JPS5818697B2 - card reader - Google Patents

Description

[Detailed Description of the Invention] The present invention makes it possible to easily detect the presence or absence of a card in a so-called information processing device that stores or reads information on a card using magnetic properties, conductive properties, optical properties, etc. This invention relates to a card reader that has the function of

A single card entrance is provided in one of the information processing devices,
There is a type in which a card is inserted into this card slot, and when recording or reading is completed, the card is ejected from this card slot. It is useful for processing cards, commuter passes, etc.

- As mentioned above, card readers are often used as terminal devices for information processing, and the terminal processing is used to send or receive necessary processing signals to the main computer.

Many card readers have a single card entrance/exit.
In this type of card reader, the card is first inserted manually, but in the case of manual insertion, the insertion speed is undefined, so if the information recording/reading multi-element is close to the guard entrance, the effect will be directly on this element. Extends.

Therefore, the distance from the card entrance to the information recording/reading multi-element is longer than the card length, and a card feed roller is placed near the card entrance of this element. A method was devised in which the effect of manual feeding on the element was eliminated by using a roller to feed the element.

By the way, if the distance from the card entrance to the information recording/reading multi-element is increased in this way, the timing at which card feeding starts,
3. Recording/reading start time and card return start time
In addition to detecting the timing, it is necessary to constantly detect whether or not a card is in the device in order to keep the card feeding device in an operating state. In addition to the three detection elements, at least one detection element, specifically an element for detecting the presence or absence of a card, was absolutely necessary.

The present invention solves the problem of the above-mentioned conventional method by employing a structure that detects the presence or absence of a card by always being pressed by the card when the card is in the card reader. The purpose is to provide a card reader that eliminates the

According to this invention, since the detection member is always pressed by the card when the card is inserted, it is possible to completely omit a sensor for detecting the presence or absence of a card in the middle of the card path. , the number of detection element cylinders can be reduced accordingly.

below.

The invention will be explained in detail by means of illustrated embodiments.

1 to 3 show the case where the present invention is applied to a magnetic card reader.

The sieve plate 1 is a side wall plate that holds the entire device, and has holes for fitting other members such as columns.

A guide member 101 in which a reference groove 101a for guiding the sliding movement of the card 21 side end surface is drilled is fixed to the middle horizontal direction of the inner surface of the plate.

The sieve plate 2 is a side wall plate facing the sieve plate 1, and the guide member 101
A fitting hole is drilled in the same manner as in the above, and a spring plate 3 is fixedly installed at two places on the front and back of the middle part of the inner surface of the plate, and a pressing guide member 4 fixedly installed on the other end of the spring plate 3 is held horizontally. ing.

In the pressing guide member 4, a guide groove 4a corresponding to the reference groove 101a of the sieve plate 1 is drilled in the middle horizontal direction on the inner surface.

The sieve plate 1 and the sieve plate 2 sandwich three columns 5 and are fixedly installed with column screws 6, forming a box-shaped structure of the device.

The magnetic head block T includes a magnetic head 7c inside a block support 7a fixed to the sieve plate 1 and a block plate 7b.
The mounting position of the magnetic head 7c is as follows.
Accurately adjusted to test plate 1.

The feed rollers 8, 81 have roller shafts 8a.

A rubber rotary ring is fixedly attached to 81a, and the lower end of the rotary ring is in contact with the height of the card guide grooves 101a and 4a, and is provided at two locations: on the insertion slot side and directly below the magnetic head 1c.

Each roller shaft 13a. 81au, sieve plates 1, 2, and block plate 7b are fitted into and held in holes, and pulleys 9, 91 are fixedly provided at one shaft end of each.

The idle rollers 10, 100 similarly have a shaft 10a.

A rotary ring is fixedly attached to the shaft 100a, which is disposed opposite to each other under two feed rollers 8, 81, and the respective shafts 10a, 100a are fitted and held in the sieve plates 1, 2.

Further, a rubber pad roller 11 is fixed to the idle roller shaft 100a on the magnetic head side.

The front plate 12 and the rear plate 13 are rectangular plates that straddle and abut on the sieve plates 1 and 2, and have screws 12a and 13a, respectively.
It is fastened with.

On the front plate 12, a sulin) is placed at the height of the reference groove 101a.
12b is bored horizontally.

