washing machine

Abstract

To provide a washer capable of reducing splash of water from an end part in an extension direction of a protrusion part to outside of the device.SOLUTION: A dishwasher 100 comprises: a main body part 1 comprising a washing chamber 1B storing tableware D, and an opening 1C through which the tableware is put into and taken out of the washing chamber; and a door part 15 provided on outside of the opening and capable of opening / closing the opening. The main body part comprises: a pair of facing parts 16, 16 which is provided along a vertical direction along an edge part of the opening so as to face the door part in a closed state; and a protrusion part 17 which extends in a substantially horizontal direction so as to protrude an outside OS of the opening along a lower end of the door part in the closed state. The protrusion part has a pair of facing areas facing the pair of facing parts on both end parts in the extension direction. The protrusion part blocks at least a part of a communication part C communicated with at least one of the facing areas from the washing chamber.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a washing machine for washing items such as tableware. [Background technology]

[0002] There is known a washing machine (dishwasher) that washes dishes stored in a washing chamber by spraying washing water stored in a washing tank onto the dishes, and rinses the dishes by spraying rinsing water stored in a rinsing tank onto the dishes. For example, Patent Document 1 discloses a washing machine in which an opening that opens the inside of the washing chamber to the outside is formed in the main body, and a door that can open and close the opening is provided. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-220601 Summary of the Invention [Problem to be solved by the invention]

[0004] In such a washing machine, a door section is disposed outside the opening, and a facing section is provided at the edge of the opening, facing the door section. The washing machine is also provided with a structure for reducing water leakage from between the door section and the facing section to the outside of the washing machine. However, water may enter the facing section, even if only in small amounts, or water droplets may form on the facing section. Therefore, a structure for receiving this water is required below the facing section, which extends vertically. For this reason, the main body section, which forms the washing chamber, is provided with a protruding section that protrudes toward the door section at the lower end of the door section and extends horizontally from one facing section to the other.

[0005] However, while such a protruding portion can catch water that drips down the opposing portion, it also makes it easier for water to seep in from the cleaning chamber side during washing or rinsing, and due to its structure of receiving the opposing portion, water can sometimes splash out outside the machine from the end of the protruding portion in the extension direction, which is the part that communicates with the outside of the machine.

[0006] Therefore, an object of the present invention is to provide a cleaning machine that can reduce water splashing out of the machine from the end of the extension portion in the extension direction. [Means for solving the problem]

[0007] The cleaning machine of the present invention comprises a main body having a cleaning chamber for accommodating the items to be cleaned and an opening for loading and unloading the items to be cleaned into the cleaning chamber, and a door portion arranged outside the opening and capable of opening and closing the opening. The main body has a pair of opposing portions arranged vertically along the edge of the opening so as to face the door portion in a closed state, and a protruding portion extending approximately horizontally so as to protrude outside the opening along the lower end of the door portion in a closed state. The protruding portion has a pair of opposing areas formed at both ends in the extension direction that face the pair of opposing portions, and the protruding portion is provided with a plate-shaped blocking plate that blocks at least a portion of the connecting portion that connects the cleaning chamber to at least one of the pair of opposing areas.

[0008] In a washer having this configuration, a plate-shaped blocking plate is provided to block at least a portion of the communication portion that connects the cleaning chamber to the facing area, thereby preventing water from entering the facing area from the cleaning chamber, and thereby reducing the amount of water that has entered the facing area from splashing out from the end of the protruding portion in the extension direction.

[0009] In the washer of the present invention, a gap may be formed between the bottom of the overhanging portion and the lower end of the closing plate. With this configuration, water that flows along the opposing portion and collects at the lower end of the overhanging portion can be guided toward the cleaning chamber, thereby preventing water from accumulating at the lower end of the opposing portion. Furthermore, in such a washer, high-temperature water is sprayed during cleaning, increasing the pressure in the cleaning chamber. However, with this configuration, even when the above-mentioned closing plate is provided, the pressure in the cleaning chamber can be released to the outside through the gap from the portion of the overhanging portion that communicates with the outside of the main body.

