JP3074552B2 - Cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for cleaning an object to be cleaned by using jet water.

[0002]

2. Description of the Related Art Conventionally, there is a well-known dishwasher in which dishes are stored in a main body, and washing water is sprayed into the main body to wash the dishes.
However, in this dishwasher, since the washing water stored in the washing tank is circulated, it is inevitable that the washing water becomes dirty and the washing effect is reduced. Therefore, as an improvement, the present applicant has proposed a dishwasher described in Japanese Patent Application No. 5-181745.

[0003] In this method, a tableware having an opening on an upper surface of a main body is put into an internal washing space through the opening, and fresh water supplied from a water source is jetted into the washing space as washing water to wash the tableware. Then, an air stream is jetted to blow off water drops adhering to the tableware and dry them.

[0004]

In the above-mentioned conventional dishwasher, water droplets attached to tableware are blown off by jetting air from a nozzle for air and using an air flow. There is a point.

[0005] (1) If the distance from the air nozzle to the dishes is large, the wind speed attenuates to such a level that water droplets attached to the dishes cannot be blown off before the air flow reaches the dishes. However, if the air nozzle protrudes into the washing space, handling of tableware during washing is hindered. (2) In order to blow off water droplets attached to tableware, it is necessary that the force applied by the air flow to the water droplets overcomes the force due to surface tension acting between the water droplets and the tableware. However, when a high-speed air flow is blown out from the air nozzle, the wind speed is 2 to 6 times.
The noise is proportional to the power, making it difficult to use at midnight. If the blowing air speed is reduced, it takes time to dry.

(3) Tableware has various shapes. When an air flow is supplied from a flat surface to the inner surface of a hemispherical tableware such as a bowl or a bowl, the air flow reaches the bottom of the tableware. However, it attenuates to a wind speed at which water drops adhering to the tableware surface cannot be blown off. (4) Since the air nozzle faces the cleaning space, dirt may adhere. Although dirt adhering to the surface can be cleaned, dirt that has entered the interior through the nozzle hole is difficult to remove, and if left as it is, it becomes dirty.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can maintain the air nozzle clean, without noise, with high drainage efficiency, and without hindering washing. It is an object of the present invention to provide a cleaning device as described above.

[0008]

According to a first aspect of the present invention, there is provided a cleaning apparatus having an air nozzle for supplying an air flow to an object to be cleaned washed with cleaning water, wherein the air nozzle is a cylinder. It is mounted via a drive device on the cleaning tank wall that forms a cleaning space by forming a nozzle, and the air nozzle is used when
It moves forward by the pressure of the air flow, and when not in use,
It is designed to retreat .

Further, the cleaning device according to the second aspect of the present invention provides the cleaning device according to the first aspect.
In the light of what is intended with the wind speed adjustment mechanism for the wind speed of the air flow supplied from the air nozzle in a variable.

[0010] Further, the cleaning apparatus according to the third aspect of the present invention provides the cleaning apparatus according to the first aspect.
In the case of the above, the air blowing surface of the air nozzle is formed into a curved surface.

Further, the cleaning apparatus according to the fourth aspect of the present invention provides the cleaning apparatus according to the first aspect.
In this case, the air blowing direction of the air nozzle is set radially.

Further, the cleaning device according to the fifth aspect of the present invention provides the cleaning device according to the first aspect.
In the case of light , the air nozzle is a cylinder with open ends.
And a head having a nozzle hole which is detachably engaged with an end face of the nozzle body on the cleaning space side and has a nozzle hole for jetting an air flow.

[0013]

According to the first aspect of the present invention, an air nozzle is mounted on a cleaning tank wall, and the nozzle is advanced by the pressure of an air flow to drive the nozzle.
Since you so that to retract the moving mechanism, the air nozzle during the draining is advanced to the cleaning space, when cleaning is retracted.

Further, in the second invention, since the wind speed of the air flow from the air nozzle is made variable, the user can select the wind speed of the air flow according to the situation.

In the third aspect of the present invention, since the air blowing surface of the air nozzle is formed as a curved surface, the air nozzle approximates the inner surface of a curved surface such as a bowl or a bowl, and has a surface when it comes into contact with tableware or the like. It won't hurt tableware etc.

