JP2023062222A - Dishwasher - Google Patents

Abstract

To provide a dishwasher that prevents a member for supporting an upper basket from blocking washing water upward by moving the member when not necessary.SOLUTION: A dishwasher includes: a washing tank whose top face is open for storing objects to be washed so as to take them in and out through the top face opening; an upper basket body and a lower basket body disposed in the washing tank, in which the objects to be washed are placed and stored; a lid body for covering the top face opening of the washing tank so as to close it; a washing pump for pressuring and circulating washing water used for washing the objects to be washed; and a rotatable washing nozzle for jetting washing water pressurized by the washing pump onto the objects to be washed. The washing nozzle has a tower nozzle disposed protruding vertically upward at the central part, and a nozzle guard for protecting the tower nozzle so that the objects to be washed do not come in contact with the tower nozzle is disposed in the lower basket body so as to surround the outer periphery of the tower nozzle. The nozzle guard is composed of a plurality of members, and an upper member movable vertically upward of the plurality of members supports the upper basket body when moved vertically upward.SELECTED DRAWING: Figure 7

Description

The present disclosure relates to a dishwasher that cleans and dries dishes.

Dishwashers that wash and dry dishes have traditionally been of the type in which the objects to be washed, such as dishes, are placed in a dish basket, and the washing nozzle repeatedly jets the water used for washing or rinsing onto the objects to be washed. is known as one form (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2008-73400

A conventional dishwasher disclosed in Patent Document 1 includes an upper basket body and a lower basket body for accommodating tableware to be washed in a washing tank, and a tower extending vertically upward near the center of the washing tank. A nozzle of the mold is provided. A fixed support for supporting the upper cage body is provided outside the tower nozzle.

The upper basket body is movable, and when large tableware is stored in the lower basket body, it can be flipped up and held near the side wall of the washing tank without using the upper basket body. When tableware such as cups is stored, the upper basket body is moved to a position where the tableware can be placed.

In the conventional dishwasher disclosed in Patent Document 1, the support member is formed outside the tower-type nozzle in a fixed state, neither movable nor detachable. Also, the indicator is present at a fixed position. Therefore, the sprayed water used for washing or rinsing is always blocked at the same position by the member constituting the support part, so the direction of spraying water used for washing or rinsing and the arrangement of the tableware should be set. making it difficult.

The present disclosure solves the above-mentioned problems, and provides a dishwasher in which the member supporting the upper basket body is moved when unnecessary so as not to block the water used for upward washing or rinsing. for the purpose.

The dishwasher according to the present disclosure includes a washing tank having an open upper surface and containing the objects to be washed so that they can be taken in and out from the inside through the upper opening, and an upper basket arranged in the washing tank for accommodating the objects to be washed. a body and a lower cage body, a cover capable of closing the top opening of the cleaning tank, a cleaning pump for pressurizing and circulating cleaning water used for cleaning the object to be cleaned, and cleaning water pressurized by the cleaning pump. and a rotatable washing nozzle for spraying an object to be washed, and a tower nozzle protruding vertically upward at the center of the washing nozzle so that the object to be washed does not come into contact with the tower nozzle. A nozzle guard for protecting the tower nozzle is provided on the lower cage body so as to surround the outer periphery of the tower nozzle, and the nozzle guard is composed of a plurality of members, and among the plurality of members, the upper member that can move vertically upward It supports the upper car body when moved vertically upward.

According to the dishwasher according to the present disclosure, the nozzle guard provided to surround the outer periphery of the tower nozzle is composed of a plurality of members, and among the plurality of members, the upper member that can move vertically upward Since the upper cage body is supported when the upper cage body is moved upward, it is not necessary to move the vertically upward movable upper member of the nozzle guard vertically upward when the upper cage body is not used. When a large object to be washed is housed and washed without using the body, the water used for washing or rinsing that is jetted obliquely upward from the tower nozzle is not blocked, and the upper part of the large object to be washed is not blocked. Washing water can be emitted even in this case, and the washing performance does not deteriorate.

1 is an external perspective view of a housing of a dishwasher, showing an example of the dishwasher according to Embodiment 1. FIG. 1 is an external perspective view showing an example when a washing tank is pulled out from the housing of the dishwasher according to Embodiment 1. FIG. FIG. 2 is a schematic diagram showing a cross section from the lateral direction of the dishwasher according to Embodiment 1 cut in the front-rear direction. FIG. 2 is a perspective view showing an example of a partially cut wall surface of the washing tub of the dishwasher according to Embodiment 1; FIG. 4 is a plan view showing an example of a state in which the lower basket body is accommodated in the washing tub of the dishwasher according to Embodiment 1, viewed from above the opening of the washing tub. FIG. 4 is a plan view showing an example of a state in which the lower basket body and the upper basket body are housed in the washing tub of the dishwasher according to Embodiment 1, viewed from above the opening of the washing tub. The relationship between the lower basket body of the dishwasher according to Embodiment 1 and the state in which the upper member of the nozzle guard provided on the lower basket body is moved upward to support the upper basket body and the washing nozzle can be simplified. It is a perspective view schematically represented. From FIG. 6, one of the upper cage bodies is folded, one of the upper members of the nozzle guard provided on the lower cage body is moved downward, and one of the upper cage bodies is moved upward while the other is moved upward. It is a perspective view simply showing the relationship between the supported state and the cleaning nozzle. FIG. 7 is a perspective view simply showing the relationship with the cleaning nozzles by removing the upper cage body from FIG. 6 and moving downward the upper member of the nozzle guard provided on the lower cage body. FIG. 2 is a schematic diagram showing an image of jetting water from nozzles in a cross section taken from the side of the dishwasher according to Embodiment 1 cut in the front-rear direction.

Embodiment 1.
A dishwasher 100 according to an embodiment of the present disclosure will be described below with reference to the drawings. In the following drawings including FIG. 1, the relative dimensional relationship and shape of each constituent member may differ from the actual ones. Moreover, in the following drawings, the same reference numerals denote the same or corresponding parts, and this applies throughout the specification.

Embodiment 1.
FIG. 1 is an external perspective view of the housing of the dishwasher, showing an example of the dishwasher according to Embodiment 1, and FIG. FIG. 3 is a schematic diagram showing a cross section from the lateral direction of the dishwasher according to Embodiment 1 cut in the front-rear direction, and FIG. 4 is a tableware according to Embodiment 1. FIG. 5 is a perspective view showing an example when a wall surface of a washing tank of a washing machine is partially cut away, and FIG. FIG. 6 is a plan view showing an example when viewed from above the opening, and FIG. 6 shows a state in which the lower basket body and the upper basket body are accommodated in the washing tank of the dishwasher according to Embodiment 1, viewed from above the washing tank opening. FIG. 7 is a plan view showing an example when the upper basket body is moved upward by moving the lower basket body of the dishwasher according to Embodiment 1 and the upper member of the nozzle guard provided on the lower basket body. FIG. 8 is a perspective view simply showing the relationship between the supporting state and the washing nozzles. 9 is a perspective view simply showing the relationship between the washing nozzles and the state in which one of the upper cage bodies is supported while the other is moved downward and the other is moved upward; FIG. 10 is a perspective view simply showing the relationship with the washing nozzle by removing the upper basket body from the lower basket body and moving the upper member of the nozzle guard provided on the lower basket body downward. FIG. FIG. 4 is a schematic diagram showing an image of water jetting from nozzles in a cross section taken from a side surface of the washing machine cut in the front-rear direction. The configuration of each part of the dishwasher 100 will be described with reference to FIGS. 1 to 10. FIG. 7 to 9 show the relationship between the dish basket 16 and the washing nozzles 5 in the washing tank 3, but for the sake of convenience of explanation, the washing tank 3 is omitted. I'll tell you.

1 and 2 are basically the directions shown in FIGS. 1 and 2, and when front and rear, left and right, and up and down are shown in the drawings below, they are the same directions as the basic directions shown in FIGS. 1 and 2. do.

