JP2008011998A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher which can reduce blocking of the kitchen refuse filter caused by washing water cycle obstruction with a simple structure, while improving filtering efficiency of the washing water using a kitchen refuse filter. <P>SOLUTION: The washing water is absorbed from the bottom of washing tub 12 by a washing pump, and jetted to dishes stored in the washing tub 12. The washing tub 12 is provider with, in its bottom, a kitchen refuse filter 21 of coarse mesh in the lower part and a kitchen refuse filter 22 of fine mesh in the upper part. The washing water is filtered with the kitchen refuse filter 21 (arrow mark A1), and also filtered with the kitchen refuse filter 22 (arrow mark A2), or otherwise, washing water bypassing the kitchen refuse filter 21 (arrow mark A3) is filtered with the kitchen refuse filter 22 (arrow mark A2). By this mechanism, volume of the kitchen refuses to be filtered with one unit of kitchen refuse filter 21 (22) is reduced, and blocking is hard to occur. Moreover, even when blocking occurs in the kitchen refuse filter 22 of fine mesh, washing water is filtered with the kitchen refuse filter 21 of coarse mesh. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dishwasher that filters washing water for washing dishes with a leftover filter.

  In a conventional dishwasher, a tableware bowl for storing tableware to be cleaned, a washing tank for storing washing water for washing tableware in the tableware bowl, and an injection port for injecting washing water to the tableware are formed. And a cleaning pump for circulating the cleaning water stored in the cleaning tank and ejecting the cleaning water from the injection port.

The washing water stored in the washing tank is sucked into the washing pump and sprayed to the dishes, and then stored in the washing tank, and again sucked into the washing pump and injected into the dishes to circulate inside the dishwasher. .
In the middle of the washing water circulation path, a leftovers filter is arranged, and the leftovers filter filters the washing water to filter out the leftovers in the washing water (for example, leftovers attached to the dishes) (see Patent Document 1). .

FIG. 7 is a schematic front view of the bottom of a washing tub 8 included in a conventional dishwasher, and FIG. 8 is a schematic side view of the same.
A water storage part 81 for storing cleaning water is provided at the bottom of the cleaning tank 8.
A cleaning pump 83 that sucks the cleaning water stored in the water storage unit 81 is connected to the bottom of the water storage unit 81 via a suction hose 82. In other words, the cleaning water stored in the water storage unit 81 is sucked from the bottom of the water storage unit 81 by the cleaning pump 83 and is supplied from the cleaning nozzle 86 connected to the cleaning pump 83 via the discharge hose 85 into the cleaning tank 8. It is injected into the tableware.

  The cleaning water sprayed from the cleaning nozzle 86 cleans the tableware in the cleaning tank 8, flows into the bottom of the cleaning tank 8, and is stored in the water storage unit 81. Then, the cleaning water stored in the water storage unit 81 is again sucked by the cleaning pump 83.

  Here, the level of the cleaning water stored in the water storage unit 81 is the water level W2 located above the water storage unit 81 when the cleaning pump 83 is not operating. It is the water level W3 located in the up-down direction center part.

Now, in order to filter out the leftovers contained in the washing water, the bottom of the water storage unit 81 is provided with a fixed filter 87 fixed to the water storage unit 81 with screws and a remanent filter 88 arranged detachably. ing.
The fixed filter 87 is disposed so as to separate the water storage portion 81 and the suction hose 82.
The leftover filter 88 is disposed on the upper side of the fixed filter 87 so as to be separated from the fixed filter 87.

  Each of the fixed filter 87 and the leftover filter 88 has a mesh shape, and is submerged in the cleaning water stored in the water storage section 81 regardless of whether the cleaning pump is operating.

  The cleaning water stored in the water storage part 81 passes through the leftover filter 88 and the fixed filter 87 in this order, and is sucked into the cleaning pump 83 via the suction hose 82. The peripheral edge of each of the leftover filter 88 and the fixed filter 87 is in contact with the inner surface of the water storage unit 81, and thus the cleaning water is drawn into the cleaning pump 83 bypassing the leftover filter 88 or the fixed filter 87. There is nothing.

The leftover filter 88 is provided with a gripping portion 89, and the user of the dishwasher grips the gripping portion 89 and attaches and detaches the leftover filter 88. The user cleans the removed leftover filter 88 and cleans the fixed filter 87 with the leftover filter 88 removed.
JP 2004-344385 A

  However, in the conventional dishwasher, when the leftover filter 88 on the upstream side of the circulation path of the washing water sucked into the washing pump 83 is clogged, the washing water may pass through the fixed filter 87 on the downstream side of the circulation path. There was a problem that the circulation of the wash water was hindered.

  In order to suppress clogging of the leftover filter 88, when the leftover filter 88 with a coarse mesh is used, the amount of leftovers that pass through the leftover filter 88 increases, and the fixed filter 87 may become clogged. is there. Since the fixed filter 87 is difficult to remove, the leftovers attached to the fixed filter 87 are harder to remove than the leftovers attached to the easily removed leftover filter 88. For this reason, the fixed filter 87 is more likely to be clogged.

  Even when the fixed filter 87 is clogged, the circulation of the washing water is hindered. In order to suppress clogging of the fixed filter 87, when the fixed filter 87 having a coarse mesh is used, there arises a problem that the residual vegetables that have passed through the fixed filter 87 are easily sucked into the cleaning pump 83.

In addition, the size of the fixed filter 87 and the leftover filter 88 is reduced in order to reduce the amount of leftovers filtered by the fixed filter 87 and the leftover filter 88, thereby suppressing clogging and improving the filtration efficiency of the washing water. By enlarging and increasing the filtration area, it is conceivable to reduce clogging by reducing the amount of leftovers filtered out by the fixed filter 87 and the leftovers filter 88 per unit area.
However, the size of each of the fixed filter 87 and the leftover filter 88 is limited due to the layout inside the dishwasher, so that the respective filtration areas cannot be increased sufficiently.

  Therefore, it is conceivable to increase the total filtration area by adding one or more leftover filters on the upstream side or downstream side of the leftover filter 88 instead of increasing the size. In this case, the amount of leftovers that each of the leftover filters filters out is less than the amount of leftover that the single leftover filter 88 filters out.

  However, it is difficult to completely prevent clogging, and because the cleaning water is designed not to bypass the leftover filter 88 and the additional leftover filter, the upstream filter is clogged by any chance. In this case, the cleaning water is blocked by the clogged leftover filter 88 or the additional leftover filter, so that the cleaning water cannot flow downstream and the circulation of the cleaning water is hindered. The problem remains.

