EP3819445A1 - Safety device for window handle - Google Patents

Abstract

Safety device (100) for window (200) or door, intended to be mounted between a handle (210) and an opening and crossed by a square (230) of the handle, comprising a body (10) and a locking mechanism (30) making it possible to lock and unlock the rotation of the square, said device comprising two push buttons (20) on two opposite faces of the body, each of said buttons actuating a locking member (32, 33), the locking mechanism having a locked position, which corresponds to releasing the buttons, in which the locking members are able to block the square in rotation so as to prevent the opening of the leaf, and an unlocked position, which corresponds to simultaneous pressing on the two buttons, in which the locking members are spaced apart from one another, freeing the square to rotate.

Description

TECHNICAL AREA

The present invention belongs to the field of building supplies, in particular hardware for windows, patio doors and the like, and more particularly relates to a safety device for a window handle.

STATE OF THE ART

Windows, patio doors or bay windows are frequently used by burglars to attempt to break into target buildings. These exits are in fact particularly vulnerable and often less secure than the entrance doors. However, there are different so-called “anti-intrusion” or “anti-burglary” security devices and systems for each type of window.

In addition to the intrinsic resistance of a window, which necessarily depends on the quality of its constituent parts (hinges, screws, nails, handle, etc.), the additional security systems make it possible to reinforce the resistance of the window in the face of attacks. break-in type.

Among the most widespread security systems, we can cite anti-bolt strikes, preventing the window from coming out of its hinges from the outside, conventional locks, half-openers, security grilles, etc. However, these systems are well known to burglars who have no difficulty in thwarting them, and are for the most part bulky and unsightly.

Another way to increase the security of windows is to equip them with shutters, casements or rollers. Shutters can certainly be very effective, when they are made of extruded metal for example, but their use is problematic during the day because their closure prevents light from entering through the window. window, and their cost remains quite prohibitive especially when it comes to fitting all the potentially passable windows of a house.

There are also known security systems for handles, installed in situ, allowing the locking of the handles by discreet mechanisms such as buttons, keys and others. The Swiss company HOPPE AG markets secure handles under an eponymous registered trademark, HOPPE®, which is the subject of several patents and patent applications, the most relevant of which are listed below.

Some handles offer more security against unwanted openings from the outside by the addition of organs and locking and / or blocking mechanisms in the rosette, and sometimes thanks to a connected box which sends alerts in the event of an accident. 'actuation of the handle. These solutions remain very ineffective against burglary and completely unsuitable for the safety of children because they can be easily operated like simple handles.

Other handles offer more security against unwanted openings from the outside (burglars) and inside (children) and can be lockable, as described in the documents. EP1255005A1 and EP1357243A2 , or provided with a push button, as described in the document EP0260517A2 , or a locking button. Thus, to enter through the window, the burglar will have to use more “intrusive” methods which will leave traces that can constitute solid evidence with insurers for compensation.

Typically, in keyed handles, a ratchet system prevents the burglar from operating the window opening from the outside, and the handle anchor is reinforced to resist tearing.

In connection with the invention, one can also cite the document FR2606445A1 which describes a device inserted between the handle of a window and the frame thereof, allowing manual or spontaneous locking of the handle, in order to limit attempted break-ins and accidents by children. This device consists of a box comprising a slide in which is housed a lock plate, the box comprising a barrel provided with a cam, and an articulated lever on which is fixed a tension spring whose other point of fixation is located on said box. The lever extends onto the latch plate to fit between the two tabs of the latch plate. When the user introduces the key into the cylinder, the latter by turning pivots the cam, which causes the lever and the lock plate to lower. The lock plate fits "astride" on the square, thus immobilizing the window handle.

Despite the diversity of their mechanisms, the solutions mentioned are not sufficient to effectively secure windows and the like. In fact, on the one hand, the presence of a key or an easily actuated button does not prevent a careless child from opening the window by simply imitating the handling of an adult or by insisting on unlocking the door. handle. On the other hand, a determined burglar will not shrink from the presence of a key or a push button, and may, by making a hole barely larger than his wrist, insert his hand or a suitable tool to turn the window handle.

