JPH084937Y2 - Dishwasher - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises at least a wash water tank and a wash water injection nozzle, which are connected by a pipe line, and in which the wash water in the wash water tank is injected from the wash water injection nozzle to produce dishes. The present invention relates to a dishwasher adapted to wash items.

[0002]

2. Description of the Related Art A dishwasher is disclosed, for example, in Japanese Patent Laid-Open No. 3-683.
No. 25, No. 52-167267, No. 60-2
As disclosed in Japanese Patent No. 0362, etc., as is well known in the art and generally shown in FIG. 5, a cleaning chamber 2 located above and a cleaning water tank 3 located below it.
And a rinse water tank 4. In the washing chamber 2, washing water jetting blocks 5 and 6 having a plurality of washing water jetting nozzles and rinsing water jetting blocks 7 and 8 similarly having a plurality of rinsing water jetting nozzles are arranged at predetermined intervals. It is provided facing downward and upward. The wash water injection blocks 5 and 6 and the wash water tank 3 are connected by a pipe line 9. A pump 10 for pressure-feeding cleaning water is provided in the pipe line 9. A washing water tank 3 is provided at an opening at the bottom of the washing chamber 2, and a first filter 11 is arranged above the tank 3. A second filter 12 is also provided on the bottom of the wash water tank 3, and a discharge pipe 13 is connected via this filter 12. The discharge pipe 13 is the pump 1
It is connected to the 0 suction port. An on-off valve 14 is provided below the discharge pipe 13, and an overflow pipe 15 that opens to a predetermined depth in the wash water tank 3 joins below the on-off valve 14. The rinse water injection blocks 7 and 8 and the rinse water tank 4 are connected by a pipe 16, and a pump 17 is also interposed in the pipe 16. The rinse water tank 4 is provided with, for example, a water supply pipe 18 for supplying tap water, an overflow pipe 19 for discharging a predetermined amount of rinse water, a discharge pipe 20 used for cleaning and the like. A branch pipe 21 is branched from the pipe 16, and the detergent tank 2 is connected to the branch pipe 21.
An ejector 22 for sucking the detergent in 3 is provided.

Therefore, the pump 10 for pumping the wash water is activated to inject the wash water in the wash water tank 3 from the upper and lower wash water injection blocks 5 and 6 to remove the tableware placed in the wash chamber 2. Can be washed. The washing water passes through the first filter 11 from the bottom of the washing chamber 2 and is collected in the washing water tank 3. The detergent in the detergent tank 23 is also sucked by the ejector 22 and supplied to the wash water tank 3. After cleaning for a predetermined time, for example, the controller 10 stops the pump 10 for pressure-feeding cleaning water and activates the pump 17 for rinsing. The rinse water is sprayed from the rinse water spray blocks 7 and 8 onto the tableware. Since the rinse water is not dirty, it is stored in the wash water tank 3 and used for the next wash.

[0004]

In the conventional dishwasher described above, the first filter 11 is provided above the wash water tank 3 so that solid matters such as food dregs produced in the washing chamber 2 are filtered. In addition, since the second filter 12 is provided at the outlet of the wash water tank 3, the pump 10, the pipe line 9, the wash water injection nozzle, etc. do not become clogged during washing. When the first and second filters 11 and 12 are clogged, they can be taken out and cleaned, so that there is no problem of clogging. However, since the measures after taking out and cleaning are not taken, it may cause a problem. That is, the user may forget to install the filter. Even if there is no filter, there is no particular obstacle to the cleaning action, so the cleaning will be continued, but if it continues, solid matters such as food dregs and leftovers that come out of the tableware will be pump 10, pipe line 9, cleaning water injection nozzle. Etc. will be stuck. Once clogged, it cannot be washed unless it is removed by a great deal of labor and time. Therefore, an object of the present invention is to provide a dishwasher in which foreign matter is not clogged in the wash water jet nozzle or the like.

