JP2003310523A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing piping structure for a dishwasher in which strengths of a washing tub and a washer main body are improved. <P>SOLUTION: A rear panel 20 forming a washing tub 3 has a recessed portion 22 formed on the side of the inner surface of the washing tub over a vertical full length of a top face from the bottom face of the washing tub 3 by bending. Besides, the recessed portion 22 is closed by a plate-like sheet metal 24 except a part near the top face, and a washing water path 26 having a rectangular cross section is formed from the recessed portion 22 and the sheet metal 24. Screw holes 28 are opened at a prescribed interval at both the terminal edges of the sheet metal 24, the sheet metal 24 is fixed to the rear panel 20 with screws through the screw holes 28, and vertical washing piping is formed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly to a cleaning pipe structure for supplying cleaning water to a cleaning nozzle.

[0002]

2. Description of the Related Art In a conventional dishwasher, as shown in FIGS. 6 and 7, a washing tank 3 is defined in a watertight state above the inside of a washing machine body 2 in the dishwasher 1, and the washing is performed. A jetting assembly consisting of a washing nozzle 4 and a rinsing nozzle 5 is correspondingly and rotatably disposed near the upper and lower portions of the tank 3, and jetting holes (not shown) of the nozzles 4 and 5 are provided.
Is directed to the tableware 12 stored in the cleaning tank 3.

As shown in FIG. 7, a rear panel 6 which serves as a rear surface of the cleaning tank 3 and an exterior panel is disposed at the back of the main body 2 of the washing machine, and rear frames 7 are provided at both left and right ends of the rear panel 6, respectively. 7 are provided. Further, on the cleaning tank 3 side of the rear panel 6, a pair of left and right guide rails 8, 8 are installed upright in parallel at a required distance. A box-shaped open / close door 9 shown in FIG. 6 is provided so as to be able to move up and down along both guide rails 8 and 8, and the cleaning tank 3 is defined by closing the open / close door 9. . A cleaning water tank 10 for storing cleaning water is arranged below the cleaning tank 3, and at the time of cleaning, by a circulation pump (not shown) arranged in a machine room formed below the inside of the main body 2 of the cleaning machine, The washing water is supplied to the washing nozzle 4 through the washing pipe 11, and is sprayed from the washing nozzle 4 to the tableware 12 stored together with the rack in the washing tank 3 for appropriate washing. As shown in FIG. 6, the opening / closing door 9 is provided with a handle 13 having a substantially “U” shape. By operating the handle 13 up and down, the opening / closing associated with the raising / lowering of the opening / closing door 9 can be performed. Done.

Further, inside the washing machine, as shown in FIG. 8, a bracket 14 is welded and fixed to an upper portion of a rear panel 6, and a vertical portion 16 of the washing pipe 11 is provided on an upper surface of the bracket 14 via a pipe band 15. Are fixed with screws. That is, by securely fixing the cleaning pipe 11 to the rear panel 6, the displacement and vibration of the cleaning pipe 11 are prevented.

[0005]

However, in the conventional dishwasher 1 described above, the box-shaped opening / closing door 9 is supported by the rear panel 6 and the left and right rear frames 7, 7 so that it can be moved up and down. The rear panel 6 needs to have a suitable strength, and the strength of the cleaning tank 3 itself is also required, so that the rear panel 6 has a sufficient thickness, resulting in an increase in materials and weight.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention has been proposed in order to suitably solve the above-mentioned problems inherent in the conventional dishwasher, and to improve the strength of the washing tank and the washing machine main body. An object is to provide a dishwasher that can be used.

[0007]

In order to overcome the above problems and achieve the intended purpose, the dishwasher according to the present invention comprises:
A cleaning tank for storing dishes and the like, a cleaning nozzle attached to the upper part of the cleaning tank, and a cleaning water tank located below the cleaning tank for storing cleaning water are provided, and cleaning water from the cleaning water tank is provided. In the dishwasher configured to pressure-feed to the cleaning nozzle via a cleaning pipe, a part of the cleaning pipe is formed by the cleaning tank.

