JP3194964U - toothbrush - Google Patents

Abstract

Disclosed is a toothbrush using a melamine sponge that can eliminate the waste of the melamine sponge and can be easily replaced. A toothbrush (50) having a handle (10) and a melamine sponge (30) that can be attached to and detached from a holding portion (20) formed at one end of the handle, the holding portion extending along a bottom plate and an outer peripheral edge of the bottom plate. The outer dimensions of the melamine sponge are larger than the inner dimensions of the holding portion, and at least one of the bottom plate and the inner surface of the side walls is provided with an outer side of the melamine sponge. A claw portion 40 (conical body 42, ring-shaped protruding portion 44) is provided for biting into the bottom surface or the outer peripheral surface. [Selection] Figure 1

Description

  The present invention relates to a toothbrush, and more particularly to a toothbrush using a melamine sponge.

The melamine sponge is sometimes called a melamine foam, and is a sponge made of a synthetic resin in which fine bubbles are contained. When such a melamine sponge is used, the object to be cleaned can be removed without using a detergent, and it is widely used.
In recent years, for example, as shown in Patent Document 1, a toothbrush using a melamine sponge has been provided, and a toothbrush that can easily remove stains such as stains attached to teeth by ingestion of coffee or tea. Are known.

Registered Utility Model No. 3171718

  Patent Document 1 discloses a configuration of an electric melamine sponge toothbrush in which a melamine sponge is attached to a tip portion of a handle. The electric melamine sponge toothbrush disclosed in Patent Document 1 employs a configuration in which a long melamine sponge is mounted in a state where the melamine sponge is folded at the tip of the handle as shown in the figure. Since the part where such a melamine sponge toothbrush actually contacts the tooth is only a limited part of the long melamine sponge, most parts of the melamine sponge are used for brushing teeth. Will not be.

That is, when using the melamine sponge toothbrush disclosed in Patent Document 1, there is a problem that the running cost increases.
In addition, when the melamine sponge is attached, the ends of the melamine sponge in the longitudinal direction must be wound using a string or the like, and therefore, there is a problem that the labor for replacing the melamine sponge is complicated.

  Therefore, the present invention aims to provide a toothbrush using a melamine sponge that eliminates the waste of the melamine sponge and can be easily replaced.

As a result of intensive studies to solve the above problems, the inventor has come up with the following configuration.
That is, a toothbrush having a handle and a melamine sponge that can be attached to and detached from a holding portion formed at one end of the handle, the holding portion being erected along the outer periphery of the bottom plate and the bottom plate The outer dimensions of the melamine sponge are larger than the inner dimensions of the holding portion, and at least one of the bottom plate and the inner surface of the side walls has the melamine sponge. The toothbrush characterized by the nail | claw part for making it bite into the outer bottom face or outer peripheral surface of this being arrange | positioned.

  Thereby, replacement | exchange of a melamine sponge can be performed easily and the drop-off | omission from the holding | maintenance part of the melamine sponge hold | maintained at the holding | maintenance part can be prevented.

  Further, the claw portion on the inner side surface of the side wall has a triangular cross-sectional shape standing radially inward from the inner side surface of the side wall, and the claw portion of the inclined surface forming the triangular cross-sectional shape in the claw portion It is preferable that the inclined surface located on the bottom plate side of the holding portion is parallel to the bottom plate.

  Moreover, it is preferable that the said nail | claw part in the inner surface of the said side wall is circumferentially provided along the inner surface of the said side wall.

  Moreover, it is preferable that the said nail | claw part is arrange | positioned in the some height position in the inner surface of the said side wall.

  By these, it is possible to more reliably prevent the melamine sponge attached to the holding part from falling off.

According to the configuration of the toothbrush according to the present invention, all of the upper end surface of the melamine sponge is used as a contact portion with the tooth, so that the waste of the melamine sponge as a consumable member is greatly reduced compared to the conventional technology. The running cost can be reduced.
In addition, since the work for attaching the melamine sponge to the holding portion can be easily performed in a short time, and the attached melamine sponge can be prevented from falling off, the usability is good.

It is a perspective view of the toothbrush concerning this embodiment. It is an expansion perspective view of a holding part. It is an enlarged plan view of a holding part. It is sectional drawing in the AA in FIG. It is sectional drawing which shows a melamine sponge before mounting | wearing with a holding | maintenance part and a holding | maintenance part. It is sectional drawing which shows the state which assembled FIG.

