JPS6052817B2 - dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dishwasher, and more particularly to an improvement in a dishwasher that can wash tableware such as plates and bowls by arranging them vertically so that they can be washed by intermittently supplying and draining water.

BACKGROUND OF THE INVENTION Various types of dishwashers have been put into practical use, but for home use, a shower system that sprinkles water on tableware is popular.

The shower method has the drawback that the shape of the tableware varies, and that water cannot be sprayed on areas that are shaded on the opposite side of the water spraying direction.

In order to alleviate this drawback, a structure is known in which tableware is stored one by one in a predetermined frame within the washing machine, but it is difficult to store the tableware.

In addition, the shower system has drawbacks such as the fact that the shower pipe extends horizontally, so it occupies a large area and is large in size.Moreover, since the shower is used to wash tableware, it generates a lot of noise such as jetting noise and impact noise. This invention was made in order to solve the above-mentioned drawbacks, and includes a water stop storage tank for washing, and the water in and out of the storage tank is intermittently flowed in and out for washing.
To provide a dishwasher that washes dishes by creating a condition in which a so-called washing person repeatedly puts the dishes in and takes them out.

In other words, in order to create a situation in which the washer repeatedly puts dishes in and out of the washing machine, deep-bottomed dishes such as rice bowls must be placed vertically, otherwise they will not be placed horizontally. If the dishes are simply stacked, the water accumulated in the dishes will move less on the surface of the dishes, and the effect of the above-mentioned condition will be insufficient.

Therefore, the present invention aims to maintain the arrangement of dishes when they are placed vertically to be washed. According to the present invention, in order to achieve the above object, an anti-slip sheet is provided on the bottom of the washing basket disposed inside the washing basket.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal cross-sectional view, partially shown in side view, for explaining the structure of the dishwasher of the present invention. That is, 1 is an outer frame whose upper and lower parts are open, and a dishwashing tray 2 housed in the outer frame 1 is held in the upper opening 1a of the outer frame 1. A plurality of overflow ports 3 are provided in the upper circumferential wall of the washing sink 2, and a water flow port 4 is provided in the bottom wall thereof. A gutter 5 is provided on the upper outer peripheral wall of the washing basin 2 to drain water overflowing from the overflow port 3.
A washing basket 23 is disposed within the washing basket 2, and anti-slip sheets 24 and 27 are laid on the bottom surface of the washing basket 23, as shown in FIGS. 3 and 4. Note that the details of the sheets 24 and 27 will be described later.
A base 6 is press-fitted into the lower opening 1b of the outer frame 1, and a water storage tank 7 and a pump 8 are placed on the base 6.
An overflow pipe 9 is connected between the gutter 5 and the water storage tank 7, and allows overflow water from the washing tank 2 to flow into the water storage tank 7. A cone-shaped water regulating pipe 11 is connected to the outlet 4, and this water regulating pipe 1
A branch pipe 12 is connected to the lower end of the pipe 1. Branch pipe 12
One branch end 11a is connected to an outflow valve 12 using an electromagnetic valve 12, and is connected to the water storage tank 7 via an outflow pipe 13. The other branch end 11b is connected to a discharge port (not shown) of the pump 8, and the suction port 8a is connected to the lower part of the water storage tank 7 via an inflow pipe 14. A drain pipe 16 is connected to the bottom wall of the water storage tank 7 via a drain valve 15 to drain the water in the water storage tank 7. Outer frame 1
A control device 18 for intermittently stopping the operation of the outflow valve 12 and the pump 8 for a predetermined period of time is provided in a control box 17 provided at the top of the pump. This device uses almost the same structure (not shown) as the timer of a fully automatic washing machine.
There is. That is, when the operating knob 19 is set to a desired time, the time switch is turned on and the knob 19 attempts to return to its original position. At this time, a two-contact changeover switch is alternately operated at predetermined intervals using a cam (not shown) attached coaxially with the knob. Switch intermittently. When one contact is connected, the pump 8 is connected to the power source 12, and when the other contact is connected, the pump 8 is connected to the outflow valve 12 and the valve is opened. FIG. 2 shows an example of the control circuit. That is, reference numeral 20 is a commercial power source connected to a home, and intermediate terminals of a time switch 21 and a two-contact changeover switch 22 are connected to this power source 20. One switching terminal 22a is connected to the power source 20 via the pump 8, and the other switching terminal 22b is connected to the power source 20 via the outflow valve 12. Although the water supply for washing is not shown in the drawings, it can be supplied from anywhere other than the drain pipe 16, so its position is not particularly shown. Next, tableware and tableware anti-slip sheets 24 and 27 will be described with reference to FIGS. 3 and 4.