[0005]

In order to achieve the above-mentioned object, the present invention comprises at least a wash water tank and a wash water injection nozzle, which are connected by a pipe line, so that the wash water in the wash water tank is In a dishwasher that is designed to wash dishes by jetting from the wash water jet nozzle,
An opening for mounting a filter is formed in the conduit, and the opening is configured to be closed when the filter member is mounted.

[0006]

Since the present invention is constructed as described above,
Install the filter member from the opening for mounting the filter.
Then, the opening is blocked. Then, for example, a pump for pressure-feeding the cleaning water is started. Then, the wash water is pressure-fed from the wash water tank to the wash water injection nozzle through the pipe line. At this time, since the filter is attached to the pipe line, the wash water is filtered without being discharged from the pipe line and is jetted from the wash water jet nozzle. Therefore, the dishes are washed. After a lapse of a predetermined time or a predetermined period, the filter is taken out from the filter mounting portion and cleaned. After cleaning, attach and use. Even if the user forgets to install the filter and tries to clean it, the cleaning water is discharged to the outside of the pipeline because the opening for mounting the filter is open, and the cleaning cannot be performed.

[0007]

EXAMPLES Hereinafter, referring to FIGS. 1, 2, 3 and 4, openings for mounting a filter were respectively carried out at a filter box, a corner portion of a pipe line and a portion where the pipe line was bent in an arc shape.
An example will be described. In the present invention, the filter mounted from the opening for mounting the filter of the pipeline can be integrated with the lid or can be implemented separately. Therefore, these are also included in the filter member. Although the same members as those of the conventional example shown in FIG. 5 are designated by the same reference numerals and will not be described redundantly, according to the present embodiment, as shown in FIG. Is conduit 9
Is installed in the. The installation position is at the bottom of the cleaning chamber 2 and above the cleaning water tank 3.
As shown in (b) of FIG. 1, the filter box 30 is provided in the conduits 9, 9 and has an inlet hole 35 communicating with the conduit 9 on one side and an inlet hole 35 on the other side. Each outlet hole 36 is formed. The inlet hole 35 and the outlet hole 36 are separated by a partition wall 31 having a communication hole 34, the upstream side is a first chamber 32, the downstream side is a second chamber 33, and a cylindrical filter 44 is provided in the second chamber. It is supposed to be inserted.

In the lower part of the drawing of the second chamber 33, the pipe line 9 is provided.
An opening 37 is formed parallel to the opening 37, and a lid 40 for mounting a filter is screwed into the opening 37.
As shown in FIG. 2, the lid 40 includes a screw portion 41 that is screwed into a screw of the opening portion 37 of the filter box 30,
A flange portion 42, which comes into contact with the side surface of the filter box 30 when attached, and a grip portion 43 are roughly configured. A tubular filter 44 is attached to the tip of the screw portion 41. The tubular filter 44 is formed, for example, by bending a net or a punching board into a tubular shape. Therefore, the lid 40 is attached to the filter box 3
When screwed into the screw of the opening 37 of 0, the cylindrical filter 4
4 is inserted into the second chamber 33, and the tip end thereof is fitted into the step portion 38 of the partition wall 31, and the communication hole 34 formed in the partition wall 31.
Opens inside the cylindrical filter 44. On the other hand, the opening 37 of the filter box 30 is closed by the flange 42 via the seal 45.

