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JP2002086070

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2002086070
[0001]
BACKGROUND OF THE INVENTION The present invention relates to the use of ultrasonic waves
to wash soft materials such as cloths, and in particular, to superclean partial stains such as
clothing cuffs and collars and strong stains. The present invention relates to a sonic vibrator.
[0002]
2. Description of the Related Art Conventionally, it is difficult to remove partial stains of the
laundry such as the cuffs and collars of cotton shirts and cotton socks, so after being roughly
washed by hand or with a brush in advance, it is put into the washing machine and washed. I am
jealous.
[0003]
[0003] As a method of eliminating this complexity, in the technique disclosed in Japanese Patent
Laid-Open No. 4-224793, a cleaning liquid supply device for supplying a cleaning liquid to the
washing machine main body with a jet nozzle for washing the cleaning object and a jet nozzle.
Also, there has been proposed a method of partially washing with a cleaning fluid on which
ultrasonic waves spouted from a jet nozzle are applied by an ultrasonic wave generator for
placing ultrasonic waves on the cleaning fluid.
[0004]
Further, as a method of irradiating an object to be cleaned with ultrasonic waves directly via a
vibrating horn for cleaning, it is disclosed in JP-A-6-218337.
04-05-2019
1
[0005]
In this method, the cleaning liquid is jetted from the tip of the vibrating horn, or the horn is
ultrasonically vibrated while the liquid is sprayed to the tip of the horn, and the ultrasonic wave
from the horn is irradiated to the portion to be cleaned. It is a shellable type washing device
characterized by peeling off the dirt and draining the dirt with a liquid.
[0006]
On the other hand, as a technique for promoting the dissolution of the powder detergent, for
example, a washing machine having the following configuration has been proposed.
[0007]
FIG. 6 is a cross-sectional view of the vicinity of the water supply portion in the upper portion of
the washing machine of the conventional full-automatic washing machine having a detergent
automatic feeding device.
[0008]
A water supply port 19 is provided at the top of the washing machine, and a path leading to the
detergent feeding box 13 is formed.
[0009]
An impeller 28 is installed in the detergent input box 13, and the detergent input box 13 can
slide forward (left direction in the figure), and the user can adjust an appropriate amount of
powder detergent 20 according to the amount of laundry. After charging, the detergent input box
13 is returned to the original state shown.
[0010]
Next, when tap water flows into the detergent input box 13 by opening the water supply valve
21, the impeller 27 is rotated by the dynamic pressure of the flowing water, and the powder
detergent 20 is agitated to be tap water. In water to form detergent water 22, which is supplied
into the washing tank.
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This method improves the dissolution of synthetic detergents.
[0011]
In this automatic detergent feeding apparatus, although the concentration of the washing
solution is improved rather than direct feeding of the detergent into the washing tank, the
remaining undissolved detergent at the time of water supply still exists.
I can not fully extract the detergent power.
[0012]
As a method for solving the problem, in this technique, which is proposed in the technique
disclosed in Japanese Utility Model Application Laid-Open No. 6-36591, in the automatic
injection of the detergent, the dissolution of the detergent is utilized using ultrasonic waves. To
promote.
That is, in this apparatus, the powder detergent is temporarily dissolved by supplying water to
the detergent dissolution cylinder containing the powder detergent, and the detergent which is
suspended as a powder without being able to dissolve in this part is suspended in the detergent
dissolution cylinder. It is made to be dissolved secondarily by the ultrasonic wave from the
ultrasonic transducer installed in the downstream piping.
[0013]
However, each of the above-mentioned prior arts has the following problems.
[0014]
(1) In the case disclosed in JP-A-4-224793, the object to be cleaned is brought to the lower side
of the jet nozzle and cleaned by the force of ultrasonic waves. When the object is mainly a soft
material such as cloth, the vibration of water by the ultrasonic wave is absorbed by the cloth
itself, and it is difficult to convert the dirt into a force to release it from the cloth, so only a
certain degree of cleaning power is obtained. Absent.
