EP1191174B1 - Security device for shutter hooks - Google Patents

Abstract

The security device comprises a lever (6) and a spring (8) mounted on a support plate (1) positioned above the end (4a) of the hook (2) after its engagement on the angled branch (5a) in order to avoid its being lifted. The lever and spring are arranged to be temporarily manually retracted an order to release the end and to be automatically released under the effect of the introduction of the end.

Description

The invention relates to the technical sector of the devices for hooking of the opening leaves, in particular of the shutters.

It is known to use hooks capable of ensuring the maintenance in closed position including shutters, relative to a window with one or several leaves. Generally, these hooks come in the form a straight rod, one end of which forms a closed loop engaged with free articulation in a fixing peg at the level of a part window fixed. The other end of the hook is curved to be engaged in the holes presented by a rack fixed on the shutter in as such. Given the different holes in the rack, it is possible to obtain either the complete closing of the shutter or a half-opening of the latter.

We also know hooks of different design, generally, but not exclusively, used for windows with two hinged leaves opening and closing with respect to an upright fixed central. In this case, to maintain the closed position of each of the shutters corresponding to each of the leaves of the window, the hooks are mounted between the fixed central window pillar and each Shutters.

As before, one end of the hooks has a closed loop mounted with free articulation in a stud intended to be fixed, in this case, directly in the thickness of the flaps.

The other end of the hooks is arranged to be engaged on a squared branch presented by a support plate fixed on the upright fixed central window.

By US-A-4,929,004, we know a security system blocking in the open position of a door by means of a support plate having a plate mounted against a spring. The plate is retractable individually under the effect of the introduction of a rod in being shaped to block the latter in position commitment.

Patent DE-C-427 210 describes a device for picking in position open and in the closed position, with two hinged leaves on both sides of an opening.

The invention relates more particularly to a system of closing shutters where the hook is articulated to one of the ends, directly on the flap, while the other end is engaged on a squared branch of a support plate fixed on the fixed part of a window.

From this basic conception, the problem that to solve the invention is to avoid any untimely lifting of the end of the hook cooperating with the squared branch of the support plate. In indeed, one cannot exclude such a lifting after engagement of a blade or other thin member at the contiguous positioning of the edges of the shutters in the closed position. More generally, this risk of untimely lifting of the hook end at the plate support exists if one seeks to break open the shutters.

To solve such a problem, it was designed and developed according to the invention a device conforming to the features of claim 1.

To solve the problem of being able to act manually on the lever to release the corresponding end of the hook, the lever has, at one of its ends, a digital support part capable of allowing an angular tilting of said lever against the elastic member corresponding to the release of the end of the hook engaged on the squared branch.

Advantageously, the digital support part is constituted by a branch formed in the extension of the lever body and, in a way substantially perpendicular to the latter, being oriented towards outside.

The invention therefore finds an application in the case of a window with two leaves opening relative to a fixed central upright, a flap being mounted corresponding to each leaves.

• la figure 1 est une vue en perspective avant montage des principaux éléments du dispositif de sécurité selon l'invention ;
• la figure 2 est une vue en coupe longitudinale du dispositif en position de verrouillage des extrémités correspondantes des crochets ;
• la figure 3 est une vue en coupe considérée selon la ligne 3-3 de la figure 2 ;
• la figure 4 est une vue semblable à la figure 2 montrant le basculement du levier pour libérer l'extrémité du crochet ;
• la figure 5 est une vue à caractère schématique montrant un exemple de montage du dispositif au niveau d'une fenêtre présentant deux vantaux ouvrants par rapport à un montant central fixe.

The invention is set out below in more detail with the aid of the figures of the accompanying drawings in which:

• Figure 1 is a perspective view before assembly of the main elements of the safety device according to the invention;
• Figure 2 is a longitudinal sectional view of the device in the locking position of the corresponding ends of the hooks;
• Figure 3 is a sectional view taken along line 3-3 of Figure 2;
• Figure 4 is a view similar to Figure 2 showing the tilting of the lever to release the end of the hook;
• Figure 5 is a schematic view showing an example of mounting the device at a window with two opening leaves relative to a fixed central upright.

As indicated and as shown in FIG. 5, the invention finds an application in the case of a window having two opening leaves (V1) and (V2) and a fixed central upright (M). Next to each of the leaves (V1) and (V2) of the window, are mounted the leaves (B1) and (B2) of the shutter designated as a whole by (V).

The hook (C) is fixed in a way articulated, at one of its ends directly on the flap, while its other end cooperates with a support plate (1) fixed on the central upright (M) or other fixed part of the window. In a way known, the hook (C), made from a straight metal rod in particular (2), has one end in the form of a closed loop (2a) to receive, in a perfectly known manner, a peg (3) having, at its end (3a), any type of arrangement to be fixed in the shutter or other fan. The other end of the rod (2) receives a tip (4) having a head (4a) with a through opening (4a1) for its engagement, in the closed position, on a squared part (5a) of a branch (5) formed in the support plate (1). These provisions are perfectly known to a person skilled in the art.

