JP2021176429A - Interdental cleaner and interdental cleaner set - Google Patents

Abstract

To provide an interdental cleaner and interdental cleaner set which can prevent movement within a packaging container.SOLUTION: An interdental cleaner 1 includes a base material part 10 having a base part 11 and a shank part 12 extending from the base part 11, and a soft part 20 covering at least a part of the shank part 12. The soft part 20 includes a cover part 21 covering an outer peripheral surface of the shank part 12, and a plurality of projection parts 22 protruding from the cover part 21. The highest one of the projection parts 22 is arranged in a central section including a midpoint of the entire length of the interdental cleaner 1.SELECTED DRAWING: Figure 4

Description

The present invention relates to an interdental cleaning tool and an interdental cleaning tool set.

Conventionally, an interdental cleaning tool for cleaning the interdental space is known. For example, the interdental cleaning tool disclosed in Patent Document 1 includes a base material portion formed of a synthetic resin and a soft portion formed of an elastomer. The base material portion includes a flat handle portion as a handle and an elongated core base material portion extending from the tip of the handle portion. The soft portion includes a coating portion that covers at least a part of the core base material portion, and a plurality of protrusions that protrude from the surface of the coating portion.

International Publication No. 2013/176297

The interdental cleaning tool is usually sold in a packaging container in which a plurality of interdental cleaning tools are connected in parallel. The packaging container is composed of a flat blister made of a transparent synthetic resin material and a film covering the mouth of the blister, and a plurality of interdental cleaning tools are provided in a flat storage space formed by the blister and the film. Is placed. For example, when some interdental cleaning tools are used, there is room in the accommodation space for the used interdental cleaning tools. Therefore, when the packaging container is carried, the interdental cleaning tool may move in the accommodation space, and for example, the core base material portion, which is a portion inserted between the teeth, may be damaged.

Therefore, an object of the present invention is to provide an interdental cleaning tool and an interdental cleaning tool set capable of suppressing movement in a packaging container.

The interdental cleaning tool according to one aspect of the present invention includes a base portion, a base material portion having a shaft portion extending from the base portion, and a soft portion covering at least a part of the shaft portion, and is a soft portion. Includes a coating that covers the outer peripheral surface of the shaft and a plurality of protrusions that protrude from the coating, the highest of the protrusions including the midpoint of the entire length of the interdental cleaner. Placed in the central section of the interdental cleaner.

According to this aspect, in the interdental cleaning tool, the highest protrusion among the plurality of protrusions can come into contact with the inner surface of the packaging container in the central section including the midpoint of the entire length of the interdental cleaning tool. As a result, the interdental cleaning tool can be held in the packaging container at a position closer to the midpoint of the interdental cleaning tool, so that the movement of the interdental cleaning tool in the packaging container can be suppressed. Therefore, it is possible to prevent the interdental cleaning tool from being damaged. On the other hand, for example, even if the protrusion is biased in contact with the inner surface of the packaging container in a section other than the central section, the moment for moving the interdental cleaning tool with the protrusion as a fulcrum increases as the bias from the midpoint increases. Therefore, the interdental cleaning tool is easily moved.

In the above aspect, when the interdental cleaning tool is divided into a tip section on the tip side of the central section, a center section, and a base end section on the base end side of the center section, the tip section, the center section, and the base end The section length ratio is preferably 3: 4: 3.

The interdental cleaning tool set according to one aspect of the present invention is a packaging container that defines a space for accommodating the interdental cleaning tool by the interdental cleaning tool, the front surface side member, and the back surface side member facing the front surface side member. The interdental cleaning tool includes a base portion, a base portion having a shaft portion extending from the base portion, and a soft portion covering at least a part of the shaft portion, wherein the soft portion is a shaft. A covering portion that covers the outer peripheral surface of the portion and a plurality of protrusions protruding from the coating portion are provided, and the highest protrusion among the plurality of protrusions is used for interdental cleaning including the midpoint of the entire length of the interdental cleaning tool. Located in the central section of the tool, the front and / or back member of the packaging container contacts the highest protrusion of the central section of the interdental cleaning tool to hold the interdental cleaning tool in the packaging container.