  Furthermore, the leftover filter provided in the dishwasher disclosed in Patent Document 1 suppresses clogging of the leftover filter by flowing out the leftovers filtered by the leftover filter together with the waste water. Therefore, it is necessary to provide a mechanism for automatically changing the position of the leftover filter, which complicates the configuration of the dishwasher.

  The present invention has been made in view of such circumstances, and the main object of the present invention is to provide a plurality of leftover filters, and at least a portion of the wash water that flows from the upstream side filter into the downstream side filter. By adopting a configuration to filter, it is possible to improve the filtration efficiency of the washing water by the leftover filter, and to suppress the circulation of the washing water by clogging of the leftover filter with a simple configuration. The purpose is to provide a dishwasher that can be used.

  Another object of the present invention is to have a configuration in which substantially the entire peripheral edge of the downstream side vegetable filter is in contact with the cleaning tank, and part of the peripheral edge of the upstream side vegetable filter is not in contact with the cleaning tank. An object of the present invention is to provide a dishwasher that can provide a path for washing water to flow into the first leftover filter without passing through the second leftover filter, and can easily filter out the leftover. .

  Another object of the present invention is to provide a configuration in which at least a part of the second leftover filter is disposed at a position higher than the highest water level of the wash water stored in the washing tank, An object of the present invention is to provide a dishwasher that can suppress the filtered-off leftovers from flowing out of the second leftover filter.

  Another object of the present invention is to provide a dishwasher that can efficiently filter out leftovers by adopting a configuration in which the mesh shape of the first leftover filter is different from the mesh shape of the second leftover filter. There is to do.

  Another object of the present invention is to provide a dishwasher capable of efficiently filtering out leftovers by arranging each of the leftover filters on the downstream side of the tableware bowl.

  Another object of the present invention is to provide a dishwasher in which each vegetable filter can be easily attached / detached by adopting a configuration in which each attachable / detachable vegetable filter is connected by a gripping portion.

  Another object of the present invention is to make each of the leftover filters more compact and easier by connecting each of the removable leftover filters with a gripping portion so that the leftover filter can be relatively connected to and separated from each other. An object of the present invention is to provide a dishwasher that can be attached and detached.

  Another object of the present invention is to provide a dishwasher capable of filtering out the remaining vegetables scattered on the inner surface of the side wall of the washing tank by arranging the second left vegetable filter on the inner surface of the side wall of the washing tank. There is to do.

  Still another object of the present invention is to provide a dishwashing that facilitates cleaning of leftovers attached to the second leftover filter by arranging the second leftover filter on the inner surface of the door that opens and closes the washing tank. Is to provide a machine.

  The dishwasher according to the present invention includes a tableware bowl in which tableware to be cleaned is placed, a washing tank that houses the tableware bowl and stores washing water for washing the tableware placed on the tableware bowl, A cleaning nozzle in which an injection port for injecting the cleaning water into the tableware is formed; a cleaning pump for inhaling the cleaning water stored in the cleaning tank and for injecting the inhaled cleaning water from the injection port; The cleaning water is stored in the cleaning tank and is sucked into the cleaning pump, and is then stored in the cleaning tank until it is sucked into the cleaning pump. In a dishwasher comprising a first vegetable filter for filtering the washing water to be filtered, the first vegetable filter is disposed upstream of the arrangement position of the first vegetable filter in the circulation path and flows into the first vegetable filter. At least part of the wash water Characterized in that it comprises a second Zan'na filter over.

  In the dishwasher according to the present invention, the first left over vegetable filter is such that substantially the entire periphery of the left over vegetable filter is in contact with the washing tank, and the second left over vegetable filter comprises the left over vegetable filter. A part of the peripheral part of the filter is in contact with the cleaning tank, and the remaining part is not in contact.

  The dishwasher according to the present invention is characterized in that at least a part of the second leftover filter is arranged at a position higher than the highest water level of the washing water stored in the washing tank.

  The dishwasher according to the present invention is characterized in that each vegetable filter has a mesh shape, and the size of the first vegetable filter is different from the size of the second vegetable filter.

  The dishwasher according to the present invention is characterized in that each leftover filter is arranged on the downstream side of the arrangement position of the dish bowl in the circulation path.

  In the dishwasher according to the present invention, each of the leftover filters is arranged so as to be detachable, and the first leftover filter is connected to the lower side of the second leftover filter. It is characterized by having a gripping part for gripping when the leftover filter is attached and detached.

  The dishwasher according to the present invention is characterized in that at least one of the remaining vegetable filters connected to the gripping part is provided so as to be able to contact and separate from other remaining vegetable filters. And

  The dishwasher according to the present invention is characterized in that the second leftover filter is arranged on the inner surface of the side wall of the washing tank.

  In the dishwasher according to the present invention, a door for opening and closing the washing tub is provided in a part of a side wall of the washing tub, and the second leftover filter is disposed on an inner surface of the door. And

  In the present invention, at least the washing water flowing into the first leftover filter is provided upstream of the first leftover filter that includes a plurality of leftover filters and filters the washing water sucked into the washing pump. A second leftover filter is provided to filter a portion.

The washing tank accommodates a tableware in which tableware to be cleaned is placed, and stores washing water for washing the tableware placed in the tableware.
The cleaning nozzle is formed with an injection port for injecting the cleaning water into the tableware, and the cleaning pump sucks the cleaning water stored in the cleaning tank and injects the sucked cleaning water from the cleaning nozzle injection port. Let

Similarly to the first leftover filter, the second leftover filter is also arranged in the circulation path of the cleaning water from when it is sucked into the cleaning pump to when it is sucked again. And the 2nd leftovers filter filters at least one part (namely, a part or all) of washing water which flows into the 1st leftovers filter.
For this reason, the wash water filtered by the first leftover filter is either the wash water previously filtered by the second leftover filter or the wash water not filtered by the second leftover filter.

That is, since the leftovers contained in the wash water are filtered out by the first or second leftover filter, the amount of the leftovers filtered out by the first leftover filter does not include the second leftover filter. It is reduced than the case.
In general, the second leftover filter disposed on the upstream side is clogged earlier than the first leftover filter disposed on the downstream side. Even when clogging occurs, the wash water does not pass through the second leftover filter, bypasses the second leftover filter, and flows into the first leftover filter. Not disturbed.

  In the present invention, since the first leftover filter for filtering the wash water sucked into the wash pump is in contact with the washing tank, the wash water is the first leftover filter. Without being filtered, the first leftover filter is bypassed and is not sucked into the washing pump.

  In addition, the second leftover filter disposed on the upstream side of the first leftover filter is in contact with the cleaning tank because a part of the peripheral edge is in contact with the cleaning tank and the remaining part is not in contact. A portion of the washing water flowing between the non-part and the washing tank and flowing into the first leftover filter bypasses the second leftover filter without being filtered into the second leftover filter. It flows into the first leftover filter. Further, the other part of the washing water flowing into the first leftover filter is filtered into the second leftover filter and then flows into the first leftover filter.

