JPH11155795A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher which exhibits a filtering function effectively by preventing the position of the tank filter of a washing tank from being deviated. SOLUTION: This dishwasher is provided with a washing nozzle and a rinsing nozzle, which are provided in a washing chamber 2, and a washing tank 10 opened under the washing chamber 2, performs washing by jetting washing water in the washing tank 10 from the washing nozzle to tableware moved in the washing chamber 2 and performs rinsing by jetting rinsing water from the rinsing nozzle, the dishwasher is provided with a rinsing water receiver 23 provided on the washing tank 10 corresponding to the downside of the rinsing nozzle for receiving the rinsing water jetted from the rinsing nozzle and discharging it outside and a tank filter 31 provided at the opening of the washing tank 10, and the rinsing water receiver 23 is provided with a stopper 41 extending downward and abutted on the side face of the tank filter 31 adjacent to the rinsing water receiver 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, this type of dishwasher has been used for washing up and down in a washing area in a washing chamber (referred to as a washing chamber in the official gazette) as shown in Japanese Utility Model Publication No. 55-51415 (A47L15 / 42). A vertical rinsing nozzle is disposed in the nozzle and a rinsing area (referred to as a rinsing chamber in the gazette), and a transfer mechanism is mounted between the upper and lower nozzles.
The rack containing tableware is transported at a constant speed.

A washing tank is provided below the washing chamber and has an opening on the upper surface. In the washing area, washing water in the washing tank is sprayed from the upper and lower washing nozzles onto tableware by a pump. By injecting rinsing water, which is hot water, into tableware, washing and rinsing are performed sequentially and continuously.

The washing water injected from the upper and lower washing nozzles is
Although the washing water flows into the washing tank and is circulated, the rinsing water jetted from the upper and lower rinsing nozzles also flows into the washing tank. Therefore, an overflow pipe is provided in the washing tank to discharge the washing water (overflow water) increased by the inflow of the rinsing water.

When rinsing water is allowed to flow as it is,
Since the washing water in the washing tank is diluted, a rinsing water receiver (referred to as a rinsing water tray in the publication) is conventionally provided below the rinsing nozzle as described in the above-mentioned publication, and one of the rinsing water (rinsing water) is provided. Part (about half) was received by the rinse water receiver and discharged to the outside.

[0006] Further, food stains, residual vegetables and the like fall from the tableware. Of these, if a large foreign substance flows into the cleaning tank, there is a danger that the pump or the like may malfunction.Therefore, a plurality of tank filters are juxtaposed at the top opening of the cleaning tank. Was designed not to flow into the washing tank.

FIG. 12 is a cross-sectional view of the rinsing water receiver 111 and the tank filter 101 of a conventional dishwasher. At the rear of the bottom wall 103 of the cleaning chamber 102, a cleaning tank 104 that is recessed downward and opens to the upper surface is formed, and the rear wall 10 corresponding to the opening of the cleaning tank 104 is formed.
6, a receiving rail 107 is formed so as to project right and left. A receiving portion 108 is provided above the receiving rail 107.
Is formed, and an overflow pipe 109 is drawn into the cleaning tank 104 from the rear wall 106 and opens upward.

The overflow pipe 109
A pipe filter 112 having fine through holes 111...
Further, the rinsing water receiver 111 is disposed at a position corresponding to the upper side of the overflow pipe 109, the rear part is placed on the receiving part 108, and the front part is the bottom wall 103.
It is placed and mounted on top.

A plurality of fine through holes are formed in the rinse water receiver 111, and a drain port (not shown) is formed at a position above the pipe filter 112. Then, about half of the rinsing water injected from the rinsing nozzle flows into the washing tank 104 through the through hole, and the remainder flows into the overflow pipe 109 through the pipe filter 112 from the drain port, and is directly discharged to the outside.

On the other hand, the tank filter 101 is provided with a plurality of fine holes for filtering relatively large residual vegetables in the washing water. A plurality of parts are arranged side by side so as to close the part without a gap. When the tank filter 101 is mounted, the rear portion of the tank filter 101 is
7 and a front part is provided with an engaging piece (not shown) on the bottom wall 1.
03 and is detachably provided in the opening of the washing tank 104 (at a position lower than the rinsing water receiver 111).

The relatively large residual vegetables and the like that have fallen from the tableware are received by the tank filter 101 and the rinsing water receiver 111, and are prevented from entering the washing tank 104.

