JP2001252232A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher capable of uniform washing. SOLUTION: In a dishwasher equipped with a washing tub, a water tank disposed in the lower portion of the washing tub and a washing pump, a plurality of tubular rotating nozzles extended crosswise the washing tub are arranged side by side longitudinally in the washing tub and washing water is supplied to the rotating nozzles from the washing pump.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher.

[0002]

2. Description of the Related Art Conventional dishwashers are disclosed in, for example,
As described in US Pat.
The tableware basket of the tier is arranged, the long washing nozzle which rotates around the longitudinal direction is arranged between the upper and lower tableware baskets, and two flat rotary washing nozzles are provided below the lower tableware basket. Are disclosed. A cleaning pump that circulates the cleaning water to the long cleaning nozzle and the plane rotary cleaning nozzle and a drain pump that drains the cleaning water after the cleaning are disposed below the cleaning tank. Also, outside the cleaning tank,
V that sends cleaning water to the flat rotary cleaning nozzle below
A U-shaped water pipe and a vertical water pipe for supplying cleaning water to a long cleaning nozzle extending in the vertical direction at the rear central portion are provided.

[0003]

In the above-mentioned conventional dishwashing machine, the washing water sprayed from the washing nozzle is difficult to spread over the entirety, and the washing is not easy to occur.

[0004] It is an object of the present invention to address the above-mentioned problems and to provide a product having less washing unevenness.

[0005]

According to the present invention, there is provided a dishwasher having a washing tank, a water tank provided below the washing tank, and a washing pump, and a tubular dish extending over the width of the washing tank. A plurality of rotary nozzles are arranged in a row in the front-rear direction of the cleaning tank, and cleaning water is supplied to the rotary nozzles from the cleaning pump.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, the appearance of the dishwasher will be described. As shown in FIGS. 1, 2, 3, and 19, the outer frame body 1 includes an outer frame plate 2, a back plate 3, a base table 4, a front panel 26, and the like. On the front side of the outer frame 1, a lower door 6,
An upper door 7 is provided so as to be freely opened and closed.

The outer frame plate 2 made of a steel plate is provided with side plate portions 8 on both sides.
And a top plate 9 and are formed in a U-shape. The back plate 3 made of a steel plate has a bent portion 20 on the lower side. A lower corner portion of the side plate portion 8 of the outer frame plate 2 is cut out so that the bent portion 20 is fitted.

The base plate 4 made of a steel plate has a bottom portion 21 and side portions 2.
2. It has a back 23. The bottom 21 is provided with rubber feet 24. The bent portion 20 of the outer frame plate 2 is provided on the inner surface of the back portion 23.
Are overlapped and fastened and fixed with screws 25.

The front panel 26 made of synthetic resin includes:
It is provided so as to close the front opening of the base plate 4. The front panel 26 is fixed to the base plate 4 by screws, caulking or the like. A controller 27 for control is provided on the inner surface of the front panel 26. An operation base 29 is fitted and provided in a horizontally long opening 28 formed in the center of the front panel 26. An operation plate 30 is provided on the surface of the operation base 29.
Are provided to overlap. A recess 40 is provided in the upper edge of the front panel 26. The concave portion 40 is provided with a filter 200 for collecting garbage, which will be described in detail later.

The lower door 6 is opened so as to be tilted forward as shown in FIG. An inner cover 41 is provided on the inner surface of the door 6. The lower door 6 has a handle 43 on the opening 42 on the surface.
Is provided.

The upper door 7 is opened so as to jump upward as shown in FIG. The upper door 7 is composed of two door pieces 44 and 45. The upper edge of the door piece 44 and the lower edge of the door piece 45 are connected by a hinge (not shown), and when opened, are folded as shown in FIG. Inner covers 46 are also provided on the inner surfaces of the door pieces 44 and 45. The door piece 44 has a window 47 formed of a transparent member.
Is provided. Through this window 47, the inside of the dishwasher can be seen. Although a handle is provided on the door piece 44, it is not shown. An exhaust port 48 is provided in the door piece 45. As will be described later, steam and the like accompanying the washing / drying operation are discharged from the exhaust port 48.

The cleaning tank 60 is provided inside the outer frame plate 2 constituting the outer frame 1. A water storage tank 61 arranged below the cleaning tank 60 is provided inside the base table 4.

