RU1810450C - Lock - Google Patents

Abstract

Use: for locking doors. SUMMARY OF THE INVENTION: a lock comprises a body with a keyhole, a spring-loaded deadbolt with oblique teeth, and a shutter in the form of a helical rack and a pressure key with inclined barrels. The lock is equipped with an additional key with inclined barbs, an additional keyhole made in the housing. In the damper there is an additional coiled portion for interacting with the inclined beards of the additional key and two through transverse grooves made at a distance equal to the distance between the keyholes and having sections corresponding to the cross sections of the pressure wrenches. There is a ledge in the flap, and in the main key, a groove corresponding to this ledge. 5 ill.

Description

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The invention relates to hardware products.

The purpose of the invention is to increase the secrecy and reliability of the lock.

Fig. 1 shows a lock in a locked state; in Fig.2 - lock at the moment of unlocking (at the end of the interaction of the second pressure key with a shutter); Fig. 3 shows the unlocked state of the lock; figure 4 is a General view of the castle; figure 5 - interaction of lips; PA in the first section of the oblique teeth of the valve and the first pressure wrench.

The lock comprises a housing 1 with a keyhole 2, a spring-loaded deadbolt 3 with oblique teeth 4 located in the housing, and a shutter 5 in the form of a helical rack mounted between the deadbolt and the keyhole. and a key wrench 6 with inclined beards 7 for interacting with the teeth of the bolt and the shutter. The lock is equipped with an additional key 8 with inclined

barbs. An additional keyhole 9 is made in the housing; it is located behind the main bolt during opening of the deadbolt. The damper is provided with an additional helical section 10 for interacting with the inclined beards of the additional pressure wrench and Two through transverse grooves 11 and 12, made between two oblique sections at a distance equal to the distance between the keyholes and having sections corresponding to the cross section of the pressure keys 6 and 8.

A step 13 is made in the flap between the main portion of the oblique teeth and the main through-threaded protrusion, and a groove corresponding to this step is made in the main push key, 14, The height of the section 15 between the transverse grooves 11 and 12 of the flap

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ki 5 above the upper edge 16 of the main keyhole 2.

The castle operates as follows.

To open the lock, a second key 8 is inserted into the keyhole 9 of the housing 1 (Fig. 1). Its slanting barbs mesh with the oblique teeth of the portion 10 of the shutter 5 and bias it. When the key 8 is inserted as far as it will go, the through holes 11 and 12 are installed, respectively, opposite the keyholes 2 and 9, a longitudinal gap A being formed between the bolt 3 and the shutter 5 (Fig. 2). At this moment, the key key b is inserted into the keyhole 1, and the key 8 is removed from the keyhole 9. In this case, the inclined beards 7 of the key b will not interact with the oblique teeth of the first portion of the shutter 5, since the latter is spring-loaded.

With further movement of the pressure key 6, its beards 7 interact with the oblique teeth 4 of the bolt 3, moving it in the unlocking directions and decreasing the longitudinal clearance A. When choosing the clearances, A, the bolt 3 will begin to push the bolt in the open direction, the small tooth of the first section , and the L15TGki 5 will be interoperable with mcgtGorodki 7 key 6.

For a better entry of the oblique teeth of the first portion of the shutter 5 into the beards 7 of the key b, a step 13 is made in the shutter 5, and in the key 6, a groove 14 corresponding to this step (Fig. 5). .

When the pushbutton b is moved all the way to the end, the owl 3 is recessed into the housing, unlocking the lock (Fig. 3).

Locking is carried out by removing the pressure key 6 from the keyhole 2.

Since the tooth 4 of the bolt 3 and the main portion of the oblique teeth of the shutter 5 interact with the same brrs with the key 7 of the key 6, they are identical.

From the inside, the lock is controlled by a handle fixed to the deadbolt, which is also a limiter of the deadbolt travel.

Unauthorized unlocking of the lock through the keyhole 2 is difficult, since the keyhole 2 is blocked by the portion 15 of the shutter 5, and the penetration of a foreign object through the keyhole 9 does not produce results, since there are no oblique teeth on the deadbolt against it.

Claims (2)

1. A lock comprising a case with a keyhole, a spring bolt located in the housing, mounted parallel to the bolt with slanting teeth, and a push key with slanted barrels for interacting with the teeth of the rack, characterized in that, in order to increase secrecy, it is provided with an additional a key with slanting barbs, in the casing of the right-wing protector and ЕПГГГГ7Н “ГГГТГГТГЕ зам key lock” Located on the base of the bolt during opening, then equipped with oblique teeth, corresponding to the teeth of the slats for interacting with the inclined barrels of the main pressure wrench, and the rail is installed between the bolt and the wall of the body with the wells to form a damper and is provided with an additional helical section for interacting with the inclined barrels of the additional pressure wrench and two cross-sectional grooves made with sections, corresponding sections of the corresponding pressure wrenches, and at a distance from one another equal to the distance between the keyholes. 2. The lock according to claim 1, characterized in that, in order to increase the reliability of operation, a step is made in the flap between the main portion of the helical teeth and the corresponding through-groove, the main key having a groove corresponding to the step. Vuzs