JP2000225087A - Tableware washer-drier and detergent housing vessel used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively wash tableware without the possibility of falling down, flowing out and solidifying a detergent before starting to wash the tableware. SOLUTION: A tableware basket 10 is housed in a washing tank 2, and wash water is injected from an injection nozzle 4 toward tableware 10a housed in the tableware basket 10 to wash the tableware 10a. A detergent housing vessel 20 is detachably or integrally installed in the almost same height as or a part higher than a wash water supply port 16 arranged in an inner wall on the inner wall of the washing tank 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher / dryer and a detergent container used for the same.

[0002]

2. Description of the Related Art In a dishwasher, when the temperature of washing water remaining in a washing tank is lower than a predetermined temperature, or
If the temperature of the hot water (washing water) introduced into the washing tank is lower than a predetermined temperature, the hot water is discharged out of the machine by a drain pump, and after washing water of a predetermined temperature is introduced into the washing tank, the water is discharged from the spray nozzle. There is one that employs a so-called pre-drainage method in which washing water is sprayed to start washing of dishes and the like (Japanese Patent Laid-Open No. Hei 1-1-1).
192326).

[0003] In the above dishwasher / dryer,
If the detergent is put in the washing tank in advance, the detergent is discharged together with the washing water at the time of pre-draining, so that it is not only uneconomical but also to wash dishes and the like without the detergent. For this reason, the detergent must be introduced after the washing water at a predetermined temperature is introduced into the washing tank.

FIGS. 8 and 9 show an example of such a pre-draining dishwasher / dryer. When washing dishes and the like with this dish washer / dryer, the door 9 is opened, the dish basket 10 is pulled out, the dish 10a is stored, and the dish basket 1 is stored again.
0 is stored in the washing tank 2. Next, a powdery detergent is charged into the concave detergent storage section 36 provided on the cleaning tank 2 side of the door 9, and the door 9 is closed and locked. Then, a cleaning course is selected by an operation unit (not shown), and the operation is started by pressing a start button.

When the operation is started, first, the water supply valve 14 is opened, and cleaning water (warm water) is supplied into the cleaning tank 2. However, at the beginning of the water supply, the temperature of the washing water is low and often lower than the predetermined temperature. In this case, the drainage pump (not shown) is driven to discharge the washing water outside the machine. When the temperature of the washing water reaches a predetermined temperature, the drain pump is stopped, and the washing water pump 5 is driven to pump the washing water to the injection nozzle 4,
Inject. As a result, the detergent contained in the detergent accommodating portion 36 is melted by the washing water jetted from the jet nozzle 4, falls, and dissolves in the washing water (prior art 1).

Japanese Utility Model Registration No. 2542215 discloses a box-shaped detergent in which a part of an upper part and a front part is opened and a detergent outlet 38 is provided at a lower part as shown in FIG. The container 37 is detachably or integrally attached to the tableware basket 10 and the detergent is introduced. Then, there is described a dishwasher in which the detergent melted by the washing water ejected from the ejection nozzle and flowed into the detergent container 37 at the start of operation is caused to flow out from the outflow opening 38 and mixed with the washing water. (Prior art 2).

[0007]

In the prior art 1, since the detergent is simply placed in the concave detergent storage portion 36 provided on the door 9, the detergent is stored in the cleaning tank 2 from the detergent storage portion 36 when the door 9 is closed. In some cases, the water may be spilled and discharged out of the machine together with the washing water at the time of pre-draining, and there is a possibility that the dishes and the like are washed without a detergent or with a very small amount of detergent.

In the prior art 2, since the detergent container 37 is attached to the dish basket 10, it is located below the water supply port of the washing water. For this reason, the detergent in the detergent container 37 flows out or solidifies due to the scattering of the washing water at the time of water supply, and the detergent may not sufficiently dissolve in the washing water when washing dishes or the like, and the washing performance may be deteriorated. May come.

The present invention has been made in order to solve the above-mentioned problems, and there is no danger of detergent spilling out, flowing out and solidifying before starting washing of tableware and the like. It is an object of the present invention to obtain a dishwasher and a dishwasher which can be used for washing.

[0010]

According to the present invention, a dish basket is housed in a washing tank, and washing water is sprayed from a spray nozzle toward the dish etc. stored in the dish basket to wash the dish. In the dishwasher / dryer, a detergent container is detachably or integrally attached to the inner wall of the washing tank at substantially the same height as or above the water supply port of the washing water provided on the inner wall. Further, the above-mentioned detergent container was attached to a water supply port of the cleaning water protruding into the cleaning tank.

Further, the detergent container used in the dishwasher according to the present invention has a bottom portion inclined to both sides with a substantially central portion as an apex, side plates provided on both sides in the width direction of the bottom portion, and a longitudinal portion of the bottom portion. Orthogonal to the side plate near both ends in the direction,
In addition, there is provided a detergent accommodating portion comprising a detergent outflow preventing plate provided upright with a detergent outflow portion interposed between the side plates, and an attaching portion for attaching to the washing tank directly or via a member.
In addition, the above-mentioned mounting portion is also used as a cover for a water supply port of the cleaning water protruding into the cleaning tank.

[0012]

FIG. 1 is a longitudinal sectional view of a dishwasher according to the present invention. In the figure, 1
Is the main body of the dishwasher, and 2 is the main body with an open front.
An opening 3 is provided at the bottom of the washing tank installed therein, and an injection nozzle 4 having a plurality of injection ports is rotatably installed above the bottom. Reference numeral 5 denotes a washing water pump installed between the main body 1 and the bottom of the washing tank 2 for pumping washing water to an injection nozzle 4 driven by a motor 6. Connected to the opening 3 of
The discharge port is connected to the injection nozzle 4 via a water supply pipe 8.

Reference numeral 9 denotes a door which is attached to the front opening of the washing tank 2 so as to be openable and closable, 10 denotes a tableware basket which is housed in the washing tank 2 so as to be able to be taken in and out, and 11 denotes a heater installed below the spray nozzle 4. is there. Reference numeral 12 denotes a filter which is removably attached to the opening 3 of the washing tank 2 and collects residues washed off from dishes and the like, and 13 denotes an operation unit provided above the door 9. Numeral 20 denotes a detergent container made of, for example, a synthetic resin.
It is attached detachably.

The detergent container 20 is shown in FIGS.
As shown in FIG. 2 (a cross-sectional view taken along the line AA in FIG. 2), a substantially rectangular bottom portion 22 is formed with a substantially central portion as an apex and inclined downward toward both sides. A substantially rectangular shaped detergent outflow prevention plate 24a, 24b which is provided on the upper surface near the both ends in the longitudinal direction of the side wall 23a, 23b and the bottom portion 22 at right angles to the both side walls 23a, 23b and has a central portion protruding inward. Form a detergent accommodating portion 21. A gap g is formed between both end portions of the detergent outflow preventing plates 24a, 24b and the side walls 23a, 23b to form a detergent outflow portion 25 through which the detergent flows out. Have been.
Reference numeral 26 denotes a mounting portion having a locking portion 27 and provided on the lower surface of the bottom portion 22 and serving also as a water supply port cover detachably mounted on the water supply port 16.

FIG. 4 shows an example of mounting the detergent container 20 having the above-described structure to the water supply port. In addition, the detergent storage container 20 in FIG. 4 is shown by a BB cross section in FIG. The water supply valve 14 has its water supply port 16 protruding into the cleaning tank 2 from an opening provided in the peripheral wall of the cleaning tank 2, and a sealing member 15.
And is fixed to the outer surface of the peripheral wall of the cleaning tank 2 via the fixing member 17 screwed into the water supply port 16 from the inside of the cleaning tank 2.

Reference numeral 18 denotes an engaging groove provided on the outer periphery of the fixing member 17, which is detachably attached to the fixing member 17 by engaging a locking portion 27 of a mounting portion 26 of the detergent container 20 with the engaging groove 18. Attached to. Thereby, the mounting portion 26 covers the front surface of the water supply port 16, and the detergent accommodating portion 21 is held above the water supply port 16. Reference numeral 19 denotes a hot water supply pipe having one end connected to the water supply valve 14 and the other end connected to a water heater (not shown). The means for attaching the water supply valve 14 to the cleaning tank 2 and the means for attaching the detergent storage container 20 to the water supply port 16 are not limited to the above, and can be changed as appropriate.

