JPH114797A - Dish washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently wash dishes corresponding to the kinds and strength of the stains of the dishes by varying the jetting amount of washing water by simple constitution linked with the pressurizing force of the washing water and changing the pressurizing force of the washing water without increasing the using amount of the washing water. SOLUTION: In the case of reducing the pressurizing force that a washing water pressurizing means 44 pressurizes the washing water 43 and jetting the washing water 43 from a jetting hole 48 by a low pressure by a control means 45 in washing and rinsing processes, the large amount of the washing water 43 is supplied from the washing water pressurizing means 44 through a second circulation route 55 to a second nozzle 47 by a flow rate control means 56. Thus, a lot of the washing water 43 of the low pressure is supplied to the dishes 50 or the like. On the other hand, in the case of enlarging the pressurizing force that the washing water pressurizing means 44 pressurized the washing water 43 and jetting the washing water 43 from the jetting hole 48 by a high pressure, the small amount of the washing water 43 is supplied from the flow rate control means 44 through the second circulation route 55 to the second nozzle 47.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A conventional dishwasher will be described below.

[0003] A conventional dishwasher is shown in FIG.
After storing the tableware basket 8 in which the tableware 7 and the like are stored in a predetermined place, the operation is started by adding a detergent.

[0004] When the operation is started, the water supply valve 2 is first operated to supply the washing water 3 to the washing tank 1. Then, the cleaning pump 4 pressurizes the cleaning water 3 and injects the cleaning water 3 from the injection holes 6 provided in the nozzle 5 together with the detergent. Thus, the cleaning step is performed. In this cleaning step, the heating element 9 provided in the cleaning tank 1 is energized to heat the cleaning water 3 to a predetermined cleaning temperature.

After a cleaning step for a predetermined time, the tableware 7
The washing water 3 containing the dirt washed off from the apparatus is discharged to the outside of the machine by the drainage pump 10. Subsequently, the washing water 3 is newly supplied, and the washing water 3 is jetted again from the jetting holes 6 provided in the nozzle 5. ), A step of rinsing the dishes 7 and the like contaminated with the above is executed. When the rinsing step is completed, the washing water 3 is discharged again to the outside of the machine. This rinsing step is repeated several times continuously. At this time, the residual vegetables are collected in the filter 11 provided in the washing tank 1. When the predetermined number of rinsing steps is completed, the operation of the dishwasher is completed.

[0006]

However, the conventional dishwasher has the following problems.

That is, in the washing and rinsing steps, the washing pump 4 rotates at a steady rotation, so that the washing pump 4 always pressurizes the washing water 3 with a constant pressure. Therefore, the washing water 3 sprayed from the spray hole 6 through the nozzle 5 is always supplied to the tableware 7 or the like with a constant pressure. The dirt cannot be washed out, or cannot be washed out unless the cleaning water 3 is supplied for a long time. Therefore, even after a predetermined cleaning time, satisfactory cleaning performance of the tableware 7 may not be obtained.

To solve this problem, if a cleaning pump 4 capable of changing the number of revolutions is used, the pressure applied by the cleaning pump 4 to pressurize the cleaning water 3 can be changed. Etc., the pressure of the washing water 3 to be supplied can be changed. However, in this case, when the number of revolutions of the cleaning pump 4 is increased to increase the pressure for pressurizing the cleaning water 3, the injection amount of the cleaning water 3 supplied from the cleaning pump 4 through the nozzles 5 and the injection holes 6 is increased. Will increase. Therefore, a larger amount of washing water 3 is sprayed than before.
In a state in which air is mixed into the cleaning pump 4 and the cleaning water 3 cannot be satisfactorily pressurized with the same supply amount of the cleaning water 3 as in the related art (this state is referred to as an air bleeding state). ). Therefore, when increasing the pressure for pressurizing the washing water 3, the water supply amount of the washing water 3 must be increased in the washing and rinsing steps, and as a result, the amount of water used in the dishwasher is increased. Therefore, there are problems that it takes a lot of time to heat the washing water to a predetermined temperature, and that the operation cost of the dishwasher increases.

SUMMARY OF THE INVENTION In view of the above problems, the present invention efficiently changes the pressure of washing water without increasing the amount of washing water used, and efficiently cleans dishes according to the type and intensity of stains on the dishes. It is another object of the present invention to wash dishes while changing the position where the washing water is injected without increasing the amount of washing water used.

[0010]

According to the dishwasher of the present invention, the amount of washing water used can be reduced by changing the injection amount of washing water with a simple structure in conjunction with the pressure of washing water. Without increasing the washing water pressure, it is possible to efficiently wash dishes according to the type and strength of stains on the dishes by changing the pressure of the washing water.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a washing tank, a tableware for storing dishes and the like, washing water pressurizing means for pressurizing washing water in the washing tank, Control means for controlling the washing water pressurizing means, a first nozzle arranged substantially horizontally and a second nozzle arranged substantially vertically, which sprays washing water into the washing tank; A circulation path connecting the pressurizing means and the first and second nozzles, and washing provided to the second nozzle or the circulation path and supplied from the washing water pressurizing means to the second nozzle And a flow rate control means for changing a flow rate of the water, wherein when the control means increases the pressure of the cleaning water pressurizing means, the flow rate of the cleaning water to the second nozzle is reduced.

According to this structure, when the control means pressurizes the cleaning water to increase the pressure for pressurizing the cleaning water and injects the cleaning water at a high pressure from the injection hole, the flow control means controls the cleaning water pressurizing means. And a small amount of washing water is supplied to the second nozzle through the circulation path. Therefore, the amount of water sprayed from the injection hole provided in the first nozzle increases, but the amount of water sprayed from the injection hole provided in the second nozzle is injected at a low pressure. Since it is less than the case where the cleaning water is supplied, it is possible to supply the high-pressure cleaning water to the tableware or the like with the same amount of the cleaning water as when supplying the low-pressure cleaning water.

[0013] The second aspect of the present invention is the first aspect.
In addition to the invention described, when the pressure of the cleaning water pressurizing means is reduced by the control means, the flow rate of the cleaning water to the second nozzle is increased, and in this configuration, in the cleaning and rinsing steps, In the case where the control unit presses the washing water pressurizing unit to reduce the pressure applied to pressurize the washing water and causes the washing water to be jetted at a low pressure from the injection hole, the flow rate control unit sends the washing water from the washing water pressurizing unit through the circulation path. A large amount of washing water is supplied to the second nozzle. Therefore, much low-pressure washing water can be supplied to dishes and the like.

Therefore, it is possible to inject the washing water from the injection hole at a high pressure or a low pressure without keeping the supply amount of the washing water constant and without setting the washing water pressurizing means to the air-blown state. As a result, in the washing and rinsing steps, dishes and the like can be washed with high-pressure washing water or low-pressure washing water. Therefore, it is possible to wash with high-pressure washing water when the dirt on the tableware is severe or strong dirt is attached without increasing the amount of washing water used, and the dirt on the tableware etc. is light. In this case, it can be washed with low-pressure washing water. Furthermore, in the case of high-pressure washing water, washing water can be supplied to a portion far from the first and second nozzles in the washing tank, and in the case of low-pressure washing water, the first and second washing water can be supplied. Since a large amount of cleaning water can be supplied to the vicinity of the nozzle, the cleaning pressure of the cleaning water can be changed to efficiently clean dishes and the like.

According to a third aspect of the present invention, there is provided a washing tank, a tableware for storing dishes and the like, washing water pressurizing means for pressurizing washing water in the washing tank, and the washing water pressurizing means. Control means for controlling, a first nozzle arranged substantially horizontally and a second nozzle arranged substantially vertically, which sprays washing water into the washing tank, the washing water pressurizing means, and A circulation path that connects the first and second nozzles, and a moving body that moves in the second nozzle in conjunction with the pressure of the washing water of the washing water pressurizing means, When the pressure of the cleaning water pressurizing means is increased, the moving body interlocks with the pressure and closes a part of the injection hole for jetting the cleaning water provided in the second nozzle, and the amount of the cleaning water injected. Is to reduce.

With this configuration, in the washing and rinsing steps, when the control means reduces the pressing force of the washing water pressurizing means to pressurize the washing water and injects the washing water at a low pressure from the injection hole, Since the weight of the washing water is greater than the force of the washing water moving the moving body upward, the moving body is located below the second nozzle and opens the injection hole provided in the second nozzle. Therefore, the washing water is injected from the injection holes provided in the first nozzle and the second nozzle. On the other hand, in the case where the control unit increases the pressing force of the cleaning water pressurizing unit to pressurize the cleaning water and injects the cleaning water at a high pressure from the injection hole, the force by which the cleaning water moves the moving body upward is smaller. Since the moving body is larger than its own weight, the moving body is located above the second nozzle and closes the injection hole provided in the second nozzle. Therefore, the cleaning water is jetted from the jet holes provided in the first nozzle and not jetted from the jet holes provided in the second nozzle. Therefore, when the cleaning water is injected at a high pressure, the amount of the cleaning water injected from each injection hole is increased as compared with the case where the cleaning water is injected at a low pressure, but the number of the injection holes for injecting the cleaning water is reduced. Since it can be reduced, the injection amount of the washing water can be made equal to or less than that in the case of injecting at a low pressure.

