JPH063265U - Dishwasher - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the lifting of lightweight tableware by washing water without reducing the cleaning effect on the tableware. [Structure] A water supply pipe 25 for cleaning water to a second cleaning nozzle 23 arranged above is newly added, and a water amount adjusting valve 26 is provided in the water supply pipe 25, and the pipe is arranged downward at the start of cleaning. 1
The jetting amount and pressure of the washing water from the washing nozzle 21 are reduced by the control valve 26, and thereafter the jetting amount and the pressure of the washing water from the nozzle 21 are increased.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dishwasher.

[0002]

[Prior art]

 As shown in Japanese Utility Model Laid-Open No. 1-99353 as a type of dishwasher, a first cleaning connected to a first water supply pipe which is disposed below the cleaning chamber and is supplied with cleaning water. A nozzle and a second cleaning nozzle, which is arranged above the cleaning chamber and is connected to a second water supply pipe branching from the first water supply pipe, are provided, and the second cleaning nozzle is arranged at an intermediate position between these two cleaning nozzles. There is a dishwasher of the type in which the tableware is washed with washing water that is jetted upward from the first washing nozzle and washing water that is jetted downward from the second washing nozzle.

FIG. 3 schematically shows a main part of the dishwasher of this type. In the dishwasher 10 shown in FIG. The first cleaning nozzle 11 is connected to the first water supply pipe 12, and the second cleaning nozzle 13 disposed above in the cleaning chamber A is the second water supply pipe 14 branched from the first water supply pipe 12. Is connected to the cleaning nozzles 11 and 13 and is configured to clean each tableware housed in the rack B arranged at an intermediate position between the positions where the both cleaning nozzles 11 and 13 are arranged.

[0004]

[Problems to be solved by the device]

 By the way, in this type of dishwasher, the washing water spouted from each washing nozzle is set to a predetermined amount and a predetermined pressure, but at the start of washing, the washing water spouts from the lower first washing nozzle. Is faster than the spout from the upper second washing nozzle, the lightweight tableware on the rack is lifted by the pressure of the wash water spouted from below and, in severe cases, from the rack. There is a sled that pops out. Therefore, the object of the present invention is to address such a problem.

[0005]

[Means for Solving the Problems]

 The present invention is directed to a first cleaning nozzle disposed below a cleaning chamber and connected to a first water supply pipe to which cleaning water is supplied, and a first cleaning nozzle disposed above the cleaning chamber. A second cleaning nozzle connected to a second water supply pipe branching from the water supply pipe is provided, and dishes disposed at an intermediate position between these two cleaning nozzles are ejected upward from the first cleaning nozzle. In a dishwasher for washing with washing water and washing water jetted downward from the second washing nozzle, a third water supply pipe is connected to the first water supply pipe and the third water supply pipe is connected. Is connected to the second cleaning nozzle, and a water amount adjusting valve is provided in the third water supply pipe.

[0006]

[Operation and effect of the device]

 In the dishwasher configured as described above, the washing water is supplied to the lower first washing nozzle through the first water supply pipe, and the upper second washing nozzle is supplied with the second water supply pipe and the third water supply pipe. It is supplied through the water supply pipe. Therefore, for example, when the water amount control valve is fully opened, the supply amount and supply pressure of the cleaning water to the first cleaning nozzle can be made lower than the supply amount and supply pressure of the cleaning water to the second cleaning nozzle. By doing so, it is possible to prevent lifting of lightweight tableware due to the action of washing water ejected from the first washing nozzle at the start of washing.

In this state, if the cleaning effect is sufficient, this state may be continued, but since the jetting amount and jetting pressure of washing water from the first washing nozzle are lower than usual, After the washing water is ejected from the washing nozzle, the flow rate of the washing water passing through the third water supply pipe is reduced or made zero by the water amount adjusting valve. As a result, the supply amount and pressure of the cleaning water to the first cleaning nozzle are increased, and the ejection amount and the ejection pressure of the cleaning water from the first cleaning nozzle become normal. Therefore, in this state, the cleaning effect can be enhanced, and the reduction of the cleaning effect due to the provision of the third water supply pipe can be prevented.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows a dishwasher according to the present invention. The dishwasher 20 includes a first cleaning nozzle 21, a first water supply pipe 22, a second cleaning nozzle 23, a second water supply pipe 24, a third water supply pipe 25, and a water amount adjusting valve 26, and stores the cleaning water. A tank 27a, a circulation pump 27b, and a pair of upper and lower rinse nozzles 27c and 27d are provided. The first and second cleaning nozzles 21 and 23 and the first and second and third water supply pipes 22, 24 and 25 are the first and second cleaning nozzles of the present invention, and the first, second and third cleaning nozzles. It corresponds to the water supply pipe of.

The first cleaning nozzle 21 is disposed below the cleaning chamber A, and is connected to the first water supply pipe 22 having a nozzle holder 22a. The first water supply pipe 22 is connected to the circulation pump 27b. The nozzle holder 22a of the first water supply pipe 22 is branched into three directions, the first cleaning nozzle 21 is connected to the upper branch part, and the second water supply pipe 24 and the third water supply pipe 25 are connected to each side branch part. Are connected. The second and third water supply pipes 24 and 25 are connected to the second cleaning nozzle 23. Further, the water amount control valve 26 is interposed in the middle of the third water supply pipe 25. The rinse nozzles 27c and 27d are integrally supported with the cleaning nozzles 21 and 23, and are connected to a water supply pipe different from the water supply pipes 22, 24 and 25.

In the dishwasher 20 configured as described above, the cleaning water in the tank 27a is supplied to the first water supply pipe 22 by driving the circulation pump 27b, and the second and third water supply pipes are supplied. 24 and 25 are supplied. As a result, the cleaning water is supplied to the first cleaning nozzle 21 and the second cleaning nozzle 23, the cleaning water is ejected upward from the first cleaning nozzle 21, and the cleaning water is ejected downward from the second cleaning nozzle 23. To be done. As a result, the dishes on the rack B arranged between the cleaning nozzles 21 and 23 in the cleaning chamber A are cleaned.

By the way, in the dishwasher 20, the washing water is supplied to the second washing nozzle 23 through the second water supply pipe 24 and the third water supply pipe 25. Therefore, when the water amount control valve 26 is fully opened, the supply amount of the cleaning water to the first cleaning nozzle 21 is small and the pressure of the cleaning water is low. For this reason, it is possible to prevent lifting of lightweight tableware due to the action of the washing water ejected from the first washing nozzle 21 at the start of washing.

If the cleaning effect is sufficient in this state, this state may be continued, but since the jetting amount and jetting pressure of the washing water from the first washing nozzle 21 are lower than usual, After the cleaning water is ejected from the cleaning nozzle 23, the flow rate of the cleaning water passing through the third water supply pipe 25 is reduced or reduced to zero by the water amount control valve 26. As a result, the supply amount and pressure of the cleaning water to the first cleaning nozzle 21 increase, and the ejection amount and the ejection pressure of the cleaning water from the first cleaning nozzle 21 become normal. Therefore, in this state, the cleaning effect can be enhanced, and the reduction of the cleaning effect due to the provision of the third water supply pipe 25 can be prevented.

As described above, in the dishwasher 20, the amount of jetting water and the jetting pressure of the washing water from the first washing nozzle 21 are reduced at the start of washing, and after the washing water is jetted from the second washing nozzle 23. Can adjust the jetting amount and jetting pressure of the washing water from the first washing nozzle 21 to a set regular value or more. For this reason, it is particularly effective for cleaning when dishware such as light dishes and tableware that is difficult to wash such as deep cups are mixed, and when cleaning only non-lightweight dishes, the 3 It is possible to start washing with the supply of washing water from the water supply pipe 25 to the second washing nozzle 23 stopped, and it is possible to select an appropriate washing work according to the type of tableware to be washed. it can.

Further, in the dishwasher 20, the third water supply pipe 24 may be added to the existing dishwasher, so that the nozzle holders of the cleaning nozzles 21 and 23 other than the third water supply pipe 24 are changed. It does not require any major structural changes, and the dishwasher is rarely upsized.

FIG. 2 shows a part of a water supply pipe system in which the supply of cleaning water to the cleaning nozzles 21 and 23 in the cleaning machine 20 is improved. In the water supply pipe system, a guide portion 22b is provided on a nozzle holder 22a that constitutes a part of the first water supply pipe 22. The guide part 22b is provided in an inclined shape at the inlet of the outflow hole 22c on the first cleaning nozzle 21 side, and the flow of the cleaning water to the second water supply pipe 24 and the third water supply pipe 25 is caused by the action of the guide part 22b. It is considered to be smoother.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a dishwasher according to an embodiment of the present invention.

FIG. 2 is a partial vertical cross-sectional view of a water supply pipe section showing a modified example of the water supply pipe system in the same washing machine.

FIG. 3 is a schematic configuration diagram corresponding to FIG. 1 showing a conventional dishwasher.

[Explanation of symbols]

10, 20 ... Dishwasher 11, 21 ... 1st washing nozzle, 13, 23 ... 2nd washing nozzle, 12, 22 ... 1st water supply pipe, 22a ... Nozzle holder, 22c ... Guide part, 1
4, 24 ... 2nd water supply pipe, 25 ... 3rd water supply pipe, 26 ... Water quantity control valve.

Claims (1)

[Scope of utility model registration request] 1. A first cleaning nozzle connected to a first water supply pipe provided below the cleaning chamber and supplied with cleaning water,
Tableware provided with a second washing nozzle arranged above the washing chamber and connected to a second water supply pipe branching from the first water supply pipe, and arranged at an intermediate position between these two washing nozzles. A dishwasher for washing water with washing water jetted upward from the first washing nozzle and washing water jetted downward from the second washing nozzle, wherein a third water supply is provided to the first water supply pipe. A dishwasher characterized in that a pipe is connected, the third water supply pipe is connected to the second cleaning nozzle, and a water amount control valve is arranged in the third water supply pipe.