[0010] The cleaning machine of the present invention may further include a nozzle disposed in the cleaning chamber that sprays water while rotating in one direction, and the blocking plate may be provided in a facing region on the side of the extension of the protruding portion that coincides with the rotation direction of the nozzle. The rotation direction here refers to the rotation direction of the nozzle in the region adjacent to the protruding portion, and refers to the rotation direction of the portion where the nozzle rotates along the extension of the protruding portion. In a cleaning machine configured in this manner, water sprayed from the nozzle rotating in one direction is sprayed along the tangential direction of the rotation circle. Therefore, in a protruding portion extending in one direction, water tends to accumulate in the facing region on the side of the direction in which the water is sprayed. In this configuration, the blocking plate is provided on the side of the direction in which the water is sprayed, thereby effectively preventing water sprayed from the nozzle from penetrating the facing region.

[0011] The washer of the present invention further includes a washing tank disposed in a lower region of the washing chamber, and the storage section for storing wash water in the washing tank may be disposed in the lower region so that the direction perpendicular to the extension direction is the longitudinal direction and so that the storage section is biased toward the direction of rotation of the nozzle in the extension direction. In a washer configured in this manner, water sprayed from the nozzle rotating in one direction is scattered along the tangential direction of the rotation circle. Therefore, in the protruding section extending in one direction, water tends to collide with the blocking plate disposed in the direction of water scattering. In this configuration, the storage section of the washing tank is disposed in a state biased toward the direction of water scattering in the lower region of the washing chamber 1B. This allows the storage section of the washing tank to be disposed relatively close to the blocking plate, which is likely to be hit by water sprayed from the nozzle. As a result, water blocked from entering the opposing region by the blocking plate can be efficiently guided to the storage section of the washing tank, preventing water from accumulating in the opposing region. [Effects of the Invention]

[0012] According to the present invention, it is possible to reduce water splashing out of the aircraft from the end of the extension portion in the extension direction. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of a dishwasher according to one embodiment. [Figure 2] FIG. 2 is a diagram showing a schematic configuration of a dishwasher according to one embodiment. [Figure 3] FIG. 3 is a perspective view of a part of the cleaning chamber and cleaning tank as seen from the inside. [Figure 4] FIG. 4 is a plan view of the protruding portion as seen from above. [Figure 5] Fig. 5(A) is a plan view of a nozzle relief portion formed on a rack rail, and Fig. 5(B) is a cross-sectional view of a placement portion and a discharge hole formed on the rack rail. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, a dishwasher (washing machine) 100 according to one embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated explanations will be omitted. For ease of explanation, the front-rear direction, left-right direction, and up-down direction are respectively defined in FIG.

[0015] As shown in Fig. 1, a dishwasher 100 according to one embodiment is an under-counter dishwasher having a door 15 provided at the front of a washing chamber 1B. As shown in Figs. 1 and 2, the dishwasher 100 includes a main body 1, a door 15, a washing tank 20, an upper nozzle 3, a lower nozzle 4, a washing pump 5, a rinsing tank 6, a rinsing pump 7, a detergent supply pump 8, a rinse aid supply pump 9, and a controller 10.

[0016] The main body 1 is formed by including a frame (not shown), a stainless steel exterior panel 11, and an interior panel 2. The exterior panel 11 has a pair of side panels 11A, 11A that form the left and right sides, an upper panel 11B, an upper front panel 11C, a lower front panel 11D, and a rear panel 11E. At least the lower front panel 11D is easily detachable from the frame. Legs 12 are attached to the four corners of the lower part of the main body 1. An operating unit 13 for operating various operations of the dishwasher 100 is provided on the upper front panel 11C.

[0017] The operation unit 13 is a section where the operation mode and various settings are input. In this embodiment, the operation unit 13 is configured with a liquid crystal display screen and tempered glass (electrostatic switch) covering it. The operator can perform various operations by touching the tempered glass covering the liquid crystal display screen. The operation unit 13 may be configured with various buttons and a touch panel, or may be configured with a remote control, operation terminal, etc. that is separate from the main body 1.

