RU2635302C1 - Lock cylinder mechanism with double secret mechanism - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: lock cylinder mechanism comprises a sleeve with a latch, and a rotor with a latch, and an embedded secrecy mechanism, arranged in the sleeve. Without a key or with an illegitimate key, the rotor rotates freely inside the sleeve rigidly fixed in the housing. With a legitimate key, both latches are triggered. The rotor is blocked in the sleeve, and the sleeve is unlocked. After this, a single rotation of the key, the rotor, and the sleeve inside the lock housing is possible. The secrecy mechanism is formed by flat pair arresters. The arresters have a projection for reading the key code and a groove cooperating with a latch. The groove position differs at different arresters inside one set. Such arrangement and configuration of the arresters provides a significant increase of secret combinations. The arresters are connected by springs in pairs, which increases the resistance to opening with skeleton keys. The rotating rotor complicates the drilling of the mechanism.

EFFECT: mechanism is suitable for installation in a standard cylinder housing, which extends the scope of the invention.

3 cl, 4 dwg

Description

The invention relates to locking devices, in particular to cylinder mechanisms that can be used in the construction of various locks, for example door (mortise, padlock, etc.).

The task to which the claimed invention is directed is to create a cylinder mechanism that is reliable in operation and has a high degree of secrecy, as well as to increase the degree of protection of the mechanism from drilling and power opening and opening with master keys.

The closest to the method of protecting the cylinder mechanism from drilling and tampering compared with the claimed solution is the cylinder lock mechanism according to the patent for utility model of the Russian Federation No. 122416, publication date 11/27/2012, characterized in that the end face of the cylinder facing the bolt drive is made in the form of a spline or multifaceted shaft, the crossbar drive mounted coaxially with the cylinder with the possibility of free rotation, at the end facing the cylinder side, has a spline or multifaceted shaft, matching in cross cross section with a shaft at the end of the cylinder, at the end of the code matching lock facing the bolt drive, a lead with a plug included in the annular groove of the clutch located on the splined or multifaceted shaft of the bolt drive with the possibility of longitudinal movement and connecting the bolt drive to the cylinder when the key code matches the lock code. If the key code and the lock code do not match, the clutch does not connect the crossbar drive to the cylinder, which rotates freely and rotation is not transmitted to the crossbar drive.

The disadvantage of this solution is the complexity of its implementation, because a key code storage device is required in order to be able to turn off the device for comparing the stored key code with the lock code by the protrusion of the code matching lock when installing the key. Also, due to the complex design and a large number of interacting elements, the overall reliability of the lock is reduced.

The closest in technical essence of the secret mechanism compared to the claimed solution is the cylinder lock mechanism according to the patent for the invention of the Russian Federation No. 2377759, publication date 11/20/2009, containing a cylinder installed in the housing with the possibility of rotation, having a channel for placing a key, located in the cylinder delays in the form of pins, each of which is installed with the ability to move perpendicular to the longitudinal axis of the cylinder by interacting its lateral protrusion with the walls of the wavy groove of the key for the extension of its end in the recesses of the housing, and a limiter for its movement, characterized in that the delay has a second lateral protrusion located on the opposite side from the first protrusion, and the delay itself is made flat.

A disadvantage of the known cylinder mechanism is a smaller number of secret combinations in comparison with the claimed invention due to a single delay setting. In addition, in the decision claimed by RF patent No. 2377759, the presence of a second protrusion on the delay serves to interact with the delay movement limiter, which increases the reliability of the mechanism, but does not affect the increase of secrecy.

In the present invention, FIG. 1, these problems are solved due to the fact that in a standard cylinder case there is a sleeve with a retainer which is stationary in the absence of a key or when using an illegitimate key, inside which a rotor with integrated security delays interconnected by springs is freely rotated in the absence of a key or when using an illegitimate key , and a second spring-loaded lock, which, when the key secret coincides, engages the rotor and the sleeve and interacts with the lock installed in the sleeve e, due to which a single rotation of the key, rotor and sleeve is possible to ensure the rotation of the leash and the implementation of the opening / closing of the lock. The free rotation of the rotor in the absence of a legitimate key greatly complicates the drilling of the secrecy mechanism.

Each delay of FIG. 4 may have a double secret provided by a protrusion that reads the key code and a groove interacting with the latch, and the position of the groove may differ at different delays within the same set. The presence of a key in the mechanism that matches the profile, but does not match at least one of the secrets, does not lead to the engagement of the rotor and the sleeve, therefore, the lock remains locked.

The delays are arranged in pairs and there is a spring between them. When reading the secret of the mechanism, the delays move independently of each other, which greatly complicates the opening of the mechanism with master keys. In one pair, delays with different secrets can be set, which at times increases the possible number of secret combinations.

The technical result provided by the given set of features is the creation of a simple in design, reliable in operation and having a high degree of secrecy cylinder mechanism of the lock.

The operation of the cylinder lock mechanism with a double secret mechanism is as follows:

When using a legitimate key: (Fig. 2)

1. delays 7 are moved relative to each other in such a way that the groove on the delays forms a “track” along the entire length of the rotor 3. Delays are moved depending on the secret on the key.

2. balls under the action of the springs push the latch 5 out of the groove of the housing, which, in turn, pushes the latch 4 into the formed “track” from the delay grooves.

3. through the lock 5, the rotor engages with the sleeve 2, as a result of which the key, the rotor and the sleeve rotate as a unit in the stationary case of the mechanism 1, providing the opening and locking of the lock.

The mechanism without a key or when using an illegitimate key: (Fig. 3)

- delays 7 under the action of a common spring in the absence of a key are maximally distant from each other. When using an illegitimate key, delays 7 are moved relative to each other, but the groove at the delays does not form a “track” necessary for the release of the latch 4;

- the latch 5 is located in the groove of the housing and remains engaged with the longitudinal groove of the sleeve 2;

- the latch 4 without the influence of spring-loaded delays does not extend beyond the diameter of the rotor with delays, the rotor can rotate in the mechanism in any direction without opening the lock, and the sleeve 2 remains stationary in the housing.

Claims (3)

1. Lock cylinder mechanism, characterized in that the sleeve is fixed in the standard cylinder case when there is no key or when an illegitimate key is used, a sleeve with a lock is located inside of which a rotor with integrated delays interconnected by springs is freely rotated when there is no key or when using an illegitimate key , and a second spring-loaded lock, which, when the key secret coincides, engages the rotor and the sleeve and interacts with the lock installed sleeve, whereby the single key is possible rotation of the rotor and the liner inside the housing of the cylinder mechanism to provide rotation of the leash and opening / closing the lock. 2. The cylinder lock mechanism according to claim 1, characterized in that each delay has a double secret provided by a protrusion that reads the key code and a groove interacting with the lock, and the position of the groove may differ at different delays within the same set. 3. The cylinder locking mechanism according to claim 1, characterized in that the delays are arranged in pairs, connected in pairs by springs and delays with different secrets can be set in one pair.

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