CN112075900A - Tableware cleaning machine - Google Patents

Abstract

A rear strip part (79) of a lower tableware basket (7) of a tableware washing machine (1) at least partially has a movable rear strip part (81). The rear strip part (81) is positioned in front of the drainage filter (50) when the lower tableware basket (7) is pulled out, and forms a rear space part (80) through movement. Thus, after washing, the user can put his/her hand into the drain filter (50) through the rear space section (80), take out the drain filter (50), and remove the collected residue. In addition, when the drain filter (50) is taken out, the drain filter (50) is not easy to contact with the rear strip body part (81) after movement. Therefore, the drain filter (50) can be easily taken out from the dish washing machine (1). As a result, the dish washing machine (1) having excellent maintainability can be provided.

Description

Tableware cleaning machine

Technical Field

The present invention relates to a dish washing machine having a structure in which a dish basket on which items to be washed such as dishes are placed is pulled out forward from a washing tub.

Background

As disclosed in, for example, japanese patent application laid-open No. 2008-119205 (hereinafter, patent document 1), a conventional dish washing machine includes a dish basket composed of a strip body pulled out forward from a washing tub in accordance with the door being pulled out forward, a filter provided behind the dish basket for collecting residues of foods and the like flowing down at the time of washing, and the like.

However, in the conventional dish washing machine, when the user takes out the filter after washing, the rear strip of the dish basket becomes an obstacle, and it is difficult to put the hand into the filter. Further, when the filter is taken out, the filter is likely to come into contact with the strip at the rear of the dish basket, and therefore, it is difficult to smoothly take out the filter.

Disclosure of Invention

The invention provides a dish washing machine, which can be easily taken out by a user in order to remove residues such as food accumulated on a filter.

The dish washing machine of the present invention comprises: a cleaning tank having a front surface opening; a door body covering the front surface opening of the cleaning tank; a cleaning space formed by a cleaning tank and a door body; and a dish basket which is accommodated below the washing space and can be pulled out forward. The dish washing machine of the present invention further comprises: a washing unit for washing the objects stored in the dish basket; and a filter for collecting the attachment of the object to be cleaned at the bottom of the cleaning tank. The rear strip portion of the dish basket at least partially has a movable rear strip portion, and the rear strip portion is positioned in front of the filter when the dish basket is pulled out, and forms a rear space portion formed by the movement of the rear strip portion.

According to this configuration, when the user takes out the filter to remove the residue such as food collected in the filter after washing, the rear space portion formed by the movement of the rear bar portion of the dish basket can be secured. This allows the user to easily insert a hand into the filter through the rear space portion. Further, when the filter is taken out, the filter is less likely to come into contact with the moved rear stripe portion. Therefore, the user can easily take out the filter from the dish washing machine through the rear space part of the dish basket. Thus, the dish washing machine with excellent maintainability can be provided.

Drawings

Fig. 1 is a perspective view of a dishwasher according to embodiment 1 of the present invention in a state where a door body is pulled out forward.

Fig. 2 is a side sectional view of the dishwasher according to embodiment 1 in a state where the door body is pulled out forward.

Fig. 3 is a side sectional view of the dishwasher according to embodiment 1 in a state where the door is closed.

Fig. 4 is a front sectional view of a main portion of the dishwasher according to embodiment 1 in a state where the door is closed.

Fig. 5A is a front cross-sectional view of a main portion of the vicinity of the slide rail in a state where the door body is closed in the dishwasher according to embodiment 1.

Fig. 5B is a main-part side sectional view of the dishwasher according to embodiment 1, in which the auxiliary tray is removed and the door body is pulled out forward.

Fig. 6A is a side sectional view of a main portion of the dishwasher in accordance with embodiment 1 in the vicinity of the auxiliary tray in a state where the door is closed.

Fig. 6B is a side sectional view of a main portion of the dishwasher according to embodiment 1 in the vicinity of the auxiliary tray in a state where the door body is pulled out forward.

Fig. 7 is a plan cross-sectional view of a main portion of the dishwasher according to embodiment 1 in the vicinity of the main tray with the door body pulled out forward.

Fig. 8A is a perspective view of the dishwasher according to embodiment 1 with the door body pulled out forward.

Fig. 8B is a perspective view of the dishwasher according to embodiment 1 in a state in which the door body is pulled out forward and the rear strip portion of the lower dish basket is rotated forward.

Fig. 9A is a perspective view of a lower dish basket of the dish washing machine according to embodiment 1.

Fig. 9B is a perspective view of the dishwasher according to embodiment 1 in a state in which the rear strip portion of the lower dish basket is rotated forward.

Fig. 10 is a side sectional view showing the flow of the washing water in the washing step of the dishwasher according to embodiment 1.

Fig. 11A is a perspective view of a lower dish basket of the dish washing machine according to embodiment 2 of the present invention.

Fig. 11B is a perspective view of the dishwasher according to embodiment 2 in a state in which the rear linear body portion of the lower dish basket is rotated rearward.

Fig. 12A is a perspective view of a lower dish basket of the dish washing machine according to embodiment 3 of the present invention.

Fig. 12B is a perspective view of the lower dish basket of the dishwasher according to embodiment 3 in a state in which the rear strip portion slides downward.

Fig. 13A is a perspective view of a lower dish basket of the dish washing machine according to embodiment 4 of the present invention.

Fig. 13B is a perspective view of the dishwasher according to embodiment 4 of the present invention in a state in which the rear linear body portion of the lower dish basket is detached.

Detailed Description

Embodiments of the present invention are described below with reference to the drawings. The present invention is not limited to the embodiment.

In the following, a pull-out built-in type dish washing machine will be described as an example of the dish washing machine, but the dish washing machine is not limited thereto. For example, a front opening built-in type dishwasher, a desk type dishwasher, and the like are also included.

(embodiment mode 1)

The following describes a schematic configuration of the dish washing machine according to embodiment 1 with reference to fig. 1.

Fig. 1 is a perspective view of a dishwasher 1 according to embodiment 1 of the present invention in a state where a door 4 is pulled out forward.

As shown in fig. 1, dishwasher 1 according to embodiment 1 includes washing tub 3 having front surface opening 2, door 4, washing space 5, lower dish basket 7, upper dish basket 8, and the like. Door 4 is configured to be movable forward and backward and covers front surface opening 2 of cleaning tub 3. Washing space 5 is formed surrounded by washing tub 3 and door 4, and houses lower dish basket 7, upper dish basket 8, and the like. The lower basket 7 and the upper basket 8 are configured to be movable forward and backward, and on which the objects to be washed 6 such as dishes are placed. The lower basket 7 and the upper basket 8 are made of a metal material such as stainless steel. The lower dish basket 7 and the upper dish basket 8 are shaped like a basket including front, left and right side, rear, and lower strips, which will be described later. Hereinafter, the lower cutlery basket 7 and the upper cutlery basket 8 will be sometimes described as "cutlery baskets".

The door 4 includes an operation portion 9 including a button and the like on an upper surface thereof. The user can set, for example, on/off of the power supply, start-up, pause, washing and drying programs, and switching of washing operation conditions by button operation of the operation unit 9.

Hereinafter, for example, as shown in fig. 1, the front surface opening 2 side of cleaning tank 3 is defined as the front, the opposite side of front surface opening 2 is defined as the rear, the right side is defined as the right when viewed from the front to the rear, and the left side is defined as the left when viewed from the front to the rear, whereby the description will be made.

In the above description, the configuration including two cutlery baskets, i.e., the lower cutlery basket 7 and the upper cutlery basket 8, has been described as an example, but the present invention is not limited thereto. For example, one dish basket or three or more dish baskets may be provided depending on the amount of the objects to be washed 6.

In the above description, the two dish baskets are described as an example in which the metal strip bodies constitute the two dish baskets, but the present invention is not limited to this. For example, the two dish baskets may be formed of a metal coated with a material such as nylon or a resin material such as polypropylene (PP).

As described above, the dish washing machine 1 according to embodiment 1 is configured.

Next, the internal structure of the dish washing machine 1 will be described with reference to fig. 2 and 3.

Fig. 2 is a side sectional view of dishwasher 1 according to embodiment 1 in a state where door 4 is pulled out forward. Fig. 3 is a side sectional view of dishwasher 1 according to embodiment 1 in a state where door 4 is closed.

As shown in fig. 2 and 3, washing tub 3 includes front opening 2, rear wall 3g, upper wall 3c, inner bottom 3d, and side walls 3e and 3f, and front opening 2 is located on the front surface and is opened and closed by door 4. Rear wall 3g is disposed rearward opposite front surface opening 2, and closes the rear of cleaning tub 3. Upper wall 3c closes the upper side of washing tub 3. The insole 3d is disposed below so as to face the upper wall 3 c. The side walls 3e and 3f are disposed on the left and right sides of the cleaning tank 3 so as to face each other. The cleaning space 5 is formed into a substantially rectangular parallelepiped (including a rectangular parallelepiped). Cleaning space 5 can be surrounded in a liquid-tight manner by closing front surface opening 2 of cleaning tub 3 configured as described above with door 4.

In addition, dishwasher 1 of embodiment 1 includes lower washing nozzle 10 and upper washing nozzle 11 for spraying washing water. The lower washing nozzle 10 and the upper washing nozzle 11 constitute a washing section. The lower washing nozzle 10 washes the objects to be washed 6 stored in the lower dish basket 7. The upper washing nozzle 11 washes the objects to be washed 6 stored in the upper dish basket 8. The lower dish basket 7, the lower washing nozzle 10, the upper dish basket 8, and the upper washing nozzle 11 are all disposed in the washing space 5 in a state where the door 4 is closed.

Specifically, the lower washing nozzle 10 is rotatably provided below the lower dish basket 7. The lower washing nozzle 10 is connected to the lower water guide passage 12, and when the lower dish basket 7 is viewed from above, the lower washing nozzle 10 is disposed substantially at the center (including the center). The lower washing nozzle 10 has a hollow space through which washing water flows, and one or more injection holes 10a are provided in an upper surface of the lower washing nozzle 10. The jet holes 10a jet washing water obliquely upward toward the objects 6 to be washed on the lower dish basket 7. At this time, the lower washing nozzle 10 is rotated in a direction opposite to the washing water jetting direction by a reaction force generated when the washing water supplied from the lower water guide passage 12 is jetted from the jetting hole 10 a.

