figure 22 in a transverse vertical plane to the semi-fixed leaf 2, illustrating the attachment of the second retaining member on the retaining relief when the locking element is in its release configuration;
• the figure 24 is a sectional view similar to the figure 22 , representing a release of the second retaining relief retaining member when the locking member is in its release configuration;
• the figure 25 is a perspective view in which the semi-fixed leaf has not been shown while the latter is in its release configuration, and in which the movable leaf is shown between-open;
• the figure 26 is a sectional view in a horizontal plane transverse to the semi-fixed leaf, illustrating a cam according to the third embodiment of the present invention intended to be secured to the movable leaf, as well as the locking element in its front release configuration that its control member does not cooperate with this cam;
• the figure 27 is a sectional view similar to the figure 26 , representing the locking element passing from its release configuration to its locking configuration due to the cooperation of its control member with the cam;
• the figure 28 shows a sectional view similar to the figure 22 , representing a cooperation of the first retaining member with the second retaining member when the locking member is in its locking configuration;
• the figure 29 is a perspective view in which the two leaves are in the closed position but only the movable leaf is shown, highlighting the locking element in its locking configuration;
• the figure 30 is an analog to the figure 29 in which this time the two leaves are represented;
• the figure 31 shows an exploded perspective view showing the constituent elements of the locking element, the second retaining member and the cam according to the third embodiment.

To the figure 1 , there is shown a semi-fixed leaf 2 and movable leaf 1 both mounted movable in a frame 3 so as to cooperate together to close an opening.

According to the illustrated example, the two leaves 1 and 2 have substantially identical dimensions.

The frame 3 consists essentially of two uprights 6 and 7 on which are mounted the two leaves 1 and 2, and two crosspieces 4 and 5 perpendicular to the uprights 6 and 7.

A locking element 10 of a locking device according to the first variant of the present invention is mounted substantially in the middle of the rabbet of at least one of the two crosspieces of the frame 3, for example the crossbar 5.

Thus, since the two leaves 1 and 2 of the illustrated example are mounted in a frame 3 to close an opening, on the one hand, and have substantially identical dimensions, on the other hand, the locking element 10 is found mounted on the periphery of the opening, in the vicinity of a meeting place of the two leaves 1 and 2.

In the same way, according to the illustrated example, another locking element 10 of another locking device according to the first variant of the present invention is mounted substantially in the middle of the rabbet of the other crossbar 4.

Thus, in the example illustrated, it is intended to use two locking devices according to the present invention, so that all that will now be described for a locking device is also valid for the other locking device .

To the figure 2 there is shown a locking element 10 of a locking device made according to a first embodiment according to the first variant of the present invention.

The locking element 10 comprises a first retaining member 14 adapted to cooperate with a second retaining member secured to the semi-fixed leaf 2 which will be described later.

The locking element 10 also comprises a control member 16 adapted to cooperate with a cam intended to be integral with the mobile leaf 1 which will be described later.

According to the illustrated example, the locking element 10 is substantially in the form of a bar, so that the first retaining member 14 and the control member 16 are formed in one piece.

The thickness of the bar 10 varies along its length, so that the bar 10 can be considered to consist essentially of three longitudinal sections 12, 14, 16 each having a mean thickness of its own.

The first section 12 is formed from a first longitudinal end of the bar 10 and has a lower average thickness.

The second section 14 is formed in the extension of the first section 12 and has an average thickness of greater value. The second section 14 constitutes in the illustrated example the first retaining member of the locking element 10.

The third section 16 is formed in the continuity of the second section 14, extends to the second longitudinal end of the bar 10, and has an average thickness of intermediate value. The third section 16 constitutes in the example illustrated the control member of the locking element 10.

According to the illustrated example, a ramp 17 is formed in the second longitudinal end of the bar 10. This ramp 17 is configured to cooperate with the cam which will be described later.

The bar 10 has an opening 18 which crosses its entire thickness and which is formed along a portion of the first section 12 and along the entire second section 14.

The second section 14 thus traversed by the opening 18 is in the form of two cheeks 14A and 14B which are substantially parallel to each other and which constitute the places of the bar 10 of greater thickness. The two cheeks 14A and 14B thus define a female part which is adapted to cooperate with the second retaining member which will be described later.

According to the illustrated example, the bar 10 is slidably mounted in its longitudinal direction on a plate 20, which, according to this embodiment, constitutes a displacement guide piece on which the first retaining member and the control member are both mounted.

To the figure 4 , the mounting of the bar 10 on the plate 20 is shown. The plate 20 has two longitudinal grooves 22, one of which is open longitudinally, each of which is capable of receiving a corresponding elongate lug 19 projecting under the bar 10 of FIG. so that the latter can slide in its longitudinal direction on the plate 20 when the bar 10 is mounted on the plate 20.

The bar 10 is held on the plate 20 by means of a holding piece 30 which is installed on the plate 20 by being introduced through the opening 18 of the bar 10 and which is fixed on the plate 20.

The retaining piece 30 comprises a base 33 which is fixed on the plate 20 by screwing and which has a notch 34 defining a retaining relief, here recessed substantially V-shaped enough open, able to cooperate with the second retaining member which will be more detailed after.

The holding piece 30 also has a junction wall 36 formed in one end of the base 33 and from which a projecting portion 32 projects. This protruding portion 32 serves to guide translation of the bar 10 by cooperation with the two cheeks 14A and 14B when the bar 10 is slid on the plate 20.

