JP7142448B2 - Coin laundry machine and method of operating the coin laundry machine - Google Patents

Description

The embodiments of the present invention relate to a coin laundry machine and a coin laundry machine operating method for washing and drying laundry such as clothes and sheets in response to payment of a usage fee.

Laundromats such as washing and drying machines process laundry through a plurality of processes. In the laundry process, the laundry is processed through a washing process, a rinsing process, a dehydration process, and the like. In the drying process, the laundry is processed through a drying process, a cooling process, and the like.
In a washing/drying machine, a washing process, a rinsing process, a dehydrating process, a drying process, and a cooling process are continuously executed to perform washing processing and drying processing on the laundry.

Japanese Patent Application Laid-Open No. 2005-341981

It takes several tens of minutes to an hour for the washing process and the drying process. Therefore, the laundry may be left inside the washer/dryer even after the user has left the laundromat and finished washing. At this time, if the laundry is taken out of the washing/drying machine or the like by a third party, the user may feel uncomfortable or there is a risk of theft.
Therefore, some washing and drying machines have a function of locking the opening/closing door to prevent third parties from touching the laundry.
However, for operators of laundromats, locking the opening/closing door to prevent third parties from taking out the laundry increases the amount of time that the laundry is left inside the washer/dryer, etc. There is a risk that the rate will decline.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-described circumstances, and aims to provide a laundromat that can prevent a third party from taking out the laundry and prevent a decrease in the operating rate of the washing and drying machines. do.

A coin laundry device according to an embodiment is provided in a laundry device for washing or drying laundry, and includes an opening/closing door arranged at an inlet for putting in and out the laundry, a door lock for locking/unlocking the opening/closing door, and the laundry. a control unit that controls the apparatus and determines whether or not charge completion information has been input from the charge reception unit, wherein the control unit responds to a start command after the washing or drying course is selected; The door lock is locked to start the laundry processing operation, and within a set time from the completion of the laundry processing operation, a first usage fee is calculated at least according to the processing time from the start to the completion of the laundry processing operation. Then , when the set time has passed since the completion of the laundry processing operation , a second usage fee is calculated by adding the excess fee to the first usage fee, and the usage fee is either the first usage fee or the above The opening/closing door is kept locked by the door lock until the second usage fee is paid in full.

In addition, the coin laundry device of the embodiment includes a drum into which laundry is put , a laundry that supplies hot air to the laundry in the drum, performs washing drying or drying of the laundry, and discharges the hot air out of the drum . In the apparatus , an opening/closing door arranged at an inlet for loading and unloading the laundry, a door lock for locking/unlocking the opening/closing door, a temperature of the hot air discharged out of the drum, or a temperature of the warm air discharged out of the drum A sensor that measures the humidity in the air, and a control unit that controls the laundry device and determines whether payment completion information has been input from a charge reception unit, wherein the control unit controls the washing and drying. Alternatively, in response to a start command after selecting a drying course, the door lock is locked to start the laundry processing operation in the selected course, and the drying state of the laundry is determined based on the measurement value of the sensor. When the completion of the laundry processing operation is determined according to the drying state of the laundry, the usage fee is calculated according to the processing time from the start to the completion of the laundry processing operation, and the usage fee is calculated. The opening/closing door is kept locked by the door lock until the usage fee is paid in full.

Further, in the coin laundry machine of the embodiment, the control unit is configured such that the first usage fee is not paid within a first set time after the laundry processing operation is completed, and the second set time exceeds the first set time. Within, the second charge is calculated by adding the excess charge to the first charge .

Further, in the coin laundry machine of the embodiment , if the second usage fee is not received within the second set time exceeding the first set time, the second usage fee is set to the first usage fee. and the excess charge plus the weighted excess charge corresponding to the excess time from the second set time .

