JPS62261323A - Tablewear washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a dishwasher, and particularly to a dishwasher that has high cleaning efficiency and can reduce the amount of water used.

(Prior Art) FIG. 5 is a cross-sectional view of an example of a conventional dishwasher having the same function as the dishwashing apparatus disclosed in, for example, Japanese Patent Application Laid-Open No. 61-8023. In the figure, 1 is the main body of the dishwasher, 2 is a washing tank disposed inside the main body 1, and 3 is a washing pump that circulates washing water in the washing M2, which is rotationally driven by a motor 4. The washing water is supplied to the heater 12.
This turns water into hot water. Also, 5 is a drain hole, 6 is a cleaning nozzle, 7 is a dish basket, 8 is a door, 9 is a drain pump, 1
0 is the control circuit, 22 is its switch,! 1 is an electromagnetic water supply valve, 13 is a drying heater, 14 is a top plate, and 19.20 is a water supply port and a drain port, respectively.

Next, the main points of operation will be explained. Table 1 shows the operational sequence flow of the conventional dishwashing apparatus disclosed in the cited Japanese Patent Application Laid-Open No. 61-8023.

Table 1 First, in FIG. 5, a certain amount of water is supplied by the electromagnetic water supply valve 11, heated by the beater 12 to make hot water, the cleaning water is force-fed by the cleaning pump 3, and is sprayed from the cleaning nozzle 6. , the dishes stored in the dish basket 7 are washed, and after a certain period of time has elapsed, the operation of the washing pump 3 is stopped, and the drain pump 9 is operated to drain the dirty water (hot water) to the outside of the machine.

Furthermore, the same process as above is repeated to rinse the tableware. Moreover, after that, the tableware in the basket 7 is naturally dried using the drying heater 13 which is connected to the II control circuit 10. That is, as shown in Table 1, rinsing step 1 is performed prior to the washing step, and during the whole process, this rinsing step is performed from rinsing 1 to rinsing 4, for a total of 4 rinsing steps.
I went there twice.

[Problem that the invention seeks to solve]

However, because conventional dishwashers are configured as described above, for example, when attempting to wash dishes that have been left indoors for about 30 minutes with cooked rice, etc. attached to the inside and outside of the dishes, the first rinsing In Step 1 (Table 1), the problem that the glue from cooked rice adhered to the outer surface of the tableware in a film form did not come off well because it was not sufficiently exposed to water.

This invention was made in view of the above-mentioned problems, and allows dirt to be removed more efficiently before the washing process, while reducing the amount of water used. The aim is to provide dishwashers that can

[Means for solving problems]

For this reason, in this invention, a means is provided in the cleaning step 111 to allow soaking for a predetermined period of time, and furthermore, this washing water for soaking is once collected and reused for the next washing step. By structuring the site in this way, we aim to achieve the purpose of the museum.

[Effect]

With the above configuration, dirt can be removed more efficiently prior to the cleaning process, and the amount of hot water used can be reduced by reusing the cleaning water.

(Examples) The present invention will be described below based on Examples. FIG. 1 shows a sectional view of an embodiment of a dishwasher according to the present invention. Components that are the same or equivalent to those of the conventional example shown in FIG. 5 are indicated by the same reference numerals. Further, FIG. 2 is a block circuit diagram of this embodiment. 5 (Configuration) In Figure 1, 1 is the main body of the dishwasher, which includes a door 8 and a top plate 1.
It constitutes the product together with 4. Inside thereof, a washing tank 2 is disposed and can accommodate one tableware basket 7 and store washing hot water. A water level detection switch is attached to one end of the cleaning tank 2, and an integrally formed drain hole 5 is provided at the bottom.
A cleaning nozzle 6 is provided at the drying heater 13 and at the center of the bottom surface.

Also, wash NI! A recovery tank 15 is disposed on the rear side of the recovery tank 2, and the top end is connected to a drainage switching valve 18 via piping.
Moreover, the bottom end is connected to the middle of a pipe connecting the water supply electromagnetic valve 16 and the water supply switching block l-17.

The cleaning nozzle 6 is connected to a cleaning pump 3 driven by a motor 4 at the lower outside of the cleaning tank 2, and the cleaning pump 3 is further connected to a water supply switching block r17 via piping. l-17 is connected to the water supply [119] via the water supply electromagnetic valve i16. The water supply switching valve 17 is also connected to the I)1 water hole 5, and is connected to the drainage pump 9 in the middle thereof. Furthermore, the drain pump 9 is connected to the water basin 20 via the JJI water switching valve 18Q.

