JPS6175182A - Magnetic pole converter of magnet key - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Field of 7F grinding on Zaragi] Is the so-called grindstone tumbler lock uninvented? Regarding the device of the magnetic key to be solved, in particular, the magnetic poles of each of the α water = m stones are pressed, VC is changed, and one magnet is embedded in the magnetic key. Concerning a magnetic key conversion device that allows you to use a key to make 4 stones.

In the system of subordination and construction, the beggar building (hereinafter referred to as building 5) is cleaned, 3 punishments and construction + 4.
The building management corporation that undertakes the contract is
The main key of the Tani 7 & Gounri building, the main key of the Nobile Noriyuki, is to destroy the main keys that have been entrusted to the respective jurisdictions of the business offices that have been collected by area, and to remove them from our Jgj office. Temporary - whose purpose is a patrol car due to the corridor contact! J Ume Building 2
They manage the building by opening the population room using the main key, cleaning the building during a regular market or in an emergency, and burying the equipment.

In addition, in the machine gbei system that handles general affairs and houses, etc., the main key of each place and house is kept in advance, and the main key of each place and house is kept in advance. For the sake of efficiency, Umagajiro carries out maintenance work at multiple locations in one visit.

In this way, building management systems and mechanical security systems can be
Nowadays, the number of main keys that each patrol car must carry ranges into the tens of thousands. Of course it is troublesome to choose,
The risk of losing the main key increases in proportion to the number of keys you carry.

Furthermore, in the unlikely event that the user does not carry the desired main key, it is necessary to return to the office to retrieve the main key each time.

Furthermore, is there any unauthorized use or unauthorized use of the main key by a person who is directly involved in the handling of the main key or is involved in covert fishing? il
If it is not possible to prevent the main key from being made, and an accident occurs in which the main key loses paddy, or if it is discovered that the main key has been made again, it may be necessary to turn on the lid to maintain safety and replace the lock. There are some inconveniences.

[Traditional technique]

Among the above inconveniences, if you have to carry a large number of main keys with you, you can solve the problem of unavailability.
Is this the so-called master key system used in hotel departments and rooms? According to this master key stem, the above main key is for non-convenience,
The humidity caused by unauthorized reproduction and the damage caused by the center is huge.
Tx. Considering the technology that was one of the reasons for this, it can be concluded that there are no new models that solve the above-mentioned inconveniences and problems.

[Problem that the invention seeks to solve]

Therefore, the purpose of this invention is to make a magnetic key used to unlock a so-called magnetic tumbler. So, is the magnet of the uncle / the puller's decline? In addition to the above-mentioned trowel, the purpose of Ike's invention of the present application is to provide a device for changing the magnetic pole of a magnetic key so that it can be changed when unlocked. To provide a device which allows only a person who is instructed and registered to operate the device to change the magnetic pole of the magnetic key, and further improves safety.

〔problem? Means to solve the problem]

In order to achieve the above-mentioned object, the invention of - by Shirazu includes a magnetic key holder for temporarily fixing a magnetic key, and a magnetic key fixed to the magnetic key holder, each of which has its magnets facing each other. arranged so that
A plurality of pairs of celadon yokes equipped with magnetizing coils, each N
A magnetizing direction cutting means that is connected to the sensing coil and sets the direction of ionization flowing in one magnetizing coil independently of that of other magnetizing coils, and a tunnel that co-phases the magnetizing current of the magnetizing coil K. It is characterized by having the following features:

Further, in another invention related to a magnetic key, a magnetic key holder for temporarily fixing a magnetic key and a magnetic key fixed to the magnetic key holder face each other with the magnet interposed therebetween. A plurality of the magnetizing yokes arranged in J: 5 and wound with magnetizing coils are connected to each magnetizing coil, and the direction of the current flowing through the -d magnetic coil is determined from that of the other magnetizing coils. includes a plurality of magnetization direction clarifying means that are set independently, an operator data input hand board for inputting data of the operator 1'F;
Operator judgment 1≠ for determining whether D- or D- is determined based on the data of a person whose data has been approved in advance, and a magnetizing coil for magnetizing the above-mentioned magnetic key, and a drive + stage. and a power supply for supplying the bee-harvesting electricity frL' to the magnetizing coil.
L. The magnetizing coil drive means is configured to operate only when the operator determination means determines that the input operator data belongs to a pre-approved person t'4!
J symptoms.

