Tableware washing machine

Abstract

The invention provides a dishwasher with improved convenience. A dishwasher (40) is provided with: a main body (1) having an opening (3a); a cleaning tank (2) provided inside the main body (1); a placement part (23) which is provided inside the cleaning tank (2) and on which an object to be cleaned is placed; and a support section (24) for supporting the mounting section (23) in a state in which at least the opening (3a) side of the mounting section (23) is raised.

Description

Technical Field

[0001] The present disclosure relates to a dishwasher. Background Art

[0002] Various types of dishwashers are available, including built-in types that can be incorporated into kitchens, tabletop types that can be placed on tables, and standalone types in which users can select a location for installation.

[0003] Patent Document 1 discloses a dishwasher including a drain port provided at the bottom of a washing tub and a food filter detachably fixed to the drain port.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2019-30517 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] The present inventors have recognized that it is an issue to improve the convenience for users when attaching and detaching a filter.

[0009] The present disclosure provides a technology for improving the convenience of a dishwasher.

[0010] Solutions for solving problems

[0011] The dishwasher of the present disclosure includes: a main body having an opening; a washing tank provided inside the main body; a placing portion provided inside the washing tank for placing objects to be washed; and a supporting portion for supporting the placing portion in a state in which at least the opening side of the placing portion is raised.

[0012] Effects of the Invention

[0013] According to the present disclosure, the convenience of a dishwasher can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic cross-sectional view of the dishwasher according to Embodiment 1 as seen from the front.

[0015] Figure 2 It is a schematic cross-sectional view of the dishwasher according to Embodiment 1 as seen from the side.

[0016] Figure 3 This is a schematic cross-sectional view of another cross section of the dishwasher according to the first embodiment, as seen from the side.

[0017] Figure 4It is a diagram showing a state in which the placement portion is supported by the support portion.

[0018] Figure 5 It is a diagram showing another structural example of the support portion.

[0019] Figure 6 It is a diagram showing a state in which the placement portion is supported by the support portion.

[0020] Figure 7 It is a diagram showing another structural example of the support portion.

[0021] Description of Reference Numerals

[0022] 1. Main body; 2. Washing tank; 3. Door; 3a. Opening; 4. Washing nozzle; 5. Water accumulation part; 6. Washing pump; 7. Washing pump suction port; 8. Filter unit; 9. Residue filter; 10. Punching filter; 11. Mesh filter; 12. Drain filter; 13. Drain pump; 14. Drain pump suction port; 15. Turbidity detection unit; 16. Detergent tank; 16a. Detergent tank upper part; 16b. Detergent tank lower part; 16c. Detergent filling port; 17. Float unit; 17a. Float; 18. Reed switch; 19a. Filter; 19b. Filter; 19c. Filter; 20. Control unit; 21. Detergent pump; 22. Detergent inlet; 23. Loading part; 24. Support part; 25. Water conduit; 40. Dishwasher. DETAILED DESCRIPTION

[0023] The following describes the embodiments in detail with reference to the accompanying drawings. However, there are cases where unnecessary detailed descriptions are omitted. For example, there are cases where detailed descriptions of well-known matters or repeated descriptions of substantially the same structures are omitted.

[0024] In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0025] (Implementation 1)

[0026] Below, use Figures 1 to 7 Implementation method 1 will be described.

[0027] [1-1. Structure]

[0028] Figure 1 It is a schematic cross-sectional view of dishwasher 40 according to Embodiment 1 as seen from the front. Figure 2 It is a schematic cross-sectional view of dishwasher 40 according to Embodiment 1 as seen from the side. Figure 3 This is a schematic cross-sectional view of another cross section of dishwasher 40 according to Embodiment 1, as seen from the side.

[0029] The main body 1 houses a washing tank 2 and other components for washing dishes and other items. The washing tank 2 is located within the main body 1 and accommodates dishes and other items to be washed. A loading area 23 is located within the washing tank 2 and holds the items to be washed. A door 3 opens and closes an opening 3a on the front surface of the main body 1.

[0030] A cleaning nozzle 4 is rotatably mounted within the cleaning tank 2 and sprays cleaning water from multiple nozzles located on the surface toward the objects being cleaned. A cleaning pump 6 sprays cleaning water from the cleaning nozzle 4. The cleaning pump 6 circulates the cleaning water within the cleaning tank 2 by spraying it from the cleaning nozzle 4 after it is drawn in from a cleaning pump inlet 7 located in a water reservoir 5 at the bottom of the cleaning tank 2.

