JP3138126B2 - dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher provided with a viewing window on a door for opening and closing the washing room so that the dishes in the washing room can be visually checked.

[0002]

2. Description of the Related Art FIG. 5 shows the structure of a conventional dishwasher door.

The door 50 includes an inner door 51 and the inner door 51.
And a front plate 52 that covers the front surface of the front panel. An inner window 53 is formed in the center of the inner door 51 slightly above.
An outer window 54 facing the inner window 53 is formed in the front plate 52. The inner window 53 is covered with a transparent inner cover 55 from the front side of the inner door 51.
Is covered with a transparent outer cover 56 from the back side of the front plate 52. In this way, both the outer and inner windows are covered with the outer and inner covers, respectively, and as a result, the sight window of the door is covered with the double cover, thereby preventing leakage of the washing water from the sight window portion and cleaning. It suppresses sound leakage.

A support shaft 57 is attached to both sides of the lower end of the door 50, and the support shaft 57 is pivotally supported by a bearing (not shown) on the main body. Thus, the door 50 opens and closes using the support shaft 57 as a fulcrum. A lock mechanism 58 for locking the door 50 in a closed state is provided above the door 50.
Is provided.

[0005]

However, in the door 50 as described above, in the inner window 53 to which the washing water is applied, the surface of the inner cover 55 covering the inner window 53 is positioned with respect to the washing chamber. Since it is retracted forward from the inner window 53, a step 59 is formed by the thickness of the inner window 53. For this reason, it was easy for water to remain at the bottom of the frame of the inner window 53 after washing. Then, water remaining when the user opens the door 50 after the washing may be scattered, giving a bad impression to the user. Further, in the case where the drying step is performed after the washing, heat for evaporating the remaining water is taken away, and there is a possibility that the drying efficiency is reduced.

The present invention relates to an improvement in a dishwasher and solves such a problem.

[0007]

According to the present invention, there is provided a washing chamber for washing dishes, a tableware loading port provided in the cleaning chamber, and a door for opening and closing the loading port. A door and a front plate that covers the front surface of the inner door, wherein the inner door has an inner window, and the front plate has an outer window corresponding to the inner window, and the inner window has the inner window. In the dishwasher, which is covered with a transparent inner cover from the front side of the dishwasher and the outer window is covered with an outer cover, a portion of the inner cover facing the inner window is expanded toward the washing chamber to form a bulged portion. formed, the inner mosquitoes
The bulge of the bar is fitted into the inner window, and the bulge of the inner cover
So that the peripheral back surface of the part is flush with the back surface of the inner door.
Those were.

[0008]

In the inner cover, a portion facing the inner window is swollen toward the cleaning chamber to form a swollen portion, and the swollen portion is fitted into the inner window to form a swollen portion. Since the peripheral back surface is flush with the rear surface of the inner door, no cleaning water remains on the bottom of the inner window frame after cleaning.

[0009]

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings.

In FIG. 4, reference numeral 1 denotes a dishwasher according to the present embodiment, reference numeral 2 denotes a metal machine frame, and reference numeral 3 denotes a box-shaped washing chamber which is a resin molded product disposed in the machine frame 2.

Reference numeral 4 denotes a long nozzle which is rotatably supported in the horizontal direction substantially at the center of the bottom of the cleaning chamber 3. 5 is a plurality of injection ports formed upward on the upper surface of the nozzle, and 6 are propulsion holes formed on both sides in the horizontal direction, that is, tangential to the rotation orbit of the nozzle 4 on the upper surface of the tip of the nozzle 4. It is an injection port. These propulsion jets 6
The nozzles are alternately opened and closed by a switching mechanism (not shown) built in the nozzle 4 during cleaning.

Reference numeral 7 denotes a pump attached to the outer bottom of the washing chamber 3 for sending washing water stored in the bottom of the washing chamber 3 to the nozzle 4. Reference numeral 8 denotes a loop heater arranged at the bottom of the cleaning chamber 3 from the rear to the center. The heater 8 warms the cleaning water to promote the cleaning effect at the time of cleaning, and warms the drying air to promote the drying effect at the time of drying. Reference numeral 9 denotes a drainage tank formed at the front of the bottom surface of the cleaning chamber 3 and connected to the pump 7. 10 is to collect garbage left over from tableware,
The filter is provided above the drain tank 9.

Reference numeral 11 denotes a tableware basket which accommodates a tableware 12 above the nozzle 4. Reference numeral 13 denotes rollers provided at four places at the bottom of the tableware basket 11. The tableware basket 11 can be moved back and forth on the rails 14 provided from the side walls of the washing room 3 by the rollers 13.

Reference numerals 45 and 46 denote outlets and inlets provided at the upper and lower portions of the rear wall of the washing chamber 3, respectively. 4
7 is a drying air path connecting these outlets 45 and inlets 46,
Reference numeral 48 denotes a circulation fan disposed in the drying air passage 47.
During drying, the circulating fan 48 circulates dry air between the cleaning chamber 3 and the drying air passage 47.

Reference numeral 15 denotes a rectangular input port provided at the front of the washing room 3, and the tableware 12 stored in the tableware basket 11 is provided.
Is put into the washing room 3 from here. Reference numeral 16 denotes a door for opening and closing the input port 15, which pivotally supports the lower end, and opens forward with the lower end as a fulcrum. In addition, a rectangular viewing window 17 is provided substantially at the center of the door 16 so as to correspond to the tableware position in the washing room 3.

Hereinafter, the door 16 will be described in detail with reference to FIGS. The door 16 is roughly divided into a door 16
Inner door 1 that is the base of
8 and a front plate 30 as a decorative door covering the front of the inner door
It is composed of

The inner door 18 is a door made of polypropylene (PP) made in a rectangular shape according to the appearance of the device, and has a rectangular convex portion 19 bulging forward at the center. On the back surface of the inner door 18, reference numeral 20 denotes a rib formed rearward along three sides excluding the bottom side. The rib 20 fits inside the inlet 15 when the door 16 is closed. Prevent water leakage from between.

On the front surface of the inner door 18, reference numeral 21 denotes a reinforcing bracket attached along each side near each side of the inner door looking into the bottom side. Reference numerals 22 are support shafts attached to both ends of a lower end portion of the inner door 18, and are screwed to both ends of a reinforcing metal member 21 a provided near the bottom of the inner door 18. The support shaft 22 is pivotally supported by a bearing (not shown) provided on the main body side. Reference numeral 23 denotes a spring attached to the support shaft 22, which biases the door 16 in a closing direction. The door 16 can be easily closed with a small force by the urging force of the spring 23.
Numeral 24 is a packing attached directly below the reinforcing metal 21a along the metal fitting.

Reference numeral 25 denotes an inner window provided slightly upward in the center of the convex portion 19, and constitutes an inner portion of the viewing window 17. Reference numeral 26 denotes a transparent inner cover that covers the inner window 25 from the front of the projection 19, and is made of polypropylene (PP).
The inner cover 26 has a bulged portion 27 that conforms to the shape of the inner window 25 by slightly expanding the portion corresponding to the inner window 25 rearward. And inner cover 2
6 is attached to the projection 19 by fitting the bulging portion 27 into the inner window 25 and then welding the flange portion 28 provided therearound. The bulging portion 27 has a concave shape slightly depressed forward from the peripheral edge toward the center, and the peripheral back surface is the same as the rear surface of the projection 17.
Reference numeral 29 denotes a rubber damping material attached to a position below the inner window 25 on the front surface of the projection 19.

The front plate 30 covering the front surface of the inner door 18
Is made of polystyrene (PS), is formed in a thin box shape, and is fixed to an appropriate position of the inner door 18 with a screw 31. 32
Is an outer window provided at the center of the front plate 30 so as to face the inner window 25, and constitutes the viewing window 17 together with the inner window 25. A window frame 33 is formed on the outer edge of the outer window 32 so as to project toward the inner window 25, and a front end of the window frame 33 faces the peripheral wall 34 of the bulging portion 27.

Reference numeral 35 denotes a handle hole opened above the outer window 32, and reference numeral 36 denotes a handle portion for hooking a fingertip inserted through the handle hole 35. Reference numeral 37 denotes a sound absorbing material interposed between the lower portion of the front plate 30 and the vibration damping material 29. This sound absorbing material 3
No. 7 is obtained by foaming polyethylene.

Reference numeral 38 denotes a door lock mechanism attached to the center of the upper end of the inner door 18. This lock mechanism 38 is
When the latch knob 39 protruding from the handle hole 35 is moved to the right when viewed from the front in a state in which the door 16 is closed, the latch 40 is engaged with a latch guide (not shown) on the main body side, and the door 16 is locked. The lock is released when you return to the left.

Reference numeral 41 denotes a transparent window cover made of acrylonitrile styrene (AS) which covers the outer window 32, that is, the viewing window 17, from the front of the front plate 30. This window cover 30
An engagement claw 42 is provided at an appropriate position on the peripheral edge of.
The window cover 30 engages the engaging claw 42 with an engaging hole 43 provided in the front plate 30 so that the front plate 30
Attached to. The upper end of the window cover 41 extends to the upper end of the handle hole 35, and the portion covering the handle hole 35 is recessed so as to form a space for a fingertip. The lower end of the window cover 30 extends to a lower portion of the door 16, that is, a position below the vibration damping material 29 and the sound absorbing material 37.

The portion of the front plate 30 covered by the window cover 41 is recessed backward by the thickness of the window cover 41 in advance. Thus, when the window cover 41 is attached, the front surface of the window cover 41 and the front surface of the front plate 30 where the window cover 41 is not located are flush with each other.

With the above configuration, during the cleaning operation, the pump 7 operates to supply water into the nozzle 4.
The washing water sent into the nozzle 4 is jetted from the jet port 5 toward the upper tableware, and the tableware 12 is washed. At the same time, of the propulsion injection ports 6, the injection port that is not closed by the switching mechanism is jetted laterally, and the thrust generated by this injection rotates the nozzle 4. The propulsion jets 6 are alternately opened and closed as described above, whereby the rotation direction of the nozzle 4 is switched.

Here, the propulsion jet 6 is located substantially at the height of the lower end of the door 16, and the washing water jetted from the propulsion jet 6 in the lateral direction flows to the lower part of the door 16. Hit directly and hit the lower part of door 16 violently. At this time, since the braking material 29 is attached to the lower portion of the inner door 18 to which the washing water is applied, the vibration of the inner door 18 itself is suppressed, and the generation of noise is suppressed. The generated noise is absorbed by the sound absorbing material 37. The lower end of the window cover 41 is extended to the lower part of the door 16, that is, to a position below the vibration damping material 29 and the sound absorbing material 37, forming a double cover of the front plate 30 and the window cover 41. Therefore, noise leakage is further reduced.

Further, in the inner cover 26, the inner window 25
Is bulged toward the cleaning chamber 3 side to form a bulged portion 27.
The bulging portion 27 is fitted in the inner window 25 so that the peripheral back surface of the bulging portion 27 is flush with the back surface of the inner door 18. There is no step between the frame portion and the inner cover 26. Therefore, after washing
No cleaning water remains on the bottom portion of the frame of the inner window 25, and the water remaining when the user opens the door 16 after the cleaning does not scatter and give a bad impression to the user. Further, even when the drying step is performed after the washing, the drying efficiency is not reduced.

Further, by forming a window frame 33 from the periphery of the outer window 32 toward the inner window 25, the outer window 32 and the inner window 25 are formed.
To prevent the inside of the door 16 from being seen. Further, the window frame 33 suppresses noise transmitted to the inside of the door 16, that is, between the inner door 18 and the front plate 30, from leaking to the outside through the outer window 32. Since the front end portion of the window frame 33 is opposed to the peripheral wall 34 of the bulging portion 27, which is the strongest in the inner cover 26, the front surface of the door 16 may be strongly pushed. Is hard to damage even if the inner cover 26 strongly hits the inner cover 26.

Although the front plate and the window cover are in close contact with each other in FIG. 2 of this embodiment, a gap is provided between the front plate and the window cover to form an air layer. , The soundproofing effect can be further improved.

[0031]

According to the structure of the present invention, in the inner cover for covering the inner window formed on the inner door from the front surface of the inner door, that is, the side not facing the cleaning room, the portion facing the inner window is formed. Swelling to the washing chamber side to form a swelling portion, and fitting the swelling portion into the inner window so that the peripheral back surface of the swelling portion is flush with the back surface of the inner door. Therefore, there is no step between the frame portion of the inner window and the inner cover. Therefore, after the washing, no washing water remains on the bottom portion of the frame of the inner window, and the water remaining when the user opens the door after the washing does not scatter and give a bad impression to the user. Further, even when the drying step is performed after the washing, the drying efficiency is not reduced.

[0032]

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a door of a dishwasher according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a rear view of the door.

FIG. 4 is a side longitudinal sectional view showing the entire configuration of the dishwasher according to the embodiment of the present invention.

FIG. 5 is a longitudinal sectional view showing a configuration of a conventional dishwasher door.

[Explanation of symbols]

 3 Cleaning Room 15 Inlet 16 Door 18 Inner Door 25 Inner Window 26 Inner Cover 27 Swelling Part 30 Front Plate 32 Outer Window 33 Window Frame 34 Peripheral Wall 41 Window Cover (Outer Cover)

Continuation of the front page (56) References JP-A-7-163502 (JP, A) JP-A-63-192967 (JP, U) JP-A-1-62758 (JP, U) JP-A 63-52571 (JP) , U) Japanese Utility Model Showa 57-169256 (JP, U) Japanese Utility Model Showa 57-172666 (JP, U) Japanese Utility Model Hei 2-59763 (JP, U) Japanese Utility Model Sho 47-4205 (JP, Y1) Japanese Utility Model Utility 6-30136 (JP, Y2) Jiko No. 7-52683 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 15/42

Claims (1)

(57) [Claims] 1. A washing room for washing dishes, a tableware input port provided in the washing room, and a door for opening and closing the input port, wherein the door is an inner door and a front surface of the inner door is provided. An inner window on the inner door, an outer window corresponding to the inner window on the front panel, and a transparent inner cover for covering the inner window from the front side of the inner door. In a dishwasher having the outer window covered with an outer cover, a portion of the inner cover facing the inner window is expanded toward the washing chamber to form a bulged portion, and the inner cover is expanded. Outer part in the inner window
The inner peripheral surface of the bulge of the inner cover is
A dishwasher characterized by being flush with the surface .