In each figure, the same parts as in FIG. 1 are given the same symbols. FIG. 3 shows an example in which a sponge-like plastic sheet is used as a tableware anti-slip sheet.

In the figure, 23 is the wire washing basket body and the first tableware K-
1 are appropriately arranged and hung vertically. In this case, as shown in the figure, the lower edge K-1 of the first tableware K-1
-1 is fixed by biting into the tableware anti-slip sheet 24 due to its weight. (25 is a rigid plastic sheet that becomes the base of 24.) Next, the second tableware K-2 is placed almost parallel to the first tableware K-1, as shown in the figure. Similarly, the lower edge K-2-1 bites into the anti-slip sheet 24 and is fixed. The third tableware 2-3 is leaning against the second tableware K-2 with a feeling that it is slightly out of parallel, but its lower edge K-3-1 is also biting into the anti-slip sheet 24. is fixed. The fourth tableware K-4 has a different tilt from the third tableware K-3, but it is also the third tableware K-4.
While leaning against tableware K-3, the lower edge of tableware K-3
4-1 is fixed by biting into the seat 24. Next, Fig. 4 shows an example in which a plastic sheet 27 having appropriate needle-like protrusions 26 provided on its entire surface is used as a tableware anti-slip sheet. The size is about 10?).

In the figure, 23 is a washing basket main body on which the first tableware K-1 is vertically leaned. In this case, as shown in the figure, the lower edge K-1-1 of the first tableware K-1 is pushed against the group of needle-like protrusions 26 provided on the surface of the anti-slip sheet 27 due to its own weight. It is fixed by biting in (the needle-like protrusion 26 is flexible and can be pressed and bent appropriately at the lower edge of the tableware). Next, the second tableware K-2, the third tableware K-3, and the fourth tableware K
-4, etc. are attached to the lower edges of each tableware K-2-1, K-3-1, K as shown in the figure, as in the case of the sponge-like plastic anti-slip sheet in Figure 2.
-4-1 appropriately presses and bends some of the groups of needle-like protrusions 26 that are in contact with them, bites into them, and is fixed respectively. Although a rice bowl is shown as an example of tableware in FIGS. 3 and 4, any tableware may be used, except for extremely small and lightweight ones such as ``Sakazuki''.

Further, in each of the figures, the first tableware K-1 is shown leaning against the washing basket main body 23 with its outer bottom surface facing the washing basket main body 23, but this may be completely reversed. In other words, the upper periphery of the rice bowl may lean against the washing basket body 1. In addition, in the case of tableware whose diameter does not change, such as some types of teacups, the tableware itself can be laid down on the non-slip sheet 3-1, so there is no need to lean it against the washing basket body 1. In the anti-slip sheets with the above two configurations, when tableware is actually placed in the water tank, the first tableware may be arranged first, or a plurality of tableware may be arranged in groups.

In any case, when using such a non-slip sheet, the lower edges of the tableware easily bite into the sheet under their own weight and are fixed, making it very easy to stack the tableware vertically. , it becomes possible to overlap them even more densely. In addition, whether it is the sponge-like plastic shown in Figure 3 or the plastic with needle-like protrusions on the surface shown in Figure 4, there is no directionality in the anti-slip effect within the plane of each sheet, so how do you handle tableware? You can arrange them in any direction you like. In these examples, a non-slip sheet is spread over the entire bottom of the washing basket, so water is not poured directly into the water tank from the water outlet shown in Figure 1, but from around the non-slip sheet. However, in this type of dishwasher there is no need to project a stream of water directly onto the dishes, so the washing water can come from anywhere.