  Hereinafter, embodiments of a toothbrush according to the present invention will be specifically described with reference to the drawings. As shown in FIG. 1, the toothbrush 50 according to the present embodiment includes a handle 10, a melamine sponge 30 that can be attached to and detached from a holding portion 20 formed at a tip portion of the handle 10, and a nail provided in the holding portion 20. Part 40.

  As shown in FIGS. 2 and 3, the holding portion 20 provided at one end of the handle 10 includes a bottom plate 22 having a circular shape in plan view, and a side wall erected along the outer peripheral edge of the bottom plate 22. 24 is formed in a concave shape. A plurality of conical bodies 42 are arranged on the bottom plate 22 in an arrangement along the side wall 24.

  A ring-shaped projecting portion 44 that projects radially inward is disposed on the inner surface of the side wall 24. The ring-shaped protrusion 44 is provided around the inner surface of the side wall 24. A plurality of ring-shaped protrusions 44 are arranged at different height positions on the inner surface of the side wall 24. In the present embodiment, ring-shaped protrusions 44 are arranged at three locations. The ring-shaped projecting portion 44 is formed in a triangular shape in cross-section in a direction orthogonal to the extending direction of the ring-shaped projecting portion 44 (the direction around the inner surface of the side wall 24). As shown in FIG. 4, the slope 44B on the bottom plate 22 side among the slopes 44A and 44B forming the triangular cross-sectional shape of the ring-shaped protrusion 44 is parallel to the bottom plate 22 (perpendicular to the inner surface of the side wall 24). To stand). In other words, the ring-shaped projecting portion 44 has a right-angled triangle cross-sectional shape in the direction orthogonal to the extending direction.

  As described above, in the present embodiment, the claw portion 40 is configured by the conical body 42 and the ring-shaped protruding portion 44, but the claw portion 40 is formed by only one of the conical body 42 and the ring-shaped protruding portion 44. A form in which is configured may be adopted.

  The melamine sponge 30 that is detachably attached to the holding unit 20 is formed in a cylindrical body, as is apparent from FIGS. 1 and 5. Further, the outer dimension (outer diameter dimension in the present embodiment) of the melamine sponge 30 is formed larger than the inner dimension (inner diameter dimension in the present embodiment) of the holding portion 20. In the present embodiment, when the melamine sponge 30 is mounted on the holding unit 20, the melamine sponge 30 is mounted on the holding unit 20 in a state of being elastically deformed so as to reduce the diameter. The melamine sponge 30 thus mounted on the holding unit 20 attempts to restore the original shape of the melamine sponge 30 by elastic force (restoring force) in the holding unit 20. For this reason, the melamine sponge 30 is in close contact with the inner side surface of the side wall 24 of the holding part 20, and the melamine sponge 30 once attached to the holding part 20 is easily attached to the holding part 20 without falling off the holding part 20. become.

  Furthermore, in the present embodiment, a conical body 42 which is a claw portion 40 for causing the melamine sponge 30 attached to the holding portion 20 to bite into the upper surface of the bottom plate 22 and the inner side surface of the side wall 24 of the holding portion 20. And a ring-shaped protrusion 44. As shown in FIG. 6, the claw portion 40 composed of the conical body 42 and the ring-shaped protruding portion 44 bites into the outer bottom surface and the outer peripheral surface of the melamine sponge 30 attached to the holding portion 20 and exhibits a so-called wedge effect. Can do. In particular, the ring-shaped projecting portion 44 erected on the inner surface of the side wall 24 is inclined so as to gradually approach the bottom plate 22 as the slope 44A on the opening side (upper side) of the holding portion 20 approaches the bottom plate 22 side. The inclined surface 44B on the bottom plate 22 side (lower side) of the holding portion 20 has a right triangle cross-sectional shape that is parallel to the upper surface of the bottom plate 22.

By adopting such a shape of the ring-shaped protruding portion 44, when the melamine sponge 30 is pushed into the holding portion 20 and attached, there is no great resistance, and the melamine sponge 30 is once attached to the holding portion 20. Then, sufficient resistance to the force that bites into the outer peripheral surface of the melamine sponge 30 and the melamine sponge 30 is about to be detached from the holding portion 20 can be obtained.
By disposing the claw portion 40 on the holding portion 20 in this way, the mounting state of the melamine sponge 30 to the holding portion 20 becomes stronger, and a force that deforms the melamine sponge 30 acts during brushing. However, the melamine sponge 30 is not detached from the holding part 20, and the toothbrushing can be performed with confidence.

