JP2019080601A - dishwasher - Google Patents

Abstract

To provide a dishwasher with a high washing performance which can supply sufficient washing water to a large washed object such as a pan.SOLUTION: The dishwasher comprises: a main body 1; a washing water tank 2 provided inside the main body 1; an upper dish basket 7 and a lower dish basket 8 arranged inside the washing water tank 2 to store washed objects 6 such as tableware; a washing water pump 22 for circulating washing water stored in the washing water tank 2; washing water nozzles installed rotatably in a lower part of the washing water tank 2; and a water channel such as a second horizontal section 16c provided on a side of the washing water tank 2, and a water channel exit 16d. Any of a plurality of washing water nozzles of which jetting forms are different from one another is provided in at least one water channel exit 16d, and the plurality of washing water nozzles can be switched such that washing water is jetted from any of the washing water nozzles.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a dishwasher for cleaning an object to be cleaned such as tableware stored in a cleaning tank, and more particularly to a configuration of a cleaning nozzle.

  As a conventional dishwasher, a dishwashing cabinet having two upper and lower stages was provided, and a rotary washing nozzle was disposed between the upper dishwashing basket and the lower dishwashing basket in order to improve the washing effect of the objects to be washed stored in the upper dishwashing basket. Dishwashers have been proposed (see, for example, Patent Documents 1 and 2).

  However, in the dishwasher of the above configuration, when the large dishes such as platters and the large cooking utensils such as pans are accommodated and cleaned, the rotary washing nozzle disposed between the upper dishes and the lower dishes basket becomes an obstacle. It can not accommodate large items to be cleaned.

  In order to solve this problem, in the dishwasher described in Patent Document 1, the rotary washing nozzle disposed between the upper tableware basket and the lower tableware basket is disposed along the back inner wall of the cleaning tank. It is detachably connected to the fixed cleaning nozzle. When a large item to be cleaned is to be stored, the rotary washing nozzle disposed between the upper and lower dishes and the lower dish cage is removed to secure a storage space. The connection of the fixed washing nozzle from which the rotary washing nozzle disposed between the upper tableware basket and the lower tableware basket has been removed is closed watertight by the lid.

  Moreover, the dishwasher described in Patent Document 2 is connected to a fixed cleaning nozzle in which a rotary cleaning nozzle disposed between the upper tableware basket and the lower tableware basket is disposed along the back inner wall of the cleaning tank. It is configured to be pivotable upward by the unit. When a large item to be cleaned is accommodated, the rotary cleaning nozzle disposed between the upper tableware basket and the lower tableware cage is pivoted upward to avoid it on the back inner wall side of the cleaning tank. Secure a storage space.

JP 2007-282831 A JP 2008-104480 A

  However, in the configuration of the conventional dishwasher disclosed in Patent Document 1 and Patent Document 2 above, when a large item to be cleaned is accommodated, a cleaning nozzle for jetting cleaning water is disposed behind the large item to be cleaned accommodated. not exist. Therefore, the cleaning of large objects to be cleaned mainly relies on the cleaning nozzle disposed below the cleaning tank, and in particular the sprayed cleaning water does not reach the inner surface of the object to be cleaned, so that sufficient cleaning performance is achieved. It had the subject that it could not obtain.

  The present invention solves the above-mentioned conventional problems, and it is possible to switch the cleaning nozzle appropriately for the objects to be cleaned stored in the upper and lower dish cages, to perform effective cleaning according to the objects to be cleaned, and It is an object of the present invention to provide a dishwasher having high cleaning performance which can supply sufficient washing water even to large objects to be cleaned such as large dishes and large cooking utensils such as pots.

In order to achieve the above object, the dishwasher according to the present invention is a main body, a cleaning tank provided in the main body, and a dish which is disposed in the cleaning tank and in which the object to be cleaned is accommodated; A washing pump for circulating washing water stored in a washing tank, a water conduit provided in the washing tank and a water conduit outlet, and a washing nozzle for jetting washing water, at least one of the water conduit outlets One of a plurality of cleaning nozzles having different injection modes is provided, and is switchable so that cleaning water can be jetted from any of the plurality of cleaning nozzles. With this configuration, the cleaning nozzle can be switched appropriately for the object to be cleaned stored in the tableware basket, and effective cleaning can be performed according to the object to be cleaned, and large dishes such as large dishes such as large dishes, pots, etc. It is possible to provide a dishwasher with high cleaning performance, which can supply sufficient washing water even to large objects to be cleaned.

  The dishwasher according to the present invention appropriately switches the cleaning nozzle to the object to be cleaned accommodated in the dish basket, and can perform effective cleaning according to the object to be cleaned, as well as large dishes such as large dishes and large pots and the like. It is possible to provide a dishwasher with high cleaning performance that can supply sufficient cleaning water even to large objects to be cleaned such as cooking utensils.

The front appearance perspective view in the state where the upper door of a dishwasher and the lower door were opened in Embodiment 1 of the present invention Rear appearance perspective view of a dishwasher according to Embodiment 1 of the present invention Front view of a dishwasher according to Embodiment 1 of the present invention Principal part front sectional view of dishwasher in Embodiment 1 of the present invention Side wall sectional view in a state where the upper door and the lower door of the dishwasher are closed according to the first embodiment of the present invention Side view of the state in which the upper door and the lower door of the dishwasher in the first embodiment of the present invention are opened The perspective view which shows the structure of the upper dish cage of the dishwasher in Embodiment 1 of this invention. The perspective view which shows the structure of the lower dish cage of the dishwasher in Embodiment 1 of this invention. Top cross-sectional view showing the configuration of the water reservoir and the drainage port of the washing tank of the dishwasher in accordance with the first embodiment of the present invention The top sectional view in the state where the sump part lid was removed which shows the composition of the sump part and drainage mouth of the washing tub of the dishwasher in Embodiment 1 of the present invention 9. The AA cross-section perspective view of FIG. 9 which shows the structure of the water storage part and drain port of the washing tank of the dishwasher in Embodiment 1 of this invention An exploded perspective view of a portion related to a remnant filter of a dishwasher according to Embodiment 1 of the present invention BB cross-sectional view of FIG. 9 showing the flow of cleaning water filter and drain water around the washing and rinsing operations of the dishwasher in the first embodiment of the present invention CC cross-sectional perspective view of FIG. 9 which shows the flow of the refuse filter and drain water around the drainage port at the time of the drainage operation of the dishwasher in Embodiment 1 of this invention (A) Front sectional view showing the third rotary washing nozzle of the dishwasher according to the first embodiment of the present invention attached (b) Main part perspective view showing the third rotary washing nozzle attached (A) Front sectional view showing the state in which the third rotary washing nozzle of the dishwasher in the first embodiment of the present invention is removed (b) Main part perspective view showing the state in which the third rotary washing nozzle is removed Cross-sectional view of the connection portion between the rotary washing nozzle water conduit and the water conduit outlet of the third rotary washing nozzle of the dishwasher in the first embodiment of the present invention (A) Illustration of removal of the third rotary washing nozzle of the dishwasher in the first embodiment of the present invention from the water conduit outlet (b) Third rotary washing nozzle of the dishwasher in the first embodiment of the present invention Of the installation to the headrace outlet of The longitudinal cross-sectional view of the connection part of the rotary washing nozzle water conduit and the water conduit outlet of the 3rd rotary washing nozzle of the dishwasher in Embodiment 1 of this invention The principal part perspective view which shows the fixed washing nozzle of the dishwasher in Embodiment 1 of this invention Explanatory drawing which shows the use condition in the state from which the upper dish cage and 3rd rotary washing nozzle of the dishwasher in Embodiment 1 of this invention were removed. Explanatory drawing which shows the use condition in the state from which the 3rd rotary washing nozzle of the dishwasher in Embodiment 1 of this invention was removed. The principal part perspective view which shows the fixed washing nozzle of the dishwasher in Embodiment 2 of this invention Front sectional drawing which shows the state in which the vertical rotation washing nozzle of the dishwasher in Embodiment 3 of this invention was attached.

