JP6857804B2 - dishwasher - Google Patents

Description

The present invention relates to a dishwasher having a structure in which a tableware basket on which an object to be washed such as tableware is placed is pulled out forward from a washing tank.

In a conventional dishwasher, a tray is provided in a dish basket that is pulled out from the washing tub forward as the door is pulled out forward, and the back surface of the tray is relatively slid to adhere to the back surface. It was provided with a water droplet removing portion for wiping off water droplets (see, for example, Patent Document 1).

In addition, a water pan, which is provided below the dishwasher and whose tip is fixed to the lower part of the inner surface of the front door, extends rearward like a cantilever at a position below the bottom of the washing tank during the washing process. There is also a machine (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2008-119205 JP-A-2009-106527

However, in a dishwasher having a water droplet removing portion, a phenomenon occurs in which contact variation occurs between the water droplet removing portion and the back surface of the tray, or the water droplets on the back surface of the tray cannot be wiped off due to wear due to repeated sliding. As a result, when the door is pulled out, there is a problem that water droplets on the back surface of the tray fall on the floor surface.

Further, in the dishwasher in which the water tray is provided below the bottom of the washing tank during the washing step, the water tray is not washed during the washing step. For this reason, there is also a problem that dirt that has fallen from the object to be washed to the water tray accumulates, and the space under the washing tank in which the water tray and the water tray are stored becomes an unclean environment.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a hygienic dishwasher in which water droplets do not fall on the floor surface and dirt does not accumulate to create an unclean environment. ..

In order to solve the conventional problems, the dishwashing machine of the present invention includes a washing tank having a front opening, a door body that covers the front opening of the washing tank and can be pulled out forward, and the washing tank. It is pulled out together with the cleaning space formed by the door body, the tableware basket stored in the cleaning space, the cleaning nozzle for cleaning the object to be cleaned such as the tableware stored in the tableware basket, and the door body. A main tray and an auxiliary tray are provided, the main tray is provided below the tableware basket in the washing space, and the auxiliary tray is provided below the main tray and outside the washing space. ..

As a result, when the door body is pulled out forward, the main tray washed in the washing process directly receives the dirt that falls from the dishes, and only the water droplets adhering to the back surface of the main tray can be received by the auxiliary tray. Can be prevented from falling on the floor surface, and since only water droplets fall on the auxiliary tray, dirt does not accumulate and the space where the auxiliary tray and auxiliary tray are stored does not become an unclean environment. Dishwasher can be provided.

The dishwasher of the present invention can provide a hygienic dishwasher in which water droplets do not fall on the floor surface and dirt does not accumulate to create an unclean environment.

Perspective view of the state where the door body of the dishwasher according to the first embodiment of the present invention is pulled out forward. Side sectional view of the door body of the dishwasher according to the first embodiment of the present invention in a state of being pulled out forward. Side sectional view of the dishwasher according to the first embodiment of the present invention in a closed state. Front sectional view of a main part in a state where the door body of the dishwasher according to the first embodiment of the present invention is closed. (A) Front sectional view of a main part near the slide rail in a state where the door body of the dishwasher in the first embodiment of the present invention is closed (b) The auxiliary tray of the dishwasher in the first embodiment of the present invention is removed. Cross-sectional view of the main part with the door body pulled out forward (A) Cross-sectional view of a main part near the auxiliary tray in a state where the door body of the dishwasher according to the first embodiment of the present invention is closed (b) The door body of the dishwasher according to the first embodiment of the present invention is forward. Cross-sectional view of the main part near the auxiliary tray in the pulled out state A plan sectional view of a main part in the vicinity of the main tray in a state where the door body of the dishwasher according to the first embodiment of the present invention is pulled out forward. Side sectional view showing the flow of washing water in the washing step of the dishwasher according to the first embodiment of the present invention.

The dishwasher of the first invention is formed by a washing tub having a front opening, a door body that covers the front opening of the washing tub and can be pulled out forward, and the washing tub and the door body. It is provided with a washing space, a tableware basket stored in the washing space, a washing nozzle for washing dishes and other objects to be washed stored in the tableware basket, and a main tray and an auxiliary tray that are pulled out together with the door body. The main tray is provided below the tableware basket in the washing space, and the auxiliary tray is provided below the main tray and outside the washing space.

With this configuration, when the door body is pulled out, the main tray washed in the washing step directly receives the dirt falling from the object to be cleaned, and only the water droplets adhering to the back surface of the main tray can be received by the auxiliary tray. It is possible to prevent water droplets from falling on the floor surface, and since only water droplets fall on the auxiliary tray, dirt does not accumulate and the space where the auxiliary tray and auxiliary tray are stored does not become an unclean environment. A hygienic dishwasher can be provided.

In the second invention, in particular, in the first invention, the auxiliary tray is configured to have a width dimension in the left-right direction larger than that of the main tray. With this configuration, when the door body is pulled out, water droplets falling from the back surface of the main tray can be reliably received by the auxiliary tray, and water droplets can be prevented from falling on the floor surface.

The third invention is configured so that the tableware basket is pulled out together with the door body, particularly in the first or second invention. With this configuration, the tableware basket is pulled forward only by the action of the user pulling out the door body, and the user can set the object to be washed in the tableware basket without having to bother to pull out the tableware basket.

In the fourth invention, in particular, in any one of the first to third inventions, at least one of the main tray or the auxiliary tray is removable. With this configuration, the user can remove the tray and wash it completely, and the tray can be kept hygienic.

The fifth invention, in particular, in any one of the first to fourth inventions, allows the user to access the gap between the main tray and the auxiliary tray when the door body is pulled out. It is composed of intervals. With this configuration, the user can easily clean the lower surface of the main tray and the upper surface of the auxiliary tray by putting a hand between the main tray and the auxiliary tray without removing the main tray, and the main tray and the auxiliary tray can be cleaned. Can be kept hygienic.

In the sixth invention, in particular, in any one of the first to fifth inventions, the auxiliary tray is composed of a plurality of trays. With this configuration, when the door body is closed, the area occupied by the auxiliary tray in the horizontal direction can be reduced, and a large space for a drain port, a washing drain pump, and the like can be secured.

A seventh invention, in particular, in the sixth invention, a plurality of trays of the auxiliary tray are stacked and stored in the vertical direction when the door body covers the front opening of the washing tank. When the door body is pulled out, it is deployed in the pulling direction. With this configuration, it is possible to secure a wide space for a drain port, a washing drain pump, and the like without bending or bending the auxiliary tray, and it is possible to provide a small dishwasher.

The eighth invention, in particular, in the seventh invention, a plurality of trays of the auxiliary tray has an overlap portion between the plurality of trays when the door body is pulled out and deployed in the pull-out direction. Is. With this configuration, even when the door body is pulled out to the front limit, it is possible to prevent the rear tray among the plurality of trays from becoming unstable and tilting or coming off. In addition, it is possible to prevent the washing water that falls on the front tray from falling onto the floor surface.

A ninth aspect of the invention, particularly in the seventh or eighth aspect, is that the door body is pulled out from the rearmost end of the plurality of trays of the auxiliary tray, and the plurality of trays of the auxiliary tray are expanded in the drawing direction. Occasionally, the position is restricted behind the front surface of the cleaning tank. With this configuration, the rearmost tray does not come off the washing tank forward. Further, since the rear end of the rearmost tray does not protrude from the front of the washing tank to the front, it is possible to prevent the washing water from falling from the tableware basket from falling onto the floor surface.

A tenth invention, particularly in any one of the first to ninth inventions, is formed or arranged such that the upper surface of the bottom portion of the main tray is inclined downward toward the rear, and the upper surface of the bottom portion is formed and arranged at the rear portion. A tray outlet is provided so as to penetrate the lower surface. With this configuration, the cleaning water and water droplets falling on the main tray can be reliably guided into the cleaning tank by the inclination of the upper surface of the bottom surface of the main tray and the tray outlet, not only during the cleaning but also after the cleaning is completed. As a result, during cleaning, the circulation of the cleaning water can be improved and the cleaning performance can be improved. In addition, after the cleaning is completed, the cleaning water and water droplets that fall on the main tray can be quickly removed from the main tray and moved into the cleaning tank, and when the door body is pulled out, the cleaning water can be removed. And water droplets can be prevented from falling on the floor surface.