04-05-2019
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[0015]
Also, if the distance from the jet outlet to the object to be cleaned is far away, the ultrasonic
waves are attenuated in the jet and a strong cleaning power can not be expected.
[0016]
(2) Further, in the case disclosed in Japanese Patent Application Laid-Open No. 6-218337, since
ultrasonic vibration is directly applied to the object to be cleaned, it can be said that the
transmission of the mechanical force to the dirt is good. .
[0017]
However, because of the portability, for example, when cleaning the collars and cuffs of clothes,
some water receiving parts are necessary, and a certain amount of tension is applied to the
collars and sleeves. In this state, the operation of pressing the horn tip of the cleaning device held
by one hand is required, and it can be easily imagined that the cleaning operation becomes
difficult.
Furthermore, in such an operation, there is a high risk of severe pain when a finger is in direct
contact with the horn portion.
[0018]
(3) Further, according to the technique disclosed in Japanese Utility Model Application Laid-Open
No. 6-36591, a powdery detergent floating in flowing water is continuously connected by
ultrasonic waves from a vibrating surface disposed on the side surface of a water supply pipe.
The dissolution mechanism is considered to be only the strong near-field near the vibrating
surface, and the time for the powdery undissolved detergent to pass through the near-field is
considered to be very short. .
Therefore, in such a configuration, a sufficient dissolution promoting effect can not be expected.
[0019]
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The present invention has been made to solve the above-mentioned problems, and provides an
ultrasonic vibrator capable of facilitating partial washing of the laundry and sufficiently
promoting the dissolution of the powder detergent. To be a task.
[0020]
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the ultrasonic
vibrator according to the present invention is as follows.
[0021]
According to the first aspect of the present invention, there is provided an ultrasonic transducer,
a vibrating horn mechanically connected to the ultrasonic transducer, and a case in which the
ultrasonic transducer and the vibrating horn are provided. The tip end of the vibrating horn is
exposed to the outside from the tip end of the case.
[0022]
[0022] Thus, since the worker can directly contact the portion of the soiled portion of the
laundry with the vibrating horn, partial washing can be easily performed and sufficient partial
washing can be performed.
In addition, since the tip of the vibrating horn is exposed to the outside at that time, the safety for
the operator is also improved.
[0023]
According to the second aspect of the present invention, in the configuration of the first aspect,
the cross-sectional shape of the tip portion of the vibrating horn is substantially rectangular.
[0024]
Thus, in the invention according to claim 3, the ultrasonic vibrator can take up the area of the
washing portion for partial washing. In the constitution according to claim 1 or 2, zircon titanium
It is equipped with a lead-based Langevin type vibrator.
[0025]
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This makes it possible to increase the input of the vibrator corresponding to the high output.
[0026]
According to a fourth aspect of the present invention, in the configuration according to any one
of the first to third aspects, the surface of the tip portion of the vibrating horn is processed into a
fine uneven shape.
[0027]
Thereby, the cleaning effect can be enhanced.
[0028]
According to the fifth aspect of the present invention, in the configuration according to any one
of the first to fourth aspects, the resonance frequency of the ultrasonic transducer is adjusted to
20 to 50 KHZ.
[0029]
Thereby, the safety is improved.
[0030]
According to a sixth aspect of the present invention, in the configuration according to any one of
the first to fifth aspects, a seal member is mounted between the case and a portion close to the
vibrator side of the vibration horn. doing.
[0031]
Thus, a waterproofing effect on the vibrator side can be obtained.
[0032]
According to the seventh aspect of the present invention, in the configuration according to any
one of the first to sixth aspects, the ultrasonic vibrator is detachably provided to the washing
machine main body.
[0033]
As a result, the ultrasonic vibrator can be detached from the washing machine main body and
04-05-2019
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used as needed, so that the convenience is enhanced.