In the above description, the configuration in which the ejection holes 10a are provided only on the upper surface of the lower washing nozzle 10 has been described as an example, but the present invention is not limited to this. For example, an injection hole may be further provided below the lower washing nozzle 10. Therefore, after washing, the washing water can be discharged from the lower injection hole, and the washing water is prevented from staying in the lower washing nozzle 10.

The lower water passage 12 is formed in a hollow tubular shape. The lower water guide passage 12 is formed to extend in a substantially horizontal front-rear direction (including a horizontal front-rear direction), and is bent downward above the lower washing nozzle 10.

The lower water guide passage 12 is fixed to the lower strip 7a of the lower dish basket 7 and moves in the front-rear direction together with the lower dish basket 7. When lower water guide passage 12 moves forward, the rear end of lower water guide passage 12 is disengaged from tubular lower coupling portion 13 fixed to rear wall 3g of washing tub 3. On the other hand, when the lower dish basket 7 and the lower water guide passage 12 move rearward, the rear end of the lower water guide passage 12 is coupled to the lower coupling portion 13. This enables the washing water to be supplied to the lower washing nozzle 10.

Lower dish basket 7 is provided above lower washing nozzle 10 in substantially the entire washing space 5 of washing tub 3 when viewed from above. The lower cutlery basket 7 is supported on both left and right side surfaces of the lower cutlery basket 7 by a pair of left and right lower cutlery basket rails 14 so as to be movable in the front-rear direction. Lower dish basket rails 14 are held at lower portions of inner surfaces of left and right side walls 3e and 3f of washing tub 3. This allows lower dish basket 7 to be drawn out from front surface opening 2 to the front of washing tub 3. The lower dish basket 7 is configured to be able to store large dishes, chopping boards, large dishes such as pots, and cooking utensils.

Upper washing nozzle 11 is supported and fixed to rear wall 3g of washing tub 3 in a cantilever manner via upper water guide passage 15. The upper washing nozzle 11 is rotatably provided below the upper dish basket 8 when the door 4 is closed. The upper washing nozzle 11 is connected to the upper water guide passage 15, and when the door 4 is closed and the upper dish basket 8 is viewed from above, the upper washing nozzle 11 is disposed substantially at the center (including the center). Upper washing nozzle 11 has a hollow space through which washing water flows, and one or more jet holes 11a are provided in the upper surface of upper washing nozzle 11. The jet holes 11a jet washing water obliquely upward toward the objects 6 to be washed on the upper dish basket 8. At this time, the upper washing nozzle 11 is rotated in a direction opposite to the washing water jetting direction by a reaction force generated when the washing water supplied from the upper water guide passage 15 is jetted from the jetting hole 10 a.

In the above description, the configuration in which the ejection holes 11a are provided only on the upper surface of the upper washing nozzle 11 has been described as an example, but the present invention is not limited to this. For example, an ejection hole may be further provided below the upper washing nozzle 11. This enables the washing water to be discharged from the lower injection hole after washing, thereby preventing the washing water from staying in the upper washing nozzle 11. In addition, the objects 6 to be washed in the lower dish basket 7 can be washed by the washing water ejected from the lower ejection holes during washing.

The upper water passage 15 is formed in a hollow tubular shape. The upper water guide passage 15 is formed to extend in a substantially horizontal front-rear direction (including a horizontal front-rear direction), and is bent downward above the upper washing nozzle 11. The rear end of upper water guide passage 15 is coupled to upper coupling portion 16, and is supported and fixed to rear wall 3g of washing tub 3 in a cantilever manner. The upper coupling portion 16 is formed of an elbow-shaped pipe fixed to the rear wall 3g of the washing tub 3. The upper water guide passage 15 transmits the washing water supplied through the upper coupling portion 16 to the upper washing nozzle 11.

When door 4 is closed, upper dish basket 8 is disposed substantially over washing space 5 of washing tub 3 above upper washing nozzle 11, as viewed from above. The upper basket 8 is supported on both left and right side surfaces of the upper basket 8 by a pair of left and right upper basket rails 17 so as to be movable in the front-rear direction. Upper dish basket rails 17 are held at upper portions of inner side surfaces of left and right side walls 3e and 3f of washing tub 3. Thereby, upper dish basket 8 can be pulled out from front surface opening 2 to the front of washing tub 3. The upper dish basket 8 is configured to be able to store small dishes such as bowls, dishes having a diameter of 20cm or less, cups, and cups.

The washing tub 3 has a concave drain opening 30, for example, provided at the lowermost portion of the washing space 5. The washing drain pump 18 is disposed below and outside the bottom surface of the washing tub 3. The pump water passage 31 constitutes a path for communicating the drain port 30 with the wash drain pump 18.

For example, when the washing drain pump 18 rotates forward, the washing water for washing the object 6 is sent to the lower washing nozzle 10 and the upper washing nozzle 11 through the washing water passage 32. The washing water sent from the washing water drain pump 18 is branched by the branch portion 32a through the washing water passage 32 and sent to two paths, i.e., the lower washing nozzle 10 and the upper washing nozzle 11. On the other hand, when washing drain pump 18 is reversed, the valve is switched to discharge the washing water in washing tub 3 after washing to the outside of dishwasher 1.

In the above description, the upper water guide passage 15 is described as an example of a structure that is coupled to the upper coupling portion 16 at the rear wall 3g of the washing tub 3 and supported and fixed in a cantilever manner, but the present invention is not limited to this. For example, the following configuration may be adopted as in the configuration of the lower water guide passage 12: the upper water guide passage 15 is fixed to the lower strip of the upper basket 8, and the upper water guide passage 15 is movable in the front-rear direction together with the upper basket 8. This allows the height of the upper dish basket 8 to be adjusted according to the shape and size of the stored objects to be washed 6. At this time, the height of the upper water guide passage 15 is also changed by the height adjustment of the upper dish basket 8. Therefore, the position of the upper joint 16 connected to the upper water passage 15 needs to be changed. In this case, a plurality of upper coupling portions 16 may be provided at positions of rear wall 3g of washing tub 3 corresponding to the height adjustment position of upper dish basket 8. At this time, the connection port of the upper coupling portion 16 is configured to be automatically closed when the upper water passage 15 is disconnected, and to be automatically opened when the upper water passage 15 is connected. Accordingly, regardless of the height position of the upper dish basket 8 to be adjusted, the washing water can be delivered to the upper washing nozzle 11 through the upper water guide passage 15 connected to the upper coupling portion 16.

In the above description, the circulation of the washing water in washing tub 3 and the drainage of the washing water to the outside of washing tub 3 are performed by one washing drain pump 18, but the present invention is not limited thereto. For example, two separate pumps may be used to perform the circulation and drainage of the washing water.

The dishwasher 1 according to embodiment 1 further includes a main tray 20 and an auxiliary tray 21, and the auxiliary tray is sometimes referred to as a tray in the present application. The main tray 20 and the auxiliary tray 21 receive water droplets or the like falling from the objects to be washed 6 placed on the lower basket 7 and the upper basket 8. The main tray 20 and the sub tray 21 can be pulled out forward together with the door body 4. At this time, main tray 20 and auxiliary tray 21 are disposed with a gap between left side wall 3e and right side wall 3f of washing tub 3. This enables the main tray 20 and the auxiliary tray 21 to smoothly move in and out of the washing tub 3 together with the door 4.

The main tray 20 is disposed below the lower cutlery basket 7, and the main tray 20 is formed in a shape having a width dimension in the left-right direction larger than a width dimension in the left-right direction of the lower cutlery basket 7 when viewed from above the lower cutlery basket 7. When the door 4 is closed, the main tray 20 is disposed inside the cleaning space 5.

The auxiliary tray 21 is disposed below the main tray 20. When door 4 is closed, auxiliary tray 21 is housed in auxiliary tray housing 19 provided outside cleaning space 5 below cleaning tub 3 (outside the cleaning space). The auxiliary tray 21 is disposed so that, when the door 4 is pulled out, the height-direction interval between the auxiliary tray 21 and the main tray 20 is secured to be, for example, 5cm or more. The interval of 5cm or more may be, for example, a case where a hand of the user is inserted, and the present invention is not limited thereto. This allows the user to easily detach and attach the main tray 20 and the like.

Specifically, the main tray 20 is formed in a concave shape that opens upward, and is made of a resin material with high rigidity, such as polypropylene (PP). The main tray 20 is disposed to be inclined downward toward the rear (for example, at an inclination angle of 5 degrees). The main tray 20 is configured to have a groove shape (concave shape) as follows: the peripheral edges of the side walls 3e and 3f of the main tray 20 facing 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. The front end portion of the main tray 20 is detachably fixed to the door 4 by being fitted to a claw of a main tray claw portion 20a provided in the door 4.

The inclination of the main tray 20 may be formed at least on the upper surface side of the groove-shaped bottom portion. Further, if the bottom surface side (back surface) of the groove-like bottom portion is also formed, even if water droplets adhere to the bottom surface side, the water droplets flow down toward the cleaning tank 3 along the inclination of the bottom surface, which is more preferable.

When the front end portion of the main tray 20 is fixed to the door 4, the main tray 20 may be tilted by tilting the main tray 20 rearward and downward to fix the main tray 20.

In the above description, the configuration in which the inclination of the main tray 20 has a constant inclination angle has been described as an example, but the present invention is not limited thereto. For example, the downward inclination of the main tray 20 toward the rear may be configured by a plurality of inclination angles. The inclination of the main tray 20 may be an inclination angle that gradually and continuously changes.

The main tray 20 includes tray rollers 23 (rolling support portions) rotatably provided on the left and right sides of the rear end portion. The tray rollers 23 support the main tray 20 while rolling on the upper surfaces of tray rails 24 provided on the inner surfaces of the inner walls 3e and 3f on the left and right sides of the cleaning tank 3. That is, when the door 4 is pulled out, the main tray 20 is supported by the tray rollers 23 and pulled out together with the door 4 along the tray rails 24.

