JP2006075643A - Dish washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washing and drying machine in which a washing pump can be efficiently cooled by an air flow generated during drying operation. <P>SOLUTION: A washing pump 8 provided under a bottom wall of a washing chamber 2, an air duct 20 with an air suction port 21 in front of a box body 1 and an air delivery port 22 opened in the washing chamber 2, and a bottom part cover 2c provided so as to cover a washing pump 8 are included to jet water into the washing chamber 2 provided in the box body 1. The inside of the bottom part cover 2c is made to communicate with the air suction port 21 and a ventilating opening 2d is provided at a position where an air flow flowing toward the suction port 21 passes near the washing pump 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dishwasher, and more particularly to a dishwasher suitable for a built-in type.

  In general, in a dishwasher for home use, tap water is introduced into the washing cabinet and stored at the bottom, and then the pump is operated to suck in the stored water and feed it to the nozzle. Wash the dishes stored in the washing cabinet by spraying water. After that, the blower fan is actuated to send outside air to the washing cabinet and heated by the heater placed at the bottom of the washing cabinet. The hot air generated thereby dries the dishes. It is trying to discharge outside.

In the conventional general dishwasher, a washing cabinet is arranged inside the casing, and a door that rotates downward is provided on the front of the casing, and the dish is opened from the washing cabinet with the door open. The bag can be pulled out horizontally forward. On the other hand, in recent years, with the spread of the system kitchen, a built-in type dishwasher for incorporation into the system kitchen is also commercially available. As a dishwasher suitable for a built-in type, those described in JP 2000-139799 A are known. That is, this type of dishwasher / dryer is a so-called drawer type dishwasher / dryer, and a washing cabinet with a tableware for storing tableware is configured to be able to be drawn forward together with a front panel that also serves as a door. When the washing cabinet is pulled out, the upper surface of the washing cabinet is wide open so that dishes can be taken in and out from above. When the washing cabinet is pushed into the cabinet, the upper lid that was waiting in the upper space inside the cabinet Falls and closes the upper surface opening of the cleaning cabinet.
JP 2000-139799 A

  In a dishwasher, it is desirable to be able to wash not only various dishes but also cooking utensils such as cutting boards and pans. Therefore, it is preferable that the volume of the washing cabinet is large, but since the size of the housing is limited, there is a demand for ensuring the volume of the washing cabinet as large as possible by effectively using the space in the housing. Yes. In addition, it is difficult to ensure a sufficient height of the cleaning cabinet due to the restriction that it is necessary to accommodate in a system kitchen of a predetermined size.

  Further, since the washing pump continues to be operated almost continuously during the washing operation and the rinsing operation, the washing pump is in a considerably heated state at the end of the rinsing operation. For this reason, when a series of steps of washing, rinsing and drying are repeated, the washing pump may overheat and a failure may occur easily. In particular, in a built-in type dishwasher, since the surroundings are surrounded by walls, ventilation tends to deteriorate, and it is difficult to cool the washing pump efficiently. Furthermore, generally in a drawer-type dishwasher, the bottom cover is provided so that the washing pump is not visible from the outside when the washing cabinet is pulled forward, so that the washing cabinet is stored in the housing. The washing pump is surrounded by the bottom cover and the housing in a double manner, and the generated heat is difficult to escape.

  Another object of the present invention is to provide a dishwasher capable of efficiently cooling a washing pump.

  The present invention, which has been made to solve the above-mentioned problems, is provided in a housing that is provided in a housing and accommodates tableware, and is provided below the bottom wall of the washing cabinet in order to inject water into the washing cabinet. In a dishwasher comprising: the washing pump provided; a blower passage having an intake port in front of the housing and having a blower outlet opened in the washing cabinet; and a bottom cover provided to cover the washing pump; The inside of the bottom cover is communicated with the intake port, and the bottom cover is provided with an opening for ventilation at a position where an air flow flowing toward the intake port passes near the washing pump. Yes.

  According to the present invention, when air to the washing cabinet is started through the air passage during the drying operation, cold air flows from the outside of the bottom cover to the inside through the ventilation opening, and in the vicinity of the washing pump. To reach the air intake. Therefore, even if the cleaning pump is heated during the cleaning operation and the rinsing operation before the drying operation, the cleaning pump is efficiently cooled by the air flow generated during the drying operation. Therefore, even when other dishes are subsequently washed after the drying operation is completed, the washing pump does not overheat, and the life of the washing pump can be extended.

  Hereinafter, a dishwasher according to an embodiment of the first to eleventh inventions will be described with reference to the drawings. 1 and 2 are schematic side cross-sectional views showing the overall configuration of the dishwasher according to the present embodiment. FIG. 1 shows a state in which the washing cabinet is housed in the housing, and FIG. Is shown.

  First, a schematic configuration of the dishwasher will be described. A cleaning cabinet 2 having an upper surface opening 3 is disposed inside the housing 1 having an open front surface, and a tableware bowl 70 for arranging tableware is installed inside the cleaning cabinet 2. A front panel 4 also serving as a door that closes the front opening of the housing 1 is detachably screwed on the front wall 2a of the cleaning cabinet 2, and the front panel 4 and the cleaning cabinet 2 are integrated with the casing. 1 can be drawn forward along a rail 5 installed substantially horizontally on the inner wall surfaces of both sides.

