JPH08164024A - Toothbrush - Google Patents

Abstract

PURPOSE: To improve the effect of cleaning of not only the places between teeth, but also the occlusal faces, the flat surfaces, and the gums, by making it easy for a brush to enter the places between teeth when cleaning, regardless of the direction of movement of the toothbrush. CONSTITUTION: The brush has a plurality of bundled bristle parts at a head part 1, which are formed like angles by a method wherein neighboring bundles of bristle 2 longitudinally and laterally arranged on the head part 1 with a suitable interval, are inclined to a hair planting surface 11 of the head part 1 to mutually gather the tops of all bundles of bristle 2. In addition, first angle- shaped bundled bristle parts 3 inclined to the inside of the length of the head part 1, are arranged on the outermost sides of the width of the head part 1, so that the effect of cleaning of the places between teeth, and the effect of cleaning of the occlusal gaces, the flat surfaces the gums or the like, can greatly be improved regardless of the way of toothbrushing, and the plaques can efficiently be removed even in the places between teeth which may have differences among individuals, regardless of the place to be brushed and the way of brushing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush for cleaning the oral cavity, particularly plaque removal in the interdental part and occlusal and smooth surfaces of teeth.
The present invention relates to a toothbrush capable of effectively cleaning the tooth neck and the like.

[0002]

2. Description of the Related Art Conventionally, in order to enhance an interdental portion cleaning effect,
A mountain cut with irregularities on the brushed surface of the flocked part, for example, a bunch of vertically flocked bristles whose adjacent hair bristles are cut into a mountain shape, that is, an inverted V shape (Actual No. 49-121765, No. 52-107766) or a hair transplant part, the adjacent hair bundles are inclined so as to support each other at their tips, and a mountain shape, for example,
A toothbrush that is planted in an inverted V-shape and used as a flocked portion is used for rolling cleaning. (Actual fairness 2-6821
No. 2, Jitsuhei 2-6822, Jyokai 64-15541
issue)

[0003]

In these conventional toothbrushes, attention is focused only on improving the cleaning effect on the interdental portion, and the tufts adjacent to each other in the longitudinal direction of the tufting portion have an inverted V-shaped tuft or a brush surface. However, when brushing the toothbrush, the directionality is determined, that is, when the toothbrush is moved up or down or left or right, the tip of the brush enters the interdental part for cleaning. However, when moving the toothbrush in the other direction, the tip of the brush does not enter, and it is difficult to enter, so there is a drawback that plaque removal cannot be performed efficiently, and the brushing operation and the brushing method are limited for brushing operation There is an uneven functional surface such as difficulty in brushing, it does not necessarily match the brush's brushing surface, cleaning cannot be done to remove plaque in the interdental part, and the conventional toothbrush for interdental part cleaning Is the shape of the brush However, when the brushing method or the brushing area is limited, the crest-shaped hair tips can efficiently enter the interdental part for cleaning, but this effect appears when the rolling brushing method is used. However, there is a problem in that it is difficult to clean the parts other than the interdental part such as the cervical part, the occlusal surface, and the smooth surface where plaque is likely to adhere due to the shape of the brush. On the other hand, when cleaning the occlusal and smooth surfaces of the teeth, the vertical flocked hair bundle has better cleaning power than the inverted V-shaped hair bundle.
It is difficult to clean the interdental part, and if the inverted V-shaped bristle bundle and the vertical bristle bristle bundle are mixed, the brush length of the vertical bristle bristle bundle is equal to or longer than the brush height of the inverted V-shaped bristle bundle. However, there is a drawback that the tip of the brush of the inverted V-shaped bristle bundle cannot enter the interdental part, so that the interdental part cleaning effect is reduced and the plaque removal effect is reduced.

The present invention eliminates these conventional problems,
Regardless of the tooth brushing operation, it is possible to greatly improve the interdental cleaning effect and the cleaning effect of the occlusal surface, smooth surface, tooth neck, etc. of the tooth, and there is no limitation on the cleaning site or the cleaning method. The object of the present invention is to provide a toothbrush capable of effectively removing plaque even in an interdental part having individual differences.

[0005]

According to the present invention, a plurality of brushes are provided at appropriate intervals in a longitudinal direction or a width direction of a head portion in order to implant a hair bundle in the head portion of a toothbrush. The bristle bundle is a toothbrush in which a plurality of bristle portions formed in a mountain shape by inclining the bristle tips of the bristle bundles with respect to the flocking surface of the head portion are provided in the head portion. The angled tufts that face each other and are inclined inward in the longitudinal direction of the head are arranged in the outermost row in the width direction of the head.

