JP2009207795A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher improving washing efficiency, drying performance and operability of a dish rack by reducing wash water and rinse water remaining at a dish rack support part of a washing tub, and having high safety preventing the falling of the dish rack even if a large load is applied thereto. <P>SOLUTION: A washing tub sliding part 12 slidably supporting the dish rack 4 is formed of a washing tub sliding part sloping surface 12a which is inclined downward by a predetermined distance from the sidewalls of the washing tub upper portion 2b toward the inside, to reduce filth and rinse water remaining on the washing tub sliding part 12, thereby improving the washing efficiency, the drying performance and the operability of the dish rack. Furthermore, a washing tub sliding part rib 12b is functioned as a stopper for preventing the falling of the dish rack 4 so as to prevent the falling of the dish rack 4 due to the downward load, even if the washing sliding part 12 is the sloping face, thus providing a highly safe dishwater. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dishwasher that cleans tableware and the like, and more particularly to a support structure for a tableware basket.

  A conventional dishwasher of this type is configured as shown in FIGS. 6 to 9 (see, for example, Patent Document 1).

  Hereinafter, the configuration will be described. The dishwasher accommodates an object to be cleaned such as tableware 101 in the cleaning tank 102, and the front opening 103 provided in the cleaning tank 102 is closed by the door body 104, and then the cleaning pump 105 is operated to supply cleaning water. By spraying, the cleaning, rinsing and drying steps of the object to be cleaned are performed. The door body 104 is configured to pivot open and close to the front lower side of the front opening 103 to a position where the inner surface thereof is upward and substantially horizontal.

  A table basket 106 for setting an object to be cleaned is provided with a pair of left and right front sliding members 107 on the front side and a rear sliding member 108 on the rear side. The front sliding member 107 is provided in a pair of left and right sides on the side surface of the washing tub 102 in a state where the door body sliding portion 107a sliding in the front-rear direction on the inner surface of the opened door body 104 and the table basket 106 are housed in the washing tub 102. The convex portion 109 is configured by a convex portion holding portion 107b that sandwiches the convex portion 109 from above and below.

  Further, the rear sliding member 108 is configured to slide in the front-rear direction on the upper surface of the convex portion 109. In addition, the upper surface of the convex part 109 is a substantially horizontal surface so that the load of the tableware basket 106 which set the to-be-cleaned object can be hold | maintained. With the above configuration, the tableware basket 106 can be pulled out to the inner surface of the door body 104 when the tableware 101 is set.

  Other dishwashers have a tableware basket support configuration as shown in FIG. In this apparatus, the washing tank is composed of a washing tank lower part 110a and a washing tank upper part 110b, and a washing tank sliding part 112 for sliding the tableware basket 111 is provided in the washing tank lower part 110a. Other configurations are the same as those of the conventional dishwasher.

Another dishwasher has a tableware basket support structure as shown in FIG. This is composed of a washing tank lower part 113a made of resin and a washing tank upper part 113b made of sheet metal, and a washing tank sliding part 115 for sliding the tableware basket 114 is formed integrally with the washing tank upper part 113b. It is what. Other configurations are the same as those of the conventional dishwasher.
JP 2002-301006 A

  However, in the above conventional dishwasher, the washing water tends to stay on the upper surface of the convex portion 109, so that the filth washed away from the tableware 101 in the washing process remains on the upper surface of the convex portion 109, and the filth is re-applied to the tableware 101 in the rinsing step. It has the subject that it adheres or obstructs the sliding operativity at the time of putting in / out of the tableware basket 106. Moreover, since rinse water remains on the upper surface of the convex portion 109 after the rinsing process and energy is used to evaporate the residual water during the drying process, there is a problem that the drying finish of the tableware 101 is deteriorated.

The front sliding member 107 and the rear sliding member 108 are provided on the side surface of the tableware basket 106,
In addition, since only the upper and lower surfaces of the convex portion 109 are held, when the table basket 106 is subjected to a large downward force and is bent, each of the front sliding member 107 and the rear sliding member 108 is The pitch between the left and right members is reduced, and there is a problem that the protrusions 109 fall off.