[Dishwasher 100]
A dishwasher 100 according to Embodiment 1 of the present invention is, for example, a dishwasher that is used by being incorporated in kitchen furniture (system kitchen) not shown. As shown in FIGS. 1 and 2 , the dishwasher 100 has a housing 1 that serves as an outer shell of the dishwasher 100 and a washing tank 3 housed inside the housing 1 .

A cover 14 is provided on the upper surface of the cleaning tank 3 and opens and closes the cleaning tank opening 3 a on the upper surface of the cleaning tank 3 , and a cleaning lid 14 is attached to the front of the cleaning tank 3 and accommodated inside the housing 1 . and a door body 2 that opens and closes when the tank 3 is drawn out. Furthermore, the dishwasher 100 is provided with a control unit 15 for controlling the operation of the dishwasher 100 in the space between the front of the washing tub 3 and the door 2 .

(Case)
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 by, for example, bending a metal plate. The housing opening 1a is an opening passing through the front surface of the housing 1, and the door 2 is arranged in the housing opening 1a.

The cleaning tank 3 is accommodated inside the housing 1 through the housing opening 1a, and is pulled out from the housing 1 to the outside. The housing 1 and the cleaning tank 3 are slidably connected by the slide rails 4 shown in FIG. can do

A water supply valve 11 is provided inside the housing 1 . A water supply valve 11 supplies water used for washing or rinsing from the outside of the housing 1 into the washing tank 3 through a water supply hose 12, and also supplies water used for washing or rinsing into the washing tank 3. This is the valve that stops the supply.

Inside the housing 1, behind the cleaning tank 3, there are provided a drying heater 9 for heating the air into warm air, and a blower fan 10 for supplying the hot air into the cleaning tank 3. and are attached respectively.

The blower fan 10 supplies the air warmed by the drying heater 9 into the cleaning tank 3 . That is, the blower fan 10 supplies air outside the washing tub 3 to the inside of the washing tub 3 and exhausts the air inside the washing tub 3 to the outside of the dishwasher 100 by the supplied air.

(Washing tank)
The cleaning tank 3 is formed in the shape of a box, and the upper surface of the cleaning tank 3 is formed with a cleaning tank opening 3a. The washing tank opening 3a is an opening formed in the upper surface of the washing tank 3, and the user can reach the dish basket 16 arranged inside the washing tank 3 as shown in FIG. 3 through the washing tank opening 3a. Tableware 20 such as plates and bowls can be stored, and the tableware 20 can be taken out from the inside of the washing tank 3.

The washing tank 3 includes a water level detection device 18 for detecting the water level of the water used for washing or rinsing stored in the washing tank 3, a water temperature detection device 19 for detecting the temperature of the water used for washing or rinsing, A heater 7 is provided for heating the water used for washing or rinsing. A washing pump 6 for pressurizing water used for washing or rinsing and supplying it to the washing nozzles 5 is provided outside the bottom of the washing tank 5 .

The water used for washing or rinsing pressurized by the washing pump 6 as described above is supplied to the washing nozzles 5 . The washing nozzle 5 is arranged below the dish basket 16 , more specifically, below the lower basket body 16 b that constitutes the dish basket 16 .

The cleaning nozzle 5 has a space therein through which water used for cleaning or rinsing passes, and is made of, for example, a resin material. Further, a plurality of injection holes 5b are formed in the washing nozzle 5, and the water used for washing or rinsing supplied under pressure from the washing pump 6 is injected from the injection holes 5b.

The cleaning nozzle 5 is then rotatably supported on the shaft structure 50 . When the water used for washing or rinsing sent under pressure from the washing pump 6 passes through the shaft structure 50 and reaches the washing nozzle 5, the washing nozzle 5 is ejected from the plurality of injection holes 5b in the lateral direction. It rotates in the opposite direction to the jetting direction due to the reaction force of the water used for washing or rinsing jetted from the jetting hole 5b. While the washing nozzle 5 rotates, the water used for washing or rinsing is jetted toward the tableware 20 from the injection holes 5b, and the tableware 20 is washed or rinsed.