Embodiment 2 of the invention will be explained below with reference to the drawings.

[Example of the invention according to the present application]

The non-inventive Madai Sotoki -pole ffi device (hereinafter referred to as "car magnetic pole converter") is housed in a compact case 3 with a lid 1 and a handle 2, as shown in Figure 42. Then, when the lid IYd is opened, an operation panel 4 appears.

On the operation panel 4, there is a five-source switch 5, a magnetic key holder (hereinafter referred to as a holder) 6, and a charging lamp 7, such as a neon lamp, which indicates the charging of the capacitor of the layered magnet source mentioned above. 4E-n (in the illustrated embodiment), the direction of magnetization of each of the four permanent magnets (hereinafter referred to as "car magnets") installed in the magnet key can be set independently from other magnets. 101) changeover switches 8-1 to 8-10, H and layered magnetic button 9 are provided.

Does the above-mentioned retainer 56 stir the Mizuku stone buried in the magnetic key whose magnetic pole is to be changed? This is for temporarily fixing the magnetic key during the operation, and the illustrated embodiment has an insertion slot 12 having the same opening as the hole in the magnetic tumbler lock for receiving the magnetic key. The key is fixed.

Then, the magnetic key has a grooved bottom, for example, as shown in the third row. In other words, magnetic key 13
1. The main body 14 is the same as the main body 14 in the length direction of the non-adult material 14. A certain distance from each other? A pair of magnets embedded in the main body 15, 15 f
It has a J-guy (the fruit shown in the diagram, 5 elbows in the Ike example). 4!
The rgff stone 15 is magnetized in the j-base direction of the main body 14.

And, rather than putting it down to 44 evils, the magnetic key was made into a magnetic tumbler - 6mK + 4i people, and the magnetic key's valley is 1 to 1! 'l, 15 is aligned in the axial direction of the cylinder 17 with the corresponding magnet tumbler I6. The magnetic tumbler 16 is guided by the internal radial sliding curve, and when it is in the locking angle, the tumbler! (1ne1
Due to the elasticity of 8, one end of the magnet tumbler (the fourth end) is formed in the inner circumferential surface of the outer surface 19. The tumbler spring 18 is caused by the magnetic attractive force and repulsive force acting on the tumbler magnet n provided in the tumbler 16 and magnetized in its length direction and the ω stone 15 of the magnetic key.
Against the elasticity of the magnet tumbler I6 and the upper i pi notch 21
It has come to be in harmony with the However, the composition of the magnetic tumbler and gold is not the gist of the present invention. ρ et al., which is also described in Japanese Patent Application Laid-Open No. 53-127092, will not be described in more detail.

Tumbler magnet n, 22 and magnet 15, 15 shown in the fourth figure
The paralysis of magnetization with the two Ta/Pra fa stones "12.'
22 is the 4th meeting where both are pushed towards the stone, but if we fix the tumbler magnet a of the 4th curse and the direction of the beach of 22, then the magnet 15 and the 7th of the pond of 15 will move 10,000 times. In the combination, the magnetic force applied to the tumbler magnet η, 22 is 1 garden stone ta/
If the internal force of puller 16 is to be phased, the case is 2 ■Rito Kawa,
There are cases where both of them face leftward in Figure 4, and in these three cases (6 stone tumbler 16 is u). therefore,
By aligning the magnets 15, 15, 15, and 15 in the ;, t, and a directions, a difference of 4 yr (1 d) is obtained, and a total of 10 magnets in 5 pairs gives a difference of 4''=1024.

Now, returning to the explanation of the retainer 6, the retainer 6 of C has two tiers of non-calm charge, ie, the first 1 j6 and second waiting board 2
A bolt (not shown) following the bolt hole δ (drain 5) k connects the spacer 27 to the spacer 27,
27 (46l prisoner)? As mentioned above, one end (in Figures 5 and 6) of which π is formed with an insertion slot 12 having the same cross-sectional shape as the keyhole of a magnetic tumbler lock. And j6ri.

