JP2009000422A - Ultrasonic ion toothbrush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To always effectively oscillate a brush portion with ultrasonic wave while securing ion function. <P>SOLUTION: A main body portion 10 is mounted with an ultrasonic transmitter 62 and an electrode 15 on the hand side. The end of an attached leg portion 20 extending from the main body portion 10 is loaded with an ultrasonic transducer 21 and a metal oscillating plate 22, which are integrated with each other. The outer periphery of the attached leg portion 20 is detachably fitted with a brush porion 30 having an electrode/oscillated body 31 on the brush side, and in an attached state, the electrode/oscillated body 31 and the oscillating plate 22 are brought into contact with each other. A negative-side output terminal of the ultrasonic transmitter 62 is connected to the oscillating plate 22 of the ultrasonic transducer 21, and positive-side output terminal of the ultrasonic transmitter 62 is connected to the side opposite to the oscillating plate 22 of the ultrasonic transducer 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an ultrasonic ion toothbrush using ultrasonic waves and ionic action.

  In some toothbrushes, as shown in Patent Document 1, a brushing effect is enhanced by a cavitation effect by ultrasonic waves and a plaque decomposition effect by ionic action. In this patent document 1, in order to give ultrasonic vibration to the brush part, the main body part grasped by fingers is vibrated by receiving signals from the ultrasonic signal generating means and the ultrasonic signal generating means. Equipped with an ultrasonic transducer, while holding a metal elongated horn connected to the ultrasonic transducer so that it protrudes from the tip of the main unit, the brush unit surrounds the horn It is the one that is detachably fitted to the part. That is, the vibration of the ultrasonic vibrator in the main body is transmitted to the brush part via the horn.

  In the thing of the said patent document 1, in order to obtain an ion effect | action, the ion current control part which performs generation | occurrence | production of an ionic current and adjustment of the magnitude | size of an electric current is provided in a main-body part, On the other hand, the brush side electrode (minus side) is provided so as to be exposed to the outside while being in contact with the horn when attached to the horn. Electrode). The positive output terminal of the ion current control unit is connected to the hand side electrode, while the negative output terminal of the ion current control unit is connected to the brush side electrode via the horn. In this way, the horn serves as both an ultrasonic vibration transmission function and a function as an ion current supply path.

JP 2004-41684 A

  By the way, in the thing of the above-mentioned patent document 1, since the transmission of the ultrasonic vibration from an ultrasonic transducer | vibrator to a brush part is performed via an elongate horn, the following various problems arise. In other words, in order to ensure the transmission effect of ultrasonic vibration to the brush part, it is necessary to firmly attach the horn to the main body part so as not to rattle, but to make the horn vibrate sufficiently. Then, it is necessary to increase the strength of vibration generated by the ultrasonic vibrator, and accordingly, the ultrasonic vibrator and the ultrasonic signal generating means are increased in size (which also leads to an increase in the size of the main body). In addition, every time the brush part is attached or detached, the brush part is brought into contact with or separated from the horn in the radial direction. The problem of simple transmission becomes more prominent.

  Furthermore, when the brush portion is mounted so as to surround the horn, the horn receives a considerable amount of external force in the bending direction due to the contact of the brush side electrode. The magnitude of this external force changes the mounting of the brush portion. Since it changes slightly every time, it is difficult to always apply ultrasonic vibration having a desired strength to the brush portion. In order to avoid such a problem, it can be considered that the brush side electrode is set to be very lightly contacted with the horn. In this case, however, the horn also serves as an ion current supply circuit. This may cause another problem that it is difficult to reliably function the brush side electrode as a negative electrode.

  The present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide an ultrasonic ion toothbrush in which the brush portion can always be effectively ultrasonically vibrated while reliably obtaining an ionic action. And providing a manufacturing method thereof.

