JP7028723B2 - Cleaning method and cleaning equipment - Google Patents

Description

The present invention relates to a cleaning method for washing away objects to be cleaned, such as dirt, oil, and leftovers adhering to tableware, and a cleaning device.

Conventionally, in the washing device, a rack containing multiple dishes (objects to be washed) is housed in the washing room, the door is closed, and the washing water sprayed toward the dishes in the washing room is dropped and flowed into the tank. There is a washing device that repeatedly uses the washing water stored in the washing water and washes the dishes with the circulating washing water.

Such cleaning equipment is often used in restaurants and the like, and since the predetermined cleaning cycle is repeated many times during the business hours of the day, the price of tap water used for cleaning water and the water used for cleaning are repeated. For reasons such as the energy cost of heating and hygiene, it is desired to improve the detergency while reducing the amount of water used.

In addition, it is generally known that the cleanliness of the washing water has a great influence on the washing of dishes. Cleanliness is the degree to which dirt, oil, leftovers, etc. adhering to the dishes to be washed are mixed, and the higher the degree to which dirt, oils, leftovers, etc. adhering to the dishes are mixed in the washing water. , The cleanliness is low.

The dishwasher described in Patent Document 1 has a switching plate that changes the path through which the washing water sprayed toward the dishes flows in the washing room. The switching plate is tilted to one side and the washing water stored in the washing hot water tank is sprayed toward the dishes in the washing room to wash the dishes and perform preliminary washing to drain the washing water used for washing. Then, after pre-cleaning, the switching plate is tilted to the other side and the washing water stored in the washing hot water tank is sprayed toward the dishes in the washing room, and the washing water that has washed the dishes is flowed to the washing hot water tank and circulated. Let them wash the dishes. After washing, it is a dishwasher that rinses dishes by supplying hot water from a hot water source.

The dishwasher described in Patent Document 2 sprays the washing water stored in the tank A and the tank B toward the tableware in the washing room and circulates the washing water in each of the tank A and the tank B to wash the tableware. And it is a dishwasher that finishes and rinses with fresh water, for example, tap water.

Heisei 2-277427 Gazette Japanese Patent Publication No. 2015-507486

In the preliminary washing for washing away dirt, oil, leftovers, etc. adhering to the dishes, the dishes described in Patent Document 1 are washed with highly clean washing water, but the dishes in the washing room are washed. The water is discharged as it is. Therefore, there is a problem that the amount of washing water used for washing dishes increases in a day by repeating the washing cycle.

In the case of washing with the washing water stored in the tank A, the washing water described in Patent Document 2 is used to wash away dirt, oil, leftovers and the like adhering to the tableware and circulate the washing water. Therefore, every time the washing with the washing water stored in the tank A is repeated, dirt, oil, leftovers and the like adhering to the tableware are accumulated in the tank A, and the washing water stored in the tank A is easily soiled. In addition, even in the washing with the washing water stored in the tank B after washing the dishes with the washing water stored in the tank A, dirt, oil, leftovers, etc. adhering to the dishes accumulate in the tank B every time it is repeated. The stored wash water is easy to get dirty.

Then, by repeating the washing cycle with the washing water stored in the tank A and the tank B and the fresh water, the cleanliness of the washing water stored in the tank A and the tank B becomes low. When the cleanliness is lowered, there is a problem that the cleanability of the dishes is lowered, for example, dirt, oil, fine leftovers and the like may be reattached to the dishes to be newly washed.

It is an object of the present invention to provide a cleaning method and a cleaning device capable of suppressing a decrease in detergency in a repetitive cleaning cycle and reducing the amount of water used.

In order to achieve the above object, the cleaning method according to the present invention is to spray the cleaning water stored in the main cleaning tank toward the object to be cleaned in the cleaning chamber to perform cleaning, and then drop and flow the cleaning water into the main cleaning tank. , The main cleaning step to circulate and clean the object to be cleaned,
A drainage step for draining a predetermined amount of the washing water stored in the main washing tank,
Starting after the completion of the main cleaning step, cleaning water having a higher cleanliness than the cleaning water stored in the main cleaning tank stored in the circulating rinse tank is sprayed onto the object to be cleaned, and the cleaning water is washed by the main cleaning. A circulation rinsing step in which the object to be cleaned is washed by circulating it by dropping and flowing it into the circulating rinse tank after dropping and flowing it into the tank.
Including at least
At least from the end of the main cleaning step to the end of the circulating rinsing step, one cleaning cycle for performing the drainage step is formed.
When the washing cycle is repeated, at least the same amount of washing water as the washing water drained from the main washing tank by the draining step is dropped and flowed into the main washing tank in the circulation rinsing step, and then the washing water is applied. It is characterized by dropping and flowing into the circulation rinsing tank.

Further, the cleaning device according to the present invention is a cleaning device that repeats a cleaning cycle in which a plurality of different cleaning waters are sequentially jetted toward an object to be cleaned in a cleaning chamber to wash the object to be cleaned.
A main cleaning tank that stores cleaning water for performing main cleaning by injecting and circulating it in the cleaning chamber to clean the object to be cleaned.
A drainage unit that drains a predetermined amount of the washing water stored in the main washing tank whose cleanliness has deteriorated by washing the object to be washed, and
After the main cleaning, the cleaning water is sprayed and circulated in the cleaning chamber to store the cleaning water having a higher cleanliness than the cleaning water stored in the main cleaning tank for performing the circulation rinsing to wash the object to be cleaned. With the tank
By switching the inclination of the switching plate, which is a plate-shaped member provided below the cleaning chamber, the cleaning water sprayed in the cleaning chamber is sent to one of the selected main cleaning tank or the circulating rinsing tank. And the switching part that guides it to fall and flow,
At least one water feeding means for sucking and discharging the washing water stored in the main washing tank or the washing water stored in the circulating rinsing tank through a pipe and injecting the washing water in the washing chamber.
Equipped with
When performing the circulation rinse,
By switching the inclination of the switching plate, at least the same amount of washing water as the washing water drained by the drainage portion is dropped and flowed into the main washing tank, and then dropped and flowed into the circulation rinse tank. It is characterized by.

According to the cleaning method and the cleaning apparatus of the present invention, it is possible to suppress a decrease in detergency in a repetitive cleaning cycle and reduce the amount of water used.

The front side perspective view which shows the overall structure of the cleaning apparatus of one Embodiment of this invention. A rear perspective view showing the overall configuration of the cleaning device. The front side perspective view which shows the structure in the state which removed the door part of the said cleaning apparatus, the decorative plate of the lower outer body, and the control panel. (A) is a rear perspective view showing a configuration in which the door portion, the door portion driving means, the back plate portion, the frame, and the decorative plate of the cleaning device are removed, and (b) is a part of FIG. 4 (a). Rear view. The block diagram which shows the finishing rinsing system, the main cleaning system, and the circulation rinsing system in the said cleaning apparatus. The front view which shows the state which the door part was removed from the upper outer body of the cleaning apparatus, and the decorative board was removed from the lower outer body. 6 is a side sectional view (hatching omitted) of each tank in FIG. 6, where (a) is a DD sectional view, (b) an EE sectional view, and (c) an FF sectional view. 3A is a cross-sectional view taken along the line AA (hatching omitted), in which FIG. 3A shows a state in which the switching plate is tilted toward the main cleaning tank, and FIG. 3B shows a state in which the switching plate is tilted toward the circulation rinsing tank side. (A) is a cross-sectional view taken along the line BB in FIG. 6 (hatching omitted), and (b) is a cross-sectional view taken along the line GG in FIG. 9 (a) (hatching omitted). (A) is a cross-sectional view taken along the line CC in FIG. 6 (hatching omitted), and (b) is a cross-sectional view taken along the line HH in FIG. 10 (a) (hatching omitted). (A) is a perspective view showing the configuration of the water return plate portion of the cleaning device, (b) is a perspective view showing the configuration of the water collecting portion of the cleaning device, and (c) is a configuration of the switching unit of the cleaning device. The perspective view which shows. (A) (b) is a front view which shows the detailed structure of the switching part in the said cleaning apparatus. (A) is a perspective view showing the configuration of the leftovers receiving portion in the cleaning device, and (b) is a perspective view showing a state in which the leftovers basket is removed from the leftovers receiving portion. The block diagram explaining the operation of storing water in a circulation rinse tank in the operation preparation step in the said cleaning apparatus. The block diagram explaining the operation of storing water in the main cleaning tank in the operation preparation step in the cleaning apparatus. The block diagram explaining the operation of this cleaning step in the said cleaning apparatus. The block diagram explaining the operation of the drainage step in the said cleaning apparatus. The block diagram explaining the operation which flows the washing water to the main washing tank in the circulation rinsing step in the said washing apparatus. The block diagram explaining the operation which circulates the washing water to the circulation rinsing tank in the circulation rinsing step in the said washing apparatus. The block diagram explaining the operation of the finishing rinsing step in the said cleaning apparatus. The block diagram explaining the operation of the re-cleaning preparation step in the said cleaning apparatus.

According to the first aspect of the present invention, the washing water stored in the main washing tank is sprayed toward the object to be washed in the washing chamber to be washed, and the washing water is circulated by dropping and flowing into the main washing tank. The main cleaning step to clean the object to be cleaned,
A drainage step for draining a predetermined amount of the washing water stored in the main washing tank,
Starting after the completion of the main cleaning step, cleaning water having a higher cleanliness than the cleaning water stored in the main cleaning tank stored in the circulating rinse tank is sprayed onto the object to be cleaned, and the cleaning water is washed by the main cleaning. A circulation rinsing step in which the object to be cleaned is washed by circulating it by dropping and flowing it into the circulating rinse tank after dropping and flowing it into the tank.
Including at least
At least from the end of the main cleaning step to the end of the circulating rinsing step, one cleaning cycle for performing the drainage step is formed.
When the washing cycle is repeated, at least the same amount of washing water as the washing water drained from the main washing tank by the draining step is dropped and flowed into the main washing tank in the circulation rinsing step, and then the washing water is applied. The cleaning method is characterized by dropping and flowing into the circulating rinsing tank.

According to this cleaning method, the cleanliness of the cleaning water stored in the main cleaning tank can be improved, and the deterioration of the cleaning property of the object to be cleaned due to the repetition of the cleaning cycle can be suppressed. In addition, the washing water stored in the circulating rinsing tank can be dropped and flowed into the main washing tank for reuse, and the amount of water used in the repeated washing cycle can be reduced.

The invention according to claim 2 of the present invention is the invention according to claim 1, wherein the drainage step is started after the completion of the present cleaning step.

As a result, the deteriorated cleaning water stored in the main cleaning tank can be drained together with dirt, oil, leftovers, etc., and the cleaning performance of the object to be cleaned in the main cleaning step performed in the next cleaning cycle can be improved. can.

The invention according to claim 3 of the present invention is the invention according to claim 1, wherein the drainage step is started before the end of the present cleaning step.

As a result, the deteriorated cleaning water stored in the main cleaning tank can be drained together with dirt, oil, leftovers, etc., and the cleaning performance of the object to be cleaned in the main cleaning step performed in the next cleaning cycle can be improved. can.

The invention according to claim 4 of the present invention is the invention according to any one of claims 1 to 3, wherein in the washing cycle, the fresh water stored in the finishing rinse tank in the washing chamber was washed by a circulating rinse step. The cleaning method is characterized by including a finishing rinsing step in which the object to be cleaned is sprayed to be cleaned and then dropped and flowed into a circulating rinsing tank.

As a result, the cleanability of the object to be cleaned can be improved, and the clean water used for cleaning the object to be cleaned can be dropped and flowed into the circulating rinse tank to improve the cleanliness of the cleaning water stored in the circulating rinse tank. can.

In the invention according to claim 5 of the present invention, in the invention according to any one of claims 1 to 4, a rest time, which is a predetermined time, is provided between the main washing step and the circulating rinsing step. It is a cleaning method characterized by.

As a result, the washing water sprayed in the washing chamber is surely allowed to fall and flow into the main washing tank, and it is suppressed from being mixed with the higher-cleaning washing water sprayed in the circulation rinsing step, and the circulation is performed. It is possible to prevent an unintended decrease in the cleanliness of the wash water stored in the rinse tank, and to suppress a decrease in the detergency of the object to be washed due to repeated washing cycles.

The invention according to claim 6 of the present invention is a cleaning device that repeats a cleaning cycle in which a plurality of different cleaning waters are sequentially jetted toward an object to be cleaned in a cleaning chamber to wash the object to be cleaned.
A main cleaning tank that stores cleaning water for performing main cleaning by injecting and circulating it in the cleaning chamber to clean the object to be cleaned.
A drainage unit that drains a predetermined amount of the washing water stored in the main washing tank whose cleanliness has deteriorated by washing the object to be washed, and
After the main cleaning, the cleaning water is sprayed and circulated in the cleaning chamber to store the cleaning water having a higher cleanliness than the cleaning water stored in the main cleaning tank for performing the circulation rinsing to wash the object to be cleaned. With the tank
By switching the inclination of the switching plate, which is a plate-shaped member provided below the cleaning chamber, the cleaning water sprayed in the cleaning chamber is sent to one of the selected main cleaning tank or the circulating rinsing tank. And the switching part that guides it to fall and flow,
At least one water feeding means for sucking and discharging the washing water stored in the main washing tank or the washing water stored in the circulating rinsing tank through a pipe and injecting the washing water in the washing chamber.
Equipped with
When performing the circulation rinse,
By switching the inclination of the switching plate, at least the same amount of washing water as the washing water drained by the drainage portion is dropped and flowed into the main washing tank, and then dropped and flowed into the circulation rinse tank. It is a cleaning device characterized by.

According to this cleaning device, the cleanliness of the cleaning water stored in the main cleaning tank can be improved, and the deterioration of the cleaning property of the object to be cleaned due to the repetition of the cleaning cycle can be suppressed. In addition, the washing water stored in the circulating rinsing tank can be dropped and flowed into the main washing tank for reuse, and the amount of water used in the repeated washing cycle can be reduced.

The invention according to claim 7 of the present invention includes, in the invention according to claim 6, a finishing rinsing tank for storing fresh water for performing a finishing rinsing for washing the object to be washed by spraying in the washing chamber, and circulates. The cleaning device is characterized in that the fresh water sprayed in the cleaning chamber is dropped and flowed into the circulating rinsing tank by a switching plate tilted toward the rinsing tank side.

As a result, the cleanability of the object to be cleaned can be improved, and the clean water used for cleaning the object to be cleaned can be dropped and flowed into the circulating rinse tank to improve the cleanliness of the cleaning water stored in the circulating rinse tank. can.

The invention according to claim 8 of the present invention is the invention according to claim 7, wherein the water feeding means is
A main cleaning pump that sucks in and discharges the cleaning water stored in the main cleaning tank through the main cleaning pipe that allows the cleaning water stored in the main cleaning tank to flow, and injects it in the cleaning chamber.
A circulation rinse pump that sucks in and discharges the wash water stored in the circulation rinse tank through the circulation rinse pipe that allows the wash water stored in the circulation rinse tank to flow, and injects it in the wash chamber.
A finishing rinsing pump that sucks in and discharges the fresh water stored in the finishing rinsing tank through the finishing rinsing pipe that allows the fresh water stored in the finishing rinsing tank to flow, and injects it in the washing room.
Equipped with
The cleaning device is characterized in that the main cleaning pipe and the main cleaning pump, the circulation rinsing pipe and the circulation rinsing pump, and the finishing rinsing pipe and the finishing rinsing pump are configured by different piping systems. It is the one that was made.

As a result, it is possible to clean the object to be cleaned by spraying it in the cleaning chamber without contacting the cleaning water and the fresh water having different cleanliness in each piping system. Then, it is possible to prevent an unintended decrease in the cleanliness of the washing water and the fresh water, and improve the washing property of the object to be washed.

The invention according to claim 9 of the present invention is the invention according to claim 7 or 8, in which the finishing rinse is performed.
When the fresh water is dropped and flowed into the circulating rinse tank and the washing water stored in the circulating rinse tank becomes higher than the predetermined water level, the washing water stored in the circulating rinse tank is made to flow to the main washing tank. It is a cleaning device characterized by being provided with a flow tube capable of performing the above.

The fresh water stored in the finishing rinse tank is sprayed in the washing room to wash the object to be washed, and the washing water is dropped and flowed into the circulating rinse tank, and the washing water stored in the circulating rinse tank flows into the main washing tank with lower cleanliness. Let me. As a result, while reusing the washing water stored in the circulating rinse tank, the cleanliness of the washing water stored in the main washing tank can be improved, and the washing property of the main washing in the next washing cycle can be maintained. ..

According to a tenth aspect of the present invention, in the invention according to the eighth or ninth aspect, at least a part of the cleaning pipe or the circulation rinsing pipe has a rectangular cross section in a direction orthogonal to the pipe length direction. It is a cleaning device characterized by being present.

As a result, when the space for arranging the pipes is configured to be substantially rectangular in cross-sectional view, cleaning is performed as compared with the case where the cross-section in the direction orthogonal to the pipe length direction has another shape (for example, a circular shape). The cross-sectional area of the flow path through which the water flows can be increased, and the flow rate of the washing water discharged by the water feeding means can be increased. As a result, it is possible to save space in the cleaning device and increase the amount of cleaning water sprayed per unit time toward the object to be cleaned in the cleaning room to improve the cleaning property of the object to be cleaned.

(Embodiment 1)
(Overview of cleaning equipment)
First, the basic configuration of the cleaning device 1 of the present invention will be described with reference to FIGS. 1, 2, 3, and 4.

As shown in FIGS. 1 and 2, the cleaning device 1 has a substantially rectangular parallelepiped shape, and is partitioned by a frame 5 constituting a skeleton and a partitioning member (frame) 6 composed of the frame 5, and is an upper portion. It is composed of an upper outer shell 10 and a lower lower outer shell 20. Each surface of the cleaning device 1 having a substantially rectangular parallelepiped shape is referred to as an upper surface side, a front surface side, a left side surface side, a right side surface side, a back surface side, and a lower surface side.

The partition member 6 is fixed to the inside of the partition member 6 by welding or the like so as to be substantially parallel in the horizontal direction to a sheet metal having an opening (not shown) in the central portion when viewed from above.

The upper outer shell 10 accommodates a door portion 11 that can be opened and closed in the vertical direction and a rack R that stores a plurality of tableware (objects to be washed), and sprays washing water and fresh water from above and below the rack R. , A washing room 30 for washing dishes stored in the rack R is provided.

The door portion 11 that can be opened and closed in the vertical direction is formed in a U shape in a top view by the door front portion 12a, the door left side surface portion 12b, and the door right side surface portion 12c. An upper surface plate portion 13 is attached to the upper surface side of the upper outer shell 10, and a back plate portion 17 is provided on the back surface side of the cleaning device 1.

The door portion 11 is used to wash the dishes in a closed state, so that the door portion 11, the top plate portion 13, and the back plate portion 17 can be used to wash the dishes, and the washing water and fresh water used for washing the dishes, and the washing room 30. It is possible to prevent the steam generated inside from scattering or leaking out of the cleaning chamber 30.

The door portion 11 is opened and closed by raising and lowering the door portion 11 in the vertical direction by a drive means (door portion opening / closing means) 33 described later, but when electricity is not supplied to the cleaning device 1, the cleaning device 1 is used. When the power of 1 is not turned on, the operator holds the handle portion 15 held by the door front portion 12a and raises and lowers the door portion 11 in the vertical direction to open and close the door portion 11.

The door front portion 12a constituting the door portion 11 is provided with a window portion 14 having a substantially rectangular opening and a transparent resin attached thereto.

Further, at the lower part of the door left side surface portion 12b and the door right side surface portion 12c, there is a door stopper 16 that comes into contact with the partition member 6 when the door portion 11 is closed. The door stopper 16 is made of an elastic material so as to be able to absorb the impact when the door portion 11 is closed.

As shown in FIGS. 1 and 2, the frame 5 of the lower outer shell 20 includes a front decorative plate (decorative plate) 21a, which is a decorative plate made of sheet metal, a left side decorative plate (decorative plate) 21b, and a right side. A surface decorative plate (decorative plate) 21c is attached.

The front decorative plate 21a and the left decorative plate 21b are provided with a gripping portion 22 for gripping and removing the respective decorative plates from the frame 5, and repairing members for cleaning the dishes stored in the lower outer shell 20. Alternatively, the front decorative plate 21a and the left decorative plate 21b are removable so that they can be removed from the frame 5 for replacement. Although the right side decorative plate 21c is fixed to the frame 5, the right side decorative plate 21c may be detachable from the frame 5.

On the right side surface of the lower outer body 20, a control panel 18 is provided, which sends a signal to each member provided in the cleaning device 1 to drive the member, receives a signal from a sensor, an operation unit, or the like, and controls the member by a pre-assembled program. Be prepared. On the front side of the control panel 18, an operation unit (not shown) having buttons for operating driving operations and the like, and a display unit (not shown) having a display for displaying the temperatures of washing water and fresh water are provided.

The control panel 18 is not limited to the right side surface of the lower outer shell body 20, but may be provided on the front side or the left side surface side of the lower outer shell body 20, or may be provided with a switch separately from the operation unit.

As shown in FIGS. 3 and 4A, the lower outer shell 20 has a base 23 for supporting a member for spraying washing water and fresh water on the dishes in the washing chamber 30 to wash the dishes, and a base 23. It has a leg portion 24 which is attached to and stands on the floor surface of the equipment to support the cleaning device 1. In addition, in FIG. 3, the decorative plate and the control panel 18 are not displayed for convenience in order to make it easier to see the inside of the lower outer shell 20.

As will be described later, the cleaning device 1 has a main cleaning system in which cleaning water is sprayed onto the tableware stored in the rack R in the cleaning chamber 30 to perform main cleaning, and main cleaning with dirt, oil, leftovers, etc. adhering to the tableware. It is provided with a circulating rinsing system for washing away the washing water sprayed from the system and a finishing rinsing system for washing away the washing water adhering to the tableware by the main washing and the circulating rinsing.

The main washing system is provided with a main washing tank 60 for storing washing water, the circulating rinsing system is provided with a circulating rinsing tank 80 for storing washing water, and the finishing rinsing system is provided with a finishing rinsing tank 40 for storing fresh water. The main cleaning tank 60 and the circulation rinsing tank 80 are made of sheet metal and are rectangular parallelepiped-shaped tanks that open upward. Further, the finishing rinsing tank 40 is a substantially sealed rectangular parallelepiped tank which is made of sheet metal, has a flow inclined portion 121 which is an inclined portion at the upper portion, and has a triangular upper portion when viewed from the front. The bottom surfaces of the main cleaning tank 60, the circulation rinsing tank 40, and the finishing rinsing tank 80 are configured to be flush with each other so as to be in a straight line in the horizontal direction.