In the present invention, at least a part (that is, part or all) of the second leftover filter is disposed at a position higher than the highest water level of the cleaning water stored in the cleaning tank.
If the second leftover filter is submerged in the washing water stored in the washing tank, the leftovers filtered off by the second leftover filter float up in the washing water, and the second leftover filter is used. May flow out of the first leftover filter and further flow into the first leftover filter.
On the other hand, when part or all of the second leftover filter is not submerged, the leftovers filtered off by the second leftover filter adhere to the non-submerged part of the second leftover filter, This leftover is prevented from flowing out of the second leftover filter.

  Here, the maximum water level of the cleaning tank may be the water level at the storage limit of the cleaning tank, but is preferably the maximum water level of the cleaning water actually stored in the cleaning tank in the tableware cleaning process, the rinsing process, and the like. This water level is lower than the water limit at the storage limit of the cleaning tank, and it is necessary to prevent the cleaning water from leaking out of the cleaning tank and to suppress the use of an excessive amount of cleaning water. It is set so that a sufficient amount of washing water can be used.

In the present invention, each vegetable filter is mesh-shaped, and the mesh size of the first vegetable filter is different from the mesh size of the second vegetable filter.
Preferably, the mesh of the first vegetable filter for filtering the washing water sucked into the washing pump, that is, the vegetable filter arranged at a position near the suction side of the washing pump in the washing water circulation path is roughened. In this case, the cleaning pump can easily suck the cleaning water, and the circulation of the cleaning water becomes smoother.

  Then, in the upstream side of the first vegetable filter, that is, in the washing water circulation path, the mesh of the second vegetable filter arranged at a position far from the suction side of the washing pump is made fine. In this case, the second leftover filter makes it easy to filter not only large leftovers but also small leftovers. Even if the second leftover filter is clogged with leftovers, the first leftover filter filters the wash water and the circulation of the wash water is inhibited.

In the present invention, the cleaning water stored in the water storage section is sucked into the cleaning pump, and is jetted from the cleaning nozzle to the tableware placed on the tableware by the cleaning pump, and the water storage section flows down or dripping down. Each leftover filter is arranged downstream of the arrangement position of the tableware in the circulation path that is stored in the circulation path and again sucked into the washing pump (for example, below the tableware).
Since leftovers are mainly attached to tableware, the cleaning water stored in the water storage section after being sprayed onto the tableware contains leftovers. That is, since the leftovers are contained in the wash water that circulates downstream from the arrangement position of the tableware bowl in the wash water circulation path, each of the leftover filters is arranged to filter this wash water.

In the present invention, the first and second filters are detachably arranged and are connected by a gripping portion.
The gripping part is gripped by the user of the dishwasher when attaching and detaching the leftover filter. The user holds the holding part, removes the plurality of leftover filters from the dishwasher at a time, cleans the removed leftover filter, and holds the plurality of cleaned leftover filters in the holding part. Attach to the dishwasher at once.
In addition, since each of the leftover filters is connected so that the first leftover filter is located on the lower side of the second leftover filter, the second leftover filter is generally provided on the upstream side of the wash water flowing from the top to the bottom. However, the first leftover filter is easily disposed on the downstream side.

In the present invention, the first and second filters are detachably arranged, and at least one of the leftover filter is connected to the other leftover filter by the gripping portion so as to be able to contact and separate. ing.
When a user holds a gripping part and removes a plurality of leftover filters from the dishwasher at one time, one of the leftover filters connected to the holding part is Approach the leftover filter. For this reason, a plurality of leftover filters are removed in a compact manner. Moreover, the user separates one of the remaining vegetable filters connected to the gripping part from the other remaining vegetable filters and easily cleans them.

  Furthermore, when the user holds the gripping part and attaches the plurality of leftover filters to the dishwasher at the same time, the plurality of leftover filters are attached in a compact manner as in the case of removing the leftover filter. In addition, the user separates one of the vegetable filters connected to the gripping portion from the other vegetable filters, and arranges them at appropriate positions.

In this invention, the 2nd leftovers filter is distribute | arranged to the side wall inner surface of the washing tank.
The cleaning water sprayed from the cleaning nozzle and the leftovers peeled off from the dishes are scattered on the inner surface of the side wall of the cleaning tank, and mixed with the scattered cleaning water, and the leftovers flow down along the inner surface of the side wall. As described above, the second filter disposed on the inner surface of the side wall of the cleaning tank filters out the leftover vegetables flowing down along the inner surface of the side wall.

In this invention, the door which opens and closes a washing tank is provided in a part of side part of the washing tank, and the 2nd leftovers filter is distribute | arranged to this door.
Since the second leftover filter is arranged in the vicinity of the opening of the washing tank when the door is opened, when the user of the dishwasher removes and cleans the second leftover filter, for example, the washing tank It is not necessary to go to the second side vegetable filter for removal to the back side (that is, a position far from the opening of the cleaning tank).

  In the case of the dishwasher of the present invention, since the leftovers contained in the washing water are filtered by the first and second leftovers filters, the amount of the leftovers filtered by each of the leftovers filters can be reduced. Clogging of the leftover filter can be suppressed, and the filtration efficiency of the washing water by the leftover filter can be improved.

  Further, even when the second leftover filter is clogged, the wash water flows into the first leftover filter, so that the circulation of the wash water is suppressed. For this reason, for example, it is possible to suppress problems such as that the cleaning pump is idled without being able to suck in the cleaning water, and that sufficient cleaning water is not ejected from the cleaning nozzle and the dishes are not sufficiently cleaned.

  Moreover, for example, since a means for automatically changing the position of the leftover filter is not required, the configuration of the dishwasher is simple.

In the case of the dishwasher according to the present invention, by providing a gap between the second vegetable filter and the washing tank, a path through which the washing water flows around the second vegetable filter and flows into the first vegetable filter. Can be provided.
In addition, since almost all or a part of the periphery of each vegetable filter is in contact with the washing tank, the washing water can smoothly flow into the vegetable filter along the washing tank. The leftovers can be easily filtered off.

  In the case of the dishwasher of the present invention, by preventing at least a part of the second leftover filter from being submerged, it is possible to prevent the leftovers filtered by the second leftover filter from flowing out of the second leftover filter. be able to. For this reason, the residual vegetables filtered out by the second residual vegetable filter hardly flow into the first residual vegetable filter. That is, the amount of leftovers filtered out by the first leftover filter can be reduced, clogging of the first leftover filter can be suppressed, the washing water filtration efficiency can be improved, and the washing water can be circulated. Inhibition can be suppressed.

