JP2003260015A - Dish washer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer whose front upper part is prevented from being wetted by steam generated within a washing chamber without projecting to the front more than needed and in which a floor is prevented from being wetted when a door is opened or closed. <P>SOLUTION: The dish washer 20 is provided with the washing chamber 22 for washing by putting tableware in the inside from an opening 22a placed in the front part, a door 30 for opening and shutting the opening by rotatably attaching the lower end part to the lower part of the opening 22a placed in this washing chamber 22, and a steam exhausting nozzle 40 which is placed in the upper part of this door 30 and leads to the outside steam generated within the washing chamber 22. The steam exhausting nozzle 40 is formed in a tube form, in which a tip is closed and a base end is opened, and is attached to the door 30 by projecting the tip from the front of the door, and a leading port 42 is placed away from the tip in the bottom wall 41a of the projecting portion 41 of this steam exhausting nozzle 40, and a guide wall 43 is established in the inside surrounding portion of this leading port 42. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly to a dishwasher in which a steam exhaust nozzle is provided in a door that rotates around a lower edge to open and close an opening of a washing cabinet.

[0002]

2. Description of the Related Art Conventionally, as a dishwasher of this type, a washing cabinet for putting dishes into the inside through an opening provided in a front portion and a lower end portion pivoted to a lower portion of the opening provided in the washing cabinet. It is known that a door that can be installed to open and close the opening, and a steam exhaust nozzle that is provided above the door so as to protrude from the front surface of the door by a predetermined amount and discharges the steam generated in the cleaning cabinet to the outside are provided. ing. An example of such a dishwasher is disclosed in Japanese Utility Model Laid-Open No. 55-170056. This publication discloses a lid body that can be opened and closed in the vertical direction via a shaft support portion provided at the lower portion of a front opening of a cleaning tank, an operation panel arranged above the lid body, the operation panel and the lid body. Disclosed is a dishwasher having an exhaust port provided at the upper part of the container so as to connect the inside of the cleaning tank to the outside air. A front wall portion that guides the exhaust flow upward is provided at the outlet of the dishwasher, and a gap is formed between the upper end of the front wall portion and the front surface of the operation panel. Further, the front wall portion is formed in a substantially U shape having a folded portion at the upper end. In the dishwasher configured as described above, when drying the washed dish, the steam generated in the washing cabinet is discharged to the outside through the exhaust port and the gap. Further, when the lid is opened and placed in a horizontal state, it is prevented that vapor is condensed and water droplets attached to the exhaust port are accumulated on the front wall portion and fall to the floor.

[0003]

However, during the drying operation of the dishwasher of the above publication, the steam generated in the washing cabinet is discharged from the gap and rises along the front surface of the operation panel. There is a problem that the surface of the panel gets wet with steam. Furthermore, there is a problem in that the front end of the top plate of the dishwasher arranged directly above the operation panel also gets wet with the steam rising along the operation panel.

Therefore, in order to deal with these problems, the front wall portion is further extended forward and the gap is provided apart from the operation panel, or the gap is provided apart from the operation panel without changing the front wall portion. It was thought that
In the case of the former measure, the part protruding from the operation panel becomes an obstacle, and in the case of the latter measure, the fold-back part of the front end becomes short when opening the lid and making it horizontal. Since the amount of water that can be stored in the front wall portion becomes small, water droplets attached to the exhaust port may overflow the front wall portion and fall to the floor.

The present invention has been made to solve the above problems, and an object of the present invention is to prevent the front surface of the dishwasher from overhanging more than necessary and to prevent the front surface of the dishwasher by the steam generated in the washing cabinet. While preventing the upper part from getting wet,
It is to prevent the floor surface from getting wet when opening and closing the door.

[0006]

SUMMARY OF THE INVENTION (Means for Solving the Problems and Actions / Effects of the Invention) In order to achieve the above object, a structural feature of the present invention is that tableware is put inside from an opening provided in a front portion. A washing cabinet to be washed, a door that opens and closes the opening by rotatably attaching the lower end to the lower portion of the opening provided in this washing cabinet, and a vapor provided in the upper portion of this door to lead out the vapor generated in the washing cabinet to the outside. In a dishwasher equipped with a steam exhaust nozzle, the steam exhaust nozzle is formed into a tubular shape having a closed front end and a proximal end, and the front end of the steam exhaust nozzle is attached to a door so that the steam exhaust nozzle is attached to the door. This is because the outlet wall is provided on the bottom wall of the protruding portion away from the tip, and the guide wall is provided upright on the inner peripheral edge of the outlet port.

