WO2011132358A1 - 食器洗い機 - Google Patents
食器洗い機 Download PDFInfo
- Publication number
- WO2011132358A1 WO2011132358A1 PCT/JP2011/001322 JP2011001322W WO2011132358A1 WO 2011132358 A1 WO2011132358 A1 WO 2011132358A1 JP 2011001322 W JP2011001322 W JP 2011001322W WO 2011132358 A1 WO2011132358 A1 WO 2011132358A1
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- WIPO (PCT)
- Prior art keywords
- nozzle
- cleaning
- tower
- washing
- water
- Prior art date
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
- A47L15/23—Rotary spraying devices moved by means of the sprays
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4219—Water recirculation
- A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4278—Nozzles
- A47L15/4282—Arrangements to change or modify spray pattern or direction
Definitions
- the present invention relates to a dishwasher that cleans tableware using washing water.
- a conventional dishwasher 50 includes a dish basket 51, a washing tank 52, a washing pump 53, a washing nozzle 54, a tower nozzle 55, and a water diversion switching unit 56.
- Tableware is stored in the tableware basket 51.
- the tableware basket 51 is placed in the washing tank 52.
- the cleaning pump 53 sends cleaning water toward the cleaning nozzle 54.
- the cleaning nozzle 54 has a plurality of nozzle holes.
- the cleaning nozzle 54 injects the cleaning water pumped from the plurality of nozzle holes into the cleaning tank 52 while rotating.
- the tower nozzle 55 is formed to extend upward from the central portion of the cleaning nozzle 54.
- the tower nozzle 55 is provided with a fixed nozzle hole.
- the water diversion switching unit 56 switches the water supply to the cleaning nozzle 54 side and the tower nozzle 55 side of the cleaning water sent from the cleaning pump 53.
- the diversion switch 56 divides water supply to the cleaning nozzle 54 and water supply to the tower nozzle 55. Accordingly, the cleaning nozzle 54 and the tower nozzle 55 can be operated individually. Therefore, it is possible to suppress the amount of water necessary for the washing process with the washing nozzle 54 and the tower nozzle 55. This improves the cleaning efficiency.
- the tower nozzle 55 since the tower nozzle 55 is provided at the substantially central portion of the washing nozzle, the tower nozzle 55 does not rotate sufficiently only by the reaction force of the washing water jetted from the jet nozzle of the tower nozzle 55. Specifically, since the reaction force of the cleaning water sprayed from the spray nozzle of the tower nozzle 55 is generated at a very close distance from the rotation center, the generated rotation moment is small and the rotation of the nozzle becomes insufficient. . Therefore, it is necessary to inject cleaning water more than necessary in order to sufficiently rotate the tower nozzle 55.
- the dishwasher of the present invention has a washing tank, a washing pump, a washing nozzle, and a tower nozzle.
- An object to be cleaned is accommodated in the cleaning tank.
- the washing pump pressurizes washing water.
- the cleaning nozzle is rotatably provided in the cleaning tank and injects cleaning water pressurized by a cleaning pump onto an object to be cleaned.
- the tower nozzle is provided in a substantially central portion of the cleaning nozzle so as to protrude vertically upward, and sprays cleaning water pressurized by a cleaning pump onto an object to be cleaned.
- the cleaning nozzle has a plurality of flow paths and a valve body. Each of the plurality of flow paths is provided with an injection port.
- the valve body switches the supply of the cleaning water to any of the plurality of flow paths and the tower nozzles according to a change in the pressure of the cleaning water supplied from the cleaning pump.
- the cleaning water is ejected from at least one of the plurality of flow paths of the cleaning nozzle, and the tower nozzle rotates together with the cleaning nozzle.
- the cleaning nozzle while switching the plurality of flow paths provided in the cleaning nozzle with the valve body, at the time of injection from the tower nozzle having a flow path communicating with at least one of the plurality of flow paths of the cleaning nozzle, the cleaning nozzle also Wash water is jetted. Accordingly, the cleaning water can be jetted from the cleaning nozzle and the tower nozzle while rotating the cleaning nozzle itself. Accordingly, the object to be cleaned can be reliably cleaned by the rotating tower nozzle while saving water.
- FIG. 1 is a schematic sectional view of a dishwasher according to Embodiment 1 of the present invention.
- FIG. 2 is a partial sectional view of the washing nozzle of the dishwasher according to the first embodiment of the present invention as seen from above.
- FIG. 3 is a cross-sectional view of a part of the washing nozzle and the valve body of the dishwasher according to the first embodiment of the present invention.
- FIG. 4 is a perspective view of an essential part of the dishwasher according to Embodiment 1 of the present invention.
- FIG. 5 is a perspective view of main parts of the dishwasher according to Embodiment 1 of the present invention.
- FIG. 6 is a perspective view of the valve body of the dishwasher according to the first embodiment of the present invention.
- FIG. 1 is a schematic sectional view of a dishwasher according to Embodiment 1 of the present invention.
- FIG. 2 is a partial sectional view of the washing nozzle of the dishwasher according to the first embodiment of the present invention as seen from above.
- FIG. 3 is a cross
- FIG. 7 is a plan view of the valve body of the dishwasher according to the first embodiment of the present invention as viewed from above.
- FIG. 8 is a plan view of the valve body of the dishwasher according to the first embodiment of the present invention as viewed from below.
- FIG. 9 is a partial cross-sectional view of the vicinity of the valve body of the dishwasher according to the first embodiment of the present invention.
- FIG. 10 is a plan view when the valve body of the dishwasher according to the first embodiment of the present invention closes the second cleaning flow path inlet.
- FIG. 11 is a plan view of the washing channel and the tower nozzle channel inlet of the dishwasher according to the second embodiment of the present invention.
- FIG. 12 is a sectional view of a part of a washing nozzle and a valve body of the dishwasher according to the second embodiment of the present invention.