[0034]
According to an eighth aspect of the present invention, in the configuration according to any one
of the first to seventh aspects, the exposed portion of the tip of the vibrating horn is exposed 1
mm from the tip of the case.
[0035]
Thus, partial washing can be performed by bringing the exposed vibrating horn into contact with
or in proximity to each other, which facilitates the partial washing operation and is safe for the
operator.
[0036]
BEST MODE FOR CARRYING OUT THE INVENTION In this embodiment, although the present
invention is applied to a domestic washing machine, particularly to a fully automatic washing
machine here, the present invention is also applied to a non-automatic washing machine. It is
possible.
[0037]
Embodiment 1 FIG. 1 is a side sectional view showing an upper portion of a full-automatic
washing machine according to Embodiment 1. FIG.
[0038]
In the first embodiment, the upper part 11 of the washing machine main body 40 is provided
with the washer upper cover 11.
The washer upper cover 11 is a resin molded product, and the case storage portion 12 is molded
on the side close to the front of the washing machine main body 40 (left side in the drawing)
with the cover 11 vertically penetrated. The ultrasonic vibrator 50 is mounted in the case
housing portion 12 with a slight clearance.
Further, a detergent feeding box 13 is disposed below the washer upper cover 11.
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Furthermore, a water supply port 19 is formed in the washer upper cover 11, and the water
supply port 19 is in communication with the detergent input box 13 through the water supply
valve 21, and a second partition plate 17 described later Tap water is supplied to the back side.
Note that this water supply may be supplied from bath water via a pump (not shown).
[0039]
The ultrasonic vibrator 50 has a vibrator case 4 of a resin molded product, and the front end
portion of the case is lined with a metal (not shown) to prevent melting and deformation of the
resin due to ultrasonic cavitation. The ultrasonic transducer 1 is provided inside the transducer
case 4.
[0040]
The ultrasonic transducer 1 is a lead zirconate titanate type Langevin type transducer, and its
resonance frequency is adjusted to 20 to 50 KHZ.
The ultrasonic transducer 1 is fixed via a vibration absorber such as rubber (not shown) so that
the vibration is not transmitted to the transducer case 4. The vibration horn 3 is mechanically
connected via the.
[0041]
The shape of the tip 3A of the vibrating horn 3 is shown in FIGS. 2 (A) and 2 (B).
[0042]
The cross-sectional shape of the tip 3A of the vibrating horn 3 is substantially rectangular, and
the horizontal cross-sectional area becomes smaller toward the tip, so that the ultrasonic wave
amplitude is largely amplified toward the tip. It has become.
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In addition, on the main side, the one in which the thickness in the depth direction in the drawing
in FIG.
[0043]
Also, the surface of the tip 3A is processed into a corrugated shape of about several millimeters
as shown in FIG. 7A, or into a dimpled shape as shown in FIG. In addition, various shapes such as
random irregularities (not shown) of about several tens of micrometers may be considered.
The shape can be easily formed, for example, by machining methods such as cutting, electrical
discharge machining, etching, sand blasting and the like.
And, by this unevenness, it is possible to improve the so-called washing plate effect
(concentration of pressure on the convex portion) in the partial washing operation and the
cleaning power by the concentration of the excitation force to the convex portion.
[0044]
In FIG. 2, the cross-sectional shape of the tip portion of the vibrating horn 4 is a substantially
rectangular one, but it is not limited to the shape of this example.
[0045]
In the vibrating horn 3, only the tip 3A having the largest ultrasonic density is exposed to the
outside from the tip of the transducer case 4 to the side of the washing tub 42 by about 1 MM.
Further, the seal member 10 is mounted on the entire periphery of the vibrating horn 3 near the
vibrator 1 side and is in contact with the inner surface of the vibrator case 4, whereby the
ultrasonic vibrator located above it is It is waterproofed so that the current-carrying part for
driving 1 is not flooded.