According to this, the door is closed during the drying operation of the dishwasher, and at this time, the outlet provided on the bottom wall of the protruding portion of the steam exhaust nozzle faces downward. Therefore, the steam generated in the washing cabinet flows downward from the outlet and then rises, part of which rises beyond the tip of the steam exhaust nozzle, and part of which flows along the bottom wall of the steam exhaust nozzle. It rises from the tip of the nozzle. Therefore, it is possible to prevent steam from rising along the upper portion of the front surface of the dishwasher as in the conventional case, and thus it is possible to prevent the surface from getting wet with steam.

Further, when the door is opened and brought into a horizontal state after the completion of the drying operation, the tip of the vapor exhaust nozzle faces downward. Therefore, the water droplets that have condensed and adhered to the inner surface of the steam exhaust nozzle flow along the inner surface toward the tip side and collect at the tip of the steam exhaust nozzle. At this time, the water droplets that have reached the rear portion (proximal end side) of the guide wall are guided by the guide wall (along the guide wall) and flow to the front portion of the guide wall, so prevent the water droplets from flowing out from the outlet. You can Therefore, it is possible to prevent water droplets from falling on the floor.

Further, when the door in the open state (horizontal state) described above is closed, the water accumulated at the tip of the steam exhaust nozzle flows along the inner surface toward the base end side, and the base end opening of the steam exhaust nozzle is opened. Run off from. At this time, since the water droplets that have reached the front portion (tip end side) of the guide wall are guided by the guide wall (along the guide wall) and flow to the rear portion of the guide wall, it is possible to prevent the water droplets from flowing out from the outlet. it can. Therefore, it is possible to prevent water droplets from falling on the floor.

Further, in the present invention, it is preferable that the front portion of the guide wall is formed so as to taper toward the front. According to this, when the door in the open state (horizontal state) is closed, when the water accumulated at the tip of the steam exhaust nozzle flows along the inner surface toward the base end side and flows down from the base end opening of the steam exhaust nozzle. , Front part of guide wall (tip side)
Since the water droplets that have reached the point smoothly flow along the tapered slope of the guide wall, they prevent the water droplets from crossing over the front guide wall. Therefore, it can be prevented from flowing out from the outlet.

Further, according to the present invention, when the door is provided with a steam outlet pipe having one end connected to the other end opening of the steam exhaust nozzle and the other end opened to the lower inside of the washing chamber, the door is opened horizontally. Further, it is preferable to provide a weir on the inner wall of the vapor outlet pipe to prevent the liquid in the vapor outlet pipe from flowing out from one end side. According to this, when the door is opened and brought into a horizontal state after the completion of the drying operation, the steam outlet pipe is also horizontal, and the inner wall front portion of the steam outlet pipe is on the lower side. At this time, the water droplets that have condensed and adhered to the inner surface of the steam outlet pipe are
Although it flows toward the one end side along the inner wall by the momentum of opening the door (in reaction), it is dammed by the weir provided on the inner wall. Therefore, it is possible to prevent the water droplets attached to the inner wall surface of the steam outlet pipe from flowing into the steam exhaust nozzle.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view schematically showing a dishwasher. This dishwasher 20 is of a type that is built into the system kitchen 10 for home use.
A housing body 21 is provided. Housing body 21
Inside the container, a washing cabinet 22 for putting the tableware S into the interior through an opening 22a provided at the front and washing the dish, and this washing cabinet 22
A pump 23 is provided below.

A dish basket 24 for storing dishes S is arranged inside the washing cabinet 22 so as to be able to move in and out through a front opening 22a. Above and below the dish basket 24, upper and lower wash chambers are provided. The nozzles 25 and 26 are provided so as to be rotatable in the horizontal direction. In addition, a water storage portion 22b for storing cleaning water is formed at the bottom of the cleaning cabinet 22. Pipes 27 and 28 connected to the discharge port 23b of the pump 23 are attached to the upper and lower cleaning nozzles 25 and 26, and a pipe 29 connected to the suction port 23a of the pump 23 is attached to the water storage unit 22b. Cage, pump 2
When 3 operates, the cleaning water stored in the water storage portion 22b is sucked and sprayed from a plurality of holes provided in the upper and lower cleaning nozzles 25 and 26.

A front opening 22 is provided on the front surface of the washing cabinet 22.
The lower end of the door 30 that opens and closes a is the front opening 2 of the washing cabinet 22.
The door 30 is rotatably attached by being supported by the lower part of 2a. When the door 30 is in the closed state (shown by the solid line in FIG. 1), the front opening 22a is liquid-tightly closed, and when it is in the open state (shown by the two-dot broken line in FIG. 1), it is supported in the horizontal state. ing. The door 30 has an inner panel 31 and an outer panel 32.
An inlet 31a and an outlet 32a are provided in the lower part of 1 and the upper part of the outer panel 32, respectively. The inlet 31a is opened downward in the washing cabinet 22, and the outlet 32a faces the outside of the dishwasher 20. Inside the door 30, the upper end has an inlet 31 a for the inner panel 31.
And a lower end thereof is connected to the outlet 32a of the outer panel 32, and a steam outlet pipe 33 is provided for introducing the steam in the cleaning cabinet 22 from the inlet 31a and discharging it from the outlet 32a to the outside of the cleaning cabinet 22. There is.