However, if there is a risk that rice grains, vegetable scraps, etc. may remain on the anti-slip sheet, holes may be made in the anti-slip sheet at appropriate locations. The operation of a dishwasher having such a structure will be explained. First, as shown in FIG. 1, tableware is sorted by type, such as curry plates K and bowls G, in the basket 23 of the washing machine 2 and arranged vertically and laterally. Then, the drain valve 15 is closed. Pour washing water (tap water only or water with an appropriate detergent mixture) into the water reservoir 7. When the appropriate amount of wash water has been supplied, turn the operating knob 19 to close the time switch 21 and connect the two-contact switch 22 to one switching terminal 22a, the outflow valve 12 will be closed and the pump 8 will be closed.
is driven. Thereby, the washing water in the water storage basin 7 flows into the washing basin 2 from the water outlet 4 provided in the bottom wall of the washing basin 2. The inflowing water passes between the vertically arranged tableware and the horizontally arranged dishes for washing.The water level rises at the top, and the washing water overflows from the overflow port 3, passes through the gutter 5, and washes from the overflow pipe 9. Let's save water and go back to 7. After this operation has been carried out for a suitable period of time, the two-contact switch 22 is switched to the other switching terminal 22b, and the pump 8 is stopped and the outflow valve 12 is opened. The water in the washing can 2 flows down from the inlet 4 through the branch pipe 11 and the outflow pipe 13 and returns to the water storage can 1. Such operations are alternately performed an appropriate number of times. During this time, when the time switch 21 is turned off, these actions stop, and at this point the drain valve 15 is opened to drain all the washing water from the drain pipe 16 to the outside of the washing machine. As is clear from the above-mentioned operation, according to the dishwasher of the present invention, the washing water is alternately supplied and drained in the washing basin 2, so that the dishes themselves are immersed and taken out of the washing water. You can obtain the same condition as the washing method.

Therefore, the washing water will not leak all over the tableware, resulting in incomplete washing, and there is no need for a structure in which the tableware is placed one by one in a predetermined frame. It has a cleaning effect.

Furthermore, as explained earlier, according to the present invention, the lower edges of the tableware do not slip, so it is possible to easily prevent water from accumulating on the tableware and causing it to stop moving, and a sufficient cleaning effect can be obtained. It will be done.

Moreover, since it is necessary to arrange tableware of various shapes, and since there is no directional gate for the anti-slip sheet effect, the anti-slip effect can be achieved even when tableware is arranged in any direction. In addition, since the plastic sheet does not contain water, it has the advantage that it can be easily transferred to the drying process. j
Further, modified examples and applied examples of the present invention will be explained.

In the example shown in FIG. 3, a sponge-like plastic sheet is used, but it may of course be a plastic sheet with the same softness as a sponge. In this case, the problem of disposing of water contained in the sponge-like plastic sheet during the drying process is improved. Although the surface is shown to be flat, it is possible to improve the anti-slip effect by appropriately roughening the surface of both the sponge sheet and the plastic sheet. Ordinary cotton (natural and synthetic) can also be used in view of its sheet-like construction. Alternatively, a cotton-like sheet made of elastic metal fibers may be used. In this case, drainage is good and heat resistance can be exhibited in the heat drying process. Next, in the example shown in FIG. 4, the sheet having needle-like protrusions is made of plastic, which has advantages such as a non-slip effect and no water absorption, apart from heat resistance.

As a heat-resistant modification, elastic metal fibers may be planted on a heat-resistant stand (think of something similar to a wire brush for tools). In other words, it is possible to use a plastic needle-like protrusion shown in Fig. 4 made of several thin elastic metal fibers (even in the case of plastic needle-like protrusions, the thickness, shape, density, etc., depend on the tableware). It is necessary to modify them as appropriate so that the effect appears depending on the content of the class.

) The effect of heat resistance can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of a dishwasher according to the invention, FIG. 2 is a circuit diagram showing an example of a control device for a dishwasher according to the invention, and FIGS. 3 and 4 are main points of the invention. FIG. 1 is the outer frame, 2 is likely to be washed, 3 is the overflow port, 4 is the drain port, 5
is a gutter, 6 is a base, 7 is a water storage tank, 8 is a pump, 9 is an overflow pipe, 11 is a branch pipe, 12 is an outflow valve, 13 is an outflow pipe, 14
15 is an inflow pipe, 15 is a drain valve, 16 is a drain pipe, 17 is a control box, 18 is a control device, 19 is an operation knob, 20 is a power source, 2
1 is a time switch, 22 is a two-contact switch, 23 is a washing basket, and 24 and 27 are anti-slip sheets.

Claims (1)

[Claims] 1. For washing, it has a water outlet at the bottom and an overflow outlet at the top.
A washing basket installed inside this washing basket, a non-slip sheet placed on the bottom of this basket to maintain the orientation of dishes by arranging them vertically, and an overflow pipe installed in the above-mentioned overflow port. A pipe connected to the water storage tank via a solenoid valve to one of the branch parts connected to the water outlet, and a pipe connected to the water storage tank via a pump to the other branch part. A dishwasher comprising connected piping and a control device that alternately and intermittently switches the operation of opening and closing the solenoid valve and driving and stopping the pump for a predetermined period of time.