  According to the dishwasher of the present invention, the leftovers can be efficiently filtered by the leftovers filter having a different mesh shape.

  In the case of the dishwasher of the present invention, the leftovers can be efficiently filtered by filtering the wash water containing the leftovers by each of the leftover filters. For example, by arranging each vegetable filter in the lower part of the tableware bowl, both the tableware bowl and each vegetable filter can be provided in a sufficient size without the tableware bowl and each vegetable filter contacting each other.

  In the case of the dishwasher according to the present invention, by holding the gripping part, it is possible to remove a plurality of leftover filters at the same time. Can be installed while being placed.

  In the case of the dishwasher according to the present invention, a plurality of leftover filters can be brought close together and compactly removed at a time. In addition, a plurality of leftover filters can be brought close together and compactly attached at a time, and the plurality of leftover filters can be separated and appropriately arranged.

In the case of the dishwasher according to the present invention, the leftovers scattered on the inner surface of the side wall of the washing tank can be filtered out by the second leftovers filter disposed on the inner surface of the side wall. Since such leftovers are often light and fine leftovers, it is possible to make sure that the second leftovers filter is finely filtered to remove the leftovers.
Since the second leftover filter disposed on the inner surface of the side wall of the cleaning tank is not generally located near the cleaning pump disposed near the bottom of the cleaning tank, even if the second leftover filter is very fine The suction of cleaning water by the cleaning pump is not hindered.

  In the case of the dishwasher according to the present invention, since the second leftover filter is disposed on the door that opens and closes the washing tank, the leftovers attached to the second leftover filter are easy to clean. For this reason, the dishwasher can be easily kept clean. Moreover, the convenience of the user who cleans the 2nd leftovers filter can also be improved.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.

Embodiment 1.
FIG. 1 is a schematic front view of a dishwasher 101 according to Embodiment 1 of the present invention.
2 is a schematic front view of the bottom of the washing tub 12 included in the dishwasher 101, and FIG. 3 is a schematic side view of the same.
The dishwasher 101 in this embodiment has a dishwashing function and a dish drying function.

  As shown in FIG. 1, the dishwasher 101 accommodates the tableware bowl 11 in which the tableware D, D, ... which should be cleaned is mounted, and wash | cleans the tableware D, D, ... placed in the tableware bowl 11. As shown in FIG. A cleaning tank 12 for storing cleaning water is provided inside the housing 10.

Moreover, the dishwasher 101 is provided with washing nozzles 13, 13, 16 in which injection holes for injecting washing water to the dishes D, D,.
The cleaning nozzles 13 and 13 are configured to rotate by the reaction of injection, and are arranged near the bottom of the cleaning tank 12. The tableware bowl 11 is supported on the upper side of the washing nozzles 13 and 13 using a support rail. That is, the cleaning nozzles 13 and 13 inject cleaning water from the lower side of the tableware bowl 11 to the tableware D, D,.
The cleaning nozzle 16 is disposed in the vicinity of the top of the cleaning tank 12 and sprays cleaning water from the upper side of the tableware bowl 11 to the tableware D, D,.

  The dishwasher 101 sucks in the washing water stored in the washing tank 12 and injects the sucked washing water from the spray nozzles of the washing nozzles 13, 13, 16, the heater unit 15, and the dishwasher. 101 is provided with a control device 16 for controlling the operation of each part.

  A part of the bottom of the cleaning tank 12 is concave, and the concave portion is a water storage part 121 for storing cleaning water. As for the internal shape of the water storage part 121, a horizontal cross-sectional shape is a rectangular shape.

Now, the highest water level stored in the washing tank 12 is the highest water level W0 shown in FIGS. 2 and 3, and the highest water level W0 is the water level inside the water storage unit 121. That is, the cleaning water stored in the cleaning tank 12 is mainly stored in the water storage unit 121.
During the operation of the cleaning pump, the cleaning water stored in the water storage unit 121 is continuously sucked and injected from the cleaning nozzles 13, 13, and 16, so that the water level inside the water storage unit 121 decreases to the water level W1. To do. Although the water level W1 is lower than the highest water level W0, it is sufficiently separated from the bottom of the water storage unit 121.

The heater unit 15 is disposed in the water storage unit 121 and heats the cleaning water stored in the water storage unit 121 or the air in the water storage unit 121 in a state where the cleaning water is almost completely drained. And a case that covers the heater and prevents unnecessary contact between the heater and objects other than cleaning water and air (for example, a user's hand).
That is, the heater unit 15 is used for both cleaning and drying of the tableware D, D,... As will be described later.

  The cleaning water heated by the heater unit 15 and having an increased temperature improves the cleaning effect. For this purpose, a water temperature sensor (not shown) is provided in the course of the washing water circulation path as will be described later, and the water temperature is detected. Based on the detected water temperature, the control device 16 determines the heating temperature, heating time, etc. of the heater unit 15. Control.

  As shown in FIGS. 1 and 2, the cleaning pump 14 has a cleaning motor 141 that drives the cleaning pump 14, a suction hose 142 for the cleaning pump 14 to suck cleaning water into the cleaning pump 14, and a suction pump. A discharge hose 143 for discharging the wash water to the wash nozzles 13, 13, 16 via a distribution valve (not shown), and a drain hose 144 for discharging the sucked wash water from the drain port 144 a to the outside of the dishwasher 101. And are connected.

  Either the discharge of the wash water from the discharge hose 143 or the discharge of the wash water from the drain hose 144 is executed by switching the direction of the distribution valve by the control device 16.

A rectangular opening 121 a is formed at the bottom of the water reservoir 121. As shown in FIGS. 1 to 3, a water receiver 122 that receives the cleaning water discharged from the opening 121 a at the bottom of the water storage unit 121 is provided at the bottom of the water storage unit 121. The suction hose 142 is connected.
The internal shape of the water receiver 122 has a rectangular horizontal cross-sectional shape.

  Inside the water receiver 122, there is provided a fixed filter 20 whose peripheral portion is fixed with a screw on the side wall of the water receiver 122 above the connection position of the suction hose 142. The fixed filter 20 has a mesh shape, and the presence of the fixed filter 20 does not hinder the intake of the cleaning water by the cleaning pump 14 and has a coarse mesh necessary and sufficient for filtering out the leftovers.

The fixed filter 20 has a rectangular shape that is substantially the same size as the internal shape of the water receiver 122, and the peripheral edge of the fixed filter 20 is in contact with the side wall of the water receiver 122. The fixed filter 20 is bypassed and does not flow into the suction hose 142.
The fixed filter 20 is completely submerged in the cleaning water in the water receiver 122.