The cleaning tank 60 is formed of a synthetic resin and has side portions 62, a ceiling portion 63, and a back portion 64 on both sides. The front and lower sides are open. An outwardly extending flange portion 65 is formed on the front edge of the side portion 62 and the ceiling portion 63.
A concave portion 66 to which a blower described later is attached is formed in the right side portion 62. A concave portion 67 for accommodating a water level sensor described below is formed below the back portion 64. Both the concave portion 66 and the concave portion 67 are formed so as to be recessed inside the cleaning tank 60.

The peripheral portion of the doors 6, 7 abuts on the flange 65 of the cleaning tank 60. Since the watertight packing (not shown) is provided on the flange portion 65, the doors 6, 7 and the flange portion 65 come into contact with each other through the packing.

The water reservoir 61 has a horizontally long shape and has a flange portion 68 extending outward at an upper peripheral portion. Since the lower end of the cleaning tank 60 is in contact with the flange portion 68 via a watertight packing (not shown), there is no water leakage. The flange portion 68 has a cutout portion 69 whose front side is cutout. The cutout portion 69 is where a filter for collecting garbage that can be pulled out, which will be described later, fits.

The water tank 61 is shown in FIGS. 3, 4, 11, and 16.
As shown in (1), the bottom has an opening 80 communicating with the suction port of the cleaning pump. The location where the opening 80 is provided is at the lowest position. The left side of the opening 80 is made shallow by raising the bottom. Therefore, a space is formed in the lower left part of the water tank 61. The cleaning pump 81 is placed in this space.

The right side of the water reservoir 61 is also partially raised to a shallow bottom. 3, 9, 4, 5, 6, 7, 9, 11, 13, 14, and 15, a suitable space is provided below the water tank 61. It is formed. As shown in FIGS. 9 and 11, an external terminal for connection of the heater 82 is placed in the space represented by (A). In the space represented by (b), the water supply solenoid valve 83
Is placed. A drain pump 84 is placed in the space represented by (c). The heating heater 82 is arranged so as to float slightly from the bottom surface of the water tank 61 so that heat is not directly transmitted to the water tank. Thereby, the water reservoir 61 is not thermally deformed, and there is no fear of water leakage or the like due to the thermal deformation, which is safe.

The branch water tank 85 is arranged below the water tank 61. Since the distance between the lower surface of the water reservoir 61 and the base is small, the branch water reservoir 85 is formed in a thin and wide shape. The branch water tank 85 has a hollow inside, and the water tank 6
A suction port 86 for receiving water from 1, a supply port 87 for supplying cleaning water to the cleaning pump 120, a drain port 88 communicating with the drain pump 84, and a communication port 89 communicating with the water level detection unit 100 are internally connected to each other. I have.

The opening 80 of the water tank 61 is placed so as to fit into the suction port 86 of the branch water tank 85 as shown in FIG.
Water leakage is prevented by interposing a watertight packing (not shown). The supply port 87 has the cleaning pump 8
1 is connected. A drain pump 84 is connected to the drain port 88 as shown in FIGS. A water level duct 100 is connected to the communication port 89 as shown in FIGS.

The water level duct 100 includes an air tube 10.
1, the water level sensor 102 is connected. The water level sensor 102 is placed in the concave portion 67 at a position higher than the water reservoir 61 as shown in FIG.

As described above, the external terminal for connection of the heater 82 is in the space (a), and the water supply electromagnetic valve 83 is in the space (b).
In addition, since the amount of the drainage pump 84 that fits in the space (c) and protrudes from the side surface and the back side surface is reduced, the width and depth of the outer frame 1 can be reduced, and the outer frame 1 can be reduced in size.

The drain pump 84 has a motor section 103 and a pump section 104, and the pump section 104 is arranged so as to be arranged in series in the axial direction of the motor section 103.
It is long in the axial direction. Since the drainage pump 84 is arranged in the space (c) such that the longitudinal direction of the drainage pump 84 is along the longitudinal direction of the water reservoir 61, the amount of protrusion of the drainage pump 84 can be reduced, in particular. , To further contribute to downsizing.

As shown in FIG. 3, the space (c) protrudes higher than the space (a) and the space (b). This is because the outside diameter of the drainage pump 84 is
This is due to being raised higher by a larger amount.

A drain hose 106 is connected to a discharge port of the drain pump 84 via a siphon breaker 105. The siphon breaker 105 prevents the drain water from flowing backward from the drain hose 106 side to the branch water tank 85. Since backflow to the branch water tank 85 is prevented, generation of an unusual odor can be suppressed. Further, by providing a valve body or the like inside this, it is possible to prevent cockroaches or the like from entering the machine. Although the drainage port 88 of the branch water tank 85 is directed upward, by turning it downward, the amount of drainage remaining in the branch water tank 85 can be reduced, and the generation of off-flavors can be suppressed.

