JPH09107423A - Cleaner for card carrying belt in card public telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clean dirt of a card carrying belt without visit of a maintenance personnel to a location where a telephone set is installed by providing a polish belt and a solenoid to make the polish belt contact onto the card carrying belt. SOLUTION: When a counter 6 counts a telephone card detection signal outputted from a card sensor by a prescribed number of times, the counter 6 provides an output of a count-up signal. A motor solenoid drive circuit 7 receives this signal to output a drive signal to a solenoid 9 and a motor 10. The solenoid 9 is driven, a solenoid shaft 91 is descended, and a roller 12 is descended via a spring 14. A polish belt 8 is descended and in contact with a card carrier belt 3. The polish belt 8 is wound on a winding roller 11 by the drive of the motor 10 and moved little by little. When the solenoid 9 and the motor 10 are operated for a prescribed time, they are deenergized by a signal from the drive circuit 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for cleaning a card carrier belt in a card-type public telephone at an appropriate time interval so that the card pulling force is always constant.

[0002]

2. Description of the Related Art Since card type public telephones are installed in various environments, various failures occur. For example,
When installed in a dusty place, the dust penetrates into the public telephone, and the card carrier belt becomes heavily soiled. Also, since it is used by various people, dirt on the card, oil on the hands, etc. adheres to the card transport belt via the card.

When the card conveying belt becomes dirty in this way, the frictional force due to the belt is reduced and the card pulling force is weakened. Therefore, the card cannot be normally sent, and in this case, there is a problem that various failures such as a card jam occur.

[0004]

Conventionally, a cleaning card has been prepared in case of the above problems.
The maintenance person goes to the place where the public telephone is installed,
Cleaning is performed by inserting the cleaning card into a card-type public telephone. The cleaning card is impregnated with an organic solvent (such as alcohol), and when the cleaning card is inserted into a pay telephone, the organic solvent removes dirt.

Therefore, in the conventional example, when the card carrier belt becomes dirty, the maintenance person has to go to the place where the public telephone is installed, which is a troublesome problem. Further, since a volatile organic solvent is used, there is a problem that it is necessary to pay attention to the preservation of the organic solvent.

According to the present invention, even if the card carrying belt is dirty, the maintenance person can remove the dirt on the card carrying belt without going to the place where the card-type public telephone is installed. An object of the present invention is to provide a cleaning device for a card carrier belt in a card-type public telephone that does not require attention to the preservation of organic solvents.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a card carrier belt for carrying a telephone card, a polishing belt for polishing the surface of the card carrier belt, a winding roller for winding the polishing belt, and a take-up roller. It has a motor for rotating the roller and a solenoid for bringing the polishing belt into contact with the card carrying belt.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a cleaning device 100 for cleaning a card carrier belt in a card type public telephone which is an embodiment of the present invention.

The cleaning device 100 for this card carrying belt
Is a card slot 1, a cover 2, a card carrier belt 3 for transporting the telephone card inserted from the card slot 1 into the card-type public telephone, and the telephone card being inserted into the card slot 1. A card sensor 4 for detecting, a control circuit 5 for performing various controls in a card-type public telephone, a counter 6 for counting the number of times of operation of the card sensor 4, and a motor and a solenoid which will be described later in response to a signal from the counter 6. It has a driving motor and a solenoid drive circuit 7.

Further, a cleaning device 100 for cleaning the card conveying belt.
Is for polishing the surface of the card transport belt 3 to form a polishing belt 8 having fine meshes and the like, a solenoid 9, a motor 10, a winding roller 11 for winding the polishing belt 8, and a polishing roller. A roller 12 around a belt 8;
A cartridge 13 containing a polishing belt 8, a take-up roller 11 and a roller 12 therein, a spring 14 for bringing the card transport belt 3 and the polishing belt 8 into contact with each other at an appropriate pressure,
The motor shaft 15 that supports the take-up roller 11 and the roller 1
And a shaft 16 for loading 2.

FIG. 2 shows a cleaning device 10 for a card carrying belt.
It is a figure which shows the principal part of 0.

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

First, when a user inserts a telephone card into the card insertion slot 1, the card sensor 4 detects the telephone card, the card sensor 4 outputs a detection signal, and the control circuit 5 receives this detection signal. The control circuit 5 performs a normal transmitting operation such as a driving operation of the card transport belt 3.

The counter 6 receives the detection signal output from the card sensor 4, counts the detection signal,
Predetermined number of detection signals (for example, 100 times, 200 times, etc.)
When counted, a count-up signal indicating that the detection signal has been counted a predetermined number of times is sent to the motor / solenoid drive circuit 7. The motor / solenoid drive circuit 7 receives the count-up signal and outputs a drive signal for driving the node 9 and the motor 10.

When the solenoid 9 receives the drive signal, the solenoid shaft 91 is lowered in the direction of arrow A shown in FIG. 1, the roller 12 is lowered via the spring 14, and the cartridge 13 is also lowered. Therefore, the polishing belt 8 in the cartridge 13 is lowered. And the polishing belt 8 comes into contact with the card transport belt 3. In this case, the polishing belt 8 has the spring 14
The card transport belt 3 is brought into contact with the card transport belt 3 at an appropriate pressure in accordance with the pressing force of.

