Dishwasher

The dishwasher's sealing and shielding mechanism addresses water splashing and leakage issues by ensuring complete sealing and directing excess water back into the housing, maintaining efficient operation and preventing damage.

JP2025001932AInactive Publication Date: 2025-01-09MITSUBISHI ELECTRIC CORP +1
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Patent Information

Application Number
JP2023101731
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-21
Publication Date
2025-01-09
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Conventional dishwashers face issues with water splashing and leakage due to improper sealing of the lid when large or oddly shaped items are loaded, leading to inefficient washing and potential water damage.

Method used

The dishwasher design includes a sealing packing that contacts the entire circumference of the cleaning tank opening and a shielding member to prevent water splashing, with a shielding member positioned behind the seal to direct water back into the housing.

Benefits of technology

This design effectively prevents water splashing and leakage, ensuring proper sealing and reducing secondary damage from water overflow, even with improperly loaded items.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a dishwasher which reduces the incident in which washing water goes out of a washing tank, even in the case where a seal packing of a lid body does not go down to a position coming into contact with the whole periphery of an opening on an upper surface of the washing tank.SOLUTION: A dishwasher includes: a washing tank whose upper surface opens, and which stores an object to be washed so as to be put in / taken out from an upper surface opening to the inside; a housing which can store the washing tank, and whose front surface opens that supports so as to move in the front direction; and a lid body which is supported in the housing, and which covers the upper surface opening of the washing tank in a closable manner. On a surface side that closes the upper surface opening of the washing tank of the lid body, a packing seal is included which is provided so as to come into contact with the whole periphery of the upper surface opening of the washing tank, when closing the upper surface opening of the washing tank. In a state where the washing tank is totally stored in the housing, at the position which is further backward than the seal packing coming into contact with the upper surface opening on the rear side of the washing tank, a shielding member is provided which has at least one first shielding wall.SELECTED DRAWING: Figure 11
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Description

[Technical field]

[0001] The present disclosure relates to a dishwasher that washes and dries dishes. [Background technology]

[0002] Conventionally, one type of dishwasher that washes and dries dishes is known to be a type in which dishes or other items to be washed are placed in a dish basket and water used for washing or rinsing is repeatedly sprayed onto the items from a washing nozzle to wash them (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-46306 A Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional dishwasher disclosed in Patent Document 1 works by pulling a washing tub with an open top housed within a housing forward, placing the dishes to be washed in a dish basket placed inside the washing tub, and washing the dishes with washing water sprayed from a washing nozzle that rotates inside the washing tub.

[0005] A vertically movable lid is provided within the housing, and when the cleaning tank is completely housed within the housing, the lid moves to the lowest position within its movable range, blocking the opening at the top of the cleaning tank. A seal packing is provided on the back side of the lid, and the seal packing comes into contact with the entire periphery of the opening at the top of the cleaning tank to close and seal it. When the cleaning tank is pulled out forward from this state, the lid moves upward in accordance with the forward movement of the cleaning tank, and the seal packing moves in a direction away from the entire periphery of the opening at the top of the cleaning tank, reducing the resistance of the seal packing when the cleaning tank is pulled out.

[0006] The lid is designed to move up and down, so if the sealing gasket is properly lowered to a position where it contacts the entire circumference of the opening on the top of the washing tub, the seal will be maintained and washing water will not leak out of the washing tub. However, if dishes or cooking utensils are accidentally placed on the tub so that they are protruding above the top of the washing tub, the sealing gasket on the lid will not be lowered to a position where it contacts the entire circumference of the opening on the top of the washing tub, and washing water may splash out of the washing tub.

[0007] In the conventional dishwasher disclosed in Patent Document 1, a waterproof wall is provided inside the sealing gasket to prevent washing water from directly hitting the sealing gasket. However, if dishes or cooking utensils protrude above the top of the washing tub and the sealing gasket of the lid body does not descend to a position where it contacts the entire circumference of the opening on the top of the washing tub, the waterproof wall of the conventional dishwasher disclosed in Patent Document 1 may not be able to reduce the washing water from splashing outside the washing tub.