On the other hand, a control circuit 10 is provided at the bottom of the main body 1, and a switch 22, a water level detection switch, etc. are connected thereto.

(Operation) Next, the operation in the above configuration will be explained. Table 2 shows the operational sequence flow of this embodiment.

First, in Table 1 and FIG. 1, water introduced through the water supply port 19 passes through the water supply solenoid valve 16 and the water supply switching valve 17, and is stored in the washing WIz from the drain port 5. The amount of water is kept constant at a predetermined appropriate amount by the water level detection switch 21, and overflow water is removed from the overflow drain hole 2.
3, and then drained from the drain port 20.

Thereafter, the soaking process begins, and after completion, the drain pump 9 is operated through the drain hole 5, the drain switching valve 18 is turned off, and the drain is stored in the recovery tank 15. When water is supplied for the next cleaning step, a certain amount of water in the recovery tank 15 is guided to the cleaning pump 3 via the water supply switching valve 17.

During the washing process, water sprayed from the washing nozzle 6 washes the dishes, returns to the washing pump 3 through the drain hole 5, through the water supply switching button 17, and repeats the cycle of water sprayed from the washing nozzle 6. The water is drained from the drain hole 5 through the drain pump 9 and the drain switching valve e18, and then from the drain port 20.

Furthermore, the above washing process is repeated, but when the water supply from the recovery tank 15 runs out, water is supplied from the water supply port 19 and the dishes are rinsed (rinse 1 to 3). At 10, a controlled drying heater 13 performs natural drying to dry the dishes in the basket 7.

Table 2 shows the above operation sequence, the water supply solenoid valve 16,
Each operation of the water supply switching valve 17 and the drainage switching valve 18 is shown.

(Other Embodiments) In the above embodiments, water flows through the overflow drain hole 23 that drains water that overflows during soaking and washing, which results in wasted water. , Fig. 3 shows an example of the revision. This figure is an improved view of FIG. 1, in which a water saving cover 24 is attached to a part of the JJ8 above the water level detection switch 21 so as to cover the overflow drain hole 23 when viewed from above.

Figure 4 shows the actual cleaning process with the above configuration.
It is an explanatory view showing the trajectory of water inside cleaning M2.

25 indicates the trajectory (flying line) of water, and a portion of the water coming out of the cleaning nozzle 6 is reflected on the side wall and ceiling of the cleaning tank 2, and a portion of it adheres to the door 8 and flows along the door surface. Although the water flows down, it passes through the water-saving cover 24 and accumulates at the bottom of the washer 12. By this warping, the overflow drainage hole 2
The amount of water flowing out from 3 is significantly reduced, resulting in a water saving effect.

Furthermore, in the first embodiment, the washing water was simply stored in the washing tank 2 in the soaking washing process, but the motor 4 was operated at low speed by one-phase control, duty control, etc. Activate the cleaning pump 3 and clean the cleaning nozzle 6.
Alternatively, low-velocity water may be jetted from the container to generate a water flow that does not dislodge the tableware from the heel 7.

(Effects of the Invention) As described above with reference to Examples J and T, according to the present invention, a soaking and washing process is performed prior to the washing process, and the washing water ( Since the system is configured so that hot water (hot water) is once collected and reused in the washing process, it is possible to improve the efficiency of washing dishes and reduce the amount of water used for toilet use.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the dishwasher according to the present invention, FIG. 2 is a block circuit diagram thereof, FIG. 3 is an improvement example of FIG. 1, and FIG. Water trajectory explanatory diagram in Figure 3, No. 5
The figure is a sectional view of an example of a conventional dishwasher. 1...Main body 2---Washing machine 6...Washing nozzle 7...Dish basket 10...Control circuit 15...・Recovery tank 17 ・------Water supply 9J switching valve 18------Drainage switching button 19... Water supply 11 20...) Non-water I"

Claims (2)

[Claims] (1) In a dishwasher equipped with a built-in dish basket and a washing tank for washing dishes by spraying washing hot water from a washing nozzle, prior to a washing process in which washing water is sprayed from the washing nozzle. A dishwasher characterized by being configured to perform a soaking process in which washing water is temporarily stored in the washing tank and left for a predetermined period of time. (2) disposing a recovery tank within the main body of the dishwasher;
The washing water stored in the washing tank in the soaking and washing step is drained into the recovery tank after the soaking and washing step is completed, and the washing water is reused in the subsequent washing step. A dishwasher according to claim 1, characterized in that: