JP2000189371A - Tableware washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drain water intruded into a washing vessel to be removed, to wash an inside thereof with water to easily clean it, and to prevent a claim of water leakage. SOLUTION: This washer is provided with a washing vessel 2 having a lid body 1 freely opened and closed, a washing means 3 for washing tableware with hot water supplied inside the vessel 2, a drying means 4 for drying the tableware after a washing process, and a draining pump 5 for draining the hot water inside the vessel 2, and the washing process and a drying process are automatically carried out in accompany with draining by operation of the pump 5 when a start switch is turned on and the lid body 1 is closed. The pump 5 is operated irrespective of the opening or closing condition of the lid body 1 when the start switch is turned off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwashing apparatus capable of automatically washing, drying and storing tableware.

[0002]

2. Description of the Related Art Conventionally, there has been known a dishwashing apparatus capable of automatically washing, drying, and storing tableware. The dishwashing apparatus includes a washing tank having an openable and closable lid body, in which dishes are stored, washing means for washing the dish with hot and cold water supplied into the washing tank, and a washing means. A drying unit for drying the tableware after the washing step, and a drainage pump for draining hot water from the washing tank before the drying step by the drying unit is performed.

In this case, when the start switch is turned on and the lid is closed, the washing step and the drying step are automatically executed along with drainage by the operation of the drainage pump during the operation. Has become. Therefore, in this case, the stored tableware is washed and drained automatically in a safe state with the lid closed, and the tableware is efficiently dried.

[0004]

However, in the above-mentioned conventional technology, the drain switch is only operated automatically while the start switch is turned on and the washing and drying are being performed. When drying is not being performed, it is not possible to drain the water from the washing tank.

[0005] Therefore, it is difficult to drain and remove the water erroneously entered into the washing tank, and it is not possible to wash the inside of the washing tank with water and to clean the washing tank. There was a problem that if it accumulates and overflows, it also becomes a claim of water leakage. In particular, when the washing tank is opened upward and the washing tank is installed adjacent to the side of the sink of the sink and the counter of the sink and the opening have substantially the same height, water is supplied into the washing tank. However, there is a problem that it is difficult to remove the water by drainage, and it is difficult to wash and clean the vicinity of the upper opening of the washing tank and its surroundings with water.

SUMMARY OF THE INVENTION The present invention has been made in order to solve all the problems in the prior art described above, and an object of the present invention is to remove the water that has entered the cleaning tank when cleaning and drying are not being performed. Accordingly, it is an object of the present invention to provide a dishwashing apparatus which can wash the inside of the washing tank with water and can easily clean the washing tank, and can prevent a water leak from overflowing from the washing tank. .

[0007]

According to a first aspect of the present invention, there is provided a dishwashing apparatus comprising: a washing tank having an openable and closable lid body for accommodating tableware therein; Washing means for washing the tableware with hot and cold water, drying means for drying the dishes after the washing step by the washing means, and drainage for draining hot water in the washing tank before the drying step by the drying means. And a pump, wherein when the start switch is turned on and the lid is in the closed state, the washing step and the drying step are automatically performed along with drainage by the operation of the drainage pump in the middle. In the made dishwasher, when the start switch is in the OFF state,
A drain switch for operating the drain pump to drain regardless of the open / closed state of the lid, and a drain display unit for displaying that the drain pump is in the operating state are provided.

Therefore, in this case, if the start switch is turned ON and the lid is closed, the washing step and the drying step are automatically executed during the course of the drainage by the operation of the drainage pump. Therefore, in a safe state in which the lid is closed, the stored tableware is washed, drained automatically, and the tableware is efficiently dried.

In addition, when cleaning and drying are not performed with the start switch turned off, the drainage pump can be operated by the drainage switch regardless of the open / closed state of the lid. Therefore, the water that has entered the washing tank can be drained and removed, and the inside of the washing tank can be easily washed by washing with water, thereby preventing a water leak from overflowing from the washing tank. it can. Further, at this time, since the drainage display section indicates that the drainage pump is in the operating state, it is possible to prevent the start switch from being accidentally turned ON during drainage.

[0010] The dishwashing apparatus according to claim 2 of the present invention comprises:
A washing tank having a lid that can be opened and closed and in which dishes are stored, washing means for washing the dishes with hot and cold water supplied into the washing tank, and a washing step performed by the washing means. A normal water level sensor for detecting the level of the hot water, drying means for drying the tableware after the washing step, and a drainage pump for draining hot water in the washing tank before the drying step by the drying means. , And the start switch is O
In a dishwasher in which the washing step and the drying step are automatically executed along with drainage by the operation of a drainage pump during the operation when the lid is closed by operating the start switch, When is off, regardless of the open / closed state of the lid, the drain pump is automatically activated by the detection of the normal water level sensor to drain water.

Therefore, in this case, when the start switch is turned ON and the lid is closed, a required amount of hot water is normally detected by the water level sensor and supplied to the cleaning tank, and the cleaning process is performed. And the drying process is automatically executed along with drainage by the operation of the drainage pump in the middle, so that the stored tableware is washed in a safe state with the lid closed, and hot water supply and Drainage is also performed, and the tableware is efficiently dried.

In addition, when washing and drying are not performed when the start switch is in the OFF state, the drainage pump is automatically operated and drained by the detection of the normal water level sensor regardless of the open / closed state of the lid. Therefore, when a large amount of water enters the cleaning tank, the water is automatically drained and removed, and the inside of the cleaning tank can be easily washed by washing with water. Can be prevented.

According to a third aspect of the present invention, there is provided a dishwashing apparatus comprising:
A washing tank having a lid that can be opened and closed and in which dishes are stored, washing means for washing the dishes with hot and cold water supplied into the washing tank, and a washing step performed by the washing means. A normal water level sensor for detecting the level of the hot water, drying means for drying the tableware after the washing step, and a drainage pump for draining hot water in the washing tank before the drying step by the drying means. , And the start switch is O
In a dishwasher in which the washing step and the drying step are automatically executed along with drainage by the operation of a drainage pump during the operation when the lid is closed by operating the start switch, When the switch is in the OFF state, a drain switch for operating the drain pump to drain the water is provided regardless of the open / closed state of the lid. Instead, the drain pump is automatically operated and drained by the detection of the normal water level sensor, and a drain display unit is provided to indicate that the drain pump is in the operating state.

Therefore, in this case, when the start switch is turned ON and the lid is closed, the required amount of hot water is normally detected by the water level sensor and supplied into the cleaning tank, and the cleaning process is performed. And the drying process is automatically executed along with drainage by the operation of the drainage pump in the middle, so that the stored tableware is washed in a safe state with the lid closed, and hot water supply and Drainage is also performed, and the tableware is efficiently dried.

In addition, when washing and drying are not performed when the start switch is in the OFF state, the drainage pump can be operated by the drainage switch regardless of the open / closed state of the lid, and the detection of the normal water level sensor is performed. The drainage pump is automatically operated to drain water. Therefore, the water that has entered the cleaning tank can be drained and removed, and when the amount of water that has entered the cleaning tank becomes large, the water is automatically drained and removed. Cleaning can be performed, and a complaint of water leakage overflowing from the washing tank can be reliably prevented. Further, at this time, the drainage display section displays that the drainage pump is in the operating state.
It is also possible to prevent the start switch from being accidentally turned ON during drainage.

According to a fourth aspect of the present invention, there is provided a dishwashing apparatus comprising:
In the dishwashing apparatus according to any one of claims 1 to 3, the washing tank is opened upward, and the lid that opens and closes the opening is substantially equal to the height of the counter of the sink in its closed state, The washing tank is provided adjacent to a side of a sink provided in the counter.

Therefore, in this case, the upper part of the lid in the closed state can be used as a cooking work space substantially equal to the height of the counter of the sink and adjacent to the side of the sink. The water that has entered the washing tank can be easily drained and removed, and the upper part of the washing tank and its surroundings, which are easily contaminated, can be washed with water to be easily cleaned, which is convenient and particularly effective. .

[0018]

1 to 4 show the first embodiment of the present invention.
4 shows an embodiment corresponding to FIG. 4. The dishwashing apparatus of this embodiment has a lid 1 that can be opened and closed, and a dishwasher 2 in which dishes are stored. Washing means 3 for washing the tableware with hot and cold water, drying means 4 for drying the tableware after the washing step by the washing means 3, and the washing tank 2 before the drying step by the drying means 4. A drain pump 5 for draining hot and cold water. In this case, when the start switch 6 is turned ON and the lid 1 is in the closed state, the washing step and the drying step are automatically executed along with drainage by the operation of the drainage pump 5 in the middle. ing.