  In the upper space in the housing 1, an upper lid 10 for closing the upper surface opening 3 of the cleaning cabinet 2 is pivotally supported at one end inside the side wall surface of the housing 1 and the other end is pivotally supported on the side surface of the upper lid 10. The pair of left and right parallel links 11 are supported in a swingable manner. In the state where the cleaning cabinet 2 is housed in the housing 1, as shown in FIG. 1, the upper lid 10 is in close contact with the upper surface of the cleaning cabinet 2 to close the upper surface opening 3, and the cleaning cabinet 2 is moved forward from the housing 1. In the pulled out state, as shown in FIG. 2, the upper lid 10 is held in a state where it is lifted forward. Thus, since the upper lid 10 moves in the front-rear direction, a gap is formed between the front wall 2a of the cleaning cabinet 2 and the front panel 4 in consideration of the movement distance.

  When the upper lid 10 is configured to move up and down obliquely in the front-rear direction instead of in the vertical direction, when the cleaning cabinet 2 is stored in the housing 1, the upper lid 10 is moved to the upper surface opening 3 of the cleaning cabinet 2 moving backward. On the other hand, the upper lid 10 also descends from above while moving slightly backward. That is, when the upper lid 10 comes into contact with the upper edge of the cleaning cabinet 2, the contact angle becomes smaller than 90 °, so the seal provided around the lower surface of the upper lid 10 (or the upper edge of the cleaning cabinet 2). There is an advantage that an excessive force is not applied to the member and deterioration of the seal member can be reduced.

The rear wall 2b of the washing cabinet 2 is connected with an extendable water supply pipe 9 having a water supply valve (not shown). When the water supply valve is opened, water supplied from an external water tap or the like is washed through the water supply pipe 9. It is poured into the storage 2. A water tank 7 that is greatly depressed is communicated with the bottom of the front part of the cleaning cabinet 2, and the water poured into the cleaning cabinet 2 flows into the water storage tank 7 and is stored therein. A mesh-like residue collecting filter 15 is detachably provided on the upper portion of the water storage tank 7 for collecting food residues that flow down from the tableware when washing the dishes. A rotatable arm 6 having a plurality of nozzles formed on the upper surface is provided at the center of the bottom of the cleaning chamber 2, and a cleaning and drainage pump 8 is disposed below the bottom surface of the cleaning chamber 2. The washing and draining pump 8 includes a motor that can be driven to rotate in both directions. When the motor rotates in the forward direction, the washing and draining pump 8 functions as a washing pump, and when the motor rotates in the reverse direction, the washing and drainage pump. 8 functions as a drainage pump.

  A bottom cover 2c is attached below the cleaning cabinet 2 so as to cover the cleaning and drainage pump 8, and an opening 2d is provided at the rear of the bottom cover 2c mainly for leading out a drainage hose or the like (not shown). Are vent holes 2e that are concentrated on the rear side. In addition, the water stored in the cleaning chamber 2 is warmed at the bottom of the cleaning chamber 2 and lower than the stored water level L during the cleaning operation and the rinsing operation, and the air in the cleaning chamber 2 is heated during drying. A loop-shaped sheathed heater 12 is provided.

  In the gap between the front panel 4 and the front wall 2 a of the cleaning cabinet 2, an air inlet 21 that is an inlet for airflow opens toward the inside of the housing 1, and an air outlet 22 that is an outlet of the cleaning cabinet 2. A blower passage 20 opened below the front wall 2a is disposed, and a fan 23 that is rotationally driven by a blower motor 24 is provided in the blower passage 20 and in the vicinity of the air inlet 21. The air blowing port 22 is provided at a position higher than the stored water level L of water stored in the cleaning cabinet 2 during the cleaning operation and the rinsing operation for reasons described later. Further, an exhaust path 28 for exhausting air from the inside of the cleaning cabinet 2 to the outside of the machine is provided on the front panel 4 and the upper portion of the front wall 2 a of the cleaning cabinet 2. An operation unit 13 having an operation panel 14 is provided above the exhaust port 30 that is the outlet of the exhaust path 28, that is, at the uppermost portion of the front panel 4. By performing various operations using the operation unit 13, the user can cause the dishwasher to operate.

  Thus, at the time of washing operation or rinsing operation, a water supply valve (not shown) is opened, and water is supplied into the washing chamber 2 through the water supply pipe 9. The water supplied into the cleaning chamber 2 is accumulated at the bottom of the cleaning chamber 2 including the water storage tank 7, and when the stored water level L is reached, the water supply is stopped. At this time, a heating current is supplied to the sheathed heater 12, and the stored water is heated to a predetermined temperature by heat exchange with the sheathed heater 12. When the washing and draining pump 8 is driven as a washing pump, the hot water sucked from the water storage tank 7 is pumped to the arm 6 and injected into the washing chamber 2 from the nozzle. Thereby, water sprays on the tableware accommodated in the tableware bowl 70, and dirt is removed. The food residue adhering to the tableware is collected by the residue collection filter 15, and the water flows into the water storage tank 7 and circulates again.

