JP2022065741A - toothbrush - Google Patents

Abstract

To provide a toothbrush of improved design and improved functionality by applying a specular effect to the toothbrush to solve the following problem: a user is brushing with a toothbrush for more than once every day to maintain dental health and, since it is preferable in terms of oral hygiene to check if there are parts on the rear side of the teeth or back teeth that are left unbrushed, a mirror is fitted to a toothbrush formed into a rod shape to reflect the rear side of the teeth on a large mirror of a wash stand; on the other hand, although there is a toothbrush devising a printing method onto a grip or the like to improve design, there has been no such toothbrush as achieving both design and the function to check brushing.SOLUTION: A grip is made of a transparent material, and a front surface or a back surface of the grip is provided with a metallic color printing layer. A grip surface facing the metallic color printing surface is applied by patterns. Moreover, the grip is formed into circular, elliptical, and polygonal shapes.SELECTED DRAWING: Figure 1

Description

The present invention relates to a toothbrush. More specifically, the present invention relates to the invention of a toothbrush having excellent design and functionality.

It is desirable to check whether the toothbrush was brushed correctly during brushing with a toothbrush or after brushing, and whether there is any unpolished residue. Therefore, there is a toothbrush to which a material is attached, which has a mirror effect so that the back side of the tooth and the inside of the oral cavity can be observed (Patent Document 1).

In addition, the pattern of the toothbrush is formed of a transparent material, four layers of printing are applied to the pattern, and a transparent paint is used for the fourth layer, which is the outermost layer, to protect the laminated and printed design. At the same time, there is an invention of a toothbrush that has an effect of emphasizing a three-dimensional effect (Patent Document 2).

Further, in order to improve the design of the toothbrush, there is an invention of a toothbrush in which not only the front side or the back side but also the side surface is printed to increase the printed area (Patent Document 3).

Japanese Unexamined Patent Publication No. 10-42960 Japanese Unexamined Patent Publication No. 2013-132301 Japanese Unexamined Patent Publication No. 2020-709

In order to maintain the health of the teeth, brushing is performed using a toothbrush in the morning and evening and after each meal. It is preferable for oral hygiene to check the back side of the teeth and the presence or absence of unpolished teeth on the back side of the teeth or after brushing.

Normally, brushing is done in front of a washroom or washbasin where a mirror is installed, so open your mouth wide toward the mirror to observe the inside of the oral cavity, but brush the back of the teeth and the back teeth. It is difficult to find the leftovers reliably.

Therefore, a mirror is provided on the back side of the toothbrush and the tip of the grip, which is generally formed in a rod shape, and the back side of the tooth is projected on the large mirror of the washbasin to check the brushing condition of the tooth. There is a toothbrush described in 1, but the design of the toothbrush has not been devised. In addition, the method of attaching a seal or mirror surface material to the toothbrush has poor durability, and there is a problem in terms of safety when considering inserting it into the oral cavity for inspection.

On the other hand, there are toothbrushes described in Cited Document 2 and Cited Document 3 as inventions in which printing on a grip or the like is devised in order to improve the design of the toothbrush. However, although these toothbrushes have design, they do not have functionality at the same time.

Therefore, in the present application, a toothbrush made of a transparent material is printed in metallic color to give a mirror effect, and a pattern or the like applied to the opposite surface is projected on the metallic color printed surface to give an aesthetic effect. The purpose is to provide a toothbrush.

In order to solve the above problems, the grip of the toothbrush of the present application is formed of a transparent material, metallic color printing having a mirror effect is applied to the back surface or the front surface of the grip, and patterns, characters, figures, etc. are printed on the facing surface. It is. In addition, the metallic color print layer is scraped off and a line drawing is applied.

As the above-mentioned pattern, an uneven pattern such as an engraving is applied.

Further, the grip shape of the toothbrush is formed into a circular shape, an elliptical shape, or a polygonal shape.

Depending on the shape of the grip, a design different from the design applied to the surface of the toothbrush is projected inside the transparent toothbrush. In addition, the design of the toothbrush is improved, such as being able to enjoy how the pattern changes depending on the viewing direction, making tooth brushing fun.

Since the grip of the toothbrush is transparent, the pattern applied to the toothbrush is projected three-dimensionally on the metallic color print layer, improving the design. Especially when the cross section of the toothbrush is circular, elliptical or polygonal, the surface pattern changes in a complicated manner depending on the viewing angle.

By scraping off the metallic print layer and applying a line drawing pattern, the pattern expressed on the metallic print layer can be enjoyed, and the line drawing emerges from the facing surface in the transparent grip, allowing you to enjoy different facial expressions of the same line drawing.

Metallic color printing, which has a mirror effect on the surface of the toothbrush, also has the effect of a mirror, which is convenient because you can check the state of tooth brushing on the spot during and after brushing.

Since the mirror effect is applied by printing, it is superior in terms of durability and safety compared to attaching a mirror or a sticker itself.

Since the toothbrush itself has a Miller effect, there is no need to prepare a separate instrument mirror in addition to the toothbrush, and the brushing state can be checked anytime, anywhere. This raises awareness of the importance of oral hygiene and contributes to the improvement of oral hygiene.

a Rear view of the toothbrush of the present application b Same as above, front view. The same, enlarged explanatory view of the grip cross section. An enlarged explanatory view of a grip cross section of another embodiment.

Next, an embodiment of the toothbrush according to the present invention will be described in detail with reference to the drawings.

1a is a rear view of the toothbrush 1 according to the present application, and b is a front view thereof. The toothbrush 1 is composed of a head 2 in which a large number of brushes 6 are transplanted, a grip 4 that grips the toothbrush during brushing, and a portion called a neck 3 that connects the head 2 and the grip 4.

The main body is lightweight and has an elongated shape suitable for gripping by hand. The material is preferably a synthetic resin, for example, a polyester resin typified by a PET resin or an ethylene resin.
The portion where the pattern 5 is printed is colorless and transparent or colored transparent.

In this embodiment, printing with a mirror effect is performed with a silver metallic color ink. Silver metallic seems to be the most suitable as a color that produces a mirror effect, but it is not limited to silver as long as it produces the same effect, and other colors may be used.

Silver metallic printing is applied from the bottom of the neck on the back side to the entire grip (the shaded area). It suffices if the silver metallic printing can be visually recognized from the front side, and other colors may be superimposed on a part of the silver metallic layer or a pattern may be added.

The cross-sectional shape of the grip can be elliptical, circular, polygonal, or the like. The flocked side of the grip is the front of the toothbrush, the opposite portion is the back, and the space between the front and the back is both sides.

In addition, the shape of the entire toothbrush can be changed in various ways, such as a straight line from the head to the grip, or the head being bent toward the flocked side.

Silver metallic printing is applied to the back or front of the grip, and the printed surface may be extended to the side surface. It is basically printed on either the back or front of the grip surface below the neck.

On the other hand, the pattern 5 projected on the silver metallic printing is printed on a part or the entire surface of the front side facing the silver metallic printing surface in the embodiment.

Examples of designs are illustrations and characters such as patterns, letters, figures, and animals. Patterns formed on the front side can be freely applied, such as patterns consisting only of shapes, patterns using one color, using multiple colors, patterns with colors such as gradation patterns, patterns consisting only of engravings, and combinations of engravings and colors. It is possible.

Since the toothbrush of the present application has a print layer printed in metallic color on the back side of the toothbrush, patterns and colors printed and engraved on the front side of the grip made of transparent material pass through the inside of the transparent grip of the toothbrush. It is projected on the metallic color print layer and becomes a deep three-dimensional pattern and design that can be visually recognized from the front side.

On the other hand, if the metallic color print layer is scraped off and line drawing is applied, both the line drawing that can be visually recognized directly and the line drawing that is partially enlarged and emerges intricately inside the transparent grip can be enjoyed.

Further, as shown in FIG. 2, since the cross section of the toothbrush 1 is substantially elliptical, the inside of the grip back surface side 4b has a concave curved surface. The pattern 5 is projected in a deformed shape on a concave curved surface, and a pattern different from the pattern 5 applied to the grip front side 4a is projected inside the toothbrush.

On the other hand, the metallic printing surface 7 provided on the toothbrush exerts a mirror effect, the grip is inserted into the oral cavity, and the state of the teeth reflected on the metallic color printing surface 7 is reflected on a large mirror in the washroom to check the brushing state. You can do it.

FIG. 3 is an enlarged cross-sectional explanatory view of the toothbrush 8 according to another embodiment.

The back side 9b of the grip 9 of the toothbrush 8 has a shape of substantially the lower half of a hexagon, and the front side 9a has a gentle curved surface.

The back side 9b is a metallic color printing surface 10 painted with a silver metallic color. A plurality of patterns (not shown) printed on the front surface of the grip 9a are projected on the back surface and the side surface inside the grip of the toothbrush as projected on the three-sided mirror.

The metallic color printing that produces a mirror effect may be applied to either the back surface or the front surface of the grip, or may be applied so as to extend to the side surface portion of the grip.

The shape of the toothbrush surface to which mirror printing is applied, the shape of the facing surface, and the pattern applied to the surface of the toothbrush change the pattern projected inside the toothbrush in various ways, and the pattern projected changes depending on the viewing direction, so the toothbrush The design of the toothbrush is improved, the added value of the toothbrush is increased, and the toothbrushing time becomes more enjoyable.

For example, if the cross section of the toothbrush is circular, elliptical or polygonal, or if a groove is formed on the metallic color printing surface or the surface facing the groove, the color or pattern projected inside the grip is complicated depending on the viewing direction. It changes to.

The above embodiment is only one embodiment of the present invention, and can be appropriately modified without departing from the gist of the invention.

For example, it is possible to bend the tip of the grip to the side opposite to the flocked side to provide the back side of the tooth in a shape that is easy to see.

Further, the portion to be subjected to metallic color printing may be the entire back side below the neck, or may be a part thereof.

The present invention can be applied to toothbrushes. It applies to all toothbrushes from children to adults, and can be applied to all toothbrushes used for oral hygiene regardless of the purpose of the toothbrush and the shape of the brush.

1, 8, toothbrush 2, head 3, neck 4, grip 5, pattern 6, brush 7, 10, metallic color printed surface

Claims (4)

A toothbrush with a transparent grip
A toothbrush with a print layer with metallic color printing on the front or back of the grip. The toothbrush according to claim 1, wherein a print layer on which metallic color printing is applied or a pattern is applied to the opposite surface of the print layer. The toothbrush according to claim 1 or 2, wherein the pattern is engraved. The toothbrush according to any one of claims 1 to 3, wherein the cross-sectional shape of the grip is a circular shape, an elliptical shape, or a polygonal shape.

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