In order to achieve the above object, the following solution is adopted for the ultrasonic ion toothbrush according to the present invention. That is, as described in claim 1 in the claims,
A body part equipped with an ultrasonic signal generating means inside and a hand side electrode exposed to the outside,
A mounting leg that is elongated from the tip of the main body and is equipped with an ultrasonic transducer and a metal oscillation plate in contact with the tip,
A brush part provided with a brush-side electrode and receiving body in a state of being detachably fitted to the outer periphery of the mounting leg part and exposed to the outside,
With
The oscillation plate is exposed to the outside of the mounting leg so as to cover the ultrasonic transducer,
The brush side electrode and vibration receiving body and the oscillation plate are positioned so that they are brought into contact with each other when the brush part is fitted to the mounting leg part,
One side of the ultrasonic transducer that is a contact surface with the oscillation plate is connected to the negative output terminal of the ultrasonic signal generating means,
The other surface side of the ultrasonic transducer and the proximal electrode are connected to a positive output terminal of the ultrasonic signal generating means,
It is like that.

  According to the above solution, the ultrasonic vibrator is vibrated by the input of the ultrasonic signal from the ultrasonic signal generating means, and the vibration of the ultrasonic vibrator is resonated by the oscillation plate, and the brush It is effectively transmitted to the side electrode / receiver, that is, the brush portion. In particular, since the ultrasonic vibrator, the oscillation plate, and the brush-side electrode / receiver are located very close to each other, the brush portion can be effectively ultrasonically vibrated. Further, the ion current (current for obtaining the ion action) is surely transmitted to the brush side electrode / vibrator through the oscillation plate. In addition, since the current for obtaining the ion action is generated by the ultrasonic signal generating means, it is preferable in terms of cost and downsizing of the main body as compared with the case where the ion current generating means is provided separately. It becomes. To connect the ultrasonic transducer to the negative output terminal of the ultrasonic signal generating means, connect the negative connection cord connected to the negative output terminal of the ultrasonic signal generating means directly to the ultrasonic transducer. Although it may be connected, it can also be connected to an oscillation plate.

Preferred embodiments based on the above solution are as described in claims 2 to 7 in the claims. That is,
Brush hair is attached to the brush side electrode and vibration receiving body,
In a state where the brush part is attached to the attachment leg part, the brush side electrode and vibration receiving body and the ultrasonic vibrator are set to be in a state of sandwiching the oscillation plate.
(Corresponding to claim 2). In this case, the ultrasonic vibrator and the brush-side electrode / vibrator are positioned very close to the bristle with the oscillating plate to be resonated between them while the brush-side electrode / vibrator is functioning as a bristle mounting portion. As an approaching structure, ultrasonic vibration can be transmitted to the brush hair very effectively.

The mounting leg portion is configured to have an inner hole communicated with the main body portion,
A plus-side cord and a minus-side cord connecting the ultrasonic signal generating means and the ultrasonic transducer are respectively disposed through the inner holes of the mounting legs.
(Corresponding to claim 3). In this case, each cord can be easily disposed by effectively using the inner hole in the mounting leg portion.

The mounting leg is formed separately from the main body and integrated with the main body,
Each of the mounting leg portion and the main body portion is configured by joining divided members having a split structure in the radial direction.
(Corresponding to claim 4). In this case, since the mounting leg portion and the main body portion are each divided into two in the radial direction, the parts to be incorporated are assembled in one of the divided members in advance, and then the other divided member is attached to the mounting leg portion and the main body portion. What is necessary is just to integrate with respect to one division | segmentation member, and it becomes very effective in improving the assembly | attachment property to a mounting leg part or a main-body part. In addition, the manufacturing of the mounting legs and the main body itself is easier than the case of forming all at once without using a divided structure, and the mold structure for that is simple and preferable for manufacturing at low cost. It becomes.

The brush portion is configured by joining divided members divided into two in the radial direction,
The brush-side electrode and vibration receiving body is provided integrally with one of the two divided members on the side where the brush hair is provided,
(Corresponding to claim 5). In this case, after assembling the brush-side electrode and vibration receiving body in advance with respect to one of the divided members, the other divided member can be integrated with the one divided member. Is preferable.

  A current control unit is connected between the proximal electrode and the plus output terminal of the ultrasonic signal generating means (corresponding to claim 6). In this case, the magnitude of the flowing ionic current can be set to a desired magnitude range by the current control unit. Note that the current control unit is not required to have a function of generating the ionic current itself, and thus is smaller and less expensive than the case of having an ionic current generation function.

