JP2002035485A - Ultrasonic cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small and low power consumptive ultrasonic cleaning device capable of easily cleaning stained clothing at an usual home. SOLUTION: A device body 2 is vertically movably provided with regard to a backplate 30, an elastic member 41 is interposed between the device body 2 side and the backplate 30 side, and the device body 2 and the backplate 30 are urged in the direction of separation from each other by the elastic member 41. Therefore, by placing an object to be cleaned is placed on the top face of the backplate 30 and lowering the device body 2 against resilience of the elastic member 41, the tip of an ultrasonic hone can be contacted to the object to be cleaned. By connecting the backplate 30 to the device body 2, cleaning efficiency of the backplate 30 can be improved, the cleaning effect can be improved also by using a low power consumption ultrasonic vibration section. Therefore, a small, high performance home ultrasonic cleaning device can be realized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a household ultrasonic cleaning apparatus for cleaning, for example, textiles and textile products.

[0002]

2. Description of the Related Art Conventionally, as a technique for cleaning textiles or the like by using ultrasonic vibration, a stain removing apparatus disclosed in Japanese Patent Application Laid-Open No. 49-125691 is known. This stain removing device includes an ultrasonic generator and a case for performing suction inward, a plurality of small holes are formed in an upper wall of the case, and a shutter for closing the small holes is pressed on a lower surface of the upper wall of the case. It is configured to hit.

Another prior art is disclosed in Japanese Patent Laid-Open No.
One disclosed in Japanese Patent No. 328472 is known.
This conventional technique uses a cleaning liquid to clean an object to be cleaned (such as a textile product).
The transducer is also immersed, the vibrator is also placed in the cleaning liquid, and the ultrasonic vibration generated by the ultrasonic oscillator is propagated to the object to be cleaned. Is reflected to remove dirt and the like adhering to the object to be cleaned.

[0004]

However, Japanese Patent Laid-Open Nos. 49-125691 and 10-3 are disclosed.
The cleaning device using ultrasonic waves disclosed in Japanese Patent No. 28472 requires a case for sucking a cleaning liquid, a cleaning container for storing the cleaning device, and the like. Since the entire device is large, it takes up space and is easy to handle. It was difficult, and practical use in ordinary households was difficult.

Further, in such an ultrasonic cleaning apparatus, high power is required to obtain a large cleaning power, and therefore, a large ultrasonic vibrator is required. For this reason, the power supply and the ultrasonic wave generator become heavy in weight, and handling was actually inconvenient.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a small, safe, and lightweight ultrasonic cleaning device which can sufficiently exhibit the effect of ultrasonic cleaning and is convenient for home use.

[0007]

According to the present invention, an apparatus main body includes an ultrasonic vibrating section in which an ultrasonic vibrator and an ultrasonic horn are joined, and an object to be cleaned is brought into contact with the tip of the ultrasonic horn. In the ultrasonic cleaning apparatus for cleaning the object to be cleaned, the main body and the backing plate are integrally provided so as to be relatively movable, and the object to be cleaned is arranged on the backing plate. In this state, the tip of the ultrasonic horn can contact the object to be cleaned.

In the present invention having such a configuration, since the apparatus main body is integrally provided so as to be relatively movable with respect to the backing plate, the object to be cleaned is arranged on the backing plate. By bringing the apparatus body closer to the backing plate side, ultrasonic cleaning can be performed with the tip of the ultrasonic horn in contact with the object to be cleaned or while maintaining a predetermined distance. Since the object to be cleaned is stably arranged on the backing plate, the operation of ultrasonic cleaning becomes easy. Furthermore, the object to be cleaned can be subjected to a wide range of ultrasonic cleaning by moving along the surface of the backing plate between the backing plate and the tip of the ultrasonic horn. For this reason, since the backing plate itself does not require a large area, the entire cleaning device can be reduced in size and can be easily handled. In addition, since the backing plate is provided, it is possible to prevent the stains taken out of the object to be cleaned from reattaching due to high-speed vibration transmitted from the tip of the ultrasonic horn.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of an ultrasonic cleaning apparatus according to the present invention will be described below based on embodiments shown in the drawings.

(Embodiment 1) FIG. 1 is a side view showing Embodiment 1 of an ultrasonic cleaning apparatus according to the present invention. The ultrasonic cleaning apparatus 1 of the present embodiment includes an apparatus main body 2 and a backing plate 30.
And a guide rod 40 for relatively moving the device main body 2 and the backing plate 30, and an elastic member 41 for urging the device main body 2 and the backing plate 30 in a direction away from each other.