[0031] The filter unit 8 captures foreign matter such as leftover food contained in the washing water. The filter unit 8 includes a residue filter 9, a punching filter 10, a mesh filter 11, and a drain filter 12.

[0032] The debris filter 9 is formed into a generally cylindrical shape from resin or the like. It has a plurality of holes arranged in a grid pattern, which traps relatively large debris. A handle is provided on the top of the debris filter 9 for the user to grasp when removing the debris filter 9 and discarding the trapped debris.

[0033] Punching filter 10 is formed into a planar shape from resin or the like, and is provided with holes during molding. This structure allows the wash water to circulate even when the debris filter 9 or the mesh filter 11 becomes clogged, allowing the wash water to flow into the water reservoir 5 from outside the opening of the debris filter 9. Furthermore, punching filter 10 is provided to capture debris contained in the wash water flowing into the water reservoir 5 from outside the opening of the debris filter 9.

[0034] The mesh filter 11 is integrally formed with the punching filter 10 and is provided on the peripheral side surface of the residue filter 9. The mesh filter 11 has fine openings such as a metal mesh plain woven mesh, and captures fine residues that have passed through the residue filter 9.

[0035] The drain filter 12 captures foreign matter contained in the drain.

[0036] After washing the object, the drain pump 13 discharges the washing water to the outside. The drain pump 13 discharges the washing water sucked from the drain pump suction port 14 provided in the water storage part 5 to the outside.

[0037] The turbidity detector 15 detects the turbidity of the wash water. It includes a light-emitting unit and a light-receiving unit. The light-receiving unit receives light emitted by the light-emitting unit and transmitted through the wash water, and measures the transmittance of the received light. The turbidity detector 15 detects the turbidity of the wash water based on the transmittance of the light measured by the light-receiving unit. The turbidity detector 15 can also detect the turbidity of the wash water using any method other than transmitted light measurement, such as scattered light measurement or integrating sphere measurement.

[0038] The detergent tank 16 stores liquid detergent for cleaning objects. The detergent tank 16 includes an upper detergent tank portion 16a located inside the washing tank 2 and an external lower detergent tank portion 16b located below the washing tank 2. Since the heavy detergent tank 16 is located at the lower portion of the washing tank 2, the stability of the main body 1 can be improved. Furthermore, compared to a case where the detergent tank 16 is located at the door 3, for example, the stability of the main body 1 when the door 3 is opened and closed can be improved. This improves user convenience. Furthermore, since the detergent tank 16 is located below the washing nozzle 4, more objects to be cleaned can be accommodated in the washing tank 2. Alternatively, the detergent tank 16 can be arranged so that the top surface of the upper detergent tank portion 16a is lower than the washing nozzle 4.

[0039] A detergent inlet 16c for injecting liquid detergent into detergent tank 16 is provided on upper portion 16a of detergent tank 16. Since detergent inlet 16c is located inside washing tub 2, liquid detergent can be easily injected into detergent tank 16. Furthermore, even if liquid detergent spills around inlet 16c while being injected into detergent tank 16, it will only spill into washing tub 2, thus preventing any problems. This improves user convenience.

[0040] Detergent injection port 16c is provided near opening 3a for receiving the laundry in washing tub 2. This allows liquid detergent to be easily injected into detergent tank 16, thereby improving user convenience.

[0041] Detergent tank upper portion 16a is made of a transparent or translucent material, so that the liquid detergent inside detergent tank upper portion 16a can be visually recognized, thereby preventing the liquid detergent from overflowing when the liquid detergent is poured into detergent tank 16.

[0042] A float unit 17 is provided in the lower portion 16b of the detergent tank. This float unit 17 includes a float 17a for detecting the liquid level of the liquid detergent in the detergent tank 16. Float 17a includes a magnet and floats on the liquid detergent. A reed switch 18, located near the side of the lower portion 16b of the detergent tank, detects the position of the magnet contained in float 17a. This allows the liquid level of the liquid detergent in the detergent tank 16 to be detected. When the remaining liquid detergent in the detergent tank 16 falls below a predetermined level, the control unit notifies the user and urges them to refill the liquid detergent.