  Further, in the conventional dishwasher having the tableware basket support structure as shown in FIG. 10 or FIG. 11, the washing tank sliding portions 112 and 115 have the same problem.

  The present invention solves the above-mentioned conventional problems, and improves the cleaning performance, drying performance and operability of the tableware basket by reducing the residual of cleaning water and rinsing water on the tableware basket support part of the cleaning tank, Another object of the present invention is to provide a highly safe dishwasher that does not easily fall off even when a large load is applied to the tableware basket.

  In order to solve the conventional problems, a dishwasher according to the present invention includes a dish basket for setting an object to be cleaned, a washing tub having an opening and storing the dish basket, and the dish basket from the opening. A pair of sliding portions that are slidably supported, and the pair of sliding portions are provided so as to protrude downward from the side wall of the cleaning tank toward the inner side of the cleaning tank and to be inclined downward from the inclined surface. By making the sliding part an inclined surface, the residue of filth and rinsing water is reduced, and the cleaning performance, drying performance, and operability of the tableware basket can be improved. In addition, since the rib provided by projecting upward on the inclined surface plays the role of preventing the tableware from falling off, it is possible to realize a highly safe dishwasher that will not drop out even if a large load is applied to the tableware. .

  ADVANTAGE OF THE INVENTION The dishwasher of this invention can provide the dishwasher which is excellent in washing | cleaning performance, drying performance, and the operativity of the dish basket, and is highly safe.

  According to a first aspect of the present invention, there is provided a tableware basket for setting a cleaning object, a cleaning tank having an opening and storing the tableware basket, and a pair of sliding portions for slidably supporting the tableware basket from the opening. The pair of sliding parts includes an inclined surface that is inclined downward from the cleaning tank side wall to the inside of the cleaning tank, and a rib that is provided so as to protrude upward at a lower portion of the inclined surface. By making the surface, the residue of filth and rinsing water is reduced, and it becomes possible to improve the cleaning performance, drying performance and operability of the tableware basket. Further, since the rib provided on the inclined surface serves as a stopper for preventing the tableware from falling off, it is possible to realize a highly safe dishwasher that does not drop out even when a large load is applied to the tableware.

  In the second invention, in particular, in the first invention, the sliding portion is provided with a region where at least one rib does not exist, and the residual water at the base of the rib also flows into the cleaning tank from a portion where the rib does not exist. This makes it possible to further reduce the residual dirt and rinse water on the inclined surface, thereby further improving the cleaning performance, the drying performance, and the operability of the tableware basket.

  In particular, the third invention is the first or second invention, further comprising a cleaning water storage part for storing cleaning water at a lower part of the cleaning tank, and the sliding part has a rib in a range located above the cleaning water storage part. This prevents the washing water and rinsing water from dripping from the sliding part to the washing tank water storage part. it can.

In a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the pair of sliding portions are provided on the opposite side walls of the washing tank, respectively, and the washing nozzle for injecting washing water to the article to be washed is The cleaning nozzle is provided in the cleaning tank below a pair of sliding portions, and the cleaning nozzle is configured to be present on the side wall side of the cleaning tank with respect to the outer frame of the tableware basket constantly or temporarily. At least one of the sliding parts has a shape having a notch for avoiding the washing water jet from the washing nozzle, and the washing water jet area can cover a wide flat surface of the tableware basket. A dishwasher with excellent performance can be realized.

  The fifth aspect of the present invention is the cleaning apparatus according to the fourth aspect of the present invention, wherein the width between the opposing side walls of the cleaning tank at the cleaning nozzle arrangement position is larger than the width between the opposing side walls of the cleaning tank at the sliding part arrangement position. The water injection area can be further expanded, and the cleaning water can be reliably injected up to the corner of the tableware basket, so that the cleaning performance can be further improved.

  In particular, the sixth aspect of the invention is any one of the first to fifth aspects of the invention, wherein the sliding portion is configured to be substantially flush with the bottom surface of the tableware basket. Compared to the case where a sliding part is provided on the side of the tableware basket, the pitch between the left and right sliding parts of the tableware basket is less likely to change, and the positional relationship between the tableware basket and the sliding part Because it is stable, it is possible to realize a smoother and more stable sliding operation of the tableware basket.

  In a seventh aspect of the invention, in particular, in any one of the first to sixth aspects of the invention, the side wall of the cleaning tank is formed of resin, and the sliding part is formed integrally with the side wall of the cleaning tank, and is formed of resin. By doing so, the sliding part can be made compact compared to the case of forming by sheet metal drawing and the like, and by integrating with the cleaning side wall part, it can be made more compact. It is possible to construct a dishwasher with a wide space for storing dishes in the washing tank.

(Embodiment 1)
1 is a perspective view of the dishwasher when the door is opened in Embodiment 1 of the present invention, FIG. 2 is a front sectional view of the dishwasher, and FIG. 3 is a plan sectional view of the dishwasher when the door is opened. 4 is an enlarged view of portion a in FIG. 3, FIG. 5A is a cross-sectional view taken along line bb in FIG. 4, and FIG. 5B is a cross-sectional view taken along line cc in FIG.

  A washing tub 2 is provided in the main body 1 of the dishwasher, and a dish basket 4 for setting an object to be cleaned such as the tableware 3 is accommodated in the washing tub 2 so that it can be taken in and out of the washing tub 2. . An opening 5 is provided on the front surface of the cleaning tank 2 and is opened and closed by a door body 6. When the door body 6 is opened, the tableware 3 and the tableware basket can be taken in and out. The door body 6 is pivotally supported by the support shaft 7 at the lower end portion of the opening 5 so that the door body 6 is opened to a position where the inner surface of the door body 5 is upward and substantially horizontal at the front lower side of the opening 5. It is configured.

  The cleaning tank 2 includes a cleaning tank lower part 2a made of resin and a cleaning tank upper part 2b also made of resin. The cleaning tank lower part 2a is provided with a cleaning nozzle 8 provided rotatably inside thereof, and a cleaning water storage unit 10 for storing cleaning water in front of the cleaning nozzle 8, and the cleaning water is supplied to the cleaning nozzle 8 outside. A cleaning pump 9 is provided for supplying.

  The upper part 2b of the washing tub includes a tableware storage space 11 for storing the tableware 3 and the tableware basket 4, and a tableware basket support part integrally with the left and right side walls of the upper part 2b of the washing tub continuously from the opening 5 to the inner surface of the upper part 2b of the washing tank The cleaning tank sliding part 12 formed as a part and a cleaning tank lower part 2a are connected to each other, and the cleaning tank connecting part 13 is a space in which the cleaning nozzle 8 is rotated.

The left and right side walls of the cleaning tank upper part 2b bulge the lower part outward from the cleaning tank sliding part 12 and clean the width (distance interval) between the opposing side walls of the cleaning tank 2 at the position where the cleaning nozzle 8 is disposed. By making the width (distance interval) between the opposite side walls of the washing tub 2 at the position where the tank sliding portion 12 is arranged, the washing tub coupling portion 13 is configured to have a planar shape larger than the table basket 4 and the tableware storage space 11 by a predetermined amount. Has been.

  The cleaning nozzle 8 is disposed in the cleaning tank coupling portion 13 such that the cleaning nozzle 8 is always or temporarily present on the side wall of the cleaning tank 2 with respect to the outer frame of the tableware basket 4. In other words, a part of the rotation trajectory at the tip of the cleaning nozzle 8 is configured to be on the side of the side wall bulged to the outside of the lower part of the above-described cleaning tank upper part 2 b rather than the outer frame of the tableware basket 4.

  Then, in association with such a configuration, the cleaning tank sliding portion 12 is arranged at the tip of the cleaning nozzle 8 so as to avoid the injection of cleaning water from the cleaning nozzle 8 as shown in FIGS. 4 and 5B. The shape has a notch 12c partially corresponding to the rotation locus.

  The cleaning tank sliding part 12 is provided so as to protrude upward at the lower end of the cleaning tank sliding part inclined surface 12a and the cleaning tank sliding part inclined surface 12a inclined downward by a predetermined amount from the side wall of the cleaning tank upper part 2b toward the inside. And the washing tank sliding portion rib 12b. Moreover, as shown in FIG. 3, the washing tank sliding part rib 12b is continuously provided above the washing water storage part 10, and is divided into several parts at predetermined intervals at other points. It has been. In addition, the washing tank sliding part rib 12b does not exist in the part of the notch part 12c.

  The inner surface of the door body 6 has a height and an inclination so that the inner surface of the door body 6 is in an open state in which the inner surface is substantially horizontal upward, and is flush with the left and right cleaning tank sliding portion inclined surfaces 12a in the front and rear directions. A pair of left and right door sliding surfaces 14 are provided.

  On both sides of the bottom surface of the tableware basket 4, a basket-sliding member 15 having a sled shape having a length substantially the same as the depth dimension of the tableware basket 4 is provided. The lower surface of the car sliding member 15 is a flat surface having substantially the same inclination as the cleaning tank sliding portion inclined surface 12a. In addition, the height position is set so that the lower surface of the basket sliding member 15 is substantially in the same plane as the bottom surface of the tableware basket 4, and the bottom surface of the tableware basket 4 is approximately in the same plane as the washing tank sliding portion 12. It is comprised so that it may do.

  The width of the car sliding member 15 is smaller by a predetermined amount than the width from the side wall of the cleaning tank upper part 2b to the cleaning tank sliding part rib 12b, that is, the width of the upper surface of the cleaning tank sliding part inclined surface 12a. In the opened state, the table basket 4 can be smoothly put in and out from the cleaning tank 2 to the inner surface of the door body 6.

  Moreover, the sliding stopper part 16 is provided in the front front end of the door body sliding surface 14, and the drop-off from the door body 6 at the time of drawer | drawing-out of the tableware basket 4 is prevented. As shown in FIGS. 4 and 5 (b), the cleaning tank sliding portion inclined surface 12a is provided with a minimum necessary car so as not to obstruct the spray of cleaning water from the cleaning nozzle 8 to the tableware basket 4 as much as possible. The central portion is cut in accordance with the rotation trajectory of the cleaning nozzle 8 so as to leave the installation allowance of the sliding member 15.

  The operation and action of the dishwasher configured as described above will be described. The tableware 3 is set after the door body 6 is opened and the tableware basket 4 is pulled out until the car sliding member 15 comes into contact with the sliding stopper portion 16. After the setting of the tableware 3 is completed, the tableware basket 4 is pushed into the tableware storage space 11 and the opening 5 is closed by the door body 6, and then the operation is started.

The bottom surface of the car sliding member 15, the inclined surface 12a of the cleaning tank sliding portion, and the sliding surface 14 of the door body are substantially in the same plane, and the width from the side wall 2b of the cleaning tank to the cleaning tank sliding portion rib 12b, that is, the cleaning tank sliding portion. Since the width of the car sliding member 15 is reduced by a predetermined amount with respect to the width of the upper surface of the inclined surface 12a and there is a clearance between them, a smooth operation of putting in and out the tableware basket 4 can be realized.

  In addition, since the basket sliding members 15 are provided on both sides of the bottom surface of the tableware basket 4, the side wall of the tableware basket 4 is tilted, warped, against the influence of bending when a load is applied to the tableware 3. Compared to the case where the front sliding member 107 and the rear sliding member 108 are provided on the side surface of the tableware basket 106 as in the example, the change in the pitch of the left and right basket sliding members 15 is small, and the basket sliding member 15 and the washing tank sliding Since the positional relationship with the section 12 is stabilized, a smoother and more stable sliding operation of the tableware basket 4 can be realized.

  Further, even if the pitch of the left and right car sliding members 15 changes due to deformation of the tableware basket 4 or the like, the cleaning tank sliding portion rib 12b serves as a stopper for the basket sliding member 15 to come off. A highly safe dishwasher is realized in which the basket 4 does not fall off into the washing tank lower part 2a.

  When the operation is started, water is supplied to the cleaning water storage unit 10 and mixed with the detergent that has been put in advance to become cleaning water. When a predetermined amount of washing water is stored, the washing pump 9 is driven and pressurized washing water is jetted from the washing nozzle 8 toward the tableware 3. The cleaning water sprayed on the tableware 3 is collected in the cleaning water storage unit 10, pressurized again by the cleaning pump 9, and sprayed onto the tableware 3 from the cleaning nozzle 8. As described above, the dishwasher circulates and uses the washing water to achieve washing with a smaller amount of water compared to hand washing.

  As the circulation continues, the filth dropped from the tableware 3 is mixed into the wash water. If there is a substantially horizontal surface such as the convex portion 109 in the cleaning tank 102 as in the conventional example, the filth stays on the upper surface, and the filth may reattach to the tableware 101 in the next rinsing step. . In the dishwasher of the present invention, the washing tank sliding portion 12 has an inclined surface (washing tank sliding portion inclined surface 12a), and the washing tank sliding portion rib 12b is also divided and provided at a predetermined interval. Therefore, the filth adhering to the cleaning tank sliding part inclined surface 12a flows downward without staying, and the cleaning tank sliding part rib 12b and the cleaning tank sliding part rib 12b provided with a predetermined interval are provided. Since it is collected in the washing tank lower part 2a from the middle, filth does not collect in the washing tank 2, especially in the washing tank sliding part 12. As a result, it is possible to improve the cleaning performance without causing residual dirt to reattach to the tableware 3 in the rinsing step. Further, when the tableware basket 4 is put in and out, the filth is not caught and can be smoothly slid.

  Making the washing tub sliding portion 12 an inclined surface makes it easier for the tableware basket 4 to drop out than making it horizontal, but as described above, the washing tub sliding portion rib 12b prevents the tableware basket 4 from falling off. Therefore, both high cleaning performance and safety can be achieved.

  Moreover, since the washing tank sliding part rib 12b is continuously provided above the cleaning water storage part 10, it is possible to prevent the cleaning water from dripping from the cleaning sliding part 12 to the cleaning water storage part 10, so that the water in operation This makes it possible to realize a dishwasher that is quiet and free of dripping noise.

In the case of the conventional dishwasher as shown in FIG. 10, the washing water jet locus of the washing nozzle 116 is as indicated by d in FIGS. On the other hand, in the dishwasher of the present invention, the left and right side walls of the washing tank upper part 2b are bulged outward from the washing tank sliding part 12 so that the washing tank 8 is positioned between the opposing side walls of the washing tank 2. By making the width (distance interval) larger than the width (distance interval) between the opposite side walls of the cleaning tank 2 at the position where the cleaning tank sliding part 12 is arranged, the planar shape of the cleaning tank coupling part 13 is stored in the tableware basket 4 and the tableware storage. Since it is configured to be larger than the space 11, the spray locus of the cleaning nozzle 8 can be covered to the vicinity of the corner of the tableware basket 4 as indicated by e in FIGS. 3 and 4, and further, the center of the inclined surface 12a of the cleaning tank sliding portion Since the part has a shape having a notch 12c cut in accordance with the rotation trajectory of the washing nozzle 8, the washing water can be sprayed widely on the bottom surface of the dish basket 4, and the washing performance is higher than that of the conventional dishwasher. Can be realized .

  In the present embodiment, the notch 12c is provided in the cleaning tank sliding part 12 on both the left and right sides, but even when it is provided only in one of the cleaning tank sliding parts 12, the above side is provided on the provided side. High cleaning performance can be realized.

  Moreover, since the washing tank sliding part inclined surface 12a leaves the minimum installation fee for the car sliding member 15, the table basket 4 is not dropped into the washing tank lower part 2a by the taking-in / out operation.

  In the present invention, since the washing tank sliding portion 12 is formed of resin, the height dimension f (see FIG. 5) is the height dimension g (see FIG. 11) when formed by a conventional sheet metal drawing process. Can be smaller than Further, in order to widen the spray area of the cleaning nozzle 8, the cleaning tank sliding portion 12 needs to be configured above the cleaning nozzle 8. Therefore, it is better to form the cleaning tank sliding portion 12 with resin. The position can be lowered. As a result, the tableware storage space 11 can be widened, so that a more convenient dishwasher can be realized.

  When the washing process is completed, the washing water is drained and a rinsing process is performed. The rinsing process is performed based on the same principle as the cleaning process. Then, after this rinsing step, a drying step is performed as a final step, and a series of operations is completed. Since the dishwasher of the present invention has the washing tank sliding portion 12 as an inclined surface, less rinse water remains and less energy is used to evaporate the remaining water during the drying process than the conventional dishwasher. Therefore, the drying performance can be improved.

  As described above, the dishwasher according to the present invention can reduce the residue of washing water, washed-off filth and rinsing water on the dish-basket support portion of the washing tub. It is possible to provide a dishwasher with high safety that can improve operability and does not fall off even when a large load is applied to the dish basket. It can be applied to various devices such as washing machines that use baskets.

The perspective view at the time of door body opening of the dishwasher of Embodiment 1 of this invention Front sectional view of the dishwasher Plan sectional view when the door of the dishwasher is opened Enlarged view of part a in FIG. (A) bb sectional view in FIG. 4 (b) cc sectional view in FIG. Cross-sectional side view of a conventional dishwasher Side sectional view of the dishwasher Perspective view of the front sliding member of the dishwasher Perspective view of rear sliding member of the dishwasher Front sectional view of the main part of the washing tank sliding part of another conventional dishwasher Front sectional view of the main part of the washing tank sliding part of yet another conventional dishwasher

Explanation of symbols

2 Washing tank 3 Tableware (object to be washed)
4 Tableware basket 5 Opening part 12 Washing tank sliding part (sliding part)
12a Inclined surface of the washing tank sliding part (inclined surface)
12b Cleaning tank sliding part rib (rib)
12c Notch

Claims (7)

A tableware basket for setting an object to be cleaned, a cleaning tank having an opening and storing the tableware basket, and a pair of sliding parts for slidably supporting the tableware basket from the opening, The sliding portion has a sloped surface that slopes down from the side wall of the washing tank to the inside of the washing tank, and a rib that protrudes upward from a lower part of the sloped surface. The dishwasher of Claim 1 which provided the area | region in which at least 1 place rib does not exist in a sliding part. The dishwasher according to claim 1 or 2, further comprising a washing water storage section for storing washing water at a lower portion of the washing tank, wherein the sliding section has an area where no rib exists in a range located above the washing water storage section. A pair of sliding parts are provided on opposite side walls of the cleaning tank, and a cleaning nozzle for injecting cleaning water to the object to be cleaned is provided in the cleaning tank below the pair of sliding parts. Alternatively, it is configured to temporarily exist on the side wall side of the cleaning tank with respect to the outer frame of the tableware basket, and at least one of the pair of sliding portions is cut to avoid jetting cleaning water from the cleaning nozzle. The dishwasher of any one of Claims 1-3 made into the shape which has a notch part. The dishwasher according to claim 4, wherein the width between the opposite side walls of the washing tank at the position where the washing nozzle is arranged is larger than the width between the opposite side walls of the washing tank where the sliding portion is arranged. The dishwasher according to any one of claims 1 to 5, wherein the sliding portion is configured to be substantially flush with the bottom surface of the tableware basket. The dishwasher according to any one of claims 1 to 6, wherein a side wall portion of the washing tank is formed of a resin, and a sliding portion is integrally formed with the side wall portion of the washing tank.