JPH08235325A - Ic card reader/writer - Google Patents

Abstract

PURPOSE: To provide the IC card reader/writer which has a high operation reliability to properly read and write information. CONSTITUTION: Contact terminal patterns 43 of an IC card 3 are divided in the direction orthogonal to the card insertion direction of an arrow X, and plural contacts are provided in the direction orthogonal to the card insertion direction of the arrow x correspondingly to the contact terminal pattern 43, and these contacts are brought into contact with contact terminal patterns 43 to write/read information in/from the IC card 3. In this IC card reader/writer, a card reception part 36 is provided in the card insertion direction of the arrow X, and an elastic member 34 is provided so as to face the card reception part 36 with a card insertion space 33 between them, and the IC card 3 is elastically energized toward the card reception part 36 by the elastic member 34, and plural contacts are brought into contact with contact terminal patterns in this state.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reads information stored in an IC card or writes information to the IC card in a state where the IC card is transported into an apparatus. IC
The present invention relates to a card reader / writer, and more particularly to a card transport mechanism for the card reader / writer. 2. Description of the Related Art FIGS. 17 to 19 are schematic diagrams for explaining the structure of a conventional IC card reader / writer. FIG. 17 shows a state before an IC card is inserted, and FIG.
Indicates a state in which an IC card is being inserted, and FIG.
The state where the C card is in the loading position is shown. [0003] In these figures, reference numeral 101 denotes a housing, which is provided with a slope 103 gradually rising from the entrance side to the back side in the insertion direction X of the IC card 102. 104 is a card doorway 1 of the housing 101
It is a lock claw provided in the vicinity of 05. [0006] Reference numeral 106 denotes a mover which is always elastically urged toward the card entrance 105 by a tension spring (not shown), but moves to the back side with the insertion of the IC card 102. The movable member 106 is formed with a hollow portion 107 having a rectangular planar shape penetrating in a direction perpendicular to the insertion direction of the IC card 102, and a contact member 108 having the same shape as the hollow portion 107 is vertically movable therein. Has been inserted. A predetermined number of contact pins 109 are provided on the upper surface of the contact member 108, that is, on the side facing the inserted IC card 102. on the other hand,
On the lower surface of the contact member 108, an inclined surface 110 that slides on the slope 103 is formed. Reference numeral 111 denotes a card end sensor, which is arranged near the end of the slope 103. Before inserting the IC card 102 as shown in FIG. 17, the lock claw 104 is in the closed state, and the moving element 1
06 stands by near the card entrance 105. IC
When the card 102 is inserted to some extent from the card entrance 105, the tip of the IC card 102 comes into contact with the moving element 106 as shown in FIG. When the IC card 102 is further inserted in this state, the moving element 106 moves horizontally toward the back of the housing 101 accordingly. On the other hand, the contact member 108 also moves toward the inner side of the housing 101 while being pushed by the mover 106, and gradually rises while sliding on the slope 103 during the movement. [0006] Then, as shown in FIG.
2 is inserted to a predetermined position (loading position), the tip of the contact pin 109 is
The second contact terminal pattern (not shown) is pressed.
The card end sensor 111 detects that the IC card 102 has reached the loading position,
An electromagnetic solenoid (not shown) is driven by the detection signal to rotate the lock claw 104. In this state, reading or writing of information is performed. On the other hand, I
When the eject operation of the C card 102 is performed, the electromagnetic solenoid operates according to an eject command signal from a control unit (not shown), whereby the lock claw 104 automatically returns to the position shown in FIG. The movable element 106 and the contact member 108 are pushed toward the card entrance 105 by the restoring force of the spring urging the IC card 102, whereby the IC card 102 is ejected. [0007] Although not shown, I
The C card 102 is provided with a module having a contact terminal pattern on the surface and an IC chip inside.