Next, the operation of the dishwasher provided with the above-mentioned washing container will be described. (1) When cleaning dishes, etc., open the door 9,
The tableware basket 10 is pulled out, the tableware 10a is stored, and the tableware 10 is stored in the washing tank 2 again. Also, for example, an appropriate amount of powdered detergent is put into the detergent container 20, and the door 9 is closed and locked.

(2) Next, a cleaning course is set by the operation unit 13, the start button is turned on, the water supply valve 14 is opened, and hot water (cleaning water) is supplied from the water supply port 16 into the cleaning tank 2. At this time, the front face of the water supply port 16 is
Since the washing water is covered by the mounting portion 26, the washing water is guided downward and does not scatter around. The drain valve is opened to drain the washing water until the washing water reaches a predetermined temperature (or a predetermined time).
Close the drain valve.

(3) As a result, washing water is stored in the washing tank 2, and when a predetermined amount of water is reached, the water supply valve 14 is closed and the heater 11 is energized to raise the washing water to the washing temperature. Is done. The predetermined temperature of the cleaning water supplied from the water heater is generally set lower than the cleaning temperature, and the cleaning water at the predetermined temperature stored in the cleaning tank 2 is further cleaned by the heater 11. Heated until.

(4) Then, the motor 6 is energized to drive the washing water pump 5 to send the washing water in the washing tank 2 from the water supply pipe 8 to the spray nozzle 4 under pressure. The spray nozzle 4 is rotated by the reaction force of the washing water sprayed from the spray port, while rotating the tableware 10a.
The washing water is evenly sprayed toward, and the washing process of the tableware 10a and the like is started.

(5) At this time, the washing water injected from the injection nozzle 4 flows into the detergent container 20 from above, and melts the detergent in the detergent container 21. This melt is in the bottom 2
2 and gradually flows along the inclined surface, and the detergent outflow prevention plate 24
The detergent flows out from the detergent outlets 25 provided on both sides of the nozzles a and 24b, dissolves in the washing water, and eventually all the detergent flows out.

(6) The washing water injected from the washing water nozzle 4 into the washing tank 2 is mixed with a detergent and stored in the washing tank 4 again. And repeats this circulation. During this time, the residue contained in the washing water is collected by the filter 12.

(7) When a predetermined time has elapsed, the power supply to the cleaning water pump 5 and the heater 11 is stopped, and then the drain valve is opened, and the cleaning water (dirty water) in the cleaning tank 11 is externally discharged by the drain pump. Is discharged to (8) When all the drainage is completed, the drain valve is closed and the water supply valve 14 is opened to supply the cleaning water into the cleaning tank 2. Thereafter, the rinsing step of the tableware 10a in the tableware basket 10 is started by substantially the same operation as the above-described washing step, and when the rinsing for a predetermined time is completed, drainage is performed again. This rinsing and draining is repeated several times. It should be noted that the detergent in the detergent storage container 20 is all melted out during the cleaning process and flows out, and the detergent is not present in the detergent storage portion 21 during the rinsing process. There is no mixing.

(9) When the rinsing process has been completed a predetermined number of times, the heater 11 is closed with the water supply valve 14 and the drain valve closed.
Then, power is supplied to a blower (not shown), and the blower is driven to blow air into the washing tank 2 from an air inlet (not shown). This air is heated by the heater 11 to become hot air, and the drying process for the entire area of the tableware 10a and the washing tank 2 is started. After a lapse of a predetermined time, the power supply to the heater 11 and the supply air is stopped, and the drying process is terminated. By this, lacquerware etc. 10
All of the washing and drying steps of a are completed.

In the dishwasher / dryer according to the present embodiment configured as described above, since the detergent container 20 is provided as shown in FIGS. 2 to 4, the temperature of the supplied washing water is equal to or lower than a predetermined temperature. During the initial drainage of the detergent does not flow out,
Until the cleaning process is started, the cleaning agent is held in the detergent container 20.

A detergent container 20 configured to allow the washing water to flow in from above is provided above the washing water supply port 16, and the mounting portion 26 covers the front surface of the washing water port 16 so as to cover the washing water. So that it does not scatter
When water is supplied, washing water does not flow into the detergent container 20. For this reason, there is no possibility that the detergent is solidified, and all of the supplied detergent can be discharged.

Further, the bottom portion 22 of the detergent container 20 is formed as an inclined surface, and the detergent outflow portions 25 are provided on both sides of the detergent outflow prevention plates 24a and 24b provided near both ends thereof. All of the appropriate amount of the detergent that has been melted by the jetted washing water flows out, dissolves in the washing water, and can efficiently wash the tableware 10a and the like. In addition, since all the detergent in the detergent storage container 20 flows out in the washing step, there is no possibility that washing water is mixed in the rinsing step.

[Second Embodiment] FIG. 5 is a perspective view of a second embodiment of the present invention, showing an example in which a dishwasher / dryer is incorporated in a sink. In the figure, reference numeral 30 denotes a sink, which comprises a counter 31 having a sink 32 and provided on the upper surface, and a cabinet 33 and the like provided below the counter 31 and supporting the counter 31 and provided with a storage unit and the like. . 35 is a front opening 34 on the side of the sink 32.
A dish washer / dryer installed in the cabinet 33. A door 9 is provided on the front surface of the front surface, which is attached to a hinge at the lower end so as to be freely opened and closed.

The structure and function of the dishwasher / dryer 35 are almost the same as those of the dishwasher / dryer of the first embodiment.
A dish basket 10 is housed in the washing tank 2 so as to be able to be taken in and out, and a detergent container 20 is detachably attached to a water supply port 16 of a water supply valve 14 provided on a peripheral wall.

Dishwasher / dryer 35 in the present embodiment
The operation and effect are the same as those in the first embodiment. However, since they are incorporated in the sink 30, there is no need to particularly provide an installation place for the dish washer / dryer 35, and it is convenient to take in and out tableware and the like. .

FIG. 6 is a perspective view showing another example of the present embodiment, and FIG. 7 is a longitudinal sectional view showing a state where the door of the dishwasher-dryer portion of FIG. 6 is omitted. Note that Embodiment 1 and FIG.
The same reference numerals are given to the same parts as in the example, and the description is omitted. In this example, the upper surface of the washing tank 2 of the dishwasher 35 is opened to provide an openable door 6, and an opening 34a is formed in the counter 31 on the side of the sink 32 of the sink 30.
And the upper part of the dishwasher 35 installed in the cabinet 33 faces the opening 34a.

Reference numeral 8 denotes a water supply pipe connected to a discharge port of the washing water pump 5, and is connected to a water supply unit 27 provided at a lower portion of the washing tank 2. Numeral 28 denotes a plurality of substantially disk-shaped lower injection nozzles rotatably connected to the water supply unit 27. The lower injection nozzles are provided with injection ports on the upper surface, and eject cleaning water and rotate by the reaction force thereof. 28a is above the water supply unit 27,
An upper injection nozzle having the same structure as the lower injection nozzle 28 rotatably mounted on the inner wall of the cleaning tank 2 and connected to a branch pipe 8 a branched from the water supply pipe 8. A drain pump 29 is connected to the bottom of the washing water 2 via a drain pipe 29a.

In this embodiment, as in the first embodiment, the washing water jetted from the lower jet nozzle 28 and the upper jet nozzle 28a flows into the detergent container 20 from above, and the molten detergent is mixed into the washing water. And wash the dishes. The effect of this embodiment is almost the same as that of the embodiment of FIG. 5, but in this embodiment, an opening is provided on the upper surface of the washing tank 2 so as to open on the counter 31, so that the detergent container can be bent without bending down. Detergent, tableware, etc.
Since a can be taken in and out, an easy-to-use dishwasher / dryer can be obtained.

Although the embodiment of the present invention has been described above, the dishwasher / dryer in which the detergent container according to the present invention is installed is not limited to the above-described embodiment, and the dishwasher having another structure and function is used. It can be installed in a washing / drying machine or a dishwashing / drying machine without a pre-draining function.

Also, the case where the detergent storage container is attached to the water supply port of the cleaning water protruding into the cleaning tank has been described. It may be mounted at a position substantially the same as or higher than the water supply port.

[0036]

The dishwasher and dryer according to the present invention has a detergent container which is detachably or integrally mounted on the inner wall of the washing tank at substantially the same height as or above the water supply port for washing water provided on the inner wall. In addition, since the above-mentioned detergent container is attached to the water inlet of the washing water, the washing water flows into the detergent container when water is supplied to the washing tank, and the detergent flows out or solidifies. There is no danger and all the detergents can be dissolved in the washing water during the washing step, so that tableware and the like can be washed efficiently.

The detergent container used in the dishwasher according to the present invention has a bottom portion which is inclined on both sides with a substantially central portion as a vertex, side plates provided on both sides in the width direction of the bottom portion, and a longitudinal direction of the bottom portion. A detergent storage portion comprising a detergent outflow prevention plate which is perpendicular to the side plate near the both end portions thereof and is provided upright with the detergent outflow portion between the side plate and the mounting portion for directly or through a member in the cleaning tank. Since the cleaning unit is provided, the detergent can be melted into the detergent accommodating unit by the cleaning water flowing from above during the cleaning step, and can be efficiently discharged and dissolved in the cleaning water.

Further, since the mounting portion is also used as a cover for the water supply port of the cleaning water projecting into the cleaning tank, the mounting is not only easy, but also the scattering of the cleaning water at the time of water supply can be prevented. .

[Brief description of the drawings]

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

FIG. 2 is a perspective view of the detergent container of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a cross-sectional view showing a state where the detergent container of FIG. 2 is attached to a cleaning tank.

FIG. 5 is an explanatory diagram of Embodiment 2 of the present invention.

FIG. 6 is an explanatory diagram of another example of the second embodiment.

FIG. 7 is a longitudinal sectional view of the dishwasher / dryer of FIG. 6;

FIG. 8 is a longitudinal sectional view of an example of a conventional dishwasher / dryer.

FIG. 9 is a perspective view of the door of FIG.

FIG. 10 is a perspective view of a main part of another example of the conventional dishwasher / dryer.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main body, 2 washing tanks, 4 spray nozzles, 5 washing water pumps, 9 doors, 10 tableware baskets, 11 heaters, 13 operation units, 14 water supply valves, 16 water supply ports, 17 fixing members, 2
0 detergent container, 21 detergent container, 22 bottom, 2
3a, 23b side wall, 24a, 24b detergent outflow prevention plate, 25 detergent outflow portion, 26 mounting portion, 30 sink,
35 Dishwasher / dryer.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Taihei Hasegawa 1728-1 Koeda, Oaza, Hanazono-cho, Osato-gun, Saitama Prefecture Inside Mitsubishi Electric Home Equipment Co., Ltd. Mitsubishi Electric Home Equipment Co., Ltd. F-term (reference) 3B082 AA01 BA03 CC01 CC03

Claims (4)

[Claims] 1. A dish washer / dryer which stores a tableware basket in a cleaning tank and injects washing water from a spray nozzle toward the tableware or the like stored in the tableware basket to wash the tableware or the like, A dishwasher / drier characterized in that a detergent storage container is detachably or integrally attached to an inner wall of a tank at substantially the same height as or above the water supply port for washing water provided on the inner wall. 2. The dishwasher / dryer according to claim 1, wherein the detergent storage container is attached to a water supply port of the washing water protruding into the washing tank. 3. A bottom portion inclined to both sides with a substantially central portion as a vertex, side plates provided on both sides in the width direction of the bottom portion, and near the both end portions in the longitudinal direction of the bottom portion, orthogonal to the side plate, and A dishwasher, comprising: a detergent storage portion comprising a detergent outflow prevention plate provided upright with a detergent outflow portion interposed therebetween; and a mounting portion for directly or through a member in a cleaning tank. Detergent storage container used for. 4. The detergent container used in a dishwasher according to claim 4, wherein the mounting portion also serves as a cover for a water supply port of the washing water protruding into the washing tank.