JP5670847B2 - washing machine - Google Patents

Description

  The present invention relates to a washing machine.

  In Patent Document 1, a cleaning tank for storing an object to be cleaned, a cleaning water supply pipe for supplying cleaning water into the cleaning tank, a cleaning nozzle for injecting cleaning water to the object to be cleaned stored in the cleaning tank, A cleaning machine is disclosed that includes a cleaning pump that sends cleaning water in the cleaning tank to a cleaning nozzle and a drain pump that drains the cleaning water in the cleaning tank. In this cleaning machine, a water supply process for supplying cleaning water at a predetermined water level into a cleaning tank from a cleaning water supply pipe, and a cleaning process for cleaning the supplied cleaning water by injecting the cleaning water from a cleaning nozzle onto an object to be cleaned. The cleaning process includes a draining process in which the cleaning water used for cleaning is drained by a drain pump, and the water feeding process, the rinsing process including the cleaning process and the draining process, and the drying process are performed in the same manner as the cleaning process. The cleaning program is running.

JP 2002-263049 A

  In the washing machine as described above, when the above washing program is executed when checking the operation at the inspection stage in the final stage of factory production or checking the operation at the time of maintenance under the user, water supply treatment, washing treatment In addition, in order to execute the two cleaning steps including the waste water treatment and the drying step, it takes a long time to check the operation. In particular, if the time required for operation check during maintenance under the user becomes longer, the time during which the user cannot use the washing machine becomes longer and the work time of the worker who has come to the maintenance becomes longer. There was a problem that the work cost due to the increase. The present invention aims to solve such problems.

In order to solve the above-mentioned problems, the present invention accommodates a washing object and a washing tank having a water storage part for storing washing water in the lower part, a washing water supply pipe for supplying washing water to the water storage part, and a washing tank. A cleaning nozzle for injecting cleaning water to the object to be cleaned, a cleaning pump for sending the cleaning water in the water storage section to the cleaning nozzle, a drainage means for draining the cleaning water in the water storage section, an operation panel for operating the cleaning machine, A water supply process for supplying cleaning water from the cleaning water supply pipe to the water storage unit, a cleaning process for cleaning the supplied cleaning water by spraying the object to be cleaned from the cleaning nozzle with a cleaning pump, and draining the cleaning water used for cleaning in the washing machine having a control device for controlling so as to perform a washing program a cleaning process comprising a waste water treatment of waste water comprising at least one or more times by means, when the controller is running washing program, the control panel There is provided a washing machine, characterized in that it comprises a skip means for skipping the cleaning process of the cleaning process based on the operation by.

In the cleaning machine configured as described above, the control device includes a skip unit that skips the cleaning process of the cleaning process based on the operation by the operation panel when the cleaning program is being executed. When the cleaning program is executed for checking, the time for checking the operation can be shortened by skipping the cleaning process of the cleaning process by the skip means.

  In the cleaning machine configured as described above, the cleaning program includes the cleaning process two or more times, and each cleaning process of the cleaning process including two or more times may be selectively skipped by the skip unit. In such a case, when checking the operation of the cleaning machine, it is possible to selectively skip only the unnecessary cleaning process of the two or more cleaning processes. After checking the operation of the cleaning process, the time for checking the operation can be shortened.

  In the washing machine configured as described above, when the skip unit is executed, the calculation unit includes a calculation unit that calculates a remaining time until the cleaning program is completed, and a display unit that displays the remaining time calculated by the calculation unit. It is preferable to execute the calculation means and display the remaining time on the display unit, and in this case, it is possible to know the accurate remaining time that is shortened by skipping the cleaning process.

1 is a schematic view of a washing machine according to the present invention. It is a block diagram of a control apparatus. It is a figure which shows an operation panel. It is a flowchart which shows the washing | cleaning program of an alkaline detergent course.