[0046]
The ultrasonic transducer 1 and the terminal 5 are electrically connected by the in-case power
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line 6, and the terminal 5 is connected to the main body side power line 9 through the cord reel
8, and further, the main body side power The wire 9 is electrically connected to the oscillation
circuit 7 provided below the washer upper cover 11.
[0047]
On the other hand, the detergent input box 13 is a container whose top is completely open and is
rotatably held by the hinge 14 about the same, and the front panel 18 is provided with a handle
15 for opening and closing. And a convex portion 30 is provided on the back surface of the front
panel 18, and a concave portion 32 is formed at a position opposed to the convex portion 30 of
the washer upper cover 11, respectively. The detergent input box 13 is held horizontally by the
32 engagements.
[0048]
Further, inside the detergent feeding box 13, there are provided a first partition portion 16
whose entire surface is made of mesh and a second partition portion 17 whose lower half portion
has a mesh structure, The powder detergent 20 is to be introduced into the detergent storage
portion 36 formed by the both 16 and 17 and the side and bottom of the detergent input box 13.
[0049]
Furthermore, a hole 34 having a shape slightly larger than the tip 3A of the vibrating horn 3 is
formed at the bottom of the detergent feeding box 13, and the vibrating horn 3 passes through
the detergent feeding box 13 by this hole 34 to wash the tub. It is slightly exposed toward 42.
Further, a portion from the hole 34 at the bottom of the detergent feeding box 13 to the front
panel 18 on the front side is also configured as the mesh portion 38.
[0050]
Thus, the detergent water 22 flowing out of the detergent input box 13 comes into contact with
the side of the vibrating horn 3 and then falls into the washing tub 42 through the holes 34 or
the mesh portion 38. .
[0051]
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Reference numeral 44 denotes a balance ring provided in the washing tub 42.
[0052]
Next, the case where detergent dissolution and partial washing are simultaneously performed in
the configuration shown in FIGS. 1 and 2 will be described with reference to the flow chart
shown in FIG.
[0053]
First, the user sets the washing conditions (step 2) after putting the laundry into the washing tub
42 (step 1).
[0054]
Next, while pulling the opening / closing handle 15 toward the front, the detergent input box 13
is opened, and a predetermined amount of synthetic detergent or powder detergent 20 such as
powder soap is inserted into the detergent storage portion 36 ( Step 3), close the detergent input
box 13.
[0055]
Next, when the washing start switch (not shown) is pressed (step 4), the amount of laundry is
detected by a sensor (not shown) etc. (step 5), and the water supply valve 21 is opened
accordingly. A predetermined amount of water is supplied to the tank 42 in accordance with the
amount of laundry (step 6).
At this time, a high frequency current is applied from the oscillation circuit 7 to the ultrasonic
vibrator 1 simultaneously with the water supply, and the ultrasonic vibrator 50 starts ultrasonic
vibration (step 7).
[0056]
At the tip of the vibrating horn 3, the powder detergent 20 is crushed little by little by the
ultrasonic vibration, and the powder detergent 20 is suspended or dissolved to form the
detergent water 22, and the detergent water 22 is added to the cleaning tank 42. Supplied.
04-05-2019
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[0057]
In the case of partially washing the laundry during this detergent dissolving step, it is desirable to
partially wash the laundry in advance, for example, by applying a liquid detergent exclusively for
partial washing to the soiled portions such as collars and sleeves. When the dirty part is pressed
against the tip 3A of the vibrating horn 3 during water supply to the washing tub 42 and the
dirty part is rubbed by the tip 3A, direct vibration transmission of ultrasonic waves and water
feeding on the surface of the vibrating horn 3 Partial contamination is removed by the resulting
cavitation (step 8).
The clothes thus partially washed are put into the washing tub 42 as they are, and the washing
machine lid is closed (step 9).
