BG109542A - Safety lock with a protection disk - Google Patents

Abstract

The front end of the inner rotor (1) of the lock is shortened so that after assembly of the lock the faces of the two rotors, i.e. the outer rotor (2) and the inner rotor (1), are located in different planes shaping a cylindrical area that represents the seat of the protection disk. On the inner cylindrical surface of the outer rotor (2), in the space freed by the inner rotor (1), there is a semicircular channel. The protection disk (3) is mounted in front of the face of the inner rotor (1), so that its front end is in the same plane as the face of the outer rotor (2). The protection disk (3)represents a short cylinder with a semicircular channel shaped along its outer surface. After the protection disk (3) is put at the place freed by the inner rotor (1), the two semicircular channels form a common circular channel (4), in which a round spring ((5) is located preventing the protection disk (3) from dropping out. Thus, the protection disk (3) is movably attached to the two rotors (1 and 2) and can freely rotate in its seat.

Description

SECRET SWITCH WITH SAFETY DISC

Technical field

The invention relates to a security disk for securing locks against attempts to manipulate them and for unauthorized attempts to unlock them.

Background

In practice, known locks are known, which consist of two rotors - internal and external / L1 /, in which the encoder and lock pins are located in the radial coaxial openings. By inserting the real key © into the axial hole of the inner rotor of the lock, its pin displaces the coding pins and the internal rotor can rotate with the key and turn the locking tongue of the lock. The inner rotor is longer in length and is positioned relative to the outer rotor such that the front faces of the inner rotating rotor and the outer rotor are arranged in the same plane. When the key is not in the lock, the two rotors are fixed to each other by the coding and locking pins. This fixed attachment allows the lock to be manipulated, for example, by drilling a conventional drill into the inner rotor from the side of its forehead until the encoder pins are reached and the lock is removed and the door locked open.

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Technical nature

It is an object of the invention to provide a security lock with a security disk to prevent the lock from being manipulated, i. it should be secured by preventing the use of a non-original wrench or the drilling of the internal rotor, leading to damage to it and, consequently, the unlocking of the door locked with it.

The task is solved by positioning a single, free-rotating, protective disk in front of the inner rotor. For this purpose, the inner rotor is shortened from its front end so that after assembly of the lock, the fronts of the two rotors are already arranged in different planes and a cylindrical space is formed between the two rotors in their front, representing the bed of the protective ring. A semicircular groove is formed on the inner cylindrical surface of the outer rotor, in the space freed by the inner rotor.

The protection disc is mounted in front of the inner rotor head so that its front end is flush with the outer rotor head. The protective disc is a low cylinder, with a semicircular groove formed on its outer surface. After the protective disc is inserted into the space vacated by the inner rotor, the two semicircular grooves form a common circular groove in which a circular spring is held to keep the protective disc from falling out. In this way, the protective disc is fixed to the two rotors and can be rotated freely in its bed. When attempting to drill with a drill, this disc is rotated together with the drilling tool, thus preventing it from being drilled, and with it the drilling of the inner rotor to the encoder pins.

An opening with a profile corresponding to the profile of the feathers of the keys for these locks is formed through the protective disk. The profile of this opening corresponds to the profile of the axial groove in the inner rotor and does not allow a key to be inserted with a different transverse profile other than that provided in the protection disc. This further secures the lock.

The use of suitable material for the construction of the protective Odyssey further hinders the manipulation of the lock.

The advantages of the security locks provided with a security disc are many times increased security and prevent the possibility of breaking open door, door, safe, etc. in a simple and simple way with a simple drill.

Description of the attached figures

FIG. 1 - cross section of a security lock with a security disk

FIG. 2 - Partial section of a lock

FIG. 3 - cross section of a protective disk

FIG. 4 - Secret key and BB section of the key profile

Examples of specific implementation

The inner rotor 1 is shortened from its front end, so that after assembling the lock, the fronts of the two rotors, the outer 2 and the inner 1 are arranged in different planes and a cylindrical space is formed, representing the bed of the protective disk. A semicircular groove is formed on the inner cylindrical surface of the outer rotor 2 in the space freed by the inner rotor 1.

The protection disc 3 is mounted in front of the head of the inner rotor 1 so that its front end is flush with the face of the outer rotor 2. The protection disk 3 is a low cylinder, with a semicircular groove formed on its outer surface. After insertion of the protective disc 3 into the space vacated by the inner rotor 1, the two semicircular grooves form a common circular groove 4, which houses a circular spring 5, which holds the protective disc 3 from falling out. In this way, the protection disc 3 is movably attached to both rotors -1 and 2 and can rotate freely in its bed.

Claims (1)

Patent Claims 1. A secured lock with a locking disc, consisting of two rotors internally and externally co-located with one another, characterized in that the inner rotor (1) is shortened from its front end so that, after assembly, the ends of the two rotors, the outer (2) and the inner (1) are arranged in different planes, between which a cylindrical space is formed, representing the bed of the protective disk, and on the inner cylindrical surface of the outer rotor (2), in the space freed by the inner rotor / 1 / is a semicircular canal shaped cat o the protection disc / 3 / is mounted in front of the inner rotor head / 1 / so that its front end is flush with the outer rotor head / 2 / and the protective disk itself / 3 / is a low cylinder shaped by its outer outer surface is a semicircular groove, so that after insertion of the protective disc / 3 / into the space released by the inner rotor / 1 / the two semicircular grooves form a common circular groove / 4 / in which there is a circular spring / 5 / holding the protective disc / 3 / from falling out, and the protective disc / 3 / itself is movably attached to both rotors - / 1 / and / 2 / and can with rotates freely in his bed.