JP3436780B2 - Card lock device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card lock device for reading a code recorded on a card and unlocking it.

[0002]

2. Description of the Related Art A conventional card lock device has a card insertion hole formed in an escutcheon and a card insertion hole that penetrates a case and a sliding portion slidable with respect to the case at one side of the card insertion hole. A tumbler pin hole perpendicular to the hole is provided, an end of the tumbler pin hole facing the card insertion hole is covered with a thin partition wall, and a tumbler pin having a magnet embedded therein is inserted into the tumbler pin hole. The sliding surface of the sliding portion forms a shear line with which the end of the tumbler pin engages and disengages, and the tumbler pin is always in a position to engage with this shear line.

When a card in which a small piece of magnet is embedded is inserted into the card insertion hole, the magnet of the tumbler pin repels (or attracts) the magnet of the card, and the end face of the moved tumbler pin coincides with the shear line. The lock is released by sliding in the direction opposite to the urging direction. Since the tumbler pin hole is covered with a thin partition wall, there is no risk of being unlocked by picking like a general locking device, and since the tumbler pin hole cannot be seen, it is possible to copy a card by stealing a code. There is little danger. Also, unlike electric locks, battery replacement and maintenance are not required, so they are used in hotel locks and other fields.

[0004]

The card lock device with a built-in magnet having the above advantages also has the following problems. (1) When a Hall element or the like is inserted into the card insertion hole, the position and polarity of the magnetism generated by the magnet embedded in the tumbler pin can be detected, so the code is stolen and the card is illegally unlocked by the duplicated card. There is a risk.

(2) When a card with a built-in magnet is stored in a wallet or pocket together with a cash card or a prepaid card, there are many cases in which the magnetic recording of the cash card or the prepaid card is destroyed. It was hoped that some measures would be taken. An object of the present invention is to solve such a problem, and even if a Hall element or the like is inserted into a card insertion hole, there is no risk of detecting a code, and a cash card or a prepaid card carried with a card with a built-in magnet. The present invention provides a card lock device in which there is no risk of destroying the magnetic recording of the above.

[0006]

In order to achieve the above object, in the card lock device of the present invention, one side of the card insertion hole is provided in the case of a non-magnetic material, and one end is in the card insertion hole. A plurality of adjacent magnets are arranged vertically and horizontally at a predetermined pitch, the other end of the magnets is connected by a yoke to form a magnetism generating section, and a non-magnetic plate material is formed on the other side of the card insertion hole. A tumbler pin cover, a leader base made of a non-magnetic material covered with the tumbler pin cover, a tumbler holder made of a non-magnetic material having a gap formed between the leader base and the tumbler pin cover slidably inserted into the gap. A slide plate made of a non-magnetic material having a contact plate that is pushed by the card inserted into the card insertion hole, a spring that biases the slide plate in a direction opposite to the card insertion direction, and the slide plate is a card. A card identification sensor that detects the movement in the insertion direction and issues an unlocking signal is provided, and the reader base, the tumbler holder, and the slide plate positioned in the urging direction are positioned in the middle of the adjacent magnets. A long hole penetrating the tumbler pin hole, penetrating the tumbler pin hole arranged in the sliding direction on the slide plate, and inserting a tumbler pin made of a material attracted to the magnet into the tumbler pin hole, An annular groove having a diameter capable of sliding in the long hole is provided in the tumbler pin to form a card identification portion, and a magnetic extension chip of a magnetic body facing the magnet at the insertion position in the card inserted into the card insertion hole. And a magnetic shortening chip of a magnetic body whose both ends are opposed to the plurality of magnets, and when the card is inserted, the ring of the tumbler pin is inserted. Position of is characterized in that overlapping with the slots.

The types of the magnetic shortening chip include those in which both ends face a plurality of magnets vertically arranged, and those in which both ends face a plurality of magnets horizontally arranged.
A magnet whose both ends face a plurality of magnets arranged obliquely is included. Further, in place of the card identification sensor, a lever may be provided which, when the slide plate slides due to the insertion of a regular card, is pushed and rotated by the slide plate to drive the locking device in the unlocking direction. Good.

[0008]

In the card lock device constructed as described above, the tumbler pin is not attracted to the magnet because the distance between the magnet and the tumbler pin in the magnetism generating portion is large at all times when the card is not inserted. Therefore, in some of the tumbler pins, the annular groove does not coincide with the elongated hole of the slide plate, the tumbler pin prevents the slide plate from moving, and the card lock device is in the locked state.