- FIG. 13 is a plan view showing a state in which the valve body of the dishwasher according to the second embodiment of the present invention is in contact with the cleaning nozzle channel inlet and the tower nozzle channel.
- 14 is a cross-sectional view of the plan view of FIG. 13 viewed from the tower nozzle side.
- FIG. 15 is a cross-sectional view of the washing nozzle and the tower nozzle of the dishwasher according to the second embodiment of the present invention.
- FIG. 16 is sectional drawing which looked at the tower nozzle of the dishwasher of Embodiment 2 of this invention from upper direction.
- FIG. 17 is a plan view seen from above the washing nozzle of the dishwasher according to the second embodiment of the present invention.
- FIG. 18 is a partially cutaway perspective view of a conventional dishwasher.
- FIG. 1 is a schematic cross-sectional view of the dishwasher according to Embodiment 1 of the present invention.
- FIG. 2 is a partial sectional view of the washing nozzle of the dishwasher according to the first embodiment of the present invention as seen from above.
- FIG. 3 is a sectional view of a part of a washing nozzle and a valve body of the dishwasher according to the first embodiment of the present invention.
- FIG. 4 is a perspective view of an essential part of the dishwasher according to Embodiment 1 of the present invention.
- FIG. 5 is a perspective view of a main part of the dishwasher according to the first embodiment.
- FIG. 6 is a perspective view of the valve body of the dishwasher according to the first embodiment.
- FIG. 1 is a schematic cross-sectional view of the dishwasher according to Embodiment 1 of the present invention.
- FIG. 2 is a partial sectional view of the washing nozzle of the dishwasher according to the first embodiment of the present invention as seen from above.
- FIG. 3 is a sectional view of a part
- FIG. 7 is a top view of the valve body of the dishwasher according to the first embodiment.
- FIG. 8 is a bottom view of the valve body of the dishwasher according to the first embodiment.
- FIG. 9 is a partial cross-sectional view of the vicinity of the valve body of the dishwasher according to the first embodiment.
- FIG. 10 is a plan view when the valve body of the dishwasher according to the first embodiment closes the second cleaning channel inlet.
- the dishwasher includes a main body 1, a washing tub 2, a dish basket 4, a water supply unit 5, a washing pump 6, a washing nozzle 7, a drain port 8, a drain filter 9, a residue filter 10, a heating unit 11, and a temperature sensor 12. And a rotary bearing 13, a tower nozzle 39, and a control unit 200.
- the main body 1 is provided with a cleaning tank 2 having an opening (not shown) that can be opened and closed by a door (not shown).
- the washing tub 2 accommodates a tableware basket 4.
- An object to be cleaned 3 such as tableware is set in the tableware basket 4 by the user from the opening and is accommodated in the cleaning tank 2.
- the water supply unit 5 is controlled by the control unit 200 and supplies tap water as cleaning water into the cleaning tank 2.
- the cleaning pump 6 pressurizes and supplies the cleaning water supplied from the water supply unit 5 and stored in the cleaning tank 2 to the cleaning nozzle 7.
- the cleaning nozzle 7 has a nozzle portion 100 and a rotating shaft 14, and a flow path is provided in each of them.
- the nozzle portion 100 extends linearly and horizontally on both sides in a direction perpendicular to the rotation shaft 14 around the rotation shaft 14. Further, a plurality of symmetrical flow paths extending in parallel from the rotating shaft 14 side toward the tip are provided in the nozzle portion 100.
- the cleaning nozzle 7 injects pressurized cleaning water supplied from the cleaning pump 6 into the cleaning tank 2.
- the washing water sprayed from the washing nozzle 7 is a detergent solution for washing the article 3 to be washed, or rinse water for rinsing the article 3 to be washed.
- the drain port 8 is provided at the bottom of the cleaning tank 2 and communicates with the suction side of the cleaning pump 6.
- the drain filter 9 and the residue filter 10 are provided in the drain port 8 and collect the residue containing the cleaning water.
- the residual filter 10 is provided above the drainage filter 9.
- the residue filter 10 is formed to be finer and more detachable than the drainage filter 9, and the user can discard the residue collected after removal.
- the heating unit 11 is provided at the bottom of the cleaning tank 2 and heats the cleaning water stored in the cleaning tank 2 and the drying air in the cleaning tank 2.
- the temperature sensor 12 is provided on the bottom outer wall of the cleaning tank 2 and detects the temperature of the cleaning tank 2.
- the rotary bearing 13 is a hollow cylinder that protrudes upward from the bottom of the cleaning tank 2 and is fixed inside the cleaning tank 2.
- the rotary shaft 13 of the cleaning nozzle 7 is fitted to the rotary bearing 13 and rotatably supports the rotary shaft 14.
- the tower nozzle 39 is provided in a substantially central portion of the cleaning nozzle 7 so as to protrude vertically upward. Near the top end of the tower nozzle 39, a tower nozzle injection port 40 for injecting cleaning water is provided.
- a plurality of flow paths are formed inside the cleaning nozzle 7 in a point-symmetric manner around the rotation shaft 14.
- the plurality of channels are a first cleaning nozzle channel 15 and a second cleaning nozzle channel 16.
- Both the first and second cleaning nozzle passages 15 and 16 extend linearly and horizontally to both sides in the direction perpendicular to the rotation axis with the rotation axis 14 as the center.
- the cleaning nozzle 7 is formed with a first cleaning nozzle channel inlet 17 and a second cleaning nozzle channel inlet 18 which are separated from each other by a substantially cross-shaped rib 110.
- the flow path of the rotating shaft 14 communicates with the first cleaning nozzle flow path 15 via the first cleaning nozzle flow path inlet 17.
- the flow path of the rotating shaft 14 communicates with the second cleaning nozzle flow path 16 via the second cleaning nozzle flow path inlet 18.
- the first cleaning nozzle channel 15 has a plurality of first injection ports 19.