In the fourth aspect of the present invention, since the air blowing direction of the air nozzle is set to be radial, the air flow blows water droplets from the radial direction to the inner surface of the bowl such as a bowl or a bowl to the end face of the tableware (10). It is sprayed in the direction.

Further, in the fifth invention, washing of the tubular nozzle body across an air nozzle is opened, the nozzle body
Since the head is detachably locked to the end face on the side of the cleaning space , the head can be cleaned by removing the head.

[0018]

【Example】

Embodiment 1 FIG. 1 to 10 show one embodiment of the first to fifth inventions of the present invention. FIG. 1 is a perspective view showing the inside of a dishwasher, and FIG. 2 is a partially broken perspective view of an inner tank and an outer tank. FIG. 3, FIG. 3 is a transverse sectional view of FIG. 2, FIG. 4 is a longitudinal sectional view of an inner tank and an outer tank part showing a circulating spray flow, and FIG. 5 is a longitudinal sectional view of an inner tank and an outer tank part showing a cleaning state. 6 is an explanatory view of the operation of the main nozzle and the sub-nozzle, FIG. 7 is a configuration diagram of the air nozzle portion, FIG. 8 is a longitudinal sectional view of the air nozzle, FIG. 9 is an enlarged perspective view of the adjusting plate, and FIG. The same reference numerals in the figures denote the same parts.

1 to 6, (1) is a main body of a dishwasher, (2) is an opening formed in an upper portion of the main body (1), and (3) is an edge portion of the main body (1). Foldable lid that is pivotally attached to the upper surface to open and close the opening (2), (4) is an inner tank that is housed in the main body (1) and has a washing space (5) formed inside, and (6) is an inner tank In the outer tank provided outside of (4), a spray channel (7) is formed between the outer tank and the inner tank (4), and a curved surface (6a) is formed at a bottom corner.

The inner tank (4) is provided at its bottom with a suction port (4a) communicating with the spray channel (7), and the inner wall is provided with a window hole (4b) as a blow-out port. 4b) is provided with a current plate (4c) inclined downward. Further, a fin (4d) that is inclined downward projects from one of the inner walls of the inner tank (4), and a notch into which the air nozzle (14) described later is loosely fitted is provided on the other of the inner wall.
(4e) is formed. (8) is an upper plate that closes upper edges of the inner tank (4) and the outer tank (6) and forms an opening (2).

(9) is a main nozzle mounted on one side of the inner surface of the outer tub (6), and the washing space (5) passes through a hole provided in the inner tub (4).
A water film-like washing water (11) is sprayed on the tableware (10) held by hand. (12) is a similar sub-nozzle arranged above the main nozzle (9), (13) is mounted on the other side of the inner surface of the outer tank (6) and faces the main nozzle (9) and the sub-nozzle (12). Nozzle for thread bottom provided in (14), washing space (5) through notch (4e) of inner tank (4)
A nozzle for air that protrudes into and blows out air for draining, (15)
(15) is a cleaning sensor that emits and receives light beams that are provided in the outer tank (6) to face each other and that crosses the inner tank (4), and detects an object that blocks the light rays, and (16) and (16) are also drainers. In the sensor, the cleaning sensors (15) and (15) are arranged near one side of the opening (2), and the drainage sensors (16) and (16) are similarly arranged near the other side.

(17) is a water storage tank installed in the main body (1) for storing fresh water such as a water pipe, and its inner wall is formed with a wave return (not shown) having irregularities for suppressing the water surface from oscillating. Have been. (18) is a base installed on the bottom of the main body (1) and inclined low with respect to the front, (19) is installed on the base (18) and the suction side is connected to the water storage tank (17) by piping, and the discharge side is each nozzle (9) Pressurizing pump connected to (12) (13), (2
(0) is installed on the base (18) and the discharge side is a nozzle for air (14)
This is a blower connected to the hose by a hose (21) to send air under pressure.

