JPH07313432A - Tableware washing machine - Google Patents

Abstract

PURPOSE:To uniformly wash table wares to be washed by providing either one of a washing nozzle and a rinsing with a interlocking body which projects so as to be abutted on the other nozzle as the former nozzle rotates and synchronously rotating the washing nozzle and rinsing nozzle within such as angle that the respective nozzle openings are avoided dwring washing operation and rinsing operation. CONSTITUTION:An upper rinsing nozzle 5 has plural rinsing nozzle openings 5A and an auxiliary rinsing nozzle opening 5B positioned on the opposite side between rinsing nozzle openings 5A positioned at the base part of the upper rinsing nozzle 5. The auxiliary rinsing nozzle opening 5B is composed of a nozzle chip with a wide jet angle and the upper rinsing nozzle 5 at a position symmetrical with the auxiliary rinsing nozzle opening 5B is provided with the rod type interlocking body 5C which is raised upward to project. When the upper rinsing nozzle 4 begins to rotate, the upper washing nozzle 4 abuts on the interlocking body 5C and the upper nozzle 5 is pressed by the upper washing nozzle 4, so that the upper washing nozzle 4 and upper rinsing nozzle 5 rotate synchronously while keeping a specific mutual angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher in which a washing nozzle and a rinsing nozzle, which are concentrically rotatable, are arranged in a washing chamber to perform a washing operation and a rinsing operation of an object to be washed.

[0002]

2. Description of the Related Art Conventionally, dishwashers for washing and rinsing objects to be washed such as dishes installed by freely arranging a washing nozzle and a rinsing nozzle above and below a washing chamber are known, for example. It is disclosed in JP-B-61-35175 or JP-B-61-36209.

First, the cleaning operation of the object to be cleaned is performed by the cleaning water sprayed downward from the upper cleaning nozzle provided in the upper part of the cleaning chamber and the cleaning water sprayed upward from the lower cleaning nozzle provided in the lower part. After that, it also includes rinse water sprayed downward from the upper rinse nozzle also provided in the upper part of the cleaning chamber and detergent attached to the object to be cleaned by the rinse water sprayed upward from the lower rinse nozzle provided in the lower part. The rinse operation of flushing the wash water is performed to complete the operation of one cycle.

Further, in this type of dishwasher, during the cleaning operation, the dirty cleaning water that has passed through the object to be cleaned from the lower cleaning nozzle and adhered to the ceiling of the cleaning chamber or the cleaning water that has adhered to the upper cleaning nozzle is rinsed. Since the solution is dripped onto the article to be cleaned after completion of the procedure, there is a problem in that the detergent remains attached to the article to be cleaned and good rinsing cannot be performed, which is unfavorable in terms of sanitation. Therefore, for example, Japanese Utility Model Publication No. 5-20284 (A47L15
/ 42), the upper rinse nozzle was provided with a second rinse injection port (hereinafter, referred to as an auxiliary rinse nozzle port) for injecting rinse water upward, and adhered to the top plate and the upper cleaning nozzle during the rinse operation. I try to wash out the wash water.

[0005]

However, in such a dishwasher, the nozzle that is not operating (stops rotation) (upper and lower cleaning nozzles or upper and lower rinse nozzles) operates during the washing operation and the rinsing operation. The jet water from the nozzle openings of the rotating (rotating) nozzles (upper and lower rinse nozzles or upper and lower cleaning nozzles) is blocked.

Therefore, it becomes impossible to efficiently apply the cleaning water or the rinsing water to the object to be cleaned installed in the cleaning chamber of the blocked portion, and the cleaning effect or the rinsing effect of the portion is impaired. There is a problem that it is impossible to realize uniform cleaning and rinsing of the object to be cleaned. Further, by the upper washing nozzle that has stopped rotating during the rinse operation, because the result is that the rinse water from the auxiliary rinse nozzle port of the upper rinse nozzle is also blocked, after the rinse operation,
There is also a problem that the cleaning water adhering to the ceiling of the shielded portion drops onto the object to be cleaned.

The present invention has been made to solve the above-mentioned conventional technical problems, and an object of the present invention is to provide a dishwasher capable of uniformly cleaning an object to be cleaned. Another object of the present invention is to provide a dishwasher capable of effectively preventing residual detergent after rinsing operation in addition to the above.