Further, the present invention is characterized in that the cleaning pipe is formed so as to be flush with the inner surface of the cleaning tank.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a dishwasher according to the present invention will be described with reference to the accompanying drawings with reference to an embodiment embodying the same. The same members as those already described with reference to FIGS. 6 to 8 are designated by the same reference numerals and the description thereof will be omitted.

First, the dishwasher according to the first embodiment is
This will be described with reference to FIGS. 1 and 2. In the dishwasher shown in FIGS. 1 and 2, the rear panel 20 that defines the cleaning tank 3 has a recess 22 on the inner surface of the cleaning tank 3 formed by bending over the entire length in the vertical direction from the bottom surface of the cleaning tank 3 to the top surface. Is formed. The recess 22 is closed by a flat sheet metal 24 except for a portion near the top surface, and the recess 22 and the sheet metal 24 form a cleaning water channel 26 having a rectangular cross section. Sheet metal 2
4 has screw holes 28 formed at both ends at predetermined intervals, and is screwed and fixed to the rear panel 20 through the screw holes 28 to form a vertical cleaning pipe. Furthermore, washing tank 3
A hollow square pipe 30 that is connected to the upper washing nozzle 4 and extends to the rear panel 20 side to form a horizontal washing pipe is provided in the upper part of the square pipe 30, and the lower end portion of the square pipe 30 on the rear panel 20 side is Depth dimension of recess 22 and sheet metal 2
A notch 32 having a depth that is the same as the sum of the thickness dimensions of 4 is formed. The opening area of the bottom surface of the cutout 32 is substantially the same as the cross-sectional area of the cleaning water channel 26. When the square pipe 30 is inserted into the recess 22, the cutout 3 is formed.
The square pipe 30 is positioned at a position where the two corners of the two come into contact with the upper end surface of the metal plate 24. At this time, the depth dimension of the notch 32 is a dimension that combines the depth dimension of the recessed portion 22 and the thickness dimension of the sheet metal 24, so that the upper surface of the cleaning water channel 26 is closed by the square pipe 30 without a gap. here,
The corners of the notch 32 and the upper end of the sheet metal 24 are integrally formed by welding, and thus a circulation path of cleaning water from the circulation pump to the upper cleaning nozzle 4 is formed.

When the above-mentioned structure is adopted, the contact portion between the rear panel 20 and the square pipe 30 and the rear panel 20.
A sealing method such as welding is not used for the contact portion between the sheet metal 24 and the sheet metal 24. Since the square pipe 30 is configured to be inserted into the recessed portion 22, it has good adhesiveness, and cleaning water hardly leaks. Since the sheet metal 24 is also firmly fixed by screws, the adhesion is also good here. Even if some cleaning water leaks, there is no problem because it is in the cleaning tank 3. With this configuration, when the screws of the sheet metal 24 are removed, the sheet metal 24
At the same time, since the square pipe 30 can also be removed, the cleaning water channel 26 and the square pipe 30 can be easily cleaned, and clogging of the circulation path of the cleaning water due to remaining residue or the like can be prevented. However, when the cleaning water channel 26 has a sufficient cross-sectional area and cleaning is not necessary, it may be attached by welding.

Next, a cleaning pipe mounting structure of the dishwasher according to the second embodiment will be described with reference to FIGS. 3 and 4.
As shown in FIG. 3, a convex portion 36 having the same shape as the cross section of the concave portion 22 is integrally provided at the upper end portion of the sheet metal 34, and the convex portion 36 is bent at a right angle to the concave portion 22 side of the rear panel 20 to wash the water channel 26. Occlude the upper surface of. Further, a rectangular opening 38 is provided on the front surface of the sheet metal 34, and the square pipe 4 is provided in the opening 38.
A circulation path of washing water is formed by welding and connecting 0.
Further, as shown in FIG. 4, a round pipe 42 may be welded to the circular opening 38 instead of the square pipe 40.

