JP3165491U - Toothbrush that brushes across the dentition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toothbrush which can be applied so as to straddle a dentition, suppressed with a weak force, and can polish three surfaces of the dentition at the same time only by finely moving along the dentition. SOLUTION: A flocking base having one flocking surface at a bristle inclination angle of 10? To 15? By making the flocked surface concave and adjusting the length of the bristle, a gap row that sandwiches the flocked array is provided in the flocked flora, and anyone can easily and quickly polish a toothbrush without leaving any residue. [Selection diagram] Fig. 5

Description

  The present invention is a toothbrush (hereinafter referred to as an all periodontal toothbrush) that can simultaneously polish the tooth surface of the dentition, the lip (front) side, and the tongue (back) of the toothbrushes used by the majority of people every day. )

  All periodontal toothbrushes can be broadly divided into a normal toothbrush with a short central row of flocks, an outer row of flocks implanted perpendicularly to a flat flocked surface, and a flocked base divided into two or three parts. In a state where all the flock holes are arranged in a flat plane, the head portion having flock holes provided perpendicularly to the parting line of the molding mold of the toothbrush case, the neck portion that follows this, and the case including the grip portion are rigid thermoplastic. There is a type in which a flocking base formed by a plastic injection molding method and divided after flocking is engaged at a desired angle and secondarily molded for bonding or welding by parts. There are many other applications, but the vast majority are simply ideas and cannot be implemented.

JP 2001-346633 A Shoko 63-503276 Patent 4143882

Challenges to be solved

  In any of the above-mentioned patent documents, it is necessary to assemble a flocked base divided after flocking, and the manufacturing cost is high, and since it is assembled after flocking, hygiene management is difficult.

  In normal toothbrush production, tilted holes can be drilled up to 4 ° by force, but at higher angles it is impossible to produce molds or machine flocking, and post-processing with machine tools. It is not possible to plant a flocked hole that is inclined at 4 ° or more with respect to the flocked surface. The inclination angle to the outside of the outer row required by the present invention is about 10 ° when the width of the flocked surface is about 12 mm, and about 15 ° when the width of the flocked surface that is mainstream in Western countries is about 15 mm. It should be optimal and should be able to be drilled and planted by post-processing at this angle.

Means for solving the idea

  The flocking holes on both outer rows of the flocking base can be drilled by inclining by 10 ° to 15 ° toward the outside by post-processing with a machine tool. In the present invention, the tooth floss surface obtained by making the flocked surface into a concave curved surface, the toothbrush case obtained by the logic as described above is shortly implanted in the central row flock hole, A toothbrush that polishes the desired tooth row with a desired tooth row can be obtained by implanting a known one-length ultrafine filament of a certain length into the outer row hair flocking hole with a higher taper side and a lower cut side.

Effect of device

  The use of the toothbrush of the present invention is very simple, it is applied so as to straddle the dentition, restrained with a weak force, and by moving it finely along the dentition, the three surfaces of the dentition are polished at the same time, and the outer row flock is inclined inward Because it is difficult to come off even after rolling, it can be polished without leaving behind in a short period of time, and it can effectively remove periodontal pockets and massage the gums, so it is effective in controlling bad breath and preventing tooth decay and periodontal disease. is there.

Plan view of toothbrush flocking base obtained by injection molding showing an embodiment of the present invention Top view of the flocking base with outer row flocking holes drilled by post-processing AA 'sectional view of FIG. BB 'sectional view of FIG. Illustration of the best mode for carrying out the device

Explanation of symbols

α Spacing between outer flocks β Width of flocking base L Length of exposed portion of outer flock P Center of outer follicle hole R Center of tip of outer follicle bundle O Extension intersection of center line of both outer flocks θ Outside The angle between the flocked hair bundle and the vertical line at the center of the flocked surface The angle between θ ′ θ minus the angle at which flocking is possible even if the flocked hole and the flocked surface are inclined, and the vertical line at the center of the flocked surface

Best mode for carrying out the invention

  The present invention has a shape almost the same as a conventionally used toothbrush, the central row flock is shortened, and the outer row flock is inclined inward by 10 ° to 15 ° depending on the width of the flocking base. The object is to plant a long hair and to provide a row of voids that sandwich the dentition in the planted plexus. The production method and the optimum form are shown below.

  The width of a normal toothbrush flocking base is about 12 mm at most in Japan, but 12 to 15 mm is most popular in Europe and the United States. To do.

  Assuming the desired width of the flocked base β, the distance α between the tips of both outer flocks, and the length L of the exposed part of the outer flock, taking into consideration the diameter of the flocked hole and the dimensions from the flocked hole to the edge of the flocked base 5 and the angle between the outer row follicle holes and the center of the flocked surface is θ, which is about 10 ° when measured in the figure. Is possible.

  In the present invention, if the arc passing through the point P is taken as the flocking surface of the outer flocking line around the intersection O of the extension line connecting the points P and R in the figure and the vertical line of the flocking surface center, the flocked hole is the flocking surface. This makes it possible to plant the hair.

  If the inclination of the flock hole is up to 4 ° with respect to the flocked surface, it is possible to flock even if it is inclined. Therefore, it passes the point P and is centered on the intersection O ′ with the vertical line of the flocked surface center within the range of 4 °. If the arcuate concave surface is the flocked surface, the curvature of the flocked surface becomes loose as shown in the figure.

  Further, among the arc-shaped flocking surfaces, the flocking surface of the central flocking row is a horizontal line in the figure, and when the toothbrush housing is formed at the part, the central flocking hole is perpendicular to the flocking surface and is machine-cut. It is formed with a toothbrush housing by an injection molding method using a hard thermoplastic such as ABS that cannot be burred.

  Both outer row flock holes that cannot be formed by injection molding are drilled by post-processing with a CNC drilling machine or the like.

  If the flocks are short in the middle row and long in both outer row flocks, a row of voids is provided in the flock plexus, and a toothbrush that brushes across the row of teeth is obtained.

  The toothbrush that is polished by sandwiching the tooth row obtained by the above method requires post-processing by a CNC drilling machine or the like, but the time required for drilling all the flock holes on both outer rows is about 10 seconds. Compared with the method described in 1), workability is good, mass production is possible, and there is no assembly work of the toothbrush housing after flocking.

Claims (1)

  Among toothbrushes of hand brushing and electric toothbrushes that reciprocate, a toothbrush in which the vegetation plexus is composed of a plurality of rows and columns of flocks, the inclination angle to the inside of the center line of the desired outer follicle bundle, both outer flocks The both ends of the bottom of the trapezoid determined by the distance between the tips of the bundle and the length of the exposed portion of the outer flock are defined as the center position of the outer flock, and the center of the outer follicle bundle center line is the center of the outer flock. The inner flocked surface of the arc with a radius of 2 is the outer flocked surface without drilling, the central flocked surface is the same arc as the outer flocked surface, or the plane connecting the edges of the outer flocked holes, and the gold that drills the central flocked hole Formed integrally with the neck and the gripping part by the mold, the inclination angle is large, and both outer flock holes that cannot be formed are drilled at the originally planned position and angle by post-processing with a CNC drilling machine etc., and shortened to the central flock hole , Planted long in the outer work pore Toothbrush to brush across the teeth to be.

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