JP4851614B1 - toothbrush - Google Patents

Abstract

【Task】
Reduce the number of wrist movements and toothbrushes that are frequently performed when brushing teeth. When picked with a finger, it is held lightly, encourages light brushing, and reduces damage to teeth and gums. The toothbrush is an eco-friendly toothbrush that is also friendly to the environment and can be used to learn lightly. While toothbrushes with various designs are on the market, we will provide toothbrushes that will make you feel a new generation and a new sense.
[Solution]
According to the location to be polished, the toothbrush 10 is rotated by operating the rotary handle 15 around the holding portion 3. The toothbrush holding part 3 is wide and thin, and it is encouraged to hold the toothbrush with a finger instead of grasping it, and the toothbrush 10 as a whole moves with the holding part 3 as a fulcrum to reduce damage to teeth and gums. Invented a toothbrush. In addition, by reducing the amount of materials used, it becomes an environmentally friendly toothbrush, and its appearance is full of new generations and new sensations.
[Selection] Figure 1

Description

The present invention relates to a toothbrush, and more particularly to a toothbrush that has excellent operability and can reduce damage to teeth and gums.

Conventionally, the purpose of brushing teeth with a toothbrush is to remove plaque and massage effect to promote blood circulation of the gums. There are palm grip and pen grip in the way of holding the toothbrush, the pen grip is not too powerful, It is said that it is easy to control fine movements. At present, commercially available toothbrushes have a long and strong grip, can be held stably, and have a gripping portion shape that makes it easy to brush their teeth. Most of the toothbrushes are made mainly of plastic resin and are easy to mass-produce and inexpensive. For effective toothbrushing, it is necessary to have individual consciousness and effort, such as brushing method and time, rather than selecting a toothbrush.

The purpose of this toothbrush is to make it easy to polish areas that are difficult to polish by adding a method of supporting with a fingertip. (For example, Patent Document 1)

This toothbrush is provided with an elastic material of a stainless steel sheet that can be reversed so that the head is warped when a predetermined pressure is applied between the head and the grip for the purpose of providing appropriate pressure. (For example, Patent Document 2)

Real Kaihei 7-23434 JP 2003-265233 A

However, the conventional technique has the following problems. In other words, when brushing teeth, when changing the direction of the toothbrush according to the location to be brushed, it is often necessary to move the wrist or change the toothbrush. Too much brushing with a toothbrush and damaging teeth and gums. Causes of excessive brushing of teeth and gums (1) Psychological problem that it seems that the stains are likely to be removed quickly when brushed strongly, or there is no satisfaction of polishing unless brushed strongly. (2) The thickness and shape of the grasping portion of the toothbrush are easy to grasp. (3) The gripping part of the toothbrush is hard.

The present invention is intended to solve the above-mentioned problems, and a new holding part structure, holding method, and operating method of a toothbrush have been devised, and the movement of the wrist that the toothbrush direction can be operated with a fingertip has been frequently performed. And reduce the number of changeovers. Another object of the present invention is to provide a toothbrush that encourages light brushing of teeth and gums.

In order to achieve the above object, the toothbrush according to claim 1 is a toothbrush including a brush portion, a shaft portion, a holding portion, and a rotating handle, and is arranged in the order of the brush portion, the shaft portion, the holding portion, and the rotating handle. The toothbrush can be rotated around the holding part by picking the holding part with two fingers and operating the rotary handle with the other fingers.

The second problem-solving means is provided with a concave portion in which a finger fits in the center of the holding portion, or a concave portion having a convex portion in the center, or a convex portion .

The third problem solving means is provided with one or a plurality of holes in the shaft portion.

The operation of the first problem solving means is as follows. By picking the holding part and operating the rotary handle, the toothbrush can be rotated freely according to the place to be polished around the holding part. When the toothbrush is pressed strongly, the toothbrush rotates with the holding part as a fulcrum and the brush part escapes, reducing damage to the teeth and gums.

The operation of the second problem solving means is as follows. The position of the finger gripping the holding portion, which is the center of rotation of the toothbrush, is stabilized. The presence of the convex portion reduces the resistance between the holding portion and the picked finger.

The operation of the third problem solving means is as follows. It is weight reduction by reducing the plastic material used for molding and adjusting the deflection of the shaft.

When the present invention is used, the holding method of picking with two fingers makes it easy to move the entire toothbrush with the holding portion as a fulcrum, thereby suppressing strong brushing and reducing damage to teeth and gums. Since the toothbrush can be freely rotated in accordance with the place to be polished around the holding part, the wrist is moved or the frequency of changing is reduced. The presence of the concave portion or the convex portion to the holding portion, the center of rotation is stabilized, rotating operation of a small force by the presence of convex portion becomes possible. Even those who are brushed too hard can expect learning effects to get used to light brushing by using this toothbrush.

The perspective view explaining the state hold | maintained with the finger | toe of this invention Same perspective view Plan view Cross section ab Perspective view having one hole in the coaxial part Perspective view having a plurality of holes in the coaxial part A plan view and a sectional view for explaining the convexity of the holding part in the concave part The perspective view explaining the holding | maintenance part convex a

FIG. 1 is a perspective view illustrating a state of being held by two fingers according to the present invention. The toothbrush 10 is operated by rotating the rotation handle 15 with the middle finger 16 with the holding part 3 picked by the thumb and forefinger as the center of rotation according to the place to be polished, and rotating in the arbitrary direction (rotation direction 13). Change direction. The rotary handle 15 is also considered to supplement the stability by applying an auxiliary finger to this part when it is difficult to hold the toothbrush depending on the person using it by holding the holding part 3 with only two fingers. ing. Basically, the holding part 3 is picked and held only by the thumb and forefinger, so the toothbrush 10 is easy to move with the holding part 3 as a fulcrum, and when the brush part 4 is strongly pressed against the teeth, the brush part 4 escapes to the outside ( Since the escape movement 12), damage to the teeth and gums can be reduced. The material of the rotary handle 15 is considered to be appropriate when it is operated with a finger, such as a material having elasticity such as rubber, silicon, etc. and having a non-slip surface.

FIG. 2 is a perspective view of the present invention. The holding part 3 of the present invention, which is a grasping part of a conventional toothbrush, is based on picking and holding, and has a length, thickness, and shape that are difficult to grasp. The total length 5 of the toothbrush is about 13.5 cm, which is about 2/3 of the conventional product. The rotation handle 15 is operated with the middle finger with the holding portion 3 as the center of rotation in accordance with the location to be polished, and the toothbrush 10 is rotated to change the direction of the brush portion 4. The shaft portion thickness 6 is about 2 mm, and it is possible to significantly reduce the material used as compared with the conventional toothbrush. Although the width of the portion where the holding portion 3 and the rotary handle 15 are located is wider than that of the shaft portion 2, the rotation operation is possible even if the width of the holding portion 3 and the rotary handle 15 is the same as the width of the shaft portion 7. However, with the same width, it is difficult to distinguish the holding part 3 and the rotary handle 15 from the shaft part 2 and there is a possibility that the holding part 3 and the rotary handle 15 will be held in the wrong direction. Differentiating between the width 7 and the width is effective in a sense after the user visually understands the holding method and the operating method of the present invention. Further, the area of the holding portion recess 9 can be widened. Since the shaft portion 2 is thin, it is possible to adjust the bending of the shaft portion 2 by changing the material to be used, and to give elasticity to the teeth and gums, and because it is lightweight, it is hard to get tired.

Compared with the conventional toothbrush, the total length of the toothbrush 10 is about 2/3, the shaft part 2, the holding part 3 and the rotating handle part are about 1/3 of the thickness, and the entire toothbrush is made of 1 material. / 2 to 1/3. Although the effect is limited because the toothbrush itself is small and uses few materials, it is thought that the toothbrush of the present invention can contribute to a low-carbon society to a small extent by widespread use.

FIG. 3 is a plan view of the present invention. Shorter than conventional toothbrushes.

4 is a cross-sectional view taken along line ab shown in FIG. The holding portion 3 has a spherical holding portion recess 9 that visually conveys to the user that the holding portion 3 is not gripped but is held by a finger. In addition, the finger holding the holding part is not easily displaced from the holding part 3 and is easy to hold, and the center of rotation is clarified.

FIG.5 and FIG.6 is explanatory drawing which has a hole in the axial part 2 of this invention. One of the purposes of drilling holes is to contribute to a low-carbon society by reducing resin materials. The other is to adjust the size of the hole and the thickness around the hole and change the rib strength on both sides of the hole to adopt a structure that deforms the periphery of the hole when a strong and strong force is applied to the shaft. It is done. And it is lightweight. As a disadvantage,
There is a concern that dirt tends to accumulate in the hole, but it seems that one large hole is easier to remove dirt than making a plurality of small holes. This hole can also be used as a hole for storing on a hook when not in use.

FIG. 7 is an explanatory view of a shape in which the holding portion protrusion 11 is provided in the spherical holding portion recess 9 in the holding portion 3 of the present invention. The center of rotation of the toothbrush 10 becomes clearer due to the holding portion protrusion 11. In addition, the thighs of the two fingers picked easily float from the holding portion recess 9, the resistance between the holding portion recess 9 and the two fingers picked is reduced, and the rotary handle 15 can be operated with a light force. Become. The holding part recess 9 has a meaning of making it easy to visually understand the position of the holding part 3 to be picked by a finger.

FIG. 8 is a diagram for explaining that the holding portion protrusion a11a is at the center of the holding portion 3 of the present invention. The holding part convex a11a at the center of the holding part 3 makes it easier for the gripped two fingers to float from the holding part 3, reducing the resistance between the holding part 3 and the picked finger, and rotating with a light force. The handle 15 can be operated. Moreover, the center of rotation of the toothbrush 10 becomes clearer due to the holding portion protrusion a11a. The holding portion projections a <b> 11 a are provided on both the front and back surfaces of the holding portion 3 as in the cross-sectional view of FIG. 7.

1 head part 2 shaft part 3 holding part 4 brush part 5 full length 6 shaft part thickness 7 shaft part width 8 holding part width 9 holding part concave 10 toothbrush 11 holding part convex 11a holding part convex a
12 Escape movement 13 Rotation direction 15 Rotation handle 16 Middle finger

Claims (3)

In a toothbrush equipped with a brush part, a shaft part, a holding part, and a rotating handle, the brush part, the shaft part, the holding part, and the rotating handle are arranged in this order, picking the holding part with two fingers, and holding the rotating handle with the other fingers A toothbrush that can be rotated around the holding part by operation. The toothbrush according to claim 1, wherein there is a concave portion in which a finger fits in the center of the holding portion, or a concave portion having a convex portion in the center, or a convex portion . The toothbrush according to claim 1 , wherein the shaft portion has a hole.