  A dishwasher according to a first aspect of the present invention is provided in a main body, a cleaning tank provided in the main body, and the cleaning tank, and the dishes for storing the objects to be cleaned are stored in the cleaning tank. A plurality of washing pumps for circulating washing water, a water conduit provided in the washing tank and a water conduit outlet, and a washing nozzle for jetting washing water, wherein at least one of the water conduit outlets has different injection modes. One of the cleaning nozzles is provided, and is switchable so that the cleaning water can be jetted from any of the plurality of cleaning nozzles.

  With this configuration, the cleaning nozzle can be switched appropriately for the objects to be cleaned stored in the tableware cage at at least one water conduit outlet, and effective cleaning can be performed according to the objects to be cleaned. It is possible to provide a dishwasher having high cleaning performance that can sufficiently supply cleaning water to large objects to be cleaned such as large cooking utensils such as pots and the like.

  A dishwasher according to a second aspect of the present invention is provided in a main body, a cleaning tank provided in the main body, and the dish, in which the object to be cleaned is accommodated, disposed in the cleaning tank, and in the cleaning tank. A water conduit and a water conduit outlet, a washing nozzle communicating with the water conduit outlet via a washing nozzle water conduit, and a washing pump for feeding washing water stored in the washing tank to the washing nozzle, the washing The nozzle water conduit is configured to be removable from the water conduit outlet.

  With this configuration, the cleaning nozzle can be switched appropriately for the object to be cleaned stored in the tableware basket, and effective cleaning can be performed according to the object to be cleaned, and large dishes such as large dishes such as large dishes, pots, etc. It is possible to provide a dishwasher with high cleaning performance, which can supply sufficient washing water even to large objects to be cleaned.

  According to a third invention, in particular, in the second invention, a fixed cleaning nozzle is provided at the water conduit outlet, and the cleaning nozzle water conduit is detachably attached to the water conduit outlet so as to cover the fixed cleaning nozzle. It is constructed. According to this configuration, it is possible to switch to a different washing nozzle by a simple operation of attaching and detaching the washing nozzle water conduit, and it is possible to provide a convenient-use dishwasher while having a high washing effect.

  According to a fourth invention, in particular, in any of the first to third inventions, the cleaning nozzle is a fixed cleaning nozzle to which an injection port is fixed or a rotary cleaning nozzle on which the injection port rotates. According to this configuration, a high cleaning effect can be obtained by switching to an appropriate form of the cleaning nozzle in accordance with the object to be cleaned stored in the tableware basket.

  According to a fifth invention, in particular, in the fourth invention, the rotary cleaning nozzle has a rotatable arm portion having a plurality of injection holes on the upper surface at the tip of the cleaning nozzle water conduit, the water conduit A fixed cleaning nozzle is provided at an outlet, and the cleaning nozzle water conduit is configured to be removable from the water conduit outlet so as to cover the fixed cleaning nozzle. By this configuration, it is possible to switch to the rotary washing nozzle or the fixed washing nozzle by a simple operation of attaching and detaching the washing nozzle water conduit, and it is possible to provide a convenient-use dishwasher while having a high washing effect.

  According to a sixth invention, in particular, in any of the third to fifth inventions, the fixed cleaning nozzle is formed to disperse and spray the cleaning water in a predetermined direction. According to this configuration, the washing water can be sprayed widely and evenly, and the objects to be washed widely contained in the washing tank can be effectively washed.

  According to a seventh invention, in particular, according to the sixth invention, the fixed cleaning nozzle is constituted by a plurality of injection holes disposed circumferentially, and radiates the cleaning water radially, and the circumferential And a forward injection hole for injecting wash water forward. With this configuration, the washing water can be sprayed widely and evenly, and the objects stored in the washing tank can be effectively washed, and concentrated toward the deep pot and bowl housed forward. The washing water can be strongly sprayed and the washing can be performed effectively.

  According to an eighth invention, in particular, in any of the second to seventh inventions, the cleaning nozzle water conduit is configured to be linearly removable in the horizontal direction. With this configuration, the user can remove and mount the rotary washing nozzle even in a state where the tableware cage is stored in the washing tank, and a user-friendly dishwasher can be provided.

  According to a ninth invention, in particular, in any one of the second to eighth inventions, in a state where the cleaning nozzle water conduit is attached to the water conduit outlet, both the cleaning nozzle water conduit and the water conduit outlet are provided. The wall surface provided is configured to be watertight by forming a labyrinth structure. With this configuration, water tightness is realized without using a seal member such as an O-ring which is a consumable part, whereby the water tightness between the frequently-dismounted and installed cleaning nozzle water conduit and the water conduit outlet is extended for a long time. It can be maintained stably.

  According to a tenth invention, in particular, in any one of the first to ninth inventions, the tableware cage provided above the water conduit outlet can be moved up and down to adjust its height position. It is. With this configuration, a large cooking appliance can be accommodated, and the upper tableware basket can also be used, which is more convenient.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

Embodiment 1
FIG. 1 is a front appearance perspective view of a state in which the upper door and the lower door of the dishwasher in the first embodiment of the present invention are opened. FIG. 2 is a back appearance perspective view of the dishwasher in the first embodiment of the present invention. FIG. 3 is a front view of the dishwasher in accordance with the first exemplary embodiment of the present invention. FIG. 4 is a front cross-sectional view of the main part of the dishwasher in the first embodiment of the present invention. FIG. 5 is a cross-sectional view of a side wall in a state where the upper door and the lower door of the dishwasher in the first embodiment of the present invention are closed. FIG. 6 is a side view of the state in which the upper door and the lower door of the dishwasher in the first embodiment of the present invention are opened. FIG. 7 is a perspective view showing the configuration of the upper dishwasher in the dishwasher in accordance with the first embodiment of the present invention. FIG. 8 is a perspective view showing the configuration of the lower dish basket of the dishwasher in accordance with the first exemplary embodiment of the present invention.

  As shown in FIGS. 1 to 6, a resin washing tank 2 is provided inside the main body 1 of the dishwasher. At the front of the cleaning tank 2, an opening 3 is provided for taking in and out an object to be cleaned 6 such as tableware. The upper and lower portions of the opening 3 are configured to be opened and closed by the upper door 4 and the lower door 5, respectively.

  A seal member 9 made of an elastic material such as silicone rubber is attached to the front of the periphery of the opening 3. An opening is formed by the sealing member 9, an upper door seal receiving portion (not shown) provided on the upper door 4, and a lower door seal receiving portion (not shown) provided on the lower door 5. The seal part of 3 is comprised. An inter-door seal member 68 (not shown) is attached to the lower end of the upper door 4, and when the upper door 4 and the lower door 5 are closed, the lower end of the upper door 4 and The sealability between the lower door 5 and the upper end portion of the lower door 5 is secured.

  The upper door 4 and the lower door 5 are interlocked and rotated by a pair of door opening and closing mechanisms 10 provided on the left and right outer side walls of the cleaning tank 2 to be opened and closed. The upper door 4 and the lower door 5 are configured to be opened downward to the front side of the opening 3 to a position where the inner surface is substantially horizontal and upward. The upper door 4 and the lower door 5 are positioned such that the upper door 4 overlaps the lower door 5 when the upper door 4 and the lower door 5 are opened.

  A door open button 11 is provided on the front of the lower door 5. A door lock device 12 is provided on the outer wall of the cleaning tank 2 to lock the cleaning tank 2 in a state where the upper door 4 and the lower door 5 are closed to the opening 3. When the user depresses the door open button 11, the lock of the door lock device 12 is released, the lower door 5 is slightly rotated about the lower end, and the upper end is the degree to which the user's finger is hooked It is configured to be opened forward. The upper door 4 and the lower door 5 may be opened to the open state automatically by the biasing force in the opening direction.

  An operation display unit 13 is provided on the front surface of the lower door 5. The operation display unit 13 is electrically connected to a control unit (not shown) that controls the operation of the dishwasher, and exchanges information regarding the operation with the control unit. The control unit controls the washing process, the rinsing process and the drying process, and executes the washing operation of the object 6 to be cleaned. The user operates the operation display unit 13 and inputs conditions such as the time and number of times of operation course selection and washing, rinsing, and drying. Further, the user can confirm the selected driving course and driving situation by the information displayed on the operation display unit 13.

  An upper tableware basket 7 and a lower tableware basket 8 in which the objects to be cleaned 6 such as dishes are set are stored in the cleaning tank 2. The upper dish cage 7 and the lower dish cage 8 can be individually moved in the front-rear direction by upper dish cage guide rails 71 and lower dish cage guide rails 81 provided on the left and right inner side surfaces 2a and 2b of the washing tank 2, respectively. It is supported by The upper tableware cage 7 and the lower tableware cage 8 can be pulled forward from the opening 3 on the front surface of the washing tank 2 when the upper door 4 and the lower door 5 are opened. Also, the upper dish cage 7 and the lower dish cage 8 are removable from the upper dish cage guide rail 71 and the lower dish cage guide rail 81, respectively. In the present embodiment, the tableware basket is configured in two stages, the upper and lower stages, but is not limited to this, and may be one stage or three or more stages.

  As shown in FIG. 7, the upper tableware cage 7 is mounted on the upper tableware cage main body 77, a first set cage 78 mounted on the left side of the upper tableware cage main body 77, and the right side of the upper tableware cage main body 77. A second set car 79 is disposed, and side members 73 fixed to the left and right of the upper dish cage main body 77. Although the first set cage 78 is removable, it is usually used by being attached to the upper cupboard main body 77.

  As shown in FIG. 8, the lower tableware cage 8 includes a lower tableware basket body 87, a third set cage 88 placed on the left side of the lower tableware basket body 87, and a slightly rightward center of the lower tableware cage body 87. And a side member 83 fixed to the left and right of the lower tableware cage main body 87. Although the third set cage 88 is removable, it is usually used by being attached to the lower cupboard main body 87.

  A water supply unit for supplying washing water to the inside of the washing tank 2 is provided. The water supply unit includes a water supply valve (not shown) provided in the main body 1, an internal water supply pipe connecting the water supply valve and the cleaning tank 2, and a water supply hose 96 connecting the water supply valve and the tap water pipe. It is done. The control unit controls the water supply valve based on information from a water level sensor (not shown) in communication with the inside of the cleaning tank 2 and a predetermined amount of cleaning water is supplied to the inside of the cleaning tank 2 in the cleaning step and the rinsing step. Supply.

  As shown in FIG. 4, at the lower portion in the cleaning tank 2, a first rotary cleaning nozzle 14 and a second rotary cleaning nozzle 15 for jetting the cleaning water from the plurality of injection holes are disposed. The cleaning nozzle provided at the lower part is not limited to the rotary cleaning nozzle, and may be a fixed cleaning nozzle. At the back of the inside of the washing tank 2, a substantially cross-shaped water channel 16 is disposed along the inner wall of the washing tank 2. The water conduit 16 is formed in a flat cylindrical shape, and secures a wide interior space of the cleaning tank 2. In the first embodiment, the water conduit 16 is provided inside the cleaning tank 2, but may be provided outside.

  At the upper part of the water conduit 16, a vertical portion 16a for injecting the washing water from the plurality of injection holes is extended. At a height lower than the upper table cage 7, a first horizontal portion 16b having a plurality of injection holes is extended on the right side of the water conduit 16. A second horizontal portion 16 c is extended to the left of the water conduit 16 at a height lower than that of the upper table cage 7. The vertical portion 16a, the first horizontal portion 16b and the second horizontal portion 16c are water conduits for guiding the washing water pressure-fed by the washing pump 22 to a plurality of injection holes respectively provided. A water dividing portion (not shown) is provided, and the water conduit 16 includes a water conduit 16R for guiding the washing water to the vertical portion 16a and the first horizontal portion 16b, and a water guiding member for guiding the washing water to the second horizontal portion 16c. And the water channel 16L.

  At the tip of the second horizontal portion 16c, a water conduit outlet 16d is provided. In this one water conduit outlet 16d, at least one of a plurality of washing nozzles having different injection modes is provided, and it is configured to be switchable so that washing water can be jetted from any of the plurality of washing nozzles. In the present embodiment, the case where the rotary cleaning nozzle and the fixed cleaning nozzle are configured to be switchable will be described below as an example.

  The third rotary cleaning nozzle 17 is connected in communication with the water conduit outlet 16 d. The third rotary cleaning nozzle 17 has a cylindrical cleaning nozzle water conduit 17a extending forward and a rotatable arm 17b provided at the tip of the cleaning nozzle water conduit 17a. The third rotary washing nozzle 17 is disposed on the lower left side of the upper tableware cage 7. The arm portion 17b of the third rotary washing nozzle 17 has a plurality of injection holes for jetting washing water on its upper surface, and rotates from immediately below to the object to be cleaned 6 accommodated on the left side of the upper tableware cage 7. While spraying the washing water.

The third rotary cleaning nozzle 17 is detachably connected to the water conduit outlet 16 d via the cleaning nozzle water conduit 17 a. The cleaning nozzle conduit 17a can be removed from the conduit outlet 16d by unlocking the locking portion 17c provided on the base. A fixed cleaning nozzle 61 is provided at the water conduit outlet 16 d after the third rotary cleaning nozzle 17 is removed (not shown in FIG. 4, see FIG. 16). By removing the third rotary washing nozzle 17 from the water conduit outlet 16 d, the nozzle capable of jetting washing water is switched from the third rotary washing nozzle 17 to the fixed washing nozzle 61. Conversely, by attaching the cleaning nozzle conduit 17 a to the conduit outlet 16 d so as to cover the fixed cleaning nozzle 61, the nozzle that can eject the cleaning water can move from the fixed cleaning nozzle 61 to the third rotary cleaning nozzle 17. It is switched.

  The first rotary cleaning nozzle 14, the second rotary cleaning nozzle 15, a plurality of injection holes provided in the water conduit 16R, and the water conduit 16L communicate with the object 6 stored in the cleaning tank 2 The to-be-washed | cleaned material 6 is wash | cleaned by inject | pouring wash water in order from the 3rd rotation washing | cleaning nozzle 17 or the fixed washing | cleaning nozzle 61 which was carried out.

  As shown in FIG. 5, a drying device 30 for drying the to-be-cleaned object 6 after rinsing is provided on the outer side of the washing tank 2. The drying device 30 includes a heater (not shown), a fan 31, an air temperature sensor (temperature sensor 29), a blower pipe 32, and the like. About these composition, since it is the same as that of a well-known thing, detailed explanation is omitted. One end of the air flow pipe 32 of the drying device 30 is in communication with the drying air outlet 2 c provided at the lower right in the cleaning tank 2, and the other end approaches the outside of the upper right end of the cleaning tank 2. Let it be open. The fan 31 is disposed in the vicinity of the other end of the blower pipe 32.

  With this configuration, the drying air sucked from the outside by the fan 31 is heated by the heater and then fed into the cleaning tank 2 from the drying air outlet 2 c to dry the object 6 to be cleaned. Moist air containing moisture removed from the surface of the object to be cleaned 6 is exhausted to the outside of the machine from an exhaust port 33 provided on the upper surface of the main body 1. An air temperature sensor (temperature sensor 29) is installed on the outer wall of the bottom of the cleaning tank 2 at a position close to the drying air outlet 2c.