  The ultrasonic transducer is connected to the negative output terminal of the ultrasonic signal generating means via the oscillation plate (corresponding to claim 7). In this case, the oscillation plate can effectively function as an electrode on one side of the ultrasonic transducer, and the minus side cord for connecting to the minus side output terminal of the ultrasonic signal generating means can be easily connected. This is also preferable.

In order to achieve the above object, the following solution technique is adopted in the method of manufacturing an ultrasonic ion toothbrush according to the present invention. That is, as described in claim 8 in the claims,
A method of manufacturing the ultrasonic ion toothbrush according to claim 1,
The ultrasonic transducer and the oscillation plate with respect to the first mounting leg part split member for forming the mounting leg part formed separately from the main body part and split in the radial direction into two parts And a first step of obtaining a state in which a plus side cord and a minus side cord are connected to the ultrasonic transducer,
After the first step, a second mounting leg split member for constituting the mounting leg is joined to the first mounting leg split member, and the cords are respectively connected from the base end to the outside. A second stroke constituting the mounting leg in an exposed state;
The ultrasonic signal generating means is incorporated into the first main body part dividing member for constituting the main body part divided in the radial direction, and the positive output terminal of the ultrasonic signal generating means is connected to the positive output terminal. A third step of connecting the plus side cord and obtaining a state in which the minus side cord is connected to the minus side output terminal of the ultrasonic signal generating means;
After the third step, a fourth step of joining a second main body part dividing member for constituting the main body part to the first main body part dividing member;
After the fourth step, a fifth step of joining the mounting leg portion to the main body portion;
It is supposed to be equipped with.

  According to the said solution technique, the preferable manufacturing method of the ultrasonic ion toothbrush of Claim 1 and Claim 3 is provided.

A preferred mode based on the above solution is as described in claim 9 in the scope of claims. That is,
In the main body portion, a rechargeable battery and a motor for giving a pseudo vibration for making the human body sense are incorporated,
In the third step, the rechargeable battery and the motor are incorporated into the first main body part dividing member.
(Corresponding to claim 9). In this case, since a large member such as a rechargeable battery or a motor provided in the main body portion is assembled to the first main body portion dividing member in advance before the second main body portion dividing member is integrated, it is easier to manufacture the main body portion. This is preferable in view of the above.

  ADVANTAGE OF THE INVENTION According to this invention, ultrasonic vibration can be effectively given to a brush part over a long period, making it possible to supply an ionic current reliably to a brush part. In addition, the ultrasonic signal generating means also serves as an ion current generating means, which is preferable in terms of cost and miniaturization.

  1 and 2, reference numeral 10 denotes a main body portion, 20 denotes a mounting leg portion, and 30 denotes a brush portion. The main body 10 and the mounting leg 20 are integrated with each other, and the mounting leg 20 extends from the tip of the main body 10 to be elongated. The brush part 30 is formed separately from the main body part 10 and the mounting leg part 20, and is detachably fitted to the outer periphery of the mounting leg part 20, and the fitted mounting state is shown in FIG. The removed state shown in FIG. 1 and disengaged is shown in FIG. As will be described later, after the main body portion 10 and the mounting leg portion 20 are assembled separately, the base end portion of the mounting leg portion 20 is integrated with the distal end portion of the main body portion 10. (For example, integration with a fixture such as an adhesive, heat fusion, or a screw).

  The main body 10 has a bottomed cylindrical shape whose base end is closed, and is roughly divided into a rechargeable battery 11 and a charging coil for indirectly supplying a charging current to the rechargeable battery 11. 12, a control board 13, a motor 17, and a current control board 18 for ionic current control are incorporated. The motor 17 is for giving a pseudo vibration (vibration whose frequency is sufficiently smaller than the ultrasonic vibration) to make the user (human body) holding the main body 10 feel the vibration. It is set as the structure which attached the weight eccentrically. The main body 10 is provided with an ON / OFF switch 14, a proximal electrode 15 serving as a positive electrode, and an operation confirmation lamp 16 comprising LEDs so as to be exposed to the outside. Yes. The hand side electrode 15 is positioned so as to come into contact with the finger when the main body 10 is gripped with a finger for brushing teeth. The lamp 16 is turned on when the ultrasonic vibration is generated when the switch 14 is turned on and the ion current is supplied, and is turned off when the switch 14 is turned off. .

