JP2010187961A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher, achieving convenience for use and good installation efficiency by reducing a washing tub and a dishwasher body in weight. <P>SOLUTION: This dishwasher includes: the dishwasher body 1 opened forward and formed to have a substantially square section; both fixing rails 3 fitted to both inside surfaces of the dishwasher body 1; both movable rails 4 slidably mounted to both of the fixing rails 3, respectively; and a resin-made washing tub 2 provided with an opening at the upside, both outside surfaces of which are fitted with both of the movable rails 4. Both of the movable rails 4 are disposed substantially on the upside of the washing tub 2, thereby improving the sealing ability between the washing tub 2 and an inner lid 19 closing the upside of the washing tub 2 when the washing tub 2 is stored in the dishwasher body 1 while reducing the weight of the dishwasher body 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dishwasher for washing tableware and cooking items in a general household.

  Conventionally, this type of dishwasher has a structure as shown in FIGS. Hereinafter, the configuration will be described.

  As shown in FIGS. 5, 6, and 7, a washing tub 2 (movable side box) that opens upward is housed in a dishwasher body 1 (fixed side box) that opens forward, The washing tank 2 is constituted by a slide rail 5 constituted by both fixed rails 3 attached to both inner side surfaces 1a of the dishwasher main body 1 and both movable rails 4 slidably mounted on the both fixed rails 3, respectively. It is movable in the front-rear direction and is configured to be drawn out from the front opening of the dishwasher body 1.

  Further, the cleaning tank 2 is formed by resin molding, and the slide rail 5 is disposed at a substantially bottom portion of the cleaning tank 2.

  The dishwasher main body 1 is basically installed in the kitchen cabinet A, but the dishwasher main body 1 can also be used by being fixed on a table at the installation location.

  The washing tub 2 includes a table basket 7 for storing the tableware 6 therein. In the washing tub 2, a heating means 8 (for example, a sheathed heater) for heating the washing water in the washing tub 2 is provided. The cleaning means 9 (for example, a cleaning pump) pressurizes the cleaning water and sprays the cleaning water from the injection hole 11 of the cleaning nozzle 10 to clean the tableware 6 stored in the tableware basket 7. The water supply valve 12 supplies tap water to the cleaning tank 2. The washing water in the washing tank 2 is drained by the draining means 13.

  The filter 14 is provided in the washing tank 2 and collects leftovers (food that has adhered to the tableware 6 as dirt is called leftovers) during the washing and rinsing steps. The blowing means 15 operates in a drying process, blows air outside the dishwasher main body 1 into the washing tank 2 and exhausts it from the exhaust port 16, thereby drying the tableware 6 in the washing tank 2.

  The temperature detection means 17 detects the temperature of the cleaning water, air and the heating means 8 through the cleaning tank 2.

  The control device 18 controls the water supply valve 12 to supply cleaning water into the cleaning tank 2 and controls the heating means 8 based on the output of the temperature detection means 17, as well as the cleaning means 9 and the water supply valve. 12, the drainage means 13, the blower means 15 and the like are controlled to sequentially control a series of steps of washing, rinsing and drying.

  As shown in FIGS. 5 and 6, the inner lid 19 is provided with a packing 20 around it, and when the washing tub 2 is stored in a predetermined position of the dishwasher main body 1, The periphery of the upper part 2A of the cleaning tank 2 comes into contact with the upper opening of the cleaning tank 2 and closes the opening. Even if the cleaning water is supplied to the contact portion between the cleaning tank 2 and the inner lid 19, the cleaning water can be prevented from going out of the cleaning tank 2 by the packing 20.

To explain the operation in the above configuration, the user pulls out the washing tub 2 from the dishwasher main body 1, places the tableware 6 in the tableware basket 7, stores it in the washing tub 2 and puts the detergent, It is stored in the dishwasher body 1. When the operation is started, the drainage means 13 is operated first, and the washing water (referred to as residual water) remaining in the washing tank 2 in the previous operation or the like is discharged out of the dishwasher main body 1.

  Next, the water supply valve 12 operates to supply cleaning water to the cleaning tank 2. When the predetermined cleaning water is supplied, the cleaning means 9 pressurizes the cleaning water, and the cleaning water is sprayed from the injection holes 11 provided in the cleaning nozzle 10 together with the detergent. Thus, the cleaning process is performed. In this cleaning process, the heating means 8 provided in the cleaning tank 2 is energized to heat the cleaning water to a predetermined temperature in the cleaning process.

