JPH05266316A - Detection device for double sending of card and the like - Google Patents

Abstract

PURPOSE:To provide the detection device of the double sending of cards and the like, which can securely detect sending without damaging the cards and the like to be transported. CONSTITUTION:A first roller 11 having a low friction material layer on an outer peripheral surface, a second roller 13 which is oppositely arranged with respect to the outer peripheral surface of the first roller at a prescribed interval and which has a high friction material layer at the outer peripheral surface and a double sending detection means detecting that the second roller is rotated when more than two cards and the like pass through the first and second rollers are provided. The interval between the first and second rollers is set so that it becomes larger than the thickness of one card and becomes smaller than the thickness of two cards.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card double feed detecting device, and more particularly, to an automatic ticket vending machine for selling tickets by inserting cards such as prepaid cards. The present invention relates to an improvement of a card double feed detection device capable of reliably detecting double feed of cards in a ticket vending machine or the like.

[0002]

2. Description of the Related Art An automatic ticket vending machine which sells tickets such as tickets by inserting a prepaid card instead of cash has a card inserted through a card slot. An insertion sensor for detection is provided, and a control unit which receives an insertion detection signal of cards from the insertion sensor outputs a control signal to a drive unit of a conveyance mechanism such as a pull-in roller and a conveyance roller. It is operated and the card is nipped and conveyed in the insertion direction along the conveying path.

In the conventional card type conveying apparatus as described above, a plurality of cards are inserted from the insertion opening due to error or mischief.
When cards are inserted repeatedly, the cards that have been double-fed will cause a jam inside the device and will have to stop the operation of the device, resulting in a decrease in utilization efficiency. was there.

In particular, an automatic vending machine capable of accepting both cards and bills, which can insert both cards and bills through a single insertion port, has been developed. ,
Since it is necessary to insert banknotes, it is often necessary to secure a large thickness dimension of the insertion slot to facilitate the insertion of weak banknotes. As a result, there is a risk that a plurality of cards will be erroneously inserted. it was high.

By the way, as a device for detecting the double feeding of banknotes, there is, for example, a double feeding detecting device as shown in FIGS. 4 (a) and 4 (b), and this double feeding detecting device has a predetermined distance on the same axis. And the pair of pulleys 101 and
A base pulley 102 arranged coaxially between them and having a diameter slightly larger than that of the pulley 101, and an inner side which is wound around the outer peripheral surface of the pulley 101 to form a banknote conveyance path in a mutual contact area. When the banknotes that are rotatably supported by the conveyor belt 103, the outer conveyor belt 105, and the shaft 111 in the outer diameter direction of the base pulley 102 and are conveyed between the belts 103 and 105 are in the double feed state. Double feed detection plate 1 for holding the bill M with the base pulley 102 and entraining it in the direction of the arrow 1.
07 and a sensor 1 such as a photo interrupter that detects the double feed detection plate 107 when it rotates in the direction of the arrow.
And 09.

The double feed detection plate 107 is rotatable about a shaft 111, has a fan-shaped bill abutting portion 107a having a locus with the shaft 111 as a geometric center, and By urging the spring 113 in the direction opposite to the arrow, a part of the bill abutting portion 107a is positioned in the bill conveying path, and the stopper 115 restricts the rotation range of the spring 113 in the urging direction. When one banknote is normally conveyed in this state, the banknote contact portion 107a permits passage without contacting the banknote or even if contacting the banknote is not affected.

However, when two or more banknotes are conveyed in an overlapping manner, a banknote having a thickness twice or more that of the normal transfer is inserted between the conveyor belts 103 and 105.
The leading edge of the double-fed bill strikes the bill contact portion 107a of the double-feed detection plate 107 and presses the double-feed detection plate 107 to rotate it in the direction of the arrow. Will be detected by.

When such a double-feed detection device for bills is used for double-feed detection of cards, as shown in FIG. 5, the gap between the pulley 102 and the double-feed detection plate 107 is set to one. The card is set so that it can pass, and because the card is hard and not easily deformed, the belts 103, 105
Need to run in a straight line as shown.