The contact terminal pattern is divided into a plurality of pieces in a direction orthogonal to the insertion direction of the IC card 102, while the contact pins 109 on the contact member 108 are arranged in the card insertion direction so as to contact the respective divided terminals of the contact terminal pattern. A plurality of them are provided in the orthogonal direction. By the way, in order to reduce the cracks and the like of the module when the IC card 102 is bent and deformed by an external force, there is a tendency that a module having a small dimension is used, and accordingly the contact is made. Each divided terminal of the terminal pattern is also small, and the pitch of the contact pins 109 is also narrow. Despite such a tendency, the conventional IC card reader / writer has not sufficiently examined the positional alignment between the contact terminal pattern of the IC card 102 and the contact pin 109. Therefore, for example, even when the IC card 102 is inserted in a reader / writer with a slight inclination, the divided terminals of the contact terminal pattern become smaller as described above, and the pitch of the contact pins 109 becomes narrower accordingly. , The contact pin 109 makes contact with the adjacent divided terminal, or the contact pin 109 makes contact with the insulating layer provided between the divided terminal to be contacted and the adjacent divided terminal, so that appropriate information can be obtained. There is a problem with reliability because writing and reading are not possible. An object of the present invention is to solve the above-mentioned problems of the prior art and to provide an IC card reader / writer which can write and read proper information and which has high operation reliability. In order to achieve the above-mentioned object, according to the present invention, a contact terminal pattern of an IC card is divided into a plurality of parts in a direction orthogonal to the card insertion direction,
A plurality of contacts are provided corresponding to the contact terminal patterns in a direction orthogonal to the card insertion direction, and the plurality of contacts are brought into contact with the contact terminal patterns to write or read information to or from the IC card. It is intended for IC card reader / writers. A card receiving portion is provided so as to project along the card inserting direction, and an elastic member such as a leaf spring is installed so as to face the card receiving portion through the card inserting space. The present invention is characterized in that the plurality of contacts are brought into contact with the contact terminal patterns in a state where the IC card is elastically biased toward the card receiving portion side. According to the invention, as described above, the card receiving portion is provided so as to project along the card insertion direction, and the elastic member is installed so as to face the card receiving portion through the card insertion space. A plurality of contacts are brought into contact with the contact terminal patterns while being elastically biased toward the card receiving portion. Therefore, the contact and the contact terminal pattern can be aligned in position, and the contact can be made even if the size of the module is made small (following the narrowing of the contact pitch) due to the mechanical strength. The contact between the contact pattern and the contact terminal pattern is accurately performed, information is appropriately written in and read from the IC card, and reliability is improved. Next, an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of the IC card and the reader / writer before the IC card is inserted, FIG. 2 is a front view of the reader / writer, FIG. 3 is a front view of the reader / writer with the stopper removed, and FIG. 4 is a reader. FIG. 5 is a bottom view of the lighter, and FIG. 5 is an exploded perspective view of a main part of the reader / writer.
First, the overall schematic configuration of the reader / writer will be described. On the front of the die-cast chassis 1,
A front plate 2 made of a synthetic resin molded body is attached. A guide member 4 extending along an insertion direction X of an IC card 3 to be described later is fixed to a substantially central portion of the chassis 1, and a movable member 5 can move within the guide member 4 with a predetermined stroke. Has been instructed. The moving element 5 is always elastically biased toward the front plate 2 by a tension spring 6. A drive motor 7 capable of rotating in the forward and reverse directions is provided with a guide member
And a drive-side bevel gear 8 is attached to a drive shaft thereof. A driven bevel gear 9 meshes with the drive bevel gear 8 and a roller pad 10 made of an elastic material such as rubber is provided coaxially with the driven bevel gear 9 to rotate integrally with the driven bevel gear 9. To do. In the vicinity of the guide member 4, a first card sensor 11 made of a transparent photo sensor and a second card sensor 12 made of a transparent photo sensor are provided.
