KR20190051774A - Cleaner - Google Patents

Abstract

The present invention provides a cleaner capable of evenly cleaning a whole object to be cleaned without depending on a position of a cleaning nozzle. The cleaner has a cleaning tank accommodating the object to be cleaned, and the cleaning nozzle (3) having multiple injection ports (11) at intervals in the direction of a long side. The cleaning nozzle (3) is maintained to rotate in the cleaning tank. The longer intervals from a rotation center of the cleaning nozzle (3), the larger diameter of the injection port (11) is formed and/or the more numbers of the injection ports (11) are formed. For example, the injection port (11) is formed at constant intervals in the direction of the long side. The longer the intervals from the rotation center of the cleaning nozzle (3), the larger diameter of the injection port (11) is formed.

Description

Cleaner {CLEANER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a scrubber for cleaning a liquid to be cleaned by spraying a liquid.

BACKGROUND ART [0002] Conventionally, as disclosed in Patent Document 1 below, a spray type washing machine is known. The washing machine includes a washing tub 211 in which the object to be washed is stored, a rack 30 in which the object to be washed is placed, an injection port 341 of the washing water, And a cleaning nozzle (34) rotating in the cleaning chamber. The cleaning water of the water storage tank 222 is supplied to the cleaning nozzles 23 and 34 and is jetted from the jetting ports 341 of the cleaning nozzles 23 and 34 to clean the object to be cleaned, (23, 34).

JP-A-2010-149013 (claim 1, identification numbers [0027] - [0030], figures 1 - 4)

In this kind of washing machine, it is necessary to prevent the cleaning defects by causing the liquid from the cleaning nozzle to touch the objects to be cleaned to every corner. However, since the cleaning nozzles rotate about the center in the long-side direction, only by forming the jet ports having the same diameter at regular intervals from the center of the cleaning nozzle to the end, The flow rate of the reaching liquid decreases. Specifically, since the cleaning nozzle has a moving speed in the circumferential direction as it goes outward from the rotation center (in other words, when the cleaning nozzle rotates by a predetermined angle, the moving distance of the jetting port on the outer circumferential side is smaller than the moving distance And the time for which the liquid reaches the per unit area of the object to be cleaned becomes shorter as it deviates from the center of the cleaning nozzle.

Since the cleaning force depends on the flow rate of the liquid that comes into contact with the object to be cleaned, the cleaning force is lowered toward the outer periphery of the cleaning nozzle. Further, the liquid is excessive at the central portion of the cleaning nozzle, and the liquid is insufficient at the peripheral portion, resulting in non-uniformity of the cleaning force at the vicinity of the center and the end of the cleaning nozzle.

Therefore, an object of the present invention is to provide a scrubber capable of uniformly cleaning the entire object to be cleaned irrespective of the position of the cleaning nozzle.

According to a first aspect of the present invention, there is provided a cleaning apparatus comprising: a cleaning tank in which an object to be cleaned is received; and a cleaning nozzle having a plurality of ejection openings spaced apart in the longitudinal direction, And the jetting port is formed to have a larger diameter and / or a larger number as the separation distance from the rotation center of the cleaning nozzle becomes longer.

According to the invention as set forth in claim 1, the ejection orifice formed in the cleaning nozzle is formed to have a larger diameter and / or a larger number as the distance from the rotation center increases. Therefore, the injection flow rate at the outer peripheral side can be increased as compared with the case where the injection holes of the same diameter are formed at just the predetermined intervals. Therefore, the entire object to be cleaned can be uniformly cleaned irrespective of the position of the cleaning nozzle.

The invention according to claim 2 is characterized in that the cleaning nozzles are provided with the jetting ports at regular intervals along the long side direction and the diameter of the jetting ports is increased as the separation distance from the rotation center of the cleaning nozzle becomes longer Lt; / RTI >

According to the invention as set forth in claim 2, the jetting nozzles are formed at regular intervals along the long side direction in the cleaning nozzles, but the larger the jetting distance from the rotational center is, the larger the jetting aperture is formed. With such a simple configuration, the entire object to be cleaned can be uniformly cleaned irrespective of the position of the cleaning nozzle.