PRESENTATION OF THE INVENTION

The present invention aims to overcome the drawbacks of the prior art described above, in particular to strengthen the security of windows and the like against unwanted intrusions, to delay and limit break-ins, and to protect unwary children from the risks of accidental defenestrations and access to dangerous places.

To this end, the present invention relates to a security device for a window, door or the like intended to be mounted between a handle and an opening and crossed by a square of the handle, comprising a body and a locking mechanism for locking. and unlock the rotation of the square. This device is remarkable in that it comprises two push buttons on two opposite sides of the body, each of said buttons actuating a locking member, and in that the locking mechanism has a locked position, corresponding to a release of the buttons, in in which the blocking members are able to block the square in rotation so as to prevent the opening of the leaf, and an unlocked position, corresponding to simultaneous pressing of the two buttons, in which the blocking members are spaced apart. one of the other freeing the rotation of the square.

According to an advantageous embodiment, each locking member comprises a rod extending along a longitudinal axis of the body and a U-shaped branch extending perpendicularly to said rod, the branches being arranged opposite so that in position locked, internal surfaces of said branches delimit a blocking volume blocking the rotation of the square which passes through it.

Advantageously, each locking member is slidably mounted in the body along a longitudinal axis of said body, being fixed to a push button, and the push buttons are each constrained by a spring.

More particularly, each spring is a compression spring arranged between the body and a collar of the rod of the locking member fixed to the button constrained by said spring, and the simultaneous pressing on the two buttons produces a separation of the branches, the 'one relative to the other, freeing in rotation the square which passes through the safety device.

According to the invention, the body has a front face and a rear face, crossed by a central opening capable of receiving the square.

Advantageously, the two buttons are placed on an upper face and a lower face of the body.

According to one embodiment, the body comprises fixing means to be mounted, interposed, between the handle, or a rosette thereof, and the opening of the window.

Particularly advantageously, the safety device further comprises an extension and coupling member capable of receiving the square at one end, and of being coupled in rotation in a housing of the opening at the other end.

Another subject of the invention is a window or door handle, equipped with a safety device as shown, and a window comprising such a handle.

The fundamental concepts of the invention having just been explained above in their most elementary form, other details and characteristics will emerge more clearly on reading the description which follows and with reference to the appended drawings, giving by way of nonlimiting example an embodiment of a safety device in accordance with the principles of the invention.

BRIEF DESCRIPTION OF THE FIGURES

The different figures and the elements of the same figure are not necessarily represented on the same scale. In all of the figures, identical or equivalent elements bear the same reference numeral.

• Figure 1 : une vue en perspective d'un dispositif de sécurité selon l'invention ;
• Figure 2 : une vue en perspective du dispositif de sécurité monté sur une fenêtre à poignée ;
• Figure 3 : une vue de face du dispositif de sécurité de la figure 1 ;
• Figure 4 : une vue arrière du dispositif de sécurité de la figure 1 ;
• Figure 5 : une vue de côté (de droite) du dispositif de sécurité de la figure 1 ;
• Figure 6 : une vue de dessus du dispositif de sécurité de la figure 1 ;
• Figure 7 : une vue en perspective d'un dispositif de sécurité selon l'invention avec les demi-coques constitutives du corps séparées, laissant entrevoir le mécanisme de blocage ;
• Figure 8a : une vue en plan du dispositif de sécurité de la figure 7 sans la demi-coque arrière, avec le mécanisme de blocage verrouillé pour bloquer en rotation un carré de poignée ;
• Figure 8b : une vue selon la figure 8a, avec le mécanisme de blocage déverrouillé pour libérer en rotation le carré de poignée ;
• Figure 9a : une vue éclatée schématique du montage d'une poignée sur un dispositif de sécurité comprenant un prolongateur de carré ;
• Figure 9b : le montage de la figure 9a en vue de coupe.

