JPS63119730A - Tableware washing machine - Google Patents

Abstract

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

Description

[Detailed description of the invention] (b) Industrial application field FIELD OF THE INVENTION The present invention relates to dishwashers.

Conventional Technology Dishwashers equipped with a rotating washing nozzle arm at the bottom of the washing tank are well known, and the central part of the rotating washing nozzle arm is used as a pump cage, and a pump impeller is disposed within this casing. The dishwasher was also developed in 1986-1344.
It is well known from Publication No. 72. However, these conventional examples
A food residue reservoir is disposed at the bottom of the cleaning tank, and the cleaning water spouted from the rotary cleaning mechanism passes through the residue reservoir and is then guided back to the rotary cleaning mechanism for circulation.

Therefore, the subsequent rinsing step is carried out with the food residue collected in the residue reservoir in the first step, and the washing water in the rinsing step becomes dirty, making it impossible to perform a clean rinse. Another disadvantage is that the filter in the residue reservoir becomes clogged, reducing the water supply capacity of the cleaning pump that supplies water to the rotary cleaning mechanism.

(c) Problem to be Solved by the Invention The present invention provides a dishwasher that can perform one clean rinse without reducing the water supply capacity of the pump even when residue is collected in the residue reservoir. The purpose is to provide

(d) Means for Solving the Problems The dishwasher of the present invention includes a washing chamber having a washing machine, a rotary washing mechanism provided in the washing machine, a washing tank, and a water absorption part of the washing mechanism. A residue reservoir is disposed between the cleaning chamber and the water absorption section, and a valve body is provided between the washing chamber and the water absorption section, and the valve body is closed during the washing process and opened during the rinsing process. It is characterized by having a bypass passage that bypasses the section.

(e) During the functional washing process, the valve body is closed, so the washing water jetted out from the rotary washing mechanism washes the dishes, falls into the washing tank together with food residue, and flows into the residue storage section. The residue is removed by the filter in the residue storage section, and only the washing water passes through. This cleaning water is sucked in again from the water absorption part of the cleaning mechanism and used for circulation, and is finally discharged to complete the cleaning process.

After that, the process moves to the rinsing process, and new washing water is supplied.
On the other hand, since the valve body opens, the washing water spouted from the rotary washing*#I hits the dishes and rinses them, and then flows directly from the washing tank to the water absorption part of the washing mechanism through the bypass passage and passes through the residue storage part. It can be used repeatedly without any problems.

Embodiment (1) is a stationary tableware; the main body case of the washing machine has an upper opening, and has a bottom plate (3) of a washing machine (2).
) It has a lower passage part (4) below. (5) is a case lid made of translucent synthetic resin that rests on the upper opening of the main body case (1) so that it can be opened and closed, and forms a cleaning chamber (6) together with the cleaning machine (2).

(7) is a residue reservoir part with an upper opening protruding from the outside of the main body case 1), in which the filter 8) is removably housed, and the side surface located on the upper blade of the filter (8) is attached to the bottom of the main body case 1). The upper portion of the face plate (3) communicates with the side opening (9), and the bottom portion communicates with the lower passage portion (4). (10) is a rotating door that is pivoted to open the side opening (9) only outwardly, and normally hangs down due to its own weight to close the side opening (9), allowing the washing water in the washing tank (2) to It opens only when the residue flows into the residue reservoir (7).

(11) is a rotary cleaning mechanism disposed in the cleaning tank 2〉, which is rotatably supported by a rotary shaft (12) protruding from the bottom plate (3〉) and the rotary shaft (12). , a rotating cleaning nozzle arm (14) that rotates while spouting cleaning water from nozzle holes (13) provided above, and the cleaning tank (
2) It consists of a cleaning pump (15) which is placed at the bottom and sends cleaning water to the rotating shaft <12), and the water intake port (16) of the pump (15) is located at the bottom of the oil plate. It has a communication opening with the passage section (4).

(17) is a bypass hole opened in the bottom plate (3), and functions as a bypass passage that directly communicates the washing machine (2) and the lower passage section (4>).

(18) is a valve body that closes the bypass hole (17) so as to open and close the bypass hole (17), and is pivotally supported on the opening edge of the bypass hole (17), and is further closed on the opposite side from the shaft support. has been extended. When the valve body (18) is opened, the closure M (19) comes into contact with the upper end of the partition wall (4a) of the lower passage section (4) and passes through the residue storage section (7). It functions to prevent water from being sucked into the water intake port (16). (20) is a valve operation part for operating the valve body (18), and the cylinder cylinder (21) protrudes into the lower passage part (4).
), and a pressing rod (2) that moves vertically within the cylinder tube (21) and presses the valve body (18) upward.
a piston (23) with a piston (23);
) and a coil spring (24) that urges the piston (23) downward.
) is provided with a water inlet (25) that opens to No. 5 when the valve moves upward. The cylinder cylinder (21) is a water supply valve (26)
It is connected to a water faucet via a water supply hose (not shown), and when tap water pressure is applied, the piston (23) moves upward to open the valve body (18) and open the cleaning tank (2).
The cleaning water inside flows directly into the lower passage section (4) without passing through the residue reservoir section (7).