According to a third aspect of the present invention, in the cleaning device, the difference between the liquid injection flow rate per unit area in the injection port on the center side and the ejection port on the outer peripheral side of the rotating surface of the cleaning nozzle is set to a predetermined amount or less.

According to the invention described in claim 3, it is possible to reduce the difference in the injection flow rate of the liquid per unit area of the object to be cleaned on the center side and the outer peripheral side of the rotation of the cleaning nozzle. Therefore, the entire object to be cleaned can be uniformly cleaned irrespective of the position of the cleaning nozzle.

According to the cleaning apparatus of the present invention, the entire object to be cleaned can be uniformly cleaned irrespective of the position of the cleaning nozzle.

1 is a schematic view showing a washing machine of an embodiment of the present invention, and a part thereof is shown in cross section.
2 is a schematic plan view showing an example of a cleaning nozzle used in the cleaner of Fig.
Figure 3 is a schematic front view of the cleaning nozzle of Figure 2;
Fig. 4 is a schematic perspective view of the cleaning nozzle of Fig. 2, and a part thereof is omitted.

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the drawings.

1 is a schematic view showing a washing machine 1 of an embodiment of the present invention, and a part thereof is shown in section.

Hereinafter, the overall configuration and operation method of the scrubber 1 will be described first, and then the strainer 3, which is a characteristic part of the present invention, will be described. 1 will be referred to as a left-right direction of the washing machine 1, and a vertical direction in Fig. 1 will be referred to as a top-bottom direction of the washer 1, And the direction orthogonal to the longitudinal direction of the washing machine 1 will be described.

The washing machine 1 of the present embodiment is provided with a washing tub 2 containing an object to be washed, a washing nozzle 3 for injecting liquid to the object to be washed in the washing tub 2, A water supply means 5 to the liquid storage portion 4, a drain means 6 from the liquid storage portion 4 and a chemical liquid supply means 4 to the liquid storage portion 4 A circulation means 8 for supplying the liquid in the liquid storage portion 4 to the cleaning nozzle 3, a heating means 9 for heating the liquid in the liquid storage portion 4, 5) to 9 (not shown).

The object to be cleaned is not particularly limited, but is, for example, a medical instrument such as a forceps. In the cleaning tank 2, cleaning nozzles 3 are provided at upper and lower plural stages, but the objects to be cleaned are disposed between the upper and lower cleaning nozzles 3. In this case, the object to be cleaned can be placed on a shelf (not shown) in a lattice shape or a network shape. Further, the object to be cleaned may be accommodated in a basket or the like if necessary.

The cleaning tank 2 is a hollow container for containing the object to be cleaned. The cleaning tank 2 has a substantially rectangular hollow box shape in this embodiment. The washing tub 2 can be opened and closed by a door (not shown). By opening the door, the object to be cleaned can be taken in and out of the washing tub 2. Although the door is provided on the front surface of the cleaning tank 2, it may be provided on both the front surface and the rear surface of the cleaning tank 2.

The cleaning nozzle (3) injects liquid to the object to be cleaned in the cleaning tank (2). The cleaning nozzles 3 are vertically arranged in the cleaning tank 2 at plural stages. In this embodiment, the base end portion of the arm-shaped support member 10 is provided at one side portion of the front-rear direction central portion of the washing tub 2 at a plurality of upper and lower ends, 2 from the one side thereof toward the center in the lateral direction. Then, the central portion in the longitudinal direction of the cleaning nozzle 3 is kept rotatable around the longitudinal axis at the leading end of the elongation.