  The configuration of the water reservoir 18 of the washing tank 2 will be described with reference to the drawings.

  FIG. 9 is a top cross-sectional view showing the configuration of the water reservoir and the drain in the washing tank of the dishwasher according to Embodiment 1 of the present invention. FIG. 10 is a top cross-sectional view of the state of FIG. 9 from which the water reservoir lid and the vegetable filter have been removed. 11 is a cross-sectional perspective view taken along the line AA of FIG. FIG. 12 is an exploded perspective view of a portion relating to the filter of the filter of the dishwasher in the first embodiment. FIG. 13 is a cross-sectional view taken along line B-B of FIG. FIG. 14 is a cross-sectional perspective view taken along the line C-C in FIG.

  At the bottom of the cleaning tank 2, a water reservoir 18 is provided in which the supplied cleaning water is stored in the cleaning process and the rinsing process. The water reservoir 18 has an opening 18a that opens at the bottom of the washing tank 2 formed in a horizontally-long, substantially rectangular shape, and is recessed from the opening 18a to a predetermined depth and approximately vertically. The water reservoir portion 18 is provided at the front of the center of the right and left of the cleaning tank 2.

  In the approximate center of the water reservoir 18, a recess lower than that is provided. A drain 19 is provided in the recess. The bottom surface of the water reservoir 18 is formed so as to be gently inclined downward toward the drainage port 19.

  A water reservoir lid 20 is detachably fitted to the opening 18 a at the top of the water reservoir 18 so as to be continuous with the bottom of the washing tank 2. The water reservoir lid 20 has an outer peripheral shape formed in a generally rectangular shape having a horizontally long shape corresponding to the opening 18 a of the water reservoir 18, and the center portion is recessed to form a recess 20 a. A circular opening 20b is provided at the center of the recess 20a. When the water reservoir lid 20 is attached to the opening 18 a of the water reservoir 18, the recess 20 a is located immediately above the drainage port 19.

At the drainage port 19, a remnant filter 23 for collecting remnants is disposed. The post filter filter 23 is disposed below the lower surface of the recess 20 a of the reservoir lid 20. Then, when the filter filter 23 is attached to the drainage port 19, the lower surface of the recess 20 a is configured such that the central circular opening 20 b and the upper surface of the outer edge portion of the first filter 51 of the filter filter 23 are continuous. It is done.

  The water reservoir lid 20 is provided with a plurality of very small holes 20d in most of the flat surface other than the inclined surface of the recess 20a. Most of the washing water falls from the holes 20 d into the water reservoir 18. The washing water which has not dropped from the hole 20d flows into the waste food filter 23 disposed on the lower surface of the recess 20a together with the residual food.

  As shown in FIG. 11, the drainage port 19 is constituted by an out-of-machine drainage port 41 located at the center and a hollow annular circulating drainage port 42 provided around the drainage port 41 so as to be isolated from the outside-port drainage port 41. It is configured. The outboard drainage port 41 communicates with the suction side of the drainage pump 27, and flush water is drained out of the machine. The circulation drainage port 42 communicates with the suction side of the washing pump 22, and washing water is jetted into the washing tank 2.

  As shown in FIG. 12, the post filter filter 23 is configured of a first filter 51 forming an outer peripheral portion, and a second filter 52 disposed inside the first filter 51. In the state of being attached to the drainage port 19, the second filter 52 is inserted into the inside of the first filter 51, locked and integrated, and the first filter 51 is latched and fixed to the drainage port 19 It is done.

  The first filter 51 is formed in a substantially cylindrical shape without a bottom. The cylindrical outer peripheral portion 51a is a metal plate such as stainless steel, and a large number of holes 51b through which washing water can flow in both directions are formed in a mesh shape.

  The second filter 52 is formed of a resin material and has a bottomed and substantially cylindrical shape. A handle 52c extending upward is formed from the upper surface of the outer peripheral portion 52b of the main body 52a formed in a substantially cylindrical shape with a bottom. When the second filter 52 is attached to and detached from the first filter 51, the user holds the handle 52c and operates the handle 52c in the vertical direction. When the first filter 51 and the second filter 52 are integrated with the drain port 19 when the first filter 51 and the second filter 52 are integrated, the handle portion 52c is operated so that the user holds it horizontally and rotates it horizontally.

  In the state where the second filter 52 is inserted into and integrated with the first filter 51, the outer surface of the outer peripheral portion 52b of the second filter 52 faces the inner surface of the outer peripheral portion 51a of the first filter 51. ing. The outer peripheral portion 52b of the main body portion 52a of the second filter 52 is provided with a large number of holes 52d through which the wash water can flow bidirectionally. The hole 52 d is set larger than the hole 51 b of the first filter 51.

  As shown in FIG. 13, the drainage port 19 communicates with the suction side of the washing pump 22 through the washing water circulation path 21. In the washing step and the rinsing step, the washing water passes through the holes 20 d of the lid of the water reservoir lid 20 or passes through the filter for fresh vegetables 23 and is collected in the water reservoir portion 18 and the drainage port 19. The washing water collected in the water reservoir 18 and the drainage port 19 is sucked into the washing pump 22 and pressurized, and a water feeding portion (not shown) selects a water feeding destination and sends the water in order.

  The washing water to be divided and sent is the first rotation washing nozzle 14, the second rotation washing nozzle 15, a plurality of injection holes provided in the water conduit 16R, and a third rotation fluid communication with the water conduit 16L. It is supplied to the cleaning nozzle 17 in order, and is injected from the injection hole of each nozzle. The jetted cleaning water cleans or rinses the object 6 and returns to the water reservoir 18 and the drain 19 again. In this way, the washing water is circulated in the washing step or the rinsing step.

A heater 25 is provided in the cleaning pump 22. The cleaning water to be circulated is appropriately heated as needed by energizing the heater 25. Further, a temperature sensor 29 for detecting the temperature of the washing water is installed on the outer wall of the bottom of the washing tank 2. The outer wall portion of the bottom of the cleaning tank 2 in which the temperature sensor 29 is installed is expanded to the inside of the cleaning tank 2. The detection sensitivity of the temperature sensor 29 is improved by arranging the temperature sensor 29 inside the bulging portion 2e. The control unit controls the energization of the heater 25 based on the detection information of the temperature sensor 29. The temperature sensor 29 is configured of a thermistor or the like. The temperature sensor 29 also serves as an air temperature sensor for detecting the temperature of the air in the cleaning tank 2 in the drying step.

  Further, as shown in FIG. 14, the drainage port 19 communicates with the suction side of the drainage pump 27 through the drainage path 26. Furthermore, the drainage path 26 communicates with the connection port of the drainage hose 97 outside the machine. The washing water drained after the washing and rinsing steps are completed is drained from the drainage path 26 by the drainage pump 27 to the outside of the dishwasher via the drainage hose 97.

  Next, a removable configuration for the water conduit outlet 16d of the third rotary cleaning nozzle 17 will be described with reference to the drawings.

  Fig.15 (a) is front sectional drawing which shows the state to which the 3rd rotary washing nozzle of the dishwasher in Embodiment 1 of this invention was attached. FIG. 15 (b) is a perspective view of an essential part showing a state in which the third rotary cleaning nozzle is attached. FIG. 16 (a) is a front cross-sectional view showing a state in which the third rotary washing nozzle of the dishwasher in the first embodiment of the present invention is removed. FIG. 16 (b) is a perspective view of an essential part showing a state in which the third rotary cleaning nozzle is removed. FIG. 17 is a cross-sectional view of the connection between the cleaning nozzle conduit and the conduit outlet of the third rotary cleaning nozzle. FIGS. 18 (a) and 18 (b) are explanatory diagrams of removal and attachment of the third rotary cleaning nozzle from the water channel outlet. FIG. 19 is a vertical cross-sectional view of the connection portion between the cleaning nozzle conduit and the conduit outlet of the third rotary cleaning nozzle.

