SI9700069A - Safety lock featuring blocking which allows unblocking only by inserting the key from the internal side of the door - Google Patents

Abstract

The safety lock featuring blocking which allows unblocking only by inserting the key from the internal side of the door solves the problem in such a way that locking and unlocking of doors is performed the same way as with standard cylindrical locks and that it blocks the operation of the cylindrical lock by a special blocking mechanism via the blocking lathe. A direct access to the blocking mechanism from the external side is impossible and its position can not be seen from the outside. The blocking mechanism is unblocked by a special key from the internal side of the door.

Description

SAFETY LOCK WITH A BLOCK THAT ALLOWS UNLOCKING ONLY WITH ENTERING THE KEY FROM THE INNER SIDE DOOR

The subject of the invention is a security lock with lock, which is unblocked by inserting a key into the locking cylinder insert only from the inside of the door.

The invention belongs to the international patent classification in E 05 B 13/08.

2.

A technical problem solved by the invention is the construction of a key, a master cylindrical insert and a locking insert so that it is not clear from the outside of the lock where the locking insert is installed and from the outside it is not possible to access the locking insert of the lock, which makes it difficult or difficult. prevents hacking or hacking in the most familiar ways (breaking the lock, turning, using the comb, etc.).

With the help of a locking insert with a special mechanism, we lock the main cylindrical insert, which is not capable of performing its function.

The locks known so far have an opening for entering the key into the cylinder insert at the outer entrance side of the lock or door. This shows the location of the lock and also an accessible location that allows the lock to break through with the help of a special burglary tool or turn. The main feature or. the disadvantage of such locks is that it allows very easy access with the burglary tool to the setting combination and that it can also be opened without a key.

The solution to prevent there is more difficulty in breaking such locks. The most common types or types of keys (with special grooves, magnetic codes, anti-rotation barriers, etc.) and steel cartridge reinforced cylinders are most common.

A common feature of these solutions is that the key is locked or locked. the cylindrical insert is still inserted from the outside of the door, which still allows for breaking in the above ways.

The problem that remains unsolved is how to prevent the burglar from directly accessing the cylindrical cartridge, destroying it and thereby accessing the locked space.

3.

According to the invention, the problem is solved by blocking the cylinder insert by means of a special locking cylinder, which is mounted on the inside of the door and into which the key is inserted only and only from the inside of the door, which means that it is unlocked only from the inside of the door, so that there is no direct access to the locking insert in the lock from the outside of the door. The position of the locking insert is not visible from the outside.

The invention will be described in the embodiment and in the drawings illustrating FIG. Fig. 1 shows the installation of a cylindrical and locking insert with an ordinary and special key (ID) for unblocking. 2 cylindrical (2A) and locking insert (2B, Fig. 3. locking lath (3A)

The key (ID) (FIG. 1) is designed to have a base body in the form of an elongated cylinder with a small cross section with respect to its length. The beard of the key is attached at one end of the body to the child and the key holder is arbitrarily shaped at the other end. A typical shape of the model is the beard of the key, which is basically the capital L. The shorter arm is attached to the key body, while the longer arm extends parallel to the body against the key holder, with the length of the longer arm at least twice shorter than the length of the key body. The longer leg of the beard is triangularly pointed in its vacancy. There is a groove on the outside of the limb that has a cross-section

4.

any geometric shape. On the outside of the body, this limb has a toothed end that ends in a shorter limb.

The key is protected by patent no. 9300376.

The locking strip (3A) (FIG. 3) has two semicircular recesses with a diameter equal to the diameter of the inner cylinders of the two cylindrical inserts. These openings allow the internal rotation of the inner rotating cylinder (2f) (FIG. 2) of the cylindrical cartridge and, freely, the longitudinal movement of the inner cylinder (2d) (Fig. 2) of the locking insert ONLY IN THE CASE OF THE LOCK BLOCK IN THE LOWER POSITION.

The locking insert, (2B), (FIG. 2), the housing (2c) and the inner cylinder (2d) are taxed to the width of the locking lath (3a). The inner cylinder (2d) of the locking insert can only be moved along its longitudinal axis, thus covering the taxed part on it or not with the taxed part on the locking case housing (2c). This movement is only possible if a key with the correct combination is inserted into the lock cylinder.

If the taxed work on the housing (2c) and the inner cylinder (2d) of the locking insert catches the locking strip (3A), (FIGURE 3), it moves freely up or down perpendicularly to the longitudinal axis of the rotating cylinder. However, if the taxed parts do not catch, the locking strip (3a) cannot be moved. The cylindrical insert (2A) (FIG. 2) also has a housing (2e) and an internal rotating cylinder (2f), (rotates about its longitudinal axis, cannot move along that axis as in the locking insert), taxed to the width of the locking insert. laths (3a). If the taxed work on the housing (2e) and the inner rotating cylinder (2f) of the cylindrical cartridge is caught by a semicircular opening (3b) on the locking strip 3A, the internal rotating cylinder (2f) rotates freely in the cylinder housing. However, if the taxed parts do not fit with the semicircular opening (3b) on the locking strip 3A, the internal rotating cylinder (2f) cannot rotate (remain blocked).

When leaving the apartment, we lock the apartment with a cylindrical insert as in standard inserts, and with a key (lD) unlock the locking cylinder, which is located under the cylindrical insert, (the locking bar is in the lower position, the internal rotating cylinder (2f) rotates freely because it is cut the parts on the housing (2e) and the rotating cylinder (2f) of the locking insert are caught by a semicircular opening (3b) on the locking lath (3A).

The key (ID) is pulled in, so that the notched part on the housing (2c) and the cylinder (2d) of the locking cartridge are also caught, so that the locking strip (3A) can now be pulled upwards through the lever. Now release the key, and now the taxed part on the housing (2c) and cylinder (2d) of the locking insert does NOT catch and the locking latch remains in the up position.

This means that in the case of the cylindrical insert, the notched part on the housing (2e) and the rotating cylinder (2f) of the locking cartridge do NOT fit with the semicircular opening (3b) on the locking lug 3A and the cylindrical cartridge is locked. In no case can it be unlocked as long as the locking strip is in the up position.

It is unblocked so that the key (ID) is reinserted into the locking insert (2B), pulled to itself, and the taxed part on the housing (2c) and cylinder (2d) of the locking insert is also caught by the locking strip (3A). the lower position. (the taxed work on the housing (2e) and the rotating cylinder (2f) of the locking insert opens and the locking lath can go into the down position. Now the semicircular apertures (3b) on locking latch 3A are caught by the taxed parts of the cylindrical insert and internal rotating

Claims (1)

PATENT APPLICATION 1. A SAFETY LOCK WITH ALLOWED LOCK UNBLOCKING ONLY WITH ENTERING THE KEY INSIDE THE DOOR characterized by the insertion of a special key (ID) from the inside of the door into the locking insert (2B) located under the cllindic insert (2A) from the inside of the door via the locking lath ( 3A), blocks the cylinder insert (2A).