WO1992010113A1

WO1992010113A1 - Tooth brush

Info

Publication number: WO1992010113A1
Application number: PCT/JP1990/001598
Authority: WO
Inventors: Kensuke Isshiki; Shuji Yatago
Original assignee: Kabushiki Kaisha Newvice
Priority date: 1990-12-07
Filing date: 1990-12-07
Publication date: 1992-06-25

Abstract

A tooth brush to the head (2) of which is fitted two kinds of substances (5, 6) which are comparatively much different from each other in electric potential, such as gold and aluminum, in such a manner that these substances are electrically connected to each other at least at parts thereof, in which bristles (3) are implanted into the brush head through at least one of these substances. A large quantity of water and/or dentifrice present in the mouth when the brush is used acts as electrolyte to form a cell system together with electrodes of said two kinds of substances. The system generates a large quantity of ions at each electrode with the movement of electric energy. Owing to bristles (3) passing through at least one of the electrodes, the ions reach tips of the bristles (3) containing water and being electrically conductive and flows through teeth and gums touching the tips of the brush, so that tartar is decomposed or gums are activated by ion exchange.

Description

TECHNICAL FIELD The present invention relates to a toothbrush, and more specifically, to a toothbrush which generates an ion. BACKGROUND ART Conventionally, various ion generating toothbrushes have been proposed, and those using a dry cell or a photoelectric element as an ion generating source are commercially available.

However, batteries that use dry cells may leak electrolytes or significantly reduce battery performance if it takes a long time from manufacture to sale, and batteries that use photoelectric elements may be relatively dark. In this case, there is no sufficient amount of energy, and the expected effect cannot be expected.

In order to improve the above-mentioned defects, two types of substances with different ionization tendencies are attached to the head of the toothbrush in an exposed state, as shown in Japanese Utility Model Application Laid-Open No. 64-193327. Is provided. This is because when using a toothbrush, the above two substances can remove water in the oral cavity from the electrolyte. It forms a battery system and generates ions. However, in the toothbrush described in the embodiment of the above-mentioned publication, the above-mentioned two kinds of substances are wound on the side of the head of the toothbrush in the form of a wire or a narrow width. A large amount of ions are generated near the installed head, but there was a problem that the ions were not conducted well at the tip of the brush bristles that directly contact the teeth or gingiva.o

Also, in order to attach the above two substances to the head of the toothbrush in good shape and prevent them from catching on the teeth during use, make these substances flush with the surface of the resin of the head. It is necessary to bury it. For this purpose, it is necessary to insert-mold these substances in a mold when molding the main part of the toothbrush, and there has been a problem that the molding cost is high. DISCLOSURE OF THE INVENTION DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object the purpose of making an ion-produced tooth easily transferred to a brush surface without requiring a special molding die. To provide a brush. In order to achieve the above g, in the toothbrush of the present invention, two kinds of substances having a relatively large potential difference are attached to the head of the toothbrush body in a state where at least a part thereof is electrically connected, The brush bristles are planted through at least one of the substances. Also, preferably, the two kinds of substances are overlapped and connected, and the brush hair is implanted through the two kinds of substances. One is formed by a gold plating layer, and the other is formed by a film or sheet having a large potential difference with respect to gold, such as aluminum.When using a toothbrush, a large amount of Because of the presence of moisture and / or dentifrice, these are used as electrolytes, and a battery system is formed using two metals having relatively large electric potentials as electrodes. Generates a large amount of ions. Since the brush hair penetrates through at least one of the electrodes, the ions reach the tip of the brush hair that is electrically conductive with moisture, and the ions flow to the teeth and gingiva where the brush hair tip contacts. This causes the calculus to break down or the gingiva to be activated by a known ionic effect.

The above and other objects, configurations and advantages of the present invention will become apparent from the following description of embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a brush of a toothbrush according to a first embodiment of the present invention with a part omitted, and FIGS. 2 and 3 are second and third views of the present invention, respectively. FIG. 4 is a plan view showing the embodiment, in which the brush hair is omitted from the head of the toothbrush body on the side where the brush hair is implanted. BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a first embodiment of the present invention, in which 1 shows a toothbrush body made of a synthetic resin, preferably ABS resin, and 2 shows a head inserted into an oral cavity at the time of use. , 3 indicates brush bristles. In forming the tooth brush body 1 by injection molding of synthetic resin, first, gold entire head 2 in _c this embodiment the head 2 formed simultaneously flocking holes 4 for flocking the brush hairs 3 main Tsu key layer 5 is formed by being _c the gold main Tsu key layer 5 known chemical-electroplated luck or vacuum main Tsu key (vacuum deposition method, a sputtering-ring method, Ionme luck method) are formed by However, from the viewpoint of cost, the chemical and electric plating method is preferred. When forming the gold plating layer 5, it is preferable that the flocking holes 4 are not closed by the gold plating layer 5. In addition, when the flocking hole 4 is closed by the gold plating layer, the flocking hole 4 needs to be opened before the brush hair 3 is transplanted. Next, an aluminum foil 6 having a relatively large potential difference with respect to gold is adhered on the gold mech layer 5 on the surface of the head 2 where the brush bristles 3 are implanted. At this time, the aluminum foil 6 is electrically connected to the gold plating layer 5. A through hole is formed in the aluminum film 6 at a position corresponding to the flocked hole 4, and the brush bristles 3 are transplanted by a known method to complete the toothbrush of the present invention. When the gold plating layer and the aluminum foil are immersed in water and the potential difference is measured, the voltage difference is about 1.1 volts. When both are electrically connected, a minute current flows and ions are generated. In the above embodiment of the present invention, the brush bristles 3 are in direct contact with or in close proximity to the gold plating layer 5 and the aluminum foil 6, so that during use, ions generated between the brush bristles 3 contain water. A large amount flows from the tip to the teeth and gingiva where the brush bristles 3 are in contact, and can dissolve calculus and improve gingival blood circulation and strengthen it.

The reason why gold and aluminum were selected as the metals having a relatively large potential difference in the above embodiment is that gold does not corrode and that the standard monopolar potential is extremely large at +1.50 V with respect to the standard hydrogen electrode. , Because it has a very good aesthetic. On the other hand, as the other electrode, zinc, copper, iron, and the like can be considered as having a large potential difference from gold, but aluminum is preferred because of poor corrosion resistance. In addition, the gold was formed by the plating layer because the non-conductive film of the normal gold transfer film is coated as a protective layer on the surface, so ions are generated even in contact with water. Those that do not have this protective layer, on the other hand, can be peeled off by gentle friction, and gold plates are expensive and impractical. In addition, it is also possible to attach aluminum to the head 2 by vacuum evaporation instead of aluminum foil.

However, the present invention is not limited to the combination of gold and aluminum, and it goes without saying that other combinations of metals may be used. The present invention is not limited to the above embodiment, and various modifications are possible. For example, as shown in FIG. A metal layer 5a is formed, and for example, an aluminum foil 6a is adhered to a portion where the synthetic resin is exposed at a central portion thereof by a hot-sump or the like, and an outer periphery of the aluminum foil 6a is formed. It may be brought into contact with the gold plating layer 5a. 0

Alternatively, as shown in FIG. 3, for example, a gold plating layer or a gold plate 5b and an aluminum foil 6b are hot-stamped in parallel to the surface of the head on the side where the brush bristles 3 are to be planted. It may be adhered.

In the case of the embodiment shown in FIGS. 2 and 3, the outer peripheral surface of the head 2 and the outer surface on the side opposite to the surface on which the brush bristles 3 are implanted may or may not be provided with a paint layer. good.

In the embodiment shown in FIG. 1, the aluminum foil 6 was superimposed on and bonded to the gold plating layer 5, but separately from this, the gold plating layer was extended to the outer periphery of the aluminum plating 6. The aluminum foil is glued to the inside of the head 2 surrounded by the gold metal layer with a hot stamp etc., and the gold metal layer and the aluminum foil are connected to each other only at the periphery. The brush bristles may be implanted only through the aluminum foil. Furthermore, the gold-mesh layer 5 can be formed not only on the head 2 but also on the entire handle, so that an expensive image can be obtained to enhance the commercial value. As described above, in the toothbrush of the present invention, two kinds of substances having a relatively large potential difference are attached to the head of the toothbrush body in a state where at least a part of them is electrically connected, and at least the one kind is attached. The brush bristles are implanted by penetrating the above-mentioned substance.When the head is put into the oral cavity at the time of use, moisture and dentifrice in the oral cavity are used as an electrolyte, and the above-mentioned two substances are used as an electrode. As a result, a battery system is formed, and the generated ions reach the tip of the brush bristles via the moisture of the brush bristles and flow to the teeth and gingiva where the brush bristles are in contact. It becomes possible.

In addition, when the two kinds of substances are overlapped and connected, and the brush hair is implanted through the two kinds of substances, the substance in this part comes into contact with teeth and peels off during use. There is no risk of dropping or falling off, so the effect is not reduced during long-term use. In addition, the above two substances are attached to the surface on which brush bristles are to be planted by plating, bonding, hot stamping, etc., so that no special mold is required, making it extremely simple and low cost. Thus, the toothbrush of the present invention can be manufactured, and a disposable toothbrush can be obtained.

Also, when one of the two substances is formed of a gold plating layer, gold has a very large standard monopolar potential, so that not only can a large potential difference be obtained in combination with other metals, Gold is beautiful without being corroded, and has an excellent effect that it can be extremely large and enhance its commercial value by being formed in a very thin form, which keeps costs down.

Claims

• The scope of the claims

1. At least two substances having a relatively large potential difference are attached to the head of the toothbrush body in a state where at least a part of them is electrically connected, and the brush hair penetrates at least the one substance. A toothbrush characterized by being planted with a toothbrush.

2. The toothbrush according to claim 1, wherein said two kinds of substances are overlapped and connected to each other, and said brush hair is implanted through said two kinds of substances.

3. The toothbrush according to claim 1, wherein one of the two kinds of substances is formed by a gold plating layer.

4. The toothbrush according to claim 3, wherein the other of the two substances is formed from a film or sheet having a large potential difference with respect to gold, such as aluminum.