  Next, a configuration relating to air circulation for drying operation, which is one of the features of the present dishwasher, will be described in detail with reference to FIGS. 3 to 6 in addition to FIG. 3 is a front view of the main part with the front panel 4 removed, FIG. 4 is a front view of the main part of the front panel 4, FIG. 5 is a side sectional view of the main part around the exhaust passage 28, and FIG. It is a schematic diagram which shows the flow of the air at the time of a driving | operation.

  As shown in FIG. 3, an air intake cover member 26 is attached to the front wall 2a of the cleaning cabinet 2 from the front side with a screw, whereby the main air passage 20 is interposed between the air intake cover member 26 and the front wall 2a. And an auxiliary exhaust passage 32 to be described later are formed. When the intake cover member 26 is screwed to the front wall 2a of the cleaning cabinet 2, the watertightness between the intake cover member 26 and the front wall 2a is located below the air passage 20 for the reason described later. A sealing member 33 made of an elastic body is inserted to ensure the above.

  The intake cover member 26 is integrally formed with a fan surrounding portion 26a that is a wall surface surrounding the fan 23, and a motor surrounding portion 26b that surrounds the blower motor 24 on the rear surface thereof and is open at the front (front panel 4 side). The blower motor 24 is exposed when the intake cover member 26 is mounted on the front wall 2a. On the other hand, as shown in FIG. 4, ribs 4 c protrude from the back surface of the front panel 4 at positions corresponding to the motor surrounding portions 26 b of the intake cover member 26. The rib 4c has a notch 4d cut off on the right side, and the motor surrounding portion 26b is cut off on the right side as well. Therefore, when the front panel 4 is attached to the front wall 2a of the cleaning cabinet 2, the rib 4c is fitted so as to sandwich the standing wall of the motor surrounding portion 26b to form a highly airtight wall surface, and toward the right side. An opening is formed. This opening becomes the air inlet 21, and a fan chamber 20 a surrounded by the front panel 4, the front wall 2 a of the cleaning cabinet 2 and the air intake cover member 26 is formed as a part of the air passage 20.

  In the fan chamber 20a, an electromagnetic coil 24a of the blower motor 24 is disposed on the intake port 21 side. The air flow path 20 hangs down straight from the upper part of the fan chamber 20a to the horizontal part 20b extending sideways (rightward in FIG. 3), the bent part 20c bent obliquely downward, and the air blowing port 22. It has a vertical portion 20d. The horizontal portion 20b of the air passage 20 is provided with a damper 25 that can swing freely about a shaft 25a. When the fan 23 is not driven to rotate, the fan 23 is lowered to the lowest position indicated by C in FIG. The space between the chamber 20a and the horizontal portion 20b is blocked. Further, as described above, the auxiliary exhaust passage 32 is formed at the upper portion of the horizontal portion 20b of the air passage 20, and extends obliquely upward and is connected to the exhaust passage 28.

  At the time of washing operation or rinsing operation, there is a possibility that water vapor generated by heating the water stored in the washing cabinet 2 will flow back into the air passage 20 from the air outlet 22. However, during these operations, the fan 23 is not rotationally driven, so the damper 25 is closed, and the water vapor is blocked by the damper 25 and does not reach the blower motor 24, and ascends in the auxiliary exhaust path 32 and goes to the exhaust path 28. Ejected and discharged outside the machine. Therefore, the blower motor 24 is not exposed to moisture, and its life can be kept long.

  However, in the configuration of the present dishwasher / dryer, the blower motor 24 is provided at a position lower than the horizontal portion 20b of the air passage 20, and the bent portion 20c of the air passage 20 and the auxiliary exhaust passage 32 define the horizontal portion 20b. It has an inclined gradient in the same direction across. For this reason, even if the damper 25 is not present or the damper 25 is not sufficiently closed, the water vapor rising from the vertical portion 20d → the bent portion 20c → the horizontal portion 20b does not go to the fan chamber 20a. Most of the air flows into the auxiliary exhaust passage 32. Further, since the connecting portion between the horizontal portion 20b extending from the fan chamber 20a side and the auxiliary exhaust passage 32 is an acute angle, even if the damper 25 is not provided, the air flow generated by the fan 23 is generated by the auxiliary exhaust passage. It is difficult to flow into 32, and most of it goes from the blower opening 22 into the cleaning cabinet 2.

  When the operation is temporarily stopped during the washing operation or the rinsing operation and the washing cabinet 2 is pulled out, the water stored in the bottom of the washing cabinet 2 is swollen. When this water enters the air passage 20 from the air outlet 22, if the water leaks from the close contact surface between the intake cover member 26 and the front wall 2a of the cleaning cabinet 2, the water leaks to the bottom cover 2c and other parts. It accumulates. Therefore, in the present dishwasher / dryer, the air outlet 22 is provided at a position higher than the stored water level L as described above so that water does not easily enter the air passage 20 from the air outlet 22. This makes it difficult for water to enter the air passage 20 from the air outlet 22 not only during the operation of putting in and out the cleaning chamber 2 with water stored in the bottom of the cleaning chamber 2 but also during normal washing operation and excessive operation. Further, even if water enters the air passage 20, the water tightness between the air intake cover member 26 and the front wall 2 a of the cleaning cabinet 2 is extremely low due to the seal member 33 on the lower side of the air passage 20 as described above. Since it is raised, it is possible to almost completely prevent water from leaking from this gap. Furthermore, in this dishwasher / dryer, a notch is formed in the lower edge portion of the air outlet 22 to form a narrow water guide path 22a. As a result, water that has entered the air passage 20 quickly flows out into the cleaning chamber 2 along the guide passage 22a, and the inside of the air passage 20 (particularly, the contact portion between the front wall 2a of the cleaning chamber 2 and the intake cover member 26). It is prevented from accumulating at a slight step). As a result, dirty water does not accumulate and no odor is generated.

