JP3263506B2 - dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a dishwasher.

[0002]

2. Description of the Related Art Conventionally, in a dishwasher, a long nozzle that rotates in a horizontal direction is disposed below tableware accommodated in a washing room, and a nozzle formed on an upper surface of the nozzle is directed upward to tableware. There is one that injects washing water to wash dishes. In such a dishwasher, there is a dishwasher in which a lateral propulsion jet is formed in the nozzle, a propulsive force is generated by jetting from the propulsion jet, and the nozzle is rotated. JP-A-2-30
No. 5538 (A47L15 / 42).

[0003]

However, in the above-described dishwasher, the washing water jetted from the propulsion jet in the lateral direction is placed under a door provided at the front of the washing room. Since it hit directly and hit the lower part of the door violently, generation of loud noise was inevitable.

[0004] The present invention relates to an improvement in a dishwasher, and aims at suppressing the noise generated at the lower part of a door from leaking to the outside.

[0005]

DISCLOSURE OF THE INVENTION The dishwasher of the present invention comprises:
A washing chamber for accommodating dishes, a jet port for rotatably supported at the bottom of the washing chamber, and for jetting washing water toward upper dishes, and a propulsion for jetting washing water in a lateral direction to generate thrust. A long nozzle having an injection port formed therein, a pump for supplying water to the nozzle, an input port for tableware provided in the front of the washing chamber, a door for opening and closing the input port, and an arrangement of the tableware A viewing window opened in the door corresponding to the position, and a transparent window cover covering the viewing window from the front of the door, wherein a lower end of the window cover is laterally injected from the propulsion injection port.
It is extended to the lower part of the door to which the washing water is applied.

[0006]

[Action] A viewing window corresponding to the position of the tableware is opened on the door so that a user can visually check the tableware stored in the washing room, and the viewing window does not leak washing water or washing sound. The front of the door is covered with a transparent window cover so that the dishes in the room can be seen. The lower end of the window cover extends to the lower part of the door. As a result, the lower part of the door can be more firmly covered not only by the door body but also by the window cover, thereby suppressing leakage of noise generated by the washing water jetted from the propulsion jet from the door. be able to.

[0007]

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 a 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 at 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 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 polypropylene (PP) door 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 except 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 bracket 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 designates 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.
That is, by preventing a step from being formed between the convex portion 17 and the rear surface, the cleaning water does not remain at the bottom of the frame of the inner window 25 after the cleaning. 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 formed above the outer window 32; Reference numeral 37 denotes a sound absorbing material interposed between the lower portion of the front plate 30 and the damping material 29. This sound absorbing material 3
7 is polyethylene foamed.

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.

Now, with the above configuration, during the cleaning operation, the pump 7 operates to send 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 portion 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.

Although the front plate and the window cover are in close contact with each other in FIG. 2 of the present 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.

[0026]

According to the structure of the present invention, by extending the window cover covering the window formed on the door to the lower part of the door,
Since the lower part of the door, which the cleaning water injected from the propulsion injection nozzle of the nozzle violently hits, is firmly covered by the door body and the window cover, noise leaking from the door during cleaning can be suppressed, The noise of the device can be reduced.

[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.

[Explanation of symbols]

 Reference Signs List 3 washing room 4 nozzle 5 injection port 6 propulsion injection port 15 input port 16 door 17 viewing window 41 window cover

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47L 15/42

Claims (1)

(57) [Claims] 1. A washing chamber for accommodating tableware, an ejection port rotatably supported at the bottom of the washing chamber and ejecting washing water toward upper dishes, and a thrust force for ejecting washing water in a lateral direction. A long nozzle formed with a propulsion injection port that generates water, a pump for supplying water to the nozzle, a tableware input port provided at the front of the washing chamber, and a door for opening and closing this input port a viewing window opened in the door corresponding to the arrangement position of the dishes, and a transparent window cover for covering the viewing window from the front of the door, the lower end of the window covering, jetting the propulsion
A dishwasher, wherein the dishwasher extends to a lower portion of the door to which washing water injected from a mouth is applied .