The plate 20 is fixed on the rabbet of a cross member 5 of the frame 3 by screwing, so that the bar 10 can slide in a direction substantially parallel to the plane of the periphery of the opening.

Thus, according to the illustrated example, the plate 20 is fixed on the periphery of the opening. Since the holding element 30 is fixed on the plate 20, the retaining relief which is defined by the notch 34 of the base 33 of the holding element is therefore fixedly mounted relative to the periphery of the opening .

In addition, since in the illustrated example the first retaining member and the control member are formed in one piece, these two elements are integral in displacement, so that they are integrally slid in a direction substantially parallel to the plane around the opening when the bar 10 slides.

By plane of the periphery of the opening, is meant the plane in which substantially extend the two leaves 1, 2 when they are both in the closed position. So, according to the example shown in the figure 1 , the plane of the perimeter of the opening also corresponds to the plane passing through the two crosspieces 4 and 5 of the frame 3, or else to the plane passing through the two uprights 6 and 7 of the frame 3.

Thus, the bar 10 on which are formed the first retaining member 14 and the control member 16 is able to move substantially parallel to the plane of the periphery of the opening between a first position illustrated in FIG. figure 2 , and a second position illustrated in the figure 3 .

The first position is obtained when the bar 10 is in a so-called release configuration of the second retaining member in which the first section 12 of the bar 10 is opposite the notch 34 of the retaining piece 30. average thickness of the first section 12, which is that of the bar 10 which is the lowest, is provided so that the edges of the notch 34 are substantially flush with the portion of the opening 18 formed in the first section 12 of the bar. Thus, the relief formed by the thickness of the first section 12 and the retaining relief formed by the notch 34 of the holding member 30 are not really more salient than the other.

The second position is obtained when the bar 10 is in a so-called locking configuration of the second retaining member in which the two cheeks 14A and 14B are opposite the notch 34 of the retaining piece 30. two cheeks 14A and 14B represent the parts of the bar 10 of greater thickness, the two cheeks 14A and 14B then protrude more than the notch 34. As a result, the locking relief thus defined by the two cheeks 14A and 14B is, in this locking configuration, more pronounced than the retaining relief defined by the notch 34 of the holding element 30, it being noted that according to the illustrated example, this retained relief is identical in the release configuration and in the lock configuration.

The locking device of the present invention also includes means for biasing the locking member toward its release configuration.

In the example shown in figure 4 these means are in the form of a primary spiral spring 40 which is housed in a recess formed in the lower part of the third section 16 of the bar 10 and which is adapted to cooperate on the one hand with an edge of this recess on the other hand with the junction wall 36 of the holding element 30.

The primary spiral spring 40 thus arranged is able to urge the strip 10 in sliding towards its first position illustrated in FIG. figure 2 and previously described, so to its release configuration.

As already briefly mentioned above, the first retaining member of the locking element is configured to cooperate with a second retaining member secured to the semi-fixed leaf.

According to the example shown in Figures 5 and 6 , the second retaining member is in the form of a rod 50 which is slidably mounted in the lower end of the rabbet of the amount of the semi-fixed leaf 2, and which is held on the latter by means of a support 52 screwed onto said rabbet.

The rod 50 comprises a hollow portion 51 which is guided in translation by the support 52, and a projection 53 which is formed in the extension of the hollow portion 51 and which defines a male part adapted to be engaged in the female part of the bar 10 defined by the two cheeks 14A and 14B.

As illustrated in figures 6 and 7 , a sliding of the rod 50 in a direction of approach of the rod 50 to the cross member 5 of the frame 3, or to the bar 10, is elastically biased by means of a secondary spiral spring 56 which is housed in the hollow portion 51 of the rod 50 so as to cooperate on the one hand with a cylindrical pin 54 which is secured to the support 52 and which passes through the hollow portion 51, on the other hand with an edge of the hollow portion 51 of the bead wire 50 which is defined in a wall from which the projection 53 is formed.

According to the example shown in figures 5 , 7 and 8 , the end of the projection 53 of the bead wire 50 has a ramp of complementary shape with that of the retaining relief defined by the notch 34 of the holding element 30, so that the retaining relief materializes a hard point of maintaining the projection 53 of the rod 50.

Thus, when the bar 10 is in the release configuration, the end of the projection 53 can be kept hooked in the retaining relief due to their complementary shape, as illustrated in FIG. figure 7 . According to the illustrated example, the maintenance of the attachment of the projection 53 in the retaining relief is accentuated by the stress exerted on the bead wire 50 by the secondary spiral spring 56.

In addition, when the bar 10 is in the release configuration, it has been seen that the relief formed by the thickness of the first section 12 and the retaining relief are not really more salient than the other. As a result, the end of the protrusion 53 of the bead wire 50 can be easily released from the retaining relief by a simple pressure exerted on the semi-fixed leaf 2. Indeed, since the bead wire 50 is mounted elastically mobile on the semi-fixed leaf 2, and since the end of the projection 53 has a ramp shape, the rod 50 can pass over the retaining relief and over the relief formed by the thickness of the first section 12 to release the hard point of maintenance, as shown in FIG. figure 8 .