2 to 4, a plurality of jetting openings 11 (Figs. 2 to 4) for jetting the liquid supplied through the inside of the supporting member 10 are formed in the cleaning nozzle 3. As shown in Fig. When the liquid is supplied into the cleaning nozzle 3 through the supporting member 10, the liquid is jetted from the jetting port 11 of the cleaning nozzle 3. By this sorting, the cleaning nozzle 3 rotates in the horizontal direction. On the other hand, the cleaning nozzle 3 provided at the upper end of the cleaning tank 2 injects liquid only downward, the cleaning nozzle 3 provided at the lower end of the cleaning tank 2 injects liquid only to the upper side, The cleaning nozzle injects liquid on both the upper and lower sides.

1, the washing rack 12 may be made to be able to go in and out of the washing tub 2, as indicated by the one-dot chain line. In the illustrated example, the cleaning nozzles 3 provided at both the upper and lower ends are provided in the cleaning tank 2, and the other cleaning nozzles 3 are provided in the cleaning rack 12. The cleaning rack 12 is provided with a drain member 13 at one side and a support member 10 is provided at a plurality of upper and lower ends in the drain member 13. The support member 10 is provided with a cleaning nozzle 3 are held rotatable. The cleaning rack 12 is provided with a mounting shelf of the object to be cleaned on the upper portion of each cleaning nozzle 3 and the lower portion of the cleaning rack 12. When the washing rack 12 is stored in the washing tub 2, the pipe from the circulating pump 14, which will be described later, is connected to the drain member 13.

A liquid storage portion 4 is connected to a lower portion of the cleaning tank 2. Specifically, a liquid storage portion 4 recessed downward is formed on the bottom surface of the cleaning tank 2. Conversely, the liquid storage portion 4 is provided on the bottom surface of the cleaning tank 2 so as to open upward. On the other hand, it is preferable that the bottom surface of the cleaning tank 2 is formed to be inclined downward as it approaches the rim of the opening of the liquid storage part 4. [

In the present embodiment, the bottom surface of the cleaning tank 2 is formed of an inclined surface (inclined surface) 2a whose both left and right ends are inclined downward in the transverse direction inwardly, and both front and rear ends are inclined downward And is formed into an inclined slope. A liquid storage portion 4 recessed downward in a substantially spherical shape is formed in the central portion in the left-right direction of the cleaning tank 2 and in the front-rear direction central portion.

It is preferable that the cleaning tank 2 and the liquid storage portion 4 are partitioned by a partition member 15 composed of a net material or a perforated plate. For example, the cleaning tank 2 and the liquid storage portion 4 are partitioned into a partition member 15 composed of a metal mesh or a punching metal. Further, it is preferable that a strainer (not shown) is provided below the partition member 15 in the liquid storage portion 4. [ The size of the mesh of the strainer is sufficiently smaller than that of the partition member 15.

The water supply means (5) supplies water to the liquid storage portion (4) through the water supply line (16). The water supply passage 16 is provided with a water supply valve 167. The water can be supplied to the liquid storage portion 4 by turning off the water supply valve 17. [ In the illustrated example, the water supply passage 16 is connected to the cleaning tank 2 so that the water supply is supplied to the liquid storage portion 4 through the cleaning tank 2, but the water supply passage 16 is provided in the liquid storage portion 4. [ The water supply may be directly supplied to the liquid storage part 4. [ On the other hand, the water supply means 5 may be configured to be able to supply water selected from plural kinds of water (for example, tap water, hot water, membrane filtration water, etc.).

The drainage means (6) discharges the water from the liquid storage portion (4) through the drainage line (18). A drain valve 19 is provided in the drainage passage 18. The water can be drained from the washing tub 2 or the liquid storage part 4 by removing the drain valve 19.

