JPH034828A - Tableware washing machine - Google Patents

Abstract

PURPOSE:To eliminate the need of a door lock mechanism and packing for preventing water leakage, etc., by providing a guide rail on both the left and the right sides of an opening part, and engaging a slide door thereto so as to be slidable along the opening part, and also, in the roughly orthogonal direction. CONSTITUTION:A door 18 is provided integrally with a handle 18a, formed in a circular arc shape in the same way as a shielding plate 16, fitted to a pair of guide rails 31, 32 provided continuously on both the left and the right sides of an opening part A of a body 10, that is, on the front edge of both side walls 12, 13 so as to be slidable along the opening part on both sides, and also, so as to be engageable in the direction being roughly orthogonal to the opening part, and brought to up-and-down motion with the handle 18a. The guide rails 31, 32 are formed so that its cross-section becomes a U-shape, a labyrinth is formed by both the left and the right sides of the door 18, and a water guiding passage P which communicates with a tank 17 in the lower end is formed. On the upper end of a front wall 11, a pan 34 is provided up to both ends of the left and the right, and water which leaks out of the fitting part of both the guide rails and the door and flows down through the surface of the door 18, and vapor water discharged from a clearance between the door 18 and a cover 19 are received, and flow into the tank 17.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a dishwasher, and particularly to a door structure for opening and closing an opening through which tableware and the like are taken in and taken out.

[Conventional technology]

In conventional dishwashers, a door that opens and closes an opening provided in the main body that has a cleaning nozzle inside is rotatable at its lower end in the front-back or up-down direction to open and close the front opening. Front-opening door structure (for example,
5-79971) and an upward-opening door structure that opens and closes the upper opening (for example, Utility Model Publication No. 59-10855).
(see Publication No. 7).

[Problem to be solved by the invention]

By the way, in the conventional door structure described above, fl)
There is a risk that the door may open due to pressure from inside (internal pressure increase generated during cleaning, water pressure, etc.), and a door locking mechanism is required. (2) The door only contacts the opening at its periphery, and in order to accurately prevent water from leaking from this contact area, it is necessary to install water leakage prevention such as packing around the entire periphery of the door. A means is necessary. (3) Since the door is opened by tilting forward or upward around the lower end, a space equal to the size of the door is required in front of or above the main body;
Requires large installation space. (4) When the door is opened, water adhering to the periphery and inner wall of the door scatters due to centrifugal force and wets the surrounding area. I have my own problem.

The present invention was made to address the above-mentioned problems, and does not require a door lock mechanism or water leakage prevention gasket, prevents water from leaking into the surrounding area, and allows the door to be opened and closed without protruding from the main body, allowing for a small space. The aim is to provide a dishwasher that can be installed in

[Means to solve the problem]

In order to achieve the above-mentioned object, in the dishwasher of the present invention, guide rails are continuously provided on both left and right sides of the opening in the main body, which has an opening at the front or upper side and has a cleaning nozzle inside. A slide door was fitted to both guide rails so that it could slide along the opening on both sides thereof and be engageable in a direction substantially perpendicular to the opening.

Further, a water guide path communicating with the inside of the main body at the lower end was formed by both guide rails and both sides of the sliding door fitted thereto. Furthermore, a saucer is provided at the lower end of the opening in the main body to catch water leaking from the fitting portions between both guide rails and both sides of the sliding door and to flow it into the main body.

[Action/effect of the invention]

In the dishwasher according to the present invention, the sliding door is fitted with guide rails on both sides thereof, and is configured to slide along the opening and engage in a direction substantially perpendicular to the opening. , the sliding door will not be opened due to increased internal pressure or water pressure that occurs during cleaning, no door locking mechanism is required, and centrifugal force does not act when the door is opened.
Water attached to the door will not be scattered around. In addition, a watertight structure (labyrinth) is formed at the fitting portion of the sliding door and the guide rail to prevent water leakage, so there is no need for a gasket for preventing water leakage, and it can be implemented at low cost. Moreover, since the sliding door opens and closes along the outer shell of the main unit, the sliding door does not protrude from the main unit, and there is no need for a space in front of or above the main unit for the door, so it can be installed in a small space. can do.

