JP2020130235A - Nozzle device for dish washer, and dish washer with the same - Google Patents

Abstract

To provide a nozzle device for a dish washer in which, for example, cleaning work is easy and handling is easy, and provide the dish washer.SOLUTION: A nozzle device for a dish washer comprises a first nozzle for injecting either one of washing water or rinsing water, and a second nozzle for injecting the other side. The first nozzle and the second nozzle are rotatably pivoted centering on a common rotating shaft. When either one of the first nozzle or the second nozzle rotates in a predetermined direction centering on the rotating shaft, a first engagement part provided in the first nozzle is engaged with a second engagement part provided in the second nozzle, and thereby either one of the other side of the first nozzle or the second nozzle is rotated. Also, the engagement between the first engagement part and the second engagement part is released when either one of the first nozzle or the second nozzle is rotated in an opposite direction with the predetermined direction centering on the rotating shaft, or when either one of the other side of the first nozzle or the second nozzle is rotated in the predetermined direction centering on the rotating shaft.SELECTED DRAWING: Figure 1

Description

The present invention relates to a dishwasher nozzle device including a washing nozzle and a rinsing nozzle, and a dishwasher equipped with the dishwasher nozzle device.

Patent Document 1 discloses an example of a dishwasher nozzle and a dishwasher including a washing nozzle and a rinsing nozzle.
The cleaning nozzle is formed as a flat box-shaped member long in one direction, and its central axis is watertightly fitted into a nozzle body protruding toward the inside of the chamber for cleaning and rinsing. The outer wall of the cleaning nozzle is formed with a recess along the length direction of the rinse nozzle, and the rinse nozzle is housed in the recess.

The rinsing nozzle is fixed by being inserted into a rinsing water supply port into which the rinsing nozzle is inserted and then screwed with a fixing screw, which is provided on the peripheral surface of the nozzle body.

As is clear, in the dishwasher nozzle of Patent Document 1, the rinsing nozzle and the washing nozzle are integrated through recesses and the like, and they are always at a predetermined angle with each other not only when rotating but also when not in use. It is fixed in the state of maintaining.

Japanese Patent No. 6142414

Needless to say, the inside of the dishwasher must always be kept clean. For this reason, after use, it is necessary to avoid the rinsing nozzle and the washing nozzle to clean the inside of the refrigerator, and for example, take out the leftover basket that closes the drainage port provided at the bottom of the refrigerator and discard the leftovers. It becomes.

However, in the configuration of Patent Document 1, the rinsing nozzle and the cleaning nozzle are integrated through recesses and the like, and are always integrated with each other not only when rotating but also when not in use and, more specifically, when cleaning the inside of the refrigerator. Since it is fixed in a state of maintaining a predetermined angle, there is a problem that the cleaning work is remarkably hindered and the handling is complicated, for example, the removal of the leftover basket is hindered.

The present invention has been made to solve such problems in the prior art, and for example, to provide a dishwasher nozzle device and a dishwasher that are easy to clean and easy to handle. With the goal.

In order to solve the above problems, the nozzle device for a dishwasher according to one aspect of the present invention has a first nozzle that injects either washing water or rinsing water, and a first nozzle that injects either washing water or rinsing water. The first nozzle and the second nozzle are rotatably supported around a common rotation axis, and either the first nozzle or the second nozzle is rotatably supported. When rotating in a predetermined direction around the rotation axis, the first engaging portion provided on the first nozzle and the second engaging portion provided on the second nozzle engage with each other to engage with the first nozzle. Alternatively, when either one of the second nozzles is rotated and either the first nozzle or the second nozzle is rotated about the rotation axis in a direction opposite to the predetermined direction. Alternatively, when either the first nozzle or the other of the second nozzles is rotated in the predetermined direction about the rotation axis, the relationship between the first engaging portion and the second engaging portion is engaged. It is characterized in that the case is released.
The present invention also features a dishwasher provided with such a dishwasher nozzle device.

In the dishwasher nozzle device or the like according to the above aspect, the first nozzle and the second nozzle are arranged so as to face each other in the axial direction of the rotating shaft at least a part around the axis of the rotating shaft. The 1 engaging portion may be provided on the side of the first nozzle facing the second nozzle.