A steam exhaust nozzle 40 is detachably and liquid-tightly fitted to the outlet 32a of the outer panel 32.
As shown in FIGS. 2 and 3, the steam exhaust nozzle 40 is formed in a tubular shape having a rectangular cross section in which the front end (front end) is closed and the base end (rear end) is opened. The front end of the outer panel 32 is attached with its tip protruding by a predetermined amount. The tip of the steam exhaust nozzle 40 is set so as not to protrude more than necessary from the tip of the top plate 11 of the system kitchen 10. As a result, one end (upper end) of the steam outlet pipe 33 is connected to the base end opening 40a of the steam exhaust nozzle 40. The bottom wall 41a of the protruding portion 41 of the steam exhaust nozzle 40 is inclined forward and obliquely upward, and the bottom wall 41a is provided with an outlet 42 at a predetermined distance from the tip of the steam exhaust nozzle 40. ing. A guide wall 43 is provided upright on the inner peripheral edge of the outlet 42. When viewed from above, the guide wall 43 is formed so that the front portion tapers toward the front (the tip side of the steam exhaust nozzle 40) (see FIG. 3). That is, the front wall of the guide wall 43 is formed such that the central portion thereof projects from both sides.

The concave portion 44a1 provided on the upper wall 44a of the insertion portion 44 of the steam exhaust nozzle 40 and the convex portion 32a1 provided on the inner peripheral surface above the outlet 32a of the outer panel 32 are engaged with each other. , The steam exhaust nozzle 40 is the door 30
Is locked to.

Further, as shown in FIG. 1, the housing body 21 is provided with an air blower 50. This blower device 50 has one end connected to the washing cabinet 22 and the other end communicating with the outside of the dishwasher 20, and a blower pipe 51 provided at the inlet of the blower pipe 51 to blow outside air into the washing cabinet 22. And a heater 53 provided in the middle of the blower pipe 51 for heating the outside air passing through the blower fan 52.
Is equipped with. The blower 50 is operated when drying the dishes S that have been washed (during the drying operation), takes in outside air, heats it, and supplies it to the inside of the washing cabinet 22.

The case of using the dishwasher configured as described above will be described. The tableware S is stored in the tableware basket 24, the tableware basket 29 is stored in the washing cabinet 22, and the door 30
And the start switch (not shown) is pressed, the dishwasher 20 starts washing. The dishwasher 20 supplies a predetermined amount of water into the washing cabinet 22 and then operates the pump 23 to jet the washing water toward the dishes S from the upper and lower washing nozzles 25 and 26. When this washing is completed, the dishwasher 20 drains the washing water in the washing cabinet 22 to the outside and operates the air blower 50 to dry the dishes S.
During this drying operation, the door 30 is closed, and at this time, the outlet 42 provided in the bottom wall 41a of the projecting portion 41 of the steam exhaust nozzle 40 faces downward. Therefore,
The steam generated in the cleaning cabinet 22 is the steam outlet pipe 3
3 to reach the steam exhaust nozzle 40, and the nozzle 4
0 flows out downward from the outlet 42 and then rises, part of which rises beyond the tip of the steam exhaust nozzle 40, and another part of the steam flows along the bottom wall 41a of the steam exhaust nozzle 40. Ascend from the tip. Therefore, it is possible to prevent the steam from rising along the front surface of the upper portion of the dishwasher 20 as in the conventional case, and thus it is possible to prevent the surface from being wet by the steam. Further, since the bottom wall 41a of the projecting portion 41 of the steam exhaust nozzle 40 is inclined upward, the steam from the outlet 42 is discharged obliquely downward, so compared with the case where it is discharged right below. Can be ejected further forward.

When the door 30 is opened after the completion of the drying operation, when the door 30 is in the horizontal state as shown by the two-dot broken line in FIG. 1 (or as shown in FIG. 4), the steam exhaust nozzle 4
The tip of 0 points downward. Therefore, the water droplets that have condensed and adhered to the inner surface of the steam exhaust nozzle 40 flow along the inner surface toward the lower side, that is, the tip side by their own weight, and collect at the tip portion of the steam exhaust nozzle 40. At this time, the guide wall 4
The water droplets that have reached the rear portion (base end side) of No. 3 are guided by the guide wall 43 (along the guide wall) and flow to the front portion of the guide wall 43, so that they can be prevented from flowing out from the outlet 42. it can. Therefore, it is possible to prevent water droplets from falling on the floor.

Further, when the door in the open state (horizontal state) is closed, the water accumulated at the tip of the steam exhaust nozzle 40 flows along the inner surface toward the base end side, and the base of the steam exhaust nozzle 40 is closed. It flows down from the end opening 40a. At this time, the water droplets that have reached the front portion (tip end side) of the guide wall 43 are guided by the guide wall 43 (along the guide wall) and flow to the rear portion of the guide wall 43, so that they do not flow out from the outlet 42. Can be prevented. Therefore, it is possible to prevent water droplets from falling on the floor. In addition, the door 30 described above
When closing, the water droplets that have reached the front portion (tip end side) of the guide wall 43 flow smoothly along the tapered inclination of the guide wall, so that they do not get over the front guide wall 43. Therefore, it can be prevented from flowing out from the outlet 42.

In the above-described embodiment, as shown in FIGS. 5 and 6, when the door 30 is opened to be in the horizontal state (see FIG. 6), the water in the steam outlet pipe 33 is at the upper end side ( It is preferable to provide a weir 33a on the inner wall of the steam outlet pipe 33 to prevent the weir 33a from flowing out from one end side). According to this, when the door 30 is opened and brought into a horizontal state after the completion of the drying operation, the steam outlet pipe 33 is also horizontal, and the inner wall front portion of the steam outlet pipe 33 is on the lower side. At this time, water droplets (water) W attached to the inner surface of the steam outlet pipe 33 by dew condensation
Flows toward the one end side (toward the steam exhaust nozzle 40) along the inner wall by the momentum of opening the door 30 (in reaction).
It is dammed by the weir 33a provided on the inner wall. Therefore, it is possible to prevent the water droplets attached to the inner wall surface of the steam outlet pipe 33 from flowing into the steam exhaust nozzle 40.

Further, in the above-mentioned embodiment, the front wall of the guide wall 43 may be formed so that the left side (or right side) thereof is projected more than the right side (or left side),
Further, it may be formed in a semi-circular shape. Also, the guide wall 43
The rear wall may also be formed to be tapered like the front wall.

[Brief description of drawings]

FIG. 1 is a cross-sectional view schematically showing the structure of a dishwasher according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing an upper portion of a door including the steam exhaust nozzle shown in FIG.

FIG. 3 is an enlarged vertical sectional view showing an upper portion of a door including the steam exhaust nozzle shown in FIG.

FIG. 4 is an enlarged cross-sectional view showing an open state of the door shown in FIG.

5 is an enlarged cross-sectional view showing an upper part of a door when a weir is provided inside the steam outlet pipe 33 shown in FIG.

6 is an enlarged cross-sectional view showing an open state of the door shown in FIG.

[Explanation of symbols]

10 ... Household system kitchen, 20 ... Dishwasher, 2
1 ... Housing body, 22 ... Washing cabinet, 22a ... Opening, 2
3 ... Pump, 24 ... Tableware basket, 25, 26 ... Upper and lower washing nozzles, 30 ... Door, 31 ... Inner panel, 32 ...
Outer panel, 33 ... Steam outlet pipe, 40 ... Steam exhaust nozzle, 41 ... Projection portion, 41a ... Bottom wall, 42 ... Outlet port, 4
3 ... Guide wall, 50 ... Blower.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Kodama             16 Hoshizaki, 3rd South Building, Sakaemachi, Toyoake City, Aichi Prefecture             Electric Co., Ltd. (72) Inventor Shuji Kurahashi             16 Hoshizaki, 3rd South Building, Sakaemachi, Toyoake City, Aichi Prefecture             Electric Co., Ltd. F term (reference) 3B082 BE00 BE01

Claims (3)

[Claims] 1. A washing cabinet in which dishes are put into an interior through an opening provided in a front portion for washing, and a door which opens and closes the opening by rotatably attaching a lower end portion to a lower portion of the opening provided in the washing cabinet. In a dishwasher equipped with a steam exhaust nozzle provided on the upper part of the door for discharging steam generated in the washing cabinet to the outside, the steam exhaust nozzle is formed in a tubular shape with a closed front end and a closed base end. Is attached to the door by projecting the tip from the front surface of the door, and an outlet is provided on the bottom wall of the protruding portion of the vapor exhaust nozzle away from the tip, and a guide wall is provided on the inner peripheral edge of the outlet. A dishwasher characterized by being installed upright. 2. The dishwasher according to claim 1, wherein the front portion of the guide wall is formed so as to be tapered toward the front. 3. A steam outlet pipe, one end of which is connected to a base end opening of the steam exhaust nozzle and the other end of which is opened to the lower inside of the cleaning chamber, is provided on the door, and when the door is opened horizontally, 2. A weir is provided on the inner wall of the steam outlet pipe to prevent the condensed water in the steam outlet pipe from flowing out from one end.
Alternatively, the dishwasher according to claim 2.