JPH07116102A - Dishwasher - Google Patents

Abstract

PURPOSE:To improve washing capability of a dishwasher with relatively small capacity of a build-in type either to place on the worktop of a system kitchen unit or to integrate into a system kitchen-unit. CONSTITUTION:A dishwasher comprises a central nozzle 15 installed on a arm nozzle 8 to inject washing weater to a concave, curved reflection board 9, having a blade to give rotation power to the reflection board 9 and a projection to change reflection angles.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to dishwashers.

[0002]

2. Description of the Related Art A conventional dishwasher is disclosed in, for example,
As described in Japanese Patent No. 41903, the cleaning tank top plate is provided with a substantially circular reflector having a diameter larger than that of the fountain arm nozzle, and the reflector disperses the water diffused from the water spray hole that opens obliquely upward. There was one that improved the cleaning action on the dishes that are reflected outward and are located near the side wall of the cleaning room. Further, there is known a dishwasher (see, for example, Japanese Utility Model Laid-Open No. 2-55864) in which the ceiling of the washing chamber is formed with an uneven surface so that the washing water from the jet nozzle is reflected by the uneven surface and dropped substantially directly below. Has been.

[0003]

However, in the built-in type relatively small capacity dishwasher which is placed on the worktop of the system kitchen or incorporated in the system kitchen, the height dimension is limited. Therefore, it was difficult to use the fountain arm nozzle on the top plate. In addition, a method of providing a concavo-convex surface on the ceiling of the washing room and dropping the condensate almost directly below cannot obtain a sufficient sprinkling speed, and the direction of the washing water reflected by the concavo-convex surface may vary depending on the location of the washing room. , The directions were almost the same, and the effect that the washing water was applied to the tableware from multiple directions could not be obtained.

[0004]

DISCLOSURE OF THE INVENTION A dishwasher according to the present invention has an arm nozzle for jetting washing water upward in a lower portion of a washing tank, and receives a jet pressure water blown up from the arm nozzle on a top plate. In order to disperse the washing water from above onto the dishes stored in the dish basket in the washing tank, a rotatable reflector plate is provided to reflect the jetted pressure water by changing the reflection angle depending on where it is reflected. Is characterized by.

[0005]