[0008]

A dishwasher according to a first aspect of the present invention is provided in a washing chamber, and is provided with a washing nozzle and a rinsing nozzle which are concentrically rotatable, and a washing nozzle, and sprays washing water. A plurality of cleaning nozzle ports to be provided, a plurality of rinse nozzles provided in the rinse nozzle, and a plurality of rinse nozzle ports for injecting rinse water, and provided in at least one of the cleaning nozzle and the rinse nozzle, and the other nozzle in association with the rotation of the nozzle. The interlocking body protrudes so as to come into contact with the interlocking body, and the interlocking body rotates the washing nozzle and the rinsing nozzle in synchronization with each other during the washing operation and the rinsing operation at an angle that avoids the nozzle openings.

The dishwasher according to the second aspect of the present invention includes a rotatable upper washing nozzle having a plurality of washing nozzle ports provided in the upper portion of the washing chamber and jetting washing water downward, and the upper washing nozzle. The upper rinsing nozzle that rotates concentrically with the upper rinsing nozzle in the lower part of the and has a plurality of rinsing nozzle ports that spray rinsing water downward, and a plurality of rinsing nozzles that are provided in the lower part of the cleaning chamber and spray rinsing water upward A rotatable lower cleaning nozzle having a cleaning nozzle port, and a lower rinsing nozzle having a plurality of rinsing nozzle ports that rotate concentrically with the lower cleaning nozzle above the lower cleaning nozzle and spray rinsing water upward. A small number of auxiliary rinse nozzles are provided on the upper rinse nozzle than the rinse nozzle port, the auxiliary rinse nozzle port sprays the rinse water upward, the cleaning tank for storing the cleaning water, and the upper and lower cleaning nozzles from this cleaning tank. A washing pump for feeding the washing water to the above, a booster tank for storing the rinsing water, a rinsing pump for feeding rinsing water having a temperature higher than that of the rinsing water to the upper and lower rinsing nozzles, an upper washing nozzle and an upper rinsing nozzle. At least one of the rinsing nozzles is provided with an interlocking body that protrudes so as to come into contact with the other nozzle as the nozzle rotates, and an article to be cleaned is installed between the upper and lower nozzles. In addition to performing the cleaning operation and the rinsing operation, the interlocking body rotates the upper cleaning nozzle and the upper rinsing nozzle in synchronization with each other at an angle that avoids the nozzle openings during the cleaning operation and the rinsing operation.

[0010]

According to the dishwasher of the present invention, at least one of the washing nozzle and the rinsing nozzle is provided with the interlocking body protruding so as to come into contact with the other nozzle as the nozzle rotates, and by this interlocking body, During cleaning operation and rinsing operation, the cleaning nozzle and rinsing nozzle are rotated synchronously at an angle that avoids each nozzle opening, so that the nozzle that is not operating operates during cleaning operation and rinsing operation as before. It is possible to prevent the water jet from the nozzle opening of the running nozzle from being blocked. Therefore,
The object to be cleaned can be efficiently and uniformly cleaned and rinsed.

In particular, according to the dishwasher of the invention of claim 2, in addition to this, during the rinsing operation, the upper washing nozzle does not block the rinse water from the auxiliary rinse nozzle port of the upper rinse nozzle. It becomes possible to reliably wash off the cleaning water that has adhered to the ceiling of the cleaning room. Therefore, it becomes possible to eliminate the residual adhesion of the cleaning water to the object to be cleaned after the rinsing operation, maintain a good rinsing effect, and improve hygiene.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a vertical sectional side view of a dishwasher 1 of the present invention, FIG. 2 is a partially cutaway enlarged side view of an upper washing nozzle 4 and an upper rinsing nozzle 5, and FIG. 3 is a perspective view of the upper rinsing nozzle 5. In each drawing, a washing chamber 3 is defined within the main body case 2 of the dishwasher 1, and the front surface of the washing chamber 3 is opened and closed by a door (not shown). An upper cleaning nozzle 4 as a cleaning nozzle having a plurality of cleaning nozzle openings 4A for jetting cleaning water downward is rotatably arranged at the upper part of the cleaning chamber 3 and slightly below the upper cleaning nozzle 4. Top cleaning nozzle 4
An upper rinse nozzle 5 is disposed as a rinse nozzle that rotates concentrically with the above.