When the polishing belt 8 and the card carrying belt 3 come into contact with each other as described above, the card carrying belt 3
Is rotating, the position (portion) of the surface of the card transport belt 3 contacting the polishing belt 8 is sequentially changed. Therefore, the surface of the card transport belt 3 is
The new surface is exposed, and the new surface is exposed.
The frictional force of increases (recovers).

The polishing belt 8 is wound around the take-up roller 11 by the rotation of the motor 10, but the polishing belt 8 moves only slightly, that is, the reduction ratio of the motor 10 is increased or the motor 10 is rotated. By shortening the driving time of, the moving distance of the polishing belt 8 is suppressed.

When the solenoid 9 and the motor 10 are operated for a fixed time (for example, one rotation of the card transport belt 3), the solenoid 9 and the motor 10 are stopped by a signal from the motor / solenoid drive circuit 7, and then the counter 6 is turned to an appropriate frequency. The solenoid 9 and the motor 10 are in a standby state until the count of is finished.

When the solenoid 9 receives the drive signal, the solenoid shaft 91 projects in the direction of arrow B shown in FIG. Therefore, when the spring 14 is pushed, the shaft 16 moves, and the shaft 16 rotates around the motor shaft 15, which is a fixed shaft.

According to the above embodiment, the card transport belt 3
Even if the card is dirty, the maintenance person can remove the dirt on the card carrier belt 3 without going to the place where the card-type public telephone is installed, and since a volatile organic solvent such as alcohol is not used. No need to pay attention to storage of volatile organic solvents.

In the above embodiment, the counter 6 counts the number of times the card sensor 4 detects the insertion of the telephone card, and when the counter 6 counts a predetermined number of times,
The solenoid 9 is driven for a predetermined time and the motor 10
Is rotated for a predetermined period of time, the card carrier belt 3 is uniformly cleaned, and the frictional force of the card carrier belt 3 can be maintained constant.

FIG. 3 is an explanatory view of the operation of removing the cartridge 13 for accommodating the polishing belt 8 in the above embodiment.

The cartridge 13 includes a roller 12 around which the polishing belt 8 is wound, a polishing belt 8, and a polishing belt 8
It has a take-up roller 11 for taking up and a case for accommodating the take-up roller 11, and the cartridge 13 can be detached from the motor shaft 15 and the shaft 16.

To remove the cartridge 13, the cartridge 13 may be pulled in the direction of arrow C in FIG. 3, and to mount the cartridge 13, the arrow C in FIG.
The cartridge 13 may be pushed in the opposite direction.
By doing this, the cartridge 13 is used for a long time,
When all of the polishing belt 8 has been wound up by the winding roller 11, it can be replaced with a new cartridge 13.

As described above, the cartridge 13 houses the polishing belt 8, the take-up roller 11 and the roller 12, and the cartridge 13 is installed in the cleaning device 10 for the card conveying belt.
Since it is removable from 0, it is easy to replace it with a new cartridge 13 after using the cartridge 13 for a long time.

[0026]

According to the present invention, even when the card carrying belt is dirty, the maintenance person can remove the dirt on the card carrying belt without going to the place where the card-type public telephone is installed. Since the volatile organic solvent is not used, there is no need to pay attention to the preservation of the volatile organic solvent.

[Brief description of the drawings]

FIG. 1 is a diagram showing a cleaning device 100 for cleaning a card carrier belt in a card-type public telephone according to an embodiment of the present invention.

FIG. 2 is a diagram showing a main part of a card transport belt cleaning device 100.

FIG. 3 is an explanatory diagram of an operation of removing the cartridge 13 that houses the polishing belt 8 in the above embodiment.

[Explanation of symbols]

100 ... Cleaning device for a card carrying belt in a card-type public telephone. 3 ... Card transport belt, 4 ... Card sensor, 5 ... Control circuit, 6 ... Counter, 7 ... Motor, solenoid drive circuit, 8 ... Polishing belt, 9 ... Solenoid, 10 ... Motor, 11 ... Winding roller, 12 ... Roller , 13 ... Cartridge.

Claims (3)

[Claims] 1. A card transfer belt for transferring a telephone card; a polishing belt for polishing the surface of the card transfer belt; a winding roller for winding the polishing belt; a motor for rotating the winding roller; A cleaning device for a card carrying belt in a card type pay telephone, comprising: a solenoid for bringing a polishing belt into contact with the card carrying belt. 2. The card sensor according to claim 1, which detects insertion of the telephone card;
A counter that counts the number of times the card sensor detects the insertion of a telephone card; and when the counter has counted the insertion of the telephone card a predetermined number of times, the motor is rotated for a predetermined time and the polishing belt is conveyed to the card. A cleaning device for a card carrying belt in a card type public telephone, comprising: a motor that drives the solenoid for a predetermined time so as to contact the belt; and a solenoid drive circuit. 3. The cartridge according to claim 1, further comprising a cartridge for accommodating the polishing belt, the take-up roller, and a roller around which the polishing belt is wound, the cartridge cleaning the card transport belt. A cleaning device for a card carrying belt in a card-type public telephone, which is removable from the device.