- the second cleaning nozzle channel 16 has a plurality of second injection ports 20.
- a plurality of the first injection ports 19 are provided in the first cleaning nozzle flow path 15 in substantially one row.
- a plurality of second injection ports 20 are provided in the second cleaning nozzle channel 16 in a substantially line.
- the first cleaning nozzle flow path inlet 17 and the second cleaning nozzle flow path inlet 18 are fan-shaped openings having a central angle of approximately 90 degrees divided by a substantially cross-shaped rib 110. That is, the first cleaning nozzle channel inlet 17 and the second cleaning nozzle channel inlet 18 are alternately arranged to form a substantially circular opening as shown in FIG.
- the first cleaning nozzle channel inlet 17 and the second cleaning nozzle channel inlet 18 are provided at two points symmetrically with respect to the center of the cleaning nozzle 7.
- the tower nozzle 39 has a tower nozzle channel 21 communicating with at least one of the first cleaning nozzle channel 15 and the second cleaning nozzle channel 16.
- the first cleaning nozzle channel 15 branches from the first cleaning nozzle channel inlet 17 to the tower nozzle channel 21.
- the tower nozzle channel 21 does not communicate with the second cleaning nozzle channel 16.
- the rotary shaft 14 has a rotary shaft side engaging portion 30 at the lower portion of the inner wall.
- the rotating shaft side engaging portion 30 is formed in a spiral shape, and has a plurality of inclined surfaces 30A inclined in one direction and a plurality of step portions 30B connecting the inclined surfaces 30A.
- the shaft opening 26 of the rotating shaft 14 communicates with the discharge side of the cleaning pump 6, and the cleaning water is continuously supplied through the shaft opening 26 when the cleaning pump 6 is rotated by a motor.
- a valve body 23 for switching supply of cleaning water to the cleaning nozzle 7 and the tower nozzle is provided in the rotating shaft 14 and rotates together with the rotating shaft 14.
- the valve body 23 includes an opening 24 that is a fan-shaped notch with a central angle of approximately right angles, and a closing portion 25 that has a fan-shaped flat end portion with a central angle of approximately right angles.
- the valve body 23 provided in the rotating shaft 14 has a hollow cylindrical portion 32 that protrudes downward from the center of rotation. Two each of the opening 24 and the closing part 25 are provided symmetrically with respect to the hollow cylindrical part 32. Each of the opening 24 and the closing portion 25 is formed so that two fan-shaped portions having a central angle of about 90 degrees are symmetrical about the hollow cylindrical portion 32.
- a mountain-shaped upper surface engaging portion 28 is formed on the upper surface of the closing portion 25 on the hollow cylindrical portion 32 side (rotation center side).
- a lower surface engaging portion 29 whose lower end surface is inclined is formed on the lower surface in the vicinity of the outer peripheral edge of the closing portion 25.
- a support shaft 31 is formed on the cleaning channel inlet side (the lower side in FIG. 9) of the cleaning nozzle 7 so as to protrude downward.
- the hollow cylindrical portion 32 is arranged so that the support shaft 31 can be inserted.
- the support shaft 31 serves as a guide portion for the raising operation of the valve body 23.
- the support shaft 31 may be configured by a rib having a cross section. By being configured with a cross-shaped rib, a space is formed between the hollow cylindrical portion 32 and the inflowing foreign matter is easily discharged out of the hollow cylindrical portion 32.
- a user sets an object to be cleaned 3 such as tableware in the dish basket 4 from the opening of the main body 1, and stores the object to be cleaned 3 in the cleaning tank 2.
- the door is closed to close the opening of the main body 1 and start operation.
- a washing process for removing the dirt of the article to be cleaned 3 a normal rinsing process for flowing the detergent and residue attached to the article to be cleaned 3, and the detergent and residue adhering to the article to be cleaned 3 were heated by the heating unit 11.
- the control unit 200 executes a heating rinsing process that flows with cleaning water and a drying process that dries the water adhering to the article 3 to be cleaned.
- the control unit 200 operates the water supply unit 5 to supply a predetermined amount of cleaning water into the cleaning tank 2. Subsequently, the cleaning pump 6 pressurizes the cleaning water, and the cleaning nozzle 7 and the tower nozzle 39 spray the cleaning water. At this time, the heating unit 11 such as a sheathed heater provided in the cleaning tank 2 is energized, and the cleaning process is performed while heating the cleaning water. When the temperature sensor 12 detects that the washing water has reached a predetermined temperature or higher, the control unit 200 stops energizing the heating unit 11. This washing process is performed for a predetermined time.
- the control unit 200 When the washing process for a predetermined time is finished, the washing water containing dirt is discharged out of the main body 1. Then, the control unit 200 newly supplies cleaning water from the water supply unit 5 into the cleaning tank 2. Further, the control unit 200 operates the cleaning pump 6 and again sprays cleaning water from the cleaning nozzle 7 and the tower nozzle 39 to rinse the object 3 to be cleaned, such as detergent and leftovers. After rinsing for a predetermined time, the control unit 200 repeats the operation of discharging the cleaning water, supplying the cleaning water again, and rinsing. This normal rinsing process is performed about twice in succession.
- control unit 200 performs a heating rinsing process for rinsing the article to be cleaned 3 using the cleaning water heated by the heating unit 11.
- control unit 200 discharges the washing water to the outside of the main body 1, performs a drying process in which drying is performed by a drying unit (not shown) for a predetermined time, and ends the operation.
- the washing water circulates as follows. Specifically, the cleaning water in the cleaning tank 2 passes through the drainage filter 9 and the residual filter 10 and is sucked into the cleaning pump 6 provided in the circulation path (not shown). Subsequently, the cleaning pump 6 pressurizes the cleaning water and supplies the cleaning water to the cleaning nozzle 7 and the tower nozzle 39 provided at the bottom of the cleaning tank 2. The cleaning water supplied from the cleaning pump 6 flows into the rotary shaft 14 from the shaft opening 26 of the rotary shaft 14.