Further, similarly to the cleaning pump 6, a drainage pump 8 is provided outside the bottom of the cleaning tank 5. As shown in FIG. The drain pump 8 drains the water used for cleaning or rinsing stored in the cleaning tank 3 to the outside of the cleaning tank 3 through the drain hose 13 .

The housing 1 is provided with a holding mechanism 30 for holding the cleaning tank 3 inside the housing 1 as shown in FIG. 3 so that the cleaning tank 3 does not move forward unless it is required. When the cleaning tank 3 is pushed from the front to the rear of the housing 1 to a predetermined holding position, the cleaning tank 3 is held at the predetermined position by the holding mechanism 30 . At this time, the holding mechanism 30 is biased by an elastic body 31 such as a spring with a force opposite to the direction in which the cleaning tank 20 is pulled out (forward direction), thereby holding the cleaning tank 20 within the housing 10. can do.

(Lid body)
The cover 14 is provided so as to be able to open and close the cleaning tank opening 3a formed in the upper part of the cleaning tank 3, and separates the inside and the outside of the cleaning tank 3 in the closed state. The lid 14 is provided on the upper inner surface of the housing 1 . One end of a link mechanism (not shown) is attached to the lid 14 , and the other end of the link mechanism is attached to the upper inner surface of the housing 1 .

By this link mechanism, the cover 14 is lifted when the cleaning tank 3 is pulled out from the housing 1 to open the cleaning tank opening 3a of the cleaning tank 3, and the cleaning tank 3 is housed in the housing 1. Then, it descends to close the cleaning tank opening 3a of the cleaning tank 3. As shown in FIG. In addition, the lid 14 is configured by a link mechanism so that when the cleaning tank 3 is pulled out from the housing 1, the lid 14 is not pulled out from the housing 1 together with the cleaning tank 3, in other words, it stays within the housing 1. It is configured.

(door body)
As shown in FIGS. 1 to 3, a door 2 is provided on the front side of the dishwasher 100. As shown in FIGS. The door 2 is attached to the front of the cleaning tank 3 and covers the housing opening 1 a of the housing 1 . A handle portion (not shown) is provided on the upper portion of the door 2 so as to hold a hand when pulling out the cleaning tank 3 from the housing 1 to the front side.

Further, the door 2 is provided with an operation portion (not shown). The operation section receives an input of an operation instruction from the user and outputs an operation signal corresponding to the instruction to the control section unit 15 . The operation unit is provided with a power switch for turning on the power of the dishwasher 100 and an operation switch for starting or temporarily stopping the operation of the dishwasher 100 .

(control unit)
Although not shown, the control unit 15 is, for example, dedicated hardware, or a CPU (Central Processing Unit, central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, processor) is housed in a case. The control section unit 15 controls the operation of each device that constitutes the dishwasher 100 .

The control unit 15 receives information detected by the water level detection device 18 and the water temperature detection device 19 . The controller unit 15 controls the water supply valve 11, the washing pump 6, the heater 7, the drain pump 8, the blower fan 10, the drying heater 9, and the like.

(dish basket)
The dish basket 16 is schematically and simply shown in FIGS. 3 and 10, but as shown in FIGS. 4, 7 and 8, the dish basket 16 is composed of a lower basket body 16b and an upper basket body 16a. be done. The lower cage body 16b and the upper cage body 16a can be attached to and detached from the washing tank 3 independently.

The upper car body 16a further comprises an independently movable upper car body 1 (first upper car body of the present disclosure) 16a1 and upper car body 2 (second upper car body of the present disclosure) 16a2. be. In the following description, when describing the upper car body 1 (the first upper car body of the present disclosure) 16a1 and the upper car body 2 (the second upper car body of the present disclosure) 16a2 as a set, It may be described as an upper cage body 16a.

As shown in FIG. 5, first, the lower cage body 16b is installed in the washing tank 3. As shown in FIG. Next, as shown in FIG. 6, the upper car body 16a is installed. The upper car body 16a is integral, but as shown in FIG. 8, the upper car body 1 (first upper car body of the present disclosure) 16a1 and the upper car body 2 (main car body) are mounted around the upper car rotating shaft 16a3. The disclosed second upper cage body) 16a2 is independently rotatable.