7 to 10, (25) is a blower (20)
A control device connected to the fan to control the rotation speed of the blower (20);
(26) is a regulator connected to the control device (25) to set the rotation speed of the blower (20), and (27) is a nozzle body constituting the air nozzle (14), which is inserted into the outer tank (6). Cylindrical part (27a) and washing space
(5) It consists of a trumpet-shaped part (27b) protruding to the side, and a cylindrical part (27
A spring receiver (28) is screwed into the end of a). (29)
Is a compression coil spring provided between the spring receiver (28) and the outer tub (6).

A head (30) covers the opening of the flared portion (27b) of the nozzle body (14). The head is formed in a hemispherical surface and has a plurality of nozzle holes (30a). The formed claw (30b) is engaged with the opening edge of the trumpet-like portion (27b). (31) is an adjustment plate rotatably supported inside the head (30), has an adjustment hole (31a) that overlaps with the nozzle hole (30a), and the center is the head
A knob (31b) is formed to protrude from (30).

Next, the operation of the cleaning apparatus configured as described above will be described. When the washing device is not used, the opening (2) is closed by the lid (3), thereby preventing the tableware (10) from falling and expanding the kitchen work space. At the time of use, as shown in FIG. 1, the lid (3) is opened and folded in two to stand, thereby preventing splashing water from colliding with the tableware (10) during washing. It should be noted that if the lid (3) is moved further outward from the position shown in FIG. 1, cleaning becomes easier.

The opening (2) opened by the lid (3)
Then, the tableware (10) held by hand is put into the washing space (5), and washing is started. First, the tableware (10) is inserted into the washing space (5) from just before the opening (2), and when the light beam of the washing sensor (15) is blocked, the washing sensor (15) operates and the pressurizing pump ( 19)
Is driven. With this, the washing water is pressurized to a level that can remove dirt attached to the tableware (10), and the main nozzle (9),
It is sprayed from the auxiliary nozzle (12) and the yarn bottom nozzle (13).

As shown in FIGS. 4 and 5, the washing water (11) from the main nozzle (9) collides with the dishes (10) and the inner tank (4) to generate spray. This spray is guided to the suction port (4a) by the kinetic energy of the washing water (11). At this time, the flow passage area of the suction port (4a) is set wider than the other flow passage portions, and the curved surface portion (6a) of the corner of the outer tank (6) is provided, so that spraying is performed. Is collected efficiently. The collected spray goes up the spray channel (7), and the washing water (11)
Window hole (4b) provided above the position where it collides with (10)
Rectified by the rectifier plate (4c), stably washing space
(5) Squirted into the inside.

As a result, the spray generated in the cleaning space (5) is stably guided from the cleaning space (5) into the spray channel (7), adheres to the wall surface of the spray channel (7), and air Only the flow circulates,
Spray out of the washing space (5) is reduced. Fins (4d)
Is provided above the position where the washing water (11) collides with the inner tank (4), so that the water scattered by the collision is prevented from jumping. Further, although the window hole (4b) is provided above the inner tank (4), a window hole communicating with the spray flow path (7) may be added to the inner wall of the inner tank (4), so that the scattered water Can escape to the spray channel (7).

The sub-nozzle (12) and the yarn bottom nozzle (13) eject a jet at a lower pressure than the main nozzle (9) by an orifice (not shown) provided between the sub-nozzle (12) and the pressurizing pump (19). . The jet (23) from the sub-nozzle (12) is located above the high-pressure washing water (11) from the main nozzle (9) as shown in FIG. ) Is in the form of a water film, so that water that collides with the tableware (10) and is scattered is shielded, and water is prevented from scattered to the outside from the opening (2).

At the same time, the jet (23) from the sub-nozzle (12)
Tableware (10) above the wash water (11) from the main nozzle (9)
The jet (23), which has lost energy and collided with the water, falls downward. The washing water (11) from the main nozzle (9) collides with the tableware (10) and jumps, but since the falling water flow is suppressed,
Water is prevented from splashing from the opening (2) to the outside.

Further, with the washing water from the yarn bottom nozzle (13), the inside of the bowl can be washed with the main nozzle (9) and the yarn bottom can be washed with the washing water from the yarn bottom nozzle (13). At this time,
The water pressure of the washing water from the yarn bottom nozzle (13) is reduced to such an extent that jumping due to collision does not occur.

