JPH114794A - Dish washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a small-sized pump, to lower noise, to shorten operation time, to improve energy efficiency and to wash stains which could not be washed before by washing dishes by moving a washing nozzle while jetting washing water and making the washing nozzle stoppable at a prescribed position. SOLUTION: A stopper mechanism fixes the washing nozzle 7 at the prescribed position by performing locking in the direction of obstructing the rotation of the washing nozzle 7. The stopper mechanism is provided with a vertically moved rod 12a, a solenoid 12b for being energized and elevating the rod 12a in the optional time band of a washing process and a spring 12c for lowering the rod 12a when the energizing of the solenoid 12b is stopped. A projection part 7a to be locked to the elevated rod 12a is provided on the lower part of the washing nozzle 7, the washing nozzle 7 is rotated until reaching the position of being abutted to the rod 12a and rotation is stopped when it is abutted to the rod 12a. At the optional time during the washing process, the solenoid 12b is energized, the rod 12a is elevated and the rotation of the washing nozzle 7 is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing dishes.

[0002]

2. Description of the Related Art Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 1, a dishwasher main body 1 has a washing tank 2 provided therein, and water or hot water is supplied into the washing tank 2 by a water supply valve 3. At the time of driving, the cleaning water is attached to a pump chamber communicating with the other side of the drain hole 4 and circulates inside the cleaning tank 2 by a cleaning pump 6 driven by a motor 5. That is,
In this circulation, the washing water is sucked into the washing pump 6 from the drain hole 4, supplied from the washing pump 6 to the washing nozzle 7 provided at the inner bottom of the washing tank 2, sprayed from the washing nozzle 7, and washed. And return to the drain hole 4 again.

A heater 8 for heating cleaning water is provided between the cleaning nozzle 7 and the bottom of the cleaning tank 2. A tableware basket 9 is arranged above the cleaning nozzle 7 so that the tableware can be arranged neatly and the washing water is effectively sprayed on the tableware. The washing nozzle 7 is arranged at substantially the center of the washing tank 2, and rotates substantially on a horizontal plane about the central rotation axis to wash the entire dish placed in the dish basket 9 uniformly. The positions and injection angles of the injection holes are devised and arranged.

[0005] A door 10 that can be opened and closed is attached to the front of the washing tank 2. The tableware basket 9 is provided with a plurality of moving rollers, and the upper part of the open door 10 can be pulled out to the front outside of the dishwasher body 1. The drainage pump 11 discharges washing water out of the machine.

In a conventional dishwasher, the washing nozzle 7 rotates with respect to the dish basket 9 fixed in this manner,
Most of the configuration is to wash dishes, but conversely, there is also a dishwasher in which the washing nozzle 7 is fixed and the dish basket 9 is rotated to perform washing. In any case, from the viewpoint of energy efficiency, not all dishes are washed with a constant jet of washing water, but the jet of washing water moves relative to the dishes. And efficient cleaning.

[0007]

In such a conventional configuration, the entire inside of the cleaning tank 2 is uniformly cleaned. There are various types of stains on tableware for cleaning, and of course, the energy required to clean them. For example, rice soil becomes glue-like, has a strong bond with tableware, and is included in the types of strong soil. Significantly more energy is required to clean this dirt.
Conversely, in a cup that only drinks drinking water, the dirt can be washed with a little washing water, so that the energy required to wash the rice is not required.

However, in the conventional configuration, as described above, the main purpose is to uniformly wash the entire area of the tableware basket 9. Therefore, originally, depending on the stains on the tableware, necessary and sufficient cleaning is required. Despite the different energy settings, in order to clean all of them, set the energy setting so that it can be cleaned assuming the most dirty tableware of general dirt that is usually cleaned in a dishwasher. I was

Therefore, it is necessary to set the jetting pressure of the washing water jetted from the washing nozzle 7 to be high, or to set a long time for the washing process. If the injection pressure is set high, the cleaning pump 6 needs to be large, and the collision force with the cleaning tank 2 is strong, which causes noise.
In addition, increasing the length of the washing step increases the overall operation time of the dishwasher, which is disadvantageous for the user with respect to time, and is naturally disadvantageous in terms of energy.