In such a locked state, the Hall element can be inserted into the card insertion hole to detect the position of the magnet and the magnetic pole, but since the magnet arrangement and the code of the card do not match, the code is detected. You cannot do it. When you insert a legitimate card into the card insertion hole of the locked card lock device, the magnetic force lines emitted from the magnet pass through the magnetic extension tip of the card and extend to the tumbler pin, so the tumbler pin is attracted to the magnet and the annular groove of the tumbler pin is Match the long hole of the slide plate.

Since both ends of the magnetic shortening chip of the card face a plurality of magnets, the magnetic force lines flow from one magnet to the other magnet via the magnetic shortening chip and do not reach the tumbler pin. Since the annular groove of the tumbler pin originally coincides with the elongated hole of the slide plate, the annular grooves of all the tumbler pins coincide with the elongated hole.

Since the annular groove can pass through the elongated hole, when the regular card is further pushed, the slide plate slides in the direction opposite to the biasing direction of the spring to push the card identification sensor, and the card is emitted from the sensor. The card unlocking device is unlocked by the unlocking signal. If the slide plate pushes the lever,
A rotating lever unlocks the locking device. Since a magnet is not embedded in the card, there is no possibility that the magnetic recording of the cash card or the prepaid card will be destroyed even when carried with the cash card or the prepaid card.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a card lock device, and FIG.
FIGS. 3A and 3B and FIGS. 3A and 3B are vertical sectional views for explaining the operations of the first half and the second half of the card lock device. Figure 1
As shown in FIG. 3, a shallow rectangular concave portion 2 is provided on the upper surface of an upper case 1 formed of a non-magnetic material in a rectangular shape, and the concave portion 2 has a large number of square holes 3 arranged vertically and horizontally. Penetrate.

A rectangular parallelepiped magnet 4 is inserted into each square hole 3, the upper surface of each magnet 4 is connected to a magnetic yoke 5 placed in the recess 2, and the lower surface of each magnet 4 is an upper portion. The magnet 4 is substantially flush with the lower surface of the case 1, and the magnets 4 are arranged such that the N poles and the S poles are alternately arranged, as shown in FIG. The magnet 4 and the yoke 5 constitute a magnetism generating section A.

At the front end of the upper case 1, a front wall 6 extending at right angles from the upper and lower surfaces of the upper case 1 is provided, and a horizontally long card insertion slot 7 is provided at substantially the center of the front wall 6. Front wall 6
The escutcheon 8 attached to the front surface of the escutcheon is provided with a long hole 9 overlapping the card insertion slot 7. The screw hole 10 provided on the upper surface of the upper case 1 has a hole 12 in the cover 11.
The screw 13 inserted into the screw is screwed, and the cover 11 is fastened to the upper case 1.

The cover 11 is provided with a lower wall 11c that bends inward at the lower end of a rear wall 11b extending below the rear edge of the upper wall 11a, and serves as a cover for the upper case 1 and a lower case described later. Below the upper case 1, there is a card insertion groove 14 communicating with the card insertion slot 7, and below the card insertion groove 14, a lower case is provided.

The lower case includes a non-magnetic tumbler pin cover 15, a non-magnetic leader base 16 that contacts the lower surface of the tumbler pin cover 15, and a leader base 16.
And a tumbler holder 17 made of a non-magnetic material disposed with a space therebetween (see FIGS. 1 and 2A), and a non-magnetic material is provided between the reader base 16 and the tumbler holder 17. The slide plate 18 of is slidably inserted.

Leader base 16 and tumbler holder 17
Is provided with a tumbler pin hole 19 facing an intermediate point between the adjacent magnets 4 and 4, and a tumbler pin 20 made of a magnetic material or a magnet is inserted into the tumbler pin hole 19. The tumbler pin cover 15 prevents the tumbler pin hole 19 from being exposed in the card insertion groove 14, and is made of a relatively thin plate material. A lower cover 40 that closes the tumbler pin hole 19 is provided on the lower surface of the tumbler holder 17 (see FIG. 5A).

The slide plate 18 has a pushing portion 21 bent and extended downward from the front edge and an abutment plate 22 bent and extended upward from the rear edge. A card identification sensor 23 is provided (see FIG. 2A). Provided a spring support bar 24 on either side of the rear end surface of the tumbler holder 17, the spring support rod 24, a spring 25 is inserted between the tumbler holder 17 and the contact portion 21 is attached.

Therefore, the slide plate 18 is shown in FIG.
(A) is urged in the direction of arrow F, and the pusher 21 operates the card identification sensor 23 when it moves in the direction opposite to the direction F. When the slide plate 18 moves in the direction of the arrow F and is in the standby position where the contact plate 22 contacts the rear surface of the leader base 16, the tumbler pin hole 26 provided in the slide plate 18 causes the leader base 16 and the tumbler holder 17 to move. Tumbler pin hole 19
Overlap with.

The slide plate 18 is provided with an elongated hole 27 penetrating a plurality of tumbler pin holes 19 arranged in the sliding direction of the slide plate 18, and the tumbler pin 20 is provided.
An annular groove 28 having a diameter capable of sliding in the long hole 27 is provided therein. The annular groove 28 has such a height that it can slide in the long hole 27 when the tumbler pin 20 moves due to the influence of the regular card C inserted in the card insertion groove 14. As described above, the card identifying portion B is configured by the lower case and its related components.

In the card C, the front and back of the card body 29 are covered with the sheets 30 and 30, and the card body 29 has a circular hole 31 facing the magnet 4 when the card C is inserted into the card insertion groove 14. A large number of elongated holes 32 whose both ends face the magnets 4 and 4 are provided, a magnetic extension tip 33 of a magnetic material is embedded in the circular hole 31, and a magnetic shortening tip 34 of the same magnetic material is embedded in the elongated hole 32. It is buried (see FIG. 1).

An elongated hole 35 is provided in front of the recess 2 in the upper case 1, and the shutter 36 and the spring 3 are provided in the elongated hole 35.
7 is inserted (see FIG. 2 (A)). A recess 36a that supports the spring 37 is provided on the upper surface of the shutter 36, and an inclined surface 36b is formed at the lower end of the front surface (see FIG. 1). The shutter 36 pressed by the spring 37 always closes the card insertion groove 14, but when the card C is inserted,
The shutter 36 pushed by the inclined surface 36b of the card C moves up to open the card insertion groove 14.

In front of the shutter 36, there is provided a dust removing hole 38 which vertically penetrates the front end portion of the leader base 16, and below the dust removing hole 38, a chute 39 which opens to the lower end portion of the lower case. Communicate with each other. Therefore, the dust blocked by the shutter 36 does not accumulate in the card insertion groove 14, but passes through the dust removing hole 38 and the chute 39 and is discharged to the outside.

Next, the operation of the card lock device configured as described above will be described with reference to FIGS. 2 (A), (B), 3 (A), (B) and 5 (A), (B), ( This will be described with reference to C). When the card C is not inserted at all times, the magnet 4 of the magnetic field generator A and the tumbler pin 20 are separated by the card insertion groove 14, so that the tumbler pin 20 is not attracted to the magnetic line of force of the magnet 4 (see FIG. 2 (A) and FIG. 5 (A)).

Therefore, in some of the tumbler pins 20, the annular groove 28 does not coincide with the elongated hole 27 of the slide plate 18, and the tumbler pin 20 moves such that the slide plate 18 moves in the direction opposite to the biasing direction of the spring 25. The card lock device is locked. In such a locked state, the Hall element can be inserted into the card insertion groove 14 to detect the position of the magnet 4 and the direction of the magnetic pole, but since the arrangement of the magnet 4 and the code of the card C do not match, You cannot detect the code.

Card insertion groove 1 of the card lock device in the locked state
When the regular card C is inserted into the card 4, magnetic lines of force emitted from the magnet 4 pass through the magnetic extension tip 33 of the card C and extend to the tumbler pin 20, so that the tumbler pin 20 is attracted to the magnet 4 and the annular groove 28 of the tumbler pin 20 is inserted. Corresponds to the long hole 27 of the slide plate 18 (see FIG. 2 (B) and FIG. 5 (C)).

The magnetic shortening chip 34 of the card has two ends on each side.
Since the magnets 4 and 4 face each other, the magnetic field lines are
Flow through the magnetic shortening tip 34 to the other magnet 4 and do not reach the tumbler pin 20 (FIG. 3 (A) and FIG. 5).
(See (B)). The annular groove of the tumbler pin 20 on the left side of FIG. 2B originally coincides with the elongated hole 27 of the slide plate 18, so that the annular grooves 28 of all the tumbler pins 20 coincide with the elongated hole 27.

In this way, the slide plate 18 becomes movable, the card C moves the slide plate 18 in the direction opposite to the urging direction of the spring 25, the pushing portion 21 pushes the card identification sensor 23, and the card identification sensor. The card lock device is unlocked by the signal generated by 23 (see FIG. 3 (B)). In the above embodiment has been configured to electrically unlocking a signal of the card identifying sensor 23 is provided in place of the card identifying sensor 23, lever pressed and rotated in the pressing portion 21 (not shown) , rotated in a direction in which the lever is pushed in the pushing portion 21 is disengaged, it can be mechanically unlocked to lock device.

Although the magnetic chips 33 and 34 are embedded in the card C, but the magnet is not embedded, even if the card C is carried together with the cash card or the prepaid card, the cash card or the prepaid card is also carried. There is no fear that the magnetic recording of will be destroyed.

As shown in FIG. 1, both ends of the magnetic shortening chip 34 are opposed to the adjacent magnets 4, 4 arranged in the vertical direction or the adjacent magnets 4, 4 arranged in the horizontal direction. However, the magnets 4 and 4 that are adjacent to each other in an oblique direction may be opposed to each other, or the two magnets 4 and 4 that are separated from each other may be opposed to each other. The number of codes is extremely large.

[0031]

Since the present invention is constructed as described above, it has the following effects. (1) The tumbler pin hole is covered with the tumbler pin cover, so there is no risk that a third party will know its position. However, since the position of the magnet is different from the position of the tumbler pin hole, the theft accident of stealing the code, duplicating the card and unlocking it illegally is completely prevented.

(2) Depending on the combination of the magnetic extension chip and the magnetic shortening chip and the orientation of the magnetic shortening chip, there is an advantage that the number of codes of the card lock device becomes extremely large. (3) Since the magnet is not embedded in the magnetic card, there is no risk of destroying the magnetic record of the cash card or the prepaid card even if it is stored in the wallet or pocket together with the cash card or the prepaid card. It is convenient to carry.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a card lock device.

2A and 2B are vertical cross-sectional views for explaining the operation of the card lock device.

3 (A) and 3 (B) are vertical sectional views for explaining other operations of the card lock device.

FIG. 4 is a perspective view showing an arrangement state of magnets.

5 (A), (B), and (C) are longitudinal cross-sectional views of essential parts for explaining the relationship between a magnet, a magnetic card, and a tumbler pin.

[Explanation of symbols]

A magnetic field generator B card identification section C card 1 upper case 4 magnets 5 yoke 7 Card slot 11 cover 14 Card insertion groove 15 Tumbler pin cover 16 leader base 17 Tumbler holder 18 slide plate 19,26 tumbler pin hole 20 tumbler pins 21 Pusher 23 Card identification sensor 25 springs 27 long holes 28 annular groove 29 card body 33 Magnetic extension tip 34 Magnetic shortening chip 36 shutters

─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-50-97500 (JP, A) JP-A-49-70797 (JP, A) JP-A-7-91120 (JP, A) JP-A-63- 14968 (JP, A) Actually open 2-56272 (JP, U) Actually open 63-80812 (JP, U) Japanese Patent Sho 42-15668 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05B 47/00 E05B 49/00

Claims (3)

(57) [Claims] 1. A plurality of magnets, one end of which is close to the card insertion hole, are vertically and horizontally arranged at one side of one side of the card insertion hole provided in a case of a non-magnetic material, and the other end of the magnet is A magnetizing unit is formed by connecting with a yoke, and a tumbler pin cover made of a non-magnetic plate material and a leader base made of a non-magnetic material on the tumbler pin cover are provided on the other side of the card insertion hole. A non-magnetic material tumbler holder having a gap formed between the leader base and a contact plate slidably inserted into the gap and pushed by a card inserted into the card insertion hole. A slide plate made of magnetic material, a spring for urging the slide plate in the direction opposite to the card insertion direction, and a card identification sensor for detecting the movement of the slide plate in the card insertion direction and issuing an unlocking signal are arranged. Setting , The leader base, the tumbler holder, and the slide plate positioned in the urging direction, through the tumbler pin holes facing the middle of the adjacent magnets, and the tumbler pin holes arranged in the sliding direction on the slide plate. A through hole is provided, a tumbler pin made of a material attracted to the magnet is inserted into the tumbler pin hole, and an annular groove having a diameter that allows the long hole to slide is provided in the tumbler pin to form a card identifying portion. Then, in the card to be inserted into the card insertion hole, a magnetic extension chip of a magnetic body facing the magnet at the insertion position, and a magnetic shortening chip of a magnetic body having both ends facing a plurality of the magnets are embedded, A card lock device, wherein the position of the annular groove of the tumbler pin overlaps with the elongated hole when the card is inserted. 2. The type of the magnetic shortening chip includes one in which both ends face a plurality of magnets arranged in a vertical direction, and one in which both ends face a plurality of magnets arranged in a horizontal direction. 2. The card lock device according to claim 1, wherein both ends of the card lock device are opposed to a plurality of magnets arranged obliquely. 3. A lever for driving the locking device in an unlocking direction by being pushed by the slide plate and rotating when the slide plate slides by inserting a regular card, instead of the card identification sensor. The card lock device according to claim 1, wherein the card lock device is provided.