JPH04200430A - dishwasher - Google Patents

Abstract

PURPOSE:To increase and efficiently wash tableware received in a washing machine by constituting a lower cage for receiving the tableware such that the bottom is inclined stepwise, or partially or as a whole. CONSTITUTION:Different sized dishes 16-16b are inclined and sequentially in parallel received in a lower cage 10 having the bottom formed step-wise, and bowls 17, cups 18, etc., are received in an upper cage 15 within a washing tank 1. A circulating pump 5 is driven and pressurized washing water 4 is supplied through a discharging pipe 7 to a lower nozzle 8 which is rotated horizontally while jetting the washing water 4 to wash the dishes 16-16b. On the other hand, a portion of the washing water 4 in the discharging pipe 7 its supplied to un upper nozzle 13 which is rotated while jetting the washing water 4 from a jet 14 to wash out stains from the bowls 17, cups 18, etc., in the upper cage 15. Since different sized dishes 16, 16a, 16b are received in the lower cage 10 with the upper ends being arranged at nearly equal height the water jetted from a jet 9 of the nozzle 8 strikes directly the stained surface of the dish to improve the efficiency of washing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dishwasher for washing tableware.

[Conventional technology] Washing water is pressurized using a circulation pump, etc., and is sprayed from multiple injection holes provided in a nozzle.The spraying pressure is used to rotate the nozzle and spray the washing water all over the cleaning tank. However, a dishwasher that cleans tableware in a washing tank is well known.

An example of such a dishwasher is shown in FIG. In the figure, (1) has an opening (1a) on the entire surface.
), (2) is the bottom plate of the cleaning tank (1), (3
) is provided on the bottom plate (2), and is connected to a circulation pump (5) which will be described later.
(4) is the cleaning water supplied to the cleaning tank (1). (5) is a circulation pump that pressurizes the washing water (4) and sprays it from the injection hole provided in the nozzle described later to wash tableware, (6) is its suction pipe, and (7) is its discharge pipe. be. (8) is the discharge pipe (7
) is rotatably attached to a lower nozzle having a plurality of injection holes (9), which injects wash water (4) pressurized by a circulation pump (5) and rotates by the reaction force of the injection.

(10) corresponds to the lower nozzle (8) and is a lower basket that can be freely taken in and taken out from the opening (1a), and mainly stores dishes (16), (16a), and (16b) of different sizes. (1
1) is an extension pipe connected to the discharge pipe (7), and is rotatably attached to the upper basket (15), which mainly stores tea bowls (17) and cups (18), and which can be freely put in and taken out from the opening (1a). A circulation pump (5) is used to supply water to the upper nozzle (13) which has a plurality of injection holes (14). ) Pressure water is sent from (20) is a door whose one end is pivoted to the opening (1a) of the cleaning tank (1).

In the above-mentioned dishwasher, mainly dirty dishes (16), (16a) of different sizes.

The lower basket (10) containing (16b) and the bowl (17)
The upper basket (15) containing the water and pots (18) is placed into the cleaning tank (1) through the opening (1a), the power is turned on and water is supplied, and then the cleaning water (4) is heated using a heater (not shown). ) and drives the circulation pump (5) to suck up and pressurize the cleaning water (4). The pressurized cleaning water (4) flows through the injection holes (9) and (14) provided in both nozzles (8) and (1B).
The injection pressure causes both nozzles (
8) and (13) are the cleaning water (
4) Rotate while spraying. As a result, the lower basket (1
0) and tableware (16) stored in the upper basket (15),
The washing water (4) can be evenly sprayed onto (16a), (16b), (17), and (18), and the dirt attached to the tableware (16) to (18) can be washed away by this spray. I can do it. The washing water (4) sprayed onto the tableware (16) to (18) is passed through a filter (3) to a circulation pump (
5).

In a dishwasher like the one mentioned above, efficiency (dishware (1
In order to perform the washing steps 6) to (18), it is necessary to effectively spray the washing water (4) onto the dirty surface, and to efficiently wash as many tableware (16) to (18) as possible. In order to do this, it is necessary to arrange the tableware (16) to (18) at intervals and spray the washing water (4) directly onto the soiled surface from below. For this reason, tableware (16) ~ (
18) are stored in a lower basket (10) and an upper basket (15).
), and the nozzle for spraying the cleaning water (4) is also composed of a lower nozzle (8) and an upper nozzle (13), with both nozzles (
10), (15) are connected by the discharge pipe (7) and the extension pipe (11), each car (10), (15)
The structure is such that cleaning water (4) is sprayed from below.