- the washing water that has flowed into the rotary shaft 14 flows into the washing nozzle passages 15 and 16 and the tower nozzle passage 21 from the washing nozzle passage inlets 17 and 18, and the washing tank from the injection ports 19 and 20 and the tower nozzle injection port 40. Is injected into the inside.
- the valve body 23 receives a water pressure larger than its own weight from the washing water at the lower surface of the closing portion 25 and rises in the rotating shaft 14, and the valve body 23 itself in the middle of ascending. Starts rotating.
- the valve body 23 finishes moving up in the rotary shaft 14 the first cleaning nozzle flow path inlet 17 and the opening 24 of the valve body 23 coincide with each other. That is, the rotating shaft 14 communicates with the first cleaning nozzle channel 15 and the tower nozzle channel 21.
- the second cleaning nozzle flow path inlet 18 is closed by the closing portion 25 of the valve body 23.
- the cleaning water that has flowed in from the first cleaning nozzle flow path inlet 17 passes through the first cleaning nozzle flow path 15 and is sprayed from the first injection port 19 onto the object to be cleaned 3.
- the cleaning nozzle 7 rotates together with the tower nozzle 39.
- the wash water flowing in from the first wash nozzle flow path inlet 17 passes through the tower nozzle flow path 21 and is jetted from the tower nozzle injection port 40.
- the tower nozzle 39 injects cleaning water from below to the object to be cleaned 3 arranged in the upper stage of the tableware basket 4. Further, cleaning water is sprayed from above on the objects 3 to be cleaned arranged in the lower stage of the tableware basket 4. In this way, the article 3 to be cleaned is cleaned.
- the control unit 200 stops the cleaning pump 6. Then, since the valve body 23 does not receive water pressure larger than its own weight at the closing portion 25, the valve body 23 descends in the rotating shaft 14. Then, the valve body 23 engages with the rotating shaft side engaging portion 30 of the rotating shaft 14 and stops descending. The valve body 23 rotates in synchronization with the cleaning nozzle 7 when engaged with the rotary shaft side engaging portion 30. After a predetermined time, the control unit 200 drives the cleaning pump 6 again. As a result, the cleaning water again flows into the rotary shaft 14 and the valve body 23 starts to rise. At this time, the opening 24 of the valve body 23 coincides with the second cleaning nozzle flow path inlet 18, and the second cleaning nozzle flow path inlet 18 opens.
- the wash water that has flowed in from the second wash nozzle flow path inlet 18 and passed through the second wash nozzle flow path 16 is ejected from the second injection port 20 toward the object to be cleaned 3.
- the control unit 200 repeats the switching operation of the cleaning flow path by the valve body 23 for a predetermined time.
- the closing part 25 of the valve body 23 is substantially planar shape.
- the lower surface side (surface A) of the nozzle portion 100 constituting the first cleaning nozzle channel inlet 17 and the second cleaning channel inlet 18 also has a planar shape.
- valve body 23 rises substantially vertically upward while rotating. Then, as shown in FIG. 5, the closing portion 25 of the valve body 23 is closed so as to face the second cleaning nozzle passage inlet 18, and the opening 24 faces the first washing nozzle passage inlet 17. Establish.
- the cleaning pump 6 continues to operate for a predetermined time, and the valve body 23 is fixed at a position where the first cleaning nozzle flow path inlet 17 opens. During this time, the washing water is supplied to the first washing nozzle passage 15 and the tower nozzle passage 21 that communicate with the first washing nozzle passage inlet 17. At this time, the valve body 23 rotates together with the cleaning nozzle 7.
- the upper surface engaging portion 28 is provided in the valve body 23 so that the opening 24 coincides with a predetermined cleaning channel inlet.
- the upper surface engaging portion 28 has a shape inclined in the rotational direction.
- the valve body 23 rotates by a first predetermined angle (for example, 45 degrees) as the inclined portion of the upper surface engaging portion 28 slides on the partition wall while rising.
- the water pressure that pushes up the valve body 23 from below does not act, so the valve body 23 falls by its own weight.
- the lower surface engaging part 29 slides along the inclined surface 30A of the rotating shaft side engaging part 30 provided in the rotating shaft 14 shown in FIG.
- the valve body 23 stops. In this manner, the valve body 23 rotates by a second predetermined angle (for example, 45 degrees) while descending the rotary shaft 14.
- valve element 23 rises while rotating in the rotary shaft 14 so as to open the cleaning channel inlet on the side different from the previous one. Specifically, the closing portion 25 of the valve body 23 is closed to face the first cleaning nozzle flow path inlet 17, and the opening 24 is opened to face the second cleaning nozzle flow path inlet 18. In this way, by intermittently operating the cleaning pump 6, the cleaning nozzle flow path inlets 17 and 18 through which the cleaning water flows can be sequentially switched.
- valve body 23 is rotated 90 degrees by performing a forward / backward movement in the rotary shaft 14, that is, a reciprocating motion in the vertical direction once. That is, it rotates by the amount corresponding to switching the opening of the cleaning flow path that opens. And the valve body 23 returns to the original position by reciprocating up and down four times. Therefore, it is not necessary to switch and control the valve body 23 with an actuator such as a motor. Therefore, there is nothing other than the valve body 23 in the flow path of the rotating shaft 14 that obstructs the flow of the cleaning water, and the cleaning nozzle 7 and the valve body 23 can both rotate.
- the dishwasher of the present embodiment always injects cleaning water while switching the plurality of flow paths provided in the cleaning nozzle 7 with the valve body 23, and always injects cleaning water from the tower nozzle 39.
- the cleaning water is also sprayed from the cleaning nozzle 7 toward the tableware.
- the amount of water sprayed from the cleaning nozzle 7 can be suppressed, and the cleaning performance can be enhanced by the jets from the plurality of spray ports of the tower nozzle 39.
