JPH09187319A - Toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clean and polish between teeth in accordance with any poor alignment of teeth by forming a bent part of a specific angle in part of a grasping member, and installing a one-point brush member having a bundle of planted hairs at a tip of one joint member in such a way that its protruded angle from the joint member is changeable. SOLUTION: A grasping member is provided with a bent part 3 which is bent from a grasping part close to a joint end by an angle of 5-15deg. forward to the surface side. A joint member 4 has an engagement protrusion (or engagement hole) 4a at one end, an installation base 4a having a semispherical recessed part is integrally formed at the other end to be in contact with a connection arm part having a cut part 4b in part of the surface side, and a male screw is formed at an upper end circumferential edge of it. A one-point toothbrush member 5 comprises a hole in an upper surface of a brush base 5a in which a bundle of brush hairs 5b are planted, where a spherical body is formed at a lower part of the brush base 5a. A radius of it is set to be similar to a radius of a semispherical recessed part. A tightening member 6 comprises a circular frame body 6a and a handle 6b integrally formed with it to be protruded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush capable of polishing a large number of teeth standing on a curved surface with a bundle of bristles of a toothbrush and a variable protrusion angle with respect to the stem. is there.

[0002]

2. Description of the Related Art A conventional toothbrush has 6 to 4 at the tip of the stem.
The hair was planted in the 0 hole. However, the teeth form a curved surface and stand up, and there are some cases in which the teeth are abnormally aligned, and it is impossible to polish every corner with a toothbrush having such a large flocking area.

In order to improve this, a toothbrush in which one hole is formed at the tip of the stem and only one bundle is bristled has been used in Europe for several years.

[0004]

As described above, it is difficult for the conventional toothbrush to completely polish the teeth that form a curved surface and stand up, whereas the toothbrush having only one bundle has the brush portion. It is possible to clean and polish deeply between the teeth, but when polishing the back teeth of the front teeth and the teeth of the back teeth, part of the stem hits the front and back teeth and the tip of the brush reaches deep enough. It was in a non-use state, and plaque remained, which caused tooth decay.

[0005]

In order to solve the above-mentioned problems, the present invention has a structure in which a stem of a toothbrush is divided into a holding member and a connecting member and connected to each other. As a structure for forming a bent portion with an angle of, and attaching a one-point brush member having a bundle of bristles at the tip of a connecting member that is connected to the bent portion so that the protruding angle with the stem is variable, Correspondingly, it is a brush that can clean and polish the space between teeth.

Since the stem has the two-body connecting structure as described above, instead of the one-point toothbrush having one bundle of bristles, a brush portion of a normal shape having 4 to 40 bundles of bristles at one end. The toothbrush protruding from the toothbrush can be fitted and connected for polishing, thereby improving the efficiency of toothbrushing.

A spherical portion is formed in the lower part of the flocking table of the one-point brush member, and the spherical portion is inserted into and attached to a hemispherical concave portion formed at the tip of the connecting member so that the protrusion angle of the brush with respect to the stem is increased. It has a variable structure.

Further, in another embodiment, a one-point brush in which a disk-shaped portion is continuously provided on the lower part of the flocking table of one hole and a shaft is projected at the center thereof, and the disk-shaped portion is the tip of the connecting member. A mechanism is used that is inserted between a pair of sandwiched support plates formed in Fig. 3 and is rotatably supported, and after pressing and holding both sides of the support plate after adjusting the angle.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a toothbrush to which a one-point brush member according to the present invention is attached.
In FIG. 2, in the stem 2, the gripping member 3 and the connecting member 4 are fitted into the fitting hole (or fitting projection) 3a.
It is detachably joined by inserting and fitting 4a.

The gripping member 3 is formed in the vicinity of its joint end and has a bent portion 3b which is bent forward (front surface side) from the gripping portion at an angle of 5 to 15 degrees. This bending angle of 5 to 15 degrees was selected based on the knowledge obtained from the inventor's long-term brushing instruction, treatment experience as a dentist, and research on the relationship between tooth alignment and the occurrence of tooth decay. is there.