The chemical liquid supply means 7 supplies the chemical liquid from the chemical liquid tank 20 to the liquid storage portion 4 through the liquid- A chemical liquid pump (22) is provided in the liquid level path (21). By operating the chemical liquid pump 22, a predetermined amount of chemical liquid can be supplied to the liquid storage portion 4. [ The liquid medicine is directly supplied to the liquid storage portion 4 by connecting the liquid medium supply portion 21 to the liquid storage portion 4. By connecting the liquid medium supply portion 21 to the cleaning tank 2, And may be supplied to the liquid storage portion 4 through the cleaning tank 2. On the other hand, the chemical liquid supply means 7 may be configured to be capable of supplying a chemical liquid selected from plural kinds of chemical liquids (for example, alkaline detergent, enzyme compounding detergent, lubricant rust inhibitor, drying promoter, etc.).

The circulation means 8 circulates and supplies the liquid in the liquid storage portion 4 to the cleaning nozzle 3. Specifically, the circulation means 8 includes a circulation pipe 23 and a circulation pump 14. The circulation pipe 23 is a pipe from the liquid storage part 4 to the support member 10 of each cleaning nozzle 3 and a circulation pump 14 is installed in the middle thereof. On the other hand, in the illustrated example, the piping from the liquid storage portion 4 to the circulation pump 14 in the circulation piping 23 is a common pipeline to the drainage passage 18 on the upstream side. A check valve 24 is provided on the outlet side of the circulation pump 14 in the circulation pipe 23. When the circulation pump 14 is operated, the liquid in the liquid storage portion 4 is supplied to the cleaning nozzle 3 through the circulation pipe 23 and the support member 10 to be jetted, It is possible to send back to the unit 4.

In this embodiment, the heating means 9 is constituted by a heater 25 provided in the liquid storage portion 4. [ The heater 25 is an electric heater in the illustrated example, but may be a steam heater in some cases. In the case of the electric heater, the on / off control is typically performed, but the output may be adjusted by the case. On the other hand, in the case of the steam heater, the steam can be supplied into the steam pipe, and the condensed water of the steam is discharged to the outside through the steam trap. Then, the opening or closing degree of the surge valve installed in the sudden flow (supply steam path) is controlled.

A liquid level detector 26 is installed in the liquid storage portion 4. [ The liquid level detector 26 is not particularly limited in its configuration, but is constituted by, for example, a pressure sensor provided at the bottom of the liquid storage portion 4. [ In this case, the liquid level is determined by using the fact that the liquid pressure in the liquid storage portion 4 or the cleaning tank 2 is changed.

The liquid storage portion 4 is provided with a temperature sensor 27. By controlling the heater based on the detected temperature of the temperature sensor 27, the temperature of the stored liquid in the liquid storage portion 4 can be adjusted.

In addition, the ultrasonic vibrator 28 is installed in the washer 1 as needed. In the illustrated example, the ultrasonic vibrators 28 are provided on the left and right inclined surfaces 2a of the lower portion of the cleaning tank 2, respectively. The ultrasonic vibrator 28 is connected to the ultrasonic oscillator to control oscillation. The object to be cleaned can be ultrasonically cleaned by operating the ultrasonic vibrator 28 in a state in which the object to be cleaned is immersed

The control means is a controller (not shown) connected to the liquid level detector 26 and the temperature sensor 27 in addition to the respective means (5) to (9). More specifically, the water supply valve 17, the drain valve 19, the chemical liquid pump 22, the circulation pump 14, the heater 25, the ultrasonic oscillator 25, the liquid level detector 26, Etc. are connected to the controller. Then, the controller cleans the object to be cleaned in the cleaning tank 2 according to a predetermined procedure (program). In this case, at least a shower washing operation described later can be executed.

In the shower cleaning operation, the liquid is stored in the liquid storage portion 4, and the liquid is circulated and supplied to the cleaning nozzle 3 by the circulation means 8 to be sprayed from the cleaning nozzle 3 to the object to be cleaned . Specifically, water is supplied to the liquid storage portion 4 by the water supply means 5 until the liquid level detector 26 detects the set water level. When the circulation pump 14 is operated, the water level drops. Therefore, the set water level at the initial water supply may be higher than the partition member 15, for example, water is supplied to the vicinity of the upper edge of the slope 2a. In this case as well, the water level during the operation of the circulation pump 14 is suppressed into the liquid storage portion 4.

