RU2122625C1 - Method of coding and decoding lock cylinders mechanism and lock cylinder mechanism - Google Patents

Abstract

FIELD: locking devices. SUBSTANCE: lock cylinder mechanism with plate catches includes body cylinder, key with code projections, plate catches and code plate. For coding, key is withdrawn from cylinder with subsequent thrust of ends of plate catches into cylinder and for possibility of their thrust into code plate in attempt of cylinder turning. Decoding is effected by introduction of key with lifting ends of plate catches by key code projections above surface of cylinder. In so doing, code plate is fixed on body and hole is made on it, and ends of catches in decoding are fixed by key code projections against respective holes. In this case, plate catches in lock coding and decoding are brought through code plate together with code projections of key and turning of cylinder. Lock cylinder mechanism with plate catches has body, cylinder, key with code projections. Plate catches are made in the form of springs located in gap between body and cylinder, across the cylinder and one of ends thrusting the cylinder. Located in gap between body and cylinder is code plate with holes to pass springs. The other end of springs is attached to cylinder, and plate itself is attached to body. Plate has additional cutouts to let key code projections pass through them. EFFECT: higher combination of lock. 2 cl, 5 dwg

Description

 The invention relates to the field of locking devices and can be used in locks to protect various objects.

 There is a method of encoding and decoding a cylindrical lock mechanism with plate delays, which includes a housing, a cylinder, a key with a secret part and plate delays, which consists in coding when the key is removed from the cylinder, during which the plate part is transferred to the secret part of the key in direction perpendicular to the cylinder, and the cylinder is inhibited from moving relative to the housing by introducing plate delays into engagement with the housing, and decoding by t when you enter the key into the cylinder, during which the secret part of the key plate delays are moved in the opposite direction and brake the cylinder by removing the plate delays from their engagement with the body.

 The known method of encoding and decoding is used in the "Cylinder lock mechanism" according to the application N 94-015487 / 12 (015089), IPC E 05 B 29/02, according to which there is a Decision VNIIGPE of 05.27.95 on the grant of a patent of the Russian Federation for an invention.

 The disadvantage of this method is that when it is implemented, an increase in the secrecy of the cylindrical mechanism of the lock can be achieved only by increasing its size, which is not always acceptable.

 There is another method of encoding and decoding a cylinder lock mechanism with plate delays, which includes a housing, a cylinder, a key with code ledges, plate delays and a code plate, which means that the key is removed from the cylinder for encoding, followed by the stop of the ends of the plate delays in the cylinder and with the possibility of their abutment in the code plate when trying to rotate the cylinder, and decoding is performed when the key is entered into the cylinder by lifting the ends of the plate delays with the code protrusions of the key n d the surface of the cylinder (see. U.S. Patent N 2674870, 1954).

 Since the proposed method uses all the essential features of the known method, then the known method of encoding and decoding a cylindrical lock mechanism is taken as the closest analogue to the proposed method.

 A cylinder-type lock mechanism with plate delays is known, comprising a housing, a cylinder, a key with code protrusions, plate delays that are made in the form of springs placed in the air gap between the housing and the cylinder across the cylinder, with one end of each of the springs abutting the cylinder (see U.S. Patent No. 4,047,409, 1974).

 The well-known cylinder lock mechanism with plate delays is taken as the closest analogue to the cylinder lock mechanism.

 The invention is aimed at increasing the secrecy of the cylinder mechanism of the lock without increasing its size.

 This is achieved by the fact that in the method of encoding and decoding a cylinder mechanism with plate delays, which includes a housing, a cylinder, a key with code protrusions, plate delays and a code plate, which means that for encoding, the key is removed from the cylinder, followed by the stop of the plate ends delays in the cylinder and with the possibility of their abutment in the code plate when trying to rotate the cylinder, and decoding is performed when the key is entered into the cylinder by lifting the ends of the plate delays with the code protrusions of the keys och above the surface of the cylinder, according to the invention, the code plate is fixed on the casing and holes are made in it, and the ends of the delays during decoding are fixed with the key protrusions of the key opposite the corresponding holes, while the plate delays when encoding and decoding the lock pass through the code plate together with the code protrusions of the key at turning the cylinder.

 And in the cylinder mechanism of the lock with plate delays, containing the body, cylinder, key with code ledges, plate delays made in the form of springs placed in the gap between the body and the cylinder across the cylinder and one of the ends that can abut against the cylinder, according to the invention in The gap between the housing and the cylinder contains a code plate, the plate has openings for the passage of springs through them, the second end of each of which is fixed to the cylinder, and the plate itself is fixed to the body, while the plate has up to additional cutouts for passing through them code ledges of the key.

 Figure 1 shows the cylinder mechanism of the lock, front view.

 Figure 2 is a section along aa of figure 1.

