JPH05184514A - Tableware washing machine - Google Patents

Abstract

(57) [Summary] [Purpose] In the conventional dishwasher, small objects such as knives and spoons may drop from the dish basket during the washing process, and the rotation of the washing nozzle may stop. Therefore, an object of the present invention is to provide a highly reliable dishwasher in which the rotation of the washing nozzle does not stop even if small articles or the like fall during the washing process. [Composition] Washing tank 20 and tableware storage basket 2
8 and a cleaning pump 2 for circulating the cleaning water in the cleaning tank
2 and a cleaning nozzle 23 having a spray hole for spraying cleaning water
And a washing machine in which the washing nozzle is formed in a disc shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher used in ordinary households.

[0002]

2. Description of the Related Art A conventional dishwasher will be described below with reference to FIG. After storing the tableware 1 and the tableware basket 3 containing the small items 2 such as spoons and knives in a predetermined place,
Add detergent and start operation. First, the water supply valve 4 operates to supply a predetermined amount of cleaning water 5 to the cleaning tank 6. continue,
The washing water 5 is pressurized by the washing pump 7 and sprayed from the washing nozzle 8 together with the detergent. Thus, the main washing step is performed. In this main washing step, the heater 9 provided in the washing tank 6
Is energized to heat the cleaning water 5 to a predetermined temperature.

After a predetermined time of main washing step, the washing water 5 containing the dirt washed off from the dishes 1 and the small articles 2 is drained to the outside of the machine by the operation of the drainage pump 10. Subsequent to this drainage step, the main washing step of newly supplying the wash water 5 to execute the above-mentioned operation is performed again. By this main washing step, the dishware 1 soiled with detergent or residual food (food left on the dishes as soil) is sprayed from the cleaning nozzle 8 to be rinsed. After this, the washing water 5 is discharged to the outside of the machine again. 4 steps above
The rinsing process is completed by repeating the rinsing process. The residual food is collected in the filter 11 provided in the cleaning tank 6.

When the rinsing process is completed, the heater 9 is energized to heat the inside of the cleaning tank to a predetermined temperature. Thus, the tableware 1 is heated and dried. The drying process for this predetermined time is completed, and all the washing and drying processes are completed.

[0005]

However, in the conventional dishwasher, as shown in FIG. 6, when dishes or small articles fall from the dish basket into the rotation locus of the washing nozzle,
There is a problem that the cleaning nozzle stops rotating and cleaning fails.

Another problem is that the cleaning power of the cleaning water sprayed from the cleaning nozzle and falling after hitting the dishes is not fully utilized. In addition, there is a problem that the dishes and small articles arranged at the corners of the cleaning tank are poorly cleaned.

SUMMARY OF THE INVENTION The present invention is intended to solve the problems of the above-mentioned conventional structure. It is an object of the present invention to provide a dishwasher in which the rotation of the washing nozzle does not stop even if a small object or the like falls. It is one purpose.

It is a second object of the present invention to provide a dishwasher with improved cleaning performance by uniformly dropping the cleaning water sprayed from the cleaning nozzle.

A third object of the present invention is to provide a dishwasher with improved cleaning power at the corners of the cleaning tank.

[0010]

[Means for Solving the Problems] A first means of the present invention for achieving the first object is a washing tank, a dish basket for storing dishes, and a washing for circulating washing water in the washing tank. The dishwasher is provided with a pump and a washing nozzle having an injection hole for injecting washing water, and the washing nozzle is formed in a disk shape.

A second means of the present invention for attaining the second object is, in addition to the constitution of the first means of the present invention,
The dishwasher is provided with a drip hole penetrating the washing nozzle.

A third means of the present invention for achieving the third object is, in addition to the constitution of the first means of the present invention,
The dishwasher is provided with a guide rib for guiding washing water on the upper surface of the washing nozzle.

[0013]

According to the first means of the present invention, since the disc-shaped cleaning nozzle is used, even if a small object such as a knife or spoon falls from the table basket, it does not affect the rotation of the cleaning nozzle. ..

The second means of the present invention is, in addition to the above-mentioned action,
A drip hole penetrating the cleaning nozzle works effectively. That is, the washing water sprayed from the washing nozzle and hitting the dishes and falling is temporarily stored in the washing nozzle and then drops from the dropping hole. That is, the washing water can be uniformly dropped onto the tableware arranged below the drop hole. Therefore, if the arrangement of the drip holes is properly selected, the cleaning performance can be improved without increasing the water power of the cleaning pump.

Further, the third means of the present invention operates so as to surely wash the dishes and small articles arranged in the corner portion of the washing tank. That is, the cleaning water sprayed from the spray holes, hitting the dishes and falling on the disc-shaped cleaning nozzle,
Under the action of the centrifugal force of the guide rib and the rotating cleaning nozzle, the cleaning nozzle is shaken off from the outer peripheral edge of the cleaning nozzle. Therefore, the dishes placed under the washing nozzle, that is, the dishes placed at the corner of the washing tank can be effectively washed, and the washing performance can be improved without increasing the water power of the washing pump.

[0016]

【Example】

(Embodiment 1) An embodiment of the first means of the present invention will be described below with reference to FIGS. Cleaning tank 20, water supply valve 21 for supplying cleaning water 5 into cleaning tank 20, cleaning pump 22
The tableware storage basket 28 has the same structure as the conventional one. Reference numeral 23 is a washing nozzle, which has a disk-like shape having a depth capable of rolling over even if a small object such as a spoon or a knife stored in the tableware storage basket 28 falls on the basket. In addition, the cleaning nozzle 23 is the cleaning pump 2
2 is rotatably attached and has a plurality of injection ports 24 for injecting the cleaning water 5. Reference numeral 25 denotes a filter for collecting the leftover foods, and a drain port 27 communicating with the suction port of the cleaning pump 22 and the suction port of the drainage pump 26 is provided in the lower portion of the filter 25. 29 is a heater for heating the washing water 5, and 30 and 31 are dishes and accessories.

The operation of this embodiment will be described below. Put a predetermined amount of detergent and wash dishes 29 and small items 31 in the washing tank 20.
Store inside and start operation. The water supply valve 21 is energized and a predetermined amount of cleaning water 5 is supplied. Then, the cleaning pump 22 is operated to pressurize the cleaning water 5 containing the detergent and supply it to the cleaning nozzle 23. Cleaning water 5 supplied to the cleaning nozzle 23
Is ejected from the ejection hole 24. The tableware 29 and the small articles 31 housed in the washing tank are washed by receiving the mechanical force of the jetted washing water. At this time, the cleaning nozzle 23
Causes rotational movement due to the jet reaction force when the washing water 5 is jetted from the jet holes 24. In other words, tableware 29 and accessories 31
Continues to receive the mechanical force of the cleaning water containing the detergent sprayed from the spray holes 24 of the rotating cleaning nozzle 23. At the same time, the heater 29 is energized to heat the wash water to a predetermined temperature.

In this way, the tableware 29 and the small articles 31 are washed and heated and dried in the same manner as described in the conventional example.

At this time, this embodiment works effectively when the small articles 31 and the like drop from the tableware basket 28 onto the washing nozzle 23 during the washing process. In other words, the cleaning nozzle 23 is formed in a disk shape, and the dropped small objects can be easily overturned. Therefore, the cleaning nozzle 23 can rotate by sliding on this small object and continue rotating without being affected by the dropped small object.

(Embodiment 2) An embodiment of the second means of the present invention will be described below with reference to the drawings. The overall configuration of this embodiment is almost the same as that of FIG. 1 and its description is omitted.

In FIG. 3, reference numeral 32 denotes a disk-shaped cleaning nozzle, which is rotatably attached to the cleaning pump 22. The cleaning nozzle 32 has a spray hole 33 for spraying cleaning water,
It has a drip port 34. The drip port 34 is the cleaning nozzle 3
Penetrates 2.

The operation of this embodiment will be described below. The operation method is the same as that in the first embodiment, and the description is omitted. In this embodiment, the cleaning nozzle 32 has a disk shape and has a drip hole 34 penetrating the cleaning nozzle 32. The washing water 5 jetted upward from the jet holes 33 collides with the dishes 30 set in the dish basket 28 and stored in the washing tank 20 and falls, and is received by the disc-shaped washing nozzle 32. The cleaning water drops from a drip hole 34 that is appropriately arranged in the cleaning nozzle 32, hits the small articles 31 and the like accommodated therebelow, and is drained out of the machine through a drain port 27. Therefore, if the arrangement position of the drip hole 34 is appropriately selected and the cleaning water is uniformly applied to the dishes 30 and the small articles 31, the cleaning performance can be improved without increasing the water power of the cleaning pump 22. ..

(Embodiment 3) An embodiment of the third means of the present invention will be described below with reference to the drawings. In FIG. 4, reference numeral 35 denotes a disc-shaped cleaning nozzle, which is rotatably attached to the cleaning pump 22. In this embodiment, the cleaning nozzle 35 has an injection hole 36 and a guide rib 37. Is an injection port provided in the cleaning nozzle 35, and 37 is a guide rib provided in the cleaning nozzle 35. In addition,
The operation method is the same as that of the first embodiment, and the description is omitted. The cleaning nozzle 35 of this embodiment operates as follows. The cleaning water sprayed from the spray holes 36 and hitting the dishes 30 falls on the disk-shaped cleaning nozzle 35. Here, a guide rib 37 is provided on the upper surface of the cleaning nozzle 35, and the cleaning water is guided by the guide rib 37 and is subjected to a centrifugal force due to the rotation of the cleaning nozzle 35, so that the outer peripheral end of the cleaning nozzle 35. Shaken off by. Therefore, the dishes 30 located under the washing nozzle 35 are washed again with this washing water. In this case, the tableware 30 located under the cleaning nozzle 35 is, in other words, the tableware 30 located at the corner of the cleaning tank 20.

That is, according to this embodiment, the cleaning pump 22
It is possible to reliably wash the dishes 30 arranged at the corners of the washing tank 20 without increasing the water power of
The cleaning performance can be improved.

As a matter of course, if the dropping port 34 of the second embodiment and the guide rib 37 of the third embodiment are provided together with the cleaning nozzle, both effects can be obtained.

[0026]

As described above, according to the first means of the present invention, in particular, by forming the cleaning nozzle into a disk shape,
It is possible to provide a dishwasher in which the rotation of the cleaning nozzle does not stop even if small items drop during the cleaning process.

According to the second means of the present invention, by adding a dropping hole penetrating the cleaning nozzle to the structure of the first means of the present invention, the water power of the cleaning pump is not increased. In addition, the cleaning performance can be improved.

Further, according to the third means of the present invention, by adding a guide rib for guiding the cleaning water provided on the upper surface of the cleaning nozzle to the structure of the first means of the present invention,
It is possible to enhance the cleaning power for dishes and small articles at the corner of the cleaning tank without increasing the water power of the cleaning pump.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the cleaning nozzle.

FIG. 3 is a plan view of a cleaning nozzle according to an embodiment of the second means of the present invention.

FIG. 4 is a plan view of a cleaning nozzle according to an embodiment of the third means of the present invention.

FIG. 5 is a vertical sectional view of a conventional dishwasher.

FIG. 6 is a plan view of the cleaning nozzle.

[Explanation of symbols]

 20 Cleaning Tank 22 Cleaning Pump 23, 32, 35 Cleaning Nozzle 24, 33, 36 Jet Port 28 Tableware Basket 34 Drip Port 37 Guide Rib

Claims (3)

[Claims] 1. A washing tank, a dish storage basket for holding dishes, and a washing pump for circulating the washing water in the washing tank,
A dishwasher comprising a cleaning nozzle having a spray hole for spraying cleaning water, the cleaning nozzle having a disk shape. 2. The dishwasher according to claim 1, further comprising a drip hole penetrating the washing nozzle. 3. The dishwasher according to claim 1, wherein a guide rib for guiding wash water is provided on the upper surface of the wash nozzle.