Moreover, (27) is a drain pipe provided in the lower passage part (4),
(28) is an overflow tube provided protruding from the bottom plate (3), and (29) is a heater. Furthermore, (30) is a tableware rack installed in the washing room (6),
@ Place tableware (31) such as plates and bowls.

With the above configuration, cleaning water is supplied into the washer (2) from the water supply port (25) (see Fig. 2, B). Heater (2
At the beginning of this washing process, the washing water is heated to a predetermined temperature at step 9) and the washing process begins. At the start of the washing process, the washing water has reached the specified water level, so the water supply fF (26) is closed, and therefore the piston (23 ) is located below, and the valve body 18) closes the bypass hole (17). Therefore, in the washing process, the nozzle hole (13) of the rotating washing nozzle arm (14)...
After washing the tableware (31), the washing water spouted from the tableware (31) drops into the washing tank (2) together with food residue, opens the rotating door (10), flows into the residue reservoir (7), and filters into the filter 8. After the residue has been removed at
) is sucked into the washing pump (15) and used again for circulation (see Figure 2 (b)). After washing the dishes for a predetermined period of time,
The washing water is drained from the drain pipe (27) and the washing process is completed.

The process then moves on to the rinsing process, and at the beginning of this rinsing process, the water supply valve (26) is opened to supply washing water. At this time, the piston (23) is moved upward by the water pressure of the tap water and opens the valve body 18 (see Figure 2 (a)). In this state, before the cleaning water reaches the specified position, the cleaning pump (1
When 5) is activated, the washing water that is ejected rinses the dishes (31) and then falls into the washing tank (2), forming a bypass passage that flows directly into the lower passage 4) through the bypass hole (17). Even if the specified amount of water is reached and the water supply valve (26) is closed, the piston (23) will simply fall and the valve body (18) will remain open (see Figure 2 (c)), so the rinsing process will be interrupted. In this case, the cleaning water is directly led from the cleaning tank (2) to the lower passage part (4) without passing through the residue storage part (7), and the cleaning water becomes contaminated by the residue attached to the filter (8). The filter (
8) is clogged, the water supply capacity of the washing pump (15) is not reduced and the dishes (31) can be perfectly rinsed.

Subsequently, in the final rinsing step, after once draining the washing water, the water supply valve (26) is opened to supply new washing water.Then, as before, the valve body (18) is lifted by the rise of the piston (23). Opened and washed with 11 tons of washing water as above.
A flow path is created that flows directly from (2) to the lower passage section (4). In this final rinsing step, the water supply valve (17) is held open and rinse water is supplied while rinsing, so that the rinse water is poured into the overflow cylinder (28).
Drain from the drain, or perform what is called an overflow rinse (see Figure 2 (d)).

After the final rinsing process is completed, the process moves to a drying process in which the heater (29) is activated, and ends after a predetermined time to complete the entire process.

By the way, the residue reservoir (7) is provided outside the washing chamber (6), and the residue generated during the washing process is collected by the filter (8) in the residue reservoir (7), and the residue is collected by the filter (8) inside the residue reservoir (7). I
It does not accumulate in the I chamber (6), so even if the residue rots and generates a bad odor during the drying process or the subsequent storage of the dishes, for example in the summer, the bad odor will not adhere to the dishes after washing, and the dishes will be kept sanitary. can be maintained.

In this embodiment, the water pressure of the tap water was used to move the piston 23 of the valve operating section (20). It may be moved by electric means such as a magnet.

(G) Effects of the Invention According to the present invention, in the first rinsing step after the washing process, the washing water passes through the bypass passage and does not pass through the residue reservoir, so that the washing water is not contaminated with residue. Also, the pump's water delivery capacity will not be reduced due to filter clogging. Therefore, a dishwasher that can clean dishes can be obtained.

[Brief explanation of the drawing]

The drawings all relate to embodiments of the dishwasher of the present invention; Fig. 1 is a partially sectional side view, Fig. 2 is a sectional view for explaining the operation of the main part, (a) is a diagram of the water supply state, and (b) is a diagram of the water supply state. Washing process section (c)
(d) is a diagram of the rinsing process, and (d) is a diagram of the final rinsing process. (2>...Cleaning tank, (6)...Cleaning chamber, (7)...
・Residue reservoir, (8)...Filter, (14)...
・Rotating cleaning nozzle arm, (16)...Water intake port, (
17)...Bypass hole, (18)...Valve body. Applicant Sanyo W, Ki Co., Ltd. (1 other person) Agent Patent attorney Takuji Nishino (1 other person) Figure 2 (c) (20

Claims (2)

[Claims] (1) A cleaning chamber having a cleaning tank, a rotary cleaning mechanism provided in the cleaning tank, and a residue reservoir disposed between the cleaning tank and the water absorption part of the cleaning mechanism and removably housing a filter. and a valve body provided between the washing chamber and the water absorption part, which closes during the washing process and opens during the rinsing process,
A dishwasher comprising a bypass passage that bypasses the residue storage section. (2) The dishwasher according to claim 1, wherein the residue reservoir is provided outside the washing chamber.