It is thus illustrated in:

• Figure 1 : a perspective view of a safety device according to the invention;
• Figure 2 : a perspective view of the security device mounted on a window with a handle;
• Figure 3 : a front view of the safety device of the figure 1 ;
• Figure 4 : a rear view of the safety device of the figure 1 ;
• Figure 5 : a side view (from the right) of the safety device of the figure 1 ;
• Figure 6 : a top view of the safety device of the figure 1 ;
• Figure 7 : a perspective view of a safety device according to the invention with the constituent half-shells of the body separated, allowing the locking mechanism to be seen;
• Figure 8a : a plan view of the safety device of the figure 7 without the rear half-shell, with the locking mechanism locked to lock a square handle in rotation;
• Figure 8b : a view according to the figure 8a , with the locking mechanism unlocked to release the square handle in rotation;
• Figure 9a : a schematic exploded view of the assembly of a handle on a safety device comprising a square extension;
• Figure 9b : the assembly of the figure 9a in cutting view.

DETAILED DESCRIPTION OF EMBODIMENTS

In the embodiment described below, reference is made to a security device intended primarily for window handles and the like. This non-limiting example is given for a better understanding of the invention and does not exclude the use of the device on door handles, for by example securing access for children to certain risky places such as balconies, terraces, etc.

In the remainder of the description, the term “handle” designates both a single handle and a handle combined with a rosette, and the term “window” indirectly designates a window opening. Thus, when it comes to defining the location of the safety device between the handle and the window, it will be understood, unless otherwise indicated, that said device is placed between the rosette of the handle and the opening of the window.

The figure 1 shows a safety device 100 comprising mainly a body 10, two push buttons 20 for unlocking, on one side and the other of the body 10, and a locking mechanism 30 actuated by said buttons, the simultaneous pressure of the two buttons allowing to unlock said mechanism.

With reference to the figure 2 , the safety device 100 can be mounted on a window 200 with a handle 210 by being inserted between said handle and the window sash. Indeed, the safety device 100 can be crossed by the square of the handle 210 and thus makes it possible to block or authorize the rotation of said square and, thereby, the actuation of said handle to open the window. In the example of figure 2 , the safety device 100 is placed between the frame of the window sash 200 and a rosette 220 cooperating with the handle 210.

As pointed out above, it is necessary to simultaneously press the two opposite buttons 20 to unlock the locking mechanism of the safety device 100 and thus release the rotating handle 210 to open the window 200. The operation of the locking mechanism will be detailed below but we can already note the difficulty of unlocking such a mechanism from the outside, by a burglar, and from the inside by a child below a certain age. Indeed, in both cases it is necessary to use both hands to open the window: one hand simultaneously presses the two buttons while the other hand turns the handle. Therefore, the burglar will have to make a larger hole in the window to access the security device with some freedom of movement, which will deter the burglar or at the very least delay the break-in. In addition, children under a certain age do not have their hands large enough to press both buttons simultaneously. with one hand and attempt to turn the window handle with the other hand, nor the force necessary to press said buttons with one hand.

The body 10, according to the illustrated embodiment, has a parallelepipedal shape defining a front face 11a, able to receive the handle of the window, a rear face 11b, intended to bear against the frame of said window, one face of top 12a and a bottom face 12b, each receiving a push button 20, and side faces 13.

The body 10 is crossed between its front 11a and rear 11b faces by a central opening 111, which will receive the square of the handle, and by fixing holes 112 by means of which the safety device 100 can be fixed between the rosette of the handle and window frame. The central opening 111 is located substantially in the center of the body 10, has a circular shape adapted to the passage and to the rotation of the square, which also passes through the locking mechanism 30 as explained below. The shape of the central opening can be any, oval, square or other provided to allow cooperation with the dimensions of the locking mechanism 30 for the passage of the square handle. The fixing holes 112, according to the illustrated embodiment, are for their part placed on one side and the other of the central opening 111, at an equal distance therefrom, along a median longitudinal axis of the body 10. .

The fixing holes 112, according to the illustrated embodiment and with reference to figures 5 and 6 , are adapted to handles with rosette and have an edge in the plane of the front face 11a of the body 10 and an opposite edge projecting from the rear face 11b. This configuration allows the security device to receive the rosette on its front face 11a, with the ends of the rosette inserted into the fixing holes 112 through said front face, and to fit into the window frame via the projecting parts. holes 112 in the manner of a rosette. In other words, the protruding parts of the fixing holes 112 extend the end caps of the rosette and replace them to establish the fixing on the window frame.

