JP3083150B2 - Card reader / writer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card reader / writer such as an IC card reader / writer, and more particularly to a card reader / writer that can be made thinner and smaller.

[Related Art] In a conventional IC card reader / writer, a card support is fixed in a case main body, and a carriage is arranged above the card support at a predetermined interval. The carriage is slidable in the card insertion direction and vertically movable in a direction perpendicular to the card insertion direction, and the projection where the tip of the IC card contacts the inner surface of the tip of the carriage faces downward. It is protruding.

When the IC card is inserted along the card support, the tip of the IC card comes into contact with the projection of the carriage waiting at the home position, and the card is inserted by further inserting the IC card. Descend while sliding in the direction. And when the IC card is inserted to the predetermined position, the carriage is in the lowest position,
Contact pins provided on the carriage come into contact with the terminals of the IC card.

When the IC card is ejected, the carriage returns to the home position side and rises at the same time as the ejection operation, so that the contact pin is separated from the terminal portion.

[Problem to be Solved by the Invention] By the way, the conventional card reader / writer is, as described above,
A projection is formed on the inner surface of the leading end of the carriage so that the leading end of the IC card is in contact with the leading end of the IC card. With the insertion of the IC card, the carriage is lowered toward the card support. Therefore, in order to prevent the protrusion from hitting the card support when descending, a penetrating portion is formed in a part of the card support, and the protrusion is formed between the card support and a bottom plate disposed below the card support. It is necessary to provide a gap for accommodating the tip. This bottom plate originally covers the lower surface of the card support, and has approximately the same size as the card support. Therefore, as described above, a uniform gap is provided between the card support and the bottom plate. Because it is formed, there is a lot of wasted space.

For this reason, the total height of the card reader / writer is increased, which is an obstacle to thinning and miniaturization.

SUMMARY OF THE INVENTION An object of the present invention is to provide a card reader / writer which solves the above-mentioned drawbacks of the prior art and can be made thinner and smaller.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention relates to a flat portion slidingly contacting a case main body, and a leading end portion of a card protruding upward from the flat portion and abutting, for example, a contact portion described later. An abutting portion such as a rib and a carriage moving portion such as a carriage pulling portion, which projects upward from the flat portion and moves the carriage by sliding contact with the carriage, are provided integrally, and can be moved in the card insertion direction. And a contact member fixed above the slide member so as to protrude toward the slide member, and an engagement portion such as a first pin described below slidingly contacting the carriage moving portion is provided. The main body has at least two protrusions such as first to third pins, for example, which will be described later, along the card insertion direction on the side surface of the main body, and descends diagonally along the card insertion direction And carriage, the protruding portions and a plurality of, for example, first to third below that engage
A guide portion, such as a guide portion, and a carriage guide having an opening adjacent to the guide portion and opening toward one flat surface such as an upper surface to insert the protruding portion from the flat surface side. The carriage is movably arranged on the carriage guide, and the card is placed on the flat portion of the slide member and inserted, so that the leading end of the card contacts the contact portion, and the slide member is moved in the card insertion direction. The carriage is moved obliquely with respect to the slide member while sliding the carriage moving portion of the slide member with the engagement portion of the carriage, and contact pins are inserted into the terminal portions of the card placed on the flat surface. It is characterized by being configured to make elastic contact.

[Operation] Since the slide plate is provided with the contact portion protruding upward as described above, it is not necessary to form a space between the card support and the bottom plate as in the related art. On the other hand, since there is a relatively large amount of space above the slide plate, providing a contact portion on the slide plate does not take up unnecessary space.

Because of this, the thickness of the card reader / writer has been reduced,
The size can be reduced.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an IC card reader / writer according to an embodiment, FIG. 2 is a plan view of the IC card reader / writer excluding some upper parts, FIG. 3 is a front view of the IC card reader / writer, and FIG. FIG. 4 is a bottom view of the IC card reader / writer with the bottom plate removed.

As shown in FIG. 1, an IC card reader / writer 1 includes a case main body 2, a bottom plate 3 made of, for example, an aluminum plate disposed on the bottom surface of the case main body 2, and a case disposed on the front side of the case main body 2. It is mainly composed of the front 4.