[0018] A machine chamber 1A is formed in the lower region of the main body 1, accommodating a washing tank 20, a washing pump 5, a rinsing tank 6, a rinsing pump 7, a detergent supply pump 8, and a rinse aid supply pump 9. A washing chamber 1B is formed in the upper region of the main body 1, accommodating a rack on which dishes (items to be washed) D and the like are set. The washing chamber 1B is the space above the washing tank 20 and is constituted by an interior panel 2. The interior panel 2 mainly has a pair of side panels 2A, 2A, an upper panel 2B, and a rear panel (not shown). Rack rails 23 that support the rack are formed on the inner surfaces of the pair of side panels 2A, 2A. An opening 1C is formed in the main body 1, through which the rack on which dishes D and the like are set is inserted and removed from the washing chamber 1B.

[0019] The door section 15 is disposed on the outside OS of the opening 1C (see FIG. 4). The door section 15 is provided so as to be able to open and close the opening 1C, and when the door section 15 is opened, the cleaning chamber 1B on the inside IS of the opening 1C (see FIG. 4) is exposed to the outside of the main body section 1. The door section 15 is provided so as to be rotatable about a shaft extending in the left-right direction at the lower end of the door section 15 as the rotation axis. An operator can open the cleaning chamber 1B by pushing down a handle 15A provided at the upper end of the door section 15.

[0020] Washing tank 20 is provided below washing chamber 1B. Washing tank 20 has a storage section 22 that stores wash water used to wash dishes D and the like stored in washing chamber 1B. Storage section 22 is formed of side section 20c and bottom section 20a. Washing tank 20 is provided with a wash water detection section 24, a wash water heater 25A, and a wash water temperature sensor 25B.

[0021] The flush water detection unit 24 detects the level of flush water stored in the storage unit 22. The flush water detection unit 24 is, for example, a switch that turns ON when the water level in the storage unit 22 exceeds a constant water level H1 and turns OFF when the water level is equal to or lower than the constant water level H1. The detection results by the flush water detection unit 24 are acquired by the controller 10. If the flush pump 5, which will be described in detail later, sucks in air while it is running, a so-called air entrapment occurs and flush water cannot be sprayed from the upper nozzle 3 and the lower nozzle 4. In one embodiment, the operation of the flush pump 5 is stopped when the flush water detection unit 24 turns OFF during operation, thereby preventing the flush pump 5 from sucking in air.

[0022] Wash water heater 25A heats the wash water stored in reservoir 22 to improve sterilization and cleaning capabilities. Wash water temperature sensor 25B detects the temperature of the wash water stored in reservoir 22. The detection results from wash water temperature sensor 25B are acquired by controller 10. The ON / OFF of wash water heater 25A is controlled by controller 10. For example, wash water heater 25A is controlled by controller 10 so as to maintain the wash water at a predetermined temperature based on the water temperature detected by wash water temperature sensor 25B.

[0023] A circular through-hole 20b is formed in the bottom 20a of the reservoir 22. The through-hole 20b is a circular plate-shaped member with multiple elongated holes formed therein that penetrate in the thickness direction, and is covered by a pump guard 26 that prevents the intrusion of foreign matter. The through-hole 20b is connected to the cleaning pump 5 via a connection part 50. The connection part 50 is formed with a first connection hole 50a connected to the through-hole 20b, a drain hole 50b connected to a drain pipe 28 that discharges water to the outside of the main body 1, and a second connection hole 50c connected to the cleaning pump 5. The connection part 50 may be formed integrally with the cleaning pump 5 as part of a casing that constitutes the cleaning pump 5, or may be provided separately from the cleaning pump 5 as a member that connects the reservoir 22 of the cleaning tank 20 to the cleaning pump 5.

[0024] The flushing tank 20 is provided with an overflow pipe 27 that extends vertically. The overflow pipe 27 allows water that exceeds a predetermined water level in the storage section 22 to flow in from its upper end and drain it outside the cleaning tank 20, thereby regulating the level of flushing water stored in the storage section 22. The lower end of the overflow pipe 27 passes through a burred pump guard 26 that covers the through-hole 20b and is detachably inserted into a drainage hole 50b formed in the connection section 50. By removing the lower end of the overflow pipe 27 from the drainage hole 50b, the flushing water stored in the storage section 22 can be drained via the through-hole 20b and the drainage hole 50b.