[0008] The present disclosure is intended to solve the above-mentioned problems, and aims to provide a dishwasher that reduces splashing of wash water outside the washing tub even when the sealing gasket of the lid body does not descend to a position where it contacts the entire circumference of the opening on the top of the washing tub. [Means for solving the problem]

[0009] The dishwasher of the present disclosure comprises a washing tub with an open top that accommodates items to be washed and allows them to be inserted and removed from the top opening; a housing with an open front that can accommodate the washing tub and support it so that it can move forward; and a lid supported by the housing and capable of covering the top opening of the washing tub in a manner that allows it to be closed.The lid has a sealing gasket on the side that closes the top opening of the washing tub, which is arranged to contact the entire circumference of the top opening of the washing tub when the top opening of the washing tub is closed, and a shielding member having at least one first shielding wall is provided at a position rearward of the sealing gasket that contacts the top opening on the rear side of the washing tub when the washing tub is completely accommodated in the housing. Effect of the Invention

[0010] In the dishwasher of the present disclosure, a sealing gasket is provided so as to contact the entire circumference of the top opening of the washing tank when the top opening is closed, and a shielding member having at least one first shielding wall is provided at a position rearward of the sealing gasket that contacts the top opening on the rear side of the washing tank when the washing tank is fully contained within the housing.This prevents washing water from inadvertently splashing, and allows the shielding member to drip it at a specified position within the housing, thereby suppressing secondary damage such as water leaking onto the floor or other surfaces due to splashing washing water. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is an external perspective view of a housing of the dishwasher showing an example of the dishwasher according to the first embodiment. [Diagram 2] FIG. 2 is an external perspective view showing an example of the dishwasher according to the first embodiment when the washing tub is pulled out from the housing. [Diagram 3] 1 is a plan view of a top opening of a washing tub of a dishwasher according to a first embodiment, as viewed from above. [Figure 4] 1 is a perspective view of a lid body of the dishwasher according to the first embodiment, seen obliquely from below. [Diagram 5] 1 is a plan view of a lid body of a dishwasher according to a first embodiment, seen from the side that closes a washing tub. [Figure 6] This is a schematic cross-sectional view of an example of a dishwasher in accordance with embodiment 1, in which a washing tub is housed in a housing and a lid body is normally closing an opening of the washing tub, cut in the front-to-back direction and viewed from the side. [Figure 7] 3 is a schematic cross-sectional view of an example of the dishwasher according to the first embodiment, showing a state in which the washing tub is completely pulled out from the housing, cut in the front-rear direction and viewed from the side. FIG. [Figure 8] 1 is a schematic cross-sectional view of an example of a dishwasher according to embodiment 1, showing a state in which a washing tub is half-housed in a housing, cut in the front-rear direction and viewed from the side. [Figure 9]This is a schematic cross-sectional view of an example of a dishwasher in embodiment 1, cut in the front-to-back direction and viewed from the side, just before the washing tub is housed in the housing and just before the lid body closes the opening of the washing tub. [Figure 10] This is a schematic cross-sectional view of an example of a dishwasher of embodiment 1 in which a washing tub is housed in the housing, but large dishes are preventing the lid from descending, and the lid is unable to properly close the opening of the washing tub, cut in the front-to-back direction and viewed from the side. [Figure 11] FIG. 11 is an enlarged view of part A shown in FIG. [Figure 12] 2 is a perspective view of the shielding member of the dishwasher according to the first embodiment, viewed obliquely from below. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Embodiment 1 Hereinafter, a dishwasher 100 according to an embodiment of the present disclosure will be described with reference to the drawings. Note that in the following drawings including Fig. 1, the relative dimensional relationship and shape of each component may differ from the actual ones. In addition, in the following drawings, the same reference numerals are used to denote the same or equivalent items, and this is common throughout the entire specification.