On the outer surface of the front plate 12, an upper member 14a of the insertion port is fixed in contact with the above-mentioned sulin 12b, and a lower member 15a of the insertion port is fixed on the lower edge. ) 12b, the upper gate member 14b is in contact with the upper edge of the upper gate member 14b,
Lower gate members 15b are fixedly provided in contact with the lower edges.

A cutout 14c is formed on the lower surface of the upper game N4b by cutting out a portion of the card 21 that faces the positioning embossed portion (projection) on the surface of the card 21.

The card slot E is formed by the upper member 14a and the lower member 15a, and the distance from the card slot E to the magnetic head 1c is set to be longer than the length of the card 21.

The card passage is formed by the slit 12b,
An actuator 81A of the switch S1 as a first detection element is disposed in the card path near the magnetic head 1c.

A switch S2 as a second detection element is fixed to the rear plate 13, and its 82 actuators are located at the end of the card path.

When the card 21 is not in the card passage, the actuator 82A is pushed by the detection member 4b fixed to the end of the pressing guide member 4 extending over the passage.

Note that the distance between the switch S1 and the switch S2 is set to be slightly shorter than the length of the card 21.

A motor 16 and a tension adjusting idler wheel 1T are fixed to the sieve plate 2, and a belt 18 made of polyester or the like is connected to a motor pulley 16a, an idler wheel 1T and two boobies I.
Both pulleys 9 and 91 are driven by the motor 16.

The entire device is covered with a bottom plate 19 and a cover 20.

The card 21 is still in both grooves 101 a on both sides. 4a, and is sandwiched between upper and lower rollers 8, 10, 81.degree. 100, and slides back and forth by friction.

(C) Well, when the card 21 is manually inserted from the card insertion slot E, the pressing guide member 4
1, it is removed towards the side of the card path.

This suppression guide member is entirely moved in parallel by the operation of both spring plates 3, and therefore, as shown in FIGS. 1 to 4, the actuator 82A of the switch S2
The detection member 4b that had been pressing the
As shown in the figure, this actuator 82A is released.

When the actuator 82A of the switch S2 is released, the motor 16, which had been stopped until now, starts rotating normally, and the inserted card 21 comes into pressure contact with the rollers 8, 81 driven by the motor 16. It is sent inward by the rollers 10, 100.

As the card 21 advances through the card path, when its tip reaches the position of the magnetic head 1c, the actuator 81A of the switch S1 is pressed.

The actuator 81A, which was in the released state, is pressed.

When the actuator 81A is pressed, the magnetic head 7
c is activated, and the magnetic record on the card 21 is read.

Note that the pressure of the card 21 against the actuator 81A is maintained even when the leading end of the card 21 reaches the end point of the card path.

When the card 21 advances further and its leading end reaches the paper fish in the card path, the actuator 82A of the switch S2, which is released from the detection member 4b, is pressed as shown in FIG.

child . When the actuator 82A is pressed, the motor 16 starts rotating in reverse.

When the motor 16 reverses, each roller 8,81°10
．． 100 rotates, reverses the card 21, and retreats it to the card entrance/exit E.

And during this time. actuator S of switch S2
2A and the actuator 81A of the switch S1 are sequentially released, and by releasing the actuator 81A, the operation of the magnetic head 7c is stopped.

Card 21 has retreated to card entrance/exit E.

When the card is removed from the card slot E, the pressing guide member 4 is released from the card 21, and the detection member 4 is released from the card 21.
b presses the actuator 82A of the switch S2 again.

In Figure i7, a light-emitting element 22a and a light-receiving element 22b are installed in place of the switch S1, and a light-emitting element 23a and a light-receiving element 23b are installed in place of the switch S2, and a detection member 4b is installed above and below the card passage. Instead, a case is shown in which a detection member 24 having a hole 24a for connecting the optical path is provided.In the present invention, in addition to a switch, an optical element or A magnetic element or the like can be used.

However, the actuator 82A of the switch S2 also plays the role of holding the reciprocating card 21 in the rollers 81, 100 in the event that it comes off the rollers 81, 100. When used, it is convenient to place the spring plate 25 at the end of the card path as shown in FIG.

FIG. 8 shows an example of a control circuit used in the seventh illustrated example of the present invention.

In the same figure, phototransistors 26 and 28 are shown at the corners (c).
The output signal from the
Each goes into a different shaping circuit and undergoes waveform shaping.

A part of the outputs of both shaping circuits are each NAND
to the two input terminals of the circuit 38, and to both inverters 34.
．． The output taken from between 35 and the inverter 36.
Part of the output from the 37 waveform shaping circuits is input to the two large output terminals of the NAND circuits 3902, respectively.

