JPH03212254A - Dish washer - 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 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 cleaning 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, washing and rinsing water is sprayed onto the dishes in a sealed box to wash and rinse them. There is a problem that when drying after washing, steam is filled due to evaporation of water, and it takes time to dry.

This invention was made to solve the above problems, and an object thereof is to provide a dishwasher that can accelerate drying after rinsing.

[Means for Solving the Problems] The dishwasher according to the present invention has an air supply port and an exhaust port provided in the box body, and the air supply port or the exhaust port is closed during washing of tableware and opened after washing. It is equipped with a shutter.

[Function] In this invention, the box body is provided with an air supply port and an air exhaust port, which are opened and closed by the shutter, so that when the shutter is opened, the steam inside the box body is discharged to the outside of the box body. When the air supply port or exhaust port is closed, the flow of air, water, etc. is blocked.

[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 cross-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. 10 is taken along the line X-X in Fig. 9. The line sectional view and FIG. 11 are piping diagrams.

In FIGS. 1 to 11, (1) is a box body, and an opening (1a) is formed in the upper half of the front surface. (2) is a door 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). ) by inserting the bottle (4) fixed to the lower edge of the door (2), the door (2) will close the box (1) at its lower edge.
). (5) is a handle that is fixed to the upper edge of the door (2) and is made of a longitudinal member with a curved cross section. )
A push spring (7) that presses the central part of the door downward is stored, and the end of the locking piece (6) is attached to the box body (1) and the door (
Insert the door lock pin (2) through the hole (2a) provided in
8). (9) is fixed to the top of the box (1) and engages with the lower edge of the door (2).
2) The door switch (1o) has a head (10a) at one end and a support hole (1) at the front of the box body (1) at the other end.
The supporting rod (12) is pivotally connected to the door (2) through the support rod (12), which is a basket for storing tableware (not shown) to be washed and stored in the box body (1). ), and is supported by a rail (13) arranged toward the back from the opening (1a) of the box (1). (14) is a motor that is fixed to one side of the box (1) and rotates the eccentric cam (15);
(16) is provided inside the door (2) and the protruding rod (
a push spring that presses the push plate (17) facing 12a);
A cleaning tank (18) is located below the opening (la) of the box body (1) and has an inclined bottom, and has a downwardly protruding recess (18a) at the lowest part of the bottom. (19) is a head that is housed in the recess (18a), and the operating rod (19a) that protrudes upward is fixed, and the length of the operating rod (19a) is the same as when the cleaning tank (18) is full It is set so that it protrudes 3 to 5 cm from the surface. (20) is the cleaning tank (18)
(21) is a cleaning pump that is installed at the bottom of the box (1) and sends out cleaning water; (22) is a cleaning pump (21) connected to the recess (18a) of the cleaning tank (18); ) and the drain pipe (23), a switching valve (
24) is a water storage machine that has a heater (25) and creates and stores rinsing water; (26) is a rinsing pump that increases the pressure of the rinsing water and sends it out; (27) is an accumulator that absorbs the pressure of the rinsing pump (26); (28) is a rinse tank in which a rinse that improves the drying finish after rinsing is stored; (29)
) is a rinse pump that sucks a certain amount of rinse in the rinse tank (28) and supplies it to the rinsing water, (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 pipes arranged in the upper part of the box body (1) and having a cleaning nozzle (32a) on the lower surface;
(33) is also located below and has a cleaning nozzle (33) on the top surface.
3a), a rinsing tube (34) also arranged above and having a rinsing nozzle (34a) on the lower side;
35) is also located below and has a rinsing nozzle (3
5a), (36) is a water supply pipe (36) which is also arranged above and has a water supply nozzle (36a) on its lower surface;
7) is also arranged in one row at the bottom with water spray nozzles (3) on the top surface.
7a), the central part of which is supported by a bearing (38) and configured to be rotatable in a horizontal plane; (39) is a switching pipe connected to a valve (40) connected to a water pipe by a pipe (41); Valve, (42) is a pipe connecting one outlet of the switching valve (39) and the water supply pipe (36), (43) is a pipe connecting the other outlet and the rinse pump (26), (44)
(45) is the pipe connecting the rinse pump (26) and the accumulator (27).
46) is the switching valve connected, (47) is the switching valve (4
5) Piping connecting one outlet and the hot water storage machine (24), (4)
8) is the water storage machine (24), one inlet of the switching valve (31), the same outlet, pipes connecting the rinse pipes (34) (35) and the sprinkler pipe (37), and (49) is the rinse tank (2).
8), piping connecting the rinse pump (29) and piping (48), (50) connecting the air pump (3o) and the switching valve (3o)
(51) is a pipe connecting the other outlet of the switching valve (45) and the pipe (48);
(53) is the cleaning pump (21) and cleaning pipe (32) (3
3), (54) is an air supply port that opens on the upper outer surface and the upper white lower surface of the box body (1), (55)
is a dust removal filter provided at the outer opening of the air supply port (54), (56) is a dust removal filter also provided at the inner opening, and (57) is provided below the inner opening to prevent intrusion of cleaning water. (58) is an exhaust port that opens on the inner and outer surfaces of the upper part of the box body (1), (59) is an exhaust blower installed in the exhaust port (58), and (60) is an air blower ( (59) is a cover that protects the blower (59), (61) is a cover that protects the blower (5
9) The exhaust port (
(58) is a shutter that opens and closes; (62) is a shutter (61);
) is fixed to the left side of the motor and drives the pulley (63);
(64) is a string with one end connected to the shutter (61) and the other end wrapped around the pulley (63), (65) is a roller supported on the right side of the shutter (61), and (66) is a string with one end connected to the shutter (63). (61) and the other end is connected to one end of a tension spring (67), and the other end of the spring (67) is hooked to a hook (68) fixed to the box body (1). ing. (69A) is a shutter open detection switch that operates when the shutter (61) is opened to the position where the exhaust port (58) is opened, and (69B) is also activated when the shutter (69B) is closed to the position where the exhaust port (58) is closed. A shirt closure detection switch, (7o) is an operation panel installed at 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 basket (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)
)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 (1o) 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 opening position of the door (2) is determined because it comes into contact with the back side of the door (2).