[0010] In the conventional dishwasher, the washing performance is set so that it can cover most of a normal meal. The dirt that can be covered is the general dirt described above. However, with respect to dirt such as cooking steamed dishes or gratin, the ingredients in the dishes are cooked together with the dishes, with a conventional dishwasher,
The fact is that the cleaning is not compatible. this is,
Because the connection between tableware and ingredients is very strong,
Extremely strong energy is required for this dirt, and taking measures during normal operation is a problem in terms of operation time and energy as in the case of the aforementioned disadvantages.

[0011] The present invention solves the above-mentioned conventional problems. By operating with optimum energy according to the contamination of dishes, a smaller washing pump can be used, low noise and shorter operation time can be achieved. It is an object of the present invention to improve energy efficiency and to be able to wash dirt that cannot be washed conventionally.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention sets dishes in a dish basket inside a washing tank for washing dishes, and moves a washing nozzle while spraying washing water. In this configuration, the tableware can be washed and the washing nozzle can be stopped at a predetermined position.

[0013] Thus, by operating with the optimum energy according to the contamination of the tableware, it is possible to use a smaller washing pump, reduce the noise, shorten the operation time, and improve the energy efficiency. Cleaning can be performed in response to dirt that could not be cleaned.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, a washing tank for washing dishes, a dish basket for setting dishes inside the washing tank, and moving while spraying washing water. A washing nozzle for washing the tableware, wherein the washing nozzle can be stopped at a predetermined position, and a smaller washing pump is operated by operating with optimum energy according to the stain on the tableware. By using the method, the operation time can be reduced with low noise, the energy efficiency can be improved, and cleaning can be performed in response to dirt that could not be cleaned conventionally.

According to a second aspect of the present invention, in the first aspect of the present invention, the cleaning nozzle can be automatically stopped at any time during the cleaning process. In such dirt, it is easy to fall off when the dirt is swollen, so first stop the cleaning nozzle,
The washing energy is concentrated and the washing water penetrates deep into the deposits.Then, the washing nozzle is rotated and washed with other dishes until it swells.At the end of the washing process, the washing nozzle is again used. By stopping the rotation of the filter and intensively applying energy to the swelling and easy-to-fall dirt, cleaning can be performed efficiently. In addition, due to the intensive operation method for a long time in the cleaning process, it is possible to clean even dirt that could not be cleaned conventionally.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a specific dish can be intensively washed by the stopped washing nozzle.
By intensively applying cleaning water to a specific tableware, cleaning can be performed efficiently, and highly contaminated items can be cleaned in a short time.

The invention described in claim 4 is the above-mentioned claim 1-
In the invention described in 3, the cleaning nozzle is provided with a rotating surface that injects cleaning water in a direction substantially orthogonal to the rotation center axis or in the rotation axis direction, and in a direction substantially orthogonal to the rotation center axis. Even with a washing nozzle provided with a rotating surface for spraying washing water, or even a washing nozzle provided with a rotating surface for spraying washing water in the direction of the rotating axis, it can be easily stopped, and can be used for tableware. By intensively applying washing water,
It can be washed efficiently.

The invention described in claim 5 is the above-mentioned claim 1
4. The invention according to 4, wherein the cleaning nozzle is provided with a stopper mechanism for locking the cleaning nozzle in a direction of preventing the rotation thereof, and the cleaning nozzle is stopped by the stopper mechanism. It can be stopped and stopped, and washing can be efficiently performed by intensively applying washing water to the dishes.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the stopper mechanism is configured to lock the cleaning nozzle by manual operation, and the cleaning nozzle can be freely operated by a user. Can be stopped and washed against strong dirt.

[0020] The invention described in claim 7 is the above-mentioned claim 1-
6. The invention according to 6, wherein a plurality of washing nozzles and a plurality of tableware baskets are provided, and at least one washing nozzle can be stopped.
The cleaning can be performed for two types of dirt, strong dirt and general dirt.

[0021] The invention according to claim 8 is characterized in that a washing tank for washing dishes, and a tableware in which dishes are set and moved inside the washing tank, are arranged at a fixed position and the washing water is sprayed. A washing nozzle for washing the dishes, wherein the dish basket can be stopped at a predetermined position, the washing nozzle is arranged at a fixed position, and the dish basket with the set dishes is moved to thereby remove the dishes. The dishwasher in the basket can be washed evenly, and the dishwasher can be stopped at a predetermined position. By using the method, the operation time can be reduced with low noise, the energy efficiency can be improved, and cleaning can be performed in response to dirt that could not be cleaned conventionally.

According to a ninth aspect of the present invention, in accordance with the eighth aspect of the present invention, there are provided a position detecting means for detecting a relative position between the washing nozzle and the dish basket, and a control means for moving and stopping the dish basket. The tableware basket is stopped by the signal of the position detecting means, the relative position between the washing water injection hole and the tableware can be reliably set, and the washing water is supplied to the specific tableware by the washing nozzle. Can be applied intensively, cleaning can be performed efficiently, and highly dirty ones can be cleaned in a short time.

The invention according to claim 10 is the invention according to claim 8.
In the invention described in Item 9 or 9, the dish basket can be automatically stopped at an arbitrary time during the washing process, and the dish basket is efficiently washed by intensively applying energy to strong dirt. In addition, due to the intensive operation method for a long time in the cleaning process, it is possible to clean even dirt that could not be conventionally cleaned.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIGS. 1 and 2, the stopper mechanism 12 is locked in a direction for preventing the rotation of the cleaning nozzle 7, so that the cleaning nozzle 7 can be fixed at a predetermined position. Things. As shown in FIG. 3, the stopper mechanism 12 includes a rod 12a that moves up and down, a solenoid 12b that raises the rod 12a by energizing at any time during the cleaning process, and a rod 12a that stops energizing the solenoid 12b. And a spring 12c for lowering the lower part.

Further, the stopper mechanism 12 is fixed to the bottom of the cleaning tank 2 and a seal member 13 for preventing water leakage from the cleaning tank 2 is disposed. Also, in order to prevent water leakage from around the rod 12a, an O-ring shaped seal member 14 is provided to provide a waterproof structure against the vertical movement of the rod 12a. Further, a projection 7a is provided below the cleaning nozzle 7 so as to be engaged with the raised rod 12a. The cleaning nozzle 7 is rotated until the rotating cleaning nozzle 7 comes into contact with the rod 12a by spraying the cleaning water. The contact stops its rotation.

Here, it goes without saying that the washing pump 6 is always operating and the washing water is jetted from the rotating surface 7b of the washing nozzle 7, so that the specific dishware of the dish basket 9 set on the portion where the washing water is applied. Can be intensively washed.
In addition, since the cleaning nozzle 7 is operated by the force of rotating itself using the injection reaction force, the stopper mechanism 12 is a mechanism capable of urging against the rotational force. Not even.

In addition, above the stopped washing nozzle 7,
A set member is disposed on a part of the tableware basket 9 so that the tableware can be disposed on a portion corresponding to the washing water to be sprayed. Naturally, the tableware disposed in this portion is a tableware of a highly soiled type such as a bowl to which rice is attached.

At any time during the cleaning process,
When the solenoid 12b is energized, the rod 12a is raised to stop the rotation of the cleaning nozzle 7 as shown in FIG. In particular, in the case of dirt such as rice, it is easier to drop after swelling against the adhesion, so first, the cleaning nozzle 7 is stopped at an initial stage, and the cleaning energy is intensively applied to the bottom of the adhesion. Infiltrate washing water. Next,
As shown in FIG. 3B, the cleaning nozzle 7 is stopped by lowering the rod 12a, and the cleaning nozzle 7 is rotated. The time to swell is washed with other dishes. Then, at the end of the cleaning process, the rotation of the cleaning nozzle 7 is stopped again, and the swelling and dirt that is easily removed are efficiently cleaned by intensively applying energy.

According to this configuration, the rotation of the washing nozzle 7 is stopped at an arbitrary time during the washing process, and the washing water that is constantly being sprayed is concentrated on the tableware set above the stopped washing nozzle 7. It is possible to wash efficiently by appropriately applying. Therefore, by using this intensive energy, highly contaminated items can be washed in a short time, and can be operated with the optimum energy according to the contaminated tableware set in the washing tank 2. By using a small cleaning pump 6, the operation time can be reduced with low noise, and the energy efficiency can be improved.

