JPH061511B2 - IC card removal prevention device - Google Patents

Description

The present invention relates to a device for preventing removal of an IC card that is properly mounted in a mounting portion in a reader / writer, and more particularly to a mounting state of an IC card by an insertion operation when mounting at an appropriate position. The present invention relates to a device for preventing removal of an IC card in which an interlock means is activated by a signal sent mechanically at the same time as being mechanically detected and the operating lever is locked during read / write of the IC card.

[Conventional technology]

2. Description of the Related Art Today, IC cards in which an IC having the functions of a memory and a CPU is built in and configured into a card shape are widely used. Generally, in this IC card, as means for reading and writing data, electric contacts of the IC are provided on the outer surface of the card, and electric power is supplied to the IC card and data signals are exchanged by contacting these electric contacts. A reader / writer configured as described above is used.

The use of this type of IC card is expanded with the increase in memory capacity, and it can be easily and effectively used not only as various business cards for personal use but also as a memory medium for program control systems in various industries. It's being used. Since the frequency of use of such versatile IC cards is increased and the environment in which they are used is also susceptible to external contamination and damage, it is necessary to deteriorate the electrical contacts and exchange appropriate data signals. There is a difficulty that you cannot do it.

From such a viewpoint, a field for vibration energy due to a high-frequency electromagnetic field or ultrasonic waves is provided in the space, and the energy of this field is absorbed,
By rectifying and using it as a DC power supply, a built-in battery or a power supply contact point in an IC card becomes unnecessary, and a coupler such as an antenna or a coil is used for exchanging various data signals with a reader / writer. An IC card system has been proposed in which all the electrical contacts exposed to the outside of the IC card are omitted by embedding this coupler in an appropriate place of the IC card, and the electrical connection between the IC card and the reader / writer is non-contact. (For example, JP-A-58-154082).

In order to efficiently perform the power supply to the IC card and the input of the data signal when the IC card adopting such a non-contact coupling method and the reader / writer are coupled, the coupler and the reader / writer provided in the IC card are required. It is desired that the position alignment with the coupler provided at the position is performed.

[Problems to be Solved by the Invention] Therefore, when the IC card adopting such a non-contact coupling method and the reader / writer are combined, the IC card is inserted into the reader / writer in an appropriate state. It is possible to employ means such as printing a display capable of discriminating its insertion direction on an IC card, while providing an insertion position defining frame for properly positioning the IC card on the reader / writer side.

However, as described above, even if the IC card has a printed display for proper insertion into the reader / writer, the improper insertion may be performed due to a mistake by the operator. In such a case, It is necessary for the reader / writer to have means for discriminating the proper positioning state of the IC card.

Further, the reader / writer is provided with means for determining the state of the IC card only when the IC card is in an appropriate positioning state and fixing and holding the IC card immovably, thereby supplying electric power to the IC card. It is necessary to exchange data signals.

Therefore, these discriminating means and fixed holding means have to have a complicated structure using electrical, mechanical or optical means, respectively. In such a conventional structure, the reader / writer and the IC card are If the IC card moves due to some trouble during the sending and receiving of the signal, there is a problem that the electrical connection is lost and the memory in the IC card is lost or the system is destroyed. Furthermore, the conventional configuration has a drawback that the manufacturing cost of the reader / writer increases significantly.

Therefore, an object of the present invention is to further simplify the identification for the IC card reader / writer to always insert the IC card in an appropriate fixed direction, and to position the IC card at an appropriate insertion position. And its fixed holding can be achieved smoothly and easily, and during the read / write of the IC card, the movement of the operation unit of the IC card is restricted to ensure the execution of the read / write, and there is no erroneous operation. An object is to provide an IC card removal prevention device.

[Means for Solving the Problems]

In order to achieve the above object, an IC card removal preventing device according to the present invention has an IC card having a memory function and provided with an air-core input coil and an output coil respectively as signal input means and signal output means, When the IC card is inserted / removed and the IC card is inserted / removed, in combination with a reader / writer that reads and writes information by electromagnetically coupling the input coil and the output coil of the air core, A cutout portion is provided at a side edge portion, a board for guiding and inserting the IC card to a predetermined position and a protective cover plate fixed on the substrate are provided in the reader / writer, and a tip of the IC card is provided on an upper surface of the protective cover plate. A slide plate that engages with the IC card and advances to a predetermined position together with the IC card and has a return elasticity is provided, and the IC is provided at one side edge portion of the lid plate and the slide plate. When the card reaches a predetermined position, a cutout portion and a cutout portion are provided at a position corresponding to the cutout portion of the IC card, and the one side edge portion of the slide plate in the returning state is elastically provided corresponding to the cutout portion. A return-operable lever member having a contacting lock pin is provided to form an IC card mounting portion, an operation lever for returning the lever member is provided, and an interlock means for locking or releasing the operation lever is provided. It is characterized in that it is provided.