[0043] At least one of the detergent tank upper portion 16a, the detergent tank lower portion 16b, and the float unit 17 may be detachable. This allows the user to remove these components for cleaning, thereby improving maintainability.

[0044] Detergent pump 21 injects liquid detergent from detergent tank 16 into washing tank 2. A detergent inlet 22 is provided at the bottom of washing tank 2 for injecting liquid detergent into washing tank 2. Detergent inlet 22 is located at a position higher than the level of the washing water during the washing process. This prevents washing water from flowing back toward detergent pump 21. Detergent inlet 22 can also be located at a position higher than water reservoir 5.

[0045] A filter 19a for capturing foreign matter is provided near the detergent inlet 16c of the detergent tank upper portion 16a. Furthermore, a filter 19b is provided below the float unit 17. Furthermore, a filter 19c is provided below the detergent tank lower portion 16b. This prevents foreign matter from being sucked into the detergent pump 21, potentially causing the detergent pump 21 to malfunction or be damaged. Providing the filter 19c prevents foreign matter from being sucked into the detergent pump 21 even if the user removes and cleans the float unit 17 and then installs the float unit 17 without remembering to place the filter 19b. The mesh of the filter 19a may be coarser than that of the filter 19b or the filter 19c.

[0046] Alternatively, the detergent tank 16 may store a treatment agent such as a rinse agent to promote drying of the laundry, instead of, or in addition to, the detergent tank. In this case, a treatment tank for storing the treatment agent may be provided in addition to, or in place of, the detergent tank 16. Furthermore, a treatment pump for automatically injecting the treatment agent may be provided in addition to, or in place of, the detergent pump 21.

[0047] Controller 20 controls the operation of dishwasher 40. During the washing and rinsing cycles, controller 20 operates washing pump 6 to spray washing water from washing nozzle 4. Furthermore, during the washing and rinsing cycles, controller 20 operates a motor (not shown) for rotating washing nozzle 4 to rotate washing nozzle 4. Furthermore, during the washing cycle, controller 20 operates detergent pump 21 to inject liquid detergent from detergent tank 16 into washing tub 2. Controller 20 may also control a heater (not shown) to heat the air within washing tub 2 during the drying cycle.

[0048] Controller 20 controls at least one of the washing and rinsing steps based on the turbidity of the washing water detected by turbidity detector 15. In the washing or rinsing step, controller 20 may increase the duration of the washing or rinsing step, perform more washing or rinsing steps, increase the pressure of the washing water sprayed from washing nozzle 4, increase the rotation speed of washing nozzle 4, or increase the temperature of the washing water, as the turbidity of the washing water increases. If a function for automatically adding detergent to the washing step is provided, controller 20 may also increase the amount of detergent added as the turbidity of the washing water increases.

[0049] When the residue filter 9 and the detergent tank 16 are attached and detached for cleaning, if the placement portion 23 is located above the residue filter 9 and the detergent tank 16 , it is difficult to attach and detach the residue filter 9 and the detergent tank 16 .

[0050] To solve this problem, dishwasher 40 of Embodiment 1 includes support portion 24 for supporting placement portion 23 with at least the opening 3a side of placement portion 23 raised. Thus, when a user attaches or detaches residue filter 9 or detergent tank 16, placement portion 23 can be supported with the opening 3a side of placement portion 23 raised, making attachment or detachment of residue filter 9 or detergent tank 16 easier.

[0051] Figure 4The figure shows the placement portion 23 supported by the support portion 24. The support portion 24 is located on the side of the washing tub 2 opposite the opening 3a. When loading or unloading the debris filter 9 or detergent tank 16, the user lifts the placement portion 23 on the opening 3a side upward and hooks the upper end of the rear side of the placement portion 23 onto the lower side of the support portion 24. This position supports the placement portion 23 with the opening 3a side raised. To restore the placement portion 23, the user slightly lifts the placement portion 23 on the opening 3a side, removes the upper end of the rear side of the placement portion 23 from the support portion 24, and places the placement portion 23 on the bottom of the washing tub 2. This allows for easy access to the debris filter 9 and detergent tank 16 using a simple structure. The support portion 24 can also be located on the water conduit 25, which is located on the back side of the washing tub 2 and is used to guide water into the washing tub 2 from a tap water line, an external tank, or the like. This can reduce the manufacturing cost of dishwasher 40.