Tableware 20 is also schematically and simply shown in FIGS. 3 and 10, and includes large plates, small plates, bowls, soup bowls, teacups, cups, chopsticks, and the like. Although the details of the tableware 20 are not shown, large plates, small plates, rice bowls, soup bowls, chopsticks, etc. are accommodated in the lower basket 16b, and teacups, cups, etc. are accommodated in the upper basket 16a.

7 to 9 illustrate the relationship between the dish basket 16 and the washing nozzles 5 in the washing tank 3, and the washing tank 3 is omitted for convenience of explanation. As shown in FIGS. 4 and 7 to 9, a tower nozzle 5a is provided vertically upward in the central portion of the cleaning nozzle 5. As shown in FIG.

The tower nozzle 5a is used for washing or rinsing tall tableware 20 such as a teacup, a cup, etc. housed in the upper basket body 16a or a large plate housed in the lower basket body 16b in the deep washing tank 3. It is provided so that the water to be used can be easily splashed.

As shown in FIGS. 7 to 9, the tower nozzle 5a protrudes vertically upward from the central portion of the washing nozzle 5, passing through the lower cage body 16b. Therefore, the tableware 20 is not accommodated in the portion through which the tower nozzle 5a of the lower basket body 16b passes.

In addition, the tower nozzle 5a is designed so that the tableware 20 stored in the lower basket body 16b does not come into contact with the tower nozzle 5a and hinder the rotation of the washing nozzle 5 or hinder the jetting of water used for washing or rinsing. A nozzle guard 17 is provided on the lower cage body 16b so as to surround the outer periphery of the nozzle. The nozzle guard is made of resin material, for example.

The nozzle guard 17 is composed of a plurality of members, and has a nozzle guard base member 17b fixed to the lower cage body 16b and an upper member 17a vertically movable. Further, the upper member 17a is composed of an upper member 1 (first upper member of the present disclosure) 17a1 and an upper member 2 (second upper member of the present disclosure) 17a2, which are independently and individually vertically movable. there is In the following description, when describing the upper member 1 (first upper member of the present disclosure) 17a1 and the upper member 2 (second upper member of the present disclosure) 17a2 as a set, the upper member 17a may be described.

As shown in FIG. 7, when the upper member 17a is moved vertically upward, it is fixed at that position by a fixing means (not shown) to receive and support the upper car body 16a. Since it is necessary to receive and support the upper car body 16a, when the upper member 17a is moved upward in the vertical direction to a position where the upper car body 16a can be supported, the upper car body 16a does not come into contact with the tower nozzle 5a. The part that receives the cage 16a moves to a position higher than the tip of the tower nozzle 5a.

Therefore, of the water used for washing or rinsing sprayed from the tower nozzle spray hole 5a1 shown in FIG. 9, part of the water sprayed diagonally upward may be blocked by the upper member 17a. It is necessary to consider the arrangement so that the water used for rinsing hits the tableware 20 efficiently.

As described above, the upper car body 16a rotates about the upper car rotating shaft 16a3, and the upper car body 1 (the first upper car body of the present disclosure) 16a1 and the upper car body 2 (the second upper car of the present disclosure). The upper member 17a includes an upper member 1 (first upper member of the present disclosure) 17a1 and an upper member 2 (second upper member of the present disclosure) 17a2 that are independently rotatable. It is possible to move up and down in the vertical direction.

Therefore, as shown in FIG. 8, when there is no need to use the upper car body 1 (the first upper car body of the present disclosure) 16a1, the upper car body 1 (the main The disclosed first upper car body 16a1 can be rotated upward.

The upper member 1 (first upper member of the present disclosure) 17a1 that receives and supports the upper car body 1 (the first upper car body of the present disclosure) 16a1 is the upper car body 1 (the first upper car of the present disclosure) Since there is no need to receive the car body 16a1 (the first upper car body of the present disclosure), there is no need to maintain the portion receiving the car body 1 (first upper car body) 16a1 at a position higher than the tip of the tower nozzle 5a. , as shown in FIG. 8, it can be moved downward to the lowest position in the vertical direction within the movable range.