In the drawings of the present embodiment, in FIGS. 5, 14, 15, 15, 16, 17, 18, 18, 19, 20, and 21, which are block diagrams, the main cleaning tank 60 and the circulating rinse tank are shown. 80. Of the finishing rinsing tanks 40, a gap is provided between adjacent tanks so that a pipe can pass through. However, this is a description for convenience to make the notation of each pipe easy to read, and is actually configured with a predetermined interval, for example, a gap of 0.5 to 1 mm, or in a state of contact (see FIG. 8).

By doing so, the temperature of the washing water and the fresh water stored in the adjacent or contacting tanks can be kept warm by the washing water and the fresh water having a predetermined temperature stored in the respective tanks.

In particular, since the finishing rinsing tank 40 is configured to be sandwiched between the main washing tank 60 and the circulating rinsing tank 80, the fresh water stored in the finishing rinsing tank 40 is washed stored in the main washing tank 60 and the circulating rinsing tank 80. It can be effectively kept warm by water.

The main cleaning tank 60, the circulation rinsing tank 80, and the finishing rinsing tank 40 may be configured by partitioning one tank with at least one sheet metal. By doing so, the sheet metal separating the tanks can be made thinner, the heat retention by the washing water and the fresh water stored in the tanks can be improved, and the configuration can be simplified.

Further, the main cleaning tank 60 of the main cleaning system and the circulation rinsing tank 80 of the circulation rinsing system are connected by a flow pipe (overflow portion) 25 provided on the back surface side of the lower outer shell 20. The washing water stored in the circulating rinsing tank 80 is flowed from the outflow opening 87 of the circulating rinsing tank 80 to the main washing tank 60 through the flow pipe 25 and the inflow opening 69 of the main washing tank 60. Details of the main cleaning system, the circulation rinsing system, the finishing rinsing system, and the flow tube 25 will be described later.

In the present embodiment, the water stored in the main washing tank 60 of the main washing system and the circulating rinsing tank 80 of the circulating rinsing system is referred to as washing water. Further, the water stored in the finishing rinsing tank 40 of the finishing rinsing system is referred to as fresh water.

Further, the smaller the amount of dirt, oil, leftovers, etc. adhering to the tableware with respect to the amount of stored water and the amount of sprayed washing water, the higher the cleanliness is described. That is, the fresh water supplied from the tap water and stored in the finishing rinse tank 40, and the cleaning water stored in the main cleaning tank 60 and the circulating rinse tank 80 when not used for cleaning are the stains and oils adhering to the tableware. Since it does not contain leftovers, it is in the highest cleanliness state. The washing water used for washing the tableware used for eating is in a low cleanliness state because it contains a large amount of dirt, oil, leftovers, etc. adhering to the tableware.

(Structure of washing room)
Next, the configuration of the washing chamber 30 will be described with reference to FIGS. 1 and 3.

As shown in FIG. 3, the cleaning chamber 30 has a first door arm (door opening / closing means) 31 having one end side rotatably connected to the door portion 11, which is a door opening / closing means, and a first door. A second door arm (door opening / closing means) 32 rotatably connected to the other end side of the arm 31, and a drive shaft (door opening / closing) in which the other end side of the second door arm 32 is fixed to both ends thereof. Means) 34, a drive means (door part opening / closing means) 33 that raises and lowers the door portion 11 in the vertical direction by rotating around the central axis of the drive shaft 34, and a drive means (door portion opening / closing means) 33 connected to the door portion 11. The driving means 33 raises the door portion 11 in the vertical direction to assist the opening movement. For example, an elastic member (door portion opening / closing means) 35 which is a coil spring and the door portion 11 on both left and right ends of the back plate portion 17. A guide member (door opening / closing means) 36 for guiding the vertical movement is provided.

Further, the cleaning chamber 30 is provided with a rack support portion 37 that supports the housed rack R from below. The rack supported by the rack support portion 37 stores, for example, a plurality of dishes and transports them to the washing chamber 30 of the washing device 1, and when washing water and fresh water are sprayed in the washing chamber 30, each of them is used. The cleaning property of the tableware is improved by the predetermined intervals provided between the tableware.

The drive means 33 is electrically connected to the control panel 18, and the drive shaft 34 is rotated by the drive means 33, which is a motor, by a signal from the control panel 18, and the power thereof is transferred via the drive shaft 34. Tell to the door arm 32 of 2. In the right side view of the cleaning device 1, the second door arm 32 rotates about the central axis of the drive shaft 34 in the clockwise direction (clockwise), and the second door arm 32 is further connected to the first door arm 32. The door arm 31 is raised, and the door portion 11 connected from the first door arm 31 is raised in the vertical direction while being guided by the guide member 36, so that the door portion 11 is opened.

Further, by pressing the operation start button (not shown) from the state where the door portion 11 is opened, the drive means 33 of the cleaning device 1 causes the drive shaft 34 to rotate counterclockwise (in the right direction) by the signal from the control panel 18. It can be rotated counterclockwise) to lower the door portion 11 in the vertical direction and close the door portion 11. After closing the door portion 11, the door portion 11 is in a state where a force for raising the door portion 11 in the vertical direction is applied by the elastic member 35, but the force for raising the door portion 11 of the elastic member 35 in the vertical direction is greater than the force for raising the door portion 11 in the vertical direction. Since the mass is larger, the door portion 11 is held in the closed state.

The door opening / closing means may open / close the door portion 11 by appropriately combining a cylinder, a chain, a pinion, a rack, or the like.

The cleaning device 1 may include a lock mechanism that locks the door portion 11 in an open state or a closed state. When a lock mechanism for locking the door portion 11 in an open state is provided, it is possible to prevent the door portion 11 from being accidentally closed, for example, while the rack R is housed in the cleaning chamber 30.

Further, when the lock mechanism for locking the door portion 11 in the closed state is provided, for example, the door portion 11 is opened while the washing water and the fresh water are being sprayed in the washing chamber 30, and the washing water and the fresh water are discharged into the washing chamber 30. It is possible to prevent the operator from being splashed with cleaning water and fresh water, which jumps out from the door and wets the floor of the facility where the cleaning device 1 is installed.

Further, it is preferable that the lock mechanism is controlled by the control panel 18 so as to release the lock according to the operation operation of the cleaning device 1. Further, the cleaning device 1 may include either or both of a lock mechanism that locks the door portion 11 in an open state and a lock mechanism that locks the door portion 11 in a closed state.

When the door portion 11 is lowered in the vertical direction to be in a closed state, the door stopper 16 provided on the door left side surface portion 12b and the door right side surface portion 12c is the cleaning device 1 before the door portion 11 comes into contact with the partition member 6. Contact the partition member 6. Since the door stopper 16 is made of an elastic member, the sound generated when the door portion 11 contacts the partition member 6 is suppressed, and the door portion 11 vigorously contacts the partition member 6 to prevent damage. can do.

Further, the rack support portion 37 that supports the rack R housed in the washing chamber 30 from below includes a water return plate portion 101a on the front side, a water return plate portion 101b on the left side surface, and a water return plate portion 101b on the right side, which are water return plate portions 100 described later. A metal fitting having an L-shaped cross section (shown), which is configured to be integrated with the surface-side water return plate portion 101c (see FIG. 11A) and has the water return plate portion 100 attached to the inside of the frame 5 of the cleaning device 1. (None), and it is removable from the washing room 30.

(Structure of finishing rinse system)
Next, the configuration of the finishing rinsing system will be described with reference to FIGS. 4, 5, 6, 7, 7, and 10.

As shown in FIGS. 5, 6 and 7 (a), the base 23 has a substantially rectangular parallelepiped shape that stores a predetermined amount, for example, 9 liters of fresh water in the center when viewed from the front side, and the upper part is viewed from the front. A finishing rinse tank 40 having a triangular shape is provided. The finishing rinsing tank 40 is connected to the water supply, and for example, the water supply unit 41 that supplies fresh water from the upper part of the finishing rinsing tank 40 by opening the on-off valve 42, which is an electromagnetic valve that controls opening and closing by a signal from the control panel 18. When the fresh water stored in the finishing rinse tank 40 exceeds a predetermined water level, the overflow pipe 43 that overflows the fresh water from the opening (unsigned) and drains the water, and the drain valve (drainage section) 49c are opened for finishing. The drain port (drainage section) 49a that drains the fresh water stored in the rinse tank 40 through the drainage pipe (drainage section) 49b and the fresh water stored in the finishing rinse tank 40 are heated and kept at a predetermined temperature, for example, about 85 ° C. A first heating means (heating means) 44, a second heating means (heating means) 45, a full water sensor 46 that detects the water level when the fresh water stored in the finishing rinsing tank 40 is full, and a finishing rinsing tank. A temperature sensor 47 for measuring the temperature of fresh water stored in 40 is provided. The first heating means 44 is attached so as to be located above the second heating means 45.

The first heating means 44 and the second heating means 45 provided in the finishing rinsing tank 40 operate only when the full water sensor 46 detects that the fresh water stored in the finishing rinsing tank 40 is full, and the finishing rinsing tank 40 operates. The control panel 18 controls the fresh water stored in 40 to be heated and kept at a predetermined temperature, for example, about 85 ° C. This makes it possible to prevent the first heating means 44 and the second heating means 45 from being cooked in the air.

One end side of the drainage pipe 49b is connected to the drainage port 49a provided at the bottom of the finishing rinse tank 40. The other end of the drainage pipe 49b is connected to a drainage valve 49c, which is, for example, a manual on-off valve provided on the front side of the lower outer shell 20 of the cleaning device 1. By opening the drain valve 49c, fresh water is drained.

Further, from the finishing rinsing tank 40, the finishing rinsing pump (water feeding means) 50 is passed from the suction port 48, which is substantially the same height as the first heating means 44, to the finishing rinsing pipe (finishing rinsing pipe) 51a. From the finishing rinsing pump 50 to the second finishing rinsing pipe (finishing rinsing pipe) 51b.

Then, as shown in FIGS. 4A, 4B, and 5, the second finishing rinsing pipe 51b continues to the third finishing rinsing pipe (finishing rinsing pipe) 51c, which will be described later. A rotary shaft portion that is a hollow shaft member that is connected to a connection portion (fitting portion) 52a having a flow path inside through the main cleaning pipe (main cleaning pipe) 71d and extends downward from the connection portion 52a. It is connected to the finishing rinse nozzle (finishing rinse nozzle) 53 through the (fitting portion) 52b.

Further, from the third finishing rinsing pipe 51c, the fourth finishing rinsing pipe (finishing rinsing pipe) 51d branches in the horizontal direction, and the fourth finishing rinsing pipe 51d is the fifth main cleaning pipe (described later). This cleaning pipe) is connected to a connecting portion 52a having an internal flow path penetrating the 71e, and is connected to a connecting portion 52a, and is passed through a rotating shaft portion 52b, which is a hollow shaft member extending above the connecting portion 52a. ) Connect to 54.

As shown in FIG. 9B, the upper connecting portion 52a is connected to the finishing rinsing nozzle 53 via a rotating shaft portion 52b having an internal flow path extending downward from the connecting portion 52a. As shown in FIG. 9A, a bolt or the like is used to hold the main cleaning nozzle (main cleaning nozzle) 72 and the finishing rinse nozzle 53, which will be described later, in a state of having a predetermined angle θ1, for example, 25 to 26 degrees. A plurality of bearings (not shown) are attached so as to sandwich the main cleaning upper nozzle 72 and the finishing rinse nozzle 53, and the main cleaning upper nozzle 72, the finishing rinse upper nozzle 53, and a plurality of bearings are attached. Is penetrated by the rotating shaft portion 52b, and a cap with a male screw (not shown) is attached from below to the female screw cut at the tip of the penetrating rotating shaft portion 52b to be sandwiched and fixed. As a result, the cleaning finishing nozzle 72 and the finishing rinsing nozzle 53 are fixed in a state of having a predetermined angle θ1, and are rotatably fixed to the rotating shaft portion 52b.

The cleaning finishing nozzle 72 and the finishing rinsing nozzle 53 are configured to be detachable from the rotating shaft portion 52b by removing the cap with the male screw from the rotating shaft portion 52b. As a result, the main cleaning upper nozzle 72 and the finishing rinse upper nozzle 53 can be easily removed from the rotary shaft portion 52b during the cleaning step of cleaning the cleaning device 1 described later.

Further, the finishing rinse nozzle 53 is composed of a long pipe with both ends closed, and the finishing rinse nozzle 53 is sprayed from both ends (one end side and the other end side) of the finishing rinse nozzle 53 from the finishing rinse nozzle 53. The rotary nozzle port that injects fresh water in the direction opposite to the rotation direction so that the finishing rinse nozzle 53 and the main cleaning nozzle 72 rotate counterclockwise (counterclockwise) due to the pressure of the fresh water. (Not shown) is open.

The finishing rinse upper nozzle 53 has a distance L1 and a distance to one end side from the central axis of the rotation shaft portion 52b to which the finishing rinse upper nozzle 53 is attached, on the lower side in the cross section in the direction orthogonal to the longitudinal direction of the finishing rinse upper nozzle 53. The nozzle opening 55 is opened at the position of L2 and the nozzle tip 56 is attached.

Further, on the other end side, a nozzle opening 55 is opened at the positions of the distance L3 and the distance L4, and the nozzle tip 56 is attached. As a result, when the finishing rinse upper nozzle 53 rotates and injects fresh water, the fresh water is directed toward the tableware from the circumference having the distance L1, the distance L2, the distance L3, and the distance L4 as the centers around the rotation shaft portion 52b. It is possible to spray fresh water almost evenly from above a plurality of tableware stored in the rack R.

The finishing rinse upper nozzle 53 has a distance L5 and a distance from the central axis of the rotation shaft portion 52b to which the finishing rinse upper nozzle 53 is attached, on the upper side in the cross section in the direction orthogonal to the longitudinal direction of the finishing rinse upper nozzle 53. The nozzle opening 55 is opened at the position of L6 and the nozzle tip 56 is attached. Further, a nozzle opening 55 is opened at a position of a distance L7 on the other end side, and the nozzle tip 56 is attached.

As a result, when the finishing rinsing nozzle 53 rotates to inject fresh water, the fresh water is poured from the circumference having the distance L5, the distance L6, and the distance L7 as the center of the rotation shaft portion 52b on the ceiling surface of the washing chamber 30. That is, fresh water is sprayed toward the lower surface of the upper surface plate portion 13 (see FIG. 1) to wash away the washing water and the like adhering to the lower surface of the upper surface plate portion 13.

As shown in FIG. 10B, the lower connecting portion 52a is finished via a rotating shaft portion (fitting portion) 52b, which is a shaft member having an internal flow path extending upward from the connecting portion 52a. Connect to 54. Further, as shown in FIG. 10A, the main cleaning nozzle (main cleaning nozzle) 73 and the finishing rinse nozzle 54, which will be described later, are held in a state of having a predetermined angle θ3, for example, 25 to 26 degrees. Fix it with a bolt or the like, attach a plurality of bearings (not shown) so as to sandwich the main cleaning lower nozzle 73 and the finishing rinse nozzle 54, and attach the main cleaning lower nozzle 73 and the finishing rinse nozzle 54, and a plurality of bearings. The bearing is penetrated by the rotating shaft portion 52b, and a cap with a male screw (not shown) is attached from above to the female screw cut at the tip of the penetrating rotating shaft portion 52b to be sandwiched and fixed. As a result, the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are fixed in a state of having a predetermined angle θ3, and are rotatably fixed to the rotating shaft portion 52b.

The cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are configured to be detachable from the rotating shaft portion 52b by removing the cap with the male screw from the rotating shaft portion 52b. As a result, the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 can be easily removed from the rotary shaft portion 52b during the cleaning step of cleaning the cleaning device 1 described later.

Further, the finishing rinse lower nozzle 54 is composed of a long pipe with both ends closed, and the finishing rinse lower nozzle 54 is sprayed from both ends (one end side and the other end side) of the finishing rinse lower nozzle 54 from the finishing rinse lower nozzle 54. A rotary nozzle port that injects fresh water in the direction opposite to the rotation direction so that the finishing rinse lower nozzle 54 and the main cleaning lower nozzle 73 rotate in the clockwise direction (clockwise) in the top view due to the pressure of the fresh water. (Not shown) is open.

The finishing rinse lower nozzle 54 has a distance L8 and a distance from the central axis of the rotation shaft portion 52b to which the finishing rinse lower nozzle 54 is attached, on the upper side in the cross section in the direction orthogonal to the longitudinal direction of the finishing rinse lower nozzle 54. Nozzle openings 55 are opened at positions L9, distance 10 and distance L11, and the nozzle tip 56 is attached. Further, on the other end side, a nozzle opening 55 is opened at the positions of the distance L12 and the distance L13, and the nozzle tip 56 is attached.

As a result, when the finishing rinsing nozzle 54 rotates to inject fresh water, the distance L8, the distance L9, the distance L10, the distance L11, the distance L12, and the distance 13 are the radii of the circumference around the rotation shaft portion 52b. The fresh water can be sprayed toward the tableware from below, and the fresh water can be sprayed almost evenly from below the plurality of tableware stored in the rack R.

The rotation direction for tightening the male screw of the cap screwed to the above-mentioned rotation shaft portion 52b is a predetermined rotation of the finishing rinse upper nozzle 53 and the main cleaning upper nozzle 72, the finishing rinse lower nozzle 54, and the main cleaning lower nozzle 73. Even if the finishing rinse upper nozzle 53 and the finishing rinse lower nozzle 54 rotate in the same direction as the direction, the male screw of the cap screwed to the rotating shaft portion 52b does not loosen.

(Structure of this cleaning system)
Next, the configuration of this cleaning system will be described with reference to FIGS. 4, 5, 6, 7, 7, and 10.

As shown in FIGS. 5, 6 and 7 (b), the base 23 is provided with a substantially rectangular parallelepiped main washing tank 60 for storing a predetermined amount, for example, 26 liters of washing water on the right side when viewed from the front side. It is provided. On the side surface side of the main cleaning tank 60, an outflow opening 87 provided on the side surface side of the circulation rinsing tank 80, which will be described later, an inflow opening 69 communicating via a flow pipe 25, and cleaning water flowing from the cleaning chamber 30 are provided. By opening the strainer 65 that separates the dirt and leftovers contained in the cleaning water from the washing water and the drain valve (draining part) 68b, the washing water stored in the main washing tank 60 is drained through the drain pipe (draining part) 68c. The drain port (drainage section) 68a, the overflow pipe 61 that overflows the wash water stored in the main wash tank 60 from the opening (unsigned) and drains the water, and the wash water stored in the main wash tank 60 at a predetermined temperature, for example. A third heating means (heating means) 62 that heats and retains heat at 55 to 70 degrees C, a full water sensor 63 that detects the water level when the wash water stored in the main wash tank 60 is full, and a main wash tank. A temperature sensor 64 for measuring the temperature of the washing water stored in the water 60 is provided.

The third heating means 62 provided in the main cleaning tank 60 operates only when the main cleaning tank 60 is filled with the cleaning water by the control panel 18, and the cleaning water stored in the main cleaning tank 60 is stored in the main cleaning tank 60. The temperature is controlled to heat and retain to, for example, 55-70 degrees C.

As shown in FIGS. 4B and 5, the inflow opening 69 provided in the main cleaning tank 60 is located on the right side of the main cleaning tank 60 in the rear view of the cleaning device 1, and is a rinsing tank that circulates through the flow pipe 25. It communicates with the outflow opening 87 of 80. Since the inflow opening 69 of the main cleaning tank 60 is located below the outflow opening 87 of the circulation rinse tank 80, the flow pipe 25 has a gradient and exceeds a predetermined water level stored in the circulation rinse tank 80. The washed water is flowed from the outflow opening 87 of the circulating rinse tank 80 to the main washing tank 60 through the inflow opening 69 via the flow pipe 25.

Further, the flow tube 25 has a cross-sectional shape orthogonal to the longitudinal direction having a rectangular shape with the horizontal direction as the longitudinal direction, and its base is configured to coincide with the substantially horizontal direction. In addition, the shapes of the outflow opening 87 and the inflow opening 69 substantially match the cross-sectional shape of the flow pipe 25. As a result, when the washing water stored in the circulating rinse tank 80 exceeds a predetermined water level, more washing water flows into the main washing tank 60 at an earlier timing than in the case of other cross-sectional shapes. Can be made to.

As will be described later, the washing water flowing into the main washing tank 60 has a predetermined water level higher than the full water level of the washing water stored in the main washing tank 60, and the washing water having reached the predetermined water level is Overflow from the opening (unsigned) of the overflow pipe 61. Further, the opening of the overflow pipe 61 is located at a height lower than that of the inflow opening 69, and is configured so that the washing water flowing through the inflow pipe 25 does not flow back into the circulating rinse tank 80.

As shown in FIGS. 5 and 7B, the strainer 65 provided in the main cleaning tank 60 has a cylindrical shape with the upper and lower sides open, and is detachable from the main cleaning tank 60. As a substantially rectangular parallelepiped shape whose upper part is substantially rectangular when viewed from above, the side surface side is cut out in a rectangular shape so that the switching plate 124 described later enters the upper part of the strainer 65, and the area continuous from the upper part is directed downward. As a shape of a quadrangular pyramid to be made smaller, the whole is composed of a punching plate which is a perforated plate.

The tip of the quadrangular pyramid at the lower part of the strainer 65 has a horizontally cut shape and is open downward, and the opened portion is connected to the drain port 68a provided on the bottom surface of the main cleaning tank 60. As a result, dirt, leftovers, and the like stored in the strainer 65 can be drained from the drain port 68a together with the washing water from below the strainer 65.

The drainage port 68a provided at the bottom of the cleaning tank 60 is connected to one end side of the drainage pipe 68c provided with the drainage valve 68b. The drain valve 68b provided in the drain pipe 68c is, for example, a solenoid valve that controls opening and closing by a signal from the control panel 18, and opens and closes by receiving a signal from the control panel 18. The other end side of the drainage pipe 68c is installed toward the leftovers receiving portion 130 provided below the base portion 23 of the lower outer shell body 20. The leftovers receiving portion 130 will be described later.

A suction port 66 is provided on the bottom surface of the main cleaning tank 60, and is laterally displaced from the drain port 68a connected from the open side of the tip of the quadrangular pyramid at the bottom of the strainer 65. The suction port 66 is connected to the main cleaning pump (water supply means) 70 via the first main cleaning pipe (main cleaning pipe) 71a, and the main cleaning pump 70 to the second main cleaning pipe (main cleaning pipe). ) Continue to 71b.

Further, a crank-shaped straightening vane (rectifying portion) 67 manufactured by bending a sheet metal is attached to a suction port 66 provided on the bottom surface of the main cleaning tank 60. When the cleaning water stored in the main cleaning tank 60 is sucked into the suction port 66 by starting the main cleaning pump 70, the rectifying plate 67 is sucked into the suction port 66 by the flat surface on one end side of the crank shape of the rectifying plate 67. It is possible to prevent the generation of vortices created by the flow of the washing water to be spilled, and to suppress the air swelling of the main washing pump 70. As a result, stable water supply can be performed by the main cleaning pump 70.