Next, the operation of the above embodiment will be described. As shown in FIG. 1B, the lid 40 is screwed into the screw of the opening 37 of the filter box 30, and the cylindrical filter 44 is inserted and fixed in the second chamber 33. Tableware to be washed D
Is placed in the basket W and stored in the cleaning chamber 2. For example, although not shown in the figure, a cleaning time, a rinsing time, etc. are appropriately set and the start button is pressed. Then, the pump 10 for pumping the wash water is activated, the wash water is filtered from the wash water tank 3 by the second filter 12, and reaches the filter box 30 through the pipe line 9. The solid matter K is filtered from the first chamber 32 of the filter box 30 through the communication hole 34 to reach the cylindrical filter 44. Then, it goes out from the second chamber 33 to the conduit 9. Then, the tableware D that is sprayed from the upper and lower wash water spray blocks 5 and 6 toward the tableware D and is placed in the cleaning room 2
Is washed. At this time, the detergent in the detergent tank 23 is also supplied to the wash water tank 3 by the ejector 22. After cleaning for a predetermined time, the pump 10 for pressure-feeding cleaning water is stopped. Then, the rinsing pump 17 is activated and the rinsing water tank 4
The rinsing water is pressure-fed to the water injection blocks 7 and 8 by the pipe 16 and is sprayed on the tableware D. The rinse water sprayed on the tableware D is stored in the wash water tank 3 and is used for the next wash. When the rinsing is finished, the washing is finished by taking measures such as drying. Cylindrical filter 4 during repeated washing
Since food dregs and the like will also collect in 4, the lid 40 is removed from the opening 37 of the filter box 30, and the cylindrical filter 4
Clean 4 as appropriate.

If the user forgets to mount the tubular filter 44 and starts cleaning, the opening 37 of the filter box 30 is not closed, so that the cleaning water is discharged from the opening 37 and reaches the cleaning water jet blocks 5 and 6. do not do. Therefore, even if the cylindrical filter 44 is not attached, the wash water injection nozzle will not be clogged. Further, since the tableware D is not washed, the solid matter such as food adhering to the tableware D does not peel off and mix with clean water. Therefore, the wash water circulates through the wash water tank 3, the pump 10, the pipe line 9 and the like, but they do not become clogged. Further, according to the present embodiment, since the filter box 30 is provided above the cleaning water tank 3 or inside the cleaning chamber 2, the cleaning water discharged from the opening 37 of the filter box 30 is collected in the cleaning water tank 3. To be done. Further, according to the present embodiment, since the filter 44 has a tubular shape, the filtration area is larger than that of the flat filter, and it is not necessary to clean it frequently. In addition, according to the present embodiment, since the pipe 16 for pumping the rinse water is not provided with the filter box 30, it is obvious that the rinse can be performed regardless of the mounting of the filter. Further, according to the present embodiment, since the rinse water pipe 16 is not provided with the filter box 30, even if the user forgets to mount the filter 44 and cannot wash it with washing water, he can only rinse it. Therefore, even when the detergent is used manually, the detergent can be washed off and it is safe. It should be noted that even if washing is started without mounting the filter 44, the cleaning water is not sprayed from the cleaning water spraying blocks 5 and 6, so it may be noticed that the dishes are not well washed up and the mounting of the filter 44 is forgotten. it can.

In the above embodiment, the filter box 30 is used.
Is interposed in the conduit 9 at the bottom of the cleaning chamber 2 and above the cleaning water tank 3, but at the corner of the conduit 9, for example, at the position indicated by A or B in FIG. A filter can also be provided. When the filter box 30 is provided at the corner portion of the pipe line 9, there is an advantage that the filter box 30 is not necessary and can be directly inserted in the pipe line 9. If it is installed at position A,
There is an advantage that it is easy to operate, and when it is provided at the position B, there is an advantage that the wash water leaking from the opening for mounting the filter is collected in the wash water tank 3. An embodiment in which a filter 44 is provided at the corner portion of the pipe 9 is shown in FIG. Although the same members as those in the embodiment shown in FIG. 1 are designated by the same reference numerals and will not be described redundantly, according to the present embodiment, an opening 37 is formed outside the corner portion of the pipe line 9. The opening 37 is threaded. Therefore, the lid 40
When the threaded portion 41 of the pipe is screwed into the screw of the opening portion 37 of the pipe line 9, the tubular filter 44 is inserted into the pipe line 9, and its tip portion is linear with the inner wall 9a of the corner portion of the pipe line 9. To the projection 9b which is fixed to the inner wall of, for example, by welding. It is clear that the washing water is also filtered by this filter 44.

