JP2596473Y2 - Paper detection device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet detecting device having a plurality of sheet detecting units along a conveying path.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, for example, a reservation ticket or the like is inserted into an insertion hole of a ticket issuing machine, and the contents of the reservation ticket inserted by a ticket recognition unit inside the reservation ticket are read. In a ticket issuing machine in which a ticket is output by a printer unit based on the information, a paper detecting device 1 is built in the ticket issuing machine. The paper detection device 1 includes a ticket transport path 3 provided in a housing 2, and a plurality of tickets as a sheet detection unit that detects a jam of a ticket as a transported sheet (not shown) along the transport path 3. detection sensors 4 _1, 4 ₂ are provided at a predetermined interval.
Further, light-emitting diodes LED1 and LED2, which are ticket jam indicators, are provided near the positions where the ticket detection sensors 4 ₁ and 4 ₂ are provided, respectively.

[0003] Then, these ticket detection sensor 4 _1,
4 ₂ and the light emitting diodes LED1, LED2 are electrically connected as shown in FIG.

First, a base of a transistor Q1 serving as a switching element is connected to an LED1 ON port of a CPU (not shown) via a resistor R1, and a collector of the transistor Q1 is connected to a power supply via a resistor R2 and a light emitting diode LED1. The emitter of the transistor Q1 is grounded, and a resistor R3 is connected between the base and the emitter.

Further, a ticket detection sensor 4 _{1 of the} CPU ₁
The base of a transistor Q2 serving as a switching element is connected to the ON port via a resistor R4.
The collector of Q2 is connected to a power supply via a light emitting diode LED3 of the resistor R5 and the ticket detection sensor 4 _1, together with the emitter of the transistor Q2 is grounded, the base,
A resistor R6 is connected between the emitters.

[0006] Then, the phototransistor PTr1 ticket detection sensor 4 ₁ is the photo coupling the light emitting diode LED 3, the collector is connected to a power source, together with the emitter is grounded through a resistor R7, ticket detection sensor 4 ₁ of CPU Connected to OUT port.

A transistor Q3 serving as a switching element is connected to an LED2ON port of the CPU via a resistor R11.
The collector of the transistor Q3 is connected to a power supply via a resistor R12 and a light emitting diode LED2, the emitter of the transistor Q3 is grounded, and a resistor R13 is connected between the base and the emitter. .

Further, a ticket detection sensor 4 _{2 of the} CPU
The base of a transistor Q4 serving as a switching element is connected to the ON port via a resistor R14, and the collector of the transistor Q4 is connected to the resistor R15 and the ticket detection sensor 4.
The transistor Q4 is connected to a power supply via a _second light emitting diode LED4, the emitter of which is grounded, and a resistor R16 is connected between the base and the emitter.

[0009] Then, the phototransistor PTr2 ticket detection sensor 4 ₂ is photo-coupled to the light emitting diode LED 4, the collector is connected to a power source, together with the emitter is grounded through a resistor R17, ticket detection sensor 4 ₂ of the CPU Connected to OUT port.

[0010] In this circuit, the light emitting diode LE and ticket detection sensor 4 ₁ phototransistor PTr1
Detecting the presence of a ticket by photo coupling with D3, whether the input of the L level is made on the ticket detection sensor 4 ₁ OUT port within a predetermined time, the ticket arrives at the next ticket detection sensor 4 ₂ When the ticket arrives within a predetermined time and the L level is output from the phototransistor PTr2, the transistor Q3 does not turn on and the light emitting diode LED2 is not turned on.

Meanwhile, within the predetermined time after the input of the L level is made on the ticket detection sensor 4 ₁ OUT port ticket detection sensor 4 _1, when the ticket to the next ticket detection sensor 4 ₂ does not arrive, the photo Transistor PTr2
Since the L level output is not made from the LED, the LED2ON port outputs a pulse-like output and turns on the transistor Q3 intermittently because the ticket is clogged.
Make LED2 blink.

[0012]

[Problems to be solved by the invention] However, in the case of the circuit configuration shown in FIG.
The switching elements Q1, Q2, Q3, and Q4 are provided for each of the LED2, LED3, and LED4, and the number of output ports such as a CPU increases. It has problems that are complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a paper detecting apparatus capable of simplifying a control circuit and a control signal.

[0014]

According to the present invention, a plurality of paper detection units are arranged at a distance along a transport direction of a paper transport path.
In a paper detecting apparatus provided with a display for detecting a paper corresponding to the paper detecting section, a control circuit for controlling the operation of the paper detecting section and the display with a common switching element is provided. is there.

[0015]

According to the present invention, the switching element for controlling the sheet detecting section and the display corresponding to the sheet detecting section are commonly used, so that the control circuit and the control signal can be reduced, and the display corresponding to the sheet detecting section is provided. Since the switching elements to be operated are common, there is no need to operate the paper detection unit when controlling the display, so there is no operational problem.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the paper detecting apparatus of the present invention will be described below with reference to the ticket issuing machine shown in FIGS. In addition,
2 and 3 described in the conventional example will be described with the same reference numerals.

In this embodiment, the structure of the main unit is the same as that shown in FIG. The sheet detecting device 1 has a ticket conveying path 3 provided in a housing 2, and a ticket detecting sensor 4 ₁ , which serves as a sheet detecting unit (not shown) for detecting jamming of a conveyed ticket (not shown) along the conveying path 3. 4 ₂ is disposed. Further, light emitting diodes, which are ticket jam indicators, correspond to the ticket detection sensors 4 ₁ and 4 ₂ , respectively.
LED1 and LED2 are arranged in the same manner as described above.

The ticket detecting sensors 4 ₁ ,
4 ₂ and the light emitting diodes LED1, LED2 comprises a electrical configuration shown in FIG.

First, the base of a transistor Q11 serving as a switching element is connected to the ON port of a ticket detection sensor 4 _{1 of a} CPU (not shown) via a resistor R21. The emitter of the transistor Q11 is grounded. Is connected to a resistor R22. The collector of the transistor Q11 is connected to the resistor R23 and the light emitting diode.
Connected to the power supply via LED1 and the resistor R24
And it is connected to the power supply through the light emitting diode LED3 ticket detection sensor 4 _1.

[0020] Then, the phototransistor PTr1 ticket detection sensor 4 ₁ is the photo coupling the light emitting diode LED 3, the collector is connected to a power source, together with the emitter is grounded through a resistor R25, ticket detection sensor 4 ₁ of CPU Connected to OUT port.

The ticket detection sensor 4 ₂ O of the CPU
The base of a transistor Q12 serving as a switching element is connected to the N port via a resistor R31. The emitter of the transistor Q12 is grounded, and a resistor R32 is connected between the base and the emitter.
The collector with is connected to the power supply via a resistor R33 and a light emitting diode LED2, is connected to a power supply via a light emitting diode LED4 resistor R34 and ticket detection sensor 4 _2.

[0022] Then, the phototransistor PTr2 ticket detection sensor 4 ₂ is photo-coupled to the light emitting diode LED 4, the collector is connected to a power source, together with the emitter is grounded through a resistor R35, ticket detection sensor 4 ₂ of the CPU Connected to OUT port.

Next, the operation of the above embodiment will be described.

Firstly, performs H-level output from the ticket detection sensor 4 ₁ ON port and ticket detection sensor 4 ₂ ON-port transistor Q11 and the transistor Q12
Turn on the LED1, LED2, LED3, LED4
Caused to emit light, as well as an indication of lighting conditions in the light-emitting diodes LED1, LED2, light emitting diode LED 3, LED 4 is lit to detectable state ticket detection sensor 4 ₁ and the ticket detection sensor 4 _2.

[0025] Then, to detect the ticket ticket detection sensor 4 _1, the phototransistor PTr1 is the input of the L level to the ticket detection sensor 4 ₁ OUT port is done by off within a predetermined time, the next ticket detection sensor 4 ₂ detects whether the ticket arrives, the ticket detection sensor 4 ₂ phototransistor PTr2 arriving ticket ticket detection sensor 4 ₂ within a predetermined time OU
When L-level output is made to the T port, ticket detection sensor 4 ₂ as being normal to turn on the transistors Q12 and H level output, to maintain the light-emitting diode LED2 are lit.

On the other hand, within a predetermined time after the input of the L level is made on the ticket detection sensor 4 ₁ OUT port ticket detection sensor 4 _1, when the ticket to the next ticket detection sensor 4 ₂ does not arrive, the photo Transistor PTr2
From for L level output is not made, it is determined that the ticket clogged between ticket detection sensor 4 ₁ and the ticket detection sensor 4 ₂ of the conveying path 3. The ticket <br/> Tsu preparative detecting sensor 4 ₂ OUT port of the CPU outputs a pulse shape,
According to this pulsed output, the base of transistor Q12
Is supplied with a pulse-like base current, and the transistor Q12
Is turned on intermittently, and the light emitting diode LED2
Intermittent current is supplied to blink the light emitting diode LED2, that displays that the ticket clogging.

[0027] In this way, for example if the ticket jam has occurred between the ticket detection sensor 4 ₁ and the ticket detection sensor 4 _2, although the output of the ticket detection sensor 4 ₂ OUT port pulsed with intermittent output of since already ticket detection sensor 4 Ttei no rows ₂ in the detection, the light emitting diode LED4 ticket detection sensor 4 ₂ also originating
Blinking with photodiode LED2 does not adversely affect detection.

[0028] As described above, by controlling the light emitting diode LED3 of the light emitting diode LED1 and ticket detection sensor 4 ₁ a common transistor Q11 connected to the ticket detection sensor 4 ₁ ON-port, a light emitting diode LED2 and ticket detection sensor 4 ₂ A common transistor connected to the light emitting diode LED4 of the ticket detection sensor 4 ₂ ON port
Even if controlled by Q12, the corresponding LED1, LED2
Since There ticket detection sensor 4 ₁ and the ticket detection sensor 4 ₂ when the flashing is not the detection operation, the ticket detection sensor 4 ₁ and the ticket detection sensor 4 control circuit without affecting the ₂ tickets detection Control circuit and control signals are reduced,
Substrate wiring and the like are simplified, and the detection device can be configured at low cost.

[0029]

According to the paper detecting apparatus of the present invention, there is provided a control circuit in which a paper detecting section and a switching element for controlling a display corresponding to the paper detecting section are provided in common, and the switching element controls the display. In this case, the sheet detection unit is not operated, so that there is no problem in operation, the number of control circuits and control signals can be reduced, and the detection device can be configured at low cost.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a control circuit of a ticket issuing machine according to an embodiment of the paper detecting apparatus of the present invention.

FIG. 2 is an explanatory diagram showing a transport path of the ticket issuing machine.

FIG. 3 is a circuit diagram showing a sheet detection control circuit of a conventional ticket issuing machine.

[Explanation of symbols]

4 _1, 4 ₂ emitting diodes Q11, Q12 transistor as a switching element as ticket detection sensor LED1, LED2 indicator as the paper detection unit

Claims (1)

(57) [Scope of request for utility model registration] 1. A sheet detecting apparatus, comprising: a plurality of sheet detecting units spaced apart from each other along a conveying direction of a sheet conveying path; and a display for displaying a detected sheet corresponding to the sheet detecting unit. The paper detection device according to claim 1, further comprising a control circuit that controls the operation of the paper detection unit and the display with a common switching element.