[0025] The upper nozzle 3 is provided above the cleaning chamber 1B. The upper nozzle 3 is rotatably mounted on an upper support member 21A provided above the cleaning chamber 1B. The upper nozzle 3 has a nozzle body 30 extending radially from a base end, which is the center of rotation of the rotation axis of the upper nozzle 3, to a tip end. The nozzle body 30 is integrally formed with: a cleaning injection hole 31 for injecting cleaning water stored in the storage section 22 of the cleaning tank 20; a cleaning flow path 32 extending from the rotation center to the cleaning injection hole 31 and through which the cleaning water flows; a rinsing injection hole 33 for injecting rinsing water stored in the rinsing tank 6; and a rinsing flow path 34 extending from the rotation center to the rinsing injection hole 33 and through which the rinsing water flows. The upper nozzle 3 rotates when the flow of cleaning water generated in the cleaning flow path 32 or the flow of rinsing water generated in the rinsing flow path 34 is converted into rotational force. The upper nozzle 3 is connected to an upper cleaning pipe 58 that supplies cleaning water to the cleaning flow path 32 and an upper rinsing pipe 78 that supplies rinsing water to the rinsing flow path 34.

[0026] The lower nozzle 4 is provided below the cleaning chamber 1B. The lower nozzle 4 is rotatably mounted on a lower support member 21B provided below the cleaning chamber 1B. The lower nozzle 4 has a nozzle body 40 extending radially from a base end, which is the center of rotation of the rotation axis of the lower nozzle 4, to a tip end. The nozzle body 40 is integrally formed with a cleaning jet hole 41 for spraying cleaning water stored in the storage section 22 of the cleaning tank 20, a cleaning flow path 42 extending from the rotation center to the cleaning jet hole 41 and through which the cleaning water flows, a rinsing jet hole 43 for spraying rinsing water stored in the rinsing tank 6, and a rinsing flow path 44 extending from the rotation center to the rinsing jet hole 43 and through which the rinsing water flows. The lower nozzle 4 rotates when the flow of cleaning water generated in the cleaning flow path 42 or the flow of rinsing water generated in the rinsing flow path 44 is converted into rotational force. The lower nozzle 4 is connected to a lower cleaning pipe 59 for supplying cleaning water to the cleaning flow path 42 and a lower rinsing pipe 79 for supplying rinsing water to the rinsing flow path 44 .

[0027] The dishes D arranged on the dish rack are sprayed with washing water by the upper nozzle 3 and the lower nozzle 4 in the washing process, and are sprayed with rinsing water by the upper nozzle 3 and the lower nozzle 4 in the rinsing process.

[0028] The wash pump 5 is arranged in the machine room 1A. The wash pump 5 delivers wash water stored in the storage section 22 of the wash tank 20 to the wash chamber 1B, which contains dishes D and the like. The wash pump 5 takes in wash water from the storage section 22 via the connection section 50 and delivers the wash water to the upper nozzle 3 and the lower nozzle 4. An upper wash piping 58 is connected to a first discharge port of the wash pump 5. The upper wash piping 58 is connected to the upper nozzle 3. A lower wash piping 59 is connected to a second discharge port of the wash pump 5. The lower wash piping 59 is connected to the lower nozzle 4.

[0029] The rinsing tank 6 is disposed in the machine room 1A. The rinsing tank 6 stores rinsing water used for rinsing tableware D and the like. Water is supplied to the rinsing tank 6 from an external water source via a water supply pipe 60. A strainer 60A is provided in the water supply pipe 60. A valve 60B is provided in the water supply pipe 60 downstream of the strainer 60A.

[0030] The rinsing tank 6 is provided with a rinsing water detection unit 62, an overflow unit 63, a rinsing water heater 64A, and a rinsing water temperature sensor 64B.