[0052] Figure 5 FIG. 2 shows another configuration example of the support portion 24. In the example of this figure, the support portion 24 for locking the placement portion 23 is provided on the right side or the left side of the cleaning tank 2. Figure 6 This shows the state where the placement portion 23 is supported by the support portion 24. When the user loads or removes the residue filter 9 or detergent tank 16, they lift the entire placement portion 23 upward and engage the portion of the placement portion 23 that is configured to engage with the support portion 24. To restore the placement portion 23, they slightly lift the entire placement portion 23, remove it from the support portion 24, and place it on the bottom of the washing tank 2. This simple structure allows easy access to the residue filter 9 and detergent tank 16.

[0053] Figure 7 Another structural example of the support portion 24 is shown. Figure 7 The figure shows the placement section 23 supported by the support section 24. In the example shown in this figure, the support section 24 is provided to hook the opening 3a side of the placement section 23 onto a member located further above. The member provided with the support section 24 can be another placement section 23 above or the upper surface of the washing tank 2. To restore the placement section 23, the opening 3a side of the placement section 23 is slightly lifted, the placement section 23 is removed from the support section 24, and the placement section 23 is then placed on the bottom of the washing tank 2. This simple structure allows for easy access to the residue filter 9 and detergent tank 16.

[0054] [1-2. Action]

[0055] The following describes the operation and function of dishwasher 40, configured as described above. The user opens door 3 and places dishes or other items to be washed in washing tub 2. After setting an operating program using the operating unit (not shown), the user presses the start button (not shown) to initiate the washing operation. Control unit 20 sequentially executes the washing, rinsing, and drying steps based on the operating program.

[0056] [1-3. Effects, etc.]

[0057] As described above, in this embodiment, dishwasher 40 includes: main body 1 having opening 3a; washing tank 2 disposed within main body 1; placement portion 23 disposed within washing tank 2 for placing items to be washed; and support portion 24 for supporting placement portion 23 with at least the opening 3a side of placement portion 23 raised. This allows for easy access to the components below placement portion 23, thereby improving the maintainability of dishwasher 40.

[0058] In this embodiment, the support portion 24 is provided at a position lower than the upper end of the placement portion 23. This allows the placement portion 23 to be supported with the upper end portion thereof fixed and the opening 3a side thereof raised.

[0059] In addition, in this embodiment, the support portion 24 is provided on the side of the cleaning tank 2 opposite to the opening 3a, and supports the upper end portion of the inner side of the placement portion 23. Thus, the upper end portion of the inner side of the placement portion 23 can be fixed and supported in a state where the placement portion 23 is raised on the opening 3a side.

[0060] In this embodiment, dishwasher 40 includes a debris filter 9 detachably disposed below placement portion 23 for capturing foreign matter contained in washing water. This makes it possible to easily attach and detach the debris filter 9, thereby improving user convenience.

[0061] In addition, in this embodiment, the residue filter 9 is provided near the opening 3a. This makes it possible to easily attach and detach the residue filter 9, thereby improving user convenience.

[0062] In addition, in this embodiment, the dishwasher 40 includes a detergent tank 16, which is detachably provided below the placement portion 23 and stores a treatment agent for treating the laundry. This makes it easy to attach and detach the detergent tank 16, thereby improving user convenience.

[0063] In addition, in this embodiment, detergent injection port 16c for injecting the treatment agent into detergent tank 16 is provided near opening 3a. This makes it easy to inject liquid detergent into detergent tank 16, thereby improving user convenience.

[0064] In this embodiment, dishwasher 40 includes water conduit 25, which is provided on the side of washing tank 2 opposite opening 3a and is used to introduce washing water into washing tank 2. Support portion 24 is provided on water conduit 25. This can reduce the manufacturing cost of dishwasher 40.

[0065] (Other embodiments)

[0066] As described above, the first embodiment is described as an example of the technology disclosed in this application. However, the technology disclosed in this application is not limited thereto, and can also be applied to embodiments obtained by changes, substitutions, additions, omissions, etc. In addition, it is also possible to combine the various components described in the first embodiment to form a new embodiment.

[0067] Therefore, other embodiments are exemplified below.

[0068] In the first embodiment, a tabletop or standalone dishwasher is mainly described, but the technology disclosed herein can also be applied to a built-in dishwasher incorporated in a kitchen.