- the total opening area of the tower nozzle injection port 40 is configured to be larger than the total opening area of the injection port of the cleaning nozzle channel (the first cleaning nozzle channel 15 in the present embodiment) of the communicating cleaning nozzle 7.
- the pressure loss in the tower nozzle injection port 40 of the tower nozzle 39 reduces, it becomes possible to increase the injection amount of the wash water from the tower nozzle 39.
- the cleaning water is being jetted from the cleaning nozzle flow path (second cleaning nozzle flow path 16 in the present embodiment) of the cleaning nozzle 7 that is not in communication with the tower nozzle 39, the cleaning water is discharged from the tower nozzle 39.
- the total cleaning power is improved by increasing the spray amount while the cleaning water is sprayed from the tower nozzle 39 as described above. While the object to be cleaned such as tableware is cleaned by the tower nozzle 39, and the cleaning nozzle 7 is provided with a large number of injection ports, the cleaning performance is improved.
- the form in which the tower nozzle flow path 21 and the first cleaning nozzle flow path 15 communicate with each other has been described.
- both flow paths may be separated from each other by a partition wall.
- the first cleaning nozzle channel inlet 17 is formed by dividing it into an inlet for the tower nozzle channel 21 and an inlet for the first cleaning nozzle channel 15, and the cleaning water is jetted from the tower nozzle 39.
- the first cleaning nozzle channel 15 is also sprayed. Even with such a configuration, the same operations and effects as in the present embodiment can be obtained. Further, the same effect can be obtained even when the tower nozzle channel 21 communicates with both the first cleaning nozzle channel 15 and the second cleaning nozzle channel 16.
- FIG. 11 is a plan view of the washing nozzle channel inlet and the tower nozzle channel inlet 22 of the dishwasher according to the second embodiment of the present invention.
- FIG. 12 is a cross-sectional view of part of the washing nozzle 7 and the valve body 23 of the dishwasher according to the second embodiment of the present invention.
- FIG. 13 is a plan view showing a state in which the valve body 23 of the dishwasher according to the second embodiment of the present invention is in contact with the washing nozzle channel inlet and the tower nozzle channel inlet.
- 14 is a cross-sectional view of the plan view of FIG. 13 viewed from the tower nozzle 39 side.
- FIG. 15 is a cross-sectional view of the washing nozzle 7 and the tower nozzle 39 of the dishwasher according to the second embodiment of the present invention.
- FIG. 16 is a cross-sectional view of the tower nozzle 39 of the dishwasher according to the second embodiment of the present invention as viewed from above.
- the tower nozzle 39 has a first tower nozzle channel 33 and a second tower nozzle channel 34 in which injection ports 37 and 38 are formed, respectively.
- the first tower nozzle channel 33 communicates with the first tower nozzle channel inlet 35 and also communicates with the first cleaning nozzle channel inlet 17.
- the first tower nozzle channel 33 and the first cleaning nozzle channel 15 are also communicated. Accordingly, the cleaning water is supplied to the first tower nozzle channel 33 and the first cleaning nozzle channel 15 at the same timing.
- the second tower nozzle channel 34 communicates with the second tower nozzle channel inlet 36 and also communicates with the second cleaning nozzle channel inlet 18.
- the second tower nozzle channel 34 and the second cleaning nozzle channel 16 are also communicated with each other. Therefore, the cleaning water is supplied to the second tower nozzle channel 34 and the second cleaning nozzle channel 16 at the same timing.
- the first cleaning nozzle channel inlet 17 and the second cleaning nozzle channel inlet 18 are provided in the cleaning nozzle 7 separated from each other by a substantially cross-shaped rib 120.
- the first tower nozzle channel inlet 35 and the second tower nozzle channel inlet 36 are also provided in the cleaning nozzle 7 separated from each other by the rib 120.
- the first tower nozzle flow path inlet 35 and the second tower nozzle flow path inlet 36 are provided at two locations, respectively, and are provided one point symmetrically with respect to the center of the rib 120.
- the first tower nozzle flow path inlet 35 and the second tower nozzle flow path inlet 36 have a shape in which a fan-shaped front end portion having a substantially central angle is cut out.
- the first cleaning nozzle flow path inlet 17 and the second cleaning nozzle flow path inlet 18 are each provided at two positions, and are provided one point symmetrically with respect to the center of the rib 120.
- the first tower nozzle flow path inlet 35 and the second tower nozzle flow path inlet 36 have a shape in which a fan-shaped front end portion having a substantially central angle is cut out.
- a first cleaning nozzle channel inlet 17 is provided on the outer peripheral side of the first tower nozzle channel inlet 35 with respect to the center of the rib 120.
- a second cleaning nozzle channel inlet 18 is provided on the outer peripheral side of the second tower nozzle channel inlet 36 with respect to the center of the rib 120.
- the cleaning nozzle channel inlet and the tower nozzle channel inlet are formed separately, but the cleaning nozzle channel inlets 17 and 18 and the tower nozzle channel inlets 35 and 36 are combined into one inlet.
- the cleaning nozzle channel and the tower nozzle channel may be communicated with each other in the cleaning nozzle 7.
- Other configurations are the same as those in the first embodiment.
- the controller 200 controls the driving and stopping of the cleaning pump 6 and controls the operation of the valve body 23. Thereby, when the flow path is switched and the opening 24 coincides with the first cleaning nozzle flow path inlet 17, the cleaning water flows through the first cleaning nozzle flow path 15 and the first tower nozzle flow path 33 communicating therewith. And is injected from the first injection port 19 and the first tower nozzle injection port 37. After the operation for a predetermined time, the control unit 200 stops driving the cleaning pump 6 and then drives the cleaning pump 6 again. Thereby, operation
- the dishwasher of this Embodiment can always inject
- the first tower nozzle flow path inlet 35 and the second tower nozzle flow path inlet 36 are arranged so that the opening of the tower nozzle flow path inlet is changed during the flow path switching operation by the valve body 23. That is, a part of the inlet of the tower nozzle channel that is not closed by the closing portion 25 of the valve body 23 is closed by the valve body 23.