[0012]

In the case where the tank filter 101 adjacent to the rinsing water receiver 111 sinks below the rinsing water receiver 111 due to vibration or misalignment at the time of mounting due to the conventional structure. There is.
In such a state, the adjacent tank filter 10
There is a risk that a gap may be formed between the first and the first 101, and the residual vegetables may directly enter the cleaning tank 104 and damage the pump and the like.

The pipe filter 112 is provided to prevent intrusion of garbage into the overflow pipe 109. However, since the filter itself is small, it is lost when it is removed during maintenance or the like. Had occurred.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem, and it is possible to prevent displacement of a tank filter of a washing tank and to effectively perform a filtering function. Machine.

[0015]

DISCLOSURE OF THE INVENTION The dishwasher of the present invention comprises:
A washing nozzle and a rinsing nozzle provided in the washing chamber, and a washing tank opened below the washing chamber are provided, and washing is performed by spraying washing water in the washing tank from the washing nozzle to tableware transferred in the washing chamber. Rinsing water by spraying rinsing water from a rinsing nozzle to perform rinsing, provided on the washing tank below the rinsing nozzle, and receiving rinsing water sprayed from the rinsing nozzle to discharge to the outside. The rinsing water receiver includes a receiver and a tank filter provided at an opening of the washing tank, and the rinsing water receiver is provided with a stopper extending downward and abutting on a side surface of the tank filter adjacent to the rinsing water receiver.

According to the present invention, there is provided a washing nozzle and a rinsing nozzle provided in the washing chamber, and a washing tank which is opened below the washing chamber. In a dishwasher in which water is sprayed to perform washing and rinsing water is sprayed from a rinsing nozzle to perform rinsing, the rinsing water provided on a washing tank corresponding to a position below the rinsing nozzle and sprayed from the rinsing nozzle. Rinsing water drain that receives and discharges outside,
A tank filter provided at the opening of the washing tank, and the rinse water receiver is provided with a stopper extending downward and abutting on the side surface of the tank filter adjacent to the rinse water receiver. The filter does not fall under the rinse water receiver.

As a result, it is possible to avoid a problem in which a gap is formed between the tank filters arranged side by side, and large residual vegetables and the like enter the washing tank from there.

A dishwasher according to a second aspect of the present invention is provided with a filter portion having a fine through-hole formed on the bottom surface of the rinsing water receiver, wherein an overflow pipe of a washing tank is inserted into the filter portion. It is.

According to the second aspect of the present invention, in addition to the above, a filter portion having a fine through-hole is provided on the bottom surface of the rinsing water receiver, and the overflow pipe of the washing tank is inserted into the filter portion. , Such as when a special filter is detachably attached to the overflow pipe,
There is no inconvenience of loss.

[0020]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a vertical front view of a dishwasher DW of the present invention, FIG. 2 is another vertical front view of a dishwasher DW, FIG. 3 is a vertical front view of a washing tank 10 of the dishwasher DW, and FIG. The longitudinal side view of the washing tank 10 part of the dishwasher DW is shown, respectively.

In each of the figures, reference numeral 1 denotes an exterior body in which the inside is formed as a washing chamber 2 and openings 6 and 7 for the entrance and exit of the rack R are formed opposite to both side walls 3 and 4. Rear (rear wall 5
A rack rail 12 is formed so as to form a cleaning tank 10 having an opening on the upper surface by recessing the side R) downward, and supporting the rack R movably from the opening 6 side to the opening 7 side before and after the lower portion inside the cleaning chamber 2. , 12 are mounted.

The inside of the cleaning chamber 2 has a cleaning area W1 on one opening 6 side serving as an inlet and a rinsing area W on the other outlet side serving as an outlet.
A pair of upper and lower cleaning nozzles 13A and 13B are provided above and below the cleaning area W1 to perform the preceding cleaning, and a pair of upper and lower rinsing nozzles 14A are used to perform the final rinsing above and below the rinsing area W2. , 14B are provided. The rack rails 12, 12 are provided from the washing area W1 to the rinsing area W2. Further, a curtain C is suspended between the openings 6 and 7 and the regions W1 and W2.

The upper cleaning nozzle 13A and the upper rinsing nozzle 14A are attached to the top wall 15 of the exterior body 1 and the like.
, 17A, the washing water or the rinsing water is sprayed downward, and the lower washing nozzle 13B and the lower rinsing nozzle 14B are mounted just below the rack rails 12, 12, and are mounted.・ ・ 、 17
Cleaning water or rinsing water is sprayed upward from B.

Numeral 18 sucks and pressurizes the washing water stored in the washing tank 10 and pressurizes the upper and lower washing nozzles 13A,
13B is a pump device that supplies 13B via hollow tubes 20 and 21, respectively. The washing tank 10 is opened upward below the rear part of the washing chamber 2, and a plurality of fine through-holes are formed in this opening to filter relatively large residual vegetables in the washing water. A plurality of filters 31 are detachably arranged in parallel. Further, a door 19 is provided on the front surface of the exterior body 1.

It should be noted that rinsing water is supplied to the upper and lower rinsing nozzles 14A and 14B from a suitable water supply device (not shown) such as a boiler separately provided outside the exterior body 1 through valves and pipes (not shown). Also, the lower rinsing nozzle 14B
The rinsing water receiver 23 is arranged below the cleaning tank 10 so as to correspond to the upper part of the washing tank 10, and is located on the side of the tank filter 31.

At the front upper edge of the opening of the washing tank 10, there is formed an inclined portion 32 which is continuously lower from the front bottom wall 8 to the rear as shown in FIG. Furthermore, this inclined part 3
Receiving rails 33 project left and right from the rear wall 5 corresponding to the rear of the tank filter 31.
The rear portion is mounted on the receiving rail 33, and the front portion is detachably provided while being held by the inclined portion 32.

In this case, the front surface 31 of the tank filter 31
A (edge) is an inclined surface substantially matching the inclination of the inclined portion 32 as shown in FIG. Accordingly, when the tank filter 31 is mounted, the tank filter 31 is inserted into the cleaning chamber 2 from the front, and the rear portion is placed on the receiving rail 33, and then the front surface 31A is placed on the inclined portion 32. It will be installed at a position slightly lower than the bottom wall 8.

At this time, the front surface 31 of the tank filter 31
Since A and the inclined portion 32 are formed as inclined surfaces that substantially match each other, the front surface 31 </ b> A is in close contact with the inclined portion 32. In addition, front 3
Since the upper end of 1A is located at a position lower than the bottom wall 8, there is no step or gap between the tank filter 31 and the bottom wall 8 or the washing tank 10, so that the inconvenience of residual vegetables entering from this portion can be eliminated. Become like

Further, the front surface 31A of the tank filter 31 is held by the inclined portion 32 and cannot be moved back and forth.
There is no need to attach a front receiving rail. Also,
When the tank filter 31 is taken out, the tank filter 31 can be taken obliquely forward along the inclination of the inclined portion 32, so that the work becomes easy even when the nozzle 13B or the like is above, including the above-described attachment.

On the other hand, the rinsing water receiver 23 is a rectangular container having an open top as shown in FIGS. 6 and 7, and is disposed with its longitudinal direction facing the front and rear direction of the dishwasher 1.
A plurality of fine through holes 34 are formed in the bottom surface. Further, a drain port 36 is opened at the rear of the bottom surface of the rinsing water receiver 23, and a rectangular filter section 37 is provided at a position corresponding to a position below the drain port 36.

In this case, the filter portion 37 may be formed integrally with the rinse water receiver 23 so as to protrude therefrom. A separate member may be fixed to the bottom surface of the rinse water receiver 23 by welding or screws.

A plurality of fine through holes 38 are formed in at least the front surface and the left and right surfaces of the filter portion 37.
A round hole-shaped insertion port 39 is formed on the rear surface. Furthermore,
Stoppers 41, 41 are provided on the lower left and right sides of the rinse water receiver 23.
Are formed downward and forward and backward, and the entire upper surface of the rinse water receiver 23 is covered with a filter (not shown).

On the other hand, the rear wall 5 located at substantially the same height as the bottom surface 8
The overflow pipe 43 is drawn into the washing tank 10 from the rear wall 5 (at a position substantially at the same height as the inclined portion 32) below the receiving portion 42. The overflow pipe 43 extends horizontally from the rear wall 5 toward the front as shown in FIGS. The lower half of the opening of the front end (front end) of the pipe having a cylindrical shape is closed, and the upper half of the opening is cut in a predetermined range toward the rear, and an opening 44 is formed there. The rear end of the overflow pipe 43 communicates with the outside.

When attaching the rinsing water receiver 23, first, the tip of the overflow pipe 43 is inserted into the insertion port 39 of the filter part 37, and in this state, the rear part of the rinsing water receiver 23 is placed on the receiving part 42. Place. Then, the front portion of the rinse water receiver 23 is placed on the bottom wall 8 (FIG. 6).

In this state, the overflow pipe 43 closes the insertion port 39 and the overflow pipe 4
The opening 44 of the drain opening 3 is opened in the filter 37.
6 corresponds to the upper part of the opening 44. Further, the stoppers 41 of the rinse water receiver 23 extend below the upper edge of the adjacent tank filter 31 (FIG. 6), and abut against the side surface of the tank filter 31. Thereby, the lateral displacement of each tank filter 31 is prevented.

Another safety overflow pipe 47 is provided upright at a substantially central portion of the washing tank 10 in the left-right direction. The upper end opening 47A of the safety overflow pipe 47 is inserted into the drain handle 48, and in this state, opens upward in the cleaning tank 10 at a position higher than the opening 44 of the overflow pipe 43. The lower end of the overflow pipe 47 communicates with the lower outside of the cleaning tank 10.

Next, reference numeral 25 denotes a rack feed supported by the hanging plates 61 so as to be movable in the left-right direction.
4 reciprocally moves left and right by a crank mechanism 26 or the like driven by 4. A plurality of rack feed pins 49 are attached to the rack feed 25 so as to be repeatedly operated in an arc around the support shaft 27. The rack feed pins 49... Sequentially engage with the rack R for storing the tableware D placed on the rack rails 12, 12,
The racks R are sequentially moved from the entrance opening 6 to the exit opening 7 at a substantially constant speed.

A cleaning switch 51 is mounted above the rack rails 12 and 12 in the cleaning area W1, and a rinse switch 52 is mounted in the rinsing area W2. Further, reference numeral 53 denotes a liquid level switch provided in the cleaning tank 10, and reference numeral 54 denotes an auxiliary heater for heating the cleaning tank 10. Reference numeral 56 denotes an electrical box provided on the front side of the cleaning tank 10, and an operation switch 57, a switch 58 of the auxiliary heater 54, and the like are provided on the front surface thereof. And 59 is the exterior body 1
Is a switch box provided on the upper surface.

With the above arrangement, when washing the dishes D, they are stored in the rack R and then inserted into the washing chamber 2 of the exterior body 1 through the opening 6 on the entrance side. The rack R is thereafter moved from the opening 6 side to the opening 7 side at a constant speed by the rack feeder 25 as described above. When the rack R reaches the cleaning switch 51 in the cleaning area W1, it is closed. The pump device 18 is driven. Thereby, the injection port 16 of the upper and lower cleaning nozzles 13A and 13B
The washing water in the washing tank 10 is sprayed onto the tableware D from A,..., 16B,. The washing water used for washing passes through the tank filter 31.
Eventually, it flows into the cleaning tank 10 and again the pump device 1
8 will be sucked.

When the rack R is further moved by the rack feed 25 and reaches the rinse switch 52 in the rinse area W2, it is closed and the valve is opened, whereby the injection ports of the vertical rinse nozzles 14A and 14B are opened. 17A
Rinsing water composed of warm water is sprayed onto the tableware D from..., 17B. The rinsing water used for rinsing flows into the rinsing water receiver 23 through the filter, and about half flows into the washing tank 10 through the through holes 34. The gas directly enters the opening 44 of the overflow pipe 43 and is discharged to the outside.

Then, the rack R is finally sent out of the exterior body 1 through the opening 7 on the exit side. Such washing and rinsing are continuously performed on a plurality of racks R inserted at predetermined intervals. However, since about half of the rinsing water flows into the washing tank 10 as described above, the washing is performed. The water level rises. Then, when the height rises from the height of the opening 44 of the overflow pipe 43, the portion enters the inside of the overflow pipe 43 from the opening 44 of the overflow pipe 43 through the through holes 38... Will be discharged. In the process of passing through the through holes 38, a relatively large foreign matter is removed.

At this time, the overflow pipe 43 extends in the horizontal direction, and the opening 44 is formed by notching the upper side from the end to the inside of a predetermined range. The opening area of 44 is expanded without being limited by the pipe diameter of the overflow pipe 43.

As a result, foreign matter in the washing tank 10 that has passed through the tank filter 31 and the through holes 38 of the filter section 37.
Can be prevented as much as possible, and it is possible to prevent inconveniences such as smooth discharge of overflow water and overflow of washing water out of the dishwasher DW. become.

Further, another overflow pipe 47 which is opened at a position higher than the overflow pipe 43 is provided in the cleaning tank 10. Therefore, even if the overflow pipe 43 is clogged, The overflow water can be discharged from the overflow pipe 47 opening upward. This makes it possible to more reliably discharge the overflow water and more reliably prevent the overflow of the wash water from the dishwasher DW.