In addition, by forming a water guide path that communicates inside the main body at the lower end with both guide rails and both sides of the sliding door that fits into the guide rails, water that is about to leak outside through the fitting part is removed from the main body. This can effectively prevent water from leaking to the outside. Moreover, the water flowing through the water guideway can wash away dirt, dust, etc. that has adhered to the inside of the guide rail, which is not only sanitary.
Smooth sliding of the door is always ensured. Furthermore, the water remaining in the water guiding path also functions as a lubricant that facilitates opening and closing of the sliding door, allowing the sliding door to open and close smoothly.

Furthermore, by providing a saucer at the lower end of the opening in the main body to catch water leaking from the fitting parts between both guide rails and both sides of the sliding door and letting it flow into the main body, it is possible to prevent water from leaking out from the fitting parts. Even when the water is wet, it can catch all of the water and drain it into the main body, and the water will not leak into the surrounding area and will not wet the floor.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In the dishwasher according to the present invention shown in FIGS. 1 to 3, a main body 10 has a front wall 1) 9 side walls 12, 13. back wall 1
4 and a bottom wall 15, an arc-shaped shielding plate 16 and a tank 17, and an opening A that is opened and closed by a sliding door (hereinafter simply referred to as a door) 18 at the front upper part.
is formed, and an opening covered by a cover 19 is formed at the rear upper part. In addition, inside the main body 10, a rack 2 is provided in a cleaning chamber R1 that is opened and closed by a door 18.
Washing nozzles 22 and 23 for spraying washing water from above and below onto the tableware 21 accommodated together with the rewashing nozzles 22 and 23 are provided in the tank 17.
Washing water in the link 17 is supplied under pressure by a circulating supply device 24 provided in the machine room R2 formed between the bottom wall 15 and the bottom wall 15. In addition to the circulating supply device 24, a drainage device 25 is provided in the machine room R2, and is operated by various parts/members (not shown) and an operation switch 26 provided on the control device (front wall 1). A circulating supply device 24, a device for controlling the operation of a drainage device 25, etc. in a predetermined cleaning cycle are housed therein.

The arc-shaped shielding plate 16 is fixed to both side walls 12 and 13 at both left and right ends, supports the cleaning nozzle 22, and is attached to the upper rear ends of the side walls 12 and 13, the upper part of the rear wall 14, and the cover 1.
9 forms a space R3. The space R3 functions as a housing space for accommodating the door 18 when opened, and also directs a portion of the air in the cleaning chamber R1, which expands when high-temperature cleaning water is jetted from the cleaning nozzles 22 and 23, to the outside. It has the function of an exhaust passage for discharging air. A portion of the expanded air is discharged to the outside through a ventilation hole 19a provided in the cover 19, and is also formed between the tip of the cover 19 and the rear end (upper end in the figure) of the door 18 in the closed state. The water vapor (water droplets) accompanying this is discharged to the outside through the gap, and is prevented from being discharged to the outside by a protrusion 19b provided on the cover 19.

The tank 17 has its peripheral edge connected to the front wall 1) 9 and both side walls 12.1.
3 and the rear wall 14, supports the cleaning nozzle 23, and can accommodate the required amount of cleaning water.

Further, a natural drainage pipe 27 is provided in the tank 17 in parallel to the drainage device 25, and an overflow pipe 28 is connected to the top of this drainage pipe 27.

The door 18 integrally has a handle 18a, which is formed in an arc shape similarly to the shielding plate 16. A pair of guide rails 31.3 each successively provided
2 so as to be slidable along the opening on both sides and engageable in a direction substantially perpendicular to the opening. this door 1
8 can be opened and closed by holding the handle 18a and moving it up and down (rotating). At that time, it slides inside both guide rails 31 and 32 and on the top surface of the arc-shaped shielding plate 16. Therefore, it does not protrude from the main body 10. The closed position of the door 18 is defined by one end of the door 18 (lower end in the drawing) coming into contact with the front end 17a of the tank 17, and at that time, the other end (upper end in the drawing) 18, c of the door 18 contacts the front end 17a of the tank 17. overlaps the front end of the arc-shaped shielding plate 16 by a predetermined amount, and the open position is
8a comes into contact with the front end of the cover 19, and engagement protrusions 31a and 32a are formed at the upper ends of both guide rails 31 and 32 to prevent the cover 19 from being significantly deformed upwards at this time. . Further, the door 18 can be removed from both guide rails 31 and 32 by rotating rearward with the cover 19 removed, and can be removed from the main body 10 by lifting it further upward. .

The cover 19 has its periphery excluding its front edge on both side walls 12.13.
The three screws 33 are connected to the upper edge of the rear wall 14.
It is removably attached to both side walls 12.13 and the rear wall lA, and as mentioned above, it functions as a storage space for accommodating the door 18 when opened and a part of the air in the cleaning chamber R1 is released to the outside. Space R that functions as an exhaust passage
3 and a stopper that defines the opening position of the door 18.

As shown in detail in FIG. 4, taking the guide rail 31 side as an example, each guide rail 31, 32 is formed into a U-shaped cross section, and a labyrinth is formed by the left and right sides of the door 18. , tank 17 of main body 10 at the lower end
A water guide path P communicating with is formed. Also, main body 1
A saucer 34 is formed at the lower end of the opening A at 0, that is, at the upper end of the front wall 1). The saucer 34 is provided continuously to both the left and right ends, and is connected to both guide rails 31°32.
Water that leaks from the fitting part between the door 18 and the door 18 and flows down the surface of the door 18, and water vapor that is discharged from the gap between the door 18 and the cover 19 becomes water droplets on the surface of the door 18 and flows down. The water is allowed to flow into the tank 17.

In this embodiment configured as described above, the cleaning chamber R1
In addition to storing the tableware 21 together with the rack 20,
Supply a predetermined amount of cleaning water into the tank 17 and press the operation switch 2.
6 to start the washing cycle, the washing water in the tank 17 is supplied under pressure by the circulating supply device 24 for a set time and is sprayed onto the tableware 21 from both washing nozzles 22 and 23, thereby washing the tableware 21. Note that after the set time has elapsed, the operation of the circulation supply device 24 is stopped, and at the same time, the drainage device 25 is activated to discharge the wash water in the tank 17 to the outside.

A portion of the cleaning water sprayed from both cleaning nozzles 22 and 23 is also sprayed onto the door 18, flows down along the back surface of the door 18, returns to the tank 17, and is also sprayed onto the door 18.
and the fitting gap between both guide rails 31 and 32 and the overlapping gap between the door 18 and the shielding plate 16. By the way, door 18
Water that has entered the fitting gap between the door 18 and both guide rails 31, 32 is suppressed from flowing out to the outside by the labyrinth formed by the fitting of the door 18 and both guide rails 31, 32, and is prevented from flowing outside through the water guiding iP. It flows to the lower ends of the rails 31 and 32 and returns to the tank 17 through a small gap between the lower end of the door 18 and the front end 17a of the tank 17. Further, water that has entered the overlapping gap between the door 18 and the shielding plate 16 flows down the upper surface of the shielding plate 16 and flows down from the lower end of the tank 17.
Drip inside and return.

In addition, if the temperature in the cleaning chamber R1 is low in the early stage of cleaning, and the cleaning water in the tank 17 is high temperature, the air in the cleaning chamber R1 will be filled with high-temperature cleaning water at the moment it is sprayed from both cleaning nozzles 22 and 23. It gets warmed up and expands into air, causing an increase in internal pressure. This increase in internal pressure is eliminated by a part of the air in the cleaning chamber R1 flowing out through the exhaust passage formed between the shielding plate 16 and the cover 19;
8, the door 18 is pushed outward, and the door 18 and the outer portions of the guide rails 31, 32 come into pressure contact in a direction substantially perpendicular to the sliding direction. Therefore, it goes without saying that the door 18 will not be opened, and the sealing performance between the door 18 and both guide rails 31 and 32 is improved. This phenomenon can also be obtained by the internal water pressure acting on the door 18 (the pressure of the washing water sprayed from both washing nozzles 22 and 23).

In summary, in this embodiment, the door 18 fits into the guide rails 31, 32 on both sides, and the opening A
Since the door 18 is configured to slide along the opening A and engage in a direction substantially perpendicular to the opening A, the door 18 will not be opened due to internal pressure generated during cleaning, and a door lock mechanism is not required. Further, when the door is opened, no centrifugal force is applied, and water adhering to the door 18 is not scattered around. Additionally, a labyrinth is formed at the fitting portion between the door 18 and the guide rails 31 and 32, preventing water leakage.
No need for water leakage prevention gaskets, etc., and it can be implemented at low cost. Moreover, since the door 18 is opened and closed along the shielding plate 16 provided above the main body 10, that is, along the outer shell, the door 18 is opened and closed along the shielding plate 16 provided above the main body 10.
The door 18 does not protrude from the main body 10, does not require a space for the door 18 in front of or above the main body 10, and can be installed in a small space.