However, this particular configuration is not mandatory and may change depending on the type of handle and rosette. Indeed, the safety device 100 according to the embodiment described is designed to be marketed alone and adapts to existing handles thanks to a simple assembly, but can also present variants incorporated and marketed with handles in a single set.

Advantageously, the body 10 can be made up of two half-shells, front 10a and rear 10b, which can be fitted together as shown in FIG. figure 7 , external faces of said half-shells constituting the front 11a and rear 11b faces of the body 10. The advantage of this design lies in the possibility of opening the safety device 100 if necessary, for a repair for example. . According to the embodiment illustrated, the two half-shells 10a and 10b are fixed to one another via fixing holes 14a and 14b facing each other which for example receive screws. Preferably, the assembly of the two half-shells is carried out by snap-fastening or by any rapid and reversible fixing system.

In addition, the upper and lower faces of the half-shells 10a and 10b are shaped to receive the push buttons 20, thanks to peripheral edges bypassing said buttons leaving a functional play.

Each push button 20, according to the illustrated embodiment, has a cylindrical shape with a circular base surmounted by an end 21 shaped to better cooperate with the finger which will press said button. The two buttons 20 are placed on the upper faces 12a and lower 12b of the body 10 and will be designated, when necessary, by upper button and lower button.

Furthermore, according to the illustrated embodiment, the axes of the buttons 20 are substantially parallel to the median longitudinal axis of the body 10, being offset at an equal distance from one side and the other thereof. This particular arrangement of the push buttons 20 matches the operation of the locking mechanism 30.

Indeed, the locking mechanism 30 is composed of two locking members, each member being integral with a push button 20 and comprising a longitudinal rod 32 which extends along the axis of said button and a transverse branch 33 which s' extends in a direction perpendicular to that of the rod 32. The locking members are slidably mounted in the body 10.

With reference to the figure 8a on which the locking mechanism is shown flat, each rod 32 is fitted to a base 22 of the push button 20 and ends with a collar 321 at its free end. Each rod 32 is mounted as a slide with respect to the body 10 between a main guide element 15 and additional guide elements 16, said guide elements being in this case manufactured in one piece with the front half-shell 10a according to the mode realization illustrated.

Each locking member is mounted, via the free end of its rod 32, on a spring 35 placed between the collar 321 of said rod and the body 10, and more precisely between the collar and a cylindrical housing formed in the upper edge or lower half-shells 10a and 10b. Thus the movement of the blocking members is conditioned by both the pressure on the buttons 20 and the constraint of the springs 35, so that each button 20 is monostable “normally open”. In other words, the actuation of the buttons 20, and therefore of the locking mechanism, requires continuous pressure, the cessation of which produces a return of said buttons to their stable position under the effect of the return of the springs 35.

The transverse branches 33 each have a U-shape and are arranged facing one another so as to delimit, when they are in contact, a volume 31 which substantially corresponds to the volume of the square of the handle as shown in the figures 3, 4 and 7 . The branches 33 have dimensions adapted to block and release in rotation the square inserted in the volume 31 according to their mutual spacing as explained in more detail below.

Indeed, the safety device 100 has a locked state, shown in figure 8a , with the buttons 20 released and the square 230 locked in rotation between the branches 33, and an unlocked state, shown in figure 8b with the buttons 20 pressed simultaneously and the branches 33 apart, freeing the square 230 in rotation.

With reference to the figure 8a , the push buttons 20 are in their stable position and the springs 35 are in their equilibrium position, preferably pre-stressed to keep the buttons 20 in abutment against the body 10 by their bases 22, each base having a peripheral surface which comes in abutment against the body 10. Similarly, the rods 32 are in abutment by their flanges 321 against the guide elements 15 and 16. In this position, the branches 33 fit around the square 230 of the handle and block it in rotation. around its axis, the internal faces of the U-shaped branches 33 defining a volume complementary to the square in which said square is blocked in rotation, or at the very least is arched at an angle less than the angle necessary for the opening of the window.

With reference to the figure 8b , the buttons 20 are simultaneously pressed P pushing the locking members in two opposite directions. Consequently, the branches 33 move away from one another and release the square 230 in rotation, the outline in broken lines in the figure representing the initial position of said square. It should be noted here that the square 230 can be released in rotation before the maximum separation of the branches 33. In practice, the central opening 111 of the body 10 must be released so that the square regains all its rotational mobility.