  During the drying operation after the washing operation and the rinsing operation as described above, the fan 23 is rotationally driven by the blower motor 24 in a predetermined direction. Then, as indicated by arrows in FIGS. 3 and 6, air is sucked from the air inlet 21 and is pumped from the fan chamber 20a to the horizontal portion 20b. The air inlet 21 does not directly communicate with the outside of the machine, but communicates with the space in the bottom cover 2c. As described above, the bottom cover 2c is provided with the opening 2d and the vent hole 2e. Further, since there are gaps in each part of the casing 1, fresh outside air outside the machine smoothly flows into the casing 1, then flows into the bottom cover 2c through the opening 2d and the vent hole 2e, and the intake port 21. Will flow into the air passage 20.

  Normally, the pump motor is stopped during the drying operation, but the pump motor is heated and heated by the previous washing operation and rinsing operation. Here, since the vent holes 2e are concentrated on the rear side of the bottom cover 2c, the cold air flow taken from the outside easily touches the pump motor of the washing and drainage pump 8 inside the bottom cover 2c, and the drying operation is performed. Sometimes the pump motor can be cooled efficiently. Such cooling of the pump motor is particularly effective when the next tableware is washed after the drying operation. In this dishwasher, the air inlet of the air passage is opened in the gap between the front wall of the washing cabinet and the front panel. However, in order to cool the pump motor as described above, the air inlet is covered with the bottom cover. It suffices if it is disposed inside and in front of the housing, more precisely in front of the pump motor.

  Further, the cold air that has flowed into the air passage 20 from the air inlet 21 immediately hits the electromagnetic coil 24 a of the blower motor 24. Thereby, the electromagnetic coil 24a can be cooled and the overheating can be prevented. In particular, since the airtightness is enhanced by the fitting of the standing wall of the motor surrounding portion 26b and the rib 4c of the front panel 4, such air leakage from the surroundings is small, and the air inlet 21 can be reliably connected. The electromagnetic coil 24a can be efficiently cooled by sucking air. When such an air flow is generated by the fan 23, the damper 25 is pushed and released (position indicated by D in FIG. 3), and the air flow is the horizontal portion 20b → the bent portion 20c → the vertical portion 20d of the air passage 20. Then, the air is discharged from the blower opening 22 into the cleaning cabinet 2. The exhaled air is heated by the sheathed heater 12 in the washing cabinet 2 and dries the dishes while rising.

  As shown in FIGS. 3 and 5, an exhaust introduction port 29 is provided in the upper portion of the front wall 2 a of the cleaning cabinet 2, and an exhaust cover member 27 is attached to the exhaust inlet 29 from the front side. Is formed. That is, the exhaust passage 28 has an exhaust introduction port 29 that opens toward the cleaning chamber 2 and an exhaust port 30 that opens toward the outside of the machine, and the exhaust introduction port 29 and the exhaust passage 28 are blocked by its own weight inside. A damper 31 is provided. During a time other than the drying operation, for example, during the washing operation or the rinsing operation, the damper 31 is closed to prevent the noise generated in the washing cabinet 2 from leaking outside through the exhaust passage 28. In addition, although the damper 31 is closed in this manner, the water vapor generated from the hot water in the washing chamber 2 flows into the air blowing path 20 from the air blowing port 22, but as described above, it is smooth without adversely affecting the blower motor 24 and the like. Are discharged from the exhaust passage 28 to the outside of the machine.

  During the drying operation, as described above, the air pressure in the cleaning cabinet 2 is increased by the inflow of air from the blower opening 22, so that the damper 31 is pushed from the cleaning cabinet 2 side to be opened (indicated by a two-dot chain line in FIG. 5). Position), moist air containing a large amount of water vapor evaporated from the dishes is discharged from the exhaust port 30 through the exhaust passage 28 to the outside of the apparatus. In the exhaust passage 28, a structure for condensing and liquefying the water vapor so that the water vapor is not discharged to the outside as it is and flowing down to the bottom of the cleaning cabinet 2 is disposed, or removing the odor in the exhaust gas. An odor means may be arranged.

  As described above, in this dishwasher / dryer, consideration is given to reduce the failure of the blower motor 24. However, even if a malfunction occurs, it is only necessary to remove the screw that attaches the front panel 4 to the dishwasher / dryer. As shown in FIG. 3, the blower motor 24 is exposed. Further, since the intake cover member 26 is also only screwed to the front wall 2a of the cleaning cabinet 2, it can be removed immediately by removing the screw. For this reason, it is possible to easily repair a failure or perform maintenance and inspection while the dishwasher is built in the system kitchen.