[Function] The reflector installed on the top of the washing tank reflects the jetted water at different angles, so that the washing water collides against the dishes from all directions and the jetted water sprayed from the jet arm nozzle is sprayed. Since it receives and rotates, the pressure jet water spreads to every corner of the washing chamber, and the dishes in the tank can be washed almost uniformly.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. The dishwasher 1 has a box-shaped outer frame 2. A tableware storage tub 3 is arranged in the outer frame 2, and a step portion 3a is provided at a lower part of a side wall of the tableware storage tub 3 provided with a door 4 for opening and closing a front opening thereof, and the stepped portion 3a serves as a guide rail.
A tableware storage basket 5 having wheels is arranged so as to be freely drawn out. A washing pump 6 is arranged below the bottom of the tableware storage tank 3. The pump 6 is driven by a motor 7. An injection arm nozzle 8 that rotates in a horizontal plane with the center as a fulcrum is arranged immediately below the tableware storage basket 5. The ejection arm nozzle 8 has a plurality of small holes on its upper surface. The table 5 for storing dishes is provided with a guide pipe 14 for guiding the wash water sent from the pump 6 to the reflector 9. Although a heater is arranged at the bottom outside the tableware storage tank 3, its illustration is omitted. A control panel 10 is arranged above the outer surface of the door 4. Next, this dishwasher 1
The cleaning, rinsing, and drying operations of will be described. First, in the washing operation, the water supply solenoid valve 11 is energized, and when the water supply reaches a predetermined position, the water supply solenoid valve 11 is closed, the dish water is supplied to the dish storage tank 3, and the heater and the pump motor 7 are energized. .
The pump 6 is rotated by the operation of the motor 7, and the tableware storage tank 3
Water is sucked in from the water reservoir 12 arranged at the bottom, pressured water is supplied from the pump discharge port 13 to the jet arm nozzle 8 and the guide pipe 14, and is jetted from the guide pipe 14 to the reflection plate 9. By directly injecting pressured water from the hole of the ejection arm nozzle 8 to the tableware storage basket 5 above, the dirt adhering to the tableware is removed and dispersed. At this time, the jet arm nozzle 8 rotates and jets the pressure water over the entire circumference. After washing for a certain period of time, the pump motor and the heater are de-energized to terminate the washing, and the drainage pump is energized to drain the washing water in the dish storage tank 3 out of the machine.
Next, the rinsing operation is performed several times in the same operation as the cleaning operation.
At this time, the heater is not energized and the rinse operation is not performed. Next, in the drying operation, the blower unit is energized to rotate the blower fan to supply the wind into the tableware storage tank 3 through the airflow duct and the heater arranged at the outer bottom of the tableware storage tank 3. At this time, the heater is The constant energizing time is turned on and off to make the cold air warm. With this warm air, water drops and residual water adhering to the tableware storage tank 3 and water drops adhering to the tableware stored in the tableware storage basket 5 are converted into steam, and discharged from the exhaust duct to the outside of the machine. It After a certain period of time, the drying operation ends and the operation of the dishwasher 1 ends. Next, the reflector will be described. As shown in FIG. 1, a rotatable reflecting plate 9 is provided above the tableware storage tank 3. The reflecting plate 9 receives the jet water on the beam which is jetted from the central nozzle 15 of the jet arm nozzle 8 provided in the lower portion of the tableware storage tank 3 and has passed through the guide tube 14, and obtains a rotational force by its water pressure, Sprinkle water on the tableware storage basket 5. The detailed structure of the reflector 9 is shown in FIGS. The reflector 9 of FIG. 2 has a concave spherical shape as a whole, and has radial blades 16 on the concave side. One surface 16a of the blade is formed on a straight line in the radial direction toward the center, the opposite surface 16b is formed as a curved surface having an angle with respect to the surface 16a, and all the blades are arranged at equal intervals. ing. Therefore, the jetted water that has collided with the center of the reflector 9 flows between the blades in the process of fully spreading over the entire surface of the reflector, and the jetted water in contact with the surface 16b gives the counterclockwise rotational force in FIG. . The spray angle is shown in Figure 2.
Adjustment is performed by the protrusions 17a to 17c in (b). In the detailed shape of the reflector shown in FIG. 3, the shape of the blade 18 is similar to that of FIG. 2 (c) and a rotational force in a fixed direction is obtained, but the spray angle is adjusted by the angle adjusting plate 1.
Adjust according to 9. For details, see 20a to 20c in FIG. 2 (b).
Shown in.

[0007]

INDUSTRIAL APPLICABILITY The present invention is a dishwasher having a relatively small capacity which is placed on the worktop of a system kitchen having a limited height dimension or incorporated in the system kitchen for use. The plate is equipped with a reflector plate that receives the spray pressure water blown up from the arm nozzle and freely rotates to spray the cleaning water from above onto the tableware stored in the dish basket in the cleaning tank. It does not require a large space like the above, and further enhances the cleaning power on the upper surface of the dishes by falling water over the top, compared to the conventional compact dishwasher that does not have a sprinkling mechanism above the washing tank. In addition, the cleaning time can be shortened.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a dishwasher showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a reflector.

FIG. 3 is an explanatory view of a reflector according to another embodiment of the present invention.

[Explanation of symbols]

3 ... tableware storage tank, 5 ... tableware storage basket, 8 ... injection arm nozzle, 9 ... reflector, 14 ... guide tube, 15 ... central nozzle,
16 ... feathers.

Claims (1)

[Claims] 1. A washing tank having an opening on the front surface for storing dishes to be washed, a door that covers the opening of the washing tank and can be opened and closed, and a sprinkler that is provided below the washing tank and opens obliquely upward. A rotatable arm nozzle provided with a hole, a pump for pressurizing and supplying the cleaning water in the cleaning tank to the arm nozzle, and a concave spherical reflection member rotatably provided substantially at the center of the top plate of the cleaning tank. A plate, including a central nozzle provided in the arm nozzle for ejecting washing water toward the reflecting plate,
A dishwasher, wherein the reflecting plate is provided with a blade that gives a rotating force to the reflecting plate by collision of reflected water, and a protrusion that changes a reflection angle.