JP2006334124A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher for which a water leaking part can be easily discriminated and repaired in a short time. <P>SOLUTION: The dishwasher comprises: a rail (not shown in Figure) for holding a washing tub 8 for washing dishes 11; an outer frame 10 for which a slope 10b is formed on the bottom surface and a water leakage sensor 12 for detecting water leakage is provided on the bottom part 10c; a control part 22 for detecting the operation signals of the water leakage sensor 12; and a cover 23 detachably provided on the lower part of the washing tub 8 and covering components such as a pump 14 from the lower part. The upper surface 23a of the cover 23 is divided into a grid shape by a projected front wall 23b, a rear wall (not shown in Figure), a side wall (not shown in Figure) and an inner wall 23e, and a hole 23g is formed at a position higher than the upper surface 23a of each grid 23f and lower than at least the inner wall 23e. When water is leaking, leaking water is tentatively accumulated to the height of the hole 23g inside the grid 23f and then falls down onto the slope 10b formed on the outer frame 10 from the hole 23g. Also, when the cover 23 is detached, the water leaking part is easily recognized by the state of water leakage of each grid 23f. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dishwasher, and more particularly to measures against water leakage in a built-in dishwasher installed in a storage space such as a sink.

  There is a built-in type dishwasher installed in the sink provided with a storage room with a front opening in the sink. When water leakage occurs in such a built-in type dishwasher for some reason, there is a problem that the inside of the sink is submerged or the inside of the sink is rotted. In order to avoid such a situation, conventionally, a hole was formed in the bottom part of the dishwasher, a water leak receiving material was installed in the storage room, and water leaked from the water leak receiving material to the floor (for example, Patent Document 1).

  A conventional dishwasher of this type will be described with reference to FIGS. FIG. 16 is a cross-sectional view of a conventional dishwasher described in Patent Document 1, and FIG. 17 is an enlarged view of a main part of the dishwasher.

  16 and 17, the dishwasher 1 is formed with a recess 2a that is one step lower in the bottom surface portion 2, and a hole 2b that communicates downward is formed at the front end portion thereof. In the sink 3, the leak receiving material is provided below the hole 2b. 4 is installed, and the leak receiving member 4 is formed with an inclined surface 4a and a hanging part 4b.

And when the water leak 6 generate | occur | produces in the dishwasher 1, the water leak 6 is received by the recessed part 2a formed in the bottom face part 2, and it is made to flow out of the machine quickly through the hole 2b formed in the front end of the recessed part 2a, and from the hole 2b. The leaked water 6 is received by the inclined surface 4a formed on the water receiving material 4, and quickly flows down toward the front side of the sink 3, and is guided to the floor surface 5 through the hanging part 4b. This makes it easy to know the water leakage 6 of the dishwasher 1.
JP-A-11-56738

  However, in the structure of the dishwasher of the conventional example, when the water leak 6 occurs in the dishwasher 1, the water leak 6 flows down on the floor surface 5 and gets wet, especially in the case of a large water leak, the entire floor surface 5 is wetted. When wiping was delayed, there was a problem that water leaked downstairs or the flooring was wetted and rotted.

  Also, when trying to take measures against water leakage, it is extremely difficult to identify the location of the water leakage because the water leakage is concentrated on the water receiving material 4, and if there are multiple small water leaks, grasp all of them. Therefore, it took a lot of time to take measures, and in some cases, it was not possible to take all measures and had a problem of recurring water leakage.

  The present invention solves the above-mentioned conventional problems, and even if water leaks in the dishwasher, the user can be notified of water leak without getting the floor surface wet, and can quickly grasp the water leak location. It is an object of the present invention to provide a dishwasher that can repair a leaked point reliably and in a short time.