Next, a dishwasher according to the third embodiment will be described with reference to FIG. As shown in FIG. 5, a horizontal cleaning pipe is provided, and a first pipe member 43 having an open upper surface and having a U-shaped cross section is provided. Furthermore, the first piping member 4
3 is provided with a second piping member 44 set to a size that fits with the second piping member 44. The second piping member 44 is formed in a U-shaped cross-section with its lower surface opened, and its depth dimension is equal to the depth dimension of the recess 22. It is set longer than the first piping member 43. Therefore, the first piping member 43 is welded to the upper end of the sheet metal 34, and the upper surface of the first piping member 43 and the upper surface of the cleaning water passage 26 are closed by the second piping member 44 to form a circulation path of cleaning water. is doing. At this time, the second piping member 44 is fixed to the first piping member 43 by welding or screwing,
It is attached in a watertight manner with a sealing material. In addition, the first piping member 43 can be integrally formed by bending the upper portion of the flat metal plate 34.

Since a part of the cleaning pipe is formed by the cleaning tank 3 as described above, the required cross-sectional area of the cleaning water passage 26 can be secured, and the space of the piping portion can be saved and the number of parts can be reduced. Further, the rear panel 20 is reinforced by the cleaning pipe, and the strength of the main body of the dishwasher is improved. Further, since the washing water channel 26 is set to have a rectangular cross section, the reinforcing effect can be further improved and the depth dimension can be made smaller than that of the conventional round pipe. Further, by improving the strength of the main body of the dishwasher, the structural members such as the rear panel can be made thin, which contributes to weight reduction, resource saving, and cost reduction of the product.

The present invention is not limited to the contents of the above-described embodiments, and various improvements and modifications can be made without departing from the gist of the present invention. For example, although the washing water channel 26 is formed in a rectangular cross section,
By making the shape, the washing water channel 26 may be configured to have a semicircular cross section. Alternatively, the flush water channel 26 may be formed by attaching a channel member having a U-shaped cross section to the rear surface of the rear panel 20 which is flat. In this case, the rear panel 20 may be provided with an opening through which the square pipe 30 is inserted, and the washing water channel 26 may be formed by the channel member and the rear surface of the rear panel 20.

[0016]

As described above, according to the dishwasher according to the first aspect of the present invention, since a part of the washing pipe is formed by the washing tank, the strength of the washing machine main body can be improved. Therefore, the number of parts can be reduced, and at the same time, the space of the piping section can be saved. Further, according to the dishwasher according to the second aspect, since the inner surface of the cleaning tank and the cleaning pipe are formed to be substantially flush with each other, dust and the like are less likely to collect,
Also, since cleaning is easy, the inside of the cleaning tank can be kept clean.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view showing a cleaning pipe structure according to an embodiment of the present invention with a part thereof cut away.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged perspective view showing a cleaning pipe structure according to a second embodiment using a square pipe.

FIG. 4 is an enlarged perspective view showing a cleaning pipe structure according to a second embodiment using a round pipe.

FIG. 5 is an enlarged perspective view showing a cleaning pipe structure according to a third embodiment.

FIG. 6 is a perspective view of the dishwasher with the opening / closing door open.

FIG. 7 is a perspective view showing a conventional dishwasher with an opening / closing door removed.

FIG. 8 is an enlarged perspective view showing an outline of a cleaning pipe structure in a conventional dishwasher.

[Explanation of symbols]

2 washing machine body 3 cleaning tank 6, 20 rear panel 22 recess 24, 34 sheet metal 26 Washing channel 30, 40 square pipe 32 cutout 36 convex 38 openings 43 First piping member 43 44 Second piping member 44

Claims (2)

[Claims] 1. A washing water tank comprising: a washing tank for storing dishes and the like; a washing nozzle attached to an upper portion of the washing tank; and a washing water tank located below the washing tank for storing washing water. A dishwasher in which the washing water from 1 is pressure-fed to the washing nozzle via a washing pipe, wherein a part of the washing pipe is formed by the washing tank. 2. The dishwasher according to claim 1, wherein the cleaning pipe is formed so as to be flush with the inner surface of the cleaning tank.