Along the insertion direction X of the IC card 3, the IC card 3 is disposed substantially at the center and the back of the chassis 1. A card take-out bar 13 is provided substantially parallel to the guide member 4, and the tip end of the card take-out bar 13 is inserted into a through hole 14 formed in the front plate 2. Normally, a through hole 14 is formed by a plug 15.
Is blocked. As shown in FIG. 4, I is located below the chassis 1.
The lower plate 16 is attached to the chassis 1 via a card insertion space 33 (see FIG. 3) having a sufficient space for the C card 3 to be inserted.
A slot 17 is formed at a position opposite to. The elongated hole 17 is provided with a plate-like slider 1 from above the lower plate 16.
8 are fitted and fixed. A pressing roller 19 which is in elastic contact with the roller pad 10 is rotatably attached to the lower surface plate 16. The pressing roller 19 is made of synthetic resin, and an elastic biasing force is applied to the roller pad 10 by a coil spring 20. (See FIG. 12). Further, the card ejection bar 13 of the lower plate 16
A slide groove 21 is cut from the end edge at a position corresponding to. As shown in FIGS. 1 and 4, when, for example, the light emitting elements of the first card sensor 11 and the second card sensor 12 are fixed to the chassis 1 side, respectively,
The light receiving element facing it is fixed to the lower surface plate 16 side.
The overall schematic configuration is as described above. Next, the loading (ejecting) mechanism of the IC card 3 will be described in detail. As shown in FIG. 5, the guide member 4 fixed to the chassis 1 has a substantially U-shaped front shape, and the side walls 22 have guide grooves 23 of the same shape as shown in FIGS. Are formed two by two along the insertion direction X of the IC card 3. The guide groove 23 is located in the upper horizontal portion 2.
3a, the lower horizontal portion 23b, and the upper horizontal portion 23
It is composed of an inclined portion 23c that connects a and the lower position horizontal portion 23b. As shown in FIGS. 6 and 7, the mover 5 guided by the guide member 4 comprises a carriage 24 made of a material having a small frictional resistance such as polyacetal resin and a phosphor bronze thin plate. Eight contactors 25, two support pins 30, and their support pins 3
It is composed of a metallic roller 31 rotatably supported at both ends of 0. As shown in FIG. 6, the contactors 25 are arranged in two stages, four each in a direction orthogonal to the insertion direction X of the IC card 3. The carriage 24 is composed of a horizontal portion 26 and a card contact portion 27 that hangs from the rear end of the horizontal portion 26. Pins are inserted into the front and rear sides of the horizontal portion 26 as shown in FIG. The holes 28 are formed parallel to each other. In order to minimize the frictional resistance between the IC card 3 and the card contact portion 27, as shown in FIG.
1 is designed to be narrower than the width W2 of the horizontal portion 24. Two
Reference numeral 9 denotes a spring hook portion, on which one end of a tension spring 6 is hooked as shown in FIG. As shown in FIG. 7, the tip of the contact 25 is bent in a dogleg shape, and as shown in FIG. 6, the tip is broken into two pieces. The reason for the splitting will be described later. Eight contacts 25 are fixed to the horizontal portion 26 of the carriage 24, respectively, and the contacts 25 are connected to a flexible print circuit (FPC) 32 as shown in FIG. The width of the carriage 24 is slightly smaller than the distance between the side walls 22 and 22 of the guide member 4, and the carriage 24 is arranged between the side walls 22 and 22 as shown in FIG. 1 and as shown in FIG. By rotatably inserting the rollers 31 into the guide grooves 23, the moving member 5 is supported by the guide member 4. As shown in FIG. 13, on one side wall of the chassis 1, a leaf spring 34 bent in a mountain shape so as to face the card insertion space 33 is supported by two retaining pins 35. The other side wall of the opposing chassis 1 serves as a card receiving portion 36. Before describing the loading operation of the IC card 3, the structure of the IC card 3 will be briefly described with reference to FIGS. 1, 8 and 9. As shown in FIG. 8, the IC card 3 includes a card substrate 38 made of a hard synthetic resin plate, overlays 39 and 39 attached to the upper and lower surfaces of the card substrate 38, and an adhesive 40 at a predetermined position on the card substrate 38. It is composed of a module 41 embedded and fixed via a substrate and a striped magnetic layer 42 embedded in a card substrate 38 as shown in FIG. FIG. 9 shows the structure of the module 41.