Further, the operation method of the coin laundry machine of the embodiment is provided in a laundry machine for washing or drying laundry, and includes an opening/closing door arranged at an inlet for taking in and out the laundry, and a door for locking/unlocking the opening/closing door. A control method for a coin laundry machine comprising a lock and a control unit that controls the laundry machine and determines whether or not charge payment information has been input from the charge reception unit, wherein after the washing or drying course selection locking the door lock in response to a start command to start the laundry processing operation; and calculating a second usage fee by adding an excess fee to the first usage fee when the set time has elapsed since the completion of the laundry processing operation. and a step of keeping the opening/closing door locked by the door lock until the first usage fee or the second usage fee as the usage fee is paid in full.

In addition, a method of operating a coin laundry machine according to an embodiment includes a drum for receiving laundry, supplying hot air to the laundry on the drum, washing and drying the laundry, and discharging the hot air out of the drum. an opening/closing door arranged at an inlet for loading and unloading the laundry; a door lock for locking/unlocking the opening/closing door; and a sensor for measuring humidity in the air, and a method for operating a coin laundry machine for controlling the washing/drying or drying, wherein the step of selecting the washing/drying or drying course; After that, locking the door lock to start the laundry processing operation in the selected course; determining the drying state of the laundry based on the measurement value of the sensor; determining the completion of the laundry processing operation according to the determination of the laundry drying state; and determining the processing time from the start to the completion of the laundry processing operation when the completion of the laundry processing operation is determined. and a step of keeping the opening/closing door locked by the door lock until the calculated fee is paid in full.

It is a front view showing the coin laundry of the embodiment. It is a mimetic diagram showing a schematic structure of a laundromat. It is a block diagram showing a control system of a laundromat. It is a flowchart figure which shows laundry processing operation.

The coin laundry 1 of the embodiment will be described below with reference to the drawings. In each figure, the same code|symbol is attached|subjected about the same structure.

[Coin laundry 1]
FIG. 1 is a front view showing a coin laundry 1 according to an embodiment.
FIG. 2 is a schematic diagram showing a schematic configuration of the coin laundry 1. As shown in FIG.
FIG. 3 is a block diagram showing the control system of the coin laundry 1. As shown in FIG.

The coin laundry 1 is a washing and drying machine or the like that requires payment of a usage fee.
A laundromat 1 includes a rectangular parallelepiped housing 2 and an outer body 3 and a drum 4 arranged inside the housing 2 .
The outer body 3 is a horizontal cylindrical body with a bottom, and is arranged inside the housing 2 . The drum 4 is also a horizontal cylindrical body with a bottom, and is arranged inside the outer barrel 3 .

The housing 2 has a circular panel opening 2b approximately in the center of the front panel 2a. The outer trunk 3 has an input port 6 for loading and unloading laundry such as clothes and sheets, and is fixed so that the input port 6 is exposed to the panel opening 2b.
An opening/closing door 7 for opening/closing the input port 6 is arranged on the front panel 2a. The opening/closing door 7 has a disk shape capable of closing the inlet 6, and has a window in the central portion. A sealing material (not shown) is arranged between the opening/closing door 7 and the edge of the inlet 6 to improve airtightness.

A handle-type door lock 8 is provided at the edge of the inlet 6 . The user can use the handle to open and close the opening/closing door 7, latch the opening/closing door 7 (empty tightness), and unlatch it.
Further, the door lock 8 controls locking and unlocking of the open/close door 7 by a control unit 30 which will be described later. That is, the control unit 30 can fix the handle while the open/close door 7 is closed and latched. In other words, the control unit 30 can keep the opening/closing door 7 locked by the door lock 8 and the inlet 6 sealed.
On the other hand, when the control unit 30 unlocks the opening/closing door 7, the handle can be pulled manually to release the latch, and the opening/closing door 7 can be opened to open the input port 6.例文帳に追加
The door lock 8 is also provided with an open/close sensor 41 for detecting a state in which the open/close door 7 is closed and latched. The open/close sensor 41 outputs detection data to the controller 30 .