[0058]
When the water level sensor (not shown) detects that the predetermined water supply has ended
(step 10), the supply of the high frequency current from the oscillation circuit 7 is stopped and
the ultrasonic vibration is stopped (step 11). , The water supply valve 21 is closed (step 12), and
normal washing is started (step 13).
[0059]
Incidentally, even if partial washing is not performed during the detergent dissolving step shown
in FIG. 3, partial washing can be carried out during normal washing according to the procedure
as shown in the flow chart of FIG.
[0060]
That is, when it is desired to partially wash during normal washing (step 20), the washing
machine lid is opened (step 21), and a partial washing switch not shown is turned on (step 22).
While the water supply valve 21 is opened (step 23), the ultrasonic transducer 1 is driven (step
24), and the above-described partial washing operation can be performed (step 25).
[0061]
When it is desired to finish the partial washing operation, if the partial washing switch is turned
off (step 26), the operation of the ultrasonic transducer 1 is stopped (step 27) and the water
supply valve 21 is closed (step 28). ), The lid of the washing machine can be closed (step 29) to
return to the normal washing process.
04-05-2019
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[0062]
Furthermore, although detailed description will be omitted here, if only partial washing is desired
even during normal washing, it is possible to use a method other than the normal washing step
shown in the flow chart of FIG. Implementation is possible.
[0063]
Embodiment 2 FIG. 5 is a side sectional view showing an upper portion of a full-automatic
washing machine according to Embodiment 2. The parts corresponding to Embodiment 1 shown
in FIG.
[0064]
The features of this embodiment 2 are as follows.
[0065]
A handle 23 for attaching and detaching the case is attached to the upper portion of the
transducer case 4. By pulling this upward, the ultrasonic vibrator 50 can be removed from the
case storage 12 .
In addition, a partial washing switch 26 for operating the ultrasonic transducer 1 is provided in
the transducer case 4 of the ultrasonic transducer 50.
[0066]
On the other hand, a flat plate member 24 is swingably provided at the bottom of the detergent
feeding box 13 by a support shaft 46 connected to a ratchet mechanism or the like (not shown).
A clip 25 is attached so that the laundry can be held between the clip 25 and the wall surface of
the front cover 11.
The other configuration is the same as that of the first embodiment, and thus the detailed
description is omitted here.
04-05-2019
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[0067]
The flat member 24 and the clip 25 are not limited to the installation places in this example, but
may be provided on other non-rotational parts.
In addition, when partial cleaning is performed on the flat plate member 24, the vibration force
of the ultrasonic wave is applied to the flat member 24, so that the material is preferably metal,
and to prevent deformation due to heat generation by the ultrasonic wave, It can also be made
into a structure which can be cooled by water supply with mesh structure.
[0068]
Next, the case where the vibrator case 4 is taken out and partially washed in the configuration of
FIG. 5 will be described.
[0069]
Since the main body side power line 9 is connected to the oscillation circuit 7 by the cord reel 8,
power can be supplied to the ultrasonic transducer 1 even in a state where the ultrasonic
vibration exciter 50 is removed.
[0070]
Therefore, the user first places the vicinity of the soiled portion of the clothes to be partially
cleaned in the clip 25 and applies a slight tension to the clothes while holding a part of the
clothes with one hand, a liquid only for the partial washing Apply detergent to the soiled area.
Further, in the case of worrying about clothes which can not be pinched by the clip 25, for
example, a slip or the like or wrinkles caused by pinching, the liquid detergent can be applied on
the flat plate member 24.
[0071]
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When the clothing is held by the clip 25, the user holds the ultrasonic vibrator 50 in one hand
and applies the partial washing switch 26 while applying tension to the clothing with one hand.
Power is supplied to the vibrator 1.
Therefore, the user can easily wash the part by rubbing the tip portion 3A of the vibrating horn 3
against the dirt of the clothes while lightly pressing it.
[0072]
On the other hand, in the case of the laundry where the clip 25 does not sandwich the clothes,
the soiled portion of the cloth is placed on the flat plate member 24, and the tip of the vibrating
horn 3 is lightened to the soiled portion of the cloth. You can easily wash parts by rubbing while
pressing.
