RU2393100C2 - Lock - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to locks for protection of premises and may be used in means of transport as antitheft device. Lock is provided with key for its opening and consists of body, drum and grip. Body and drum are provided with holes with pins installed in them, arranged coaxially along circumference along axis to produce lock mechanism. Drum is installed into body and enables vertical axis rotation. Grip is rigidly installed in body, slots are provided in grip and drum for shaft. Each pin consists of at least three parts. One part is stepped, interacting with key, other is composite from cylinder and rod with the possibility of fixed length variation, back pins are cylindrical. Thread is cut in holes of body and drum, and on the second and third parts of pins there is thread arranged for interaction with threaded surfaces on holes of body and drum. Diametre of holes thread arranged in body of lock and drum is more than diametre of thread arranged on pins.

EFFECT: invention makes it possible to eliminate chances of lock jamming with preservation of its security properties.

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Description

The invention relates to locks for the protection of premises and can be used in vehicles as an anti-theft device as a shaft stopper.

Known steering wheel shaft lock according to RF patent No. 2228863 (publ. 05/20/2004), consisting of a cylinder covering a shaft whose axis is perpendicular to the longitudinal axis of the shaft, a stopper installed in the groove of the cylinder and fixed by a locking mechanism with a key to unlock this mechanism. The stopper consists of three parts: the housing, the drum and the gripper, and the housing and the drum are equipped with pins located coaxially around the circumference along the axis, the gripper is rigidly mounted in the housing, and cutouts under the steering shaft are made in it and in the drum.

The disadvantage of the above invention is that the spring-loaded locking pins allow them to act on the master keys and find their code position, since the spring together with the master key makes it possible to move the pin in opposite directions in order to unlock the secret mechanism.

Known shaft stopper with a locking mechanism according to the patent of the Russian Federation No. 2281213 (publ. 08/10/2006), equipped with a key made in the form of a plate with recesses for unlocking this mechanism. The shaft stop consists of a housing, a drum and a gripper. The housing and the drum are provided with pins located coaxially around the circumference along the axis. The drum pins are spring loaded to form a locking mechanism. The drum is mounted in the housing with the possibility of rotation around its axis, the grip is rigidly installed in the housing, cuts under the shaft are made in the grip and in the drum. A central cylindrical hole is made in the drum, into which a spring-loaded step piston is installed, which interacts with the pins of the end and cylindrical parts. Each pin consists of at least three parts: one part is a stepped one that interacts with the key, the other is a composite of a cylinder and a rod with the possibility of a fixed change in length, and the last one interacts with a piston.

Unlike the previous analogue, the execution in the drum of a central cylindrical hole in which a spring-loaded step piston is installed, interacting with the pins of the end and cylindrical parts, can significantly increase the resistance of the shaft locking mechanism of the shaft lock to criminal breaking. When acting on a separate front step pin with a master key, the force will be transmitted through the next two pins to the piston. The piston from this action and spring force will begin to rotate in a plane passing through the axis of its rotation, as a result of which its cylindrical part will begin to clamp the last part of the pin. The movement of all three parts of the pins located in the hole will be fixed. Moreover, the stronger the force, the stronger the fixation. When the exposure ceases under the action of the spring, the pins return to their original position. If the spring force is not enough, then unlocking occurs when you enter the key, which acts immediately on at least two or three front step pins. With this effect, the piston wedges.

However, the described construction leaves it possible to open the lock by acting on the pins with master keys.

Also known is a shaft stopper with a locking mechanism according to RF patent No. 2324610 (publ. 05/20/2008), in which, to exclude the criminal opening of the secret part, the rear pins are made stepwise, except for one pin that is cylindrical, and the stepped pins are installed with a smaller diameter in the drum, and large in the case, and part of the stepped pin with a smaller diameter of the pins is located in the case and in the drum. To open such a lock with master keys, as certification has shown, is almost impossible. In most cases, the locking mechanism is jammed, and with a rough effect on the pins - complete blocking.