Moreover, as illustrated in figure 2 , the first section 12 of the bar 10 has a slope 13, so that when the bar 10 is in the release configuration and the semi-fixed leaf 2 is open, it is possible to easily pass the projection 53 of the rod 50 over the relief formed by the thickness of the first section 12 to cause the attachment of the projection 53 on the retaining relief.

On the other hand, when the bar 10 is in the locking configuration, it has been seen that the locking relief of the bar 10 defined by the two cheeks 14A and 14B is more pronounced than the retaining relief defined by the notch 34 of the holding member 30, as illustrated in FIG. figure 9 . As a result, the male part defined by the end of the projection 53 of the rod 50 is engaged in the female part defined by the two cheeks 14A and 14B, which prevents the release of the rod 50 even when a pressure is exerted on the semi-fixed leaf 2 and thus locks the latter in the closed position.

The locking device of the present invention also comprises a cam intended to be secured to the movable leaf to cooperate with the control member so as to bias the locking element towards its locking configuration.

According to the example shown in Figures 10 to 12 , the cam 60 is a separate piece of the mobile leaf 1 which is fixed on the latter in the vicinity of a meeting point with the bar 10.

The cam 60 has a useful part 62 which is able to cooperate, when the movable leaf 1 comes into the closed position, with the ramp 17 of the third section 16 of the bar 10 defining the control member. The cooperation between the useful part 62 of the cam 60 and the ramp 17 of the bar 10 causes the latter to slide towards its locking configuration, which makes it possible to lock the semi-fixed leaf 2 in the closed position.

We will now describe a locking device made according to a second embodiment according to the first variant of the present invention.

According to the example shown in figure 13 , the locking member is substantially in the form of a rocker 100 with two ends 140 and 160, so that the first retaining member and the control member are formed in one piece.

The first end 140 of the flip-flop 100 constitutes in this example the first retaining member of the locking element. It is substantially in the form of a parallelepiped in which is formed an opening 180 through the entire thickness of the first end 140.

The first end thus traversed by the opening 180 has two stop walls 140A, 140B which are substantially parallel to each other and which thus define a female part adapted to cooperate with the second retaining member substantially identical to that described in the first embodiment of realization.

The second end 160 of the flip-flop 100 constitutes in this example the control member of the locking element. It is substantially in the form of a prism, which allows to define an inclined portion 162 forming the lower portion of the second end 160, and a substantially straight portion 164 forming its upper part.

A bore 110 is formed in the latch 100 at the junction zone of its two ends.

According to the illustrated example, a ramp 170 is formed in the second end 160. This ramp 170 is configured to cooperate with the cam which will be described later.

According to the illustrated example, the flip-flop 100 is pivotally mounted on a plate 200, which, according to this embodiment, constitutes a displacement guide piece on which the first retaining member and the control member are both mounted.

To the figure 15 , there is shown the mounting of the flip-flop 100 on the plate 200. The plate 200 has an axis support 220 on which can be inserted a pivot axis 300 of the flip-flop 100 to mount and maintain the latter swivel on the plate 200 .

The plate 200 comprises a first projecting portion formed at the longitudinal periphery of the plate 200 and having an inclined portion 130, and a second protruding portion formed on the plate so as to protrude into the opening 180 of the latch 100 when the latter is mounted on the plate 200.

An indentation 340 is formed in the second projecting portion of the plate 200, thus defining a retaining relief similar to that described above for the first embodiment and adapted to cooperate with the second retaining member.

The plate 200 is fixed on the rabbet of a cross member 5 of the frame 3 by screwing, so that the latch 100 can rotate in a direction substantially parallel to the plane of the periphery of the opening. The retaining relief projecting from the plate 200 is thus also fixedly mounted relative to the periphery of the opening.

Thus, the rocker 100 on which are formed the first retaining member 140 and the control member 160 is able to move substantially parallel to the plane of the periphery of the opening between a first position illustrated in FIG. figure 13 , and a second position illustrated in the figure 14 .

The first position is obtained when the flip-flop 100 is in a release configuration of the second retaining member in which the first end 140 of the flip-flop 100 is in the low position and the second end 160 of the flip-flop 100 is in the up position. . The arrangement of the first end of the rocker 100 in a substantially parallelepipedal shape and a suitable choice of its thickness allows the two stop walls 140A and 140B to be substantially flush with the most protruding portion of the retaining relief formed by the notch 340. Thus, the relief formed by the two stop walls 140A and 140B of the rocker 100 and the retaining relief formed by the notch 340 of the plate 200 are not really any more salient than the 'other.

The second position is obtained when the flip-flop 100 is in a locking configuration of the second retaining member in which the first end 140 of the flip-flop 100 is in the up position and the second end 160 of the flip-flop 100 is in position. low. As a result, the two stop walls 140A and 140B are more protruding than the notch 340. As a result, the locking relief thus defined by the two stop walls 140A and 140B is, in this locking configuration, more pronounced than the retaining relief defined by the notch 340 of the plate 200.

The locking device according to the second embodiment also comprises means for biasing the locking element towards its release configuration.

In the example shown in figure 13 these means are in the form of a leaf spring 400, one end bears on the plate 200 and the other end bears on the inclined portion 162 of the second end 160 of the rocker 100.

The leaf spring 400 thus arranged is able to urge the rocker 100 to pivot towards its first position illustrated in FIG. figure 13 and previously described, so to its release configuration.

As previously indicated, the first retaining member of the locking element according to the second embodiment is configured to cooperate with a second retaining member integral with the semi-fixed leaf.

