JP2008188402A - Overall periodontal toothbrush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent easy detachment of a toothbrush for brushing both sides of a tooth row even if the tooth row has a single or two missing teeth continuously in the overall periodontal toothbrush capable of simultaneously brushing the outer (the lip) side, the inner side (the tongue) side and the occlusion face of the tooth row of a person. <P>SOLUTION: Two-face tool-and-bristle bases 1' are positioned on the same plane and disposed horizontally at several mm apart from each other with a link band 4, a grip part 5 is connected to the link band via a neck part 6 at the tip with a grip link body with keeping a space for a grip neck part clearance part 8, and is integrally primarily molded with the bristle bases 1' by injection molding method of thermoplastic resin, the bristles are filled and cut so that a space formed by the tips of the bristles is formed into a required shape after the completion, and both bristle bases 1' retains 25° relative to the horizon respectively. A clearance formed by the link band 4 and the grip part 5 and the clearances formed by the grip neck part clearance part 8 are mounted on a die capable of filling them by molding, and are filled with low-molecular rubber resin same base material with that of the primary molding. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a toothbrush capable of simultaneously brushing three sides of a human dentition, the outer (lip) side, the inner (tongue) side, and the mating surface.

  Conventionally, many proposals have been made on so-called full periodontal toothbrushes that can simultaneously brush the three surfaces of a tooth so as to straddle the dentition.

  However, many proponents do not know the performance of the currently widely used automatic flocking machine, and propose that flocking is possible on the inside of a curved surface or a folded surface. In an automatic hair transplanting machine, hair can be planted only on one plane, and in order to implement the proposal, there is no method other than manually planting hair, and even if implemented, it cannot withstand commercialization. The present inventor has already overcome this difficulty by performing injection molding in two steps in a manufacturing method of a toothbrush having two brushed surfaces of Japanese Patent Application No. 2006-308421.

  The problem to be solved by the present invention is that if there is something missing in the dentition in early childhood or old age, the entire periodontal toothbrush is easily detached from the dentition, and even if it does not detach, the toothbrush When entering a healthy tooth from a missing part, it may be uncomfortable or painful.

  In order to solve the above-mentioned problem, the length of the flocked portion may be increased, but a flocked row having a length of 25 mm or more will not be accepted in the current toothbrush market.

  In the present invention, the length of the flocked row is set to about 20 mm, which is similar to that of a normal toothbrush, and the engagement between the flocked base and the gripping portion is made flexible in the horizontal direction, and the opening / closing angle between both toothbrushes By providing flexibility, it is possible to easily enter the dentition from the missing part and to absorb the impact.

  As described above, the entire periodontal toothbrush of the present invention can be brushed by teaching several times even in infants in the deciduous period in addition to the effect of being able to brush without being left unpolished in a short time of about 1 minute. Even elderly people who need it can use it on their own.

BEST MODE FOR CARRYING OUT THE INVENTION

  All periodontal toothbrushes have three flocked bases, two flocked bases, and only one side, but the most effective implementation of the present invention is the two sides that were considered difficult to design belongs to.

  Embodiments will be described below with reference to the accompanying drawings. (1) (1 ') is a suitable material having durability such as saturated polyester resin and is a base for flocking. The flocking surface (2) of the base (1) (1 ') has a bottomed flocking hole (3) for flocking that is not limited in arrangement or number. The two-surface flocked bases (1) and (1 ') are flexibly maintained in a related position by a thin connecting band (4) having a thickness of about 0.3 mm. The gripping part (5) passes through the gripping neck part (6), and the gap part (8) is formed by a neck linking body (7) having a small rectangular cross section with a tapered base of 0.5 mm and a height of 2 to 3 mm. Is connected to the connecting band (4). Each of the above-mentioned parts is molded by an injection molding method integrally with both flocked bases (1) (1 ') by one molding die. (The above process is called primary molding.)

  The molded product which is the skeleton of the toothbrush obtained by the primary molding is placed on a flocking machine (not shown), and first, one or two rows of bottomed flocking holes (3) close to the center line of the entire toothbrush (3) The length of the exposed portion is cut to 5 to 6 cm by a clipper, but the shape formed by the tip may be any shape such as flat or chevron.

  Next, the remaining one or two rows far from the center line are implanted so that the exposed portion is in the 11-13 th position. In this case, a flocking method generally used for commercial products may be employed.

  After the flocking, both the flocked bases (1) (1 ') and the gap formed by the connecting band (4) and the gap (7) around the grasping neck (6) are formed by a secondary processing metal. The mold (not shown) is set in a jig (not shown) so that both flocked surfaces (2) and (2 ') maintain an angle of about 25 ° with the horizontal, and secondary molding is performed, but the molding material is primary molding By using a low-molecular-weight rubber-like resin of the same material, the fusion property with the primary molding material is strong and does not peel off under normal use conditions.

  The toothbrush released from the molding machine after the completion of all the processes in this way is flexible between the two flocked bases (1) (1 '), and the gripping part (5) and the brush part (10). Is flexible in the horizontal direction, so that the toothbrush base (1) (1 ') hits the teeth more easily when brushing the teeth than the one with a toothbrush base and gripping part integrated. There are effects such as mitigating impact.

  This toothbrush can soften the outer (lip) side and inner (tongue) side of the dentition and the mating surface at the same time. It is convenient for the elderly, but the youth is busy, so the brushing time is only one third of that of a regular hand brushed toothbrush. is there.

  When the toothbrush of the present invention is used for an electric toothbrush that reciprocates or vibrates, there is exactly the same effect.

  Recently, various systemic diseases attracted by periodontal disease are concerned, but the effect of this toothbrush can prevent them and can be expected to have an effect such as orthodontic treatment in adolescence.

  Plan view of primary molded product   Rear view of the primary molded product viewed from the opposite side   Side view of primary molded product   AA sectional view of FIG.   BB sectional view of FIG.   Plan view of the finished product   Side view of the finished product   Back view of the finished product viewed from the opposite side   Cross-sectional illustration of brushing molars with this toothbrush   Cross-sectional view of brushing the front teeth with this toothbrush   Action explanatory diagram of the present toothbrush brushing the part when the first molar is missing on the right side of the lower jaw

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1 'Flocking base 4 Connection base 5 Gripping part 6 Gripping neck part 7 Gripping part connection body 8 Gripping neck part space | gap 10 Toothbrush part

Claims (1)

  In the sweeping toothbrush having two brush portions and a gripping portion, the flocked bases of the respective toothbrushes are arranged on one plane, have bottomed flocking holes arranged as appropriate, and are thinly connected on the flocked surface. Articulated. The gripping part passes through the gripping neck and is connected to the connecting band while maintaining a gap by the neck connecting band, and is primary molded by a hard plastic injection molding method such as saturated polyester integrally with the flocked base. . Of the bottomed flocking holes, the hair is planted in 1 to 2 rows, 2 to 4 rows in total, close to the center line of the entire toothbrush, and cut with a clipper to an exposed height of about 5 mm. Next, the outer row of each brush part, or two rows, is implanted at a height of about 12 mm of the exposed part, both flocking bases are kept horizontal and about 25 ° respectively, and both flocking bases and linkages Attaching to a mold that can fill the gap formed by the band and the gap part on both sides of the holding part connecting band, etc., performing secondary molding filling with low molecular rubber resin of the same system as the primary molding, A toothbrush part and two toothbrush parts, and the whole periodontal toothbrush characterized by being mutually connected flexibly.

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