At this time, it is more preferable to apply hydrophobic coating to the surface of the master tray 20. Thus, the washing water attached to the main tray 20 is formed into water droplets, and thus easily rolls on the surface of the main tray 20. Therefore, the washing water is prevented from staying on the surface of main tray 20, and the washing water is prevented from falling down into washing tub 3 along the inclination. As a result, the cleaning water can be prevented from falling to the ground.

The auxiliary tray 21 includes a 1 st auxiliary tray 21a and a 2 nd auxiliary tray 21b provided below the 1 st auxiliary tray 21 a. The 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are formed in a concave shape (see fig. 5A) opened upward, and are formed of a resin material having high rigidity, such as PP. Auxiliary tray 21 is disposed substantially horizontally (including horizontally) outside the vicinity of the bottom of washing tub 3. The 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are disposed to overlap each other in the vertical direction in a state where the door 4 is closed. On the other hand, when the door 4 is pulled out, the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are pulled out together with the door 4 while being displaced in the front-rear direction relative to each other.

Further, dishwasher 1 according to embodiment 1 includes sealing portion 25 provided continuously along the square outer periphery on the surface (inner surface) of door 4 on washing tub 3 side. The sealing portion 25 is formed in a hollow shape, for example, from silicone rubber or the like. The sealing portion 25 has a magnetic force, such as rubber magnet, built in the surface of the cleaning tank 3. On the other hand, a cleaning tank sealing surface 26 of cleaning tank 3 facing sealing section 25 is made of a metal having magnetism, for example, SUS430, which is stainless steel. Therefore, when door 4 is closed from the pulled-out state, sealing portion 25 is pulled into washing tub sealing surface 26 by the magnetic force. Thereby, door 4 is closed with respect to washing tub 3 to maintain liquid tightness.

That is, after sealing section 25 is pulled into cleaning tank sealing surface 26, the entire surface of sealing section 25 is attracted to cleaning tank sealing surface 26 by magnetic force, and cleaning tank 3 is sealed. Accordingly, even if some deformation occurs due to warping of door body 4, cleaning tank sealing surface 26, or door body 4 tilts forward, the sealing property of cleaning tank 3 during cleaning can be ensured. As a result, water leakage from cleaning space 5 of cleaning tank 3 to the outside can be prevented.

In the above description, the structure in which the seal portion 25 is continuously provided in a square shape is described as an example, but the present invention is not limited thereto. As long as the sealing property between door 4 and washing tub 3 can be ensured, for example, the sealing portion may be constituted by a partially interrupted connection.

In the above description, the example in which cleaning tank sealing surface 26 is made of SUS430 has been described, but the present invention is not limited to this. The material may be a material having magnetic properties, such as iron. The front surface of washing tub 3 other than washing tub sealing surface 26 may be made of a nonmagnetic material such as PP resin, for example.

In the above description, the structure in which the seal portion 25 is provided on the door 4 side has been described as an example, but the present invention is not limited to this. For example, the sealing portion may be provided on the cleaning tank 3 side, and a magnetic material may be used on the surface of the door 4 facing thereto.

As shown in fig. 2, cleaning tank 3 of embodiment 1 includes receiving portion 27 opened upward at the front bottom surface. At this time, cleaning tank sealing surface 26 is disposed rearward of front surface 3a of receiving section 27 of cleaning tank 3. Thereby, receiving unit 27 receives the washing water flowing downward along washing tub sealing surface 26. In addition, when door body 4 is suddenly pulled out during the washing process, receiving unit 27 receives the washing water flowing down along washing tub sealing surface 26 from the gap between sealing unit 25 of door body 4 and washing tub sealing surface 26 until washing water pump 18 is stopped. That is, even if some washing water flows down, the washing water can be received by the receiving part 27 without overflowing.

Hole 26a is provided in a part of cleaning tank sealing surface 26 on the lower side. Hole 26a returns the washing water stored in receiving unit 27 to washing tub 3. This prevents the washing water from overflowing from the receiving portion 27 and falling toward the installation surface of the dishwasher 1.

As shown in fig. 2 and 3, the door body 4 according to embodiment 1 includes a key-shaped hook 28 on the inner wall on the cleaning space 5 side. The hook 28 engages with a front strip substantially at the center (including the center) of the front portion of the lower dish basket 7. The engagement enables the door 4 and the lower dish basket 7 to move forward and backward in an interlocking manner. On the other hand, when the lower dish basket 7 is to be removed, the user lifts the front strip of the lower dish basket 7. This allows the front strip to disengage from the hook 28, and the lower cutlery basket 7 to be removed from the door 4.

The hook 28 has an inclined surface 28a integrally provided on the rear side. The inclined surface 28a is inclined rearward and downward. Thus, even when door 4 is pulled out forward and lower dish basket 7 is disposed in washing tub 3 by being disengaged from hook 28, the front strip of lower dish basket 7 is lifted along inclined surface 28a of hook 28 as door 4 is closed. In a state where the door 4 is closed, the front strip of the lower dish basket 7 engages with the hook 28. Accordingly, when the door 4 is pulled out forward next time, the lower dish basket 7 is also pulled out simultaneously with the door 4.

Further, water supply valve 29 is provided above the rear portion of washing tub 3 and directly connected to the tap water pipe. By opening water supply valve 29, tap water is supplied as washing water into washing tub 3.

Fan 33 is provided below the rear portion of the outside of washing tub 3. In the steps such as the drying step of the dish washing machine 1, the fan 33 sucks external air and supplies the air from the air blowing port 35 into the washing space 5 through the air blowing path 34. The air supplied to the cleaning space 5 is heated by a heater 36 disposed below the cleaning space 5. The heated air is supplied into the cleaning space 5 to dry the object to be cleaned 6 and the like inside. Then, the air is discharged to the outside through an exhaust port 37 provided in the upper surface or the side wall of the door 4. In addition to the above arrangement, the exhaust port 37 may be provided on the top surface or the side wall of the cleaning tank 3.

Temperature detection unit 38 is disposed outside the bottom surface of washing tub 3 so as to be in close contact with washing tub 3. Temperature detecting unit 38 indirectly detects the temperature of the washing water, air, and heater 36 in washing tub 3.

The control unit 40 is disposed below the outside of the bottom surface of the cleaning tank 3. Control unit 40 controls water supply valve 29 based on a signal from operation unit 9 operated by the user, and controls the supply of washing water into washing tub 3. Further, the control unit 40 controls the heater 36 based on the output of the temperature detection unit 38. The controller 40 controls the washing/draining pump 18, the fan 33, and the like, and sequentially executes a series of steps such as a washing step, a rinsing step, and a drying step.

Next, an internal structure of the dish washing machine 1 when viewed from the front will be described with reference to fig. 2 and 3 with reference to fig. 4.

Fig. 4 is a front sectional view of a main portion of dishwasher 1 according to embodiment 1 in a state where door 4 is closed.

As shown in fig. 2 to 4, dishwasher 1 according to embodiment 1 further includes a washing water introduction portion 70. Cleaning water introduction unit 70 is provided on the inner side surfaces of left and right side walls 3e and 3f of cleaning tub 3. The washing water introduction portion 70 is disposed at a position above the main tray 20 so as to cover the left and right peripheral edges of the main tray 20 when viewed from above.

Specifically, as shown in fig. 2, the cleaning water inlet portion 70 is disposed so as to be inclined downward toward the rear (for example, at an angle of about 5 degrees to 10 degrees). As shown in fig. 4, cleaning water introduction unit 70 is disposed to be inclined downward (e.g., at an angle of about 5 degrees to 30 degrees) as it goes from the inner surfaces of left and right side walls 3e and 3f of cleaning tub 3 toward the inside of cleaning space 5. With this configuration, the washing water introduction unit 70 guides the washing water during and after the washing of the object 6 to be washed to the main tray 20.

The washing water introduction portion 70 is disposed to cover the upper surface of the tray rail 24 at a position above the tray rail 24, and the tray roller 23 of the main tray 20 is moved in a rolling manner on the tray rail 24. With this configuration, the wash water can be suppressed from splashing on the tray rail 24. Further, it is possible to suppress adhesion of residue and dirt contained in the washing water to the tray rail 24.

In this case, the washing water introduction part 70 may be inclined rearward and downward at least on the upper surface side of the washing water introduction part 70, but it is more preferable to form the washing water introduction part also on the lower surface side. Similarly, although the washing water introduction unit 70 may be formed at least on the upper surface side so as to be inclined inward from the inner surfaces of the left and right side walls 3e and 3f of the washing tub 3, it is more preferable to form the washing water introduction unit also on the lower surface side. Thus, even if water droplets adhere to the lower surface side of washing water introduction unit 70, the water droplets can be caused to flow down toward washing tub 3.

In the above description, the structure in which the washing water introduction part 70 has a constant inclination angle is described as an example, but the present invention is not limited thereto. Each inclination may be constituted by a plurality of inclination angles, or may be constituted by inclination angles that gradually and continuously change.

In the above description, the example in which the cleaning water introduction part 70 is formed in a flat plate shape has been described, but the present invention is not limited thereto. For example, the washing water inlet 70 may be formed in a curved shape.

As shown in fig. 4, dishwasher 1 according to embodiment 1 includes drain strainer 50, which is simply referred to as a strainer, disposed in drain port 30. In the washing step and the rinsing step, the drain filter 50 collects dirt of residues such as food adhering to the object 6 to be washed.

The drain strainer 50 includes three parts, a 1 st drain strainer 50a, a 2 nd drain strainer 50b, and a 3 rd drain strainer 50 c. The 2 nd drain strainer 50b is provided around the 1 st drain strainer 50 a. The 3 rd drain strainer 50c is provided to cover the upper side of the drain port 30.