In the dishwashing apparatus of this embodiment, when the start switch 6 is in the OFF state, regardless of the open / closed state of the lid 1, the drainage switch 7 for operating the drainage pump 5 to drain water is provided. And a drainage display section 8 for displaying that the drainage pump 5 is in an operating state.
Further, the washing tank 2 is opened upward, and the lid 1 that opens and closes the opening is flush with the side of a sink 12 provided in the counter 11 so that the height of the counter 11 of the sink 10 is substantially equal to the height of the counter 11 in the closed state. The cleaning tank 2 is installed adjacently.

As shown in FIG. 2, the sink 10 is a cabinet having a lower portion as a storage space, and a counter 11 is fixedly mounted on a portion of the sink 10 which will be the upper surface. On one side of the counter 11, a sink 12 is provided.
A shower curan 13 that is detachably detachable and can be used is provided at the back of the shower curn 13. Shower curran 13
Is a device that can be used by switching between a DC discharge state and a shower ejection state, and used hot water is drained and removed from a drain port 14 of a sink 12 to a drain pipe 15,
The drain pipe 15 is housed and piped in a space below the sink 10.

The washing tank 2 is provided on the opposite side of the counter 11 from the sink 12, and the opening of the sink 12 and the opening of the washing tank 2 are arranged close to each other at substantially the same height. The washing tank 2 is accommodated and installed in the lower space of the sink 10 so as not to be obstructed, and a foldable lid 1 for opening and closing the washing tank 2 is attached to an upper opening thereof. Hence the sink
The dirt and residual vegetables stuck to the tableware are washed away in advance using the shower curan 13 in step 12, and the tableware can be smoothly stored in the cleaning tank 2 located adjacent to the side. . Moreover, when the lid 1 is in the closed state,
The lid 1 located adjacent to the side of the sink 12 can be effectively used as a cooking space or a temporary storage space.

As shown in FIG. 1, in the middle of the cleaning tank 2,
A storage basket 16 for holding the stored tableware in an optimal state is provided. A hot water supply solenoid valve 17 for supplying hot and cold water to the inside of the washing tank 2 is provided at an upper portion of a side wall of the washing tank 2.
The hot water supply solenoid valve 17 is connected to the hot water supply pipe 18 and
A strainer 19 is interposed in the middle of 18. Cleaning tank 2
When hot water is supplied up to a predetermined water level, the hot water supply electromagnetic valve 17 is closed by the detection of the normal water level sensor 9 and the hot water is jetted from the spray arm 3a which rotates by the operation of the cleaning pump 3b. The tableware held in the storage basket 16 is effectively washed.

At this time, a spray arm 3 is provided from the cleaning pump 3b through a garbage filter 20 provided at the bottom of the cleaning tank 2.
Hot water is circulated through the washing tank 2 to 3a. In this case, the spray arm 3a and the washing pump 3b serve as the washing means 3. When the washing process by the washing means 3 is completed, the drain pump 5 is operated, and the hot water in the washing tank 2 is removed from the residual filter 20 by the trap 21. Through the drainage hose 22 to join the drainage pipe 15 from the drainage hose 22 to be drained and removed.
Further, when the operation of hot water supply or drainage is not performed normally and the hot water in the washing tank 2 becomes higher than a predetermined water level, the abnormal water level sensor 23 detects this, and the abnormal state may be detected. Be informed.

A sheath heater 4a is provided below the washing tank 2, and the circulated hot water is heated and kept warm by the sheath heater 4a. After the hot and cold water in the washing tank 2 is drained and removed, a drying step is performed. In the drying step, the air in the washing tank 2 is heated and kept warm by the sheath heater 4a. At this time, outside air is introduced into the cleaning tank 2 by the intake fan 4b, heated by the sheath heater 4a, and then discharged from the exhaust duct 24 provided at the upper end of the cleaning tank 2. In this case, warm air is circulated in the washing tank 2, and the dishes held in the storage basket 16 are effectively dried. The drying means 4 in the drying step includes a sheath heater 4a and an intake fan 4b, and a heater may be provided in the intake fan 4b so that warm air is blown out from the heater.