Further, even in the operation of the cleaning process, the cleaning nozzle 7 is stopped and the cleaning nozzle 7 is stopped for a long time in the cleaning of the dish with extremely strong dirt, which is considered to be difficult in the conventional cleaning method. It becomes possible by washing in
For example, a strong stain such as an egg baked on tableware, such as steamed rice bowl, can be dealt with by taking a specially long course to stop the washing nozzle 7 for a long time.

As described above, the rotation of the washing nozzle 7 is stopped at an arbitrary time during the washing process, and the washing water is constantly jetted toward the tableware set with respect to the jetting direction of the washing nozzle 7 and specified. It is possible to wash efficiently by applying to the tableware, and to deal with dirt which could not be dealt with conventionally.

In this embodiment, as shown in FIG.
The cleaning nozzle 7 has a rotating surface in a direction substantially orthogonal to the rotation center axis, and the stopper mechanism 12 is disposed near the center of the cleaning tank 2 with respect to the cleaning nozzle 7 and the vertical movement of a rod 12a thereof. The stop and rotation of the cleaning nozzle 7 can be performed at any time. However, the position of the stopper mechanism 12 is not particularly limited even if it is not arranged at the position shown in this embodiment, and the stopper mechanism 12 having a force for urging the jet reaction force of the cleaning nozzle 7 may be arranged. . For example, the cleaning nozzle 7 can be stopped by the rod 12a that moves back and forth from the rear surface of the cleaning tank 2.

Further, in this embodiment, the solenoid 12b is used as a drive source of the stopper mechanism 12, but a drive device such as a geared motor may be used. The same effect can be obtained by using a structure in which the cleaning nozzle 7 is stopped by the attraction force using a magnet. Further, if the cleaning nozzle 7 is directly driven by a driving device (for example, a motor), the driving device can be simply controlled to stop the rotation of the cleaning nozzle 7 at an arbitrary position. The same effect can be obtained by using.

In this embodiment, the cleaning nozzle 7 is provided with a rotating surface 7b for spraying the cleaning water in a direction substantially perpendicular to the rotation center axis. However, as shown in FIG. A rotation surface 15a for injecting the cleaning water is provided, and a stopper mechanism 12 is provided on the rear surface of the cleaning tank 2 in the same manner for the rod-shaped cleaning nozzle 15 rotating around the rotation center axis.
The same effect can be obtained by providing a configuration for stopping the cleaning nozzle 15.

(Embodiment 2) As shown in FIG. 5, a stopper mechanism 16 stops the rotation of the cleaning nozzle 7.
It is arranged in the tableware basket 9 and is configured to be manually movable according to the user's intention. When the cleaning nozzle 7 is stopped and strong dirt is to be cleaned, the stopper mechanism 16 is rotated in the direction of arrow A, and the locking portion 16a of the stopper mechanism 16 is arranged on the trajectory of the cleaning nozzle 7. It is configured to be. Other configurations are the same as those in the first embodiment.

With this configuration, the rotation of the cleaning nozzle 7 is prevented, and the cleaning water is continuously sprayed only in the direction of the injection hole of the cleaning nozzle 7. By providing a process for performing the cleaning for a certain period of time necessary for cleaning the dirt, the cleaning water can be continuously jetted to a specific tableware arranged in the jetting direction of the cleaning nozzle 7, and a strong dirt can be obtained. Can be washed away. Moreover, in this configuration, it is possible to freely clean only the strong dirt by the user's intention.

In this embodiment, the stopper mechanism 16 is arranged on the tableware basket 9, but a similar stopper mechanism 16 may be arranged on the bottom of the washing tank 2. Further, in this configuration, the user operates the stopper mechanism 16 by actually rotating the stopper mechanism 16, but the drive unit as in the first embodiment is arranged, and the stopper mechanism 16 is operated by operating the switch. Even so, the same effect can be obtained.

(Embodiment 3) As shown in FIG.
A first washing nozzle 17 and a second washing nozzle 18 are disposed inside the first washing nozzle 17 and the second washing nozzle 18, respectively, above the first washing nozzle 17 and the second washing nozzle 18. 20 are arranged. In the first cleaning nozzle 17,
The first cleaning nozzle 17 can be stopped by arranging the stopper mechanism 12 having the same configuration as that of the first embodiment and locking the stopper mechanism 12 to the projection 17 a provided below the cleaning nozzle 17. Other configurations are the same as those in the first embodiment.

As a result, a specific dish set in the first dish basket 19 can be intensively washed by the first washing nozzle 17, and can be washed in response to strong dirt. Further, at the same time, the tableware of general dirt is set in the second tableware basket 20 and washed with the rotating second washing nozzle 18, so that even when the normal operation course is operated, strong dirt is generated. Cleaning can be performed in response to two types of general dirt.

In this case, the first cleaning nozzle 17 may be stopped automatically or manually by a user's intention.

(Embodiment 4) As shown in FIG. 7, the washing nozzle 21 is fixedly arranged at a part of a corner of the washing tank 2 and is rotatable at the center of the bottom of the washing tank 2.
2 is arranged. The tableware basket 22 is configured to be arbitrarily rotated and stopped by a tableware basket drive motor 23 provided on the back side of the bottom surface of the washing tank 2.

The position detecting means 24 comprises a permanent magnet 24a disposed on a part of the tableware basket 22, and a reed switch 24b disposed on the back side of the washing tank 2 and opening and closing the contacts by the magnetic force of the permanent magnet 24a. When a part of the basket 22 on which a specific dish is set comes to a position facing the washing nozzle 21, the position is detected so that the position can be detected. When the position detecting means 24 performs the detection, a detection signal is transmitted to the control means 25, and the tableware driving motor 23 is stopped in an arbitrary time zone of the washing process.

With this configuration, the fixed cleaning nozzle 2
In contrast, the tableware basket 22 that rotates can be stopped at a predetermined position and at an arbitrary time zone. Therefore, the cleaning property of the tableware with respect to the injection of the cleaning water is relatively the same as that of the first embodiment, and the same effect can be obtained.

Here, the position detecting means 24 is provided for the tableware basket 2.
2 and a micro switch.

[0046]

As described above, according to the first aspect of the present invention, a washing tank for washing dishes, a dish basket for setting dishes inside the washing tank, and washing water are provided. A washing nozzle that moves while jetting to wash the tableware, and the washing nozzle is configured to be able to stop at a predetermined position. By using a cleaning pump, the operation time can be reduced with low noise, the energy efficiency can be improved, and cleaning can be performed in response to dirt that could not be cleaned conventionally.

According to the second aspect of the present invention, the cleaning nozzle can be automatically stopped at an arbitrary time during the cleaning process. First, stop the washing nozzle first, apply the cleaning energy intensively, allow the washing water to penetrate deep into the deposits, and then rotate the washing nozzle until it swells. After washing with other dishes, at the end of the washing process, the rotation of the washing nozzle is stopped again, and efficient cleaning can be achieved by intensively applying energy to swelling and easily falling dirt. In addition, due to the intensive operation method for a long time in the cleaning process, it is possible to clean even dirt that could not be cleaned conventionally.

According to the third aspect of the present invention, a specific dish can be intensively washed by the stopped washing nozzle, so that the washing water is intensively applied to the specific dish. As a result, cleaning can be performed efficiently, and highly dirty ones can be cleaned in a short time.

According to the fourth aspect of the present invention, since the cleaning nozzle is provided with a rotating surface for spraying cleaning water in a direction substantially perpendicular to the rotation center axis or in the rotation axis direction, the cleaning nozzle is provided on the rotation center axis. Even a cleaning nozzle provided with a rotating surface for spraying cleaning water in a direction substantially orthogonal to the cleaning nozzle, or a cleaning nozzle provided with a rotating surface for spraying cleaning water in the direction of the rotation axis easily stops. The washing water can be efficiently washed by intensively applying washing water to the dishes.

According to the fifth aspect of the present invention, the cleaning nozzle is provided with a stopper mechanism for stopping the cleaning nozzle from rotating, and the cleaning nozzle is stopped by the stopper mechanism. The mechanism prevents the rotation of the washing nozzle and stops the washing, and the washing can be efficiently washed by intensively applying washing water to the dishes.

According to the sixth aspect of the present invention, since the stopper mechanism is configured to lock the cleaning nozzle by manual operation, the cleaning nozzle can be freely stopped by the user's will, and the power can be increased. It can be washed against unclean stains.

According to the seventh aspect of the present invention, at least one washing nozzle and a plurality of tableware baskets are provided.
Since one cleaning nozzle can be stopped, it is possible to perform cleaning in accordance with two types of dirt, strong dirt and general dirt, by operating the normal operation course.

Further, according to the invention of claim 8, a washing tank for washing dishes and a tableware for setting and moving dishes inside the washing tank are arranged at a fixed position to supply washing water. A washing nozzle for spraying to wash the tableware,
Since the dish basket can be stopped at a predetermined position, the washing nozzle is arranged at a fixed position, and by moving the dish basket with the set dish, the dishes in the dish basket can be washed evenly. The tableware basket can be stopped at a predetermined position, and by operating with the optimum energy according to the contamination of the tableware, a smaller washing pump can be used to reduce the operating time with lower noise. It is possible to shorten the length and improve the energy efficiency, and it is possible to wash in response to dirt that could not be washed conventionally.

According to the ninth aspect of the present invention, there is provided a position detecting means for detecting a relative position between the washing nozzle and the dish basket, and a control means for moving and stopping the dish basket. Since the tableware basket is configured to be stopped by the signal of, the relative position between the washing water injection hole and the tableware can be reliably set, and the cleaning nozzle can be applied to the specific tableware by the cleaning nozzle. As a result, it is possible to efficiently clean, and it is possible to clean highly dirty items in a short time.

According to the tenth aspect of the present invention,
The tableware basket can be automatically stopped at any time during the washing process, so by applying energy intensively to strong dirt, it can be washed efficiently, and also in the washing process. The intensive operation method for a long time enables cleaning of dirt that could not be cleaned conventionally.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of the dishwasher;

Fig. 3 (a) Cross-sectional view of the main part of the dishwasher when the washing nozzle is stopped (b) Main part cross-sectional view of the dishwasher when the cleaning nozzle is rotated

FIG. 4 is a partially cutaway perspective view of another example of the dishwasher;

FIG. 5 is a partially cutaway perspective view of a main part of a dishwasher according to a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional view of a dishwasher according to a third embodiment of the present invention.

FIG. 7 is a longitudinal sectional view of a dishwasher according to a fourth embodiment of the present invention.

FIG. 8 is a longitudinal sectional view of a conventional dishwasher.

[Explanation of symbols]

 2 Washing tank 7 Washing nozzle 9 Tableware basket

Claims (10)

[Claims] 1. A washing tank for washing dishes, a dish basket for setting dishes in the washing tank, and a washing nozzle for moving and jetting washing water to wash the dishes. A dishwasher with a nozzle that can be stopped at a predetermined position. 2. The dishwasher according to claim 1, wherein the washing nozzle can be automatically stopped at an arbitrary time during the washing process. 3. The dishwasher according to claim 1, wherein a specific dish can be washed intensively by the stopped washing nozzle. 4. The dishwasher according to claim 1, wherein the washing nozzle is provided with a rotating surface for spraying washing water in a direction substantially orthogonal to a rotation center axis or in a rotating axis direction. 5. The cleaning nozzle according to claim 1, further comprising a stopper mechanism for locking the cleaning nozzle in a direction for preventing its rotation, wherein the stopper mechanism stops the cleaning nozzle.
5. The dishwasher according to any one of 4 above. 6. The dishwasher according to claim 5, wherein the stopper mechanism is configured to manually lock the washing nozzle. 7. The dishwasher according to claim 1, comprising a plurality of washing nozzles and a plurality of dish baskets, wherein at least one washing nozzle can be stopped. 8. A washing tank for washing dishes, a dish basket for setting and moving dishes inside the washing tank, a washing nozzle arranged at a predetermined position and spraying washing water to wash the dishes. And a dishwasher configured to stop the dish basket at a predetermined position. 9. A system comprising: position detecting means for detecting a relative position between a washing nozzle and a tableware basket; and control means for moving and stopping the tableware basket, wherein the tableware basket is stopped by a signal from the position detection means. The dishwasher according to claim 8, wherein 10. The dishwasher according to claim 8, wherein the dish basket can be automatically stopped at any time during the washing process.