TECHNICAL FIELD

The invention relates to a lock barrier which prevents locking mechanisms with spring bolts in doors from opening by an external intervention.

STATE OF THE ART

There is a bolt of a door lock which is snap-locked during closing the door by pulling. The locking mechanism with a spring bolt is a feature which should be in every door system. In order not to leave the doors open, the protruding spring bolts snap fit into the slot in the lock striker on the door frame during closing the door by pulling. Inside the doors there is a door handle which opens the spring lock bolt (retracts the bolt by snapping its spring). Generally there is no door handle outside of the door, which intervenes in the spring bolt. When the door is closed (is pulled), the spring bolt is closed by snapping fit into the slot in the lock striker. A lock key is necessary in order to open the door from the outside. However the spring bolt mechanisms on the door locks can be easily opened by an external intervention. The spring bolts of the door locks can be easily opened with thin steel wires and thin flexible sheets. The closed and unlocked door can be easily opened with such objects, for example a bank card. In order to eliminate the drawback of being opened by an external intervention in the spring bolt mechanisms on the door locks, the complex mechanisms should be applied in locking mechanisms. As an example for these, while the door is closed, a further protruding assembly which extends outside from the inside of the lock prevents the spring bolt from opening by snapping with an external intervention. Such locks are exclusively designed for this purpose and these are much more expensive than the standard lock due to their complex structure. Furthermore the present lock must be disassembled and a new lock which is manufactured with a special assembly of this kind, etc. must be assembled. DESCRIPTION OF THE INVENTION

The present invention relates to a protection barrier for a door lock bolt which is developed for eliminating the above-mentioned drawbacks and providing new advantages to the related technical field.

The object of the invention is to easily mount to the front of the spring lock bolt and to protect the lock bolt form the external interventions, without changing the present door and locking mechanisms.

The other feature of the invention is to be easily applied into the variable apertures between the door and the door frame (door trim). There are door apertures between the door and the door trim in varying size between 2.5 mm and 8 mm. However the subject of the application is that the invention can be easily applied to every kind of door apertures due to its interlocking and flexible tabs, regardless of the door gap.

Figures

The embodiments of the present invention, briefly summarized above and discussed in detail below, can be understood by reference to the exemplary embodiments of the invention described in the accompanying drawings. However it should be noted that the accompanying drawings merely illustrate typical embodiments of the present invention and is not intended to limit its scope, since the invention may therefore allow other equally effective embodiments.

Figure 1 is the plan view of the channeled body in the inventive barrier.

Figure 2 is the perspective view of the channeled body in the inventive barrier. Figure 3 is the plan view of the tab body in the inventive barrier.

Figure 4 is the perspective view of the tab body in the inventive barrier. Figure 3 is the side view of the merging tab body and channeled body in the inventive barrier.

Identical reference numbers are used, where possible, in order to facilitate understanding and to identify identical elements that are common in the figures. The figures are not drawn to scale and can be simplified for clarity. It is contemplated that the elements and features of an application may be usefully incorporated into other applications without further explanation.

Description of the Details in Figures

The equivalents of the reference numbers shown in the figures are given below.

1- Channeled body

2- Channel

3- Tab body

4- Tab

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the preferred alternatives of the lock bolt barrier mechanism of the invention are described so as to provide a better understanding of the subject and to cause no limiting effect.

The invention is a barrier which protects the door lock bolt from the external interventions by merging the channeled body of Figures 1 and 2 and the tab body of Figures 3 and 4 as can be seen in Figure 5.

In figure 1 and Figure 2, a channeled body (1) preferably made of rigid plastic is shown, one side of which is fastened to the door or door trim and is flat, and the other side of which has channels (3) into which the tabs (4) of the tab body (2) in the striker enter. This channeled body (1) is fastened to the present lock bolt from its flat side or its striker is fastened to the door trim by adhesive, doublesided tape, screw, silicon and similar methods.

In figure 3 and Figure 4, a tab body is shown, which is preferably made of flexible and durable metal and on which flexible tabs (4) are located. These tabs (4) are formed so that one-piece tab body is cut and opened by molding, laser, pressurized water and similar method. The flexible tabs (4) on the tab body (2) enter into the channels (2) on the channeled body (1 ) in the striker when the door is closed. Also the tab body (2), like the channeled body (1), is fastened to the present lock bolt from its flat side or its striker is fastened to the door trim by adhesive, double-sided tape, silicon, screw and similar methods.

As is shown in Figure 5, in the invention the channeled body (1 ) and the tab body (2) are mutually placed on the side of the lock bolt which faces outwardly. The channeled body (1 ) and the tab body (2) can be used only interchangeably on the doors opened inward and outward. The channeled body (1 ) and the tab body (2) are placed so that the open flanks of the tabs are on the outside of the door and the intermediate gap corresponds to the lock bolt. The channeled body (1 ) and the tab body (2) placed in this way come across when the door is closed, and the tabs (4) enters into the channels (2). When the lock bolt configured in this way is intended to be intervened by wire, card, plate and such flexible materials from the outside, this material is stopped by the tabs and prevented from reaching the bolt.