A water supply pipe 15 and a drain pipe 16 are connected to the outer barrel 3 . The outer shell 3 stores water supplied from the water supply pipe 15 and discharges the stored water to the outside of the coin laundry 1 through the drain pipe 16 .
The outer barrel 3 is provided with a water level sensor 42 for detecting the water level. The water level sensor 42 outputs detection data to the control section 30 .

A hot air supply path 20 for supplying hot air for drying and a hot air discharge path 21 are connected to the outer barrel 3 .
A heating unit 22 , an overheat prevention device, a safety device, and the like are arranged in the hot air supply path 20 . Heating unit 22 is a gas burner.
A filter, a fan 23, an overheat prevention device, a check damper, and the like are arranged in the hot air discharge path 21 .
When the fan 23 is rotated, the air introduced into the hot air supply path 20 is heated by the heating unit 22 and the hot air is supplied to the outer shell 3 . Thereby, the laundry thrown into the drum 4 is dried. Then, air containing moisture is introduced from the outer shell 3 into the warm air discharge path 21 and discharged to the outside.

A temperature sensor 18 is arranged downstream of the hot air discharge path 21 . A temperature sensor 18 measures the temperature of the air introduced from the outer shell 3 into the hot air discharge path 21 . The temperature sensor 18 then outputs measurement data to the controller 30 .

The drum 4 is arranged with a gap with respect to the outer drum 3 so that its opening coincides with the inlet 6 of the outer drum 3 . The drum 4 has a rotating shaft (not shown) extending rearward, and this rotating shaft is rotatably supported by the outer drum 3 .
A rotary drive unit including a motor 28 and the like is connected to the rear end of the rotary shaft. The rotary drive section transmits the rotation of the motor 28 to the rotary shaft via a pulley and a belt to drive the drum 4 to rotate.

An operation input unit 11 is arranged on the upper part of the front panel 2a. The operation input unit 11 is connected to the control unit 30, and the user operates the laundry processing operation.
A display unit is arranged adjacent to the operation input unit 11 . The display unit displays information and the like regarding the laundry processing operation. The display unit displays, for example, the usage time of the coin laundry 1 and usage charges (including excess charges and weighted excess charges) as information related to the laundry processing operation.

A fee reception unit 12 is arranged on the right side of the operation input unit 11 . A fee reception unit (postpaid fee reception unit) 12 receives a usage fee after the laundry processing operation of the coin laundry 1 is completed.
The fee reception unit 12 can accept payment by credit card, various points, etc., as well as money as the usage fee.
When the user puts money or the like into the fee reception unit 12, the fee reception unit 12 calculates the amount of money or the like that has been put, and if the usage fee (including the excess fee and the weighted excess fee) is satisfied, the fee is calculated. Completion information is output to the control unit 30 . Note that the fee receiving unit 12 and the control unit 30 may cooperate to determine whether the fee has been paid off.

Inside the housing 2, a control unit 30 that controls the coin laundry 1 is arranged. The control unit (laundry processing completion determination unit, charge determination unit) 30 is configured by a microcomputer including, for example, a CPU, ROM, RAM, and the like.
The control unit 30 executes control for performing a laundry processing operation (washing processing, drying processing) for the laundry put into the drum 4 through a plurality of preset operation steps.

[Laundry processing operation: Post-paid usage fee]
Next, the laundry processing operation of the coin laundry 1 will be described. In particular, deferred payment of usage fees will be described.
FIG. 4 is a flow chart diagram showing the laundry processing operation.

First, the user opens the opening/closing door 7 of the laundromat 1 and puts laundry into the drum 4 from the inlet 6 (Step 1). Then, the user closes the opening/closing door 7 and latches the opening/closing door 7 with the door lock 8 .
Further, the user operates the operation input unit 11 to select a washing course (laundry processing) or the like, and then presses an operation start button (Step 2).

When the operation start button of the operation input unit 11 is pressed, the control unit 30 confirms the latch of the open/close door 7 based on the input signal from the open/close sensor 41 of the open/close door 7, and locks the open/close door 7 with the door lock 8. Lock (Step 3).
The control unit 30 receives input signals from the water level sensor 42 and the temperature sensor 18 of the outer shell 3, and controls the control valves of the water supply pipe 15 and the drain pipe 16, the motor 28, the fan 23, the heating unit 22, and the like. Then, the laundry processing operation (washing processing, drying processing) is performed (Step 4).

In the washing process of the washing process, the control unit 30 supplies a predetermined amount of water from the water supply pipe 15 to the outer drum 3, and causes the motor 28 of the rotation driving unit to rotate the drum 4 forward/reverse, strong/weak, and the like.

After the washing process is finished, the controller 30 starts the rinsing process. In the rinsing process, the control valve of the drain pipe 16 is opened to drain the water stored in the outer shell 3 from the drain pipe 16, and then a predetermined amount of water is supplied to the outer shell 3 from the water supply pipe 15 again. to rotate.
When the rinsing is finished, the control unit 30 opens the control valve of the drain pipe 16 to discharge all the water stored in the outer body 3 from the drain pipe 16 .

When the rinsing process ends, the control unit 30 starts the dewatering process. In the dehydration process, the drum 4 is rotated in one direction by the rotation driving portion while the control valve of the drain pipe 16 is open, and the laundry is dehydrated by the centrifugal force.

Next, the control unit 30 shifts from the washing process to the drying process.
First, in the drying process, the control section 30 drives the fan 23 and the heating unit 22 while rotating the drum 4 in one direction by the rotation driving section.
That is, the controller 30 drives the fan 23 to supply the air (warm air) heated by the heating unit 22 to the outer barrel 3 through the warm air supply path 20 . The laundry (dehydrated laundry) on the drum 4 is exposed to this warm air and dried. Then, the control unit 30 drives the fan 23 to exhaust the warm air containing the moisture evaporated from the laundry to the outside through the warm air exhaust path 21 .

In the drying process, the controller 30 determines the dry state of the laundry based on the input signal from the temperature sensor 18 (Step 5). For example, when the measured value (temperature) of the temperature sensor 18 is 60° C. or higher, it is determined that the laundry is dried.

When the control unit 30 determines that the laundry is dried, the cooling process is performed. In the cooling step, the heating unit 22 is stopped, and only the fan 23 is driven while the drum 4 is rotated in one direction by the rotary drive section. Then, the laundry is cooled to a temperature that does not burn the user, and the laundry processing operation is completed.
Thus, the controller 30 determines completion of the laundry processing operation based on the input signal from the temperature sensor 18 .

Next, the control unit 30 determines the usage fee according to the contents up to the completion of the laundry processing operation (Step 6). For example, if the amount of laundry is 10 kg, the washing process takes 20 minutes, and the drying process takes 40 minutes, the control unit 30 determines the usage fee to be 1600 yen. Then, the control unit 30 displays this amount on the operation input unit 11 to prompt the user to pay the fee.
The usage fee is not limited to the amount corresponding to the time from the start to the completion of the laundry processing operation. The usage fee may be an amount corresponding to the amount of water, gas, electric power, etc. required for the laundry processing operation.

Next, the control unit 30 starts timing after the laundry processing operation is completed. Then, the control unit 30 determines the elapsed time from the completion of the laundry processing operation based on this time measurement (Step 7).
This timing is used to calculate overage charges (including weighted overage charges) according to the amount of time the laundry was left unattended. The control unit 30 keeps time, for example, in units of one minute.

Next, the control unit 30 performs presence/absence of an excess charge and addition according to the elapsed time measured in Step 7 (Steps 8 to 10).

When it is determined in Step 7 that the elapsed time after the laundry processing operation is completed is less than the predetermined time, no excess charge is generated (Step 8).
The predetermined time is, for example, 10 minutes. In other words, the usage fee remains 1600 yen from 0 minutes to 9 minutes of elapsed time.
If the excess charge is added immediately after the laundry processing operation is completed, it will impose an excessive burden on the user, so a grace period (predetermined time) of about 10 minutes is set.
Next, as will be described later, the process proceeds to step 11 to determine whether or not payment completion information has been input.

In Step 7, when it is determined that the elapsed time from the completion of the laundry processing operation is a predetermined time (for example, 10 minutes), an excess fee is added (Step 9).
When the elapsed time reaches 10 minutes, for example, 100 yen is added as an excess charge. Therefore, the usage charge is set at 1,700 yen, which is the sum of 1,600 yen determined in Step 6 and the excess charge of 100 yen.
The control unit 30 displays the usage fee (1700 yen) on the display unit and prompts the user to pay the fee.
Next, as will be described later, the process proceeds to step 11 to determine whether or not payment completion information has been input.

In Step 7, when it is determined that the elapsed time from the completion of the laundry processing operation exceeds a predetermined time (for example, 10 minutes), a weighted excess fee is added (Step 10).
When the elapsed time reaches 11 minutes or more, a weighted excess charge of, for example, 10 yen per minute is added. The weighted excess charge is a charge according to the time (excess time) after a predetermined time has elapsed.
Since Step 10 is a process performed after Step 9, the usage charge is set to 1710 yen, which is 1700 yen plus the weighted excess charge of 10 yen.
The control unit 30 displays the usage fee (1710 yen) on the display unit and prompts the user to pay the fee.
Next, as will be described later, the process proceeds to step 11 to determine whether or not payment completion information has been input.

After Steps 8-10, the control section 30 calculates the total charge. Then, the control unit 30 determines whether or not the user has put money into the fee receiving unit 12 and paid the total fee (usage fee, excess fee, weighted excess fee). That is, the control unit 30 determines whether or not payment information has been input from the charge receiving unit 12 (Step 11).

When it is determined in step 11 that the total charge has been paid, the door lock 8 is unlocked (step 12).
Thereby, the user can open the opening/closing door 7 to open the input port 6 and take out the laundry from the drum 4 (Step 13).

On the other hand, when it is determined in step 11 that the total charge has not been paid, the control section 30 returns to step 7 and determines the elapsed time since the laundry processing operation was completed.
For example, if the total charge has not been paid even after 15 minutes have passed since the laundry processing operation was completed, Step 10 is processed five times through Step 8 and Step 9. Therefore, the total charge is set at 1,750 yen, which is 1,600 yen plus an excess charge of 100 yen and a weighted excess charge of 50 yen.
The control unit 30 displays the total charge (1750 yen) on the display unit and prompts the user to pay the charge.
In this way, the control unit 30 continues to lock the opening/closing door 7 with the door lock 8 until the charge completion information of the total charge (usage charge, excess charge, weighted excess charge) is input from the charge reception unit 12 (Step 7). ~11).

Then, as described above, the door lock 8 is unlocked for the first time when the user puts the total charge into the charge reception unit 12 and pays the bill completely (Step 12).
Thereby, the user can open the opening/closing door 7 to open the input port 6 and take out the laundry from the drum 4 (Step 13).

As described above, the laundromat 1 includes the door lock 8 for locking and unlocking the opening/closing door 7, and the charge receiving section 12 for receiving usage charges. Then, the opening/closing door 7 is kept locked by the door lock 8 until the charge completion information is received from the charge reception part 12.例文帳に追加
Therefore, it is possible to prevent a third party from taking out the laundry after the laundry processing operation is completed.

In addition, the control unit 30 determines the completion of the laundry processing operation, and determines the usage fee according to the details up to the completion of the laundry processing operation. Therefore, an appropriate fee can be set.
Moreover, since the door lock 8 is unlocked and the opening/closing door 7 is opened by post-payment of the usage fee, there is no need to prepare a special key or the like, and an increase in device cost and operating cost can be suppressed.

