JPH03212253A - Dish washer - Google Patents

Abstract

PURPOSE:To perfectly clean tableware free from odor by allowing a dish washer to be equipped with a water purifying device for purifying the water of a water supply as rinsing water. CONSTITUTION:A hot water storage device 24 is equipped with a heater 25 and makes rinsing hot water and stores the water, and a rinsing pump 26 pressurizes the rinsing hot water and sends out the hot water. A selector valve 45 is connected with the rinsing pump 26 through a piping 46, and a water cleaner 47 is connected between one outlet of the selector valve 45 and the hot water storage device 24 through pipings 47A and 47B, and purifies water through filtration. The water of a water supply is supplied into the cleaned hot water storage device 24 through the rinsing pump 26 and the purifier 47, and the heater 25 electrically conducts, and heats the supplied water to about 80 deg.C. The selector valve 45 operates, and pipings 46 and 47A communicate, and the rinsing pump 26 is operated. The purified hot water in the hot water storage device 24 is supplied into rinsing pipes 34 and 35 and a water spray pipe 37. Further, a rinsing pump 29 is operated, and the rinse in a rinse tank 28 is sucked and mixed with the hot water in a piping 48. Tableware is sufficiently rinsing-washed by the purified hot water, and the superior finishing is secured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device for washing tableware by spraying washing hot water onto the same.

[Prior Art] As shown in, for example, Japanese Utility Model Publication No. 61-35175, a conventional dishwasher is provided with a cleaning nozzle and a rinsing nozzle in a box body, and the washing nozzle is applied to tableware stored in the box body. The device is configured to spray washing hot water from the rinsing nozzle for cleaning, and then spray rinsing water from the rinsing nozzle for rinsing and drying.

[Problems to be Solved by the Invention] In the conventional dishwasher as described above, tableware that has been washed with washing water is rinsed with rinsing water that has been heated with tap water. When tap water is used, there is a problem in that odors remain on the tableware even after rinsing, making it impossible to obtain a satisfactory cleaning result.

This invention was made to solve the above problems, and an object of the present invention is to provide a dishwasher that can completely wash tableware without leaving behind odors after rinsing.

[Means for Solving the Problems] A dishwasher according to the present invention is provided with a water purifier that purifies tap water used for rinsing.

[Function] In this invention, hot water obtained by purifying and heating tap water is used as the rinsing water, so that the rinsing sprue rod does not contain any odor or the like.

[Embodiment] Figures 1 to 11 are diagrams showing an embodiment of the present invention, in which Figure 1 is a front view (lower section) excluding the door, Figure 2 is a side view, and Figure 3 is a side view of the door. FIG. 4 is an enlarged perspective view of the lock mechanism portion, FIG. 4 is an explanatory diagram of the operation of FIG. 3, FIG. 5 is an enlarged side sectional view of the door switch portion, FIG. The figure is an enlarged side sectional view of the tableware basket swinging mechanism, FIG. 8 is an enlarged perspective view of the air supply port, and FIG. 9 is an enlarged plan view of the exhaust port.
FIG. 10 is a sectional view taken along the line X--X in FIG. 9, and FIG. 11 is a piping diagram.