- FIG. 14 shows a case where cleaning water is supplied to the cleaning nozzle 7 from the first cleaning nozzle flow path inlet 17 and the first tower nozzle flow path inlet 35.
- the valve body 23 closes the second cleaning nozzle channel inlet 18 and the second tower nozzle channel inlet 36. At this time, a part of the valve body 23 closes a part of the first tower nozzle flow path inlet 35 (B portion in the figure).
- the control unit 200 stops the cleaning pump 6 in order to switch the flow path, or reduces the rotation speed of the motor of the cleaning pump 6 to reduce the water pressure applied to the valve body 23, The body 23 is lowered away from each channel inlet.
- the washing water supplied to the tower nozzle channels 33 and 34 flows toward the first tower nozzle channel inlet 35 that is open. Then, the plane B portion of the valve body 23 that closes a part of the first tower nozzle flow path inlet 35 receives a downward force from the washing water. Therefore, when the valve body 23 operates downward, the wash water from the tower nozzle flow path flows back to the inlet of the tower nozzle flow path on the side not closed by the closing portion 25 of the valve body 23. That is, at this time, the valve body 23 descends earlier due to the force of the washing water falling downward. Therefore, the valve body 23 can be reduced in weight and size, and the switching reliability of the valve body 23 is improved. Thereby, the cleaning nozzle 7 can be made small, and the cleaning performance can be improved. Also, time loss at the time of switching can be minimized.
- the valve element 23 is a spiral lower surface engaging portion 29 inclined at the same direction and substantially the same angle with respect to the rotating shaft side engaging portion 30 of the rotating shaft 14. have.
- the lower surface engaging portion 29 of the valve body 23 is engaged with the rotary shaft side by the force of the washing water that flows backward to the inlet of the flow path, that is, falls downward. While rubbing with the joint portion 30, the rotational moment for rotating and dropping increases.
- the friction surface of the lower surface engaging portion 29 that slides with the rotating shaft side engaging portion 30 has an R shape on the end surface that is approximately the same as the wall thickness of the lower surface engaging portion 29.
- the rotational moment is further increased. Further, by making the inner diameter of the lower surface engaging portion 29 of the valve body 23 and the inner diameter of the rotating shaft side engaging portion 30 substantially the same as the inner diameter of the shaft opening 26, the distance from the rotation center of the valve body 23 is shortened. Rotational moment increases. Accordingly, the cleaning nozzle 7 can be reduced in size and the cleaning performance can be improved. Also, time loss at the time of switching can be minimized.
- the injection ports 37 and 38 are preferably provided at different heights. Thereby, since the position which injects washing water can be changed, it can wash more widely.
- the total opening area of the first injection port 19 is formed to be smaller than the total opening area of the second injection port 20
- the total opening area of the second tower nozzle injection port 38 is set to the first tower.
- the total opening area of the nozzle injection port 37 is made smaller.
- the total opening area of the injection port of each flow path is, for example, the opening area of the first tower nozzle injection port 37, the total opening area of the first injection port 19, and the second tower nozzle injection port 38. It is more preferable that the total opening area of the opening area and the second injection opening 20 be the same. Thereby, the area of the last opening part of a flow path can be made the same with two flow paths.
- FIG. 16 it is good also as a structure which provides four flow paths in the inside of the tower nozzle 39.
- FIG. That is, the inside of the tower nozzle 39 is divided into four flow paths by the partition wall 42 having a cross-shaped cross section.
- the two flow paths positioned symmetrically with respect to the center of the partition wall 42, that is, the center of the tower nozzle 39, are defined as the first tower nozzle flow path 33, and Let the flow path be the second tower nozzle flow path 34.
- the cleaning water is simultaneously jetted from the two tower nozzle channels 33 and the cleaning water is jetted simultaneously from the two tower nozzle channels 34 by switching the valve body 23.
- the nozzle nozzle channels 33 and 34 through which the cleaning water is simultaneously jetted are provided at positions that are point-symmetric with respect to the center of the tower nozzle 39.
- the injection nozzles 37 and 38 of the tower nozzle 39 are mainly used for cleaning the object to be cleaned 3 such as tableware installed in the tableware basket 4 provided above the cleaning tank. It is provided near the upper part, that is, above.
- the cleaning nozzle 7 receives the reaction force of the jet by the jet jetted from the jet nozzle of the tower nozzle 39.
- the injection ports 37 and 38 provided in the tower nozzle 39 are provided at a distance away from the lower surface of the cleaning nozzle 7, it is easy to tilt. As shown in FIG.
- the spray ports that are sprayed simultaneously are provided point-symmetrically with respect to the center of the tower nozzle 39, so that the direction in which the reaction force of the washing water sprayed from the tower nozzle 39 works is opposed,
- the cleaning nozzle 7 and the tower nozzle can be easily rotated with good balance. Therefore, the cleaning nozzle 7 is stably rotated, and the reliability is improved and the cleaning performance is also improved.
- the tower nozzle 39 prevents the cleaning water sprayed from the spray ports 37 and 38 of the tower nozzle 39 and the cleaning water sprayed from the spray ports 19 and 20 of the cleaning nozzle 7 from colliding with each other.
- the injection ports 37 and 38 and the injection ports 19 and 20 of the cleaning nozzle 7 are arranged. The operation in this configuration will be described.
- the valve body 23 switches the flow path in the cleaning nozzle 7, and cleaning water is simultaneously injected from the first injection port 19 and the first tower nozzle injection port 37 (practical arrow). After a predetermined time, the valve body 23 switches the flow path, and washing water is simultaneously injected from the second injection port 20 and the second tower nozzle injection port 38 (broken arrows).