Another embodiment of the present invention will be described with reference to FIG. According to this embodiment, a part of the conduit 9 is bent in an arc shape, and the opening 50 is formed outside the bent part. A short tube 51 having a screw is fixed to the opening 50 by welding or the like, and a lid 52 is screwed to the short tube 51. A large through hole 5 is formed in the bottom 53 of the lid 52.
4 are formed. Filter 55 to be inserted in the conduit 9
Has a substantially disc shape according to the shape of the pipe line 9, a part of the circumferential portion thereof is fitted into the groove 56 of the inner wall of the pipe line 9, and the other end has a disc shape. A seal material 57 is provided.

Therefore, as shown in FIG.
When the filter body 55 is mounted through the opening 50 and then the lid body 52 is screwed into the short tube 51, the through hole 54 in the bottom 53 of the lid body 52 is closed by the sealing material 57. Therefore, it can be washed. However, if the user forgets to mount the filter 55 and starts cleaning, the cleaning water is discharged from the opening 50 and does not reach the cleaning water jet blocks 5 and 6 as in the above-described embodiment. Even if only the lid 51 is attached, the through hole 53 of the lid 52 is not blocked by the sealing material 57, so that the cleaning water is discharged from the opening 50 through the through hole 54 of the lid 52 to the outside. According to this embodiment, since the opening 50 is formed outside the part where the pipe 9 is bent in an arc shape,
When the opening 50 is not blocked, the cleaning water is efficiently supplied to the pipeline 9.
Emitted from. It is obvious that the filter 55 can be easily mounted if the cross-section of the pipe line 9 where the filter 55 is mounted is slightly modified into a square or the like.

In the illustrated embodiment described above, filters 44,
Although 55 is provided only in the pipe line 9 for circulating the wash water, it can be provided in the pipe 16 for the rinse water by the same means. If the rinse water pipe 16 is also provided, even if a solid substance is carelessly mixed in the rinse water, the water spray blocks 7 and 8 of the rinse water are not clogged. Therefore, the pipe line also includes the pipe 16 for such rinse water.

[0015]

As described above, according to the present invention, an opening for attaching a filter is formed at an appropriate position of a conduit for guiding the cleaning water to the cleaning water jet nozzle, and the opening is provided with a filter member. If you do so, it will be blocked, so if you install a filter you can clean without problems, but if you do not install a filter you cannot do it. Therefore, troubles such as clogging of the wash water injection nozzle do not occur.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, in which (a) is the whole,
And (b) is an enlarged sectional view showing an embodiment of the filter mounting structure.

FIG. 2 is a perspective view showing an embodiment of a lid and a filter.

FIG. 3 is a sectional view showing another embodiment of the filter mounting structure of the present invention.

FIG. 4 is an exploded perspective view showing still another embodiment of the filter mounting structure of the present invention.

FIG. 5 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 2 Wash room 3 Wash water tank 5, 6 Wash water jet block 7, 8 Rinse water jet block 9 Pipeline 30 Filter box 40, 52 Lid 44, 55 Filter

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 55-99236 (JP, A) JP 3-68325 (JP, A) JP 62-201130 (JP, A) Actual development 64- 33964 (JP, U) Actual opening Sho 50-39062 (JP, U) Actual opening Sho 50-44474 (JP, U) Actual opening Sho 52-167267 (JP, U) Actual opening Sho 60-36855 (JP, U) Actual flat 3-49758 (JP, U) Actual flat 1-128751 (JP, U) Actual flat 2-94769 (JP, U) Actual public 60-20326 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A washing water tank and a washing water injection nozzle are provided at least, which are connected by a pipe line, and the washing water in the washing water tank is jetted from the washing water injection nozzle to wash dishes. The dishwasher according to claim 1, wherein an opening for mounting a filter is formed in the pipe line, and the opening is closed when the filter member is mounted.