According to this aspect, if the storage space of the packaging container has room for the interdental cleaning tool used, the highest protrusion among the plurality of protrusions in the central section including the midpoint of the interdental cleaning tool. Contact the front surface side member and / or the back surface side member. As a result, the interdental cleaning tool can be held at a position closer to the midpoint of the interdental cleaning tool in the accommodation space, so that the movement of the interdental cleaning tool in the accommodation space can be suppressed. Therefore, it is possible to prevent the interdental cleaning tool from being damaged. On the other hand, for example, even if the protrusion is biased in contact with the front surface side member and / or the back surface side member in a section other than the central section, the interdental cleaning tool is used with the protrusion as a fulcrum as the deviation from the midpoint increases. Since the moving moment increases, the interdental cleaning tool is easily moved.

In the above aspect, when the interdental cleaning tool is divided into a tip section on the tip side of the central section, a center section, and a base end section on the base end side of the center section, the tip section, the center section, and the base end The section length ratio is preferably 3: 4: 3.

According to the present invention, it is possible to provide an interdental cleaning tool and an interdental cleaning tool set capable of suppressing movement in a packaging container.

It is a front view which shows schematic structure of the interdental cleaning tool which concerns on one Embodiment of this invention. It is a top view which shows schematic structure of the interdental cleaning tool which concerns on one Embodiment of this invention. It is sectional drawing which follows the 3-3 line of FIG. It is a front view which shows schematic structure of the interdental cleaning tool set which concerns on one Embodiment of this invention. It is sectional drawing which follows the 5-5 line of FIG.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 to 3, the interdental cleaning tool 1 according to the embodiment of the present invention includes a base material portion 10 and a soft portion 20 that covers at least a part of the base material portion 10. There is. In the interdental cleaning tool 1, for example, 10 interdental cleaning tools 1 are connected in parallel in the lateral direction D1 of the interdental cleaning tool 1 by a pair of connecting portions 30 and 30 formed on the base material portion 10. It is individually separated from the connecting body 40 formed in the above.

The base material portion 10 extends between the base portion 11 gripped by the user and the longitudinal direction D2 orthogonal to the lateral direction D1 of the interdental cleaning tool 1 from the tip of the base portion 11 and is inserted between the teeth of the user. A shaft portion 12 and a shaft portion 12 are provided. In the present specification, the side from the base portion 11 toward the shaft portion 12 is the tip end side, and the side from the shaft portion 12 toward the base portion 11 is the base end side.

The base 11 is formed in a plate shape that spreads flat, for example, and in the present embodiment, it is formed in a flat rectangular parallelepiped shape, for example, but it is formed in another shape as long as it can be grasped by the user. May be done.

The shaft portion 12 extends in the longitudinal direction D2 from the tip end which is one end of the base portion 11. The shaft portion 12 includes a transition portion 13 that extends continuously from the base portion 11 in a flat plate shape, and a tip portion 14 that extends from the tip of the transition portion 13 to the tip of the shaft portion 12 in a thin axial shape. .. The transition portion 13 is formed in a tapered shape in which the width defined along the lateral direction D1 decreases toward the tip of the shaft portion 12.

The base material portion 10 is molded from, for example, a synthetic resin material. As the synthetic resin material, for example, polypropylene, polyethylene, ABS (acrylonitrile, butadiene, styrene), polybutylene terephthalate, polycarbonate, polyethylene terephthalate, polystyrene, polyacetal, polyamide and the like can be adopted. Further, a fiber material such as glass fiber may be added to the synthetic resin material at a ratio of, for example, about 1 to 30% by weight.

The soft portion 20 includes a covering portion 21 that covers at least a part of the outer peripheral surface of the tip portion 14 of the shaft portion 12, and a plurality of protrusions 22 that protrude from the covering portion 21. The protruding portion 22 is formed in a conical shape, for example, and is spirally arranged around the axial center of the tip portion 14 of the shaft portion 12 from the base end to the tip end of the covering portion 21. In the present embodiment, the height of the protrusion 22 from the outer peripheral surface of the covering 21 decreases from the base end to the tip of the covering portion 21. That is, the height of the protrusion 22 is maximum on the most proximal side of the covering portion 21.

The soft portion 20 is formed of a resin material having a hardness lower than the hardness of the synthetic resin material of the base 10. An elastomer can be used as the resin material, and as the elastomer, a styrene-based elastomer, silicone, an olefin-based elastomer, a polyester-based elastomer, or the like may be used. The hardness of the elastomer is preferably 10 to 50, more preferably 10 to 40 for the durometer hardness type A (JISK6253). In this embodiment, the durometer hardness type A is 35.