According to the example shown in figure 16 , the second retaining member is in the form of a rod which is substantially identical to the rod described above for the first embodiment, and therefore will not be detailed again for the second embodiment.

The projection of the rod defines a male portion adapted to be engaged in the female portion of the latch 100 defined by the two stop walls 140A and 140B.

According to the illustrated example, the end of the projection of the rod has a ramp of complementary shape with that of the retaining relief defined by the notch 340 of the plate 200, so that the retaining relief materializes a hard point of maintaining the protrusion of the rod similar to that previously described for the first embodiment.

Thus, when the flip-flop 100 is in the release configuration, it has been seen that the two stop walls 140A and 140B of the flip-flop 100 and the retaining relief formed by the notch 340 of the plate 200 are not really more salient than the other. As a result, the end of the projection of the rod can be easily released from the retaining relief by a simple pressure exerted on the semi-fixed leaf 2.

In addition, as illustrated in figure 13 and as previously mentioned, the first protruding part of the plate 200 has an inclined portion 130. This inclined portion 130 provides the same function of facilitating the crossing. of thickness that the slope 13 of the first section 12 of the bar 10 described for the first embodiment.

Finally, when the flip-flop 100 is in the locking configuration, it has been seen that the locking relief defined by the two stop walls 140A and 140B protrudes more than the notch 340 of the plate 200. As a result, the male part defined by the end of the projection of the rod is engaged in the female part defined by the two walls of stops 140A and 140B, which prevents the release of the rod even when pressure is exerted on the leaf semi-fixed 2 and thus locks the latter in the closed position.

The locking device according to the second embodiment also comprises a cam intended to be secured to the movable leaf to cooperate with the control member so as to bias the locking element towards its locking configuration.

According to the example shown in Figures 18 to 21 , the cam 600 is a separate piece of the mobile leaf 1 which is fixed on the latter in the vicinity of a meeting point with the rocker 100.

The cam 600 has a useful part 620 which is adapted to cooperate, when the movable leaf 1 comes into the closed position, with the ramp 170 of the second end 160 of the flip-flop 100 defining the control member. The cooperation between the useful part 620 of the cam 600 and the ramp 107 of the rocker 100 causes the latter to pivot towards its locking configuration, which makes it possible to lock the semi-fixed leaf 2 in the closed position.

In the two embodiments previously described, there is illustrated an implementation of the first variant according to the present invention, wherein the second retaining member is secured to the semi-fixed leaf, and wherein the first retaining member and the control member are adapted to be movably mounted on the periphery of the opening in the vicinity of a meeting point of the two leaves.

We will now describe a locking device according to a third embodiment which represents an illustrative and non-limiting example of the second variant according to the present invention, and which is illustrated with reference to FIGS. Figures 22 to 31 .

Thus, as illustrated in particular at figure 31 , according to this third embodiment, the second retaining member 50 'is integral with the periphery of the opening in the vicinity of a meeting place of the two leaves, while the first member of retaining 14 'and the control member 16' are able to be mounted movably on the semi-fixed leaf 2.

According to the illustrated example, the first retaining member 14 'and the control member 16' are formed in one piece which constitutes the locking element 10 'of the locking device.

Therefore, the first retaining member 14 'and the control member 16' are integral in displacement.

According to this example, it is chosen to mount the locking element 10 'on a moving guide piece 20' which is fixed on the semi-fixed leaf 2 and which is distinct from the locking element 10 '.

More particularly, according to this example, the moving guide piece 20 'comprises an attachment portion 22' adapted to be fixed on the semi-fixed leaf 2 and a guide portion 24 'on which the locking element 10 is mounted. .

The displacement guide piece 20 'has generally a two-winged angle form which are substantially perpendicular to each other and which respectively form the guide portion 24' and the attachment portion 22 '.

The wing forming the guide portion 24 'has a first face turned on the side from which the wing forming the fixing portion 22' stands, and a second face opposite to the first face.

Two reinforcing ribs 25 'protrude from this first face and are connected to the wing forming the fixing portion 22'.

The locking element 10 'is mounted on the flange forming the guide portion 24' so as to protrude from the second face of the latter, therefore on the opposite side to the side from which the flange forming the fastening portion 22 ' stand up.

As illustrated in particular Figures 22, 23 and 28 , the displacement guide piece 20 'is able to be mounted on the semi-fixed leaf 2 in the vicinity of the meeting point of one end of the upright 8' of the semi-fixed leaf 2 intended to come opposite the mobile leaf 1 and one end of one of the two cross members 9 'of the semi-fixed leaf 2.

Thus, the locking element 10 'is found mounted in rabbet of the semi-fixed leaf 2.

More particularly, the wing forming the fixing portion 22 'is housed in a groove 7' that this amount 8 '.

The flange forming the guide portion 24 'is housed at least in part, for example throughout its thickness, in a groove 4' that has this cross member 9 'and which is connected to the groove 7' of the upright 8 '.

The wing forming the fixing portion 22 'has one or more through holes, in particular two holes, through which are traversed by fastening screws (not shown) for fixing the moving guide piece 20' on the half-leaf. fixed 2.

The locking element 10 ', once mounted on the moving guide piece 20', projects at least partly from this crossbar 9 '. As a result, at least a part of the locking element 10 'protrudes from the cross member 9' towards a cross member 5 'of the frame when the semi-fixed leaf 2 is in its closed position.