First, the configuration of the apparatus main body 2 will be described with reference to FIG. As shown in FIG. 2, the apparatus main body 2 includes an ultrasonic vibration unit 3, a vibration unit cover 4 surrounding the ultrasonic vibration unit 3, and a substantially cylindrical casing 5 made of a synthetic resin.

As shown in FIG. 2, the apparatus main body 2 has a casing 5 in which a battery housing 6, a drive circuit 7, a switch 8, a light-emitting diode 9 as a drive confirmation light, and the like are built. . The rear end (upper end) of the casing 5
Is provided with a back cover 10 for closing the battery housing 6. On the other hand, an ultrasonic vibration unit 3 is supported at a front end (lower end) of the casing 5. The front end of the casing 5 is formed in a cylindrical shape, and the above-mentioned vibrating section cover 4 is screwed into the casing 5. Further, a support arm 23 extending laterally is provided integrally on a side portion of the casing 5.

The ultrasonic vibration section 3 is supported by a front end opening 11 of the casing 5 via a flange member 13.
The ultrasonic vibrating unit 3 includes a Langevin type ultrasonic vibrator 16 in which piezoelectric bodies 14 and 15 are bonded, a rear ultrasonic horn 17 bonded to a rear end surface of the ultrasonic vibrator 16,
A front ultrasonic horn 18 having a predetermined length is joined to the front end face of the ultrasonic transducer 16. The rear ultrasonic horn 17 and the front ultrasonic horn 18 are connected to the ultrasonic vibrator 1.
Although it is divided before and after 6, an ultrasonic horn is constituted by providing both. Rear ultrasonic horn 17
The front ultrasonic horn 18 is formed of a metal that easily transmits vibration in order to change the vibration of the ultrasonic vibrator 16 to a specific frequency or to strengthen the vibration. The front ultrasonic horn 18 is set so as to protrude forward from the front end of the casing 5. Furthermore, electrodes (not shown) are connected to the piezoelectric bodies 14 and 15, so that power can be supplied from a power supply.

In the first embodiment, the mounting position of the flange member 13 in the ultrasonic vibration section 3 is as follows.
This is the position where the node of vibration exists, and specifically,
Is set on the front side. In the present embodiment, by supporting the position corresponding to the node of the vibration of the ultrasonic horn, a holding structure with a small attenuation of the ultrasonic vibration can be obtained.

Next, the configuration of the vibrating section cover 4 will be described. On the front side of the rear part 4A of the vibrating part cover 4, a cover part 20 formed so as to surround the front ultrasonic horn 18 protruding from the casing 5, and a grip part 21 formed so as to surround the cover part 20 are provided. Is provided. The outer diameter of the cover portion 20 is set so as to be gradually shortened downward. Opening edge 20 at the tip of cover 20
A includes an article guide ring 22 having a substantially circular cross section.
Is formed so as to go around. Then, by screwing the rear part 4A of the vibration part cover 4 to the front end of the casing 5, the flange member 13 is sandwiched between the end face of the front end opening 11 of the casing 5 and the vibration part cover 4, and the ultrasonic vibration part 3 is held. As shown in FIG. 2, the front ultrasonic horn 18 is not in contact with the cleaning object guide ring portion 22 and the cover portion 20 surrounding the front ultrasonic horn 18.
The ultrasonic vibration of the front ultrasonic horn 18 is hardly attenuated.

Next, the backing plate 30 will be described. As shown in FIG. 3, the backing plate 30 is formed by processing a metal formed in a mesh shape into a circular or rectangular shape. The backing plate 30 has a fine mesh structure in the range of # 5 to 2,400. The strength of the backing plate 30 is 0.03 to 15 g / mm ² (33
mm2 multiplied by ¹ to 500 g), and the thickness dimension is such that the workability is not impaired.
0 mm is desirable. In the first embodiment, a metal backing plate 30 as shown in FIG. 3 is used. However, as shown in FIG. 4, a porous backing plate 30A made of, for example, a synthetic resin or ceramic is used. Is also good. Although not shown, the form in which gloves are attached and fixed to the backing plate improves workability.