  In this dishwasher, as shown in FIG. 5, an operation panel 14 inclined obliquely upward is provided at the uppermost part of the front panel 4, and a power switch and a start / pause for operation are provided on the inside thereof. A circuit unit 50 is provided which is equipped with various switches such as switches and switches for selecting a cleaning course, an LED display for displaying according to the selection through these switches, and a display for indicating the operation status. It has been. An exhaust port 30 is disposed on the lower side of the operation panel 14, and the upper edge portion of the exhaust port 30 extends greatly forward to form an eaves portion 41. The eaves portion 41 protrudes forward by W1 from the lower edge portion of the operation panel 14. For this reason, the exhaust gas discharged from the exhaust port 30 is unlikely to circulate rearward, and water vapor contained in the exhaust gas can be prevented from being condensed and clouded by the operation panel 14. Further, the lower edge portion of the operation panel 14 protrudes by W2 from the front surface 60 of the system kitchen in which the dishwasher is incorporated. Therefore, when the user looks down at the present dishwasher from obliquely above, the operation panel 14 is not hidden by the front 60 of the system kitchen, and the display is easy to see and the keys are easy to operate.

  In the present dishwasher / dryer, a characteristic configuration is adopted in order to realize the operation panel 14 directed obliquely upward as described above. Next, the configuration of the operation unit including the operation panel 14 will be described with reference to FIGS. 7 is a side view of the front panel, FIG. 8 is a longitudinal sectional view of the upper portion of the front panel, FIG. 9 is a front view of the circuit unit attached to the back surface of the operation panel section at the upper portion of the front panel, and FIG. 9 is a sectional view taken along the line AA ′ in FIG. 9 and FIG. 11 is a sectional view taken along the line BB ′ in FIG.

  The front panel 4 is a molded product made of a synthetic resin material. The mold removal direction when the front panel 4 is molded is the direction indicated by the arrow in FIG. 8, and the boss 42 for attaching the circuit unit 50 to the back surface of the operation panel 40 with a screw is also the mold removal direction. Stands in the same direction. On the other hand, as shown in FIGS. 9 to 11, the circuit unit 50 includes a lower case 52 that houses the circuit board 53 and an upper case 51 that is screwed onto the lower case 52 with screws 54. Both the upper case 51 and the lower case 52 are molded products made of a synthetic resin material. On the circuit board 53, a non-locking type push button switch 531 that opens and closes only when the protruded operation element is pressed, an LED array 532, and a numeric display 533 are appropriately mounted. Circuit parts are also mounted.

  In the upper case 51, an opening 511 having a predetermined size is formed at a position corresponding to the LED array 532 and the numeric display 533, and the push button switch 531 is operated by receiving a pressing force from substantially vertically above. A pressing force transmission part 512 for transmitting to the child is formed. Each pressing force transmitting portion 512 has an operation main body portion 512a that is formed in a concave shape in the center and protrudes forward from the surrounding surface, and an operating main body that has an elastic force in a direction around the operation main body portion 512a to receive the pressing force. And a spiral spring portion 512b that supports the portion 512a.

  A mounting piece 513 is formed on the upper case 51 so as to protrude vertically. As shown in FIG. 10, the circuit unit 50 is attached to the front panel 4 by screwing the mounting piece 513 to the boss 42 with a screw 55. The operation panel 40 is fixed to the back surface. In the operation panel section 40, openings 43 having predetermined sizes are formed at positions corresponding to the LED array 532 and the numeric display 533 and positions corresponding to the operation main body section 512a of the upper case 51, respectively. Therefore, when the circuit unit 50 is fixed to the back surface of the operation panel 40, the top of the LED array 532 and the surface of the numeric display 533 are exposed to the outside through the opening 43. In addition, the operation main body portion 512a of the upper case 51 is inserted with an appropriate gap from the periphery of the opening 43, and the upper surface thereof is substantially flush with the surface of the operation panel portion 40.

  A membrane sheet 44 is adhered to the surface of the operation panel 40 using an adhesive or the like as a film forming an operation surface. The membrane sheet 44 is a flexible resin sheet, and a bulging portion 44a is formed at a position corresponding to the operation main body portion 512a. Has been. The positions corresponding to the LED array 532 and the numeric display 533 are transparent or translucent so that the lower display can be seen through. Thus, when the user presses the bulging portion 44a of the membrane sheet 44 with a finger, the operator of the push button switch 531 is pressed via the operation main body portion 512a. When the pressing by the user is released, the operating main body part 512a returns to the original position by the restoring force of the spring part 512b, and the pressing of the operating element of the push button switch 531 is released.

  In this dishwasher, since the operation panel 40 of the front panel 4 is not perpendicular to the mold removal direction but is inclined, the movable body corresponding to the pressing force transmitting unit 512 is operated using this mold. The panel portion 40 cannot be formed integrally. However, as described above, the pressing force transmission part 512 is formed in the upper case 51 which is a separate member from the operation panel part 40, and the operation panel part 40 corresponds to the pressing force transmission part 512 and other indicators. By providing the opening 43, the same operability as when the movable body corresponding to the pressing force transmitting portion 512 is provided on the operation panel portion 40 can be achieved.