Then, as shown in FIGS. 4A and 4B, the second main cleaning pipe 71b is connected to the third main cleaning pipe (main cleaning pipe) 71c having a rectangular cross-sectional shape. Then, it bends horizontally above the cleaning chamber 30 and continues to the fourth main cleaning pipe (main cleaning pipe) 71d having a rectangular cross-sectional shape, and from the fourth main cleaning pipe 71d to the main cleaning upper nozzle 72. Connect to.

Further, from the third main cleaning pipe 71c, the fifth main cleaning pipe 71e having a rectangular cross-sectional shape branches in the horizontal direction, and the fifth main cleaning pipe 71e passes under the cleaning chamber 30. Connect to the cleaning nozzle 73.

Further, the third main cleaning pipe 71c, the fourth main cleaning pipe 71d, and the fifth main cleaning pipe 71e for flowing the cleaning water have a rectangular cross-sectional shape. Further, the space for arranging the pipes provided on the back side of the cleaning device 1 is formed in a rectangular shape when viewed from above.

As a result, the cross-sectional area of the flow path through which the washing water flows can be increased even in a limited space as compared with the case where the cross-sectional shape is another shape (for example, a circular shape). The flow rate of the washed water discharged can be increased, and the space of the washing device 1 can be saved.

In addition to the third main cleaning pipe 71c, the fourth main cleaning pipe 71d, and the fifth main cleaning pipe 71e having a rectangular cross-sectional shape, the first main cleaning pipe 71a and the second main cleaning pipe 71b are also The cross-sectional shape may be rectangular.

However, due to the structure of the cleaning device 1, the first main cleaning pipe 71a and the second main cleaning pipe 71b tend to be bent in a direction having an angle from the pipe length direction, and can be manufactured by making the cross-sectional shape rectangular. It can be difficult. Therefore, it is preferable that the first main cleaning pipe 71a and the second main cleaning pipe 71b have a circular cross-sectional shape that is easily bent from the pipe length direction to an angled direction. Further, by making the cross-sectional shape circular, it is possible to reduce the pressure loss due to the piping resistance at the bent portion.

As shown in FIG. 9B, the fourth main cleaning pipe 71d is connected to the main cleaning nozzle 72 via the upper connection opening 76. As shown in FIG. 9A, the main cleaning nozzle 72 and the finishing rinse nozzle 53 are fixed with bolts or the like so as to hold the main cleaning nozzle 72 and the finishing rinse nozzle 53 in a state having a predetermined angle θ1, and the main cleaning nozzle 72 and the finishing rinse are fixed. A plurality of bearings (not shown) are attached so as to sandwich the upper nozzle 53, and the main cleaning upper nozzle 72, the finishing rinse upper nozzle 53, and the plurality of bearings are penetrated by the rotating shaft portion 52b, and the rotation is penetrated. A cap with a male screw (not shown) is attached to the female screw cut at the tip of the shaft portion 52b from below, and is sandwiched and fixed. As a result, the central axis of rotation of the main cleaning nozzle 72 and the finishing rinse nozzle 53 is coaxial, fixed with a predetermined angle θ1, and rotatably fixed to the rotating shaft portion 52b. ..

Further, as shown in FIG. 9B, the main cleaning nozzle 72, which is hollow and has a flow path inside, has a plurality of hemispherical protrusions 74 on the lower side in a cross section in a direction orthogonal to the longitudinal direction. Have. As shown in FIG. 9A, the plurality of hemispherical protrusions 74 are provided at intervals in the longitudinal direction of the nozzle 72 for main cleaning, and the plurality of hemispherical protrusions 74 are provided with slit-shaped holes. , A plurality of nozzle openings 75 are formed.

The plurality of nozzle openings 75, which are slit-shaped holes, are uniformly opened with a predetermined angle θ2, for example, 25 to 26 degrees from the longitudinal direction of the main cleaning nozzle 72, and are uniformly opened with the main cleaning nozzle 72. Since the finishing rinse upper nozzle 53 is fixed in a state of having the same predetermined angle θ1 as the predetermined angle θ2 which is the inclination of the plurality of nozzle openings 75, the plurality of nozzle openings 75 of the main cleaning nozzle 72 are used. It is possible to prevent the sprayed washing water from coming into contact with the finishing rinse nozzle 53.

Further, on both end sides (one end side and the other end side) of the main cleaning upper nozzle 72, the main cleaning upper nozzle 72 and the finishing rinse upper nozzle 53 are viewed from above due to the pressure of the washing water sprayed from the main cleaning upper nozzle 72. A rotary nozzle port (not shown) for injecting washing water is opened on the opposite side of the rotation direction so as to rotate in the counterclockwise direction (counterclockwise).

The plurality of hemispherical protrusions 74 included in the main cleaning nozzle 72 are located at a distance L14, a distance L15, and a distance 16 on one end side from the central axis of the rotation shaft portion 52b to which the main cleaning nozzle 72 is attached. Further, the other end side has a distance L17 and a distance L18. A plurality of nozzle openings 75 are opened in each of the plurality of hemispherical protrusions 74.

As a result, when the cleaning nozzle 72 rotates to inject cleaning water, the cleaning is performed from the circumference having the distance L14, the distance L15, the distance L16, the distance L17, and the distance L18 as the center of the rotating shaft portion 52b. Water can be sprayed toward the tableware, and the washing water can be sprayed almost evenly from above the plurality of tableware stored in the rack R.

The predetermined angle θ2, which is the inclination of the plurality of nozzle openings 75 of the main cleaning nozzle 72, and the predetermined angle θ1 to which the main cleaning nozzle 72 and the finishing rinse nozzle 53 are fixed are examples. Any angle may be used as long as the cleaning water sprayed from the cleaning nozzle 72 does not come into contact with the finishing rinsing nozzle 53.

Further, even if the predetermined angle θ1 in which the main cleaning nozzle 72 and the finishing rinse nozzle 53 are fixed and the predetermined angle θ2 which is the inclination of the plurality of nozzle openings 75 of the main cleaning nozzle 72 are different from each other. good.

Further, as shown in FIG. 10B, the fifth main cleaning pipe 71e is connected to the main cleaning lower nozzle 73 via the lower connection opening 76. As shown in FIG. 10A, the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are fixed with bolts or the like so as to hold them at a predetermined angle θ3, and the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are fixed. A plurality of bearings (not shown) are attached so as to be sandwiched between the main cleaning lower nozzle 73, the finishing rinse lower nozzle 54, and the plurality of bearings are penetrated by the rotating shaft portion 52b, and the rotating shaft portion 52b is penetrated. A cap with a male screw (not shown) is attached to the female screw cut at the tip from above and sandwiched to fix it. As a result, the central axis of rotation between the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 is coaxial, fixed with a predetermined angle θ3, and rotatably fixed to the rotating shaft portion 52b. ..

Further, as shown in FIG. 10B, the main cleaning nozzle 73, which is hollow and has a flow path inside, has a plurality of hemispherical protrusions 74 on the upper side in a cross section in a direction orthogonal to the longitudinal direction. Have. As shown in FIG. 10A, the plurality of hemispherical protrusions 74 are provided at intervals in the longitudinal direction of the nozzle 73 under the main cleaning, and the plurality of hemispherical protrusions 74 are provided with slit-shaped holes. , A plurality of nozzle openings 75 are formed.

The plurality of nozzle openings 75, which are slit-shaped holes, are uniformly opened with a predetermined angle θ4, for example, 25 to 26 degrees from the longitudinal direction of the main cleaning lower nozzle 73, and are uniformly opened with the main cleaning lower nozzle 73. Since the finishing rinse lower nozzle 54 is fixed in a state of having the same predetermined angle θ3 as the inclination of the plurality of nozzle openings 75, the cleaning water jetted from the plurality of nozzle openings 75 of the main cleaning lower nozzle 73 is finished. Contact with the rinsing nozzle 54 can be avoided.

Further, on both ends (one end side and the other end side) of the main cleaning lower nozzle 73, the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are viewed from above due to the pressure of the washing water sprayed from the main cleaning lower nozzle 73. A rotary nozzle port (not shown) for injecting washing water is opened on the opposite side of the rotation direction so as to rotate in the clockwise direction (clockwise).

The plurality of hemispherical protrusions 74 included in the main cleaning nozzle 73 are located at a distance L19, a distance 20, a distance 21, and a distance L22 on one end side from the central axis of the rotating shaft portion 52b. Further, the other end side has a distance L23, a distance L24, and a distance L25. A plurality of nozzle openings 75 are opened in each of the plurality of hemispherical protrusions 74.

As a result, when the main cleaning lower nozzle 73 rotates to inject cleaning water, the distance L19, the distance L20, the distance L21, the distance L22, the distance L23, the distance L24, and the distance L25 are defined as the radius around the rotating shaft portion 52b. The washing water can be sprayed toward the tableware from above the circle, and the washing water can be sprayed almost evenly from below the plurality of tableware stored in the rack R.

The cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are configured to be detachable from the rotating shaft portion 52b by removing the cap with the male screw from the rotating shaft portion 52b. As a result, the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 can be easily removed from the rotary shaft portion 52b during the cleaning step of cleaning the cleaning device 1 described later.

The predetermined angle θ3 to which the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are fixed and the predetermined angle θ4 which is the inclination of the plurality of nozzle openings 75 of the main cleaning lower nozzle 73 are examples. Any angle may be used as long as the cleaning water sprayed from the cleaning nozzle 73 does not come into contact with the finishing rinse nozzle 54.

Further, even if the predetermined angle θ3 to which the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are fixed and the predetermined angle θ4 which is the inclination of the plurality of nozzle openings 75 of the main cleaning lower nozzle 73 are different. good.

(Composition of circulating rinse system)
Next, the configuration of the circulation rinsing system will be described with reference to FIGS. 4, 5, 6, 7, 7, 8, 9, and 10.

As shown in FIGS. 5, 6 and 7 (c), the base 23 is provided with a circulation rinsing tank 80 for storing a predetermined amount, for example, 16 liters of washing water on the left side when viewed from the front side. The circulation rinse tank 80 has an inflow opening 69 of the main cleaning tank 60, an outflow opening 87 that communicates with the flow pipe 25, and dirt and residue adhering to the tableware contained in the washing water that falls and flows from the washing chamber 30. Circulation with a strainer 84 that separates vegetables and the washing water, and a drain port (draining part) 86a that drains the washing water stored in the circulating rinse tank 80 through the drain pipe 86c by opening the drain valve (draining part) 86b. The fourth heating means (heating means) 81 that heats and retains the wash water stored in the rinse tank 80 to a predetermined temperature, for example, 60 to 85 degrees C, and the wash water stored in the circulating rinse tank 80 are full. A full water sensor 82 for detecting the current water level and a temperature sensor 83 for measuring the temperature of the washing water stored in the circulating rinsing tank 80 are provided.

The fourth heating means 81 provided in the circulating rinsing tank 80 operates only when the circulating rinsing tank 80 is filled with washing water by the control panel 18, and the washing water stored in the circulating rinsing tank 80 is predetermined. It is controlled to heat and keep warm to the temperature.

As shown in FIGS. 4B and 5, the outflow opening 87 provided on the side surface side of the circulation rinse tank 80 is located on the left side of the circulation rinse tank 80 in the rear view of the cleaning device 1, and is located on the left side of the circulation rinse tank 80 via the flow pipe 25. It is connected to the inflow opening 69 located on the right side of the main cleaning tank 60.

Since the outflow opening 87 of the circulation rinse tank 80 is located above the inflow opening 69 of the main washing tank 60, the flow pipe 25 has a gradient, and the washing of the predetermined water level stored in the circulation rinse tank 80 is performed. Water is flowed from the outflow opening 87 of the circulation rinse tank 80 to the main cleaning tank 60 from the inflow opening 69 through the flow pipe 25.

The strainer 84 provided in the circulation rinsing tank 80 shown in FIGS. 5 and 7 (c) is removable from the circulation rinsing tank 80. As a rectangular parallelepiped shape in which the upper part is substantially rectangular in top view, the side surface side is cut out in a rectangular shape so that the switching plate 124 described later enters the upper part of the strainer 84, and the lower part continuous from the upper part is opposed to each other in the upper surface cross-sectional view. Is shortened downward to form a trapezoidal shape when viewed from the side. The upper part and the lower part are continuous, and the outer side and the bottom surface are composed of a punching plate which is a perforated plate with the upper part open. By making the lower horizontal side shorter than the upper horizontal side in the trapezoidal side view, it is possible to avoid interference with the full water sensor 82 and the temperature sensor 83 provided in the circulation rinsing tank 80.

The drainage port 86a provided at the bottom of the circulation rinse tank 80 is connected to one end side of the drainage pipe 86c provided with the drainage valve 86b. The drain valve 86b provided in the drain pipe 86c is, for example, a solenoid valve that controls opening and closing by a signal from the control panel 18, and opens and closes by receiving a signal from the control panel 18. The other end side of the drainage pipe 86c is installed toward the leftovers receiving portion 130 provided below the base portion 23 of the lower outer shell body 20. The leftovers receiving portion 130 will be described later.

A suction port 85 is provided on the bottom surface of the circulation rinsing tank 80, and the position is shifted in the horizontal direction from the drain port 86a. The suction port 85 is connected to the circulation rinsing pump (water supply means) 90 via the first circulation rinsing pipe (circulation rinsing pipe) 91a, and the circulation rinsing pump 90 to the second circulation rinsing pipe (circulation rinsing pipe). ) Continue to 91b.

Then, as shown in FIGS. 4A and 4B, the second circulation rinsing pipe 91b is connected to the third circulation rinsing pipe (circulation rinsing pipe) 91c having a rectangular cross-sectional shape. Then, it continues to the fourth circulation rinsing pipe (circulation rinsing pipe) 91d having a rectangular cross-sectional shape extending in the horizontal direction near the upper end of the third circulation rinsing pipe 91c.

The fourth circulation rinsing pipe 91d continues to the fifth circulation rinsing pipe (circulation rinsing pipe) 91e that branches upward into two, and each fifth circulation rinsing pipe 91e passes above the cleaning chamber 30. Each is connected to two circulation rinse upper nozzles (circulation rinse nozzles) 93.

Further, from the third circulation rinsing pipe 91c, the seventh circulation rinsing pipe 91f, which has a rectangular cross-sectional shape extending in the horizontal direction, branches to the sixth circulation rinsing pipe (circulation rinsing pipe) 91f, and further branches downward into two. Following the circulation rinse pipe (circulation rinse pipe) 91 g, the two seventh circulation rinse pipes 91 g pass below the cleaning chamber 30. Then, each of the two seventh circulation rinse pipes 91g is connected to each of the two circulation rinse bottom nozzles (circulation rinse nozzles) 94 via the nozzle connection portion (circulation rinse pipe) 92.

Further, the third circulation rinsing pipe 91c, the fourth circulation rinsing pipe 91d, and the sixth circulation rinsing pipe 91f for flowing the washing water have a rectangular cross-sectional shape. Further, the space for arranging the pipes provided on the back side of the cleaning device 1 is formed in a rectangular shape when viewed from above.

As a result, the cross-sectional area of the flow path through which the washing water flows can be increased even in a limited space as compared with the case where the cross-sectional shape is another shape (for example, a circular shape), and the circulation rinsing pump 90 described later can be increased. The flow rate of the washed water discharged can be increased. As a result, the space of the cleaning device 1 can be saved.

In addition, the first circulation rinse pipe 91a, the second circulation rinse pipe 91b, other than the third circulation rinse pipe 91c, the fourth circulation rinse pipe 91d, and the sixth circulation rinse pipe 91f having a rectangular cross-sectional shape, The seventh circulation rinsing pipe 91g may also have a rectangular cross-sectional shape.

However, due to the structure of the cleaning device 1, the first circulation rinsing pipe 91a, the second circulation rinsing pipe 91b, and the seventh circulation rinsing pipe 91g tend to be bent in a direction having an angle from the pipe length direction, and have a cross-sectional shape. Making it rectangular may make it difficult to manufacture. Therefore, the first circulation rinsing pipe 91a, the second circulation rinsing pipe 91b, and the seventh circulation rinsing pipe 91g have a circular cross-sectional shape that is easily bent from the pipe length direction to an angled direction. Is preferable. Further, by making the cross-sectional shape circular, it is possible to reduce the pressure loss due to the piping resistance at the bent portion.

As shown in FIG. 9A, the two circulation rinse upper nozzles 93 attached to the upper part of the cleaning chamber 30 so as to be positioned in the longitudinal direction in the substantially horizontal direction are connected to the fifth circulation rinse pipe 91e near one end. Connected and closed on both ends (one end and the other end). Holes are provided downward at intervals in the longitudinal direction, a plurality of nozzle openings 95 are formed, and a plurality of nozzle tips 96 are attached.

Further, as shown in FIG. 10A, the seventh circulation rinsing pipe 91g is connected to the circulation rinsing nozzle 94. The circulation rinse lower nozzle 94 is connected by inserting and connecting one end side to the nozzle connection portion 92 which is the end surface of the seventh circulation rinse pipe 91g so as to be detachable, and the other end side is branched into three, respectively. It is fixed to the front side water return plate portion 101a, which is the water return plate portion 100 described later. The three-branched circulation rinse nozzles 94 are spaced in the longitudinal direction and have holes facing upward to form a plurality of nozzle openings 95.

In addition, although it was explained that the two circulation rinse nozzles 94 are branched into three, spaced in the longitudinal direction, and holes are provided upward to form a plurality of nozzle openings 95, the two circulation rinse nozzles 94 are formed. The nozzles 94 may be configured by one without branching each. In that case, it is preferable to form a plurality of nozzle openings 95 by providing holes at a plurality of angles in the upper direction in a plurality of directions at intervals in the longitudinal direction of the circulating rinse bottom nozzle 94.

The plurality of nozzle openings 95 in the circulation rinse upper nozzle 93 and the circulation rinse lower nozzle 94 are, for example, circular, but may also have a rectangular shape, a triangular shape, or a slit shape. Further, nozzle tips may be attached to the plurality of nozzle openings 95. By changing the shape of the plurality of nozzle openings 95 or attaching nozzle tips, it is possible to inject cleaning water from the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle 94 from various angles, improving the cleaning performance of tableware. Can be done.

(Composition of water return plate, water collection part, switching part)
Next, the configuration of the water return plate portion 100 and the switching portion 120 will be described with reference to FIGS. 7, 11, and 12.

At the bottom of the cleaning chamber 30, as shown in FIG. 11A, a water return plate portion that returns water so as not to leak the cleaning water and fresh water from between the door portion 11 and the partition member 6 to the outside. Equipped with 100. The water return plate portion 100 attached to the inside of the frame 5 of the cleaning device 1 is composed of a front side water return plate portion 101a, a left side water return plate portion 101b, and a right side side water return plate portion 101c. The front water return plate portion 101a, the left side water return plate portion 101b, and the right side water return plate portion 101c are located inside the door portion 11 when the door portion 11 is closed. Install.

The front water return plate portion 101a, the left side water return plate portion 101b, and the right side water return plate portion 101c are a rack support portion 37 that supports the rack R housed in the cleaning chamber 30 from below. It is configured to be integrated with the circulation rinsing nozzle 94, is placed on a metal fitting having an L-shaped cross section attached to the inside of the frame 5 of the cleaning device 1, and is removable from the cleaning chamber 30.

The water return plate portion 100 guides the washing water and fresh water scattered in the washing chamber 30 to fall and flow to the water collecting portion 110 even if they are scattered toward the partition member 6. Further, a gap is formed between the front water return plate portion 101a and the left side water return plate portion 101b, and between the front side water return plate portion 101a and the right side water return plate portion 101c. , The washing water and the fresh water that scatter toward the inside of the door portion 11 and flow along the inside of the door portion 11 are guided to fall and flow to the water collecting portion 110 provided further below.

Further, as shown in FIG. 11B, below the water return plate portion 100, the cleaning water and fresh water sprayed in the cleaning chamber 30 are detachably attached to the frame 5 of the cleaning device 1 for guiding the cleaning water and fresh water downward. A water collecting unit 110 is provided. The water collecting portion 110 is formed of sheet metal and is mounted on the partition member 6 of the frame 5 so as to be detachable.

The water collecting portion 110 includes a side wall portion 111 standing in a substantially vertical direction, an inclined portion 112 that inclines downward toward the center side of the water collecting portion 110 in a top view, and a substantially center of the water collecting portion 110 in a top view. An opening 113 that opens downward from the water collecting portion 110, and an overhanging portion 114 that extends over the side wall portion 111 and the inclined portion 112 and has an opening continuous with the back surface side of the cleaning device 1 from the opening portion 113. Be prepared.

The overhanging portion 114 is provided to form a space for passing the fifth main cleaning pipe 71e and the fourth finishing rinsing pipe 51d arranged horizontally in the pipe length direction from the back surface side of the cleaning device 1. ..

The overhanging portion 114 has an opening continuous from the opening 113, but the water collecting portion 110 is a sheet metal having an opening (not shown) in the central portion in a top view provided in the horizontal direction from the partition member 6. It is installed on the top. Since the opening of the sheet metal accommodates the opening 113 of the water collecting portion 110, the structure is such that the cleaning water and fresh water do not leak from the overhanging portion 114 to the outside of the cleaning device 1.

The water collecting portion 110 may be formed of resin. As a result, it is possible to facilitate the removal and attachment of the water collecting portion 110 in the cleaning step described later, and to facilitate the cleaning of the cleaning device 1.

As shown in FIGS. 11 (c), 12 (a), and 12 (b), below the water collecting portion 110, there is a tank for cleaning water and fresh water that has fallen and flowed from the opening 113. A switching unit 120 for dropping and flowing to the main cleaning tank 60 or the circulation rinsing tank 80 is provided. Since FIGS. 12 (a) and 12 (b) show the configuration of the driving means 122 and the switching plate 124, some configurations are omitted.

The switching portion 120 includes a switching plate 124 that guides the flow of washing water and fresh water on a plate-shaped upper surface, a support portion 126 that detachably attaches and supports the switching plate 124, and a support portion 126 and a switching plate 124 that are driven by driving. It has a driving means 122 for changing the inclination of the switching plate 124, and a limit switch (sensor) 127 for detecting an inclined position of the switching plate 124.

As shown in FIGS. 12 (a) and 12 (b), the switching plate 124 is a plate-shaped member manufactured by bending a sheet metal, and one end side is circulated to the main cleaning tank 60 side or the other end side is circulated and rinsed. By tilting to the tank 80 side, the washing water and / or fresh water that has fallen and flowed from the opening 113 of the water collecting portion 110 is received on the upper surface, and is dropped and flowed to the main washing tank 60 or the circulating rinse tank 80.

The inclination of the switching plate 124 with respect to the horizontal direction is substantially the same angle as the inclination of the inclined portion 112 of the water collecting portion 110, so that the washing water and fresh water that fall and flow from the opening 113 of the water collecting portion 110 can be separated from the switching plate 124. It can be smoothly and surely dropped and flowed to the main cleaning tank 60 or the circulation rinsing tank 80.