Note that the resistor 30.31 is the load resistance of the transistor 27.29.

Outputs A and B of both NAND circuits 38 and 39 are sent to a flip-flop circuit 42 constituted by NAND circuits 40 and 41, and the output signal of this flip-flop circuit 42 is converted into a control signal via inverters 43 and 44. A,
B is applied to the motor 16.

Incidentally, an integrating circuit composed of a resistor 45 and a capacitor 46 is installed on the input side of the NAND circuit 41, which delays the manual input.

Further, to the input terminal 41 of this circuit 41, a retransmission signal is inputted which is a signal to cause one more round trip for verification.

According to the control circuit configured in this way, for example, the switch S1. Input signal (St) from S2, (S2)
The control signals A and B are output as shown in FIG. 9, and the operation of the motor 16 is controlled as shown in FIG.

Now, when the card 21 is not inserted into the card insertion slot E, the signal (Sl) of the switch S1 is low, the signal (S2) of the switch S2 is high, and at this time, the control signals A and B are both low. Yes, motor 16 has stopped.

Next, when the card 21 is inserted into the card insertion slot E (time ■), the detection member 4b shifts and the signal (S2) becomes Low.
Since the signal (S□) is Low, the control signal B
Since the signal A is High and the signal A is Low, the motor 16 rotates normally and the card 21 is fed into the card passage.

The tip of the card 21 is the actuator 8 of the switch S1
When 1A is pressed (time ■), the signal (S,) goes High.
However, the state in which the control signal A is Low and the control signal B is High is maintained.

When the card 21 reaches the end point of the card path and the actuator 82A of the switch S2 is temporarily pressed (timing ■, ■), the control signal A temporarily becomes Low and the control signal B becomes High.
gh, the motor 16 is switched from normal rotation to reverse rotation.

Then, the guard 21 is now sent back toward the card insertion slot E.

When the actuator S1A of the switch S1 is released from the card 21 (timing ■), the signal (Sl) becomes Low, but the control signals A and B remain High, and the card 21 is removed from the card entrance E. When it is removed (time ■), the detection member 4b is restored and the signal (s2) becomes Hi.
gh, and since (S, ) is Low, both control signals A and B become Low, and the motor 16 stops.

In the above example, if microswitches or the like are used in place of the phototransistors 26 and 28, the respective switches may be connected to the output side of the inverters 35 and 37.

Note that the card feeding/control means in the present invention includes:
In addition to the above, other known formats can be used as desired.

In addition to directly controlling the motor, an electromagnetic clutch or the like may be provided between the motor and the pulley to control this.

As described above, according to the present invention, the card pressing guide member can also be used for card detection, thereby reducing the number of sensors, and detecting the presence or absence of a card regardless of the length of the card. Since the presence or absence of a card can be detected only by the width direction perpendicular to the card insertion direction, there are fewer errors in detection, and there are no restrictions on card reciprocation type or card passing type, so the range of application is wide. Effects such as spaciousness can be obtained.

[Brief explanation of drawings]

FIG. 1 is a plan view of a magnetic card reader showing a series of usage examples of the present invention, FIG. 2 is a sectional view of the same, FIG. 3 is a partial perspective view of the same, and FIGS. A partial plan view showing the operating mode of the detection member and the second detection element,
FIG. 1 is a partial perspective view of a magnetic card reader showing another application example of the present invention, FIG. 8 is a circuit diagram showing an example of a control circuit according to the present invention, and FIG. 9 is a line showing the generation status of control signals. 10 are circuit diagrams showing separate control circuits in the present invention. 4b...Detection member attached to the pressing guide member 4, Sl...Switch as the first detection element for card detection, S2...As the second detection element Switch, ■ is the card insertion, ■ is the recording/playback timing for previous, ■ is the recording/playback timing for double,
■ is retransmission type recording and playback timing, ■ is card ejection,
A is the inversion of the output of the NAND circuit 38, B is the output of the NAND circuit 39, and M is the card running direction (motor rotation direction).
represents.

Claims (1)

[Claims] 1. A reference guide member is fixedly provided on one side of the card running path, and a long pressing guide member biased by a spring that has the habit of advancing toward the card running path is installed on the other side of the card running path. A card reader is provided with a detection member that is operated by the displacement of the guide member, and is configured to detect that the card is on a travel path by the operation of the detection member.