JPH11155794A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher in which a filtering function can be stably exhibited and the tank filter of a washing tank is easily attached and detached. 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 from the washing nozzle to tableware in the washing chamber 2 and performs rinsing by jetting rinsing water from the rinsing nozzle, the washing tank 10 is formed while being recessed on a bottom wall 8 of the washing chamber 2, a freely attachable and detachable tank filter 31 is provided at an opening on the upper surface of the washing tank 10, an inclined part 32 is formed at the edge part of an opening on the washing tank 10, and the edge part of the tank filter 31 is made into slope almost matched with the inclination of the inclined part 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing and rinsing dishes in a washing room.

[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, for example, 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.

[0004] The washing water injected from the upper and lower washing nozzles flows into the washing tank and is circulated.
The rinsing water injected from the upper and lower rinsing nozzles is also configured to flow into the cleaning 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. If a large foreign substance flows into the cleaning tank, a pump or the like may break down.Therefore, a tank filter is attached to the upper opening of the cleaning tank. Was designed not to flow into.

FIG. 12 is a sectional view of the tank filter 101 of a conventional dishwasher. Cleaning room 10
At the rear of the bottom wall 103 of the second cleaning tank 104, a cleaning tank 104 that is recessed downward and opens to the upper surface is formed.
Receiving rails 107 are formed so as to protrude from the left and right sides of the rear wall 106 corresponding to the opening of the cover 04.

On the other hand, the tank filter 101 is provided with a plurality of fine through holes for filtering relatively large residual vegetables in the washing water. It protrudes.

When mounting the tank filter 101, the rear part of the tank filter 101 is placed on the receiving rail 107 and the engagement piece 108 is attached to the bottom wall 103.
It was mounted on the upper part of the washing tank 104 so as to be detachable.

[0010]

Conventionally, in order to mount the tank filter 101 in this manner, the cleaning tank 1 is required.
When the tank filter 101 is mounted and removed from directly above the cleaning tank 104, the tank filter 101 must be lifted directly above the cleaning tank 104, and there has been a problem that it is difficult to work because it interferes with a nozzle above.

Further, since the engaging piece 108 is formed as a step, it is difficult for residual foods and the like dropped from tableware to enter the tank filter 101, and the tank filter 101 and the bottom wall 10
3 or a problem that the residual vegetables easily enter the cleaning tank 104 from a gap with the cleaning tank 104.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem, and an object of the present invention is to provide a dishwasher capable of easily attaching and detaching a tank filter of a washing tank and stably exhibiting a filtering function. To provide.

[0013]

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. The washing water is sprayed from the washing nozzle to the dishes in the washing chamber from the washing nozzle to perform washing. The cleaning tank is formed by being recessed in the bottom wall of the cleaning chamber, and a detachable tank filter is provided at the upper opening of the cleaning tank, and the cleaning tank is provided. An inclined portion is formed at the opening edge portion, and the edge portion of the tank filter has an inclined surface substantially matching the inclination of the inclined portion.

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, and the washing water in the washing tank is jetted from the washing nozzle to the dishes in the washing chamber. And wash it,
In a dishwasher in which rinsing water is sprayed from a rinsing nozzle to perform rinsing, a washing tank is formed by being recessed in a bottom wall of a washing chamber, and a detachable tank filter is provided at an upper opening of the washing tank. An inclined portion is formed at the opening edge of the tank filter, and the edge of the tank filter is an inclined surface substantially matching the inclination of the inclined portion.Therefore, by mounting the edge of the tank filter on the inclined portion, the tank filter is Will be retained.

This makes it possible to reduce or eliminate the receiving rail for holding the tank filter.
In addition to reducing the number of parts, when taking out the tank filter, it is necessary to take out the tank diagonally along the slope of the inclined part, or when installing it, insert it from diagonally above. This also makes attachment and detachment work extremely easy.

Further, since the edge of the tank filter and the inclined portion are formed to have substantially the same inclined surface, the edge of the tank filter comes into close contact with the inclined portion. Thereby, it is possible to effectively prevent intrusion of residual vegetables and the like into the washing tank.

In a dishwasher according to a second aspect of the present invention, the tank filter is installed at a position lower than the bottom wall.

According to the second aspect of the present invention, in addition to the above, since the tank filter is installed at a position lower than the bottom wall, a step or a gap is formed between the tank filter and the bottom wall or the cleaning tank. Thus, it is possible to prevent the intrusion of the residual vegetables more reliably.

[0019]

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 a cleaning chamber 2 is formed, and openings 6 and 7 for the entrance and exit of the rack R are formed opposite the 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.

Incidentally, 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 via a valve or a pipe (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.

Here, at the front upper edge of the opening of the washing tank 10, an inclined portion 32 inclined downward and continuously from the front bottom wall 8 is formed 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, since 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.

In the embodiment, only the front surface 31A of the tank filter 31 has an inclined surface. However, if an inclined portion is also formed at the rear of the washing tank 10 and the rear surface of the tank filter 31 is also an inclined surface, the receiving rail 33 is also formed. Needless to say, it can be abolished.

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), thereby preventing the tank filters 31.

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, since the stoppers 41, 41 of the rinsing water receiver 23 extend below the upper edge of the adjacent tank filter 31 as described above, the adjacent tank filter 31 is positioned below the rinsing water receiver 23. No more sneaking into. Here, if the tank filter 31 shifts laterally 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 enter the washing tank 10 from there. However, the inconvenience is prevented by the stopper 41.

[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. In a dishwasher in which washing is performed by injecting washing water in a tank and rinsing water is ejected from a rinsing nozzle, a washing tank is formed by being recessed in a bottom wall of a washing chamber, and a washing tank is formed. A detachable tank filter is provided at the top opening, and an inclined portion is formed at the opening edge of the cleaning tank. The edge of the tank filter has an inclined surface substantially matching the inclination of the inclined portion. By mounting the part on the inclined part, the tank filter is held.

As a result, the receiving rail for holding the tank filter can be reduced or eliminated.
In addition to reducing the number of parts, when taking out the tank filter, it is necessary to take out the tank diagonally along the slope of the inclined part, or when installing it, insert it from diagonally above. This also makes attachment and detachment work extremely easy.

Further, since the edge of the tank filter and the inclined portion are formed so as to be substantially coincident with each other, the edge of the tank filter comes into close contact with the inclined portion. Thereby, it is possible to effectively prevent intrusion of residual vegetables and the like into the washing tank.

According to the second aspect of the present invention, in addition to the above, since the tank filter is installed at a position lower than the bottom wall, a step or a gap is formed between the tank filter and the bottom wall or the cleaning tank. Thus, it is possible to prevent the intrusion of the residual vegetables more reliably.

[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 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 Department

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 water in the washing tank is sprayed from the washing nozzle to dishes in the washing chamber. In the dishwasher that performs rinsing by spraying rinsing water from the rinsing nozzle, the washing tank is formed by being recessed in a bottom wall of the washing chamber, and an opening on an upper surface of the washing tank is provided. A dishwasher, wherein a detachable tank filter is provided, an inclined portion is formed at an opening edge of the washing tank, and an edge of the tank filter has an inclined surface substantially matching the inclination of the inclined portion. Machine. 2. The dishwasher according to claim 1, wherein the tank filter is installed at a position lower than the bottom wall.