Further, when viewed from the front, the switching plate 124 is provided on the triangular flow inclined portion 121 at the upper part of the finishing rinse tank 40. As a result, even if the washing water and the fresh water overflow from the switching plate 124, the washing water and the fresh water can be dropped and flowed to the main washing tank 60 or the circulating rinsing tank 80.

Further, the switching plate 124 has a folded-back portion (guidance means) 125 bent upward on both end sides (one end side and the other end side). By tilting the switching plate 124 toward the main cleaning tank 60 side or the circulation rinsing tank 80 side, the folding portion 125 is provided in the cleaning chamber 30 in the target one side of the main cleaning tank 60 or the circulation rinsing tank 80. It is possible to induce the washing water and the fresh water that are jetted and fall and flow, and to prevent the washing water and the fresh water from falling and flowing to the tank on the other side which is not intended. The details of the folded-back portion 125 will be described later.

A long contact portion 123 having a longitudinal direction arranged in a direction orthogonal to the central axis of the drive shaft is attached to a rotating drive shaft (not shown) of the drive means 122 which is a motor. Then, one end side of the contact portion 123 is extended to the main cleaning tank 60 side, and the other end side is extended to the circulation rinse tank 80 side. The contact portion 123 is tilted toward the main cleaning tank 60 side or the circulation rinse tank 80 side by driving the drive means 122 to rotate the drive shaft.

Further, the other end side of the drive shaft is fixed to the support portion 126 that supports the switching plate 124. By driving the drive means 122 and rotating the drive shaft, the inclination of the contact portion 123 changes, but at the same time, the inclination of the support portion 126 that supports the switching plate 124 also changes. Therefore, the inclination of the support portion 126 with respect to the horizontal direction, that is, the inclination of the switching plate 124 and the inclination of the contact portion 123 are configured to be the same.

When the drive means 122 is driven to rotate the drive shaft and the switching plate 124 is tilted toward the main cleaning tank 60, one end side of the contact portion 123 is the detection unit (unsigned) of the limit switch 127 on the main cleaning tank 60 side. ). Further, when the drive means 122 is driven to rotate the drive shaft and the switching plate 124 is tilted toward the circulation rinse tank 80, the other end side of the contact portion 123 is the detection unit of the limit switch 127 on the circulation rinse tank 80 side. Contact (unsigned).

The limit switch 127 sends a signal to the control panel 18 when the contact unit 123 comes into contact with the detection unit. Thereby, it is possible to detect by the limit switch 127 whether the switching plate 124 is tilted to the main cleaning tank 60 side or the circulation rinsing tank 80 side, and notify the control panel 18.

In the unlikely event that the contact portion 123 is in contact with the limit switch 127 on the unintended side, or the limit switch 127 on either side is not in contact for a predetermined time, wash the dishes. The control panel 18 is configured to stop and notify the operator who cleans the dishes by displaying an error and sounding a warning sound or the like.

In this way, the switching unit 120 can select and switch the selected tank, that is, the tank intended to cause the washing water and the fresh water to fall and flow.

The switching plate 124 shown by the alternate long and short dash line in FIGS. 7 (b) and 7 (c) indicates the position when the switching plate 124 is tilted toward the circulation rinsing tank 80. By tilting toward the cleaning tank 60, the strainer enters the inside of the notch provided at the upper part of the strainer 65 provided in the main cleaning tank 60, and by tilting the switching plate 124 toward the circulating rinse tank 80, the strainer provided in the circulating rinse tank 80. It goes inside the notch at the top of 84. That is, the width of the switching plate 124 is configured to be narrower than the width of the strainers 65 and 84.

The inclination of the switching plate 124 with respect to the horizontal direction may be obtuse than the inclination of the inclined portion 113 of the water collecting portion 110. In that case, the washing water and fresh water that fall and flow from the opening 113 of the water collecting portion 110 can be more smoothly dropped and flowed to the main washing tank 60 or the circulating rinsing tank 80 via the switching plate 124.

(Structure of leftovers receiving part)
Next, the configuration of the leftovers receiving portion 130 will be described with reference to FIGS. 6 and 13.

As shown in FIGS. 6, 13 (a) and 13 (b), a leftover dish receiving portion 130 is provided between the base 23 of the cleaning device 1 and the floor surface of the equipment. The leftovers receiving portion 130 includes a leftover basket 132 in which a punching plate, which is a perforated plate, is attached to the bottom surface side of a substantially rectangular frame material in the top view, and a sheet metal on the bottom surface side of the substantially rectangular frame material in the top view. It is composed of a drainage receiver 133 having a drainage port 134 connected to a drainage groove on the equipment side in a part of the sheet metal, and a support portion 131 that supports the leftover basket 132 and the drainage receiver 133 below the base 23. ing. The leftover basket 132 can be attached and detached by sliding from the support portion 131, and the drainage receiver 133 is fixed to the support portion 131.

The punching plate of the leftover basket 132 has a drainage side port of the drainage pipe 68c for draining the wash water stored in the main wash tank 60 and a drainage side of the drainage pipe 86c for draining the wash water stored in the circulation rinse tank 80. , The outlet on the drain side of the overflow pipe 61 of the main cleaning tank 60, the outlet on the drain side of the overflow pipe 43 of the finishing rinse tank 40, and the outlet of the drain pipe 49b of the finishing rinse tank 40 are arranged so as to face each other. do.

As a result, the wash water and fresh water drained from the respective drainage pipes 68c and 86c and the overflow pipes 43 and 61 are collected, leftovers and the like are separated by a punching plate and temporarily stored in the drainage receiver 133, and the drainage receiver 133 is used. From the drainage port 134 of the above to the drainage ditch on the equipment side.

Further, the overflow pipe 43 of the finishing rinsing pipe does not contain dirt, oil, leftovers, etc. adhering to the tableware, but by draining water from the overflow pipe 43 of the finishing rinsing pipe toward the punching plate, the cleaning device 1 can be used. The drainage route can be summarized.

(Regarding the falling flow of wash water and fresh water at the water collection part and switching part)
The falling flow of wash water and fresh water in the water collecting unit 110 and the switching unit 120 will be specifically described with reference to FIGS. 5, 7, 8, and 11.

The washing water and fresh water sprayed in the washing chamber 30 shown in FIG. 5 are sprayed onto the tableware stored in the rack R, and then come into contact with the tableware or the rack R in the washing room 30 without scattering or touching the tableware. It scatters, adheres to the inside of the door portion 11, and falls and flows downward. Alternatively, after being sprayed on the tableware stored in the rack R, it comes into contact with the tableware or the rack R in the washing chamber 30 and drops and flows downward as it is.

The washing water and fresh water that adhere to the inside of the door portion 11 and fall and flow downward pass between the door portion 11 and the water return plate portion 100, and the front side water return plate portion 101a shown in FIG. 11A. From the gap between the left side water return plate portion 101b and the front side water return plate portion 101a and the gap between the front side water return plate portion 101a and the right side water return plate portion 101c, the water falls and flows to the water collecting portion 110. Then, together with the washing water and the fresh water that have fallen and flowed directly to the water collecting portion 110, they fall and flow from the opening 113 to the switching portion 120.

The wash water and fresh water that have fallen and flowed from the opening 113 of the water collecting portion 110 to the switching portion 120 fall and flow on the switching plate 124 shown in FIG. 11 (c). Since the switching plate 124 drives the driving means 122 and is tilted toward the main cleaning tank 60 side or the circulation rinsing tank 80 side by rotating the drive shaft, the cleaning water and the cleaning water and the switching plate 124 are tilted toward the tilted side. Let the fresh water fall and flow.

As shown in FIGS. 7 (b) and 8 (a), when the switching plate 124 is tilted toward the main cleaning tank 60, one end side of the switching plate 124 has a side surface on the upper part of the strainer 65 of the main cleaning tank 60. Since it has entered the inside of the rectangular notch visually, the washing water and the fresh water flowing on the switching plate 124 fall and flow into the strainer 65 of the main washing tank 60.

Then, among the stains and leftovers contained in the washing water and fresh water, those larger than the eyes of the punching plate constituting the strainer 65 are collected inside the strainer 65 and smaller than the eyes of the punching plate. The washing water and the fresh water are stored inside and outside the strainer 65, that is, in the main washing tank 60.

The cleaning water and fresh water that have fallen and flowed into the strainer 65 of the main cleaning tank 60 are subjected to stains and leftovers that are larger than the eyes of the punching plate and stains and leftovers that are smaller than the eyes of the punching plate due to the strainer 65. Is separated into.

Further, as shown in FIGS. 7 (c) and 8 (b), when the switching plate 124 is tilted toward the circulation rinse tank 80, the other end side of the switching plate 124 is the upper part of the strainer 84 of the circulation rinse tank 80. Since it has entered the inside of the rectangular notch in the side view, the washing water and fresh water flowing on the switching plate 124 fall and flow into the strainer 84 of the circulation rinsing tank 80.

Then, among the oil, dirt, leftovers, etc. contained in the washing water and fresh water, those larger than the eyes of the punching plate constituting the strainer 84 are collected inside the strainer 84, and the oil and the eyes of the punching plate are collected. Smaller ones, wash water and fresh water fall down from the strainer 84 and flow down and are stored in the circulating rinse tank 80.

The washing water and fresh water that have fallen and flowed into the strainer 84 of the circulation rinsing tank 80 are subjected to stains and leftovers that are larger than the eyes of the punching plate and oils and stains and leftovers that are smaller than the eyes of the punching plate by the strainer 84. Is separated into.

Further, as shown in FIG. 8A, when the washing water and the fresh water are dropped and flowed on the switching plate 124 tilted toward the main washing tank 60 side, the washing water and the fresh water are discharged by the folded-back portion 125 provided on the switching plate 124. It is possible to prevent the water from falling and flowing into the circulating rinse tank 80.

Specifically, when the switching plate 124 is tilted toward the main cleaning tank 60, the cleaning water and fresh water that fall and flow to the switching plate 124 fall and flow to the main cleaning tank 60 side. However, depending on the momentum and direction of the washing water and the fresh water that fall and flow from the opening 113 at that time, the flow flows so as to increase the inclination of the switching plate 124, and a flow that tries to fall and flow to the circulating rinse tank 80 is also generated. The washing water and fresh water in the flow can be stopped by the folded-back portion 125 on the other end side so as not to fall and flow to the circulating rinse tank 80, and can be guided to the main washing tank 60 to fall and flow.

Further, when the switching plate 124 is tilted toward the circulation rinse tank 80, the momentum is stopped by the folded-back portion 125 on one end side so that the cleaning water and fresh water do not fall and flow to the main cleaning tank 60, and then to the circulation rinse tank 80. It can be guided to fall and flow.

As a result, the washing water and the fresh water having different cleanliness are controlled to fall and flow to the main washing tank 60 or the circulating rinsing tank 80, which is a tank for the purpose of washing water and fresh water, and in the movement of the washing device 1 described later, the washing water and the fresh water having different cleanliness are discharged. It is possible to prevent the cleanliness from being unintentionally lowered by suppressing the mixing with unintended washing water. Then, it is possible to prevent the washing property of the dishes by the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 from being unintentionally lowered.

The folded portion 125 is not limited to a shape in which both end sides (one end side and the other end side) of the switching plate 124 are folded back. For example, the momentum of the flow of wash water and fresh water can be controlled by providing unevenness on the upper surface of the side wall portion 111, the inclined portion 112, and the switching plate 124 of the water collecting portion 110 by attaching a plate material, embossing, or the like. , The flow may be guided.

(Movement of cleaning equipment)
Next, as a cleaning method using the cleaning device 1 of the present invention, the operation preparation step, the main cleaning step, the drainage step, the circulation rinsing step, the finishing rinsing step, the re-cleaning preparation step, and the cleaning step are described. explain.

First, the outline of each step will be described.

In the operation preparation step, when the power button (not shown) held on the control panel 18 is pressed with the door portion 11 closed, the on-off valve 42 of the water supply portion 41 is opened by the signal sent from the control panel 18 to the finish rinsing tank 40. Fresh water is stored and heated to a predetermined temperature by the first heating means 44 and the second heating means 45. Fresh water heated to a predetermined temperature is sucked and discharged by the finishing rinse pump 50 through the finishing rinse pipes 51a, 51b, 51c, 51d, and is ejected from the finishing rinse upper nozzle 53 and the finishing rinse lower nozzle 54 for a predetermined time.

While raising the temperature of the members in the cleaning chamber 30 with fresh water of a predetermined temperature sprayed for a predetermined time, the fresh water is dropped and flowed to the circulating rinse tank 80 and the main cleaning tank 60 via the switching plate 124 to flow the circulating rinse tank. Fill 80 and the main cleaning tank 60 with water.

Then, the door portion 11 is opened by the signal sent from the control panel 18 together with the warning sound sounded from the control panel 18. Then, when the operator accommodates the rack R containing a plurality of tableware in the cleaning chamber 30 and presses the cleaning start switch (not shown) provided on the control panel 18, the control panel 18 is accompanied by a warning sound sounding from the control panel 18. The door portion 11 is closed by the signal sent from.

In the main cleaning step performed after the operation preparation step, the cleaning water having a predetermined temperature stored in the main cleaning tank 60 is sucked and discharged by the main cleaning pump 70 through the main cleaning pipes 71a, 71b, 71c, 71d, 71e, and is discharged. The dishes are sprayed from the cleaning upper nozzle 72 and the main cleaning lower nozzle 73 toward the tableware stored in the rack R for a predetermined time. By causing the sprayed washing water to fall and flow to the main washing tank 60 via the switching plate 124, the washing water is circulated to perform the main washing to wash away dirt, oil, leftovers and the like adhering to the tableware.

In the drainage step performed after the main cleaning step, the drain valve 68b provided in the drainage pipe 68c of the main cleaning tank 60 is opened for a predetermined time by a signal sent from the control panel 18, so that the specified cleaning water stored in the main cleaning tank 60 is specified. Drain the amount of water. As a result, dirt, oil, leftovers, etc. adhering to the tableware stored in the main washing tank 60 are discharged from the main washing tank 60 together with the washing water.

In the circulation rinsing step performed after the drainage step, the switching plate 124 is left tilted toward the main cleaning tank 60, and the cleaning water of a predetermined temperature stored in the circulation rinsing tank 80 is passed through the circulation rinsing pipe by the circulation rinsing pump 90. It is sucked in and discharged, and is ejected from the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle 94 toward the tableware for a predetermined time. The sprayed washing water is dropped and flowed into the main washing tank 60 to fill the main washing tank 60 with water while washing away the washing water adhering to the tableware in the main washing step, dirt, oil, leftovers, etc. adhering to the tableware. do.

After the main cleaning tank 60 is full, the switching plate 124 is tilted toward the circulation rinse tank 80 while the circulation rinse pump 90 is being driven. Then, the sprayed washing water is dropped and flowed to the circulating rinse tank 80 via the switching plate 124 to circulate the washing water, and the washing water adhering to the tableware and dirt adhering to the tableware in this washing step are circulated. Perform a circulating rinse to wash away oil and leftovers.

In the finishing rinsing step performed after the circulating rinsing step, the switching plate 124 is left on the circulating rinsing tank 80 side, and fresh water having a predetermined temperature stored in the finishing rinsing tank 40 is sucked and discharged by the finishing rinsing pump 50 through the finishing rinsing pipe. Then, the dishes are sprayed from the finishing rinse upper nozzle 53 and the finishing rinse lower nozzle 54 toward the tableware for a predetermined time.

As a result, the sprayed fresh water is used for finishing rinsing to wash away the washing water adhering to the tableware. Then, while performing finishing rinsing, the water is dropped and flowed into the circulating rinsing tank 80, the water level of the washing water stored in the circulating rinsing tank 80 is raised to a predetermined water level, and the washing water is further transferred to the main washing tank 60 through the flow pipe 25. Make it flow.

When the washing water flows into the main washing tank 60, the washing water stored in the main washing tank 60 is drained from the overflow pipe 61 to the leftovers receiving portion 130 together with the oil content floating near the surface of the washing water. As a result, the oil floating near the surface of the washing water stored in the main washing tank 60, which was difficult to drain in the draining step, can be drained together with the washing water, and the cleanliness of the main washing tank 60 can be improved. can.

Then, after the injection of fresh water for a predetermined time is completed, the door portion 11 is opened by the signal sent from the control panel 18 together with the warning sound sounded from the control panel 18, and the operator takes out the rack R containing a plurality of tableware. ..

If the dishes are to be washed subsequently, a rewash preparation step is performed after the finishing rinse step. In the re-cleaning preparation step, the on-off valve 42 of the water supply unit 41 is opened by the signal sent from the control panel 18, fresh water is stored in the finishing rinse tank 40, and the temperature is determined by the first heating means 44 and the second heating means 45. With the door portion 11 open, the operator accommodates the rack R containing a plurality of tableware in the washing chamber 30 and closes the door portion 11. Then, the cleaning start switch on the control panel 18 is pressed again to move to the main cleaning step.

If you do not plan to wash the dishes for a long time after the finishing rinse step, perform the cleaning step after the finishing rinse step. In the cleaning step, the drain valve 68b of the main cleaning tank 60 and the drain valve 86b of the circulation rinse tank 80 are opened by a signal sent from the control panel 18, so that the cleaning water stored in the main cleaning tank 60 and the circulation rinse tank 80 is opened. Drain with dirt, oil, leftovers, etc. adhering to the tableware. Further, by manually opening the drain valve 49c of the finishing rinse tank 40, the fresh water stored in the finishing rinse tank 40 is drained.

Then, after the washing water and the drainage of fresh water are completed, the detachable members in the washing chamber 30, the main washing tank 60, and the circulation rinsing tank 80 are removed and carried to a sink or the like for cleaning. The cleaned removable member is attached to the cleaning device 1 to prepare for the next operation preparation step.

(Operation preparation step)
First, the operation preparation step will be specifically described with reference to FIGS. 14 and 15.

When the power button (not shown) on the control panel 18 is pressed, the drive shaft 34 of the drive means 33, which is the door opening / closing means, rotates with a warning sound from the control panel 18 from the state where the door portion 11 is opened. Then, the door portion 11 is lowered in the vertical direction by the first door arm 31 and the second door arm 32 to be closed.

When the door portion 11 is in the closed state, or when the door portion 11 is in the open state to the closed state, the on-off valve 42 of the water supply unit 41 is opened by the signal sent from the control panel 18, as shown in FIG. , Supply fresh water to the finishing rinse tank 40. When the switching plate 124 of the switching unit 120 is tilted toward the main cleaning tank 60, the driving means 122 is driven and tilted toward the circulating rinsing tank 80.

When the water level of the fresh water stored in the finishing rinsing tank 40 becomes high and the full water sensor 46 detects that the finishing rinsing tank 40 is full, the full water sensor 46 sends a signal to the control panel 18. Upon receiving the signal, the control panel 18 closes the on-off valve 42 of the water supply unit 41, stops the supply of fresh water to the finishing rinse tank 40, and operates the first heating means 44 and the second heating means 45. Heat the fresh water.

The temperature sensor 47 detects that the fresh water stored in the finishing rinse tank 40 has reached a predetermined temperature, for example, about 85 degrees C by the first heating means 44 and the second heating means 45, and the control panel 18 is reached. Send a signal. Upon receiving the signal, the control panel 18 stops heating by the first heating means 44 and the second heating means 45, and drives the finishing rinsing pump 50.

The suction port 48 of the finishing rinse tank 40 is provided at a position substantially the same as the temperature sensor 47. Therefore, the finishing rinsing pump 50 is driven to suck fresh water around the temperature sensor 47 that detects the temperature as a reference for operating and stopping the first heating means 44 and the second heating means 45 from the suction port 48. The temperature of the fresh water sprayed into the washing chamber 30 can be set to a temperature closer to a predetermined temperature.

Further, since the second heating means 45 is attached so as to be located below the first heating means 44, among the fresh water stored in the finishing rinsing tank 40, the fresh water having a low temperature collected below is the second. It can be heated by the heating means 45. This makes it possible to promote uniform heating of the entire fresh water stored in the finishing rinse tank 40 to a predetermined temperature.

The heating means provided in the finishing rinsing tank 40 is not limited to two, and if the fresh water stored in the finishing rinsing tank 40 can be efficiently heated, one or three or more are provided. May be.

The finishing rinsing pump 50 is driven to suck and discharge the fresh water stored in the finishing rinsing tank 40 through the first finishing rinsing pipe 51a, and from the second finishing rinsing pipe 51b and the third finishing rinsing pipe 51c at the fitting portion. Through a connection portion 52a and a rotary shaft portion 52b, fresh water having a predetermined temperature is sprayed from the finishing rinse upper nozzle 53 and the finishing rinse lower nozzle 54 for a predetermined time, for example, 5 seconds.

Then, after the fresh water having a predetermined temperature is dropped and flowed into the circulating rinsing tank 80, the finishing rinsing pump 50 is stopped. As a result, for example, a total of about 3 liters of fresh water having a predetermined temperature is dropped and flowed into the circulating rinse tank 80 in 5 seconds, and the members in the washing chamber 30 and the cleaning chamber 30 are dropped by the flowing and flowing fresh water having a predetermined temperature. , The temperature can be raised.

At this time, the folded portion 125 of the switching plate 124 suppresses the flow of fresh water to the main washing tank 60, and the fresh water having a predetermined temperature of the finishing rinse tank 40 is more reliably dropped and flowed into the circulating rinse tank 80. A predetermined amount of wash water can be stored in the circulating rinse tank 80 in a shorter time.

After stopping the finishing rinsing pump 50, the on-off valve 42 of the water supply unit 41 is opened by the signal sent from the control panel 18 to supply fresh water to the finishing rinsing tank 40, and the full water sensor 46 stores the fresh water in the finishing rinsing tank 40. After detecting that the water is full, the fresh water is heated to a predetermined temperature by the first heating means 44 and the second heating means 45.

After the fresh water stored in the finishing rinse tank 40 reaches a predetermined temperature, the finishing rinsing pump 50 is driven as described above to inject fresh water having a predetermined temperature from the finishing rinsing upper nozzle 53 and the finishing rinsing lower nozzle 54. .. Then, fresh water having a predetermined temperature is dropped and flowed into the circulating rinse tank 80, and the temperature of the members in the washing chamber 30 and the members in the washing chamber 30 is raised by the flow dropping of the washing water having a predetermined temperature.

This is repeated a predetermined number of times, for example, 6 times until the washing water stored in the circulating rinse tank 80 is full.

When the washing water stored in the circulating rinsing tank 80 becomes full, the full water sensor 82 of the circulating rinsing tank 80 detects and sends a signal to the control panel 18. Upon receiving the signal, the control panel 18 operates the fourth heating means 81 of the circulating rinse tank 80 to heat and keep the washing water stored in the circulating rinse tank 80 to a predetermined temperature.