[0013] Embodiment 1 Fig. 1 is an external perspective view of the housing of the dishwasher showing an example of the dishwasher according to the first embodiment, Fig. 2 is an external perspective view showing an example of the dishwasher according to the first embodiment when the washing tank is pulled out from the housing, Fig. 3 is a plan view of the upper opening of the washing tank of the dishwasher according to the first embodiment seen from the top side, Fig. 4 is a perspective view of the lid of the dishwasher according to the first embodiment seen from the diagonally lower side, Fig. 5 is a plan view of the lid of the dishwasher according to the first embodiment seen from the side that closes the washing tank, Fig. 6 is a schematic cross-sectional view of an example of the dishwasher according to the first embodiment, in which the washing tank is housed in the housing and the lid normally closes the opening of the washing tank, cut in the front-rear direction and seen from the side. The configuration of each part of the dishwasher 100 will be described with reference to Figs. 1 to 6.

[0014] Note that the front-back, left-right, and up-down directions shown in Figures 1 and 2 are based on the basic directions, and when the front-back, left-right, and up-down directions are illustrated in subsequent drawings, they will be the same directions as the basic directions shown in Figures 1 and 2.

[0015] [Dishwasher 100] Dishwasher 100 according to embodiment 1 of the present invention is a dishwasher that is incorporated into, for example, kitchen furniture (system kitchen) (not shown). As shown in Figures 1 and 2, dishwasher 100 has a housing 1 that is the outer shell of dishwasher 100, and a washing tub 3 housed inside housing 1.

[0016] The dishwasher 100 also includes a cover 14 (see Figs. 4 to 6) that is provided within the housing 1 to close the top surface of the washing tub 3 and opens and closes a washing tub opening 3a on the top surface of the washing tub 3, and a door 2 that is attached to the front of the washing tub 3 and opens and closes when the washing tub 3 housed inside the housing 1 is pulled out. The dishwasher 100 also includes a control unit 15 (see Fig. 6) in the space between the front of the washing tub 3 and the door 2 that controls the operation of the dishwasher 100.

[0017] (Housing) The housing 1 is formed in a box shape, and a housing opening 1a is formed on the front side of the housing 1. The housing 1 is formed into a box shape, for example, by bending a metal plate. The housing opening 1a is an opening that penetrates the front side of the housing 1, and the door body 2 is arranged in this housing opening 1a when the cleaning tank 3 is accommodated in the housing 1.

[0018] The cleaning tank 3 is accommodated inside the housing 1 through this housing opening 1a, and is also pulled out from the housing 1 to the outside. The housing 1 and the cleaning tank 3 are slidably connected by slide rails 4 shown in Fig. 2, and the slide rails 4 enable the cleaning tank 3 to be smoothly accommodated in the housing 1 and pulled out from the housing 1.

[0019] A water supply valve (not shown) is provided inside the housing 1. The water supply valve supplies water used for cleaning or rinsing from outside the housing 1 into the cleaning tank 3 via a water supply hose (not shown), and also stops the supply of water used for cleaning or rinsing into the cleaning tank 3.

[0020] In addition, inside the housing 1, behind the cleaning tank 3, there are installed a drying heater (not shown) for heating the air to turn it into warm air, and a blower fan (not shown) for supplying the warm air into the cleaning tank 3.

[0021] The blower fan supplies air heated by the drying heater into the washing tub 3. That is, the blower fan supplies air from outside the washing tub 3 to the inside of the washing tub 3, and expels the air inside the washing tub 3 to the outside of the dishwasher 100 by the supplied air.

[0022] (Cleaning tank) The washing tub 3 is formed in a box shape, and a washing tub opening 3a is formed on the upper surface of the washing tub 3 as shown in Fig. 3. Through the washing tub opening 3a, a user can store tableware and cooking utensils 20 such as large plates 20a (see Fig. 6) and bowls 20b (see Fig. 7) in a dish basket 16 arranged inside the washing tub 3 as shown in Fig. 3, and can also remove tableware 20 from inside the washing tub 3.

[0023] The cleaning tank 3 is provided with a water level detection device (not shown) that detects the level of the water used for cleaning or rinsing stored in the cleaning tank 3, a water temperature detection device (not shown) that detects the temperature of the water used for cleaning or rinsing, and a heater 7 that heats the water used for cleaning or rinsing. In addition, a cleaning pump 6 that pressurizes the water used for cleaning or rinsing and supplies it to the cleaning nozzle 5 is provided on the outside of the bottom of the cleaning tank 3.

[0024] As described above, the water used for washing or rinsing, which is pressurized by the washing pump 6, is supplied to the washing nozzle 5. The washing nozzle 5 is disposed below the dish basket 16, more specifically, below the lower basket body 16b that constitutes the dish basket 16, as shown in FIG.

[0025] The washing nozzle 5 has a space therein through which the water used for washing or rinsing passes, is made of, for example, a resin material, and is supported so as to be rotatable in the horizontal direction. The washing nozzle 5 is further formed with a plurality of jetting holes (not shown), and the water used for washing or rinsing, which is pressurized and supplied from the washing pump 6, is jetted from the jetting holes (not shown), and the washing nozzle 5 rotates in the opposite direction to the jetting direction due to the reaction force of the jetting. As the washing nozzle 5 rotates, the water used for washing or rinsing is jetted from the jetting holes toward the tableware 20, thereby washing or rinsing the tableware 20.

[0026] (Lid) The lid 14 is provided so as to be capable of closing the cleaning tank opening 3a formed in the upper part of the cleaning tank 3 shown in Fig. 3. In more detail, a seal packing 13 provided on the underside of the lid 14 shown in Figs. 4 and 5, in other words, on the side facing the cleaning tank opening 3a, comes into contact with the entire periphery of the cleaning tank opening 3a in the closed state, and separates the inside and outside of the cleaning tank 3.

[0027] (Downward movement of the lid body associated with the movement of storing the cleaning tank in the housing) Fig. 7 is a schematic cross-sectional view of an example of the dishwasher according to the first embodiment, cut in the front-rear direction and viewed from the side, when the washing tank is completely pulled out from the housing; Fig. 8 is a schematic cross-sectional view of an example of the dishwasher according to the first embodiment, cut in the front-rear direction and viewed from the side, when the washing tank is half housed in the housing; Fig. 9 is a schematic cross-sectional view of an example of the dishwasher according to the first embodiment, cut in the front-rear direction and viewed from the side, when the washing tank is housed in the housing and the lid body is about to close the opening of the washing tank; Fig. 10 is a schematic cross-sectional view of an example of the dishwasher according to the first embodiment, cut in the front-rear direction and viewed from the side, when the washing tank is housed in the housing but large dishes prevent the lid body from descending and the lid body cannot normally close the opening of the washing tank; Fig. 11 is an enlarged view of part A shown in Fig. 10. The lowering operation of the lid body related to the housing operation of the washing tank in the housing and the situation of the clogging of the washing tank by the lid body will be described with reference to Figs. 7 to 11.

[0028] The lid body 14 is supported on the upper inner surface of the housing 1 so that it moves up and down in conjunction with the back and forth movement of pulling out and pushing in the cleaning tank 3 from the housing 1. As shown in Figure 7, when the cleaning tank 3 is completely pulled out of the housing 1, it is pulled up by the tension of the elastic body 31 and reaches a raised state close to the top surface of the housing 1.

[0029] The lid 14 moves up and down in conjunction with the forward and backward movement of pulling out and pushing in the cleaning tank 3 from the housing 1 via a link mechanism. The link mechanisms are provided toward the front and rear, and in the link mechanism toward the front, a resin roller 34a is rotatably supported by a roller support shaft 35a on a metal front link member 32, and one end of the front link member 32 is rotatably supported on the inside of the side surface of the housing 1 by a link support shaft 33a. The other end of the front link member 32 is rotatably supported by a front link member holder 14b provided on the lid 14 via a rotation shaft 14da.

[0030] In addition, in the link mechanism closer to the rear, a resin roller 34b is rotatably supported by a roller support shaft 35b on a metallic rear link member 36, and one end of the rear link member 36 is rotatably supported by a link support shaft 33b on the inside of the side surface of the housing 1. The rear link member 36 is T-shaped, and the protruding part of the T is rotatably supported by a rear link member holding portion 14c provided on the cover 14 by a rotation shaft 14db.

[0031] The other end of the rear link member 36 is connected to an elastic body 31 supported on the inner upper surface of the housing 1, and tension is applied in the direction toward the top of the housing 1, i.e., the other end of the rear link member 36, in a direction pulling it upward, so that it rotates around the link support shaft 33b as if it is being pulled upward.