A water supply hose 107 is connected to the supply port side of the water supply electromagnetic valve 83. On the discharge port side of the water supply solenoid valve 83,
The water supply duct 108 is connected as shown in FIG. The water supply duct 108 extends upward along the outer surfaces of the water reservoir 61 and the cleaning tank 60, and the outlet at the upper end is connected to the cleaning tank 60.
It is arranged to face inside.

The cleaning pump 81 has a motor section 120 and a pump section 121 as shown in FIG. A pump runner 122 in the pump section 121 is supported by a rotating shaft of the motor section 120. The pump section 121 has a suction port 123 and a discharge port 124. A cooling fan 125 is provided on the rotating shaft of the pump unit 120 on the opposite side of the pump unit 121. The cleaning pump 81 is long in the axial direction because the pump unit 121 and the fan 125 are arranged in series in the axial direction of the motor unit 120.

As described above, the cleaning pump 81 provided in the lower left space of the water reservoir 61 is disposed such that the axial direction of the cleaning pump 81 is orthogonal to the longitudinal direction of the water reservoir 61 as shown in FIG. . The cleaning pump 81 includes the fan 12
Since the place of 5 overhangs to the rear of the water tank 61,
The width and depth of the outer frame 1 can be made smaller and more compact than in a case where the cleaning pumps 81 are arranged next to or next to the water reservoir 61.

The suction port 123 of the cleaning pump 81 is
As shown in FIG. 16, it is connected to the supply port 87 of the branch water tank 85. Since the watertight packing 126 is provided on the outer periphery of the suction port 123, the suction port 123 is connected to the supply port 87 so as not to leak water. The discharge port 124 passes through a part of the water reservoir 61 and is connected to a lower end connection port of the branch pipe 127. Since the outer periphery of the discharge port 124 is provided with a watertight packing 128, the discharge port 124 and the lower end connection port are connected so as not to leak water.

The branch pipe 127 is shown in FIG. 2, FIG. 3, FIG.
As shown in FIG. The three discharge ports are a discharge port 131 for the lower rotary nozzle body, a discharge port 129 for the lower fixed nozzle body, and a discharge port 130 for the upper nozzle. The pipe 140 forming the discharge port 131 for the lower rotary nozzle body extends laterally and has a tip bent upward. Tube 14
A lower rotary nozzle body 141 is rotatably attached to and supported by the leading end of the zero. The lower rotary nozzle body 141 is an injection unit that jets a jet in a shower shape. The pipe 142 in which the discharge port 129 for the lower fixed nozzle body is formed extends toward the front side along the side surface of the water reservoir 61 and has a tip bent at right angles to the side. The extension pipe 143 connected to the tip of the pipe 142 is arranged along the front inner wall surface of the water reservoir 61. A lower fixed nozzle body 144 is connected to the middle of the extension tube 143 and to the distal end side. The lower fixed nozzle body 144 is an injection unit that jets a jet in a shower shape. The two lower fixed nozzle bodies 144 are provided from the near side to the rear side of the water reservoir 61 so as to cross the water reservoir 61 at a substantially right angle. The lower fixed nozzle body 144 and the lower rotary nozzle body 141 are provided with nozzle small pieces 145 shown in FIG. An injection port 146 is formed in the nozzle piece 145. Lower rotating nozzle body 14
1 is provided with two nozzle pieces 145 each for left and right objects. The number of the nozzle small pieces 145 is not limited to two, and may be more than two. Side and left and right nozzle pieces 145
Are arranged so that the injection ports 146 are arranged sideways and in the opposite direction, so that the lower rotary nozzle body 141 is rotated by the reaction of the washing water jetted from the injection ports 146.

As shown in FIG. 3 and FIG.
The lower rotating nozzle body 141 is located on the left side of 0 and the lower fixed nozzle body 144 is located on the right side. For this reason, the left side area of the cleaning tank 60 is the lower rotary nozzle body 141, and the right side area is the lower fixed nozzle body 144, so that cleaning is covered.

Outlet 130 for upper nozzle of branch pipe 127
As shown in FIGS. 2, 3, 4, 8, 10, and 16, a circulation means 147 provided on the outer surface of the left side of the cleaning tank 60 is provided.
Are connected to communicate with each other. The flow means 147 forms a jet supply flow path, and is formed of a synthetic resin. The inner flow path 148 is divided and formed by two vertically extending partition walls 149 provided on the inner surface of the flow means 147. The outer channel 160 is provided substantially symmetrically on both sides of the inner channel 148. The outer flow path 160 is formed by two vertically extending outer walls 161 provided on the distribution means 147 so as to be outside the partition wall 149. Inner channel 148
Has a length reaching the ceiling 63 of the cleaning tank 60. The outer channel 160 has a length enough to reach the middle stage of the cleaning tank 60. The upper ends of both the inner flow path 148 and the outer flow path 160 are closed. The lower ends of the inner flow path 148 and the outer flow path 160 are formed so as to communicate with each other. The distribution means 147 is attached to the outer surface of the cleaning tank 60. The partition wall 149 and the outer wall 161 are attached and fixed to the outer surface of the cleaning tank 60 by adhesion or welding. Left side 62 of cleaning tank 60
Are provided with two through holes 162. This through hole 16
2 is provided so as to correspond to the upper end side of the inner flow path 148, so that the inner flow path 148
It communicates with.

The upper rotary nozzle body 163 as an injection means for discharging a shower-like jet is shown in FIGS. 3, 18, and 29.
As shown in (1), it is rotatably provided inside the cleaning tank 60. The upper rotary nozzle body 163 is a long tubular rotary body nozzle body, is provided so as to extend in the lateral width direction of the cleaning tank 60, and is provided in plural numbers so as to be arranged in the front-rear direction of the cleaning tank 60. The upper rotary nozzle body 163 includes a plurality of nozzle pieces 145 around a long cylinder. One end of the upper rotary nozzle body 163 is connected to a screw provided on the outer peripheral side of the through hole 162 by a cap nut 164 as shown in FIG.
Is rotatably supported by being screwed. The other end of the upper rotary nozzle body 163 is connected to the support shaft 1 of the right side 62 of the cleaning tank 60.
65 so as to be rotatable.

The upper rotary nozzle body 163 is hollow inside,
An opening provided on the side pressed by the cap nut 164 communicates with the through hole 162. A small hole is provided at the opposite end. When the rotary nozzle rotates, the small hole sprays water from the small hole to form a water film between the small nozzle and the right supporting portion, thereby reducing the friction of the rotary nozzle.

The injection port 146 of the nozzle piece 145 provided in the upper rotary nozzle body 163 is provided so as to be inclined with respect to the radial line. The upper rotary nozzle body 163 is rotated by the reaction of the jet flow jetted from the jet port 146. The two upper rotary nozzle bodies 163 are arranged so as to be substantially parallel at the same middle height. It is also possible to provide more than one.

As shown in FIGS. 2, 3, 4, 5, 6, and 10, a watering member 166 is provided inside the ceiling 63 of the cleaning tank 60 as a jetting means for jetting a shower-like jet. The water sprinkling member 166 is formed of a synthetic resin,
7 is formed. The annular groove 168 is provided with a large number of the nozzle pieces 145.
A water supply groove 169 is formed on the left side of the annular groove 168. The water supply groove 169 is connected to the inner flow path 14 through a through hole (not shown) formed in the left side portion 62 of the cleaning tank 60.
8 communicates with the upper end side. The sprinkling member 166 is detachably attached to the cleaning tank 60 using screws. Watering member 1
Since 66 can be removed and can be cleaned well, it is hygienic and can also suppress the generation of offensive odor.

As described above, the branch pipe 127 connected to the discharge port 124 of the cleaning pump 81 provided in the lower space on one side of the water storage tank 61 is arranged on one side of the cleaning tank 60, and the branch pipe 127 is provided on the lower inside of the cleaning tank 60. The lower rotary nozzle body 141 and the lower fixed nozzle body 144 provided communicate with the lower rotary nozzle body discharge port 131 and the lower fixed nozzle body discharge port 129 of the branch pipe 127, and further discharge the upper nozzle of the branch pipe 127. The flow path means 147 connected so that the lower end thereof communicates with the outlet 130 is vertically arranged along one side of the cleaning tank 60, and the upper rotary nozzle body 163 provided in the middle stage inside the cleaning tank 60 and the upper rotating nozzle body 163 thereon To the watering member 166 provided on the ceiling,
Since the inner channel 148 and the outer channel 160 provided in the channel means 147 are communicated with each other, the channel configuration is simple and compact as a whole, and the dishwasher can be downsized. . In addition to this, as will be described in detail later, a three-stage system including a lower stage cleaning by the lower rotating nozzle body 141 and the lower fixed nozzle body 144, a middle stage cleaning by the upper rotating nozzle body 163, and an upper stage cleaning by the water spray member 166 is adopted. Therefore, the washing water is evenly sprayed on the dishes, so that the washing time is reduced, the power consumption is reduced, and the washing efficiency is improved.

As shown in FIGS. 2, 3, 7, 8, and 18, the blower 180 is provided so as to be dropped into the concave portion 66 of the right side portion 62 of the cleaning tank 60. The blower 180 may be on the left side of the cleaning tank 60. In this case, the concave portion 66 must be provided on the left side, and the arrangement of the cleaning pump 81, the branch pipe 127, the flow path means 147, and the like must be on the left side.

The blower 180 has a blower 181 and a motor 182. The blower 181 has a fan casing and a centrifugal fan. The suction side of the fan casing communicates with the outside of the outer frame 1. A blow duct 183 is connected to the discharge side of the fan casing. The air duct 183 is arranged vertically along the inner surface of the side portion 62 of the cleaning tank 60. The lower end discharge port of the air duct 183 is located near the middle stage inside the cleaning tank 60.

An air path-related configuration including an air blower 180 and an air duct 183, the washing pump 81 and the branch pipe 12
7. Since the jet supply flow path-related configuration including the flow path means 147 is divided into the left and right sides of the cleaning tank 60, air-related and water-related are separated,
The configuration is not complicated as compared with the one provided on one side, and the blower 180 is isolated from the flow path side of the water.

The blower 180 is provided so as to be dropped into the concave portion 66 of the cleaning tank, but extends outside the side portion 62 on the upper side of the concave portion 66. However, the side 62 and the ceiling 63
The front edge of the dishwasher is substantially flush with the outer end of the flange 65 extending outward, so that the width of the dishwasher can be reduced in size. The same applies because the downspout 147 fits substantially flush with the outer end of the flange 65.

The garbage guide plate 184 is shown in FIGS.
6. As shown in FIG. 18, the cleaning tank 60 is detachably provided near the middle part of the inside of the cleaning tank 60. This garbage guide plate 184 is used for cleaning tank 6.
The right half of 0 is partitioned up and down. Residual food falling from above during cleaning is received, and the residual food adhered to the heater 82 is prevented. In addition, it is possible to prevent the garbage sticking to the heater 82 and prevent the garbage from being scorched on the heater 82, thereby preventing the generation of offensive odors and various germs and protecting the heater 82.

The discharge port at the lower end of the blower duct 183 is located above the garbage guide plate 184. A ventilation port 185 is provided in the garbage guide plate 184 at a position where the lower end of the ventilation duct 183 faces, and air is blown from the ventilation port 185 to the heater 82.

The garbage guide plate 184 is supported by a support rib 186 provided on the inner surface of the cleaning tank 60. The notch 187 provided in the garnish guide plate 184 is where the raised portion of the space (c) described above fits.

At the left end on the far side of the garbage guide plate 184,
8 are provided. The tip of the bar 188 is connected to the water tank 6 described above.
1 is located at the step 189 corresponding to the edge of the lower left space. When the garbage guide plate 184 is attached, the upper surface of the lower left space of the water reservoir 61 and the garbage guide plate 184 are arranged at substantially the same height, and the garbage guide plate 184 is provided.
A hole for the length of the bar 188 is formed between the left end of the left side and the right end of the lower left space. The filter 200 for collecting garbage is installed so as to cover this pit opening. The garbage collection filter 200 is provided detachably from the outside of the washing tank. The filter 200 for collecting garbage can be taken in and out through the recess 40 of the front panel 26 and the notch 69 of the water tank 61 described above.

The garbage collection filter 200 is made of synthetic resin or the like, and has a frame 202, a handle 201, and a net 203.
Having. The handle portion 201 is provided with a recess for hanging a finger. The upper surface of the garbage guide plate 184 and the lower left space is inclined toward the garbage collection filter 200 so that the garbage collection filter 200 is located at the lowest position. For this reason, the garbage and the washing water together with the residue guide plate 1
The garbage is collected by the garbage collection filter 200 while flowing through the upper surface of the lower space 84 and the lower left space. Cleaning pump 8
1 and the washing water sucked into the drainage pump 84 include:
Since no residual vegetables are included, the pump runner does not lock due to foreign matter.

