JP3844261B2 - Interdental brush - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an interdental brush that cleans a gap between teeth, and provides a configuration in which a handle is filled with a liquid toothpaste.
[0002]
[Prior art]
Generally, when interdental cleaning is performed with an interdental brush, a dentifrice is not used, and brushing is simply performed by simply inserting a brush between the teeth and moving back and forth.
[0003]
[Problems to be solved by the invention]
However, when brushing without using a dentifrice, rough cleaning can be done, but it cannot remove plaque and even fine dirt. Therefore, it goes without saying that it is preferable to always use a dentifrice even when using an interdental brush from the viewpoint of preventing dental diseases such as alveolar pus leakage. However, the brush in this interdental brush has a conical shape with no flat surface and is shaped to be thin enough to be inserted between the teeth, so that a toothpaste is attached to the surface unlike a normal toothbrush. It is difficult to make it. Moreover, even if it once adheres, it can be easily removed before moving to brushing.
[0004]
On the other hand, from the above viewpoint, the present inventor has previously applied for a technique in which a sponge or the like is loaded into a cap for protecting a brush and water sponge or the like is soaked into the sponge or the like (Japanese Patent Application No. 7- 219838), the invention according to the application in which the cap and the interdental brush are configured separately and the present invention are fundamentally different in means for solving the problem.
[0005]
The present invention has been made in view of the above, and provides a new interdental brush that can reliably and easily attach a dentifrice to a brush and can always be cleaned with a dentifrice without preparing a separate member. It is for the purpose.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, in an interdental brush comprising a brush formed by twisting a wire after a filament is sandwiched between wires and a handle made of a synthetic resin in which an insertion hole for burying the wire is formed, A chamber communicating with the insertion hole is formed in the handle, a capillary tube reaching the chamber is inserted into the insertion hole, a brush wire is embedded in the capillary tube, and the handle is fixed to the handle. Use a means of filling with toothpaste.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a sectional view showing an internal structure of an interdental brush according to the present invention. An interdental brush 1 is roughly composed of a brush 2 and a synthetic resin handle 3 and two members. While the filament 2b is sandwiched between the wires 2a bent in half and twisted, the handle 3 is formed with an insertion hole 3a for burying and fixing the wire 2a, and a chamber 3b communicating with the insertion hole 3a. Further, the chamber 3b is filled with liquid toothpaste. For example, a filling hole (not shown) is provided at the rear end of the handle, and after filling with the liquid toothing, a plug (not shown) is inserted into the filling hole and sealed. Moreover, each user can appropriately fill the handle with a liquid toothpaste by providing a knob on the stopper so that it can be inserted and removed.
[0008]
With the above configuration, the chamber 3b is pressured by picking with a finger to the extent that the middle part of the handle 3 is lightly recessed, and the liquid toothpaste moves in the direction of the tip of the handle 3 using the insertion hole 3a as a passage, and further the gap of the wire 2a And ooze out into the filament 2b. In this way, by gently picking the handle 3, it is possible to always clean the teeth with a liquid toothpaste. Here, the handle 3 is made of synthetic resin, and the outer peripheral wall of the chamber 3b is thin, so that pressing with a finger is easy. Moreover, since the diameter of the insertion hole 3a is small, even if the interdental brush is inverted, the liquid toothpaste does not leak inadvertently.
[0009]
FIG. 2 shows another embodiment, in which the liquid toothpaste passage 4 is formed to open near the tip of the handle 3 while communicating with the chamber 3b. In this configuration, a liquid toothpaste can be extracted from the passage 4 to the outside of the chamber 3b by lightly picking the middle part of the handle 3 with a finger as in the above embodiment. And further adheres to the filament 2b through the wire 2a.
[0010]
FIG. 3 shows still another embodiment, in which a capillary 5 having a length reaching the chamber 3b is inserted into the insertion hole 3a, and the wire 2a is buried in the capillary 5. As shown in FIG. In this embodiment, the liquid level in the capillary 5 rises by capillary action when the interdental brush 1 is raised without applying pressure to the middle part of the handle 3 with a finger as in the two embodiments described above. By utilizing this phenomenon, the liquid toothpaste in the chamber 3b is attached to the filament 2b. Capillary phenomenon occurs under atmospheric pressure. Therefore, in the present embodiment, the handle 3 is provided with a constant pressure hole 6 communicating with the chamber 3b in order to avoid the chamber 3b from having a negative pressure by the amount of the liquid tooth. Therefore, since the inside of the chamber 3b is always kept at the atmospheric pressure regardless of the decrease in the liquid toothpaste, the liquid toothpaste can be attached to the filament 2b by capillary action as described above. However, since the isobaric hole 6 is formed to have a very small diameter, the liquid toothpaste does not leak out inadvertently.
[0011]
【The invention's effect】
As described above, in the present invention, the liquid toothpaste chamber provided inside the handle is in communication with the insertion hole of the wire, so by pressing the handle, the liquid toothpaste is transmitted through the wire to the filament. Can be attached. Thus, the adhesion of the dentifrice to the brush could be made simple and reliable. Moreover, it is not necessary to prepare a separate body such as a container containing a dentifrice, which is convenient. Furthermore, since a capillary was inserted into the insertion hole of the wire and the wire was buried in this, not only when the handle was pressed, the liquid toothpaste in the chamber caused the capillary phenomenon without applying such force. And can be attached to the filament.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an internal structure of an interdental brush. FIG. 2 is a longitudinal sectional view of an interdental brush showing another embodiment. FIG. 3 is a sectional view of an interdental brush showing another embodiment. Vertical section [Explanation of symbols]
1 Interdental brush 2 Brush 2a Wire 2b Filament 3 Handle 3a Insertion hole 3b Chamber 4 Passage 5 Capillary 6 Isobaric hole

Claims (1)

An interdental brush composed of a brush made by twisting a wire after the filament is sandwiched between the wire and a synthetic resin handle formed with an insertion hole for burying the wire, and communicates with the insertion hole inside the handle. A chamber is formed, a capillary that reaches the chamber is fitted into the insertion hole, a brush wire is buried in the capillary and fixed to the handle, and the chamber is filled with liquid toothpaste. Interdental brush.

Images