Near the lower part of the case front 4 is a card insertion slot 5
Is formed, and an IC card 6 is inserted through the card insertion slot 5.
Can be manually inserted. A recess 7 is formed in the center of the front of the case front 4 for facilitating insertion and removal of the IC card 6.

The IC card 6 has an IC chip, a printed circuit board (both not shown), and a terminal portion 8 exposed on the upper surface.

As shown in FIG. 2, the case main body 2 includes a connector 9 for connection to an external control device (for example, a personal computer), a printed circuit board 10, a carriage 11 having contact pins mounted thereon, a plunger 12, a microswitch. 13, a lock lever 14, a hook drive 15 and a hook 16 are mounted.

As shown in FIGS. 2 and 3, inside the case front 4, there is provided a shutter 17 which is urged to rotate so as to always close the card insertion slot 5, and an inserted IC.
A pressing pin 18 for forcibly ejecting the card 6 is incorporated. The front end of the hook 16 is the case front 4.
And extends to the card insertion slot 5.

As shown in FIG. 4, a slide plate 19 is disposed on the bottom of the case body 2 so as to be slidable in the direction of the arrow. The IC card 6 is placed near the reference side wall 21 of the case body 2 and on the side opposite to the body and near the card insertion slot 5.
A leaf spring 20 for elastically energizing is disposed.

FIG. 5 is a bottom view of the lock lever 14. As shown in the drawing, the lock lever 14 has a substantially L-shaped planar shape, and a through hole 22 is formed near the L-shaped bent portion. When the pin 23 shown in FIG. 2 is inserted through the through hole 22, the lock lever 14 is rotatably supported. One end of the lock lever 14 has a hook driving body 15 described later.
And a stop portion 24 for engaging with the stopper. Also,
At the other end of the lock lever 14, a square hole 26 through which the drive pin 25 of the plunger 12 is inserted and a pressing portion 28 for driving the detection end 27 of the microswitch 13 are formed.

6 and 7 are a side view and a plan view of the hook driving body 15. FIG.

The hook driving body 15 includes a first side wall 29, a second side wall 30 facing the first side wall 29, a connecting side wall 31, connecting the first side wall 29 and the second side wall 30, and connecting bottom walls 32, 33. It is composed of

As shown in FIG. 6, a hook drive slope 34 and a hook drive slope are provided on the inner surface of the tip of the first side wall 29.
A facing inclined portion 35 facing at a predetermined interval from 34, and a locking portion extending in the horizontal direction continuously with the lower end of the facing inclined portion 35
36 are formed.

A trapezoidal portion 37 protruding inward is formed on the inner surface of the tip of the second side wall 30, as shown in FIG.

As shown in FIG. 8 and FIG.
A concave portion 39 into which a support pin 38 projecting horizontally from the case body 2 is inserted, and a closing portion 40 for blocking the card insertion slot 5.
And a pin 41 extending toward the hook driving body 15. The hook 16 is rotatably supported on the case body 2 by the support pins 38.

FIG. 10 and FIG. 11 are a plan view and a side view of the carriage 11, respectively. The carriage 11 is the carriage body 42.
A plurality of contact pins 43 protrude downward from. Further, a first pin 44, a second pin 45, and a third pin 46 project from the front side, the middle position, and the rear side of both sides of the carriage body 42, respectively. A spring hook 47 is formed on one of the second pins 45.

As shown in FIG. 2, the carriage 11 is movably supported by two carriage guides 48 protruding from the case body 2. As shown in FIGS. 12 and 13, the carriage guide 48
It has a first guide portion 49 for guiding the pin 44, a second interior 50 for guiding the second pin 45, and a third guide portion 51 for guiding the third pin 46. These guides 49, 5
0 and 51 are similarly slightly inclined in a downward arc. Then, as shown in FIG. 13, the first pin is inserted through the end of the first guide portion 49 and the openings 80, 80 provided between the second guide portion 50 and the third guide portion 51 and opened toward the upper surface. 44 and 3rd
The pin 46 is inserted, the first pin 44 is provided by the lower surface of the first guide 49, the second pin 45 is provided by the upper surface of the second guide 50, and the third pin 46 is provided by the third guide 51. Each is guided by the lower surface.