In addition, since a water guide path P communicating with the inside of the main body 10 at the lower end is formed by both guide rails 31 and 32 and both sides of the door 18 that fit therewith, there is no possibility that the water will leak outside through the fitting part. water can be guided into the tank 17 of the main body 10, and water leakage to the outside can be effectively prevented.

Moreover, the water flowing in the water guideway P causes the guide rail 3 to
Dirt, dust, etc. adhering to the inside of the door 1 and 32 can be washed away, which is not only sanitary but also ensures smooth sliding of the door 18 at all times. In addition, the water remaining in the water guide path P also functions as a lubricant that facilitates opening and closing of the door 18.
The door 18 can be opened and closed smoothly.

Furthermore, the lower end of the opening A in the main body 10, that is, the front plate 1
) at the upper end of the door 18, which is formed by water leaking from the fitting parts of both guide rails 31, 32 and both sides of the door 18, and water vapor discharged from between the upper end of the door 18 and the tip of the cover 19. Since a saucer 34 is provided to catch the water flowing down the surface and flow it into the tank 1 of the main body 10, the water will not leak to the surrounding area and will not wet the floor surface.

5 to 8 show modified examples of the water guideway P, and in the water guideway P shown in FIG. 5, the passage area is increased by changing the cross-sectional shape of the guide rail 31. In addition, in the water guideway P shown in FIGS. 6 and 7, the passage area is increased by changing the cross-sectional shape of the guide rail 31 and the shape of the end of the door. In the water guiding path P shown in the figure, by changing the cross-sectional shape of the guide rail 31 and changing the amount of fitting (overlapping amount) between the guide rail 31 and the door 18, the passage area is increased and the sliding property of the door 18 is improved. I hope it gets better.

In addition, when adopting the water guideway P shown in Fig. 8,
Since there is a risk that water may overflow from the water guiding path P onto the surface of the door 18, it is desirable to arrange the receiving trays 34 in parallel.

FIG. 9 shows another dishwasher in which the present invention is implemented, and in this dishwasher, a bendable door (made by connecting short members) 1) 8 This door 1) 8 is continuous on both the left and right sides of the opening A (or may be an opening provided above the main body) provided in the front of the box-shaped main body 1) 0. It is slidably fitted on both sides to a pair of guide rails 131 and 132 provided so that it can be opened and closed along the outer shell, that is, the upward slope of the main body 1)0. The rest of the structure is substantially the same as the dishwasher of the above embodiment.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing an embodiment of the dishwasher according to the present invention, Fig. 2 is a front view thereof, Fig. 3 is a perspective view thereof, and Fig. 4 shows a fitting portion between a guide rail and a door. Enlarged sectional view, 5th
8 are enlarged sectional views showing modified examples of the fitting portion between the guide rail and the door, and FIG. 9 is a perspective view showing another embodiment of the dishwasher according to the present invention. Explanation of symbols 10...Main body, 16 18...Door (slide...Cleaning nozzle, 31°34...Saucer, A...Conduit....Shielding plate (outer shell), Door), 22 .23・ 32... Guide rail, ・Opening, P... Water guide Figure 2 Q

Claims (1)

[Scope of Claims] (1) A main body having an opening at the front or upper side and having a cleaning nozzle inside, and a pair of guide rails provided continuously on both left and right sides of the opening in the main body, A slide door is provided on both sides of both guide rails to be slidable along the opening and engageable in a direction substantially perpendicular to the opening, and to be opened and closed along the outer shell of the main body. Dishwasher. (2) The dishwasher according to claim 1, wherein a water guide path communicating with the inside of the main body is formed at a lower end by both the guide rails and both sides of the sliding door fitted thereto. (3) A saucer is provided at the lower end of the opening in the main body to catch water leaking from the fitting portions of both guide rails and both sides of the sliding door and to flow it into the main body.
Dishwasher as listed.