  Hereinafter, an embodiment of a washing machine according to the present invention will be described with reference to the drawings using a washing machine for washing a medical instrument. The cleaning machine 10 according to the present invention includes a cleaning tank 20 having a water storage part 21 that stores an object to be cleaned such as a medical instrument and stores cleaning water in a lower part, and a water supply that supplies the cleaning water to the water storage part 21 of the cleaning tank 20. The cleaning nozzles 23 and 24 for injecting the cleaning water to the medical device accommodated in the pipe 27, the hot water supply pipe 28 (cleaning water supply pipe), the cleaning tank 20, and the cleaning water in the water storage section 21 are supplied to the cleaning nozzles 23 and 24. A drainage pump 30 and a drainage pump 31 interposed in the drainage pipe 30 are provided as drainage means for draining the flushing water in the water storage section 21. Thus, the cleaning machine 10 includes a water supply process for supplying cleaning water from at least one of the water supply pipe 27 and the hot water supply pipe 28 to the water storage unit 21, and the supplied cleaning water by the cleaning pump 26. A cleaning process (a pre-cleaning process, a main cleaning process, and two times of cleaning processes) including a cleaning process for spraying and cleaning the medical device from the drain pipe 30 by the drain pump 31. And a controller 40 that controls to execute a cleaning program including four times (at least once), and the controller 40 skips at least one cleaning process of each cleaning step of the cleaning program. It has. Below, this washing machine 10 is explained in full detail.

  As shown in FIG. 1, the cleaning machine 10 includes a cleaning tank 20 in a housing 11, and the cleaning tank 20 integrally includes a water storage unit 21 that stores cleaning water in a lower part. A temperature sensor 22 that detects the temperature of the cleaning water is provided at the bottom of the water storage section 21 of the cleaning tank 20. The front opening of the cleaning tank 20 is provided with a door (not shown) for taking in and out a rack (not shown) for storing a medical instrument, and this door is supported by the housing 11 so as to be rotatable around its lower end. Yes.

  Cleaning nozzles 23 and 24 for jetting cleaning water are rotatably supported on the upper and lower surfaces of the cleaning tank 20. These cleaning nozzles 23 and 24 are connected to a circulation pipe 25 led out from a water storage section 21 provided in the lower part of the cleaning tank 20, and a cleaning pump 26 is interposed in the circulation pipe 25. The cleaning water in the water storage unit 21 is sent to the cleaning nozzles 23 and 24 through the circulation pipe 25 by the operation of the cleaning pump 26. Spray toward the instrument. The cleaning water sprayed on the medical instrument falls and returns to the water storage unit 21.

  A water supply port 20 a and a hot water supply port 20 b for supplying cleaning water are provided on the upper rear wall of the cleaning tank 20. A water supply pipe 27 constituting a cleaning water supply pipe is connected to the water supply port 20a, and the water supply pipe 27 is connected to a water supply source (not shown) such as water supply. A water supply valve 27 a is interposed in the water supply pipe 27, and water from the water supply source is supplied to the water storage unit 21 of the cleaning tank 20 through the water supply pipe 27 when the water supply valve 27 a is opened. A hot water supply pipe 28 constituting a cleaning water supply pipe is connected to the hot water supply port 20b, and the hot water supply pipe 28 is connected to a hot water supply source such as a water heater 29. A hot water supply valve 28 a is interposed in the hot water supply pipe 28, and hot water in the water heater 29 is supplied to the water storage unit 21 of the washing tank 20 through the hot water supply pipe 28 when the hot water supply valve 28 a is opened.

  A drain pipe 30 is connected to a drain port 21 a formed on the bottom surface of the water storage section 21 of the cleaning tank 20, and a drain pump 31 is interposed in the drain pipe 30. Wash water in the water storage unit 21 is discharged to the outside through the drain pipe 30 by the operation of the drain pump 31. A water level detection tank 32 is connected to the water storage section 21 of the cleaning tank 20, and a float switch (water level sensor) 33 is accommodated in the water level detection tank 32. The float switch 33 detects that the wash water in the water storage unit 21 is equal to or higher than a predetermined water level L required for cleaning. The float switch 33 is turned on when the water level is equal to or higher than the predetermined water level L, and is turned off when the water level is lower than the predetermined water level L.

  A detergent supply device 34 that supplies detergent is connected to the cleaning tank 20. The detergent supply device 34 is detachably mounted with a detergent tank (not shown) in which detergent is stored, and supplies the detergent in the detergent tank into the cleaning tank 20. In this washing machine 10, an alkaline detergent or an enzyme-containing detergent containing an enzyme such as protease is used, and an alkaline detergent and an enzyme-containing detergent can be selectively used by exchanging a detergent tank storing these detergents. . In addition, as for the detergent containing an enzyme, the use at 50 degrees C or less is suitable as temperature at which enzymes, such as protease, do not deactivate.

  The washing machine 10 includes a control device 40. As shown in FIG. 2, the control device 40 includes a temperature sensor 22, a washing pump 26, a water supply valve 27a, a hot water supply valve 28a, a drainage pump 31, a float switch 33, and A detergent supply device 34 is connected. The control device 40 includes a microcomputer (not shown), and the microcomputer includes a CPU, a RAM, a ROM, and a timer (all not shown) connected via a bus. The CPU controls the operations of the cleaning pump 26, the water supply valve 27a, the hot water supply valve 28a, the drainage pump 31, and the detergent supply device 34 based on the temperature detected by the temperature sensor 22, the on / off signal from the float switch 33, and the timer. Run the cleaning program shown below. The RAM temporarily stores variables and the like necessary for executing the cleaning program, and the ROM stores the cleaning program.

  In the present embodiment, the cleaning program stored in the ROM of the control device 40 includes cleaning programs for an alkaline detergent course and an enzyme-containing detergent course. In addition, each cleaning program sequentially executes a pre-cleaning process, a main cleaning process, and two rinsing cleaning processes. These cleaning processes sequentially execute a water supply process, a cleaning process, and a waste water process. . In each cleaning process of each cleaning program, the pre-cleaning process is a process of removing light stains on the medical instrument without using a detergent, and this cleaning process is fixed to the medical instrument using a detergent. The first rinsing process is a process of mainly rinsing the cleaning water flow paths of the cleaning nozzles 23 and 24, the circulation pipe 25 and the cleaning pump 26, and the second rinsing process is a process of removing dirt. , Mainly a process of rinsing medical instruments.

  The control device 40 is connected to an operation panel 41 provided on the front panel of the housing 11. As shown in FIG. 3, the operation panel 41 has operation buttons such as an operation on / off button 41a, a detergent replacement button 41b, a course switching button 41c, and a start / primary stop 41d, and these operation buttons are used. Thus, a cleaning course using an alkaline detergent or an enzyme-containing detergent is selected, and these cleaning courses are executed and stopped. Further, when the detergent replacement button 41b and the course switching button 41c of the operation panel 41 are continuously pressed for 3 seconds or more, the operation panel 41 outputs a skip signal that causes the control device 40 to skip the cleaning process of the cleaning process. The operation panel 41 has a display unit 41e for displaying the remaining time until the cleaning program is completed.

  The control device 40 includes calculation means for calculating the remaining time until each cleaning program is completed. The calculation means completes the cleaning program from the time required for the water supply time, cleaning time and drainage time of each cleaning process consisting of the pre-cleaning process, the main cleaning process and the two rinsing cleaning processes of the cleaning program selected by the operation panel 41. The remaining time until this is calculated. The control device 40 performs control so that the remaining time calculated by the calculation means is displayed on the display unit 41e of the operation panel 41. In addition, when the skip signal is input from the operation panel 41 and the cleaning process is skipped, the control device 40 executes the calculation means and calculates the remaining time from the completion of the cleaning program to the calculated remaining time. Control is performed to display the time on the display unit 41e.

  Next, a cleaning program for an alkaline detergent course will be described as an example of a cleaning program for the cleaning machine 10. First, the control device 40 causes the pre-cleaning process to be executed in steps 101 to 106. In step 101, the control device 40 calculates the remaining time until the cleaning program is completed by the calculating means, and displays the calculated remaining time on the display unit 41 e of the operation panel 41. In step 102, the control device 40 opens the water supply valve 27a and the hot water supply valve 28a, and starts the water supply process in the pre-cleaning step. Thereby, the water and hot water of the water supply source and the water heater 29 are sent to the water storage part 21 of the cleaning tank 20 through the water supply pipe 27 and the hot water supply pipe 28. In step 103, the control device 40 determines whether or not the wash water in the water storage unit 21 has reached a predetermined water level L by detection of the float switch 33. In step 103, the control device 40 repeatedly determines “NO” until the cleaning water in the water storage unit 21 reaches the predetermined water level L. While the cleaning water in the water storage unit 21 reaches the predetermined water level L, the float switch 33. If an ON signal is input from, “YES” is determined, and the process proceeds to step 104. In step 104, the control device 40 closes the water supply valve 27 a and the hot water supply valve 28 a to end the water supply process.