[0032] The front link mechanism and the rear link mechanism are provided on the inside of the left and right side surfaces of the housing 1, and are provided in symmetrical positions when viewed from the front of the housing. As described above, the link mechanisms are supported on the inside of the side surfaces of the housing 1, but for the sake of convenience of explanation, the side surfaces of the housing 1 are omitted in Figures 6 to 10 to illustrate the link mechanisms.

[0033] As shown in Fig. 7, when the cleaning tank 3 is pulled all the way out from the housing 1, the lid 14 is raised to the uppermost position. During the process of pushing the cleaning tank 3 into the housing 1, even when the cleaning tank 3 is pushed about halfway into the housing 1 as shown in Fig. 8, the lid 14 still remains in the uppermost position and does not move down.

[0034] As shown in Figure 9, when the cleaning tank 3 is pushed in just before being accommodated within the housing 1, the inclined portion 3ba, which is inclined so as to descend toward the front of the housing 1 below the front lid closing portion 3b provided on the outer side of the cleaning tank 3, comes into contact with the roller 34a of the front link member 32 of the link mechanism closer to the front, and at the same time, the inclined portion 3ca, which is inclined so as to descend toward the front of the housing 1 below the rear lid closing portion 3c, comes into contact with the roller 34b of the rear link member 36 of the link mechanism closer to the rear.

[0035] The inclined portions 3ba and 3ca are provided on the outer left and right side surfaces of the cleaning tank 3, and are provided in symmetrical positions when viewed from the front side of the housing. Note that since the inclined portions 3ba and 3ca are provided on the outer left and right side surfaces of the cleaning tank 3, they do not actually appear in the cross-sectional views of Figures 6 to 10, but for the sake of convenience in the explanation here, it should be noted that the inclined portions 3ba and 3ca are virtually shown in Figures 6 to 10.

[0036] After the inclined portion 3ba comes into contact with the roller 34a of the front link member 32, and the inclined portion 3ca comes into contact with the roller 34b of the rear link member 36, when the cleaning tank 3 is further pushed in the direction in which it is accommodated within the housing 1 (rearward), the roller 34a descends along the slope of the inclined portion 3ba, and the roller 34b descends along the slope of the inclined portion 3ca.

[0037] As described above, the roller 34a is journaled to the front link member 32 by the roller support shaft 35a, one end of the front link member 32 is rotatably supported on the inside of the side surface of the housing 1 by the link support shaft 33a, and the other end is rotatably supported by the pivot shaft 14da to the front link member holder 14b provided on the lid 14. Thus, as the roller 34a descends along the inclination of the inclined portion 3ba, the front link member 32 descends with the link support shaft 33a as a fulcrum, and the pivot shaft 14da on which the front link member holder 14b provided on the lid 14 and the front link member 32 are journaled descends while moving backward in an arc.

[0038] Similarly, roller 34b is journaled to rear link member 36 by roller support shaft 35b, one end of rear link member 36 is journaled to the inside of the side surface of housing 1 by link support shaft 33b, and the protruding portion of the T-shape is journaled to rear link member holder 14b provided on cover 14 by pivot shaft 14db. As a result, roller 34b descends along the inclination of inclined portion 3ca, rear link member 36 descends with link support shaft 33b as a fulcrum, and rear link member holder 14c provided on cover 14 and pivot shaft 14db on which rear link member 36 is journaled descend while moving backward in an arc.

[0039] This movement also causes the lid 14 to move downwards while drawing an arc toward the rear. In this way, when the cleaning tank 3 is completely housed within the housing 1, the lid 14 descends to its lowest position, and when it reaches its lowest position, the end of the cleaning tank opening 3a and the seal packing 13 provided on the side of the lid 14 facing the cleaning tank opening 3a are pressed against and come into contact with the cleaning tank opening 3a (see FIG. 6), and the seal packing 13 is pressed against and comes into contact with the entire circumference of the cleaning tank opening 3a, thereby separating the inside and outside of the cleaning tank 3 and closing the cleaning tank 3.