  After a predetermined time of the washing process, the washing water containing dirt washed off from the tableware 6 is discharged out of the tableware washing machine main body 1 by the drainage means 13.

  Subsequently, the cleaning water is newly supplied and sprayed again from the injection hole 11 provided in the cleaning nozzle 10, and the process of rinsing the tableware 6 soiled with detergent, leftovers or the like is executed.

  When this rinsing process is completed, the washing water is discharged out of the dishwasher main body 1 again. This rinsing process is repeated several times in succession. In the cleaning and rinsing process, the leftovers are collected in the filter 14 provided in the cleaning tank 2. When the predetermined number of rinsing steps are completed, the drying step is started. In this process, the air blowing means 15 operates and air outside the dishwasher main body 1 is sent into the cleaning tank 2. The air sent in is heated by the heating means 8, and then the tableware 6 is dried and discharged out of the dishwasher main body 1 through the exhaust port 16. After the drying process is completed, the operation is terminated.

In addition, in the last rinse process among rinse processes, in order to improve the drying performance of the tableware 6, you may perform the heating rinse process by which washing water is heated to about 70 degreeC.
Japanese Patent No. 3485772

  However, the configuration of the conventional dishwasher body 1 as shown in FIGS. 5 and 6 has the following problems.

  As shown in FIG. 5 and FIG. 6, the cleaning tank 2 has an opening at the top and is drawn out to the front of the dishwasher main body 1. Therefore, the cleaning tank 2 is formed of metal parts such as iron and SUS. Heating means 8 composed of a slide rail 5 and a sheathed heater, cleaning means 9 composed of a cleaning pump having an induction motor, etc., draining means composed of a drain pump having a cornering motor, etc. 13. It is necessary to attach components having a mass of several hundred g to several kg, such as the air blowing means 15 composed of a multiblade fan having a cornering motor or the like. Therefore, it is necessary for the cleaning tank 2 to be formed with screw bosses, holes, mounting surfaces, etc. so that these components can be mounted, and the shape can be freely formed, such as polypropylene, ABS, polyacetal, nylon, etc. It is made of material.

  On the other hand, in the operation sequence for cleaning and drying the dishes, in order to make effective use of the enzyme components of the detergent and to easily remove oil from the dishes 6, the washing water is heated by the heating means 8 at about 60 ° C. in the cleaning process. In order to improve the drying performance, the washing water is heated to about 70 ° C. in the final rinsing step.

Therefore, the cleaning tank 2 is also heated to 60 ° C. or 70 ° C. However, since the cleaning tank 2 is molded with resin, when it is heated to 60 ° C. or 70 ° C., thermal deformation occurs, and the upper part of the cleaning tank 2 2A may spread outward.

  When the upper part 2A of the cleaning tank 2 spreads outward, as shown in FIG. 8, a gap H is formed in the seal portion between the upper part 2A of the cleaning tank 2 and the packing 20 of the inner lid 19, and the cleaning water is washed from the gap H. It leaks out of the tank 2 and the washing water accumulates at the bottom of the tableware washing machine main body 1, and washing and rinsing are performed with an amount of washing water smaller than a predetermined amount in the washing process and the rinsing process. As a result, there arises a problem that dishwashing and rinsing failures occur.

  In order to solve the above problem, that is, the upper part of the cleaning tank 2 so that, even if the upper part 2A of the cleaning tank 2 is thermally deformed, it spreads outward and no gap H is formed in the seal portion between the inner lid 19 and the packing 20. In the vicinity of 2A, a reinforcing plate 21 made of a metal part such as iron or SUS as shown in FIGS. 9A and 9B is attached to correspond.

  However, in the configuration shown in FIGS. 9A and 9B, the reinforcing plate 21 is attached to the cleaning tank 2, which increases the weight of the cleaning tank 2. There is a problem that it becomes worse or the weight of the dishwasher main body 1 increases and it becomes difficult to attach the dishwasher main body 1.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to propose a dishwasher that is easy to use and easy to install by reducing the weight of a washing tank and a dishwasher body.

  In order to solve the above-described conventional problems, a dishwasher according to the present invention includes a dishwasher main body formed in a substantially square cross-section opening forward, and both fixed rails attached to both inner side surfaces of the dishwasher main body. , Both movable rails slidably mounted on both fixed rails, and a resin-made washing tank having an opening on the upper side and mounting both movable rails on both outer surfaces. It is arranged substantially at the top.