FIG. 5(b) shows the lower basket (10
) Dishes of different sizes (16) to (16b)
) is a front view showing how the washing water (4) is sprayed on the plates (16) to (1).
6b) are placed side by side with their lower ends aligned, so each plate (16) can be accessed from the gap between each plate (16) to (16b).
- (16b) are sprayed with water (4).

[Problem to be solved by the invention] Since the conventional dishwasher is configured as described above,
When storing or pulling out the lower basket (10) into the cleaning tank (1), do not insert the lower basket (10) in order to avoid the extension pipe (11).
Therefore, it is necessary to provide a notch in which the tableware (16) to (18) cannot be placed in the tableware (16) to (18).
8) There was a problem in that it was not possible to store a large number of items.

In addition, since the plates (16) to (16b) of different sizes housed in the lower basket (10) are arranged with their lower ends aligned, the air from the injection hole (9) of the lower nozzle (8) In order to directly and effectively apply the water jet to the dirty surface, it is necessary to arrange the containers at an angle and to increase the gap between each container.
Also from this point of view, many tableware items (16) to (18) could not be stored.

Furthermore, the water supply port (12) of the upper nozzle (13) and the extension pipe (
11), a gap g must be provided between the opening of the circulation pump (4) and the opening of the circulation pump (4). The washing water (4) from 5) is not sufficiently supplied to the upper nozzle (1B) side, and the tableware (17) in the upper basket (15)
, (18) cannot be washed well.

The present invention has been made to solve the above problems, and is a dishwasher that has high cleaning efficiency, can store and wash a large number of dishes, and can supply a sufficient amount of washing water to the upper nozzle. The purpose is to seize the opportunity.

[Means for Solving the Problems] In the dishwasher according to the present invention, at least the bottom of the lower basket is configured to have a step-like shape or a part or all of it is sloped.

Further, the nozzle corresponding to a cage whose bottom is formed in a step-like shape or partially or entirely in an inclined shape is inclined to correspond almost to the shape of the bottom of the cage.

Furthermore, an upper nozzle which has a water supply pipe and is rotatably attached to the upper basket, and one end of which is connected to the discharge pipe and passes outside the cleaning tank, and the other end is connected to the outer wall of the cleaning tank in opposition to the water supply pipe of the upper nozzle. It has a branch water supply pipe connected to a water supply port fixed to the top, a lower part is pivoted to the washing tank, and an upper part has a locking part that locks to the washing tank, and a pressing piece is provided on the back corresponding to the upper basket. It is equipped with a closed door.

[How it works: If you store large dishes in the deep part of the basket and small dishes in the shallow part with a narrow gap between each other, align the tops of the containers in approximately the same position, and spray the cleaning water from the nozzle, the cleaning water will be is sprayed directly onto the dirty area of the dish.

Furthermore, by slanting the nozzle to approximately correspond to the shape of the bottom of the basket, cleaning efficiency can be further improved.

Further, when tableware is stored in the upper basket and the lower basket, placed in the washing tank, and the door is closed, the pressing piece of the door pushes the upper basket and connects the water supply pipe to the discharge pipe.

As a result, the washing water that is force-fed from the discharge pipe through the water supply branch pipe is jetted out from the upper nozzle and washes the tableware in the upper basket.