  Next, in step 105, the control device 40 operates the cleaning pump 26 for 1 minute as a cleaning process in the pre-cleaning process. As a result, the cleaning water in the water reservoir 21 is pumped to the cleaning nozzles 23 and 24 via the circulation pipe 25, and the cleaning nozzles 23 and 24 rotate and spray the cleaning water onto the medical instrument for cleaning. After the cleaning process, in step 106, the control device 40 operates the drain pump 31 for 30 seconds as a predetermined time as a drain process. Thereby, the wash water in the water storage unit 21 is discharged outside the machine through the drain pipe 30.

  When the pre-cleaning process in steps 101 to 106 is completed, the control device 40 causes the main cleaning process to be executed in steps 111 to 120. In this main cleaning process, in step 111, the control device 40 opens the hot water supply valve 28a to start the hot water supply process in the main cleaning process. Thereby, the hot water of the water heater 29 is sent to the water storage part 21 of the cleaning tank 20 through the hot water pipe 28. In step 112, the control device 40 determines whether or not the cleaning water in the water storage unit 21 has reached the predetermined water level L by detection by the float switch 33. In step 112, the control device 40 repeatedly determines “NO” until the cleaning water in the water storage unit 21 reaches the predetermined water level L. While the cleaning water in the water storage unit 21 reaches the predetermined water level L, the float switch 33. If an ON signal is input from, “YES” is determined, and the process proceeds to step 113. In step 113, control device 40 closes hot water supply valve 28a and ends the hot water supply process.

  Next, as a cleaning process in the main cleaning process, the control device 40 causes the detergent supply device 34 to supply an alkaline detergent into the cleaning tank 20 in step 114, and starts the operation of the cleaning pump 26 in step 115. Accordingly, the cleaning water containing the alkaline detergent in the water storage unit 21 is pumped to the cleaning nozzles 23 and 24 via the circulation pipe 25, and the cleaning nozzles 23 and 24 spray the cleaning water onto the medical instrument while rotating. And wash. Next, in step 116, the control device 40 determines whether or not a skip signal is input from the operation panel 41. If no skip signal is input, the control device 40 determines “NO” and proceeds to step 117. In step 117, the controller 40 determines whether or not 3 minutes have elapsed since the operation of the cleaning pump 26 was started. If 3 minutes have not elapsed, the controller 40 determines “NO” and returns to step 116.

  If the normal cleaning process for cleaning the medical instrument is performed, the skip signal is not input from the operation panel 41 to the control device 40. Therefore, when the processes of steps 116 and 117 are repeatedly executed, the cleaning pump 26 is used. When 3 minutes have elapsed from the start of the operation, the control device 40 determines “YES” in step 117 and proceeds to step 118. In step 118, the controller 40 stops the operation of the cleaning pump 26.

  On the other hand, when it is time to check the operation of the washing machine 10, when the processing of steps 116 and 117 is repeatedly executed (or immediately after the processing of step 116), the user can use the detergent replacement button 41b on the operation panel 41. And the course switching button 41c are continuously pressed for 3 seconds or more at a time, a skip signal is input from the operation panel 41, and the control device 40 determines “YES” in step 116 and proceeds to step 118. In step 118, the controller 40 stops the operation of the cleaning pump 26 before 3 minutes have elapsed from the start of the operation of the cleaning pump 26. As described above, the control device 40 immediately stops the operation of the cleaning pump 26 by the input of the skip signal from the operation panel 41 and skips the cleaning process. Next, in step 119, the control device 40 operates the drain pump 31 as a predetermined time for 30 seconds as a drainage process. Thereby, the wash water in the water storage unit 21 is discharged outside the machine through the drain pipe 30. Next, in step 120, the control device 40 recalculates the remaining time until the cleaning program is completed by the calculating means, and displays the recalculated remaining time on the display unit 41 e of the operation panel 41.