Inside the washing tank 60, a lower basket 210 and an upper basket 211 for storing tableware are provided. Both the lower cage 210 and the upper cage 211 are formed by assembling steel wires or the like in a lattice shape. The surface of the steel wire or the like is sufficiently coated with a synthetic resin or the like.
The two lower baskets 210 are shown in FIGS. 3, 18, 23, and 25.
As shown in (1), it is installed above the lower rotary nozzle body 141 and the lower fixed nozzle body 144. The front end of the lower basket 210 is rotatably supported by a hinge 212 on a side 62 of the cleaning tank 60. For this reason, the lower basket 210 is
It can rotate around 2 as a fulcrum and can be taken in and out of the washing tank. A guide rod 213 is provided below the lower basket 210, and a guide roller 214 that receives the guide rod 213 from below is provided on the cleaning tank 60 side. The rotation of the lower basket 210 is the guide rod 2
Since it is supported from below by the guide roller 214 and the guide roller 214, a stable rotation operation can be achieved, and the basket itself can be prevented from being deformed by the weight of the tableware.

When the guide bar 213 and the guide roller 214 are not provided, the lower basket 210 may be pulled out so as to be placed on the upper surface of the opened lower door 6 as shown in FIG.

At the lower part of the lower basket 210, a tray 215 which can be pulled out is provided. The receiving tray 215 is slidably supported by a guide pipe 216 provided below the lower basket 210. FIG. 25A shows a state in which the tray 215 is stored, and FIG. 25A shows a state in which the tray 215 is pulled out. The tray 215 is provided on the lower basket 210 on the left side as shown in FIG.
Can also be provided.

5, 6, 12, and 13.
As shown in FIG. 18, a chopstick basket 217 and a cup vertical are provided.
FIG. 24 shows another embodiment, in which a chopsticks basket 218 is provided in a space between both lower baskets 210.

The left lower basket 210 on the lower rotary nozzle body 141 and the right lower cage 210 on the lower fixed nozzle body 144 are provided so as to have a step. The lower basket 210 on the right side is placed at a lower position by the lower fixed nozzle body 144 located lower than the lower rotary nozzle body 141. Therefore, the lower basket 21 on the right side
0 can hold a relatively large tableware, and two lower baskets 2
The tableware of various sizes can be washed using the 10.

The upper basket 211 is provided above the upper rotary nozzle body 163 as shown in FIG. This basket 2
Numeral 11 is provided in the cleaning tank 60 so as to be freely drawn out as shown in FIGS. Support guides 230 slidably supporting the bottom of the upper basket 211 are provided on both sides 62 of the cleaning tank 60. The support guide 230 has an inclined portion 231 that is lowered toward the near side and a horizontal portion 232 that extends horizontally toward the far side. The upper part of the upper basket 211 is slidably supported by a stopper guide 234. This stopper guide 234
Are also provided on both sides 62 of the cleaning tank 60.

When the upper basket 211 is pulled out, as shown in FIG.
The table moves from the horizontal portion 232 to the inclined portion 231 and is inclined forward, so that tableware can be easily taken in and out. At this time, upper basket 2
Guide 234 for stopper which guides the upper part of 11
Is secure because the upper cage 211 is locked at its upper end to prevent the upper cage 211 from falling.

When the upper basket 211 is pushed back, as shown in FIG. 26A, the upper basket 211 moves to the horizontal portion 232 of the support guide 230 and becomes flat. We can wash tableware which we store.

The lower basket 210 includes a lower rotary nozzle body 141.
And the lower fixed nozzle body 144 and the upper rotary nozzle body 16
It is placed so that it is sandwiched between 3. The upper basket 211 is placed between the watering member 166 and the upper rotary nozzle body 163. Tableware stored in either of the baskets is washed with shower-like washing water sprayed from above and below, so that there is no washing unevenness and the washing time is shortened.

The aforementioned lower door 6 is shown in FIG.
It is opened and closed as shown in FIG. The hinge 240 supporting the opening and closing of the door 6 is provided with a helix spring 241. One end of the helix spring 241 fitted on the shaft of the hinge 240 is locked to the door 6 side, and the other end is locked to the outer frame body 1 side. Since the force of the helical spring 241 is provided in a direction to close the door 6, the door 6 does not fall down to the state shown in FIG. 27B at once by its own weight when the door 6 is opened. It is safe. In addition, hinge 240 applies the force of helical spring 241.
As a result, the door 6 is held in an appropriate open state due to friction and the like.

The above description has mainly described the embodiments of the present invention mainly in terms of the configuration.

Next, an embodiment of the present invention will be described in terms of operation.

