JPH0633520U - toothbrush - Google Patents

Abstract

(57) [Summary] [Construction] In a toothbrush having a total length L ₁ of 100 to 180 mm, the length L 2 of the flocked portion ₂ is in the range of 7 to 15 mm, and the length of the neck 3 and the length of the flocking table are A toothbrush whose sum of sashimi is 60 mm or more. [Effect] It is easy to put a toothbrush into a small mouth such as a child's mouth, and it is easy to brush while watching small teeth. Therefore, the mother or the like can easily re-polish the back teeth such as the deciduous molars and 6-year-old molars, which cannot be easily brushed by the child.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toothbrush that is easy to re-polish in the mouth of a child who is undeveloped in brushing technology and tends to be left unpolished. More specifically, the present invention relates to a toothbrush such as a deciduous molar or a 6-year-old molar that a mother or the like can easily refurbish the back teeth that cannot be easily cleaned by the child.

[0002]

[Problems to be solved by conventional techniques and devices]

 The first molars that emanate at the age of about 6 years have a lower occlusal surface for several months during the ejaculation process than other teeth, so plaque is likely to accumulate and caries easily. In addition, because the brushing technique is not matured at this time, one child cannot remove plaque sufficiently. Therefore, mothers and the like rehearse after their children have brushed.

However, since the toothbrushes for children up to now have a large bristle implant and a short neck, it is difficult to put the toothbrush in the child's mouth when re-shaping the back teeth of the child with a small mouth. Since it is small, it is difficult to see the teeth in the large flocked part, it is difficult to brush while looking at each one, it is difficult to reach the back because the neck is short, and there are problems that the child dislikes it when trying to put it in the back.

[0004]

[Means for Solving the Problems]

 The present inventor has completed the present invention as a result of intensive research to solve the above problems. That is, the present invention is a toothbrush having a total length of 100 to 180 mm, in which the length of the flocked portion is in the range of 7 to 15 mm, and the sum of the length of the neck and the length of the flocked table is 60 mm or more. The present invention provides a toothbrush characterized by the above.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a front view showing an embodiment of the toothbrush of the present invention, FIG. 2 is a front view showing another embodiment of the toothbrush of the present invention, and FIG. 3 is a front view showing another embodiment of the toothbrush of the present invention. Is. As shown in FIG. 1, the toothbrush 1 of the present invention has a total length L ₁ of 100 to 180 mm, preferably 130 to 180 mm, and a bristle portion 2 has a length L _{2 of 7} to 15 mm, and , neck 3 of a length L ₃ and the sum of the bristle base length L ₄ is 60mm or more, preferably 60 to 80 mm.

With such a configuration, it is easy to put the toothbrush in the small mouth, and it is easy to see each small tooth. Also, because the flocked part is small, it is easy to brush while seeing small teeth. Also, by setting the sum of the length of the neck part and the length of the flocking table to be 60 mm or more, that is, the length reaching the back teeth, when looking at the mouth from the eye position of the person who re-polishs There is no obstruction of sight.

[0007] the neck of the present invention toothbrushes thin longer is, intercepting the field of view is small, particularly preferably has the cross-sectional area of the neck portion 3 is 12mm ² ~50mm ^2, also the in the range of 15 to 30 mm ² More preferable. Further, as shown in FIG. 2, a toothbrush having a ratio of major axis / minor axis r ₁ / r ₁ ′ = 3/2 to 1/1 in the cross section of the neck portion is preferable. Furthermore, it is preferable that the bristle portion 2 is inclined with respect to the neck portion 3 in the direction of the bristles 5 at an angle of 5 ° to 15 °. By inclining in this way, it becomes easier to re-polish the occlusal surface and the like of the first molar that is one step lower.

It is preferable that the handle grip portion 4 of the toothbrush of the present invention has a relatively large thickness when it is re-polished. Although it may be a flat shape like a general toothbrush, it is preferable that the ratio of the major axis to the minor axis of the cross section of the grip portion is r ₂ / r ₂ ′ = 3/2 to 1/1. Furthermore, the hexagonal, octagonal, and circular grips are easier to grip and control force. Further, as shown in FIG. 3, it is preferable that the grip 4 has a recess 6 in terms of use. That is, when a toothbrush having such a shape is used by holding it like a pencil, the concave portion 6 corresponds to the abdominal side of the index finger, so that the toothbrush can be easily moved in small steps and the toothbrush can be easily rotated, so that the back teeth are not contaminated. Easy to drop.

The bristles used in the toothbrush of the present invention may be those normally used, but those having a thickness of 6/1000 inch to 8/1000 inch and a length of 7 mm to 10 mm are particularly preferable. Also, since the gums of children are vulnerable to damage, it is preferable that the bristles have a spherical object at the tip.

[0010]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

[0011] Example 1 the total length L ₁ is 160 mm, the length L ₂ is flocked portion 2 8 mm, the length L ₃ is 60mm in neck 3, the neck 3 having a diameter of 5 mm.phi, FIG diameter of 12mmφ the gripper A tooth brush as shown in No. 1 was obtained.

[0012] Example 2 overall length L ₁ is 140 mm, the length L ₂ is 12mm flocked portion 2, a neck 3 of the length L ₃ is 55 mm, major axis r ₁ of the neck portion 3 of the cross-section 5.5 mm, short diameter r ₁ 'is 4.5 mm, length diameter r ₂ is 18mm cross-section of the grip portion 4, minor r _2' in the 15 mm, flocked portion 2 is 12 ° inclined in the direction of the bristles 5 with respect to the neck 3 (i.e. θ = 12 °), and a toothbrush as shown in FIG. 2 was obtained.

[0013] Example 3 total length L ₁ is 160 mm, the length L ₂ is flocked portion 2 10 mm, neck 3 of length L ₃ is 54 mm, flocked portion 2 in the direction of the bristles 5 with respect to the neck 3 9 A toothbrush as shown in FIG. 3 which is inclined (that is, θ = 9 °) and has the concave portion 6 in the grip portion 4 is obtained.

[0014]

EFFECTS OF THE INVENTION The toothbrush of the present invention having the above-described structure makes it easy to put the toothbrush into a small mouth such as a child's mouth, and it is easy to brush while watching small teeth. Therefore, the mother or the like can easily re-polish the back teeth, such as deciduous molars and 6-year-old molars, which cannot be easily cleaned by children themselves.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the toothbrush of the present invention.

FIG. 2 is a front view showing another embodiment of the toothbrush of the present invention.

FIG. 3 is a front view showing another embodiment of the toothbrush of the present invention.

[Explanation of symbols]

 1: Toothbrush 2: Flocked part 3: Neck part 4: Grip part 5: Bristle 6: Recessed part

Claims (4)

[Scope of utility model registration request] 1. A toothbrush having a total length of 100 to 180 mm, in which the length of the flocked portion is in the range of 7 to 15 mm, and the sum of the length of the neck and the length of the flocking table is 60 mm or more. Characterized toothbrush. Wherein in the range cross-sectional area of the neck is 12mm ² ~50mm ^2, claim 1 ratio of long diameter / short diameter of 3 / 2-1 / 1
The listed toothbrush. 3. The toothbrush according to claim 1, wherein the bristle portion is inclined at an angle of 5 ° to 15 ° in the bristle direction with respect to the neck portion. 4. The toothbrush according to claim 1, wherein the grip has a recess.