Each of the mutually opposing inner surfaces of the first and 42 holding plates B and 24 is provided with a magnetized yoke make i (i : 1, 2..., l(1) are implanted. The opposites -i, 28-i of each magnetizing yoke correspond to the magnetic keys 13 inserted in the holding F!F56. The stones 15-i%:P are arranged so as to face each other.A coil conductor is wound in the same direction on each of the pairs 4-1 and 4-1 of each celadon yoke. These are connected to each other to form magnetizing coil 4-1.
It is said that the 7# magnetic current flowed through this, and the lights of the ring yoke that are facing each other with the magnet 6 of the magnetic key -1,4-
The end faces of the magnets 15 have different magnetic poles, so a strong magnetic flux passes through the magnets held together, and as a result, the magnets 15 are magnetized in the direction of the magnetic flux.

2. The conductive wires constituting the four magnetic coils are connected to each other through slits 31 and 31 (Figure aZ6) formed on the side surface of the holder 6, and the wires are drawn out to the outside.

1, insertion thrower of retainer 6) 1tll opposite to 12
Interlock switch 32 (
The free end of the actuator of the microswitch (see Figure 1) is facing, and when the magnetic key 13 is inserted into the retainer 6, the interlock switch 32 is closed.

The ten magnetizing coils 29-1~'', !9-10 are as follows:
As shown in FIG. 1, these 1 tJ- celadon coils are connected in series through the corresponding changeover switches 8-1 (see 2nd line), and the 1 tJ- celadon coils are connected in series and the diode is connected. Those connected in parallel are connected to, for example, a DC-DC converter via a large 8-capacitor capacitor 36. This DC-DC converter 37 has a voltage of several volts (
Porto) - DC voltage of several tens of volts is boosted to 500 volts, and its inputs and 4 outputs are connected to the interlock switch 32. Ft and 7J switch 5 (see Figure 2)? Through it, it is connected (lighted) to the battery of analogy number 1 self-effect.

Also, is the output terminal of the DC-D'C converter 37 with a large output/beadance? A discharge switch is installed like a monkey in a short period of time, and a discharge switch is installed like a 1m11 evil. This discharge switch, 38
is assumed to be closed by pressing the celadon button 9 (Fig. 42).

Furthermore, in parallel with the capacitor 3 (5), a neon lamp 7 (J!2
When the light weight of the capacitor 36 is completed, it lights up.
The off-1 switch 8-i is 1. As shown in diagram X1,
One double pole double throw switch, one open/close switch and k?
These switches are connected to the operation panel 4.
(Picture 2) The shuttle can be switched or opened or closed in 4 motions by operating the shuttle above.

And the four fixed contacts of the upper and lower double-throw switches? A pair of towns connected to the X hand as shown in the figure below, each connected to 4 toy wires 41! 1III] Operate the contact piece as described above and ξ channel 4
If the upper knob is used to cut the salt moving blade 7"L, then the knob should be turned upwards or downwards. The flow direction of the current changes, and therefore the magnetization direction of the magnet 15 of the magnetic key changes.Furthermore, by operating the knob rod, the open/close switch is also moved to open/close, and the changeover switch 8-i also changes the recorded signal. Take out R3-1. In the implementation row shown in (8), remove the recess of changeover switch 8-1 from R3-1.
When I published one issue on Ueba in 2J, the magnetic key ^” @I
The value of the magnet 15-1 corresponding to the whistle is N1 years old, and the output signal R3-1=o. If you tilt the lever downwards in the anti-X dimension, the 2nd magnetic force on the magnetic key base @ side will be S, cold and t:su, enemy gamma, Yukiroku signal R8.
Of course, =1.

A grifter that outputs the recording signals R5-1 to +<S-10 to the printer 42 in the same manner as if it were a total failure. 7 11 is supplied to the circuit 43 in parallel. This circuit 43 is also connected to a clock device 44, such as l'! Information signals regarding the year, month, day, hour and minute are provided from time to time. Furthermore, by pushing the knob magnet wholesaler 9 (Yang 2), the printer output signal PDS 'a' is taken out from the electrical generator 1 (not shown), and this printer duty signal PDS
, through the slow nine-plate device 45, the upper d own Zolinta width II
Hongkanteru to control circuit 43. It is assumed that both the printer 42 circuit and the printer 1 circuit 434 are built into the outer case 3.

To change the shape of the magnetic key using the grooved magnetic pole according to the present invention as described above, first 1.
Turn on the switch 5 and insert the magnetic key 13 into the retainer 6.
S and interlock switch 32 are turned on, and as can be seen in FIG. 1, light is applied to capacitor 36.

(Incidentally, operate the on/off switches 8-1 to 8-1o, and add 1α to the magnetic pole distribution that bulges to the parallel surface of the magnet key. -1~+5-
1(, +7 respectively [N, S, N, S, N, N, S.