In the figure, (1) is a box body, and an opening (1a) is formed in the upper half of the front surface. (2) is a door that is made to have the same width as the front surface of the box (1) and closes the opening (1a), and has a hinge (3) fixed to the lower edge of the opening (1a) of the box (1). ) to the door (2
) The door (2) is pivotally attached to the box body (1) at its lower edge by inserting a pin (4) fixed to the lower edge of the door (2). (5) is a handle that is fixed to the upper edge of the door (2) and consists of a longitudinal member with a cross-sectional shape, and in its internal space there is a plate-shaped hanging piece (6) and a hanging piece (6). A push spring (7) that presses the central part of the door (7) downward is housed, and the end of the locking piece (6) is inserted into the hole (3) set in the box body (1) and provided in the door (2). (2a) is adapted to engage with the head of the door lock bin (8) through which it is inserted. (9) is a door switch that is fixed to the upper part of the box (1) and engages with the upper weave of the door (2) to confirm the opening and closing of the door (2); (10) is a head (10a
) and the other end is a support rod that is pivotally connected to the door (2) through the support hole (11) in the front of the box (1), (12) is the support rod that is connected to the box (1)
It is a basket for storing tableware (not shown) to be washed, and has a protruding bar (12a) on the negative side and a rail ( 13). (14) is a motor that is fixed to one side of the box (1) and rotates the eccentric cam (15), and (16) is installed inside the door (2) and faces the protruding rod (12a) of the car (12). A push spring (18) is a cleaning tank with an inclined bottom and is located below the opening (1a) of the box body (1), and protrudes downward from the lowest part of the bottom. It has four parts (18a). (19) is the recess (18
The operating rod (19a) that protrudes upward is fixed in the groove stored in a), and the length of the operating rod (19a) is such that it protrudes 3 to 5 cm from the hot water surface when the washing tank (18) is full. It is set. (20) is a heater installed in the cleaning tank (I8), (21) is a cleaning pump installed at the bottom of the box (1) and sends out cleaning water, and (22) is a cleaning tank (18). ) is a switching valve connected to the fourth part (18a) of the heater (
25) A hot water storage machine that produces and stores rinsing water, (26)
A rinsing pump that increases the pressure of rinsing water and sends it out, (27)
is an accumulator that absorbs the pressure of the rinse pump (26), (28) is a rinse tank that stores rinse to improve the drying finish after rinsing, and (29) is a suction unit for a fixed amount of rinse in the rinse tank (28). (30) is an air pump that pumps air; (31) is a switching valve that switches between rinsing water and air;
(32) is a plurality of cleaning tubes arranged on the upper part of the box body (1) and has a cleaning nozzle (32a) on the lower surface; (33) is a cleaning tube that is also arranged below and has a cleaning nozzle (33a) on the upper surface; 34) is a rinse tube which is also arranged above and has a rinsing nozzle (34a) on the lower surface; (35) is a rinsing tube which is also arranged below and has a rinsing nozzle (35a) on the upper surface; and (36) is also arranged above. The water supply pipe (37) has a water supply nozzle (36a) on the lower surface, and the water supply pipe (37) is also arranged in one line downward, has a water spray nozzle (37a) on the upper surface, and is supported in the center by a bearing (38) and is configured to be rotatable in a horizontal plane. (39) is the valve connected to the water pipe (
40) is connected to the switching valve via piping (41).

(42) is one outlet of the switching valve (39) and the water supply pipe (3
6), (43) is the pipe that connects the other outlet and the rinse pump (26), (44) is the pipe that connects the rinse pump (26) and the accumulator (27), and (45) is the rinse pipe. Pump (26) and piping (46)
The switching valve (47) is connected to the pipe (47) between one outlet of the switching valve (45) and the hot water storage machine (24).
A) A water purifier that filters and purifies water, connected at (47B), (48) is one inlet of the switching valve (31), also the outlet, rinse pipes (34) (35) and water spray pipe (37)
(49) is a pipe that connects the rinse tank (28), the rinse pump (29), and the pipe (48),
(50) is a pipe connecting the air pump (30) and the other inlet of the switching valve (3I), (51) is the switching valve (45)
(53) connecting the other outlet of the pipe (48) to the pipe (48);
The piping (54) connecting the cleaning pump (21) and the cleaning pipes (32) and (33) is an air supply port that opens on the outer surface of the upper part and the lower surface of the upper part of the box body (1), respectively, and (55) is an air supply port that connects the cleaning pump (21) and the cleaning pipes (32) and (33). mouth(
a dust removal filter provided at the outer opening of (54); (56);
) is also a dust removal filter provided at the inner opening, (5
7) is a shielding plate provided below the inner surface opening to prevent the intrusion of cleaning water; (58) is an exhaust port that opens on the inner and outer surfaces of the upper part of the box (1); and (59) is an exhaust port (58). )
The exhaust blower (60) is installed inside the blower (59).
), (61) is a shutter that is movably arranged horizontally below the blower (59) and opens and closes the exhaust port (58), and (62) is fixed to the left of the shutter (61). A motor (64) that drives the pulley (63) has one end connected to the shutter (61) and the other end connected to the pulley (63).
), (65) is the shutter (61)
The roller (66) supported on the right side is a string whose one end is connected to the shutter (61) and the other end is connected to one end of the tension spring (67), and the other end of the tension spring (67) is connected to the box body. It is hung on a hook (68) fixed to (1). (69A)
(69B) is a shutter open detection switch that operates when the shutter (61) is opened to the position that opens the exhaust port (58), and (69B) is a shutter closed detection switch that also operates when the shutter (69B) is closed to the position that closes the exhaust port (58). The switch (70) is an operation panel installed on the upper front of the box (1), and (71) is a control device composed of a microcomputer.