As shown in FIG. 2, an opening 52 for allowing the movement of the contact pin 43 is formed inside the carriage guide 48.

FIG. 14 is a plan view of the slide plate 19, and FIG.
FIG. 16 is an enlarged cross-sectional view taken along line A-B of FIG. 14.

As shown in FIG. 14, the slide plate 19 has a flat portion 53 on which the IC card 6 is placed. On both sides of the flat portion 53, the slide plate 19 is A projecting piece 54 for moving in the horizontal direction is formed. Also the flat part 53
A contact rib with which the tip of IC card 6 contacts
On the upper end of the contact rib 55, a chamfer 55a is formed to securely guide the tip of the IC card 6 onto the flat portion 53.
(See Fig. 16). Further, a carriage pulling portion 57 and a spring hooking portion 56 are provided upward from the contact rib 55.

17 and 18 are a plan view and a side view of the leaf spring 20. FIG. The leaf spring 20 has a substantially V-shaped planar shape, and is composed of a flat base end 58 and a flat free end 59, and a bent portion 60 is provided at the tip of the free end 59. Is formed. An arc-shaped notch 61 is provided at the center upper end of the base end 58.

As shown in FIG. 4, the leaf spring 20 is disposed so that the base end portion 58 contacts the side wall of the case body 2.
Then, as shown in FIG. 18, the lower edge of the base end portion 58 is placed on the horizontal rib 62 provided on the side wall of the case body 2, and the protrusion 63
Is inserted into the notch 61, thereby positioning the leaf spring 20 in the vertical and horizontal directions with respect to the side wall of the case body 2.

FIG. 19 and FIG. 20 are a plan view and a side view of the bottom plate 3. The bottom plate 3 is made of, for example, a metal plate of aluminum or the like, and has holes 65 for engaging the case body 2 on both side walls 64. On the case front 4 side of the bottom plate 3, a push piece 66 that engages with the case front 4 projects in a state of being bent upward by one step.

In the case of FIG. 19, the pressing piece 66 is provided over substantially the entire width. However, as shown in FIG. 20, the pressing piece 66 can be divided into a plurality of pieces and provided, for example, at the center and both sides. .

FIG. 22 is a rear view of the case front 4, and FIG. 23 is a sectional view taken along line CC of FIG.

As shown in FIG. 22, a card insertion slot 5 is formed near the lower portion of the case front 4, and a pin holding hole 67 for inserting the pressing pin 18 slightly above the card insertion slot 5 is provided.
Are formed. A groove-shaped engaging portion having substantially the same length as the card insertion slot 5 is provided below the card insertion slot 5.
68 are formed. When assembling the IC card reader / writer, the pressing piece 66 of the bottom plate 3 is
Is inserted into.

Since this case front 4 is formed of synthetic resin,
Due to the thickness of each part, there is a concern that the entire case front 4 or the vicinity of the card insertion slot 5 is deformed into a mountain shape, which may hinder the card insertion and removal. In order to solve this, the deformation is mechanically corrected by inserting and engaging the pressing piece 66 of the bottom plate 3 with the engaging portion 68 of the case front 4.

FIG. 24 is a view showing a modification of the engaging portion 68. In this case, a step-like engaging portion 68 is formed, and the bottom plate 3 is placed on the engaging portion 68.
The pressing piece 66 is forcibly pressed.

FIG. 25 and FIG. 26 are cross-sectional views showing the relationship between the bottom plate 3 and the printed circuit board 10. As shown in these figures,
An electrode 69 for grounding is formed on the printed circuit board 10, while
A through hole 70 is formed in the case body 2 at a position facing the electrode 69. A conductive spring 71 is inserted into the through hole 70, the bottom plate 3 and the electrode 69 are electrically connected, and the bottom plate 3 is grounded via the printed circuit board 10. If static electricity is accumulated on the bottom plate 3 for some reason, noise may be generated when an IC card is inserted into a reader / writer. For this purpose, the bottom plate 3 is grounded to avoid the adverse effects of static electricity.

Returning to FIG. 2 again, reference numeral 72 denotes a coil spring interposed between the main body of the plunger 12 and the drive pin 25, and constantly resiliently biases the drive pin 25 in a direction away from the plunger 12.

Reference numeral 73 in the figure denotes a carriage return spring, which is stretched between the spring hook 47 of the carriage 11 and a spring hook 74 projecting from the case body 2. The carriage 11 is always elastically urged toward the home position by the carriage return spring 73.

Reference numeral 75 denotes a slide plate return spring which is stretched between a spring hook 56 of the slide plate 19 and a spring hook 76 projecting from the case body 2. With this slide plate return spring 75,
The slide plate 19 is always elastically biased toward the case front 4.

The structure of the IC card reader / writer is as described above, and the operation principle thereof will be described next.

Before inserting the IC card 6 into the card reader / writer, the card insertion slot 5 formed in the case front 4 is closed by the shutter 17 as shown in FIG. Blocking intrusion.

As shown in FIG. 2, the carriage 11 is waiting at the home position by the carriage return spring 73. Then, as shown in FIG. 12, each pin of the carriage 11
44, 45, 46 are located in the upper part of the guides 49, 50, 51, so that the carriage 11 is in the upper position.

Further, as shown in FIG. 9, the pin portion 41 of the hook 16 is locked by the locking portion 36 of the hook driving body 15, and the closing portion 40 is held at a position retracted from the card insertion slot 5.

As shown in FIG. 27, the plunger 12 is not energized (not pulled), and thus the coil spring
Due to the spring force of 72, the drive pin 25 is in contact with the left edge 26b of the square hole 26 in the drawing. Square hole 26 as described later
Is designed to be slightly larger than the diameter of the drive pin 25, so that the drive pin 25 is
26b, the drive pin 25 and the right edge 26a
Is formed between them.

At this time, the pressing portion 28 of the lock lever 14 is in contact with the detection end 27, but the micro switch 13 is not turned on.

Also, in the state of the lock lever 14, the stopper 24
Departs from the tip of the second side wall 30 and rides on the trapezoid 37. As described above, the hook driving body 15 is not engaged with the locking lever 14, and the spring hook 56 of the slide plate 19 comes into contact with the connecting bottom wall 32 of the hook driving body 15, and the slide plate return spring
It is pulled at 75 and is close to the case front 4.
As described above, the pin portion 41 of the hook 16 is engaged with the locking portion 36 of the hook driving body 15 (see FIG. 9).

Further, as shown in FIG. 4, the slide plate 19 is on standby at the case front 4 side by the pulling force of the slide plate return spring 75. When the slide plate 19 is in this standby position, the free end 20 of the leaf spring 20 is
It is in contact with 77.

In this state, as shown in FIG. 1, the IC card 6 is inserted by hand from the card insertion slot 5 with the terminal 8 exposed. The shutter 17 is automatically pushed open by the insertion force of the IC card 6, and the IC card 6 is inserted while being pushed to the reference side wall 21 side by the pressing force of the leaf spring 20.

Since the IC card 6 is inserted by hand, it is not always inserted perpendicularly to the card insertion slot 5 and may be inserted obliquely to the card insertion slot 5 in some cases. When inserted in such an oblique state, the free end 59 of the leaf spring 20 is excessively pressed by the tip of the IC card 6 and is permanently deformed, and the pressing force on the reference side wall 21 decreases. When severe, the pressing force becomes zero. This free end
In order to prevent deformation of 59, as shown in FIG.
A deformation preventing portion 78 is arranged between the base end portion 58 and the free end portion 59. In the case of this embodiment, the deformation preventing portion 78 is formed integrally with the case main body 2.

The IC card 6 is inserted along the flat portion 53 of the slide plate 19, and the leading end of the IC card 6 passes through the gap between the contact pin 43 of the carriage 11 and the slide plate 19 which are standing by at the upper position. It contacts the contact rib 55 as shown in FIG. As shown in FIG. 14, since the carriage pulling portion 57 is provided in the middle of the contact rib 55, if the IC card 6
Is curved along the width direction (the direction perpendicular to the insertion direction), it is forcibly pressed by the horizontal portion 79 corresponding to the base of the carriage pulling portion 57 as shown in FIG. Deformation is corrected to some extent.

With the tip of the IC card 6 in contact with the contact rib 55, the IC
When the card 6 is further inserted, the slide plate 19 moves together with the IC card 6 against the tensile force of the slide plate return spring 75.

FIG. 29 is a view showing the operation of the slide plate 19 and the carriage 11 when the IC card 6 is inserted. In this figure, the solid line indicates the positional relationship in the standby state, the dotted line indicates the state in the middle of insertion,
The dashed line indicates the positional relationship in the insertion completed state.

As shown in FIG.
The carriage pulling portion 57 is separated from the first pin 44 of the carriage 11. When the slide plate 19 moves as described above, the carriage pulling portion 57 comes into contact with the first pin 44 as shown by a broken line. Further movement of the slide plate 19 causes the carriage 11 to move in the insertion direction of the IC card 6 with the carriage pulling portion 57 kept in contact with the first pin 44.

Thus, the carriage 11 descends along the guides 49, 50, 51 as shown in FIG. 13 while moving in the insertion direction of the IC card 6. As the carriage 11 is lowered, the respective contact pins 43 resiliently contact the terminal portions 8 of the IC card 6 on the slide plate 19.

Also, as described above, the carriage pulling portion of the slide plate 19 is used.
The carriage 57 moves, and the carriage pulling portion 57 contacts the connection side wall 31 of the hook driving body 15 near the end of the movement. Further movement of the slide plate 19 causes the hook driving body 15 to move slightly away from the case front 4. On the other hand, the lock lever 14 is driven by the coil spring 72 via the drive pin 25.
As a result, as shown by an arrow in FIG. 27, it is always urged to rotate counterclockwise. As a result, the hook driving body 15 moves as described above, so that the locking lever 14 rotates in the direction of the arrow, and the stopper step 24 engages with the tip of the second side wall 30 of the hook driving body 15. By this engagement,
The hook driving body 15 cannot return even if the pulling force of the slide plate return spring 75 acts, and maintains its position. When the hook driving body 15 retreats in this way, as shown in FIG. 8, the pin portion 41 of the hook 16 is disengaged from the locking portion 36 and rises on the hook driving inclined portion 34, and finally, the hook driving It is located above the inclined portion 34. Then, the closing part 40 of the hook 16
Shuts off the card insertion slot 5 and prevents the IC card 6 from coming out. That is, the IC card 6 is
The state is sandwiched between 40 and the contact rib 55 of the slide plate 19.

Further, the rotation of the lock lever 14 causes the pressing portion 28 to rotate.
Moves in a direction away from the detection end 27 of the microswitch 13, whereby a signal indicating that the IC card has been set is output from the microswitch 13.

With the IC card 6 set in a predetermined position in this way, the external device connected via the connector 9 and the IC
A signal is given to the card 6.

When the transmission of the signal ends, the plunger 12 is instantaneously energized based on the end signal from the external device. Then the
As shown in FIG. 28, the drive pin 25 is pulled toward the plunger 12, and the lock lever 14 rotates clockwise. By this pivoting operation, the stopper step portion 24 comes off the tip of the second side wall 30. Then the hook driver 15 loses its support,
The hook driving body 15 moves to the card insertion slot 5 side by the tensile force of the slide plate return spring 75. With the movement (forward movement) of the hook driving body 15, the hook 16 rotates while the pin portion 41 of the hook 16 descends along the hook driving inclined portion 34 as shown in FIG. When the driving body 15 moves forward, the pin portion 41 is inserted below the locking portion 36, and the open state of the hook 16 is maintained.

Also, the slide plate 19 moves in the return direction due to the tensile force of the slide plate return spring 75, and the carriage is accordingly moved.
11 returns to the home position while leaving the IC card 6. Furthermore, as the slide plate 19 moves, the IC card 6
Is ejected so as to partially protrude from the card insertion slot 5.
The IC card 6 having this protruding portion may be pulled out of the card reader / writer 1.