After the washing water stored in the circulating rinsing tank 80 is full, the on-off valve 42 of the water supply unit 41 is opened by the signal sent from the control panel 18 to supply fresh water to the finishing rinsing tank 40 again, and the first heating means 44 And it is heated to a predetermined temperature by the second heating means 45. At the same time, the driving means 122 is driven to tilt the switching plate 124 of the switching unit 120 toward the main cleaning tank 60.

If the washing water stored in the circulating rinse tank 80 becomes full while the injection of fresh water stored in the finishing rinsing tank 40 is less than a predetermined time, the fresh water injection by the finishing rinsing pump 50 is continued. The switching plate 124 may be tilted toward the main cleaning tank 60. By doing so, the time required for the operation preparation step can be shortened.

Then, as shown in FIG. 15, the finishing rinsing pump 50 is driven for a predetermined time, for example, 5 seconds, and fresh water having a predetermined temperature is injected from the finishing rinsing nozzle 53 and the finishing rinsing nozzle 54. Then, after the fresh water having a predetermined temperature is dropped and flowed into the main washing tank 60, the finishing rinsing pump 50 is stopped. As a result, for example, about 3 liters of fresh water having a predetermined temperature is dropped and flowed into the main washing tank 60, and the temperature of the members in the washing chamber 30 and the cleaning chamber 30 is raised by the flowing and flowing fresh water having a predetermined temperature. be able to.

At this time, the folding portion 125 of the switching plate 124 suppresses the flow of fresh water to the circulating rinsing tank 80, and the fresh water having a predetermined temperature of the finishing rinsing tank 40 is more reliably dropped and flowed into the main washing tank 60. A predetermined amount of washing water can be stored in the main washing tank 60 in a shorter time.

After stopping the finishing rinsing pump 50, the on-off valve 42 of the water supply unit 41 is opened by the signal sent from the control panel 18 to supply fresh water to the finishing rinsing tank 40, and the first heating means 44 and the second heating means 45 are supplied. Heats the fresh water to a predetermined temperature.

After the fresh water stored in the finishing rinse tank 40 is full, the finishing rinsing pump 50 is driven as described above to inject fresh water having a predetermined temperature from the finishing rinsing nozzle 53 and the finishing rinsing nozzle 54. While raising the temperature of the members in the washing chamber 30 and the cleaning chamber 30, fresh water having a predetermined temperature is dropped and flowed into the main washing tank 60. This is repeated a predetermined number of times, for example, 9 times until the washing water stored in the main washing tank 60 is full.

Further, by supplying a predetermined amount of detergent to the main washing tank 60 by a detergent supply device (not shown) until the washing water is full, a predetermined amount of the washing water stored in the main washing tank 60 is supplied. Mix the detergent. A sensor for detecting the detergent concentration is provided in the main washing tank 60 to detect the concentration of the detergent contained in the washing water stored in the main washing tank 60, and the concentration is fed back to the detergent supply device to feed the detergent supply device. You may control the amount of detergent supplied by.

When the washing water stored in the main washing tank 60 becomes full, the full water sensor 63 of the main washing tank 60 detects and sends a signal to the control panel 18. Upon receiving the signal, the control panel 18 operates the third heating means 62 of the main washing tank 60 to heat and keep the washing water stored in the main washing tank 60 at a predetermined temperature.

After the washing water stored in the main washing tank 60 is full, the on-off valve 42 of the water supply unit 41 is opened by the signal sent from the control panel 18 to supply fresh water to the finishing rinse tank 40 again, and the first heating means 44 And it is heated to a predetermined temperature by the second heating means 45.

Then, after the fresh water stored in the finishing rinse tank 40 reaches a predetermined temperature, the display unit of the control panel 18 indicates that the preparation is complete, and the door unit 11 is opened upward in the vertical direction with a warning sound. With the door portion 11 open, when the operator accommodates the rack R containing the tableware in the cleaning chamber 30 and presses the cleaning start button on the control panel 18, the process proceeds to the next step, the main cleaning step. do.

As described above, in the operation preparation step, while raising the temperature of the members in the cleaning chamber 30 and the cleaning chamber 30, fresh water is dropped and flowed into the main cleaning tank 60 and the circulating rinsing tank 80, and the water is stored until it is full. As a result, it is possible to prevent the cleaning water and fresh water sprayed in the next main cleaning step and the subsequent circulation rinsing step and finishing rinsing step from coming into contact with the members in the cleaning chamber 30 and lowering the temperature. Then, it is possible to maintain a predetermined temperature of the washing water and the fresh water and improve the washing property of the tableware.

In the operation preparation step in the present embodiment, the fresh water stored in the finishing rinsing tank 40 is dropped and flowed into the circulating rinsing tank 80 before the main washing tank 60, and the water is stored until the water is full. By doing so, the washing water stored in the circulating rinse tank 80 can be reliably heated to a higher temperature within the predetermined temperature and kept warm until the next main washing step is started. It is possible to improve the washing property of the tableware in the circulation rinsing step performed after the washing step.

Depending on the type of stains on the dishes, the washing water to be stored in the main washing tank 60 may be stored until it is full before the circulating rinse tank 80 in the operation preparation step.

(Main cleaning step)
Next, the main cleaning step will be specifically described with reference to FIG.

When the cleaning start button on the control panel 18 is pressed, the control panel 18 sends a signal to close the door portion 11 by the door portion opening / closing means, and then drives the main cleaning pump 70. At this time, the switching plate 124 is tilted toward the main cleaning tank 60.

The main cleaning pump 70 sucks the cleaning water stored in the main cleaning tank 60 from the suction port 66 through the first main cleaning pipe 71a and discharges it to the second main cleaning pipe 71b. Further, the washing water passes through the third main washing pipe 71c and the fourth main washing pipe 71d, and the washing water having a predetermined temperature is sprayed from the main cleaning nozzle 72 toward the tableware for a predetermined time, for example, about 40 seconds. Will be done.

Further, the washing water at a predetermined temperature is directed toward the tableware for a predetermined time, for example, about 40 seconds from the main cleaning lower nozzle 73 through the fifth main cleaning pipe 71e that is horizontally branched from the third main cleaning pipe 71c. Is sprayed. By injecting the washing water from the main washing upper nozzle 72 and the main washing lower nozzle 73, for example, a total of about 200 liters of washing water having a predetermined temperature is sprayed onto the tableware in about 40 seconds to remove stains and oils adhering to the tableware. Perform a main wash to wash away leftover dishes.

The main wash upper nozzle 72 and the main wash lower nozzle 73 for injecting wash water fix the finish rinse upper nozzle 53 and the finish rinse lower nozzle 54 in a state having predetermined angles θ1 and θ3, and the main wash upper nozzle 72 and the main wash lower nozzle 73. The plurality of nozzle openings 75 opened in the nozzle 73 under the main cleaning have predetermined angles θ2 and θ4 having similar angles and are uniformly opened.

Therefore, the cleaning water sprayed from the main cleaning upper nozzle 72 and the main cleaning lower nozzle 73 is fixed above the main cleaning upper nozzle 72 and the final cleaning lower nozzle 73. It is possible to wash the dishes by effectively spraying the washing water on the dishes stored in the rack R while avoiding contact with the 54.

Further, the plurality of nozzle openings 75, which are slit-shaped holes of the main cleaning upper nozzle 72 and the main cleaning lower nozzle 73, have predetermined angles θ2 and θ4 from the longitudinal direction of the main cleaning upper nozzle 72 and the main cleaning lower nozzle 73. It is evenly opened. That is, the plurality of nozzle openings 75 are configured to be parallel to each of the main cleaning upper nozzle 72 and the main cleaning lower nozzle 73.

The sprayed washing water spreads in a fan shape from the nozzle openings 75 in a side view, but since the plurality of nozzle openings 75 are configured to be parallel to each other, it is possible to prevent the washing water spreading in a fan shape from interfering with each other. ..

Then, the washing water sprayed so as to spread in a fan shape from the nozzle port 75 in a side view is sprayed while spraying the washing water on more dishes in the main washing step performed only for a predetermined time. The water pressure can be maintained as much as possible to effectively wash away dirt, oil, leftovers, etc. attached to the tableware.

After washing the dishes, the washing water sprayed onto the dishes at a predetermined temperature drops and flows into the main washing tank 60 via the water collecting section 110 and the switching section 120. The washing water that has fallen and flowed into the main washing tank 60 is sucked and discharged by the main washing pump 70, and is used again for washing dishes. In this way, in the main washing step, the washing water is circulated to perform the main washing of the dishes.

At this time, the washing water that falls and flows into the main washing tank 60 is suppressed from flowing to the circulating rinse tank 80 by the folded-back portion 125 of the switching plate 124, and the washing water of the main washing tank 60 is more reliably used. It can be dropped and flowed into the main cleaning tank 60. As a result, the cleanliness of the washing water stored in the circulating rinsing tank 80 can be maintained, and the circulating rinsing of the tableware in the next circulating rinsing step can be made more effective.

Further, the folded portion 125 of the switching plate 124 suppresses the flow to the circulating rinsing tank 80, and the washing water is surely dropped and flowed to the main washing tank 60, and the amount of washing water stored in the main washing tank 60. The water level can be set so that air does not see when the main cleaning pump 70 sucks in and discharges from the main cleaning tank 60 by suppressing the gradual decrease of the water level, thereby ensuring the cleaning water from the main cleaning tank 60. It can be made possible to send water to.

Further, the washing water that is sprayed from the main washing nozzles 72 and 73 to wash the dishes and falls and flows into the main washing tank 60 has a rectangular notch in the side view provided on the upper part of the strainer 65 of the main washing tank 60. It falls and flows from the end of the switching plate 124 that has entered the inside, and is stored in the main cleaning tank 60.

Of the dirt and leftovers adhering to the dishes contained in the washing water that has fallen and flowed into the main washing tank 60, those larger than the eyes of the punching plate constituting the strainer 65 are collected inside the strainer 65. Ru. Then, the washing water is stored both inside and outside the strainer 65 of the main washing tank 60.

Since the suction port 66 for sucking the circulating washing water is provided so as to be laterally displaced from the drain port 68a connected from the strainer 65, the washing water sucked into the suction port 66 is caught inside the strainer 65. It is possible to prevent dirt and leftovers that are larger than the eyes of the collected punching plates from being mixed. As a result, dirt, leftovers, etc. larger than the eyes of the punching plate of the strainer 65 can be separated from the washing water flowing through the main washing system and circulated in a state of higher cleanliness.

Further, by separating dirt and leftovers larger than the eyes of the punching plate of the strainer 65 from the washing water, it is possible to prevent clogging due to dirt and leftovers of the nozzle openings 75 of 72 and 73 of the main washing nozzle. Can be done. In addition, the main cleaning pump 70 connected from the suction port 66 through the first main cleaning pipe 71a is prevented from sucking something that damages the main cleaning pump 70 (for example, chopsticks used for eating). The life of the main cleaning pump 70 can be extended.

After the washing water having a predetermined temperature is sprayed onto the tableware from the main washing upper nozzle 72 and the main washing lower nozzle 73 for a predetermined time, the main washing pump 70 is stopped to proceed to the next step, the drainage step. Transition.

Since the washing water stored in the main washing tank 60 performs the initial washing of the dirty tableware after eating, more dirt, oil, leftovers and the like adhering to the tableware are likely to be mixed. Therefore, of the three tanks of the finishing rinse tank 40, the circulating rinse tank 80, and the main cleaning tank 60, the cleaning water having the lowest cleanliness is stored in the main cleaning tank 60.

Further, the third main cleaning pipe 71c, the fourth main cleaning pipe 71d, and the fifth main cleaning pipe 71e for flowing the cleaning water have a rectangular cross section in the direction orthogonal to the pipe length direction. Further, the space for arranging the pipes provided on the back side of the cleaning device 1 is formed in a rectangular shape when viewed from above.

(Drainage step)
Next, the drainage step will be specifically described with reference to FIG.

As shown in FIG. 17, after performing the main cleaning step, the control panel 18 sends a signal to the drain valve 68b of the main cleaning tank 60, and opens the drain valve 68b for a predetermined time, for example, about 0.5 to 1 second. .. As a result, about 0.5 liter of the washing water stored in the main washing tank 60 is drained in, for example, 0.5 to 1 second.

At this time, by draining the washing water stored in the main washing tank 60, dirt, leftovers, etc. adhering to the dishes stored inside the main washing tank 60, particularly the strainer 65, are mainly washed in the main washing step. Drain from the tank 60 together with the washing water. Since the drain port 68a is connected from the lower end of the strainer 65, dirt, leftovers, and the like adhering to the tableware collected in the strainer 65 can be effectively drained together with the washing water.

As a result, the amount of dirt and leftovers can be reduced, the chance of contact with the washing water stored in the main washing tank 60 can be reduced, and the deterioration of the cleanliness of the washing water stored in the main washing tank 60 can be suppressed. can do.

In addition, by discharging the leftover dishes and the like accumulated inside the strainer 65, clogging of the strainer 65 is prevented, the cleaning water stored in the main cleaning tank 60 is maintained in a good circulation state, and the main cleaning is performed from the next time onward. Washing dishes in steps can be more effective.

The drained washing water passes through the drain pipe 68c together with dirt and oil adhering to the dishes stored in the main washing tank 60 in the main washing step, and leftovers collected inside the strainer 65, and remains. It is sent to the vegetable receiving section 130.

In the leftovers receiving portion 130, the punching plate of the leftovers cage 132 is used for washing water containing stains and leftovers larger than the eyes of the punching plate and oil and stains smaller than the eyes of the punching plate and leftovers. Be separated.

The separated wash water is temporarily stored in the drainage receiver 133 and then drained from the drainage port 134 of the drainage receiver 133 to the drainage ditch on the equipment side. Further, dirt and leftovers larger than the eyes of the punching plate are collected on the punching plate of the leftover basket 132.

After a predetermined time for opening the drain valve 68b of the main cleaning tank 60 has elapsed, the drain valve 68b is closed by a signal from the control panel 18. Then, the process proceeds to the next step, the circular rinsing step.

The drain valve 68b of the main cleaning tank 60 is an electric valve whose opening and closing is controlled by the control panel 18, but it may be a manual on-off valve. The drainage step may be started before the main cleaning step is completed.

(Circulating rinse step)
Next, the circulation rinsing step will be specifically described with reference to FIGS. 18 and 19.

After performing the drainage step, the control panel 18 drives the circulating rinsing pump 90, as shown in FIG. At this time, the switching plate 124 remains tilted toward the main cleaning tank 60.

The circulation rinsing pump 90 sucks the washing water stored in the circulation rinsing tank 80 from the suction port 85 through the first circulation rinsing pipe 91a and discharges it to the second circulation rinsing pipe 91b.

Further, the washing water passes through the third circulating rinse pipe 91c and the fourth circulating rinse pipe 91d, and flows upward from the fourth circulating rinse pipe 91d to the fifth circulating rinse pipe 91e. The washing water having a predetermined temperature flowing from the fifth circulating rinse pipe 91e to the two circulating rinse nozzles 93 is sprayed from the two circulating rinse nozzles 93 toward the tableware for a predetermined time, for example, about 5 seconds. To.

Further, the washing water at a predetermined temperature passes from the third circulating rinse pipe 91c through the sixth circulating rinse pipe 91f branched in the horizontal direction from the circulating rinse lower nozzle 94 to the tableware for a predetermined time, for example, about 5 seconds. It is jetted toward. By spraying the washing water from the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle 94, for example, a total of about 25 liters of washing water having a predetermined temperature is sprayed toward the dishes in about 5 seconds, and the dishes are sprayed in the main washing step. Perform a circulation rinse to wash away the adhering washing water, dirt, oil, and leftovers adhering to the dishes.

The circulation rinse upper nozzle 93 and the circulation rinse lower nozzle 94 for spraying the washing water are fixed to the left and right sides of the upper part of the washing chamber 30 and to the lower part of the washing chamber 30. As a result, in the main washing step, the washing water is sprayed from a direction different from the direction in which the washing water sprayed from the main cleaning upper nozzle 72 and the main cleaning lower nozzle 73 is sprayed, and the dishes stored in the rack R are washed almost evenly. be able to.

That is, the main cleaning upper nozzle 72 and the main cleaning lower nozzle 73 for injecting the cleaning water in the main cleaning step are rotating, and the injected cleaning water spreads concentrically, but the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle Since the 94 is fixed, the washing water can be sprayed to a preset place where the washing water is hard to reach in the main washing step, and the washing property of the tableware can be improved.

Since the washing water stored in the main washing tank 60 is discharged in a predetermined amount in the draining step, the water level of the washing water stored in the main washing tank 60 is lower than the full water level. Since the switching plate 124 is tilted toward the main cleaning tank 60 for a predetermined time, which is the first few seconds, the cleaning water sprayed from the circulation rinse upper nozzle 93 and the circulation rinse lower nozzle 94 drops and flows into the main cleaning tank 60. The main cleaning tank 60 can be filled with water. That is, in the circulation rinsing step, at least the same amount of washing water as the washing water stored in the main washing tank 60 drained in the draining step can be dropped and flowed into the main washing tank 60 to fill the water.

At this time, the folding portion 125 of the switching plate 124 allows the cleaning water of the circulating rinsing tank 80 to be more reliably dropped and flowed into the main cleaning tank 60.

When the main cleaning tank 60 is full, the full water sensor 63 of the main cleaning tank 60 sends a signal to the control panel 18, and the control panel 18 receives the signal to drive the driving means 122 of the switching unit 120 to drive the switching plate 124. Tilt to the circulation rinse tank 80 side. The circulation rinsing pump 90 is driven while the driving means 122 is driven and the switching plate 124 is tilted, and the washing water is sprayed from the circulation rinsing upper nozzle 93 and the circulation rinsing lower nozzle 94 toward the tableware. There is.

Further, the cleaning water sprayed from the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle 94 during a predetermined time, which is the first few seconds of the circulating rinse step, causes stains and residues remaining in the cleaning chamber 30 in the main cleaning step. The vegetables and the like are flowed into the main washing tank 60.

As a result, dirt, leftovers, etc. remaining in the washing chamber 30 in the main washing step are suppressed from flowing into the washing water stored in the circulating rinsing tank 80 having a higher cleanliness than the main washing tank 60. It is possible to prevent the cleanliness of the washing water stored in the circulating rinse tank 80 from deteriorating.

As shown in FIG. 19, after tilting the switching plate 124 toward the circulation rinse tank 80, the washing water sprayed from the circulation rinse upper nozzle 93 and the circulation rinse lower nozzle 94 is circulated via the switching plate 124 in the circulation rinse tank 80. Fall and flow. The washing water that falls and flows into the circulating rinsing tank 80 can be more reliably dropped and flowed into the circulating rinsing tank 80 by suppressing the flow to the main washing tank 60 by the folded-back portion 125 of the switching plate 124.

The washing water that has fallen and flowed into the circulating rinsing tank 80 is sucked in and discharged again by the circulating rinsing pump 90, and the washing water adhering to the dishes and dirt, oil, and leftovers adhering to the dishes are washed away in the main washing step. In this way, in the circulation rinsing step, the washing water is circulated to circulate the dishes.

At this time, the washing water that is sprayed from the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle 94 to wash the dishes and falls and flows into the circulating rinse tank 80 is seen from the side of the upper part of the strainer 84 of the circulating rinse tank 80. It falls and flows from the end of the switching plate 124 that has entered the inside of the rectangular notch, and is stored in the circulating rinse tank 80. Among the stains and leftovers adhering to the tableware contained in the washing water that has fallen and flowed into the circulating rinse tank 80, those larger than the eyes of the punching plate constituting the strainer 84 are collected by the strainer 84.

Then, the washing water from which dirt, leftovers and the like larger than the eyes of the punching plate of the strainer 84 are separated is sucked into the suction port 85, circulated and sprayed onto the tableware in the washing chamber 30. As a result, dirt, leftovers, etc. larger than the eyes of the punching plate of the strainer 84 can be separated from the washing water flowing through the circulating rinsing system and circulated in a state of higher cleanliness.

Further, by separating dirt and leftovers larger than the eyes of the punching plate of the strainer 84 from the washing water, dirt and leftovers on the nozzle tip 96 and the nozzle opening 95 of the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle 94 are further separated. It is possible to prevent clogging due to such factors.

In addition, the circulation rinsing pump 90 connected from the suction port 85 through the first circulation rinsing pipe 91a is prevented from sucking something that damages the circulation rinsing pump 90 (for example, chopsticks used for eating). The life of the circulating rinsing pump 90 can be extended.

Further, the washing water that falls and flows into the circulating rinsing tank 80 suppresses the flow of the washing water to the main washing tank 60 by the folded-back portion 125 of the switching plate 124, so that the washing water of the circulating rinsing tank 80 can be more reliably used. It can be dropped and flowed into the circulating rinse tank 80.

Further, the folded-back portion 125 of the switching plate 124 ensures that the washing water is dropped and flowed into the circulating rinsing tank 80, thereby suppressing the gradual decrease in the amount of washing water stored in the circulating rinsing tank 80. The water level can be set so that air does not see when the circulating rinsing pump 90 sucks in and discharges from the circulating rinsing tank 80, and it is possible to surely send the washing water from the circulating rinsing tank 80.

After the washing water having a predetermined temperature is sprayed onto the tableware from the circulating rinse upper nozzle 93 and the circulating rinse lower nozzle 94 for a predetermined time, the circulating rinse pump 90 is stopped to proceed to the next step, the finishing rinse step. And migrate.

The washing water stored in the circulating rinse tank 80 in the present embodiment is less likely to be mixed with stains, oils, leftovers and the like adhering to the tableware as compared with the washing water stored in the main washing tank 60. That is, the washing water having a higher degree of cleanliness than the washing water stored in the main washing tank 60 is stored. Further, the circulating rinsing pipe is configured by a pipe system different from that of the main washing pipe in which the washing water having low cleanliness flows.

As a result, in the main cleaning step, the cleaning water stored in the circulating rinsing tank 80 is maintained in a clean state without passing through the pipe to which dirt is attached due to the flow of the cleaning water having low cleanliness. Washing water can be sprayed onto the tableware for circulating rinsing, and the washability of the tableware can be improved.

Further, the washing water stored in the main washing tank 60 is drained by a predetermined amount by the draining step. Then, the washing water stored in the main washing tank 60 is flowed and dropped into the main washing tank 60 which has been drained by a predetermined amount by the circulation rinsing step. It is possible to improve the cleanliness of the washing water stored in the main washing tank 60 by mixing the washing water having a higher degree of cleanliness.

The circulation rinsing step may be started at the same time as the drainage step or during the drainage step. By doing so, the time required for washing the dishes can be shortened.

(Finishing rinse step)
Next, the finishing rinsing step will be specifically described with reference to FIG.

After performing the circulating rinsing step, the control panel 18 drives the finishing rinsing pump 50, as shown in FIG. At this time, the switching plate 124 remains tilted toward the circulation rinsing tank 80.