In the interdental cleaning tool 1 of the present embodiment, the length L1 of the base material portion 10 defined in the longitudinal direction D2 is set to, for example, 45 mm to 55 mm. In the present embodiment, the length L1 of the base material portion 10 is set to 50 mm. The length L1 of the base material portion 10 substantially matches the length of the interdental cleaning tool 1. The width W1 of the base 11 defined in the lateral direction D1 is set to, for example, 3 mm to 10 mm. Further, the thickness T1 of the base portion 11 defined in the thickness direction D3 orthogonal to the lateral direction D1 and the longitudinal direction D2 is set to, for example, 0.5 mm to 10 mm.

The length from the base end to the tip end of the covering portion 21 defined in the longitudinal direction D2 is set to, for example, 10 mm to 25 mm. The length of the covering portion 21 defined in the longitudinal direction D2 is preferably 15 mm or more, and in the present embodiment, the length of the covering portion 21 is set to, for example, 20 mm. The covering portion 21 is formed to have a uniform thickness at the same position in the longitudinal direction D2, and the thickness is set to, for example, 0.1 mm to 2.5 mm. The height of the protruding portion 22 from the outer peripheral surface of the covering portion 21 is set to, for example, 0.1 mm to 5.0 mm.

The cross section of the tip portion 14 of the shaft portion 12 orthogonal to the axis of the shaft portion 12 is set to have a substantially perfect circular shape. The tip portion 14 is formed in a tapered shape whose diameter decreases from the base end to the tip, and the diameter is set to, for example, 0.6 mm to 3.0 mm.

Referring to FIG. 1, in the longitudinal direction D2, each interdental cleaning tool 1 is divided into a tip section, a center section, and a base end section. In other words, the length L1 of the interdental cleaning tool 1 is divided into these three sections. The central section is a region including the midpoint of the total length (length L1) of the interdental cleaning tool 1 in the longitudinal direction D2. The tip section is a region on the tip side of the center section, and the base section is a region on the base end side of the center section.

The ratio of the lengths of the tip section, the center section and the base section in the longitudinal direction D2 is 3: 4: 3. In the present embodiment, since the length L1 of the base material portion 10 is set to 50 mm, the length of the tip section is 15 mm, the length of the center section is 20 mm, and the length of the base end section is 15 mm. On the other hand, in the present embodiment, the length of the covering portion 21 is 20 mm, and the highest protruding portion 22 arranged on the most proximal side of the covering portion 21 is arranged in the central section. The height referred to here refers to the distance from the axial center of the shaft portion 12 to the tip of the protrusion portion 22, but in the present embodiment, the distance is the protrusion arranged on the most proximal side of the covering portion 21. It becomes the maximum in the part 22. In addition, protrusions 22 other than the highest protrusion 22 may be arranged in the central section.

FIG. 4 is a front view showing an interdental cleaning tool set according to an embodiment of the present invention. The interdental cleaning tool set includes a connecting body 40 of the interdental cleaning tool 1 and a packaging container 50 for accommodating the connecting body 40. The packaging container 50 includes, for example, a front surface side member 60 which is a flat blister, and a back surface side member 70 which faces, for example, a front surface side member 60 which is a film. The surface side member 60 is formed of, for example, a transparent synthetic resin material, and defines a flat storage space for accommodating the connecting body 40. The mouth of the accommodating space is covered with, for example, a back surface side member 70 formed of a synthetic resin film, and the back surface side member 70 is detachably attached to a flange portion extending outward from the accommodating space of the front surface side member 60. It is pasted on. The contour of the flange portion matches the contour of the back surface side member 70. According to such a configuration, after the back surface side member 70 is once peeled off from the front surface side member 60 and the interdental cleaning tool 1 is taken out, the back surface side member 70 can be attached to the flange portion of the front surface side member 60 again.

As is clear from FIG. 4, the length of the storage space of the packaging container 50 corresponding to the length L1 of the interdental cleaning tool 1 is set to be substantially the same as the length L1 of the interdental cleaning tool 1. Therefore, the tip section, the center section, and the base end section of the interdental cleaning tool 1 can be similarly applied to the storage space of the packaging container 50. The width of the accommodating space is set to a size capable of accommodating, for example, the connecting body 40 of 10 interdental cleaning tools 1. On the other hand, as shown in FIG. 5, the thickness of the accommodation space is set so that at least the highest protrusion 22 is pressed against the inner surfaces of the front surface side member 60 and the back surface side member 70. In the central section, the protrusions 22 other than the highest protrusion 22 may be pressed against the inner surface of the front surface side member 60 and / or the back surface side member 70.