The 1 st drain filter 50a is formed in a cylindrical shape from a resin material such as PP. One or more substantially square (including square) holes having one side of, for example, about 4.5mm are provided on the outer peripheral surface and the bottom surface of the 1 st drain filter 50 a. The 2 nd drain filter 50b is formed in a cylindrical shape from, for example, a stainless steel net. One or more substantially square (including square) holes having one side of, for example, about 4.5mm are provided on the outer peripheral surface of the 2 nd drain strainer 50 b. The 3 rd drain strainer 50c has a hole 50ca into which the 1 st drain strainer 50a and the 2 nd drain strainer 50b are fitted from above. The 3 rd drain filter 50c is formed of, for example, a plate-shaped stainless steel plate provided with one or more punched holes having a diameter of, for example, about 1mm, except for the holes 50 ca.

As shown in fig. 2, a pump water passage 31 communicating with the wash drain pump 18 is connected to the bottom surface of the drain port 30 on the outer side of the 2 nd drain strainer 50 b.

The interior of the dish washing machine 1 is configured as described above.

Next, the structure of the slide rail 60 for supporting the auxiliary tray 21 of the dish washing machine 1 will be described with reference to fig. 5A and 5B.

Fig. 5A is a front cross-sectional view of a main portion of the vicinity of the slide rail 60 in the state where the door body 4 is closed in the dishwasher 1 according to embodiment 1. Fig. 5B is a main-part side sectional view of the dishwasher 1 according to embodiment 1, in which the auxiliary tray 21 is removed and the door 4 is pulled out forward.

As shown in fig. 5A and 5B, the pair of left and right slide rails 60 includes a fixed rail 60a, a 1 st movable rail 60B, a 2 nd movable rail 60c, and the like. Fixed rail 60a is attached to the inner surfaces of left and right side walls 3e and 3f below the outside of cleaning space 5 of cleaning tub 3. The 1 st movable rail 60b is slidably attached to the fixed rail 60 a. The 2 nd movable rail 60c is slidably attached to the 1 st movable rail 60 b.

The door 4 is fixed to a front end portion 61a of an angle 61 on the lower side of the door 4, and the angle 61 is formed of a metal plate such as stainless steel and provided as a pair on the left and right. The angle iron 61 is disposed on the 2 nd movable rail 60c of the slide rail 60. The rear end portion 61b of the angle steel 61 is engaged with an engaging portion 60d formed on the 2 nd movable rail 60 c. In this state, the front side of the angle iron 61 is fixed to the 2 nd movable rail 60c by a screw. Thus, when door body 4 is pulled out forward, angle iron 61 and second movable rail 60c are pulled out forward from front surface opening 2 of washing tub 3 while supporting door body 4 substantially vertically (including vertical).

As shown in fig. 5A, left and right flange portions 21aa of the 1 st auxiliary tray 21a of the auxiliary tray 21 are placed on the upper surfaces of the angle irons 61. The 2 nd auxiliary tray 21b is held by the left and right tray sliding portions 21c of the 1 st auxiliary tray 21a to be slidable in the front-rear direction with respect to the 1 st auxiliary tray 21 a.

The slide rails 60 of the dishwasher 1 for supporting the auxiliary tray 21 are configured as described above.

Next, the structure and operation of the auxiliary tray 21, which is simply referred to as a tray, of the dish washing machine 1 will be described with reference to fig. 6A and 6B.

Fig. 6A is a side sectional view of a main portion of the dishwasher 1 according to embodiment 1, in the vicinity of the auxiliary tray 21 in a state where the door 4 is closed. Fig. 6B is a side cross-sectional view of a main portion of the dishwasher 1 according to embodiment 1, in the vicinity of the auxiliary tray 21, in a state where the door 4 is pulled out forward.

As shown in fig. 6A and 6B, the rib 21ab provided at the front portion of the 1 st auxiliary tray 21a of the auxiliary tray 21 is caught by the catching portion 4a of the door 4. Thereby, the 1 st auxiliary tray 21a is engaged with the door body 4. On the other hand, the auxiliary tray claw portion 21d provided at the rear portion of the 1 st auxiliary tray 21a is engaged with the angle iron 61. Thereby, the 1 st auxiliary tray 21a is fixed to the angle 61 so as to be detachable from the angle 61.

With the above configuration, as the door 4 is pulled out from the closed state, the 1 st auxiliary tray 21a is first pulled out together with the angle iron 61. Then, the engaging portion 21e on the rear side of the 1 st auxiliary tray 21a is engaged with the engaging portion 21f on the front side of the 2 nd auxiliary tray 21 b. Then, the 2 nd auxiliary tray 21b is also pulled out forward.

At this time, the relationship between the front-rear lengths of the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b is set as follows.

That is, the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are set to the following lengths: when the door body 4 is pulled out forward to the limit of the slide rail 60, the tray sliding portion 21c leaves an overlapping portion 21g in the front-rear direction of the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21 b. This prevents unstable operation and movement of the 2 nd auxiliary tray 21b in the right and left oblique directions. Therefore, the detachment of the 2 nd auxiliary tray 21b from the slide rail 60 can be prevented.

Similarly, the relationship between the front-rear length and the width dimension in the left-right direction of both the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are set as follows.

That is, the 1 st and 2 nd auxiliary trays 21a and 21b are set such that, when the door body 4 is pulled out forward to the limit of the slide rail 60, an overlapping portion 21g in the front-rear direction is left over the entire width in the left-right direction. This can more reliably prevent the cleaning water dropped onto the 1 st auxiliary tray 21a from falling onto the floor.

The 1 st auxiliary tray 21a, the 2 nd auxiliary tray 21b, and the angle iron 61 are configured as described above. Accordingly, when the lower basket 7 and the upper basket 8 are drawn out forward together with the door 4, the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are spread out below the main tray 20. At this time, the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are spread out to completely cover a larger range than the main tray 20 when viewed from the upper surface. As a result, the water droplets can be prevented from falling from the main tray 20 to the ground.

Conversely, when the door 4 is closed from the pulled-out state, first, the 1 st auxiliary tray 21a is housed together with the angle iron 61 into the auxiliary tray housing section 19 below the cleaning tub 3. At this time, the 2 nd auxiliary tray 21b does not move backward unless an abnormally large frictional force is applied to the tray sliding portion 21 c. Therefore, the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are displaced in the front-rear direction relative to each other at the tray slide portion 21 c. Thereby, the 1 st auxiliary tray 21a moves rearward. When the door 4 is further closed, as shown in fig. 6A, the tip end portion (engaging portion 21f) of the 2 nd auxiliary tray 21b abuts against the inner wall 4b of the door 4. Thereby, the 2 nd auxiliary tray 21b is pushed rearward by the door 4. Then, the 2 nd auxiliary tray 21b is finally accommodated in the auxiliary tray accommodating portion 19 formed outside the cleaning space below the outside of the cleaning tank 3.

As described above, the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are both arranged substantially horizontally (including horizontal). Thus, the water droplets falling on the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are not concentrated on a specific portion but dispersed. In addition, the dispersed water droplets contact the outside air with a large surface area. As a result, natural evaporation of the water droplets is promoted, and the water droplets are evaporated in a short time. That is, in embodiment 1, it is not necessary to separately provide a structure for discharging falling water droplets. Further, the user does not have to take extra labor and time to wipe off the water droplets.

Dish washing machine 1 according to embodiment 1 further includes stopper portion 3b provided on front surface 3a of washing tub 3. The stopper portion 3b prevents the 2 nd auxiliary tray 21b from being separated forward from the cleaning bath 3. That is, when the door body 4 is pulled out forward, the stopper portion 3b abuts against the engaging portion 21h on the rear side of the 2 nd auxiliary tray 21 b. This prevents the 2 nd auxiliary tray 21b from moving further forward. As a result, the 2 nd auxiliary tray 21b does not come off forward from the cleaning tank 3.

The rear end of the 2 nd auxiliary tray 21b is not exposed forward of the front surface 3a of the cleaning tank 3. Therefore, the washing water falling from the lower and upper baskets 7 and 8 can be prevented from falling to the floor.

In the above description, the configuration in which the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b, which are two auxiliary trays, are provided as the auxiliary tray 21 has been described as an example, but the present invention is not limited thereto. When the arrangement space of the drain port 30, the wash drain pump 18, and the like can be secured, one auxiliary tray, three or more auxiliary trays may be provided. In the case of the configuration of three or more auxiliary trays, the rearward length of the auxiliary tray storage portion can be further shortened. Therefore, a larger space for disposing the drain port 30, the washing drain pump 18, and the like can be secured.

In the above description, the example in which the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21b are formed of a resin material having high rigidity has been described, but the present invention is not limited thereto. If the lower side of the main tray 20 can be covered when the door body 4 is pulled out forward, the sub tray may be configured using a flexible sheet material such as a thin sheet of metal or resin, cloth, or rubber. This allows the auxiliary tray to be stored in a folded configuration or a rolled configuration when the door 4 is closed.

The auxiliary tray 21 of the dish washing machine 1 is configured as described above.

The structure of the main tray 20 of the dish washing machine 1 will be described with reference to fig. 2 and using fig. 7.

Fig. 7 is a plan cross-sectional view of a main portion of the dishwasher 1 according to embodiment 1 in the vicinity of the main tray 20 with the door 4 being pulled out forward.

As shown in fig. 7, the auxiliary tray 21 according to embodiment 1 is configured to have a shape larger than the main tray 20 in the lateral direction as described above.

The main tray 20 includes one or more rectangular tray outlet ports 20b, and the tray outlet ports 20b are disposed at the rear of the main tray 20 and have a longitudinal direction in the left-right direction.

As shown in fig. 2, the tray flow outlet 20b is provided to penetrate the upper surface and the lower surface (back surface) of the bottom of the concave main tray 20. During and after the washing, the tray outlet 20b guides the washing water and water droplets falling onto the main tray 20 to the inside of the washing tub 3. That is, the falling washing water or water droplets are guided to tray outlet 20b along the upper surface of the bottom of concave main tray 20 inclined rearward and downward, and are guided into washing tub 3.

As shown in fig. 2 and 7, a tray filter 41 is detachably mounted on the tray outflow port 20 b. The tray filter 41 has one or more holes formed in a square shape having one side of, for example, about 4.5 mm. In the cleaning, the tray filter 41 functions as a residue filter, and the residue contained in the cleaning water flowing through the main tray 20 is collected by the holes. That is, when the user pulls out the door 4, the tray filter 41 is also pulled out forward. Thus, the user can detach the tray filter 41 and easily treat (remove) the residue collected in the tray filter 41.

In the above description, the tray filter 41 is described as being detachably provided to the main tray 20, but the present invention is not limited to this. In embodiment 1, since the main tray 20 is detachably attached to the door 4, the tray filter 41 may be provided integrally with the main tray 20. Thus, as described above, the main tray 20 can be detached, and the residue collected in the tray filter 41 can be easily treated (removed).

Further, tray outlet 20b is disposed at a position rearward of front surface 3a of cleaning tub 3 in a state where door 4 is completely pulled forward. Thus, even if the washing water flows out from tray outlet 20b, the washing water drops onto receiving unit 27 of washing tub 3. Therefore, the cleaning water can be prevented from falling onto the auxiliary tray 21 and the floor.

That is, in embodiment 1, as described above, the cleaning water is prevented from falling onto the auxiliary tray 21 as much as possible. This makes it easy to dry the washing water on the auxiliary tray 21 by natural evaporation. As a result, the number of times of maintenance such as cleaning of the auxiliary tray 21 can be reduced.

In the above description, the configuration in which the tray outlet 20b is provided in the main tray 20 has been described as an example, but the present invention is not limited to this. For example, instead of providing the tray outlet 20b, a wall surface standing on the rear side of the main tray 20 may be removed to allow the washing water to flow from the rear portion of the main tray 20 into the washing tub 3. Further, instead of providing the tray strainer 41, the drain strainer 50 shown in fig. 4 may be used to collect large residues.

In the above description, the example in which the main tray 20 is formed of a resin material having high rigidity has been described, but the present invention is not limited to this. The main tray may be formed of a flexible sheet material such as a metal or resin sheet, cloth, or rubber, as long as the lower portion of the lower dish basket 7 can be covered when the door 4 is pulled out forward. This allows the main tray to be housed in a folded configuration or a rolled configuration when the door 4 is closed.

The main tray 20 of the dish washing machine 1 is configured as described above.

Next, the structure of the lower dish basket 7 will be described as an example of the dish basket of the dish washing machine 1 with reference to fig. 8A to 9B.

Fig. 8A is a perspective view of dishwasher 1 according to embodiment 1 in a state where door 4 is pulled out forward. Fig. 8B is a perspective view of the dishwasher 1 according to embodiment 1 in a state where the door body 4 is pulled out forward and the rear strip portions 81 of the lower dish basket 7 are rotated forward. Fig. 9A is a perspective view of the lower dish basket 7 of the dish washing machine 1 according to embodiment 1. Fig. 9B is a perspective view of the dishwasher 1 according to embodiment 1 in which the rear strip 81 of the lower dish basket 7 is rotated forward.

As described above, the lower dish basket 7 is a basket-shaped body including the front body, the left and right side bodies, the rear body 79, the lower body 7a (see fig. 2), and the like.

As shown in fig. 8A to 9B, the lower dish basket 7 includes a rear strip portion 81, and the rear strip portion 81 is provided at least partially on the rear strip 79 and is configured to be rotatable forward. The rear bar portion 81 is normally disposed upright behind the lower basket 7 as shown in fig. 9A, and is held by holding members 82 disposed at the rear of the lower basket 7 and below the left and right, so as not to rotate forward during washing. Further, rear strip 81 is formed such that when door 4 is pulled out forward from washing tub 3, rear strip 81 is located forward of drain filter 50.

After the washing object 6 is washed, the rear strip 81 is rotated forward when the user removes the residue of food or the like collected in the drain strainer 50. Specifically, when the drainage filter 50 in which the residue is collected is to be taken out, the rear bar portion 81 is rotated forward. Thus, a rear space 80 indicated by a two-dot chain line in fig. 9B is formed at the position of the rear linear body 79 of the lower dish basket 7. The user can easily put his/her hand into the position of the drain filter 50 by the rear space portion 80. Further, when the user takes out the drainage strainer 50, the drainage strainer 50 is less likely to come into contact with the rearward strip portion 81 rotated forward. Therefore, the user can easily take out drain filter 50 from washing tub 3 of dishwasher 1 through rear space portion 80. This improves the workability of cleaning the drain filter 50 and the like.

When the user moves the lower dish basket 7 rearward, the rear bar portions 81 are held in the standing state by the holding members 82 to restrict further rearward rotation. This prevents the rear strip portion 81 from coming into contact with the rear wall 3g of the rear cleaning tub 3. Therefore, the user can move the lower dish basket 7 rearward without having to worry about the position of the rear bar portion 81.

As shown in fig. 3, the auxiliary tray 21 is housed in a position forward of the drain strainer 50 without interfering with the arrangement of the drain strainer 50. Therefore, even if drain filter 50 is provided behind the bottom of washing tub 3 with respect to auxiliary tray 21, drain filter 50 can be easily taken out from dishwasher 1 through rear space portion 80.

The lower dish basket 7 of the dish washing machine 1 is configured as described above.

Next, the operation and action of the dish washing machine 1 including the above-described components will be described.

That is, when washing the objects to be washed 6, etc., the user first pulls out the door 4 forward from the dishwasher 1. At this time, the lower cutlery basket 7, the main tray 20, and the auxiliary tray 21 engaged with the hook 28 of the door body 4 are pulled out forward in conjunction with the door body 4.

Then, the user places the objects to be washed 6 in the lower dish basket 7. The user further pulls out the upper dish basket 8 from the washing tub 3 and places the objects to be washed 6 in the upper dish basket 8. Then, the user puts detergent or the like into washing tub 3.

Next, the user inputs the program and conditions such as washing and drying through the operation unit 9 on the upper surface of the door 4.

Next, the user presses the power button and the start button to close the door 4. When the door opening/closing switch (not shown) detects the closing of the door 4, the control unit 40 starts the operation of the washing step of the dishwasher 1.

Next, the flow of the washing water will be described mainly with reference to fig. 10 regarding the operation of the washing step.

Fig. 10 is a side sectional view showing the flow of the washing water in the washing step of the dishwasher 1 of embodiment 1.

First, the controller 40 drives the wash drain pump 18. Thereby, the washing water remaining in washing tub 3 at the time of completion of the previous operation is discharged to the outside of dishwasher 1.

Subsequently, controller 40 drives water supply valve 29 to open water supply valve 29. Thereby, a predetermined amount of tap water is supplied as washing water into washing tub 3. When a predetermined amount of washing water is supplied into washing tub 3, the washing water flows into the interior of washing/draining pump 18 connected to water pumping passage 31 from water draining port 30 together with the detergent. Then, the washing water is pressurized by the washing drain pump 18. Thereby, the washing water in which the detergent is dissolved is conveyed to the washing water passage 32 and branched at the branching portion 32 a. A part of the washing water branched by the branching portion 32a is sent to the lower washing nozzle 10 through the lower coupling portion 13 and the lower water guide passage 12. On the other hand, a part of the remaining washing water branched by the branching portion 32a is sent to the upper washing nozzle 11 through the upper coupling portion 16 and the upper water guide passage 15.

Next, the delivered washing water is ejected upward from ejection holes 10a of lower washing nozzle 10 and ejection holes 11a of upper washing nozzle 11 toward objects to be washed 6 stored in upper basket 8 and lower basket 7. At this time, lower wash nozzle 10 and upper wash nozzle 11 are rotated in a direction opposite to the direction of spraying the wash water by the reaction force of the wash water sprayed from spray holes 10a and 11 a. This allows the stored object 6 to be washed to be sprayed with washing water without fail.

Most of the washing water that has washed the object 6 to be washed falls onto the main tray 20 and flows rearward of the washing tub 3 along the downward slope.

At this time, coarse residues are first filtered by the tray filter 41 (see fig. 7). Then, the fine residue is filtered off by the drain strainer 50. Then, the washing water from which the residue and the like have been filtered is recovered to the drain opening 30. The collected washing water flows into the washing drain pump 18 again through the pump water passage 31. Then, the above-described operation is repeatedly performed for a predetermined time.

The washing water in which the detergent is dissolved is circulated as described above. Thereby, the cleaning step of cleaning the object 6 to be cleaned is performed.

In the washing step, controller 40 energizes heater 36 provided in washing tub 3 to heat the washing water to a predetermined temperature while circulating the washing water.

Further, dishwasher 1 according to embodiment 1 includes washing water introduction unit 70 in side walls 3e and 3f on both sides of washing tub 3. As described above, the washing water introduction portion 70 is provided so as to be inclined rearward and downward (see fig. 10), and is also inclined downward from the inner side surfaces of the side walls 3e and 3f toward the main tray 20 (see fig. 4). Thus, during the washing process, the washing water splashed on the inner surfaces of side walls 3e and 3f on both sides of washing tub 3 is introduced into main tray 20 along the inclination of washing water introduction unit 70. The introduced washing water flows along the inclination of the main tray 20, passes through the tray outlet 20b (see fig. 7), and flows down to the inner bottom 3d of the washing tub 3. This suppresses the inflow of washing water during washing into the gap between main tray 20 and the wall surface of washing tub 3. As a result, the adhesion of dirt and residue contained in the washing water to the peripheral edge of the main tray 20 is suppressed.

Since there is no washing water flowing to the portion other than the main tray 20, a substantially constant amount of washing water flows to the main tray 20. Thus, the dirt and residue falling on the main tray 20 flows toward the tray outlet 20b of the main tray 20 along the stable flow of the washing water. Therefore, the residue and dirt do not adhere to and remain on the main tray 20. As a result, the main tray 20 can be kept clean, and the generation of unpleasant odor can be greatly suppressed.

Further, by stabilizing the amount of washing water flowing through the main tray 20, the water potential for washing away the residue and dirt is maintained constant. Therefore, the inclination angle of the main tray 20 with respect to the horizontal can be reduced. This can reduce the space in the height direction required for disposing the main tray 20. Therefore, the cleaning space 5 can be increased. As a result, tableware, cooking containers, and the like having a large size can be efficiently stored in the cleaning space 5.