  Further, in the water storage unit 121, a leftover filter 21 that filters the wash water sucked into the wash pump 14 and filters out the leftovers contained in the wash water is disposed on the upper side of the fixed filter 20. Above the filter 21, a leftover filter 22 that filters at least a part of the washing water flowing into the leftover filter 21 is disposed. That is, the leftover filters 21 and 22 are stored in the water storage part 121 of the cleaning tank 12 and sucked into the cleaning pump 14 until being stored in the water storage part 121 of the cleaning tank 12 and sucked into the cleaning pump 14 again. It is arranged in the middle of the circulation path of the wash water.

  Here, the bottom side (water receiver 122 side) of the water storage unit 121 is the downstream side of the circulation path of the wash water, and the top side (tableware bowl 11 side) of the water storage unit 121 is the upstream side. That is, the leftover filter 21 is the first leftover filter, and the second leftover filter 22 is disposed upstream of the position of the leftover filter 21 in the cleaning water circulation path. ing. The leftover filters 21 and 22 are arranged on the downstream side of the arrangement position of the tableware bowl 11 in the washing water circulation path.

  Since the leftover filters 21 and 22 are concentrated in the water storage part 121, they are arranged in a compact manner without coming into contact with the other part of the dishwasher 101 (for example, the dish bowl 11). For this reason, the size of each of the leftover filter 21, 22 and the size of the tableware bowl 11, for example, are provided as large as possible, the filtration area of each of the leftover filter 21, 22 increases, and the tableware bowl 11 Tableware D, D,...

Hereinafter, the leftover filter 21, 22 will be described in more detail.
Each of the leftover filters 21, 22 is made by attaching mesh-shaped filter members 21a, 22a to metal frame members 21b, 22b. The mesh of the leftover filter 21 is finer than that of the fixed filter 20, and the mesh of the leftover filter 22 is finer than that of the leftover filter 21.
That is, the mesh size of each mesh-shaped leftover filter 21 is different from the size of the mesh of the leftover filter 22.
In addition, each of the leftover filters 21 and 22 has a sufficient weight so as not to float in the washing water.

  The leftover filter 21 is a rectangular flat plate having a size larger than the opening 121a at the bottom of the water storage part 121, and the filter member 21a of the leftover filter 21 covers the opening 121a at the bottom of the water storage part 121 almost completely, The frame member 21 b of the leftover filter 21, that is, the peripheral portion of the leftover filter 21 is in contact with the bottom of the water storage unit 121.

  However, unlike the fixed filter 20, the leftover filter 21 is not screwed, and the frame member 21 b of the leftover filter 21 is merely placed on the bottom of the water storage unit 121. For this reason, the leftover filter 21 is easily attached to and detached from the bottom of the water storage unit 121.

Since the leftover filter 21 that is in contact with the bottom of the water storage unit 121 is disposed at a height lower than the water storage unit 121, that is, a position lower than the water level W1, whether or not the cleaning pump 14 is in operation. Regardless, the water is completely submerged in the wash water stored in the water storage unit 121.
Since the leftover filter 21 has a sufficient weight, even if it is placed on the bottom of the water storage unit 121, it does not float on the washing water and does not cause a positional shift.

The leftover filter 22 is a rectangular dish having a slightly larger size than the leftover filter 21, the filter member 22a of the leftover filter 22 corresponds to the bottom of the dish, and the frame member 22b of the leftover filter 22 is the dish. Corresponding to the peripheral edge, the frame member 22b is formed such that its height is higher than that of the filter member 22a.
The filter member 22 a is arranged directly above the filter member 21 a of the leftover filter 21, and three of the four sides of the frame member 22 b, that is, the peripheral portion of the leftover filter 22, are the water storage portion 121. In contact with the side of

More specifically, on the side of the water storage unit 121, a mounting unit 121b on which the leftover filter 22 is to be mounted is provided. The mounting portion 121b is provided so as to protrude to the inside of the water storage portion 121, and is U-shaped in plan view. The leftover filter 22 has three sides of the frame member 22b of the leftover filter 22 so that the remaining side is Like the rape filter 21, it is placed on the placement part 121 b of the water storage part 121 without being screwed. For this reason, the leftover filter 22 is easily attached to and detached from the mounting portion 121 b of the water storage portion 121.
That is, part of the peripheral part of the leftover filter 22 is in contact with the water storage part 121 of the cleaning tank 12, and the remaining part is not in contact with the leftover filter 22.

The mounting part 121b of the water storage part 121 is formed at substantially the same height as the highest water level W0. That is, the frame member 22b which is a part of the leftover filter 22 is placed on the placement part 121b, and thus is disposed at a position higher than the highest water level W0 of the water storage part 121 of the cleaning tank 12.
For this reason, even when washing water is stored in the water storage part 121 up to the maximum water level W0, the frame member 22b is on the water surface. In addition, when the cleaning pump 14 is activated and the water level of the water storage unit 121 is lowered to below the maximum water level W0 (for example, the water level W1), all of the leftover filter 22 (both the filter member 22a and the frame member 22b) It's above.

  Since the leftover filter 22 has a sufficient weight, even if it is only placed on the placement part 121b of the water storage part 121, it will not be floated and washed away in the wash water.

  In addition, each of the leftovers filters 21 and 22 is fixed to a metal plate-shaped gripping portion 23 at a part of the peripheral edge. In other words, the gripping unit 23 connects the leftover filter 21 and 22 such that the leftover filter 21 is located below the leftover filter 22. Further, the gripping unit 23 is gripped by the user of the dishwasher 101 when the left and right vegetable filters 21 and 22 are attached and detached.

Next, the circulation of cleaning water and the filtration of leftovers contained in the cleaning water will be described with reference to FIGS.
In the cleaning process or the rinsing process of the dishes D, D,..., The water supply valve 170 is opened by the control device 16, and tap water as cleaning water is supplied from the water supply port 172 to the cleaning tank 12 through the water supply hose 171. The water is stored in the water storage part 121 of the cleaning tank 12. At this time, the stored water is supplied to the water storage unit 121 until it reaches the maximum water level W0.

  The cleaning water stored in the water storage unit 121 is heated by the heater unit 15. For this reason, the cleaning efficiency of cleaning water is improved. In the cleaning process, a detergent may be mixed in the cleaning water.

Then, the cleaning water stored in the water storage unit 121 passes through the water receiver 122 and the suction hose 142 in this order, and is sucked into the cleaning pump 14 and pressurized, and the cleaning nozzle 13, 13, 16 are sprayed evenly on the inner surface of the washing tub 12, the tableware bowl 11, the tableware D, D,.
The leftovers adhering to the dishes D, D,... Are mixed into the washing water by washing the dishes D, D,..., And the washing water mixed with the leftovers flows out downstream of the tableware bowl 11.