  As shown in FIGS. 15-17, the left and right locking portions 17c are provided in the horizontal direction at the outer peripheral portion of the connection portion of the cleaning nozzle water conduit 17a to the water conduit outlet 16d. The locking portion 17c is formed in a rod shape long in the depth direction, and has a claw portion at its tip. The rod-like portion of the locking portion 17c has elasticity, and the claw portion side can be deformed outward with the base portion as the fixing portion. On the other hand, on the outer peripheral portion of the water conduit outlet 16d, a pair of left and right locking portions 16e are provided in the horizontal direction corresponding to the claws at the tip of the locking portion 17c.

  A projection 17 d is provided to project rearward on an upper portion of an outer peripheral portion of a connection portion of the cleaning nozzle conduit 17 a to the conduit outlet 16 d. A groove 16f having an opening in the front is provided on the upper part of the outer peripheral part of the water conduit outlet 16d. With the third rotary cleaning nozzle 17 attached to the water conduit outlet 16d, the arm 17b of the third rotary cleaning nozzle 17 rotates in a horizontal plane by fitting the protrusion 17d to the groove 16f. In addition to the positional restriction, the circumferential rotation of the third rotary cleaning nozzle 17 is suppressed.

  As shown in FIG. 18 (a), the user pulls open the locking portion 17c of the washing nozzle conduit 17a to the left and right, and the claw portion at the tip of the locking portion 17c is from the locking portion 16e of the conduit outlet 16d. Remove and pull forward. Thereby, the third rotary cleaning nozzle 17 can be removed from the water conduit outlet 16 d.

Further, as shown in FIG. 18B, the user aligns the projection 17d of the cleaning nozzle conduit 17a with the groove 16f of the conduit outlet 16d and pushes the cleaning nozzle conduit 17a from the front. As a result, the rod portion of the locking portion 17c is elastically deformed, and the claw portion at the tip end gets over the locking portion 16e of the water conduit outlet 16d and is locked to the locking portion 16e. Thus, the third rotary cleaning nozzle 17 can be attached to the water conduit outlet 16 d with the arm portion 17 b in a horizontal state.

  Removal and attachment of the cleaning nozzle conduit 17a to the conduit outlet 16d is performed by linear movement in the longitudinal direction without rotational movement. Therefore, the user can carry out the removal and attachment of the third rotary washing nozzle 17 even in the state where the upper dish cage 7 is housed in the washing tank 2.

  As shown in FIG. 19, in the state where the cleaning nozzle conduit 17a is attached to the conduit outlet 16d, the outer peripheral walls 17e and 17f of the connection to the conduit outlet 16d of the cleaning nozzle conduit 17a and the conduit outlet 16d By forming the labyrinth structure by the outer peripheral walls 16g, 16h, and 16i, the water tightness between the cleaning nozzle water conduit 17a and the water conduit outlet 16d is secured, and water leakage is suppressed. A sealing member such as an O-ring may be used instead of the labyrinth structure.

  A fixed cleaning nozzle 61 is provided at the water conduit outlet 16 d at a position where the third rotary cleaning nozzle 17 is removed. The configuration of the fixed cleaning nozzle 61 will be described with reference to FIG.

  As shown in FIG. 20, the fixed cleaning nozzle 61 includes a radiation injection hole 62 formed of a plurality of circumferentially arranged injection holes (four in the present embodiment) and a plurality of radiation injection holes 62. And a front injection hole 63 provided substantially at the center of the circumference where the plurality of injection holes are disposed. The radiation injection holes 62 and the front injection holes 63 are provided inside the outer peripheral walls 16g, 16h and 16i of the water conduit outlet 16d. The radiation injection holes 62 radiate the washing water radially widely and evenly (indicated by arrow A in the figure). The front injection holes 63 cause the washing water to be concentrated forward and strongly injected (indicated by arrow B in the figure).

  The fixed cleaning nozzle 61 uniformly and strongly wash water toward the cleaning object 6 when the cleaning object 6 having a large size such as a large plate or a pan is accommodated in the lower tableware cage 8 by the above-described injection hole configuration. Can be injected. In particular, deep-type pots and bowls that are hard to clean on the inside can be cleaned more effectively than conventional dishwashers if they are set in the lower dish basket 8 with the inside facing inward.

  When the third rotary cleaning nozzle 17 is connected to the water conduit outlet 16d, the fixed cleaning nozzle 61 is incorporated in the cleaning nozzle water conduit 17a. The radiation injection holes 62 and the front injection holes 63 function as washing water delivery holes to the third rotary washing nozzle 17. With the radiation injection holes 62 alone, both the flow rate and the flow velocity of the washing water sent to the third rotary washing nozzle 17 tend to be insufficient, and the quantity and jet pressure of the washing water jetted from the third rotary washing nozzle 17 tend to be insufficient. It becomes. By providing the forward injection holes 63 in addition to the radiation injection holes 62, a broad range and strong cleaning performance as the fixed cleaning nozzle 61 is maintained, and the flow rate and flow rate of the cleaning water sent to the third rotary cleaning nozzle 17 The required washing performance is ensured by increasing and increasing the amount and pressure of the washing water jetted from the third rotary washing nozzle 17.

  The operation and action of the dishwasher configured as described above will be described.

  The user pushes in the door open button 11 of the lower door 5. Next, the upper door 4 and the lower door 5 are in a state in which the upper door 4 is superimposed on the lower door 5 by the user putting a hand on the upper end of the lower door 5 and pulling it forward and downward. , And the opening 3 on the front surface of the cleaning tank 2 is opened forward.

The user pulls the lower dish basket 8 forward from the opening 3 of the washing tank 2 opened, and sets the object 6 to be cleaned in the lower dish basket 8. When the setting of the object 6 to be cleaned in the lower dish cage 8 is completed, the user pushes the lower dish cage 8 into the cleaning tank 2 and stores it.

  Next, the user pulls the upper dish cage 7 forward and sets the object 6 to be cleaned in the upper dish cage 7. When the setting of the objects 6 to be cleaned in the upper dish cage 7 is completed, the user pushes the upper dish cage 7 into the cleaning tank 2 and stores it.

  If the item to be cleaned 6 contained in the lower tableware basket 8 is a large tableware such as a large plate or a ramen bowl, or a large cookware such as a pot or a bowl, the upper tableware cage 7 and the third tableware The rotary cleaning nozzle 17 is removed. FIG. 21 is an explanatory view showing the state of use with the upper tableware cage 7 and the third rotary washing nozzle 17 removed. As shown in FIG. 21, a large item to be cleaned 6 such as a pan with a deep bottom is set in the lower table cage 8 toward the fixed cleaning nozzle 61 provided on the inner side, ie, the back channel outlet 16d. Is desirable. This makes it possible to intensively and intensively wash the inner surface of a deep pot which is difficult to wash.

  Depending on the size of the to-be-cleaned object 6 accommodated in the lower tableware cage 8, the upper tableware cage 7 may be left and only the third rotary cleaning nozzle 17 may be removed. FIG. 22 is an explanatory view showing a use state in a state where only the third rotary washing nozzle 17 is removed with the upper tableware cage 7 left. An upper dish cage 7 and an upper dish cage guide rail 71 are constructed so that the height position of the upper dish cage 7 moves up and down and can be adjusted to a position higher than usual. With such a configuration, a large cooking appliance can be accommodated, and the upper tableware basket 7 can also be used, which is more convenient. As shown in FIG. 22, even if a large item to be cleaned 6 such as a deep pot is set in the lower tableware basket 8, it is set in a shallow tray used for grilled fish etc. It is possible to set and wash in the upper tableware basket 7 with a long bowl or fly-back, such as sweet potato, placed sideways.

  When the object to be cleaned 6 is set in the lower dish cage 8 and the upper dish cage 7 and stored in the cleaning tank 2, the user cleans the appropriate amount of detergent from the detergent input portion 90 provided in the lower dish cage 8. The water is introduced into the water reservoir 18 of the tank 2 and the upper door 4 and the lower door 5 are closed. The user turns on the power by the operation display unit 13, inputs conditions such as a driving course and time, and presses the start button. Then, the control unit starts the operation of the dishwasher, and sequentially executes the washing step, the rinsing step, and the drying step according to the input conditions.

  First, the water supply valve operates to supply a predetermined amount of cleaning water into the cleaning tank 2. When the water supply valve is stopped and the water supply is finished, the washing pump 22 is driven. The washing water is heated by the heater 25 and pressurized by the washing pump 22, and a plurality of fixed washing nozzles provided in the first rotary washing nozzle 14, the second rotary washing nozzle 15, and the water conduit 16R from the water dividing unit. And the third rotary cleaning nozzle 17 communicated with the water conduit 16L, and water is selectively distributed.

  The water dividing unit includes, for example, a first rotary washing nozzle 14, a second rotary washing nozzle 15, a plurality of fixed washing nozzles provided in the water conduit 16R, and a third rotary washing nozzle 17 communicating with the water conduit 16L. The system is operated to switch the water supply of the washing water every predetermined time in the order of.

  The first rotary washing nozzle 14, the second rotary washing nozzle 15, and the third rotary washing nozzle 17 are rotated by the reaction force when the supplied washing water is spouted from the respective injection holes. Thereby, the wash water which rotationally moves is sprayed, and the to-be-washed | cleaned material 6 accommodated in the lower tableware cage 8 and the upper tableware cage 7 is wash | cleaned efficiently.

The injection holes provided in the vertical portion 16a of the water conduit 16R jet the washing water from the upper side of the upper tableware cage 7 to efficiently clean the outer surface of the object to be cleaned 6 such as a cup stored in the upper tableware cage 7. .
In addition, the injection holes arranged in the first horizontal portion 16b provided under the upper tableware cage 7 mainly inject the washing water to the right side of the upper tableware cage 7, and the second set of the upper tableware cage 7 The inner surface of the object to be cleaned 6 such as a cup housed obliquely downward in the cage 79 is cleaned efficiently.

  Furthermore, the third rotary washing nozzle 17 in communication with the water conduit 16L injects the washing water, which is rotationally moved from immediately below the first set cage 78 on the left side of the upper table cage 7, thereby the first set cage 78 The inner and outer surfaces of the to-be-cleaned object 6 such as the tea bowl contained in the above are efficiently cleaned.

  In the cleaning tank 2, the cleaning water jetted from these cleaning nozzles cleans the object to be cleaned 6, flows down to the water reservoir 18 at the lower part of the cleaning tank 2, and is collected in the drainage port 19. And it is again attracted | sucked by the washing pump 22, passes the vegetable filter 23, is heated by the heater 25, and is again supplied to each washing nozzle.

  The remnants that are jetted out of the washing object 6 and dropped out of the object 6 to be cleaned are collected by the water reservoir lid 20 and the waste food filter 23. Further, the temperature of the washing water is detected by the temperature sensor 29, and when the temperature of the washing water exceeds a predetermined temperature, the energization of the heater 25 is stopped. Thus, the washing water is always maintained at a temperature suitable for washing.

  When the cleaning process for a predetermined time is completed, the contaminated cleaning water is discharged to the outside by the drainage pump 27, and the cleaning water is newly supplied into the cleaning tank 2. The supplied washing water is pressurized by the washing pump 22, and communicated to the first rotary washing nozzle 14, the second rotary washing nozzle 15, a plurality of injection holes provided in the water conduit 16R, and the water conduit 16L. It is fed to the third rotary cleaning nozzle 17. The supplied washing water is jetted from the jet holes of the washing nozzles, and a rinsing step is performed to wash away the detergent, residual vegetables and the like adhering to the object to be washed 6.

  In this rinsing process, after a rinsing operation is performed for a predetermined time, the washing water from which the detergent and the residual food have been washed out of the object to be washed 6 by the rinsing operation is discharged to the outside by the drainage pump 27. Then, new washing water is supplied into the washing tank 2 and the rinsing operation is performed again. In the standard setting, this rinsing operation is performed three times, and the washing water is drained to the outside by the drainage pump 27, and the rinsing process is completed.

  Here, the flow of the washing water around the remnant filter 23 and the drain 19 during the washing and rinsing operation will be described with reference to FIGS. 13 and 14.

  During the washing and rinsing operations, the washing water collected in the water reservoir 18 is drawn by the washing pump 22 and, as shown in FIG. 13, consists of a large number of holes provided on the upper surface 47a of the circulation drainage shell 47. It is sucked into the wash water circulation path 21 from the wash water circulation suction port 48. The washing water circulation suction port 48 is circumferentially provided on the outer side of the remnant filter 23.

  Due to this configuration, the washing water flows generally as indicated by the arrow C during the washing and rinsing operations. Washing water flows generally from the inside to the outside in the holes 51 b of the first filter 51 and the holes 52 d of the second filter 52.

  At this time, the leftovers and stains contained in the circulating wash water are collected by the second filter 52 while the large leftovers are collected by the second filter 52, and the fines and dirt are collected by the first filter 51.

On the other hand, at the time of drainage operation, the washing water accumulated in the water reservoir 18 is drawn by the drainage pump 27, and as shown in FIG. Be sucked. The washing water drainage suction inlet 45 is provided circumferentially on the lower side and the inner side than the remnant filter 23. In the state immediately before the drainage, the amount of washing water present in the water reservoir 18 around the outer peripheral part of the waste food filter 23 is larger than the amount of washing water present immediately above the waste food filter 23.

  Due to this configuration, the flush water flows approximately as indicated by the arrow D during drainage operation. Washing water flows generally from the outside to the inside at the holes 51 b of the first filter 51 and the holes 52 d of the second filter 52. Therefore, the dirt and fine residue adhering to the inner circumferential surface of the first filter 51 at the time of washing and rinsing are washed away by the washing water (washing water discharged) from the outside to the inside, and the washing water drained It is discharged out of the aircraft together with the

  Once the rinsing step is complete, a drying step is performed. The drying device 30 operates, and the external air supplied into the cleaning tank 2 is heated by the heater by the built-in fan 31. Evaporation of water droplets attached to the object 6 by the effects of both blowing and heating Is done. After the drying is performed for a predetermined time, the operation of the drying device 30 is stopped and the drying process is completed. All the steps of cleaning the object 6 to be cleaned are completed, and the execution of the selected operation course is completed.

  As described above, the dishwasher in the present embodiment is vertically disposed in the main body 1, the cleaning tank 2 provided in the main body 1, and the cleaning tank 2, and the object to be cleaned 6 such as tableware is accommodated. The upper dish cage 7 and the lower dish cage 8, the washing pump 22 for circulating the washing water stored in the washing tank 2, and the water conduits such as the second horizontal portion 16c provided on the side surface in the washing tank 2 And a water conduit outlet 16d, and at the water conduit outlet 16d, any one of a plurality of washing nozzles different in injection form is provided, and switching is performed so that washing water can be jetted from any of the plurality of washing nozzles. It is configured to be possible.

  With this configuration, the cleaning nozzle can be switched appropriately for the cleaning object 6 accommodated in the upper tableware cage 7 and the lower tableware cage 8, and effective cleaning according to the cleaning object 6 can be performed. It is possible to provide a dishwasher having high cleaning performance that can sufficiently supply cleaning water even to large objects to be cleaned 6 such as dishes and large cookware such as pots.

  Further, the dishwasher according to the present embodiment is provided with the main body 1, the washing tank 2 provided in the main body 1, and the washing tank 2 disposed on the upper and lower sides, and an object to be washed 6 such as dishes is accommodated. Dish basket 7 and lower dish cage 8, water conduit 16 and water conduit outlet 16 d provided in washing tank 2, washing nozzle communicated with water conduit outlet 16 d through washing nozzle water conduit 17 a, washing tank 2 And a washing pump 22 for feeding the stored washing water to the washing nozzle, and the washing nozzle conduit 17a is configured to be removable from the water conduit outlet 16d.

  With this configuration, the cleaning nozzle can be switched appropriately for the cleaning object 6 accommodated in the upper tableware cage 7 and the lower tableware cage 8, and effective cleaning according to the cleaning object 6 can be performed. It is possible to provide a dishwasher having high cleaning performance that can sufficiently supply cleaning water even to large objects to be cleaned 6 such as dishes and large cookware such as pots.

  In addition, a fixed cleaning nozzle 61 is provided at the water conduit outlet 16d, and the cleaning nozzle water conduit 17a is configured to be removable from the water conduit outlet 16d so as to cover the fixed cleaning nozzle 61. With this configuration, it is possible to switch to a different washing nozzle by a simple operation of attaching and detaching the washing nozzle conduit 17a, and it is possible to provide a convenient dishwasher with a high washing effect.

Further, in the dishwasher of the present embodiment, the plurality of cleaning nozzles are the fixed cleaning nozzle 61 to which the injection port is fixed or the third rotation cleaning nozzle 17 in which the injection port rotates. According to this configuration, a high cleaning effect can be obtained by switching to a suitable form of cleaning nozzle according to the objects 6 to be cleaned accommodated in the upper tableware cage 7 and the lower tableware cage 8.

  Further, the third rotary cleaning nozzle 17 has a rotatable arm portion 17b having a plurality of injection holes on the upper surface at the tip of the cleaning nozzle conduit 17a, and a fixed cleaning nozzle 61 at the conduit outlet 16d. The cleaning nozzle conduit 17 a is provided so as to be detachably attached to the conduit outlet 16 d so as to cover the fixed cleaning nozzle 61. According to this configuration, the washing nozzle can be switched by a simple operation of attaching and detaching the washing nozzle water conduit 17a, and it is possible to provide a convenient dishwasher with a high washing effect.

  In addition, the fixed cleaning nozzle 61 is formed to disperse and jet the cleaning water in a predetermined direction. With this configuration, it is possible to spray the washing water widely and evenly, and to effectively wash the object 6 stored in the wide area in the washing tank 2.

  In addition, the fixed cleaning nozzle 61 is constituted by a plurality of injection holes disposed on the circumference, and radiates the cleaning water radially, and the injection holes 62 are provided substantially at the center of the circumference and forward the washing water. And forward injection holes 63 to be injected. According to this configuration, the washing water is sprayed widely and evenly, and the objects 6 to be washed contained in the wide area in the washing tank 2 are effectively washed, and concentrated toward the deep pot and bowl contained forward. It is possible to spray the washing water strongly and wash it effectively.

  Further, the cleaning nozzle conduit 17a is configured to be linearly removable in the horizontal direction. With this configuration, the user can remove and install the third rotary washing nozzle 17 even in the state where the upper tableware cage 7 is housed in the washing tank 2, and a user-friendly dishwasher can be provided. it can.

  Furthermore, in a state where the cleaning nozzle water conduit 17a is attached to the water conduit outlet 16d, the wall surfaces provided on both the cleaning nozzle water conduit 17a and the water conduit outlet 16d are configured to be watertight by forming a labyrinth structure. . By this configuration, water tightness is realized without using a seal member such as an O-ring which is a consumable part, whereby the water tightness between the cleaning nozzle water conduit 17a and the water conduit outlet 16d, which are frequently attached and detached, is prolonged. It can be maintained stable over time.

  Further, the upper tableware cage 7 provided above the water conduit outlet 16d is configured to move up and down to adjust its height position. With this configuration, a large cooking appliance can be accommodated, and the upper tableware basket 7 can also be used, which is more convenient.

  In the present embodiment, the third rotary cleaning nozzle 17 is configured to be freely switchable by being detachably attached to the water conduit outlet 16 d so as to cover the fixed cleaning nozzle 61. However, it is not limited to this configuration, and some examples are shown below. For example, the stationary cleaning nozzle 61 may be configured to be switchable by replacing it with a stationary cleaning nozzle having a different injection form. In addition, the fixed cleaning nozzle may be extended forward from the water conduit outlet 16d via the cleaning nozzle water conduit 17a. Further, the cleaning nozzle conduit 17a extending forward from the conduit outlet 16d has a switching valve and is bifurcated, and a different cleaning nozzle is provided at the tip, and the cleaning water is sprayed from any of the cleaning nozzles It may be configured to be switchable by the switching valve as described above. Further, the cleaning nozzle conduit 17a is an extension member for extending the cleaning nozzle forward, and may be configured to be replaceable to change its length.

Second Embodiment
The dishwasher in the second embodiment of the present invention differs from the first embodiment in the configuration of the fixed cleaning nozzle provided at the water conduit outlet 16 d of the water conduit 16 L. The other configuration is the same as that of the first embodiment, and the detailed description is omitted.

  FIG. 23 is a main part perspective view showing the fixed washing nozzle of the dishwasher in the second embodiment of the present invention. As shown in FIG. 23, the fixed cleaning nozzle 61 has a plurality of circular injection holes (two rows in this embodiment) equally distributed on the circumferential wall (30 degrees in this embodiment) along the circumference. And the like, and a plurality of (four in the present embodiment) front injection holes 66 provided on the tip end face.

  The radiation injection holes 64 are provided with a large number of injection holes smaller in diameter than the radiation injection holes 62 in the first embodiment. As a result, in comparison with the radiation injection holes 62 in the first embodiment, the washing water can be jetted intensively in a specific direction. Therefore, if the object to be cleaned 6 to be cleaned particularly well is set in a place where the sprayed cleaning water is concentrated, the object to be cleaned 6 can be sufficiently cleaned. In addition, washing water can be jetted to the entire inside of the washing tank 2.

  The front injection holes 66 are provided with a plurality of injection holes having a smaller diameter than the front injection holes 63 in the first embodiment. As a result, in comparison with the forward injection holes 63 in the first embodiment, the washing water can be strongly sprayed in a concentrated manner in a specific direction in front. Therefore, if the object to be cleaned 6 to be cleaned particularly well is set in a place where the sprayed cleaning water is concentrated, the object to be cleaned 6 can be sufficiently cleaned.

  The fixed cleaning nozzle 61 intensively and strongly cleans the cleaning object 6 when the cleaning object 6 having a large size such as a large plate or a pot is accommodated in the lower tableware cage 8 due to the above-described injection hole configuration. Water can be jetted. In particular, deep-type pots and bowls that are hard to clean on the inside can be cleaned more effectively than conventional dishwashers if they are set in the lower dish basket 8 with the inside facing inward.

  When the third rotary washing nozzle 17 is connected to the water conduit outlet 16 d, the radiation injection holes 64 and the forward jet holes 66 operate as washing water delivery holes to the third rotary washing nozzle 17. In addition to the radiation injection holes 64 being constituted by a large number of small diameter injection holes, and the forward injection holes 66 being constituted by a plurality of small diameter injection holes, a concentrated and strong cleaning performance as the fixed cleaning nozzle 61 And increase the flow rate and flow rate of the washing water sent to the third rotary washing nozzle 17 and increase the amount and the injection pressure of the washing water jetted from the third rotary washing nozzle 17, and carry out the necessary washing. Performance is secured.

Third Embodiment
The dishwasher in the third embodiment of the present invention is the same as the first and second embodiments in that the plurality of wash nozzles configured to be switchable are the fixed washing nozzle and the upper rotary washing nozzle. However, the form of the upper rotary cleaning nozzle is different from that of the first embodiment and the second embodiment. The other configuration is the same as that of the first embodiment or the second embodiment, and the detailed description will be omitted.

  FIG. 24 is a front cross-sectional view showing a state in which the vertical rotary cleaning nozzle of the dishwasher in the third embodiment of the present invention is attached. As shown in FIG. 24, instead of the third rotary cleaning nozzle 17 in the first and second embodiments, the vertical rotary cleaning nozzle 67 communicates with the water conduit outlet 16 d in the water conduit outlet 16 d. It is connected to be removable. The attachment / detachment configuration of the vertical rotation cleaning nozzle 67 to / from the water conduit outlet 16 d is the same as that of the first embodiment and the second embodiment.

  The vertical rotation cleaning nozzle 67 has a short cylindrical cleaning nozzle water conduit 67a connected to the water conduit outlet 16d, and a rotatable arm portion 67b provided vertically to the tip of the cleaning nozzle water conduit 67a. ing. The arm portion 67 b has a plurality of injection holes for injecting washing water on the front surface. The arm portion 67 b automatically rotates in the vertical plane in response to the reaction force of the washing water jetted from the plurality of jet holes.

  With this configuration, in the dishwasher of the present embodiment, the vertical rotation cleaning nozzle 67 can spread the cleaning water over a wide area in the cleaning tank 2, and the cleaning performance can be improved.

  Further, the jet direction of the washing water from the vertical rotary washing nozzle 67 which is the upper rotary washing nozzle is the jet direction of the washing water from the first rotary washing nozzle 14 and the second rotary washing nozzle 15 which is the lower rotary washing nozzle. It is almost orthogonal to If the washing water is simultaneously sprayed from the upper rotation washing nozzle and the lower rotation washing nozzle, the washing performance is improved by the washing water jetted while rotating from the upper rotation washing nozzle and the lower rotation washing nozzle colliding with each other. be able to.

  In FIG. 24, the upper dish cage 7 is removed, but the vertical rotary cleaning nozzle 67 is disposed in the back of the cleaning tank 2 in a flat shape in the depth direction, so the upper dish cage 7 is a cleaning tank It is also possible to configure so that it can be used even in a state of being housed in the second.

  In each of the above-described embodiments, the third rotary cleaning nozzle 17 or the vertical rotary cleaning nozzle 67 is detachably mounted to the water conduit outlet 16d in a linearly detachable manner in the front-rear direction. A pivoting method as shown in FIG. 4 of Patent Document 1 may be used. However, in the case where the upper tableware cage 7 is housed in the cleaning tank 2 when the third rotational cleaning nozzle 17 uses the rotation method, the third rotational cleaning nozzle 17 and the lower surface of the upper tableware cage 7 A space for rotation of the three rotary cleaning nozzles 17 is required. Therefore, the present embodiment is better in terms of the accommodation of the object to be cleaned 6 or the workability of attaching and detaching the third rotary cleaning nozzle 17.

  Further, the fixed cleaning nozzle 61 is not limited to those described in the first embodiment and the second embodiment. What is necessary is just to be formed so that washing water may be dispersed and jetted in a predetermined direction. For example, instead of the radiation injection holes that are injected radially, the injection holes may be provided that are injected in a fan-like manner in the upward or horizontal direction.

  Moreover, although each water conduit and the water conduit outlet 16d are provided in the back surface of the washing tank 2, you may be provided in either of the inner surface 2a, 2b of the right and left of the washing tank 2. FIG. In addition, each water conduit may be provided across a plurality of inner side surfaces of the cleaning tank 2. Further, each water conduit may be provided on the outer side surface of the cleaning tank 2.

  As described above, the dishwasher according to the present invention can appropriately switch the cleaning nozzle for the objects to be cleaned accommodated in the upper and lower tableware baskets, and can perform effective cleaning according to the objects to be cleaned. Since a dishwasher with high cleaning performance can be provided that can supply sufficient washing water even to large items to be cleaned such as large dishes and large cooking utensils such as pots, the worktop of the kitchen It is useful as a domestic dishwasher or the like which is used by placing it on an etc.

1 main body 2 cleaning tank 3 opening 4 upper door (door)
5 lower door body 6 to-be-cleaned object 7 upper dish cage 8 lower dish cage 14 first rotary cleaning nozzle 15 second rotary cleaning nozzle 16 water conduit 16 c second horizontal portion (water conduit)
16d water conduit outlet 16e locking part 16f groove part 16g, 16h, 16i outer peripheral wall 16R, 16L water guiding channel 17 third rotary washing nozzle 17a washing nozzle water guiding channel 17b arm part 17c locking part 17d projection part 17e, 17f outer peripheral wall 18 Reservoir 19 Drain port 20 Plunger cover 21 Wash water circulation path 22 Wash pump 23 Debris filter 25 Heater 26 Drain path 27 Drain pump 29 Temperature sensor 30 Drying device 41 Outside drain port 42 Circulation drain port 45 Wash water drain suction port 48 Cleaning water circulation suction port 51 First filter 52 Second filter 61 Fixed cleaning nozzle 62 Radiation injection hole 63 Forward injection hole 64 Radiation injection hole 66 Forward injection hole 67 Vertical rotation cleaning nozzle (upper rotation cleaning nozzle)
67a Cleaning nozzle water conduit 67b Arm

Claims (10)

Body and
A cleaning tank provided in the body;
A tableware basket disposed in the washing tank and containing the objects to be washed,
A washing pump for circulating washing water stored in the washing tank;
A head channel and a head channel outlet provided in the washing tank;
And a washing nozzle for jetting washing water,
At least one of the water conduit outlet is provided with any of a plurality of washing nozzles having different injection modes, and is configured to be switchable so that washing water can be jetted from any of the plurality of washing nozzles. Feature
dishwasher. Body and
A cleaning tank provided in the body;
A tableware basket disposed in the washing tank and containing the objects to be washed,
A head channel and a head channel outlet provided in the washing tank;
A cleaning nozzle that communicates with the outlet of the conduit via a cleaning nozzle conduit;
And a washing pump for feeding washing water stored in the washing tank to the washing nozzle,
The cleaning nozzle conduit is configured to be removable from the outlet of the conduit.
dishwasher. A fixed cleaning nozzle is provided at the outlet of the water conduit,
The cleaning nozzle conduit is detachably configured at the outlet of the conduit so as to cover the fixed cleaning nozzle.
A dishwasher according to claim 2. The cleaning nozzle is a fixed cleaning nozzle to which an injection port is fixed, or a rotary cleaning nozzle on which the injection port rotates.
The dishwasher according to any one of claims 1 to 3. The rotary cleaning nozzle has a rotatable arm portion having a plurality of injection holes on the top surface at the tip of the cleaning nozzle water conduit,
A fixed cleaning nozzle is provided at the outlet of the water conduit,
The cleaning nozzle conduit is detachably configured at the outlet of the conduit so as to cover the fixed cleaning nozzle.
The dishwasher according to claim 4. The fixed cleaning nozzle is formed to disperse and spray the cleaning water in a predetermined direction,
The dishwasher according to any one of claims 3 to 5. The fixed cleaning nozzle is constituted by a plurality of injection holes disposed on the circumference and is provided with a radiation injection hole for radially injecting the washing water, and a front provided for substantially the center of the circumference and injecting the washing water forward. With injection holes,
A dishwasher according to claim 6. The cleaning nozzle conduit is configured to be linearly removable in the horizontal direction,
The dishwasher according to any one of claims 2 to 7. In a state where the cleaning nozzle water conduit is attached to the water conduit outlet, the wall surfaces provided on both the cleaning nozzle water conduit and the water conduit outlet form a labyrinth structure, thereby forming a watertight structure.
The dishwasher according to any one of claims 2 to 8. The tableware cage provided above the water conduit outlet can be moved up and down to adjust its height position.
The dishwasher according to any one of claims 1 to 9.