The finishing rinsing pump 50 sucks fresh water from the suction port 48 of the finishing rinsing tank 40 through the first finishing rinsing pipe 51a, and is a connection portion which is a fitting portion from the second finishing rinsing pipe 51b and the third finishing rinsing pipe 51c. Through the 52a and the rotary shaft portion 52b, fresh water having a predetermined temperature is sprayed from the finishing rinse nozzle 53 for a predetermined time, for example, 4 seconds.

Further, the washing water having a predetermined temperature is directed to the tableware from the finishing rinse lower nozzle 54 for a predetermined time, for example, about 4 seconds, through the fourth finishing rinse pipe 51d branched in the horizontal direction from the second finishing rinse pipe 51b. And spray. By spraying the washing water from the finishing rinsing upper nozzle 53 and the finishing rinsing lower nozzle 54, for example, about 1 liter of fresh water having a predetermined temperature in total is sprayed onto the tableware in about 4 seconds, and the tableware is made into the tableware in the main washing step and the circulating rinsing step. Rinse off the adhering wash water. The amount of fresh water sprayed in the finishing rinsing step is the same as or larger than the same amount of the washing water drained from the main washing tank 60 in the draining step. That is, at least the same amount of fresh water is used.

The finish rinse upper nozzle 53 and the finish rinse lower nozzle 54, which inject fresh water in the finish rinse, are fixed to the main wash upper nozzle 72 and the main wash lower nozzle 73 in a state where they have predetermined angles θ1 and θ3, and the finish rinse is performed. Fresh water is sprayed from the upper nozzle 53 and the lower nozzle 54 and rotated to finish the tableware stored in the rack R.

At this time, the washing water stored in the circulating rinsing tank 80 is moved to the main washing tank 60 by a predetermined amount by the circulating rinsing step, and the water level is lower than the full water level. Then, by the finishing rinsing step, at least the same amount of fresh water as the washing water is dropped and flowed into the circulating rinsing tank 80, which is a water level lower than the full water level by a predetermined amount, to the circulating rinsing tank 80. It is possible to improve the cleanliness of the wash water stored in the circulating rinse tank 80 by mixing fresh water having a higher cleanliness than the stored wash water.

The water level of the circulating rinsing tank 80 exceeds the water level of the full water as the fresh water further falls and flows into the filled circulating rinsing tank 80. Then, the water level of the washing water stored in the circulating rinsing tank 80 becomes a predetermined water level at which the washing water stored in the circulating rinsing tank 80 flows from the outflow opening 87 to the inflow opening 69 of the main washing tank 60 through the flow pipe 25. The washing water stored in the circulating rinse tank 80 flows into the main washing tank 60.

At this time, since the washing water stored in the main washing tank 60 is already full in the circulation rinsing step, the washing water flowing to the main washing tank 60 through the flow pipe 25 becomes the washing water stored in the main washing tank 60. It mixes and overflows from the opening (unsigned) of the main cleaning tank 60 through the overflow pipe 61.

The cleaning water that overflows from the opening of the cleaning tank 60 through the overflow pipe 61 is drained together with oil and leftovers floating near the surface of the cleaning water, so that the cleanliness of the cleaning tank 60 can be improved. ..

Further, since the washing water flowing from the circulating rinse tank 80 to the main washing tank 60 has a higher cleanliness than the washing water stored in the main washing tank 60, the washing water stored in the main washing tank 60 by mixing is obtained. The cleanliness of the water can be further improved.

After spraying fresh water of a predetermined temperature toward the tableware from the finishing rinse upper nozzle 53 and the finishing rinsing lower nozzle 54 for a predetermined time, the finishing rinsing pump 50 is stopped and the next step, the re-cleaning preparation step, is performed. And migrate.

In this way, in the finishing rinsing step, fresh water that is not mixed with dirt, oil, leftovers, etc. adhering to the tableware is sprayed from the finishing rinsing upper nozzle 53 and the finishing rinsing lower nozzle 54 to wash the tableware. That is, the washing water adhering to the dishes in the main washing step and the circulating rinsing step can be washed away by the fresh water having a higher cleanliness than the washing water stored in the main washing tank 60 and the circulating rinsing tank 80, and the washing property of the dishes can be improved. Can be improved.

In the finishing rinsing step of the present embodiment, the full water sensor 46 of the finishing rinsing tank 40 sends a signal to the control unit 18 when it detects a decrease in the amount of fresh water stored in the finishing rinsing tank 40, and a signal from the control unit 18. The on-off valve 42 of the water supply unit 41 is opened to supply fresh water to the finishing rinse tank 40. As a result, the time of the re-cleaning preparation step to be performed after the finishing rinse step can be shortened. The re-cleaning preparation step will be described later.

Further, the finishing rinse system (finishing rinsing pipes 51a, 51b, 51c, 51d, finishing rinsing pump 50, finishing rinsing upper nozzle 53 and finishing rinsing lower nozzle 54) and the main cleaning system (main cleaning pipes 71a, 71b, 71c, 71d). , 71e, main cleaning pump 70, main cleaning upper nozzle 72 and main cleaning lower nozzle 73) and circulation rinsing system (circulation rinsing pipes 91a, 91b, 91c, 91d, 91e, 91f, 91g, circulation rinsing pump 90, circulation rinsing. The upper nozzle 93 and the circulating rinse lower nozzle 94) are configured by different piping systems.

As a result, the fresh water can be sprayed onto the tableware to finish the tableware while maintaining the cleanliness of the fresh water stored in the finishing rinse tank 40 without coming into contact with the washing water having a low cleanliness. Detergency can be improved. In addition, it does not reduce the concentration of detergent in the wash water flowing through the main wash system.

Then, after the finishing rinsing pump 50 is stopped and the injection of the washing water from the finishing rinsing nozzle 53 and the finishing rinsing nozzle 54 is stopped, a warning sound is sounded from the control panel 18 and a signal sent from the control panel 18 is used to stop the door portion. 11 is opened, and the operator takes out the rack R housed in the cleaning chamber 30.

If the stains on the tableware are light in the main washing step, the time for spraying fresh water in the finishing rinse step may be shorter than the time exemplified in the present embodiment. That is, when the amount of drainage of the wash water stored in the main wash tank 60 in the drain step is small, the finish rinse step is performed only for the time when the wash water stored in the main wash tank 60 and the circulation rinse tank 80 is full. Is preferable. As a result, the washing time can be shortened while reducing the amount of water used for washing the dishes.

When the fresh water is sprayed from the nozzle tip 56 of the finishing rinse nozzle 53, the fresh water is sprayed toward the lower surface of the upper surface plate portion 13 which is the ceiling of the cleaning chamber 30. As a result, the washing water or the like adhering to the lower surface of the upper surface plate portion 13 can be washed away, but the lower surface of the upper surface plate portion 13 may be inclined downward from the front side to the back side of the cleaning device 1.

In that case, by inclining downward from the front side to the back side, fresh water or the like adhering to the lower surface of the upper surface plate portion 13 can be dropped and flowed to the water collecting portion 110. As a result, it is possible to prevent the washing water and the like and the fresh water adhering to the lower surface of the upper surface plate portion 13 from dripping onto the plurality of tableware stored in the rack R.

(Re-cleaning preparation step)
Next, the re-cleaning preparation step will be specifically described with reference to FIG.

As described above, when it is detected by the full water sensor 46 that the amount of fresh water stored in the finishing rinse tank 40 has decreased during the finishing rinse step, the supply of fresh water to the finishing rinse tank 40 is started. Then, fresh water is supplied until the finishing rinse tank 40 is full, and after the filling is full, the fresh water is heated to a predetermined temperature by the first heating means 44 and the second heating means 45 provided in the finishing rinse tank 40. ..

At this time, since the water supply unit 41 that supplies fresh water to the finishing rinse tank 40 supplies fresh water from the upper part of the finishing rinse tank 40 (see FIG. 7A), the fresh water falls and flows into the finishing rinse tank 40. Then, the fresh water stored in the finishing rinse tank 40 is stirred. By stirring the fresh water stored in the finishing rinsing tank 40, it is possible to promote that the temperature of the fresh water stored in the finishing rinsing tank 40 becomes substantially uniform and a predetermined temperature.

At the same time, the temperature sensor 63 of the main washing tank 60 measures the temperature of the washing water stored in the main washing tank 60, and when the temperature of the washing water is less than a predetermined temperature, for example, 55 to 70 degrees C, the first The washing water stored in the main washing tank 60 is heated to a predetermined temperature by the heating means 62 of 3.

Further, the temperature of the washing water stored in the circulating rinsing tank 80 is measured by the temperature sensor 83 of the circulating rinsing tank 80, and when the temperature of the washing water is less than a predetermined temperature, for example, 60 to 85 degrees C, a fourth. The washing water stored in the circulating rinse tank 80 is heated to a predetermined temperature by the heating means 81 of the above.

At this time, when the fresh water stored in the finishing rinsing tank 40 and the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 are full and have a predetermined temperature, the water is stored in the finishing rinsing tank 40. The fresh water is kept at a predetermined temperature by the first heating means 44 and the second heating means 45. Further, the washing water stored in the main washing tank 60 is kept at a predetermined temperature by the third heating means 62, and the washing water stored in the circulating rinse tank 80 is kept at a predetermined temperature by the fourth heating means 81.

When the operator accommodates the rack R containing the dishes to be washed next in the washing chamber 30 and presses the washing start button, the door portion 11 is lowered in the vertical direction by a signal from the control unit 18, and the door portion 11 is used. Is closed. Then, when the fresh water stored in the finishing rinsing tank 40 and the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 are full and reach a predetermined temperature, the control panel 18 performs the next step, the main washing step. Start.

When it is unclear whether or not to perform the next main cleaning step, by inputting a predetermined time to the control panel 18, the first heating means 44, the second heating means 45, and the third heating are performed. The means 62 and the fourth heating means 81 can be controlled to stop after a predetermined time has elapsed.

Further, when the heat is kept for a predetermined time without inputting a predetermined time to the control panel 18, the first heating means 44, the second heating means 45, the third heating means 62, and the fourth heating are performed. The means 81 can be set to stop, and the amount of electric power used can be reduced.

(Cleaning step)
Next, the cleaning step will be specifically described.

If there is no plan to wash the dishes for a long time, after taking out the rack R containing the dishes in the finishing rinse step, operate the control panel 18 with the door portion 11 open, and use the signal sent from the control panel 18. The drain valve 68b of the main washing tank 60 and the drain valve 86b of the circulation rinsing tank 80 were opened, and the washing water stored in the main washing tank 60, the washing water stored in the circulation rinsing tank 80, and the washing water stored in the washing water were stored. Dirt, oil, leftovers, etc. adhering to the tableware are drained through the drain pipes 68c and 86c.

The washing water drained from the main washing tank 60 and the circulating rinsing tank 80, and the discharged dirt, oil, leftovers, etc., are larger than the eyes of the punching plate of the leftover basket 132, and the washing water, etc. It is separated into oil, dirt smaller than the eyes of the punching plate, and leftovers.

The separated washing water, oil, dirt, leftovers, etc. are temporarily stored in the drainage receiver 133 and then drained from the drainage port 134 of the drainage receiver 133 to the drainage ditch on the equipment side. Further, dirt and leftovers larger than the eyes of the punching plate are collected on the punching plate of the leftover basket 132.

Then, removable members in the cleaning chamber 30, for example, a rack support portion 37 and a water return plate portion 100 configured to be integrated, a circulation rinse lower nozzle 94, a finish rinse upper nozzle 53, and a finish rinse lower nozzle 54. A place where the main cleaning upper nozzle 72, the main cleaning lower nozzle 73, the water collecting unit 110, the switching plate 124 can be removed, and the strainer 65 of the main cleaning tank 60 and the strainer 84 of the circulating rinsing tank 80 can be removed to clean the sink and the like. And clean each member.

Next, the drain valve 49c of the finishing rinse tank 40 is opened, and the fresh water stored in the finishing rinse tank 40 is drained.

The fresh water stored in the finishing rinse tank 40 has a high degree of cleanliness because it does not come into contact with dirt, oil, leftovers, etc. adhering to the tableware. Therefore, it may be stored in a container or the like and used for cleaning the cleaning device 1. By doing so, the amount of water used for cleaning the cleaning device 1 can be reduced.

Further, since the fresh water stored in the finishing rinse tank 40 has a high degree of cleanliness, it may not be drained and may be used for the next dishwashing.

After draining the washing water from the main washing tank 60 and the circulating rinsing tank 80, the dirt adhering to the outer surface of the washing chamber 30, the main washing tank 60, the circulating rinsing tank 80, and the washing device 1 is removed by a brush or the like and supplied from the equipment side. Rinse off the fresh water by sprinkling it with a hose or the like.

After rinsing, the leftover basket 132 is removed from the support portion 131, and the leftovers and the like collected in the leftover basket 132 are discarded. Then, the leftover basket 132 is cleaned with a sink or the like, and the drainage receiver 133 is washed away by sprinkling water with a hose or the like.

Moisture adhering to the detachable member and the leftover basket 132 is removed and attached to the cleaning device 1 again to prepare for the operation preparation step for using the cleaning device 1 next time.

In the cleaning step, when draining the fresh water stored in the finishing rinse tank 40, the drain valve 49c is manually opened. The drain valve 49c that drains water from the finishing rinse tank 40 may be a valve whose opening and closing is controlled by the control panel 18, for example, an electric valve. In that case, in the cleaning step, the fresh water stored in the finishing rinse tank 40 can be drained only by operating the control panel 18.

(Repeat of dishwashing cycle with washing device)
Next, the repetition of the tableware washing cycle by the washing device 1 will be described.

The five steps of the main washing step, the draining step, the circulating rinsing step, the finishing rinsing step, and the rewashing preparation step replace the racks R to form a washing cycle in which the dishes can be washed repeatedly. The cleaning water and fresh water used in this cleaning cycle have the cleanliness in the order of the cleaning water stored in the main cleaning tank 60, the cleaning water stored in the circulating rinse tank 80, and the fresh water stored in the finishing rinse tank 40. Is high. The repetition of the washing cycle will be described below.

By repeating the cleaning cycle for the main cleaning step, the cleanliness of the cleaning water stored in the main cleaning tank 60 decreases. Therefore, in the drainage step performed after the plurality of main cleaning steps, the time for opening the drain valve 68b may be changed to adjust the amount of drainage of the cleaning water stored in the main cleaning tank 60. For example, the predetermined time for draining the washing water from the main washing tank 60 in the draining step is, for example, 0.5 to 1 second, but it may be longer than 1 second.

However, the amount of fresh water supplied to the finishing rinse tank 40 in the finishing rinse step and the re-cleaning preparation step is at least the same as the amount of washing water drained from the main cleaning tank 60 in the draining step. Therefore, by increasing the amount of washing water drained from the main washing tank 60 in the draining step, the amount of fresh water used in one washing cycle increases.

Further, by draining a large amount of the washing water stored in the main washing tank 60 in the draining step, the amount of fresh water supplied to the finishing rinse tank 40 increases, and the increased amount of fresh water is used in the first heating means 44 and the first heating means 44. Energy for heating by the heating means 45 of 2 is required.

Therefore, it is more preferable that the amount of washing water drained from the main washing tank 60 in the draining step is as small as possible while improving the cleanliness of the washing water stored in the main washing tank 60.

When the washing cycle is repeated for the circulating rinsing step, the cleanliness of the washing water stored in the circulating rinsing tank 80 is lowered. Therefore, after performing at least one washing cycle, the drain valve 86b of the drain pipe 86c provided in the circulation rinsing tank 80 is opened by a signal from the control panel 18, and a predetermined amount of washing water stored in the circulation rinsing tank 80 is used. A circulating rinse tank drain step, which drains only, may be provided for the wash cycle.

As a result, it is possible to improve the cleanliness of the washing water stored in the circulating rinsing tank 80 whose cleanliness has been lowered by a plurality of washing cycles, and to improve the cleaning performance in the circulating rinsing step performed in the next and subsequent washing cycles. ..

Further, when the washing cycle is repeated, the concentration of the detergent contained in the washing water stored in the main washing tank 60 decreases. However, the washing water stored in the circulating rinsing tank 80 contains the detergent adhering to the dishes in the main washing step due to the repeated circulating rinsing steps.

Therefore, when the amount of washing water stored in the main washing tank 60 is filled with water, the washing water stored in the circulating rinse tank 80 is dropped and flowed into the main washing tank 60 to make fresh water containing no detergent. It is possible to suppress a decrease in the detergent concentration of the cleaning water stored in the main cleaning tank 60 as compared with the case where the water is dropped and flowed into the main cleaning tank 60.

If, after performing at least one cleaning cycle, there is almost no dirt or leftovers left in the cleaning chamber 30 and the cleaning chamber 30 is not cleaned in the cleaning step, or the cleaning chamber 30 is cleaned. In the next operation preparation step, the switching plate 124 is tilted toward the main cleaning tank 60 instead of first flowing and dropping the fresh water stored in the finishing rinse tank 40 into the circulating rinse tank 80. Then, it may be dropped and flowed into the main cleaning tank 60 for a predetermined time.

Then, the fresh water stored in the finishing rinsing tank 40 is sucked and discharged by the finishing rinsing pump 50 and sprayed in the washing chamber 30 to wash away dirt and leftovers in the washing chamber 30, and the water collecting section 110 and the switching section are used. The water is collected by the strainer 65 provided in the main cleaning tank 60 via the 120 and stored in the main cleaning tank 60. Then, after a predetermined time has elapsed, the switching plate 124 may be tilted toward the circulating rinse tank 80 and dropped into the circulating rinse tank 80 to store water.

As a result, after the dirt and leftovers remaining in the cleaning chamber 30 in the previous cleaning cycle are collected inside the strainer 65 of the main cleaning tank 60 that stores the cleaning water whose cleanliness is likely to deteriorate, the cleaning water is collected. Highly clean fresh water can be circulated and flowed into the rinsing tank 80 to store water. Then, it is possible to suppress a decrease in the cleanliness of the washing water stored in the circulating rinsing tank 80, and it is possible to improve the washing property in the washing cycle performed after the operation preparation step.

Although the object to be washed has been described as tableware in the present embodiment, the object to be washed may be cooking utensils or the like used for cooking in addition to tableware.

Although the strainer 65 is provided in the main cleaning tank 60 and the strainer 84 is provided in the circulation rinsing tank 80, one strainer may be provided in the water collecting portion 110.

In that case, the number of members constituting the cleaning device 1 can be reduced, but the main cleaning step, the circulation rinsing step, and the finishing rinsing step are carried out in a state where dirt, leftovers, etc. are accumulated in one strainer provided in the water collecting portion 110. After the washing water and fresh water come into contact with dirt, leftovers, etc. accumulated in one strainer provided in the water collecting portion 110, they fall and flow into the main washing tank 60 or the circulating rinse tank 80. Therefore, the cleanliness of the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 may be easily lowered.

Therefore, by providing the strainer 65 in the main washing tank 60 and the strainer 84 in the circulating rinsing tank 80, the cleanliness of the washing water and the fresh water that falls and flows into the main washing tank 60 or the circulating rinsing tank 80 is controlled and the cleanliness is controlled. The cleaning device 1 can be operated so as to maintain the above. Then, it is possible to suppress an unintended decrease in cleanliness due to repeated cleaning cycles.

When the finishing rinse tank 40 and the main cleaning tank 60 and / or the circulation rinse tank 80 are connected by a pipe via a water supply means, and the cleaning water is stored in the main cleaning tank 60 and / or the circulation rinse tank 80. Fresh water may be flowed directly from the finishing rinse tank 40 to the main cleaning tank 60 and / or the circulating rinse tank 80.

In that case, the finishing rinse pump 50, the main cleaning pump 70, and the circulation rinse pump 90 may be used as the water supply means, or may be provided separately. By doing so, the time required for the operation preparation step can be shortened.

The main washing tank 60 and the circulating rinsing tank 80 may be connected by a pipe via a water feeding means so that the washing water stored in each of them may flow.

If the water pressure of the washing water or fresh water sprayed from the nozzle to wash the dishes is insufficient, the water supply means may be connected in series to at least one of the main washing system, the circulating rinsing system, and the finishing rinsing system. .. If the amount of water is insufficient, the water supply means may be connected in parallel to at least one of the main washing system, the circulating rinsing system, and the finishing rinsing system.

The first heating means 44, the second heating means 45, the third heating means 62, and the fourth heating means 81 may be of an electric type or a gas type. If the cleaning device 1 is an electric type, it is provided with wiring, a heater, and the like, and if it is a gas type, it is provided with a gas supply pipe, a burner, a heat exchanger, an exhaust stack, and the like.

In the present embodiment, the perforated plates used for the strainers 65 and 84 and the leftover basket 132 are described as punching plates, but this is an example, and a finer resin filter, a metal net, or the like is used. You may. In that case, since the mesh is fine, leftovers may adhere to the resin filter, the metal net, or the like, making it difficult to clean.

The straightening vane 67 attached to the suction port 66 of the main cleaning tank 60 may be attached to the suction port 48 of the finishing rinse tank 40 or the suction port 85 of the circulation rinse tank 80.

Hot water may be supplied to the finishing rinse tank 40 from an external hot water supply facility.

When the finishing rinsing tank 40, the finishing rinsing pump 50, and the first finishing rinsing pipe 51a are not provided, and hot water having a predetermined temperature is supplied to the second finishing rinsing pipe 51b from an external hot water supply facility. Fresh water may be sprayed from the finishing rinse upper nozzle 53 and the finishing rinse lower nozzle 54 with the water pressure of. In that case, an on-off valve is provided in the middle of the second finishing rinsing pipe 51b to control the supply of hot water.

If the cleaning chamber 30, the main cleaning tank 60, and the circulating rinsing tank 80 are not very dirty in the cleaning step, only the cleaning water stored in the main cleaning tank 60 is drained, and the residual vegetable cage 132 is removed from the support portion 131. You can just remove it and clean it.

In that case, in the next operation preparation step, the fresh water stored in the finishing rinse tank 40 is heated to a predetermined temperature by a heating means, sprayed from the finishing rinse nozzle to fill the main washing tank 60 with water, and the finishing rinse tank 40 is filled with fresh water. The operation preparation step can be completed by storing water so that the water becomes full and heating it to a predetermined temperature, and heating the washing stored in the circulating rinse tank 80 to a predetermined temperature by a heating means. As a result, the time until the main cleaning is started can be shortened as compared with the operation preparation step of the present embodiment.

In the present embodiment, the dishes are washed by the main washing step, the circulation rinsing step, and the finishing rinsing step, but any of them can be used as long as the stains, oils, leftovers, etc. attached to the dishes can be washed away. You may omit the step. By doing so, the washing time of the tableware stored in the rack R can be shortened.

If the cleaning water adhering to the dishes can be washed away in the main washing step and the circulation rinsing step by injecting the fresh water in the finishing rinsing step even if the time for injecting the fresh water into the dishes is shortened in the finishing rinsing step. The predetermined time for injecting fresh water in the finishing rinse step may be shortened.