Therefore, in order to prevent the locking element 10 'from interfering with the closure of the semi-fixed leaf 2, it is provided that this crosspiece 5' of the frame 3 'has a clearance in which the projecting portion of the locking element 10 is accommodated when the semi-fixed leaf 2 is in its closed position.

More particularly, according to this example, the cross 5 'of the frame has a lower part 3' materializing this clearance. Indeed, the cross 5 'has a step defining this lower part 3'.

According to the illustrated example, the first retaining member 14 'and the control member 16' are able to be slidably mounted on the semi-fixed leaf 2.

To do this, the locking element 10 'is able to be slidably mounted on the moving guide piece 20'.

More particularly, one of the elements of the locking element 10 'and the moving guide piece 20' has a female guide portion 11 'adapted to cooperate with a male guide portion 21' that comprises the other of said elements so that the locking element 10 'can slide on the moving guide piece 20'.

According to the illustrated example, the locking element 10 'is substantially in the form of a bar in a first face of which the female guide portion 11' is formed, while the male guide portion 21 'is formed in the second face of the wing forming the guide portion 24 'of the moving guide piece 20'.

Thus, the first face of the bar forming the locking member 10 'is opposite the flange of the displacement guide piece 20' which forms its guide portion 24 '.

According to the illustrated example, the female guide portion 11 'consists of a groove, while the male guide portion 21' consists of a slide whose dimensions are adapted so that it is able to engage with the groove for sliding in the latter.

Both the groove and the slider are T-shaped so that the locking member 10 'can slide relative to the moving guide piece 20' while making it difficult to separate the 10 'locking relative to the moving guide piece 20'.

According to the illustrated example, the locking element 10 'has a recess formed in a second face of the bar which is opposite to the first face. As a result, the locking element 10 'has two walls which are substantially parallel to the plane of the semi-fixed leaf 2, when the locking element 10' is mounted on the semi-fixed leaf 2. Thus, these two walls are substantially parallel to the plane of the perimeter of the opening when the semi-fixed leaf 2 is in its closed position.

Each of these two walls has clearance, for example a cutout, so as to have a portion of smaller thickness 12 'and a portion of greater thickness 14'.

As illustrated in particular Figures 26 and 27 , the control element 16 'is formed in continuity with the two portions of greater thickness 14' on the side closest to the upright 8 'of the semi-fixed leaf 2, when the locking element 10' is mounted on the semi-fixed leaf 2.

The two portions of smaller thickness 12 'are formed in continuity respectively of the two portions of greater thickness 14' on the side farthest from the upright 8 'of the semi-fixed leaf 2, when the locking element 10' is mounted on the semi-fixed leaf 2.

The two portions of greater thickness 14 'form two cheeks 14A' and 14B 'which are substantially parallel to each other and which thus define a female part which is adapted to cooperate with the second retaining member which will be described later.

Thus, according to this particular example, these two cheeks 14A 'and 14B' are both able to translate substantially parallel to the plane of the perimeter of the opening, when the semi-fixed leaf 2 is in its closed position.

The second face of the wing forming the guide portion 24 'of the moving guide piece 20' has a notch 28 'defining a retaining relief, here hollow form of rounded (or otherwise concave), suitable to cooperate with the second retainer which will be more detailed after.

Thus, according to the illustrated example, since the displacement guide piece 20 'is fixed on the semi-fixed leaf 2, the retaining relief which is defined by the notch 28' that this piece has is therefore mounted fixed by relative to the semi-fixed leaf 2.

As illustrated in figure 31 , in order to prevent the male guiding portion 21 ', which has the wing forming the guide portion 24', from impeding the cooperation of this retaining relief with the second retaining member, a notch is made in the male guide portion 21 'at the place of correspondence with the notch 28', so that the male guide portion 21 'is dissociated into two sections extending on either side of the notch 28'.

The locking element 10 'is able to move substantially parallel to the plane of the semi-fixed leaf 2 by translation.

When the semi-fixed leaf 2 is in its closed position, the locking element 10 'is able to move substantially parallel to the plane of the perimeter of the opening by sliding between a first position illustrated in particular to the figures 23 , 25 and 26 , and a second position illustrated in particular to figures 27 , 28 and 29 .

The first position is obtained when the locking element 10 'is in a so-called release configuration of the second retaining member in which the two portions of smaller thickness 12' respectively of the two walls of the locking element 10 'are have opposite the notch 28 'of the moving guide piece 20'.

The thickness of the two portions of smaller thickness 12 'is adapted so that the edges of the notch 28' are substantially flush with the free edge of the two portions of smaller thickness 12 ', as illustrated in particular in FIG. figure 23 .

As a result, the relief formed by the thickness of the smaller thickness portions 12 'and the retaining relief formed by the notch 28' of the moving guide piece 20 'are not really any more prominent than the the other.

The second position is obtained when the locking element 10 'is in a so-called locking configuration of the second retaining member in which the two cheeks 14A' and 14B 'of the locking element 10' are opposite the notch 28 'of the moving guide piece 20'.

The thickness of the two cheeks 14A 'and 14B' is adapted so that they are more protruding than the notch 28 'on either side of the latter.

As a result, the locking relief thus defined by the two cheeks 14A 'and 14B' is, in this locking configuration, more pronounced than the retaining relief defined by the notch 28 'of the moving guide piece 20' .