In this case, the operating lever has an engaging portion that engages with one end of the lever member, and has a locking piece provided at the tip end thereof, and is slidable in the same direction as the moving direction of the slide plate. Also, it is preferable to configure the eject lever urged to the operating side.

Further, the interlock means is provided with a lock lever pivotally provided near a locking piece of the eject lever, one end of the lock lever is engaged with a driving source, and the other end is locked by the driving source. However, it is preferable to be configured to approach and separate with respect to.

Further, it is preferable that the drive source is composed of a solenoid, and the lock lever is displaced by the excitation of the solenoid to lock or release the eject lever.

[Action]

According to the IC card removal preventing device of the present invention,
By the insertion operation of the IC card provided with the notches at the asymmetrical positions on both side edges in the longitudinal direction, the front end of the IC card engages with the slide plate, and advances to a predetermined position together with the slide plate.

In this case, since the slide plate corresponding to the cutout portion provided on one side edge of the IC card and the cutout portion and the cutout step portion are provided on the lid plate, respectively, when the slide plate advances to a predetermined position, the resilience is restored. The engaging portion of the auxiliary lock lever that constantly presses one side edge portion of the slide plate having the recess is recessed in the cutout portion, and the lock pin of the auxiliary lever enters the notch step portion and at the same time, Insert into the notch.

Further, the other side edge portion of the lid plate is also provided with a cutout portion corresponding to the cutout portion of the IC card, and the extension portion provided on the other side edge portion of the slide plate is brought into contact with the lock lever. A part of this lever fits into the notch on the other edge of the IC card.

As a result, the IC card in an improper state cannot be inserted because the notches do not fit, and the IC card can be inserted into the predetermined position only in the proper state, so that the IC card can be mechanically detected. The read / write operation is started by the power-on signal from the external device, and the operation lever for the IC card removal is locked by the operation of the interlock means to prevent an erroneous operation during the read / write operation, thereby providing a signal with the IC card. The transfer of can be achieved more reliably.

〔Example〕

Next, an embodiment of an IC card removal prevention device according to the present invention will be described in detail below with reference to the accompanying drawings in relation to a reader / writer suitable for use of this IC card.

1 and 2 show an embodiment of an IC card according to the present invention.

As the IC card used in the present invention, the one configured as shown in FIGS. 4 and 5 is applied.

First, in FIGS. 4 and 5, reference numeral 10 is I.
A C card is shown, and a printed circuit 12 constituted by a memory / arithmetic element composed of a single or a plurality of semiconductor integrated circuits is provided inside. In addition, this IC card 10
An air core input coil 14 for receiving power supply from the outside and inputting a required data signal and an air core output coil 16 for outputting a required data signal from the printed circuit 12 to the outside are respectively printed. It is installed at a proper position away from the circuit. In addition, these input coils 14
The output coil 16 and the output coil 16 are connected to the printed circuit 12 by lead wires 18, respectively. In the IC card 10 configured in this way, spaces that can accommodate the printed circuit 12, the input coil 14, the output coil 16, and the lead wire 18 are provided in advance on the synthetic resin substrate, and the above-mentioned respective spaces corresponding to these spaces are provided. After the components are mounted, they can be easily molded by coating with a synthetic resin coating material by a known laminating method or joining method.

However, in the present invention, the I
Notches 2 are formed on both side edges of the C card 10 in the longitudinal direction.
It is characterized in that 0 and 22 are engraved. These cutouts 20 and 22 are provided in asymmetrical positions so as to be offset from each other. In this way, the plurality of notches 20, 2
By providing two, a plurality of detection mechanisms that can be mechanically fitted into the notches 20 and 22 are provided, thereby performing position detection for determining the proper state of the IC card 10 and mechanically operating the IC card 10. Achieve a good fixed retention.
That is, in the IC card 10 according to the present embodiment, the input coil 14 and the output coil 16 having different functions are built in asymmetrically, and only in the case of a fixed state with the corresponding input / output means provided in the reader / writer. It becomes compatible (the front side of the IC card and the insertion direction into the reader / writer are determined). Therefore, for example, when the IC card 10 is turned into a proper state and the back side is the front side or is inserted in the reader / writer in the opposite direction,
In the final mounting position of 0, the pair of notches 2
0 and 22 are not compatible with the respective detection mechanisms, the IC card 10 is returned to the insertion start position without discriminating the improper state of the IC card and fixing and holding the IC card.

Next, a reader / writer provided with a detection mechanism adapted to the IC card of the present invention having the above configuration will be described.

First, as a basic configuration of the reader / writer, as shown in FIG. 6, a head core 30 for supplying electric power and a data signal to the input coil 14 of the IC card 10, and an IC
The head core 30 includes a receiving coil 32 for reading data from the output coil 16 of the card 10, and the head core 30 has a driving circuit 36 via a coil 34 wound around a part thereof.
, And the receiving coil 32 is connected to the receiving circuit 38. Therefore, the reader / writer configured as described above is provided in each of the IC cards 10 when the head core 30 and the input coil 14 of the IC card and the reception coil 32 and the output coil 16 of the IC card are properly opposed to each other. By providing the detection mechanism so as to correspond to the cutout portions 20 and 22, it is possible to smoothly and surely determine the proper state of the IC card and fix and hold the IC card.

FIGS. 1, 2 and 3 show the IC card 1 described above.
1 shows an embodiment of a reader / writer equipped with a removal prevention device suitable for a zero detection mechanism. That is, FIG. 1 and FIG. 2 show the planar structure of the main part of the IC card mounting portion, showing the state before and after mounting the IC card, respectively. In the figure, reference numeral 40 is the IC card 10.
Shows an insertion opening for storing and holding the guide side plate at a predetermined position, and a guide side plate 42 configured as shown in FIG.
A substrate 44 having 42, and a protective lid plate 4 on the upper side.
6, the base plate 44 and the cover plate 46 are fixedly arranged through a coupling tool. The cover plate 46 is provided with two notches 48 and 50 at its tip, and one notch 48 is provided.
The head core 30 is arranged with respect to the other notch 50
Is formed as a guide groove of the front end locking portion 52 of the slide plate 54 described later.

Therefore, the slide plate 54 is arranged on the upper surface of the lid plate 46, and a plurality of guide grooves 56 are formed in the same direction as the IC card 10 insertion direction.
The stopper pin 58 fixed to 6 is fitted to be slidable.

In this case, one end of the coil spring 60 is locked to a part of the slide plate 54 and a part of the cover plate 46 to cause the slide plate 54 to retain the return elasticity. Further, the one side edge of the slide plate 54 is set so as to substantially coincide with the one side edge of the lid plate 46. In this case, a cutout portion 62 and an opening portion 63 are provided at the portion where the cutout portion 20 is located at one edge of the cover plate 46 when the IC card 10 is completely inserted (see FIG. 2). A lever 68 having a lock pin 66 that fits inward (inside the notch 20 of the IC card 10) from the outside with respect to the first cutout 62 and the opening 63 by the elastic force of the spring 64 is provided. Further, in order to further secure and hold the IC card 10 by the lock pin 66, an auxiliary lock lever 98 interlocking with the lock pin 66 is provided at one side edge of the slide plate 54.

That is, the auxiliary lock lever 98 has the lock pin 66 loosely fitted to the substantially middle portion thereof, one end of which is pivotally attached to the cover plate 46 via the stop pin 100, and the other end lower surface is an engaging portion. The protrusion 102 is provided, and the protrusion 102 is in contact with one side edge of the slide plate 54.

In this case, the slide plate 54 advances to the one side edge of the slide plate 54 with which the protrusion 102 abuts, and the IC card 10
The cutting portion 104 for displacing the auxiliary lock lever 98 inwardly so that the lock pin 66 can be fitted into the cutout portion 20 when it reaches a predetermined tip position (FIG. 2).
To provide.

In this way, the other end of the auxiliary lock lever 98 is largely displaced inward, whereby the cutout portion 2 of the IC card 10 is
The fixed holding of the lock pin 66 with respect to 0 can be stabilized. Moreover, when the slide plate 54 is in the return position, the protrusion 102 of the auxiliary lock lever 98 is in contact with one side edge of the slide plate 54, and in this case, the lock pin 66 is used when the IC card is inserted. Since it is located away from the side edge, it does not damage the IC card.

On the other hand, a second cutout portion 84 is provided on the other side edge portion of the cover plate 46 corresponding to the other cutout portion 22 of the IC card 10, and a locking piece 68 is provided at one end with respect to the second cutout portion 84, and a spring is provided. 88
A lock lever 90 is provided that is fitted against the elasticity of the lock lever 90. Then, a locking piece 96 protruding from the extension portion 94 of the slide plate 54 is arranged so as to face the locking pin 92 provided at the other end of the lock lever 90. With this configuration, the tip of the IC card 10 is engaged with the locking portion 52 of the slide plate 54, and the slide plate 54 together with the IC card 10 is engaged.
When the IC card 10 reaches a predetermined tip position, the locking piece 96 provided on the extension 94 of the slide plate 54 contacts the locking pin 92 of the lock lever 90 to press and displace it. At the same time, the locking piece 8 of the lock lever 90
6 can be fitted into the notch 22 of the IC card 10 to fix and hold the IC card 10 from both sides. In this case, the limit switch 78 is arranged as shown in the drawing, and the actuator 80 thereof is connected to the extension portion 9 of the slide plate 54.
4 can be configured to operate. Therefore, if the IC card 10 does not have the one corresponding to the cutout portion 22, the displacement of the lock lever 90 is blocked and the forward movement of the slide plate 54 is also blocked. As a result, the limit switch 78 is operated at all. It is possible to prohibit the insertion of the IC card without the need.

Next, a detection device that detects a state in which the IC card is mounted will be described. The limit switch 78, which constitutes a part of this detection device, is provided on the other edge of the slide plate 54, and the extension 94 of the slide plate 54 is moved by the forward movement of the slide plate 54 in cooperation with the insertion of the IC card 10. And a locking pin 92 of the lock lever 90 provided on the locking lever 96
Are contacted with each other, and the lock lever 90 is pivoted clockwise so that the locking piece 86 is fitted into the notch 22 of the IC card 10, and this state is electrically detected. That is, as shown in FIG. 2, when the lock lever 90 pivots, the lock lever 90 contacts the actuator 80 of the limit switch 78, and the limit switch 78 is turned off.
The N-operation is performed to start the operation of the reader / writer, and the power-on signal from the external device locks the eject lever 82 which is a card ejecting device described later. However, the detection of the mounted state of the IC card by the limit switch 78 is started only after the state in which the IC card 10 is completely mounted in the proper position of the reader / writer is mechanically detected by the notches 20 and 22 of the IC card. Electrical detection becomes possible, and read / write of the IC card becomes more reliable than in the past, and an interlock that prevents the IC card from being taken out works during read / write to prevent malfunction.

Next, an embodiment of an IC card removal prevention device according to the present invention will be described with reference to FIGS. 1 and 2 in relation to the removal device.

As shown in FIG. 2, when taking out the IC card 10 fixedly held in the IC card mounting portion, the IC card ejecting device pushes the eject lever 82 in the arrow direction to return the lever 68 to the outside. Lock pin 6
6 is the notch 20 of the IC card 10 and the slide plate 54.
The slide plate 54 is released from the notch step portion 70 of the IC card 1 as shown in FIG.
It is configured to return the slide plate 54 in which 0 is locked.

More specifically, an eject lever 82 is provided in parallel with the side surface of the substrate 44 in the arrow direction so as to be able to move forward and backward while being guided by the guide groove 110 by the pin 112. Further, a spring 116 is stretched on the head of the stop pin 112 and a locking piece 114 provided at one end of the guide groove 110, and urges the eject lever 82 outward. Further, a locking piece 118 is formed at the leading end of the eject lever 82 on the entry side, and a long groove 120 is bored inside thereof.

Then, the operating portion 12 of the operating lever 68 is inserted into the long groove 120.
4 The pin 122 planted below is engaged.

The long groove 120 prevents the eject lever 82 from exerting a force even when the operation lever 68 pivots together with the lock lever 98 by the movement of the slide plate 54 when the IC card 10 is inserted. As shown in FIG.
When the C card 10 is mounted, the pin 122 of the operation lever 68 is in contact with one end of the long groove 120.

Therefore, when the eject lever 82 is pressed in the direction of the arrow, the operating lever 68 pivots counterclockwise, and this pivoting stops the auxiliary lock lever 98 and the spring 6 around the pin 100.
The IC card 1 is rotated clockwise against the biasing force of 4.
The lock pin 66 is disengaged from the notch 20 of 0 and the notch step 70 of the slide plate 54.

Further, at the same time, the protrusion 102 of the auxiliary lock lever 98 also comes out of the notch 104 of the slide plate 54. This allows
The lock lever 90 is disengaged from the engagement piece of the extension portion 94 of the slide plate 54 by a slight backward movement of the slide plate 54, so that the engagement piece 86 is moved to the other side of the IC card by the action of the spring 88. The IC card 10 is separated from the notch 22 and is returned to the insertion start position by the action of the spring 60 on the IC card insertion side together with the slide plate 54, so that the IC card 10 can be taken out.

Next, in relation to the eject lever described above, I
The C card removal prevention device will be described.

Now, even if the IC card 10 is mounted in the IC card mounting portion of the reader / writer in an appropriate state and is mechanically fixed and held, the IC card 10 is not electrically connected to the IC card and is not read during the reading or writing of information. If the eject lever 82 is pressed easily, the IC card may move, the electrical connection may be cut off, the memory in the IC card may be lost, or the system may be destroyed.

Therefore, since the power ON signal from the external device is started during the read / write of the IC card, the movement of the eject lever 82 is locked by the interlock means during that period.

That is, as shown in FIG. 1 and FIG. 2, a drive source 126, which is operated by the excitation of a solenoid, which is an interlock means, is provided at a position facing the locking piece 118 at the tip of the eject lever 82. A lock lever 128 swingable between the drive source 126 and the eject lever 82.
To provide. The lock lever 128 has a pin 130 at the center.
And a stopper pin 13 at the other end.
4 are planted. Further, the other end of the lock lever 128 is urged by a spring 136 toward the substrate 44 (in a direction away from the locking piece 118).

Therefore, when the IC card 10 is mounted at a predetermined position, as described above, the lock lever 90 pivots by mechanical interlocking with the forward movement of the slide plate 54, whereby the limit switch 78 operates and this signal By this, the read / write execution is started and the power is turned on from the external device.
The signal causes a solenoid of the drive source 126 to be excited to cause the operating rod 132 to retract. With this backward movement, the lock lever 1
28 swings, and the stopper pin 134 is positioned at the position immediately adjacent to the locking piece 118 of the eject lever 82 (the position indicated by the chain double-dashed line in FIG. 1).

As a result, the forward movement of the eject lever 82 is blocked by the stopper pin 134 to be in a locked state, and the malfunction of the reader / writer can be reliably prevented.

〔The invention's effect〕

As is apparent from the above-mentioned embodiments, according to the present invention,
By providing a plurality of notches on both side edges of the IC card in the longitudinal direction, when the IC card is inserted into the IC card mounting portion of the reader / writer, the IC card is advanced together with the slide plate having the restoring elasticity so that the IC card is moved to a predetermined position. By configuring the lock pin so as to fit into the cutout portion of the IC card, the insertion of the IC card and the fixed holding thereof can be achieved simply and reliably. Further, due to the notch portion of the IC card, it is possible to prohibit the insertion of the IC card before it reaches the predetermined mounting position in case of incorrect insertion. In addition, the signal sent from the switch that operates at the same time as mechanically detecting the proper mounting state of the IC card starts the read / write execution for the first time, and the power ON signal from the external signal device causes the interlock. By the operation of the means, the operation lever for taking out the IC card is locked,
Malfunctions during read / write operations are prevented, signals can be more reliably exchanged with the IC card, and the reliability of the reader / writer is guaranteed.

