SU1747660A2 - Code lock - Google Patents

Abstract

The invention relates to staples and makes it possible to improve the operating conditions of a combination lock. In the housing 1, closed-cover 3. there are placed a bolt 2 with a transverse groove 15 and grooves 17 under the cylinder mechanism 16, a code system with locking discs 4 having grooves 5, and a clamp 6 for placing it in the transverse groove 15 and in the grooves 5 code system. The lock is equipped with a code system switch in the form of a lever 8 pivotally connected to the latch 6 with a pivot axis mounted on it that carries the handle. The lock is provided with a stopper of the extreme positions of the lever 8, made in the form of a pin 10 and -holes 12 for accommodating the pin. 1 з п. Ф-лы, 5 Il.

Description

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The invention relates to locking devices, in particular, to locks, which can be widely used for locking various rooms, and is in addition to the main one according to the author. St. No. 896233.

A code lock is known, comprising a bolt, a lock fixed on a fixed axis, a bolt extension mechanism and a code system with a drive made in the form of locking disks mounted on a common axis, kinematically interconnected by means of leading, driven and locking pins, for which the discs have holes arranged along an arc of a circle,

The well-known lock, along with simplicity of design and high reliability, has the following disadvantages in operation.

Opening the lock from inside the room is possible only with the correct dialing of the code from the outside. This means that when people are inside the room, the bolt of the door must be unlocked, which allows the door to be opened by inserting the simplest master key into the axis of rotation of the bolt, and if the code is accidentally knocked down, people will be locked.

The aim of the invention is to improve the operating conditions, allowing people from the inner side of the room to use the lock.

 This is achieved by the fact that the well-known code lock is additionally equipped with a code system switch, made in the form of a hinged link with a lock lever, installed in a housing with a rotatable axis mounted on it, carrying a handle for controlling the inside

In addition, the code lock is equipped with a stopper of the extreme positions of the lever, made in the form of a pin eccentrically secured in the handle, two holes are made in the housing to accommodate the end of the pin, while the handle is mounted for axial movement.

FIG. 1 shows the proposed lock in the closed position of the bolt, view from the inside of the room with the handle set to be turned on, i.e. working position of the lock; FIG. 2 is a section A-A in FIG. 1; Fig 3 - the same. that in fig. 1, with a partially shown lid removed with a control handle and a handle of a cylindrical mechanism; in fig. 4 - the same, with the disabled, i.e. idle position of the lock; in fig. 5 - lock from the outside of the room.

In the case of the lock 1, a bolt 2 is placed. On the cover of the lock 3 a known code system is mounted, consisting of several

locking discs 4 with grooves 5 and a drive (not shown).

Inside the lock is placed the latch 6 bolt, spring-loaded spring 7, and the lever

8 pivotally connected to the latch 6 and mounted on the fixed axis 9 in the housing 1. On the lever 8, there is mounted a pivot axis 10 on which a handle 11 is rigidly fixed, located on the outer surface of the lock to control the lever 8 from inside the room. For ease of use, the handle 11 is installed with the possibility of swinging around the axis 9. The hinge axis and the swivel axis are structurally integrated.

To stop the extreme positions of the lever 8, it is provided with a stopper made in the form of a pin 10. The pin axis and the pivot axis are structurally unified. Stopping the pin 10 is achieved by two blind holes 12 and 13 made in the casing for positioning the pin end, the latter is spring-loaded by the spring 7, working apart from torsion, and for compression. To fix the pin the handle 11 is axially displaceable along the axis 9 For the passage of the pin through the cover 3 there is a concentrically made groove (not shown). On pin 10 there is a thrust collar 14. One

from the positions of the lever 8 corresponds to the working position of the latch 6 (Fig. 3), providing a lock between the locking discs 4 of the code system and the bolt 2 in its closed state by entering

the latch 6 in the transverse groove 15 of the crossbar. The other position of the lever 8 corresponds to unlocking (Fig. 4), since the latch b cannot be inserted into the slot of the bolt when it is closed, the letter symbols

on the cover correspond to the working (ON) and idle (OTK) position of the lock b.

To open the lock on the outside of the doors, on the axis 16 of the extension mechanism of the crossbar 2, a standard cylinder mechanism for mortise locks is installed, the leash of which interacts with one or more grooves 17 of the crossbar 2. On the inner side of the room, the door is closed and opened by the cylinder mechanism 18. On the outside of the room in the door there are two openings - one 19 for inserting the key into the cylinder mechanism, the other

rectangular section 20 — to enter the same key in the code mechanism. The latter is formed by a longitudinal groove made on the axis of the known drive of the code mechanism and a cylindrical hole of the decorative element of the lock.

The proposed code lock works in two modes as follows,

If code lock of bolt 2 is required in its closed position, then handle 11 is shifted to the right of cover 3, as indicated by the arrow in FIG. 2. At the same time, the switch slides along the fixed axis 9. Pin 10. fastened to the handle 11. compressing the spring 7. moves to the right up to the stop of the shoulder 14 into the lever 8. and the left end of the pin 10 is pulled out of the blank slot 12. Next, the handle 11 is set in the ON position. as indicated in FIG. 1. and shift to the left, as indicated by the arrow in FIG. 2. At the same time, the handle slides along the axis 9 until it rests against the cover 3. And the pin 10 is installed in the blind hole 13 (Fig. 2), fixed by the spring 7.

Clamp 6, bolt 2 is set to the working position, providing a lock between locking discs 4 and bolt, as locking pin 6 is inserted into transverse groove 15 of bolt 2, preventing it from being opened with a key inserted into the cylinder mechanism. From the outside of the room, it is necessary to insert a key (not shown) intended for opening the cylinder mechanism into the rectangular opening 20 of the code mechanism and dial the correct code in a known manner.

After all the discs 4 are correctly installed, their grooves 5 are installed against the protrusion of the latch 6 of the crossbar 2. The key is re-inserted into the hole 19 of the cylinder mechanism and the groove 17 (or grooves) of the bolt 2 is pushed and twisted (or a few turns). aligned slots of the locking discs 4. bolt 2 is unlocked and shifted to open the door.

If the code lock bolt is not needed, for example, during a short period between door openings, the handle 11, similarly to the previous one, is again shifted to the right (FIG. 2). pin output. 14 from a blind hole, set in the OTD position (Fig. 1) and. shift to the left, fix the pin 14 in the hole 12. The latch bolt 2 is set to the idle position (Fig. 4). this ensures that there is no blocking at any position of the slots of all the disks.

Therefore, to open the lock from the outside, it is enough to insert the key directly into the hole 19 of the cylinder mechanism and turn (or several turns) to the groove (or grooves) 17 of the crossbar 2.

In the case when it is necessary to get out of the locked room outside when the handle 11 is set to the ON position and the code system is knocked down, the handle 18 5 will not open the crossbar, since it is locked by the latch 6. In this case, first turn the handle 11 to the position The Quality Control Department, the key mentioned earlier, the latch b, in the idle position, unlocks the bolt, and then open the bolt with the handle 18. To close the lock on the outside of the room, simply insert the key into the hole 19 of the cylinder mechanism and lock the door. If the handle 11 is set to the ON position, then in the closed position of the deadbolt, the latch 5 will be inserted into the transverse groove of the deadbolt, preventing direct unlocking of the cylinder mechanism. After that, the code mechanism should be knocked down by inserting the key into the hole 20 and turning it either side at least half a turn. If the handle 11 is set to the OTK position, do not touch the code mechanism after the doors are closed, since the position of its disks is indifferent unlocking.

The proposed design allows the lock to operate with a standard cylinder mechanism with either a code lock or a lock, which is convenient for the user. Such a lock with code lock enabled is not accessible to unlocking by unauthorized persons without knowing the code, since pick up the master key to the cylinder lock.

5 mechanism is impossible. Due to the increased secrecy of the lock (the number of secrets of the cylinder and the code mechanism are multiplied), the simplicity of the device and the reliability of the lock with a code lock

0 can be widely used.

Claims (2)

Invention Formula 1 code lock auth st. No. 896233. 5 different in that. that, in order to improve the operating conditions, it is equipped with a code system switch, made in the form of a hinged link with a lock lever installed in the housing, with a pivot axis mounted on it, carrying a handle for controlling the inside 2. The lock according to claim 1, characterized in that it is provided with a stopper of extreme positions of the lever, made in the form of a pin eccentrically fixed in the handle, two holes are made in the housing to accommodate the end of the pin, while the handle is axially displaceable . / 9 7 -W FIG. 2 5 8 h.-. „„ W Fig4