  When the main cleaning process in steps 111 to 120 is completed, the controller 40 causes the rinse cleaning process to be executed twice in steps 121 to 130. In this rinsing process, the controller 40 opens the hot water supply valve 28a in step 121 to start the hot water supply process in the rinsing process. Thereby, the hot water of the water heater 29 is sent to the water storage part 21 of the cleaning tank 20 through the hot water pipe 28. In step 122, the control device 40 determines whether or not the cleaning water in the water storage unit 21 has reached the predetermined water level L by the detection of the float switch 33. In step 122, the control device 40 repeatedly determines “NO” until the cleaning water in the water storage unit 21 reaches the predetermined water level L. While the cleaning water in the water storage unit 21 reaches the predetermined water level L, the float switch 33. If an ON signal is input from, “YES” is determined, and the process proceeds to step 123. In step 123, control device 40 closes hot water supply valve 28a and ends the hot water supply process.

  Next, in step 124, the controller 40 starts the operation of the cleaning pump 26 as a cleaning process in the rinse cleaning process. As a result, the cleaning water in the water storage unit 21 is pumped to the cleaning nozzles 23 and 24 via the circulation pipe 25, and the cleaning nozzles 23 and 24 rotate and spray the cleaning water onto the medical instrument to contain the detergent. Rinse the wash water. Next, in step 125, the control device 40 determines whether or not a skip signal is input from the operation panel 41. If the skip signal is not input, it determines “NO” and proceeds to step 126. In step 126, the controller 40 determines whether 15 seconds have elapsed since the operation of the cleaning pump 26 was started. If 15 seconds has not elapsed, the controller 40 determines “NO” and returns to step 125.

  If the normal cleaning process for cleaning the medical instrument is performed, the skip signal is not input from the operation panel 41 to the control device 40. Therefore, when the processes of steps 125 and 126 are repeatedly executed, the cleaning pump 26 is used. When 15 seconds have elapsed from the start of the operation, the control device 40 determines “YES” in step 126 and proceeds to step 127. In step 127, the control device 40 stops the operation of the cleaning pump 26.

  On the other hand, when the operation of the washing machine 10 is to be confirmed, when the processes of steps 125 and 126 are repeatedly executed (or immediately after the process of step 125), the user replaces the detergent replacement button 41b on the operation panel 41. And the course switching button 41c are continuously pressed for 3 seconds or more at a time, a skip signal is input from the operation panel 41, and the control device 40 determines “YES” in step 125 and proceeds to step 127. In step 127, the control device 40 stops the operation of the cleaning pump before 15 seconds have elapsed from the start of the operation of the cleaning pump 26. As described above, the control device 40 immediately stops the operation of the cleaning pump 26 by the input of the skip signal from the operation panel 41 and skips the cleaning process. Next, in step 128, the control device 40 operates the drain pump 31 for 30 seconds as a predetermined time as drainage treatment. Thereby, the wash water in the water storage unit 21 is discharged outside the machine through the drain pipe 30. Next, in step 129, the control device 40 recalculates the remaining time until the cleaning program is completed by the calculating means, and displays the recalculated remaining time on the display unit 41 e of the operation panel 41. In step 130, the control device 40 determines whether or not the rinsing process has been executed twice. If not, the control device 40 determines “NO” and executes the processing in steps 121 to 129 described above. . On the other hand, if the rinse cleaning process is executed twice, the control device 40 determines “YES” in step 130 and ends the cleaning program by the alkaline detergent course.

  In the above-described cleaning machine 10, the control device 40 includes skip means for skipping each cleaning process of the main cleaning process and the two rinsing cleaning processes of the cleaning program, so that cleaning is performed to check the operation of the cleaning machine 10. When the program is executed, each cleaning process of the main cleaning process and the two rinsing cleaning processes can be skipped by the skip means, and the operation confirmation time can be shortened. In this embodiment, the skip means skips the cleaning process of the main cleaning process and the two rinsing cleaning processes. However, the present invention is not limited to this, and the cleaning of the pre-cleaning process is further performed. The processing may be skipped, and in this way, the operation confirmation time can be further shortened. In another embodiment, the cleaning process of the main cleaning process having a long cleaning time may be skipped without skipping the cleaning process of the rinsing cleaning process.

  Further, in the cleaning machine 10, the cleaning program includes a pre-cleaning process, a main cleaning process, and two rinsing processes, and the cleaning process and the two rinsing processes of the main cleaning process having a long cleaning time among the cleaning processes. The cleaning process in the cleaning process is selectively skipped by the skip means. Thereby, when confirming the operation of the cleaning machine 10, it is possible to confirm the operation of the cleaning process when the cleaning process is performed in the pre-cleaning process, and the long cleaning process of the main cleaning process and the two rinsing process steps are performed. The time for checking the operation can be effectively shortened by skipping the cleaning process.

  Further, in this cleaning machine 10, the skip means is executed by the operation panel 41 that operates the cleaning machine 10. Therefore, the skip means can be easily executed by the operation of the operation panel 41. Further, during each cleaning process of the main cleaning process and the two rinsing cleaning processes, the skip means is executed by pressing both the detergent replacement button 41b and the course switching button 41c of the operation panel 41 for 3 seconds or more at a time. Therefore, it is possible to prevent the cleaning process from being erroneously skipped by making a mistake in pressing the buttons on the operation panel 41 during normal cleaning. Further, since the skip means for skipping the cleaning process of the main cleaning process is executed using the existing button on the operation panel 41, the cost is not increased without changing the operation panel 41.

  Further, in the cleaning machine 10, the control device 40 includes a calculation unit that calculates the remaining time until the cleaning program is completed, and the operation panel 41 includes a display unit 41e that displays the remaining time calculated by the calculation unit. The controller 40 executes the calculation means when the skip means is executed and displays the remaining time on the display unit 41e of the operation panel 41. Therefore, the controller 40 can skip the cleaning process and know the accurate remaining time. Can do.

  In the present embodiment, the water supply pipe 27 and the hot water supply pipe 28 are used as the cleaning water supply pipe for supplying the cleaning water to the water storage unit 21, but the present invention is not limited to this, and the water supply pipe 27 or the hot water supply pipe is used. The cleaning water may be supplied to the water storage unit 21 only by any one of 28, and the same operation effect as the present invention can be obtained also in this way.

  DESCRIPTION OF SYMBOLS 10 ... Washing machine, 20 ... Cleaning tank, 21 ... Water storage part, 23, 24 ... Cleaning nozzle, 26 ... Cleaning pump, 27, 28 ... Cleaning water supply pipe (water supply pipe, hot water supply pipe), 30, 31 ... Drainage means ( Drain pipe, drain pump), 40 ... control device.

Claims (3)

A washing tub having a water storage section for storing an object to be washed and storing washing water at the bottom;
A cleaning water supply pipe for supplying cleaning water to the water reservoir;
A cleaning nozzle for injecting cleaning water onto an object to be cleaned contained in the cleaning tank;
A cleaning pump for sending the cleaning water of the water reservoir to the cleaning nozzle;
Drainage means for draining the wash water in the water reservoir;
An operation panel for operating the washing machine;
Water supply processing for supplying cleaning water from the cleaning water supply pipe to the water storage unit, cleaning processing for cleaning the supplied cleaning water by spraying the object to be cleaned from the cleaning nozzle by the cleaning pump, and cleaning In a washing machine comprising a control device that controls to execute a washing program including at least one washing step comprising a wastewater treatment for draining the washed water that has been drained by the drainage means,
The cleaning device includes a skip unit that skips a cleaning process of the cleaning process based on an operation by the operation panel when the control program is being executed . The washing machine according to claim 1,
The cleaning program includes the cleaning step twice or more, and each cleaning process of the cleaning step including two or more times is selectively skipped by the skip means. In the washing machine according to claim 1 or 2 ,
Calculating means for calculating a remaining time until the cleaning program is completed;
A display unit for displaying the remaining time calculated by the calculating means,
A cleaning machine, wherein when the skip means is executed, the calculation means is executed to display the remaining time on the display unit.

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