The support plate (1) has two squared hooking branches (5), arranged side by side, forming a fork in order to each receive the hook corresponding to each of the leaves (B1) and (B2) of the shutter (V) of a window with two leaves (V1) and (V2) closing by compared to a central upright (M) (Figure 5).

The device security comprises means mounted on the support plate (1) and suitable for be positioned automatically above the head (4a) of the hook (2) after its engagement on the squared branch (5), in order to avoid any inadvertent and involuntary lifting of the head (4a) in position closing.

In the illustrated embodiment, the locking means and safety devices consist of a lever (6) mounted with capacity articulation in a yoke (1a) formed at the upper end in particular of the support plate (1). The lever (6) is articulated by means of a transverse axis (7) against an elastic return member in the form for example a pin spring (8).

The pin spring (8) is determined so as to position angularly the lever (6) above the hooking head (4a) after its engagement on the squared part of the branch (5) in order to prohibit all lifting of said head and consequently of the whole hook (2). The lever (6) has, at one of its ends, a digital support part (6a) able to allow angular tilting of the lever against the return spring (8) to release the head correspondingly (4a) of the hook (2) housed on the squared end (5a) of the branch (5).

This digital support part (6a) is for example constituted by a branch formed in the extension of the upper end of the lever (1) at its articulation, substantially perpendicularly. This digital support branch (6a) is oriented towards the outside to allow, under the effect of a digital support, the angular tilting of the lever (6) according to arrow (F) against the return spring (7).

The support plate (1) has, as shown and illustrated, two attachment branches (5) arranged side by side forming a fork, the end of the lever (6) has, opposite its articulation, a symmetrical support base (6b) able to cooperate simultaneously on the heads (4a) of the hooks (2) fixed in each of the leaves (B1) and (B2) of the flap (V).

The use of the safety device is particularly simple, safe, efficient and rational, and does not change the habits of the user to hooking the flaps. To ensure that the flaps are hooked, it suffice to naturally introduce the head (4a) of the hook (2) into the part square (5a) of the branch (5). Under the effect of the introduction of the head (4a), the lever (6) is automatically retracted according to the arrow (F) against of the return spring (8). After introduction of the head (4a), under the effect of rebound of the return spring (8), the lever (6) is positioned in particular by its base (6b), above the head (4a) of the hook (2) in the tangent position or near-tangency with the latter in order to prohibit any lifting of the whole hook (2).

To unlock the hook (s) (2), simply press on the operating branch (6a) of the lever (6) to retract it, according to the arrow (F), in order to release, in a corresponding manner, the head (4a) from the hook, therefore allowing manual lifting of the hook (2) to release the head (4a) from the squared part (5a) of the branch (5).

The fixing of the support plate (1) on the central upright (M) of the window or other fixed part of the latter, is carried out by any means known and appropriate. Similarly, all of the support plate (1) and the lever (6) can be executed in all dimensions and in all materials.

The advantages are apparent from the description, in particular one underlines and recalls the automatic locking obtained from the hook after introduction of its head at the branch (5) of the support plate avoiding any untimely lifting of the whole of said hook.

Claims (3)

1. Shutter-catch security device designed to be mounted between a fixed part of a window and the shutter itself, one end of each catch (2) pivoting on the said shutter, while the other end is constructed at (4a) for engaging on the end (5a) of a perpendicularly bent arm (5) of a support plate (1) of the security device, which plate is fixed to the said fixed part of the window, the said device comprising:

   a lever (6) mounted with the ability to pivot against an elastic return member (8), in a yoke (1a) forming part of the support plate (1);

   the lever (6) can be positioned over the end (4a) of each catch (2) after its engagement on the perpendicularly bent arm (5a) in order to prevent it being raised; and

   the lever (6) is designed to be retracted temporarily, both under a manual action, intended to release the said end (4a) when desired, and also automatically by the action of introducing the said end (4a);

      which device is characterized in that:

   the support plate (1) has two perpendicularly bent arms (5) situated side by side, forming a fork for the positioning of two separate catches (2), and the end of the lever (6) furthest from its pivot has a symmetrical stop (6b) acting simultaneously on the two catch ends (4a) engaged on the arms (5) of the fork; and

   each end (5a) of the perpendicularly bent arms (5) is designed to be able to be inserted into a through opening (4a1) in the end (4a) of the catch.
2. Device according to Claim 1, characterized in that one end of the lever (6) has a finger pressure part (6a) to enable an angular rotation of the said lever in opposition to the elastic member (8), corresponding to the release of the end (4a) of the catch engaged on the perpendicularly bent arm (5).
3. Device according to Claim 2, characterized in that the finger pressure part (6a) is an arm formed by a continuation of the body of the lever (6), roughly perpendicular to the latter and pointing outwards.

Images