  Furthermore, by adopting such a structure, there is an advantage that the area of the pasting part on the back surface of the membrane sheet 44 can be increased. In other words, when the entire pressing force transmission part 512 is exposed on the surface of the operation panel part 40, it is necessary to prevent the adhesive from adhering to all parts of the spring part 512b. A non-adhesive part (part where no adhesive is attached) is formed in a wide area around the switch part. On the other hand, in the structure of the operation panel of the dishwasher, only the operation main body portion 512a protrudes from the opening 43 and the surrounding spring portion 512b is recessed from the opening 43, so the periphery of the switch portion on the back surface of the membrane sheet 44 Even if the area of the non-bonded portion is reduced, there is no possibility that the adhesive will adhere to the spring portion 512b. As a result, the sticking property of the membrane sheet 44 increases and it becomes difficult to peel off. In particular, in the case of the dishwasher according to the present embodiment, although the exhaust gas discharged from the exhaust port 30 does not directly hit the surface of the membrane sheet 44 as described above, it is unavoidable that the humidity around the surface increases. Absent. However, since the adhesiveness between the membrane sheet 44 and the surface of the operation panel unit 40 is good, it is difficult for minute water droplets to enter between them, preventing peeling and preventing entry into the inside.

  Next, the tableware bowl 70 in the dishwasher will be described in detail with reference to FIGS. 12 is a top view of the tableware bowl 70, FIG. 13 is a front view of the tableware bowl 70, and FIG. 14 is a front view showing the positional relationship between the tableware bowl 70 and the arm 6 in the washing cabinet 2.

  One of the features of the tableware bowl 70 is that it includes a detergent container for cleaning. That is, the detergent container 73 is provided on the front side of the upper shelf 71 that is rotatable about the shaft 72 so as to be rotatable about the shaft 74. The detergent container 73 has a dish-like shape whose entire upper surface is open, and an outflow hole 73a through which the detergent flows out opens at the bottom of the bottom surface inclined in one direction, and extends in a tongue shape below the outflow hole 73a. A protrusion 73b is provided for preventing the detergent from dropping. Before the start of the washing operation, the powder detergent is put into the detergent container 73 by the user. A part of the detergent may spill out from the outflow hole 73a, but since the protrusion 73b is located below the detergent, the detergent is prevented from falling on the protrusion 73b and falling to the bottom of the washing cabinet 2. it can.

  Further, the bowl immediately below the detergent container 73 is a soup bowl mounting area in which curved wire rods are arranged at predetermined intervals as shown in FIG. Therefore, since the tableware accommodated in this area has a small diameter, the detergent container 73 can be horizontally spread and arranged as shown by a solid line in FIG. 13 without being obstructed by such lower tableware. Further, the upper shelf 71 is rotatable about the shaft 72 and can be erected as shown in FIG. 13, and the detergent container 73 itself can be rotated about the shaft 74. Tableware can be accommodated in the lower basket in a state where the container 73 is rotated so as to cover the upper shelf 71, and then the detergent container 73 can be spread horizontally to introduce the detergent.

  When water warmed by an external water heater is supplied during washing operation, even if the water supply valve is opened and water begins to flow and the water heater ignites, there will be a slight delay before hot water actually begins to come out. Until then, the cold water accumulated in the hot water supply pipe flows into the washing chamber 2. Therefore, when hot water is supplied from such a water heater, drainage is also performed in parallel at the initial stage of the water supply, and the cold water supplied to the washing cabinet 2 at the initial stage of the water supply is discharged outside the machine. After a certain amount of time has passed, the hot water heated by the water heater is supplied into the washing cabinet 2, and the drainage is stopped to store the hot water. Therefore, if the detergent is directly put into the cleaning cabinet 2, a part of the detergent dissolved (or mixed) in the original cold water may be discharged out of the machine as it is. On the other hand, in this dishwasher, since the detergent is stored in the detergent container 73, the detergent is not dissolved or mixed in the water when water is supplied, and the detergent is prevented from being discharged without being used. it can. When the washing operation is actually started and water starts to be sprayed from the nozzle of the arm 6, the water jumps into the detergent container 73, and the detergent also falls into the washing cabinet 2 when the water flows down from the outflow hole 73a. To do. Therefore, the detergent is not wasted.

  Another feature of the dishwasher 70 in the present dishwasher is that it is difficult to secure a sufficient space in the washing cabinet 2 in the height direction so that a large dish can be accommodated. This is the point that a part of is made into a shape suitable for accommodating a large dish. That is, as shown in FIG. 14, a part of the wire rod on the bottom surface of the tableware bowl 70 is lowered by one step from the other part to form a large dish placing portion 75. The distance between the upper lid 10 and the upper lid 10 is increased by the amount lowered as described above, and the large dish 79 can be accommodated. However, on the other hand, the distance d between the lowest part of the tableware bowl 70 and the arm 6 is reduced, and when the arm 6 rotates, it contacts the tableware bowl 70 (or the tableware that protrudes downward from the lowest part of the tableware bowl 70). The risk of doing it increases. Therefore, in the present dishwasher, considering that the danger of contact becomes the highest when the arm 6 is tilted and rotated by backlash as shown in FIG. The large dish placing portion 75 is not provided on the outer peripheral side that is narrower, and the large dish placing portion 75 is provided on the inner peripheral side of the arm 6. Thereby, even when the arm 6 rotates while tilting, it is possible to reliably avoid the arm 6 from coming into contact with the bottom of the tableware bowl 70 or the tableware protruding therefrom.

  Next, the residue collection filter 15 in the dishwasher will be described in detail. FIG. 15 is a top view (a) and a side view (b) of the residue collecting filter 15. In the residue collecting filter 15, a handle portion 153 for a user to pick with a finger is formed by integrally molding a mesh-like screen 152 and a synthetic resin. The handle portion 153 is provided with a plurality of wave-shaped anti-slip portions 154 that are accommodated inside the outer frame 151 and extend in the vertical direction. Usually, when the user picks up the handle of the residue collecting filter 15, the fingertip is positioned as shown by a one-dot chain line in FIG. 15B. As shown in F, a rotational force acts. On the other hand, since the anti-slip part 154 of the handle part 153 acts so as to oppose this rotational direction, it is possible to effectively prevent the slip-off while having a simple structure.

  Further, since the waveform shape of the anti-slip portion 154 extends in the vertical direction, when the residue collecting filter 15 is integrally formed, a die that is pulled out in the vertical direction may be used, and the metal that is pulled out in the horizontal direction is used. No mold is required. Therefore, there is an advantage that the manufacturing cost can be suppressed.

  Next, a configuration for installing the dishwasher in the system kitchen will be described. 16 is a partial front perspective view showing a state in which the present dishwasher is installed in the system kitchen, FIG. 17 is a side view showing a state in which the present dishwasher is installed in the system kitchen, and FIG. 18 is a portion G in FIG. FIG.

  As is clear from the above description, in the present dishwasher, the washing cabinet 2 has a considerably large weight. Therefore, when the drawer 2 is pulled forward, a large force acts to move the housing 1 forward at the end of the drawer. To do. Moreover, since the center of gravity comes to the front in the state where the washing chamber 2 is completely pulled out, a large force acting forward is applied. Therefore, the dishwasher is fixed to the platform 61 of the system kitchen as follows so that the dishwasher does not move and the rear part does not float up. That is, in this dishwasher / dryer, a pair of left and right front fixing portions are provided inside the front side walls of the housing 1, and a rear fixing portion is provided substantially at the center of the rear portion of the housing 1. .

  As shown in FIG. 16, the rear fixing portion is screwed to a predetermined position of the mounting table portion 61 with a lifting prevention metal fitting 80 formed by bending in a substantially U shape, and then the housing 1 is attached from the front. Store almost straight. Then, the locking piece 80a of the lifting prevention metal fitting 80 is inserted into the locking opening 1c provided in the rear plate 1b of the housing 1, and the movement in the vertical direction, the horizontal direction, and the rear direction is locked.

  On the other hand, as shown in FIG. 17 and FIG. 18, the front fixing portion is provided with an L-shaped front displacement prevention fitting 81 with a screw 82 at the rear of the front frame 1 a attached to the front surface of the housing 1. It is screwed into a predetermined position, and is screwed to the front displacement prevention metal fitting 81 with a screw 83 penetrating the front frame 1a from the front of the front frame 1a. As a result, the front slip prevention fitting 81 is hidden behind the front frame 1a, and only the head of the screw 83 is visible in front of the front frame 1a, so that the appearance is very good. Note that the bottom cover 2c of the washing cabinet 2 that is taken in and out through the front opening formed in the front frame 1a has a curved lower edge on both sides as shown in FIG. No interference occurs. As described above, the dishwasher / dryer can be stably and nicely installed in the system kitchen by the three fixing portions.

  Furthermore, in this dishwasher / dryer, the front side of the front frame 1a of the casing 1 and the front panel 4 (and the cleaning cabinet 2) facing the front side of the casing 1 in a state in which the cleaning cabinet 2 is housed in the casing 1. A structure that increases the airtightness between the walls is adopted. 19 is a cross-sectional view of a portion corresponding to the G portion in FIG. 17, and FIG. 20 is a cross-sectional view of a portion corresponding to the H portion in FIG.

  As shown in FIG. 19, a seal member 1d made of an elastic body functioning as a soundproof packing is attached around the front frame 1a made of synthetic resin. That is, a mounting groove 1aa is formed in the front surface of the front frame body 1a to which the seal member 1d is attached, while the peripheral edge portion of the front frame body 1a is a rib 1ab protruding rearward, The inside of the rib 1ab falls to the front side. The sealing member 1d includes a projecting piece projecting in a claw shape that is fitted into the mounting groove 1aa while covering the peripheral edge portion of the front frame body 1a, and a fixing portion 1da that includes a claw-like engagement piece that engages with the rib 1ab. And an extending piece 1db as a hermetic holding portion that is integrated with the fixing portion 1da and is in close contact with the rear surface of the front panel 4 with a moderate repulsive force. The fixing portion 1da of the sealing member 1d has such a shape and is fitted into the front frame body 1a. Further, the edge portion on the rear surface side of the fixing portion 1da is the casing 1 on the rear side of the front frame body 1a. When being attached to the frame, it is sandwiched between the two, so that even if the user applies a force such as pulling the seal member 1d from the front or oblique direction, it is prevented from falling off from the front frame 1a.

  Furthermore, as shown in FIG. 20, the seal member 1d is fixed to the eaves portion 1f extending forward by screws 84 at the upper edge of the front frame 1a. Since the sealing member 1d has a drooping piece 1e in front of the screwed portion, the head of the screw 84 is hidden behind the drooping piece 1e when the eaves portion 1f is viewed from the front or obliquely upper front. It looks good.

