JPS5934209A - Toothbrush - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to improvements in toothbrushes.

Conventionally, the bristles of toothbrushes have their tips aligned, or are cut so that the bristles are aligned in the middle direction of the bristle surface and are serrated in the longitudinal direction of the bristle surface.

By the way, bristles with uniform tips are stiff and can damage the gums because each fiber is attached to other fibers, and if the teeth move in and out frequently, the teeth that are stuck in the teeth cannot be brushed properly, which can cause damage to the teeth. It was also insufficient to remove debris between the teeth.

Also, bristles with serrated tips are good for brushing teeth, but they damage the gums.

Then, the brush bristles of the JJu, the old, and the later, the outer rr+H, curve outward and become unusable at an early stage.

This invention solves the above-mentioned problems of conventional toothbrushes, and its purpose is to ensure that teeth can be brushed, bacteria can be removed, and IW materials can be removed between teeth. This is a southern brush with fewer outward curves of the bristles.

This invention divides the flocking brush hair bundle into a plurality of groups in the length direction of the flocking surface, and the fiber length of each hair bundle of each flocking hair bundle group is made to be different in length so that the tips of the hairs are stepped. It is characterized in that the longest fibers are aligned toward the center of the hair bundle group, the shortest fibers are aligned toward the radial direction, and each hair bundle is tilted toward the center.

Examples of the present invention will be described below with reference to the accompanying drawings.
In FIG. 1 and FIG. 2, A is the toothbrush stand, and B is the brush part planted on the bristle-planting surface 1 of the stand A.

The brush part B is divided into four groups in the length direction of the flocked surface 1, and each hair bundle 3 of each flocked hair bundle group 2a, 2b, 2C12d.
As shown in Figure 3, the length of the fibers is varied so that the tips are step-like, and the longest fiber a is placed on the center side of the hair bundle group, and the shortest fiber is placed on the center side of the hair bundle group. They are aligned in the radial direction.

Each group of hair bundles shown in the figure has a center point in the width direction of the flocked surface 1.
The flocked type consisted of a vertical row C and a horizontal row d that crossed the center of the vertical row C.

Also, as shown in the enlarged view of Fig. 4, the method of planting the bristles of each bristle bundle in different lengths so that the ends of the bristles are step-shaped is shown in Fig. 4.
However, when folded in half, a set of fibers e with significantly different lengths of both fibers e is folded in half, and a set of fibers e with both lengths of the same length and a set of fibers e whose length is intermediate between the long and short lengths of the fiber e is obtained. It is made up of the fibers f of this set, and can be flocked by an automatic machine by holding the bifold fibers f within the bifold of the fiber e to form a bundle.

However, it is necessary to move the flocked rows at intervals as L6 in the direction of the hair bundle, and to change the direction of movement of the flocked surface from the forward direction to the opposite direction, or from the forward direction to the opposite direction when facing sideways.

This invention is as described above, and in this toothbrush, the flocked bristle bundles are divided into a plurality of groups in the length direction of the flocked surface, and the bristle bundles of each bristle bundle group are directed toward the center of the bristle bundle group. Because the tips of the bristles on the brush section are uneven with significant gaps throughout, it is possible to reliably brush the surface of any tooth even if there are many comings and goings of the teeth, and it is also possible to clean the individual surfaces of the winter bristles. Since the hair bundles are arranged in steps from the longest to the shortest, the long fibers have the effect of easily entering the openings of the teeth and strokes and removing impurities.

Also, in the winter hair bundle group, the long fibers are on the center side of the hair bundle group,
The short fibers are aligned in the radial direction of the bristle group, and as mentioned above, each bristle strand is slanted towards the center of the bristle group, so hold the toothbrush horizontally and move the brush part up and down. In detail, for teeth in the upper jaw, brushing moves from the top to the bottom, and for teeth in the lower jaw, brushes move from the bottom to the top.Also, to brush the back teeth laterally, to brush the back side of the teeth. In any usage in which the brush stand moves in the length direction, the bristles on the side in the direction of movement are supported by the bristles on the rear side, and the outer fibers move outward as they are used, similar to those found in conventional toothbrushes. It has the advantage of not bending and can withstand long-term use.

Furthermore, the fibers in each brush bristle bundle are short in the radial direction (outside) of each bristle group, and the fibers in the center of the bristle group are long. Coupled with the fact that the direction is inclined towards the center of the bundle group (ill), when you brush your teeth with a toothbrush, the long fibers are attached to the gums, the short fibers are attached to the teeth, and the short fibers are strong and the long fibers are If you have a weak back, you can perform pine surgery and brush your teeth without damaging your gums.

As shown in Figure 4, by making the fibers thinner or more flexible than the fibers f that embrace the fibers e on the outside of the fold, the longest fibers become even softer; The uke is supported by the fibers on the center side (dorsal side) of the hair bundle without straining, resulting in fibers with sufficient elasticity.

[Brief explanation of drawings]

The drawings show a practical example of the present invention; Fig. 1 is a front view of the main parts of the toothbrush, Fig. 21 is a plan view of the second part of the toothbrush, Fig. 3 is the same diagram on the left; Same as above (
It is an enlarged vertical cross-sectional view of this main part. A... stand, 1... flocked surface, B... brush r11.
2a, 2b, 2c, 2d... flocked hair bundle group, 3... hair bundle, a... longest fiber, b... shortest #11! Kasuri, C...
Column, d...Row row Patent applicant Ken Okazaki - Same agent Kama 1) Bun 2

Claims (2)

[Claims] (1) Divide the brush hair bundles onto the flocked surface into multiple groups in the length direction of the flocked surface, and set the fiber length of each hair bundle in each flocked hair bundle group so that the tips of the bristles are stepped. A toothbrush characterized in that the lengths of the bristle bundles are different, the longest fibers are aligned toward the center of the bristle bundle Itt, the shortest fibers are aligned toward the radial direction, and each bristle bundle is tilted toward the center side. (2) Each of the flocked bristle bundle groups comprises a vertical row extending in the width direction of the brush bristle surface in the width direction, and a horizontal row crossing the center of the vertical row. toothbrush.