It should be noted that this relief relief is identical in the release configuration and in the locking configuration, which can be derogated without departing from the scope of the present invention.

The locking device according to this third embodiment also comprises means for biasing the locking element 10 'towards its release configuration.

According to the example illustrated in particular in figure 31 these means are in the form of a first spiral spring 40 '.

This first spiral spring 40 'is housed at least partly in the cavity formed by the two ribs 25' of the displacement guide piece 20 'previously described.

A first one of the two ends of the primary scroll spring 40 'is attached to the moving guide piece 20', while the other end of this spring is attached to the locking member 10 '.

The primary spiral spring 40 'thus arranged is able to urge the locking element 10' in sliding towards its first so-called release position described above.

As already briefly mentioned above, the first retaining member of the locking element 10 'is able to cooperate with a second member retaining which is integral with the periphery of the opening in the vicinity of a meeting point of the two leaves when they are both in the closed position.

For example, the second retaining member may be positioned around the periphery of the opening at the precise location where the two leaves meet when they are both in the closed position, or offset from that location on the side. semi-fixed leaf or movable leaf, provided only that the position of the second retaining member is adapted to allow its cooperation with the first retaining member of the locking element 10 'when the semi-fixed leaf 2 is in its closing position.

According to the example shown in figure 31 the second retaining member is in the form of a pin 50 '.

The useful end of the pin 50 'is rounded, while its other end is widened and is turned towards the periphery of the opening.

The pin 50 'is movably mounted in a hollow sleeve 54' fixed with respect to a support piece 52 'of the pin 50', the sleeve 54 'being in the illustrated example formed in one piece with this support piece 52 .

The diameter of the sleeve 54 'is adapted to guide in translation the pin 50', in particular in the direction perpendicular to the crossbar 5 'of the frame.

The pin 50 'is elastically mobile.

To do this, according to the illustrated example, an elastic biasing member, in particular a second spiral spring 56 ', is placed at the bottom of the hollow sleeve 54' so as to bear on the support piece 52 '.

The pin 50 'is placed in the sleeve 54' with its widened end bearing on this spring 56 'so that the pin 50' is elastically biased by the latter in the direction of a distance relative to the piece of support 52 '.

It follows that a displacement of the pin 50 'in a direction of approaching said pin 50' towards the semi-fixed leaf 2, when the latter is in its closed position, is resiliently biased by the elastic biasing element.

The free edge of the sleeve 54 'is deformed on assembly once the pin 50' has been introduced into the sleeve 54 ', so that the free end of the sleeve 54' undergoes a local reduction in its diameter so that the pin 50 'and crimped is retained by cooperation of its enlarged end with the deformed free edge of the sleeve 54', and thus prevent the pin 50 'can not escape from its housing under the effect of the bias exerted by the biasing element.

The local reduction of the diameter of the free end of the sleeve 54 'also makes it possible to improve the translational guidance of the pin 50' when the diameter thus reduced is adapted to cooperate with the periphery of the useful part of the pin 50 '. as represented in particular in the figure 23 .

The support piece 52 'is fixed in the clearance that the crosspiece 5' of the frame provides so as not to hinder the closing of the leaves while allowing the pin 50 'to cooperate with the locking element 10'.

More particularly, the support piece 52 'is fixed on the lower part 3' of the crossbar 5 '.

The support piece 52 'has a plurality of one or more through-holes, in particular two holes, which can be traversed by fastening screws (not shown).

The useful end of the pin 50 'defines a male portion which is adapted to engage in the female part of the locking element 10' defined by the two cheeks 14A 'and 14B'.

Moreover, as illustrated in particular in figure 23 , the curvature of the useful end of the pin 50 'is substantially the same, in particular slightly more pronounced, than the curvature of the notch 28' of the moving guide piece 20 '. As a result, the retaining relief defined by the notch 28 'materializes an example of means forming a hard point for holding the pin 50'.

Thus, when the locking member 10 'is in the release configuration, the useful end of the peg 50' can be held in the retaining relief due to their respective shapes, as shown in FIG. figure 23 .

In addition, according to the illustrated example, the maintenance of this attachment is advantageously accentuated by the bias exerted by the second spiral spring 56 '.

In addition, when the locking element 10 'is in the release configuration, it has been seen that the relief formed by the thickness of the two smaller thickness sections 12' and the retaining relief are not really more salient. one than the other. As a result, the useful end of the pin 50 'can be easily released from the retaining relief by a simple pressure exerted on the semi-fixed leaf 2. Indeed, since the pin 50' is mounted elastically mobile around the periphery of the 'opening, and since the end of the useful part of the pin 50' is rounded, the pin 50 'can pass over the relief relief and over the relief formed by the thickness of the thinner section 12 ', which is on the opening side of the semi-fixed leaf 2, so that the pin 50' is released from the hard stitch, as shown in figure 24 .

Moreover, as illustrated in particular in figure 24 , the retaining relief is at least partly housed in the groove 4 'of the cross member 9'.

This relief is advantageously adapted so that it is substantially flush with the outer edges of the groove 4 'forming an actual edge of the cross member 9' of the semi-fixed leaf 2.

To do this, according to this example, the thickness of the two portions of smaller thickness 12 'of the locking element 10', on the one hand, and the thickness of the moving guide piece 20 ', of on the other hand, are adapted so that the free edge of the two portions of smaller thickness 12 'and the edges of the notch 28' substantially flush with the outer edges of the groove 4 '.