As shown in FIG. 2, a sink is provided in front of the washing tank 2.
An operation panel 25 on which various switches are arranged is provided below the counter 11 of the ten. Operation panel 25
As shown in FIG. 3, in addition to the start switch 6, the drain switch 7, and the drain display section 8, a power on switch 26,
Power off switch 27, power display 28, washing course setting switch 29, washing course display 30, drying time setting switch 3
1. It has a drying time display section 32 and the like.

In this case, in the state of the power plug (ON), first, the power ON switch 26 is pressed to perform an ON operation. At that time, the power supply display unit 28 lights up. Next, a washing course setting switch 29 is pressed to select and set a washing course. At this time, every time the washing course setting switch 29 is pressed, the standard, careful, and pre-washing of the washing course display section 30 are sequentially lit, and the lit course can be selectively set. In this case, it is also possible to select a pattern in which all of the standard, meticulous, and pre-washing are turned off. In this case, a course in which only the drying process is performed without performing the cleaning process is selected.

As the next operation, the drying time setting switch 31
Is pressed to select and set the drying time.In this case as well, every time the drying time setting switch 31 is pressed, the drying time display section 32 is lit alternately for 20 minutes and 60 minutes, and the lit time is displayed. Can be selected and set. In addition, a pattern in which both are turned off can be selected, so that the drying process is not performed. If the previous drying time is not changed, the operation of pressing the drying time setting switch 31 is unnecessary. Finally, by pressing the start switch 6, the washing step and the drying step are automatically executed as described above. In this case, a sensor for detecting the closed state of the lid 1 is provided, and when the sensor is not detecting, the washing step and the drying step are not executed.

In the cleaning process, in addition to the main cleaning using a detergent, a plurality of rinsing operations are performed thereafter, during which the drainage pump 5 is automatically operated and a draining operation is appropriately performed. At the same time, the draining operation is also performed after the washing step and before the drying step. Also, when the drain switch 7 is pressed, the drain pump 5 operates to execute the drain operation. In this case, if the power plug is on, the drain operation is performed even when the power indicator 28 is not lit, regardless of whether the power on switch 26 is ON or OFF. The display unit 8 lights up.

That is, as shown in FIG. 4, when the drain switch 7 is turned on either before or after the power switch (power switch 26) is turned on, the drain pump 5 is operated and the drain display section 8 is displayed. When the drain switch 7 is turned off, the drain pump 5 is stopped and the drain display section 8 is turned off. In this case, the above operation is performed regardless of the open / closed state of the lid 1.

In this case, when the drain switch 7 is pressed once (for at least 0.2 seconds), the drain switch 5 is turned on, the drain pump 5 is continuously operated, and the drain switch 7 is pressed again. Then, the drain pump 5 is stopped, and the drain pump 5 is stopped. That is, when the drain switch 7 is pressed once (for 0.2 second to less than 1 second), O
In the N state, the drainage pump 5 is continuously operated for only 2 minutes and automatically turned off to stop. In this case, the drainage switch 7 is turned on once (for one second or more). Press the button to turn it on, push the drainage pump 5 continuously for 15 minutes to automatically turn it off and stop it.
It is possible to stop in the FF state.

Therefore, in the dishwashing apparatus according to the embodiment, the start switch 6 is turned ON and the lid 1 is turned on.
Is in a closed state, the washing process and the drying process are automatically executed during the course of the drainage by the operation of the drainage pump 5, so that the tableware stored in a safe state with the lid 1 closed. Is washed and drained automatically, and the tableware is efficiently dried.

In addition, even when washing and drying are not performed with the start switch 6 in the OFF state, the drainage switch 7 can be easily operated by pushing the drainage switch 7 regardless of the open / closed state of the lid 1. Can be done. Therefore, the water that has entered the cleaning tank 2 can be drained and removed at any time, and the inside of the cleaning tank 2 can be easily washed by washing with water. Can be prevented. Further, at this time, since the drainage display section 8 illuminates and indicates that the drainage pump 5 is operating, it is possible to prevent the start switch 6 from being accidentally turned ON during drainage.