The connecting member 4 is in a hemispherical shape in contact with the connecting arm 4c having the fitting protrusion (or fitting hole) 4a formed at one end and the partially cutout portion 4b on the front surface at the other end. Recess 4d
The mounting base 4e having the above is integrally formed, and the male screw 4f is engraved on the upper edge of the mounting base 4e.

One point brush member 5 is a flocking table 5.
A hole is provided on the upper surface of a, and a bundle of brushes 5b is planted, and a spherical body 5c is formed in the lower part of the flocking table 5a. The radius of the spherical body is the same as the radius of the hemispherical recess 4d. Is the diameter.

The fastening member 6 includes a handle 6 on an annular frame 6a.
It is desirable that the annular frame 6a has a smaller diameter than the spherical body 5c of the brush member 5, and the inner surface thereof is formed into a split spherical shape that fits the spherical surface. Further, a female screw 6c is formed on the inner peripheral surface of the lower portion of the annular frame 6a. Further, the handle 6b has the same shape and the same size as the cutout portion 4b of the connecting member 4, but may have any shape.

FIG. 4 shows a standard toothbrush in which brushes 10b are planted in a large number of bristles formed at the tip of the connecting member 10. The fitting protrusion (or fitting) is provided on the other end of the connecting member 10. A joint hole 10a is provided so as to project.

The toothbrush according to the present invention is composed of the above-mentioned components and has a hemispherical recess 4c formed at the tip of the connecting member 4.
The spherical body 5c formed on the lower part of the one-point brush member 5 is engaged and mounted on the female screw 6c and is engraved on the pressing ring 6a.
Is engaged with the male screw 4f and the handle 6b is rotated to advance the screwing to fix the spherical body 5c. In this way, the one-point brush member 5 is attached to the connecting member 4. The brush 5b of the toothbrush assembled as described above projects in a direction perpendicular to the connecting member 4, and is distributed in this form.

The connecting member 4 to which the one-point brush member 5 is attached as described above is connected to the holding member 3 and used for polishing between teeth. Since the bent portion is formed in the grip member 3, when the connecting member is connected to this grip portion, the bending angle AF of the connecting member with respect to the grip portion of the grip member is 175 to 165 degrees on the front side, and When the connecting member is fitted and connected to the gripping member upside down, the angle B is 185-185.
It becomes 195 degrees. A mounting angle of 175 to 165 degrees is suitable for brushing the back teeth from the surface side of the teeth, and the latter 185 to 195 degrees does efficient polishing for brushing the back teeth from the inner surface side of the teeth. It is an angle to get.

However, when the brush projects in the direction perpendicular to the connecting member 4, the connecting member comes into contact with the other teeth and the tips of the brush do not fully penetrate into the interdental spaces, so that the teeth on both sides are evenly distributed. There are cases where it is impossible to polish. In this case, the handle 6b of the tightening member 6 is rotated to loosen the screw, the brush member 5 is tilted back and forth in the longitudinal direction of the connecting member 4, and the handle is returned again to fix the brush member. For example, when the left back tooth and the second tooth are ground from the inside, if the brush member 5 is tilted forward and used, not only the teeth but also the side surfaces of the teeth on both sides are evenly contacted by the brush. ,
Further, when polishing the spaces between the teeth from the outside, it is preferable to incline the brush member toward the front side. By inclining the brush portion back and forth in this manner, the tip of the brush can enter between both teeth and grind the teeth on both sides substantially evenly in any arrangement of teeth.

When the grinding between the teeth is completed, the connecting member is removed from the gripping member, and instead of this, a normal type brush member shown in FIG. 4 is fitted and attached. Then brush the tooth surface efficiently. Also in this case, brushing can be effectively performed by alternately connecting the connecting member and the gripping member to the front and back, as in the case of using the one-point brush member. Thus, plaque is completely removed by exchanging and using toothbrushes having different shapes for tooth brushing and tooth surface brushing.

FIG. 3 shows another embodiment. A pair of bearings having a fitting projection 7a formed at one end of the connecting member 7 and shaft holes 7c, 7c formed substantially at the center at the other end. Plates 7b, 7
b is projected, and an outwardly projecting support shaft (not shown) for pivotally mounting a cover described later near the base end portion thereof.
Alternatively, the shaft hole 7d is formed. Further, the shaft hole 7
Protrusions (or recesses) 7e are radially inscribed on the inner surfaces of the bearing plates 7b, 7b which are concentric with c, 7c.