It follows that, during a closing movement of the semi-fixed leaf 2, the second retaining member can play the role of a cam adapted to follow a ramp portion defined by a proper edge of the cross member 9 ' semi-fixed leaf 2 and the relief relief.

It is thus understood that, during a closing movement of the semi-fixed leaf 2, the attachment of the second retaining member in the retaining relief can thus be smooth.

This effect is all the better provided that this edge of the crosspiece 9 'naturally has an inclined portion 9A', as is the case of the semi-fixed leaf 2 shown in FIG. figure 24 , which facilitates the contacting of the second retaining member with the ramp portion thus defined during a closing movement of the semi-fixed leaf 2.

On the other hand, when the locking element 10 'is in the locking configuration, it has been seen that the locking relief formed by the thickness of the two cheeks 14A' and 14B 'is more pronounced than the retaining relief defined by the notch 28 'of the moving guide piece 20', as illustrated in FIG. figure 28 . As a result, the male part defined by the pin 50 'is engaged in the female part defined by the two cheeks 14A' and 14B ', which prevents the release of the pin 50' even when a pressure is exerted on the semi-fixed leaf 2. As a result, the semi-fixed leaf 2 is locked again in the closed position.

The locking device according to this third embodiment further comprises a cam 60 'intended to be integral with the mobile leaf 1 to cooperate with the control member 16' so as to bias the locking element 10 'towards its configuration. locking, when the semi-fixed leaf 2 is in its closed position.

According to the example shown in Figures 26 and 27 , the cam 60 'is a separate part of the movable leaf 1 which is adapted to be fixed thereto in the vicinity of a meeting point with the control member 16'.

More particularly, the cam 60 'is housed at least partly in a groove 71' that the amount 81 'of the movable leaf 1 intended to come opposite the semi-fixed leaf 2.

According to the illustrated example, the cam 60 'has a first wing housed in this groove 71' and a second wing perpendicular to the first housed in a groove that has the crosspiece of the mobile leaf 1.

According to the example illustrated in particular Figures 26 and 27 the cam 60 'has a rounded useful part 62'.

The useful part 62 'is formed in the first wing of the cam 60'.

The cam 60 'is mounted on the mobile leaf 1 so that at least the useful part 62' of the cam 60 'protrudes from the upright 81' of the mobile leaf 1, in the vicinity of one end of this upright 81 ', for example the lower end.

Thus, according to this example, the useful part 62 'of the cam 60' is able to exceed this amount 81 'toward the semi-fixed leaf 2 when the semi-fixed leaf 2 and the mobile leaf 1 are both in position closure.

Similarly, the locking element 10 'of the locking device is mounted on the semi-fixed leaf 2 so that at least the control member 16' of this locking element 10 'is able to protrude from the upright 8 'of the semi-fixed leaf 2 intended to come opposite the movable leaf 1, in the vicinity of one end of this upright 8', for example the lower end of this upright 8 '.

Thus, according to the illustrated example, the control member 16 'of the locking element 10' is able to protrude from this upright 8 'towards the moving leaf 1 when the semi-fixed leaf 2 and the mobile wing 1 are both in the closed position.

As a result, the control member 16 'is adapted to cooperate with the cam 60' when the semi-fixed leaf 2 is in its closed position, on the one hand, and when the mobile leaf 1 is in a movement of closing until it is closed, on the other hand.

In particular, the control member 16 'has a ramp 17' formed in the end of the retaining element 10 'intended to come opposite the mobile leaf 1, when the semi-fixed leaf 2 is in its position of closing.

Thus, the ramp 17 'is configured to cooperate with the rounded useful part 62' which the cam 60 'presents, when the semi-fixed leaf 2 is in its closed position, on the one hand, and when the mobile leaf 1 is in a closing movement until it is closed, on the other hand.

The cooperation between the useful part 62 'of the cam 60' and the ramp 17 'of the control member 16' causes the locking element 10 'to slide towards its locking configuration during the closing movement of the movable leaf. 1, which makes it possible to lock the semi-fixed leaf 2 in the closed position.

In the third embodiment previously described, there is shown a movable leaf 1 and a semi-fixed leaf both comprising a hollow frame formed by two crosspieces and two uprights, within which frame a window is mounted.

In the third embodiment previously described, there is shown a first retaining member and a control member adapted to be slidably mounted on the semi-fixed leaf, so that one could predict, without departing from the scope of this invention, to provide pivoting. To do this, one could, for example, adapt the rocker previously described in the second embodiment to mount it on the semi-fixed leaf and so that the first retaining member of this rocker is able to cooperate with a pion analogous to that described in the third embodiment.

Furthermore, in the third embodiment previously described, there is shown a single locking device mounted in the vicinity of the lower rail of the periphery of the opening, so that one could predict, without departing from the scope of this invention, to mount a single locking device similar to that described above in the vicinity of the upper rail of the periphery of opening, or to simultaneously mount two locking devices respectively on the lower and upper rails.

One could also provide, without departing from the scope of the present invention, to mount a first locking device according to any one of the embodiments described above on one of the two crosspieces (lower or upper) of the periphery of the opening , and a second locking device according to another of these embodiments on the other crossbeam.