  Further, the conical body 42 erected on the bottom plate 22 of the holding unit 20 bites into the outer bottom surface of the melamine sponge 30 and reliably prevents displacement (slip) with respect to the rotation direction of the melamine sponge 30 mounted on the holding unit 20. It works. Such a conical body 42 is particularly effective when the holding portion 20 is an electric toothbrush that can be driven to rotate with respect to the handle 10. Also in the manual toothbrush 50, by disposing the conical body 42, it is possible to obtain an effect of preventing the displacement of the melamine sponge 30 attached to the holding unit 20, and the melamine sponge 30 is more easily detached from the holding unit 20. This is advantageous in that it can be surely prevented.

  As mentioned above, although the toothbrush 50 concerning this invention was demonstrated based on embodiment, this invention is not limited to embodiment shown above, Each structure is changed in the range which does not change the summary of invention. Even in such a case, it belongs to the technical scope of the present invention. For example, in the present embodiment, the melamine sponge 30 is formed in a columnar shape, but a form of the melamine sponge 30 formed in another polygonal shape represented by a rectangular shape can also be adopted.

  Although not shown, if the melamine sponge 30 formed in the cone is adopted, it is convenient for removing dirt between teeth, and if the melamine sponge 30 formed in the shape of the frustum is adopted, this Since the pressure applied to the tooth surface is increased as compared with the embodiment, it is advantageous in that the dirt on the teeth can be easily removed.

  Further, as a specific example of the holding unit 20, the embodiment using the holding unit 20 formed in a circular shape in plan view has been described. However, the shape in plan view of the holding unit 20 (bottom plate 22) is circular. It is not limited and may be formed in a polygonal plan view shape. The planar shape of the holding portion 20 and the planar shape of the melamine sponge 30 are preferably the same shape, and the melamine sponge 30 is formed to be slightly larger than the inner space of the concave portion of the holding portion 20. It is preferable.

  Further, in the present embodiment, a description is given of a form in which the slope 44B on the bottom plate 22 side of the ring-shaped protrusion 44 extends in a direction orthogonal to the inner surface of the side wall 24 (in a direction parallel to the bottom plate 22). It is not limited to this form. The inclined surface 44 </ b> B on the bottom plate 22 side of the ring-shaped protruding portion 44 may be an inclined surface that is inclined toward the opening side of the holding portion 20. Similarly to the inclined surface 44A, the inclined surface 44B may be formed on an inclined surface that gradually approaches the bottom plate 22 side (lower side) as it extends (separates) from the inner surface of the side wall 24. Thereby, the melamine sponge 30 can be held more strongly.

Further, the ring-shaped protruding portion 44 may be configured to be disposed at only one location on the side wall 24. Furthermore, instead of disposing the ring-shaped protrusion 44 on the inner surface of the side wall 24, the conical body 42 can be disposed on the inner surface of the side wall 24.
And it is also possible to employ | adopt the structure which combined embodiment and the modification which were demonstrated above suitably.

10 handles, 20 holding parts, 22 bottom plate, 24 side walls,
30 melamine sponge,
40 claw portions, 42 conical bodies, 44 ring-shaped protruding portions, 44A, 44B slopes,
50 toothbrush

Claims (4)

A toothbrush having a handle and a melamine sponge that can be attached to and detached from a holding portion formed at one end of the handle,
The holding portion has a bottom plate and a side wall erected along the outer peripheral edge of the bottom plate,
The outer dimension of the melamine sponge is formed larger than the inner dimension of the holding part,
At least one of the bottom plate and the inner side surface of the side wall is provided with a claw portion for biting into an outer bottom surface or an outer peripheral surface of the melamine sponge. The claw portion on the inner side surface of the side wall has a triangular cross-sectional shape that rises radially inward from the inner side surface of the side wall,
The toothbrush according to claim 1, wherein the inclined surface that is located on the bottom plate side of the holding portion among the inclined surfaces that form the triangular cross-sectional shape in the claw portion is parallel to the bottom plate.   The toothbrush according to claim 2, wherein the claw portion on the inner side surface of the side wall is provided around the inner side surface of the side wall.   The toothbrush according to claim 3, wherein the claw portion is disposed at a plurality of height positions on an inner surface of the side wall.

Images