Next, the operation of this embodiment will be explained with reference to FIG.

When washing dishes, the dishes are stored in the heel (12). Assuming that the door (2) is now closed, the latch piece (6) is in the position shown in Figure 4 (a), and the door lock pin (8) is in the position shown in Figure 4 (a).
is engaged in. Now, if you take the handle (5) of the door (2) and push the middle part of the latch piece (6) upward with your finger, it will be displaced as shown in Figure 4(b), and the latch piece (6) will be displaced as shown in Figure 4(b). ) will come off the door lock pin (8), so the door (2) will be attached to the hinge (3).
The opening (1a) of the box (1) is supported by the
)open. When the door (2) opens, the state shown in FIG. 6(b) occurs, the door switch (9) becomes inoperable and all circuits stop. The support rod (10) is pulled out of the box body (1) through the support hole (11) when the door (2) is opened, and when the door (2) is fully opened, the head (10a) is inserted into the support hole (11).
The open position of the door (2) is determined because the door (2) comes into contact with the back side of the door (2).

- Next, add detergent into the washing tank (18) and move the container (12) containing the dishes from the opening (1a) to the box (1).
Insert it into the box, place it on the rail (13), and store it inside the box (1). Now, when door (2) is closed, each part operates in the reverse order as described above, door (2) is locked, and door switch (
9) operates as shown in FIG. 6(a), and the circuit becomes ready for operation. Note that the shutter (61) is connected to the exhaust port (5
8) is closed and detected by the shirt closure detection switch (69B).

Here, when a fully automatic switch (not shown) on the operation panel (70) is operated, a cleaning operation is started as follows in response to a command from the control device (71).

■The prewash switching valve (39) operates, and the pipe (41) and pipe (42)
), and the tap water passes through the pipe (42) to the water supply pipe (
36) and is sprayed downward from the water supply nozzle (36a), prewashing the dishes in the basket (12), and falling and being stored in the washing tank (18). This action is 1
Lasts from 0 to 30 seconds.

(2) The water heater (20) is energized and the water stored in the cleaning tank (18) is heated to approximately 50°C (details are omitted). In addition, the switching valve (39) is switched (at this time, the pipes (46) (47A) are connected by the switching valve (45)), and the pipes (41) (43) (46) (47A)
When the water is connected, purified tap water is supplied to the hot water storage machine (24) via the rinse pump (26) and the purifier (47), and when the water supply is completed, the switching valve (39) is turned off. Then, the heater (25) is energized to heat the supplied water to about 80° C. (details are omitted).

During this time, the water applied to the dishes during the pre-washing softens the cooked rice and the like that adhere to the dishes, making them easier to remove.

The hot water storage machine (24) can be adjusted to any desired temperature using a hot water temperature adjusting device (not shown), so that hot water at a washing and rinsing temperature suitable for dishes, pots, etc. can be obtained.

■The main washing washing pump (21) is driven, and the detergent-containing hot water stored in the washing tank (18) is supplied to the washing pipes (32) and (33) through the pipe (53), and the washing nozzle (32a)
) (33a) The water is sprayed onto the tableware in the container (12) to wash it. At the same time, the motor (14) is driven to rotate the eccentric cam (15). Now, Figure 7 (a)
), the heel (12) moves to the door (2) side and compresses the push spring (16), and the push spring (16) moves as shown in Figure 7(b).
), the heel (12) moves toward the eccentric cam (15). Since the basket (12) swings in the horizontal direction in this manner, the hot water jetted from the cleaning nozzles (32a) (33a) evenly cleans the tableware in the basket (12).

The hot water after washing falls into the washing tank (18), is again supplied to the washing pipes (32) and (33) by the washing pump (21), and this process is repeated thereafter.

When the cleaning is completed, the switching valve (22) is turned off and the hot water in the cleaning tank (18) is discharged to the sewer through the drain pipe (23).