FIG. 9 shows a state in which the upper car body 16a is not used and attached. As shown in FIG. 9, when the upper cage body 16a is not used, the upper member 17a of the nozzle guard 17 can be moved downward to the lowest position in the vertical direction. In this way, the upper member 17a of the nozzle guard 17 can be adjusted to a position where it can support at least the upper cage body 16a and a position where it can be vertically fixed to the lowest position in the vertical direction within a movable range. It's becoming

When the upper member 17a is moved to the lowest position in the vertical direction within the movable range, the tip of the tower nozzle 5a and the tower nozzle injection hole 5a1 provided in the tower nozzle 5a are opened as shown in FIG. It comes to be exposed above the upper member 17a.

That is, by moving the upper member 17a to the lowest position in the vertical direction within the movable range, the tower nozzle injection hole 5a1 is exposed above the upper member 17a, and the nozzle is injected from the tower nozzle injection hole 5a1. This means that the water used for washing or rinsing can be unobstructed.

Since there is nothing blocking the water used for washing or rinsing sprayed from the tower nozzle injection holes 5a1, as shown in FIG. , even for tall tableware 20 such as a platter housed in the lower basket body 16b, the water is jetted upward without obstruction, and the water used for washing or rinsing is abundantly supplied to the tableware 20. can be assigned to

According to the present disclosure as described above, the upper member 17a of the nozzle guard 17 that receives and supports the upper cage body 16a is moved downward to the lowest position in the vertical direction when the upper cage body 16a is not in use. As a result, the water used for washing or rinsing sprayed from the tower nozzle spray hole 5a1 provided in the tower nozzle 5a is blocked up to the tall tableware 20. Therefore, it is possible to provide a dishwasher capable of improving washing performance by spraying the tableware 20 abundantly with water used for washing or rinsing.

1 housing, 1a housing opening, 2 door, 3 washing tank, 3a washing tank opening, 4 slide rail, 5 washing nozzle, 5a tower nozzle, 5a1 tower nozzle injection hole, 5b injection hole, 6 washing pump, 7 heater , 8 drainage pump, 9 drying heater, 10 fan, 11 water supply valve, 12 water supply hose, 13 drainage hose, 14 lid, 15 control unit, 16 dish basket, 16a upper basket body, 16a1 upper basket body 1 ( first upper car body), 16a2 upper car body 2 (second upper car body), 16a3 upper car rotating shaft, 16b lower car body, 17 nozzle guard, 17a upper member, 17a1 upper member 1 (first upper member), 17a2 upper member 2 (second upper member), 17b nozzle guard base member, 18 water level detection device, 19 water temperature detection device, 20 tableware, 30 holding mechanism, 31 elastic body, 50 shaft structure, 100 tableware washing machine.

Claims (3)

a cleaning tank having an open upper surface and containing objects to be cleaned so as to be able to be taken in and out from the upper opening;
an upper basket body and a lower basket body which are arranged in the cleaning tank and respectively accommodate the objects to be cleaned;
a lid that covers the upper opening of the cleaning tank so as to be able to be closed;
a washing pump for pressurizing and circulating washing water used for washing the object to be washed;
a rotatable washing nozzle for injecting the washing water pressurized by the washing pump onto the object to be washed;
A central part of the washing nozzle has a tower nozzle projecting vertically upward,
A nozzle guard for protecting the object to be washed from contacting the tower nozzle is provided on the lower cage body so as to surround the outer periphery of the tower nozzle,
The nozzle guard is composed of a plurality of members, and among the plurality of members, a vertically upwardly movable upper member supports the upper basket body when moved vertically upwardly. The upper member is composed of a first upper member and a second upper member that are independently movable in the vertical direction,
The upper car body comprises a separable first upper car body and a second upper car body, the first upper member supporting the first upper car body, and the second upper member 2. A dishwasher as claimed in claim 1, which supports said second upper basket body. 3. The dishwasher according to claim 1, wherein the upper member can be vertically changed in a plurality of steps.

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