Thus, releasing the buttons 20 allows the springs 35 to return the locking members to their initial position with the branches 33 contiguous, corresponding to the locked state of the safety device 100.

It should also be noted that the pressure force required to press the buttons 20 depends directly on the stiffness of the springs 35. Preferably, the pressure force should not be within the reach of children.

According to the illustrated embodiment, to simultaneously press the push buttons 20 with one hand, a user can for example use his index finger and his thumb to press the upper button and the lower button respectively. For this purpose, the safety device must have a length, and more precisely a distance between the ends of the push buttons, suitable for an adult hand of average size.

When it is installed between the handle and the frame of an existing window, the safety device 100 provides an additional thickness which can prevent the square, of limited length, from reaching its housing in said frame. This situation is illustrated on the figures 9a and 9b .

For this reason there is provided a square extension 50 which fits into the square 230 by a first end, hollow, and inserted into the housing 240 by a second end, solid, opposite to the first, the shape of the extension square resembling that of a socket head bolt.

Therefore, the diameter of the square 230 must be substantially equal to the internal diameter of the hollow end and the diameter of the solid end of the extension 50. Preferably, the dimensions of the blocking volume 31, in other words the dimensions of the branches 33 of the locking mechanism, are adapted to the external diameter of the hollow end of the extension 50, the difference between the external and internal diameters of said end being such that the locking in rotation takes place both on the extension and on the square alone, when the latter has sufficient length and the use of the extension is no longer necessary.

In view of the present description, certain elements of the safety device can be produced and / or arranged differently without departing from the scope of the invention.

Claims (10)

Safety device (100) for window (200) or door, intended to be mounted between a handle (210) and an opening and crossed by a square (230) of the handle, comprising a body (10) and a locking mechanism (30) making it possible to lock and unlock the rotation of the square, two push buttons (20) on two opposite sides of the body, each of said buttons actuating a locking member (32, 33), the locking mechanism having a locked position, which corresponds to a release of the buttons, in which the locking members are able to block the square in rotation so as to prevent the opening of the leaf, and an unlocked position, which corresponds to simultaneous pressing of the two buttons, in which the blocking members are spaced apart to free the rotation of the square, characterized in that the blocking members (32, 33) define a blocking volume (31) of section substantially identical to that of said square. Safety device according to claim 1, wherein each locking member comprises a rod (32) extending along a longitudinal axis of the body (10) and a U-shaped branch (33) extending perpendicular to said rod, the branches being arranged opposite so that, in the locked position, internal surfaces of said branches delimit the blocking volume blocking the rotation of the square (230) which passes through it. Safety device according to one of Claims 1 or 2, in which each locking member (32, 33) is slidably mounted in the body (10) along a longitudinal axis of said body, being fixed to a push button (20 ), and in which the push buttons (20) are each constrained by a spring (35). A safety device according to claim 3 in combination with claim 2, wherein each spring (35) is a compression spring disposed between the body (10) and a flange (321) of the rod (32) of the member. blocking fixed to the button (20) constrained by said spring, and in which the simultaneous pressing on the two buttons (20) produces a separation of the branches (33), one with respect to the other, freeing the square to rotate (230) which passes through said device. Safety device according to any one of the preceding claims, in which the body (10) has a front face (11a) and a rear face (11b) through which a central opening (111) suitable for receiving the square (230). Safety device according to any one of the preceding claims, in which the two buttons (20) are placed on an upper face (12a) and a lower face (12b) of the body (10). Safety device according to any one of the preceding claims, in which the body (10) comprises fixing means (112) to be mounted, interposed, between the handle (210), or a rosette (220) thereof. , and the window sash (200). A safety device according to any one of the preceding claims, further comprising an extension and coupling member (50) adapted to receive the square (230) at one end, and to be rotatably coupled in a housing (240) of opening it at the other end. Window (200) or door handle (210), characterized in that it comprises a safety device (100) according to one of the preceding claims. Window (200) characterized in that it comprises a handle (210) according to claim 9.

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