Further, when the usage fee is not paid within a predetermined time after the laundry processing operation is completed, the control unit 30 adds an excess fee to the usage fee. Therefore, even if the laundry is left in the laundromat 1 and the operating rate is lowered, a fee income corresponding to the time the laundry is left in the laundromat 1 can be obtained. Therefore, it can contribute to the increase in sales of the coin laundry 1 and the stability of management.

In addition, since the control unit 30 adds a weighted excess charge corresponding to the excess time after the predetermined time has passed to the excess charge, it is possible to impose a mental burden on the user and encourage the user to pay the charge.

Moreover, since the control unit 30 determines the completion of the laundry processing operation based on the measured value of the temperature sensor 18, it is possible to suppress unnecessary drying processing.
A user can use the coin laundry 1 at a low usage fee. Also, for the manager, the operating rate of the laundromat 1 is improved, which contributes to an increase in sales and a stable management.

Embodiments of the invention are provided by way of example and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and its equivalents.

In the above-described embodiment, the laundromat 1 capable of executing the washing process and the drying process has been exemplified and explained, but the present invention is not limited to this. For example, the present invention may be applied to a washing machine that only performs washing processing on laundry, or may be applied to a dryer that performs only drying processing on laundry. .

In the above embodiment, a washing type device that uses water to wash clothes has been exemplified and explained, but the present invention is not limited to this. For example, the present invention may be applied to a dry-cleaning type washing machine (washing/drying machine) that performs washing using a solvent such as a petroleum-based solvent.

In the above-described embodiment, the case where the measured value (temperature) of the temperature sensor 18 is equal to or higher than a predetermined temperature has been described as the criterion for determining the completion of the laundry processing operation (drying of the laundry), but the present invention is not limited to this.
For example, the rate of change in the measured value of the temperature sensor 18 (the rate of change in temperature per unit time) may be used as the criterion for determination. Both the measured value and the rate of change of the measured value may be used.

In the above embodiment, the case where the temperature sensor 18 is used has been described, but a humidity sensor may be used. Both temperature sensor 18 and humidity sensor may be used.

In the above embodiment, the case where the control unit 30 determines the usage fee after the laundry processing operation is completed has been described, but the present invention is not limited to this. For example, the usage fee may be determined by estimating the processing time and the like from the start to the completion of the laundry processing operation. For example, the usage fee may be determined in a plurality of times.

In the above embodiment, the case where no excess charge is incurred within a predetermined time (10 minutes) after the laundry processing operation is completed has been described, but the present invention is not limited to this. The excess charge may be charged immediately after the laundry processing operation is completed.

In the above embodiment, a case has been described where the excess charge is increased according to time (adding a weighted excess charge), but the present invention is not limited to this. The excess charge may be a fixed amount.
In addition, the case where the weighted excess charge of a fixed amount is added in proportion to the excess time is not limited to the case where the weighted excess charge is gradually increased exponentially.

Although the case where the operation input unit 11 and the fee reception unit 12 are arranged in the housing 2 has been described, the present invention is not limited to this. The operation input unit and the fee reception unit may be arranged separately from the housing. In other words, it is not limited to a separate type in which each laundromat has its own fee reception unit, but may be a so-called centralized payment machine system that accepts operations and payments for a plurality of laundromats.

1 coin laundry
3 Outer body
4 drums
6 Inlet
7 Open/close door
8 door lock
11 Operation input section
12 Charge Receiving Section (Deferred Payment Charge Receiving Section)
18 temperature sensor
30 control unit (laundry processing completion determination unit, usage fee determination unit)