FIG. 30 to FIG. 35 are diagrams for explaining the relationship between the plunger gap of the plunger 12 and various loads and suction forces.

As shown in FIG. 2, a coil spring 72 is hung on the drive pin 25 of the plunger 12, and a pressing portion of the lock lever 14 is provided.
28 is adapted to engage with the microswitch 12,
Further, the lock lever 14 is adapted to engage with the hook driver 15 (see FIG. 28). Therefore, plunger 12
When the drive pin 25 is moved by energizing the coil spring 72, the coil spring 72, the detection end 27 (leaf spring), and the hook driving body 15 generate resistance (load).

In FIGS. 30 to 35, the line a is a characteristic line of the attraction force of the plunger 12, and the attraction force increases sharply as the plunger gap of the plunger 12 becomes narrower. Line b is a microswitch
A point b 'in the load characteristic line for operating the switch 13 is a switch inversion region. The line c is a load characteristic line for compressing the coil spring 72, and the line d is a hook driver
This is a load characteristic line for moving away from the hook drive unit 15 at the point d ', where the stop step portion 24 moves away from the hook driving unit 15. Line e is a line indicating the card set position, and line f is (FIG. 31, FIG.
FIG. 35 shows a total load characteristic line of the microswitch 13, the coil spring 72, and the stopper 24.

FIG. 30 shows a case where the reversal area b 'of the microswitch 13 is located on the card set position e side with respect to the movement start point d' of the stopper step 24, that is, the stopper step 24 is separated from the hook driving body 15. This shows the positional relationship between the loads when the micro switch 13 is turned over after the start of movement. FIG. 31 shows the relationship between the total load characteristic line f of each load and the suction force characteristic line a of the plunger 12.

FIG. 32 shows a case where the reversal area b 'of the microswitch 13 is positioned on the movement start point d' of the stopper section 24, that is, the reversal operation of the microswitch 13 and the start of movement of the microswitch 13 are performed simultaneously. The positional relationship of each load in such a case is shown. FIG. 33 shows the relationship between the total load characteristic line f of each load and the suction force characteristic line a of the plunger 12.

As described above, the operation of the plunger 12 drives the microswitch 13 and moves the lock lever 14 away from the hook driving body 15, but at any time after the IC card 6 is set. Micro switch 13
At which point the lock lever 14 is driven is in principle arbitrary. But the microswitch
When the operating points of the lock lever 13 and the lock lever 14 are in the relationship as shown in FIGS. 30 and 32, a part of the total load characteristic line f is changed to the attraction force characteristic line of the plunger 12 as shown in FIGS. 31 and 33. It protrudes more than a. The fact that the total load characteristic line f protrudes in this way means that the plunger 12 cannot be driven reliably, and a plunger having a larger suction force is required, thereby increasing the size of the apparatus and increasing power consumption. In addition, the cost is increased.

On the other hand, in the present invention, as shown in FIG.
Of the micro switch 13 after the movement of the lock lever 14 is started. Then, as shown in FIG. 35, the total load characteristic line f is positioned below the attraction force characteristic line a of the plunger 12. The fact that the total load characteristic line f is located below the attractive force characteristic line a of the plunger 12 as described above means that the microswitch 13, the rock lever 14, and the coil spring 72 can be sufficiently driven by the plunger 12. Is shown. Therefore, operation reliability can be improved, miniaturization, power saving, and cost reduction can be achieved.

Although the case of the IC card has been described in the above embodiment,
The present invention is not limited to this. For example, the present invention can be applied to a card reader / writer for other cards such as a magnetic card and an optical card.

[Effects of the Invention] The present invention is configured as described above, and the slide plate is provided with an abutting portion protruding upward, so that a useless space is formed between the card support and the bottom plate as in the related art. No need to do. On the other hand, since a relatively large amount of space exists above the slide plate, providing a contact portion on the slide plate does not take up unnecessary space.