The eleventh invention, in particular, in the tenth invention, the tray outlet is located behind the front surface of the washing tank when the door body is completely pulled out. With this configuration, even when the door body is completely pulled out, the washing water and water droplets falling on the main tray can be reliably stored in the washing tank. Therefore, regardless of the position of the main tray that is pulled out together with the door body, the washing water and water droplets that fall on the main tray can be reliably moved into the washing tank by the tray outlet, and the door body is pulled out. At that time, it is possible to prevent the washing water that falls from the tableware basket from falling onto the floor surface.

A twelfth invention, in particular, in the tenth or eleventh invention, the main tray is provided with a leftover filter for collecting leftovers contained in the washing water at the outlet of the tray. By pulling out the leftovers filter forward together with the door body, the user can easily process the leftovers. In addition, since the leftovers filter is installed on the upstream side of the flow of washing water from the drainage filter located at the bottom of the washing tank, the accumulation of leftovers on the drainage filter, which is difficult to treat leftovers, is reduced and used. It is possible to reduce the labor of processing leftovers by the person.

A thirteenth invention particularly in any one of the first to the twelfth inventions, wherein the main tray includes a rolling support portion that supports the main tray while rolling with respect to the washing tank. is there. With this configuration, even in a configuration in which the main tray is cantilevered and supported by the door body, the main tray can be smoothly moved back and forth while being stably supported. As a result, when the main tray is pulled forward together with the door body, the vibration of the main tray can be suppressed, and the water droplets adhering to the main tray can be suppressed from scattering to the surroundings. Further, during cleaning, it is possible to suppress deformation of the main tray with respect to the load of the washing water falling on the main tray, and prevent the back surface of the main tray from being immersed in the washing water flowing into the inner bottom of the washing tank.

In the fourteenth invention, in particular, in any one of the first to thirteenth inventions, a washing water introduction portion for introducing washing water into the main tray is provided on the inner surface of the left and right side walls of the washing tank. It is a thing. With this configuration, the washing water applied to the inner surfaces of the side walls on both the left and right sides of the washing tank during washing is introduced into the main tray, passes through the tray outlet, and flows down to the inner bottom of the washing tank. Therefore, it is possible to prevent the washing water during washing from flowing into the gap between the main tray and the wall surface of the washing tank and adhering dirt and leftovers to the peripheral edge of the main tray. In addition, the amount of washing water flowing on the main tray can be stabilized, and leftovers and dirt can be prevented from remaining on the main tray. In addition, even after cleaning, the cleaning water that falls on the cleaning water introduction portion along the inner surfaces of the side walls on both the left and right sides of the cleaning tank is also guided onto the main tray, and water droplets and leftovers are formed on the periphery of the main tray. It is possible to prevent it from adhering and falling on the floor surface.

A fifteenth invention, particularly in the fourteenth invention, is such that the washing water introduction portion is provided above the main tray so as to cover the peripheral edge of the main tray. With this configuration, the washing water during washing is surely introduced onto the main tray and flows into the gap between the main tray and the wall surface of the washing tank to prevent leftovers and dirt from adhering to the periphery of the main tray. it can.

A sixteenth invention, particularly in the fourteenth or fifteenth invention, is such that the washing water introduction portion is provided above the tray rail so as to cover the tray rail on which the main tray moves. With this configuration, it is possible to prevent leftovers and dirt from adhering to the tray rail and hindering the movement of the main tray in the front-rear direction.

In the seventeenth invention, in particular, in any one of the fourteenth to sixteenth inventions, the washing water introduction portion is provided so as to be inclined downward toward the rear. With this configuration, the washing water applied to the inner side surfaces of the left and right side walls of the washing tank during washing is introduced as concentrated as possible in the rear part of the main tray provided with the tray outlet and the leftover filter, and the washing tank is introduced. It can be dropped to the inner bottom. As a result, it is possible to prevent leftovers and dirt from remaining on the upper surface of the main tray. In addition, it is possible to prevent water droplets, leftovers, and dirt from remaining on the surface of the washing water introduction portion after washing.

The eighteenth invention, in particular, in any one of the fourteenth to seventeenth inventions, is that the washing water introduction portion is provided so as to be inclined downward toward the inside of the washing tank. With this configuration, the cleaning water applied to the inner side surfaces of the side walls on both the left and right sides of the cleaning tank during cleaning can be reliably guided onto the main tray. In addition, it is possible to prevent water droplets, leftovers, and dirt from remaining on the surface of the washing water introduction portion after washing.

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

(Embodiment 1)
FIG. 1 is a perspective view of a state in which the door body of the dishwasher according to the first embodiment of the present invention is pulled out forward. As shown in FIG. 1, the dishwasher 1 includes a washing tank 3 having a front opening 2, a door body 4 that covers the front opening 2 of the washing tank 3 and can move back and forth, and the washing tank 3 and a door. The cleaning space 5 formed by the body 4 and the lower tableware basket 7 and the upper tableware basket, which are housed in the cleaning space 5 and on which the object to be cleaned 6 is placed and which can be moved back and forth and are made of metal wire, are used. Equipped with 8.

An operation unit 9 is provided on the upper surface of the door body 4. By pressing the button on the operation unit 9, the user can switch the power on / off, start, pause, cleaning and drying courses and conditions.

In the present embodiment, the front opening 2 side of the cleaning tank 3 is the front side, the right side is the right side toward the rear from the front side, and the left side is the left side toward the rear side from the front side. I do.

Further, in the present embodiment, two tableware baskets are provided, but only one tableware basket may be used depending on the amount of the object to be washed 6 required, and three or more tableware baskets may be provided. It may be provided.
Further, in the present embodiment, although the two tableware baskets are made of metal wire, a coated metal or resin material may be used.

FIG. 2 is a side sectional view of the door body of the dishwasher according to the first embodiment of the present invention in a state of being pulled out forward. FIG. 3 is a side sectional view of the dishwasher according to the first embodiment of the present invention in a closed state.

As shown in FIGS. 2 and 3, the cleaning tank 3 has a front opening 2 located on the front surface, a rear wall 3g facing the front opening 2 and closing the rear portion of the cleaning tank 3, and an upper portion of the cleaning tank 3. It is composed of an upper wall 3c that closes the upper wall, an inner bottom 3d that faces the upper wall 3c, and side walls 3e and 3f on both the left and right sides of the cleaning tank 3. The cleaning space 5 is composed of a substantially rectangular parallelepiped in which the front opening 2 of the cleaning tank 3 is closed with a door body 4 and sealed with water.

A lower cleaning nozzle 10 for cleaning the object to be cleaned 6 on the lower tableware basket 7 and an upper cleaning nozzle 11 for cleaning the object to be cleaned 6 on the upper tableware basket 8 are provided. The lower tableware basket 7, the lower cleaning nozzle 10, the upper tableware basket 8, and the upper cleaning nozzle 11 are all located in the cleaning space 5 with the door body 4 closed.

The lower washing nozzle 10 is rotatably provided below the lower tableware basket 7 in a substantially central portion when the lower tableware basket 7 is viewed from above, connected to the lower headrace channel 12. The lower cleaning nozzle 10 has a hollow space through which cleaning water passes, and is provided with a plurality of injection holes 10a on the upper surface for injecting cleaning water toward the object to be cleaned 6 on the lower tableware basket 7. The lower cleaning nozzle 10 is rotated by a reaction force generated when the cleaning water supplied from the lower headrace 12 is injected from the injection hole 10a.

In the present embodiment, the injection hole 10a is provided only on the upper surface of the lower cleaning nozzle 10, but after cleaning, an injection hole is provided below so that the cleaning water does not collect in the lower cleaning nozzle 10. May be.