[0031] The rinsing water detection unit 62 is a switch that detects whether the water stored in the rinsing tank 6 is at a constant water level H2. The detection result of the rinsing water detection unit 62 is acquired by the controller 10. The valve 60B is controlled by the controller 10. For example, the controller 10 opens and closes the valve in conjunction with the detection of the constant water level H2 by the rinsing water detection unit 62, and controls the valve 60B so as to maintain a constant level of rinsing water stored in the rinsing tank 6.

[0032] The overflow section 63 discharges water that exceeds the full water level in the rinsing tank 6. The rinsing tank 6 is a sealed tank, and exceeds the full water level, for example, when the valve 60B experiences a closing abnormality. The rinsing water heater 64A heats the rinsing water stored in the rinsing tank 6 to improve sterilization and rinsing capabilities. The rinsing water temperature sensor 64B detects the temperature of the rinsing water. The detection result from the rinsing water temperature sensor 64B is acquired by the controller 10. The ON / OFF of the rinsing water heater 64A is controlled by the controller 10. For example, the rinsing water heater 64A is controlled by the controller 10 to maintain the rinsing water at a predetermined temperature based on the water temperature detected by the rinsing water temperature sensor 64B.

[0033] The rinsing pump 7 sends out rinsing water stored in the rinsing tank 6 to the washing chamber 1B that contains tableware D, etc. The rinsing pump 7 takes in rinsing water from the rinsing tank 6 and sends it out to the upper nozzle 3 and the lower nozzle 4. An upper rinsing pipe 78 and a lower rinsing pipe 79 are connected to the discharge port of the rinsing pump 7 via a rinsing pipe 77. The upper rinsing pipe 78 is connected to the upper nozzle 3. The lower rinsing pipe 79 is connected to the lower nozzle 4.

[0034] The detergent supply pump 8 is disposed in the machine room 1A. The detergent supply pump 8 supplies the detergent stored in the detergent tank 8A to the cleaning chamber 1B via piping 8B. The detergent discharged into the cleaning chamber 1B flows into the storage section 22 and mixes with the cleaning water. The rinse agent supply pump 9 is disposed in the machine room 1A. The rinse agent supply pump 9 supplies the rinse agent stored in the rinse agent tank 9A to the rinsing piping 77 via piping 9B. The rinse agent supplied to the rinsing piping 77 is mixed with the rinsing water and supplied to the cleaning chamber 1B via the upper nozzle 3 and the lower nozzle 4.

[0035] The controller 10 is disposed between the upper panel 11B of the main body 1 and the upper panel 2B that constitutes the washing chamber 1B. The controller 10 controls the overall operation of the dishwasher 100. The controller 10 is a computer system or processor implemented in an integrated circuit. The controller 10 is composed of a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), an input / output interface, etc. Various programs and data are stored in the ROM.

[0036] 1, 3, and 4, the main body 1 of this embodiment has a pair of opposing portions 16, 16 provided vertically along the edge of the opening 1C so as to face the door portion 15 in the closed state, and a protruding portion 17. The opposing portions 16, 16 are formed by a folded portion of the side panel 11A and a folded portion of the side panel 2A, but may be formed only by the folded portion of the side panel 11A or only by the folded portion of the side panel 2A. A seal or labyrinth structure may be formed between the opposing portions 16, 16 and a part of the door portion 15 facing the opposing portions 16, 16 to reduce leakage of steam generated in the cleaning chamber 1B to the outside of the cabinet.

[0037] The overhanging portion 17 overhangs the outer side OS of the opening 1C and extends horizontally to the left and right. The overhanging portion 17 is formed to fit along the lower end of the door portion 15 when the door is closed. The overhanging portion 17 extends from the lower end of one of the pair of opposing portions 16 to the lower end of the other of the pair of opposing portions 16. In other words, the overhanging portion 17 is configured to be able to catch water or the like that falls downward along the pair of opposing portions 16. The overhanging portion 17 has a pair of side ends 17a, 17b, a front end 17c, and a bottom 17d.