[0073]
Also in the case of the second embodiment, if the ultrasonic vibration exciter 50 is mounted in
the case storage portion 12 of the washing machine upper cover 11, as in the case of the first
embodiment, partial washing is carried out in that state. And dissolution promotion of the
powder detergent 20 can be performed.
[0074]
According to the present invention, the following effects can be obtained.
[0075]
(1) According to the first aspect of the present invention, the operator can directly contact the
portion of the soiled portion of the laundry with the vibrating horn, so that partial washing can
be easily performed and sufficient partial washing can be performed. It can be performed.
In addition, since the tip of the vibrating horn is exposed to the outside at that time, the safety for
the operator is also improved.
[0076]
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15
(2) According to the second aspect of the invention, when the ultrasonic vibrator is used for
partial washing, the area of the washing portion can be cut, and the workability is improved.
[0077]
(3) According to the third aspect of the present invention, since the lead zirconate titanate-based
Langevin type vibrator is used, it is possible to increase the input of the vibrator corresponding
to the high output.
[0078]
(4) According to the fourth aspect of the present invention, the surface of the tip of the vibrating
horn is processed into a fine uneven shape, so that the cleaning effect can be enhanced.
[0079]
(5) According to the fifth aspect of the invention, since the resonance frequency of the ultrasonic
transducer is adjusted to 20 to 50 KHZ, the safety is improved.
[0080]
(6) According to the invention as set forth in claim 6, a seal member is mounted between the case
and the portion near the vibrator side of the vibrating horn, so that waterproofing to the vibrator
side is achieved. An effect is obtained.
[0081]
(7) According to the invention as set forth in claim 7, the ultrasonic vibrator is detachably
mounted on the washing machine main body, so the ultrasonic vibrator may be removed from
the washing main body if necessary. Because it can be used, convenience is enhanced.
[0082]
(8) According to the invention of claim 8, since the exposed portion of the tip of the vibrating
horn is exposed 1 mm from the tip of the case, the exposed vibrating horn can be brought into
contact with or in proximity to perform partial washing. The work of partial washing is easy, and
it is safe for workers.
[0083]
Brief description of the drawings
04-05-2019
16
[0084]
1 is a side sectional view showing the upper part of the full-automatic washing machine
according to Embodiment 1 of the present invention.
[0085]
2 is a perspective view showing the shape of the tip of the vibrating horn provided in the
washing machine of FIG.
[0086]
FIG. 3 is a flow chart for explaining the operation in the case where detergent dissolution and
partial washing are simultaneously performed in the washing machine.
[0087]
4 is a flowchart for explaining the operation in the case of performing partial washing in the
middle of normal washing in the washing machine of FIG.
[0088]
5 is a side sectional view showing the upper part of the full-automatic washing machine
according to Embodiment 2 of the present invention.
[0089]
6 is a side sectional view showing the upper part of the conventional full-automatic washing
machine.
[0090]
Explanation of sign
[0091]
DESCRIPTION OF SYMBOLS 1 ... Ultrasonic transducer, 2 ... Vibrating rod, 3 ... Vibrating horn, 4 ...
Vibrator case, 7 ... Oscillation circuit, 8 ... Cord reel, 9 ... Body side power wire, 11 ... Washing
machine upper cover, 12 ... Case Storage unit 13, Detergent charging box 15, Handle for opening
and closing 16, First partition plate, 17 Second partition plate, 18 Front panel, 19 Water supply
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port, 20 Powder detergent, 21 Water supply valve , 22: detergent water, 23: handle for attaching
and detaching the case, 24: flat plate member, 25: clip, 26: partial washing switch, 36: detergent
storage portion, 40: washing machine main body, 42: washing tub, 44: balance ring, 46: Support
shaft, 50: Ultrasonic vibrator.
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