Embodiment of the Invention FIG. 1 is a longitudinal sectional view of an embodiment of the invention. Note that the same or equivalent parts as in the conventional example explained in FIG. 6 are denoted by the same reference numerals, and the explanation thereof will be omitted. In the figure, (10) is a lower basket, and in this example, the bottom is formed in a stepped shape, and each plate (
16) - (16b) are tilted from 5 degrees to 30 degrees and supported by supports (not shown), and the lower basket (10) is stored in the order of large plates from the deep part, and each plate (16) - (16b) is
The upper ends of the two are arranged at approximately the same height. Note that this lower basket slides along lower guide plates (not shown) provided on both side walls of the cleaning tank (1), and opens in the opening (1a).
) so that it can be taken in and out. (20) is a door attached to the opening (1a) of the cleaning tank (1) with a hinge (21), and the upper end is attached to the opening (1a) of the cleaning tank (1).
) is attached to the latch (22), and an L-shaped pressing piece (
23) is provided. = (24) is the upper nozzle (13) explained in the conventional example in Fig. 6.
A branch water supply pipe corresponding to an extension pipe (11) for supplying washing water (4) to the tank, one end of which is connected to the discharge pipe (7) and extends along the outer wall outside the washing tank (1). After that, the other end is connected to the discharge port (25) provided on the rear wall of the cleaning tank (1).
) is connected to. (13) is a large number of injection holes (14)
The upper basket' (15) is located below the upper basket (15).
) is rotatably attached to the upper nozzle, (28) is the water supply pipe of the upper nozzle (13) attached to the upper cage (15) by the holder (26) and the fixture (27), and (29) is the water supply pipe This is a water supply port provided at the end of the water supply pipe (28) facing the outlet (25). In addition, the upper basket (15) has an upper nozzle (
13), along with the water supply pipe (28), can be taken in and out from the opening (1a) along upper guide plates (30) provided on both side walls of the cleaning tank (1).

Next, the operation of this embodiment will be explained. First, the mouths and necks (16) to (16b) of different sizes are sequentially arranged side by side in a lower basket (10) whose bottom is formed in a step-like shape at an angle of, for example, 5 to 30 degrees, and then placed in an upper basket (15). Tea bowl (17), Kotop (1
8) etc. and house them in the cleaning tank (1),
Close the door (20) and lock it with the latch (22). At this time, the pressing piece (23) provided on the door (20) presses the upper basket (15) backward, causing the discharge port (25) and the water supply pipe (
8) and the water supply port (29) to form a series of water channels (see Figure 3).

Then, the power is turned on and cleaning water (4) is supplied from a water supply device (not shown) into the cleaning tank (1). - When a fixed amount of water is supplied, the heater (not shown) is energized and the cleaning water (4) is supplied.
At the same time, the circulation pump (5) is driven to suck up and pressurize the cleaning water (4). The pressurized cleaning water (4) is supplied to the lower nozzle (8) through the discharge pipe (7), and is directed from the plurality of injection holes (9) toward the dirty surfaces of the necks (16) to (16b). Injected. This injection pressure causes the lower nozzle (8
) rotates horizontally while spraying cleaning water (4), and the mouth and neck (
16) to (16b) are washed.

On the other hand, a part of the cleaning water (4) in the discharge pipe (7) is transferred to the branch water supply pipe (24), the discharge port (25), the water supply port (29), and the water supply pipe (28) in red to the upper nozzle (13). ), and the upper nozzle (13) rotates while spraying cleaning water (4) from the injection hole (14) to remove dirt from the bowls (17), cups (18), etc. in the upper basket (15). Wash. In addition, the lower nozzle (8
) and a plurality of injection holes (9) provided in the upper nozzle (13),
(14), at least one of each has a lower nozzle (
8) and the upper nozzle (13) are oriented in a predetermined direction in order to smoothly rotate them.

In the present invention configured as described above, FIG. 5(a)
Dishes (16) of different sizes as shown.

(16a) and (16b) are stored in the lower basket (10) so that their upper ends are in almost the same position, so the water jetted from the injection hole (9) of the nozzle (8) directly stains the dish. Since it hits the surface, cleaning efficiency can be increased, and the spacing between the dishes can also be narrowed compared to conventional methods.

FIG. 2 shows another embodiment of the present invention. In this embodiment, the lower nozzle (8) is set at θ (in the embodiment This arrangement is arranged at an angle of 5 degrees to 30 degrees, and by configuring it in this way, the efficiency of cleaning the mouth and neck can be further improved.

FIG. 3 shows still another embodiment of the present invention, in which the bottom of the lower basket (10) is tilted to one side (
In the example, the lower nozzle (8° to 30°) is configured.
) are placed almost parallel to this bottom.