After washing, washing water introduction unit 70 similarly guides washing water flowing down along the inner surfaces of left and right side walls 3e and 3f of washing tub 3 onto main tray 20 along a surface inclined downward into washing space 5. Therefore, water droplets and residues do not adhere to and remain on the peripheral edge of the main tray 20. This prevents water droplets and residues from falling onto the floor surface from the periphery of the main tray 20 when the main tray 20 is pulled out together with the door 4.

Here, in order to compare the flow of the washing water in the dishwasher 1 according to embodiment 1, the flow of the washing water in the case of the dishwasher having no washing water introduction portion 70 will be described.

First, in the case of a dishwasher having no washing water introduction part 70, there are two flows of washing water for washing the objects 6. The 1 st flow of the washing water is a flow toward the inner bottom 3d of the washing tub 3 via the main tray 20. The second flow of the washing water is a flow directly toward the inner bottom 3d of the washing tub 3 not through the main tray 20 but through the gaps between the peripheral edge of the main tray 20 and the left and right side walls 3e and 3f of the washing tub 3. That is, the 2 nd flow of the washing water flows through the gap between the peripheral edge of the main tray 20 and the left and right side walls 3e and 3f of the washing tub 3. In this case, water droplets and residues tend to adhere to the peripheral edge of the main tray 20 during the washing process. Therefore, when the door 4 is pulled out after cleaning, there is a possibility that the attached water droplets and residues may fall down to the floor surface from the peripheral edge of the main tray 20.

In addition, since the 2 nd flow of the washing water does not flow on the main tray 20, the amount of the washing water flowing on the main tray 20 is reduced. This weakens the flow of the washing water for washing the dirt and residue falling on the main tray 20. Therefore, the tilt angle of the main tray 20 toward the rear with respect to the horizontal needs to be increased. That is, a space in the height direction required for setting the main tray 20 having a large inclination angle is additionally required. As a result, the sizes, the number, and the like of the dishes and the cooking containers that can be accommodated in the cleaning space 5 are restricted. Therefore, in the dish washing machine 1 according to embodiment 1, the washing water introduction unit 70 is provided, so that the washing space 5 is prevented from being restricted by the falling of water droplets and residues.

As described above, the dishwasher 1 according to embodiment 1 can efficiently circulate the washing water to wash the objects 6 to be washed during the operation of the washing step.

After the washing step is performed for a predetermined time by the above-described operation, the control part 40 performs the rinsing step.

In the rinsing step, first, the controller 40 drives the wash drain pump 18. Thereby, the washing water and the like containing the dirt washed off from the object 6 to be washed are discharged to the outside of the dishwasher 1.

Subsequently, controller 40 drives water supply valve 29 again to open water supply valve 29, and supplies washing water into washing tub 3. At this time, as in the cleaning step, cleaning water is again injected from injection holes 10a of lower cleaning nozzle 10 and injection holes 11a of upper cleaning nozzle 11. Thereby, the object 6 to be cleaned, which is soiled with the detergent, the residue, and the like, is rinsed.

In addition, the flow of the washing water inside the washing tub 3 in the rinsing step is the same as that in the washing step. Therefore, although not specifically described, the function of the cleaning water introduction part 70 is also the same as that in the cleaning step.

After the first rinsing step, for example, is completed by the above operation, the controller 40 drives the wash drain pump 18 to discharge the wash water to the outside of the dishwasher 1 again. Then, the control unit 40 continuously repeats the rinsing step a plurality of times (for example, twice or so) according to the set conditions.

Then, after the plurality of rinsing steps are finished, the control part 40 performs the heating rinsing step. Specifically, in the heated rinsing step, the heater 36 heats the washing water to a predetermined temperature (for example, about 60 ℃), and the heated rinsing step is performed in the same operation as the above-described rinsing step.

Next, when the heating rinsing step is finished, the control unit 40 starts the drying step.

In the drying step, first, the control unit 40 drives the fan 33. The outside air is blown into washing tub 3 from air blowing port 35 through air blowing path 34 by the rotation of fan 33. The air sent into cleaning tank 3 is heated by heater 36 provided downstream of air blowing port 35. The heated air circulates through cleaning tank 3 to dry object 6 to be cleaned. The dried air is discharged from the air outlet 37 to the outside of the dish washing machine 1. Thereby, the drying step is completed.

Next, when the drying step is finished, the control unit 40 ends the series of operations of the dishwasher 1. Then, the control unit 40 notifies the user of the end of the operation through a notification unit such as a buzzer.

When the operation of the dishwasher 1 is finished, the user pulls out the door 4 forward. Thereby, the lower dish basket 7 connected to the door body 4 is pulled out. Then, the user takes out the washed object 6, which has finished the washing and drying, from the lower dish basket 7.

Subsequently, the user pulls out the upper dish basket 8 from the washing tub 3 and takes out the objects to be washed 6.

After the object 6 is completely taken out, the user pushes the door 4 backward, and the door 4 closes the front opening 2 of the cleaning tank 3.

As described above, the series of washing operations of dishwasher 1 according to embodiment 1 are executed.

When the dishwasher 1 performs a series of washing operations and then attempts to remove the residue and the like collected in the drain strainer 50, the user takes out the drain strainer 50 from the washing tub 3 based on the steps described in fig. 8A to 9B. Then, the residue and the like filtered by the drain strainer 50 are removed from the drain strainer 50, and the drain strainer 50 is attached to the drain port 30 again. This enables the drain filter 50 to be efficiently cleaned.

As described above, the dish washing machine 1 of embodiment 1 includes: a cleaning tank 3 having a front surface opening 2; a door 4 that covers front surface opening 2 of cleaning tub 3 and can be pulled out; and a cleaning space 5 formed by cleaning tank 3 and door 4. The dish washing machine 1 further comprises: a lower dish basket 7 housed in the washing space 5; a lower washing nozzle 10 for washing the objects 6 stored in the lower dish basket 7; and a main tray 20 and an auxiliary tray 21, the main tray 20 and the auxiliary tray 21 being drawn out together with the door body 4. The main tray 20 is provided below the lower dish basket 7 in the washing space 5, and the auxiliary tray 21 is provided outside the washing space 5 (outside the washing space) below the main tray 20.

In general, water droplets and the like remain on the object 6 to be cleaned, the inside of the cleaning tank 3, the back surface of the main tray 20, and the like during a period from the cleaning step to the end of the drying step. Therefore, when the door 4 is pulled out with water droplets and the like remaining, the water droplets and the like adhering to the rear surface of the main tray 20 may fall to the floor or the like.

Thus, in the dish washing machine 1 according to embodiment 1, the auxiliary tray 21 is used to receive the water droplets falling from the main tray 20. This can prevent water droplets from the main tray 20 from falling onto the floor surface. In addition, only water droplets from which dirt has been removed at the main tray 20 fall on the auxiliary tray 21. Therefore, dirt generated from the residue and the like can be prevented from accumulating in the auxiliary tray 21. As a result, not only the auxiliary tray 21 but also the environment in the space for accommodating the auxiliary tray 21 can be kept clean, and a sanitary dish washing machine 1 can be provided.

In the dish washing machine 1 according to embodiment 1, the width dimension in the left-right direction of the auxiliary tray 21 is larger than the width dimension in the left-right direction of the main tray 20. Thus, when the door 4 is pulled out, the water droplets falling from the main tray 20 can be reliably received by the auxiliary tray 21. As a result, the water droplets can be prevented from falling from the main tray 20 to the ground.

In the dishwasher 1 according to embodiment 1, the lower dish basket 7 is configured to be able to be pulled out forward together with the door 4. Thus, the user can pull out the lower cutlery basket 7 forward by simply pulling out the door 4. Therefore, the user can place the objects to be washed 6 in the lower dish basket 7 without pulling out the lower dish basket 7 separately.

In the dish washing machine 1 according to embodiment 1, the main tray 20 and the auxiliary tray 21 are detachably provided. Thus, the user can remove the main tray 20 and the auxiliary tray 21 and wash them as a whole. As a result, the main tray 20 and the auxiliary tray 21 can be kept sanitary.

In the dish washing machine 1 according to embodiment 1, the interval between the main tray 20 and the auxiliary tray 21 when the door 4 is pulled out is set to be at least 3cm or more, and may be set to be 5cm or more. This allows the user to easily put his or her hand or the like into the gap between the main tray 20 and the auxiliary tray 21 when pulling out the door 4. Therefore, the lower surface of the main tray 20, the upper surface of the auxiliary tray 21, and the like can be easily cleaned without detaching the main tray 20. As a result, the main tray 20 and the auxiliary tray 21 can be kept sanitary.

In the dish washing machine 1 according to embodiment 1, the auxiliary tray 21 is formed of two trays, i.e., a 1 st auxiliary tray 21a and a 2 nd auxiliary tray 21b, which can be stacked and stored. Thus, when the door 4 is closed, the area of the auxiliary tray 21 in the horizontal direction can be reduced to, for example, about half. As a result, a large space for installing the drain port 30, the washing drain pump 18, and the like can be secured.

In dishwasher 1 according to embodiment 1, when door 4 covers front opening 2 of washing tub 3, first auxiliary tray 21a and second auxiliary tray 21b are housed so as to be overlapped in the vertical direction, and when door 4 is pulled out, first auxiliary tray 21a and second auxiliary tray 21b are spread in the pull-out direction. This eliminates the need to fold and store the auxiliary tray 21, and eliminates the need to bend and store the auxiliary tray 21. Therefore, a large space for providing the drain port 30, the washing drain pump 18, and the like can be ensured. As a result, a small-sized dish washing machine or a dish washing machine having a large washing space can be provided.