After supplying the liquid to the liquid storage part 4, the desired chemical liquid is injected into the liquid storage part 4 by the chemical liquid supply unit 7 as necessary. The chemical liquid by the chemical liquid supply means 7 is supplied by the set amount so that the set chemical concentration becomes the set concentration with respect to the water supply by the water supply means 5. [ Similarly, if necessary, the heating means 9 heats the stored liquid in the liquid storage portion 4 to the set temperature. The introduction of the chemical liquid or the heating of the stored product may be performed during the operation of the circulation means 8 without being limited to the operation of the circulation means 8. [

In any case, the circulating pump 14 is operated in a state where a desired amount of liquid is stored in the liquid storage portion 4, and the stored liquid is supplied to the cleaning nozzle 3 , And the object to be cleaned is cleaned while rotating the cleaning nozzle 3. Then, the liquid sprayed from each of the cleaning nozzles 3 is returned to the liquid storage portion 4 under the cleaning tank 2. The circulation pump 14 is stopped and the liquid in the liquid storage portion 4 is discharged by the drain means 6 when the predetermined end condition (for example, the lapse of the set time) is satisfied.

Typically, such shower cleaning operation is repeated to clean and rinse the object to be cleaned. For example, preliminary rinsing with normal temperature water into which no chemical liquid is not added, main rinsing (typically, plural times) by hot water into which detergent has been added as required, and rinsing rinsing with hot water into which rinsing agent has been added as needed And a plurality of times).

Next, a specific example of the cleaning nozzle 3 used in the washing machine 1 of the present embodiment will be described.

Figs. 2 to 4 are schematic views showing an example of the cleaning nozzle 3 of the present embodiment, Fig. 2 is a plan view, Fig. 3 is a front view, and Fig. Hereinafter, the long side direction of the cleaning nozzle 3 is the lateral direction (longitudinal direction) in FIG. 2, and the short side direction of the cleaning nozzle 3 is the vertical direction (width direction) in FIG.

The cleaning nozzle 3 is formed of an elongated hollow member and is retained by the support member 10 in such a manner as to be rotatable about the longitudinal axis (i.e., rotatable in the horizontal direction), as described above. In the cleaning nozzle 3, a liquid jetting port 11 is formed. The jetting ports (11) are formed on any one or more surfaces of the top, bottom, short side, and long side of the cleaning nozzle (3). In this case, a plurality of jetting ports 11 are formed in the cleaning nozzle 3 at intervals in the longitudinal direction. Also, at least one jetting port 11 is formed to eject the liquid other than the up-and-down direction (that is, just above and below). Therefore, the cleaning nozzle 3 can be rotated by the jet from the jetting port 11. [

The cleaning nozzle 3 of the present embodiment is formed of a cylindrical member in which both end portions in the long side direction are closed. The cross section of the lumen may be an elliptical shape or the like, but in this embodiment, it is a substantially spherical shape. In this case, the cleaning nozzle 3 is arranged such that long sides of a substantially rectangular cross section are horizontally arranged and short sides are vertically arranged. A plurality of jetting ports (11) are formed in the cleaning nozzle (3) at intervals in the longitudinal direction.

In the illustrated example, a jetting port 11A is formed on one side in the short-side direction in the long side direction of the cleaning nozzle 3 (the left half in FIG. 2) with the center of the long side direction of the cleaning nozzle 3 as a boundary And an injection port 11 is formed on the other side in the short side direction on the opposite side of the long side direction of the cleaning nozzle 3 (the right half of FIG. 2). In this case, it is preferable that ejecting openings 11 having a predetermined size and shape are formed at predetermined intervals so as to be point-symmetrical with respect to the center of the cleaning nozzle 3 (the center in the long side direction and the center in the short side direction). Further, in the illustrated example, the jetting ports 11 are formed on both end surfaces in the long side direction of the cleaning nozzle 3.

