JP2012019974A - Dishwasher - Google Patents

Abstract

Disclosed is a dishwasher having a drainage hose with improved oil resistance without impairing flexibility, which is a necessary function of the drainage hose of the dishwasher.
A cleaning tank for storing tableware, a cleaning nozzle disposed in the cleaning tank, a cleaning pump for pumping cleaning water to the cleaning nozzle, heating the cleaning water, and the tableware A heater 7 for performing drying, a drainage pump 9 for discharging cleaning water in the cleaning tank to the outside of the machine, and a drainage hose 10 connected thereto are provided. The drainage hose 10 has high oil resistance on the inside. The dishwasher has a drainage hose with improved oil resistance without sacrificing flexibility, because it is made of thin resin and consists of two layers of elastic elastomer with a certain thickness on the outside. can do.
[Selection] Figure 1

Description

  The present invention relates to a dishwasher for washing and drying dishes.

  Dishwashers are used with a water supply hose and a drainage hose connected. Especially in built-in type dishwashers installed in system kitchens, the connection between the water supply hose and the drainage hose is made compact. (For example, refer to Patent Document 1).

  FIG. 3 shows the dishwasher described in Patent Document 1, and the configuration thereof will be described below. A water supply hose 74, a water supply valve 75, and a drainage hose 76 are disposed above the back surface 72 of the dishwasher main body 71, and water is supplied from the water supply hose 74 through the water supply valve 75 into the washing tank, and at the bottom of the dishwasher main body 71. A structure for draining to the outside from the drain hose 76 connected to the drain pump 73 provided is shown.

Japanese Patent Laid-Open No. 2003-210378

  However, in the dishwasher described in the above-mentioned Patent Document 1, residual water may remain in the drainage hose 76 after the drainage operation is completed, and dishware having a large amount of edible oil such as salad oil adhered thereto. In households where washing is frequently performed, there is a problem that the drainage hose 76 is broken due to oxidative degradation due to oil.

  The present invention solves the above-described conventional problems, and provides a dishwasher that has a drain hose with excellent oil resistance without impairing flexibility, which is a function necessary for a drain hose of a dishwasher, and can improve durability. It is intended to provide.

  In order to achieve the above object, the present invention provides a dishwasher having a drainage hose comprising two layers made of an elastomer having a high oil resistance on the inside and a thin resin and having a certain degree of elasticity on the outside. .

  Thereby, the generation | occurrence | production of the tearing etc. of the drainage hose by oxidation deterioration by salad oil etc. can be eliminated, without impairing the flexible product required as a drainage hose used for a dishwasher.

  The dishwasher of the present invention has a drainage hose with improved oil resistance without impairing flexibility, which is a necessary function for the drainage hose of the dishwasher, and the drainage hose breaks due to oxidative degradation due to salad oil etc. A dishwasher with improved durability can be realized.

Side sectional view of the dishwasher according to Embodiment 1 of the present invention. Cross-sectional perspective view of the drainage hose of the dishwasher (A) Cross-sectional view of a conventional dishwasher (b) Rear perspective view of the dishwasher

  The first invention includes a cleaning tank for storing tableware, a cleaning nozzle that is disposed in the cleaning tank and injects cleaning water to the tableware, a cleaning pump that pumps cleaning water to the cleaning nozzle, and cleaning water A heater for warming water and drying the dishes, a drain pump for discharging the cleaning water in the cleaning tank to the outside of the machine, and a drain hose connected to the discharge side of the drain pump The drainage hose is composed of two layers made of a thin resin with high oil resistance on the inside and a thin wall on the outside, so that the oil resistance is maintained without sacrificing flexibility. Therefore, it is possible to realize a dishwasher having an improved drainage hose, which is free from breakage of the drainage hose due to oxidative degradation due to salad oil or the like and has improved durability.

(Embodiment 1)
FIG. 1 is a side sectional view of a dishwasher according to Embodiment 1 of the present invention, and FIG. 2 is a sectional perspective view of a drainage hose of the dishwasher. In FIG. 1, the cleaning tank 1 has an opening 2 on the upper side, the opening 2 is opened and closed by an inner pig 3, and a cleaning nozzle 4 for injecting cleaning water and the like is rotatably provided therein. A table basket 6 for storing the tableware 5 is disposed in the washing tank 1. When the tableware 5 is set in the tableware basket 6, the detergent is put in and the operation is started, the cleaning water is supplied into the cleaning tank 1 up to a predetermined water level. When the predetermined water level is reached, the water supply is stopped, and the cleaning pump 8 and heater 7 is energized, and the washing water is sprayed from the washing nozzle 4 toward the dishes 5 while being heated, and the dishes 5 are washed.

  In addition, a drainage pump 9 for discharging cleaning water to the outside of the machine is provided at the outer bottom of the cleaning tank 1, and a drainage hose 10 is connected to the discharge side of the drainage pump 9 for discharging cleaning water and the like to the outside of the machine. Has been. A blower fan 12 is provided on the front side of the cleaning tank 1 to take in the outside air into the cleaning tank 1 and discharge the air in the cleaning tank 1 to the outside from the exhaust port 13. Moreover, the control apparatus 11 which performs control, such as a heater 7, the washing | cleaning pump 8, the drainage pump 9, etc., and performs each process, such as a washing | cleaning process, a rinse process, and a drying process, is provided.

  The configuration of the drainage hose 10 will be described with reference to FIG. In the drainage hose 10, the inner layer 10a has a high oil resistance to salad oil and the like and is made of a thin resin, and the outer layer 10b has a structure composed of two layers made of an elastomer having a thickness larger than the thickness of the inner layer 10a and having a certain degree of elasticity. is there. As the resin material of the inner layer 10a, for example, polyethylene, polypropylene, fluorine resin, or silicon resin can be applied.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated. When the tableware 5 is set in the table basket 6 from the opening 2 of the washing tank 1 and the operation is started after the detergent is added, the water is first supplied into the washing tank 1 and the water supply is stopped when a predetermined water level is reached. When a predetermined amount of water is stored in the cleaning tank 1, a cleaning process is executed.

  The cleaning water in the cleaning tank 1 is heated by the heater 7, pressurized by the cleaning pump 8, sent to the cleaning nozzle 4, and sprayed from the cleaning nozzle 4 toward the dishes 5. The sprayed cleaning water circulates along a path that returns to the cleaning tank 1 after cleaning the dishes 5. This operation is performed for a predetermined time to complete the cleaning process. When the washing process is completed, the drainage pump 9 is energized, and the washing water is discharged outside the machine through the drainage hose 10.

  Next, washing water is newly supplied, and a rinsing process for rinsing the dishes 5 is performed by the same operation as the washing process. After rinsing with cold water and draining are repeated about three times, heating and rinsing are performed while energizing the heater 7 to complete the rinsing process. When this rinsing process is completed, the drainage pump 9 is energized, and the rinsing water is discharged outside the apparatus.

  Next, the heater 7 is intermittently energized while the blower fan 12 is operated, and air containing moisture in the cleaning tank 1 is discharged from the exhaust port 13 to the outside of the apparatus, and the dishes 5 are dried. This drying process is completed. Then, the dishwashing is completed.

  As described above, at the end of the cleaning process, during the rinsing process and at the end of the rinsing process, the cleaning water or rinsing water is discharged outside the machine through the drainage hose, but not all of the cleaning water or rinsing water is discharged. , Some remains in the drain pump or drain hose as residual water. In households that frequently wash dishes with a large amount of salad oil or the like, the residual water may contain salad oil or the like, but according to the present invention, the resin inside the drainage hose is highly resistant to oil such as salad oil. Therefore, even if it is used for a long time under such conditions, the drainage hose will not break due to oxidative degradation due to salad oil etc., and the outside is made of elastomer with a certain thickness of elasticity Therefore, a dishwasher with improved durability can be realized without impairing flexibility, which is a necessary function for the drainage hose.

  As mentioned above, since the dishwasher concerning this invention can improve the oil resistance with respect to the salad oil of a drainage hose, etc., without impairing flexibility, it is useful as a dishwasher etc. which have a drainage hose.

DESCRIPTION OF SYMBOLS 1 Washing tank 4 Washing nozzle 5 Tableware 7 Heater 8 Washing pump 9 Drainage pump 10 Drainage hose 11 Controller

Claims (1)

A washing tank for storing tableware, a washing nozzle arranged in the washing tank for jetting washing water to the tableware, a washing pump for pumping washing water to the washing nozzle, warming of washing water and the tableware And a drainage pump connected to the discharge side of the drainage pump, and a drainage hose connected to the discharge side of the drainage pump. Is a dishwasher composed of two layers made of an elastomer having high oil resistance and made of a thin resin and having a certain thickness on the outside.

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