[0038] The pair of side ends 17a, 17b are plate-shaped members that are perpendicular to the left-right direction. The pair of side ends 17a, 17b are provided so as to be substantially flush with the outer surfaces of the side panels 11A of the main body 1. The front end 17c is a plate-shaped member that is perpendicular to the front-rear direction. The front end 17c connects the pair of side ends 17a, 17b to each other. The front end 17c is formed integrally with the main body 1 by bending the front end of the cleaning tank 20. The front end 17c is formed so as to be substantially flush with the front surface of the door portion 15 in the closed state. The bottom 17d is a surface that extends horizontally (a surface that is perpendicular to the vertical direction) and is connected to the cleaning tank 20. The bottom 17d may be inclined toward the cleaning tank 20. The portion of the bottom 17d that is formed in front of the pair of opposing portions 16, 16 (opposing area A) is formed wider than the portion that is formed in front of the cleaning tank 20.

[0039] The protruding portion 17 has a pair of opposing areas A, A that face the pair of opposing portions 16, 16 at both ends in the extending direction (left-right direction) of the protruding portion 17. The protruding portion 17 is provided with a plate-shaped blocking plate 18 that blocks a part of a communication portion C that communicates from the cleaning chamber 1B to the pair of opposing areas A, A.

[0040] The closing plate 18 has a main surface 18a and an attachment surface 18b bent from the main surface 18a. The main surface 18a is a surface perpendicular to the left-right direction and blocks a portion of the communication portion C. The attachment surface 18b is a surface perpendicular to the front-rear direction and is attached to the front end portion 17c. The closing plate 18 is attached so that the outer surface of the main surface 18a is in surface contact with the inner surface of the side panel 2A. A gap G is formed between the bottom portion 17d of the protruding portion 17 and the lower end portion 18c of the closing plate 18.

[0041] As shown in FIGS. 3, 5(A), and 5(B), the rack rail 23 of this embodiment is formed by drawing from the side panel 2A. That is, the rack rail 23 is integrally formed on the inner surface of the side panel 2A. The rack rail 23 has a mounting portion 23a on which a rack for storing tableware D is placed, a first drawn portion 23b connecting from the inner surface of the side panel 2A to the mounting portion 23a, and a second drawn portion 23c connecting from the mounting portion 23a to the inner surface of the side panel 2A. The mounting portion 23a has a width in the left-right direction so that a rack can be placed thereon. The first drawn portion 23b is connected to the outer end of the mounting portion 23a in the width direction (left-right direction) above the mounting portion 23a. The second drawn portion 23c is connected to the inner end of the mounting portion 23a in the width direction (left-right direction) below the mounting portion 23a. The second narrowed portion 23c is inclined obliquely from the inside to the outside of the cleaning chamber 1B.

[0042] In this way, by tilting the second narrowed portion 23c of the rack rail 23 obliquely from the inside to the outside, interference with the lower nozzle 4 can be avoided. This allows the installation position of the rack rail 23 in the washing chamber 1B to be lowered to the height of the lower nozzle 4, thereby increasing the height of tableware D that can be placed on the rack rail 23. Furthermore, the second narrowed portion 23c is formed with a nozzle relief portion 23e that prevents interference with the tip of the lower nozzle 4 that rotates during washing and rinsing. The nozzle relief portion 23e is a recess in the second narrowed portion 23c that is recessed from the inside to the outside so as not to interfere with the trajectory C4 of the tip portion of the lower nozzle 4 that rotates during washing and rinsing. This configuration allows the position of the rack rail 23 in the washing chamber 1B to be further lowered. In other words, the nozzle relief portion 23e allows the height of tableware D that can be placed on the rack rail 23 to be further increased.

[0043] The second throttle portion 23c is formed with a discharge hole 23d connected to the rinsing tank 6. The discharge hole 23d is connected to an overflow portion 63 formed in the rinsing tank 6 via a pipe 63A. The discharge hole 23d discharges rinsing water overflowing from the rinsing tank 6 into the cleaning chamber 1B. The discharge hole 23d is provided to discharge water vertically downward. That is, the discharge hole 23d opens vertically downward. With this configuration, it is possible to prevent water from entering the discharge hole 23d during cleaning and flowing back into the rinsing tank 6 without providing a backflow prevention mechanism for the discharge hole 23d, thereby reducing costs.