[0006]

[Function] During brushing, no matter which direction the toothbrush is moved to brush the teeth, the brush tips of the chevron-shaped bristles easily enter the interdental areas, and the distance between the crests of the brush tips is It is easy to match the interdental part with the teeth, the plaque in the interdental part can be removed accurately, and the interdental part can be effectively cleaned. Since it is concentrated, it is easy to clean the occlusal surface, and it is possible to effectively remove plaque adhering to the fissure and the interproximal part of the molar teeth, and to brush accurately the areas where the tips of hair were hard to reach. In addition, it can be used as a toothbrush with less hair collapse, having effective bristles to reach the cervical part, enhancing the cleaning effect on the cervical part, and having excellent durability.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, a plurality of brushes are used in the longitudinal direction or the width direction of the head portion 1 to implant a hair bundle in the head portion 1 of the toothbrush. Adjacent tufts 2 and 2 provided with appropriate intervals in
Head portion 1 of the flocked surface 1 ₁ head 1 Tabake portion formed in Yamagata combined inclined asked the bristles of the respective tuft against
A plurality of toothbrushes provided in the head portion 1, the first chevron-shaped bristles 3 having the bristles of the bristles 2 facing each other and being inclined inward in the longitudinal direction of the head 1. The toothbrush is arranged in the outer row, and the second chevron-shaped bristles 4 that are inclined in the longitudinal direction of the head portion 1 are mixed and arranged to form a toothbrush.

Then, as the two adjacent hair bundles 2,
Inclined flocked surface 1 ₁ of the head portion 1, for example 1-5 ° preferably implanted at a tilt angle in the range of 3 degrees before and after, Yamagata Tabake of inverted V-shape together tuft of the capillary bundles 2 are more The parts 3 and 4 are formed. When the brush height is 10 to 12 mm and the bristle hole pitch is 2.5 to 3.0 mm, the tops of the hair bundles 2 come into contact with each other to form a clean inverted V shape. formation can be, in order enhances the hair penetration performance of the gullet, also, the top shape of the tufts 2 is also straight cut parallel horizontal plane flocking surface 1 _1, or a chevron slope of the mountain cutting cut. This Yamagata bundle hair part 3,
The brush of 4 has a thickness of 5 to 10 mils, preferably 8 mils, and a height of 11 to 12 mm is practically suitable, and a toothbrush having an ordinary hardness can be used. The brush material is nylon, PBT, or the like. The shape of the tip of one brush may be any of a round shape, a tapered shape, a super tapered shape, and the like. When manufacturing the angled bristles 3 and 4, since the angle of inclination of the bunch 2 is 5 degrees or less, the cost of the molding die can be dealt with in the same manner as in the case of the flocked holes of the vertical bunch, and the cost is increased. In the flocking work, if the brush and the flat wire are press-fitted in the vertical direction, the hair can be naturally angled along the flocking hole and the production can be performed without increasing the cost.

As the flocking of the head portion 1, the vertical bristle bundles 5 which are planted in the vertical direction and whose flocking height is lower than the bristle bristle portions 3 and 4 are mixed, and the bristle bristle portions 3 and 4 are mixed. And the advantages of the vertical bristle bundle 5 are combined, and the respective shortcomings are complemented by each other, and the bristle tips of the chevron-shaped bristle portions 3 and 4 reach the interdental portion stably, The bristles of the vertical bristles 5 that come into contact with the tooth surface and gums next to the bristles do not interfere with the cleaning of the interdental part, and the interdental part and the smooth surface and occlusal surface of the tooth are effectively cleaned at the same time. It is good to consider so that in this case, the angled bundles 3 and 4 and the vertical bundle 5 are
It is preferable to arrange them uniformly on the head portion 1 as much as possible so that the cleaning effect is even.

Further, the first angled tufted hair portion 3 has a longitudinal direction of the head portion 1 as a reference line, and from the reference line to 0 degree or more (not including 0 degree) to 45 degrees, preferably 10 to 2 degrees.
A bunch of bristles 2 arranged in opposition to each other on a straight line that intersects in the direction of 0 degree is appropriately selected and used, and is mixed with the second chevron bristles 4 so that the toothbrush can be moved in any direction to form an inverted V shape. The brush of the flocking unit is designed to enter the interdental part.

In the example shown in FIG. 1, the second chevron bundles 4 arranged in parallel to the longitudinal direction of the head portion 1 are in the middle, and the first chevron bundles 3 groups are inclined inward in the longitudinal direction. Are arranged outside, but the both are alternately arranged, and the vertical bristle bundle 5 is provided at the tip end position of the head portion 1, and the vertical bristle bundles 3 and 4 are alternately provided in the longitudinal direction. The inverted V-shaped first chevron-shaped bristles 3 on the outermost row in the width direction of the head 1 are
The brush heights of the second chevron-shaped bristles 4 other than the chevron-shaped bristles 3 are on the same level as the brush surface, but may not be on the same plane.

In the example shown in FIG. 2, the vertical bristle tufts 5 are arranged between the head portion 1 and the first angled tufted bristle portions 3 in the outermost array, and the first angled tufted bristle portions 3 are inclined outward. In order to enhance the cleaning effect on the tooth neck, a flocked brush cleaning surface is formed by arranging the vertical bristle bundles 5 at the tip position of the head portion 1 by alternately arranging the individual bristle bundles 6. I am doing it.

In the example of FIG. 3, the second chevron-shaped bristles 4 and the vertical bristles 5 are alternately arranged in the longitudinal direction between the first chevron-shaped bristles 3 and 3 of the head portion 1, and the interdental portion is provided. , The occlusal surface and the smooth surface can be efficiently cleaned. In this case, it is preferable that a plurality of single hair bundles 6 inclined outward are provided in the outermost row to form a cleaning surface having hair bundles that effectively reach the neck of the tooth.

In order to bring the tips of the hair bundles closer to each other, the hair bundles are made to face each other with respect to the plane of the head portion, or the inclined hair bundles 2 are formed by inclining in the same direction.
A combination of a vertical hair bundle and an inclined hair bundle may be used, and in some cases, the combination of the hair tips of the hair bundles on the diagonal line of the arranged hair bundles may be set as one unit. Even so, the bristle tips are aligned and aligned in the longitudinal direction of the head portion 1 in the width direction and other oblique directions. In addition, even if the angle-shaped cuts are slightly out of phase in each row of the flocked part and the tooth-to-tooth spacing is different, any of the crests will come into contact with the interdental part during tooth brushing. It is also possible to thoroughly clean the part. In the brush, nylon bristles are bundled and planted in the flocking holes provided in the head part 1 to form a flocked part. However, if necessary, natural bristles may be mixed with synthetic bristles such as nylon bristles. It can also be planted. The size of the head portion 1 is preferably such that it can be moved freely in the mouth and the plaque adhering to the molar fissure portion and the interproximal portion is effectively removed.

[0015]

According to the present invention, in order to implant a hair bundle in the head portion of a toothbrush, adjacent hair bundles provided with a plurality of brushes at appropriate intervals in the longitudinal direction or the width direction of the head portion, In a toothbrush provided with a plurality of bundled hair portions in the head portion, which are inclined with respect to the hair-implanted surface of the head portion and are formed in a mountain shape by bringing together the bristle tips of each hair bundle, inclining inward in the longitudinal direction of the head portion. The first chevron-shaped bristles and the second chevron-shaped bristles that are inclined in the longitudinal direction of the head portion are mixedly arranged, so that the bristle strength of each tuft is strong and there is little hair collapse and there are individual differences. Since the tip of the brush can easily hit the interdental part consisting of different teeth and teeth, plaque removal in the interdental part can be performed accurately and effectively, and the toothbrush can be moved in any direction. Can be used for cleaning, and a chevron brush with an inward slope can be used. By arranging in the outermost row of the brush part, the occlusal surface can be cleaned more effectively, and the brush can have a good cleaning effect and durability, and the presence of the slanted bristles makes the brushes brush together. Since it has a form that increases the strength, the cleaning function can be greatly improved, and it is possible to make a toothbrush that is easy to use. Also, not only the cleaning of the interdental part but also the occlusal surface, smooth surface and cervical part of the tooth The cleaning effect of can be enhanced.

[Brief description of drawings]

FIG. 1 is a flocked portion showing an embodiment of the present invention, in which (a) is a plan view and (b) is a side view thereof.

FIG. 2 is a flocked portion showing another embodiment of the present invention, (a) is a plan view and (b) is a side view thereof.

FIG. 3 is a hair-implanting portion of another example, (a) is a plan view and (b) is a side view thereof.

[Explanation of symbols]

1 Head Part 1 ₁ Flocking Surface 2 Hair Bundle 3 First Angle Hair Bundle Hair Part 4 Second Angle Hair Bundle Hair Part 5 Vertical Hair Bundle 6 Single Hair Bundle

Claims (3)

[Claims] 1. To implant a hair bundle in a head portion of a toothbrush, adjacent hair bundles provided with a plurality of brushes at appropriate intervals in a longitudinal direction or a width direction of the head portion are hair transplants in the head portion. In a toothbrush in which a plurality of bristles formed in a mountain shape by inclining the bristles of each bunch to each other with respect to the surface are provided in the head part, the bristles of the bristles face each other and A toothbrush characterized in that angled bristles that are inclined inward in the longitudinal direction are arranged in the outermost row in the width direction of the head portion. 2. The toothbrush according to claim 1, wherein the head portion is provided with a vertical bristle bundle that is planted in a vertical direction in which the bristle height is lower than that of the chevron-shaped bristle portion. 3. The toothbrush according to claim 1, wherein the head portion is mixed with an inverted V-shaped chevron-shaped tuft portion in which a tuft of hairs inclined along the longitudinal direction of the head portion is arranged to face each other.