■The rinse and wash selector valves (39) and (45) are switched and the pipe (4
1) (43) (46) (51) are connected, the tap water flows through the pipe (51) (4) via the rinse pump (26).
8) to the rinsing pipes (34) and (35), and is sprayed from the rinsing nozzles (34a) (35a) onto the tableware in the heel (12). The tap water is also supplied to the water sprinkling pipe (37) and is sprayed from the water nozzle (37a), and the water sprinkling pipe (37) rotates in a horizontal plane due to the reaction force. In this way, the detergent adhering to the tableware is washed away by the water jetted from the rinse nozzles (34a) (35a) and the water spray nozzle (37a). During this time, the basket (12) is rocked in the same manner as during main washing.

Next, the switching valve (45) operates again, and the piping (46) (
47) is connected. Here, when the rinse pump (26) is operated, the purified hot water in the hot water storage machine (24) is pumped, and the purified water in the water purifier (47) is used for rinsing as in the case of water rinsing. Pipe (34) (35) and sprinkler pipe (
37). Further, the rinse pump (29) is operated, and the rinse in the rinse pump (28) is constantly sucked up and mixed into the hot water in the pipe (48). In this way, the tableware is thoroughly rinsed with purified water, and its finish is good. Note that the cage (12) is swung in the same manner as in the case of water rinsing.

■Drainer 1- The switching valve (31) is switched and the air pump (30)
When the is operated, compressed air passes through the pipes (50) (48) to the rinse pipes (34) (35) and the water spray pipe (37).
and is sprayed from the rinse nozzle (34a) (35a) and the water spray nozzle (37a). Moisture remaining on the tableware is blown away by this jet of air. In this way, it is possible to sufficiently blow away the rinsing water remaining in the recesses of the tableware, especially in the deep threaded bottoms peculiar to Japanese tableware. Further, the basket (12) is swung in the same manner as in the case of rinsing. It should be noted that the noise generated during cleaning so far does not go out through the exhaust port (58) due to the closure of the shutter (61). In addition, the splashing of cleaning water outside the box (1) can also be avoided.
This is prevented by the shutter (61) and the shielding plate (57).

■When the steam vent motor (62) is driven, the pulley (63) rotates and the string (64) is wound up, the shutter (6I) moves and the exhaust port (58) is opened, and the shutter shutter is opened. Detected by the switch (69A), the motor (62) is stopped. Here, when the blower (59) is operated, the air outside the box 12-(1) is sucked in from the air supply port (54), passes through the dust filters (55) and (56), and becomes clean. An air flow is formed that passes through the box body (1) and is discharged from the exhaust port (58). At this time, steam is generated inside the box (1) due to the evaporation of residual moisture, and this steam is discharged from the exhaust port (58) by the air flow, thereby promoting the drying of the tableware.

■Completion When the steam release operation described above has been carried out for a predetermined time, the blower (59
) stops and the motor (62) rotates in the opposite direction.

Now, the string (66) is pulled by the force of the tension spring (67),
The shutter (61) moves and the exhaust port (58) is closed, which is detected by the shutter closure detection switch (69B) and the motor (62) is stopped.

[Effects of the Invention] As explained above, in this invention, hot water that has been purified and heated from tap water is used as the rinsing water, so the rinsing water itself does not contain any odor, and the dishes can be completely washed. It has the effect of

[Brief explanation of drawings]

Figures 1 to 11 are diagrams showing an embodiment of the dishwasher according to the present invention, and Figure 1 is a front view (lower section) excluding the door.
, Fig. 2 is a side view, Fig. 3 is an enlarged perspective view of the door lock mechanism, Fig. 4 is an explanatory diagram of the operation of Fig. 3, Fig. 5 is an enlarged side sectional view of the door switch, and Fig. 6 is an enlarged perspective view of the door lock mechanism. Vl-Vl in Figure 5
7 is an enlarged side sectional view of the tableware basket swinging mechanism, FIG. 8 is an enlarged perspective view of the air supply port, FIG. 9 is an enlarged plan view of the exhaust port, and FIG. FIG. 9 is a sectional view taken along the line X-X, and FIG. 11 is a piping diagram. In the figure, (1) is a box, (12) is a basket, (24) is a hot water storage device, (25) is a heater, (32a) (33a) are cleaning nozzles, (34a) (35a) are rinsing nozzles, ( 37
a) is a water nozzle, and (47) is a water purifier. Note that the same reference numerals in the figures indicate the same parts.

Claims (1)

[Claims] The tap water is purified in a washing machine that sprays rinsing water heated with tap water onto tableware stored in a box body and sprayed with washing water to rinse off the washing water adhering to the tableware. A dishwasher characterized by being equipped with a water purifier.