The backing plate 30 is fixed at a predetermined position on the base 31. In the base 31, in a region where the backing plate 30 is placed, a cleaning solution discharge groove 31 </ b> A for removing the cleaning solution that has passed through the backing plate 30 is formed. The guide rod 40 described above is erected on the base 31. The end of the support arm 23 is fitted to the guide rod 40 so as to be slidable in the vertical direction. Further, an elastic member (coil spring) 41 is interposed between the support arm 23 and the base 31 so as to urge the support arm 23 upward. Therefore, in order to lower the apparatus main body 2 toward the backing plate 30, it is necessary to push the support arm 23 downward by hand against the urging force of the elastic member 41. Further, in order to separate the apparatus main body 2 from the backing plate 30, only by releasing the hand from the support arm 23 or the apparatus main body 2, the apparatus main body 2 is automatically separated by the urging force of the elastic member 41. Reference numeral 42 in FIG. 1 is a stopper member for preventing the support arm 23 from being detached from the guide rod 40.

In the first embodiment, the ratio of the area a of the tip of the ultrasonic horn 18 to the projection area b of the backing plate 30 when the tip of the front ultrasonic horn 18 is applied to the backing plate 30. Is set to be 0.7 <b / a <1.

In this embodiment, a spring member is used as the elastic member 41. However, a leaf spring, a coil spring, and other various elastic members formed of a material having an elastic effect such as metal, rubber, or plastic may be used. Can be.

The configuration of the ultrasonic cleaning apparatus 1 according to the first embodiment has been described above. Next, the operation method, operation, and operation of the ultrasonic cleaning apparatus 1 will be described.

In the case of cleaning clothes, for example, using the ultrasonic cleaning apparatus 1 of the present embodiment, the clothes to be cleaned are placed on the backing plate 30 and the apparatus main body of the ultrasonic cleaning apparatus 1 is placed. 2 or by pushing the support arm 23 downward by hand, the tip of the front ultrasonic horn 18 can be brought into contact with the object to be cleaned. By turning on the switch section 8 in this state, the ultrasonic vibration section 3 can be driven. The object to be cleaned may be temporarily immersed in the cleaning liquid to contain the cleaning liquid, or the cleaning liquid may be supplied at any time during the cleaning. The ultrasonic vibration on the front end surface 18A of the front ultrasonic horn 18 propagates to the cloth surface via the cleaning liquid, and can remove dirt and stains.

At this time, the cleaning liquid from which dirt and stains have been removed passes through the fine mesh holes of the backing plate 30 through the backing plate 30.
And flows through the cleaning liquid discharge groove 31 </ b> A formed in the base 31 and is discharged to the outside of the base 31.

By moving the object to be cleaned on the backing plate 30, the object to be cleaned can be cleaned over a wide range. After the cleaning is completed, the elastic member 4 is released by releasing the hand from the apparatus main body 2 or the support arm 23.
The apparatus main body 2 is automatically raised by the repulsive force of 1. The operator only has to move the object to be cleaned along the upper surface of the backing plate 30. At this time, since the apparatus main body 2 is in the raised state, the operation of moving the object to be cleaned does not interfere. Therefore, in the first embodiment, the efficiency of the cleaning operation can be improved.

In the first embodiment, a battery housed in the battery housing 6 is used as a power source. However, for example, a power jack may be provided and an external power source may be connected to the power jack. It is. Also, the support arm 23
And the switch unit 8 can be linked.

Next, the evaluation result of the cleaning effect performed by using the ultrasonic cleaning apparatus 1 of Embodiment 1 will be described.

The measurement method is as follows. A cloth soaked in water is washed with a sample piece obtained by soiling a white cotton cloth with mud using the present ultrasonic cleaning apparatus 1; Patch plate 3
The measurement was performed when the substrate was cleaned with an ultrasonic cleaning device not using 0. The washing time was measured while applying 10 cc of water. In this measurement, the cleaning range of the cloth was set to 40 × 40 mm. After washing, water washing, drying and ironing were performed. Thereafter, the light reflectivity was measured (using a Minolta CM-3500d reflectometer). In this measurement, a higher light reflectance indicates a higher detergency.

First, the output of the ultrasonic vibrator 16 composed of the piezoelectric bodies 14 and 15 was 8 W and the frequency was 30 kHz. As shown in Table 1 below, when the backing plate 30 was not used, the reflectance (cleaning rate) of 52.0% was obtained.
53.6 in the case where the ultrasonic cleaning device 1 having 0 is used.
% Reflectance.