[0040] As shown in Figure 6, if tableware such as large plates 20a are properly stored in the dish basket 16, or more specifically, in the lower basket body 16b of the dish basket 16, in other words, if the tableware is stored so as not to interfere with each other when the lid body 14 is lowered to its lowest position, the washing tank opening 3a will be properly closed and the water used for washing will not splash out of the washing tank 3.

[0041] However, if larger dishes than expected are placed inside, or if cooking utensils such as a ladle or a thin cutting board are placed on top of the dishes, the dishes may get in the way, preventing the lid 14 from descending to its lowest position, and the sealing gasket 13 of the lid 14 may not be able to close the washing tank opening 3a.

[0042] 6, the lid 14 is provided with a dish regulating wall 14a around the entire circumference, inside the seal packing 13 on the side that closes the washing tank 3. When the lid 14 is lowered to the lowest position and the washing tank opening 3a is properly closed, the lowest end of the dish regulating wall 14a enters the washing tank 3 and is located below the surface of the washing tank opening 3a of the washing tank 3.

[0043] As a result, dish regulating wall 14a interferes with dishes that protrude slightly above the surface of washing tank opening 3a of washing tank 3, causing an uncomfortable feeling when the user pushes washing tank 3 into housing 1, such as it feeling heavier than usual.This uncomfortable feeling helps the user realize that the dishes are not stored correctly, but dish regulating wall 14a cannot 100% cope with dishes that are not stored correctly.

[0044] As shown in Figures 7 to 9, if something such as a thin cutting board 20c is placed above the washing tank opening 3a of the washing tank 3, as described above, the lid body 14 will move backwards in an arc as it descends, so that the thin cutting board 20c will already have passed the position where the dish control wall 14a will ultimately descend, as shown in Figure 9.

[0045] When the user pushes the washing tub 3 into the housing 1 in this state, it feels heavier than normal and uncomfortable, but is not so heavy that it cannot be pushed in. If the user pushes it in like this, the dish basket 16 is made of thin wire and is easily deformed when a load is applied, and the lid 14 is made of resin and will also deform when a load is applied.

[0046] Therefore, as shown in Figure 11 (an enlarged view of part A shown in Figure 10), the thin cutting board 20c gets sandwiched under the sealing gasket 13, causing the dish basket 16 to deform and the lid 14 to also deform, resulting in the cutting board being housed within the housing 1 even though the washing tub opening 3a of the washing tub 3 is not properly closed.

[0047] In this way, if the cleaning tank opening 3a of the cleaning tank 3 is not properly closed, a gap 40 will be formed, for example, as shown in Fig. 11. When a gap is formed, the width of the cleaning tank 3 in the left-right direction is narrow as shown in Fig. 3, and therefore there is no distance from the cleaning nozzle 5 to the left-right inner wall surfaces of the cleaning tank 3, making it difficult for the cleaning water or rinsing water sprayed from the cleaning nozzle 5 to be sprayed to a position where it will exit from the cleaning tank opening 3a of the cleaning tank 3.

[0048] In contrast, the front-to-back direction of the cleaning tank 3 is wider than the left-to-right direction, and there is a distance from the cleaning nozzle 5 to the front-to-rear inner wall surfaces of the cleaning tank 3, so there is a risk that the cleaning water or rinsing water sprayed from the cleaning nozzle 5 will be sprayed at a position where it will escape from the cleaning tank opening 3a of the cleaning tank 3.

[0049] 10, even if cleaning water or rinsing water comes out from inside the cleaning tank 3, the front edge 3d of the cleaning tank extends to the door body 2, so that the water will not come out from the cleaning tank 3 into the housing 1. In addition, since the front side is inclined so that it is higher toward the front, the water that comes out can easily return to the cleaning tank 3.

[0050] On the other hand, the rear side of the cleaning tank 3 is located in an open space inside the housing 1, so cleaning water or rinsing water is likely to leak out from inside the cleaning tank 3. For this reason, a shielding member 24 is provided facing downward from the top surface of the housing 1, as shown in FIG.

