JPS6217888Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for preventing reverse insertion of a magnetic card in a card reader, which has a simplified structure and can reduce the speed at which a magnetic card is inserted from a return slot and the speed at which the card pops out when the card is returned.

In recent years, various cards on which information is recorded, such as magnetic cards and punch cards, have come to be used for inputting information, and accordingly, card readers are becoming widely used in various fields.

For example, in magnetic card type public telephones, a commercially available magnetic card is used instead of coins, data on the number of calls is recorded in advance on the magnetic card, and the magnetic card is inserted into the slot. is stored in the card reader, and subtracted from the data on the magnetic card according to the actual number of calls. Based on this result, the remaining call frequency data is updated and recorded on the magnetic card and then ejected and returned. Once the magnetic card is used up, it is stored in the card reader. In this case, since the magnetic card moves into the card reader at high speed, it has the disadvantage that when it is returned, it pops out quickly and falls onto the floor. Also, if you insert the magnetic card incorrectly into the return slot, it may malfunction.
This may cause the card to jam.

The present invention was developed in view of the above-mentioned points, and a stopper is provided near the return opening in the card return passageway, and this stopper prevents the card from being inserted backwards from the return opening, and also prevents the card from popping out when returning the card. The present invention provides a structure for preventing reverse insertion of a magnetic card in a card reader that reduces speed.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a side sectional view showing an embodiment of the present invention in which a card reader equipped with a magnetic card reverse insertion prevention structure is applied to a magnetic card type public telephone, and FIG. 2 is a sectional view taken along the line shown in FIG. 1. , FIG. 3 is a plan view of the main part of the fixed frame. In these figures,
Reference numeral 1 denotes an inclined card reciprocating path formed between close and opposing end surfaces of a fixed frame 2 and a rotating frame 3. In this path 1, a magnetic card 4 is transported between an endless conveyor belt 5 and a driven belt. 6 and move it back and forth at high speed in the vertical direction,
During this time, the card 4 is configured to read and write data. A card return passage 9 communicating with the return port 7 and a card storage passage 11 communicating with the card storage box 10 are formed below the card reciprocating passage 1, and both passages 9 and 11 can be selectively opened and closed. A control selector 12 is provided.

The fixed frame 2 has a pair of left and right side plates 1 that are each formed into a flat plate shape and face each other with a predetermined interval.
3a, 13b, and a plurality of spacing members 14 that connect these side plates 13a, 13b, and are housed and fixed inside an outer frame 15 at appropriate intervals. Similarly, the rotating frame 3 is composed of a pair of left and right side plates 17a, 17b that face the side plates 13a, 13b with the same distance therebetween and are connected by a plurality of spacing members 16. , this rotating frame 3 is located in front of the fixed frame 2 and stored inside the outer frame 15,
Moreover, its upper end is rotatably supported by the outer frame 15 in the directions of arrows A and B in FIG. 1, thereby making it possible to open and close the card reciprocating path 1. A member 18 having the return port 7 is fixed to the lower part of the front end surface of the rotating frame 3, and the lower end surface 8 has a gently inclined slope 8a.
and a horizontal surface 8b, and this lower end surface 8, the upper surface 12a of the selector 12, and the horizontal plate 19.
The card return passage 9 is formed between the card return passage 9 and the card return passage 9.

The lower end of the conveyor belt 5 is stretched around rotatable rollers 20 and 21 and a tension roller 22 disposed within the rotary frame 3, so that
It is bent in the direction of the card return path 9, and the magnetic card 4 is guided to the return slot 7 by the roller 20 and an idle roller 23, which will be described later. On the other hand, the lower end of the driven belt 6 extends below the selector 12 by being tensioned around rotatable rollers 24 and 25 and a tension roller 26 disposed within the fixed frame 2, and extends below the selector 12. 24 and 2
The card storage passage 11 is formed by the belt portion 6a between the slots 5 and the rear surface 12b of the tip end of the selector 12. Further, in addition to the tension roller 26, a roller 26 is provided near the roller 24.
A small diameter roller 27 located on the opposite side is disposed, and by shifting this roller 27 in the vertical direction and pressing it against the belt portion 6a, the magnetic card 4
The direction of the fall is changed.

The selector 12 has three spacing members 28a,
It is composed of a pair of left and right plate members 29a and 29b connected by 28b and 28c, and is rotatably arranged in front of the lower end of the fixed frame 2 by a support shaft 30 supported by the outer frame 15. has been done. An idle roller 23 is provided at the front end of the selector 12 and is rotatably supported by a shaft 34 and is normally pressed against the roller 20 via the conveyor belt 5. The rear end portions of the pair of plate members 29a and 29b extend diagonally backward and upward, and their tips reach the lower end position of the card reciprocating path 1, that is, near the rollers 21 and 25, and normally extend toward the rear of the card reciprocating path 1. By being located at the rear, the card return passage 9 is opened and at the same time the card storage passage 11 is closed. Therefore, after the end of the call, the magnetic card 4 with the remaining call count remains.
is guided from the card reciprocating path 1 to a card return path 9, guided to a return port 7 by rollers 20 and idle rollers 23, and discharged to the outside. On the other hand, the magnetic card 4 that has no remaining call power when the call ends becomes unusable, so the solenoid 3
1, the card is stored in the card storage box 10 through the card storage passage 11. That is, when the solenoid 31 is excited by the card storage signal,
The movable iron core 31A is sucked and moved to the right in FIG. 1 and presses the spacing member 28c of the selector 12, so the selector 12 is rotated counterclockwise in FIG. Move to the front side of the driven belt 6. As a result, the card return passage 9 is closed and the card storage passage 11 is opened, and at the same time the idle roller 23 is moved to the conveyor belt 5.
In order to separate the magnetic card 4 from the card, the magnetic card 4 having no remaining call power passes through the card storage passage 11 and is dropped into the card storage box 10 and stored.