Is. The module 41 has an X direction for inserting the IC card 3.
A first printed circuit board 44 having a contact terminal pattern 43 in which a plurality of small divided terminals are arranged in a row in a direction orthogonal to the first printed circuit board 44 (see FIGS. 1 and 13) and fixed on the lower surface thereof with an adhesive 45. Formed IC chip 46, a second printed circuit board 48 fixed to the lower surface of the first printed circuit board 44 with an adhesive 45 and having a predetermined conductive pattern 47 formed on both surfaces thereof, the IC chip 46 and the second printed circuit board It is composed of a bonding wire 49 for connecting 48, a sealing frame 50, and a resin layer 51 formed in the sealing frame 50. Next, the loading operation of the IC card 3 will be described. 1 and 10 show a standby state before the IC card 3 is inserted. As shown in these figures, the mover 5 is pulled toward the front plate 2 side by the tension spring 6, and at that time, the roller 31 moves the upper horizontal portion of the guide groove 23 as shown in FIG. It is located at 23a. Therefore, the movable element 5 is located at the highest position in the guide member 4, and the tip of the contact element 25 is located in the upper part of the card insertion space 33, and is in a free state where it is not pressed and deformed. The state of the contactor 25 drawn by a solid line in FIG. 7 shows this free state. Further, as shown in FIG. 10, in this standby state, the tip of the card contact portion 27 of the moving element 5 (carriage 24) crosses the card insertion space 33 and faces the square groove 37 of the slider 18. (See Figure 4). In such a state, as shown in FIG. 1, the IC card 3 is placed with the module 41 upward and first.
To the card slot 52 of the reader / writer (see Fig. 2)
Insert from. By this insertion, the side edge of the IC card 3 comes into contact with the leaf spring 34 as shown in FIG.
The IC card 3 is pushed toward the card receiving portion 36 by the pressing force of 4, and the position of the IC card 3 in the card insertion space 33 in the width direction (the direction orthogonal to the insertion direction X) is regulated. As shown in FIG. 10, the slider 18 fixed to the lower surface plate 16 has an upper surface slightly protruding from the upper surface of the lower surface plate 16, and a front portion of the slider 18 for guiding the IC card 3 smoothly. An inclined surface 53 is provided. Therefore, the leading end of the inserted IC card 3 rides on the upper surface of the slider 18 along the inclined surface 53, and when the IC card 3 is further inserted, the leading end is positioned between the light emitting element and the light receiving element of the first card sensor 11. Pass through. A card arrival signal is output by this passage, and based on the signal, the drive motor 7 starts to rotate in the direction of inserting the IC card 3, and the rotational force is transmitted to the roller pad 10 via the bevel gears 8 and 9. , Roller pad 10 and pressing roller 19
And are rotating in the direction of inserting the IC card 3 and waiting for the arrival of the IC card 3. When the IC card 3 is further inserted, the tip portion thereof is sandwiched between the roller pad 10 and the pressing roller 19 as shown in FIG. 12, and the IC card 3 is automatically inserted from now on. The IC card 3 is sandwiched between the roller pad 10 and the pressing roller 11 so that the lower plate 1
It is pinched in a state of being separated from 6 and floating in a substantially intermediate position of the card insertion space 33. This is because even if the entire IC card 3 is curved and there is a difference in height between the periphery of the IC card 3 and the module 41, the periphery of the IC card 3 is floated and only the module 41 is connected to the slider 18. Contact 2
By sandwiching the card with the card 5, the adverse effect caused by the curl of the IC card 3 is eliminated, and the contact 25 makes the module 41