In the three embodiments described above, there is shown a first retaining member comprising either two cheeks or two stop walls which define a female part adapted to engage a male part of the second retaining member, so that one could provide, without departing from the scope of the present invention, a first retaining member comprising only one cheek or a single stop wall to define said female portion and which protrudes at the front of the locking element to lock the semi-fixed leaf in the closed position. In addition, in the three embodiments previously described, there is shown a semi-fixed leaf and a movable leaf which are both mounted in a frame comprising two uprights and two sleepers, so that one could predict, without leaving the door. of the present invention, a different mounting of the two leaves, provided that the semi-fixed leaf is adapted to cooperate with the mobile leaf to close an opening. In particular, it is possible to provide, without departing from the scope of the present invention, a semi-fixed leaf and a movable leaf which are mounted in a frame comprising two uprights and a single cross member, or even no cross. In this case, a locking element according to the present invention (when implementing the first variant), or a second retaining member according to the present invention (when implementing the second variant), could be mounted directly on the periphery of the opening, in the vicinity of a meeting place of the two leaves.

Claims (15)

Locking device for a semi-fixed leaf (2) cooperating with a movable leaf (1) to close an opening, the movable leaves (1) and semi-fixed (2) extending substantially in a plane around the periphery of the opening when both are in the closed position, characterized in that it comprises: a locking element (10 ') comprising a first retaining member (14') adapted to cooperate with a second retaining member (50 ') integral with the periphery of the opening in the vicinity of a meeting place of the two leaves, and a control member (16 '), the first retaining member (14') and the control member (16 ') being able to be mounted movably on the semi-fixed leaf (2) so that, when the semi-fixed leaf (2) is in its closed position, the first retaining member (14 ') and the control member (16') can move substantially parallel to the plane of the perimeter of the opening between a locking configuration in which a cooperation of the first retaining member (14 ') with the second retaining member (50') is adapted to be performed to lock the semi-fixed leaf (2) and a release configuration in which said cooperation can be released; means for biasing the locking member (10 ') towards its release configuration; and a cam (60 ') intended to be integral with the movable leaf (1) to cooperate with the control member (16') so as to urge the locking element (10 ') towards its locking configuration, when the leaf semi-fixed (2) is in its closed position. Device according to claim 1, characterized in that it comprises a displacement guide piece (20 ') which is adapted to be fixed on the semi-fixed leaf (2) and on which the locking element (10) is mounted. ') so that said locking element (10') protrudes at least partly from a cross member (9 ') of the semi-fixed leaf (2) to allow the first holding member (14') to cooperate with the second retaining member (50 '). Device according to claim 2, characterized in that the displacement guide piece (20 ') is adapted to be mounted on the semi-fixed leaf (2) at near a meeting point of one end of the upright (8 ') of the semi-fixed leaf (2) intended to come opposite the mobile leaf (1) and one end of said leaf crossmember (9') semi-fixed (2). Device according to Claim 2 or 3, characterized in that the said means for biasing the locking element (10 ') comprise a spiral spring (40'), one of whose two ends is fixed to the moving guide piece (20 '). '), while the other end of this spring (40') is fixed to the locking element (10 '). Device according to any one of claims 1 to 4, characterized in that , to allow the cam (60 ') to cooperate with the control member (16'), at least the useful part (62 ') of said cam (60 ') is able to protrude from the upright (81') of the movable leaf (1) intended to come opposite the semi-fixed leaf (2) to project from said upright (81 ') in the direction of the semi-leaf. fixed (2), while at least the control member (16 ') of the locking element (10') is able to protrude from the upright (8 ') of the semi-fixed leaf (2) intended to to come next to the movable leaf (1) to pass from this last upright (8 ') towards the moving leaf (1), when the semi-fixed leaf (2) and the movable leaf (1) are both in position closure. Device according to any one of claims 1 to 5, characterized in that the first retaining member (14 ') and the control member (16') are integral in displacement. Device according to claim 6, characterized in that the first retaining member (14 ') and the control member (16') are formed in one piece. Device according to any one of claims 1 to 7, characterized in that the control member (16 ') has a ramp (17') adapted to cooperate with the cam (60 '). Device according to claims 5, 7 and 8, characterized in that the ramp (17 ') of the control member (16') is formed in one end of the locking element (10 ') which is intended to come facing the mobile leaf (1), when the semi-fixed leaf (2) is in its closed position. Device according to any one of claims 1 to 9, characterized in that one of said first and second retaining members comprises a male part adapted to be engaged in a female part (14A ', 14B') formed on the other organ restraint. Device according to any one of claims 1 to 10, characterized in that the second retaining member (50 ') is positioned on the periphery of the opening being offset on the side of the semi-fixed leaf (2) relative to the precise location where the two leaves (1, 2) meet when they are both in the closed position. Device according to any one of claims 1 to 11, characterized in that it comprises a retaining relief (28 ') adapted to be integral with said other of said objects, and in that the second retaining member (50') is elastically movable to catch on said retaining relief (28 ') and to release it when the locking element (10') is in its release configuration. Device according to claim 12, characterized in that the first retaining member (14 ') comprises a locking relief which, in the locking configuration, is more pronounced than the retaining relief (28') in the release configuration. Device according to claim 13, characterized in that the retaining relief is formed by the locking relief when the first retaining member is in the release configuration. Device according to any one of claims 1 to 14, characterized in that the first retaining member (14 ') and the control member (16') are able to be slidably mounted on the semi-fixed leaf (2) .

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