 Figure 3 is a section along BB of figure 2.

 Figure 4 - the same, after turning the cylinder with a key and the entry of plate delays in the code holes of the code plate.

 5 is a key to the cylinder mechanism of the lock.

 The drawings indicate: 1 - housing, 2 - cylinder with channel 3 for the key, a cavity is made in the cylinder and in the housing, increasing the thickness of the air gap between them to the required value. The block of plate delays is made in the form of a single part and includes a plate 4 placed along the cylinder and fastened with it, with which plate delays are made, made in the form of springs 5 of circular cross section, abutting their free ends against the cylinder. A code plate 6 is fastened to the body, which is located next to the free ends of the leaf springs 5 parallel to the channel 3 and has code holes 7 that are made at arbitrary distances from the cylinder for the plate delays to pass through them 5. The key is made in the form of a plate 8 with code ledges 9 , for the passage of which in the code plate 6 there are additional cutouts (holes) 10 in the shape of these protrusions.

 The proposed method of encoding and decoding a cylinder lock mechanism is implemented by the following actions (operations).

Coding
1. After turning the key of the cylinder 2 (carried out to close the lock), the cylinder and the code plate 6 are set in relation to each other so (Fig.3) so that it is possible to stop the code protrusions of the master key in the code plate 6 in case of an unsuccessful attempt to turn the cylinder to open the lock .

 2. The key is removed from the cylinder (from channel 3), while freeing plate delays from the code protrusions of the key.

 3. The ends of the plate delays 5 under the action of elastic forces are moved towards the cylinder and abut against the cylinder with the possibility of their abutment in the code plate 6 when trying to rotate the cylinder to open the lock.

Decoding
4. The key is inserted into cylinder 2.

 5. With the code protrusions 9 of the key, the ends of the plate delays 5 are raised to the level of their corresponding code holes 7.

 6. Provide the possibility of passage of the code ledges 9 of the key through the code plate 6 during subsequent rotation of the cylinder to open the lock.

 Thus, in the proposed method, two forms of coding are carried out: the first coding form is known, by stopping the ends of the plate delays in the code plate 6 and then raising them to the level of holes 7, the main form, and the second coding form is new, by holding the pick code code plate 6 and by passing the code protrusions of the key through the code plate through the holes 10 in it is an auxiliary form of coding, since its independent use is impossible for the reason that in the absence of plate delays cylinder 2 rotates freely without a key.

 In the initial position (figure 3), the lock is closed, the ends of the plate delays 5 are placed opposite the code plate 6 and, when trying to turn the cylinder, abut against this plate, preventing the lock from opening. An attempt to take an impression from the code plate 6 to make a master key on it is unsuccessful, because for this it is necessary to turn the cylinder in the direction of opening the lock, which is impossible.

 When you enter the key in the cylinder, it abuts against the end of the channel 3, and its code protrusions 9, in contact with the round surfaces of the springs 5, take places opposite the corresponding holes 7 and 10 of the code plate and at the same time raise the springs 5 to the levels of the corresponding holes 7 of the code plates 6. When the cylinder is turned with the key to the right, plate delays 5 enter their holes 7, and the code protrusions 9 of the key pass through the cutouts 10 of the code plate, thus opening the lock (see Fig. 4).

 When the cylinder is turned in the opposite direction, the lock closes, and the springs 5 occupy their original position opposite the code plate 6.

 The secrecy of the cylinder mechanism of the lock can be greatly increased by introducing a second code plate 6 and a second set of plate delays, in which case the code protrusions of the key will be placed on both sides thereof.

Claims (2)

 1. The method of encoding and decoding the cylinder mechanism of the lock with plate delays, which includes a housing, a cylinder, a key with code ledges, plate delays and a code plate, which means that for encoding the key is removed from the cylinder, followed by the stop of the ends of the plate delays in the cylinder and with the possibility of their abutment in the code plate when trying to rotate the cylinder, and decoding is performed when the key is entered into the cylinder by lifting the ends of the plate delays with the code protrusions of the key above the surface cylinder, characterized in that the code plate is fixed on the housing and holes are made in it, and the ends of the delays during decoding are fixed with the code protrusions of the key opposite the corresponding holes, while the plate delays when encoding and decoding the lock are passed through the code plate together with the code protrusions of the key when turning cylinder.  2. The cylinder lock mechanism with plate delays, comprising a housing, a cylinder, a key with code ledges, plate delays made in the form of springs placed in the gap between the housing and the cylinder across the cylinder and one of the ends having the ability to abut against the cylinder, characterized in that in the gap between the body and the cylinder there is a code plate, the plate has holes for the passage of springs through them, the second end of each of which is fixed to the cylinder, and the plate itself is fixed to the body, while the plate has t additional cutouts for passing through them code ledges of the key.

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