[0051] The shielding member 24 is made of resin, and as shown in Fig. 12, first shielding walls 24a are provided so as to extend vertically from an upper plate 24e. Here, two first shielding walls 24a are provided, but one may be provided. As shown in Fig. 11, the upper plate 24e is attached to the inner upper plate of the housing 1 when attached to the housing 1, and in other words, the two first shielding walls 24a are provided so as to extend vertically downward from the upper plate 24e.

[0052] The second shielding wall 24b is also provided so as to extend vertically downward from the top plate 24e. In terms of the front-rear direction of the housing 1, the first shielding wall 24a is provided closer to the front side, and the second shielding wall 24b is provided closer to the rear side. Since the first shielding wall 24a and the second shielding wall 24b are configured to extend from the top plate 24e, the left and right side walls 24c of the shielding member are formed so as to connect the top plate 24e to the first shielding wall 24a and the second shielding wall 24b, and the shielding wall is made box-shaped to ensure strength. In addition, the first shielding wall 24a and the second shielding wall 24b are connected by a reinforcing rib 24d to increase strength.

[0053] 11, when the shielding member 24 is attached to the plate on the inner top surface of the housing 1, at least the lowermost end 24aa of the first shielding wall 24a, which is closer to the inside of the cleaning tank and closer to the front side, is located above the inclined portion 3f provided on the outer edge of the cleaning tank opening 3a and is not in contact with the cleaning tank 3, but is provided near the upper surface of the cleaning tank 3 to narrow the gap 40. This prevents the cleaning water or rinsing water from leaking out of the cleaning tank 3 through the gap 40.

[0054] In addition, in this description, another first shielding wall 24a is provided toward the rear, and the front surface of the first shielding wall 24a toward the rear is located forward of the rearmost portion of the rear edge portion 3e of the cleaning tank, thereby preventing cleaning water or rinsing water that slips through the first shielding wall 24a toward the front from leaking out of the cleaning tank 3.

[0055] 7, when the washing tank 3 starts to be pushed into the housing 1, the bottom end 24aa of the first shielding wall 24a is located vertically lower than the bottom end of the dish regulating wall 14a. As a result, as shown in FIG. 11, the movement of an object such as the thin cutting board 20c is restricted by the first shielding wall 24a, and the object is prevented from protruding rearward beyond the first shielding wall 24a.

[0056] Furthermore, although not shown, for example, thin cutting board 20c is soft and easily deformed, so even if it protrudes upward along inclined portion 3f provided on the outer edge of washing tub opening 3a, it will get caught on notch 25 provided in reinforcing rib 24d between first shielding wall 24a toward the front and first shielding wall 24a toward the rear, or its movement will be restricted by first shielding wall 24a toward the rear, preventing tableware such as thin cutting board 20c from protruding outside rear edge 3e of washing tub 3.

[0057] Furthermore, in the unlikely event that something like a thin cutting board 20c gets to a position where it is sandwiched between the cleaning tank 3 and the first shielding wall 24a, the presence of the first shielding wall 24a creates a large resistance to pushing the cleaning tank 3 into the housing 1, and the load is different from normal, making it easy for the user to notice that something is not normal.

[0058] Furthermore, a second shielding wall 24b is provided on the shielding member 24. A bottom end 24ba of the second shielding wall 24b is located lower than the upper surface of the rear edge portion 3e of the cleaning tank in the up-down direction.

[0059] Therefore, even if the washing water or rinsing water passes through the first shielding wall 24a near the front side and the first shielding wall 24a near the rear side, the second shielding wall 24b prevents the washing water or rinsing water from splashing on the rear surface of the housing 1 made of metal. If the washing water or rinsing water reaches the second shielding wall 24b, the washing water or rinsing water received by the second shielding wall 24b drips along the bottom end 24ba of the second shielding wall 24b, and the water leakage detection means 50 is provided at the dripping location as shown in Fig. 10. Therefore, by dripping the washing water or rinsing water near the water leakage detection means 50, the water leakage detection becomes more responsive, and by detecting the water leakage at an early stage, secondary damage such as water leakage onto the kitchen floor can be prevented.

[0060] According to the present disclosure as described above, a shielding member 24 is provided on the inner upper surface of housing 1, and the lowest end 24aa of first shielding wall 24a of shielding member 24 is positioned vertically lower than the lowest end of dish regulating wall 14a of lid body 14. As a result, a dishwasher can be provided in which the movement of an object such as thin cutting board 20c is restricted by first shielding wall 24a, and the object is prevented from moving rearward from first shielding wall 24a, in other words, dishware such as thin cutting board 20c is prevented from moving outside rear edge portion 3e of washing tub 3.

[0061] In addition, the bottom end 24ba of the second shielding wall 24b of the shielding member 24 is positioned vertically lower than the upper surface of the rear edge portion 3e of the washing tank, so that the second shielding wall 24b does not hang over the rear surface of the housing 1 made of metal. Furthermore, even if the washing water or rinsing water reaches the second shielding wall 24b, the washing water or rinsing water drips along the bottom end 24ba of the second shielding wall 24b and drips near the water leakage detection means 50, making the water leakage detection more responsive. By detecting water leakage at an early stage, a dishwasher can be provided that can prevent secondary damage such as water leakage onto the kitchen floor. [Explanation of symbols]

[0062] 1 housing, 1a housing opening, 2 door body, 3 cleaning tank, 3a cleaning tank opening, 3b front cover closing portion, 3ba inclined portion, 3c rear cover closing portion, 3ca inclined portion, 3d cleaning tank front edge portion, 3e cleaning tank rear edge portion, 3f inclined portion, 4 slide rail, 4a movable rail, 4b fixed rail, 5 cleaning nozzle, 6 cleaning pump, 7 heater, 13 seal packing, 14 cover body, 14a dish regulating wall, 14b front link member holding portion, 14c rear link member holding portion, 14da rotating shaft, 14db rotating shaft, 15 control unit, 16 dish basket, 16a upper basket body, 16b lower basket body, 20a large plate, 20b bowl, 20c thin cutting board, 24 shielding member, 24a First shielding wall, 24aa bottom end of the first shielding wall, 24b second shielding wall, 24ba bottom end of the second shielding wall, 24c left and right side walls of the shielding member, 24d reinforcing rib, 24e top plate, 25 cutout portion, 31 elastic body, 32 front link member, 33a link support shaft, 33b link support shaft, 34a roller, 35a roller support shaft, 34b roller, 35b roller support shaft, 36 rear link member, 40 gap, 50 water leak detection means, 100 dishwasher.

Claims

1. a cleaning tank having an open top and accommodating an object to be cleaned in the cleaning tank so that the object can be taken in and out through the open top; a housing having an open front surface that can house the cleaning tank and support the cleaning tank so as to be movable forward; a cover supported by the housing and configured to closeably cover the top opening of the cleaning tank, a seal packing provided on a surface side of the lid that closes the top opening of the cleaning tank so as to come into contact with an entire periphery of the top opening of the cleaning tank when the top opening of the cleaning tank is closed; A dishwasher in which a shielding member having at least one first shielding wall is provided at a position rearward of the sealing gasket that contacts the top opening on the rear side of the washing tank when the washing tank is completely contained within the housing.

2. 2. The dishwasher according to claim 1, wherein the shielding member is provided on an upper portion of the housing, and the first shielding wall is provided so as to extend downward from the upper portion of the housing.

3. the lid is supported by the housing so as to rise when the cleaning tank is pulled forward from the housing and to fall when the cleaning tank is pushed into the housing; The cover has a dish regulating wall on a surface side that closes the top opening of the washing tank, the dish regulating wall being provided so as to enter the washing tank when closing the top opening of the washing tank, A dishwasher as described in claim 1 or claim 2, wherein when the cleaning tank is pulled out to its maximum extent from the housing and the cleaning tank begins to be pushed into the housing, the bottom end of the first shielding wall is positioned lower than the bottom end of the dish regulating wall.

4. The shielding member has a second shielding wall, The dishwasher according to claim 3, wherein when the washing tub is completely housed within the housing, the lowermost end of the second shielding wall is located below the open upper surface of the washing tub.

Citation Information

Patent Citations

  • Dishwasher

    JP2010252883A

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