A part of the washing water mixed with the leftovers is filtered by the leftover filter 22 (white arrow A1 in FIGS. 2 and 3), and the leftovers that have been mixed are filtered out by the leftover filter 22.
Since the mesh of the leftover filter 22 is very fine, the washing water filtered by the leftover filter 22 contains almost no leftovers.
The washing water filtered by the leftover filter 22 is filtered by the leftover filter 21 (white arrow A2 in FIGS. 2 and 3), and further filtered by the fixed filter 20, and the water receiver 122 and the suction hose 142. In this order and sucked into the washing pump 14.

The other part of the cleaning water mixed with the leftovers bypasses the leftover filter 22 so as to pass between the peripheral part not contacting the water storage part 121 and the water storage part 121 (see FIG. 3). The white arrow A3) is filtered through the leftover filter 21 (white arrow A2 in FIGS. 2 and 3). The leftovers mixed in the washing water are filtered out by the leftover filter 21.
Since the mesh of the leftover filter 21 is fine, the wash water filtered by the leftover filter 21 contains almost no leftovers.

  The washing water filtered by the leftover filter 21 is further filtered by the stationary filter 20, passes through the water receiver 122 and the suction hose 142 in this order, and is sucked into the washing pump 14.

In this way, since the residue filter 22 having a very fine mesh screen filters the wash water on the upstream side of the washing water circulation path, the amount of the residue that bypasses the residue filter 22 and the residue filter 22 pass. As a result, the amount of leftovers to be filtered out by the leftover filter 21 is reduced, clogging is suppressed, and washing water filtration efficiency is improved.
In addition, since the leftover filter 21 with fine mesh filters the wash water on the upstream side of the washing water circulation path, the amount of the leftovers to be filtered out by the fixed filter 20 is reduced and clogging is suppressed, and the wash water is reduced. The filtration efficiency is improved.

  Even if the leftover filter 22 is clogged, the washing water bypasses the leftover filter 22 and is filtered to the leftover filter 21 and the fixed filter 20, so that the leftovers contained in the washing water are inhaled. Clogging of the hose 142, the cleaning pump 14, the discharge hose 143, the cleaning nozzles 13, 13, 16 and the drain hose 144 is suppressed. Further, it is possible to prevent the leftovers sucked into the washing pump 14 from being finely pulverized by water pressure and further difficult to filter. Furthermore, it is suppressed that the leftovers are discharged outside the dishwasher 101 via the drainage hose 144.

  Further, since the cleaning water is smoothly filtered, it is possible to prevent the cleaning pump 14 from being inhaled without being able to suck the cleaning water due to clogging.

Since the fixed filter 20 and the leftover filter 21 are completely submerged in the washing water, the leftovers filtered off may return to the washing water again. Since they are in contact with each other, it is suppressed that the leftovers flow out to the downstream side.
If the leftover filter 22 is completely submerged, the leftovers filtered off may return to the wash water and bypass the leftover filter 22 and flow out downstream, but in this embodiment, Since at least the peripheral edge of the leftover filter 22 is always on the surface of the water, even if the water level of the washing water is the highest water level W0, the filtered leftovers are prevented from flowing into the washing water.

  After completion of the washing process or rinsing process of the dishes D, D,..., The washing water stored in the water storage unit 121 passes through the water receiver 122 and the suction hose 142 in this order, and the washing pump 14 causes the drain hose 144 to pass through. Through the drainage port 144a to the outside of the dishwasher 101.

After the washing process or the rinsing process of the dishes D, D,..., The dishwasher 101 executes a drying process.
The control device 16 operates a blower fan (not shown) to suck outside air into the water storage unit 121. At this time, the air in the water storage unit 121 is heated by the heater unit 15, and the heated air is blown into the cleaning tank 12, passing through the gaps of the tableware bowl 11, tableware D, D,. 12 is discharged to the outside of the dishwasher 101 through an exhaust port 180 provided at the top.
For this reason, drying of the washed tableware D, D,... Is promoted.

  The user of the dishwasher 101 opens a door (not shown) provided on a part of the side wall of the washing tub 12 and takes out the dishes D, D,... The leftover filters 21 and 22 are removed and the leftovers attached to the leftover filters 21 and 22 and the leftovers attached to the fixed filter 20 are removed. Here, since the leftover filters 21 and 22 filter out most of the leftovers, there is a small amount of leftovers adhering to the fixed filter 20, and cleaning of the fixed filter 20 is easy.

Moreover, cleaning of the leftover filter 21, 22 removed from the dishwasher 101 is easy.
The user grips the cleaned leftover filters 21 and 22 with the gripping part 23 and attaches them to the bottom of the cleaning tank 12. The leftover filters 21 and 22 are fixed to the gripping portion 23 with the leftover filter 22 facing upward, so that the user places the leftover filter 21 on the bottom of the water storage unit 121, so 21 and 22 are easily and accurately arranged.

The dishwasher 101 as described above can set the total filtration area to the maximum at a limited filter installation location by providing the plurality of leftover filters 21 and 22 in the dishwasher 101. For this reason, in the washing step and the rinsing step, it is possible to suppress the deterioration of the washing performance due to the clogging of the washing water from being blocked and the insufficient filtration of the washing water.
That is, since the dishwasher 101 is improved in the filtration function of washing water and the washing performance of the dishes D, D,..., The reliability of the dishwasher 101 can be improved.

  In addition, since each of the leftover filter 21, 22 is a separate body, the shape, mesh size, material, etc. of the leftover filter 21, 22 are selected according to the desired filtration capacity, the respective installation location, etc. The That is, the degree of freedom in design is improved.

  The leftover filter may be three or more instead of two. In this case, for example, it may be possible to provide another vegetable filter 22 in a staggered arrangement with the vegetable filter 22.

Embodiment 2. FIG.
FIG. 4 is a schematic perspective view of the bottom of the washing tub 12 provided in the dishwasher 102 according to Embodiment 2 of the present invention.
FIG. 5 is a schematic side view of the leftover filter 31, 32 provided in the dishwasher 102.

  The dishwasher 102 according to the present embodiment has substantially the same configuration as the dishwasher 101 according to the first embodiment. In the following, parts of the dishwasher 102 different from the dishwasher 101 will be mainly described, and other parts corresponding to those of the first embodiment are denoted by the same reference numerals and description thereof will be omitted.

  The dishwasher 102 includes leftover filters 31 and 32 in the water storage unit 121 instead of the leftover filters 21 and 22 of the first embodiment. The leftover filter 31 is a first leftover filter, like the leftover filter 21, and the leftover filter 32 is a second leftover filter, like the leftover filter 22.