- valve body 23 After a predetermined time of operation, the valve body 23 is switched again to the cleaning flow path communicating with the first injection port 19 and the first tower nozzle injection port 37. This switching is repeated for a predetermined time. At this time, the cleaning water sprayed from the spray ports does not cross and collide with each other after spraying, and is evenly supplied over a wide range to the object to be cleaned 3 such as tableware installed in the cleaning tank 2. . Therefore, the cleaning performance can be improved by reducing the amount of unwashed residue.
- the cleaning nozzle 7 may be reversed by switching the flow path. Since the cleaning nozzle 7 is rotated by utilizing the reaction force of the jet flow from the injection port, the angle of the injection port is provided in the direction opposite to the rotation direction of the cleaning nozzle 7 as a whole.
- the present invention relates to a washing method for a dishwasher, and does not limit the shape and size of the main body 1, the arrangement of dishes, the arrangement of individual parts, and the like.
- the dishwasher according to the present invention is useful as a dishwasher because it is possible to inject washing water from a large number of injection ports by switching the washing flow path and improve washing performance. is there.
Abstract
Description
図1は、本発明の実施の形態1の食器洗い機の断面概略図である。図2は本発明の実施の形態1の食器洗い機の洗浄ノズルを上から見た部分断面図である。図3は、本発明の実施の形態1の食器洗い機の洗浄ノズルの一部と弁体の断面図である。図4は本発明の実施の形態1の食器洗い機の要部斜視図である。図5は実施の形態1の食器洗い機の要部斜視図である。図6は実施の形態1の食器洗い機の弁体の斜視図である。図7は実施の形態1の食器洗い機の弁体の上面図である。図8は実施の形態1の食器洗い機の弁体の下面図である。図9は実施の形態1の食器洗い機の弁体近傍の部分断面図である。図10は実施の形態1の食器洗い機の弁体が第2の洗浄流路入口を閉じている場合の平面図である。
図11は、本発明の実施の形態2の食器洗い機の洗浄ノズル流路入口及びタワーノズル流路入口22の平面図である。図12は、本発明の実施の形態2の食器洗い機の洗浄ノズル7の一部と弁体23の断面図である。図13は、本発明の実施の形態2の食器洗い機の弁体23が洗浄ノズル流路入口及びタワーノズル流路入口に当接している状態の平面図である。図14は、図13の平面図をタワーノズル39側から見た断面図である。図15は、本発明の実施の形態2の食器洗い機の洗浄ノズル7とタワーノズル39との断面図である。図16は、本発明の実施の形態2の食器洗い機のタワーノズル39を上方から見た断面図である。
2 洗浄槽
3 被洗浄物
4 食器かご
5 給水部
6 洗浄ポンプ
7 洗浄ノズル
8 排水口
9 排水フィルタ
10 残さいフィルタ
11 加熱部
12 温度センサ
13 回転軸受
14 回転軸
15 第1の洗浄ノズル流路
16 第2の洗浄ノズル流路
17 第1の洗浄ノズル流路入口
18 第2の洗浄ノズル流路入口
19 第1の噴射口
20 第2の噴射口
21 タワーノズル流路
22 タワーノズル流路入口
23 弁体
24 開口部
25 閉口部
26 軸開口部
28 上面係合部
29 下面係合部
30 回転軸側係合部
30A 傾斜面
30B 段部
31 支持軸
32 中空円筒部
33 第1のタワーノズル流路
34 第2のタワーノズル流路
35 第1のタワーノズル流路入口
36 第2のタワーノズル流路入口
37 第1のタワーノズル噴射口
38 第2のタワーノズル噴射口
39 タワーノズル
40 タワーノズル噴射口
42 隔壁
50 食器洗い機
51 食器かご
52 洗浄槽
53 洗浄ポンプ
54 洗浄ノズル
55 タワーノズル
56 分水切換部
110 リブ
120 リブ
Claims (9)
- 被洗浄物を収容する洗浄槽と、洗浄水を加圧する洗浄ポンプと、前記洗浄槽内に回転自在に設けられるとともに前記洗浄ポンプで加圧された洗浄水を前記被洗浄物に噴射する洗浄ノズルと、前記洗浄ノズルの中央部に鉛直上方に突出して設けられ前記洗浄ポンプで加圧された洗浄水を被洗浄物に噴射するタワーノズルと、を備え、前記洗浄ノズルは、噴射口がそれぞれに設けられた複数の流路と、前記洗浄ポンプから供給される洗浄水の水圧の変化により前記複数の流路及び前記タワーノズルへのいずれかに洗浄水の供給を切り換える弁体と、を有し、前記タワーノズルから洗浄水が噴射されるとき、前記洗浄ノズルの複数の流路のうち少なくとも一つの流路から洗浄水が噴射されて前記洗浄ノズルが回転する食器洗い機。
- 前記タワーノズルから洗浄水が噴射されるとき、前記洗浄ノズルの複数の流路のうちのいずれか一つの流路から洗浄水が噴射される
請求項1に記載の食器洗い機。 - 前記タワーノズルは噴射口を備え、前記タワーノズルと同時に洗浄水が噴射される洗浄ノズルの流路と前記タワーノズルとは連通しており、
前記タワーノズルの前記噴射口の総開口面積は、連通する前記洗浄ノズルの流路の噴射口の総開口面積より大きくした
請求項2に記載の食器洗い機。 - 前記タワーノズルは、噴射口をそれぞれ備える複数の流路を有し、前記タワーノズルの複数の流路は、前記洗浄ノズルの複数の流路とそれぞれ連通する請求項1に記載の食器洗い機。
- 前記弁体は開口部と閉口部とを有し、前記洗浄ノズルは前記洗浄槽に回転自在に係合される回転軸を有し、
前記弁体は前記回転軸内を前記洗浄ノズルとともに回転しながら、流水方向に進退移動することで回動し、前記弁体と前記洗浄ノズルの複数の流路及び前記タワーノズルの複数の流路の入口とが係合することにより前記洗浄水の供給を切換え、
前記タワーノズルの複数の流路のうちのいずれかが前記弁体の閉口部で閉塞されている時、閉塞されていない前記タワーノズルの流路の入口は、一部が前記弁体により閉口される請求項4に記載の食器洗い機。 - 前記洗浄ノズルは、前記洗浄ノズルを前記洗浄槽に回転可能に支持する回転軸を備え、
