JPS5815831B2 - Butsupinkenshiyutsusouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an article detection device for detecting the presence or absence of an article.

For example, in an automatic teller machine, cash, payment slips,
and cards etc. are discharged into a dispensing section which is opened and closed by a shack 1 as shown in Figs. .

When the shutter 1 is provided at the receiving slot 2 as described above, it is necessary to close the shack after the customer receives cash, or some customers may forget to take out some of the cash, cards, slips, etc. Therefore, from an operational standpoint, it is necessary to detect the residue in the discharge section.

As shown in FIG. 1, the detection method includes a transmission type photoelectric switch in which a light emitter 4 is provided on an upper wall 3 and a light receiver 6 is provided on a mounting table 5;
As shown in FIG. 2, a reflective photoelectric switch is provided with a light projector 4 facing toward the mounting table 5 from one side wall 7, and a light receiver 6 provided on the other side wall 8 to receive the reflected light from the mounting table 5. There is.

However, in the case of the reflective type shown in Figure 2, for white objects such as cards and slips, the reflectance is less dependent on the reflectance of the mounting table 5, and malfunctions may occur due to a decrease in reflectance due to dirt on the mounting table 5. It has the disadvantage that it tends to occur.

Compared to the reflective type shown in Figure 2, the transmission type shown in Figure 1 provides better detection, but if there is a residue 9 on the mounting table 5, this residue 9 will be removed for the next payment operation. Therefore, the mounting table 5 must be structured so that it can be rotated downward.

With this configuration, a problem arises in attaching the lead wire of the light receiver 6 to the mounting table 5.

In other words, in order to enable detection to every corner of the mounting table 5, approximately 4 to 8 photoelectric switches are required, and as the number of photoelectric switches increases, the number of lead wires increases, which limits the rotation of the mounting table 5. Also, it is possible to install a photoelectric switch avoiding the rotation space of the mounting table, but in this case, the mounting table will be separated and the photoelectric switch will be installed, so a large space will be required. .

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an article detection device that can use a detection means such as a transmission type photoelectric switch and can reliably detect an article even though the above-mentioned mounting table rotates.

According to the article detection device of the present invention, a light guide made of, for example, a glass fiber bundle is provided on the moving mounting table, so that the light beam from the projector can be guided to the photoelectric converter adjacent to the mounting table via the light guide. This eliminates the need to directly provide a projector or a photoelectric converter on the rotating mounting table, making it easier to connect lead wires, and making it possible to move the mounting table without being restricted by the detection means.

Since the light projector for the article can be of a transmission type that projects light from the light emitting means onto the photoelectric converter, the article can be detected reliably.

An example of the present invention having such characteristics will be described in detail below with reference to the drawings.

The drawing shows a detection device at the outlet for cash, payment slips, cards, etc. of an automatic teller machine.

In Figures 3 to 6, 11 is the receiving port 12 on the front panel.
A shutter 1 that opens and closes is provided inside the receiving port 12.
It has 3.

The mounting table 14 at the bottom is used to place banknotes, payment slips, cards, etc. sent out by the sending conveyors 15, 15, and when these sent out items are returned or some of them are not taken out. It is provided to rotate downward about a shaft 16 to perform a recovery operation.

Note that the shaft 16 is a rotary solenoid, for example.
It is rotated by a drive mechanism.

On the upper surface of the upper wall 17, projectors 18a to 18d each consisting of four light emitting diodes are provided with the projection direction directed toward the mounting table 14.

At a position facing the above-mentioned floodlights 18a to 18d on the mounting table 14, there is a light guide 19 made of bundled glass fibers.
Position one end flush with this light guide 1.
9... are bent so that the other end is flush with the end surface thereof.

On the side walls 20, 20 of the light guide 19 facing the end face side of the mounting table 14, photoelectric converters PH1 to PH4 each consisting of a photoconductive element are attached to face each other.

Note that a detector PHO for detecting delivery is provided at the delivery end of the delivery conveyors 15, 15.

In the control circuit of FIG. 7, photoelectric converters PH1 to PH4
outputs a signal when the end face of the light guide 19 on the surface of the mounting table 14 is covered by the sent object, and also outputs a signal when the end face of the light guide 19 on the surface of the mounting table 14 is covered by the sent out object, and
HO also outputs a signal when covered with a sent-out object.

Next, the operation will be explained according to FIG. 9A+B.

In the figure, A is the output signal of the photoelectric converters PH1 to PH4, the opening is the card release step signal, C is the output signal of the sending detector PHO, the second is the output signal of the ant gate 27, and the e is the output of the AND gate 29. Signal, H is the state of the timer 30, G is the time-up output signal of the timer 30, H is the output signal of the shirt shutter opening/closing drive circuit 25, and S is the shirt shutter opening/closing driving circuit 2.
5 is the input signal of the recovery device 32, and nu is the input signal of the collection device 32.

