JPS5912288B2 - dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a dishwasher that prevents splashing of cleaning liquid sprayed from a rotating spray nozzle, and prevents steam leakage and cleaning noise leakage during hot water washing and hot water rinsing. be.

Conventionally, gaskets for dishwashers have had a complicated cross section, usually consisting of a mounting flange and a gasket.
This flange portion is fixed to the tank between mounting plates.

Although the gasket portion is bonded to one end of the flange portion, only one side of the gasket portion is adhered, which often results in an unstable shape. This gasket is attached to a stepped portion around the opening of the cleaning tank, but the cleaning liquid comes into direct contact with the gasket, resulting in severe aging deformation of the gasket. Furthermore, since the gasket part is hit by a strong jet of liquid, there is a risk of water leaking from the sealing part, leading to deterioration of the sealing performance of the opening and water leakage accidents. The present invention has been devised to solve these problems, and its configuration will be described below.

In the figure, 101 is the main body of the dishwasher, which has a washing tank 2 inside and a lid 3 disposed to cover the front opening of the washing tank 2. A lid back plate 4 is attached to the inner surface of the lid 3. Two grooves 5 and 6 are provided on the periphery of the front opening of the cleaning tank 2, and two 15 ribs 7 and 8 are provided on the lid back plate 4 corresponding to the grooves. A gasket 9 having a rectangular cross section and a square overall shape is provided in the groove 6, and is brought into contact with the rib 8. The inner groove 6 on the periphery of the cleaning tank 2 is located deeper than the outer groove 5, and the upper horizontal part of the groove 6 is deeper than the lower both sides 20. That is, when these grooves 6 are viewed from the side, as shown in FIG. 3, the outer grooves 5 are vertical, while the inner grooves 6 have both ends slightly inclined forward. The ribs 10 of the cleaning tank 2 constituting this groove 6 have the same slope as the slope of the groove 6 in order to keep the depth of the groove 6 constant. The ribs 8 similarly have a slope. The cleaning liquid injected from the rotating jet nozzle 11 provided at the center of the bottom of the cleaning tank 2 is injected particularly through the rib 10 on the upper side of the cleaning tank and the gap 12 in the lid back plate 4, and is injected along the grooves 6 on both sides 30. It flows downward. A gasket 9 is inserted into this groove 6 and sealed with the rib 8 of the lid back plate 4, so that the above-mentioned jet rotating nozzle 11
Although the cleaning liquid sprayed from the inside will not leak further to the outside,
When the contact pressure between the gasket 9 and the rib 8 does not form a sufficient seal due to dimensional variations or assembly variations,
The force of the sprayed cleaning liquid may break through this seal. This scattered cleaning liquid is further removed from the grooves 5 and ribs 7 on the outside.
, there is almost no possibility of leakage to the outside by bypassing these barriers. Note that the lid back plate 4 mentioned above
A groove 13 provided on the lid back plate 4 side is formed between the ribs 7 and 8, and a rib 14 protrudes from the cleaning tank 2 in correspondence with this groove 13. This rib 14 is also a side wall of the groove 5. Since the double and triple ribs and grooves prevent the cleaning liquid from scattering and leaking, it has almost perfect sealing performance for the cleaning liquid.

Here, the food gases contained in the cleaning solution are
0 (the inside of the groove 6) becomes contaminated, and even if rinsed and cleaned in a later process, it is difficult for the food gas that has adhered to it to come out.However, since the groove 6 of the cleaning tank 2 is slanted, If the cleaning solution is injected from the gap 12 of the cleaning tank 2, and the water is flowed from the center of the upper side to the left and right, the water will flow along the slopes of each rib and side wall as described above, washing away gases and cleaning. It is guided to the bottom of tank 3.
The ribs and grooves will be cleanly cleaned after the final cycle. Note that although the grooves 5 and 6 are provided in the cleaning tank 2 and the ribs 7 and 8 are provided in the lid 3, the same effect can be obtained even if their formation positions are reversed.

As is clear from the above-mentioned embodiments, the dishwasher of the present invention achieves airtightness through a combination of grooves, ribs, and gaskets, and prevents splashing and leakage of cleaning liquid, steam leakage during hot water washing and hot water rinsing, Not only can leakage of cleaning noise be prevented, but by considering the shapes of the grooves and ribs, it has the excellent effect of effectively flushing out gases.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing one embodiment of the dishwasher of the present invention, Fig. 2 is an enlarged sectional view of the main parts, Fig. 3 is a side sectional view of the washing tank, and Fig. 4 is a perspective view of the gasket. It is. 2...Cleaning tank, 3...Lid, 5,6...
...Groove, 7, 8...Rib, 9...
Gasket, 11... Injection rotating nozzle.

Claims (1)

[Scope of Claims] 1. A groove is provided on either one of the periphery of the front opening of the cleaning tank having a rotating injection nozzle and the periphery of the lid that closes the opening of the cleaning tank, and a rib corresponding to the groove is provided on the other side. The dishwasher is characterized in that the grooves and the ribs are fitted together, and the first groove is equipped with a gasket so as to come into contact with the rib. 2. The dishwasher according to claim 1, wherein the groove is sloped from the top to the bottom to facilitate the flow of cleaning liquid, and a rib is formed in a shape corresponding to the groove.