The cleaning nozzle 3 may be a side surface in the short side direction or a cross section in the long side direction may be a vertical surface (a surface perpendicular to the top and bottom surfaces of the cleaning nozzle 3), but is formed on the inclined surfaces 3a and 3b in the illustrated example. An injection port 11 is formed on the inclined surface 3a. Specifically, at both ends in the short-side direction of the cleaning nozzle 3, an inclined surface 3a which is inclined inwardly in the up-and-down direction as it goes outward in the short-side direction is formed and the ejection opening 11 is formed in the inclined surface 3a . At both ends of the cleaning nozzle 3 in the long side direction, an inclined surface 3b inclined inwardly in the up-and-down direction is formed in the direction of the outer side in the long side direction, and a jetting port 11 is formed in the inclined surface 3b. Each jet opening 11 is opened perpendicularly to each of the inclined surfaces 3a and 3b. The shape of each jetting port 11 is not particularly limited, but is generally a round hole.

The jetting ports 11 formed in the cleaning nozzle 3 are formed such that the diameter of the jetting nozzle 11 is increased and / or the number of the jetting ports 11 is increased as the separation distance from the rotation center . For example, (A) the jetting ports 11 are formed at equal intervals along the long side direction of the cleaning nozzle 3, but are formed so as to have a larger diameter as the cleaning nozzle 3 is moved toward the outer circumferential side. Or if it is assumed that (B) the length of the long side of the cleaning nozzle 3 is divided into a plurality of sections at regular intervals (that is, so as to extend by a predetermined dimension from the center of rotation), the jetting ports 11, (Generally, holes having the same orifice diameter) are formed so as to be larger in the partition on the outer peripheral side of the cleaning nozzle 3. [ Alternatively, (C) the ejection openings 11 are formed such that the same orifices are spaced apart in the longitudinal direction of the cleansing nozzle 3, but are spaced apart from each other in the longitudinal direction of the cleansing nozzle 3 (The distance between the ejection openings 11 adjacent to each other) is shortened. Alternatively, the jetting ports 11 of the cleaning nozzle 3 may be formed by knitting such as (A) to (C). In short, the jetting nozzle 11 is formed in the cleaning nozzle 3 such that the opening area becomes larger on the outer circumferential side.

In the illustrated example, the jetting ports 11 formed on the side of the cleaning nozzle 3 in the short side direction are formed as follows. That is, the jetting nozzles 11 are formed in the cleaning nozzle 3 at regular intervals along the long side direction, and the diameter of the jetting ports 11 becomes larger as the separation distance from the rotation center of the cleaning nozzle 3 becomes longer have.

As described above, according to the washing machine 1 of the present embodiment, the jetting ports 11 formed in the cleaning nozzle 3 are formed such that the diameter and / or the number of the jetting ports 11 increases as the distance from the rotation center increases. Therefore, the injection flow rate on the outer peripheral side can be increased as compared with the case where the injection ports 11 having the same diameter are formed at regular intervals. Therefore, the entire object to be cleaned can be uniformly cleaned irrespective of the position of the cleaning nozzle 3.

It is preferable that the difference between the liquid injection flow rate per unit area on the center side and the outer peripheral side of the rotation surface of the cleaning nozzle 3 is set to a predetermined amount or less (preferably, zero). That is, when observing the rotating region of the cleaning nozzle 3 as seen from the plane of the washing machine 1, the circular rotation area (and furthermore, the center of rotation of the cleaning nozzle 3) The number and position of the jetting ports 11 are adjusted so as to reduce the difference in the jetting flow rate of the liquid per unit area of the jetting ports 11. Therefore, the entire object to be cleaned can be uniformly cleaned irrespective of the position of the cleaning nozzle 3.