As shown in A1 A of FIG.
The signal is inputted to the shutter opening/closing drive circuit 25 to control the shutter 13 to close, and when the shutter 13 is completely closed, a signal is generated from the first microswitch MSW1, and this signal stops the closing control.

As shown at A2 in FIG. 9A, when a banknote is sent out from the delivery conveyor 15.15 due to a cash payment operation, the delivery detector PHO detects this and issues a signal C, which is sent to the differentiating circuit 26. The signal is input to the AND gate 27 via.

When the above-mentioned banknotes are released onto the mounting table 14, the light guides 19... are covered by the banknotes, so that the photoelectric converters PH1 to PH4 output a signal A.

This signal inhibits the aforementioned Nant gate 21, and
It is input to the AND gate 29 via the OR gate 28.

A card is then released on the payment slip.

As shown at A3 in FIG. 9A, when the card release step signal port is input to the ant gate 27, a signal 2 is output from the AND gate 27, and this signal is input to the shirt opening/closing 1 drive circuit 25. When the shutter 13 is completely opened, a signal is generated from the second microswitch MSW2, and this signal stops the opening control.

At the same time, the signal from the AND gate 27 is input to the AND gate 29, and a signal H is generated from the AND gate 29 to drive the timer 30 by 1.

This timer 30 is set to a time sufficient to take out the material on the mounting table 14, and when this set time elapses, a time-up signal is output, and this signal passes through the OR gate 24 to close the shutter 13. At the same time, the collecting device 32 is driven once through the or gate 31 to remove the loading table 14.
is rotated downward to collect the delivered material on the mounting table 14.

However, normally, the item on the mounting table 14 is taken out by the customer before the above-mentioned time-up signal is output.

In other words, when the customer takes out the item, the light guide 19...
Since the cover is removed, the signal A from each photoelectric converter PH1 to PH4 disappears.

Therefore, the AND gate 29 is prohibited, but since a signal is output from the Nants gate 21, this signal is delayed by the delay circuit 23 for the time required to cut corners, and then output to the OR gate 29.
4, the shutter 13 is controlled to close by a shutter opening/closing drive circuit 25.

Note that the timer 30 is reset by a signal from the differentiating circuit 22.

However, as shown in FIG. 9B, if there is something left behind after taking out the output on the mounting table 14, no signal is output from the Nantes gate 21 because one of the light guides 19 is covered.

When this leftover material is not removed, the timer 30 outputs a time-up signal, and based on this signal, the shank 13
is controlled to close, the collection device 32 is driven, and the undelivered items on the mounting table 14 are collected.

If there is a mistake in ejecting a bill from the delivery section, a bill ejection mistake signal is input to the OR gate 31, the collecting device 32 is driven, and all the delivered items are collected.

Also, after collection based on the time-up of timer 30, the payment machine may be restarted or may be taken down.

Further, the delivered items may be temporarily stored in the tray 1/A, and then this tray may be moved to the mounting table 14.

The collection operation by the mounting table 14 may be rotational movement or linear movement.

Although the projectors 18a to 18d were provided on the upper wall 17 in the above-mentioned actual case, they may be configured to project light onto the light guide 19 from the side wall 20 in an oblique direction, as shown in FIG.

The number and arrangement of the photoelectric converters PH and the light guides 19 are arbitrary, and only one light source may be used if the light source is a visible light source, and the light includes infrared rays and ultraviolet rays.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIGS. 1 and 2 are a side sectional view and a front sectional view of a general example, FIG. 3 is a partially cutaway perspective view of the invention, and FIG. 4 is a front sectional view. 5 is a side sectional view, FIG. 6 is a sectional view taken along line A-A in FIG. 4, FIG. 7 is a control circuit diagram, FIG. 8 is a front sectional view showing another example, and FIG. FIG. 9A is a time chart during normal operation, and FIG. 9B is a time chart during unattended operation. 14... Placement table, 15... Delivery conveyor, 18a to 18d... Floodlight, 19...
...Light guide, 32...Recovery device, PHI
~PH4...Photoelectric converter.

Claims (1)

[Claims] 1. In an article detection device that is equipped with a mounting table that receives an article and rotates around a predetermined axis and a detection means that detects the article on the mounting table, a hole that penetrates from the top surface to the side surface on which the article is placed is used. a mounting table provided with a mounting table; a light guide that is fitted into the hole of the mounting table and guides light;
An article detection device comprising: a photoelectric converter provided at a predetermined position facing the hole in the side surface; and a light projector provided opposite to the hole in the top surface.