The lower headrace 12 extends substantially horizontally in the front-rear direction, bends downward above the lower cleaning nozzle 10, and is formed in the shape of a hollow pipe. The lower headrace 12 is fixed to the lower wire rod 7a of the lower tableware basket 7 and moves in the front-rear direction together with the lower tableware basket 7. When the lower headrace 12 moves forward, the connection between the rear end of the lower headrace 12 and the pipe-shaped lower joint portion 13 fixed to the rear wall 3g of the washing tank 3 is released. When the lower tableware basket 7 and the lower headrace 12 move rearward, the rear end of the lower headrace 12 is combined with the lower coupling portion 13, and the washing water can be sent to the lower washing nozzle 10.

The lower tableware basket 7 is provided above the lower cleaning nozzle 10 and substantially the entire cleaning space 5 when viewed from above. The lower tableware basket 7 is supported on the left and right side surfaces of the lower tableware basket 7 by a pair of left and right lower tableware basket rails 14 held at the lower part of the inner side surface of the side walls 3e and 3f on the left and right sides of the washing tank 3 so as to be movable back and forth. It is configured so that it can be pulled out from the front opening 2 of the cleaning tank 3 to the front of the cleaning tank 3. In the standard state, the lower tableware basket 7 is configured to store large dishes such as platters, cutting boards, and pans, and cooking utensils.

The upper cleaning nozzle 11 is cantilevered and fixedly supported on the rear wall 3g of the cleaning tank 3 via the upper headrace 15. The upper washing nozzle 11 is located below the upper tableware basket 8 when the door body 4 is closed, and when the door body 4 is closed, the upper tableware basket 8 is viewed from above and the upper headwater channel is substantially in the center. It is connected to 15 and is rotatably provided. The upper cleaning nozzle 11 has a hollow space through which cleaning water passes, and a plurality of injection holes 11a for injecting cleaning water toward the object to be cleaned 6 on the upper tableware basket 8 are provided on the upper surface. The upper cleaning nozzle 11 rotates due to a reaction force generated when the cleaning water supplied from the upper headrace 15 is injected from the injection hole 10a.

In the present embodiment, the injection hole 11a is provided only on the upper surface of the upper cleaning nozzle 11, but after cleaning, an injection hole is provided below so that the cleaning water does not collect in the upper cleaning nozzle 11. May be.

The upper headrace 15 extends substantially horizontally in the front-rear direction, bends downward above the upper cleaning nozzle 11, and is formed in the shape of a hollow pipe. At the rear end, the upper headrace 15 is coupled to an upper coupling portion 16 having an elbow-shaped pipe fixed to the rear wall 3g of the cleaning tank 3, and is cantilevered and fixed to the rear wall 3g of the cleaning tank 3. ing. The upper headrace 15 sends the washing water supplied through the upper coupling portion 16 to the upper washing nozzle 11.

The upper tableware basket 8 is provided above the upper cleaning nozzle 11 when the door body 4 is closed, and is provided on almost the entire cleaning tank 3 when viewed from above. The upper tableware basket 8 is supported on the left and right side surfaces of the upper tableware basket 8 by a pair of left and right upper tableware basket rails 17 held on the upper part of the inner side surface of the side walls 3e and 3f on the left and right sides of the washing tank 3 so as to be movable back and forth. It is configured so that it can be pulled out from the front opening 2 of the cleaning tank 3 to the front of the cleaning tank 3. In the standard state, the upper tableware basket 8 is configured to store small tableware such as teacups, medium plates with a diameter of 20 cm or less, hot water only, and cups.

A concave drain port 30 is provided at the bottom of the cleaning space 5 of the cleaning tank 3. The cleaning drainage pump 18 is arranged below the outside of the bottom surface of the cleaning tank 3. The pump water channel 31 is a path that communicates the drain port 30 and the cleaning drainage pump 18. The cleaning drainage pump 18 sends cleaning water for cleaning the object to be cleaned 6 to the lower cleaning nozzle 10 and the upper cleaning nozzle 11 via the cleaning water channel 32. Further, the washing drainage pump 18 switches the valve by reversing, and drains the washing water in the washing tank 3 after washing to the outside of the dishwasher 1. The washing water sent from the washing drainage pump 18 passes through the washing water channel 32, passes through the water dividing portion 32a divided into two paths, and is sent to the lower washing nozzle 10 and the upper washing nozzle 11.

In the present embodiment, the upper headrace 15 is connected to the upper coupling portion 16 by the rear wall 3g of the washing tank 3 and is fixed by cantilever, but like the lower headrace 12, the upper headrace is fixed. 15 may be fixed to the lower wire of the upper tableware basket 8 and may be configured to move in the front-rear direction together with the upper tableware basket 8. According to the configuration, when the height of the upper tableware basket 8 is adjustable, the height of the upper head water channel 15 changes together with the height adjustment of the upper tableware basket 8 to correspond to the height adjustment position. If a plurality of the upper joint portions 16 are provided on the rear wall 3 g of the washing tank 3, the washing water can be sent to the upper washing nozzle 11 regardless of the height position of the upper tableware basket 8.

Moreover, although cleaning and drainage are operated by one pump, two pumps may be used separately.

The dishwasher 1 of the present embodiment includes a main tray 20 and an auxiliary tray 21 that receive water droplets falling from the object to be washed 6 placed on the lower tableware basket 7 and the upper tableware basket 8. The main tray 20 and the auxiliary tray 21 are pulled forward together with the door body 4. The main tray 20 and the auxiliary tray 21 are arranged with a gap between the left side wall 3e and the right side wall 3f of the cleaning tank 3 so that the main tray 20 and the auxiliary tray 21 can be smoothly taken in and out of the cleaning tank 3 together with the door body 4. ing. The main tray 20 is located inside the washing space 5 when the door body 4 is closed, and is larger in the left-right direction than the lower tableware basket 7 when viewed from below the lower tableware basket 7 and above the lower tableware basket 7. It is configured in size. The auxiliary tray 21 is arranged below the main tray 20, and when the door body 4 is closed, the auxiliary tray 21 is stored in the auxiliary tray storage portion 19 provided below the cleaning tank 3, and the cleaning space 5 has an auxiliary tray 21. Located outside. When the door body 4 is pulled out, the auxiliary tray 21 is arranged between the auxiliary tray 21 and the main tray 20 in the height direction so as to allow a user's hand of, for example, 5 cm or more to enter.

The main tray 20 is made of a highly rigid resin material and is inclined downward (for example, an inclination angle of 5 degrees) toward the rear. The main tray 20 is formed in a groove shape so that the peripheral edges facing the side walls 3e and 3f on the left and right sides of the cleaning tank 3 are higher than the central portion in the left-right direction toward the front surface of the cleaning tank 3, and is opened upward. ing. The front end portion of the main tray 20 is detachably fixed to the main tray claw portion 20a provided on the door body 4 by claw fitting. The downward inclination of the main tray 20 toward the rear may be formed at least on the upper surface of the bottom portion, but may be further formed on the lower surface (back surface) of the bottom portion. Further, the downward inclination of the main tray 20 toward the rear is such that the main tray 20 is arranged and fixed so as to be inclined downward toward the rear in fixing the front end portion of the main tray 20 and the door body 4. It may be configured by. The downward inclination of the main tray 20 toward the rear is a constant inclination angle in the present embodiment, but it may be composed of a plurality of inclination angles or an inclination angle that gradually and continuously changes. It may be configured.

Rotatable tray rollers 23 (rolling support portions) are provided on the left and right sides of the rear end portion of the main tray 20. The tray roller 23 supports the main tray 20 while rolling on the upper surface of the tray rail 24 provided on the inner side surfaces of the side walls 3e and 3f on the left and right sides of the cleaning tank 3. When the door body 4 is pulled out, the main tray 20 is supported by the tray roller 23 and is pulled out together with the door body 4.

The surface of the main tray 20 may be coated with a hydrophilic coat. As a result, the washing water adhering to the main tray 20 is prevented from becoming water droplets and staying on the surface of the main tray 20, so that it is possible to prevent the washing water from falling on the floor surface.

The auxiliary tray 21 is made of a highly rigid resin material and is arranged substantially horizontally. The auxiliary tray 21 is composed of a first auxiliary tray 21a and a second auxiliary tray 21b provided below the first auxiliary tray 21a. Both the first auxiliary tray 21a and the second auxiliary tray 21b are open at the top. When the door body 4 is closed, the first auxiliary tray 21a and the second auxiliary tray 21b are positioned so as to be vertically overlapped with each other. When the door body 4 is pulled out, the first auxiliary tray 21a and the second auxiliary tray 21b are pulled out together with the door body 4 while being displaced in the front-rear direction relative to each other.

A seal portion 25 is provided along the outer circumference on the surface (inner surface) of the door body 4 on the cleaning tank 3 side. The seal portion 25 is made of silicon rubber and is hollow, and a rubber magnet having a magnetic force is built in the surface on the cleaning tank 3 side. The cleaning tank seal surface 26 of the cleaning tank 3 facing the seal portion 25 is made of SUS430, which is a magnetic metal. As a result, when the door body 4 is closed from the pulled out state, the seal portion 25 is magnetically pulled into the cleaning tank sealing surface 26, and the door body 4 is closed with respect to the cleaning tank 3 while maintaining watertightness.

After the seal portion 25 is pulled into the cleaning tank sealing surface 26, the entire surface of the sealing portion 25 is attracted to the cleaning tank sealing surface 26 by magnetic force to be sealed. As a result, even if the door body 4 or the cleaning tank sealing surface 26 is slightly deformed due to warping or the door body 4 is tilted forward, the sealing property during cleaning can be ensured, and water to the outside of the cleaning space 5 can be ensured. Leakage can be prevented.

In the present embodiment, the seal portion 25 is continuously provided in a square shape, but even if the connection of the seal portion is partially broken, the seal between the door body 4 and the cleaning tank 3 can be maintained. It suffices if it can be secured.

Further, although SUS430 is used as the material of the cleaning tank sealing surface 26, a magnetic material such as iron may be used, and the front surface of the cleaning tank 3 other than the cleaning tank sealing surface 26 may be made of resin or the like. A substance having no magnetism may be used.

Further, although the seal portion 25 is provided on the door body 4 side, a material having magnetism on the surface of the door body 4 facing the cleaning tank 3 side may be used.

Further, the cleaning tank seal surface 26 is configured to be rearward from the front surface 3a of the cleaning tank 3. With this configuration, when the cleaning water flowing downward along the cleaning tank seal surface 26 is received or the door body 4 is pulled out during cleaning, the seal portion 25 and the seal portion 25 are used until the cleaning drainage pump 18 is stopped. It is possible to receive the cleaning water flowing through the cleaning tank sealing surface 26 through the gap of the cleaning tank sealing surface 26.

Further, a receiving portion 27 opened upward is provided on the bottom surface in front of the cleaning tank 3. As a result, even if some washing water flows, it can be received without overflowing. Further, a hole 26a is partially provided on the lower cleaning tank seal surface 26. As a result, the washing water accumulated in the receiving portion 27 can be returned to the washing tank 3.

A key-shaped hook 28 is provided on the inner wall of the door body 4 on the cleaning space 5 side. A wire rod substantially in the center of the front part of the lower tableware basket 7 is engaged with the hook 28, and the door body 4 and the lower tableware basket 7 are interlocked so as to be movable back and forth. Further, when the user wants to remove the lower tableware basket 7, the lower tableware basket 7 can be easily removed from the hook 28 by lifting the front wire of the lower tableware basket 7. Further, an inclined surface is provided behind the hook 28. As a result, even when the door body 4 is pulled forward and the lower tableware basket 7 is removed from the hook 28 and is located in the washing tank 3, when the door body 4 is closed, the lower tableware basket 7 is in front of the lower tableware basket 7. When the wire rod goes up the inclined surface of the hook 28 and the door body 4 is closed, the front wire rod of the lower tableware basket 7 is engaged with the hook 28, and the next time the door body 4 is pulled out forward, the lower tableware The basket 7 is also pulled out at the same time.

A water supply valve 29 is arranged above the rear part of the cleaning tank 3. The washing water is supplied into the washing tank 3 from the water supply valve 29 directly connected to the water supply.

A fan 33 is provided below the outer rear portion of the cleaning tank 3. The fan 33 operates in a drying process of the dishwasher 1 or the like, sucks in outside air, and supplies the outside air to the inside of the washing space 5 from the air outlet 35 through the air passage 34. The air supplied to the inside of the cleaning space 5 is warmed by the heater 36 located below the cleaning space 5, dries the object to be cleaned 6 inside the cleaning space 5, and is provided on the upper surface or the side wall of the door body 4. It is exhausted from the exhaust port 37. The exhaust port 37 may be provided on the top surface or the side wall of the cleaning tank 3.

The temperature detection unit 38 is arranged in close contact with the outside of the bottom surface of the cleaning tank 3. The temperature detection unit 38 indirectly detects the temperatures of the cleaning water, air, and the heater 36 in the cleaning tank 3.

The control unit 40 is provided below the bottom surface of the cleaning tank 3. The control unit 40 controls the water supply valve 29 by a signal from the operation unit 9 operated by the user to control the supply of cleaning water into the cleaning tank 3, or is based on the output of the temperature detecting unit 38. In addition to controlling the heater 36, the washing / draining pump 18, the fan 33, and the like are controlled to sequentially execute a series of steps of washing, rinsing, and drying.

FIG. 4 is a front sectional view of a main part of the dishwasher according to the first embodiment of the present invention in a closed state.

As shown in FIGS. 2 to 4, the washing water introduction portion 70 is provided on the inner side surfaces of the side walls 3e and 3f on the left and right sides of the washing tank 3. The wash water introduction portion 70 is located above the main tray 20 and covers the peripheral edge of the main tray 20. The washing water introduction portion 70 is provided so as to be inclined downward toward the rear and downward from the inner side surfaces of the side walls 3e and 3f on the left and right sides of the washing tank 3. With this configuration, the washing water introduction unit 70 introduces the washing water during and after washing the object 6 to be washed into the main tray 20.

Further, the washing water introduction portion 70 is located above the tray rail 24 on which the tray roller 23 provided on the main tray 20 moves while rolling, and covers the upper surface of the tray rail 24. With this configuration, the tray rail 24 is less likely to be exposed to the washing water, and the leftovers and dirt contained in the washing water are less likely to adhere to the tray rail 24.

The downward inclination of the washing water introduction portion 70 toward the rear and the inclination of the side walls 3e and 3f on the left and right sides of the washing tank 3 from the inner side surface to the inward side may be formed at least on the upper surface, but the lower surface (back surface). ) Is also formed. In the present embodiment, the downward inclination of the washing water introduction portion 70 toward the rear and the inclination of the side walls 3e and 3f on the left and right sides of the washing tank 3 from the inner side surface to the inward are constant inclination angles. , It may be composed of a plurality of inclination angles, or it may be composed of an inclination angle that gradually and continuously changes.

In the present embodiment, the wash water introduction unit 70 is formed in a flat plate shape, but the present invention is not limited to this.

At the drain port 30, a drain filter 50 that collects leftovers such as foods adhering to the object 6 as dirt in the cleaning step of cleaning the object 6 to be cleaned and the rinsing step of the object 6 to be cleaned is provided. It is provided. The drainage filter 50 includes a first drainage filter 50a, a second drainage filter 50b provided around the first drainage filter 50a, and a third drainage filter formed so as to cover above the drainage port 30. It is composed of three parts of 50c.