[0069] (Note)

[0070] Based on the description of the above embodiments, the following technology is disclosed.

[0071] (Technique 1)

[0072] A dishwashing machine, wherein:

[0073] This dishwasher has:

[0074] a main body having an opening;

[0075] a cleaning tank disposed inside the main body;

[0076] a loading portion disposed inside the cleaning tank and used for loading objects to be cleaned; and

[0077] A support portion is configured to support the placement portion in a state where at least the opening side of the placement portion is lifted.

[0078] This allows easy access to the structure provided below placement portion 23 , thereby improving the maintainability of dishwasher 40 .

[0079] (Technique 2)

[0080] According to the dishwasher described in technology 1,

[0081] The support portion is provided at a position lower than an upper end of the placement portion.

[0082] Thereby, the upper end portion of the placement portion 23 can be fixed and the placement portion 23 can be supported in a state in which the opening portion 3 a side is lifted.

[0083] (Technique 3)

[0084] The dishwasher according to technology 1 or 2, wherein:

[0085] The support portion is provided on a side surface of the cleaning tank that is opposite to the opening portion, and supports an upper end portion of the rear side of the placement portion.

[0086] Thereby, the upper end portion of the rear side of the placement portion 23 can be fixed and the placement portion 23 can be supported in a state in which the opening portion 3 a side is lifted.

[0087] (Technique 4)

[0088] The dishwasher according to any one of techniques 1 to 3, wherein:

[0089] The dishwasher includes a filter that is detachably provided below the placement portion and captures foreign matter contained in washing water.

[0090] This allows the residue filter 9 to be easily attached and detached, thereby improving user convenience.

[0091] (Technique 5)

[0092] According to the dishwasher described in technology 4,

[0093] The filter is provided near the opening.

[0094] This allows the residue filter 9 to be easily attached and detached, thereby improving user convenience.

[0095] (Technique 6)

[0096] The dishwasher according to any one of techniques 1 to 5, wherein:

[0097] The dishwasher includes a treatment agent tank that is detachably provided below the placement portion and stores a treatment agent for treating the objects to be washed.

[0098] This allows for easy attachment and detachment of detergent tank 16, thereby improving user convenience.

[0099] (Technique 7)

[0100] According to the dishwasher described in technology 6,

[0101] A treatment agent injection port for injecting treatment agent into the treatment agent tank is provided near the opening.

[0102] This makes it possible to easily inject liquid detergent into detergent tank 16 , thereby improving user convenience.

[0103] (Technique 8)

[0104] The dishwasher according to any one of techniques 1 to 7, wherein:

[0105] The dishwashing machine includes a water conduit, which is provided on a side of the washing tank opposite to the opening and is used to introduce washing water into the washing tank.

[0106] The supporting portion is provided on the water conduit.

[0107] This can reduce the manufacturing cost of dishwasher 40.

[0108] Industrial applicability

[0109] The present invention can be utilized in a dishwasher for washing objects to be washed.

Claims

1. A dishwashing machine, wherein: This dishwasher has: a main body having an opening; a cleaning tank disposed inside the main body; a loading portion disposed inside the cleaning tank and used for loading objects to be cleaned; and A support portion is configured to support the placement portion in a state where at least the opening side of the placement portion is lifted.

2. The dishwasher according to claim 1, wherein: The support portion is provided at a position lower than an upper end of the placement portion.

3. The dishwasher according to claim 2, wherein: The support portion is provided on a side surface of the cleaning tank that is opposite to the opening portion, and supports an upper end portion of the rear side of the placement portion.

4. The dishwasher according to any one of claims 1 to 3, wherein The dishwasher includes a filter that is detachably provided below the placement portion and captures foreign matter contained in washing water.

5. The dishwasher according to claim 4, wherein: The filter is provided near the opening.

6. The dishwasher according to any one of claims 1 to 3, wherein The dishwasher includes a treatment agent tank that is detachably provided below the placement portion and stores a treatment agent for treating the objects to be washed.

7. The dishwasher according to claim 6, wherein: A treatment agent injection port for injecting treatment agent into the treatment agent tank is provided near the opening.

8. The dishwasher according to any one of claims 1 to 3, wherein The dishwasher includes a water conduit provided on a side of the cleaning tank opposite to the opening, for introducing cleaning water into the cleaning tank. The supporting portion is provided on the water conduit.

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