Here, the cleaning rate is (reflectance after cleaning−reflectance of contaminated cloth) / (reflectivity of original cloth−reflectance of contaminated cloth) ×
It can be represented by 100. As a result, the higher the reflectance after cleaning, the higher the cleaning rate. When the cleaning rate changes by 1%, it becomes impossible to determine whether or not dirt is present, so that a difference is generated particularly at a high cleaning rate, and the feeling becomes similar to that of a new one.

Next, the results obtained by measuring the above-mentioned apparatus using a cylindrical bolt-fastened Langevin vibrator having a diameter of 6.5 mm at an output of 8 W and a frequency of 50 kHz, and comparing the above-mentioned apparatus with a diameter of 15 mm in the above-mentioned apparatus. Output using a cylindrical bolt-fastened Langevin vibrator
Table 1 shows the results obtained by measuring W at a frequency of 60 kHz.

[0030]

[Table 1] When the frequency is 60 kHz as described above, the backing plate 3
When 0 was not used, the reflectance was 48.2% (correlated with the degree of cleaning), and when the ultrasonic cleaning apparatus 1 having the backing plate 30 was used, the reflectance was 49.7%. Thus, it can be seen that the use of the backing plate 30 enhances the cleaning effect. In addition, the cleaning time was 1 minute when the backing plate 30 was not used, whereas it was 30 seconds when the backing plate 30 was used, indicating that the cleaning time could be reduced to half.

(Embodiment 2) FIGS. 5 and 6 show an ultrasonic cleaning apparatus according to Embodiment 2 of the present invention. In addition,
The configuration of the ultrasonic vibration unit according to the second embodiment is the same as that of the first embodiment, and a description thereof will not be repeated. In the ultrasonic cleaning device 50 of the second embodiment, the ends of the device main body 51 and the lower arm 53 having the backing plate 52 are supported by a support shaft 54.
It is configured to be rotatable. The device main body 51 is provided with an arm portion 55 having a drive circuit 7 and a battery storage portion 6 and a horn storage portion 56 that is bent with respect to the arm portion 55. The ultrasonic vibrating section 3 is disposed at the center. Also, the lower arm 53
In the vicinity of the support shaft 54, a spring piece 59 is provided as an elastic member that stands obliquely toward the arm portion 55.

On the other hand, the lower arm 53 includes a bent portion 57 and a base 58 supporting the backing plate 52. As shown in FIG. 5, the backing plate 52 supported by the arm 53 and the front end surface of the front ultrasonic horn of the apparatus main body 51 are rotated so that they are close to each other with the support shaft 54 as a fulcrum. The position is set so that when it touches.

In the second embodiment, in the state shown in FIG. 5, cleaning can be performed with an object to be cleaned interposed between the device horn 51 and the backing plate 52. In this case, the arm 55
The ultrasonic cleaning is performed while holding the object A to be cleaned while holding the base portion 58 by hand. For this reason, the apparatus main body 2 and the lower arm 5
It is preferable that an elastic member is provided on the support shaft 54 so that the support member 3 and the support member 3 are urged in directions away from each other. With such a configuration, the distance between the apparatus main body 2 and the backing plate 52 can be adjusted by relaxing the force held by the hand, and the object A to be cleaned can be easily moved.

The mode of use shown in FIG. 5 is suitable for cleaning the periphery of a cloth or the like to be cleaned A, and is shown in FIG. 6 for cleaning the center of a cloth having a large area. As described above, the apparatus main body 51 and the lower arm 53 can be used in an expanded state. In this case, a wide range of ultrasonic cleaning can be performed by moving the apparatus main body 51 while pressing the front end thereof against the object A to be cleaned.

(Embodiment 3) Next, the configuration of an ultrasonic cleaning apparatus according to Embodiment 3 of the present invention will be described with reference to FIG.

As shown in FIG. 7, the ultrasonic cleaning apparatus 60 according to the present embodiment has substantially the same configuration as that of the second embodiment. The ultrasonic cleaning device 60 has a configuration in which an apparatus main body 61, a lower arm 63 having a backing plate 62, and ends of the apparatus main body 61 and the lower arm 63 are rotatably supported by a support shaft 64. The device main body 61 is provided integrally with an arm portion 65 having a drive circuit 7 and a battery storage portion 6 and a horn storage portion 66 bent with respect to the arm portion 65. The ultrasonic vibrating section 3 is disposed at the center. In the vicinity of the support shaft 54, an elastic member that urges the arm portion 65 and the lower arm 63 in a direction in which the lower arm 63 expands is provided. Further, the lower arm 63 is
7 and a base 68 supporting the backing plate 62.
At the tip of the horn housing portion 66 of the apparatus main body 61, a spacer 66A protruding to the same extent as the tip of the front ultrasonic horn 18 is provided.
Are formed. FIG. 8 is an enlarged side view illustrating the positional relationship between the front ultrasonic horn 18 and the spacer 66A with respect to the backing plate 62.