  As shown in FIG. 9, the main body 10 (main body casing) is formed of a synthetic resin and is divided into two parts in the radial direction, and has a first main body part dividing member 10A and a second body having a substantially semicircular cross section. The main body division member 10B is integrated with each other by a fixture such as adhesion, heat fusion, or screws. Such a main body 10 can be manufactured as follows, for example. That is, as shown in FIG. 9, the rechargeable battery 11, the charging coil 12, the control board 13, the first main body part dividing member 10 </ b> A before being integrated with the second main body part dividing member 10 </ b> B, The hand side electrode 15, the motor 17, and the current control board 18 are incorporated. On the other hand, the switch 14 and the lamp 16 are incorporated in advance in the second main body dividing member 10B. Then, the main body 10 as shown in FIGS. 1 and 2 is obtained by integrating the second main body dividing member 10B with the first main body dividing member 10A. In addition, from the viewpoint of facilitating assembly work for integration with the mounting legs 20 described later, for the plus side output terminal of the ultrasonic signal generating means described later configured on the control board 13, One end of the second plus side cord 45 is connected, one end of the second minus side cord 46 is connected to the minus side output terminal, and the other end of each cord 45, 46 is attached to the mounting leg 20. In order to connect to the cords 41 and 42 extending from the main body 10, the main body 10 is positioned near the tip.

  Details of the brush unit 30 are shown in FIGS. In the embodiment, the brush portion 30 is formed of a synthetic resin and has a radially divided structure, and the first brush portion dividing member 30A and the second brush portion dividing member 30B are bonded or heated to each other. It is configured by fusing. The brush portion 30 is formed in a cylindrical shape with the distal end portion (left end portion in FIG. 3) closed and the proximal end portion opened, and when fitted to the attachment leg portion 20 (at the time of attachment), The mounting leg side 20 is inserted into the inner hole 30a.

  A brush-side electrode and vibration receiving body 31 is integrated with the head portion 30 b formed at the tip of the brush portion 30. The brush side electrode / vibrator 31 is made of a metal such as stainless steel or duralumin, for example, and one surface side thereof is exposed to the inner hole 30a, and the other surface side is exposed to the outside. A plurality of mounting holes 32 are formed in the brush-side electrode / vibrator 31 so as to open toward the outside. In addition, a large number of mounting holes 33 are formed around the brush-side electrode / vibrator 31 in the head portion 30b so as to open toward the outside. Brush hairs 34 are planted in the mounting holes 32 and 33, respectively. The brush-side electrode / vibrator 31 and the mounting holes 33 and 34 are provided only in the first brush part dividing member 30A. FIG. 4 shows an arrangement example of the attachment holes 33 and 34 in a state where the brush hairs 34 are removed together with the brush-side electrode / vibrator 31.

  In order to manufacture the brush part 30, first, the brush-side electrode / vibrator 31 is previously attached to the first brush part dividing member 30A in a state before the brush part dividing members 30A and 30B are integrated. At the same time as attaching (integrating), a state in which the brush hairs 34 are implanted in the respective attachment holes 33 and 34 is obtained. Thereafter, the two brush part dividing members 30A and 30B are integrated, and the brush part 30 in the state shown in FIGS. 1 and 2 is obtained. In addition, the brush part 30 can also be integrally molded, without setting it as the 2 division | segmentation structure of 30A and 30B.

  5 to 7 show the mounting leg portion 20 in a state before being integrated with the main body portion 10, and particularly FIG. 7 shows an exploded structure thereof. The mounting leg 20 is made of synthetic resin and has a radially divided structure, and the first mounting leg split member 20A and the second mounting leg split member 20B are bonded to each other by an adhesive and heated and melted. It is integrated by wearing. Such a mounting leg 20 is formed in a cylindrical shape with the distal end closed and the proximal end opened, and has an inner hole 20a. When the mounting leg 20 is integrated with the main body 10, the inner hole 20 a communicates with the main body 10 as shown in FIG. 11.