Furthermore, FIG. 4 shows another embodiment of the present invention. In this embodiment, the bottom of the basket (10) is shallow in the center, and the periphery is inclined to become deeper, so that the bottom of the basket (10) is almost mountain-shaped. At the same time, the lower nozzle (8) is inclined at an angle of α from the center to the periphery to form a substantially V-shape, and the cleaning water (4) is sprayed at right angles to the inclination angle a. .

In this embodiment, a small plate (16) is placed in the center of the lower basket (10), and large plates (16), (16) are placed around it.
b) are arranged almost vertically and are rotated while jetting the cleaning water (4) from the injection hole (9) of the nozzle (8), so that the cleaning water (4) does not directly hit the dirty surface of the dish. It can be sprayed to efficiently clean dirt.

[Effects of the Invention] In the dishwasher according to the present invention, at least the bottom of the lower basket is configured in a step-like manner or partially or completely sloped, so that dishes of various heat sensitivities can be stored with their upper portions approximately aligned. I can do something. This allows the washing water sprayed from the nozzle to be sprayed directly onto the dirty surface of the dishes, making it possible to wash them efficiently.Furthermore, since the space between the dishes can be narrowed, it is possible to increase the number of dishes that can be stored.

Furthermore, since the nozzle is inclined to approximately correspond to the shape of the bottom of the basket, cleaning efficiency can be further improved.

Furthermore, a branch water supply pipe is provided, one end of which is connected to the discharge pipe, passes outside the washing tank, and the other end is connected to the discharge port fixed to the outer wall of the washing tank, and when the door is closed, the upper nozzle attached to the upper basket can be opened. Since the water supply pipe is connected to the discharge port to supply washing water to the upper nozzle, there is no need to provide a notch in the lower basket for passing the extension pipe, and a large number of tableware can be stored.

In addition, the water supply pipe of the upper nozzle attached to the upper car is connected to the water supply port by closing the door, so there is no leakage of cleaning water (necessary and sufficient cleaning water is supplied to the upper nozzle, You can use tableware as a battlefield.

[Brief explanation of the drawing]

1 to 3 are side sectional views of embodiments of the present invention, FIG. 4 is an explanatory diagram showing main parts of another embodiment of the present invention, and FIG. 5(a) is an explanatory diagram of the operation of the present invention. , (b) is an explanatory diagram of the operation of a conventional dishwasher, and FIG. 6 is a side sectional view of an example of a conventional dishwasher. In the figure, (1) is the cleaning tank, (1a) is the opening, (3
) is the filter, (4) is the cleaning water, (5) is the circulation pump,
(7) is the discharge pipe, (8) is the lower nozzle, (9), (14)
is the injection hole, (10) is the lower cage, (13) is the upper nozzle, (
15) is the upper basket, (16), (16a), (16b) is the plate, (20) is the door, (21) is the hinge, (22) is the latch, (23) is the pressing piece, (24) is the branch Water supply pipe, (2
5) is a discharge port, (28) is a water supply pipe, and (29) is a water supply port. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) An upper basket and a lower basket that store tableware and are housed in a washing tank, which are respectively disposed below the upper basket and the lower basket and rotate while spraying washing water to wash the tableware. 1. A dishwasher equipped with an upper nozzle and a lower nozzle for washing, characterized in that at least the bottom of the lower basket is configured in a step-like manner or partially or entirely inclined. (2) Claim (1) characterized in that the nozzle corresponding to the cage whose bottom is formed in a step-like shape or partially or entirely in an inclined shape is inclined to substantially correspond to the shape of the bottom of the cage. ) Dishwasher safe. (3) An upper basket and a lower basket that store tableware and are housed in the washing tank, which are respectively disposed below the upper basket and the lower basket and rotate while spraying washing water to wash the tableware. In a dishwasher equipped with an upper nozzle and a lower nozzle for washing, the upper nozzle has a water supply pipe and is rotatably attached to the upper basket; a branch water supply pipe that passes through the outside and has its other end connected to a discharge port fixed to the outer wall of the cleaning tank opposite to the water supply pipe of the upper nozzle; and a lower part that is rotatably pivoted to the opening of the cleaning tank. 1. A dishwasher comprising: a door having a locking portion at the top for locking to the washing tank, and a door having a pressing piece on the back surface corresponding to the upper basket.