This steering wheel shaft lock is closest to the proposed Schlepper lock in terms of resistance to criminal tampering - in functionality.

The disadvantage of this design is the high complexity of manufacturing, namely the high accuracy of manufacturing the parts of the lock, in particular the piston and the interacting rear step pins, and the drum. If these conditions are not met, then jamming of the lock mechanism and its complete blocking are possible. In working condition, it is impossible to remove the locking mechanism from the wedge. When installing such a stopper on a car in the form of an anti-theft device, this leads to extremely undesirable consequences and inconvenience, since unlocking the lock mechanism is possible only in one case - by cutting it off.

The proposed invention solves the problem of eliminating the possibility of jamming the castle while maintaining its protective properties no worse than the above analogue.

To achieve this technical result, in the Schlepper lock, equipped with a key for unlocking and consisting of a housing, a drum and a grip, the housing and the drum are provided with holes with pins installed therein, arranged coaxially around a circle along an axis with the possibility of rotation around its axis, the grip is rigidly installed in Cutouts for the shaft are made in the housing, in the grip and in the drum, each pin consists of at least three parts: one part is stepped, interacting with the key, the other is composed of a cylinder and a rod with the possibility of fixation length change, while in the holes of the lock case and in the holes of the drum a thread is cut, the rear pins are cylindrical, and on the middle and rear pins there is a thread for interaction with threaded surfaces in the holes of the case and the drum, the thread diameter of the holes made in the lock case and a drum larger than the diameter of the thread made on the middle and rear pins.

Such a design during criminal exposure excludes the possibility of controlled movement of the pins, since their threaded surface interacts with the threaded surface of the holes in the lock case and in the drum.

Consider this effect in more detail:

1. For criminal opening of the lock with master keys, it is necessary to move each of the pins to the code position.

2. This is possible when determining the transition of the middle and rear pins of the plane of contact of the lock housing and the drum.

3. To determine the transition, it is necessary to create a torque so that the openings of the lock case relative to the holes of the drum shift due to their play, as a result of which they become "stepwise". This step is "tapped", which allows you to determine the code position of the pins.

4. In the proposed design of the lock in the holes of the lock case, the drum, as well as on the outer cylindrical part of the middle pins and on the rear pins, a thread is applied. Moreover, the pins are cylindrical.

5. When creating the torque necessary to determine the code position of the pins, the latter are blocked due to the interaction of the threaded surfaces of the pins with the threaded holes of the lock housing and the drum. Controlled movement of the pins will not be possible. As the tests showed, such a locking mechanism becomes too "noisy" and these "noises" do not allow it to "listen". It is almost impossible to open such a lock with master keys, since controlled movement of the pins is excluded.

6. When you open the lock with a key, there is no torque when entering the latter, so the pins easily move to the code position. After entering the key, unlocking is performed - rotation of the lock housing relative to the drum.

The proposed Schlepper castle is illustrated by the drawings shown in figures 1-8.

Figure 1 - shows a front view of the castle;

figure 2 is a General view of the castle in section AA;

figure 3 is a General view of the castle in section BB;

figure 4 is a view of the inner groove with a locking pin, type B;

figure 5 is a view of a stepped pin, view G;

Fig.6 is a view of a spring-loaded cylindrical pin, view D;

Fig.7 is a General view of the castle without a crown (shown groove capture);

on Fig is a General view of the castle in a perspective view.

Schlepper’s castle (Fig.2-3) is equipped with a key 1, made in the form of a cylinder with recesses for unlocking the locking mechanism. It consists of a housing 2, in the holes of which a thread is cut, a drum 3, in which threaded holes are also made, and a gripper 4. The housing 2 and the drum 3 are provided with pins 5,6-7,8 (Fig. 2), located coaxially around the circumference along the axis of the housing 2 and the drum 3. The drum 3 is installed in the housing 2 and interacts with the cylindrical part of the housing 2 with the possibility of rotation around its axis, the grip 4 has two grooves (Fig.7) for rigid installation in the housing 2 using a threaded connection and step the fixing pins 9 interacting with the threaded conic they capture the pin 10. At 4 and body 2 is wearing the crown 11 is also rigidly fixed stepped locking pins 9. This circuit 4, and fixing the catch crown 11 makes the construction of the stopper shaft substantially monolithic. And in the grip 4, and in the drum 3, cuts are made for the shaft 12. In each hole of the drum 3 and the housing 2 there are three pins: the front step 5, the middle one with a thread on the outer surface of the cylinder 6-7 and the rear cylindrical with a thread 8. One from the rear pins (any) interacts with the spring 13. The front step pins 5 interact with the key 1. The adjustable pins 6-7 interact with the front step 5 and the rear cylindrical 8 pins and form a lock secret mechanism. The diameters of the threaded holes in the lock case 2 and in the drum 3 are equal to and larger than the diameter of the thread made on the middle 6-7 and rear cylindrical pins 8. The front step pins 5 can freely move in the threaded holes of the lock case 2.

The grip 4 has such a cutout that allows the housing 2, being mounted on the shaft 12, together with the grip 4 to rotate around its axis when unlocking with the key 1 of the housing 2 relative to the drum 3 to thirty degrees to the right or left. In addition (Fig. 7) in the gripper 4 there are two grooves located opposite each other in diameter (Fig. 3) under the stepped fixing pins 9.

Schlepper’s castle works as follows. The lock is in the “open” state, which means that the cutout of the drum 3 is aligned with the cutout of the gripper 4 so that the lock can be freely put on the shaft 12 and removed from it. In the open state, the lock is put on the shaft 12 and rotates by hand until the grip 4 stops on the shaft 12. This leads to the alignment of the coaxial holes with the pins 5,6-7 of the casing 2 and the pins 8 of the drum 3, the pins 8 under gravity, and the spring-loaded cylindrical the pin (one of them) under the action of the spring 13 is moved all the way, while locking the lock in the "closed" position. The installation of the lock is completed. In this position, the lock is securely fixed to the shaft 12.

The lock is unlocked in the reverse order. The key 1 is inserted on the end of the housing 2 and moves the front step pins 5, the latter acting on the pins 6-7, and they, in turn, on the rear cylindrical pins 8, and all together move into the plane of the connector between the housing 2 and the drum 3 until the grip 4 stops in the shaft 12. Next, the key 1 is removed from the end of the housing 2 and is removed. With further installation of the lock on the shaft 12, key 1 is not required, it is only necessary when unlocking the lock.

The technical effect of the application of the proposed Schlapper castle design is an absolutely effective system for protecting the castle mechanism from criminal opening and gross physical impact in comparison with similar devices.

The presence of a threaded surface on the middle, cylindrical rear pins and in the holes of the lock housing and the drum, as well as the presence of one spring-loaded pin practically exclude the possibility of criminal opening of the lock.

Claims (1)

A lock equipped with a key for unlocking and consisting of a housing, a drum and a gripper; the housing and the drum are provided with holes with pins installed in them, located coaxially around the circumference along the axis with the formation of the locking mechanism, the drum being mounted in the housing with the possibility of rotation around its axis, the grip is rigidly mounted in the housing, cuts for the shaft are made in the grip and in the drum, each pin consists of at least three parts: one part is stepped, interacting with the key, the other is a component of a cylinder and a rod with the possibility of a fixed change in length, rear pins, cylindrical, excellent in that the threads are cut in the holes of the housing and the holes of the drum, and threads are made on the second and third parts of the pins to interact with threaded surfaces in the holes of the housing and the drum, the diameter of the threads of the holes made in the lock housing and in the drum being larger than the diameter of the thread, made on pins.

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