  An ultrasonic vibrator 21 and an oscillating plate 22 are incorporated at the tip of the mounting leg 20. The ultrasonic vibrator 21 is composed of a known appropriate member (for example, piezoelectric ceramic), and is ultrasonically vibrated by applying a voltage between both surfaces. The oscillation plate 22 is made of a metal such as stainless steel or duralumin, and resonates when the ultrasonic vibrator 21 is vibrated. The oscillation plate 22 is fixed to the mounting leg 20 with one surface side exposed to the outside. Yes. The ultrasonic vibrator 21 is integrated with the other surface side of the oscillation plate 22, that is, the surface on the inner hole 20 a side by an adhesive having conductivity and dielectric properties (soldering or metal screw). An integration method such as integration using a fixing tool such as can be selected as appropriate). The oscillation plate 22 covers the ultrasonic transducer 21 from the outside and blocks the ultrasonic transducer 21 from the outside (the oscillation plate 22 constitutes a part of the outer surface of the mounting leg portion 20. In addition, the ultrasonic vibrator 21 that is weak against moisture is covered in a liquid-tight manner).

  One end of a first plus side cord 41 is connected to the ultrasonic vibrator 21, and the plus side output terminal of the ultrasonic signal generating means, which will be described later, through the first plus side cord 41. Connected to. Further, one end of a first minus side cord 42 is connected to the oscillation plate 22, and the oscillation plate 22 is connected to a minus side output terminal of an ultrasonic signal generating means described later via the first minus side cord 42. Connected. That is, one surface side of the ultrasonic transducer 21 on the side where the oscillation plate 22 contacts is a negative electrode, the other surface side of the ultrasonic transducer 21 is a positive electrode, and the oscillation plate 22 is the ultrasonic transducer 21. The negative electrode is also used. Note that the minus-side cord 42 may be directly connected to the ultrasonic transducer 21 without using the oscillation plate 22.

  The mounting leg 20 having the ultrasonic transducer 21 and the oscillation plate 22 as described above can be manufactured, for example, as follows. That is, as shown in FIG. 7, the ultrasonic transducer 21 integrated in advance as a set body with respect to the first attachment leg part dividing member 20A before being integrated with the second brush part dividing member 20B. And the oscillation plate 22 are integrated by, for example, adhesion. After that, by integrating the second mounting leg part dividing member 20B with the first brush part dividing member 20A, the ultrasonic vibrator 21 and the oscillation plate 22 as shown in FIGS. The mounting leg 20 in which is incorporated is obtained. The cords 41 and 42 are connected to the ultrasonic transducer 21 and the oscillation plate 22 in advance before assembling the ultrasonic transducer 21 and the oscillation plate 22 to the first mounting leg division member 20A. It is preferable to keep it. In addition, in the state before the mounting leg portion 20 is integrated with the main body portion 10, as shown in FIGS. 9 and 10, the cords 41 and 42 are externally provided from the base end side of the mounting leg portion 20. The extended state is assumed. In addition, the attachment leg portion 20 has a shape in which the tip is opened in a state where the divided members 20A and 20B are joined (or a state immediately after being integrally formed), and the tip opening is separately sealed with silicon or the like. It can also be configured.

  FIG. 12 shows the electrical connection relationship of each component. In FIG. 12, the control board 13 includes functional units 61 to 64 that perform various functions. 61 is a charge control unit, and the charge control unit 61 controls charging from the commercial power source through the charging coil 12 to the rechargeable battery 11 and control of power consumption from the rechargeable battery 11. Reference numeral 62 denotes an ultrasonic oscillator serving as an ultrasonic signal generating means, and a positive output terminal of the ultrasonic oscillator 62 is connected to the ultrasonic transducer 21 and to the proximal electrode 15.

  Reference numeral 64 denotes a main control unit. When the switch 14 is turned on, the main control unit 64 operates the ultrasonic signal generating means 62 to operate the current control board 18 as the ion current control unit, and also the lamp. 16 is turned on. Reference numeral 63 denotes a timer unit. The timer unit 63 counts a predetermined time (for example, 10 minutes) after the switch 14 is turned ON, and when the predetermined time is counted, the main control unit 63 64 stops the operation of the control units 62 and 18 and turns off the lamp 16 (the same applies when the switch 14 is turned off). Of course, the current control board 18 serving as the ion current control unit controls the magnitude of the current flowing from the ultrasonic oscillator 62 to the proximal electrode 15 (the generation of current to obtain the ion action itself is controlled by the ultrasonic oscillator 62. We are using).