First, the dishes to be washed are set in the upper / lower baskets 211 and 210. The operation is started by operating the operation plate 30 and instructing the operation. Water supply solenoid valve 83
Opens and water is supplied. The water level of the washing water stored in the water tank 61 is detected by the water level sensor 193, and when the water level reaches a predetermined water level, the water supply electromagnetic valve 83 is closed and the water supply is stopped. Subsequently, the heater 82 is energized to heat the water in the reservoir 61, and when the temperature reaches a predetermined temperature, the cleaning pump 81 is turned on.
To start the cleaning operation. The water in the water storage tank 61 is sucked into the cleaning pump 81 via the branch water tank 85, pressurized by the cleaning pump 81, and sent to the branch pipe 127. The branch pipes 127 divide the flow in three directions toward the injection means.

One flow is ejected from the lower rotary nozzle body 141 via the lower rotary nozzle body discharge port 131. Another flow is the lower fixed nozzle body discharge port 12.
9 and is ejected from the lower fixed nozzle body 144. The remaining flow flows into the distribution means 147. Distribution means 147
The water that has flowed into the internal flow path 148 and the external flow path 1
60, the flow of the external flow channel 160 is jetted from the upper rotary nozzle body 163 as a jet flow,
Is ejected from the sprinkling member 166.

The tableware set in the lower basket 210 is
Lower rotating nozzle body 141 and lower fixed nozzle body 144
It is washed well from both the upper and lower sides by a shower-like jet that jets upward from the nozzle and a shower-like jet that jets downward from the upper rotary nozzle body 163.

The tableware set in the upper basket 211 is
As described above, the water is washed from both the upper and lower sides by the shower-like jet jetting upward from the upper rotary nozzle body 163 and the shower-like jet jet downward from the water sprinkling member 166, so that it is well washed.

FIG. 30 is a schematic view of a shower-like jet jetting from the lower rotary nozzle body 141, the lower fixed nozzle body 144, the upper rotary nozzle body 163, and the water sprinkling member 166. Is washed more than enough.

The upper rotary nozzle body 163 is provided with upper and lower cages 2.
11 and 210 are arranged between the upper surface of the lower cage 210 and the lower surface of the upper cage 211 so that they can be washed together. Since one basket is also used for cleaning two baskets, the configuration is simplified and the size is reduced. In addition, since the upper rotary nozzle body 163 rotates, the shower-like jet is evenly applied to the tableware, so that washing unevenness is reduced. In addition, since the upper rotary nozzle body 163 has a length that covers the width of the washing tank 60 and is provided so as to be lined up and down, a shower-like jet can be jetted across the washing tank 60 before and after the washing tank 60. Can be reduced. Further, the two upper rotary nozzle bodies 163 have different rotation directions, so that the washing unevenness is further reduced. In particular, in the rotation inward when viewed from below, the dishes in the lower basket are showered from the front and the back, so that the washing unevenness is further reduced.

After performing the above-described cleaning operation for a predetermined time, the cleaning pump 81 is stopped, and the drainage pump 84 is operated. The water in the water tank 61 is drained out of the machine by a drain pump 84 via a branch water tank 85. When drainage of the washing water is completed, the drainage pump 84 is stopped, and the water supply electromagnetic valve 83 is opened again to supply water. When the water is supplied to the predetermined water level, the water supply electromagnetic valve 83 is closed, and the cleaning pump 81 is operated without being heated by the heater 82 to perform the rinsing operation. The dishes in the upper and lower baskets are evenly rinsed with the jet flow from the shower similar to the washing operation.

Further, rinse with warm water. This hot water rinsing is substantially the same as the previous rinsing, except that the cleaning pump 81 is operated after the water accumulated in the water reservoir 61 is heated by the heater 82.

After rinsing with hot water, the cleaning pump 81
Is stopped, and the drainage pump 84 is operated to drain water. After draining, the heater 82 is energized and the blower 180 is operated to perform a drying operation. The air sucked in from the outside is sent into the water storage tank 61 through the air duct 183 by the blower 180, and flows into the water storage tank 61 below the vegetable guide plate 184 from the ventilation port 185 of the vegetable guide plate 184, where it is used for heating. Heated by the heater 82. The heated air passes through the net 203 of the residue collecting filter 200 and rises in the cleaning tank 60. In this rising process, the heated air deprives the tableware stored in the upper and lower baskets of water and is exhausted from the exhaust port 48. When the drying operation is stopped after a lapse of a predetermined time, all the steps from washing to drying are completed. Thereafter, the residue collecting filter 200 is pulled out from the outer frame body 1 to remove the residue adhering to the net portion 203, and the residue collecting filter 200 is reset to prepare for the next use.