In this way, when washing of the tableware (10) is completed, the tableware (10) is moved horizontally while holding the tableware (10),
When the beam of the drain sensor (16) is blocked, the drain sensor (16) operates to drive the blower (20). With this, blower (20)
Pumps air, and the air passes through the hose (21) and is sent to the air nozzle (14). At this time, the control device (25) controls the rotation speed of the blower (20) according to the setting of the adjuster (26), and adjusts the wind speed of the air flow.

The air nozzle (14) is used when not in use as shown in FIG.
As shown in (A), it is at the retracted position by the compression coil spring (29), and when air is fed by pressure, it moves forward against the force of the compression coil spring (29) and projects into the cleaning space (5). , Nozzle hole (30
An air flow is blown out from a). Then, as shown in FIG. 10B, the water droplets (32) attached to the tableware (10) are blown off and dried. Thus, the washing and draining operations are completed.

In this way, the air nozzle (14) protrudes near the tableware (10) at the time of draining, drains efficiently even with a small amount of air, and retreats during washing to enter the washing space (5). On the other hand, the amount of protrusion can be reduced, so that the tableware (10) is not obstructed during washing.

Further, since the wind speed of the air flow is changed by the adjuster (26), the wind speed can be arbitrarily selected by the user, and the noise can be reduced by lowering the blowing wind speed at the time of use at midnight or the like. In the daytime, the drying performance can be selected according to the situation, such as increasing the blowing air speed to shorten the drying time.

The blowing wind speed can also be adjusted by the adjusting plate (31). That is, the adjustment plate (31) is provided by the knob (31b).
When is rotated, the degree of polymerization between the nozzle hole (30a) and the adjustment hole (31a) changes, and the opening area of the nozzle hole (30a) changes, so that the blowing wind speed can be adjusted.

Since the surface of the head (30) of the air nozzle (14) is formed in a hemispherical surface, the air flow can reach the bottom even on the inner surface of a bowl, a bowl, etc. It is possible to blow off water droplets (32) adhering to the surface. Moreover, even if it comes into contact with the tableware (10), the tableware (10) is less likely to be damaged. In addition, the manufacturing cost is reduced. However, the surface of the head (30) is not limited to a hemisphere, and a curved surface is sufficiently useful.

Further, since the direction of air flow from the nozzle hole (30a) is radial, water drops attached to the tableware (10) are blown off radially in a directional manner, so that the drying efficiency is high. In the embodiment, the air nozzle (14) is advanced by the pressure of the air flow and is retracted by the force of the compression coil spring (29) .However, the air nozzle (14) may be advanced and retracted by using a motor. The response can be made faster and the moving speed can be made variable.

Since the head (30) can be removed from the nozzle body (27), cleaning is easy and the air nozzle (1)
4) The inner and outer surfaces can be kept clean, and the generation of odor and mold can be prevented.

Embodiment 2 FIG. FIG. 11 is a side view of an air nozzle portion showing another embodiment of the second invention of the present invention. In this embodiment, the nozzle hole (3) shown in FIG.
0a) and a pressure loss regulator (35) similar to the mechanism for adjusting the degree of polymerization between the adjustment hole (31a) and the knob (35a) from the outside of the hose (21). The wind speed is adjusted by changing it. Its function is the same as that already described.

In each of the above embodiments, the tableware (10) is described as being washed, but the present invention is not limited to this, and it can be used for washing, for example, a filter of a ventilation fan. In the industrial field, it can be widely applied as a cleaning device for degreasing a pressed product, removing cutting powder, and the like.

[0042]

As described above, in the first aspect of the present invention, the air nozzle is mounted on the wall of the cleaning tank so as to be able to move forward and backward, and the nozzle is moved forward by the pressure of the air flow.
Since in so that you to retreat, when the air nozzle is draining is advanced to the cleaning space, also it can be efficiently drained by the wind a smaller amount in the vicinity of the dishware, during the cleaning Kai take the retreat to tableware eagle There is an effect that can be kept out of the way.

Also, in the second aspect, the wind speed of the air flow from the air nozzle is variable, so that the user can arbitrarily select the wind speed of the air flow. By doing so, there is an effect that generation of noise can be reduced.