Claims (7)

an opening/closing door provided in a laundry machine for washing or drying laundry and arranged at an inlet for loading and unloading the laundry;
a door lock for locking and unlocking the opening/closing door;
a control unit that controls the laundry machine and determines whether or not charge payment information has been input from the charge reception unit;
wherein the control unit comprises
locking the door lock and starting the laundry processing operation in response to a start command after selecting the washing or drying course;
Within a set time from the completion of the laundry processing operation , calculating at least a first usage fee according to the processing time from the start to the completion of the laundry processing operation,
When the set time has passed since the completion of the laundry processing operation , calculating a second usage fee by adding an excess fee to the first usage fee,
The coin laundry machine keeps the opening/closing door locked by the door lock until the first usage fee or the second usage fee is paid as the usage fee. When the first usage fee is not paid within the first set time after the completion of the laundry processing operation, the control unit pays the first usage fee within the second set time exceeding the first set time. calculating the second usage fee by adding the excess fee;
If the second usage fee is not paid within the second set time exceeding the first set time, the second usage fee is the first usage fee, the excess fee, and the excess time from the second set time. shall be a charge plus a weighted excess charge according to
A coin laundry machine according to claim 1. The first usage fee further includes the amount of water used from the start to the completion of the laundry processing operation, or the amount of gas used from the start to the completion of the laundry processing operation, or the start to completion of the laundry processing operation. 2. The coin laundry machine according to claim 1, wherein the power consumption is calculated according to the amount of electric power used up to . An opening/closing door provided in a laundry device for washing or drying laundry and arranged at an input port for putting in and out the laundry, a door lock for locking/unlocking the opening/closing door, and controlling the laundry device, A control method for a coin laundry machine comprising a control unit that determines whether or not charge completion information is input from a reception unit,
a step of locking the door lock and starting the laundry processing operation in response to a start command after selecting the washing or drying course;
calculating a first usage fee corresponding to at least the processing time from the start to the completion of the laundry processing operation within a set time from the completion of the laundry processing operation;
a step of calculating a second usage fee by adding an excess fee to the first usage fee when the set time has elapsed since the completion of the laundry processing operation;
a step of keeping the opening/closing door locked by the door lock until the first usage fee or the second usage fee is paid as a usage fee;
A method of operating the coin laundry machine. The first usage fee further includes the amount of water used from the start to the completion of the laundry processing operation, or the amount of gas used from the start to the completion of the laundry processing operation, or the start to completion of the laundry processing operation. 5. The method of operating a coin laundry machine according to claim 4, wherein the calculation is performed according to the amount of electric power used up to. A laundry machine that supplies a drum for receiving laundry , supplies hot air to the laundry on the drum , performs washing drying or drying of the laundry, and discharges the hot air to the outside of the drum ,
an opening/closing door arranged at the loading port for loading and unloading the laundry;
a door lock for locking and unlocking the opening/closing door;
a sensor for measuring the temperature of the hot air discharged outside the drum or the humidity in the air discharged outside the drum ;
a control unit that controls the laundry machine and determines whether or not charge payment information has been input from the charge reception unit;
wherein the control unit comprises
locking the door lock in response to a start command after selecting the washing/drying or drying course and starting the laundry processing operation in the selected course ;
Based on the measured value of the sensor, determine the dry state of the laundry,
When the completion of the laundry processing operation is determined according to the drying state of the laundry, a usage fee is calculated according to the processing time from the start to the completion of the laundry processing operation,
The coin laundry machine keeps the opening/closing door locked by the door lock until the usage fee is paid in full. a drum for receiving laundry;
a mechanism for supplying hot air to the laundry on the drum, washing and drying the laundry or drying the laundry, and discharging the hot air to the outside of the drum;
an opening/closing door arranged at the loading port for loading and unloading the laundry;
a door lock for locking and unlocking the opening/closing door;
a sensor for measuring the temperature of the hot air discharged outside the drum or the humidity in the air discharged outside the drum;
has
In the method for operating a coin laundry machine that controls washing and drying or drying,
a step of selecting the washing/drying or drying course;
After the course is selected in this step, locking the door lock and starting the laundry processing operation in the selected course;
determining the dry state of the laundry based on the sensor readings;
determining the completion of the laundry processing operation according to the determination of the drying state of the laundry;
calculating a fee according to the processing time from the start to the completion of the laundry processing operation when determining the completion of the laundry processing operation;
a step of keeping the opening/closing door locked by the door lock until the calculated fee is paid in full;
A method of operating a coin laundry machine having

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