[0044] Next, the effects of the dishwasher 100 of the above embodiment will be described. The dishwasher 100 of the above embodiment is provided with the plate-shaped blocking plate 18 that blocks at least a part of the communication part C that connects the washing chamber 1B to the facing area A, thereby preventing water from entering the facing area A from the washing chamber 1B. This reduces the amount of water that has entered the facing area A from the washing chamber 1B splashing out from the side ends 17a, 17b in the extension direction of the overhanging part 17.

[0045] In the dishwasher 100 of the above embodiment, a gap G is formed between the bottom 17d of the extension 17 and the lower end 18c of the closing plate 18. This allows water that flows along the opposing portion 16 of the main body 1 and collects at the lower end of the opposing portion 16 of the extension 17 to be guided toward the washing chamber 1B, thereby preventing water from accumulating at the lower end of the opposing portion 16.

[0046] Furthermore, in a configuration in which the overhanging portion 17 is provided along the lower end of the door portion 15, water that falls down the opposing portion 16 of the main body 1 can be caught, but the overhanging portion 17 cannot be installed so as to come into close contact with the rotating door portion 15. Therefore, the overhanging portion 17 has portions that communicate with the outside of the main body 1, for example, at side ends 17a, 17b, which are the ends in the extension direction. In the dishwasher 100, high-temperature water is sprayed during washing, increasing the pressure in the washing chamber 1B, but the pressure can be released to the outside through the portion that communicates with the outside. In the dishwasher 100 of the above embodiment, the gap G is provided, and therefore the pressure can be released to the outside through the gap G and the portion that communicates with the outside.

[0047] 3, in the dishwasher 100 of the above embodiment, water sprayed from the lower nozzle 4, which rotates in one direction, is scattered along the tangential direction of the rotation circle. Therefore, near the protruding portion 17 extending in one direction at the front of the dishwasher 100, water sprayed from the lower nozzle 4 is scattered to the right when viewed from the washing chamber 1B side and to the left when viewed from the front of the dishwasher 100. Therefore, at the protruding portion 17, the water tends to collide with the blocking plate 18 on the side from which it is scattered (the right when viewed from the washing chamber 1B side and the left when viewed from the front of the dishwasher 100).

[0048] In dishwasher 100 of this embodiment, storage section 22 of washing tank 20 is arranged in a lower region of washing chamber 1B so that the longitudinal direction is the front-to-rear direction perpendicular to the left-to-right direction (extension direction of the protruding portion) and so that the storage section 22 is biased toward the rotation direction of lower nozzle 4 in the left-to-right direction. This allows the inner surface of side section 20c connected to bottom 20a of storage section 22 of washing tank 20 to be arranged relatively close to closing plate 18, which is likely to be hit by water sprayed from lower nozzle 4. As a result, water that is blocked by closing plate 18 from entering opposing area A can be efficiently guided to storage section 22 of washing tank 20, preventing water from accumulating in opposing area A. As shown in FIG. 3, washing tank 20 has a shallow recessed portion extending from above and a deep recessed portion recessed downward from the shallow recessed portion. The shallow recessed portion separates the machine chamber 1A from the washing chamber 1B, and receives the water that is sprayed from the upper nozzle 3 and the lower nozzle 4 and falls after washing or rinsing the dishes D, and guides it to the deep recessed portion, while the deep recessed portion stores the washing water that is supplied to the upper nozzle 3 and the lower nozzle 4 by the washing pump 5. The storage section 22 in this embodiment corresponds to the above-mentioned deep recessed portion.

[0049] Although one embodiment has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention.

[0050] In the above embodiment, the dishwasher 100 is described with an example in which both a blocking plate 18 that blocks a portion of the communication portion C leading to the left facing area A and a blocking plate 18 that blocks a portion of the communication portion C leading to the right facing area A are provided. However, this is not limiting. For example, the blocking plate 18 may be provided only in the communication portion C that connects to either the left or right facing area A. Furthermore, for example, the blocking plate 18 may be provided only in the facing area A on the side that corresponds to the rotation direction of the lower nozzle 4 in the extension direction of the overhanging portion 17. For example, as shown in FIG. 3 , when the lower nozzle 4 rotates rightward as viewed from above, the blocking plate 18 may be provided only on the right side as viewed from the washing chamber 1B (the left side as viewed from the front of the dishwasher 100). In other words, the blocking plate 18 may be provided only in the communication portion C that connects to the left facing area A as viewed from the front of the dishwasher 100.

[0051] In dishwasher 100 having such a modified configuration, water sprayed from lower nozzle 4, which rotates in one direction, is scattered along the tangential direction of the rotation circle, so that in overhanging portion 17 extending in one direction, water tends to accumulate in opposing area A on the side in the direction in which the water is scattered (i.e., the right side when viewed from washing chamber 1B, and the left side when viewed from the front of dishwasher 100). In this way, in the modified configuration, blocking plate 18 is provided only on the side in the direction in which the water is scattered, so that water sprayed from lower nozzle 4 can be effectively prevented from penetrating into opposing area A.

[0052] <Other variations> In the above embodiment and modified examples, the rack rail 23 has been described as being formed integrally with the side panels 2A, 2A by extrusion processing, but the rack rail 23 may also be formed by attaching other components to the inner surfaces of the side panels 2A, 2A.

[0053] The above-described embodiments and variations can be applied not only to a dishwasher 100 having a door 15 on the front side of the main body 1, but also to dishwashers having a door that opens and closes vertically, for example.

[0054] The present invention may be realized by appropriately combining the above-described embodiments and other modified examples. [Explanation of symbols]

[0055] 1...main body, 1A...machine room, 1B...washing room, 1C...opening, 3...upper nozzle, 4...lower nozzle, 5...washing pump, 6...rinsing tank, 7...rinsing pump, 15...door part, 16...opposing part, 17...extending part, 17a, 17b...side end (end), 17c...front end, 17d...bottom, 18...covering plate, 20...washing tank, 22...storage part, 23...rack rail, 100...dishwasher (washing machine), D...dish (items to be washed).

Claims

1. a main body having a cleaning chamber for accommodating an object to be cleaned and an opening for inserting and removing the object to be cleaned into the cleaning chamber; a door portion that is disposed outside the opening and that can open and close the opening, When a direction perpendicular to the opening surface of the opening is defined as a front-rear direction, and a direction perpendicular to both the front-rear direction and the vertical direction is defined as a left-right direction, The main body portion is a pair of opposing portions extending in the vertical direction along edges of the opening in the left-right direction so as to face the door portion in the closed state in the front-rear direction; a protruding member that is disposed below the door portion in a closed state, protrudes forward along a lower edge of the door portion in the front-to-rear direction, that is, outside the opening, and extends in a substantially horizontal direction so that both ends in the left-to-right direction have portions that face the pair of facing portions, a pair of opposing regions is formed between the two end portions of the protruding member and the pair of opposing portions in the front-rear direction, the protruding member is provided with a plate-shaped blocking plate that blocks at least a part of a communication portion that communicates from the cleaning chamber to at least one of the pair of opposing regions, the protruding member has a pair of side ends opposing each other in the left-right direction, a front end perpendicular to the front-rear direction, and a bottom perpendicular to the vertical direction, A cleaning machine, wherein a gap is formed between the bottom of the protruding member and the lower end of the closing plate.

2. Further, a nozzle is provided in the cleaning chamber and rotates in one direction to spray water, The cleaning machine according to claim 1 , wherein the blocking plate is provided in the opposing region on a side of the extending direction of the protruding member that coincides with the rotation direction of the nozzle.

3. a cleaning tank disposed in a lower region of the cleaning chamber; A cleaning machine as described in claim 2, wherein a storage section in the cleaning tank that stores cleaning water is arranged in the lower region so that the direction perpendicular to the extension direction is the longitudinal direction and so that the storage section is biased toward the rotation direction of the nozzle in the extension direction.

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