In that case, at least the amount of fresh water that fills the circulating rinse tank 80 in the finishing rinse step, that is, at least the same amount of fresh water that is drained from the main cleaning tank 60 in the drainage step, is dropped and flowed into the circulating rinse tank 80. Just need it. As a result, the amount of water used for washing the dishes can be reduced to save water, and the washing time can be shortened.

A rest time may be provided between each step. By doing so, a predetermined amount of water is dropped and flowed into the main washing tank 60 for the purpose of washing water that falls and flows in the washing chamber 30, or the circulating rinsing tank 80 for the purpose of the fresh water that falls and flows, and at each step. It is possible to prevent the sprayed washing water and fresh water from being mixed and falling into an unintended tank.

The control panel 18 may be provided with a mode for collectively setting each step. Thereby, the time of the main washing step, the drainage step, the circulating rinsing step, the finishing rinsing step, the temperature of the washing water and the fresh water, the supply amount of the detergent to be mixed with the washing water, the finishing rinsing pump 50, the main washing pump 70, and the circulating rinsing. The frequency of the pump 90 may be changed by an inverter or the like to control the rotation speed, and the discharge amount may be changed.

As a result, the settings of the cleaning device 1 can be changed collectively according to the amount and type of stains, oils, leftovers, etc. adhering to the tableware, and the tableware can be washed more according to the tableware. Can be improved.

As described above, according to the cleaning method and the cleaning apparatus according to the present embodiment, it is possible to reduce the amount of water used and suppress the deterioration of the cleaning property in the repeated cleaning cycle.

(Embodiment 2)
Next, the second embodiment of the present invention will be described.

In the second embodiment of the present invention, the fine control of the cleaning device 1 and the change of the control method described in the first embodiment will be described. The operation of the cleaning device 1 is the same as that of the first embodiment except for the portion described in the second embodiment. Further, the configuration of the cleaning device 1 is the same as that of the cleaning device 1 described in the first embodiment, and thus is omitted.

(Control method of heating means)
First, control of the first heating means 44 and the second heating means 45 of the finishing rinsing tank 40, the third heating means 62 of the main cleaning tank 60, and the fourth heating means 81 of the circulation rinsing tank 80. The method will be specifically described with reference to FIG.

The temperature sensor 47 that measures the temperature of the fresh water stored in the finishing rinse tank 40, and the first heating means 44 and the second heating means 45 that heat the fresh water are electrically connected to the control panel 18. The heating amount (operation amount) by the first heating means 44 and the second heating means 45 is the current temperature (measured value) of fresh water measured by the temperature sensor 47 and the finishing rinse input in advance to the control panel 18. PID control is performed based on a predetermined temperature (target value) of fresh water stored in the tank 40.

Further, the temperature sensor 64 for measuring the temperature of the washing water stored in the main washing tank 60 and the third heating means 62 for heating the washing water are electrically connected to the control panel 18. The heating amount (operation amount) by the third heating means 62 is the temperature (measured value) of the current washing water measured by the temperature sensor 64 and the washing stored in the main washing tank 60 previously input to the control panel 18. On / off control is performed based on a predetermined temperature (target value) of water.

Further, the temperature sensor 83 for measuring the temperature of the washing water stored in the circulating rinsing tank 80 and the fourth heating means 81 for heating the washing water are electrically connected to the control panel 18. The heating amount (operation amount) by the fourth heating means 81 is the temperature (measured value) of the current washing water measured by the temperature sensor 83 and the washing stored in the circulating rinse tank 80 previously input to the control panel 18. It is on / off controlled based on the predetermined temperature (target value) of water.

The third heating means 62 of the main cleaning tank 60 and the fourth heating means 81 of the circulating rinsing tank 80 correct the temperature offset detected by the temperature sensors 64 and 83 in the on / off control, and gain against the temperature change. It is set so that the correction of the temperature and the sensitivity setting of the temperature change to correspond to the hysteresis can be changed.

The first heating means 44 and the second heating means 45 of the finishing rinse tank 40 may be on / off controlled. However, the fresh water stored in the finishing rinsing tank 40 is easily affected by the temperature of the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 adjacent to or in contact with each other.

Controlling the heating amount of the first heating means 44 and the second heating means 45 for the vulnerable fresh water to approach or keep the predetermined temperature faster and more accurately is on / off. PID control is more suitable than control. Therefore, it is preferable that the control of the first heating means 44 and the second heating means 45 of the finishing rinse tank 40 is PID control.

The control of the third heating means 62 of the washing tank 60 and / or the fourth heating means 81 of the circulating rinsing tank 80 may be PID control. However, in the main washing step and the circulating rinsing step, the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 is likely to be mixed with leftovers and the like adhering to the washed dishes.

Even if PID control is used to control the temperature of the washing water in which the leftovers and the like are easily mixed, the main washing tank 60 is brought to a predetermined temperature previously input to the control panel 18 due to the influence of the leftovers and the like mixed in the washing water. And it becomes difficult to keep the temperature of the washing water stored in the circulating rinse tank 80. Therefore, it is preferable that the control of the third heating means 62 of the main cleaning tank 60 and the fourth heating means 81 of the circulation rinsing tank 80 is a simpler on / off control.

(Setting of pump drive time in main cleaning step, circulation rinsing step and finishing rinsing step)
Next, regarding setting the drive time of the main wash pump 70 in the main wash step, the drive time of the circulation rinse pump 90 in the circulation rinse step, and the drive time of the finish rinse pump 50 in the finish rinse step. This will be specifically described with reference to FIG.

The dishwasher described in Patent Document 1 described above discharges the washing water for washing the dishes as it is in the preliminary washing for washing away the dirt, oil, leftovers and the like adhering to the dishes. If the stains, oils, leftovers, etc. attached to the dishes are strong and difficult to wash off, it can be dealt with by lengthening the pre-washing time or increasing the flow rate of the washing water for washing the dishes in the pre-washing. In that case, there is a problem that the amount of water used for washing the dishes is increased by the amount of lengthening the pre-washing time or by increasing the flow rate of the washing water for washing the dishes by the pre-washing.

It will be described below for the purpose of providing a cleaning device and a cleaning method capable of improving the cleaning property of tableware without increasing the amount of water used.

The control panel 18 has three cleaning modes, a simple cleaning mode, a standard cleaning mode, and a strong cleaning mode. In each mode, the time for the main cleaning pump 70 to be driven in the main cleaning step and the circulation rinsing step are used. The time for driving the circulating rinsing pump 90 and the time for driving the finishing rinsing pump 50 in the finishing rinsing step can be set.

That is, the time for sucking and discharging the washing water stored in the main washing tank 60 in the main washing step and spraying it from the main washing nozzles 72 and 73 toward the tableware in the washing chamber 30, and the circulating rinsing tank 80 in the circulation rinsing step. The washing water stored in the washing room 30 is sucked in and discharged, and the time for spraying the washing water from the rinsing nozzles 93 and 94 toward the tableware in the washing room 30 and the fresh water stored in the finishing rinsing tank 40 in the finishing rinsing step are sucked in and discharged. The time for spraying from the finishing rinse nozzles 53 and 54 toward the tableware in the washing chamber 30 can be set in each mode.

For example, in the simple cleaning mode, the main cleaning pump 70 is driven for 30 seconds in the main cleaning step, the circulating rinsing pump 90 is driven for 4 seconds in the circulating rinsing step, and the finishing rinsing pump 50 is driven in the finishing rinsing step. Set the time to 4 seconds. Then, for example, in the standard cleaning mode, as illustrated in the first embodiment of the present invention, the time for driving the main cleaning pump 70 in the main cleaning step is set to 40 seconds, and the time for driving the circulating rinsing pump 90 in the circulating rinsing step is set. The time for driving the finishing rinse pump 50 in the finishing rinse step for 5 seconds is set to 4 seconds. Further, for example, in the strong cleaning mode, the main cleaning pump 70 is driven for 150 seconds in the main cleaning step, the circulating rinsing pump 90 is driven for 60 seconds in the circulating rinsing step, and the finishing rinsing pump 50 is driven in the finishing rinsing step. Set the driving time to 4 seconds.

As a result, the amount of water used in one washing cycle is proportional to the time that the finishing rinsing pump 50 is driven in the finishing rinsing step, but even if this time is not changed, it is the time that the main washing pump 70 is driven in the main washing step. By lengthening the time during which the circulation rinsing pump 90 is driven in the circulation rinsing step, the washing property of the dishes can be improved. That is, the washability of the tableware can be improved without increasing the amount of water used.

Further, when the rack R in which the tableware is stored is stored in the washing chamber 30 in the operation preparation step, the control panel 18 can be operated to select the washing mode and wash the tableware according to the degree of dirtiness of the tableware.

The time for driving the finishing rinsing pump 50 in the finishing rinsing step may be set in the simple cleaning mode, the standard cleaning mode, and the strong cleaning mode. In that case, by shortening the driving time of the finishing rinsing pump 50, the amount of washing water used in the washing cycle can be reduced. Further, when the detergent concentration of the washing water stored in the main washing tank 60 is increased, the detergent components and the like adhering to the tableware can be washed away by lengthening the driving time of the finishing rinsing pump 50 in the finishing rinsing step.

In the present embodiment, the modes included in the control panel 18 have been described in three modes of a simple cleaning mode, a standard cleaning mode, and a strong cleaning mode, but two or four or more modes may be used.

(Setting of automatic / manual switching when opening the door)
Next, the setting of automatic opening / closing of the door portion 11 of the cleaning device 1 will be specifically described with reference to FIGS. 1 and 3.

The control panel 18 selects either automatic opening / closing by the door opening / closing means 31, 32, 33, 34, 35, 36 for opening / closing the door portion 11 or manual opening / closing by the operator's manual opening / closing. Can be set.

As a result, in the unlikely event that the drive means 33 or the like does not operate due to a malfunction, the door portion 11 is stopped by the door portion opening / closing means 31, 32, 33, 34, 35, 36, and the door is manually operated by the operator. The unit 11 can be closed. Of course, when opening the door portion 11, the door portion 11 can be opened by the operator's hand.

In order to set the door portion 11 to be opened and closed manually, the door portion 11 is closed as described above so as not to be accidentally opened while fresh water or cleaning water is being sprayed in the cleaning chamber 30. It is preferable to provide a lock mechanism (not shown) for locking with.

(Setting the cleaning standby mode in the operation preparation step)
The dishwasher described in Patent Document 1 described above is washed by supplying hot water from a hot water supply source installed outside the dishwasher and spraying the supplied hot water onto the dishes. Therefore, there is a problem that the hot water source needs energy to keep the hot water at a high temperature until the hot water is heated by the hot water source and the dishwasher starts washing the dishes.

When not washing dishes, save energy for keeping the washing water used for washing dishes warm, and reduce the air conditioning load of the facility where the washing device is installed. For the purpose of providing, it will be described below.

In the operation preparation step, with the door portion 11 closed downward in the vertical direction, the fresh water stored in the finishing rinsing tank 40 shown in FIG. 5 and the washing water stored in the main washing tank 60 and the circulating rinsing tank 80, respectively. After the water level is full and the temperature reaches a predetermined temperature, the cleaning device 1 is in a state where the door portion 11 is opened upward in the vertical direction. After a predetermined time, for example, 10 minutes has elapsed in this state, the control panel 18 controls to shift to the cleaning standby mode.

In the washing standby mode, the temperatures of the fresh water stored in the finishing rinsing tank 40 and the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 are individually set by operating the control panel 18 in advance. Keep warm and wait in a state where it is allowed to drop to the minimum maintenance temperature. For example, the minimum maintenance temperature of the fresh water stored in the finishing rinse tank 40 is 30 ° C, the minimum maintenance temperature of the washing water stored in the main cleaning tank 60 is 25 ° C, and the minimum maintenance temperature of the fresh water stored in the circulating rinse tank 80 is. Set to 28 degrees C. Then, the temperature of the fresh water stored in the finishing rinsing tank 40 and the temperature of the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 are kept warm in a state allowing the temperature to drop to the respective minimum maintenance temperatures. stand by.

As a result, when it takes a long time to move to the main washing step, the fresh water stored in the finishing rinse tank 40 and the washing water stored in the main washing tank 60 and the circulating rinse tank 80 are used to wash the dishes. It is not necessary to keep the temperature at a predetermined temperature required when starting (main washing, circulating rinsing and finishing rinsing), and the heating energy for keeping the heat can be saved.

Further, the fresh water stored in the finishing rinsing tank 40 and the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 are suppressed from raising the room temperature in the facility where the washing device 1 is installed, and the air conditioning of the facility is suppressed. The load can be reduced.

When starting washing of dishes, the rack R containing the dishes is housed in the washing room 30, the washing start button is pressed, the door 11 is lowered in the vertical direction by the door 11 opening / closing means, and the door 11 is closed. It is in a state of being. The fresh water stored in the finishing rinse tank 40 is heated to a predetermined temperature by the first heating means 44 and the second heating means 45, and the washing water stored in the main washing tank 60 by the third heating means 62 is heated to a predetermined temperature. The washing water stored in the circulating rinse tank 80 is heated to a predetermined temperature by the fourth heating means 81, and the main washing step is started.

This can save energy for keeping the wash water used for washing the dishes warm when the dishes are not washed, that is, when the dishes are waiting to be washed.

Further, it may be set to shift to the washing standby mode also in the re-cleaning preparation step performed after the finishing rinsing is completed in the finishing rinsing step and the operator takes out the rack R housed in the washing chamber 30.

The predetermined time until the control panel 18 shifts to the cleaning standby mode after the door portion 11 is opened upward in the vertical direction in the operation preparation step is changed by operating the control panel 18. be able to.

Although it has been explained that the door portion 11 is in the open state until the transition to the cleaning standby mode is performed, the control panel 18 is operated so that the cleaning standby mode can be transitioned even when the door portion 11 is closed. You may. As a result, it is possible to prevent the temperature of the washing water stored in the main washing tank 60 and the circulating rinsing tank 80, which are located below the washing room 30, from dropping due to the outside air flowing in from the washing room 30 with the door portion 11 open. be able to. Then, the heating energy for keeping the fresh water stored in the finishing rinsing tank 40 and the washing water stored in the main washing tank 60 and the circulating rinsing tank 80 can be further saved.

When the cleaning standby mode is set so that the cleaning standby mode can be entered even when the door portion 11 is closed, the cleaning water stored in the main cleaning tank 60 is sucked and discharged by the main cleaning pump 70 during the cleaning standby mode, and the inside of the cleaning chamber 30 is discharged. It may be jetted from the main cleaning nozzles 72 and 73 and dropped and flowed to the main cleaning tank 60 via the water collecting unit 110 and the switching unit 120. Alternatively, the washing water stored in the circulating rinsing tank 80 during the washing standby mode is sucked and discharged by the circulating rinsing pump 90 and sprayed from the circulating rinsing nozzles 93 and 94 in the washing chamber 30, and the water collecting unit 110 and the switching unit are used. It may be dropped and flowed into the circulating rinse tank 80 via the 120.

As a result, the temperature of the members in the cleaning chamber 30 and the members in the cleaning chamber 30 can be raised by the flow drop of the cleaning water in the cleaning standby mode during the cleaning standby mode. In this way, in the main cleaning step to be started, the temperature of the tableware stored in the rack R housed in the cleaning chamber 30 is raised as soon as possible to facilitate the removal of dirt adhering to the tableware and improve the cleaning property. be able to.

Further, the washing water stored in the main washing tank 60 or the circulating rinsing tank 80 was stirred by the washing water falling and flowing into the main washing tank 60 or the circulating rinsing tank 80, and stored in the main washing tank 60 or the circulating rinsing tank 80. The temperature unevenness of the washing water can be reduced. Then, the dishes can be effectively washed by washing the dishes with the washing water having less temperature unevenness stored in the main washing tank 60 or the circulating rinsing tank 80. Further, the heating efficiency of the washing water can be improved by stirring the washing water stored in the main washing tank 60 or the circulating rinsing tank 80.

(Setting the timing to tilt the switching plate in the circulation rinse step)
Next, the change of the control method regarding the switching of the inclination of the switching plate 124 in the circulation rinsing step will be specifically described with reference to FIG.

The dishwasher described in the above-mentioned Patent Document 1 discharges the washing water for washing the dishes as it is at the time of the preliminary washing for washing away the dirt, oil, leftovers and the like adhering to the dishes. If the stains, oils, leftovers, etc. attached to the dishes are strong and difficult to wash off, it can be dealt with by lengthening the pre-washing time or increasing the flow rate of the washing water for washing the dishes in the pre-washing. In that case, there is a problem that the amount of water used for washing the dishes is increased by the amount of lengthening the pre-washing time or by increasing the flow rate of the washing water for washing the dishes by the pre-washing.

An object of the present invention will be described below for the purpose of providing a cleaning device and a cleaning method capable of improving the cleaning property of tableware without significantly increasing the amount of water used.

In the first embodiment, as shown in FIG. 18, when the circulation rinsing step is started, the switching plate 124 is kept tilted toward the main cleaning tank 60. Then, the washing water stored in the circulating rinsing tank 80 is sucked and discharged by the circulating rinsing pump 90, and the washing water is sprayed from the circulating rinsing nozzles 93 and 94 toward the tableware in the washing chamber 30 to inject the washing water into the main washing tank 60. The washing water stored in the main washing tank 60 is stored up to a full water level. When the washing water stored in the main washing tank 60 is stored to a water level that is full, the full water sensor 63 sends a signal to the control panel 18, and the control panel 18 receives the signal and drives the driving means 122 of the switching unit 120. Then, the switching plate 124 is tilted toward the circulating rinse tank 80.

In the second embodiment, in the circulation rinsing step performed after the drainage step is completed, the switching plate 124 is as shown in FIG. 19 at the timing when a predetermined time preset by the control panel 18 has elapsed from the start of driving the circulation rinsing pump 90. Is tilted from the main cleaning tank 60 side to the circulation rinse tank 80 side.

For example, in the circulation rinsing step, when the switching plate 124 is tilted from the main cleaning tank 60 side to the circulation rinsing tank 80 side at the timing of the water level lower than the water level at which the washing water stored in the main washing tank 60 is full. The circulation rinsing step is completed while the washing water stored in the washing tank 60 remains at a water level lower than the full water level.

By the finishing rinsing step performed after the circulating rinsing step, the fresh water sprayed from the finishing rinsing nozzles 53 and 54 toward the tableware is dropped and flowed into the circulating rinsing tank 80 in the washing chamber 30. The washing water flows from the full circulation rinsing tank 80 to the main washing tank 60 via the flow pipe 25.

At this time, the washing water mixed with the fresh water having a higher degree of cleanliness is mainly washed from the circulating rinsing tank 80 through the flow pipe 25 as compared with the washing water that is dropped and flowed to the main washing tank 60 in the circulation rinsing step. Flow to tank 60. As a result, the cleanliness of the washing water stored in the main washing tank 60 can be effectively improved as compared with the first embodiment.

Further, for example, after the washing water stored in the main washing tank 60 reaches a full water level, the switching plate 124 is moved to the main washing tank at the timing when a predetermined amount of washing water is dropped and flowed into the main washing tank 60. When tilted from the 60 side to the circulation rinse tank 80 side, the washing water stored in the main washing tank 60 is stored above the full water level. Then, the washing water stored in the main washing tank 60 is discharged from the opening through the overflow pipe 61 together with oil and leftovers floating near the surface of the washing water stored in the main washing tank 60. Thereby, the cleanliness of the main cleaning tank 60 can be improved.

At this time, in the circulation rinsing step, the main washing tank 60 exceeds the full water level to store the washing water, and the washing water stored in the main washing tank 60 is discharged through the overflow pipe 61, so that the circulation rinsing step is completed. The amount of wash water stored in the circulating rinsing tank 80 is smaller than that in the first embodiment.

Then, in the finishing rinse step performed after the circulation rinse step, the same amount of fresh water as in the first embodiment is dropped and flowed into the circulation rinse tank 80. At this time, as compared with the first embodiment, the amount of washing water flowing from the circulating rinse tank 80 to the main cleaning tank 60 through the flow pipe 25 is reduced, and the highly clean fresh water that has fallen and flowed into the circulating rinse tank 80 is charged. More water can be stored. Then, the cleanliness of the washing water stored in the circulating rinse tank 80 can be effectively improved.

(Setting the tilting operation of the switching plate in the finishing rinse step)
Next, the change of the control method regarding the switching of the inclination of the switching plate 124 in the finishing rinsing step will be specifically described with reference to FIG.

In the finishing rinsing step of the first embodiment, the switching plate 124 is kept tilted toward the circulation rinsing tank 80 from the start to the end of the finishing rinsing step. In the finishing rinsing step of the second embodiment, the switching plate 124 is tilted from the circulating rinsing tank 80 side to the main washing tank 60 side at the timing when the time preset in advance on the control panel 18 has elapsed from the start of driving the finishing rinsing pump 50. It is controlled so that it can be tilted from the main cleaning tank 60 side to the circulation rinse tank 80 side.

For example, the timing of tilting the switching plate 124 from the circulation rinse tank 80 side to the main cleaning tank 60 side is set after the cleaning water stored in the circulation rinse tank 80 is filled with water in the finishing rinse step.

Then, the fresh water stored in the finishing rinsing tank 40 is sucked in by the finishing rinsing pump 50 and discharged, and is sprayed from the finishing rinsing nozzles 53 and 54 in the cleaning chamber 30. The jetted fresh water falls and flows into the main cleaning tank 60 and mixes with the cleaning water stored in the main cleaning tank 60. As a result, the cleanliness of the washing water stored in the main washing tank 60 can be improved.

Then, after the finishing rinsing step is completed, the switching plate 124 is tilted from the main cleaning tank 60 side to the circulating rinsing tank 80 side.

(Integration of various times, etc.)
Next, the integration of various times and the like performed by the control panel 18 in the operation of the cleaning device 1 will be specifically described with reference to FIG.

Since the cleaning device 1 electrically connects the control panel 18 and each device, the number of times each step is performed and the number of times each device is driven are counted and recorded. Specifically, for example, it is the number of times from the main cleaning step to the finishing rinsing step up to the present, starting from the time when the number of times was initialized last time.

By recording the number of times the cleaning step to the finishing rinsing step have been performed in this way, it can be confirmed on the display of the display unit of the control panel 18. When the control panel 18 of the cleaning device 1 is connected to a communication network such as the Internet, the control panel 18 of the cleaning device 1 transmits the number of times to the host computer, and the host computer browses the data of those times. It is possible to do.

Further, when the control panel 18 of each cleaning device 1 is not connected to a communication network such as the Internet, the number of times of maintenance of the cleaning device 1 is recorded on a recording medium and read by a computer or the like. It is possible to browse.

As a result, the state of each cleaning device 1 can be predicted, the time for performing maintenance can be determined based on the number of times, and the failure of the cleaning device 1 can be suppressed.