  Thus, by placing a slide rail including both movable rails formed of metal parts such as iron and SUS on the substantially upper part of the cleaning tank formed by resin molding, the upper part of the cleaning tank is shaped by both movable rails. Therefore, in the cleaning process and the heating rinsing process, the cleaning water is heated to 60 ° C., 70 ° C., etc. by being heated to 60 ° C., 70 ° C., etc. Even if the upper part tries to spread outward, it cannot be spread by both movable rails. As a result, the upper part of the washing tank and the middle lid that closes the upper part of the washing tank when the washing tank is stored in the dishwasher body It is possible to prevent a gap from being generated in a seal portion with the packing, and it is possible to prevent the cleaning water from leaking out of the cleaning tank.

  Since the dishwasher according to the present invention has the structure of claim 1, since the shape of the upper part of the washing tank is maintained by the two movable rails, the washing tank is thermally deformed so that the upper part of the washing tank spreads outward. However, it cannot be spread by both movable rails, and there is a gap between the upper part of the washing tank and the seal part between the packing of the middle lid that closes the upper part of the washing tank when the washing tank is stored in the dishwasher body. It is possible to prevent the cleaning water from leaking out of the cleaning tank.

  Therefore, unlike the conventional configuration, there is no need to separately provide a reinforcing plate made of metal parts such as iron or SUS near the upper part of the cleaning tank, so the weight of the cleaning tank can be reduced and the cleaning tank can be taken in and out. In addition, the usability can be improved and the weight of the dishwasher body itself can be reduced, so that the dishwasher body can be easily attached.

  The first invention is a dishwasher body formed in a substantially square cross section opening forward, both fixed rails attached to both inner side surfaces of the dishwasher body, and slidably mounted on both fixed rails. Both movable rails and a resin-made washing tub having openings on the upper side and mounting the two movable rails on both outer sides, and both movable rails are arranged substantially at the upper part of the washing tub. By placing a slide rail including both movable rails formed of metal parts such as iron and SUS on the substantially upper part of the cleaning tank formed by the above, the shape of the upper part of the cleaning tank is maintained by both movable rails. In the cleaning process and the heating rinsing process, the cleaning water is heated to 60 ° C., 70 ° C., etc. by being heated to 60 ° C., 70 ° C., etc. Even if you try to As a result, there is a gap between the upper part of the washing tank and the sealing part between the upper part of the washing tank and the packing of the middle lid that closes the upper part of the washing tank when the washing tank is stored in the dishwasher body. It is possible to prevent the cleaning water from leaking out of the cleaning tank.

  Therefore, unlike the conventional configuration, there is no need to separately provide a reinforcing plate made of metal parts such as iron or SUS near the upper part of the cleaning tank, so the weight of the cleaning tank can be reduced and the cleaning tank can be taken in and out. In addition, the usability can be improved and the weight of the dishwasher body itself can be reduced, so that the dishwasher body can be easily attached.

  In the second invention, in particular, the cleaning tank of the first invention is provided with a flange portion at an upper portion, and at least a side wall is provided on the flange portion where both movable rails are disposed, and the cleaning tank is provided. Since the cross-sectional area of the upper portion of the surface increases and the moment of inertia of the cross section increases, the strength of the upper portion of the cleaning tank can be improved. Therefore, the cleaning tank is heated to 60 ° C. or 70 ° C. and thermally deformed, and the upper part of the cleaning tank tends to spread outward, resulting in a gap between the upper part of the cleaning tank and the seal of the middle lid. Can be further prevented, and the washing water can be further prevented from leaking out of the washing tank.

  At the same time, since both movable rails can be stored in the upper part of the washing tank by the side walls, it can be washed when the user removes the washing tank from the dishwasher body or when wet dishes are taken in or out of the washing tank. It is possible to prevent water, water droplets, filth, and the like from adhering to both movable rails, causing the two movable rails to rust and / or to trap filth, thereby reducing the slidability of both movable rails.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.

Example 1
In the dishwasher main body 1 (fixed-side box-like body) opening forward shown in FIGS. 1 and 2, a cleaning tank 2 (movable-side box-like body) opening upward is housed inside. The washing tank 2 includes a slide rail 5 composed of both fixed rails 3 attached to both inner side surfaces of the dishwasher main body 1 and both movable rails 4 slidably mounted on the both fixed rails 3. Therefore, it can be pulled out from the front opening of the dishwasher body 1.

  The cleaning tank 2 is formed by resin molding, and the slide rail 5 is disposed substantially at the top of the cleaning tank 2 as shown in FIG.