Therefore, by changing the number of injection holes provided in the second nozzle in conjunction with the pressure of the washing water by the moving body, the amount of water used can be kept constant and washing can be performed at a low pressure or at a high pressure. Since it can be washed, it has a simple and low-cost configuration, and has a function of changing the injection pressure of the washing water with a highly reliable configuration to efficiently wash dishes and the like. .

According to a fourth aspect of the present invention, there is provided a washing tank, a tableware for accommodating dishes and the like, washing water pressurizing means for pressurizing washing water in the washing tank, and the washing water pressurizing means. Control means for controlling, a first nozzle arranged substantially horizontally and a second nozzle arranged substantially vertically, which sprays washing water into the washing tank, the washing water pressurizing means, and A circulation path connecting the first and second nozzles, and a third nozzle that is loosely inserted into the second nozzle and protrudes from the second nozzle in conjunction with the pressing force; When the pressure of the washing water pressurizing means is reduced, the low pressure injection holes provided in the second and third nozzles respectively communicate with each other to inject the washing water, and when the pressure is increased, the third pressure is increased. The second nozzle is linked to the pressure of the wash water by the wash water pressurizing means. Substantially moved in a vertical direction in the cleaning tank to project from, but to reduce the injection of cleaning water by closing the low-pressure injection holes.

Thus, in the washing and rinsing steps, when the control means presses the washing water pressurizing means to pressurize the washing water, the weight of the third nozzle causes the washing water to flow through the third nozzle. The third nozzle is located below the second nozzle, and the first low-pressure injection hole and the second low-pressure injection hole are at the same position and inject cleaning water because the third nozzle is located below the second nozzle. Therefore, the washing water is not only injected from the injection holes provided in the first nozzle and the third nozzle, but also injected from the first low-pressure injection hole through the second low-pressure injection hole. Become. On the other hand, when the control means pressurizes the cleaning water by the cleaning water pressurizing means, the force of the cleaning water moving the third nozzle upward is greater than the weight of the third nozzle. The third nozzle is located above the second nozzle. Therefore, the washing water is injected from the injection holes provided in the first nozzle, and the injection holes provided in the third nozzle are located in the upper part of the washing tank, so the tableware arranged in the upper part of the washing tank. Etc. will be more efficiently cleaned. Further, at this time, since the position of the first low-pressure injection hole and the position of the second low-pressure injection hole are shifted, the cleaning water is not injected from the first low-pressure injection hole via the second low-pressure injection hole. Therefore, when injecting cleaning water at high pressure,
Although the amount of water sprayed from the injection hole is increased from the case where the cleaning water is injected at a low pressure, the cleaning water is not injected from the first low-pressure injection hole via the second low-pressure injection hole. As a result, the number of injection holes for injecting the washing water can be reduced, and the amount of the washing water can be made equal to or less than that in the case of injecting the washing water at a low pressure. Further, when the washing water is sprayed at a high pressure and when the washing water is sprayed at a low pressure, the position of the injection hole provided in the third nozzle changes. Has the effect of being able to.

The invention according to claim 5 of the present invention is the invention according to claim 2.
In addition to the invention as set forth in any one of (4) to (4), in the washing process, the pressing force of the washing water pressurizing means is increased, and in the rinsing process, the pressing force is reduced. In the cleaning process of actively removing and cleaning dirt, high-pressure injection is required.In the rinsing process in which the purpose is to wash away the detergent on the dishes, it is necessary to evenly apply water to the dishes, but not so much high-pressure injection is required. Therefore, the injection pressure from the nozzle was reduced to reduce noise.

[0021]

【Example】

Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 41 denotes a cleaning tank, 42 denotes a water supply valve for supplying cleaning water 43 into the cleaning tank 41, 44 denotes cleaning water pressurizing means, and 45 denotes cleaning water pressurizing means 44 adds cleaning water 43 thereto. This is control means for controlling the pressing force to be applied. Reference numeral 46 denotes a first nozzle, 47 denotes a second nozzle, and the first nozzle 46 is provided in the cleaning tank 41 in a substantially horizontal direction.
Are provided in the washing tank 41 in a substantially vertical direction. Reference numeral 48 denotes an injection hole for injecting the cleaning water 43, which is provided in the first nozzle 46 and the second nozzle 47. 49 is a tableware basket for storing tableware 50 and the like in the washing tank 41, 51 is a filter for collecting residual vegetables and the like, and 52 is a heating element. 53 is washing water 4
3 is a drainage pump for discharging the cleaning liquid outside the machine, 54 is a first circulation path connecting the cleaning tank 41, the cleaning water pressurizing means 44 and the first nozzle 46, 55 is a cleaning tank 41 and the cleaning water pressurizing means 44. This is a second circulation path connecting the second nozzle 47. 56 is a flow rate control means for controlling the flow rate of the wash water 43 supplied from the wash water pressurizing means 44 to the second nozzle 47 via the second circulation path 55, and the second nozzle 47 or the second It is provided in the circulation path 55.

The operation of the above configuration will be described below. A predetermined amount of detergent is put into the washing tank 41, the tableware 50 and the like are stored in the tableware basket 49, and the operation is started. Here, first, the water supply valve 42 is energized to supply the cleaning water 43. When the cleaning water 43 reaches a predetermined amount, the cleaning water pressurizing means 44 operates to pressurize the cleaning water 43 containing the detergent. The pressurized washing water 43 is supplied to the first nozzle 46 and the second nozzle 47 via the circulation path 54, and the first nozzle 4
The fuel is injected from the injection holes 48 provided in the sixth and second nozzles 47. Then, the washing water 43 is supplied to the washing tank 41 and the tableware 5.
0 and so on.

Thus, a washing step of washing the tableware 50 and the like is performed. In this cleaning process, the cleaning water 43 is heated to a predetermined cleaning temperature by energizing the heating element 52. After the washing process for a predetermined time, the washing water 43 containing the dirt and the like washed off from the tableware 50 is discharged by the drain pump 53. Subsequently, the washing water 43 is newly supplied, and the washing water 43 is jetted from the jet holes 48 provided in the first nozzle 46 and the second nozzle 47, whereby the tableware 50 and the like contaminated with the detergent and the garbage are removed. Perform the rinsing process. After the completion of this step, the washing water 43 is discharged outside the machine. Then, this step is repeated several times continuously, and the rinsing step is completed. The residual vegetables are collected in a filter 51 provided in the washing tank 41. After the rinsing step is completed, the operation of the dishwasher for washing the tableware 50 is ended.

According to the first embodiment of the present invention configured as described above, in the cleaning and rinsing steps, the control means 4 is used.
In the case where the cleaning water pressurizing means 44 pressurizes the cleaning water 43 by 5 and the cleaning water 43 is jetted at a low pressure from the injection hole 48 by the flow rate control means 56, the flow rate control means 56 causes the cleaning water pressurizing means 44 to A large amount of washing water 43 is supplied to the second nozzle 47 via the second circulation path 55. Therefore, much low-pressure washing water 43 can be supplied to the tableware 50 and the like.

On the other hand, when the cleaning water pressurizing means 44 increases the pressure for pressurizing the cleaning water 43 by the control means 45 and injects the cleaning water 43 from the injection hole 48 at a high pressure, the flow rate control means 56 performs the cleaning. A small amount of washing water 43 is supplied from the water pressurizing means 44 to the second nozzle 47 through the second circulation path 55.
Is supplied. Therefore, the first nozzle 46
The amount of the cleaning water 43 injected from the injection hole 48 provided in the second nozzle 47 increases, but the amount of the cleaning water 43 injected from the injection hole 48 provided in the second nozzle 47 is jetted at a low pressure. Since the amount is smaller than that in the case, the high-pressure washing water 43 can be supplied to the tableware 50 and the like with the same amount of the cleaning water 43 as when supplying the low-pressure washing water 43.

As described above, the washing water 43 is supplied at a high pressure or a low pressure without changing the washing water pressurizing means 44 to a state in which the air mixed with air is kept at a constant water supply amount of the washing water 43. Therefore, in the washing and rinsing steps, the tableware 50 and the like can be washed with the high-pressure washing water 43 or the low-pressure washing water 43. Therefore, it is possible to wash the tableware 50 and the like with the high-pressure washing water 43 when the dirt on the tableware 50 or the like is severe or strong dirt is attached without increasing the amount of water used for the tableware 50 or the like. If the dirt is light, it can be washed with the low-pressure washing water 43.

Further, in the case of the high-pressure cleaning water 43, the cleaning water 43 can be supplied to the portion far from the first and second nozzles 46 and 47 in the cleaning tank 41, and the low-pressure cleaning water 43 can be supplied. In the case of 43, the first and second nozzles 46,
Since a large amount of cleaning water 43 can be supplied to the vicinity of the tableware 47, the injection pressure of the cleaning water 43 is changed to efficiently change the
Cleaning such as 0 can be performed.