Further, in the dishwasher nozzle device or the like according to the above aspect, the first engaging portion may be provided on a surface facing the second nozzle, which is formed around the axis of the rotating shaft.

Further, in the dishwasher nozzle device or the like of the above aspect, the first engaging portion may be a protrusion protruding toward the facing side on the surface.

Further, in the dishwasher nozzle device or the like according to the above aspect, the second engaging portion may be the outer wall of the second nozzle along the axial direction.

Further, in the dishwasher nozzle device or the like according to the above aspect, the first nozzle and the second nozzle may be in sliding contact with each other on the facing side.

Furthermore, in the dishwasher nozzle device or the like of the above aspect, the first nozzle and the second nozzle are aligned with the axial direction when the first engaging portion and the second engaging portion are engaged. A state in which the first nozzle and the second nozzle overlap each other in the axial direction when the first nozzle and the second nozzle are disengaged from each other at a maximum of approximately 90 degrees on orthogonal planes. It may be something that can be said.

Further, in the dishwasher nozzle device or the like according to the above aspect, the first nozzle can be rotated by utilizing the water pressure generated when either the washing water or the rinsing water is injected, and the second nozzle can be rotated. May be one that can be rotated by utilizing the water pressure generated when either the washing water or the rinsing water is sprayed.

Further, in the nozzle device for a dishwasher or the like according to the above aspect, the first nozzle injects washing water, the second nozzle injects the rinsing water, and the second nozzle with respect to the first nozzle. , The washing water and the rinsing water may be positioned on the injection side.

According to the present invention, for example, a dishwasher nozzle device and a dishwasher that are easy to clean and easy to handle are provided.

It is a perspective view which shows the nozzle device for a dishwasher by one Embodiment of this invention together with the peripheral member. It is a sectional view at the center of the line AA of FIG. It is an exploded perspective view of some parts included in the nozzle device for a dishwasher. It is a perspective view which shows the state when either one of a washing nozzle and a rinsing nozzle is rotated in the opposite direction. It is a figure which explains more concretely the handling of a cleaning nozzle and a rinsing nozzle at the time of a cleaning operation. It is a figure which explains more concretely the handling of a cleaning nozzle and a rinsing nozzle at the time of a cleaning operation. It is a figure which explains more concretely the handling of a cleaning nozzle and a rinsing nozzle at the time of a cleaning operation.

Hereinafter, one preferred embodiment of the present invention will be described with reference to the accompanying drawings. For convenience of explanation, only suitable embodiments are shown, but of course, this is not intended to limit the present invention.

FIG. 1 is a perspective view showing a dishwasher nozzle device according to an embodiment of the present invention, particularly a dishwasher nozzle device arranged under a dishwasher (not shown) together with peripheral members thereof. 2 is a central sectional view taken along line AA of FIG. 1, and FIG. 3 is an exploded perspective view of some parts included in the nozzle device for a dishwasher. Although not particularly shown, it is assumed that the dishwasher nozzle device shown in FIG. 1 and the like is also provided on the upper side of the dishwasher. Hereinafter, the structure of the dishwasher nozzle device arranged mainly on the lower side will be described, but the dishwasher nozzle device arranged on the upper side may be considered in the same manner. However, it is not always necessary to provide the dishwasher nozzle device on both the upper side and the lower side, and it may be provided on either side.

The dishwasher nozzle device 1 is provided with a washing nozzle 2 that injects washing water into a dishwasher (not shown) equipped with the dishwasher nozzle device 1 and rinse water into the washing machine. The rinse nozzle 3 for injecting is included. Further, for example, the main body 4 capable of accumulating the washing water jetted from the washing nozzle 2 and the rinsing water jetted from the rinsing nozzle 3, and the washing nozzle 2 and the rinsing nozzle fixed inside the refrigerator of the main body 4. It may include a pipe shaft 6 that rotatably supports the 3 and a fastener 5 that is attached to a protrusion 62 of the pipe shaft 6 to fix the cleaning nozzle 2 and the rinse nozzle 3.