The first drainage filter 50a is formed of a resin material in a cylindrical shape, and has a large number of substantially square holes having a side of about 4.5 mm on the outer peripheral surface and the bottom surface. The second drainage filter 50b is formed of a stainless steel mesh in a cylindrical shape, and is provided with a large number of substantially square holes having a side of about 4.5 mm on the outer peripheral surface. The third drainage filter 50c is a stainless steel plate having holes for fitting the first drainage filter 50a and the second drainage filter 50b from above and having a large number of punching holes having a diameter of about 1 mm. It is formed. A pump water channel 31 communicating with the cleaning drainage pump 18 is connected to the bottom surface of the drainage port 30 outside the second drainage filter 50b.

FIG. 5A is a front sectional view of a main part in the vicinity of the slide rail in a state where the door body of the dishwasher in the first embodiment of the present invention is closed. FIG. 5B is a cross-sectional view of a main part in a state where the auxiliary tray of the dishwasher according to the first embodiment of the present invention is removed and the door body is pulled out forward.

As shown in FIGS. 5A and 5B, the pair of left and right slide rails 60 are fixed to the fixed rails 60a attached to the left and right inner side surfaces below and outside the cleaning space 5 of the cleaning tank 3. It is composed of a first movable rail 60b slidably mounted on the rail 60a and a second movable rail 60c slidably mounted on the first movable rail 60b.

The door body 4 is fixed to the front end portions of a pair of left and right angles 61 formed of a metal plate below the door body 4. The angle 61 is located on the second movable rail 60c, and the rear end portion of the angle 61 is hooked on the hook portion 60d formed on the second movable rail 60c and screwed onto the second movable rail 60c in front of the angle 61. It is stopped and fixed. When the door body 4 is pulled forward, the angle 61 and the second movable rail 60c are pulled forward from the front opening 2 of the cleaning tank 3 while supporting the door body 4 substantially vertically.

The left and right flange portions of the first auxiliary tray 21a are placed on the angle 61. The second auxiliary tray 21b is held by the left and right tray slide portions 21c of the first auxiliary tray 21a so as to be slidable in the front-rear direction with respect to the first auxiliary tray 21a.

FIG. 6A is a cross-sectional view of a main part in the vicinity of the auxiliary tray in a state where the door body of the dishwasher in the first embodiment of the present invention is closed. FIG. 6B is a cross-sectional view of a main part in the vicinity of the auxiliary tray in a state where the door body of the dishwasher according to the first embodiment of the present invention is pulled out forward.

As shown in FIGS. 6A and 6B, the front portion of the first auxiliary tray 21a is doord by hooking the rib of the first auxiliary tray 21a on the hook portion 4a of the door body 4. Engages in body 4. The rear portion of the first auxiliary tray 21a is detachably fixed to the angle 61 by fitting the auxiliary tray claw portion 21d to the angle 61.

When the door body 4 is pulled out from the closed state, first, the first auxiliary tray 21a is pulled out together with the angle 61. After that, the hooking portion 21e provided behind the first auxiliary tray 21a and the hooking portion 21f provided in front of the second auxiliary tray 21b are engaged with each other, and the second auxiliary tray 21b is also pulled out forward. Is done.

The first auxiliary tray 21a and the second auxiliary tray 21b have a tray slide portion 21c of the first auxiliary tray 21a and the second auxiliary tray 21b when the door body 4 is pulled forward to the limit of the slide rail 60. In, the length of the anteroposterior relationship between the two is configured so that the overlapping portion 21g in the anteroposterior direction still remains. As a result, even when the door body 4 is pulled forward to the limit of the slide rail 60, the second auxiliary tray 21b becomes unstable and does not become slanted or come off.

Further, the first auxiliary tray 21a and the second auxiliary tray 21b are in the left-right direction of the first auxiliary tray 21a and the second auxiliary tray 21b when the door body 4 is pulled forward to the limit of the slide rail 60. The length of the front-rear relationship between the two and the width dimension in the left-right direction are configured so that the overlap portion 21 g in the front-rear direction still remains over the entire width of the above. As a result, even when the door body 4 is pulled forward to the limit of the slide rail 60, the washing water that falls on the first auxiliary tray 21a does not fall on the floor surface.

By configuring the first auxiliary tray 21a, the second auxiliary tray 21b, and the angle 61 as described above, when the lower tableware basket 7 and the upper tableware basket 8 are pulled out forward together with the door body 4, the first auxiliary tray 21a, the second auxiliary tray 21b, and the angle 61 are configured as described above. Auxiliary tray 21a and 2nd auxiliary tray 21b are deployed under the main tray 20 to completely cover a wider area than the main tray 20 when viewed from above, and prevent water droplets from falling from the main tray 20 to the floor surface. Can be done.

On the contrary, when the door body 4 is closed from the pulled out state, the first auxiliary tray 21a is first stored together with the angle 61 in the auxiliary tray storage portion 19 below the washing tank 3. At this time, the second auxiliary tray 21b does not move backward unless an abnormally large frictional force acts on the tray slide portion 21c. The first auxiliary tray 21a and the second auxiliary tray 21b are displaced in the front-rear direction relative to each other in the tray slide portion 21c. After that, the front end portion of the second auxiliary tray 21b and the inner wall 4b of the door body 4 come into contact with each other, and the second auxiliary tray 21b is pushed by the door body 4 into the auxiliary tray storage portion 19 below the cleaning tank 3. It will be stored.

The first auxiliary tray 21a and the second auxiliary tray 21b are both arranged substantially horizontally. As a result, the water droplets that have fallen on the first auxiliary tray 21a and the second auxiliary tray 21b do not concentrate at a specific location, and natural evaporation is promoted. Therefore, it is not necessary to provide a configuration for draining the dropped water droplets, and the user does not have to wipe off the water droplets.

As shown in FIGS. 6A and 6B, in the present embodiment, the hooking portion 21f is configured at the front end portion of the second auxiliary tray 21b, but is configured at another portion. May be done.

Further, a stopper 3b is provided on the front surface 3a of the cleaning tank 3 so that the second auxiliary tray 21b does not come off from the cleaning tank 3 forward. When the door body 4 is pulled out forward, the stopper 3b and the hook portion 21h provided behind the second auxiliary tray 21b come into contact with each other. As a result, the second auxiliary tray 21b is prevented from moving further forward, and does not come off the washing tank 3 forward. Further, since the rear end of the second auxiliary tray 21b does not protrude forward from the front surface 3a of the washing tank 3, the washing water falling from the lower tableware basket 7 and the upper tableware basket 8 can be dropped onto the floor surface. Can be prevented.

Further, in the present embodiment, two auxiliary trays 21a and 21b are provided, but if a space such as a drain port 30 and a washing drainage pump 18 can be secured, one tray may be provided. Further, if a plurality of three or more auxiliary trays are provided, it is possible to secure a wider space for the drain port 30, the washing drain pump 18, and the like.

Further, although the first auxiliary tray 21a and the second auxiliary tray 21b are made of a highly rigid resin material, if the lower part of the main tray 20 can be covered when the door body 4 is pulled out forward. Even if the door body 4 is closed, it can be folded or rolled up using a flexible sheet material such as a thin plate of metal or resin, cloth, or rubber. Good.

FIG. 7 is a plan sectional view of a main part in the vicinity of the main tray in a state where the door body of the dishwasher according to the first embodiment of the present invention is pulled out forward.

As shown in FIG. 7, the auxiliary tray 21 is configured to be larger in the left-right direction than the main tray 20. At the rear of the main tray 20, a plurality of rectangular tray outlets 20b having a longitudinal direction in the left-right direction are formed. As shown in FIG. 2, the tray outlet 20b is provided so as to penetrate the upper surface and the lower surface (back surface) of the bottom portion of the main tray 20. The tray outlet 20b drops the washing water and water droplets on the main tray 20 during and after washing and is guided by the upper surface inclined downward toward the rear of the bottom of the main tray 20. Lead to the inside of.

As shown in FIGS. 2 and 7, a tray filter 41 provided with a large number of square holes having a side of about 4.5 mm is detachably mounted on the tray outlet 20b. The tray filter 41 is a leftovers filter that collects leftovers contained in the washing water flowing on the main tray 20 at the time of washing through the large number of square holes. Since the tray filter 41 is detachably mounted on the main tray 20, when the user pulls out the door body 4, the tray filter 41 is also pulled forward, and the leftovers collected by the tray filter 41 can be easily removed. Can be processed.

The tray filter 41 is optimally configured to be detachably attached to the main tray 20 as in the present embodiment, but since the main tray 20 is detachably attached to the door body 4, the main tray 41 is detachably attached to the main tray 20. Even if the 20 is integrally provided, the leftover food treatment is possible.

The tray outlet 20b is positioned behind the front surface 3a of the cleaning tank 3 in a state where the door body 4 is completely pulled out to the front. As a result, even if the washing water that has fallen on the main tray 20 flows out from the tray outlet 20b, it does not fall on the receiving portion 27 of the washing tank 3 and on the auxiliary tray 21 or the floor surface. In this way, by configuring the cleaning water so as not to fall on the auxiliary tray 21 as much as possible, the washing water on the auxiliary tray 21 can be easily dried by natural evaporation, and the maintenance of the auxiliary tray 21 can be reduced.

The wall surface at the rear portion of the main tray 20 may be eliminated without providing the tray outlet 20b so that the cleaning water flows from the rear portion of the main tray 20 into the cleaning tank 3.

Further, the drainage filter 50 may be configured to collect coarse leftovers without providing the tray filter 41.

Further, although the main tray 20 is made of a highly rigid resin material, if the lower part of the lower tableware basket 7 can be covered when the door body 4 is pulled out forward, a thin metal or resin plate, cloth, or rubber can be used. When the door body 4 is closed, the door body 4 may be folded or rolled up by using a flexible sheet material such as the above.

The operation and operation of the dishwasher 1 configured as described above will be described.

When the user pulls the door body 4 forward from the dishwasher 1, the lower tableware basket 7 engaged with the door body 4 by the hook 28, the main tray 20 and the auxiliary tray 21 move forward in conjunction with the door body 4. Pulled out to. The user sets the object to be washed 6 in the lower tableware basket 7. Subsequently, the user pulls out the upper tableware basket 8, sets the object to be cleaned 6 in the upper tableware basket 8, and puts the detergent into the washing tank 3. Then, the cleaning and drying course and conditions are input by the operation unit 9 on the upper surface of the door body 4, the power button and the start button are pressed, and the door body 4 is closed.

When the control unit 40 detects that the door body 4 is closed by the door body open / close switch (not shown), the control unit 40 starts the operation.

FIG. 8 is a side sectional view showing the flow of washing water in the washing step of the dishwasher according to the first embodiment of the present invention.

First, the washing drainage pump 18 operates to discharge the residual washing water remaining in the washing tank 3 to the outside of the dishwasher 1 in the previous operation or the like. Next, the water supply valve 29 operates, and a predetermined amount of tap water is supplied into the washing tank 3 as washing water.

When a predetermined amount of washing water is supplied, the washing water also flows into the inside of the washing drainage pump 18 connected by the pump water channel 31 from the drainage port 30 together with the detergent. Pressurization by the cleaning drainage pump 18 is started, the cleaning water in which the detergent is dissolved is sent, and the water is divided by the water dividing unit 32a. A part of the washing water separated by the water dividing portion 32a is sent to the lower washing nozzle 10 via the lower connecting portion 13 and the lower headrace 12.
The remaining part of the washing water separated by the water dividing portion 32a is sent to the upper washing nozzle 11 via the upper connecting portion 16 and the upper headrace 15.

The cleaning water sent to each cleaning nozzle is ejected upward from the injection holes 10a provided in the lower cleaning nozzle 10 and the injection holes 11a provided in the upper cleaning nozzle 11 toward the object to be cleaned 6, respectively. At the same time, the reaction forces of the cleaning water injected from the injection holes 10a and the injection holes 11a are used to rotate the respective cleaning nozzles.

Most of the cleaning water sprayed from the lower cleaning nozzle 10 and the upper cleaning nozzle 11 to wash the object to be cleaned 6 falls on the main tray 20 and flows along a downward slope toward the rear. Then, first, the coarse leftovers are strained by the tray filter 41. Next, the drainage filter 50 is used to strain fine leftovers. After that, it is collected in the drain port 30 and flows into the washing drain pump 18 again through the pump water channel 31. In this way, the cleaning water in which the detergent is dissolved circulates, and a cleaning step of cleaning the object to be cleaned 6 is performed. In this cleaning step, the control unit 40 energizes the heater 36 provided in the cleaning tank 3 and heats the cleaning water to a predetermined temperature while circulating the cleaning water.

At this time, washing water is introduced into the side walls 3e and 3f on both sides of the washing tank 3 so as to be inclined downward toward the rear and downward from the inner side surface of the side walls 3e and 3f toward the main tray 20. A part 70 is provided. By the washing water introduction unit 70, the washing water applied to the inner side surfaces of the side walls 3e and 3f on both sides of the washing tank 3 during washing is introduced into the main tray 20 and passes through the tray outlet 20b to the washing tank 3. It flows down to the inner bottom 3d. Therefore, it is possible to prevent the washing water during washing from flowing into the gap between the main tray 20 and the wall surface of the washing tank 3 and adhering dirt and leftovers to the peripheral edge of the main tray 20.

Further, the amount of washing water flowing on the main tray 20 is stabilized. As a result, dirt and leftovers that have fallen on the washing main tray 20 on the washing water stream flow to the tray outlet 20b. As a result, leftovers and dirt do not remain attached to the main tray 20, and the main tray 20 can be kept clean and there is no concern about generating an odor.

Further, since the amount of washing water flowing through the main tray 20 is stable and the water force for washing away leftovers and dirt can be maintained, the inclination angle of the main tray 20 with respect to the horizontal can be reduced. As a result, the space for arranging the main tray 20 is small, so that large tableware and cooking containers can be efficiently stored.

Further, after cleaning, the cleaning water that falls on the cleaning water introduction unit 70 along the inner surfaces of the side walls 3e and 3f on the left and right sides of the cleaning tank 3 is also guided onto the main tray 20 by the cleaning water introduction unit 70. As a result, when the main tray 20 is pulled out as the door body 4 is pulled out, it is possible to prevent water droplets and leftovers from adhering to the peripheral edge of the main tray 20 and falling onto the floor surface.

For comparison, the flow of the washing water when the washing water introduction unit 70 for introducing the washing water is not provided in the main tray 20 will be described. The flow of the washing water that has washed the object to be cleaned 6 passes through the main tray 20 and flows to the inner bottom 3d of the washing tank 3, and the peripheral edge of the main tray 20 and the washing tank 3 without passing through the main tray 20. There is a flow that passes through the gaps between the side walls 3e and 3f on both the left and right sides of the washing tank 3 and flows directly to the inner bottom 3d of the cleaning tank 3. The flow passing through the gap between the peripheral edge of the main tray 20 and the side walls 3e and 3f on the left and right sides of the cleaning tank 3 makes it easy for water droplets and leftovers to adhere to the peripheral edge of the main tray 20 during cleaning, and the door body after cleaning. When 4 is pulled out, water droplets and leftovers adhering during cleaning fall from the main tray 20 to the floor surface. Further, by dividing into the above two flows, the amount of water flowing on the main tray 20 is reduced. As a result, the momentum for washing away dirt and leftovers that have fallen on the main tray 20 is weakened. Therefore, the main tray 20 needs to be tilted considerably with respect to the horizontal, an extra space for providing the main tray 20 is required, and the size and quantity of tableware and cooking containers that can be accommodated are restricted.

When the washing step is performed for a predetermined time, the washing drainage pump 18 discharges the washing water containing the dirt washed off from the object 6 to be washed out of the dishwasher 1. Then, the control unit 40 newly opens the water supply valve 29 to supply the cleaning water into the cleaning tank 3, and cleans the water again from the injection holes 10a and the injection holes 11a provided in the lower cleaning nozzle 10 and the upper cleaning nozzle 11. Is sprayed to rinse the object to be cleaned 6 contaminated with detergent, leftovers, etc., and the rinsing step is executed. The flow of the washing water inside the washing tank 3 in the rinsing step is the same as that in the washing step. Therefore, the action of the washing water introduction unit 70 is the same as that in the washing step.

When this rinsing step is completed, the washing drainage pump 18 discharges the washing water to the outside of the dishwasher 1 again. This rinsing process is repeated a plurality of times in succession. Then, after the rinsing step performed a plurality of times, the washing water is heated to a predetermined temperature (for example, 60 ° C.) by the heater 36, and the rinsing heating rinsing step is performed.

When the heating rinsing step is completed, the drying step is started. In this drying step, the fan 33 operates, and the outside air is sent into the cleaning tank 3 from the air outlet 35 via the air passage 34. The air sent into the washing tank 3 is heated by the heater 36 provided in the downstream direction of the air outlet 35, then the object to be washed 6 is dried and exhausted from the exhaust port 37 to the outside of the dishwasher 1. .. After the drying process is completed, the control unit 40 ends the operation of the dishwasher 1 and notifies the user of the end of the operation with a buzzer.

After the operation of the dishwasher 1 is completed, the user pulls out the lower tableware basket 7 by pulling out the door body 4 forward, takes out the dishwasher 6 that has been washed and dried, then pulls out the upper dishwasher 8 and is washed. Take out the object 6.

As described above, the dishwasher 1 in the present embodiment includes a washing tank 3 having a front opening 2, a door body 4 that covers the front opening 2 of the washing tank 3 and can be pulled out forward, and a washing tank 3. A cleaning space 5 formed by the door body 4, a lower tableware basket 7 housed in the cleaning space 5, and a lower cleaning nozzle 10 for cleaning the object to be cleaned such as tableware stored in the lower tableware basket 7. A main tray 20 and an auxiliary tray 21 are provided together with the door body 4, the main tray 20 is provided below the lower tableware basket 7 in the washing space 5, and the auxiliary tray 21 is washed below the main tray 20. It is provided outside the space 5.

When the cleaning process starts and the drying process ends, water droplets remain not only in the object to be cleaned 6 and the cleaning tank 3, but also on the back surface of the main tray 20, and when the door body 4 is pulled out in that state, Water droplets adhering to the back surface of the main tray 20 may fall down. In the dishwasher 1 of the present embodiment, the auxiliary tray 21 can receive the water droplets due to the above configuration, so that the water droplets can be prevented from falling on the floor surface. Further, since only water droplets fall on the auxiliary tray 21, it is possible to provide a hygienic dishwasher in which dirt does not accumulate and the space in which the auxiliary tray 21 and the auxiliary tray 21 are stored does not become an unclean environment. ..

Further, by making the auxiliary tray 21 wider in the left-right direction than the main tray 20, when the door body 4 is pulled out, the auxiliary tray 21 can reliably receive water droplets falling from the back surface of the main tray 20. It is possible to prevent water droplets from falling on the floor surface.

Further, since the lower tableware basket 7 is pulled out forward together with the door body 4, the lower tableware basket 7 is pulled out forward only by the action of the user pulling out the door body 4, and the user bother to pull out the lower tableware basket 7. The object to be washed 6 can be set in the lower tableware basket 7.

Further, by making the main tray 20 and the auxiliary tray 21 removable, the user can remove the main tray 20 and the auxiliary tray 21 and wash them completely, and keep the main tray 20 and the auxiliary tray 21 hygienic. Can be done.

Further, the gap between the main tray 20 and the auxiliary tray 21 when the door body 4 is pulled out is set to a distance of 5 cm or more so that the user can enter the gap between the main tray 20 and the auxiliary tray 21. The lower surface of the main tray 20 and the upper surface of the auxiliary tray 21 can be easily cleaned without removing the main tray 20 by putting a hand, and the main tray 20 and the auxiliary tray 21 can be kept hygienic.

Further, since the auxiliary tray 21 is composed of two trays, the first auxiliary tray 21a and the second auxiliary tray 21b, the area occupied by the auxiliary tray 21 in the horizontal direction is reduced when the door body 4 is closed. It is possible to secure a wide space for the drain port 30, the washing drain pump 18, and the like.

Further, the first auxiliary tray 21a and the second auxiliary tray 21b were stacked and stored in the vertical direction when the door body 4 covered the front opening 2 of the washing tank 3, and the door body 4 was pulled out. Occasionally, by deploying in the pull-out direction, it is possible to secure a large space for the drain port 30, the washing drain pump 18, etc. without bending or bending the auxiliary tray 21, and to provide a small dishwasher. be able to.

Further, when the door body 4 is pulled out and the auxiliary tray 21 is deployed in the pull-out direction, the overlap portion 21g is configured to exist between the first auxiliary tray 21a and the second auxiliary tray 21b. As a result, even when the door body 4 is pulled forward to the limit of the slide rail 60, the second auxiliary tray 21b can be prevented from becoming unstable and tilting or coming off. In addition, it is possible to prevent the washing water that falls on the first auxiliary tray 21a from falling onto the floor surface.

Further, when the door body 4 is pulled out and the auxiliary tray 21 is expanded in the pull-out direction, the second auxiliary tray 21b is cleaned by the stopper 3b provided on the front surface 3a of the cleaning tank 3 with the rear hooking portion 21h. The position is restricted behind the front surface 3a of the tank 3. As a result, the second auxiliary tray 21b does not come off the cleaning tank 3 forward. Further, since the rear end of the second auxiliary tray 21b does not protrude forward from the front surface 3a of the washing tank 3, the lower tableware basket 7
In addition, it is possible to prevent the washing water that falls from the upper tableware basket 8 from falling onto the floor surface.

Further, the main tray 20 is formed or arranged so that the upper surface of the bottom portion is inclined downward toward the rear, and the tray outlet 20b is provided at the rear portion of the main tray 20 so as to penetrate the upper surface and the lower surface of the bottom portion. .. As a result, the cleaning water and water droplets falling on the main tray 20 are surely guided into the cleaning tank 3 by the inclination of the upper surface of the bottom surface of the main tray 20 and the tray outlet 20b, not only during the cleaning but also after the cleaning is completed. Can be done. As a result, during cleaning, the circulation of the cleaning water can be improved and the cleaning performance can be improved. Further, after the cleaning is completed, the cleaning water and water droplets falling on the main tray 20 can be promptly removed from the main tray 20 and moved into the cleaning tank 3, and when the door body 4 is pulled out. In addition, it is possible to prevent the washing water and water droplets from falling on the floor surface.

Further, the tray outlet 20b of the main tray 20 is configured to be located behind the front surface 3a of the cleaning tank 3 when the door body 4 is completely pulled out. With this configuration, even when the door body 4 is completely pulled out, the washing water and water droplets falling on the main tray 20 can be reliably stored in the washing tank 3. Therefore, regardless of the position of the main tray 20 drawn out together with the door body 4, the washing water and water droplets falling on the main tray 20 can be reliably moved into the washing tank 3 by the tray outlet 20b. It is possible to prevent the washing water that falls from the tableware basket from falling onto the floor surface.

Further, the main tray 20 is provided with a tray filter 41 for collecting leftovers contained in the washing water at the tray outlet 20b. By pulling out the tray filter 41 forward together with the door body 4, the user can easily process the leftover food. Further, since the tray filter 41 is provided on the upstream side of the flow of the washing water from the drainage filter 50 located at the lowermost part of the washing tank 3, the accumulation of leftovers on the drainage filter 50, which is difficult to treat the leftovers, is reduced. However, it is possible to reduce the trouble of processing leftovers by the user.