Further, in the dishwashing apparatus of this embodiment, the cooking work space or the temporary work space adjacent to the side of the sink 12 which is substantially equal to the height of the counter 11 of the sink 10 above the lid 1 in the closed state. It can be used as a storage space. Moreover, at that time, the water that has entered the cleaning tank 2 can be easily drained and removed, and the upper part of the cleaning tank 2 that is easily contaminated and its surroundings can be easily washed with water. It is easy to use and particularly effective. Further, in this case, the shower curn 13 detachably provided behind the sink 12 is taken out to the side, and the shower curan 13 is taken out.
The upper portion of the cleaning tank 2 and its surroundings can be easily washed with water by using the 13.

FIG. 5 shows another embodiment corresponding to the second and fourth aspects of the present invention. In the dishwashing apparatus of this embodiment, the water level required in the washing step by the washing means 3 is determined. A normal water level sensor 9 is provided, and when the start switch 6 is in the OFF state, the drain pump 5 is automatically operated by the detection of the normal water level sensor 9 to drain water regardless of the open / closed state of the lid 1. It has become so.
In this case, the drainage pump 5 is automatically activated by the detection of the normal water level sensor 9 before and after the power switch (power-on switch 26) is turned on, and the power supply display unit
When the power switch is turned off (the power-off switch 27 is pressed) after that, the drain pump 5 is stopped and the power display unit 28 is turned off.

Therefore, in the dishwashing apparatus of this embodiment, the required amount of hot water is normally detected by the water level sensor 9 and supplied into the washing tank 2 as in the above embodiment. But start switch 6 is OFF
When washing and drying are not performed in this state, the drainage pump 5 is automatically operated and drained by the detection of the normal water level sensor 9 regardless of the open / closed state of the lid 1. Therefore, when a large amount of water has entered the cleaning tank 2, the water is automatically drained and removed, and the inside of the cleaning tank 2 can be easily washed by washing with water. Claims can be reliably prevented.

In this case, it is not necessary to set the abnormal mode for the abnormal water level sensor 23 in the above embodiment.
The normal water level sensor 9 can detect even a smaller flow rate, so that the cost can be reduced and the reliability can be improved. The rest of the configuration is the same as that of the embodiment shown in FIGS.
The functions and effects other than those related to the drainage display section 8 are provided in the same manner as in the above-described embodiment.

FIG. 6 shows still another embodiment corresponding to the second and fourth aspects of the present invention. In the dishwashing apparatus according to this embodiment, either before or after the power switch (power-on switch 26) is turned on. However, by the detection of the normal water level sensor 9, the drainage pump 5 is automatically stopped for a predetermined time (one minute) and then automatically stopped, and the OFF state is stopped until the normal water level sensor 9 detects again. To be continued. Except for this, the configuration is the same as that of the embodiment shown in FIG. 5, and the same operation and effect as in the above-described embodiment are exerted.

FIG. 7 shows still another embodiment corresponding to claims 3 and 4 of the present invention. The dishwashing apparatus of this embodiment is different from the embodiment shown in FIGS. It is provided with both of the configurations of the illustrated embodiment. That is, when the start switch 6 is in the OFF state, regardless of the open / closed state of the lid 1, the drain pump 5
Is provided, and when the start switch 6 is in the OFF state, the normal water level sensor 9 is provided regardless of the open / closed state of the lid 1.
The drainage pump 5 is automatically operated upon detection of the drainage to drain the water, and a drainage display section 8 for displaying that the drainage pump 5 is in an operating state is provided.

In this case, upon detection of the normal water level sensor 9, the drainage pump 5 is automatically operated and the drainage display section 8 is turned on. Then, when the drainage switch 7 is turned off, the drainage pump 5 is stopped. The drainage display 8 turns off. Therefore, the dishwashing apparatus of this embodiment is configured similarly to the embodiment shown in FIGS. 1 to 4 or the embodiment shown in FIG. Both are played in the same way.

[0040]

As described above, in the dishwashing apparatus according to the first aspect of the present invention, water that has entered the washing tank can be drained and removed by operating the drain switch, and the inside of the washing tank is washed with water. Can be easily cleaned and prevent water leakage complaints. In this case, the start switch is turned on accidentally during the drainage by the display of the drainage display section
Operation is also prevented.