Further, since the filter portion 37 for preventing foreign matter from entering the overflow pipe 43 is attached to the rinsing water receiver 23, a special filter is detachably attached to the overflow pipe 43, as shown in FIG. There is no inconvenience of loss.

Further, as described above, the stoppers 41, 41 of the rinsing water receiver 23 extend below the upper edge of the adjacent tank filter 31 and abut against the side surface thereof. It is no longer possible to sneak below 23. Here, if the tank filter 31 shifts sideways and sinks below the rinse water receiver 23, a gap is formed between the tank filters 31 arranged side by side, and large residual vegetables and the like are washed therefrom. Although it enters the tank 10, the stopper 4
1 also prevents such inconvenience.

[0047]

As described above in detail, according to the present invention, a washing nozzle and a rinsing nozzle provided in a washing chamber, and a washing tank which is opened below the washing chamber, are provided for washing tableware transferred in the washing chamber. In a dishwasher in which washing is performed by spraying washing water in a washing tank from a nozzle, and rinsing water is sprayed from a rinsing nozzle, the dishwasher is provided on the washing tank corresponding to a position below the rinsing nozzle. A rinse water receiver for receiving the rinse water injected from the nozzle and discharging the rinse water to the outside, and a tank filter provided at an opening of the washing tank, wherein the rinse water receiver extends downward and is provided with the rinse water receiver. Since the stopper that abuts the side surface of the tank filter adjacent to the filter is provided, it is possible to prevent the adjacent tank filter from sinking below the rinse water receiver.

As a result, it is possible to avoid a problem that a gap is formed between the tank filters arranged side by side, and large residual vegetables and the like enter the washing tank from there.

According to the second aspect of the present invention, in addition to the above, a filter portion having a fine through-hole is provided on the bottom surface of the rinsing water receiver, and the overflow pipe of the washing tank is inserted into this filter portion. , Such as when a special filter is detachably attached to the overflow pipe,
There is no inconvenience of loss.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of a dishwasher according to the present invention.

FIG. 2 is another vertical sectional front view of the dishwasher of the present invention.

FIG. 3 is a vertical sectional front view of a washing tank portion of the dishwasher of the present invention.

FIG. 4 is a vertical sectional side view of a washing tank portion of the dishwasher of the present invention.

FIG. 5 is a schematic vertical sectional side view of a tank filter portion of the dishwasher of the present invention.

FIG. 6 is a schematic vertical sectional side view of a rinse water receiving portion of the dishwasher of the present invention.

FIG. 7 is a perspective view of a rinse water receiver of the dishwasher of the present invention.

FIG. 8 is a side view of an overflow pipe of the dishwasher of the present invention.

FIG. 9 is a plan view of an overflow pipe of the dishwasher of the present invention.

FIG. 10 is a front view of an overflow pipe of the dishwasher of the present invention.

FIG. 11 is a schematic vertical sectional side view of a safety overflow pipe portion of the dishwasher of the present invention.

FIG. 12 is a vertical sectional side view of a rinsing water receiver and a tank filter portion of a conventional dishwasher.

[Explanation of symbols]

 DW tableware washing machine D tableware W1 washing area W2 rinsing area R rack 1 exterior body 2 washing room 10 washing tank 13A, 13B upper and lower washing nozzles 14A, 14B up and down rinsing nozzle 23 rinse water receiver 25 rack feed 31 tank filter 31A front face 32 inclined Part 37 filter part 41 stopper 43 overflow pipe

Claims (2)

[Claims] 1. A washing nozzle and a rinsing nozzle provided in a washing chamber, and a washing tank opened below the washing chamber, and washing of the dishes in the washing tank from the washing nozzle to tableware transferred in the washing chamber. A dishwasher that performs washing by spraying water and rinsing water by spraying rinsing water from the rinsing nozzle, wherein the rinsing nozzle is provided on the washing tank corresponding to a position below the rinsing nozzle, and is sprayed from the rinsing nozzle. A rinse filter for receiving the rinse water and discharging the rinse water to the outside, and a tank filter provided at an opening of the washing tank, wherein the rinse water receiver extends downward and is adjacent to the rinse water receiver. A dishwasher, wherein a stopper is provided for contacting a side surface of the tank filter. 2. A dishwasher according to claim 1, wherein a filter portion having fine through holes is provided on the bottom surface of the rinse water receiver, and an overflow pipe of a washing tank is inserted into the filter portion. .