As shown in FIG. 8, the front ultrasonic horn 18
Of the front ultrasonic horn 18 is too strong against the cloth placed on the backing plate 62 because the front end of the front ultrasonic horn 18 contacts the backing plate 62 together with the spacer 66A. Can be prevented. As a result, the tip of the front ultrasonic horn 18 can be set so as to abut against the cloth with an appropriate pressing force, and good cleaning can be performed.
FIG. 9 shows a modification of the third embodiment. In this modification, since the spacer 66B protrudes from the tip of the front ultrasonic horn 18, the front ultrasonic horn 18
Can be prevented from directly contacting the cloth.
Therefore, when performing the ultrasonic cleaning while supplying the cleaning liquid, it is possible to secure a space where the cleaning liquid is interposed between the front ultrasonic horn 18 and the cloth.

FIG. 10 shows another modification of the third embodiment. In this modified example, a spring piece 70 as a V-shaped elastic member is protruded from the tip of the horn storage section 66. And when the tip of the front ultrasonic horn 18 abuts on the cloth placed on the backing plate 62, the spring piece 70
The arm portion 65 and the lower arm 63 are urged in a direction to expand. For this reason, the contact of the tip of the front ultrasonic horn 18 with the cloth is prevented from becoming too strong.

Although the first to third embodiments have been described above, the present invention is not limited to this, and various changes accompanying the gist of the configuration are possible. For example,
In the first and second embodiments described above, the backing plate 3
Although a metal processed into a mesh shape was used as 0, 52, and 62, a backing plate having a porous structure made of a synthetic resin or ceramics may be used. When a metal is used as the material of the backing plate, it is desirable to use a material that is resistant to corrosion, such as stainless steel.

In the first embodiment described above, the ultrasonic cleaning apparatus is driven and stopped by appropriately operating the switch 8. However, when the apparatus main body 2 is lowered, the ultrasonic vibration unit 3 is activated. It may be configured to include a limit switch or the like so as to be driven and stop driving when the apparatus main body 2 is raised.

[0041]

As is apparent from the above description, according to the first aspect of the present invention, the apparatus main body and the backing plate are integrally connected so as to move relatively, so that the apparatus main body can be moved. The tip of the ultrasonic horn can be easily and reliably brought into contact with the object to be cleaned placed on the backing plate. This allows
The operability of the apparatus main body can be improved, and the cleaning effect can be improved by the backing plate. Further, since there is no need for a case for sucking the cleaning liquid or a cleaning container for holding the cleaning device, the size of the entire device can be reduced.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the connecting member is freely movable, the apparatus main body and the backing plate can be freely moved toward and away from each other. it can.

According to the third aspect of the invention, in addition to the effects of the first and second aspects of the present invention, the backing plate has a mesh structure or a porous structure. Cleaning liquid supplied from the backing plate can be discharged to the back side or the side surface through the inside of the backing plate. For this reason, the cleaning liquid can be prevented from staying on the surface of the backing plate, and there is an effect of increasing the cleaning efficiency.

According to the invention described in claim 4, claims 1 to 1 are provided.
In addition to the effect of the invention described in claim 3, the tip of the ultrasonic horn of the apparatus main body is strong against the object to be cleaned by urging the apparatus main body and the backing plate to be separated from each other by the elastic member. The contact can be prevented, and the cleaning efficiency can be improved.

According to the fifth aspect of the present invention, the apparatus main body is movable up and down with respect to the backing plate, and the apparatus body and the backing plate are urged by the elastic member in a direction away from each other. When the cleaning is temporarily stopped or ended after the main body is lowered to the backing plate side, the apparatus main body can be easily separated from the backing plate, and the workability can be improved.

According to the invention described in claim 6, an appropriate space can be interposed between the apparatus main body and the backing plate.
The cleaning effect can be enhanced.