In the dishwashing apparatus according to the second aspect of the present invention, when a large amount of water enters the washing tank, the water is automatically drained and removed by the detection of the normal water level sensor, and the washing tank is washed with water. It can be easily and easily cleaned, and the leakage leakage complaint can be reliably prevented.

In the dishwasher according to the third aspect of the present invention, the water that has entered the washing tank can be drained and removed by operating a drain switch, and the water that has entered the washing tank can be removed. When the amount becomes large, the drainage is also automatically removed by the detection of the normal water level sensor, the inside of the washing tank can be washed easily with water, and the claim of water leakage can be reliably prevented. The display of the drainage display unit prevents the start switch from being accidentally turned ON during drainage.

Further, in the dishwashing apparatus according to the fourth aspect of the present invention, the upper part of the lid in the closed state can be used as a cooking work space, and at this time, the water that has entered the washing tank. The wastewater can be easily removed,
In addition, the upper part and the periphery of the cleaning tank, which is easily contaminated, can be washed with water to easily clean it, which is convenient and particularly effective.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a dishwashing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic configuration perspective view showing the dishwashing apparatus according to the embodiment.

FIG. 3 is an exemplary front view showing an operation panel of the dishwashing apparatus according to the embodiment;

FIG. 4 is a flowchart showing an operation procedure of the dishwashing apparatus according to the embodiment.

FIG. 5 is a flowchart showing an operation procedure of the dishwashing apparatus according to another embodiment.

FIG. 6 is a flowchart showing an operation procedure of a dishwashing apparatus according to yet another embodiment.

FIG. 7 is a flowchart showing an operation procedure of a dishwashing apparatus according to still another embodiment.

[Explanation of symbols]

 Reference Signs List 1 lid 2 washing tank 3 washing means 4 drying means 5 drainage pump 6 start switch 7 drainage switch 8 drainage display section 9 normal water level sensor 10 sink 11 counter 12 sink

Claims (4)

[Claims] 1. A washing tank having an openable and closable lid body in which dishes are stored, washing means for washing the dishes with hot and cold water supplied into the washing tank, and washing by the washing means Drying means for drying the dishes after the process, and a drainage pump for draining hot water from the washing tank before the drying step by the drying means, wherein the start switch is O
In a dishwasher in which the washing step and the drying step are automatically executed along with drainage by the operation of a drainage pump during the operation when the lid is closed by operating the start switch, A drain switch for operating the drain pump to drain when the lid is in the OFF state, regardless of the open / closed state of the lid, and a drain display unit for displaying that the drain pump is in the active state. Becoming a dishwasher. 2. A washing tank having an openable and closable lid body in which dishes are stored, washing means for washing the dishes with hot and cold water supplied into the washing tank, and washing by the washing means A normal water level sensor for detecting the level of the hot water required in the process, drying means for drying the dishes after the washing step, and hot water in the washing tank before the drying step by the drying means. A drain pump for draining, when the start switch is turned ON and the lid is closed, the washing step and the drying step are automatically executed along with drainage by the operation of the drain pump in the middle. In the dishwasher configured as described above, when the start switch is in the OFF state, regardless of the open / closed state of the lid, the drainage pump is automatically operated by the detection of the normal water level sensor to drain water. Food Dishwasher. 3. A washing tank having an openable and closable lid and accommodating dishes therein, washing means for washing the dishes with hot and cold water supplied into the washing tank, and washing by the washing means A normal water level sensor for detecting the level of the hot water required in the process, drying means for drying the dishes after the washing step, and hot water in the washing tank before the drying step by the drying means. A drain pump for draining, when the start switch is turned ON and the lid is closed, the washing step and the drying step are automatically executed along with drainage by the operation of the drain pump in the middle. In the dishwasher configured as described above, when the start switch is in the OFF state, regardless of the open / closed state of the lid, a drainage switch for operating the drainage pump to drain the water is provided. When the switch is in the OFF state, regardless of the open / closed state of the lid, the drain pump is automatically operated and drained by the detection of the normal water level sensor, and the drain pump is operated. A dishwashing device provided with a drainage display section for displaying. 4. A washing tank is opened upward, and the washing tank is provided on a side of a sink provided on the counter so that a lid for opening and closing the opening is substantially equal to a height of a counter of the sink in the closed state. The dishwasher according to any one of claims 1 to 3, wherein the dishwasher is installed adjacent to the dishwasher.