The contact terminal pattern 43 is appropriately contacted. When the IC card 3 is pushed further inward by the rotation of the roller pad 10 and the pressing roller 19, the leading end of the IC card 3 comes into contact with the card contact portion 27 of the mover 5, and the IC card 3 is pushed in continuously. Will move the mover 5 together. With this movement, the roller 31 separates from the upper horizontal portion 23a of the guide groove 23 and reaches the lower horizontal portion 23b through the inclined portion 23c as shown in FIG. By moving the roller 31 in this manner, the moving element 5 descends while moving to the far side, whereby the contact element 25 comes into contact with the contact terminal pattern 43 of the IC card 3. As described above, the IC card 3 is regulated in the width direction within the card insertion space 33 by the cooperation of the leaf spring 34 and the card receiving portion 36. To contact. Due to this contact, the contact 25 is pressed and deformed without difficulty as shown by a dotted line in FIG. The position of the IC card 3 shown by the one-dot chain line in FIG. 1 is its loading position. When this position is reached, the optical path between the light emitting element and the light receiving element in the second card sensor 12 is cut off by the tip of the IC card 3, whereby a card arrival signal is output from the second card sensor 12 and the signal is output. , The rotation of the drive motor 7 is stopped, and the loading operation of the IC card 3 ends. As shown in FIG. 12, the roller pad 10
The card clamping force between the pressure roller 19 and the pressing roller 19 is
Is designed to be larger than the tensile force in the extended state, the IC card 3 is held at the loading position without being pulled back when the drive motor 7 is stopped as described above. In this state, reading or writing of information is performed on the IC card 3. Next, the eject operation will be described. When the IC card 3 is ejected from the card reader / writer, an AND command and an ejection command signal from a control unit (not shown) and a card presence signal for detecting that the IC card 3 is at the loading position by the second card sensor 12 are included. As a result, the drive motor 7 rotates in the reverse direction. As a result, the roller pad 10 and the pressing roller 19 are also rotated in reverse, and the IC card 3 is pushed back to the card entrance 52 side. The drive motor 7 is instructed to energize the rear end of the IC card 3 until it sufficiently passes through the roller pad 10. When the energization of the drive motor 7 is interrupted, the rotation of the roller pad 10 is stopped. . When the rotation of the roller pad 10 is stopped, the rear end of the IC card 3 is already separated from between the roller pad 10 and the pressing roller 19,
The leading end of the IC card 3 protrudes from the card entrance 52, and the ejecting operation is terminated by removing the IC card 3 with the protruding portion sandwiched between fingers. The IC card reader / writer according to the embodiment of the present invention has the loading mechanism and the eject mechanism as described above, but in addition to this, it also has a card forced ejection mechanism. When the IC card 3 is in the reader / writer, the IC card 3 is automatically ejected when the IC card 3 is in the reader / writer and the power supply to the drive motor 7 is stopped for some reason. Roller pad 10
This is for forcibly ejecting the IC card 3 from the card inlet / outlet 52 when it is still sandwiched between the pressing roller 19 and the pressing roller 19. Next, the card forced ejection mechanism will be described. As shown in FIG. 1, the card take-out bar 13 is arranged along the inserting direction X of the IC card 3, and its base end side (front plate 2 side) has a slightly larger diameter as shown in FIGS. Knob portion 54 is provided, and the tip of a jig such as a screwdriver is inserted into the front end surface of the knob portion 54.
A groove 55 having a shape is formed. A male screw 56 is provided slightly behind the knob 54, while a bar support 57 is projected from the chassis 1 immediately behind the front plate 2, and the male screw 56 is screwed into a through hole thereof. A mating female screw is formed. A stop ring 5 is provided in the axial direction of the bar 13.
8 and a stop washer 59 is fixed to the tip. This stop ring 58 and stop washer 5
9, a coil spring 60 and a card hook 61 are interposed.
Is urged toward the stop washer 59 side by the elastic force of. As shown in FIG. 14, the card hook 61 has a hook portion 61a having a substantially U-shaped side surface and a hook portion 6a.
1a, and a bar penetrating portion 61b provided at the upper part of 1a. The vertical portion of the hook portion 61a is slightly narrowed, and this portion is the slide groove 2 of the chassis 1.
1, the card hook 61 is prevented from falling out of the chassis 1. As shown in FIGS. 1 and 16,
A stopper plate 62 is fixed to the chassis 1 near the rear end of the slide groove 21. FIG. 1 shows a state when the card forced ejection mechanism is not used. At this time, the card removal bar 13 is pushed in, the coil spring 60 is compressed between the retaining ring 58 and the card hook 61, and the bar 13
Is supported by screwing a male screw 56 to a bar support 57, while the distal end of the bar 13 is supported by a card hook 61. The card hook 61 is on standby in a state in which the card hook 61 is in contact with the stopper plate 62 due to the elastic force generated by the compression of the coil spring 60. IC
When the card 3 is pushed into the loading position, FIG.
As shown in FIG. 5, the tip of the IC card 3 has a card hook 6
1, and is opposed to the hook portion 61a. When the bar 13 is set in the predetermined position as described above, the knob portion 54 of the bar 13 is slightly (about 12 mm) deeper than the front surface of the front plate 2 as shown in FIG. A plug 15 is elastically pushed into the front portion of the through hole 4 to close the through hole 14. The front plate 2 is formed of a synthetic resin and is electrically insulating, but the card take-out bar 13 is made of metal and has conductivity. So bar 1
If the end surface of the third member 3 is flush with or protrudes from the front plate 2, the static electricity flows to the chassis 1 through the bar 13 when the member bearing the static electricity contacts the end of the bar 13.
At this time, if the IC card 3 is loaded in the reader / writer, there is a concern that noise may occur when reading or writing information due to the static electricity. In this embodiment, in consideration of this point, the bar 13
When the is set, the base end thereof is disposed at a place deep in the through hole 14, and the through hole 14 has a structure closed by an electrically insulating plug 15. When the IC card 3 is forcibly taken out from the reader / writer, the stopper 15 is first pulled out from the through hole 14 as shown in FIG. Then, the tip of a jig such as a driver is inserted into the through hole 14 and the card ejecting bar 13 is rotated to remove the bar 13 from the bar supporting member 57. Then, the bar 13 and the card hook 61 are momentarily separated from the stopper plate 62 by the repulsive force of the coil spring 60, and the knob 54 of the bar 13 projects from the front plate 2 as shown in the figure. In this state, if the bar 13 is pulled forward with the knob 54, the card hook 61 comes into contact with the front end of the IC card 3, and the bar 13 is further pulled to rotate the roller pad 10 and the pressing roller 19 in reverse. The card 3 can be forcibly ejected from the card entrance 52. When the IC card 3 is completely discharged, the knob portion 54 of the bar 13 is pushed into the through hole 14 again and the male screw 56 is inserted.
The bar 13 is supported between the bar support 57 and the card hook 61 as shown in FIG. In the above embodiment, the guide member is provided with the groove-shaped guide portion, but the present invention is not limited to this.