According to the seventh aspect of the present invention, the cleaning efficiency of the ultrasonic horn is improved by optimizing the area of the tip surface of the ultrasonic horn.

According to the eighth aspect of the present invention, since it can be used with low power consumption and can be driven by a battery, there is an effect of enhancing portability and convenience in cleaning work.

[Brief description of the drawings]

FIG. 1 is a side view showing Embodiment 1 of an ultrasonic cleaning device according to the present invention.

FIG. 2 is a sectional view of a main part of an apparatus main body in the ultrasonic cleaning apparatus according to the first embodiment.

FIG. 3 is a perspective view of a backing plate used in the ultrasonic cleaning device of the first embodiment.

FIG. 4 is an enlarged explanatory view showing another example of the backing plate.

FIG. 5 is a side view showing an example of use of Embodiment 2 of the ultrasonic cleaning apparatus according to the present invention.

FIG. 6 is a side view showing another example of use of the ultrasonic cleaning device of the second embodiment.

FIG. 7 is a side view showing Embodiment 3 of the ultrasonic cleaning apparatus according to the present invention.

FIG. 8 is an enlarged side view of a main part of the second embodiment.

FIG. 9 is an enlarged side view of a main part showing a modification of the second embodiment.

FIG. 10 is an enlarged side view of a main part showing another modification of the second embodiment.

FIG. 11 is an enlarged side view of a main part showing another modification of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ultrasonic cleaning apparatus 2 Device main body 3 Ultrasonic vibrating part 4 Vibrating part cover 5 Casing 18 Front ultrasonic horn 18A Tip surface 23 Support arm 30, 30A, 52, 62 Backing plate 31 Base 40 Guide rod 41, 59 , 69 Elastic member 50 Ultrasonic cleaning device 51 Device main body 53, 63 Lower arm

Continuing from the front page (72) Inventor Takahisa Yamashiro 2606 Kabane-cho, Akaga-cho, Haga-gun, Tochigi Prefecture Inside the Kao Corporation Research Laboratory (72) Inventor Masayasu Sato 2606, Kaiga-cho, Akaba-cho, Haga-gun, Tochigi Prefecture Kao Corporation Laboratory F-term (reference) 3B155 AA02 CA11 CC20 CD04 CD20 5D107 AA13 BB11 CC04 CC10 FF01 FF05 FF10

Claims (8)

[Claims] An apparatus main body is provided with an ultrasonic vibrating section in which an ultrasonic vibrator and an ultrasonic horn are joined, and a cleaning target is brought into contact with a tip of the ultrasonic horn to clean the cleaning target. In the ultrasonic cleaning apparatus to be performed, the apparatus main body and the backing plate are integrally provided so as to be relatively movable, and the ultrasonic wave is applied in a state where the object to be cleaned is arranged between the backing plate and the apparatus main body. An ultrasonic cleaning device, wherein a tip of a horn can contact the object to be cleaned. 2. The ultrasonic cleaning apparatus according to claim 1, wherein the apparatus main body and the backing plate are supported via a connecting member, and the connecting member is freely movable. 3. The backing plate according to claim 1, wherein the backing plate has a mesh structure or a porous structure.
The ultrasonic cleaning device according to item 1. 4. The coupling member comprises a support shaft for rotatably supporting the backing plate and the apparatus main body, and the support shaft separates the backing plate and the apparatus main body from each other. 4. The ultrasonic cleaning apparatus according to claim 1, further comprising an elastic member that urges in a direction in which the ultrasonic cleaning is performed. 5. The apparatus main body is provided so as to be able to move up and down with respect to the backing plate, and an elastic member is interposed between the apparatus main body side and the backing plate side. The ultrasonic cleaning apparatus according to any one of claims 1 to 3, wherein the backing plate and the backing plate are urged away from each other. 6. The apparatus according to claim 1, wherein a spacer is interposed between the backing plate and the apparatus main body to maintain a clearance between the object to be cleaned and a tip of the ultrasonic horn. The ultrasonic cleaning device according to claim 5. 7. The ratio of the area a of the tip of the ultrasonic horn and the projected area b of the backing plate when the tip of the ultrasonic horn is applied to the backing plate is 0.7 <b / 7. The ultrasonic cleaning apparatus according to claim 1, wherein a <1. 8. The ultrasonic cleaning apparatus according to claim 1, wherein the apparatus main body is driven by an electric power of 8 W or less and can be driven by a battery.