  In addition, the slide rail 5 is loaded with a load such as the cleaning tank 2, the tableware 6 disposed in the cleaning tank 2, the cleaning water supplied in the cleaning process, and the like, and is formed of metal parts such as iron and SUS. Is.

  The dishwasher main body 1 is basically installed in the kitchen cabinet A, but the dishwasher main body 1 can also be used by being fixed on the installation place.

  The washing tub 2 stores a tableware basket 7 in which the tableware 6 is arranged. Further, heating means 8 (for example, a sheathed heater) for heating the cleaning water is provided in the cleaning tank 2, and the cleaning water is pressurized by the cleaning means 9 disposed on the lower surface of the cleaning tank 2 so that the cleaning water is washed. It is injected from the injection hole 11 of the cleaning nozzle 10 provided in the tank 2. The cleaning water in the cleaning tank 2 is supplied from the water supply valve 12 to the cleaning tank 2 and drained by the drainage means 13.

  The filter 14 is provided in the washing tank 2, and collects leftovers (food that has adhered to the dishes 6 as dirt is called leftovers) in the washing process for washing the dishes 6 and the rinsing process for the dishes 6. .

  The blowing means 15 operates in a drying process, supplies air outside the dishwasher main body 1 into the cleaning tank 2 and exhausts it from the exhaust port 16, thereby drying the tableware 6 in the cleaning tank 2.

  The temperature detection means 17 detects the temperature of the cleaning water, air, and heating means 8 in the cleaning tank 2.

  The control device 18 controls the water supply valve 12 to supply cleaning water into the cleaning tank 2 and controls the heating means 8 based on the output of the temperature detection means 17, as well as the cleaning means 9 and the water supply valve. 12, the drainage means 13, the blower means 15 and the like are controlled to sequentially control a series of steps of washing, rinsing and drying.

  1 and 2, the inner lid 19 is provided with a packing 20 around it, and when the washing tub 2 is stored in a predetermined position of the dishwasher main body 1, the packing 20 and the washing tub 2 are arranged. The upper part 2A periphery of the liquid is in contact with the upper part of the cleaning tank 2 to close the opening. Even if the cleaning water is supplied to the contact portion between the cleaning tank 2 and the inner lid 19, the cleaning water can be prevented from going out of the cleaning tank 2 by the packing 20.

  To explain the operation in the above configuration, the user pulls out the washing tub 2 from the dishwasher main body 1, places the tableware 6 in the tableware basket 7, stores it in the washing tub 2, puts the detergent, and then sets the washing tub 2. It is stored in the dishwasher body 1. Then, when the operation is started, the drainage means 13 is operated, and the cleaning water (referred to as residual water) remaining in the cleaning tank 2 in the previous operation or the like is discharged out of the dishwasher main body 1.

  Next, the water supply valve 12 operates to supply a predetermined amount of cleaning water to the cleaning tank 2.

  When a predetermined amount of washing water is supplied, the washing water is pressurized by the washing means 9 and the washing water is jetted from the injection holes 11 provided in the washing nozzle 10 together with the detergent. Thus, the cleaning process is performed. In this cleaning process, the heating means 8 provided in the cleaning tank 2 is energized to heat the cleaning water to a predetermined cleaning temperature (for example, 60 ° C.).

  When the washing process is performed for a predetermined time, the drainage means 13 discharges the washing water containing dirt washed off from the tableware 6 to the outside of the tableware washing machine main body 1. Then, the water supply valve 12 newly supplies cleaning water, and the cleaning water is sprayed again from the injection holes 11 provided in the cleaning nozzle 10, and the process of rinsing the tableware 6 soiled with detergent, leftovers, etc. is executed.

When this rinsing process is completed, the washing water is again discharged out of the dishwasher body 1. This rinsing process is repeated several times in succession. In the cleaning and rinsing process, the leftovers are collected in a filter 14 provided in the cleaning tank 2.

  When the predetermined number of rinsing steps are completed, the drying step is started. In this process, the air blowing means 15 operates and air outside the dishwasher main body 1 is sent into the cleaning tank 2. The air sent in is heated by the heating means 8, and then the tableware 6 is dried and discharged out of the dishwasher main body 1 through the exhaust port 16. After the drying process is completed, the operation is terminated.

  In the rinsing process performed a plurality of times, at least one rinsing process may be performed by rinsing the tableware 3 while heating the cleaning water by the heating means 8 (at this time, the cleaning water is heated to about 70 ° C., for example). May be).