N, S, N,], when the Vcf is returned, the knob of each changeover switch 8-i is set to
hand.

Once the capacitor 36 (Fig. 1) has been replaced, the neon run shift (Figs. 1 and 2) will light up, so check that it is lit and press the row button 9. When the discharge switch shown in the first figure is closed, the capacitor A is discharged and a large current instantaneously flows through the valley layer magnetic coil 4. As a result, the magnet 15-1 at 1011 embedded in the magnet key 13
~15-10 are the corresponding changeover switches 8
The magnetic key 13 is moved in the direction set by -1, and thus the magnetic key 13 is magnetically converted into the desired key.

- As mentioned in @, the printer drive signal PDS is generated by pressing the magnetization button 9, and this printer
S is the delay time set in the delay production 45... 1 stay here 1, the capacitor 36 of the output circuit 43
supplied to

As a result, the recording signals R8-1 to RS-IU# are recorded with the same number of bits as %11 or %Ql of the recording signal R8-1 with the date and time of the magnetic key change. Accordingly, this is done by assigning codes such as CN, S) or (1, 0), and recording these codes in the order of ordinal number 1.

When the magnetic key is pulled out from the magnetic key's output polarity conversion ring retainer 6, the interlock switch j2 opens and the magnetic pole conversion device returns to the standby state.

The pulled out magnetic key is used for the purpose of the magnetic tumbler.

[Other fruit S group of investigation of falling on the present application]] Dou VIA! Ego 1 (according to Kashio 11) shows the emotional direction of the love device I, and this embodiment shows how to set the direction of the magnet 15 gradually by a so-called toggle switch as described above. Rather than being lit, it was turned on by pressing a button.

That is, a pair of 1st and 2nd setting boxes 46S and 47 marked with (1, [S]) 15 K
#IJ, place these setting buttons on the operation/two channel 4 (not shown). Two rungs are placed inside the valley setting tip, and a lamp lights up when pressed, so that only one child can recognize which of the first and second legs 1, 16 and 47 is pressed. It has become.

Introducing the above 41 setting 46 to the electricity generator 48,
Output signal Y from the open air signal generator 48 which is activated by pressing the first setting button 46, 7 of the IJ cent type
Supplied to the Lip Flora 2″490 set signal input terminal,
The obtained positive output of the flip-flop f49 is sent to the amplifier 5.
It is supplied to the drive coil 53 of the first iron relay 52 via I.

10,000, by pressing the second setting button 47, the air mixture signal generator 48
The output '@' which is also taken out is connected to the above-mentioned flip-flora f.
49, is supplied to the reset No. 1g input terminal.

Then, from the drive coil 53 button, as shown in the seventh row, the double-pole double-throw changeover switch and the open/close switch are interlocked to drive the l'j6 and the second foot MJ46j=
By selectively pushing the magnetizing coils 4 and 47, the direction of the magnetic flux flowing through the magnetizing coil 4 can be determined, and
Since it is clear that the signal R8 is canceled, it is D.
A more detailed explanation will be omitted. [Embodiments of Ike's invention] As shown in FIG.
i55, and determines whether the operator is a person who has been previously authorized to operate the Hachifusuma Transformation Device, and only when the operator is an authorized person, the Coil: ! 56 3A movement handles are operated, and the 11' is set so that the 1 □α coil group 29 and 29 are magnetized.Princess 7r of the magnetic sliding change device (tu fee element,
At the same time, magnetic key holding 436, magnetizing coil cutting pocket middle stage group 8, 8. Magnetic coil details 4, 29R? The iU source 36 (37) and the like are common to the above-mentioned invention.

Figure 9 shows a magnetic key according to another embodiment of the invention! , shows the detailed configuration of the transformation device, and the same figure is labeled 449 and has been added to the data input by the creators of Shiooriba Card League, etc., and the microcomputer 57. and Sasemi Coil Kakeru @ Ushidan 56. This will be explained in detail below.

The microcomputer 57 has a microprocessor (central rain supply) for the king and a memory (storage device) 5.
9, an interface (input/output signal processing circuit M) 60, and D. et al., for example, are controlled according to the flowchart shown in FIG. 410. Note that the suffix P shown in FIG. 10 indicates each step of the flowchart.

At each predetermined address in the memory 59, the operator data signal I
DS is stored as IDS data.

This IDS data is usually plural.

- 10,000, each workplace of the building management company carries a forest stand certification card (hereinafter referred to as ID card) 61 (Fig. 9), and the above operator data signal is transmitted from this ID card 6.
1, e.g. 1-concentrically or optically recorded, I
D card 61? The operator data signal IDS can be read by inserting the card into the card slot of the card league. The operator data signal IDS read by the card reader is supplied to the interface 60 of the microcomputer.

The interface 60 also receives the recording signal R8-
1 to R8-10 & supplied in parallel.

Furthermore, the printer, which is IQE'ed by the operation of the microcomputer 57 described above, takes out the celadon board G MDS from the interface ωD in response to the drive signal PDS, and outputs the printer. H motion words ++ PDS printer, ll
The signal is supplied to the trigger signal input terminal of the 111 wholesaler 43.

As seen above, the 3゜dynamic deviation MDS distinguishes the additional seat plate 51 and the discharge switch north. It is supplied to the magnetizing coil (Yetsu Jh+ stage) 6 having the drive coil 532. In this case, the magnetizing coil 44III/I+collection;)6 is the so-called '1
Configure a relay.

[Inside]

Magnetic proboscis changes according to other inventions made in 17,7 as mentioned above
! A! How to change the 11 sensations 7 of the magnetic key in Minato Naoke 1, +1iJ tjj-, similarly to the one invented by tjj-, the ton 0 switch 5 'a' 1 = -11j father's magnetic key 1.3 wo 1 Place iiT person in Chuunin slot 12. In addition, in conjunction with this, the magnetic key arrangement specified by the 1-1 daun polo from the column 19j is set by the switches 8, 8. Then, in the same way as @marked, capacitor 36 (I; g9
(Fig.) Light 1 starts, light passes through, hard light ends, light 4 lamp 7
(See Figure 2.) The G9 light will light up to notify you that charging is complete.

Is charging lamp 7 on? : Confirmed 1, unlike the invention of R++ J-Ki-, the invention of the magnetic revolution was changed, and instead of pressing 9 (false 2), the ID card was placed in Card League 54 (J 9). 61. Therefore, other inventions?
Please do not use a clear fly fence.

Then, in the evening, when the rD card b1 is inserted, the card league 54 is programmed with a bad sign (- switch is pressed, and the output signal of the O switch starts the program indicating 1llllOi, and goes to step P2. Then, the name data 1g IDS read from the ID card 61 by the card League is inserted and stored in a predetermined register ?LΦ.

Next, in step P3, the IDS data of the memory card 9 (beam 9) is extracted.In step P4, it is determined whether or not the IDS data of the memory card 9 (beam 9) is the same as the operator data signal IDS added to the ID card. 11'1llJi saru.

If they are not the same, the process goes to step P5 and the memory 59
It is determined whether there is IDS data that has not yet been read out in the memory 59a, and if there is, it is
The data is coming out 1, ID again in step P4
Compare the operator data on the old IDS. In this way, the card reader 54ff records the reconnaissance data number IDS on the requested ID card 61 in the memo l) 5
9 Comparing and contrasting with each IDS data that has been performed - When Doma αSvI creation data No. 1 If>S meets with any of the IDS data groups registered in the memory 59, that is, 7 〇 The first ten works of the magnetic tome are the koto, the one that was made 4, the printer in step P6, the arc 1rlIlc
! Operator data No. IDS is on J road 13, step P
At 7, the front 3-pi recording deviation code R8-1 to 17810 is sent out,
Further, in step P8, the multiplier number PDS added to the printer is set to 100. 7 粱、PG + Temple: Who and what kind of porcelain was lit?

Next, in step P9, the magnetization drive signal MDS, which has been delayed for a certain period of 1', is multiplied by red, and the magnetization/drive stage 10 (FIG. 9) that receives this multiplies the following: By closing the discharge switch for a certain period of time, the invention can be achieved. Geroto and 1 town 1 request and return the magnetism of the magnetic key 13. It should be noted that when the emotional drive signal MDS is
1 item is Tsunagi capacitor AZ and samurai coil pillar 4.

When the eccentric circuit consists of A4, put your foot on 2 to 3ff of the number of points, step P1oVc? The operator data IDS stored in RenoStar is erased, and step P
The program ends with 1□.

Returning to steps P and P5, when the prober data (g IDS) extracted from the ID card 61 does not match any of the IDS data group stored in the memory a9, Those who are carrying one handgun are not allowed to change back operations, so the program is terminated, and of course the magnetized Kinuta G MDS is also original (because it will not be , I can't do magnetic 4 love ketsu 5.

[Effect of the invention] From the above explanation, it is clear that D. Nayo 5 is uninvented by a one-word magnetic key? If you have to manage a large number of discreet magnets, you have no choice but to carry a magnet key!
Moreover, the complexity of burrowing can be completely reduced.

Additionally, due to malfunction 1, the use of the magnetic pole converter H
Even if a large number of locks can be unlocked with an 11tJ magnetic key, in reality, physically, there is an 11tJ magnetic key-C, so compared to carrying a large number of magnetic locks, it is Because of my fear, I didn't have 1H.
+ The maturity of 1 of the information section has significantly increased (adult.

Furthermore, Ikuso lost his Shio Riege magnet key.
Pre-υfi+ mag non-key? 1- by the blinding device
Silver length, :l! If you use it, you can easily create a ζ1 trap.

/41: Parent's 1i ((7) According to the invention, the magnetic key cutting devices will not pray for the year unless the author is the person who created the magnetic key. λd←＋
m +, V kesa ga yori -; Becomes a threat, becomes a threat, etc. -13v.

The magnet of the Madai key in Embodiment 11 and 2 shown in the figure was supposed to be magnetized once in the thickness of the main body of the magnetic key, but in other types of magnetic tumbler locks, In some cases, a magnet is provided at the edge VCfi of the main body of the magnet key (see the above-mentioned Japanese Patent Publication No. 127092/1983). In this case, the magnet is magnetized in the width direction of the main body of the magnetic key, but it goes without saying that the present invention can also be applied to other types of magnetic keys.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of a magnetic pole conversion device according to an embodiment of the present invention, Fig. 2 is a plan view of its operation panel, Fig. 3 is a plan view of a magnetic key, and the fourth Figure 5 is a plan view showing the inside of the retainer, Figures 4 and 6 are cross-sectional views of the retainer, and Figure rA7 is another example of the invention of -. FIG. 8 is a block diagram showing the Kurade direction switching means in the embodiment; FIG. 8 is an overall configuration diagram for clarifying the configuration of another invention related to the present application; and FIG. 8 is a block diagram showing the detailed configuration thereof. , Figure # is a flowchart showing microcomputer software - C
A). Su...Gap Samurai, :Yo, 8...-J4e Switch, 12
...Insertion slot, I3...Magnetic key, 15.
...(d stone, ah...nagisa/shu yoke, ko9...reconsideration coil, jb...capacitor. 37...DC-1) C converter, manufacturer...card league. 55... Operator identification + completion, :)7... Microcomputer, 61...10 Sword. Figure 4

Claims (1)

[Scope of Claims] 1. A magnetic key timer for temporarily fixing a magnetic key, and a magnetic key fixed to the magnetic key holder arranged so as to face each other with each magnet in between, A plurality of pairs of magnetizing yokes wrapped around magnetizing coils, and a magnetizing direction switching means connected to each magnetizing coil to set the direction of current flowing through the magnetizing coil independently of other magnetizing coils. What is claimed is: 1. A magnetic key pole converting device comprising: a plurality of magnetizing coils; and a power supply supplying a magnetizing current to a magnetizing coil. 2. Claim 1, characterized in that the power source has a DC converter connected to an automobile battery.
The magnetic pole conversion device for the magnetic key described in Section 1. 3. A magnetic key holder that temporarily fixes the magnetic key, and a magnetic key fixed to the magnetic key holder, which are arranged so as to face each other across the magnets, and are wrapped with magnetizing coils. a plurality of pairs of magnetizing yokes, a plurality of magnetizing direction switching means connected to each magnetizing coil and setting the direction of current flowing through the magnetizing coil independently of other magnetizing coils; operator data input means for inputting data; operator determination means for determining whether the data of the operator is data of a previously approved person; and a magnetizing coil for magnetizing the magnetic key. comprising a driving means and a power source that supplies magnetizing current to the magnetizing coil,
A magnetic pole of a magnetic key, characterized in that the magnetizing coil driving means operates only when the operator determining means determines that the input operator data is that of an authorized person. conversion device. 4. The magnetic key polarity conversion device according to claim 3, wherein the power source has a DC converter connected to an automobile battery.