JP5668222B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for cleaning and rinsing an object to be cleaned such as dishware.

  Conventionally, in a drawer-type dishwasher 101 in which a washing tank slides back and forth, those having a plurality of washing units at the top and bottom include a lower washing unit 102 that slides horizontally as shown in FIG. The upper cleaning unit 103 is provided above and fixed to the main body. The lower cleaning unit 102 includes a lower cleaning tank 104 that slides horizontally, a lower tableware basket 105 that stores an object to be cleaned, and a lower cleaning nozzle 106 provided below the lower tableware basket 105. A door body 107 is provided in front of the lower cleaning unit 102. The door body 107 slides horizontally in conjunction with the lower cleaning unit 102. The upper cleaning unit 103 includes an upper table basket 108 for storing an object to be cleaned, an upper cleaning nozzle 109 provided below the upper table basket 108, and a receiving plate provided below the upper cleaning nozzle 109 and covering the entire upper cleaning unit 103. 110 (for example, refer to Patent Document 1).

  In this configuration, when the door body 107 is pulled out, the lower cleaning unit 102 is also pulled out, so that the object to be cleaned can be taken out with a small number of operations, which is easy to use. Further, after storing the object to be cleaned in the upper dish basket 108, the user stores the upper dish basket 108 in the main body of the dishwasher 101 in order to store the object to be cleaned in the lower dish basket 105. At this time, the dirt adhering to the object to be cleaned in the upper table basket 108 falls on the receiving plate 110 and therefore does not fall outside the washing tank (for example, the bottom surface of the dishwasher 101 main body).

Special table 2003-500145 gazette

  However, since the dishwasher of the above-mentioned patent document 1 constitutes the receiving plate 110 in the washing tub, the space (height) of the upper table basket 108 or the lower table basket 105 as compared to the case without the receiving plate. Therefore, there is a problem that the size of an object to be cleaned can be reduced. Further, since this type of dishwasher is generally stored in the lower part of the kitchen, the height of the dishwasher body cannot be increased beyond a predetermined level.

  The present invention solves the above-described conventional problems, and ensures that the height of the cleaning section that can accommodate the object to be cleaned is sufficient even when a receiving plate is provided, and that residue, cleaning water, and the like fall outside the cleaning tank. The purpose is to provide a dishwasher that is easy to use.

The cleaning tank is divided into a lower cleaning part that can be pulled back and forth and an upper cleaning part that is provided above and fixed to the lower cleaning part, and the lower cleaning part is a lower part that stores an object to be cleaned. A dish pump, a washing pump that pumps washing water in the washing tank, a lower washing nozzle that is provided below the lower dish basket and communicates with the washing pump, and a door provided in front of the lower washing unit. The upper cleaning section includes an upper tableware for storing an object to be cleaned, a substantially disk-shaped upper cleaning nozzle provided below the upper tableware basket and communicating with the cleaning pump, and around the upper cleaning nozzle. A receiving plate that covers the entire lower surface of the upper cleaning portion, and a communication path that is provided at the front end of the receiving plate and feeds the cleaning water on the receiving plate to the lower cleaning portion, the receiving plate being a nozzle The upper cleaning nozzle has an opening for the nozzle. The those that are configured so as to cover from above.

  With this configuration, it is possible to secure a sufficient height to accommodate the object to be cleaned in the cleaning tank, and to prevent residues or cleaning water from falling outside the cleaning tank.

  The dishwasher of the present invention is provided with a receiving plate around the upper cleaning nozzle, thereby ensuring a sufficient height to accommodate the object to be cleaned in the cleaning tank, and from the object to be cleaned stored in the upper dish basket. The falling contamination can be prevented from falling outside the washing tank, and a sanitary dishwasher can be provided.

Side sectional view of the dishwasher according to Embodiment 1 of the present invention. Side cross-sectional view when pulling out the lower washing tank of the dishwasher Front sectional view of the dishwasher Cross-sectional side view of the main parts near the upper washing nozzle of the dishwasher Plan sectional view near the top washing nozzle of the dishwasher Side cross-sectional view of the dishwasher when the dish basket is stored Side sectional view of another example of the upper washing nozzle of the dishwasher Side sectional view of another example of the upper washing nozzle of the dishwasher Plan sectional view of another example of the upper washing nozzle of the dishwasher Side sectional view of another example of the receiving plate of the dishwasher Front sectional view of another example of the upper washing tank and backing plate of the dishwasher Side sectional view of another example of the upper washing nozzle and backing plate of the dishwasher Side sectional view of another example of the upper washing nozzle of the dishwasher Side sectional view of the water diversion part of the dishwasher Top view of the water diversion part of the dishwasher Perspective view of a conventional dishwasher