However, since cards are harder than banknotes, two cards that have been double-fed are in the base pulley 10.
If an attempt is made to forcibly pass through the gap between the No. 2 and the double feed detection plate 107, the pulley 102 and the plate 107 may be locked and a card jam may occur, or the leading end of the card may be crushed. Further, when the upper card comes into contact with the multi-feed detection plate 107 and stops, and when only the lower card is conveyed, the multi-feed detection plate does not operate, so that the double-feed cannot be detected. Cause

[0010]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and can reliably detect double feeding without damaging the cards to be conveyed.
It is an object of the present invention to provide a double feed detection device for sheets.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has the following constitution.

That is, according to the present invention, a first roller having a low-friction material layer on the outer peripheral surface is arranged to face the outer peripheral surface of the first roller at a predetermined distance. A second roller having a high friction material layer on its outer peripheral surface, and a weight for detecting that the second roller is accompanied when two or more cards are passing between the first and second rollers. A feed detection means, and the distance between the first and second rollers is the car
The thickness is set to be larger than the thickness of one card and smaller than the thickness of two such cards.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the preferred embodiments shown in the drawings. FIG. 1 is a cross-sectional view showing an embodiment of a card multifeed detection device according to the present invention. For example, a card insertion portion of a vending machine which can use a prepaid card has a predetermined interval. And a pair of upper and lower guide rails 3 and 3 that form a conveying path with the card insertion port 1 by facing each other in a vertical positional relationship, and are arranged so as to face each other with the card conveying path interposed therebetween. Thus, a transmissive insertion sensor 5 composed of a light emitting element 5a and a light receiving element 5b for detecting the insertion of cards, and a pair of upper and lower parts which nips the tips of the cards and draws them toward the inside of the apparatus. The double feed detection device A according to the present invention for detecting the double feed of the pull-in roller pair 7 and the cards drawn in by the pull-in roller pair 7.
And a pair of upper and lower transport rollers 9 for transporting one card that has passed through the double feed detection device A further toward the inside of the device.

As shown in FIGS. 1 and 2, the multi-feed detection device A has a long resin roller 11 (first roller) having a part of the outer peripheral surface projected into the conveyance path. And two short rotatable sponge rollers 13 that are rotatably supported above the resin rollers 11 with the transport path sandwiched therebetween. The sponge roller 13 is opposed to the sponge roller 13 with a distance d larger than the thickness of one card and smaller than the thickness of two cards. The distance d is, for example, a thin card of about 0.3 mm as in a commercially available prepaid card.
In a vending machine that handles cards, it is preferable to set the thickness to slightly exceed the card thickness, for example, about 0.4 mm. The resin roller 11 may be driven to rotate by a driving source such as a motor, or the resin roller 1 may be rotated.
Alternatively, 1 may be set to free rotation, and the card may be conveyed only by the conveying force from the adjacent pull-in roller pair 7.

Further, the respective rollers 11, 13 are fixed to the side plates 15, 15 of the apparatus main body so as to have the same axis center on the rotary shafts 18, 19 pivotally supported by bearings 17, 17. One end of the rotary shaft 19 to which the sponge roller 13 is fixed is extended outward from the side plate 15, and a sensing plate 21 is coaxially integrated with the extension portion.
A multi-feed sensor 23 made of a photo interrupter or the like is fixed in the movement locus of the detection target such as a slit provided in the peripheral portion of the.

The vending machine body controls the output of a display command signal to the display means for displaying the occurrence of a double feed when the double feed sensor 23 detects the double feed, and the output of a stop signal to the power supply unit, the motor, etc. A unit (not shown). The control unit drives the pull-in roller pair 7 and the transport roller 9 when the insertion sensor 5 detects the insertion of the cards and pulls the cards into the apparatus. Of course.