前記弁体は、前記回転軸の内壁底部に、螺旋状に形成され、1方向へ傾斜した複数の傾斜面と、前記傾斜面同士をつなぐ複数の段部を有している回転軸側係合部に対して、同方向、略同角度に傾斜した螺旋状の下面係合部を有した請求項4に記載の食器洗い機。 - 前記タワーノズル及び前記洗浄ノズルは、前記噴射口の総開口面積が互いに異なる2個の流路をそれぞれが有しており、前記タワーノズルの前記噴射口の総開口面積がより小さい流路に洗浄水が供給される場合には、前記洗浄ノズルの前記噴射口の総開口面積がより大きい流路に洗浄水が供給される
請求項4に記載の食器洗い機。 - 前記タワーノズルは、4個の流路を有し、前記弁体の切り換えにより、前記タワーノズルの中心に対して点対称に位置する2つの流路の噴射口から洗浄水が噴射される
請求項4に記載の食器洗い機。 - 前記タワーノズルの噴射口から噴射される洗浄水と前記洗浄ノズルの噴射口から噴射される洗浄水とが衝突しないように前記タワーノズルの噴射口と前記洗浄ノズルの噴射口とが配置される請求項1に記載の食器洗い機。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127027360A KR20120140680A (ko) | 2010-04-22 | 2011-03-07 | 식기 세척기 |
CN2011800203706A CN102858221A (zh) | 2010-04-22 | 2011-03-07 | 餐具清洗机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010098511A JP2011224232A (ja) | 2010-04-22 | 2010-04-22 | 食器洗い機 |
JP2010-098511 | 2010-04-22 |
Publications (1)
Publication Number | Publication Date |
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WO2011132358A1 true WO2011132358A1 (ja) | 2011-10-27 |
Family
ID=44833903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2011/001322 WO2011132358A1 (ja) | 2010-04-22 | 2011-03-07 | 食器洗い機 |
Country Status (5)
Country | Link |
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JP (1) | JP2011224232A (ja) |
KR (1) | KR20120140680A (ja) |
CN (1) | CN102858221A (ja) |
TW (1) | TW201200088A (ja) |
WO (1) | WO2011132358A1 (ja) |
Cited By (5)
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GB2506227A (en) * | 2012-09-19 | 2014-03-26 | Lg Electronics Inc | A dishwasher |
CN103654666A (zh) * | 2012-09-19 | 2014-03-26 | Lg电子株式会社 | 洗碗机 |
ITTO20130614A1 (it) * | 2013-07-19 | 2015-01-20 | Premark Feg Llc | Dispositivo di lavaggio e risciacquo combinato e macchina lavastoviglie includente tale dispositivo |
EP2954830A1 (en) * | 2014-06-12 | 2015-12-16 | LG Electronics Inc. | Dishwasher |
WO2018179785A1 (ja) * | 2017-03-31 | 2018-10-04 | パナソニックIpマネジメント株式会社 | 食器洗い機 |
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KR102007843B1 (ko) | 2013-02-04 | 2019-08-06 | 엘지전자 주식회사 | 식기세척기 |
CN105877669A (zh) * | 2014-10-28 | 2016-08-24 | 倪勇军 | 洗碗机 |
CN105286749B (zh) * | 2015-11-02 | 2018-11-27 | 佛山市顺德区美的洗涤电器制造有限公司 | 分水阀和具有其的洗碗机 |
BR112018011079A2 (pt) | 2015-12-21 | 2018-11-21 | Electrolux Appliances AB | máquina de lavar louças |
AU2016413896B2 (en) | 2016-07-08 | 2023-03-30 | Electrolux Appliances Aktiebolag | Wash arm assembly |
CN106983480A (zh) * | 2017-04-20 | 2017-07-28 | 常州市鼎升环保科技有限公司 | 一种家用洗碗杀菌一体机的装置 |
JP2019024751A (ja) * | 2017-07-27 | 2019-02-21 | 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. | 靴洗浄装置 |
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CN107874723B (zh) * | 2017-11-24 | 2023-09-26 | 佛山市顺德区美的洗涤电器制造有限公司 | 水槽洗碗机及其控制方法 |
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CN111436879B (zh) * | 2019-01-16 | 2023-01-03 | 宁波方太厨具有限公司 | 一种清洗机 |
CN113907670B (zh) * | 2020-07-10 | 2024-02-27 | 宁波方太厨具有限公司 | 一种清洗机 |
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CN103654666B (zh) * | 2012-09-19 | 2016-08-10 | Lg电子株式会社 | 洗碗机 |
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EP2954830A1 (en) * | 2014-06-12 | 2015-12-16 | LG Electronics Inc. | Dishwasher |
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WO2018179785A1 (ja) * | 2017-03-31 | 2018-10-04 | パナソニックIpマネジメント株式会社 | 食器洗い機 |
JPWO2018179785A1 (ja) * | 2017-03-31 | 2020-02-06 | パナソニックIpマネジメント株式会社 | 食器洗い機 |
JP7045618B2 (ja) | 2017-03-31 | 2022-04-01 | パナソニックIpマネジメント株式会社 | 食器洗い機 |
Also Published As
Publication number | Publication date |
---|---|
KR20120140680A (ko) | 2012-12-31 |
CN102858221A (zh) | 2013-01-02 |
JP2011224232A (ja) | 2011-11-10 |
TW201200088A (en) | 2012-01-01 |
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