EP2746496B1 - Securing device for a window or door handle - Google Patents

Description

The invention relates to a safety device for a window or door handle against unauthorized operation according to the preamble of claim 1. It has become common today to offer lockable window and door handles with an integrated cylinder lock as burglary protection and / or child safety. However, if the existing window or door handle should not or cannot be exchanged for a lockable one, additional locking devices must be used.

For example, the CH 689 871 A5 a safety device of a reinforced door of shelters, in which a removable cover and the handle itself is penetrated by a locking part, which can then be locked outside on the cover with a separate lock. The execution is massive and relatively complex due to its intended use for armored doors. For living room doors or windows, their use is impractical because of the at least three separate parts, namely the cover hood, closure part and armored lock, which lie around as individual parts when not in use.

The DE 195 17 833 C1 teaches how to secure a window or door handle against unauthorized use by means of two cover caps, which can be adjusted and fixed to the handle height using locking screws and, if desired, locked with a cylinder lock. The adjustment and fixation of this device is also complex. In addition, there are again several parts that have to be accommodated when not in use.

In the US PS 5,303,971 a safety cover for locking a loading flap is disclosed which engages behind the operating handle for the loading flap with a lock bolt. The lower end of the cover must first be hooked into a special recess in the recessed grip of the loading flap to secure it there. The cover is relatively large and is not safe to use.

GB 2,484,364 shows a cover for a door handle with a hollow and lockable interior for a rotatable door handle. The door handle is guided through an opening in the cover and the opening is then partially covered by a locking mechanism so that the door handle cannot leave the closed cover. The cover can be rotated around the door handle so that no force in the direction of rotation of the rotatable door handle can be transmitted to the cover via the cover. To operate the door handle, the cover with the opening must be aligned with the door handle in order to be able to remove it from the door handle and then to be able to operate the door handle.

Another safety device for a window or door handle is from the DE 94 04 243 U known. The device has a cover which, if desired, can also be attached rotated by 180 °.

In practice, the need for handle securing devices has been shown in particular for so-called flat handles, which are used, for example, in folding systems, where the folding of the individual elements and their small spacing in the folded state does not allow window or door handles of normal height. Locks can therefore usually not be used directly in flat handles, as is the case with lockable window or door handles. To secure such handles, the state of the art has not yet offered a solution that does not only fulfills the security purpose, but is also as restrained as possible and easy to use.

The invention is therefore based on the object of creating a safety device for window or door handles which prevents unauthorized operation in a simple manner and can be easily stowed away when not in use. This object is achieved by a safety device with the features of claim 1.

By designing the cover with at least two locking elements that interact with corresponding counterparts on the handle, handle fitting and / or window or door, and by designing at least one of these locking elements as a bolt of a lock integrated into the cover, the safety device only requires a single removable one Part, namely the cover, which can then be designed accordingly slim and flat. Because the lock, in particular a cylinder lock, is received in the cover, the securing device does not impair the requirements for the small depth of the handle in folding systems, since the cover including the lock is removed when such a system is opened and folded.

The counterparts are arranged opposite to the two locking elements on the window or door and functionally identical, ie functionally symmetrically shaped, so that the cover can be fitted rotated by 180 ° if desired. If the lock is on one side of the cover, you can then freely choose whether the lock should be on the bottom or on the top.

According to the invention, at least one of the counterparts to the locking elements is a locking piece that can be or is fixedly connected to the window or door. This causes a solid attachment of the safety device. A preferably fixed connection between the lock and the cover ensures that no loose individual parts are lying around when the safety device is not in use.

In a further preferred embodiment, the bolt of the lock and / or its counterpart can have a ramp and at least one of these two parts can be spring-biased towards the other so that it can retreat against the spring pressure. This makes it possible to put the cover on even when the cylinder lock is closed, since the bolt of the lock or its counterpart is then pushed back by the run-up bevel and at the end of the run-up bevel, the spring tension jumps out again for a firm connection. The lock then only has to be actively unlocked to open the safety device.

Due to the simple embodiment in which the essential elements are integrated in the cover, a slim and shapely construction can be realized, which does not allow a used safety device according to the invention to stand out. Nevertheless, the system is safe and easy to use.

Fig. 1

Die Sicherungsvorrichtung mit abgenommener Abdeckung a) in Perspektive und b) im Schnitt ohne Abdeckung,

Fig. 2

den Gegenstand aus Fig. 1 beim Aufsetzen der Abdeckung,

Fig. 3

den Gegenstand aus den vorigen Figuren mit aufgesetzter Abdeckung, noch unverriegelt,

Fig. 4

den Gegenstand aus Fig. 3, nun verriegelt,

Fig. 5

den Gegenstand aus Fig. 4 mit umgedreht aufgesetzter Abdeckung,

Fig. 6

den Gegenstand aus Fig. 4 mit abgezogenem Schlüssel und

Fig. 7

den Gegenstand aus Fig. 5 mit abgezogenem Schlüssel.

