SU1409746A1 - Permutation lock - Google Patents

Abstract

The invention relates to locking devices and allows increasing the secrecy of a code lock by increasing the speed of code change. The lock is controlled by the switch 4, which translates the trigger into the state of a logical "O, which starts the counter 3. In the case of an incorrect dialing, the AND element, through the element 2И-НЕ 13, resets the counter 3 to the initial state. In the case of correct dialing into the counter 3, as many pulses are recorded as there are digits in the code combination, the actuator 8 is triggered through the power amplifier 18. 1 slug.

Description

cl

with

four

Oi

1409746

12

This invention relates to a protection technique in its original state. In this case, on, 1 different objects from access, the code need to be repeated from the beginning. With

Tyronnyh persons, in particular to the electronic wrong set of all three digits in

locks. given order at the output of the circuit

; The aim of the invention is to increase2 AND-NE 12 a signal that is generated by increasing the efficiency of the power amplifier 18, and the occurrence of code combinations occurs. The actuating mechanism operates. The figure shows the functional low. devices.

The code lock contains the generator 1, the order of the set of predetermined digits defined by the detectors 2 and 3, the switch 4 of the dial, the position of the fourth switch trigger 5, the indication block 6, the decryption of the code setting block 9. At the same time

the torus 7, the execution unit 8, the unit 9 of the us-output of the first inverter 15 appears

code sets, differentiating chains level “1, according to which through differential 10 and 11, elements 2 AND-NOT 12, 13 and 14, the citing chain 10 and the second scheme

1 nvertors 15 and 16, element I 17, effort 2 and NOT 13 a reset pulse is formed

tel 18 power. the second counter 3 to its original state.

The device works as follows. A reset occurs every cycle of the control. When the lock is operated, it is used, in the case of a wrong code set.

Claims (1)

This is a three-digit code, which is set by three switches to the 10th position of the PIP formula, and the fourth switch changes the number of digits in the code. For example, a code lock containing a generator, code is set to 158. If the fourth switch counters, dial switch, trigger, block If the device is in the O or 9 position, then, on the display, the execution unit, the difference between the code set and 158, is that, in order to increase the position of 2, 3, 4, the order of the set of measurement, it contains the decoder , the block goes to sleep at 581, and at position 6 or 7, there are 25 code sets that differentiate the chains, 815. elements 2 AND-NOT, inverters, element AND, When power is applied to the combination lock, the generator output is connected to The generator 1 is switched on and generates impulses with a frequency of 0.5-1 Hz at the S-input of the trigger and the input of the first counting output, a chick whose output is through a decoder which are fed to the input of the first account-connected to the display unit and the input 4ika 2, the output of which is connected to the code-blocking unit; the first output of the unit mountain 7, which converts the binary coding code through the first inverter is sub-decimal, and on the digital indicator it is switched to the first input of the first element we have the numbers from O to 9, running c2 AND-NOT and through the first differentiating accuracy of 0.5-1 Hz. chain to the first input of the second 1 The code set is performed by pressing the 2 AND-NAND element, the second output of the set-up 4 unit at the moment of code appearance is connected to the first input by the left indicator of the set code digits in the And-element and the first input of the third order. The set must be you-element 2 NAND, the output of the switch is filled in one cycle of changing the digits. The device is connected to the R-input of the trigger, the output | pressing the switch 4 at the output of the trigger — through the series-connected 1p 5 the level “O appears, and at the output-40 the second differentiating chain and the second inverter 16 - the pulse“ 1 that the inverter is connected to the second input and is fed to the inputs of the AND circuit and the AND circuit element AND and the second input of the third ele2I-NOT 14. ment 2 AND-NO, the output of the connected In the case of a correct set of digits with the counting input of the second counter, the setter actuates the element And 17 and the signal input of which is connected to the output is calculated by the second counter 3. In the case of the second element 2I-NOT, the output of the second In addition to the wrong set of digits of the code, the counter-counter is connected to the second input of the first Circuit 2 AND-NOT 13, 14, which of the element 2 AND-NOT, the output of which connects the reset signal of the second counter 3Ien to the actuating mechanism.