The operating lever has an engaging portion that engages with one end of the lever member, and a locking piece is provided at the distal end portion, and the operating lever is slidable in the same direction as the moving direction of the slide plate. And an eject lever urged toward the operating side, and further, the interlock means includes a lock lever provided with a lock lever pivotally provided near a locking piece of the eject lever, and the lock lever of the lock lever. One end is engaged with a drive source, and the other end is configured to approach and separate from the locking piece by the drive source. Therefore, even if an external force acts on the eject lever due to an erroneous operation, the locking piece and the lock lever lock each other on the line of action of the external force. For this reason, the lock lever is not pivoted by an external force, and since the load due to the external force does not act on the drive source, it is possible to use a low output drive source, which saves power consumption and simplifies the configuration. Can be downsized and the manufacturing cost can be reduced.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 shows an embodiment of an IC card removal prevention device according to the present invention, and is a plan view of a main part showing a state before the IC card is mounted. FIG. 2 shows an arrangement of the IC card removal prevention device. FIG. 6 is a plan view of the essential part showing the state after mounting the IC card, which is an embodiment. FIG. 3 is an explanatory view of an IC card mounting operation for the reader / writer shown in FIGS. 1 and 2, FIG. 4 is an external perspective view showing an embodiment of the IC card according to the present invention, and FIG. FIG. 4 is a plan view of the IC card shown in FIG. 4, and FIG. 6 is a schematic explanatory view showing a basic configuration of an IC card according to the present invention and a reader / writer corresponding thereto. 10 …… IC card 12 …… Printed circuit 14 …… Input coil 16 …… Output coil 18 …… Lead wire 20,22 …… Notch 30 …… Head core 32 …… Reception coil 34 …… Coil 36 …… Drive circuit 38 …… Reception circuit 40 …… Insertion port 42 …… Guide side plate 44 …… Board 46 …… Protective lid plate 48,50 …… Notch 52 …… Locking part 54 …… Slide plate 56 …… Guide groove 58… … Stop pin 60 …… Coil spring 62 …… First cutout 63 …… Opening 64 …… Spring 66 …… Lock pin 68 …… Operating lever 70 …… Notch step 72,74 …… Space 78 …… Limit Switch 80 …… Actuator 82 …… Eject lever 84 …… Second cutout 86 …… Locking piece 88 …… Spring 90 …… Lock lever 92 …… Locking pin 94 …… Extending part 96 …… Locking piece 98 …… Auxiliary lock lever 100 …… Set pin 102 …… Projection 104 …… Incision 106 …… Notch 110 …… Guide groove 112 …… Set pin 114… Locking piece 116 …… Spring 118 …… Locking piece 120 …… Long groove 122 …… Pin 124 …… Operating part 126 …… Drive source 128 …… Lock lever 130 …… Pin 132 …… Operating rod 134 …… Stopper pin 136 ... Spring

Claims (4)

[Claims] 1. An IC card having a memory function and provided with an air core input coil and an output coil respectively as a signal input means and a signal output means, and when the IC card is inserted and removed, the IC card is inserted. In combination with a reader / writer for reading and writing information by electromagnetically coupling the input coil and the output coil of the air core, a cutout portion is provided at a side edge portion of the IC card, and the reader / writer is provided with A substrate for guiding and inserting the IC card to a predetermined position and a protective cover plate fixed on the substrate are provided, and the tip of the IC card is engaged with the upper surface of the protective cover plate to advance to a predetermined position together with the IC card. A slide plate having a return elasticity is provided, and when the IC card reaches a predetermined position on one edge of the lid plate and the slide plate, the IC plate corresponds to the cutout portion of the IC card. A cutout portion and a cutout step portion are provided at positions where the IC card is mounted by providing a return-operable lever member having a lock pin at a position corresponding to the cutout portion so as to elastically fit into the cutout portion of the lid plate. A device for preventing removal of an IC card, further comprising an operation lever that forms a portion, and an operation lever that returns the lever member, and an interlock unit that locks or releases the operation lever. 2. The operating lever has an engaging portion that engages with one end of the lever member, and a locking piece is provided at the tip end portion, and is slidable in the same direction as the moving direction of the slide plate. The IC card removal prevention device according to claim 1, wherein the device is provided with an eject lever urged toward the operating side. 3. The interlock means is provided with a lock lever pivotally provided near a locking piece of the eject lever, one end of the lock lever is engaged with a drive source, and the other end is driven by the drive source. The IC card removal preventing device according to claim 1, wherein the device is configured to approach and separate from the locking piece. 4. The IC card removal prevention device according to claim 3, wherein the drive source is a solenoid, and the excitation of the solenoid causes the lock lever to be displaced to lock or unlock the eject lever.