In addition, in the dishwasher 1 according to embodiment 1, when the door 4 is pulled out and the auxiliary tray 21 is expanded in the pull-out direction, an overlap portion 21g is formed between the 1 st auxiliary tray 21a and the 2 nd auxiliary tray 21 b. Thus, even if the door 4 is pulled out forward to the limit of the slide rail 60, the 2 nd auxiliary tray 21b can be prevented from becoming unstable. Specifically, the 2 nd auxiliary tray 21b can be prevented from being disposed obliquely, and the 2 nd auxiliary tray 21b can be prevented from being detached. Therefore, the 2 nd auxiliary tray 21b and the main tray 20 can be prevented from being displaced when they are stacked. This makes it possible to reliably receive the washing water falling from the main tray 20 by the 1 st auxiliary tray 21a, and prevent the washing water from falling to the floor.

In dishwasher 1 according to embodiment 1, when door 4 is pulled out and auxiliary tray 21 is expanded in the pull-out direction, catch portion 21h on the rear side of second auxiliary tray 21b abuts against stopper portion 3b provided on front surface 3a of washing tub 3, and is restricted to a position rearward of front surface 3a of washing tub 3. This prevents the 2 nd auxiliary tray 21b from falling off forward from the cleaning tank 3. The rear end of the 2 nd auxiliary tray 21b is limited not to be exposed forward of the front surface 3a of the cleaning tank 3. This allows the auxiliary tray 21 to receive washing water falling from the lower basket 7 and the upper basket 8, thereby more reliably preventing the washing water from falling to the floor.

In the dish washing machine 1 according to embodiment 1, the upper surface of the bottom of the concave main tray 20 is formed or arranged to be inclined downward toward the rear. The rear portion of the main tray 20 is provided with a tray outlet 20b that penetrates the upper surface and the lower surface (back surface) of the bottom portion of the main tray 20. Thus, during or after the washing, the washing water or water droplets falling onto the main tray 20 can be reliably guided (returned) into the washing tub 3 by the inclination of the main tray 20 and the tray outlet 20 b. Therefore, the circulation efficiency of the washing water is improved during the washing process, and thus the washing performance of the dish washing machine 1 is improved. On the other hand, after the washing is completed, the washing water or water droplets dropped onto main tray 20 can be quickly moved from main tray 20 into washing tub 3. This prevents the washing water and water droplets from falling to the floor surface when the door 4 is pulled out.

In dishwasher 1 according to embodiment 1, when door 4 is completely pulled out, tray outlet 20b of main tray 20 is disposed rearward of front surface 3a of washing tub 3. Thus, when door 4 is completely pulled out, the washing water and water droplets dropped onto main tray 20 can be more reliably dropped and stored in washing tub 3. That is, regardless of the position of the main tray 20 pulled out together with the door 4, the washing water or water droplets falling onto the main tray 20 can be reliably moved into the washing tub 3 by the tray outlet 20 b. This prevents the washing water falling from the dish basket from falling to the floor.

The dish washing machine 1 according to embodiment 1 includes a tray strainer 41, and the tray strainer 41 is disposed at the tray outlet port 20b of the main tray 20 and collects the residue contained in the washing water. With this configuration, the tray filter 41 is pulled out forward together with the door body 4. This allows the user to easily dispose of (remove) the residue collected by the tray filter 41. Further, tray filter 41 is provided on the upstream side of the flow of the washing water with respect to drain filter 50 located at the lowermost portion of washing tub 3. This reduces the amount of residue deposited on the drain strainer 50, which is difficult to dispose of the residue. As a result, the labor and time required for the user to dispose of the residue can be reduced.

In addition, main tray 20 of dishwasher 1 according to embodiment 1 includes tray roller 23, and tray roller 23 supports the rear side of main tray 20 on tray rail 24 while rolling with respect to washing tub 3. Thus, the main tray 20 cantilevered to the door 4 is stably supported on the tray rail 24 by the rear tray roller 23. Therefore, the main tray 20 can be smoothly moved forward and backward. Further, the tray rollers 23 rolling on the tray rails 24 can effectively suppress vibration of the main tray 20 that is likely to occur when the main tray is supported by a cantilever when the main tray is drawn out forward together with the door body 4. As a result, it is possible to suppress the scattering of water droplets adhering to the main tray 20, which are likely to occur due to vibration, to the surroundings. Further, deformation of the main tray 20 due to the load of the washing water falling onto the main tray 20 during the washing process can be suppressed. This prevents the main tray 20 from being immersed in the washing water flowing into the inner bottom 3d of the washing tub 3 when the rear surface of the main tray 20 is deformed.

Further, dishwasher 1 according to embodiment 1 includes washing water introduction unit 70, and washing water introduction unit 70 is disposed on the inner surfaces of left and right side walls 3e and 3f of washing tub 3 and introduces washing water into main tray 20. With this configuration, during washing, the washing water splashed on the inner surfaces of left and right side walls 3e and 3f of washing tub 3 is introduced into main tray 20 through washing water introduction unit 70. The introduced washing water flows down toward the inner bottom 3d of the washing tub 3 through the tray outlet 20 b. This prevents washing water containing dirt and residue from flowing into the gap between main tray 20 and the wall surface of washing tub 3. Therefore, the adhesion of dirt and residue to the peripheral edge of the main tray 20 can be suppressed. In addition, the washing water substantially flows on the main tray 20. Thereby, the washing water flows on the main tray 20 in a stable and substantially constant amount. Therefore, it is possible to prevent the adhesion of residue and dirt to the main tray 20, which are likely to occur due to the flow of an uneven amount of washing water. After washing, the washing water falling down along the inner surfaces of the left and right side walls 3e and 3f of the washing tub 3 is guided to the main tray 20 by the washing water introduction part 70, as in the washing process. This can prevent water droplets and residues from adhering to the peripheral edge of the main tray 20. As a result, it is possible to more reliably prevent water droplets and residues from falling onto the floor surface.

In addition, the washing water inlet 70 of the dishwasher 1 according to embodiment 1 is provided above the main tray 20 so as to cover the peripheral edge of the main tray 20. Thus, the washing water can be reliably introduced into the main tray 20 during the washing process. Therefore, the washing water does not flow into the gap between main tray 20 and the wall surface of washing tub 3. As a result, it is possible to prevent the residue and dirt contained in the washing water from adhering to the peripheral edge of the main tray 20.

The washing water introduction portion 70 of the dishwasher 1 according to embodiment 1 is provided above the tray rail 24 so as to cover the tray rail 24 on which the main tray 20 moves. This can prevent the adhesion of the residue and dirt to the tray rail 24. Therefore, the movement of the main tray 20 in the front-rear direction can be prevented from being hindered.

Washing water introduction unit 70 of dishwasher 1 according to embodiment 1 is provided to be inclined downward toward the rear of washing tub 3. Thus, during the washing process, the washing water splashed on the inner surfaces of the left and right side walls 3e and 3f of the washing tub 3 is intensively introduced into the rear portion of the main tray 20 including the tray outlet 20b and the tray filter 41. Therefore, a large amount of cleaning water can be dropped to the inner bottom 3d of the cleaning tank 3. This can prevent residue and dirt from remaining on the upper surface of the main tray 20. Furthermore, it is possible to suppress the water droplets, residues, and dirt from remaining on the surface of the washing water introduction portion 70 after washing.

In addition, washing water introduction unit 70 of dishwasher 1 according to embodiment 1 is provided to be inclined downward toward the inside of washing tub 3. This enables the wash water splashed on the inner surfaces of left and right side walls 3e and 3f of wash tub 3 to be more reliably guided to main tray 20 during the washing process. Furthermore, it is possible to suppress the water droplets, residues, and dirt from remaining on the surface of the washing water introduction portion 70 after washing.

In embodiment 1, the configuration in which the lower water passage 12 and the main tray 20 are provided independently of each other has been described as an example, but the present invention is not limited to this. For example, the lower water guide passage 12 and the main tray 20 may be integrally formed, and the lower washing nozzle 10 may be provided above the lower water guide passage 12. Thus, the shape of the lower strip 7a of the lower dish basket 7 does not need to be deformed into, for example, a convex shape so as to avoid the shape of the lower water passage 12 (see fig. 9A). As a result, the limitation (amount, shape, etc.) on the placement of the objects to be washed 6 on the lower dish basket 7 can be reduced.

In embodiment 1, the washing water introduction unit 70 is provided on the left and right side walls 3e and 3f of the washing tub 3, but the present invention is not limited to this configuration. For example, a similar washing water introduction portion may be provided on the inner surface of door 4 (the surface facing washing tub 3). This makes it possible to more reliably introduce the wash water flowing down along the inner surface of the door 4 into the main tray 20.

In embodiment 1, the rear ribbon portion 81 is made of a ribbon, but the present invention is not limited to this. For example, the rear bar part 81 may be formed in a planar shape such as a metal plate of stainless steel or a resin plate of PP. Thereby obtaining the same effect.

(embodiment mode 2)

Next, a dishwasher according to embodiment 2 of the present invention will be described with reference to fig. 11A and 11B.

Hereinafter, the difference between the structure and the operation of the dishwasher of embodiment 1 will be mainly described. Therefore, the same components as those in embodiment 1 are denoted by the same reference numerals, and detailed description of the structure and operation thereof is omitted.

Fig. 11A is a perspective view of the lower dish basket 7 of the dish washing machine according to embodiment 2. Fig. 11B is a perspective view of the dishwasher according to embodiment 2 in a state in which the rear strip 81 of the lower dish basket 7 is rotated rearward.

That is, as shown in fig. 11A and 11B, the lower cutlery basket 7 of embodiment 2 is different from embodiment 1 in that the rear linear body 81 provided at least in part of the rear linear body 79 is configured to be rotatable rearward.

As shown in fig. 11A, rear strip 81 of lower dish basket 7 is disposed upright on lower dish basket 7, and is held by holding members 82 disposed at the rear of lower dish basket 7 and below in the right and left directions so as not to rotate rearward during washing.

As described above, in the dishwasher 1 according to embodiment 2, even when the objects to be washed 6 are placed on the rear side in the lower dish basket 7, the rear rack portion 81 can be rotated to the rear side where the objects to be washed 6 are not placed. Thus, a rear space 80 indicated by a two-dot chain line in fig. 11B is formed at the position of the rear linear body 79 of the lower dish basket 7. Therefore, even if the user rotates the rear linear body 81, the rear linear body 81 does not contact the objects to be washed 6 placed on the lower dish basket 7. That is, the user can rotate the rear bar body 81 rearward without paying attention to the presence or absence of the object 6 to be washed. Further, the user can easily take out drain filter 50 from washing tub 3 of dishwasher 1 through rear space 80. This provides the same effect as that of the lower dish basket of embodiment 1.

(embodiment mode 3)

Next, a dishwasher according to embodiment 3 of the present invention will be described with reference to fig. 12A and 12B.

Hereinafter, the difference between the structure and the operation of the dishwasher of embodiments 1 and 2 will be mainly described. Therefore, the same components as those in embodiments 1 and 2 are denoted by the same reference numerals, and detailed description of the structure and operation thereof is omitted.

Fig. 12A is a perspective view of the lower dish basket 7 of the dish washing machine according to embodiment 3. Fig. 12B is a perspective view of the lower dish basket 7 of the dishwasher according to embodiment 3 in a state in which the rear strip 81 slides downward.

That is, as shown in fig. 12A and 12B, the lower cutlery basket 7 of embodiment 3 is different from embodiments 1 and 2 in that the rear strip portion 81 provided at least in part of the rear strip portion 79 is configured to be slidable in the vertical direction along the groove 82A of the upright left and right holding member 82.

The left and right holding members 82 hold the rear bar portion 81 during cleaning or the like so as to prevent the rear bar portion 81 from moving downward due to its own weight or the like when the rear bar portion 81 is moved to the uppermost position.

When the user removes the drain strainer 50, the rear strip 81 of the lower dish basket 7 slides along the groove 82a of the holding member 82 and moves to the lowermost position. Thus, a rear space 80 indicated by a two-dot chain line in fig. 12B is formed at the position of the rear linear body 79 of the lower dish basket 7.

As described above, in the dishwasher 1 according to embodiment 3, even when the objects to be washed 6 are placed on the rear side in the lower dish basket 7, the rear rack portion 81 can be slid in the vertical direction in which the objects to be washed 6 are not placed. Therefore, even if the user slides the rear strip body 81, the rear strip body 81 does not come into contact with the objects to be washed 6 placed on the lower dish basket 7. This allows the user to slide the rear bar part 81 without paying attention to the presence of the object 6 to be washed. Further, the user can easily take out drain filter 50 from washing tub 3 of dishwasher 1 through rear space 80.

Further, even when the user unintentionally moves lower dish basket 7 rearward, rear strip 81 does not contact rear wall 3g on the rear side of washing tub 3. Therefore, the user can move the lower dish basket 7 rearward without having to worry about the position of the rear bar portion 81.

In embodiment 3, the case where the rear bar part 81 slides in the vertical direction is described as an example, but the present invention is not limited thereto. For example, the rear linear body 81 may be slid in the left-right direction or the oblique direction to secure the rear space 80. Thereby obtaining the same effect.

(embodiment mode 4)

Next, a dishwasher according to embodiment 4 of the present invention will be described with reference to fig. 13A and 13B.

In addition, differences from the structures and operations of embodiments 1, 2, and 3 will be mainly described below. Therefore, the same components as those in embodiments 1, 2, and 3 are denoted by the same reference numerals, and detailed description of the structure and operation thereof is omitted.

Fig. 13A is a perspective view of the lower dish basket 7 of the dish washing machine according to embodiment 4. Fig. 13B is a perspective view of the dishwasher according to embodiment 4 with rear strip 81 of lower dish basket 7 removed.

That is, as shown in fig. 13A and 13B, the lower dish basket 7 according to embodiment 4 is different from the above-described embodiments in that the rear linear body 81 provided at least in part of the rear linear body 79 is configured to be detachable from the lower dish basket 7.

The rear linear body 81 is held so as to be able to stand during washing by a holding member 82, and the holding member 82 is attached to the rear linear body 79 of the lower dish basket 7 and provided at the lower left and right.

Further, by detaching rear linear body 81 of lower dish basket 7 from lower dish basket 7, rear space 80 indicated by a two-dot chain line in fig. 13B is formed at the position of rear linear body 79 of lower dish basket 7.

As described above, in the dishwasher 1 according to embodiment 4, even when the objects to be washed 6 are placed on the rear side in the lower dish basket 7, the rear rack portion 81 can be moved, for example, upward without placing the objects to be washed 6, and can be detached from the lower dish basket 7. Therefore, when the user removes the rear rack part 81, the rear rack part 81 does not come into contact with the objects to be washed 6 placed on the lower dish basket 7. Thus, the user can easily take out drain filter 50 from washing tub 3 of dishwasher 1 through rear space 80 without paying attention to the presence or absence of object to be washed 6.

Further, even when the user unintentionally moves lower dish basket 7 rearward, rear strip portion 81 does not contact rear wall 3g of washing tub 3. Therefore, the user can move the lower dish basket 7 rearward without having to worry about the position of the rear bar portion 81.

As described above, the dish washing machine of the present invention includes: a cleaning tank having a front surface opening; a door body covering the front surface opening of the cleaning tank; a cleaning space formed by a cleaning tank and a door body; and a dish basket which is accommodated below the washing space and can be pulled out forward. The dish washing machine of the present invention further comprises: a washing unit for washing the objects stored in the dish basket; and a filter which is arranged at the bottom of the cleaning tank and is used for collecting attachments of the cleaned objects. The rear strip portion of the dish basket at least partially has a movable rear strip portion, and the rear strip portion is positioned in front of the filter when the dish basket is pulled out, and forms a rear space portion formed by the movement of the rear strip portion.

According to this configuration, when the user takes out the filter after washing to remove the residue such as food collected in the filter, the rear space portion formed by the movement of the rear bar portion of the dish basket can be secured. This allows the user to easily insert a hand into the filter through the rear space portion. Further, when the filter is taken out, the filter is less likely to come into contact with the moved rear stripe portion. Therefore, the user can easily take out the filter from the dish washing machine through the rear space part of the dish basket. Thus, the dish washing machine with excellent maintainability can be provided.

In the dish washing machine according to the present invention, it is desirable that the rear strip body is rotatable.

With this configuration, the user can easily form the rear space portion simply by rotating the rear linear body portion.

In the dish washing machine according to the present invention, it is desirable that the rear strip body is rotatable forward of the dish basket.

According to this configuration, even if the dish basket is moved backward, the rear strip portion does not come into contact with the washing tub, the washing unit, and the like. Thus, the user can move the dish basket backward at any time without having to worry about the position of the bar body.

In the dish washing machine according to the present invention, it is desirable that the rear strip body is rotatable rearward of the dish basket.

According to this configuration, even when the objects to be washed are placed on the rear side of the dish basket, the rear rack can be rotated in the direction in which the objects to be washed are not placed. Therefore, the rear strip body does not contact the object to be cleaned. Thus, the user can easily take out the filter from the dish washing machine through the rear space portion formed by rotating the rear strip body portion without paying attention to the presence or absence of the objects to be washed.

In the dish washing machine of the present invention, it is desirable that the rear strip body is slidable.

According to this configuration, even when the objects to be washed are placed on the rear side of the dish basket, the rear linear body portion can be slid in the vertical direction on which the objects to be washed are not placed. Therefore, the rear strip body does not contact the object to be cleaned. Thus, the user can easily take out the filter from the dishwasher through the rear space portion without paying attention to the presence of the objects to be washed. Further, when the dish basket is moved backward during storage or the like, the rear strip portion does not come into contact with the washing tub, the washing portion, or the like. Therefore, the user can move the dish basket backward at any time without having to worry about the position and state of the rear bar body.

In the dish washing machine of the present invention, it is desirable that the rear strip portion is detachable from the dish basket.

According to this configuration, even when the objects to be washed are placed on the rear side of the dish basket, the rear linear body portion can be detached from the direction in which the objects to be washed are not placed. Therefore, the rear strip body does not contact the object to be cleaned. Thus, the user can easily take out the filter from the dishwasher through the rear space portion without paying attention to the presence of the objects to be washed. Further, when the dish basket is moved backward during storage or the like, the rear strip portion does not come into contact with the washing tub, the washing portion, or the like. Therefore, the user can move the dish basket backward at any time without having to worry about the position and state of the rear bar body.

In the dish washing machine according to the present invention, it is desirable that the door is configured to be able to be pulled out forward, and the dish washing machine includes a tray that is pulled out together with the door. The tray is arranged outside the washing space below the dish basket and is accommodated in front of the filter.

According to this configuration, the tray is stored to a position in front of the filter that does not interfere with the arrangement of the filter. Therefore, even if the filter is provided at the rear of the bottom of the washing tub, the filter can be easily taken out from the dish washing machine. Thus, the dish washing machine with excellent maintainability can be provided.

Claims (7)

1. A dish washing machine, wherein the dish washing machine comprises:

a cleaning tank having a front surface opening;

a door body that covers the front surface opening of the cleaning tank;

a cleaning space formed by the cleaning tank and the door body;

a dish basket which is accommodated below the washing space and can be pulled out forward;

a washing unit for washing the objects stored in the dish basket; and

a filter which is arranged at the bottom of the washing tank and is used for collecting the attachment of the washed objects, wherein the rear strip body of the tableware basket at least partially comprises a movable rear strip body part,

the rear bar portion is positioned in front of the filter when the dish basket is drawn out, and forms a rear space portion formed by movement of the rear bar portion.

2. The dishwasher of claim 1, wherein the rear rack portion is configured to be rotatable.

3. The dishwasher of claim 2, wherein the rear basket portion is configured to be rotatable forward of the dish basket.

4. The dishwasher of claim 2, wherein the rear rack portion is configured to be rotatable rearward of the dish basket.

5. The dishwasher of claim 1, wherein the rear rack portion is configured to slide.

6. The dishwasher of claim 1 or 5, wherein the rear basket portion is configured to be detachable from the dish basket.

7. The dishwasher according to any one of claims 1 to 6, wherein the door body is configured to be able to be pulled out in the forward direction, the dishwasher including a tray that is pulled out together with the door body,

the tray is disposed outside the washing space below the dish basket and is received in front of the filter.

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