More specifically, with respect to the center of the cleaning nozzle 3 in the long-side direction and the area of the outer end (right half or left half in Fig. 3), the dimension along the long side direction of the cleaning nozzle 3 is equally divided And the right half of FIG. 3 is equally divided into right and left again). As described above, the rotating region of the cleaning nozzle 3 is circular when viewed from above, and each virtual partition forms a concentric discharge region from the center of the circle. The jetting ports 11 of the cleaning nozzles 3 are adjusted such that the difference in the jetting flow rate of the liquid per unit area is equal to or less than a predetermined amount when the jetting areas 11 of the virtual sections are compared with each other. Therefore, the entire object to be cleaned can be uniformly cleaned irrespective of the position of the cleaning nozzle 3. On the other hand, each of the virtual sections may have one injection port 11 or a plurality of injection ports 11.

The washing machine 1 of the present invention is not limited to the constitution of the above-described embodiment, but can be appropriately changed. And a cleaning nozzle 3 in which a plurality of jetting ports 11 are formed at intervals in the long side direction and the cleaning nozzle 3 is provided in the cleaning tank 2, And the jetting ports 11 may be appropriately changed as long as the diameter of the jetting nozzle 3 is increased and / or the number of the jetting ports 11 is increased as the distance from the rotation center of the cleaning nozzle 3 is increased.

For example, in the above-described embodiment, the injection port 11 is formed on the side surface in the short direction of the cleaning nozzle 3 and the size of the injection port 11 is adjusted (formed to have a larger diameter toward the outer side in the longitudinal direction) The injection port 11 may be formed on the surface and / or the lower surface of the nozzle 3 and the size of the injection port 11 may be adjusted. In this case as well, at least one jetting port 11 is provided in the short side direction side of the cleaning nozzle 3 in order to rotate the cleaning nozzle 3 from the jetting port 11, (I. E., Directly above and below but directly below) the liquid. It is also possible to adjust the number of nozzles 11 in addition to the size of the jetting ports 11 as described above.

Further, the cleaning nozzle 3 may be formed so that its tip is narrowed (the dimension in the short side direction is reduced) as it goes from the rotation center to the outer peripheral side. The shape of the cleaning tank 2 and / or the liquid storage portion 4 in plan view is not limited to a substantially spherical shape, but may be a polygonal shape other than a circular or elliptic shape and a spherical shape.

Further, in the above embodiment, a blower may be further provided to dry the object to be cleaned after cleaning. In this case, the wet object to be cleaned after cleaning can be dried by hot air supplied to the cleaning tank 2.

1 washing machine
2 washing tank (2a: slope)
3 cleaning nozzles 3a and 3b (inclined surfaces)
4 liquid reservoir
5 water supply means
6 Drainage means
7 Chemical solution supply means
8 circulation means
9 Heating means
10 support member
11th hole
12 washing rack
13 drainage member
14 Circulation pump
15 partition member
16th grade
17 water valve
18 multiples
19 drain valve
20 Chemical solution tank
21 Level of payment
22 Chemical fluid pump
23 Circulating piping
24 check valve
25 Heater
26 liquid level detector
27 Temperature sensor
28 Ultrasonic vibrator

Claims (3)

A cleaning tank in which the object to be cleaned is received,
And a cleaning nozzle having a plurality of jetting ports spaced apart in the longitudinal direction,
Wherein the cleaning nozzle is rotatably held in the cleaning tank,
Wherein the jetting port is formed so that a diameter of the jetting nozzle becomes larger and / or a number of the jetting nozzle increases as a distance from the rotation center of the cleaning nozzle becomes longer. The method according to claim 1,
Wherein the cleaning nozzles are formed with the jetting ports at regular intervals along the long side direction,
And the diameter of the jetting port is increased as the distance from the rotation center of the cleaning nozzle becomes longer. 3. The method according to claim 1 or 2,
Wherein the difference between the liquid injection flow rate per unit area in the injection port on the center side and the injection port on the outer peripheral side of the rotating surface of the cleaning nozzle is set to a predetermined amount or less.

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