According to the interdental cleaning tool 1 as described above, when some interdental cleaning tools 1 are separated from the connecting body 40 and used, the interdental cleaning tool used in the width direction of the packaging container 50 is accommodated. You can afford 1 minute. In such a case, in each interdental cleaning tool 1, at least the highest protrusion 22 is pressed against the front surface side member 60 and / or the back surface side member 70 in the central section including the midpoint of the length L1. As a result, the interdental cleaning tool 1 can be held at a position closer to the midpoint of the interdental cleaning tool 1 in the accommodation space, so that the movement of the interdental cleaning tool 1 in the accommodation space can be suppressed. can. Therefore, it is possible to prevent the interdental cleaning tool 1 from being damaged. On the other hand, for example, even if the protrusion 22 is biased against the front surface side member 60 and / or the back surface side member 70 in a section other than the central section, the protrusion 22 is used as a fulcrum as the deviation from the midpoint increases. Since the moment for moving the interdental cleaning tool 1 increases, it is easy to cause the interdental cleaning tool 1 to move.

Next, a method of manufacturing the interdental cleaning tool 1 will be described below. First, the molten synthetic resin material is filled in the filling space of the first mold that imitates the outer shape of the base material portion 10, and the base material portion 10 is molded. After that, the base material portion 10 is taken out from the first mold. Subsequently, the molded base material portion 10 is arranged in the filling space of the second mold that imitates the outer shape of the soft portion 20. The filled space is filled with the molten elastomer and the soft portion 20 is formed. In this way, the interdental cleaning tool 1 is formed. The interdental cleaning tool 1 is then taken out of the second mold.

The embodiments described above are for facilitating the understanding of the present invention, and are not for limiting and interpreting the present invention. Each element included in the embodiment and its arrangement, material, condition, shape, size, and the like are not limited to those exemplified, and can be changed as appropriate. In addition, the configurations shown in different embodiments can be partially replaced or combined.

1 ... Interdental cleaning tool, 10 ... Base material part, 11 ... Base part, 12 ... Shaft part, 20 ... Soft part, 21 ... Cover part, 22 ... Protrusion part

Claims (4)

A base material portion having a base portion and a shaft portion extending from the base portion,
A soft portion that covers at least a part of the shaft portion is provided.
The soft portion is an interdental cleaning tool including a coating portion that covers the outer peripheral surface of the shaft portion and a plurality of protrusions protruding from the coating portion.
An interdental cleaning tool in which the highest protrusion among the plurality of protrusions is arranged in the central section of the interdental cleaning tool including the midpoint of the entire length of the interdental cleaning tool. When the interdental cleaning tool is divided into a tip section on the tip side of the central section, the center section, and a base end section on the base end side of the center section, the tip section, the center section, and the center section. The interdental cleaning tool according to claim 1, wherein the ratio of the lengths of the proximal sections is 3: 4: 3. Tooth cleaning tool and
An interdental cleaning tool set including a front surface side member and a packaging container in which a back surface side member facing the front surface side member defines a space for accommodating the interdental cleaning tool.
The interdental cleaning tool
A base material portion having a base portion and a shaft portion extending from the base portion,
A soft portion that covers at least a part of the shaft portion is provided.
The soft portion includes a coating portion that covers the outer peripheral surface of the shaft portion, and a plurality of protrusions that protrude from the coating portion.
The highest protrusion of the plurality of protrusions is located in the central section of the interdental cleaner, including the midpoint of the overall length of the interdental cleaner.
The front surface side member and / or the back surface side member of the packaging container contacts the highest protrusion of the central section of the interdental cleaning tool to hold the interdental cleaning tool in the packaging container. Intertooth cleaning tool set. When the interdental cleaning tool is divided into a tip section on the tip side of the central section, the center section, and a base end section on the base end side of the center section, the tip section, the center section, and the center section. The interdental cleaning tool set according to claim 3, wherein the ratio of the lengths of the proximal sections is 3: 4: 3.

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