The upper rinsing nozzle 5 is located on the opposite side between the plurality of rinsing nozzle openings 5A for jetting rinsing water downward and the rinsing nozzle openings 5A, 5A located at the base of the upper rinsing nozzle 5. It has a single auxiliary rinse nozzle port 5B that sprays water upward. The auxiliary rinsing nozzle port 5B is composed of a nozzle tip having a wide spray angle, and the upper rinsing nozzle 5 at a position symmetrical to the auxiliary rinsing nozzle port 5B has a rod-shaped interlocking member 5C that stands up and projects upward. Is provided.

Further, a lower cleaning nozzle 6 as a cleaning nozzle having a plurality of cleaning nozzle ports (not shown) for jetting cleaning water upward is rotatably arranged in the lower part of the cleaning chamber 3, and this lower cleaning is performed. A lower rinsing nozzle 7 as a rinsing nozzle having a plurality of rinsing nozzle ports (not shown) for injecting rinsing water upward is disposed slightly above the nozzle 6 so as to be rotatable concentrically with the lower cleaning nozzle 6. There is.

On the other hand, a cleaning tank 12 whose upper surface is covered with a filter (not shown) is defined in the lower portion of the main body case 2 below the cleaning chamber 3, and an overflow pipe 13 is erected in the cleaning tank 12. The water level of the cleaning tank 12 is regulated to a predetermined water level. On the other hand, between the upper and lower cleaning nozzles 4 and 6 and the cleaning tank 12, cleaning water of about + 60 ° C. mixed with the detergent stored in the cleaning tank 12 is circulated to the upper and lower cleaning nozzles 4 and 6 through the cleaning pipe 18. A cleaning pump 14 for rinsing is provided, and between the upper and lower rinsing nozzles 5 and 7 and the booster tank 15 provided in parallel with the main body case 2, rinsing water of about + 80 ° C. stored in the booster tank 15 is rinsed. A rinsing pump 16 for feeding the upper and lower rinsing nozzles 5 and 7 via the above is provided. The booster tank 15 is also provided with an overflow pipe 21 which regulates the predetermined water level, and a water supply valve 22 which controls hot water supply from a water heater (not shown) to the booster tank 15.

Next, the upper cleaning nozzle 4 will be described with reference to FIG.
The detailed structure of the base of the upper rinse nozzle 5 will be described. still,
Since the lower cleaning nozzle 6 and the lower rinsing nozzle 7 have basically the same structure, the description thereof will be omitted. A support 24, which serves as a nozzle bearing device, is provided below the ceiling 2A of the main body case 2. The support 24 is formed by coaxially connecting an inner pipe 26 and an outer pipe 27, the outer pipe 27 is connected to the cleaning pipe 18, and the inner pipe 26 is connected to the rinse pipe 19.

A washing nozzle mounting portion 29 is formed in the vicinity of the outer pipe opening portion 28 of the outer pipe 27, and the upper washing nozzle 4 is rotatably provided on the horizontal surface on the washing nozzle mounting portion 29. . At the lower end of the inner pipe 26, a collar 31,
An inner pipe connector 34 having an inner pipe opening 32 and an end plug 33 is attached, and the upper rinse nozzle 5 is rotatably mounted on the inner pipe connector 34 on a horizontal plane. In this state, the interlocking body 5C of the upper rinse nozzle 5 extends to the upper side of the upper upper cleaning nozzle 4.

Next, the operation of the dishwasher 1 of the present invention having the above construction will be described with reference to FIGS. 4 and 5. First, the cleaning chamber 3 between the upper and lower rinsing nozzles 5, 7 (upper and lower cleaning nozzles 4, 6)
A not-shown object to be cleaned made up of dishes such as dishes is stored inside,
Start washing operation. In this cleaning operation, the cleaning water stored in the cleaning tank 12 is circulated from the cleaning pipe 18 to the upper and lower cleaning nozzles 4 and 6 by the operation of the cleaning pump 14.

The circulated cleaning water is sprayed downward from the cleaning nozzle port 4A of the upper cleaning nozzle 4 and upward from the cleaning nozzle port of the lower cleaning nozzle 6 to be sprayed on the object to be cleaned. As a result, the upper and lower cleaning nozzles 4 and 6 rotate counterclockwise as viewed from above as shown in FIG. The sprayed cleaning water falls through the filter (not shown) into the cleaning tank 12, and again the upper and lower cleaning nozzles 4,
It is cycled to 6.

During this cleaning operation, the rinse water is not supplied to the upper rinse nozzle 5 and therefore stops without generating a propulsive force. However, when the upper rinse nozzle 4 starts rotating as described above. Eventually, the upper cleaning nozzle 4 comes into contact with the interlocking member 5C of the upper rinse nozzle 5. As a result, the upper rinse nozzle 5 is pushed by the upper cleaning nozzle 4,
As a result, the upper cleaning nozzle 4 and the upper rinsing nozzle 5 form a predetermined angle with respect to each other (the phase is shifted) and rotate in synchronization with each other (FIG. 4).

The angles formed by the two nozzles 4, 5 are set so that the upper rinsing nozzle 5 is at a position avoiding the cleaning nozzle ports 4A of the upper cleaning nozzle 4 as shown in FIG. As a result, the upper rinse nozzle 5 not operating during the cleaning operation
However, it is possible to prevent the washing water from the washing nozzle port 4A of the upper washing nozzle 4 from being blocked, and it is possible to wash the object to be washed efficiently and uniformly.

When the cleaning operation is executed for 90 seconds, for example, the cleaning pump 14 is stopped to stop the cleaning operation, and subsequently the rinse operation for 10 seconds is started. In this rinsing operation, the rinsing pump 16 operates to feed the rinsing water in the booster tank 15 to the upper and lower rinsing nozzles 5 and 7 through the rinsing pipe 19. The fed rinse water is sprayed downward from the rinse nozzle port 5A of the upper rinse nozzle 5 and is sprayed upward from the rinse nozzle port of the lower rinse nozzle 7 and sprayed onto the object to be cleaned. And a part of the upper and lower rinse nozzles 5,
7, the upper and lower rinsing nozzles 5 and 7 rotate counterclockwise when viewed from above as shown in FIG. Similarly, the sprayed rinse water drops into the cleaning tank 12 through a filter (not shown).

Further, a part of the rinse water fed to the upper rinse nozzle 5 is jetted upward from the auxiliary rinse nozzle port 5B at a wide angle. The upward rinse water rinses away the cleaning water attached to the ceiling 2A of the main body case 2 (cleaning chamber 3) in the cleaning operation. Further, during this rinsing operation, the washing water is not circulated in the upper washing nozzle 4 and therefore stops without generating the propulsion force, but when the upper rinsing nozzle 5 starts to rotate, the state of FIG. After a while, the state shown in FIG. 5 is reached, and the interlocking member 5C of the upper rinse nozzle 5 contacts the upper cleaning nozzle 4. In the process of shifting from the state of FIG. 4 to the state of FIG. 5, the auxiliary rinse nozzle port 5B of the upper rinse nozzle 5 moves below the upper cleaning nozzle 4, so that the cleaning water attached to the upper cleaning nozzle 4 is also washed away.

After the state shown in FIG. 5, the upper cleaning nozzle 4 is pushed by the upper rinsing nozzle 5 contrary to the above, and as a result, the upper cleaning nozzle 4 and the upper rinsing nozzle 5 are mutually connected. A predetermined angle is formed (the phase is deviated) and they rotate synchronously (FIG. 5). The angle formed by both nozzles 4 and 5 is the same as that of the upper cleaning nozzle 4 shown in FIG.
As shown in FIG. As a result, it is possible to prevent the upper washing nozzle 4 that is not operating during the rinse operation from blocking the rinse water from the auxiliary rinse nozzle port 5B of the upper rinse nozzle 5, and the main body case 2
The cleaning water adhering to the ceiling 2A of the (cleaning chamber 3) can be reliably washed off. Therefore, it is possible to effectively prevent the inconvenience that the cleaning water drops on the object to be cleaned after the rinsing operation.

In the embodiment, the interlocking member 5C is provided upright on the upper rinsing nozzle 5. However, conversely, an interlocking member protruding downward and contacting the upper rinsing nozzle 5 may be provided on the upper cleaning nozzle 4. However, even in that case, the interlocking body is connected to each of the nozzle openings 4A and 5A.
The upper cleaning nozzle 4 and the upper rinsing nozzle 5 are synchronously rotated at an angle avoiding A and 5B. Further, not only the upper nozzles 4 and 5, but also the lower rinse nozzle 7 or the lower cleaning nozzle 6 located below is provided with an interlocking body to clean
The rinsing effect may be made uniform.

[0026]

As described above in detail, according to the present invention, at least one of the cleaning nozzle and the rinsing nozzle,
An interlocking body is provided so as to come into contact with the other nozzle as the nozzle rotates, and the interlocking body causes the cleaning nozzle and the rinsing nozzle to rotate synchronously at an angle that avoids each nozzle opening during the cleaning operation and the rinsing operation. As a result, it is possible to prevent the non-operating nozzle from blocking the water jet from the nozzle port of the operating nozzle during the cleaning operation and the rinsing operation as in the conventional case. Therefore, it is possible to efficiently and uniformly wash and wash the object to be washed.

In particular, according to the invention of claim 2, during the above-mentioned additional rinsing operation, the rinse water from the auxiliary rinse nozzle port of the upper rinse nozzle is not blocked by the upper rinse nozzle. It is possible to reliably wash off the cleaning water attached to the. Therefore, the residual adhesion of the cleaning water to the object to be cleaned after the rinse operation is eliminated,
It is possible to maintain a good rinsing effect and improve hygiene.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a dishwasher of the present invention.

FIG. 2 is a partially cutaway enlarged side view of the upper washing nozzle and the upper rinsing nozzle of the dishwasher of the present invention.

FIG. 3 is a perspective view of an upper rinse nozzle of the dishwasher of the present invention.

FIG. 4 is a diagram for explaining the operation of the upper washing nozzle and the upper rinsing nozzle in the washing operation of the dishwasher of the present invention.

FIG. 5 is a diagram for explaining the operation of the upper washing nozzle and the upper rinsing nozzle in the rinsing operation of the dishwasher of the present invention.

[Explanation of symbols]

 1 Dishwasher 2 Body case 2A Ceiling 3 Washing room 4 Top washing nozzle 4A Washing nozzle mouth 5 Top rinse nozzle 5A Rinse nozzle mouth 5B Auxiliary rinse nozzle mouth 5C Interlocking body 6 Bottom wash nozzle 7 Bottom rinse nozzle

Claims (2)

[Claims] 1. A washing nozzle and a rinsing nozzle which are provided in a washing chamber and are concentrically rotatable, respectively, a plurality of washing nozzle ports provided in the washing nozzle and for injecting washing water, and the rinsing nozzle. A plurality of rinsing nozzle ports for injecting rinsing water, and an interlocking member provided in at least one of the cleaning nozzle and the rinsing nozzle and protruding so as to come into contact with the other nozzle as the nozzle rotates, The dishwasher, wherein the interlocking body rotates the washing nozzle and the rinsing nozzle in synchronization with each other at an angle avoiding the nozzle openings during the washing operation and the rinsing operation. 2. A rotatable upper cleaning nozzle having a plurality of cleaning nozzle ports for spraying cleaning water downward, which is provided in an upper part of the cleaning chamber, and below the upper cleaning nozzle and concentrically with the upper cleaning nozzle. A rotatable lower wash having an upper rinse nozzle that rotates and has a plurality of rinse nozzle ports that jet downward rinse water, and a plurality of wash nozzle ports that are provided at the bottom of the cleaning chamber and that jets wash water upward. Nozzle, and a lower rinse nozzle that rotates concentrically with the lower wash nozzle above the lower wash nozzle, and has a plurality of rinse nozzle ports that spray rinse water upward, and the upper rinse nozzle from the rinse nozzle port. A small number of auxiliary rinse nozzles for injecting rinse water upward, a cleaning tank for storing cleaning water, and the cleaning water is fed from the cleaning tank to the upper and lower cleaning nozzles. A washing pump, a booster tank for storing rinsing water, a rinsing pump for feeding rinsing water having a temperature higher than that of the rinsing water from the booster tank to the upper and lower rinsing nozzles, and at least the upper cleaning nozzle and the upper rinsing nozzle. An interlocking member provided on one nozzle and protruding so as to come into contact with the other nozzle as the nozzle rotates, an object to be cleaned is installed between the upper and lower nozzles, and each nozzle performs a cleaning operation and a rinsing operation. In addition, the interlocking body rotates the upper washing nozzle and the upper rinsing nozzle in synchronization with each other at an angle that avoids the nozzle openings during the washing operation and the rinsing operation.