  In order to solve the above-described conventional problems, a dishwasher according to the present invention includes a washing tank for washing dishes, a rail that holds the washing tank so as to be movable back and forth, and the rail is fixed and an inclined surface is formed on the bottom surface. And an outer frame having a water leakage sensor for detecting water leakage at the bottom of the inclined surface, a control unit for detecting an operation signal of the water leakage sensor, and a part such as a pump that is detachably provided below the cleaning tank. The upper surface of the cover is divided into a lattice shape by protruding front wall, rear wall, side wall and inner wall, and holes are formed in each lattice at a position higher than the upper surface and at least lower than the inner wall. Even if water leaks from the washing tank or parts, the water leaks up to the height of the holes in the lattice formed on the upper surface of the cover, and then falls to the inclined surface formed on the outer frame through the holes. Followed by tilt When the water reaches the bottom, the leak sensor is activated, and the control unit detects the signal from the leak sensor, which can inform the user of the dishwasher's leak by sound and display, wet the floor surface, etc. , Wiping is delayed, causing no serious damage such as leaking downstairs. In addition, when the cover is pulled out and removed, the leakage state of each grid formed on the top surface of the cover can be easily checked, and not only can the location of the leakage be detected easily, but also a small amount of leakage can be reliably detected. Therefore, repair can be performed quickly and reliably.

  In the dishwasher according to the present invention, even if water leaks from parts such as a washing tub and a pump, the water leaks up to the height of the holes in the lattice formed on the upper surface of the cover, and then is inclined to the outer frame through the holes. By falling on the surface, reaching the bottom while flowing on the inclined surface, operating the water leakage sensor, and informing the user of the water leakage of the dishwasher by sound and display, etc. with the control unit that detected it, We can eliminate the fear of major damage such as leaking water downstairs due to wet flooring or delayed wiping.

  In addition, by pulling out the washing tank and examining the leakage state of each grid formed on the top surface of the cover, not only can the location of the leakage be easily identified, but it is also possible to grasp even a slight amount of leakage. It can be carried out reliably and reliably.

  The first invention is a cleaning tank for cleaning dishes, a rail for holding the cleaning tank movably back and forth, and fixing the rail, forming an inclined surface on the bottom surface, and leaking water at the bottom of the inclined surface. An outer frame provided with a water leakage sensor to detect, a control unit for detecting an operation signal of the water leakage sensor, and a cover that is detachably provided below the cleaning tank and covers parts such as a pump from below. The upper surface is divided into grids by protruding front walls, rear walls, side walls, and inner walls, and holes are formed in each lattice at a position that is higher than the upper surface and at least lower than the inner walls. Even after this, the water leaks up to the height of the holes in the lattice formed on the upper surface of the cover, then falls to the inclined surface formed on the outer frame through the holes, and then flows to the bottom while flowing through the inclined surface. Reach and leak sensor When the control unit detects the signal from the water leakage sensor, it can notify the user of water leaking from the dishwasher by sound and display, and the floor may get wet, or the wiping will be delayed and leaking downstairs. Does not cause damage. In addition, when the cover is pulled out and removed, the leakage state of each grid formed on the top surface of the cover can be easily checked, and not only can the location of the leakage be detected easily, but also a small amount of leakage can be reliably detected. Therefore, repair can be performed quickly and reliably.

  In the second invention, in particular, the front wall, the rear wall and the side wall of the first invention are formed higher than the inner wall, and even if water leaks from the dishwasher and accumulates in the lattice formed on the upper surface of the cover. By making the front wall, rear wall, and side walls higher than the inner wall, there is much water leakage, even if it overflows from one lattice, it just flows into the next lattice at most by passing over the inner wall, There is no danger of water leaking out of the dishwasher over the side walls and wetting the floor.

  In the third invention, in particular, a symbol is given to each divided grid of the first or second invention, and the same symbol as the above symbol is given to the lower surface of the cleaning tank corresponding to the position of each grid. If water leaks from the cleaning tank, etc., part of the water leaks will accumulate in the grid formed on the upper surface of the cover, but the same symbol is also applied to the lower surface of the cleaning tank that is in the same positional relationship as each formed grid. Since it is attached, it is easy to know that the cleaning tank with the same symbol as the grid of the leaked water or the parts attached to the cleaning tank at the position of the symbol is the cause of water leakage. Not only can it be shortened, but repairs can be carried out reliably.