  By connecting the first plus side cord 41 and the second plus side cord 45 described above, the plus side output terminal of the ultrasonic oscillator 62 is connected to the ultrasonic transducer 21. Further, by connecting the first minus side cord 42 and the second minus side cord 46 described above, the minus side output terminal of the ultrasonic oscillator 62 is connected to the oscillation plate 22. When a driving current having an ultrasonic frequency from the ultrasonic oscillator 62 is applied to the ultrasonic vibrator 21, the ultrasonic vibrator 21 is ultrasonically vibrated, and this vibration is resonated by the oscillation plate 22.

  A preferred example for coupling the mounting leg 20 including the electrical connection relationship to the main body 10 will be described with reference to FIG. First, the mounting leg portion 20 is prepared by the manufacturing method described above, and the cords 41 and 42 are prepared in a state of extending from the base end portion. Further, the rechargeable battery 11, the charging coil 12, the control board 13, the proximal electrode 15, the motor 17, and the current control board 18 are incorporated into the first main body dividing member 10A in the main body 10, and in this state The cords 45 and 46 are extended from the control board 13 (the ultrasonic oscillator 62 among them).

  After the above preparatory steps, first, as shown in Procedure 1, the cords 41 and 45 are connected and the cords 42 and 46 are connected (the ultrasonic transducer 21 and the oscillation plate 22 with respect to the ultrasonic oscillator 62). Completed electrical connection with). The connection work between the cords can be easily performed using a wide work space having a large opening without being obstructed by the second main body dividing member 10B.

  Next, as shown as procedure 2, the second main body part dividing member 10B is integrated with the first main body part dividing member 10A. Then, as shown as procedure 3, with the base end portion of the mounting leg portion 20 inserted into the distal end portion of the main body portion 10, the mounting leg portion 20 and the main body portion 10 are integrated (for example, bonding with an adhesive, Heat fusion). As a result, a state in which the main body portion 10 and the mounting leg portion 20 shown in FIGS. 1 and 2 are integrated is obtained in a state where the electrical connection relationship shown in FIG. 12 is satisfied. When the base end portion of the mounting leg portion 20 is inserted into the main body portion 10 by a predetermined depth, the mounting leg portion 20 is locked by uneven fitting and further insertion is restricted. The main body 10 and the mounting leg 20 are integrated in a state where the portion 20 is properly positioned at a predetermined insertion depth position with respect to the main body 10. Further, as shown in FIG. 10, the circumferential positioning of the mounting leg 20 with respect to the main body 10 is performed by a tongue-like protrusion 20 c formed at the base end of the mounting leg 20. This is achieved by being inserted into the notch 10a formed in the above. In addition, the attachment of the brush portion 30 to the mounting leg portion 20 is also performed by using the concave / convex fitting so that the brush portion 30 is engaged with the attachment leg portion 20 to a predetermined depth and is locked and positioned. Is done.

  Since the usage method of the ultrasonic ion toothbrush having the above configuration is the same as that described in Patent Document 1, it will be briefly described. First, in use, the brush part 30 prepared for each individual is in a state of being fitted to the mounting leg part 20. Next, the switch 14 is turned on, and the brushing may be performed with the brush hair contacting the teeth and gums in a state where the body portion 10 is gripped so that the finger touches the hand side electrode 15. When brushing teeth, the vibration of the ultrasonic vibrator 21 is resonated by the oscillation plate 22 and effectively transmitted to the brush portion 30 (particularly, the brush-side electrode / vibrator 31 and the brush hair 34). Become. Further, during tooth brushing, current flows between the hand side electrode 15 and the brush side electrode / vibrator 31 via saliva in the oral cavity, so that the ionic bond of plaque is relaxed and decomposed.

  FIG. 13 shows a modification of the ultrasonic transducer 21 and the oscillation plate 22. In this example, the oscillation plate 22 is divided into a first oscillation plate 22A having a smaller area than the ultrasonic transducer 21 and a second oscillation plate 22B having a larger area than the ultrasonic transducer 21. Has been. The three members 21, 22A and 22B are integrated so that the first oscillation plate 22A is sandwiched between the ultrasonic transducer 21 and the second oscillation plate 22B. The minus side cord 42 is directly connected to the ultrasonic transducer 21. In the present embodiment, since the cords 41 and 42 are directly connected to the ultrasonic irradiation device 21, even if the oscillation plate 22 (22 </ b> A) and the ultrasonic transducer 21 are peeled off, the ultrasonic vibration (The minus side cord 42 can be connected to the portion of the ultrasonic transducer 21 that is not covered by the first oscillation plate 22A). The first oscillation plate 22A and the second oscillation plate 22B may be integrally formed (in this case, after connecting the minus side cord 42 to the ultrasonic transducer 21, the oscillation plate 22 (22A and 22B). May be integrated with the ultrasonic vibrator 21.

  Although the embodiment has been described above, the present invention is not limited to the embodiment, and can be appropriately changed within the scope described in the scope of claims. For example, the invention includes the following cases. . The main body portion 10 and the mounting leg portion 20 may be integrally formed. In this case, for example, the main body portion 10 may be divided in the longitudinal direction, and various parts may be incorporated therein. The mounting leg 20 may be integrally formed without being divided in the radial direction. In this case, for example, an opening is formed at the tip of the mounting leg 20 and the opening is passed through the opening in advance. A set body of the ultrasonic transducer 21 and the oscillation plate 22 that are integrated and connected to the cords 41 and 42 may be incorporated. The brush-side electrode / vibration body 31 may be provided at a position different from the attachment position of the brush bristles 34. For example, the brush-side electrode / vibration body 31 may be positioned so as to be exposed on the side surface or the back surface of the head portion 30b. In addition, the position may be set not in the head portion 30b but in the vicinity thereof (however, the portion inserted into the oral cavity).

  The minus side cord 42 may be directly connected to the ultrasonic transducer 21 and may also be directly connected to the oscillation plate 22 (in the case of FIG. 13, it is preferably connected to 22B). The plus side cord may be constituted only by the first cord 41 without being divided in the longitudinal direction between 41 and 45 (the first cord 41 is directly connected to the plus side terminal of the ultrasonic transmitter 62 in the manufacturing process). Connected to). Similarly, the minus side cord may be constituted only by the first cord 42 without being divided in the longitudinal direction of 42 and 46 (the first cord 42 is directly connected to the ultrasonic transmitter 62 in the manufacturing process). Connected to the negative terminal). The control boards 13 and 18 may be configured as a single board, or may be divided into three or more boards as a whole. The current supplied to the proximal electrode 15 may be either direct current or alternating current. Further, the current supplied from the ultrasonic transmitter 62 may be either direct current or alternating current. Of course, the object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.

The side view in the state which shows an example of the toothbrush to which this invention was applied, and attached the brush part to the attachment leg part. The side view which shows the state which removed the brush part from the attachment leg part from the state of FIG. The exploded side surface sectional view of the brush part made into 2 division structure. The figure which shows the example of arrangement | positioning of the brush side electrode and vibration receiving body and the attachment hole of a bristle, seen from the arrow A direction of FIG. The side view which shows the state of the front-end | tip part of an attachment leg part. The figure which looked at the front-end | tip part of the attachment leg part from the oscillation board side. Side surface sectional drawing which shows the detail of the front-end | tip part of an attachment leg part. The expanded side sectional view which shows the arrangement | positioning relationship between an ultrasonic transducer | vibrator, an oscillation board, and a brush side electrode and vibration receiving body in the state which attached the brush part to the attachment leg part. The side surface sectional view which shows the procedure until it unifies and shows the main-body part made into the 2 division structure, and integrates a mounting leg part with respect to a main-body part. The top view which shows the state just before integrating an attachment leg part and a main-body part. The expanded side sectional view which shows the coupling | bond part of a main-body part and a mounting leg part. The circuit diagram which shows typically an electrical connection relationship. The principal part sectional drawing which shows the modification of an ultrasonic transducer | vibrator part.

Explanation of symbols

10: Main body part 10A: First main body part dividing member 10B: Second main body part dividing member 11: Rechargeable battery 13: Control board 17: Motor 18: Current control board (ion current control part)
20: Mounting leg portion 20a: Inner hole 21: Ultrasonic vibrator 22: Oscillating plate 30: Brush portion 31: Brush side electrode / vibrator 41: First plus side cord 42: First minus side cord 45: Second plus Side code 46: Second minus side code 62: Ultrasonic oscillator

Claims (9)

A body part equipped with an ultrasonic signal generating means inside and a hand side electrode exposed to the outside,
A mounting leg that is elongated from the tip of the main body and is equipped with an ultrasonic transducer and a metal oscillation plate in contact with the tip,
A brush part provided with a brush-side electrode and receiving body in a state of being detachably fitted to the outer periphery of the mounting leg part and exposed to the outside,
With
The oscillation plate is exposed to the outside of the mounting leg so as to cover the ultrasonic transducer,
The brush side electrode and vibration receiving body and the oscillation plate are positioned so that they are brought into contact with each other when the brush part is fitted to the mounting leg part,
One side of the ultrasonic transducer that is a contact surface with the oscillation plate is connected to the negative output terminal of the ultrasonic signal generating means,
The other surface side of the ultrasonic transducer and the proximal electrode are connected to a positive output terminal of the ultrasonic signal generating means,
An ultrasonic ion toothbrush characterized by that. In claim 1,
Brush hair is attached to the brush side electrode and vibration receiving body,
In a state where the brush part is attached to the attachment leg part, the brush side electrode and vibration receiving body and the ultrasonic vibrator are set to be in a state of sandwiching the oscillation plate.
An ultrasonic ion toothbrush characterized by that. In claim 1 or claim 2,
The mounting leg portion is configured to have an inner hole communicated with the main body portion,
A plus-side cord and a minus-side cord connecting the ultrasonic signal generating means and the ultrasonic transducer are respectively disposed through the inner holes of the mounting legs.
An ultrasonic ion toothbrush characterized by that. In claim 3,
The mounting leg is formed separately from the main body and integrated with the main body,
Each of the mounting leg portion and the main body portion is configured by joining divided members having a split structure in the radial direction.
An ultrasonic ion toothbrush characterized by that. In any one of Claims 1 thru | or 4,
The brush portion is configured by joining divided members divided into two in the radial direction,
The brush-side electrode and vibration receiving body is provided integrally with one of the two divided members on the side where the brush hair is provided,
An ultrasonic ion toothbrush characterized by that. In any one of Claims 1 thru | or 5,
An ultrasonic ion toothbrush, wherein a current control unit is connected between the proximal electrode and the plus output terminal of the ultrasonic signal generating means. In any one of Claims 1 thru | or 6,
The ultrasonic ion toothbrush characterized in that the ultrasonic transducer is connected to the negative output terminal of the ultrasonic signal generating means via the oscillation plate. A method of manufacturing the ultrasonic ion toothbrush according to claim 1,
The ultrasonic transducer and the oscillation plate with respect to the first mounting leg part split member for forming the mounting leg part formed separately from the main body part and split in the radial direction into two parts And a first step of obtaining a state in which a plus side cord and a minus side cord are connected to the ultrasonic transducer,
After the first step, a second mounting leg split member for constituting the mounting leg is joined to the first mounting leg split member, and the cords are respectively connected from the base end to the outside. A second stroke constituting the mounting leg in an exposed state;
The ultrasonic signal generating means is incorporated into the first main body part dividing member for constituting the main body part divided in the radial direction, and the positive output terminal of the ultrasonic signal generating means is connected to the positive output terminal. A third step of connecting the plus side cord and obtaining a state in which the minus side cord is connected to the minus side output terminal of the ultrasonic signal generating means;
After the third step, a fourth step of joining a second main body part dividing member for constituting the main body part to the first main body part dividing member;
After the fourth step, a fifth step of joining the mounting leg portion to the main body portion;
The manufacturing method of the ultrasonic ion toothbrush characterized by having provided. In claim 8,
In the main body portion, a rechargeable battery and a motor for giving a pseudo vibration for making the human body sense are incorporated,
In the third step, the rechargeable battery and the motor are incorporated into the first main body part dividing member.
The manufacturing method of the ultrasonic ion toothbrush characterized by the above-mentioned.

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