According to a first aspect of the present invention, the cleaning tank is divided into a lower cleaning portion that is provided so as to be freely drawn back and forth, and an upper cleaning portion that is provided and fixed above the lower cleaning portion. A lower tableware for storing the washing object, a cleaning pump for pumping the cleaning water in the cleaning tank, a lower cleaning nozzle provided below the lower tableware basket and communicating with the cleaning pump, and in front of the lower cleaning unit An upper cleaning nozzle provided in a lower part of the upper table basket and communicated with the cleaning pump; and A receiving plate that is provided around the upper cleaning nozzle and covers the entire lower surface of the upper cleaning portion, and a communication path that is provided at the front end portion of the receiving plate and feeds the cleaning water on the receiving plate to the lower cleaning portion. The backing plate has an opening for the nozzle, and the upper cleaning nozzle is in front An opening for the nozzle is one that is configured so as to cover from above.

  With this configuration, the receiving plate can be configured in the cleaning tank while ensuring a sufficient height to accommodate the object to be cleaned in the cleaning tank. In addition, since the residue and washing water dropped from the object to be cleaned stored in the upper dish basket stored in the dishwasher body can be received by the receiving plate and the upper cleaning nozzle, the residue etc. falls outside the washing tank. Therefore, a sanitary dishwasher can be provided with a simple configuration.

  According to a second aspect, in the first aspect, the receiving plate is inclined downward toward the communication path, so that residues and the like gather at a low height along the inclination. Similarly, the washing water during operation of the dishwasher gathers at a low height and flows from the communication path to the lower washing section, so that the force for causing the contamination is increased, and it is possible to prevent the contamination from remaining on the receiving plate.

According to a third invention, in the first or second invention, the receiving plate and the upper washing nozzle are configured to incline downward toward the front, so that the jet is ejected from the upper washing nozzle during the operation of the dishwasher. Then, the washing water dripped onto the receiving plate and the upper washing nozzle can quickly flow from the communication path to the lower washing portion. Therefore, it is possible to provide a dishwasher that obtains a predetermined washing performance even with a small amount of water supply.

  According to a fourth aspect of the present invention, in the first to third aspects of the invention, the upper cleaning nozzle is configured to have a substantially conical shape having a highest central portion, thereby discharging the cleaning water in the cleaning tank to the outside of the cleaning tank. Since the amount of cleaning water remaining on the upper cleaning nozzle (referred to as residual water amount) can sometimes be reduced, the rinsing performance is improved. Further, since the upper surface of the upper cleaning nozzle is inclined in the direction of the wall surface of the cleaning tank, the cleaning water can be sprayed in a wider range without forming a complicated spray hole shape, and the cleaning performance can be improved.

  According to a fifth invention, in the first to fourth inventions, the upper cleaning nozzle is positioned so that at least a lower part thereof is dropped into the receiving plate, whereby a gap between the upper surface of the receiving plate and the upper tableware basket. Since the size can be reduced and the height at which the object to be cleaned can be accommodated in the upper dish basket can be secured higher, it is possible to provide an easy-to-use dishwasher.

  In a sixth aspect of the present invention, in the first to fifth aspects of the invention, the upper tableware basket is provided in the entire upper cleaning section in a plan view, so that many items to be cleaned can be stored in the upper tableware basket, improving usability. Can be made.

  According to a seventh invention, in the first to sixth inventions, the door body is provided adjacent to the door body and includes an upper tableware basket interlocking unit that slides the upper tableware basket in conjunction with the door body. It is provided. As a result, an easy-to-use upper tableware basket that is close to the hand and slides forward in conjunction with the door body can provide a more convenient dishwasher.

In an eighth aspect based on the seventh aspect, since the upper tableware basket interlocking unit includes switching means for switching between interlocking and non-interlocking of the door body and the upper tableware basket, the user mainly uses the upper tableware. Depending on whether the basket is used or the lower dish basket provided in the lower washing tub is used, it is possible to select whether the upper dish basket is linked or not linked, and it is possible to provide an easy-to-use dishwasher.
According to a ninth invention, in the first to eighth inventions, the nozzle opening has a convex bank portion at an edge of the entire circumference. Thereby, it is possible to prevent the residue dropped on the receiving plate from dropping downward from the nozzle opening.

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

(Embodiment 1)
As shown in FIGS. 1-3, the washing tank 2 is accommodated in the dishwasher main body 1 (fixed side box-shaped body). A door body 3 is provided on the entire front surface of the cleaning tank 2. Further, the dishwasher main body 1 has a lower washing unit 4 provided at the lower part of the washing tank 2 and an upper washing part 5 provided at the upper part of the washing tank 2.

  The lower cleaning section 4 is slidable in the front-rear direction, and has a lower cleaning tank 6 having an opening on the upper side, a lower dish basket 8 for storing the object 7 to be cleaned, and a bottom for cleaning the object 7 to be cleaned. A cleaning nozzle 9 is provided.

  The upper washing section 5 is provided with an upper washing tank 10 that is substantially fixed to the dishwasher body 1, an upper dish basket 11 that houses the article 7 to be washed, and an upper washing nozzle 12 for washing the article 7 to be washed. It has been. Further, a receiving plate 13 is provided around the upper cleaning nozzle 12 to cover the entire lower surface of the upper cleaning unit 5.

The lower washing tank 6 is constituted by a slide rail 16 composed of both fixed rails 14 attached to the left and right inner surfaces of the dishwasher body 1 and both movable rails 15 slidably mounted on the both fixed rails 14 respectively. It is movable in the front-rear direction and can be pulled out from the front opening of the dishwasher body 1. The door body 3 is fixed to the front surface of the lower cleaning tank 6 and moves in the front-rear direction in conjunction with the lower cleaning section 4.

  The lower cleaning nozzle 9 as a cleaning means is rotatably provided at a substantially central portion of the bottom surface of the lower cleaning tank 6 and is rotated by a reaction force of the cleaning water jet. The lower cleaning nozzle 9 is provided with an injection hole 9a for injecting cleaning water on the upper surface.

  The lower table basket 8 is provided above the lower cleaning nozzle 9 and accommodates the article 7 to be cleaned. The lower tableware basket 8 is configured to store large tableware and cooking utensils such as platters, cutting boards, and pans. Further, a concave drainage port 17 is provided at the lowermost part of the front side corner of the inner bottom surface of the lower cleaning tank 6.

  A cleaning pump 18 disposed substantially rearward of the lower cleaning tank 6 pressurizes cleaning water. The circulation path 19 is a path for supplying cleaning water from the drain port 17 to the cleaning pump 18. The water diversion unit 20 divides the washing water sent from the washing pump 18 into two paths and feeds the washing water to the upper washing nozzle 12 and the lower washing nozzle 9. The water diversion unit 20 is connected to a first water conduit 21 for supplying water to the lower cleaning nozzle 9 and a second water conduit 22 for supplying water to the upper cleaning nozzle 12.

  The filter 23 is provided above or inside the drain port 17, and the residue 24 (the object 7 (the object to be cleaned) (the object 7 (the object to be cleaned)) is washed in the washing process for washing the object 7 (tableware) and the rinse process for the object 7 (tableware). Collect the food left on the tableware) as dirt. Inside the lower cleaning tank 6 is provided a heating means 25 (for example, a sheathed heater) for heating the cleaning water.

  The upper washing tank 10 is formed so as to cover the lower washing tank 6 from above when the lower washing tank 6 is accommodated in the dishwasher main body 1, and the front is opened. The upper washing tank 10 is substantially fixed to the dishwasher body 1 by a plurality of fixing portions 26 provided on the side surfaces. A packing 27 is provided at the lower end of the upper washing tank 10 to seal the lower washing tank 6 and the upper washing tank 10 and prevent the washing water from leaking out of the washing tank 2 during the operation of the dishwasher. . The packing 27 is crushed when the lower washing tank 6 is stored in the dishwasher body 1, and seals the lower washing tank 6 and the upper washing tank 10 with water.

  The upper table basket 11 is provided in the upper washing tank 10 and stores the article 7 to be cleaned. The upper table basket 11 is composed of both fixed rollers 28 attached to the left and right inner surfaces of the upper washing tub 10 and the upper table basket movable rails 29 slidably mounted on the fixed rollers 28 respectively. The dishwasher rail 30 can be moved in the front-rear direction, and can be pulled out from the front opening of the upper washing tank 10 to the front of the dishwasher body 1. The upper table basket 11 is provided in the entire upper cleaning section 5 in a plan view, and can accommodate a large number of objects 7 to be cleaned so that it is easy to use. The upper tableware basket 11 is configured to store small tableware such as tea bowls and middle dishes having a diameter of 20 cm or less.

  The upper washing nozzle 12 is rotatably provided below the central portion of the upper table basket 11 and is rotated by the reaction force of the washing water jet. Similarly to the lower cleaning nozzle 9, the upper cleaning nozzle 12 is provided with an injection hole 12 a for injecting cleaning water on the upper surface. The upper water conduit 31 provided in a substantially horizontal front-rear direction is for feeding cleaning water to the upper cleaning nozzle 12 and connects the second water conduit 22 and the upper cleaning nozzle 12.

At the upper part of the inner wall of the door body 3, a key-shaped upper tableware basket interlocking portion 32 is provided, a part of the upper tableware basket 11 is engaged, and the lower washing tub 6 and the upper tableware basket 11 slide together. It is configured as possible. The upper tableware basket interlocking portion 32 is formed integrally with the inner wall of the lower cleaning tank 6. Moreover, the switching means 32a is provided in the upper table basket interlocking | linkage part 32 vicinity, and the interlocking | linkage with the upper tableware basket 11 and the lower washing tank 6 and the door body 3 can be switched. The switching means 32a is, for example, a retractable type. When the switching means 32a is erected as shown in FIG. 2, the upper table basket 11 is interlocked with the operation of the lower washing tub 6, and the switching means 32a. The upper table basket 11 is not interlocked with the operation of the lower washing tub 6.

  The washing water in the washing tub 2 is supplied from the water supply valve 33 to the upper washing tub 10 and drained out of the dishwasher main body 1 by the drainage means 34.

  The blowing means 35 provided on the back surface of the lower washing tank 6 operates in the drying process of the dishwasher, sucks outside air, is supplied into the washing tank 2 through the blowing path 36, and the top or side wall of the washing tank 2 The object to be cleaned 7 (tableware) in the cleaning tank 2 is dried by exhausting from the exhaust port 37 provided in the cleaning tank 2.

  The temperature detection means 38 detects the temperature of the cleaning water, air, and heating means 25 in the cleaning tank 2.

  The control means 39 (control device) controls the water supply valve 33 to supply cleaning water into the cleaning tank 2, controls the heating means 25 based on the output of the temperature detection means 38, and the cleaning pump. 18, the water supply valve 33, the drainage means 34, the air blowing means 35, and the like are controlled to sequentially control a series of steps of washing, rinsing and drying.

  As shown in FIG. 1, this dishwasher is basically installed in a kitchen cabinet A.

  Describing the operation and action in the above configuration, when the user pulls out the door body 3 from the dishwasher main body 1, the lower washing tank 6 is pulled out in conjunction. Furthermore, the upper tableware basket 11 engaged with the upper tableware basket interlocking part 32 attached to the inner wall surface of the lower washing tank 6 is also drawn out simultaneously. The user stores the article 7 to be cleaned in the upper dish basket 11 and then in the lower dish basket 8, and after the detergent is put into the lower washing tank 6, the lower washing tank 6 is slid rearward to make the dishwasher main body 1 Store inside. When the object 7 to be cleaned is stored in the lower tableware basket 8, when the upper tableware basket 11 is disengaged from the upper tableware basket interlocking portion 32, the upper tableware is stored in the dishwasher main body 1. The front portion of the basket 11 is again engaged with the upper tableware basket interlocking portion 32, and when the door body 3 is pulled out again, the upper tableware basket 11 is pulled out in conjunction.

  When the operation is started, first, the drainage means 34 is operated, and the washing water (referred to as residual water) remaining in the lower washing tank 6 in the previous operation or the like is discharged out of the dishwasher body 1. Next, the water supply valve 33 is operated to supply a predetermined amount of cleaning water to the cleaning tank 2. When a predetermined amount of cleaning water is supplied, the cleaning water supplied from the drain port 17 to the cleaning pump 18 provided in the circulation path 19 together with the detergent is pressurized by the cleaning pump 18, The water is divided into a first conduit 21 and a second conduit 22. The washing water sent to the first water conduit 21 is sent to the lower washing nozzle 9. The washing water sent to the second conduit 22 is sent to the upper cleaning nozzle 12 via the upper conduit 31. The cleaning water sent to the respective cleaning nozzles is sprayed from the injection holes 12 a and 9 a provided in the upper cleaning nozzle 12 and the lower cleaning nozzle 9.

  The cleaning water sprayed from the lower cleaning nozzle 9 and the upper cleaning nozzle 12 and cleaning the object 7 to be cleaned is collected in the drain port 17 and is sent again to the cleaning pump 18 through the circulation path 19. Thus, the cleaning process is performed. In this cleaning process, the heating means 25 provided in the lower cleaning tank 6 is energized to heat the cleaning water to a predetermined cleaning temperature.

  When the washing process is performed for a predetermined time, the drainage means 34 discharges the washing water containing dirt washed away from the article 7 (tableware) to the outside of the dishwasher body 1. Then, the water supply valve 33 newly supplies the cleaning water, and the cleaning water is again sprayed from the injection holes 12a and 9a provided in the upper cleaning nozzle 12 and the lower cleaning nozzle 9, so that the dirt or dirt 24 is covered with the detergent. Rinse the cleaning object 7 (tableware) and execute the rinsing process.

  When this rinsing process is completed, the washing water is again discharged out of the dishwasher body 1. This rinsing process is repeated several times in succession. And the washing | cleaning water is heated to predetermined temperature (for example, 60 degreeC) with the heating means 25, and the to-be-washed | cleaned material 7 (tableware) is heated and rinsed at the end of the rinse process performed several times. In the cleaning and rinsing process, the residue 24 is collected in a filter 23 provided in the lower cleaning tank 6.

  When the heating rinsing process is completed, the drying process starts. In this step, the air blowing means 35 is operated and the outside air is sent into the lower cleaning tank 6 through the air blowing path 36. After the air sent into the lower washing tank 6 from the blower port 40 is heated by the heating means 25 provided in the vicinity (downstream direction) of the blower port 40, the object 7 (tableware) is dried and the exhaust port is dried. The air is exhausted outside the dishwasher body 1 from 37. After the drying process is completed, the operation is terminated.

  In the present embodiment configured as described above, the configuration in the vicinity of the upper cleaning nozzle 12 and the receiving plate 13 will be described in detail below.

  As shown in FIGS. 4 and 5, the receiving plate 13 is formed in a horizontal plate shape by providing a circular nozzle opening 41 at a substantially central portion. The outer periphery of the receiving plate 13 is connected to the back surface and both side surfaces of the upper cleaning tank 10. The edge portion of the nozzle opening 41 has a bank portion 42 provided on the entire circumference so as to prevent the cleaning water from dripping downward from the nozzle opening 41. The front end face of the receiving plate 13 is provided behind the front end face of the upper cleaning tank 10 so that a communication path 43 is formed between the front inner wall surface of the lower cleaning tank 6 and the receiving plate 13 when the lower cleaning tank 6 is stored. Configured. This communication path 43 feeds the cleaning water on the receiving plate 13 to the lower cleaning section 4 (lower cleaning tank 6), and the residue 24 attached to the object 7 to be cleaned stored in the upper table basket 11 is cleaned. It is desirable to provide about 20 mm so that it can fall into the lower washing tank 6 inside.

  The upper cleaning nozzle 12 has a substantially disk shape, the lower portion of the upper cleaning nozzle 12 is smaller in diameter than the nozzle opening 41 of the receiving plate 13, and the upper portion of the upper surface of the receiving plate 13 is larger in diameter than the bank portion 42. The upper cleaning nozzle 12 is positioned so that the lower portion of the upper cleaning nozzle 12 is dropped into the nozzle opening 41 of the receiving plate 13, and the entire circumference of the nozzle opening 41 of the receiving plate 13 above the upper cleaning nozzle 12. Is covered from above. The upper cleaning nozzle 12 has a hollow interior, and a plurality of injection holes 12 a for injecting cleaning water are provided on the upper surface of the upper cleaning nozzle 12.

  As shown in FIGS. 1 and 2, the upper cleaning nozzle 12 and the second water conduit 22 are connected by an upper water conduit 31 extending in a substantially horizontal front-rear direction. The upper water conduit 31 is fixed to the lower surface of the receiving plate 13. The upper water conduit 31 is bent upward at a substantially central portion of the lower surface of the upper cleaning nozzle 12 and is connected to a shaft portion provided on the lower surface of the upper cleaning nozzle 12. The end portion of the upper water guide channel 31 on the shaft portion side is configured to have a diameter larger than that of the shaft portion, and the upper cleaning nozzle 12 is rotatable around the shaft portion. Further, the upper water conduit 31 is configured to be fitted with the second water conduit 22 when the lower washing tank 6 is stored in the dishwasher body 1 and to be detached when the lower washing tank 6 is pulled out.

  The operation and action of the configuration near the receiving plate 13 and the upper cleaning nozzle 12 will be described in detail below.

  As described above, when the user stores the article 7 to be cleaned, the door body 3 is first pulled out of the dishwasher main body 1. At this time, the lower cleaning tank 6 is pulled out in conjunction with each other as shown in FIG. Furthermore, the upper tableware basket 11 engaged with the upper tableware basket interlocking part 32 attached to the inner wall surface of the lower washing tank 6 is also drawn out simultaneously. The user first places a small object 7 (tableware) in the upper table basket 11. Subsequently, the upper dish basket 11 is slid backward in order to store the remaining article 7 (tableware) such as the large dish 7 (tableware) in the lower tableware basket 8. Specifically, the upper table basket 11 is removed from the upper tableware basket interlocking section 32 by releasing the engagement with the upper tableware basket interlocking section 32 by lifting the front part of the upper tableware basket 11 upward and shifting it backward. The upper tableware basket 11 removed from the upper tableware basket interlocking portion 32 is slid rearward and stored in the upper washing tank 10 as shown in FIG.

  At this time, the residue 24 (liquid or solid matter) adhering to the object 7 (tableware) accommodated in the upper tableware basket 11 partially drops downward from the lower edge of the object 7 to be cleaned. The dropped residue 24 falls on the receiving plate 13 or the upper cleaning nozzle 12 and is collected. As shown in FIG. 4, since the large diameter portion 12 b of the upper cleaning nozzle 12 is provided so as to cover the nozzle opening 41 of the receiving plate 13, the residue 24 falls in the vicinity of the outer peripheral portion of the upper surface of the upper cleaning nozzle 12. Even so, dropping of the residue 24 below the receiving plate 13 can be prevented. Further, since the bank opening portion 42 of the receiving plate 13 is provided with a bank portion 42 higher than the surrounding area, the residue 24 does not fall downward from the nozzle opening portion 41. If the receiving plate 13 is not present, the residue 24 falls to the bottom of the dishwasher main body 1, which causes odor and corrosion of the dishwasher main body 1.

  The residue 24 that has fallen on the receiving plate 13 and the upper cleaning nozzle 12 falls into the lower cleaning tank 6 from the communication path 43 in front of the receiving plate 13 due to the flow of cleaning water after the start of operation, and is collected by the filter 23. The

  Further, in the case of a conventional configuration in which the nozzle plate 41 is not provided in the receiving plate 13 and the entire upper cleaning nozzle 12 is provided above the receiving plate 13, the upper cleaning nozzle 12 is in contact with the receiving plate 13 during rotation. In order to avoid this, a gap (for example, 10 mm) is required between the lower surface of the upper cleaning nozzle 12 and the upper surface of the receiving plate 13. Similarly, since a gap (for example, 10 mm) is required between the upper table basket 11 and the upper dish nozzle 12, two gaps and the upper washing nozzle 12 are provided between the upper surface of the receiving plate 13 and the upper table basket 11. Must be separated by a thickness (for example, 35 mm in total). For this reason, the height of the tableware that can be accommodated in the upper tableware basket 11 cannot be secured. According to the present embodiment, since the receiving plate 13 is provided around the upper cleaning nozzle 12 and the upper cleaning nozzle 12 is positioned so as to drop into the nozzle opening 41, the upper surface of the receiving plate 13 and the upper tableware basket It is necessary to provide only one gap (for example, 10 mm) between the table 11 and the tableware basket 11 and the tableware basket 11 can sufficiently secure the height of the tableware.

  In addition, during operation of the dishwasher, the user often takes out the object 7 to be cleaned housed in the dishwasher or adds the object 7 to be cleaned. At that time, the dishwasher is temporarily stopped, the gripping portion (not shown) of the door body 3 is gripped, and the lower washing tank 6 and the door body 3 are slid forward. At the same time that the dishwasher is suspended, the current to the washing pump 18 is cut off, and the washing pump 18 stops its operation. However, even if the current is cut off, the cleaning pump 18 operates for a predetermined time due to the inertia of the motor, so that the cleaning water continues to be ejected from the nozzle during that time. When the lower washing tank 6 is pulled out immediately after the dishwasher is stopped, the washing water is still sprayed from the upper washing nozzle 12. However, since the washed washing water falls on the receiving plate 13, the bottom of the dishwasher body 1 It is also possible to prevent the washing water from dripping onto the surface.

In this embodiment, one upper cleaning nozzle 12 is provided at the center. However, as shown in FIG. 7, a plurality of upper cleaning nozzles 12 are provided so as not to interfere with each other, and a receiving plate 13 is provided around them. May be. In this case, since cleaning is performed from a plurality of cleaning nozzles, the cleaning range is further expanded and the cleaning performance is improved. In addition, when the article 7 to be cleaned is stored only in a part of the upper table basket 11,
Since only that portion can be intensively cleaned, the cleaning process can be completed in a short time.

  Moreover, as shown in FIG. 8, it is preferable to provide the return part 44 extended in the downward direction in the outer edge part of the large diameter part 12b of the upper washing nozzle 12 upper part. As a result, the liquid residue 24 dropped on the upper surface of the upper washing nozzle 12 wraps around the lower surface of the upper washing nozzle 12 and does not fall downward from the nozzle opening 41, so that a more sanitary dishwasher can be provided. If the return portion 44 is provided so as to overlap the outer side of the bank portion 42 provided on the entire circumference of the edge of the nozzle opening 41 of the receiving plate 13, a greater effect can be obtained.

  In the present embodiment, the entire interior of the upper cleaning nozzle 12 is configured to be hollow and used as an in-nozzle flow path. However, as shown in FIG. 9, only a part of the upper cleaning nozzle 12 (for example, a straight line from the central portion). Only) may be provided with a hollow flow path 12d. In this case, since the path volume through which the washing water flows is reduced, it is possible to provide a dishwasher that obtains a predetermined washing performance with a smaller amount of washing water.

  Further, in the present embodiment, the receiving plate 13 is provided horizontally, but as shown in FIG. 10, the receiving plate 13 is directed from the nozzle opening 41 toward the wall surface of the upper cleaning tank 10 and the communication path 43. It is preferable to incline downward. In this case, the residue 24 that has fallen on the receiving plate 13 from the article 7 to be cleaned stored in the upper table basket 11 gathers on the outer peripheral portion along the inclination 13 a of the receiving plate 13. Therefore, it is possible to prevent the residue 24 from falling from the nozzle opening 41 to the lower side of the inclined surface of the receiving plate 13 without providing the bank portion 42 on the receiving plate 13. In addition, since the washing water flowing on the receiving plate 13 during the operation of the dishwasher also collects and flows on the outer peripheral portion, the force for flowing the remaining 24 increases, so that the residue 24 remaining on the receiving plate 13 and Accumulation can be prevented. Similarly, the washing water during the operation of the dishwasher gathers on the front end surface having a low height along the slope 13b of the receiving plate 13 and flows from the communication path 43 to the lower washing section 4, so that the force of polluting increases and the receiving water is received. It is possible to prevent contamination from remaining on the plate 13.

  In addition, as shown in FIG. 11, it is preferable that a substantially U-shaped collection part 45 is provided on both side surfaces and the back surface at the lower end of the upper cleaning tank 10. The recovery unit 45 temporarily stops the dishwasher during operation and, when the lower cleaning tank 6 is pulled out, recovers the cleaning water adhering to the side and back of the upper cleaning tank 10 below the receiving plate 13. It is for dripping. Thereby, the quantity of the washing water dripped at the bottom face of the dishwasher main body 1 is reduced, and a safer dishwasher can be provided.

  Further, as shown in FIG. 11, it is desirable that left and right end portions on the front side of the upper surface of the receiving plate 13 are provided with guides 46 for collecting the cleaning water dropped on the receiving plate 13 in the central portion on the front side of the receiving plate 13. By providing the guide 46, the cleaning water flowing near the end is prevented from flowing on the inner wall surface of the upper cleaning tank 10 and dripping out of the cleaning tank 2.

  Further, the receiving plate 13 and the upper cleaning nozzle 12 may be inclined downward toward the front as shown in FIG. Since the receiving plate 13 and the upper cleaning nozzle 12 are inclined downward toward the front, the cleaning water dropped on the receiving plate 13 and the upper cleaning nozzle 12 flows into the communication path 43 at the shortest distance. Since the path through which the washing water flows is shortened, the speed from when the washing water is jetted to the drain outlet 17 is increased, and the dishwasher can be operated with a small amount of washing water.

Further, as shown in FIG. 13, the upper cleaning nozzle 12 may have a conical shape with a substantially central portion being the highest. Since the upper surface of the upper cleaning nozzle 12 is inclined, the residue 24 dropped on the upper surface of the upper cleaning nozzle 12 and the dropped cleaning water can be quickly moved to the outside of the upper cleaning nozzle 12. As a result, it is possible to prevent the cleaning performance from being lowered due to the residue 24 covering the injection holes 12a of the upper cleaning nozzle 12, or to reduce the amount of remaining water in the cleaning tank 2 during drainage and improve the cleaning performance. . Furthermore, since the upper surface of the upper cleaning nozzle 12 is also directed in the circumferential direction, the cleaning water injection range can be efficiently expanded.