  In the fourth invention, in particular, a groove is formed by extending a lattice wall from each lattice of any one of the first to third inventions to a side wall, and a window is formed on the side wall at the end of the groove. In the vicinity of the window, for each groove, a symbol corresponding to each lattice is attached, and when water leaks in the dishwasher, the water leakage will first accumulate in the lattice formed on the upper surface of the cover, Since the grooves are provided by the lattice walls from each lattice, the water leaks simultaneously through the grooves and reaches the side walls. Since the window is formed on the side wall, the cleaning tank is pulled out without disassembling the product as in the conventional example in order to confirm the position of the water leakage, and a groove where water leaks is collected from the window formed on the cover side wall. If you check and look at the symbols on the side of the window, you can easily know the leak location and parts even with a slight leak, shorten the repair time, and repair the leak location and parts reliably. be able to.

  In the fifth invention, in particular, a groove is bent stepwise by a blocking wall near the side wall of the fourth invention to form a terminal end, and a window is provided at a position higher than the inner wall at the side wall of the terminal end, facing the window. Since the blocking wall is made higher than the upper end of the window, parts such as pumps cannot be seen or touched from the window by the blocking wall even if the washing tank is pulled out, so the appearance quality of the dishwasher is impaired, Since the safety is not lowered, and the water leakage position can be easily confirmed from the window formed on the side wall, the repair time can be shortened and the reliable repair can be performed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of the dishwasher according to the first embodiment of the present invention, FIG. 2 is a rear view of the dishwasher, FIG. 3 is a plan view of the cover of the dishwasher, and FIG. 3 is a cross-sectional view taken along the line AA of FIG. 3, and FIG. 5 is a cross-sectional view showing an installation state of the dishwasher. The same parts as those in the conventional example are given the same reference numerals and the description thereof is omitted.

  1 to 5, the washing tub 8 of the dishwasher 7 is held by a rail 9 so as to be movable back and forth, and can be pulled out from the outer frame 10. The upper part of the cleaning tank 8 is open, and the tableware 11 can be stored in the cleaning tank 8 by pulling the cleaning tank 8 out of the outer frame 10. An inclined surface 10b is formed on the bottom surface 10a of the outer frame 10, and a water leakage sensor 12 for detecting water leakage is attached to the bottom 10c.

  A cleaning nozzle 13 for spraying cleaning water on the dishes 11 is rotatably mounted in the cleaning tank 8. The lower surface 8a or the rear surface 8b of the cleaning tank 8 includes a pump 14 and a discharge hose 15 for supplying cleaning water to the cleaning nozzle 13, a water supply hose 16 and a water supply valve 17 for supplying water from the water supply, a heater 18 for heating the cleaning water, Further, many components such as a drain hose 19 and a trap 20 for draining the cleaning water in the cleaning tank 8 are attached.

  In addition, an exhaust guide 21 that discharges steam and a control unit 22 that controls electrical components such as the pump 14 are provided on the front surface 8 c of the cleaning tank 8. Further, a cover 23 is provided below the cleaning tank 8 so as to cover the pump 14 and the discharge hose 15 from below. The upper surface 23a of the cover 23 is divided into lattices 23f by a front wall 23b, a rear wall 23c, a side wall 23d, and an inner wall 23e protruding upward, and each lattice 23f protrudes from the upper surface 23a and is formed lower than each wall such as the inner wall 23e. The cover 23 is attached to the cleaning tank 8 with a screw 24 so that it can be removed by pulling out the cleaning tank 8 from the outer frame 10.