In the brush member 8, a bunch of brushes 8b are planted on the upper surface of a planting table 8a, and the bearing plate 7 is formed on the lower part thereof.
A disc 8c having a thickness that can be closely inserted is integrally formed between b and 7b. A shaft hole (or shaft) 8d is provided at the center of the disk, and convex ridges (or recesses) 8e are radially inscribed on both side surfaces concentric with the shaft hole 8d. In this brush member 8, the disk 8c is attached to the bearing plate 7
It is rotatably attached by being inserted between b and 7b and being pivotally supported.

The pinch holder 9 is pivotally supported in the shaft holes 7d near the base ends of the bearing plates 7b, 7b, and pivots from below so as to rotatably cover the pair of bearing plates 9b. It is a box-shaped body of 9c. Although the support shaft 9a is integrally formed in the drawing, a separate shaft may be used. This pinch holder 9
When the bearing plates 7b, 7b are covered with the pair of bearing plates 7
Both side surfaces of b and 7b are constrained, so that the disk 8c sandwiched between the bearing plates is strongly sandwiched at the side surfaces, so that it cannot easily rotate.
Further, the radial projections 8e formed on the disk 8c engage or engage with the projections (or recesses) on the inner surface of the bearing plate 7b to prevent the disk from rotating. The one-point brush member having such a configuration is attached to the gripping member 3 and used for polishing between teeth in the same manner as described above. In this case, in the process of grinding the teeth, the angle of the brush portion with the connecting member 4 is changed by pushing down the tip of the clamp holder 9 with the shaft 9a as a fulcrum to uncover the bearings 7b, 7b with respect to the disk 8.
Is released, the brush member is rotated at an appropriate angle, and the bearing holder 7b is covered with the holding member 9 again.

[0022]

As described above, the toothbrush according to the present invention is 5-15.
A brush member 5 or 8 of a bunch of bristles is selectively attached to the gripping member 3 having a bent portion on both front and back surfaces to grind the interdental space, and then a normal type brush member 6 is similarly attached to the front and back surfaces. Since the surface can be selectively attached and the tooth surface can be polished, almost complete brushing is possible for any alignment of teeth.

[Brief description of the drawings]

FIG. 1 is a perspective view of a toothbrush equipped with a one-point brush member, showing an embodiment of a toothbrush according to the present invention.

FIG. 2 shows in detail a mounting structure of a connecting member and a brush member, which is a part of a toothbrush, and (a) is a plan view thereof.
(B) is a side view shown in section.

FIG. 3 is an exploded perspective view showing a component structure of a connecting member and a one-point brush member of a toothbrush according to another embodiment.

FIG. 4 is a perspective view showing a normal type brush member for replacement.

[Explanation of symbols]

 1 Toothbrush 2 Stem 3 Grasping member 4, 7, 10 Connecting member 5, 8 Brush member 6 Tightening member 9 Clamping holder 10 Normal type brush member

Claims (4)

[Claims] 1. A stem of a toothbrush has a connecting structure of a holding member and a connecting member, and a part of the holding member has an angle of 5 degrees.
A toothbrush characterized in that a one-point brush member having a bent portion of up to 15 degrees and having a bundle of bristles at one tip of the connecting member is mounted so that the projecting angle from the connecting member is variable. 2. A connecting member having 4 to 40 bundles of bristles formed at one end thereof and a connecting mechanism formed at the other end thereof is used by being fitted to a holding member common to the one-point brush member. Item 1. The toothbrush according to Item 1. 3. A structure in which a spherical portion is formed on the base of the flocking table of the one-point brush member, and the spherical portion is engaged with a spherical concave portion formed at the tip of the connecting member so as to be rotatably attached. Item 1. The toothbrush according to Item 1. 4. A pair of sandwich bearing plates in which a flocking table base is formed in a disc shape, and a shaft is formed in the center of the disc in a one-point brush member in which the disc part is formed at the tip of the connecting member. The toothbrush according to claim 1, wherein the toothbrush has a structure in which the brush member is rotatably attached by being pivotally supported on the toothbrush.