When the power to the solenoid 31 is cut off after the card storage operation, the movable iron core 31A and the selector 12 return to their initial positions by the force of the spring 33, thereby opening the card return passage 9 and opening the card storage passage 11. is closed, and the idle roller 23 is pressed against the conveyor belt 5. Note that one end of the spring 33 is locked to the solenoid 31, and the other end is locked to the lower end of the selector 12. Further, the solenoid 31 is horizontally installed at the center of the lower surface of the horizontal plate 19 disposed below the front end of the outer frame 15.

A pair of front and rear stoppers 35 and 36 are rotatably disposed inside and below the rotating frame 3 via shafts 37 and 38, respectively. The front stopper 35 is located near the return port 7 to prevent the magnetic card 4 from flying out of the return port 7 and falling to the floor at the feeding speed of the conveyor belt 5 when the card is returned. At the same time, this is to prevent the magnetic card 4 from being inserted backwards from the return slot 7 for purposes such as unauthorized use. The torsion coil spring 39 provides a constant rotational tendency in the counterclockwise direction in FIG. The spring force of the torsion coil spring 39 is weak;
Therefore, the magnetic card 4 returned to the return slot 7 can pass through the stopper 35 by turning the stopper 35 by a small angle counterclockwise against the spring 39 at its tip. When inserted, the tip of the magnetic card 4 comes into contact with the lower end of the stopper 35, thereby preventing further insertion. Note that the counterclockwise rotation of the stopper 35 is prevented by the horizontal plate 19.

Like the front stopper 35, the rear stopper 36 also extends diagonally downward and faces into the card return passage 9, and is always given a counterclockwise rotational habit by the torsion coil spring 40. ,
Its lower end is pressed against the upper surface of one of the plate members 29b constituting the selector 12, and rotation in the counterclockwise direction is restricted and prevented. In this case, the stopper 36 is disposed behind the roller 20, and at the mounting position of the roller 20, a light emitting element 42a and a light receiving element 42b constituting the sensor 42 are installed on one inner surface of the outer frame 15 in the card return path. They are arranged vertically facing each other with 9 in between. The distance from this sensor 42 to the return port 7 is set approximately equal to the length of the magnetic card 4. In this way, even if the return slot 7 is blocked by a hand or the like when returning the card, the magnetic card 4 will pass through the stopper 36 and the rear end will be located at the roller 20 position, so that the magnetic card 4 will pass in the feeding direction of the conveyor belt 5. Even if the card is switched, the card contacts the stopper 36, so that the card is not sent back to the reciprocating path 1.

A sensor 4 is further installed near the rear of the return port 7.
5 is provided, and this sensor 45 and the sensor 42 detect the return of the magnetic card 4,
Stop the card reader.

Although the above embodiment describes the case where the stopper 35 is biased by the torsion coil spring 39, the present invention is not limited to this, and if a stopper having elasticity such as a plate spring is used, the spring can be omitted. be.

As explained above, the magnetic card reverse insertion prevention structure of the card reader according to the present invention includes a first stopper that prevents reverse insertion and reduces the ejecting speed of the magnetic card near the card return slot. A second stopper is installed behind the return slot at a distance equivalent to the length of the magnetic card to prevent the magnetic card from being inserted backwards. prevent return;
Furthermore, even if the return card is inserted backwards in this state, this can be reliably prevented by the second stopper. Furthermore, when the magnetic card passes through the first stopper, the feeding speed is weakened by frictional resistance with the first stopper, so there is no danger of the magnetic card flying out of the return slot with force and falling to the floor. Furthermore, the structure is simple and the assembly work is easy, and its practical effects are very large.

[Brief explanation of drawings]

Fig. 1 is a side sectional view showing an embodiment of the magnetic card reverse insertion prevention structure of the card reader according to the present invention applied to a magnetic card type public telephone; FIG. 3 is a plan view of the main parts of the fixed frame. 1... Card reciprocating path, 2... Fixed frame, 3... Rotating frame, 4... Magnetic card, 5
...Conveyor belt, 7...Return port, 9...Card return passage, 11...Card storage passage, 12...Selector, 23...Idle roller, 31...Solenoid, 33...Spring, 35, 36... …stopper.

Claims (1)

[Scope of utility model registration request] A first stopper that prevents the magnetic card from being inserted through the return slot and reduces the ejecting speed of the magnetic card returned from the return slot is provided near the return slot, and a first stopper is provided on the back side of the return slot. A structure for preventing reverse insertion of a card in a card reader, characterized in that a second stopper is disposed at a distance corresponding to the length of the magnetic card and prevents reverse insertion of the magnetic card.