  According to this embodiment configured as described above, as shown in FIGS. 1 and 2, iron or iron is formed on a substantially upper portion of the cleaning tank 2 formed by resin molding of polypropylene, ABS, polyacetal, nylon or the like. By arranging the slide rail 5 formed of metal parts such as SUS, the shape of the upper portion 2A of the cleaning tank 2 is maintained by the slide rail 5 and the both movable rails 4, so that the cleaning is performed in the cleaning process and the heating rinsing process. Even if water is heated to 60 ° C., 70 ° C., etc., the washing tank 2 is heated to 60 ° C., 70 ° C., etc. 5, and as a result, it is possible to prevent a gap H from being generated in the seal portion between the upper portion 2 </ b> A of the cleaning tank 2 and the packing 20 of the inner lid 19. It is possible to prevent leaking.

  Therefore, unlike the conventional configuration, there is no need to separately provide a reinforcing plate 21 made of metal parts such as iron or SUS in the vicinity of the upper portion 2A of the cleaning tank 2, so that the weight of the cleaning tank 2 can be reduced. The washing tank 2 can be easily taken in and out to improve usability, and the weight of the dishwasher main body 1 itself can be reduced, so that the dishwasher main body 1 can be easily attached.

  Then, as shown in FIGS. 1, 2, and 3, the flange portion 22 of the upper portion 2 </ b> A of the cleaning tank 2 is substantially below the left and right flange portions 23 in which at least both movable rails 4 of the slide rail 5 are disposed. 4A and 4B, the cross-sectional area of the upper part 2A of the cleaning tank 2 increases from α1 to α2, and the cross-sectional secondary moment increases. As a result, the strength of the upper portion 2A of the cleaning tank 2 can be improved. Therefore, the cleaning tank 2 is heated to 60 ° C., 70 ° C. or the like and thermally deformed, and the upper part 2A of the cleaning tank 2 tries to spread outward, and the upper part 2A of the cleaning tank 2 and the packing 20 of the inner lid 19 It is possible to further prevent the gap H from being generated in the seal portion, and to further prevent the cleaning water from leaking out of the cleaning tank 2.

  At the same time, both movable rails 4 can be accommodated in the upper part 2A of the washing tub 2 by the side walls 24, so that when the user puts the washing tub 2 in and out of the dishwasher main body 1 or when the wet tableware 6 is taken into the washing tub When the water is taken in or out, cleaning water, water droplets, dirt, etc. may adhere to both the movable rails 4, and both the movable rails 4 may be rusted or filth may be sandwiched, resulting in a decrease in the sliding properties of the two movable rails 4. Can be prevented.

  As described above, the dishwasher according to the present invention reduces the weight of the dishwasher body, and seals between the washing tank and the middle lid that closes the upper part of the washing tank when the washing tank is stored in the dishwasher. Therefore, it can be applied not only to household dishwashers but also to commercial dishwashers.

The longitudinal cross-sectional view of the front-back direction of the dishwasher of the Example of this invention Left and right vertical section of the dishwasher Partial sectional view near both movable rails of the dishwasher (A) Partial sectional view of the washing tank near the slide rail of the conventional dishwasher (b) Partial sectional view of the washing tank near the slide rail of the dishwasher of the embodiment of the present invention Longitudinal longitudinal section of a conventional dishwasher Left and right vertical section of the dishwasher Partial enlargement of the vicinity of the slide rail of the dishwasher The figure which shows the relationship between a washing tank and a middle lid when the temperature of the washing tank of the dishwasher rises (A) The figure which arranged the reinforcement board in the washing tank of the tableware washing machine (b) Sectional drawing of the reinforcement board of the tableware washing machine

DESCRIPTION OF SYMBOLS 1 Dishwasher 2 Washing tank 3 Both fixed rails 4 Both movable rails 22, 23 Flange part 24 Side wall

Claims (2)

A dishwasher main body formed in a substantially square cross-section opening forward, both fixed rails attached to both inner side surfaces of the dishwasher main body, and both movable rails slidably mounted on the two fixed rails, respectively And a resin-made washing tub having an opening on the upper side and attaching the two movable rails to both outer side surfaces, the two movable rails being arranged substantially above the washing tub. The dishwasher according to claim 1, wherein the cleaning tank includes a flange portion at an upper portion thereof, and at least a side wall is provided on the flange portion where both movable rails are disposed toward the lower portion.

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