  About the dishwasher 7 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  After the washing tub 8 is pulled out and the dishes 11 are put in, the washing tub 8 is pushed into the outer frame 10 and the operation time is set by the control unit 22 to start the operation. The tap water is supplied, the pump 14 is activated, and the washing water is jetted from the nozzle 13 through the discharge hose 15, so that the dishes 11 can be washed. During the cleaning, a large amount of cleaning water is stored in the cleaning tank 8 and parts such as the pump 14. When the cleaning of the dishes 11 is completed, the pump 14 rotates in the reverse direction, and the cleaning water in the cleaning tank 8 is drained from the drain hose 19 via the trap 20. In many cases, after washing, the dishes 11 are dried by the heater 18 to complete a series of operations.

  Thus, during the operation of the dishwasher 7, a large amount of washing water is accumulated in parts such as the washing tub 8 and the pump 14, and there is a possibility that water leakage may occur due to damage during use or aging.

  If water leaks from a part or the like, the water leak 6 falls on the cover 23 and is stored in the grid 23f located under the water leaking part up to the height of the hole 23g. The water leakage 6 overflowing from the hole 23g falls on the inclined surface 10b formed on the bottom surface 10a of the outer frame 10 from the hole 23g, and further reaches the bottom 10c through the inclined surface 10b to operate the water leakage sensor 12. When the control unit 22 detects the signal from the water leakage sensor 12, the control unit 22 can notify the user of the occurrence of water leakage by sound or display means (not shown).

  As described above, according to the present embodiment, even when water leaks in the dishwasher 7, the water leak sensor 12 operates, and the signal from the water leak sensor 12 is detected by the control unit 22 to generate sound and display. Since it is possible to notify the user of water leakage by means, it is possible not only to deal with the floor surface without getting wet as seen in the conventional example, but also to leak down to the downstairs due to delay in wiping the floor surface. The fear of damage can be eliminated.

  Further, as shown in FIG. 5, when the cleaning tank 8 is pulled out and the screw 24 is removed, the cover 23 can be easily removed from the cleaning tank 8, and the leakage state of each grid 23f formed on the cover upper surface 23a can be determined. By checking, it is possible not only to easily grasp the location of water leakage, but also to reliably grasp even a small amount of water leakage, so that repair can be carried out quickly and reliably.

(Embodiment 2)
FIG. 6 is a cross-sectional view showing a dishwasher according to the second embodiment of the present invention, and FIG. 7 is a plan view of a cover of the dishwasher. In addition, about the same part as the dishwasher in the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the present embodiment, as shown in FIGS. 6 and 7, a cover 25 that covers parts such as the pump 14 is attached below the cleaning tank 8, and the upper surface 25a of the cover 25 is protruded from the front wall 25b and the rear wall 25c. The side wall 25d and the inner wall 25e are divided into a plurality of lattices 25f, and each lattice 25f is formed with holes 25g that are higher than the upper surface 25a and lower than the inner wall 25e that forms each lattice 25f, etc. 25c and the side wall 25d are formed higher than the inner wall 25e, and other configurations are the same as those of the first embodiment.

  About the dishwasher 26 comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

  Even if a large amount of water leakage 6 occurs from the dishwasher 26 and falls to the cover upper surface 25a and accumulates in the lattice 25f, the front wall 25b, the rear wall 25c, and the side wall 25d are formed higher than the inner wall 25e. Therefore, the water leak 6 flows down from the hole 25g and only flows into the lattice 25f that is close to the inner wall 25e in the cover 25 at most.

  As described above, according to the present embodiment, the front wall 25b, the rear wall 25c, and the side wall 25d of the cover 25 are separated from the inner wall 25e even if a large amount of water leakage 6 occurs from the components constituting the dishwasher 26 at a time. By forming it high, the water leakage 6 does not flow out of the dishwasher 26 and wet the floor 5.