Because of this, the thickness of the card reader / writer has been reduced,
The size can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of an IC card reader / writer according to an embodiment of the present invention, FIG. 2 is a plan view of the IC card reader / writer excluding some upper parts, and FIG. FIG. 4 is a bottom view of the IC card reader / writer with the bottom plate removed, FIG. 5 is a bottom view of the lock lever, FIGS. 6 and 7 are side views of the hook driving body 15 FIGS. 8 and 9 are diagrams for explaining the operation of the hook driving body and hook, FIGS. 10 and 11 are plan and side views of the carriage, FIGS. 12 and FIG. 13 is a view for explaining the moving state of the carriage, FIG. 14 is a plan view of the slide plate, FIG. 15 is an enlarged cross-sectional view taken along line AA of FIG. 14, and FIG. FIG. 17 and FIG. 18 are an enlarged sectional view taken along the line BB, and FIG. 19 and 20 are a plan view and a side view of the bottom plate, FIG. 21 is a partial plan view showing a modified example of the bottom plate, FIG. 22 is a rear view of the case front, FIG. 22 is a cross-sectional view taken along the line CC, FIG. 24 is a side view showing a cross-section of a main part showing a modification of the case front, and FIGS. 25 and 26 are cross-sectional views showing the relationship between the bottom plate and the printed circuit board. Figure, Figure 27 shows the microswitch before inserting the IC card,
FIG. 28 is an explanatory view showing a state of a plunger, a lock lever and a hook driving body, FIG. 28 is a microswitch after an IC card is inserted,
FIG. 29 is an explanatory view showing the state of the plunger, the lock lever and the hook driving body, FIG. 29 is an explanatory view showing the operation of the slide plate and the carriage when the IC card is inserted, and FIGS. 30 to 35 are the plunge goats of the plunger. It is a figure for explaining the relation between a cap, various loads, and suction power. 1 ... IC card reader / writer, 2 ... case body, 3 ...
... bottom plate, 4 ... case front, 5 ... card insertion slot,
6 IC card, 9 Connector, 10 Printed circuit board, 11 Carrier, 12 Plunger, 13 Micro switch, 14 Lock lever, 15 Hook driver, 16 Hook, 19 ... slide plate, 20 ... leaf spring,
21 ... Reference wall, 24 ... Stopper step, 25 ... Drive pin, 26 ... Square hole, 27 ... Detection end, 28 ... Pressing part, 29 ...
First side wall, 30 Second side wall, 34 Hook driving inclined section, 36 Locking section, 40 Blocking section, 41 Pin section, 42
… Carriage body, 48 …… carriage guide part, 55 ……
Contact rib, 57… Carriage tension part, 58… Base end part, 59
… Free end, 62… Horizontal rib, 63… Protrusion, 73… Carriage return spring, 75… Slide plate return spring, 78…
Deformation prevention part, 79 ... Horizontal part.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-253490 (JP, A) JP-A-63-223991 (JP, A) JP-A-3-37785 (JP, A) JP-A-2- 12392 (JP, A) JP-A 1-133394 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06K 17/00 G06K 13/07

Claims (1)

(57) [Claims] The carriage is slid in contact with the case body, the contact portion protruding upward from the plane portion and contacting the leading end of the card, and slidingly contacting the carriage projecting upward from the flat portion. A carriage member that moves integrally with the carriage member; a slide member movable in the card insertion direction; and a contact pin disposed above the slide member and fixed to protrude toward the slide member side. An engagement portion for slidingly contacting the moving portion is provided, the carriage has at least two protrusions on a side surface of the main body along the card insertion direction, and a carriage that obliquely descends along the card insertion direction; A plurality of guide portions, and a carriage guide having an opening which is adjacent to the guide portion and is open toward one flat surface side and has an opening for inserting the protruding portion from the flat surface side, The carriage is movably disposed on the carriage guide of the slide member, and the card is placed on the flat portion of the slide member and inserted, whereby the leading end of the card contacts the contact portion, and the slide member is inserted in the card insertion direction. To lower the carriage obliquely with respect to the slide member while sliding the carriage moving portion of the slide member against the engagement portion of the carriage.
A card reader / writer, wherein a contact pin is resiliently contacted with a terminal portion of a card placed on a flat surface portion.