  In this way, the extension piece 1db closes the space between the front frame 1a and the abutting wall surface on the front panel 4 (and the washing cabinet 2) side, so that the jet water generated in the washing cabinet 2 during the washing operation and the rinsing operation This makes it difficult for the tableware tapping sound and other various sounds to leak out of the machine, and it is possible to achieve quietness during operation of the dishwasher.

  The above embodiment is merely an example, and it is obvious that changes and modifications can be made as appropriate within the scope of the present invention.

The side surface schematic sectional drawing in the state which accommodated the washing | cleaning cabinet in the housing | casing in the dishwasher by one Embodiment of the 1st-11th invention. The side surface schematic sectional drawing in the state which pulled out the washing | cleaning cabinet from the housing | casing in the dishwasher by this embodiment. The front view of the principal part in the state which removed the front panel in the dishwasher by this embodiment. The front view of the principal part of the front panel in the dishwasher by this embodiment. Sectional drawing of the principal part around an exhaust path in the dishwasher by this embodiment. The schematic diagram which shows the flow of the air at the time of the drying operation in the dishwasher by this embodiment. The side view of the front panel in the dishwasher by this embodiment. Sectional drawing of the principal part of the front panel in the dishwasher by this embodiment. The front view of the circuit unit of the operation part in the dishwasher by this embodiment. FIG. 9 is a cross-sectional view taken along line A-A ′ in FIG. 8 in a state where the circuit unit of the operation unit is attached to the front panel in the dishwasher according to the present embodiment. FIG. 9 is a cross-sectional view taken along the line B-B ′ in FIG. 8 in a state where the circuit unit of the operation unit is attached to the front panel in the dishwasher according to the present embodiment. The top view of the tableware bowl in the dishwasher by this embodiment. The front view of the tableware bowl in the dishwasher by this embodiment. The front view which shows the positional relationship of the tableware bowl and arm in the washing | cleaning store | warehouse | chamber in the dishwasher by this embodiment. The top view (a) and side view (b) of the residue collection filter in the dishwasher by this embodiment. The partial front perspective view which shows the state which installed the dishwasher by this embodiment in the system kitchen. The side view which shows the state which installed the dishwasher by this embodiment in the system kitchen. The enlarged view of the G section in FIG. Sectional drawing of the location corresponded to the G section in FIG. Sectional drawing of the location corresponded to the H section in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Housing 1a ... Front frame 1aa ... Mounting groove 1ab ... Rib 1b ... Rear plate 1c ... Locking opening 1d ... Sealing member 1da ... Fixed part 1db ... Extension piece 1e ... Drooping piece 1f ... Eave part 2 ... Washing cabinet 2a ... Front wall 2b ... Rear wall 2c ... Bottom cover 2d ... Opening 2e ... Vent hole 3 ... Upper surface opening 4 ... Front panel 40 ... Operation panel part 41 ... Eaves part 42 ... Boss 43 ... Opening 44 ... Membrane sheet 44a ... Swelling Part 6 ... Arm 7 ... Water storage tank 8 ... Cleaning and drainage pump 10 ... Upper lid 12 ... Sheath heater 13 ... Operation part 14 ... Operation panel 15 ... Residual collection filter 151 ... Outer frame 152 ... Screen 153 ... Handle part 154 ... Non-slip Portion 20 ... Blower passage 20a ... Fan chamber 20b ... Horizontal portion 20c ... Bent portion 20d ... Vertical portion 21 ... Air inlet 22 ... Air outlet 22a ... Guide passage 23 ... Fan 24 ... Blower motor 2 4a ... Electromagnetic coil 25 ... Damper 25a ... Shaft 26 ... Intake cover member 26a ... Fan enclosure portion 26b ... Motor enclosure portion 27 ... Exhaust cover member 28 ... Exhaust passage 29 ... Exhaust inlet 30 ... Exhaust port 31 ... Damper 32 ... Auxiliary exhaust Path 33 ... Seal member 50 ... Circuit unit 51 ... Upper case 511 ... Opening 512 ... Pressing force transmission part 512a ... Operating main part 512b ... Spring part 513 ... Mounting piece 52 ... Lower case 53 ... Circuit board 531 ... Push button switch 532 ... LED array 533 ... number indicators 54, 55, 82, 83, 84 ... screw 60 ... system kitchen front 61 ... mounting table 70 ... tableware bowl 71 ... upper shelf 72 ... shaft 73 ... detergent container 73a ... outflow hole 73b ... protrusion Piece 74 ... Shaft 75 ... Large pan mounting portion 80 ... Floating prevention metal fitting 80a ... Locking piece 81 ... Prevention deviation metal fitting

Claims (1)

A cleaning cabinet provided in the casing and containing tableware, a cleaning pump provided below the bottom wall of the cleaning cabinet for injecting water into the cleaning cabinet, and an intake port in front of the casing A dishwasher comprising a blower passage having an air outlet opened in a washing cabinet and a bottom cover provided to cover the washing pump,
The inside of the bottom cover and the intake port are communicated with each other, and the bottom cover is provided with an opening for ventilation at a position where an air flow flowing toward the intake port passes in the vicinity of the washing pump. Dishwasher to do.

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