  Each of the leftover filter 31 and 32 is formed by attaching mesh-shaped filter members 31b and 32b to metal frame members 31a and 32a. The mesh of the leftover filter 31 is finer than that of the fixed filter 20, and the mesh of the leftover filter 32 is finer than that of the leftover filter 31.

Moreover, each of the leftover filter 31, 32 is connected to the holding part 33 via the rotating shaft part 34, and the total weight of the connected leftover filter 31, 32 and the holding part 33 is determined in the washing water. It has enough weight so that it does not rise.
Specifically, the gripping portion 33 has a rectangular plate shape in which one side portion is formed in an expanded shape so that a user of the dishwasher 102 can easily grip it, and the other side portion facing this one side portion is The rotation shaft 34 is fixed to the rotation shaft 34 along the axial length direction.

Further, one side portion of the frame member 31 a of the leftover filter 31 is fixed to the rotation shaft portion 34 along the axial length direction of the rotation shaft portion 34 at a predetermined angle from the gripping portion 33.
In the leftover filter 32, one side portion of the frame member 32 a of the leftover filter 32 is between the leftover filter 31 fixed to the rotary shaft portion 34 and the gripping portion 33, and the axial direction of the rotary shaft portion 34. The hinge shaft 34 is hinged to the rotary shaft 34.
For this reason, the leftover filter 32 is rotatable with respect to the leftover filter 31 in the contact / separation direction (the arrow direction in FIG. 5).

By rotating the leftover filter 32, the leftover filter 32 overlaps with the leftover filter 31, and the leftover filter 31, 32 is compactly packed (closed).
The length of the leftover filter 31 in the direction of the rotation shaft 34 is shorter than the length of the leftover filter 32 in the direction of the rotation shaft 34.

  As shown in FIG. 4, the gripping portion 33 is arranged along the inner wall surface of the water storage unit 121 and the inner wall surface of the cleaning tank 12. The leftover filter 32 is substantially the same size as the leftover filter 22 of the first embodiment, and is placed on a placement portion 121b as shown in FIGS. At this time, the closed vegetable filters 31, 32 are opened by rotating the vegetable filter 32 in a direction away from the vegetable filter 31. And as shown in FIG. 4, the angle of the leftover filter 32 and the holding part 33 will be about 90 degrees.

  Since the length of the leftover filter 31 in the direction of the rotation shaft 34 is shorter than the length of the leftover filter 32 in the direction of the rotation shaft 34, the length of the leftover filter 31 enters the bottom of the water storage unit 121 without being locked to the mounting portion 121 b. .

  Here, with respect to the leftover filter 32, one side portion hinged to the rotation shaft portion 34, two sides continuous to the one side portion, and the rotation shaft portion 34 are connected to the water storage portion 121 (specifically, the placement portion). Part 121b). Further, with respect to the leftover filter 32, the other side opposite to the one side hinged to the rotating shaft 34 is not in contact with the water storage unit 121, and thus the washing tank 12, and the washing water It is possible to bypass the leftover filter 32 from the side and flow downstream.

  In addition, the side vegetable filter 31 has one side fixed to the rotating shaft portion 34 disposed at substantially the same position as the position of the side vegetable filter 32, and the other side opposite to the one side portion is the water storage portion 121. Arranged at the bottom. For this reason, the leftover filter 31 is disposed in an inclined manner in the water reservoir 121. The predetermined angle is designed according to the inclination angle of the leftover filter 31 arranged in the water storage unit 121.

  Of course, the filter member 31 b of the leftover filter 31 substantially completely covers the opening 121 a at the bottom of the water storage unit 121, and the frame member 31 a of the leftover filter 31, that is, the peripheral portion of the leftover filter 31 is the water storage unit 121. To touch. For this reason, it is suppressed that wash water flows in the downstream side bypassing the leftover filter 31.

The user of the dishwasher 102 opens a door (not shown) provided on a part of the side wall of the washing tub 12 and takes out the dishes D, D,... Hold and remove the leftover filter 31, 32. At this time, the leftover filter 32 rotates in a direction approaching the leftover filter 31 and overlaps with the leftover filter 31, so that the leftover filter 31, 32 becomes compact.
For this reason, the user can easily take out the leftover filter 31, 32 from the inside of the dishwasher 102. For the same reason, the user can easily install the leftover filter 31, 32 in the dishwasher 102.

  The user holds the cleaned leftover filter 31, 32 by holding the holding part 33 and attaching it to the bottom of the cleaning tank 12. At this time, the leftover filter 32 rotates in a direction away from the leftover filter 31, and the leftover filter 31, 32 is easily and accurately disposed at a predetermined position.

  In the dishwasher 102 as described above, the workability of attaching and detaching the leftover filter 31, 32 is improved.

  The coupling structure between the leftover filter 32 and the rotating shaft 34 is not limited to hinge coupling. Further, the leftover filter 31 and / or the gripping portion 33 may also be provided so as to be rotatable about the rotation shaft portion 34.

Embodiment 3. FIG.
FIG. 6 is a schematic side view of the dishwasher 103 according to Embodiment 3 of the present invention.
The dishwasher 103 according to the present embodiment has substantially the same configuration as the dishwasher 101 according to the first embodiment. In the following, parts of the dishwasher 103 different from the dishwasher 101 will be mainly described, and other parts corresponding to the first embodiment are denoted by the same reference numerals and description thereof will be omitted.

A door 19 for opening and closing the cleaning tank 12 is provided at a part of the side of the cleaning tank 12, specifically, at the front part. The door 19 may have a structure that can be opened and closed in a vertical sliding manner, or a structure that can be opened by tilting the upper part toward the front with the lower part as a rotation center.
The dishwasher 103 includes another second leftovers in addition to the leftover filters 21 and 22, which are first and second leftover filters substantially the same as the leftover filters 21 and 22 included in the dishwasher 101. A leftover filter 24 is provided as a filter.

The leftover filter 24 is a rectangular plate having a length substantially equal to the horizontal length of the door 19 and a concave direction in the short direction, and the longitudinal direction is horizontal to the inner side of the door 19. It is detachable along the direction.
One side in the longitudinal direction of the leftover filter 24 is in contact with the inner surface of the door 19, and three sides other than this one side are not in contact with the cleaning tank 12 including the door 19.
The arrangement height of the leftover filter 24 is a position lower than the arrangement height of the tableware bowl 11, more preferably a position lower than the arrangement height of the cleaning nozzles 13 and 13. That is, it is downstream of the arrangement position of the tableware bowl 11 in the washing water circulation path.