The cleaning nozzle 2 and the rinsing nozzle 3 are rotatably supported around a common rotation shaft by using a piping shaft 6 or the like. In the present embodiment, the rinsing nozzle 3 is positioned with respect to the cleaning nozzle 2 on the injection side of the cleaning water and the rinsing water, in other words, the central side of the chamber for cleaning and rinsing. Since the cleaning nozzle 2 is generally larger than the rinsing nozzle 3, by arranging it in this way, it is possible to improve the arrangement stability of the nozzles, especially when the cleaning nozzle 2 and the rinsing nozzle 3 are installed in an overlapping state. it can. However, on the contrary, of course, the cleaning nozzle 2 may be positioned on the injection side of the cleaning water and the rinsing water with respect to the rinsing nozzle 3. The washing nozzle 2 and the rinsing nozzle 3 are provided to be detachably attached to and detachable from a dishwasher (not shown) by using a detachable fastener 5. Therefore, at the time of cleaning work, the cleaning nozzle 2 and the rinsing nozzle 3 can be taken out of the refrigerator and cleaned.

The main body 4 includes a substantially arm-shaped upper main body portion 41 and a lower main body portion 42. The upper main body 41 and the lower main body 42 are fixed in a state of being combined with each other in the axial direction “γ” of the piping shaft 6, and form a container-shaped water storage chamber 43 inside. The water storage chamber 43 incorporates a container-shaped water storage chamber 44 capable of storing wash water and rinsing water. The wash water is supplied to the livestock chamber 43 through the water supply port 43a provided in the lower main body 42. On the other hand, water is supplied to the water storage chamber of the upper dishwasher nozzle device through the branch port 43b. After that, the cleaning water is supplied to the cleaning nozzle 2 through the annular water supply hole 41b formed on the top surface of the upper main body 41.

The water storage chamber 44 extends in the vertical direction in a state where the upper main body 41 is inserted from the vicinity of one middle of the lower main body 42 to reach the rinsing nozzle 3. Rinse water is supplied to the water storage chamber 44 through a water supply port 44a provided so as to be able to communicate with the outside of the main body 4 while penetrating the container space of the water storage chamber 43. On the other hand, water is supplied to the water storage chamber of the upper dishwasher nozzle device through the branch port 44b. Inside the livestock chamber 43, the livestock chamber 44 is completely separated from the rinse water, so that the wash water and the rinse water do not mix with each other. The water storage chamber 44 is in contact with the pipe shaft 6 at the upper part thereof, and the supplied rinse water is supplied to the rinse nozzle 3 through the through hole 61 provided at the upper part of the pipe shaft 6.

The cleaning nozzle 2 has a flat shape as a whole, and includes a base portion 21 having a substantially annular shape in a plan view, and two length portions 22 extending from the side portion of the base portion 21 to the free end side in the left-right direction. The base portion 21 and the length portion 22 communicate with each other and with the water supply hole 41b of the main body 41, and are formed as a container having an internal space capable of storing water.

A through hole 21a through which the piping shaft 6 is passed is provided at the center of the base portion 21. The base portion 21 is formed in a circumferential shape around the axis of the through hole 21a.
The top surface 21b of the base portion 21 forms a relatively large surface, and forms a sliding contact surface 21b in which the rinsing nozzle 3 is arranged in a sliding contact state. By bringing the cleaning nozzle 2 and the rinsing nozzle 3 into sliding contact with each other, the device can be miniaturized in the axial direction “α”. The rinsing nozzle 3 is arranged so as to face each other in the axial direction "γ" at at least a part of the sliding contact surface 21b, and rotates on the sliding contact surface 21b in a sliding contact state. The sliding contact surface 21b is provided with a first engaging portion in order to rotate the rinsing nozzle 3 together with the cleaning nozzle 2. As shown in the present embodiment, the first engaging portion may be formed as, for example, a protrusion 21A protruding in the “γ1” direction toward the side facing the rinse nozzle 3. As shown in this embodiment, two protrusions 21A may be arranged at opposite positions with the through hole 21a interposed therebetween. However, two are not always required, and only one can be used.

The bottom surface 22b of the base 21 faces the upper main body 41 of the main body 4. An annular recess 24 is provided on the bottom surface 22b, and the recess 24 is an annular convex located on the outer shell of the convex portion 41a provided on the upper main body 41 of the main body 4, and more specifically, the water supply hole 41b. It is meshed with the portion 41a. The cleaning nozzle 2 is rotatably supported around the piping shaft 6 in the upper part of the main body 4 in a state where the concave portion 24 and the convex portion 41a are meshed with each other.

The length portion 22 extends along the length direction (for example, corresponding to the “β” direction in FIG. 1) toward the free end side, and corresponds to the width direction (for example, the “α” direction in FIG. 1). ) Has relatively large dimensions. The length portion 22 has a groove portion 22a extending from a position slightly separated from the base portion 21 in the length direction to its free end. The groove portion 22a is provided with a plurality of injection ports 23 that are separated from each other in the length direction "β". The wash water is ejected into the refrigerator through each of these injection ports 23. The cleaning nozzle 2 may be configured to rotate by utilizing the water pressure generated during this injection. By rotating the nozzle using water pressure, the device can be simplified by omitting the motor and the like.

The rinsing nozzle 3 has a thin rod shape as a whole, and includes a base portion 31 having a substantially annular shape in a plan view, and two length portions 32 extending from the side portion of the base portion 31 to the free end side in the left-right direction. The base portion 31 and the length portion 32 communicate with each other and also communicate with the through hole 61 of the piping shaft 6, and are formed as a container having an internal space capable of storing water.

A through hole 31a through which the piping shaft 6 is passed is provided at the center of the base portion 31. The base portion 31 is formed in a circumferential shape around the axis of the through hole 31a.
The top surface of the base 31 forms a relatively small surface, a part of which is formed as a stepped portion 31b to which the fastener 5 is attached. Since the cleaning nozzle 2 and the rinsing nozzle 3 are rotated at the same time during easy cleaning and rinsing, the rinsing nozzle 3 has a second engagement corresponding to the protrusion 21A as the first engaging portion formed in the cleaning nozzle 2. A part is provided. For example, the outer wall 32A of the length portion 32 along the axial direction “γ” may be used as the second engaging portion. By utilizing the outer wall 32A of the length portion 32, the second engaging portion can be provided without preparing a special member, and therefore the device configuration can be simplified.

The bottom surface 31c of the base portion 31 faces the sliding contact surface 21b formed on the base portion 21 of the cleaning nozzle 2. An annular protrusion 34 protruding downward is formed on the bottom surface 31c, and the protrusion 34 is rinsed in a state of being meshed with the annular step portion 21c provided in the through hole 21a of the sliding contact surface 21b. The nozzle 3 is rotatably supported around the piping shaft 6 on the sliding contact surface 21b of the base 21 of the cleaning nozzle 2.

The length portion 32 extends along the length direction (for example, corresponding to the “α” direction in FIG. 1) toward the free end side, and corresponds to the width direction (for example, corresponds to the “β” direction in FIG. 1). ) Has relatively small dimensions. The length portion 32 has a groove portion 32a extending from a position slightly separated from the base portion 31 in the length direction to its free end. The groove portion 32a is provided with a plurality of injection ports 33 that are separated from each other in the length direction “α”. The rinse water is ejected into the refrigerator through each of these injection ports 33. The rinsing nozzle 3 may be configured to rotate by utilizing the water pressure generated during this injection. By rotating the nozzle using water pressure, the device can be simplified by omitting the motor and the like.

When the cleaning nozzle 2 rotates in the "θ1" direction, for example, by utilizing the hydraulic pressure of the cleaning water ejected from the injection port 23 in the "θ2" direction, the cleaning nozzle 2 as the first engaging portion One surface 21A-1 of the protrusion 21A and one surface 32A-1 of the outer wall 32A of the rinsing nozzle 3 as the second engaging portion are engaged by collision as shown in FIG. The cleaning nozzle 2 rotates the rinsing nozzle 3. At the time of this rotation, as shown in FIG. 1, it is preferable that the cleaning nozzle 2 and the rinsing nozzle 3 form approximately 90 degrees with each other on the "α-β" plane orthogonal to the axial direction "γ". By setting such an angle, the cleaning water from the cleaning nozzle 2 can be sprayed into the refrigerator without being disturbed by the rinsing nozzle 3.
On the other hand, when the rinsing nozzle 3 rotates in the "θ1" direction, for example, by utilizing the water pressure of the rinsing water ejected from the injection port 33 in the "θ2" direction, the cleaning as the first engaging portion is performed. The other surface 21A-2 of the protrusion 21A of the nozzle 2 and the other surface 32A-2 of the outer wall 32A of the rinse nozzle 3 as the second engaging portion are engaged by collision, and more specifically, On the "α-β" plane orthogonal to the axial direction "γ", the cleaning nozzle 2 and the rinsing nozzle 3 pass from, for example, a state of approximately 90 degrees shown in FIG. 1 to a state of 0 degrees overlapping with each other. Finally, the temperature is about 30 degrees, and the rinsing nozzle 3 rotates the cleaning nozzle 2. In this case, the cleaning nozzle 2 and the rinsing nozzle 3 form approximately 30 degrees with each other on the "α-β" plane orthogonal to the axial direction "γ", but the rinsing nozzle 3 is more than the cleaning nozzle 2. Since it is arranged inside the refrigerator, the rinse water from the rinse nozzle 3 can be sprayed into the refrigerator without being disturbed by the cleaning nozzle 2 even at such an angle.

In FIG. 4, when either one of the cleaning nozzle 2 or the rinsing nozzle 3 described above is rotated in the direction “θ2” opposite to the predetermined direction “θ1”, or when the cleaning nozzle 2 or the rinsing nozzle 3 described above is used. The state when either one is rotated in the predetermined direction “θ1” is shown in the same perspective view as in FIG. At this time, the collision state between the protrusion 21A as the first engaging portion of the cleaning nozzle 2 and the outer wall 32A as the second engaging portion of the rinsing nozzle 3 is eliminated, in other words, the engagement is released and cleaning is performed. The nozzle 2 and the rinsing nozzle 3 are in a state of being approximately 90 degrees or the like on the “α-β” plane orthogonal to the axial direction “γ”, or are in a state of being overlapped with each other, for example. The angle that can be rotated in the direction of disengagement is determined by the position and number of the protrusions 21A, and is the maximum when two opposing protrusions 21A are provided as in the present embodiment. It becomes about 90 degrees. However, for example, when only one protrusion 21A is used, it can be rotated by more than 90 degrees and further by about 150 degrees at the maximum. In any case, by such rotation, the cleaning nozzle 2 and the rinsing nozzle 3 can be placed so as to overlap each other in the axial direction "γ" and arranged substantially linearly with respect to the rotation axis. At this time, the cleaning nozzle 2 and the rinsing nozzle 3 are in a state in which their occupied area is the smallest. Therefore, by setting such a state, cleaning work and the like can be performed more easily.

As described above, according to the dishwasher nozzle device 1, the washing nozzle 2 and the rinsing nozzle 3 can be rotated at the same time during cleaning and rinsing, but at the same time, for example, during cleaning work, Since one can be freely rotated with respect to the other, handling can be facilitated. The handling during the cleaning work will be described more specifically with reference to FIGS. 5 to 7. These figures are perspective views showing the washing nozzle 2 and the rinsing nozzle 3 together with the bottom receiving portion 7 and the like provided in the dishwasher chamber. The bottom receiving portion 7 can store the washing water, and the washing water and the rinse water used in the refrigerator can be finally discharged through the drain pipe 71 connected to the bottom of the bottom receiving portion 7. it can.

In the bottom receiving portion 7, a leftovers filter 8 for scooping leftovers and the like generated during dishwashing and a leftover basket 9 for collecting the leftovers are arranged. The leftover basket 9 can be arranged at a predetermined position of the bottom receiving portion 7 by using, for example, the notch 81 provided in the leftover filter 8.

At the time of cleaning work, it is necessary to remove these leftover filter 8 and leftover basket 9 from the inside of the refrigerator and discharge the leftovers and the like accumulated in them. When these are taken out, as shown in FIG. 5, if the cleaning nozzle 2 and the rinsing nozzle 3 are in the cleaning / rinsing position, in other words, if they are arranged at an angle of about 90 degrees or the like, the leftover filter 8 or the like The removal work is hindered and the cleaning work cannot be performed easily.

On the other hand, as shown in FIGS. 6 and 7, the cleaning nozzle 2 and the rinsing nozzle 3 are placed on top of each other in the axial direction “γ” so that the leftover dish filter 8 and the like can be easily taken out. Therefore, the dishwasher can be easily handled.

The present invention is not limited to the above-described embodiment, and can be appropriately modified and embodied without departing from the spirit of the invention.
For example, in the present embodiment, the protrusion and the outer wall are used as the first engagement portion and the second engagement portion, but of course, the protrusion and the outer wall are not limited, and for example, both protrusions. It may be a department. Further, in the present embodiment, the protrusion as the first engaging portion is provided on the cleaning nozzle, and the outer wall as the second engaging portion is provided on the rinsing nozzle. On the contrary, the engagement of the cleaning nozzle is provided. An outer wall may be used as the portion, and a protrusion may be provided as an engaging portion of the rinse nozzle. Further, in the present embodiment, the cleaning nozzle and the rinsing nozzle are in sliding contact with each other on the opposite side thereof, but it is not always necessary to slide them in contact with each other, and they may be separated from each other. However, the sliding contact has the advantages of downsizing of the device and simplification of the device.

1 Dishwasher nozzle device 2 Washing nozzle (1st nozzle)
3 Rinse nozzle (2nd nozzle)
4 Main body 5 Fastener 6 Piping shaft 7 Inner bottom receiving part 8 Leftover filter 9 Residual material basket 21 Base 21a Through hole 21b Sliding contact surface 21A Protrusion 22 Length part 23 Injection port 31 Base 31a Through hole 31c Sliding contact surface 32 Length part 32A Outer side wall 33 Injection port 41 Upper main body 43 Water storage chamber 44 Water storage chamber

Claims (10)

A first nozzle that injects either wash water or rinse water,
Includes a second nozzle that ejects either wash water or rinse water.
The first nozzle and the second nozzle are rotatably supported around a common rotation axis.
When either the first nozzle or the second nozzle rotates in a predetermined direction about the rotation axis, the first engaging portion provided on the first nozzle and the second nozzle are provided. The second engaging portion engages to rotate either the first nozzle or the second nozzle.
When either one of the first nozzle or the second nozzle is rotated about the rotation axis in a direction opposite to the predetermined direction, or the first nozzle or the second nozzle A dishwasher characterized in that when either one of them is rotated about the rotation axis in the predetermined direction, the first engaging portion and the second engaging portion are disengaged. Nozzle device for. The first nozzle and the second nozzle are arranged so as to face each other in the axial direction of the rotation axis at least a part around the axis of the rotation axis.
The dishwasher nozzle device according to claim 1, wherein the first engaging portion is provided on the side of the first nozzle facing the second nozzle. The nozzle device for a dishwasher according to claim 2, wherein the first engaging portion is provided on a surface facing the second nozzle, which is formed around the axis of the rotation shaft. The nozzle device for a dishwasher according to claim 3, wherein the first engaging portion is a protrusion protruding toward the facing side on the surface. The nozzle device for a dishwasher according to claim 4, wherein the second engaging portion is an outer wall of the second nozzle along the axial direction. The nozzle device for a dishwasher according to any one of claims 2 to 5, wherein the first nozzle and the second nozzle are in sliding contact with each other on the facing side. When the first engaging portion and the second engaging portion are engaged, the first nozzle and the second nozzle form a maximum of approximately 90 degrees with each other on a plane orthogonal to the axial direction.
The invention according to any one of claims 1 to 6, wherein when the first nozzle and the second nozzle are disengaged, the first nozzle and the second nozzle can be in a state of overlapping each other in the axial direction. Nozzle device for dishwasher. The first nozzle can be rotated by utilizing the water pressure generated when injecting either the washing water or the rinsing water, and the second nozzle injects either the washing water or the rinsing water. The nozzle device for a dishwasher according to any one of claims 1 to 7, which can be rotated by utilizing the water pressure generated at the time. The first nozzle injects wash water, the second nozzle injects the rinse water, and the second nozzle is positioned on the injection side of the wash water and the rinse water with respect to the first nozzle. The nozzle device for a dishwasher according to any one of claims 1 to 8. A dishwasher provided with the nozzle device for the dishwasher according to any one of claims 1 to 9.

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