The number of recordings is not limited to the number of times from the main cleaning step to the finishing rinsing step, and for example, the number of times the on-off valve 42 of the water supply unit 41 of the finishing rinsing tank 40 is opened and closed and the inclination of the switching plate 124 are changed. The number of times the drive means 122 is driven, the number of times the door portion 11 is opened and closed, the number of times the drain valve 49c is opened and closed in the drainage step, the temperature of the washing water stored in the main washing tank 60 and the circulation rinsing tank 80, and the temperature of the fresh water stored in the finishing rinsing tank 40. It is also possible to record the history and the like.

It should be noted that what is recorded is not limited to the number of times, and the length of time during which each member is driven or operated may be recorded. For example, an operation preparation step, a main cleaning step, a drainage step, a circulation rinsing step, and a finishing rinsing step may be recorded. , It is also possible to record the cumulative total of time spent doing each.

It should be noted that the integration of various times and the recording of time can be initialized by operating the control panel 18 or by instructing through a communication network such as the Internet. Initialization is performed when the remaining amount of the storage capacity of the storage unit (not shown) inside the control panel 18 decreases and new storage becomes difficult. The storage unit may be a fixed storage medium built in the control panel 18, or may be a storage medium detachable from the control panel 18.

(Embodiment 3)
Next, the third embodiment of the present invention will be described with reference to FIGS. 16 and 18.

In the third embodiment of the present invention, the case where the start and end timings of the drainage step performed by the cleaning device 1 described in the first embodiment are performed at different timings from the first embodiment will be described. The operation of the cleaning device 1 is the same as that of the first embodiment except for the portion described in the third embodiment. Further, the configuration of the cleaning device 1 is the same as that of the cleaning device 1 described in the first embodiment, and thus is omitted.

(Change of start and end timing of drainage step)
The timing of the start and end of the drainage step can be set by operating the control panel 18. The drainage step is started at a timing when a predetermined time preset on the control panel 18 has elapsed from the start of the main cleaning step. Further, the end of the drainage step is performed at a timing when a predetermined time preset on the control panel 18 from the start of the drainage step, for example, 0.5 to 1.0 second has elapsed.

First, a case where the start timing of the drainage step is between the start and the end of the main cleaning step will be described.

In the main washing step, the washing water stored in the main washing tank 60 in the state shown in FIG. 16 is sucked and discharged by the main washing pump 70, and is discharged from the main washing nozzles 72 and 73 into the tableware for a predetermined time in the washing chamber 30. While the washing water is sprayed toward the main washing tank 60, the drain valve 68b of the main washing tank 60 is opened for a predetermined time to drain the washing water stored in the main washing tank 60. As a result, in a state where the cleaning water is sprayed from the main cleaning nozzles 72 and 73 in the cleaning chamber 30, dirt and leftovers accumulated inside the strainer 65 can be discharged from the main cleaning tank 60 together with the cleaning water.

Further, the cleaning water that falls and flows from the cleaning chamber 30 to the main cleaning tank 60 via the water collecting unit 110 and the switching unit 120 and the cleaning water sucked by the main cleaning pump 70 are stored in the main cleaning tank 60. The wash water is in a stirred state. As a result, oil and leftovers having a smaller specific gravity than the washing water, which was difficult to be discharged in the draining step of the first embodiment, can be mixed with the washing water and discharged together with the washing water to the main washing tank 60. It is possible to suppress a decrease in the cleanliness of the stored washing water.

Further, the time used for one washing cycle can be shortened, the number of washing cycles that can be performed within a predetermined time can be increased, and the dishes can be washed efficiently.

Next, a case where the start timing and the end timing of the drainage step are set between the start and end of the circulation rinsing step will be described.

As shown in FIG. 18, in the circulation rinsing step, with the switching plate 124 tilted toward the main cleaning tank 60, the cleaning water stored in the circulation rinsing tank 80 is sucked and discharged by the circulation rinsing pump 90, and the cleaning chamber 30 is used. Washing water is sprayed from the circulating rinse nozzles 93 and 94 toward the tableware for a predetermined time. The washing water sprayed in the washing chamber 30 drops and flows into the main washing tank 60 via the water collecting section 110 and the switching section 120, and is stored in the main washing tank 60.

At this time, the washing water stored in the main washing tank 60 is not drained by the draining step, so that the water level is substantially full.

Then, the full water sensor 63 that detects the full water level sends a signal to the control panel 18, and the control panel 18 receives the signal to drive the driving means 122 of the switching unit 120 to circulate the switching plate 124 on the rinsing tank 80 side. Tilt to.

Then, after tilting the switching plate 124 toward the circulating rinse tank 80, the cleaning tank 80 is sprayed from the circulating rinse nozzles 93 and 94 in the cleaning chamber 30 to circulate the cleaning water via the water collecting unit 110 and the switching unit 120. The tableware is circulated and rinsed by letting it flow and circulate.

The drainage step is started during the circulation rinse step performed in this way, and the drainage step is completed between the start and the end of the circulation rinse step.

After the circulation rinsing step performed between the start and the end of the drainage step is completed, the finishing rinsing step is started, and the fresh water stored in the finishing rinsing tank 40 is sucked and discharged by the finishing rinsing pump 50 in the washing chamber 30. It is sprayed from the finishing rinse nozzles 53 and 54 toward the tableware for a predetermined time. The fresh water sprayed toward the tableware falls and flows into the circulating rinse tank 80 via the water collecting section 110 and the switching section 120, and the washing water stored in the circulating rinse tank 80 is stored until it is full.

Then, after the circulating rinse tank 80 is full, the fresh water stored in the finishing rinse tank 40 that further flows into the circulating rinse tank 80 mixes with the washing water stored in the circulating rinse tank 80, and the flow pipe 25 is formed. The washing water flows into the main washing tank 60 through the main washing tank 60, and the washing water stored in the main washing tank 60 is stored up to the full water level.

As a result, in order to drain the washing water stored in the main washing tank 60 in a state where there is no flow of the washing water to the main washing tank 60 through the switching plate 124 after starting the circulation rinsing step, the washing water is drained in the main washing tank 60. It is possible to drain the washing water stored in the main washing tank 60 in a state where the washing water stored in the main washing tank 60 has calmed down. Since the washing water stored in the main washing tank 60 is in a calmed state, leftovers and the like having a larger specific weight than the washing water stored in the main washing tank 60 mixed in the washing water inside the strainer 65 are discharged. It is possible to effectively discharge leftovers and the like having a higher specific gravity than the washing water that has been settled and stored in the main washing tank 60. As a result, it is possible to effectively suppress the deterioration of the cleanliness of the washing water stored in the main washing tank 60.

Further, the time used for one washing cycle can be shortened, the number of washing cycles that can be performed within a predetermined time can be increased, and the dishes can be washed efficiently.

The amount of washing water drained from the main washing tank 60 may be increased by the draining step. In that case, the amount of washing water drained from the main washing tank 60 can be increased by lengthening the time of the draining step. Further, by increasing the diameter of the drain pipe 68c of the main cleaning tank 60, it is possible to increase the amount of cleaning water drained from the main cleaning tank 60 in a shorter time.

The amount of wash water drained from the main wash tank 60 by the drain step is the same as the amount of fresh water sprayed in the finish rinse step, or smaller than the amount of fresh water sprayed in the finish rinse step. That is, the amount of washing water drained from the main washing tank 60 by the draining step is at least the same amount (or less than the same amount) as compared with the amount of fresh water sprayed in the finishing rinse step.

Therefore, the amount of wash water drained from the main wash tank 60 is increased by the drain step, and when the amount is larger than the amount of fresh water to be sprayed, the amount of fresh water to be sprayed per unit time is increased or the finish rinse is performed in the finish rinse step. It is preferable to lengthen the driving time of the finishing rinsing pump 50 in the finishing step while keeping the amount of fresh water sprayed per unit time in the step.

By setting the control panel 18 to increase the amount of wash water drained from the main wash tank 60 by the drain step, the drive time of the finish rinse pump 50 that sucks and discharges the fresh water stored in the finish rinse tank 40 is lengthened. It may be set automatically in conjunction with the above.

By setting the control panel 18 to lengthen the drive time of the finishing rinsing pump 50 that sucks and discharges the fresh water stored in the finishing rinsing tank 40 in the finishing rinsing step, the washing is drained from the main washing tank 60 by the draining step. It may be set automatically in conjunction with increasing the amount of water.

(Embodiment 4)
(Regarding the configuration change of the steps that make up the cleaning cycle)
In the first embodiment, one washing cycle is composed of five steps of a main washing step, a drainage step, a circulation rinsing step, a finishing rinsing step, and a re-cleaning preparation step, but in the fourth embodiment, one washing cycle is used. , Rearrange the order of the steps and perform some steps multiple times. The operation of the cleaning device 1 is the same as that of the first embodiment except for the portion described in the fourth embodiment. Further, the configuration of the cleaning device 1 is the same as that of the cleaning device 1 described in the first embodiment, and thus is omitted.

The rack R containing the tableware is housed in the washing chamber 30, and the door portion 11 is closed. After the operation preparation step is completed, one washing cycle is performed in the following order.
・ First main cleaning step ・ Drainage step ・ First circulation rinsing step ・ Second main cleaning step ・ Second circulation rinsing step ・ Finishing rinsing step ・ Re-cleaning preparation step

Since the first main cleaning step, the drainage step, and the first circulation rinse step are the same as the main cleaning step, the drainage step, and the circulation rinse step described in the first embodiment, they are omitted.

In the second main cleaning step, the switching plate 124 is tilted from the circulation rinsing tank 80 side to the main cleaning tank 60 side, and the main cleaning step described in the first embodiment is performed again. The switching plate 124 is kept tilted toward the main cleaning tank 60 even after the second main cleaning step is completed.

Then, as the second circulation rinsing step, the washing water stored in the circulation rinsing tank 80 is sucked and discharged by the circulation rinsing pump 90, and is ejected from the circulation rinsing nozzles 93 and 94 toward the tableware in the washing chamber 30. Then, for example, one second after the circulation rinsing pump 90 starts driving, the switching plate 124 is tilted from the main cleaning tank 60 side to the circulation rinsing tank 80 side.

As a result, the cleaning water having a low degree of cleanliness remaining in the cleaning chamber 30 in the second main cleaning step can be dropped and flowed into the main cleaning tank 60 and then dropped and flowed into the circulating rinse tank 80. It is possible to suppress a decrease in the cleanliness of the washing water stored in the circulating rinse tank 80.

After tilting the switching plate 124 toward the circulating rinsing tank 80, the sprayed washing water washes the dishes and drops and flows into the circulating rinsing tank 80 via the water collecting section 110 and the switching section 120 to determine the predetermined size. Wash the dishes by circulating the washing water for hours.

After the second circulation rinsing step is completed, the finishing rinsing step and the re-cleaning preparation step are performed, but they are omitted because they are the same as the finishing rinsing step and the re-cleaning preparation step described in the first embodiment.

By rearranging the order of the steps in this way and performing some steps a plurality of times, the time for spraying the washing water at a predetermined temperature on the tableware is increased, and the washing property of the tableware can be improved. In addition, the time during which the washing water at a predetermined temperature comes into contact with the tableware increases, the temperature of the tableware is raised, and dirt adhering to the tableware can be easily removed, so that the tableware can be effectively washed.

Further, since the drainage step is performed only after the first main washing step, the amount of washing water drained in one washing cycle is substantially the same as that in the first embodiment, and the washing property of the tableware is improved. be able to. Then, a predetermined amount of washing water that comes into contact with the dirty tableware for the first time by using it for eating in the first main washing step is drained by the draining step before the second main washing step, and is circulated in the first circulation rinsing step. By causing the washing water stored in the rinsing tank 80 to fall and flow into the main washing tank 60, it is possible to suppress a decrease in the cleanliness of the washing water used for washing the dishes in the second main washing step, and to make the dishes more effective. Can be washed.

It should be noted that the configuration of the steps of the cleaning cycle illustrated is not limited, and each step can be further rearranged. Further, if the stains adhering to the tableware used for eating are strong, a third main washing step, a third circulation rinsing step, and the like may be added.

In the cleaning device 1 of the present invention, the main cleaning upper nozzle 72 and the finishing rinse upper nozzle 53, and the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are based on the pressure of the cleaning water or fresh water sprayed from the rotary nozzle port. Although it rotates, the main cleaning upper nozzle 72 and the finishing rinse nozzle 53, and the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 may be rotated by providing and connecting a driving means, for example, a motor.

In that case, the main cleaning upper nozzle 72 and the finishing rinse upper nozzle 53, and the main cleaning lower nozzle 73 and the finishing rinse lower nozzle 54 are formed by electrically connecting an inverter to the motor and periodically changing the operating frequency of the motor. By periodically changing the rotation speed of the tableware and changing the spraying range of the washing water and the fresh water to be sprayed on the tableware stored in the rack R, it is possible to cope with various washings.

Further, in the main cleaning step and / or the finishing rinsing step, the main cleaning nozzles 72 and 73 and the finishing rinsing nozzles 53 and 54 may be rotated before starting each step. In that case, after rotating the main cleaning nozzles 72, 73 and the finishing rinse nozzles 53, 54, the main cleaning pump 70 and the finishing rinse pump 50 are driven to drive the main cleaning nozzles 72, 73 and the finishing rinse nozzles 53, 54. Immediately after the start of spraying the washing water or fresh water from the table, the washing water or fresh water can be sprayed more evenly on the entire tableware stored in the rack.

In the cleaning device 1 of the present invention, an inverter is electrically connected to at least one of the cleaning pump 70, the circulation rinsing pump 90, and the finishing rinsing pump 50, and the operating frequency is periodically changed. You may. In that case, in at least one of the main washing step, the circulation rinsing step, and the finishing rinsing step, the spraying range and pressure of the washing water and the fresh water to be sprayed on the tableware stored in the rack R can be changed to perform various washings. Can be accommodated.

During the washing of dishes by the washing device 1 of the present invention, when the amount of washing water stored in the main washing tank 60 and the circulating rinsing tank 80 becomes smaller than the full amount, the main washing of fresh water is performed from tap water or the like. Although the tank 60 and the circulation rinse tank 80 are not provided with a supply unit for supplying fresh water, the main cleaning tank 60 and the circulation rinse tank 80 may be provided with a supply unit for supplying fresh water from tap water or the like.

The cleaning method and the cleaning device of the present invention can be developed not only for cleaning tableware but also for cleaning machine parts, containers for transporting articles, boxes, and the like.

R Rack 1 Cleaning device 5 Frame 6 Partition member (frame)
10 Upper outer shell 11 Door 12a Door front 12b Door left side 12c Door right side 13 Top plate 14 Window 15 Handle 16 Door stopper 17 Back plate 18 Control panel 20 Lower outer 21a Front decorative plate (decorative plate) )
21b Left side decorative board (decorative board)
21c Right side decorative board (decorative board)
22 Grip part 23 Base part 24 Leg part 25 Flow pipe (overflow part)
30 Cleaning room 31 First door arm (door opening / closing means)
32 Second door arm (door opening / closing means)
33 Drive means (door opening / closing means)
34 Drive shaft (door opening / closing means)
35 Elastic member (door opening / closing means)
36 Guide member (door opening / closing means)
37 Rack support 40 Finishing rinse tank 41 Water supply 42 On-off valve 43 Overflow piping 44 First heating means (heating means)
45 Second heating means (heating means)
46 Full water sensor 47 Temperature sensor 48 Suction port 49a Drainage port (drainage part)
49b Drainage pipe (drainage part)
49c drain valve (drain part)
50 Finishing rinse pump (water supply means)
51a First finishing rinsing pipe (finishing rinsing pipe)
51b Second finish rinsing pipe (finish rinsing pipe)
51c Third finishing rinsing pipe (finishing rinsing pipe)
51d 4th finishing rinsing pipe (finishing rinsing pipe)
52a Connection part (fitting part)
52b Rotating shaft part (fitting part)
53 Finishing Rinse Top Nozzle (Finishing Rinse Nozzle)
54 Finishing rinse bottom nozzle (finishing rinse nozzle)
55 Nozzle port 56 Nozzle tip 60 Cleaning tank 61 Overflow pipe 62 Third heating means (heating means)
63 Full water sensor 64 Temperature sensor 65 Strainer 66 Suction port 67 Rectifying plate (rectifying unit)
68a Drainage port (drainage section)
68b Drain valve (drain part)
68c Drainage pipe (drainage part)
69 Inflow opening 70 Cleaning pump (water supply means)
71a First main cleaning pipe (main cleaning pipe)
71b Second main cleaning pipe (main cleaning pipe)
71c Third main cleaning pipe (main cleaning pipe)
71d 4th main cleaning pipe (main cleaning pipe)
71e Fifth main cleaning pipe (main cleaning pipe)
72 Main cleaning nozzle (main cleaning nozzle)
73 Nozzle under main cleaning (main cleaning nozzle)
74 Hemispherical protrusion 75 Nozzle port 76 Connection opening 80 Circulation rinsing tank 81 Fourth heating means (heating means)
82 Full water sensor 83 Temperature sensor 84 Strainer 85 Suction port 86a Drainage port (drainage part)
86b Drain valve (drain part)
86c drainage pipe (drainage part)
87 Outflow opening 90 Circulation rinsing pump (water supply means)
91a First circulation rinsing pipe (circulation rinsing pipe)
91b Second circulation rinsing pipe (circulation rinsing pipe)
91c Third circulation rinsing pipe (circulation rinsing pipe)
91d 4th circulation rinsing pipe (circulation rinsing pipe)
91e Fifth circulation rinsing pipe (circulation rinsing pipe)
91f 6th circulation rinsing pipe (circulation rinsing pipe)
91g 7th circulation rinsing pipe (circulation rinsing pipe)
92 Nozzle connection (circulation rinse piping)
93 Circulating rinse top nozzle (circulating rinse nozzle)
94 Circulating rinse bottom nozzle (circulating rinse nozzle)
95 Nozzle port 96 Nozzle tip 100 Water return plate 101a Front side water return plate 101b Left side water return plate 101c Right side water return plate 110 Water collection part 111 Side wall 112 Inclination 113 Opening 114 Overhang Part 120 Switching part 121 Flow inclined part 122 Driving means 123 Contact part 124 Switching plate 125 Folding part (guidance means)
126 Support 127 Limit switch (sensor)
130 Leftovers receiving part 131 Supporting part 132 Leftovers basket 133 Drainage receiving part 134 Drainage port

Claims (10)

The main cleaning step of spraying the cleaning water stored in the main cleaning tank in the cleaning chamber toward the object to be cleaned to clean it, and then dropping it into the main cleaning tank to circulate and clean the object to be cleaned.
A drainage step for draining a predetermined amount of the washing water stored in the main washing tank,
Starting after the completion of the main cleaning step, cleaning water having a higher cleanliness than the cleaning water stored in the main cleaning tank stored in the circulating rinse tank is sprayed onto the object to be cleaned, and the cleaning water is washed by the main cleaning. A circulation rinsing step in which the object to be cleaned is washed by circulating it by dropping and flowing it into the circulating rinse tank after dropping and flowing it into the tank.
Including at least
At least from the end of the main cleaning step to the end of the circulating rinsing step, one cleaning cycle for performing the drainage step is formed.
When the washing cycle is repeated, at least the same amount of washing water as the washing water drained from the main washing tank by the draining step is dropped and flowed into the main washing tank in the circulation rinsing step, and then the washing water is applied. A cleaning method characterized by dropping and flowing into the circulating rinsing tank. The cleaning method according to claim 1, wherein the drainage step is started after the completion of the main cleaning step. The cleaning method according to claim 1, wherein the drainage step is started before the end of the main cleaning step. The washing cycle is characterized by including a finishing rinsing step in which fresh water stored in the finishing rinsing tank in the washing chamber is sprayed onto the washed object to be washed by the circulating rinsing step and then dropped and flowed into the circulating rinsing tank. The cleaning method according to any one of claims 1 to 3. The cleaning method according to any one of claims 1 to 4, wherein a rest period, which is a predetermined time, is provided between the main cleaning step and the circulation rinsing step. A cleaning device that repeats a cleaning cycle in which a plurality of different cleaning waters are sequentially jetted toward an object to be cleaned in a cleaning chamber to wash the object to be cleaned.
A main cleaning tank that stores cleaning water for performing main cleaning by injecting and circulating it in the cleaning chamber to clean the object to be cleaned.
A drainage unit that drains a predetermined amount of the washing water stored in the main washing tank whose cleanliness has deteriorated by washing the object to be washed, and
After the main cleaning, the cleaning water is sprayed and circulated in the cleaning chamber to store the cleaning water having a higher cleanliness than the cleaning water stored in the main cleaning tank for performing the circulation rinsing to wash the object to be cleaned. With the tank
By switching the inclination of the switching plate, which is a plate-shaped member provided below the cleaning chamber, the cleaning water sprayed in the cleaning chamber is sent to one of the selected main cleaning tank or the circulating rinsing tank. And the switching part that guides it to fall and flow,
At least one water feeding means for sucking and discharging the washing water stored in the main washing tank or the washing water stored in the circulating rinsing tank through a pipe and injecting the washing water in the washing chamber.
Equipped with
When performing the circulation rinse,
By switching the inclination of the switching plate, at least the same amount of washing water as the washing water drained by the drainage portion is dropped and flowed into the main washing tank, and then dropped and flowed into the circulation rinse tank. A cleaning device characterized by. A finish rinsing tank for storing fresh water for performing finish rinsing by spraying in the washing room to wash the object to be washed is provided, and the fresh water sprayed in the washing room is circulated by a switching plate tilted toward the circulation rinsing tank side. The cleaning device according to claim 6, wherein the cleaning device is dropped and flowed into a rinsing tank. The means of water supply is
A main cleaning pump that sucks in and discharges the cleaning water stored in the main cleaning tank through the main cleaning pipe that allows the cleaning water stored in the main cleaning tank to flow, and injects it in the cleaning chamber.
A circulation rinse pump that sucks in and discharges the wash water stored in the circulation rinse tank through the circulation rinse pipe that allows the wash water stored in the circulation rinse tank to flow, and injects it in the wash chamber.
A finishing rinsing pump that sucks in and discharges the fresh water stored in the finishing rinsing tank through the finishing rinsing pipe that allows the fresh water stored in the finishing rinsing tank to flow, and injects it in the washing room.
Equipped with
The present invention is characterized in that the main cleaning pipe and the main cleaning pump, the circulation rinsing pipe and the circulation rinsing pump, and the finishing rinsing pipe and the finishing rinsing pump are configured by different piping systems. 7. The cleaning device according to 7. In the finishing rinse
When the fresh water is dropped and flowed into the circulating rinse tank and the washing water stored in the circulating rinse tank becomes higher than the predetermined water level, the washing water stored in the circulating rinse tank is made to flow to the main washing tank. The cleaning apparatus according to claim 7 or 8, wherein the cleaning apparatus is provided with a flow tube capable of the like. The cleaning device according to claim 8 or 9, wherein at least a part of the main cleaning pipe or the circulation rinsing pipe has a rectangular cross section in a direction orthogonal to the pipe length direction.

Images