[0068]

According to the present invention, a dishwasher with less washing unevenness can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of a dishwasher according to an embodiment of the present invention.

FIG. 2 is a part view showing the disassembled parts of the dishwasher according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a dishwasher according to an embodiment of the present invention, showing the dishwasher from the front.

FIG. 4 relates to an embodiment of the present invention,
It is A sectional drawing.

FIG. 5 relates to an embodiment of the present invention,
It is B sectional drawing.

FIG. 6 relates to an embodiment of the present invention,
It is C sectional drawing.

FIG. 7 relates to one embodiment of the present invention, and corresponds to FIG.
It is D sectional drawing.

FIG. 8 relates to one embodiment of the present invention, and corresponds to FIG.
It is E sectional drawing.

FIG. 9 relates to one embodiment of the present invention,
It is F sectional drawing.

FIG. 10 relates to one embodiment of the present invention, and corresponds to G of FIG. 3;
It is -G sectional drawing.

FIG. 11 relates to one embodiment of the present invention, and corresponds to H of FIG.
It is -H sectional drawing.

FIG. 12 relates to one embodiment of the present invention, and corresponds to I in FIG.
FIG. 2 is a sectional view taken along the line I.

FIG. 13 is a partially enlarged view of an embodiment of the present invention and corresponding to the JJ cross-sectional view of FIG. 11;

14 is a partially enlarged view corresponding to a cross-sectional view taken along line KK of FIG. 11, according to one embodiment of the present invention.

FIG. 15 is a partially enlarged view corresponding to a cross-sectional view taken along the line JJ of FIG. 11 and showing a state in which a water supply electromagnetic valve and a drainage pump are removed, according to one embodiment of the present invention.

FIG. 16 is an enlarged view showing a related configuration including a cleaning pump, a water storage tank, a distribution tank, a branch pipe, a lower rotary nozzle body, and the like according to the embodiment of the present invention.

FIG. 17 is an enlarged view of a single cleaning pump according to one embodiment of the present invention.

FIG. 18 is an enlarged view showing a related configuration including a blower, a ventilation duct, and the like according to the embodiment of the present invention.

FIG. 19 is a partially enlarged view showing a related configuration of a back plate and a base plate according to an embodiment of the present invention.

FIG. 20 is an enlarged view of an ejection member according to one embodiment of the present invention.

FIG. 21 is an enlarged perspective view of the lower part of the front surface of the dishwasher according to one embodiment of the present invention.

FIG. 22 is a perspective view showing the inside of the dishwasher with the door opened according to the embodiment of the present invention.

FIG. 23 is a plan view showing a stored state of the car according to the embodiment of the present invention.

FIG. 24 is a view according to another embodiment of the present invention.
FIG.

FIG. 25 is a perspective view showing a basket according to the embodiment of the present invention.

FIG. 26 relates to one embodiment of the present invention, and is a view for explaining how a car is put in and out.

FIG. 27 relates to one embodiment of the present invention, and is a view showing an opening and closing operation of a door.

FIG. 28 is a view illustrating a helical spring for a door according to an embodiment of the present invention.

FIG. 29 is a view related to one embodiment of the present invention, showing a state where an upper rotary nozzle body is removed.

FIG. 30 is a view illustrating a cleaning operation according to the embodiment of the present invention.

[Explanation of symbols]

Reference numeral 60: cleaning tank, 61: water tank, 81: cleaning pump, 1
63: Upper rotating nozzle body.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Soichi Sano 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside Hitachi Taga Electronics Co., Ltd. (72) Ryoichi Kobayashi 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture No. 1 Inside Hitachi Taga Electronics Co., Ltd. (72) Inventor Toshiyuki Moriya 1-280 Higashi Koigakubo, Kokubunji-shi, Tokyo F-term in Hitachi, Ltd. Design Research Laboratory (reference) 3B082 BL02 BL03

Claims (3)

[Claims] 1. A dishwasher provided with a washing tank, a water tank provided below the washing tank, and a washing pump, wherein a tubular rotary nozzle body extending across the width of the washing tank is placed in front of and behind the washing tank. A dishwasher, wherein a plurality of washing dishes are arranged in a row in a direction, and washing water is supplied from the washing pump to the rotary nozzle body. 2. The dishwasher according to claim 1, wherein the rotation directions of the rotary nozzles are different from each other. 3. The cleaning tank according to claim 1, wherein the rotary nozzle body is provided in a middle stage of the washing tank, and an injection unit for injecting washing water to a ceiling side and a bottom side of the washing tank is provided. And dishwasher.