  Further, as shown in FIGS. 14 and 15, the water distribution unit 20 has a configuration for changing the amount of water flowing from the cleaning pump 18 to the lower cleaning nozzle 9 and the upper cleaning nozzle 12. It is desirable. Specifically, a separator 47 for changing the ratio of the amount of washing water flowing through the first water conduit 21 and the second water conduit 22 is disposed inside the water diversion section 20. The separator 47 is a disk-shaped resin molded part provided adjacent to the vicinity of the water outlet 47a and has a plurality of apertures 47b. The separator 47 has a substantially central portion connected to the water diversion motor 48 and is rotatable. Depending on the stop position of the separator 47, the ratio of the amount of cleaning water flowing through the first water conduit 21 and the second water conduit 22 can be changed, and the cleaning water can be sent to only one of them. The position of the separator 47 can be determined by a position sensor (not shown).

  When this configuration is provided, the user can specify a driving course by pressing a course setting button provided on the operation unit. Here, courses such as an upper tableware washing course for washing only the upper tableware basket 11, a lower tableware basket washing course for only the lower tableware basket 8, and an upper and lower basket washing course for washing both the upper and lower sides are provided.

  When the operation course is designated and the dishwasher is started, the drainage means 34 operates for a predetermined time, and then the water supply valve 33 operates to supply a predetermined amount of cleaning water to the lower cleaning tank 6. When a predetermined amount of washing water is supplied, the water diversion motor 48 provided in the water diversion unit 20 operates based on the set course, and the separator 47 rotates. When the upper table basket washing course is designated, the opening 47b of the separator 47 and the outlet 47a to the second conduit 22 coincide with each other, and the separator 47 stops at a position where the first conduit 21 is blocked. To do. Similarly, in the case of the lower tableware basket cleaning course, the separator 47 stops at a position where cleaning water is supplied only to the first water conduit 21. In the case of the upper and lower car cleaning course, the separator 47 is rotated so that the cleaning water can be supplied to the first water conduit 21 and the second water conduit 22 and then stopped at that position.

  Thereby, since cleaning water can be supplied and cleaned only in the minimum necessary location according to the amount of the object 7 (tableware) to be cleaned, reduction of running costs such as power consumption and water consumption can be realized.

  In the dishwasher of the present invention, the contamination falling from the object to be cleaned stored in the upper table basket is secured outside the cleaning tank while ensuring the height of the cleaning part that can store the object to be cleaned such as tableware in the cleaning tank. It is useful as a sanitary dishwasher and the like.

DESCRIPTION OF SYMBOLS 1 Dishwasher main body 2 Washing tank 3 Door body 4 Lower washing part 5 Upper washing part 6 Lower washing tank 8 Lower table basket 9 Lower washing nozzle 10 Upper washing tank 11 Upper dish basket 12 Upper washing nozzle 13 Receptacle 18 Washing pump 21 First 1 waterway 22 2nd waterway 32 Upper table basket interlocking part 43 Communication path

Claims (9)

The cleaning tank is divided into a lower cleaning part that can be pulled back and forth and an upper cleaning part that is provided above and fixed to the lower cleaning part, and the lower cleaning part is a lower part that stores an object to be cleaned. A dish pump, a washing pump that pumps washing water in the washing tank, a lower washing nozzle that is provided below the lower dish basket and communicates with the washing pump, and a door provided in front of the lower washing unit. The upper cleaning section includes an upper tableware for storing an object to be cleaned, a substantially disk-shaped upper cleaning nozzle provided below the upper tableware basket and communicating with the cleaning pump, and around the upper cleaning nozzle. A receiving plate that covers the entire lower surface of the upper cleaning portion, and a communication path that is provided at the front end of the receiving plate and feeds the cleaning water on the receiving plate to the lower cleaning portion, the receiving plate being a nozzle The upper cleaning nozzle has an opening for the nozzle. Configured dishwasher so as to cover from above. The dishwasher according to claim 1, wherein the receiving plate is inclined downward toward the communication path. The dishwasher according to claim 1 or 2, wherein the receiving plate and the upper washing nozzle are inclined downward toward the front. The dishwasher according to any one of claims 1 to 3, wherein the upper washing nozzle is formed in a substantially conical shape having a highest substantially central portion. The dishwasher according to any one of claims 1 to 4, wherein the upper washing nozzle is positioned so that at least a lower part thereof is dropped into the receiving plate. The dishwasher according to any one of claims 1 to 5, wherein the upper tableware basket is provided in the entire upper cleaning unit in a plan view. The said door body is provided adjacent to the said door body, and was provided with the upper tableware basket interlocking | linkage part which slides the said upper tableware basket in conjunction with the said door body. Dishwasher. The dishwasher according to claim 7, wherein the upper tableware basket interlocking unit includes switching means for switching between interlocking and non-interlocking of the door body and the upper tableware basket. The dish opening according to any one of claims 1 to 8, wherein the nozzle opening has a convex bank at an edge of the entire circumference.

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