Now, when the user inserts a card or the like from the insertion opening 1, the insertion sensor 5 detects this, and the retracting roller pair 7 causes the lead-in roller pair 7 based on the control signal from the controller. Nip and draw it into the device at a predetermined speed. Here, when only one card is inserted, the card C1 passes between the resin roller 11 and the sponge roller 13 as shown in FIG. 3 (a). After that, the transfer rollers 9 are nipped to further convey the cards C1 to the inside. The distance d is set to be slightly larger than the thickness of one card, so that the card that is going to pass between the resin roller 11 and the sponge roller 13 will not contact the outer peripheral surface of the sponge roller 13. Are not in contact with each other or are in slight sliding contact with each other so as not to rotate them.

On the other hand, as shown in FIG. 3 (b), when a plurality of cards C1 and C2 are superposed and inserted from the insertion opening 1, the insertion sensor 5 detects the insertion of the cards and the control unit The pull-in roller pair 7 is connected to the cards C1 and C2 based on the control signal from
Nip the tip of the and draw it into the device at a predetermined speed. When the double feeding cards C1 and C2 plunge between the resin roller 11 and the sponge roller 13, the card C having a gap d of two sheets is provided.
Since it is smaller than the thickness of C1 and C2, the upper card C
2 is strongly pressed against the outer circumference of the sponge roller 13 to deform it and rotate the sponge roller 13. Since the sponge roller 13 has a large frictional resistance, it can be reliably rotated by the card C2. When the sponge roller 13 rotates, the sensing plate 21 rotates, and the double feed sensor 23 detects the object to be detected on the outer peripheral edge of the sensing plate, so that the occurrence of double feed of the cards can be known.

In this case, the control unit performs control such as displaying on the display means that there is a double feed, or turning off the power to stop the operation of the vending machine. Therefore, it is possible to prevent the jam of the cards from occurring and improve the utilization efficiency of the vending machine. Further, since the roller 11 for nipping the cards is made of sponge, the cards are not damaged when nipping the cards.

As described above, in this embodiment, the resin roller 11 and the sponge roller 13 are separated from each other by the optimum distance with the card conveying path sandwiched therebetween so that the double feed card is separated. When the cards are conveyed, the sponge roller 13 is surely rotated, and the double-feed sensor 23 for detecting the rotation of the roller 13 is provided to ensure the double-feed without damaging the cards. However, the present invention is not limited to the above embodiment, and may be, for example, one long sponge roller 13. As a matter of course, three or more short lengths may be arranged, or the resin roller 11 may be divided into a plurality of pieces.

Further, the first roller and the second roller are not limited to the above constituent materials. For example, instead of the sponge roller 13, a roller having a plurality of elastic blades protruding in the radial direction may be used on the outer circumference of the rotating shaft.

[0022]

Since the present invention is constructed and operates as described above, it is possible to reliably detect a double feed without damaging the cards and improve the utilization efficiency of the apparatus.

[Brief description of drawings]

FIG. 1 is a side view showing a card insertion section of an automatic vending machine to which a card multi-feed detection device according to the present invention is applied.

FIG. 2 is a front view showing a preferred embodiment of the card double feed detection device according to the present invention.

3 (a) and (b) are a single card in the apparatus of FIG.
FIG. 3 is an operation explanatory view when a card or the like passes, and an operation explanatory view when two cards or the like pass.

4 (a) and 4 (b) are side views showing a conventional bill double-feed detection device.

5 is a side view when the bill double feed detection device shown in FIG. 4 is applied to a card double feed detection device.

[Explanation of symbols]

 C1 and C2 cards 11 Resin roller (first roller) 13 Sponge roller (second roller) 19 Rotating shaft 21 Sensing plate 23 Photo interrupter (detecting means)

Claims (2)

[Claims] 1. A first roller having a low-friction material layer on the outer peripheral surface thereof, and a first roller arranged opposite to and spaced apart from the outer peripheral surface of the first roller at a predetermined interval and having a high height on the outer peripheral surface. A second roller having a friction material layer; and a double feed detecting means for detecting that the second roller is rotated when two or more cards are passing between the first and second rollers. And the first
The distance between the second roller and the second roller is set to be larger than the thickness of one card and smaller than the thickness of two of the cards. Double feed detection device. 2. The low friction material layer of the first roller is made of resin, and the high friction material layer of the second roller is made of sponge. Card double feed detection device.