Next, detergent is poured into the washing tank (18), and the container (12) containing the dishes is inserted into the box (1) through the opening (1a).
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). Also, the switching valve (39) is switched (at this time, the pipes (46) and (47) are communicated with each other by the switching valve (45)), and the pipes (41), (43), (46), and (47) are communicated with each other. Then, the tap water is supplied to the water storage machine (24) via the rinse pump (26), and when the water supply is completed, the switching valve (39) is turned on.
) is turned off. Then, the heater (25) is energized,
The supplied water is heated to approximately 80°C (details 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 in the hot water storage machine (24) can be adjusted to any desired temperature using a hot water temperature adjustment 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 from the piping (53) to the washing pipes (32) (33), 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 heel (12) swings in the horizontal direction in this manner, the hot water jetted from the cleaning nozzles (32a) (33a) evenly washes the tableware in the heel (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 rinsing pump (26) is operated, the hot water in the hot water storage device (24) is fed under pressure to the rinsing pipes (34) (35) and the water sprinkling pipe (37), as in the case of the water rinsing described above. Supplied. Also, rinse pump (
29) is operated to suck a certain amount of rinse in the rinse pump (28) and mix it into the hot water in the pipe (48). The tableware is now thoroughly rinsed and has a good finish. Note that the cage (12) is swung in the same manner as in the case of water rinsing.

■Drainer 11- 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).
supplied to.

Rinse nozzle (34a) (35a) and 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. In addition, baskets (12
) is rocked in the same way 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).

The shutter (6) also prevents washing water from scattering outside the box (1).
1) 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 (61) moves and the exhaust port (58) is opened, and the 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.

In addition, in the above embodiment, the shutter (61) is connected to the exhaust port (5).
8), but it may also be provided at the intake port (54) or both.

Further, although steam is efficiently discharged by the exhaust blower (59), it is also possible to rely on natural intake and exhaust without providing the blower (59), which is sufficiently useful. In this case as well, noise prevention and water splash prevention are achieved by the shutter (61).

[Effects of the Invention] As explained above, in this invention, the box body is provided with an air supply port and an exhaust port, and the air supply port or exhaust port is closed by a shutter during dishwashing, and is opened after washing. When the shutter is opened, the steam inside the dark box will be discharged outside the box, which can shorten the drying time of tableware.When the shutter is closed, the air supply or exhaust port will be blocked from flowing, reducing noise and water splashing during cleaning. It is effective in preventing

[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. VI-VI 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, (32a) (
33a) is a cleaning nozzle, (34a) and (35a) are rinsing nozzles, (37a) is a watering nozzle, (54) is an air supply port, (58) is an exhaust port, (61) is a shutter, and (62) is a motor. be. Note that the same reference numerals in the figures indicate the same parts.

Claims (1)

[Claims] In an apparatus for washing tableware stored in the box by spraying cleaning hot water into the box, the box is provided with an air supply port and an exhaust port leading to the outside, and the air supply port or the exhaust port is provided with the above-mentioned A dishwasher characterized by comprising a shutter that closes the air supply port or the exhaust port during washing of tableware, and opens the air supply port or exhaust port after the washing is completed.