Further, the main tray 20 includes a tray roller 23 that supports the main tray 20 while rolling with respect to the washing tank 3. As a result, even in a configuration in which the main tray 20 is cantilevered and supported by the door body 4, the main tray 20 can be smoothly moved back and forth while being stably supported. As a result, when the main tray 20 is pulled forward together with the door body 4, the vibration of the main tray 20 can be suppressed, and the water droplets adhering to the main tray 20 can be suppressed from scattering to the surroundings. Further, during cleaning, the deformation of the main tray 20 with respect to the load of the cleaning water falling on the main tray 20 is suppressed, and the back surface of the main tray 20 is prevented from being immersed in the cleaning water flowing into the inner bottom 3d of the cleaning tank 3. Can be done.

Further, on the inner side surfaces of the left and right side walls 3e and 3f of the washing tank 3, a washing water introduction portion 70 for introducing the washing water into the main tray 20 is provided. With this configuration, the cleaning water applied to the inner side surfaces of the side walls 3e and 3f on the left and right sides of the cleaning tank 3 during cleaning is introduced into the main tray 20 and passes through the tray outlet 20b to pass through the tray outlet 20b to the inner bottom 3d of the cleaning tank 3. It runs down to. Therefore, it is possible to prevent the washing water during washing from flowing into the gap between the main tray 20 and the wall surface of the washing tank 3 and adhering dirt and leftovers to the peripheral edge of the main tray 20. Further, it is possible to stabilize the amount of washing water flowing on the main tray 20 and prevent leftovers and dirt from remaining on the main tray 20. Further, even after cleaning, the cleaning water that falls on the cleaning water introduction portion 70 along the inner surfaces of the side walls 3e and 3f on the left and right sides of the cleaning tank 3 is also guided onto the main tray 20 in the same manner, and the main tray 20 It is possible to prevent water droplets and leftovers from adhering to the peripheral edge and falling onto the floor surface.

Further, the washing water introduction portion 70 is provided above the main tray 20 so as to cover the peripheral edge of the main tray 20. With this configuration, the washing water during washing is surely introduced onto the main tray 20, flows into the gap between the main tray 20 and the wall surface of the washing tank 3, and leftovers and dirt adhere to the peripheral edge of the main tray 20. It can be suppressed.

Further, the washing water introduction portion 70 is provided above the tray rail 24 so as to cover the tray rail 24 on which the main tray 20 moves. With this configuration, it is possible to prevent leftovers and dirt from adhering to the tray rail 24 and hindering the movement of the main tray 20 in the front-rear direction.

Further, the washing water introduction portion 70 is provided so as to be inclined downward toward the rear. With this configuration, the cleaning water applied to the inner surfaces of the side walls 3e and 3f on the left and right sides of the cleaning tank 3 during cleaning is concentrated as much as possible on the rear portion of the main tray 20 provided with the tray outlet 20b and the tray filter 41. It can be introduced and dropped onto the inner bottom 3d of the cleaning tank 3. As a result, it is possible to prevent leftovers and dirt from remaining on the upper surface of the main tray 20. In addition, it is possible to prevent water droplets, leftovers, and dirt from remaining on the surface of the washing water introduction portion 70 after washing.

Further, the washing water introduction portion 70 is provided so as to be inclined downward toward the inside of the washing tank 3. With this configuration, the cleaning water applied to the inner side surfaces of the side walls 3e and 3f on the left and right sides of the cleaning tank 3 can be reliably guided onto the main tray 20 during cleaning. In addition, it is possible to prevent water droplets, leftovers, and dirt from remaining on the surface of the washing water introduction portion 70 after washing.

In the present embodiment, the lower headrace 12 and the main tray 20 are provided independently, but the lower headrace 12 is integrally formed with the main tray 20, and the lower cleaning nozzle 10 is provided as the lower headrace. If it is provided above 12, it is not necessary to deform the shape of the lower tableware basket 7 in a convex shape in order to avoid the shape of the lower headrace 12, and there are few restrictions on the placement of the object to be cleaned 6 on the lower tableware basket 7. Become.

Further, in the present embodiment, the washing water introduction part 70 is provided on the left and right side walls 3e and 3f of the washing tank 3, but the same washing water introduction part is also provided on the inner side surface of the door body 4. You may be.

As described above, the dishwasher according to the present invention can prevent water droplets falling from the object to be washed placed on the dishwasher when the dishwasher is pulled out forward from falling on the floor surface. In addition, it is possible to prevent the dirt that has fallen from the object to be cleaned from accumulating and creating an unclean environment. Therefore, it is not only useful as a drawer-type dishwasher, but also applicable to applications such as washing machines using a drawer mechanism.

1 Dishwasher 2 Front opening 3 Washing tank 3a Front 3e, 3f Side wall 4 Door 5 Washing space 7 Lower tableware basket 8 Upper tableware basket 10 Lower washing nozzle 11 Upper washing nozzle 18 Washing drainage pump 19 Auxiliary tray storage 20 Main tray 20b Tray outlet 21 Auxiliary tray 21a First auxiliary tray 21b Second auxiliary tray 23 Tray roller (rolling support)
24 Tray rail 41 Tray filter (leftover filter)
70 Washing water introduction part

Claims (18)

Within the cleaning space, a cleaning tank having a front opening, a door body that covers the front opening of the cleaning tank and can be pulled out forward, a cleaning space formed by the cleaning tank and the door body, and the cleaning space. It is provided with a tableware basket to be stored, a cleaning nozzle for cleaning tableware and other objects to be cleaned stored in the tableware basket, and a main tray and an auxiliary tray that are pulled out together with the door body, and the main tray is the cleaning space. The auxiliary tray is a dishwasher provided below the main tray and outside the washing space. The dishwasher according to claim 1, wherein the auxiliary tray has a width dimension in the left-right direction larger than that of the main tray. The dishwasher according to claim 1 or 2, wherein the dish basket is also pulled out together with the door body. The dishwasher according to any one of claims 1 to 3, wherein at least one of the main tray and the auxiliary tray is removable. The dishwasher according to any one of claims 1 to 4, wherein the gap between the main tray and the auxiliary tray when the door body is pulled out is formed at intervals that allow the user's hands to enter. The dishwasher according to any one of claims 1 to 5, wherein the auxiliary tray is composed of a plurality of trays. A plurality of trays of the auxiliary tray are stacked and stored in the vertical direction when the door body covers the front opening of the washing tank, and are deployed in the pull-out direction when the door body is pulled out. Item 6. The dishwasher according to item 6. The dishwasher according to claim 7, wherein the plurality of trays of the auxiliary tray have an overlap portion between the plurality of trays when the door body is pulled out and deployed in the pull-out direction. A claim that the rearmost ends of the plurality of trays of the auxiliary tray are positioned rearward from the front surface of the washing tank when the door body is pulled out and the plurality of trays of the auxiliary tray are deployed in the pull-out direction. The dishwasher according to 7 or 8. The main tray is any one of claims 1 to 9, wherein the upper surface of the bottom portion is formed or arranged so as to be inclined downward toward the rear, and a tray outlet is provided at the rear portion so as to penetrate the upper surface and the lower surface of the bottom portion. The dishwasher described in item 1. The dishwasher according to claim 10, wherein the tray outlet is located behind the front surface of the washing tank when the door body is completely pulled out. The dishwasher according to claim 10 or 11, wherein the main tray is provided with a leftover filter for collecting leftovers contained in the washing water at the outlet of the tray. The dishwasher according to any one of claims 1 to 12, wherein the main tray is provided with a rolling support portion that supports the main tray while rolling with respect to the washing tank. The dishwasher according to any one of claims 1 to 13, wherein a washing water introduction portion for introducing washing water into the main tray is provided on the inner side surfaces of the left and right side walls of the washing tank. The dishwasher according to claim 14, wherein the washing water introduction portion is provided above the main tray so as to cover the peripheral edge of the main tray. The dishwasher according to claim 14 or 15, wherein the washing water introduction portion is provided above the tray rail so as to cover the tray rail on which the main tray moves. The dishwasher according to any one of claims 14 to 16, wherein the washing water introduction portion is provided so as to be inclined downward toward the rear. The dishwasher according to any one of claims 14 to 17, wherein the washing water introduction portion is provided so as to be inclined downward toward the inside of the washing tank.

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