Further advantages and details emerge from the subclaims and an exemplary embodiment of the invention shown in the drawings, which is described below; show it:

Fig. 1

The safety device with the cover removed a) in perspective and b) in section without cover,

Fig. 2

the item Fig. 1 when putting on the cover,

Fig. 3

the object from the previous figures with the cover on, still unlocked,

Fig. 4

the item Fig. 3 , now locked,

Fig. 5

the item Fig. 4 with the cover turned upside down,

Fig. 6

the item Fig. 4 with key removed and

Fig. 7

the item Fig. 5 with the key removed.

In the Fig. 1 The situation shown shows a flat handle 1 which is mounted in a handle plate 2 on a frame element or a window or a door 3. Below the handle 1, a counterpart is screwed onto the frame element 3 as a locking piece 4, which is connected to the locking elements shown in the following figures and belonging to the securing device in FIG Fig. 1 Not yet attached cover 6 cooperates. The upper end of the handle 1 serves as a further counterpart 5, which in any case has a bevel that can be grasped from behind in order to enable the handle to be tilted. The cover 6 contains a cylinder lock 7 which can be operated with a key 8.

Fig. 2 shows the situation in which the cover 6 is slipped over the flat handle 1. A locking element 9, which is arranged on the inside at the upper end of the cover 6, engages behind with a projection that passes through the upper end of the Handle 1 formed counterpart 5. The lock 7 is open, ie its bolt, not visible here, is in the "open" or "retracted" position. As a result, the cover 6 can also be placed flat on the frame element 3 at the lower end, as Fig. 3 shows.

Fig. 4 shows how the now visible bolt 10 of the lock 7 by 180 ° rotation of the key 8 from the "open" or "retracted" position Fig. 3 in the "closed" or "extended" position in Fig. 4 emotional. The bolt represents the second locking element 10 and engages behind a projection of the counterpart 4. If the bolt 10 has a run-up bevel 11 as shown and (not visible here) is spring-loaded movable in the direction of the arrow 12, the cover 6 can also be assembled at closed lock 7 take place. Then the previously extended bolt 10 pushes itself when the cover 6 is slipped over the flat handle 1 on contact with the counterpart 4 automatically in the "open" or "retracted" position and jumps back into the "closed" or "closed" position in the end position by spring assistance . "extended" as in Fig. 4 shown back.

Fig. 5 shows that the cover 6 can be put on rotated by 180 ° if desired, since here the two counterparts 4, 5 are arranged opposite one another on the frame element 3 and - although not identically, shaped by corresponding projections or undercuts - functionally identical. Thus, the position of the cover 6 with "lock below" or "lock above" can be freely selected, for example depending on the size of the person who puts on the cover, for maximum convenience.

Just for the sake of completeness they show Fig. 6 and 7th the security device with the key removed to fulfill the function of access protection or an operating lock.

In the mounting variant of the cover of the Fig. 5 and 7th could the lower locking element in an alternative, not shown embodiment also be formed by a projection of the cover 6 (instead of the element 9), which engages in a counterpart designed as a recess in the window, the door or the frame profile 3.

The securing device according to the invention is easy to handle and can also be retrofitted due to the possibility of subsequently attaching the counterpart 4 to the frame element 3. Should the handle 1 be designed differently at the upper end and thus not be able to form the counterpart 5, this can also be formed, for example, by the side and upper flanks of the handle plate or handle fitting 2, which can interact with the inner walls of the cover 6 if they are precisely designed and thereby prevent twisting of the cover together with the handle 1.

Claims (3)

1. Securing device for securing a window or door handle (1) against unauthorized actuation, comprising a cover (6), which engages over the handle (1), and a lock (7), by which the cover (6) can be removably fastened, wherein the cover (6) has at least two arresting elements (9, 10) which interact with corresponding counterparts (4, 5) on the handle (1), handle fitting (2) and/or window (3) or door (3), and one of the arresting elements (9, 10) is a bolt (19) of the lock (7), and the counterparts (4, 5) are arranged opposite the arresting elements (9, 10) and are of functionally identical shape such that the cover can also be placed on in a manner rotated through 180°, wherein at least one of the counterparts (4, 5) is a locking piece (4) which is or can be fixedly connected to the window (3) or door (3).
2. Securing device according to claim 1, characterized in that the lock (7) is fixedly connected to the cover (6).
3. Securing device according to any one of the preceding claims, characterized in that the lock bolt (10) and/or the associated counterpart (4, 5) has/have a run-on slope (11), and at least one of the two parts (10, 4, 5) is movable in a spring-loaded manner.

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