(Embodiment 3)
8 is a cross-sectional view showing a dishwasher according to a third embodiment of the present invention, FIG. 9 is a plan view showing a cover of the dishwasher, and FIG. 10 is a plan view showing a lower surface of a washing tub of the dishwasher. FIG. In addition, about the same part as the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the present embodiment, as shown in FIGS. 8 to 10, the upper surface 27a of the cover 27 is divided into a plurality of lattices 27f by protruding front walls 27b, rear walls 27c, side walls 27d, and inner walls 27e, and each lattice 27f The hole 27g is formed at a position higher than the upper surface 27a and lower than the inner wall 27e forming each lattice 27f, and the divided lattice 27f is provided with a symbol 28 such as “A” to “P”, for example. The same symbol 30 of “A” to “P” is also attached to the cleaning tank lower surface 29a corresponding to the position of each grid 27f.

  About the dishwasher 31 comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

  If water leakage 6 occurs from the washing tub 29 of the dishwasher 31, etc., the water leakage 6 temporarily accumulates in the lattice 27f formed on the cover upper surface 27a and then flows down from the holes 27g formed in each lattice 27f. become. At this time, by finding the same symbol 30 as the symbol 28 attached to the lattice 27f in which the water leak 6 is accumulated in the cleaning tank lower surface 29a, the position of the water leak 6 and the component causing the water leak can be easily identified. Therefore, measures against water leakage can be carried out reliably in a short time.

(Embodiment 4)
FIG. 11 is a cross-sectional view showing a dishwasher according to a fourth embodiment of the present invention, FIG. 12 is a plan view of the cover of the dishwasher, and FIG. 13 is a side view of the cover. In addition, about the same part as the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the present embodiment, as shown in FIGS. 11 to 13, the upper surface 32a of the cover 32 is divided into a plurality of lattices 32f by a front wall 32b, a rear wall 32c, a side wall 32d, and an inner wall 32e, and laterally extends from each lattice 32f. A groove 33 is formed by extending the lattice wall 32h to the side wall 32d, and a hole 32g is formed in each lattice 32f at a position higher than the upper surface 32a and lower than the inner wall 32e forming each lattice 32f. A window 34 is formed on the side wall of the terminal end 33a, and in the vicinity of the window 34, the same symbol 37 as the symbol 35 attached to each lattice 32f is attached to each groove 33 corresponding to each lattice 32f.

  About the dishwasher 36 comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

  If the water leakage 6 occurs in the dishwasher, the water leakage 6 first accumulates in the lattice 32f formed on the cover upper surface 32a. However, the grooves 33 are provided from each lattice 32f by the lattice wall 32h. The water leakage 6 flows in the groove 33 at the same time and reaches the end 33a in the vicinity of the side wall 32d. The situation of the location of the water leakage 6 can be confirmed from the window 34 formed in the side wall 32d.

  As described above, according to the present embodiment, even if water leakage 6 occurs in the dishwasher 36, the situation of the water leakage location can be known from the window 34 provided on the side wall 32d of the cover 32. By searching for a grid with the same symbol 35 as the symbol 37 formed in the vicinity, the position and parts of the water leak 6 can be easily known, and not only can the repair of the water leak be performed in a short time, but also a more reliable repair. It can be carried out.

(Embodiment 5)
FIG. 14 is a plan view of the cover of the dishwasher according to the fifth embodiment of the present invention, and FIG. 15 is a cross-sectional view taken along the line BB of FIG. In addition, about the same part as the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In this embodiment, as shown in FIGS. 14 and 15, grooves 39 extending from each lattice 38f in the vicinity of the side wall 38d of the cover 38 are bent stepwise by the blocking walls 40 to form the end 39a. A window 41 is provided on the side wall 38d at a position higher than the inner wall 38e, and the blocking wall 40 facing the window 41 is made higher than the window upper end 41a.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

  Since the blocking wall 40 is provided at a position opposite to the window 41 higher than the window upper end 41a, parts such as the pump 14 and the discharge hose 15 arranged inside the cover 38 are not seen. If water leakage occurs in the dishwasher, the water leakage 6 falls into the lattice 38f formed on the upper surface 38a of the cover 38, and further reaches the end 39a through the groove 39, and is formed on the side wall 38d. Since the window 41 is formed at a position higher than the end 39 a of the groove 39, no water leaks from the window 41.

  As described above, according to the present embodiment, the inside of the cover 38 is hidden by the blocking wall 40, so that the appearance quality of the dishwasher is not deteriorated and the safety is not deteriorated, and it is formed on the side wall 38d. Since the window 41 is higher than the inner wall 38e, there is no risk of water leaking from the window 41 and wetting the floor.

  As described above, the dishwasher according to the present invention is capable of notifying the user of the water leakage in the control unit that detects the occurrence of water leakage in the interior, wets the floor surface, or leaks water downstairs. In addition, by removing the cover and confirming the leakage state of the grid, it is possible to easily grasp the location of the water leakage and perform repairs quickly and reliably. It can be applied not only to dishwashers but also to various devices that use water and liquids such as washing machines and water heaters.

Sectional drawing of the dishwasher in the 1st Embodiment of this invention Rear view of the dishwasher Top view of the dishwasher cover AA sectional view of FIG. Sectional view showing the installation state of the dishwasher Sectional drawing which shows the dishwasher in the 2nd Embodiment of this invention. Top view of the dishwasher cover Sectional drawing which shows the dishwasher in the 3rd Embodiment of this invention. Top view of the dishwasher cover Top view of the bottom of the dishwasher Sectional drawing which shows the dishwasher in the 4th Embodiment of this invention. Top view of the dishwasher cover Side view of the cover The top view of the cover of the dishwasher in the 5th Embodiment of this invention BB sectional view of FIG. Sectional view showing a conventional dishwasher Enlarged view of the main parts of the dishwasher

Explanation of symbols

7 Dishwasher 8, 29 Washing tank 8a Lower surface 8b Rear surface 8c Front surface 9 Rail 10 Outer frame 10a Bottom surface 10b Inclined surface 10c Bottom portion 11 Tableware 12 Water leakage sensor 14 Pump 22 Control unit 23, 25, 27, 32, 38 Cover 23a, 25a upper surface 23b, 25b front wall 23c, 25c rear wall 23d, 25d side wall 23e, 25e, 38e inner wall 23f, 25f, 27f, 38f lattice 23g, 25g hole 24 screw 28, 30, 35, 37 symbol 29a lower surface 32h lattice wall 33 , 39 Groove 33a, 39a Terminal 34, 41 Window 40 Blocking wall

Claims (5)

A washing tank for washing dishes, a rail for holding the washing tank so as to be movable back and forth, a leak sensor for fixing the rail and forming an inclined surface on the bottom surface and detecting leakage at the bottom of the inclined surface An outer frame, a control unit that detects an operation signal of the water leakage sensor, and a cover that is detachably provided below the cleaning tank and covers parts such as a pump from below, and the upper surface of the cover is A dishwasher in which a wall, a rear wall, a side wall, and an inner wall are divided into a lattice shape, and a hole is formed in each lattice at a position higher than the upper surface and at least lower than the inner wall. The dishwasher according to claim 1, wherein the front wall, the rear wall, and the side wall are formed higher than the inner wall. The dishwasher according to claim 1 or 2, wherein a symbol is attached to each divided grid, and the same symbol as the symbol is attached to the lower surface of the washing tank corresponding to the position of each grid. Grooves are formed by extending the lattice wall from each lattice to the side wall, a window is formed on the side wall at the end of the groove, and a symbol corresponding to each lattice is attached to each groove near the window. The dishwasher according to any one of claims 1 to 3. A groove is bent stepwise by a blocking wall in the vicinity of the side wall to form an end, a window is provided at a position higher than the inner wall at the side wall of the end, and the blocking wall facing the window is made higher than the upper end of the window. Item 5. A dishwasher according to Item 4.

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