For example, a guide portion having a predetermined shape can be formed on the end surface of the guide member. In the above embodiment, the roller is used as the projection protruding from the side surface of the moving element in order to minimize the resistance when the IC card is inserted. However, a pin or a ball is used instead of the roller. Good. Further, in the above-described embodiment, two protrusions are provided on each side surface of the moving element, but the present invention is not limited to this. For example, two protrusions are provided on one side surface. It is also possible to provide a three-point support structure by providing the protrusions at intervals and by providing one protrusion at the intermediate position between the two protrusions on the other side surface. Furthermore, in the above-mentioned embodiment, the tip end of the IC card is received by the card contact surface, but about two vertically extending protrusions are formed on the card contacting portion of the mover. If you try to receive the tip of the IC card with
The sliding resistance with the C card is further reduced. As described above, according to the present invention, the card receiving portion is provided so as to project along the card inserting direction, and the elastic member is provided so as to face the card receiving portion through the card inserting space. With the elastic member, the plurality of contacts are brought into contact with the contact terminal patterns while the IC card is elastically biased toward the card receiving portion. Therefore, the contact and the contact terminal pattern can be aligned in position, and the contact size can be reduced even if the module size is reduced due to the mechanical strength (the contact pitch is narrowed accordingly). The contact between the contact pattern and the contact terminal pattern is accurately performed, information is appropriately written in and read from the IC card, and reliability is improved. Further, as shown in FIG. 13, the contact terminal pattern is installed at a position deviated to one side from the center line along the card insertion direction of the IC card, and the one closer to the contact terminal pattern of the IC card. If the side edge is configured to contact the card receiving portion, the contact terminal pattern becomes closer to the card receiving portion serving as the reference wall, so that the contact between the contactor and the contact terminal pattern becomes more accurate. It has the features of .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining an IC card reader / writer according to an embodiment of the present invention, and is a plan view of a reader / writer and an IC card before card insertion. FIG. 2 is a front view of a reader / writer. FIG. 3 is a front view of the reader / writer with the plug removed. FIG. 4 is a bottom view of the reader / writer. FIG. 5 is an exploded perspective view of a main part of the reader / writer. FIG. 6 is a plan view of a mover. FIG. 7 is a sectional view of a moving element. FIG. 8 is a partial cross-sectional view of the IC card. FIG. 9 is an enlarged sectional view of a module part of the IC card. FIG. 10 is a side view for explaining a position of a moving element before an IC card is inserted. FIG. 11 is a side view for explaining a position of a moving element when an IC card is inserted. FIG. 12 is a partial side view showing a state where an IC card is sandwiched between a roller pad and a pressing roller. FIG. 13 is a partial plan view showing a state where the position of the IC card is regulated between the leaf spring and the card receiving portion. FIG. 14 is a perspective view of a carriage. FIG. 15 is a partial cross-sectional view showing an opposed state of the IC card and the card hook. FIG. 16 is a plan view of the reader / writer for explaining an IC card reader / writer according to the embodiment of the present invention and illustrating a state where an IC card is forcibly taken out. FIG. 17 is a view for explaining a conventional IC card reader / writer, and is a cross-sectional view showing a state before an IC card is inserted. FIG. 18 is a view for explaining a conventional IC card reader / writer, and is a cross-sectional view showing a state where an IC card is being inserted. FIG. 19 is a diagram for explaining a conventional IC card reader / writer, and is a cross-sectional view showing a state where an IC card is at a loading position. [Explanation of symbols] 3 IC card 25 Contact 33 Card insertion space 34 Leaf spring 36 Card receiving portion 41 Module 43 Contact terminal pattern 46 IC chip X IC card insertion direction

Claims (1)

(1) A contact terminal pattern of an IC card is divided into a plurality of pieces in a direction orthogonal to the card insertion direction, and a plurality of contacts are arranged in a direction orthogonal to the card insertion direction corresponding to the contact terminal pattern. In an IC card reader / writer, each of which is provided with a plurality of contacts respectively contacting the contact terminal pattern to write or read information to or from an IC card, wherein a card receiving portion is provided in a protruding manner along the card insertion direction. An elastic member is installed so as to face the card receiving portion through the card insertion space, and the plurality of contacts are contacted with the IC card elastically biased toward the card receiving portion by the elastic member. IC card reader / writer characterized in that it is in contact with each terminal pattern (2) In the claim (1), the contact terminal pattern is installed at a position deviated to one side from a center line along the card insertion direction of the IC card, and the contact terminal of the IC card. An IC card reader / writer characterized in that a side edge closer to the pattern is configured to come into contact with the card receiving portion.