In the third aspect of the present invention, since the air blowing surface of the air nozzle is formed into a curved surface, the air nozzle can be approximated to a curved inner surface such as a bowl or a bowl, so that the air flow can reach the bottom of the curved inner surface. There is an effect that water drops can be blown off. Further, even when the object to be cleaned comes into contact with the object to be cleaned, it is possible to reduce the possibility of damaging the object.

In the fourth aspect, the air blowing direction of the air nozzle is set to be radial, so that the air flow is
Drops of water from the radial direction on the inner surface of a bowl such as a bowl
It is blown in the direction of blowing off to the end face of 0), and there is an effect that the air flow can be supplied to a wider area to the inner surface of the tableware to increase the drying efficiency.

In the fifth invention, the air nozzle is provided at both ends.
And a cleaning space for this nozzle body
Since the head is detachably locked to the end face on the side , the head can be removed and the state can be cleaned, so that the inner and outer surfaces of the air nozzle can be kept clean.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the inside of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of an inner tank and an outer tank of FIG. 1;

FIG. 3 is a transverse sectional view of FIG. 2;

FIG. 4 is a vertical sectional view of an inner tank and an outer tank showing a circulating spray flow according to the first embodiment of the present invention.

FIG. 5 is a vertical sectional view of an inner tank and an outer tank showing a cleaning state according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram of an operation of a main nozzle and a sub nozzle according to the first embodiment of the present invention.

FIG. 7 is a configuration diagram of an air nozzle portion of FIG. 1;

FIG. 8 is a longitudinal sectional view of the air nozzle of FIG. 4;

FIG. 9 is an enlarged perspective view of the adjustment plate of FIG. 5;

10A and 10B are explanatory diagrams of the operation of the air nozzle of FIG. 5, in which FIG.

FIG. 11 is a side view of an air nozzle portion showing a second embodiment of the present invention.

[Description of Signs] 1 Main body 2 Opening 4 Inner tub 5 Cleaning space 6 Outer tub 9 Nozzle for jet water (main nozzle) 10 Object to be washed (tableware) 11 Washing water 14 Nozzle for air 20 Blower 25 Wind speed adjusting mechanism ( Control device) 26 wind speed adjustment mechanism (adjuster) 27 nozzle body 29 drive mechanism (compression coil spring) 30 head 31a nozzle hole 30b pawl 31 wind speed adjustment mechanism (adjustment plate) 31a adjustment hole 35 wind speed adjustment mechanism (pressure loss adjuster)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-158927 (JP, A) JP-A-59-14835 (JP, A) JP-A-4-348735 (JP, A) JP-A-4-148735 165220 (JP, A) JP-A-4-33635 (JP, A) JP-A-64-11524 (JP, A) JP-A-63-147172 (JP, U) JP-A-4-15170 (JP, Y2) JK 49-20380 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 15/00 A47L 15/14-15/16 A47L 15 / 42,15 / 46,15 / 48 A47L 19/00

Claims (5)

(57) [Claims] 1. A provided on the upper surface of the body and an opening capable of loading and unloading the object to be cleaned, the washing space communicating with the opening, water
A water source for supplying water introduced directly from the tube as wash water in the wash and the object to be cleaned, artificially coercive into the cleaning space
A jet water nozzle which exits injection of the cleaning water lifting been cleaning object, in that provided an air nozzle for supplying air flow to be cleaned that is the holding tubular the air nozzles formed on the drive to the cleaning tank walls forming the washing space
Attach it via a mechanism and turn the air nozzle up when using it.
Drives by the pressure of the air flow.
A cleaning apparatus characterized in that the cleaning apparatus is retracted . Characterized by comprising a wind speed adjusting mechanism for varying the speed of the wind wherein the air flow supplied from the air nozzle
The cleaning device according to claim 1 . 3., characterized in that the formation of the air blow-out surface of the nozzle air to the curved surface claim 1 cleaning apparatus according. 4. A cleaning device according to claim 1, characterized in that setting the air blowing direction of the nozzle for air radially. 5. A air nozzle, a tubular <br/> nozzle body opposite open ends, a nozzle hole for injecting detachably locked air stream to the end face of the washing space side of the nozzle body The cleaning device according to claim 1, wherein the cleaning device comprises a head having: