JP2011004905A - Toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toothbrush capable of helping usefully and satisfactorily disposing toothpaste onto the tooth faces under retaining the toothpaste in a recess in the middle and of efficiently cleaning the whole of the tooth faces of the tooth parts, molar engaging faces, tooth necks, incisors and molars in the use of the toothbrush with the toothpaste.SOLUTION: A toothbrush body 1 includes a filling part 2 and a holding part 3. In the bristle of the bristle-implanting part 2, the length thereof is longer in the bundle 4 provided on the outer peripheral part and is shorter in the bundle 5 provided on the inside part to form the recess 6 for retaining the toothpaste in the middle.

Description

  The present invention uses a dentifrice attached to a toothbrush, and in order to spread the tooth surface without waste while holding the dentifrice, the interdental portion, molar occlusal surface, cervical and anterior teeth, and the entire tooth surface of the molar tooth. The present invention relates to a toothbrush that can be effectively cleaned.

As is well known, the toothbrush forms a flocked portion on a head (flocked portion) integrated with a handle (gripping portion) and implants a brush on the flocked portion. Such a toothbrush usually cuts the brush into equal lengths (lengths) and arranges a plurality of hair bundles at equal intervals on the flocked portion.
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  In the conventional toothbrush described above, the height of each bristles is the same, so that the dentifrice easily spills from the toothbrush, and the dentifrice does not spread over the whole during the toothbrushing, so that there is a problem that it cannot be effectively cleaned. An object of the present invention is to provide a toothbrush that can be effectively cleaned while maintaining the state of a toothbrush with a dentifrice as much as possible.

  The toothbrush according to claim 1 of the present invention is a toothbrush body composed of a flocked portion and a gripping portion, and among the brushes of the flocked portion, the length of the brush is longer by the bunch of the outer peripheral portion and the bunch of the inner portion. By forming it short, a concave portion capable of holding the dentifrice can be formed in the central portion.

  According to a second aspect of the present invention, in the toothbrush according to the first aspect, the lengths of the bristles of the outer peripheral portion where the flocked portion is formed long are one or several rows.

  Claim 3 of the present invention is the toothbrush according to claim 1 or 2, wherein the length of the bristles of the outer peripheral portion is gradually shortened from the outside to the inside.

  The toothbrush according to the present invention has a recess formed in the central portion of the upper surface of the brush, and when the dentifrice is put into this recess, the dentifrice can be retained during brushing, and the outer peripheral portion protrudes easily and spreads outward. The part can be inserted between the teeth or the neck of the tooth and can be effectively cleaned.

  In the accompanying drawings, FIGS. 1 to 3 are simplified views of the toothbrush of the present invention, FIG. 1 is a plan view, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. Sectional view along line B, FIGS. 4 and 5 are schematic views of a state where the dentifrice is inserted into the toothbrush of the present invention, FIG. 4 is a sectional side view, FIG. 5 is a sectional view on the end face side, FIG. 7 and FIG. 7 are cross-sectional views showing the deformation of the flocked state, and FIGS. 8 to 12 are schematic views of the use state of the tooth and the toothbrush of the present invention.

  First, in FIG. 1 to FIG. 3, the toothbrush body 1 is composed of a flocked portion 2 and a gripping portion 3. In the flocked portion 2, the length of the brush is long at the outer peripheral portion and the bristles 5 are long at the inner portion. By forming it short, the recess 6 is formed in the central portion. Note that the length of the brush of the hair bundle 4 at the outer peripheral portion is set to a few rows. As shown in FIGS. 4 and 5, the dentifrice 7 can be securely held in the recess 6 by inserting a paste or gel dentifrice 7 as shown in FIGS. 4 and 5.

  As a modification, as shown in FIGS. 6 and 7, it is considered that the length of the hair bundle 4 in the outer peripheral portion is gradually shortened from the outside toward the inside. Thus, it is considered that the contact of the hair bundle with the teeth can be made sharper.

  FIG. 8 to FIG. 12 are schematic views showing the use state of the toothbrush of the present invention with respect to teeth, and FIG. 8 shows the small clefts of the molar occlusal surface by applying the concave part of the brush perpendicular to the occlusal surface. Cleaning can be done effectively. FIG. 9 effectively cleans the outer brush bundle in the gingival crevice (pocket) by gently inserting the outer brush bundle in the gingival sulcus at 30 ° to 45 ° with respect to the tooth axis.

  10 and 11, efficient cleaning can be achieved by using a short central brush on the lingual side and the lip side. FIG. 12 shows two examples of a state where the lingual and labial tooth neck portions can be efficiently cleaned by using a long bundle of brushes on the outside.

The present invention is a simplified plan view of a toothbrush. FIG. 2 is a sectional view taken along line AA in FIG. Sectional drawing which follows the BB line of FIG. Side sectional drawing of the state which inserted dentifrice into the toothbrush of this invention. Sectional drawing of the state which inserted the dentifrice into the toothbrush of this invention. The sectional side view which shows the deformation | transformation of the state of flocking. Sectional drawing which shows the deformation | transformation of the state of flocking. The figure which hits the concave part of a brush perpendicularly to an occlusal surface. The figure which made the hair | bristle bundle of an outer brush 30 degrees-45 degrees with respect to a tooth axis. The figure which uses the short brush of a center part for the lingual side and the lip side. The figure which uses the short brush of a center part for the lingual side and the lip side. Two examples of a state in which only a long hair bundle of a brush on the outer side is used on the lingual side and the labial side of the neck.

1 Toothbrush body 2 Flocked part 3 Gripping part 4 Hair bundle (outer peripheral part)
5 Hair bundle (inner part)
6 Recess 7 Dentifrice

Claims (3)

In the toothbrush body consisting of a flocked portion and a gripping portion, among the brushes of the flocked portion, the length of the brush is long at the outer peripheral portion and shorter at the inner portion, thereby providing a dentifrice at the center portion. The toothbrush characterized by being able to comprise the recessed part which can be hold | maintained. 2. The toothbrush according to claim 1, wherein the length of the bristles of the bristles in the outer peripheral portion where the brush is formed long is one row or several rows. 3. The toothbrush according to claim 1, wherein the length of the bristles in the outer peripheral portion is gradually shortened from the outside toward the inside.

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