The mesh size of the leftover filter 24 is finer than the mesh size of the leftover filter 22.
Moreover, since the leftover filter 24 is arranged outside the water storage unit 121, the whole of the leftover filter 24 is arranged at a position higher than the maximum water level W 0, and the wash water stored in the water storage unit 121 is used. Never submerge.

Such a leftover filter 24 is arranged on the upstream side of the position where the leftover filters 21 and 22 are disposed in the circulation path of the washing water, and specifically, a part of the washing water flowing into the leftover filters 21 and 22, specifically, Is blown off to the inner surface of the door 19 to filter the wash water that has flowed down along the inner surface of the door 19 and filters out the remaining vegetables contained in the wash water.
For this reason, the residual vegetables which the residual filter 21 and 22 should filter off are further reduced.
The leftovers filtered by the leftover filter 24 are prevented from flowing out of the leftover filter 24 because the leftover filter 24 is not submerged at all.

In addition, light and fine leftovers blown to the inner surface of the door 19 are surely filtered out by the leftover filter 24 to prevent such leftovers from being sucked into the cleaning pump 14.
Here, since the arrangement position of the leftover filter 24 is sufficiently separated from the suction port of the suction hose 142 of the cleaning pump 14, the leftover filter 24 having a fine filter does not hinder the suction of the cleaning water. .

  The user of the dishwasher 103 opens the door 19 and easily removes the leftover filter 24 after cleaning of the dishes D, D,..., And drying, and cleans the leftover filter 24. Then, the cleaned leftover filter 24 is easily attached to the door 19.

By the way, the control device 16 operates the blower fan 18 in the drying process, sucks outside air from an inlet (not shown), and heats the heater 15 while blowing into the cleaning tank 12 through the blower ducts 181 and 182. . The heated outside air passes through gaps such as the tableware bowl 11 and the tableware D, D,..., And is discharged to the outside of the dishwasher 103 from an exhaust port 180 provided in the upper part of the washing tank 12.
For this reason, drying of the washed tableware D, D,... Is promoted.

  The dishwasher 103 as described above is provided with the three remaining vegetable filters 21, 22, and 24, thereby further improving the filtration efficiency of the cleaning water, and cleaning water due to clogging of the remaining vegetable filters 21, 22, and 24. This further suppresses the inhibition of circulation.

  Although the leftover filter 24 may be provided on the inner surface of the side wall of the cleaning tank 12 other than the door 19, it is easier to remove the leftover filter 24 if it is provided on the door 19. Further, generally, other members such as the tableware bowl 11 and the washing nozzles 13, 13, 16 are not arranged near the inner surface of the door 19, so that the leftover filter 24 can be installed in a wide range. For this reason, it becomes possible to increase the filtration area of the leftover filter 24 and filter a large amount of leftovers.

Moreover, you may provide a 2nd leftovers filter in places other than the washing tank 12, for example, the tableware bowl 11. FIG. In this case, it is desirable that at least a part of the peripheral edge of the leftover filter comes into contact with the tableware bowl 11.
However, it is necessary to install it at a position that does not hinder the injection of cleaning water from the cleaning nozzles 13, 13, 16; for example, a position that prevents the cleaning water from reaching the dishes D, D,. Therefore, it is not installed at a position where the leftovers filtered by the leftover filter are blown out of the leftover filter.

  Furthermore, only the leftover filter 21, 24 may be provided, and the leftover filter 22 may not be provided.

It is a schematic front view of the dishwasher according to Embodiment 1 of the present invention. It is a schematic front view of the washing tank bottom part with which the dishwasher concerning Embodiment 1 of the present invention is provided. It is a schematic side view of the washing tank bottom part with which the dishwasher which concerns on Embodiment 1 of this invention is provided. It is a schematic perspective view of the washing tank bottom part with which the dishwasher which concerns on Embodiment 2 of this invention is provided. It is a schematic side view of the leftover filter provided in the dishwasher according to Embodiment 2 of the present invention. It is a schematic side view of the dishwasher according to Embodiment 3 of the present invention. It is a schematic front view of the washing tank bottom part with which the conventional dishwasher is provided. It is a schematic side view of the washing tank bottom part with which the conventional dishwasher is equipped.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101,102,103 Dishwasher 11 Tableware bowl 12 Washing tank 13 Washing nozzle 14 Washing pump 19 Door 21,31 Leftover filter (1st leftover filter)
22, 32, 24 Vegetable filter (second vegetable filter)
23,33 Holding part 34 Rotating shaft part D Tableware W0 Highest water level

Claims (9)

A tableware bowl where the tableware to be cleaned is placed;
A washing tub for storing the tableware bowl and storing washing water for washing the tableware placed on the tableware bowl;
A cleaning nozzle in which an injection port for injecting the cleaning water into the tableware is formed;
A cleaning pump for inhaling the cleaning water stored in the cleaning tank, and for injecting the inhaled cleaning water from the injection port;
The water is distributed in the cleaning water circulation path from being stored in the cleaning tank and sucked into the cleaning pump to being stored again in the cleaning tank and then sucked into the cleaning pump, and then sucked into the cleaning pump. A dishwasher comprising: a first leftover filter for filtering wash water;
A second leftover filter that is disposed upstream of the position of the first leftover filter in the circulation path and that filters at least a portion of the wash water flowing into the first leftover filter; Dishwasher featuring. In the first left vegetable filter, substantially the entire periphery of the left vegetable filter is in contact with the washing tank,
2. The dishwasher according to claim 1, wherein a part of the peripheral part of the second vegetable filter is in contact with the washing tank and the remaining part is not in contact with the second vegetable filter.   The dishwasher according to claim 1 or 2, wherein at least a part of the second left vegetable filter is disposed at a position higher than a maximum water level of the cleaning water stored in the cleaning tank. Each vegetable filter has a mesh shape,
The dishwasher according to any one of claims 1 to 3, wherein an eye size of the first leftover filter is different from an eye size of the second leftover filter.   The dishwasher according to any one of claims 1 to 4, wherein each of the leftover filters is arranged on a downstream side of the arrangement position of the tableware basket in the circulation path. Each vegetable filter is detachably arranged,
Each vegetable filter is connected so that the first vegetable filter is on the lower side of the second vegetable filter, and a gripping portion is provided for gripping when the vegetable filter is attached or detached. The dishwasher according to any one of claims 1 to 5, characterized in that   The at least one leftover filter out of the remaining vegetable filters connected to the gripping part is provided so as to be able to contact and separate from other remaining vegetable filters. dishwasher.   The dishwasher according to any one of claims 1 to 5, wherein the second leftover filter is disposed on an inner surface of a side wall of the washing tank. A door for opening and closing the cleaning tank is provided on a part of the side wall of the cleaning tank;
The dishwasher according to claim 8, wherein the second leftover filter is arranged on an inner surface of the door.

Images