(Embodiment 2) The overall configuration is the same as that of the first embodiment, and a description thereof will be omitted. However, FIGS. 2 and 3
4 and FIG. 4, reference numeral 57 denotes a moving body which moves in the vertical direction in the second nozzle 47 in conjunction with the pressure of the cleaning water 43, and when the pressure of the cleaning water 43 is small, it is shown in FIG. As described above, the weight of the moving body 57 is smaller than that of the washing water 43 by the moving body 5.
7 is larger than the force for moving the moving body 7 upward.
Is located below the second nozzle 47, and when the pressure of the cleaning water 43 is large, the force by which the cleaning water 43 moves the moving body 57 upward is higher than that of the moving body 57, as shown in FIG. The moving body 57 is located above the second nozzle 47 because it is larger than its own weight.

According to the second embodiment of the present invention configured as described above, in the cleaning and rinsing steps, the control means 4 is used.
In the case where the cleaning water pressurizing means 44 reduces the pressure for pressurizing the cleaning water 43 by 5 and injects the cleaning water 43 from the injection hole 48 at a low pressure, as shown in FIG. Since the cleaning water 43 is larger than the force for moving the moving body 57 upward, the moving body 57 is located below the second nozzle 47 and opens the injection hole 48 provided in the second nozzle 47. Therefore, the cleaning water 43 is injected from the injection holes 48 provided in the first nozzle 46 and the second nozzle 47.

On the other hand, when the control means 45 causes the cleaning water pressurizing means 44 to increase the pressure for pressurizing the cleaning water 43 and inject the cleaning water 43 from the injection hole 48 at a high pressure, FIG.
As shown in (2), the force by which the cleaning water 43 moves the moving body 57 upward is greater than the weight of the moving body 57, and therefore the moving body 57 is located above the second nozzle 47 and Closes the injection hole 48 provided in the nozzle. Therefore, the cleaning water 43 is jetted from the jet holes 48 provided in the first nozzle 47 and not jetted from the jet holes 48 provided in the second nozzle 47. Therefore, when the cleaning water 43 is injected at a high pressure, the cleaning water 43 injected from the respective injection holes 48 is more than when the cleaning water 43 is injected at a low pressure.
Is increased, but the number of the injection holes 48 for injecting the cleaning water 43 can be reduced.
Can be equal to or less than the case of injecting at low pressure.

As described above, the number of injection holes 48 provided in the second nozzle 47 is changed by the moving body 57 in conjunction with the pressure of the cleaning water 43, so that the amount of water used is kept constant and cleaning is performed at a low pressure. Cleaning can be performed at high pressure, so that the tableware 50 and the like can be efficiently cleaned by changing the injection pressure of the cleaning water 43 with a simple and low-cost configuration, and with a highly reliable configuration. be able to.

The pressing force for pressurizing the washing water 43 is increased stepwise by the washing water pressurizing means 44, and the moving body 57 moves upward in the second nozzle 47 stepwise in conjunction therewith. Then, the number of the injection holes 48 for injecting the cleaning water 43 may be gradually reduced by closing the injection holes 48 provided in the second nozzle 47, or vice versa.

As shown in FIG. 5, the second nozzle 4
7 is disposed at substantially the center of the first nozzle 46, and the washing water 43 is injected from the injection holes 48 provided in the second nozzle 47 while the second nozzle 47 rotates similarly to the first nozzle 46. If the washing water 43 is supplied to the tableware 50 and the like, the tableware 50 can be more efficiently cleaned, which is more preferable.

(Embodiment 3) The overall configuration is the same as that of the first embodiment, and a description thereof will be omitted. However, FIGS. 6 and 7
8, in FIG. 8, reference numeral 58 denotes a third nozzle provided in the second nozzle 47, and protrudes from the second nozzle 47 in conjunction with the pressure of the cleaning water 43 and moves in the cleaning tank 41 in a substantially vertical direction. I do. 59 is a first low-pressure injection hole, 60 is a second low-pressure injection hole, the first low-pressure injection hole 59 is provided in the second nozzle 47, and the second low-pressure injection hole 60 is connected to the third nozzle 58. Provided. When the pressure of the cleaning water 43 is small, the weight of the third nozzle 58 is greater than the force of the cleaning water 43 moving the third nozzle 58 upward, as shown in FIG. The third nozzle 58 is located below the second nozzle 56, and the first low-pressure injection hole 59 and the second low-pressure injection hole 60 are located at the same position, so that the cleaning water 43 can be injected. When the pressure of the washing water 43 is large, as shown in FIG.
Is higher than the weight of the third nozzle 58, the third nozzle 58 is connected to the second nozzle 47.
, The first low-pressure injection hole 59 and the second low-pressure injection hole 60 are displaced from each other, so that the cleaning water 43 cannot be injected.

According to the third embodiment of the present invention configured as described above, in the cleaning and rinsing steps, the control means 4 is used.
In the case where the pressure applied by the cleaning water pressurizing means 44 to pressurize the cleaning water 43 is small due to 5, the weight of the third nozzle 58 is higher than that of the third nozzle 58 as shown in FIG. The third nozzle 58 is located below the second nozzle 47 and the first low-pressure injection hole 5
9 and the second low pressure injection hole 60 are at the same position,
Inject 3 Therefore, the cleaning water 43 is supplied to the first nozzle 4
In addition to the injection from the injection holes 48 provided in the sixth and third nozzles 58, the injection is also performed from the first low-pressure injection holes 59 via the second low-pressure injection holes 60. On the other hand, the control means 45 controls the cleaning water
When the pressure for pressurizing the third nozzle 3 is large, as shown in FIG. 8, the force by which the cleaning water 43 moves the third nozzle 58 upward is greater than the weight of the third nozzle 58. The nozzle 58 is located above the second nozzle 47.
Therefore, the cleaning water 43 is injected from the injection holes 48 provided in the first nozzle 46, and the injection holes 48 provided in the third nozzle 58 are located at the upper part in the cleaning tank 41, so that the cleaning tank 41 is provided. The tableware 50 and the like arranged on the upper part of the table are more efficiently cleaned.

Further, at this time, since the positions of the first low-pressure injection hole 59 and the second low-pressure injection hole 60 are shifted, the washing water 43 is supplied from the first low-pressure injection hole 59 through the second low-pressure injection hole 60.
Will not be injected. Accordingly, when the cleaning water 43 is injected at a high pressure, the amount of the cleaning water 43 injected from the injection holes 48 is increased as compared with the case where the cleaning water 43 is injected at a low pressure. Since the cleaning water 43 is not injected from the first low-pressure injection holes 59 through the first through-hole, the number of injection holes for injecting the cleaning water 43 can be reduced as a whole, which is equivalent to the case where the injection amount of the cleaning water 43 is injected at a low pressure. Or less. In the case where the cleaning water 43 is injected at a high pressure and when the cleaning water 43 is injected at a low pressure, the injection holes 48 provided in the third nozzle 58 are provided.
Is changed, the tableware 50 can be washed by changing the position where the washing water 43 is injected.

As in the second embodiment, as shown in FIG. 9, the second nozzle 47 and the third nozzle 58 are arranged substantially at the center of the first nozzle 46, and the first nozzle Similarly to 46, while the second nozzle 47 and the third nozzle 58 rotate, the injection holes 48, the first low-pressure injection holes 59, and the second low-pressure holes provided in the second nozzle 47 and the third nozzle 58 are provided. It is more preferable to wash the washing water 43 from the injection hole 60 and supply the washing water 43 to the tableware 50 or the like because the tableware 50 can be more efficiently washed.

[0039]

As described above, according to the first aspect of the present invention, there is provided a washing tank, a tableware for storing dishes and the like, washing water pressurizing means for pressurizing washing water in the washing tank, Control means for controlling the washing water pressurizing means, a first nozzle arranged substantially horizontally and a second nozzle arranged substantially vertically for spraying washing water into the washing tank, A circulation path connecting the water pressurizing means and the first and second nozzles, and being provided in the second nozzle or the circulation path, supplying the cleaning water pressurizing means to the second nozzle; And a flow rate control means for changing a flow rate of the wash water, wherein when the control means increases the pressure of the wash water pressurizing means, the flow rate of the wash water to the second nozzle is reduced.

According to this configuration, when the control means presses the cleaning water to increase the pressure for pressurizing the cleaning water and injects the cleaning water at a high pressure from the injection hole, the flow control means controls the cleaning water pressurizing means. And a small amount of washing water is supplied to the second nozzle through the circulation path. Therefore, the amount of water sprayed from the injection hole provided in the first nozzle increases, but the amount of water sprayed from the injection hole provided in the second nozzle is injected at a low pressure. Since it is less than the case where the cleaning water is supplied, it is possible to supply the high-pressure cleaning water to the tableware or the like with the same amount of the cleaning water as when supplying the low-pressure cleaning water.

The invention according to claim 2 of the present invention further comprises:
When the pressure of the washing water pressurizing means is reduced by the control means, the flow rate of the washing water to the second nozzle is increased. With this configuration, in the washing and rinsing steps, the washing water is added by the control means. When the pressure means pressurizes the washing water to reduce the pressure to jet the washing water at a low pressure from the injection hole, a large amount of the water is supplied from the washing water pressurizing means to the second nozzle via the circulation path by the flow rate control means. Ensure that wash water is supplied. Therefore, much low-pressure washing water can be supplied to dishes and the like.

Therefore, it is possible to inject the cleaning water from the injection hole at a high pressure or a low pressure without making the supply amount of the cleaning water constant and setting the cleaning water pressurizing means to a state in which the air mixed with the air is seen. As a result, in the washing and rinsing steps, dishes and the like can be washed with high-pressure washing water or low-pressure washing water. Therefore, it is possible to wash with high-pressure washing water when the dirt on the tableware is severe or strong dirt is attached without increasing the amount of washing water used, and the dirt on the tableware etc. is light. In this case, it can be washed with low-pressure washing water. Furthermore, in the case of high-pressure washing water, washing water can be supplied to a portion far from the first and second nozzles in the washing tank, and in the case of low-pressure washing water, the first and second washing water can be supplied. Since a large amount of cleaning water can be supplied to the vicinity of the nozzle, the cleaning pressure of the cleaning water can be changed to efficiently clean dishes and the like.

According to a third aspect of the present invention, there is provided a moving body which moves in the second nozzle in conjunction with the pressure of the washing water of the washing water pressurizing means, and wherein the control means controls the dispensing of the washing water. When the pressing force of the pressure means is increased, the moving body closes a part of the injection hole for injecting the washing water provided in the second nozzle in conjunction with the pressing force and reduces the amount of the washing water injected. Things.

According to this configuration, in the washing and rinsing steps, when the control means reduces the pressure applied to the washing water by the washing water pressurizing means to inject the washing water from the injection hole at a low pressure, Since the weight of the washing water is greater than the force of the washing water moving the moving body upward, the moving body is located below the second nozzle and opens the injection hole provided in the second nozzle. Therefore, the washing water is injected from the injection holes provided in the first nozzle and the second nozzle. On the other hand, in the case where the control unit increases the pressing force of the cleaning water pressurizing unit to pressurize the cleaning water and injects the cleaning water at a high pressure from the injection hole, the force by which the cleaning water moves the moving body upward is smaller. Since the moving body is larger than its own weight, the moving body is located above the second nozzle and closes the injection hole provided in the second nozzle. Therefore, the cleaning water is jetted from the jet holes provided in the first nozzle and not jetted from the jet holes provided in the second nozzle. Therefore, when the cleaning water is injected at a high pressure, the amount of the cleaning water injected from each injection hole is increased as compared with the case where the cleaning water is injected at a low pressure, but the number of the injection holes for injecting the cleaning water is reduced. Since it can be reduced, the injection amount of the washing water can be made equal to or less than that in the case of injecting at a low pressure.

Therefore, by changing the number of injection holes provided in the second nozzle in conjunction with the pressure of the washing water by the moving body, the amount of water used can be kept constant and the washing can be carried out at a low pressure or at a high pressure. Since it can be washed, it has a simple and low-cost configuration, and has a function of changing the injection pressure of the washing water with a highly reliable configuration to efficiently wash dishes and the like. .

According to a fourth aspect of the present invention, there is provided a third nozzle which is loosely inserted into the second nozzle and protrudes from the second nozzle in conjunction with the pressure. When the pressure of the pressurizing means is reduced, the low-pressure injection holes provided in the second and third nozzles respectively communicate with each other to inject cleaning water, and when the pressure is increased, the third nozzle is used. Is projected from the second nozzle in conjunction with the pressure of the washing water of the washing water pressurizing means, moves in the washing tank in a substantially vertical direction, and closes the low-pressure injection hole to reduce the ejection of the washing water. Things.

In this way, in the washing and rinsing steps, when the control means presses the washing water pressurizing means to pressurize the washing water, the own weight of the third nozzle causes the washing water to flow through the third nozzle. The third nozzle is located below the second nozzle, and the first low-pressure injection hole and the second low-pressure injection hole are at the same position and inject cleaning water because the third nozzle is located below the second nozzle. Therefore, the washing water is not only injected from the injection holes provided in the first nozzle and the third nozzle, but also injected from the first low-pressure injection hole through the second low-pressure injection hole. Become. On the other hand, when the control means pressurizes the cleaning water by the cleaning water pressurizing means, the force of the cleaning water moving the third nozzle upward is greater than the weight of the third nozzle. The third nozzle is located above the second nozzle. Therefore, the washing water is injected from the injection holes provided in the first nozzle, and the injection holes provided in the third nozzle are located in the upper part of the washing tank, so the tableware arranged in the upper part of the washing tank. Etc. will be more efficiently cleaned. Further, at this time, since the position of the first low-pressure injection hole and the position of the second low-pressure injection hole are shifted, the cleaning water is not injected from the first low-pressure injection hole via the second low-pressure injection hole. Therefore, when injecting cleaning water at high pressure,
Although the amount of water sprayed from the injection hole is increased from the case where the cleaning water is injected at a low pressure, the cleaning water is not injected from the first low-pressure injection hole via the second low-pressure injection hole. As a result, the number of injection holes for injecting the washing water can be reduced, and the amount of the washing water can be made equal to or less than that in the case of injecting the washing water at a low pressure. Further, when the washing water is sprayed at a high pressure and when the washing water is sprayed at a low pressure, the position of the injection hole provided in the third nozzle changes. Has the effect of being able to.

The fifth aspect of the present invention provides the second aspect.
In addition to the invention as set forth in any one of (4) to (4), in the washing process, the pressing force of the washing water pressurizing means is increased, and in the rinsing process, the pressing force is reduced. In the cleaning process of actively removing and cleaning dirt, high-pressure injection is required.In the rinsing process in which the purpose is to wash away the detergent on the dishes, it is necessary to evenly apply water to the dishes, but not so much high-pressure injection is required. Therefore, the injection pressure from the nozzle was reduced to reduce noise.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a dishwasher according to a second embodiment of the present invention.

FIG. 3 is an operation diagram of a peripheral portion of a second nozzle in low-pressure washing of the dishwasher.

FIG. 4 is an operation diagram around a second nozzle in high-pressure washing of the dishwasher.

FIG. 5 is a view of the dishwasher in which a second nozzle is arranged at a substantially central portion of the first nozzle.

FIG. 6 is a configuration diagram of a dishwasher according to a third embodiment of the present invention.

FIG. 7 is an operation diagram of the periphery of the second and third nozzles in high-pressure washing of the dishwasher.

FIG. 8 is an operation diagram of the periphery of the second and third nozzles in low-pressure washing of the dishwasher.

FIG. 9 is a view of the dishwasher in which second and third nozzles are arranged substantially at the center of the first nozzle.

FIG. 10 is a configuration diagram of a conventional dishwasher.

[Explanation of symbols]

 41 Cleaning tank 43 Cleaning water 44 Cleaning water pressurizing means 45 Control means 46 First nozzle 47 Second nozzle 48 Injection hole 52 Heating element 56 Flow control means 57 Moving body 58 Third nozzle 59 First low-pressure injection hole 60 Second low pressure injection hole

Claims (5)

[Claims] A washing tank, a tableware for storing dishes and the like, washing water pressurizing means for pressurizing washing water in the washing tank, control means for controlling the washing water pressurizing means; A first nozzle arranged in a substantially horizontal direction and a second nozzle arranged in a substantially vertical direction for injecting washing water into the tank,
A circulation path that connects the cleaning water pressurizing means and the first and second nozzles, and is disposed in the second nozzle or the circulation path, from the cleaning water pressurizing means to the second nozzle; And a flow control means for changing a flow rate of the supplied wash water, wherein the control means increases the pressure of the wash water pressurizing means, and reduces the flow rate of the wash water to the second nozzle. Machine. 2. The dishwasher according to claim 1, wherein the flow rate of the washing water to the second nozzle is increased when the pressure of the washing water pressurizing means is reduced by the control means. 3. A cleaning tank, a tableware for storing dishes and the like, cleaning water pressurizing means for pressurizing cleaning water in the cleaning tank, control means for controlling the cleaning water pressurizing means, and the cleaning A first nozzle arranged in a substantially horizontal direction and a second nozzle arranged in a substantially vertical direction for injecting washing water into the tank,
A circulation path connecting the cleaning water pressurizing unit and the first and second nozzles, and a moving body that moves in the second nozzle in conjunction with the pressure of the cleaning water of the cleaning water pressing unit. When the pressure of the washing water pressurizing means is increased by the control means, the movable body is part of an injection hole for ejecting washing water provided in the second nozzle in conjunction with the pressure. A dishwasher that closes and reduces the amount of washing water that is sprayed. 4. A washing tank, a tableware for storing dishes and the like, washing water pressurizing means for pressurizing washing water in the washing tank, control means for controlling the washing water pressurizing means, and the washing A first nozzle arranged in a substantially horizontal direction and a second nozzle arranged in a substantially vertical direction for injecting washing water into the tank,
A circulation path connecting the cleaning water pressurizing means and the first and second nozzles, and a third nozzle that is loosely inserted into the second nozzle and protrudes from the second nozzle in conjunction with the pressing force; When the pressure of the washing water pressurizing means is reduced by the control means, the low-pressure injection holes respectively provided in the second and third nozzles communicate with each other to inject the washing water, When the pressure is increased, the third nozzle protrudes from the second nozzle in conjunction with the pressure of the cleaning water of the cleaning water pressurizing means and moves in the cleaning tank in a substantially vertical direction to close the low-pressure injection hole. Dishwasher that reduces the injection of washing water by doing. 5. The dishwasher according to claim 2, wherein the pressing force of the washing water pressurizing means is increased in a washing step, and the pressing force is reduced in a rinsing step.